Surveying instrument fixing device for surveying and mapping of unmanned aerial vehicle

Abstract

The invention discloses a surveying and mapping instrument fixing device for unmanned aerial vehicle surveying and mapping, and belongs to the field of unmanned aerial vehicle surveying and mapping, and the surveying and mapping instrument fixing device comprises an unmanned aerial vehicle body, a surveying and mapping instrument body electrically connected with the unmanned aerial vehicle body, and a fixing assembly used for fixedly installing the surveying and mapping instrument body on the unmanned aerial vehicle body; the fixing assembly comprises a shell fixedly installed at the bottom of the unmanned aerial vehicle body and vertical grooves symmetrically formed in the two sides of the shell, locking plates are hinged to the bottoms of the vertical grooves, square inserting rods are slidably inserted into the bottom of the shell, and annular grooves are formed in the square inserting rods. Mounting and dismounting of the surveying instrument body are achieved through linkage of a mechanical structure, compared with a screw fixing mode, screws do not need to be screwed back and forth, mounting and dismounting operation is easy, convenient and rapid, and the hidden danger of screw slipping is avoided; compared with an electric clamp or a modular design, the clamp does not depend on electric energy, and can still be normally disassembled and assembled when electric power is lacked; the structure is simple, stability is high, and stability and reliability of the surveying instrument in the flight process of the unmanned aerial vehicle can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) surveying technology, specifically a surveying instrument fixing device for UAV surveying. Background Technology

[0002] In the modern surveying and mapping field, with the rapid development of UAV technology, surveying UAVs have become core equipment in topographic surveying, engineering monitoring, and geographic information collection due to their high efficiency and flexibility. As the key payload for UAVs in performing surveying tasks, the stability of the surveying instrument and the ease of its installation and removal directly affect the efficiency and accuracy of the surveying work. Therefore, how to achieve a fast and reliable connection between the surveying instrument and the UAV has always been a key focus in the industry.

[0003] Currently, the industry has developed various technical solutions for fixing surveying instruments to drones. Among them, the most mature and widely used is the screw fastening method. This method uses multiple screws to rigidly connect the surveying instrument to the bottom of the drone, achieving fixation through the mechanical engagement of the screws and threaded holes. This technical solution relies on the traditional mechanical connection principle and has the characteristics of simple structure, low cost, and strong stability, and was widely used in early surveying drone equipment. However, in long-term practice, the screw fastening method has been problematic because the installation and removal of the surveying instrument requires tightening each screw individually, which is cumbersome and significantly reduces work efficiency, especially in time-sensitive scenarios such as field operations. At the same time, frequent disassembly and assembly operations can easily lead to wear on the screws and threaded holes, and stripping can easily occur after long-term use. This not only affects the reliability of the fixation but may also create a safety hazard of the surveying instrument falling off.

[0004] To address these issues, one approach is to use an electric clamp for rapid mounting of the surveying instrument, with the clamp arms opening and closing via a motor to complete assembly and disassembly, significantly improving operational convenience. Another solution employs a modular design, standardizing the connection structure between the surveying instrument and the drone, using clips and slots for quick docking. While these solutions optimize assembly and disassembly efficiency to some extent, they all rely on electric drives or complex mechanical mechanisms. In actual operation, insufficient drone battery power or a malfunctioning electric clamp motor can prevent the surveying instrument from being properly assembled and disassembled, severely impacting operational continuity.

[0005] The surveying instrument employs a magnetic fixing structure, utilizing the attraction force of a strong magnet to achieve quick assembly and disassembly without consuming electricity and with simple operation. However, since the surveying instrument typically contains precision electronic components and magnetically sensitive parts, a strong magnetic field can easily interfere with the accuracy of the surveying data, making it difficult to apply in high-precision surveying scenarios.

[0006] Therefore, this application provides a mapping instrument fixing device for UAV mapping to solve the above problems. Summary of the Invention

[0007] This application provides a mapping instrument fixing device for UAV mapping, aiming to solve the problems mentioned in the background art, such as the cumbersome disassembly and assembly of existing screw fixing methods and the easy stripping of threads, the dependence of electric clamps or modular designs on electric power and the inability to operate when power is unavailable, and the easy interference of magnetic fixing structures with mapping accuracy.

