Novel dustproof guide combined sealing ring

Abstract

The utility model provides a novel dustproof guide combined type sealing ring which comprises an O-shaped ring and a dustproof guide ring, an O-shaped ring containing groove is formed in the outer diameter position of the dustproof guide ring, the O-shaped ring is placed in the O-shaped ring containing groove, a dustproof lip is arranged at the inner diameter position of the dustproof guide ring, and the dustproof guide ring is arranged in the dustproof lip. An arc-shaped groove is formed in the inner diameter of the joint of the dustproof guide ring and the dustproof lip. In conclusion, the dustproof guide combined type sealing ring can be suitable for harsh working environments, has good abrasion resistance and dustproof performance, and meanwhile has the advantages of being easy to install and the like.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and in particular to a novel dustproof and guide-type combined sealing ring. Background Technology

[0002] Dust seals are reciprocating seals installed on piston rods to prevent external dust from entering the hydraulic cylinder. Common dust seals cannot withstand pressure, meaning they do not have a sealing function; their sole purpose is dust prevention, and they must be used in conjunction with other seals.

[0003] In existing designs, the dust seal and guide need to be designed with separate grooves, which increases the length of the guide sleeve and raises the economic cost. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a novel dustproof guide combined sealing ring, including an O-ring and a dustproof guide ring. The outer diameter of the dustproof guide ring is provided with an O-ring placement groove, and the O-ring is placed in the O-ring placement groove. The inner diameter of the dustproof guide ring is provided with a dustproof lip, and the inner diameter at the connection between the dustproof guide ring and the dustproof lip is provided with an arc-shaped groove.

[0005] Preferably, the dustproof guide combination sealing ring is made of polyoxymethylene material.

[0006] Preferably, the thickness of the dustproof lip is less than the thickness of the dustproof guide ring.

[0007] This invention provides a novel dustproof guide combined sealing ring. When installed in a groove, the O-ring is subjected to pressure from both sides, pressing against the bottom diameter of the groove and the outer diameter of the dustproof guide ring, thus achieving a certain dustproof sealing effect. This prevents external dust from entering the guide sleeve through the bottom diameter of the groove. Furthermore, this dustproof guide combined sealing ring makes installation easier and provides excellent dustproof performance. In summary, this dustproof guide combined sealing ring is suitable for harsh working environments, possesses excellent wear resistance and dustproof performance, and is easy to install. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of a novel dustproof guide combined sealing ring according to this utility model. Figure 1 ;

[0009] Figure 2 This is a schematic diagram of the structure of a novel dustproof guide combined sealing ring according to this utility model. Figure 2 ;

[0010] Figure 3 This is a cross-sectional view of a novel dustproof guide combined sealing ring according to this utility model;

[0011] The components include: 1. O-ring; 2. Dustproof guide ring; 3. O-ring placement groove; 4. Dustproof lip; 5. Arc-shaped groove. Detailed Implementation

[0012] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0013] Specific Implementation Example 1, such as Figure 1-3 As shown, a novel dustproof and guide-type combined sealing ring includes an O-ring 1 and a dustproof guide ring 2. The outer diameter of the dustproof guide ring 2 is provided with an O-ring placement groove 3, and the O-ring 1 is placed in the O-ring placement groove 3. The inner diameter of the dustproof guide ring 2 is provided with a dustproof lip 4, and the inner diameter of the connection between the dustproof guide ring 2 and the dustproof lip 4 is provided with an arc-shaped groove 5. The dustproof and guide-type combined sealing ring is made of polyoxymethylene material, and the thickness of the dustproof lip 4 is less than the thickness of the dustproof guide ring 2.

[0014] This invention provides a novel dustproof guide combined sealing ring. When the dustproof guide combined sealing ring is installed in the groove, the O-ring 1 is subjected to extrusion forces from both sides, respectively pressing against the bottom diameter of the groove and the outer diameter of the dustproof guide ring 2, thus achieving a certain dustproof sealing effect and preventing external dust from entering the guide sleeve through the bottom diameter of the groove. Simultaneously, this dustproof guide combined sealing ring makes installation easier and provides good dustproof performance. In summary, this dustproof guide combined sealing ring is suitable for harsh working environments, possesses excellent wear resistance and dustproof performance, and is also easy to install.

[0015] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel dustproof guide combined sealing ring, comprising an O-ring (1) and a dustproof guide ring (2), characterized in that: The dustproof guide ring (2) has an O-ring placement groove (3) on its outer diameter, and the O-ring (1) is placed in the O-ring placement groove (3). The dustproof guide ring (2) has a dustproof lip (4) on its inner diameter, and an arc-shaped groove (5) is provided on the inner diameter of the connection between the dustproof guide ring (2) and the dustproof lip (4).

2. The novel dustproof guide combined sealing ring according to claim 1, characterized in that: The dustproof guide combination sealing ring is made of polyoxymethylene material.

3. The novel dustproof guide combined sealing ring according to claim 1, characterized in that: The thickness of the dustproof lip (4) is less than the thickness of the dustproof guide ring (2).

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