High-altitude balloon self-destruction device and high-altitude balloon system

Abstract

The invention relates to the technical field of aerostats, and provides a high-altitude balloon self-destruction device and a high-altitude balloon system.The high-altitude balloon self-destruction device comprises a mounting frame, the mounting frame is provided with a first mounting part, and the first mounting part is used for being fixedly connected with a dome flange of a high-altitude balloon; the hob is provided with a first end and a second end on the axis of the hob, the first end is connected to the mounting frame through a safety piece, the second end is used for being connected with a traction rope, and the hob can be separated from the mounting frame under the action of the traction rope and cut the balloon film of the high-altitude balloon. After a flight task is finished and the balloon-parachute cabin is separated, the parachute can pull the traction rope to trigger the hob of the high-altitude balloon self-destruction device to destroy the balloon membrane, so that the balloon safely lands back to a preset area, and the safety problem that the balloon body of the high-altitude balloon uncontrollably flies at high altitude for a long time is avoided; in addition, the high-altitude balloon can be prevented from being in direct contact with the balloon film soft structure in the releasing process, and the safety of the balloon releasing process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of aerostats, and in particular to a high-altitude balloon self-destruction device and a high-altitude balloon system. Background Art

[0002] A high-altitude balloon is a thin-film structure aircraft made of high-molecular polyethylene material. The shape of the sphere is mostly an inverted water drop or a regular sphere. The interior of the sphere is filled with buoyancy gas, which provides buoyancy for the system and maintains the flight altitude. A spherical top flange is provided on the top of the sphere. During the balloon processing stage, the spherical top flange is used to laminate the thin film diaphragms together to increase the strength of the top structure. An exhaust valve is provided on the spherical top flange to adjust the amount of buoyancy gas inside the sphere. A towing rope is used to connect the parachute to the pod at the bottom of the ball. High-altitude balloons include zero-pressure balloons and super-pressure balloons. Both are unpowered aircraft that move with the flow of the upper atmosphere. The flight altitude can only be adjusted by the exhaust valve, and the flight direction can be adjusted by finding wind layers in different directions on the vertical section.

[0003] The flight control of the sphere generally includes exhaust, sand throwing and cutting landing. When performing the cutting landing operation, the connecting cable between the bottom of the sphere and the parachute is cut, and the sphere and parachute are separated after cutting. After the sphere rises quickly for a distance, it may explode due to the rapid increase in pressure inside the sphere, or it may automatically exhaust air through the exhaust pipe and reach buoyancy and weight balance again at a new altitude. At this time, the high-altitude balloon has no pod, and it is impossible to determine the position coordinates, altitude, moving direction and speed of the sphere, which poses a hidden danger to the flight safety of other aircraft, especially the safety of civil aviation, and even causes diplomatic disputes. Summary of the invention

[0004] The invention provides a high-altitude balloon self-destruction device and a high-altitude balloon system, which are used to solve the problem of flight safety caused by the high-altitude balloon flying freely after being cut and separated from the parachute in the prior art.

[0005] The present invention provides a high-altitude balloon self-destruction device, comprising: A mounting frame, wherein the mounting frame is provided with a first mounting portion, wherein the first mounting portion is used for fixedly connecting with a top flange of a high-altitude balloon; A roller cutter has a first end and a second end on its axis, the first end is connected to the mounting frame through a safety member, and the second end is used to connect a traction rope. The roller cutter can be separated from the mounting frame and cut the membrane of the high-altitude balloon under the action of the traction rope.

[0006] According to a high-altitude balloon self-destruction device provided by the present invention, the mounting frame is a frame structure, a receiving space is formed inside the frame structure, the roller is accommodated in the receiving space, the first mounting portion is arranged at the bottom of the frame structure, the first mounting portion is provided with a first mounting hole, and the mounting frame is fixedly connected to the ball top flange by a connecting piece penetrating through the first mounting hole.

[0007] According to a high-altitude balloon self-destruction device provided by the present invention, the safety component is a safety rope, the first end is provided with a tool holder hole, the safety rope is passed through the tool holder hole and connects the roller and the mounting frame.

[0008] According to a high-altitude balloon self-destruction device provided by the present invention, the mounting frame is provided with a mounting column, the mounting column is arranged to be inclined downward relative to a horizontal plane, the mounting column is arranged coaxially with the hob, and the first end is sleeved on the mounting column.

