Downward hanging type catching net launching device

Abstract

The utility model discloses a lower hanging type catching net launching device which comprises a launching cylinder which is of a rectangular cylindrical structure. The catching net is folded and stored at the front end of the inner cavity of the launching cylinder; the launching mechanism is arranged in an inner cavity of the launching cylinder, is in a compressed to-be-launched state in a standby state, and can trigger a launching action, and the launching action of the launching mechanism can eject the catching net and rapidly unfold the catching net; and the triggering mechanism is mounted at the tail part of the inner cavity of the launching cylinder and is used for triggering the launching action of the launching mechanism to eject the capturing net. The device is novel in structural design, adopts a mechanical structure as a trigger structure, adopts the spring as power, is high in safety, stable in structure, not easy to damage, low in manufacturing cost and low in use cost, and greatly saves the economic cost for countering illegal unmanned aerial vehicles.

Description

Technical Field

[0001] The utility model relates to a bottom-hanging capture net launching device, belonging to the technical field of capture devices. Background Art

[0002] In existing technologies, with the rapid development of the drone market, drones will undoubtedly pose hidden dangers of security and economic losses to society in special places such as civil aviation airports, confidential places, and public places. They may also bring security issues such as affecting aviation order, intruding into sensitive areas, and dropping prohibited items. Therefore, civil drones must be managed in an orderly manner, and effective measures must be taken to capture harmful, dangerous and suspicious drones.

[0003] When capturing illegal drones, a capture net is often deployed. However, existing technologies often use gunpowder or other methods to launch these nets, which are expensive to manufacture and increase the cost of deployment. This makes them unsuitable for frequent and repeated use, making them impractical for universal use. Furthermore, existing capture net launchers are difficult to mount on other equipment, failing to meet user requirements. Therefore, we propose a drone capture device that is easily mountable on other equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a bottom-hanging capture net launching device with a simple trigger structure, a long range, simple operation, low cost, and easy to be mounted on other equipment for use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a bottom-hanging capture net launching device, comprising:

[0006] A launching tube, wherein the launching tube is a rectangular cylindrical structure;

[0007] The capture net is folded and stored at the front end of the launch tube cavity, adopting a serpentine folding method to avoid entanglement and facilitate timely deployment after shooting;

[0008] A launching mechanism is placed in the inner cavity of the launching tube and is in a compressed and ready-to-fire state when on standby. The launching action of the launching mechanism can eject the capture net and quickly deploy it;

[0009] A trigger mechanism is installed at the rear end of the launch tube cavity and is used to trigger the launch mechanism to shoot out the capture net;

[0010] The mounting rail can be detachably mounted on the outer surface of the launch tube, making it easy to mount on other equipment, such as drones.

[0011] The aforementioned under-hung capture net launching device, wherein the launching mechanism includes a plurality of launch tubes, the plurality of launch tubes being arranged in a divergent shape along the rear end of the launch tube in the forward direction, so as to facilitate rapid deployment of the capture net when it is launched. A launch rod is inserted into the launch tube, and a spring is sleeved on the launch rod along the rear end forward. A raised cap for limiting the spring is provided at the front end of the launch rod, and the capture net is evenly connected to the top of the launch rod on all sides.

[0012] The tail end of the launch tube is provided with a limit plate and a positioning plate in sequence from the back to the front. The tail end of the launch tube passes through the positioning plate and is fixed to the front surface of the limit plate. The tail end of the ejection rod passes through the positioning plate and is provided with a rope threading hole. A fixed rope connected end to end is passed through the rope threading hole at the tail end of the ejection rod.

[0013] The launching mechanism has two states: in the standby state, the fixed rope is connected to fix the ejection rod after compressing the spring, waiting to be triggered; in the trigger state, the fixed rope is loosened, and the ejection rod is no longer fixed and is ejected under the action of the spring. At the same time, the ejected ejection rod drives the capture net to be ejected and quickly deployed.

