Tunnel lining radar detection device

Abstract

The utility model relates to the technical field of tunnel detection, and discloses a tunnel lining radar detection device which comprises a movable support, pulleys used for being connected with a sliding rail are fixedly installed at the bottom of the movable support, a supporting plate seat is fixedly installed at the bottom of the movable support, and a center column is fixedly installed at the top of the supporting plate seat. The tunnel lining radar detection device is simple and easy to build, low in manufacturing cost, high in working efficiency, easy to master and quick to operate, saves time and labor, greatly reduces the labor cost, saves time, liberates a traditional single-side frame, is better suitable for existing line tunnel detection, can be suitable for tunnel detection work of different heights by adjusting the length of a prying lever, and improves the detection efficiency. And by adjusting the supporting angle of the three-dimensional universal joint, the radar detection device can be kept to be attached to the inner wall of the tunnel when different radian areas of the top of the tunnel are detected, so that the detection accuracy is improved, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to the field of tunnel detection technology, specifically a tunnel lining radar detection device. Background Technology

[0002] After tunnel construction is completed, the inner walls of the tunnel need to be inspected. This requires using a ground-penetrating radar system positioned close to the tunnel walls. Ground-penetrating radar emits high-frequency electromagnetic waves (typically 100-900MHz) and receives reflected signals, analyzing the reflection characteristics of different media interfaces to achieve non-destructive detection of the interior and back of the lining structure. When electromagnetic waves encounter different media such as concrete, cavities, or reinforcing steel, the reflected waveforms and amplitudes show significant differences, forming identifiable radar images. During inspection, the radar detection device needs to be raised to the top of the tunnel's inner wall and continuously moved during the inspection process. Currently, after the high-speed railway rails are laid, the overhead contact lines inside the tunnel have been installed, making it impossible for traditional inspection vehicles to move. Furthermore, the inspection vehicle's boom interferes with the overhead contact lines, preventing operation. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a tunnel lining radar detection device, which solves the problem of inconvenient tunnel radar detection operations.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tunnel lining radar detection device, comprising a movable support, a pulley for connecting to a slide rail fixedly installed at the bottom of the movable support, a support plate fixedly installed at the bottom of the movable support, a central column fixedly installed at the top of the support plate, a support frame fixedly installed at the top of the central column, a pry bar rotatably installed on the inner side of the support frame via a pivot pin, a radar detection device movably installed at the end of the pry bar via a three-dimensional universal joint, and a rope fixedly connected to the end of the pry bar away from the radar detection device.

[0007] Preferably, the central column includes a bottom support steel pipe, a rotating bearing seat, and a top support steel pipe. The bottom support steel pipe is fixedly installed on the top of the support plate seat, the rotating bearing seat is fixedly installed on the top of the rotating bearing seat, the top support steel pipe is rotatably installed on the top of the bottom support steel pipe via the rotating bearing seat, and the support frame is fixedly installed on the top of the top support steel pipe.

[0008] Preferably, a support side pipe is fixedly installed on the outer wall of the bottom support steel pipe, the bottom end of the support side pipe is fixedly installed with the top of the movable support, the length of the support side pipe is 1.8m, and the diameter of the support side pipe is 3cm.

[0009] Preferably, the length of both the bottom support steel pipe and the top support steel pipe is 2m, and the diameter of both the bottom support steel pipe and the top support steel pipe is 12cm.

[0010] Preferably, the pulley is a pulley with a self-locking function.

[0011] Preferably, the lever is composed of three square steel bars, which are connected by bolts after being drilled. The lengths of the three square steel bars are 4.5m, 4.5m and 2m respectively.

[0012] Preferably, the three square steel bars of the lever have multiple screw holes on their surfaces.

[0013] Preferably, climbing poles are fixedly welded to the surfaces of the bottom support steel pipe and the top support steel pipe.

