A helicopter external airdrop release device

Abstract

The application discloses a helicopter external air-drop release device, which comprises a suspension system, a release device, a parachute system and a cargo system, the upper end of the suspension system is connected with a helicopter, the lower end of the suspension system is connected with the release device, the release device is connected with the main parachute system, and the cargo system is hung on the main parachute system. The helicopter external air-drop release device has simple implementation, realizes separation of a hanging belt and an air-drop system, effectively reduces possible interference problems in the parachute opening process, and improves the air-drop success rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air drop, in particular to a release device for helicopter external air drop. BACKGROUND

[0002] With the development of aviation field, helicopters are increasingly popular in military and civilian fields, and the application scenarios of helicopter external air drop are gradually increasing. The helicopter external air drop technology is an important technology of air drop equipment, which can greatly improve the mobility of air drop combat and the support and supply capacity of troops in complex combat conditions.

[0003] The helicopter external air drop in China mainly involves a suspension system, a release device, a parachute system, a navigation control system and a cargo system. In the commonly used helicopter external air drop scheme, the suspension belt connected with the release device is generally connected to the outer frame of the cargo platform or the navigation control box. After the release device is started, the suspension belt falls with the air drop system, which may interfere with the parachute opening process. In order to realize a more effective and safe helicopter external air drop process and reduce the interference problem between the main parachute and the suspension belt in the parachute opening process of the helicopter external air drop, a new type of helicopter external air drop release method needs to be researched to meet the needs of helicopter external air drop. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a release device for helicopter external air drop, which is simple to implement, separates the suspension belt from the air drop system, effectively reduces the interference problem that may exist in the parachute opening process, and improves the air drop success rate.

[0005] The technical solution adopted by the present application to solve the above technical problem is:

[0006] A release device for helicopter external air drop, comprising a suspension system, a release device, a suspension program belt, a release program belt, a parachute system and a cargo system, the upper end of the suspension system is connected with a helicopter, the lower end of the suspension system is connected with the release device, the release device is connected with the parachute system through the suspension program belt and the release program belt, and the cargo system is hung on the parachute system.

[0007] According to the above technical solution, the suspension system comprises a suspension cable, a cable counterweight and a first lifting belt, the upper end of the suspension cable is connected with a winch of a helicopter, the lower end of the suspension cable is connected with the upper end of the cable counterweight and the first lifting belt through a suspension bracket ring, and the lower end of the first lifting belt is connected with the release device through a suspension bracket ring.

[0008] According to the above technical solution, the parachute system includes a main parachute system and a navigation control box. The main parachute inside the main parachute system is connected to the navigation control box through a third sling, and the navigation control box is connected to the cargo system through a second sling. Before the main parachute system is opened, the parachute bag outside the main parachute system and the outside of the navigation control box are tied together and fixed by two binding straps, and the binding straps are released together with the hanging program straps.

[0009] According to the above technical solution, the main parachute system includes a main parachute and a parachute bag. Inside, the main parachute is connected to the navigation control box through a third sling. The two ends of the third sling are respectively connected to the main parachute and the navigation control box of the main parachute system through suspension frame rings. The main parachute and the navigation control box are connected together internally through the third sling and the suspension frame ring.

[0010] According to the above technical solution, the locking hook at the lower end of the releasing device is connected to the hanging rings of the suspension frame arranged around the umbrella system through multiple hanging program belts.

[0011] According to the above technical solution, there are four hanging program belts, the upper ends of which are connected to the locking hooks, and the lower ends of which are connected to the hanging rings of the suspension frame provided at the four corners of the parachute system; the lower end of the release program belt is divided into four cables, which are arranged one by one with the four hanging program belts;

[0012] Each hanging program belt is provided with a metal ring, and a binding tie-down belt is connected between the two metal rings at the diagonal angles of the umbrella system; the two binding tie-down belts are respectively passed through the metal rings to tighten the diagonal hanging program belts in pairs.

[0013] According to the above technical solution, the upper end of the release program belt is sleeved on the connection between the upper end of the release device and the hanging frame ring. The lower end of the release program belt is divided into multiple cables, each cable is connected to a pin. The multiple cables are arranged one by one corresponding to the hanging program belt and connected to the hanging frame rings around the parachute system.

[0014] The lower end of each hanging program belt is provided with a ring sleeve, and the hanging rings of the suspension frame around the umbrella system are provided with a ring rope. The upper end of the ring rope is inserted into the ring sleeve of the corresponding hanging program belt and is sleeved on the corresponding pin.

