Underground pipeline monitoring device

Abstract

The invention relates to an underground pipeline monitoring device, which belongs to the technical field of monitoring and comprises a shell, a supporting plate is arranged in the shell, a first graduated scale is fixedly connected to the upper surface of the supporting plate in the length direction of the supporting plate, and a first sliding groove is formed in the lower surface of the supporting plate in the length direction of the supporting plate. The supporting plate is slidably connected with a first sliding block in the first sliding groove in the length direction of the first sliding groove, a moving groove is formed in the upper surface of the supporting plate in the length direction of the supporting plate, the moving groove communicates with the first sliding groove, a supporting rod is arranged above the supporting plate, and the bottom end of the supporting rod extends into the moving groove to be fixedly connected with the first sliding block. A first pointer is fixedly connected to the upper end of the supporting rod, a sliding rod is connected to the lower surface of the first sliding block, an avoiding opening is formed in the bottom wall of the shell in a penetrating mode, the end, away from the first sliding block, of the sliding rod penetrates through the avoiding opening, a clamping assembly used for clamping an underground pipeline is arranged below the shell, and the end, located outside the shell, of the sliding rod is connected with the clamping assembly. The method has the effect of improving the accuracy of monitoring the underground pipeline.

Description

Technical Field

[0001] The present application relates to the technical field of monitoring, and in particular to an underground pipeline monitoring device. Background Art

[0002] With the continuous construction and development of cities, various tall buildings and deep foundation pit projects are increasing, which will inevitably affect the underground pipelines of surrounding roads. Once an accident occurs in the pipeline, it will bring many inconveniences to people's lives. Therefore, during the construction process, the underground pipelines within the construction impact range are monitored, the construction is guided in a timely manner, and corresponding preventive measures are taken to ensure the safety of the project and pipelines.

[0003] When monitoring underground pipelines, spikes are usually laid above the pipelines to be monitored and close to the ground. The deformation of the pipelines is recorded by monitoring the settlement or uplift of the spikes, so as to guide construction workers to carry out construction and ensure the safety of the pipelines during the project.

[0004] Regarding the above-mentioned related technologies, the spikes reflect the deformation of the soil. Due to the difference in elastic modulus between the soil and the pipeline, there is an error in the deformation of the two, and they cannot truly reflect the deformation of the pipeline, resulting in a defect of low accuracy in monitoring underground pipelines. Summary of the invention

[0005] In order to improve the accuracy of monitoring underground pipelines, the present application provides an underground pipeline monitoring device.

[0006] The underground pipeline monitoring device provided in this application adopts the following technical solution: The cam is provided with a first sliding groove, and the lower surface of the support plate is provided with a first sliding groove. The support plate is slidably connected to the first sliding groove in the length direction of the first sliding groove. The upper surface of the support plate is provided with a moving groove along the length direction of the first sliding groove. The moving groove and the first sliding groove are connected. A support rod is provided above the support plate, the support rod and the support plate are perpendicular, the bottom end of the support rod extends into the moving groove and is fixedly connected to the first sliding groove, the upper end of the support rod is fixedly connected to the first pointer, the lower surface of the first sliding groove is connected to the sliding rod, the length direction of the sliding rod is perpendicular to the support plate, and an avoidance opening is opened through the bottom wall of the shell, the length direction of the avoidance opening is parallel to the support plate, the sliding rod passes through the avoidance opening at one end away from the first sliding rod, and a clamping assembly for clamping the underground pipeline is provided under the shell, and the sliding rod is connected to the clamping assembly at one end outside the shell.

