Foldable unmanned aerial vehicle for low-altitude flight

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses a foldable unmanned aerial vehicle for low-altitude flight, which comprises an unmanned aerial vehicle body and a second wing, the left side and the right side of the unmanned aerial vehicle body are fixedly connected with the first wing, a folding mechanism is arranged in the second wing, and a buffer mechanism is arranged at the bottom of the unmanned aerial vehicle body. Through a folding mechanism, a pull plate is pulled, one end, in a slot, of a fixing block is driven into a fixing groove, then a second wing is turned over, the second wing and a first wing are folded, the folded unmanned aerial vehicle body can save space during storage, when the unmanned aerial vehicle body is used, the second wing is turned over reversely, a limiting plate limits the second wing, and the unmanned aerial vehicle body is convenient to use. The second wing and the first wing are completely in a horizontal state, the left end of the fixing frame can be inserted into the inserting groove, then the pulling plate is loosened, the fixing block can move into the inserting groove through the elastic force of the first spring, the fixing block is inserted into the fixing groove, the fixing frame is fixed, and therefore the second wing is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a foldable unmanned aerial vehicle for low-altitude flight. Background Art

[0002] A drone is a device that can fly through remote control of a computer without direct human control. It can facilitate the transportation of materials and survey the external environment. It has the characteristics of small size, easy operation and low energy consumption.

[0003] According to application number 201821482431.6, a drone with a rescue function includes a drone, a camera is fixedly connected to the center of the front of the drone, speakers are fixedly connected to the left and right sides of the front of the drone, a display screen is fixedly connected to the center of the top of the drone, a first magnetic groove is fixedly connected to the bottom of the first connecting block, second connecting blocks are fixedly connected to the bottom of the left and right ends of the first magnetic groove, the sliding rod is gap-connected with the sliding block, a clamping block is fixedly connected to the top of the sliding rod, a support rod is fixedly connected to the center of the inner end of the bottom block, the inner end of the support rod is fixedly connected to the second magnetic groove, and a pulling block is fixedly connected to the center of the bottom end of the second magnetic groove.

[0004] When rescue work is needed, the drone and the camera can be used together to fully carry out rescue work, and supplies can be delivered to the trapped people in advance, which enhances the detection function and increases the chance of rescue. However, the wings of the drone cannot be folded, which will result in the inability to save the storage space of the drone. Utility Model Content

[0005] The purpose of the utility model is to provide a foldable low-altitude flying drone to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foldable low-altitude flying drone, comprising a drone body and a second wing, the first wing being fixedly connected to the left and right sides of the drone body, a folding mechanism being arranged inside the second wing, and a buffer mechanism being arranged at the bottom of the drone body;

[0007] The folding mechanism comprises a flip assembly and a fixing assembly, wherein the flip assembly is arranged on the left side of the second wing, and the fixing assembly is arranged on the bottom of the second wing;

[0008] The flip assembly includes a first fixing plate and a second fixing plate, the first fixing plate is fixedly connected to the left side of the second wing, the second fixing plate is fixedly connected to the right side of the first wing, a connecting groove is provided on the left side of the first fixing plate, connecting rods are fixedly connected to the front and rear sides of the second fixing plate near the right end, and a limiting plate is fixedly connected to the bottom of the second wing.

[0009] Preferably, the right end of the second fixing plate is inserted into the connecting groove, and the other end of the connecting rod is rotatably connected to the connecting groove.

[0010] Preferably, the left side of the top of the limiting plate is attached to the bottom of the second wing.

[0011] Preferably, the fixing assembly includes a fixing frame, which is fixedly connected to the bottom of the second wing, a connecting block is fixedly connected to the bottom of the first wing, a slot is provided at the bottom of the connecting block, a connecting frame is fixedly connected to the left side of the connecting block, a guide rod is slidably connected to the left side of the connecting frame, a pull plate is fixedly connected to the left end of the guide rod, a connecting plate is fixedly connected to the right end of the guide rod, a first spring is symmetrically fixedly connected to the left side of the connecting plate, a fixing block is fixedly connected to the right side of the connecting plate, and a right fixing groove is provided on the left side of the fixing frame corresponding to the right end of the fixing block.

