Three-dimensional deformation monitoring precision testing device

By designing a three-dimensional deformation monitoring device that includes a base, casters, telescopic columns, and clamping mechanisms, the flexibility and mobility issues of existing devices in monitoring structures of different heights and inclinations have been solved, enabling flexible three-dimensional deformation monitoring and convenient data acquisition.

CN223499251UActive Publication Date: 2025-10-31POWERCHINA BEIJING ENG CORP
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Patent Information

Application Number
CN202423100610.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-10-31
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing three-dimensional deformation monitoring accuracy testing devices lack flexibility and adjustability, cannot adapt to deformation monitoring of structures with different heights and inclinations, and are inconvenient to move.

Method used

A three-dimensional deformation monitoring accuracy testing device was designed, comprising a base, casters, telescopic columns, tilt adjustment components, and a clamping mechanism. The casters provide convenient movement, the telescopic columns and tilt adjustment components enable flexible adjustment of height and tilt, and the clamping mechanism adapts to different shapes of the testing device body.

Benefits of technology

It enables flexible monitoring of structures with different heights and inclinations, provides convenient mobility and adjustability, is highly applicable, and is suitable for complex field environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of monitoring precision testing devices, and discloses a three-dimensional deformation monitoring precision testing device which comprises a base, four universal wheels are installed at the bottom of the base, a ball column is fixedly installed in the center of the top of the base, a telescopic column is installed on the ball column, and the telescopic column is fixedly installed on the base. A telescopic column inclination adjusting assembly is arranged outside the telescopic column; a bottom ring plate is fixedly mounted at the top of the telescopic column, a top ring plate is arranged above the bottom ring plate, and the top ring plate is provided with a top ring plate inclination adjusting assembly; the top of the top ring plate is connected with a clamping mechanism, the clamping mechanism is used for clamping the testing device body, and the top of the top ring plate is also provided with four levelers. According to the device, the height and the gradient can be simply and quickly adjusted, so that deformation of structures with different heights and different gradients can be monitored, and the applicability of the device is improved. And through the design of the base, the user can conveniently move the whole device.
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Description

Technical Field

[0001] This utility model relates to the technical field of monitoring accuracy testing devices, specifically a three-dimensional deformation monitoring accuracy testing device. Background Technology

[0002] Three-dimensional deformation monitoring technology, as an important engineering monitoring method, is widely used in the safety assessment of structures such as buildings, bridges, and tunnels. It provides engineers with crucial data support by accurately measuring the spatial positional changes of structures over a specific time period, thereby ensuring the stability and safety of the structures.

[0003] However, common three-dimensional deformation monitoring accuracy testing devices often have some significant drawbacks due to design limitations. For example, these devices often lack sufficient flexibility and adjustability, making it impossible to monitor the deformation of structures at different heights and inclinations in complex and changing field environments. Furthermore, their simple structural design makes them unsuitable for effective mobile operation in actual work. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a three-dimensional deformation monitoring accuracy testing device, which has the advantages of convenient adjustment and easy mobility. It can flexibly monitor the deformation of structures with different heights and inclinations, and has strong applicability.

[0005] To achieve the aforementioned goals of convenient adjustment, strong applicability, and easy mobility, this utility model provides the following technical solution:

[0006] This utility model provides a three-dimensional deformation monitoring accuracy testing device, including a base (1), four universal wheels (2) installed at the bottom of the base (1), a ball column (16) fixedly installed at the top center of the base (1), a telescopic column (7) installed on the ball column (16), and a telescopic column tilt adjustment component provided on the outside of the telescopic column (7); a bottom ring plate (8) fixedly installed on the top of the telescopic column (7), a top ring plate (10) provided above the bottom ring plate (8), and a top ring plate tilt adjustment component provided on the top ring plate (10); a clamping mechanism (13) is connected to the top of the top ring plate (10), the clamping mechanism (13) is used to clamp the testing device body (14), and four levels (12) are also provided on the top of the top ring plate (10).

