A quantitative valve

Abstract

The utility model provides a kind of quantitative valve, it includes: liquid inlet pipe, the top of the liquid inlet pipe is arranged with infusion tube, the liquid inlet pipe and the infusion tube are hollowly arranged, the infusion tube is communicated with the liquid inlet pipe, the top of the infusion tube is fixedly provided with top plate, the inside of the top plate is slidably provided with sleeve joint column, the inside of the sleeve joint column is slidably provided with valve core, the inside of the valve core is provided with liquid injection groove, the bottom of the valve core is provided with liquid inlet, when the volume of quantitative cavity needs to be adjusted, the user manually moves sliding plate, moves sliding plate away from connecting rod, moves L-shaped insertion rod by sliding plate, makes the inside of first insertion hole and second insertion hole of L-shaped insertion rod, then manually moves connecting rod upwards or downwards, moves plugging disc by connecting rod, to achieve the purpose of adjusting the volume of quantitative cavity, facilitate user to adjust spray amount.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to a metering valve. Background Technology

[0002] Valves used on cans for aerosols and binary pressure packaging are mostly non-quantitative, making it difficult for users to control the liquid flow. This results in either insufficient liquid flow, requiring multiple valve presses, or excessive liquid flow, leading to waste. While some nominally "quantitative valves" exist in the existing technology, both domestically and internationally, these valves are not truly quantitative in the strict sense.

[0003] The prior art can be referenced to Chinese authorized utility model patent with publication number CN208605679U, which specifically describes a metering valve, including a valve body, a valve core, a spring, an upper sealing ring, and a lower sealing ring. A metering cavity is formed between the valve core and the valve body. The spring is installed within the metering cavity, with its upper end connected to the valve core and its lower end connected to the valve body. The upper part of the valve core has a liquid outlet channel and a liquid outlet hole communicating with the liquid outlet channel. The lower part of the valve core has a liquid inlet cavity and a liquid inlet hole communicating with the liquid inlet cavity. An upper sealing ring is provided at the upper end of the valve body, corresponding to the liquid outlet hole. A lower sealing ring is provided at the lower end of the valve body, corresponding to the liquid inlet hole.

[0004] The aforementioned prior art has the following shortcomings in practical implementation: the volume of the metering chamber in the prior art cannot be adjusted, so the amount ejected is fixed and cannot be adjusted at will. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a metering valve to solve the issues existing in the prior art.

[0006] To achieve the above objectives, the present invention provides a quantitative valve comprising: an inlet pipe, a delivery pipe arranged at the top of the inlet pipe, both the inlet pipe and the delivery pipe being hollow, the delivery pipe being connected to the inlet pipe, a top plate being fixedly provided at the top of the delivery pipe, a sleeve post being slidably provided inside the top plate, a valve core being slidably provided inside the sleeve post, a spray groove being provided inside the valve core, and an inlet being provided at the bottom of the valve core;

[0007] Both ends of the top plate are slidably provided with connecting rods, and the bottom of the two connecting rods are connected to a sealing plate. A groove is opened in the middle of the sealing plate, and the bottom of the valve core passes through the sealing plate. A metering cavity is formed between the sealing plate and the top of the infusion tube.

[0008] The tops of the two connecting rods are connected to a connecting ring.

[0009] Furthermore, a docking plate is fitted on the top of the connecting rod, and multiple L-shaped inserts are slidably arranged inside the docking plate. Multiple first insertion holes are opened on the outer wall of the connecting rod, and docking grooves are opened at both ends of the top of the top plate. The connecting rod passes through the docking grooves, and multiple second insertion holes are opened on the inner wall of the docking grooves.

[0010] Furthermore, the docking plate has multiple sliding grooves inside, the L-shaped insert rod is slidably disposed inside the sliding grooves, and multiple sliding plates are slidably disposed on the top of the docking plate, with one end of the L-shaped insert rod being fixedly connected to the sliding plate.

[0011] Furthermore, the outer wall of the sleeve post is provided with external threads, and the inner wall of the top plate is provided with multiple internal threads.

[0012] Furthermore, a sleeve is fixedly provided on the top outer wall of the infusion tube.