[0007] By adopting the above technical scheme, the soil above the underground pipeline is first dug up, the shell is placed above the underground pipeline and the surrounding soil to fix it, and then the clamping assembly clamps and fixes the underground pipeline. When the underground pipeline is deformed, the clamping assembly will be driven to move, the clamping assembly will drive the slide bar to move, the slide bar will drive the first slide bar to move, the first slide bar will drive the support rod to move, the support rod will drive the pointer to move, the pointer points to a value on the first scale that changes, the staff will record the value, and then judge the underground pipeline based on the value, and then use it to direct the staff to construct, so as to avoid causing deformation of the underground pipeline again, making the underground pipeline not easy to be damaged, and monitoring by direct contact with the underground pipeline, so that the deformation of the land is not easy to affect the monitoring data, thereby improving the accuracy of monitoring the underground pipeline.

[0008] Optionally, a connecting plate is provided at one end of the sliding rod outside the shell, the connecting plate is parallel to the support plate, the connecting plate is connected to the sliding rod, the clamping assembly includes a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are parallel to each other, both the first clamping plate and the second clamping plate are connected to the connecting plate, and a moving assembly for driving the first clamping plate and the first clamping plate to move is provided at the connecting plate.

[0009] By adopting the above technical solution, when the first clamp and the second clamp move downward, the underground pipeline is located between the first clamp and the second clamp, and then the first clamp and the second clamp are driven to move in relative directions by the moving assembly, and the first clamp and the second clamp complete the clamping and fixing of the underground pipeline, so that the clamping assembly realizes the clamping function of the underground pipeline.

[0010] Optionally, a second slide groove is opened on the lower surface of the connecting plate along its own length direction, and the connecting plate is slidably connected with a second slider and a third slider in the second slide groove along the length direction of the second slide groove, the lower surface of the second slider is fixedly connected to the first clamping plate, and the lower surface of the third slider is fixedly connected to the second clamping plate, the moving assembly includes a bidirectional screw rod and a first motor, the bidirectional screw rod is arranged in the second slide groove along the length direction of the second slide groove, the two ends of the bidirectional screw rod are respectively rotatably connected to the opposite side walls of the second slide groove, the bidirectional screw rod passes through the second slider and the third slider, the bidirectional screw rod and both are threadedly connected, the first motor is fixedly connected to the side wall of the connecting plate, and the output shaft of the first motor passes through the side wall of the second slide groove and is fixedly connected to one end of the bidirectional screw rod.

[0011] By adopting the above technical solution, the first motor is started, and the first motor drives the bidirectional screw to rotate. Under the guidance of the second slide groove, the bidirectional screw drives the second slider and the third slider to move in opposite directions, the second slider drives the first clamping plate to move, and the third slider drives the second clamping plate to move, so that the moving component realizes the function of driving the first clamping plate and the second clamping plate to move.

[0012] Optionally, a bearing plate is arranged above the connecting plate, the bearing plate and the connecting plate are parallel, the end of the sliding rod away from the first sliding block is connected and fixed to the upper surface of the bearing plate, and a moving component that drives the connecting plate to move up and down is arranged on the lower surface of the bearing plate.

[0013] By adopting the above technical solution, after the shell is fixed, the connecting plate is driven downward by the motion component, so that the first clamping plate and the second clamping plate can extend to the underground pipeline, thereby facilitating the up and down movement of the first clamping plate and the second clamping plate.

[0014] Optionally, the motion component includes a threaded sleeve and a screw, the length direction of the threaded sleeve is perpendicular to the load-bearing plate, the upper end of the threaded sleeve is rotatably connected to the lower surface of the load-bearing plate, the length direction of the screw is parallel to the threaded sleeve, the bottom end of the screw is fixedly connected to the connecting plate, the upper end of the screw is threadedly connected to the threaded sleeve, and a telescopic rod is fixed between the load-bearing plate and the connecting plate. The telescopic rod is composed of multiple rod bodies that are socketed and the rod bodies are slidably connected.

[0015] By adopting the above technical solution, the threaded sleeve rotates, and under the guidance of the telescopic rod, the screw rod drives the connecting plate to move, and the connecting plate drives the first clamping plate and the second clamping plate to move, so that the motion component realizes the function of driving the connecting plate to move.

