A high-precision building structure displacement measuring device

Abstract

This utility model discloses a high-precision building structure displacement measuring device, belonging to the field of building structure measurement technology. It includes a right-angle prism, a mounting assembly, and an adjustment assembly. The right-angle prism includes a prism body, with a rotating shaft fixedly mounted on one side. The rotating shaft is rotatably connected to the upper inner side of a right-angle frame, and a mounting hole is provided at the bottom of the right-angle frame. The mounting assembly includes a base, with a mounting groove on the top of the base. This utility model, with its mounting plate and base, has a simple and convenient structure, allowing for permanent fixing at the monitoring point. Each installation only requires inserting the bottom of the right-angle frame into the mounting groove, ensuring the same horizontal angle of the right-angle prism each time. Furthermore, the adjustment assembly allows the pitch angle of the right-angle prism to be read and recorded via a dial, ensuring consistent pitch angles and reducing measurement errors.

Description

Technical Field

[0001] This utility model relates to the field of building structure measurement technology, specifically a high-precision building structure displacement measurement device. Background Technology

[0002] Structural displacement refers to the offset, rotation, or deformation of a building structure's overall or partial components in space under the influence of external loads, environmental factors, or changes in material properties. This includes both horizontal and vertical displacements of overall components such as structural apexes and floors, as well as local displacements of components such as beams, columns, and walls. The magnitude and trend of these displacements directly reflect the structure's stress state and stability. Currently, total stations combined with prisms are commonly used to measure structural displacement. The principle is to use the angle and distance measurement functions of the total station to obtain the three-dimensional coordinates of a prism installed at the structural monitoring point at different time points. The displacement is then calculated by comparing the coordinate differences. This method is suitable for displacement monitoring during multiple stages of building construction and operation.

[0003] Displacement measurements of building structures can take anywhere from several weeks to several years. To extend their lifespan and reduce operating costs, operators often remove the right-angle prism after each measurement, provided that monitoring and adjustment allow. The prism is then reinstalled for the next measurement. Since the right-angle prism is typically fixed to the detection point with a single expansion bolt, it is difficult to ensure that the horizontal and pitch angles of the prism are the same as those during the previous measurement. This results in measurement errors, and the existing technology has not solved this problem. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision building structure displacement measuring device. By setting an installation plate and a base, it can be permanently fixed at the monitoring point. Each installation only requires inserting the bottom of the right-angle frame into the installation slot, thereby ensuring that the horizontal angle of the right-angle prism is the same each time it is installed. By setting an adjustment component, the pitch angle of the right-angle prism can be read and recorded through the dial, thereby ensuring that the pitch angle is the same and reducing measurement errors, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-precision building structure displacement measuring device includes a right-angle prism, a mounting assembly, and an adjustment assembly;

[0007] The right-angle prism includes a prism body, a rotating shaft is fixedly installed on one side of the prism body, the rotating shaft is rotatably connected to the upper inner side of the right-angle frame, and a mounting hole is provided at the bottom of the right-angle frame;

[0008] The mounting assembly includes a base with a mounting groove on the top. The bottom of the right-angle bracket is inserted into the mounting groove. A limit post is fixedly installed in the middle of the mounting groove. The limit post slides with the mounting hole. Two sets of locking blocks are installed on both sides of the top of the limit post.

[0009] The adjustment assembly includes a rotating column, which is located on the upper outer side of the right-angle frame and fixedly connected to the rotating shaft. A pointer dial is fixedly installed on the side of the rotating column near the right-angle frame, and a scale dial that works in conjunction with the pointer dial is fixedly installed on the outer side of the right-angle frame.

[0010] Preferably, the outer top of the locking block is set as an inclined surface, and a limit plate is fixedly installed on the inner side of the locking block.

[0011] Preferably, the top of the limiting post is provided with two sets of telescopic grooves, and the locking block and the limiting plate are slidably installed in the telescopic grooves.

[0012] Preferably, a spring is slidably installed inside the telescopic groove, one end of the spring is fixedly connected to the limiting plate, and the other end of the spring is fixedly connected to the inner wall of the telescopic groove.

