Rotor wing assembly of unmanned aerial vehicle

Abstract

The utility model discloses a rotor wing assembly of unmanned aerial vehicle relates to unmanned aerial vehicle field, including unmanned aerial vehicle body, the side of unmanned aerial vehicle body is equipped with rotor wing frame body, rotor wing frame body includes first connecting rod, the inside of first connecting rod is equipped with cavity, the inside of cavity is fixed limit rod, and the limit rod is equipped with and equipped with second connecting rod. The end, away from the unmanned aerial vehicle body, of the first connecting rod is provided with a protruding base in a protruding mode, the second connecting rod penetrates through the protruding base to stretch out, and a rotating base is fixed to the end, stretching out of the protruding base, of the second connecting rod and provided with paddles. A channel is formed in the bottom of the protruding base, a positioning inserting hole is formed in the channel, and a positioning assembly is installed at the bottom of the second connecting rod. The overall length of the second connecting rod can be effectively adjusted according to different working requirements, the problem that the length of the wings of the unmanned aerial vehicle is fixed and inconvenient to adjust is solved as much as possible, and the unmanned aerial vehicle can be used in different flight environments.

Description

TECHNICAL FIELD

[0001] The utility model discloses the field of unmanned plane, concretely is a rotor assembly of unmanned plane. BACKGROUND

[0002] Wing unmanned plane, as the perfect fusion of modern aviation technology and intelligent technology, with its unique charm and wide application field, is gradually changing our life. This unmanned plane driven by multiple rotors can realize vertical take-off and landing, air hovering and flexible flight attitude adjustment through precise motor control and flight algorithm. Its small and light body design makes the rotor unmanned plane flexible in complex environment and can perform various high-precision tasks. Whether aerial photography, agricultural plant protection, terrain mapping or emergency rescue, logistics transportation, the rotor unmanned plane shows excellent performance and unlimited possibility. The rotor unmanned plane mainly comprises an unmanned plane body and a rotor installed on the side of the unmanned plane body for providing lift.

[0003] The length of the arm of the existing rotor assembly of unmanned plane is mostly fixed, which is inconvenient to adjust, and the arm is mostly inconvenient to disassemble and replace after being damaged. During flight, when the arm is damaged, it is inconvenient to disassemble and repair it, etc. It cannot well meet different working requirements, so a rotor assembly of unmanned plane is needed to assist in solving this problem. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a rotor assembly of unmanned plane to solve the technical problem that the length of the arm of the existing rotor assembly of unmanned plane is mostly fixed, which is inconvenient to adjust, and the arm is mostly inconvenient to disassemble and replace after being damaged. During flight, when the arm is damaged, it is inconvenient to disassemble and repair it, etc. It cannot well meet different working requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rotor assembly of unmanned plane, comprising an unmanned plane body, a rotor holder body is installed on the side of the unmanned plane body, the rotor holder body comprises a first connecting rod, a cavity is formed in the first connecting rod, a limiting rod is fixed in the cavity, a second connecting rod is installed and arranged on the limiting rod, a protruding seat is protrudingly arranged at one end of the first connecting rod away from the unmanned plane body, the second connecting rod extends through the protruding seat, a rotating seat is fixed at one end of the second connecting rod extending out of the protruding seat, and a paddle is installed on the rotating seat.

[0006] A groove is formed in the bottom of the protruding seat, a positioning hole is formed in the groove, a positioning cavity is formed at one end of the second connecting rod away from the rotating seat, a positioning assembly is installed in the positioning cavity, and the positioning assembly and the positioning hole are positioned and fastened in cooperation.

[0007] The utility model further sets up, the positioning assembly includes the winding wheel of rotation embedding installation in the positioning cavity, the connecting band is symmetrically installed on the winding wheel, the both sides of the winding wheel correspond in the protruding seat inside are all set with slide cavity, the slide cavity is slidably arranged with the positioning bolt, the positioning bolt and the positioning hole are matched and positioned between, one side of the positioning bolt is connected with one end of the connecting band and is fixed, the slide cavity is installed with the ejection spring of auxiliary positioning bolt promotion.

[0008] The utility model further sets up, the winding wheel bottom stretches out the second connecting rod, the winding wheel stretches out the side fixed with the knob of the second connecting rod.

[0009] The utility model further sets up, the positioning hole is provided with a plurality of, a plurality of positioning holes are equally spaced in the channel.

