Tunnel blasting construction damping device

Abstract

The utility model provides a damping device for tunnel blasting construction, which belongs to the technical field of tunnel blasting construction and comprises a mounting frame, a supporting plate is fixed at the inner bottom of the mounting frame, a stand column is fixed at the center of the lower end face of the supporting plate, a height adjusting structure is arranged on the lower side of the stand column, and a connecting plate is arranged on the upper side of the supporting plate. Connecting blocks are fixed to the four inner side walls of the mounting frame, first connecting heads are rotationally connected to the connecting blocks, first damping rods are fixed to the ends of the first connecting heads, and second connecting heads are fixed to the ends of the first damping rods. Through the arrangement of the mounting frame, the connecting plate, the first connector, the first damping rod, the second connector, the first spring, the second damping rod and the second spring, comprehensive shock absorption of transverse and longitudinal shock is achieved, the shock absorption effect is improved, and the problems that in the prior art, shock absorption of transverse shock is inconvenient, and the shock absorption effect is poor are solved.

Description

Technical Field

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

[0002] Tunnels are the focus and key projects of highway and railway construction. With the development of railway construction and the advancement of science and technology, tunnel excavation methods have developed rapidly. The more commonly used excavation methods are drilling and blasting, shield method and tunnel boring machine method. Since the drilling and blasting method has strong adaptability to geological conditions and low excavation cost, it is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels. Therefore, the drilling and blasting method is still a commonly used tunnel excavation method at home and abroad. The construction process of tunnel blasting usually generates huge energy, which requires the use of shock-absorbing devices for shock absorption.

[0003] After searching, in the prior art, the patent application number is CN202221332066.7. A tunnel blasting construction shock-absorbing device includes a base, a threaded cylinder and a shock-absorbing cylinder. A vertically arranged threaded cylinder is fixedly connected above the base, and a one-way threaded rod is threadedly connected to the inner thread of the threaded cylinder. The top of the one-way threaded rod extends out of the threaded cylinder and is fixedly connected to the bottom of the shock-absorbing cylinder. A toggle block is fixed on the one-way threaded rod. The shock-absorbing cylinder includes a buffer rod, a first spring, a movable block and a second spring arranged in the shock-absorbing cylinder. The bottom end of the buffer rod is fixedly connected to the movable block, and the outer sleeve of the buffer rod is equipped with a first spring. The two ends of the first spring are supported between the movable block and the top of the shock-absorbing cylinder, the bottom end of the movable block is fixedly connected to the second spring, and the top end of the buffer rod is hinged with a mounting seat; but the following defects still exist:

[0004] (1) The existing technology can reduce the longitudinal vibration, but it is inconvenient to reduce the lateral vibration, the vibration reduction is not comprehensive, and the longitudinal vibration reduction effect is poor;

[0005] (2) It is inconvenient to adjust the inclination angle of the buffer pad in the prior art, and the adaptability is not strong, which reduces the shock absorption effect.

[0006] Therefore, we make improvements to this and propose a shock-absorbing device for tunnel blasting construction. Utility Model Content

[0007] The utility model aims to solve the existing problems of inconvenience in damping horizontal vibration, poor longitudinal damping effect and inconvenience in adjusting the inclination angle of the buffer pad.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] Tunnel blasting construction shock absorption device is used to improve the above problems.

[0010] The specific structure of the utility model is as follows:

[0011] It includes an installation frame. A support plate is fixedly arranged at the inner bottom of the installation frame. A column is fixedly arranged at the center of the lower end face of the support plate. A height adjustment structure is arranged below the column. A connecting plate is arranged above the support plate. Connecting blocks are fixedly arranged on the four inner side walls of the installation frame. First connecting heads are rotatably connected to the connecting blocks. A first damping rod is fixedly arranged at the end of the first connecting head. A second connecting head is fixedly arranged at the end of the first damping rod, and the second connecting head is rotatably connected to the connecting plate. A first spring is sleeved on the first damping rod, and the two ends of the first spring are respectively fixedly connected to the first connecting head and the second connecting head. Three second damping rods are evenly and fixedly connected to the upper end face of the connecting plate. The tops of the three second damping rods are fixedly connected to an adapter plate. Second springs are sleeved on the second damping rods, and the upper and lower ends of the second springs are respectively fixedly connected to the adapter plate and the connecting plate. A movable rod is fixedly arranged on the upper end face of the adapter plate. A rotating shaft is rotatably connected to the top of the movable rod. A mounting seat is fixedly connected to the rotating shaft. An adjustment structure is arranged on the adapter plate. A buffer pad is fixedly connected to the top of the mounting seat.

