Underground pipeline deformation monitoring device

Abstract

The utility model relates to the technical field of underground pipeline monitoring, and discloses an underground pipeline deformation monitoring device which comprises a supporting plate, a supporting cylinder, a supporting frame, a first ball bearing, a connecting rod, a second ball bearing, a hoop, an extension spring and a tension sensor. In the using process, after the hoop clamps a pipeline, the extension spring is in a stretched state, and then the tension measured by the tension sensor is kept at a specific value. Due to the fact that both the first ball bearing and the second ball bearing can achieve variable-angle power transmission, the hoop can move in any direction relative to the supporting frame. And the support frame can move along the axial direction of the support cylinder, so that the extension spring can generate different deformation quantities when the pipeline settles, twists and moves back and forth. Therefore, the tension value detected by the tension sensor is changed, and whether the deformation of the pipeline exceeds a set range or not is judged. Monitoring can be carried out when the pipeline settles, twists and moves back and forth, and the device can be suitable for deformation detection under different conditions.

Description

Technical Field

[0001] The present application relates to the technical field of underground pipeline monitoring, for example, to an underground pipeline deformation monitoring device. Background Art

[0002] At present, the traditional method for monitoring the deformation of underground pipelines is to use excavation points to directly observe the settlement displacement of underground pipelines. The related technology (publication number: CN219200346U) discloses an underground pipeline deformation monitoring device, including a clamp and a detection box for being sleeved on the underground pipeline. The top of the clamp is fixedly connected to the first connecting rod, and a lifting plate is provided in the detection box. Slide blocks are symmetrically arranged on the left and right sides of the lifting plate. Slide blocks are symmetrically arranged on the left and right sides of the detection box. The slide blocks are slidably installed in the slide grooves. The center of the bottom of the lifting plate is connected to the second connecting rod, and the lower end of the second connecting rod passes through the through hole at the bottom of the detection box and is hinged to the first connecting rod. An annular pressure sensor is installed at the bottom of the detection box. A spring is arranged on the outside of the second connecting rod, the upper end of the spring is connected to the lifting plate, and the lower end thereof is connected to the pressure sensor. A shell is arranged on the top of the detection box, and a power supply, a wireless communication module, and a controller are installed in the shell. The controller is electrically connected to the pressure sensor, the power supply, and the wireless communication module respectively. A casing is also provided at the bottom of the detection box, and the hinge between the second connecting rod and the first connecting rod is located in the casing, and a porous anti-settling ring is arranged on the outside of the bottom of the detection box.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] The first connecting rod is fixedly connected to the top of the clamp, a lifting plate is arranged inside the detection box, the second connecting rod is connected to the center of the bottom of the lifting plate, and the lower end of the second connecting rod passes through the through hole at the bottom of the detection box and is hinged to the first connecting rod, which can solve the problem of damage to the device caused by horizontal displacement when the underground pipeline is torsionally deformed. However, when the pipeline is torsionally deformed and displaced forward and backward, it will still cause damage to the device.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiment provides an underground pipeline deformation monitoring device, which can be applied to deformation detection in different situations.

[0008] In some embodiments, an underground pipeline deformation monitoring device includes: a support plate; a support tube connected to the support plate, the axis of the support tube and the plane where the support plate is located are perpendicular to each other; a support frame slidably installed on the inner wall of the support tube along the axial direction of the support tube; a first ball bearing installed on the support frame; a connecting rod, one end of the connecting rod is connected to the ball of the first ball bearing; a second ball bearing, the ball of the second ball bearing is connected to the other end of the connecting rod; a clamp connected to the second ball bearing and located outside the support tube for clamping the pipeline; a tension spring located inside the support tube, one end of the tension spring is connected to the support plate; a tension sensor connected to the other end of the tension spring and installed on the support frame; wherein, when the clamp is clamped on the pipeline, the tension spring is in a stretched state.

[0009] Optionally, the support frame includes: a first side wall, the ball bearing and the tension sensor are both installed on the support frame, and along the thickness direction of the first side wall, the ball bearing and the tension sensor are located on both sides of the first side wall; a second side wall, connected to the first side wall, along the length direction of the first side wall, the second side wall is located on both sides of the first side wall, and the second side walls on both sides can be slidably installed on the support tube; wherein, the planes where the second side walls on both sides are located are parallel to each other, and perpendicular to the plane where the first side wall is located.