[0013] Preferably, two sets of iron plates are fixedly installed on both sides of the bottom of the mounting groove, and two sets of magnets that cooperate with the iron plates are fixedly installed on the bottom of the right-angle bracket.

[0014] Preferably, mounting plates are fixedly installed on both sides of the base, and the mounting plates are fixed to the monitoring points by screws.

[0015] Preferably, the top of the right-angle bracket is threaded with a locking screw, and the bottom of the locking screw abuts against the rotating shaft.

[0016] Preferably, the base is provided with a protective sleeve on the top, and the bottom of the protective sleeve is provided with a slot that matches the shape of the protective sleeve and the mounting plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model features a simple and convenient structure with a mounting plate and base, allowing for permanent fixation at the monitoring point. Each installation simply involves inserting the bottom of the right-angle frame into the mounting slot, ensuring that the horizontal angle of the right-angle prism remains consistent each time. Furthermore, the adjustable components allow for reading and recording the pitch angle of the right-angle prism via a dial, further guaranteeing the same pitch angle and reducing measurement errors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the protective sleeve structure;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the limiting column;

[0022] Figure 4 This is a schematic diagram of the base structure;

[0023] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Prism body; 2. Rotating shaft; 3. Right-angle bracket; 4. Mounting hole; 5. Base; 6. Mounting groove; 7. Limiting post; 8. Locking block; 9. Tightening post; 10. Pointer dial; 11. Scale dial; 12. Limiting plate; 13. Telescopic groove; 14. Spring; 15. Iron sheet; 16. Mounting plate; 17. Tightening screw; 18. Protective sleeve; 19. Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 This utility model provides a technical solution:

[0027] A high-precision building structure displacement measuring device includes a right-angle prism, the right-angle prism includes a prism body 1, a rotating shaft 2 is fixedly installed on one side of the prism body 1, the rotating shaft 2 is rotatably connected to the upper inner side of the right-angle frame 3, and the bottom of the right-angle frame 3 is provided with a mounting hole 4.

[0028] By setting up a right-angle prism, the laser signal emitted by the total station can be reflected, providing a precise optical target reference for displacement measurement; the rotational cooperation between the rotating shaft 2 and the right-angle bracket 3 allows the prism body 1 to adjust its pitch angle around the axis, meeting the aiming requirements of the total station in different monitoring scenarios; and the mounting hole 4 at the bottom of the right-angle bracket 3 provides a structural basis for the quick docking of the right-angle prism and the mounting components, ensuring that the right-angle prism can be stably positioned each time it is installed, which is a key component for realizing laser signal reflection and spatial coordinate measurement.

[0029] It also includes an installation component, which includes a base 5. The top of the base 5 has an installation groove 6. The bottom of the right-angle bracket 3 is inserted into the installation groove 6. A limit post 7 is fixedly installed in the middle of the installation groove 6. The limit post 7 slides with the installation hole 4. Two sets of locking blocks 8 are installed on both sides of the top of the limit post 7. The top of the outer side of the locking block 8 is set as a slope. A limit plate 12 is fixedly installed on the inner side of the locking block 8. Two sets of telescopic grooves 13 are opened on the top of the limit post 7. The locking block 8 and the limit plate 12 are slidably installed in the telescopic grooves 13. A spring 14 is installed, one end of which is fixedly connected to the limiting plate 12, and the other end of which is fixedly connected to the inner wall of the telescopic groove 13. Two sets of iron plates 15 are fixedly installed on both sides of the bottom of the mounting groove 6. Two sets of magnets that cooperate with the iron plates 15 are fixedly installed on the bottom of the right angle bracket 3. Mounting plates 16 are fixedly installed on both sides of the base 5. The mounting plates 16 are fixed to the monitoring points by screws. A protective sleeve 18 is provided on the top of the base 5. The bottom of the protective sleeve 18 has a slot 19 that matches the shape of the protective sleeve 18 and the mounting plate 16.

