Automobile oil seal cover structure with dustproof structure

Abstract

The utility model discloses an automobile oil seal cover structure with a dustproof structure, which comprises an oil seal structure, a first dustproof structure and a second dustproof structure, the first dustproof structure and the second dustproof structure are arranged on the oil seal structure, the oil seal structure comprises an oil seal sleeve, the first dustproof structure comprises a first mounting lantern ring, and the second dustproof structure comprises a second mounting lantern ring. The first mounting lantern ring and the oil seal sleeve are coaxially arranged, the second mounting lantern ring is arranged at one end of the oil seal sleeve, the first mounting lantern ring is connected with the second mounting lantern ring, two dustproof structures are combined, external dust is blown away by the dust removal tuyere, and meanwhile, the design of the sealing air bag and the baffle ring ensures that the system is not polluted during normal operation; due to the design of the spring and the top sleeve in the oil sealing sleeve, the top sleeve can be adjusted in real time when being stressed, and good sealing fit between the top sleeve and the oil sealing sleeve is always kept.

Description

Technical Field

[0001] This utility model relates to the field of automotive oil seal cap technology, specifically an automotive oil seal cap structure with a dustproof structure. Background Technology

[0002] Automotive oil seal caps are crucial sealing components in automotive powertrain systems. Their primary function is to prevent oil leakage and the intrusion of external dust, moisture, and contaminants, ensuring the normal operation of the engine and transmission system. However, traditional oil seal caps generally employ simple sealing structures, typically relying on elastic materials for tight edge contact. While this design can achieve effective oil sealing in the short term, the high temperature, high pressure, and vibration of the long-term operating environment cause the oil seal material to age, deform, and its sealing ability to decline. This results in poorer dustproof performance, necessitating frequent replacement, increasing maintenance costs, and shortening the overall lifespan of the oil seal. Utility Model Content

[0003] In order to overcome the shortcomings of existing technical solutions, this utility model provides an automotive oil seal cap structure with a dustproof structure, which can effectively solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A dustproof automotive oil seal cap structure includes an oil seal structure, a first dustproof structure, and a second dustproof structure disposed on the oil seal structure. The oil seal structure includes an oil seal sleeve. The first dustproof structure includes a first mounting ring, and the second dustproof structure includes a second mounting ring. The first mounting ring is coaxially arranged with the oil seal sleeve, and the second mounting ring is disposed at one end of the oil seal sleeve. The first mounting ring and the second mounting ring are connected. The first mounting ring has several dust removal nozzles on the side near the second mounting ring. The second mounting ring has a sealing airbag and a dustproof baffle at its port. The dustproof baffle is tapered inward toward the second mounting ring. The second mounting ring also has a mounting groove for fixing the sealing airbag.

[0006] As a further description of the above technical solution, the oil seal sleeve is provided with a movable top sleeve, the top sleeve is connected to the oil seal sleeve, and several springs are provided at the connection between the top sleeve and the oil seal sleeve. The top sleeve moves along the axial direction of the oil seal sleeve by means of the springs, and a dustproof lip is also provided at one end of the top sleeve.

[0007] As a further description of the above technical solution, the surface of the oil seal sleeve is provided with several first sealing grooves, the oil seal sleeve and the second mounting ring are integrally formed, and the inner wall of the second mounting ring is provided with several second sealing grooves.

[0008] As a further description of the above technical solution, the first mounting collar is provided with an air duct for connecting the dust removal nozzle, and the first mounting collar is also provided with an air valve for connecting the air duct.

[0009] As a further description of the above technical solution, the surfaces of the first mounting collar, the oil seal sleeve and the second mounting collar are all provided with a polymer coating, and the first mounting collar and the second mounting collar are detachably connected.

[0010] As a further description of the above technical solution, the second mounting collar is trumpet-shaped, and the side of the second mounting collar near the first mounting collar has a smooth inclined surface, which is flush with the dust removal nozzle.

[0011] As a further description of the above technical solution, each of the springs is distributed in a circumferential array along the oil seal sleeve.

[0012] As a further description of the above technical solution, the dust removal nozzles are distributed in a circumferential array along the first mounting collar.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The present invention provides a dustproof automotive oil seal cap structure, which has at least one of the following beneficial effects during use:

[0015] Combining two dustproof structures, external dust is blown away by the dust extraction nozzles, while the design of the sealing airbag and retaining ring ensures that the system is not contaminated during normal operation. The spring and top sleeve design inside the oil seal sleeve allow the top sleeve to adjust in real time under stress, ensuring a good seal with the oil seal sleeve at all times. This reduces seal failure caused by wear or aging. A polymer coating is applied to the surfaces of the first mounting ring, oil seal sleeve, and second mounting ring, improving wear resistance and corrosion resistance, and extending service life. The detachable connection design of the first and second mounting rings facilitates maintenance and replacement, reducing overall maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automotive oil seal cap with a dustproof structure according to the present invention;

[0017] Figure 2 This is a schematic diagram of the first side view of a dustproof automotive oil seal cap structure according to the present invention.

