HOSE ENDING, MAINLY AS CONNECTING ELEMENT

Abstract

Hose has a body (3) and a mouthpiece (1) connected with the body (3). The mouthpiece (1) is slidably placed against the body (3); it is designed for mounting of the end of the hose and it has a thickening (2). The ending has a circumferential stop (4) placed in the axis of the mouthpiece (1), whereby the stop (4) has on its circumference a touch surface which is oriented inside, against the thickening (2) on the mouthpiece (1). The mouthpiece (1) can be sealed by sealing ring (7) against the body (3), whereby the ring (7) is placed in the sealing zone (9), or the mouthpiece (1) can be connected with the body (3) by a flexible bellow. During the movement of the mouthpiece (1) outside the touch surface of the stop (4) and the outer surface of the hose in the zone with the thickening (2) draw closer and the hose is held on the mouthpiece (1) by the underpressure between the surface of the stop (4) and the thickening (2). The increasing pressure in the hose increases the underpressure of the hose on the mouthpiece (1 ) which increases the sealing effect of the joint.

Claims

1. An ending for a hose comprising: a body (3); and a mouthpiece (1) connected with the body (3); the mouthpiece (1) is designed that an end of the hose can be pushed onto it, and the mouthpiece (1) has a thickening (2) on its outer end designed for holding of the hose on the mouthpiece (1); whereby the ending has a circumferential stop (4) with an opening for the hose placed in an axis of the mouthpiece (1); the mouthpiece (1) has a waist (8) for a pulling on of the hose and the waist (8) follows upon the thickening (2), wherein: the mouthpiece (1) is slidably placed inside the body (3) in order to achieve a movement freedom of the mouthpiece (1) towards the stop (4); the stop (4) is connected with the body (3), whereby the stop (4) has a touch surface on its circumference, whereby the touch surface is oriented inside, against the thickening (2) on the mouthpiece (1); and an outer diameter of the thickening (2) is larger than an inner diameter of the stop (4); or a difference between the outer diameter of the thickening (2) and the inner diameter of the stop (4) is less than twice the thickness of a wall of the hose, hose for which the ending is intended.

2. The ending for the hose according to claim 1, wherein the mouthpiece as a sealing zone (9) which is designed for slidable connection with an inner surface of the body (3), and the slidable connection includes a sealing ring (7).

3. The ending for the hose according to claim 1, wherein the mouthpiece (1) is connected with the body (3) by means of a flexible bellow.

4. The ending for the hose according to claim 2, wherein the sealing zone (9) and the thickening (2) have the outer diameter that is identical to or smaller than the inner diameter of the opening in the stop (4) and the mouthpiece (1) is designed for an insertion into the body (3) through the opening in the stop (4).

5. The ending for the hose according to claim 4, wherein a cavity in the body (3) has a mount as the stop (4) for a front surface of the mouthpiece (1).

6. The ending for the hose according to claim 2, wherein the sealing zone (9) has the outer diameter that outer diameter that is larger than the inner diameter of the opening in the stop (4) and the mouthpiece (1) is designed for the insertion of the body (3) from a side that is opposite to the stop (4).

7. The ending for the hose according to claim 6, wherein the sealing zone (9) includes a disc with a groove into which the sealing ring (7) is inserted, whereby the disc follows upon the waist (8) of the mouthpiece (1).

8. The ending for the hose according to claim 6, wherein the thickening (2) has the outer diameter that is larger than the outer diameter of the opening in the stop (4).

9. The ending for the hose according to the claim 6, wherein the body (3) has an inner thread with a diameter larger than the outer diameter of the sealing zone (9) on a side opposite to the stop, and the body (3) has a flat sealing (10) for sealing of a connection of the ending with a connected element; whereby the sealing (10) leans onto the mount in the body (3) by an end of the inner thread.

10. The ending for the hose according to claim 1, the mouthpiece (1) is placed in the cylindrical cavity of the body (3), whereby the axis of the mouthpiece (1), the axis of the body (3) and the axis of the stop (4) with the opening are identical.

11. The ending for the hose according to claim 1, wherein the stop (4) is connected with the body (3) by a circumferential wall; the circumferential wall produces the cavity inside which the mouthpiece (1) is placed, whereby there is a gap with a dimension at least identical to the thickness of the wall of the hose between the circumferential wall and the mouthpiece (1).

12. The ending for the hose according to claim 11, wherein the circumferential wall is a continuation of the cylindrical body (3).

13. The ending for the hose according to claim 11, wherein the circumferential wall has an inner conical surface for leading of the hose and an inner conical surface for a delimitation of a movement of the sealing ring (7).

14. The ending for the hose according to a claim 1, wherein the opening in the circumferential stop (4) includes a cone oriented outside for purposes of the leading of the hose into the body (3).