[0016] Optionally, the supporting plate is fixedly connected to the second motor, the output shaft of the second motor is fixedly connected to the first gear, the second gear is arranged at the threaded sleeve, the threaded sleeve passes through the second gear and is fixedly connected to the second gear, and the first gear and the second gear are meshed.

[0017] By adopting the above technical solution, the second motor is started, the second motor drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the threaded sleeve to rotate. The forward and reverse rotation of the second motor is used to realize the forward and reverse rotation of the screw sleeve. At the same time, there is no need for the staff to manually rotate the threaded sleeve, which provides convenience for the staff's work.

[0018] Optionally, a second scale is fixedly connected to the side wall of the shell, and the second scale is arranged in the vertical direction. A third sliding groove is opened on the opposite side walls of the shell along its own height direction. The shell is slidably connected with a fourth slider in the third sliding groove. The opposite ends of the support plate are respectively fixedly connected to the fourth sliders on both sides. A second pointer is fixedly connected to the upper side wall of the support plate, and the length direction of the second pointer is perpendicular to the support rod.

[0019] By adopting the above technical solution, when the underground pipeline moves upward or downward, the clamping assembly is driven to move, the clamping assembly drives the connecting plate to move, the connecting plate causes the slide bar to move up and down, the slide bar drives the support plate to move up and down, the support plate drives the fourth slide block to move in the third slide groove, and at the same time the support plate drives the second pointer to move, the second pointer indicates that the value on the second scale changes, the staff can provide construction guidance according to the value, so that it is not easy to cause damage to the underground pipeline during the later construction process.

[0020] Optionally, a fixed block is fixedly connected to the upper surface of the carrier plate, a slot is opened on the upper surface of the fixed block, the sliding rod and the slot are plug-in compatible, an auxiliary slot is opened on one side wall of the slot, the fixed block is slidably connected with a clamping block in the auxiliary slot, a pull rod is fixedly connected to a side wall of the clamping block away from the slot, the end of the pull rod away from the clamping block passes through the fixed block and the fixed block is slidably connected, a clamping slot is opened on the side wall of the bottom end of the sliding rod, and the clamping block and the clamping slot are plug-in compatible.

[0021] By adopting the above technical scheme, the carrier plate is moved toward the end of the sliding rod outside the shell, and the slot and the sliding rod are aligned at the same time. The sliding rod is interpolated in the slot, the card block and the card slot are aligned, and the pull rod is pushed toward the card slot. The pull rod drives the card block to move, and the card block is clamped and fixed to the sliding rod at the card slot, thereby achieving fixation between the sliding rod and the fixed block, and further achieving fixation between the carrier plate and the sliding rod. At the same time, when the equipment is finished using, the pull rod is pulled in the direction away from the fixed block, the pull rod drives the card block to move, the card block and the card slot are disengaged, and the clamping fixation with the sliding rod is released, and then the carrier plate is moved in the direction away from the sliding rod, and the two are stored separately, thereby providing convenience for storing the monitoring device.

[0022] Optionally, a pull plate is fixedly connected to one end of the pull rod away from the clamping block, the pull plate and the pull rod are perpendicular, a spring is fixedly arranged between the pull plate and the fixed block, and the spring is sleeved on the outside of the pull rod.

[0023] By adopting the above technical solution, the pull plate is pulled in the direction away from the fixed block, the pull plate drives the pull rod to move, the spring is stretched, the pull rod drives the card block to move, so that the slide bar can be inserted into the slot, and then the pull plate is released, the spring contracts, drives the pull plate to move in the direction of the fixed block, the pull plate drives the pull rod to move, the pull rod pushes the card block to move, and the card block is inserted into the card slot. At the same time, the spring makes the card block always receive a force in the direction of the slide rod, so that the card block is not easy to be separated from the card slot.

[0024] Optionally, an anti-slip layer is fixedly connected to opposite sides of the first clamping plate and the second clamping plate.