[0014] The aforementioned bottom-hanging capture net launching device, the trigger mechanism includes a knife barrel with an open end and a trigger rod, the knife barrel is fixed to the rear side wall of the positioning plate, the trigger spring and the cutter are sequentially inserted into the knife barrel, the knife barrel side wall is provided with an external plug hole, the tail handle of the cutter is provided with an internal plug hole corresponding to the external plug hole, one end of the trigger rod is inserted into the external plug hole and the internal plug hole, the other end of the trigger rod extends to the outside of the launch barrel surface, the knife barrel open end side wall is provided with a penetrating circular hole, the fixing rope is provided through the circular hole;

[0015] When the trigger mechanism is on standby, the cutter compresses the trigger spring and is clamped in the knife barrel through the trigger rod. The fixing rope passes through the round hole. When the trigger action is performed, the trigger rod is pressed to leave the knife barrel. The cutter rushes forward under the action of the trigger spring, cutting the fixing rope in a taut state. The fixing rope loses its fixing effect on the ejection rod, causing the launch mechanism to be triggered.

[0016] In the aforementioned bottom-hanging capture net launching device, a threading tube is provided in the rope threading hole at the tail of each ejection rod, and the fixed rope passes through the threading tube. The edges of both ends of the threading tube are smooth arc surfaces to prevent the edges from causing wear of the fixed rope.

[0017] The aforementioned bottom-hanging capture net launching device has a resettable button device installed on the surface of the launching tube through a thread, one end of the trigger rod is provided with a return bend structure, the inner end of the button device is connected to the other end of the trigger rod, and the trigger rod is inserted into the outer socket and the inner socket along the side away from the button device through the return bend structure.

[0018] In the aforementioned under-hung capture net launching device, the raised cap at the front end of the ejection rod is provided with a threaded groove extending from the rear to the front, and one end of the spring is screwed into the threaded groove and fixed.

[0019] In the aforementioned under-hung capture net launching device, a front cover is movably mounted on the front end of the launching tube.

[0020] The aforementioned under-hung capture net launching device has a rear cover plate installed at the rear end of the launching tube.

[0021] In the aforementioned bottom-hanging capture net launching device, the mounting rail is mounted on the side wall of the launching tube by screws.

[0022] Compared to existing technologies, this new device boasts a novel design, employing a mechanical trigger mechanism and a spring as its driving force. It offers enhanced safety, a stable structure, and resistance to damage, along with low manufacturing and operational costs. This significantly reduces the cost of countering unauthorized drones and demonstrates its universal applicability. The device also features mounting rails for easy attachment to other equipment, such as drones, and is therefore widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the ejection rod of the utility model;

[0026] Figure 4 This is a schematic diagram of the installation structure of the threading pipe of the utility model;

[0027] Figure 5 This is a schematic diagram of the trigger mechanism structure of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the key device of the utility model.

[0029] Figure markings: 1-launching tube, 2-capture net, 3-launching mechanism, 301-launching tube, 302-ejection rod, 303-spring, 304-limiting plate, 305-positioning plate, 306-rope hole, 307-fixing rope, 308-threading tube, 4-trigger mechanism, 401-knife cylinder, 402-trigger spring, 403-cutter, 404-external socket, 405-inner socket, 406-trigger rod, 407-round hole, 5-mounting rail, 6-button device, 7-thread groove, 8-front cover, 9-rear cover.

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0031] Embodiment 1 of the present invention: A bottom-hanging capture net launching device, comprising:

[0032] A launch tube 1, wherein the launch tube 1 is a rectangular cylindrical structure;

[0033] The capture net 2 is folded and stored at the front end of the inner cavity of the launch tube 1, and adopts a serpentine folding method to avoid entanglement and facilitate timely unfolding after shooting;

[0034] The launching mechanism 3 is placed in the inner cavity of the launching tube 1 and is in a compressed and ready-to-fire state when on standby. The launching action of the launching mechanism 3 can eject the capture net 2 and quickly deploy it;

[0035] A trigger mechanism 4 is installed at the rear end of the inner cavity of the launch tube 1 and is used to trigger the launch mechanism 3 to shoot out the capture net 2;

[0036] The mounting rail 5 can be detachably mounted on the outer surface of the launch tube 1 to facilitate mounting on other equipment, such as drones.

