Pressure releasing automatic reset air shaft anti-explosion cover
A technology of automatic reset and explosion-proof cover, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc. It can solve problems such as damage to explosion-proof cover, affecting underground rescue work, etc., to achieve uniform impact force, equalize pressure, and reduce time. and human effect
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[0014] Such as figure 1 As shown in -5, the present invention mainly includes a well cover 2 arranged on the wellhead 1, three guide sleeves 3 are connected to the outer periphery of the well cover 2 along the circumferential direction, and two guide pillars 4 are respectively inserted in each guide sleeve 3, each The lower ends of the guide pillars 4 are respectively fixed at the position of the wellhead 1, and the top ends of each guide pillar 4 are respectively provided with elastic limit blocks 5. The middle part above the well cover 2 is connected with a column 12 and four pressure relief devices 6 , each pressure relief device 6 is arranged on the outside of the column 12 along the circumferential direction, and each pressure relief device 6 is respectively connected with a locking mechanism 9 . Each pressure relief device 6 includes a pressure relief cylinder 13 respectively, the top of each pressure relief cylinder 13 is hinged cover door 14 respectively, and the inner...
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