[0007] As a preferred technical solution of this utility model: the telescopic column (7) includes an outer cylinder column (701) and a piston column (702); the bottom of the outer cylinder column (701) is provided with a spherical hole that cooperates with the ball column (16), so that the outer cylinder column (701) can tilt in different directions around the ball column (16); the piston column (702) is slidably installed on the upper part of the outer cylinder column (701); both the outer cylinder column (701) and the piston column (702) are provided with multiple threaded holes at different heights. After the piston column (702) is raised and lowered relative to the outer cylinder column (701) to the required height, a second bolt (15-2) is used to pass through the aligned threaded holes of the outer cylinder column (701) and the piston column (702) to achieve the fixation between the piston column (702) and the outer cylinder column (701).

[0008] As a preferred technical solution of this utility model: the top of the piston rod (702) is set in a stepped shape for mounting and fixing the bottom ring plate (8).

[0009] As a preferred technical solution of this utility model: the telescopic column inclination adjustment component is provided on the outside of the outer cylinder (701);

[0010] The telescopic column tilt adjustment assembly includes a slider (3), a telescopic rod (4), a connecting shaft (5), a ring frame (6), and a first bolt (15-1); the ring frame (6) is fixedly installed on the outer periphery of the outer cylinder column (701); four connecting shafts (5) are distributed and fixedly arranged around the ring frame (6); the end of each connecting shaft (5) away from the ring frame (6) is rotatably connected to the telescopic end of a telescopic rod (4), and the fixed end of each telescopic rod (4) is rotatably connected to a slider (3);

[0011] Four sliding grooves are provided on the top surface of the base (1); each slider (3) can be slidably installed in the corresponding sliding groove, and after the slider (3) slides into place, the slider (3) and the base (1) are fixed by the first bolt (15-1).

[0012] As a preferred technical solution of this utility model: the four grooves are arranged on the diagonal of the base (1); the four connecting shafts (5) are evenly installed on the outer ring of the ring frame (6) with the center of the ring frame (6) as the reference.

[0013] As a preferred technical solution of this utility model: the top ring plate tilt adjustment assembly includes an adjustment shaft seat (11) and an adjustment bolt (9);

[0014] The top ring plate (10) has four adjusting shaft seats (11) distributed at its bottom. The bottom ring plate (8) has four adjusting bolts (9) threaded around its perimeter. Each adjusting bolt (9) is coaxially aligned with one adjusting shaft seat (11). After the thread of each adjusting bolt (9) passes through the threaded hole of the bottom ring plate (8), its top is embedded in the adjusting shaft seat (11).

[0015] As a preferred technical solution of this utility model: the four adjustment shaft seats (11) are evenly installed at the bottom of the top ring plate (10) with the center of the top ring plate (10) as the reference.

[0016] As a preferred technical solution of this utility model: the top ring plate (10) is set in a stepped shape, and four levelers (12) are installed at the journal of the top ring plate (10), and the four levelers (12) are evenly installed on the top of the top ring plate (10) with the center of the top ring plate (10) as the reference; the position of the leveler (12) is intersecting the position of the adjusting shaft seat (11); the clamping mechanism (13) is installed on the top of the shaft head of the top ring plate (10).

[0017] As a preferred technical solution of this utility model: the clamping mechanism (13) includes a clamping plate (1301), a limiting plate (1302), and a bidirectional bolt (1303);

[0018] There are two clamping plates (1301), which are arranged opposite to each other. The limiting plate (1302) is fixedly installed on one side of each clamping plate (1301). The bidirectional bolt (1303) passes through the two limiting plates (1302), and the limiting plate (1302) is provided with a threaded hole that cooperates with the bidirectional bolt (1303).

[0019] As a preferred technical solution of this utility model: the two clamping plates (1301) form a triangular clamping hole in the middle for clamping the test device body (14) of various shapes; and each clamping plate (1301) has a clamping plate slider fixedly provided at the bottom, which cooperates with the clamping plate groove set at the opposite position of the top ring plate (10) so that each clamping plate (1301) slides along the clamping plate groove.