[0037] Embodiment 2 of the present invention: A bottom-hanging capture net launching device, comprising:

[0038] A launch tube 1, wherein the launch tube 1 is a rectangular cylindrical structure;

[0039] The capture net 2 is folded and stored at the front end of the inner cavity of the launch tube 1, and adopts a serpentine folding method to avoid entanglement and facilitate timely unfolding after shooting;

[0040] The launching mechanism 3 is placed in the inner cavity of the launching tube 1 and is in a compressed and ready-to-fire state when on standby. The launching action of the launching mechanism 3 can eject the capture net 2 and quickly deploy it;

[0041] A trigger mechanism 4 is installed at the rear end of the inner cavity of the launch tube 1 and is used to trigger the launch mechanism 3 to shoot out the capture net 2;

[0042] The mounting rail 5 can be detachably mounted on the outer surface of the launch tube 1 to facilitate mounting on other equipment, such as drones.

[0043] The launching mechanism 3 includes a plurality of launching tubes 301, which are arranged in a divergent shape along the rear end of the launching tube 1 in a forward direction to facilitate the rapid deployment of the capture net 2 when it is launched. A launching rod 302 is inserted into the launching tube 301, and a spring 303 is sleeved on the launching rod 302 along the rear end. A raised cap for limiting the spring 303 is provided at the front end of the launching rod 302. The capture net 2 is evenly connected to the top of the launching rod 302 on all sides.

[0044] The tail end of the launch tube 1 is provided with a limit plate 304 and a positioning plate 305 in sequence from the back to the front. The tail end of the launch tube 301 passes through the positioning plate 305 and is fixed to the front surface of the limit plate 304. The tail end of the ejection rod 302 passes through the positioning plate 305 and is provided with a rope threading hole 306. A fixed rope 307 is passed through the rope threading hole 306 at the tail end of the ejection rod 302.

[0045] The launching mechanism 3 has two states: in the standby state, the fixing rope 307 is connected so that the ejection rod 302 compresses the spring 303 and is fixed, waiting to be triggered; in the triggering state, the fixing rope 307 is loosened, and the ejection rod 302 is no longer fixed and is ejected under the action of the spring 303. At the same time, the ejected ejection rod 302 drives the capture net 2 to be ejected and quickly deployed.

[0046] Embodiment 3 of the present invention: A bottom-hanging capture net launching device, comprising:

[0047] A launch tube 1, wherein the launch tube 1 is a rectangular cylindrical structure;

[0048] The capture net 2 is folded and stored at the front end of the inner cavity of the launch tube 1, and adopts a serpentine folding method to avoid entanglement and facilitate timely unfolding after shooting;

[0049] The launching mechanism 3 is placed in the inner cavity of the launching tube 1 and is in a compressed and ready-to-fire state when on standby. The launching action of the launching mechanism 3 can eject the capture net 2 and quickly deploy it;

[0050] A trigger mechanism 4 is installed at the rear end of the inner cavity of the launch tube 1 and is used to trigger the launch mechanism 3 to shoot out the capture net 2;

[0051] The mounting rail 5 can be detachably mounted on the outer surface of the launch tube 1 to facilitate mounting on other equipment, such as drones.

[0052] The launching mechanism 3 includes a plurality of launching tubes 301, which are arranged in a divergent shape along the rear end of the launching tube 1 in a forward direction to facilitate the rapid deployment of the capture net 2 when it is launched. A launching rod 302 is inserted into the launching tube 301, and a spring 303 is sleeved on the launching rod 302 along the rear end. A raised cap for limiting the spring 303 is provided at the front end of the launching rod 302. The capture net 2 is evenly connected to the top of the launching rod 302 on all sides.

