Dustproof oil seal convenient to disassemble

Abstract

The utility model relates to the technical field of oil seals, and discloses a dust-proof oil seal convenient to disassemble, which comprises sealing rubber, an oil seal framework is embedded in the sealing rubber, a placing groove is arranged on the inner side of the sealing rubber, and a spring is arranged on the inner side of the placing groove. A sealing lip located on one side of the spring is integrally formed on the inner side of the sealing rubber. One side of the sealing rubber is provided with a connecting assembly for disassembly and assembly, and one side of the connecting assembly is provided with a dustproof assembly; the connecting assembly comprises a supporting frame and a connecting cover, threads are arranged on the inner wall of the supporting frame, a screwdriver is inserted into one side of the connecting rib to tilt up or rub the connecting cover, a screw is connected with the supporting frame in a threaded mode and pulled to disassemble the oil seal, the whole process is relatively simple and direct, complex tools or steps are not needed, and therefore the working efficiency is improved, and in the disassembling process, the labor intensity of workers is reduced. The screw rod is far away from the rotating shaft, so that scratches, abrasion or other forms of physical damage possibly caused to the rotating shaft in a traditional disassembly and assembly method are avoided, and the surface integrity and functions of the rotating shaft are protected.

Description

Technical Field

[0001] This utility model relates to the field of oil seal technology, specifically a dustproof oil seal that is easy to disassemble. Background Technology

[0002] Oil seal is a common term for general sealing components; simply put, it's a seal for lubricating oil. It's a mechanical component used to seal grease, isolating lubricated parts from power-generating parts in transmission systems to prevent lubricating oil leakage. Oil seals are used for both static and dynamic sealing.

[0003] In mechanical equipment, oil seals are crucial components that prevent lubricating oil leakage and the intrusion of external impurities such as dust and moisture. Traditional oil seals often require complex tools, such as hammers and wrenches, for disassembly and assembly. This is not only cumbersome but also prone to causing physical damage such as scratches and wear to the shaft, affecting its surface integrity and function. Therefore, a dustproof oil seal that is easy to disassemble is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a dustproof oil seal that is easy to disassemble, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dustproof oil seal that is easy to disassemble, comprising a sealing rubber, wherein an oil seal skeleton is embedded inside the sealing rubber, a placement groove is provided on the inner side of the sealing rubber, and a spring is installed on the inner side of the placement groove;

[0006] The sealing rubber has an integrally formed sealing lip located on one side of the spring.

[0007] One side of the sealing rubber is provided with a connecting component for disassembly and assembly, and one side of the connecting component is provided with a dustproof component.

[0008] The connecting assembly includes a support frame and a connecting cover. The inner wall of the support frame is provided with threads, and one end of the support frame is provided with a guide slope. The outer side of the connecting cover is integrally formed with a connecting rib.

[0009] Preferably, the sealing rubber has two limiting grooves inside, and the support frame is located inside the limiting grooves.

[0010] Preferably, the outer side of the connecting rib is integrally formed on one side of the sealing rubber, and the shape of the connecting cover is elliptical.

[0011] Preferably, the dustproof component includes an airbag, the airbag having an internal air storage chamber, and the outer side of the airbag being connected to the inner wall of a sealing rubber.

[0012] Preferably, the airbag described above has a first dustproof lip, a second dustproof lip, and a third dustproof lip integrally formed on its outer side.

[0013] Preferably, the first dustproof lip, the second dustproof lip, and the third dustproof lip are arranged in sequence, with the first dustproof lip located on the outer side.

[0014] Preferably, one side of the support frame is fixed to one side of the oil seal skeleton.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0016] 1. By inserting a screwdriver into one side of the connecting rib and prying or breaking the connecting cover, the oil seal can be removed by using the threaded connection between the screw and the support frame and pulling it. The whole process is relatively simple and direct, without the need for complicated tools or steps, thus improving work efficiency. During the disassembly process, the screw is far away from the shaft, avoiding scratches, wear or other forms of physical damage to the shaft that may be caused by traditional disassembly and assembly methods, thus protecting the surface integrity and function of the shaft.

