Tunnel blasting construction damping device

Abstract

The utility model relates to the technical field of blasting construction, and discloses a tunnel blasting construction damping device which comprises a containing box, a stress rod is connected to the inner wall of the top end of the containing box in a sliding mode, a buffer plate is fixedly connected to the top end of the stress rod, and a fixing plate is fixedly connected to the outer portion of the containing box. Supporting rods are in threaded connection with the interiors of the left side and the right side of the fixing plate, rotating handles are fixedly connected to the exteriors of the supporting rods, driving assemblies are rotatably connected to the interiors of the supporting rods, drill bits are fixedly connected to the bottom ends of the supporting rods, and a plurality of stress blocks are rotatably connected to the inner walls of the supporting rods; the sides, far away from each other, of the multiple stress blocks are fixedly connected with stop blocks. According to the shock absorption device, the driving disc is rotated to drive the moving ring to extrude the check block, then the device is fixed more stably, the situation that the device moves and accelerates abrasion during blasting vibration is avoided, and the overall shock absorption effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting construction, in particular to a tunnel blasting construction shock absorbing device. Background Art

[0002] Tunnel blasting is a common blasting method in underground engineering, used to mine tunnels or dig other underground spaces. It usually involves drilling holes in rock or soil, then filling them with explosives, and finally detonating the explosives to break the rock or soil and form the desired tunnel structure. During the blasting process, the shock waves and vibrations generated by the explosion will propagate into the surrounding strata and underground structures, causing damage to the surrounding environment and buildings. In order to reduce these damages, measures need to be taken to control and slow down the blasting vibrations.

[0003] After searching, the Chinese patent document announcement number is: CN220524795U. This utility model relates to the technical field of tunnel blasting construction, and in particular to a tunnel blasting construction shock-absorbing device, which solves the problem in the prior art that the potential energy generated by the blasting is affected. If there is no sufficient safety support and protection for the inside of the tunnel, it may cause the frame used to support the tunnel to break. In severe cases, it may also cause the tunnel to collapse. A tunnel blasting construction shock-absorbing device includes a base plate, the top of the base plate is fixedly connected to a vertical pipe, the upper part of the inner cavity of the vertical pipe is slidably connected to a conical slide rod, and the inner cavity of the vertical pipe and below the conical slide rod are provided with a plurality of force-bearing round rods. The utility model reduces the impact of tunnel blasting construction on the frame inside the tunnel through structural design, effectively differentiates the impact force on the soil layer and the connection area of ​​the device, thereby strengthening the support for the tunnel and improving the safety of the tunnel during the blasting process.

[0004] The above patent mentions in the beneficial effects that "when personnel use it, they can move the device to the inside of the tunnel, so that the force-bearing pad 5 is tightly fitted with the top of the tunnel. When an explosion occurs inside the tunnel, the impacted soil layer will transmit the impact force, so that after the force-bearing pad 5 is stressed, it will drive the vertical rod 4 to move downward, and then the vertical rod 4 will drive the conical slide bar 7 to move toward the inner cavity of the vertical tube 3. During the displacement of the conical slide bar 7, the arc plate 8 is squeezed by the conical slide bar 7, so that it drives the corresponding force-bearing round rod 10 to move backward. One end of the force-bearing round rod 10 collides with the corresponding load-bearing base 11, and the kinetic energy absorbed by the force-bearing pad 5 is divided into multiple parts for conversion, thereby achieving a shock-absorbing effect. Through the arrangement of the vertical rod 4, the force received by the force-bearing pad 5 can be effectively transmitted to the inside of the vertical tube 3 to apply a force to the conical slide bar 7. Through the arrangement of the fixed seat 6, the effect of With the support of the outer shell 12 and the stressed round rod 10, the arc plate 8 is set so that it can cooperate with the tapered slide bar 7 to bear force and drive the stressed round rod 10 to move. The vertical pipe 3 is set so that the displacement trajectory of the tapered slide bar 7 is limited. The protective shell 2 is set to protect its internal structure from external forces. The structural design reduces the impact of tunnel blasting construction on the frame inside the tunnel, effectively differentiates the impact force on the soil layer and the connection area of ​​the device, thereby strengthening the support for the tunnel and improving the safety of the tunnel during the blasting process. However, the device will shift or swing during the blasting vibration, accelerate the wear of components, shorten the service life, and cannot stably exert its shock absorption function, resulting in partial or complete transmission of vibration energy to surrounding structures, reducing the overall shock absorption effect. For this reason, a tunnel blasting construction shock absorption device is proposed to solve the above problems. Summary of the invention

