Tunnel crack measuring device

Abstract

The utility model discloses a tunnel crack measuring device, which relates to the field of tunnel detection and comprises a base, a lifting mechanism is fixedly mounted at the top of the base, a fixing component is fixedly connected to the top of the lifting mechanism, an ultrasonic detector is movably mounted in the fixing component, and the ultrasonic detector is fixedly connected with the base. The lifting mechanism comprises a supporting frame and a first driving motor, and the supporting frame and the first driving motor are both fixedly installed on the top of the base. According to the utility model, the lifting mechanism located on the base is arranged, the ultrasonic detector can be driven to ascend upwards by controlling the lifting mechanism so as to be close to the top end in the tunnel, and the ultrasonic detector can be driven to move back and forth along the top in the tunnel in an arc track by controlling the lifting mechanism; and the top end in the tunnel is detected through the ultrasonic detector, so that workers do not need to climb, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel detection, in particular to a tunnel crack measuring device. Background Art

[0002] At present, the prosperity of today's society is inseparable from the vigorous development of the transportation industry. When constructing transportation routes, obstacles such as mountains or urban buildings are often encountered; tunnel engineering refers to a series of construction work built underground, underwater and in mountains. Tunnels can be divided into three categories according to their locations: mountain tunnels, underwater tunnels and urban tunnels. Tunnel engineering has greatly facilitated the construction of transportation routes and promoted the development of the transportation industry; in the long-term operation of tunnels, they are affected by vehicle vibration, temperature stress and temperature deformation caused by cement hydrothermalization, geological changes, etc., and cracks may appear in the secondary lining of the tunnel, which brings certain safety hazards to the operation of the tunnel. Therefore, it is necessary to inspect the tunnel regularly, detect cracks in time and repair them to reduce safety hazards.

[0003] Existing tunnel crack measuring devices are generally detected by construction supervisors using handheld probes or cameras. For cracks at lower positions in the tunnel, workers can perform detection by standing at the bottom of the tunnel. However, for cracks at the top of the tunnel, it is necessary to build scaffolding in the tunnel or use a lift to lift the supervisor into the air, which is inconvenient to use. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A tunnel crack measuring device comprises a base, a lifting mechanism is fixedly installed on the top of the base, a fixing component is fixedly connected to the top of the lifting mechanism, and an ultrasonic detector is movably installed inside the fixing component.

[0006] A further improvement of the technical solution of the utility model is that the lifting mechanism includes a support frame and a driving motor 1, the support frame and the driving motor 1 are fixedly installed on the top of the base, a threaded rod 1 is rotatably installed inside the support frame, the front side of the output shaft of the driving motor 1 is fixedly connected to a rotating shaft located in the support frame, the bottom of the threaded rod 1 and the outside of the rotating shaft are fixedly installed with meshing transmission bevel gears, the external thread of the threaded rod 1 is threadedly installed with a sliding seat, and the front side of the sliding seat is fixedly connected with a swing mechanism.

[0007] A further improvement of the technical solution of the utility model is that: the swing mechanism includes a connecting frame, a movable frame is rotatably installed inside the connecting frame, a servo motor connected to the movable frame is fixedly installed on the front side of the connecting frame, a threaded rod 2 is rotatably installed inside the servo motor, a driving motor 2 connected to the threaded rod 2 is fixedly installed below the inside of the servo motor, a sliding block is connected to the external thread of the threaded rod 2, the top of the sliding block is fixedly connected to the top of the support rod, and the fixing component is fixedly connected to the top of the support rod.

[0008] A further improvement of the technical solution of the utility model lies in that: the fixing component includes a card frame, positioning blocks are fixedly installed on the front and rear sides of the card frame, a rotating rod is rotatably installed inside the positioning block, external threads are provided on the left and right sides of the outside of the rotating rod, a movable block is connected to the external threads of the external threads, the inner side of the movable block is fixedly connected to a limit block located in the card frame, and the right side of the rotating rod is fixedly connected to a handwheel located outside the card frame.

