Underground coal mine roadway supporting device

Abstract

The utility model relates to the technical field of roadway supporting, and discloses a coal mine underground roadway supporting device which comprises an arch-shaped frame, a mounting groove is formed in the top of the arch-shaped frame, a supporting plate is connected to the inner wall of the mounting groove in a sliding mode, a plurality of threaded holes are formed in the bottom of the arch-shaped frame, and threaded heads are connected to the inner walls of the threaded holes in a threaded mode. A reinforcing column is fixedly connected to the bottom end of the threaded head, a reinforcing plate is slidably connected to the bottom of the outer wall of the arch-shaped frame, a plurality of arc-shaped blocks are fixedly connected to the bottoms of the front side and the rear side of the arch-shaped frame, and screws are connected to the inner walls of the arc-shaped blocks in a threaded mode. According to the utility model, the arch-shaped frame is provided with the mounting grooves and the threaded holes, the supporting plates and the reinforcing columns are assembled to form the frame, the reinforcing plates can slide and are fixed by screws through the arc-shaped blocks of the arch-shaped frame, the structural strength is improved, the design is convenient to transport and operate in a narrow space, the working efficiency and convenience are improved, and the use requirements are met.

Description

Technical Field

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

[0002] Coal mines are the key to coal mining. They have a wide range of depths and a complex geological environment. The strata composed of sandstone, shale and coal seams have different rock mechanical properties, and geological structures such as faults and folds are frequent, which makes the stability of the rock mass worrying. At the same time, the increasing mining depth brings about increased ground stress, accompanied by harsh conditions of high ground temperature and high gas. Against this background, ensuring the stability of the tunnels has become the key to the safe and efficient coal mining operations. In order to ensure the stability of the underground tunnels in coal mines, prevent roof collapse and two-side collapse, and ensure the safety of personnel and the smooth progress of mining operations, support devices came into being and became an indispensable guarantee for coal mine safety production, thereby ensuring that personnel can carry out operations in a safe environment and coal mining work can be carried out smoothly and orderly.

[0003] In coal mines, the excavation of tunnels will break the equilibrium state of the original rock stress, redistribute the stress, and the rocks around the tunnel will tend to move toward the inside of the tunnel. If this displacement is not controlled, it will cause the rock to deform and crack. Therefore, the staff will support the tunnel to avoid safety problems. The existing support devices will take corresponding measures according to their characteristics. They use support devices with adjustable functions to adapt to the new stress state by adjusting their own supporting force and retractable components, and re-reinforce and balance the deformed parts. However, this solution has many problems. When making adjustments and repairs, professionals need to rely on experience and accurate monitoring data. A slight deviation may lead to poor support effect. In addition, in small tunnel spaces, due to the large structure of the device, it cannot be easily assembled, which affects the work efficiency and difficulty of operation, and it is difficult to meet the use requirements. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a coal mine underground tunnel support device, aiming to improve the problems in the prior art such as complex structure, inconvenient assembly in limited space, reduced work efficiency, and increased operational difficulty.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal mine underground tunnel support device, including an arch frame, the top of the arch frame is provided with an installation groove, the inner wall of the installation groove is slidably connected to a support plate, the bottom of the arch frame is provided with a plurality of threaded holes, the inner wall of the threaded hole is threadedly connected with a threaded head, the bottom end of the threaded head is fixedly connected with a reinforcing column, the bottom of the outer wall of the arch frame is slidably connected with a reinforcing plate, the front and rear bottom sides of the arch frame are fixedly connected with a plurality of arc blocks, the inner wall of the arc block is threaded with a screw, the top middle part of the reinforcing plate is fixedly connected with the reinforcing frame, the top of the reinforcing frame is provided with a plurality of column grooves, and the bottom end of the arch frame is provided with an adjustment mechanism, which is used to adjust the height to adapt to the tunnel.

[0006] As a further description of the above technical solution:

[0007] The adjustment mechanism includes a connecting sleeve, the top of the connecting sleeve is fixedly connected to the bottom end of the arch frame, the inner wall of the connecting sleeve on the front left end is threadedly connected with a threaded column, the bottom end of the threaded column is fixedly connected to the support frame, the bottom of the outer wall of the support frame is slidably connected with the adjustment sleeve, and a plurality of adjustment holes are opened on the front side of the support frame, and the inner walls of the adjustment holes are slidably connected with fixing bolts.

