Floor spring for door opening delaying

A ground spring and delay valve technology, applied in the field of door closing devices, can solve the problems of slow cam rotation, reduced safety performance, slow closing speed, etc., and achieve the effect of delaying door opening and preventing collision

Inactive Publication Date: 2015-11-04
佛山市奥达金属制品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existing floor spring only has the function of closing the door delay, that is, the inside of the floor spring has a buffer force within a certain angle range before the door is completely closed, so that the cam rotates slowly, so that the closing speed of the door is relatively slow; because there is no BC function ( Door opening delay function), so that when the door does not have the door opening delay function, it is easy to collide with interfering objects when opening the door, and the safety performance is reduced

Method used

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] refer to figure 1 : Door opening delay floor spring, including a housing 1 and a buffer device 2, the buffer device 2 is located in the housing 1, the buffer device 2 includes a first piston 21, and the housing 1 is provided with a first oil chamber 3 and a second oil chamber 4. The first oil chamber 3 and the second oil chamber 4 are located on both sides of the buffer device 2 respectively. The housing 1 is provided with a main oil passage 5, the first oil chamber 3 and the second oil chamber 4 are connected through the main oil passage 5, the main oil passage 5 is provided with a regulating valve 6, and the first piston 21 is provided with a controllable side oil passage. Road 7, the controllable side oil road 7 communicates with the main oil road 5. When the door-opening delay floor spring of the present invention is in use, the door is installed...

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Abstract

The invention discloses a floor spring for door opening delaying. The floor spring for door opening delaying comprises a shell and a buffering device. The buffering device is arranged in the shell. The buffering device comprises a first piston. A first oil cavity and a second oil cavity are arranged in the shell and located on the two sides of the buffering device respectively. The shell is provided with a main oil path. The first oil cavity and the second oil cavity are communicated through the main oil path. A regulating valve is arranged on the main oil path. The first piston is provided with a controllable side oil path, and the controllable side oil path is communicated with the main oil path. During door opening, hydraulic oil flows into the first oil cavity from the second oil cavity through the controllable side oil path; the regulating valve is arranged on the main oil path and the controllable side oil path is arranged on the first piston so that the flowing speed of the hydraulic oil flowing to the controllable side oil path can be regulated and controlled through the regulating valve, and accordingly the flowing speed of the hydraulic oil flowing into the two oil cavities is controlled, the resistance is increased within a certain angle range during door opening, then door opening delaying is achieved, and a door is prevented from colliding with an interference object when the door is opened.

Description

technical field [0001] The invention belongs to a door closing device, in particular to a door opening delay floor spring. Background technique [0002] When the floor spring is in use, the rotation of the door drives the rotation of the cam in the floor spring, and the floor spring bears the load on the door, and the door can rotate on the floor spring to realize opening and closing. But the existing floor springs only have the function of closing the door delay, that is, the inside of the floor spring has a buffer force within a certain angle range before the door is completely closed, so that the cam rotates slowly, so that the closing speed of the door is relatively slow; because there is no BC function ( Door opening delay function), so that when the door does not have the door opening delay function, it is easy to collide with interfering objects when opening the door, and the safety performance is reduced. Contents of the invention [0003] The object of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F3/04
Inventor 许文财
Owner 佛山市奥达金属制品有限公司
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