Damping type unmanned aerial vehicle safe landing device

Abstract

The invention is suitable for the technical field of unmanned aerial vehicles, and provides a damping type unmanned aerial vehicle safe landing device which comprises a bearing plate, a supporting frame is fixedly connected to the lower end of the bearing plate, a lower sliding groove is formed in the supporting frame, and two symmetrically-distributed lower sliding seats are slidably connected to the inner wall of the lower sliding groove; a shock absorber is fixedly arranged between the middles of the two lower sliding seats, a first reset assembly is further arranged on the linkage assembly in a matched mode, two upper bases symmetrically distributed about the supporting frame are fixedly connected to the lower end of the bearing plate, first rotating plates are rotationally connected to the upper bases, and opening grooves are formed in the first rotating plates; a second rotating plate is rotationally connected between the inner wall of the opening groove and the lower sliding seat, and the lower end of the first rotating plate is fixedly connected with an abutting rod. Wherein one lower sliding seat is further provided with a limiting assembly, and the limiting assembly is provided with a second reset assembly in a matched mode. The damping device has the advantage of effectively damping the landing process of the unmanned aerial vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a shock-absorbing type safe landing device for unmanned aerial vehicles. Background Art

[0002] Unmanned aircraft, commonly known as drones or UAVs, are broadly defined as various remote-controlled aircraft that do not require a pilot to board and fly. They generally refer specifically to military unmanned reconnaissance aircraft. With the development of the times, drones have been widely used in commercial applications.

[0003] Most of the current drone landing gear does not have a vibration reduction function, which can easily cause the descent speed to be too fast during landing, resulting in a large rigid impact on the fuselage caused by the ground, which will damage the landing gear and the drone in the long run.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a shock-absorbing UAV safe landing device to overcome the shortcomings in current practical applications. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a shock-absorbing drone safety landing device, aiming to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A shock-absorbing type drone safe landing device comprises a receiving plate, the upper end of the receiving plate is fixedly connected to a drone, the lower end of the receiving plate is fixedly connected to a support frame, a sliding groove is provided on the support frame, the inner wall of the sliding groove is slidably connected to two symmetrically distributed lower slide seats, a linkage component is cooperatively arranged between the upper ends of the two lower slide seats, the two lower slide seats are controlled to move synchronously by the linkage component, a shock absorber is fixedly arranged between the middle parts of the two lower slide seats, and a first reset component is also cooperatively arranged on the linkage component, and the two lower slide seats are driven by the linkage component and the first reset component in cooperation with each other. The two lower seats are close to each other; the lower ends of the supporting plate are fixedly connected to two upper bases symmetrically distributed about the support frame, and the upper bases are rotatably connected to the first rotating plates, and the multiple first rotating plates correspond to the lower seats one by one. The first rotating plates are all provided with open grooves, and the second rotating plates are rotatably connected between the inner walls of the open grooves and the lower seats, and the lower ends of the first rotating plates are fixedly connected to abutment rods; a limiting component is also provided on one of the lower seats, and the limiting component limits the reciprocating movement of the two lower seats under the action of the shock absorber, and the limiting component is cooperated with a second reset component.

[0007] According to a further technical solution, a reinforcing plate is fixedly connected to the support frame.

[0008] According to a further technical solution, the lower slide seat and the lower slide groove are both in a cross-shaped structure.

[0009] A further technical solution is that the linkage assembly includes a fixed rod, a third rotating plate and a fourth rotating plate; the lower end surface of the supporting plate is fixedly connected to the fixed rod, the outer wall of the fixed rod is rotatably connected to the third rotating plate, the two ends of the third rotating plate are respectively rotatably connected to the fourth rotating plates, and the fourth rotating plates are respectively rotatably connected to the corresponding lower sliding seats.

