Coal mine safety protection device

Abstract

The utility model discloses a coal mine safety protection device, and particularly relates to the technical field of coal mining protection, the coal mine safety protection device comprises a supporting plate, an arc-shaped protection plate is fixedly arranged at the top end of the supporting plate, a plurality of adjusting plates are arranged at the bottom end of the supporting plate, a fixing plate is arranged at the bottom end of each adjusting plate, and a bottom plate is fixedly arranged at the bottom end of each fixing plate; the device comprises a fixed plate, a cavity is formed in the fixed plate, two movable plates are arranged in the cavity, three limiting supporting blocks are fixedly arranged on the outer sides of the movable plates, and a plurality of limiting supporting grooves are formed in the two sides of the fixed plate. The positions of the limiting supporting blocks are adjusted by rotating the rotating handle, the position of the adjusting plate in the adjusting groove can be adjusted, then the height of the adjusting plate and the height of the fixing plate can be adjusted, the supporting height of the safe supporting and protecting device can be adjusted according to the actual situation, and the applicability is high; and the supporting plate and the adjusting plate are connected and fixed together through the connecting limiting assembly, so that the installation process of the protection structure is simple and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mining protection technical field, concretely relates to a coal mine safety device. BACKGROUND

[0002] Coal mine is the area that human extracts coal resources in the coal-rich mining area, and is generally divided into underground coal mine and open coal mine. When the coal seam is far from the ground surface, generally selects to excavate the roadway to underground to extract coal, and this is the underground coal mine. In order to prevent the collapse of coal mine roadway in the process of mining, the support protection device is generally arranged in the roadway in the underground coal mine.

[0003] At present, the support height of the coal mine safety device is mostly fixed in actual use, so that the support height cannot be adjusted according to the actual situation, the applicability is relatively low, and the installation process of the support protection structure is not convenient enough. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a coal mine safety device to solve the above-mentioned shortcomings in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a coal mine safety device, comprising:

[0006] The support plate is provided with an arc-shaped protection plate at the top end, a plurality of adjusting plates are arranged at the bottom end of the support plate, a connecting and limiting assembly is arranged between the adjusting plate and the support plate, a fixed plate is arranged at the bottom end of the adjusting plate, an adjusting groove is formed at the top end of the fixed plate, the bottom end of the adjusting plate extends into the adjusting groove, and a bottom plate is fixedly arranged at the bottom end of the fixed plate.

[0007] A cavity is formed in the bottom end of the adjusting plate, two movable plates are arranged in the cavity, three limiting support blocks are fixedly arranged on the outer side of the movable plate, a plurality of limiting support grooves are formed on both sides of the fixed plate, and one end of the three limiting support blocks penetrates through the adjusting plate and extends into the three limiting support grooves.

[0008] Preferably, a bidirectional threaded rod is rotatably connected in the cavity, the two ends of the bidirectional threaded rod respectively penetrate through the two movable plates, the bidirectional threaded rod and the two movable plates are connected through threads and the thread directions are opposite, a rotating rod is arranged on the inner side of the adjusting plate, one end of the rotating rod penetrates through the inner side of the adjusting plate and extends into the cavity, the rotating rod is rotatably connected between one end and the adjusting plate, a first bevel gear is fixedly arranged at one end of the rotating rod, a second bevel gear is fixedly arranged at the outer end of the bidirectional threaded rod, the first bevel gear and the second bevel gear are meshed with each other, the other end of the rotating rod extends to the inner side of the fixed plate and is fixedly provided with a handle, and the movable plate and the three.

[0009] Preferably, a guide rod is fixedly arranged inside the cavity, the guide rod is arranged at the top of the bidirectional threaded rod, and two ends of the guide rod respectively penetrate the positions of the two movable plate limiting support blocks.

[0010] Preferably, a movable groove is formed in the inner side of the fixed plate, and the other end of the rotating rod penetrates the inside of the movable groove, so that the rotating rod can move up and down.

