Airdrop device for light transport

Abstract

The present application relates to a kind of air-drop device of light transport machine, it includes frame support, fixed installation in frame support limiting frame, cargo slide-down subassembly is installed in the limiting frame in the form of tilt, and stop subassembly is installed in the import and export end of limiting frame;The stop subassembly includes groove plate rotation sliding subassembly and drive assembly;The included angle of the cargo slide-down subassembly with horizontal plane is 10-20 °;Transport machine flies to drop point, and by controlling electric push rod to release stop subassembly, cargo is due to gravity and slides out cabin port along cargo slide-down subassembly and auxiliary slide subassembly, realizes unmanned delivery work;Transport machine can keep original aerodynamic layout and weight center of gravity range, maintains original flight performance and flight quality.

Description

Technical Field

[0001] This invention relates to an airdrop device for a light transport aircraft, belonging to the field of aircraft manufacturing technology. Background Technology

[0002] Currently, light transport aircraft, whether manned or unmanned, rely on human labor for loading and unloading cargo, which is time-consuming and labor-intensive. Furthermore, the aircraft must remain on the ground for both loading and unloading. Personnel and cargo enter and exit through the passenger and cargo doors. If the personnel pushing the airdropped supplies do not apply sufficient thrust before the supplies are launched, even a slight deviation in thrust can cause the supplies to be launched unevenly, or even collide inside the cabin, delaying the airdrop and missing the optimal drop point. This delay results in the airdropped supplies deviating significantly from the intended location, reducing airdrop efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an airdrop device for a light transport aircraft that automatically delivers cargo through the cargo door without deviation.

[0004] The present invention adopts the following technical solution:

[0005] The present invention includes a frame support, a limiting frame fixedly installed on the frame support, a cargo sliding component installed obliquely within the limiting frame, and a stop component installed at the inlet and outlet ends of the limiting frame; the stop component includes a groove plate rotation sliding component and a drive component; the angle between the cargo sliding component and the horizontal plane is 10-20°.

[0006] The limiting frame of this invention includes a front door frame fixedly installed at the front end of a frame support, a rear door frame fixedly installed at the rear end of the frame support, a left stop fixedly installed between the left side frames of the front and rear door frames, and a right stop fixedly installed between the right side frames of the front and rear door frames. The cargo sliding assembly is inclinedly installed between the inner sides of the front and rear door frames, extending to the outside of the rear door frame, with a lower front end and a higher rear end. The trough plate rotating sliding assembly is installed on the front door frame. The drive assembly is installed at the front end of the cargo sliding assembly and is gap-fitted into the trough plate rotating sliding assembly. The left and right stop rods are both located above the cargo sliding assembly, and pulleys are evenly installed at intervals on the inner sides of the left and right stop rods.

[0007] The groove plate rotating sliding assembly of the present invention includes an upper left L-shaped bracket and a lower left L-shaped bracket fixedly installed at intervals on the inner side of the left frame of the front door frame; an upper right L-shaped bracket and a lower right L-shaped bracket fixedly installed on the inner side of the right frame of the front door frame, corresponding to the upper left L-shaped bracket; and a groove plate rotatably installed between the upper right L-shaped bracket and the lower right L-shaped bracket; the groove plate is horizontally arranged with the groove opening facing backward; a long plate-shaped push rod is vertically fixedly installed on the front side of the groove plate; the bottom of the long plate-shaped push rod is inserted into the drive assembly with a gap; a left limiting elongated hole with a right end opening is correspondingly provided on the horizontal plates of the upper left L-shaped bracket and the lower left L-shaped bracket, and a right limiting elongated hole is correspondingly provided on the horizontal plates of the upper right L-shaped bracket and the lower right L-shaped bracket; a left limiting pin with protruding ends at both the top and bottom is installed on the left end of the groove plate; and a groove plate is rotatably installed between the upper right L-shaped bracket and the lower right L-shaped bracket. A right limiting pin with protruding ends at both the top and bottom is installed on the right end of the plate; the gap at the left end of the trough plate is set between the upper left L-shaped bracket and the lower left L-shaped bracket, and the corresponding gaps at the upper and lower ends of the left limiting pin are set in the left limiting elongated hole; the gap at the right end of the trough plate is set between the upper right L-shaped bracket and the lower right L-shaped bracket, and the corresponding gaps at the upper and lower ends of the right limiting pin are set in the right limiting elongated hole; a rear vertical roller is installed at even intervals on the rear side of the trough plate between the left and right limiting pins, with the outer surface of the rear vertical roller located on the outer side of the trough plate so that it rotates with friction against the goods; when the drive assembly pushes the trough plate to the right through the long plate-shaped push rod so that the right limiting pin reaches the right end of the right limiting elongated hole, the left limiting pin disengages from the left limiting elongated hole, and after the goods push the trough plate so that the long plate-shaped push rod disengages from the drive assembly, the trough plate opens counterclockwise around the right limiting pin.

