Device for dosing liquid

Abstract

The invention relates to a device for dosing liquid from a liquid-receiving element (2), in which the liquid-receiving element (2) comprises an outlet valve (1), and a dosing system is available, said dosing system consisting of a first actuating wing (4) and a second actuating wing (5), which are arranged around the liquid-receiving element (2) and can be moved in relation to each other such that they compress the liquid-receiving element (2), a mechanical dosing stop being available.

Claims

1. Device for dosing liquid from a liquid intake (2), wherein the liquid intake (2) comprises an outlet valve (1), wherein, a dosing system is provided, wherein the dosing system comprises a first actuating blade (4) and a second actuating blade (5) which are arranged around the liquid intake (2) and can be moved relative to one another in a compressive manner, wherein the first actuating blade (4) has a first pressure piston (28) and the second actuating blade (5) has a second pressure piston (32), wherein an output chamber (27) is arranged so as to be able to be compressed by the first and second pressure pistons (28, 32) which are movably mounted relative to one another and arranged in opposition to each other, and the first and second pressure pistons (28, 32) are resettably arranged by at least one spring element (34, 39, 39.1), wherein each of the first pressure piston (28) and the second pressure piston (32) comprises a plunger (29, 29.1), a rod end (30, 30.1) mounted to one of the first blade (4) and the second blade (5), and a spring element of the at least one spring element, and further comprising a valve clip (25) for securing the valve (1) to the liquid intake (2), wherein the valve clip (25) comprises openings (26.1, 26.2) allowing communication between the liquid intake (2) and the output chamber (27) when the first and second pressure pistons (28, 32) are in an open position.

2. Device according to claim 1, wherein the first actuating blade (4) and the second actuating blade (5) are connected via a film hinge (3) and are pivotable relative to one another.

3. Device according to claim 1, wherein the first actuating blade (4) and the second actuating blade (5) have an inner wall (6), the first actuating blade (4) having a first finger support (7) and the second actuating blade (5) having a second finger support (8).

4. Device according to claim 1, wherein the first actuating blade (4) comprises one of a first connecting bar (9) and a second connecting bar (10), and the second actuating blade (5) comprises the other of the first connecting bar (9) and the second connecting bar (10).

5. Device according to claim 4, wherein the first connecting bar (9) has a guide pin (11) and the second connecting bar (10) has an elongated hole (12) receiving the guide pin (11).

6. Device according to claim 1, further comprising a protective cap (17) with pockets (18).

7. Device according to claim 1, wherein two finger actuating flanges (14) are arranged at an upper end of a slotted sleeve (13) encasing the valve intake (2).

8. Device according to claim 1, wherein the actuating blades (4, 5) are in contact with a recess (20) of the liquid intake (2) in a contour pre-stressed manner.

9. Device according to claim 1, wherein the actuating blades (4, 5), are movably connected via a film hinge (3), and are fixed and movably held together via connecting bars (9, 10) and by a guide pin (11), which is arranged in an elongated hole (12) of one connecting bar (10) of the connecting bars (9, 10).

10. Device according to claim 1, wherein a conically round pin (21) is provided, which is located on an inner wall (6) of the actuating blades (4, 5), wherein upon actuation via finger actuating flanges (14) with finger supports (7, 8) a vent hole (22) in a wall of the liquid intake (2) is closed by the finger supports (7, 8) and in a starting position releases the hole again for ventilation.

11. Device according to claim 1, wherein the at least one spring element comprises a plurality of partial springs, and the pistons are resettably arranged by the plurality of partial springs (39, 39.1) wherein each piston is acted upon by one partial spring of the plurality of partial springs.

12. Device according to claim 1, wherein the valve (1) has a sealing lip (36) which discharges the medium from a discharge channel (35) to the outside.

13. Device according to claim 12, wherein the discharge channel (35) has a 90° turn (38) in an area of the sealing lip (36) and angled towards the sealing lip (36).

14. Device according to claim 1, wherein the first and second actuating blades (4, 5) are moveable relative to each other between an open position where they are spaced away from each other and the liquid intake (2), and a closed position wherein they are moved from the open position toward each other and the liquid intake (2), wherein movement from the open position to the closed position presses fluid from output chamber (27) to a discharge (37) of the nozzle (1), and wherein movement from the closed position to the open position draws fluid from the liquid intake (2) into the output chamber (27).