[0011] Preferably, a plurality of reinforcing plates are fixedly arranged between the top end of the support plate and the bottom end of the arc-shaped protective plate, so as to reinforce and protect the support plate and the arc-shaped protective plate.

[0012] Preferably, the connecting limiting assembly comprises a connecting block fixedly arranged at the top end of the adjusting plate, a plurality of connecting grooves are formed in the bottom end of the support plate, the top end of the connecting block penetrates the inside of the connecting grooves and extends between the support plate and the arc-shaped protective plate, a plurality of fixed blocks are fixedly arranged at the top end of the support plate, the fixed blocks are arranged at the inner side of the top end of the connecting block, L-shaped limiting plates are arranged at the inner sides of the fixed blocks, limiting grooves are formed in the connecting block, the horizontal part of the L-shaped limiting plate penetrates the fixed block and extends into the inside of the limiting groove, and springs are fixedly arranged between the vertical part of the L-shaped limiting plate and the inner side of the fixed block, so as to limit, connect and fix the support plate and the adjusting plate.

[0013] In the above technical solution, the technical effects and advantages of the present application are provided.

[0014] The position of the plurality of limiting support blocks can be adjusted by rotating the handle, the position of the adjusting plate in the adjusting groove can be adjusted, the height of the adjusting plate and the fixed plate can be adjusted, the support height of the safety support and protection device can be adjusted according to actual conditions, the applicability is high, and the support plate and the adjusting plate are connected and fixed together through the connecting limiting assembly, so that the installation process of the protection structure is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0016] Figure 1 It is a whole structure schematic diagram of the present application;

[0017] Figure 2 It is a whole structure schematic diagram of the present application;

[0018] Figure 3 It is a whole structure schematic diagram of the present application;

[0019] Figure 4 It is the three-dimensional structure schematic view of the connecting limiting component of the utility model;

[0020] Figure 5 It is the three-dimensional structure schematic view of the adjusting plate and the fixed plate of the utility model;

[0021] Figure 6 It is the three-dimensional sectional structure schematic view of the adjusting plate and the fixed plate of the utility model;

[0022] Figure 7 It is the three-dimensional sectional structure schematic view of the adjusting plate of the utility model.

[0023] Mark explanation:

[0024] 1, support plate, 2, arc-shaped protective plate, 3, adjusting plate, 4, fixed plate, 5, adjusting groove, 6, bottom plate, 7, cavity, 8, movable plate, 9, limiting support block, 10, limiting support groove, 11, two-way threaded rod, 12, rotating rod, 13, first bevel gear, 14, second bevel gear, 15, handle, 16, guide rod, 17, movable groove, 18, reinforcing plate, 19, connecting block, 20, connecting groove, 21, fixed block, 22, L-shaped limiting plate, 23, limiting groove, 24, spring. Specific implementation

[0025] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of coal mine safety protection device as Figures 1 to 7 As shown in formula, comprising:

[0027] Support plate 1, arc-shaped protective plate 2 is fixedly arranged at the top end of support plate 1, a plurality of reinforcing plates 18 are fixedly arranged between the top end of support plate 1 and the bottom end of arc-shaped protective plate 2, a plurality of adjusting plates 3 are arranged at the bottom end of support plate 1, connecting limiting component is arranged between adjusting plate 3 and support plate 1, fixed plate 4 is arranged at the bottom end of adjusting plate 3, adjusting groove 5 is arranged at the top end of fixed plate 4, adjusting plate 3 extends into the inside of adjusting groove 5, and bottom plate 6 is fixedly arranged at the bottom end of fixed plate 4.

[0028] Cavity 7, cavity 7 is arranged in the inside of the bottom end of adjusting plate 3, two movable plates 8 are arranged in the inside of cavity 7, three limiting support blocks 9 are fixedly arranged on the outside of movable plate 8, a plurality of limiting support grooves 10 are arranged on the both sides of fixed plate 4, and one end of three limiting support blocks 9 passes through adjusting plate 3 and extends into the inside of three limiting support grooves 10.

