Miniature water pump leather cup

Abstract

The utility model discloses a miniature water pump leather cup which comprises an inner supporting leather cup. According to the utility model, the inner supporting leather cup is arranged, the supporting ring is pressed to be forced to shrink the size structure of the supporting ring, then the supporting ring is embedded and plugged into the inner cavity of the leather cup, then the supporting ring recovers elastic deformation and shape recovery, and at the moment, the supporting ring abuts against the inner wall of the inner cavity of the leather cup in an attached manner to provide internal support for the leather cup main body; the rubber cup body is kept in an expansion state, inward collapse caused by elasticity loss due to material aging is avoided, the structural shape stability of the rubber cup body can be enhanced, and therefore the sealing durability is enhanced. The fracture part is arranged on the surface of the supporting ring in a cut-off mode, the supporting ring can contract the size structure through the fracture part, and the sealing performance of the rubber cup body is improved. The supporting ring can be embedded and plugged into the inner cavity of the leather cup, and assembling is easy.

Description

Technical Field

[0001] This utility model relates to the field of piston sealing technology, specifically a micro water pump seal cup. Background Technology

[0002] In a piston pump, the piston cup is an important sealing component. By wrapping the piston cup around the edge of the piston, the piston can reciprocate to form a sealed cavity, preventing water or media from leaking between the piston and the pump barrel, thus ensuring efficient water intake and drainage.

[0003] Existing patent application number: 202420823477.9 Wear-resistant leather cup for sewage treatment, comprising: a leather cup body, the leather cup body including a sealing part and a cup bottom; a wear-resistant layer, the sealing part including the wear-resistant layer; and a replacement layer, the wear-resistant layer having a replacement layer on the outside.

[0004] The aforementioned patent describes a leather cup seal. In practical applications, leather cups are usually made of rubber. However, prolonged use can cause the rubber material of the leather cup to age, weakening its elasticity and making it unable to maintain an effective seal. The functional structure of the leather cup can be further improved to enhance its sealing durability and extend the replacement cycle. Utility Model Content

[0005] The purpose of this invention is to provide a miniature water pump cup to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a miniature water pump cup, comprising an inner support cup, the inner support cup comprising a cup body, a cup cavity, an assembly hole, a limiting ring, and a support ring. The cup body has an inner cavity, which is an open cavity. The bottom surface of the cup cavity has an assembly hole in the middle, which extends to the bottom of the cup body. A limiting ring is integrally formed on the upper part of the inner wall of the cup cavity. A support ring is nested inside the cup cavity, and the installation height of the support ring is lower than the setting height of the limiting ring.

[0007] Preferably, the support ring is made entirely of stainless steel.

[0008] Preferably, the outer surface of the support ring is designed as an arc.

[0009] Preferably, the surface of the support ring is provided with a cut-off portion.

[0010] Preferably, the outer surface of the support ring is provided with anti-slip texture.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention incorporates an internal support cup. By pressing a support ring, the cup is forced to shrink in size and structure. The support ring is then inserted into the inner cavity of the cup. Subsequently, the support ring recovers its elastic deformation and returns to its original shape. At this point, the support ring fits tightly against the inner wall of the cup, providing internal support for the cup body. This keeps the cup body in an expanded state, preventing it from collapsing inward due to loss of elasticity caused by material aging. This enhances the structural stability of the cup body, thereby improving sealing durability.

[0013] This invention features a cut-off section on the surface of the support ring, allowing the support ring to shrink its size and be easily fitted into the inner cavity of the cup, thus facilitating assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main body of the leather bowl in this utility model;

[0016] Figure 3 This is a schematic diagram of the support ring structure in this utility model.

[0017] In the diagram: Inner support cup-1, cup body-11, cup inner cavity-12, assembly hole-13, limiting ring-14, support ring-15, break-off section-15a, anti-slip texture-15b. Detailed Implementation

[0018] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0019] Please see Figure 1-3 This utility model provides a miniature water pump piston cup, including an inner support piston cup 1. The inner support piston cup 1 includes a piston cup body 11, a piston cup cavity 12, an assembly hole 13, a limiting ring 14, and a support ring 15. The piston cup body 11 has an inner piston cup cavity 12 inside, which is an open cavity. The assembly hole 13 is provided in the middle of the bottom surface of the inner piston cup cavity 12, and the assembly hole 13 extends to the bottom of the piston cup body 11. The piston cup body 11 is assembled with the water pump piston through the assembly hole 13. A limiting ring 14 is integrally provided on the upper part of the wall. A support ring 15 is nested inside the inner cavity 12 of the cup. The support ring 15 is made of stainless steel to meet the requirements of elasticity and rust prevention. The installation height of the support ring 15 is lower than the setting height of the limiting ring 14. The limiting ring 14 can lock the support ring 15 to prevent it from falling off accidentally. The outer surface of the support ring 15 is arc-shaped, so that the support ring 15 can better fit the curved inner wall of the cup 12 and improve the support stability.

[0020] Specifically, firstly, the support ring 15 is pressed to force it to shrink its own size and structure. Then, the support ring 15 is inserted into the inner cavity 12 of the leather cup. Subsequently, the support ring 15 restores its elastic deformation and returns to its original shape. At this time, the support ring 15 fits tightly against the inner wall of the inner cavity 12 of the leather cup to provide internal support for the leather cup body 11, keeping the leather cup body 11 in an expanded state and preventing it from collapsing inward due to loss of elasticity caused by material aging. This can enhance the structural shape stability of the leather cup body 11, thereby strengthening the sealing durability.

[0021] Specifically, by cutting off the surface of the support ring 15 with a break portion 15a, the support ring 15 can shrink its own size structure through the break portion 15a, so that the support ring 15 can be inserted into the inner cavity 12 of the leather cup, which is easy to assemble.

[0022] Specifically, by providing anti-slip texture 15b on the outer surface of the support ring 15, the anti-slip texture 15b can increase the friction between the support ring 15 and the inner cavity 12 of the cup, ensuring that the support ring 15 is installed stably and is not easy to slide or deviate.

[0023] The above description is merely 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 miniature water pump cup, characterized in that: The device includes an inner support cup (1), which includes a cup body (11), a cup cavity (12), an assembly hole (13), a limiting ring (14), and a support ring (15). The cup body (11) has an inner cup cavity (12) inside, which is an open cavity. The cup cavity (12) has an assembly hole (13) in the middle of the bottom surface of the cup cavity (12), which extends to the bottom of the cup body (11). The upper part of the inner wall of the cup cavity (12) is integrally provided with a limiting ring (14). The support ring (15) is nested inside the cup cavity (12), and the installation height of the support ring (15) is lower than the setting height of the limiting ring (14).

2. The miniature water pump cup according to claim 1, characterized in that: The support ring (15) is made entirely of stainless steel.

3. The miniature water pump cup according to claim 1, characterized in that: The outer surface of the support ring (15) is designed with an arc surface.

4. The miniature water pump cup according to claim 1, characterized in that: The support ring (15) has a cut-off portion (15a) on its surface.

5. The miniature water pump cup according to claim 1, characterized in that: The outer surface of the support ring (15) is provided with anti-slip texture (15b).

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