A novel rubber seal structure

By using a threaded mating structure and PTFE rubber composite material, the problem of easy wear and leakage of the sealing ring is solved, enabling quick replacement of the sealing ring and improving its wear resistance, thus ensuring the reliable sealing of the air pump.

CN224943870UActive Publication Date: 2026-11-06DONGGUAN XIANGTENG RUBBER PROD CO LTD
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Patent Information

Application Number
CN202522024531.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-20
Publication Date
2026-11-06
Estimated Expiration
2035-09-20

AI Technical Summary

Technical Problem

In existing technologies, the sealing rings of vehicle air pumps are prone to aging and wear, leading to air leakage and affecting the inflation effect.

Method used

The system employs a combination of threaded tapered and threaded arc groove structures, with threaded pins penetrating the fixed disc, sealing ring, and chassis, and threadedly connected to the positioning block, enabling quick disassembly and replacement of the sealing ring. The system also utilizes a composite structure of rubber and PTFE (polytetrafluoroethylene) to improve the wear resistance of the sealing ring.

Benefits of technology

It enables quick replacement and maintenance of the sealing ring, reduces displacement and deformation of the sealing ring during operation, extends service life, and ensures the stability and reliability of the sealing effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224943870U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of sealing technology and discloses a novel rubber sealing component structure, including an air pump body and an inflation / pressurization pipe. The inflation / pressurization pipe is fixedly connected to the bottom outer wall of the air pump body. An adjustment mechanism is provided on the air pump body, and an auxiliary mechanism is provided on the adjustment mechanism. The adjustment mechanism includes a threaded arc groove, which is formed on the top inner wall of the air pump body. A threaded cone is threadedly connected to the inner wall of the inner ring of the threaded arc groove. A hand support groove is formed on the top outer wall of the threaded cone, and an electronic telescopic rod of the air pump is slidably connected to the top inner wall of the threaded cone. In this utility model, the threaded engagement structure of the threaded cone and the threaded arc groove allows for rapid separation of the electronic telescopic rod of the air pump from the air pump body. Simultaneously, the design of the threaded pin penetrating the fixed plate, sealing ring, and base and threadedly connected to the positioning block allows for convenient disassembly of the fixed plate, sealing ring, and base.
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Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to a novel rubber sealing component structure. Background Technology

[0002] Car air pumps typically operate using atmospheric pressure through the rotation of a motor. When the motor is running at high speed, the valve of the pump is opened by atmospheric pressure, allowing air to enter the cylinder. When inflating the tires, the valve is closed by the air pressure inside the cylinder, and the air then enters the tires and other inflatable items.

[0003] A piston seal ring for an automotive air pump is disposed in an annular groove on the outer periphery of the piston, including an inner ring and an outer ring. The rear end of the inner ring is connected to the rear end of the outer ring, and a second annular groove with a forward opening is defined between the inner ring and the outer ring. The connection between the inner ring and the outer ring is a second sealing surface. The inner ring is accommodated in a first annular groove of the piston, and the front end of the outer ring protrudes from the front end of the inner ring and is disposed on the outer periphery of the piston. Its outer peripheral wall is in sealing contact with the inner peripheral wall of the cylinder. The sealing ring undergoes elastic deformation due to changes in air pressure, thereby controlling the opening and closing of the air intake port.

[0004] The above-mentioned device has the following defects: the sealing ring on the telescopic rod is prone to aging and wear after long-term use, which leads to air leakage when the sealing ring is used in subsequent inflation, affecting the inflation of tires and other inflatable items. Therefore, a new type of rubber sealing structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a novel rubber sealing structure, which aims to improve the problem that the sealing ring on the telescopic rod is prone to aging and wear after long-term use, leading to air leakage when the sealing ring is used in subsequent inflation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel rubber sealing component structure, comprising an air pump body and an inflation / pressurization pipe, wherein the inflation / pressurization pipe is fixedly connected to the bottom outer wall of the air pump body, the air pump body is provided with an adjustment mechanism, the adjustment mechanism is provided with an auxiliary mechanism, the adjustment mechanism includes a threaded arc groove, the threaded arc groove is formed on the top inner wall of the air pump body, the inner ring of the threaded arc groove is threadedly connected to a threaded cone, the top outer wall of the threaded cone is provided with a hand support groove, the top inner wall of the threaded cone is slidably connected to an air pump electronic telescopic rod, the side outer wall of the air pump electronic telescopic rod is fixedly connected to a positioning block, the top outer wall of the positioning block contacts a chassis, the top outer wall of the chassis contacts a sealing ring, the top outer wall of the sealing ring contacts a fixing plate, and the top inner wall of the fixing plate is threadedly connected to a threaded nail.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes an adjustment disc, which is fixedly connected to the top of the threaded nail. The top outer wall of the adjustment disc is provided with a directional mark, and the side outer wall of the chassis is fixedly connected with a reinforcing layer.