[0029] The two-way threaded rod 11 is rotatably connected inside the cavity 7, the two ends of the two-way threaded rod 11 pass through the two movable plates 8 respectively, the two-way threaded rod 11 is connected with the two movable plates 8 through threads and the thread directions are opposite, the inside of the adjusting plate 3 is provided with a rotating rod 12, one end of the rotating rod 12 passes through the inside of the adjusting plate 3 and extends into the inside of the cavity 7, one end of the rotating rod 12 is rotatably connected with the adjusting plate 3, one end of the rotating rod 12 is fixedly provided with a first bevel gear 13, the outer end of the two-way threaded rod 11 is fixedly provided with a second bevel gear 14, the first bevel gear 13 and the second bevel gear 14 are meshed with each other, the other end of the rotating rod 12 extends to the inside of the fixed plate 4 and is fixedly provided with a handle 15, the inside of the cavity 7 is fixedly provided with a guide rod 16, the guide rod 16 is arranged at the top of the two-way threaded rod 11, the two ends of the guide rod 16 pass through the two movable plates 8 respectively, the inside of the fixed plate 4 is provided with a movable slot 17, the other end of the rotating rod 12 passes through the inside of the movable slot 17.

[0030] The connecting limiting component comprises a connecting block 19 fixedly arranged at the top end of the adjusting plate 3, a plurality of connecting grooves 20 are arranged at the bottom end of the supporting plate 1, the top end of the connecting block 19 passes through the inside of the connecting groove 20 and extends between the supporting plate 1 and the arc-shaped protection plate 2, a plurality of fixed blocks 21 are fixedly arranged at the top end of the supporting plate 1, the fixed blocks 21 are arranged at the inside of the top end of the connecting block 19, an L-shaped limiting plate 22 is arranged at the inside of the fixed block 21, a limiting groove 23 is arranged on the connecting block 19, the horizontal part of the L-shaped limiting plate 22 passes through the fixed block 21 and extends into the inside of the limiting groove 23, and the vertical part of the L-shaped limiting plate 22 is fixedly arranged with a spring 24 between the inside of the fixed block 21.

[0031] The supporting plate 1 and the arc-shaped protection plate 2 are arranged on the top of the plurality of adjusting plates 3, the L-shaped limiting plate 22 is pulled inward, the L-shaped limiting plate 22 stretches the spring 24, at this time, the connecting block 19 passes through the inside of the connecting groove 20, then the L-shaped limiting plate 22 is released, the L-shaped limiting plate 22 returns to the original position under the elastic force of the spring 24, the horizontal part of the L-shaped limiting plate 22 is inserted into the inside of the limiting groove 23 on the connecting block 19, so that the supporting plate 1 and the adjusting plate 3 are limitedly connected and fixed together;

[0032] The support plate 1 and the arc-shaped protective plate 2 are supported by using hydraulic cylinders, the knob 15 is rotated, the knob 15 drives the rotating rod 12 to rotate, the rotating rod 12 drives the first bevel gear 13 to rotate, the first bevel gear 13 drives the second bevel gear 14 to rotate, the second bevel gear 14 drives the bidirectional threaded rod 11 to rotate, since the bidirectional threaded rod 11 is in threaded connection with the movable plate 8, therefore the two movable plates 8 move towards each other along with the rotation of the bidirectional threaded rod 11, the movable plate 8 drives the limiting support block 9 thereon to move to the inner side, the three limiting support blocks 9 will leave the inside of the three limiting support grooves 10, the position of the adjusting plate 3 in the adjusting groove 5 is adjusted, then the knob 15 is reversely rotated, the knob 15 drives the bidirectional threaded rod 11 to reversely rotate, at this time the movable plate 8 will drive the limiting support block 9 thereon to be inserted into the inside of a new limiting support groove 10, so that the height of the adjusting plate 3 and the fixed plate 4 can be adjusted, and then the height of the support protection can be adjusted.

