Rack structure for plant protection unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a rack structure for a plant protection unmanned aerial vehicle, the rack structure for the plant protection unmanned aerial vehicle comprises a machine shell and an adjustable supporting mechanism, the side end of the machine shell is fixedly connected with a machine arm, and the bottom of the machine arm is provided with a mounting groove; the adjustable supporting mechanism comprises a rotating shaft fixedly connected to the interior of the mounting groove, an L-shaped inserting hole is formed in the surface of the rotating shaft, and supporting legs are rotationally connected to the surface of the rotating shaft; when the supporting leg is adjusted to be in the vertical state, a worker only needs to loosen the adjusting plate, the metal spring drives the inserting plate to be connected with the L-shaped inserting hole in an inserted mode, at the moment, the supporting leg is vertically locked, and the situation that an existing supporting leg is prone to shaking in the vertical state can be effectively solved; the situation that the gravity center of the unmanned aerial vehicle is unstable due to shaking in the flying process is reduced, meanwhile, the unmanned aerial vehicle can be stably supported by the supporting legs, and the landing stability of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a frame structure for a plant protection unmanned aerial vehicle. Background Technique

[0002] A plant protection unmanned aerial vehicle is an unmanned aircraft used for agricultural and forestry plant protection operations. The frame of a plant protection unmanned aerial vehicle usually consists of a fuselage, arms, landing gear and other parts. As the main frame of the unmanned aerial vehicle, the frame bears other important components of the unmanned aerial vehicle and is the physical basis for the stable flight of the unmanned aerial vehicle.

[0003] For example, in a Chinese patent for an unmanned aerial vehicle frame (the authorized announcement number is CN220332974U), although the support rod is fixed in the placement cavity by means of threaded connection between the fixing bolt and the fixing screw hole, this only functions to lock when the sleeve is clamped to the snap ring. When the support rod penetrates out of the placement cavity, the connection part between the support rod and the placement cavity is in an unfixed state at this time. During the flight of the unmanned aerial vehicle, the passing airflow can easily blow and shake the support rod, increasing the probability of the unmanned aerial vehicle shaking or vibrating and affecting the stable flight of the unmanned aerial vehicle. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a frame structure for a plant protection unmanned aerial vehicle, and the adjustable support mechanism not only has a convenient adjustment function, but also can be effectively locked after adjustment to ensure the normal operation of the unmanned aerial vehicle.

[0005] The technical solution adopted by the utility model is specifically as follows:

[0006] A frame structure for a plant protection unmanned aerial vehicle, including a fuselage and an adjustable support mechanism. The side end of the fuselage is fixedly connected with an arm, and an installation groove is opened at the bottom of the arm;

[0007] In a preferred solution, the adjustable support mechanism includes a rotating shaft fixedly connected to the inside of the installation groove. An L-shaped insertion hole is opened on the surface of the rotating shaft. A leg is rotatably connected to the surface of the rotating shaft. The bottom of the leg penetrates out of the installation groove. An installation cavity communicating with one opening of the L-shaped insertion hole is opened at the bottom of the leg. A plug board is slidably connected to the inside of the installation cavity. The top of the plug board penetrates the installation cavity and is inserted into the L-shaped insertion hole.

[0008] In a preferred solution, the two openings of the L-shaped insertion hole are respectively in a vertical and a horizontal state, and the center lines of the two openings of the L-shaped insertion hole and the center point of the plug board all intersect with the axis line of the rotating shaft.

[0009] In a preferred solution, a metal spring is arranged between the plug board and the installation cavity, and the metal spring is always in a compressed state.

[0010] In a preferred embodiment, an adjustment cavity communicating with the installation cavity is formed at the side end of the leg, and an adjustment plate disposed inside the adjustment cavity is fixedly connected to the side end of the insertion plate.

[0011] In a preferred embodiment, resistance increasing grooves are formed at both the top and bottom ends of the adjustment plate, and rounded corners are provided at the corners of the adjustment plate and the resistance increasing grooves.