[0008] As a further description of the above technical solution:

[0009] A plurality of protection strips are fixedly connected to the top of the support plates, and the plurality of protection strips are arranged at equal distances.

[0010] As a further description of the above technical solution:

[0011] A plurality of concave blocks are fixedly connected to the left and right sides of the inner wall of the support plate, and a sliding groove is provided on the inner wall of the concave block on the left side.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the sliding groove is slidably connected with a slider, and the right side of the slider is fixedly connected with a hook.

[0014] As a further description of the above technical solution:

[0015] A plurality of protection blocks are fixedly connected to the bottom of the outer wall of the adjustment sleeve, and the plurality of protection blocks are symmetrically arranged.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the adjustment sleeve is fixedly connected with a circular piece, and the inner wall of the column groove is fitted with the bottom end of the reinforcement column.

[0018] As a further description of the above technical solution:

[0019] The bottom ends of the circular pieces are fixedly connected with a plurality of conical feet, and the top ends of the screws pass through the corners of the inner wall of the reinforcing plate.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, by providing mounting grooves and threaded holes on the arch frame, the support plates and reinforcement columns can be assembled into a support frame. The arc-shaped blocks of the arch frame allow the reinforcement plates to slide and be fixed with screws, thereby lifting the reinforcement frame and reinforcement columns and enhancing the structural strength. This modular design facilitates transportation and operation in a small space, improves work efficiency and convenience, and meets usage requirements.

[0022] 2. In the utility model, the connecting sleeve connects the arch frame to the support frame and is threadedly connected through a threaded column. The adjusting sleeve slides on the outer wall of the support frame to allow the support frame to be extended and retracted. The support frame is provided with a plurality of adjustment holes, and the adjusted size can be locked by inserting a fixing bolt. After assembly, the adjustment mechanism can adjust the height to adapt to different lanes. This structure is simple and easy to operate, which improves adaptability and meets adjustment requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front perspective view of the reinforcement plate of the underground coal mine tunnel support device proposed by the present utility model;

[0024] Figure 2 This is a partial structural breakdown diagram of the support plate of the underground coal mine tunnel support device proposed by the utility model;

[0025] Figure 3 This is a partial structural diagram of the arch frame of the underground coal mine tunnel support device proposed by the utility model;

[0026] Figure 4 This is a diagram showing the partial structure of the support frame of the underground coal mine tunnel support device proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the partial structure of the hook of the coal mine underground tunnel support device proposed by the utility model.

[0028] Legend:

[0029] 1. Arch frame; 2. Adjustment mechanism; 201. Connecting sleeve; 202. Threaded column; 203. Support frame; 204. Adjustment sleeve; 205. Adjustment hole; 206. Fixing bolt; 3. Mounting slot; 4. Support plate; 5. Threaded hole; 6. Threaded head; 7. Reinforcement column; 8. Reinforcement plate; 9. Arc block; 10. Screw; 11. Reinforcement frame; 12. Column slot; 13. Protective strip; 14. Concave block; 15. Slide groove; 16. Slider; 17. Hook; 18. Protective block; 19. Round piece; 20. Conical foot. DETAILED DESCRIPTION

[0030] 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.

[0031] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 3 The utility model provides an embodiment of a coal mine tunnel support device, including an arch frame 1, a mounting groove 3 is provided on the top of the arch frame 1, and a support plate 4 is slidably connected to the inner wall of the mounting groove 3. The arch frame 1 makes the support device have stable strength as long as it is connected to the frame body. The mounting groove 3 facilitates the installation of other components and enhances the stability of the arch frame 1 in structure. The mounting groove 3 can achieve a smooth sliding connection with the support plate 4, ensuring the flexible adjustment of the support plate 4 during use. A plurality of threaded holes 5 are provided at the bottom of the arch frame 1, and the inner wall of the threaded hole 5 is threadedly connected with a threaded head 6, and the bottom end of the threaded head 6 is fixedly connected with Reinforcing column 7, the bottom of the outer wall of the arch frame 1 is slidably connected with a reinforcing plate 8, and a plurality of arc blocks 9 are fixedly connected to the bottom of the front and rear sides of the arch frame 1. The inner wall of the arc block 9 is threaded with a screw 10, and the middle part of the top of the reinforcing plate 8 is fixedly connected with a reinforcing frame 11. The top of the reinforcing frame 11 is provided with a plurality of column grooves 12, and the inner wall of the arc block 9 is threaded with a screw 10, so that the whole structure can be more stable when under pressure. The reinforcing frame 11 can be docked with the reinforcing column 7. These column grooves 12 are for docking the reinforcing column 7 to improve the structural strength. The bottom end of the arch frame 1 is provided with an adjustment mechanism 2, which is used to adjust the height to adapt to the lane.

