Automatic leveling and bumping prevention integrated device for surveying, mapping and camera shooting of unmanned aerial vehicle

Abstract

The utility model discloses an automatic leveling and bumping prevention integrated device for unmanned aerial vehicle surveying, mapping and camera shooting, which belongs to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body, a mounting plate is mounted at the bottom of the unmanned aerial vehicle body, four connecting rods are fixedly mounted at the bottom of the mounting plate, and the same positioning ring is fixedly mounted at the bottom ends of the four connecting rods. A camera is arranged between the mounting plate and the positioning ring; the omni-directional damping mechanism comprises twelve damping cylinders, the twelve damping cylinders are divided into two groups and are rotatably mounted on the sides, close to each other, of the mounting plate and the positioning ring respectively, one end of each damping cylinder is slidably connected with an ejector rod, and the ejector rods are rotatably connected with the camera. Through mechanical self-adaptive damping, dynamic self-cleaning and compact integrated design, the limitation that a traditional unmanned aerial vehicle camera pan-tilt depends on electronic stability augmentation is broken through, high-precision anti-shaking is achieved under the condition of no extra power consumption, meanwhile, the problem of environmental pollution is solved, and the unmanned aerial vehicle camera pan-tilt is particularly suitable for long-endurance and high-stability requirements such as surveying and mapping and routing inspection.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned plane technical field, concretely relates to an automatic leveling anti-bumping integrated device for unmanned plane surveying and mapping camera. BACKGROUND

[0002] With the rapid development of unmanned plane technology, unmanned plane surveying and mapping has been widely applied in land resource investigation, city planning, disaster monitoring and other fields. However, in the process of unmanned plane aerial photography operation, due to the influence of external factors such as air flow disturbance and mechanical vibration, the camera equipment carried often produces violent shaking, which seriously affects the image acquisition quality, especially in high-precision surveying and mapping operation, the influence is particularly prominent.

[0003] The common unmanned plane camera stabilizing scheme in the market at present mainly divides into two categories: one is to adopt electronic stabilizing holder, detects attitude change through gyroscope and accelerometer, and utilizes servo motor to carry out real-time compensation;The other is to adopt mechanical damping device, absorbs vibration energy through spring, rubber and other elastic elements. However, electronic stabilizing holder has problems such as complex structure, high cost and large power consumption, and control lag phenomenon is prone to appear under high-intensity vibration environment. And the traditional mechanical damping device can only provide single-direction damping effect, is difficult to deal with complex multi-direction vibration in the process of unmanned plane flight, and lacks self-adaptive adjustment capability, and the damping effect obviously decreases when load changes or violent vibration.

[0004] In terms of harsh environment adaptability, the prior art also has obvious deficiencies. When the unmanned plane operates in rainy or sandy environment, the camera lens is easily polluted by water droplets, dust and the like, which seriously affects the imaging quality. Although some products are equipped with protective covers, the static protective covers cannot automatically remove the attached objects, and need to be cleaned frequently, which greatly reduces the operation efficiency.

[0005] In addition, most of the existing damping devices adopt open structure design, and the damping elements are directly exposed outside, which is easy to be eroded by rain, dust and other environmental factors, resulting in shortened service life. In the long-term use process, the damping performance will gradually deteriorate, and needs to be maintained and replaced regularly, increasing the use cost;

[0006] To solve the above problems, an automatic leveling anti-bumping integrated device for unmanned plane surveying and mapping camera is proposed in the present application. Utility model content

[0007] In view of the problems in the related art, the utility model proposes an automatic leveling anti-bumping integrated device for unmanned plane surveying and mapping camera to overcome the above technical problems existing in the prior art.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] The utility model provides an automatic leveling and anti-toss integrated device for unmanned aerial vehicle surveying and mapping camera, including unmanned aerial vehicle body, the bottom of unmanned aerial vehicle body is installed with mounting plate, four connecting rods are fixedly installed on the bottom of mounting plate, the bottom of four connecting rods is fixedly installed with same positioning ring, and the camera is arranged between mounting plate and positioning ring;

[0010] The omnibearing damping mechanism includes twelve damping cylinders, the twelve damping cylinders are rotatably installed on one side of the mounting plate and the positioning ring that are close to each other, and a top rod is slidably connected to one end of the damping cylinder.

[0011] Preferably, the omnibearing damping mechanism further comprises a buffer plate slidably installed on the inner wall of the damping cylinder, the buffer plate is slidably connected to the corresponding top rod, and a plurality of flow guide holes are formed in the buffer plate, and the top of the upper damping cylinder and the bottom of the lower damping cylinder are fixedly installed with a supporting spring, and the top end of the supporting spring is fixedly connected to the corresponding buffer plate.