[0025] By adopting the above technical solution, after the first clamping plate and the second clamping plate clamp and fix the underground pipeline, the anti-slip layer abuts against the underground pipeline, and at the same time, the friction between the first clamping plate and the second clamping plate and the underground pipeline is increased, so that the first clamping plate and the second clamping plate are not easily separated from the underground pipeline.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: When the underground pipeline is clamped by the clamping assembly, when the underground pipeline deforms or moves, it drives the clamping assembly to move, the clamping assembly drives the sliding rod to move, the sliding rod causes the first pointer to move, and the value indicated by the first pointer changes. The staff guides the construction personnel according to the changed value, so that the underground pipeline is not easily damaged again. By directly removing the monitoring of the underground jurisdiction, the influence of the deformation of the land itself on the monitoring data is avoided, thereby improving the accuracy of monitoring the underground pipeline; The first clamping plate and the second clamping plate are driven to move by the moving assembly, and there is no need for the staff to manually move the two, thus providing convenience for the work of the staff; The connecting plate is driven to move by the moving assembly, and the connecting plate drives the clamping assembly to move. There is no need for the staff to manually move the connecting plate, thus providing convenience for the work of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of an underground pipeline monitoring device according to an embodiment of the present application; Figure 2 is a cross-sectional view showing the internal structure of the housing in the embodiment of the present application; Figure 3 is a cross-sectional structural view showing the moving assembly in the embodiment of the present application; Figure 4 is Figure 3 a partial enlarged schematic view of part A in

[0028] In the figure, 1. housing; 11. avoidance opening; 12. second scale; 13. third chute; 14. fourth slider; 2. support plate; 21. first scale; 22. first chute; 23. first slider; 24. moving groove; 25. support rod; 26. first pointer; 27. second pointer; 3. sliding rod; 31. card slot; 4. clamping assembly; 41. first clamping plate; 42. second clamping plate; 5. connecting plate; 51. second chute; 52. second slider; 53. third slider; 6. moving assembly; 61. bidirectional lead screw; 62. first motor; 7. bearing plate; 71. telescopic rod; 72. second motor; 73. first gear; 74. second gear; 75. fixing block; 751. slot; 752. auxiliary groove; 76. clamping block; 77. pull rod; 78. pull plate; 79. spring; 8. moving assembly; 81. threaded sleeve; 82. screw; 9. anti-slip layer. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1 - 4 This application is described in further detail.

[0030] The embodiment of the present application discloses an underground pipeline monitoring device.

[0031] refer to Figure 1 An underground pipeline monitoring device includes a shell 1, the upper end of the shell 1 is open, a slide bar 3 is arranged below the shell 1, the length direction of the slide bar 3 is perpendicular to the bottom wall of the shell 1, a bearing plate 7 is arranged at the bottom end of the slide bar 3, the bearing plate 7 is perpendicular to the length direction of the slide bar 3, a connecting plate 5 is arranged directly below the bearing plate 7, and the connecting plate 5 is parallel to the bearing plate 7.

[0032] refer to Figure 1 and Figure 2 The inner walls of the shell 1 on both sides are provided with third slide grooves 13 along the length direction thereof, and the shell 1 is slidably connected with a fourth slider 14 in the third slide groove 13. A support plate 2 is arranged in the shell 1, and the support plate 2 is parallel to the inner bottom wall of the shell 1. The opposite ends of the support plate 2 are respectively fixedly connected with the fourth sliders 14 on both sides, and a first slide groove 22 is provided on the lower surface of the support plate 2 along the length direction thereof, and the support plate 2 is slidably connected with a first slider 23 in the first slide groove 22. A moving groove 24 is provided on the upper surface of the support plate 2 along the length direction thereof, and the moving groove 24 is connected with the first slide groove 22, and the support plate 2 is slidably connected at the moving groove 24. There is a support rod 25, the length direction of the support rod 25 is perpendicular to the support plate 2, a first pointer 26 is fixedly connected to the side wall of the upper end of the support rod 25, the length direction of the first pointer 26 is perpendicular to the support rod 25, a first scale 21 is fixedly connected to the upper surface of the support plate 2 along its own length direction, the first pointer 26 is above the first scale 21, the scale lines of the first scale 21 are on the upper surface of the first scale 21, an avoidance opening 11 is penetrated through the bottom wall of the shell 1, the length direction of the avoidance opening 11 is parallel to the support plate 2, and the upper end of the slide rod 3 extends from the avoidance opening 11 to the first slider 23 and is fixedly connected to the first slider 23.

