Transverse building gap monitoring device

Abstract

The application provides a kind of transverse building gap monitoring device, including main body, support arm and linear distance measuring component;The main body adopts V-shaped structure, for insertion between two buildings and respectively abuts the upper edge of two buildings;Support arm two ends are used to be connected in the top surface of two buildings respectively, and have the freedom degree of moving along the width direction of main body relative to building;Linear distance measuring component is set on the main body, its detection end faces up and down direction, and is used to monitor the vertical spacing of main body and support arm.In actual use, when the width of transverse building gap changes, the position of main body relative to support arm adaptively rises or falls, and the value of linear distance measuring component changes adaptively.The transverse building gap monitoring device provided by the application ensures the accuracy of value feedback through the side of the body arranged obliquely, to improve the anti-interference in monitoring process, and ensure the accuracy of output result.

Description

Technical Field

[0001] This application belongs to the field of building construction technology, and specifically relates to a transverse building gap monitoring device. Background Technology

[0002] In the segmented construction of large buildings, large lateral building gaps are often reserved between adjacent units to accommodate differential settlement and temperature deformation during construction. These gaps are not microscopic expansion joints; their width changes dynamically due to the relative displacement of the structures on both sides, making real-time monitoring crucial.

[0003] Currently, wire-type displacement sensors are commonly used to monitor lateral building gaps. Specifically, the sensor is fixed to one side of the building wall, while the wire is secured to the other side of the building wall via hooks or other structures, and the wire is kept taut. In this state, through the cooperation of an internal encoder and circuitry, the sensor can output a real-time value of the gap width, thus enabling the monitoring of lateral building gaps.

[0004] The inventors discovered that the pull-string displacement sensor works by using an encoder between the pull-string and the internal shaft. However, during the extension and retraction of the pull-string, the relevant housing is not in a completely sealed state, which makes it easy for dust to enter the housing and cause contamination. This can lead to the pull-string getting stuck or damaged, affecting the accuracy of its output results. Utility Model Content

[0005] This application provides a transverse building gap monitoring device, which aims to improve the anti-interference capability during the monitoring process and ensure the accuracy of the output results.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A transverse building gap monitoring device is provided, comprising:

[0008] The main body adopts a V-shaped structure to be inserted between two buildings, with its two sides abutting the upper edges of the two buildings respectively;

[0009] A support arm, with its two ends for connection to the top surfaces of two buildings respectively, and having a degree of freedom to move relative to the buildings along the width direction of the main body; and the main body and the support arm are slidably connected in the vertical direction; and

[0010] A linear distance measuring component is mounted on the main body, with its detection end facing up and down, for monitoring the vertical distance between the main body and the support arm.

[0011] In one possible implementation, the support arm includes:

[0012] Two connecting rods are slidably disposed on both sides of the main body in a vertical direction. The two ends of each connecting rod are located on the inner and outer sides of the main body, respectively, and the outer ends of the connecting rods are connected to the top surface of the building via a lateral sliding connection structure.

[0013] Two combination plates are respectively connected to the inner ends of the two connecting rods, and the two combination plates are connected by an assembly structure to form a monitoring surface for cooperation with the linear ranging component.

[0014] In one possible implementation, the lateral sliding connection structure includes:

[0015] A guide hole penetrates the connecting rod vertically and extends along the length of the connecting rod; and

[0016] A directional screw is used to fix it on the top surface of the building and is inserted into the guide hole; the upper end of the directional screw extends to the upper side of the connecting rod and is threadedly connected to a mating nut for abutting against the upper side of the connecting rod.

[0017] In one possible implementation, the assembly structure includes:

[0018] A snap-fit ​​groove is formed on the end face of the combined plate facing away from the connecting rod, and extends through the thickness direction of the combined plate; and

[0019] A protrusion is fixedly disposed on the end face of the combined plate facing away from the connecting rod, and is adapted to be embedded in the snap-fit ​​groove along the thickness direction of the combined plate.

[0020] In one possible implementation, an arc-shaped groove is formed on the end face of the combined plate facing away from the connecting rod, and the arc-shaped groove extends through the thickness direction of the combined plate; when the two combined plates are connected by the assembly structure, the two arc-shaped grooves combine to form a circular hole structure.