[0012] Preferably, the width of the fixing groove is greater than the width of the left end of the fixing frame, the right end of the guide rod extends into the connecting frame, and the left end of the first spring is fixedly connected to the left side in the connecting frame.

[0013] Preferably, a groove corresponding to the sliding block is opened on the left side of the connecting block, and the surface of the fixing block is slidably connected in the groove.

[0014] Preferably, the buffer mechanism includes a telescopic rod, which is fixedly connected to the left side of the bottom of the drone body in a front-to-back symmetrical manner, a buffer block is fixedly connected to the bottom end of the telescopic rod, a first limiting ring is fixedly connected to the surface of the telescopic rod near the top, a second limiting ring is fixedly connected to the surface of the telescopic rod near the bottom, and a second spring is sleeved on the surface of the telescopic rod between the first limiting ring and the second limiting ring.

[0015] Preferably, the bottom end of the second spring is fixedly connected to the top of the second limiting ring, the top end of the second spring is fixedly connected to the bottom of the first limiting ring, and the buffer mechanism has two groups, which are symmetrically arranged at the bottom of the drone body.

[0016] Compared with the prior art, the utility model provides a foldable low-altitude flying drone, which has the following beneficial effects:

[0017] 1. The foldable low-altitude flying drone uses a folding mechanism to pull the pull plate so that one end of the fixing block in the slot drives into the fixing slot, and then flips the second wing so that the second wing is folded with the first wing. The folded drone body can save space when stored. When the drone body is used, the second wing is flipped in the opposite direction, and the limiting plate limits the second wing so that the second wing is completely in a horizontal state with the first wing. The left end of the fixing frame will be inserted into the slot, and then the pull plate will be released. The fixing block will move into the slot through the elastic force of the first spring, so that the fixing block is inserted into the fixing slot, the fixing frame is fixed, and thus the second wing is fixed.

[0018] 2. The foldable low-altitude flying drone has a buffer mechanism. When the drone body lands, the buffer block will contact the ground, and the buffer block will drive the telescopic rod to extend and retract. At the same time, the second limit block will move upward to squeeze the second spring. The elastic force of the second spring can offset the impact force generated when the buffer block contacts the ground, thereby protecting the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structural flip assembly of the utility model;

[0022] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the structural limit plate of the utility model;

[0024] Figure 5 This is a schematic diagram of the structural fixing components of the utility model;

[0025] Figure 6 It is an enlarged three-dimensional schematic diagram of the left side of the structural connection block of the utility model;

[0026] Figure 7 This is a schematic diagram of the structural fixing groove of the utility model;

[0027] Figure 8 It is a schematic diagram of the structural buffer mechanism of the utility model.

[0028] In the figure: 1. UAV body; 2. first wing; 3. second wing; 4. folding mechanism; 41. flip assembly; 411. first fixing plate; 412. connecting groove; 413. second fixing plate; 414. connecting rod; 415. limiting plate; 42. fixing assembly; 421. fixing frame; 422. connecting block; 423. slot; 424. connecting frame; 425. guide rod; 426. pull plate; 427. connecting plate; 428. first spring; 429. fixing block; 4211. fixing groove; 5. buffer mechanism; 51. telescopic rod; 52. buffer block; 53. first limiting ring; 54. second limiting ring; 55. second spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The utility model provides the following technical solutions:

[0032] Embodiment 1

[0033] See also Figure 1-7 The utility model provides a technical solution: a foldable low-altitude flying drone, comprising a drone body 1 and a second wing 3, the first wing 2 is fixedly connected to the left and right sides of the drone body 1, a folding mechanism 4 is arranged inside the second wing 3, and a buffer mechanism 5 is arranged at the bottom of the drone body 1;

