Device for detecting construction quality of underground pipeline

Abstract

When the device for detecting the construction quality of the underground pipeline is used, only the clamping mechanism of the device abuts against the pipeline, so that the part, making contact with the pipeline, of the device can be regarded as a point; the displacement detection mechanisms for feedback in the horizontal direction can more accurately display the displacement part of the pipeline, and the displacement detection mechanisms are arranged on the left side of the inner wall of the channel, the right side of the inner wall of the channel, the bottom of the inner wall of the channel and the bottom of the cover body, so that the displacement of the pipeline in multiple directions can be detected; therefore, the specific displacement direction of the pipeline can be obtained more accurately, for example, the elastic assemblies on the right side and the bottom of a certain part of the corresponding pipeline are compressed and shortened, and it can be determined that the part of the pipeline displaces towards the lower right according to feedback of the displacement detection mechanism; in general, by using the device for detecting the construction quality of the underground pipeline, the accuracy of detecting the displacement of the pipeline can be higher, and the displacement in multiple directions can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection devices, and particularly relates to a device for detecting the construction quality of underground pipelines. Background Art

[0002] Laying pipelines underground has many advantages, such as not affecting various facilities on the ground, saving above-ground space, reducing natural and man-made damage, enabling pipeline insulation, and making the stress on each part of the pipeline uniform. Especially in cities with a high density, the laying of underground pipelines is indispensable. It can bring great convenience to water supply, drainage, gas, heat, electricity, communication, radio and television, industry, etc. within the urban area, and is an important infrastructure and "lifeline" for ensuring the operation of the city.

[0003] Due to the influence of factors such as crustal movement, plate movement, and road surface collapse, some parts of the pipelines buried underground will also be affected accordingly and undergo displacement. Once the displacement of a certain part of the pipeline is too large, it may lead to pipeline damage or even fracture, resulting in dangerous accidents. Therefore, relevant departments will use underground pipeline quality detection equipment to regularly detect underground pipelines for timely repair or replacement, so as to prevent danger as much as possible.

[0004] Chinese Utility Model Patent CN202223013014.6 discloses an underground comprehensive pipeline displacement detection device, including the ground surface. An installation groove is provided on the ground surface, an installation box is provided in the installation groove, a groove is provided at the top of the installation box, a cavity is provided at the bottom of the groove, an inspection cover is provided at the top of the cavity, a displacement detection structure is provided in the cavity, a top cover is fixedly provided at the top of the installation box, and a limiting block is fixedly provided at the bottom of the top cover. The above patent has the following problems in actual use. A cross bar is provided in the displacement detection mechanism of the above device, and the cross bar has a certain length, which results in the displacement shown by the displacement detection mechanism being the displacement of a certain section of the pipeline and unable to specifically show which part of the pipeline the displacement is, with relatively low accuracy. In addition, the above device can only measure the settlement displacement of the pipeline. However, under the influence of factors such as crustal movement, the displacement direction of the pipeline is variable, so the specific displacement direction of the pipeline cannot be accurately obtained. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] To solve the above problems, the utility model provides a device for detecting the construction quality of underground pipelines, which has higher accuracy in detecting pipeline displacement and can detect displacements in multiple directions.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions:

[0009] A device for detecting the construction quality of underground pipelines, including a channel that is substantially U-shaped, the channel is buried underground, the top of the channel is detachably connected with a plurality of cover bodies, a plurality of linearly arranged clamping mechanisms are arranged inside the channel, the plurality of clamping mechanisms are arranged in one-to-one correspondence with the plurality of cover bodies, an elastic component is connected between the left side of the clamping mechanism and the inner wall of the corresponding channel, between the right side of the clamping mechanism and the inner wall of the corresponding channel, and between the bottom of the clamping mechanism and the inner wall of the corresponding channel, for fixing the relative positions of the clamping mechanism and the channel, and a displacement detection mechanism is arranged between the left side of the clamping mechanism and the inner wall of the corresponding channel, between the right side of the clamping mechanism and the inner wall of the corresponding channel, between the bottom of the clamping mechanism and the inner wall of the corresponding channel, and between the top of the clamping mechanism and the bottom of the cover body, for detecting the position and direction of the pipeline displacement.

