UAV airborne bombing system

Abstract

The present invention provides a drone airborne bombing system, comprising: a control box, a bombing device and a limiting device; the bombing device is installed below the control box, a symmetrical bombing tube is installed in the bombing device, ammunition is installed in the bombing tube, the limiting device is installed at the bottom of the bombing tube through a hinge, the limiting device is used to limit the ammunition inside the bombing tube, and the control box is used to control the limiting device to release the ammunition. The present invention limits the limit top cover by a limiting pin, and when no release command is issued, the tear gas bomb is completely constrained in the bombing tube to prevent the occurrence of mis-release; accurate release is achieved, helping police officers to perform tasks over long distances and avoiding unnecessary losses.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to an airborne bombing system for unmanned aerial vehicles. Background Art

[0002] Chinese utility model patent CN201159623Y discloses a non-toxic, pollution-free and environmentally friendly tear gas bomb, which can be triggered by pulling out the fuse when in use. It needs to be thrown when in use, and cannot achieve precise strikes, and the strike range is extremely limited;

[0003] Chinese invention patent CN105667794A discloses an unmanned aerial vehicle bomb delivery system, which uses a spring and a rocker arm to clamp the tear gas bomb to limit the position after installation. During the flight of the unmanned aerial vehicle, when the force generated by the compression spring in the launch tube breaks through the friction force of the clamping device on the tear gas bomb, misfire is likely to occur. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose an unmanned aerial vehicle airborne bomb delivery system, which can mount different numbers of tear gas bombs on the unmanned aerial vehicle, and limit the limit cover by the limit pin, so that the tear gas bombs are completely constrained in the bomb delivery tube when no delivery command is issued to prevent the occurrence of accidental delivery; the tear gas bomb launch angle is adjusted by the pitch gimbal, and the pitch gimbal is used to make fine adjustments after the unmanned aerial vehicle enters the delivery position, and then the tear gas bombs are ejected or directly fired to achieve precise delivery, thereby helping police officers to perform tasks over long distances and avoid unnecessary losses.

[0005] To achieve the above object, the present invention adopts the following specific technical solutions:

[0006] The present invention provides an airborne bombing system for a drone, comprising: a control box, a bombing device and a limiting device;

[0007] A bombing device is installed below the control box, in which a symmetrical bombing tube is installed, and ammunition is installed in the bombing tube. A limit device is installed at the bottom of the bombing tube through a hinge. The limit device is used to limit the ammunition inside the bombing tube, and the control box is used to control the limit device to release the ammunition.

[0008] Preferably, the bomb throwing device comprises: a bomb throwing tube base, a spring and ammunition;

[0009] The base of the grenade tube is fixed at one end of the grenade tube and is an integrated structure with the grenade tube; one end of the spring is fixed to the base of the grenade tube, and when ammunition is loaded into the grenade tube, the spring is compressed to store elastic potential energy, and the ammunition is restricted inside the grenade tube through the limiting device.

[0010] Preferably, the base of the grenade launcher is provided with a central hole, and the side of the base of the grenade launcher is provided with a semicircular protrusion, and the protrusions are respectively provided with mounting holes;

[0011] A first limiting block and a second limiting block are arranged on the base of the bomb tube. The first limiting block and the second limiting block are respectively provided with a central hole. Evenly distributed fan-shaped holes are arranged around the central hole of the first limiting block.

[0012] Preferably, the bomb throwing device further comprises: a winding shaft, on which a small hole is provided;

[0013] The winding shaft passes through the center holes of the first limiting block and the second limiting block respectively, and the lead of the ammunition passes through the center hole and the small hole of the bomb tube base in sequence and is wound around the winding shaft.

[0014] Preferably, a fixed platform is provided at one end of the winding shaft, and a limited position protrusion is provided on the fixed platform;

[0015] One side of the limiting protrusion is an inclined surface, and the other side is a plumb surface; the limiting protrusion is inserted into the fan-shaped hole to limit the winding shaft from rotating in one direction.

[0016] Preferably, the limiting device comprises: a limiting top cover and a steering gear;

[0017] The limit top cover is hinged at the bottom end of the bomb tube; a connecting piece is arranged at the edge of the limit top cover;

[0018] The servo is fixed on the side of the bottom end of the bomb tube, and a servo arm is installed on the servo, and the servo is used to control the rotation of the servo arm; a connecting rod is installed at the end of the servo arm, and a limit pin is installed at the end of the connecting rod; the limit pin is used to limit the movement of the connecting piece;

[0019] The servo arm, the connecting rod and the limit pin are movably connected. When the servo arm rotates, the connecting rod is driven to move, and the connecting rod drives the limit pin to move.