[0033] When the slide bar 3 moves along the length direction of the avoidance opening 11, it drives the first slide block 23 to move. When the first slide block 23 moves, it drives the support rod 25 to move. The support rod 25 drives the first pointer 26 to move and records the value pointed by the first pointer 26 on the first scale 21.

[0034] refer to Figure 2The side wall of the housing 1 is fixedly connected with the second scale 12 in the vertical direction, and the side wall of the support plate 2 is fixedly connected with the second pointer 27, and the length direction of the second pointer 27 is perpendicular to the second scale 12. When the support plate 2 moves, it drives the first slider 23 to move in the third slide groove 13, and drives the second pointer 27 to move at the same time, and records the value of the second pointer 27 on the second scale 12.

[0035] refer to Figure 2 and Figure 3 The bottom end of the slide rod 3 is connected and fixed to the bearing plate 7, a telescopic rod 71 is fixed between the bearing plate 7 and the connecting plate 5, two telescopic rods 71 ​​are provided, and the two telescopic rods 71 ​​are respectively arranged at the opposite ends of the bearing plate 7, the telescopic rod 71 is composed of a plurality of rod bodies connected in a sleeve manner, and the rod bodies are slidably connected to each other, and a motion component 8 that drives the connecting plate 5 to move up and down is provided on the lower surface of the bearing plate 7.

[0036] The motion component 8 includes a threaded sleeve 81 and a screw rod 82. The length direction of the threaded sleeve 81 is perpendicular to the supporting plate 7. The upper end of the threaded sleeve 81 is rotationally connected to the center of the lower surface of the supporting plate 7. The length direction of the screw rod 82 is perpendicular to the connecting plate 5. The bottom end of the screw rod 82 is fixedly connected to the center of the upper surface of the connecting plate 5. The upper end of the screw rod 82 is threadedly connected to the threaded sleeve 81.

[0037] The threaded sleeve 81 rotates, and under the guidance of the telescopic rod 71 , drives the screw rod 82 to move in the vertical direction, and the screw rod 82 drives the connecting plate 5 to move, so that the motion component 8 realizes the function of driving the connecting plate 5 to move.

[0038] refer to Figure 1 and Figure 3 A second motor 72 is fixedly connected to the lower surface of the carrying plate 7, and a first gear 73 is fixedly connected to the output shaft of the second motor 72. A second gear 74 is provided at the threaded sleeve 81. The second gear 74 and the threaded sleeve 81 are perpendicular. The threaded sleeve 81 passes through the second gear 74 and is fixedly connected to the second gear 74. The first gear 73 and the second gear 74 are meshed.

[0039] Start the second motor 72, the second motor 72 drives the first gear 73 to rotate, the first gear 73 drives the second gear 74 to rotate, and the second gear 74 drives the threaded sleeve 81 to rotate. The staff does not need to manually rotate the threaded sleeve 81, which provides convenience for the staff.

