Multi-size mine roadway supporting device

Abstract

The invention discloses a multi-size mine laneway supporting device, and relates to the technical field of mine laneway supporting, the multi-size mine laneway supporting device comprises two bases, and further comprises two first connecting bases, the two first connecting bases are rotationally installed on the corresponding bases respectively, and supporting rods are installed on the two first connecting bases through telescopic assemblies; and through the design of the telescopic assemblies, the longitudinal distance between the supporting rods and the first connecting bases can be adjusted, second connecting bases are rotationally installed on the two supporting rods correspondingly, and cross beams are fixedly installed on the side walls of the two second connecting bases correspondingly. The supporting device has the advantages that the supporting device can support mine laneways of different sizes, the supporting effect on the mine laneways can be guaranteed all the time, and when the mine laneways deform, crack, fall off of surrounding rock and the like or the supporting device deforms and loosens, the emergency lighting lamp can be automatically turned on, so that the mine laneways are protected. Workers can conveniently and safely evacuate in case of emergency, or timely discover the problems of the supporting device and maintain or replace the supporting device.

Description

Technical Field

[0001] The invention relates to the technical field of mine tunnel support, and in particular to a multi-size mine tunnel support device. Background Art

[0002] In the process of underground mineral mining, it is necessary to excavate mine tunnels to achieve the purposes of mining, transportation, ventilation, drainage, power supply, etc. to ensure the smooth progress of mineral mining. In order to ensure the stability of the mine tunnels, support devices must be used to support them after excavation is completed.

[0003] In order to meet different needs, the size of mine tunnels will also deviate. The size of the existing support device cannot be adjusted after installation, and cannot meet the support requirements of mine tunnels of different sizes. The applicability is poor, and the existing support device does not have an extension effect after installation. When the mine tunnel is deformed, cracked or the surrounding rock falls off, the supporting effect of the support device on the mine tunnel will also be affected, reducing the safety factor. Therefore, it is necessary to design a multi-size mine tunnel support device. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a multi-size mine tunnel support device, which solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A multi-size mine tunnel support device includes two bases and also includes: Two connecting seats 1, the two connecting seats 1 are rotatably mounted on the corresponding bases respectively, and the two connecting seats 1 are both mounted with support rods through telescopic components, and the design of the telescopic components can adjust the longitudinal spacing between the support rods and the connecting seat 1, the two supporting rods are both rotatably mounted with connecting seats 2, and the side walls of the two connecting seats 2 are both fixedly mounted with cross beams, a main beam is mounted between the two cross beams, and an adjustment component matched with the two cross beams is mounted on the main beam, and the adjustment component is used to adjust the transverse spacing between the two cross beams; The reinforcement part is composed of two reinforcement components, which are used to reinforce the support between the support rod and the cross beam. The reinforcement component includes a capstan fixedly mounted on the support rod, and a diagonal support rod is rotatably mounted on the capstan, and a capstan is also rotatably mounted on the other end of the diagonal support rod. A T-shaped block is fixedly mounted on the capstan away from the support rod, and a T-shaped groove is provided at the bottom of the cross beam to cooperate with the T-shaped block in transverse sliding; The pressure detection part is composed of two pressure detection components. The pressure detection component is used to apply pressure to the T-shaped block and detect its subsequent movement in the T-shaped groove after the diagonal brace completes the support of the crossbeam.

[0006] Furthermore, a connecting block 1 is fixedly installed on the base, and a rotating shaft 1 rotatably connected to a connecting seat 1 is fixedly installed on the connecting block 1, a connecting block 2 is fixedly installed on the support rod, and a rotating shaft 2 rotatably connected to a connecting seat 2 is fixedly installed on the connecting block 2, a plurality of positioning holes are provided on the side walls of the rotating shaft 1 and the rotating shaft 2, and positioning mechanisms are installed on the connecting seat 1 and the connecting seat 2, and the positioning mechanisms respectively cooperate with the corresponding positioning holes.

[0007] Furthermore, the positioning mechanism consists of a fixed block, a screw and a positioning rod, the fixed block is fixedly mounted on the side wall of the connecting seat, the screw is threadedly mounted on the fixed block, the positioning rod is fixedly mounted on the screw, and the positioning rod corresponds to the position of the positioning hole.