[0005] In order to make up for the above shortcomings, the utility model provides a tunnel blasting construction shock absorbing device, which aims to improve the problems in the prior art of wear of moving acceleration components during blasting vibration and reduced shock absorbing effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tunnel blasting construction shock absorbing device comprises a containing box, the top inner wall of the containing box is slidably connected with a force rod, the top of the force rod is fixedly connected with a buffer plate, the outside of the containing box is fixedly connected with a fixing plate, the left and right sides of the fixing plate are both threadedly connected with support rods, the outside of the support rod is fixedly connected with a rotating handle, the inside of the support rod is rotatably connected with a driving assembly, the bottom end of the support rod is fixedly connected with a drill bit, the inner wall of the support rod is rotatably connected with a plurality of force blocks, the far sides of the plurality of force blocks are fixedly connected with a stopper, the outside of the driving assembly is threadedly connected with a moving ring, the inside of the moving ring is provided with a telescopic spring, the inside of the moving ring is slidably connected with a plurality of limit disks, the outside of the plurality of limit disks is fixedly connected with a connecting ring, and the outside of the connecting ring is fixedly connected with an extrusion block;

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

[0009] The bottom end of the force-bearing rod is fixedly connected with a connecting plate, the bottom end of the connecting plate is fixedly connected with a force-bearing column, the left and right sides of the force-bearing column are rotatably connected with connecting rods, the bottom end of the connecting rod is rotatably connected with a moving block, a damper is arranged inside the receiving box, the bottom end of the receiving box is fixedly connected with a fixing rod, and the outside of the fixing rod is sleeved with two strong springs;

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

[0011] The driving assembly comprises a rotating rod, the top end of which is fixedly connected to a driving disk, the outer portion of the rotating rod is rotatably connected to the inner portion of the supporting rod, and the outer portion of the rotating rod is threadedly connected to the inner portion of the moving ring;

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

[0013] The bottom end of the rotating handle is in contact with the top end of the fixed plate, and the outer portion of the moving ring is slidably connected to the inner portion of the supporting rod;

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

[0015] The outer portion of the moving ring contacts the adjacent sides of the plurality of force-bearing blocks, and the outer portion of the extrusion block contacts the adjacent sides of the plurality of force-bearing blocks;

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

[0017] One end of the telescopic spring is fixedly connected to one side of the inner part of the moving ring, and the other end of the telescopic spring is fixedly connected to one side of the limiting plate;

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

[0019] The outer portion of the connecting ring is slidably connected to the inner wall of the moving ring, and the inner portion of the extrusion block is in contact with the outer portion of the moving ring;

[0020] As a further description of the above technical solution:

[0021] The outside of the connecting plate is slidably connected to the inside of the containing box, the inside of the moving block is slidably connected to the outside of the fixing rod, and the bottom end of the moving block is slidably connected to the inner bottom end of the containing box.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the moving ring is driven by the rotating driving disk to squeeze the block, thereby making the device more stably fixed, and the stability of the device when fixed is further increased under the elastic force of the telescopic spring, thereby avoiding the accelerated wear of the device during movement during blasting vibration and increasing the overall shock absorption effect.

[0024] In the utility model, the buffer plate is in contact with the tunnel, so that the force is evenly dispersed to the damper and the strong spring. This design allows the damper and the strong spring to move within their optimal working range to adapt to changing load conditions, thereby optimizing the shock absorption effect and more effectively absorbing and alleviating vibration energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a tunnel blasting construction shock absorbing device proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the support rod structure of a tunnel blasting construction shock absorbing device proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a mobile ring of a tunnel blasting construction shock absorbing device proposed by the utility model;

[0028] Figure 4 The utility model is a schematic diagram of a housing box structure of a tunnel blasting construction shock absorbing device.

[0029] Legend:

[0030] 1. Container; 2. Force-bearing rod; 3. Buffer plate; 4. Fixed plate; 5. Support rod; 6. Turning handle; 7. Turning rod; 8. Driving disk; 9. Drill bit; 10. Force block; 11. Stop block; 12. Moving ring; 13. Telescopic spring; 14. Limiting plate; 15. Connecting ring; 16. Extrusion block; 17. Connecting plate; 18. Force-bearing column; 19. Connecting rod; 20. Moving block; 21. Damper; 22. Fixed rod; 23. Power spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a tunnel blasting construction shock-absorbing device, including a containing box 1. The containing box 1 serves as the outer frame of the entire shock-absorbing device, providing protection and support for internal components. The top inner wall of the containing box 1 is slidably connected with a force-bearing rod 2. This design allows the force-bearing rod 2 to slide up and down when subjected to external force to adjust and absorb the impact force. The top of the force-bearing rod 2 is fixedly connected with a buffer plate 3. The plate directly faces the external impact and plays a first layer of protection, helping to disperse and absorb the initial impact force. The outside of the containing box 1 is fixedly connected with a fixing plate 4. The left and right sides of the fixing plate 4 are both threadedly connected with support rods 5, which are responsible for stabilizing the entire device. The support rod 5 is fixedly connected to the installation foundation. The outside of the support rod 5 is fixedly connected with a rotating handle 6, which can be manually operated to adjust the tension or position of the entire device. The bottom end of the rotating handle 6 contacts the top of the fixed plate 4. The inside of the support rod 5 is rotatably connected with a driving assembly. The driving assembly includes a rotating rod 7 for transmitting force. The top of the rotating rod 7 is fixedly connected with a driving disk 8 for facilitating manual operation by the staff. The outside of the rotating rod 7 is rotatably connected to the inside of the support rod 5. The outside of the rotating rod 7 is threadedly connected to the inside of the moving ring 12. The bottom end of the support rod 5 is fixedly connected with a drill bit 9 for fixing the entire device on a specific working surface.

[0033] The inner wall of the support rod 5 is rotatably connected with a plurality of force blocks 10 for transmitting the connecting force. The far sides of the plurality of force blocks 10 are fixedly connected with a stopper 11 for increasing the fixing force inside the operation site. The external thread of the driving component is connected with a moving ring 12 for movement and providing pressure to the force blocks 10. The outside of the moving ring 12 is slidably connected to the inside of the support rod 5. The outside of the moving ring 12 contacts with the adjacent sides of the plurality of force blocks 10. The inside of the moving ring 12 is provided with a telescopic spring 13 for providing spring force. The inside of the moving ring 12 is slidably connected with a plurality of limit plates. 14 is the position for the limit spring. One end of the telescopic spring 13 is fixedly connected to one side of the inner part of the moving ring 12, and the other end of the telescopic spring 13 is fixedly connected to one side of the limit plate 14. The outer parts of the plurality of limit plates 14 are fixedly connected with a connecting ring 15, and the outer parts of the connecting ring 15 are fixedly connected with an extrusion block 16. The outer parts of the extrusion block 16 are in contact with the adjacent sides of the plurality of force-bearing blocks 10. The extrusion block 16 is designed to increase the friction between the force-bearing blocks 10. The outer part of the connecting ring 15 is slidably connected to the inner wall of the moving ring 12, and the inner part of the extrusion block 16 is in contact with the outer part of the moving ring 12.

[0034] Reference Figure 1 and Figure 4 The bottom end of the force-bearing rod 2 is fixedly connected with a connecting plate 17, which is used to disperse the pressure from the force-bearing rod 2 and effectively transmit these forces to other connecting parts. The outside of the connecting plate 17 is slidably connected to the inside of the receiving box 1, allowing the position to be adjusted up and down within a certain range to adapt to impacts of different intensities. The bottom end of the connecting plate 17 is fixedly connected with a force-bearing column 18. This design is used to further transmit and support the impact force generated by the blasting, thereby enhancing the impact resistance of the structure. The left and right sides of the force-bearing column 18 are both rotatably connected with connecting rods 19. This layout allows the connecting rods 19 to rotate freely within a certain angle, helping to disperse the lateral force on the force-bearing column 18 and enhancing the stability of the overall structure. Qualitatively, the bottom end of the connecting rod 19 is rotatably connected with a moving block 20. This design allows the moving block 20 to slide along the bottom of the containing box 1 when subjected to force, thereby absorbing and alleviating the vibration transmitted from the force-bearing column 18 and the connecting plate 17. The bottom end of the moving block 20 is slidably connected to the inner bottom end of the containing box 1. A damper 21 is arranged inside the containing box 1 to absorb and mitigate the vibration and impact caused by the blasting, thereby reducing the impact of these forces on the equipment and the surrounding environment. The inner bottom end of the containing box 1 is fixedly connected with a fixed rod 22, and the inner part of the moving block 20 is slidably connected to the outside of the fixed rod 22. The outer part of the fixed rod 22 is provided with two strong springs 23 to increase the elasticity and durability of the entire system.

