High-safety unmanned aerial vehicle automatic throwing device

Abstract

The high-safety unmanned aerial vehicle automatic throwing device comprises a frame body, the frame body is provided with a missile cabin used for fixing a missile body and a supporting plate, and one side of the supporting plate is rotationally connected with the frame body; when the supporting plate rotates to an open state, the missile body is clamped between the missile cabin and the supporting plate; when the supporting plate rotates to a closed state, the projectile body can be completely separated from the projectile cabin; the frame body is provided with a sliding block used for controlling the supporting plate to rotate and a driving device used for controlling the sliding block to move. The high-safety unmanned aerial vehicle automatic throwing device comprises the sliding block, the sliding block slides to drive the supporting plate to rotate, the supporting plate rotates to fix or release the projectile body, safety unlocking and throwing of the projectile body are achieved only through one transmission assembly, and the whole process is automatically completed.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle throwing, and in particular to a high-safety automatic throwing device for unmanned aerial vehicles. Background Art

[0002] Currently, drones have become a relatively common flying platform. With the continuous maturity of drone technology, a variety of drone-mounted anti-riot bomb throwing devices have also appeared. However, most of the anti-riot bomb throwing devices have a simple structure and a single throwing action. Most of the throwing devices need to be released on the ground before loading. During the entire flight bombing operation, the anti-riot bomb is in a completely released state. This kind of throwing device has a great safety risk during use. Summary of the invention

[0003] The embodiment of the present invention provides a high-security automatic throwing device for unmanned aerial vehicles to solve the problem of great safety risks caused by ground release of the safety device in the prior art.

[0004] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0005] A high-security automatic throwing device for unmanned aerial vehicles comprises a frame, on which a bomb bay and a support plate for fixing a bomb body are arranged, and one side of the support plate is rotatably connected to the frame;

[0006] When the support plate is rotated to an open state, the projectile body is clamped between the bomb bay and the support plate;

[0007] When the support plate is rotated to a closed state, the missile body can be completely separated from the missile bay;

[0008] The frame is provided with a slider for controlling the rotation of the supporting plate and a driving device for controlling the movement of the slider.

[0009] Furthermore, the driving device includes a servo motor, a driving gear and a rack. The servo motor is fixed on the frame. The rotating shaft of the servo motor is connected to the driving gear. The driving gear is meshed and connected to the rack. The rack is arranged on the slider.

[0010] Furthermore, an angle limiting structure for limiting the rotation angle of the support plate is provided at the rotation point of the frame and the support plate.

[0011] Furthermore, the contact point between the sliding block and the supporting plate is provided with a chamfered edge, an arc edge or a rotating structure for reducing the friction between the two.

[0012] Furthermore, a locking pin for hanging a pull ring of the elastic body is provided on one side of the elastic body on the sliding block.

[0013] Furthermore, the locking pin is provided with a lever, the support plate is provided with a cavity for the lever to move, the cavity is provided with a lever spring arranged along the moving direction of the support plate, and the lever is connected to the lever spring.

[0014] Furthermore, an elastic device for providing flexible tightening for the projectile is provided in the bomb bay.

[0015] Furthermore, the elastic device includes a tensioning spring and a spring fixing device, the spring fixing device is fixed in the bomb compartment, and an annular groove for the spring to pass through is provided in the spring fixing device.

[0016] Furthermore, the frame is provided with an inductive sensor, which has a light sensing function and is used to detect the light blocking condition of the projectile.

[0017] Furthermore, the bomb bay is rotatably connected to a frame, and the frame is provided with a clamping device for preventing the bomb bay from rotating.

[0018] The embodiments of the present invention have the following advantages:

[0019] A high-security automatic throwing device for unmanned aerial vehicles provided by the present invention includes a slider, the sliding of which drives a support plate to rotate, and the rotation of the support plate realizes the fixation or release of the projectile. This technology only uses a set of transmission components to achieve the safety unlocking and throwing of the projectile, and the entire process is completed automatically.