[0008] Furthermore, the telescopic assembly consists of a telescopic rod, a telescopic slot, a plug-in rod and a plurality of plug-in holes. The telescopic rod is fixedly mounted on an upper end of a connecting seat. The telescopic slot is provided at the bottom of the supporting rod, and the telescopic slot is slidably matched with the telescopic rod. The plurality of plug-in holes are all provided on the telescopic rod from front to back. The plug-in rod is inserted into the supporting rod from front to back, and the positions of the plug-in rod and the plug-in hole correspond.

[0009] Furthermore, the adjustment assembly consists of a bidirectional lead screw, a fixed gear ring and an adjusting gear. The bidirectional lead screw is rotatably installed in the main beam, and the two ends of the bidirectional lead screw are respectively threadedly connected to the corresponding cross beam. The fixed gear ring is fixedly installed in the middle section of the bidirectional lead screw. The adjusting gear is rotatably installed on the main beam through a round rod, and the adjusting gear is meshed with the fixed gear ring. One end of the adjusting gear is located outside the main beam, and a plurality of arc holes that penetrate left and right are evenly opened on the surface of the adjusting gear.

[0010] Furthermore, the pressure detection assembly consists of a screw rod, a movable block, a movable plate, a movable groove, a spring, a top plate and two mounting blocks. The two mounting blocks are fixedly mounted on the bottom of the beam, the screw rod is rotatably connected between the two mounting blocks, the movable block is threadedly connected to the screw rod, the movable plate is fixedly mounted on the top of the movable block, the movable groove is opened at the bottom of the beam, and the movable groove and the T-shaped groove are interconnected and cooperate with the movable plate to slide left and right, the top plate is also slidably mounted in the movable groove, and the spring is installed between the top plate and the movable plate.

[0011] Furthermore, a fixed rod that slidably cooperates with the movable plate is fixedly installed on the top plate, and a vertical rod is fixedly installed on the side wall of the fixed rod, a sliding groove that cooperates with the vertical rod is opened on the side wall of the movable groove, a docking rack is installed at the bottom of the vertical rod, a fixed seat is fixedly installed at the bottom of the movable block, and an emergency lighting lamp is fixedly installed on the fixed seat, a rotating rod is also rotatably installed on the fixed seat, and a fixed gear that cooperates with the docking rack is fixedly installed on the end of the rotating rod located outside the fixed seat, a power-on block is fixedly installed on the side wall of one end of the rotating rod located inside the fixed seat, and two power supply boards electrically connected to the emergency lighting lamps are fixedly installed in the fixed seat, and the two power supply boards are respectively located on both sides of the power-on block.

[0012] Furthermore, an adjusting rod is rotatably mounted on the vertical rod via a damping bearing, and the adjusting rod is fixedly connected to the docking rack.

[0013] Furthermore, two transverse grooves are provided at the bottom of the main beam and are slidably matched with the corresponding transverse beams. A limiting block is fixedly installed on the side wall of the transverse beam, and a limiting groove is provided on the side wall of the transverse groove and is slidably matched with the limiting block.

[0014] Compared with the prior art, the present invention has the following advantages: 1: Through the cooperation of the telescopic component, the adjustment component, the connecting seat 1 and the connecting seat 2, the size and shape of the support device can be adjusted according to the size and shape of the mine tunnel, so that it can effectively support mine tunnels of different sizes, greatly improving the application range of the support device.

[0015] 2: Through the cooperation of the reinforcement components and the pressure detection components, after the installation of the support device is completed, the supporting effect of the support rod on the cross beam can be improved, and the support rod, cross beam and main beam can always apply an additional outward expansion force to the mine tunnel, thereby ensuring the support effect of the mine tunnel when the contact surface between the mine tunnel and the support device is deformed, cracked or the surrounding rock falls off, thereby greatly improving the stability and safety factor of the support device.

