Design surveying device for building interior decoration

Abstract

The application discloses a design surveying and mapping device for building indoor decoration, relates to the technical field of surveying and mapping devices, and comprises a ring-shaped sliding rail, the inner wall of the ring-shaped sliding rail is rotationally connected with a balance ring, the upper portion of the balance ring is provided with a surveying and mapping instrument body, the lower portion of the balance ring is hung with a gravity box through a chain, further comprising a main shaft arranged on the upper surface of the gravity box and used for driving the surveying and mapping instrument body to intermittently slide along the ring-shaped sliding rail, and a double-layer limiting plate arranged at the bottom of the surveying and mapping instrument body and capable of controlling the surveying and mapping instrument body to always be on the same horizontal plane at any position of the ring-shaped sliding rail. The surveying and mapping instrument body is automatically rotated to replace a surveying and mapping point through a control gear assembly, three-dimensional scanning of indoor dead angles is realized, and through the synergistic effect of the double-layer limiting plate, the balance ring and the gravity box, a gravity self-balancing system is formed, so that the surveying and mapping instrument body is always on the same height and the same horizontal plane when replacing any point for measurement, and the measured value is more accurate and effective.

Description

Technical Field

[0001] This invention relates to the field of surveying equipment technology, specifically to a design surveying device for building interior decoration. Background Technology

[0002] Surveying devices are instruments and equipment used to acquire spatial geometric information (such as distance, angle, elevation, coordinates, etc.) and generate topographic maps, plan views, or 3D models. They are widely used in various fields such as land surveying, urban planning, construction engineering, transportation construction, interior decoration, archaeological exploration, and disaster monitoring. With the development of technology, surveying devices have gradually evolved from early mechanical tools into high-precision intelligent systems integrating optics, electronics, computers, and artificial intelligence.

[0003] In building interior decoration projects, accurate spatial measurement and data collection are the foundation of design and construction. Precise surveying results can not only ensure the rationality and aesthetics of the decoration layout, but also effectively avoid material waste and construction delays caused by dimensional deviations.

[0004] Among them, the 3D laser mapping instrument is a measuring device with high-precision measurement technology. It can quickly and accurately acquire key data such as distance, angle, and elevation inside a building. Its measurement accuracy can reach the millimeter level, which can meet the requirements of precise data for building interior decoration design. The mapping instrument can process the measured data in real time and convert it into an intuitive 3D model or plan view. Staff can view and edit these data and models through terminal devices connected to the mapping instrument, such as tablets or laptops.

[0005] However, during the use of existing surveying instruments, some columns or ceilings may obstruct the view in the same space, making it difficult for a single measurement point to cover the entire space and easily forming blind spots. This results in insufficient completeness and limited accuracy of the measurement data, which needs to be compensated for by multi-point scanning and detection. Each time the measurement point is changed, the surveying instrument needs to be manually re-leveled. The repeated leveling process is cumbersome, consumes a lot of time, and leads to a decrease in work efficiency.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on existing surveying and mapping equipment. Summary of the Invention

[0007] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a design surveying device for building interior decoration, thereby solving the problem mentioned in the background technology that surveying devices require leveling each time they perform multi-point measurements, resulting in time and cost.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a design and surveying device for building interior decoration, comprising an annular slide rail, a balance ring rotatably connected to the inner wall of the annular slide rail, a surveying instrument body disposed above the balance ring, a gravity box suspended below the balance ring by a chain, and a main shaft disposed on the upper surface of the gravity box for driving the surveying instrument body to slide intermittently along the annular slide rail, and a double-layer limiting plate installed at the bottom of the surveying instrument body for controlling the surveying instrument body to always be on the same horizontal plane at any position on the annular slide rail;

[0009] The gravity box is equipped with a gear assembly, a telescopic rod runs through one side of the main shaft, and a guide mechanism for connecting the double-layer limiting plate and the telescopic rod is slidably connected to the upper part of the annular slide rail.

