Leak-resistant press pump head

Abstract

The utility model relates to press pump technical field, and disclose a kind of leakage-proof press pump head, including closure cap, the inner top wall of closure cap is fixedly provided with sealing assembly, press pipe is slidably arranged in the inside of closure cap, one end of press pipe is fixedly provided with positioning frame, the one side of positioning frame is fixedly provided with elastic component, one end of elastic component is fixedly provided with check cover, the bottom of press pipe is fixedly provided with extrusion spring, the bottom of closure cap is fixedly provided with pump shell body.The leakage-proof press pump head, by the setting of check cover and elastic component, press pump when liquid, liquid washes open check cover, fixed rod, telescopic rod and check spring follow extension, liquid passes through and discharges from closure piece, after pressing is completed, the reaction force of check spring drives check cover reset and sticks to closure piece, press pipe is closed, avoid liquid backflow, also avoid external contaminant to enter into press pump.

Description

Technical Field

[0001] This utility model relates to the field of press pump technology, and in particular to a leak-proof press pump head. Background Technology

[0002] A push-pump is a simple pump device that drives the flow of liquid or gas by manual pressing, and is commonly found in daily life and industrial applications.

[0003] A leak-proof press pump head disclosed in announcement number CN211168080U, although the utility model draws solution by pressing the pump tube to compress the pump core, when pressed again, the solution pushes the pump core to compress under the pump pressure, so that the solution is sprayed out from the solution channel under the pump pressure. At the same time, the solution in the bottle pushes open the ball to replenish the solution in the pump core. The pump core is limited and installed between the mounting recess and the mounting protrusion. The plug at the top of the pump core holds the solution channel, so that the pump body forms a sealed space to ensure that the solution inside the pump core will not overflow, thereby improving the leak-proof performance of the pump head.

[0004] However, this leak-proof press pump head has the following disadvantages: when the ball deforms, it will create gaps in the product, affecting the sealing effect. In addition, it is not easy to seal the outlet to prevent liquid backflow, which can easily contaminate the liquid inside the bottle. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this utility model is to provide a leak-proof press pump head to solve the problems mentioned in the background art, such as the product gap caused by the deformation of the ball, which affects the sealing effect, and the inconvenience of sealing the outlet to prevent liquid backflow and easy contamination of the liquid in the bottle.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a leak-proof press pump head, comprising a sealed cover, a sealing component fixedly disposed on the inner top wall of the sealed cover, a press tube slidably disposed inside the sealed cover, a positioning frame fixedly disposed at one end of the press tube, an elastic component fixedly disposed on one side of the positioning frame, a check cover fixedly disposed at one end of the elastic component, a compression spring fixedly disposed at the bottom of the press tube, a pump housing fixedly disposed at the bottom of the sealed cover, a limit component fixedly disposed at the bottom of the inner wall of the pump housing, a lower sealing ball movably disposed inside the limit component, an upper sealing ball movably disposed inside the press tube, and fluororubber sleeves covering the surfaces of both the upper and lower sealing balls.

[0007] As a further embodiment of this utility model, the sealing assembly includes a rubber gasket and a silicone gasket. The rubber gasket is fixedly disposed on the inner top wall of the sealing cap, and the silicone gasket is fixedly disposed on the bottom surface of the rubber gasket. The sealing assembly is used to seal the connection between the sealing cap and the bottle body.

[0008] As a further embodiment of this utility model, the elastic component includes a fixed rod, a telescopic rod, and a check spring. The fixed rod is fixedly disposed on one side of the positioning frame, the telescopic rod is slidably disposed inside the fixed rod, and the check spring is sleeved on the surface of the fixed rod and the telescopic rod. The elastic component facilitates the reset of the check cover.

[0009] As a further embodiment of this utility model, one end of the check spring is fixedly connected to the positioning frame, and the other end of the telescopic rod and the check spring is fixedly connected to the check cover. The check spring facilitates the movement and reset of the check cover.

[0010] As a further embodiment of this utility model, the limiting component includes a limiting spring and a limiting ring. The limiting spring consists of two sets, both of which are fixedly installed on the inner wall of the pump housing. The limiting ring is fixedly installed on the top of the limiting spring. The limiting component is used to limit the lower closed ball.

