Land distance measuring device

Abstract

The invention relates to the technical field of surveying and mapping engineering, and particularly discloses a land distance measuring device which comprises a mounting sleeve frame, a distance measuring wheel is rotatably connected to the inner wall of the mounting sleeve frame, and a first connecting rod is fixedly connected to one side of the distance measuring wheel; through the arrangement of the distance measuring wheel, the arc-shaped plate, the control ring, the electric sliding rail and the limiting insertion block, during use, the distance measuring wheel rolls on the land surface to measure the distance, the arc-shaped plate is matched with the sensing assembly in the control ring, the sensing assembly can detect the number of rotation times of the arc-shaped plate, and therefore the rolling distance of the distance measuring wheel is calculated; a sensing assembly on the inner wall of a control ring transmits data to a controller for processing by detecting rotation of an arc-shaped plate, a limiting clamping groove in the tail end of a second connecting rod is matched with a limiting insertion block, the limiting insertion block is inserted into the limiting clamping groove, then the distance measuring wheel is prevented from continuing to rotate, and after the limiting insertion block is pulled out of the limiting clamping groove, the distance measuring wheel can continue to rotate, so that the distance measuring effect is improved. Therefore, automatic data acquisition and processing are realized, and the measurement efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of surveying and mapping engineering, and particularly relates to a land distance measuring device. Background Art

[0002] In the technical field of surveying and mapping engineering, land distance measurement has always been an indispensable part of activities such as land planning, agricultural management, and engineering construction. With the progress of technology, land distance measurement technology has evolved from traditional simple tools such as tape measures and benchmarks to more advanced laser rangefinders, GPS positioning systems, etc. The progress of these technologies has greatly improved the efficiency and accuracy of measurement, especially playing an important role in large-scale and complex terrain measurements.

[0003] However, despite the significant progress of the existing technology, there are still some deficiencies in practical applications. Especially in scenarios where precise land distance measurement is required and the terrain is complex, the existing technology often fails to meet the requirements of efficient and accurate measurement. For example, traditional tape measure and benchmark measurement methods not only have high labor intensity and low efficiency, but are also severely restricted by the terrain and are difficult to measure in rough or inaccessible areas. Although laser rangefinders have fast measurement speed and high accuracy, their measurement effects will also be greatly reduced in complex terrains or environments with many obstacles. Although the GPS positioning system can achieve large-scale and high-precision measurement, its equipment cost is relatively high, and the measurement accuracy will be affected in areas with severe signal occlusion (such as forests, canyons, etc.), resulting in poor use effects of the device. Therefore, it is necessary for staff to improve it. Summary of the Invention

[0004] The purpose of the present invention is to provide a land distance measuring device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A land distance measuring device, comprising: An installation sleeve frame; A distance measuring wheel is rotatably connected to the inner wall of the installation sleeve frame. One side of the distance measuring wheel is fixedly connected with a first connecting rod. The surface of the first connecting rod is fixedly connected with a first bearing. One side of the installation sleeve frame is fixedly connected with a first socket box, and the inner wall of the first socket box is sleeved on the surfaces of the first connecting rod and the first bearing. The surface of the first connecting rod is fixedly connected with multiple groups of arc-shaped plates. The inner wall of the first socket box is fixedly connected with a control ring, and sensing components are fixedly connected to the four circumferential parts of the inner wall of the control ring; On the other side of the ranging wheel, a second connecting rod is fixedly connected. On the surface of the second connecting rod, a second bearing is fixedly connected. On the other side of the mounting sleeve frame, a second socket box is fixedly connected, and the inner wall of the second socket box is sleeved on the surfaces of the second connecting rod and the second bearing. At the end of the second connecting rod, a limit card slot is opened. Inside the inner wall of the second socket box, an electric slide rail is fixedly connected. Inside the inner wall of the electric slide rail, a moving block is slidably connected. On the surface of the moving block, a limit insertion block is fixedly connected, and the surface of the limit insertion block is inserted into the inner wall of the limit card slot.