[0009] According to a high-altitude balloon self-destruction device provided by the present invention, the mounting frame is further provided with a load-bearing column, and the mounting column is fixed on the load-bearing column; The first end is provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part are provided with a tool holder hole, the safety piece is passed through the tool holder hole and connects the first connecting part and the second connecting part, and the load-bearing column is limited to a space enclosed by the first connecting part, the second connecting part and the safety piece.

[0010] According to a high-altitude balloon self-destruction device provided by the present invention, the roller cutter comprises: The tool holder is provided with a plurality of second mounting parts, and the plurality of second mounting parts are centrally symmetrically arranged relative to the axis; A blade is detachably connected to each mounting portion.

[0011] According to a high-altitude balloon self-destruction device provided by the present invention, the tool holder further comprises: A fixing member, wherein the mounting position is provided with a slot, the blade is inserted into the slot, and the blade is detachably connected to the first mounting portion through the fixing member.

[0012] According to a high-altitude balloon self-destruction device provided by the present invention, the blade is extended along the direction of the axis, the blade edge is inclined relative to the axis, and the distance between the blade edge and the axis gradually increases from the second end to the first end.

[0013] According to a high-altitude balloon self-destruction device provided by the present invention, the roller cutter further comprises: A ring screw, wherein the threaded end of the ring screw is threadably connected to the second end, and the ring end of the ring screw is connected to the traction rope.

[0014] The present invention also provides a high-altitude balloon, comprising: a sphere, a parachute, a traction rope and any one of the above-mentioned high-altitude balloon self-destruction devices; the parachute is connected to the lower end of the sphere, the top of the sphere is provided with a spherical top flange, the high-altitude balloon self-destruction device is fixed to the spherical top flange through the mounting frame, one end of the traction rope is connected to the roller, and the other end is connected to the parachute.

[0015] The high-altitude balloon self-destruction device and high-altitude balloon system provided by the present invention are provided with a mounting frame and a roller, the mounting frame is installed on the top flange of the high-altitude balloon through a first mounting part, the first end of the roller is connected to the mounting frame through a safety piece, and the second end of the roller is connected to the parachute through a traction rope. After the flight mission is completed and the parachute cabin is separated, the parachute will pull the traction rope to trigger the roller to destroy the balloon membrane, so that the sphere safely lands back to the predetermined area, and the landing point is close to the landing point of the parachute, avoiding the safety problem of the high-altitude balloon sphere flying uncontrollably for a long time at high altitude. The high-altitude balloon self-destruction device is a self-responsive structural design, which is purely mechanically triggered, does not require circuit control, and reduces the complexity of system control. Since the self-destruction device is installed on the top flange of the ball, it can avoid the high-altitude balloon from directly contacting the soft structure of the ball membrane during the release process, ensuring the safety of the balloon release process, and the mounting frame is connected to the top flange of the ball, so that the high-altitude balloon self-destruction device has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the high-altitude balloon system provided by the present invention.

[0018] Figure 2 The figure is a schematic diagram of the installation of the high-altitude balloon self-destruction device provided by the present invention.

[0019] Figure 3 It is an isometric view of the high-altitude balloon self-destruction device provided by the present invention.

[0020] Figure 4 It is an axonometric view of a mounting frame in the high-altitude balloon self-destruction device provided by the present invention.

[0021] Figure 5 It is a front view of the mounting frame in the high-altitude balloon self-destruction device provided by the present invention.

[0022] Figure 6It is an isometric view of a roller in the high-altitude balloon self-destruction device provided by the present invention.

[0023] Figure 7 The present invention is a schematic diagram of the structure of a roller in the high-altitude balloon self-destruction device.

[0024] Figure 8 It is a front view of the high-altitude balloon self-destruction device provided by the present invention.