[0012] Through the sliding connection of the buffer plate and the inner wall of the damping cylinder, when the top rod moves, the buffer plate can extrude the liquid in the damping cylinder to form a buffer, and under the action of the flow guide hole, a speed reduction buffer effect is formed, and the supporting spring is arranged on the inner wall of the bottom of the damping cylinder, which can facilitate the weight support of the camera by the buffer plate and facilitate the top pushing reset.

[0013] Preferably, one end of the top rod penetrates the buffer plate and is fixedly installed with a positioning plate, three slide rods are slidably connected to the upper side of the positioning plate, a plug plate is fixedly installed at one end of the slide rod, the plug plate cooperates with the corresponding flow guide hole, a top spring is sleeved on the slide rod, and the top spring is located between the plug plate and the positioning plate.

[0014] Through the arrangement of the slide rod and the plug plate on the positioning plate, three of the plurality of flow guide holes can be closed, so that the moving speed of the buffer plate during reset is reduced, thereby forming a damping effect and increasing the damping function.

[0015] Preferably, a transparent cover is rotatably connected between the mounting plate and the positioning ring, a fixed plate is fixedly installed at the bottom of the positioning ring, a motor is fixedly installed at the bottom of the fixed plate, and the output shaft of the motor is in transmission connection with the transparent cover.

[0016] Through the arrangement of the transparent cover, the camera can be isolated and protected.

[0017] Preferably, a driving gear is fixedly installed on the output shaft of the motor, an outer gear ring is fixedly installed on the outer side of the transparent cover, and the driving gear and the outer gear ring are in meshing engagement.

[0018] The output shaft of the motor is engaged with the outer gear ring through the meshing of the driving gear, so that the transparent cover can be driven to rotate, and then the rainwater impurities adhered to the transparent cover can be cleaned under the action of the centrifugal force of the transparent cover, so that the camera can be more clearly shot.

[0019] In summary, the technical effects and advantages of the utility model are:

[0020] 1. All -round multi -stage damping system

[0021] Hydraulic-spring composite buffer: 12 damping cylinders (divided into upper and lower groups) adopt hydraulic damping (buffer plate + flow guide hole) and supporting spring to cooperate, which can not only absorb high-frequency vibration (such as air flow disturbance), but also provide stable support to avoid the resonance problem of traditional single spring damping.

[0022] Self-adaptive damping adjustment: the dynamic cooperation (controlled by slide bar and top spring) of the plug plate and the flow guide hole can close part of the flow guide hole in the reset stage, forming variable damping, slowing down the rebound speed of the camera, and preventing secondary shaking.

[0023] 2. Automatic leveling and dynamic stabilization technology

[0024] Gimbal type connection design: the damping cylinder and the top rod adopt rotary + sliding composite connection, so that the camera can keep horizontal through the cooperative action of the multidirectional damping cylinder when it shakes in any direction, without additional electronic stabilization holder.

[0025] Weight self-adaptive support: the pre-pressure of the supporting spring can match the weight of the camera, ensuring consistent damping effect under different loads, and avoiding performance fluctuations caused by load changes in traditional damping systems.

[0026] 3. Self-cleaning transparent cover structure

[0027] Centrifugal cleaning mechanism: the motor drives the driving gear to mesh with the outer gear ring, drives the transparent cover to rotate at high speed, and uses centrifugal force to shake off rainwater and dust, solving the problem of image quality degradation caused by lens contamination in aerial photography.

[0028] Modular protection design: the transparent cover and the camera are installed separately, which does not affect the shooting field of view, and is convenient for disassembly and maintenance, and is more suitable for complex environments than traditional fixed protective cover.

[0029] 4. Compact integrated layout

[0030] Space-optimized damping array: 12 damping cylinders are distributed in a ring shape to realize multidimensional damping in limited space, which is more resistant to torsion than the traditional four-corner suspension scheme, especially suitable for anti-bumping requirements during high-speed maneuvering of unmanned aerial vehicles.

[0031] Integrated power transmission: the gear transmission mechanism of the motor and the transparent cover is integrated in the fixed plate, without external cleaning device, reducing wind resistance and weight.

[0032] 5. Environmental adaptability is enhanced

[0033] Impact-resistant liquid damping: the shock-absorbing cylinder is filled with high-viscosity liquid (such as silicone oil), which is throttled and buffered through the flow guide hole, effectively absorbing the instantaneous impact caused by the take-off or sudden wind shear of the unmanned aerial vehicle.

