A micro plunger foam pump

Abstract

The present invention discloses a micro plunger foam pump, which includes a pump body, a cylinder body fixed horizontally in the pump body, a first cavity formed in the cylinder body and a piston assembly slidably connected to the cylinder body, a groove provided on the top of the pump body, an air-water hinge provided horizontally in the groove, a first annular groove formed on the left side of the air-water hinge, a second annular groove formed on the right side of the air-water hinge, an air-water valve head fixed in the groove, a first water inlet formed on the left side of the groove, a first air inlet formed on the right side of the groove, the first water inlet and the first air inlet both pass through the first cavity, a second water inlet formed on the left side of the air-water valve head, a second air inlet formed on the right side of the air-water valve head, a first through hole formed on the left side of the top of the cylinder body, and a second through hole formed on the right side of the top of the cylinder body.

Description

Technical Field

[0001] The present invention particularly relates to a micro plunger foam pump. Background Art

[0002] An electric toothbrush is a type of toothbrush invented. The rapid rotation or vibration of the electric motor causes the brush head to vibrate at high frequencies, instantly breaking down the toothpaste into fine foam and deeply cleaning the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the mouth and have a massage effect on the gum tissue.

[0003] The existing automatic liquid-discharging foam pump used in electric toothbrushes is large in size, and the foam pump forms foam by squeezing out a mixture of liquid and gas. However, the extruded foam pump is not only not uniform, but also forms less foam, resulting in unsatisfactory oral hygiene effect when combined with a toothbrush, high production cost, and loud noise during use. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] A micro plunger foam pump comprises a pump body, wherein a cylinder body is horizontally fixed in the pump body, a first cavity is formed in the cylinder body and a piston assembly is provided in the first cavity which is slidably connected thereto, a groove is provided at the top of the pump body, an air-water hinge is horizontally provided in the groove, a first annular groove is formed on the left side of the air-water hinge, a second annular groove is formed on the right side of the air-water hinge, an air-water valve head is fixed in the groove, a first water inlet is formed on the left side of the groove, a first air inlet is formed on the right side of the groove, the first water inlet and the first air inlet both pass through the first cavity, a second water inlet is formed on the left side of the air-water valve head, a second air inlet is formed on the right side of the air-water valve head, a first through hole is formed on the left side of the top of the cylinder body, and a second through hole is formed on the right side of the top of the cylinder body;

[0006] A pump head is connected and fixed to the left side of the pump body, and a second cavity is formed at the connection between the pump head and the pump body. A filter cup is fixed in the second cavity. A partition plate is formed between the first cavity and the second cavity. A third through hole is formed in the middle of the partition plate, which passes through the left and right sides thereof. A silicone pad valve is provided in the third through hole. The right side of the silicone pad valve passes through the first cavity, and the left side of the silicone pad valve is provided in the second cavity.

[0007] Preferably, the first water inlet, the second water inlet and the first through hole are arranged at the same vertical position.

[0008] Preferably, the first air inlet, the second air inlet and the second through hole are arranged at the same vertical position.

[0009] Preferably, a plurality of leakage holes penetrating the first cavity and the second cavity are formed around the middle of the partition plate.

[0010] Preferably, a filter screen is formed on the left side of the filter cup.

[0011] Preferably, a water outlet is formed in the middle of the first pump head.

[0012] Preferably, the silicone pad valve is formed into an umbrella shape.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the micro plunger foam pump of the present invention has a smaller volume and the shortest compression stroke, and compared with the existing pump body, it reduces the gear components, reduces the production cost and process, and reduces the noise.

[0014] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic cross-sectional structure diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the pump body structure of the present invention.

[0020] In the figure: 1. Pump body, 2. Cylinder body, 3. First cavity, 4. Piston assembly, 5. Groove, 6. Air-water hinge, 7. First annular groove, 8. Second annular groove, 9. Air-water valve head, 10. First water inlet, 11. First air inlet, 12. Second water inlet, 13. Second air inlet, 14. First through hole, 15. Second through hole, 16. Pump head, 17. Second cavity, 18. Filter cup, 19. Spacer, 20. Third through hole, 21. Silicone pad valve, 22. Leakage hole, 23. Filter screen, 24. Water outlet. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 In an embodiment of the present invention, a micro plunger foam pump includes a pump body 1, a cylinder body 2 is horizontally fixed in the pump body 1, a first cavity 3 is formed in the cylinder body 2, and a piston assembly 4 is provided in a sliding connection with the cylinder body 2, a groove 5 is provided on the top of the pump body 1, an air-water hinge 6 is horizontally provided in the groove 5, a first annular groove 7 is formed on the left side of the air-water hinge 6, and a second annular groove 8 is formed on the right side of the air-water hinge 6, an air-water valve head 9 is fixed in the groove 5, a first water inlet 10 is formed on the left side of the groove 5, a first air inlet 11 is formed on the right side of the groove 5, the first water inlet 10 and the first air inlet 11 are both connected to the first cavity 3, a second water inlet 12 is formed on the left side of the air-water valve head 9, a second air inlet 13 is formed on the right side of the air-water valve head 9, a first through hole 14 is formed on the left side of the top of the cylinder body 2, and a second through hole 15 is formed on the right side of the top of the cylinder body 2;

