Parachute device for unmanned aerial vehicle

Abstract

The parachute device for the unmanned aerial vehicle relates to the technical field of unmanned aerial vehicle landing and comprises the unmanned aerial vehicle, a first shell is fixedly connected to the top of the unmanned aerial vehicle, a connecting piece is hinged to the outer wall of the first shell, a clamping block is fixedly connected to the side, close to the first shell, of the connecting piece, a second shell is arranged on one side of the first shell, and a clamping groove is formed in the outer wall of the second shell. Clamping blocks are clamped in the clamping grooves, connecting grooves are formed in the top of the unmanned aerial vehicle, supporting blocks are connected in the connecting grooves, and the number of the connecting grooves and the number of the supporting blocks are two. When the second supporting plate makes contact with the ground, gas in the connecting pipe is extruded through the connecting block, the gas in the connecting pipe serves as a buffer memory to reduce vibration of the ground to the unmanned aerial vehicle, the purpose of protecting the unmanned aerial vehicle is achieved, and the unmanned aerial vehicle is prevented from being damaged due to too high speed reduction caused by environmental influence; the connecting line and the parachute can be effectively prevented from being knotted, and the problem that the parachute cannot be opened as required is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle landing, in particular to a parachute device for an unmanned aerial vehicle. Background Art

[0002] The parachute device for drones is an emergency recovery system designed to reduce the impact force of the drone on the ground when it crashes by opening the parachute when the drone loses control or encounters other emergency situations, prevent damage to people or objects on the ground, and protect the drone from being destroyed. This device usually includes a parachute and a detection system. The detection system uses sensors such as accelerometers and gyroscopes to determine whether the drone has abnormal conditions, such as low battery, loss of control, or other dangerous conditions. Once an abnormal condition is detected, the detection system will trigger the opening mechanism of the parachute. When the drone loses control or is about to crash, the parachute will quickly open in a very short time to provide resistance for the drone, slow down its descent speed, and thus reduce the impact force on the ground;

[0003] After searching, the utility model with the announcement number CN211766330U discloses a parachute device for drones. Although the utility model patent solves the problem that the parachute cannot be put into the ejection barrel in the prior art and cannot be used repeatedly, it can also make the parachute rush out of the ejection barrel faster; however,

[0004] First, the utility model patent lacks the function of neatly storing the parachute when it is retracted, so the parachute is easily tangled when it is opened again, affecting the normal ejection and use of the parachute;

[0005] Second, when the drone decelerates to land, the drone is still at risk of damage at the moment it touches the ground due to the influence of the ambient wind speed. This utility model patent lacks a shock-absorbing function and has low practicality.

[0006] Therefore, a parachute device for a drone is proposed. Utility Model Content

[0007] In view of this, the utility model provides a parachute device for a drone to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0008] The technical solution of the utility model is achieved as follows: a parachute device for a drone, comprising a drone, a shell one is fixedly connected to the top of the drone, a connecting piece is hinged on the outer wall of the shell one, a clamping block is fixedly connected to the side of the connecting piece close to the shell one, a shell two is provided on one side of the shell one, a clamping groove is provided on the outer wall of the shell two, a clamping block is clamped in the clamping groove, a connecting groove is provided on the top of the drone, a support block is connected in the connecting groove, two groups of the connecting grooves and the support blocks are provided, a telescopic rod and a spring one are fixedly connected between the two support blocks, a support frame is fixedly connected to the side of the support block close to the telescopic rod and the spring one, a connecting wire is fixedly connected to the outer side of the support block, and a parachute is fixedly connected to the end of the connecting wire away from the support block.

[0009] Further preferably, a support plate 1 is fixedly connected to the bottom of the drone, a lower surface of the support plate is fixedly connected to a shell 3, a connecting rod 1 is hinged in the shell 3, one end of the connecting rod 1 is hinged to a connecting rod 2, one end of the connecting rod 2 is hinged to a shell 4, a support plate 2 is fixedly connected to the bottom of the shell 4, a connecting block is fixedly connected to the support plate 2 and the side of the support plate 1 close to the connecting rod 1, a damping spring is fixedly connected between the two connecting blocks, a connecting tube is slidably connected to the outer wall of the connecting block, the connecting block is tightly attached to the connecting tube, a shell 5 is fixedly connected to one side of the connecting tube, a slider is slidably connected to the shell 5, the slider is hinged to the connecting rod 1, and the slider slides in the shell 5.