[0020] Preferably, the limiting device comprises: a guide sleeve, a top end of which is provided with two protruding fixing rods, the fixing rods are respectively fixedly connected to the connecting piece and the steering gear, and the guide sleeve is used to control the movement direction of the limiting pin.

[0021] Preferably, the connecting member is a U-shaped structure, and a roller is installed inside the connecting member through a rotating shaft, and the roller is used to reduce the friction between the limit latch and the connecting member.

[0022] Preferably, the pitch platform and the control box are provided with countersunk holes to reduce the deadweight of the drone's onboard bombing system.

[0023] Preferably, it also includes a pitch platform, which is installed below the drone through a quick-release assembly, and a control box is installed below the pitch platform, and the control box and the pitch platform are rotatably connected;

[0024] Compared with the existing technology, the present invention limits the top cover by a latch, so that the tear gas can be completely confined in the canister when no delivery command is issued, thereby preventing the occurrence of accidental delivery; the tear gas cannon firing angle is adjusted by the pitch gimbal, and fine-tuning is performed by the gimbal after the drone enters the delivery position, and then the cannon is ejected or shot directly to achieve precise delivery, thereby helping police officers to perform tasks at a long distance and avoiding unnecessary losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of a UAV loading system provided according to an embodiment of the present invention.

[0026] Figure 2 Schematic diagram of the structure of a drone airborne bomb dropping system provided according to an embodiment of the present invention.

[0027] Figure 3 The figure is a schematic diagram of the internal structure of a single bombing device of a drone airborne bombing system provided according to an embodiment of the present invention.

[0028] Figure 4 The present invention is a schematic structural diagram of a bomb barrel base and a winding shaft of a drone airborne bomb dropping system provided in accordance with an embodiment of the present invention.

[0029] Figure 5 Schematic diagram of the structure of a limiting device of a drone airborne bombing system provided according to an embodiment of the present invention.

[0030] Figure 6 Schematic diagram of a control box of a drone airborne bombing system provided according to an embodiment of the present invention.

[0031] The accompanying drawings include: a tilt platform 1, a bomb-releasing device 2, a winding shaft 21, a limit block 211, a bomb-releasing tube base 22, a first limit block 221, a second limit block 222, a fan-shaped hole 223, a spring 23, a tear gas bomb 24, a bomb-releasing tube 25, a camera 3, a control box 4, an array plate 4-1, a limit device 5, a limit pin 51, a limit top cover 52, a connecting piece 521, a roller 522, a connecting rod 53, a servo 54, a servo arm 55, a guide sleeve 56, a quick-release assembly 6 and a slot 7. DETAILED DESCRIPTION

[0032] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the same modules are represented by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, the detailed description thereof will not be repeated.

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0034] Figure 1 A drone loading system provided according to an embodiment of the present invention is shown.

[0035] Figure 2 The invention shows an airborne bomb dropping system for a drone according to an embodiment of the invention.

[0036] like Figure 1 and Figure 2 As shown, the drone airborne bombing system provided by the embodiment of the present invention includes: a pitch platform 1, a bombing device 2, a camera 3, a control box 4, a limit device 5 and a quick-release assembly 6.

[0037] The pitch platform 1 is installed under the UAV through the quick release assembly 6, and the pitch platform 1, the quick release assembly 6 and the UAV are fixedly connected. The control box 4 is installed under the pitch platform 1, and the control box 4 and the pitch platform 1 are connected in rotation. The pitch platform 1 is driven by the servo through the fixed axis and the notch 7 to adjust the pitch freedom of the control box 4. The extreme position of the pitch angle change of the control box 4 cannot interfere with other devices in the UAV loading system. For the convenience of wiring, the camera 3 is installed at one end of the control box 4; the ground information obtained by the camera is sent back to the operator in real time for aiming. The direction of the camera 3 is the same as the launch direction, which makes the ground information obtained by the camera 3 exactly the angle of the launch system. In order to make the overall system wiring clear and beautiful and reduce the occurrence of interference, all controllers and cables are installed inside the control box 4, and the cables are used to power the actuator and transmit control signals.

[0038] The fixed axis and the slot 7 allow the control box 4 to rotate around the fixed axis to adjust the pitch angle, and the slot 7 is used to limit the pitch angle so that the UAV carrier will not become unstable due to excessive adjustment.

[0039] A bomb throwing device 2 is installed below the control box 4 .

[0040] Figure 3 The internal structure of a single bombing device of a drone airborne bombing system provided according to an embodiment of the present invention is shown.

[0041] Figure 4 Shown is a bomb barrel base and a winding shaft of a drone airborne bombing system provided according to an embodiment of the present invention.

[0042] like Figure 3 and Figure 4As shown, the grenade throwing device 2 includes: a winding shaft 21, a limiting protrusion 211, a grenade throwing tube base 22, a first limiting block 221, a second limiting block 222, a fan-shaped hole 223, a spring 23, a tear gas bomb 24 and a grenade throwing tube 25.