[0053] The tail end of the launch tube 1 is provided with a limit plate 304 and a positioning plate 305 in sequence from the back to the front. The tail end of the launch tube 301 passes through the positioning plate 305 and is fixed to the front surface of the limit plate 304. The tail end of the ejection rod 302 passes through the positioning plate 305 and is provided with a rope threading hole 306. A fixed rope 307 is passed through the rope threading hole 306 at the tail end of the ejection rod 302.

[0054] The launching mechanism 3 has two states: in the standby state, the fixing rope 307 is connected so that the ejection rod 302 compresses the spring 303 and is fixed, waiting to be triggered; in the triggering state, the fixing rope 307 is loosened, and the ejection rod 302 is no longer fixed and is ejected under the action of the spring 303. At the same time, the ejected ejection rod 302 drives the capture net 2 to be ejected and quickly deployed.

[0055] The trigger mechanism 4 includes a knife barrel 401 with an open end and a trigger rod 406. The knife barrel 401 is fixed to the rear side wall of the positioning plate 305. The trigger spring 402 and the cutter 403 are sequentially inserted into the knife barrel 401. The side wall of the knife barrel 401 is provided with an external plug hole 404. The tail handle of the cutter 403 is provided with an internal plug hole 405 corresponding to the external plug hole 404. One end of the trigger rod 406 is inserted into the external plug hole 404 and the internal plug hole 405. The other end of the trigger rod 406 extends to the outside of the surface of the launch tube 1. The side wall of the open end of the knife barrel 401 is provided with a penetrating circular hole 407, and the fixing rope 307 is provided through the circular hole 407.

[0056] When the trigger mechanism 4 is on standby, the cutter 403 compresses the trigger spring 402 and is clamped in the knife barrel 401 through the trigger rod 406. The fixing rope 307 passes through the circular hole 407. When the trigger action is performed, the trigger rod 406 is pressed to leave the knife barrel 401. The cutter 403 rushes forward under the action of the trigger spring 402, cutting the fixing rope 307 in a taut state. The fixing rope 307 loses its fixing effect on the ejection rod 302, causing the launch mechanism 3 to be triggered.

[0057] Embodiment 4 of the present invention: A bottom-hanging capture net launching device, comprising:

[0058] A launch tube 1, wherein the launch tube 1 is a rectangular cylindrical structure;

[0059] The capture net 2 is folded and stored at the front end of the inner cavity of the launch tube 1, and adopts a serpentine folding method to avoid entanglement and facilitate timely unfolding after shooting;

[0060] The launching mechanism 3 is placed in the inner cavity of the launching tube 1 and is in a compressed and ready-to-fire state when on standby. The launching action of the launching mechanism 3 can eject the capture net 2 and quickly deploy it;

[0061] A trigger mechanism 4 is installed at the rear end of the inner cavity of the launch tube 1 and is used to trigger the launch mechanism 3 to shoot out the capture net 2;

[0062] The mounting rail 5 can be detachably mounted on the outer surface of the launch tube 1 to facilitate mounting on other equipment, such as drones.

[0063] The launching mechanism 3 includes a plurality of launching tubes 301, which are arranged in a divergent shape along the rear end of the launching tube 1 in a forward direction to facilitate the rapid deployment of the capture net 2 when it is launched. A launching rod 302 is inserted into the launching tube 301, and a spring 303 is sleeved on the launching rod 302 along the rear end. A raised cap for limiting the spring 303 is provided at the front end of the launching rod 302. The capture net 2 is evenly connected to the top of the launching rod 302 on all sides.

[0064] The tail end of the launch tube 1 is provided with a limit plate 304 and a positioning plate 305 in sequence from the back to the front. The tail end of the launch tube 301 passes through the positioning plate 305 and is fixed to the front surface of the limit plate 304. The tail end of the ejection rod 302 passes through the positioning plate 305 and is provided with a rope threading hole 306. A fixed rope 307 is passed through the rope threading hole 306 at the tail end of the ejection rod 302.

