A surveying device for land spatial planning and its usage method

Abstract

This invention relates to the field of surveying equipment technology, and proposes a surveying equipment for land spatial planning and its usage method. It enables the aerial surveying operation of a surveying instrument, effectively increasing the surveying range of the instrument. While offering better practicality, the overall structure is relatively simple, and operation and preparation are convenient. The equipment includes a main mounting structure, a steady-state landing structure, and three surveying instruments. The main mounting structure includes a main shell with three side mounting cavities outside. Each of the three side mounting cavities is rotatably connected to a rotating mounting frame, and the three surveying instruments are respectively installed in the three rotating mounting frames. A stepped mounting cylinder is fixedly connected inside the main shell, and a synchronous ejection structure is installed inside the stepped mounting cylinder. The synchronous ejection structure is used for the coordinated swing adjustment of the three rotating mounting frames. The steady-state landing structure includes a top mounting frame with three corner frames rotatably connected outside. A delayed drive mechanism matching the three corner frames is installed inside the top mounting frame.

Description

Technical Field

[0001] This invention relates to the field of surveying equipment technology, specifically to a surveying equipment for land and space planning and its usage method. Background Technology

[0002] As is well known, land spatial planning surveying equipment is an auxiliary device used to measure and map the quantity, distribution, and topographic features of various types of land. Land spatial planning surveying equipment and its usage methods provide data support for land spatial planning.

[0003] A search revealed that Chinese patent application CN202311493620.9 discloses a geographic information surveying and acquisition device for land spatial planning. Its general description includes an assembly base, an autonomous execution mechanism on the outer wall of the assembly base, a trajectory traveling mechanism at the bottom of the assembly base, and a support mechanism at the top of the assembly base. The autonomous execution mechanism includes a wiring box, which is fixedly installed on one side of the outer wall of the assembly base. A PCB panel is fixedly connected inside the wiring box, and a set of contact bases is fixedly connected to the outer wall of the PCB panel. Chinese patent application CN202411297463.9 discloses a land geological surveying device, which is generally described as including a main support leg, three... The tripod has three main support legs that can be detachably and separately fixed at its bottom. Each main support leg consists of an upper support leg and a lower support leg. The relative position between the upper and lower support legs can be adjusted through an adjustment mechanism, thereby changing the total length of the main support legs. The bottom of the lower support leg is fixed with a downward-pointing conical ground insert. The tripod also has an adjustment component that can be detachably fixed. In use, by rotating the support rod circumferentially, a range sensor can be used to measure the inner ring survey data of the point. During the circumferential rotation of the support rod, the cooperation of the bevel gear and the bevel gear ring can adjust the horizontal position of the range sensor relative to the tripod, so that the range sensor can measure the ring survey data at different locations near the point.

[0004] While the aforementioned existing technical solutions can achieve surveying operations, both require the formation of supports relative to the ground surface during the surveying process, limiting the detection height. Therefore, if a large area is to be surveyed, the support position needs to be frequently switched, and the ease of use needs to be further improved. If drones are used to carry surveying equipment such as ranging sensors for aerial surveying, on the one hand, strict real-time manual control is required, and on the other hand, attention must be paid to various radar or electromagnetic interferences. In addition, applications and reports are required for certain areas or time periods, making the preparation work quite cumbersome. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a surveying device for land and space planning and its usage method. It enables the aerial surveying operation of a surveying instrument, effectively increases the surveying range of the instrument, has better practicality, and features a simpler overall structure, making operation and preparation more convenient.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a land spatial planning surveying device, comprising three surveying instruments, a main mounting structure, and a steady-state landing structure. The main mounting structure includes a main shell, with three side mounting cavities outside the main shell. Rotary mounting frames are rotatably connected to each of the three side mounting cavities. The three surveying instruments are respectively installed within the three rotary mounting frames. A stepped mounting cylinder is fixedly connected inside the main shell, and a synchronous ejection structure is installed inside the stepped mounting cylinder. The synchronous ejection structure is used for the coordinated swing adjustment of the three rotary mounting frames. The steady-state landing structure includes a top mounting frame, with three curved frames rotatably connected outside the top mounting frame. Elastic cloth is installed over the three curved frames. A time-delay drive mechanism matching the three curved frames is installed inside the top mounting frame. The time-delay drive mechanism matches the three curved frames. An extended ball ring frame is fixedly connected to the bottom end of the top mounting frame, and an embedded ball sleeve frame is fixedly connected to the top end of the main shell. The extended ball ring frame is installed inside the embedded ball sleeve frame. The main shell is equipped with an elastic launch structure.

