阅读说明：本技术 便于折叠收纳机翼的多旋翼无人机 (Many rotor unmanned aerial vehicle convenient to folding wing of accomodating ) 是由 李成 于 2020-12-02 设计创作，主要内容包括：本发明公开了便于折叠收纳机翼的多旋翼无人机,属于无人机技术领域,其包括机壳,所述机壳背面与防护盒的正面固定连接,所述防护盒内设置有若干个支撑杆,所述支撑杆的一端与驱动结构的表面固定连接,所述驱动结构的驱动轴与旋转仓内壁的上下两表面卡接。该便于折叠收纳机翼的多旋翼无人机,通过设置耐磨槽、旋转仓和驱动轴,直至活动叶片与固定叶片之间相互重叠即可,这种自动折叠叶片的方式在使用时,能够保持叶片的自动展开,保障良好的机动效果,同时不使用时活动叶片与固定叶片之间相互重叠,使其降低空间占用的同时活动叶片与固定叶片重叠使其相互作用下耐弯折等性能直接翻倍,具备更好的防护效果。(The invention discloses a multi-rotor unmanned aerial vehicle convenient for folding and containing wings, which belongs to the technical field of unmanned aerial vehicles and comprises a housing, wherein the back surface of the housing is fixedly connected with the front surface of a protection box, a plurality of support rods are arranged in the protection box, one ends of the support rods are fixedly connected with the surface of a driving structure, and a driving shaft of the driving structure is clamped with the upper surface and the lower surface of the inner wall of a rotary cabin. This many rotor unmanned aerial vehicle convenient to folding wing of accomodating, through setting up wear-resisting groove, rotary bin and drive shaft, until overlap each other between movable blade and the fixed blade can, the mode of this kind of automatic folding blade is when using, can keep the automatic expansion of blade, ensure good flexible effect, overlap each other between movable blade and the fixed blade when not using simultaneously, movable blade overlaps with the fixed blade when making it reduce space occupy and makes its interact under resistant performance such as buckling directly double, possess better protecting effect.)

1. Many rotor unmanned aerial vehicle convenient to folding wing of accomodating, including casing (1), its characterized in that: the back of the machine shell (1) is fixedly connected with the front of the protection box (2), a plurality of support rods (3) are arranged in the protection box (2), one ends of the support rods (3) are fixedly connected with the surface of the driving structure (4), a driving shaft (14) of the driving structure (4) is clamped with the upper surface and the lower surface of the inner wall of the rotating bin (5), two first slide ways (15) are arranged on the inner wall of the rotating bin (5), movable blades (7) are connected in the first slide ways (15) in a sliding mode, wear-resisting blocks (10) are arranged at the opposite ends of the two movable blades (7), centrifugal springs (9) are sleeved on the surfaces of the movable blades (7), one ends of the movable blades (7) are fixedly connected with the right side face of the inner wall of the groove (11), and the groove (11) is formed in the left side face of the wear-resisting blocks (10);

wear-resisting piece (10) sliding connection sets up on the surface of same solid fixed ring (13) in wear-resisting groove (12) that corresponds, two gliding wear-resisting grooves (12) of wear-resisting piece (10), the front fixed connection of the back and rotatory storehouse (5) inner wall of solid fixed ring (13), the relative one end of two bracing pieces (3) that are located the left and right sides and the left and right sides face fixed connection of protection box (2) inner wall, a plurality of second slide (16) have been seted up to the inner wall of protection box (2), sliding connection has corresponding bracing piece (3) in second slide (16), the back and the positive one end fixed connection of two calorie axles (21) of bracing piece (3) one end, two calorie axles (21) sliding connection respectively correspond in arc slide opening (18), arc slide opening (18) are set up in the front of fixed disk (17), and the joint that corresponds two calorie axles (21) that two bracing pieces (3) one end set up is in corresponding calorie hole (20) Four clamping holes (20) which are correspondingly fixed on the two support rods (3) are formed in the front face of the same clamping piece (19), the front faces of the two corresponding clamping pieces (19) are movably connected with the back face of the fixed disc (17) through the same pin shaft, and two supporting blocks (22) are arranged on the surfaces of the two corresponding clamping pieces (19);