[0010] A further technical solution is that the first reset assembly includes a first electric telescopic rod and an abutment joint; the first electric telescopic rod is fixedly connected to the lower end surface of the receiving plate, and the driving end of the first electric telescopic rod is fixedly connected to the abutment joint, and when it is necessary to control the two lower slides to approach each other, the abutment joint abuts the third rotating plate. A further technical solution is that the limit assembly includes a limit plate, a placement slot, a slider, a clamp, a clamping slot and a spring; the support frame is fixedly connected to the limit plate, and a plurality of evenly distributed clamping slots are provided on the side of the limit plate close to the lower slide; one of the lower slides is provided with a placement slot, and the inner wall of the placement slot is slidably connected to a slider, and a spring is provided between the slider and the inner wall of the placement slot, and the other end of the slider is fixedly connected to a clamping head, and during the landing of the drone, the clamping head clamps the clamping slot.

[0011] According to a further technical solution, the card slot and the card head are both pentahedral in shape with the bottom and top surfaces being right triangles and the side surfaces being rectangular.

[0012] A further technical solution is that the second reset assembly includes a support plate, a return plate and a second electric telescopic rod; the support plate is fixedly connected to the side of the slider; the second electric telescopic rod is fixedly connected to the side of the lower sliding seat with a placement groove, the driving end of the second electric telescopic rod is fixedly connected to the return plate, and the inner wall of the return plate is slidably connected to the support plate.

[0013] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects: 1. The two first rotating plates are driven by the abutting rod to rotate away from each other around the upper base, and then the two corresponding lower slide seats are driven away from each other by the two second rotating plates. Then the two lower slide seats drive the two ends of the shock absorber to move, and the shock absorber is used to reduce the shock of the two lower slide seats. At the same time, the linkage component is used to control the synchronous movement of the two lower slide seats, so as to reduce the shock of the UAV landing process, thereby protecting the UAV and related equipment; 2. The card slot and the card head are cooperated to prevent the card head from sliding in the opposite direction along the limit plate, so that during the landing of the drone, the two lower slide seats can only move away from each other but cannot move closer to each other, thereby preventing the shock absorber from causing the lower slide seat to slide repeatedly along the inner wall of the lower slide slot, thereby effectively preventing the first rotating plate from swinging repeatedly around the upper base, so that the drone can land safely and stably; 3. The second reset component releases the restriction of the limit component on the lower slide seat, so that the clamping head is separated from the clamping slot, so that the two lower slide seats can approach each other, and then the shock absorber is driven to reset by cooperating with the linkage component and the first reset component.

[0014] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a bottom-up three-dimensional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention after removing the receiving plate; Figure 4 For the present invention Figure 3 Schematic diagram of the three-dimensional structure after removing the reinforcement plate; Figure 5 For the present invention Figure 4 Schematic diagram of the three-dimensional structure of the middle part; Figure 6 It is a schematic diagram of the three-dimensional structure of the second reset component part of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of a cross-sectional three-dimensional structure; Figure 8 It is a schematic diagram of the three-dimensional structure of the present invention cooperating with a drone.

