CN112378290A

CN112378290A - Net bomb catching device

Info

Publication number: CN112378290A
Application number: CN202011259476.9A
Authority: CN
Inventors: 王红雨; 吴昌学; 王迎春; 乔文超; 马靖煊; 韩佼志
Original assignee: Shanghai Jiaotong University
Current assignee: Shanghai Jiaotong University
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-02-19
Anticipated expiration: 2040-11-12
Also published as: CN112378290B

Abstract

The invention provides a net bomb catching device, comprising: the net bomb comprises a net structure with a traction heavy hammer at the edge; the net bullet launcher comprises a net bin and a pneumatic power device; the net bin is of a round table-shaped structure with a hollow accommodating chamber; the inner wall of the hollow accommodating chamber is axially provided with a pipeline for accommodating the traction heavy hammer and providing a launching channel for the traction heavy hammer, and the pipeline enables the large end part and the small end part of the hollow accommodating chamber to be communicated; the number of the pipelines is matched with that of the traction heavy hammers; the big end part of the hollow accommodating chamber is provided with a fixing device for fixing the traction heavy hammer and the reticular structure; the gas power device can store combustible gas and can generate high-pressure gas through expansion after the combustible gas is combusted; the gas outlet of the gas power device is communicated with one end of the pipeline, high-pressure gas is injected into the pipeline through the gas power device to push the traction heavy hammer to move outwards along the channel, and the net bomb is emitted to a specified position from the large end part of the hollow accommodating chamber. The invention has the advantages of safer and more reliable launching principle, simple structure of the whole device and light weight.

Description

Net bomb catching device

Technical Field

The invention relates to the field of security protection, in particular to a net bomb capturing device.

Background

In the security field, when a public police catches a criminal, in the process of pursuing, particularly in the process of escaping from a gangster, the public police is not convenient for driving a gun but cannot allow the gangster to escape. In addition, the scoundrel cannot close up and the scoundrel may carry a sharp weapon or even a fatal weapon such as a gun. If the police arrest is happened, the life safety of the police is possibly endangered. Therefore, a non-lethal weapon device capable of realizing non-contact capture in a certain range is needed for equipping police force.

Currently, many researches and inventions aiming at the requirement have been made, and the main equipment is a net-bullet type launching device. Some of these devices take the form of high pressure gas bombs that eject the net by compressed gas. The apparatus generally includes a launch net head for loading the net; the tail part is provided with a gas cylinder for containing high-pressure gas, and the middle part is provided with a connecting piece for connecting the head part and the tail part. This device basically meets the requirements with regard to emission effect, but at the same time has a number of disadvantages. Among them, the most serious is the low safety factor of the high-pressure gas cylinder itself. The device is in a high-pressure state when the pursuit task is not executed, and is easy to cause other injuries. In addition, the device needs to replace the whole high-pressure gas cylinder after being used, and only one gas cylinder can be shot, so that a user needs to carry a plurality of gas cylinders in the practical application process to ensure that no other situations occur.

In addition, the powder can be used. The device is basically the same as the former, but slightly changed in the tail bin. The weight of the device can be reduced by adopting the form of gunpowder, but the gunpowder is not suitable for the general security field. Firstly, the limitation of gunpowder management reduces the maneuverability of manufacturing corresponding gunpowder equipment; besides, many factors such as powder regulation and limitation need to be considered in the production process, so that the application of general security equipment is difficult.