the supporting blocks (22) are connected in the sliding grooves (23) in a sliding mode, the sliding grooves (23) are formed in the back face of the fixed disc (17), the back faces of the two supporting blocks (22) are fixedly connected with a first connecting plate (27) and a second connecting plate (29) respectively, the left side surface of the first connecting plate (27) is fixedly connected with the right side surface of the fixed plate (28), the front surface of the fixing plate (28) is provided with a buckling groove (31), a fastener (30) is clamped in the buckling groove (31), the left side surface of the fastener (30) is fixedly connected with the right side surface of the second connecting plate (29), the right side surface of the first connecting plate (27) is fixedly connected with the left side surfaces of the two fixed half lugs (32), the inner wall of the fixed half ear (32) is connected with a safety ring (33) in a sliding way, the surface of the safety ring (33) is connected in the corresponding positioning groove (26) in a sliding way, the positioning groove (26) is formed in the left side face of the second connecting plate (29).

2. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the left end of the centrifugal spring (9) is fixedly connected with the right side face of the sliding ring (8), the sliding ring (8) is sleeved on the surface of the movable blade (7), and the right end of the centrifugal spring (9) is fixedly connected with the left side face of the wear-resistant block (10).

3. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the right side of insurance ring (33) inner wall and the right-hand member fixed connection of insurance spring (34), the left end of insurance spring (34) and the left surface fixed connection of fixed half ear (32) inner wall.

4. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the inner wall of the wear-resistant groove (12) is a cambered surface, and the opposite surfaces corresponding to the two support rods (3) are fixedly connected with the two ends of the same reset spring (24).

5. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the surface of the wear-resistant block (10) and the inner wall of the wear-resistant groove (12) are both smooth chromium-plated surfaces, the right end of the buckle is an inclined surface, the left side of the inclined surface is a vertical end surface and is in lap joint with the left side surface of the inner wall of the buckle groove (31), and the inner wall of the buckle groove (31) is larger than the size of the fastener (30).

6. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the sliding track of the arc-shaped sliding hole (18) is in a semi-arc shape, and the back surface of the supporting rod (3) is attached to the front surface of the fixed disk (17).

7. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the safety ring (33) is a tough stainless steel ring, the number of the fixing plate (28) and the number of the clamping pieces (19) are two, and the fixing plate and the clamping pieces are clamped between the corresponding clamping pieces (19) and the clamping grooves.

8. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the number of the arc-shaped sliding grooves (23) formed in the front face of the fixing ring (13) is four, and the corresponding two arc-shaped sliding grooves (23) are in sliding connection with corresponding clamping shafts (21) arranged at one ends of the corresponding two clamping pieces (19).

9. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: one end of the fixed blade (6) is fixedly connected with the surface of the rotating bin (5), and the fixed blade (6) and the movable blade (7) are made of carbon fiber materials.

10. A multi-rotor drone convenient to fold and stow wings according to claim 1, characterized in that: the upper side and the lower side of the left side surface of the second connecting plate (29) are both inclined surfaces, and the back surface of the fixed disc (17) is fixedly connected with the front surface of the inner wall of the protective box (2) through the same pin shaft arranged on the surfaces of the two clamping pieces (19).

Technical Field

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a multi-rotor unmanned aerial vehicle convenient for folding and containing wings.