[0021] The main body has an upwardly extending main shaft on its inner side, and the main shaft is inserted into the circular hole structure.

[0022] Furthermore, a spring is fitted onto the main shaft, with both ends of the spring connected to the combined plate and the inner bottom surface of the main body, respectively, to form an elastic degree of freedom for the main body to move downward relative to the support arm.

[0023] In one possible implementation, the line ranging component includes:

[0024] An infrared ranging sensor is disposed on the outside of the main shaft, on the upper side of the assembly plate, and facing the upper side of the assembly plate.

[0025] In one possible implementation, the main shaft has a recessed groove extending circumferentially and connected end-to-end, and the main shaft further includes:

[0026] Two arc-shaped components, symmetrically arranged about the main shaft, are joined by a snap-fit ​​structure to form a ring-shaped body placed within the sinkhole; and

[0027] A mounting platform is fixedly installed on the outer side of one of the arc-shaped components, and the infrared ranging sensor is fixedly connected to the lower side of the mounting platform.

[0028] In one possible implementation, a spherical groove is formed on the inner wall of the arc-shaped component, and a ball is embedded in the spherical groove;

[0029] The inner wall of the sinking trough has a sliding groove that extends circumferentially along the main axis and is connected end to end; when the annular body is fitted into the sinking trough, the ball bearing is embedded in the sliding groove and has an interference fit with the inner wall of the sliding groove.

[0030] In one possible implementation, a limiting end cap is fitted onto the upper end of the spindle, and the upper end face of the spindle has a mounting screw that passes through the limiting end cap and extends outward.

[0031] The protruding end of the mounting screw is threadedly connected to a mounting nut that abuts against the upper surface of the limiting end cap.

[0032] In one possible implementation, the main body has strip-shaped holes on both sides, and the two connecting rods are slidably inserted into the two strip-shaped holes respectively;

[0033] The upper end of the strip-shaped hole is connected to a clearance hole; when the connecting rod slides to the clearance hole, a gap is formed between the outer peripheral surface of the connecting rod and the inner wall of the clearance hole, allowing the connecting rod to rotate and retract.

[0034] In this embodiment, a stable and adaptable monitoring device is constructed by directly inserting a V-shaped main body into and abutting the upper edges of two buildings, while cooperating with support arms that are connected to the top surfaces of the buildings at both ends and can move in the width direction of the main body, and a linear ranging component set on the main body for detecting the vertical distance between the main body and the support arms.

[0035] When the width of the horizontal building gap changes, the main body can adaptively conform to the edges of the gap. Its inclined side can convert the change in the width of the horizontal gap into a change in the vertical direction, which is then accurately measured by a linear distance measuring component, thereby achieving high-precision monitoring of the dynamic changes in the gap width. The deflection angle of this V-shaped structure is related to the aforementioned accuracy, so as to facilitate adjustment and selection for different usage environments.

[0036] The transverse building gap monitoring device provided in this embodiment has the following advantages compared with the prior art:

[0037] (i) Strong anti-interference and high reliability: Avoids problems such as jamming and damage caused by dust intrusion of pull-wire sensors, significantly improving the long-term stability of the device and the reliability of monitoring data in harsh construction environments.

[0038] (ii) Adaptive structure and accurate measurement: Through the cooperation of the main body and the support arm, it can automatically adapt to the changes in the width of the building gap and convert the lateral displacement into the vertical displacement that is easier to measure accurately, effectively ensuring the accuracy and repeatability of the monitoring results.

[0039] (III) Easy to install and widely applicable: The overall structure is compact and does not require complex positioning on the buildings on both sides during installation. It is especially suitable for real-time and dynamic monitoring of reserved gaps in large-scale segmented construction, and has good engineering applicability and promotion value. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A three-dimensional structural schematic diagram of the transverse building gap monitoring device provided in the embodiments of this application;

[0042] Figure 2 for Figure 1 A magnified view of a portion of the middle circle A;

[0043] Figure 3 for Figure 1 A magnified view of a portion of the middle circle at point B;

[0044] Figure 4 This is an exploded structural diagram of the support arm used in the embodiments of this application;

[0045] Figure 5 This is a three-dimensional structural diagram of the main body and spring used in the embodiments of this application in a combined state;

[0046] Figure 6 for Figure 5 A magnified view of a portion of the middle circle C;

[0047] Figure 7 This is a partially enlarged schematic diagram of the spindle, limiting cap, and mounting nut used in the embodiments of this application in an explosive state;

[0048] Figure 8 This is an exploded structural diagram of the arc-shaped component, mounting platform, and linear ranging assembly used in the embodiments of this application;

[0049] Figure 9 This is a three-dimensional structural diagram of the arc-shaped component and ball bearings used in the embodiments of this application in an explosive state;

[0050] Figure 10 This is a partially enlarged cross-sectional view of the main body, spindle, and spring used in the embodiments of this application.