[0025] Reference numerals: 1. sphere; 2. parachute; 3. traction rope; 4. high-altitude balloon self-destruction device; 41. mounting frame; 410. accommodating space; 411. first mounting part; 4111. first mounting hole; 412. mounting column; 413. load-bearing column; 42. hob; 42a. first end; 42b. second end; 421. tool holder; 4211. second mounting part; 42111. slot; 4212. positioning hole; 4213. first connecting part; 4214. second connecting part; 4215. tool holder hole; 422. blade; 423. fixing piece; 424. eye screw; 43. connecting piece; 44. safety piece; 5. ball top flange; 6. exhaust valve; 7. pod; 8. connecting cable; 9. pyrotechnics. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "first", "second" and "third" are for the purpose of clearly describing the numbering of product components and do not represent any substantial difference. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances. In addition, "multiple" means two or more. "And / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0028] Combine the following Figure 1-Figure 8 The high-altitude balloon self-destruction device and the high-altitude balloon system of the present invention are described.

[0029] like Figure 1 As shown, the flight posture of the high-altitude balloon system provided by an embodiment of the present invention when performing a flight mission in near space, the high-altitude balloon system comprises a sphere 1, a parachute 2, a traction rope 3 and a high-altitude balloon self-destruction device 4 provided by an embodiment of the present invention. The parachute 2 is connected to the lower end of the sphere 1. A spherical top flange 5 is provided on the top of the sphere 1, and the high-altitude balloon self-destruction device 4 is fixed on the spherical top flange 5 through its mounting frame 41. One end of the traction rope 3 is connected to the roller 42 of the high-altitude balloon self-destruction device 4, and the other end is connected to the parachute 2.

[0030] The high-altitude balloon system further includes an exhaust valve 6 and a pod 7. The exhaust valve 6 is arranged on the top flange 5 and communicates with the sphere 1. The pod 7 is hoisted at the lower end of the parachute 2. The parachute 2 is connected to the sphere 1 through a connecting cable 8. The connecting cable 8 is provided with an explosive device 9 for cutting the connecting cable 8 to separate the sphere, the parachute and the pod. It should be noted that the other end of the traction rope 3 can also be connected to the parachute 2 through the pod 7, that is, the traction rope 3 can be directly connected to the pod 7.

[0031] The spherical top flange 5 is installed at the top of the sphere 1 during the production process. It is an aluminum alloy structure with a diameter of about 700mm. Its main function is to bear the stress concentration point of the top of the high-altitude balloon and increase the safety of the sphere. In the preparation stage before the high-altitude balloon flight, the sphere 1 of the high-altitude balloon is straightened and placed at the release site, the spherical top flange 5 at the top of the sphere 1 is found, and the exhaust valve 6 and the high-altitude balloon self-destruction device 4 are installed on the spherical top flange 5. The installation of these two structures is mechanical installation, such as connecting to the spherical top flange 5 by screws, which is easy to install and operate, and has good stability. Then the traction rope 3, the connecting cable 8, the pyrotechnics 9, the parachute 2 and the pod 7 are connected. At this time, the high-altitude balloon system is a long strip system. After the connection is completed, the whole system is in the flight state, and the sphere 1 is filled with buoyancy gas, and the balloon gradually expands. When the inflation value reaches the predetermined inflation amount, the system takes off vertically under the action of buoyancy, and floats with the wind, and finally stays in the air at a predetermined altitude and continues to fly.

[0032] For the high-altitude balloon self-destruction device 4 of this embodiment, since the length of the traction rope 3 is longer than the mother line of the high-altitude balloon, when the high-altitude balloon is in flight, the traction rope 3 is in a relaxed state, and the high-altitude balloon self-destruction device 4 is in a stationary and safe state.

[0033] The flight process of a high-altitude balloon is mainly determined by atmospheric circulation, and there are few maneuvers that can be performed during the flight. When it is determined that the flight mission is over, the telemetry device in the pod 7 can receive the cutting command from the ground station, triggering the pyrotechnics 9 to cut off the connecting cable 8, so as to separate the ball-parachute cabin, and the parachute 2 carrying the pod 7, the traction rope 3 and the roller 42 begins to land rapidly. After separation, the parachute 2 will pull the traction rope 3, and when the slack traction rope 3 is fully tensioned, it will trigger the roller 42 to separate from the mounting frame 41 and move, so that the roller 42 destroys the sphere 1. After the sphere 1 is destroyed and the buoyancy gas is discharged, the parachute 2 will carry the pod 7, the traction rope 3 and the roller 42 to fall to the predetermined area for recovery, and the sphere 1 will also quickly land on the ground near the pod 7, eliminating the flight danger.