[0010] Preferably, the gear assembly includes a drive gear and a gear ring that meshes with the drive gear. A first motor and a second motor are respectively installed inside the gravity box, and the output shaft of the first motor is fixedly connected to the inner wall of the drive gear.

[0011] Preferably, the bottom of the main shaft passes through the upper surface of the gravity box and is fixedly connected to the inner wall of the gear ring, and the main shaft and the gravity box are rotatably connected by bearings. The middle part of the main shaft is provided with a cavity, and a first rotating shaft is provided in the cavity. The bottom of the first rotating shaft passes through the main shaft and is fixedly connected to the output shaft of the second motor. The top of the first rotating shaft is connected to the bottom of the telescopic rod by a universal joint.

[0012] Preferably, the guiding mechanism includes a guide rod that slides along an annular slide rail and a positioning ring that is rotatably connected to the guide rod. The bottom of the positioning ring is rotatably connected to a second rotating shaft via a bearing. The top of the second rotating shaft is slidably connected to a connecting rod. The top of the connecting rod is fixedly connected to the bottom of the surveying instrument body. The bottom of the second rotating shaft and the top of the telescopic rod are connected via a universal joint.

[0013] Preferably, a support frame is fixedly connected to the upper surface of the main shaft, and a first shaft and a second shaft are rotatably connected to the inner wall of the support frame, and the first shaft and the second shaft are parallel to each other. Two lower connecting rods are fixedly connected to the outer surface of the first shaft, and one end of the two lower connecting rods extends to the outer wall of the positioning ring. Two first protrusions are fixedly connected to the outer wall of the positioning ring at the positions corresponding to the two lower connecting rods.

[0014] Preferably, two upper connecting rods are fixedly connected to the outer surface of the second shaft, and two small gears are fixedly connected to the middle outer surfaces of the first and second shafts, and the two small gears mesh with each other.

[0015] Preferably, the double-layer limiting plate includes an upper limiting plate and a lower limiting plate. The upper limiting plate is fixedly connected to the support frame. A pressure spring is sleeved on the outer surface of the connecting rod. The two ends of the pressure spring are fixedly connected to the upper limiting plate and the lower limiting plate, respectively. Two limiting rods are fixedly connected to the top of the lower limiting plate. The top of the limiting rods penetrates through the upper limiting plate.

[0016] Preferably, one end of each of the two upper connecting rods extends to the outer wall of the lower limiting plate, and two second protrusions are fixedly connected to the outer wall of the lower limiting plate at the positions corresponding to the two upper connecting rods.

[0017] Preferably, two levers are fixedly connected to the outer wall of the connecting rod, and both levers slide against the upper surface of the upper limiting plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] Through the power transmission of the first motor's drive gear, gear ring, and main shaft, the surveying instrument body can revolve around the sun, enabling automatic transfer of surveying points. This allows for multi-directional supplementary surveying of blind spots behind indoor columns, furniture, ceiling designs, and other obstructions from different circumferential positions. Then, through the power transmission of the second motor, the first rotating shaft, and the second rotating shaft, the surveying instrument body can rotate on its own axis. Utilizing the surveying instrument body's own 360° rotation function, it ultimately achieves comprehensive and complete acquisition of three-dimensional data of the entire indoor space.

[0020] Furthermore, the annular slide rail serves as the core support, with three support rods fixedly installed on the outer wall of the annular slide rail. These three support rods are evenly distributed around the center of the annular slide rail, ensuring the stability of the entire device when placed on the ground. Simultaneously, a balance ring is rotatably connected to the inner wall of the annular slide rail. The inner wall of the annular slide rail is rotatably connected to the balance ring, and a gravity box with a preset gravity value is suspended from the bottom of the balance ring by a chain. Utilizing the physical property of gravity naturally drooping, the gravity box will always automatically be centered directly below the balance ring when there is no external interference. The balance ring and gravity box are synchronously constrained by the chain traction, so even if the annular slide rail is tilted, the horizontal center line of the balance ring and gravity box will always remain parallel to the ground.

