Mining anti-extrusion air door

Abstract

The utility model discloses a mining anti-extrusion air door which comprises an air door body, and adjusting modules are detachably installed at the top and the bottom of the air door body. Rotating modules are arranged on the two sides of the air door body. According to the utility model, the two ends of the adjusting module are detachably connected with the air door main body through the bolts and the angle irons, so that the connecting firmness is effectively improved, meanwhile, the air door main body can be quickly disassembled and assembled, and when the air door main body meets longitudinal pressure and needs to be adjusted, one or more adjusting blocks in the adjusting module can be taken off and then fixed again; the rotating modules are symmetrically installed at proper positions on the air wall of the roadway through cooperation of anchor rods and anchoring agents, when walls on the two sides of the air door deform and cannot be closed, the positions of air door hinges on the two sides of the air door body can be adjusted through horizontal or vertical movement of the rotating modules, and the influence of wall deformation on the air door can be effectively reduced; and normal opening and closing of the air door during roadway deformation are ensured.

Description

Technical Field

[0001] This utility model relates to the field of mine ventilation door technology, specifically to a mine anti-extrusion ventilation door. Background Technology

[0002] Underground air doors are crucial facilities for maintaining the stable operation of mine ventilation systems. Their main functions include: guiding the directional flow of air in connecting roadways between intake and return airways to prevent short-circuiting; and effectively isolating intake and return air in mining areas or working face passages to ensure the reliability of independent ventilation systems. Under pressure conditions in mine roadways, roadways with air doors often bear significant mine pressure. Roadway surface bulging and roadway wall deformation can affect the opening and closing of air doors, and maintenance or replacement can impact work efficiency.

[0003] Currently, the industry generally adopts two solutions: one is the traditional method of rebuilding the air wall and installing the air door, but it has the disadvantages of long construction period and high labor intensity; the other is to use new composite material air doors, such as anti-squeezing air doors made of Q235 steel frame combined with stainless steel, aluminum alloy and other reinforcing materials, but the air door is inconvenient to open and close when there is longitudinal and transverse pressure in the roadway; and in terms of control method, although some air doors integrate sensors and controllers, support electric or pneumatic control, and are equipped with limit switches, emergency stop buttons and other safety devices, such air doors cannot be used in the event of power failure or air circuit failure, which poses a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a mine anti-extrusion air door in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] The damper body has adjustable modules detachably installed on its top and bottom, which are used to adjust the overall height of the damper body.

[0007] Rotation modules are provided on both sides of the damper body, and the adjustment modules are used to adjust the overall height and left and right position of the damper body.

[0008] As a further description of the above technical solution, the damper body includes symmetrically arranged main blocks, and the main blocks are made of polymer material.

[0009] As a further description of the above technical solution, the adjustment module includes multiple sets of parallel-arranged adjustment blocks, and the two ends of the adjustment blocks are detachably connected to the damper body by bolts and angle irons.

[0010] As a further description of the above technical solution, the adjustment block is provided in 4-6 groups, and the height of the adjustment module is 40-60cm.

[0011] As a further description of the above technical solution, damper hinges are provided on both sides of the damper body, and 2-4 sets of damper hinges are symmetrically arranged.

[0012] As a further description of the above technical solution, the damper hinge and the rotating module are flush with each other.

[0013] As a further description of the above technical solution, the rotating module is symmetrically installed on the wind wall of the roadway by anchor bolts.

[0014] As a further description of the above technical solution, an adjustment shaft is installed in the middle of the rotating module, and a pin is connected to the fixing hole at the bottom of the adjustment shaft.

[0015] As a further description of the above technical solution, adjustment holes are provided on both sides of the adjustment shaft, and 3-6 sets of adjustment holes are symmetrically arranged.

