CN217873953U - Dustproof structure of shock absorber, shock absorber and suspension system - Google Patents

Abstract

The utility model relates to a dustproof construction, shock absorber and suspension system of shock absorber, including dust cover (1), dust cover (1) is used for connecting piston rod (200) of shock absorber in the ascending one end of axial, and the other end is used for the cover to establish on oil storage cylinder section of thick bamboo (100) of shock absorber, dustproof construction still includes dustproof subassembly, dustproof subassembly sets up dust cover (1) with between oil storage cylinder section of thick bamboo (100) and including mounting base (2) and dirt-proof ring (3), mounting base (2) cover is located oil storage cylinder section of thick bamboo (100), dirt-proof ring (3) detachably cover is established on mounting base (2), just be provided with on the outer wall of dirt-proof ring (3) the butt in dirt lip (32) of dust cover (1) inner wall. Through above-mentioned technical scheme, this dustproof construction of shock absorber that openly provides is dustproof effectual.

Description

Dustproof structure of shock absorber, shock absorber and suspension system

Technical Field

The disclosure relates to the field of shock absorbers, in particular to a dustproof structure of a shock absorber, the shock absorber and a suspension system.

Background

A shock absorber is a device installed in a suspension system of a vehicle to accelerate the attenuation of the vibration of a vehicle frame and a vehicle body, so as to improve the ride comfort of the vehicle. The oil storage cylinder of the shock absorber is provided with the oil seal, and the oil seal can prevent oil in the oil storage cylinder from leaking and prevent impurities such as external muddy water and dust from invading the inside of the shock absorber. Wherein, the dustproof effect difference of shock absorber can make the oil blanket of oil storage cylinder be in adverse circumstances for a long time, easily causes the oil blanket damage like this and loses sealed effect even to influence the damping effect of shock absorber.

In the related art, a metal dust cover is disposed outside an oil storage cylinder of the shock absorber to improve the dust-proof effect of the shock absorber. However, the shock absorber is in the stretching process, negative pressure can appear in the metal dust cover, so that the outside air carrying a large amount of dust is sucked, and the service life and the sealing effect of the oil seal are further influenced. In addition, the vehicle is at the in-process of traveling, and the tiny grit that splashes also can enter into inside the dust cover through the space between dust cover and the oil storage cylinder section of thick bamboo to cause the oil blanket damage.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a dustproof construction of shock absorber, and this dustproof construction of shock absorber is dustproof effectual.

In order to realize the above-mentioned purpose, this disclosure provides a dustproof construction of shock absorber, including the dust cover, the dust cover is used for connecting the piston rod of shock absorber in the ascending one end of axial, and the other end is used for the cover to establish on the oil storage cylinder section of thick bamboo of shock absorber, dustproof construction still includes dustproof subassembly, dustproof subassembly sets up the dust cover with just including mounting base and dirt ring between the oil storage cylinder section of thick bamboo, the mounting base cover is located the oil storage cylinder section of thick bamboo, dirt ring detachably cover is established on the mounting base, just be provided with the butt on the outer wall of dirt ring in the dust lip of dust cover inner wall.

Optionally, the dust ring comprises an annular body, one end of which in the axial direction protrudes radially outward to form the dust lip.

Optionally, the dust lip has a diameter that is the same as a diameter of the dust cap.

Optionally, a plurality of open grooves are formed in the outer surface of the dust lip, and the open grooves are uniformly arranged in the circumferential direction of the dust lip at intervals.

Optionally, the mounting base includes a cylindrical body, and an opening is provided on the cylindrical body, and the opening extends along a radial direction of the cylindrical body to penetrate through a cylindrical wall of the cylindrical body.

Optionally, the dust ring and the mounting base are detachably connected together by a first connecting structure.

Optionally, the first connecting structure includes a first groove and a first protrusion, which are matched with each other, one of the first groove and the first protrusion is formed on the mounting base, and the other of the first groove and the first protrusion is formed on the dust-proof ring.

On the basis of the scheme, the shock absorber comprises a piston rod and an oil storage cylinder barrel, the shock absorber is provided with a dustproof structure of the shock absorber, one end of the dustproof cover in the axial direction is connected with the piston rod, the other end of the dustproof cover is sleeved on the oil storage cylinder barrel, and the mounting base is sleeved on the oil storage cylinder barrel.