[0016] In the figure: 1. receiving plate; 2. upper base; 3. first rotating plate; 4. abutment rod; 5. opening groove; 6. second rotating plate; 7. lower sliding seat; 8. support frame; 9. reinforcement plate; 10. sliding groove; 11. linkage assembly; 1101. fixing rod; 1102. third rotating plate; 1103. fourth rotating plate; 12. first reset assembly; 1201. first electric telescopic rod; 1202. abutment joint; 13. limiting assembly; 1301. limiting plate; 1302. placement groove; 1303. slider; 1304. clamping head; 1305. clamping slot; 1306. spring; 14. second reset assembly; 1401. support plate; 1402. return plate; 1403. second electric telescopic rod; 15. shock absorber; 16. drone. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0019] like Figure 1-8 As shown, an embodiment of the present invention provides a shock-absorbing type UAV safe landing device, including a receiving plate 1, a UAV 16 is fixedly connected to the upper end of the receiving plate 1, a support frame 8 is fixedly connected to the lower end of the receiving plate 1, a sliding groove 10 is provided on the support frame 8, and two symmetrically distributed lower slide seats 7 are slidably connected to the inner wall of the sliding groove 10, a linkage component 11 is arranged between the upper ends of the two lower slide seats 7, and the two lower slide seats 7 are controlled to move synchronously by the linkage component 11, a shock absorber 15 is fixedly arranged between the middle parts of the two lower slide seats 7, and a first reset component 12 is also arranged on the linkage component 11, and the two lower slide seats 7 are driven to move mutually by the linkage component 11 and the first reset component 12. Close; the lower end of the receiving plate 1 is fixedly connected to two upper bases 2 symmetrically distributed about the support frame 8, the upper bases 2 are rotatably connected to the first rotating plates 3, and multiple first rotating plates 3 correspond to the lower sliding seats 7 one by one. The first rotating plates 3 are each provided with an open groove 5, and a second rotating plate 6 is rotatably connected between the inner wall of the open groove 5 and the lower sliding seat 7, and the lower end of the first rotating plate 3 is fixedly connected to abutment rods 4; a limiting component 13 is also provided on one of the lower sliding seats 7, and the limiting component 13 limits the reciprocating movement of the two lower sliding seats 7 under the action of the shock absorber 15, and the limiting component 13 is cooperated with a second reset component 14, and the second reset component 14 is used to release the restriction of the limiting component 13 on the lower sliding seat 7.

[0020] Furthermore, a reinforcing plate 9 is fixedly connected to the support frame 8 , and the reinforcing plate 9 is used to increase the strength and stability of the support frame 8 .

[0021] Furthermore, the lower sliding seat 7 and the lower sliding groove 10 are both in a cross-shaped structure.

[0022] like Figure 3 , Figure 4 and Figure 5 As shown, the linkage assembly 11 includes a fixed rod 1101, a third rotating plate 1102 and a fourth rotating plate 1103; the lower end surface of the receiving plate 1 is fixedly connected with the fixed rod 1101, the outer wall of the fixed rod 1101 is rotatably connected with the third rotating plate 1102, the two ends of the third rotating plate 1102 are respectively rotatably connected with the fourth rotating plate 1103, and the fourth rotating plate 1103 is respectively rotatably connected to the corresponding lower sliding seat 7.

[0023] Specifically, when the drone 16 lands and touches the ground, the contact rod 4 drives the first rotating plate 3 to rotate around the upper base 2, and the two contact rods 4 move away from each other, and then the contact rod 4 drives the two lower slide seats 7 to move away from each other through the second rotating plate 6, and then the lower slide seats 7 respectively drive the corresponding fourth rotating plates 1103 to move, and then the fourth rotating plate 1103 drives the third rotating plate 1102 to rotate around the fixed rod 1101, and at the same time, the third rotating plate 1102 limits the distance between the two lower slide seats 7 and the fixed rod 1101 to be the same through the fourth rotating plate 1103. Figure 2 , Figure 3 and Figure 4 As shown, the first reset assembly 12 includes a first electric telescopic rod 1201 and a butt joint 1202; the first electric telescopic rod 1201 is fixedly connected to the lower end surface of the receiving plate 1, and the driving end of the first electric telescopic rod 1201 is fixedly connected to the butt joint 1202. When it is necessary to control the two lower sliding seats 7 to approach each other, the butt joint 1202 abuts against the third rotating plate 1102.

