Geological radar antenna support for tunnel detection

Abstract

The utility model discloses a geological radar antenna support for tunnel detection, which comprises a mounting table, the mounting table is fixed at the top of an extension frame, the extension frame is inserted into a lifting frame, the lifting frame is inserted into a rotating frame, the rotating frame is rotatably connected with a top frame through trunnions on two sides, the top frame is provided with four supporting legs, the supporting legs are of telescopic structures and are arranged on a base, and the base is provided with a base. And universal wheels are arranged below the base. The geological radar antenna can be conveniently driven to lift and incline, geological detection work can be conveniently carried out on the top and the side wall in a tunnel, the structure is simple, operation is stable and safe, operation is convenient and fast, the device can be suitable for geological detection work of tunnels of different types and different sizes, and the application range is wide. The device not only improves the convenience of the detection work, but also reduces the risk of accidents caused by manual operation, improves the safety of the detection work, saves time, labor and cost, and is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of ground-penetrating radar technology, and in particular to a ground-penetrating radar antenna support for tunnel detection. Background Technology

[0002] The ground-penetrating radar (GPR) antenna is a key component of a GPR system. It transmits and receives high-frequency electromagnetic waves to detect the distribution and properties of underground objects. The working principle of a GPR antenna is based on the transmission and reception of electromagnetic waves. The transmitting part consists of a high-frequency pulse wave transmitter and an antenna that radiates electromagnetic waves outwards. Electromagnetic waves are transmitted underground through the transmitting antenna. These waves are reflected when they encounter interfaces between different media and are received by a receiving antenna positioned at a fixed location. The received signals are processed to determine the location and properties of underground objects. Currently, some tunnels are inspected using GPR. During inspection, lifting equipment is often used to push workers to a high position inside the tunnel. Workers then hold the GPR antenna and inspect a predetermined location on the tunnel ceiling. This method is time-consuming, labor-intensive, and highly dangerous, with a high risk of accidents and poor safety. Furthermore, this method requires the use of lifting equipment, resulting in high inspection costs. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a ground-penetrating radar antenna support for tunnel inspection, which can directly deliver the ground-penetrating radar antenna to a designated height without the need for lifting machinery or manual handling, saving time, effort, and cost, and ensuring safety and reliability.

[0004] This utility model is implemented as follows: a ground-penetrating radar antenna support for tunnel detection includes a mounting platform fixed to the top of an extension frame, the extension frame being inserted into a lifting frame and secured by pins, and the lifting frame being inserted into a rotating frame. A vertically arranged transmission rack is provided on the lifting frame, meshing with a gear driven by a third motor. The third motor and the gear are mounted on the rotating frame, which is rotatably connected to a top frame via two trunnions. One trunnion is connected to the output end of a second motor via a transmission mechanism. The second motor and the transmission mechanism are mounted on... Mounted on a top frame, the top frame has four support legs. The support legs are telescopic, with telescopic sections and fixed sections fixed to the top frame. The fixed sections are set on the base, and the telescopic sections are inserted into the fixed sections, with the two slidably connected. The telescopic sections are driven by a screw drive mechanism. Each of the four screw drive mechanisms has a sprocket mounted at the lower end of its screw. The four sprockets are located on the same horizontal plane and connected by a chain. One screw drive mechanism is connected to a first motor. The first motor, the sprockets, and the chain are all mounted on the base. Universal casters are mounted under the base.

[0005] A battery and a controller are provided on the base, and the controller controls the battery to supply power to the first motor, the second motor and the third motor.

[0006] The telescopic section has a limiting hole at its lower end, and the screw of the screw drive mechanism is inserted into the limiting hole. A nut is fixed to the lower end of the telescopic section, and the nut is connected to the screw of the screw drive mechanism.

[0007] The upper end of the screw of the screw transmission mechanism is provided with a limiting block.

[0008] The transmission mechanism includes a worm gear connected to the output end of the second motor and a worm wheel meshing with the worm gear. The worm wheel is mounted on a transmission shaft, which is connected to the trunnion.