[0010] Preferably, a positioning groove is arranged on the cover body, and a plurality of positioning blocks corresponding to the positioning groove are arranged on the channel to prevent the cover body from being misaligned.

[0011] Preferably, the clamping mechanism includes:

[0012] A mounting frame, a through hole is arranged in the middle of the mounting frame, and the axial direction of the through hole is parallel to the extending direction of the channel;

[0013] An upper clamping block, the upper clamping block is located in the through hole;

[0014] A lower clamping block, the lower clamping block is fixedly connected to the bottom of the through hole;

[0015] An adjusting component, the adjusting component is arranged on the mounting frame and is drivingly connected to the upper clamping block, for adjusting the distance between the upper clamping block and the lower clamping block, so as to clamp and fix the pipeline.

[0016] Preferably, opposite V-shaped grooves are arranged on the bottom of the upper clamping block and the top of the lower clamping block, and a buffer pad is arranged on the clamping surface of the V-shaped groove.

[0017] Preferably, a guiding hole and a first threaded hole are arranged on the mounting frame, the axial directions of the guiding hole and the first threaded hole are both perpendicular to the plane where the lower clamping block is located, and the adjusting component includes:

[0018] A plate body;

[0019] A guiding rod, the guiding rod is slidably connected in the guiding hole, the top of the guiding rod is fixedly connected to the plate body, and the bottom is fixedly connected to the upper clamping block;

[0020] A threaded rod which is engaged in the first threaded hole. The top of the threaded rod is rotatably connected to the plate body, the bottom is rotatably connected to the upper clamping block, and a turning handle is fixedly connected to the middle. By turning the turning handle, the distance between the upper clamping block and the lower clamping block can be adjusted to clamp or loosen the pipeline.

[0021] Preferably, the elastic component includes a plurality of springs. One end of each spring is connected to the mounting bracket, and the opposite end is connected to a fixing member. The end of the fixing member away from the spring is connected to the inner wall of the channel. The plurality of springs on the same elastic component are evenly distributed so that the part of the mounting bracket connected to the elastic component is evenly stressed.

[0022] Preferably, the displacement detection mechanism includes:

[0023] Two first displacement detection components. One of the first displacement detection components is arranged on the left side of the inner wall of the channel, and the other first displacement detection component is arranged between the right side of the clamping mechanism and the corresponding inner wall of the channel;

[0024] Two telescopic second displacement detection components. One of the second displacement detection components is arranged at the bottom of the inner wall of the channel, and the other second displacement detection component is arranged at the bottom of the cover body. By adjusting the length of the second displacement detection component, the distance between the second displacement detection component and the clamping mechanism and the distance between the first displacement detection component and the clamping mechanism can be made equal;

[0025] At one end of the clamping mechanism close to the first displacement detection component and at one end of the clamping mechanism close to the second displacement detection component, first conductive members are provided. At one end of the first displacement detection component close to the clamping mechanism and at one end of the second displacement detection component close to the clamping mechanism, second conductive members are provided. In the natural state, there is a spacing between the first conductive member and the corresponding second conductive member. After the first conductive member abuts against the corresponding second conductive member, a complete circuit can be formed so that the displacement detection component can work normally.

[0026] Preferably, the first displacement detection component includes:

[0027] A first mounting plate which is fixedly connected to the inner wall of the channel. On the side of the mounting plate away from the inner wall of the channel, a first power storage module and a first signal transmission module are provided;

[0028] The first conductive column, one end of the first conductive column is fixedly connected to the first mounting plate, and the other end of the first conductive column is fixedly connected to the second conductive member. The first conductive column, the corresponding second conductive member, and the first signal transmission module are all electrically connected to the first power storage module. When the second conductive member corresponding to the first conductive column abuts against the first conductive member, the first power storage module can supply power to the first signal transmission module, so that the corresponding first signal transmission module emits a signal.

