Geological radar detection support for subway tunnel structure detection

Abstract

The application provides a geological radar detection support for subway tunnel structure detection, which comprises a support platform and two support assembly of reinforcing components. The support platform is clamped between the two support assemblies through detachable connection of the reinforcing components and the support assemblies, so that the two support assemblies can be quickly connected to ensure stability. The support assembly comprises a crossbar, a track wheel, a stand and an extension rod. The track wheel can be used for track cooperation in the tunnel to drive the movement of the whole detection support. The crossbar is partially clamped in the clamping groove, and the stand is detachably connected with the crossbar to quickly connect the stand and the crossbar. The extension rod is used for connecting the radar antenna and is detachably connected with the stand to quickly connect the extension rod and the stand. Through the quick connection of multiple points, the installation difficulty of the geological radar equipment is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of ground-penetrating radar (GPR) detection technology, and in particular to a GPR detection support for subway tunnel structure inspection. Background Technology

[0002] Subway tunnels, as vital transportation infrastructure in modern cities, carry large volumes of passenger and freight traffic. Regular structural inspections are crucial to ensuring the safe and reliable operation of subway tunnels. Ground-penetrating radar (GPR) technology is widely used in subway tunnel structural inspections, providing accurate geological and underground structural information, such as groundwater levels, soil stability, and tunnel wall cracks.

[0003] However, ground-penetrating radar (GPR) detection equipment faces several difficulties and shortcomings in the structural inspection of subway tunnels. First, installation requires confined tunnel environments; the limited space and operational constraints make installation difficult, leading to long operation times and reduced detection efficiency. Second, GPR equipment is typically large and heavy, requiring additional supports and fixing devices for stability, increasing the complexity of installation and dismantling. Utility Model Content

[0004] This application provides a ground-penetrating radar detection bracket for subway tunnel structure inspection, which can reduce the installation difficulty of ground-penetrating radar equipment and improve inspection efficiency.

[0005] In a first aspect, embodiments of this application provide a ground-penetrating radar detection support for subway tunnel structure inspection, comprising a support platform, a reinforcement component, and two support assemblies. The support platform is snapped between the two support assemblies, and the reinforcement component is detachably connected to the two support assemblies. Each support assembly includes:

[0006] crossbar;

[0007] Track wheel, the track wheel being mounted on the crossbar;

[0008] A support frame having a slot, a portion of the crossbar being located within the slot, and the support frame and the crossbar being detachably connected; and

[0009] A telescopic rod is detachably connected to the support frame. The telescopic rod is capable of extending and retracting along the length of the support frame. The end of the telescopic rod away from the support frame is used to connect a radar antenna.

[0010] In some embodiments, the reinforcement assembly further includes a first reinforcement assembly and a second reinforcement assembly, the first reinforcement assembly and the second reinforcement assembly being respectively disposed on opposite sides of the support assembly, and both the first reinforcement assembly and the second reinforcement assembly being detachably connected between the two support assemblies.

[0011] In some embodiments, the first reinforcement component includes a plurality of first reinforcement rods, and the second reinforcement component includes a plurality of second reinforcement rods. At least some of the projections of the first reinforcement rods onto a first reference plane and at least some of the projections of the second reinforcement rods onto the first reference plane are intersected. The first reference plane is perpendicular to the length direction of the crossbar.

[0012] In some embodiments, the support frame includes:

[0013] Two uprights are spaced apart along the length of the crossbar, and one side of each upright is recessed towards the crossbar to form the slot; and

[0014] Multiple connecting rods, each connecting rod having its two ends respectively connected to two uprights, the connecting rods extending along the length of the horizontal bar, and the multiple connecting rods being arranged at intervals along the extension direction of the uprights;

[0015] The support platform is snapped onto the connecting rod in one of the two uprights.

[0016] In some embodiments, the support platform is recessed on the side facing the crossbar and away from the crossbar, forming two snap-fit ​​grooves, each of which is respectively snapped into one of the connecting rods of each of the uprights.

[0017] In some embodiments, the support frame includes a first frame and a second frame, the first frame and the second frame are rotatably connected by a pivot, the first frame has the slot, and the telescopic rod is connected to the second frame.

