Building settlement detection device

Abstract

The application discloses a kind of building settlement detection devices, comprising: support rod, support rod top is provided with mounting table, bottom is provided with the taper of maximum diameter greater than support rod diameter;Measuring instrument, setting on mounting table;Horizontal support, at least three horizontal supports are interval setting in support rod lower part;Connecting rod, corresponding horizontal support is provided with several, connecting rod one end is movably connected with horizontal support, the other end is connected with support rod by vertical reciprocating movement structure;Limiting plate, at least three limiting plates are circumferentially interval setting on support rod along the same height, and limiting plate is below horizontal support, limiting plate upper portion is connected with vertical reciprocating movement structure, lower portion is connected with support rod by rotating pair, so that under the driving of vertical reciprocating movement structure, limiting plate rotates around its bottom end.The building settlement detection device can fully guarantee the relative stable state of measuring instrument and ground by double limiting of ground and underground.

Description

Technical Field

[0001] This invention relates to the field of building settlement detection technology, and in particular to a building settlement detection device. Background Technology

[0002] When constructing a building, it is necessary to strictly control the deformation of the building's foundation. This is especially important for high-rise buildings, where even slight or localized settlement of the foundation can cause the building to tilt and collapse. Therefore, it is essential to conduct rigorous testing and control of the foundation during the initial stages of construction.

[0003] Settlement monitoring involves observing the settlement at designated observation points and fixed measuring points (permanent leveling points) on the building and expressing the degree of settlement using data. All buildings and structures with more than one story are required to have observation points set up in the design, and settlement monitoring should be set up for artificial and soil foundations (sand foundations). During construction, settlement should be observed and recorded on a schedule or by floor until completion.

[0004] Existing building settlement detection equipment includes a measuring instrument and a tripod for supporting and improving the stability of the measuring instrument. Because the overall structure formed by the measuring instrument and the tripod is relatively large, it may become unstable and shaky when used on soft, uneven, or rocky ground, which may affect the accuracy of the measurement data.

[0005] In the prior art, patent CN 112503336 A discloses a measuring instrument mounting bracket, including a fixing device, a connecting device, and a supporting device; the supporting device is rotatably connected to the bottom of the fixing device via the connecting device; the fixing device includes a placement plate and fixing bolts disposed on the top of the placement plate. The measuring instrument mounting bracket can maintain a horizontal position when placed on an inclined surface by adjusting the supporting device and the connecting device. However, when the device is placed on uneven ground, the tripod structure may wobble, affecting the accuracy of the test results.

[0006] In view of this, it is necessary to design a building settlement detection device to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a building settlement detection device that ensures the relative stability of the measuring instrument with respect to the ground through dual ground and underground limiting, while also allowing the observation of the underground limiting situation using the ground support structure to adjust the underground limiting state.

[0008] To achieve the above-mentioned objectives, the present invention provides a building settlement detection device, comprising:

[0009] The support rod has a mounting platform at its top and a tapered component at its bottom that facilitates insertion of the support rod into the soil and serves as a first limiting structure. The maximum diameter of the tapered component is greater than the diameter of the support rod.

[0010] The measuring instrument is mounted on the mounting platform;

[0011] At least three horizontal support members are spaced apart along the same horizontal plane at the bottom of the support rod, so that when the support rod is inserted into the ground until the horizontal support members are in close contact with the ground, the horizontal support members serve as a second limiting structure to improve the stability of the support rod; at the same time, the horizontal support members also serve as leveling members.

[0012] A number of connecting rods are provided corresponding to the horizontal support members. One end of the connecting rod is movably connected to the horizontal support member, and the other end is connected to the support rod through a vertical reciprocating moving structure, so that under the action of the vertical reciprocating moving structure, the end of the connecting rod connected to the horizontal support member slides horizontally on the support plate.

[0013] At least three limiting plates are circumferentially spaced at the same height on the support rod, and the limiting plates are located below the horizontal support. The upper part of the limiting plates is connected to the vertical reciprocating moving structure, and the lower part is connected to the support rod through a rotating joint, so that when the support rod is inserted into the soil, the limiting plates are in a vertical, unlimited state. When the position of the support rod is fixed, under the drive of the vertical reciprocating moving structure, all the limiting plates rotate synchronously around their bottom ends to unfold and form the third limiting structure. At the same time, the connecting rod rotates synchronously, so that the connecting rod serves as an observation point for reflecting the rotation angle of the limiting plates.

