Locking device for air doors

A technology of locking device and air door, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc., can solve the safety hazards of air doors and other problems, and achieve the effect of reducing safety hazards and protecting personal safety

Inactive Publication Date: 2017-02-22
XINAN COAL IND ZAOZHUANG COAL MINING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention relates to a damper locking device, which solves the safety hazards existing in the opening process of the existing damper

Method used

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  • Locking device for air doors
  • Locking device for air doors

Examples

Experimental program
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Embodiment Construction

[0014] Such as figure 1 The damper locking device shown includes a steel wire rope 1 connected to the damper. After the steel wire rope 1 winds around the fixed pulley 2, a suspension rod 3 is set at the end. In the device, the movement of the boom 3 in the up and down direction is restricted. A control valve 4 is arranged on the upper part of the two booms 3, and the valve core 8 of the control valve 4 is pushed by the pull-up boom 3 after one side boom 3 is pulled up. to the top of the other boom and lock that boom.

[0015] The limiter is a fixed fixed ring 5 that hangs the suspension rod 3 through the middle limit hole 6, and the fixed ring 5 of each suspension rod 3 is at least two groups, and the fixed ring 5 is fixed on the frame plate 7, and the frame plate 7 Fixed on the roadway wall. The control valve 4 includes a spool 8 that can slide horizontally on the boom 3 along the horizontal direction of the booms. There are at least two sets of springs 9 on both sides of ...

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PUM

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Abstract

The invention relates to a locking device for air doors. The locking device for air doors belongs to a safety device of mine ventilation doors. The locking device for air doors comprises a wire rope connected with the air doors, and the wire rope is arranged in an underground tunnel and behind a fixed pulley. A hanging pole is arranged at the end of the wire rope. The locking device for air doors is characterized in that two air doors connected with the hanging pole are arranged side-by-side in a limiting device and restrict the up-down movement of the hanging pole. A control valve is arranged at the upper part of the two hanging poles. A valve core of the control valve is pushed to the upper part of the other hanging pole and locks the hanging pole by the hanging pole which is pulled up. The locking device of air doors has the advantages of replacing a simple brake locking with a hanging bucket, utilizing the locking with hanging ropes and a broke valve.

Description

technical field [0001] The invention relates to a damper locking and interlocking device, which belongs to safety equipment for mine ventilation dampers. Background technique [0002] The pair-pull damper currently used is composed of interlocking ropes, pulleys, and buckets. When both sides are pushed and pulled at the same time, both sides can be opened to a certain distance. At this time, a crush accident may occur if a person passes by forcibly, posing a safety hazard. Contents of the invention [0003] The invention relates to a damper locking device, which solves the safety hazards existing in the opening process of the existing damper. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a damper locking device, including a steel wire rope connected to the damper, the steel wire rope is wound around the roadway to set the pulley and then the suspension rod is set at the end. The suspenders connected to the wire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/10
CPCE21F1/10
Inventor 王龙李付海刘含东李安国邵波侯京凯王冀李开景高旭波魏永福黄西亮
Owner XINAN COAL IND ZAOZHUANG COAL MINING GROUP
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