[0011] As a further embodiment of this utility model, a lower ball limiting cover is fixedly provided at the bottom of the inner wall of the pump housing, and the bottom of the compression spring is fixedly connected to the lower ball limiting cover. The lower ball limiting cover is used to limit the lower closed ball.

[0012] As a further embodiment of this utility model, an upper ball limiting rod is fixedly provided at the top of the inner wall of the pressing tube, and a conical groove is provided inside the pressing tube near the upper closed ball, which facilitates the movement of the upper closed ball.

[0013] As a further embodiment of this utility model, a ball seal pipe is provided through the bottom of the pump housing, and a liquid extraction pipe is provided through the bottom of the ball seal pipe, which facilitates the extraction of liquid.

[0014] As a further embodiment of this utility model, a closing piece is fixedly provided on the inner wall of the pressing tube near the positioning frame, and a through hole is provided on the surface of the closing piece to facilitate the passage of liquid.

[0015] As a further embodiment of this utility model, a pressing block is fixedly provided on the top of the pressing tube, and an anti-slip sleeve is sleeved on the surface of the pressing block, which drives the pressing tube to press down.

[0016] (III) Beneficial Effects This utility model provides a leak-proof press pump head, which has the following beneficial effects: 1. This leak-proof press pump head, through the setting of check cover and spring component, when the press pump dispenses liquid, the liquid rushes open the check cover, and the fixed rod, telescopic rod and check spring extend accordingly. The liquid passes through the closing plate and is discharged. After pressing is completed, the reaction force of the check spring drives the check cover to reset and stick to the closing plate, sealing the press tube to prevent liquid backflow and also to prevent external contaminants from entering the press pump.

[0017] 2. This leak-proof press pump head uses a sealing component and a fluororubber sleeve to thread the cap to the bottle body. Rubber and silicone pads seal the connection between the cap and the bottle body. Due to the good flexibility of the silicone pad, it can better fill any gaps that may exist, achieving a good seal. The fluororubber sleeve wraps around the upper and lower sealing balls, maintaining a seal even if the balls deform, preventing leakage caused by poor sealing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a schematic diagram of the elastic component and check valve cover structure of this utility model; Figure 4 This is a schematic diagram of the fluororubber sleeve structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the pressing tube of this utility model; Figure 6 This is a schematic diagram of the sealing component structure of this utility model.

[0019] In the diagram: 1. Sealing cap; 2. Sealing assembly; 201. Rubber gasket; 202. Silicone gasket; 3. Pressing tube; 4. Positioning frame; 5. Elastic assembly; 501. Fixing rod; 502. Telescopic rod; 503. Check spring; 6. Check cover; 7. Compression spring; 8. Pump housing; 9. Limiting assembly; 901. Limiting spring; 902. Limiting ring; 10. Lower sealing ball; 11. Upper sealing ball; 12. Fluororubber sleeve; 13. Lower ball limiting cover; 14. Upper ball limiting rod; 15. Ball sealing tube; 16. Liquid extraction tube; 17. Closing plate; 18. Pressing block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figures 1 to 6This utility model provides a technical solution: a leak-proof press pump head, including a sealing cover 1, a sealing component 2 fixedly installed on the inner top wall of the sealing cover 1, a press tube 3 slidably installed inside the sealing cover 1, a positioning frame 4 fixedly installed at one end of the press tube 3, an elastic component 5 fixedly installed on one side of the positioning frame 4, and a check cover 6 fixedly installed at one end of the elastic component 5. With the setting of the check cover 6 and the elastic component 5, when the press pump dispenses liquid, the liquid rushes open the check cover 6, and the fixing rod 501, the telescopic rod 502 and the check spring 503 extend accordingly. The liquid passes through the closing piece 17 and is discharged. After pressing is completed, the reaction force of the check spring 503 drives the check cover 6 to reset and stick to the closing piece 17, sealing the press tube 3, preventing liquid backflow, and also preventing external contaminants from entering the press pump. A compression spring 7 is fixedly installed at the bottom of the pressing tube 3, and a pump housing 8 is fixedly installed at the bottom of the sealing cover 1. A limit component 9 is fixedly installed at the bottom of the inner wall of the pump housing 8. A lower sealing ball 10 is movably installed inside the limit component 9, and an upper sealing ball 11 is movably installed inside the pressing tube 3. Fluororubber sleeves 12 are fitted onto the surfaces of both the upper and lower sealing balls 11 and 10. Through the sealing component 2 and the fluororubber sleeves 12, the sealing cover 1 is threadedly connected to the bottle body. Rubber gaskets 201 and 202 seal the connection between the sealing cover 1 and the bottle body. Since the silicone gasket 202 is flexible, it can better fill any gaps that may exist, achieving a good seal. The fluororubber sleeves 12 wrap around the upper and lower sealing balls 11 and 10, so that even if the balls are deformed, the seal can be maintained, avoiding leakage due to poor sealing.