[0029] Preferably, the second displacement detection assembly includes:

[0030] A second mounting plate, the second mounting plate is fixedly connected to the bottom of the channel or the bottom of the cover body, and a second power storage module and a second signal transmission module are provided on the mounting plate;

[0031] A second conductive column, a second threaded hole is provided in the middle of the second conductive column, a third conductive column is engaged in the second threaded hole, one end of the third conductive column close to the mounting frame is fixedly connected to the second conductive member, the second conductive column, the third conductive column, the corresponding second conductive member, and the second signal transmission module are all electrically connected to the second power storage module. When the second conductive member corresponding to the third conductive column abuts against the first conductive member, the second power storage module can supply power to the second signal transmission module, so that the corresponding second signal transmission module emits a signal.

[0032] Preferably, the size of the first conductive member is larger than the size of the second conductive member.

[0033] (III) Beneficial effects

[0034] Compared with the prior art, the beneficial effects of the present utility model are:

[0035] During actual use, since only the clamping mechanism of the device in this application abuts against the pipeline, the contact part between the device and the pipeline in this application can be regarded as a point. When the pipeline undergoes displacement, the multiple displacement detection mechanisms that provide feedback in the horizontal direction can more accurately display the part where the pipeline undergoes displacement. Also, since displacement detection mechanisms are provided on the left side of the inner wall of the channel, the right side of the inner wall of the channel, the bottom of the inner wall of the channel, and the bottom of the cover body, the displacement of the pipeline in multiple directions can be detected, thereby more accurately determining the specific direction of the pipeline displacement. For example, if the elastic components on the right side and bottom corresponding to a certain part of the pipeline are compressed and shortened, it can be determined from the feedback of the displacement detection mechanism that this part of the pipeline is displaced towards the lower right; in addition, since the multiple clamping mechanisms correspond to the multiple cover bodies one by one, during the maintenance process, the cover body at the displacement part of the pipeline can also be removed specifically, which is more convenient and fast; generally speaking, by using the device for detecting the construction quality of underground pipelines, the accuracy of detecting pipeline displacement can be higher, and the displacement in multiple directions can be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0037] Figure 1 A perspective view of the device for detecting the construction quality of underground pipelines according to the present invention is shown;

[0038] Figure 2 It shows Figure 1 A side view of the device for detecting the construction quality of underground pipelines in

[0039] Figure 3 It shows Figure 1 A perspective view of the device for detecting the construction quality of underground pipelines in after removing the cover body;

[0040] Figure 4 It shows Figure 1 A perspective view of the cover body in

[0041] Figure 5 It shows Figure 1 A perspective view of the clamping mechanism in

[0042] Figure 6 It shows Figure 1 A perspective view of the clamping mechanism from another angle in

[0043] Figure 7 It shows Figure 1 A perspective view of the first displacement detection component in

[0044] Figure 8 It shows Figure 1Stereogram of the second displacement detection component

[0045] In the figure: 1, channel; 2, cover body; 3, clamping mechanism; 31, mounting frame; 311, through hole; 32, upper clamping block; 33, lower clamping block; 34, adjusting component; 341, plate body; 342, guide rod; 343, threaded rod; 344, turning handle; 345, guide hole; 346, first threaded hole; 35, V-shaped groove; 36, buffer pad; 4, elastic component; 41, spring; 42, fixing piece; 5, displacement detection component; 51, first displacement detection component; 511, first mounting plate; 512, first conductive column; 513, first power storage module; 514, first signal transmission module; 52, second displacement detection component; 521, second mounting plate; 522, second conductive column; 523, second power storage module; 524, second signal transmission module; 525, second threaded hole; 526, third conductive column; 53, first conductive piece; 54, second conductive piece; 6, positioning groove; 7, positioning block. Specific embodiments

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Refer to the attached Figure 1 and the attached Figure 3 and the attached Figure 4 In the embodiments of the present invention, a device for detecting the construction quality of underground pipelines is disclosed, including a channel 1 that is basically U-shaped and buried underground. A plurality of cover bodies 2 are detachably connected to the top of the channel 1. A plurality of linearly arranged clamping mechanisms 3 are provided inside the channel 1. The plurality of clamping mechanisms 3 are arranged in one-to-one correspondence with the plurality of cover bodies 2. Elastic components 4 are connected between the left side of the clamping mechanism 3 and the inner wall of the corresponding channel 1, between the right side of the clamping mechanism 3 and the inner wall of the corresponding channel 1, and between the bottom of the clamping mechanism 3 and the inner wall of the corresponding channel 1, for fixing the relative positions of the clamping mechanism 3 and the channel 1. Displacement detection mechanisms 5 are provided between the left side of the clamping mechanism 3 and the inner wall of the corresponding channel 1, between the right side of the clamping mechanism 3 and the inner wall of the corresponding channel 1, between the bottom of the clamping mechanism 3 and the inner wall of the corresponding channel 1, and between the top of the clamping mechanism 3 and the bottom of the cover body 2, for detecting the position and direction of the pipeline displacement.