[0014] Preferably, the three-dimensional universal joint includes a fixed blade, a deflection plate, a first deflection blade, a first positioning pin, a first deflection opening, a first fixing bolt, a second deflection blade, a support blade, a second deflection opening, a second fixing bolt, a second positioning pin, and a mounting plate base. The deflection plate is fixedly installed at the end of the movable support. The first deflection blade is fixedly installed on the surface of the deflection plate. The first deflection blade is rotatably installed on the fixed blade via the first positioning pin. The first deflection opening is opened on the surface of the fixed blade. The first fixing bolt passes through the first deflection opening to fix the installation angle of the first deflection blade and the fixed blade. The second deflection blade is fixedly installed on the side of the deflection plate away from the first deflection blade. The support blade is fixedly connected to the mounting plate base. The radar detection device is fixedly installed on the surface of the mounting plate base via bolts. The support blade is rotatably connected to the second deflection blade via the second positioning pin. The second deflection opening is opened on the surface of the second deflection blade. The second fixing bolt passes through the second deflection opening to fix the installation angle of the second deflection blade and the support blade.

[0015] Preferably, both the first deflection opening and the second deflection opening are arc-shaped notches, with the center of the first deflection opening located on the axis of the first positioning pin and the center of the second deflection opening located on the axis of the second positioning pin.

[0016] Compared with the prior art, the present invention provides a radar detection device for tunnel lining, which has the following advantages:

[0017] 1. This tunnel lining radar detection device is simple to assemble, low in cost, highly efficient, easy to learn and quick to operate, and saves time and labor, greatly reducing labor costs and saving time. It also eliminates the need for traditional single-sided frames and is better suited for the detection of existing railway tunnels.

[0018] 2. This tunnel lining radar detection device can be adapted to tunnel detection work at different heights by adjusting the length of the pry bar. Furthermore, by adjusting the support angle of the three-dimensional universal joint, the radar detection device can maintain close contact with the inner wall of the tunnel when detecting different curvature areas at the top of the tunnel, thereby improving the accuracy of the detection and expanding its applicability. Attached Figure Description

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

[0020] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0022] The components are as follows: 1. Movable support; 11. Pulley; 2. Support plate seat; 3. Bottom support steel pipe; 31. Support side pipe; 4. Rotary bearing seat; 5. Top support steel pipe; 6. Support frame; 7. Pry bar; 8. Radar detection device; 81. Fixed blade; 82. Deflection plate; 83. First deflection blade; 84. First positioning pin; 85. First deflection opening; 86. First fixing bolt; 87. Second deflection blade; 88. Support blade; 89. Second deflection opening; 90. Second fixing bolt; 91. Second positioning pin; 92. Mounting plate seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3This utility model provides a tunnel lining radar detection device, including a movable support 1. The bottom of the movable support 1 is fixedly installed with a pulley 11 for connecting with a slide rail. The bottom of the movable support 1 is fixedly installed with a support plate 2. The top of the support plate 2 is fixedly installed with a central column. The top of the central column is fixedly installed with a support frame 6. A pry bar 7 is rotatably installed on the inner side of the support frame 6 through a pivot pin. The end of the pry bar 7 is movably installed with a radar detection device 8 through a three-dimensional universal joint. A rope is fixedly connected to the end of the pry bar 7 away from the radar detection device 8.

[0025] Furthermore, the central column includes a bottom support steel pipe 3, a rotating bearing seat 4, and a top support steel pipe 5. The bottom support steel pipe 3 is fixedly installed on the top of the support plate seat 2. The rotating bearing seat 4 is fixedly installed on the top of the rotating bearing seat 4. The top support steel pipe 5 is rotatably installed on the top of the bottom support steel pipe 3 via the rotating bearing seat 4. The support frame 6 is fixedly installed on the top of the top support steel pipe 5. The top support steel pipe 5 can rotate along the top of the bottom support steel pipe 3 under the support of the rotating bearing seat 4, thereby adjusting the detection orientation.

[0026] Furthermore, a support side pipe 31 is fixedly installed on the outer wall of the bottom support steel pipe 3. The bottom end of the support side pipe 31 is fixedly installed on the top of the movable support 1. The length of the support side pipe 31 is 1.8m and the diameter of the support side pipe 31 is 3cm. The support side pipe 31 supports the outside of the bottom support steel pipe 3, thereby improving the stability of the bottom support steel pipe 3.

