Space planning topographic data measuring device for land transaction

Abstract

The invention discloses a spatial planning topographic data measuring device for land transaction, and particularly relates to the technical field of photogrammetry, the spatial planning topographic data measuring device comprises a casing, a support block and a sleeve frame, the support block is fixed on one side of the casing, the sleeve frame is fixedly connected on one side of the support block, and a surrounding photogrammetry mechanism is arranged on one side of the inner wall of the sleeve frame; the surrounding photogrammetry mechanism comprises an annular sliding rail fixedly arranged on one side of the inner wall of the sleeve frame, and the inner wall of the annular sliding rail is slidably connected with a sliding gear ring. A surrounding photogrammetry mechanism is adopted, a gear motor drives a rotating shaft to rotate in a sleeve frame, a sliding gear ring carries a sliding shaft to rotate along a circular ring path, one surveying and mapping camera faces the left side to carry out vertical circular ring rotation photogrammetry terrain, and the other surveying and mapping camera faces the right side to carry out vertical circular ring rotation photogrammetry terrain. The two surveying and mapping cameras can avoid angle obstacle limitation, and the photogrammetry efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photogrammetry, and more specifically, to a spatial planning terrain data measuring device for land transactions. Background Art

[0002] The terrain data obtained by the measuring device can be used to conduct a detailed assessment of the use of the land. This helps to determine the best use of the land, such as development, residential construction or agricultural land. Secondly, land planning can be formulated based on accurate terrain data, and scientific and reasonable land planning plans can be formulated. These plans can fully consider the actual situation of the land and future development needs, and ensure the rational use and sustainable development of land resources. After searching the existing published technical documents, the Chinese patent announcement number CN116625321A discloses an aerial photogrammetry device and a measurement method, which realizes the installation and disassembly of the cross plate by controlling the distance between the two clamps. This technology can realize the rapid installation and disassembly of the cross plate through the cooperation of components such as the clamping mechanism and the power mechanism, so as to complete the installation, disassembly and maintenance of the shooting and measurement components, and at the same time can effectively expand the adjustable range of the shooting and measurement components according to the actual situation, so as to better realize the aerial photography and measurement operations of multiple shooting angles. However, the photogrammetry device has the following defects.

[0003] When the photogrammetric device is used for topographic photogrammetry of national spatial planning, the camera of the photogrammetric device is located at the bottom, and the vertical angle of photogrammetry is hindered, making it difficult to locate the camera at the top for rapid photogrammetry. In addition, photogrammetry on both sides will be blocked by the supporting legs of the photogrammetric device. Later, the entire photogrammetric device needs to be adjusted to find the origin again for photogrammetry, resulting in a significant decrease in photogrammetry efficiency. Therefore, a spatial planning topographic data measurement device for land transactions is needed. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a spatial planning terrain data measuring device for land transactions.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spatial planning topographic data measuring device for land transactions, comprising a housing, a support block and a sleeve frame, wherein the support block is fixed to one side of the housing, the sleeve frame is fixedly connected to one side of the support block, and a surrounding photogrammetry mechanism is provided on one side of the inner wall of the sleeve frame; the surrounding photogrammetry mechanism comprises a circular slide rail fixedly arranged on one side of the inner wall of the sleeve frame, and a sliding gear ring is slidably connected to the inner wall of the circular slide rail;

[0006] The inner wall of the sliding gear ring is meshingly connected to the driving gear ring; a rotating shaft is fixedly installed on the inner wall of the driving gear ring, and a reduction motor is coaxially connected to one end of the rotating shaft; a sliding shaft is welded on one side of the sliding gear ring, and the outer wall of the sliding shaft is slidingly connected to the inner wall of the circular slide rail; a linkage frame is fixedly installed on one end of the sliding shaft, and a sleeve slide is fixedly connected to the outer wall of the sliding shaft, and the inner wall of the sleeve slide is slidingly connected to the outer wall of the circular slide rail; a synchronous switching mechanism is installed inside the linkage frame; a synchronous contraction component is fixedly connected to the bottom end of the casing.