Optionally, the oil storage cylinder and the mounting base are detachably connected together through a second connecting structure, the second connecting structure includes a second groove and a second protrusion which are matched with each other, one of the second groove and the second protrusion is formed on the mounting base, and the other of the second groove and the second protrusion is formed on the oil storage cylinder.

In addition, the present disclosure also provides a suspension system including the shock absorber described above.

Through above-mentioned technical scheme, in the dustproof construction of shock absorber that this disclosure provided, set up dustproof subassembly between dust cover and the oil storage cylinder section of thick bamboo, can be inside effective separation most dust and grit entering dust cover under the condition that does not influence the performance of shock absorber through the cooperation of dustproof subassembly and dust cover to effectively improve the dustproof effect of shock absorber. Specifically, the mounting base cover among the dustproof subassembly is established on the oil storage cylinder, and the dustproof lip butt on the dustproof ring cover is established on the mounting base and dustproof ring in the inner wall of dust cover, then can effectively block dust and gravel through the dustproof lip butt and get into inside the dust cover in the inner wall of dust cover to effectively improve the dustproof effect of shock absorber. Wherein, dust ring detachably cover is established on the mounting base, and the assembly of being convenient for on the one hand, on the other hand are convenient for change the dust ring. The setting mode of this dustproof construction can avoid causing the damage to the piston rod on the one hand, and on the other hand does not influence the external structure size and the arrangement and production assembly flow of shock absorber, and in addition, this dustproof construction of shock absorber not only simple structure, the assembly of being convenient for, low in manufacturing cost, dustproof effectual moreover.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a shock absorber provided in accordance with an embodiment of the present disclosure, wherein a dust-proof structure is shown;

FIG. 2 is an enlarged view of a portion of the location A of FIG. 1;

FIG. 3 is a schematic structural view of an oil reservoir cylinder in a shock absorber provided in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a mounting base in a dust seal arrangement for a shock absorber provided in accordance with an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a mounting base in a dust guard structure of a shock absorber provided in accordance with an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of a dust ring in a dust structure of a shock absorber according to an embodiment of the present disclosure;

fig. 7 is a sectional view of a dust ring in a dust structure of a shock absorber provided in accordance with an embodiment of the present disclosure.

Description of the reference numerals

1-a dust cover; 2-mounting a base; 21-a cylindrical body; 22-an opening; 23-a first groove; 24-a second projection; 3, a dustproof ring; 31-an annular body; 32-dust lip prevention; 33-open slots; 34-a first bump; 100-reserve cylinder barrel; 101-a second groove; 200-a piston rod; 300-oil seal.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner" and "outer" is intended to refer to the corresponding parts as "inner" and "outer" relative to the contour of the corresponding parts themselves, unless otherwise indicated. Furthermore, the terms "first," "second," and the like, as used herein, are intended to distinguish one element from another, and are not necessarily order or importance. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and explain the present disclosure and should not be construed to limit the present disclosure.

According to an embodiment of the present disclosure, a dust-proof structure of a shock absorber is provided, and one example of the dust-proof structure is shown in fig. 1, 2, and 4 to 7. Referring to fig. 1, 2 and 4 to 7, the dustproof structure may include a dust cover 1, one end of the dust cover 1 in the axial direction is used for connecting a piston rod 200 of the shock absorber, and the other end of the dust cover is used for being sleeved on an oil storage cylinder 100 of the shock absorber, the dustproof structure may further include a dustproof component, the dustproof component is disposed between the dust cover 1 and the oil storage cylinder 100 and includes a mounting base 2 and a dustproof ring 3, the mounting base 2 is sleeved on the oil storage cylinder 100, the dustproof ring 3 is detachably sleeved on the mounting base 2, and a dustproof lip 32 abutting against an inner wall of the dust cover 1 is disposed on an outer wall of the dustproof ring 3.