[0034] The folding mechanism 4 includes a flip assembly 41 and a fixing assembly 42, wherein the flip assembly 41 is arranged on the left side of the second wing 3, and the fixing assembly 42 is arranged on the bottom of the second wing 3;

[0035] The flip assembly 41 includes a first fixed plate 411 and a second fixed plate 413. The first fixed plate 411 is fixedly connected to the left side of the second wing 3, and the second fixed plate 413 is fixedly connected to the right side of the first wing 2. A connecting groove 412 is provided on the left side of the first fixed plate 411, and a connecting rod 414 is fixedly connected to the front and rear sides of the second fixed plate 413 near the right end. A limiting plate 415 is fixedly connected to the bottom of the second wing 3.

[0036] The right end of the second fixing plate 413 is inserted into the connecting groove 412 , and the other end of the connecting rod 414 is rotatably connected to the connecting groove 412 .

[0037] The left side of the top of the limiting plate 415 is attached to the bottom of the second wing 3 .

[0038] The fixing assembly 42 includes a fixing frame 421, which is fixedly connected to the bottom of the second wing 3, a connecting block 422 is fixedly connected to the bottom of the first wing 2, a slot 423 is provided at the bottom of the connecting block 422, a connecting frame 424 is fixedly connected to the left side of the connecting block 422, a guide rod 425 is slidably connected to the left and right sides of the connecting frame 424, a pull plate 426 is fixedly connected to the left end of the guide rod 425, a connecting plate 427 is fixedly connected to the right end of the guide rod 425, a first spring 428 is symmetrically fixedly connected to the left side of the connecting plate 427, a fixing block 429 is fixedly connected to the right side of the connecting plate 427, and a right fixing groove 4211 is provided on the left side of the fixing frame 421 corresponding to the right end of the fixing block 429.

[0039] The width of the fixing slot 4211 is greater than the width of the left end of the fixing frame 421 . The right end of the guide rod 425 extends into the connecting frame 424 . The left end of the first spring 428 is fixedly connected to the left side of the connecting frame 424 .

[0040] A groove corresponding to the sliding block is formed on the left side of the connecting block 422, and the surface of the fixing block 429 is slidably connected in the groove.

[0041] Embodiment 2

[0042] See also Figure 8 , and on the basis of the first embodiment, a buffer mechanism 5 is further obtained.

[0043] The buffer mechanism 5 includes a telescopic rod 51, which is fixedly connected to the left side of the bottom of the drone body 1 in a front-to-back symmetrical manner. A buffer block 52 is fixedly connected to the bottom end of the telescopic rod 51, a first limiting ring 53 is fixedly connected to the surface of the telescopic rod 51 near the top, a second limiting ring 54 is fixedly connected to the surface of the telescopic rod 51 near the bottom, and a second spring 55 is sleeved between the first limiting ring 53 and the second limiting ring 54 on the surface of the telescopic rod 51.

[0044] The bottom end of the second spring 55 is fixedly connected to the top of the second limiting ring 54 , and the top end of the second spring 55 is fixedly connected to the bottom of the first limiting ring 53 . The buffer mechanism 5 has two groups and is symmetrically arranged at the bottom of the drone body 1 .

[0045] In actual operation, when the device is used, the pull plate 426 is pulled to make one end of the fixing block 429 in the slot 423 enter the fixing slot 4211, and then the second wing 3 is flipped over to fold the second wing 3 with the first wing 2. The folded drone body 1 can save space when stored. When the drone body 1 is used, the second wing 3 is flipped over in the opposite direction, and the limiting plate 415 limits the second wing 3 so that the second wing 3 and the first wing 2 are completely in a horizontal state. The left end of the fixing frame 421 will be inserted into the slot 423, and then the pull plate 426 is released. The fixing block 429 will move into the slot 423 through the elastic force of the first spring 428, so that the fixing block 429 is inserted into the fixing slot 4211, and the fixing frame 421 is fixed, thereby fixing the second wing 3.