[0013] Furthermore, the inner top of the inlet pipe and the bottom of the delivery pipe are both threaded.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: when it is necessary to adjust the volume of the metering chamber, the user manually moves the sliding plate away from the connecting rod, and the sliding plate drives the L-shaped insert rod to move, so that the L-shaped insert rod moves into the inside of the first and second insert holes. Then, the user manually moves the connecting rod up or down, and the connecting rod drives the sealing plate to move, thereby achieving the purpose of adjusting the volume of the metering chamber, which makes it convenient for the user to adjust the spray volume.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the infusion tube in this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the infusion tube in this utility model;

[0020] Figure 5 This is an appendix to the utility model Figure 4 Enlarged view of A in the middle;

[0021] Figure 6 This is a top view of the connecting plate in this utility model.

[0022] In the diagram: 1. Inlet pipe; 2. Infusion pipe; 3. Housing; 4. Valve core; 5. Spray groove; 6. External thread; 7. Inlet; 8. Connecting rod; 9. Sealing plate; 10. Rubber ring; 11. Connecting ring; 12. Metering chamber; 13. Connecting plate; 14. Sliding plate; 15. L-shaped insert rod; 16. First insertion hole; 17. Second insertion hole; 18. Slide groove; 19. Top plate; 20. Connecting groove; 21. Sleeve column. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of this utility model are now described with reference to the accompanying drawings. However, the scope of protection of this utility model is not limited to the following description.

[0024] Reference Figure 1-6 As shown, a quantitative valve includes: an inlet pipe 1, an inlet pipe 2 arranged at the top of the inlet pipe 1, both the inlet pipe 1 and the inlet pipe 2 being hollow, the inlet pipe 2 being connected to the inlet pipe 1, a top plate 19 being fixedly provided at the top of the inlet pipe 2, a sleeve post 21 being slidably provided inside the top plate 19, a valve core 4 being slidably provided inside the sleeve post 21, a spray groove 5 being provided inside the valve core 4, and an inlet port 7 being provided at the bottom of the valve core 4;

[0025] Both ends of the top plate 19 are slidably provided with connecting rods 8. The bottom of the two connecting rods 8 are connected to a sealing disc 9. A groove is opened in the middle of the sealing disc 9. The bottom of the valve core 4 passes through the sealing disc 9. A metering chamber 12 is formed between the sealing disc 9 and the top of the infusion tube 2. The top of the two connecting rods 8 are connected to a connecting ring 11. The outer wall of the sleeve column 21 is provided with external threads 6, and the inner wall of the top plate 19 is provided with multiple internal threads.

[0026] A connecting rod 8 is fitted with a docking plate 13 at its top. Multiple L-shaped inserts 15 are slidably arranged inside the docking plate 13. Multiple first insertion holes 16 are opened on the outer wall of the connecting rod 8. The top two ends of the top plate 19 are provided with docking grooves 20. The connecting rod 8 passes through the docking grooves 20. Multiple second insertion holes 17 are opened on the inner wall of the docking grooves 20. Multiple sliding grooves 18 are opened inside the docking plate 13. The L-shaped inserts 15 are slidably arranged inside the sliding grooves 18. Multiple sliding plates 14 are slidably arranged on the top of the docking plate 13. One end of the L-shaped insert 15 is fixedly connected to the sliding plate 14.

[0027] The present invention provides a technical solution in which, during use, the valve core 4 is pressed down to move it downwards, allowing the inlet 7 to enter the metering chamber 12. Liquid inside the metering chamber 12 enters the valve core 4 through the inlet 7 and is then sprayed outwards. When the volume of the metering chamber 1 needs to be adjusted, the user manually moves the sliding plate 14 away from the connecting rod 8. This moves the L-shaped insert 15, placing it inside the first insertion hole 16 and the second insertion hole 17. Then, the connecting rod 8 is manually moved upwards or downwards, causing the sealing plate 9 to move, thereby adjusting the volume of the metering chamber 12 and facilitating the user's adjustment of the spray volume. After adjustment, the sliding plate 14 is moved in the opposite direction, moving the L-shaped insert 15 into the first insertion hole 16 and the second insertion hole 17, thus fixing the connecting rod 8. After adjusting the sealing disc 9, the user rotates the sleeve 21 clockwise. Through the setting of the external thread 6 and the internal thread, the sleeve 21 moves upward when rotated clockwise, thereby adjusting the position of the valve core 4, which is convenient to cooperate with the sealing disc 9 for adjustment, so as to achieve the effect of adjusting the volume quantitatively.