[0040] refer to Figure 1 and Figure 3A second slide groove 51 is provided on the lower surface of the connecting plate 5 along its length direction. The connecting plate 5 is slidably connected with a second slider 52 and a third slider 53 in the second slide groove 51 along its length direction. A moving component 6 is provided at the connecting plate 5 for driving the second slider 52 and the third slider 53 to move. The moving component 6 includes a bidirectional screw rod 61 and a first motor 62. The bidirectional screw rod 61 is arranged in the second slide groove 51 along the length direction of the connecting plate 5. The two ends of the bidirectional screw rod 61 are respectively rotatably connected to the two side walls opposite to the second slide groove 51. The bidirectional screw rod 61 penetrates the second slider 52 and the third slider 53, and the bidirectional screw rod 61 is threadedly connected to the two. The first motor 62 is arranged at one side wall of the connecting plate 5 and is fixedly connected to the connecting plate 5. The output shaft of the first motor 62 extends into the second slide groove 51 and is fixedly connected to one end of the bidirectional screw rod 61. A clamping component 4 for clamping underground pipelines is provided below the connecting plate 5.

[0041] The clamping assembly 4 includes a first clamping plate 41 and a second clamping plate 42. The length directions of the first clamping plate 41 and the second clamping plate 42 are parallel to each other. The first clamping plate 41 and the connecting plate 5 are perpendicular. The upper end of the first clamping plate 41 is fixedly connected to the second slider 52. The upper end of the second clamping plate 42 is fixedly connected to the third slider 53. The first clamping plate 41 and the second clamping plate 42 are fixedly connected to the opposite side along their own length direction with an anti-slip layer 9. In the embodiment of the present application, the anti-slip layer 9 is made of rubber material.

[0042] Move the connecting plate 5 so that the underground pipeline is between the first clamping plate 41 and the second clamping plate 42, start the first motor 62, and the first motor 62 drives the bidirectional screw rod 61 to rotate. Under the guidance of the second slide groove 51, the bidirectional screw rod 61 drives the second slider 52 and the third slider 53 to move in relative directions. The second slider 52 drives the first clamping plate 41 to move, and the third slider 53 drives the second clamping plate 42 to move. The first clamping plate 41 and the second clamping plate 42 clamp and fix the underground pipeline. At the same time, the anti-slip layer 9 abuts against the outer wall of the underground pipeline, thereby increasing the friction between the first clamping plate 41 and the second clamping plate 42 and the underground pipeline.

[0043] refer to Figure 3 and Figure 4The upper surface of the carrying plate 7 is fixedly connected to a fixing block 75, and a slot 751 is opened on the upper surface of the fixing block 75. The slot 751 and the sliding rod 3 are plugged and adapted. The fixing block 75 is opened on a side wall of the slot 751. A clamping block 76 is slidably connected to the fixing block 75 in the auxiliary slot 752. The clamping block 76 is fixedly connected to a pull rod 77 on the side away from the slot 751. The pull rod 77 is parallel to the carrying plate 7, and the end of the pull rod 77 away from the clamping block 76 passes through the fixing block 75 and is slidably connected to the fixing block 75. The pull plate 78 is fixedly connected to the end of the pull rod 77 outside the fixing block 75. The pull plate 78 and the pull rod 77 are perpendicular. A spring 79 is fixedly provided between the pull plate 78 and the fixing block 75, and the spring 79 is sleeved outside the pull rod 77. A clamping slot 31 is opened on one side wall of the bottom end of the sliding rod 3, and the clamping block 76 and the clamping slot 31 are clamped and adapted.

[0044] The pull plate 78 is pulled in the direction away from the fixed block 75, and the pull plate 78 drives the pull rod 77 to move, and the pull rod 77 drives the card block 76 to move, and the card block 76 moves to the auxiliary groove 752, and the spring 79 is stretched, and the fixed block 75 is moved toward the slide rod 3, so that the slot 751 and the slide rod 3 are aligned, and the slide rod 3 is inserted into the slot 751, and the card block 76 and the card slot 31 are aligned, and the pull plate 78 is released, and the spring 79 is contracted, driving the pull plate 78 to move toward the fixed block 75, and the pull plate 78 drives the pull rod 77 to move, and the pull rod 77 drives the card block 76 to move, and the card block 76 moves to the card slot 31, so that the slide rod 3 and the fixed block 75 are snap-fitted and fixed.

