Tunnel lining void detection device

Abstract

The utility model discloses a tunnel lining void detection device. A wireless bottom detection radar is installed on the top of a track type walking assembly through a fast-assembly module. The quick dismounting module comprises a limiting mounting seat and a quick mounting assembly, the quick mounting assembly comprises a mounting box, an adjusting mechanism and a telescopic block assembly, the adjusting mechanism and the telescopic block assembly are arranged in the mounting box, an opening is formed in the side part of the mounting box, and the adjusting mechanism is used for driving the telescopic block assembly to extend out of the mounting box or retract into the mounting box through the opening; the limiting mounting seat is provided with a mounting cavity and a limiting part, the mounting cavity is used for containing the mounting box, and when the mounting box is arranged in the mounting cavity, the limiting part corresponds to the opening in position, and when the telescopic block assembly extends out of the mounting box, the telescopic block assembly is clamped and matched with the limiting part. Through cooperation of the rail type walking assembly and the rapid disassembly and assembly module of the wireless bottom probing radar, the adjusting mechanism is used for driving the telescopic block assembly to be clamped with the limiting installation base, and rapid assembly and disassembly are achieved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel inspection technology, and in particular to a tunnel lining void detection device. Background Technology

[0002] The tunnel lining full-section void detection device is a special equipment used to monitor whether there is a void between the tunnel lining and the initial support. Voids can weaken the load-bearing capacity of the tunnel structure and affect operational safety. Therefore, this device provides key technical support for tunnel construction quality control and disease prevention through real-time monitoring and early warning.

[0003] Chinese utility model patent (publication number: CN218481457U) discloses a tunnel anti-loosening detection device, which solves the technical problem that "workers have to hold up the ground-penetrating radar for a long time and constantly adjust its angle, which causes arm pain and positional displacement of the ground-penetrating radar, resulting in poor detection accuracy, unreliable results, and inability to meet actual use requirements." However, when wireless ground-penetrating radar works in conjunction with the tunnel boring machine via a track-mounted walking device, the common installation method is to connect the wireless ground-penetrating radar to the track-mounted walking device with bolts. This method requires screwing in and out the bolts one by one. When working at height on the tunnel boring machine's arch frame, technicians still need to use scaffolding or high-altitude work platforms, which is time-consuming, inconvenient, and the long hours of working at height greatly deplete the technicians' energy. A slight mistake could lead to a safety accident and threaten the lives of personnel. Utility Model Content

[0004] In response to the problems raised in the background art, the purpose of this utility model is to propose a tunnel lining void detection device, which solves the problems of long installation time and inconvenient operation of existing detection devices.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A tunnel lining void detection device includes a track-mounted walking assembly, a wireless bottom-penetrating radar, and a quick-assembly module. The wireless bottom-penetrating radar is mounted on top of the track-mounted walking assembly via the quick-assembly module.

[0007] The quick-assembly module includes a limiting mounting base and a quick-assembly assembly. The limiting mounting base is located on the top of the track-type walking assembly, and the quick-assembly assembly is located on the bottom of the wireless bottom-penetrating radar.

[0008] The quick-installation assembly includes a mounting box, an adjustment mechanism, and a telescopic block assembly. The adjustment mechanism and the telescopic block assembly are located inside the mounting box. The mounting box has an opening on its side. The adjustment mechanism is used to drive the telescopic block assembly to extend out of the mounting box or retract into the mounting box through the opening.

[0009] The limiting mounting seat is provided with a mounting cavity and a limiting part. The mounting cavity is used to accommodate the mounting box. When the mounting box is placed in the mounting cavity, the limiting part corresponds to the position of the opening. When the telescopic block assembly extends out of the mounting box, the telescopic block assembly engages with the limiting part.

[0010] Preferably, the limiting mounting base includes two side plates and one end plate. The two side plates are arranged parallel to each other, and the two ends of the end plate are respectively connected to the same end of the two side plates. The two side plates and the end plate enclose the mounting cavity, and the top and one end of the mounting cavity are open.

[0011] The side plate is provided with a latch, which is the limiting part.

[0012] Preferably, the telescopic block assembly includes a fixed plate, an elastic element, and a locking block. The fixed plate is disposed inside the mounting box, one end of the elastic element is connected to the fixed plate, and the other end of the elastic element is connected to the locking block.