[0009] An anti-detachment block is provided at the bottom of the lifting frame.

[0010] The advantages and technical effects of this utility model are as follows: Utilizing a three-stage lifting structure, the height of the support can be easily adjusted. Combined with the movement of the casters, the ground-penetrating radar antenna can be easily pushed to a designated position on the tunnel ceiling for detection. Furthermore, by employing a rotating frame carrying a two-stage lifting mechanism to tilt the mounting platform, the antenna can be easily tilted and aligned with the detection position on the tunnel sidewall. In summary, this utility model can conveniently lift, lower, and tilt the ground-penetrating radar antenna, facilitating geological detection work on the tunnel ceiling and sidewalls. It has a simple structure, stable and safe operation, and is easy to use. It is applicable to geological detection work in tunnels of different types and sizes, with a wide range of applications. It avoids the use of lifting machinery, reducing costs, and eliminates the need for manual antenna handling, improving the convenience of the detection work, reducing the risk of accidents during manual operation, and enhancing the safety of the detection work. It saves time, labor, and costs, and is safe and reliable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a front view of the present invention;

[0013] Figure 3 This is a side view of the worm gear structure of this utility model;

[0014] Figure 4 for Figure 2 Enlarged view of part A;

[0015] Figure 5 This is a top view of the sprocket structure of this utility model.

[0016] In the diagram: 1. Base; 2. Casters; 3. Fixed section; 4. Mounting platform; 5. Top frame; 6. Telescopic section; 7. Screw; 8. Nut; 9. Limiting hole; 10. Limiting block; 11. First motor; 12. Pin; 13. Sprocket; 14. Chain; 15. Rotating frame; 16. Drive shaft; 17. Trunnion; 18. Worm gear; 19. Worm; 20. Second motor;

[0017] 21. Extension frame; 22. Lifting frame; 23. Anti-detachment block; 24. Battery; 25. Gear; 26. Third motor; 27. Controller; 28. Transmission rack. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0019] Please see Figures 1-5 A ground-penetrating radar antenna support for tunnel detection includes a mounting platform 4, which is fixed to the top of an extension frame 21. The extension frame 21 is inserted into a lifting frame 22, and the two are fixed together by a pin 12.

[0020] The lifting frame 22 is inserted into the rotating frame 15. A transmission rack 28 arranged vertically is provided on the lifting frame 22. The transmission rack 28 meshes with a gear 25. The gear 25 is driven by a third motor 26. The third motor 26 and the gear 25 are mounted on the rotating frame 15.

[0021] The rotating frame 15 is rotatably connected to the top frame 5 via two trunnions 17, one of which is connected to the output end of the second motor 20 via a transmission mechanism. The second motor 20 and the transmission mechanism are mounted on the top frame 5.

[0022] The top frame 5 has four support legs, which are telescopic structures. Each support leg has a telescopic section 6 and a fixed section 3 that are fixedly connected to the top frame 5. The fixed section 3 is set on the base 1, and the telescopic section 6 is inserted into the fixed section 3. The two are slidably connected. The telescopic section 6 is driven by a screw transmission mechanism. Each of the four screws 7 of the screw transmission mechanism has a sprocket 13 installed at its lower end. The four sprockets 13 are located in the same horizontal plane and are connected by a chain 14. One of the screws 7 of the screw transmission mechanism is connected to a first motor 11. The first motor 11, the sprockets 13, and the chain 14 are all installed on the base 1. A caster wheel 2 is installed under the base 1.

[0023] The more preferred solution in this embodiment is as follows:

[0024] In this embodiment, a battery 24 and a controller 27 are provided on the base 1. The controller 27 controls the battery 24 to supply power to the first motor 11, the second motor 20 and the third motor 26, which facilitates control.