[0051] Explanation of reference numerals in the attached drawings: 1. Main body; 11. Strip hole; 12. Clearance hole; 2. Support arm; 21. Connecting rod; 22. Combination plate; 221. Arc groove; 3. Linear ranging component; 4. Lateral sliding connection structure; 41. Guide hole; 42. Orientation screw; 421. Connecting nut; 5. Assembly structure; 51. Snap-fit ​​groove; 52. Protrusion; 6. Main shaft; 61. Sinking groove; 62. Slide groove; 63. Limiting end cap; 64. Mounting screw; 641. Mounting nut; 7. Spring; 8. Arc-shaped component; 81. Spherical groove; 82. Ball bearing; 9. Mounting platform. Detailed Implementation

[0052] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0053] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0054] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0056] Please refer to the following: Figures 1 to 10 The transverse building gap monitoring device provided in this application will now be described. The transverse building gap monitoring device proposed in this application includes a main body 1, a support arm 2, and a linear distance measuring component 3.

[0057] The main body 1 is the core load-bearing and sensing component, and adopts a V-shaped structure. In actual installation, the main body 1 is directly inserted between the two buildings to be monitored, with its two sloping sides abutting against the upper edges of the two buildings respectively.

[0058] The support arm 2 serves as the reference frame of the device, with its two ends fixed to the top surfaces of the two buildings respectively via a transverse sliding connection structure 4. At the same time, the support arm 2 is slidably connected to the main body 1 in the vertical direction. This design allows the support arm 2 to have the freedom to move relative to the building in the width direction of the main body 1 (i.e., the transverse direction of the building gap), so that the position of the main body 1 is not constrained when the gap width changes.

[0059] The linear distance measuring component 3 is installed on the main body 1, with its detection end facing up and down, and is used to monitor the vertical distance between the main body 1 and the support arm 2 in real time.

[0060] The working principle of this device is as follows:

[0061] When the lateral gap between two buildings changes, the main body 1 will adaptively rise or fall under the influence of gravity and the building's edges. Since the sides of the main body 1 are inclined, the change in the lateral gap width is precisely converted into a change in the vertical distance between the main body 1 and the support arm 2 according to a certain geometric relationship. At this time, the linear ranging component 3 can indirectly and accurately calculate the actual change in the lateral building gap width by monitoring this change in vertical distance. The tilt angle of the V-shaped structure is a key design parameter, its magnitude being directly related to the measurement sensitivity, allowing for adjustment and selection based on different monitoring accuracy requirements and operating environments.

[0062] In this embodiment, a stable and adaptable monitoring device is constructed by directly inserting a V-shaped main body 1 into and abutting the upper edges of two buildings, while cooperating with support arms 2 whose two ends are respectively connected to the top surface of the buildings and can move in the width direction of the main body 1, and a linear ranging component 3 set on the main body 1 for detecting the vertical distance between the main body 1 and the support arms 2.

[0063] When the width of the horizontal building gap changes, the main body 1 can adaptively conform to the two edges of the gap. Its inclined side can convert the change in the width of the horizontal gap into a change in the vertical direction, which is then accurately measured by the linear ranging component 3, thereby achieving high-precision monitoring of the dynamic changes in the gap width. The deflection angle of this V-shaped structure is related to the aforementioned accuracy, so as to facilitate adjustment and selection for different usage environments.

[0064] The transverse building gap monitoring device provided in this embodiment has the following advantages compared with the prior art:

[0065] (i) Strong anti-interference and high reliability: The device adopts a non-contact linear ranging scheme, which fundamentally avoids problems such as cable jamming, wear or damage caused by dust and impurities entering the wire sensor, and significantly improves the stability and data reliability of long-term operation in harsh construction environments.