[0008] To achieve the above objectives, this application provides the following technical solution: a mapping instrument fixing device for UAV mapping, comprising a UAV body, a mapping instrument body electrically connected to the UAV body, and a fixing component for fixing the mapping instrument body onto the UAV body; the fixing component includes a housing fixedly installed at the bottom of the UAV body and vertical slots symmetrically formed on both sides of the housing, a locking plate extending into the housing is hinged to the bottom of the vertical slots, a square plug adapted to and connected to the mapping instrument body is slidably inserted into the bottom of the housing, an annular groove for the locking plate to be inserted into the square plug, and a spring for driving the square plug downwards is provided inside the housing. The installation and removal of the mapping instrument body are achieved through mechanical linkage, effectively solving many problems of the prior art. Compared to screw fixing, there is no need to tighten the screws back and forth, making installation and disassembly simple and quick, avoiding the risk of stripped screws; compared to electric clamps or modular designs, it does not rely on electricity and can still be installed and disassembled normally when power is unavailable; and since it does not use a magnetic structure, it will not interfere with the accuracy of the surveying instrument. At the same time, its simple structure and strong stability ensure that the surveying instrument is stable and reliable during drone flight.

[0009] Preferably, the locking plate has a horizontal plate shape at one end near the square insert and an upwardly inclined plate shape at the other end. This special shape design makes it easier to drive the locking plate to rotate. The horizontal plate-shaped end can be stably inserted into the annular groove to ensure the locking effect; the upwardly inclined plate-shaped end allows the operator to apply force from outside the housing to easily push the locking plate to rotate, improving the convenience of installation and disassembly.

[0010] Preferably, to improve the stability of the connection between the locking plate and the insertion rod: a rack is fixedly connected to the top of the inner end of the locking plate, and the top wall of the annular groove is provided with a toothed groove that matches the rack. The two mesh with each other, which can effectively prevent the locking plate from sliding or rotating relative to each other in the annular groove, avoid the locking from loosening due to factors such as vibration during the flight of the UAV, and ensure that the surveying instrument body remains stable during operation.

[0011] Preferably, to facilitate the installation of the housing: a protruding frame is fixedly fitted on the top of the housing, and a bolt that is threadedly connected to the UAV body is inserted into the protruding frame through a through hole. The UAV body has a threaded hole adapted to the bolt. The protruding frame provides a stable mounting base for the connection between the housing and the UAV body. The threaded connection between the bolt and the threaded hole not only ensures a firm connection but also facilitates the disassembly and replacement of the housing. When the housing is damaged, disassembly and assembly operations can be performed quickly, reducing maintenance costs and difficulty.

[0012] Preferably, to ensure the locking plate automatically inserts into the annular groove during installation: the housing is provided with a reset mechanism for automatically resetting the locking plate. The reset mechanism includes a pressing plate fixedly connected to the bottom of the spring and a telescopic member hinged to the top of the vertical groove and hinged to the pressing plate. The outer end of the telescopic member is hinged to a linkage plate hinged to the outer end of the locking plate. This reset mechanism achieves automatic resetting of the locking plate, making the installation process more convenient and efficient. It eliminates the need for manual adjustment of the locking plate to the accurate position, reducing operational steps and human error. It ensures the locking plate automatically and accurately inserts into the annular groove, improving the reliability and consistency of installation. Furthermore, it assists in fixing the locking plate during disassembly, facilitating the smooth removal of the surveying instrument body.

[0013] Preferably, to enable the telescopic component to adapt to the vertical movement of the extrusion plate: the telescopic component includes a hinge plate hinged to the top of the vertical groove and an extension plate slidably inserted into the inner end of the hinge plate and hinged to the extrusion plate. The outer end of the hinge plate is hinged to the linkage plate. When the extrusion plate moves up and down, the extension plate can slide within the hinge plate, realizing the change in the length of the telescopic component. This ensures that the telescopic component maintains a stable hinged relationship with the extrusion plate and the linkage plate throughout the movement of the extrusion plate, ensuring smooth transmission between the various components of the reset mechanism and preventing jamming or connection failure due to the movement of the extrusion plate, thus improving the reliability of the reset mechanism.