[0015] According to the above technical solution, a parachute opening program belt is also provided on one side of the release device, the upper end of the parachute opening program belt is connected to the upper end of the release program belt, and the lower end of the parachute opening program belt is connected to the parachute bag top rope of the main parachute.

[0016] According to the above technical solution, when the release device is activated and the locking hook is disengaged, the hanging program belt and the main parachute system fall freely under the action of their own gravity, the release program belt is straightened, and the pins at the end of the release program belt are pulled out at the same time, and the hanging program belt is separated from the airdrop main parachute system.

[0017] Furthermore, bolt holes are provided at the four corners of the upper end of the navigation control box, and a loop rope is provided on each bolt. The loop rope is passed through the lower end of the hanging program belt and fixed with the pin at the end of the release program belt; before the pin at the end of the release program belt is pulled out, the hanging program belt can normally complete the load-bearing hanging task.

[0018] According to the above technical solution, a connecting belt is also connected to the locking hook of the release device, and the lower end of the connecting belt is connected to the parachute bag pulling rope of the main parachute; the connecting belt is used to connect the hanging program belt, the binding retention belt and the locking hook of the release device to the parachute bag of the main parachute, and land with the helicopter for easy recovery.

[0019] According to the above technical solution, the cargo system includes a hanging net and rescue supplies through a connecting rotor. The upper end of the connecting rotor is connected to the second sling, and the rescue supplies are connected to the lower end of the connecting rotor through the hanging net.

[0020] The present invention has the following beneficial effects:

[0021] 1. The present invention is simple to implement and can realize the separation of the hanging belt and the airdrop system, effectively reducing the interference problem that may exist during the parachute opening process and improving the success rate of airdrop.

[0022] 2. When the release device is activated, the locking hook disengages, and under the action of its own gravity, the hanging program belt and the main parachute system fall freely, the release program belt is straightened, and the pins at the end of the release program belt are pulled out at the same time. The hanging program belt and the two binding tie-down belts are separated from the airdrop main parachute system together; this can achieve the purpose of reducing the interference problem between the main parachute and the hanging belt during the helicopter external airdrop process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1. It is a schematic diagram of the state of the release device of the helicopter external airdrop before airdrop in an embodiment of the present invention;

[0024] Figure 2 1 is a schematic diagram of the state of the release device of the helicopter external airdrop after airdrop in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation of the hanging program belt and the binding tie-down belt in an embodiment of the present invention;

[0026] Figure 4 yes Figure 2 K partial views of;

[0027] Figure 5 yes Figure 4 M partial view;

[0028] In the figure, 1-helicopter, 2-suspension steel cable, 3-steel cable counterweight, 4-first sling, 5-release device, 6-hanging procedure belt, 7-main parachute system, 8-second sling, 9-connecting swivel, 10-cargo system, 11-parachute opening procedure belt, 12-release procedure belt, 13-connecting belt, 14-parachute bag, 15-tear belt, 16-suspension frame hanging ring, 17-loop rope, 18-third sling, 19-binding mooring belt, 20-square metal ring. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0030] Reference Figures 1 to 5 As shown, a helicopter external airdrop release device in an embodiment provided by the present invention includes a suspension system, a release device 5, a hanging program belt 6, a release program belt 12, a parachute system and a cargo system. The upper end of the suspension system is connected to the winch of the helicopter, and the lower end of the suspension system is connected to the release device 5. The release device 5 is connected to the parachute system through the hanging program belt 6 and the release program belt 12, and the cargo system is hung at the lower end of the parachute system.

[0031] Furthermore, the suspension system includes a suspension cable 2, a cable counterweight 3 and a first sling 4. The upper end of the suspension cable 2 is connected to the winch of the helicopter 1, and the lower end of the suspension cable 2 is connected to the cable counterweight 3 and the upper end of the first sling 4 through the suspension frame ring 16. The lower end of the first sling is connected to the release device 5 through the suspension frame ring 16; the suspension cable 2 is used to maintain a safe distance between the airdrop equipment and the helicopter during the lifting process; the cable counterweight 3 is used to counterweight the suspension system to prevent the system from being too light and floating after airdrop, affecting flight safety.