Through above-mentioned technical scheme, in the dustproof construction of shock absorber that this disclosure provided, set up dustproof subassembly between dust cover 1 and the oil storage cylinder section of thick bamboo 100, can be inside effective separation most dust and grit get into dust cover 1 under the condition that does not influence the performance of shock absorber through dustproof subassembly and dust cover 1's cooperation to effectively improve the dustproof effect of shock absorber. Specifically, 2 covers of mounting base among the dustproof subassembly are established on oil storage cylinder 100, and 3 covers of dust ring are established on mounting base 2 and the dustproof lip 32 butt on the dust ring 3 in the inner wall of dust cover 1, then can effectively obstruct dust and gravel entering dust cover 1 inside through dustproof lip 32 butt in the inner wall of dust cover 1 to effectively improve the dustproof effect of shock absorber. Wherein, the setting of mounting base 2 not only can install dust ring 3 detachably between oil storage cylinder 100 and dust cover 1 to be convenient for change dust ring 3, can also avoid the oil temperature in the oil storage cylinder 100 directly to transmit on dust ring 3 and influence dust ring 3's life. The setting mode of the dustproof structure can avoid damaging the piston rod 200 on the one hand, and on the other hand, the dustproof structure of the shock absorber does not influence the external structure size, the arrangement mode and the production and assembly process of the shock absorber.

In the embodiment of the present disclosure, the dust-proof ring 3 may be configured in any suitable manner, and alternatively, as shown in fig. 6 to 7, the dust-proof ring 3 may include an annular body 31, one end of the annular body 31 in the axial direction protrudes radially outward to form the dust-proof lip 32, the annular body 31 is configured to be sleeved on the mounting base 2, and the dust-proof lip 32 abuts on the inner wall of the dust-proof cover 1. The dust ring 3 may be made of any suitable material, for example, the dust ring 3 is made of NBR (nitrile butadiene rubber) or an equivalent performance grade material having excellent oil resistance, high wear resistance, and high heat resistance, wherein the dust lip 32 of the dust ring 3 abuts against the inner wall of the dust cover 1, and the dust ring 3 is made of a material having excellent oil resistance, high wear resistance, and high heat resistance, so that the wear resistance of the dust ring 3 can be improved, and the dust ring 3 is prevented from being worn and affecting the dust-proof effect of the shock absorber when moving relative to the oil storage cylinder 100 under the effect of the piston rod 200 of the dust cover 1, which is described below, on the other hand, the dust ring 3 can be prevented from being damaged by oil gas generated by the shock absorber in the working process, and the dust-proof effect of the shock absorber can be affected. In addition, the temperature of the oil in the oil storage cylinder 100 or the heat generated by friction with the dust ring 3 when the dust cover 1 moves relative to the oil storage cylinder 100 can be prevented from being transmitted to the dust ring 3, and the service life of the dust ring 3 can be prevented from being affected. The disclosure is not intended to be limited in any way. In other embodiments of the present disclosure, the dust ring 3 may also be configured in other ways, and the present disclosure is not limited thereto.

In the embodiment of this disclosure, the diameter of dust lip 32 can be the same with the diameter of dust cover 1 to make the inner wall transition fit of dust lip 32 and dust cover 1, such mode of setting can guarantee to effectively obstruct most dust and grit to get into inside dust cover 1 under the flexible motion's of not influencing the piston rod the circumstances. It should be noted that the oil gas generated during the operation of the shock absorber will adhere to the inner wall of the dust cover 1 after being cooled, so as to play a role of lubrication, thereby reducing the friction between the dust lip 32 and the dust cover 1.

In the specific embodiment of the present disclosure, referring to fig. 6 to 7, a plurality of open grooves 33 may be provided on the outer surface of the dust lip 32, the plurality of open grooves 33 are uniformly arranged along the circumferential direction of the dust lip 32 at intervals, and the arrangement of the open grooves 33 not only facilitates the air circulation in the dust cover 1, but also effectively prevents most of the gravel from entering the dust cover 1.