[0014] As a further improvement of the present invention, the support rod is hollow inside to form an accommodating space.

[0015] As a further improvement of the present invention, the vertical reciprocating moving structure includes a vertical threaded rod that can rotate relative to the support rod and is disposed in the accommodating space, a first slider and a second slider disposed on the vertical threaded rod, and a driving member for driving the vertical threaded rod to rotate; the first slider part passes through the support rod and is connected to the end of the connecting rod away from the horizontal support member, so that when the first slider moves up and down along the vertical threaded rod, it drives the end of the connecting rod away from the horizontal support rod to move up and down.

[0016] As a further improvement of the present invention, the side of the support rod is provided with a first vertical opening corresponding to the first slider; the first slider includes a first sliding part located in the accommodating space and a first annular part sleeved on the support rod and connected to the first sliding part by a connecting block passing through the first vertical opening; the end of the connecting rod away from the horizontal support member is connected to the first annular part by a rotating joint.

[0017] As a further improvement of the present invention, the upper part of the limiting plate is connected to the second slider via a rotating rod, and both ends of the rotating rod are connected to the second slider and the limiting plate respectively via rotating pairs, so that when the second slider moves up and down and drives the rotating rod to move, the rotating rod drives the limiting plate to rotate around its bottom end.

[0018] As a further improvement of the present invention, the side of the support rod is provided with a second vertical opening corresponding to the rotating rod and the limiting plate.

[0019] As a further improvement of the present invention, a sleeve is provided in the accommodating space. The sleeve is fitted onto the lower part of the vertical threaded rod, dividing the second slider into a second sliding part located inside the sleeve and a second annular part fitted onto the sleeve. A third vertical opening is provided on the side wall of the sleeve, so that the movement of the second sliding part drives the second annular part to move along the third vertical opening.

[0020] As a further improvement of the present invention, the end of the rotating rod away from the limiting plate is connected to the second annular portion via a rotating pair.

[0021] As a further improvement of the present invention, the horizontal support member is a rod, and a groove is provided on the side wall of the rod. The end of the connecting rod away from the first annular part is connected to the slider provided in the groove through a rotating pair.

[0022] As a further improvement of the present invention, the measuring instrument is provided with a dustproof net, and a cleaning component for cleaning the dustproof net is provided on the dustproof net through a horizontal reciprocating moving mechanism.

[0023] The beneficial effects of this invention are:

[0024] 1. This invention controls the rotation of a vertical threaded rod by a driving component to simultaneously drive the first and second sliders to move up and down. This enables the connecting rod and the limiting plate to rotate at the same angle relative to the support rod. When the support rod is inserted into the ground and the limiting plate is located underground, the rotation angle of the limiting plate can be observed through the connecting rod to determine the limiting status of the limiting plate.

[0025] 2. This invention features several horizontal support members arranged horizontally at the lower part of the support rod. These support members provide support when the bottom of the support rod is inserted until the horizontal support members touch the ground, improving the stability of the support rod. Simultaneously, by adjusting the contact between the horizontal support members and the ground, the device can be quickly leveled, allowing the support plate to simultaneously provide support and rapid leveling. Furthermore, the horizontal support members achieve surface-to-surface contact fixation, resulting in higher support stability compared to the point-to-surface contact fixation of conventional tripod structures.

[0026] 3. This invention utilizes a conical component to initially support and fix the support rod, a horizontal support component to provide secondary support and fixation, and a limiting plate to provide tertiary support and fixation. With dual support and fixation on the ground and underground, the stability of the support rod is significantly improved, ensuring that the support rod remains relatively stable with respect to the ground during the measurement process. This avoids the measurement accuracy being affected by shaking of the measuring instrument during use, thus guaranteeing the accuracy of the measuring instrument's detection.

[0027] 4. This invention utilizes the surface-to-surface contact between the horizontal support member and the ground to provide support force for the support rod on the ground. At the same time, in the underground part, the conical member provides initial fixing force, and the limiting plate, which is at a certain distance from the conical member in the vertical direction, provides a limiting effect to prevent the support rod from being pulled out of the soil by the upward force. This can fully meet the stability requirements in the settlement measurement process. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the building settlement detection device of the present invention.

[0029] Figure 2 This is a schematic diagram of the interior of point A.

