Coal mine safety supporting device

Abstract

The utility model discloses a coal mine safety supporting device which comprises a top plate, first grooves are formed in the front side and the rear side of the two sides of the top plate, movable frames are movably connected into the first grooves, and a connecting column is fixedly connected between the two movable frames. When an operator needs to adjust the width of the device, for example, the operator starts a motor to rotate to drive a positive and negative tooth threaded rod to rotate, so that driving frames on the two sides are driven to be away from each other, movable frames on the two sides are driven to be away from each other through connecting columns, and the movable frames drive top extension protection frames on the two sides to be away from each other through fixing blocks; the contact area between the top protection plate and the top extending protection frame and the top of the inner wall of the coal mine roadway is increased, the supporting effect is improved, the two sides of the inner wall of the coal mine roadway can be supported and protected through the arrangement of the side protection plates and the side extending protection plates, the supporting effect of the device is further improved, and the device has the advantage of being good in supporting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine safety, in particular to a coal mine safety support device. Background Art

[0002] With the increase in demand for coal, people are mining deeper and deeper, which makes the geological environment worse. As the ground stress increases, the ground temperature continues to rise. Therefore, during the process of coal mining and tunneling, it is usually necessary to use support devices to support the top wall of the tunnel to avoid tunnel collapse.

[0003] The support plates of most existing temporary support devices for coal mine excavation are mostly fixed width. When supporting the top wall of the tunnel, they can only support the middle position of the top wall of the tunnel and cannot provide better support for the top wall of the tunnel, thereby increasing the possibility of safety hazards for coal miners during tunnel excavation and greatly reducing the practicality of temporary support devices for coal mine excavation. Therefore, it is necessary to design and modify the coal mine safety support device to effectively prevent the phenomenon of poor support effect. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present utility model is to provide a coal mine safety support device with the advantage of good support effect, which solves the problem that the support plates of most existing temporary support devices for coal mine excavation are mostly fixed widths. When supporting the top wall of the tunnel, they can only support the middle position of the top wall of the tunnel and cannot provide better support for the top wall of the tunnel, thereby increasing the possibility of safety hazards occurring to coal miners during tunnel excavation, and greatly reducing the practicality of the temporary support device for coal mine excavation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mine safety support device, comprising a roof, a first groove is provided on the front and rear sides of both sides of the roof, and a movable frame is movably connected inside the first groove, and a connecting column is fixedly connected between the two movable frames, the bottom of the roof is fixedly connected to a drive box, the interior of the drive box is movably connected to a positive and negative threaded rod, both sides of the surface of the positive and negative threaded rod are threadedly connected to the drive frame, the drive frame is fixedly connected to the connecting column, the drive frame is in contact with the inner wall of the drive box, the right side of the drive box is fixedly connected to a motor, and the output end of the motor is connected to the positive and negative threaded rod The cam is fixedly connected to the chassis, and the surface of the movable frame is movably connected to the support column, the bottom of the support column is fixedly connected to the bottom plate, the top of the top plate is fixedly connected to the top guard plate, second grooves are provided on both sides of the top guard plate, and the inside of the second groove is movably connected to the top extension protective frame, the top of the movable frame is fixedly connected to a fixed block, and the fixed block is fixedly connected to the top extension protective frame, the surface of the support column is fixedly connected to the side guard plate, the top of the side guard plate is provided with a third groove, and the inside of the third groove is movably connected to the side extension guard plate, the surface of the side extension guard plate is fixedly connected to the electric cylinder through a limit block, and the electric cylinder is fixedly connected to the bottom plate.

[0006] As a preferred embodiment of the present invention, a card slot is provided on the surface of the movable frame, the card slot is cylindrical, the number of the card slot is several, the internal thread of the support column is connected with a bolt, the bolt is movably connected to the card slot, and the surface of the bolt is sprayed with anti-rust paint.