[0045] The implementation principle of an underground pipeline monitoring device in an embodiment of the present application is as follows: first, a sinkhole is dug on the ground and the underground pipeline is exposed, and the shell 1 is fixed to the upper end of the sinkhole, and the connecting plate 5 is driven downward by the motion component 8, and then the clamping component 4 is driven to move by the moving component 6, and the clamping component 4 clamps and fixes the underground pipeline. When the underground pipeline is deformed or moved, the clamping component 4 is driven to move, and the clamping component 4 drives the connecting plate 5 to move, and the connecting plate 5 drives the sliding bar 3 to move, and the sliding bar 3 drives the first sliding block 23 to move, and the first sliding block 23 drives the supporting rod 25 to move, and the supporting rod 25 drives the first pointer 26 to move, and then the scale value of the first pointer 26 on the first scale 21 is recorded, and the value is analyzed, and finally the construction is guided according to the change of the value to avoid damage to the underground pipeline again. At the same time, the deformation of the land itself is not easy to affect the test data, thereby improving the accuracy of monitoring the underground pipeline.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An underground pipeline monitoring device, characterized in that: The invention comprises a shell (1), the upper end of the shell (1) is open, a support plate (2) is arranged in the shell (1), the support plate (2) is arranged horizontally, a first scale (21) is fixedly connected to the upper surface of the support plate (2) along its length direction, a first slide groove (22) is provided on the lower surface of the support plate (2) along its length, a first slider (23) is slidably connected to the support plate (2) in the first slide groove (22) along the length direction of the first slide groove (22), a movable groove (24) is provided on the upper surface of the support plate (2) along its length direction, the movable groove (24) and the first slide groove (22) are connected, a support rod (25) is arranged above the support plate (2), and the support rod (25) and the support rod (23) are connected to each other. The plate (2) is vertical, the bottom end of the support rod (25) extends into the movable groove (24) and is fixedly connected to the first slider (23), the upper end of the support rod (25) is fixedly connected to the first pointer (26), the lower surface of the first slider (23) is connected to the slide rod (3), the length direction of the slide rod (3) is vertical to the support plate (2), the bottom wall of the shell (1) is penetrated by a avoidance opening (11), the length direction of the avoidance opening (11) is parallel to the support plate (2), the end of the slide rod (3) away from the first slider (23) passes through the avoidance opening (11), and a clamping assembly (4) for clamping an underground pipeline is arranged below the shell (1), and the end of the slide rod (3) outside the shell (1) is connected to the clamping assembly (4).

2. An underground pipeline monitoring device according to claim 1, characterized in that: The sliding rod (3) is provided with a connecting plate (5) at one end outside the shell (1), the connecting plate (5) is parallel to the support plate (2), the connecting plate (5) and the sliding rod (3) are connected, the clamping assembly (4) comprises a first clamping plate (41) and a second clamping plate (42), the first clamping plate (41) and the second clamping plate (42) are parallel to each other, both the first clamping plate (41) and the second clamping plate (42) are connected to the connecting plate (5), and a moving assembly (6) for driving the first clamping plate (41) and the first clamping plate (41) to move is provided at the connecting plate (5).

3. An underground pipeline monitoring device according to claim 2, characterized in that: The lower surface of the connecting plate (5) is provided with a second slide groove (51) along its length direction. The connecting plate (5) is slidably connected with a second slider (52) and a third slider (53) in the second slide groove (51) along the length direction of the second slide groove (51). The lower surface of the second slider (52) is fixedly connected to the first clamping plate (41), and the lower surface of the third slider (53) is fixedly connected to the second clamping plate (42). The moving assembly (6) includes a bidirectional screw rod (61) and a first motor (62). The bidirectional screw rod (61) ) is arranged in the second slide groove (51) along the length direction of the second slide groove (51), the two ends of the bidirectional screw rod (61) are rotatably connected to the opposite side walls of the second slide groove (51), the bidirectional screw rod (61) passes through the second slider (52) and the third slider (53), the bidirectional screw rod (61) is threadedly connected to both, the first motor (62) is fixedly connected to the side wall of the connecting plate (5), and the output shaft of the first motor (62) passes through the side wall of the second slide groove (51) and is fixedly connected to one end of the bidirectional screw rod (61).

