Automatic locking air door for underground mine

By designing an automatic locking damper in an underground mine using articulation, folding fixation and automatic locking mechanism, the existing downhole damper has solved the problem of inaccurate air leakage, deformation and air volume adjustment of the existing downhole damper, and achieved high sealing, earthquake resistance and automatic locking functions, improving the reliability of mining safety production.

CN222910062UActive Publication Date: 2025-05-27ERGUNA CHENGCHENG MINING CO LTD
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Patent Information

Application Number
CN202422055629.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-05-27
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

Existing downhole dampers are prone to air leakage, deformation and imprecise air volume adjustment after long-term use, which affects mining production safety.

Method used

An automatic locking damper in an underground mine is designed, using concrete cast fixing rods inside the wall. The door frame and the door panel are fixedly connected through hinges and folding, and are equipped with a limiting mechanism and an automatic locking mechanism to achieve air volume adjustment and automatic locking.

Benefits of technology

It improves the sealing and shock resistance of the damper, avoids deformation of the damper, realizes accurate adjustment of air volume and automatic locking, and reduces air volume loss and safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222910062U_ABST
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Abstract

The utility model discloses an automatic locking air door for an underground mine. The automatic locking air door comprises a wall body and an air door, an air door is installed in the wall body and comprises a door frame, a fixing plate, a fixing rod, a door plate, an adjusting plate, a limiting mechanism, a door blocking piece and an automatic locking mechanism. A plurality of fixing plates are fixed to the vertical outer surfaces of the two symmetrical sides of the door frame respectively, a horizontally-arranged fixing rod is fixed to each fixing plate, the fixing rods are poured in a wall through concrete, the door frame is provided with a door plate, an adjusting plate and an automatic locking mechanism, and the door plate is provided with a limiting mechanism and a plurality of door blocking pieces. The door blocking piece is fixed to the door frame through an automatic locking mechanism. The air door has the advantages that the sealing performance and shock resistance of the air door are improved, the air door is prevented from deforming, and the included angle between the door plate and the door frame and the air volume are adjusted by inserting the limiting inserting rods into the through holes in different positions of the adjusting plate; by sliding the air window, the safety of the air door is improved, door closing is convenient and fast, automatic locking can be achieved, and manual locking is not needed.
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Claims

1. An automatic locking damper for an underground mine, characterized in that: It includes a wall (1) and a damper; a damper is installed inside the wall (1), and the damper includes: a door frame (2), a fixing plate (3), a fixing rod (4), a door panel (5), an adjusting plate (6), a limiting mechanism (7), a door blocking piece (8), and an automatic locking mechanism (9); on the vertical outer surfaces of the two symmetric sides of the door frame (2), a plurality of fixing plates (3) are respectively fixed, and a horizontally arranged fixing rod (4) is fixed on each fixing plate (3). The fixing rod (4) is cast in the wall (1) with concrete. One vertical side of the door frame (2) is hinged with a door panel (5). The top of the door frame (2) is horizontally fixed with an adjusting plate (6). Above one side of the door panel (5) away from the hinged direction, a limiting mechanism (7) is installed. A plurality of door blocking pieces (8) are fixed on one side of the door panel (5) away from the hinged direction. On the surface of the door frame (2) corresponding to the door blocking piece (8), an automatic locking mechanism (9) is installed. The door blocking piece (8) is fixed on the door frame (2) through the automatic locking mechanism (9).

2. The automatic locking damper for underground mines according to claim 1, characterized in that: The door frame (2) and the door panel (5) are fixedly connected by hinges.

3. The automatic locking damper for underground mines according to claim 1, characterized in that: The adjusting plate (6) is in a "sector" structure, and a plurality of through holes (6.1) are evenly arranged on the upper surface along the edge of the sector; the limiting mechanism (7) includes: a limiting insertion rod (7.1), a limiting tube (7.2), and a limiting groove plate (7.3); the limiting insertion rod (7.1) is in a "卜" character structure, and its upper end is movably inserted into any one of the through holes (6.1). The vertical part of the limiting insertion rod (7.1) slides through the limiting tube (7.2). The limiting tube (7.2) is fixed on the door panel (5). The limiting groove plate (7.3) is in a "凵" character structure and is fixed on the door panel (5) above one side beside the limiting tube (7.2). The horizontal end of the limiting insertion rod (7.1) is movably clamped on the limiting groove plate (7.3).

4. An automatic locking damper for underground mines according to claim 1 or 3, characterized in that: A sliding air window (10) is installed on the door panel (5), and a sealing strip is fixed at the edge of the door panel (5).

5. The automatic locking damper for underground mines according to claim 1, characterized in that: The automatic locking mechanism (9) includes a fixed seat (9.1) and a locking rod (9.2); the fixed seat (9.1) is fixed on the door frame (2). The locking rod (9.2) is in a "V" character structure, and one end of it is horizontally fixed with a latching rod (9.21). The other end of the locking rod (9.2) is horizontally fixed with a pin shaft (9.22). The latching rod (9.21) and the pin shaft (9.22) are on the same side of the locking rod (9.2). The latching rod (9.21) is movably lapped on the upper surface of the fixed seat (9.1). The pin shaft (9.22) is rotatably arranged in the upper middle part of the fixed seat (9.1). The latching rod (9.21) is located between the door frame (2) and the pin shaft (9.22).

6. The automatic locking damper for underground mines according to claim 5, characterized in that: When the latching rod (9.21) laps on the upper surface of the fixed seat (9.1), the part of the locking rod (9.2) connected to the latching rod (9.21) is just vertical, and the door blocking piece (8) is fixed on the door frame (2).