[0032] The parachute system includes a main parachute system 7 and a navigation control box. The main parachute inside the main parachute system 7 is connected to the navigation control box through a third sling 18, and the navigation control box is connected to the cargo system through a second sling 8; the parachute bag 14 outside the main parachute system 7 and the outside of the navigation control box are tied together and fixed by two binding tethers 19, and the binding tethers 19 are released together with the hanging program belt 6.

[0033] Furthermore, the main parachute system includes a main parachute and a parachute bag. Inside, the main parachute is connected to the navigation control box through a third sling. The two ends of the third sling 18 are respectively connected to the main parachute and the navigation control box of the main parachute system 7 through the suspension frame ring 16. The main parachute and the navigation control box are connected together internally through the third sling 18 and the suspension frame ring 16.

[0034] Furthermore, the locking hook of the release device 5 is connected to the suspension frame hanging rings 16 around the parachute system through multiple hanging program belts 6; after the release device 5 is activated, the locking hook is detached from the release device 5 for launching the airdrop system;

[0035] Further, the number of hanging procedure belts 6 is 4, the upper ends of the 4 hanging procedure belts 6 are connected with the hooks, and the lower ends of the 4 hanging procedure belts 6 are respectively connected with the suspension frame hanging rings 16 of the four corners of the parachute system; the lower end of the release procedure belt 12 is divided into 4 strands of cables, and the 4 strands of cables are arranged one by one with the 4 hanging procedure belts 6.

[0036] Each of the hanging procedure belts 6 is provided with a square metal ring 20, and two square metal rings 20 opposite to each other of the parachute system are connected with a binding tethering belt 19; the two binding tethering belts 19 are respectively threaded through the square metal rings 20 to tighten the two hanging procedure belts 6 opposite to each other.

[0037] Further, the upper end of the release procedure belt 12 is sleeved on the connection between the upper end of the release device 5 and the suspension frame hanging ring 16, the lower end of the release procedure belt 12 is divided into a plurality of strands of cables, each strand of cable is connected with a plug, and the plurality of strands of cables are respectively arranged one by one with the hanging procedure belts 6 and connected with the suspension frame hanging rings 16 around the parachute system.

[0038] The lower end of each of the hanging procedure belts 6 is provided with a ring sleeve, each of the suspension frame hanging rings 16 around the parachute system is provided with a grommet cable 17, the upper end of the grommet cable 17 is threaded into the ring sleeve of the corresponding hanging procedure belt 6 and sleeved on the corresponding plug; the lower end of the release procedure belt 12 is respectively inserted and fixed with the corresponding grommet cable 17 and the hanging procedure belt 6 according to the requirements, and used for releasing the hanging procedure belt 6 and the binding tethering belt 19 from the main parachute and the navigation control box during the air drop process.

[0039] Further, one side of the release device is also provided with an opening parachute procedure belt 11, the upper end of the opening parachute procedure belt 11 is sleeved together with the upper end of the release procedure belt 12, and the lower end of the opening parachute procedure belt 11 is sleeved together with the canopy pulling top rope of the main parachute; used for pulling the canopy 14 to make the main parachute separate from the canopy 14 during the air drop process.

[0040] Further, when the release device 5 is started, the hook is separated, and under the action of its own gravity, the hanging procedure belt 6 and the main parachute system are free falling, the release procedure belt 12 is straightened, and after the plugs at the ends of the four release procedure belts 12 are pulled out at the same time, the four hanging procedure belts 6 and the two binding tethering belts 19 are separated from the air drop main parachute system; the purpose of reducing the interference between the main parachute and the hanging belt in the process of the helicopter external air drop can be achieved.

[0041] Further, the upper end of the navigation control box is provided with bolt holes at four corners, each bolt is provided with a grommet cable 17, the grommet cable 17 is threaded through the lower end of the hanging procedure belt 6 and fixed by the plug at the end of the release procedure belt 12; before the plug at the end of the release procedure belt 12 is pulled out, the hanging procedure belt 6 can normally complete the task of force hanging.

[0042] Furthermore, a connecting belt 13 is connected to the locking hook of the release device 5, and the lower end of the connecting belt 13 is connected to the parachute bag pull rope of the main parachute; it is used to connect the hanging program belt 6, the binding mooring belt 19 and the locking hook of the release device 5 with the parachute bag 14 of the main parachute, and land with the helicopter for easy recovery.

[0043] Furthermore, the cargo system includes a hanging net and rescue supplies through the connecting rotor 9. The upper end of the connecting rotor 9 is connected to the second sling 8, and the rescue supplies are connected to the lower end of the connecting rotor 9 through the hanging net; it is used to prevent the rotation of the cargo during the airdrop process from driving the rotation of the navigation control box and the main parachute, affecting the flight state of the main parachute during the airdrop process.

