Quick-change type net gun head

Abstract

The utility model discloses a quick-change type net gun head which is applied to a firing device, the quick-change type net gun head is detachably connected with the firing device, the quick-change type net gun head comprises a gas cylinder connecting unit, a connecting head and a launching head, and the gas cylinder connecting unit and the launching head are both detachably connected with the connecting head. And the gas cylinder connecting unit is also used for mounting a gas cylinder and realizing the ejection of the capturing net by the ejection head when the gas cylinder is punctured by the percussion device. The quick-change type net gun head has the advantages of being convenient to operate, high in response speed, high in safety and reliability and good in concealment.

Description

Technical Field

[0001] This utility model belongs to the technical field of riot control device accessories, specifically relating to a quick-change net gun head. Background Technology

[0002] Non-lethal weapon firing devices (such as those used to launch capture nets) are widely used in hunting and security fields due to their varying ranges and operational characteristics. However, existing firing devices have some significant shortcomings: First, they generally use blank cartridges or gunpowder for firing, which are controlled substances. These devices generate significant recoil and noise, and are susceptible to damage from expired, damp, or misfired cartridges, as well as injuries from gunpowder fragments, resulting in high risk and poor reliability. Second, the maintenance of the net gun head in existing firing devices is inconvenient. For example, after launching a capture net, manual retrieval is usually required, a tedious and time-consuming process. Especially in situations requiring rapid action, this manual operation severely delays response time, increases operational difficulty, and raises the risk of errors and safety hazards. In summary, the slow speed of replacing or maintaining consumables in traditional firing devices makes them particularly inadequate and unreliable in scenarios requiring rapid response. Therefore, a quick-change net gun head is proposed. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by proposing a quick-change net gun head, which has the advantages of convenient operation, fast response speed, high safety and reliability, and good concealment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model proposes a quick-change net gun head, which is applied to a firing device. The quick-change net gun head is detachably connected to the firing device and includes a gas cylinder connection unit, a connector, and a firing head. Both the gas cylinder connection unit and the firing head are detachably connected to the connector. The gas cylinder connection unit is also used to install a gas cylinder and to enable the firing head to release the capture net when the firing device punctures the gas cylinder.

[0006] Preferably, the gas cylinder connection unit includes a gas cylinder fixing seat and a second limiting seat arranged coaxially. The gas cylinder is built into the gas cylinder fixing seat and its two ends are axially moved and limited by the gas cylinder fixing seat and the second limiting seat respectively. The second limiting seat is clamped and fixed by connecting it to the gas cylinder fixing seat through a connector.

[0007] Preferably, the gas cylinder connection unit further includes a pressure cap and a baffle arranged coaxially. The second limiting seat, the pressure cap and the baffle are arranged sequentially along the side away from the gas cylinder fixing seat and are clamped and fixed by the connection of the connector to the gas cylinder fixing seat. The baffle is broken by the airflow generated when the firing device punctures the gas cylinder.

[0008] Preferably, the second limiting seat is provided with a first through hole and a plurality of circumferentially distributed second limiting platforms. The second limiting platforms are used to abut and limit the gas cylinder. The pressure cap is provided with a second through hole coaxially, and the first through hole and the second through hole are coaxially arranged.

[0009] Preferably, the second limiting seat is also coaxially provided with a second sealing groove, and the pressure cover is coaxially provided with a second annular boss, the second sealing groove and the second annular boss cooperate to clamp the baffle.

[0010] Preferably, the launch head includes a mounting base, which includes a connecting cylinder, a flared mouth, and a receiving cylinder. The connecting cylinder and the receiving cylinder are coaxially arranged and have a circumferential gap. The flared mouth is connected to both the connecting cylinder and the receiving cylinder at the ends away from the gas cylinder, with the larger end facing outward. The flared mouth also has several fourth through holes that are inclined relative to the axis and communicate with the circumferential gap. The receiving cylinder is used to hold the net body of the capture net. The capture net also includes several hammers and several net hammers. Each net hammer is blocked in a fourth through hole and has a sixth through hole. Each hammer is blocked in a sixth through hole of the net hammer on the side near the gas cylinder. Each traction line on the net body of the capture net passes through a sixth through hole of the net hammer and is connected to the hammer.

