CN213419754U

CN213419754U - Air spring with good dust resistance

Info

Publication number: CN213419754U
Application number: CN202021832644.4U
Authority: CN
Inventors: 叶国辉
Original assignee: Ningbo Tengbo Intelligent Technology Co ltd
Current assignee: Ningbo Tengbo Intelligent Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-11
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses an air spring with good dust resistance, which comprises an air spring main body, wherein the air spring main body comprises a dust cover, a steel sleeve, a piston rod and a piston, the piston is arranged and connected on the inner sleeve of the steel sleeve, a through hole is arranged at the edge of one side of the piston, the piston rod is fixedly arranged at the middle part of one side of the piston, the dust cover is arranged and connected on the outer wall sleeve of the steel sleeve, a limit slider is fixedly arranged at both sides of the inner wall of the dust cover, and a limit chute is arranged at both sides of the outer wall of the dust cover. One side of two inserted blocks all installs solid fixed ring, the installation of the air spring of being convenient for.

Description

Air spring with good dust resistance

Technical Field

The utility model relates to an air spring, in particular to air spring that dustproofness is good belongs to spring technical field.

Background

The gas spring is an industrial accessory which can play a role in supporting, buffering, braking, height adjustment, angle adjustment and the like. It is composed of the following parts: the principle is that inert gas or oil-gas mixture is filled into the closed pressure cylinder, so that the pressure in the cavity is several times or dozens of times higher than the atmospheric pressure, and the motion of the piston rod is realized by utilizing the pressure difference generated by the fact that the cross section area of the piston rod is smaller than the cross section area of the piston. Due to the fundamental difference in principle, the gas spring has very remarkable advantages compared with the common spring: the speed is relatively slow, and the dynamic force change is not easy to control.

The existing air spring does not have a dustproof effect, and a large amount of dust can be accumulated at the connecting part of the piston rod and the steel bushing in the long-term use process, so that the friction force between the piston rod and the steel bushing is increased, the service life of the air spring is influenced, and the air spring with good dustproof performance needs to be designed.

Disclosure of Invention

An object of the utility model is to provide an air spring that dirt resistance is good to the air spring that proposes in solving above-mentioned background art does not possess dustproof effect, and the position of being connected of piston rod and steel bushing can long-term use long-pending a large amount of dusts of staying, thereby has increased the problem of frictional force between piston rod and the steel bushing.

In order to achieve the above object, the utility model provides a following technical scheme: including the air spring main part, the air spring main part includes dirt proof boot, steel bushing, piston rod and piston, the inside cover of steel bushing is established and is connected with the piston, the through-hole has been seted up to the edge of piston one side, the middle part fixed mounting of piston one side has the piston rod, the steel bushing outer wall cover is established and is connected with the dirt proof boot, the equal fixed mounting in dirt proof boot inner wall both sides has limit slide, two have all been seted up to the both sides of dirt proof boot outer wall limit slide and the limit slide sliding connection that corresponds, the inside top of dirt proof boot contacts with the one end of piston rod, the slot has all been seted up, two to the end play of dirt proof boot and steel bushing the inside of slot all inlays and is equipped with the inserted block, two the equal fixed mounting in one side of inserted block has solid fixed ring, two the.

As a preferred technical scheme of the utility model, stop gear includes the wedge post, the mounting groove has all been seted up in the both sides groove of slot, two the equal fixed mounting of one side cell wall of mounting groove has spacing spring, two the equal fixed mounting of one end of spacing spring has the wedge post, the wedge groove has all been seted up, two in the both sides of inserted block the one end of wedge post is inlayed with the wedge groove that corresponds and is established the connection.

As an optimized technical scheme of the utility model, two evenly distributed's anti-skidding line is seted up on solid fixed ring's surface.

As a preferred technical scheme of the utility model, the internal diameter of dirt proof boot and the external diameter phase-match of steel bushing, just the junction cover of dirt proof boot and steel bushing is equipped with the sealing washer.

As an optimal technical scheme of the utility model, the size of piston rod end department and the internal diameter phase-match of steel bushing, just the surface coating of piston rod has evenly distributed's lubricating oil.

As an optimal technical scheme of the utility model, dirt proof boot, steel bushing and piston rod are made by the carbon steel material.

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

1. the utility model relates to an air spring that dirt resistance is good through the dirt proof boot that the cover was established, through spacing slider and spacing spout sliding connection between dustproof sleeve and the steel bushing, effectually avoids the dust to enter into the junction of piston rod and steel bushing, increases the frictional force between piston rod and the steel bushing, influences the life of air spring.

2. The utility model relates to an air spring that dirt resistance is good is out of the dirt proof boot end through alternating and slot interlude through the steel bushing end to inlay through wedge and establish fixed with the inserted block, solid fixed ring, the installation of the air spring of being convenient for are all installed to one side of two inserted blocks.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is a schematic view of the connection structure of the insertion block and the slot of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 4 according to the present invention;

fig. 5 is a schematic diagram of the wedge-shaped block of the present invention.