[0034] like Figure 2 and Figure 3 As shown, the high-altitude balloon self-destruction device 4 provided in the embodiment of the present invention includes a mounting frame 41 and a roller 42. The mounting frame 41 is provided with a first mounting portion 411, and the first mounting portion 411 is used to be fixedly connected to the ball top flange 5 of the high-altitude balloon. The roller 42 has a first end 42a and a second end 42b on its axis, the first end 42a is connected to the mounting frame 41 through a safety member 44, and the second end 42b is used to connect the traction rope 3. The roller 42 can be separated from the mounting frame 41 under the action of the traction rope 3 and cut the ball membrane of the high-altitude balloon.

[0035] Among them, the traction rope 3 is fixed on the ball membrane generatrix when the sphere 1 is processed, and the two ends are free to relax. In the preparation stage before the outdoor flight, the top end of the traction rope 3 is connected to the second end 42b of the roller 42, the bottom end of the traction rope 3 is fixed to the parachute 2, and the high-altitude balloon self-destruction device 4 is installed on the top flange 5 of the ball. During the take-off and airborne flight stages, that is, before the end of the flight mission, the roller 42 is in a static and safe state, that is, the roller 42 is restricted to the mounting frame 41 by the safety member 44, ensuring that the roller 42 will not separate from the mounting frame 41 by itself during the flight process, thereby destroying the sphere of the high-altitude balloon. Only when the flight mission is terminated will it be activated by the traction rope 3, and the traction rope 3 serves as a trigger switch for the high-altitude balloon self-destruction device 4.

[0036] The roller 42 is a centrally symmetrically arranged tool, usually with multiple blades distributed around its axis. The extension direction of the blades is consistent with the axis direction or is arranged at a certain angle. This ensures that when the traction rope 3 pulls the roller 42 downward, the blade of the roller 42 can interact with the balloon membrane to achieve the purpose of cutting the balloon membrane.

[0037] Specifically, when the ball and parachute are separated, the parachute 2 will quickly tighten the traction rope 3. Since the strength of the safety piece 44 is much smaller than that of the traction rope 3, the instantaneous pulling force will cause the safety piece 44 to break quickly, so that the roller 42 is separated from the mounting frame 41, and then the roller 42 is pulled to move. The roller 42 slides along the top ball membrane under the pulling force and inertia. The continuous pulling force will cause the roller 42 to continue to move along the tangent of the upper surface of the sphere 1, creating a huge crack, so that the sphere 1 quickly releases the internal buoyant gas, and finally the sphere 1 is destroyed and quickly lands on the ground near the pod 7, eliminating the flight risk.

[0038] The high-altitude balloon self-destruction device provided by the embodiment of the present invention is provided with a mounting frame 41 and a roller 42, the mounting frame 41 is installed on the top flange 5 of the high-altitude balloon through the first mounting part 411, the first end of the roller 42 is connected to the mounting frame 41 through the safety member 44, and the second end 42b of the roller 42 is connected to the parachute 2 through the traction rope 3. After the flight mission is completed and the parachute cabin is separated, the parachute 2 will pull the traction rope 3 to trigger the roller 42 to destroy the balloon membrane, so that the sphere 1 safely lands back to the predetermined area, and the landing point is close to the landing point of the parachute 2, thereby avoiding the safety problem of the sphere 1 of the high-altitude balloon flying uncontrollably for a long time at high altitude. The high-altitude balloon self-destruction device 4 is a self-responsive structural design, which is purely mechanically triggered, does not require circuit control, and reduces the complexity of system control. Since the self-destruct device is installed on the ball top flange 5, it can avoid direct contact between the high-altitude balloon and the soft structure of the balloon membrane during the release process, ensuring the safety of the balloon release process. The mounting frame 41 is connected to the ball top flange 5, so that the high-altitude balloon self-destruct device 4 has good stability.

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the mounting frame 41 is a frame structure, and a receiving space 410 is formed inside the frame structure. The hob 42 is received in the receiving space 410, and the first mounting portion 411 is disposed at the bottom of the frame structure. The first mounting portion 411 is provided with a first mounting hole 4111, and the mounting frame 41 is fixedly connected to the ball top flange 5 through a connecting piece 43 penetrating the first mounting hole 4111.

