Air pump leather cup with good air tightness

Abstract

The utility model discloses an air pump leather cup with good air tightness, which comprises a main bearing part of the air pump leather cup, namely a main body surrounding ring, a connecting seat coaxial with the main body surrounding ring is arranged in the middle of the top of the main body surrounding ring, a thin circular ring connecting part is arranged on the radial outer edge of the connecting seat, and a shoulder edge connecting part is arranged on the radial outer edge of the thin circular ring connecting part. The outer edge of the shoulder edge connecting part is connected with a circle of the top of the main body surrounding ring, the main body surrounding ring is in annular elastic connection with the connecting base through the thin body circular ring connecting part and the shoulder edge connecting part, and a reinforced sealing lip buckle extending towards the inner side is further arranged at a lip opening of the bottom of the main body surrounding ring. The thickness of the thin circular ring connecting part on the peripheral side of the leather cup connecting seat is smaller, and only one annular unit is arranged, so that the connecting part has better dynamic correction performance and more stable springback supporting performance in the using process, bad deformation is reduced, and meanwhile the air tightness of the leather cup is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seals, in particular to an air pump leather cup with good air tightness. Background Technique

[0002] The air pump rubber leather cup is a rubber product, mainly used for the sealing and shock absorption of the repair instrument air pump. It plays an important role in mechanical equipment. Especially in various mechanical equipment, such as the repair instrument air pump, through its special processing technology and material selection, its effectiveness and durability in a specific working environment are ensured.

[0003] The structure of the air pump leather cup in the prior art is relatively simple. In actual use, it can meet relatively basic sealing purposes and sealing effects. However, in some special application requirements, such as in a high-frequency vibration environment, long-term use will cause the leather cup to leak air and have poor deformation, etc., thereby reducing the sealing effect of the leather cup and increasing the later maintenance and use costs. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. In this part, as well as in the abstract of the specification and the title of the utility model of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide an air pump leather cup with good air tightness to solve the problems in the prior art that in some special application requirements, such as in a high-frequency vibration environment, long-term use will cause the leather cup to leak air and have poor deformation, etc., thereby reducing the sealing effect of the leather cup and increasing the later maintenance and use costs as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an air pump leather cup with good air tightness, which includes the main bearing part of the air pump leather cup, namely the main body ring. At the center of the top of the main body ring, there is a connecting seat coaxial with it. The outer edge of the radial direction of the connecting seat has a thin circular ring connecting part. The outer edge of the radial direction of the thin circular ring connecting part has a shoulder connecting part. The outer edge of the shoulder connecting part is connected to the top circle of the main body ring. And the main body ring forms a circumferential elastic connection with the connecting seat through the thin circular ring connecting part and the shoulder connecting part. At the lip of the bottom of the main body ring, there is also a reinforced sealing lip buckle extending inward.

[0007] As a preferred scheme of an air pump leather cup with good air tightness according to the utility model, the thin circular ring connecting part has an arc-shaped concave circumferential structure. At the same time, the thickness of the thin circular ring connecting part is less than the thickness of the connecting seat, the shoulder connecting part and the main body ring.

[0008] As a preferred embodiment of the air pump leather cup with good airtightness of the present utility model, wherein the shoulder connection part has an arc structure, and the thin circular ring connection part and the main body surrounding ring are transitionally connected through this arc structure.

[0009] As a preferred embodiment of the air pump leather cup with good airtightness of the present utility model, wherein at least two adjacent annular grooves are provided in a radial circle at the bottom of the reinforced sealing lip buckle.

[0010] As a preferred embodiment of the air pump leather cup with good airtightness of the present utility model, wherein an annular skeleton is further provided in a radial circle on the inner side of the main body surrounding ring.

[0011] As a preferred embodiment of the air pump leather cup with good airtightness of the present utility model, wherein the inner side wall of the air pump leather cup is a frosted surface, and the outer side wall of the air pump leather cup is a smooth surface.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) For the air pump leather cup with good airtightness, through the structural optimization and detail design of the existing air pump leather cup, the leather cup maintains good sealing performance while ensuring that it can withstand pressure.

[0014] (2) For the air pump leather cup with good airtightness, compared with the traditional air pump leather cup, the thickness of the thin circular ring connection part on the periphery of the leather cup connection seat is smaller, and there is only one circumferential unit, so that the connection part has better dynamic correction and more stable springback support during use, reducing bad deformation while increasing the airtightness of the leather cup. At the same time, different from the leather cup lips with other straight edges and narrow surfaces, the reinforced sealing lip buckle has a larger lip contact surface, closer sealing contact points, and better lip following compensation, which can effectively prevent and reduce air leakage, and has a better sealing effect. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall external structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the semi-sectional structure of the leather cup of the present utility model;

[0017] Figure 3 It is a schematic diagram of the top view of the leather cup of the present utility model.

[0018] In the figure: 100, main body surrounding ring; 200, connection seat; 201, through hole; 300, thin circular ring connection part; 400, shoulder connection part; 500, reinforced sealing lip buckle; 501, annular groove; 600, annular skeleton. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0022] Figures 1 - 3 The figure shows the complete structure of the air pump cup with good airtightness of the utility model. Figures 1 - 3 , an air pump leather cup with good airtightness in this embodiment includes the main bearing part of the air pump leather cup, namely the main body ring 100, and a connecting seat 200 coaxial with it is provided at the center of the top of the main body ring 100, and a thin circular ring connecting part 300 is provided on the radial outer edge of the connecting seat 200, and a shoulder edge connecting part 400 is provided on the radial outer edge of the thin circular ring connecting part 300, and the outer edge of the shoulder edge connecting part 400 is connected to a circle on the top of the main body ring 100, and the main body ring 100 forms an annular elastic connection with the connecting seat 200 through the thin circular ring connecting part 300 and the shoulder edge connecting part 400, and the main body ring 100 also has a reinforced sealing lip buckle 500 extending inward at the bottom lip of the main body ring 100.

