A shock-absorbing gimbal mounting device for unmanned aerial vehicle surveying

Abstract

The application discloses a damping gimbal mounting device for unmanned aerial vehicle surveying, and belongs to the field of unmanned aerial vehicle equipment. The gimbal mounting device comprises a damping support, a gimbal main body connected with the damping support, and a connecting mechanism for fixing and mounting the gimbal main body on the damping support. The connecting mechanism comprises a fixed sleeve penetrating through the bottom of the damping support and fixedly connected with the top of the damping support, a plug sleeve inserted into the bottom of the fixed sleeve and fixedly connected with the gimbal main body, a first arc-shaped plate fixedly connected with the upper end side of the plug sleeve, and an arc-shaped groove provided in the fixed sleeve and adapted to the first arc-shaped plate. The convex surface of the first arc-shaped plate is outwardly arranged. Through the design of the elastic component, the first arc-shaped plate can be provided with continuous outward force, so that the convex surface of the first arc-shaped plate is always closely attached to the inner wall of the arc-shaped groove, the first arc-shaped plate is prevented from being separated from the arc-shaped groove due to the flight vibration of the unmanned aerial vehicle, and the long-term stability of the connecting mechanism is ensured.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) equipment technology, specifically a shock-absorbing gimbal mounting device for UAV surveying. Background Technology

[0002] In the field of UAV surveying, the gimbal mounting device is one of the core components to ensure surveying accuracy. Because UAVs generate vibrations in multiple directions, such as vertical and horizontal, during flight, if these vibrations are directly transmitted to the surveying instrument (such as a camera), it will lead to blurred surveying data and reduced accuracy. Therefore, vibration control is achieved through the gimbal mounting device, and its performance directly affects the quality of the overall surveying task.

[0003] Currently, the industry has developed relevant technical solutions for vibration reduction and image stabilization requirements of gimbal mounting devices. In terms of vibration reduction mechanism design, the mainstream solution adopts a double-layer vibration reduction structure, which includes a first vibration reduction mechanism and a second vibration reduction mechanism. The first vibration reduction mechanism, through the cooperation of sliding components, buffer components, and guide components, focuses on vertical vibration isolation, reducing the impact of vertical vibration on the camera. The second vibration reduction mechanism utilizes the magnetic force generated by the first and second magnets, combined with transmission components, rotation components, and telescopic components, to counteract lateral vibration and reduce the impact of horizontal vibration on the surveying instrument. Regarding the image stabilization connection structure, existing designs place multiple balloons between the upper and lower ends, and use a magnetic block compression structure to form a dynamic buffer layer, thereby dispersing vibration energy and preventing excessive force at a single point from damaging the equipment. Simultaneously, vibration reduction technology has achieved a combination of physical vibration reduction (such as rubber shock-absorbing balls and air springs) and active compensation technology (such as motor reverse compensation and dynamic adjustment algorithms), which can effectively eliminate high-frequency vibration and low-frequency drift interference, providing a fundamental guarantee for surveying accuracy.

[0004] However, the existing connection methods between the drone gimbal and the drone shell still have significant shortcomings. Currently, two main connection methods are used: electric clamping and bolt fixing. Although the electric clamping structure can achieve a certain degree of rapid fixing, the clamping force is prone to weakening after long-term use. Although the bolt fixing method provides a stable connection, each screw hole must be aligned and tightened during installation, and each screw must also be removed during disassembly. This operation is cumbersome and cannot meet the needs of surveying operations for rapid installation and disassembly of the gimbal to facilitate equipment replacement or maintenance, seriously affecting work efficiency.

[0005] Therefore, this application provides a shock-absorbing gimbal mounting device for UAV mapping to solve the above problems. Utility Model Content

[0006] This application provides a shock-absorbing gimbal mounting device for UAV surveying, aiming to solve the problems mentioned in the background art, such as the existing UAV gimbal and UAV shell connection method using electric clamping or bolt fixing, which has the problems of easy attenuation of electric clamping force, cumbersome bolt fixing operation, inability to achieve quick installation and disassembly of gimbal, and thus affecting the efficiency of surveying operations.

