Unmanned aerial vehicle arm folding and unfolding mechanism

Abstract

The utility model discloses an unmanned aerial vehicle arm folding and unfolding mechanism, and belongs to the technical field of unmanned aerial vehicles. An unmanned aerial vehicle arm folding and unfolding mechanism comprises an arm body and a mounting seat, and further comprises a storage arm rotationally mounted on the mounting seat through a rotating shaft, and the arm body is in sliding connection with the storage arm; the first insertion rod is installed on the installation base in a sliding mode, an insertion groove matched with the first insertion rod is formed in the side, close to the installation base, of the storage arm, and the installation base is provided with a limiting part for controlling the length, extending out of the installation base, of the first insertion rod; the vehicle arm body slides into the storage arm and is fixed through the positioning bolt, meanwhile, the limiting part drives the first inserting rod to slide downwards, the vehicle arm body and the storage arm are rotated to be in the vertical state, the limiting part controls the first inserting rod to slide upwards and be inserted into the inserting groove, and therefore the vehicle arm body is folded; and the occupied space of the arm body is reduced, and carrying and storage are convenient.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV arm retraction and extension mechanism. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment or onboard computer program control systems. Because small UAVs have a variety of functions such as photography, transportation, rescue, and lighting, they are increasingly developing in real life.

[0003] The boom (also called the wing arm or boom) of a drone refers to the structure that supports and connects the various main components of the drone (such as motors, propellers, flight control systems, etc.). The boom is usually one of the drone's skeleton components, responsible for effectively connecting the power system and control system. The quality of the boom design directly affects the drone's performance, flight stability, and damage resistance.

[0004] The arms of existing drones are generally fixed to the drone body. Drones with fixed arms take up a lot of space because the arms cannot be retracted. In some cases, the arms of drones even exceed the space occupied by the body, which brings a lot of inconvenience to carrying and storing. Utility Model Content

[0005] The purpose of this invention is to solve the problem that drones with fixed arms occupy a lot of space because their arms cannot be retracted. In some cases, the arms of drones even exceed the space occupied by the fuselage, causing many inconveniences in carrying and storing them. Therefore, this invention proposes a drone arm retraction and extension mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drone arm retraction and extension mechanism includes an arm body and a mounting base, and further includes: a storage arm, which is rotatably mounted on the mounting base via a pivot, wherein the arm body and the storage arm are slidably connected; a first insert rod slidably mounted on the mounting base, wherein both ends of the first insert rod extend out of the mounting base, and the storage arm has a slot matching the first insert rod on the side near the mounting base, and the mounting base is provided with a limiting part for controlling the length of the first insert rod extending out of the mounting base.

[0008] In order to retract the arm body, preferably, a torsion spring is installed between the retracting arm and the mounting base, a limiting plate is fixedly connected to the side of the arm body near the mounting base, a limiting groove is opened inside the retracting arm, and the limiting plate is slidably connected to the inner wall of the limiting groove.

[0009] In order to place the arm body vertically, preferably, the circumferential surface of the first inserting rod is fixedly connected with a fixed plate, the inside of the mounting seat is provided with a sliding groove, the fixed plate is in sliding connection with the inner wall of the sliding groove, and the first spring is arranged between the fixed plate and the inner wall of the sliding groove.

[0010] In order to place the arm body horizontally, preferably, the mounting seat is slidably provided with a second inserting rod, the second inserting rod is matched with the inserting groove, and one end of the second inserting rod extends out of the mounting seat.

[0011] In order to limit the arm body in the horizontal state, further, one end of the second inserting rod extending into the mounting seat is fixedly connected with a connecting block, the inside of the mounting seat is provided with a sliding groove, the connecting block is in sliding connection with the inner wall of the sliding groove, and the second spring is arranged between the connecting block and the inner wall of the sliding groove.

[0012] In order to realize single control mode, still further, the fixed plate is fixedly connected with a connecting frame, the inside of the fixed plate is provided with a connecting groove, the connecting groove is communicated with the sliding groove and the sliding groove, the connecting frame is in sliding connection with the inner wall of the connecting groove, the connecting frame is rotatably provided with a roller, the top of the connecting block is provided with a groove, the groove is provided with an inclined surface, and the roller is in contact with the inclined surface in the groove.

[0013] Compared with the prior art, the unmanned aerial vehicle arm folding and unfolding mechanism has the following beneficial effects:

[0014] 1. The unmanned aerial vehicle arm folding and unfolding mechanism has the following beneficial effects:

[0015] 2. The unmanned aerial vehicle arm folding and unfolding mechanism has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides an unmanned aerial vehicle arm folding and unfolding mechanism's axial measurement structure schematic diagram;

[0017] Figure 2The utility model provides a kind of unmanned plane arm retraction mechanism's storage arm cut structure schematic diagram;

[0018] Figure 3 The utility model provides a kind of unmanned plane arm retraction mechanism's mounting seat cut structure schematic diagram;

[0019] Figure 4 The utility model provides a kind of unmanned plane arm retraction mechanism's connecting block cut structure schematic diagram.