[0013] When the adjustment mechanism drives the card block to extend out of the opening, the elastic element is in a stretched state.

[0014] Preferably, the adjusting mechanism includes a threaded rod, a push block, and a knob.

[0015] The threaded rod is rotatably installed inside the mounting box. One end of the threaded rod passes through the mounting box and is provided with the knob. The knob is located outside the mounting box. The push block is threadedly connected to the threaded rod and is slidably disposed inside the mounting box.

[0016] Rotating the knob drives the threaded rod to rotate, which in turn drives the pusher to push the latch out of the opening.

[0017] Preferably, there are two telescopic block assemblies, and the mounting box has openings on its left and right sides respectively. The two telescopic block assemblies are arranged opposite each other on the left and right sides of the rear end of the mounting box.

[0018] The push block is located at the front end of the mounting box, and the push block does not interfere with the fixing plate.

[0019] Preferably, the push block is a trapezoidal block, the threaded rod passes through the middle of the push block, and the inclined surfaces on the left and right sides of the push block are respectively provided with the two locking blocks.

[0020] Preferably, when the mounting box is installed in the mounting cavity, the outer side wall of the mounting box is in contact with the inner side wall of the limiting mounting seat.

[0021] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0022] By combining the track-type walking component with the quick-assembly module of the wireless bottom-detecting radar, and using the adjustment mechanism to drive the telescopic block component to engage with the limit mounting seat, rapid installation and disassembly are achieved. This avoids the risks of high-altitude operations caused by traditional bolted connections, simplifies the operation process, and improves detection efficiency and safety. It has the advantages of simplifying installation steps, improving the safety of high-altitude operations, reducing operation time, and lowering safety risks. Attached Figure Description

[0023] Figure 1 This is an application diagram of one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0025] Figure 3 This is an exploded view of the quick-assembly and disassembly module of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the quick-installation component of this utility model.

[0027] The components include: track-type walking assembly 1, wireless bottom-detecting radar 2, limit mounting base 3, mounting cavity 301, side plate 31, bayonet 310, end plate 32, quick-install assembly 4, mounting box 41, opening 410, adjustment mechanism 42, threaded rod 421, push block 422, knob part 423, telescopic block assembly 43, fixing plate 431, elastic element 432, and locking block 433. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0031] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is in conjunction with the appendix Figures 1 to 4 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0033] A tunnel lining void detection device includes a track-mounted walking assembly 1, a wireless bottom-penetrating radar 2, and a quick-assembly module. The wireless bottom-penetrating radar 2 is installed on the top of the track-mounted walking assembly 1 via the quick-assembly module.

[0034] The quick-assembly module includes a limiting mounting base 3 and a quick-assembly component 4. The limiting mounting base 3 is located on the top of the track-type walking component 1, and the quick-assembly component 4 is located on the bottom of the wireless bottom-detecting radar 2.

[0035] The quick-installation assembly 4 includes a mounting box 41, an adjustment mechanism 42, and a telescopic block assembly 43. The adjustment mechanism 42 and the telescopic block assembly 43 are located inside the mounting box 41. The side of the mounting box 41 is provided with an opening 410. The adjustment mechanism 42 is used to drive the telescopic block assembly 43 to extend out of the outside of the mounting box 41 or retract into the inside of the mounting box 41 through the opening 410.

[0036] The limiting mounting base 3 is provided with a mounting cavity 301 and a limiting part. The mounting cavity 301 is used to accommodate the mounting box 41. When the mounting box 41 is located in the mounting cavity 301, the limiting part corresponds to the position of the opening 410. When the telescopic block assembly 43 extends out of the mounting box 41, the telescopic block assembly 43 engages with the limiting part.

[0037] The track-mounted walking assembly 1 refers to the mechanical carrier that moves along the tunnel wall; the wireless bottom-detecting radar 2 refers to the detection instrument that emits electromagnetic waves and receives reflected signals, communicating with the ground control terminal via a wireless transmission module. The quick-connect and disconnect module refers to the mechanical component that enables the quick connection and separation of the track-mounted walking assembly 1 and the wireless bottom-detecting radar 2, which can be achieved using a plug-in locking mechanism, including positioning constraint and locking function units.