[0010] Further preferably, the outer walls of the shell 1 and the shell 2 are provided with through holes, the number of the through holes is multiple, and the multiple through holes are evenly distributed. The multiple through holes facilitate gas to enter between the shell 1 and the shell 2 to open the parachute.

[0011] Further preferably, the shell 3, connecting rod 1, connecting rod 2 and shell 4 are provided in two groups, and the two groups of the shell 3, connecting rod 1, connecting rod 2 and shell 4 are located on both sides of the connecting pipe. The two groups of the shell 3, connecting rod 1, connecting rod 2 and shell 4 have better support and buffering effects on the drone when the drone lands suddenly.

[0012] Further preferably, the support frame and the support block are in an "L" shape.

[0013] Further preferably, the connecting piece, the card block and the card slot are provided in two groups, and the two groups of the connecting piece, the card block and the card slot are located on both sides of the housing 1 and the housing 2. The connection effect of the two groups of the connecting piece, the card block and the card slot on the housing 2 is more stable.

[0014] Further preferably, two springs are provided, and the two springs are located at the upper and lower sides of the telescopic rod. The support of the two springs to the support block is more stable.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. In the utility model, when the support plate 2 contacts the ground, the distance between the support plate 1 and the support plate 2 is reduced, and the connecting rod 1 and the connecting rod 2 swing accordingly with the cooperation of the shell 3 and the shell 4. During the swinging process of the connecting rod 1 and the connecting rod 2, the connecting rod 1 drives the slider to slide toward the two ends of the shell 5 in the shell 5, and at the same time, the two connecting blocks slide in the connecting pipe at the same time, and the gas in the connecting pipe is squeezed by the connecting block. The gas in the connecting pipe acts as a buffer to reduce the vibration of the ground to the drone, thereby achieving the purpose of protecting the drone and preventing the drone from being damaged by excessive deceleration due to the influence of the environment;

[0017] 2. When the utility model needs to retract the parachute and the support frame into the shell one and the shell two, the operator takes out the support block from the connecting groove, holds the middle part of the telescopic rod to wind the connecting line and the parachute onto the two support frames, squeezes the two support blocks according to the spacing between the two connecting grooves, and inserts the support blocks into the connecting grooves, which effectively prevents the connecting line and the parachute from getting tangled and prevents the parachute from failing to open as required.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0021] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the local structure of the utility model Figure 1 ;

[0023] Figure 4 It is a schematic diagram of the local structure of the utility model Figure 2 .

[0024] Figure numerals: 1, drone; 2, shell one; 301, connecting plate; 302, card block; 4, shell two; 5, card slot; 6, connecting slot; 7, support block; 8, telescopic rod; 9, spring one; 10, connecting line; 11, parachute; 12, support frame; 13, through hole; 14, support plate one; 15, shell three; 16, connecting rod one; 17, connecting rod two; 18, shell four; 19, support plate two; 20, connecting block; 21, connecting pipe; 22, shell five; 23, slider; 24, damping spring. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, an embodiment of the utility model provides a parachute device for a drone: comprising a drone 1, a shell 2 is fixedly connected to the top of the drone 1, a connecting piece 301 is hinged on the outer wall of the shell 2, a clamping block 302 is fixedly connected to the side of the connecting piece 301 close to the shell 2, a shell 2 4 is provided on one side of the shell 2, a clamping slot 5 is provided on the outer wall of the shell 24, the clamping block 302 is clamped in the clamping slot 5, a connecting slot 6 is provided on the top of the drone 1, a supporting block 7 is connected in the connecting slot 6, two groups of connecting slots 6 and supporting blocks 7 are provided, a telescopic rod 8 and a spring 9 are fixedly connected between the two supporting blocks 7, a supporting frame 12 is fixedly connected to the side of the supporting block 7 close to the telescopic rod 8 and the spring 9, a connecting wire 10 is fixedly connected to the outer side of the supporting block 7, and a parachute 11 is fixedly connected to the end of the connecting wire 10 away from the supporting block 7.