[0025] The telescopic section 6 has a limiting hole 9 at its bottom. The screw 7 of the screw transmission mechanism is inserted into the limiting hole 9. A nut 8 is fixedly connected to the lower end of the telescopic section 6. The nut 8 is connected to the screw 7 of the screw transmission mechanism. The structure is compact and stable.

[0026] The upper end of the screw 7 of the screw transmission mechanism is provided with a limiting block 10 to prevent the screw 7 from disengaging from the limiting hole 9, so as to ensure structural safety.

[0027] The transmission mechanism includes a worm gear 19 connected to the output end of the second motor 20 and a worm wheel 18 meshing with the worm gear 19. The worm wheel 18 is mounted on a transmission shaft 16, which is connected to the trunnion, resulting in a compact structure.

[0028] An anti-detachment block 23 is provided at the bottom of the lifting frame 22 to prevent the lifting frame 22 from detaching from the rotating frame 15, so as to ensure structural safety.

[0029] The working principle of this utility model:

[0030] When using the ground-penetrating radar antenna bracket, the ground-penetrating radar antenna is mounted on the mounting platform 4, and the extension frame 21 is fixed by the pin 12. A gear and rack mechanism drives the lifting frame 22 to rise, and a screw drive mechanism drives the top frame 5 to rise. This raises the antenna on top of the mounting platform 4 to the detection position at the top of the tunnel. With the help of the casters 2, mobile geological detection work can be carried out at the top of the tunnel. When geological detection of the tunnel side is required, a worm gear mechanism drives the rotating frame 15 to rotate. The rotating frame 15 tilts the mounting platform 4 until the antenna faces the tunnel sidewall. Combined with the height adjustment mentioned above, the antenna can be moved to the detection position corresponding to the tunnel sidewall, allowing for sidewall detection work.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ground-penetrating radar antenna support for tunnel detection, characterized in that: The system includes a mounting platform, which is fixed to the top of an extension frame. The extension frame is inserted into a lifting frame, and the two are secured together by pins. The lifting frame is inserted into the rotating frame, and a vertically arranged transmission rack is provided on the lifting frame. The transmission rack meshes with a gear, which is driven by a third motor. The third motor and the gear are mounted on the rotating frame. The rotating frame is rotatably connected to the top frame via two trunnions, one of which is connected to the output end of the second motor via a transmission mechanism. The second motor and the transmission mechanism are mounted on the top frame. The top frame has four support legs, which are telescopic in structure. Each support leg has a telescopic section and a fixed section that are fixedly connected to the top frame. The fixed section is mounted on the base, and the telescopic section is inserted into the fixed section. The two are slidably connected. The telescopic section is driven by a screw drive mechanism. Each of the four screw drive mechanisms has a sprocket mounted on its lower end. The four sprockets are located on the same horizontal plane and connected by a chain. One screw drive mechanism is connected to a first motor. The first motor, the sprockets, and the chain are all mounted on the base. Casters are mounted on the bottom of the base.

2. The ground-penetrating radar antenna support for tunnel detection according to claim 1, characterized in that: A battery and a controller are provided on the base, and the controller controls the battery to supply power to the first motor, the second motor and the third motor.

3. The ground-penetrating radar antenna support for tunnel detection according to claim 1, characterized in that: The telescopic section has a limiting hole at its lower end, and the screw of the screw drive mechanism is inserted into the limiting hole. A nut is fixed to the lower end of the telescopic section, and the nut is connected to the screw of the screw drive mechanism.

4. The ground-penetrating radar antenna support for tunnel detection according to claim 3, characterized in that: The upper end of the screw of the screw transmission mechanism is provided with a limiting block.

5. The ground-penetrating radar antenna support for tunnel detection according to claim 1, characterized in that: The transmission mechanism includes a worm gear connected to the output end of the second motor and a worm wheel meshing with the worm gear. The worm wheel is mounted on a transmission shaft, which is connected to the trunnion.

6. The ground-penetrating radar antenna support for tunnel detection according to claim 5, characterized in that: An anti-detachment block is provided at the bottom of the lifting frame.

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