[0018] In some embodiments, the support platform includes:

[0019] A rigid body, said rigid body being snapped between the two said support assemblies; and

[0020] A soft body is disposed on the side of the rigid body away from the crossbar and connected to the rigid body.

[0021] In some embodiments, the support platform includes a first support plate and a second support plate, the first support plate being snapped into one of the two bracket assemblies, and the second support plate being snapped into the other of the two bracket assemblies;

[0022] The first support plate has a receiving cavity, and a portion of the second support plate is disposed within the receiving cavity. The second support plate is movable relative to the first support plate to adjust the relative position of the second support plate and the first support plate.

[0023] In some embodiments, the second support plate has protrusions on both sides of the crossbar along its length, and the first support plate has guide holes on both sides of the crossbar along its length. The guide holes communicate with the receiving cavity and extend along the arrangement direction of the two bracket assemblies. The protrusions on both sides are respectively inserted through the guide holes on both sides.

[0024] In some embodiments, the support platform further includes a fastener that is detachably connected to the first protrusion to lock the protrusion and the first support plate.

[0025] The ground-penetrating radar (GPR) detection bracket for subway tunnel structure inspection, based on an embodiment of this application, includes two bracket components: a support platform and a reinforcement component. The two bracket components can be quickly connected by a detachable connection between the reinforcement component and the bracket component, and by the support platform being snapped between them, ensuring stability. Each bracket component includes a crossbar, track wheels, a vertical frame, and a telescopic rod. The track wheels can be used for track alignment within the tunnel, thereby driving the movement of the entire detection bracket. The crossbar is partially snapped into a slot, and the vertical frame is detachably connected to the crossbar, enabling rapid connection between the vertical frame and the crossbar. The telescopic rod is used to connect the radar antenna and is also detachably connected to the vertical frame, further enabling rapid connection between the telescopic rod and the vertical frame. This rapid connection at multiple points reduces the installation difficulty of the ground-penetrating radar equipment and improves detection efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the ground-penetrating radar detection support provided in the embodiments of this application;

[0027] Figure 2 yes Figure 1 An enlarged schematic diagram of the structure at point A in the shown structure;

[0028] Figure 3 This is a partial structural schematic diagram of the ground-penetrating radar detection support provided in the embodiments of this application;

[0029] Figure 4 yes Figure 3 An enlarged schematic diagram of the structure at point B in the shown structure;

[0030] Figure 5 This is an enlarged schematic diagram of the support platform provided in the embodiments of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Support platform; 10a. Snap-fit ​​groove; 11. First support plate; 12. First support plate; 13. Protruding column; 14. Fastener;

[0033] 20. Reinforcing component; 21. First reinforcing component; 211. First reinforcing rod; 22. Second reinforcing component; 212. Second reinforcing rod;

[0034] 30. Support assembly; 31. Crossbar; 32. Track wheel; 33. Upright; 33a. Slot; 331. Upright pole; 332. Connecting rod; 333. First frame; 334. Second frame; 34. Telescopic pole. Detailed Implementation

[0035] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0036] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] Subway tunnels, as vital transportation infrastructure in modern cities, carry large volumes of passenger and freight traffic. Regular structural inspections are crucial to ensuring the safe and reliable operation of subway tunnels. Ground-penetrating radar (GPR) technology is widely used in subway tunnel structural inspections, providing accurate geological and underground structural information, such as groundwater levels, soil stability, and tunnel wall cracks.

[0038] Existing ground-penetrating radar (GPR) detection equipment faces several difficulties and shortcomings in the structural inspection of subway tunnels. First, installation requires confined tunnel environments; the limited space and operational constraints significantly increase installation difficulty, leading to prolonged operation times and reduced detection efficiency. Second, GPR equipment is typically large and heavy, requiring additional supports and fixing devices for stability, further complicating installation and dismantling.

[0039] To address the aforementioned problems, this application provides a ground-penetrating radar detection bracket for subway tunnel structure inspection. Please refer to [link to relevant documentation]. Figure 1-2It includes a support platform 10, a reinforcing component 20, and two support brackets 30. The support platform 10 is snapped between the two support brackets 30, and the reinforcing component 20 is detachably connected to the two support brackets 30. The support platform 10 is snapped between the two support brackets 30 to form a lateral rigid connection. Combined with the reinforcing component 20, it spans across the two support brackets 30 to ensure the synchronous movement of the left and right supports and avoid deviation or torsion caused by uneven force during the push.