15. The ending for the hose according to claim 1, wherein the opening in the circumferential stop (4) has the groove with the ring in order to seal the hose against the body (3).

16. The ending for the hose, according to claim 1, wherein the stop (4) is connected with the body (3) by means of at least two, preferably three draw rods.

17. The ending for the hose according to claim 1, wherein the stop (4) has an inner conical surface (6) and the mouthpiece (1) has on the thickening (2) an outer conical surface (5); preferable both conical surfaces (5, 6) have a same angle.

18. The ending for the hose according to claim 1, wherein the mouthpiece (1) has a cylindrical or elliptical or flattened cross-section, or rectangular or polygonal cross-section with rounded corners.

19. The ending for the hose according to claim 1, wherein the body (3) is part of a piping system.

20. The ending for the hose according to claim 1, wherein the body (3) is plastic and wherein the mouthpiece (1) is plastic or metal.

21. (canceled)

Description

DESCRIPTION OF DRAWINGS

[0031] The technical solution is further disclosed by means of the drawings 1 to 8. The used scale of the depiction and ratio of sizes of individual elements, for example, ratio of sizes of the mouthpiece and the body of the ending, does not have to correspond to the description in the examples and these scales and ratios of sizes cannot be interpreted as limiting the scope of protection.

[0032] FIGS. 1 to 4 depict the ending in the first group of realizations, where the mouthpiece is inserted to the body through the opening in the circumferential stop.

[0033] FIG. 1 is a view of the ending during the insertion of the hose to the opening of the ending, where the hose is directed onto the mouthpiece. The arrow denotes a direction of pushing of the hose onto the mouthpiece.

[0034] FIG. 2 depicts the pushing of the hose onto the mouthpiece, which is leaned onto the stop in the opening of the body.

[0035] FIG. 3 is a view of the working surface of the connection of the ending and the hose, where the hose is gripped between the stop and the thickening of the mouthpiece. The arrow denotes a direction of the force by which the mouthpiece with the hose are pressed against the circumferential stop.

[0036] FIG. 4 depicts individual parts of the mouthpiece, where the waist gradually passes to the sealing zone.

[0037] FIG. 5 depicts a solution where the mouthpiece is connected with the body of the ending by means of flexible bellows. The fold of the bellows is enlarged for the purposes of clarity; in reality the bellows can have different shape and size.

[0038] FIGS. 6 to 8 depict the ending from the second group of realizations, where the mouthpiece is pressed into the body from the opposite side than where the body has a circumferential stop with the opening for the hose.

[0039] FIG. 6 depicts a hose during the pulling of the hose onto the mouthpiece. The arrow shows a direction of the movement of the mouthpiece inside the hose.

[0040] FIG. 7 depicts an ending with the mounted hose in the active position.

[0041] FIG. 8 depicts individual parts of the mouthpiece from the second group of the realizations; the sealing zone of the mouthpiece has an outer diameter larger than the waist and thickening.

EXAMPLES OF REALIZATION OF TECHNICAL SOLUTION

Example 1

[0042] In this example according to FIGS. 1 to 4 the ending is connected with the hose for the distribution of water. The ending has a body 3 produced from plastic, which is designed for connection with the armature. The ending has a stop 4 with the inner conical surface 6 which is oriented against the conical surface 5 on the mouthpiece 1. The mouthpiece 1 is placed in the cavity of the ending; it is slidably led in the body 3 and it is sealed against the body 3 by means of the sealing ring 7. On the mouthpiece 1 there is a thickening 2. The mouthpiece 1 proceeds further by the waist 8 with the diameter which corresponds to the inner diameter of the hose. The sealing zone 9 follows upon the waist 8. The mouthpiece 1 in this example of realization is inserted inside the body 3 through the opening in the circumferential stop 4. The outer diameter of the thickening 2 is smaller than the inner diameter of the opening in the circumferential stop 4 and at the same time the difference between the diameter of the stop 4 and the outer diameter of the thickening 2 is less than twice the thickness of the wall of the hose.

[0043] The hose is inserted into the opening in the ending and pushed onto the mouthpiece 1 by pressure. Thereby the mouthpiece 1 is pushed into the body 3. The subsequent pulling of the hose or the effect of the overpressure of the medium inside the hose causes a movement of the mouthpiece 1 with the mounted hose outside the body 3. The hose, deformed in the zone thickening 2, has a diameter that is larger than the opening in the stop 4 and the pushing out of the mouthpiece 1 from the body 3 is stopped at the stop 4. The conical surface 6 on the stop 4 and the conical surface 5 on the mouthpiece 1 hold the hose and thereby ensure its tightness against the mouthpiece 1.

[0044] After the release of the pressure in the hose the mouthpiece 1 can be once again moved into the body 3 of the ending; the visible space of the movement of the hose with the mouthpiece 1 does not affect the tightness of the join in any way.