[0021] Simultaneously, in conjunction with the double-layer limiting plate, which combines an upper and lower limiting plate, the upper limiting plate is rigidly fixed to the support frame, maintaining a constant horizontal plane with the main shaft horizontal reference as a reference. At the same time, two levers fixed to the outer wall of the connecting rod slide against the upper surface of the upper limiting plate. When the connecting rod is driven by the second motor to rotate, the two levers slide synchronously against the surface of the upper limiting plate. The synergistic effect of the double-layer limiting plate, the balance ring, and the gravity box constitutes a gravity self-balancing system, which greatly enhances the adaptability of the surveying instrument body in complex ground environments, ensuring that the surveying instrument body is always at the same height and the same horizontal plane during self-rotation, ensuring that the measured values ​​are more accurate and effective.

[0022] In addition, the lower limiting plate is connected to the upper limiting plate through a pressure spring, and the lower limiting plate is driven by the lower connecting rod, which can adjust the reverse support force of the surveying instrument body in real time. When the annular slide rail shifts in height, the lower limiting plate moves up and down synchronously, dynamically changing the compression degree of the pressure spring, realizing the adaptive matching of the elastic coefficient and the reverse support force. The compression increases and the elastic force is enhanced at the low position, while the compression decreases and the elastic force is weakened at the high position, accurately balancing the force on the surveying instrument body, ensuring the stability of the support force, and further improving the horizontal stability of the surveying instrument body in different environments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a cross-sectional view of the annular slide rail of the present invention.

[0025] Figure 3 This is a cross-sectional view of the gravity box structure of the present invention.

[0026] Figure 4 This is a schematic diagram of the connection structure of the second motor, the telescopic rod, and the surveying instrument body of the present invention.

[0027] Figure 5 This is a schematic diagram of the connection structure of the lower connecting rod, upper connecting rod, and positioning ring of the present invention.

[0028] Figure 6 This is a schematic diagram of the lower connecting rod, upper connecting rod, and positioning ring from another angle.

[0029] Figure 7 This is a schematic diagram of the connection structure between the connecting rod and the double-layer limiting plate of the present invention.

[0030] Figure 8 This is a schematic diagram of the guiding mechanism structure of the present invention.

[0031] In the diagram: 1. Circular slide rail; 2. Balance ring; 3. Surveying instrument body; 4. Gravity box; 401. First motor; 402. Second motor; 5. Main shaft; 501. First rotating shaft; 502. Support frame; 503. First shaft; 504. Second shaft; 505. Lower connecting rod; 506. Upper connecting rod; 507. Pinion gear; 6. Telescopic rod; 7. Guide mechanism; 701. Guide rod; 702. Positioning ring; 703. Second rotating shaft; 704. Connecting rod; 705. Lever; 8. Drive gear; 9. Upper limiting plate; 10. Lower limiting plate; 11. Pressure spring; 12. Limiting rod; 13. First protrusion; 14. Second protrusion; 15. Gear ring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8 The present invention provides a technical solution: a design and surveying device for building interior decoration, including an annular slide rail 1, a balance ring 2 rotatably connected to the inner wall of the annular slide rail 1, a surveying instrument body 3 above the balance ring 2, a gravity box 4 suspended below the balance ring 2 by a chain, and a main shaft 5 disposed on the upper surface of the gravity box 4 for driving the surveying instrument body 3 to slide intermittently along the annular slide rail 1, and a double-layer limiting plate installed at the bottom of the surveying instrument body 3 to control the surveying instrument body 3 to always be on the same horizontal plane at any position of the annular slide rail 1;

[0034] The gravity box 4 is equipped with a gear assembly, and a telescopic rod 6 runs through one side of the main shaft 5. The upper part of the annular slide rail 1 is slidably connected to a guide mechanism 7 for connecting the double-layer limiting plate and the telescopic rod 6.