[0040] The support platform 10 centrally supports the radar host and control unit, avoiding cable tangling. The reinforcement component 20 distributes the radar antenna load from a single point to the overall frame, reducing the bending moment load of the single-sided support component 30 and extending the life of key components. The reinforcement component 20 can also be bolted to the two support components 30, thereby enabling the two support components 30 to be quickly assembled.

[0041] The following will combine Figure 2-4 Further description of the support assembly 30: The support assembly 30 includes a crossbar 31, track wheels 32, a vertical frame 33, and a telescopic rod 34. The crossbar 31 can serve as an integrated load-bearing platform and as the mounting base for the track wheels 32 and the vertical frame 33. The weight and pushing force of the radar equipment are transmitted to the track wheels 32 through a rigid structure.

[0042] The track wheel 32 is mounted on the crossbar 31. Multiple track wheels 32 can be mounted on each crossbar 31 to distribute the load. The existing subway track is used as a zero-cost, high-precision guide rail. The track wheel 32 is fitted into the guide rail to prevent derailment.

[0043] The upright 33 has a slot 33a, and part of the crossbar 31 is located in the slot 33a. The upright 33 and the crossbar 31 can also be detachably connected by bolts. The U-shaped slot 33a and anti-loosening bolt design at the bottom of the upright 33 achieves vertical constraint on the crossbar 31, while allowing for quick disassembly.

[0044] The telescopic rod 34 can be detachably connected to the support frame 33 by means of ropes or clamps. The telescopic rod 34 can extend and retract along the length of the support frame 33. The end of the telescopic rod 34 away from the support frame 33 is used to connect the radar antenna. Specifically, the telescopic rod 34 can be a mechanical sleeve type telescopic rod 34, with a specific structure of: using multiple high-strength aluminum alloy / carbon fiber sleeves nested together, and locking with spring locking pins or knobs to achieve stepped extension and retraction; it can also be a pneumatic telescopic rod 34, an electric push rod, etc. The telescopic rods 34 of the above types are all purchased from commercially available products, so their principles will not be further described here.

[0045] In the specific disassembly and assembly process: First, connect the two uprights 33 and the reinforcing component 20 with bolts to form the first assembly structure. Second, install the track wheel 32 on the subway track, and engage the slot 33a on the upright 33 in the first assembly structure with the crossbar 31 on the track wheel 32. Then connect the crossbar 31 and the upright 33 with bolts to form the second assembly structure. Third, install the support platform 10 on the two uprights 33 in the second assembly structure to form the third assembly structure. Fourth, install the radar antenna on the telescopic pole 34 and fix it at an appropriate length. Fifth, install the telescopic pole 34 with the radar antenna on it onto the upright 33 with ropes or clamps. The bottom end of the telescopic pole 34 can be placed on the support platform 10. The ropes and clamps not only serve the installation function but also limit the detection angle of the radar antenna.

[0046] In this embodiment, since the support frame 33 and the reinforcing component 20 are detachably connected, the support frame 33 and the crossbar 31 are also detachably connected, the reinforcing component 20 and the support frame 33 are also detachably connected, and the connecting platform is snapped onto the support frame 33, it can be quickly assembled and disassembled in narrow tunnels, which significantly improves efficiency and reduces wear on the tunnel structure.

[0047] The two independent support frames 33 are connected by the reinforcement component 20 to ensure the stability of the ground-penetrating radar antenna and prevent errors caused by shaking during detection. The telescopic rod 34 is adjustable in length and angle (adjustable by binding the rope to the telescopic rod 34), which can adapt to different tunnel heights and arch angles and improve the detection range.

[0048] Further, please refer to Figure 1 as well as Figure 3 The reinforcement component 20 also includes a first reinforcement component 21 and a second reinforcement component 22. The first reinforcement component 21 and the second reinforcement component 22 are respectively disposed on opposite sides of the support component 30. The first reinforcement component 21 and the second reinforcement component 22 are located on opposite sides of the support component 30, forming a symmetrical triangular support structure, which effectively suppresses the left and right swaying of the support due to uneven track, equipment vibration or inertial force during movement or testing. The double-sided reinforcement, through the cross-force design (such as X-shaped or parallel rod structure), can disperse the lateral torque and avoid the structural distortion that may be caused by single-sided reinforcement, which is especially suitable for long-distance testing or high-speed movement scenarios.

