Contents dispensing pump

Abstract

The present invention relates to a contents dispensing pump which is coupled to a container (V) for accommodating the contents therein and dispenses the contents, comprising: a pump main body (10); a pump upper body (20); a pump inner body (30); a dispensing valve (40); and an elastic member (50). The pump upper body (20) is coupled to the upper side of the pump main body (10) so that a pumping operation is made by an up and down movement with respect to the pump main body (10). The pump inner body (30) has a bowl shape with the middle thereof formed to be dented so that an inlet valve plate (70) is integrally formed on the lower surface. The dispensing valve (40) is coupled to the upward side of the pump upper body (20), and has, formed therein, a valve protrusion wheel (41) for opening and closing the content outlet (23). The elastic member (50) is positioned between the upper lateral surface extension piece (33) and the lower lateral surface extension piece (34) of the pump inner body (30) so as to draw the pump inner body (30) and simultaneously elastically support the pump main body (10) and the pump upper body (20).

Claims

1. A contents dispensing pump coupled to a container (V) for containing contents therein to dispense the contents, the contents dispensing pump comprising: a pump main body (10) including a main body lower plate (11) provided at a central portion thereof with a content inlet (12); a pump upper body (20) coupled to an upper portion of the pump main body (10) to move vertically with respect to the pump main body (10) and provided with a dispensing protrusion rod (24) having a content outlet (23); a pump inner body (30) positioned in the pump main body (10) and provided at a lower surface thereof with an absorbing valve plate (70); a dispensing valve (40) provided with a valve protrusion wheel (41) for opening or closing the content outlet (23), having a coupling protrusion wheel (42) which surrounds the dispensing protrusion rod (24); and an elastic member (50) positioned at an outside of the pump inner body (30) to tensely stretch the pump inner body (30) and elastically support the pump main body (10) and the pump upper body (20), wherein the dispensing valve (40) is positioned on a top surface of the pump upper body (20), wherein the pump inner body (30) comprises: a corrugate tube (31) formed below a side surface of the pump inner body (30) to be inwardly folded while the elastic member (50) is compressed, and having a lower side surface extension piece (34) integrally formed at an outside of a lower end thereof; a pump upper body coupling piece (32) having a substantially cylindrical shape on an upper portion of the pump inner body (30); and an upper side surface extension piece (33) extending from an outer side of an upper end of the pump upper body coupling piece (32), wherein the elastic member (50) is installed from the upper side surface extension piece (33) to the lower side surface extension piece (34), wherein the pump inner body (30) is made of an elastic material, and wherein a horizontal distance of the pump inner body (30) is greater than a height of the pump inner body (30).

2. A contents dispensing pump coupled to a container (V) for containing contents therein to dispense the contents, the contents dispensing pump comprising: a pump upper body (20) coupled to an upper portion of a pump main body (10) to move vertically with respect to the pump main body (10) and provided with a dispensing protrusion rod (24) having a content outlet (23); and a dispensing valve (40) provided with a valve protrusion wheel (41) for opening or closing the content outlet (23) having a coupling protrusion wheel (42) which surrounds the dispensing protrusion rod (24), wherein, when an upper surface of the pump upper body (20) or the dispensing valve (40) is pushed to allow the pump upper body (20) to move down with respect to a pump main body (10), a corrugate tube (31) of a pump inner body (30) is formed below a side surface of the pump inner body (30) to be inwardly folded while an elastic member (50) is compressed such that a volume of a content temporary reservoir (TR) is reduced to generate a discharge pressure in the content temporary reservoir (TR), wherein, when contents in the content temporary reservoir (TR) are pressed to be output through a content outlet (23), a valve protrusion wheel (41) coming into close contact with the content outlet (23) is widened by the discharge pressure such that the contents are dispensed through a gap between the content outlet (23) and the valve protrusion wheel (41), and wherein an absorbing valve plate (70) is downward pressed by the discharge pressure of the content temporary reservoir (TR) to close the content inlet (12) of the pump main body (10), wherein the dispensing valve (40) is positioned on a top surface of the pump upper body (20), wherein the pump inner body (30) comprises: a pump upper body coupling piece (32) having a substantially cylindrical shape on an upper portion of the pump inner body (30); and an upper side surface extension piece (33) extending from an outer side of an upper end of the pump upper body coupling piece (32), wherein the corrugate tube (31) has a lower side surface extension piece (34) integrally formed at an outside of a lower end thereof; wherein the elastic member (50) is installed from the upper side surface extension piece (33) to the lower side surface extension piece (34), wherein the pump inner body (30) is made of an elastic material, and wherein a horizontal distance of the pump inner body (30) is greater than a height of the pump inner body (30).