[0010] Optionally, it also includes: a guide rail, which is installed on the inner wall of the support tube along the axial direction of the support tube, and is located on both sides of the support tube along the radial direction of the support tube; a slider, which is slidably installed on the guide rails on both sides, and is respectively connected to the second side walls on both sides.

[0011] Optionally, it also includes: a limiting column connected to the inner wall of the support tube and respectively located at the end of each guide rail.

[0012] Optionally, the clamp includes: a first semi-annular buckle plate connected to the connecting rod; and a second semi-annular buckle plate opposite to the first semi-annular buckle plate; wherein one end of the first semi-annular buckle plate and one end of the second semi-annular buckle plate are rotatably connected, and the other end of the first semi-annular buckle plate and the other end of the second semi-annular buckle plate are detachably connected.

[0013] Optionally, the clamp further includes: a bolt passing through the first semi-annular buckle plate and the second semi-annular buckle plate; and a nut threadedly connected to the bolt.

[0014] Optionally, the clamp further includes: a connecting block, one end of which is rotatably connected to the first semi-annular buckle plate, and the other end of which is rotatably connected to the second semi-annular buckle plate.

[0015] Optionally, it also includes: a support rod, which is installed on the support plate and is evenly distributed around the support tube; a mounting plate, which is respectively connected to each of the support rods, and each of the mounting plates includes a mounting hole; wherein the planes where the multiple mounting plates are located overlap with each other and are parallel to the planes where the support plates are located.

[0016] Optionally, it further includes: a sealing cover connected to the end surface of the support tube, the sealing cover includes a through hole; wherein the connecting rod is movably arranged to pass through the through hole.

[0017] Optionally, it further comprises: a tension spring support, which is respectively installed at both ends of the tension spring, and the tension spring supports at both ends are respectively connected to the support plate and the tension sensor.

[0018] The underground pipeline deformation monitoring device provided by the embodiment of the present disclosure can achieve the following technical effects:

[0019] An underground pipeline deformation monitoring device provided by the embodiment of the present disclosure includes a support plate, a support tube, a support frame, a first ball bearing, a connecting rod, a second ball bearing, a clamp, a tension spring and a tension sensor. The support tube is connected to the support plate and is used to support and install a movable support frame. The support frame is slidably installed on the inner wall of the support tube along the axial direction of the support tube, and can make linear motion relative to the support tube. The two ends of the connecting rod are respectively connected to the balls of the first ball bearing and the second ball bearing, and the first ball bearing and the second ball bearing are respectively installed on the support frame and the clamp, so that the clamp can move in any direction relative to the support frame. The clamp is located outside the support tube and is used to clamp the pipeline and move with the movement of the pipeline. The tension spring is located inside the support tube and is used to provide force. One end of the tension spring is connected to the support plate, and the other end is connected to the tension sensor installed on the support frame. When the relative position of the support frame and the support plate changes, the tension spring can produce different deformation amounts, and the tension value generated by the tension spring can be detected by the tension sensor.

[0020] During use, when the clamp is clamped on the pipeline, the tension spring is in a stretched state, so that the tension measured by the tension sensor is maintained at a specific value. Since both the first ball bearing and the second ball bearing can realize variable-angle power transmission, the clamp can move in any direction relative to the support frame. And since the support frame can move along the axial direction of the support tube, when the pipeline settles, twists, and moves forward and backward, the tension spring can produce different deformation amounts. As a result, the tension value detected by the tension sensor changes, and then it can be judged whether the pipeline deformation exceeds the set range based on the change in tension. Monitoring can be performed when the pipeline settles, twists, and moves forward and backward, which can be applied to deformation detection in different situations.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a schematic cross-sectional structural diagram of an underground pipeline deformation monitoring device provided by an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 4 It is a schematic diagram of the main structure of an underground pipeline deformation monitoring device provided in an embodiment of the present disclosure.

[0027] Reference numerals:

[0028] 10: support plate; 20: support tube; 30: support frame; 31: first side wall; 32: second side wall; 40: first ball bearing; 50: connecting rod; 60: second ball bearing; 70: clamp; 71: first semi-annular buckle plate; 72: second semi-annular buckle plate; 73: connecting block; 80: tension spring; 90: tension sensor; 100: guide rail; 110: slider; 120: limit column; 130: support rod; 140: mounting plate; 150: sealing cover; 160: support for tension spring. DETAILED DESCRIPTION

[0029] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0030] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0031] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0033] Unless otherwise stated, the term "plurality" means two or more.