[0017] Second, through the multiple protections of the first dustproof lip, the second dustproof lip, and the third dustproof lip, not only are the layers of dust protection increased, but also the gas propulsion from the air storage chamber inside the airbag makes the dustproof lip fit more closely to the outside of the rotating shaft, reducing the intrusion of dust and impurities and improving the dustproof effect of the oil seal. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first-view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the main cross-sectional structure of the dustproof lip of this utility model;

[0023] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure at point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Sealing rubber; 2. Dustproof component; 21. First dustproof lip; 22. Second dustproof lip; 23. Third dustproof lip; 24. Air storage chamber; 25. Airbag; 3. Connecting component; 31. Connecting cover; 32. Support frame; 33. Thread; 34. Limiting groove; 35. Guide slope; 36. Connecting rib; 4. Oil seal skeleton; 5. Spring; 6. Placement groove; 7. Sealing lip. Detailed Implementation

[0025] 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.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0027] Example

[0028] Please see Figure 1-5 This utility model provides a technical solution: a dustproof oil seal that is easy to disassemble, including a sealing rubber 1, an oil seal skeleton 4 embedded inside the sealing rubber 1, a placement groove 6 opened on the inner side of the sealing rubber 1, a spring 5 installed inside the placement groove 6, the sealing rubber 1, the dustproof component 2, the oil seal skeleton 4, the spring 5, the placement groove 6 and the sealing lip 7 together form a dustproof oil seal; the sealing lip 7 located on one side of the spring 5 is integrally formed on the inner side of the sealing rubber 1.

[0029] One side of the sealing rubber 1 is provided with a connecting component 3 for disassembly and assembly, and one side of the connecting component 3 is provided with a dustproof component 2;

[0030] The connecting component 3 includes a support frame 32 and a connecting cover 31. The inner wall of the support frame 32 is provided with threads 33, and one end of the support frame 32 is provided with a guide slope 35. The outer side of the connecting cover 31 is integrally formed with a connecting rib 36. The connecting rib 36 is part of the connecting cover 31 and is integrally formed with the outer side of the connecting cover 31. Both the connecting rib 36 and the connecting cover 31 are made of rubber.

[0031] The sealing rubber 1 has two limiting grooves 34 inside. Using a screwdriver, insert it into one side of the connecting rib 36 at the connection between the connecting cover 31 and the sealing rubber 1. Use the screwdriver to pry up or break the connecting cover 31. Insert the screw into the inside of the limiting groove 34. The support frame 32 is located inside the limiting groove 34. The outer side of the connecting rib 36 is integrally formed on one side of the sealing rubber 1. The connecting cover 31 is elliptical in shape. One side of the support frame 32 is fixed to one side of the oil seal skeleton 4, so that the screw is threadedly connected to the support frame 32. Thread the two screws to the support frame 32 in sequence, and then pull the two screws to one side at the same time. At this time, the oil seal can be easily removed.

[0032] The dustproof component 2 includes an airbag 25, which has an air storage chamber 24 inside. The outer side of the airbag 25 is connected to the inner sidewall of the sealing rubber 1. The outer side of the airbag 25 is integrally formed with a first dustproof lip 21, a second dustproof lip 22, and a third dustproof lip 23. The first dustproof lip 21, the second dustproof lip 22, and the third dustproof lip 23 are arranged in sequence. The first dustproof lip 21 is located on the outer side. The first dustproof lip 21, the second dustproof lip 22, and the third dustproof lip 23 shield the dust on the outer side, reducing the intrusion of dust and impurities.

[0033] Working principle: The oil seal needs to be installed on the outside of the shaft to isolate the lubricated parts in the transmission components from the external environment and prevent the lubricating oil from leaking. At this time, the shaft is inserted into the inside of the first dustproof lip 21, the second dustproof lip 22, the third dustproof lip 23 and the sealing lip 7, and the sealing rubber 1 of the oil seal is inserted into the mounting groove of the mechanical equipment.