[0007] Preferably, the driving gear ring is rotationally connected to the sleeve frame, and the center point of the driving gear ring is on the same horizontal line as the center point of the rotating shaft, the outer wall of the rotating shaft is rotationally connected to the inner wall of the sleeve frame, and the vertical cross-section of the rotating shaft is circular, a support block is installed on one side of the reduction motor, and the vertical cross-section of the support block is T-shaped; the reduction motor and the sleeve frame are fixedly connected to the support block. Two connecting rods are fixedly connected to the front and rear of the housing, and a motor is fixedly installed at one end of each connecting rod; the output end of the motor is coaxially connected to the blade; a battery is installed on the inner wall of the housing, and a wireless controller is installed on one side of the battery, the battery is used for power supply, the wireless controller and the battery are fixedly connected to the housing, a gyroscope is provided on one side of the battery, and the gyroscope is used to calibrate the housing's own posture.

[0008] According to the above technical solution, when in use, the reduction motor drives the rotating shaft to rotate inside the sleeve frame, drives the gear ring to mesh and drives the sliding gear ring to rotate, the sliding gear ring rotates inside the circular slide rail, the sliding shaft drives the linkage frame to rotate and move, the rotating rod carries the surveying camera to rotate, one surveying camera faces the left side, and performs vertical circular rotation photogrammetry of the terrain, while the other surveying camera faces the right side, and performs vertical circular rotation photogrammetry of the terrain. The two surveying cameras can avoid angle obstacle restrictions and leg occlusion restrictions, and the two surveying cameras can quickly perform photogrammetry of the terrain of national space planning.

[0009] Preferably, the synchronous switching mechanism includes a linkage screw rotatably installed inside the linkage frame; one end of the linkage screw is coaxially connected to a driving motor, and the driving motor is fixedly connected to the linkage frame, and the outer wall of the linkage screw is threadedly connected to two sleeve sliders; a linkage rack is welded on one side of each of the sleeve sliders, and a linkage gear ring is meshingly connected on one side of the linkage rack, a rotating rod is fixedly connected to the inner wall of the linkage gear ring, and a surveying and mapping camera for photogrammetry is fixedly installed on the top of the rotating rod; a sleeve block is provided between the surveying and mapping camera and the linkage gear ring, and the rotating rod and the linkage gear ring are both rotatably connected to the sleeve block, the sleeve block is fixedly connected to the linkage frame, the two sleeve sliders are both slidably connected to the linkage frame, and the two threads on the outer wall of the linkage screw are opposite and symmetrically arranged; the linkage rack is slidably connected to the sleeve block, and a support frame is fixedly installed on one side of the outer wall of the sleeve block, and the upper surface of the sleeve block is in the same horizontal plane as the upper surface of the support frame.

[0010] According to the above technical solution, when in use, the wireless controller starts the driving motor, and the driving motor drives the linkage screw to rotate inside the linkage frame, and the two sleeve sliders can approach each other along the inner wall of the linkage frame, and the two sleeve sliders carry two linkage racks to approach each other. The linkage rack drives the linkage gear ring to rotate, and the rotating rod rotates inside the sleeve block. One mapping camera rotates horizontally clockwise, while the other mapping camera rotates horizontally counterclockwise. The two mapping cameras rotate synchronously to change the horizontal photogrammetry direction.

[0011] Preferably, the synchronous contraction assembly comprises a slide frame fixedly connected to the bottom end of the housing;

[0012] The interior of the slide frame is rotatably connected to a driving screw, and a transmission motor is fixedly installed on the top of the inner wall of the slide frame, and the transmission motor is used to drive the driving screw to rotate; the outer wall of the driving screw is threadedly connected to a sleeve concave block, and both sides of the sleeve concave block are embedded and fixedly connected with a connecting shaft, and the outer wall of each connecting shaft is rotatably connected to a sleeve rod; the inner wall of the sleeve rod is rotatably connected to a hinge shaft near its top end, and a concave block is fixedly connected to one end of the hinge shaft, and a support leg is fixedly installed on one side of the concave block; a linkage shaft is fixedly provided on both sides of the support leg, and the outer wall of the linkage shaft is rotatably connected to a bearing sleeve, and the bearing sleeve is fixedly connected to the casing, the sleeve concave block is slidably connected to the slide frame, and the concave block and the sleeve concave block are both rotatably connected to the sleeve rod.