[0049] Since the first reinforcement component 21 and the second reinforcement component 22 are detachably connected to the upright 33 by bolts and are packaged independently, they take up less space during transportation. The weight of the components on each side is reduced, which reduces the difficulty of manual handling. If a reinforcement component 20 on one side is damaged by collision or fatigue, it can be disassembled and replaced separately without replacing the entire reinforcement system, thus reducing maintenance costs.

[0050] Furthermore, the first reinforcing component 21 includes a plurality of first reinforcing rods 211, and the second reinforcing component 22 includes a plurality of second reinforcing rods 212. At least some of the projections of the first reinforcing rods 211 onto the first reference plane and at least some of the projections of the second reinforcing rods 212 onto the first reference plane are intersected. The first reference plane is perpendicular to the length direction of the crossbar 31.

[0051] The first reinforcing rod 211 and the second reinforcing rod 212 project and intersect on a plane perpendicular to the direction of the crossbar 31, forming a spatial structure similar to an X-shape or a grid. Through the intersecting layout of the first reinforcing rod 211 and the second reinforcing rod 212, the lateral force (such as lateral vibration caused by uneven track) is decomposed into tensile and compressive forces in multiple directions, effectively suppressing the overall torsion and deformation of the support. The intersecting rods form triangular mechanical units, which enhance the structure's resistance to shear forces and avoid local instability that may be caused by unilateral reinforcement.

[0052] Both the first reinforcing rod 211 and the second reinforcing rod 212 are connected to the upright 33 using a quick bolt design, which allows the first reinforcing component 21 and the second reinforcing component 22 on one side to be disassembled and installed independently, and can be removed and replaced separately when damaged.

[0053] In one embodiment, the support frame 33 includes two uprights 331 and a plurality of connecting rods 332. The two uprights 331 are arranged at intervals along the length of the crossbar 31. The uprights 331 are recessed on one side facing the crossbar 31 to form a slot 33a. The two ends of the connecting rods 332 are respectively connected to the two uprights 331. The connecting rods 332 extend along the length of the crossbar 31, and the plurality of connecting rods 332 are arranged at intervals along the extension direction of the uprights 331. The support platform 10 is engaged with the connecting rods 332 in the two uprights 33.

[0054] Two uprights 331 are arranged at intervals along the length of the crossbar 31 to form a symmetrical vertical support structure. Multiple connecting rods 332 are arranged at intervals along the extension direction of the uprights 331 to form a truss-like grid structure. The connecting rods 332 are connected to the two uprights 331 at both ends to convert lateral forces (such as track vibration) into axial tensile / compression forces, which significantly improves the shear and torsional stiffness of the uprights 33.

[0055] The upright 331 is recessed on the side facing the horizontal bar 31 to form a groove 33a, which cooperates with the horizontal bar 31 to effectively suppress the sway of the horizontal bar 31, and is especially suitable for long-span detection supports (such as wide-gauge tunnel detection).

[0056] Following the above, the side of the support platform 10 facing the crossbar 31 is recessed to the side away from the crossbar 31, forming two locking grooves 10a. Each locking groove 10a has a corresponding connecting rod 332 in each of the uprights 33.

[0057] The support platform 10 is fixed to the connecting rods 332 of the two uprights 33 by two snap-fit ​​slots 10a, forming a symmetrical support structure. This effectively suppresses the lateral sway and longitudinal tilt of the platform during the detection process, and is especially suitable for long-span support detection brackets (such as wide-gauge tunnel detection).

[0058] In addition, the support platform 10 uses the connecting rod 332, which plays a fixing role in the frame 33 itself, as the connection point. It can be snapped together with the frame 33 without any additional processing of the frame 33. Furthermore, since there are multiple connecting rods 332 in each frame 33, users can connect the support platform 10 with connecting rods 332 of different heights according to the actual line conditions, so as to adapt to the radar antenna height requirements of different detection positions such as tunnel arch and side wall.