[0014] Preferably, to ensure the extrusion plate maintains vertical movement: a guide groove is provided vertically on the side of the housing away from the vertical groove, and a guide plate fixedly connected to the extrusion plate is slidably inserted into the guide groove. The cooperation between the guide groove and the guide plate ensures that the extrusion plate maintains its vertical movement trajectory, preventing horizontal deviation or rotation of the extrusion plate during movement, and ensuring the stability and accuracy of the extrusion plate's movement.

[0015] Preferably, the device further includes a locking mechanism disposed on the housing for locking the position of the extrusion plate. The locking mechanism includes a screw fixed to the guide plate and a knurled nut threaded onto the screw. The knurled nut has anti-slip grooves at one end near the housing. When the extrusion plate is locked, the knurled nut abuts against the housing. The locking mechanism can fix the extrusion plate in a specific position, preventing movement of the extrusion plate due to spring force or other external forces during maintenance, debugging, or other special circumstances, ensuring the stability of all components and facilitating related operations. The knurled nut is designed for easy manual tightening, and the anti-slip grooves increase friction between the hand and the nut, making locking and unlocking operations more effortless and convenient.

[0016] Preferably, to reduce the gap between the extrusion plate and the square insert, an elastic pad is fixedly connected to the bottom of the extrusion plate. When the locking plate is inserted into the annular groove, the elastic pad abuts against the square insert. The elastic pad reduces the gap between the extrusion plate and the square insert, making their contact tighter. The elastic pad has a certain degree of elasticity, which can act as a buffer between the extrusion plate and the square insert, reducing collisions and wear caused by vibrations during the flight of the UAV. At the same time, it can also enhance the stability of the square insert within the shell, preventing wobbling caused by the gap.

[0017] Preferably, the elastic pad is made of rubber or silicone. Rubber or silicone has good elasticity and wear resistance, and can maintain its elastic properties for a long time, ensuring the cushioning and filling effect of the elastic pad is stable and long-lasting.

[0018] This application achieves the installation and disassembly of the surveying instrument body through mechanical structure linkage, effectively solving many problems of existing technologies. Compared with screw fixing, there is no need to tighten the screws back and forth, making installation and disassembly operations simple and quick, avoiding the risk of stripped screws; compared with electric clamps or modular designs, it does not rely on electrical energy and can still perform disassembly and assembly operations normally when power is unavailable; and since it does not use a magnetic structure, it will not interfere with the accuracy of the surveying instrument. At the same time, the structure is simple and highly stable, ensuring that the surveying instrument is stable and reliable during UAV flight.

[0019] This application achieves automatic reset of the locking plate through a reset mechanism, making the installation process more convenient and efficient. It eliminates the need for manual adjustment of the locking plate to the accurate position, reducing operational steps and human error. It ensures that the locking plate automatically and accurately inserts into the annular groove, improving the reliability and consistency of the installation. Simultaneously, it assists in securing the locking plate during disassembly, facilitating the smooth removal of the surveying instrument body.

[0020] The locking mechanism of this application can fix the compression plate in a specific position. In cases requiring maintenance, adjustment, or other special circumstances, it prevents the compression plate from moving due to the spring force or other external forces, ensuring the stability of all components and facilitating related operations. The knurled nut design facilitates manual tightening, and the anti-slip texture increases friction between the hand and the nut, making locking and unlocking operations more effortless and convenient.

[0021] This application utilizes an elastic pad to reduce the gap between the extrusion plate and the square insert, resulting in a tighter contact between the two. The elastic pad has a certain degree of elasticity, which can act as a buffer between the extrusion plate and the square insert, reducing collisions and wear caused by vibrations during the drone's flight. At the same time, it can also enhance the stability of the square insert within the housing, preventing wobbling caused by the gap. Attached Figure Description

[0022] Figure 1 A schematic diagram of a surveying instrument fixing device for UAV surveying; Figure 2 This is a schematic diagram of the internal structure of the shell; Figure 3 A schematic diagram of the fixed components, the surveying instrument body, and the reset mechanism; Figure 4 This is a schematic diagram of the connection between the reset mechanism and the locking plate; Figure 5 This is a bottom view of the insert rod structure; Figure 6 This is a bottom view of the elastic pad structure.

