Overwater air-drop device capable of automatically separating air-drop objects

Abstract

The utility model relates to an overwater air-drop device capable of automatically separating an air-drop object. The overwater air-drop device comprises a base frame, a first shaft pin, an easy-to-shear connecting piece, a wiring harness connector, a gas generator, a pushing piece, a hanging belt, a water triggering device and a limiting hoop used for tightly holding the air-drop object. The base frame comprises a power part, and the power part is provided with a cavity; one end of the first shaft pin is connected to the base frame through the easy-to-shear connecting piece, and the other end is connected to the pushing piece; the pushing piece is sleeved with a first sealing ring, the pushing piece, the first shaft pin and the first sealing ring are all slidably connected to the cavity, and a closed space is defined by the pushing piece, the first sealing ring, the first shaft pin and the power part; the wire harness connector is electrically connected to the gas generator; one end of the hanging belt is connected with the limiting hoop, and the other end is connected with the parachute; one end of the limiting hoop sleeves the first shaft pin, and the other end of the limiting hoop is connected to the base frame; the water trigger device is electrically connected to the wire harness connector. The automatic separation of the parachute and the air-dropped object in seawater can be realized, so that the air-dropped object sinks into the sea as expected.

Description

Technical Field

[0001] The utility model relates to the technical field of parachute separation of airdropped objects, in particular to an overwater airdrop device capable of automatically separating airdropped objects. Background Art

[0002] Airdrop refers to the use of parachute technology to deliver personnel or supplies from an airplane or drone, so that the required personnel or supplies can reach their destination quickly.

[0003] With the development of society and the advancement of science and technology, the application areas of airdrop are becoming wider and wider, and the requirements for airdrop technology are becoming higher and higher. Airdrop has been widely used in disaster relief, transportation, escape, and troop deployment.

[0004] In some special application scenarios, people need to drop airdrops to the sea and sink them into the sea. However, when the parachute and the airdrops land on the sea together, the parachute and the airdrops are still connected together, and the parachute has a large buoyancy and is easy to float on the sea surface, so the airdrops connected to the parachute cannot sink smoothly into the sea as required. In addition, due to the movement of ocean currents, the parachute will carry the airdrops and drift with the ocean currents, and the airdrops cannot be accurately dropped in the predetermined airdrop area.

[0005] Therefore, it is necessary to develop a water aerial drop device that can automatically separate aerial drop objects. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an overwater airdrop device which can automatically separate airdrop objects, and can automatically separate the connection between the parachute and the airdrop object after landing on the water, so that the airdrop object can sink smoothly into the sea.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An airdrop device capable of automatically separating airdropped objects on water, comprising a base frame, a first axle pin, an easy-to-cut connector, a wiring harness connector, a gas generator, a pusher, a hanging belt, a water-triggering device, and a limit clamp for clamping the airdropped object;

[0009] The base frame includes a power unit, and the power unit is provided with a cavity;

[0010] One end of the first axle pin is connected to the base frame through the easy-to-shear connector, and the other end is connected to the pushing member;

[0011] The pusher is sleeved with a first sealing ring, the pusher, the first pin and the first sealing ring are all slidably connected to the cavity, and the pusher, the first sealing ring, the first shaft pin and the power unit form a closed space;

[0012] The pusher is provided with an exhaust hole, the exhaust hole is connected to the enclosed space, and the gas generator is connected to the exhaust hole;

[0013] The wiring harness connector is electrically connected to the gas generator;

[0014] One end of the sling is connected to the limit hoop, and the other end is used to connect the parachute;

[0015] One end of the limiting clamp is sleeved on the first shaft pin, and the other end is connected to the base frame;

[0016] The water-triggering device is electrically connected to the wiring harness connector.

[0017] Furthermore, the limiting clamp includes a steel belt, a wrapping belt, a cushion and a pin; one end of the steel belt is sleeved on the first axial pin, one end of the wrapping belt is connected to the base frame, and the pin is simultaneously passed through the other end of the steel belt and the other end of the wrapping belt; the cushion is adhered to the inner side of the steel belt, the hanging belt is connected to the steel belt, and a limiting space for clamping the airdropped object is formed between the steel belt and the wrapping belt.