[0065] The launching mechanism 3 has two states: in the standby state, the fixing rope 307 is connected so that the ejection rod 302 compresses the spring 303 and is fixed, waiting to be triggered; in the triggering state, the fixing rope 307 is loosened, and the ejection rod 302 is no longer fixed and is ejected under the action of the spring 303. At the same time, the ejected ejection rod 302 drives the capture net 2 to be ejected and quickly deployed.

[0066] The trigger mechanism 4 includes a knife barrel 401 with an open end and a trigger rod 406. The knife barrel 401 is fixed to the rear side wall of the positioning plate 305. The trigger spring 402 and the cutter 403 are sequentially inserted into the knife barrel 401. The side wall of the knife barrel 401 is provided with an external plug hole 404. The tail handle of the cutter 403 is provided with an internal plug hole 405 corresponding to the external plug hole 404. One end of the trigger rod 406 is inserted into the external plug hole 404 and the internal plug hole 405. The other end of the trigger rod 406 extends to the outside of the surface of the launch tube 1. The side wall of the open end of the knife barrel 401 is provided with a penetrating circular hole 407, and the fixing rope 307 is provided through the circular hole 407.

[0067] When the trigger mechanism 4 is on standby, the cutter 403 compresses the trigger spring 402 and is clamped in the knife barrel 401 through the trigger rod 406. The fixing rope 307 passes through the circular hole 407. When the trigger action is performed, the trigger rod 406 is pressed to leave the knife barrel 401. The cutter 403 rushes forward under the action of the trigger spring 402, cutting the fixing rope 307 in a taut state. The fixing rope 307 loses its fixing effect on the ejection rod 302, causing the launch mechanism 3 to be triggered.

[0068] A resettable button device 6 is installed on the surface of the launching tube 1 through a thread. One end of the trigger rod 406 is provided with a return bend structure. The inner end of the button device 6 is connected to the other end of the trigger rod 406. The trigger rod 406 is inserted into the external socket 404 and the internal socket 405 along the side away from the button device 6 through the return bend structure. The button facilitates the trigger operation. An electronic control device can also be used instead of the button device 6 to realize remote control and automatic control.

[0069] Embodiment 5 of the present invention: A bottom-hanging capture net launching device, comprising:

[0070] A launch tube 1, wherein the launch tube 1 is a rectangular cylindrical structure;

[0071] The capture net 2 is folded and stored at the front end of the inner cavity of the launch tube 1, and adopts a serpentine folding method to avoid entanglement and facilitate timely unfolding after shooting;

[0072] The launching mechanism 3 is placed in the inner cavity of the launching tube 1 and is in a compressed and ready-to-fire state when on standby. The launching action of the launching mechanism 3 can eject the capture net 2 and quickly deploy it;

[0073] A trigger mechanism 4 is installed at the rear end of the inner cavity of the launch tube 1 and is used to trigger the launch mechanism 3 to shoot out the capture net 2;

[0074] The mounting rail 5 can be detachably mounted on the outer surface of the launch tube 1 to facilitate mounting on other equipment, such as drones.

[0075] The launching mechanism 3 includes a plurality of launching tubes 301, which are arranged in a divergent shape along the rear end of the launching tube 1 in a forward direction to facilitate the rapid deployment of the capture net 2 when it is launched. A launching rod 302 is inserted into the launching tube 301, and a spring 303 is sleeved on the launching rod 302 along the rear end. A raised cap for limiting the spring 303 is provided at the front end of the launching rod 302. The capture net 2 is evenly connected to the top of the launching rod 302 on all sides.

[0076] The tail end of the launch tube 1 is provided with a limit plate 304 and a positioning plate 305 in sequence from the back to the front. The tail end of the launch tube 301 passes through the positioning plate 305 and is fixed to the front surface of the limit plate 304. The tail end of the ejection rod 302 passes through the positioning plate 305 and is provided with a rope threading hole 306. A fixed rope 307 is passed through the rope threading hole 306 at the tail end of the ejection rod 302.