[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0035] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0037] Combination Figures 1 to 4As shown, the embodiment of the present disclosure provides an underground pipeline deformation monitoring device, including a support plate 10, a support tube 20, a support frame 30, a ball bearing, a connecting rod 50, a clamp 70, a tension spring 80 and a tension sensor 90. The support tube 20 is connected to the support plate 10, and the axis of the support tube 20 is perpendicular to the plane where the support plate 10 is located. The support frame 30 is slidably mounted on the inner wall of the support tube 20 along the axial direction of the support tube 20. The first ball bearing 40 is mounted on the support frame 30. One end of the connecting rod 50 is connected to the ball of the first ball bearing 40. The ball of the second ball bearing 60 is connected to the other end of the connecting rod 50. The clamp 70 is connected to the second ball bearing 60 and is located outside the support tube 20 for clamping the pipeline. The tension spring 80 is located inside the support tube 20, and one end of the tension spring 80 is connected to the support plate 10. The tension sensor 90 is connected to the other end of the tension spring 80 and is mounted on the support frame 30. When the clamp 70 is clamped on the pipeline, the tension spring 80 is in a stretched state.

[0038] An underground pipeline deformation monitoring device provided by an embodiment of the present disclosure includes a support plate 10, a support tube 20, a support frame 30, a first ball bearing 40, a connecting rod 50, a second ball bearing 60, a clamp 70, a tension spring 80 and a tension sensor 90. The support tube 20 is connected to the support plate 10 and is used to support and install a movable support frame 30. The support frame 30 is slidably installed on the inner wall of the support tube 20 along the axial direction of the support tube 20, and can make linear motion relative to the support tube 20. The two ends of the connecting rod 50 are respectively connected to the balls of the first ball bearing 40 and the second ball bearing 60, and the first ball bearing 40 and the second ball bearing 60 are respectively installed on the support frame 30 and the clamp 70, so that the clamp 70 can move in any direction relative to the support frame 30. The clamp 70 is located outside the support tube 20, used to clamp the pipeline, and moves with the movement of the pipeline. The tension spring 80 is located inside the support tube 20 and is used to provide force. One end of the tension spring 80 is connected to the support plate 10, and the other end is connected to the tension sensor 90 installed on the support frame 30. When the relative position of the support frame 30 and the support plate 10 changes, the tension spring 80 can produce different deformation amounts, and the tension value generated by the tension spring 80 can be detected by the tension sensor 90.

[0039] During use, when the clamp 70 is clamped on the pipeline, the tension spring 80 is in a stretched state, so that the tension measured by the tension sensor 90 is maintained at a specific value. Since the first ball bearing 40 and the second ball bearing 60 can both realize variable-angle power transmission, the clamp 70 can move in any direction relative to the support frame 30. And since the support frame 30 can move along the axial direction of the support tube 20, when the pipeline settles, twists, and moves forward and backward, the tension spring 80 can produce different deformation amounts. Thereby, the tension value detected by the tension sensor 90 changes, and then it can be judged whether the pipeline deformation exceeds the set range based on the change in tension. Monitoring can be performed when the pipeline settles, twists, and moves forward and backward, which can be applied to deformation detection in different situations.

[0040] Optionally, combined Figure 1 As shown, the support frame 30 includes a first side wall 31 and a second side wall 32. The ball bearing and the tension sensor 90 are both installed on the support frame 30. Along the thickness direction of the first side wall 31, the ball bearing and the tension sensor 90 are located on both sides of the first side wall 31. The second side wall 32 is connected to the first side wall 31. Along the length direction of the first side wall 31, the second side wall 32 is located on both sides of the first side wall 31. Both sides of the second side walls 32 can be slidably installed on the support tube 20. Among them, the planes where the second side walls 32 on both sides are parallel to each other and perpendicular to the plane where the first side wall 31 is located.

[0041] In the disclosed embodiment, the support frame 30 includes a first side wall 31 and a second side wall 32 connected to each other. The first side wall 31 is used to support and install the ball bearing and the tension sensor 90, and is used to be slidably connected to the support tube 20, and each plays a different role. The support frame 30 is designed as a whole in one piece, which can facilitate the assembly of the various components of the device.

[0042] Optionally, combined Figure 1 As shown, it also includes a guide rail 100 and a slider 110. The guide rail 100 is installed on the inner wall of the support tube 20 along the axial direction of the support tube 20, and is located on both sides of the support tube 20 along the radial direction of the support tube 20. The sliders 110 are slidably installed on the guide rails 100 on both sides, and are respectively connected to the second side walls 32 on both sides.