[0006] Preferably, on both sides of the mounting sleeve frame, inverted V-shaped sleeve frames are fixedly connected. On both sides of the inner wall of the inverted V-shaped sleeve frame, first electric telescopic rods are fixedly connected. The output end of the first electric telescopic rod is fixedly connected with a support column.

[0007] Preferably, on the top of the mounting sleeve frame, a positioning frame is fixedly connected. On both sides of the top of the positioning frame, mounting rods are fixedly connected. The top ends of the mounting rods are sleeved with fixed tubes. At the top ends of the mounting rods, shock-absorbing springs are connected, and the top ends of the shock-absorbing springs are inserted into the inner walls of the fixed tubes.

[0008] Preferably, on the top of the positioning frame, a telescopic support is fixedly connected. Inside the telescopic support, a hydraulic rod is inserted. The top end of the hydraulic rod is fixedly connected to the inner top wall of the telescopic support, and the output end of the hydraulic rod is lapped on the inner bottom wall of the telescopic support.

[0009] Preferably, at the top end of the telescopic support, an assembly platform is fixedly connected. On one side of the top of the assembly platform, a mounting clamp block is fixedly connected. On the inner bottom wall of the mounting clamp block, a servo motor is fixedly connected. The output end of the servo motor is equipped with a driving rod. At the front end of the driving rod, a driving wheel is fixedly connected. On the surface of the driving wheel, a transmission belt is rotatably connected. Inside the inner wall of the transmission belt, a transmission wheel is rotatably connected. On one side of the transmission wheel, a movable rod is fixedly connected. At one end of the movable rod, a camera is fixedly connected, and both sides of the camera are rotatably connected to the inner wall of the mounting clamp block.

[0010] Preferably, inside the inner wall of the assembly platform, a controller is fixedly connected, and both sides of the bottom of the assembly platform are fixedly connected to the top ends of the fixed tubes.

[0011] Preferably, on one side of the top of the assembly platform, an inclined support rod is fixedly connected. On both sides of the top end of the inclined support rod, grips are fixedly connected. At the top end of the inclined support rod, a display screen is fixedly connected, and the display screen is electrically connected to the controller.

[0012] Compared with the prior art, the beneficial effects of the present invention are: (1) Through the settings of the distance measuring wheel, arc plate, control ring, sensing component, electric slide rail and limit insertion block, during use, the distance measuring wheel is rotatably connected to the mounting sleeve frame through the first connecting rod and the second connecting rod, and can roll on the land surface to measure the distance. The arc plate is fixed on the surface of the first connecting rod and cooperates with the sensing component in the control ring. The sensing component can detect the number of rotations of the arc plate, thereby calculating the rolling distance of the distance measuring wheel. The sensing component on the inner wall of the control ring transmits data to the controller for processing by detecting the rotation of the arc plate. A limit card slot is provided at the tail end of the second connecting rod, which cooperates with the moving block and the limit insertion block on the electric slide rail. When the limit insertion block is inserted into the limit card slot, the distance measuring wheel is prevented from rotating further. After the limit insertion block is pulled out of the limit card slot, the distance measuring wheel can continue to rotate. At the same time, through the cooperation of the sensing component and the controller, automatic data collection and processing are realized, improving the efficiency and accuracy of measurement.

[0013] (2) Through the settings of the positioning frame, mounting rod, fixed pipe, shock-absorbing spring, telescopic support and hydraulic rod, during use, the shock-absorbing spring can absorb the vibration generated during the movement or measurement of the device, reduce the influence of external impact on the measurement accuracy, and ensure the accuracy of the measurement data. The telescopic support is fixed on the top of the positioning frame, and a hydraulic rod is inserted inside. The top end of the hydraulic rod is fixed on the inner top wall of the telescopic support, and the output end is lapped on the inner bottom wall of the telescopic support. Through the telescoping of the hydraulic rod, the height of the telescopic support can be adjusted, thereby controlling the telescopic range of the shock-absorbing spring to adapt to different measurement environments and terrain conditions. This not only enhances the stability and seismic resistance of the device, but also enables the device to flexibly adapt to different terrains and measurement requirements through the adjustment function of the hydraulic rod, ensuring the smoothness and accuracy during the measurement process. At the same time, the addition of the shock-absorbing spring further improves the anti-interference ability of the device and guarantees the reliability of the measurement results.