[0012] As a preferred technical solution of the utility model, the height adjustment structure includes a bottom plate arranged below the column. A hollow vertical pipe is fixedly connected to the center of the upper end face of the bottom plate. A motor is fixedly connected to the inner bottom wall of the vertical pipe. A threaded rod is fixedly connected to the driving end of the motor, and the top of the threaded rod is rotatably connected to the inner top wall of the vertical pipe. An adjustment block is threadedly connected to the threaded rod. Two adjustment rods are symmetrically and fixedly connected to the upper end face of the adjustment block. The tops of the two adjustment rods both penetrate through the upper end face of the vertical pipe and are fixedly connected to a moving plate, and the moving plate is fixedly connected to the column.

[0013] As a preferred technical solution of the utility model, a group of fixing blocks are evenly and fixedly connected to the outer peripheral side wall of the bottom of the vertical pipe. First movable sleeves are rotatably connected to the fixing blocks. A support rod is fixedly connected to the lower end of the first movable sleeve. A second movable sleeve is fixedly connected to the bottom end of the support rod, and a fixed seat is rotatably connected to the second movable sleeve.

[0014] As a preferred technical solution of the utility model, the adjustment structure includes a gear fixed to the rotating shaft. A slide rail is fixedly connected to the upper end face of the adapter plate. A slide bar is slidably connected to the slide rail. A rack meshing with the gear is fixedly connected to the upper end face of the slide bar. An installation piece is fixedly connected to the upper end face of the adapter plate. A cylinder is installed on the installation piece. A connecting piece is fixedly connected to the driving end of the cylinder, and the inner end of the connecting piece is fixedly connected to the rack.

[0015] As a preferred technical solution of the present utility model, three assembly blocks are uniformly and fixedly connected to the upper end surface of the connecting plate. Sliders are slidably connected in all three assembly blocks. Third springs are fixedly connected in all three assembly blocks, and the inner ends of the third springs are fixedly connected to the sliders. Connecting rods are rotatably connected to both ends of the sliders. The top ends of the connecting rods are rotatably connected to connecting blocks, and the connecting blocks are fixedly connected to the connecting plate.

[0016] As a preferred technical solution of the present utility model, the upper end surface of the support plate is in contact with the lower end surface of the connecting plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] In the solution of the present utility model:

[0019] 1. By providing the mounting frame, connecting plate, first connection head, first damping rod, second connection head, first spring, second damping rod and second spring, comprehensive shock absorption for lateral and longitudinal vibrations is achieved, improving the shock absorption effect and solving the problems in the prior art of inconvenient shock absorption for lateral vibrations and poor shock absorption effect;

[0020] 2. By providing the adjustment structure and height adjustment structure, automatic adjustment of the support height is achieved, and it is also convenient to automatically adjust the inclination angle of the buffer pad, facilitating adaptation to different tunnels with strong flexibility, and solving the problem in the prior art of inconvenient adjustment of the inclination angle of the buffer pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the tunnel blasting construction shock absorption device provided by the present utility model;

[0022] Figure 2 is the internal structural schematic diagram of the tunnel blasting construction shock absorption device provided by the present utility model;

[0023] Figure 3 is the front view structural schematic diagram of the tunnel blasting construction shock absorption device provided by the present utility model;

[0024] Figure 4 is the structural schematic diagram of the mounting frame and its connecting components of the tunnel blasting construction shock absorption device provided by the present utility model;

[0025] Figure 5 is the adjustment structure schematic diagram of the tunnel blasting construction shock absorption device provided by the present utility model;

[0026] Figure 6 provided by the present utility model Figure 4 is the enlarged view at A in

[0027] The labels in the figure are:

[0028] 1. Installation frame; 2. Support plate; 3. Column; 4. Height adjustment structure; 401. Bottom plate; 402. Vertical pipe; 403. Motor; 404. Threaded rod; 405. Adjusting block; 406. Adjusting rod; 407. Moving plate; 408. Fixed block; 409. First movable sleeve; 4010. Support rod; 4011. Second movable sleeve; 4012. Fixed seat; 5. Connecting plate; 6. Connecting block; 7. First connecting head; 8. First damping rod; 9. Second connecting head; 10. First spring; 11. Second damping rod; 12. Connecting plate; 13. Second spring; 14. Movable rod; 15. Rotating shaft; 16. Mounting seat; 17. Adjustment structure; 1701. Gear; 1702. Slide rail; 1703. Slide bar; 1704. Rack; 1705. Mounting piece; 1706. Cylinder; 1707. Connecting piece; 18. Buffer pad; 19. Assembly block; 20. Slide block; 21. Third spring; 22. Connecting rod; 23. Connecting block. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.

[0030] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6As shown in the figure, this embodiment proposes a shock-absorbing device for tunnel blasting construction, which includes an installation frame 1. A support plate 2 is fixed to the inner bottom of the installation frame 1. A column 3 is fixed at the center of the lower end face of the support plate 2. A height-adjusting structure 4 is provided below the column 3, which can automatically adjust the height, with a higher degree of automation and improved installation efficiency. A connecting plate 5 is provided above the support plate 2. Connecting blocks 6 are fixed on the four inner side walls of the installation frame 1. First connecting heads 7 are rotatably connected to the connecting blocks 6. A first damping rod 8 is fixed to the end of the first connecting head 7. A second connecting head 9 is fixed to the end of the first damping rod 8, and the second connecting head 9 is rotatably connected to the connecting plate 5. A first spring 10 is sleeved on the first damping rod 8, and both ends of the first spring 10 are fixedly connected to the first connecting head 7 and the second connecting head 9 respectively, which is convenient for damping the vibration in the horizontal direction and improving the damping effect. Three second damping rods 11 are evenly and fixedly connected to the upper end face of the connecting plate 5. The tops of the three second damping rods 11 are fixedly connected to a connecting plate 12. Second springs 13 are sleeved on the second damping rods 11, and the upper and lower ends of the second springs 13 are fixedly connected to the connecting plate 12 and the connecting plate 5 respectively, which is convenient for damping the longitudinal vibration and improving the damping effect. A movable rod 14 is fixed to the upper end face of the connecting plate 12. The top of the movable rod 14 is rotatably connected to a rotating shaft 15. A mounting seat 16 is fixedly connected to the rotating shaft 15. An adjusting structure 17 is provided on the connecting plate 12, which is convenient for adjusting the inclination angle of the mounting seat 16, with higher flexibility and automation degree. A buffer pad 18 is fixedly connected to the top of the mounting seat 16.

[0031] As Figure 1 , Figure 2 and Figure 3 shown, as a preferred embodiment, on the basis of the above method, further, the height-adjusting structure 4 includes a bottom plate 401 provided below the column 3. A hollow vertical pipe 402 is fixedly connected to the center of the upper end face of the bottom plate 401. A motor 403 is fixedly connected to the inner bottom wall of the vertical pipe 402. A threaded rod 404 is fixedly connected to the driving end of the motor 403, and the top of the threaded rod 404 is rotatably connected to the inner top wall of the vertical pipe 402. An adjusting block 405 is threadedly connected to the threaded rod 404. Two adjusting rods 406 are symmetrically and fixedly connected to the upper end face of the adjusting block 405. The tops of the two adjusting rods 406 both penetrate through the upper end face of the vertical pipe 402 and are fixedly connected to a moving plate 407, and the moving plate 407 is fixedly connected to the column 3; by rotating the threaded rod 404 through the motor 403, the rotation of the threaded rod 404 causes the adjusting block 405 to move upward, so that the adjusting rods 406, the moving plate 407 and the column 3 move upward, which is convenient for automatically adjusting the height.