[0007] Preferably, the delay drive mechanism includes a through sliding column and an annular elastic bladder. A mounting cavity is provided within the top mounting frame. The annular elastic bladder is disposed within the mounting cavity, and its bottom end is fixedly connected to the inner bottom wall of the mounting cavity. A push plate is fixedly connected to the top end of the annular elastic bladder, and the push plate is slidably connected within the mounting cavity. The through sliding column is fixedly connected to the push plate. Three lifting rods are rotatably connected to the top end of the through sliding column, and the three lifting rods are respectively hinged to the three bend brackets. A venting pipe is connected to the bottom end of the annular elastic bladder, and an exposed hole matching the venting pipe is provided at the bottom end of the top mounting frame.

[0008] Preferably, the annular elastic bladder and the through sliding column are fitted with a clearance. The push plate is provided with three outward push heads. The top mounting frame has three strip openings. All three strip openings are connected to the mounting cavity. The three outward push heads extend out through the three strip openings respectively. The three outward push heads are rotated and offset from the three bend frames respectively. The elastic cloth is provided with three air vents. The opening positions of the three air vents correspond to the three outward push heads respectively.

[0009] Preferably, the synchronous ejection structure includes a lifting step column frame, which is slidably connected inside the step mounting cylinder. A step column cap is threadedly connected to the bottom end of the step mounting cylinder, and a push spring is fixedly connected to the top end of the step column cap. The top end of the push spring contacts the bottom end of the lifting step column frame. The lifting step column frame is hinged with three push rods, which are respectively hinged to three rotating mounting frames. A push ball matching the through sliding column is provided at the top end of the lifting step column frame.

[0010] Preferably, the elastic launch structure includes a support base cylinder, a lifting spring is provided inside the support base cylinder, a pushing circular plate is provided at the top of the lifting spring, the pushing circular plate is connected inside the support base cylinder, and a counterweight contact pushing plate is fixedly connected to the bottom end of the main shell cylinder, the counterweight contact pushing plate is matched with the pushing circular plate.

[0011] Preferably, a limiting frame is rotatably connected to the bottom cylinder of the support, the limiting frame is provided with a limiting tip, and a turning hole is provided on the side wall of the bottom cylinder of the support for the rotating insertion of the limiting tip. The limiting tip matches the pushing circular plate, a traction nose is fixedly connected to the bottom end of the limiting frame, and an insertion working hole is provided at the top end of the limiting frame.

[0012] Preferably, the top of the stepped mounting cylinder is provided with an enlarged diameter section, which matches the through sliding column. When the through sliding column is inserted into the enlarged diameter section, the swinging action between the embedded ball sleeve frame and the extended ball ring frame is lost.

[0013] Preferably, the main shell is a structure assembled from three separate cylindrical parts, and the embedded ball sleeve frame is a structure assembled from three separate ball sleeves. The three separate cylindrical parts are fixedly connected to the three separate ball sleeves respectively, and the three side mounting cavities are respectively opened on the outside of the three separate cylindrical parts.

[0014] Preferably, the top of the top mounting bracket is provided with a top insertion post, and the center of the elastic cloth is provided with a top insertion hole, the top insertion hole matching the top insertion post, and a pointed pressure cap is threaded onto the top insertion post.

[0015] A method for using a land spatial planning surveying device includes the following steps:

[0016] S1. First, install power supplies, control chips, and storage hardware for three surveying instruments inside the main shell. Then, adjust and place the elastic launching structure so that the elastic launching structure enters an elastic compression state for use.

[0017] S2. Next, by adjusting the delay drive mechanism, the three corner frames are folded and stored relative to the top mounting frame, and the relative storage state of the three corner frames is maintained. Since the three corner frames are connected to the elastic fabric, the elastic fabric is in a relaxed storage state after the three corner frames are folded and stored.

