CN219472621U - Back tank type compression adjustable single-cylinder nitrogen damper - Google Patents

Abstract

The utility model discloses a back tank type compression adjustable single-cylinder nitrogen shock absorber which comprises an oil storage cylinder, wherein a piston valve assembly is movably arranged in the oil storage cylinder, a piston rod is arranged at the lower end of the piston valve assembly, the lower end of the piston rod is movably inserted into the outer side of the oil storage cylinder, a buffer block is arranged on the surface of the piston rod, an oil seal guide assembly is arranged at the lower end of the inner part of the oil storage cylinder, the oil seal guide assembly is sleeved on the outer side of the piston rod, an inverted back type integrated nitrogen shock absorber consists of a side hole liquid storage cylinder, an O ring, an integrated back tank aluminum piece and a dustproof cover cap, and the back tank type nitrogen shock absorber is a compression 16-section adjustable resistance shock absorber with clear and obvious gear, the resistance is adjusted by adjusting a valve hole, the structure of the valve is simple, and the change rate of the valve resistance is obvious from small to large and can reach at least 150%.

Description

Back tank type compression adjustable single-cylinder nitrogen damper

Technical Field

The utility model relates to the technical field of suspension vibration dampers of off-road vehicles, in particular to a back tank type compression adjustable single-cylinder nitrogen vibration damper.

Background

The shock absorber is an instrument for accelerating the vibration attenuation of a frame and a vehicle body so as to improve the running smoothness (comfort) of the vehicle, is arranged in the suspension system of most vehicles, is mainly used for the functions of the upper and lower shock absorbers of the vehicles in the suspension shock absorbers of the cross-country vehicles, and is composed of a shock absorber main body, an oil pipe and a nitrogen cylinder, and has the advantages of high cost, common appearance and complex installation of the nitrogen cylinder.

Disclosure of Invention

The utility model aims to provide a back tank type compression adjustable single-cylinder nitrogen shock absorber, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a single section of thick bamboo nitrogen shock absorber of back of body jar type compression adjustable, includes the oil storage jar, the inside movable mounting of oil storage jar has the piston valve assembly, the piston rod is installed to the lower extreme of piston valve assembly, the lower extreme activity of piston rod alternates in the outside of oil storage jar, the surface mounting of piston rod has the buffer block, the inside lower extreme of oil storage jar is provided with the oil blanket director assembly, the outside at the piston rod is established to the oil blanket director assembly cover, integrative back of body jar is installed to one side of piston rod, one side of integrative back of body jar inside is provided with the governing valve assembly, the nitrogen bottle is installed to the upper end of integrative back of body jar one side, the inside movable mounting of nitrogen bottle has the floating piston, the upper end of nitrogen bottle is provided with the high-pressure charging connector.

Preferably, the surface of the oil storage cylinder is sleeved with two O-rings, the two O-rings are symmetrically distributed on two sides of the integrated back tank, and a dustproof cover cap is installed at one end of the oil storage cylinder.

Preferably, the fish-eye socket further comprises a connecting seat, wherein the clamp spring is arranged in the connecting seat, a fish-eye bearing is sleeved in the clamp spring, and a fish-eye sleeve is sleeved in the fish-eye bearing.

Preferably, the oil seal guide assembly comprises a Style seal, an oil seal and a dustproof seal, wherein the Style seal, the oil seal and the dustproof seal are sequentially distributed from top to bottom, and the Style seal, the oil seal and the dustproof seal are arranged on the outer side of the piston rod.

Preferably, the inside upper end of nitrogen cylinder is inside to be provided with high-pressure nitrogen gas, the inside lower extreme of nitrogen cylinder is provided with damping oil.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model relates to an inverted back type integrated nitrogen shock absorber, which consists of a side hole liquid storage cylinder, an O ring, an integrated back tank aluminum piece, a dustproof cover cap and a plurality of pieces, and has the advantages of simple structure, convenience in loading, reduction of punching and fixing of nitrogen cylinders on a vehicle, and capability of achieving at least 150% of change rate from small to large, along with clear gear, obvious adjustment of resistance through adjusting a valve hole, simple structure of an adjusting valve and obvious change of resistance of the adjusting valve;

2. in the utility model, the main rod diameter sealing structure is of three sealing structures, namely one sealing structure, one sealing structure and one sealing structure of NOK oil seal in Japan, and the three outer dustproof sealing structures are filled with high-pressure inert nitrogen, and the pressure reaches 1.0-1.2 MPa.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic view of the structure of the upper connector of the present utility model;

FIG. 3 is a schematic view of the internal structure of the device of the present utility model;

FIG. 4 is a schematic view of the seal assembly of FIG. 3 according to the present utility model;

fig. 5 is a schematic view of the structure of the installation part of the integrated back tank.