Background

Multi-rotor craft is also called multi-shaft craft; it has three or more than three independent power systems to carry on various control actions, different from single rotor, the multi-rotor mechanical structure is simple, only need to coordinate the rotational speed between the electrical machinery can realize the control, the system is highly intelligent, the aircraft attitude keeping ability is higher, it has very wide application field and research value, the multi-rotor unmanned aerial vehicle, also can be called multiaxis unmanned aerial vehicle, according to the number of propellers, can be subdivided into four rotors, six rotors, eight rotors, etc., generally speaking, the more the number of propellers, the more steady the flight, the easier the operation, the multi-rotor unmanned aerial vehicle has the advantages of vertical take-off and landing, can hover, low requirement to the place, etc., it is favored by the masses, the organism each part adopts the modular design of platformization, standardization, has strengthened ease of use and maintainability, can fast change the payload in order to meet the demand of different applications, and can effectively shorten the fault repair time, eight oar power structural design of high-efficient redundant four-axis and flight attitude intelligent protection system's perfect adaptation have made the high stability and the reliability of many rotors, when one or two motors or paddle break down, flight attitude intelligent protection system can be in time adjusted the fuselage gesture, keep unmanned aerial vehicle's stable flight, its distinctive advantage of many rotor unmanned aerial vehicle causes it to have extensive popularization and application in each field, its helical blade of present most many rotor unmanned aerial vehicle is great when using, there is very big inconvenience in carrying and outdoor use, the blade of most of present this kind of unmanned aerial vehicle can not carry out the folding of certain degree simultaneously, it appears in the condition of damage easily appearing under the pressurized condition.

Disclosure of Invention

Technical problem to be solved

In order to overcome the defects of the prior art, the invention provides a multi-rotor unmanned aerial vehicle convenient for folding and containing wings, and solves the problems that helical blades of most existing multi-rotor unmanned aerial vehicles occupy larger space when in use, great inconvenience exists in carrying and outdoor use, and meanwhile, most existing blades of the unmanned aerial vehicles cannot be folded to a certain degree and are easy to damage under the condition of pressure.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: many rotor unmanned aerial vehicle convenient to folding wing of accomodating, which comprises a housing, the casing back and the positive fixed connection of protection box, be provided with a plurality of bracing piece in the protection box, the one end of bracing piece and the fixed surface of drive structure are connected, the drive shaft of drive structure and the upper and lower two surface joint of rotatory storehouse inner wall, two first slides have been seted up to the inner wall in rotatory storehouse, equal sliding connection has movable blade in the first slide, and two relative one ends of movable blade all are provided with wear-resisting piece, centrifugal spring has been cup jointed on movable blade's surface, movable blade's one end and recess inner wall's right flank fixed connection, the recess is seted up at wear-resisting piece's left surface.

The wear-resistant blocks are slidably connected in the corresponding wear-resistant grooves, the two wear-resistant grooves in which the two wear-resistant blocks slide are formed in the surface of the same fixing ring, the back surface of the fixing ring is fixedly connected with the front surface of the inner wall of the rotary bin, the opposite ends of the two support rods positioned on the left side and the right side are fixedly connected with the left side surface and the right side surface of the inner wall of the protection box, the inner wall of the protection box is provided with a plurality of second slide ways, the second slide ways are slidably connected with corresponding support rods, the back surface of one end of each support rod is fixedly connected with the front surfaces of the two clamping shafts, the two clamping shafts are respectively and slidably connected in the corresponding arc-shaped slide holes, the arc-shaped slide holes are formed in the front surface of the fixing disc, the two clamping shafts arranged at one ends of the corresponding to the two support rods are clamped in the corresponding clamping, two supporting blocks are arranged on the surfaces corresponding to the two clamping pieces.

Bracer sliding connection is in the spout, the back at the fixed disk is seted up to the spout, the back difference first connecting plate of fixedly connected with and the second connecting plate of two bracers, the left surface of first connecting plate and the right flank fixed connection of fixed plate, the catching groove has been seted up in the front of fixed plate, the joint has the fastener in the catching groove, the left surface of fastener and the right flank fixed connection of second connecting plate, the right flank of first connecting plate and two fixed half ear left surface fixed connection, the inner wall sliding connection of fixed half ear has the insurance ring, the sliding surface connection of insurance ring is in corresponding the constant head tank, the left surface at the second connecting plate is seted up to the constant head tank.