[0048] In the actual use process, since only the clamping mechanism 3 in the device of the present application abuts against the pipeline, the contact part between the device in the present application and the pipeline can be regarded as a point. When the pipeline undergoes displacement, the multiple displacement detection mechanisms 5 that provide feedback in the horizontal direction can more accurately display the part where the pipeline undergoes displacement. Moreover, since the displacement detection mechanisms 5 are provided on the left inner wall, right inner wall, bottom inner wall of the channel 1, and the bottom of the cover body 2, the displacement of the pipeline in multiple directions can be detected, thereby more accurately determining the specific direction of the pipeline displacement. For example, if the elastic components 4 corresponding to the right side and bottom of a certain part of the pipeline are compressed and shortened, it can be determined according to the feedback of the displacement detection mechanism 5 that this part of the pipeline undergoes displacement towards the lower right; in addition, since the multiple clamping mechanisms 3 correspond to the multiple cover bodies 2 one by one, during the maintenance process, the cover body 2 at the displacement part of the pipeline can also be specifically removed, which is more convenient and fast; generally speaking, by using the device for detecting the construction quality of underground pipelines, the accuracy of detecting the pipeline displacement can be higher, and the displacement in multiple directions can be detected.

[0049] It should be noted that the displacement detection mentioned in the present application does not detect the specific value of the pipeline displacement, but whether the pipeline undergoes displacement beyond the safe range in a certain direction.

[0050] Refer to the appendix Figure 3 and the appendix Figure 4 In order to prevent the installation position of the cover body 2 on the channel 1 from changing back and forth, resulting in the cover body 2 being unable to accurately correspond to the clamping mechanism 3, the following design is carried out in this embodiment. Specifically, a positioning groove 6 is provided on the cover body 2, and multiple positioning blocks 7 corresponding to the positioning groove 6 are provided on the channel 1.

[0051] Through the design of the above structure, the positioning can be completed by inserting the positioning groove 6 on the cover body 2 and the positioning block 7 on the channel 1, so that the cover body 2 can be covered at a certain fixed position on the channel 1 each time, which is convenient and fast and can effectively prevent the cover body 2 from being misaligned.

[0052] Refer to the appendix Figure 2 、the appendix Figure 5 and the appendix Figure 6 Refer to the appendix

[0053] Through the design of the above structure, under the action of the adjusting component 34, the upper clamping block 32 in the through hole 311 in the middle of the mounting bracket 31 can be driven to move up and down, so as to move away from or close to the lower clamping block 33, thereby loosening or clamping the pipeline, which has the advantages of simple structure, reliable connection, convenient tightening and loosening operation, etc.

[0054] Refer to Appendix Figure 2 , Appendix Figure 5 and Appendix Figure 6 , further, since the outside of the pipeline is mostly circular, it is difficult to fix and lock it by clamping with two planes. To solve the above problems, the following design is carried out in this embodiment. Specifically, V-shaped grooves 35 are provided at the bottom of the upper clamping block 32 and the top of the lower clamping block 33, and buffer pads 36 are provided on the clamping surfaces of the V-shaped grooves 35.

[0055] Through the design of the above structure, when the clamping mechanism 3 in the present application clamps a cylindrical pipeline, four line contact parts can be generated, so as to firmly clamp the pipeline, and the setting of two opposite V-shaped grooves 35 can also firmly clamp pipelines of more shapes; in addition, since buffer pads 36 are provided on the clamping surfaces of the V-shaped grooves 35, certain protection can also be carried out during the process of clamping the pipeline, preventing the pipeline from being damaged due to excessive pressure.