[0028] In one embodiment, a support plate 14 is fixedly connected to the bottom of the drone 1, a shell 3 15 is fixedly connected to the lower surface of the support plate 14, a connecting rod 16 is hinged in the shell 3 15, a connecting rod 2 17 is hinged at one end of the connecting rod 16, a shell 4 18 is hinged at one end of the connecting rod 2 17, a support plate 29 is fixedly connected to the bottom of the shell 4 18, a connecting block 20 is fixedly connected to the support plate 29 and the side of the support plate 14 close to the connecting rod 16, a damping spring 24 is fixedly connected between the two connecting blocks 20, a connecting pipe 21 is slidably connected to the outer wall of the connecting block 20, a shell 5 22 is fixedly connected to the connecting block 20 and the connecting pipe 21 close to the side of the connecting pipe 21, a slider 23 is slidably connected in the shell 5 22, the slider 23 is hinged to the connecting rod 16, and the slider 23 slides in the shell 5 22.

[0029] In one embodiment, the outer walls of the shell 1 2 and the shell 2 4 are provided with through holes 13, and the number of through holes 13 is multiple and the multiple through holes 13 are evenly distributed. The multiple through holes 13 facilitate gas to enter between the shell 1 2 and the shell 2 4 to open the parachute 11.

[0030] In one embodiment, two groups of shell three 15, connecting rod one 16, connecting rod two 17 and shell four 18 are provided, and the two groups of shell three 15, connecting rod one 16, connecting rod two 17 and shell four 18 are located on both sides of the connecting pipe 21. The two groups of shell three 15, connecting rod one 16, connecting rod two 17 and shell four 18 have better support and buffering effects on the drone 1 when the drone 1 descends sharply.

[0031] In one embodiment, the support frame 12 and the support block 7 are in an "L" shape. Two groups of connecting pieces 301, card blocks 302 and card slots 5 are provided, and the two groups of connecting pieces 301, card blocks 302 and card slots 5 are located on both sides of the housing 1 2 and the housing 2 4. The two groups of connecting pieces 301, card blocks 302 and card slots 5 have a more stable connection effect on the housing 2 4. Two springs 1 9 are provided, and the two springs 1 9 are located on the upper and lower sides of the telescopic rod 8. The two springs 1 9 support the support block 7 more stably.