[0066] (ii) Adaptive structure and accurate measurement: By cooperating with the main body 1 and the horizontally sliding support arm 2, the device can automatically adapt to the dynamic changes of the gap and convert the horizontal displacement into the vertical displacement that is easier to measure accurately. The calculation is performed using geometric relationships, which effectively ensures the accuracy, linearity and repeatability of the monitoring results.

[0067] (III) Easy installation and wide applicability: The overall structure is compact, and there is no need for complex and precise positioning on the buildings on both sides during installation, which greatly simplifies the installation process. This device is particularly suitable for real-time and dynamic monitoring of reserved gaps in large-scale segmented construction, and has good engineering applicability and promotion value.

[0068] In some embodiments, such as Figure 1 and Figure 4 As shown, the support arm 2 includes two connecting rods 21 and two combination plates 22.

[0069] Two connecting rods 21 are slidably mounted on both sides of the main body 1 in the vertical direction. The two ends of each connecting rod 21 are located on the inner and outer sides of the main body 1, respectively, and their outer ends are connected to the top surface of the building through the following transverse sliding connection structure 4.

[0070] The two combined plates 22 are fixedly connected to the inner ends of the two connecting rods 21 respectively. Their thickness is consistent with that of the connecting rods 21 and their width is greater than that of the connecting rods 21.

[0071] When the support arm 2 is assembled, the two assembly plates 22 are joined together by the assembly structure 5 to form a complete and flat monitoring surface, which is used to cooperate with the linear ranging component 3 for ranging.

[0072] In some embodiments, such as Figure 2and Figure 4 As shown, the transverse sliding connection structure 4 includes a guide hole 41 and a directional screw 42.

[0073] The guide hole 41 extends through the connecting rod 21 in the vertical direction and extends along the length of the connecting rod 21, providing guidance for the sliding of its internal components.

[0074] The directional screw 42 is pre-fixed on the top surface of the building. When it is installed in conjunction with the connecting rod 21, the directional screw 42 is inserted into the guide hole 41 to achieve the orientation of the connecting rod 21.

[0075] When the directional screw 42 is inserted into the guide hole 41, the upper end of the directional screw 42 extends to the upper side of the connecting rod 21. In this embodiment, the upper end of the directional screw 42 is threaded with a mating nut 421. By tightening the mating nut 421, it can abut against the upper side of the connecting rod 21, thereby pressing and fixing the connecting rod 21, while allowing its position to be adjusted laterally within the range of the guide hole 41.

[0076] In some embodiments, such as Figure 4 As shown, the assembly structure 5 includes a snap-fit ​​groove 51 and a protrusion 52.

[0077] The snap-fit ​​groove 51 is formed on the end face of the combined plate 22 facing away from the connecting rod 21 and extends through the thickness direction of the combined plate 22.

[0078] The protrusion 52 is fixedly set on the end face of another combination plate 22 facing away from the connecting rod 21. Its shape and size are designed to be able to be accurately embedded in the snap-fit ​​groove 51 along the thickness direction of the combination plate 22, so as to realize the quick and reliable docking of the two combination plates 22.

[0079] In this embodiment, the two combined plates 22 are connected by two sets of assembly structures 5. Each combined plate 22 is provided with a single snap-fit ​​groove 51 and a single protrusion 52, and the snap-fit ​​groove 51 and protrusion 52 are symmetrically arranged around the center of the outer end face of the combined plate 22. By adopting this scheme, the two combined structures formed by the combined plates 22 and the connecting rod 21 can be made completely identical, facilitating mass production in actual manufacturing.

[0080] In some embodiments, such as Figure 1 and Figure 4 As shown, an arc-shaped groove 221 is formed on the end face of the combined plate 22 facing away from the connecting rod 21. The arc-shaped groove 221 extends through the thickness direction of the combined plate 22. When the two combined plates 22 are connected by the assembly structure 5, the two arc-shaped grooves 221 combine to form a complete circular hole structure.

[0081] Correspondingly, the inner side of the main body 1 has an upwardly extending main shaft 6, which is inserted into the aforementioned circular hole structure.

[0082] Based on this, a spring 7 is fitted onto the main shaft 6, with its two ends abutting against the lower surface of the combined plate 22 and the inner bottom surface of the main body 1, respectively. This structure provides a downward elastic support for the main body 1, giving it elastic freedom to move downward relative to the support arm 2, ensuring that both sides of the main body 1 can always be tightly abutted against the edge of the building.

