Unmanned aerial vehicle anti-falling structure for photogrammetry

Abstract

The utility model provides an unmanned aerial vehicle anti-drop structure for photogrammetry, a stabilizing structure is arranged at the bottom of each undercarriage, the unmanned aerial vehicle anti-drop structure relates to the technical field of unmanned aerial vehicles, a plurality of buffer assemblies are arranged at the bottoms of the undercarriages, the buffer assemblies are directly contacted with the ground, and by increasing contact points of the undercarriages and the ground, the stability of the unmanned aerial vehicle anti-drop structure is improved. The stability of the unmanned aerial vehicle on complex terrains is effectively improved, the buffer strength can be automatically adjusted according to different ground conditions through a special spring mechanism in the buffer assembly, stable take-off and landing of the unmanned aerial vehicle in various environments are ensured, more importantly, when the unmanned aerial vehicle takes off and lands, the extension assembly can make the two supporting plates move outwards, and the stability of the unmanned aerial vehicle in the complex terrains is improved. After the supporting plates move towards the outer side, the distance between the buffering assemblies is increased, the supporting area is correspondingly increased, the stability of the unmanned aerial vehicle during landing is improved by increasing the supporting length, and it is ensured that the unmanned aerial vehicle can stably land under various ground conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially is related to a photography survey unmanned plane anti -drop structure. BACKGROUND

[0002] Unmanned plane is a kind of not carrying the plane of using radio remote control equipment and self-provided program control device manipulation, with the progress of life, the application of unmanned plane gradually universal, at present unmanned plane is mainly used in aerial photography, agriculture, surveying and mapping, video shooting etc.

[0003] The civil aspect of unmanned plane is the real demand of unmanned plane, at present in aerial photography, agriculture, plant protection, miniature self-photography, express delivery, disaster rescue, observing wild animals, monitoring infectious diseases, surveying and mapping, news reporting, power patrol, disaster relief, video shooting, manufacturing romance etc. The application of field greatly expands the purpose of unmanned plane itself, although its function is more and more various, but when unmanned plane lands, its stability is very important, the existing unmanned plane generally supports the impact force generated when the whole unmanned plane lands by the undercarriage, when unmanned plane lands on uneven ground, the undercarriage for supporting can not be in full contact with the ground due to the foreign matter on the ground, so that unmanned plane is caused to roll over in the process of landing, so as to cause unmanned plane to be damaged. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a photography survey unmanned plane anti -drop structure, which

[0005] The utility model provides a photography survey unmanned plane anti -drop structure, the unmanned plane includes body and two undercarriages, two the undercarriages are fixedly arranged at the bottom of body, and it is characterized by, the bottom of each undercarriage is provided with stabilizing structure, the stabilizing structure includes extension assembly and a plurality of buffer assemblies, the extension assembly is fixedly arranged at the bottom of undercarriage, and a plurality of buffer assemblies are connected with extension assembly.

[0006] Preferably, the extension assembly includes a support box, a bidirectional screw rod, two slide rails, two sliding blocks, two support plates and a driving unit, the support box is fixedly arranged at the bottom of the undercarriage, and two openings are formed in the bottom of the support box, the two ends of the bidirectional screw rod are rotatably connected with the left and right sides of the support box, the two slide rails are fixedly arranged at the top of the support box, the two sliding blocks are connected with the opposite threads of the bidirectional screw rod, and the two sliding blocks are slidably connected with the two slide rails, the two sliding blocks are movably penetrated into the two openings, the top of the two support plates is fixedly connected with the bottom of the two sliding blocks, and the driving unit is arranged on the support box and connected with the bidirectional screw rod.

[0007] Preferably, the driving unit comprises a motor, a first bevel gear and a second bevel gear, the motor is fixedly arranged on the top of the support box, and the driving end of the motor is rotatably connected to the top of the support box, the first bevel gear is fixedly arranged on the driving end of the motor, and the second bevel gear is fixedly arranged on the bidirectional screw rod and engaged with the second bevel gear.

[0008] Preferably, the stabilizing structure further comprises a mounting assembly for connecting the buffer assembly, the mounting assembly is arranged on the bottom of the support plate, and the buffer assembly is connected to the support plate through the mounting assembly.

[0009] Preferably, the mounting assembly comprises a connecting seat and a bolt, the connecting seat is fixedly arranged on the bottom of the support plate, and the bottom of the connecting seat is provided with a mounting groove, and the buffer assembly is connected to the connecting seat through the bolt.