[0018] S3. Then turn on the three surveying instruments. After all three surveying instruments are powered on and running, they can collect data and transfer the real-time survey data into the storage hardware through the control chip. Then insert the main shell into the elastic launch structure. The elastic launch structure provides elastic power drive for the main shell to push the main shell into the air.

[0019] S4. During the ascent of the main shell, the time-delay drive mechanism will control the three corner frames to be in the retracted state. After the main shell is ascent to near the limit height, the time-delay drive mechanism will control the three corner frames to be fully open, so as to cause the elastic cloth to enter the tension state and increase the air resistance when the main shell is descending.

[0020] S5. Under the action of the unfolded elastic cloth, the descent speed of the main shell can be slowed down, so that the three surveying instruments have enough time to stay in the air for surveying and exploration, so as to realize the collection of surveying data for land and space planning.

[0021] Compared with the prior art, the present invention provides a surveying device for land spatial planning and its method of use, which has the following beneficial effects:

[0022] (1) In this invention, the core structure of the land space planning surveying device is formed by the design of the main installation structure. On the one hand, it is convenient to install the brackets of the three surveying instruments, and on the other hand, it is convenient to form a corresponding connection with the steady-state landing structure, so as to ensure the integrity of the land space planning surveying device.

[0023] (2) In this invention, through the design of the steady-state landing structure, the steady-state landing structure opens after the main installation structure is raised, so as to increase the falling resistance, increase the hang time of the main installation structure and the three surveying instruments, and ensure the smooth surveying of the three surveying instruments.

[0024] (3) In this invention, the design of the time-delay drive mechanism can provide short-term attitude maintenance for the folding attitude of the steady-state landing structure, thereby reducing the air resistance of the land space planning surveying device. After the land space planning surveying device is launched, the steady-state landing structure can be pushed open to facilitate the aerial surveying operation of the three surveying instruments.

[0025] (4) In this invention, the elastic launch structure is matched to provide the corresponding elastic lift function component for the main installation structure, so as to provide power for the lift of the three surveying instruments. The structure is relatively simple, the operation is relatively simple, and the repeatability is also good. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram showing a partial cross-section of the present invention;

[0027] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the local structure at point A;

[0028] Figure 3 This is a three-dimensional structural schematic diagram with a partial cross-section of the present invention;

[0029] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B;

[0030] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the local structure at point C;

[0031] Figure 6 This is a three-dimensional structural diagram of the combination of the extended ball ring frame, the through sliding column, and the annular elastic bladder of the present invention;

[0032] Figure 7 This is a bottom-view three-dimensional structural diagram of the external ball ring frame, through sliding column, and annular elastic bladder of the present invention.

[0033] Figure 8 This is a bottom-view three-dimensional structural diagram of the main shell, stepped mounting cylinder, and embedded ball sleeve frame of the present invention.

[0034] Figure 9 This is a three-dimensional structural diagram of the entire invention;

[0035] Figure 10 This is a partially sectional, exploded three-dimensional structural diagram of the main shell, stepped mounting cylinder, and stepped column cap of the present invention.

[0036] Figure 11 This is a three-dimensional structural diagram showing the disassembled assembly of the bracket base, limiting frame, and traction nose of the present invention.

[0037] Figure 12 This is a three-dimensional structural diagram of the top mounting bracket and the extended ball ring bracket of the present invention being fixedly connected to each other;

[0038] Figure 13 This is a three-dimensional structural diagram of the elastic fabric of the present invention;

[0039] Figure 14 This is a three-dimensional structural diagram of the stepped column cap, push rod, and push ball of the present invention.

[0040] Figure 15This is a three-dimensional structural diagram of the ventilation slotted tube of the present invention.

[0041] In the diagram: 1. Surveying instrument; 2. Main shell; 3. Side mounting cavity; 4. Rotating mounting bracket; 5. Stepped mounting cylinder; 6. Top mounting bracket; 7. Angle bracket; 8. Elastic cloth; 9. Extended ball ring bracket; 10. Embedded ball sleeve bracket; 11. Through sliding column; 12. Annular elastic bladder; 13. Mounting cavity; 14. Push plate; 15. Lifting rod; 16. Extended push head; 17. Strip-shaped opening; 18. Vent outlet; 19. 20. Lifting step column frame; 21. Step column cap; 22. Top push spring; 23. Push rod; 24. Push ball; 25. Support base cylinder; 26. Spring lifting spring; 27. Push circular plate; 28. Counterweight contact push plate; 29. ​​Limiting frame; 30. Limiting tip; 31. Turning hole; 32. Traction nose; 33. Insertion working hole; 34. Expanded diameter section; 35. Top insertion column; 36. Top insertion hole; 37. Tip pressure cap. Detailed Implementation

[0042] 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.