[0011] Preferably, the launch head further includes a retaining ring and a first baffle, with the end of the mounting base away from the gas cylinder detachably connected to the retaining ring, and the first baffle clamped between the retaining ring and the mounting base.

[0012] Preferably, the transmitter head further includes a second baffle, and a plurality of fifth through holes are provided on the bottom wall of the receiving cylinder, and the second baffle is placed on the inner side of the bottom wall to cover the fifth through holes.

[0013] Preferably, the detachable connection is a threaded connection or a snap-fit ​​connection.

[0014] Preferably, the firing device is provided with a first thread, the firing head is provided with a fifth thread, the outer wall of the connector is provided with a second thread and a third thread, the inner wall is provided with a fourth thread, and the connector is also coaxially provided with a third through hole. The first thread is connected to the third thread, the firing head is connected to the connector through the second thread, the second thread is connected to the fifth thread, and the fourth thread is connected to the gas cylinder connection unit.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1) The quick-change net gun head includes a gas cylinder connection unit, a connector, and a firing head. The gas cylinder connection unit and the firing head are detachably connected to the connector. By integrating the firing head and the gas cylinder together, it is designed as a disposable consumable unit, making it simple and quick to replace the gas cylinder and the firing head. It can be used and replaced immediately. With the firing device, there is no need for complicated disassembly and resetting steps. Through the modular split design, the quick-change net gun head can be replaced as a whole after firing or during maintenance, or the gas cylinder connection unit or the firing head can be replaced separately without disassembly and reassembly. The response speed is fast, especially in emergency situations. The ability to quickly replace consumables is crucial to reduce preparation time. It enables quick preparation in emergency situations, significantly improves the convenience of operation and the efficiency of continuous use, reduces the cumbersomeness and danger in the operation process, and can be selectively recycled or discarded, saving costs.

[0017] 2) The pneumatic design makes it safer and more reliable, with less recoil and noise. It is not affected by expired or damp materials causing misfires or gunpowder debris, and has good concealment and stability, making it more covert and efficient in missions. It has good environmental adaptability and can work stably in various environments. It is also small in size and easy to carry. Furthermore, the high-pressure gas generated by the baffle plate ensures high stability and can guarantee long firing distances. In addition, there is no need to release the high-pressure gas before operation, avoiding depressurization of the device and fatigue of the sealing parts, which would affect the stability and reliability of operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the quick-change mesh gun head of this utility model;

[0019] Figure 2 This is a top view of the quick-change mesh gun head of this utility model;

[0020] Figure 3 This is a cross-sectional view (CC) of the quick-change mesh gun head of this utility model;

[0021] Figure 4 This is a schematic diagram of the quick-change mesh gun head of the present invention with the first baffle removed;

[0022] Figure 5 This is a schematic diagram of the connector structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the second limiting seat of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the pressure cap of this utility model;

[0025] Figure 8 This is a first-view structural diagram of the mounting base of this utility model;

[0026] Figure 9 This is a second-view structural diagram of the mounting base of this utility model;

[0027] Figure 10 This utility model Figure 8 The main view;

[0028] Figure 11 This is a sectional view (DD) of the mounting base of this utility model;

[0029] Figure 12 This is a schematic diagram of the assembly of the quick-change net gun head and firing device of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Firing device; 2. Quick-change net gun head; 21. Gas cylinder connection unit; 22. Connector; 23. Launching head; 211. Gas cylinder fixing seat; 212. Gas cylinder; 213. Second limiting seat; 214. Pressure cap; 215. Baffle; 213a. Second limiting platform; 213b. First through hole; 213c. Second sealing groove; 214a. Second through hole; 214b. Second annular boss; 22a 22b, Third thread; 22c, Third through hole; 22d, Fourth thread; 231, Mounting base; 232, Snap ring; 233, First baffle; 234, Second baffle; 235, Hammer head; 236, Mesh hammer; 231a, Connecting cylinder; 231b, Flared mouth; 231c, Receiving cylinder; 231d, Fourth through hole; 231e, Fifth thread; 231f, Fifth through hole; 231g, Slot. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application.