[0007] As a preferred embodiment of the present invention, the front and rear sides of the bottom of the base plate are fixedly connected to universal wheels, the front and back sides of the base plate are fixedly connected to positioning blocks, the internal threads of the positioning blocks are connected to a first threaded rod, the bottom of the first threaded rod is set with a guide angle, the top of the first threaded rod is fixedly connected to a turning handle, and the surface of the turning handle is provided with anti-slip grooves, and the number of anti-slip grooves is several.

[0008] As a preferred embodiment of the present invention, a first reinforcement block is fixedly connected to both sides of the front and back of the top plate, and the first reinforcement block is fixedly connected to the top guard plate. A second reinforcement block is fixedly connected to both sides of the front and back of the drive box, and the second reinforcement block is fixedly connected to the top plate. The first reinforcement block and the second reinforcement block are both triangular.

[0009] As a preferred embodiment of the present invention, a bearing is fixedly connected to the interior of the drive box, and the outer ring of the bearing is fixedly connected to the drive box, and the inner ring of the bearing is fixedly connected to the positive and negative threaded rod, and lubricating oil is provided inside the bearing, and a sealing shaft cover is provided inside the bearing, and the sealing shaft cover is made of plastic material.

[0010] As a preferred embodiment of the present invention, lighting lamps are fixedly connected to the front and rear sides of the bottom of the top plate, and there are several lighting lamps, which are evenly distributed on the bottom of the top plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model adopts that when the operator needs to adjust the width of the device, for example, the operator starts the motor to rotate and drives the forward and reverse threaded rods to rotate, thereby driving the driving frames on both sides to move away from each other, and then driving the movable frames on both sides to move away from each other through the connecting columns, and the movable frames drive the top extension protection frames on both sides to move away from each other through the fixed blocks, thereby increasing the contact area between the top guard plate and the top extension protection frame and the top of the inner wall of the coal mine tunnel, thereby improving the support effect. Through the arrangement of the side guard plates and the side extension guard plates, both sides of the inner wall of the coal mine tunnel can be supported and protected, thereby further improving the support effect of the device. The device has the advantage of good support effect.

[0013] 2. The utility model provides a slot and a bolt, so that the operator can adjust the height of the movable frame, and then adjust the height of the top plate and the top guard plate. Then the operator can use a tool to tighten the bolt so that the bolt is inserted into the slot, thereby locking the position of the movable frame and the height of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a bottom view schematic diagram of the positive and negative threaded rod structure of the present invention;

[0016] Figure 3 For this utility model Figure 1 A schematic diagram of the structure at center A;

[0017] Figure 4 For this utility model Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0018] In the figure: 1. Top plate; 2. Movable frame; 3. Connecting column; 4. Drive box; 5. Threaded rod with positive and negative threads; 6. Drive frame; 7. Motor; 8. Top guard plate; 9. Top extension guard frame; 10. Support column; 11. Bottom plate; 12. Side guard plate; 13. Side extension guard plate; 14. Electric cylinder; 15. Bolt; 16. Fixing block; 17. First reinforcement block; 18. Second reinforcement block; 19. Lighting lamp; 20. Positioning block; 21. First threaded rod; 22. Universal wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, a coal mine safety support device includes a roof 1, a first groove is provided on the front and rear sides of both sides of the roof 1, and a movable frame 2 is movably connected inside the first groove, and a connecting column 3 is fixedly connected between the two movable frames 2, the bottom of the roof 1 is fixedly connected to a drive box 4, the interior of the drive box 4 is movably connected to a positive and negative threaded rod 5, both sides of the surface of the positive and negative threaded rod 5 are threadedly connected to a drive frame 6, the drive frame 6 is fixedly connected to the connecting column 3, the drive frame 6 is fitted with the inner wall of the drive box 4, the right side of the drive box 4 is fixedly connected to a motor 7, the output end of the motor 7 is fixedly connected to the positive and negative threaded rod 5, and the surface of the movable frame 2 is movably connected. It is connected to a support column 10, the bottom of the support column 10 is fixedly connected to the bottom plate 11, the top of the top plate 1 is fixedly connected to the top guard plate 8, second grooves are provided on both sides of the top guard plate 8, and the inside of the second groove is movably connected to the top extension protective frame 9, the top of the movable frame 2 is fixedly connected to a fixed block 16, the fixed block 16 is fixedly connected to the top extension protective frame 9, the surface of the support column 10 is fixedly connected to the side guard plate 12, the top of the side guard plate 12 is provided with a third groove, and the inside of the third groove is movably connected to the side extension guard plate 13, the surface of the side extension guard plate 13 is fixedly connected to the electric cylinder 14 through a limit block, and the electric cylinder 14 is fixedly connected to the bottom plate 11.