[0022] The sealing assembly 2 includes a rubber gasket 201 and a silicone gasket 202. The rubber gasket 201 is fixedly disposed on the inner top wall of the sealing cover 1, and the silicone gasket 202 is fixedly disposed on the bottom surface of the rubber gasket 201.

[0023] By using the sealing component 2, the rubber gasket 201 and the silicone gasket 202 seal the connection between the cap 1 and the bottle body, preventing leakage.

[0024] The elastic component 5 includes a fixed rod 501, a telescopic rod 502, and a check spring 503. The fixed rod 501 is fixedly installed on one side of the positioning frame 4, the telescopic rod 502 is slidably installed inside the fixed rod 501, and the check spring 503 is sleeved on the surfaces of the fixed rod 501 and the telescopic rod 502.

[0025] With the elastic component 5 in place, when the pump is dispensing liquid, the liquid rushes open the check cover 6, and the fixed rod 501, telescopic rod 502 and check spring 503 extend accordingly. The liquid passes through the closing piece 17 and is discharged. After the pump is pressed, the reaction force of the check spring 503 drives the check cover 6 to reset and stick to the closing piece 17.

[0026] One end of the check spring 503 is fixedly connected to the positioning frame 4, and the other end of the telescopic rod 502 and the check spring 503 is fixedly connected to the check cover 6.

[0027] The telescopic rod 502 and the check spring 503 facilitate the reset of the check cover 6.

[0028] The limiting component 9 includes a limiting spring 901 and a limiting ring 902. There are two sets of limiting springs 901, both of which are fixedly installed on the inner wall of the pump housing 8. The limiting ring 902 is fixedly installed on the top of the limiting spring 901.

[0029] The limiting component 9 serves to limit the movement of the lower closed ball 10.

[0030] A lower ball limiting cover 13 is fixedly installed at the bottom of the inner wall of the pump housing 8, and the bottom of the compression spring 7 is fixedly connected to the lower ball limiting cover 13.

[0031] The lower ball limiting cover 13 serves to limit the lower closed ball 10.

[0032] An upper ball limiting rod 14 is fixedly installed at the top of the inner wall of the pressing tube 3, and a conical groove is opened in the interior of the pressing tube 3 near the upper closed ball 11.

[0033] The upper ball limiting rod 14 is designed to limit the upper closed ball 11.

[0034] A ball seal pipe 15 is provided through the bottom of the pump housing 8, and a liquid extraction pipe 16 is provided through the bottom of the ball seal pipe 15.

[0035] The liquid extraction tube 16 serves to extract liquid.

[0036] A closing piece 17 is fixedly installed on the inner wall of the pressing tube 3 near the positioning frame 4. The surface of the closing piece 17 has a through hole to facilitate the passage of liquid.

[0037] The closing piece 17 is designed to work with the check cover 6 to seal the pressing tube 3.

[0038] A pressing block 18 is fixedly installed on the top of the pressing tube 3, and an anti-slip sleeve is fitted on the surface of the pressing block 18.

[0039] The pressing block 18 is designed to press and draw out liquid.

