CN210889881U - High-performance sectional type damping air spring - Google Patents
High-performance sectional type damping air spring Download PDFInfo
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- CN210889881U CN210889881U CN201921582748.1U CN201921582748U CN210889881U CN 210889881 U CN210889881 U CN 210889881U CN 201921582748 U CN201921582748 U CN 201921582748U CN 210889881 U CN210889881 U CN 210889881U
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Abstract
The utility model discloses a high performance sectional type damping air spring, including cylinder body, piston assembly, piston rod and shutoff, the cylinder body is long tube-shape, the rear end of cylinder body passes through the shutoff is sealed, be equipped with the uide bushing in the cylinder body, the uide bushing is fixed in the cylinder body front end; the piston assembly is in sliding sealing fit with the inner side wall of the cylinder body, the piston assembly is fixedly arranged at the rear end of the piston rod, the front end of the piston rod penetrates out of the cylinder body and is in sliding sealing fit with the guide sleeve, a plurality of side through grooves are formed in the inner side wall of the cylinder body, and the side through grooves are axially arranged along the cylinder body at intervals; in the axial direction of the cylinder body, the length of each bypass groove is larger than the length of a contact part of the piston assembly and the inner side wall of the cylinder body. The utility model discloses possess simple structure, simple to operate's advantage, and can stop on different stroke positions.
Description
Technical Field
The utility model relates to an air spring technical field, in particular to high performance sectional type damping air spring.
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 mainly composed of pressure cylinder, piston rod, piston, sealing guide sleeve, filler and joint. The principle is that inert gas or oil-gas mixture is filled in a closed pressure cylinder, the pressure in a cavity is several times or dozens of times higher than the atmospheric pressure, and the motion of a piston rod is realized by utilizing the pressure difference generated by the cross section area of the piston rod smaller than that of the piston. The existing gas spring on the market is mainly free, can only stop at two shortest or longest positions, cannot stop automatically in the process of travel, and has great limitation in use, for example, the gas spring cannot be suitable for opening and closing control of doors and windows; some self-locking and randomly-stopped gas springs can achieve the purpose of stopping at any position in the stroke, but are generally realized through a release mechanism or a controller, so that the difficulty of installation and debugging is increased, and the cost is increased to a certain extent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a high performance sectional type damping air spring, possess simple structure, simple to operate's advantage, and realized stopping on different stroke positions.
The utility model provides a technical scheme that its technical problem adopted is: a high-performance sectional type damping gas spring comprises a cylinder body, a piston assembly, a piston rod and a plug, wherein the cylinder body is in a long cylindrical shape, the rear end of the cylinder body is sealed through the plug, a guide sleeve is arranged in the cylinder body, and the guide sleeve is fixed at the front end of the cylinder body; the piston assembly is in sliding sealing fit with the inner side wall of the cylinder body, the piston assembly is fixedly arranged at the rear end of the piston rod, the front end of the piston rod penetrates out of the cylinder body and is in sliding sealing fit with the guide sleeve, a plurality of side through grooves are formed in the inner side wall of the cylinder body, and the side through grooves are axially arranged along the cylinder body at intervals; in the axial direction of the cylinder body, the length of each bypass groove is larger than the length of a contact part of the piston assembly and the inner side wall of the cylinder body.
Furthermore, the lateral wall of the cylinder body protrudes outwards to form the side through groove, so that the manufacturing is convenient, and the cost is reduced.
Further, a spacer sleeve and a bowl-shaped ring are further arranged in the cylinder body, the spacer sleeve is riveted between the piston assembly and the guide sleeve, and the spacer sleeve is sleeved on the piston rod; the bowl type circle set up in the uide bushing with between the spacer, bowl type circle with piston rod sliding seal cooperation improves the leakproofness of cylinder body, makes the piston rod steady motion, improves the performance of this air spring.
Furthermore, a rear connector is fixed on the plug, and a front connector is fixed at the front end of the piston rod, so that the gas spring is convenient to mount and use.
Furthermore, the piston assembly is fixed at the rear end of the piston rod through a nut, so that the piston assembly is convenient to mount.
Further, the piston assembly comprises a piston body, a rubber ring and a gasket; the piston body is sleeved at the rear end of the piston rod; the rubber ring is in sliding sealing fit with the inner side wall of the cylinder body, and the piston body is sleeved with the rubber ring; the gasket is equipped with two, two the gasket set up respectively in piston body both sides.