As a further scheme of the invention: the left end of the centrifugal spring is fixedly connected with the right side face of the sliding ring, the sliding ring is sleeved on the surface of the movable blade, and the right end of the centrifugal spring is fixedly connected with the left side face of the wear-resistant block.

As a further scheme of the invention: the right side of the inner wall of the safety ring is fixedly connected with the right end of the safety spring, and the left end of the safety spring is fixedly connected with the left side of the inner wall of the fixed half lug.

As a further scheme of the invention: the inner wall of the wear-resistant groove is a cambered surface, and the opposite surfaces corresponding to the two support rods are fixedly connected with the two ends of the same reset spring.

As a further scheme of the invention: the surface of the wear-resistant block and the inner wall of the wear-resistant groove are both smooth chromium-plated surfaces, the right end of the buckle is an inclined surface, the left side of the inclined surface is a vertical end surface and is in lap joint with the left side surface of the inner wall of the catching groove, and the inner wall of the catching groove is larger than the size of the fastener.

As a further scheme of the invention: the sliding track of the arc-shaped sliding hole is semi-arc-shaped, and the back surface of the supporting rod is attached to the front surface of the fixed disc.

As a further scheme of the invention: the safety ring is a tough stainless steel ring, and the number of the fixing plates and the number of the clamping pieces are two and are clamped between the corresponding clamping pieces and the clamping grooves.

As a further scheme of the invention: the fixed ring is provided with four arc-shaped chutes in the front, and the two corresponding arc-shaped chutes are in sliding connection with corresponding clamping shafts arranged at one ends of the two corresponding clamping pieces.

As a further scheme of the invention: one end of the fixed blade is fixedly connected with the surface of the rotating bin, and the fixed blade and the movable blade are made of carbon fiber materials.

As a further scheme of the invention: the upper side and the lower side of the left side surface of the second connecting plate are both inclined surfaces, and the back surface of the fixed disk is fixedly connected with the front surface of the inner wall of the protective box through the same pin shaft arranged on the surfaces of the two clamping pieces.

(III) advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

1. the multi-rotor unmanned aerial vehicle convenient for folding and containing wings comprises wear-resistant grooves, a sliding ring, a wear-resistant block, a centrifugal spring, movable blades, fixed blades, a rotating bin and a driving shaft, wherein the driving shaft drives the rotating bin to rotate at a high speed under the action of a driving structure when in use, then the rotating bin drives the fixed blades on the surface to synchronously rotate at a high speed under the action of high-speed rotation, meanwhile, the rotating speed of the movable blades is gradually increased along with the rotating bin, so that the movable blades start to pull the wear-resistant block to press the centrifugal spring to shrink, then the movable blades slide in a first slideway under the action of the sliding ring under the high-speed rotation of the rotating bin, until the rotating speed of the rotating bin reaches a set rotating speed after reaching a certain position, the fixed blades and the movable blades are distributed in a cross shape, then, when the use is finished, the rotating speed of the rotating bin is gradually reduced along with, make it reset under the effect of wear-resisting piece and centrifugal spring, centrifugal spring pushes up wear-resisting inslot wall that corresponds with wear-resisting piece, make it slide in first slide and reset under the radian effect of wear-resisting inslot wall two movable vane, until between movable vane and the fixed blade overlap each other can, this kind of automatic folding blade's mode is when using, can keep the automation of blade to expand, ensure good mobile effect, overlap each other between movable vane and the fixed blade when not using simultaneously, movable vane overlaps with the fixed blade when making it reduce space and occupy and makes its interact resist under the bending grade performance directly double, possess better protecting effect.