[0014] (3) Through the settings of the assembly platform, camera and display screen, during use, the rotation of the servo motor drives the drive rod and the drive wheel to rotate, and then drives the movable rod through the transmission belt and the transmission wheel, enabling the camera to rotate at multiple angles within the mounting clamp block, realizing multi-angle monitoring and image collection of the surrounding environment, facilitating real-time observation and data recording during the measurement process. The inclined strut is fixed on one side of the top of the assembly platform, and grips are provided on both sides of its top end, facilitating the operator to hold the device for movement and adjustment. At the same time, the display screen is electrically connected to the controller and can display the measurement data, the images collected by the camera and other relevant information in real time, facilitating the operator to intuitively understand the measurement status and results. This not only realizes the automatic control and multi-functional integration of the device, but also improves the intelligent level and operation convenience of the device through the cooperation of the camera and the display screen, making the measurement process more efficient and accurate. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional view of the present invention; Figure 2 Stereogram of the distance measuring wheel of the present invention; Figure 3 Stereogram of the mounting sleeve frame of the present invention; Figure 4 Stereogram of the support column of the present invention; Figure 5 Stereogram of the assembly platform of the present invention; Figure 6 Stereogram of the camera of the present invention; Figure 7 For the present invention Figure 2 Enlarged view of part A in; Figure 8 For the present invention Figure 3 Enlarged view of part B in; In the figure: 1, mounting sleeve frame; 2, distance measuring wheel; 3, first connecting rod; 4, first bearing; 5, first socket box; 6, arc plate; 7, control ring; 8, sensing component; 9, second connecting rod; 10, second bearing; 11, second socket box; 12, electric slide rail; 13, moving block; 14, limit insertion block; 15, inverted V-shaped sleeve frame; 16, first electric telescopic rod; 17, support column; 18, positioning frame; 19, mounting rod; 20, fixed pipe; 21, shock absorption spring; 22, telescopic bracket; 23, hydraulic rod; 24, assembly platform; 25, mounting clamp block; 26, servo motor; 27, driving rod; 28, driving wheel; 29, transmission belt; 30, transmission wheel; 31, movable rod; 32, camera; 33, inclined support rod; 34, grip; 35, display screen. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Embodiment 1: Please refer to Figures 1 to 8 As shown, a land distance measuring device includes: a mounting sleeve frame 1; The inner wall of the mounting sleeve frame 1 is rotatably connected to a distance measuring wheel 2. One side of the distance measuring wheel 2 is fixedly connected to a first connecting rod 3. The surface of the first connecting rod 3 is fixedly connected to a first bearing 4. One side of the mounting sleeve frame 1 is fixedly connected to a first socket box 5, and the inner wall of the first socket box 5 is sleeved on the surfaces of the first connecting rod 3 and the first bearing 4. The surface of the first connecting rod 3 is fixedly connected with multiple groups of arc plates 6. The inner wall of the first socket box 5 is fixedly connected with a control ring 7, and sensing components 8 are fixedly connected to the four circumferential parts of the inner wall of the control ring 7; On the other side of the distance measuring wheel 2, a second connecting rod 9 is fixedly connected. On the surface of the second connecting rod 9, a second bearing 10 is fixedly connected. On the other side of the mounting sleeve frame 1, a second socket box 11 is fixedly connected. And the inner wall of the second socket box 11 is sleeved on the surfaces of the second connecting rod 9 and the second bearing 10. A limit card slot is opened at the tail end of the second connecting rod 9. An electric slide rail 12 is fixedly connected to the inner wall of the second socket box 11. A moving block 13 is slidably connected to the inner wall of the electric slide rail 12. A limit insertion block 14 is fixedly connected to the surface of the moving block 13. And the surface of the limit insertion block 14 is inserted into the inner wall of the limit card slot. Inverted V-shaped sleeve frames 15 are fixedly connected to both sides of the mounting sleeve frame 1. On both sides of the inner wall of the inverted V-shaped sleeve frame 15, a first electric telescopic rod 16 is fixedly connected. The output end of the first electric telescopic rod 16 is fixedly connected with a support column 17.