[0021] refer to Figure 1 and Figure 3 The surface of the movable frame 2 is provided with a card slot, the card slot is cylindrical, and the number of the card slot is several. The internal thread of the support column 10 is connected with a bolt 15, the bolt 15 is movably connected to the card slot, and the surface of the bolt 15 is sprayed with anti-rust paint.

[0022] As a technical optimization solution of the present invention, through the setting of the slot and the bolt 15, the operator can adjust the height of the movable frame 2, and then adjust the height of the top plate 1 and the top guard plate 8. Then the operator can use a tool to tighten the bolt 15 so that the bolt 15 is inserted into the inside of the slot, thereby locking the position of the movable frame 2 and then locking the height of the device.

[0023] refer to Figure 1 and Figure 4The front and rear sides of the bottom of the base plate 11 are fixedly connected with universal wheels 22, and the front and back sides of the base plate 11 are fixedly connected with positioning blocks 20. The internal threads of the positioning blocks 20 are connected with the first threaded rod 21. The bottom of the first threaded rod 21 is set with a guide angle, and the top of the first threaded rod 21 is fixedly connected with a turning handle, and the surface of the turning handle is provided with anti-slip grooves, and the number of anti-slip grooves is several.

[0024] As a technical optimization solution of the present invention, through the setting of the universal wheel 22, the operator can easily push the device to move, thereby improving the portability of the device. Through the setting of the positioning block 20 and the first threaded rod 21, when the device is moved to a suitable position, the operator rotates the handle to drive the first threaded rod 21 to rotate, and then drives the first threaded rod 21 to move downward, so that the bottom of the first threaded rod 21 is inserted into the ground, thereby locking the position of the device.

[0025] refer to Figure 1 and Figure 3 , both sides of the front and back of the top plate 1 are fixedly connected with a first reinforcement block 17, the first reinforcement block 17 is fixedly connected to the top guard plate 8, and both sides of the front and back of the drive box 4 are fixedly connected with a second reinforcement block 18, the second reinforcement block 18 is fixedly connected to the top plate 1, and the first reinforcement block 17 and the second reinforcement block 18 are both triangular.

[0026] As a technical optimization solution of the present invention, by providing the first reinforcement block 17 and the second reinforcement block 18 , the stability of the top guard plate 8 and the drive box 4 can be increased respectively, thereby improving the stability of the device structure.

[0027] refer to Figures 1 to 3 The interior of the drive box 4 is fixedly connected to a bearing, and the outer ring of the bearing is fixedly connected to the drive box 4, and the inner ring of the bearing is fixedly connected to the positive and negative threaded rod 5, and the interior of the bearing is provided with lubricating oil, and the interior of the bearing is provided with a sealing shaft cover, and the sealing shaft cover is made of plastic material.

[0028] As a technical optimization solution of the present invention, the friction between the drive box 4 and the positive and negative threaded rod 5 can be reduced by setting the bearing, thereby facilitating the rotation of the positive and negative threaded rod 5.

[0029] refer to Figure 1 and Figure 3 The front and rear sides of the bottom of the top plate 1 are fixedly connected with lighting lamps 19. There are several lighting lamps 19, and the lighting lamps 19 are evenly distributed on the bottom of the top plate 1.

[0030] As a technical optimization solution of the present invention, by providing the lighting lamp 19, the interior of the coal mine tunnel can be illuminated, thereby facilitating construction for operators.