[0040] In this invention, the working steps of the device are as follows: First step: Connect the sealing cap 1 to the bottle body via threads. Rubber gasket 201 and silicone gasket 202 seal the connection between the sealing cap 1 and the bottle body. Since the silicone gasket 202 is flexible, it can better fill any gaps that may exist, thus achieving a good seal. The second step: The fluororubber sleeve 12 is wrapped around the upper sealing ball 11 and the lower sealing ball 10. Even if the ball is deformed, it can maintain a seal and avoid leakage due to poor sealing. Third step: When the pump dispenses liquid, the liquid enters the pressing tube 3 from the pump housing 8, opens the check cover 6, and the fixed rod 501, telescopic rod 502 and check spring 503 extend accordingly, and the liquid passes through the closing piece 17 and is discharged. Fourth step: After pressing, the reaction force of the check spring 503 drives the check cover 6 to reset and fit the closing piece 17, sealing the pressing tube 3 to prevent liquid backflow and also to prevent external contaminants from entering the pressing pump.

[0041] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof press pump head, comprising a sealing cap (1), characterized in that: A sealing component (2) is fixedly installed on the inner top wall of the sealing cover (1). A pressing tube (3) is slidably installed inside the sealing cover (1). A positioning frame (4) is fixedly installed at one end of the pressing tube (3). An elastic component (5) is fixedly installed on one side of the positioning frame (4). A check cover (6) is fixedly installed at one end of the elastic component (5). A compression spring (7) is fixedly installed at the bottom of the pressing tube (3). A pump housing (8) is fixedly installed at the bottom of the sealing cover (1). A limit component (9) is fixedly installed at the bottom of the inner wall of the pump housing (8). A lower sealing ball (10) is movably installed inside the limit component (9). An upper sealing ball (11) is movably installed inside the pressing tube (3). Fluororubber sleeves (12) are fitted onto the surfaces of both the upper sealing ball (11) and the lower sealing ball (10).

2. The anti-leakage press pump head according to claim 1, characterized in that: The sealing assembly (2) includes a rubber pad (201) and a silicone pad (202). The rubber pad (201) is fixedly disposed on the inner top wall of the sealing cover (1), and the silicone pad (202) is fixedly disposed on the bottom surface of the rubber pad (201).

3. The anti-leakage press pump head according to claim 1, characterized in that: The elastic component (5) includes a fixed rod (501), a telescopic rod (502), and a check spring (503). The fixed rod (501) is fixedly disposed on one side of the positioning frame (4), the telescopic rod (502) is slidably disposed inside the fixed rod (501), and the check spring (503) is sleeved on the surface of the fixed rod (501) and the telescopic rod (502).

4. A leak-proof press pump head according to claim 3, characterized in that: One end of the check spring (503) is fixedly connected to the positioning frame (4), and the other end of the telescopic rod (502) and the check spring (503) is fixedly connected to the check cover (6).

5. A leak-proof press pump head according to claim 1, characterized in that: The limiting component (9) includes a limiting spring (901) and a limiting ring (902). The limiting spring (901) consists of two sets, both of which are fixedly installed on the inner wall of the pump housing (8). The limiting ring (902) is fixedly installed on the top of the limiting spring (901).

6. A leak-proof press pump head according to claim 1, characterized in that: The bottom of the inner wall of the pump housing (8) is fixedly provided with a lower ball limiting cover (13), and the bottom of the compression spring (7) is fixedly connected to the lower ball limiting cover (13).

7. A leak-proof press pump head according to claim 1, characterized in that: The top of the inner wall of the pressing tube (3) is fixedly provided with an upper ball limiting rod (14), and a conical groove is opened in the interior of the pressing tube (3) near the upper closed ball (11).

8. A leak-proof press pump head according to claim 1, characterized in that: A ball seal pipe (15) is provided through the bottom of the pump housing (8), and a liquid extraction pipe (16) is provided through the bottom of the ball seal pipe (15).

9. A leak-proof press pump head according to claim 1, characterized in that: The pressing tube (3) is fixedly provided with a closing piece (17) near the inner wall of the positioning frame (4), and the surface of the closing piece (17) is provided with a through hole to facilitate the passage of liquid.

10. A leak-proof press pump head according to claim 1, characterized in that: A pressing block (18) is fixedly provided on the top of the pressing tube (3), and an anti-slip sleeve is fitted on the surface of the pressing block (18).

Images