[0032] As Figure 1 , Figure 2 and Figure 3As shown, as a preferred embodiment, on the basis of the above method, further, a set of fixing blocks 408 are uniformly and fixedly connected to the outer peripheral side wall of the bottom of the riser pipe 402. A first movable sleeve 409 is rotatably connected to each of the fixing blocks 408. A support rod 4010 is fixedly connected to the lower end of the first movable sleeve 409. A second movable sleeve 4011 is fixedly connected to the bottom end of the support rod 4010. A fixed seat 4012 is rotatably connected inside the second movable sleeve 4011; the riser pipe 402 is conveniently supported by the support rod 4010 and the fixed seat 4012, improving the stability of fixation.

[0033] As Figure 2 and Figure 5 shown, as a preferred embodiment, on the basis of the above method, further, the adjusting structure 17 includes a gear 1701 fixed on the rotating shaft 15. A slide rail 1702 is fixedly connected to the upper end surface of the connecting plate 12. A slide bar 1703 is slidably connected inside the slide rail 1702. A rack 1704 meshing with the gear 1701 is fixedly connected to the upper end surface of the slide bar 1703. An installation piece 1705 is fixedly connected to the upper end surface of the connecting plate 12. A cylinder 1706 is installed on the installation piece 1705. A connecting piece 1707 is fixedly connected to the driving end of the cylinder 1706, and the inner end of the connecting piece 1707 is fixedly connected to the rack 1704; the connecting piece 1707 is moved by the cylinder 1706, thereby driving the rack 1704 to move, so that the gear 1701 and the rotating shaft 15 rotate, and then the mounting seat 16 rotates, facilitating the adjustment of the inclination angle of the buffer pad 18 and facilitating adaptation to different tunnels.

[0034] As Figure 1 , Figure 4 and Figure 6 shown, as a preferred embodiment, on the basis of the above method, further, three assembly blocks 19 are uniformly and fixedly connected to the upper end surface of the connecting plate 5. Sliders 20 are slidably connected inside the three assembly blocks 19. Third springs 21 are fixedly connected inside the three assembly blocks 19, and the inner ends of the third springs 21 are fixedly connected to the sliders 20. Connecting rods 22 are rotatably connected to both ends of the sliders 20. The top ends of the connecting rods 22 are rotatably connected to a connecting block 23, and the connecting block 23 is fixedly connected to the connecting plate 12; the connecting rods 22 are moved by the downward movement of the connecting plate 12, thereby causing the sliders 20 to slide and compress the third springs 21, thereby performing secondary shock absorption in the longitudinal direction and improving the shock absorption effect.

[0035] As Figure 2 shown, as a preferred embodiment, on the basis of the above method, further, the upper end surface of the support plate 2 is in contact with the lower end surface of the connecting plate 5; facilitating the support of the connecting plate 5 and improving stability.

[0036] Specifically, when the shock-absorbing device for tunnel blasting construction is in operation / use: First, fix the bottom plate 401, then rotate the support rod 4010 to an appropriate angle, and then fix the fixing seat 4012. Then, drive the cylinder 1706 to move the connecting piece 1707, thereby driving the rack 1704 to move, so that the gear 1701 and the rotating shaft 15 rotate, and then the mounting seat 16 and the buffer pad 18 rotate to adjust to an appropriate inclination angle. Start the motor 403 to rotate the threaded rod 404. The rotation of the threaded rod 404 causes the adjusting block 405 to move upward, so that the adjusting rod 406, the moving plate 407 and the column 3 move upward, and then the buffer pad 18 moves upward to be in close contact with the inside of the tunnel. When shock-absorbing, the second damping rod 11 and the second spring 13 perform a primary shock-absorption on the longitudinal vibration. The downward movement of the connecting plate 12 causes the connecting rod 22 to move, and then the slider 20 slides to squeeze the third spring 21 to perform a secondary shock-absorption on the longitudinal direction, improving the shock-absorbing effect. The first damping rod 8 and the first spring 10 can shock-absorb the transverse vibration, improving the comprehensiveness and effect of shock-absorption.