[0008] The drive assembly of the present invention includes an electric push rod that is horizontally fixed on the front crossbeam of the cargo sliding assembly and a push plate that is vertically fixed on the end of the electric push rod. A U-shaped groove is provided on the top of the push plate, and the bottom end of the long plate-shaped push rod is inserted into the U-shaped groove with a gap.

[0009] The cargo sliding assembly of the present invention includes a rectangular frame A, which is inclined and installed between the inner sides of the front door frame and the rear door frame and extends to the outer side of the rear door frame, with a lower front end and a higher rear end; and long rollers that are evenly spaced and rotatably installed between the two side beams of the rectangular frame A. The angle between the front end of the rectangular frame A and the horizontal plane is 10-20°. The electric push rod is horizontally fixedly installed on the front side of the front beam of the rectangular frame A, and the top of the push plate is lower than the upper surface of the adjacent long roller. The cargo is placed between the front door frame and the rear door frame and its bottom rests on the long roller.

[0010] The present invention has an auxiliary sliding component that is hinged to the front beam of the rectangular frame A and folds towards the front door frame. A limiting beam is fixedly installed on the right side of the auxiliary sliding component and inside the right side frame of the front door frame. Supporting short beams for supporting the auxiliary sliding component are fixedly installed at the bottom front end of both sides of the rectangular frame A. The supporting short beams make the top surface of the auxiliary sliding component and the top surface of the cargo sliding component on the same slope.

[0011] The auxiliary sliding assembly of the present invention includes a rectangular frame B that is inclinedly hinged to the front beam of a rectangular frame A, and short rollers that are rotatably installed at even intervals between the two side beams of the rectangular frame B. Angle steel is fixedly installed at the rear end of the outer side of the two sides of the rectangular frame B, and the flat plate of the angle steel is set on the top surface of the supporting short beam to support the rectangular frame B. The angle between the front end of the rectangular frame B and the horizontal plane is 10-20°. The top surface of the short rollers and the long rollers are on the same inclined plane. The top of the push plate is lower than the upper surface of the adjacent short roller.

[0012] The present invention provides a limit beam frame with evenly spaced universal balls installed on the inner side of the upper frame.

[0013] The left and right stop levers described in this invention are both two in number.

[0014] In this invention, the angle between the front ends of rectangular frame A and rectangular frame B and the horizontal plane is 15°.

[0015] The positive effects of this invention are as follows: The cargo to be deployed is placed above the glide assembly, between the limiting frame and the stop assembly. The cargo is placed on a long roller and limited by pulleys on the left and right stops. The angle between the front ends of rectangular frames A and B and the horizontal plane is 10-20°. The weight of the cargo can overcome crosswind resistance and frictional resistance, ensuring the safe detachment of the cargo from the aircraft and maximizing flight safety. After the transport aircraft reaches the deployment point, the stop assembly is released by controlling the electric push rod. The cargo slides out of the cabin opening along the cargo glide assembly and auxiliary glide assembly due to gravity, achieving unmanned deployment with no deviation from the predetermined location. The transport aircraft can maintain its original aerodynamic layout and center of gravity range, preserving its original flight performance and flight quality. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Appendix Figure 2 This is a schematic diagram of the limiting frame and cargo sliding component structure of the present invention;