[0024] Specifically, after the drone 16 completes landing, the first electric telescopic rod 1201 extends, and then the first electric telescopic rod 1201 pushes the abutment joint 1202 to move, and then the abutment joint 1202 drives the third rotating plate 1102 to rotate counterclockwise around the fixed rod 1101, and then the third rotating plate 1102 drives the two lower slide seats 7 to approach each other through the fourth rotating plate 1103, and then the lower slide seats 7 drive the two first rotating plates 3 to rotate close to each other through the second rotating plate 6, so that the first rotating plate 3, the abutment rod 4 and the shock absorber 15 are reset; when it is necessary to place cargo on the drone 16, the abutment joint 1202 abuts against the third rotating plate 1102, thereby preventing the third rotating plate 1102 from rotating clockwise around the fixed rod 1101, thereby making the third rotating plate 1102 stationary, and then the lower slide seat 7 is driven to be stationary through the fourth rotating plate 1103, and then the first rotating plate 3 and the abutment rod 4 are driven to be stationary through the second rotating plate 6, so that the cargo can be placed stably. Figure 4-7 As shown, the limiting assembly 13 includes a limiting plate 1301, a placement slot 1302, a slider 1303, a clamping head 1304, a clamping slot 1305 and a spring 1306; the limiting plate 1301 is fixedly connected to the support frame 8, and a plurality of evenly distributed clamping slots 1305 are provided on the side of the limiting plate 1301 close to the lower sliding seat 7; a placement slot 1302 is provided on one of the lower sliding seats 7, and a slider 1303 is slidably connected to the inner wall of the placement slot 1302, and a spring 1306 is provided between the slider 1303 and the inner wall of the placement slot 1302, and the other end of the slider 1303 is fixedly connected to the clamping head 1304, and during the landing process of the UAV 16, the clamping head 1304 is clamped into the clamping slot 1305.

[0025] Furthermore, the clamping slot 1305 and the clamping head 1304 are both pentahedral in shape with the bottom and top surfaces being right triangles and the side surfaces being rectangular.

[0026] Specifically, the spring 1306 pushes the slider 1303 to slide along the inner wall of the placement groove 1302, and then the slider 1303 drives the clamping head 1304 to clamp the clamping slot 1305. When the drone 16 is landing, the two lower slide seats 7 move away from each other, thereby driving the clamping head 1304 to slide along the side of the limit plate 1301 with the clamping slot 1305. At the same time, the clamping head 1304 is prevented from sliding in the opposite direction along the side of the limit plate 1301 with the clamping slot 1305 through the cooperation of the clamping slot 1305 and the clamping head 1304, so that during the landing of the drone 16, the two lower slide seats 7 can only move away from each other but cannot approach each other, thereby preventing the shock absorber 15 from causing the lower slide seat 7 to slide repeatedly along the inner wall of the lower groove 10, thereby effectively preventing the first rotating plate 3 from swinging repeatedly around the upper base 2, so that the drone 16 can land safely and stably.

[0027] like Figure 5 and Figure 6 As shown, the second reset assembly 14 includes a support plate 1401, a return plate 1402 and a second electric telescopic rod 1403; the support plate 1401 is fixedly connected to the side of the slider 1303; the second electric telescopic rod 1403 is fixedly connected to the side of the lower sliding seat 7 with a placement groove 1302, and the driving end of the second electric telescopic rod 1403 is fixedly connected to the return plate 1402, and the inner wall of the return plate 1402 is slidably connected to the support plate 1401.

[0028] Specifically, after the unmanned safe landing is completed, the second electric telescopic rod 1403 is controlled to retract, and then the second electric telescopic rod 1403 drives the return plate 1402 to move, and then the return plate 1402 drives the slider 1303 to move through the support plate 1401, and then the slider 1303 drives the clamping head 1304 to disengage from the clamping slot 1305.