[0016] 3: Through the coordination of fixed rods, support rods, docking racks and fixed gears, when the contact surface between the mine tunnel and the support device is deformed, cracked, the surrounding rock falls off, or the support device itself is deformed and loosened, the emergency lighting is automatically turned on by the movement of the top plate, so that the staff can evacuate safely in an emergency, or the problem of the support device can be discovered in time and repaired or replaced.

[0017] To sum up, the support device of the present invention can support mine tunnels of different sizes and can always ensure the supporting effect of the mine tunnels. When the mine tunnels are deformed, cracked, surrounding rock falls off, or the support device itself is deformed and loosened, the emergency lighting can automatically light up, which is convenient for the staff to evacuate safely in an emergency, or to promptly discover problems with the support device and repair or replace it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a multi-size mine tunnel support device proposed by the present invention; Figure 2 for Figure 1 A schematic diagram of the structure from another perspective; Figure 3 for Figure 1 Schematic diagram of structural decomposition; Figure 4 for Figure 2 Schematic diagram of structural decomposition; Figure 5 for Figure 4 The enlarged schematic diagram of the structure of the support rod on the left side; Figure 6 for Figure 5 A schematic diagram of the structure of part a in the middle is enlarged; Figure 7 for Figure 1 Left view of Figure 8 for Figure 7 Schematic diagram of the structure of the AA surface in the middle; Fig. 9 for Figure 8 The enlarged schematic diagram of the structure of part b; Fig.10 for Figure 8 The enlarged schematic diagram of the structure of part c; Fig.11 for Figure 4 An enlarged schematic diagram of the structure at one of the screw rods; Fig.12 for Fig.11 A magnified schematic diagram of the structure from another perspective; Fig.13 for Fig.12 Schematic diagram of the structural decomposition.

[0019] In the figure: 1, base; 2, connecting seat 1; 3, telescopic rod; 4, support rod; 5, connecting seat 2; 6, cross beam; 7, main beam; 8, rotating shaft 1; 9, connecting block 1; 10, rotating shaft 2; 11, connecting block 2; 12, fixed block; 13, screw; 14, positioning plug rod; 15, telescopic slot; 16, plug hole; 17, plug rod; 18, cross slot; 19, limit block; 20, limit slot; 21, two-way screw; 22, fixed gear ring; 2 3. Adjusting gear; 24. Capstan seat; 25. Diagonal support rod; 26. T-block; 27. T-slot; 28. Mounting block; 29. ​​Screw rod; 30. Moving block; 31. Moving plate; 32. Moving slot; 33. Spring; 34. Top plate; 35. Fixed rod; 36. Slide slot; 37. Vertical rod; 38. Fixed seat; 39. Emergency lighting; 40. Rotating rod; 41. Fixed gear; 42. Power block; 43. Adjusting rod; 44. Docking rack. DETAILED DESCRIPTION