[0009] A further improvement of the technical solution of the utility model is that: an opening corresponding to the support rod is provided on the top of the movable frame, and the support rod penetrates the top of the movable frame and is located outside the movable frame.

[0010] A further improvement of the technical solution of the utility model is that a reduction box which is respectively connected to the movable frame and the servo motor is arranged on the front side of the connecting frame.

[0011] A further improvement of the technical solution of the utility model is that: the left and right sides of the ultrasonic detector are provided with limiting grooves corresponding to the limiting blocks, and the limiting blocks are movably engaged in the limiting grooves.

[0012] A further improvement of the technical solution of the utility model is that an opening for connecting the ultrasonic detector is arranged on the right side of the card frame.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a tunnel crack measuring device, which is provided with a lifting mechanism located on a base. By controlling the lifting mechanism, the ultrasonic detector can be driven to rise upward so that the ultrasonic detector is close to the top of the tunnel, and by controlling the lifting mechanism, the ultrasonic detector can be driven to reciprocate along the top of the tunnel in an arc trajectory. The top of the tunnel is detected by the ultrasonic detector, so that the staff does not need to climb high, which improves the convenience of use.

[0015] 2. The utility model provides a tunnel crack measuring device, which fixes the ultrasonic detector by setting a fixing component. The ultrasonic detector is used by being mounted in the fixing component. The ultrasonic detector can be disassembled by operating the fixing component, thereby improving the flexibility of disassembly and assembly of the ultrasonic detector and the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a tunnel crack measuring device of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the lifting mechanism of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the swing mechanism of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the limit groove of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the fixing component of the utility model.

[0021] In the figure: 1. base; 2. lifting mechanism; 21. support frame; 22. driving motor 1; 23. threaded rod 1; 24. rotating shaft; 25. transmission bevel gear; 26. sliding seat; 27. swing mechanism; 271. connecting frame; 272. movable frame; 273. servo motor; 274. threaded rod 2; 275. driving motor 2; 276. sliding block; 277. supporting rod; 3. fixing component; 31. card frame; 32. positioning block; 33. rotating rod; 34. external thread; 35. movable block; 36. limit block; 37. hand wheel; 4. ultrasonic detector; 41. limit groove. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below:

[0023] like Figures 1 to 5 As shown, the utility model provides a tunnel crack measuring device, including a base 1, a lifting mechanism 2 is fixedly installed on the top of the base 1, a fixing component 3 is fixedly connected to the top of the lifting mechanism 2, and an ultrasonic detector 4 is movably installed inside the fixing component 3.

[0024] By providing a lifting mechanism 2 located on the base 1, the ultrasonic detector 4 can be driven to rise upward by controlling the lifting mechanism 2 so that the ultrasonic detector 4 is close to the top of the tunnel, and the ultrasonic detector 4 can be driven to reciprocate along the top of the tunnel in an arc trajectory by controlling the lifting mechanism 2. The top of the tunnel is detected by the ultrasonic detector 4, so that the staff does not need to climb high, which improves the convenience of use. At the same time, the ultrasonic detector 4 is fixed by providing a fixing component 3, and the ultrasonic detector 4 is installed in the fixing component 3 for use. The ultrasonic detector 4 can be disassembled by operating the fixing component 3, which improves the flexibility of disassembly and assembly of the ultrasonic detector 4 and the flexibility of use.

[0025] like Figure 2 and Figure 3 As shown, the lifting mechanism 2 includes a support frame 21 and a drive motor 22, and the support frame 21 and the drive motor 22 are fixedly installed on the top of the base 1. A threaded rod 23 is rotatably installed inside the support frame 21, and the front side of the output shaft of the drive motor 22 is fixedly connected to a rotating shaft 24 located in the support frame 21, and the bottom of the threaded rod 23 and the outside of the rotating shaft 24 are fixedly installed with meshing transmission bevel gears 25, and a sliding seat 26 is threadedly installed on the outside of the threaded rod 23, and a swing mechanism 27 is fixedly connected to the front side of the sliding seat 26.