[0045] In this example of realization there are inner conical surfaces produced in the cavity of the ending. The first conical surface leads the hose during the pushing onto the mouthpiece 1. The second conical surface forms a support for the sealing ring 7, whereby it delimits its course of movement during the pulling out of the mouthpiece 1.

[0046] In this example the body 3 with the circumferential wall and stop 4 is pressed from the plastic as a single component. The other independent component of the ending is the plastic mouthpiece 1. The sealing ring 7 keeps the mouthpiece 1 in the body 3 during the state without the mounted hose. After the hose is mounted, the mouthpiece 1 cannot be pulled out of the ending.

Example 2

[0047] Ending in this example according to FIG. 5 forms a part of the suction pipe of the engine. The mouthpiece 1 and the body 3 are produced as one whole from the plastic. In order to allow the movement of the mouthpiece 1 against the body 3, the mouthpiece 1 is connected with the body 3 by means of flexible bellow, so-called accordion. A hose is mounted onto the mouthpiece 1 with approximately rectangular cross-section with rounder corners; the reverse movement of the mouthpiece 1 with the hose causes its locking on the stop 4. The stop 4 in this example has a form of a ring which has opening corresponding to the profile of the hose and the profile of the mouthpiece 1, and it is connected with the body 3 by four draw rods. The draw rods produce an advantageous semi-solid fixing of the hose into the body 3, whereby the bellow causes prestress which keeps the pressure of the stop 4 on the hose, which ensures the tightness of the joint even in case of underpressure in the suction pipe.

Example 3

[0048] In this example according to FIGS. 6 to 8 the ending is designed for connection of the hose with the water valve. The ending has a plastic body 3 which has grooves on the outer circumference in order to simplify the screwing of the body 3 to the outer thread on the water valve. A flat circular seal (sealing) 10, leaning on the mount in the body 3, is used in order to seal the ending against the water valve.

[0049] The body 3 has a circumferential stop 4 on one end, whereby the stop 4 is oriented against the thickening 2 on the mouthpiece 1. The mouthpiece 1 is inserted inside the body 3 from the side which has a thread for connection to the water valve. The mouthpiece 1 has thickening 2 with a conical surface 5, it also has a waist 8 which is followed by a sealing zone 9. The sealing zone 9 in this example has a disc with a diameter larger than the outer diameter of the thickening 2. There is a groove in the disc, and inside the groove is a sealing ring 7. The mouthpiece 1 is placed in the cavity of the ending; it is slidably led in the body 3 and it is sealed against the body 3 by means of the sealing ring 7. The disc is slidably led in the cylindrical cavity of the body 3.

[0050] The hose is first mounted on the body 3 without the mouthpiece 1. Then the end of the hose is pulled onto the mouthpiece 1. The end of the hose is pulled on the thickening 2 and on the waist 8 towards the disc in the sealing zone 9. The body is moved to the end of the hose and the end of the hose together with the mouthpiece 1 is pushed inside the body 3. The body 3 with the sealing 10 is connected to the outlet of the water valve. The pressure of the water pushes the mouthpiece 1 against the stop 4 which presses onto the surface of the hose in the place of thickening 2. After the release the joint and the ending are simple to disassemble and they can be used repeatedly on other hoses with approximately similar diameter and thickness of the wall.

[0051] The outer pull on the hose, for example during the manual pulling of the hose, acts in the direction of the movement of the mouthpiece 1 with the mounted hose outside the body 3. The hose in the zone of thickening 2 has a diameter which is larger than the opening in the stop 4 and the pulling out of the mouthpiece 1 from the body 3 is stopped at the stop 4.

[0052] In this example of realization, the groove is produced on the inner diameter of the opening in the circumferential stop 4 and the O ring is inserted into the groove, whereby the ring holds the hose and allows the rotation of the hose with the mouthpiece 1 against the body 3.

[0053] The body 3 is pressed from the plastic as a single component; the mouthpiece 1 is pressed as the other component. Both main components have solid form without fragile protrusions and flexible lamellas, such as those known in the state of the art.

INDUSTRIAL APPLICABILITY

[0054] Industrial applicability of the technical solution is obvious. According to this technical solution it is possible to industrially and repeatedly produce and use the endings of hoses for various uses, such as air, water or other liquids distribution in the industry or in vehicles, agriculture and at home.

LIST OF RELATED SYMBOLS

[0055] 1-mouthpiece [0056] 2-thickening [0057] 3-body [0058] 4-stop [0059] 5-conical surface on the mouthpiece [0060] 6-conical surface on the stop [0061] 7-sealing ring [0062] 8-waist of the mouthpiece [0063] 9-sealing zone [0064] 10-seal/sealing