For example: the Chinese patent with the application number of CN201920890923.7 found by retrieval discloses an externally-hung net bomb catcher based on a 92G type pistol, which comprises a net bomb and a net bomb launcher; the net bomb comprises a catching net, rubber bombs and connecting ropes; the net bullet emitter comprises a conical tube body and a gun joint arranged at the small end of the conical tube body, wherein a net loading cavity is arranged in the middle of the conical tube body, and a plurality of air passages arranged along the circumferential direction of the conical tube body are also arranged on the conical tube body; the gun connector comprises a connector body, a gun head jack arranged on the connector body, an airflow discharge hole arranged at the front end of the gun connector body, and a locking clamp inserted at the bottom of the connector body. However, the above patents have the following disadvantages: firstly, structurally, although the air passage is prolonged, the traction object rubber bomb is arranged at the air passage opening, the length effect of the air passage cannot be utilized to the maximum extent by the traction object rubber bomb, and therefore higher initial speed cannot be emitted; secondly, the connection structure has unstable risk, and because the connection with the 92-type pistol is directly selected, special treatment is not carried out on the interface of the net bin and the pistol, and the net bin and the pistol are fixed only by a single-side latch, so that the problems of certain damage and infirm are solved. In addition, the device utilizes the airflow generated by the empty-packed cartridge to realize the launching, the principle of the device is similar to that of a gunpowder type launching device, and the empty-packed cartridge has corresponding dosage standards, so that the dosage of the gunpowder is difficult to be adjusted individually, and the launching at a specific distance is difficult to achieve.

Disclosure of Invention

In view of the defects in the prior art, the invention aims to provide a net bomb capturing device.

The invention provides a net bomb catching device, comprising:

the net bomb comprises a net structure, the edge of which is provided with a traction heavy hammer;

the net bullet launcher comprises a net bin and a pneumatic power device;

the net bin is of a circular truncated cone-shaped structure with a hollow accommodating chamber, the hollow accommodating chamber is used for accommodating the net-shaped structure, and the large end part of the hollow accommodating chamber is open; a pipeline for accommodating the traction heavy hammer and providing a launching channel for the traction heavy hammer is axially arranged on the inner wall of the hollow accommodating chamber, and the pipeline enables the large end part and the small end part of the hollow accommodating chamber to be communicated; the number of the pipelines is matched with that of the traction heavy hammers; the big end part of the hollow accommodating chamber is provided with a fixing device for fixing the traction heavy hammer and the reticular structure;

the gas power device can store combustible gas and can generate high-pressure gas through expansion after the combustible gas is combusted; the pneumatic power device is connected with the small end part of the hollow accommodating cavity, the gas outlet of the pneumatic power device is communicated with one end of the pipeline, high-pressure gas is injected into the pipeline through the pneumatic power device, the traction heavy hammer is pushed to move outwards along the channel, and therefore the net bullet is emitted to a designated position from the large end part of the hollow accommodating cavity.

Preferably, the gas power plant comprises:

a gas silo for storing a combustible gas; one end of the air bin is an open end, and a clamping groove used for clamping the circular truncated cone-shaped structure is formed in the end part of the open end;

the charging connector is communicated with the gas bin and can charge combustible gas into the gas bin, so that the quantity of the charged combustible gas is controlled;

and the ignition device is communicated with the gas cabin and can enable the combustible gas in the gas cabin to be combusted.

Preferably, the clamping groove is a circumferential groove formed by the outward circumferential depression of the outer wall of the gas bin, and the outer diameter of the circumferential groove is larger than that of the gas bin.

Preferably, the small end part of the hollow accommodating cavity is provided with a buckle matched with the clamping groove of the air bin, and the circular truncated cone-shaped structure is fixed with the air bin through the clamping groove and the buckle in a clamping mode.

Preferably, the buckle comprises:

the cylindrical shell is formed by extending the outer wall of the small end part of the hollow accommodating chamber along the axial direction; and a circumferential bulge protruding outwards is arranged along the circumferential direction of the end part of the columnar shell, and the circumferential bulge is matched with the circumferential groove.

Preferably, a supporting part is arranged in the pipeline, one end of the supporting part props against the traction heavy hammer, the other end of the supporting part props against the fixing device, so that the heavy hammer is fixed at one end of the pipeline, and the end is positioned close to the small end part of the hollow accommodating chamber.

Preferably, the support member is a hollow rod-shaped member.

Preferably, the fixing means comprises:

the clamping strip is formed by a bulge on the outer wall of the large end part, and the bulges are uniformly distributed along the circumferential direction of the outer wall;

the baffle piece is arranged at the large end part of the hollow accommodating chamber, and the end surface of the large end part is closed through the baffle piece;

the end cover is sleeved on the outer edge of the large end part of the hollow accommodating cavity and is a circular ring-shaped part, and a socket slot matched with the clamping strip is formed in the inner wall of the circular ring-shaped part along the circumferential direction and used for being inserted with the clamping strip; the end face of the end cover is provided with a lug extending along the axis direction, and the lug is used for limiting the axial movement of the blocking piece.