4. The underground pipeline monitoring device according to claim 2, characterized in that: A bearing plate (7) is arranged above the connecting plate (5), the bearing plate (7) and the connecting plate (5) are parallel, one end of the slide rod (3) away from the first slide block (23) is connected and fixed to the upper surface of the bearing plate (7), and a moving component (8) for driving the connecting plate (5) to move up and down is arranged on the lower surface of the bearing plate (7).

5. The underground pipeline monitoring device according to claim 4, characterized in that: The motion assembly (8) comprises a threaded sleeve (81) and a screw rod (82); the length direction of the threaded sleeve (81) is perpendicular to the bearing plate (7); the upper end of the threaded sleeve (81) is rotatably connected to the lower surface of the bearing plate (7); the length direction of the screw rod (82) is parallel to the threaded sleeve (81); the bottom end of the screw rod (82) is fixedly connected to the connecting plate (5); the upper end of the screw rod (82) is threadedly connected to the threaded sleeve (81); a telescopic rod (71) is fixedly arranged between the bearing plate (7) and the connecting plate (5); the telescopic rod (71) is composed of a plurality of rod bodies sleeved together, and the rod bodies are slidably connected to each other.

6. An underground pipeline monitoring device according to claim 5, characterized in that: The bearing plate (7) is fixedly connected to a second motor (72), an output shaft of the second motor (72) is fixedly connected to a first gear (73), a second gear (74) is arranged at the threaded sleeve (81), the threaded sleeve (81) passes through the second gear (74) and is fixedly connected to the second gear (74), and the first gear (73) and the second gear (74) are meshed.

7. The underground pipeline monitoring device according to claim 1, characterized in that: The side wall of the shell (1) is fixedly connected with a second scale (12), and the second scale (12) is arranged in the vertical direction. The opposite side walls of the shell (1) are provided with third slide grooves (13) along the height direction thereof. The shell (1) is slidably connected with a fourth slider (14) in the third slide groove (13). The opposite ends of the support plate (2) are respectively fixedly connected with the fourth sliders (14) on both sides. The upper side wall of the support plate (2) is fixedly connected with a second pointer (27), and the length direction of the second pointer (27) is perpendicular to the support rod (25).

8. The underground pipeline monitoring device according to claim 4, characterized in that: The upper surface of the carrier plate (7) is fixedly connected with a fixing block (75), the upper surface of the fixing block (75) is provided with a slot (751), the slide bar (3) and the slot (751) are plugged and matched, the fixing block (75) is provided with an auxiliary slot (752) on a side wall of the slot (751), the fixing block (75) is slidably connected with a clamping block (76) in the auxiliary slot (752), the clamping block (76) is fixedly connected with a pull rod (77) on a side wall away from the slot (751), the end of the pull rod (77) away from the clamping block (76) passes through the fixing block (75) and is slidably connected with the fixing block (75), the side wall at the bottom end of the slide bar (3) is provided with a clamping slot (31), the clamping block (76) and the clamping slot (31) are clamped and matched.

9. An underground pipeline monitoring device according to claim 8, characterized in that: The pull rod (77) is fixedly connected to a pull plate (78) at one end away from the clamping block (76), the pull plate (78) and the pull rod (77) are perpendicular, a spring (79) is fixedly arranged between the pull plate (78) and the fixed block (75), and the spring (79) is sleeved on the outside of the pull rod (77).

10. The underground pipeline monitoring device according to claim 2, characterized in that: The first clamping plate (41) and the second clamping plate (42) are both fixedly connected to an anti-slip layer (9) on opposite sides.

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