[0077] The launching mechanism 3 has two states: in the standby state, the fixing rope 307 is connected so that the ejection rod 302 compresses the spring 303 and is fixed, waiting to be triggered; in the triggering state, the fixing rope 307 is loosened, and the ejection rod 302 is no longer fixed and is ejected under the action of the spring 303. At the same time, the ejected ejection rod 302 drives the capture net 2 to be ejected and quickly deployed.

[0078] The trigger mechanism 4 includes a knife barrel 401 with an open end and a trigger rod 406. The knife barrel 401 is fixed to the rear side wall of the positioning plate 305. The trigger spring 402 and the cutter 403 are sequentially inserted into the knife barrel 401. The side wall of the knife barrel 401 is provided with an external plug hole 404. The tail handle of the cutter 403 is provided with an internal plug hole 405 corresponding to the external plug hole 404. One end of the trigger rod 406 is inserted into the external plug hole 404 and the internal plug hole 405. The other end of the trigger rod 406 extends to the outside of the surface of the launch tube 1. The side wall of the open end of the knife barrel 401 is provided with a penetrating circular hole 407, and the fixing rope 307 is provided through the circular hole 407.

[0079] When the trigger mechanism 4 is on standby, the cutter 403 compresses the trigger spring 402 and is clamped in the knife barrel 401 through the trigger rod 406. The fixing rope 307 passes through the circular hole 407. When the trigger action is performed, the trigger rod 406 is pressed to leave the knife barrel 401. The cutter 403 rushes forward under the action of the trigger spring 402, cutting the fixing rope 307 in a taut state. The fixing rope 307 loses its fixing effect on the ejection rod 302, causing the launch mechanism 3 to be triggered.

[0080] A resettable button device 6 is installed on the surface of the launching tube 1 through a thread. One end of the trigger rod 406 is provided with a return bend structure. The inner end of the button device 6 is connected to the other end of the trigger rod 406. The trigger rod 406 is inserted into the external socket 404 and the internal socket 405 along the side away from the button device 6 through the return bend structure. The button facilitates the trigger operation. An electronic control device can also be used instead of the button device 6 to realize remote control and automatic control.

[0081] Specifically, a threading tube 308 is provided in the threading hole 306 at the tail of each ejection rod 302 , and the fixing rope 307 is passed through the threading tube 308 . The edges of both ends of the threading tube 308 are smooth arc surfaces.

[0082] Specifically, the raised cap at the front end of the ejection rod 302 is provided with a threaded groove 7 extending from the back to the front. One end of the spring 303 is screwed into the threaded groove 7 and fixed, which facilitates the fixing of the spring 303. The ejection rod 302 and the spring 303 are ejected together, increasing the weight of the ejection rod 302 and making the flight more stable.

[0083] Specifically, a front cover plate 8 is movably installed at the front end of the launch tube 1, which can be removed before firing, or the front cover plate 8 can be directly knocked away and then fired. A rear cover plate 9 is installed at the rear end of the launch tube 1.

[0084] Specifically, the mounting rail 5 is mounted on the side wall of the launch tube 1 by screws, which is convenient for installation and replacement.

[0085] The working principle of an embodiment of the present invention is as follows: when the present invention is in the standby state, the ejection rod 302 compresses the spring 303 and is fixed by the fixing rope 307, and the capture net 2 is stored in the front end gap of the inner cavity of the launch tube 1 in a serpentine folding manner, the cutter 403 compresses the trigger spring 402, and is clamped in the knife barrel 401 through the trigger rod 406, and the fixing rope 307 passes through the round hole 407; when triggered, the button device 6 is pressed, the trigger rod 406 is pressed down, and the end of the trigger rod 406 inserted in the knife barrel 401 is pulled out, and the cutter 403 rushes forward under the action of the trigger spring 402, cutting off the taut fixing rope 307, and the fixing rope 307 loses its fixing effect on the ejection rod 302. The ejection rod 302 that has lost its fixation is ejected under the action of the spring 303, and at the same time, the ejected ejection rod 302 drives the capture net 2 to be ejected and quickly unfolded to capture the target.