[0038] Specifically, during installation, when the mounting box 41 is inserted into the mounting cavity 301 of the limiting mounting seat 3, the outer wall of the mounting box 41 and the inner side of the mounting cavity 301 form a clearance fit to achieve initial positioning. The operator drives the telescopic block assembly 43 to extend out of the mounting box 41 through the opening 410 by operating the adjustment mechanism 42, and engages with the limiting part of the limiting mounting seat 3 to achieve mechanical locking. During disassembly, the telescopic block assembly 43 is retracted into the mounting box 41 by operating the adjustment mechanism 42, thereby releasing the engagement between the telescopic block assembly 43 and the limiting mounting seat 3.

[0039] This invention enables tool-free, rapid assembly and disassembly between the wireless ground-penetrating radar 2 and the track-mounted component 1, allowing high-altitude workers to complete equipment installation without carrying wrenches or other tools. The mechanical snap-fit ​​structure reduces operational steps by over 90% compared to bolted connections, effectively lowering the risk of falls from heights. The plug-in installation method between the quick-install component 4 and the limiting mounting base 3 ensures accurate repeated installation positioning of the equipment, avoiding deviations in detection data caused by variations in manual tightening force. The snap-fit ​​engagement between the telescopic block component 43 of the quick-install component and the limiting part of the limiting mounting base can accommodate minor dimensional errors in the installation cavity, ensuring reliable locking under different working conditions.

[0040] Furthermore, the limiting mounting base 3 includes two side plates 31 and one end plate 32. The two side plates 31 are arranged parallel to each other, and the two ends of the end plate 32 are respectively connected to the same end of the two side plates 31. The two side plates 31 and the end plate 32 enclose the mounting cavity 301, and the top and one end of the mounting cavity 301 are open.

[0041] The side plate 31 is provided with a latch 310, which is the limiting part.

[0042] Two parallel side plates 31 and an end plate 32 enclose a mounting cavity 301 with an open top and one open end, allowing the mounting box 41 at the bottom of the wireless bottom-detecting radar 2 to be directly inserted into the mounting cavity 301 from the open end, simplifying the installation path. A latch 310 on the side plate 31 acts as a limiting part, engaging with the telescopic block assembly 43 at the opening on the side of the mounting box 41. This mechanical limiting replaces traditional bolt fixing; during operation, only the extension or retraction of the telescopic block assembly 43 needs to be controlled to complete the assembly and disassembly. The open top of the mounting cavity 301 facilitates positioning when the mounting box is placed vertically, while the open end allows the mounting box to slide horizontally. This combination enables rapid positioning of the mounting box 41 with dual degrees of freedom in both horizontal and vertical directions. The latch 310 on the side plate engages with the telescopic block assembly 43, achieving a rigid connection through geometric constraints. This avoids the operational burden of repeated bolt tightening, making it particularly suitable for rapid operation in high-altitude work scenarios, significantly improving assembly and disassembly efficiency and safety.

[0043] Furthermore, the telescopic block assembly 43 includes a fixing plate 431, an elastic element 432, and a locking block 433. The fixing plate 431 is disposed inside the mounting box 41. One end of the elastic element 432 is connected to the fixing plate 431, and the other end of the elastic element 432 is connected to the locking block 433.

[0044] When the adjustment mechanism 42 drives the locking block 433 to extend out of the opening 410, the elastic element 432 is in a stretched state.

[0045] The telescopic block assembly uses a fixed plate 431 as an installation reference to achieve the positioning connection between the elastic element 432 and the locking block 433. The fixed relationship between the fixed plate 431 and the mounting box 41 ensures the stability of the overall structure of the telescopic block assembly 43. The elastic element 432 is arranged with one end connected to the fixed plate 431 and the other end connected to the locking block 433. This allows the elastic element 432 to automatically retract the locking block 433 back into the mounting box 41 when the force of the adjustment mechanism 42 is released, achieving quick unlocking. This structure, through the dual functions of the elastic element 432's tensile energy storage and mechanical limiting, ensures both the convenience of disassembly and assembly operations and the reliability of the connection state during high-altitude operations.

[0046] Preferably, the fixing plate 431 can be made of metal sheet and fixed to the bottom wall of the mounting box 41 by welding. The elastic element 432 can be implemented by a helical spring or a rubber elastomer.