[0018] During use, the mounting sleeve frame 1 supports and connects other components. The distance measuring wheel 2 is rotatably connected to the mounting sleeve frame 1 through the first connecting rod 3 and the second connecting rod 9, and can roll on the land surface to measure the distance. The first bearing 4 and the second bearing 10 are respectively installed on the first connecting rod 3 and the second connecting rod 9 to ensure that the distance measuring wheel 2 can rotate smoothly. The first socket box 5 and the second socket box 11 are respectively sleeved on the first connecting rod 3 and the second connecting rod 9 to play a role in fixing and supporting. The arc-shaped plate 6 is fixed on the surface of the first connecting rod 3 and cooperates with the sensing component 8 in the control ring 7. The sensing component 8 can detect the number of rotations of the arc-shaped plate 6, so as to calculate the rolling distance of the distance measuring wheel 2. The sensing component 8 on the inner wall of the control ring 7 transmits the data to the controller for processing by detecting the rotation of the arc-shaped plate 6. A limit card slot is provided at the tail end of the second connecting rod 9, which cooperates with the moving block 13 and the limit insertion block 14 on the electric slide rail 12. When the limit insertion block 14 is inserted into the limit card slot, the distance measuring wheel 2 is prevented from continuing to rotate. After the limit insertion block 14 is pulled out of the limit card slot, the distance measuring wheel can continue to rotate. The inverted V-shaped sleeve frames 15 are fixed on both sides of the mounting sleeve frame 1. The first electric telescopic rods 16 inside can adjust the height of the support columns 17, so that the device is convenient to keep stable when the device is not in use and prevent it from tilting excessively, improving the accuracy of distance measurement. At the same time, through the cooperation of the sensing component 8 and the controller, automatic data collection and processing are realized, improving the efficiency and accuracy of measurement.

[0019] Embodiment 2: Please refer to Figures 1 to 8 As shown, a positioning frame 18 is fixedly connected to the top of the mounting sleeve frame 1. On both sides of the top of the positioning frame 18, mounting rods 19 are fixedly connected. The top ends of the mounting rods 19 are sleeved with fixed tubes 20. The top ends of the mounting rods 19 are connected with shock-absorbing springs 21. And the top ends of the shock-absorbing springs 21 are inserted into the inner walls of the fixed tubes 20. A telescopic support 22 is fixedly connected to the top of the positioning frame 18. A hydraulic rod 23 is inserted into the inner wall of the telescopic support 22. And the top end of the hydraulic rod 23 is fixedly connected to the inner top wall of the telescopic support 22. The output end of the hydraulic rod 23 abuts against the inner bottom wall of the telescopic support 22.

[0020] During use, the positioning frame 18 is fixed to the top of the mounting sleeve frame 1 as the support foundation of the upper structure to ensure the stability of the entire device. The mounting rod 19 is fixed to both sides of the top of the positioning frame 18 to play a connecting and supporting role. The top of the mounting rod 19 is sleeved with a fixed tube 20. The inside of the fixed tube 20 is provided with a shock-absorbing spring 21. The shock-absorbing spring 21 can absorb the vibration generated during the movement or measurement of the device, reduce the impact of external shocks on the measurement accuracy, and ensure the accuracy of the measurement data. The telescopic support 22 is fixed to the top of the positioning frame 18, and a hydraulic rod 23 is inserted inside. The top of the hydraulic rod 23 is fixed to the inner top wall of the telescopic support 22, and the output end is lapped on the inner bottom wall of the telescopic support 22. By the telescopic movement of the hydraulic rod 23, the height of the telescopic support 22 can be adjusted, thereby controlling the telescopic range of the shock-absorbing spring 21 to adapt to different measurement environments and terrain conditions. This not only enhances the stability and seismic resistance of the device but also enables the device to flexibly adapt to different terrains and measurement requirements through the adjustment function of the hydraulic rod 23, ensuring the smoothness and accuracy during the measurement process.