[0046] When the drone body 1 lands, the buffer block 52 will contact the ground, and the buffer block 52 will drive the telescopic rod 51 to extend and retract. At the same time, the second limit block will move upward to squeeze the second spring 55. The elastic force of the second spring 55 can offset the impact force generated when the buffer block 52 contacts the ground, thereby protecting the drone body 1.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A foldable low-altitude flying drone, comprising a drone body (1) and a second wing (3), characterized in that: The first wings (2) are fixedly connected to the left and right sides of the drone body (1); a folding mechanism (4) is provided inside the second wing (3); and a buffer mechanism (5) is provided at the bottom of the drone body (1); The folding mechanism (4) comprises a flipping assembly (41) and a fixing assembly (42), wherein the flipping assembly (41) is arranged on the left side of the second wing (3), and the fixing assembly (42) is arranged on the bottom of the second wing (3); The flip assembly (41) comprises a first fixing plate (411) and a second fixing plate (413), wherein the first fixing plate (411) is fixedly connected to the left side of the second wing (3), and the second fixing plate (413) is fixedly connected to the right side of the first wing (2). A connecting groove (412) is provided on the left side of the first fixing plate (411), connecting rods (414) are fixedly connected to the front and rear sides of the second fixing plate (413) near the right end, and a limiting plate (415) is fixedly connected to the bottom of the second wing (3).

2. A foldable low-altitude flying drone according to claim 1, characterized in that: The right end of the second fixing plate (413) is inserted into the connecting groove (412), and the other end of the connecting rod (414) is rotatably connected to the connecting groove (412).

3. The foldable low-altitude flying drone according to claim 1, characterized in that: The left side of the top of the limiting plate (415) is attached to the bottom of the second wing (3).

4. The foldable low-altitude flying drone according to claim 1, characterized in that: The fixing assembly (42) comprises a fixing frame (421), wherein the fixing frame (421) is fixedly connected to the bottom of the second wing (3); a connecting block (422) is fixedly connected to the bottom of the first wing (2); a slot (423) is provided at the bottom of the connecting block (422); a connecting frame (424) is fixedly connected to the left side of the connecting block (422); a guide rod (425) is slidably connected to the left and right side of the connecting frame (424); a pull plate (426) is fixedly connected to the left end of the guide rod (425); a connecting plate (427) is fixedly connected to the right end of the guide rod (425); a first spring (428) is fixedly connected to the left side of the connecting plate (427) symmetrically in front and back; a fixing block (429) is fixedly connected to the right side of the connecting plate (427); and a right fixing slot (4211) is provided on the left side of the fixing frame (421) corresponding to the right end of the fixing block (429).

5. A foldable low-altitude flying drone according to claim 4, characterized in that: The width of the fixing groove (4211) is greater than the width of the left end of the fixing frame (421), the right end of the guide rod (425) extends into the connecting frame (424), and the left end of the first spring (428) is fixedly connected to the left side of the connecting frame (424).

6. The foldable low-altitude flying drone according to claim 4, characterized in that: The left side of the connection block (422) is provided with a groove corresponding to the direction of the sliding block, and the surface of the fixing block (429) is slidably connected in the groove.

7. The foldable low-altitude flying drone according to claim 1, characterized in that: The buffer mechanism (5) comprises a telescopic rod (51), the telescopic rod (51) being fixedly connected to the left side of the bottom of the drone body (1) in a front-to-back symmetrical manner, a buffer block (52) being fixedly connected to the bottom end of the telescopic rod (51), a first limiting ring (53) being fixedly connected to the surface of the telescopic rod (51) near the top end, a second limiting ring (54) being fixedly connected to the surface of the telescopic rod (51) near the bottom end, and a second spring (55) being sleeved between the first limiting ring (53) and the second limiting ring (54) on the surface of the telescopic rod (51).

8. The foldable low-altitude flying drone according to claim 7, characterized in that: The bottom end of the second spring (55) is fixedly connected to the top of the second limiting ring (54), and the top end of the second spring (55) is fixedly connected to the bottom of the first limiting ring (53). The buffer mechanism (5) has two groups and is symmetrically arranged at the bottom of the drone body (1).

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