[0059] In another embodiment, the support frame 33 includes a first frame 333 and a second frame 334, which are rotatably connected by a pivot. The first frame 333 has a slot 33a, and the telescopic rod 34 is connected to the second frame 334. That is, the support frame 33 can be an A-frame ladder. When transporting the support frame 33, the second frame 334 can be rotated so that the first frame 333 and the second frame 334 are approximately at the same height, which facilitates transportation.

[0060] It should be understood that the frame 33 in this application is a product purchased from the market. That is, the top of the first frame 333 and the second frame 334 is not a simple pivot, but a specially designed hinge plate. On this hinge plate (usually on the fixed part of one side of the ladder frame), there are precise positioning holes or positioning slots. On the top of the ladder frame that needs to be rotated on the other side, there is a retractable locking pin (usually called "locking tongue", "positioning pin" or "buckle"). By cooperating with the positioning hole or positioning slot, the switching between the A-frame ladder and the straight ladder can be realized. This is prior art, so its principle will not be described further here.

[0061] In one embodiment of this application, the support platform 10 includes a rigid body and a flexible body. The rigid body is snapped between two bracket assemblies 30 to provide rigid support, ensuring that the radar equipment maintains a stable posture during movement or detection, reducing antenna position shift caused by bracket deformation, evenly transferring the weight of the radar equipment to the bracket assembly 30, avoiding local stress concentration, and extending the service life of connectors (such as snap-fit ​​groove 10a and connecting rod 332).

[0062] The soft body is located on the side of the hard body away from the crossbar 31 and is connected to the hard body. The soft body acts as a damping layer to absorb the impact energy caused by track vibration or unevenness of the tunnel surface, reduce the interference of high-frequency vibration on radar signals, and improve the data signal-to-noise ratio.

[0063] Synergistic effect: The combination of rigid and soft materials forms a two-layer structure of "rigid load-bearing + flexible vibration reduction", which takes into account both structural stability and vibration isolation requirements.

[0064] The rigid body can be made of lightweight metal (such as aluminum alloy) or engineering plastic, while the soft body can be made of highly wear-resistant rubber or silicone, balancing performance and cost.

[0065] The rigid body can be made of lightweight metal (such as aluminum alloy) or engineering plastic, while the soft body is made of highly wear-resistant rubber or silicone, balancing performance and cost. The soft body can be connected to the rigid body by bolts or adhesives.

[0066] Since the rigid main body is made of lightweight metal (such as aluminum alloy), the entire frame 33 and the reinforcing component 20 can also be made of aluminum alloy, making the entire detection bracket lighter and reducing wear on the track.

[0067] In another embodiment, please refer to Figure 5 The support platform 10 includes a first support plate 11 and a second support plate 12. The first support plate 11 is snapped into one of the two bracket assemblies 30, and the second support plate 12 is snapped into the other of the two bracket assemblies 30.

[0068] The first support plate 11 has a receiving cavity, and a portion of the second support plate 12 is disposed within the receiving cavity. The second support plate 12 is movable relative to the first support plate 11 to adjust the relative position of the second support plate 12 and the first support plate 11.

[0069] The first support plate 11 and the second support plate 12 are independently snapped into the two uprights 33, allowing for quick assembly and disassembly on one side, adapting to the rapid deployment needs in narrow spaces such as subway tunnels. For example, the second support plate 12 can be expanded in wide-gauge tunnels to cover a wider area, while it can be retracted in narrow tunnels to reduce space occupation. Furthermore, it can be well adapted for assembly to different uprights 33.

[0070] During the transportation phase, the volume of the entire support platform 10 can be reduced by retracting at least part of the second support plate 12 into the receiving cavity of the first support plate 11, thereby facilitating transportation.

[0071] Following the above, the second support plate 12 has protruding posts 13 on both sides of the crossbar 31 along its length, and the first support plate 11 has guide holes on both sides of the crossbar 31 along its length. The guide holes are connected to the receiving cavity and extend along the arrangement direction of the two bracket assemblies 30. The protruding posts 13 on both sides are correspondingly inserted into the guide holes on both sides.

[0072] The cooperation between the protruding post 13 and the guide hole forms a linear sliding pair, ensuring that the second support plate 12 moves along the predetermined direction during the adjustment process, avoiding lateral sway or tilt. The protruding posts 13 on both sides are symmetrically inserted into the guide hole, forming a double-point constraint, which effectively suppresses the torsional deformation of the second support plate 12 caused by equipment vibration during the movement or testing process, and improves the overall rigidity of the structure.