[0018] Appendix Figure 3 This is a schematic diagram of the groove plate rotation and sliding assembly structure of the present invention;

[0019] Appendix Figure 4 This is a schematic diagram of the vertical roller structure after the groove plate is installed according to the present invention;

[0020] Appendix Figure 5 This is a schematic diagram of the installation position of the supporting short beam of the present invention. Detailed Implementation

[0021] In the description of this invention, the appendix is ​​used. Figure 1 The direction in which goods slide down is forward, and the opposite is backward.

[0022] As attached Figure 1 As shown, the present invention includes a frame support 1, a limiting frame 2 fixedly installed on the frame support 1, a cargo sliding assembly 3 inclinedly installed within the limiting frame 2, and a stop assembly 4 installed at the inlet and outlet ends of the limiting frame 2; cargo 8 is placed in the area between the limiting frame 2, the cargo sliding assembly 3, and the stop assembly 4; the stop assembly 4 includes a groove plate rotation sliding assembly and a drive assembly; the angle between the cargo sliding assembly 3 and the horizontal plane is 10-20°, and is preferably 15° in this embodiment; the cargo 8 in this embodiment is a cuboid.

[0023] As attached Figure 2 As shown, the limiting frame 2 of the present invention includes a front door frame 201 fixedly installed at the front end of the frame support 1, a rear door frame 202 fixedly installed at the rear end of the frame support 1, a left stop bar 203 fixedly installed between the left side frames of the front door frame 201 and the rear door frame 202, and a right stop bar 204 fixedly installed between the right side frames of the door frame 201 and the rear door frame 202; the cargo sliding assembly 3 is inclinedly installed on the front door frame 201 and the rear door frame 202 with a lower front end and a higher rear end. The inner side of the 02 extends to the outside of the rear door frame 202; the trough plate rotating sliding assembly is installed on the front door frame 201; the drive assembly is installed at the front end of the cargo sliding assembly 3 and is gapped into the trough plate rotating sliding assembly; the left stop 203 and the right stop 204 are both located above the cargo sliding assembly. In this embodiment, the left stop 203 and the right stop 204 are two spaced-apart rods, and pulleys 205 are evenly installed on the inner side of the left stop 203 and the right stop 204 at intervals.

[0024] As attached Figure 3 , 4As shown, the groove plate rotating sliding assembly of the present invention includes an upper left L-shaped bracket 206 and a lower left L-shaped bracket 207 fixedly installed on the inner side of the left side frame of the front door frame 201; an upper right L-shaped bracket 208 corresponding to the upper left L-shaped bracket 206 and a lower right L-shaped bracket 209 corresponding to the lower left L-shaped bracket 207 fixedly installed on the inner side of the right side frame of the front door frame 201; and a groove plate 210 rotatably installed between the upper right L-shaped bracket 208 and the lower right L-shaped bracket 209 with a gap; the groove plate 210 is horizontally arranged and the groove opening faces... Then; a long plate-shaped push rod 211 is vertically fixedly installed on the front side of the slot plate 210; the bottom of the long plate-shaped push rod 211 is inserted into the drive assembly with a gap; a left limiting elongated hole 212 with a right end opening is set on the horizontal plate of the upper left L-shaped bracket 206 and the lower left L-shaped bracket 207, and a right limiting elongated hole 213 is set on the horizontal plate of the upper right L-shaped bracket 208 and the lower right L-shaped bracket 209; a left limiting pin 214 with both upper and lower protrusions is installed on the left end of the slot plate 210, and a right limiting pin with both upper and lower protrusions is installed on the right end of the slot plate 210. Shaft 215; the left end gap of the groove plate 210 is set between the upper left L-shaped bracket 206 and the lower left L-shaped bracket 207, and the corresponding gaps at the upper and lower ends of the left limiting pin 214 are set in the left limiting elongated hole 212; the right end gap of the groove plate 210 is set between the upper right L-shaped bracket 208 and the lower right L-shaped bracket 209, and the corresponding gaps at the upper and lower ends of the right limiting pin 215 are set in the right limiting elongated hole 213, used to block the goods 8; between the left limiting pin 214 and the right limiting pin 215, behind the groove plate 210 The rear vertical roller 216 is installed with uniform side-spaced rotation. The outer surface of the rear vertical roller 216 is located outside the trough plate 210, causing it to rotate in friction with the cargo 8. The drive assembly pushes the trough plate 210 to the right via the long plate-shaped push rod 211. When the right limit pin 215 reaches the right end of the right limit elongated hole 213, the left limit pin 214 disengages from the left limit elongated hole 212. Under the action of gravity, the cargo rubs against the rear vertical roller 216, pushing the trough plate 210. After the long plate-shaped push rod 211 disengages from the drive assembly, the trough plate 210 opens counterclockwise around the right limit pin 215. At the same time, after opening the trough plate 210, the cargo can also be pushed backward into the limiting frame 2.