[0028] Preferably, a sleeve 3 is fixedly installed on the top outer wall of the infusion tube 2.

[0029] Preferably, the top of the inlet pipe 1 and the bottom of the infusion pipe 2 are both threaded.

[0030] Specifically, by rotating the infusion tube 2 clockwise using the provided thread, the infusion tube 2 moves downwards. The volume inside the infusion tube 2 and the infusion tube 1 can be adjusted by adjusting the position of the infusion tube 2.

[0031] Working process: During use, press down on the valve core 4 to move it downwards, allowing the inlet 7 to enter the metering chamber 12. The liquid inside the metering chamber 12 enters the valve core 4 through the inlet 7 and then sprays outwards. When it is necessary to adjust the volume of the metering chamber 1, the user manually moves the sliding plate 14 away from the connecting rod 8. The sliding plate 14 drives the L-shaped insert 15 to move into the first insertion hole 16 and the second insertion hole 17. Then, manually move the connecting rod 8 up or down, which drives the sealing plate 9 to move, thereby achieving the purpose of adjusting the volume of the metering chamber 12.

[0032] After adjustment, the sliding plate 14 is moved in the opposite direction, which drives the L-shaped plug rod 15 to move into the first plug hole 16 and the second plug hole 17, thereby fixing the connecting rod 8.

[0033] Rotating the sleeve 21 clockwise causes the external thread 6 and internal thread to move upwards, thereby adjusting the position of the valve core 4 for easy adjustment in conjunction with the sealing disc 9. The infusion tube 2 moves downwards when rotated clockwise via the threaded connection. Adjusting the position of the infusion tube 2 allows for adjustment of the internal volume of both the infusion tube 2 and the inlet tube 1.

[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A metering valve, comprising an inlet pipe (1), wherein an inlet pipe (2) is arranged at the top of the inlet pipe (1), characterized in that: Both the inlet pipe (1) and the delivery pipe (2) are hollow. The delivery pipe (2) is connected to the inlet pipe (1). A top plate (19) is fixedly installed on the top of the delivery pipe (2). A sleeve post (21) is slidably installed inside the top plate (19). A valve core (4) is slidably installed inside the sleeve post (21). A spray groove (5) is opened inside the valve core (4). An inlet port (7) is opened at the bottom of the valve core (4). Both ends of the top plate (19) are slidably provided with connecting rods (8), and the bottom of the two connecting rods (8) are connected to a sealing plate (9). A groove is opened in the middle of the sealing plate (9), and the bottom of the valve core (4) passes through the sealing plate (9). A metering cavity (12) is formed between the sealing plate (9) and the top of the infusion tube (2). The tops of the two connecting rods (8) are connected to a connecting ring (11).

2. A metering valve according to claim 1, characterized in that: The connecting rod (8) is fitted with a docking plate (13) at the top. Multiple L-shaped inserts (15) are slidably arranged inside the docking plate (13). Multiple first insertion holes (16) are opened on the outer wall of the connecting rod (8). The top plate (19) has docking grooves (20) at both ends. The connecting rod (8) passes through the docking groove (20). Multiple second insertion holes (17) are opened on the inner wall of the docking groove (20).

3. A metering valve according to claim 2, characterized in that: The docking plate (13) has multiple grooves (18) inside, the L-shaped rod (15) is slidably disposed inside the grooves (18), and multiple sliding plates (14) are slidably disposed on the top of the docking plate (13). One end of the L-shaped rod (15) is fixedly connected to the sliding plate (14).

4. A metering valve according to claim 1, characterized in that: The outer wall of the sleeve post (21) is provided with external threads (6), and the inner wall of the top plate (19) is provided with multiple internal threads.

5. A metering valve according to claim 1, characterized in that: The top outer wall of the infusion tube (2) is fixedly provided with a sleeve (3).

6. A metering valve according to claim 1, characterized in that: The inner top of the inlet pipe (1) and the bottom of the delivery pipe (2) are both threaded.

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