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) Further advantages, features and details of the invention result from the following description of preferred embodiment and from the drawing; these show in:

(2) FIG. 1 a device according to the invention with protective cap;

(3) FIG. 2 a device according to the invention without protective cap;

(4) FIG. 3 a device according to the invention with the finger actuating flange;

(5) FIG. 4 a device according to the invention with slotted sleeve;

(6) FIG. 5 a device according to the invention with the connecting bars;

(7) FIG. 6 a device according to the invention of the dosing system;

(8) FIG. 7 a device according to the invention with the connecting bars and actuating stop;

(9) FIG. 8 a device according to the invention with slotted sleeve without actuating flange;

(10) FIG. 9 a device according to the invention with connecting bars;

(11) FIG. 10 a device according to the invention without connecting bars;

(12) FIG. 11 shows a sectional side view of a part of a further exemplary embodiment;

(13) FIG. 12 shows a further view of an additional exemplary embodiment having two partial springs; and

(14) FIG. 13 shows a further view of an additional embodiment with additional features relating to holding pins and film hinges as well as base pins.

DETAILED DESCRIPTION

(15) In FIG. 1 a device according to the invention is shown in view and partly in section. The liquid intake 2 in the contour pre-stressed slotted sleeve 13 with the two actuating blades 4 and 5, which are movably connected via a film hinge 3 up to the hub stop 15. The recesses 20 in the liquid intake 2 accommodate the contour pre-stressed slotted sleeve 13 as a disassembly safeguard.

(16) To protect the system against actuation, a protective cap 17 with two side pockets 18 for receiving the finger actuation flanges 14 with the finger supports 7 and 8 to prevent unintentional actuation of the system.

(17) FIG. 2 shows a device according to the invention in view without protective cap 17. The contour pre-stressed slotted sleeve 13 encases the liquid intake 2. At the upper end of the slotted sleeve 13 the two finger actuating flanges 14 are located with the finger supports 7 and 8 as actuating elements for the system.

(18) FIG. 3 shows a device according to the invention as a view with the finger actuating flange 14, which with the actuating blades 4 and 5 encloses the liquid intake 2 via the recess 20 in a contour pre-stressed manner and the finger supports 7 and 8.

(19) FIG. 4 shows the slotted sleeve 13 with the two actuating blades 4 and 5, the film hinge 3 and the actuating flanges 14 with the finger supports 7 and 8.

(20) FIG. 5 shows a device according to the invention in view without protective cap 17 as a snap-on design. The actuating blades 4 and 5, which are movably connected via the film hinge 3, are fixed and held in place by connecting bars 9 and 10 by the guide pin 11, which is arranged in an elongated hole 12 of the second connecting bar 10. On the opposite side of this view the same arrangement is symmetrically integrated. The partial section shows the conical round pin 21, which is located on the inner wall 6 of the actuating blade 4 or 5, which, when actuated via the finger actuating flanges 14 with the finger support 7 and 8, closes the vent hole 22 in the liquid intake wall 2 and, in the initial position, releases the hole for ventilation again.

(21) FIG. 6 shows the snapped system in unfolded condition. The two actuating blades 4 and 5, which are movably connected via the film hinge 3, merge into the finger actuating flange 14, which contains the finger supports 7 and 8. The connecting bars 9 and 10 as well as the guide pin 11 and the slotted hole 12 are integrated in the finger actuation flange 14.

(22) FIG. 7 shows a device according to the invention in view without protective cap 17 as a snap-on version. The actuating blades 4 and 5, which are movably connected via the film hinge 3, are fixed together and held in position by connecting bars 9 and 10 through the guide pin 11, which are fixed together in the elongated hole 12 of the connecting bar 10. The actuating blades 4 and 5 reach into the liquid intake 2 via round element pin 23 and fix the system.

(23) FIG. 8 shows a device according to the invention without protective cap 17. In this embodiment, the pre-stressed slotted sleeve 13 is shown without finger actuating flange 14, so that the actuation takes place directly via the sleeve wall.

(24) FIG. 9 shows the device according to the invention as a snap-on design in plan view with the two connecting bars 9 and 10, the two finger actuation flanges 14 with the finger supports 7 and 8 as well as with the outlet valve 1 with the liquid intake 2.

(25) FIG. 10 shows the device according to the invention as a contour pre-stressed version in plan view with the two finger actuating flanges 14, the actuating blades 4 and 5 as well as the outlet valve 1 with the liquid intake 2. The actuating path 19 lays between the actuating blades 4 and 5.

