Outer cylinder of automobile shock absorber

Abstract

The utility model provides an automobile shock absorber outer cylinder which comprises a cylinder body, a front end cover and a hanging ring, the front end cover, the cylinder body and the hanging ring are fixedly connected in sequence, and a mounting cavity is formed in the cylinder body; a heat dissipation cavity is formed in the cylinder body, the heat dissipation cavity is an annular cavity and is connected with the cylinder body into a whole, the heat dissipation cavity is filled with cooling liquid, a plurality of heat dissipation grooves are formed in the peripheral wall of the cylinder body, the number of the heat dissipation grooves is multiple, the heat dissipation grooves are formed in the two sides of the cylinder body respectively, and in the working process, the heat dissipation grooves are evenly distributed in the cylinder body. Due to the fact that high temperature generated by friction of the piston assembly in the cylinder body is absorbed by cooling liquid in the heat dissipation cavity, the temperature in the cylinder body is reduced, stable operation of the shock absorber is guaranteed, the multiple sets of heat dissipation grooves are formed in the outer surfaces of the two ends of the cylinder body, the heat dissipation area of the cylinder body is increased, and the shock absorption effect of the shock absorber cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an outer cylinder of an automobile shock absorber. Background Art

[0002] Automobile shock absorbers are mainly used to suppress the vibration caused by the rebound of the spring after shock absorption and the impact from the road surface. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road surface, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump.

[0003] The existing Chinese patent document CN201721593081.6 discloses a cylindrical boss shock absorber outer cylinder, comprising a hollow shock absorber outer cylinder body, a cylindrical boss for mounting a spring disk is provided on the upper part of the shock absorber outer cylinder body, the mounting hole of the spring disk and the cylindrical boss are interference fit, the cylindrical boss comprises a cylindrical matching section matching the mounting hole of the spring disk, a conical transition section is symmetrically provided on both sides of the cylindrical matching section, the large diameter end of the conical transition section is connected to the cylindrical matching section, and the small diameter end of the conical transition section is connected to the shock absorber outer cylinder body. The utility model not only reduces the labor intensity of the operator, but also reduces the installation cost of the spring disk, and avoids the shock absorber outer cylinder from being damaged during the installation process.

[0004] However, the above patent has certain defects when in use. The continuous use of the shock absorber will cause the metal outer tube to heat up due to friction, which will affect the use effect of the shock absorber. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an outer cylinder of an automobile shock absorber.

[0006] The utility model is implemented by the following technical solutions:

[0007] An outer cylinder of an automobile shock absorber comprises a cylinder body, a front end cover and a hanging ring, wherein the front end cover, the cylinder body and the hanging ring are fixedly connected in sequence, and a mounting cavity is arranged inside the cylinder body;

[0008] A heat dissipation cavity is arranged inside the barrel body, and the heat dissipation cavity is an annular cavity connected with the barrel body as a whole, and the heat dissipation cavity is filled with cooling liquid.

[0009] A plurality of heat dissipation grooves are arranged on the outer peripheral wall of the barrel body. The plurality of heat dissipation grooves are arranged on both sides of the barrel body respectively.

[0010] The lifting ring is fixedly connected to the cylinder body, a one-way valve is arranged on the side wall of the lifting ring, and the one-way valve is communicated with the inside of the installation cavity.

[0011] A rubber sleeve is arranged inside the lifting ring, and a sealing ring is arranged inside the connection between the lifting ring and the cylinder body.

[0012] The front end cover is provided with a mounting hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. During operation, the high temperature generated by the friction of the piston assembly inside the cylinder is absorbed by the coolant in the heat dissipation cavity, thereby reducing the temperature inside the cylinder and ensuring the stable operation of the shock absorber. In addition, multiple groups of heat dissipation grooves are set on the outer surfaces of both ends of the cylinder to increase the heat dissipation area of ​​the cylinder without affecting the shock absorption effect of the shock absorber.