[0034] Dustproof and splashproof sealing: the transparent cover and the positioning ring form a closed space, avoiding dust / water entering the shock-absorbing mechanism, prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 It is a schematic diagram of the upward structure of the utility model;

[0037] Figure 3 It is a schematic diagram of the camera and the omnidirectional shock-absorbing mechanism structure of the utility model;

[0038] Figure 4 It is a schematic diagram of the omnidirectional shock-absorbing mechanism top view structure of the utility model;

[0039] Figure 5 It is a schematic diagram of the buffer plate structure of the utility model;

[0040] Figure 6 It is a schematic diagram of the buffer plate structure of the utility model; Figure 4 It is a schematic diagram of the structure of part A of the utility model.

[0041] In the figure:

[0042] 1, unmanned aerial vehicle body; 2, mounting plate; 3, connecting rod; 4, positioning ring; 5, camera; 6, omnidirectional shock-absorbing mechanism; 61, shock-absorbing cylinder; 62, top rod; 63, buffer plate; 64, flow guide hole; 65, supporting spring; 66, positioning plate; 67, sliding rod; 68, plug plate; 69, top spring; 7, fixed plate; 8, motor; 9, driving gear; 10, outer gear ring; 11, transparent cover. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0044] Refer to Figures 1-6The utility model provides an automatic leveling and anti-toss integrated device for unmanned aerial vehicle surveying and photographing, which comprises an unmanned aerial vehicle body 1, an installation plate 2 is installed at the bottom of the unmanned aerial vehicle body 1, four connecting rods 3 are fixedly installed at the bottom of the installation plate 2, a same positioning ring 4 is fixedly installed at the bottom end of the four connecting rods 3, and a camera 5 is arranged between the installation plate 2 and the positioning ring 4.

[0045] The omnibearing damping mechanism 6 comprises twelve damping cylinders 61, the twelve damping cylinders 61 are rotatably installed at the side, which is close to the positioning ring 4, of the installation plate 2 in two groups, one end of the damping cylinder 61 is slidably connected with a jacking rod 62, and the jacking rod 62 is rotatably connected with the camera 5.

[0046] With reference to Figure 3 And Figure 4 The omnibearing damping mechanism 6 further comprises a buffer plate 63, the buffer plate 63 is slidably installed on the inner wall of the damping cylinder 61, the buffer plate 63 is slidably connected with the corresponding jacking rod 62, a plurality of flow guide holes 64 are formed in the buffer plate 63, the top damping cylinder 61 and the bottom damping cylinder 61 are both fixedly installed with a supporting spring 65, the top end of the supporting spring 65 is fixedly connected with the corresponding buffer plate 63, one end of the jacking rod 62 penetrates through the buffer plate 63 and is fixedly installed with a positioning plate 66, three sliding rods 67 are slidably connected with the positioning plate 66, one end of the sliding rod 67 is fixedly installed with a plug plate 68, the plug plate 68 is matched with the corresponding flow guide hole 64, a top spring 69 is sleeved on the sliding rod 67, the top spring 69 is located between the plug plate 68 and the positioning plate 66, through the sliding connection between the buffer plate 63 and the inner wall of the damping cylinder 61, when the jacking rod 62 moves, the buffer plate 63 can extrude the liquid in the damping cylinder 61 to form a buffer, and under the action of the flow guide hole 64, a speed reduction buffering effect is formed, and the supporting spring 65 is arranged on the inner wall at the bottom of the damping cylinder 61, so that the camera 5 can be conveniently supported in weight by the buffer plate 63, and the jacking rod 62 can be conveniently reset, through the arrangement of the sliding rod 67 and the plug plate 68 on the positioning plate 66, three flow guide holes 64 in the plurality of flow guide holes 64 can be conveniently closed, so that the moving speed of the buffer plate 63 during resetting is reduced, thereby forming a damping effect and increasing the damping function.

[0047] With reference to Figure 2The transparent cover 11 is rotatably connected between the mounting plate 2 and the positioning ring 4, the bottom of the positioning ring 4 is fixedly provided with the fixed plate 7, the bottom of the fixed plate 7 is fixedly provided with the motor 8, the output shaft of the motor 8 is in transmission connection with the transparent cover 11, the output shaft of the motor 8 is fixedly provided with the driving gear 9, the outer side of the transparent cover 11 is fixedly provided with the outer gear ring 10, the driving gear 9 and the outer gear ring 10 are in meshing with each other, through the setting of the transparent cover 11, the camera 5 can be isolated and protected, the output shaft of the motor 8 drives the transparent cover 11 to rotate through the meshing of the driving gear 9 and the outer gear ring 10, and then the rainwater and impurities adhered to the transparent cover 11 can be cleaned under the centrifugal force of the transparent cover 11, so that the camera 5 can take clearer pictures.