[0020] The high-security automatic throwing device for unmanned aerial vehicles provided by the present invention is provided with an adsorption component, which is convenient for the installation of the projectile body and is more stable and reliable during flight in the air. In addition, the throwing device as a whole also has the advantages of simple structure, compact arrangement of components, light weight, and high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Figure 1 A product structure diagram of a high-security automatic throwing device for unmanned aerial vehicles provided by an embodiment of the present invention;

[0024] Figure 2 An internal structure diagram of a high-security automatic throwing device for unmanned aerial vehicles provided by an embodiment of the present invention;

[0025] Figure 3 for Figure 1 Middle AA section view;

[0026] Figure 4 A partial enlarged view of a locking pin area in a high-security automatic throwing device for a drone provided in an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Frame; 2. Projectile body; 3. Missile compartment; 4. Support plate; 5. Angle limit structure; 6. Clamping spring; 7. Upper fixing plate; 8. Lower fixing plate; 9. Inductive sensor; 10. Clamping device; 11. Slider; 12. Servo motor; 13. Driving gear; 14. Rack; 15. Lock pin; 16. Handle; 17. Handle spring; 18. Projectile body pull ring; 19. Fixing table; 20. Steel ball; 21. Clamping spring; 22. Spherical groove. DETAILED DESCRIPTION

[0029] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. 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.

[0030] like Figure 1 As shown, a high-security automatic throwing device for unmanned aerial vehicles is provided. This throwing mechanism is suitable for explosion-proof bombs in the form of direct-pull safety or similar types of throwing objects. It can be used for remote and intelligent release of explosion-proof bombs or similar types of throwing objects on unmanned aerial vehicles. It includes a frame 1, and the frame 1 is used to fix the various components in the present technology, and the frame 1 is also provided with a connecting structure fixed to the aircraft.

[0031] The frame 1 is provided with a bomb bay 3 and a support plate 4 for fixing the projectile 2. In this embodiment, the anti-riot bomb bay 3 and the support plate 4 are distributed up and down. The anti-riot bomb bay 3 is a semi-open warehouse structure, which can limit the multi-directional freedom of the projectile 2. The opening is downward and toward the support plate 4. The support plate 4 blocks the last degree of freedom of the projectile 2, thereby fixing the projectile 2. One side of the support plate 4 is rotated to connect the frame 1. When the support plate 4 rotates to the open state, the support plate 4 is in a horizontal state in this embodiment, and the projectile 2 is clamped between the bomb bay 3 and the support plate 4; when the support plate 4 rotates to the closed state, the support plate 4 is in a vertical state in this embodiment, and the projectile 2 can be completely separated from the bomb bay 3. The bomb bay 3 is made of explosion-proof material, and its opening faces the side away from the aircraft, so that even if the projectile 2 explodes, the bomb bay 3 can protect the aircraft from being affected by the explosion.

[0032] like Figure 2 As shown, in order to more accurately control the rotation point of the pallet 4, an angle limiting structure 5 for limiting the rotation angle of the pallet 4 is provided at the rotation point of the frame 1 and the pallet 4. The angle limiting structure 5 is a limiting block located on one side of the pallet 4. Structures such as strip limiting, surface limiting, point limiting, etc. that can limit the continued expansion of the angle of the pallet 4 all fall within the meaning of the present technical features. In this embodiment, when the pallet 4 is in a horizontal state, the limiting structures such as the upper baffle bars and baffle blocks of the pallet 4 are located; when the pallet 4 is in a vertical state, the limiting structures such as the baffle bars and baffle blocks are located on the other side of the pallet 4.

[0033] In order to make the missile body 2 more firmly fixed, an elastic body can be provided on the bomb bay 3 or the support plate 4 to provide elastic support for the missile body 2 to prevent the missile body 2 from falling off or exploding due to bumps during flight. Since the support plate 4 needs to rotate and the area covered by the missile body 2 is limited, the best way is to provide an elastic device in the bomb bay 3 to provide flexible support for the missile body 2. The elastic device can cover one side of the missile body 2, so that the force on the missile body 2 is more uniform.

[0034] The elastic device includes a tension spring 6 and a spring fixing device, the spring fixing device is fixed in the bomb bay 3, and an annular groove for the spring to pass through is provided in the spring fixing device. Specifically, the spring fixing device includes an upper fixing plate 7 and a lower fixing plate 8, the upper fixing plate 7 is fixed at the inner center of the bomb bay 3 by a first bolt, and then the lower fixing plate 8 is installed to one end of the spring, the installation direction of the lower fixing plate 8 is toward the outside of the spring, and the installation direction of the lower fixing plate 8 is provided with an annular groove for the spring to be embedded, and finally the installation direction of the lower fixing plate 8 is buckled with the upper fixing plate 7, and fixed by a second screw, so as to fix the tension spring 6 in the bomb bay 3.