[0025] The drive assembly of the present invention includes an electric push rod 217 that is horizontally fixed on the front crossbeam of the cargo sliding assembly 3 and a push plate 218 that is vertically fixed on the end of the electric push rod 217. A U-shaped groove 219 is provided on the top of the push plate 218, and the bottom end of the long plate-shaped push rod 211 is inserted into the U-shaped groove 219 with a gap.

[0026] As attached Figure 2 , 3As shown in Figure 5, the cargo sliding assembly 3 includes a rectangular frame A 301, which is inclined at the front end and higher at the rear end, installed between the inner sides of the front door frame 201 and the rear door frame 202 and extending to the outer side of the rear door frame 202; and a long roller 302, which is rotatably installed between the two side beams of the rectangular frame A301 at even intervals. A battery mounting bracket 9 is installed at the rear end of the rectangular frame A301. The battery mounting bracket 9 is used to install a battery, which is electrically connected to an electric push rod 217. The electric push rod 217 is laterally fixedly installed on the front side of the front beam of the rectangular frame A301. The cargo 8 is placed between the front door frame 201 and the rear door frame 202, with its bottom resting on the long roller 302. An auxiliary sliding assembly 5, hinged to the front beam of the rectangular frame A301 and folded towards the front door frame 201, is fixedly installed on the right side of the auxiliary sliding assembly 5, inside the right side frame of the front door frame 201. Universal balls 601 are evenly spaced installed on the inner side of the upper frame of the limiting beam 6. The limiting beam 6 prevents goods from falling from the side, and the goods are restrained by friction with the universal balls 601. Supporting short beams 7, used to support the auxiliary sliding assembly 5, are fixedly installed at the bottom front end of both sides of the rectangular frame A301. The supporting short beams 7 ensure that the top surface of the auxiliary sliding assembly 5 and the top surface of the goods sliding assembly 3 are on the same slope.

[0027] The auxiliary sliding assembly 5 of this invention includes a rectangular frame B501 that is inclinedly hinged to the front beam of a rectangular frame A301, and short rollers 502 that are evenly spaced and rotatably installed between the two side beams of the rectangular frame B501. When not in use, the rectangular frame B501 can be folded upward and connected to the front door frame 201 via hooks. Angle steel 503 is fixedly installed on the rear end of the outer side of the two sides of the rectangular frame B501. The flat plate of the angle steel 503 is set on the top surface of the supporting short beam 7 to support the rectangular frame B501. The angle between the front end of the rectangular frame A301 and the front end of the rectangular frame B501 and the horizontal plane is 10-20°. In this embodiment, the optimal angle is 15°. The top surface of the short roller 502 is on the same inclined plane as the long roller 302. The top of the push plate 218 is lower than the upper surface of the adjacent long roller 302 and short roller 502 to prevent interference when the goods 8 slide down.