[0023] In the picture: 1. UAV body; 2. Surveying instrument body; 3. Fixing components; 31. Shell; 311. Guide groove; 32. Vertical groove; 33. Locking plate; 331. Rack; 34. Square insert rod; 35. Annular groove; 351. Tooth groove; 36. Spring; 37. Protruding frame; 4. Reset mechanism; 41. Extrusion plate; 411. Guide plate; 42. Telescopic component; 421. Hinge plate; 422. Extension plate; 43. Linkage plate; 44. Elastic pad; 5. Locking mechanism; 51. Screw; 52. Knurled nut. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Example 1 This embodiment provides a mapping instrument fixing device for UAV mapping, such as... Figure 1-6 As shown, the fixing device includes a UAV body 1, a surveying instrument body 2 electrically connected to the UAV body 1, and a fixing component 3 for fixing the surveying instrument body 2 onto the UAV body 1. The fixing component 3 includes a housing 31 fixedly installed at the bottom of the UAV body 1 and vertical slots 32 symmetrically opened on both sides of the housing 31. A locking plate 33 extending into the housing 31 is hinged to the bottom of the vertical slots 32. A square plug 34 adapted to and connected to the surveying instrument body 2 is slidably inserted into the bottom of the housing 31. An annular groove 35 is opened on the square plug 34 for inserting the locking plate 33. A spring 36 is provided inside the housing 31 for driving the square plug 34 to move downward. When the locking plate 33 is inserted into the annular groove 35, the bottom wall of the locking plate 33 near the square plug 34 abuts against the bottom wall of the vertical slot 32. The installation and removal of the surveying instrument body 2 are realized through mechanical linkage, effectively solving many problems of the prior art. Compared to screw fixing, this method eliminates the need for repeated screw tightening, making installation and disassembly simple and quick, and avoiding the risk of stripped screws. Compared to electric clamps or modular designs, it does not rely on electricity, allowing for normal assembly and disassembly even in the event of a power outage. Furthermore, the absence of a magnetic structure prevents interference with the accuracy of the surveying instrument. Its simple structure and high stability ensure the surveying instrument remains stable and reliable during UAV flight. During installation, the square insert 34 is inserted from the bottom of the housing 31. The upward movement of the square insert 34 overcomes the potential energy of the spring 36, pushing one end of the locking plate 33 inside the housing 31 upward around the hinge axis until the housing 31 contacts the surveying instrument body 2. At this point, the locking plate 33 outside the housing 31 is pushed upward, causing the locking plate 33 inside the housing 31 to move downward and engage in the annular groove 35 of the square insert 34. Subsequently, under the elastic force of spring 36, the square insertion rod 34 is driven to move downwards. The square insertion rod 34 drives the locking plate 33 to rotate through the annular groove 35 until the bottom wall of the locking plate 33 near the end of the square insertion rod 34 abuts against the bottom wall of the vertical groove 32, completing the installation of the surveying instrument body 2. For disassembly, push the surveying instrument body 2 to move the square insertion rod 34 into the housing 31 until the locking plate 33 on the outside of the housing 31 rotates to a downward tilting position. At this point, by pressing the locking plates 33 on both sides together with the thumb and forefinger, the locking plates 33 inside the housing 31 are in a vertically upward position, allowing the surveying instrument body 2 and the square insertion rod 34 to be removed from the housing 31, completing the disassembly.

[0026] The locking plate 33 has a horizontal plate shape at one end near the square insert 34 and an upwardly inclined plate shape at the other end. This special shape design makes it easier to drive the locking plate 33 to rotate. The horizontal plate-shaped end can be stably inserted into the annular groove 35 to ensure the locking effect; the upwardly inclined plate-shaped end allows the operator to apply force to the outside of the housing 31 to easily push the locking plate 33 to rotate, improving the convenience of installation and disassembly.

[0027] To improve the stability of the connection between the locking plate 33 and the square insert 34, a rack 331 is fixedly connected to the top of the inner end of the locking plate 33, and a toothed groove 351 adapted to the rack 331 is formed on the top wall of the annular groove 35. The two mesh with each other, effectively preventing the locking plate 33 from sliding or rotating relative to each other within the annular groove 35, avoiding loosening due to vibrations or other factors during UAV flight, and ensuring that the surveying instrument body 2 remains stable during operation. When the locking plate 33 is inserted into the annular groove 35, the rack 331 at the top of the inner end of the locking plate 33 precisely meshes with the toothed groove 351 on the top wall of the annular groove 35. This meshing structure, by increasing the friction and mechanical engagement between the two, limits the relative displacement between the locking plate 33 and the square insert 34, further strengthening the connection.