[0035] The frame 1 is provided with an inductive sensor 9, which has a light sensing function and is used to detect the light blocking condition of the projectile 2. Specifically, a positioning hole is provided on the frame 1 between the bomb bay 3 and the support plate 4, and the inductive sensor 9 passes through the positioning hole and is locked by a self-provided nut to achieve its fixation on the frame 1. This technology utilizes the light sensing function of the sensor to detect the light blocking condition of the projectile 2 between the bomb bay 3 and the support plate 4, and then determines whether there is a projectile 2 and whether the casting is successful.

[0036] The bomb bay 3 is rotatably connected to the frame 1, so that the bomb body 2 can be installed into the bomb bay 3. After the bomb bay 3 is rotated into place, the support plate 4 is used to clamp the main bomb body 2. However, in order to prevent the bomb bay 3 from rotating due to bumps during flight, a clamping device 10 is provided on the frame 1 to prevent the bomb bay 3 from rotating. Figure 3 As shown, the clamping device in this embodiment includes a fixing platform 19 arranged on the bomb bay 3 and an elastic clamping device arranged on the frame. A spherical groove 22 is symmetrically arranged on one or both sides of the fixing platform 19. In this embodiment, the spherical grooves 22 are symmetrically arranged on both sides of the fixing platform 19. The clamping side of the elastic clamping device is provided with a steel ball 20, a cavity for the steel ball 20 to move, and a clamping spring 22 arranged in the cavity. When the bomb bay 3 rotates to the right position, the support plate 4 clamps the main bomb body 2, and the steel ball 20 is pushed out by the clamping spring and embedded in the spherical groove 22 to clamp and fix the bomb bay 3; when the bomb bay 3 starts to rotate away from the frame, the steel ball 20 is pushed back into the cavity, and the steel ball 20 starts to squeeze the clamping spring 21.

[0037] The frame 1 is provided with a slider 11 for controlling the rotation of the pallet 4 and a driving device for controlling the movement of the slider 11. The slider 11 is located at the bottom of the pallet 4. The slider 11 lifts up the pallet 4 during the translation process, and the pallet 4 rotates. When the slider 11 slides to the bottom of the pallet 4 and is parallel to the pallet 4, the pallet 4 rotates to a horizontal position, so that the pallet 4 is fixed to the bottom of the elastic body 2. The contact part of the slider 11 with the pallet 4 is provided with a chamfered edge, an arc edge or a rotating structure for reducing the friction between the two, wherein the rotating structure is a rotatable structure arranged on the edge, such as a roller, a ball bearing, etc. arranged on the edge of the slider 11 at the connection with the pallet 4.

[0038] The movement of the slider 11 is controlled by a driving device, and the driving device is fixed on the frame 1. Specifically, the driving device includes a servo motor 12, a driving gear 13 and a rack 14. The servo motor 12 is fixed on the frame 1. The rotating shaft of the servo motor 12 is connected to the driving gear 13. The driving gear 13 is meshed and connected to the rack 14, and the rack 14 is arranged on the slider 11. The rotation center of the driving gear 13 is provided with an outward annular protrusion, and the outer side of the annular protrusion is sleeved with a bearing. The bearing is fixed on the frame 1 and is used to balance the force of the driving gear 13, so that the rotation of the driving gear 13 is more stable, and at the same time, the force on the rotating shaft of the servo motor 12 is relieved, so that the operation of the servo motor 12 is more stable.

[0039] like Figure 4 As shown, a lock pin 15 for locking the elastic body pull ring 18 is provided on one side of the slide block 11 located on the elastic body 2. A lever 16 is provided on the lock pin 15, and a cavity for the lever 16 to move is provided on the support plate 4. A lever spring 17 is provided in the cavity along the moving direction of the support plate 4. One end of the lever 16 goes deep into the cavity and is connected to the lever spring 17. The lever spring 17 presses against the lever 16 and is located on one side of the elastic body pull ring 18. When the slide block 11 drives the lock pin 15 to translate and pull the pull ring outward, the lever spring 17 can delay the timing of pulling the pull ring. After the slide block 11 moves a certain distance, when the force pulling the pull ring is less than the elastic force of the lever spring 17, the lock pin 15 will accelerate the pulling of the pull ring with the support of the restoring force of the lever spring 17, which increases the time for the subsequent steps, thereby increasing safety.

[0040] The specific working steps of this technology are divided into four stages, namely: projectile installation, projectile safety release, projectile throwing, and transmission mechanism reset.

