Automatic safety door for mine

Abstract

The utility model belongs to the technical field of safety door, concretely relates to mine automatic safety door, including mounting panel, the side of mounting panel passes through bearing seat and movable door one side both ends butt joint, the upper end of movable door passes through bearing seat and motor's output butt joint, one side of motor and mounting panel top butt joint, The side of mounting panel near top is provided with control box, the bottom of control box is overlapped on the surface of support plate, the one side of positioning strip is screwed through two bolts, and the one end of bolt is screwed with the inside thread of corresponding butt joint seat, the utility model discloses, installs control box and inserts the side of it into the recess of two triangular plates, then the bottom of control box is overlapped on the surface of support plate. Then insert the positioning strip into the recess of the other side of two triangular plates, finally, the two bolts are screwed through the butt joint of positioning strip and butt joint seat. In this way, the control box can be installed very conveniently through the above-mentioned mode.

Description

Technical Field

[0001] This utility model belongs to the field of safety door technology, specifically relating to automatic safety doors for mining. Background Technology

[0002] Automatic safety doors for mines are automated safety protection devices specifically designed for the unique environment of underground mines. They are mainly installed in critical locations such as underground roadways, workshops, chamber entrances and exits, and upper and lower shaft openings. Based on a mechanical structure, and combined with sensors, control systems, and drive devices, they achieve automatic opening and closing of the door and status monitoring. They possess characteristics such as impact resistance, corrosion resistance, dust resistance, and explosion protection, and can adapt to the harsh environment of mines with high humidity, high dust, and the potential presence of flammable and explosive gases such as methane.

[0003] In the actual operation of automatic safety doors in mines, the control box, as the core operating unit, undertakes key functions such as receiving sensor signals, driving the door to open and close, and providing feedback on the operating status. Currently, the industry commonly uses welding to fix the two components together. This connection method does indeed meet the basic requirements of the special environment of mines.

[0004] However, this connection method has revealed significant shortcomings in the later maintenance of the equipment. When the control box needs to be disassembled and repaired due to the aging of internal components, or when a new model of control box needs to be replaced due to technical upgrades, the irreversibility of the welded joints will greatly increase the difficulty of disassembly: maintenance personnel need to use tools such as angle grinders and gas cutters to destructively cut the welded joints, which is not only time-consuming and laborious, but may also cause secondary damage to the main structure of the safety door during the operation. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic safety door for mines, aiming to solve the problem of this connection mode, but it has revealed obvious shortcomings in the later maintenance of the equipment. When the control box needs to be disassembled and repaired due to the aging of internal components, or when a new model of control box needs to be replaced due to technical upgrades, the irreversibility of the welded points will greatly increase the difficulty of disassembly: maintenance personnel need to use tools such as angle grinders and gas cutters to destructively cut the welded points, which is not only time-consuming and laborious, but may also cause secondary damage to the main structure of the safety door during the operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic safety door for mining, including a mounting plate, one side of which is connected to both ends of one side of a movable door via a bearing seat, the upper end of the movable door passing through the bearing seat and connected to the output end of a motor, and one side of the motor being connected to the top of the mounting plate;

[0007] A control box is located on the top side of the mounting plate. The bottom of the control box rests on the surface of the support plate. One side of the support plate is welded to the mounting plate. Two triangular plates are symmetrically arranged on one side of the control box and welded to the mounting plate. The recesses on one side of the two triangular plates are inserted into the inserts on one side of the control box. Two mating seats are symmetrically welded to the outer wall of one side of the inserts. A positioning strip is engaged in the recesses on the other side of the two triangular plates. Two bolts are threaded through one side of the positioning strip, and one end of the bolts is screwed into the internal threads of the corresponding mating seats.

[0008] In order to lock the control box to one side of the two triangular plates, as the automatic safety door for mining of this utility model, preferably, the bottom of the positioning strip is in contact with the surface of the support plate, and the two bolts are located between the two triangular plates.