[0030] The installation components form the foundation for ensuring the accuracy of repeated installations of the right-angle prism. Positioning is primarily achieved through the precise fit between the base 5 and the right-angle bracket 3. The base 5 is permanently fixed to the building monitoring point via mounting plates 16 on both sides and screws. Its top mounting groove 6 interlocks with the bottom of the right-angle bracket 3, and the central limiting post 7 slides into the mounting hole 4 at the bottom of the right-angle bracket 3, strictly limiting the horizontal rotation of the right-angle bracket 3 and ensuring consistent horizontal angles of the right-angle prism during each installation. The locking block 8 at the top of the limiting post 7 (in conjunction with spring 14 and limiting plate 12) and the iron plate 15 at the bottom of the mounting groove 6, along with the magnet at the bottom of the right-angle bracket 3, further enhance the stability of the right-angle bracket 3 after installation, preventing positional shifts due to loosening during measurement. This also facilitates quick removal of the right-angle prism after a single measurement, balancing installation efficiency and positioning accuracy. Furthermore, the protective sleeve 18 at the top of the base 5 protects the mounting groove 6 and the limiting post 7 after the right-angle prism is removed, reducing the impact of environmental factors on the positioning structure.

[0031] It also includes an adjustment component, which includes a turning column 9. The turning column 9 is located on the upper outer side of the right-angle bracket 3 and is fixedly connected to the rotating shaft 2. A pointer dial 10 is fixedly installed on the side of the turning column 9 near the right-angle bracket 3. A scale dial 11 that works with the pointer dial 10 is fixedly installed on the outer side of the right-angle bracket 3. The rotating shaft 2 and the pointer dial 10 and scale dial 11 rotate in cooperation. The pointer dial 10 has a pointer groove, and the scale dial 11 has a scale groove. A locking screw 17 is threaded on the top of the right-angle bracket 3, and the bottom of the locking screw 17 abuts against the rotating shaft 2.

[0032] By setting up an adjustment component, the pitch angle of the right-angle prism is precisely controlled and recorded, ensuring that the prism's posture remains consistent during multiple measurements. The screwing column 9, fixedly connected to the rotating shaft 2, can drive the prism body 1 to rotate around the rotating shaft 2, thereby adjusting the pitch angle. The pointer dial 10 on one side cooperates with the scale dial 11 on the outside of the right-angle frame 3 to intuitively display the current pitch angle value of the right-angle prism, making it easy for operators to read and record angle parameters. The locking screw 17 on the top of the right-angle frame 3 abuts against the rotating shaft 2 after the angle adjustment is completed, locking the current angle position and preventing accidental angle changes during measurement. Through this structure, the pitch angle can be quickly calibrated based on the recorded angle value each time the right-angle prism is installed, effectively eliminating measurement errors caused by angle deviations and providing a reliable angle reference for high-precision displacement calculation.