[0010] Preferably, the buffer assembly comprises a fixed cylinder, a socket, a spring, a moving block, a connecting rod and a buffer seat, the socket is movably arranged in the mounting groove of the connecting seat, and the left and right sides of the socket are provided with threaded grooves, the bolt is movably penetrated through one side of the connecting seat and threadedly connected to the threaded grooves of the socket, the fixed cylinder is fixedly arranged on the bottom of the socket, the bottom of the fixed cylinder is provided with an opening, the spring is arranged in the fixed cylinder and fixedly connected to the top of the fixed cylinder, the top of the moving block is fixedly connected to the bottom end of the spring, and the moving plate is slidably connected to the inside of the fixed cylinder, one end of the connecting rod is fixedly connected to the bottom of the moving plate, and the buffer seat is fixedly arranged on the other end of the connecting rod.

[0011] Preferably, a fixed seat is fixedly arranged in the support box, and the fixed seat is rotatably connected to the bidirectional screw rod.

[0012] Preferably, the driving unit further comprises a protection cylinder, the protection cylinder is fixedly arranged on the top of the support box, and the motor is arranged in the protection cylinder.

[0013] Preferably, the bidirectional screw rod is connected to the left and right sides of the support box and the fixed seat through bearings.

[0014] The utility model discloses an unmanned aerial vehicle anti -fall structure for photogrammetry, compared with prior art, has the following improvement and advantage: the utility model discloses a plurality of buffer assemblies are arranged at the bottom of the landing gear, and the buffer assembly is directly contacted with the ground, and the contact point of the landing gear and the ground is increased, the stability of the unmanned aerial vehicle on the complex terrain is effectively improved, and the special spring mechanism in the buffer assembly can automatically adjust the buffering degree according to different ground conditions, ensures the smooth take -off and landing of unmanned aerial vehicle under various environments, greatly reduces the potential damage risk caused by ground impact, more importantly, when the unmanned aerial vehicle takes off, the extension assembly can make two support plates move to the outside, when the support plate moves to the outside, the distance between the buffer assemblies is increased, and the support area is correspondingly lengthened, this design improves the stability of the unmanned aerial vehicle during landing by increasing the length of the support, ensures that the unmanned aerial vehicle can land stably under various ground conditions, avoids the unmanned aerial vehicle to overturn and causes damage, and when flying, the support plate of the extension assembly can be completely retracted, and the flight and carrying of the unmanned aerial vehicle are not affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0016] Figure 1 It is the shaft fixing structure schematic diagram of the stable structure of the utility model in the unfolded state;

[0017] Figure 2 It is the side view structure schematic diagram of the utility model;

[0018] Figure 3 It is the side view sectional structure schematic diagram of the extension structure of the utility model;

[0019] Figure 4 It is Figure 3 The A position enlarged structure schematic diagram of

[0020] Figure 5 It is the structure schematic diagram of the buffer assembly of the utility model.

[0021] Mark explanation of drawing:

[0022] 1 unmanned aerial vehicle; 11 body; 12 landing gear; 2 extension assembly; 21 support box; 22 bidirectional screw rod; 23 slide rail; 24 sliding block; 25 support plate; 26 drive unit; 26-1 motor; 26-2 first bevel gear; 26-3 second bevel gear; 26-4 protection cylinder; 3 mounting assembly; 31 connecting seat; 32 bolt; 4 buffer assembly; 41 fixed cylinder; 42 socket; 43 spring; 44 moving block; 45 connecting rod; 46 buffer seat; 5 fixing seat. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be understood that the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-5The utility model provides technical scheme: a photography survey unmanned aerial vehicle anti -drop structure, unmanned aerial vehicle 1 includes machine body 11 and two landing gear 12, two landing gear 12 fixedly arranged in the bottom of machine body 11, its characterized in that, the bottom of each landing gear 12 is provided with stabilizing structure, and stabilizing structure includes extension assembly 2 and a plurality of buffer assembly 4, extension assembly 2 is fixedly arranged in the bottom of landing gear 12, extension assembly 2 can stretch to the outside when unmanned aerial vehicle 1 takes off, thereby increasing the support length, improve the stability of unmanned aerial vehicle 1 when taking off, avoid the rollover, a plurality of buffer assembly 4 is connected with extension assembly 2, a plurality of buffer assembly 4 increases the support point of ground contact, adapts to different topography, improves stability, can also absorb and disperse the impact force from the ground when unmanned aerial vehicle 1 lands, adapts to different topography, protects unmanned aerial vehicle 1 from the damage caused by hard landing.