[0010] The utility model further sets up, one end of the first connecting rod is fixed with the mounting plate away from the one end of protruding seat, the mounting plate is protrudingly provided with the plug-in seat, the side of unmanned aerial vehicle body is set with the plug-in slot, the plug-in seat and the plug-in slot are matched and connected fixedly between.

[0011] The utility model further sets up, the mounting plate is installed with the fixed component near the top, the outside of unmanned aerial vehicle body is drilled with the fixed hole, the fixed hole and the fixed component are matched and fixed between.

[0012] The utility model further sets up, the fixed component includes the fixed cylinder of fixed mounting on the mounting plate, the extrusion cavity is set up in the fixed cylinder, the fixed column is slidably arranged in the extrusion cavity, the fixed column and the fixed hole are matched and fixed between, the fixed column is fixed with the connecting rod away from the one end of fixed hole, the connecting rod stretches out the extrusion cavity, the extrusion cavity is installed with the compression spring of auxiliary fixed column promotion and compression.

[0013] In summary, the utility model mainly has the following beneficial effects: the utility model discloses the cooperation between the telescopic design of protruding seat and second connecting rod and the positioning assembly and positioning jack at the bottom of second connecting rod, can reverse the knob when working, drives the whole rotation of winding wheel when the knob rotates, thereby making the whole winding of connecting band on winding wheel, driving the positioning jack to be pulled in the process of connecting band pulling, and making the positioning jack drive the whole compression of ejection spring, when pulling second connecting rod, after adjusting to the length of specified, loosening knob, driving the positioning jack to be pushed under the action of compressed ejection spring, thereby making the positioning jack insert into positioning jack, thereby the overall positioning fastening treatment of second connecting rod, can effectively adjust the overall length of second connecting rod according to the different needs of work, avoids the problem that the length of unmanned aerial vehicle wing is inconvenient to adjust as far as possible, and can make unmanned aerial vehicle use different flight environment.

[0014] By the cooperation between the mounting plate and the plug-in seat and the plug-in slot, the fixing hole and the fixing assembly on the first connecting rod, pulling the connecting rod, driving the compression spring to be compressed when the connecting rod is pulled, and driving the fixed column to be withdrawn in the process of the connecting rod being pulled, at this time, the plug-in seat is inserted into the plug-in slot, and the plug-in seat and the plug-in slot are matched and clamped, thereby completing the overall fixing treatment of the first connecting rod, after the preliminary fixing of the plug-in seat and the plug-in slot, loosening the connecting rod, the fixed column is pushed under the action of the compressed compression spring, and the fixed column is inserted and mounted in the fixing hole, thereby completing the overall positioning and fastening treatment of the rotor holder body, can quickly replace the rotor holder body when the rotor holder body is damaged during work, reduces the overall replacement difficulty when the rotor holder body is damaged, and improves the overall practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the longitudinal section view of the rotor holder body of the utility model;

[0017] Figure 3 It is the structural schematic diagram of the utility model Figure 2 It is the enlarged structural schematic diagram of A in the utility model;

[0018] Figure 4 It is the longitudinal section view of the first connecting rod corresponding positioning assembly of the utility model.

[0019] In the diagram: 1. UAV body; 2. Rotor frame body; 3. First connecting rod; 4. Protruding seat; 5. Second connecting rod; 51. Limiting rod; 6. Rotating seat; 7. Propeller blade; 8. Mounting plate; 9. Plug-in seat; 10. Plug-in slot; 11. Fixing hole; 12. Fixing assembly; 121. Fixing cylinder; 122. Compression spring; 13. Connecting rod; 14. Fixing column; 15. Positioning assembly; 151. Positioning insertion hole; 16. Winding wheel; 17. Connecting belt; 18. Positioning pin; 19. Ejection spring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] A rotor assembly for a drone, such as Figures 1-3 As shown, the device includes a drone body 1, a rotor frame body 2 mounted on the side of the drone body 1, and a first connecting rod 3. The first connecting rod 3 has a cavity inside, and a limit rod 51 is fixed inside the cavity. A second connecting rod 5 is sleeved and mounted on the limit rod 51. A protruding seat 4 protrudes from the end of the first connecting rod 3 away from the drone body 1. The second connecting rod 5 extends through the protruding seat 4, and a rotating seat 6 is fixed to the end of the second connecting rod 5 extending out of the protruding seat 4. A rotating seat 6 is mounted on the rotating seat 6. Equipped with propeller blades 7, the first connecting rod 3 has a mounting plate 8 fixed at one end away from the protruding seat 4. A plug-in seat 9 protrudes from the mounting plate 8. A plug-in groove 10 is provided on the side of the UAV body 1. The plug-in seat 9 and the plug-in groove 10 are engaged and fixed together. The vertical cross section of the plug-in seat 9 is T-shaped. The plug-in groove 10 includes a socket for the plug-in seat 9 to be inserted and a through hole communicating with the socket. The engagement between the plug-in seat 9 and the plug-in groove 10 allows for the initial connection and fixing of the first connecting rod 3.