[0020] Reference Figure 1-Figure 13 A multi-size mine tunnel support device includes two bases 1, the bases 1 are used to be fixed on the ground of the mine tunnel, and can be fixed by bolts or concrete pouring, and also includes two connecting seats 2, the two connecting seats 2 are rotatably mounted on the corresponding bases 1, and the two connecting seats 2 are both mounted with support rods 4 through telescopic components, a connecting block 9 is fixedly mounted on the base 1, and a rotating shaft 8 rotatably connected to the connecting seat 2 is fixedly mounted on the connecting block 9, and the design of the rotating shaft 8 can adjust the angle of the connecting seat 2 relative to the base 1, so the installation angle of the support rod 4 relative to the base 1 can be adjusted according to the shape of the mine tunnel, so that the support rod 4 can better fit the side wall of the mine tunnel and improve the overall stability; The design of the telescopic assembly can adjust the longitudinal distance between the support rod 4 and the connecting seat 2. The telescopic assembly consists of a telescopic rod 3, a telescopic slot 15, a plug rod 17 and a plurality of plug holes 16. The telescopic rod 3 is fixedly mounted on the upper end of the connecting seat 2. The telescopic slot 15 is provided at the bottom of the support rod 4, and the telescopic slot 15 and the telescopic rod 3 are slidably matched. A plurality of plug holes 16 are all provided on the telescopic rod 3 through the front and back. The plug rod 17 is inserted into the support rod 4 through the front and back, and the plug rod 17 corresponds to the position of the plug hole 16. By plugging the plug rod 17 with the corresponding plug hole 16, the distance between the support rod 4 and the base 1 can be adjusted, so that the cross beam 6 and the main beam 7 located at the top of the support rod 4 can effectively support the top walls of mine tunnels at different heights. A connecting seat 2 5 is rotatably mounted on each of the two support rods 4, and a crossbeam 6 is fixedly mounted on the side walls of the two connecting seats 2 5. A connecting block 2 11 is fixedly mounted on the support rod 4, and a rotating shaft 2 10 rotatably connected to the connecting seat 2 5 is fixedly mounted on the connecting block 2 11. Under the design of the rotating shaft 2 10, the connecting seat 2 5 can be rotated on the top of the support rod 4, thereby ensuring the supporting effect of the support rod 4 on the crossbeam 6 under the premise of effectively fitting the support rod 4 with the side wall of the mine tunnel; A plurality of positioning holes are provided on the side walls of the rotating shaft 8 and the rotating shaft 2 10, and positioning mechanisms are installed on the connecting seat 1 2 and the connecting seat 2 5, and the positioning mechanisms cooperate with the corresponding positioning holes respectively. The positioning mechanism consists of a fixing block 12, a screw 13 and a positioning plug 14. The fixing block 12 is fixedly installed on the side wall of the connecting seat 2, the screw 13 is threadedly installed on the fixing block 12, and the positioning plug 14 is fixedly installed on the screw 13, and the positioning plug 14 corresponds to the position of the positioning hole. When the angle adjustment of the support rod 4 is completed, the screw 13 is rotated to make the positioning plug 14 inserted into the corresponding positioning hole, so that the angle of the support rod 4 can be fixed, thereby ensuring that it effectively fits with the side wall of the mine tunnel.

[0021] A main beam 7 is installed between the two cross beams 6. Two cross grooves 18 are provided at the bottom of the main beam 7, which are slidably matched with the corresponding cross beams 6. The design of the cross grooves 18 allows the cross beam 6 to slide left and right at the bottom of the main beam 7. A limit block 19 is fixedly installed on the side wall of the cross beam 6. A limit groove 20 is provided on the side wall of the cross groove 18, which is slidably matched with the limit block 19. The cooperation between the limit block 19 and the limit groove 20 can ensure a stable connection between the cross beam 6 and the cross groove 18.

[0022] An adjustment component matched with the two cross beams 6 is installed on the main beam 7. The adjustment component is used to adjust the lateral spacing between the two cross beams 6. The adjustment component consists of a bidirectional lead screw 21, a fixed gear ring 22 and an adjustment gear 23. The bidirectional lead screw 21 is rotatably installed in the main beam 7, and the two ends of the bidirectional lead screw 21 are respectively threadedly connected with the corresponding cross beam 6. The fixed gear ring 22 is fixedly installed in the middle section of the bidirectional lead screw 21. The adjustment gear 23 is rotatably installed on the main beam 7 through a round rod, and the adjustment gear 23 is meshed with the fixed gear ring 22. One end of the adjustment gear 23 is located outside the main beam 7, and a plurality of arc holes penetrating left and right are evenly opened on the surface of the adjustment gear 23. When adjusting the distance between the two cross beams 6, the staff can use the existence of the arc-shaped hole to more conveniently rotate the adjusting gear 23, and then rotate the bidirectional screw 21 through the meshing effect of the adjusting gear 23 and the fixed gear ring 22, so that the two cross beams 6 can be closer to or farther away from each other, thereby achieving the support effect for mine tunnels of different widths. In order to ensure the stability of the two cross beams 6 after the distance is adjusted, two protrusions can be fixed on the front end side wall of the main beam 7, and a positioning rod that cooperates with multiple arc-shaped holes can be slidably set between the two protrusions, which is used to fix the position of the adjusting gear 23 on the main beam 7 after the distance between the two cross beams 6 is adjusted.

