Wear-resistant rubber sealing ring

Abstract

A wear-resistant rubber sealing ring comprises a sealing mechanism and a clamping mechanism used for fixing the sealing mechanism, the clamping mechanism comprises a middle clamping ring, a groove with an arc-shaped cross section is formed in the outer side of the middle clamping ring in the circumferential direction, a sealing ring is detachably connected to the middle clamping ring in a clamped mode, an upper clamping ring is fixed to the top end of the middle clamping ring, and a lower clamping ring is fixed to the bottom end of the middle clamping ring. An upper backing ring with the L-shaped cross section is detachably connected to the upper clamping ring in a clamped mode, and a lower backing ring symmetrical to the upper backing ring is connected to the lower clamping ring in a clamped mode. The sealing ring is simple in structure and convenient to use, and the sealing ring can be conveniently installed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing rings, in particular to a wear-resistant rubber sealing ring. Background Art

[0002] A rubber sealing ring is an annular cover composed of one or more parts, which is fixed on a ring or washer of a bearing and contacts with another ring or washer or forms a narrow labyrinth gap to prevent lubricating oil leakage and foreign objects from intruding. In modern industry, various types of rubber sealing rings have been widely used. The existing rubber sealing rings have poor wear resistance during use, which makes the sealing rings prone to friction damage during use. In addition, the existing sealing rings are inconvenient to assemble and replace, resulting in a short service life of the sealing rings, which greatly reduces the practicality of the sealing rings and is not conducive to the sealing of the sealing rings. Utility Model Content

[0003] In order to solve the technical problems of the existing sealing rings being inconvenient to assemble and easy to wear, the utility model provides a wear-resistant rubber sealing ring, comprising a sealing mechanism and a clamping mechanism for fixing the sealing mechanism, the clamping mechanism comprising a middle clamping ring, the outer circumference of the middle clamping ring being provided with a groove having a circular arc cross section, the middle clamping ring being detachably clamped with the sealing ring, and when in use, the middle clamping ring is first clamped to the pipe, and then the sealing ring is clamped into the groove on the middle clamping ring, which is convenient for assembly and disassembly. An upper clamping ring is fixed to the top end of the middle clamping ring, a lower clamping ring is fixed to the bottom end of the middle clamping ring, an upper gasket having an L-shaped cross section is detachably clamped to the upper clamping ring, and a lower gasket symmetrically arranged with the upper gasket is clamped to the lower clamping ring. The arrangement of the upper gasket and the lower gasket protects the sealing ring and can increase the service life of the sealing ring.

[0004] Preferably, the outer side of the sealing ring is arc-shaped.

[0005] Preferably, the outer sides of the upper gasket and the lower gasket are both arc-shaped.

[0006] Preferably, the widest parts of the diameters of the upper gasket and the lower gasket are slightly larger than the outer diameter of the sealing ring.

[0007] Preferably, the upper snap ring, the lower snap ring, the middle snap ring, the upper gasket, the lower gasket and the sealing ring are all made of nitrile rubber.

[0008] The above solution has the following advantages:

[0009] The setting of the middle clamping ring and the sealing ring is that when in use, the middle clamping ring is first clamped onto the pipe, and then the sealing ring is clamped into the groove on the middle clamping ring. The middle clamping ring and the sealing ring are easier to deform and are convenient for disassembly and assembly; the setting of the upper gasket and the lower gasket protects the sealing ring, can reduce the wear of the sealing ring, and can increase the service life of the sealing ring; nitrile rubber has excellent oil resistance, high wear resistance, good heat resistance, and strong adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0012] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0013] Figure 4 for Figure 3 AA cross-sectional structure diagram.

[0014] Figure numerals: 1, sealing mechanism; 2, clamping mechanism; 11, sealing ring; 12, upper gasket; 13, lower gasket; 21, middle clamping ring; 22, groove; 23, upper clamping ring; 24, lower clamping ring. DETAILED DESCRIPTION

[0015] like Figure 1-4 As shown, a wear-resistant rubber sealing ring includes a sealing mechanism 1 and a clamping mechanism 2 for fixing the sealing mechanism 1. The clamping mechanism 2 includes a middle clamping ring 21. The outer circumference of the middle clamping ring 21 is provided with a groove 22 with an arc-shaped cross section. The middle clamping ring 21 is detachably clamped to the sealing ring 11. When in use, the middle clamping ring 21 is first clamped to the pipe, and then the sealing ring 11 is clamped into the groove 22 on the middle clamping ring 21, which facilitates disassembly and assembly. An upper clamping ring 23 is fixed to the top of the middle clamping ring 21, and a lower clamping ring 24 is fixed to the bottom of the middle clamping ring 21. The upper clamping ring 23 is detachably clamped to an upper gasket 12 with an L-shaped cross section. The lower clamping ring 24 is clamped to a lower gasket 13 symmetrically arranged with the upper gasket 12. The arrangement of the upper gasket 12 and the lower gasket 13 protects the sealing ring 11 and can increase the service life of the sealing ring 11.

[0016] Preferably, the outer side of the sealing ring 11 is in an arc shape.

[0017] Preferably, outer sides of the upper gasket 12 and the lower gasket 13 are both arc-shaped.

[0018] Preferably, the widest parts of the diameters of the upper gasket 12 and the lower gasket 13 are slightly larger than the outer diameter of the sealing ring 11 .

[0019] Preferably, the upper snap ring 23 , the lower snap ring 24 , the middle snap ring 21 , the upper gasket 12 , the lower gasket 13 and the sealing ring 11 are all made of nitrile rubber.

[0020] Usage process:

[0021] When the present invention is in use, the middle clamping ring 21 is first clamped onto the pipe, and then the sealing ring 11 is sleeved into the groove of the middle clamping ring 21, and then the lower gasket 13 is sleeved on the lower clamping ring 24, and the upper gasket 12 is sleeved on the upper clamping ring 23. The upper gasket 12 and the lower gasket 13 protect the sealing ring 11.

[0022] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A wear-resistant rubber sealing ring, comprising a sealing mechanism and a clamping mechanism for fixing the sealing mechanism, characterized in that: The clamping mechanism includes a middle clamping ring, the outer circumference of which is provided with a groove with an arc-shaped cross section, a sealing ring that is detachably clamped on the middle clamping ring, an upper clamping ring fixed on the top end of the middle clamping ring, a lower clamping ring fixed on the bottom end of the middle clamping ring, and an upper gasket with an L-shaped cross section that is detachably clamped on the upper clamping ring, and a lower gasket symmetrically arranged with the upper gasket that is clamped on the lower clamping ring.

2. The wear-resistant rubber sealing ring according to claim 1, characterized in that: The outer side of the sealing ring is in an arc shape.

3. The wear-resistant rubber sealing ring according to claim 2, characterized in that: The outer sides of the upper gasket and the lower gasket are both arc-shaped.

4. The wear-resistant rubber sealing ring according to claim 3, characterized in that: The widest parts of the diameters of the upper gasket and the lower gasket are slightly larger than the outer diameter of the sealing ring.

5. A wear-resistant rubber sealing ring according to any one of claims 1 to 4, characterized in that: The upper snap ring, the lower snap ring, the middle snap ring, the upper gasket, the lower gasket and the sealing ring are all made of nitrile rubber.

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