Follow-up oil seal

Abstract

The utility model discloses a follow-up type oil seal which comprises a framework and rubber, the rubber is installed outside the framework, an inner cavity of the rubber protrudes upwards to form a deformable waist, a sealing face is formed on an inner ring of the rubber, and the position of the sealing face is concaved inwards to form a springback oil groove. According to the follow-up oil seal, the deformable waists and the springback oil grooves are designed, so that the oil seal can better adapt to deformation of a shaft when being pressed, and the stable sealing effect is kept. And the sealing surface adopts a stepped groove design, so that the contact area of the sealing surface is increased, and the sealing effect is further improved. Due to the design of the oil seal lip part, the elasticity of the oil seal is enhanced, so that the oil seal can be better rebounded under pressure, and the sealing effect is kept. The design of the notch formed in the lower portion of the rubber increases the elasticity of the rubber, and the adaptive capacity of the oil seal to shaft deformation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seals, in particular to a follower type oil seal. Background Art

[0002] Oil seals are crucial components for preventing lubricant leakage in mechanical equipment. Traditional oil seal structures often suffer from poor sealing effectiveness and adaptability, particularly in complex and dynamically changing operating environments. Therefore, a new oil seal structure is needed to improve sealing effectiveness and enhance adaptability to complex operating conditions. Utility Model Content

[0003] The purpose of the present invention is to solve the problems of the above-mentioned background technology and to provide a follower type oil seal.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A follower oil seal comprises a skeleton and rubber. The skeleton is provided with rubber. The inner cavity of the rubber bulges upward to form a deformable waist. The inner ring of the rubber forms a sealing surface. The sealing surface is recessed inward to form a rebound oil groove.

[0006] As a further solution of the present invention: the sealing surface is provided with grooves in a stepped manner from bottom to top.

[0007] As a further solution of the present invention, the stepped grooves are inclined outwards from bottom to top.

[0008] As a further solution of the present invention: one side of the rebound oil groove protrudes outward to form a platform-shaped oil seal lip.

[0009] As a further solution of the present invention: the skeleton is specifically an iron shell skeleton.

[0010] As a further solution of the present invention: a through notch is provided on the lower portion of the rubber near the frame.

[0011] The beneficial effects of this utility model are as follows: The follower oil seal of this utility model, through the design of a deformable waist and rebound oil groove, can better adapt to shaft deformation when under pressure, thereby maintaining a stable sealing effect. The sealing surface adopts a stepped groove design, which increases the contact area of the sealing surface and further improves the sealing effect. The design of the oil seal lip enhances the elasticity of the oil seal, allowing it to better rebound under pressure and maintain the sealing effect. The notch design on the lower part of the rubber increases the elasticity of the rubber and improves the oil seal's adaptability to shaft deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0014] In the figure: 1. Skeleton; 2. Rubber; 3. Deformable waist; 4. Sealing surface; 5. Rebound oil groove. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] For example 1, please refer to Figure 1 As shown, the utility model is a follower type oil seal, including a skeleton 1 and a rubber 2, the rubber 2 is installed on the outside of the skeleton 1, the inner cavity of the rubber 2 bulges upward to form a deformable waist 3, the inner ring of the rubber 2 forms a sealing surface 4, and the sealing surface 4 is concave inward to form a rebound oil groove 5.

[0017] For example 2, please refer to Figure 1 As shown, the utility model is a follower type oil seal, comprising a skeleton 1 and a rubber 2, wherein the rubber 2 is mounted on the outside of the skeleton 1, the inner cavity of the rubber 2 bulges upward to form a deformable waist 3, the inner ring of the rubber 2 forms a sealing surface 4, and the sealing surface 4 is provided with grooves in a stepped manner from bottom to top, and the stepped grooves are inclined outwards in sequence from bottom to top.

[0018] The sealing surface 4 is inwardly recessed to form a rebound oil groove 5 .

[0019] For example three, please refer to Figure 1 As shown, the utility model is a follower type oil seal, comprising a skeleton 1 and a rubber 2, wherein the rubber 2 is mounted on the outside of the skeleton 1, the inner cavity of the rubber 2 bulges upward to form a deformable waist 3, the inner ring of the rubber 2 forms a sealing surface 4, and the sealing surface 4 is provided with grooves in a stepped manner from bottom to top, and the stepped grooves are inclined outwards in sequence from bottom to top.

[0020] The sealing surface 4 is inwardly recessed to form a rebound oil groove 5 .

[0021] In another embodiment, one side of the rebound oil groove 5 protrudes outward to form a platform-shaped oil sealing lip.

[0022] In another embodiment, the skeleton 1 is specifically an iron shell skeleton.

[0023] In another embodiment, a through notch is formed at the lower portion of the rubber 2 near the frame 1 .

[0024] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A follower type oil seal, characterized in that: The invention comprises a skeleton (1) and rubber (2), wherein the skeleton (1) is externally mounted with the rubber (2), the inner cavity of the rubber (2) bulges upward to form a deformable waist (3), the inner ring of the rubber (2) forms a sealing surface (4), and the sealing surface (4) is inwardly recessed to form a rebound oil groove (5).

2. A follower type oil seal according to claim 1, characterized in that: The sealing surface (4) is provided with grooves in a stepped manner from bottom to top.

3. A follower type oil seal according to claim 2, characterized in that: The stepped grooves are inclined outwards from bottom to top.

4. A follower type oil seal according to claim 1, characterized in that: One side of the rebound oil groove (5) protrudes outwards to form a platform-shaped oil seal lip.

5. The follower type oil seal according to claim 1, characterized in that: The skeleton (1) is specifically an iron shell skeleton.

6. A follower type oil seal according to claim 1, characterized in that: A through notch is provided at the lower portion of the rubber (2) near the frame (1).

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