[0043] For examples, please refer to Figures 1-15A land spatial planning surveying device includes three surveying instruments 1, a main mounting structure, and a stable descent structure. The main mounting structure includes a main shell 2 with three side mounting cavities 3 outside the shell 2. Rotary mounting frames 4 are rotatably connected to each of the three side mounting cavities 3, and the three surveying instruments 1 are respectively installed in the three rotating mounting frames 4. A stepped mounting cylinder 5 is fixedly connected inside the main shell 2. A synchronous ejection structure is installed inside the stepped mounting cylinder 5, including a lifting stepped column frame 19. The lifting stepped column frame 19 is slidably connected inside the stepped mounting cylinder 5. A stepped column cap 20 is threadedly connected to the bottom end of the stepped mounting cylinder 5, and a push spring 21 is fixedly connected to the top end of the stepped column cap 20. The top end of the push spring 21 is connected to the lifting stepped column frame 1. The bottom end of the 9 contacts the lifting step column frame 19, which is hinged with three push rods 22. The three push rods 22 are respectively hinged to three rotating mounting frames 4. The top of the lifting step column frame 19 is provided with a push ball 23 that matches the through sliding column 11. The synchronous push structure is used for the linkage swing adjustment of the three rotating mounting frames 4. Through the design of the main installation structure, the core structure of the land space planning surveying device is formed. On the one hand, it facilitates the installation of the brackets of the three surveying instruments 1, and on the other hand, it facilitates the corresponding connection with the steady-state landing structure, ensuring the integrity of the land space planning surveying device. The steady-state landing structure includes a top mounting frame 6, and three corner frames 7 are rotatably connected to the top mounting frame 6. The three corner frames 7 are covered with an elastic cloth 8. The top mounting frame 6 is equipped with a time-delay drive mechanism that matches the three bend frames 7. The time-delay drive mechanism includes a through sliding column 11 and an annular elastic bladder 12. The top mounting frame 6 has a mounting cavity 13. The annular elastic bladder 12 is placed in the mounting cavity 13, and its bottom end is fixedly connected to the inner bottom wall of the mounting cavity 13. A push plate 14 is fixedly connected to the top end of the annular elastic bladder 12 and is slidably connected in the mounting cavity 13. The through sliding column 11 is fixedly connected to the push plate 14. Three lifting rods 15 are rotatably connected to the top end of the through sliding column 11. The three lifting rods 15 are respectively hinged to the three bend frames 7. The bottom end of the annular elastic bladder 12 is connected to a vent pipe. The bottom end of the frame 6 is provided with an exposed hole that matches the ventilation duct. The annular elastic bladder 12 and the through sliding column 11 are fitted with a clearance. The push plate 14 is provided with three extended push heads 16. The top mounting frame 6 has three strip openings 17, all of which are connected to the mounting cavity 13. The three extended push heads 16 extend through the three strip openings 17 respectively. The three extended push heads 16 are respectively rotated and offset from the three curved frames 7. The elastic cloth 8 is provided with three air vents 18, and the opening positions of the three air vents 18 correspond to the three extended push heads 16 respectively. Through the design of the time-delayed drive mechanism, a short-term attitude maintenance can be provided for the folding attitude of the steady-state landing structure, thereby reducing the lift resistance of this land space planning survey device.Furthermore, once the land space planning surveying device is launched, it can achieve the propulsion and opening of the steady-state landing structure, increasing landing resistance to facilitate the aerial surveying operations of the three surveying instruments 1. A top insertion post 34 is provided at the top of the top mounting frame 6, and a top insertion hole 35 is provided at the center of the elastic fabric 8. The top insertion hole 35 matches the top insertion post 34, and a pointed pressure cap 36 is threaded onto the top insertion post 34. This reduces air resistance and provides compression and positioning to the central area of ​​the elastic fabric 8.