[0040] Specifically, the mounting frame 41 is a cubic frame structure, including a bottom plate, a top plate, and three side plates connected between the bottom plate and the top plate, thereby forming a cubic accommodation space 410. The bottom plate, the top plate, and two opposite side plates surround an opening of the mounting frame 41, and the roller 42 is released from the opening under the action of the traction rope 3.

[0041] Among them, the bottom plate, the top plate and the side plates can be hollow plates or solid plates. This embodiment does not limit this. As long as the three can be surrounded to form a storage space for accommodating the roller 42, the mounting frame 41 can be used as a cover to prevent the roller from accidentally damaging other objects.

[0042] At least two edges of the bottom plate are provided with first mounting portions 411 extending toward the outside of the frame structure, and each first mounting portion 411 is provided with one or more first mounting holes 4111. The spherical top flange 5 is provided with second mounting holes corresponding to the first mounting holes 4111. A connector 43 for connecting the mounting frame 41 and the spherical top flange 5 is provided through the first mounting holes 4111 and the second mounting holes, so as to achieve a fastened connection between the mounting frame 41 and the spherical top flange 5.

[0043] The high-altitude balloon self-destruction device 4 provided in the embodiment of the present invention is installed on the top flange 5 of the high-altitude balloon, which can prevent the high-altitude balloon self-destruction device 4 from directly contacting the balloon membrane during inflation, release and launch, thereby preventing the membrane from being accidentally damaged.

[0044] It should be noted that the shape of the mounting frame 41 is not limited to the cubic structure described in the above embodiment, and it can also be a hemispherical structure, a rectangular parallelepiped structure, a cylindrical structure or a semi-cylindrical structure, etc., and this embodiment does not impose any specific restrictions on this. The structural material of the mounting frame 41 can be a hard steel material or a flexible plastic material, etc., as long as it can play the role of supporting and protecting the hob 42.

[0045] like Figure 3 As shown, in some embodiments of the present invention, the safety member 44 is a safety rope, and the first end 42a of the roller cutter 42 is provided with a cutter holder hole 4215. The safety rope is passed through the cutter holder hole 4215 and connects the roller cutter 42 and the mounting frame 41. It can be understood that after the safety rope is passed through the cutter holder hole 4215, a safety knot is tied to bind the roller cutter 42 and the mounting frame 41 together.

[0046] It should be noted that the present embodiment does not specifically limit the form of the safety member 44. For example, the safety member 44 may also be a pin, an adhesive member, etc., as long as the safety member 44 can ensure a reliable connection between the roller 42 and the mounting frame 41 in the flight state and has a relatively low strength so that it can be quickly broken under the pulling force of the traction rope 3.

[0047] The strength of the safety rope should be smaller than that of the traction rope, which can ensure safety during normal flight and can smoothly trigger the roller 42 after the ball and parachute are separated. Based on the impulse of the moment when the parachute 2 falls and straightens the traction rope 3, the impact force transmitted to the other end of the rope head at this moment is not considered, and the strength of the safety rope needs to be calculated in detail.

[0048] like Figure 4 and Figure 5 As shown, in the embodiment of the present invention, the mounting frame 41 is provided with a mounting post 412 , the mounting post 412 is coaxially arranged with the hob 42 , and the first end 42 a of the hob 42 is sleeved on the mounting post 412 .

[0049] Specifically, Figure 3 , Figure 6 and Figure 7 As shown, the mounting frame 41 includes a knife holder 421 and a blade 422, and a plurality of blades 422 are centrally symmetrically arranged on the knife holder 421 relative to the axis of the hob 42. A positioning hole 4212 adapted to the mounting column 412 is arranged at the axis of the knife holder 421. When the hob 42 is sleeved with the mounting column 412 through the positioning hole 4212, the hob 42 can be maintained in a stable posture, reducing the shaking of the hob 42 relative to the mounting frame 41, thereby preventing the safety member 44 from breaking during shaking.

[0050] Optionally, the length of the mounting column 412 is greater than half the length of the tool holder 421 , so that the mounting column 412 provides a more stable structural support for the hob 42 .