[0007] To achieve the above objectives, this application provides the following technical solution: a shock-absorbing gimbal mounting device for UAV mapping, comprising a shock-absorbing bracket, a gimbal body connected to the shock-absorbing bracket, and a connecting mechanism for fixing the gimbal body onto the shock-absorbing bracket; the connecting mechanism includes a fixed sleeve penetrating the bottom of the shock-absorbing bracket and fixedly connected to its top, an insert cylinder inserted into the bottom of the fixed sleeve and fixedly connected to the gimbal body, a first arc-shaped plate fixedly connected to the upper side of the insert cylinder, and an arc-shaped groove formed in the fixed sleeve for fitting the first arc-shaped plate; wherein, the convex surface of the first arc-shaped plate faces outward. The insert cylinder fixedly connected to the gimbal body is aligned and inserted into the fixed sleeve fixedly connected to the shock-absorbing bracket; the first arc-shaped plate on the upper side of the insert cylinder enters the fixed sleeve along with the insert cylinder, and its convex surface-facing structure fits and engages with the arc-shaped groove in the fixed sleeve; since the width of the four first arc-shaped plates after unfolding is greater than the width of the insert cylinder, after engagement, the insert cylinder can be directly locked in the fixed sleeve, completing the connection between the gimbal body and the shock-absorbing bracket.

[0008] Preferably, to secure the opening between the tops of the first arc-shaped plates: a fixing block is provided above the insert, and the lower edge of the fixing block is fixedly connected to the upper end of the first arc-shaped plate. This reinforcement of the opening between the tops of the first arc-shaped plates prevents the opening from expanding or deforming due to vibration or external forces, ensuring that the first arc-shaped plates remain stably engaged within the arc-shaped groove, further improving the overall stability of the connecting mechanism.

[0009] Preferably, to facilitate insertion of the fixing block into the fixing sleeve, the top of the fixing block is conical. This reduces the resistance when inserting the fixing block into the fixing sleeve, reduces the difficulty of alignment during insertion, and enables quick and smooth insertion of the fixing block, the first arc-shaped plate, and the insert, thereby improving the convenience of gimbal installation.

[0010] Preferably, to ensure that the convex surface of the first arc-shaped plate always maintains an outward force: the insert is internally equipped with an elastic component, which includes a fixed cylinder fixedly disposed within the insert, a guide cylinder fixedly connected around the fixed cylinder, a guide rod slidably inserted into the guide cylinder and fixedly connected to the inner center of the first arc-shaped plate, and a spring disposed within the guide cylinder and fixedly connected to the guide rod. Through the design of the elastic component, a continuous outward force can be provided to the first arc-shaped plate, ensuring that its convex surface always tightly conforms to the inner wall of the arc-shaped groove, preventing the first arc-shaped plate from detaching from the arc-shaped groove due to drone flight vibrations, and ensuring the long-term stability of the connection mechanism.

[0011] Preferably, to ensure the stability of the connection between the insert and the fixed sleeve: both sides of the fixed sleeve are provided with openings communicating with the arc-shaped groove, and the interior of each opening is provided with a locking block for fixed connection with the first arc-shaped plate, the top of the locking block being inclined. The cooperation between the locking block and the opening enhances the axial connection stability between the insert and the fixed sleeve, preventing the insert from falling out of the fixed sleeve due to vibration or gravity during UAV flight, further improving the anti-loosening capability of the connection mechanism.

[0012] Preferably, to facilitate disassembly of the locking block from the opening: a second arc-shaped plate is fixedly connected to the outer side of the fixing sleeve corresponding to the opening, and a protrusion is fixedly connected to the inner side of the second arc-shaped plate. The end of the protrusion away from the second arc-shaped plate is inserted into the opening. Through the cooperation of the second arc-shaped plate and the protrusion, the insertion tube and the fixing sleeve can be quickly disassembled without the need for tools; the locking block can be released by manual squeezing, significantly improving the operational efficiency during gimbal maintenance and replacement.