The utility model has the advantages that: the inner side wall of the cylinder body is provided with a plurality of side through grooves which are arranged at intervals along the axial direction of the cylinder body; in the axial direction of the cylinder body, the length of each bypass groove is greater than the contact length of the piston assembly and the inner side wall of the cylinder body; when the piston assembly needs to stop at different stroke positions, the piston assembly is positioned in the middle of the adjacent bypass grooves and is in sealing contact with the inner side wall of the cylinder body by applying larger external force, so that the piston assembly stops at the middle of the adjacent bypass grooves, and the piston assembly stops at the position of the bypass grooves similarly, and has the advantages of simple structure and convenient installation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic sectional view at a-a in fig. 1.
Shown in the figure: 1-a cylinder body; 11-a bypass groove; 2-a piston assembly; 21-a piston body; 22-rubber ring; 23-a gasket; 3-a piston rod; 31-front joint; 4-plugging; 41-rear joint; 5, a guide sleeve; 6-spacer bush; 7-bowl shape ring.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:
as shown in fig. 1 and 2, a high-performance sectional type damping gas spring comprises a cylinder body 1, a piston assembly 2, a piston rod 3 and a plug 4, wherein the cylinder body 1 is in a long cylindrical shape, the rear end of the cylinder body 1 is sealed by the plug 4, a guide sleeve 5 is arranged in the cylinder body 1, and the guide sleeve 5 is fixed at the front end of the cylinder body 1; the piston assembly 2 is in sliding sealing fit with the inner side wall of the cylinder body 1, the piston assembly 2 is fixedly arranged at the rear end of the piston rod 3, the front end of the piston rod 3 penetrates through the cylinder body 1 and is in sliding sealing fit with the guide sleeve 5, a plurality of side through grooves 11 are formed in the inner side wall of the cylinder body 1, and the side through grooves 11 are axially arranged at intervals along the cylinder body 1; the length of the bypass grooves 11 is greater than the length of the portion of the piston assembly 2 in contact with the inner side wall of the cylinder 1 in the axial direction of the cylinder 1.
The side wall of the cylinder body 1 protrudes outwards to form a bypass groove 11, and the bypass groove 11 is formed through riveting or stamping technology, so that the cylinder body is convenient to process and manufacture.
A spacer bush 6 and a bowl-shaped ring 7 are further arranged in the cylinder body 1, the spacer bush 6 is riveted between the piston assembly 2 and the guide sleeve 5, and the spacer bush 6 is sleeved on the piston rod 3; the bowl-shaped ring 7 is arranged between the guide sleeve 5 and the spacer sleeve 6, and the bowl-shaped ring 7 is in sliding sealing fit with the piston rod 3, so that the air tightness of the cylinder body 1 is ensured, and gas leakage is avoided.
Specifically, the guide sleeve 5, the bowl-shaped ring 7 and the spacer bush 6 are sequentially installed in the cylinder body 1, and then the bowl-shaped ring 7 is riveted and fixed, so that the guide sleeve 5, the bowl-shaped ring 7 and the spacer bush 6 are fixed relative to the front end of the cylinder body 1.
A rear connector 41 is fixed on the plug 4, and a front connector 31 is fixed at the front end of the piston rod 3, so that the gas spring is conveniently connected to a position needing to be used, and the gas spring is convenient to mount and use.
The piston assembly 2 is fixed at the rear end of the piston rod 3 through a nut, so that the piston assembly is convenient to mount.
The piston assembly 2 comprises a piston body 21, a rubber ring 22 and a gasket 23; the piston body 21 is sleeved at the rear end of the piston rod 3; the rubber ring 22 is in sliding sealing fit with the inner side wall of the cylinder body 1, and the rubber ring 22 is sleeved on the piston body 21; the number of the gaskets 23 is two, and the two gaskets 23 are respectively arranged on two sides of the piston body 21.
