All-plastic external pump head

Abstract

The utility model relates to the technical field of pump heads, and discloses an all-plastic external pump head which comprises a pump body, a piston rod is arranged in the pump body, a spring is sleeved on the outer side of the piston rod, the bottom end of the piston rod is connected with a piston seat, the outer side of the pump body is fixedly connected with a connecting cover, and the bottom end of the pump body is connected with a suction pipe. A clamp is fixedly installed on the outer side of the pump body, a head cap is installed at the top end of the pump body, a marble is connected to the top end of the suction pipe, a piston body is arranged in the pump body, the pump body is made of a recyclable plastic material, a large ring is fixedly connected to the bottom face of the connecting cover, and a gasket is installed in the large ring. Threads are arranged on the inner wall of the large ring. According to the utility model, the pump body is made of the recyclable plastic which is made of polyethylene glycol terephthalate, so that the pump body can be recycled, pollution caused by contact between liquid and metal is avoided, and meanwhile, the influence on the environment is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of pump head technology, and in particular to an all-plastic external pump head. Background Technology

[0002] All-plastic external pump heads are pump heads made of plastic and are commonly used in the packaging of liquid products such as hand sanitizer, shampoo, shower gel, and skin care products. All-plastic external pump heads are mainly made of plastic, which is lighter and easier to transport and install than traditional metal pump heads, thus reducing logistics costs.

[0003] Existing pump heads are mostly made of non-recyclable plastics, and metal pump heads are too bulky and difficult to carry. Therefore, there is a need to design a recyclable and lightweight pump head. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an all-plastic external pump head, which aims to improve the existing pump heads that are too bulky, inconvenient to carry, and also inconvenient to recycle.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An all-plastic external pump head includes a pump body, an internal piston rod, a spring sleeved on the outside of the piston rod, a piston seat connected to the bottom end of the piston rod, a connecting cover fixedly connected to the outside of the pump body, a suction tube connected to the bottom end of the pump body, a clip fixedly installed on the outside of the pump body, a head cap installed at the top of the pump body, a ball connected to the top end of the suction tube, and a piston inside the pump body. The pump body is made of recyclable plastic material.

[0007] Preferably, the connecting cover has a large ring fixedly connected to its abutment surface.

[0008] Preferably, a gasket is installed inside the large ring.

[0009] Preferably, the inner wall of the large ring is threaded.

[0010] Preferably, a switch is provided inside the pump body.

[0011] Preferably, the cap and the pump body are rotatably connected.

[0012] Preferably, the outer surface of the pump body is provided with rounded corners.

[0013] This utility model has the following beneficial effects:

[0014] 1. The pump body of this utility model is made of recyclable plastic, which is polyethylene terephthalate. This allows the pump body to be recycled and reused, avoiding pollution caused by contact between liquid and metal, and reducing the impact on the environment. Compared with traditional metal pump heads, plastic material is lighter and easier to transport and install, reducing logistics costs. Plastic material can be used to manufacture pump heads of various shapes and sizes through injection molding and other processes to meet the needs of different products. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an all-plastic external pump head proposed in this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of an all-plastic external pump head proposed in this utility model.

[0017] Legend:

[0018] 1. Cap; 2. Spring; 3. Piston rod; 4. Clip; 5. Connecting cover; 6. Large ring; 7. Gasket; 8. Pump body; 9. Switch; 10. Piston body; 11. Piston seat; 12. Ball; 13. Straw. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1 and Figure 2 An embodiment of this utility model provides: an all-plastic external pump head, including a pump body 8, a piston rod 3 inside the pump body 8, a spring 2 sleeved on the outside of the piston rod 3, a piston seat 11 connected to the bottom end of the piston rod 3, a connecting cover 5 fixedly connected to the outside of the pump body 8, a suction tube 13 connected to the bottom end of the main body, a clip 4 fixedly installed on the outside of the pump body 8, a head cap 1 installed at the top of the pump body 8, a ball 12 connected to the top of the suction tube 13, a piston body 10 inside the pump body 8, and the pump body 8 is made of recyclable plastic material.