[0027] Specifically, extension assembly 2 includes support box 21, two-way screw rod 22, two slide rails 23, two sliding blocks 24, two support plates 25 and drive unit 26, support box 21 is fixedly arranged in the bottom of landing gear 12, and the bottom of support box 21 is provided with two openings, both ends of two-way screw rod 22 are rotatably connected with the left and right sides of support box 21, two slide rails 23 are fixedly arranged in the top of support box 21, two sliding blocks 24 are connected with the reverse threads of two-way screw rod 22 respectively, and two sliding blocks 24 are slidably connected with two slide rails 23 respectively, two sliding blocks 24 are movably penetrated in two openings respectively, the top of two support plates 25 is fixedly connected with the bottom of two sliding blocks 24 respectively, drive unit 26 is arranged on support box 21, and drive unit 26 is connected with two-way screw rod 22, drive unit 26 can drive two-way screw rod 22 to rotate, due to the limiting effect of slide rail 23, two sliding blocks 24 can drive two support plates 25 to move linearly towards or away from each other in two openings, thereby increasing the distance between two support plates 25 and improving the stability of support.

[0028] Specifically, drive unit 26 includes motor 26-1, first bevel gear 26-2 and second bevel gear 26-3, motor 26-1 is fixedly arranged on the top of support box 21, and the driving end of motor 26-1 is rotatably connected with the top of support box 21, first bevel gear 26-2 is fixedly arranged on the driving end of motor 26-1, second bevel gear 26-3 is fixedly arranged on two-way screw rod 22, and second bevel gear 26-3 is engaged with second bevel gear 26-3, motor 26-1 transmits rotary power to two-way screw rod 22 through first bevel gear 26-2 and second bevel gear 26-3.

[0029] Specifically, stabilizing structure further includes mounting assembly 3 for connecting buffer assembly 4, mounting assembly 3 is arranged on the bottom of support plate 25, and buffer assembly 4 is connected with support plate 25 through mounting assembly 3.

[0030] Specifically, the mounting assembly 3 comprises a connecting seat 31 and a bolt 32, the connecting seat 31 is fixedly arranged at the bottom of the support plate 25, and the bottom of the connecting seat 31 is provided with a mounting groove for positioning the buffer assembly 4, and the buffer assembly 4 is connected with the connecting seat 31 through the bolt 32.

[0031] Specifically, the buffer assembly 4 comprises a fixing cylinder 41, a socket 42, a spring 43, a moving block 44, a connecting rod 45 and a buffer seat 46, the socket 42 is movably arranged in the mounting groove of the connecting seat 31, and the left and right sides of the socket 42 are provided with threaded grooves, the bolt 32 movably penetrates one side of the connecting seat 31, and the bolt 32 is threadedly connected with the threaded grooves of the socket 42, the fixing cylinder 41 is fixedly arranged at the bottom of the socket 42, the bottom of the fixing cylinder 41 is provided with an opening, the spring 43 is located in the fixing cylinder 41, and the top end of the spring 43 is fixedly connected with the top inside of the fixing cylinder 41, the top of the moving block 44 is fixedly connected with the bottom end of the spring 43, and the moving plate is slidably connected with the inside of the fixing cylinder 41, one end of the connecting rod 45 is fixedly connected with the bottom of the moving plate, and the buffer seat 46 is fixedly arranged at the other end of the connecting rod 45.

[0032] Specifically, the support box 21 is fixedly provided with a fixing seat 5, and the fixing seat 5 is rotatably connected with the bidirectional screw rod 22, and the fixing seat 5 is used for assisting in supporting the bidirectional screw rod 22.

[0033] Specifically, the driving unit 26 further comprises a protection cylinder 26-4, the protection cylinder 26-4 is fixedly arranged at the top of the support box 21, and the motor 26-1 is located in the protection cylinder 26-4, and the protection cylinder 26-4 can protect the motor 26-1 from being damaged.

[0034] Specifically, the bidirectional screw rod 22 is connected with the left and right sides of the support box 21 and the fixing seat 5 through bearings, and the bearing connection improves the stability of the bidirectional screw rod 22 during rotation.

[0035] Working principle: during the take-off and landing of the unmanned aerial vehicle 1, the core part of the extension assembly 2, i.e. the motor 26-1, is activated to start the entire extension assembly, the motor 26-1 transmits the rotating power to the bidirectional screw rod 22 through the precise meshing of the first bevel gear 26-2 and the second bevel gear 26-3, the bidirectional screw rod 22 rotates, the restriction of the slide rail 23 ensures that the sliding block 24 can only move along a straight line, thereby driving the support plate 25 fixed to the bottom of the sliding block 24 to expand outward, not only increasing the distance between the two support plates 25, but also expanding the distance between the buffer assemblies 4, thereby significantly increasing the support length during the take-off and landing of the unmanned aerial vehicle 1, greatly improving the stability of the landing gear 12, and effectively preventing the risk of rollover of the unmanned aerial vehicle 1 on complex or uneven ground.