[0027] Furthermore, the length of both the bottom support steel pipe 3 and the top support steel pipe 5 is 2m, and the diameter of both the bottom support steel pipe 3 and the top support steel pipe 5 is 12cm.

[0028] Furthermore, pulley 11 is a pulley with a self-locking function. During debugging, pulley 11 can be locked to facilitate the debugging process.

[0029] Furthermore, the lever 7 is composed of three square steel bars, which are connected by bolts after being drilled. The lengths of the three square steel bars are 4.5m, 4.5m and 2m respectively.

[0030] Furthermore, the three square steel bars of the pry bar 7 have multiple screw holes on their surfaces. By adjusting the overlap length of the three square steel bars, the overall length of the pry bar 7 can be adjusted. After adjusting to the required length, the pry bar 7 is fixedly connected by bolts passing through the overlap screw holes.

[0031] Furthermore, climbing poles are fixedly welded to the surfaces of the bottom support steel pipe 3 and the top support steel pipe 5, which allows workers to easily climb to the top of the top support steel pipe 5 to assemble the equipment.

[0032] Furthermore, the three-dimensional universal joint includes a fixed blade 81, a deflection plate 82, a first deflection blade 83, a first positioning pin 84, a first deflection opening 85, a first fixing bolt 86, a second deflection blade 87, a support blade 88, a second deflection opening 89, a second fixing bolt 90, a second positioning pin 91, and a mounting plate base 92. The deflection plate 82 is fixedly installed at the end of the movable support 1. The first deflection blade 83 is fixedly installed on the surface of the deflection plate 82. The first deflection blade 83 is rotatably installed on the fixed blade 81 via the first positioning pin 84. The first deflection opening 85 is formed on the surface of the fixed blade 81. The first fixing bolt 86... The installation angle of the first deflection blade 83 and the fixed blade 81 is fixed by passing through the first deflection opening 85. The second deflection blade 87 is fixedly installed on the side of the deflection plate 82 away from the first deflection blade 83. The support blade 88 is fixedly connected to the mounting plate base 92. The radar detection device 8 is fixedly installed to the surface of the mounting plate base 92 by bolts. The support blade 88 is rotatably connected to the second deflection blade 87 by the second positioning pin 91. The second deflection opening 89 is opened on the surface of the second deflection blade 87. The second fixing bolt 90 passes through the second deflection opening 89 to fix the installation angle of the second deflection blade 87 and the support blade 88.

[0033] Furthermore, both the first deflection opening 85 and the second deflection opening 89 are arc-shaped notches. The center of the first deflection opening 85 is located on the axis of the first positioning pin 84, and the center of the second deflection opening 89 is located on the axis of the second positioning pin 91. By adjusting the installation angle between the first deflection blade 83 and the fixed blade 81, and the installation angle between the supporting blade 88 and the second deflection blade 87, the support angle of the pry bar 7 on the radar detection device 8 can be controlled. This allows the radar detection device 8 to be closer to the arc-shaped inner wall area of ​​the tunnel that needs to be detected when the tunnel is being inspected, thus improving the accuracy of the inspection.

[0034] In use, the movable support 1 is moved to the top of the track inside the tunnel, so that the pulley 11 is engaged with the top of the track. Then, the end of the lever 7 away from the radar detection device 8 is pulled downward by the rope. The lever 7 rotates along the support point of the support frame 6, so that the left end of the lever 7 tilts upward, thereby lifting the radar detection device 8 upward and making the radar detection device 8 fit against the inner wall of the tunnel. The fit between the radar detection device 8 and the inner wall of the tunnel is observed. By repeatedly adjusting the support angle of the three-dimensional universal joint by lowering the radar detection device 8, the radar detection device 8 can be fully fitted against the inner wall of the tunnel. Then, the end of the rope away from the lever 7 is connected and fixed to the movable support 1. During use, the stability of the equipment can be increased by having the staff stand on the movable support 1. Then, by pushing the movable support 1 along the track, the radar detection device 8 can be driven to move along the inner wall of the track to achieve the detection function.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radar detection device for tunnel lining, comprising a movable support (1), characterized in that: The bottom of the movable support (1) is fixedly equipped with a pulley (11) for connecting with the slide rail. The bottom of the movable support (1) is fixedly equipped with a support plate seat (2). The top of the support plate seat (2) is fixedly equipped with a central column. The top of the central column is fixedly equipped with a support frame (6). The inner side of the support frame (6) is rotatably equipped with a pry bar (7) through a pivot pin. The end of the pry bar (7) is movably equipped with a radar detection device (8) through a three-dimensional universal joint. The end of the pry bar (7) away from the radar detection device (8) is fixedly connected with a rope.