[0033] The position of the plurality of limiting support blocks 9 can be adjusted by rotating the knob 15, the position of the adjusting plate 3 in the adjusting groove 5 can be adjusted, and then the height of the adjusting plate 3 and the fixed plate 4 can be adjusted, so that the safety support protection device can adjust the support height according to actual conditions, and the applicability is higher.

[0034] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, under the condition that deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A safety shield for coal mines, characterised in that, Include: Supporting plate (1), the arc-shaped protection plate (2) is fixedly arranged at the top end of the supporting plate (1), a plurality of adjusting plates (3) are arranged at the bottom end of the supporting plate (1), a connecting and limiting assembly is arranged between the adjusting plate (3) and the supporting plate (1), a fixed plate (4) is arranged at the bottom end of the adjusting plate (3), an adjusting groove (5) is formed in the top end of the fixed plate (4), the bottom end of the adjusting plate (3) extends into the adjusting groove (5), and a bottom plate (6) is fixedly arranged at the bottom end of the fixed plate (4). A cavity (7) is formed in the bottom end of the adjusting plate (3), two movable plates (8) are arranged in the cavity (7), three limiting support blocks (9) are fixedly arranged on the outer side of the movable plate (8), a plurality of limiting support grooves (10) are formed in the two sides of the fixed plate (4), and one end of the three limiting support blocks (9) penetrates through the adjusting plate (3) and extends into the three limiting support grooves (10).

2. A coal mine safety protection device according to claim 1, characterized in that: The cavity (7) is rotatably connected with a bidirectional threaded rod (11), the two ends of the bidirectional threaded rod (11) respectively penetrate through the two movable plates (8), the bidirectional threaded rod (11) is connected with the two movable plates (8) through threads and the thread directions are opposite, a rotating rod (12) is arranged on the inner side of the adjusting plate (3), one end of the rotating rod (12) penetrates through the inner side of the adjusting plate (3) and extends into the cavity (7), one end of the rotating rod (12) is rotatably connected with the adjusting plate (3), a first bevel gear (13) is fixedly arranged at one end of the rotating rod (12), a second bevel gear (14) is fixedly arranged at the outer end of the bidirectional threaded rod (11), the first bevel gear (13) and the second bevel gear (14) are meshed with each other, and a handle (15) is fixedly arranged at the other end of the rotating rod (12) and extends to the inner side of the fixed plate (4).

3. A coal mine safety protection device according to claim 2, characterised in that: A guide rod (16) is fixedly arranged in the cavity (7), and the guide rod (16) is arranged at the top of the bidirectional threaded rod (11).

4. A coal mine safety protection device according to claim 2, characterized in that: The inner side of the fixed plate (4) is provided with a movable groove (17), and the other end of the rotating rod (12) penetrates through the movable groove (17).

5. The coal mine safety protection device of claim 1, wherein: A plurality of reinforcing plates (18) are fixedly arranged between the top end of the supporting plate (1) and the bottom end of the arc-shaped protection plate (2).

6. A coal mine safety protection device according to claim 1, characterized in that: The connecting and limiting assembly comprises a connecting block (19) fixedly arranged at the top end of the adjusting plate (3), a plurality of connecting grooves (20) are formed in the bottom end of the supporting plate (1), one end of the connecting block (19) penetrates through the connecting grooves (20) and extends to between the supporting plate (1) and the arc-shaped protection plate (2), a plurality of fixed blocks (21) are fixedly arranged at the top end of the supporting plate (1), the fixed blocks (21) are arranged on the inner side of the top end of the connecting block (19), an L-shaped limiting plate (22) is arranged on the inner side of the fixed block (21), a limiting groove (23) is formed in the connecting block (19), the horizontal part of the L-shaped limiting plate (22) penetrates through the fixed block (21) and extends into the limiting groove (23), and a spring (24) is fixedly arranged between the vertical part of the L-shaped limiting plate (22) and the inner side of the fixed block (21).

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