[0013] When using the above technical solution, the transmission motor drives the screw to rotate, and the sleeve concave block slides up along the inner wall of the slide frame, and the sleeve concave block synchronously drives the two connecting shafts to move upward. The connecting shaft carries the top of the sleeve rod to push upward, the hinge shaft carries the concave block to rotate upward, the legs drive the two linkage shafts to rotate, and the two legs rotate to a horizontal state, and the two legs avoid obstructing the photogrammetry field of view of the two mapping cameras.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention adopts a surround photogrammetry mechanism, which drives the rotating shaft to rotate inside the sleeve frame through a reduction motor, drives the gear ring to mesh and drives the sliding gear ring to rotate, and the sliding gear ring carries the sliding shaft to rotate along a circular path. The two sleeve blocks respectively carry two rotating rods to rotate vertically. One surveying and mapping camera faces the left side to perform vertical circular rotation photogrammetry of the terrain, while the other surveying and mapping camera faces the right side to perform vertical circular rotation photogrammetry of the terrain. The two surveying and mapping cameras can avoid angle obstacle restrictions, perform barrier-free surround photogrammetry, quickly perform photogrammetry of the terrain for national space planning, and greatly improve the efficiency of photogrammetry.

[0016] 2. The present invention utilizes a synchronous switching mechanism, and the wireless controller starts the driving motor, which drives the linkage screw to rotate inside the linkage frame. The two sleeve sliders can approach each other along the inner wall of the linkage frame. One surveying and mapping camera rotates horizontally clockwise, while the other surveying and mapping camera rotates horizontally counterclockwise. The two surveying and mapping cameras rotate synchronously in the horizontal photogrammetry direction to avoid the two legs blocking the two surveying and mapping cameras, and barrier-free horizontal rotation photogrammetry is achieved, so that the photogrammetry of the terrain of national space planning can be quickly performed.

[0017] 3. The present invention utilizes a synchronous contraction component, and a transmission motor drives the driving screw to rotate. The driving screw carries the sleeve concave block to move upward under the action of the thread transmission force, and the sleeve concave block synchronously drives the two connecting shafts to move upward. The connecting shaft carries the top of the sleeve rod to push upward, and the hinged shaft carries the concave block to rotate upward. The legs drive the two linkage shafts to rotate, and the two legs rotate to a horizontal state. The two legs avoid obstructing the photogrammetric field of view of the two surveying and mapping cameras, and there is no need to adjust the photogrammetric position of the casing. In this way, barrier-free photogrammetry is achieved, and the efficiency of topographic photogrammetry in national land space planning is greatly improved.

[0018] Based on the mutual influence of the above-mentioned multiple effects, first, one surveying and mapping camera rotates horizontally clockwise, while the other surveying and mapping camera rotates horizontally counterclockwise synchronously, and then the two legs are rotated to a horizontal state. Finally, the surveying and mapping camera faces the left side to perform vertical circular rotation photogrammetry of the terrain, while the other surveying and mapping camera faces the right side to perform vertical circular rotation photogrammetry of the terrain. In summary, the two surveying and mapping cameras can realize surround photogrammetry without obstacles, and there is no need to adjust the position of the photogrammetry device to find the origin again for photogrammetry, which greatly improves the efficiency of photogrammetry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the spatial planning terrain data measuring device for land transactions of the present invention.

[0020] Figure 2 It is a schematic diagram of the partial structure of the connection between the support block and the sleeve frame of the present invention.

[0021] Figure 3 It is a schematic diagram of the topographic structure of the spatial planning topographic data measuring device for land transactions of the present invention.

[0022] Figure 4 It is a schematic diagram of the local structure of the connection between the rotating shaft and the reduction motor of the present invention.

[0023] Figure 5 It is a schematic diagram of the vertical cross-section structure of the spatial planning topographic data measuring device for land transactions of the present invention.

[0024] Figure 6 It is a schematic diagram of the partial structure of the connection between the linkage screw rod and the drive motor of the present invention when viewed from above.

[0025] Figure 7 It is a schematic diagram of the structure of the spatial planning topographic data measuring device for land transactions according to the present invention when viewed from above.

