Coal mining protection device

Abstract

The utility model discloses a protection device for coal mining. The protection device comprises a supporting top plate; the bottom fixing boxes are symmetrically arranged at the bottom of the supporting top plate; the bottom of the bottom fixing box is provided with an inner sliding support column, the inner sliding support column is arranged inside the bottom fixing box in a sliding mode, and the bottom of the inner sliding support column is provided with an inserting rod. The beneficial effects are that through the arrangement of the limiting bolts and the fixing side holes, limiting installation between the limiting bolts in internal thread connection with the fixing side frames and the fixing side holes in one sides of the inner sliding support columns is achieved; and the position of the inner sliding supporting column in the bottom fixing box is limited and fixed, the height positions of the inner sliding supporting column, the inserting rod and the bottom fixing box are adjusted, and the supporting height needed by coal mining is adjusted.

Description

Technical Field

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

[0002] Coal mining refers to the process of digging coal from underground coal seams and transporting it to the surface. Coal mining is mainly divided into two methods: open-pit mining and underground mining. Open-pit mining involves stripping and mining operations. First, the overlying rock layer is stripped to expose the coal seam, and then mining can be carried out. This method is suitable for mining areas with shallow coal seams, thin surface soil layers, and easy-to-strip mines. Underground mining requires the excavation of a series of shafts and tunnels (including rock tunnels and coal tunnels) to enter the underground coal seam, and then mining can be carried out. This method is suitable for mining areas with deep coal seams or surface conditions that are not suitable for open-pit mining. In coal mine mining operations, to ensure the stability of the mine tunnel structure and prevent collapse accidents, it is crucial to effectively support and protect the shaft. Currently, the protection measure commonly used in coal mining relies on a support frame structure. However, the height adjustment process of this protection method is relatively cumbersome, and the support frame's anti-collapse effect in coal mining is not ideal, making it difficult to fully guarantee the safety and stability of mining operations. Utility Model Content

[0003] The purpose of the present utility model is to provide a coal mine mining protection device to solve the problem that the protection measures commonly used in coal mine mining proposed in the above background technology rely on the support frame structure. However, the height position adjustment process of the support frame of this protection means is relatively cumbersome, and the anti-collapse effect of the support frame in coal mine mining is not ideal, making it difficult to fully guarantee the safety and stability of mining operations.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coal mining protection device, comprising:

[0005] Support the top plate;

[0006] A bottom fixing box is symmetrically arranged at the bottom of the supporting top plate;

[0007] An inner sliding support column is slidably arranged inside the bottom fixed box, and an insertion rod is provided at the bottom of the inner sliding support column;

[0008] Support top box, which is symmetrically arranged on the top of the support top plate;

[0009] An inner sliding support block is slidably arranged inside the supporting top box;

[0010] A top fixing plate, which is arranged on the top of the inner sliding support block;

[0011] The anti-collapse assembly is arranged outside the top fixed plate, and comprises hooks which are equidistantly fixed outside the top fixed plate, and an anti-collapse net is hung on one side of the hooks.

[0012] The water tank is arranged inside the bottom fixed box, and a plurality of atomizing nozzles are equidistantly fixed to the bottom of the water tank, and a water inlet pipe is fixed to one side of the water tank.

[0013] As a preferred scheme of the utility model, a plurality of fixed side holes are equidistantly arranged on one side of the inner sliding support column, a fixed side frame is fixed to one side of the bottom fixed box, a limiting bolt matched with the fixed side hole is screw-connected in the fixed side frame, and a movable side opening is arranged on one side of the bottom fixed box.

[0014] As a preferred scheme of the utility model, an adjusting screw rod is screw-connected in the inner sliding support block, the adjusting screw rod is rotationally connected with the supporting top box, a worm wheel is fixed to the outer side of the adjusting screw rod, a worm is rotationally arranged in the supporting top box, and the worm is meshingly connected with the worm wheel.

[0015] As a preferred scheme of the utility model, a rotating rod is rotationally arranged between the two supporting top boxes, the rotating rod is fixed with the worm, one side of one of the supporting top boxes is rotationally arranged with a rotating knob, and one end of one of the worms is fixed with the rotating knob.

[0016] As a preferred scheme of the utility model, a first limiting sliding plate is symmetrically fixed to the outer side of the inner sliding support block, the first limiting sliding plate is slidingly connected with the supporting top box, a second limiting sliding plate is symmetrically fixed to the outer side of the inner sliding support column, and the second limiting sliding plate is slidingly connected with the bottom fixed box.

[0017] As a preferred scheme of the utility model, a top support body is fixed to the top of the top fixed plate, a plurality of fixing rings are equidistantly arranged on both sides of the anti-collapse net, and expansion screws are arranged on one side of the fixing rings.