[0033] like Figures 1-12As shown, a quick-change net gun head is applied to a firing device 1. The quick-change net gun head is detachably connected to the firing device 1 and includes a gas cylinder connection unit 21, a connector 22, and a firing head 23. Both the gas cylinder connection unit 21 and the firing head 23 are detachably connected to the connector 22. The gas cylinder connection unit 21 is also used to install a gas cylinder 212 and to enable the firing head 23 to launch a capture net when the firing device 1 punctures the gas cylinder 212.

[0034] like Figure 12 As shown, the quick-change net gun head 2 is detachably connected to the firing device 1, such as by a threaded connection or a snap-fit. The quick-change net gun head 2 includes a gas cylinder connection unit 21, a connector 22, and a firing head 23. Both the gas cylinder connection unit 21 and the firing head 23 are detachably connected to the connector 22, such as by a threaded connection or a snap-fit. Preferably, the firing device 1 is threadedly connected to the gas cylinder connection unit 21. The gas cylinder 212 can be a carbon dioxide cylinder, etc. The firing device 1 can be any firing structure in the prior art, such as including a firing pin, or a self-designed firing structure. After the quick-change net gun head 2 is connected to the firing device 1, when the firing device 1 fires, it punctures the gas cylinder 212. Because the quick-change net gun head 2 and the firing device 1 are sealed together, the gas inside the gas cylinder 212 is instantly released to generate high-pressure gas, thereby enabling the firing head 23 to fire the capture net. By adopting a modular split design, the entire quick-change net gun head 2 can be quickly replaced after launch or during maintenance, or the gas cylinder connection unit 21 or the launch head 23 can be replaced separately, without the need to disassemble and reassemble or wait for the launch head (such as the capture net) to be launched and then retracted. This enables rapid replacement and fast response.

[0035] In one embodiment, the gas cylinder connection unit 21 includes a gas cylinder fixing seat 211 and a second limiting seat 213 arranged coaxially. The gas cylinder 212 is built into the gas cylinder fixing seat 211 and its two ends are axially moved and limited by the gas cylinder fixing seat 211 and the second limiting seat 213 respectively. The second limiting seat 213 is clamped and fixed by the connection of the connector 22 to the gas cylinder fixing seat 211.

[0036] The gas cylinder 212 is built into the gas cylinder fixing seat 211 and its two ends are axially limited by the gas cylinder fixing seat 211 and the second limiting seat 213 respectively. By leaving a small space for the gas cylinder 212 to slide axially, the gas cylinder 212 is affected by the reaction force when the gas is released, so that the gas cylinder 212 automatically moves away from the firing device 1. The purpose is to prevent the firing device 1 from getting stuck in the gas outlet of the gas cylinder 212 and blocking it, so that the gas in the gas cylinder 212 cannot be released quickly.

[0037] In one embodiment, the gas cylinder connection unit 21 further includes a pressure cap 214 and a baffle 215 arranged coaxially. The second limiting seat 213, the pressure cap 214 and the baffle 215 are arranged sequentially along the side away from the gas cylinder fixing seat 211 and are clamped and fixed by the connection of the connector 22 to the gas cylinder fixing seat 211. The baffle 215 is broken by the airflow generated when the firing device 1 punctures the gas cylinder 212.