3. A contents dispensing pump coupled to a container (V) for containing contents therein to dispense the contents, the contents dispensing pump comprising: a pump upper body (20) coupled to an upper portion of a pump main body (10) to move vertically with respect to the pump main body (10) and provided with a dispensing protrusion rod (24) having a content outlet (23); and a dispensing valve (40) provided with a valve protrusion wheel (41) for opening or closing the content outlet (23), having a coupling protrusion wheel (42) which surrounds the dispensing protrusion rod (24), wherein, when a pressure on an upper surface of the pump upper body (20) or the discharge valve (40) is removed, the pump upper body (20) lifts up by a restoring force of an elastic member (50) so that an upper side surface extension piece (33) of a pump inner body (30) together moves up, thereby unfolding a folded corrugate tube (31), so a volume of a content temporary reservoir (TR) is increased so that a vacuum pressure is generated in the content temporary reservoir (TR) and a content outlet (23) is closed by a valve protrusion wheel (41) of the discharge valve (40), wherein a content inlet (12) of a pump main body (10) is opened while a valve plate (71) of an absorbing valve plate (70) lifts up due to the vacuum pressure, so that contents in the container (V) are transferred into the content temporary reservoir (TR), and wherein, when the vacuum pressure of the content temporary reservoir (TR) is removed as the contents are transferred into the content temporary reservoir (TR), the valve plate (71) is restored to an original state thereof due to elasticity of an elastic piece (73), wherein the dispensing valve (40) is positioned on a top surface of the pump upper body (20), wherein the pump inner body (30) comprises: a pump upper body coupling piece (32) having a substantially cylindrical shape on an upper portion of the pump inner body (30); and an upper side surface extension piece (33) extending from an outer side of an upper end of the pump upper body coupling piece (32), wherein the corrugate tube (31) formed below a side surface of the pump inner body (30) to be inwardly folded while the elastic member (50) is compressed, and having a lower side surface extension piece (34) integrally formed at an outside of a lower end thereof, wherein the elastic member (50) is installed from the upper side surface extension piece (33) to the lower side surface extension piece (34), wherein the pump inner body (30) is made of an elastic material, and wherein a horizontal distance of the pump inner body (30) is greater than a height of the pump inner body (30).

4. A contents dispensing pump coupled to a container (V) for containing contents therein to dispense the contents, the contents dispensing pump comprising: a pump upper body (20) coupled to an upper portion of a pump main body (10) to move vertically with respect to the pump main body (10) and provided with a dispensing protrusion rod (24) having a content outlet (23); and a dispensing valve (40) provided with a valve protrusion wheel (41) for opening or closing the content outlet (23), having a coupling protrusion wheel (42) which surrounds the dispensing protrusion rod (24), wherein a pump inner body (30) having an absorbing valve plate (70) is coupled to an inside of a pump main body (10), wherein the pump inner body (30) comprises: a corrugate tube (31) formed below a side surface of the pump inner body (30) to be inwardly folded while the elastic member (50) is compressed, and having a lower side surface extension piece (34) integrally formed at an outside of a lower end thereof; a pump upper body coupling piece (32) having a substantially cylindrical shape on an upper portion of the pump inner body (30); and an upper side surface extension piece (33) extending from an outer side of an upper end of the pump upper body coupling piece (32), wherein the pump upper body coupling piece (32) and the upper side surface extension piece (33) of the pump inner body (30) are coupled to be interposed between first and second coupling extension pieces (28 and 29) of a pump upper body (20), wherein the first coupling extension piece (28) of the pump upper body (20) is coupled to make contact with an upper portion of a horizontal connection piece (35) of the pump inner body (30) such that the first coupling extension piece (28) is pressed, wherein a valve protrusion wheel (41) of the discharge valve (40) is coupled to be covered by a dispensing protrusion rod (24) of the pump upper body (20), and wherein a coupling protrusion wheel (42) of the dispensing valve (40) is coupled to a dispensing valve coupling space (22) of the pump upper body (20), wherein the dispensing valve (40) is positioned on a top surface of the pump upper body (20), wherein the elastic member (50) is installed from the upper side surface extension piece (33) to the lower side surface extension piece (34), wherein the pump inner body (30) is made of an elastic material, and wherein a horizontal distance of the pump inner body (30) is greater than a height of the pump inner body (30).

5. The contents dispensing pump of claim 1, wherein an inlet ring-type protrusion part (13) is formed on an outer side of the content inlet (12) of the pump main body (10).

6. The contents dispensing pump of claim 1, wherein the pump upper body (20) is provided on a central part of an upper body upper plate (21) thereof with a concaved dispensing valve coupling space (22).