[0016] As a further description of the above technical solution, the horizontal movement range of the rotating module is 50-70cm, and the vertical movement range of the rotating module is 8-10cm.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the two ends of the adjustment module are detachably connected to the damper body by bolts and angle iron, which effectively improves the connection firmness and allows for quick disassembly and assembly. When the damper body needs to be adjusted due to longitudinal pressure, one or more adjustment blocks in the adjustment module can be removed and then re-fixed.

[0019] 2. In this utility model, the rotating module is symmetrically installed at appropriate positions on the ventilation wall of the roadway using anchor rods and anchoring agents. When the walls on both sides of the ventilation door are deformed and cannot be closed, the position of the ventilation door hinges on both sides of the ventilation door body can be adjusted by moving the rotating module horizontally or vertically. This can effectively reduce the impact of wall deformation on the ventilation door and ensure the normal opening and closing of the ventilation door when the roadway is deformed.

[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the mining anti-extrusion air door of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the mining anti-extrusion air door of this utility model. Figure 2 ;

[0023] Figure 3This is a schematic diagram of the structure of the mining anti-extrusion air door of this utility model. Figure 3 .

[0024] Figure label:

[0025] 1. Air damper body; 11. Main body block; 2. Adjustment module; 21. Adjustment block; 3. Rotation module; 31. Adjustment shaft; 32. Adjustment hole; 4. Air damper hinge; 5. Channel; 6. Air wall. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] like Figures 1-3 As shown, in one embodiment, a mine anti-squeezing air door includes: an air door body 1, the air door body 1 including symmetrically arranged main blocks 11, the main blocks 11 being made of polymer material, which has the characteristics of being lightweight, corrosion-resistant, and impact-resistant, and can adapt to the complex geological environment underground, reducing the difficulty of installation and transportation while effectively avoiding structural failure caused by metal corrosion, and greatly improving the service life and reliability of the air door.

[0028] Among them, damper hinges 4 are installed on both sides of the damper, with 2-4 sets of hinges symmetrically arranged to ensure that the damper body 1 can open and close smoothly, stably and reliably during daily operation.

[0029] Furthermore, detachable adjustment modules 2 are installed at both the top and bottom of the damper body 1 for initial adjustment of the overall height of the damper. Specifically, each module consists of 4-6 sets of parallel adjustment blocks 21, also made of polymer material. Each adjustment block 21 is detachably connected to the damper body 1 by bolts and angle iron, which not only facilitates installation but also ensures a firm connection, effectively resisting the impact of complex stress environments downhole. The total height of the adjustment module 2 is 40-60cm, and the number of adjustment blocks 21 can be increased or decreased according to actual needs.

[0030] For example, please refer to Figure 3 The rotating modules 3 are symmetrically arranged in 4 groups, and each group of rotating modules 3 is symmetrically arranged with 12 adjustment holes 32 with a diameter of 12mm. Each group of rotating modules 3 can move 50-70cm left and right and 10cm up and down.

[0031] Understandably, when the main body of the air door 1 is subjected to longitudinal pressure, causing a change in the height of the roadway 5, the staff only need to simply remove one or more adjusting blocks 21 from the adjusting module 2 and re-fix them to quickly adjust the height of the air door, ensuring that the air door can open and close normally, which significantly improves the efficiency of dealing with emergencies.

[0032] Please continue reading. Figures 1-3 In this embodiment, rotating modules 3 are installed on both sides of the damper body 1 to precisely adjust the horizontal and vertical positions of the damper. The rotating modules 3 are installed at appropriate positions on the ventilation wall 6 of the roadway 5 using anchor rods and anchoring agents. The damper hinges 4 are precisely connected to the rotating modules 3 and are flush with each other, ensuring the continuity of movement of the damper body 1 during the adjustment process.

[0033] Furthermore, the rotating module 3 has a rotatable adjusting shaft 31 in the middle, and the bottom of the adjusting shaft 31 has a dedicated fixing hole for inserting a pin for secure locking, effectively preventing the adjusting shaft 31 from rotating randomly during the operation of the damper. Specifically, the adjusting shaft 31 has 3-6 sets of symmetrical adjusting holes 32 on both sides, allowing the rotating module 3 to move precisely horizontally (50-70cm) and / or vertically (8-10cm) within a certain range.