[0021] Example 3: Please refer to Figures 1 to 8 As shown, the top of the telescopic support 22 is fixedly connected with an assembly platform 24. On one side of the top of the assembly platform 24, there is a fixedly connected mounting clamp 25. The inner bottom wall of the mounting clamp 25 is fixedly connected with a servo motor 26. The output end of the servo motor 26 is equipped with a driving rod 27. The front end of the driving rod 27 is fixedly connected with a driving wheel 28. The surface of the driving wheel 28 is rotationally connected with a transmission belt 29. The inner wall of the transmission belt 29 is rotationally connected with a transmission wheel 30. One side of the transmission wheel 30 is fixedly connected with a movable rod 31. One end of the movable rod 31 is fixedly connected with a camera 32. The two sides of the camera 32 are both rotationally connected to the inner wall of the mounting clamp 25. The inner wall of the assembly platform 24 is fixedly connected with a controller. The bottom sides of the assembly platform 24 are both fixedly connected to the top of the fixed tube 20. One side of the top of the assembly platform 24 is fixedly connected with an inclined strut 33. Both sides of the top of the inclined strut 33 are fixedly connected with grips 34. The top of the inclined strut 33 is fixedly connected with a display screen 35, and the display screen 35 is electrically connected to the controller.

[0022] During use, the assembly platform 24 is fixed at the top of the telescopic support 22 to carry and connect other functional components. The mounting clamp 25 is fixed on one side of the top of the assembly platform 24, and a servo motor 26 is installed inside. After the servo motor 26 is powered on, the rotation of the servo motor 26 drives the drive rod 27 and the drive wheel 28 to rotate, and then drives the movable rod 31 through the transmission belt 29 and the transmission wheel 30, enabling the camera 32 to rotate at multiple angles within the mounting clamp 25, realizing multi-angle monitoring and image acquisition of the surrounding environment, facilitating real-time observation and data recording during the measurement process. The inclined strut 33 is fixed on one side of the top of the assembly platform 24, and grips 34 are provided on both sides of its top, facilitating the operator to hold the device for movement and adjustment. At the same time, a display screen 35 is also fixed at the top of the inclined strut 33. The display screen 35 is electrically connected to the controller and can display measurement data, images collected by the camera 32, and other relevant information in real time, facilitating the operator to intuitively understand the measurement status and results.

[0023] Embodiment 4: Please refer to Figures 1 to 8 As shown, when the staff needs to accurately measure a newly purchased farmland for planning the planting area, irrigation system, and road layout, due to the complex terrain of the farmland with certain undulations and unevenness, traditional measurement tools are difficult to quickly and accurately complete the measurement task, and it is decided to use this local distance measurement device for measurement.

[0024] The operator removes the land distance measurement device from the transport vehicle and checks whether all components are in good condition to ensure the normal operation of components such as the distance measuring wheel 2, the camera 32, and the display screen 35.

[0025] Place the device at the starting measurement point of the farmland through the grip 34, and adjust the first electric telescopic rod 16 in the inverted V-shaped sleeve 15 to make the support column 17 adapt to the undulation of the ground and ensure that the device remains in a horizontal state.

[0026] Measurement start: The operator starts the device, and the distance measuring wheel 2 starts to roll on the ground. The distance measuring wheel 2 is rotatably connected to the mounting sleeve 1 through the first connecting rod 3 and the second connecting rod 9. The arc-shaped plate 6 rotates with the rotation of the distance measuring wheel 2. The sensing component 8 in the control ring 7 detects the number of rotations of the arc-shaped plate 6, calculates the rolling distance of the distance measuring wheel 2, and transmits the data to the controller.

[0027] During the measurement process, the hydraulic rod 23 automatically adjusts the height of the telescopic support 22 according to the terrain to ensure the stability of the device under different terrain conditions. The shock-absorbing spring 21 absorbs the vibration generated during the movement of the device to ensure the accuracy of the measurement data.

[0028] Real-time monitoring and adjustment: Driven by the servo motor 26, the camera 32 realizes multi-angle rotation through the linkage of the drive rod 27, drive wheel 28, transmission belt 29 and transmission wheel 30 to monitor the terrain of the farmland and the measurement process in real time. The images collected by the camera 32 are displayed on the display screen 35, and the operator can intuitively observe the measurement progress and terrain changes.