[0030] Figure 3 This is a top-view diagram of part A.

[0031] Figure 4 This is a partial structural diagram of a building settlement detection device.

[0032] Figure 5 This is a schematic diagram of the structure for driving the connecting rod.

[0033] Figure 6 This is a schematic diagram of the measuring instrument.

[0034] Figure Labels

[0035] 10. Support rod; 11. Mounting platform; 111. Horizontal slide groove; 12. Conical part; 13. First vertical opening; 14. Second vertical opening; 20. Horizontal support; 30. Connecting rod; 41. Vertical threaded rod; 421. First sliding part; 422. Connecting block; 423. First annular part; 431. Second sliding part; 432. Second annular part; 441. First gear; 442. Second gear; 443. Drive rod; 444. Rotating handwheel; 50. Limiting plate; 51. Rotating rod; 52. Third annular part; 60. Sleeve; 61. Third vertical opening; 70. Measuring instrument; 80. Dustproof net; 81. Receiving groove; 91. Horizontal threaded rod; 92. Sliding block; 93. Cleaning part; 94. Guide rail. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0038] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] like Figures 1-2 As shown, the present invention provides a building settlement detection device, comprising:

[0040] The support rod 10 has a mounting platform 11 at its top and a tapered member 12 at its bottom that facilitates insertion of the support rod 10 into the soil and serves as a first limiting structure. The maximum diameter of the tapered member 12 is greater than the diameter of the support rod 10.

[0041] The measuring instrument 70 is mounted on the mounting platform 11;

[0042] At least three horizontal support members 20 are spaced apart along the same horizontal plane at the lower part of the support rod 10, so that when the support rod 10 is inserted into the ground until the horizontal support members 20 are in close contact with the ground, the horizontal support members 20 serve as a second limiting structure to improve the stability of the support rod 10; at the same time, the horizontal support members 20 also serve as leveling members.

[0043] A number of connecting rods 30 are provided corresponding to the horizontal support member 20. One end of the connecting rod 30 is movably connected to the horizontal support member 20, and the other end is connected to the support rod 10 through a vertical reciprocating moving structure, so that under the action of the vertical reciprocating moving structure, the end of the connecting rod 30 connected to the horizontal support member 20 slides horizontally on the support plate.

[0044] At least three limiting plates 50 are circumferentially spaced at the same height on the support rod 10, and the limiting plates 50 are located below the horizontal support member 20. The upper part of the limiting plate 50 is connected to the vertical reciprocating moving structure, and the lower part is connected to the support rod 10 through a rotating joint, so that when the support rod 10 is inserted into the soil, the limiting plate 50 is in a vertical non-limited state; when the position of the support rod 10 is fixed, under the drive of the vertical reciprocating moving structure, all the limiting plates 50 rotate synchronously around their bottom ends to unfold and form a third limiting structure. At the same time, the connecting rod 30 rotates synchronously, so that the connecting rod 30 serves as an observation point for the rotation angle of the limiting plate 50.

[0045] Specifically, the conical component 12 is a cone. The cone design allows the support rod 10 to act as a first limiting structure after insertion into the ground, ensuring the support rod 10 is in a preliminary stable state. Simultaneously, during insertion, the cone creates a hole with a diameter larger than that of the support rod 10, facilitating the smooth entry of the lower part of the support rod 10 into the ground. Furthermore, the gap between the hole and the sidewall of the support rod 10 allows the vertically moving structure to control the rotation of the limiting plate 50, preventing the soil from restricting the rotation of the limiting plate 50 due to the support rod 10's sidewall being tightly pressed against the soil.

[0046] Specifically, the support rod 10 has a hollow interior that provides a storage space.