[0012] In a preferred embodiment, positioning grooves are formed at both the top and side ends of the leg. The intersection line of the center lines of the two positioning grooves and the axis line of the rotating shaft together form a ninety-degree angle line. A rubber spring fixedly connected to the installation groove is clamped inside the lower positioning groove.

[0013] In a preferred embodiment, a slider is slidably connected inside the installation cavity. The bottom of the metal spring contacts the slider. The bottom of the slider penetrates out of the installation cavity, and a rubber damping block is fixedly connected to the bottom of the slider.

[0014] The technical effects achieved by the present utility model are as follows:

[0015] When the leg is adjusted to the vertical state, the staff only needs to release the adjustment plate, and the metal spring drives the insertion plate to be inserted into the L-shaped insertion hole. At this time, the leg is vertically locked, which can effectively solve the problem that the existing leg is prone to shaking in the vertical state, not only reducing the situation of unstable center of gravity of the drone during flight due to shaking, but also enabling the leg to stably support the drone to improve the stability of the takeoff and landing of the drone;

[0016] The design of sharing a metal spring for resetting the insertion plate and the rubber damping block eliminates the need to separately set a reset structure for the insertion plate and the rubber damping block, not only simplifying the overall structure of the adjustable support mechanism, but also during the process of the drone landing on the ground, the rubber damping block squeezes the metal spring through the slider, and the metal spring increases the insertion force of the insertion plate into the L-shaped insertion hole, which can improve the stability of the insertion of the insertion plate into the L-shaped insertion hole and lock the leg more stably on the surface of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exploded schematic view of the overall structure in the present utility model;

[0018] Figure 2 is a folded schematic view of the overall structure in the present utility model;

[0019] Figure 3 is a connection schematic view of the machine arm and the adjustable support mechanism in the present utility model;

[0020] Figure 4 is a cross-sectional schematic view of the machine arm and the adjustable support mechanism in the present utility model;

[0021] Figure 5 Yes Figure 4 It is an enlarged view of A in the middle.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 100, housing; 200, arm; 210, installation groove; 300, adjustable support mechanism; 310, rotating shaft; 311, L-shaped jack; 320, leg; 321, installation cavity; 322, adjustment cavity; 323, positioning groove; 330, insertion plate; 340, metal spring; 350, adjustment plate; 351, resistance increasing groove; 360, rubber spring; 370, slider; 380, rubber shock absorber. Specific Embodiment

[0024] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0025] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The "in a preferred embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that mutually excludes other embodiments.

[0027] Thirdly, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0028] Embodiment 1

[0029] Please refer to the attached Figures 1-5 As shown, it is the first embodiment of the present utility model. This embodiment provides a frame structure for a plant protection unmanned aerial vehicle, including a housing 100 and an adjustable support mechanism 300. The side end of the housing 100 is fixedly connected with an arm 200, and an installation groove 210 is opened at the bottom of the arm 200;

[0030] In a preferred embodiment, please refer to Figure 3 , Figure 4 andFigure 5 The adjustable support mechanism 300 includes a rotating shaft 310 fixedly connected to the inside of the installation groove 210. An L-shaped insertion hole 311 is formed on the surface of the rotating shaft 310. A support leg 320 is rotatably connected to the surface of the rotating shaft 310. The bottom of the support leg 320 penetrates out of the installation groove 210. An installation cavity 321 communicating with one opening of the L-shaped insertion hole 311 is formed at the bottom of the support leg 320. A plug board 330 is slidably connected to the inside of the installation cavity 321. The top of the plug board 330 penetrates through the installation cavity 321 and is inserted into the L-shaped insertion hole 311.