[0018] The invention can realize the limit installation between the limit bolt connected with the inner thread of the fixed side frame and the fixed side hole on one side of the inner sliding support, so that the position of the inner sliding support in the bottom fixing box is restricted and fixed, and the height position of the inner sliding support, the plug rod and the bottom fixing box is adjusted, so as to achieve the required support height of coal mine mining. By setting a worm, a worm gear and an adjusting screw, it is realized that when the worm gear rotates, the meshing worm gear is driven to rotate. When the worm gear rotates, the inner adjusting screw is driven to rotate and adjust, so as to complete the adjustment of the height position of the inner sliding support block outside the adjusting screw, and complete the adjustment of the height position of the top fixed plate and the top support body. The top support body supports the top of the shaft, and the overall stability of the bracket is improved. Combined with the cooperation between the hook and the anti-collapse net, the anti-collapse of the shaft is achieved. Through the cooperation between the expansion screw and the fixing ring, it is stably connected to the shaft, thereby improving the collapse prevention effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is the left side view of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the supporting top box of the utility model.

[0023] In the figure: 1. Support top plate; 2. Bottom fixed box; 3. Inner sliding support; 4. Insert rod; 5. Fixed side hole; 6. Fixed side frame; 7. Limit bolt; 8. Movable side opening; 9. Support top box; 10. Inner sliding support block; 11. Top fixed plate; 12. Hook; 13. Anti-collapse net; 14. Fixed ring; 15. Expansion screw; 16. Worm; 17. Rotating rod; 18. Adjusting screw; 19. Worm gear; 20. Rotating screw block; 21. Limit slide plate No. 1; 22. Limit slide plate No. 2; 23. Water tank; 24. Atomizing nozzle; 25. Top support body. DETAILED DESCRIPTION

[0024] 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.

[0025] See alsoFigures 1 to 4 The utility model provides a technical solution: a coal mine mining protection device, comprising: a supporting top plate 1; a bottom fixed box 2 is symmetrically fixed to the bottom of the supporting top plate 1; an inner sliding pillar 3 is slidably arranged inside the bottom fixed box 2, and a plug rod 4 is fixed to the bottom of the inner sliding pillar 3; a supporting top box 9 is symmetrically fixed to the top of the supporting top plate 1; an inner sliding support block 10 is slidably arranged inside the supporting top box 9; a top fixed plate 11 is fixed to the top of the inner sliding support block 10; an anti-collapse component is placed on the outside of the top fixed plate 11, and the anti-collapse component includes a hook 12, which is equidistantly fixed to the outside of the top fixed plate 11, and an anti-collapse net 13 is hung on one side of the hook 12; a water box 23 is fixed to the inner side of the bottom fixed box 2, and a plurality of atomizing nozzles 24 are equidistantly fixed to the bottom of the water box 23, and a water inlet pipe is fixed to one side of the water box 23.

[0026] It can be understood that the utility model can adjust the extended length position of the inner sliding support 3 in the bottom fixed box 2 by rotating the limit bolt 7 outward so that the limit bolt 7 leaves the fixed side hole 5 on one side of the current inner sliding support 3. By observing through the movable side opening 8, the limit bolt 7 and the fixed side hole 5 are re-fixed to limit the support height of the inner sliding support 3 and the bottom fixed box 2 to adapt to different positions. The rotating screw block 20 is rotated and adjusted. When the rotating screw block 20 rotates, it drives one of the worms 16 to rotate. When one of the worms 16 rotates, the other worm 16 is driven to rotate and adjusted through the rotating rod 17. When the worm 16 rotates, it drives the meshing worm gear 19 to rotate. When the worm gear 19 rotates, it drives the inner adjustment The joint screw rod 18 is rotated for adjustment to complete the adjustment of the height position of the inner sliding support block 10 outside the adjustment screw rod 18 in the support top box 9, and the top fixed plate 11 and the top support body 25 can be driven by the inner sliding support block 10 to adjust the height position, and the top support body 25 is supported by the top position of the tunnel, and the anti-collapse net 13 is hung by each hook 12, and fixed to the inner side of the tunnel through the cooperation between the expansion screw 15 and the fixing ring 14, so as to further improve the stability of the anti-collapse net 13 and improve the anti-collapse effect. The water inlet pipe of the water tank 23 is connected to the external water pump, and the water pump is pumped out through the water storage tank to supply water to the water tank 23, and sprayed out through the atomizing nozzle 24 to reduce dust in the environment during coal mining.

[0027] See also Figures 1 to 4 A plurality of fixed side holes 5 are equidistantly provided on one side of the inner sliding support 3, a fixed side frame 6 is fixedly connected to one side of the bottom fixed box 2, and the internal thread of the fixed side frame 6 is connected with a limit bolt 7 that cooperates with the fixed side hole 5, and a movable side opening 8 is provided on one side of the bottom fixed box 2.

[0028] It can be understood that the utility model observes the positions of the inner limit bolt 7 and the fixed side hole 5 through the movable side opening 8, which facilitates the insertion of the limit bolt 7 into the fixed side hole 5 on one side of the inner sliding pillar 3 and adjusts the height position of the inner sliding pillar 3 on the inner side of the bottom fixed box 2.

[0029] See also Figures 1 to 4 The internal thread of the inner sliding support block 10 is connected with an adjusting screw 18, which is rotatably connected to the support top box 9. A worm gear 19 is fixed to the outside of the adjusting screw 18, and a worm 16 is rotatably provided inside the support top box 9. The worm 16 is meshed with the worm gear 19.

