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Automatic locking device for vertical shaft explosion-proof cover inverted ventilation

An automatic locking, explosion-proof cover technology, applied in mine/tunnel ventilation, non-mechanical transmission-operated locks, building locks, etc. and other problems to achieve the effect of preventing excessive sliding, reducing the incidence of accidents, and making the device simple and easy to implement.

Active Publication Date: 2019-05-31
河南大有能源股份有限公司跃进煤矿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The locking structure used in this solution is that the pressing tongue is in frictional contact with the explosion-proof door, and the fixation is achieved through friction. The effect is not ideal. When the wind is reversed, it is easy to push the explosion-proof door upwards under the action of positive pressure air flow, resulting in a short circuit of the air flow.
[0005] In summary, there are the following deficiencies in the prior art: 1. The locking operation effect is not increased when the main ventilator blows against the wind, which may easily cause safety hazards
2. The modification of the explosion-proof cover is relatively large, the cost is high, and the economic benefit is low

Method used

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  • Automatic locking device for vertical shaft explosion-proof cover inverted ventilation
  • Automatic locking device for vertical shaft explosion-proof cover inverted ventilation
  • Automatic locking device for vertical shaft explosion-proof cover inverted ventilation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An automatic locking device for anti-wind of shaft explosion-proof cover, such as figure 2 As shown, the automatic locking device is arranged around the edge of the explosion-proof cover 10, and is characterized in that it includes at least three sets of locking mechanisms uniformly arranged on the edge of the explosion-proof cover 10, and each set of locking mechanisms includes a pressing block 701 and a pad 702. The locking assembly 7, wherein, the pad 702 is fixed on the edge of the explosion-proof cover 10 by bolts, and it has an upward slope 703, and there is a certain angle between the slope 703 and the horizontal plane, and the smaller the angle is , the greater the vertical pressure of the pressure block 701 on the cushion block 702, the explosion-proof cover 10 will be locked under the action of force, which can effectively prevent the explosion-proof cover 10 from being pushed open by the positive pressure air flow in the reverse wind and cause a short circuit...

Embodiment 2

[0034] This embodiment is an improvement on the basis of Embodiment 1, as figure 1 and 4 As shown, a circle of L-shaped clamping plate 9 is arranged around the edge of the explosion-proof cover 10, and the L-shaped clamping plate 9 has a vertical plate 901 close to the edge of the explosion-proof cover 10 and a limiting plate 902 protruding above the inclined slope 703, The limiting plate 902 limits the limit position of the pressure block 701 under the push of the driving mechanism, and the limit position is that the bottom surface of the pressure block 701 and the inclined slope 703 are completely attached. It can effectively prevent the pressure block from sliding too far, and through the complete fit of the pressure block and the cushion block, the force of the pressure rod on the explosion-proof cover is more direct and accurate, and the locking of the explosion-proof cover can be effectively realized.

[0035] In order to further lock the explosion-proof cover 10, preve...

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PUM

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Abstract

The invention relates to an automatic locking device for vertical shaft explosion-proof cover inverted ventilation. The automatic locking device is arranged around the edge of an explosion-proof cover, and comprises at least three sets of locking mechanisms evenly arranged on the edge of the explosion-proof cover. Each locking mechanism comprising a pressing rod and a push air cylinder, wherein the upper portion of the pressing rod is drilled to be pivoted to a pressing rod support, and the bottom of the pressing rod is connected with locking equipment. Each locking assembly comprises a pressing block and a cushion block, wherein the pressing block is welded to the bottom of the pressing rod, and the cushion block is fixed to the edge of the explosion-proof cover. The end of a piston rod of each push air cylinder is rotationally connected with a push rod, the free end of each push rod is rotationally connected with the pressing rod, and therefore each piston rod stretches out and retracts to drive the corresponding push rod and the corresponding pressing rod to do reciprocating motion. Each push air cylinder drives the corresponding pressing rod to move through retraction and expansion, the pressing block and the cushion block in the corresponding locking assembly are separated and pressed, and the explosion-proof cover looseness and locking are achieved. The air cylinders areuniformly controlled through an air compressor, automatic remote control is achieved, and manpower and financial resources are saved.

Description

technical field [0001] The invention relates to the technical field of mine explosion-proof covers, in particular to an automatic locking device for anti-wind of vertical shaft explosion-proof covers. Background technique [0002] The explosion-proof cover is an important part to protect the mine main ventilator from damage and ensure ventilation safety. It is generally composed of an explosion-proof cover, an anti-wind device, and a heavy hammer device. When there is a fire in the underground and the anti-wind is required, the anti-wind device should be in a locked state, press and lock the explosion-proof cover, and cannot rotate by itself. Among them, the anti-wind device is a pressure plate type. When the anti-wind is used, bolts are used to fasten the pressure plate around the explosion-proof cover to fix the explosion-proof cover. The operation method is cumbersome, and it takes a long time to fasten the anti-wind device. In addition, it does not meet the requirements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B51/02E05B63/14E05B65/00E05B15/00E05B15/16E21F1/16
Inventor 郭瑜陈靖黄德君马衍文李丰范海关彭敏王朝阳范林兵吴国栋李俊杰张玉峰
Owner 河南大有能源股份有限公司跃进煤矿
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