Preferably, the number of the traction weight is eight, and the eight traction weight are uniformly distributed on the outer edge of the mesh structure along the circumferential direction;

preferably, the number of the pipelines is eight, and the eight pipelines are uniformly distributed along the circumferential direction of the inner wall of the hollow accommodating chamber.

Preferably, the mesh structure is circular or quadrangular.

Compared with the prior art, the invention has at least one of the following beneficial effects:

according to the device, the launching structure for launching the net bomb is improved, and the gas power device adopts combustible gas to burn and release energy to push the net bomb to be launched;

compared with the traditional net bullet reflection principle, the driving (launching) principle is safer and more reliable, and the whole device has simple structure, light weight and low processing technology requirement. The device is used for equipping policemen troops, the capturing capability is improved, and the life safety of policemen is protected.

According to the device, the pipeline is arranged, the traction heavy hammer is fixed at the bottom of the pipeline, the pipeline is arranged at a certain length, and the pipeline structure is adopted to prolong the air passage, so that the stress time of the traction heavy hammer is prolonged, and the initial speed of the traction heavy hammer when the traction heavy hammer leaves the launching device is increased.

According to the device, the gas power device adopts a structural form of filling combustible gas, so that the corresponding relation between the emission distance and the gas capacity can be measured through experiments and the like, the gas consumption is correspondingly adjusted, and the catching requirement is met; it has great adjustability and can be used repeatedly.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a cross-sectional view of a net-bullet trap in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of a net bullet according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of the launch end of the net-bullet trap in accordance with a preferred embodiment of the present invention;

fig. 4 is a schematic structural view of an end cap of the net bullet catching device according to a preferred embodiment of the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 1;

FIG. 6 is a partial schematic view of an end cap according to a preferred embodiment of the invention;

the scores in the figure are indicated as: the device comprises a round table-shaped structure 1, a net bomb 2, an air chamber 3, a fixing device 4, a supporting part 5, a traction heavy hammer 21, a net-shaped structure 22, an inflating nozzle 31, an ignition device 32, a clamping groove 33, a buckle 11, a pipeline 12, an end cover 41, a clamping strip 42, a baffle 43, a step 401, a socket 402 and a lug 403.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Referring to fig. 1, a net bullet catching device according to a preferred embodiment of the present invention includes a net bullet 2 and a net bullet launcher; wherein the content of the first and second substances,

referring to fig. 2, the net bomb 2 includes a net structure 22 with a traction weight 21 at the edge; the traction weight 21 can be connected to the net structure 22 through a line. When the net bomb 2 is launched, the net structure 22 can net the entire body of the gangster, so that the gangster cannot move in a short time, thereby capturing the gangster.

The net bullet launcher comprises a net bin and a pneumatic power device;

the net cabin is a circular truncated cone-shaped structure 1 with a hollow accommodating chamber. As a preferred mode, the net cabin is a thin-wall type round table-shaped structure 1. The hollow accommodating chamber of the round table-shaped structure 1 is used for storing the reticular structure 22, and the large end part of the hollow accommodating chamber is open; the inner wall of the hollow accommodating chamber is provided with a pipeline 12 which is used for accommodating the traction heavy hammer 21 and providing a launching channel for the traction heavy hammer along the axial direction, and the pipeline 12 enables the large end part and the small end part of the hollow accommodating chamber to be communicated, namely two ends of the pipeline 12 can be communicated with the external environment; the number of pipes 12 matches the number of traction weights 21. The pipe 12 has a certain length, and the length is greater than the length of the traction weight 21; the big end part of the hollow accommodating chamber is provided with a fixing device 4 for limiting the movement of the traction heavy hammer 21, so that the traction heavy hammer 21 is fixed in the pipeline 12; in the implementation process, a plurality of traction weights 21 are respectively placed into the corresponding pipes 12 and installed at one end of the pipe 12 close to the small end of the hollow accommodating chamber, the net-shaped structure 22 except the traction weights 21 is placed into the hollow accommodating chamber, and then the traction weights 21 are fixed in the pipe 12 by the fixing device 4.

