CN218235934U

CN218235934U - Single-cylinder shock absorber with external air storage cylinder

Info

Publication number: CN218235934U
Application number: CN202222334224.9U
Authority: CN
Inventors: 林宝德; 郑念华; 叶祥忠; 冯美菊
Original assignee: Add Industry Zhejiang Corp ltd
Current assignee: Add Industry Zhejiang Corp ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-01-06
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses an external single cylinder shock absorber of reservoir relates to single cylinder shock absorber technical field, including being used for holding fluid and gaseous working cylinder, be equipped with the piston assembly who separates fluid and gaseous floating piston and sliding connection in the working cylinder, the chamber at fluid and gaseous place is reservoir chamber and gaseous working chamber respectively, is equipped with the reservoir cylinder that is linked together with gaseous working chamber outside the working cylinder, and the reservoir cylinder is the outward appearance setting that flat structure and reservoir cylinder are on a parallel with the working cylinder, and the edge of reservoir cylinder is equipped with seal structure. The utility model discloses when not increasing the production degree of difficulty and cost, utilize compressed gas to realize great refute power to reduce fuselage length, install more easily.

Description

Single-cylinder shock absorber with external air storage cylinder

Technical Field

The utility model relates to a single cylinder shock absorber technical field, concretely relates to external single cylinder shock absorber of air cylinder.

Background

In order to quickly attenuate the vibration of the frame and the body and improve the smoothness and comfort of the running of the automobile, a shock absorber is generally arranged on an automobile suspension system, and a bidirectional cylinder type shock absorber is widely adopted on the automobile. The shock absorber is a vulnerable part in the use process of an automobile, and the good and bad operation of the shock absorber directly influences the running stability of the automobile and the service life of other parts, so that the shock absorber is always in a good working state. The conventional single-cylinder shock absorber has the advantages that all working parts are concentrated in the same working cavity, so that the shock absorber is long, the loading size and the working size have certain conflict, and the space volume in the working cavity is limited, the air volume is small, so that the compressed air is difficult to realize large refuting force and achieve the effect of higher air damping. The existing single-cylinder shock absorber realizes the modes of increasing the refuting force and increasing the gas damping, a cavity type accessory is additionally arranged outside the existing shock absorber body so as to achieve the purpose of increasing the capacity of an inner cavity, but the additional addition of the cavity type accessory can greatly increase the production difficulty and cost, and certain installation interference risks exist during loading and use.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Longer to current single cylinder shock absorber fuselage, difficult installation, and be difficult to utilize compressed gas to realize great refuting power, and additionally increase the technical problem that a cavate annex can increase the production degree of difficulty and cost, the utility model provides an external single cylinder shock absorber of air cylinder, it utilizes compressed gas to realize great refuting power when not increasing the production degree of difficulty and cost to reduce fuselage length, install more easily.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

a single-cylinder shock absorber with an external air storage cylinder comprises a working cylinder used for containing oil and gas, wherein a floating piston and a sliding-connection piston assembly are arranged in the working cylinder and used for separating the oil and the gas, cavities where the oil and the gas are located are an oil storage cavity and a gas working cavity respectively, the air storage cylinder communicated with the gas working cavity is arranged outside the working cylinder, the air storage cylinder is of a flat structure and is parallel to the outer surface of the working cylinder, and a sealing structure is arranged at the edge of the air storage cylinder.

Optionally, the sealing structure comprises a sealing ring and a groove which are matched, and the cross-sectional width of the sealing ring is larger than the depth of the groove.

Optionally, a gasket is arranged beside the sealing ring, and the gasket is located in the groove.

Optionally, the outer side of the working cylinder is provided with a limit ring matched with the air storage cylinder.

Optionally, the reservoir cylinder and the working cylinder are in interference press fit.

Optionally, an outer cylinder is arranged outside the air storage cylinder, and the outer cylinder is connected with the working cylinder.

Optionally, the outer cylinder is connected with the working cylinder through a sealing connecting block, and sealing rings are arranged on two sides of the sealing connecting block, facing the outer cylinder and the working cylinder.

Optionally, the outer edge of the reservoir is provided with a chamfered formation.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the technical scheme provided by the utility model is based on the conventional single cylinder shock absorber, a jacket type air storage cylinder for increasing the capacity is added, the gas damping is increased on the premise of the same size, the larger refuting force is achieved, the use performance is greatly optimized, and the application range of the single cylinder shock absorber is expanded; furthermore, a sealing ring is arranged between the air storage cylinder and the working cylinder, so that the air tightness is improved, and larger refuting force is obtained.

Drawings

Fig. 1 is a schematic cross-sectional view of a single cylinder shock absorber with an external reservoir according to an embodiment of the present invention.

Fig. 2 is a second schematic cross-sectional view of a single cylinder damper with an external reservoir in accordance with an embodiment of the present invention.

1. A gas storage cylinder; 2. a working cylinder; 3. a floating piston; 4. an oil storage chamber; 5. a gas working chamber; 6. a piston assembly; 7. a communicating hole; 8. an outer cylinder; 9. a limiting ring; 10. and sealing the rubber ring.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Examples

With reference to the attached drawings 1-2, the single-cylinder shock absorber with the external air reservoir comprises a working cylinder 2 used for containing oil and gas, a floating piston 3 and a piston assembly 6 are arranged in the working cylinder 2, the floating piston is used for separating the oil and the gas, the piston assembly is in sliding connection with the floating piston, an oil reservoir cavity 4 and a gas working cavity 5 are respectively arranged in cavities where the oil and the gas are located, an air reservoir 1 communicated with the gas working cavity 5 is arranged outside the working cylinder 2, the air reservoir 1 is of a flat structure and is arranged in parallel to the outer surface of the working cylinder 2, and a sealing structure is arranged at the edge of the air reservoir 1.