[0047] Specifically, such as Figure 4As shown, the vertical reciprocating moving structure includes a vertical threaded rod 41 rotatable relative to the support rod 10 and disposed within the receiving space; a first slider and a second slider disposed on the vertical threaded rod 41; and a driving component for driving the vertical threaded rod 41 to rotate. The first slider partially passes through the support rod 10 and is connected to the upper end of the connecting rod 30, so that when the first slider moves up and down along the vertical threaded rod 41, it drives the upper end of the connecting rod 30 to move up and down. In this embodiment, the top of the vertical threaded rod 41 is fixed to the support rod 10 by a bracket, and a bearing is disposed on the bracket, so that the upper part of the threaded rod can rotate relative to the support rod 10. The bottom of the vertical threaded rod 41 is fixed to the bottom of the receiving space by a bearing, so that the entire vertical threaded rod 41 can rotate relative to the support rod 10 under driving force. The first slider and the second slider are sequentially threadedly connected to the vertical threaded rod 41 from top to bottom. The driving component includes a first gear 441 sleeved and fixed to the upper part of the threaded rod, and a component perpendicularly meshing with the first gear 441. The second gear 442 and the drive rod 443 fixed to the axis of the second gear 442. The end of the drive rod 443 away from the second gear 442 passes through the side wall of the support rod 10 and is connected to a rotating handwheel 444 outside the support rod 10. When the external force drives the rotating handwheel 444 to rotate, the drive rod 443 rotates and drives the second gear 442 to rotate. The rotation of the second gear 442 drives the first gear 441 to rotate, which in turn causes the vertical threaded rod 41 fixedly connected to the first gear 441 to rotate and drive the first slider and the second slider to move up and down along the vertical threaded rod 41.

[0048] Specifically, in this embodiment, the support rod 10 has a first vertical opening 13 on its side corresponding to the first slider; as shown... Figure 5 As shown, the first slider includes a first sliding part 421 located within the receiving space and a first annular part 423 sleeved on the support rod 10 and connected to the first sliding part 421 via a connecting block 422 passing through the first vertical opening 13. The upper end of the connecting rod 30 is connected to the first annular part 423 via a rotating joint, so that when the first sliding part 421 moves up and down along the vertical threaded rod 41, the connecting block 422 moves up and down along the first vertical opening 13 and drives the first annular part 423 to move up and down, thereby driving the upper end of the connecting rod 30 to move up and down. The horizontal support member 20 is a rod body with a sliding groove on its side wall. The lower end of the connecting rod 30 is connected to the slider provided in the sliding groove via a rotating joint, so that when the first annular part 423 drives the upper end of the connecting rod 30 to move up and down, the lower end of the connecting rod 30 moves along the sliding groove.

[0049] Specifically, in this embodiment, four horizontal support members 20 are arranged at intervals around the support rod 10. The horizontal support members 20 also serve as leveling members. During the installation of the support rod 10, when a certain angle is detected between the mounting platform 11 and the horizontal plane by the level detection device, the level of the mounting platform 11 is adjusted by adjusting the degree of contact between the horizontal support member 20 in the corresponding direction and the ground.

[0050] Specifically, such as Figures 2-3 As shown, a sleeve 60 is provided in the accommodating space. The sleeve 60 is sleeved on the lower part of the vertical threaded rod 41, dividing the second slider into a second sliding part 431 located inside the sleeve 60 and a second annular part 432 sleeved on the sleeve 60. A third vertical opening 61 is provided on the side wall of the sleeve 60, so that the movement of the second sliding part 431 drives the second annular part 432 to move along the third vertical opening 61.

[0051] Specifically, in this embodiment, the support rod 10 has a second vertical opening 14 on its side corresponding to the rotating rod 51 and the limiting plate 50; four limiting plates 50 are spaced around the support rod 10; the bottom end of the limiting plate 50 is connected to the third annular portion 52 sleeved and fixed on the sleeve 60 through a rotating joint; the upper part of the limiting plate 50 is connected to the second annular portion 432 through the rotating rod 51, and both ends of the rotating rod 51 are connected to the second annular portion 432 and the limiting plate 50 respectively through rotating joints, so that when the second slider moves downward and drives the rotating rod 51 to move, the rotating rod 51 drives the limiting plate 50 to rotate around its bottom end; when the limiting plate 50 rotates to extend out of the receiving space, the upper part of the limiting plate 50... The lower part of the rotating rod 51 and the part of the limiting plate 50 extend through the second vertical opening 14, allowing the upper part of the limiting plate 50 to be inserted into the soil to provide three-fold support and fixation for the support rod 10. If the limiting plate 50 is designed to rotate and unfold around its top end until it is inserted into the soil, the support rod 10 can be pulled out of the soil when subjected to an upward force. In this embodiment, by designing all the limiting plates 50 to rotate and unfold synchronously around their bottom ends until the upper part of the limiting plate 50 is inserted into the soil, the limiting plate 50 can provide sufficient limiting force. When the support rod 10 is subjected to an upward force, the resistance generated by the limiting plate 50 prevents the support rod 10 from being pulled out of the soil, thereby improving the stability of the support rod 10. In other embodiments, the limiting plate 50 can also be placed on the side wall of the support rod 10, so that when the limiting plate 50 is in a vertical state, it is embedded in the side wall of the support rod 10.