[0026] The swing mechanism 27 includes a connecting frame 271, a movable frame 272 is rotatably installed inside the connecting frame 271, a servo motor 273 connected to the movable frame 272 is fixedly installed on the front side of the connecting frame 271, a threaded rod 274 is rotatably installed inside the servo motor 273, a driving motor 275 connected to the threaded rod 274 is fixedly installed below the inside of the servo motor 273, a sliding block 276 is threadedly connected to the outside of the threaded rod 274, a support rod 277 is fixedly connected to the top of the sliding block 276, and the fixing component 3 is fixedly connected to the top of the support rod 277.

[0027] By controlling the driving motor 1 22 to drive the rotating shaft 24 to rotate, the transmission bevel gear 25 is driven to rotate and the threaded rod 1 23 is driven to rotate. The sliding seat 26 in the support frame 21 is driven by the rotation of the threaded rod 1 23 to drive the swing mechanism 27 to move upward. At the same time, by controlling the driving motor 2 275 to drive the threaded rod 2 274 to rotate, the sliding block 276 drives the support rod 277 to move upward along the threaded rod 274 to drive the ultrasonic detector 4 to rise to approach the top of the tunnel. By controlling the servo motor 273 and cooperating with the reduction box to drive the movable frame 272 to perform arc reciprocating movement, the ultrasonic detector 4 is cooperated to detect the cracks above the tunnel, thereby improving the convenience of use.

[0028] like Figure 5As shown, the fixing assembly 3 includes a card frame 31, and positioning blocks 32 are fixedly installed on the front and rear sides of the card frame 31, a rotating rod 33 is rotatably installed inside the positioning block 32, and external threads 34 are provided on the left and right sides of the outside of the rotating rod 33, and the external threads of the external threads 34 are connected to a movable block 35, and the inner side of the movable block 35 is fixedly connected to a limit block 36 located in the card frame 31, and the right side of the rotating rod 33 is fixedly connected to a handwheel 37 located outside the card frame 31.

[0029] By inserting the ultrasonic detector 4 into the card frame 31 and rotating the hand wheel 37 to drive the rotating rod 33 in the positioning block 32 to rotate, the external threads 34 on both sides of the rotating rod 33 are set to drive the movable block 35 to move inward by rotating the rotating rod 33, and the movable block 35 drives the limit block 36 to move inward so that the limit block 36 is engaged to limit and fix the ultrasonic detector 4, thereby facilitating the disassembly and installation of the ultrasonic detector 4 and improving the flexibility of use.

[0030] like Figure 3 As shown, the top of the movable frame 272 is provided with an opening corresponding to the support rod 277 , and the support rod 277 penetrates the top of the movable frame 272 and is located outside the movable frame 272 .

[0031] The support rod 277 can be driven by the sliding block 276 to move upward along the top of the movable frame 272 so as to raise the height of the ultrasonic detector 4, thereby enabling crack detection at a high place in the tunnel.

[0032] like Figure 3 As shown, a reduction box is provided on the front side of the connection frame 271 to connect the movable frame 272 and the servo motor 273 respectively.

[0033] The torque is increased by setting the reduction box while the moving speed of the movable frame 272 is reduced, thereby ensuring the stability of the detection.

[0034] like Figure 4 As shown, the left and right sides of the ultrasonic detector 4 are provided with limiting grooves 41 corresponding to the limiting blocks 36 , and the limiting blocks 36 are movably engaged in the limiting grooves 41 .

[0035] An opening for connecting the ultrasonic detector 4 is provided on the right side of the card frame 31 .

[0036] By corresponding the limit block 36 with the limit groove 41, the limit block 36 is clamped in the limit groove 41 to limit the ultrasonic detector 4, thereby facilitating its disassembly. At the same time, the side opening of the clamp frame 31 is arranged to facilitate the wiring and use of the ultrasonic detector 4.

[0037] The working principle of the tunnel crack measuring device is described in detail below.