In the figure: 1. an oil storage cylinder; 2. a connecting seat; 3. a piston rod; 4. a nitrogen cylinder; 5. an integral back tank; 6. an O-ring; 7. a dust-proof cover; 8. a buffer block; 9. a regulating valve assembly; 10. a fish-eye sleeve; 11. a fish-eye bearing; 12. clamping springs; 13. a high-pressure charging nozzle; 14. high pressure nitrogen; 15. a floating piston; 16. damping oil; 17. a piston valve assembly; 18. an oil seal guide assembly; 19. a stoneley seal; 20. an oil seal; 21. and (5) dust seal prevention.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment 1 referring to fig. 1 to 3, an embodiment of the present utility model is provided: a back tank type compression adjustable monocular nitrogen shock absorber comprises an oil storage cylinder 1, wherein a piston valve assembly 17 is movably arranged in the oil storage cylinder 1 (the piston valve assembly 17 mainly comprises a restoring valve nut, a restoring valve gasket, a restoring valve plate, an aluminum piston, an oil-resistant O-shaped piston ring and a limiting plate, a valve system structure is mainly a pagoda structure piston, the valve plate is small in size and stable in valve system resistance and resistant to attenuation due to the fact that the outer diameter of the valve plate is 2 MM), a piston rod 3 is arranged at the lower end of the piston valve assembly 17, the lower end of the piston rod 3 is movably inserted in the outer side of the oil storage cylinder 1, a buffer block 8 is arranged on the surface of the piston rod 3, an oil seal guide assembly 18 is arranged at the lower end of the inner part of the oil storage cylinder 1, the oil seal guide assembly 18 is sleeved on the outer side of the piston rod 3, an integrated back tank 5 is arranged on one side of the piston rod 3, an adjusting valve assembly 9 is arranged on one side of the inner part of the integrated back tank 5, a nitrogen cylinder 4 is movably arranged at the upper end of the side of the integrated back tank 5, a floating piston 15 is arranged in the inner part of the nitrogen cylinder 4, a high-pressure nitrogen cylinder 13 is arranged at the upper end of the nitrogen cylinder 4, a high-pressure nitrogen cylinder 14 is arranged at the upper end of the nitrogen cylinder 4, and a vibration absorber 16 is arranged at the lower end of the nitrogen cylinder 4 inside;

after the special vibration reduction oil 16 is injected into the high-pressure oil storage cylinder 1, high-purity nitrogen is filled from an air charging end cover (the air pressure reaches 1.3-1.5 MPA), so that the floating piston 15 moves forwards, the piston rod 3 is ejected out from the inner cavity to make the piston rod reciprocate inwards, necessary resistance is generated, and the inner cavity oil is the special vibration reduction oil 16; therefore, the nitrogen cylinder 4 is made of American 6061 high-strength aluminum parts with high temperature and low temperature resistance and vibration damping performance, and has a radiating fin structure, so that the working temperature of the vibration damper is greatly reduced.

In embodiment 2, referring to fig. 5, two O-rings 6 are sleeved on the surface of the oil storage cylinder 1, the two O-rings 6 are symmetrically distributed on two sides of the integrated back tank 5, and a dust-proof cover 7 is installed at one end of the oil storage cylinder 1;

the main principle of the regulating valve assembly 9 is that the size of a regulating valve hole is regulated, so that the resistance is changed, and the resistance is small when the hole is large; kong Xiaoze force is big, and the seal structure of integrative back of body jar 5 is sealed for both sides O circle 6, assembles in the outside of reservoir 1 through aluminium system back of body jar, and general O circle 6 separates the hole and seals, and the integrative back of body jar 5 back of body jar of aluminium system is fixed to rethread dust cover 7 makes it not become flexible, drops to guarantee its effectiveness.

