A foam pump head

Abstract

This utility model discloses a foam pump head, including a pump head body, a pump head piston mounted on the pump head body, a piston rod installed inside the pump head piston, a ball bearing mounted on the top of the piston rod, and a piston spring sleeved on the piston rod; an air valve plug is installed inside the pump head body, a foam air valve plug nozzle is installed at the end of the air valve plug, and filter screens are installed inside both the air valve plug and the foam air valve plug nozzle, with filter screens installed on both sides of the filter screen plug inside the foam air valve plug nozzle. This utility model has a simple structure, is easy to implement, and convenient to operate. Liquid dispensing can be completed with one hand. By setting a piston spring, it facilitates uniform squeezing and even application.

Description

Technical Field

[0001] This utility model relates to the field of foam pump head technology, specifically a foam pump head. Background Technology

[0002] Most common daily chemical products on the market use pump heads for ease of use. These pump heads are connected to the bottle body via threads or clamps. When the pump head is manually pressed, air pressure is used to draw liquid from the bottle, process it into foam, and then squeeze it out from the pump nozzle. In practice, the outer cap must be unscrewed and the inner cap removed before pouring or squeezing it out from a small hole. This is very cumbersome to operate, and the amount of liquid flowing out cannot be controlled. Sometimes a lot of liquid is poured out, causing some waste, and sometimes only a little is poured out. In this case, the user has to repeat the pouring action, which cannot meet the needs of the market. Utility Model Content

[0003] The purpose of this invention is to provide a foam pump head to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a foam pump head, comprising a pump head body, a pump head piston mounted on the pump head body, a piston rod mounted inside the pump head piston, a ball bearing mounted on the top of the piston rod, and a piston spring sleeved on the piston rod;

[0005] The pump head body is equipped with an air valve plug, and a foam air valve plug nozzle is installed at the end of the air valve plug. Both the air valve plug and the foam air valve plug nozzle are equipped with filter screen plugs, and filter screens are installed on both sides of the filter screen plug inside the foam air valve plug nozzle.

[0006] Preferably, a piston sealing ring is fitted onto the piston rod.

[0007] Preferably, the piston spring is located inside the pump head piston.

[0008] Preferably, the pump head piston is fitted with a piston sealing ring II.

[0009] Preferably, a pump head cover is installed on the top of the pump head body.

[0010] Preferably, a plug is installed on one side of the pump head body, and a horn-shaped sealing ring is installed on the plug.

[0011] Preferably, the valve plug is fitted onto the foam valve plug nozzle, and both the valve plug and the foam valve plug nozzle are fitted with cavity sealing rings.

[0012] Preferably, a soft rubber stopper is installed on the nozzle of the air valve, and a piston spring is sleeved on the soft rubber stopper. The soft rubber stopper is installed inside the air valve stopper.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] With its simple structure, easy implementation, and convenient operation, the liquid can be dispensed with just one hand. The piston spring design facilitates even squeezing and coating. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the assembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the air valve plug and foam air valve plug nozzle of this utility model;

[0018] Figure 4 This is a top view of the structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the bottom structure of this utility model;

[0020] Figure 6 This is a side view of the structure of this utility model.

[0021] In the diagram: 1. Pump head body; 2. Piston rod; 3. Ball bearing; 4. Piston seal ring one; 5. Piston spring one; 6. Piston seal ring two; 7. Pump head piston; 8. Pump head cover; 9. Horn-shaped seal ring; 10. Plug; 11. Air valve plug; 12. Foam air valve plug nozzle; 13. Filter screen plug; 14. Cavity seal ring; 15. Piston spring two; 16. Soft rubber plug; 17. Filter screen. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a foam pump head, including a pump head body 1, a pump head piston 7 installed on the pump head body 1, a piston rod 2 installed inside the pump head piston 7, a ball bearing 3 installed on the top of the piston rod 2, and a piston spring 5 sleeved on the piston rod 2.

[0024] An air valve plug 11 is installed inside the pump head body 1. A foam air valve plug nozzle 12 is installed at the end of the air valve plug 11. Both the air valve plug 11 and the foam air valve plug nozzle 12 are equipped with filter screen plugs 13. Filter screens 17 are installed on both sides of the filter screen plug 13 inside the foam air valve plug nozzle 12.

[0025] In this invention, a piston sealing ring 4 is fitted onto the piston rod 2.

[0026] In this invention, the piston spring 5 is located inside the pump head piston 7.

[0027] In this invention, the pump head piston 7 is fitted with a piston sealing ring 2 6.

[0028] In this utility model, a pump head cover 8 is installed on the top of the pump head body 1.

[0029] In this utility model, a plug 10 is installed on one side of the pump head body 1, and a horn-shaped sealing ring 9 is installed on the plug 10.

[0030] In this invention, the air valve plug 11 is sleeved on the foam air valve plug nozzle 12. Both the air valve plug 11 and the foam air valve plug nozzle 12 are fitted with cavity sealing rings 14. The cavity sealing rings 14 facilitate the sealing of the foam pump head and prevent contamination.

[0031] In this utility model, a soft rubber plug 16 is installed on the air valve plug nozzle 12, and a piston spring 15 is sleeved on the soft rubber plug 16. The soft rubber plug 16 is installed inside the air valve plug 11.

[0032] The working principle of this utility model is as follows: by unscrewing the pump head cover 8, the pump head piston 7 pops out. Then, by pressing down on the pump head piston 7, the pump head piston 7 compresses the piston spring 6 and moves it evenly and slowly, which can achieve uniform liquid output. The structure is simple, easy to implement and convenient to operate. The liquid dispensing work can be completed with one hand.

[0033] The contents not described in detail in this specification are prior art known to those skilled in the art. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foam pump head, characterized in that: The pump head body (1) is equipped with a pump head piston (7), and a piston rod (2) is installed inside the pump head piston (7). A ball bearing (3) is installed on the top of the piston rod (2), and a piston spring (5) is sleeved on the piston rod (2). The pump head body (1) is equipped with an air valve plug (11), and a foam air valve plug nozzle (12) is installed at the end of the air valve plug (11). Both the air valve plug (11) and the foam air valve plug nozzle (12) are equipped with filter screen plugs (13), and filter screens (17) are installed on both sides of the filter screen plug (13) in the foam air valve plug nozzle (12).

2. A foam pump head according to claim 1, characterized in that: A piston sealing ring (4) is fitted onto the piston rod (2).

3. A foam pump head according to claim 1, characterized in that: The piston spring (5) is located inside the pump head piston (7).

4. A foam pump head according to claim 1, characterized in that: The pump head piston (7) is fitted with a piston sealing ring two (6).

5. A foam pump head according to claim 1, characterized in that: The pump head body (1) is fitted with a pump head cover (8) on top.

6. A foam pump head according to claim 1, characterized in that: A plug (10) is installed on one side of the pump head body (1), and a horn-shaped sealing ring (9) is installed on the plug (10).

7. A foam pump head according to claim 1, characterized in that: The valve plug (11) is fitted onto the foam valve plug nozzle (12), and both the valve plug (11) and the foam valve plug nozzle (12) are fitted with cavity sealing rings (14).

8. A foam pump head according to claim 7, characterized in that: A soft rubber plug (16) is installed on the air valve plug nozzle (12), and a piston spring (15) is sleeved on the soft rubber plug (16). The soft rubber plug (16) is installed inside the air valve plug (11).

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