Unmanned aerial vehicle catching net recoil-free ejection device
The potential energy of the compressed spring is converted into axial thrust and radial rotational motion through the recoilless ejection device, which solves the problem of large recoil when the unmanned aerial vehicle net device is launched, realizes the stable capture of small drones, and reduces the cost and difficulty of use.
Patent Information
- Application Number
- CN202511102764.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2025-09-16
AI Technical Summary
Existing unmanned aerial vehicle netting devices produce large recoil when launched, requiring large drones to maintain stable and accurate capture, which increases the difficulty and cost of use.
A recoil-free ejection device is used, including a launching bracket, an ejection mechanism, a compression spring, a bracket screw, a locking sleeve, a connecting chuck and a net head assembly. The potential energy of the compression spring is converted into axial thrust and radial rotational motion to reduce recoil and ensure that the net head assembly flies toward the target along a predetermined trajectory.
It significantly reduces the recoil when the capture net is launched, allowing small drones to stably capture targets and lowering the equipment's requirements for the carrier, making it suitable for intercepting unmanned aerial vehicles in daily production and life.
Smart Images
Figure CN120646277A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of low-altitude air defense, in particular to a recoilless ejection device for an unmanned aerial vehicle capture net. Background Art
[0002] Currently, various unmanned aerial vehicles (UAVs) are widely used in daily life, manufacturing, photography, military industry, and science and technology. However, due to the lack of comprehensive laws and regulations to regulate the proper use of UAVs, excessive UAV use poses a threat to the environment and people. Therefore, measures are needed to repel, intercept, and even capture UAVs to ensure normal life and production.
[0003] To address these challenges, various unmanned aerial vehicle (UAV) netting devices have emerged. To achieve a long flight distance and wide opening, these nets require significant potential energy, such as that from compressed springs, compressed gas, and explosive gunpowder, to propel the net. This potential energy release creates both a forward thrust and a significant backward recoil. For this reason, most current UAV nets are designed for ground-launched (shoulder-mounted or handheld) deployment. This approach can only capture targets visible to the naked eye; at greater distances or through obstructions, they are unable to capture. This necessitates the use of drones as carriers, carrying the UAV net very close to the target and then instantly launching it for precise capture.
[0004] Since launching a UAV to catch a net generates a large recoil, a large UAV is needed to maintain stable and accurate target capture, which increases the difficulty and cost of using the UAV to catch a net. Summary of the Invention
[0005] The purpose of the present invention is to provide a recoil-free ejection device for an unmanned aerial vehicle capture net, which solves the technical problem in the prior art that a large recoil is generated when launching an unmanned aerial vehicle capture net, requiring a large drone to maintain stable and accurate target capture, thereby increasing the difficulty and cost of using the unmanned aerial vehicle capture net.
[0006] To achieve the above-mentioned purpose, the present invention adopts a recoilless ejection device for an unmanned aerial vehicle capture net, which includes a launching bracket and an ejection mechanism; the ejection mechanism includes a compression spring, a bracket screw, a locking sleeve, a connecting chuck and a net head assembly, the compression spring is fixedly connected to the launching bracket and is located inside the launching bracket, the bracket screw is fixedly connected to the launching bracket and is located above the launching bracket, the locking sleeve is threadedly connected to the bracket screw and is located above the bracket screw, the connecting chuck is threadedly connected to the bracket screw and is located outside the bracket screw, and the net head assembly is detachably connected to the connecting chuck and is located above the connecting chuck.
[0007] Wherein, the launching bracket has a cavity.
[0008] The launching bracket further comprises a fixing rod and a trigger. The fixing rod is fixedly connected to the launching bracket and is located in the cavity. The trigger is rotatably connected to the fixing rod and is located outside the fixing rod.
[0009] The surface of the bracket screw has a screw force groove, and the bracket screw also has a through groove adapted to the trigger, and the trigger passes through the through groove.
[0010] The connecting chuck has a guide ball and a push spring. The guide ball is fixedly connected to the connecting chuck and is located outside the screw force groove. The push spring is fixedly connected to the connecting chuck and is located inside the connecting chuck.
[0011] Wherein, the connecting chuck has a clamping groove adapted to the trigger.
[0012] Wherein, the net head assembly includes a net shell and an elastic clip. The net shell is detachably connected to the connecting chuck and is located on the outside of the connecting chuck. The elastic clip is detachably connected to the connecting chuck and is located inside the net shell.
[0013] Wherein, the net casing has a storage cavity.