[0029] In case of complex terrain, the operator can manually adjust the position of the device through the grip 34 to ensure that the distance measuring wheel 2 can roll smoothly.

[0030] Data recording and analysis: During the measurement process, the controller records in real time the rolling distance of the distance measuring wheel 2, the images collected by the camera 32 and the terrain data. After the measurement is completed, the operator can view the measurement results through the display screen 35, including data such as the total area of the farmland, the length and width of each area, etc.

[0031] The measurement data can be exported to a computer or mobile device for further use in farmland planning and design.

[0032] Device storage: After the measurement is completed, the operator puts away the device. The limit insertion block 14 is inserted into the limit card slot of the second connecting rod 9 to prevent the distance measuring wheel 2 from rotating continuously. The support column 17 is retracted by the first electric telescopic rod 16, and the device returns to a state convenient for transportation.

[0033] Working principle: After the device is started, the distance measuring wheel 2 is rotatably connected to the mounting sleeve frame 1 through the first connecting rod 3 and the second connecting rod 9, and starts to roll on the land surface. The rolling distance of the distance measuring wheel 2 is proportional to the measured distance of the land. Multiple groups of arc-shaped plates 6 are fixed on the surface of the first connecting rod 3, and the arc-shaped plates 6 rotate with the rotation of the distance measuring wheel 2. Sensing components 8 are fixed around the inner wall of the control ring 7. The sensing components 8 can detect the number of rotations of the arc-shaped plates 6. Each time it rotates once, the sensing components 8 will record a signal and transmit the data to the controller. The controller calculates the actual land distance according to the number of rotations and the circumference of the distance measuring wheel 2. To ensure the stability during the measurement process, a limit card slot is opened at the end of the second connecting rod 9, and the limit plug 14 is inserted into the limit card slot through the moving block 13 on the electric slide rail 12. When the limit plug 14 is inserted into the limit card slot, the distance measuring wheel 2 stops rotating to prevent accidental movement of the distance measuring wheel 2 during the measurement process; when the limit plug 14 is pulled out, the distance measuring wheel 2 can continue to roll. The first electric telescopic rod 16 in the inverted V-shaped sleeve frame 15 can adjust the height of the support column 17 to ensure that the device remains horizontal under different terrain conditions, improving the stability and accuracy of the measurement. The shock-absorbing spring 21 at the top of the mounting rod 19 can absorb the vibrations generated during the movement or measurement of the device, reducing the impact of external shocks on the measurement accuracy and ensuring the accuracy of the measurement data. The hydraulic rod 23 adjusts the height of the device through the telescopic bracket 22 to adapt to different measurement environments and terrain conditions. The telescopic function of the hydraulic rod 23 enables the device to be flexibly adjusted to ensure the smoothness and accuracy during the measurement process. The camera 32 realizes multi-angle rotation through the linkage of the servo motor 26, the driving rod 27, the driving wheel 28, the transmission belt 29 and the transmission wheel 30, and can monitor the terrain changes and measurement progress during the measurement process in real time. The images collected by the camera 32 are displayed on the display screen 35. The display screen 35 is electrically connected to the controller and can display the measurement data, the images collected by the camera 32 and other relevant information in real time, facilitating the operator to intuitively understand the measurement status and results. The controller is responsible for receiving the data of the sensing components 8, calculating the rolling distance of the distance measuring wheel 2, and displaying the result on the display screen 35. The controller can also store the measurement data for subsequent analysis and processing. The servo motor 26 drives the camera 32 to perform multi-angle rotation through the driving rod 27 and the transmission belt 29 to realize automatic monitoring and data collection. The entire device realizes the accurate measurement of the land distance through the coordinated work of the distance measuring wheel, the sensing components, the limit mechanism, the shock-absorbing system, the camera and the display screen. The automatic control and real-time monitoring functions of the device greatly improve the measurement efficiency and accuracy, and are applicable to complex terrains and various measurement environments.

