Parachute fast unfolding safety device for low-altitude aircraft

Abstract

The invention relates to the technical field of low-altitude aircraft parachute unfolding devices, and discloses a low-altitude aircraft parachute fast unfolding safety device which comprises a base, a mounting cylinder, a first mounting plate and a parachute. A limiting mechanism; the limiting mechanism is arranged on the first mounting plate, and the limiting mechanism limits a connecting rope on the parachute through a supporting frame and a moving frame in the limiting mechanism; by arranging a limiting mechanism, when the parachute is unfolded, an inner gear ring rotates, a connecting rod drives a fixing column to be separated from a fixing hole in one side of a supporting frame, and a torsional spring arranged at the joint of the supporting frame and the mounting frame rebounds, so that the supporting frame anticlockwise rotates from the state parallel to the end face of the first mounting plate until one side of the supporting frame is blocked by the inner wall of a first opening; the supporting frame drives the connecting ropes in the supporting frame to adjust the angle until the clamping pieces on the moving frame are clamped on the corresponding clamping plates, so that the connecting ropes are opened, the connecting ropes can be better opened, the situation that the connecting ropes are wound is reduced, and the parachute can be opened faster.

Description

Technical Field

[0001] The invention relates to the technical field of low-altitude aircraft parachute deployment devices, in particular to a parachute quick deployment safety device for low-altitude aircraft. Background Art

[0002] Low-altitude aircraft are man-made aircraft. Aircraft are any flying objects made by humans, capable of taking off the ground, flying in space and controlled by humans for personal use. UAVs are a type of low-altitude aircraft. Small UAVs can pop out a parachute to assist landing when landing. The parachute is deployed by a deployment device fixed to the UAV:

[0003] A parachute safety device dedicated to low-altitude aircraft is disclosed in Chinese Patent Application No. 202411087206.2. This invention includes a shell, an altitude sensor is installed in the shell, a circumferentially evenly distributed parachute rope housing is fixed in the shell, and the circumferentially evenly distributed parachute rope housing is commonly fixed to the parachute located in the shell through the parachute rope, a symmetrically distributed cavity is provided on the shell, a rotating shaft is rotatably connected in the cavity of the shell, a first flexible rope is fixed and wound on the rotating shaft, the first flexible rope passes around the pulley block and is fixed with a weight, a symmetrically distributed electromagnetic block is fixed in the shell, and a symmetrically distributed limit frame is fixed in the shell. The present invention clamps and drives the parachute to be thrown out by the weight block, simulates the action of throwing a parachute by hand, speeds up the speed of the parachute opening, thereby increasing the buffering force when the low-altitude aircraft falls, and thus better protects the aircraft and human safety.

[0004] The parachute and the rope connecting the parachute of the current low-altitude aircraft parachute deployment device are directly installed inside the shell of the parachute deployment device, which is messy and inconvenient to install. In addition, the rope is easy to tangle when the parachute is deployed, which makes the deployment slow and affects the deployment speed of the parachute. Summary of the invention

[0005] The object of the present invention is to provide a parachute quick deployment safety device for low altitude aircraft to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A parachute quick deployment safety device for a low-altitude aircraft, comprising a base, a mounting tube, a first mounting plate and a parachute, wherein the base is fixedly mounted on the top of a drone fuselage by screws, the mounting tube is fixedly mounted on the top of the base by screws, the first mounting plate is fixedly mounted on the top of the mounting tube by screws, and the parachute is arranged above the mounting tube;

[0008] A limiting mechanism; the limiting mechanism is arranged on the first mounting plate, and the limiting mechanism limits the connecting rope on the parachute through the support frame and the moving frame therein;

[0009] A plurality of collecting mechanisms, wherein the collecting mechanisms are arranged at the bottom end of the inner wall of the mounting tube, and the collecting mechanisms collect the connecting ropes on the parachute through the collecting frames therein;

[0010] A plurality of auxiliary deployment mechanisms, wherein the auxiliary deployment mechanisms are arranged at the bottom end of the inner wall of the mounting tube, and the auxiliary deployment mechanisms assist the deployment of the parachute through the nozzles therein;