[0032] Please see the attached Figure 1 and attached Figure 4The adjusting mechanism 2 includes a connecting sleeve 201, the top of the connecting sleeve 201 is fixedly connected to the bottom end of the arch frame 1, the inner wall of the left front connecting sleeve 201 is threadedly connected with a threaded column 202, and the bottom end of the threaded column 202 is fixedly connected to the support frame 203, the connecting sleeve 201 is fixedly connected to the bottom end of the arch frame 1, ensuring the stability of the structure, and the bottom end of the threaded column 202 is fixedly connected to the support frame 203, further enhancing the stability of the entire mechanism, the bottom of the outer wall of the support frame 203 is slidably connected with an adjusting sleeve 204, and the front side of the support frame 203 is provided with a plurality of adjusting holes 205, and the inner wall of the adjusting hole 205 is slidably connected with a fixing bolt 206, and the adjusting hole 205 is used to position the required length, and the fixing bolt 206 can control the position of the support frame 203 in the adjusting sleeve 204, thereby realizing fine adjustment of the entire adjusting mechanism 2.

[0033] Please see the attached Figure 1 and attached Figure 5 , multiple protection strips 13 are fixedly connected to the top of the support plate 4, and the multiple protection strips 13 are arranged at equal distances. These protection strips 13 are evenly and equidistantly arranged above the support plate 4 to ensure the strength of the structure and improve the service life. Multiple concave blocks 14 are fixedly connected to the left and right sides of the inner wall of the support plate 4. A slide groove 15 is provided on the inner wall of the left concave block 14. A slider 16 is slidably connected to the inner wall of the slide groove 15. A hook 17 is fixedly connected to the right side of the slider 16. The sliding connection method of the slider 16 is convenient for installation and removal at any time, and the hook 17 is used to realize the function of hanging equipment and structural stability.

[0034] Please see the attached Figure 1 and attached Figure 4 , the bottom of the outer wall of the adjusting sleeve 204 is fixedly connected with multiple protective blocks 18, and the multiple protective blocks 18 are symmetrically arranged. These protective blocks 18 are symmetrically arranged to ensure that the pressure and impact force can be evenly dispersed during use. The bottom end of the adjusting sleeve 204 is fixedly connected with a circular piece 19, and the inner wall of the column groove 12 fits with the bottom end of the reinforcing column 7. The bottom end of the circular piece 19 is fixedly connected with multiple conical feet 20, and the top end of the screw 10 passes through the inner wall corner of the reinforcing plate 8. These conical feet 20 contribute to the stability and grip of the adjusting sleeve 204 on different surfaces. The top end of the screw 10 passes through the inner wall corner of the reinforcing plate 8. This connection method ensures a firm combination between the adjusting sleeve 204 and the reinforcing plate 8, thereby improving the strength and durability of the overall structure.