Specifically, when in use, inert gas can be filled in the cylinder body 1, the piston assembly 2 divides the inner cavity of the cylinder body 1 into a rod cavity and a rodless cavity, when the rubber ring 22 on the piston assembly 2 is positioned at the position of the bypass groove 11, external force is applied to push the piston rod 3, the rodless cavity is in a pressurized state, the inert gas in the rodless cavity flows to the rod cavity through the bypass groove 11, so that the piston assembly 2 slowly slides relative to the cylinder body 1, when the rubber ring 22 is positioned in the middle of the adjacent bypass groove 11 and is in contact with the inner side wall of the cylinder body 1, the rubber ring 22 is relatively sealed with the inner side wall of the cylinder body 1, the inert gas in the rod cavity and the rodless cavity cannot flow, so that the piston assembly 2 stops relative to the cylinder body 1, only when the piston rod 3 is pushed by applying larger external force, the rubber ring 22 can be pushed to the position of the bypass groove 11, and similarly, when the piston assembly 2, the rubber ring 22 is positioned in the middle of the adjacent bypass grooves 1 by applying large external force and is in sealing contact with the inner side wall of the cylinder body 1, so that the piston assembly 2 is stopped at different stroke positions.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (6)
1. A high-performance sectional type damping gas spring comprises a cylinder body (1), a piston assembly (2), a piston rod (3) and a plug (4), wherein the cylinder body (1) is in a long cylindrical shape, the rear end of the cylinder body (1) is sealed through the plug (4), a guide sleeve (5) is arranged in the cylinder body (1), and the guide sleeve (5) is fixed at the front end of the cylinder body (1); piston assembly (2) with the inside wall sliding seal cooperation of cylinder body (1), piston assembly (2) fixed set up in the rear end of piston rod (3), the front end of piston rod (3) is worn out cylinder body (1) and with uide bushing (5) sliding seal cooperation, its characterized in that: a plurality of side through grooves (11) are formed in the inner side wall of the cylinder body (1), and the side through grooves (11) are axially arranged at intervals along the cylinder body (1); in the axial direction of the cylinder body (1), the length of the bypass grooves (11) is larger than that of the contact part of the piston assembly (2) and the inner side wall of the cylinder body (1).
2. The high performance segmented damped gas spring as set forth in claim 1 wherein: the side wall of the cylinder body (1) protrudes outwards to form the bypass groove (11).
3. The high performance segmented damped gas spring as set forth in claim 1 wherein: a spacer bush (6) and a bowl-shaped ring (7) are further arranged in the cylinder body (1), the spacer bush (6) is riveted between the piston assembly (2) and the guide sleeve (5), and the piston rod (3) is sleeved with the spacer bush (6); the bowl-shaped ring (7) is arranged between the guide sleeve (5) and the spacer sleeve (6), and the bowl-shaped ring (7) is in sliding sealing fit with the piston rod (3).
4. The high performance segmented damped gas spring as set forth in claim 1 wherein: a rear connector (41) is fixed on the plug (4), and a front connector (31) is fixed at the front end of the piston rod (3).
5. The high performance segmented damped gas spring as set forth in claim 1 wherein: the piston assembly (2) is fixed at the rear end of the piston rod (3) through a nut.
6. The high performance segmented damped gas spring as set forth in claim 1 wherein: the piston assembly (2) comprises a piston body (21), a rubber ring (22) and a gasket (23); the piston body (21) is sleeved at the rear end of the piston rod (3); the rubber ring (22) is in sliding sealing fit with the inner side wall of the cylinder body (1), and the piston body (21) is sleeved with the rubber ring (22); the number of the gaskets (23) is two, and the two gaskets (23) are respectively arranged on two sides of the piston body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921582748.1U CN210889881U (en) | 2019-09-23 | 2019-09-23 | High-performance sectional type damping air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921582748.1U CN210889881U (en) | 2019-09-23 | 2019-09-23 | High-performance sectional type damping air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889881U true CN210889881U (en) | 2020-06-30 |
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ID=71314303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921582748.1U Active CN210889881U (en) | 2019-09-23 | 2019-09-23 | High-performance sectional type damping air spring |
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| CN (1) | CN210889881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979337A (en) * | 2021-10-27 | 2022-01-28 | 徐州重型机械有限公司 | Crane jib pin mute locking device and jib |
-
2019
- 2019-09-23 CN CN201921582748.1U patent/CN210889881U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979337A (en) * | 2021-10-27 | 2022-01-28 | 徐州重型机械有限公司 | Crane jib pin mute locking device and jib |
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