[0038] The connector 22 can be used to abut and limit the pressure cap 214, thereby fixing the entire gas cylinder connection unit 21 to the firing device 1. The baffle 215 is preferably a metal sheet, such as a copper sheet. When the firing device 1 punctures the gas cylinder 212, the gas inside the gas cylinder 212 is released instantly, generating high-pressure gas. At this time, the copper sheet is at its weakest point, and the high-pressure gas will cause the copper sheet to explode, providing high-pressure gas to the firing head 23, thereby launching the capture net in the firing head 23.

[0039] In one embodiment, the second limiting seat 213 is provided with a first through hole 213b and a plurality of circumferentially distributed second limiting platforms 213a. The second limiting platforms 213a are used to abut and limit the gas cylinder 212. The pressure cap 214 is provided with a second through hole 214a coaxially. The first through hole 213b and the second through hole 214a are coaxially arranged.

[0040] In one embodiment, the second limiting seat 213 is also coaxially provided with a second sealing groove 213c, and the pressure cover 214 is coaxially provided with a second annular boss 214b. The second sealing groove 213c and the second annular boss 214b cooperate to clamp the baffle 215.

[0041] The second sealing groove 213c of the second limiting seat 213 cooperates with the second annular boss 214b of the pressure cover 214 to limit the position, and a baffle 215 is provided. The baffle 215 is located between the second limiting seat 213 and the pressure cover 214 and is clamped by the second sealing groove 213c and the second annular boss 214b to ensure air pressure and improve sealing performance. When the baffle 215 bursts, the first through hole 213b and the second through hole 214a are connected to realize airflow conduction.

[0042] In one embodiment, the transmitter head 23 includes a mounting base 231, which includes a connecting cylinder 231a, a flared end 231b, and a receiving cylinder 231c. The connecting cylinder 231a and the receiving cylinder 231c are coaxially arranged and have a circumferential gap. The flared end 231b is connected to both the connecting cylinder 231a and the receiving cylinder 231c at the end away from the gas cylinder 212, with the larger end facing outward. The flared end 231b also has several openings that are inclined relative to the axis and have a circumferential gap. The fourth through hole 231d and the receiving cylinder 231c are used to hold the net body of the capture net. The capture net also includes several hammers 235 and several net hammers 236. The net hammers 236 are blocked in the fourth through hole 231d and are provided with a sixth through hole. The hammers 235 are blocked in the sixth through hole of the net hammers 236 on the side near the gas cylinder 212. Each traction line on the net body of the capture net passes through the sixth through hole of the net hammer 236 and is connected to the hammer 235.

[0043] The mounting base 231 and the connector 22 are connected by threads. The capture net has several net hammers 236 and hammer heads 235 (each correspondingly set in a fourth through hole 231d evenly distributed on the horn mouth 231b). Each traction line on the capture net body is passed through the sixth through hole of the net hammer 236 and connected to the hammer head 235. The net hammers 236 and hammer heads 235 are then placed together into the fourth through hole 231d, so that the net hammers 236 and hammer heads 235 are evenly distributed and connected to the periphery of the capture net. During launch, the gas pushes the net hammers 236 out. The number and tilt angle of the fourth through holes 231d can be set according to the size of the net, so that nets of different specifications can fully open within a specified distance during launch.

[0044] In one embodiment, the transmitter head 23 further includes a retaining ring 232 and a first baffle 233. The end of the mounting base 231 away from the gas cylinder 212 is detachably connected to the retaining ring 232, and the first baffle 233 is clamped between the retaining ring 232 and the mounting base 231.

[0045] The mounting base 231 and the retaining ring 232 are detachably connected. If the connection is a snap-fit, the mounting base 231 has several circumferentially distributed slots 231g, and the retaining ring 232 has several circumferentially distributed buckles that correspond one-to-one with the slots 231g. It is easy to understand that the detachable connection between the mounting base 231 and the retaining ring 232 can also be a threaded connection. The first baffle 233 is clamped between the retaining ring 232 and the mounting base 231, and can be used to prevent the built-in net hammer 236, hammer head 235, and capture net from falling out or being damaged.