[0022] A fixing component 12 is installed near the top of the mounting plate 8. A fixing hole 11 is drilled on the outer side of the UAV body 1. The fixing hole 11 and the fixing component 12 are fixed together. The fixing component 12 includes a fixing cylinder 121 fixed on the mounting plate 8. A compression chamber is opened inside the fixing cylinder 121. A fixing post 14 is slidably arranged in the compression chamber. The fixing post 14 is fixed together with the fixing hole 11. A connecting rod 13 is fixed to the end of the fixing post 14 away from the fixing hole 11. The connecting rod 13 extends out of the compression chamber. A compression spring 122 is installed in the compression chamber to assist the fixing post 14 in pushing and pressing.

[0023] By setting the cooperation between the fixed hole 11 and the fixed assembly 12, pulling the connecting rod 13, the connecting rod 13 is pulled to drive the compression spring 122 to be compressed, and the fixed column 14 is withdrawn as a whole during the pulling of the connecting rod 13, the plug-in seat 9 is inserted into the plug-in slot 10, and the plug-in seat 9 is matched with the plug-in slot 10, thereby completing the overall fixing of the first connecting rod 3. After the plug-in seat 9 and the plug-in slot 10 are preliminarily fixed, the connecting rod 13 is loosened, the fixed column 14 is pushed under the action of the compressed compression spring 122, and the fixed column 14 is plug-in installed in the fixed hole 11, thereby completing the overall positioning and fastening of the rotor body 2. When the rotor body 2 is damaged, it can be quickly replaced, reducing the overall replacement difficulty when the rotor body 2 is damaged, and improving the overall practicality of the device.

[0024] Referring to Figure 1 , Figure 2 and Figure 4 , the protruding seat 4 is provided with a channel at the bottom, and the channel is provided with a positioning hole 151. The second connecting rod 5 is provided with a positioning cavity at the bottom away from the rotating seat 6, and the positioning cavity is provided with a positioning assembly 15. The positioning assembly 15 is matched and fastened with the positioning hole 151. The positioning assembly 15 includes a winding wheel 16 rotatably embedded in the positioning cavity. The winding wheel 16 is symmetrically provided with a connecting belt 17. The protruding seat 4 is provided with a sliding cavity on both sides corresponding to the winding wheel 16. The sliding cavity is provided with a positioning pin 18 which is matched and positioned with the positioning hole 151. One side of the positioning pin 18 is connected and fixed with one end of the connecting belt 17. The sliding cavity is provided with an ejection spring 19 which assists in pushing the positioning pin 18. The winding wheel 16 extends out of the second connecting rod 5. The winding wheel 16 is fixed with a knob on the side extending out of the second connecting rod 5.

[0025] By setting the cooperation between the protruding seat 4 and the second connecting rod 5, and the cooperation between the positioning assembly 15 at the bottom of the second connecting rod 5 and the positioning hole 151, the knob can be reversed during work. When the knob rotates, the winding wheel 16 rotates as a whole, so that the connecting belt 17 is wound on the winding wheel 16. During the pulling of the connecting belt 17, the positioning pin 18 is pulled, and the ejection spring 19 is compressed as a whole. At this time, the second connecting rod 5 is pulled. After adjusting to the specified length, the knob is loosened. The positioning pin 18 is pushed under the action of the compressed ejection spring 19, so that the positioning pin 18 is plug-in inserted into the positioning hole 151, thereby completing the overall positioning and fastening of the second connecting rod 5. The overall length of the second connecting rod 5 can be effectively adjusted according to different work needs, so as to avoid the problem that the length of the unmanned aerial vehicle is fixed and inconvenient to adjust, and the unmanned aerial vehicle can be used in different flight environments.

[0026] The positioning insertion holes 151 are provided in plurality, and the plurality of positioning insertion holes 151 are equidistantly arranged in the channel, so that the second connecting rod 5 can be effectively fixed when moving to any length during work.