[0056] Refer to Appendix Figure 2 , Appendix Figure 5 and Appendix Figure 6 , further, there are also various structures that can move a certain component. In order to more clearly understand the structure and working principle of the clamping mechanism 3, one of the structures of the adjusting component 34 is introduced in this embodiment. Specifically, a guide hole 345 and a first threaded hole 346 are provided on the mounting bracket 31. The axial direction of the guide hole 345 and the axial direction of the first threaded hole 346 are both perpendicular to the plane where the lower clamping block 33 is located. The adjusting component 34 includes a plate body 341, a guide rod 342, and a threaded rod 343; the guide rod 342 is slidably connected in the guide hole 345, the top of the guide rod 342 is fixedly connected to the plate body 341, and the bottom is fixedly connected to the upper clamping block 32; the threaded rod 343 is engaged in the first threaded hole 346, the top of the threaded rod 343 is rotatably connected to the plate body 341, the bottom is rotatably connected to the upper clamping block 32, and a turning handle 344 is fixedly connected to the middle.

[0057] Through the design of the above structure, when the turning handle 344 is rotated, the threaded rod 343 in the first threaded hole 346 will rotate accordingly and move under the guiding action of the guide rod 342 and the guide hole 345, so as to adjust the distance between the upper clamping block 32 and the lower clamping block 33 to clamp or loosen the pipeline.

[0058] Refer to Appendix Figure 2 , Appendix Figure 5And appendix Figure 6 , since the force exerted when the pipeline is displaced is usually large, an elastic component 4 is provided between the inner wall of the channel 2 and the clamping component 3 in this application to prevent the pipeline from being damaged by extrusion. In order to make the force on the part where the clamping mechanism 3 is connected to the elastic component 4 uniform, the following design is carried out in this embodiment. Specifically, the elastic component 4 includes a plurality of springs 41. One end of the spring 41 is connected to the mounting frame 31, and the opposite end is connected to the fixing part 42. The end of the fixing part 42 away from the spring 41 is connected to the inner wall of the channel 1, and the plurality of springs 41 on the same elastic component 4 are evenly distributed.

[0059] Furthermore, the connection method between the fixing part 42 and the inner wall of the channel 1 is not limited in this application and can be flexibly selected according to actual needs, such as welding, threaded connection, etc. In this embodiment, the bonding method is selected, which is convenient and fast.

[0060] Refer to appendix Figure 2 , appendix Figure 5 - appendix Figure 8 , after the pipeline is installed, due to the influence of its own weight, a vertically downward force will be generated, resulting in different distances between the bottom of the clamping mechanism 3 and the bottom of the channel 1, and between the top of the clamping mechanism 3 and the bottom of the cover body 2, thus causing errors in the measurement of whether the pipeline displacement exceeds the range. To solve the above problems, the following design is carried out in this embodiment. Specifically, the displacement detection mechanism 5 includes two first displacement detection components 51 and two telescopic second displacement detection components 52. One of the first displacement detection components 51 is arranged on the left side of the inner wall of the channel 1, and the other first displacement detection component 51 is arranged between the right side of the clamping mechanism 3 and the corresponding inner wall of the channel 1; one of the second displacement detection components 52 is arranged at the bottom of the inner wall of the channel 1, and the other second displacement detection component 52 is arranged at the bottom of the cover body 2. By adjusting the length of the second displacement detection component 52, the distance between the second displacement detection component 52 and the clamping mechanism 3 and the distance between the first displacement detection component 51 and the clamping mechanism 3 can be made equal; both ends of the clamping mechanism 3 close to the first displacement detection component 51 and both ends of the clamping mechanism 3 close to the second displacement detection component 52 are provided with first conductive parts 53, and both ends of the first displacement detection component 51 close to the clamping mechanism 3 and both ends of the second displacement detection component 52 close to the clamping mechanism 3 are provided with second conductive parts 54. In the natural state, there is a gap between the first conductive part 53 and the corresponding second conductive part 54, and a complete circuit can be formed after the first conductive part 53 abuts against the corresponding second conductive part 54, so that the displacement detection component can work normally.

[0061] Through the design of the above structure, the distance between the first conductive member 53 and the corresponding second conductive member 54 in the vertical direction can be adjusted, so that after the displacement of the pipeline in the above four directions exceeds this distance, the Compositae can send a signal through the displacement detection mechanism 5 for reminder or alarm.