[0043] The side of the bomb tube base 22 is provided with uniform semicircular protrusions, and mounting holes are respectively provided on the protrusions; the bomb tube base 22 is provided with a first limit block 221 and a second limit block 222, the centers of the first limit block 221 and the second limit block 222 are on a straight line, the first limit block 221 is provided with a center hole, and a plurality of fan-shaped holes 223 are provided around the center hole, and the fan-shaped holes 223 are evenly distributed around the center hole. The fan-shaped holes in the drone airborne bombing system provided by the present invention are 4; the second limit block 222 is provided with a center hole, and the heights of the center holes of the first limit block 221 and the second limit block 222 are the same.

[0044] A fixed platform is provided at one end of the winding shaft 21, and a plurality of limiting protrusions 211 are provided on the fixed platform. One side of the limiting protrusion 211 is an inclined surface, and the other side is a plumb surface. There are four limiting protrusions 211 in the drone airborne bombing system provided by the present invention. The winding shaft 21 passes through the center holes of the first limiting block 221 and the second limiting block 222 respectively, and the limiting protrusion 211 is inserted into the fan-shaped hole 223. The winding shaft 21 is unidirectionally rotatable and can be easily rotated in the direction of the inclined surface. When rotating in the opposite direction, the fan-shaped hole 223 of the bomb tube base 22 will limit the winding shaft 21 to restrict the reverse rotation of the winding shaft 21.

[0045] The grenade barrel 25 is equipped with a spring 23 and a tear gas bomb 24. The spring 23 is first loaded into the grenade barrel 25, and one end of the spring 23 is fixed on the grenade barrel base 22. The grenade barrel 25 guides the spring 23 to prevent the spring from being deformed radially when compressed. After the tear gas bomb 24 is loaded into the grenade barrel 25, the spring 23 is compressed to store elastic potential energy; the lead wire of the tear gas bomb 24 passes through the central hole of the grenade barrel base 22 and is wound on the winding shaft 21; the winding shaft 21 is provided with a small hole, and the lead wire of the tear gas bomb 24 passes through the small hole and is wound on the winding shaft 21 to prevent the lead wire from sliding with the winding shaft 21.

[0046] The tear gas bomb 24 is limited to be ejected by the limiting device 5. The limiting device 5 is located at the bottom of the bomb tube 25.

[0047] Figure 5 A limiting device of a drone airborne bombing system provided according to an embodiment of the present invention is shown.

[0048] like Figure 5 As shown, the limiting device 5 includes: a limiting pin 51, a limiting top cover 52, a connecting piece 521, a roller 522, a connecting rod 53, a steering gear 54, a steering gear arm 55 and a guide sleeve 56.

[0049] The limit cover 52 is located at the bottom of the grenade tube 25, and the limit cover 52 is installed on the grenade tube 25 through a hinge mechanism; the limit cover 52 and the grenade tube 25 are rotatably connected, and a connector 521 is provided at the edge of the limit cover 52, and the position of the connector 521 corresponds to the position of the hinge. When a roller 522 is installed on the connector 521, the connector 521 is a U-shaped structure, and the roller 522 is installed inside the connector 521 through a rotating shaft. The roller 522 is used to convert sliding friction into rolling friction, thereby reducing the friction between the limit pin 51 and the connector 521 during movement.

[0050] The top of the guide sleeve 56 is provided with two extended fixing rods, and the fixing rods at the top of the guide sleeve 56 are respectively fixedly connected with the connecting member 521 and the steering gear 54. The guide sleeve 56 is used to control the movement track of the limit latch 52.

[0051] The steering gear 54 is fixed to the side of the bottom end of the bomb tube 25, and a steering gear arm 55 is installed on the steering gear 54. The steering gear 54 can control the steering gear arm 55 to rotate; a connecting rod 53 is installed at the end of the steering gear arm 55, and a limit pin 51 is installed at the end of the connecting rod 53;

[0052] The servo arm 55 , the connecting rod 53 and the limit pin 51 constitute a crank slider mechanism, and the servo arm 55 , the connecting rod 53 and the limit pin 51 are movably connected. When the servo arm 55 rotates, the connecting rod 53 is driven to move, and the connecting rod 53 then drives the limit pin 51 to move in the guide sleeve 56 .

[0053] Figure 5 The left side shows the state of the limit device 5 when it is in the limit state. When the limit device 5 is in the limit state, the servo 55 drives the crank slider mechanism to move, so that the limit pin 51 moves into the limit position in the guide sleeve 56, and the limit top cover 52 is closed, so that the tear gas bomb 24 is confined in the bomb tube 25.

