Double-lip framework oil seal capable of preventing grease in sealing cavity from leaking

Abstract

The utility model provides a double-lip framework oil seal capable of preventing grease in a sealing cavity from leaking, which relates to the technical field of oil seals and comprises an oil seal component, a reinforced sealing ring and a clamping component. According to the utility model, when the engine is waterproof and dustproof, in order to prevent liquid and dust from entering the engine, the oil seal assembly can be arranged between the engine and the rotating shaft, and in order to further enhance the waterproof and dustproof effects, the reinforcing sealing ring is arranged on the engine; and the clamping assembly is arranged on the oil seal assembly, and the reinforcing sealing ring is clamped through the clamping assembly, so that the reinforcing sealing ring and the oil seal assembly can be tightly attached, and the waterproof and dustproof effects can be improved.

Description

Technical Field

[0001] This utility model relates to the field of oil seal technology, and in particular to a double-lip skeleton oil seal that prevents grease from leaking out of the sealing cavity. Background Technology

[0002] To prevent oil leakage, oil seals are installed on the shaft extending from the engine block of automotive piston engines and transmissions. A common method is to install one oil seal, which is mostly made of an elastomer. An oil seal installed at the front of the engine is called a front oil seal, and an oil seal installed at the rear of the engine, or the output end, is called a rear oil seal.

[0003] In existing technologies, most oil seals still allow a small amount of liquid or dust from the air to enter the device during use, which makes the electrical components inside the device extremely vulnerable to damage. Utility Model Content

[0004] This utility model mainly provides a double-lip skeleton oil seal with high sealing performance to prevent grease leakage from the sealing cavity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a double-lip skeleton oil seal that prevents grease leakage from the sealing cavity, comprising: an oil seal assembly, wherein a snap-fit ​​assembly is installed on the oil seal assembly, and a reinforcing sealing ring is provided on the snap-fit ​​assembly, wherein the reinforcing sealing ring and the snap-fit ​​assembly are snap-fitted together;

[0006] The snap-fit ​​assembly includes a deformable part and a snap-fit ​​part. The deformable part is connected to the oil seal assembly and is configured as a rectangular structure. The snap-fit ​​part is connected to the deformable part and is configured as a right-angled triangular structure.

[0007] Preferably, the oil seal assembly includes a skeleton and two outer rubber rings, both of which are mounted on the outer surface of the skeleton.

[0008] Preferably, the oil seal assembly further includes two inner rubber rings, both of which are installed on the inner surface of the skeleton.

[0009] Preferably, the reinforcing sealing ring is installed on the engine, and the outer diameter of the reinforcing sealing ring is larger than the outer diameter of the outer rubber ring.

[0010] Preferably, the right-angled end of the snap-fit ​​portion snaps into the reinforcing sealing ring.

[0011] Preferably, the deformable part is deformable, and the snap-fit ​​part contracts or expands as the deformable part deforms.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the oil seal assembly can initially prevent dust or liquid in the air from entering the engine and thus causing damage to the internal components of the engine.

[0014] 2. In this utility model, by strengthening the cooperation between the sealing ring and the snap-fit ​​component, the waterproof and dustproof effect of the oil seal component can be further enhanced, thereby preventing dust and liquid from entering the engine. Attached Figure Description

[0015] Figure 1 This utility model provides a structural schematic diagram of a double-lip skeleton oil seal that prevents grease leakage from the sealing cavity;

[0016] Figure 2 A partial structural diagram of a double-lip skeleton oil seal for preventing grease leakage from the sealing cavity is provided for this utility model.

[0017] Figure 3 This invention presents an exploded structural diagram of a double-lip skeleton oil seal that prevents grease leakage from the sealing cavity.

[0018] Figure 4 This invention presents a cross-sectional structural diagram of a double-lip skeleton oil seal that prevents grease leakage from the sealing cavity.

[0019] Legend: 1. Oil seal assembly; 11. Skeleton; 12. Outer rubber ring; 13. Inner rubber ring; 2. Reinforcing sealing ring; 3. Snap-fit ​​assembly; 31. Deformation part; 32. Snap-fit ​​part. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a double-lip skeleton oil seal that prevents grease leakage from the sealing cavity, comprising: an oil seal assembly 1, a snap-fit ​​assembly 3 installed on the oil seal assembly 1, a reinforcing sealing ring 2 provided on the snap-fit ​​assembly 3, and the reinforcing sealing ring 2 and the snap-fit ​​assembly 3 snap-fit ​​together.

[0023] The snap-fit ​​assembly 3 includes a deformable part 31 and a snap-fit ​​part 32. The deformable part 31 is connected to the oil seal assembly 1 and is configured as a rectangular structure. The snap-fit ​​part 32 is connected to the deformable part 31 and is configured as a right-angled triangular structure.