2. The multi-rotor unmanned aerial vehicle convenient for folding and containing wings comprises a fixed disc, an arc-shaped sliding hole, a clamping shaft, a clamping hole, clamping pieces, a supporting rod protection box, a reset spring, a supporting block, a first connecting plate and a fixed plate, wherein when the multi-rotor unmanned aerial vehicle is used, the first connecting plate and the second connecting plate are pressed to be close to each other, then the first connecting plate and the second connecting plate drive the two supporting blocks to press an included angle of the two clamping pieces respectively, so that the rest two included angles of the two clamping pieces press the reset spring, meanwhile, the two clamping pieces respectively drive the corresponding four supporting rods to respectively slide in corresponding second slide ways, when the multi-rotor unmanned aerial vehicle reaches a proper position, the clamping pieces are buckled with buckling grooves, so that the multi-rotor unmanned aerial vehicle can be kept fixed, the constant positions of the supporting rods are kept, then when the use is finished, the clamping pieces are elastically deformed and are separated from the buckling grooves by pressing the clamping pieces, and, two bracing pieces that make its correspond from top to bottom move towards the bracing piece that corresponds leftmost or rightmost side can, this kind of mode that can fold, very big reduction the waste in space possesses fine protection effect simultaneously, need open the in-process of bracing piece when using and directly pinch first connecting plate and second connecting plate, it is fixed with the catching groove until the fastener, convenience simple to use.

3. This many rotor unmanned aerial vehicle convenient to wing is accomodate in folding, through setting up fixed half ear, the safety ring, insurance spring and constant head tank, when using, after inseparable joint between fastener and catching groove, move the safety ring through the pressure, make its safety ring slide at the inner wall of fixed half ear, press the safety spring of moving fixed half ear inner wall simultaneously, after then with the safety ring cover in the constant head tank that corresponds can, the safety ring is moved to the safety spring pressure afterwards, make its safety ring inseparable knot can in the constant head tank, this kind of mode ensures the bracing piece can not appear fastener and catching groove slippage in the motion process in long-time use, make it more stable at the in-process that uses, the security is higher.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a rear view of the protective case of the present invention;

FIG. 4 is a schematic rear view of the protective case of the present invention;

FIG. 5 is a schematic cross-sectional view of a rotary bin according to the present invention;

FIG. 6 is an enlarged schematic view of the structure of the present invention at A;

FIG. 7 is an enlarged view of the structure of the present invention at B;

FIG. 8 is a schematic view of the rear view of the fixed half-ear according to the present invention;

in the figure: 1 machine shell, 2 protective boxes, 3 support rods, 4 driving structures, 5 rotating bins, 6 fixed blades, 7 movable blades, 8 sliding rings, 9 centrifugal springs, 10 wear-resistant blocks, 11 grooves, 12 wear-resistant grooves, 13 fixed rings, 14 driving shafts, 15 first sliding ways, 16 second sliding ways, 17 fixed discs, 18 arc-shaped sliding holes, 19 clamping pieces, 20 clamping holes, 21 clamping shafts, 22 supporting blocks, 23 sliding grooves, 24 reset springs, 25 guide holes, 26 positioning grooves, 27 first connecting plates, 28 fixed plates, 29 second connecting plates, 30 fasteners, 31 fastening grooves, 32 fixed half lugs, 33 safety rings and 34 safety springs.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 8, the present invention provides a technical solution: many rotor unmanned aerial vehicle convenient to folding wing of accomodating, which comprises a housing 1, the 1 back of casing and protection box 2's positive fixed connection, be provided with a plurality of bracing piece 3 in the protection box 2, the one end of bracing piece 3 and drive structure 4's fixed surface are connected, drive structure 4's drive shaft 14 and the upper and lower two surface joint of 5 inner walls in rotatory storehouse, two first slides 15 have been seted up to the inner wall in rotatory storehouse 5, equal sliding connection has movable blade 7 in first slide 15, two movable blade 7 relative one ends all are provided with wear-resisting piece 10, centrifugal spring 9 has been cup jointed on movable blade 7's surface, movable blade 7's one end and the right flank fixed connection of recess 11 inner wall, recess 11 is seted up at wear-resisting piece 10's left surface.