7. The contents dispensing pump of claim 6, wherein the dispensing valve coupling space (22) is provided at a central portion thereof with the dispensing protrusion rod (24).

8. The contents dispensing pump of claim 6, further comprising protrusion pieces (25-1) formed on a side surface and a bottom surface of the dispensing valve coupling space (22) such that a path (46), which allows contents to flow through a space between the protrusion pieces (25-1), is formed.

9. The contents dispensing pump of claim 1, wherein the pump upper body (20) includes a first coupling extension piece (28) which is formed below an upper body upper plate (21) and is coupled to the pump inner body (30).

10. The contents dispensing pump of claim 1, wherein the pump upper body (20) further comprises a tension bar (21-1) extending from the upper body upper plate (21).

11. The contents dispensing pump of claim 1, further comprising the absorbing valve plate (70) formed on a bottom surface of the pump inner body (30).

12. The contents dispensing pump of claim 1, wherein an upper end of the pump upper body coupling piece (32) and an upper end of the corrugate tube (31) are integrally connected to the horizontal connection piece (35).

13. The contents dispensing pump of claim 12, wherein the horizontal connection piece (35) is formed to press a lower end of the first coupling extension piece (28) of the pump upper body (20).

14. The contents dispensing pump of claim 1, wherein the corrugate tube (31) is formed to be inwardly folded.

15. The contents dispensing pump of claim 1, wherein the pump inner body (30) includes at least one of general rubber, elastomer, silicon rubber, NBR rubber, and synthetic resin having excellent elasticity and including polyethylene (PE) and polypropylene (PP).

16. The contents dispensing pump of claim 1, wherein the dispensing valve (40) is coupled to an upper side of the pump upper body (20) and comprises a valve protrusion wheel (41) for opening or closing the content outlet (23) of the pump upper body (20).

17. The contents dispensing pump of claim 1, wherein the contents dispensing pump is used for a cosmetic cream container, a lotion container, a compact container, a daily supply container, a food container or a medicine container.

Description

DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a view illustrating an exemplary state that a contents dispensing pump is operated to dispense contents according to the related art.

(2) FIG. 2 is a view illustrating an exemplary state that a contents dispensing pump is restored to an original state when force is removed from the contents dispensing pump according to the related art.

(3) FIG. 3 is an assembled sectional view of a contents dispensing pump according to another example of the related art.

(4) FIG. 4 is a plan view showing a valve plate of a contents dispensing pump according to still another example of the related art.

(5) FIG. 5 is a sectional view showing an operating state of opening/closing lines of a valve plate applied to a contents dispensing pump according to still another example of the related art.

(6) FIG. 6 is an assembled perspective view of a contents dispensing pump according to still another example of the related art.

(7) FIG. 7 is an exploded perspective view of a contents dispensing pump according to still another example of the related art.

(8) FIG. 8 is an assembled sectional view of a contents dispensing pump according to still another example of the related art.

(9) FIG. 9 is an assembled perspective view of a contents dispensing pump according to still another example of the related art.

(10) FIG. 10 is an exploded perspective view of a contents dispensing pump according to an embodiment of the present invention.

(11) FIG. 11 is an assembled sectional view of a contents dispensing pump according to an embodiment of the present invention.

(12) FIG. 12 is a plan view of a pump inner body applied to the present invention.

(13) FIG. 13 is a sectional view taken along line A-A.

(14) FIGS. 14 to 17 are plan views showing other examples of the pump inner body applied to the present invention.

(15) FIG. 18 is a sectional view showing an operating state of opening/closing lines of the pump inner bodies of FIGS. 14 to 17.

(16) FIG. 19 is a bottom view of a dispensing valve applied to the present invention.

(17) FIG. 20 is a sectional view showing a state that a contents dispensing pump is operated to discharge contents according to an embodiment of the present invention.

(18) FIG. 21 is a sectional view showing a state that a contents dispensing pump is restored to an original state by removing force from the contents dispensing pump according to an embodiment of the present invention.

(19) FIG. 22 is a sectional view entirely showing a state that a contents dispensing pump is applied to a cosmetic cream container according to an embodiment of the present invention.

(20) FIG. 23 is a sectional view entirely stowing a state that a contents dispensing pump is applied to a lotion container according to an embodiment of the present invention.

(21) FIG. 24 is a sectional view entirely showing a state that a contents dispensing pump is applied to a compact container according to an embodiment of the present invention.

BEST MODE

Mode for Invention

(22) It should be understood that the terms used in the specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation.