[0073] The guide hole extends along the arrangement direction of the two uprights 33. The second support plate 12 can be infinitely adjusted or positioned in stages by sliding the protrusion 13 in the hole to adapt to the requirements of different uprights 33. For example, because the specifications of different uprights 33 are different, the distance between the connecting rods 332 on the two uprights 33 is different.

[0074] Furthermore, to reduce swaying after the first support plate 11 and the second support plate 12 are attached to the upright 33, and to improve its stability, please refer to [reference needed]. Figure 5 The support platform 10 also includes a fastener 14, which is detachably connected to the first protrusion 13 to lock the protrusion 13 and the first support plate 11. The fastener 14 can be a washer nut, and the surface of the protrusion 13 can be provided with threads. The first support plate 11 and the second support plate 12 can be locked by tightening the threads, thereby improving the stability of the entire support platform 10, that is, further improving the stability of the radar equipment on the support platform 10.

[0075] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A ground-penetrating radar detection bracket for subway tunnel structure inspection, characterized in that, The system includes a support platform, a reinforcement component, and two support brackets. The support platform is snapped between the two support brackets, and the reinforcement component is detachably connected to the two support brackets. Each support bracket includes: crossbar; Track wheel, the track wheel being mounted on the crossbar; A support frame having a slot, a portion of the crossbar being located within the slot, and the support frame and the crossbar being detachably connected; and A telescopic rod is detachably connected to the support frame. The telescopic rod is capable of extending and retracting along the length of the support frame. The end of the telescopic rod away from the support frame is used to connect a radar antenna.

2. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 1, characterized in that, The reinforcement assembly further includes a first reinforcement assembly and a second reinforcement assembly. The first reinforcement assembly and the second reinforcement assembly are respectively disposed on opposite sides of the support assembly. Both the first reinforcement assembly and the second reinforcement assembly can be detachably connected between the two support assemblies.

3. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 2, characterized in that, The first reinforcement component includes a plurality of first reinforcement rods, and the second reinforcement component includes a plurality of second reinforcement rods. At least a portion of the projections of the first reinforcement rods onto a first reference plane and at least a portion of the projections of the second reinforcement rods onto the first reference plane are intersected. The first reference plane is perpendicular to the length direction of the crossbar.

4. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 1, characterized in that, The support frame includes: Two uprights are spaced apart along the length of the crossbar, and one side of each upright is recessed towards the crossbar to form the slot; and Multiple connecting rods, each connecting rod having its two ends respectively connected to two uprights, the connecting rods extending along the length of the horizontal bar, and the multiple connecting rods being arranged at intervals along the extension direction of the uprights; The support platform is snapped onto the connecting rod in one of the two uprights.

5. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 4, characterized in that, The support platform is recessed on the side facing the crossbar and on the side away from the crossbar, forming two locking grooves, each of which is respectively engaged with one of the connecting rods of each of the uprights.

6. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 1, characterized in that, The support frame includes a first frame and a second frame, which are rotatably connected by a pivot. The first frame has the slot, and the telescopic rod is connected to the second frame.

7. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 1, characterized in that, The support platform includes: A rigid body, said rigid body being snapped between the two said support assemblies; and A soft body is disposed on the side of the rigid body away from the crossbar and connected to the rigid body.

8. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 1, characterized in that, The support platform includes a first support plate and a second support plate, wherein the first support plate is snapped into one of the two bracket assemblies, and the second support plate is snapped into the other of the two bracket assemblies; The first support plate has a receiving cavity, and a portion of the second support plate is disposed within the receiving cavity. The second support plate is movable relative to the first support plate to adjust the relative position of the second support plate and the first support plate.

9. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 8, characterized in that, The second support plate has protruding posts on both sides of the crossbar along its length, and the first support plate has guide holes on both sides of the crossbar along its length. The guide holes communicate with the receiving cavity and extend along the arrangement direction of the two bracket assemblies. The protruding posts on both sides pass through the guide holes on both sides respectively.

10. The ground-penetrating radar detection bracket for subway tunnel structure inspection according to claim 9, characterized in that, The support platform also includes fasteners that are detachably connected to the first protrusion to lock the protrusion and the first support plate.

Images