[0044] It should be further explained that the bottom end of the top mounting frame 6 is fixedly connected to an extended ball ring frame 9, and the top end of the main shell 2 is fixedly connected to an embedded ball sleeve frame 10. The extended ball ring frame 9 is installed inside the embedded ball sleeve frame 10. Through the design of the steady-state descent structure, when the main mounting structure is raised, the steady-state descent structure opens to increase the falling resistance, improve the hang time of the main mounting structure and the three surveying instruments 1, and ensure the smooth surveying of the three surveying instruments 1. The top end of the stepped mounting cylinder 5 is provided with an expanded diameter section 33. The expanded diameter section 33 matches the through sliding column 11. When the through sliding column 11 is inserted into the expanded diameter section 33, the swinging action between the embedded ball sleeve frame 10 and the extended ball ring frame 9 is lost. The main shell 2 is equipped with an elastic launching structure, which includes a support base cylinder 24. A spring 25 is installed inside the support base cylinder 24. A pushing circular plate 26 is installed at the top of the spring 25. The pushing circular plate 26 is connected inside the support base cylinder 24. A counterweight contact pushing plate is fixedly connected to the bottom end of the main shell 2. 27. The counterweight contact push plate 27 matches the push circular plate 26. The bracket bottom cylinder 24 is externally rotatably connected to the limit frame 28. The limit frame 28 is provided with a limit tip 29. The side wall of the bracket bottom cylinder 24 is provided with a through hole 30 for the rotation insertion of the limit tip 29. The limit tip 29 matches the push circular plate 26. The bottom end of the limit frame 28 is fixedly connected to the traction nose 31. The top end of the limit frame 28 is provided with an insertion working hole 32. Through the matching of the elastic launch structure, the corresponding elastic lifting function component is provided for the main installation structure to facilitate the lifting of the three surveying instruments 1. The structure is relatively simple, the operation is relatively simple, and the repeatability is also good. The main shell cylinder 2 is a structure assembled from three separate cylinder parts. The embedded ball sleeve frame 10 is a structure assembled from three separate ball sleeves. The three separate cylinder parts are fixedly connected to the three separate ball sleeves respectively. The three side mounting cavities 3 are respectively opened on the outside of the three separate cylinder parts, which facilitates the manufacturing process and overall assembly.

[0045] The surveying instrument 1 in this embodiment is a conventional device known to those skilled in the art and available on the market. For example, it can be a geographic surveying instrument, a multi-functional sensor, or a lidar device. In this invention, we are only using it without making any improvements to its structure or function. Its setting method, installation method, and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. Therefore, we will not elaborate on them here.

[0046] In summary, the working principle of this land spatial planning surveying device and its usage method is as follows: Before use, three surveying instruments 1 are installed inside the main shell 2, along with power supplies, control chips, and storage hardware. Then, the elastic launching structure is adjusted and placed to enter an elastic compression state for use. The process of the elastic launching structure entering the elastic compression state involves overcoming the elastic force of the lifting spring 25 to push the circular plate 26, causing it to enter the hook area corresponding to the lower side of the limiting tip 29. Then, the limiting frame 28 is rotated, causing the limiting tip 29 to insert into the support base cylinder 24 through the turning hole 30. When the bottom end of the limiting frame 28 is pressed against the support base cylinder 24, the limiting tip 29 can no longer be inserted further into the turning hole. 30. In this state, releasing the downward pressure on the pushing circular plate 26 allows the limiting tip 29 to limit the pushing circular plate 26, maintaining the compressed state of the lifting spring 25. Then, by adjusting the delayed drive mechanism, all three corner brackets 7 are folded and stored relative to the top mounting bracket 6, maintaining their relative storage state. Since all three corner brackets 7 are connected to the elastic fabric 8, the elastic fabric 8 is in a relaxed storage state after the three corner brackets 7 are folded and stored. The delayed drive mechanism adjustment process involves pressing down the outward-extending pusher 16 to compress the annular elastic bladder 12. Because the annular elastic bladder 12 is a hollow, elastic, closed structure, compression of the annular elastic bladder 12 will cause gas to escape through the venting pipe, combined with the attached... Figure 15It can be clearly determined that the venting tube has a duckbill structure. When gas is expelled from the annular elastic bladder 12, the pressure difference between the inside and outside of the bladder causes the expelled gas to widen at the bottom of the venting tube, opening the duckbill opening to improve the efficiency of gas expulsion. When the annular elastic bladder 12 is flattened, it has elastic recovery properties, causing outside air to be drawn into it. At this time, the pressure difference closes the duckbill opening, preventing outside air from entering the annular elastic bladder 12. However, the side of the venting tube has tiny holes through which outside air can slowly enter the annular elastic bladder 12. Therefore, if there is not enough air in the annular elastic bladder 12 within a certain time, the annular elastic bladder 12 will flatten. The state is slowly and gradually reset until there is enough air in the annular elastic bladder 12 to make the annular elastic bladder 12 rise again. The annular elastic bladder 12 is in a flattened state, which will cause the push plate 14 and the through sliding column 11 to descend synchronously relative to the top mounting frame 6. The descent of the through sliding column 11 will drive the movement of multiple lifting rods 15. The downward pressing of the lifting rods 15 will cause the corner frame 7 to rotate and fall relative to the top mounting frame 6, that is, the corner frame 7 enters the folded storage posture. Since the descent of the through sliding column 11 will pass through the outward ball ring frame 9, the falling through sliding column 11 will insert into the expanded diameter section 33, so that the through sliding column 11 and the stepped mounting cylinder 5 form a coaxial posture. In this state, the main shell cylinder 2 and the top mounting frame 6 will remain on the same straight line, so that the main shell cylinder 2 and the top mounting frame 6 have the same upward direction when they are lifted into the air.