[0009] In order to support the suspended part of one end of the movable door, as the automatic safety door for mining of this utility model, preferably, an upper rod is welded to the bottom of the end of the movable door away from the mounting plate, a mounting column is welded to the bottom of the upper rod, and a ball is movably fitted to the bottom of the mounting column;

[0010] The upper inner wall of the inner cavity of the mounting post is fixedly connected to the top of the spring, the bottom of the spring is fixedly connected to the upper surface of the mating sleeve, the bottom of the mating sleeve is fixedly connected to the top of the ball, and the mating sleeve is movably installed in the inner cavity of the mounting post.

[0011] A limiting post is fixedly installed at the center end of the upper inner wall of the inner cavity of the mounting post, and the bottom of the limiting post is opposite to the center end of the upper surface of the mating sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] To install the control box, insert one side of the insert strip into the recesses of the two triangular plates, then place the bottom of the control box onto the surface of the support plate. Next, insert the positioning strip into the recesses on the other side of the two triangular plates, and finally, thread the two bolts through the positioning strip and align them with the mating seats. This allows for convenient installation of the control box and also enables easy disassembly for later maintenance.

[0014] In addition, during use, the upper rod, mounting post and ball bearing at the bottom of the sliding door will support the suspended end of the sliding door. This can prevent the sliding door as a whole from being subjected to excessive force on the suspended end, thereby reducing the stress on the connection end between the sliding door and the mounting plate. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main view structure provided for an embodiment of this application.

[0017] Figure 2 This is a side view structural diagram provided for an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the control box installation structure provided in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting column provided in an embodiment of this application.

[0020] In the diagram: 1. Mounting plate; 2. Movable door; 21. Upper rod; 22. Mounting column; 23. Spring; 24. Connecting sleeve; 25. Ball bearing; 26. Limiting column; 3. Motor; 4. Control box; 5. Support plate; 6. Triangular plate; 7. Insert strip; 8. Connecting seat; 9. Positioning strip; 10. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides the following technical solution: an automatic safety door for mining, including a mounting plate 1, one side of the mounting plate 1 is connected to both ends of one side of the movable door 2 through a bearing seat, the upper end of the movable door 2 passes through the bearing seat and is connected to the output end of the motor 3, and one side of the motor 3 is connected to the top of the mounting plate 1.

[0023] In operation, the PLC program inside control box 4 is connected to the programmer on the mine cage. When the cage travels to the predetermined position, control box 4 will control motor 3 to operate. When motor 3 is operating, it will control the opening and closing of the movable door 2, thereby improving the safety when the cage is being moved out.

[0024] A control box 4 is installed on the side of the mounting plate 1 near the top. The bottom of the control box 4 overlaps the surface of the support plate 5. One side of the support plate 5 is welded to the mounting plate 1. Two triangular plates 6 are symmetrically arranged on one side of the control box 4 and welded to the mounting plate 1. The recesses on one side of the two triangular plates 6 are inserted into the insert strips 7 on one side of the control box 4. Two mating seats 8 are symmetrically welded on the outer wall of one side of the insert strips 7. A positioning strip 9 is snapped into the recesses on the other side of the two triangular plates 6. Two bolts 10 are threaded through one side of the positioning strip 9, and one end of the bolts 10 is screwed into the internal thread of the corresponding mating seat 8.

[0025] Preferably, the bottom of the positioning strip 9 is in contact with the surface of the support plate 5, and the two bolts 10 are located between the two triangular plates 6.

[0026] In practical use, insert the insert 7 on one side of the control box 4 into the recesses on one side of the two triangular plates 6, and place the bottom of the control box 4 on the surface of the support plate 5. Next, insert the positioning strip 9 into the recesses on the other side of the two triangular plates 6, and then screw the two bolts 10 through the positioning strip 9 and onto the corresponding mating seats 8. Tighten the bolts 10, and the control box 4 will be firmly installed on one side of the mounting plate 1. This structure improves the ease of installation of the control box 4 during use.

[0027] Preferably, an upper rod 21 is welded to the bottom of the end of the movable door 2 away from the mounting plate 1, a mounting post 22 is welded to the bottom of the upper rod 21, and a ball 25 is movably fitted to the bottom of the mounting post 22.

[0028] The upper inner wall of the inner cavity of the mounting post 22 is fixedly connected to the top of the spring 23, the bottom of the spring 23 is fixedly connected to the upper surface of the mating sleeve 24, the bottom of the mating sleeve 24 is fixedly connected to the top of the ball 25, and the mating sleeve 24 is movably installed in the inner cavity of the mounting post 22.