The working cylinder 2 is the main working element of the shock absorber, when the piston assembly 6 is subjected to external force, the working cylinder 2 can slide in the working cylinder, oil liquid of the working cylinder 2 passes through the through holes of the piston valve and is arranged on the piston valve of the piston assembly 6, certain damping force can be formed by the oil liquid through the through holes, the oil liquid can also push the floating piston 3, gas in the gas working chamber 5 is compressed and enters the gas storage cylinder 1 through the communication hole 7, the aperture of the communication hole 7 is small, the gas passing rate is limited, certain refuting force can be formed, compared with a conventional single-cylinder shock absorber, the damping force or the refuting force of the device is greatly improved, the length of a machine body is not changed, and the installation size of the appearance is not changed. In the application aspect, the single-cylinder structure is successfully applied to the shock absorber with a short machine length, such as a cabin shock absorber, and the application range of the single-cylinder shock absorber is expanded. Under the condition that the working cylinder 2 is short and the air storage pressure is insufficient, the air storage cylinder 1 is additionally arranged on the periphery of the working cylinder 2, the air storage capacity and the air storage volume are improved, meanwhile, the air storage cylinder 1 can be enlarged according to the air storage requirement, and internal fillers can be added in the air storage cylinder 1 to meet the air pressure requirement in the air storage cylinder 1. The structure can be used for damping with high refuting force, the refuting force is less than or equal to 1500N, and the refuting force of the conventional single-cylinder damper is less than or equal to 800N. The air storage cylinders 1 are distributed along the outer edge of the periphery of the working cylinder 2, and the material of the working cylinder 2 can be rigid or elastic materials such as metal, rubber, plastic, composite materials and the like.

The sealing structure comprises a sealing ring and a groove which are matched, the width of the cross section of the sealing ring is larger than the depth of the groove, and the sealing ring is wider than the depth of the groove, so that the sealing ring can be in an extrusion state in the groove, and the sealing effect is better. The other gasket that is equipped with of sealing washer, the gasket is located in the recess, further reduce the space in the recess for the sealing washer extrusion force in the recess is bigger, is difficult for the seepage more, directly sets up little groove seal circle and is difficult for installing into, and increases the gasket and makes the sealing washer install easily.

The air storage cylinder 1 and the working cylinder 2 are in interference press fit. And a limiting ring 9 matched with the air storage cylinder 1 is arranged on the outer side of the working cylinder 2 and used for limiting the air storage cylinder 1 and preventing the air storage cylinder 1 from being too far inward.

An outer cylinder 8 is arranged outside the air storage cylinder 1, the outer cylinder 8 is connected with the working cylinder 2, and the outer cylinder 8 is used for protecting the working cylinder 2 and the air storage cylinder 1. Urceolus 8 with connect through the sealing connection piece between the working cylinder 2, the sealing connection piece towards urceolus 8 with the both sides of working cylinder 2 all are equipped with sealing rubber circle 10 for improve sealed effect. The empty cavity at the upper part outside the working cylinder 2, namely the space between the working cylinder 2 and the outer cylinder 8, can be air or oil liquid, and the oil liquid can play a role of cooling when the shock absorber is used.

The outer edge of the air storage cylinder 1 is provided with a chamfer structure for reducing burrs, avoiding scratching workers during installation and improving the appearance attractiveness of the device.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The single-cylinder shock absorber with the external air storage cylinder is characterized by comprising a working cylinder for containing oil and gas, wherein a floating piston for separating the oil and the gas and a piston assembly in sliding connection are arranged in the working cylinder, cavities in which the oil and the gas are located are an oil storage cavity and a gas working cavity respectively, the air storage cylinder communicated with the gas working cavity is arranged outside the working cylinder, the air storage cylinder is of a flat structure and is arranged in parallel to the outer surface of the working cylinder, and a sealing structure is arranged at the edge of the air storage cylinder.

2. The external single cylinder damper of claim 1, wherein the sealing structure comprises a sealing ring and a groove which are matched, and the cross-sectional width of the sealing ring is larger than the depth of the groove.

3. The external single cylinder damper of claim 2, wherein a gasket is disposed adjacent to said seal ring, said gasket being disposed within said groove.

4. The external single cylinder damper of the air cylinder according to claim 1, characterized in that a stop collar matched with the air cylinder is arranged on the outer side of the working cylinder.

5. The single cylinder damper with an externally mounted reservoir cylinder as set forth in claim 4, wherein said reservoir cylinder and said working cylinder are press-fitted in interference fit.

6. The external single cylinder damper of claim 1, wherein the reservoir has an outer cylinder attached to the working cylinder.

7. The external single cylinder damper of the air cylinder according to claim 6, characterized in that the outer cylinder and the working cylinder are connected through a sealing connecting block, and sealing rings are arranged on two sides of the sealing connecting block facing the outer cylinder and the working cylinder.

8. The externally mounted single cylinder damper for a reservoir according to any one of claims 1 to 7 wherein the outer edge of the reservoir is chamfered.