[0018] Figure 3 This is a schematic diagram of the second side structure of an automotive oil seal cap structure with a dustproof structure according to the present invention;

[0019] Figure 4This is a perspective structural diagram of an automotive oil seal cap structure with a dustproof structure according to the present invention;

[0020] Figure 5 This is a partial cross-sectional schematic diagram of an automotive oil seal cap structure with a dustproof structure according to the present invention.

[0021] Numbering on the map:

[0022] 1. Oil seal structure; 101. Oil seal sleeve; 102. First sealing groove; 103. Top sleeve; 104. Dustproof lip; 105. Spring; 2. First dustproof structure; 201. First mounting collar; 202. Air valve; 203. Air duct; 204. Dust removal nozzle; 3. Second dustproof structure; 301. Second mounting collar; 302. Sealing airbag; 303. Mounting groove; 304. Second sealing groove; 305. Dustproof retaining ring. Detailed Implementation

[0023] 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.

[0024] like Figure 1-5 As shown, this utility model provides a car oil seal cap structure with a dustproof structure, including an oil seal structure 1, a first dustproof structure 2 and a second dustproof structure 3 disposed on the oil seal structure 1. The oil seal structure 1 includes an oil seal sleeve 101. The first dustproof structure 2 includes a first mounting ring 201. The second dustproof structure 3 includes a second mounting ring 301. The first mounting ring 201 is coaxially disposed with the oil seal sleeve 101. The second mounting ring 301 is disposed at one end of the oil seal sleeve 101. The first mounting ring 201 and the second mounting ring 301 are connected. The first mounting ring 201 is provided with a plurality of dust removal nozzles 204 on the side near the second mounting ring 301. The second mounting ring 301 is provided with a sealing airbag 302 and a dustproof baffle ring 305 at the port. The dustproof baffle ring 305 is provided to narrow inward toward the second mounting ring 301. The second mounting ring 301 is also provided with a mounting groove 303 for fixing the sealing airbag 302.

[0025] In this embodiment, the oil seal sleeve 101 is responsible for sealing the oil, preventing leakage, and improving the reliability of the system. The movable nature of the top sleeve 103 and the function of the spring 105 allow the dust lip 104 to press against the part that needs to be sealed.

[0026] The first dustproof structure 2 in this embodiment includes a first mounting collar 201 and dust removal nozzles 204. The airflow ejected through these nozzles can effectively remove dust and impurities around the oil seal, preventing them from entering the oil seal and maintaining its sealing performance. The second dustproof structure 3 has a sealing airbag 302 and a dustproof ring 305 inside the second mounting collar 301, which can further enhance the dustproof performance. The sealing airbag 302 enhances the overall sealing effect, while the dustproof ring 305 effectively prevents dust from entering from the outside.

[0027] Combining two dustproof structures, external dust is blown away by the dust removal nozzle 204. Simultaneously, the design of the sealing airbag 302 and the retaining ring ensures the system is not contaminated during normal operation. The design of the spring 105 and the top sleeve 103 within the oil seal sleeve 101 allows the top sleeve 103 to adjust in real time under stress, ensuring a consistently good seal with the oil seal sleeve 101. This reduces seal failure due to wear or aging. A polymer coating is applied to the surfaces of the first mounting ring 201, the oil seal sleeve 101, and the second mounting ring 301, improving wear resistance and corrosion resistance, and extending service life. The detachable connection design of the first mounting ring 201 and the second mounting ring 301 facilitates maintenance and replacement, reducing overall maintenance costs.

[0028] Furthermore, the oil seal sleeve 101 is provided with a movable top sleeve 103, which is connected to the oil seal sleeve 101. Several springs 105 are provided at the connection between the top sleeve 103 and the oil seal sleeve 101. The top sleeve 103 moves along the axial direction of the oil seal sleeve 101 via the springs 105. One end of the top sleeve 103 is also provided with a dustproof lip 104.

[0029] The top sleeve 103 is a movable component that connects within the oil seal sleeve 101 and moves along the axial direction. This design allows the top sleeve 103 to effectively adapt to shaft movement and vibration under external pressure, temperature changes, or changes in operating conditions, maintaining a good sealing condition. A dust lip 104 is provided at one end of the top sleeve 103, a design that further enhances sealing performance. During movement, the dust lip 104 contacts the oil seal sleeve 101, forming a physical barrier that effectively prevents dust, moisture, and other external impurities from entering the oil seal.

[0030] Furthermore, the surface of the oil seal sleeve 101 is provided with several first sealing grooves 102, the oil seal sleeve 101 is integrally formed with the second mounting collar 301, and the inner wall of the second mounting collar 301 is provided with several second sealing grooves 304.

[0031] The first sealing groove 102 is provided on the surface of the oil seal sleeve 101. Its main function is to provide a groove for the seal, so that the sealing material (such as rubber) can be better embedded in it. This design can ensure that the sealing material maintains a stable shape and position when subjected to working pressure.