2. The tunnel lining radar detection device according to claim 1, characterized in that: The central column includes a bottom support steel pipe (3), a rotating bearing seat (4), and a top support steel pipe (5). The bottom support steel pipe (3) is fixedly installed on the top of the support plate seat (2). The rotating bearing seat (4) is fixedly installed on the top of the rotating bearing seat (4). The top support steel pipe (5) is rotatably installed on the top of the bottom support steel pipe (3) through the rotating bearing seat (4). The support frame (6) is fixedly installed on the top of the top support steel pipe (5).

3. The tunnel lining radar detection device according to claim 2, characterized in that: The outer wall of the bottom support steel pipe (3) is fixedly installed with a support side pipe (31). The bottom end of the support side pipe (31) is fixedly installed with the top of the movable support (1). The length of the support side pipe (31) is 1.8m and the diameter of the support side pipe (31) is 3cm.

4. The tunnel lining radar detection device according to claim 2, characterized in that: The length of the bottom support steel pipe (3) and the top support steel pipe (5) is 2m, and the diameter of the bottom support steel pipe (3) and the top support steel pipe (5) is 12cm.

5. A tunnel lining radar detection device according to claim 1, characterized in that: The pulley (11) is a pulley with a self-locking function.

6. The tunnel lining radar detection device according to claim 1, characterized in that: The lever (7) is composed of three square steel bars, which are connected by bolts after being drilled. The lengths of the three square steel bars are 4.5m, 4.5m and 2m respectively.

7. A tunnel lining radar detection device according to claim 6, characterized in that: The three square steel bars of the lever (7) have multiple screw holes on their surfaces.

8. A tunnel lining radar detection device according to claim 2, characterized in that: Climbing poles are fixedly welded to the surfaces of the bottom support steel pipe (3) and the top support steel pipe (5).

9. A tunnel lining radar detection device according to claim 1, characterized in that: The three-dimensional universal joint includes a fixed blade (81), a deflection plate (82), a first deflection blade (83), a first positioning pin (84), a first deflection opening (85), a first fixing bolt (86), a second deflection blade (87), a support blade (88), a second deflection opening (89), a second fixing bolt (90), a second positioning pin (91), and a mounting plate base (92). The deflection plate (82) is fixedly installed at the end of the movable support (1). The first deflection blade (83) is fixedly installed on the surface of the deflection plate (82). The first deflection blade (83) is rotatably installed on the fixed blade (81) through the first positioning pin (84). The first deflection opening (85) is opened on the surface of the fixed blade (81). The first fixing bolt (86) is fixedly installed on the surface of the fixed blade (81). The installation angle of the first deflection blade (83) and the fixed blade (81) is fixed through the first deflection opening (85). The second deflection blade (87) and the deflection plate (82) are fixedly installed on the side away from the first deflection blade (83). The support blade (88) is fixedly connected to the mounting plate base (92). The radar detection device (8) is fixedly installed to the surface of the mounting plate base (92) by bolts. The support blade (88) is rotatably connected to the second deflection blade (87) by the second positioning pin (91). The second deflection opening (89) is opened on the surface of the second deflection blade (87). The second fixing bolt (90) passes through the second deflection opening (89) to fix the installation angle of the second deflection blade (87) and the support blade (88).

10. A tunnel lining radar detection device according to claim 9, characterized in that: Both the first deflection opening (85) and the second deflection opening (89) are arc-shaped notches. The center of the first deflection opening (85) is located on the axis of the first positioning pin (84), and the center of the second deflection opening (89) is located on the axis of the second positioning pin (91).

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