[0035] The annular slide rail 1 serves as the core support. Three support rods are fixedly installed on the outer wall of the annular slide rail 1. The three support rods are evenly distributed around the center of the annular slide rail 1 to ensure the stability of the entire device when placed on the ground. At the same time, a balance ring 2 is rotatably connected to the inner wall of the annular slide rail 1. The inner wall of the annular slide rail 1 is rotatably connected to the balance ring 2. A gravity box 4 with a preset gravity value is suspended from the bottom of the balance ring 2 by a chain. With the physical property of natural downward gravity, the gravity box 4 will always be automatically centered directly below the balance ring 2 when there is no external interference. The balance ring 2 and the gravity box 4 are synchronously constrained by the chain traction. Even if the annular slide rail 1 is tilted, the horizontal center line of the balance ring 2 and the gravity box 4 will always remain parallel to the ground.

[0036] In addition, the drive spindle 5 is set on the upper surface of the gravity box 4, and with the telescopic rod 6 passing through the spindle 5 and the guide mechanism 7 slidingly connected to the annular slide rail 1, the driving surveying instrument body 3 is driven to slide smoothly along the annular slide rail 1 intermittently. While rotating, it moves intermittently along the annular slide rail 1 and automatically transfers to the next surveying point without the need for manual handling and adjustment.

[0037] Meanwhile, a double-layer limiting plate is added to the bottom of the surveying instrument body 3, which complements the gravity self-balancing structure. Even if the circular slide rail 1 is slightly deviated due to uneven ground, the double-layer limiting plate can accurately constrain the posture of the surveying instrument body 3, ensuring that it is always on the same horizontal plane at any position of the circular slide rail 1, avoiding horizontal deviation caused by vibration or ground undulation during the transfer process; thus improving surveying efficiency and data consistency.

[0038] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the gear assembly includes a drive gear 8 and a gear ring 15 that meshes with the drive gear 8. A first motor 401 and a second motor 402 are installed inside the gravity box 4. The output shaft of the first motor 401 is fixedly connected to the inner wall of the drive gear 8.

[0039] The bottom of the main shaft 5 passes through the upper surface of the gravity box 4 and is fixedly connected to the inner wall of the gear ring 15. The main shaft 5 and the gravity box 4 are rotatably connected by bearings. The middle part of the main shaft 5 is provided with a cavity, and the cavity is provided with a first rotating shaft 501. The bottom of the first rotating shaft 501 passes through the main shaft 5 and is fixedly connected to the output shaft of the second motor 402. The top of the first rotating shaft 501 is connected to the bottom of the telescopic rod 6 by a universal joint.

[0040] The guiding mechanism 7 includes a guide rod 701 that slides along the annular slide rail 1, and a positioning ring 702 that is rotatably connected to the guide rod 701. The bottom of the positioning ring 702 is rotatably connected to a second rotating shaft 703 via a bearing. The top of the second rotating shaft 703 is slidably connected to a connecting rod 704. The top of the connecting rod 704 is fixedly connected to the bottom of the surveying instrument body 3. The bottom of the second rotating shaft 703 is connected to the top of the telescopic rod 6 via a universal joint.

[0041] It should be noted that a first motor 401 and a second motor 402 are installed inside the gravity box 4. The first motor 401 and the second motor 402 are used as drive sources. The output shaft of the first motor 401 is fixed to the drive gear 8. The output shaft of the second motor 402 is connected to the telescopic rod 6 through the first rotating shaft 501, forming two independent transmission links, which drive the rotation and revolution of the surveying instrument body 3 respectively. The first motor 401 is used to drive the drive gear 8 to rotate. The gear ring 15 meshing with the drive gear 8 rotates synchronously. The inner wall of the gear ring 15 is fixedly connected to the bottom of the main shaft 5. When the first motor 401 is started, it drives the gear ring 15 and the main shaft 5 to rotate. During the rotation process, it can move the telescopic rod 6 to rotate synchronously.

[0042] Among them, the starting of the first motor 401 is intermittent, which drives the gear ring 15 and the main shaft 5 to rotate intermittently. During the rotation process, it can move the telescopic rod 6 to rotate synchronously and rotate at a gap, which further drives the surveying instrument body 3 to slide smoothly and intermittently along the annular slide rail 1, realizing automatic transfer of surveying points. It has high transmission efficiency and stable operation.