In the figure: 1. a gas spring body; 2. a dust-proof sleeve; 3. steel jacket; 4. a limiting chute; 5. a fixing ring; 6. a limiting slide block; 7. a piston rod; 8. a piston; 9. a through hole; 10. a slot; 11. inserting a block; 12. a wedge-shaped groove; 13. a wedge-shaped column; 14. mounting grooves; 15. and a limiting spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a gas spring with good dust-proof property, which comprises:

according to the figures 1-5, the gas spring comprises a gas spring main body 1, the gas spring main body 1 comprises a dustproof sleeve 2, a steel sleeve 3, a piston rod 7 and a piston 8, the piston 8 is sleeved and connected inside the steel sleeve 3, a through hole 9 is formed in the corner of one side of the piston 8, the piston rod 7 is fixedly installed in the middle of one side of the piston 8, the dustproof sleeve 2 is sleeved and connected outside the steel sleeve 3, dust is effectively prevented from being accumulated to the connecting part of the piston rod 7 and the steel sleeve 3 through the sleeved dustproof sleeve 2, the friction force of the piston rod 7 is increased, limiting slide blocks 6 are fixedly installed on both sides of the inner wall of the dustproof sleeve 2, limiting slide grooves 4 are formed in both sides of the outer wall of the dustproof sleeve 2, the two limiting slide blocks 6 are in sliding connection with the corresponding limiting slide grooves 4, the limiting slide blocks 6 are in sliding connection with the limiting slide grooves 4, the moving direction of the dustproof sleeve, the end play of dirt proof boot 2 and steel bushing 3 has all seted up slot 10, and the inside of two slots 10 all inlays and is equipped with inserted block 11, and the equal fixed mounting in one side of two inserted blocks 11 has solid fixed ring 5, and the junction of two inserted blocks 11 and slot 10 is provided with stop gear, through the solid fixed ring 5 that is equipped with, the installation of the air spring of being convenient for.

According to the figures 1 and 2, the limiting mechanism comprises wedge-shaped columns 13, both side grooves of the slot 10 are provided with mounting grooves 14, one side groove wall of each mounting groove 14 is fixedly provided with a limiting spring 15, one end of each limiting spring 15 is fixedly provided with a wedge-shaped column 13, both sides of the insert 11 are provided with wedge-shaped grooves 12, one end of each wedge-shaped column 13 is embedded and connected with the corresponding wedge-shaped groove 12, the embedding of the wedge-shaped column 13 and the wedge-shaped groove 12 is controlled by the limiting springs 15 so as to limit and fix the insert 11, the surfaces of the two fixing rings 5 are provided with anti-skidding threads which are uniformly distributed, the inner diameter of the dustproof sleeve 2 is matched with the outer diameter of the steel sleeve 3, a sealing ring is sleeved at the joint of the dustproof sleeve 2 and the steel sleeve 3, the sealing performance of the joint is ensured, the size of the end of the piston rod 7 is matched with the inner diameter of the steel sleeve 3, the dust-proof sleeve 2, the steel sleeve 3 and the piston rod 7 are all made of carbon steel, so that the hardness of the air spring is increased.

When specifically using, the utility model relates to an air spring that dirt resistance is good, when needs use this air spring that dirt resistance is good, at first be connected two solid fixed rings 5 with external connection position, promote the flexible of dirt proof boot 2 at flexible in-process when piston rod 7, the spacing slider 6 of 2 inner wall both sides of dirt proof boot and the 4 sliding connection of spacing spout that 3 both sides of steel bushing were seted up, be convenient for carry on spacingly to 2 migration distance of dirt proof boot and direction, through 2 effectual dust accumulations of having avoided of dirt to the position of being connected between piston rod 7 and the steel bushing 3, the life of extension air spring.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An air spring with good dust resistance comprises an air spring main body (1) and is characterized in that the air spring main body (1) comprises a dust cover (2), a steel sleeve (3), a piston rod (7) and a piston (8), the piston (8) is sleeved and connected inside the steel sleeve (3), a through hole (9) is formed in the corner of one side of the piston (8), the piston rod (7) is fixedly installed in the middle of one side of the piston (8), the dust cover (2) is sleeved and connected on the outer wall of the steel sleeve (3), limiting slide blocks (6) are fixedly installed on two sides of the inner wall of the dust cover (2), limiting slide grooves (4) are formed in two sides of the outer wall of the dust cover (2), the two limiting slide blocks (6) are in sliding connection with the corresponding limiting slide grooves (4), and the top end inside the dust cover (2) is in contact with one end of the piston rod (7, the end of dirt proof boot (2) and steel bushing (3) goes out and has all seted up slot (10), two the inside of slot (10) all inlays and is equipped with inserted block (11), two the equal fixed mounting in one side of inserted block (11) has solid fixed ring (5), two the junction of inserted block (11) and slot (10) is provided with stop gear.

2. The gas spring that dust proofness is good of claim 1, characterized in that: stop gear includes wedge post (13), mounting groove (14), two have all been seted up in the both sides groove of slot (10) one side cell wall of mounting groove (14) equal fixed mounting have spacing spring (15), two the equal fixed mounting of one end of spacing spring (15) has wedge post (13), wedge groove (12), two have all been seted up to the both sides of inserted block (11) the one end of wedge post (13) inlays with the wedge groove (12) that corresponds and establishes the connection.

3. The gas spring that dust proofness is good of claim 1, characterized in that: the surface of the two fixing rings (5) is provided with anti-skid lines which are uniformly distributed.

4. The gas spring that dust proofness is good of claim 1, characterized in that: the inner diameter of the dustproof sleeve (2) is matched with the outer diameter of the steel sleeve (3), and a sealing ring is sleeved at the joint of the dustproof sleeve (2) and the steel sleeve (3).

5. The gas spring that dust proofness is good of claim 1, characterized in that: the size of the end of the piston rod (7) is matched with the inner diameter of the steel sleeve (3), and the surface of the piston rod (7) is coated with uniformly distributed lubricating oil.

6. The gas spring that dust proofness is good of claim 1, characterized in that: the dustproof sleeve (2), the steel sleeve (3) and the piston rod (7) are all made of carbon steel.