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0027] Fig. 9 It is a schematic diagram of the local structure of the connection between the driving screw and the transmission motor of the present invention.

[0028] The accompanying drawings are marked as follows: 1, casing; 2, support block; 3, sleeve frame; 4, circular slide rail; 5, sliding gear ring; 6, driving gear ring; 7, rotating shaft; 8, reduction motor; 9, sliding shaft; 10, linkage frame; 11, sleeve slide plate; 12, support block; 13, connecting rod; 14, motor; 15, blade; 16, battery; 17, wireless controller; 18, linkage screw; 19, driving motor; 20, sleeve slide; 21, linkage rack; 22, linkage gear ring; 23, rotating rod; 24, mapping camera; 25, sleeve block; 26, support frame; 27, sliding frame; 28, driving screw; 29, transmission motor; 30, sleeve concave block; 31, connecting shaft; 32, sleeve rod; 33, hinge shaft; 34, concave block; 35, support leg; 36, linkage shaft; 37, bearing sleeve; 38, gyroscope. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1-9 A spatial planning terrain data measuring device for land transactions is shown. The spatial planning terrain data measuring device for land transactions is provided with a surround photogrammetry mechanism, a synchronous switching mechanism, and a synchronous contraction component. The settings of the various mechanisms and components enable the two surveying cameras 24 to achieve surround photogrammetry without obstacles. There is no need for the photogrammetry device to adjust its position to find the origin again for photogrammetry, and the photogrammetry efficiency is greatly improved. The specific structural settings of the various mechanisms and components are as follows.

[0031] In this embodiment, as shown in the attached Figure 1-4 As shown, the surrounding photogrammetry mechanism includes a circular slide rail 4 fixedly arranged on one side of the inner wall of the sleeve frame 3, and the inner wall of the circular slide rail 4 is slidably connected with a sliding gear ring 5, and the inner wall of the sliding gear ring 5 is meshingly connected with a driving gear ring 6; a rotating shaft 7 is fixedly installed on the inner wall of the driving gear ring 6, and a reduction motor 8 is coaxially connected to one end of the rotating shaft 7, a sliding shaft 9 is welded on one side of the sliding gear ring 5, and the outer wall of the sliding shaft 9 is slidably connected to the inner wall of the circular slide rail 4; a linkage frame 10 is fixedly installed on one end of the sliding shaft 9, and a sleeve slide plate 11 is fixedly connected to the outer wall of the sliding shaft 9, and the inner wall of the sleeve slide plate 11 is slidably connected to the outer wall of the circular slide rail 4; a synchronous switching mechanism is installed inside the linkage frame 10; and a synchronous contraction component is fixedly connected to the bottom end of the casing 1.

[0032] In this embodiment, as shown in the attached Figure 1-5As shown, a support block 12 is installed on one side of the reduction motor 8, and the vertical cross-section of the support block 12 is T-shaped; the reduction motor 8 and the sleeve frame 3 are fixedly connected to the support block 12. So that the support block 12 can support the reduction motor 8 and increase the high stability of the reduction motor 8 when in use. Two connecting rods 13 are fixedly connected to the front and rear sides of the casing 1, and a motor 14 is fixedly installed at one end of each connecting rod 13; the output end of the motor 14 is coaxially connected to the blade 15; a battery 16 is installed on the inner wall of the casing 1, and a wireless controller 17 is installed on one side of the battery 16, and the battery 16 is used for power supply. The wireless controller 17 and the battery 16 are fixedly connected to the casing 1, and a gyroscope 38 is provided on one side of the battery 16, and the gyroscope 38 is used to calibrate the posture of the casing 1. The wireless controller 17 starts the four motors 14, which drive the four blades 15 to rotate respectively, and the connecting rod 13 can firmly support the motor 14, so that the housing 1 can fly up to the specified photogrammetry position, and the housing 1 can rotate and rise. When the surveying camera 24 is circling, the gyroscope 38 can adjust and calibrate the posture of the housing 1, so as to avoid the housing 1 from being offset and tilted.