[0029] In the embodiment of the present invention, the two first rotating plates 3 are driven by the abutting rod 4 to rotate away from each other around the upper base 2, and then the two second rotating plates 6 are used to drive the corresponding two lower slide seats 7 to move away from each other, and then the two lower slide seats 7 drive the two ends of the shock absorber 15 to move, and the shock absorber 15 is used to dampen the two lower slide seats 7, and at the same time, the linkage assembly 11 is used to control the two lower slide seats 7 to move synchronously, so as to dampen the landing process of the drone 16, thereby protecting the drone 16 and related equipment; the card slot 1305 and the card head 1304 are cooperated to prevent the card head 1304 from sliding in the opposite direction along the limit plate 1301, so that During the landing of the drone 16, the two lower slide seats 7 can only move away from each other but cannot move closer to each other, thereby preventing the shock absorber 15 from causing the lower slide seat 7 to slide repeatedly along the inner wall of the lower slide groove 10, thereby effectively preventing the first rotating plate 3 from swinging repeatedly around the upper base 2, thereby allowing the drone 16 to land safely and stably; the restriction of the lower slide seat 7 by the limit assembly 13 is released by the second reset assembly 14, so that the clamping head 1304 is disengaged from the clamping groove 1305, so that the two lower slide seats 7 can move closer to each other, and then the shock absorber 15 is driven to reset by cooperating with the linkage assembly 11 and the first reset assembly 12.

[0030] The working principle of the present invention is as follows: during the landing of the UAV 16, the abutment rod 4 first contacts the ground, and then the abutment rod 4 drives the two first rotating plates 3 to rotate away from each other around the upper base 2, and then drives the corresponding two lower slide seats 7 to move away from each other through the two second rotating plates 6, and then the two lower slide seats 7 drive the two ends of the shock absorber 15 to move, and the shock absorber 15 is used to absorb the shock of the two lower slide seats 7, and at the same time, the linkage assembly 11 is used to control the synchronous movement of the two lower slide seats 7. During this process, the spring 1306 pushes the slider 1303 to slide along the inner wall of the placement groove 1302, and then the slider 1303 drives the clamping head 1304 to clamp the clamping slot 1305. When the UAV 16 is landing, the two lower slide seats 7 move away from each other, thereby driving the clamping head 1304 to slide along the side of the limit plate 1301 with the clamping slot 1305. At the same time, the cooperation between the clamping slot 1305 and the clamping head 1304 prevents the clamping head 1304 from sliding in the opposite direction along the side of the limit plate 1301 with the clamping slot 1305, thereby making the UAV 16 land properly. During the landing process, the two lower slide seats 7 can only move away from each other but cannot move closer to each other. After the drone 16 completes the landing, the first electric telescopic rod 1201 extends, and then the first electric telescopic rod 1201 pushes the abutment joint 1202 to move, and then the abutment joint 1202 drives the third rotating plate 1102 to rotate counterclockwise around the fixed rod 1101, and then the third rotating plate 1102 drives the two lower slide seats 7 to move closer to each other through the fourth rotating plate 1103, and then the lower slide seat 7 drives the two first rotating plates 3 to rotate closer to each other through the second rotating plate 6, so that the first rotating plate 3, the abutment rod 4 and the shock absorber 15 are reset; in addition, when it is necessary to place goods on the drone 16, the abutment joint 1202 abuts against the third rotating plate 1102, thereby preventing the third rotating plate 1102 from rotating clockwise around the fixed rod 1101, thereby making the third rotating plate 1102 stationary, and then the lower slide seat 7 is driven to move still through the fourth rotating plate 1103, and then the first rotating plate 3 and the abutment rod 4 are driven to move still through the second rotating plate 6, so that the goods can be placed stably.

