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Underground air door opening device and its pneumatic control interlocking system

A door opening device and damper technology, which is applied in mine/tunnel ventilation, fluid pressure actuation devices, door/window accessories, etc. It can solve the problems of injury accidents and damper failure to meet safety requirements, and achieve stable performance and save manpower , the effect of reducing the damage rate

Active Publication Date: 2017-02-01
淮北立兴工矿设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And when pedestrians and vehicles pass through the damper at the same time, it is very easy to cause injury accidents. This damper with many hidden dangers and disadvantages can no longer meet the relevant safety requirements proposed by the coal mine safety and quality standardization.

Method used

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  • Underground air door opening device and its pneumatic control interlocking system
  • Underground air door opening device and its pneumatic control interlocking system
  • Underground air door opening device and its pneumatic control interlocking system

Examples

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Embodiment Construction

[0024] Below in conjunction with embodiment the present invention is further described.

[0025] Such as Figure 2 to Figure 6 A kind of downhole damper door opening device shown, it comprises damper 1, and one side of damper 1 is hinged on the roadway side wall, has wicket 3 on described damper 1, and one side of wicket 3 is hinged on wicket On the door frame 2, the hinge shaft of the small door 3 is on the same side as the hinge shaft of the air door 1. When the door is closed, the small door 3 and the small door frame 2 are hermetically bonded, and the small door frame 2 is sealed and fixed on the air door 1. The small door frame 2, the limit frame 9 is fixed, and the inside of the limit frame 9 leaves a space for the wicket 3 to be opened and prevents its opening angle from being greater than 90 degrees, so that the wicket will be blocked by the limit frame 9 when the wicket is opened to a certain extent, thereby driving the entire damper Open. A pulley I10 is installed ...

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Abstract

The invention discloses a downhole air door opening device and a pneumatic control interlocking system thereof, belonging to the technical field of downhole air door control. The downhole air door opening device of the invention comprises an air door, a small door is opened on the air door, a limit frame is fixed on the door frame of the small door, and a wire rope on the small door is connected to the air cylinder through the limit frame, the well wall and the pulley system of the air cylinder, The pneumatic control interlocking system includes a gas path and b gas path. The a gas path and b gas path have the same structure. It consists of valve, two-position three-way single air control valve and pneumatic button. The invention realizes the automatic switching of the downhole air door for passing vehicles and people, can effectively avoid the phenomenon of "air door hitting people" of the impact air door, and eliminates the potential safety hazard in this respect.

Description

technical field [0001] The invention relates to a pneumatic control device for opening and closing an underground damper, which belongs to the technical field of downhole damper control. Background technique [0002] At present, the damper for passing vehicles in underground coal mines mostly adopts a plunger type or a percussion type damper. The disadvantages of this kind of damper are as follows: when the electric locomotive passes through the damper, the mechanical wear is relatively large, and the damage rate of the damper is high. If the locomotive travels too fast, the damper may be damaged. If the damaged damper is not repaired in time, it will not only affect the ventilation standard , It may also cause a short circuit of the air flow in the ventilation system and cause an accident. When pedestrians pass through the damper, it takes a lot of effort to open the damper due to the large negative pressure. And when pedestrians and vehicles pass through the damper at th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/10E21F1/12E05F15/53F15B13/02
Inventor 纵立苹李怀军
Owner 淮北立兴工矿设备有限公司
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