[0018] Furthermore, the steel belt is provided with a hanging piece protruding outward, and the hanging belt is connected to the hanging piece.

[0019] Furthermore, the strap is a soft webbing.

[0020] Furthermore, the base frame is provided with a second axle pin, the second axle pin is arranged on one side of the first axle pin, and the wrapping belt is sleeved on the second axle pin.

[0021] Furthermore, the water-triggered device includes a circuit board, a battery and a connecting terminal. The circuit board is provided with two exposed metal contacts. The battery is electrically connected to the circuit board and the connecting terminal respectively. The connecting terminal is connected to the wiring harness connector.

[0022] Furthermore, the metal contact is a copper contact, and an anti-false triggering film is attached to the copper contact.

[0023] Furthermore, the battery is a carbon fluoride battery.

[0024] Furthermore, the water-triggering device is connected to the base frame by screws, and a second sealing ring is provided at the connection between the water-triggering device and the base frame.

[0025] Furthermore, both ends of the airdropped object are provided with correspondingly installed limit clamps and water-triggering devices.

[0026] In general, the utility model has the following advantages:

[0027] When in use, one end of the limit clamp is sleeved on the first axle pin, and the other end is connected to the base frame, so that the airdrop object is tightly held in the limit clamp. When the airdrop object and the parachute land on the sea surface together, the water-triggering device enters the sea water, and the gas generator is triggered through the wiring harness connector. The gas generator instantly generates a large amount of gas, which is transported through the exhaust hole to the enclosed space formed by the pusher, the first shaft pin, the first sealing ring and the power unit. The gas instantly fills the enclosed space. Due to the effect of the gas pressure and one end of the first shaft pin connected to the base frame through the easy-to-cut connector, the pusher slides relative to the power unit in the direction away from the first shaft pin. Since the other end of the first shaft pin is connected to the pusher, it is subjected to the pulling force of the pusher. When the pulling force reaches the peak, the easy-to-cut connector breaks. Under the pulling action of the pusher, the first shaft pin moves toward the direction of the pusher until the first shaft pin is completely moved into the cavity of the power unit. The first shaft pin loses its hanging function, and one end of the limit clamp connected to the first shaft pin is disengaged from the first shaft pin, so that the limit clamp is opened and the airdrop is loosened. After the airdrop is disengaged from the limit clamp, the connection with the sling and the parachute is loosened, and finally it sinks smoothly into the sea by its own gravity. The utility model has a simple structure and can realize automatic separation of the parachute and the airdropped objects in the sea water, so as to prevent the airdropped objects from continuing to be connected to the parachute with greater buoyancy and being unable to sink after landing on the sea surface, and prevent the parachute from drifting with the ocean current with the airdropped objects, thereby enabling the airdropped objects to sink into the sea as expected. The utility model is particularly suitable for promotion and use in certain scenarios where it is necessary to airdrop materials at sea. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the position-limiting clamp of the utility model;

[0030] Figure 3 It is a schematic diagram of the combination of the automatic separation device and the water-triggering device;

[0031] Figure 4 It is a left side view of the combination of the automatic separation device and the water-triggering device;

[0032] Figure 5 It is a right side view of the combination of the automatic separation device and the water-triggering device;

[0033] Figure 6 It is a cross-sectional view of the automatic separation device and the water-triggering device;

[0034] In the figure:

[0035] 1-automatic separation device, 11-first shaft pin, 12-second shaft pin, 13-power unit, 14-cavity, 15-wiring harness connector, 16-gas generator, 17-pushing member, 18-exhaust hole, 19-base frame;

[0036] 2-water trigger device, 21-circuit board, 211-copper contact, 22-battery, 23-connecting wire, 24-connecting terminal;

[0037] 3-limiting hoop, 31-steel belt, 311-hanging piece, 32-wrapping belt, 33-pin;

[0038] 4- Suspension strap;

[0039] 5- Airdrops;

[0040] 61-first sealing ring, 62-second sealing ring, 63-screw, 64-easy-to-cut connector. DETAILED DESCRIPTION

[0041] The utility model will be further described in detail below.