[0014] Wherein, the capture net head assembly further includes a capture net body and a counterweight block, the capture net body is arranged in the storage cavity, the counterweight block is fixedly connected to the capture net body and is located outside the push spring.
[0015] Wherein, the net shell also has a guide groove.
[0016] The present invention provides a recoil-free ejection device for an unmanned aerial vehicle capture net. During specific use, the connecting chuck is installed on the outside of the bracket screw, so that the compression spring is compressed in the launching bracket. The locking sleeve is used to limit the connecting chuck. The bracket screw is used for the launching operation of the capture net head assembly. When subjected to an external force, the compressed potential energy of the compression spring is released, generating a thrust along the axial direction of the launching bracket, pushing the capture net head assembly to move axially along the launching bracket. Under the action of the bracket screw and the connecting chuck, the linear axial motion of the capture net head assembly is instantly converted into radial rotational motion, and at the same time, it is continuously pushed outward along the bracket screw, thereby solving the technical problem that a large recoil is generated when launching the unmanned aerial vehicle capture net, which increases the difficulty and cost of using the unmanned aerial vehicle capture net. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 The present invention is a structural schematic diagram of a recoilless ejection device for an unmanned aerial vehicle capture net.
[0019] Figure 2 The present invention is a cross-sectional view of the structure of a recoilless ejection device of a capture net for an unmanned aerial vehicle.
[0020] Figure 3 The present invention Figure 2 A magnified view of the local structure at point A.
[0021] Figure 4 The present invention is a partial structural diagram of a recoilless ejection device for an unmanned aerial vehicle capture net.
[0022] Figure 5 It is a structural schematic diagram of the launching bracket of the present invention.
[0023] Figure 6 The present invention Figure 5 A magnified view of the local structure at point B.
[0024] Figure 7 It is a structural schematic diagram of the connection chuck of the present invention.
[0025] Figure 8 It is a structural schematic diagram of the net head assembly of the present invention.
[0026] 101-launching bracket, 102-compression spring, 103-bracket screw, 104-locking sleeve, 105-cavity, 106-fixing rod, 107-trigger, 108-screw force groove, 109-through groove, 201-connecting chuck, 202-guide ball, 203-push spring, 204-clamping groove, 301-net shell, 302-elastic buckle, 303-storage chamber, 304-capture net body, 305-counterweight block, 306-guide groove. DETAILED DESCRIPTION
[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0028] See also Figure 1 and Figure 8 ,in Figure 1 This is a structural diagram of a recoilless ejection device for capturing a net of an unmanned aerial vehicle according to the present invention. Figure 2 This is a structural cross-sectional view of a recoilless ejection device for a capture net of an unmanned aerial vehicle according to the present invention. Figure 3 The present invention Figure 2 A magnified view of the local structure at point A, Figure 4 This is a partial structural diagram of a recoilless ejection device for capturing a net of an unmanned aerial vehicle according to the present invention. Figure 5 It is a structural diagram of the launch bracket of the present invention, Figure 6 The present invention Figure 5 A magnified view of the local structure at point B. Figure 7 It is a structural diagram of the connection chuck of the present invention, Figure 8 It is a structural schematic diagram of the net head assembly of the present invention.
[0029] The present invention provides a recoil-free ejection device for an unmanned aerial vehicle capture net, comprising a launching bracket 101 and an ejection mechanism. The launching bracket 101 has a fixing rod 106 and a trigger 107. The ejection mechanism comprises a compression spring 102, a bracket screw 103, a locking sleeve 104, a connecting chuck 201, and a capture net head assembly. The connecting chuck 201 has a guide ball 202 and a push spring 203. The capture net head assembly comprises a capture net housing 301, an elastic buckle 302, a capture net body 304, and a counterweight 305. This device solves the technical problem in the prior art that a large recoil is generated when launching an unmanned aerial vehicle capture net, requiring a large unmanned aerial vehicle to achieve stable and accurate target capture, thereby increasing the difficulty and cost of using the unmanned aerial vehicle capture net.