[0048] Working principle: when the unmanned aerial vehicle body 1 is flying, the camera 5 is stably supported by the plurality of damping cylinders 61 and the jacks 62, when the camera 5 vibrates, the corresponding jack 62 is driven to move by the camera 5, the relative movement is formed between the jack 62 and the damping cylinder 61, so as to drive the buffer plate 63 to move, through the sliding connection between the buffer plate 63 and the inner wall of the damping cylinder 61, when the jack 62 moves, the liquid in the damping cylinder 61 can be extruded by the buffer plate 63 to form buffering, and the speed reduction buffering effect is formed under the action of the flow guide hole 64, the supporting spring 65 is arranged on the inner wall at the bottom of the damping cylinder 61, which can conveniently support the weight of the camera 5 through the buffer plate 63, and conveniently push and reset, through the setting of the slide rod 67 and the plug plate 68 on the positioning plate 66, three of the plurality of flow guide holes 64 can be closed, so that the moving speed of the buffer plate 63 is reduced when resetting, thereby forming a damping effect and increasing the damping function, and when the unmanned aerial vehicle body 1 is flying, the motor 8 switch is started, the output shaft of the motor 8 is in meshing with the driving gear 9 and the outer gear ring 10, so as to drive the transparent cover 11 to rotate, and then the rainwater and impurities adhered to the transparent cover 11 can be cleaned under the centrifugal force of the transparent cover 11, so that the camera 5 can take clearer pictures.

[0049] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An unmanned aerial vehicle surveying camera automatic leveling and anti-turbulence integrated device, comprising an unmanned aerial vehicle body (1), characterized in that, The bottom of the unmanned aerial vehicle body (1) is provided with a mounting plate (2), the bottom of the mounting plate (2) is fixedly provided with four connecting rods (3), the bottom ends of the four connecting rods (3) are fixedly provided with the same positioning ring (4), and a camera (5) is arranged between the mounting plate (2) and the positioning ring (4). The omnibearing damping mechanism (6) comprises twelve damping cylinders (61), the twelve damping cylinders (61) are rotatably arranged on one side of the mounting plate (2) and the positioning ring (4) close to each other, one end of the damping cylinder (61) is slidably connected with a top rod (62), and the top rod (62) is rotatably connected with the camera (5).

2. The unmanned aerial vehicle surveying and photographing automatic leveling and anti-bumping integrated device according to claim 1, characterized in that, The omnibearing damping mechanism (6) further comprises a buffer plate (63), the buffer plate (63) is slidably arranged on the inner wall of the damping cylinder (61), the buffer plate (63) is slidably connected with the corresponding top rod (62), a plurality of flow guide holes (64) are formed in the buffer plate (63), the top damping cylinder (61) and the bottom damping cylinder (61) are both fixedly provided with a supporting spring (65), and the top end of the supporting spring (65) is fixedly connected with the corresponding buffer plate (63).

3. The automatic leveling and anti-turbulence integrated device for surveying and mapping photography of the unmanned aerial vehicle according to claim 2, characterized in that, One end of the top rod (62) penetrates through the buffer plate (63) and is fixedly provided with a positioning plate (66), three slide rods (67) are slidably arranged on the positioning plate (66), one end of the slide rod (67) is fixedly provided with a plug plate (68), the plug plate (68) is matched with the corresponding flow guide hole (64), a top spring (69) is sleeved on the slide rod (67), and the top spring (69) is located between the plug plate (68) and the positioning plate (66).

4. The unmanned aerial vehicle surveying and photographing automatic leveling and anti-bumping integrated device according to claim 1, characterized in that, The mounting plate (2) and the positioning ring (4) are rotatably connected with a transparent cover (11), the bottom of the positioning ring (4) is fixedly provided with a fixed plate (7), the bottom of the fixed plate (7) is fixedly provided with a motor (8), and the output shaft of the motor (8) is in transmission connection with the transparent cover (11).

5. The automatic leveling and anti-turbulence integrated device for surveying and mapping photography of the unmanned aerial vehicle according to claim 4, characterized in that, The output shaft of the motor (8) is fixedly provided with a driving gear (9), the outer side of the transparent cover (11) is fixedly provided with an outer gear ring (10), and the driving gear (9) and the outer gear ring (10) are in meshing connection.

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