[0029] A limiting post 26 is fixedly installed at the center end of the upper inner wall of the inner cavity of the mounting post 22, and the bottom of the limiting post 26 is opposite to the center end of the upper surface of the mating sleeve 24.

[0030] In practical use, the suspended end of the sliding door 2 generates downward pressure, which is transmitted to the upper rod 21. The upper rod 21 then transmits the downward pressure to the mounting column 22, which in turn applies pressure to the ground through the ball bearing 25. Thus, the suspended end of the sliding door 2 receives a reverse supporting force, thereby reducing the tensile strength at the connection point on the other end of the sliding door 2.

[0031] When the movable door 2 moves, it will drive the ball 25 to move. When the ball 25 encounters a small protrusion on the ground, it will move into the mounting post 22. When the ball 25 retracts, it will compress the spring 23 through the connecting sleeve 24, so that the ball 25 can pass smoothly through the small protrusion on the ground.

[0032] When the ball 25 retracts to its maximum stroke, the top of the mating sleeve 24 will be blocked by the limiting post 26 to ensure that the ball 25 retracts within its safe stroke.

[0033] The working principle is as follows: To install the control box 4, insert the insert 7 on one side into the recesses of the two triangular plates 6, then place the bottom of the control box 4 onto the surface of the support plate 5. Next, insert the positioning strip 9 into the recesses on the other side of the two triangular plates 6, and finally, pass the two bolts 10 through the positioning strip 9 and align them with the mating seat 8. This allows the control box 4 to be installed very conveniently using the above method.

[0034] In addition, during use, the upper rod 21, mounting post 22 and ball 25 at the bottom of the movable door 2 will support the suspended end of the bottom of the movable door 2. This can prevent the movable door 2 from being subjected to excessive force on the suspended end, thereby reducing the stress on the connection end between the movable door 2 and the mounting plate 1.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic safety door for mining, including a mounting plate (1), characterized in that, One side of the mounting plate (1) is connected to both ends of one side of the movable door (2) through the bearing seat. The upper end of the movable door (2) passes through the bearing seat and is connected to the output end of the motor (3). One side of the motor (3) is connected to the top of the mounting plate (1). A control box (4) is provided on the side of the mounting plate (1) near the top. The bottom of the control box (4) overlaps the surface of the support plate (5). One side of the support plate (5) is welded to the mounting plate (1). Two triangular plates (6) are symmetrically arranged on one side of the control box (4) and welded to the mounting plate (1). The recesses on one side of the two triangular plates (6) are inserted into the inserts (7) on one side of the control box (4). Two docking seats (8) are symmetrically welded on the outer wall of one side of the inserts (7). A positioning strip (9) is snapped into the recesses on the other side of the two triangular plates (6). Two bolts (10) are threaded through one side of the positioning strip (9), and one end of the bolts (10) is screwed into the internal thread of the corresponding docking seat (8).

2. The automatic safety door for mining as described in claim 1, characterized in that: The bottom of the positioning strip (9) is in active contact with the surface of the support plate (5), and the two bolts (10) are located between the two triangular plates (6).

3. The automatic safety door for mining as described in claim 1, characterized in that: The bottom of the movable door (2) away from the mounting plate (1) is welded with an upper rod (21), and the bottom of the upper rod (21) is welded with a mounting post (22), and the bottom of the mounting post (22) is movably fitted with a ball (25).

4. The automatic safety door for mining as described in claim 3, characterized in that: The upper inner wall of the inner cavity of the mounting post (22) is fixedly connected to the top of the spring (23), the bottom of the spring (23) is fixedly connected to the upper surface of the mating sleeve (24), the bottom of the mating sleeve (24) is fixedly connected to the top of the ball (25), and the mating sleeve (24) is movably installed in the inner cavity of the mounting post (22).

5. The automatic safety door for mining as described in claim 3, characterized in that: A limiting post (26) is fixedly installed at the center end of the upper inner wall of the inner cavity of the mounting post (22), and the bottom of the limiting post (26) is opposite to the center end of the upper surface of the mating sleeve (24).

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