[0023] A pump head 16 is connected and fixed to the left side of the pump body 1. A second cavity 17 is formed at the connection between the pump head 16 and the pump body 1. A filter cup 18 is fixed in the second cavity 17. A partition plate 19 is formed between the first cavity 3 and the second cavity 17. A third through hole 20 is formed in the middle of the partition plate 19, which passes through the left and right sides thereof. A silicone pad valve 21 is provided in the third through hole 20. The right side of the silicone pad valve 21 passes through the first cavity 3, and the left side of the silicone pad valve 21 is provided in the second cavity 17.

[0024] Preferably, the first water inlet 10 , the second water inlet 12 and the first through hole 14 are arranged at the same vertical position.

[0025] Preferably, the first air inlet 11 , the second air inlet 13 and the second through hole 15 are arranged at the same vertical position.

[0026] Preferably, a plurality of leakage holes 22 penetrating the first cavity 3 and the second cavity 17 are formed around the middle of the partition plate 19 .

[0027] Preferably, a filter screen 23 is formed on the left side of the filter cup 18 .

[0028] Preferably, a water outlet 24 is formed in the middle of the first pump head 16 .

[0029] Preferably, the silicone pad valve 21 is formed into an umbrella shape.

[0030] Working principle: When the piston slides to the right, negative pressure is generated, water enters the first cavity 3 from the second water inlet 12, and gas enters the first cavity 3 from the second air inlet 13. After the water and gas enter the first cavity 3, when the piston slides to the left again, the air valve hinge blocks the gas and water to prevent leakage from the first water inlet 10 and the second first air inlet 11. After the gas and water are mixed together, they enter the second cavity 17 from the leakage hole 22. The piston then pushes the silicone pad valve 21 forward, and the water in the second cavity 17 is mixed again and finally discharged from the water outlet 24 through the filter cup 18.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A miniature plunger foam pump, characterized in that: The pump comprises a pump body, a cylinder body being fixed horizontally in the pump body, a first cavity being formed in the cylinder body and a piston assembly being slidably connected thereto, a groove being provided at the top of the pump body, a gas-water hinge being horizontally provided in the groove, a first annular groove being formed on the left side of the gas-water hinge, a second annular groove being formed on the right side of the gas-water hinge, a gas-water valve head being fixed in the groove, a first water inlet being formed on the left side of the groove, a first air inlet being formed on the right side of the groove, the first water inlet and the first air inlet both being connected to the first cavity, a second water inlet being formed on the left side of the gas-water valve head, a second air inlet being formed on the right side of the gas-water valve head, a first through hole being formed on the left side of the top of the cylinder body, and a second through hole being formed on the right side of the top of the cylinder body; A pump head is connected and fixed to the left side of the pump body, and a second cavity is formed at the connection between the pump head and the pump body. A filter cup is fixed in the second cavity. A partition plate is formed between the first cavity and the second cavity. A third through hole is formed in the middle of the partition plate, which passes through the left and right sides thereof. A silicone pad valve is provided in the third through hole. The right side of the silicone pad valve passes through the first cavity, and the left side of the silicone pad valve is provided in the second cavity.

2. A micro plunger foam pump according to claim 1, characterized in that: The first water inlet, the second water inlet and the first through hole are arranged at the same vertical position.

3. A micro plunger foam pump according to claim 1, characterized in that: The first air inlet, the second air inlet and the second through hole are arranged at the same vertical position.

4. A micro plunger foam pump according to claim 1, characterized in that: A plurality of leakage holes penetrating the first cavity and the second cavity are formed around the middle of the partition plate.

5. The micro plunger foam pump according to claim 1, characterized in that: A filter is formed on the left side of the filter bowl.

6. The micro plunger foam pump according to claim 1, characterized in that: A water outlet is formed in the middle of the first pump head.

7. The micro plunger foam pump according to claim 1, characterized in that: The silicone pad valve is molded into an umbrella shape.

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