(23) FIG. 9 is an assembled perspective view of a contents dispensing pump according to still another example of the related art. FIG. 10 is an exploded perspective view of a contents dispensing pump according to an embodiment of the present invention. FIG. 11 is an assembled sectional view of a contents dispensing pump according to an embodiment of the present invention. FIG. 12 is a plan view of a pump inner body applied to the present invention. FIG. 13 is a sectional view taken along line A-A. FIGS. 14 to 17 are plan views showing other examples of the pump inner body applied to the present invention. FIG. 13 is a sectional view showing an operating state of opening/closing lines of the pump inner bodies of FIGS. 14 to 17. FIG. 19 is a bottom view of a dispensing valve applied to the present invention.

(24) Hereinafter an embodiment of the present invention will be described with reference to accompanying drawings.

(25) As shown in FIGS. 6 to 9, a pump for discharging contents according to an embodiment of the present invention is coupled to a container V for containing the contents and includes a pump main body 10, a pump upper body 20, a pump inner body 30, a dispensing valve 40 and an elastic member 50.

(26) The pump main body 10 has a bowl shape with the middle thereof formed to be dented so that a contents inlet 12 is formed in the center of a main body lower plate 11 and an inlet ring-type protrusion part 13 is formed on the outer side of the content inlet 12. The inlet ring-type protrusion part 13 is provided to enhance the air-tightness of a suction valve plate 70.

(27) A pump inner body latching sill 14 is formed in the inner side surface so as to be coupled to the pump inner body 30. The pump inner body latching sill 14 is formed in a protrusion wheel or protrusion shape and undercut coupled to a lower side surface extension piece 34.

(28) In addition, a main body extension piece 16 is further formed on an outer upper end of the pump main body 10. A pump upper body latching protrusion wheel 15 may be provided on an end of the main body extension piece is to prevent the pump upper body 20 from being separated.

(29) The pump upper body 20 is coupled to an upper portion of the pump main body 10 such that the pump upper body 20 moves up or down with respect to the pump main body 10, thereby performing a pumping operation. The pump upper body 20 is provided on a central part of an upper body upper plate 21 with a concaved dispensing valve coupling space 22. A dispensing protrusion rod 24 having a content outlet 23 is formed in the center of the dispensing valve coupling space 22.

(30) The upper body upper plate 21 may be flat. Although a sealing piece 44 protrudes to form a protrusion 21-3, there is no difference in the pumping work. When the protrusion 21-3 is formed, the dispensed contents may easily flow out to an outside while passing through the protrusion 21-3.

(31) A content induction rod (24-1) having a streamlined surface may be formed on an inner lower portion of the dispensing protrusion rod (24) such that the contents in the content temporary reservoir TR may smoothly transfer when the contents are dispensed.

(32) A dispensing valve coupling sill 25, to which the dispensing valve 40 is coupled, is provided on a side wall surface of the dispensing valve coupling space 22. In addition, protrusion pieces 25-1 are formed on a side surface and a bottom surface of the dispensing valve coupling space 22 such that a path 46 which allows contents to flow through a space between the protrusion pieces 25-1 is formed.

(33) In addition, a first coupling extension piece 28 which is formed below an upper body upper plate 21 and is coupled to the pump inner body 30, and a second coupling extension piece 29 which is spaced apart from the first coupling extension piece 28 by a predetermined interval and formed at an outer side than the first coupling extension piece 28 are formed such that a pump upper body coupling piece 32 and an upper side surface extension piece 33 of the pump inner body 30 are interposed between the first and second coupling extension pieces 28 and 29.

(34) In addition, an upper extension piece 26 is formed below an outer end of the pump upper body 20 and a pump main body latching protrusion wheel 27 is formed on an inner end of the upper body extension piece 26 to latch the pump tipper body 20 to the pump upper latching protrusion 15 of the pump main body 10. As shown in FIG. 24, the upper body upper plate 21 may extend to form a tension bar 21-1. A main body fixing protrusion 21-2 may be formed on an end of the tension bar 21-1 to undercut couple the main body fixing protrusion 21-2 to the pump upper body fixing protrusion 17 of the pump main body 10, such that the pump upper body 20 is fixed to the pump main body 10.

(35) The pump inner body 30 has a bowl shape with the middle thereof formed to be dented. A suction valve plate 70 is integrally formed on a bottom surface of the pump inner body 30 and a corrugate tube 31 is formed below a side surface of the pump inner body 30. A pump upper body coupling piece 32 coupled to the pump upper body 20 is formed on an upper portion of the pump inner body 30.