[0023] In this embodiment, the thin-body circular ring connecting portion 300 is an arc-shaped, concave annular structure, and the thickness of the thin-body circular ring connecting portion 300 is less than the thickness of the connecting seat 200, the shoulder connecting portion 400, and the main body surrounding ring 100. The shoulder connecting portion 400 is an arc-shaped structure, through which a transition connection is formed between the thin-body circular ring connecting portion 300 and the main body surrounding ring 100. Compared with a right-angle connection structure, the arc-shaped shoulder connecting portion 400 has a more linear and uniform rebound avoidance force, and cooperates with the thin-body circular ring connecting portion 300 to have a better agitation effect. Furthermore, in this embodiment, compared with a traditional air pump leather cup, the thin-body circular ring connecting portion 300 on the circumferential side of the leather cup connecting seat 200 is thinner and has only one annular unit, so that the connecting portion has better dynamic correction and more stable rebound support during use, while reducing adverse deformation and increasing the airtightness of the leather cup.

[0024] In this embodiment, at least two adjacent annular grooves 501 are provided in a circumferential direction at the bottom of the reinforced sealing lip buckle 500. Here, different from the lip edges of other straight-side narrow-surface leather cups, the reinforced sealing lip buckle 500 has a larger lip contact surface, a closer sealing contact point, better lip following compensation, can effectively prevent and reduce air leakage, and has a better sealing effect.

[0025] An annular skeleton 600 is further provided in a circumferential direction on the inner side of the main body ring 100. It can be understood that long-term use or sudden vibration will reduce the support effect of the main body ring 100. Therefore, in this embodiment, an annular skeleton 600 is provided inside the main body ring 100. The annular skeleton 600 can be made of materials with good mechanical fatigue performance such as metal materials and engineering plastic materials. In this way, when in use, the lip of the leather cup and the object can be tightly pressed together, and at the same time, adverse deformation of the ring can be prevented, indirectly improving the sealing effect.

[0026] Furthermore, the inner side wall of the air pump leather cup is a frosted surface, and the outer side wall of the air pump leather cup is a smooth surface. The purpose of such a design is that the frosted surface can form a higher contact friction between the leather cup and the injection molded part or the connecting body, improving the stable use, while the smooth surface makes the appearance of the air pump leather cup more beautiful and easy to clean.

[0027] Furthermore, a through hole 201 that penetrates up and down is provided at the axial center of the connecting seat 200. It can be understood that the through hole 201 is used for passing through connecting parts such as screws and bolts, so that the connecting seat 200 and the leather cup can be firmly connected to the object.

[0028] In summary, for an air pump leather cup with good airtightness in this embodiment, during the use of the air pump leather cup, in order to obtain better airtightness and use performance, compared with the traditional air pump leather cup, the thickness of the thin circular ring connecting part 300 on the periphery of the leather cup connecting seat 200 is smaller, and there is only one circumferential unit, so that the connecting part has better dynamic correction and more stable springback support during use, reducing adverse deformation while increasing the airtightness of the leather cup; at the same time, different from the lip edges of other straight-side narrow-surface leather cups, the reinforced sealing lip buckle 500 has a larger lip contact surface, a closer sealing contact point, better lip following compensation, can effectively prevent and reduce air leakage, and has a better sealing effect; and, an annular skeleton 600 is provided inside the body ring 100. The annular skeleton 600 can be made of materials with good mechanical fatigue performance such as metal materials and engineering plastic materials. In this way, when in use, the lip of the leather cup and the object can be tightly pressed together, and at the same time, adverse deformation of the ring can be prevented, indirectly improving the sealing effect.

[0029] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air pump leather cup with good airtightness, characterized in that, The main load-bearing part including the air pump leather cup, i.e., the main body circumferential ring (100), has a connecting seat (200) coaxial with it at the center of the top of the main body circumferential ring (100). The radially outer edge of the connecting seat (200) has a thin circular ring connecting part (300). The radially outer edge of the thin circular ring connecting part (300) has a shoulder connecting part (400). The outer edge of the shoulder connecting part (400) is connected to the top circle of the main body circumferential ring (100). And the main body circumferential ring (100) forms a circumferential elastic connection with the connecting seat (200) through the thin circular ring connecting part (300) and the shoulder connecting part (400). The bottom lip of the main body circumferential ring (100) also has a reinforced sealing lip buckle (500) extending inwards.

2. The air pump leather cup with good airtightness according to claim 1 is characterized in that: The thin circular ring connecting part (300) is in an arc-shaped concave circumferential structure. At the same time, the thickness of the thin circular ring connecting part (300) is less than the thickness of the connecting seat (200), the shoulder connecting part (400), and the main body circumferential ring (100).

3. The air pump leather cup with good air tightness according to claim 1 is characterized in that: The shoulder connecting part (400) is in an arc-shaped structure, and a transitional connection is formed between the thin circular ring connecting part (300) and the main body circumferential ring (100) through this arc-shaped structure.

4. The air pump leather cup with good airtightness according to claim 1, characterized in that: The bottom radial circle of the reinforced sealing lip buckle (500) has at least two adjacent annular grooves (501).

5. The air pump leather cup with good airtightness according to claim 1, characterized in that: The inner radial circle of the main body circumferential ring (100) also has an annular skeleton (600).

6. The air pump leather cup with good airtightness according to claim 1 is characterized in that: The inner side wall of the air pump leather cup is a frosted surface, and the outer side wall of the air pump leather cup is a smooth surface.

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