[0011] The limiting mechanism includes a mounting frame, a support frame, a slide groove, a moving frame, a mounting block, a baffle, several first springs, several rotating frames, rollers, a fixing hole, a first rotating groove, an inner gear ring, several connecting rods, a fixing column, a clamping piece and a clamping plate. The mounting frame is fixedly mounted on the top of the first mounting plate. The support frame is rotatably mounted on one side of the mounting frame by a torsion spring. The slide groove is opened on both sides of the support frame. The mounting block is fixedly mounted on both sides of the inner wall of the moving frame. The mounting block is slidably mounted on the corresponding slide groove wall. The moving frame is slidably mounted on the outer wall of the support frame through the mounting block inside it. The baffle is fixedly mounted on the inner wall of the moving frame. Several of the first springs are fixedly mounted on one side of the baffle. The other end of the first spring is fixedly mounted on one end of the support frame. Several of the rotating frames are respectively fixedly mounted on the support frame and the inner wall of the moving frame, and the roller is rotatably mounted on the outer wall of the rotating frame.

[0012] Optionally, the fixing hole is opened on one side of the support frame, the first rotating groove is opened on the top of the first mounting plate, the first rotating groove is annular, the bottom of the inner gear ring is rotatably installed on the wall of the first rotating groove, a plurality of connecting rods are fixedly installed on the outer wall of the inner gear ring, the fixing column is fixedly installed on one side of the connecting rod, the fixing column is engaged with the corresponding fixing hole, the clamping piece is fixedly installed on one side of the movable frame, the clamping plate is fixedly installed on the top of the first mounting plate, and the position of the clamping plate corresponds to that of the clamping piece, and the clamping piece is clamped with the corresponding clamping plate.

[0013] Optionally, a plurality of first openings are provided at the top of the first mounting plate, a second mounting plate is fixedly mounted on the top of the first mounting plate by screws, a second opening is provided at the top of the second mounting plate, the first openings correspond to the positions of the second openings, and the mounting frame is located corresponding to the first openings.

[0014] Optionally, a fixing frame is fixedly mounted on the top of the first mounting plate, a first motor is fixedly mounted on the top of the fixing frame, an output end of the first motor extends into the interior of the fixing frame, a gear is fixedly mounted on the output end of the first motor, and the gear meshes with teeth on the inner wall of the inner gear ring.

[0015] Optionally, the collection mechanism includes a plurality of collection frames, a rotating rod, a first bevel gear, a fixed cylinder, a connecting column, a second bevel gear and a knob, wherein the plurality of collection frames are fixedly mounted on the bottom end of the inner wall of the mounting cylinder, the rotating rod is rotatably mounted on two opposite sides of the inner wall of the collection frame, one end of the rotating rod extends to the outside of one side of the collection frame, the first bevel gear is fixedly mounted on an end of the rotating rod extending to the outside of the collection frame, the fixed cylinder is fixedly mounted at the top center of the first mounting plate, the connecting column is rotatably mounted on the inner wall of the fixed cylinder, the second bevel gear is fixedly mounted on the bottom end of the connecting column, the knob is fixedly mounted on the top end of the connecting column, the second bevel gear is meshed with the first bevel gear, and the collection frame is positioned corresponding to the first opening.

[0016] Optionally, one end of the connecting rope is fixedly mounted on the outer wall corresponding to the rotating rod, and the other end of the connecting rope passes through the support frame and the movable frame and extends to the outside of one side of the support frame, and the parachute is fixedly mounted on the end of the connecting rope extending to the outside of one side of the support frame.

[0017] Optionally, a second rotating groove is provided on the inner wall of the fixed cylinder, and the second rotating groove is annular. A mounting ring is rotatably installed on the groove wall of the second rotating groove, and a plurality of movable columns are fixedly installed on one end of the mounting ring. A plurality of movable grooves are provided on the outer wall of the connecting column, and the movable columns are slidably installed on the groove walls corresponding to the movable grooves. The connecting column is slidably installed on the movable column through the movable grooves thereon, and a plurality of second springs are fixedly installed on one end of the mounting ring, and the other end of the second spring is fixedly installed on the outer wall of the connecting column.

[0018] Optionally, a rotating frame is fixedly installed at the top edge of the second mounting plate, a rotating motor is fixedly installed at one side of the rotating frame, the output end of the rotating motor extends to the inside of the rotating frame, an upper cover is rotatably installed on the inner wall of the rotating frame, the upper cover is rotatably installed on the inner wall of the rotating frame through a protrusion on the outer wall, and the protrusion on the outer wall of the upper cover is fixedly installed on the output end of the rotating motor.