[0047] Furthermore, the three surveying instruments 1 are turned on. Once all three instruments 1 are powered on and running, they can acquire data. The control chip can transfer the real-time survey data from the three instruments 1 into the storage hardware. Then, the main shell 2 is inserted into the elastic launching structure, so that the counterweight contact push plate 27 is inserted into the support bottom cylinder 24 until the counterweight contact push plate 27 and the pushing circular plate 26 make vertical contact. The elastic launching structure provides elastic power drive for the main shell 2 to achieve the lifting of the main shell 2. That is, by rotating the limiting frame 28, the limiting effect of the limiting tip 29 on the pushing circular plate 26 is invalidated, the limiting effect of the lifting spring 25 is invalidated, and the lifting spring 25 elastically resets, which can push the pushing circular plate 26 to rise, and also make the counterweight contact push plate 26 to rise. The push plate 27 is pushed upwards. When the counterweight contacts the push plate 27 and is elastically pushed out of the support base cylinder 24, it will have a certain initial velocity. Under the action of this initial velocity, the counterweight contacts the push plate 27 and pushes the main shell cylinder 2 to continue to rise synchronously. During the ascent of the main shell cylinder 2, the time-delay drive mechanism controls the three corner frames 7 to be in the retracted state. With the replenishment of gas in the annular elastic bladder 12, the annular elastic bladder 12 slowly extends, controlling the three corner frames 7 to gradually rotate and open from the retracted state. When the main shell cylinder 2 rises to near its limit height, the time-delay drive mechanism controls the three corner frames 7 to enter the fully opened state, so as to cause the elastic cloth 8 to enter the tensioned state, increasing the air resistance when the main shell cylinder 2 descends. Under the action of the opened elastic cloth 8 This design slows the descent speed of the main shell 2, allowing the three surveying instruments 1 sufficient time to conduct aerial surveys and collect data for land use planning. After the main shell 2 lands, the survey data stored in the hardware is extracted and analyzed to achieve the purpose of land use planning surveys. To improve the sufficiency and reliability of the survey data, the instruments can be repeatedly launched and surveyed at the same location. After surveying a single location, the instrument can be moved to the next location. Because the three surveying instruments 1 can be launched and surveyed, the single survey area is larger, fewer survey points are selected within the same area, and the survey efficiency is higher. Furthermore, to facilitate the control of the surveying instruments 1 after launch and their recovery after landing, ropes are attached to the main shell 2. The cable-driven main shell 2 facilitates the control of the land space planning survey device after its ascent and its recovery upon landing. Because the internal space of the annular elastic bladder 12 elastically resets, it allows the sliding column 11 to rise and reset. The rising of the sliding column 11 lifts the lifting rod 15, enabling the corner frame 7 to rotate and rise. Simultaneously, the bottom end of the sliding column 11 is pulled out relative to the expanded diameter section 33. Therefore, during the unfolding and descent of the elastic cloth 8, there is an adjustable degree of freedom between the extended ball ring frame 9 and the stepped mounting cylinder 5, meaning there is relative motion freedom between the main shell 2 and the top mounting frame 6. Under the action of the counterweight contacting the push plate 27, the overall center of gravity of the main shell 2 is lower. Therefore, if the unfolded elastic cloth 8 is slightly tilted by external wind force...The main shell 2 can still maintain a relatively stable vertical posture to ensure the stability of the measuring angle of the three measuring instruments 1. After the sliding column 11 is inserted into the expanded diameter section 