CN217653131U

CN217653131U - Air damper

Info

Publication number: CN217653131U
Application number: CN202123215363.1U
Authority: CN
Inventors: 陈善良; 陈梦蛟; 王爱国
Original assignee: Suzhou Huanyi Shock Absorber Co ltd
Current assignee: Suzhou Huanyi Shock Absorber Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-10-25
Anticipated expiration: 2031-12-20

Abstract

The utility model belongs to the field of shock absorbers, in particular to an air shock absorber, which comprises a cylinder barrel, a lower connecting pipe and a protection unit; the lower end of the cylinder barrel is fixedly connected with a lower connecting pipe; the cylinder barrel is provided with a protection unit; the inner part of the cylinder barrel is hermetically and slidably connected with a floating piston; a sealing ring is sleeved on the side surface of the floating piston in a slotted manner; the inner part of the cylinder barrel is hermetically and slidably connected with a working piston; the working piston is fixedly connected with a compression valve and an expansion valve in a communicating manner; a piston rod is fixedly connected to the working piston; the piston rod is inserted on the cylinder barrel in a sealing and sliding manner; the upper end of the piston rod is sleeved with an upper connecting pipe; a first fastener is inserted into the upper connecting pipe through a hole and a thread; through a plurality of second fasteners, first protection tube and second protection tube are closely fixed at the lateral surface of cylinder to reduce the probability that the cylinder receives external force deformation at the car in-process of traveling, improved the ability that does not warp of bearing the external force of cylinder.

Description

Air damper

Technical Field

The utility model relates to a shock absorber field specifically is an air damper.

Background

The shock absorber is an important part on the vehicle and has the function of accelerating the attenuation of vibration between a frame and a vehicle body, so that the smoothness of the automobile in the running process is better.

The air damper is an inflatable damper, and the cylinder barrel is divided into three parts by injecting high-pressure nitrogen into the cylinder barrel and using a floating piston to cooperate with a working piston, so that the damper with a simplified structure is obtained.

The wall thickness of a cylinder barrel of the air shock absorber is not enough, so that the air shock absorber is easy to deform after colliding with an object encountered in the running of an automobile, the shock absorber cannot work normally, and the shock absorber cannot absorb the shock of the automobile; therefore, an air damper has been proposed to address the above problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate prior art's not enough, solve air damper's cylinder wall thickness inadequately, consequently warp after the object collision that meets in going with the car easily, lead to the unable normal work of shock absorber to lead to the problem that can't give the vehicle damping, the utility model provides an air damper.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to an air damper, which comprises a cylinder barrel, a lower connecting pipe and a protection unit; the lower end of the cylinder barrel is fixedly connected with a lower connecting pipe; the cylinder barrel is provided with a protection unit; the inner part of the cylinder barrel is hermetically and slidably connected with a floating piston; a sealing ring is sleeved on a groove in the side surface of the floating piston; the inner part of the cylinder barrel is hermetically and slidably connected with a working piston; the working piston is fixedly connected with a compression valve and an expansion valve in a communicating manner; a piston rod is fixedly connected to the working piston; the piston rod is hermetically and slidably inserted on the cylinder barrel; the upper end of the piston rod is sleeved with an upper connecting pipe; a first fastener is inserted into the upper connecting pipe through a hole and a thread; the upper end of the piston rod is provided with a limiting groove corresponding to the first fastener; a first protection pipe and a second protection pipe are symmetrically sleeved on the cylinder barrel; a plurality of second fasteners are fixedly connected between the first protection pipe and the second protection pipe through threads; therefore, the probability that the cylinder barrel is deformed by external force in the driving process of the automobile is reduced, and the capacity of the cylinder barrel for bearing the external force without deformation is improved.

Preferably, the first protection pipe and the second protection pipe are both provided with mounting grooves; the mounting groove is internally and slidably connected with an anti-collision ring; make the anticollision circle restricted on first protective tube and second protective tube through the mounting groove to can not rock the production sound.

Preferably, a plurality of spaced support columns are symmetrically and fixedly connected to the upper part and the lower part of the anti-collision ring; a plurality of reinforcing columns are fixedly connected to the periphery of the outer side surface of the anti-collision ring at intervals; through the interval support column make can fix a plurality of anticollision circles on first protective tube and second protective tube.

Preferably, a third fastener is fixedly connected to the first protection pipe through threads; a third protective pipe is sleeved on the third fastener; the third protection pipe is sleeved on the first protection pipe; the third protective tube is stably fixed on the first protective tube through the third fastener, so that the secondary protective cylinder barrel is realized.