[0034] It can be understood that when the walls on both sides of the air door body 1 are deformed due to mine pressure, causing the air door body 1 to be unable to close normally, the staff can adjust the horizontal or vertical position of the rotating module 3, thereby precisely adjusting the position of the air door hinges 4 on both sides of the air door body 1, effectively offsetting the adverse effects of wall deformation on the air door body 1, and ensuring that the air door can still be opened and closed normally even in the case of severe deformation of the roadway 5, maintaining the stable operation of the ventilation system.

[0035] Working principle:

[0036] (1) When the top of the roadway 5 is deformed by the pressure of the mine, causing pressure on the main body 1 of the air door and thus affecting the normal opening and closing of the air door, the workers can remove several adjustment blocks 21 in the adjustment module 2 at the top of the air door one by one. By reducing the number of adjustment blocks 21, the height of the top of the air door is reduced, so as to adapt to the new wall deformation and enable the air door to restore its normal opening and closing function. If removing one or more adjustment blocks 21 is not enough to meet the actual adjustment needs, the adjustment shaft 31 of the rotating module 3 can be further operated. By changing the height of the adjustment shaft 31, the height of the air door can be finely adjusted to ensure that the air door can be opened and closed freely and flexibly. When the ground at the bottom of the roadway 5 bulges due to the pressure of the mine, affecting the normal operation of the air door, the same operation procedure can be followed for adjustment. Compared with the traditional method of replacing the entire air door, this local adjustment operation mode saves the workers' working time significantly, improves the team's work efficiency, and greatly reduces the workers' labor intensity, effectively reducing the cost of underground operations.

[0037] (2) When the walls on both sides of the damper body 1 are squeezed and deformed, causing the damper to not close properly or to be unable to close, the original fixed anchor rods on the damper wall 6 remain stationary. The staff can readjust the damper body 1 to a suitable installation position by changing the position of the rotating module 3 left and right to ensure that the damper can open and close normally. In order to prevent the adjusting shaft 31 from rotating back and forth during the adjustment process and affecting the operation of the damper, the bottom fixing hole of the adjusting shaft 31 needs to be locked with a pin.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crush protection damper for use in a mine, characterised in that, include: The damper body (1) has an adjustable module (2) detachably installed on its top and bottom. The adjustable module (2) is used to adjust the overall height of the damper body (1). Rotating modules (3) are provided on both sides of the damper body (1); The adjustment module (2) includes multiple sets of parallel adjustment blocks (21), and the two ends of the adjustment blocks (21) are detachably connected to the damper body (1) by bolts and angle iron; The damper body (1) is provided with damper hinges (4) on both sides. The damper hinge (4) and the rotating module (3) are flush with each other; The rotating module (3) is symmetrically installed on the wind wall (6) of the roadway (5) by anchor bolts; An adjusting shaft (31) is installed in the middle of the rotating module (3), and a pin is connected to the bottom fixing hole of the adjusting shaft (31). The adjusting shaft (31) has adjusting holes (32) on both sides, and 3-6 sets of adjusting holes (32) are symmetrically arranged.

2. The crush protection damper for mining according to claim 1, characterized in that The damper body (1) includes symmetrically arranged main blocks (11), and the main blocks (11) are made of polymer materials.

3. The crush protection damper for mining applications according to claim 1, characterized in that The adjustment block (21) is provided in 4-6 groups, and the height of the adjustment module (2) is 40-60cm.

4. The mine-resistant air damper of claim 1, wherein, The damper hinges (4) are symmetrically arranged in 2-4 sets.

5. The mine-resistant air damper of claim 1, wherein, The horizontal movement range of the rotating module (3) is 50-70cm, and the vertical movement range of the rotating module (3) is 8-10cm.

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