[0032] When the utility model is working: when the speed of the drone 1 is too high and the airflow around the shell 1 2 and the shell 2 4 is strong, the air enters between the shell 1 2 and the shell 2 4 through the through hole 13, and the gas entering the through hole 13 blows the connecting line 10 and the parachute 11 out of the shell 1 2 and the shell 2 4, thereby opening the parachute 11, that is, the flight speed of the drone 1 is limited. During normal flight and slow landing, the airflow speed around the drone 1 is relatively low, and the airflow direction is relatively stable. In this case, when the drone 1 is flying horizontally normally, the wind enters between the shell 1 2 and the shell 2 4 from the through hole 13, and then from the opposite through hole 13. The airflow through the through hole 13 is not enough to open the parachute 11. When the drone 1 descends rapidly, the airflow speed entering the through hole 13 increases significantly due to the increase in speed and the turbulence of the airflow. As the landing height gradually approaches the ground, the landing speed is greater and the wind speed is higher. At this time, the power of the airflow is enough to blow the parachute 11 open, thereby achieving speed reduction buffering. The opened parachute 11 can effectively slow down the landing speed of the drone 1. When the support plate 2 19 contacts the ground, the distance between the support plate 1 14 and the support plate 2 19 decreases. Since the shell 3 15 is fixedly connected to the support plate 1 14 and the shell 4 18 is fixedly connected to the support plate 2 19 When the connecting rod 1 16 and the connecting rod 2 17 are connected, the connecting rod 1 16 and the connecting rod 2 17 swing in accordance with the cooperation of the shell 3 15 and the shell 4 18. During the swinging process of the connecting rod 1 16 and the connecting rod 2 17, since the slider 23 and the connecting rod 1 16 are hinged, the connecting rod 1 16 drives the slider 23 to slide in the shell 5 22 toward the two ends of the shell 5 22. At the same time, the two connecting blocks 20 slide in the connecting pipe 21 at the same time, and the gas in the connecting pipe 21 is squeezed by the connecting block 20. The gas in the connecting pipe 21 serves as a buffer, and the vibration of the ground to the drone 1 is reduced by the damping spring 24, so as to achieve the purpose of protecting the drone side and preventing the drone 1 from being degraded due to the influence of the environment. Too high a speed will cause damage; when the landing is completed and the parachute 11 and the support frame 12 need to be retracted into the shell 1 2 and the shell 2 4, the operator takes out the support block 7 from the connecting groove 6, holds the middle part of the telescopic rod 8 and winds the connecting line 10 and the parachute 11 around the two support frames 12, and does not wind them too tightly so that the airflow cannot blow the parachute 11 out. After winding, the two support blocks 7 are squeezed according to the spacing between the two connecting grooves 6, and the support block 7 is inserted into the connecting groove 6, and then the shell 2 4 is placed on the drone 1 according to the positions of the connecting piece 301, the card block 302 and the card slot 5, and the card block 302 is inserted into the card slot 5.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A parachute device for an unmanned aerial vehicle, characterized in that: The invention comprises an unmanned aerial vehicle (1), wherein the top of the unmanned aerial vehicle (1) is fixedly connected to a shell one (2), the outer wall of the shell one (2) is hinged with a connecting piece (301), a side of the connecting piece (301) close to the shell one (2) is fixedly connected to a clamping block (302), a shell two (4) is arranged on one side of the shell one (2), a clamping slot (5) is provided on the outer wall of the shell two (4), a clamping block (302) is clamped in the clamping slot (5), and a connecting slot (6) is provided on the top of the unmanned aerial vehicle (1), A support block (7) is connected inside the connection groove (6), and two groups of the connection groove (6) and the support block (7) are provided. A telescopic rod (8) and a spring (9) are fixedly connected between the two support blocks (7). A support frame (12) is fixedly connected to a side of the support block (7) close to the telescopic rod (8) and the spring (9). A connecting wire (10) is fixedly connected to the outside of the support block (7), and a parachute (11) is fixedly connected to one end of the connecting wire (10) away from the support block (7).

2. A parachute device for a drone according to claim 1, characterized in that: The bottom of the drone (1) is fixedly connected to a support plate 1 (14), the lower surface of the support plate 1 (14) is fixedly connected to a shell 3 (15), a connecting rod 1 (16) is hinged inside the shell 3 (15), one end of the connecting rod 1 (16) is hinged to a connecting rod 2 (17), one end of the connecting rod 2 (17) is hinged to a shell 4 (18), the bottom of the shell 4 (18) is fixedly connected to a support plate 2 (19), the support plate 2 (19) and the support plate 1 (14) are A connecting block (20) is fixedly connected to one side close to the connecting rod one (16), a damping spring (24) is fixedly connected between the two connecting blocks (20), a connecting tube (21) is slidably connected to the outer wall of the connecting block (20), a shell five (22) is fixedly connected to one side of the connecting tube (21), a slider (23) is slidably connected inside the shell five (22), the slider (23) is hinged to the connecting rod one (16), and the slider (23) slides inside the shell five (22).

3. The parachute device for a drone according to claim 1, characterized in that: The outer walls of the shell 1 (2) and the shell 2 (4) are provided with through holes (13), and the number of the through holes (13) is multiple, and the multiple through holes (13) are evenly distributed.

4. A parachute device for an unmanned aerial vehicle according to claim 2, characterized in that: The shell three (15), the connecting rod one (16), the connecting rod two (17) and the shell four (18) are provided in two groups, and the two groups of the shell three (15), the connecting rod one (16), the connecting rod two (17) and the shell four (18) are located on both sides of the connecting pipe (21).

5. The parachute device for an unmanned aerial vehicle according to claim 1, characterized in that: The support frame (12) and the support block (7) are in an "L" shape.

6. The parachute device for an unmanned aerial vehicle according to claim 1, characterized in that: The connecting piece (301), the card block (302) and the card slot (5) are provided in two groups, and the two groups of the connecting piece (301), the card block (302) and the card slot (5) are located on both sides of the shell one (2) and the shell two (4).

7. The parachute device for an unmanned aerial vehicle according to claim 1, characterized in that: The spring one (9) is provided with two, and the two springs one (9) are located at the upper and lower sides of the telescopic rod (8).

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