[0083] like Figure 6 and Figure 8 As shown, the linear ranging component 3 specifically employs an infrared ranging sensor. This infrared ranging sensor is positioned on the outside of the main shaft 6 and above the assembly plate 22, with its detection end facing the upper side of the assembly plate 22, to measure the vertical distance between them in a non-contact manner.

[0084] In this embodiment, the infrared ranging sensor measures the upper surface of the composite plate 22; that is, the upper surface participates in the above process as a fixed optical reference surface (i.e., monitoring surface). The sensor does not directly measure the width of the building gap, but accurately measures its vertical distance (i.e., vertical spacing) from the reference surface.

[0085] Furthermore, the support arm 2 is fixed to the top surface of the building via the transverse sliding connection structures 4 at both ends, ensuring that its overall vertical position is basically stable. This ensures that the vertical position of the upper surface of the combined plate 22, which serves as the measurement reference, does not change due to variations in the gap width, providing a reliable reference system for the sensor.

[0086] In some embodiments, such as Figures 6 to 8 As shown, the spindle 6 has a recessed groove 61 that extends circumferentially and is connected end to end; based on this, the spindle 6 also includes two arc-shaped parts 8 and a mounting platform 9.

[0087] Two arc-shaped parts 8 are arranged with the axis of the main shaft 6 as the axis of symmetry. They are combined together by a snap-fit ​​structure to form an annular body that fits inside the sinking groove 61.

[0088] Mounting platform 9 is fixedly mounted on the outer surface of one of the arc-shaped components 8. The aforementioned infrared ranging sensor is fixedly mounted on the lower side of this mounting platform 9, thereby achieving stable installation and precise positioning of the sensor.

[0089] In actual use, the sensing point of the infrared ranging sensor can be changed by rotating the arc-shaped part 8; this design is for the purpose of the workers to come to the site for re-inspection when changes in the horizontal building gap are detected.

[0090] In some embodiments, such as Figure 8 and Figure 9As shown, a spherical groove 81 is formed on the inner wall of the arc-shaped component 8, and a ball bearing 82 is embedded in the spherical groove 81. In this embodiment, there are multiple spherical grooves 81, which are spaced apart along the circumference of the arc-shaped component 8, and each spherical groove 81 is embedded with a ball bearing 82.

[0091] The inner wall of the sinking groove 61 has a sliding groove 62 that extends circumferentially along the main shaft 6 and is connected end to end. When the annular body is placed in the sinking groove 61, the ball bearing 82 is embedded in the sliding groove 62 and forms an interference fit with the inner wall of the sliding groove 62. This allows the annular body (along with the sensor) to rotate around the main shaft 6 under a certain torque to adjust the angle, and after adjustment, it can maintain a stable position due to the interference fit.

[0092] In some embodiments, such as Figure 3 and Figure 7 As shown, a limiting end cap 63 is fitted onto the upper end of the spindle 6. The upper end face of the spindle 6 has a mounting screw 64, which passes through the limiting end cap 63 and extends outward.

[0093] The protruding end of the mounting screw 64 is threadedly connected to a mounting nut 641. By tightening the mounting nut 641, it can be made to abut against the upper end face of the limiting end cap 63, thereby securing the limiting end cap 63 and preventing the main shaft 6 from coming out of the round hole formed by the combination plate 22.

[0094] In some embodiments, such as Figure 1 and Figure 5 As shown, strip-shaped holes 11 are provided on both sides of the main body 1. Two connecting rods 21 are slidably inserted into the two strip-shaped holes 11 respectively to achieve their combination with the main body 1.

[0095] The upper end of the strip-shaped hole 11 is connected to a larger clearance hole 12. When it is necessary to disassemble or install the connecting rod 21, the connecting rod 21 can be slid upward to the clearance hole 12 position. At this time, there is a sufficient gap between the outer peripheral surface of the connecting rod 21 and the inner wall of the clearance hole 12, allowing the connecting rod 21 to rotate and exit from the side, which greatly facilitates the assembly and maintenance of the device.