[0019] Optionally, the auxiliary deployment mechanism includes a plurality of fixed seats, a high-pressure gas tank, a fixing ring, a solenoid valve, a connecting pipe and a plurality of nozzles, wherein the plurality of fixed seats are fixedly installed on the bottom end of the inner wall of the mounting tube, the fixing ring is fixedly installed on the outer wall of the high-pressure gas tank, the high-pressure gas tank is arranged on the inner wall of the fixed seat, the fixing ring is fixedly installed on the top end of the fixed seat by screws, a plurality of brackets are fixedly installed on the inner wall of the mounting tube, the solenoid valve is fixedly installed on the corresponding brackets, a plurality of nozzles are fixedly installed on the top end of the first mounting plate, and the bottom end of the nozzle extends to the bottom of the first mounting plate, one end of the solenoid valve is connected to the corresponding high-pressure gas tank through a pipeline, the connecting pipe is fixedly installed on one end of the corresponding solenoid valve, and the other end of the connecting pipe is fixedly installed on the bottom end of the corresponding nozzle.

[0020] Optionally, a plurality of through holes are formed at the top of the second mounting plate, and the top of the nozzle passes through the corresponding through holes and extends to the top of the second mounting plate.

[0021] The present invention has at least the following beneficial effects:

[0022] (1) This solution sets a limit mechanism. When the parachute is deployed, the inner gear ring rotates, and the connecting rod drives the fixing column to disengage from the fixing hole on one side of the support frame. The torsion spring set at the connection between the support frame and the mounting frame rebounds, so that the support frame rotates counterclockwise from a state parallel to the end surface of the first mounting plate until one side of the support frame is blocked by the inner wall of the first opening. The support frame drives the internal connecting rope to adjust the angle until the clamping piece on the moving frame is clamped on the corresponding clamping plate, so that the connecting ropes are opened, so that the connecting ropes can be better opened, the entanglement of the connecting ropes is reduced, and the parachute can be opened faster;

[0023] (2) In this solution, when installing the connecting rope and the parachute, the second bevel gear is rotated to rotate by rotating the connecting column, and the second bevel gear is rotated to rotate the first bevel gear, and the first bevel gear is rotated to rotate the rotating rod connected thereto, so that the connecting rope is wound around the rotating rod, which is convenient for installing and storing the connecting rope;

[0024] (3) In this solution, when the connecting column is pressed by hand, the second bevel gear can be meshed with the first bevel gear, and the connecting rope can be stored. When the pressure on the connecting column is released, the second spring rebounds and supports the connecting column to move upward, so that the second bevel gear is disengaged from the first bevel gear, which can reduce the resistance encountered by the rotating rod when rotating, so that the connecting rope can be smoothly deployed;

[0025] (4) This solution sets a high-pressure gas tank. When the upper cover is opened, the solenoid valve opens synchronously, and a high-pressure airflow is sprayed toward the parachute through the nozzle, which can assist the parachute to be deployed better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is the installation diagram of the upper cover of the present invention;

[0029] Figure 3 This is a second installation board diagram of the present invention;

[0030] Figure 4 This is a first installation board diagram of the present invention;

[0031] Figure 5 This is the installation diagram of the connecting rod and the fixing column of the present invention;

[0032] Figure 6 It is the installation diagram of the collection frame of the present invention;

[0033] Figure 7 For the present invention Figure 5 Enlarged view of point A in the middle;

[0034] Figure 8 For the present invention Figure 6 Enlarged view of point B in the middle;

[0035] Fig. 9 For the present invention Figure 6 Enlarged view of point C in the middle;