[0051] Furthermore, the mounting column 412 is tilted downward relative to the horizontal plane. It should be noted that the horizontal plane here is based on the high-altitude balloon being in flight, and the ball top flange 5 is installed on the top of the sphere 1, so the horizontal plane is equivalent to the plane where the ball top flange 5 is located. In the case where the mounting frame 41 is a cubic frame structure, the horizontal plane is parallel to the bottom plate of the frame structure. In this embodiment, by setting the mounting column 412 to be tilted downward relative to the horizontal plane, it is beneficial for the roller 42 to slide out under the action of the pulling force and act on the sphere 1 of the high-altitude balloon.

[0052] Optionally, the inclination angle between the mounting column 412 and the horizontal plane is 10°-30°, for example, the mounting column 412 is inclined downwardly by 15°, 20° or 25° relative to the horizontal plane.

[0053] In the embodiment of the present invention, the mounting frame 41 is provided with a bearing column 413. The first end 42a of the hob 42 is provided with a first connection portion 4213 and a second connection portion 4214, and the first connection portion 4213 and the second connection portion 4214 are provided with a tool holder hole 4215. The safety member 44 is passed through the tool holder hole 4215 and connects the first connection portion 4213 and the second connection portion 4214. The bearing column 413 is limited to a space enclosed by the first connection portion 4213, the second connection portion 4214 and the safety member 44.

[0054] It can be understood that the first end 42a of the hob 42 is formed by the first connecting part 4213 and the second connecting part 4214 to form a "U-shaped" or semicircular notch positioning structure, the load-bearing column 413 is located in the positioning structure, and the safety member 44 passes through the tool holder hole 4215 of the first connecting part 4213 and the tool holder hole 4215 of the second connecting part 4214 and connects the first connecting part 4213 and the second connecting part 4214 to close the opening of the positioning structure.

[0055] Furthermore, the mounting column 412 is fixed on the bearing column 413. In this case, the cutter hob 42 is connected to the mounting frame 41 through the mounting column 412 and the bearing column 413. The first end 42a of the cutter hob 42 is sleeved on the mounting column 412, and the positioning structure formed by the first end 42a of the cutter hob 42 cooperates with the bearing column 413, and the bearing column 413 is limited by the safety member 44 within the space enclosed by the first connecting portion 4213, the second connecting portion 4214 and the safety member 44, so that the cutter hob 42 can be placed to rotate, thereby realizing the stable installation and safety of the cutter hob 42.

[0056] The load-bearing column 413 can be arranged horizontally or as Figure 4 It is shown to be arranged in a vertical direction, or arranged in other directions, which is not specifically limited in this embodiment.

[0057] In an embodiment where the safety component 44 is a safety rope, the mounting frame 41 is a frame structure having a accommodating space 410 and having a mounting column 412 and a load-bearing column 413, the assembly process of the mounting frame 41 and the roller 42 is to align the positioning hole 4212 of the roller 42 with the mounting column 412, and push the roller 42 into the mounting frame 41 until the root of the positioning structure of the first end 42a contacts the load-bearing column 413, and then the roller 42 and the load-bearing column 413 are tied and fixed together by the safety rope.

[0058] like Figure 6 As shown, in the embodiment of the present invention, the hob 42 includes a knife holder 421 and a blade 422. The knife holder 421 is provided with a plurality of second mounting portions 4211, and the plurality of second mounting portions 4211 are centrally symmetrically arranged relative to the axis of the hob 42. A blade 422 is detachably connected to each second mounting portion 4211.

[0059] For example, Figure 7 As shown, the tool holder 421 includes three second mounting portions 4211 and a middle portion connecting the three second mounting portions 4211. The middle portion can be a column structure. The three second mounting portions 4211 are arranged at an angle of 120° to each other to form a triangular hob. The positioning hole 4212 in the above embodiment is set at one end of the middle portion, that is, the middle portion is sleeved with the mounting column 412.

[0060] It should be noted that the embodiment of the present invention can also be provided with four, five, six or even more second mounting parts 4211, each second mounting part 4211 is connected to a blade 422, so as to form a four-corner, five-corner, six-corner or even more-corner roller, and multiple azimuth angles can increase the cutting contact area, thereby ensuring that the roller 42 is the first to contact the ball membrane with the blade 422 during the pulling process of the traction rope 3, and even if the traction rope 3 rotates, one side of the blade 422 can always contact the ball membrane.