[0052] Specifically, a height adjustment component is also provided between the top of the support rod 10 and the mounting platform 11, so that when it is necessary to adjust the detection height of the measuring instrument 70 after the support rod 10 is fixed on the ground, the height adjustment component can be used for adjustment. The height adjustment component can adopt an existing vertical thread drive type height adjustment method or a vertical telescopic cylinder type height adjustment method, etc., which will not be described in detail here.

[0053] Specifically, the top surface of the mounting platform 11 is provided with a horizontal slide groove 111, and the bottom of the measuring instrument 70 is connected to a slider provided in the horizontal slide groove 111, so that the measuring instrument 70 can slide horizontally relative to the mounting platform 11 to adjust the horizontal position of the measuring instrument 70 according to the detection needs.

[0054] Specifically, the mounting platform 11 is also equipped with a level detection device (not shown in the figure) for observing the level status of the mounting platform 11; for example, a level bubble for level detection can be set on the mounting platform 11.

[0055] Specifically, such as Figure 6 As shown, a dustproof net 80 is provided on the side wall of the measuring instrument 70. A cleaning component 93 for cleaning the dustproof net 80 is provided on the dustproof net 80 through a horizontal reciprocating moving structure. The cleaning component 93 is vertically arranged on the side of the dustproof net 80 away from the measuring instrument 70, and a receiving groove 81 for collecting the cleaned dust is provided on the lower part of the side wall of the measuring instrument 70 corresponding to the dustproof net 80. A horizontal groove is also provided on the lower part of the side wall of the measuring instrument 70. The horizontal reciprocating moving structure includes components located in the horizontal groove and rotatably connected to the side wall of the measuring instrument 70 through a bearing. The measuring instrument 70 has a horizontal threaded rod 91, a sliding block 92 mounted on the horizontal threaded rod 91, and a motor for driving the horizontal threaded rod 91 to rotate. The cleaning component 93 is connected at its lower end to the sliding block 92 and at its upper end to the guide rail 94 mounted on the side wall of the measuring instrument 70. The motor drives the horizontal threaded rod 91 to rotate, causing the sliding block 92 to reciprocate along the horizontal threaded rod 91. This causes the cleaning component 93, which is connected to the sliding block 92, to move horizontally to clean the dust screen 80, thus preventing dust from affecting the operation of the measuring instrument 70.

[0056] The working principle of the building settlement detection device provided by the present invention will be explained below.