[0024] Specifically, when sealing the engine connection holes, in order to improve the sealing performance and prevent external liquids or dust from entering the engine, an oil seal assembly 1 can be installed between the rotating shaft and the engine. The oil seal assembly 1 can initially provide waterproofing and dustproofing. To improve the protective performance, a snap-fit ​​assembly 3 can be installed on the oil seal assembly 1, and a reinforcing sealing ring 2 can be installed on the engine. The snap-fit ​​assembly 3 can snap the reinforcing sealing ring 2, thereby enabling the oil seal assembly 1 and the reinforcing sealing ring 2 to be stably connected.

[0025] like Figures 1-4 As shown, the oil seal assembly 1 includes a skeleton 11 and an outer rubber ring 12. Two outer rubber rings 12 are provided, and both outer rubber rings 12 are installed on the outer surface of the skeleton 11. The oil seal assembly 1 also includes an inner rubber ring 13. Two inner rubber rings 13 are provided, and both inner rubber rings 13 are installed on the inner surface of the skeleton 11.

[0026] Specifically, in actual use, in order to carry out preliminary waterproofing and dustproofing operations, two outer rubber rings 12 and two inner rubber rings 13 are provided on the frame 11. The outer rubber rings 12 and inner rubber rings 13 can provide preliminary waterproofing and dustproofing to the inner and outer surfaces of the frame 11.

[0027] like Figures 1-4 As shown, the reinforcing sealing ring 2 is installed on the engine, and the outer diameter of the reinforcing sealing ring 2 is larger than the outer diameter of the outer rubber ring 12.

[0028] Specifically, in order to enhance the waterproof and dustproof effect of the reinforcing sealing ring 2, it is necessary to fit the reinforcing sealing ring 2 tightly with the oil seal assembly 1, and set the diameter of the reinforcing sealing ring 2 to be larger than the outer diameter of the outer rubber ring 12, so as to enhance the waterproof and dustproof effect of the oil seal assembly 1 through the reinforcing sealing ring 2.

[0029] like Figures 1-4 As shown, the right-angle end of the snap-fit ​​part 32 snaps into the reinforcing sealing ring 2; the deformable part 31 is deformable, and the snap-fit ​​part 32 shrinks or expands with the deformation of the deformable part 31.

[0030] Specifically, when engaging the reinforcing sealing ring 2, the right-angled end of the engaging part 32 contacts and presses the reinforcing sealing ring 2, thereby enabling the reinforcing sealing ring 2 to stably fit with the oil seal assembly 1. Furthermore, in order to facilitate the replacement of the reinforcing sealing ring 2 or the oil seal assembly 1 during subsequent use, the position of the engaging part 32 can be changed by pressing the deformable part 31, thereby releasing the engaging part 32 from engaging the reinforcing sealing ring 2 and allowing for replacement.

[0031] The usage and working principle of this device are as follows: When waterproofing and dustproofing the engine, in order to prevent liquids and dust from entering the engine, an oil seal assembly 1 can be installed between the engine and the rotating shaft. In order to further enhance the waterproof and dustproof effect, a reinforcing sealing ring 2 is installed on the engine, and a snap-fit ​​assembly 3 is installed on the oil seal assembly 1. The reinforcing sealing ring 2 is snapped together by the snap-fit ​​assembly 3, so that the reinforcing sealing ring 2 and the oil seal assembly 1 can fit tightly together, thereby improving the waterproof and dustproof effect.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A double-lip skeleton oil seal for preventing grease leakage from the sealing cavity, characterized in that, include: An oil seal assembly (1) is provided with a snap-fit ​​assembly (3), and a reinforcing sealing ring (2) is provided on the snap-fit ​​assembly (3). The reinforcing sealing ring (2) and the snap-fit ​​assembly (3) are snap-fitted together. The snap-fit ​​assembly (3) includes a deformable part (31) and a snap-fit ​​part (32). The deformable part (31) is connected to the oil seal assembly (1) and is configured as a rectangular structure. The snap-fit ​​part (32) is connected to the deformable part (31) and is configured as a right-angled triangular structure.

2. The double-lip skeleton oil seal for preventing grease leakage from the sealing cavity according to claim 1, characterized in that: The oil seal assembly (1) includes a skeleton (11) and an outer rubber ring (12). There are two outer rubber rings (12), and both outer rubber rings (12) are installed on the outer surface of the skeleton (11).

3. The double-lip skeleton oil seal for preventing grease leakage from the sealing cavity according to claim 2, characterized in that: The oil seal assembly (1) also includes an inner rubber ring (13), and there are two inner rubber rings (13), both of which are installed on the inner surface of the skeleton (11).

4. The double-lip skeleton oil seal for preventing grease leakage from the sealing cavity according to claim 2, characterized in that: The reinforcing sealing ring (2) is installed on the engine, and the outer diameter of the reinforcing sealing ring (2) is larger than the outer diameter of the outer rubber ring (12).

5. The double-lip skeleton oil seal for preventing grease leakage from the sealing cavity according to claim 4, characterized in that: The right-angle end of the snap-fit ​​part (32) snaps into the reinforcing sealing ring (2).

6. The double-lip skeleton oil seal for preventing grease leakage from the sealing cavity according to claim 1, characterized in that: The deformable part (31) is deformable, and the snap-fit ​​part (32) shrinks or expands as the deformable part (31) deforms.

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