The wear-resistant blocks 10 are connected in corresponding wear-resistant grooves 12 in a sliding manner, the two wear-resistant grooves 12 in which the two wear-resistant blocks 10 slide are formed in the surface of the same fixing ring 13, the back surface of the fixing ring 13 is fixedly connected with the front surface of the inner wall of the rotary bin 5, the opposite ends of the two support rods 3 positioned on the left side and the right side are fixedly connected with the left side surface and the right side surface of the inner wall of the protection box 2, the inner wall of the protection box 2 is provided with a plurality of second slideways 16, the second slideways 16 are connected with corresponding support rods 3 in a sliding manner, the back surface of one end of each support rod 3 is fixedly connected with the front ends of the two clamping shafts 21, the two clamping shafts 21 are respectively connected in corresponding arc-shaped sliding holes 18 in a sliding manner, the arc-shaped sliding holes 18 are formed in the front surface of the fixing disc 17, the two clamping, the front surfaces corresponding to the two clamping pieces 19 are movably connected with the back surface of the fixed disc 17 through the same pin shaft, and the surfaces corresponding to the two clamping pieces 19 are provided with two supporting blocks 22.

Bracer 22 sliding connection is in spout 23, spout 23 sets up the back at fixed disk 17, the first connecting plate 27 of fixedly connected with and second connecting plate 29 are respectively distinguished to the back of two bracers 22, the left surface of first connecting plate 27 and the right flank fixed connection of fixed plate 28, catching groove 31 has been seted up in the front of fixed plate 28, the joint has fastener 30 in the catching groove 31, fastener 30's the left surface and the right flank fixed connection of second connecting plate 29, the right surface and two fixed half ear 32 left surface fixed connection of first connecting plate 27, the inner wall sliding connection of fixed half ear 32 has safety ring 33, the sliding surface of safety ring 33 is connected in corresponding constant head tank 26, constant head tank 26 sets up the left surface at second connecting plate 29.

Specifically, as shown in fig. 1, 2, 3 and 4, the sliding track of the arc-shaped sliding hole 18 is semi-arc-shaped, the back of the supporting rod 3 is attached to the front of the fixed disk 17, the number of the arc-shaped sliding grooves 23 formed in the front of the fixed ring 13 is four, the two corresponding arc-shaped sliding grooves 23 are slidably connected with the corresponding clamping shafts 21 arranged at one ends of the two clamping pieces 19, one ends of the fixed blades 6 are fixedly connected with the surface of the rotating bin 5, the fixed blades 6 and the movable blades 7 are made of carbon fiber, the arc-shaped sliding holes 18 can keep stable limit of the clamping shafts 21 when in use by arranging the arc-shaped sliding holes 18, so that the clamping pieces 19 can keep stable and fixed on the clamping shafts 21 when in use, so that the supporting rod 3 is more stable in the movement process, the supporting rod 3 can keep stable supporting and transmission effects on the driving structure 4 when in use, and the clamping pieces 19 can keep stable and, through setting up fixed blade 6, fixed blade 6 can remain stable rotational speed when using, and movable blade 7 and rotating vane are carbon fiber material simultaneously, make its material lighter, and the resistance to compression effect is better.