[0033] In this embodiment, as shown in the attached Figure 2-6 As shown, the synchronous switching mechanism includes a linkage screw 18 rotatably installed inside the linkage frame 10; one end of the linkage screw 18 is coaxially connected to a drive motor 19, and the drive motor 19 is fixedly connected to the linkage frame 10, and the outer wall of the linkage screw 18 is threadedly connected to two sleeve sliders 20; a linkage rack 21 is welded on one side of each sleeve slider 20, and a linkage gear ring 22 is meshingly connected on one side of the linkage rack 21, and a rotating rod 23 is fixedly connected to the inner wall of the linkage gear ring 22, and a surveying and mapping camera 24 for photogrammetry is fixedly installed on the top of the rotating rod 23.

[0034] A sleeve block 25 is provided between the surveying camera 24 and the linkage gear ring 22, and the rotating rod 23 and the linkage gear ring 22 are both rotatably connected to the sleeve block 25, and the sleeve block 25 is fixedly connected to the linkage frame 10. The two sleeve sliders 20 are both slidably connected to the linkage frame 10, and the two threads on the outer wall of the linkage screw 18 are opposite and symmetrically arranged; the linkage rack 21 is slidably connected to the sleeve block 25. A support frame 26 is fixedly installed on one side of the outer wall of the sleeve block 25, and the upper surface of the sleeve block 25 and the upper surface of the support frame 26 are in the same horizontal plane.

[0035] In this embodiment, as shown in the attached Figure 7-9As shown, the synchronous contraction assembly includes a slide frame 27 fixedly connected to the bottom end of the housing 1; a driving screw 28 is rotatably connected inside the slide frame 27, and a transmission motor 29 is fixedly installed on the top of the inner wall of the slide frame 27, and the transmission motor 29 is used to drive the driving screw 28 to rotate; a sleeve concave block 30 is threadedly connected to the outer wall of the driving screw 28, and connecting shafts 31 are embedded and fixedly connected on both sides of the sleeve concave block 30, and a sleeve rod 32 is rotatably connected to the outer wall of each connecting shaft 31; a hinge shaft 33 is rotatably connected to the inner wall of the sleeve rod 32 and near its top end, and a concave block 34 is fixedly connected to one end of the hinge shaft 33, and a support leg 35 is fixedly installed on one side of the concave block 34;

[0036] A linkage shaft 36 is fixedly provided on both sides of the support leg 35, and a bearing sleeve 37 is rotatably connected to the outer wall of the linkage shaft 36, and the bearing sleeve 37 is fixedly connected to the housing 1, the sleeve recessed block 30 is slidably connected to the slide frame 27, and the concave block 34 and the sleeve recessed block 30 are both rotatably connected to the sleeve rod 32.

[0037] The method of using the spatial planning topographic data measuring device for land transactions of the present invention is as follows:

[0038] Step 1: Before photogrammetry, place the housing 1 at the location for land space planning topographic photogrammetry. Supported on the ground by two legs 35, the remote controller starts the wireless controller 17, which is powered by a battery 16. The wireless controller 17 starts four motors 14, which drive four blades 15 to rotate respectively, and the connecting rod 13 can firmly support the motor 14, so that the housing 1 flies up to the designated photogrammetry location.

[0039] Step 2: During synchronous switching, the wireless controller 17 starts the drive motor 19, and the drive motor 19 drives the linkage screw 18 to rotate inside the linkage frame 10. The linkage screw 18 drives the two sleeve sliders 20 to move closer to each other along the inner wall of the linkage frame 10 under the action of the thread transmission force. The two sleeve sliders 20 carry two linkage racks 21 to move closer to each other. The linkage rack 21 drives the linkage gear ring 22 to rotate, and the linkage gear ring 22 carries the rotating rod 23 to rotate, and the rotating rod 23 rotates inside the sleeve block 25, while the linkage frame 10 supports the sleeve block 25, and the support frame 26 implements protective operation on the outside of the linkage gear ring 22. One surveying camera 24 rotates horizontally clockwise, while the other surveying camera 24 rotates horizontally counterclockwise. The two surveying cameras 24 rotate synchronously to change the horizontal photogrammetry direction.

