Oil-leakage-proof high-sealing hydraulic shock absorber

Abstract

The utility model relates to the technical field of shock absorbers, and discloses an oil leakage prevention high-sealing hydraulic shock absorber which comprises a shock absorber body, a connecting rod is installed at the upper end of the shock absorber body in a sliding mode, a piston valve is installed at the lower end of the connecting rod, and a bottom valve is installed at the inner bottom end of the shock absorber body. A sealing chamber is installed at the upper end of the shock absorber body, sealing rings are arranged at the connecting positions of the sealing chamber and the connecting rods, the sealing rings are made of rubber materials, the two inner side walls of the sealing chamber are each provided with two springs, and pressing plates are arranged at the front ends of the springs. The connecting position of the sealing chamber and the connecting rod is subjected to secondary sealing through the two sealing rings, the sealing performance is improved, the connecting rod is extruded by the pressing plate through the four springs, leakage is avoided, the sealing performance is improved, the leakage-proof effect is achieved, the damping effect is not affected, environmental pollution caused by leakage is avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to an oil leakage-proof high-sealing hydraulic shock absorber. Background Art

[0002] Hydraulic shock absorbers are widely used as important vibration control components in modern industry, automobile, aviation, and navigation. They are usually composed of a piston, a cylinder, and a corresponding dynamic sealing device. They use hydraulic oil as the working medium and absorb and relieve vibration and impact through the reciprocating motion of the piston in the cylinder. Traditional hydraulic shock absorbers often cause hydraulic oil leakage due to insufficient sealing performance, which affects the shock absorption effect. Leakage pollutes the environment and increases maintenance costs. The surface of the hydraulic shock absorber is easily corroded, and long-term operation will cause internal wear. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an oil leakage-proof high-sealing hydraulic shock absorber, which has the advantages of oil leakage prevention and the like, and solves the problems raised by the background technology.

[0004] In order to achieve the above purpose of preventing oil leakage, the utility model provides the following technical solution: an oil leakage-proof high-sealing hydraulic shock absorber, comprising a shock absorber body, a connecting rod is slidably mounted on the upper end of the shock absorber body, a piston valve is mounted on the lower end of the connecting rod, and a bottom valve is mounted on the bottom end of the shock absorber body;

[0005] A sealing chamber is installed at the upper end of the shock absorber body, and a sealing ring is arranged at the connection between the sealing chamber and the connecting rod. The sealing ring is made of rubber material, and two springs are arranged on both inner side walls of the sealing chamber, and a pressure plate is arranged at the front end of the spring.

[0006] As a further solution of the utility model: an upper mounting ring is installed on the upper end of the connecting rod, a connecting shaft is installed on the lower end of the shock absorber body, and a lower mounting ring is installed on the lower end of the connecting shaft. The upper mounting ring and the lower mounting ring are installed on the connecting piece for use.

[0007] As a further solution of the utility model: the outer shell of the shock absorber body is made of carbon steel, the inner layer of the carbon steel is provided with an oil storage layer, the oil storage layer is connected to the oil seal chamber, and the oil seal chamber performs oil sealing on the connection between the shock absorber body and the connecting rod, thereby improving the sealing performance.

[0008] As a further solution of the utility model: the outer layer of the carbon steel is provided with an anti-corrosion coating, and the anti-corrosion coating is corrosion-resistant paint. The anti-corrosion coating improves the corrosion resistance of the surface of the shock absorber body, avoids corrosion of the surface, and thus increases the service life.

[0009] As a further solution of the utility model: the inner layer of the oil reservoir is provided with an anti-wear coating, and the anti-wear coating is made of an aluminum oxide coating material. The anti-wear coating can reduce the wear when in contact with the piston sealing ring, extend the service life of the seal, and has stability and high temperature resistance.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. In the utility model, two sealing rings are used to perform secondary sealing on the connection between the sealing chamber and the connecting rod, thereby improving the sealing performance. Four springs squeeze the pressure plate against the connecting rod to avoid leakage, thereby improving the sealing performance and playing a leak-proof role. The shock-absorbing effect is not affected, the environmental pollution caused by leakage is avoided, and the maintenance cost is reduced.

[0012] 2. In the utility model, the corrosion resistance of the surface of the shock absorber body is improved by the anti-corrosion coating, which prevents the surface from being corroded, thereby increasing the service life. The anti-wear coating can reduce the wear when in contact with the piston seal ring, extend the service life of the seal, and has stability and high temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0014] Figure 2 This is a schematic diagram of the material structure of the outer shell of the shock absorber body in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the shock absorber body in the utility model;

[0016] Figure 4 For the utility model Figure 3 A magnified schematic diagram.

[0017] In the figure: 1. shock absorber body; 2. sealing chamber; 3. connecting rod; 4. upper mounting ring; 5. connecting shaft; 6. lower mounting ring; 7. oil seal chamber; 8. piston valve; 9. bottom valve; 10. anti-corrosion coating; 11. carbon steel; 12. oil reservoir; 13. anti-wear coating; 14. spring; 15. pressure plate; 16. sealing ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that the anti-wear coating 13 and the aluminum oxide coating are both prior arts and are common knowledge to those skilled in the art, and will not be elaborated herein.