Preferably, a fourth fastener is fixedly connected to the first protection pipe through threads; a fourth protection pipe is sleeved on the fourth fastener; the fourth protection pipe is sleeved on the second protection pipe; the third protection tube and the fourth protection tube are accommodated in the accommodating space deformed by external force, so that the cylinder barrel cannot be extruded to cause abnormal work.

Preferably, the third protection pipe is provided with first reinforcing grooves at regular intervals; second reinforcing grooves are uniformly formed in the fourth protection pipe at intervals; can be along first stiffening groove and second stiffening groove deformation to conveniently dismantle the third protection tube and the fourth protection tube that warp.

Preferably, the first reinforcing groove and the second reinforcing groove are sleeved with protective pipes in a sliding manner; the protective pipe is sleeved on the third protective pipe and the fourth protective pipe; make can completely cut off the water, earth and the stone that play that the in-process of traveling of vehicle splashes can not with third protection tube and fourth protection tube direct contact to realized reducing wearing and tearing, prevent rusty function.

Preferably, a lower anti-slip pipe is sleeved in the lower connecting pipe; an upper anti-slip pipe is sleeved in the upper connecting pipe; the lower anti-slip pipe and the upper anti-slip pipe are both made of rubber; the lower anti-slip pipe and the upper anti-slip pipe made of rubber are fixed between the frame and the vehicle body more stably, and abrasion caused by friction is reduced.

The utility model discloses an useful part lies in:

1. the utility model discloses a plurality of second fasteners are closely fixed first protection tube and second protection tube at the lateral surface of cylinder to reduce the probability that the cylinder receives external force deformation in the automobile driving process, improved the ability that the cylinder does not warp to bear external force;

2. the utility model discloses a third protection tube and fourth protection tube make and carry out the secondary protection to the cylinder, and cooperate first protection tube and second protection tube, can realize alternate secondary protection, for the accommodation space that receives external force deformation of third protection tube and fourth protection tube to can not extrude the cylinder and lead to unable normal work.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a sectional front view of a shock absorber according to a first embodiment;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic top view, cross-sectional view, of a shock absorber according to a first embodiment;

FIG. 4 is a schematic structural view of a crash ring according to the first embodiment;

fig. 5 is a sectional front view of the shock absorber according to the second embodiment.

In the figure: 1. a cylinder barrel; 2. a lower connecting pipe; 3. a lower anti-slip tube; 4. a working piston; 5. a compression valve; 6. a valve is extended; 7. a piston rod; 8. a limiting groove; 9. a first fastener; 10. an upper connecting pipe; 11. an upper anti-slip pipe; 12. a first protective tube; 13. a second fastener; 14. a second protection pipe; 15. mounting grooves; 16. an anti-collision ring; 17. spacing support columns; 18. a third protection tube; 19. a third fastener; 20. a first reinforcement groove; 21. a protective tube; 22. a reinforcement column; 23. a fourth fastener; 25. a floating piston; 26. a seal ring; 27. a fourth protection tube; 28. a second reinforcement groove; 29. a first guard plate; 30. and a second protection plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, an air damper includes a cylinder 1, a lower connection pipe 2, and a protection unit; the lower end of the cylinder barrel 1 is fixedly connected with a lower connecting pipe 2; the cylinder barrel 1 is provided with a protection unit; a floating piston 25 is connected inside the cylinder barrel 1 in a sealing and sliding manner; a sealing ring 26 is sleeved on a groove in the side surface of the floating piston 25; the inner part of the cylinder barrel 1 is hermetically and slidably connected with a working piston 4; the working piston 4 is fixedly connected with a compression valve 5 and an extension valve 6; a piston rod 7 is fixedly connected to the working piston 4; the piston rod 7 is inserted on the cylinder barrel 1 in a sealing and sliding manner; the upper end of the piston rod 7 is sleeved with an upper connecting pipe 10; a first fastener 9 is inserted into the upper connecting pipe 10 through a hole and a thread; the upper end of the piston rod 7 is provided with a limiting groove 8 corresponding to the first fastener 9; a first protection pipe 12 and a second protection pipe 14 are symmetrically sleeved on the cylinder barrel 1; a plurality of second fasteners 13 are fixedly connected between the first protection pipe 12 and the second protection pipe 14 through threads; during operation, the first protective pipe 12 and the second protective pipe 14 are tightly fixed on the outer side surface of the cylinder barrel 1 through the second fasteners 13, so that the probability that the cylinder barrel 1 is deformed by external force in the driving process of an automobile is reduced, and the capability of the cylinder barrel 1 for bearing the external force without deformation is improved.