[0027] The working principle of the utility model is as follows:

[0028] When the rotor holder body 2 needs to be installed, the connecting rod 13 is pulled, the connecting rod 13 is pulled to drive the compression spring 122 to be compressed, and the fixed column 14 is withdrawn in the process of the connecting rod 13 being pulled, at this time, the insertion seat 9 is inserted into the insertion slot 10, and the insertion seat 9 is matched with the insertion slot 10, so that the first connecting rod 3 is fixed, after the insertion seat 9 and the insertion slot 10 are preliminarily fixed, the connecting rod 13 is loosened, the fixed column 14 is pushed under the action of the compressed compression spring 122, and the fixed column 14 is inserted and installed in the fixed hole 11, so that the overall positioning and fastening of the rotor holder body 2 are completed.

[0029] When the overall length of the rotor holder body 2 needs to be adjusted, the knob is reversed, the knob is rotated to drive the winding wheel 16 to rotate, so that the connecting belt 17 is wound on the winding wheel 16, the positioning insertion pin 18 is pulled in the process of the connecting belt 17 being pulled, and the positioning insertion pin 18 drives the ejection spring 19 to be compressed, at this time, the second connecting rod 5 is pulled, after being adjusted to a specified length, the knob is loosened, the positioning insertion pin 18 is pushed under the action of the compressed ejection spring 19, so that the positioning insertion pin 18 is inserted into the positioning insertion hole 151, so that the overall positioning and fastening of the second connecting rod 5 are completed.

[0030] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make non-creative modification, replacement and change of the embodiments according to the needs after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A rotor assembly for a drone, comprising the drone body (1), characterized in that: A rotor frame body (2) is installed on the side of the UAV body (1). The rotor frame body (2) includes a first connecting rod (3). A cavity is opened inside the first connecting rod (3). A limit rod (51) is fixed in the cavity. A second connecting rod (5) is sleeved and installed on the limit rod (51). A protruding seat (4) is provided at the end of the first connecting rod (3) away from the UAV body (1). The second connecting rod (5) extends through the protruding seat (4). A rotating seat (6) is fixed at the end of the second connecting rod (5) extending out of the protruding seat (4). A blade (7) is installed on the rotating seat (6). The bottom of the protruding seat (4) is provided with a groove, and a positioning hole (151) is provided in the groove. The bottom of the second connecting rod (5) and the end away from the rotating seat (6) is provided with a positioning cavity. A positioning component (15) is installed in the positioning cavity. The positioning component (15) and the positioning hole (151) are positioned and fastened together.

2. The rotor assembly of a drone according to claim 1, characterized in that: The positioning component (15) includes a winding wheel (16) rotatably embedded in the positioning cavity. A connecting belt (17) is symmetrically wound on the winding wheel (16). The protruding seat (4) has sliding cavities on both sides corresponding to the winding wheel (16). A positioning pin (18) is slidably disposed in the sliding cavity. The positioning pin (18) is positioned in conjunction with the positioning hole (151). One side of the positioning pin (18) is connected and fixed to one end of the connecting belt (17). An ejector spring (19) is installed in the sliding cavity to assist the positioning pin (18) in pushing.

3. The rotor assembly of a drone according to claim 2, characterized in that: The bottom of the winding wheel (16) extends out of the second connecting rod (5), and a knob is fixed on one side of the winding wheel (16) extending out of the second connecting rod (5).

4. The rotor assembly of a drone according to claim 3, characterized in that: The positioning holes (151) are provided in a plurality of manner, and the plurality of positioning holes (151) are equidistantly arranged in the channel.

5. The rotor assembly of a drone according to claim 4, characterized in that: One end of the first connecting rod (3) away from the protruding seat (4) is fixed with a mounting plate (8), and a plug-in seat (9) is protruding on the mounting plate (8). A plug-in groove (10) is opened on the side of the UAV body (1), and the plug-in seat (9) and the plug-in groove (10) are engaged and fixed together.

6. The rotor assembly of a drone according to claim 5, characterized in that: The mounting plate (8) is fitted with a fixing component (12) near the top. A fixing hole (11) is drilled on the outer side of the UAV body (1). The fixing hole (11) and the fixing component (12) are fixed together.

7. The rotor assembly of a drone according to claim 6, characterized in that: The fixing assembly (12) includes a fixing cylinder (121) fixed on the mounting plate (8). The fixing cylinder (121) has a squeezing chamber inside. A fixing post (14) is slidably arranged in the squeezing chamber. The fixing post (14) is fixed in conjunction with the fixing hole (11). A connecting rod (13) is fixed at one end of the fixing post (14) away from the fixing hole (11). The connecting rod (13) extends out of the squeezing chamber. A compression spring (122) is installed in the squeezing chamber to assist the fixing post (14) in pushing and pressing.

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