[0028] To facilitate the installation of the housing 31, a protruding frame 37 is fixedly fitted on the top of the housing 31. The protruding frame 37 has a through hole through which a bolt is threadedly connected to the drone body 1. The drone body 1 has a threaded hole that matches the bolt. The protruding frame 37 provides a stable mounting base for the connection between the housing 31 and the drone body 1. The threaded connection between the bolt and the threaded hole not only ensures a secure connection but also facilitates the disassembly and replacement of the housing 31. When the housing 31 is damaged, disassembly and assembly can be performed quickly, reducing maintenance costs and difficulty. When installing the housing 31, the protruding frame 37 is fitted against the bottom of the drone body 1, aligning the through hole on the protruding frame 37 with the threaded hole on the drone body 1. Then, the bolt is passed through the through hole and screwed into the threaded hole. Through the threaded engagement of the bolt and the threaded hole, the protruding frame 37 and the housing 31 fixedly connected to it are tightly fixed to the drone body 1. For disassembly, the housing 31 can be removed from the drone body 1 by unscrewing the bolt.

[0029] To ensure the locking plate 33 automatically inserts into the annular groove 35 during installation, a reset mechanism 4 is provided on the housing 31 to drive the locking plate 33 to automatically reset. The reset mechanism 4 includes a pressing plate 41 fixedly connected to the bottom of the spring 36 and a telescopic member 42 hinged to the top of the vertical groove 32 and hinged to the pressing plate 41. A linkage plate 43, hinged to the outer end of the telescopic member 42 and hinged to the outer end of the locking plate 33, is also present. The reset mechanism 4 enables the automatic reset of the locking plate 33, making the installation process more convenient and efficient. It eliminates the need for manual adjustment of the locking plate 33 to the accurate position, reducing operational steps and human error. It ensures that the locking plate 33 automatically and accurately inserts into the annular groove 35, improving the reliability and consistency of the installation. Furthermore, it assists in fixing the locking plate 33 during disassembly, facilitating the smooth removal of the surveying instrument body 2. During installation, the square insert 34 is inserted into the housing 31, pushing the pressing plate 41 and locking plate 33 upward. The pressing plate 41 drives the telescopic component 42 to move. Under the action of the linkage plate 43, the outer end of the locking plate 33 moves downward and the inner end lifts upward. When the housing 31 abuts against the surveyor body 2, the square insert 34 stops moving upward, and the annular groove 35 corresponds to the locking plate 33. Then, under the elastic force of the spring 36, the pressing plate 41 moves downward, and through the telescopic component 42 and the linkage plate 43, it drives the outer end of the locking plate 33 to move upward and the inner end to move downward, so that the locking plate 33 automatically inserts into the annular groove 35. During disassembly, the surveyor body 2 is pushed to move the square insert 34 upward and the pressing plate 41 upward. Through the telescopic component 42 and the linkage plate 43, the outer end of the locking plate 33 moves downward and tilts downward. By squeezing the two locking plates 33 together by hand, the inner end moves upward and disengages from the annular groove 35, thus achieving disassembly.

[0030] To enable the telescopic component 42 to adapt to the vertical movement of the extrusion plate 41, the telescopic component 42 includes a hinge plate 421 hinged to the top of the vertical groove 32 and an extension plate 422 slidably inserted into the inner end of the hinge plate 421 and hinged to the extrusion plate 41. The outer end of the hinge plate 421 is hinged to the linkage plate 43. When the extrusion plate 41 moves up and down, the extension plate 422 can slide within the hinge plate 421, realizing the change in the length of the telescopic component 42. This ensures that the telescopic component 42 maintains a stable hinged relationship with the extrusion plate 41 and the linkage plate 43 throughout the movement of the extrusion plate 41, ensuring smooth transmission between the various components of the reset mechanism 4 and preventing jamming or connection failure due to the movement of the extrusion plate 41, thus improving the reliability of the reset mechanism 4. When the extrusion plate 41 moves upward, it will cause the extension plate 422 to slide towards the inner end of the hinge plate 421, shortening the overall length of the telescopic member 42 to accommodate the upward movement of the extrusion plate 41. When the extrusion plate 41 moves downward, the extension plate 422 will slide out from the inner end of the hinge plate 421, extending the overall length of the telescopic member 42 to meet the downward movement requirement of the extrusion plate 41. This ensures that the hinge between the hinge plate 421 and the linkage plate 43, as well as the hinge between the extension plate 422 and the extrusion plate 41, can work normally throughout the entire movement of the extrusion plate 41.