[0023] The reinforcement part is composed of two reinforcement components, which are used to reinforce the support between the support rod 4 and the cross beam 6. The reinforcement component includes a hanger 24 fixedly mounted on the support rod 4, and a diagonal support rod 25 is rotatably mounted on the hanger 24. The other end of the diagonal support rod 25 is also rotatably mounted on the hanger 24, and a T-shaped block 26 is fixedly mounted on the hanger 24 away from the support rod 4. A T-shaped slot 27 is provided at the bottom of the cross beam 6 to cooperate with the T-shaped block 26 for transverse sliding. When the angle of the support rod 4 relative to the base 1 changes, its angle relative to the cross beam 6 also changes at the same time. At this time, the diagonal support rod 25 rotates between the two hangers 24 to meet the angle change between the support rod 4 and the cross beam 6. At the same time, a triangular space is formed between the support rod 4, the cross beam 6 and the diagonal support rod 25 to ensure the supporting effect of the support rod 4 on the cross beam 6, and the T-shaped block 26 slides in the T-shaped slot 27 to avoid the problem that the angle rotation of the support rod 4 relative to the cross beam 6 is blocked due to the length limitation of the diagonal support rod 25.

[0024] The pressure detection part is composed of two pressure detection components. The pressure detection component is used to apply pressure to the T-block 26 and detect its subsequent movement in the T-slot 27 after the diagonal support rod 25 completes the support of the crossbeam 6. The pressure detection component is composed of a screw rod 29, a moving block 30, a moving plate 31, a moving groove 32, a spring 33, a top plate 34 and two mounting blocks 28. The two mounting blocks 28 are fixedly mounted on the bottom of the crossbeam 6, the screw rod 29 is rotatably connected between the two mounting blocks 28, the moving block 30 is threadedly connected to the screw rod 29, the moving plate 31 is fixedly mounted on the top of the moving block 30, the moving groove 32 is opened at the bottom of the crossbeam 6, and the moving groove 32 is interconnected with the T-slot 27 and slidably cooperates with the moving plate 31 left and right, the top plate 34 is also slidably mounted in the moving groove 32, and the spring 33 is installed between the top plate 34 and the moving plate 31. When the support rod 4 is relative to the crossbeam After the angle of 6 is adjusted, the screw rod 29 is rotated so that the moving block 30 pushes the moving plate 31 to move in the moving groove 32 in the direction close to the T-shaped block 26, and the connecting effect of the spring 33 is used to make the top plate 34 contact with the T-shaped block 26, and then the screw rod 29 is continued to be rotated so that the moving plate 31 squeezes the spring 33, so that the top plate 34 applies a certain pressure to the T-shaped block 26. Since the cross beam 6, the support rod 4 and the main beam 7 have already supported the mine tunnel at this time, the reaction force in the mine tunnel will limit the angle of the position of the cross beam 6, the support rod 4 and the main beam 7. At this time, the squeezing of the spring 33 will not cause the T-shaped block 26 to continue to move, but will always apply a certain thrust to the T-shaped block 26. By virtue of this thrust effect, the cross beam 6, the support rod 4 and the main beam 7 can always apply an outward expansion support effect to the contact surface with the mine tunnel, thereby greatly improving the support effect.