The gas power device can store combustible gas and can generate high-pressure gas through expansion after the combustible gas is combusted; the gas power device is connected with the small end part of the hollow accommodating cavity, the gas outlet of the gas power device is communicated with one end of the pipeline 12, high-pressure gas is injected into the pipeline 12 through the gas power device, the traction heavy hammer 21 is pushed to move outwards along the channel, and therefore the net bomb 2 is emitted to a specified position from the large end part (the large end part is an emitting end) of the hollow accommodating cavity.

The working principle of the net bomb catching device is greatly different from that of the traditional net bomb launching device, and the device in the embodiment mainly releases energy based on the combustion of combustible gas (such as hydrocarbon) to push the net bomb 2 to launch; when the gas power device is filled with combustible gas (for example, butane) with a proper concentration, after the combustible gas is ignited, the combustible gas is rapidly combusted, and the volume of the combustible gas rapidly expands to generate high-pressure gas, and the high-pressure gas pushes the traction weight 21 in the pipeline 12, so that the traction weight 21 is forced to generate a great acceleration to fly out. And the net bullet catching device makes the length of the pipeline 12 inconsistent with the length of the heavy hammer, thereby prolonging the length of the pipeline 12. For this reason, the traction weight 21 will be forced continuously for a while when the traction weight 21 is not completely separated from the launching tube 12. Therefore, the traction weight 21 is continuously stressed; in contrast, the initial velocity of the traction weight 21 when leaving the device is much higher than the initial velocity of the structural design in which the traction weight 21 is flush with the end face, so that the launching effect is much better.

In other partially preferred embodiments, as shown with reference to fig. 1, the gas-powered device comprises a gas chamber 3, a charging nozzle 31 and an ignition device 32; the gas bin 3 is used for storing combustible gas; as a preferable mode, the gas bin 3 may adopt a gas storage cylinder structure. One end of the air bin 3 is an open end, and the end part of the open end is provided with a clamping groove 33 for clamping the round platform-shaped structure 1. The other end of the gas bin 3 is provided with two threaded holes which are respectively used for connection; a small hole is formed in the center of the small end face of the hollow accommodating chamber, and the air bin 3 and the hollow accommodating chamber can be communicated with the charging connector 31 and the electronic ignition valve through the small hole; when the net bomb 2 is launched outwards, the boosting function can be achieved.

The charging connector 31 is communicated with the air bin 3 and is an air inlet of the air bin 3, and combustible gas can be filled into the air bin 3. By arranging the charging nozzle 31, the amount of the charged combustible gas can be well controlled, so that the gas bin 3 can have good combustion and energy release, and the net bomb 2 can be ensured to be launched ideally enough. The charging nozzle 31 is a commercially available component.

The ignition device 32 communicates with the gas box 3, and can burn the combustible gas in the gas box 3. As a preferred mode, the ignition device 32 may be an electronic ignition device. The electronic ignition device adopts a common inflatable electronic lighter on the market, or a miniature electronic spark plug is arranged at the tail part of the gas chamber 3.

In other preferred embodiments, referring to fig. 1, the locking groove 33 is a circumferential groove formed by the outer wall of the air chamber 3 being recessed outward in the circumferential direction, and the outer diameter of the circumferential groove is larger than the outer diameter of the air chamber 3.

In other preferred embodiments, referring to fig. 1, the small end of the hollow accommodating chamber is provided with a buckle 11 which is matched with a clamping groove 33 of the air chamber 3, and the truncated cone-shaped structure 1 and the air chamber 3 are fixed by clamping the clamping groove 33 and the buckle 11.

In other partially preferred embodiments, the clasp comprises a cylindrical housing. The columnar shell is formed by extending the outer wall of the small end part of the hollow accommodating chamber along the axial direction; and a circumferential bulge protruding outwards is arranged along the circumferential direction of the end part of the columnar shell, and the circumferential bulge is matched with the circumferential groove.