[0030] It can be understood that the present invention rotates the worm 16, which drives the meshing worm wheel 19 to rotate, and when the worm wheel 19 rotates, it drives the inner adjusting screw 18 to rotate and adjust, thereby adjusting the height position of the inner sliding support block 10 outside the adjusting screw 18 and adjusting the support height.

[0031] See also Figures 1 to 4 A rotating rod 17 is rotatably provided between the two supporting top boxes 9, and the rotating rod 17 is fixedly connected to the worm 16. A rotating screw block 20 is rotatably provided on one side of one of the supporting top boxes 9, and one end of one of the worm 16 is fixedly connected to the rotating screw block 20.

[0032] It is understandable that the rotating screw block 20 of the present invention drives one of the worms 16 to rotate, and one of the worms 16 drives the other worm 16 to rotate through the rotating rod 17, thereby completing the synchronous rotation adjustment of the two worms 16.

[0033] See also Figures 1 to 4 The outer side of the inner sliding support block 10 is symmetrically fixed with a No. 1 limiting slide 21, which is slidingly connected to the supporting top box 9. The outer side of the inner sliding support pillar 3 is symmetrically fixed with a No. 2 limiting slide 22, which is slidingly connected to the bottom fixed box 2.

[0034] It can be understood that the No. 1 limiting slide 21 of the utility model slides with the supporting top box 9 to limit the adjustment position of the inner sliding support block 10, and the No. 2 limiting slide 22 slides with the bottom fixed box 2 to limit the adjustment position of the inner sliding support 3.

[0035] See also Figures 1 to 4 The top of the top fixing plate 11 is fixed with a top support body 25 , and a plurality of fixing rings 14 are equidistantly provided on both sides of the anti-collapse net 13 , and an expansion screw 15 is provided on one side of the fixing ring 14 .

[0036] It is understandable that the present invention fixes the anti-collapse net 13 to the side of the shaft through the cooperation between the expansion screw 15 and the fixing ring 14, thereby improving the stability of the anti-collapse net 13 and preventing the occurrence of collapse accidents.

[0037] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] 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 mining protection device, characterized in that: include: Supporting top plate (1); A bottom fixing box (2), the bottom fixing box (2) is symmetrically arranged at the bottom of the supporting top plate (1); An inner sliding support (3), the inner sliding support (3) is slidably arranged inside the bottom fixed box (2), and an insertion rod (4) is provided at the bottom of the inner sliding support (3); A supporting top box (9), the supporting top box (9) is symmetrically arranged on the top of the supporting top plate (1); An inner sliding support block (10), the inner sliding support block (10) is slidably arranged inside the supporting top box (9); A top fixing plate (11), the top fixing plate (11) is arranged on the top of the inner sliding support block (10); An anti-collapse component is placed on the outside of the top fixed plate (11), and the anti-collapse component includes a hook (12), the hook (12) is fixedly connected to the outside of the top fixed plate (11) at equal distances, and an anti-collapse net (13) is hung on one side of the hook (12); A water passage box (23) is provided on the inner side of the bottom fixed box (2); a plurality of atomizing nozzles (24) are fixedly connected at equal intervals to the bottom of the water passage box (23); and a water inlet pipe is fixedly connected to one side of the water passage box (23).

2. A coal mining protection device according to claim 1, characterized in that: A plurality of fixed side holes (5) are equidistantly provided on one side of the inner sliding support (3); a fixed side frame (6) is fixedly connected to one side of the bottom fixed box (2); the internal thread of the fixed side frame (6) is connected to a limiting bolt (7) that cooperates with the fixed side hole (5); and a movable side opening (8) is provided on one side of the bottom fixed box (2).

3. The coal mining protection device according to claim 1, characterized in that: The inner thread of the inner sliding support block (10) is connected to an adjusting screw rod (18), and the adjusting screw rod (18) is rotatably connected to the supporting top box (9). The outer side of the adjusting screw rod (18) is fixedly connected to a worm wheel (19), and the interior of the supporting top box (9) is rotatably provided with a worm (16), and the worm rod (16) is meshedly connected to the worm wheel (19).

4. A coal mining protection device according to claim 3, characterized in that: A rotating rod (17) is rotatably provided between the two supporting top boxes (9), and the rotating rod (17) is fixedly connected to the worm (16). A rotating screw block (20) is rotatably provided on one side of one of the supporting top boxes (9), and one end of one of the worms (16) is fixedly connected to the rotating screw block (20).

5. The coal mining protection device according to claim 1, characterized in that: A first limiting slide plate (21) is symmetrically fixed to the outer side of the inner sliding support block (10), and the first limiting slide plate (21) is slidably connected to the supporting top box (9). A second limiting slide plate (22) is symmetrically fixed to the outer side of the inner sliding support column (3), and the second limiting slide plate (22) is slidably connected to the bottom fixed box (2).

6. The coal mining protection device according to claim 1, characterized in that: A top support body (25) is fixed to the top of the top fixing plate (11), and a plurality of fixing rings (14) are equidistantly arranged on both sides of the anti-collapse net (13), and an expansion screw (15) is arranged on one side of the fixing ring (14).

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