[0020] Compared with the prior art, this utility model provides a three-dimensional deformation monitoring accuracy testing device, which has the following beneficial effects:

[0021] This three-dimensional deformation monitoring accuracy testing device features a telescopic column design that allows users to quickly adjust the height of the testing device by adjusting the bolts on the column, enabling data acquisition at different heights. The telescopic shaft design, cleverly connecting the telescopic rod and the telescopic column via a ring frame, allows users to quickly adjust the verticality of the testing device on the telescopic column using the telescopic rod. The top and bottom ring plates allow users to lift the adjusting shaft seat by turning the adjusting bolts, enabling secondary fine adjustments to the device's height and tilt. Finally, the base design allows users to easily move the entire device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a sectional view of the base structure of this utility model;

[0024] Figure 3 This is a sectional view of the telescopic column structure of this utility model;

[0025] Figure 4 This is a schematic diagram showing the connection between the top ring plate and the bottom ring plate of this utility model.

[0026] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0027] In the diagram: 1. Base; 2. Casters; 3. Slider; 4. Telescopic rod; 5. Connecting shaft; 6. Ring frame; 7. Telescopic column; 701. Outer cylinder column; 702. Piston column; 8. Bottom ring plate; 9. Adjusting bolt; 10. Top ring plate; 11. Adjusting shaft seat; 12. Level; 13. Clamping mechanism; 1301. Clamping plate; 1302. Limiting plate; 1303. Bidirectional bolt; 14. Test device body; 15-1. First bolt; 15-2. Second bolt; 16. Ball column. Detailed Implementation

[0028] 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.

[0029] In the description of this utility model, it should be understood that the terms "center", "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 utility model 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 utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-5 This utility model provides a three-dimensional deformation monitoring accuracy testing device, including a base 1, four universal wheels 2 installed at the bottom of the base 1, a ball column 16 fixedly installed at the top center of the base 1, a telescopic column 7 installed on the ball column 16, and a telescopic column tilt adjustment component provided on the outside of the telescopic column 7; a bottom ring plate 8 fixedly installed on the top of the telescopic column 7, a top ring plate 10 provided above the bottom ring plate 8, and a top ring plate tilt adjustment component provided on the top ring plate 10; a clamping mechanism 13 connected to the top of the top ring plate 10, the clamping mechanism 13 being used to clamp the testing device body 14, and four levels 12 also provided on the top of the top ring plate 10.

[0032] In this example, the telescopic column 7 includes an outer cylinder column 701 and a piston column 702. The bottom of the outer cylinder column 701 has a spherical hole that mates with the ball column 16, allowing the outer cylinder column 701 to tilt in different directions around the ball column 16. The piston column 702 is slidably mounted on the upper part of the outer cylinder column 701. Both the outer cylinder column 701 and the piston column 702 have multiple threaded holes at different heights. After the piston column 702 is raised or lowered relative to the outer cylinder column 701 to the required height, a second bolt 15-2 is passed through the aligned threaded holes of the outer cylinder column 701 and the piston column 702 to fix the piston column 702 and the outer cylinder column 701. The top of the piston column 702 is stepped for mounting and fixing the bottom ring plate 8.

[0033] In this example, the telescopic column tilt adjustment component is provided on the outside of the outer cylinder 701;

[0034] The telescopic column tilt adjustment assembly includes a slider 3, a telescopic rod 4, a connecting shaft 5, a ring frame 6, and a first bolt 15-1. The ring frame 6 is fixedly installed on the outer periphery of the outer cylinder column 701. Four connecting shafts 5 are distributed and fixedly arranged around the ring frame 6. The end of each connecting shaft 5 away from the ring frame 6 is rotatably connected to the telescopic end of a telescopic rod 4, and the fixed end of each telescopic rod 4 is rotatably connected to a slider 3. Four sliding grooves are provided on the top surface of the base 1 for the movement of the four sliders 3. Each slider 3 can be slidably installed in the corresponding sliding groove, and after the slider 3 slides into place, the slider 3 and the base 1 are fixed by the first bolt 15-1.