[0042] like Figure 1 As shown, an overwater airdrop device capable of automatically separating airdropped objects comprises a limit clamp 3, a hanging belt 4, a water-triggering device 2, an automatic separation device 1, etc.

[0043] The limiting clamp 3 is provided with an opening, which can be used to clamp the airdrop 5 when the opening is closed to prevent the airdrop 5 from slipping during takeoff.

[0044] like Figure 2 As shown, specifically, the limiting clamp 3 includes a steel belt 31, a wrapping belt 32 and a pin 33; one end of the steel belt 31 is sleeved and hung on the first axial pin 11, one end of the wrapping belt 32 is connected to the base frame 19, and the pin 33 is simultaneously passed through the other end of the steel belt 31 and the other end of the wrapping belt 32 to connect the steel belt 31 and the wrapping belt 32 together; a limiting space for clamping the airdropped object 5 is formed between the steel belt 31 and the wrapping belt 32.

[0045] A hanging piece 311 protruding outward is provided on the steel belt 31 , the lower end of the hanging belt 4 is connected to the hanging piece 311 , and the upper end of the hanging belt 4 is used to connect the parachute.

[0046] Preferably, the strap 32 is a soft webbing with greater friction, so that the airdropped object 5 is not easy to slip off; the length of the strap 32 can be adjusted to accommodate airdropped objects 5 of different sizes.

[0047] In this embodiment, there are two limit clamps 3, which respectively clamp the two ends of the airdrop 5 to strengthen the fixing force of the airdrop 5, prevent the airdrop 5 from falling off from the limit clamp 3, and enable the airdrop 5 to be in a horizontal balance state during the airdrop process. Due to the metal properties of the steel belt 31, in order to prevent the steel belt 31 from scratching the airdrop in the process of clamping the airdrop, the soft pad inside the steel belt 31 fits with the airdrop to play a buffering role.

[0048] The automatic separation device 1 is used to lock the airdrop object 5 during the airdrop process, and when it lands on the sea surface, it is automatically activated by the water trigger device 2, thereby achieving the purpose of separating the airdrop object 5 and allowing the airdrop object 5 to land smoothly in the sea.

[0049] The automatic separation device 1 in this embodiment adopts the patent technology applied for by the applicant on December 1, 2023, and its application number is 202323273494.4.

[0050] like Figure 3-Figure 6 As shown, specifically, the automatic separation device 1 includes a base frame 19, a first shaft pin 11, a second shaft pin 12, an easy-to-cut connector 64, a wiring harness connector 15, a gas generator 16, and a pusher 17;

[0051] The base frame 19 includes a power unit 13, and the power unit 13 is provided with a cavity 14;

[0052] One end of the first axle pin 11 is connected to the base frame 19 via an easy-to-shear connector 64 , and the other end is connected to the pusher 17 .

[0053] Preferably, the easy-to-shear connector 64 is an easy-to-shear screw, and the other end of the first axle pin 11 is inserted and fixed on the base frame 19 in a threaded connection manner through the easy-to-shear screw.

[0054] The power part 13 is sleeved with a first sealing ring 61, and the pusher 17, the first shaft pin 11 and the first sealing ring 61 are all slidably connected to the inner wall of the cavity 14 of the power part 13, and the pusher 17, the first shaft pin 11, the first sealing ring 61 and the power part 13 form a closed space;

[0055] The pusher 17 is provided with an exhaust hole 18, and the exhaust hole 18 is connected to the enclosed space. The gas generator 16 is connected to the exhaust hole 18; the gas emission direction of the gas generator 16 is toward the exhaust hole 18, and the gas generated by the gas generator 16 is discharged into the enclosed space through the exhaust hole 18.