[0062] Refer to the appendix Figure 2 and the appendix Figure 7 For the purpose of meeting the functions in the above solution, in this embodiment, the first displacement detection component 51 is designed as follows. Specifically, the first displacement detection component 51 includes a first mounting plate 511 and a first conductive column 512. The mounting plate is fixedly connected to the inner wall of the channel 1. On the side of the mounting plate away from the inner wall of the channel 1, there are a first power storage module 513 and a first signal transmission module 514; one end of the first conductive column 512 is fixedly connected to the first mounting plate 511, and the other end of the first conductive column 512 is fixedly connected to the second conductive member 54. The first conductive column 512, the corresponding second conductive member 54, and the first signal transmission module 514 are all electrically connected to the first power storage module 513. When the second conductive member 54 corresponding to the first conductive column 512 abuts against the first conductive member 53, the first power storage module 513 can supply power to the first signal transmission module 514 to enable the corresponding first signal transmission module 514 to send a signal.

[0063] Refer to the appendix Figure 2 and the appendix Figure 8 For the purpose of meeting the functions in the above solution, in this embodiment, the second displacement detection component 52 is designed as follows. Specifically, the second displacement detection component 52 includes a second mounting plate 521 and a second conductive column 522. The second mounting plate 521 is fixedly connected to the bottom of the channel 1 or the bottom of the cover 2. There are a second power storage module 523 and a second signal transmission module 524 on the mounting plate; a second threaded hole 525 is provided in the middle of the second conductive column 522, and a third conductive column 526 is engaged in the second threaded hole 525. One end of the third conductive column 526 close to the mounting bracket 31 is fixedly connected to the second conductive member 54. The second conductive column 522, the third conductive column 526, the corresponding second conductive member 54, and the second signal transmission module 524 are all electrically connected to the second power storage module 523. When the second conductive member 54 corresponding to the third conductive column 526 abuts against the first conductive member 53, the second power storage module 523 can supply power to the second signal transmission module 524 to enable the corresponding second signal transmission module 524 to send a signal.

[0064] Since the pipeline will displace obliquely, therefore, in order to enable the first conductive member 53 and the second conductive member 54 to still abut against each other after the pipeline displaces, that is, not to be misaligned, which may cause the pipeline displacement to not be detected, in this embodiment, the following design is made. Specifically, the size of the first conductive member 53 is larger than the size of the second conductive member 54.

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without further statement, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of the present application.

[0067] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the construction quality of underground pipelines, characterized in that, It includes a channel that is substantially U-shaped and buried underground. A plurality of covers are detachably connected to the top of the channel. A plurality of clamping mechanisms arranged linearly are provided inside the channel. The plurality of clamping mechanisms are arranged in one-to-one correspondence with the plurality of covers. Elastic components are connected between the left side of the clamping mechanism and the inner wall of the corresponding channel, between the right side of the clamping mechanism and the inner wall of the corresponding channel, and between the bottom of the clamping mechanism and the inner wall of the corresponding channel, for fixing the relative positions of the clamping mechanism and the channel. Displacement detection mechanisms are provided between the left side of the clamping mechanism and the inner wall of the corresponding channel, between the right side of the clamping mechanism and the inner wall of the corresponding channel, between the bottom of the clamping mechanism and the inner wall of the corresponding channel, and between the top of the clamping mechanism and the bottom of the cover, for detecting the position and direction of pipeline displacement.

2. The device for detecting the construction quality of underground pipelines according to claim 1, wherein, Positioning grooves are provided on the cover, and a plurality of positioning blocks corresponding to the positioning grooves are provided on the channel to prevent the cover from being misaligned.

3. The device for detecting the construction quality of underground pipelines according to claim 1, characterized in that, The clamping mechanism includes: A mounting frame, with a through hole in the middle of the mounting frame, and the axial direction of the through hole is parallel to the extending direction of the channel; An upper clamping block located in the through hole; A lower clamping block fixedly connected to the bottom of the through hole; An adjusting component provided on the mounting frame and drivingly connected to the upper clamping block, for adjusting the distance between the upper clamping block and the lower clamping block, so as to clamp and fix the pipeline.