In the embodiment of the present disclosure, the mounting base 2 may be configured in any suitable manner, and alternatively, as shown in fig. 4 to 5, the mounting base 2 may include a cylindrical body 21, the cylindrical body 21 being provided with an opening 22, the opening 22 extending in a radial direction of the cylindrical body 21 to penetrate through a cylindrical wall of the cylindrical body 21. The opening 22 can be opened to facilitate the mounting base 2 to be fitted over the oil storage cylinder 100. Wherein, mounting base 2 can be made by arbitrary suitable material, for example, mounting base 2 chooses for use the better material of high temperature resistance to make, and mounting base 2 can guarantee mounting base 2 performance under high temperature through the better one side of high temperature resistance, is favorable to dirt proof ring 3's installation reliability, and on the other hand can avoid the fluid temperature in the oil storage cylinder section 100 directly to transmit to dirt proof ring 3 and influence the life of dirt proof ring 3. The disclosure is not limited in this regard. In other embodiments of the present disclosure, the mounting base 2 may be configured in other manners, and the present disclosure is not limited thereto.

In the embodiment of the present disclosure, as shown in fig. 1, 2 and 4 to 7, the dust-proof ring 3 and the mounting base 2 may be detachably connected together by a first connecting structure, which facilitates assembly and replacement of the dust-proof ring 3.

In particular embodiments of the present disclosure, the first connection structure may be configured in any suitable manner. Alternatively, referring to fig. 1, 2, and 4 to 7, the first connection structure may include a first groove 23 and a first protrusion 34 that are fitted, one of the first groove 23 and the first protrusion 34 is formed on the mounting base 2, and the other of the first groove 23 and the first protrusion 34 is formed on the dust proof ring 3. The first groove 23 and the first protrusion 34 are matched with each other to realize the installation and positioning of the dust-proof ring 3 and the installation base 2, so that the dust-proof ring 3 is prevented from being removed from the installation base 2. As shown in fig. 1, 2, and 4 to 7, the first groove 23 is formed on the outer wall of the cylindrical body 21 of the mounting base 2, the first protrusion 34 is formed on the inner wall of the annular body 31 of the dust-proof ring 3, and the dust-proof ring 3 and the mounting base 2 can be detachably connected by the mutual fit of the first groove 23 and the first protrusion 34. In other embodiments of the present disclosure, the first connection structure may have other configurations, for example, the first connection structure may be configured as a first flange portion formed on the mounting base 2 and a second flange portion formed on the dust ring 3, and the first flange portion and the second flange portion may be detachably connected together by a fastener, and the present disclosure is not limited thereto.

The first groove 23 and the first protrusion 34 may be configured in any suitable manner, for example, the first groove 23 is configured as an annular groove with a rectangular cross section, and the corresponding first protrusion 34 is configured as an annular protrusion with a rectangular cross section, and the disclosure is not limited thereto, and those skilled in the art can select the configuration according to actual needs.

On the basis of the above scheme, the present disclosure further provides a shock absorber, fig. 1 to 3 show an embodiment of the shock absorber, wherein, referring to fig. 1 to 3, the shock absorber may include a piston rod 200 and an oil storage cylinder 100, the shock absorber is provided with the above dustproof structure of the shock absorber, one end of the dustproof cover 1 in the axial direction is connected to the piston rod 200, the other end is sleeved on the oil storage cylinder 100, and the mounting base 2 is sleeved on the oil storage cylinder 100. Along with the reciprocating motion of piston rod 200 in oil storage cylinder section of thick bamboo 100, dust cover 1 and the relative axial motion of dust ring 3, inside the inner wall of dust cover 1 and the cooperation of the dust lip 32 of dust ring 3 can prevent effectively that dust silt etc. from getting into the dust cover, can prevent like this that impurity such as dust silt from piling up oil blanket 300 department on oil storage cylinder section of thick bamboo 100 and causing the damage to oil blanket 300 to can avoid oil storage cylinder section of thick bamboo 100 to lead to the condition emergence of oil leak because of oil blanket 300 damage.

When assembling, at first with dirt ring 3 and mounting base 2 assembly together, guarantee that dirt ring 3 firmly does not deviate from in the installation on mounting base 2, then overlap the dustproof subassembly cover after assembling on oil storage cylinder section of thick bamboo 100, treat to install piston rod 200, oil storage cylinder section of thick bamboo 100 rivets soon and seals the back, welds dust cover 1 again and accomplishes subsequent assembly and spraying work. It should be noted that the connection manner of the piston rod 200 and the reserve cylinder 100 in the shock absorber is well known to those skilled in the art, and the detailed description of the disclosure is omitted here.

