CN214838079U

CN214838079U - Vibration damper

Info

Publication number: CN214838079U
Application number: CN202121379554.9U
Authority: CN
Inventors: 李翔
Original assignee: Burcomb Auto Parts Systems Suzhou Co ltd
Current assignee: Burcomb Auto Parts Systems Suzhou Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-11-23
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a shock absorber, it includes first barrel, piston rod, second barrel, first dustproof pipe, second dustproof pipe and shield, the external diameter of second dustproof pipe with the external diameter of shield all is less than the external diameter of first dustproof pipe, the piston rod runs through first dustproof pipe with the second dustproof pipe, and with shield fixed connection. The utility model has simple structure and low cost, can adapt to various different suspension arrangement scenes, is provided with a first dustproof pipe, a second dustproof pipe and a dustproof cover which are connected together, plays a role in protecting the shock absorber cylinder and prevents dust or sand from entering the interior of the shock absorber cylinder to damage the piston rod; the outer diameter of the second dustproof pipe and the outer diameter of the dustproof cover are smaller than the outer diameter of the first dustproof pipe, and interference between the dustproof pipes, the dustproof cover and the shock absorber mounting support can be avoided in the process that the shock absorber swings along with vertical jumping of the suspension.

Description

Vibration damper

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a shock absorber.

Background

With the rapid development of vehicle technology, users have higher and higher requirements for the appearance quality and performance of vehicle parts. The shock absorber is an important part of a vehicle, is used for inhibiting the shock generated when a spring rebounds after absorbing shock and the impact from a road surface, and generally comprises a shock absorbing cylinder body for absorbing the shock and a dustproof pipe for protecting the shock absorbing cylinder body, wherein the dustproof pipe is used for preventing dust or sand from entering the shock absorbing cylinder body and damaging a piston rod.

At present, the shock absorber with larger tube diameter is mostly used on domestic commercial vehicles, but the larger the tube diameter is, the larger the diameter of the dust-proof tube of the shock absorber is, so that the installation space of the shock absorber is limited. In addition, in some suspension arrangement scenes, the shock absorber is installed in an inclined mode and limited by the structure of the shock absorber mounting bracket, and in the process that the shock absorber swings along with the vertical jump of the suspension, the dustproof pipe may interfere with the mounting bracket, so that the conventional shock absorber structure cannot meet the use requirement.

Therefore, there is a need to provide a new damper to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shock absorber, its simple structure, low cost can avoid the shock absorber to beat from top to bottom along with the suspension and the interference between the dustproof pipe of swing in-process and the installing support to solve the problem that above-mentioned background art provided.

In order to achieve the above object, the utility model discloses a technical scheme be: the utility model provides a shock absorber, its includes that first barrel, telescopic accept piston rod, cladding in the first barrel are in the second barrel, the cover of first barrel periphery are established the first dust tube of second barrel periphery, with the second dust tube of first dust tube connection and with second dust tube fixed connection's shield, the external diameter of second dust tube with the external diameter of shield all is less than the external diameter of first dust tube, the piston rod runs through first dust tube with the second dust tube, and with shield fixed connection.

The outer diameter of the second dustproof pipe is smaller than that of the second cylinder.

The inner diameter of the dustproof cover is equal to the outer diameter of the second dustproof pipe, and the dustproof cover and the second dustproof pipe are welded together.

The end part of the first dustproof pipe is connected with a sealing ring, and the second dustproof pipe is fixedly connected with the sealing ring.

The outer diameter of the second dustproof pipe is equal to the inner diameter of the sealing ring, and the second dustproof pipe and the sealing ring are welded together.

The piston rod and the dust cover are welded together.

One end of the first cylinder is connected with a connecting ring, the end of the connecting ring is connected with an end cap, the connecting ring is contained in the second cylinder, the end cap is contained in the end of the second cylinder, and the piston rod penetrates through the connecting ring and the end cap.

The connecting rings comprise a first section of connecting ring, a second section of connecting ring connected with the first section of connecting ring and a third section of connecting ring connected with the second section of connecting ring, the outer diameter of the first section of connecting ring is smaller than that of the third section of connecting ring, the outer diameter of the third section of connecting ring is smaller than that of the second section of connecting ring, the first section of connecting ring is connected in the first barrel, and the second section of connecting ring is abutted to the second barrel.