4. The device for detecting the construction quality of underground pipelines according to claim 3, wherein V-shaped grooves are provided on the bottom of the upper clamping block and the top of the lower clamping block, and buffer pads are provided on the clamping surfaces of the V-shaped grooves.

5. The device for detecting the construction quality of underground pipelines according to claim 3, characterized in that, Guide holes and first threaded holes are provided on the mounting frame. The axial directions of the guide holes and the first threaded holes are both perpendicular to the plane where the lower clamping block is located. The adjusting component includes: A plate body; A guide rod slidably connected in the guide hole, with the top of the guide rod fixedly connected to the plate body and the bottom fixedly connected to the upper clamping block; A threaded rod engaged in the first threaded hole, with the top of the threaded rod rotatably connected to the plate body, the bottom rotatably connected to the upper clamping block, and a turning handle fixedly connected to the middle. By turning the turning handle, the distance between the upper clamping block and the lower clamping block can be adjusted to clamp or loosen the pipeline.

6. The device for detecting the construction quality of underground pipelines according to claim 5, characterized in that, The elastic component includes a plurality of springs. One end of the spring is connected to the mounting frame, and the opposite end is connected to a fixing piece. The end of the fixing piece away from the spring is connected to the inner wall of the channel. The plurality of springs on the same elastic component are evenly distributed, so that the part of the mounting frame connected to the elastic component is evenly stressed.

7. The device for detecting the construction quality of underground pipelines according to claim 6, wherein The displacement detection mechanism includes: Two first displacement detection components, one of the first displacement detection components is provided on the left side of the inner wall of the channel, and the other first displacement detection component is provided between the right side of the clamping mechanism and the inner wall of the corresponding channel; Two telescopic second displacement detection components, one of the second displacement detection components is arranged at the bottom of the inner wall of the channel, and the other second displacement detection component is arranged at the bottom of the cover body. By adjusting the length of the second displacement detection component, the distance between the second displacement detection component and the clamping mechanism and the distance between the first displacement detection component and the clamping mechanism can be made equal; At one end of the clamping mechanism close to the first displacement detection component and at one end of the clamping mechanism close to the second displacement detection component, first conductive members are provided. At one end of the first displacement detection component close to the clamping mechanism and at one end of the second displacement detection component close to the clamping mechanism, second conductive members are provided. In the natural state, there is a gap between the first conductive member and the corresponding second conductive member. After the first conductive member abuts against the corresponding second conductive member, a complete circuit can be formed so that the displacement detection component can work normally.

8. The device for detecting the construction quality of underground pipelines according to claim 7, characterized in that, The first displacement detection component includes: A first mounting plate, the mounting plate is fixedly connected to the inner wall of the channel, and a first power storage module and a first signal transmission module are provided on the side of the mounting plate away from the inner wall of the channel; A first conductive column, one end of the first conductive column is fixedly connected to the first mounting plate, the other end of the first conductive column is fixedly connected to the second conductive member, the first conductive column, the corresponding second conductive member and the first signal transmission module are all electrically connected to the first power storage module. When the second conductive member corresponding to the first conductive column abuts against the first conductive member, the first power storage module can supply power to the first signal transmission module so that the corresponding first signal transmission module emits a signal.

9. The device for detecting the construction quality of underground pipelines according to claim 7, characterized in that, The second displacement detection component includes: A second mounting plate, the second mounting plate is fixedly connected to the bottom of the channel or the bottom of the cover body, and a second power storage module and a second signal transmission module are provided on the mounting plate; A second conductive column, a second threaded hole is provided in the middle of the second conductive column, a third conductive column is engaged in the second threaded hole, one end of the third conductive column close to the mounting bracket is fixedly connected to the second conductive member, the second conductive column, the third conductive column, the corresponding second conductive member and the second signal transmission module are all electrically connected to the second power storage module. When the second conductive member corresponding to the third conductive column abuts against the first conductive member, the second power storage module can supply power to the second signal transmission module so that the corresponding second signal transmission module emits a signal.

10. The device for detecting the construction quality of underground pipelines according to claim 7, characterized in that, The size of the first conductive member is larger than the size of the second conductive member.

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