[0035] Working principle: By opening a mounting groove 3 on the arch frame 1, the support plate 4 can be directly connected to the groove, and a threaded hole 5 is provided at the bottom of the arch frame 1, and the reinforcing column 7 with a threaded head 6 can be threaded into the inner wall of the threaded hole 5 to form a support frame. Since an arc block 9 is also provided on the arch frame 1, the reinforcing plate 8 with an open design can slide on the arch frame 1, and the reinforcing plate 8 is moved upward by tightening the screw 10, thereby driving the reinforcing frame 11 connected to the top of the reinforcing plate 8 to move upward, so that the column groove 12 opened on the reinforcing frame 11 docks and squeezes the bottom of the reinforcing column 7, so that the support structure has higher strength. Such a structure is composed of multiple components, which is convenient for transportation and operation in a narrow space, improves work efficiency and convenience, and has a good support effect, meeting the use requirements;

[0036] It is connected to the bottom end of the arch frame 1 through the connecting sleeve 201, and can be threadedly connected to the support frame 203 provided with a threaded column 202 through the connecting sleeve 201, and the adjusting sleeve 204 is slidably connected to the outer wall of the support frame 203, so that the support frame 203 can be extended and retracted through the adjusting sleeve 204. Since multiple adjustment holes 205 are provided on the support frame 203, when the appropriate length is adjusted, it is only necessary to insert the fixing bolt 206 through the hole on the adjusting sleeve 204 into the adjusting hole 205 to lock the adjusted size. After the support structure is assembled, the appropriate height can be adjusted to adapt to the lane through the adjusting mechanism 2. Such a structure is simple, can adapt to the environment through telescopic adjustment, improves adaptability, and is simple to operate, meeting the adjustment needs.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coal mine tunnel support device, comprising an arch frame (1), characterized in that: The top of the arch frame (1) is provided with a mounting groove (3), the inner wall of the mounting groove (3) is slidably connected to a supporting plate (4), the bottom of the arch frame (1) is provided with a plurality of threaded holes (5), the inner wall of the threaded hole (5) is threadedly connected to a threaded head (6), the bottom end of the threaded head (6) is fixedly connected to a reinforcing column (7), the bottom of the outer wall of the arch frame (1) is slidably connected to a reinforcing plate (8), the front and rear bottoms of the arch frame (1) are fixedly connected to a plurality of arc blocks (9), the inner wall of the arc blocks (9) is threadedly connected to a screw (10), the top middle part of the reinforcing plate (8) is fixedly connected to a reinforcing frame (11), the top of the reinforcing frame (11) is provided with a plurality of column slots (12), and the bottom end of the arch frame (1) is provided with an adjustment mechanism (2), the adjustment mechanism (2) is used to adjust the height to adapt to the lane.

2. The coal mine underground tunnel support device according to claim 1, characterized in that: The adjustment mechanism (2) comprises a connecting sleeve (201), the top end of the connecting sleeve (201) is fixedly connected to the bottom end of the arch frame (1), the inner wall of the connecting sleeve (201) on the front left end is threadedly connected to a threaded column (202), the bottom end of the threaded column (202) is fixedly connected to a support frame (203), the bottom of the outer wall of the support frame (203) is slidably connected to an adjustment sleeve (204), the front side of each of the support frames (203) is provided with a plurality of adjustment holes (205), and the inner walls of the adjustment holes (205) are slidably connected to fixing bolts (206).

3. The coal mine underground tunnel support device according to claim 1, characterized in that: A plurality of protection strips (13) are fixedly connected to the top of each support plate (4), and the plurality of protection strips (13) are arranged at equal distances.

4. The coal mine underground tunnel support device according to claim 1, characterized in that: A plurality of concave blocks (14) are fixedly connected to the left and right sides of the inner wall of the support plate (4), and a sliding groove (15) is provided on the inner wall of the concave block (14) on the left side.

5. The coal mine underground tunnel support device according to claim 4, characterized in that: The inner wall of the slide groove (15) is slidably connected to a slider (16), and the right side of the slider (16) is fixedly connected to a hook (17).

6. The coal mine underground tunnel support device according to claim 2, characterized in that: A plurality of protective blocks (18) are fixedly connected to the bottom of the outer wall of the adjustment sleeve (204), and the plurality of protective blocks (18) are symmetrically arranged.

7. The coal mine underground tunnel support device according to claim 2, characterized in that: The bottom end of the adjustment sleeve (204) is fixedly connected to a circular piece (19), and the inner wall of the column groove (12) is in contact with the bottom end of the reinforcement column (7).

8. The coal mine underground tunnel support device according to claim 7, characterized in that: The bottom ends of the circular pieces (19) are fixedly connected to a plurality of conical feet (20), and the top ends of the screws (10) pass through the inner wall corners of the reinforcing plate (8).

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