(26) FIG. 11 shows a sectional side view of a part of a further exemplary embodiment. There again the two actuating blades 4, 5 can be seen. The liquid intake 2 is located between the two actuating blades 4, 5. The liquid intake 2 has a neck clip 24. A valve clip 25 is provided on the neck clip 24. The valve clip 25 can be clipped onto the neck clip 24 and thus connects the valve 1 with the liquid intake 2. For this purpose, the valve clip 25 has two openings 26.1, 26.2, whereby the medium can be pressed out of the liquid intake 2 into a output chamber 27 through the two openings 26.1, 26.2.

(27) The valve 1 has a sealing lip 36 which discharges the medium from a discharge channel 35 to the outside, as indicated by the arrow 37. The discharge channel 35 has a 90° turn 38 in the area of the sealing lip 36 towards the sealing lip 36.

(28) Furthermore, the first actuating blade 4 includes a first pressure piston 28. The first pressure piston 28 in turn consists of a plunger 29, a joint head 30 and a compression element 31, while a second pressure piston 32 is shown in the same way, which in turn consists of a plunger 29.1, a joint head 30.1 and a compression element 31.1.

(29) The joint head 30 is in turn received in a joint receiver 33, whereby the joint receiver 33 is designed as part of the second actuating blade 5. In the working position, the joint receiver 33 is designed towards the liquid intake 2. Working position means, if the liquid intake 2 is located between the two actuating blades 4, 5 and the medium can be pressed out.

(30) In addition, the joint head 30.1 is in turn received in a joint receiver 33.1, whereby the joint receiver 33.1 is designed as part of the first actuating blade 4. In working position the joint receiver 33.1 is designed towards the liquid intake 2.

(31) Furthermore a spring element 34 is shown, which is arranged between the first pressure piston 28 and the second pressure piston 32. After the two pressure pistons 28, 32 have been moved towards each other by the two actuating blades 4, 5 and the two compression elements 31, 31.1 have passed through the output chamber 27 towards each other in order to press the medium located there into a discharge channel 35, the spring element 34 returns the two compression elements 31, 31.1 to their initial position.

(32) Subsequently, a negative pressure is created in the output chamber 27 and through the two openings 26.1, 26.2 new medium can flow from the liquid intake 2 into the output chamber 27. In this exemplary embodiment, the only spring element 34 is located between the first pressure piston 28 and the second pressure piston 32.

(33) A further exemplary embodiment is shown in FIG. 12, whereby the explanations regarding the features in the previous figures also being intended to be readable on this figure. This applies in particular to features with identical reference numbers. No explicit repetition is made here.

(34) Differently to FIG. 11, two partial springs 39, 39.1 are shown here. The first partial spring 39 is located between the second actuating blade 5 and the valve clip 25. Furthermore, the second partial spring 39.1 is located between the first actuating blade 4 and the valve clip 25.

(35) A further exemplary embodiment is shown in FIG. 13, whereby the explanations regarding the features in the previous figures also being intended to be readable on this figure. This applies in particular to features with identical reference numbers. No explicit repetition is made here.

(36) Otherwise a first holding pin 40.1 is shown. In the working position, the first holding pin 40.1 projects away from the second actuating blade 5 in the direction of the liquid intake 2. Furthermore, a second holding pin 40.2 is also shown, which in turn is arranged in the working position away from the first actuating blade 4 towards the liquid intake 2. Both holding pins 40, 40.1 also partially extend beyond the liquid intake 2. Furthermore, two film hinges 3 are shown, which connect a base 41 with the two actuating blades 4, 5. Furthermore, the base 41 forms a first base pin 42 and a second base pin 42.1 in order to better hold the liquid intake 2 in the working position.

(37) Although only a preferred embodiment of the invention has been described and presented, it is obvious that the skilled person can add numerous modifications without leaving the essence and scope of the invention. In particular, the skilled person may combine the combination of different features of different figures with each other within the limits of his skill. Without naming every single combination here.

REFERENCE LIST

(38) TABLE-US-00001 1 outlet valve 2 liquid intake 3 film hinge 4 first actuating blade 5 second actuating blade 6 inner wall 7 first finger support 8 second finger support 9 first connecting bar 10 second connecting bar 11 guide pin 12 elongated hole 13 slotted sleeve 14 finger actuating flange 15 hub stop 16 half shell 17 protective cap 18 pocket 19 actuating path 20 recess 21 conical round pin 22 vent hole 23 element pin 24 neck clip 25 valve clip 26 opening 27 output chamber 28 first pressure piston 29 plunger 30 joint head 31 compression element 32 second pressure piston 33 joint receiver 34 spring element 35 discharge channel 36 sealing lip 37 arrow 38 90° turn 39 partial spring 40 holding pin 41 base 42 base pin