[0061] The blade 422 can be a general-purpose art blade. In this embodiment, the blade 422 is detachably connected to the second mounting portion 4211, so that the blade 422 can be replaced when it is damaged, thereby realizing the reuse of the hob 42. Of course, the blade holder 421 and the blade 422 of the hob 42 can also be an integrated structure.

[0062] Among them, Figure 6 As shown, the blade holder 421 further includes a fixing member 423, and the blade 422 is detachably connected to the blade holder 421 via the fixing member 423. The fixing member 423 may be a screw or a bolt, etc., and this embodiment does not limit this, as long as the blade 422 and the blade holder 421 can be detachably connected.

[0063] like Figure 6 As shown, in some optional embodiments, the second mounting portion 4211 is provided with a slot 42111 , the blade 422 is inserted into the slot 42111 , and the blade 422 is connected to the second mounting portion 4211 via a fixing member 423 .

[0064] Specifically, the slot 42111 is extended along the axis direction of the hob 42, and the second mounting portion 4211 is provided with a plurality of third mounting holes along the axis direction of the hob 42, and the third mounting holes penetrate the slot 42111. When installing the blade 422, the blade 422 is first inserted into the slot 42111 to achieve pre-positioning of the blade 422 to ensure the consistency of the installation angles and positions of the plurality of blades 422. Then, the fixing member 423 is passed through the third mounting hole, and the blade 422 is clamped to the second mounting portion 4211.

[0065] The second mounting portion 4211 may be a plate-like structure extending from the first end 42 a to the second end 42 b of the hob 42 , and the slot 42111 is disposed at an edge of the plate-like structure away from the axis of the hob 42 .

[0066] It should be noted that the blade 422 may not be pre-positioned through the slot 42111. For example, a sink may be provided on one side of the second mounting portion 4211, and the blade 422 may be pre-positioned through the edge of the sink.

[0067] like Figure 6As shown, the blade 422 is extended along the axis of the hob 42, the edge of the blade 422 is inclined relative to the axis, and the distance between the edge and the axis of the hob 42 gradually increases from the second end 42b of the hob 42 to the first end 42a.

[0068] It can be understood that the blades of the multiple blades 422 of the hob 42 are distributed on a conical surface, the first end 42a of the hob 42 corresponds to the large end of the conical surface, and the second end 42b of the hob 42 corresponds to the small end of the conical surface. For example, if the hob 42 includes three blades 422, the hob 42 forms a "triangular pyramid" configuration, and the three cutting surfaces can ensure that the blades 422 can fully contact the spherical membrane during the sliding cutting process, and the thin head and thick tail structure make the hob 42 have a sweep angle, ensuring that the process of cutting the spherical membrane is smoother and less prone to jamming.

[0069] In the embodiment of the present invention, the width of the second mounting portion 4211 gradually increases from the second end 42b to the first end 42a, the slot 42111 has a uniform depth, and the blade 422 has a uniform width. In this way, after the plurality of blades 422 are correspondingly inserted into the plurality of slots 42111, a cone-shaped hob 42 structure is formed.

[0070] like Figure 6 and Figure 8 As shown, the cutter hoist 42 further includes a lifting eye screw 424 , a threaded end of the lifting eye screw 424 is threadedly connected to the second end 42 b of the cutter hoist 42 , and a lifting eye end of the lifting eye screw 424 is connected to the traction rope 3 .

[0071] Specifically, the eye screw 424 is coaxially arranged with the cutter hoist 42, the threaded end of the eye screw 424 is provided with an external thread, the second end 42b of the cutter hoist 42, i.e., one end of the cutter holder 421, is provided with an internal threaded hole, and the threaded end of the eye screw 424 is threadedly connected with the internal threaded hole. It should be noted that the embodiment of the present invention may also not provide the eye screw 424, but directly form an annular connection portion on the cutter holder 421 for connecting with the traction rope 3.

[0072] The high-altitude balloon self-destruction device 4 provided in the embodiment of the present invention is a purely mechanical structure, without an electric control system, and is triggered by a rope connection. It can achieve synchronization between cutting and destruction and separation of the balloon parachute, and also reduce the control complexity of the system. The system is simple and safer.