[0020] In the drawing: 1, arm body;201, first inserting rod;202, fixed plate;203, sliding groove;204, first spring;205, slot;301, second inserting rod;302, connecting block;303, sliding groove;304, second spring;305, connecting frame;306, connecting groove;307, roller;308, recess;4, mounting seat;5, storage arm;6, rotating shaft;7, torsional spring;8, limiting plate;9, limiting groove. Specific embodiments

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model.

[0023] Embodiment:

[0024] Refer to Figures 1-4The utility model embodiment provides a kind of unmanned aerial vehicle arm retraction mechanism, including arm body 1 and mounting seat 4, mounting seat 4 is fixedly installed on unmanned aerial vehicle, further include: storage arm 5, it is rotatably installed on mounting seat 4 by pivot 6, wherein, arm body 1 is slidably connected with storage arm 5, positioning bolt is installed on storage arm 5, for fixed arm body 1 the length of extension storage arm 5;First plug bar 201 is slidably installed on mounting seat 4, first plug bar 201 is vertically arranged, for the limiting of arm body 1 in vertical state, wherein, the both ends of first plug bar 201 are extended mounting seat 4 in initial state, the lower end of first plug bar 201 is fixedly connected with protrusion, protrusion acts as handle, the side of storage arm 5 close to mounting seat 4 is equipped with the insertion slot 205 matched with first plug bar 201, when arm body 1 and storage arm 5 are rotated to vertical position, first insertion slot 205 is collinear with the axis of first plug bar 201, mounting seat 4 is equipped with the limiting portion of control first plug bar 201 the length of extension mounting seat 4, mounting seat 4 is fixedly connected with two baffle plates, when arm body 1 is in horizontal state and vertical state, respectively with two baffle plates contact, so that user better operation, make arm body 1 quickly positioned to horizontal state and vertical state, the contact surface of two baffle plates with arm body 1 is all soft pad.

[0025] When retracting arm body 1, arm body 1 is slid into storage arm 5, and arm body 1 is fixed by positioning bolt, the length of extension arm body 1 is shortened, first plug bar 201 is driven to slide downward by limiting portion, arm body 1 and storage arm 5 are rotated to vertical state, and first plug bar 201 is controlled to slide upward and insert into insertion slot 205 by limiting portion, so that arm body 1 is retracted, the occupied space of arm body 1 is reduced, and carrying and storage are facilitated.

[0026] Torsional spring 7 is installed between storage arm 5 and mounting seat 4, when storage arm 5 is in horizontal state, torsional spring 7 is in free state, the side of arm body 1 close to mounting seat 4 is fixedly connected with limiting plate 8, the height of limiting plate 8 is greater than the height of arm body 1, for limiting arm body 1 from sliding out of storage arm 5, limiting groove 9 is formed in the inside of storage arm 5, limiting plate 8 is slidably connected with the inner wall of limiting groove 9, fixed plate 202 is fixedly connected on the circumference of first plug bar 201, fixed plate 202 can be circular or rectangular, sliding groove 203 is formed in the inside of mounting seat 4, fixed plate 202 is slidably connected with the inner wall of sliding groove 203, first spring 204 is installed between fixed plate 202 and the inner wall of sliding groove 203.

[0027] In use, the first inserting rod 201 is pulled downward, the first inserting rod 201 drives the fixed plate 202 to slide downward along the sliding groove 203 and compresses the first spring 204, then the machine arm body 1 and the storage arm 5 are turned to the vertical position, and the torsion spring 7 is tightened, the first inserting rod 201 is released, the first spring 204 is reset, the first inserting rod 201 is inserted into the inserting groove 205, and the machine arm body 1 is stored.

[0028] The second inserting rod 301 is slidably arranged on the mounting seat 4, is arranged horizontally, and is used for limiting the machine arm body 1 in the horizontal state, the second inserting rod 301 is matched with the inserting groove 205, one end of the second inserting rod 301 extends out of the mounting seat 4, the one end of the second inserting rod 301 extending into the mounting seat 4 is fixedly connected with a connecting block 302, a sliding groove 303 is arranged in the inside of the mounting seat 4, the connecting block 302 is slidably connected with the inner wall of the sliding groove 303, a second spring 304 is arranged between the connecting block 302 and the inner wall of the sliding groove 303, a connecting frame 305 is fixedly connected to the fixed plate 202, a connecting groove 306 is arranged in the inside of the fixed plate 202, the connecting groove 306 is communicated with the sliding groove 203 and the sliding groove 303, the connecting frame 305 is slidably connected with the inner wall of the connecting groove 306, the connecting frame 305 longitudinally slides in the connecting groove 306, a roller 307 is rotatably arranged on the connecting frame 305, a recess 308 is arranged on the top of the connecting block 302, and an inclined surface is arranged in the recess 308, and the roller 307 is in contact with the inclined surface in the recess 308.