The first protection pipe 12 and the second protection pipe 14 are both provided with mounting grooves 15; an anti-collision ring 16 is connected in the mounting groove 15 in a sliding manner; in operation, the crash ring 16 is restrained on the first protective tube 12 and the second protective tube 14 by the mounting groove 15 so as not to shake to generate sound.

A plurality of spaced support columns 17 are symmetrically and fixedly connected to the upper part and the lower part of the anti-collision ring 16; a plurality of reinforcing columns 22 are fixedly connected to the circumference of the outer side surface of the anti-collision ring 16 at intervals; in operation, make the structure that can regard as deformation through the reinforcement post 22 to absorb kinetic energy, prevent that first protection tube 12 and second protection tube 14 from warping under less external force, make through interval support column 17 and can fix a plurality of anticollision circles 16 on first protection tube 12 and second protection tube 14.

A third fastener 19 is fixedly connected to the first protection pipe 12 through threads; a third protective pipe 18 is sleeved on the third fastener 19; the third protection pipe 18 is sleeved on the first protection pipe 12; in operation, the third protection tube 18 is stably fixed on the first protection tube 12 by the third fastening piece 19, so as to protect the cylinder tube 1 for the second time.

A fourth fastener 23 is fixedly connected to the first protection pipe 12 through threads; a fourth protective pipe 27 is sleeved on the fourth fastener 23; the fourth protection pipe 27 is sleeved on the second protection pipe 14; the during operation makes through third protection tube 18 and fourth protection tube 27 carry out the secondary protection to cylinder 1, and cooperates first protection tube 12 and second protection tube 14, can realize alternate secondary protection, for the accommodation space that receives external force deformation of third protection tube 18 and fourth protection tube 27 to can not extrude cylinder 1 and lead to unable normal work.

First reinforcing grooves 20 are uniformly arranged on the third protective pipe 18 at intervals; second reinforcing grooves 28 are uniformly arranged on the fourth protective pipe 27 at intervals; in operation, the first reinforcing groove 20 and the second reinforcing groove 28 enable the third protection tube 18 and the fourth protection tube 27 to deform along the first reinforcing groove 20 and the second reinforcing groove 28 after being impacted by external force, and therefore the deformed third protection tube 18 and the deformed fourth protection tube 27 can be conveniently detached.

The first reinforcing groove 20 and the second reinforcing groove 28 are sleeved with a protective pipe 21 in a sliding manner; the protective pipe 21 is sleeved on the third protective pipe 18 and the fourth protective pipe 27; during operation, the protective pipe 21 made of rubber prevents water, mud and stones splashed in the running process of the vehicle from directly contacting the third protective pipe 18 and the fourth protective pipe 27, thereby reducing abrasion and preventing rusting.

A lower anti-skid tube 3 is sleeved in the lower connecting tube 2; an upper anti-skid pipe 11 is sleeved in the upper connecting pipe 10; the lower anti-skid tube 3 and the upper anti-skid tube 11 are both made of rubber; during operation, the lower anti-slip pipe 3 and the upper anti-slip pipe 11 which are made of rubber enable the fixing between the frame and the vehicle body to be more stable, and abrasion caused by friction is reduced.

Example two

Referring to fig. 5, in a first comparative example, as another embodiment of the present invention, a second protection plate 30 is fixedly connected to the third protection pipe 18; a first protection plate 29 is fixedly connected to the fourth protection pipe 27; the first protection plate 29 and the second protection plate 30 are sleeved on the piston rod 7; in operation, the first protection plate 29 and the second protection plate 30 made of rubber enable dust on the piston rod 7 to be isolated and blocked outside, and the dust cannot enter and exit the cylinder barrel 1 to cause abrasion.