[0037] All the technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A tunnel blasting construction shock absorption device, comprising a mounting frame (1), characterized in that: A support plate (2) is fixed to the inner bottom of the installation frame (1), a column (3) is fixed at the center of the lower end surface of the support plate (2), a height adjustment structure (4) is provided on the lower side of the column (3), a connecting plate (5) is provided on the upper side of the support plate (2), connecting blocks (6) are fixed to the four inner side walls of the installation frame (1), a first connecting head (7) is rotatably connected to the connecting blocks (6), a first damping rod (8) is fixed to the end of the first damping rod (7), a second connecting head (9) is fixed to the end of the first damping rod (8), and the second connecting head (9) is rotatably connected to the connecting plate (5), a first spring (10) is sleeved on the first damping rod (8), and the two ends of the first spring (10) are respectively connected to the first connecting head (7) and the second connecting head (9) is rotatably connected to the connecting plate (5), ) is fixedly connected to a second connecting head (9), the upper end surface of the connecting plate (5) is evenly and fixedly connected with three second damping rods (11), the top ends of the three second damping rods (11) are fixedly connected with a connecting plate (12), the second damping rods (11) are sleeved with a second spring (13), the upper and lower ends of the second spring (13) are respectively fixedly connected to the connecting plate (12) and the connecting plate (5), the upper end surface of the connecting plate (12) is fixedly connected with a movable rod (14), the top end of the movable rod (14) is rotatably connected with a rotating shaft (15), the rotating shaft (15) is fixedly connected with a mounting seat (16), the connecting plate (12) is provided with an adjustment structure (17), and the top end of the mounting seat (16) is fixedly connected with a buffer pad (18).

2. A tunnel blasting construction shock absorption device according to claim 1, characterized in that: The height adjustment structure (4) comprises a bottom plate (401) arranged below the column (3); a hollow vertical pipe (402) is fixedly connected to the center of the upper end surface of the bottom plate (401); a motor (403) is fixedly connected to the inner bottom wall of the vertical pipe (402); a threaded rod (404) is fixedly connected to the driving end of the motor (403); the top end of the threaded rod (404) is rotatably connected to the inner top wall of the vertical pipe (402); an adjustment block (405) is connected to the upper thread of the threaded rod (404); the upper end surface of the adjustment block (405) is symmetrical and fixedly connected to two adjustment rods (406); the top ends of the two adjustment rods (406) both penetrate the upper end surface of the vertical pipe (402) and are fixedly connected to a movable plate (407); and the movable plate (407) is fixedly connected to the column (3).

3. A tunnel blasting construction shock absorbing device according to claim 2, characterized in that: A group of fixed blocks (408) are evenly fixedly connected to the outer peripheral side wall of the bottom of the vertical pipe (402), and the fixed blocks (408) are rotatably connected to the first movable sleeves (409), the lower end of the first movable sleeve (409) is fixedly connected to the support rod (4010), the bottom end of the support rod (4010) is fixedly connected to the second movable sleeve (4011), and the second movable sleeve (4011) is rotatably connected to the inside thereof.

4. A tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The adjustment structure (17) comprises a gear (1701) fixed on the rotating shaft (15); the upper end surface of the connecting plate (12) is fixedly connected to a slide rail (1702); a slide bar (1703) is slidably connected inside the slide rail (1702); the upper end surface of the slide bar (1703) is fixedly connected to a rack (1704) meshingly connected to the gear (1701); the upper end surface of the connecting plate (12) is fixedly connected to a mounting plate (1705); a cylinder (1706) is mounted on the mounting plate (1705); a driving end of the cylinder (1706) is fixedly connected to a connecting plate (1707); and the inner end of the connecting plate (1707) is fixedly connected to the rack (1704).

5. The tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The upper end surface of the connecting plate (5) is evenly and fixedly connected with three assembly blocks (19), each of the three assembly blocks (19) is slidably connected with a slider (20), each of the three assembly blocks (19) is fixedly connected with a third spring (21), and the inner end of the third spring (21) is fixedly connected to the slider (20), both ends of the slider (20) are rotatably connected with a connecting rod (22), the top end of the connecting rod (22) is rotatably connected with a connecting block (23), and the connecting block (23) is fixedly connected to the connecting plate (12).

6. A tunnel blasting construction shock absorbing device according to claim 1, characterized in that: The upper end surface of the support plate (2) is in contact with the lower end surface of the connecting plate (5).

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