[0008] As a further description of the above technical solution: a frosted pad is fixedly connected to the top outer wall of the hand support groove, and an air pump telescopic rod is fixedly connected to the top of the air pump telescopic body.

[0009] As a further description of the above technical solution: the chassis and the fixed plate are adapted to each other in size, and the sealing ring is slidably connected to the inner side wall of the inflation and pressurization pipe.

[0010] As a further description of the above technical solution: the threaded pin penetrates the top inner wall of the sealing ring, the threaded pin penetrates the top inner wall of the chassis, and the threaded pin is threadedly connected to the top inner wall of the positioning block.

[0011] As a further description of the above technical solution: the top outer wall of the directional marker is fixedly connected with a display coating.

[0012] As a further description of the above technical solution: there are two reinforcing layers, and the two reinforcing layers are respectively fixedly connected to the top and bottom outer walls of the sealing ring.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the threaded structure of the threaded cone and the threaded arc groove enables the rapid separation of the electronic telescopic rod of the air pump from the air pump body. At the same time, the design of the threaded pin penetrating the fixed plate, the sealing ring and the base and being threadedly connected to the positioning block makes the fixed plate, the sealing ring and the base easy to disassemble, thereby realizing the rapid replacement and maintenance of the sealing ring, greatly simplifying the operation process and improving maintenance efficiency.

[0014] 2. In this utility model, the cooperation between the chassis and the fixed plate can form a stable clamp on the sealing ring, effectively reducing the displacement or deformation of the sealing ring caused by movement during operation, and ensuring a tight fit of the sealing surface. In addition, the reinforcing layers on the top and bottom sides of the sealing ring adopt a composite structure of rubber and PTFE, which significantly improves the wear resistance and structural strength of the sealing ring, extends its service life, and does not affect the sealing effect, further ensuring the reliable sealing of the air pump. Attached Figure Description

[0015] Figure 1 This is a schematic front view of the overall structure of a novel rubber sealing component proposed in this utility model; Figure 2 This is a split schematic diagram of a novel rubber sealing component structure proposed in this utility model; Figure 3 This is a schematic diagram of the dispensing mechanism for a novel rubber sealing component structure proposed in this utility model; Figure 4 This is a schematic diagram of the auxiliary mechanism of a novel rubber sealing component structure proposed in this utility model.

[0016] Legend: 1. Air pump body; 2. Inflation and pressurization hose; 3. Adjustment mechanism; 31. Threaded arc groove; 32. Threaded cone; 33. Hand support groove; 34. Electronic telescopic rod of air pump; 35. Positioning block; 36. Chassis; 37. Sealing ring; 38. Fixing plate; 39. Threaded nail; 4. Auxiliary mechanism; 41. Adjustment plate; 42. Pointing mark; 43. Reinforcing layer. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3 This utility model provides an embodiment of a novel rubber sealing structure, comprising an air pump body 1 and an inflation / pressurization pipe 2. The inflation / pressurization pipe 2 is fixedly connected to the bottom outer wall of the air pump body 1. An adjustment mechanism 3 is provided on the air pump body 1, and an auxiliary mechanism 4 is provided on the adjustment mechanism 3. The adjustment mechanism 3 includes a threaded arc groove 31, which is formed on the top inner wall of the air pump body 1. A threaded cone 32 is threadedly connected to the inner wall of the inner ring of the threaded arc groove 31. Through threaded engagement with the threaded arc groove 31, it can screw in and out, thereby controlling the connection between the air pump electronic telescopic rod 34 and the air pump body 1. In this configuration, the top outer wall of the threaded cone 32 has a hand support groove 33, and the top inner wall of the threaded cone 32 is slidably connected to an air pump electronic telescopic rod 34. The side outer wall of the air pump electronic telescopic rod 34 is fixedly connected to a positioning block 35, the top outer wall of the positioning block 35 contacts a base 36, the top outer wall of the base 36 contacts a sealing ring 37, the top outer wall of the sealing ring 37 contacts a fixing plate 38, and the top inner wall of the fixing plate 38 is threadedly connected to a threaded nail 39, which passes through the fixing plate 38, the sealing ring 37 and the base 36 and is threadedly connected to the positioning block 35, thus tightly fixing these components together and ensuring the stability of the overall structure.

[0019] Reference Figures 2-4A frosted pad is fixedly connected to the top outer wall of the hand support groove 33. The top of the air pump electronic telescopic rod 34 is fixedly connected to the air pump telescopic body, which serves as the power source component of the air pump and provides power for the telescopic movement of the air pump electronic telescopic rod 34 to ensure the realization of the air pump function. The chassis 36 and the fixed plate 38 are matched in size. The sealing ring 37 is slidably connected to the inner side wall of the inflation and pressurization pipe 2. The threaded nail 39 penetrates the top inner wall of the sealing ring 37 and the top inner wall of the chassis 36. The threaded nail 39 is threadedly connected to the top inner wall of the positioning block 35. A reinforcing layer 43 is fixedly connected to the outer side wall of the chassis 36.