[0057] In use, insert the lower part of the support rod 10 into the soil until the horizontal support member 20 is flush with the ground, so that the conical member 12 is fixed in the soil to form a preliminary fixation. At the same time, the conical member 12 will form a vertical hole with a diameter larger than that of the support rod 10 during the insertion process, so that the lower part of the support rod 10 can be smoothly inserted into the soil, while avoiding the soil from being flush with the side wall of the support rod 10 and affecting the subsequent unfolding of the limiting plate 50. When it is observed that there is a certain angle between the mounting platform 11 and the horizontal plane, the degree of contact between the corresponding horizontal support member 20 and the ground can be adjusted, for example, by increasing the degree to which the corresponding horizontal support member 20 is embedded in the soil, to ensure the horizontal state of the mounting platform 11. This allows the horizontal support member 20 to be used for leveling while also providing secondary fixation and limitation for the support rod 10. Rotate the rotating handwheel 444 to drive the vertical threaded rod 41 to rotate, thereby simultaneously driving the first slider. The second slider moves downward, causing the lower end of the connecting rod 30 to move along the groove on the horizontal support 20. At the same time, all the limiting plates 50 rotate around their bottom ends and unfold to insert into the soil. At this time, the connecting rod 30 and the limiting plate 50 rotate at the same angle relative to the support rod 10. The limiting plate 50, as the third limiting structure, improves the stability of the support rod 10. The connecting rod 30 is used as an observation point to determine the rotation angle of the limiting plate 50 by observing the angle formed between the connecting rod 30 and the support rod 10, so as to determine the limiting status of the limiting plate 50. After the settlement test is completed, the rotating handwheel 444 is turned to drive the vertical threaded rod 41 to rotate, thereby simultaneously driving the first slider and the second slider to move upward until the connecting rod 30 is close to the vertical state. At this time, the limiting plate 50 is in a vertical non-limited state, providing an upward force to pull the support rod 10 out of the soil.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A building settlement detection device, characterized in that, include: The support rod has a mounting platform at its top and a tapered component at its bottom that facilitates insertion of the support rod into the soil and serves as a first limiting structure. The maximum diameter of the tapered component is greater than the diameter of the support rod. The measuring instrument is mounted on the mounting platform; At least three horizontal support members are spaced apart along the same horizontal plane at the bottom of the support rod, so that when the support rod is inserted into the ground until the horizontal support members are in close contact with the ground, the horizontal support members serve as a second limiting structure to improve the stability of the support rod; at the same time, the horizontal support members also serve as leveling members. A number of connecting rods are provided corresponding to the horizontal support members. One end of the connecting rod is movably connected to the horizontal support member, and the other end is connected to the support rod through a vertical reciprocating moving structure, so that under the action of the vertical reciprocating moving structure, the end of the connecting rod connected to the horizontal support member slides horizontally on the horizontal support member. At least three limiting plates are circumferentially spaced at the same height on the support rod, and the limiting plates are located below the horizontal support. The upper part of the limiting plates is connected to the vertical reciprocating moving structure, and the lower part is connected to the support rod through a rotating joint, so that when the support rod is inserted into the soil, the limiting plates are in a vertical, unlimited state. When the position of the support rod is fixed, under the drive of the vertical reciprocating moving structure, all the limiting plates rotate synchronously around their bottom ends to unfold and form the third limiting structure. At the same time, the connecting rod rotates synchronously, so that the connecting rod serves as an observation point for reflecting the rotation angle of the limiting plates.

2. The building settlement detection device according to claim 1, characterized in that: The support rod has a hollow interior that provides a storage space.

3. The building settlement detection device according to claim 2, characterized in that: The vertical reciprocating moving structure includes a vertical threaded rod that can rotate relative to the support rod and is disposed within the accommodating space, a first slider and a second slider disposed on the vertical threaded rod, and a driving member for driving the vertical threaded rod to rotate; the first slider part passes through the support rod and is connected to the end of the connecting rod away from the horizontal support member, so that when the first slider moves up and down along the vertical threaded rod, it drives the end of the connecting rod away from the horizontal support rod to move up and down.

4. The building settlement detection device according to claim 3, characterized in that: The support rod has a first vertical opening on its side corresponding to the first slider; the first slider includes a first sliding part located within the accommodating space and a first annular part sleeved on the support rod and connected to the first sliding part by a connecting block passing through the first vertical opening; the end of the connecting rod away from the horizontal support member is connected to the first annular part by a rotating joint.

5. The building settlement detection device according to claim 3, characterized in that: The upper part of the limiting plate is connected to the second slider via a rotating rod, and both ends of the rotating rod are connected to the second slider and the limiting plate respectively via rotating pairs, so that when the second slider moves up and down, driving the rotating rod to move, the rotating rod drives the limiting plate to rotate around its bottom end.

6. The building settlement detection device according to claim 5, characterized in that: The support rod has a second vertical opening on its side corresponding to the rotating rod and the limiting plate.

7. The building settlement detection device according to claim 5, characterized in that: A sleeve is provided within the accommodating space. The sleeve is fitted onto the lower part of the vertical threaded rod, dividing the second slider into a second sliding part located inside the sleeve and a second annular part fitted onto the sleeve. A third vertical opening is provided on the side wall of the sleeve, so that the movement of the second sliding part drives the second annular part to move along the third vertical opening.

8. The building settlement detection device according to claim 7, characterized in that: The end of the rotating rod away from the limiting plate is connected to the second annular part via a rotating joint.

9. The building settlement detection device according to claim 4, characterized in that: The horizontal support is a rod, and a groove is provided on the side wall of the rod. The end of the connecting rod away from the first annular part is connected to the slider provided in the groove through a rotating joint.

10. The building settlement detection device according to claim 1, characterized in that: The measuring instrument is equipped with a dustproof net, and a cleaning component for cleaning the dustproof net is provided on the dustproof net through a horizontal reciprocating moving mechanism.

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