(36) An upper side surface extension piece 33 extends from at an outside of an upper end of the pump upper body coupling piece 32 so that the upper side surface extension piece 33 is integrally formed at the outside of the upper end of the pump upper body coupling piece 32. A lower side surface extension piece 34 extends from an outside of a lower end of the corrugate tube 31 so that the lower side surface extension piece 34 is integrally formed at the outside of the lower end of the corrugate tube 31. A lower end of the pump upper body coupling piece 32 and an upper end of the corrugate tube 31 are integrally connected to the horizontal connection piece 35 such that a lower end of the first coupling extension piece 28 of the pump upper body 20 is pressed.

(37) The upper side surface extension piece 33 of the pump inner body 30 is interposed between the first and second coupling extension pieces 28 and 29 of the pump upper body 20. The lower side surface extension piece 34 is interposed between the main body lower plate 11 of the pump main body 10 and the pump inner body latching sill 14.

(38) An elastic member 50 is installed between the upper and lower side surface extension pieces 33 and 34 of the pump inner body 30 such that the upper and lower side surface extension pieces 33 and 34 are spaced apart from each other to tensely stretch the pump inner body 30.

(39) In addition, the corrugate tube 31 is inwardly convex to be folded inwardly. The horizontal connection piece 35 on an upper end of the corrugate tube 31 is formed to be pressed by the first coupling extension piece (28) of the pump upper body (20). Thus, when the pump upper body 20 is pressed, the pump upper body coupling piece 32 interposed between the first and second coupling extension pieces 28 and 29 is pressed while the elastic member 50 is pressed. In addition, while the horizontal connection piece 35 is pressed by the end of the first coupling extension piece 28, the corrugate tube 31 is folded inwardly of the content temporary reservoir TR so that the volume of the content temporary reservoir TR is reduced to dispense the contents.

(40) Since the pump inner body 31 having the corrugate tube 31 is repeatedly folded and unfolded, the pump inner body 31 is required to be formed of a material having excellent elasticity. Thus, the pump inner body 31 is preferably formed of at least one of general rubber, elastomer, silicon rubber, NBR rubber, and synthetic resin having excellent elasticity and including polyethylene (PE) and polypropylene (PP).

(41) The suction valve plate 70 constituting the bottom surface of the pump inner body 30 is provided at the center thereof with a valve plate 71 which covers the content inlet 12 of the pump main body 10. When a pressure is generated in the content temporary reservoir TR, the valve plate 71 is pressed downward due to the pushing pressure, thereby closing the content inlet 12. When a vacuum pressure is generated, the valve plate 71 lifts up due to the suction pressure, so that the contents inlet 12 is opened. The valve plate 71 makes surface contact with the periphery surface of the content inlet 12 so that valve plate 71 may open or close the content inlet 12.

(42) As well as the valve plate 71, a valve plate ring-type protrusion 72 may be formed to make contact with the inlet ring-type protrusion part 13 of the pump main body 10 while crossing the inlet ring-type protrusion part 13. Since the valve plate ring-type protrusion 72 opens or closes the content inlet 12 while making line contact with the inlet ring-type protrusion part 13, the opening/closing ability may be more improved.

(43) In addition, as shown in FIG. 12, an outer side surface of the valve plate 71 and an inner lower end of the pump inner body 30 are integrally formed through an elastic piece 73. The valve plate 71 and the valve plate ring-type protrusion 72 are downward pressed by the elastic piece 73, so that the valve plate 71 and the valve plate ring-type protrusion 72 are in contact with the pump main body 10 all the time, thereby closing the content inlet 12.

(44) In addition, according to another example of the pump inner body applied to the present invention, as shown in FIGS. 14 to 17, a suction valve plate 70 having a different shape from that of the previous example thereof may be used.

(45) Although the suction valve plate 70 according to the present invention is provided on a periphery thereof with the elastic piece 73, as shown in FIGS. 14 to 17, several opening/closing lines 74 are formed at a periphery of the valve plate 71, so that an elastic plate 75 may be formed between the opening/closing lines 74.

(46) The opening/closing line 74 may include an arc shaped cutting line shown in FIG. 14, a broken line shaped cutting line as shown in FIG. 15, a diagonal shape cutting line shown in FIG. 16 or a straight line shaped cutting line shown in FIG. 17, but the shape of the opening/closing line 74 is not limited to a specific shape of the cutting line. If the elastic plate 75 is opened or closed by the elasticity of the elastic plate 75, any shapes may be applied to the elastic plate 75.

(47) When the dispensing pressure is generated in the temporary reservoir TR by pushing the pump tipper body 20, since the opening/closing line 74 is tightly closed to the inlet ring-type protrusion part 13 of the pump main body 10, the boundary line of the opening/closing line 74 is closed. However, when the pressure on the pump upper body 20 is removed so that a vacuum pressure is generated in the temporary reservoir TR while the elastic member 50 moves up, as shown in FIG. 18, the valve plate 71 of the suction valve plate 40 is raised upward to allow the gap of the opening/closing line to be widened, so that the contents are transferred from the container V to the temporary repository TR through the gap of the opening/closing line 74.