According to the working principle, the first protective pipe 12 and the second protective pipe 14 are tightly fixed on the outer side surface of the cylinder barrel 1 through the plurality of second fastening pieces 13, so that the probability that the cylinder barrel 1 is deformed by external force in the automobile running process is reduced, and the capacity of the cylinder barrel 1 for bearing the external force and not deforming is improved; the crash ring 16 is restrained on the first protective tube 12 and the second protective tube 14 by the mounting groove 15 so as not to shake to generate sound; the first protective tube 12 and the second protective tube 14 are prevented from deforming under a small external force by absorbing kinetic energy through the reinforcing columns 22, and a plurality of crash rings 16 can be fixed on the first protective tube 12 and the second protective tube 14 through the spaced support columns 17; the third protection pipe 18 is stably fixed on the first protection pipe 12 through a third fastener 19, so that the secondary protection cylinder barrel 1 is realized; the cylinder barrel 1 is protected secondarily through the third protection pipe 18 and the fourth protection pipe 27, and the first protection pipe 12 and the second protection pipe 14 are matched, so that spaced secondary protection can be achieved, and the cylinder barrel is an accommodating space of the third protection pipe 18 and the fourth protection pipe 27, which is deformed by external force, and the cylinder barrel 1 cannot be squeezed to work normally; through the first reinforcing groove 20 and the second reinforcing groove 28, the third protective tube 18 and the fourth protective tube 27 can be deformed along the first reinforcing groove 20 and the second reinforcing groove 28 after being impacted by external force, so that the deformed third protective tube 18 and the fourth protective tube 27 can be conveniently detached; the protective pipe 21 made of rubber can isolate water, mud and stones splashed during the running process of the vehicle from directly contacting with the third protective pipe 18 and the fourth protective pipe 27, thereby realizing the functions of reducing abrasion and preventing rusting; the lower anti-skid tube 3 and the upper anti-skid tube 11 are made of rubber, so that the fixing between the frame and the vehicle body is more stable, and the abrasion caused by friction is reduced.

In the description of the present specification, reference to the description of "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. An air damper, characterized in that: comprises a cylinder barrel (1), a lower connecting pipe (2) and a protection unit; the lower end of the cylinder barrel (1) is fixedly connected with a lower connecting pipe (2); the cylinder barrel (1) is provided with a protection unit; the inner part of the cylinder barrel (1) is hermetically and slidably connected with a floating piston (25); a sealing ring (26) is sleeved in a groove on the side surface of the floating piston (25); the inner part of the cylinder barrel (1) is hermetically and slidably connected with a working piston (4); a compression valve (5) and an extension valve (6) are fixedly connected to the working piston (4) in a communicating manner; a piston rod (7) is fixedly connected to the working piston (4); the piston rod (7) is inserted on the cylinder barrel (1) in a sealing and sliding manner; the upper end of the piston rod (7) is sleeved with an upper connecting pipe (10); a first fastener (9) is inserted into the upper connecting pipe (10) through a hole and a thread; the upper end of the piston rod (7) is provided with a limiting groove (8) corresponding to the first fastener (9); a first protection pipe (12) and a second protection pipe (14) are symmetrically sleeved on the cylinder barrel (1); and a plurality of second fasteners (13) are fixedly connected between the first protection pipe (12) and the second protection pipe (14) through threads.

2. An air damper as claimed in claim 1, wherein: the first protection pipe (12) and the second protection pipe (14) are respectively provided with a mounting groove (15); and an anti-collision ring (16) is connected in the mounting groove (15) in a sliding manner.

3. An air damper according to claim 2, wherein: a plurality of spaced supporting columns (17) are symmetrically and fixedly connected to the upper part and the lower part of the anti-collision ring (16); a plurality of reinforcing columns (22) are fixedly connected to the periphery of the outer side surface of the anti-collision ring (16) at intervals.

4. An air damper according to claim 3, wherein: a third fastening piece (19) is fixedly connected to the first protection pipe (12) through threads; a third protective pipe (18) is sleeved on the third fastener (19); the third protective tube (18) is sleeved on the first protective tube (12).

5. An air damper according to claim 4, wherein: a fourth fastener (23) is fixedly connected to the first protection pipe (12) through threads; a fourth protective pipe (27) is sleeved on the fourth fastener (23); the fourth protection pipe (27) is sleeved on the second protection pipe (14).

6. An air damper as claimed in claim 5, wherein: first reinforcing grooves (20) are uniformly arranged on the third protective pipe (18) at intervals; second reinforcing grooves (28) are formed in the fourth protection pipe (27) at even intervals.

7. An air damper according to claim 6, wherein: the first reinforcing groove (20) and the second reinforcing groove (28) are sleeved with a protective pipe (21) in a sliding manner; the protective pipe (21) is sleeved on the third protective pipe (18) and the fourth protective pipe (27).

8. An air damper according to claim 7, wherein: a lower anti-skid tube (3) is sleeved in the lower connecting tube (2); an upper anti-skid pipe (11) is sleeved in the upper connecting pipe (10); the lower anti-skid pipe (3) and the upper anti-skid pipe (11) are both made of rubber.