Rubber grommet for automobile brake hose
An automobile brake hose and rubber technology, applied in the field of automobile parts, can solve the problems of cracking, low friction force, performance decay, etc., and achieve the effects of preventing sliding, improving friction force, and increasing contact force.
Active Publication Date: 2019-02-12
上海大陆汽车制动系统销售有限公司 +1
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Problems solved by technology
[0003] But in actual work, the brake hose will be affected by the external force of the steering and the up and down movement of the suspension. In order to prevent the slip between the rubber grommet and the brake hose, the usual design is: 1. Glue is added between the hose and the rubber grommet to fix it, but this design will be affected by temperature during long-term use, causing performance degradation and sliding against each other; 2. It is molded on the brake hose, but this design is not suitable for long-term use , will also cause aging and slide each other; 3. The inner hole diameter of the rubber grommet is smaller than the diameter of the brake hose. Friction force is generated between them, but the friction force is not easy to control and relatively small. If the diameter difference is too large, it is not easy to assemble between the brake hose and the rubber grommet and it is easy to cause cracking after assembly. If the diameter difference is too small, the friction force will be too large. Small, can't play a fixed role
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[0026] The present invention will be further described below according to the accompanying drawings.
[0027] Such as Figure 1 to Figure 3 As shown, the rubber grommet body 1 is provided with an inner hole 2 in the transverse axial direction, and the outer edge of the inner hole 2 is provided with a number of radial and axial grooves 3, and the radial and axial grooves 3 are in the form of arc-shaped groove, and the width of the radial and axial grooves 3 is 2 to 4 mm, and the depth of the radial and axial grooves 3 is 0 to 1 mm; the rubber grommet body 1, inner hole 2 and the radial and axial grooves 3 are integrally made of rubber.
[0028] There are at least three groups of radial and axial grooves 3 , and at least three groups are evenly distributed on the inner hole 2 .
[0029] The opening angle at both ends of the inner hole 2 is 30°.
[0030] Such as Figure 4 As shown, the force analysis of the traditional grommet is friction force f=reaction force N×fus; in the ...
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The invention relates to the technical field of automobile parts, in particular to an automobile brake hose rubber grommet. The automobile brake hose rubber grommet comprises a rubber grommet body and is characterized in that an inner hole is transversely and axially formed in the rubber grommet body in a penetrating mode, a plurality of radial and axial grooves are evenly formed in the outer edge of the inner hole and are arc-shaped grooves, the width of the radial and axial grooves ranges from 2 mm to 4 mm, and the depth of the radial and axial grooves ranges from 0 mm to 1 mm; the rubber grommet body, the inner hole and the radial and axial grooves are integrally manufactured through rubber. Compared with the prior art, the groove design is added to the interior of the rubber grommet, and through the design of the grooves, action force is converted into beneficial constraining force, so that contact force is increased, the function of improving friction force of the contact face is achieved, and the phenomenon that a brake hose and the rubber grommet slide is prevented.
Description
technical field [0001] The invention relates to the technical field of automobile parts, in particular to an automobile brake hose rubber grommet. Background technique [0002] A hydraulic brake system is usually installed in a modern automobile brake system, and the brake hose is a channel for fast transmission of brake pressure. Because the brake hose is installed on the chassis and suspension of the car to realize the static and dynamic connection of the brake pipeline, in order to prevent the brake hose from moving according to the design track, avoiding interference with other body parts or deviation of the movement track from being close to the heat source of the engine If the damage of the moving hose leads to the failure of the brake, it is necessary to install a rubber grommet on the brake hose to fix the brake hose to a certain position of the car component to control the movement track of the brake hose. [0003] But in actual work, the brake hose will be affecte...
Claims
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IPC IPC(8): B60T17/04
CPCB60T17/046
Inventor 李辰龙余锦勋尹海庭
Owner 上海大陆汽车制动系统销售有限公司