[0056] The wiring harness connector 15 is electrically connected to the gas generator 16;

[0057] The second shaft pin 12 is arranged at one side of the first shaft pin 11 and fixed to the base frame 19. One end of the steel belt 31 is sleeved and hung on the first shaft pin 11, and one end of the wrapping belt 32 is sleeved on the second shaft pin 12.

[0058] The water-triggering device 2 is electrically connected to the wiring harness connector 15 , and is used to activate the gas generator 16 via the wiring harness connector 15 .

[0059] The water-triggering device 2 is an electronic device installed at the tail of the automatic separation device 1. Its function is to sense electricity when the airdropped object 5 encounters seawater when it lands on the sea surface, triggering the automatic separation device 1 to automatically separate the airdropped object from the parachute.

[0060] Specifically, the base frame 19 of the automatic separation device 1 is sleeved on the water-triggering device 2 , and the two are fixedly connected by screws 63 . A waterproof sealing device, preferably a second sealing ring 62 , is provided at the connection between the water-triggering device 2 and the base frame 19 .

[0061] The water-triggering device 2 includes a circuit board 21, a battery 22, a connecting wire 23 and a connecting terminal 24.

[0062] The circuit board 21 is provided with two exposed metal contacts, preferably copper contacts 211. The copper contacts 211 are affixed with an anti-false trigger film, which is an insulator to avoid unintentional misoperation and triggering. The anti-false trigger film needs to be torn off before use.

[0063] The battery 22 is preferably a carbon fluoride battery, which is electrically connected to the circuit board 21 and the connection terminal 24 through the connecting wire 23, and the connection terminal 24 is connected to the wiring harness connector 15. When the water-triggering device 2 lands on the sea, the two exposed copper contacts 211 contact the seawater to form a short circuit, thereby turning on the circuit board 21. After the circuit board 21 is turned on, it generates current, and activates the automatic separation device 1 through the connection terminal 24 and the wiring harness connector 15. The gas generator 16 instantly generates a large amount of gas, and the gas is transported through the exhaust hole 18 to the enclosed space formed by the pusher 17, the first shaft pin 11, the first sealing ring 61 and the power unit 13. The gas instantly fills the enclosed space. Due to the effect of the gas pressure, one end of the first shaft pin 11 is connected to the base frame through the easy-to-cut connector 64. 19, so the pusher 17 slides relative to the power unit 13 in the direction away from the first shaft pin 11. Since the other end of the first shaft pin 11 is connected to the pusher 17, it is subjected to the pulling force of the pusher 17. When the pulling force reaches the peak, the easy-to-shear connector 64 breaks. Under the pulling action of the pusher 17, the first shaft pin 11 moves in the direction of the pusher 17 until the first shaft pin 11 is completely moved into the cavity 14 of the power unit 13. The first shaft pin 11 loses its hanging function, and the steel belt 31 originally connected to the first shaft pin 11 is detached from the first shaft pin 11, so that the limit clamp 3 is opened, and the airdrop 5 is loosened. After the airdrop 5 is detached from the limit clamp 3, the connection with the hanging belt 4 and the parachute is loosened, and finally it sinks smoothly into the sea by its own gravity.

[0064] The parameters of the water-triggering device 2 are shown in the following table.

[0065] Carbon fluoride battery size 25mm*25mm*5mm(0.1g) Response time ≯0.5s Maximum discharge current 10A capacity 550mAh Nominal voltage 3V Applicable temperature (-25℃-65℃) Startup method Automatically triggered when encountering water

[0066] Overall operation process of the marine airdrop system:

[0067] 1. Install and load the airdrop system before the aircraft takes off, and perform inspection and debugging, and fix the suspension belt or parachute rope to the fixed point of the aircraft;

[0068] 2. The aircraft arrives at the predetermined area, and the airdrop 5 separates from the aircraft, and the airdrop 5 falls downward under the action of gravity;

[0069] 3. When the airdropped object 5 falls a certain distance, the guide parachute is pulled out by the suspension belt connected to the aircraft to inflate, or the guide parachute is pulled out by the parachute opening rope in conjunction with the delayed parachute opener to inflate the guide parachute;