[0025] A fixed rod 35 that slidably cooperates with the movable plate 31 is fixedly installed on the top plate 34, and a vertical rod 37 is fixedly installed on the side wall of the fixed rod 35. A sliding groove 36 that cooperates with the vertical rod 37 is opened on the side wall of the movable groove 32. A docking rack 44 is installed at the bottom of the vertical rod 37. A fixed seat 38 is fixedly installed at the bottom of the movable block 30, and an emergency lighting lamp 39 is fixedly installed on the fixed seat 38. A rotating rod 40 is also rotatably installed on the fixed seat 38, and a fixed gear 41 that cooperates with the docking rack 44 is fixedly installed on the end of the rotating rod 40 located outside the fixed seat 38. A power-on block 42 is fixedly installed on the side wall of one end of the rotating rod 40 located inside the fixed seat 38. Two power supply boards electrically connected to the emergency lighting lamp 39 are fixedly installed in the fixed seat 38, and the two power supply boards are respectively located on both sides of the power-on block 42. After the support of the mine tunnel is completed, if the mine When the tunnel is deformed, cracked or the surrounding rock falls off, the contact surface between the support device and the mine tunnel will be displaced to a certain extent. At this time, the T-block 26 slides in the corresponding direction in the T-slot 27, which will drive the top plate 34 to slide relative to the movable plate 31 at the same time. When the top plate 34 slides, the fixed rod 35 drives the vertical rod 37 to move. The movement of the vertical rod 37 will cause the docking rack 44 to drive the fixed gear 41 to rotate. At this time, the power block 42 will contact a corresponding power supply board, and the emergency lighting 39 will be powered on for tight lighting, which is convenient for the staff to evacuate in time. At the same time, when the support device itself is deformed under pressure, the staff can also learn of the news through the lighting of the emergency lighting 39, which is convenient for timely maintenance or replacement of the support device, ensuring the support effect of the mine tunnel and improving the safety factor.

[0026] An adjusting rod 43 is rotatably mounted on the vertical pole 37 through a damping bearing, and the adjusting rod 43 is fixedly connected to the docking rack 44. By utilizing the design of the adjusting rod 43, the docking rack 44 can be rotated to a state where it is not meshed with the fixed gear 41 during the installation of the support device, thereby avoiding the problem of the emergency lighting 39 lighting up due to the movement of the top plate 34 during the installation process. After the installation is completed, the adjusting rod 43 is rotated again so that the docking rack 44 is in a meshing state with the fixed gear 41, so that the emergency lighting 39 can play its due role in the subsequent process.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A multi-size mine tunnel support device, comprising two bases (1), characterized in that: Also includes: Two connecting seats (2), the two connecting seats (2) are rotatably mounted on the corresponding base (1), and the two connecting seats (2) are both mounted with support rods (4) via telescopic components, the telescopic components are designed to adjust the longitudinal spacing between the support rods (4) and the connecting seat (2), the two supporting rods (4) are both rotatably mounted with connecting seats (5), and the side walls of the two connecting seats (5) are both fixedly mounted with cross beams (6), a main beam (7) is mounted between the two cross beams (6), and an adjustment component matched with the two cross beams (6) is mounted on the main beam (7), and the adjustment component is used to adjust the transverse spacing between the two cross beams (6); A reinforcement part, the reinforcement part is composed of two reinforcement components, the reinforcement components are used to reinforce the support between the support rod (4) and the cross beam (6), the reinforcement component comprises a capstan (24) fixedly mounted on the support rod (4), and a diagonal support rod (25) is rotatably mounted on the capstan (24), the other end of the diagonal support rod (25) is also rotatably mounted with the capstan (24), a T-shaped block (26) is fixedly mounted on the capstan (24) away from the support rod (4), and a T-shaped groove (27) is provided at the bottom of the cross beam (6) and is laterally slidably matched with the T-shaped block (26); The pressure detection part is composed of two pressure detection components. The pressure detection components are used to apply pressure to the T-shaped block (26) and detect its subsequent movement in the T-shaped groove (27) after the diagonal support rod (25) completes the support of the crossbeam (6).

2. A multi-size mine tunnel support device according to claim 1, characterized in that: The base (1) is fixedly mounted with a connecting block (9), and a rotating shaft (8) rotatably connected to the connecting seat (2) is fixedly mounted on the connecting block (9); the support rod (4) is fixedly mounted with a connecting block (11), and a rotating shaft (10) rotatably connected to the connecting seat (5) is fixedly mounted on the connecting block (11); a plurality of positioning holes are provided on the side walls of the rotating shaft (8) and the rotating shaft (10); positioning mechanisms are mounted on the connecting seat (2) and the connecting seat (5), and the positioning mechanisms are respectively matched with the corresponding positioning holes.

3. A multi-size mine tunnel support device according to claim 2, characterized in that: The positioning mechanism is composed of a fixing block (12), a screw rod (13) and a positioning plug rod (14); the fixing block (12) is fixedly mounted on the side wall of the connecting seat (2); the screw rod (13) is threadedly mounted on the fixing block (12); the positioning plug rod (14) is fixedly mounted on the screw rod (13); and the positioning plug rod (14) corresponds to the position of the positioning hole.