[0044] The above are only preferred embodiments of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope of protection of the present invention.

Claims

1. A helicopter external airdrop release device, characterized in that: The invention comprises a suspension system, a release device (5), a suspension program belt (6), a release program belt (12), a parachute system and a cargo system, wherein the upper end of the suspension system is connected to the helicopter, the lower end of the suspension system is connected to the release device (5), the release device (5) is connected to the parachute system through the suspension program belt (6) and the release program belt (12), and the cargo system is hung on the parachute system; The locking hook at the lower end of the release device (5) is connected to the four sides of the parachute system through a plurality of hanging program belts (6); The upper end of the release program belt (12) is sleeved on the upper end of the release device (5), and the lower end of the release program belt (12) is divided into multiple cables, each cable is connected to a pin, and the multiple cables are arranged in a one-to-one correspondence with the hanging program belt (6) and connected to the hanging frame hanging rings (16) around the parachute system; The lower end of each hanging program belt (6) is provided with a ring sleeve, and the hanging rings (16) of the suspension frame around the umbrella system are provided with a ring rope (17). The upper end of the ring rope (17) is inserted into the ring sleeve of the corresponding hanging program belt (6) and is sleeved on the corresponding pin.

2. The helicopter external hanging airdrop release device according to claim 1 is characterized in that: The suspension system comprises a suspension steel cable (2), a steel cable counterweight (3) and a first sling (4); the upper end of the suspension steel cable (2) is connected to a winch of the helicopter (1); the lower end of the suspension steel cable (2) is connected to the steel cable counterweight (3) and the upper end of the first sling (4) via a suspension frame hanging ring (16); and the lower end of the first sling is connected to a release device (5) via a suspension frame hanging ring (16).

3. The helicopter external hanging airdrop release device according to claim 1 is characterized in that: The parachute system comprises a main parachute system (7) and a navigation control box. The interior of the main parachute system (7) is connected to the navigation control box via a third sling (18), and the navigation control box is connected to the cargo system via a second sling (8); the exterior of the main parachute system (7) and the exterior of the navigation control box are bound and fixed together via a binding tie.

4. The helicopter external hanging airdrop release device according to claim 1, characterized in that: The number of hanging program belts (6) is 4, the upper ends of the 4 hanging program belts (6) are connected to the lock hooks, and the lower ends of the 4 hanging program belts (6) are respectively connected to the suspension frame hanging rings (16) provided at the four corners of the parachute system; the lower end of the release program belt (12) is divided into 4 strands of cables, and the 4 strands of cables are arranged in a one-to-one correspondence with the 4 hanging program belts (6); Each hanging program belt (6) is provided with a metal ring (20), and a binding tie belt (19) is connected between two metal rings (20) at opposite corners of the umbrella system.

5. The helicopter external hanging airdrop release device according to claim 1, characterized in that: A parachute opening program belt (11) is further provided on one side of the release device. The upper end of the parachute opening program belt (11) is sleeved with the upper end of the release program belt (12), and the lower end of the parachute opening program belt (11) is sleeved with the parachute bag top rope of the main parachute.

6. The helicopter external hanging airdrop release device according to claim 1, characterized in that: When the release device (5) is activated, the lock hook is disengaged, and under the action of its own gravity, the hanging program belt (6) and the main parachute system fall freely, the release program belt (12) is straightened, and the pins at the end of the release program belt (12) are pulled out at the same time, and the hanging program belt (6) is separated from the airdrop main parachute system.

7. The helicopter external hanging airdrop release device according to claim 1, characterized in that: The lock hook of the release device (5) is also connected to a connecting belt (13), and the lower end of the connecting belt (13) is connected to the parachute bag pull rope of the main parachute; the connecting belt (13) is used to connect the hanging program belt (6), the binding tie belt (19) and the lock hook of the release device (5) with the parachute bag (14) of the main parachute, so that they land together with the helicopter for easy recovery.

8. The helicopter external hanging airdrop release device according to claim 1, characterized in that: The helicopter external airdrop release device further comprises a connecting rotor (9), the cargo system comprises a hanging net and rescue supplies, the upper end of the connecting rotor (9) is connected to the second sling (8), and the rescue supplies are connected to the lower end of the connecting rotor (9) via the hanging net.

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