[0030] According to this specific embodiment, the ejection mechanism includes a compression spring 102, a bracket screw 103, a locking sleeve 104, a connecting chuck 201 and a net head assembly, wherein the compression spring 102 is fixedly connected to the launching bracket 101 and is located in the launching bracket 101, the bracket screw 103 is fixedly connected to the launching bracket 101 and is located above the launching bracket 101, the locking sleeve 104 is threadedly connected to the bracket screw 103 and is located above the bracket screw 103, the connecting chuck 201 is threadedly connected to the bracket screw 103 and is located on the outside of the bracket screw 103, the net head assembly is detachably connected to the connecting chuck 201 and is located above the connecting chuck 201, the connecting chuck 201 is installed on the outside of the bracket screw 103, so that the compression spring 102 is compressed in the launching bracket 101, the locking sleeve 104 is used to limit the connecting chuck 201, the bracket screw The rod 103 is used for the launching operation of the net head assembly. When subjected to external force, the compressed potential energy of the compression spring 102 is released, generating a thrust along the axial direction of the launching bracket 101, pushing the net head assembly to move axially along the launching bracket 101. Under the action of the bracket screw 103 and the connecting chuck 201, the linear axial motion of the net head assembly is instantly converted into radial rotational motion, and at the same time, it is continuously pushed outward along the bracket screw 103. Through the above-mentioned motion conversion, most of the potential energy released by the compression spring 102 is converted into the rotational centrifugal force and forward pushing force of the net head assembly, which significantly reduces the impact of the backward recoil on the carrier drone, so that the drone can remain stable and not shake, ensuring that the net head assembly flies to the target along the predetermined trajectory to complete the capture of the target aircraft, thereby solving the technical problem that a large recoil is generated when launching the unmanned aerial vehicle to capture the net, which increases the difficulty and cost of using the unmanned aerial vehicle net.
[0031] The launching bracket 101 has a cavity 105 .
[0032] Secondly, the launching bracket 101 also has a fixing rod 106 and a trigger 107. The fixing rod 106 is fixedly connected to the launching bracket 101 and is located in the cavity 105. The trigger 107 is rotatably connected to the fixing rod 106 and is located on the outside of the fixing rod 106. The fixing rod 106 is arranged in the cavity 105. The trigger 107 rotates around the fixing rod 106. The trigger 107 is used to limit the connecting chuck 201 to prevent the connecting chuck 201 from being directly triggered by the compression spring 102. After the UAV carrying device flies to the close range of the target, the trigger 107 is acted on by an external force such as remote control or a trigger mechanism, so that the trigger 107 is unlocked and the compression potential energy of the compression spring 102 is released.
[0033] At the same time, the surface of the bracket screw 103 has a screw force groove 108, and the bracket screw 103 also has a through groove adapted to the trigger trigger 107, and the trigger trigger 107 passes through the through groove. The trigger trigger 107 is clamped with the connecting chuck 201 by passing through the through groove. Under the spiral guiding action of the screw force groove 108, the linear axial movement of the connecting chuck 201 and the net head assembly is instantly converted into radial rotational motion, and is continuously pushed outward by the screw force groove 108.
[0034] In addition, the connecting chuck 201 has a guide ball 202 and a push spring 203. The guide ball 202 is fixedly connected to the connecting chuck 201 and is located on the outside of the screw force groove 108. The push spring 203 is fixedly connected to the connecting chuck 201 and is located inside the connecting chuck 201. The connecting chuck 201 moves along the outside of the screw force groove 108 through the guide ball 202. The push spring 203 is arranged inside the connecting chuck 201.
[0035] Secondly, the connecting chuck 201 has a snap-in slot 204 adapted to the trigger 107 . The trigger 107 passes through the through slot and is snap-in connected to the connecting chuck 201 through the snap-in slot 204 , preventing the connecting chuck 201 from being directly triggered by the compression spring 102 .
[0036] At the same time, the net head assembly includes a net shell 301 and an elastic clip 302. The net shell 301 is detachably connected to the connecting chuck 201 and is located on the outside of the connecting chuck 201. The elastic clip 302 is detachably connected to the connecting chuck 201 and is located inside the net shell 301. The net shell 301 is sleeved on the outside of the connecting chuck 201 and is clamped to the connecting chuck 201 through the elastic clip 302.
[0037] In addition, the net housing 301 has a storage cavity 303 .
[0038] Secondly, the capture net head assembly also includes a capture net body 304 and a counterweight block 305. The capture net body 304 is arranged in the storage cavity 303. The counterweight block 305 is fixedly connected to the capture net body 304 and is located on the outside of the push spring 203. The capture net body 304 is arranged in the storage cavity 303. The counterweight block 305 is connected to the capture net body 304 through a cable and is located on the outside of the push spring 203. The counterweight block 305 is used to open the capture net body 304 after the capture net body 304 is launched.
[0039] At the same time, the net housing 301 also has a guide groove 306, and the guide groove 306 is used to reduce the resistance of the rotation centrifuge.