[0036] Fig.10 This is an installation diagram of a high-pressure gas tank according to the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1. Base; 101. Mounting tube; 102. First mounting plate; 103. First opening; 104. Second mounting plate; 105. Second opening; 106. Through hole; 107. Rotating frame; 108. Rotating motor; 109. Upper cover; 2. Mounting frame; 201. Support frame; 202. Slide; 203. Moving frame; 204. Mounting block; 205. Baffle; 206. First spring; 207. Rotating frame; 208. Roller; 209. Snap-on; 210. Clamp; 211. Fixing hole; 3. First rotating groove; 301. Internal gear ring; 302. Connector Rod; 303, fixed column; 304, fixed frame; 305, first motor; 306, gear; 4, collection frame; 401, rotating rod; 402, first bevel gear; 403, fixed cylinder; 404, connecting column; 405, second bevel gear; 406, knob; 407, second rotating groove; 408, mounting ring; 409, moving column; 410, moving groove; 411, second spring; 5, connecting rope; 501, parachute; 6, fixed seat; 601, high-pressure gas tank; 602, fixed ring; 603, solenoid valve; 604, connecting pipe; 605, nozzle. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 10The present invention provides a parachute quick deployment safety device for low-altitude aircraft, comprising a base 1, a mounting tube 101, a first mounting plate 102 and a parachute 501. The base 1 is fixedly mounted on the top of the UAV fuselage by screws, the mounting tube 101 is fixedly mounted on the top of the base 1 by screws, the first mounting plate 102 is fixedly mounted on the top of the mounting tube 101 by screws, and the parachute 501 is arranged above the mounting tube 101; a limiting mechanism; the limiting mechanism is arranged on the first mounting plate 102, and the limiting mechanism limits the connection rope 5 on the parachute 501 through the support frame 201 and the moving frame 203 therein; a plurality of collecting mechanisms, the collecting mechanism is arranged at the bottom end of the inner wall of the mounting tube 101, and the collecting mechanism is arranged through The collecting frame 4 is used to store the connecting rope 5 on the parachute 501; a plurality of auxiliary unfolding mechanisms are provided at the bottom end of the inner wall of the mounting tube 101, and the auxiliary unfolding mechanisms assist the parachute 501 in unfolding through the nozzle 605 therein; the limiting mechanism includes a mounting frame 2, a support frame 201, a slide groove 202, a moving frame 203, a mounting block 204, a baffle 205, a plurality of first springs 206, a plurality of rotating frames 207, a roller 208, a fixing hole 211, a first rotating groove 3, an inner gear ring 301, a plurality of connecting rods 302, a fixing column 303, a clamping piece 209 and a clamping plate 210, the mounting frame 2 is fixedly installed on the top of the first mounting plate 102, and the support frame 201 is fixedly installed on the top of the first mounting plate 102, and the support frame 201 is fixedly installed on the top of the first mounting plate 102. The torsion spring is rotatably mounted on one side of the mounting frame 2, the slide grooves 202 are opened on both sides of the support frame 201, the mounting blocks 204 are fixedly mounted on both sides of the inner wall of the moving frame 203, the mounting blocks 204 are slidably mounted on the corresponding slide grooves 202 groove walls, the moving frame 203 is slidably mounted on the outer wall of the supporting frame 201 through the mounting blocks 204 inside it, the baffle 205 is fixedly mounted on the inner wall of the moving frame 203, a plurality of first springs 206 are fixedly mounted on one side of the baffle 205, the other end of the first spring 206 is fixedly mounted on one end of the supporting frame 201, a plurality of rotating frames 207 are respectively fixedly mounted on the inner walls of the supporting frame 201 and the moving frame 203, and the roller 208 is rotatably mounted on the outer wall of the rotating frame 207; by setting a limiting mechanism, When the parachute 501 is deployed, the inner gear ring 301 rotates, and drives the fixing column 303 to disengage from the fixing hole 211 on one side of the support frame 201 through the connecting rod 302. The torsion spring arranged at the connection between the support frame 201 and the mounting frame 2 rebounds, so that the support frame 201 rotates counterclockwise from a state parallel to the end face of the first mounting plate 102 until one side of the support frame 201 is blocked by the inner wall of the first opening 103. The support frame 201 drives the internal connecting rope 5 to adjust the angle until the clamping piece 209 on the moving frame 203 is clamped on the corresponding clamping plate 210, so that several connecting ropes 5 are opened, so that the connecting ropes 5 can be better opened, and the entanglement of the connecting ropes 5 is reduced, so that the parachute 501 can be opened faster.