[0032] The second sealing groove 304 is located on the inner wall of the second mounting collar 301. Its design purpose is to mate with the first sealing groove 102, ensuring a dual sealing effect. The second sealing groove 304 can also accommodate sealing material, providing an additional sealing surface to enhance the sealing effect. The material of the sealing member can form an effective seal within the sealing groove, preventing oil leakage and limiting the intrusion of external impurities.

[0033] Furthermore, the first mounting collar 201 is provided with an air duct 203 that connects to the dust removal nozzle 204, and the first mounting collar 201 is also provided with an air valve 202 that connects to the air duct 203.

[0034] The integral design of the oil seal sleeve 101 and the second mounting ring 301 eliminates potential leakage points at the connection, reduces possible gaps and interface defects between components, thereby improving the overall structural stability. The integral design facilitates production and assembly, simplifies configuration, reduces manufacturing and assembly costs, and also enhances the durability of the sealing structure.

[0035] Furthermore, the surfaces of the first mounting collar 201, the oil seal sleeve 101, and the second mounting collar 301 are all coated with a polymer coating, and the first mounting collar 201 and the second mounting collar 301 are detachably connected.

[0036] Detachable connections allow for easy disassembly when maintenance or component replacement is needed. Detachable connections also make equipment assembly and adjustment more flexible, reducing maintenance time and labor intensity.

[0037] Furthermore, the second mounting collar 301 is trumpet-shaped, and the side of the second mounting collar 301 near the first mounting collar 201 has a smooth inclined surface, which is flush with the dust removal nozzle 204.

[0038] The second mounting collar 301 is flared, and the inclined surface formed between this structure and the first mounting collar 201 allows dust to remain on the inclined surface. By being flush with the dust removal nozzle 204, this inclined surface can effectively guide airflow to the dust removal area and improve the dust removal effect.

[0039] Furthermore, the springs 105 are arranged in a circumferential array along the oil seal sleeve 101. The springs 105 provide continuous support between the top sleeve 103 and the oil seal sleeve 101, ensuring that the top sleeve 103 maintains tight contact with the oil seal sleeve 101 under different load conditions.

[0040] Furthermore, the dust removal nozzles 204 are distributed in a circumferential array along the first mounting collar 201.

[0041] The dust removal nozzles 204 are evenly distributed in an array along the circumference of the first mounting ring 201. This layout achieves comprehensive coverage and uniform airflow distribution, resulting in balanced dust removal efficiency across the entire target area. By providing directional airflow, the dust removal nozzles 204 effectively drive airflow, thereby carrying away dust, debris, and other particulate matter from the target area. The array distribution ensures that each area receives a certain amount of airflow, thus improving the dust removal effect.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A car oil seal cap structure with a dustproof feature, characterized in that: The device includes an oil seal structure, a first dustproof structure disposed on the oil seal structure, and a second dustproof structure. The oil seal structure includes an oil seal sleeve. The first dustproof structure includes a first mounting ring, and the second dustproof structure includes a second mounting ring. The first mounting ring is coaxially arranged with the oil seal sleeve. The second mounting ring is disposed at one end of the oil seal sleeve. The first mounting ring and the second mounting ring are connected. The first mounting ring has several dust removal nozzles on the side near the second mounting ring. The second mounting ring has a sealing airbag and a dustproof baffle at its port. The dustproof baffle is tapered inward toward the inside of the second mounting ring. The second mounting ring also has a mounting groove for fixing the sealing airbag.

2. The automotive oil seal cap structure with a dustproof structure according to claim 1, characterized in that: The oil seal sleeve is provided with a movable top sleeve, which is connected to the oil seal sleeve. Several springs are provided at the connection between the top sleeve and the oil seal sleeve. The top sleeve moves along the axis of the oil seal sleeve by means of the springs. One end of the top sleeve is also provided with a dustproof lip.

3. The automotive oil seal cap structure with a dustproof structure according to claim 1, characterized in that: The surface of the oil seal sleeve is provided with several first sealing grooves, the oil seal sleeve and the second mounting ring are integrally formed, and the inner wall of the second mounting ring is provided with several second sealing grooves.

4. The automotive oil seal cap structure with a dustproof structure according to claim 1, characterized in that: The first mounting collar is provided with an air duct for connecting to the dust removal nozzle, and the first mounting collar is also provided with an air valve for connecting to the air duct.

5. The automotive oil seal cap structure with a dustproof structure according to claim 1, characterized in that: The surfaces of the first mounting collar, the oil seal sleeve, and the second mounting collar are all coated with a polymer coating, and the first mounting collar and the second mounting collar are detachably connected.

6. The automotive oil seal cap structure with a dustproof structure according to claim 1, characterized in that: The second mounting collar is trumpet-shaped, and the side of the second mounting collar near the first mounting collar has a smooth inclined surface, which is flush with the dust removal nozzle.

7. The automotive oil seal cap structure with a dustproof structure according to claim 2, characterized in that: The springs are arranged in a circumferential array along the oil seal sleeve.

8. A dustproof automotive oil seal cap structure according to claim 1, 4, or 6, characterized in that: The dust removal nozzles are distributed in a circumferential array along the first mounting collar.

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