[0073] In a specific embodiment of the present invention, the roller 42 is installed on the ball top flange 5 through the mounting frame 41. The mounting frame 41 of the frame structure covers the outer periphery of the roller 42, and the safety rope prevents accidental start-up, which is safe and reliable during the balloon release and flight. The triangular roller structure formed by the combination of the triangular structure tool holder and the art blade ensures that the blade 422 of the roller 42 first contacts the ball membrane during the pulling process of the traction rope 3, and even if the traction rope 3 rotates, one side of the blade 422 can always contact the ball membrane. The triangular roller 42 is thin at the head and thick at the tail, so that the blade 422 is installed at a swept angle, which can ensure that the cutting of the ball membrane is smoother during the sliding process. The triangular roller structure is connected to the parachute 2, which can be recycled and reused. In addition, considering that the collision and friction generated by the roller 42 after landing may damage the blade 422, the detachable blade 422 structure design makes the replacement operation simpler and faster.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-altitude balloon self-destruction device, characterized in that: include: A mounting frame, wherein the mounting frame is provided with a first mounting portion, wherein the first mounting portion is used for fixedly connecting with a top flange of a high-altitude balloon; A roller cutter has a first end and a second end on its axis, the first end is connected to the mounting frame through a safety member, and the second end is used to connect a traction rope. The roller cutter can be separated from the mounting frame and cut the membrane of the high-altitude balloon under the action of the traction rope.

2. The high-altitude balloon self-destruction device according to claim 1, characterized in that: The mounting frame is a frame structure, and a storage space is formed inside the frame structure. The roller is accommodated in the storage space. The first mounting part is arranged at the bottom of the frame structure. The first mounting part is provided with a first mounting hole. The mounting frame is fixedly connected to the ball top flange through a connecting piece passing through the first mounting hole.

3. The high-altitude balloon self-destruction device according to claim 1 or 2, characterized in that: The safety component is a safety rope, the first end is provided with a tool holder hole, the safety rope is passed through the tool holder hole and connects the hob and the mounting frame.

4. The high-altitude balloon self-destruction device according to claim 1 or 2, characterized in that: The mounting frame is provided with a mounting column, the mounting column is arranged to be tilted downward relative to a horizontal plane, the mounting column is arranged coaxially with the hob, and the first end is sleeved on the mounting column.

5. The high-altitude balloon self-destruction device according to claim 4, characterized in that: The mounting frame is also provided with a load-bearing column, and the mounting column is fixed on the load-bearing column; The first end is provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part are provided with a tool holder hole, the safety piece is passed through the tool holder hole and connects the first connecting part and the second connecting part, and the load-bearing column is limited to a space enclosed by the first connecting part, the second connecting part and the safety piece.

6. The high-altitude balloon self-destruction device according to claim 1 or 2, characterized in that: The hob comprises: The tool holder is provided with a plurality of second mounting parts, and the plurality of second mounting parts are centrally symmetrically arranged relative to the axis; A blade is detachably connected to each mounting portion.

7. The high-altitude balloon self-destruction device according to claim 6, characterized in that: The tool holder also includes: A fixing member, wherein the mounting position is provided with a slot, the blade is inserted into the slot, and the blade is detachably connected to the first mounting portion through the fixing member.

8. The high-altitude balloon self-destruction device according to claim 6, characterized in that: The blade is extended along the direction of the axis, the blade edge is inclined relative to the axis, and the distance between the blade edge and the axis gradually increases from the second end to the first end.

9. The high-altitude balloon self-destruction device according to claim 6, characterized in that: The hob also includes: A lifting eye screw, wherein the threaded end of the lifting eye screw is threadably connected to the second end, and the lifting eye end of the lifting eye screw is connected to the traction rope.

10. A high altitude balloon system, characterized in that: include: A sphere, a parachute, a traction rope and a high-altitude balloon self-destruction device as described in any one of claims 1 to 9; the parachute is connected to the lower end of the sphere, the top of the sphere is provided with a spherical top flange, the high-altitude balloon self-destruction device is fixed to the spherical top flange through the mounting frame, one end of the traction rope is connected to the roller, and the other end is connected to the parachute.

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