Stable pressure buffering type damper

Abstract

The stable pressure-buffering type damper comprises a piston cylinder, the piston cylinder is connected to an outer sleeve cylinder in a sliding mode, an outer pressure-buffering elastic piece is arranged on the piston cylinder in a sleeved mode and correspondingly compresses for buffering, and the two ends of the outer pressure-buffering elastic piece abut against an end abutting body of the piston cylinder and an outer cylinder sleeve respectively. And a piston rod extension pressure-buffering elastic body is arranged at the end, corresponding to the piston rod, of the piston to buffer upward movement of the piston, so that the corresponding damper is buffered when extending to the longest stroke, and a stable pressure-buffering type damping structure for avoiding instant impact is formed.

Description

Technical Field

[0001] This utility model relates to damping devices, and particularly to the field of gas spring technology, specifically, a stable pressure-relieving damper. Background Technology

[0002] Compared to traditional mechanical springs, gas springs have advantages such as small size, large elastic force, long stroke, stable operation, high precision, long life, smooth elasticity curve, and no need for preload.

[0003] Gas springs in the prior art generally include a cylinder, a threaded sleeve fixedly installed at the upper end of the cylinder, and a plunger rod installed in the cylinder body and passing through the threaded sleeve. A sealing ring is provided on the outside of the threaded sleeve, which is in sealing contact with the inner wall of the cylinder. When working, the plunger rod moves downward under force and forms an elastic support force; when the force is released, the plunger rod returns to its original position.

[0004] However, in some cases, when the gas spring is compressed to its shortest stroke or extended to its longest stroke, there is a momentary impact, which affects the service life of the gas spring.

[0005] Therefore, it is necessary to provide a stable, pressure-relieving damper to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a stable, pressure-relieving damper.

[0007] The technical solution is as follows:

[0008] A stable pressure-relieving damper includes a piston cylinder slidably connected to an outer cylinder, and an external pressure-relieving elastic element is sleeved on the piston cylinder to buffer compression. The two ends of the external pressure-relieving elastic element support the end support body of the piston cylinder and the outer cylinder sleeve, respectively. A piston rod extension pressure-relieving elastic element is provided at the piston rod end to buffer the piston's upward movement, thereby buffering when the damper extends to its longest stroke, forming a stable pressure-relieving damping structure that avoids instantaneous impact.

[0009] Furthermore, the piston cylinder is equipped with a sliding limit ring corresponding to the outer cylinder liner.

[0010] Furthermore, the outer cylinder liner is connected by a threaded connection to an external cylinder liner clip that works in conjunction with a sliding limit ring and an external pressure-relieving elastic element.

[0011] Furthermore, the sliding limit ring is movable and adjustable on the piston cylinder by means of threaded rotation, forming an outer cylinder liner sliding stroke adjustment structure.

[0012] Furthermore, the piston rod penetrates the outer cylinder liner and is connected to an external piston rod connector.

[0013] Furthermore, the end support body is provided with an external fixing joint, and the piston cylinder is provided with a fixing sealing module corresponding to the end support body, and a telescopic guide sealing module is provided corresponding to the piston rod.

[0014] Compared with the prior art, this utility model, through a stable and pressure-relieving damping structure that avoids instantaneous impact, prevents the damper from being affected by instantaneous impact when it is compressed to its shortest stroke or extended to its longest stroke, thus ensuring the service life of the damper. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] Example:

[0017] Please see Figure 1 This embodiment demonstrates a stable pressure-relieving damper, including a piston cylinder 1, which is slidably connected to an outer cylinder 2. An external pressure-relieving elastic element 3 is sleeved on the piston cylinder 1 to buffer compression. The two ends of the external pressure-relieving elastic element 3 respectively support the end support body 11 of the piston cylinder 1 and the outer cylinder sleeve 2. A piston rod extension pressure-relieving elastic element 6 is provided at the piston rod 5 end of the piston 4 to buffer the upward movement of the piston 4, thereby buffering when the damper extends to its longest stroke, forming a stable pressure-relieving damping structure that avoids instantaneous impact.

[0018] The piston cylinder 1 is provided with a sliding limit ring 7 corresponding to the outer cylinder sleeve.

[0019] The outer cylinder liner 2 is connected by a threaded connection to an outer cylinder liner external clip 8 that works with a sliding limit ring 7 and an external pressure relief elastic element 3.

[0020] The sliding limit ring 7 is movable and adjustable on the piston cylinder 1 by means of threaded rotation, forming an outer cylinder sleeve sliding stroke adjustment structure.

[0021] The piston rod 5 penetrates the outer cylinder liner 2 and is connected to an external piston rod connector 51.

[0022] An external connector 12 for fixing part is provided on the end support body 11, and a fixing part sealing module 9 is provided on the piston cylinder 1 corresponding to the end support body 11, and a telescopic guide sealing module 10 is provided on the piston rod 5.

[0023] Compared with the prior art, this utility model, through a stable and pressure-relieving damping structure that avoids instantaneous impact, prevents the damper from being affected by instantaneous impact when it is compressed to its shortest stroke or extended to its longest stroke, thus ensuring the service life of the damper.

[0024] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A stable underdamped snubber, characterized by: The piston cylinder is slidably connected to the outer sleeve cylinder, and an external slow compression elastic member is sleeved on the piston cylinder to buffer compression, the two ends of the external slow compression elastic member abut against the end abutment body of the piston cylinder and the outer sleeve, and the piston is provided with a piston rod elongation slow compression elastic body at the end of the piston rod to buffer the upward movement of the piston, thereby buffering when the damper is elongated to the longest stroke, forming a stable slow compression damper structure that avoids instantaneous impact.

2. A stable underdamped damper according to claim 1, characterized in that: The piston cylinder is provided with a sliding limiting ring corresponding to the outer sleeve.

3. A stable underdamped dashpot according to claim 2, wherein: The outer sleeve is connected with an outer sleeve external clamp for cooperating with the sliding limiting ring and the external slow compression elastic member through a threaded connection mode.

4. A stable underdamped damper according to claim 3, wherein: The sliding limiting ring is movably adjusted on the piston cylinder through a threaded rotation mode, forming an outer sleeve sliding stroke adjustment structure.

5. A stable underdamped dashpot according to claim 4 wherein: The piston rod penetrates the outer sleeve and is connected with a piston rod external joint.

6. A stable underdamped dashpot according to claim 5 wherein: The end abutment body is provided with a fixed part external joint, and the piston cylinder is provided with a fixed part sealing module corresponding to the end abutment body, and is provided with an extension guide part sealing module corresponding to the piston rod.

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