[0035] Working principle: first place the device in a suitable position, then rotate the rotating handle 6, and the rotation of the rotating handle 6 drives the support rod 5 to move the drill bit 9, and then rotate the driving disk 8, and the rotation of the driving disk 8 drives the rotating rod 7 to move, and drives the moving ring 12 to move, and then drives the extrusion block 16 to move under the sliding of the moving ring 12, and when it moves to a certain position, the extrusion block 16 will contact with the force block 10, and then the force block 10 will be squeezed, so that the force block 10 drives the stopper 11 to move, and the stopper 11 moves out from the inner wall of the support rod 5, increasing additional fixing force, and then when the extrusion block 16 contacts with the force block 10, the connecting ring 15 will also drive the limit plate 14 to move, and this movement will cause the telescopic spring 13 to be stressed, and under the stress of the telescopic spring 13, a rebound force will be generated, and this rebound force provides the force to squeeze the force block 10, so that the part of the stopper 11 that expands out , the position is more stable, and then the blasting work begins. When blasting occurs inside the tunnel, the impacted soil layer will transmit the impact force, which will be transmitted to the surface of the buffer plate 3. Then, after being subjected to the force, the buffer plate 3 will cause the force-bearing rod 2 to be subjected to force, and then under the force of the force-bearing rod 2, the connecting plate 17 will be driven to move inside the containing box 1, and the force movement of the connecting plate 17 will cause the force-bearing column 18 to move, and under the movement of the force-bearing column 18, the damper 21 and the connecting rod 19 will be subjected to force respectively, and under the force of the damper 21, a rebound force will be generated to offset the force received, and then under the force movement of the connecting rod 19, the moving block 20 will be driven to slide outside the fixed rod 22, and this movement will cause the strong spring 23 to be subjected to force, and then under the force of the strong spring 23, a rebound force will also be generated to offset the force received. This design can disperse the received force, thereby optimizing the shock absorption effect.

[0036] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tunnel blasting construction shock absorbing device, comprising a containing box (1), characterized in that: The top inner wall of the containing box (1) is slidably connected to a force-bearing rod (2), the top of the force-bearing rod (2) is fixedly connected to a buffer plate (3), the outside of the containing box (1) is fixedly connected to a fixing plate (4), the left and right sides of the fixing plate (4) are both threadedly connected to support rods (5), the outside of the support rod (5) is fixedly connected to a rotating handle (6), the inside of the support rod (5) is rotatably connected to a driving assembly, the bottom end of the support rod (5) is fixedly connected to a drill bit (9), and the support rod (5) is ) is rotatably connected to the inner wall of the plurality of force blocks (10), and the far sides of the plurality of force blocks (10) are fixedly connected to a stopper (11), the external thread of the driving assembly is connected to a moving ring (12), a telescopic spring (13) is arranged inside the moving ring (12), the interior of the moving ring (12) is slidably connected to a plurality of limit plates (14), the exterior of the plurality of limit plates (14) is fixedly connected to a connecting ring (15), and the exterior of the connecting ring (15) is fixedly connected to an extrusion block (16).

2. A tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The bottom end of the force-bearing rod (2) is fixedly connected to a connecting plate (17), the bottom end of the connecting plate (17) is fixedly connected to a force-bearing column (18), the left and right sides of the force-bearing column (18) are rotatably connected to connecting rods (19), the bottom end of the connecting rod (19) is rotatably connected to a moving block (20), a damper (21) is provided inside the accommodating box (1), the bottom end of the accommodating box (1) is fixedly connected to a fixing rod (22), and the outside of the fixing rod (22) is sleeved with two strong springs (23).

3. A tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The driving assembly comprises a rotating rod (7), the top end of the rotating rod (7) being fixedly connected to a driving disk (8), the outer portion of the rotating rod (7) being rotationally connected to the inside of the supporting rod (5), and the outer portion of the rotating rod (7) being threadedly connected to the inside of the moving ring (12).

4. A tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The bottom end of the rotating handle (6) contacts the top end of the fixed plate (4), and the outside of the movable ring (12) is slidably connected to the inside of the support rod (5).

5. The tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The exterior of the moving ring (12) contacts the adjacent sides of the plurality of force-bearing blocks (10), and the exterior of the extrusion block (16) contacts the adjacent sides of the plurality of force-bearing blocks (10).

6. A tunnel blasting construction shock absorbing device according to claim 1, characterized in that: One end of the telescopic spring (13) is fixedly connected to one side of the interior of the moving ring (12), and the other end of the telescopic spring (13) is fixedly connected to one side of the limiting plate (14).

7. The tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The outside of the connecting ring (15) is slidably connected to the inner wall of the moving ring (12), and the inside of the extrusion block (16) is in contact with the outside of the moving ring (12).

8. A tunnel blasting construction shock absorbing device according to claim 2, characterized in that: The exterior of the connecting plate (17) is slidably connected to the interior of the containing box (1), the interior of the moving block (20) is slidably connected to the exterior of the fixing rod (22), and the bottom end of the moving block (20) is slidably connected to the bottom end of the interior of the containing box (1).

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