[0046] In one embodiment, the transmitter 23 further includes a second baffle 234, and a plurality of fifth through holes 231f are provided on the bottom wall of the accommodating cylinder 231c, and the second baffle 234 is placed on the inner side of the bottom wall to cover the fifth through holes 231f.

[0047] Before placing the capture net in the accommodating cylinder 231c, a second baffle 234 needs to be placed before the capture net is put in. This allows the gas to push the capture net on the second baffle 234 outward through the fifth through hole 231f during launch, which is beneficial for the capture net to open.

[0048] In one embodiment, the detachable connection is a threaded connection or a snap-fit ​​connection. It will be readily understood that other methods well known to those skilled in the art can also be used to achieve the detachable connection.

[0049] In one embodiment, the firing device 1 is provided with a first thread 131, the firing head 23 is provided with a fifth thread 231e, the outer wall of the connector 22 is provided with a second thread 22a and a third thread 22b, the inner wall is provided with a fourth thread 22d, and the connector 22 is also coaxially provided with a third through hole 22c. The first thread 131 is connected to the third thread 22b, the firing head 23 is connected to the connector 22 through the second thread 22a, the second thread 22a is connected to the fifth thread 231e, and the fourth thread 22d is connected to the gas cylinder connection unit 21.

[0050] The modular design of each component unit is achieved through the conversion of various threads, which facilitates quick disassembly, replacement, or maintenance. For example, the gas cylinder connection unit 21 is built into the firing device 1 and is fixed by screwing the connector 22. The firing head 23 is located outside the firing device 1, and gas can flow through the third through hole 22c to facilitate the smooth firing of the firing head 23. The fifth thread 231e is provided on the inner wall of the connecting cylinder 231a for connection with the connector 22.

[0051] Working principle:

[0052] After the quick-change net gun head 2 is sealed and connected to the firing device 1, the firing device 1 performs a firing action to puncture the gas cylinder 212 inside the gas cylinder connection unit 21. The gas cylinder 212 is installed inside the gas cylinder fixing seat 211, which is installed inside the firing device 1. The gas outlet end of the gas cylinder 212 is limited by the gas cylinder fixing seat 211, and the bottom end of the gas cylinder 212 is limited by the second limiting seat 213. When releasing gas, the reaction force will cause the gas cylinder 212 to automatically move away from the firing device. Device 1 ensures the rapid release of gas from cylinder 212, creating a high-pressure, low-temperature environment. A baffle 215 is sandwiched between the second limiting seat 213 and the pressure cap 214. Finally, the cylinder fixing seat 211 and the connector 22, connected by threads, tightly press the baffle 215 to form a seal. When the gas pressure reaches a predetermined value, the baffle 215 ruptures, instantly releasing high-pressure gas, which flows through the third through hole 22c of the connector 22 to the launch head 23, completing the launch of the capture net by the launch head 23. After firing, the quick-change net gun head 2 can be quickly replaced on the firing device 1 to prepare for the next firing.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely specific and detailed examples of the embodiments described in this application, and should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A quick-change net gun head, applied to a firing device (1), characterized in that: The quick-change net gun head is detachably connected to the firing device (1) and includes a gas cylinder connection unit (21), a connector (22) and a firing head (23). The gas cylinder connection unit (21) and the firing head (23) are both detachably connected to the connector (22). The gas cylinder connection unit (21) is also used to install a gas cylinder (212) and to enable the firing head (23) to launch the capture net when the firing device (1) punctures the gas cylinder (212).