[0020] Reference Figures 3-4 The auxiliary mechanism 4 includes an adjustment disc 41, which is fixedly connected to the top of the threaded nail 39. The top outer wall of the adjustment disc 41 is provided with a directional mark 42 to indicate the tightening direction or position of the threaded nail 39, providing visual guidance for the operator and improving the accuracy and efficiency of the operation. The top outer wall of the directional mark 42 is fixedly connected with a display coating to enhance the visibility of the directional mark 42, making it easier for the operator to observe the mark and improving the convenience of the operation. There are two reinforcing layers 43, which are fixedly connected to the top and bottom outer walls of the sealing ring 37 respectively. The reinforcing layer 43 adopts a rubber and PTFE polytetrafluoroethylene composite structure, which can significantly improve the wear resistance and structural strength of the sealing ring 37, extend the service life of the sealing ring 37, and at the same time, it does not affect its sealing effect and plays a certain role in waterproofing, preventing external water stains from entering the interior of the inflation and pressurization tube 2.

[0021] Working principle: By gripping the handle groove 33 and rotating the threaded cone 32, the threaded cone 32 rotates and separates from the inner wall of the threaded arc groove 31. Then, the air pump electronic telescopic rod 34 is pulled to separate from the inner wall of the air pump body 1. Then, the threaded nail 39 is twisted with a tool to separate from the fixed plate 38. Then, the fixed plate 38, sealing ring 37 and base plate 36 are removed from the outer wall of the air pump electronic telescopic rod 34 in sequence, so that the sealing ring 37 can be easily replaced and maintained. At the same time, the base plate 36 and the fixed plate 38 firmly fix the sealing ring 37, reducing the displacement or deformation of the sealing ring 37 when it moves upward. In addition, the rubber PTFE polytetrafluoroethylene composite structure of the reinforcing layer 43 increases the wear resistance of the sealing ring 37.

[0022] 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 novel rubber sealing structure, comprising an air pump body (1) and an inflation / pressurization pipe (2), characterized in that: The inflation and pressurization pipe (2) is fixedly connected to the bottom outer wall of the air pump body (1). The air pump body (1) is provided with a dispensing mechanism (3) and an auxiliary mechanism (4) is provided on the dispensing mechanism (3). The dispensing mechanism (3) includes a threaded arc groove (31), which is opened on the top inner wall of the air pump body (1). The inner ring of the threaded arc groove (31) is threadedly connected to a threaded cone (32). The top outer wall of the threaded cone (32) is provided with a hand support groove (33). The top inner wall of the threaded cone (32) is slidably connected to an air pump electronic telescopic rod (34). The side outer wall of the air pump electronic telescopic rod (34) is fixedly connected to a positioning block (35). The top outer wall of the positioning block (35) contacts a chassis (36). The top outer wall of the chassis (36) contacts a sealing ring (37). The top outer wall of the sealing ring (37) contacts a fixed plate (38). The top inner wall of the fixed plate (38) is threadedly connected to a threaded nail (39).

2. The novel rubber sealing component structure according to claim 1, characterized in that: The auxiliary mechanism (4) includes an adjustment plate (41), which is fixedly connected to the top of the threaded nail (39). The top outer wall of the adjustment plate (41) is provided with a pointing mark (42), and the side outer wall of the chassis (36) is fixedly connected with a reinforcing layer (43).

3. The novel rubber sealing component structure according to claim 1, characterized in that: The top outer wall of the hand support groove (33) is fixedly connected with a frosted pad, and the top of the air pump electronic telescopic rod (34) is fixedly connected with the air pump telescopic body.

4. The novel rubber sealing component structure according to claim 1, characterized in that: The chassis (36) is sized to match the fixed plate (38), and the sealing ring (37) is slidably connected to the inner side wall of the inflation and pressurization pipe (2).

5. The novel rubber sealing component structure according to claim 1, characterized in that: The threaded pin (39) penetrates the top inner wall of the sealing ring (37), the threaded pin (39) penetrates the top inner wall of the chassis (36), and the threaded pin (39) is threadedly connected to the top inner wall of the positioning block (35).

6. The novel rubber sealing component structure according to claim 2, characterized in that: The top outer wall of the directional marker (42) is fixedly connected with a display coating.

7. The novel rubber sealing component structure according to claim 2, characterized in that: There are two reinforcing layers (43), and the two reinforcing layers (43) are fixedly connected to the outer walls of the top and bottom sides of the sealing ring (37).