4. A multi-size mine tunnel support device according to claim 1, characterized in that: The telescopic assembly is composed of a telescopic rod (3), a telescopic slot (15), a plug-in rod (17) and a plurality of plug-in holes (16); the telescopic rod (3) is fixedly mounted on the upper end of the connecting seat (2); the telescopic slot (15) is provided at the bottom of the supporting rod (4), and the telescopic slot (15) and the telescopic rod (3) are slidably matched; the plurality of plug-in holes (16) are all provided on the telescopic rod (3) through the front and back; the plug-in rod (17) is inserted into the supporting rod (4) through the front and back, and the plug-in rod (17) and the plug-in holes (16) are located correspondingly.

5. The multi-size mine tunnel support device according to claim 1, characterized in that: The adjustment assembly comprises a bidirectional lead screw (21), a fixed gear ring (22) and an adjustment gear (23); the bidirectional lead screw (21) is rotatably mounted in the main beam (7), and both ends of the bidirectional lead screw (21) are respectively threadedly connected to the corresponding cross beam (6); the fixed gear ring (22) is fixedly mounted on the middle section of the bidirectional lead screw (21); the adjustment gear (23) is rotatably mounted on the main beam (7) via a round rod, and the adjustment gear (23) is meshed with the fixed gear ring (22); one end of the adjustment gear (23) is located outside the main beam (7), and a plurality of arc holes penetrating left and right are evenly opened on the surface of the adjustment gear (23).

6. A multi-size mine tunnel support device according to claim 1, characterized in that: The pressure detection assembly is composed of a screw rod (29), a moving block (30), a moving plate (31), a moving groove (32), a spring (33), a top plate (34) and two mounting blocks (28). The two mounting blocks (28) are fixedly mounted on the bottom of the cross beam (6). The screw rod (29) is rotatably connected between the two mounting blocks (28). The moving block (30) is threadedly connected to the screw rod (29). The moving plate (31) is fixedly mounted on the top of the moving block (30). The moving groove (32) is provided at the bottom of the cross beam (6). The moving groove (32) is interconnected with the T-shaped groove (27) and is slidably matched with the moving plate (31) left and right. The top plate (34) is also slidably mounted in the moving groove (32). The spring (33) is mounted between the top plate (34) and the moving plate (31).

7. A multi-size mine tunnel support device according to claim 6, characterized in that: A fixed rod (35) slidably matched with the movable plate (31) is fixedly mounted on the top plate (34), and a vertical rod (37) is fixedly mounted on the side wall of the fixed rod (35). A sliding groove (36) matching with the vertical rod (37) is provided on the side wall of the movable groove (32). A docking rack (44) is mounted on the bottom of the vertical rod (37). A fixed seat (38) is fixedly mounted on the bottom of the movable block (30), and an emergency lighting lamp (39) is fixedly mounted on the fixed seat (38). A rotating rod (40) is also rotatably mounted on the fixed seat (38), and a fixed gear (41) that matches the docking rack (44) is fixedly mounted on one end of the rotating rod (40) located outside the fixed seat (38), and a power supply block (42) is fixedly mounted on the side wall of one end of the rotating rod (40) located inside the fixed seat (38). Two power supply boards electrically connected to the emergency lighting lamp (39) are fixedly mounted inside the fixed seat (38), and the two power supply boards are respectively located on both sides of the power supply block (42).

8. A multi-size mine tunnel support device according to claim 7, characterized in that: An adjusting rod (43) is rotatably mounted on the vertical rod (37) via a damping bearing, and the adjusting rod (43) is fixedly connected to a docking rack (44).

9. A multi-size mine tunnel support device according to claim 1, characterized in that: The bottom of the main beam (7) is provided with two transverse grooves (18) that slidably cooperate with the corresponding transverse beams (6), a limit block (19) is fixedly mounted on the side wall of the transverse beam (6), and a limit groove (20) that slidably cooperates with the limit block (19) is provided on the side wall of the transverse groove (18).

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