[0043] In addition, a guide mechanism 7 is set on the annular slide rail 1. The guide mechanism 7 connects the annular slide rail 1 and the telescopic rod 6. During the dwell time of the main shaft 5 during the rotation gap, the second motor 402 drives the surveying instrument body 3 to rotate.

[0044] Specifically, for example Figure 4 and Figure 8 As shown, the guiding mechanism 7 mainly consists of a guide rod 701 and a positioning ring 702. The bottom of the guide rod 701 is equipped with a steel ball, and an annular groove is provided on the annular slide rail 1. The steel ball slides within the annular groove, which limits and guides the guide rod 701, ensuring that the entire surveying instrument body 3 always slides along the annular slide rail 1. The positioning ring 702 allows the surveying instrument body 3 to rotate 360° in the horizontal plane. The bottom of the positioning ring 702 is connected to the second rotating shaft 703 via a bearing. The second rotating shaft 703 is connected to the top of the telescopic rod 6 via a universal joint. The bottom of the telescopic rod 6 is connected to the first rotating shaft 501 via a universal joint. The top of the second rotating shaft 703 is slidably connected to a connecting rod 704, which is fixedly connected to the surveying instrument body 3. When the second motor 402 rotates, it can drive the first rotating shaft 501, the telescopic rod 6, the second rotating shaft 703, and the connecting rod 704 to rotate synchronously in one section of the surveying instrument body 3. Moreover, the first motor 401 and the second motor 402 are independently controlled, and the whole surveying instrument body 3 is rotated. Through the connection and cooperation of two universal joints, not only is the power transmission realized, but more importantly, it allows the upper structure to adjust its posture within a certain range, effectively compensating for the angle deviation caused by uneven ground and ensuring the smoothness of transmission.

[0045] Through the power transmission of the first motor 401, the drive gear 8, the gear ring 15, and the main shaft 5, the surveying instrument body 3 is made to revolve as a whole, thereby conducting multi-directional supplementary measurements of blind spots behind indoor columns, furniture, ceiling designs, and other obstructions from different circumferential positions. Then, through the power transmission of the second motor 402, the first rotating shaft 501, and the second rotating shaft 703, the surveying instrument body 3 is made to rotate on its own axis. Utilizing the 360° rotation function of the surveying instrument body 3 itself, the comprehensive and complete collection of three-dimensional data of the entire indoor space is finally achieved.

[0046] In this embodiment, as Figure 2 , Figure 5 and Figure 6 As shown, a support frame 502 is fixedly connected to the upper surface of the main shaft 5. The inner wall of the support frame 502 is rotatably connected to a first shaft 503 and a second shaft 504, and the first shaft 503 and the second shaft 504 are parallel to each other. Two lower connecting rods 505 are fixedly connected to the outer surface of the first shaft 503, and one end of the two lower connecting rods 505 extends to the outer wall of the positioning ring 702. Two first protrusions 13 are fixedly connected to the outer wall of the positioning ring 702 corresponding to the positions of the two lower connecting rods 505.

[0047] Two upper connecting rods 506 are fixedly connected to the outer surface of the second shaft 504, and two small gears 507 are fixedly connected to the middle outer surfaces of the first shaft 503 and the second shaft 504, and the two small gears 507 mesh with each other.

[0048] It should be noted that a support frame 502 is fixedly connected to the upper surface of the main shaft 5. The inner wall of the support frame 502 is rotatably connected to a first shaft 503 and a second shaft 504 arranged in parallel via bearings. Two lower connecting rods 505 are fixedly connected to the outer surface of the first shaft 503, and two upper connecting rods 506 are fixedly connected to the outer surface of the second shaft 504.

[0049] Among them, one end of the two lower connecting rods 505 extends and connects to the first protrusion 13 on the outer wall of the positioning ring 702. Together with the guide rod 701 on one side, the positioning ring 702 is fixed in three points. Through the connection of the positioning ring 702, in a specific environment, such as when the ground is uneven, the positioning ring 702 can pull the lower connecting rods 505 together with the lever 705 to cause angular deflection.