[0070] 4. After the guide parachute is deployed, an upward pulling force is generated on the parachute bag, the hanging belt 4 and the group lifting belt are straightened, the package rope needle is pulled out, the bottom package of the parachute bag is released, and the parachute rope and the parachute canopy are taken out of the parachute bag and straightened in sequence;

[0071] 5. Inflate the main parachute until it is fully deployed;

[0072] 6. Under the action of the main parachute, the standard body enters the stable descent stage;

[0073] 7. When the target body contacts the seawater, the copper contact 211 of the water trigger device 2 conducts the circuit, triggering the automatic separation device 1 to activate the explosion, and the limit clamp 3 is released from the first shaft pin 11 to separate the parachute, and the airdrop process is completed.

[0074] The utility model has a simple structure and can realize automatic separation of the parachute and the airdrop object 5 in seawater, so as to prevent the airdrop object 5 from continuing to be connected to the parachute with greater buoyancy and being unable to sink after landing on the sea surface, thereby enabling the airdrop object 5 to sink into the sea as expected. The utility model is particularly suitable for promotion and use in certain scenarios where materials need to be airdropped at sea.

[0075] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An overwater aerial drop device capable of automatically separating aerial drop objects, characterized in that: It includes a base frame, a first axle pin, an easy-to-cut connector, a wiring harness connector, a gas generator, a pusher, a hanging belt, a water-trigger device and a limit clamp for holding the airdropped object; The base frame includes a power unit, and the power unit is provided with a cavity; One end of the first axle pin is connected to the base frame through the easy-to-shear connector, and the other end is connected to the pushing member; The pusher is sleeved with a first sealing ring, the pusher, the first pin and the first sealing ring are all slidably connected to the cavity, and the pusher, the first sealing ring, the first shaft pin and the power unit form a closed space; The pusher is provided with an exhaust hole, the exhaust hole is connected to the enclosed space, and the gas generator is connected to the exhaust hole; The wiring harness connector is electrically connected to the gas generator; One end of the sling is connected to the limit hoop, and the other end is used to connect the parachute; One end of the limiting clamp is sleeved on the first shaft pin, and the other end is connected to the base frame; The water-triggering device is electrically connected to the wiring harness connector.

2. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 1, characterized in that: The limiting clamp includes a steel belt, a wrapping belt, a cushion and a pin; one end of the steel belt is sleeved on the first axial pin, one end of the wrapping belt is connected to the base frame, and the pin is simultaneously passed through the other end of the steel belt and the other end of the wrapping belt; the cushion is adhered to the inner side of the steel belt, the hanging belt is connected to the steel belt, and a limiting space for clamping the airdropped objects is formed between the steel belt and the wrapping belt.

3. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 2, characterized in that: The steel belt is provided with a hanging piece protruding outward, and the hanging belt is connected to the hanging piece.

4. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 2, characterized in that: The strap is a soft webbing.

5. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 3, characterized in that: The base frame is provided with a second axle pin, the second axle pin is arranged on one side of the first axle pin, and the wrapping belt is sleeved on the second axle pin.

6. An overwater aerial delivery device capable of automatically separating aerial delivery objects according to any one of claims 1 to 5, characterized in that: The water-triggered device comprises a circuit board, a battery and a connecting terminal. The circuit board is provided with two exposed metal contacts. The battery is electrically connected to the circuit board and the connecting terminal respectively. The connecting terminal is connected to the wiring harness connector.

7. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 6, characterized in that: The metal contact is a copper contact, and an anti-false triggering film is attached to the copper contact.

8. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 6, characterized in that: The battery is a carbon fluoride battery.

9. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 7, characterized in that: The water-triggering device is connected to the base frame by screws, and a second sealing ring is provided at the connection between the water-triggering device and the base frame.

10. The above-water aerial delivery device capable of automatically separating aerial delivery objects according to claim 1, characterized in that: Both ends of the airdropped object are provided with correspondingly installed limit clamps and water-triggering devices.

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