[0054] Figure 5 The right side shows the state of the limit pin 51 when released. When the limit device 5 is in the released state, the servo 55 drives the crank slider mechanism to move, so that the limit pin 51 moves out of the limit position in the guide sleeve 56, the limit top cover 52 opens, and the ejection spring pushes the tear gas bomb 24 to be released. During the release process, the pull ring is fixed on the winding shaft, and the lead wire is pulled out at the same time.

[0055] In the movement range between the limiting position and the releasing position of the limiting latch 51, the crank slider mechanism cannot have a self-locking position.

[0056] Figure 6 A control box of a drone airborne bombing system provided according to an embodiment of the present invention is shown.

[0057] like Figure 6 As shown, the control box 4 includes an array board 4-1. The array board 4-1 is used to install the bombing device 2, so that the drone can mount different numbers of delivery devices according to the working conditions. When the number of delivery devices required is small, the flight operation time of the drone can be extended. The use of the array board can allow the drone to take into account other performances when performing tasks, such as mounting other external devices, extending the flight time, etc.

[0058] In order to reduce the dead weight of the drone airborne bombing system provided by the present invention and increase the flight time, the present invention has made necessary weight reduction, and has made a countersunk weight reduction design for the pitch pan and control box, and carbon fiber plates are used for components with low strength requirements, such as: the array plate 4-1 and the cover of the control box 4.

[0059] The tear gas bombs of the drone airborne bomb delivery system provided by the present invention are in a 2*4 array. In actual situations, different numbers of tear gas bombs can be selected according to different load capacities of different drones and different mission requirements.

[0060] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0061] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A drone airborne bombing system, characterized in that: include: Control box, bombing device and limit device; The bombing device is installed below the control box, a symmetrical bombing tube is installed in the bombing device, ammunition is installed in the bombing tube, the limiting device is installed at the bottom of the bombing tube through a hinge, the limiting device is used to limit the ammunition inside the bombing tube, and the control box is used to control the limiting device to release the ammunition; The projectile device comprises: a projectile tube base, a spring and ammunition; the projectile tube base is fixed to one end of the projectile tube and is an integrated structure with the projectile tube; one end of the spring is fixed to the projectile tube base, and the ammunition is loaded into the projectile tube, the spring is compressed, and elastic potential energy is stored, and the ammunition is limited inside the projectile tube through the limiting device; the projectile tube base is provided with a center hole, and the side of the projectile tube base is provided with a semicircular protrusion, and the protrusion is respectively provided with mounting holes; the projectile tube base is provided with a first limiting block and a second limiting block, and the first limiting block and the second limiting block are respectively provided with a center hole, and fan-shaped holes evenly distributed are provided around the center hole of the first limiting block; The bomb throwing device further comprises: a winding shaft, on which a small hole is arranged; the winding shaft passes through the center holes of the first limiting block and the second limiting block respectively, and the lead of the ammunition passes through the center hole of the bomb tube base and the small hole in sequence and is wound around the winding shaft; a fixed platform is arranged at one end of the winding shaft, and four limiting protrusions are arranged on the fixed platform; one side of the limiting protrusion is an inclined surface, and the other side is a plumb surface; the limiting protrusion is inserted into the fan-shaped hole to limit the winding shaft from rotating in one direction; The limiting device includes: a limiting top cover and a servo; the limiting top cover is hinged at the bottom end of the bomb tube; a connecting piece is arranged at the edge of the limiting top cover; the servo is fixed to the side of the bottom end of the bomb tube, a servo arm is installed on the servo, and the servo is used to control the rotation of the servo arm; a connecting rod is installed at the end of the servo arm, and a limiting pin is installed at the end of the connecting rod; the limiting pin is used to limit the movement of the connecting piece; the servo arm, the connecting rod and the limiting pin are movably connected, and when the servo arm rotates, it drives the connecting rod to move, and the connecting rod drives the limiting pin to move.

2. The drone airborne bombing system according to claim 1, characterized in that: The limiting device comprises: a guide sleeve, a top end of which is provided with two protruding fixing rods, the fixing rods are respectively fixedly connected to the connecting member and the steering gear, and the guide sleeve is used to control the movement direction of the limiting latch.

3. The drone airborne bombing system according to claim 2, characterized in that: The connecting piece is a U-shaped structure, and a roller is installed inside the connecting piece through a rotating shaft, and the roller is used to reduce the friction between the limiting latch and the connecting piece.

4. The drone airborne bombing system according to claim 3, characterized in that: It also includes a pitch platform, which is installed below the drone through a quick-release assembly. A control box is installed below the pitch platform, and the control box and the pitch platform are rotatably connected.

5. The drone airborne bombing system according to claim 4, characterized in that: The pitch platform and the control box are provided with countersunk holes for reducing the deadweight of the UAV airborne bombing system.

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