[0013] This application, through the design of the connection mechanism, enables the rapid and stable assembly of the gimbal body and the shock-absorbing bracket, eliminating the need for traditional and cumbersome bolt fixing or electric clamping. This effectively improves the efficiency of gimbal installation and disassembly, while ensuring the structural stability after connection and preventing vibration from causing the connection to loosen and affecting the mapping accuracy.

[0014] This application, through the design of the elastic component, can provide a continuous outward force to the first arc-shaped plate, ensuring that its convex surface is always tightly attached to the inner wall of the arc-shaped groove, preventing the first arc-shaped plate from detaching from the arc-shaped groove due to the vibration of the drone during flight, and ensuring the long-term stability of the connection mechanism.

[0015] This application enhances the axial connection stability between the insert and the fixed sleeve by cooperating with the locking block and the through-hole, preventing the insert from falling out of the fixed sleeve due to vibration or gravity during the flight of the UAV, and further improving the anti-loosening ability of the connection mechanism.

[0016] This application achieves quick disassembly of the insert and the fixed sleeve through the cooperation of the second arc plate and the protrusion. Without the need for tools, the locking block can be released by manual squeezing, which greatly improves the operation efficiency during gimbal maintenance and replacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a shock-absorbing gimbal mounting device for UAV mapping.

[0018] Figure 2 This is a structural cross-sectional view of the connecting mechanism and the elastic component;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fixed sleeve;

[0021] Figure 5 This is a schematic diagram of the structure connecting the curved plate, the insert, and the elastic component.

[0022] In the picture:

[0023] 1. Shock-absorbing bracket; 2. Gimbal body; 3. Connecting mechanism; 31. Fixing sleeve; 311. Through port; 312. Second arc plate; 313. Protrusion; 32. Insert sleeve; 33. First arc plate; 331. Fixing block; 332. Locking block; 34. Arc groove; 4. Elastic component; 41. Fixing cylinder; 42. Guide cylinder; 43. Guide rod; 44. Spring. 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] This embodiment provides a shock-absorbing gimbal mounting device for UAV mapping, such as... Figure 1-5As shown, the gimbal mounting device includes a shock-absorbing bracket 1, a gimbal body 2 connected to the shock-absorbing bracket 1, and a connecting mechanism 3 for fixing the gimbal body 2 onto the shock-absorbing bracket 1. The connecting mechanism 3 includes a fixing sleeve 31 that passes through the bottom of the shock-absorbing bracket 1 and is fixedly connected to its top; an insert sleeve 32 that is inserted into the bottom of the fixing sleeve 31 and fixedly connected to the gimbal body 2; a first arc-shaped plate 33 that is fixedly connected to the upper side of the insert sleeve 32; and an arc-shaped groove 34 formed in the fixing sleeve 31 for fitting the first arc-shaped plate 33. The convex surface of the first arc-shaped plate 33 faces outward. This device enables rapid and stable assembly of the gimbal body 2 and the shock-absorbing bracket 1, eliminating the need for traditional and cumbersome bolt fixing or electric clamping, effectively improving the efficiency of gimbal installation and disassembly, while ensuring the structural stability after connection and preventing vibration from causing loosening of the connection and affecting the mapping accuracy. The insert 32, which is fixedly connected to the gimbal body 2, is aligned and inserted into the fixed sleeve 31, which is fixedly connected to the shock absorber bracket 1. The first arc-shaped plate 33 on the upper side of the insert 32 enters the fixed sleeve 31 along with the insert 32. Its convex surface facing outward will fit and engage with the arc-shaped groove 34 in the fixed sleeve 31. Since the width of the four first arc-shaped plates 33 after unfolding is greater than the width of the insert 32, the insert 32 can be directly locked in the fixed sleeve 31 after engagement, thus completing the connection between the gimbal body 2 and the shock absorber bracket 1.