[0043] In the embodiment of the present disclosure, a guide rail 100 is installed inside the support tube 20 along the axial direction of the support tube 20 and a slider 110 is connected to the second side wall 32. The slider 110 is slidably installed on the guide rail 100, and the two together play a guiding and supporting role, so that the support frame 30 can move along the axial direction of the support tube 20.

[0044] Optionally, combined Figure 1 and Figure 2As shown, it also includes a limiting column 120. The limiting column 120 is connected to the inner wall of the support tube 20 and is respectively located at the end of each guide rail 100.

[0045] In the embodiment of the present disclosure, a limiting column 120 connected to the inner wall of the support tube 20 and respectively located at the end of each guide rail 100 is further included. The limiting column 120 is used to limit the position to prevent the slider 110 from falling off the guide rail 100.

[0046] Optionally, combined Figure 1 , Figure 3 and Figure 4 As shown, the clamp 70 includes a first semi-annular clasp 71 and a second semi-annular clasp 72. The first semi-annular clasp 71 is connected to the connecting rod 50. The second semi-annular clasp 72 is directly opposite to the first semi-annular clasp 71. One end of the first semi-annular clasp 71 and one end of the second semi-annular clasp 72 are rotatably connected, and the other end of the first semi-annular clasp 71 and the other end of the second semi-annular clasp 72 are detachably connected.

[0047] In the disclosed embodiment, the clamp 70 includes a first semi-annular gusset plate 71 connected to the connecting rod 50 and a second semi-annular gusset plate 72 directly opposite to the first semi-annular gusset plate 71. One end of the first semi-annular gusset plate 71 and one end of the second semi-annular gusset plate 72 are rotatably connected, and the other end of the first semi-annular gusset plate 71 and the other end of the second semi-annular gusset plate 72 are detachably connected. The pipeline can be clamped with the first semi-annular gusset plate 71 and the second semi-annular gusset plate bracket to complete the clamping and fixing work of the pipeline.

[0048] Optionally, combined Figure 1 , Figure 3 and Figure 4 As shown, the clamp 70 also includes a bolt and a nut. The bolt is inserted through the first semi-annular gusset plate 71 and the second semi-annular gusset plate 72. The nut is threadedly connected to the bolt.

[0049] In the disclosed embodiment, the clamp 70 further includes bolts and nuts as connecting members. After the bolts are inserted through the first semi-annular clasp plate 71 and the second semi-annular clasp plate 72, the nuts are threadedly connected to the bolts to clamp and fix the pipeline. The method of using bolts and threads as connecting members has the advantages of stable connection and easy disassembly and assembly.

[0050] Optionally, combined Figure 1 and Figure 4 As shown, the clamp 70 further includes a connecting block 73. One end of the connecting block 73 is rotatably connected to the first semi-annular buckle plate 71, and the other end of the connecting block 73 is rotatably connected to the second semi-annular buckle plate 72.

[0051] In the disclosed embodiment, the clamp 70 further includes a connection block 73 rotatably connected to the first semi-annular clasp plate 71 and the second semi-annular clasp plate 72. The connection block 73 is used to enable the first semi-annular clasp plate 71 and the second semi-annular clasp plate 72 to rotate relative to each other, so as to place the pipeline between the first semi-annular clasp plate 71 and the second semi-annular clasp plate 72, or to move the pipeline out from between the first semi-annular clasp plate 71 and the second semi-annular clasp plate 72.

[0052] Optionally, combined Figure 1 and Figure 4 As shown, it also includes support rods 130 and mounting plates 140. The support rods 130 are mounted on the support plate 10 and are evenly distributed around the support tube 20. The mounting plates 140 are respectively connected to each support rod 130, and each mounting plate 140 includes a mounting hole. The planes where the multiple mounting plates 140 are located overlap with each other and are parallel to the plane where the support plate 10 is located.

[0053] In the embodiment of the present disclosure, a support rod 130 and a mounting plate 140 are also included. The support rod 130 is used to determine the relative position of the mounting plate 140 and the support plate 10, and the mounting plate 140 includes a mounting hole for passing a connecting member. During use, the mounting plate 140 can be connected to a wall or the like through the connecting member passing through the mounting hole, thereby fixing the position of the entire device.

[0054] Optionally, combined Figure 1 and Figure 4 As shown, it also includes a sealing cover 150. The sealing cover 150 is connected to the end surface of the support tube 20, and the sealing cover 150 includes a through hole. Among them, the connecting rod 50 is movably arranged in the through hole.