[0041] In some embodiments, see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 The fixing hole 211 is opened on one side of the support frame 201, the first rotating groove 3 is opened on the top of the first mounting plate 102, the first rotating groove 3 is annular, the bottom of the inner gear ring 301 is rotatably installed on the groove wall of the first rotating groove 3, a plurality of connecting rods 302 are fixedly installed on the outer wall of the inner gear ring 301, the fixing column 303 is fixedly installed on one side of the connecting rod 302, the fixing column 303 is engaged with the corresponding fixing hole 211, the clamping member 209 is fixedly installed on one side of the moving frame 203, the clamping plate 210 is fixedly installed on the top of the first mounting plate 102, and the clamping plate 210 corresponds to the clamping member 209 in position, and the clamping member 209 is clamped with the corresponding clamping plate 210 Then, a plurality of first openings 103 are opened at the top of the first mounting plate 102, a second mounting plate 104 is fixedly installed at the top of the first mounting plate 102 by screws, a second opening 105 is opened at the top of the second mounting plate 104, the first openings 103 and the second openings 105 correspond to each other, and the mounting frame 2 is located corresponding to the first openings 103; the first motor 305 is started to drive the gear 306 to rotate, and the gear 306 drives the connecting rod 302 to move its position by engaging with the inner gear ring 301, thereby controlling the fixing column 303 to insert into or disengage from the fixing hole 211, and controlling the fixing or cancellation of the fixing support frame 201.

[0042] In this example, when the support frame 201 pops up, the clamping piece 209 on one side of the moving frame 203 presses on the inclined position of the card plate 210. The moving frame 203 receives the pressure from the card plate 210 and moves downward on the support frame 201 until the clamping piece 209 is clamped on the card plate 210. Then the first spring 206 rebounds to support the moving frame 203 to move upward on the support frame 201, and the angle of the moving frame 203 and the support frame 201 is fixed. After the parachute 501 is deployed, the angle of the connecting rope 5 can be fixed, which can effectively reduce the situation where the connecting rope 5 is shaken by the wind.

[0043] In some embodiments, see Figure 5 , Figure 7 A fixing frame 304 is fixedly installed on the top of the first mounting plate 102, and a first motor 305 is fixedly installed on the top of the fixing frame 304. The output end of the first motor 305 extends to the inside of the fixing frame 304, and a gear 306 is fixedly installed on the output end of the first motor 305. The gear 306 meshes with the teeth on the inner wall of the inner gear ring 301. By setting the first motor 305 to drive the inner gear ring 301, it is convenient to drive the fixed column 303 to move.

[0044] In some embodiments, see Figure 4 , Figure 6, the collecting mechanism includes a plurality of collecting frames 4, a rotating rod 401, a first bevel gear 402, a fixed cylinder 403, a connecting column 404, a second bevel gear 405 and a knob 406. The plurality of collecting frames 4 are fixedly mounted on the bottom end of the inner wall of the mounting cylinder 101, the rotating rod 401 is rotatably mounted on the two opposite sides of the inner wall of the collecting frame 4, one end of the rotating rod 401 extends to the outside of one side of the collecting frame 4, the first bevel gear 402 is fixedly mounted on one end of the rotating rod 401 extending to the outside of the collecting frame 4, the fixed cylinder 403 is fixedly mounted on the top center of the first mounting plate 102, the connecting column 404 is rotatably mounted on the inner wall of the fixed cylinder 403, the second bevel gear 405 is fixedly mounted on the bottom end of the connecting column 404, the knob 406 is fixedly mounted on the top of the connecting column 404, and the second bevel gear 405 is fixedly mounted on the bottom end of the connecting column 404. The gear 405 is meshed with the first bevel gear 402, the collecting frame 4 is located at a position corresponding to the first opening 103, one end of the connecting rope 5 is fixedly mounted on the outer wall of the corresponding rotating rod 401, and the other end of the connecting rope 5 passes through the supporting frame 201 and the moving frame 203 and extends to the outside of one side of the supporting frame 201, and the parachute 501 is fixedly mounted on the end of the connecting rope 5 extending to the outside of one side of the supporting frame 201; when installing the connecting rope 5 and the parachute 501, the connecting column 404 is rotated to drive the second bevel gear 405 to rotate, and the second bevel gear 405 rotates to drive the first bevel gear 402 to rotate, and the first bevel gear 402 rotates to drive the rotating rod 401 connected thereto to rotate, so that the connecting rope 5 is wound around the rotating rod 401, which is convenient for installing and storing the connecting rope 5.