[0015] 2. The lifting ring is fixedly connected to the cylinder body. A one-way valve is installed on the lifting ring. The set gas can be filled into the one-way valve. The operation is simple. If adjustment or maintenance is required later, the air can be manually released from the one-way valve, and then the lifting ring can be removed. There is no damage to the shock absorber and the service life of the device is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0018] Figure 3 yes Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] In the figure: 1, barrel; 11, heat dissipation groove; 12, heat dissipation cavity; 13, installation cavity; 2, front end cover; 21, installation hole; 3, lifting ring; 31, one-way valve; 32, rubber sleeve; 4, sealing ring. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3 As shown, an outer cylinder of a car shock absorber comprises a cylinder body 1, a front end cover 2 and a hanging ring 3, wherein the front end cover 2, the cylinder body 1 and the hanging ring 3 are fixedly connected in sequence, and a mounting cavity 13 is provided inside the cylinder body 1;

[0023] A heat dissipation cavity 12 is provided inside the barrel body 1 . The heat dissipation cavity 12 is an annular cavity connected to the barrel body 1 as a whole. The heat dissipation cavity 12 is filled with coolant.

[0024] A plurality of heat dissipation grooves 11 are provided on the outer peripheral wall of the barrel body 1 . The plurality of heat dissipation grooves 11 are provided and are respectively arranged on both sides of the barrel body 1 . The heat dissipation grooves 11 increase the heat dissipation area and improve the heat dissipation effect.

[0025] The lifting ring 3 is fixedly connected to the cylinder body 1, and a one-way valve 31 is provided on the side wall of the lifting ring 3. The one-way valve 31 is communicated with the inside of the installation cavity 13. After the internal parts of the conventional shock absorber are assembled, a special air-filled riveting welding machine is required to fill the cylinder with gas at a specific pressure from the bottom end, and riveting welding is performed simultaneously after the gas is filled. After riveting welding, if the later production needs to be adjusted or the subsequent customer needs maintenance or modification, the shock absorber needs to be destroyed. However, this structure only needs to flush and release the gas from the one-way valve 31 without damaging the shock absorber.

[0026] A rubber sleeve 32 is provided inside the lifting ring 3, and a sealing ring 4 is provided inside the connection between the lifting ring 3 and the barrel body 1. The sealing is performed by the sealing ring 4 to further improve the sealing effect.

[0027] The front end cover 2 is provided with a mounting hole 21 .

[0028] The working principle of the utility model is: when in use, the piston assembly inside the barrel 1 generates high temperature due to constant friction, and the coolant in the heat dissipation cavity 12 inside the barrel 1 absorbs heat, thereby reducing the temperature inside the barrel 1 and ensuring the stable operation of the shock absorber;

[0029] In addition, multiple groups of heat dissipation grooves 11 are arranged on the outer surfaces of both ends of the barrel 1, which increases the heat dissipation area of ​​the barrel 1 without affecting the shock absorption effect of the shock absorber.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An outer cylinder of an automobile shock absorber, characterized in that: It comprises a barrel (1), a front end cover (2) and a hanging ring (3), wherein the front end cover (2), the barrel (1) and the hanging ring (3) are fixedly connected in sequence, and a mounting cavity (13) is provided inside the barrel (1); A heat dissipation cavity (12) is provided inside the barrel (1), the heat dissipation cavity (12) is an annular cavity, connected to the barrel (1) as a whole, and the heat dissipation cavity (12) is filled with cooling liquid; A plurality of heat dissipation grooves (11) are provided on the outer peripheral wall of the barrel (1), and a plurality of the heat dissipation grooves (11) are provided, and the plurality of heat dissipation grooves (11) are respectively arranged on both sides of the barrel (1); The lifting ring (3) is fixedly connected to the barrel (1), and a one-way valve (31) is provided on the side wall of the lifting ring (3), and the one-way valve (31) is communicated with the interior of the installation cavity (13).

2. The outer cylinder of an automobile shock absorber according to claim 1, characterized in that: A rubber sleeve (32) is provided inside the lifting ring (3), and a sealing ring (4) is provided inside the connection between the lifting ring (3) and the barrel body (1).

3. The outer cylinder of an automobile shock absorber according to claim 2, characterized in that: The front end cover (2) is provided with a mounting hole (21).

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