[0050] For example, when the positioning ring 702 and the guide rod 701 move together to the high position of the annular slide rail 1, the positioning ring 702 and the guide rod 701 shift upward along the annular guide rail as a whole, causing the lower connecting rod 505 to deflect upward about the axis of the first shaft 503.

[0051] Similarly, when the positioning ring 702 and the guide rod 701 move together to the low position of the annular slide rail 1, the positioning ring 702 and the guide rod 701 shift downward along the annular guide rail as a whole, causing the lower connecting rod 505 to deflect downward about the axis of the first shaft 503.

[0052] Furthermore, two small gears 507 are fixedly connected to the outer surface of the middle part of the first shaft 503 and the second shaft 504, respectively, and the two small gears 507 mesh with each other. By using the meshing of the small gears 507, the first shaft 503 and the second shaft 504 are reversed, thereby ensuring the synchronization of the upper connecting rod 506 and the lower connecting rod 505. This provides a signal for the subsequent operation of the double-layer limiting plate. When the upper connecting rod 506 and the lower connecting rod 505 move synchronously, the position change information of the positioning ring 702 can be accurately transmitted to the double-layer limiting plate.

[0053] In this embodiment, as Figure 5 , Figure 6 and Figure 7 As shown, the double-layer limiting plate includes an upper limiting plate 9 and a lower limiting plate 10. The upper limiting plate 9 is fixedly connected to the support frame 502. A pressure spring 11 is sleeved on the outer surface of the connecting rod 704. The two ends of the pressure spring 11 are fixedly connected to the upper limiting plate 9 and the lower limiting plate 10 respectively. Two limiting rods 12 are fixedly connected to the top of the lower limiting plate 10. The top of the limiting rods 12 penetrates the upper limiting plate 9.

[0054] One end of each of the two upper connecting rods 506 extends to the outer side wall of the lower limiting plate 10, and two second protrusions 14 are fixedly connected to the outer side wall of the lower limiting plate 10 at the positions corresponding to the two upper connecting rods 506.

[0055] Two levers 705 are fixedly connected to the outer wall of the connecting rod 704, and both levers 705 slide against the upper surface of the upper limiting plate 9.

[0056] It should be noted that the double-layer limiting plate is composed of an upper limiting plate 9 and a lower limiting plate 10, and is connected by a pressure spring 11. The upper limiting plate 9 is fixedly connected to the support frame 502 and serves as the core support component of the entire double-layer limiting plate. As long as the horizontal position of the support frame 502 and the main shaft 5 remains unchanged, the horizontal plane of the upper limiting plate 9 can remain unchanged. The upper limiting plate 9 and the lower limiting plate 10 are connected by a pressure spring 11.

[0057] Furthermore, two second protrusions 14 are fixedly connected to the outer wall of the lower limiting plate 10 at the positions corresponding to the two upper connecting rods 506. One end of the two upper connecting rods 506 is connected to the second protrusions 14. When the position of the positioning ring 702 changes, the lower connecting rod 505 drives the first shaft 503 to rotate. Through the meshing of the two small gears 507, the second shaft 504 rotates in the opposite direction, and the upper connecting rod 506 moves accordingly, thereby causing the lower limiting plate 10 to undergo relative displacement.

[0058] Specifically, when the positioning ring 702 and the guide rod 701 move together to the high position of the annular slide rail 1, the positioning ring 702 and the guide rod 701 shift upward along the annular guide rail as a whole, causing the lower connecting rod 505 to deflect upward about the axis of the first shaft 503. Through the meshing of the two small gears 507, the second shaft 504 rotates in the opposite direction, and the upper connecting rod 506 causes the lower limiting plate 10 to move downward. The distance between the upper limiting plate 9 and the lower limiting plate 10 is widened, the compression degree of the pressure spring 11 is reduced, and the elastic coefficient of the pressure spring 11 is reduced.