[0045] In some embodiments, see Fig. 9 The inner wall of the fixed cylinder 403 is provided with a second rotating groove 407, and the second rotating groove 407 is annular. A mounting ring 408 is rotatably mounted on the groove wall of the second rotating groove 407. A plurality of moving columns 409 are fixedly mounted on one end of the mounting ring 408. A plurality of moving grooves 410 are provided on the outer wall of the connecting column 404. The moving columns 409 are slidably mounted on the groove walls of the corresponding moving grooves 410. The connecting column 404 is slidably mounted on the moving columns 409 through the moving grooves 410 thereon. A plurality of second springs 411 are fixedly mounted on one end of the mounting ring 408. The other end of 11 is fixedly installed on the outer wall of the connecting column 404; the connecting column 404 can rotate and move up and down in the fixing cylinder 403. When the connecting column 404 is pressed by hand, the second bevel gear 405 can be engaged with the first bevel gear 402, and the connecting rope 5 can be stored. When the pressure on the connecting column 404 is released, the second spring 411 rebounds and supports the connecting column 404 to move upward, so that the second bevel gear 405 is disengaged from the first bevel gear 402, which can reduce the resistance encountered by the rotating rod 401 when it rotates, so that the connecting rope 5 can be smoothly unfolded.

[0046] For further information, please refer again to Figure 2A rotating frame 107 is fixedly installed at the top edge of the second mounting plate 104, and a rotating motor 108 is fixedly installed on one side of the rotating frame 107. The output end of the rotating motor 108 extends to the inside of the rotating frame 107. An upper cover 109 is rotatably installed on the inner wall of the rotating frame 107. The upper cover 109 is rotatably installed on the inner wall of the rotating frame 107 through a protrusion on the outer wall, and the protrusion on the outer wall of the upper cover 109 is fixedly installed on the output end of the rotating motor 108; the rotating motor 108 is started to drive the upper cover 109 to rotate, and drives the upper cover 109 to open and close. When the upper cover 109 is closed on the second mounting plate 104, the parachute 501 is stored on the upper cover 109. When the upper cover 109 is opened, the parachute 501 can be detached and unfolded.

[0047] Furthermore, the auxiliary deployment mechanism includes a plurality of fixing seats 6, a high-pressure gas tank 601, a fixing ring 602, a solenoid valve 603, a connecting pipe 604 and a plurality of nozzles 605, wherein the plurality of fixing seats 6 are fixedly mounted on the bottom end of the inner wall of the mounting cylinder 101, the fixing ring 602 is fixedly mounted on the outer wall of the high-pressure gas tank 601, the high-pressure gas tank 601 is arranged on the inner wall of the fixing seat 6, the fixing ring 602 is fixedly mounted on the top of the fixing seat 6 by screws, a plurality of brackets are fixedly mounted on the inner wall of the mounting cylinder 101, the solenoid valve 603 is fixedly mounted on the corresponding bracket, a plurality of nozzles 605 are fixedly mounted on the top of the first mounting plate 102, and the bottom end of the nozzle 605 extends to At the bottom of the first mounting plate 102, one end of the solenoid valve 603 is connected to the corresponding high-pressure gas tank 601 through a pipeline, a connecting pipe 604 is fixedly installed at one end of the corresponding solenoid valve 603, and the other end of the connecting pipe 604 is fixedly installed at the bottom of the corresponding nozzle 605. A plurality of through holes 106 are opened at the top of the second mounting plate 104, and the top of the nozzle 605 extends to the top of the second mounting plate 104 through the corresponding through holes 106; by arranging the high-pressure gas tank 601, when the upper cover 109 is opened, the solenoid valve 603 is opened synchronously, and a high-pressure airflow is sprayed toward the parachute 501 through the nozzle 605, which can assist the parachute 501 to be better deployed.

[0048] The working process and principle of the present invention are as follows: when installing the parachute 501 and the connecting rope 5, the second bevel gear 405 rotates to drive the first bevel gear 402 to rotate, and the first bevel gear 402 rotates to drive the rotating rod 401 connected thereto to rotate, so that the connecting rope 5 is wound around the rotating rod 401, and the parachute 501 is stored between the second mounting plate 104 and the upper cover 109. The rotating motor 108 controls the upper cover 109 to close. When the parachute 501 is deployed, the upper cover 109 is opened, and the high-pressure airflow pushes the parachute 501 upward, while releasing the fixation of the support frame 201. The torsion spring provided at the connection between the support frame 201 and the mounting frame 2 rebounds, so that the support frame 201 rotates counterclockwise from a state parallel to the end face of the first mounting plate 102 until one side of the support frame 201 is blocked by the inner wall of the first opening 103. The support frame 201 drives the internal connecting rope 5 to adjust the angle, and the parachute 501 opens due to the resistance of the air, and drives the connecting rope 5 to extend.