Claims

1. A bottom-hanging capture net launching device, characterized in that: include A launching tube (1), wherein the launching tube (1) is a rectangular cylindrical structure; A capture net (2) is folded and stored in the front end of the inner cavity of the launch tube (1) A launching mechanism (3), the launching mechanism (3) is placed in the inner cavity of the launching tube (1), and the launching action of the launching mechanism (3) can shoot out and unfold the capture net (2); A trigger mechanism (4), the trigger mechanism (4) being installed at the rear end of the inner cavity of the launch tube (1) and used for triggering the launch mechanism (3) to initiate a launch action; A mounting slide rail (5) is detachably mounted on the outer surface of the launch tube (1).

2. A bottom-hanging capture net launching device according to claim 1, characterized in that: The launching mechanism (3) comprises a plurality of launching tubes (301), the plurality of launching tubes (301) being arranged in a divergent shape along the tail of the launching tube (1) in the forward direction, a launching rod (302) being inserted into the launching tube (301), a spring (303) being sleeved on the launching rod (302) along the tail forward direction, a protruding cap for limiting the spring (303) being provided at the front end of the launching rod (302), and the four sides of the capturing net (2) being evenly connected to the top of the launching rod (302); The inner cavity of the tail of the launch tube (1) is provided with a limit plate (304) and a positioning plate (305) in sequence from the back to the front. The tail of the launch tube (301) passes through the positioning plate (305) and is extended to be fixed to the front surface of the limit plate (304). The tail of the ejection rod (302) passes through the positioning plate (305) and is provided with a rope threading hole (306). A fixing rope (307) connected end to end is passed between the rope threading hole (306) at the tail of the ejection rod (302).

3. A bottom-hanging capture net launching device according to claim 2, characterized in that: A threading tube (308) is provided in the threading hole (306) at the tail of each ejection rod (302), and the fixing rope (307) is threaded in the threading tube (308). The edges of both ends of the threading tube (308) are both smooth arc surfaces.

4. A bottom-hanging capture net launching device according to claim 3, characterized in that: The trigger mechanism (4) comprises a knife barrel (401) with an opening at one end and a trigger rod (406). The knife barrel (401) is fixed to the rear side wall of the positioning plate (305). A trigger spring (402) and a cutter (403) are sequentially inserted into the knife barrel (401). An external insertion hole (404) is provided on the side wall of the knife barrel (401). An internal insertion hole (405) corresponding to the external insertion hole (404) is provided at the tail handle of the cutter (403). One end of the trigger rod (406) is inserted into the external insertion hole (404) and the internal insertion hole (405). The other end of the trigger rod (406) extends to the outside of the surface of the launch barrel (1). A penetrating circular hole (407) is provided on the side wall of the open end of the knife barrel (401). The fixing rope (307) is provided through the circular hole (407).

5. The bottom-hanging capture net launching device according to claim 4, characterized in that: A resettable button device (6) is threadedly mounted on the surface of the launch tube (1); one end of the trigger rod (406) is provided with a return bend structure; the inner end of the button device (6) is connected to the other end of the trigger rod (406); and the trigger rod (406) is inserted into the outer insertion hole (404) and the inner insertion hole (405) along the side away from the button device (6) through the return bend structure.

6. The bottom-hanging capture net launching device according to claim 5, characterized in that: The protruding cap at the front end of the ejection rod (302) is provided with a thread groove (7) extending from the rear to the front, and one end of the spring (303) is screwed into the thread groove (7) and fixed.

7. The bottom-hanging capture net launching device according to claim 1, characterized in that: A front cover plate (8) is movably mounted on the front end of the launch tube (1).

8. The bottom-hanging capture net launching device according to claim 1, characterized in that: A rear cover plate (9) is installed at the rear end of the launch tube (1).

9. The bottom-hanging capture net launching device according to claim 1, characterized in that: The mounting slide rail (5) is mounted on the side wall of the launch tube (1) via screws.

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