[0029] In use, the first inserting rod 201 is pulled downward, the first inserting rod 201 drives the fixed plate 202 to slide downward, the fixed plate 202 drives the connecting frame 305 to slide downward along the connecting groove 306, the connecting frame 305 drives the roller 307 to roll on the inclined surface in the recess 308, the roller 307 drives the connecting block 302 to slide along the sliding groove 303 and compresses the second spring 304, the connecting block 302 drives the second inserting rod 301 to slide into the mounting seat 4, and the second inserting rod 301 is pulled out of the inserting groove 205, at this time, the storage arm 5 and the machine arm body 1 can be turned, when the machine arm body 1 is released, the first inserting rod 201 is pulled downward, the first inserting rod 201 is pulled out of the inserting groove 205, the second inserting rod 301 slides into the mounting seat 4, the machine arm body 1 is turned to the horizontal position, the first inserting rod 201 is released, at this time, the second inserting rod 301 returns to the initial position and is inserted into the inserting groove 205, and the machine arm body 1 is limited in the horizontal position.

[0030] The unmanned aerial vehicle arm retraction mechanism, in use, slides the arm body 1 into the storage arm 5, and fixes the arm body 1 with the positioning bolt, shortens the length of the arm body 1, then pulls down the first insertion rod 201, the first insertion rod 201 drives the fixed plate 202 to slide down along the sliding groove 203 and compresses the first spring 204, at the same time, the fixed plate 202 drives the connecting frame 305 to slide down along the connecting groove 306, the connecting frame 305 drives the roller 307 to roll on the inclined surface in the recess 308, and the roller 307 drives the connecting block 302 to slide along the sliding groove 303 and compresses the second spring 304, the connecting block 302 drives the second insertion rod 301 to slide into the mounting base 4, and the second insertion rod 301 is pulled out of the insertion groove 205.

[0031] Then, the arm body 1 and the storage arm 5 are rotated to the vertical position, at the same time, the torsional spring 7 is tightened, the first insertion rod 201 is loosened, the first spring 204 is reset, the first insertion rod 201 is inserted into the insertion groove 205, and the arm body 1 is stored, when the arm body 1 is released, the first insertion rod 201 is pulled down, the first insertion rod 201 is pulled out of the insertion groove 205, at the same time, the second insertion rod 301 slides into the mounting base 4, the arm body 1 is rotated to the horizontal position, the first insertion rod 201 is loosened, at this time, the second insertion rod 301 returns to the initial position and is inserted into the insertion groove 205, at this time, the arm body 1 is released.

[0032] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A UAV arm winding and unwinding mechanism, comprising an arm body (1) and a mounting seat (4), characterized in that, Also include: The storage arm (5) is rotatably installed on the mounting seat (4) through the rotating shaft (6), Wherein, the machine arm body (1) and the storage arm (5) are slidingly connected; The first insertion rod (201) is slidingly installed on the mounting seat (4), Wherein, both ends of the first insertion rod (201) extend out of the mounting seat (4), the side of the storage arm (5) close to the mounting seat (4) is provided with an insertion slot (205) matched with the first insertion rod (201), and the mounting seat (4) is provided with a limiting portion for controlling the length of the first insertion rod (201) extending out of the mounting seat (4).

2. The unmanned aerial vehicle arm winding and unwinding mechanism according to claim 1, characterized in that, The torsional spring (7) is installed between the storage arm (5) and the mounting seat (4), the side of the machine arm body (1) close to the mounting seat (4) is fixedly connected with a limiting plate (8), the inside of the storage arm (5) is provided with a limiting slot (9), and the limiting plate (8) and the inner wall of the limiting slot (9) are slidingly connected.

3. The unmanned aerial vehicle arm deployment mechanism of claim 1, wherein, The circumferential surface of the first insertion rod (201) is fixedly connected with a fixed plate (202), the inside of the mounting seat (4) is provided with a sliding groove (203), the fixed plate (202) and the inner wall of the sliding groove (203) are slidingly connected, and the first spring (204) is installed between the fixed plate (202) and the inner wall of the sliding groove (203).

4. The unmanned aerial vehicle arm releasing and winding mechanism according to claim 3, characterized in that, The second insertion rod (301) is slidingly installed on the mounting seat (4), the second insertion rod (301) is matched with the insertion slot (205), and one end of the second insertion rod (301) extends out of the mounting seat (4).

5. The unmanned aerial vehicle arm deployment mechanism of claim 4, wherein, The end of the second insertion rod (301) extending into the mounting seat (4) is fixedly connected with a connecting block (302), the inside of the mounting seat (4) is provided with a sliding groove (303), the connecting block (302) and the inner wall of the sliding groove (303) are slidingly connected, and the second spring (304) is installed between the connecting block (302) and the inner wall of the sliding groove (303).

6. The unmanned aerial vehicle arm deployment mechanism of claim 5, wherein, The fixed plate (202) is fixedly connected with a connecting frame (305), the inside of the fixed plate (202) is provided with a connecting slot (306), the connecting slot (306) is in communication with the sliding groove (203) and the sliding groove (303), Wherein, the connecting frame (305) and the inner wall of the connecting slot (306) are slidingly connected, the connecting frame (305) is rotatably installed with a roller (307), the top of the connecting block (302) is provided with a groove (308), the groove (308) is provided with an inclined surface, and the roller (307) is in contact with the inclined surface in the groove (308).

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