In embodiment 3, referring to fig. 1 and 2, a snap spring 12 is installed in the connecting seat 2, a fisheye bearing 11 is sleeved in the snap spring 12, and a fisheye sleeve 10 is sleeved in the fisheye bearing 11;

the fish eye lifting ring main part is the connecting seat 2, the fish eye bearing 11, the clamp spring 12 and the shaft sleeve, the fish eye bearing 11 is made of high-strength restoration materials, is fatigue-resistant, is not easy to loosen and sound, has strong universality, can be formed in most parts, and can be used for various types of vehicles only by replacing the shaft sleeve.

In embodiment 4, referring to fig. 3 and 4, the oil seal guide assembly 18 includes a stoneley seal 19, an oil seal 20 and a dust seal 21, the stoneley seal 19, the oil seal 20 and the dust seal 21 are sequentially distributed from top to bottom, and the stoneley seal 19, the oil seal 20 and the dust seal 21 are sleeved on the outer side of the piston rod 3;

the large-diameter piston rod 3 with the main rod diameter of 22 is large in diameter and not easy to break or deform, and the main rod diameter is of a 3-channel key sealing structure, so that the influence of oil leakage is not easy to occur; the first seal 19 is inside, the second seal is NOK oil seal 20 in Japan, and the third seal is UK Helaite dust seal 21, which can effectively prevent dust and sand, and water enters the cavity.

Working principle: after the special vibration reduction oil 16 is injected into the high-pressure oil storage cylinder 1, high-purity nitrogen is filled from an air charging end cover (the air pressure reaches 1.3-1.5 MPA), so that the floating piston 15 moves forwards, the piston rod 3 is ejected out from the inner cavity, the piston rod is reciprocated inwards, necessary resistance is generated, and the inner cavity oil is the special vibration reduction oil 16; therefore, the nitrogen cylinder 4 is made of American 6061 high-strength aluminum parts with high temperature and low temperature resistance and vibration damping performance, and has a radiating fin structure, so that the working temperature of the vibration damper is greatly reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a single section of thick bamboo nitrogen shock absorber of back of body pot type compression adjustable, includes oil storage cylinder (1), its characterized in that: the inside movable mounting of reservoir (1) has piston valve assembly (17), piston rod (3) are installed to the lower extreme of piston valve assembly (17), the lower extreme activity of piston rod (3) alternates in the outside of reservoir (1), the surface mounting of piston rod (3) has buffer block (8), the inside lower extreme of reservoir (1) is provided with oil blanket director assembly (18), oil blanket director assembly (18) cover is established in the outside of piston rod (3), integrative back of the body jar (5) are installed to one side of piston rod (3), one side of the inside of integrative back of the body jar (5) is provided with governing valve assembly (9), nitrogen bottle (4) are installed to the upper end of one side of integrative back of the body jar (5), the inside movable mounting of nitrogen bottle (4) has floating piston (15), the upper end of nitrogen bottle (4) is provided with high-pressure charging connector (13).

2. The canister type compression adjustable mono-tube nitrogen damper as defined in claim 1, wherein: two O-rings (6) are sleeved on the surface of the oil storage cylinder (1), the two O-rings (6) are symmetrically distributed on two sides of the integrated back tank (5), and a dustproof cover cap (7) is installed at one end of the oil storage cylinder (1).

3. The canister type compression adjustable mono-tube nitrogen damper as defined in claim 1, wherein: still include connecting seat (2), the internally mounted of connecting seat (2) has jump ring (12), the inside cover of jump ring (12) is equipped with fisheye bearing (11), the inside cover of fisheye bearing (11) is equipped with fisheye sleeve pipe (10).

4. The canister type compression adjustable mono-tube nitrogen damper as defined in claim 1, wherein: the oil seal guide assembly (18) comprises a Style seal (19), an oil seal (20) and a dustproof seal (21), wherein the Style seal (19), the oil seal (20) and the dustproof seal (21) are sequentially distributed from top to bottom, and the Style seal (19), the oil seal (20) and the dustproof seal (21) are sleeved on the outer side of the piston rod (3).

5. The canister type compression adjustable mono-tube nitrogen damper as defined in claim 1, wherein: the nitrogen gas bottle (4) is inside to be provided with high-pressure nitrogen gas (14) in the upper end inside, the lower extreme of the inside of nitrogen gas bottle (4) is provided with damping oil (16).