[0035] In one specific manner, the four grooves are arranged on the diagonal of the base 1; the four connecting shafts 5 are evenly installed on the outer ring of the ring frame 6 with the center of the ring frame 6 as the reference.

[0036] Therefore, since the outer cylinder 701 can tilt around the ball column 16, the first bolt 15-1 is unscrewed from the slider 3 during adjustment, so that the slider 3 moves. At the same time, the length of the telescopic rod 4 is adjusted to tilt the outer cylinder 701 to the target state. Then, the slider 3 is fixed and the length of the telescopic rod 4 is fixed. At this time, the outer cylinder 701 is supported by the telescopic rods 4 around the perimeter to keep it in the target state.

[0037] In this example, the top ring plate tilt adjustment assembly includes an adjustment shaft seat 11 and an adjustment bolt 9;

[0038] The top ring plate 10 has four adjusting bearing seats 11 distributed at its bottom, and the bottom ring plate 8 has four adjusting bolts 9 threaded around its perimeter. Each adjusting bolt 9 corresponds coaxially with one of the adjusting bearing seats 11. After the threads of each adjusting bolt 9 pass through the threaded hole of the bottom ring plate 8, its top is embedded in the adjusting bearing seat 11. By adjusting the height of the top of the four adjusting bolts 9, the height and inclination of the top ring plate 10 it supports can be adjusted.

[0039] In one specific manner, the four adjusting shaft seats 11 are evenly installed at the bottom of the top ring plate 10 with the center of the top ring plate 10 as the reference.

[0040] In this example, the top ring plate 10 is stepped, and four levelers 12 are installed at the journal of the top ring plate 10, with the four levelers 12 evenly installed on the top of the top ring plate 10 with the center of the top ring plate 10 as the reference; the positions of the levelers 12 and the positions of the adjusting shaft seat 11 are intersecting; the clamping mechanism 13 is installed on the top of the shaft head of the top ring plate 10.

[0041] The clamping mechanism 13 includes a clamping plate 1301, a limiting plate 1302, and a bidirectional bolt 1303;

[0042] There are two clamping plates 1301, which are arranged opposite to each other. The limiting plate 1302 is fixedly installed on one side of each clamping plate 1301. The bidirectional bolt 1303 passes through the two limiting plates 1302, and the limiting plate 1302 is provided with a threaded hole that cooperates with the bidirectional bolt 1303.

[0043] Furthermore, the two clamping plates 1301 form a triangular clamping hole in the middle for clamping various shapes of the test device body 14; and each clamping plate 1301 has a clamping plate slider fixedly provided at its bottom, which cooperates with the clamping plate groove provided at the opposite position of the top ring plate 10, so that each clamping plate 1301 slides along the clamping plate groove.

[0044] The following is a specific example:

[0045] A three-dimensional deformation monitoring accuracy testing device includes a base 1, four universal wheels 2 installed at the bottom of the base 1, a ball column 16 installed at the center of the top of the base 1, four sliding grooves for the movement of four sliders 3 on the top of the base 1, a telescopic column 7 installed on the ball column 16, a ring frame 6 installed on the outer periphery of the telescopic column 7, the ring frame 6 connected to a telescopic rod 4, the telescopic rod 4 rotatably connected to the sliders 3, a bottom ring plate 8 and a top ring plate 10 installed on the telescopic column 7, four adjusting shaft seats 11 provided at the bottom of the top ring plate 10, four adjusting bolts 9 installed on the bottom ring plate 8, and the top of the adjusting bolts 9 embedded in the adjusting shaft seats 11, a clamping mechanism 13 connected to the top of the top ring plate 10, the clamping mechanism 13 used to clamp the testing device body 14, and four levels 12 also provided on the top of the top ring plate 10.