[0021] Specifically, a discharge port is provided on one side of the cap 1. When in use, the cap 1 can be manually pressed down, the volume in the pump body 8 chamber decreases and the pressure increases. The liquid enters the nozzle chamber through the valve core hole and is then sprayed out through the nozzle. After the cap 1 is released, the volume in the spring 2 chamber increases, forming a negative pressure. The liquid in the bottle enters the spring 2 chamber. When pressed again, the liquid stored in the valve body will rush upward and be sprayed out through the nozzle. By pressing down the piston rod 3, the piston rod 3 compresses the air, which increases the pressure inside the pump body 8, providing power for squeezing out the liquid. This allows the material inside the bottle to be sucked into the suction tube 13 and discharged from the discharge port, thus completing the discharge.

[0022] Reference Figure 1 A large ring 6 is fixedly connected to the bottom surface of the connecting cover 5. A gasket 7 is installed inside the large ring 6, and the inner wall of the large ring 6 is threaded.

[0023] Specifically, the threads on the inner wall of the large ring 6 allow it to connect to the pump body 8 and the external bottle body. The gasket 7 contacts the external bottle opening, which increases the sealing between the connecting cap 5 and the bottle body and prevents liquid from overflowing.

[0024] Reference Figure 1 and Figure 2 The pump body 8 has a switch 9 inside, and the head cap 1 is rotatably connected to the pump body 8. The outer surface of the pump body 8 has rounded corners.

[0025] Specifically, by pressing down the piston rod 3, the switch 9 can be opened. When the spring 2 drives the piston rod 3 to reset, the switch 9 can be closed, thus preventing liquid from overflowing from the back of the bottle. By rotating the cap 1, the angle of the discharge port on one side of the cap 1 can be changed, thereby adjusting the discharge direction and enhancing the practicality of the pump body 8. In addition, the outer surface of the pump body 8 adopts a rounded corner design with a smooth and rounded transition, avoiding sharp corners and ensuring safety and ease of use.

[0026] Working principle: When using this device, the straw 13 can be extended into the outer bottle body. By connecting the cap 5 to the threaded opening of the outer bottle, the pump body 8 can be fixedly installed on the outer bottle body. When the cap 1 is manually pressed down, the volume in the pump body 8 chamber decreases and the pressure increases. The liquid enters the nozzle chamber through the hole of the valve core, and then sprays out through the cap 1. After releasing the cap 1, the volume in the pump body 8 chamber increases, forming a negative pressure. The liquid in the bottle enters the pump body 8 chamber through the straw 13. When pressed again, the liquid stored in the pump body 8 will rush upward and be sprayed out through the nozzle on the cap 1, thus completing the liquid discharge.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A full plastic external pump head comprising a pump body (8), characterized in that: The inside of the pump body (8) is provided with a piston rod (3), the outer side of the piston rod (3) is sleeved with a spring (2), the bottom end of the piston rod (3) is connected with a piston seat (11), the outer side of the pump body (8) is fixedly connected with a connecting cover (5), the bottom end of the pump body (8) is connected with a suction pipe (13), the outer side of the pump body (8) is fixedly installed with a clamp (4), the top end of the pump body (8) is installed with a head cap (1), the top end of the suction pipe (13) is connected with a marble (12), the inside of the pump body (8) is provided with a piston body (10), and the pump body (8) is made of recyclable plastic material.

2. A full plastic external pump head according to claim 1, characterized in that: The opposite surface of the connecting cover (5) is fixedly connected with a large ring (6).

3. A full plastic external pump head according to claim 2, characterized in that: The inside of the large ring (6) is installed with a gasket (7).

4. A full plastic external pump head according to claim 2, characterized in that: The inner wall of the large ring (6) is provided with threads.

5. The all-plastic external pump head of claim 1, wherein: The inside of the pump body (8) is provided with a switch (9).

6. A full plastic external pump head as claimed in claim 1, wherein: The head cap (1) and the pump body (8) are connected through rotation.

7. A full plastic external pump head as claimed in claim 1, wherein: The outer side surface of the pump body (8) is provided with a round corner.

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