2. The quick-change mesh gun head as described in claim 1, characterized in that: The gas cylinder connection unit (21) includes a gas cylinder fixing seat (211) and a second limiting seat (213) arranged coaxially. The gas cylinder (212) is built into the gas cylinder fixing seat (211) and its two ends are axially limited by the gas cylinder fixing seat (211) and the second limiting seat (213) respectively. The second limiting seat (213) is clamped and fixed by the connection of the connector (22) to the gas cylinder fixing seat (211).

3. The quick-change mesh gun head as described in claim 2, characterized in that: The gas cylinder connection unit (21) further includes a pressure cap (214) and a baffle (215) arranged coaxially. The second limiting seat (213), the pressure cap (214) and the baffle (215) are arranged in sequence along the side away from the gas cylinder fixing seat (211) and clamped and fixed by the connection of the connector (22) to the gas cylinder fixing seat (211). The baffle (215) is broken by the airflow generated when the firing device (1) punctures the gas cylinder (212).

4. The quick-change mesh gun head as described in claim 3, characterized in that: The second limiting seat (213) is provided with a first through hole (213b) and a plurality of circumferentially distributed second limiting platforms (213a). The second limiting platforms (213a) are used to abut and limit the gas cylinder (212). The pressure cap (214) is provided with a second through hole (214a) on the same axis. The first through hole (213b) and the second through hole (214a) are coaxially arranged.

5. The quick-change mesh gun head as described in claim 3, characterized in that: The second limiting seat (213) is also coaxially provided with a second sealing groove (213c), and the pressure cover (214) is coaxially provided with a second annular boss (214b). The second sealing groove (213c) and the second annular boss (214b) cooperate to clamp the baffle (215).

6. The quick-change mesh gun head as described in claim 1, characterized in that: The transmitter head (23) includes a mounting base (231), which includes a connecting cylinder (231a), a flared end (231b), and a receiving cylinder (231c). The connecting cylinder (231a) and the receiving cylinder (231c) are coaxially arranged and have a circumferential gap. The flared end (231b) is connected to both the connecting cylinder (231a) and the receiving cylinder (231c) at the end away from the gas cylinder (212) with the larger end facing outward. The flared end (231b) also has several openings that are inclined relative to the axis and communicate with the circumferential gap. The four-way hole (231d) and the receiving cylinder (231c) are used to place the net body of the capture net. The capture net also includes a number of hammers (235) and a number of net hammers (236). Each net hammer (236) is blocked in the fourth through hole (231d) and has a sixth through hole. Each hammer (235) is blocked in the sixth through hole of the net hammer (236) on the side near the gas cylinder (212). Each traction line on the net body of the capture net passes through the sixth through hole of the net hammer (236) and is connected to the hammer (235).

7. The quick-change mesh gun head as described in claim 6, characterized in that: The transmitter head (23) also includes a retaining ring (232) and a first baffle (233). The end of the mounting base (231) away from the gas cylinder (212) is detachably connected to the retaining ring (232). The first baffle (233) is clamped between the retaining ring (232) and the mounting base (231).

8. The quick-change mesh gun head as described in claim 6, characterized in that: The transmitter head (23) also includes a second baffle (234). The bottom wall of the accommodating cylinder (231c) is provided with a plurality of fifth through holes (231f) and the second baffle (234) is placed on the inner side of the bottom wall to cover the fifth through holes (231f).

9. The quick-change mesh gun head as described in any one of claims 1-8, characterized in that: The detachable connection is either a threaded connection or a snap-fit ​​connection.

10. The quick-change mesh gun head as described in claim 9, characterized in that: The firing device (1) is provided with a first thread (131), the firing head (23) is provided with a fifth thread (231e), the outer wall of the connector (22) is provided with a second thread (22a) and a third thread (22b), the inner wall is provided with a fourth thread (22d), and the connector (22) is also coaxially provided with a third through hole (22c). The first thread (131) is connected to the third thread (22b), the second thread (22a) is connected to the fifth thread (231e), and the fourth thread (22d) is connected to the gas cylinder connection unit (21).

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