33, it will push the lifting step column frame 19 downward relative to the main shell 2. Under the transmission action of the push rod 22, the falling lifting step column frame 19 will pull the three rotating mounting frames 4 to rotate and be retracted into the three side mounting cavities 3 respectively. When the annular elastic bladder 12 is flattened and in a near-flattened state, the measuring instrument 1 can be better retracted into the side mounting cavity 3, that is, the measuring instrument The lens of the surveying instrument 1 will not rotate out relative to the side mounting cavity 3. When the annular elastic bladder 12 is not fully extended, it improves the protective effect of the surveying instrument 1 should the main body shell 2 accidentally fall from the air. When the annular elastic bladder 12 is fully extended and the curved frame 7 is fully deployed, the main body shell 2 falls slowly, and the counterweight at the bottom of the main body shell 2 contacts the push plate 27 first, and the deployed curved frame 7 also provides lateral auxiliary support, thus ensuring the safe use of the surveying instrument 1.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surveying device for land spatial planning, comprising three surveying instruments (1), characterized in that, It also includes a main mounting structure and a steady-state landing structure. The main mounting structure includes a main shell (2), with three side mounting cavities (3) outside the main shell (2). Each of the three side mounting cavities (3) is rotatably connected to a rotating mounting frame (4). The three surveying instruments (1) are respectively installed in the three rotating mounting frames (4). A stepped mounting cylinder (5) is fixedly connected inside the main shell (2). A synchronous ejection structure is installed inside the stepped mounting cylinder (5). The synchronous ejection structure is used for the linkage swing adjustment of the three rotating mounting frames (4). The steady-state landing structure includes a top mounting structure. Mounting frame (6), the top mounting frame (6) is rotatably connected to three bend frames (7), the three bend frames (7) are covered with an elastic cloth (8), the top mounting frame (6) is equipped with a time delay drive mechanism that matches the three bend frames (7), the time delay drive mechanism matches the three bend frames (7), the bottom end of the top mounting frame (6) is fixedly connected to an outward ball ring frame (9), the top end of the main shell (2) is fixedly connected to an embedded ball sleeve frame (10), the outward ball ring frame (9) is installed in the embedded ball sleeve frame (10), the main shell (2) is equipped with an elastic launch structure; The delay drive mechanism includes a through sliding column (11) and an annular elastic bladder (12). A mounting cavity (13) is provided inside the top mounting bracket (6). The annular elastic bladder (12) is disposed within the mounting cavity (13), and its bottom end is fixedly connected to the inner bottom wall of the mounting cavity (13). A push plate (14) is fixedly connected to the top end of the annular elastic bladder (12), and the push plate (14) is slidably connected within the mounting cavity (13). The through sliding column (11) is fixedly connected to the push plate (14). Three lifting rods (15) are rotatably connected to the top end of the through sliding column (11). (15) is hinged to the three curved brackets (7) respectively. The bottom end of the annular elastic bladder (12) is connected to a ventilation slit tube. The bottom end of the top mounting bracket (6) is provided with an exposed hole that matches the ventilation slit tube. The elastic launch structure includes a support base cylinder (24). A spring (25) is provided inside the support base cylinder (24). A push circular plate (26) is provided at the top of the spring (25). The push circular plate (26) is connected inside the support base cylinder (24). A counterweight contact push plate (27) is fixedly connected to the bottom end of the main shell cylinder (2). The counterweight contact push plate (27) matches the push circular plate (26).