[0031] To ensure the pressing plate 41 maintains vertical movement, a guide groove 311 is vertically formed on the side of the housing 31 away from the vertical groove 32. A guide plate 411, fixedly connected to the pressing plate 41, is slidably inserted into the guide groove 311. The cooperation between the guide groove 311 and the guide plate 411 ensures the pressing plate 41 maintains its vertical movement trajectory, preventing horizontal deviation or rotation during movement and ensuring the stability and accuracy of the pressing plate 41's movement. This makes the transmission of the reset mechanism 4 more precise and the reset action of the locking plate 33 more reliable, thereby improving the stability of the entire fixing device during installation and disassembly. When the pressing plate 41 moves up and down under the elastic force of the spring 36 or the push of the square insert rod 34, the guide plate 411, fixedly connected to the pressing plate 41, slides synchronously up and down within the guide groove 311. The guide groove 311 limits and guides the guide plate 411, restricting its movement to the vertical direction, thus ensuring the pressing plate 41 always maintains a vertical movement.

[0032] All of the above are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0033] Example 2 Unlike Embodiment 1, this embodiment also includes a locking mechanism 5 mounted on the housing 31 to lock the position of the extrusion plate 41. The locking mechanism 5 includes a screw 51 fixed to the guide plate 411 and a knurled nut 52 threaded onto the screw 51. The knurled nut 52 has anti-slip grooves at one end near the housing 31. When the extrusion plate 41 is locked, the knurled nut 52 abuts against the housing 31. The locking mechanism 5 can fix the extrusion plate 41 in a specific position, preventing movement of the extrusion plate 41 due to the spring force of the spring 36 or other external forces during maintenance, debugging, or other special circumstances. This ensures the stability of all components and facilitates related operations. The knurled nut 52 is designed for easy manual tightening, and the anti-slip grooves increase the friction between the hand and the nut, making locking and unlocking operations more effortless and convenient. When it is necessary to lock the position of the extrusion plate 41, turn the knurled nut 52 to move it along the screw 51 towards the housing 31 until the knurled nut 52 abuts against the housing 31. The friction between the knurled nut 52 and the housing 31, as well as the thread engagement between the screw 51 and the knurled nut 52, fix the guide plate 411, thereby locking the position of the extrusion plate 41 connected to the guide plate 411. To unlock, turn the knurled nut 52 in the opposite direction to move it away from the housing 31, release the fixation of the guide plate 411, and the extrusion plate 41 can resume its up-and-down movement.

[0034] Example 3 Unlike Embodiment 1, to reduce the gap between the extrusion plate 41 and the square insert 34, an elastic pad 44 is fixedly connected to the bottom of the extrusion plate 41. When the locking plate 33 is inserted into the annular groove 35, the elastic pad 44 abuts against the square insert 34. The elastic pad 44 reduces the gap between the extrusion plate 41 and the square insert 34, making their contact tighter. The elastic pad 44 has a certain degree of elasticity, which can act as a buffer between the extrusion plate 41 and the square insert 34, reducing the collision and wear caused by vibration during the flight of the UAV. At the same time, it can also enhance the stability of the square insert 34 within the housing 31, avoiding shaking caused by the gap. When the locking plate 33 is inserted into the annular groove 35, under the elastic force of the spring 36, the extrusion plate 41 moves downward, causing the elastic pad 44 to contact the top of the square insert 34 and generate compression. After being compressed, the elastic pad 44 undergoes elastic deformation, filling the gap between the extrusion plate 41 and the square insert 34, making them fit tightly together, thereby eliminating the gap.