Specifically, as shown in fig. 5, 6, 7 and 8, the left end of the centrifugal spring 9 is fixedly connected with the right side surface of the sliding ring 8, the sliding ring 8 is sleeved on the surface of the movable blade 7, the right end of the centrifugal spring 9 is fixedly connected with the left side surface of the wear-resistant block 10, the inner wall of the wear-resistant groove 12 is an arc surface, the opposite surfaces corresponding to the two support rods 3 are fixedly connected with the two ends of the same reset spring 24, the surface of the wear-resistant block 10 and the inner wall of the wear-resistant groove 12 are both smooth chrome-plated surfaces, the right end of the buckle is an inclined surface, the left side of the inclined surface is a vertical end surface and is overlapped with the left side surface of the inner wall of the buckle groove 31, the inner wall of the buckle groove 31 is larger than the size of the fastener 30, the right side surface of the inner wall of the safety ring 33 is fixedly connected with the right end of the safety spring 34, the left end of the safety spring 34 is fixedly connected with the left, the upper side and the lower side of the left side of the second connecting plate 29 are both inclined planes, the back of the fixed disk 17 is fixedly connected with the front of the inner wall of the protective box 2 through the same pin shaft arranged on the surfaces of the two clamping pieces 19, the centrifugal spring 9 can keep stable reset under the action of the centrifugal force of the movable blade 7 by arranging the centrifugal spring 9, so that the wear-resistant block 10 is tightly pressed in the wear-resistant groove 12, the slide ring 8 can play a good positioning effect on the movable blade 7 by arranging the slide ring 8, and simultaneously play a good supporting effect under the coordination with the centrifugal spring 9, the inner walls of the wear-resistant block 10 and the wear-resistant groove 12 are both plated with chrome by arranging the wear-resistant block 10, so that the wear-resistant performance is greatly improved, the inner wall of the wear-resistant groove 12 is in a cambered surface by arranging the wear-resistant groove 12, so that the wear-resistant block 10 can play a good guiding motion effect on the wear-, through setting up catching groove 31, catching groove 31's inner wall can with buckle 30 between the cooperation remain stable fixed, through setting up second connecting plate 29, the upper and lower two surfaces of second connecting plate 29 are the inclined plane, make its safety ring 33 more convenient when fixed, guarantee safety ring 33 gets into more stably in the constant head tank 26, through setting up fixed disk 17, fixed disk 17 plays the effect of fine support and direction.

The working principle of the invention is as follows:

s1, when the staff uses, firstly, the forefinger and the thumb pinch the far side of the first connecting plate 27 and the second connecting plate 29 to enable the first connecting plate 27 and the second connecting plate 29 to approach each other, the first connecting plate 27 and the second connecting plate 29 respectively drive the supporting blocks 22 to slide in the corresponding sliding grooves 23 while approaching each other, the supporting blocks 22 press the included angle of one side of the two corresponding clamping pieces 19 while sliding, and the two clamping pieces 19 start to rotate by the same pin shaft under the action of the two supporting blocks 22;

s2, the support rod 3 is driven to slide in the corresponding arc-shaped sliding hole 18 through the clamping shaft 21, the support rod 3 is driven to slide in the corresponding second slide way 16 through the clamping shaft 21, the angle of the support rod 3 is changed, and the return spring 24 is pressed at the same time until the fastener 30 is matched with the fastening groove 31 to keep the fastener fixed, so that a plurality of driving structures 4 keep proper driving distances, and then the safety ring 33 is pulled to press the safety spring 34 on the inner wall until the safety ring 33 is clamped in the positioning groove 26 and then keeps tight fixation under the action of the safety spring 34;

s3, when in use, the driving structure 4 drives the rotating cabin 5 to rotate at high speed through the driving shaft 14 along with the start of the driving structure 4, the fixed blades 6 keep synchronous operation while the rotating cabin 5 rotates at high speed, simultaneously the movable blades 7 gradually increase along with the rotating speed of the rotating cabin 5, so that the driving structure starts to pull the wear-resistant blocks 10 to press the centrifugal springs 9 to shrink, then the movable blades 7 slide in the first slide ways 15 under the action of the slide rings 8 under the high-speed rotation of the rotating cabin 5 until the rotating speed of the rotating cabin 5 reaches a set rotating speed after a certain position, so that the fixed blades 6 and the movable blades 7 are in cross distribution, then when in use, the rotating speed of the rotating cabin 5 is gradually reduced along with the descending of the unmanned aerial vehicle, the centrifugal force of the movable blades 7 is reduced, so that the movable blades are reset under the action of the wear-resistant blocks 10 and the centrifugal springs 9, the centrifugal springs 9 push the wear-resistant blocks 10 against the inner walls of, under the action of the radian of the inner wall of the wear-resistant groove 12, the two movable blades 7 slide in the first slideway 15 to reset, and the use can be finished.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.