[0028] The cargo 8 to be delivered is placed above the sliding assembly 3, between the limiting frame 2 and the stop assembly 4. The cargo is placed on the long roller 302 and is limited by the pulleys 205 on the left stop 203 and right stop 204. The angle between the front ends of the rectangular frames A301 and B501 and the horizontal plane is 10-20°, with 15° being optimal. After the transport aircraft flies to the delivery point, the stop assembly is released by controlling the electric push rod 217. Specifically, the rod end of the electric push rod 217 retracts into the cylinder, and the U-shaped groove 219 on the top of the push plate 218 pushes the long plate. The push rod 211 and the trough plate 210 move to the right, causing the rear vertical roller 216 on the trough plate 210 to move relative to the cargo. When the left limiting pin 214 on the trough plate 210 disengages from the left limiting elongated hole 212, the limiting function of the trough plate 210 is canceled. The gravity of the cargo 8 pushes the trough plate 210 to rotate counterclockwise around the right limiting pin 215 and open. Due to gravity, the cargo 8 slides out of the cabin opening along the cargo sliding assembly 3 and the auxiliary sliding assembly 5, achieving unmanned delivery and ensuring that the airdropped materials are within the predetermined location without deviation. The device of this invention is installed inside the transport cabin and has no impact on the aerodynamics of the transport aircraft. This invention has been used in the cargo delivery system of the Y5B modified UAV with good results.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An airdrop device for a light transport aircraft, characterized in that, It includes a frame support (1), a limiting frame (2) fixedly installed on the frame support (1), a cargo sliding assembly (3) inclinedly installed in the limiting frame (2), and a stop assembly (4) installed at the inlet and outlet ends of the limiting frame (2). The stop assembly (4) includes a groove plate rotation sliding assembly and a drive assembly; The angle between the cargo sliding component (3) and the horizontal plane is 10-20°. The slot plate rotating sliding assembly includes an upper left L-shaped bracket (206) and a lower left L-shaped bracket (207) fixedly installed at intervals on the inner side of the left frame of the front door frame (201); an upper right L-shaped bracket (208) corresponding to the upper left L-shaped bracket (206) and a lower right L-shaped bracket (209) corresponding to the lower left L-shaped bracket (207) fixedly installed on the inner side of the right frame of the front door frame (201); and a slot plate (210) rotatably installed between the upper right L-shaped bracket (208) and the lower right L-shaped bracket (209); the slot plate (210) is horizontally arranged and the slot faces backward; A long plate-shaped push rod (211) is vertically fixed on the front side of the slot plate (210); the bottom of the long plate-shaped push rod (211) is inserted into the drive assembly with a gap; Left limiting elongated holes (212) with right end openings are provided on the horizontal plates of the upper left L-shaped bracket (206) and the lower left L-shaped bracket (207), and right limiting elongated holes (213) are provided on the horizontal plates of the upper right L-shaped bracket (208) and the lower right L-shaped bracket (209). A left limiting pin (214) with protruding ends at both the top and bottom is installed at the left end of the slot plate (210), and a right limiting pin (215) with protruding ends at both the top and bottom is installed at the right end of the slot plate (210). The gap at the left end of the groove plate (210) is set between the upper left L-shaped bracket (206) and the lower left L-shaped bracket (207), and the gaps at the upper and lower ends of the left limiting pin (214) are set in the left limiting elongated hole (212); The gap at the right end of the trough plate (210) is set between the upper right L-shaped bracket (208) and the lower right L-shaped bracket (209), and the gaps at the upper and lower ends of the right limiting pin (215) are set in the right limiting long hole (213); the rear vertical roller (216) is installed at a uniform interval between the left limiting pin (214) and the right limiting pin (215) on the rear side of the trough plate (210), and the outer surface of the rear vertical roller (216) is located on the outside of the trough plate (210) so that it rubs against the goods (8) and rotates. When the drive assembly pushes the slot plate (210) to the right via the long plate-shaped push rod (211) so that the right limit pin (215) reaches the right end of the right limit long hole (213), the left limit pin (214) disengages from the left limit long hole (212). After the cargo pushes the slot plate (210) so that the long plate-shaped push rod (211) disengages from the drive assembly, the slot plate (210) opens counterclockwise around the right limit pin (215).