[0041] Installation of projectile: The projectile 2 is placed upside down in the bomb bay 3, and the bomb bay 3 is rotated so that the bomb bay 3 is adsorbed and locked on the frame 1, and the lower end surface of the projectile 2 is clamped on the column support plate 4 to ensure that the projectile 2 and the support plate 4 are tightly attached without gap. Then the safety pull ring of the projectile 2 is set on the locking pin 15 of the slider 11. The locking pin 15 is provided with an arc step, and the safety pull ring can be embedded in the arc step to avoid the problem of falling off due to turbulence during flight. Under this working condition, the projectile 2 and the safety pull ring are installed and fixed.

[0042] Safety release and passive casting of the projectile: the servo motor 12 rotates to drive the slider 11 to move backward. When the slider 11 starts to move backward, the support plate 4 is in a horizontal static state due to the support of the slider 11. At the same time, the projectile 2 is also in a static state after being tightly attached to the support plate 4. Then, during the movement of the slider 11, as the exposed part of the slider 11 becomes smaller and smaller, the support plate 4 starts to rotate downward until the slider 11 is completely retracted into the frame 1. The support plate 4 loses the support of the slider 11 and rotates to a vertically downward closed state. At this time, the projectile 2 is separated from the bomb bay 3 due to the lack of support of the support plate 4. The projectile 2 falls freely and is thrown downward, completing the casting of the projectile 2. At the same time, the locking pin 15 pulls the projectile pull ring 18 as the slider 11 moves, so that the projectile pull ring 18 is separated from the projectile 2. After the projectile pull ring 18 is completely pulled out, the outer end of the projectile pull ring 18 will swing down. No object is set under the slider 11, or a groove is opened on the frame 1 to reserve a groove for the pull ring to swing down, so as to avoid the projectile pull ring 18 not swinging down completely and causing it to get stuck or contact the falling projectile 2, thereby affecting the accurate delivery of the projectile 2.

[0043] Transmission mechanism reset: After the projectile 2 is thrown, the servo motor 12 starts to rotate in the reverse direction, and the slider 11 starts to move in the reverse direction. As the slider 11 is exposed more and more from the frame 1, the slider 11 rotates against the support plate 4 until the support plate 4 and the slider 11 are completely in the initial position, and the transmission mechanism reset is completed.

[0044] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A high-security automatic throwing device for drones, characterized by: It comprises a frame, on which a bomb bay and a support plate for fixing the bomb body are arranged, and one side of the support plate is rotatably connected to the frame; When the support plate is rotated to an open state, the projectile body is clamped between the bomb bay and the support plate; When the support plate is rotated to a closed state, the missile body can be completely separated from the missile bay; The frame is provided with a slider for controlling the rotation of the supporting plate and a driving device for controlling the movement of the slider.

2. A high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: The driving device comprises a servo motor, a driving gear and a rack. The servo motor is fixed on a frame. The rotating shaft of the servo motor is connected to the driving gear. The driving gear is meshed and connected to the rack. The rack is arranged on a slider.

3. The high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: An angle limiting structure for limiting the rotation angle of the support plate is provided at the rotation point of the frame and the support plate.

4. The high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: The contact point between the sliding block and the supporting plate is provided with a chamfered edge, an arc edge or a rotating structure for reducing the friction between the two.

5. The high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: A locking pin for hanging a pull ring of the elastic body is provided on one side of the elastic body on the sliding block.

6. A high-security automatic throwing device for unmanned aerial vehicles according to claim 5, characterized in that: The lock pin is provided with a lever, the support plate is provided with a cavity for the lever to move, the cavity is provided with a lever spring arranged along the moving direction of the support plate, and the lever is connected to the lever spring.

7. The high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: An elastic device for providing flexible tightening for the projectile is arranged in the bomb compartment.

8. The high-security automatic throwing device for unmanned aerial vehicles according to claim 7, characterized in that: The elastic device comprises a tensioning spring and a spring fixing device, the spring fixing device is fixed in the bomb compartment, and an annular groove for the spring to pass through is arranged in the spring fixing device.

9. The high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: The frame is provided with an inductive sensor, which has a light sensing function and is used to detect the light blocking condition of the projectile.

10. The high-security automatic throwing device for unmanned aerial vehicles according to claim 1, characterized in that: The bomb bay is rotatably connected to a frame body, and a clamping device for preventing the bomb bay from rotating is provided on the frame body.

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