[0059] When the positioning ring 702 and the guide rod 701 move to the low position of the annular slide rail 1, the positioning ring 702 and the guide rod 701 shift downward along the annular guide rail as a whole, causing the lower connecting rod 505 to deflect downward around the axis of the first shaft 503. Through the meshing of the two small gears 507, the second shaft 504 rotates in the opposite direction, and the upper connecting rod 506 causes the lower limiting plate 10 to move upward. The distance between the upper limiting plate 9 and the lower limiting plate 10 decreases, the compression degree of the pressure spring 11 increases, and the elastic coefficient of the pressure spring 11 increases.

[0060] In addition, two limiting rods 12 are fixedly connected to the top of the lower limiting plate 10. The top of the limiting rods 12 penetrates the upper limiting plate 9. The limiting rods 12 can guide and limit the movement of the lower limiting plate 10, prevent the lower limiting plate 10 from deviating or shaking during the movement, ensure the stability and accuracy of its movement, and make the lower limiting plate 10 only move vertically up and down along the limiting rods 12, generating axial compressive force on the pressure spring 11.

[0061] Meanwhile, the two levers 705 fixed to the outer wall of the connecting rod 704 slide against the upper surface of the upper limiting plate 9. When the connecting rod 704 is driven by the second motor 402 to rotate, the two levers 705 slide synchronously against the surface of the upper limiting plate 9. The upper limiting plate 9 forms a rigid support for the levers 705 and the surveying instrument body 3. Even when the position of the positioning ring 702 changes, under the action of the gravity of the surveying instrument body 3, the connecting rod 704 and the levers 705 always remain against the upper surface of the upper limiting plate 9. When the positioning ring 702 moves down, the connecting rod 704 and the levers 705 are supported by the upper limiting plate 9, and the connecting rod 704 slides upward along the second rotating shaft 703 in the opposite direction to ensure that the height of the surveying instrument body 3 remains unchanged.

[0062] Similarly, when the positioning ring 702 moves upward, due to the gravity of the surveying instrument body 3 itself, even if the positioning ring 702 moves upward, the connecting rod 704 and the lever 705 still adhere to the upper surface of the upper limit plate 9. The connecting rod 704 slides downward along the second rotating shaft 703 to ensure that the surveying instrument body 3 is always at the same height, further improving the horizontal stability of the surveying instrument body 3 in different environments.

[0063] Furthermore, in this embodiment, the upper limiting plate 9 is horizontal. When the surveying instrument body 3 rotates, the two levers 705 always adhere to the upper surface of the upper limiting plate 9, ensuring that the entire surveying instrument body 3 remains horizontal during rotation, thus ensuring that the surveying data is more accurate and reliable. The synergistic effect of the double-layer limiting plate, the balance ring 2, and the gravity box 4 constitutes a gravity self-balancing system, which greatly enhances the adaptability of the surveying instrument body 3 in complex ground environments.