[0055] In the embodiment of the present disclosure, a sealing cover 150 is further included which is connected to the end surface of the support tube 20. The sealing cover 150 is used to play a sealing and protective role to reduce dust and the like from entering the interior of the support tube 20.

[0056] Optionally, combined Figure 1 As shown, it also includes a tension spring support 160. The tension spring support 160 is respectively installed at both ends of the tension spring 80, and the tension springs 80 at both ends are connected to the support plate 10 and the tension sensor 90 respectively by supports.

[0057] In the embodiment of the present disclosure, there are also support posts 160 for the tension spring respectively installed at both ends of the tension spring 80. The support posts of the tension spring 80 at both ends are respectively connected to the support plate 10 and the tension sensor 90 to install the spring between the support plate 10 and the tension sensor 90. The design of the support posts 160 for the tension spring makes it easy to replace the tension spring 80.

[0058] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An underground pipeline deformation monitoring device, characterized in that: include: Support plate; A support tube connected to the support plate, wherein the axis of the support tube is perpendicular to the plane where the support plate is located; A support frame is slidably mounted on the inner wall of the support tube along the axial direction of the support tube; A first ball bearing, mounted on the support frame; a connecting rod, one end of which is connected to the ball of the first ball bearing; a second ball bearing, wherein a ball of the second ball bearing is connected to the other end of the connecting rod; A clamp, connected to the second ball bearing and located outside the support tube, for clamping the pipeline; A tension spring is located inside the support tube, and one end of the tension spring is connected to the support plate; A tension sensor connected to the other end of the tension spring and mounted on the support frame; Wherein, when the clamp is clamped on the pipeline, the tension spring is in a stretched state.

2. The underground pipeline deformation monitoring device according to claim 1, characterized in that: The support frame comprises: A first side wall, the ball bearing and the tension sensor are both mounted on the support frame, and along the thickness direction of the first side wall, the ball bearing and the tension sensor are located on both sides of the first side wall; A second side wall connected to the first side wall, and located on both sides of the first side wall along the length direction of the first side wall, and the second side walls on both sides can be slidably mounted on the support tube; The planes where the second side walls on both sides are located are parallel to each other and perpendicular to the plane where the first side wall is located.

3. The underground pipeline deformation monitoring device according to claim 2, characterized in that: Also includes: A guide rail is installed on the inner wall of the support tube along the axial direction of the support tube, and is located on both sides of the support tube along the radial direction of the support tube; The sliders are slidably mounted on the guide rails at both sides and are connected to the second side walls at both sides.

4. The underground pipeline deformation monitoring device according to claim 3, characterized in that: Also includes: The limiting columns are connected to the inner wall of the support tube and are respectively located at the end of each guide rail.

5. The underground pipeline deformation monitoring device according to claim 1, characterized in that: The clamp comprises: A first semi-annular gusset plate connected to the connecting rod; A second semi-annular gusset plate, directly opposite to the first semi-annular gusset plate; Among them, one end of the first semi-annular buckle plate and one end of the second semi-annular buckle plate are rotatably connected, and the other end of the first semi-annular buckle plate and the other end of the second semi-annular buckle plate are detachably connected.

6. The underground pipeline deformation monitoring device according to claim 5, characterized in that: The clamp also includes: A bolt is passed through the first semi-annular gusset plate and the second semi-annular gusset plate; A nut is threadedly connected to the bolt.

7. The underground pipeline deformation monitoring device according to claim 5, characterized in that: The clamp also includes: A connecting block, one end of which is rotatably connected to the first semi-annular buckle plate, and the other end of which is rotatably connected to the second semi-annular buckle plate.

8. An underground pipeline deformation monitoring device according to any one of claims 1 to 7, characterized in that: Also includes: Support rods are mounted on the support plate and evenly distributed around the support tube; A mounting plate, connected to each of the support rods, respectively, and each of the mounting plates comprises a mounting hole; The planes where the plurality of mounting plates are located overlap with each other and are parallel to the plane where the supporting plate is located.

9. An underground pipeline deformation monitoring device according to any one of claims 1 to 7, characterized in that: Also includes: A sealing cover connected to the end surface of the support tube, wherein the sealing cover comprises a through hole; Wherein, the connecting rod is movably arranged in the through hole.

10. An underground pipeline deformation monitoring device according to any one of claims 1 to 7, characterized in that: Also includes: The tension spring support pillars are respectively installed at the two ends of the tension spring, and the tension spring supports at the two ends are respectively connected to the support plate and the tension sensor.

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