[0046] In this example, four casters 2 are installed at the four corners of the bottom, the slider 3 is provided with a first bolt 15-1, the middle part of the four sliding grooves on the top of the base 1 is also provided with a sliding groove for fixing the first bolt 15-1, and the four sliding grooves are set on the diagonal of the base 1. The bottom of the ball column 16 is provided with an external thread, and the center of the top of the base 1 is also provided with a threaded hole that mates with the ball column 16.

[0047] It should be noted that the casters 2 are installed at the four corners of the bottom of the base 1. This layout provides stable and flexible movement. The first bolt 15-1 on the slider 3 is used to fix the slider 3 to the base 1.

[0048] In this example, the telescopic column 7 consists of an outer cylinder column 701 and a piston column 702. The piston column 702 is installed inside the outer cylinder column 701 and is fixed to the outer cylinder column 701 by a second bolt 15-2. The outer cylinder column 701 is provided with several threaded holes for fixing the second bolt 15-2, and the bottom of the piston column 702 is also provided with threaded holes for fixing the second bolt 15-2. The top of the piston column 702 is stepped, and the bottom of the outer cylinder column 701 is provided with a spherical hole that mates with the ball column 16.

[0049] It should be noted that the threaded hole provided on the outer cylinder 701 is for fixing the piston 702 to the outer cylinder 701 by the second bolt 15-2. At the same time, this design allows the position of the piston 702 in the outer cylinder 701 to be precisely adjusted, thereby realizing the adjustment of the overall height of the telescopic column 7.

[0050] In this example, four connecting shafts 5 are evenly installed on the outer ring of the ring frame 6 with the center of the ring frame 6 as the reference. The ring frame 6 is fixedly installed at the bottom of the telescopic column 7. The piston part of the telescopic rod 4 is rotatably connected to the connecting shafts 5, and the fixed part of the telescopic rod 4 is rotatably connected to the slider 3.

[0051] It should be noted that this layout ensures the symmetry and stability between the connecting shafts 5, which helps the entire structure to operate smoothly during the telescopic process. The ring frame 6 is fixedly connected to the telescopic column 7 to ensure that the ring frame 6 remains stable during the movement of the telescopic rod 4 and will not slip or rotate.

[0052] In this example, four adjusting shaft seats 11 are evenly installed at the bottom of the top ring plate 10 with the center of the top ring plate 10 as the reference. Four adjusting bolts 9 are provided on the bottom ring plate 8 at the positions corresponding to the adjusting shaft seats 11 at the bottom of the top ring plate 10, and four threaded holes that cooperate with the adjusting bolts 9 are provided on the bottom ring plate 8. The bottom ring plate 8 is fixedly installed at the step of the piston column 702, and through holes that cooperate with it are provided on the bottom ring plate 8.

[0053] It should be noted that this uniformly distributed design helps to ensure the balance and stability of the entire structure, and also facilitates precise adjustment. By adjusting the bolts 9 and adjusting the bearing 11, the height and inclination of the top ring plate 10 can be changed by simply rotating the four adjusting bolts 9, thereby achieving secondary fine adjustment of the entire device.

[0054] In this example, the top ring plate 10 is stepped, and four levelers 12 are installed at the journal of the top ring plate 10. The four levelers 12 are evenly installed on the top of the top ring plate 10 with the center of the top ring plate 10 as the reference. The position of the levelers 12 on the top of the top ring plate 10 is intersected with the position of the adjusting shaft seat 11 at the bottom of the top ring plate 10. The clamping mechanism 13 is installed on the top of the shaft head of the top ring plate 10. The top of the shaft head of the top ring plate 10 is provided with two sliding grooves for the clamping mechanism 13 to slide.

[0055] It should be noted that the top ring plate 10 is designed in a stepped shape to provide multiple different planes, which facilitates the installation and fixing of various components and also provides convenience for operation. Four levelers 12 are installed at the journal of the top ring plate 10. The function of these levelers 12 is to facilitate the observation of the attitude of the top ring plate 10.