In the embodiment of the present disclosure, as shown with reference to fig. 1 to 3, the oil storage cylinder 100 and the mounting base 2 are detachably connected together by the second connecting structure, which facilitates assembly and replacement of the mounting base 2. Wherein the second connection structure may be configured in any suitable manner. Alternatively, referring to fig. 1 to 5, the second connecting structure includes a second groove 101 and a second protrusion 24 that are engaged with each other, one of the second groove 101 and the second protrusion 24 is formed in the mounting base 2, and the other of the second groove 101 and the second protrusion 24 is formed in the oil storage cylinder 100. As shown in fig. 1 to 5, the second groove 101 is formed on the outer wall of the oil storage cylinder 100, the second protrusion 24 is formed on the inner wall of the cylindrical body 21 of the mounting base 2, and the detachable connection between the oil storage cylinder 100 and the mounting base 2 can be realized by the mutual cooperation of the second groove 101 and the second protrusion 24. In other embodiments of the present disclosure, the second connecting structure may be in other configurations, for example, the second connecting structure may be configured as a first flange portion formed on the mounting base 2 and a second flange portion formed on the reserve cylinder barrel 100, and the first flange portion and the second flange portion are detachably connected together by a fastener, to which the present disclosure is not limited in any way.

The second groove 101 and the second protrusion 24 may be configured in any suitable manner, for example, the second groove 101 is configured as an annular groove with a rectangular cross section, and the corresponding second protrusion 24 is configured as an annular protrusion with a rectangular cross section, and the disclosure is not limited thereto, and those skilled in the art can select them adaptively according to actual needs.

In addition, the present disclosure also provides a suspension system including the shock absorber described above.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.

Claims (10)

1. The utility model provides a dustproof construction of shock absorber, includes the dust cover, the one end of dust cover in the axial is used for connecting the piston rod of shock absorber, and the other end is used for the cover to establish on the oil storage cylinder of shock absorber, a serial communication port, dustproof construction still includes dustproof subassembly, dustproof subassembly sets up the dust cover with just including mounting base and dust ring between the oil storage cylinder, the mounting base cover is located the oil storage cylinder, dust ring detachably cover is established on the mounting base, just be provided with the butt on the outer wall of dust ring in the dust lip of dust cover inner wall.

2. The dust prevention structure of a shock absorber according to claim 1, wherein the dust prevention ring comprises an annular body, one end of which in an axial direction is projected radially outward to form the dust prevention lip.

3. The dust-proof structure of a shock absorber according to claim 2, wherein a diameter of the dust lip is the same as a diameter of the dust cover.

4. The dust prevention structure of a shock absorber according to claim 2, wherein a plurality of open grooves are provided on an outer surface of the dust lip, and the plurality of open grooves are provided evenly at intervals in a circumferential direction of the dust lip.

5. The dustproof structure of a shock absorber according to claim 1, wherein the mounting base includes a cylindrical body provided with an opening that extends in a radial direction of the cylindrical body to penetrate a wall of the cylindrical body.

6. The dust-proof structure of a shock absorber according to claim 1, wherein the dust-proof ring and the mounting base are detachably connected together by a first connecting structure.

7. The dust prevention structure of a shock absorber according to claim 6, wherein the first connection structure includes a first groove and a first protrusion that are fitted, one of the first groove and the first protrusion is formed at the mounting base, and the other of the first groove and the first protrusion is formed at the dust prevention ring.

8. A shock absorber comprises a piston rod and an oil storage cylinder, and is characterized in that the shock absorber is provided with the dustproof structure of the shock absorber as claimed in any one of claims 1 to 7, one end of the dustproof cover in the axial direction is connected with the piston rod, the other end of the dustproof cover is sleeved on the oil storage cylinder, and the mounting base is sleeved on the oil storage cylinder.

9. The shock absorber as set forth in claim 8 wherein said oil reservoir and said mounting base are removably connected together by a second connecting structure,

the second connecting structure comprises a second groove and a second protrusion which are matched with each other, one of the second groove and the second protrusion is formed on the mounting base, and the other of the second groove and the second protrusion is formed on the oil storage cylinder.

10. A suspension system comprising the shock absorber of claim 8 or 9.

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