The shock absorber further comprises a first hanging ring fixedly connected with the dustproof cover and a second hanging ring connected to one end, far away from the first dustproof pipe, of the second barrel.

One end, far away from the first dustproof pipe, of the second cylinder body is connected with an cover plate, the second lifting ring is connected with the cover plate, and the distance between the first cylinder body and the cover plate is set at intervals.

Compared with the prior art, the utility model relates to a shock absorber's beneficial effect lies in: the shock absorber cylinder is simple in structure and low in cost, can adapt to various different suspension arrangement scenes, and is provided with a first dustproof pipe, a second dustproof pipe and a dustproof cover which are connected together, so that the shock absorber cylinder is protected, and dust or gravel is prevented from entering the shock absorber cylinder to damage a piston rod; the outer diameter of the second dustproof pipe and the outer diameter of the dustproof cover are smaller than the outer diameter of the first dustproof pipe, and interference between the dustproof pipes, the dustproof cover and the shock absorber mounting support can be avoided in the process that the shock absorber swings along with vertical jumping of the suspension.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and 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 without inventive work, wherein:

FIG. 1 is a schematic view of a shock absorber according to the present invention;

fig. 2 is a cross-sectional view of a shock absorber of the present invention;

fig. 3 is a partial schematic view of fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in 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.

Referring to fig. 1 to 3, the present invention relates to a shock absorber, which includes a first cylinder 10, a piston rod 20 telescopically received in the first cylinder 10, a second cylinder 30 wrapped around the first cylinder 10, a first dust tube 40 covered around the second cylinder 30, a second dust tube 50 connected to the first dust tube 30, a dust cap 60 fixedly connected to the second dust tube 50, a first hanging ring 70 fixedly connected to the dust cap 60, and a second hanging ring 80 connected to one end of the second cylinder 30 away from the first dust tube 40.

A connection ring 11 is connected to one end of the first cylinder 10, an end cap 12 is connected to an end of the connection ring 11, the connection ring 11 is received in the second cylinder 30, the end cap 12 is received in an end of the second cylinder 30, and the piston rod 20 passes through the connection ring 11 and the end cap 12. Specifically, the connection ring 11 includes a first section of connection ring 111, a second section of connection ring 112 connected to the first section of connection ring 111, and a third section of connection ring 113 connected to the second section of connection ring 112, an outer diameter of the first section of connection ring 111 is smaller than an outer diameter of the third section of connection ring 113, an outer diameter of the third section of connection ring 113 is smaller than an outer diameter of the second section of connection ring 112, the first section of connection ring 111 is connected in the first cylinder 10, and the second section of connection ring 112 is abutted to the second cylinder 30.

The piston rod 20 penetrates through the first dust tube 40 and the second dust tube 50, and is fixedly connected with the dust cap 60. Piston rod 20 can reach the purpose of absorbing vibrations in telescopic motion in first barrel 10, the utility model discloses in, hydraulic shock absorber is adopted to the shock absorber, when reciprocating relative motion is done with the axle to frame, piston (not shown) reciprocating motion in the barrel of shock absorber, fluid in the shock absorber barrel just flows into another inner chamber through some narrow holes from the inner chamber repeatedly, and at this moment, the internal friction of liquid and barrel inner wall and liquid molecule just forms the damping force to the vibration, makes automobile vibration energy turn into fluid heat energy, absorbs by the shock absorber again and gives off in the atmosphere, and this is prior art, no longer gives unnecessary details here. Preferably, the piston rod 20 and the dust cap 60 are welded together, so as to ensure the connection firmness between the piston rod 20 and the dust cap 60.

One end of the second cylinder 30, which is far away from the first dust-proof pipe 40, is connected with a cover plate 31, the second hanging ring 80 is connected with the cover plate 31, and a set distance is arranged between the first cylinder 10 and the cover plate 31.

The first dust-proof tube 40 is covered outside at least part of the second cylinder 30 to effectively protect part of the structure of the shock absorber therein. The end of the first dustproof pipe 40 is connected with a sealing ring 41, the second dustproof pipe 50 is fixedly connected with the sealing ring 41, preferably, the outer diameter of the second dustproof pipe 50 is equal to the inner diameter of the sealing ring 41, and the two are welded together, so that the connection stability of the second dustproof pipe 50 and the sealing ring 41 is fully ensured. The outer diameter of the second dustproof pipe 50 is smaller than that of the first dustproof pipe 40, the second dustproof pipe 50 with the smaller outer diameter is arranged, and interference between the dustproof pipe and the shock absorber mounting bracket can be avoided in the process that the shock absorber swings along with the vertical jump of the suspension. Preferably, the outer diameter of the second dust-proof pipe 50 is smaller than the outer diameter of the second cylinder 30, so that the interference between the dust-proof pipe and the shock absorber mounting bracket is sufficiently avoided when the shock absorber works.