[0056] In this example, the clamping mechanism 13 consists of two clamping plates 1301, two limiting plates 1302, and a bidirectional bolt 1303. The clamping plates 1301 are arranged in a triangular shape in the middle to clamp the test device body 14 of various shapes. The bottom of the clamping plates 1301 is provided with two sliders. The limiting plates 1302 are installed at the rear end of the clamping plates 1301 and are installed perpendicular to the clamping plates 1301. The bidirectional bolt 1303 passes through the two limiting plates 1302 and the limiting plates 1302 are provided with threaded holes that cooperate with the bidirectional bolt 1303.

[0057] It should be noted that the triangular shape in the middle of the clamping plate 1301 allows the clamping plate 1301 to adapt to test device bodies 14 of different shapes and sizes, providing flexibility and versatility. The slider at the bottom of the clamping plate 1301 is designed to provide additional flexibility during adjustment or extension.

[0058] In summary: When using this device, the four telescopic rods 4 must first be adjusted to ensure that the telescopic column 7 remains parallel to the object being measured. During adjustment, unscrew the first bolt 15-1 from the slider 3. Move the slider 3 to the appropriate position along the groove at the top of the base 1 according to actual needs, and then tighten the first bolt 15-1 to fix the slider 3. During the movement of the slider 3, extend and retract the telescopic rods 4 as needed. After the slider 3 is fixed, also fix the telescopic rods 4 accordingly. This achieves the adjustment of the inclination of the telescopic column 7, keeping it parallel to the object being measured.

[0059] Subsequently, the test device body 14 is mounted on the top of the top ring plate 10 via the clamping mechanism 13. The telescopic column 7 is adjusted according to the height of the object to be tested. During adjustment, the second bolt 15-2 is unscrewed, the piston column 702 is moved to the appropriate position, and then the piston column 702 is fixed to the outer cylinder column 701 with the second bolt 15-2.

[0060] Finally, by observing the four levels 12 on the top ring plate 10, the top ring plate 10 and the test device body 14 on it are finely adjusted using the adjusting bolts 9 on the bottom ring plate 8 to ensure the balance and accuracy of the device.

[0061] When the device needs to be moved, there is no need for a cumbersome disassembly and reassembly process. Simply push the base 1, and the casters 2 at the bottom of the base 1 will help guide it to the designated position. Once there, simply lock the casters 2 in place.

[0062] This three-dimensional deformation monitoring accuracy testing device features a telescopic column design that allows users to quickly adjust the height of the testing device by adjusting the bolts on the column to collect data at different heights. The telescopic shaft design, cleverly connecting the telescopic rod and the telescopic column via a ring frame, allows users to quickly adjust the verticality of the testing device on the telescopic column using the telescopic rod. The top and bottom ring plates allow users to lift the adjusting shaft seat by turning the adjusting bolts, enabling secondary fine adjustments to the device's height and tilt. Finally, the base design allows users to easily move the entire device.

[0063] 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 three-dimensional deformation monitoring accuracy testing device, characterized in that: The device includes a base (1), four casters (2) are installed at the bottom of the base (1), a ball column (16) is fixedly installed at the center of the top of the base (1), a telescopic column (7) is installed on the ball column (16), and a telescopic column tilt adjustment component is provided on the outside of the telescopic column (7); a bottom ring plate (8) is fixedly installed on the top of the telescopic column (7), a top ring plate (10) is provided above the bottom ring plate (8), and a top ring plate tilt adjustment component is provided on the top ring plate (10); a clamping mechanism (13) is connected to the top of the top ring plate (10), the clamping mechanism (13) is used to clamp the test device body (14), and four levelers (12) are also provided on the top of the top ring plate (10).

