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Damper with overload protection device

An overload protection and damper technology, applied in the bathroom field, can solve the problems of shell rupture, affecting the service life of the damper, and the shaft of the damper breaking, so as to prolong the service life and avoid the breaking of the shaft and the casing.

Pending Publication Date: 2017-12-15
XIAMEN DP PRECISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is easy to cause the shaft of the damper to break, the shell to crack and other irreversible damage, which seriously affects the service life of the damper

Method used

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  • Damper with overload protection device
  • Damper with overload protection device
  • Damper with overload protection device

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Experimental program
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Effect test

Embodiment Construction

[0015] The technical solutions and beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a damper with an overload protection device includes a housing 1 , a rotating shaft 2 and a piston 3 .

[0017] Wherein, the piston 3 is provided with an external thread, and the inner wall of the housing 1 is at least partially provided with an internal thread, and the piston 3 is arranged in the housing 1 and screwed with the housing 1 . The rotating shaft 2 and the housing 1 jointly form a closed cavity, and the cavity is filled with damping oil. The rotating shaft 2 includes a shaft handle 21, a driving section 22 and a connecting section 23 connecting the shaft handle 21 and the driving section 22. The rotating shaft 2 passes through the piston 3, and the driving section 22 is used to drive the piston 3 to rotate helically relative to the housing 1, and the driving section 22 i...

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Abstract

The invention relates to a damper with an overload protection device. The damper comprises a shell, a rotating shaft and a piston, wherein the piston is rotatably arranged in the shell, can rotate synchronously along with the rotating shaft, is longitudinally and movably arranged on the rotating shaft in a sleeving mode relative to the rotating shaft, and a gap for flowing of a viscous liquid is formed between the piston and the rotating shaft; a closed cavity is formed by the rotating shaft and the shell together; and the cavity is filled with damping oil. The damper with an overload protection device is characterized in that the rotating shaft is provided with a pressure relief opening and a pressure relief channel communicating with the cavity, and a flexible buffering piece is arranged in the pressure relief channel. According to the damper with the overload protection device, by adopting the structure, the damage to the damper caused by an impact torque under an abnormal using state can be greatly reduced, and the service life of the damper is prolonged.

Description

technical field [0001] The invention relates to the bathroom field, in particular to a damper with an overload protection device. Background technique [0002] During the actual use of the damper, there will be abnormal conditions in which the user quickly applies force in the damping direction. In this case, the damping shaft is subjected to a large impact torque, and the damping chamber is also subjected to a large internal hydraulic pressure. force. This will easily lead to irreversible damage such as breakage of the rotating shaft of the damper, cracking of the casing, etc., seriously affecting the service life of the damper. [0003] Therefore, the above structure needs to be further improved. Contents of the invention [0004] The object of the present invention is to provide a damper with an overload protection device, which can greatly reduce the damage to the damper caused by impact torque under abnormal use conditions, and improve the service life of the damper...

Claims

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Application Information

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IPC IPC(8): E05F3/04
CPCE05F3/04
Inventor 吴华峰吴晓建高翔
Owner XIAMEN DP PRECISION TECH CO LTD
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