[0049] 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.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A parachute quick deployment safety device for low altitude aircraft, characterized in that: include: A base (1), a mounting tube (101), a first mounting plate (102) and a parachute (501), wherein the base (1) is fixedly mounted on the top of a drone fuselage by means of screws, the mounting tube (101) is fixedly mounted on the top of the base (1) by means of screws, the first mounting plate (102) is fixedly mounted on the top of the mounting tube (101) by means of screws, and the parachute (501) is arranged above the mounting tube (101); A limiting mechanism; the limiting mechanism is arranged on the first mounting plate (102), and the limiting mechanism limits the connection rope (5) on the parachute (501) through the support frame (201) and the moving frame (203) therein; A plurality of collecting mechanisms, wherein the collecting mechanisms are arranged at the bottom end of the inner wall of the installation tube (101), and the collecting mechanisms collect the connecting ropes (5) on the parachute (501) through the collecting frames (4) therein; a plurality of auxiliary deployment mechanisms, wherein the auxiliary deployment mechanisms are arranged at the bottom end of the inner wall of the mounting tube (101), and the auxiliary deployment mechanisms assist the parachute (501) in deploying through a nozzle (605) therein; The limiting mechanism comprises a mounting frame (2), a support frame (201), a slide groove (202), a movable frame (203), a mounting block (204), a baffle (205), a plurality of first springs (206), a plurality of rotating frames (207), a roller (208), a fixing hole (211), a first rotating groove (3), an inner gear ring (301), a plurality of connecting rods (302), a fixing column (303), a clamping member (209) and a clamping plate (210); the mounting frame (2) is fixedly mounted on the top of the first mounting plate (102); the supporting frame (201) is rotatably mounted on one side of the mounting frame (2) through a torsion spring; the slide groove (202) is provided on both sides of the supporting frame (201); the mounting block (204) is fixedly mounted on the first mounting plate (102); The movable frame (203) is fixedly mounted on both sides of the inner wall of the movable frame (203); the mounting block (204) is slidably mounted on the groove wall corresponding to the slide groove (202); the movable frame (203) is slidably mounted on the outer wall of the support frame (201) through the mounting block (204) inside the movable frame (203); the baffle (205) is fixedly mounted on the inner wall of the movable frame (203); a plurality of the first springs (206) are fixedly mounted on one side of the baffle (205); the other end of the first spring (206) is fixedly mounted on one end of the support frame (201); a plurality of rotating frames (207) are respectively fixedly mounted on the inner walls of the support frame (201) and the movable frame (203); and the roller (208) is rotatably mounted on the outer wall of the rotating frame (207).

2. A parachute quick deployment safety device for low altitude aircraft according to claim 1, characterized in that: The fixing hole (211) is provided on one side of the supporting frame (201); the first rotating groove (3) is provided on the top of the first mounting plate (102); the first rotating groove (3) is annular; the bottom of the inner gear ring (301) is rotatably mounted on the groove wall of the first rotating groove (3); a plurality of connecting rods (302) are fixedly mounted on the outer wall of the inner gear ring (301); the fixing column (303) is fixedly mounted on one side of the connecting rod (302); the fixing column (303) is engaged with the corresponding fixing hole (211); the clamping member (209) is fixedly mounted on one side of the moving frame (203); the clamping plate (210) is fixedly mounted on the top of the first mounting plate (102); the clamping plate (210) corresponds to the clamping member (209) in position; the clamping member (209) is clamped with the corresponding clamping plate (210).

3. A parachute quick deployment safety device for low altitude aircraft according to claim 1, characterized in that: A plurality of first openings (103) are provided at the top of the first mounting plate (102); a second mounting plate (104) is fixedly mounted on the top of the first mounting plate (102) by means of screws; a second opening (105) is provided at the top of the second mounting plate (104); the first openings (103) and the second openings (105) are located in corresponding positions; and the mounting frame (2) is located in a position corresponding to the first openings (103).

4. A parachute quick deployment safety device for low altitude aircraft according to claim 1, characterized in that: A fixing frame (304) is fixedly mounted on the top of the first mounting plate (102), a first motor (305) is fixedly mounted on the top of the fixing frame (304), an output end of the first motor (305) extends into the interior of the fixing frame (304), a gear (306) is fixedly mounted on the output end of the first motor (305), and the gear (306) is meshed with teeth on the inner wall of the inner gear ring (301).