2. The three-dimensional deformation monitoring accuracy testing device according to claim 1, characterized in that: The telescopic column (7) includes an outer cylinder column (701) and a piston column (702); the bottom of the outer cylinder column (701) is provided with a spherical hole that mates with the ball column (16), so that the outer cylinder column (701) can tilt in different directions around the ball column (16); the piston column (702) is slidably installed on the upper part of the outer cylinder column (701); both the outer cylinder column (701) and the piston column (702) are provided with multiple threaded holes at different heights. After the piston column (702) is raised or lowered relative to the outer cylinder column (701) to the required height, a second bolt (15-2) is used to pass through the aligned threaded holes of the outer cylinder column (701) and the piston column (702) to achieve the fixation between the piston column (702) and the outer cylinder column (701).

3. The three-dimensional deformation monitoring accuracy testing device according to claim 2, characterized in that: The top of the piston rod (702) is stepped to accommodate and fix the bottom ring plate (8).

4. The three-dimensional deformation monitoring accuracy testing device according to claim 2, characterized in that: The telescopic column tilt adjustment component is provided on the outside of the outer cylinder column (701); The telescopic column tilt adjustment assembly includes a slider (3), a telescopic rod (4), a connecting shaft (5), a ring frame (6), and a first bolt (15-1); the ring frame (6) is fixedly installed on the outer periphery of the outer cylinder column (701); four connecting shafts (5) are distributed and fixedly arranged around the ring frame (6); the end of each connecting shaft (5) away from the ring frame (6) is rotatably connected to the telescopic end of a telescopic rod (4), and the fixed end of each telescopic rod (4) is rotatably connected to a slider (3); Four sliding grooves are provided on the top surface of the base (1); each slider (3) can be slidably installed in the corresponding sliding groove, and after the slider (3) slides into place, the slider (3) and the base (1) are fixed by the first bolt (15-1).

5. The three-dimensional deformation monitoring accuracy testing device according to claim 4, characterized in that: The four grooves are arranged on the diagonal of the base (1); the four connecting shafts (5) are evenly installed on the outer ring of the ring frame (6) with the center of the ring frame (6) as the reference.

6. The three-dimensional deformation monitoring accuracy testing device according to claim 1, characterized in that: The top ring plate tilt adjustment assembly includes an adjustment shaft seat (11) and an adjustment bolt (9); The top ring plate (10) has four adjusting shaft seats (11) distributed at its bottom. The bottom ring plate (8) has four adjusting bolts (9) threaded around its perimeter. Each adjusting bolt (9) is coaxially aligned with one adjusting shaft seat (11). After the thread of each adjusting bolt (9) passes through the threaded hole of the bottom ring plate (8), its top is embedded in the adjusting shaft seat (11).

7. The three-dimensional deformation monitoring accuracy testing device according to claim 6, characterized in that: The four adjusting shaft seats (11) are evenly installed at the bottom of the top ring plate (10) with the center of the top ring plate (10) as the reference.

8. The three-dimensional deformation monitoring accuracy testing device according to claim 6, characterized in that: The top ring plate (10) is stepped, and four levelers (12) are installed at the journal of the top ring plate (10). The four levelers (12) are evenly installed on the top of the top ring plate (10) with the center of the top ring plate (10) as the reference. The position of the leveler (12) is intersecting the position of the adjusting shaft seat (11). The clamping mechanism (13) is installed on the top of the shaft head of the top ring plate (10).

9. The three-dimensional deformation monitoring accuracy testing device according to claim 8, characterized in that: The clamping mechanism (13) includes a clamping plate (1301), a limiting plate (1302), and a bidirectional bolt (1303); There are two clamping plates (1301), which are arranged opposite to each other. The limiting plate (1302) is fixedly installed on one side of each clamping plate (1301). The bidirectional bolt (1303) passes through the two limiting plates (1302), and the limiting plate (1302) is provided with a threaded hole that cooperates with the bidirectional bolt (1303).

10. A three-dimensional deformation monitoring accuracy testing device according to claim 9, characterized in that: The two clamping plates (1301) form a triangular clamping hole between them for clamping various shapes of test device bodies (14); and each clamping plate (1301) has a clamping plate slider fixedly provided at its bottom, which cooperates with the clamping plate groove located at the opposite position of the top ring plate (10), so that each clamping plate (1301) slides along the clamping plate groove.