[0035] The elastic pad 44 is made of rubber or silicone. Rubber or silicone has good elasticity and wear resistance, maintaining its elasticity over a long period, ensuring the long-lasting and stable cushioning and filling effect of the elastic pad 44. Simultaneously, these two materials have a certain degree of friction, increasing the contact friction with the square insertion rod 34, further enhancing the stability of the square insertion rod 34. Furthermore, they are chemically stable, resistant to aging, and resistant to high and low temperatures, adapting to various complex environments that may be encountered in surveying work. The rubber or silicone material itself has good elastic deformation capability. When the elastic pad 44 comes into contact with the square insertion rod 34, it deforms under pressure, thus tightly adhering to the surface of the square insertion rod 34 and filling the gaps. At the same time, its material properties ensure that it maintains good elasticity and structural integrity even after long-term use and repeated deformation, guaranteeing the durability of the cushioning and stabilizing effect.

[0036] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0037] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A surveying instrument fixing device for unmanned aerial vehicle surveying, comprising an unmanned aerial vehicle body (1), a surveying instrument body (2) electrically connected with the unmanned aerial vehicle body (1), and a fixing assembly (3) for fixing and mounting the surveying instrument body (2) on the unmanned aerial vehicle body (1). characterized in that The fixing assembly (3) comprises a housing (31) fixedly mounted on the bottom of the unmanned aerial vehicle body (1), and vertical grooves (32) symmetrically formed on both sides of the housing (31), the bottom of the vertical groove (32) is hingedly connected with a locking plate (33) extending into the housing (31), the bottom of the housing (31) is slidably connected with a square insertion rod (34) adapted thereto and connected with the surveying instrument body (2), the square insertion rod (34) is provided with an annular groove (35) for inserting the locking plate (33), the inside of the housing (31) is provided with a spring (36) for driving the square insertion rod (34) to move downward, when the locking plate (33) is inserted into the annular groove (35), the bottom wall of the end of the locking plate (33) close to the square insertion rod (34) abuts against the bottom wall of the vertical groove (32).

2. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 1, wherein: The end of the locking plate (33) close to the square insertion rod (34) is in the form of a horizontal plate, and the other end is in the form of an upwardly inclined plate.

3. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 1, wherein: The inside end of the locking plate (33) is fixedly connected with a rack (331), and the top wall of the annular groove (35) is provided with a gear slot (351) adapted to the rack (331).

4. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 1, wherein: The top of the housing (31) is fixedly provided with a convex frame (37), the convex frame (37) is inserted through a through hole with a bolt threadedly connected with the unmanned aerial vehicle body (1), and the unmanned aerial vehicle body (1) is provided with a threaded hole adapted to the bolt.

5. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 1, wherein: The housing (31) is provided with a reset mechanism (4) for driving the locking plate (33) to automatically reset, the reset mechanism (4) comprises an extrusion plate (41) fixedly connected to the bottom of the spring (36), and a telescopic member (42) hingedly connected to the top of the vertical groove (32) and hingedly connected to the extrusion plate (41), the outside end of the telescopic member (42) is hingedly connected with a linkage plate (43) hingedly connected with the outside end of the locking plate (33).

6. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 5, wherein: The telescopic member (42) comprises a hinged plate (421) hingedly connected to the top of the vertical groove (32), and an extension plate (422) slidably connected to the inside end of the hinged plate (421) and hingedly connected to the extrusion plate (41), the outside end of the hinged plate (421) is hingedly connected with the linkage plate (43).

7. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 5, wherein: The side of the housing (31) away from the vertical groove (32) is provided with a guide groove (311) in the vertical direction, and the inside of the guide groove (311) is slidably connected with a guide plate (411) fixedly connected with the extrusion plate (41).

8. The drone surveying instrument fixing device according to claim 7, wherein: Also include set on the shell (31) for the position of the extrusion plate (41) locking locking mechanism (5), the locking mechanism (5) includes fixed on the guide plate (411) on the screw (51) and screw thread on the screw (51) knurled nut (52), the knurled nut (52) near the shell (31) one end is provided with anti-skid pattern, when the extrusion plate (41) position locking, the knurled nut (52) with the shell (31) is in contact.

9. The mapping device fixing device for unmanned aerial vehicle mapping according to claim 5, wherein: The bottom of the extrusion plate (41) is fixedly connected with an elastic pad (44), when the locking plate (33) is inserted into the annular groove (35), the elastic pad (44) is in contact with the square insertion rod (34).

10. The drone surveying instrument fixing device according to claim 9, wherein: The elastic pad (44) is made of rubber or silicone.

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