[0020] See also Figures 1 to 4 In the embodiment of the utility model, the oil leakage-proof high-sealing hydraulic shock absorber comprises a shock absorber body 1, a connecting rod 3 is slidably mounted on the upper end of the shock absorber body 1, a piston valve 8 is mounted on the lower end of the connecting rod 3, and a bottom valve 9 is mounted on the bottom end of the shock absorber body 1;

[0021] A sealing chamber 2 is installed at the upper end of the shock absorber body 1. A sealing ring 16 is provided at the connection between the sealing chamber 2 and the connecting rod 3. The sealing ring 16 is made of rubber material. Two springs 14 are provided on both inner side walls of the sealing chamber 2. A pressure plate 15 is provided at the front end of the spring 14.

[0022] The upper end of the connecting rod 3 is equipped with an upper mounting ring 4, the lower end of the shock absorber body 1 is equipped with a connecting shaft 5, and the lower end of the connecting shaft 5 is equipped with a lower mounting ring 6. The upper mounting ring 4 and the lower mounting ring 6 are installed on the connecting piece for use; the outer shell of the shock absorber body 1 is made of carbon steel 11, and the inner layer of the carbon steel 11 is provided with an oil storage layer 12, and the oil storage layer 12 is connected with the oil seal chamber 7. The oil seal chamber 7 performs oil sealing on the connection between the shock absorber body 1 and the connecting rod 3, thereby improving the sealing performance; the outer layer of the carbon steel 11 is provided with an anti-corrosion coating 10, and the anti-corrosion coating 10 is corrosion-resistant paint. The anti-corrosion coating 10 improves the corrosion resistance of the surface of the shock absorber body 1, avoids the surface from being corroded, and thus improves the service life; the inner layer of the oil storage layer 12 is provided with an anti-wear coating 13, and the anti-wear coating 13 is made of aluminum oxide coating material. The anti-wear coating 13 can reduce the wear when contacting with the piston sealing ring 16, extend the service life of the seal, and has stability and high temperature resistance.

[0023] The working principle of the utility model is: the upper mounting ring 4 and the lower mounting ring 6 are mounted on the connecting piece, the connecting rod 3 moves up and down in the shock absorber body 1, the oil seal chamber 7 performs oil sealing on the connection between the shock absorber body 1 and the connecting rod 3, thereby improving the sealing performance, the two sealing rings 16 perform secondary sealing on the connection between the sealing chamber 2 and the connecting rod 3, thereby improving the sealing performance, the four springs 14 squeeze the pressure plate 15 against the connecting rod 3 to avoid leakage, thereby improving the sealing performance and playing a leak-proof role, the anti-corrosion coating 10 improves the corrosion resistance of the surface of the shock absorber body 1, avoids corrosion of the surface, thereby improving the service life, the anti-wear coating 13 can reduce the wear when in contact with the piston sealing ring 16, extend the service life of the seal, and has stability and high temperature resistance.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil-leakage-proof high-sealing hydraulic shock absorber, comprising a shock absorber body (1), a connecting rod (3) being slidably mounted on the upper end of the shock absorber body (1), a piston valve (8) being mounted on the lower end of the connecting rod (3), and a bottom valve (9) being mounted on the inner bottom end of the shock absorber body (1); Features: A sealing chamber (2) is installed at the upper end of the shock absorber body (1), and a sealing ring (16) is provided at the connection between the sealing chamber (2) and the connecting rod (3), and the sealing ring (16) is made of rubber material. Two springs (14) are provided on both inner side walls of the sealing chamber (2), and a pressure plate (15) is provided at the front end of each spring (14).

2. The oil leakage-proof high-sealing hydraulic shock absorber according to claim 1 is characterized in that: An upper mounting ring (4) is mounted on the upper end of the connecting rod (3), a connecting shaft (5) is mounted on the lower end of the shock absorber body (1), and a lower mounting ring (6) is mounted on the lower end of the connecting shaft (5).

3. The oil leakage-proof high-sealing hydraulic shock absorber according to claim 1 is characterized in that: The outer shell of the shock absorber body (1) is made of carbon steel (11), the inner layer of the carbon steel (11) is provided with an oil storage layer (12), and the oil storage layer (12) is connected to the oil seal chamber (7).

4. The oil leakage-proof high-sealing hydraulic shock absorber according to claim 3 is characterized in that: The outer layer of the carbon steel (11) is provided with an anti-corrosion coating (10), and the anti-corrosion coating (10) is corrosion-resistant paint.

5. The oil leakage-proof high-sealing hydraulic shock absorber according to claim 3 is characterized in that: The inner layer of the oil storage layer (12) is provided with an anti-wear coating (13), and the anti-wear coating (13) is made of an aluminum oxide coating material.

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