(48) The dispensing valve 40 is coupled to an upper side of the pump upper body 20 and is provided with a valve protrusion wheel 41 for opening or closing the content outlet 23 of the pump upper body 20. The dispensing valve (40) is provided at an outside of the valve protrusion wheel 41 with a coupling protrusion wheel 42 coupled to the pump upper body 20. A space unit 43 which is formed between the valve protrusion wheel 41 and the coupling protrusion wheel 42 and enables the valve protrusion wheel 41 to move when the valve protrusion wheel 41 is turned on or off.

(49) The valve protrusion wheel 41 is provided on an inner side surface of the valve protrusion wheel 41 with a groove 47 and on an inner periphery of a lower end the valve protrusion wheel 41 with a sealing protrusion wheel 48. The sealing protrusion wheel 48 is tightly closed to the dispensing protrusion rod 24 of the pump upper body 20 to seal the content outlet 23. In addition, the sealing protrusion wheel 48 is tightly closed to a lower portion of the content outlet 23 of the dispensing protrusion rod 24 to enhance the air-tightness of the content outlet 23.

(50) The dispensing valve 40 is integrally formed on an outer end thereof with a sealing piece 44 which makes contact with an upper body upper plate 21 of the pump upper body 20 or a protrusion 21-3 and is lifted up while being pushed by dispensing pressure when contents are discharged.

(51) The dispensing valve 40 may be directly coupled with a dispensing valve coupling sill 25 of the pump upper body 20 by a coupling protrusion wheel 42, or a coupling auxiliary member may be fitted to an outer surface of the coupling protrusion wheel 42 such that the dispensing valve 40 can be coupled with the dispensing valve coupling sill 25 through the coupling auxiliary member 60.

(52) In the case that the coupling auxiliary member 60 is fitted to the coupling protrusion wheel 42 of the dispensing valve 40, a fitting groove 45 is formed at an outer surface of the coupling protrusion wheel 42 and a fitting protrusion wheel 61 is formed at an inner surface of the coupling auxiliary member 60 in such a manner that the fitting protrusion wheel 61 can be fitted into the fitting groove 45.

(53) When the dispensing valve 40 is coupled to the pump upper body 20, the coupling auxiliary member 60 is used as a coupling auxiliary unit. The coupling auxiliary member 60 is formed in a cylindrical shape. A fitting protrusion 61 coupled to the fitting groove 45 of the dispensing valve 40 is formed on an inner side surface of the coupling auxiliary member 60. A pump upper body coupling sill 62 coupled to the dispensing valve coupling sill 25 of the pump upper body 20 is formed on an outer side surface of the coupling auxiliary member 60.

(54) After the fitting protrusion wheel 61 of the coupling auxiliary member 60 is fitted into the fitting groove 45 of the dispensing valve 40 such that the coupling auxiliary member 60 is coupled to the dispensing valve 40, the pump upper body coupling sill 62 of the coupling auxiliary member 60 is pressed to be undercut coupled to the dispensing valve coupling sill 25 such that the dispensing valve 40 and the pump upper body 20 are coupled to each other.

(55) Although it is described in the embodiment that the coupling auxiliary member 60 is undercut coupled to the pump upper body 20, the embodiment is not limited thereto and it is possible that the coupling auxiliary member 60 is forcibly and fittingly coupled to the pump upper body 20.

(56) When the dispensing valve 40 is coupled to the pump upper body 20, a path 46 through which contents are dispensed may be formed between the protrusion pieces 25-1 in the dispensing valve coupling space 22 of the dispensing valve 40 and the pump upper body 20.

(57) The dispensing valve 40 is required to be formed of a material having excellent elasticity. Thus, the dispensing valve 40 is preferably formed of at least one of general rubber, elastomer, silicon rubber, NBR rubber, and synthetic resin having excellent elasticity and including polyethylene (PE) and polypropylene (PP).

(58) The elastic member (50) is positioned between the upper lateral surface extension piece (33) and the lower lateral surface extension piece (34) of the pump inner body (30) so as to draw the pump inner body (30) and simultaneously elastically support the pump main body (10) and the pump upper body (20).

(59) The elastic member 50 may be one of a synthetic resin, an elastomer, a rubber material and a metallic material. Since the elastic member 50 is positioned at an outer portion, of a pump inner body 30, the elastic member 50 does not directly make contact with the contents so that the contamination of contents caused by the chemical change can be prevented and durability can be improved.