[0031] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shock-absorbing drone safe landing device, comprising a receiving plate (1), a drone (16) being fixedly connected to the upper end of the receiving plate (1), characterized in that: The lower end of the receiving plate (1) is fixedly connected to a support frame (8), the support frame (8) is provided with a sliding groove (10), the inner wall of the sliding groove (10) is slidably connected to two symmetrically distributed lower seats (7), a linkage component (11) is arranged between the upper ends of the two lower seats (7), and the two lower seats (7) are controlled to move synchronously by the linkage component (11), a shock absorber (15) is fixedly arranged between the middle parts of the two lower seats (7), and a first reset component (12) is also arranged on the linkage component (11), and the two lower seats (7) are driven to approach each other by the linkage component (11) and the first reset component (12) cooperating with each other; the lower end of the receiving plate (1) is fixedly connected to Two upper bases (2) are symmetrically distributed about the support frame (8), and the upper bases (2) are rotatably connected to first rotating plates (3). A plurality of the first rotating plates (3) correspond to the lower sliding seats (7) one by one. The first rotating plates (3) are each provided with an opening groove (5), and a second rotating plate (6) is rotatably connected between the inner wall of the opening groove (5) and the lower sliding seat (7), and the lower end of the first rotating plate (3) is fixedly connected to an abutment rod (4); a limiting assembly (13) is also provided on one of the lower sliding seats (7), and the two lower sliding seats (7) are limited by the limiting assembly (13) to reciprocate under the action of a shock absorber (15), and a second reset assembly (14) is provided on the limiting assembly (13).

2. The shock-absorbing drone safety landing device according to claim 1 is characterized in that: A reinforcing plate (9) is fixedly connected to the support frame (8).

3. The shock-absorbing drone safety landing device according to claim 1 is characterized in that: The lower sliding seat (7) and the lower sliding groove (10) both have a cross-shaped structure.

4. The shock-absorbing drone safety landing device according to claim 1 is characterized in that: The linkage assembly (11) comprises a fixing rod (1101), a third rotating plate (1102) and a fourth rotating plate (1103); The lower end surface of the receiving plate (1) is fixedly connected to a fixing rod (1101), the outer wall of the fixing rod (1101) is rotatably connected to a third rotating plate (1102), both ends of the third rotating plate (1102) are respectively rotatably connected to fourth rotating plates (1103), and the fourth rotating plates (1103) are respectively rotatably connected to the corresponding lower sliding seats (7).

5. The shock-absorbing drone safety landing device according to claim 4 is characterized in that: The first resetting assembly (12) comprises a first electric telescopic rod (1201) and an abutment joint (1202); A first electric telescopic rod (1201) is fixedly connected to the lower end surface of the receiving plate (1), and a driving end of the first electric telescopic rod (1201) is fixedly connected to a butt joint (1202). When it is necessary to control the two lower sliding seats (7) to move closer to each other, the butt joint (1202) butts against the third rotating plate (1102).

6. The shock-absorbing drone safety landing device according to claim 1, characterized in that: The limiting assembly (13) comprises a limiting plate (1301), a placement slot (1302), a slider (1303), a clamping head (1304), a clamping slot (1305) and a spring (1306); A limit plate (1301) is fixedly connected to the support frame (8), and a plurality of evenly distributed slots (1305) are provided on the limit plate (1301) on one side close to the lower slide seat (7); a placement slot (1302) is provided on one of the lower slide seats (7), a slider (1303) is slidably connected to the inner wall of the placement slot (1302), a spring (1306) is provided between the slider (1303) and the inner wall of the placement slot (1302), and a clamping head (1304) is fixedly connected to the other end of the slider (1303), and during the landing process of the drone, the clamping head (1304) is clamped in the slot (1305).

7. The shock-absorbing drone safety landing device according to claim 6 is characterized in that: The clamping slot (1305) and the clamping head (1304) are both pentahedral in shape, with the bottom and top surfaces being right triangles and the side surfaces being rectangular.

8. The shock-absorbing drone safety landing device according to claim 7, characterized in that: The second reset assembly (14) comprises a support plate (1401), a return plate (1402) and a second electric telescopic rod (1403); the support plate (1401) is fixedly connected to the side of the slider (1303); A second electric telescopic rod (1403) is fixedly connected to the side of the lower sliding seat (7) having a placement groove (1302), a driving end of the second electric telescopic rod (1403) is fixedly connected to a return plate (1402), and an inner wall of the return plate (1402) is slidably connected to the support plate (1401).

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