[0026] To secure the opening between the tops of the first arc-shaped plates 33, a fixing block 331 is provided above the insert 32, with its lower edge fixedly connected to the upper end of the first arc-shaped plate 33. This reinforcement of the opening between the tops of the first arc-shaped plates 33 prevents the opening from expanding or deforming due to vibration or external forces, ensuring that the first arc-shaped plates 33 remain stably engaged within the arc-shaped groove 34, further enhancing the overall stability of the connecting mechanism 3. The rigid support of the fixing block 331 limits the expansion of the opening at the top of the first arc-shaped plate 33, preventing deformation due to force dispersion at the top of the first arc-shaped plate 33, thereby maintaining the fit between the first arc-shaped plate 33 and the arc-shaped groove 34.

[0027] To facilitate the insertion of the fixing block 331 into the fixing sleeve 31, the top of the fixing block 331 is conical. This reduces the resistance of inserting the fixing block 331 into the fixing sleeve 31, simplifies alignment during insertion, and enables quick and smooth insertion of the fixing block 331, the first arc-shaped plate 33, and the insert 32, thus improving the convenience of gimbal installation. When the fixing block 331, along with the first arc-shaped plate 33 and the insert 32, needs to be inserted into the fixing sleeve 31, the conical surface at the top of the fixing block 331 will first contact the bottom opening of the fixing sleeve 31. The conical structure guides the fixing block 331 to automatically adjust the insertion angle. Even with slight alignment deviations, it can smoothly enter the fixing sleeve 31 through the guiding action of the conical surface, without the need for repeated adjustments to the alignment position.

[0028] To ensure that the convex surface of the first arc-shaped plate 33 always maintains an outward force, an elastic component 4 is provided inside the insert 32. The elastic component 4 includes a fixed cylinder 41 fixedly installed inside the insert 32, a guide cylinder 42 fixedly connected around the fixed cylinder 41, a guide rod 43 slidably inserted into the guide cylinder 42 and fixedly connected to the inner center of the first arc-shaped plate 33, and a spring 44 installed inside the guide cylinder 42 and fixedly connected to the guide rod 43. This provides a continuous outward force to the first arc-shaped plate 33, ensuring that its convex surface always fits tightly against the inner wall of the arc-shaped groove 34, preventing the first arc-shaped plate 33 from detaching from the arc-shaped groove 34 due to vibrations during drone flight, and ensuring the long-term stability of the connecting mechanism 3. The fixing cylinder 41 of the elastic component 4 is fixed inside the insert cylinder 32. A guide rod 43 is inserted into the guide cylinder 42 around the fixing cylinder 41. One end of the guide rod 43 is fixedly connected to the middle of the inner side of the first arc plate 33, and the other end is fixed to the inside of the guide cylinder 42 through the spring 44. In its natural state, the spring 44 will generate an elastic force to the outside of the guide cylinder 42. This elastic force pushes the guide rod 43 to slide outward along the guide cylinder 42. The guide rod 43 then drives the middle of the inner side of the first arc plate 33, so that the convex surface of the first arc plate 33 continuously adheres to the inner wall of the arc groove 34.

[0029] To ensure the stability of the connection between the insert 32 and the fixed sleeve 31, both sides of the fixed sleeve 31 are provided with openings 311 that communicate with the arc-shaped groove 34. Inside each opening 311 is a locking block 332 for fixed connection with the first arc-shaped plate 33. The top of the locking block 332 is inclined. The cooperation between the locking block 332 and the opening 311 enhances the axial connection stability between the insert 32 and the fixed sleeve 31, preventing the insert 32 from falling out of the fixed sleeve 31 due to vibration or gravity during drone flight, further improving the anti-loosening capability of the connection mechanism 3. When the insert 32 drives the first arc plate 33 and the fixing block 331 to insert into the fixing sleeve 31, the locking block 332 on the side of the first arc plate 33 will move upward with the whole; during the upward movement, the inclined surface of the top of the locking block 332 will be squeezed by the inner wall of the fixing sleeve 31 and the inner wall of the arc groove 34, forcing the convex surface of the first arc plate 33 to be temporarily deformed in a planar state; when the locking block 332 moves to the position corresponding to the through opening 311 on both sides of the fixing sleeve 31, the first arc plate 33 resets under its own elasticity and the action of the elastic component 4, pushing the locking block 332 into the through opening 311, forming an axial lock, preventing the insert 32 from falling downward.

