Energy absorbing and rebounding disengagement preventing door stop

A technology of bulletproof and collision head, which is applied in the field of door touches, which can solve the problems of fragile door touches and affecting the service life of door touches

Pending Publication Date: 2020-05-12
张秦鸣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the door is opened, in order to prevent the door from turning freely under the influence of external force, a door touch is usually set between the lower back of the door and the wall. The current door touch mainly uses the magnetic force to attract the two parts of the suction seat and the suction column together. Fix the door, if the door rotates fast during suction, there will be a knocking sound between the suction seat and the suction column, and it is easy to damage the door touch and affect the service life of the door touch

Method used

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  • Energy absorbing and rebounding disengagement preventing door stop
  • Energy absorbing and rebounding disengagement preventing door stop
  • Energy absorbing and rebounding disengagement preventing door stop

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Such as Figure 1-5 As shown, the energy-absorbing bulletproof door bumper includes a seat body 1 and a columnar collision head 2. The seat body 1 has a stroke cavity 3, and the inner end of the collision head 2 is slidably fitted in the stroke cavity 3. The stroke cavity 3 passes through the collision The fit gap between the head 2 and the seat body 1 communicates with the outside world. A damping member 4 is provided between the inner end of the collision head 2 and the seat body 1 to prevent the collision head 2 from sliding into the seat body 1. The peripheral sleeve of the collision head 2 A sealing ring 5 is provided, and damping oil or lubricating oil is applied between the sealing ring 5 and the side wall of the stroke chamber 3 to make the work more stable. Between the head 2 and the inner side wall of the stroke chamber 3, when the collision head 2 slides toward the seat body 1, the sealing ring 5 can form a connecting air passage 6 with the collision head 2 o...

Embodiment 2

[0079] Such as Figure 7-11As shown, this embodiment is basically the same as Embodiment 1, except that the outer peripheral surface of the collision head 2 has a limit ring groove 21 extending in the circumferential direction, and the sealing ring 5 is located in the limit ring groove 21 and can move along the collision direction. The head 2 reciprocates in the axial direction, the sealing ring 5 is made of soft material and its outer edge is sealed against the inner wall of the stroke chamber 3, and the side of the sealing ring 5 close to the outer end of the collision head 2 has several circumferentially spaced As for the support blocks 54 , when the support blocks 54 abut against the inner sidewall of the limiting ring groove 21 , the space between two adjacent support blocks 54 forms the air passage 6 . By setting the limit ring groove 21 extending in the circumferential direction on the outer peripheral surface of the collision head 2, the seal ring 5 is located in the l...

Embodiment 3

[0082] Such as Figure 12-15 As shown, this embodiment is basically the same as Embodiment 2, the difference is that: the side wall of the limiting ring groove 21 near the outer end of the collision head 2 has a number of supporting teeth 22, when the sealing ring 5 and the supporting teeth 22 abut against The space between two adjacent supporting teeth 22 forms the air passage 6 . By setting the limit ring groove 21 extending in the circumferential direction on the outer peripheral surface of the collision head 2, the seal ring 5 is located in the limit ring groove 21 and can reciprocate along the axial direction of the collision head 2, and the seal ring 5 is The outer edge is made of soft material and is sealed against the inner side wall of the stroke chamber 3. There are a number of supporting teeth 22 on the side wall of the limit ring groove 21 near the outer end of the collision head 2, so that when the collision head 2 moves toward the inside of the seat body 1 When ...

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PUM

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Abstract

The invention provides an energy absorbing and rebounding disengagement preventing door stop, and belongs to the technical field of door stops. The technical problem that an existing door stop structure is probably subjected to rebounding disengagement when impact force of a door body is large is solved. The energy absorbing and rebounding disengagement preventing door stop comprises a seat body and a collision head. A travel cavity is formed in the seat body, the inner end of the collision head slidingly cooperates in the travel cavity, the travel cavity communicates with the exterior, a damping part is arranged between the inner end of the collision head and the seat body, the periphery of the collision head is sleeved with a sealing ring, when the collision head slides towards the exterior of the seat body, the sealing ring abuts against the portion between the collision head and the inner side wall of the travel cavity in a sealing manner, when the collision head slides towards theinterior of the seat body, an air pass channel can be formed between the sealing ring and the collision head or the inner side wall of the travel cavity, and cavities, on the two sides of the sealingring, of the travel cavity communicate with each other. According to the energy absorbing and rebounding disengagement preventing door stop, the door body can be effectively prevented from being subjected to rebounding disengagement.

Description

technical field [0001] The invention belongs to the technical field of door touches, and relates to an energy-absorbing bulletproof door touch. Background technique [0002] When the door is opened, in order to prevent the door from turning freely under the influence of external force, a door touch is usually set between the lower back of the door and the wall. The current door touch mainly uses the magnetic force to attract the two parts of the suction seat and the suction column together. Fix the door, if the door rotates faster during suction, there will be a knocking sound between the suction seat and the suction column, and it is easy to damage the door touch and affect the service life of the door touch. In order to solve this problem, technicians in the field add buffer components such as springs to the door touch, and absorb the impact of the door collision through the deformation of the buffer components to achieve the effect of silence. [0003] The applicant has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05C17/56E05C17/52E05F5/08
CPCE05C17/52E05C17/56E05F5/08
Inventor 张秦鸣
Owner 张秦鸣
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