2. The airdrop device for a light transport aircraft according to claim 1, characterized in that, The limiting frame (2) includes a front door frame (201) fixedly installed at the front end of the frame support (1), a rear door frame (202) fixedly installed at the rear end of the frame support (1), a left stop (203) fixedly installed between the left side frames of the front door frame (201) and the rear door frame (202), and a right stop (204) fixedly installed between the right side frames of the front door frame (201) and the rear door frame (202). The cargo sliding assembly (3) is installed at an angle with a low front end and a high rear end between the inner sides of the front door frame (201) and the rear door frame (202) and extends to the outside of the rear door frame (202); The trough plate rotating sliding assembly is installed on the front door frame (201); the drive assembly is installed at the front end of the cargo sliding assembly (3) and is interlocked with the trough plate rotating sliding assembly; The left stop (203) and the right stop (204) are both located above the cargo sliding assembly, and pulleys (205) are evenly installed at intervals on the inner sides of the left stop (203) and the right stop (204).

3. The airdrop device for a light transport aircraft according to claim 1, characterized in that, The drive assembly includes an electric push rod (217) that is horizontally fixed on the front crossbeam of the cargo sliding assembly (3) and a push plate (218) that is vertically fixed on the end of the electric push rod (217). A U-shaped groove (219) is provided on the top of the push plate (218), and the bottom end of the long plate-shaped push rod (211) is inserted into the U-shaped groove (219) with a gap.

4. The airdrop device for a light transport aircraft according to claim 3, characterized in that, The cargo sliding assembly (3) includes a rectangular frame A (301) that is inclined between the front door frame (201) and the rear door frame (202) and extends to the rear side of the rear door frame (202) with a low front end and a high rear end, and a long roller (302) that is evenly rotated between the two beams of the rectangular frame A (301). The angle between the front end of rectangular frame A (301) and the horizontal plane is 10-20°. The electric push rod (217) is horizontally fixedly installed on the front side of the front beam of the rectangular frame A (301), and the top of the push plate (218) is lower than the upper surface of the adjacent long roller (302); the goods (8) are placed between the front door frame (201) and the rear door frame (202) and the bottom is placed on the long roller (302).

5. The airdrop device for a light transport aircraft according to claim 4, characterized in that, A sliding component (5) is hinged to the front beam of the rectangular frame A (301) and folded towards the front door frame (201). A limiting beam (6) is fixedly installed on the right side of the right frame of the front door frame (201) on the inner side of the auxiliary sliding component (5). A support beam (7) for supporting the auxiliary sliding assembly (5) is fixedly installed at the bottom front end of both sides of the rectangular frame A (301). The support beam (7) makes the top surface of the auxiliary sliding assembly (5) and the top surface of the cargo sliding assembly (3) on the same slope.

6. The airdrop device for a light transport aircraft according to claim 5, characterized in that, The auxiliary sliding assembly (5) includes a rectangular frame B (501) that is inclinedly hinged to the front beam of the rectangular frame A (301) and short rollers (502) that are evenly rotated between the two beams of the rectangular frame B (501). Angle steel (503) is fixedly installed at the rear end of the outer side of the two sides of the rectangular frame B (501). The flat plate of the angle steel (503) is set on the top surface of the supporting short beam (7) to support the rectangular frame B (501). The angle between the front end of rectangular frame B (501) and the horizontal plane is 10-20°. The top surface of the short roller (502) is on the same inclined plane as the long roller (302); the top of the push plate (218) is lower than the upper surface of the adjacent short roller (502).

7. The airdrop device for a light transport aircraft according to claim 4, characterized in that, Universal balls (601) are evenly installed on the inner side of the upper frame of the limiting beam (6).

8. The airdrop device for a light transport aircraft according to claim 2, characterized in that, The left stop (203) and the right stop (204) are both two.

9. The airdrop device for a light transport aircraft according to claim 6, characterized in that, The angle between the front end of rectangular frame A (301) and rectangular frame B (501) and the horizontal plane is 15°.

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