[0064] In addition, it should be noted that the upper limiting plate 9 is used to hold the surveying instrument body 3 in place to prevent it from shifting. At the same time, a pressure spring with a self-adjusting elastic coefficient is added at the bottom to form a reverse support. The pressure spring 11 plays a buffering and adjusting role in the double limiting plate. In the high position area of ​​the annular slide rail 1, the compression degree of the pressure spring 11 decreases, the elastic coefficient of the pressure spring 11 decreases, and the reverse support force provided decreases. In the low position area of ​​the annular slide rail 1, the compression degree of the pressure spring 11 increases, the elastic coefficient of the pressure spring 11 increases, and the reverse support force provided is greater. The pressure spring 11 can automatically adjust the elastic coefficient and reverse support force according to the changes in the height of the annular slide rail 1, further changing the support force on the balance surveying instrument body 3. When the bottom connecting rod 704 and the second rotating shaft 703 are relatively displaced, the reverse support force on the bottom of the surveying instrument body 3 is always kept in a relatively stable state, further maintaining the stable rotation of the surveying instrument body 3 and avoiding tilting or shaking of the surveying instrument body 3 due to uneven force during rotation, thus further ensuring the accuracy and stability of the surveying data.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A design surveying device for building interior decoration, comprising an annular slide rail (1), a balance ring (2) rotatably connected to the inner wall of the annular slide rail (1), a surveying instrument body (3) provided above the balance ring (2), and a gravity box (4) suspended below the balance ring (2) by a chain, characterized in that: It also includes a main shaft (5) located on the upper surface of the gravity box (4) for driving the surveying instrument body (3) to slide intermittently along the annular slide rail (1), and a double-layer limiting plate installed at the bottom of the surveying instrument body (3) to control the surveying instrument body (3) to always be on the same horizontal plane at any position of the annular slide rail (1). The gravity box (4) is equipped with a gear assembly inside. A telescopic rod (6) runs through one side of the main shaft (5). A guide mechanism (7) for connecting the double-layer limiting plate and the telescopic rod (6) is slidably connected on the annular slide rail (1). The gear assembly includes a drive gear (8) and a gear ring (15) meshing with the drive gear (8). The gravity box (4) is equipped with a first motor (401) and a second motor (402). The output shaft of the first motor (401) is fixedly connected to the inner wall of the drive gear (8). The bottom of the main shaft (5) passes through the upper surface of the gravity box (4) and is fixedly connected to the inner wall of the gear ring (15). The main shaft (5) and the gravity box (4) are rotatably connected by bearings. The main shaft (5) has a cavity in the middle and a first rotating shaft (501) is provided in the cavity. The bottom of the first rotating shaft (501) passes through the main shaft (5) and is fixedly connected to the output shaft of the second motor (402). The top of the first rotating shaft (501) is connected to the bottom of the telescopic rod (6) by a universal joint. The guiding mechanism (7) includes a guide rod (701) that slides along the annular slide rail (1) and a positioning ring (702) that is rotatably connected to the guide rod (701). The bottom of the positioning ring (702) is rotatably connected to a second rotating shaft (703) via a bearing. The top of the second rotating shaft (703) is slidably connected to a connecting rod (704). The top of the connecting rod (704) is fixedly connected to the bottom of the surveying instrument body (3). The bottom of the second rotating shaft (703) is connected to the top of the telescopic rod (6) via a universal joint.

2. The design and surveying device for building interior decoration according to claim 1, characterized in that: A support frame (502) is fixedly connected to the upper surface of the main shaft (5). The inner wall of the support frame (502) is rotatably connected to a first shaft (503) and a second shaft (504), and the first shaft (503) and the second shaft (504) are parallel to each other. Two lower connecting rods (505) are fixedly connected to the outer surface of the first shaft (503), and one end of the two lower connecting rods (505) extends to the outer wall of the positioning ring (702). Two first protrusions (13) are fixedly connected to the outer wall of the positioning ring (702) corresponding to the positions of the two lower connecting rods (505).

3. The design and surveying device for building interior decoration according to claim 2, characterized in that: Two upper connecting rods (506) are fixedly connected to the outer surface of the second shaft (504), and two small gears (507) are fixedly connected to the middle outer surface of the first shaft (503) and the second shaft (504), and the two small gears (507) mesh with each other.

4. The design and surveying device for building interior decoration according to claim 1, characterized in that: The double-layer limiting plate includes an upper limiting plate (9) and a lower limiting plate (10). The upper limiting plate (9) is fixedly connected to the support frame (502). A pressure spring (11) is sleeved on the outer surface of the connecting rod (704). The two ends of the pressure spring (11) are fixedly connected to the upper limiting plate (9) and the lower limiting plate (10) respectively. Two limiting rods (12) are fixedly connected to the top of the lower limiting plate (10). The top of the limiting rods (12) penetrates the upper limiting plate (9).

5. The design and surveying device for building interior decoration according to claim 3, characterized in that: One end of each of the two upper connecting rods (506) extends to the outer wall of the lower limiting plate (10), and two second protrusions (14) are fixedly connected to the outer wall of the lower limiting plate (10) at the positions corresponding to the two upper connecting rods (506).

6. The design and surveying device for building interior decoration according to claim 4, characterized in that: Two levers (705) are fixedly connected to the outer wall of the connecting rod (704), and both levers (705) slide against the upper surface of the upper limiting plate (9).

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