[0036] When the UAV 1 lands, the impact force of the ground feedback is transmitted to the buffer assembly 4, and the buffer seat 46 in the buffer assembly 4 slides up and down inside the fixed cylinder 41 when subjected to pressure, which makes the spring 43 inside compressed, and the compression of the spring 43 not only can absorb and disperse the impact force from the ground, reduce the direct impact on the UAV 1, but also can provide appropriate buffering effect according to different ground conditions, to ensure the safe landing of the UAV 1 in various environments.

[0037] In addition, the design of the buffer assembly 4 takes into account the convenience of maintenance, when the elasticity of the spring 43 needs to be replaced, only need to disassemble the bolt 32, take out the old buffer assembly 4, then insert the socket 42 of the new buffer assembly 4 into the connecting seat 31, and re-fix it through the bolt 32, the whole process is simple and fast, without complex tools.

[0038] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A photogrammetric drone anti-falling structure, said drone (1) comprising a body (11) and two landing gears (12) fixedly arranged at the bottom of the body (11), characterized in that, The bottom of each landing gear (12) is provided with a stabilizing structure, which comprises an extension assembly (2) fixedly arranged at the bottom of the landing gear (12) and a plurality of buffer assemblies (4) connected with the extension assembly (2).

2. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 1, characterized in that, The extension assembly (2) comprises a support box (21), a bidirectional screw (22), two slide rails (23), two slide blocks (24), two support plates (25) and a driving unit (26). The support box (21) is fixedly arranged at the bottom of the landing gear (12), and two openings are formed in the bottom of the support box (21). The two ends of the bidirectional screw (22) are rotatably connected with the left and right sides of the support box (21). The two slide rails (23) are fixedly arranged at the top of the support box (21). The two slide blocks (24) are connected with the reverse threads of the bidirectional screw (22), and the two slide blocks (24) are slidably connected with the two slide rails (23). The two slide blocks (24) are movably penetrated through the two openings. The top of each support plate (25) is fixedly connected with the bottom of each slide block (24). The driving unit (26) is arranged on the support box (21) and connected with the bidirectional screw (22).

3. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 2, characterized in that, The driving unit (26) comprises a motor (26-1), a first bevel gear (26-2) and a second bevel gear (26-3). The motor (26-1) is fixedly arranged at the top of the support box (21), and the driving end of the motor (26-1) is rotatably connected with the top of the support box (21). The first bevel gear (26-2) is fixedly arranged at the driving end of the motor (26-1). The second bevel gear (26-3) is fixedly arranged on the bidirectional screw (22) and engaged with the first bevel gear (26-2).

4. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 2, characterized in that, The stabilizing structure further comprises a mounting assembly (3) for connecting the buffer assemblies (4). The mounting assembly (3) is arranged at the bottom of the support plate (25), and the buffer assemblies (4) are connected with the support plate (25) through the mounting assembly (3).

5. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 4, characterized in that, The mounting assembly (3) comprises a connecting seat (31) and a bolt (32). The connecting seat (31) is fixedly arranged at the bottom of the support plate (25), and a mounting groove is formed in the bottom of the connecting seat (31). The buffer assemblies (4) are connected with the connecting seat (31) through the bolt (32).

6. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 5, characterized in that, The buffer assembly (4) comprises a fixing cylinder (41), a socket (42), a spring (43), a moving block (44), a connecting rod (45) and a buffer seat (46), the socket (42) is movably arranged in the mounting groove of the connecting seat (31), and the left and right sides of the socket (42) are both provided with threaded grooves, the bolt (32) is movably penetrated through one side of the connecting seat (31), and the bolt (32) is threadedly connected with the threaded grooves of the socket (42), the fixing cylinder (41) is fixedly arranged at the bottom of the socket (42), the bottom of the fixing cylinder (41) is provided with an opening, the spring (43) is located in the fixing cylinder (41), and the top end of the spring (43) is fixedly connected with the top of the fixing cylinder (41), the top of the moving block (44) is fixedly connected with the bottom end of the spring (43), and the moving plate is slidably connected with the inside of the fixing cylinder (41), one end of the connecting rod (45) is fixedly connected with the bottom of the moving plate, and the buffer seat (46) is fixedly arranged at the other end of the connecting rod (45).

7. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 2, characterized in that, The supporting box (21) is fixedly provided with a fixing seat (5), and the fixing seat (5) is rotationally connected with the bidirectional screw rod (22).

8. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 3, characterized in that, The driving unit (26) further comprises a protection cylinder (26-4), and the protection cylinder (26-4) is fixedly arranged at the top of the supporting box (21), and the motor (26-1) is located in the protection cylinder (26-4).

9. The anti-drop structure for photogrammetry unmanned aerial vehicle according to claim 7, wherein, The bidirectional screw rod (22) is connected with the left and right sides of the supporting box (21) and the fixing seat (5) through bearings.

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