5. A parachute quick deployment safety device for low altitude aircraft according to claim 3, characterized in that: The collecting mechanism comprises a plurality of collecting frames (4), a rotating rod (401), a first bevel gear (402), a fixing cylinder (403), a connecting column (404), a second bevel gear (405) and a knob (406); the plurality of collecting frames (4) are fixedly mounted on the bottom end of the inner wall of the mounting cylinder (101); the rotating rod (401) is rotatably mounted on two opposite sides of the inner wall of the collecting frame (4); one end of the rotating rod (401) extends to the outside of one side of the collecting frame (4); the first bevel gear (402) is fixedly mounted on the rotating rod (401); ) extends to one end outside the collection frame (4), the fixed cylinder (403) is fixedly installed at the top center of the first mounting plate (102), the connecting column (404) is rotatably installed on the inner wall of the fixed cylinder (403), the second bevel gear (405) is fixedly installed at the bottom end of the connecting column (404), the knob (406) is fixedly installed at the top end of the connecting column (404), the second bevel gear (405) is meshed with the first bevel gear (402), and the collection frame (4) is located corresponding to the first opening (103).

6. A parachute quick deployment safety device for low altitude aircraft according to claim 5, characterized in that: One end of the connecting rope (5) is fixedly mounted on the outer wall of the corresponding rotating rod (401), and the other end of the connecting rope (5) passes through the supporting frame (201) and the moving frame (203) and extends to the outside of one side of the supporting frame (201); the parachute (501) is fixedly mounted on the end of the connecting rope (5) extending to the outside of one side of the supporting frame (201).

7. A parachute quick deployment safety device for low altitude aircraft according to claim 5, characterized in that: The inner wall of the fixed cylinder (403) is provided with a second rotating groove (407), the second rotating groove (407) is annular, a mounting ring (408) is rotatably installed on the groove wall of the second rotating groove (407), one end of the mounting ring (408) is fixedly installed with a plurality of movable columns (409), the outer wall of the connecting column (404) is provided with a plurality of movable grooves (410), the movable columns (409) are slidably installed on the groove walls corresponding to the movable grooves (410), the connecting column (404) is slidably installed on the movable columns (409) through the movable grooves (410) thereon, one end of the mounting ring (408) is fixedly installed with a plurality of second springs (411), the other end of the second spring (411) is fixedly installed on the outer wall of the connecting column (404).

8. A parachute quick deployment safety device for low altitude aircraft according to claim 3, characterized in that: A rotating frame (107) is fixedly mounted at the top edge of the second mounting plate (104); a rotating motor (108) is fixedly mounted on one side of the rotating frame (107); an output end of the rotating motor (108) extends into the interior of the rotating frame (107); an upper cover (109) is rotatably mounted on the inner wall of the rotating frame (107); the upper cover (109) is rotatably mounted on the inner wall of the rotating frame (107) via a protrusion on the outer wall; and the protrusion on the outer wall of the upper cover (109) is fixedly mounted on the output end of the rotating motor (108).

9. A parachute quick deployment safety device for low altitude aircraft according to claim 8, characterized in that: The auxiliary deployment mechanism comprises a plurality of fixing seats (6), a high-pressure gas tank (601), a fixing ring (602), a solenoid valve (603), a connecting pipe (604) and a plurality of nozzles (605), wherein the plurality of fixing seats (6) are fixedly mounted on the bottom end of the inner wall of the mounting tube (101), the fixing ring (602) is fixedly mounted on the outer wall of the high-pressure gas tank (601), the high-pressure gas tank (601) is arranged on the inner wall of the fixing seat (6), the fixing ring (602) is fixedly mounted on the top end of the fixing seat (6) by means of screws, and the mounting tube (101) A plurality of brackets are fixedly installed on the inner wall, the solenoid valve (603) is fixedly installed on the corresponding bracket, a plurality of nozzles (605) are fixedly installed on the top of the first mounting plate (102), and the bottom end of the nozzle (605) extends to the bottom of the first mounting plate (102), one end of the solenoid valve (603) is connected to the corresponding high-pressure gas tank (601) through a pipeline, the connecting pipe (604) is fixedly installed on one end of the corresponding solenoid valve (603), and the other end of the connecting pipe (604) is fixedly installed on the bottom end of the corresponding nozzle (605).

10. A parachute quick deployment safety device for low altitude aircraft according to claim 9, characterized in that: A plurality of through holes (106) are provided at the top of the second mounting plate (104), and the top of the nozzle (605) passes through the corresponding through holes (106) and extends to the top of the second mounting plate (104).

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