(60) Hereinafter, a method of assembling the contents dispensing pump having the above configuration according to the present invention will be described.

(61) First, the pump inner body 30 is disposed inside the pump main body 10 and the lower side surface extension piece 34 of the pump inner body 30 is latched with the pump inner body latching sill 14 of the pump main body 10 through an undercut scheme, thereby fixing the pump inner body 30 to the pump main body 10.

(62) Then, the elastic member 50 is fitted between the lower side surface extension piece 34 and the upper side surface extension piece 33 of the pump inner body 30, and the pump upper body coupling piece 32 and the upper side surface extension piece 33 of the pump inner body 30 are interposed between the first and second coupling extension pieces 28 and 29 of the pump upper body 20 such that the first coupling extension piece 28 of the pump upper body 20 presses the horizontal connection piece 35 of the pump inner body 30 while making contact with an upper surface of the horizontal connection piece 35.

(63) After that, the pump upper body 20 is pressed such that the pump main body latching protrusion wheel 27 of the upper body extension piece 26 of the pump upper body 20 can be latched while crossing over the pump upper latching protrusion wheel 15 of the pump main body 10, thereby coupling the pump upper body 20 to the pump main body 10.

(64) At this time, as shown in FIG. 24, in the case that the contents dispensing pump of the present invention is applied to the compact, the main body fixing protrusion 21-2 formed at the end of the tension bar 21-1 of the pump upper body 20 is coupled to the pump upper body fixing protrusion 17 of the main body extension piece 26 of the pump main body 10 through the undercut scheme, thereby fixing the pump upper body 20 to the pump main body 10.

(65) Then, the valve protrusion wheel 41 of the dispensing valve 40 is capped on the dispensing protrusion rod 24 of the pump upper body 20, and simultaneously, the coupling protrusion wheel 42 of the dispensing valve 40 is press-fitted by directly pressing the coupling protrusion wheel 42 against the dispensing valve coupling space 22 of the pump upper body 20 or the coupling protrusion wheel 42 is coupled to the dispensing valve coupling sill 25 through the undercut scheme, thereby coupling the dispensing valve 40 to the pump upper body 20, otherwise, the dispensing valve 40 may be coupled to the pump upper body 20 by using the coupling auxiliary member 60.

(66) When using the coupling auxiliary member 60, the fitting protrusion wheel 61 of the coupling auxiliary member 60 is fitted to the fitting groove 45 of the coupling protrusion wheel 42 of the dispensing valve 40 in order to couple the coupling auxiliary member 60 to the dispensing valve 40, and the coupling protrusion wheel 42 coupled with the coupling protrusion wheel 42 is press-fitted into the dispensing valve coupling space 22 of the pump upper body 20.

(67) In this case, the valve protrusion wheel 41 of the dispensing valve 40 is capped on the dispensing protrusion rod 24 of the pump upper body 20, and simultaneously, the coupling auxiliary member 60 is press-fitted into the dispensing valve coupling space 22, otherwise, the pump upper body coupling sill 62 of the coupling auxiliary member 60 is coupled to the dispensing valve coupling sill 25 through the undercut scheme.

(68) The contents dispensing valve assembled as described above according to the present invention can be fitted with the container V in use. For instance, the contents dispensing valve can be coupled with the cosmetic cream container, as shown in FIG. 22, can be coupled with the lotion container as shown in FIG. 23, or can be coupled with the compact container as shown in FIG. 24.

(69) Hereinafter, the operation of the contents dispensing pump having the above configuration according to the present invention will be described.

(70) The contents dispensing pump according to the present invention is coupled with the contents container V in use. For instance, the contents dispensing pump can be used for a normal cosmetic container, a daily supply container, a food container or a medicine container and can be applied to a packaging container such as a compact cosmetic container having a height smaller than a width thereof.

(71) In the contents dispensing valve having the above configuration according to one embodiment of the present invention, when an tipper surface of the pump upper body 20 or the dispensing valve 40 is pushed to allow the pump upper body 20 to move down with respect to the pump main body 10, the elastic member 50 is compressed and the corrugate tube 31 is folded so that the volume of the content temporary repository TR is reduced. Thus, discharge pressure is generated in the content temporary repository TR so that the contents in the content temporary repository TR may be discharged to the content outlet 23. Accordingly, the valve protrusion wheel 41 adhering to the content outlet 23 is open caused by the discharge pressure so that the contents pass through a gap between the content outlet 23 and the valve protrusion wheel 41. Then, the contents pass through the path 46 formed between the pump upper body 20 and the dispensing valve 40. After that, the discharge pressure is applied to the sealing piece 44 formed at the upper peripheral portion of the dispensing valve 44 so that the sealing piece 44 is pulled inward and open, thereby allowing the contents to be discharged through a gap created by the sealing piece 44.

