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Door pinching prevention device

An anti-pinch device and door defense technology, which is used in door/window accessories, switches with brakes, buildings, etc. The speed of closing the door, the effect of preventing children or the elderly from being caught

Active Publication Date: 2012-10-03
ZHEJIANG JUNMP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The interior doors of existing high-rise buildings are often blown by strong winds and quickly closed, and the impact of closing the door is relatively large. If children or the elderly stand on the door frame, or put their hands on the door frame, it is easy to be pinched by the movable door

Method used

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Embodiment Construction

[0008] Below according to accompanying drawing and specific embodiment the present invention is further described:

[0009] figure 1 The structure schematic diagram of the door anti-pinch device shown, the door anti-pinch device includes a movable door 1 and a door frame 2, the movable door 1 and the door frame 2 are connected by a hinge 3, the movable door 1 is provided with an anti-pinch device 4, and the anti-pinch device 4 Fixed on the movable door 1 on one side of the hinge 3, the anti-pinch device 4 includes a damping cylinder 5 and a control cylinder 6, the cylinder seats of the damping cylinder 5 and the control cylinder 6 are fixedly connected with the movable door 1, the damping cylinder 5 and the control cylinder 6 Hydraulic oil is provided, and the hydraulic oil fills the cavity in the damping cylinder 5 and the control cylinder 6. The bottom of the damping cylinder 5 is provided with a first joint 7, and the bottom of the control cylinder 6 is provided with a seco...

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Abstract

The invention discloses a door pinching prevention device. The door pinching prevention device is provided with a pinching prevention device which is provided with a damping cylinder and a control cylinder; the damping cylinder and the control cylinder contain hydraulic oil; when strong wind blows a movable door to ensure that the movable door and a door frame are approximately closed, a second piston of the control cylinder is moved to the position for sealing a second left joint by the second piston, and then the hydraulic oil is sealed in a first left cavity of the damping cylinder and a second left cavity of the control cylinder; with continuous closing of the moving door, the pressure of the hydraulic oil sealed in the first left cavity of the damping cylinder and the second left cavity of the control cylinder is continuously increased so as to stop a first piston and the second piston from moving. The door pinching prevention device disclosed by the invention has the advantages that a door frame is supported by utilizing a first piston rod and a second piston rod, so that the impact force in opening and closing the moving door is reduced, the door closing speed is reduced, and children or old people are prevented from being pinched by fast closing of the moving door.

Description

Technical field [0001] The invention relates to an anti-pinch device, in particular to a door anti-pinch device. Background technique [0002] The interior doors of existing high-rise buildings are often blown by strong winds and quickly closed, and the impact of closing the door is relatively large. If children or the elderly stand on the door frame, or put their hands on the door frame, it is easy to be pinched by the movable door . Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a door anti-pinch device to prevent the movable door from being quickly closed by strong winds, reduce the impact force of closing the door, slow down the speed of closing the door, and prevent the movable door from pinching children or the elderly. [0004] The technical solution adopted by the present invention is: the door anti-pinch device includes a dodge door and a door frame, the dodge door and the door ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F3/10
Inventor 李瑞英
Owner ZHEJIANG JUNMP TECH
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