[0031] The two openings of the L-shaped insertion hole 311 are respectively in a vertical and a horizontal state. The center lines of the two openings of the L-shaped insertion hole 311 and the center point of the plug board 330 all intersect with the axis line of the rotating shaft 310. This can ensure that when the support leg 320 is rotated to a horizontal or vertical state, the installation cavity 321 can communicate with the corresponding opening of the L-shaped insertion hole 311, so as to improve the success rate of inserting the plug board 330 into the L-shaped insertion hole 311.

[0032] A metal spring 340 is arranged between the plug board 330 and the installation cavity 321. The metal spring 340 is always in a compressed state. This can not only reset the plug board 330 automatically after the plug board 330 loses the block, but also increase the insertion stability of the plug board 330 and the L-shaped insertion hole 311 during the process of inserting the plug board 330 into the L-shaped insertion hole 311.

[0033] An adjustment cavity 322 communicating with the installation cavity 321 is formed at the side end of the support leg 320. An adjustment plate 350 arranged inside the adjustment cavity 322 is fixedly connected to the side end of the plug board 330. This enables the staff to easily adjust the plug board 330, thereby reducing the adjustment difficulty of the staff.

[0034] Resistance increasing grooves 351 are formed at both the top and bottom ends of the adjustment plate 350. The corners of the adjustment plate 350 and the resistance increasing grooves 351 are all rounded. This can enable the staff to stably move the adjustment plate 350, thereby reducing the probability of the staff's hand slipping.

[0035] Positioning grooves 323 are formed at both the top and side ends of the support leg 320. The intersection line of the center lines of the two positioning grooves 323 and the axis line of the rotating shaft 310 together form a ninety-degree included angle line. A rubber spring 360 fixedly connected to the installation groove 210 is clamped inside the lower positioning groove 323. This can be in an elastically locked state when the support leg 320 is just adjusted to a vertical state, further improving the success rate of inserting the L-shaped insertion hole 311 and the plug board 330.

[0036] In this embodiment, the initial state is when the adjustable support mechanism 300 is in a vertical state. When the staff needs to hide the adjustable support mechanism 300, the staff first slides the adjustment plate 350 in the direction of the rubber shock absorber 380. The adjustment plate 350 drives the plug plate 330 out of the L-shaped socket 311. At this time, the leg 320 loses the block, and the staff can rotate the leg 320 to a horizontal state. When the leg 320 just rotates to the horizontal state, the installation cavity 321 just aligns and communicates with the downward opening of the L-shaped socket 311. At this time, the staff only needs to release the adjustment plate 350, and the metal spring 340 quickly pushes the plug plate 330 back. The plug plate 330 penetrates out of the installation cavity 321 and inserts into the lower opening of the L-shaped socket 311. At this time, the leg 320 is horizontally locked, which simplifies the steps of horizontally hiding the existing leg 320 and makes the adjustment work of the staff easier.

[0037] Embodiment 2

[0038] Please refer to the appendix Figure 3 、 Figure 4 and Figure 5 As shown in, this is the second embodiment of the present utility model. This embodiment provides a frame structure for a plant protection unmanned aerial vehicle, including a slider 370 slidably connected to the inside of the installation cavity 321. The bottom of the metal spring 340 contacts the slider 370. The bottom of the slider 370 penetrates out of the installation cavity 321, and a rubber shock absorber 380 is fixedly connected to the bottom of the slider 370;

[0039] Adopting the design that the plug plate 330 and the rubber shock absorber 380 share a metal spring 340 for resetting, this does not require a separate reset structure for the plug plate 330 and the rubber shock absorber 380, which not only effectively simplifies the overall structure of the adjustable support mechanism 300, but also during the process of the unmanned aerial vehicle landing on the ground, the rubber shock absorber 380 squeezes the metal spring 340 through the slider 370, and the metal spring 340 increases the insertion force of the plug plate 330 into the L-shaped socket 311, which can improve the stability of the insertion of the plug plate 330 into the L-shaped socket 311 and lock the leg 320 more stably on the surface of the rotating shaft 310.