[0031] The working principle and usage process of the present invention: During use, when the operator needs to adjust the width of the device, for example, the operator starts the motor 7 to rotate and drive the forward and reverse threaded rods 5 to rotate, thereby driving the driving frames 6 on both sides away from each other, and then driving the movable frames 2 on both sides away from each other through the connecting column 3. The movable frames 2 drive the top extension protection frames 9 on both sides away from each other through the fixed block 16, thereby increasing the contact area between the top guard plate 8 and the top extension protection frame 9 and the top of the inner wall of the coal mine tunnel, thereby improving the support effect. The operator can start the electric cylinder 14 to extend or contract, thereby driving the side extension guard plate 13 to move up or down. Through the setting of the side guard plate 12 and the side extension guard plate 13, both sides of the inner wall of the coal mine tunnel can be supported and protected, thereby further improving the support effect of the device.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine safety support device, comprising a roof (1), characterized in that: The front and rear sides of both sides of the top plate (1) are both provided with a first groove, and the interior of the first groove is movably connected to a movable frame (2), and a connecting column (3) is fixedly connected between the two movable frames (2). The bottom of the top plate (1) is fixedly connected to a drive box (4), and the interior of the drive box (4) is movably connected to a positive and negative threaded rod (5). Both sides of the surface of the positive and negative threaded rod (5) are threadedly connected to a drive frame (6), and the drive frame (6) is fixedly connected to the connecting column (3). The drive frame (6) is fitted with the inner wall of the drive box (4). The right side of the drive box (4) is fixedly connected to a motor (7), and the output end of the motor (7) is fixedly connected to the positive and negative threaded rod (5). The surface of the movable frame (2) is movably connected to a support column (10). The bottom of the support column (10) is fixedly connected to the bottom plate (11), the top of the top plate (1) is fixedly connected to the top guard plate (8), both sides of the top guard plate (8) are provided with a second groove, and the interior of the second groove is movably connected to the top extension protection frame (9), the top of the movable frame (2) is fixedly connected to a fixed block (16), and the fixed block (16) is fixedly connected to the top extension protection frame (9), the surface of the support column (10) is fixedly connected to the side guard plate (12), the top of the side guard plate (12) is provided with a third groove, and the interior of the third groove is movably connected to the side extension guard plate (13), the surface of the side extension guard plate (13) is fixedly connected to the electric cylinder (14) through a limit block, and the electric cylinder (14) is fixedly connected to the bottom plate (11).

2. A coal mine safety support device according to claim 1, characterized in that: The surface of the movable frame (2) is provided with a card slot, the card slot is cylindrical, and the number of the card slots is several. The internal thread of the support column (10) is connected with a bolt (15), and the bolt (15) is movably connected to the card slot.

3. A coal mine safety support device according to claim 1, characterized in that: The front and rear sides of the bottom of the base plate (11) are fixedly connected to universal wheels (22), the front and back sides of the base plate (11) are fixedly connected to positioning blocks (20), the internal threads of the positioning blocks (20) are connected to first threaded rods (21), and the bottom of the first threaded rods (21) is provided with a guide angle.

4. A coal mine safety support device according to claim 1, characterized in that: Both sides of the front and back of the top plate (1) are fixedly connected with first reinforcing blocks (17), and the first reinforcing blocks (17) are fixedly connected to the top guard plate (8). Both sides of the front and back of the drive box (4) are fixedly connected with second reinforcing blocks (18), and the second reinforcing blocks (18) are fixedly connected to the top plate (1). The first reinforcing blocks (17) and the second reinforcing blocks (18) are both triangular.

5. A coal mine safety support device according to claim 1, characterized in that: A bearing is fixedly connected to the interior of the drive box (4), the outer ring of the bearing is fixedly connected to the drive box (4), and the inner ring of the bearing is fixedly connected to the positive and negative threaded rod (5).

6. A coal mine safety support device according to claim 1, characterized in that: The front and rear sides of the bottom of the top plate (1) are both fixedly connected with lighting lamps (19), and the number of the lighting lamps (19) is several, and the lighting lamps (19) are evenly distributed on the bottom of the top plate (1).

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