[0040] Step 3: When synchronously contracting, the wireless controller 17 starts the transmission motor 29. The transmission motor 29 drives the driving screw 28 to rotate, and the driving screw 28 carries the sleeve concave block 30 to move upward under the action of the thread transmission force. The sleeve concave block 30 slides along the inner wall of the slide frame 27, and the sleeve concave block 30 synchronously drives the two connecting shafts 31 to move upward. The connecting shaft 31 carries the top of the sleeve rod 32 to push upward, and the sleeve rod 32 drives the hinge shaft 33 to rotate upward. The hinge shaft 33 carries the concave block 34 to rotate upward, and the concave block 34 drives the support leg 35 to rotate upward. The support leg 35 drives the two linkage shafts 36 to rotate, and the linkage shaft 36 rotates inside the bearing sleeve 37. When the two support legs 35 are rotated to a horizontal state, the two support legs 35 avoid obstructing the photogrammetric field of view of the two surveying and mapping cameras 24.

[0041] Step 4: During the circumferential photogrammetry, the wireless controller 17 starts the reduction motor 8, and the support block 12 supports the reduction motor 8. The reduction motor 8 drives the rotating shaft 7 to rotate inside the sleeve frame 3, and the rotating shaft 7 carries the driving gear ring 6 to rotate inside the sleeve frame 3. The driving gear ring 6 engages and drives the sliding gear ring 5 to rotate, and the sliding gear ring 5 rotates inside the circular slide rail 4. The sliding gear ring 5 carries the sliding shaft 9 to rotate along the circular path, and the sliding shaft 9 drives the linkage frame 10 to rotate and move. The linkage frame 10 carries two sleeve blocks 25 to rotate, and the two sleeve blocks 25 respectively carry two rotating rods 23 to rotate vertically. The rotating rod 23 carries the mapping camera 24 to rotate, and one mapping camera 24 faces the left side to perform vertical circular rotation photogrammetry of the terrain, while the other mapping camera 24 faces the right side to perform vertical circular rotation photogrammetry of the terrain. The two surveying and mapping cameras 24 can avoid angle obstacle restrictions and avoid obstruction restrictions caused by the legs 35. The two surveying and mapping cameras 24 can quickly perform photogrammetry on the terrain of national space planning. The data after photogrammetry is remotely transmitted to the remote control display screen through the wireless controller 17 and stored through the memory card. At the same time, the gyroscope 38 can adjust and calibrate the posture of the calibration housing 1, thereby avoiding the housing 1 from offsetting and tilting.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spatial planning topographic data measuring device for land transactions, comprising a housing (1), a support block (2) and a sleeve frame (3), wherein the support block (2) is fixed to one side of the housing (1), and the sleeve frame (3) is fixedly connected to one side of the support block (2), characterized in that: A surrounding photogrammetry mechanism is provided on one side of the inner wall of the sleeve frame (3); The surrounding photogrammetry mechanism comprises a circular slide rail (4) fixedly arranged on one side of the inner wall of the sleeve frame (3), and the inner wall of the circular slide rail (4) is slidably connected to a sliding gear ring (5), and the inner wall of the sliding gear ring (5) is meshingly connected to a driving gear ring (6); A rotating shaft (7) is fixedly mounted on the inner wall of the driving gear ring (6), a reduction motor (8) is coaxially connected to one end of the rotating shaft (7), a sliding shaft (9) is welded to one side of the sliding gear ring (5), and the outer wall of the sliding shaft (9) is slidably connected to the inner wall of the circular slide rail (4); A linkage frame (10) is fixedly mounted on one end of the sliding shaft (9), and a sleeve slide (11) is fixedly connected to the outer wall of the sliding shaft (9), and the inner wall of the sleeve slide (11) is slidably connected to the outer wall of the circular slide rail (4); A synchronous switching mechanism is installed inside the linkage frame (10); The bottom end of the casing (1) is fixedly connected with a synchronous contraction component.

2. The spatial planning topographic data measuring device for land transactions according to claim 1, characterized in that: The driving gear ring (6) is rotatably connected to the sleeve frame (3), and the center point of the driving gear ring (6) and the center point of the rotating shaft (7) are on the same horizontal line.