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

Claims

1. A land distance measuring device, characterized in that: include: Install the casing (1); The inner wall of the mounting frame (1) is rotatably connected to a distance measuring wheel (2); a first connecting rod (3) is fixedly connected to one side of the distance measuring wheel (2); a first bearing (4) is fixedly connected to the surface of the first connecting rod (3); a first sleeve box (5) is fixedly connected to one side of the mounting frame (1); an inner wall of the first sleeve box (5) is sleeved on the surfaces of the first connecting rod (3) and the first bearing (4); a plurality of groups of arc plates (6) are fixedly connected to the surface of the first connecting rod (3); a control ring (7) is fixedly connected to the inner wall of the first sleeve box (5); and sensor components (8) are fixedly connected to the four sides of the inner wall of the control ring (7); The other side of the distance measuring wheel (2) is fixedly connected to a second connecting rod (9), and the surface of the second connecting rod (9) is fixedly connected to a second bearing (10). The other side of the mounting sleeve frame (1) is fixedly connected to a second sleeve box (11), and the inner wall of the second sleeve box (11) is sleeved on the surfaces of the second connecting rod (9) and the second bearing (10). A limit slot is provided at the rear end of the second connecting rod (9). The inner wall of the second sleeve box (11) is fixedly connected to an electric slide rail (12), and the inner wall of the electric slide rail (12) is slidably connected to a moving block (13). The surface of the moving block (13) is fixedly connected to a limit plug block (14), and the surface of the limit plug block (14) is plugged into the inner wall of the limit slot.

2. A land distance measuring device according to claim 1, characterized in that: Both sides of the installation sleeve frame (1) are fixedly connected to an inverted V-shaped sleeve frame (15), both sides of the inner wall of the inverted V-shaped sleeve frame (15) are fixedly connected to a first electric telescopic rod (16), and the output end of the first electric telescopic rod (16) is fixedly connected to a support column (17).

3. A land distance measuring device according to claim 1, characterized in that: The top of the mounting frame (1) is fixedly connected to a positioning frame (18), both sides of the top of the positioning frame (18) are fixedly connected to mounting rods (19), the top of the mounting rod (19) is sleeved with a fixing tube (20), the top of the mounting rod (19) is connected to a shock absorbing spring (21), and the top of the shock absorbing spring (21) is inserted into the inner wall of the fixing tube (20).

4. A land distance measuring device according to claim 3, characterized in that: A telescopic bracket (22) is fixedly connected to the top of the positioning frame (18), a hydraulic rod (23) is inserted into the inner wall of the telescopic bracket (22), and the top end of the hydraulic rod (23) is fixedly connected to the inner top wall of the telescopic bracket (22), and the output end of the hydraulic rod (23) is overlapped with the inner bottom wall of the telescopic bracket (22).

5. A land distance measuring device according to claim 4, characterized in that: The top of the telescopic bracket (22) is fixedly connected to an assembly platform (24), one side of the top of the assembly platform (24) is fixedly connected to a mounting clamp (25), the inner bottom wall of the mounting clamp (25) is fixedly connected to a servo motor (26), the output end of the servo motor (26) is mounted with a driving rod (27), the front end of the driving rod (27) is fixedly connected to a driving wheel (28), and the surface of the driving wheel (28) is rotatably connected to a transmission belt (29), the inner wall of the transmission belt (29) is rotatably connected to a transmission wheel (30), one side of the transmission wheel (30) is fixedly connected to a movable rod (31), one end of the movable rod (31) is fixedly connected to a camera (32), and both sides of the camera (32) are rotatably connected to the inner wall of the mounting clamp (25).

6. A land distance measuring device according to claim 5, characterized in that: The inner wall of the assembly platform (24) is fixedly connected to a controller, and both sides of the bottom of the assembly platform (24) are fixedly connected to the top of the fixed tube (20).

7. A land distance measuring device according to claim 5, characterized in that: A tilting support rod (33) is fixedly connected to one side of the top of the assembly platform (24), handles (34) are fixedly connected to both sides of the top of the tilting support rod (33), a display screen (35) is fixedly connected to the top of the tilting support rod (33), and the display screen (35) and the controller are electrically connected to each other.

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