[0033] In practical use, after moving the device to the designated building structure monitoring point, first, place the mounting plate 16 on one side of the base 5 onto the expansion screws, rotate the base 5 to make it rotate around the expansion screws, thereby adjusting it to a suitable angle. Then, according to the position of the mounting plate 16 on the other side, drive in another expansion screw, and then tighten the screw to permanently fix the base 5 of the mounting assembly to the surface of the monitoring point, ensuring that the base 5 is not loose and the mounting groove 6 is horizontal and facing upwards. Next, take out the right-angle prism with the right-angle bracket 3, align the bottom of the right-angle bracket 3 with the mounting groove 6 of the base 5 and insert it. During the process, the mounting hole 4 at the bottom of the right-angle bracket 3 will slide and engage with the limiting post 7 in the middle of the mounting groove 6. After the locking block 8 at the top of the limiting post 7 is squeezed, it retracts inward along the telescopic groove 13 (compressed by the spring 14). When the bottom of the right-angle bracket 3 is in contact with the bottom of the mounting groove 6, the locking block 8 is reset and ejected under the elastic force of the spring 14, forming a vertical limit on the right-angle bracket 3. At the same time, the magnet at the bottom of the right-angle bracket 3 and the mounting groove 6 The bottom iron plate 15 is adsorbed, further enhancing the stability of the installation; then adjust the adjustment components: rotate the screwing column 9 on the outside of the right angle bracket 3, driving the rotating shaft 2 and the prism body 1 to rotate around the inside of the right angle bracket 3 to adjust the pitch angle. By observing the corresponding value of the pointer dial 10 on one side of the screwing column 9 and the scale dial 11 on the outside of the right angle bracket 3, adjust the prism body 1 to the preset pitch angle (and record the angle value for subsequent reuse). After adjustment, tighten the locking screw 17 on the top of the right angle bracket 3 so that the bottom of the screw contacts the rotating shaft 2 to lock the current angle; at this time, the total station can be started, aiming at the prism body 1 to perform displacement measurement; after a single measurement, press the locking block 8 on the top of the limiting column 7 to retract it, pull up the right angle bracket 3 and the prism body 1 to complete the removal, and finally align the slot 19 at the bottom of the protective sleeve 18 with the base 5 and the mounting plate 16 to protect the mounting slot 6 of the base 5 and the limiting column 7 to prevent impurities from entering and affecting the next use.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high precision building structure displacement measuring device comprising a right angle prism, characterized in that: It also includes installation components and adjustment components; The right-angle prism includes a prism body (1), a rotating shaft (2) is fixedly installed on one side of the prism body (1), the rotating shaft (2) is rotatably connected to the upper inner side of the right-angle frame (3), and the bottom of the right-angle frame (3) is provided with a mounting hole (4). The mounting assembly includes a base (5), the top of which is provided with a mounting groove (6), the bottom of the right-angle bracket (3) is inserted into the mounting groove (6), a limiting post (7) is fixedly installed in the middle of the mounting groove (6), the limiting post (7) is slidably engaged with the mounting hole (4), and two sets of locking blocks (8) are installed on both sides of the top of the limiting post (7). The adjustment assembly includes a rotating column (9), which is located above the outer side of the right-angle frame (3) and is fixedly connected to the rotating shaft (2). A pointer disk (10) is fixedly installed on the side of the rotating column (9) near the right-angle frame (3), and a scale disk (11) that works with the pointer disk (10) is fixedly installed on the outer side of the right-angle frame (3).

2. The high precision building structure displacement measuring device according to claim 1, characterized in that: The outer top of the locking block (8) is set as an inclined surface, and a limit plate (12) is fixedly installed on the inner side of the locking block (8).

3. A high precision building structure displacement measuring device according to claim 2, characterized in that: The top of the limiting post (7) is provided with two sets of telescopic grooves (13), and the locking block (8) and the limiting plate (12) are slidably installed in the telescopic grooves (13).

4. The high precision building structure displacement measuring device according to claim 3, characterized in that: A spring (14) is slidably installed inside the telescopic groove (13). One end of the spring (14) is fixedly connected to the limiting plate (12), and the other end of the spring (14) is fixedly connected to the inner wall of the telescopic groove (13).

5. The high-precision building structure displacement measuring device according to claim 1, characterized in that: Two sets of iron plates (15) are fixedly installed on both sides of the bottom of the mounting groove (6), and two sets of magnets that cooperate with the iron plates (15) are fixedly installed on the bottom of the right angle bracket (3).

6. The high-precision building structure displacement measuring device according to claim 1, characterized in that: Mounting plates (16) are fixedly installed on both sides of the base (5), and the mounting plates (16) are fixed to the monitoring points by screws.

7. A high-precision building structure displacement measuring device according to claim 1, characterized in that: The top of the right-angle bracket (3) is threaded with a locking screw (17), and the bottom of the locking screw (17) abuts against the rotating shaft (2).

8. The high-precision building structure displacement measuring device according to claim 1, characterized in that: The base (5) is provided with a protective sleeve (18) on the top, and the bottom of the protective sleeve (18) is provided with a slot (19) that matches the shape of the protective sleeve (18) and the mounting plate (16).

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