The outer diameter of the dust cap 60 is smaller than that of the first dust tube 30, and the dust cap 60 with the smaller outer diameter is arranged, so that interference between the dust cap 60 and the shock absorber mounting bracket can be avoided in the process that the shock absorber swings along with the vertical jump of the suspension. The inner diameter of the dust cover 60 is equal to the outer diameter of the second dust pipe 50, and the dust cover and the second dust pipe are welded together, so that the firmness of connection of the dust cover and the second dust pipe is guaranteed.

The utility model relates to a shock absorber, its simple structure, low cost can adapt to multiple different suspension arrangement scenes, and it is provided with first dustproof pipe, second dustproof pipe and shield, and the three links together, plays the guard action to the shock absorber barrel, prevents that dust or grit from entering the shock absorber barrel inside and damaging the piston rod; the outer diameter of the second dustproof pipe and the outer diameter of the dustproof cover are smaller than the outer diameter of the first dustproof pipe, and interference between the dustproof pipes, the dustproof cover and the shock absorber mounting support can be avoided in the process that the shock absorber swings along with vertical jumping of the suspension.

Of course, those skilled in the art should realize that the above-mentioned embodiments are only used for illustrating the present invention, and not for limiting the present invention, and that the changes and modifications to the above-mentioned embodiments are all within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. A shock absorber, characterized by: it includes that first barrel, telescopic accept piston rod, cladding in the first barrel are in the second barrel, the cover of first barrel periphery are established the first dust tube of second barrel periphery, with the second dust tube of first dust tube connection and with second dust tube fixed connection's shield, the external diameter of second dust tube with the external diameter of shield all is less than the external diameter of first dust tube, the piston rod runs through first dust tube with the second dust tube, and with shield fixed connection.

2. A shock absorber as set forth in claim 1 wherein: the outer diameter of the second dustproof pipe is smaller than that of the second cylinder.

3. A shock absorber as set forth in claim 2 wherein: the inner diameter of the dustproof cover is equal to the outer diameter of the second dustproof pipe, and the dustproof cover and the second dustproof pipe are welded together.

4. A shock absorber as set forth in claim 1 wherein: the end part of the first dustproof pipe is connected with a sealing ring, and the second dustproof pipe is fixedly connected with the sealing ring.

5. A shock absorber as set forth in claim 4 wherein: the outer diameter of the second dustproof pipe is equal to the inner diameter of the sealing ring, and the second dustproof pipe and the sealing ring are welded together.

6. A shock absorber as set forth in claim 4 wherein: the piston rod and the dust cover are welded together.

7. A shock absorber as set forth in claim 6 wherein: one end of the first cylinder is connected with a connecting ring, the end of the connecting ring is connected with an end cap, the connecting ring is contained in the second cylinder, the end cap is contained in the end of the second cylinder, and the piston rod penetrates through the connecting ring and the end cap.

8. A shock absorber as set forth in claim 7 wherein: the connecting rings comprise a first section of connecting ring, a second section of connecting ring connected with the first section of connecting ring and a third section of connecting ring connected with the second section of connecting ring, the outer diameter of the first section of connecting ring is smaller than that of the third section of connecting ring, the outer diameter of the third section of connecting ring is smaller than that of the second section of connecting ring, the first section of connecting ring is connected in the first barrel, and the second section of connecting ring is abutted to the second barrel.

9. A shock absorber as set forth in any one of claims 1-8 wherein: the shock absorber further comprises a first hanging ring fixedly connected with the dustproof cover and a second hanging ring connected to one end, far away from the first dustproof pipe, of the second barrel.

10. A shock absorber as set forth in claim 9 wherein: one end, far away from the first dustproof pipe, of the second cylinder body is connected with an cover plate, the second lifting ring is connected with the cover plate, and the distance between the first cylinder body and the cover plate is set at intervals.