[0047] Furthermore, the adjustment mechanism 42 includes a threaded rod 421, a push block 422, and a knob 423;

[0048] The threaded rod 421 is rotatably mounted inside the mounting box 41. One end of the threaded rod 421 passes through the mounting box 41 and is provided with the knob part 423. The knob part 423 is located outside the mounting box 41. The push block 422 is threadedly connected to the threaded rod 421 and is slidably disposed inside the mounting box 41.

[0049] By rotating the knob 423, the threaded rod 421 is driven to rotate, which in turn drives the push block 422 to push the locking block 433 out of the opening 410.

[0050] The knob 423 is located outside the mounting box 41, allowing the operator to manually rotate the threaded rod 421 without tools. As the threaded rod 421 rotates, the threaded push block 422 moves axially, directly pushing the locking block 433 outwards. This mechanical transmission method ensures precise controllability of the push block 422's displacement and enables one-handed operation through the external knob 423. The threaded connection between the push block 422 and the threaded rod 421 converts rotational motion into linear motion, ensuring the locking block 433 remains stably extended or retracted, preventing accidental disengagement due to vibration. The external knob 423 significantly simplifies the operation process; operators no longer need to repeatedly tighten multiple bolts, but can quickly assemble and disassemble the radar device simply by rotating a single knob 423.

[0051] Furthermore, there are two telescopic block assemblies 43, and the mounting box 41 has openings 410 on its left and right sides respectively. The two telescopic block assemblies 43 are arranged opposite each other on the left and right sides of the rear end of the mounting box 41.

[0052] The push block 422 is located at the front end of the mounting box 41, and the push block 422 and the fixing plate 431 do not interfere with each other.

[0053] The fact that there are two telescopic block assemblies 43 indicates that they adopt a symmetrically distributed snap-fit ​​structure. Specifically, this can be achieved by using telescopic block assemblies 43 (fixed plate 431, elastic element 432, and snap-fit ​​block 433) arranged in a mirror image on both sides, which enhances the connection stability through synchronous snap-fit ​​on both sides. The mounting box 41 has openings 410 on both the left and right sides, which means that the side walls of the box are symmetrically opened with through holes, allowing the snap-fit ​​block 433 to extend in both directions to achieve a limiting fit. The two telescopic block assemblies 43 are arranged opposite each other on the left and right sides of the rear end of the mounting box 41, and the push block 422 is located at the front end of the mounting box 41. This means that the drive mechanism and the actuator are spatially separated to avoid motion interference between the front adjustment mechanism 42 and the telescopic block assembly 43 arranged at the rear end.

[0054] Specifically, when the knob 423 is rotated, the threaded rod 421 drives the push block 422 to move backward along the front end of the mounting box 41. When the push block 422 moves to the pressing block 433, since the pressing block 433 can only move in the direction of the opening 410 on the side of the mounting box 41, the linear thrust of the push block 422 is converted into the lateral displacement of the pressing block 433, forcing the pressing blocks 433 on the left and right sides to extend outward from the openings 410 on the left and right sides respectively, and lock into the locking slots 310 of the limiting mounting seat, completing the rapid assembly and preventing the mounting box 41 from detaching from the limiting mounting seat 3. During disassembly, the knob 423 is rotated in the opposite direction, the push block 422 moves forward to release the thrust (pressing) on ​​the pressing block 433, and the retraction force of the elastic element 432 pulls the pressing block 433 back into the mounting box 41, achieving rapid separation.

[0055] Furthermore, the push block 422 is a trapezoidal block, the threaded rod 421 passes through the middle of the push block 422, and the inclined surfaces on the left and right sides of the push block 422 are respectively corresponding to the two locking blocks 433.

[0056] The threaded rod 421 passing through the middle of the push block 422 means that the threaded rod 421 is installed through the geometric center axis of the push block 422. The two inclined surfaces of the trapezoidal push block 422 are respectively set with two locking blocks 433, so that the movement trajectory of the locking blocks 433 can match the angle of the inclined surfaces, so that when the push block 422 moves axially, the inclined surfaces of the push block allow the locking blocks 433 to slide in a predetermined direction (the direction of the opening 410).