[0040] The working principle of the present utility model is as follows: Taking the initial state when the adjustable support mechanism 300 is hidden inside the installation groove 210, when the staff needs to use the adjustable support mechanism 300, the staff first slides the adjustment plate 350 towards the direction of the rubber shock absorber 380. The adjustment plate 350 drives the insertion plate 330 out of the L-shaped insertion hole 311. At this time, the support leg 320 loses the block, and the staff can rotate the support leg 320 to the vertical state. When the support leg 320 just rotates to the vertical state, the installation cavity 321 just aligns and communicates with the downward opening of the L-shaped insertion hole 311. At this time, the staff only needs to release the adjustment plate 350, and the metal spring 340 quickly pushes the insertion plate 330 back. The insertion plate 330 penetrates out of the installation cavity 321 and inserts into the lower opening of the L-shaped insertion hole 311. At this time, the support leg 320 is vertically locked, which can effectively solve the problem that the existing support leg 320 is prone to shaking in the vertical state, not only reducing the situation of unstable center of gravity of the drone during flight due to shaking, but also enabling the support leg 320 to stably support the drone to improve the stability of the takeoff and landing of the drone.

[0041] It should be noted that in the above description, the housing 100 and the arm 200 are both devices with relatively mature applications in the prior art. The specific models can be selected according to actual needs and will not be elaborated here.

[0042] The above is only the preferred implementation mode of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A frame structure for a plant protection UAV, characterized in that: Including A housing (100), a machine arm (200) is fixedly connected to the side end of the housing (100), and an installation groove (210) is formed at the bottom of the machine arm (200); An adjustable support mechanism (300), the adjustable support mechanism (300) includes a rotating shaft (310) fixedly connected to the inside of the installation groove (210), an L-shaped insertion hole (311) is formed on the surface of the rotating shaft (310), a support leg (320) is rotatably connected to the surface of the rotating shaft (310), the bottom of the support leg (320) penetrates out of the installation groove (210), an installation cavity (321) communicated with one opening of the L-shaped insertion hole (311) is formed at the bottom of the support leg, a plug board (330) is slidably connected to the inside of the installation cavity (321), and the top of the plug board (330) penetrates through the installation cavity (321) and is inserted into the L-shaped insertion hole (311).

2. The frame structure for a plant protection UAV according to claim 1, wherein: The two openings of the L-shaped insertion hole (311) are respectively in a vertical and a horizontal state, and the center lines of the two openings of the L-shaped insertion hole (311) and the center point of the plug board (330) all intersect with the axis line of the rotating shaft (310).

3. The frame structure for the plant protection unmanned aerial vehicle according to claim 1, characterized in that: A metal spring (340) is arranged between the plug board (330) and the installation cavity (321), and the metal spring (340) is always in a compressed state.

4. The frame structure for a plant protection UAV according to claim 1, wherein: An adjustment cavity (322) communicated with the installation cavity (321) is formed at the side end of the support leg (320), and an adjustment plate (350) arranged inside the adjustment cavity (322) is fixedly connected to the side end of the plug board (330).

5. The frame structure for a plant protection UAV according to claim 4, wherein: Resistance increasing grooves (351) are formed at the top and bottom ends of the adjustment plate (350), and the corners of the adjustment plate (350) and the resistance increasing grooves (351) are all rounded.

6. The frame structure for a plant protection UAV according to claim 1, wherein: Positioning grooves (323) are formed at the top and side ends of the support leg (320), and the intersection line of the center lines of the two positioning grooves (323) and the axis line of the rotating shaft (310) together form a ninety-degree included angle line, and a rubber spring (360) fixedly connected to the installation groove (210) is clamped inside the lower positioning groove (323).

7. The frame structure for a plant protection UAV according to claim 3, characterized in that: A slider (370) is slidably connected to the inside of the installation cavity (321), the bottom of the metal spring (340) contacts the slider (370), the bottom of the slider (370) penetrates out of the installation cavity (321), and a rubber damping block (380) is fixedly connected to the bottom of the slider (370).

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