[0040] The recoil-free ejection device for capturing a UAV net of the present embodiment is used. By setting the launching bracket 101 and the ejection mechanism, when it is used, the compression spring 102 is installed inside the launching bracket 101, the connecting chuck 201 is connected to the front end of the compression spring 102, and the guide ball 202 is embedded in the screw force groove 108 of the bracket screw 103; the trigger 107 passes through the through groove and is engaged with the connecting chuck 201 through the engaging groove 204, thereby locking the compression spring 102. The compression spring 102 is in a compressed state, and the folded capture net body 304 is pre-stored inside the capture net housing 301. After the UAV-mounted device flies to a close range of the target, an external force such as a remote control or a trigger mechanism acts on the trigger 107, so that the trigger 107 is unlocked, and the compression potential energy of the compression spring 102 is released, pushing the connecting chuck 201 and the capture net housing 301 to move axially along the support screw 103. The connecting chuck 201 and the capture net housing 301 move along the screw force groove 108. The outer side of the net cover 301 moves, and the linear axial motion of the net cover 301 is instantly converted into radial rotational motion. At the same time, the screw force groove 108 on the surface of the bracket screw 103 continues to push outward, so that during the process of the axial and radial rotational composite motion of the connecting chuck 201 and the net cover 301 along the launching bracket 101, when the guide ball 202 moves along the screw force groove 108 to the end of the bracket screw 103, the locking sleeve 104 restricts the connecting chuck 201, and the push spring 203 pushes The elastic buckle 302 of the capture net shell 301 is disengaged from the connecting chuck 201, and under the coordinated action of centrifugal force and the push spring 203, the folded capture net body 304 is instantly unfolded, flying toward the target along a predetermined trajectory to cover the movement path of the target aircraft, completing the capture operation. In this way, by converting axial thrust into radial rotational centrifugal force, the recoil force of the capture net during launch is greatly reduced, so that small drones can be stably carried, reducing the equipment's requirements for the carrier, and can be widely used in unmanned aerial vehicle interception scenarios in daily production and life.
[0041] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.
Claims
1. A recoilless ejection device for capturing a net of an unmanned aerial vehicle, comprising a launching bracket, characterized in that: Also includes an ejection mechanism; The ejection mechanism includes a compression spring, a bracket screw, a locking sleeve, a connecting chuck and a net head assembly. The compression spring is fixedly connected to the launching bracket and is located inside the launching bracket. The bracket screw is fixedly connected to the launching bracket and is located above the launching bracket. The locking sleeve is threadedly connected to the bracket screw and is located above the bracket screw. The connecting chuck is threadedly connected to the bracket screw and is located outside the bracket screw. The net head assembly is detachably connected to the connecting chuck and is located above the connecting chuck.
2. The recoilless ejection device for capturing a UAV net according to claim 1, wherein: The launching bracket has a cavity.
3. The recoilless ejection device for capturing a UAV net as claimed in claim 2, characterized in that: The launching bracket further comprises a fixing rod and a trigger. The fixing rod is fixedly connected to the launching bracket and is located in the cavity. The trigger is rotatably connected to the fixing rod and is located outside the fixing rod.
4. The recoilless ejection device for capturing a UAV net as claimed in claim 3, characterized in that: The surface of the bracket screw is provided with a screw force groove, and the bracket screw is also provided with a through groove adapted to the trigger, and the trigger passes through the through groove.
5. The recoilless ejection device for capturing a UAV net as claimed in claim 4, characterized in that: The connecting chuck has a guide ball and a push spring. The guide ball is fixedly connected to the connecting chuck and is located outside the screw force groove. The push spring is fixedly connected to the connecting chuck and is located inside the connecting chuck.
6. The recoilless ejection device for capturing a UAV net as claimed in claim 5, characterized in that: The connecting chuck has a clamping groove adapted to the trigger.
7. The recoilless ejection device for capturing a UAV net according to claim 6, wherein: The net head assembly includes a net shell and an elastic buckle. The net shell is detachably connected to the connecting chuck and is located outside the connecting chuck. The elastic buckle is detachably connected to the connecting chuck and is located inside the net shell.
8. The recoilless ejection device for capturing a UAV net as claimed in claim 7, characterized in that: The net casing has a storage cavity.
9. The UAV capture net recoilless ejection device according to claim 8, characterized in that: The capture net head assembly further comprises a capture net body and a counterweight block. The capture net body is arranged in the storage cavity. The counterweight block is fixedly connected to the capture net body and is located outside the push spring.
10. The recoilless ejection device for capturing a UAV net according to claim 9, wherein: The net casing also has a guide groove.