[0038] like Figures 1 to 5As shown, the ultrasonic detector 4 is inserted into the card frame 31 and the rotating rod 33 in the positioning block 32 is driven to rotate by rotating the hand wheel 37. The external threads 34 on both sides of the rotating rod 33 are set to rotate the rotating rod 33 to drive the movable block 35 to move inward, and the movable block 35 drives the limit block 36 to move inward so that the limit block 36 is inserted into the limit groove 41 to limit and fix the ultrasonic detector 4. The rotating shaft 24 is driven to rotate by controlling the driving motor 1 22, thereby driving the transmission bevel gear 25 to rotate and drive the threaded rod 1 23 to rotate. The sliding seat 26 in the support frame 21 is driven by the rotation of the threaded rod 1 23 to drive the swing mechanism 27 to move upward. At the same time, the driving motor 2 275 is controlled to drive the threaded rod 274 to rotate, and the sliding block 276 drives the support rod 277 to move upward along the threaded rod 274 to drive the ultrasonic detector 4 to rise to approach the top of the tunnel. The servo motor 273 is controlled to cooperate with the reduction box to drive the movable frame 272 to perform arc reciprocating movement to cooperate with the ultrasonic detector 4 to detect the upper cracks in the tunnel.

[0039] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A tunnel crack measuring device, comprising a base (1), characterized in that: A lifting mechanism (2) is fixedly installed on the top of the base (1), a fixing assembly (3) is fixedly connected to the top of the lifting mechanism (2), an ultrasonic detector (4) is movably installed inside the fixing assembly (3), the lifting mechanism (2) comprises a support frame (21) and a drive motor (22), the support frame (21) and the drive motor (22) are both fixedly installed on the top of the base (1), a threaded rod (23) is rotatably installed inside the support frame (21), a rotating shaft (24) located inside the support frame (21) is fixedly connected to the front side of the output shaft of the drive motor (22), and a meshing transmission bevel gear (25) is fixedly installed on the bottom of the threaded rod (23) and the outside of the rotating shaft (24). ), the external thread of the threaded rod (23) is installed with a sliding seat (26), the front side of the sliding seat (26) is fixedly connected with a swing mechanism (27), the fixed component (3) includes a card frame (31), the front and rear sides of the card frame (31) are fixedly installed with positioning blocks (32), the interior of the positioning block (32) is rotatably installed with a rotating rod (33), the left and right sides of the outside of the rotating rod (33) are provided with external threads (34), the external threads of the external threads (34) are connected with a movable block (35), the inner side of the movable block (35) is fixedly connected with a limit block (36) located in the card frame (31), and the right side of the rotating rod (33) is fixedly connected with a hand wheel (37) located outside the card frame (31).

2. A tunnel crack measuring device according to claim 1, characterized in that: The swing mechanism (27) comprises a connecting frame (271), a movable frame (272) is rotatably mounted inside the connecting frame (271), a servo motor (273) connected to the movable frame (272) is fixedly mounted on the front side of the connecting frame (271), a threaded rod (274) is rotatably mounted inside the servo motor (273), a driving motor (275) connected to the threaded rod (274) is fixedly mounted below the inside of the servo motor (273), a sliding block (276) is threadedly connected to the outside of the threaded rod (274), a support rod (277) is fixedly connected to the top of the sliding block (276), and the fixing component (3) is fixedly connected to the top of the support rod (277).

3. A tunnel crack measuring device according to claim 2, characterized in that: The top of the movable frame (272) is provided with an opening corresponding to the support rod (277), and the support rod (277) penetrates the top of the movable frame (272) and is located outside the movable frame (272).

4. A tunnel crack measuring device according to claim 2, characterized in that: A reduction box is provided on the front side of the connection frame (271) and is respectively connected to the movable frame (272) and the servo motor (273).

5. A tunnel crack measuring device according to claim 1, characterized in that: The ultrasonic detector (4) is provided with limit grooves (41) corresponding to the limit blocks (36) on the left and right sides, and the limit blocks (36) are movably engaged in the limit grooves (41).

6. A tunnel crack measuring device according to claim 1, characterized in that: An opening for connecting the ultrasonic detector (4) is provided on the right side of the card frame (31).

Images