3. The spatial planning topographic data measuring device for land transactions according to claim 1, characterized in that: The outer wall of the rotating shaft (7) is rotatably connected to the inner wall of the sleeve frame (3), and the vertical cross-section of the rotating shaft (7) is circular.

4. The spatial planning topographic data measuring device for land transactions according to claim 1, characterized in that: A support block (12) is installed on one side of the reduction motor (8), and the vertical cross-section of the support block (12) is T-shaped; The reduction motor (8) and the sleeve frame (3) are both fixedly connected to the support block (12).

5. The spatial planning topographic data measuring device for land transactions according to claim 1, characterized in that: Two connecting rods (13) are fixedly connected to the front and rear sides of the housing (1), and a motor (14) is fixedly mounted on one end of each connecting rod (13); The output end of the motor (14) is coaxially connected to a blade (15); A battery (16) is installed on the inner wall of the housing (1), and a wireless controller (17) is installed on one side of the battery (16); the battery (16) is used for power supply, and the wireless controller (17) and the battery (16) are both fixedly connected to the housing (1); A gyroscope (38) is provided on one side of the battery (16), and the gyroscope (38) is used to calibrate the posture of the housing (1).

6. The spatial planning topographic data measuring device for land transactions according to claim 1, characterized in that: The synchronous switching mechanism comprises a linkage screw (18) rotatably mounted inside the linkage frame (10); One end of the linkage screw rod (18) is coaxially connected to a drive motor (19), and the drive motor (19) is fixedly connected to the linkage frame (10). The outer wall of the linkage screw rod (18) is threadedly connected to two sleeve sliding blocks (20); A linkage rack (21) is welded to one side of each sleeve sliding block (20), and a linkage gear ring (22) is meshed and connected to one side of the linkage rack (21), a rotating rod (23) is fixedly connected to the inner wall of the linkage gear ring (22), and a mapping camera (24) for photogrammetry is fixedly installed on the top of the rotating rod (23); A sleeve block (25) is provided between the surveying and mapping camera (24) and the linkage gear ring (22), and the rotating rod (23) and the linkage gear ring (22) are both rotatably connected to the sleeve block (25), and the sleeve block (25) is fixedly connected to the linkage frame (10).

7. The spatial planning topographic data measuring device for land transactions according to claim 6, characterized in that: The two sleeve sliding blocks (20) are both slidably connected to the linkage frame (10), and the two threads on the outer wall of the linkage screw rod (18) are opposite and symmetrically arranged; The linkage rack (21) is slidably connected to the sleeve block (25).

8. The spatial planning topographic data measuring device for land transactions according to claim 6, characterized in that: A support frame (26) is fixedly mounted on one side of the outer wall of the sleeve block (25), and the upper surface of the sleeve block (25) and the upper surface of the support frame (26) are located at the same horizontal plane.

9. The spatial planning topographic data measuring device for land transactions according to claim 1, characterized in that: The synchronous contraction assembly comprises a sliding frame (27) fixedly connected to the bottom end of the housing (1); The interior of the sliding frame (27) is rotatably connected with a driving screw (28), and a transmission motor (29) is fixedly installed on the top of the inner wall of the sliding frame (27), and the transmission motor (29) is used to drive the driving screw (28) to rotate; The outer wall of the driving screw rod (28) is threadedly connected with a sleeve recess (30), and connecting shafts (31) are embedded and fixedly connected on both sides of the sleeve recess (30), and the outer wall of each connecting shaft (31) is rotatably connected with a sleeve rod (32); A hinge shaft (33) is rotatably connected to the inner wall of the sleeve rod (32) and near its top end, a concave block (34) is fixedly connected to one end of the hinge shaft (33), and a support leg (35) is fixedly installed on one side of the concave block (34); A linkage shaft (36) is fixedly provided on both sides of the support leg (35); a bearing sleeve (37) is rotatably connected to the outer wall of the linkage shaft (36); and the bearing sleeve (37) is fixedly connected to the housing (1).

10. The spatial planning topographic data measuring device for land transactions according to claim 9, characterized in that: The sleeve concave block (30) is slidably connected to the slide frame (27), and the concave block (34) and the sleeve concave block (30) are both rotationally connected to the sleeve rod (32).

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