[0057] Specifically, when the threaded rod 421 rotates, the push block 422 moves axially, and the inclined surfaces on both sides simultaneously contact the two locking blocks 433. The linear contact between the inclined surfaces and the locking blocks 433 generates a lateral force, pushing the locking blocks 433 outward synchronously. The threaded rod 421 passing through the middle of the trapezoidal block ensures that the point of application of the driving force is located at the center of the push block 422, eliminating the possibility of uneven force on both sides. Under the action of the inclined surfaces, the locking blocks 433 move along a straight trajectory, ensuring accurate alignment with the locking slot 310 of the limiting mounting seat 3.

[0058] Furthermore, when the mounting box 41 is installed in the mounting cavity 301, the outer side wall of the mounting box 41 is in contact with the inner side wall of the limiting mounting seat 3.

[0059] During the process of placing the mounting box 41 into the mounting cavity 301, the zero-gap contact between the outer wall of the mounting box 41 and the inner wall of the limiting mounting seat 3 forms a physical constraint, directly restricting the lateral and longitudinal degrees of freedom of the mounting box 41, leaving only the vertical degree of freedom for equipment assembly and disassembly. This fitting design, through complementary matching of geometric shapes, ensures that the installation positions of the wireless bottom-penetrating radar 2 and the track-type walking assembly 1 are uniquely determined.

[0060] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A tunnel lining void detection device, characterized in that: It includes a track-mounted walking assembly, a wireless bottom-detecting radar, and a quick-assembly module, wherein the wireless bottom-detecting radar is mounted on top of the track-mounted walking assembly via the quick-assembly module; The quick-assembly module includes a limiting mounting base and a quick-assembly assembly. The limiting mounting base is located on the top of the track-type walking assembly, and the quick-assembly assembly is located on the bottom of the wireless bottom-penetrating radar. The quick-installation assembly includes a mounting box, an adjustment mechanism, and a telescopic block assembly. The adjustment mechanism and the telescopic block assembly are located inside the mounting box. The mounting box has an opening on its side. The adjustment mechanism is used to drive the telescopic block assembly to extend out of the mounting box or retract into the mounting box through the opening. The limiting mounting seat is provided with a mounting cavity and a limiting part. The mounting cavity is used to accommodate the mounting box. When the mounting box is placed in the mounting cavity, the limiting part corresponds to the position of the opening. When the telescopic block assembly extends out of the mounting box, the telescopic block assembly engages with the limiting part.

2. The tunnel lining void detection device according to claim 1, characterized in that: The limiting mounting base includes two side plates and one end plate. The two side plates are arranged parallel to each other, and the two ends of the end plate are respectively connected to the same end of the two side plates. The two side plates and the end plate enclose the mounting cavity, and the top and one end of the mounting cavity are open. The side plate is provided with a latch, which is the limiting part.

3. The tunnel lining void detection device according to claim 2, characterized in that: The telescopic block assembly includes a fixed plate, an elastic element, and a locking block. The fixed plate is located inside the mounting box. One end of the elastic element is connected to the fixed plate, and the other end of the elastic element is connected to the locking block. When the adjustment mechanism drives the card block to extend out of the opening, the elastic element is in a stretched state.

4. The tunnel lining void detection device according to claim 3, characterized in that: The adjustment mechanism includes a threaded rod, a push block, and a knob. The threaded rod is rotatably installed inside the mounting box. One end of the threaded rod passes through the mounting box and is provided with the knob. The knob is located outside the mounting box. The push block is threadedly connected to the threaded rod and is slidably disposed inside the mounting box. Rotating the knob drives the threaded rod to rotate, which in turn drives the pusher to push the latch out of the opening.

5. The tunnel lining void detection device according to claim 4, characterized in that: The number of telescopic block assemblies is two, and the installation box has openings on the left and right sides respectively. The two telescopic block assemblies are arranged opposite each other on the left and right sides of the rear end of the installation box. The push block is located at the front end of the mounting box, and the push block does not interfere with the fixing plate.

6. The tunnel lining void detection device according to claim 5, characterized in that: The push block is a trapezoidal block, the threaded rod passes through the middle of the push block, and the inclined surfaces on the left and right sides of the push block are respectively set to correspond to the two locking blocks.

7. The tunnel lining void detection device according to claim 6, characterized in that: When the mounting box is installed in the mounting cavity, the outer side wall of the mounting box is in contact with the inner side wall of the limiting mounting seat.

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