[0030] To facilitate disassembly of the locking block 332 from the through-hole 311, a second arc-shaped plate 312 is fixedly connected to the outer side of the fixed sleeve 31 corresponding to the through-hole 311. A protrusion 313 is fixedly connected to the inner side of the second arc-shaped plate 312, with one end of the protrusion 313, away from the second arc-shaped plate 312, inserted into the through-hole 311. Through the cooperation of the second arc-shaped plate 312 and the protrusion 313, the insertion sleeve 32 and the fixed sleeve 31 can be quickly disassembled without the need for tools; the locking block 332 can be released by manual squeezing, significantly improving the operational efficiency during gimbal maintenance and replacement. When it is necessary to disassemble the insert 32, manually press the second arc-shaped plate 312 on the outside of the fixed sleeve 31 towards the direction of the fixed sleeve 31; the second arc-shaped plate 312 deforms under force, causing the protrusion 313 fixed on its inner side to move into the through-hole 311; after the protrusion 313 enters the through-hole 311, it will push the locking block 332, causing the locking block 332 to move out of the through-hole 311 and disengage from the locked state; at this time, pull the insert 32 down, and the first arc-shaped plate 33 and the fixed block 331 will move out of the fixed sleeve 31 together, completing the disassembly.

[0031] 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.

[0032] 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 shock-absorbing gimbal mounting device for UAV mapping, comprising a shock-absorbing bracket (1), a gimbal body (2) connected to the shock-absorbing bracket (1), and a connecting mechanism (3) for fixing the gimbal body (2) on the shock-absorbing bracket (1); Its features are: The connecting mechanism (3) includes a fixed sleeve (31) that passes through the bottom of the shock absorber bracket (1) and is fixedly connected to its top, an insert (32) that is inserted into the bottom of the fixed sleeve (31) and fixedly connected to the gimbal body (2), a first arc plate (33) that is fixedly connected to the upper side of the insert (32), and an arc groove (34) opened in the fixed sleeve (31) for fitting the first arc plate (33); The convex surface of the first arc-shaped plate (33) faces outward.

2. The shock-absorbing gimbal mounting device for UAV mapping according to claim 1, characterized in that: A fixing block (331) is provided above the insert (32), and the lower side of the fixing block (331) is fixedly connected to the upper end of the first arc plate (33).

3. The shock-absorbing gimbal mounting device for UAV mapping according to claim 2, characterized in that: The top of the fixing block (331) is conical.

4. The shock-absorbing gimbal mounting device for UAV mapping according to claim 1, characterized in that: The insert (32) is provided with an elastic component (4). The elastic component (4) includes a fixed cylinder (41) fixedly disposed in the insert (32), a guide cylinder (42) fixedly connected around the fixed cylinder (41), a guide rod (43) slidably inserted in the guide cylinder (42) and fixedly connected to the middle of the inner side of the first arc plate (33), and a spring (44) disposed in the guide cylinder (42) and fixedly connected to the guide rod (43).

5. The shock-absorbing gimbal mounting device for UAV mapping according to claim 1, characterized in that: Both sides of the fixed sleeve (31) are provided with openings (311) that communicate with the arc groove (34). The opening (311) is provided with a locking block (332) for fixed connection with the first arc plate (33). The top of the locking block (332) is inclined.

6. The shock-absorbing gimbal mounting device for UAV mapping according to claim 5, characterized in that: The fixed sleeve (31) is fixedly connected to a second arc-shaped plate (312) at the outer position corresponding to the opening (311). A protrusion (313) is fixedly connected to the inner side of the second arc-shaped plate (312). The end of the protrusion (313) away from the second arc-shaped plate (312) is inserted into the opening (311).

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