2. The land spatial planning surveying device according to claim 1, characterized in that, The annular elastic bladder (12) and the through sliding column (11) are fitted with a clearance. The push plate (14) is provided with three outward push heads (16). The top mounting frame (6) is provided with three strip openings (17). The three strip openings (17) are all connected to the mounting cavity (13). The three outward push heads (16) extend out through the three strip openings (17). The three outward push heads (16) are respectively rotated and offset from the three corner frames (7). The elastic cloth (8) is provided with three air vents (18). The opening positions of the three air vents (18) correspond to the three outward push heads (16).

3. A land spatial planning surveying device according to claim 2, characterized in that, The synchronous ejection structure includes a lifting step column frame (19), which is slidably connected inside the step mounting cylinder (5). The bottom end of the step mounting cylinder (5) is threaded with a step column cap (20), and the top end of the step column cap (20) is fixedly connected with a push spring (21). The top end of the push spring (21) contacts the bottom end of the lifting step column frame (19). The lifting step column frame (19) is hinged with three push rods (22), which are respectively hinged to three rotating mounting frames (4). The top end of the lifting step column frame (19) is provided with a push ball (23) that matches the through sliding column (11).

4. A land spatial planning surveying device according to claim 3, characterized in that, The bracket base (24) is rotatably connected to a limiting frame (28). The limiting frame (28) is provided with a limiting tip (29). The side wall of the bracket base (24) is provided with a through hole (30). The through hole (30) is used for the rotational insertion of the limiting tip (29). The limiting tip (29) matches the pushing circular plate (26). The bottom end of the limiting frame (28) is fixedly connected to a traction nose (31). The top end of the limiting frame (28) is provided with an insertion working hole (32).

5. A land spatial planning surveying device according to claim 4, characterized in that, The top of the stepped mounting cylinder (5) is provided with an enlarged diameter section (33), which matches the through sliding column (11). When the through sliding column (11) is inserted into the enlarged diameter section (33), the swinging action between the embedded ball sleeve frame (10) and the extended ball ring frame (9) is invalidated.

6. A land spatial planning surveying device according to claim 5, characterized in that, The main shell (2) is a structure formed by assembling three separate cylindrical parts, and the embedded ball sleeve frame (10) is a structure formed by assembling three separate ball sleeves. The three separate cylindrical parts are fixedly connected to the three separate ball sleeves respectively, and the three side mounting cavities (3) are respectively opened on the outside of the three separate cylindrical parts.

7. A land spatial planning surveying device according to claim 6, characterized in that, The top of the top mounting bracket (6) is provided with a top insertion post (34), and the center of the elastic cloth (8) is provided with a top insertion hole (35). The top insertion hole (35) matches the top insertion post (34), and a pointed pressure cap (36) is threaded onto the top insertion post (34).

8. A method for using a surveying device for land spatial planning, characterized in that, The method of using a land spatial planning surveying device according to any one of claims 1-7 includes the following steps: S1. First, install power supply, control chip and storage hardware for three surveying instruments (1) in the main shell (2). Then adjust the placement of the elastic launch structure so that the elastic launch structure enters the elastic compression state for use. S2. Next, by adjusting the delay drive mechanism, the three corner frames (7) are folded and stored relative to the top mounting frame (6), and the relative storage state of the three corner frames (7) is maintained. Since the three corner frames (7) are connected to the elastic cloth (8), the elastic cloth (8) is in a relaxed storage state after the three corner frames (7) are folded and stored. S3. Then turn on the three surveying instruments (1). After all three surveying instruments (1) are powered on and running, they can collect data and transfer the real-time survey data into the storage hardware through the control chip. Then insert the main shell (2) into the elastic launch structure. The elastic launch structure provides elastic power drive for the main shell (2) to achieve the propulsion and lift of the main shell (2). S4. During the process of the main shell (2) ascending, the time-delay drive mechanism will control the three corner frames (7) to be in the retracted state. After the main shell (2) ascends to the near limit height, the time-delay drive mechanism will control the three corner frames (7) to fully open, so as to cause the elastic cloth (8) to enter the tension state and increase the air resistance when the main shell (2) descends. S5. Under the action of the open elastic cloth (8), the descent speed of the main shell (2) can be slowed down, so that the three surveying instruments (1) have enough time to stay in the air for surveying and to collect survey data for land space planning.

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