(72) At this time, the inlet valve plate 70 is pushed down by the discharge pressure of the content temporary repository TR, so that the valve plate ring-type protrusion 72 presses the inlet ring-type protrusion 13 of the pump main body 10, thereby closing the content inlet 12.

(73) In addition, as shown in FIG. 24, in the case that the contents dispensing pump according to the present invention is applied to the compact container, if the pump upper body 20 is moved down with respect to the pump main body 10 by pushing the top surface of the pump upper body 20 or the dispensing valve 40, the elastic member 50 is compressed so that the contents in the pump inner body 30 are discharged, and simultaneously, since the end of the tension bar 21-1 is fixed to the main body extension piece 16 of the pump main body 10, the tension bar 21-1 is bent while being subject to the elastic force, so that the pump upper body 20 moves down.

(74) In addition, when the pressure on the upper surface of the dispensing valve 40 or the pump upper body 20 is removed, while the pump upper body 20 moves up by restoring force of an elastic member 50, the upper side surface extension piece extension 33 moves up together so that the corrugate tube 31 is unfolded. Thus, since the volume of the content temporary repository TR is increased, the vacuum pressure in the content temporary repository TR is generated so that the valve protrusion wheel 41 of the dispensing valve 40 closes the content outlet 23. When the valve plate 71 of the suction valve plate 70 is raised upward due to the vacuum pressure, while the valve plate ring-type protrusion 72 is spaced apart from the inlet ring-type protrusion part 13, the content inlet 12 is opened so that the contents in the container V are transferred to the content temporary repository TR.

(75) As shown in FIG. 12, in case that the pump inner body 30 according to one embodiment of the present invention is used, when contents transfer from the container V to the content temporary reservoir TR, the valve plats 71 lifts up while the elastic piece 73 of the suction valve plate 70 is elastically deformed, when the contents flow into the content temporary reservoir TR so that the vacuum pressure is removed, the valve plate 71 is closed on the content inlet 12 again due to the elastic force of the elastic piece 73 of the suction valve plate 70.

(76) In addition, as shown in FIGS. 14 to 27, in case that the pump inner body 30 according to another embodiment of the present invention is used, when contents transfer from the container V to the content temporary reservoir TR, as shown in FIG. 18, while the valve plate 71 of the suction valve plate 70 lifts up, the elastic piece 73 of the suction valve plate 70 is elastically deformed so that the opening/closing line 41 is widened, so the contents flow from the container V into the content temporary reservoir TR through the gap of the opening/closing line 41. As the contents flow from the container V into the content temporary reservoir TR, when the vacuum pressure is removed, the valve plate 71 is closed on the content inlet 12 again due to the elastic force of the elastic plate 75 of the suction valve plate 70.

(77) As described above, the contents dispensing pump described in this disclosure is an illustrative purpose only, and the present invention is not limited thereto. Thus, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art within the spirit and scope of the present invention and they will fall within the scope of the present invention.

DESCRIPTION OF REFERENCE NUMERAL

(78) 10: Pump main body

(79) 11: Pump lower plate

(80) 12: Content inlet

(81) 13: Inlet ring-type protrusion part

(82) 14: Pump inner body latching sill

(83) 15: Pump upper body latching protrusion wheel

(84) 20: Pump upper body

(85) 21: Upper body upper plate

(86) 22: Dispensing valve coupling space

(87) 23: Content outlet

(88) 24: Dispensing protrusion rod

(89) 24-1: Content induction rod

(90) 25: Dispensing valve coupling sill

(91) 26: Upper body extension piece

(92) 27: Pump main body latching protrusion wheel

(93) 28: First coupling extension piece

(94) 29: Second coupling extension piece

(95) 30: Pump inner body

(96) 31: Corrugate tube

(97) 32: Pump upper body coupling piece

(98) 33: Upper side surface extension piece

(99) 34: Lower side surface extension piece

(100) 35: Horizontal extension piece

(101) 40: Dispensing valve

(102) 41: Valve protrusion wheel

(103) 42: Coupling protrusion wheel

(104) 43: Space part

(105) 44: Sealing piece

(106) 45: Fitting groove

(107) 46: Path

(108) 50: Elastic member

(109) 60: Coupling auxiliary member

(110) 61: Fitting protrusion wheel

(111) 62: Pump upper body coupling sill

(112) 70: Suction valve plate

(113) 71: Valve plate

(114) 72: Valve plate ring-type protrusion

(115) 73: Elastic piece