[0096] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A transverse building gap monitoring device, characterized in that, include: The main body adopts a V-shaped structure to be inserted between two buildings, with its two sides abutting the upper edges of the two buildings respectively; A support arm, with its two ends for connection to the top surfaces of two buildings respectively, and having a degree of freedom to move relative to the buildings along the width direction of the main body; and the main body and the support arm are slidably connected in the vertical direction; and A linear distance measuring component is mounted on the main body, with its detection end facing up and down, for monitoring the vertical distance between the main body and the support arm.

2. The transverse building gap monitoring device as described in claim 1, characterized in that, The support arm includes: Two connecting rods are slidably disposed on both sides of the main body in a vertical direction. The two ends of each connecting rod are located on the inner and outer sides of the main body, respectively, and the outer ends of the connecting rods are connected to the top surface of the building via a lateral sliding connection structure. Two combination plates are respectively connected to the inner ends of the two connecting rods, and the two combination plates are connected by an assembly structure to form a monitoring surface for cooperation with the linear ranging component.

3. The transverse building gap monitoring device as described in claim 2, characterized in that, The lateral sliding connection structure includes: A guide hole penetrates the connecting rod vertically and extends along the length of the connecting rod; and A directional screw is used to fix it on the top surface of the building and is inserted into the guide hole; the upper end of the directional screw extends to the upper side of the connecting rod and is threadedly connected to a mating nut for abutting against the upper side of the connecting rod.

4. The transverse building gap monitoring device as described in claim 2, characterized in that, The assembly structure includes: A snap-fit ​​groove is formed on the end face of the combined plate facing away from the connecting rod, and extends through the thickness direction of the combined plate; and A protrusion is fixedly disposed on the end face of the combined plate facing away from the connecting rod, and is adapted to be embedded in the snap-fit ​​groove along the thickness direction of the combined plate.

5. The transverse building gap monitoring device as described in claim 2, characterized in that, An arc-shaped groove is formed on the end face of the combined plate facing away from the connecting rod, and the arc-shaped groove extends through the thickness direction of the combined plate; when two combined plates are connected by the assembly structure, the two arc-shaped grooves combine to form a circular hole structure. The main body has an upwardly extending main shaft on its inner side, and the main shaft is inserted into the circular hole structure. Furthermore, a spring is fitted onto the main shaft, with both ends of the spring connected to the combined plate and the inner bottom surface of the main body, respectively, to form an elastic degree of freedom for the main body to move downward relative to the support arm.

6. The transverse building gap monitoring device as described in claim 5, characterized in that, The linear ranging component includes: An infrared ranging sensor is disposed on the outside of the main shaft, on the upper side of the assembly plate, and facing the upper side of the assembly plate.

7. The transverse building gap monitoring device as described in claim 6, characterized in that, The main shaft has a recessed groove extending circumferentially and connected end to end; the main shaft also includes: Two arc-shaped components, symmetrically arranged about the main shaft, are joined by a snap-fit ​​structure to form a ring-shaped body placed within the sinkhole; and A mounting platform is fixedly installed on the outer side of one of the arc-shaped components, and the infrared ranging sensor is fixedly connected to the lower side of the mounting platform.

8. The transverse building gap monitoring device as described in claim 7, characterized in that, A spherical groove is formed on the inner wall of the arc-shaped component, and a ball is embedded in the spherical groove; The inner wall of the sinking trough has a sliding groove that extends circumferentially along the main axis and is connected end to end; when the annular body is fitted into the sinking trough, the ball bearing is embedded in the sliding groove and has an interference fit with the inner wall of the sliding groove.

9. The transverse building gap monitoring device as described in claim 5, characterized in that, The upper end of the spindle is fitted with a limiting end cap, and the upper end face of the spindle has a mounting screw that passes through the limiting end cap and extends out. The protruding end of the mounting screw is threadedly connected to a mounting nut that abuts against the upper surface of the limiting end cap.

10. The transverse building gap monitoring device as described in any one of claims 2-9, characterized in that, Both sides of the main body have strip-shaped holes, and the two connecting rods are slidably inserted into the two strip-shaped holes respectively; The upper end of the strip-shaped hole is connected to a clearance hole; when the connecting rod slides to the clearance hole, a gap is formed between the outer peripheral surface of the connecting rod and the inner wall of the clearance hole, allowing the connecting rod to rotate and retract.

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