[0034] When the oil seal needs to be disassembled, simply insert a screwdriver into the connecting rib 36 at the connection between the connecting cover 31 and the sealing rubber 1, pry up or break the connecting cover 31 with the screwdriver, insert the screw into the inner side of the limiting groove 34, and under the action of the guide slope 35, make the screw threadedly connected to the support frame 32. Thread the two screws to the support frame 32 in sequence, and then pull the two screws to one side at the same time. At this time, the oil seal can be easily removed. During disassembly, the screws are far away from the shaft, so they will not damage the shaft.

[0035] When the oil seal is in use, the first dustproof lip 21, the second dustproof lip 22, and the third dustproof lip 23, along with the sealing lip 7, contact the outer side of the rotating shaft. The spring 5 provides elasticity to ensure that the sealing lip 7 fits tightly against the rotating shaft, thereby preventing lubricating oil leakage. At the same time, the first dustproof lip 21, the second dustproof lip 22, and the third dustproof lip 23 shield the outer side from dust. Under the push of the gas in the air storage chamber 24 inside the airbag 25, the first dustproof lip 21, the second dustproof lip 22, and the third dustproof lip 23 fit against the outer side of the rotating shaft, increasing the number of dustproof lips and making the oil seal more effective at preventing dust.

[0036] In summary, the oil seal can be removed by inserting a screwdriver into one side of the connecting rib 36 to pry up or break the connecting cover 31, and then using the threaded connection between the screw and the support frame 32 to pull it off. The whole process is relatively simple and direct, without the need for complicated tools or steps, thus improving work efficiency. During the disassembly process, the screw is far away from the shaft, avoiding scratches, wear or other forms of physical damage to the shaft that may be caused by traditional disassembly and assembly methods, thus protecting the surface integrity and function of the shaft.

[0037] The multiple layers of protection provided by the first dustproof lip 21, the second dustproof lip 22, and the third dustproof lip 23 not only increase the level of dust protection, but also, through the gas propulsion of the air storage chamber 24 inside the airbag 25, make the dustproof lip fit more closely to the outside of the rotating shaft, reducing the intrusion of dust and impurities and improving the dustproof effect of the oil seal.

[0038] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A dustproof oil seal that is easy to disassemble, comprising sealing rubber (1), characterized in that: An oil seal skeleton (4) is embedded inside the sealing rubber (1), and a placement groove (6) is opened on the inner side of the sealing rubber (1). A spring (5) is installed on the inner side of the placement groove (6). The sealing rubber (1) has an integrally formed sealing lip (7) located on one side of the spring (5); The sealing rubber (1) is provided with a connecting component (3) for disassembly and assembly on one side, and a dustproof component (2) is provided on one side of the connecting component (3); The connecting component (3) includes a support frame (32) and a connecting cover (31). The inner wall of the support frame (32) is provided with threads (33), and one end of the support frame (32) is provided with a guide slope (35). The outer side of the connecting cover (31) is integrally formed with a connecting rib (36).

2. The dustproof oil seal that is easy to disassemble according to claim 1, characterized in that: The sealing rubber (1) has two limiting grooves (34) inside, and the support frame (32) is located inside the limiting grooves (34).

3. The dustproof oil seal that is easy to disassemble according to claim 2, characterized in that: The outer side of the connecting rib (36) is integrally formed on one side of the sealing rubber (1), and the connecting cover (31) is elliptical in shape.

4. The dustproof oil seal that is easy to disassemble according to claim 1, characterized in that: The dustproof component (2) includes an airbag (25), which has an air storage chamber (24) inside. The outer side of the airbag (25) is connected to the inner wall of the sealing rubber (1).

5. The easily removable dustproof oil seal according to claim 4, characterized in that: The airbag (25) has a first dustproof lip (21), a second dustproof lip (22) and a third dustproof lip (23) integrally formed on its outer side.

6. The easily removable dustproof oil seal according to claim 5, characterized in that: The first dustproof lip (21), the second dustproof lip (22) and the third dustproof lip (23) are arranged in sequence, with the first dustproof lip (21) located on the outside.

7. The easily removable dustproof oil seal according to claim 2, characterized in that: One side of the support frame (32) is fixed to one side of the oil seal frame (4).

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