In other partially preferred embodiments, as shown in fig. 1, a support member 5 is provided within the conduit 12. The support member 5 supports the traction weight 21 to prevent the weight from falling. One end of the support member 5 is abutted against the traction weight 21, and the other end of the support member 5 is abutted against the fixing device 4, so that the weight is fixed at one end of the pipeline 12, and the end is located near the small end part of the hollow accommodating chamber. Only because the stress is not large, the supporting part 5 only needs to adopt a common strip-shaped part; preferably, the support member 5 is a hollow rod-shaped member. Or a hollow strip-shaped object such as a tubular part is adopted, so that the overall weight is further reduced.

In other partially preferred embodiments, the fixing device 4 comprises a clamping strip 42, a blocking piece 43 and an end cover 41; referring to fig. 3, a plurality of clamping strips 42 are uniformly distributed on the outer wall of the large end of the hollow accommodating chamber along the circumferential direction. The clip strip 42 is used to secure the end cap 41. The clamping strip 42 is formed by a bulge on the outer wall of the large end part, and the bulges are uniformly distributed along the circumferential direction of the outer wall; preferably, the number of strips 42 is four.

The baffle 43 is disposed at the large end of the hollow accommodating chamber. Covering the large end part of the hollow accommodating chamber with a baffle plate 43, and sealing the end surface of the large end part through the baffle plate 43; preferably, the baffle 43 is a circular thin sheet-like member. The circular sheet-like member may be made of copper material.

As shown in fig. 4, 5 and 6, the end cap 41 is sleeved on the outer edge of the large end of the hollow accommodating chamber. The end cover 41 is a circular ring-shaped part, and a plurality of socket slots 402 matched with the clamping strips 42 are uniformly distributed on the inner wall of the circular ring-shaped part along the circumferential direction; a step structure 401 is formed on the inner wall of the annular part, a socket groove 402 matched with the clamping strip 42 is formed on one side of the step structure 401, the clamping strip 42 is inserted into the socket groove 402, the side face of the step structure 402 can abut against the clamping strip, the radial displacement of the clamping strip 42 is limited, and the end cover 41 is prevented from falling off when the net bomb catching device is placed upside down. The end face of the end cap 41 is provided with a projection extending in the axial direction, and the projection is used for limiting the axial movement of the blocking piece, so as to clamp the blocking piece 43, so that the hollow accommodating chamber is connected with the end cap 41 and the blocking piece 43.

In other preferred embodiments, the number of the traction weights 21 is eight, and the eight traction weights 21 are uniformly distributed on the outer edge of the net structure 22 along the circumferential direction.

The number of the pipes 12 is eight, and the eight pipes 12 are uniformly distributed along the circumferential direction of the inner wall of the hollow accommodating chamber, and the distribution can be seen in fig. 2.

In other partially preferred embodiments, the web 22 is circular or quadrilateral. In one embodiment, a 4m x 4m square mesh may be used.

The net-bullet trap of the above embodiment can be used by the following steps:

placing a net bomb: putting the eight heavy hammers into the corresponding pipelines 12 in order, then adding the suction pipe to prop against the eight heavy hammers, and putting the part of the net bomb 2 except the traction heavy hammer 21 into the middle part of the net bin; and (4) covering the copper sheet, and finally fixing the copper sheet and the net bin by using an end cover 41.

And (3) inflating: combustible gas is filled into the gas bin 3 through the charging connector 31 and then butane is filled into the gas bin.

Emission: the user is ready to do the first two steps (placing the net bomb 2 and inflating) before using, and only needs to install the switch for electronic ignition in the specific using process.

The net-bullet catching device described in the above embodiment can be processed in the following manner:

due to the simple structure, the processing is also operated and mass produced. The whole net bin part does not need to bear overlarge pressure, so that the net bin can be made of common plastic materials, and common processing technologies of plastics such as injection molding and compression molding can be realized. Meanwhile, the net bin part is provided with the flow pipeline 12, so that the blow molding form is ideal; the air bin 3 can be produced into an integral shape by injection molding, the connecting clamping groove 33 is obtained by turning, and the threaded hole in the air bin is obtained by drilling. The end cap 41 may also take the form of an injection moulding; the blocking piece 43 can be made of a commercially available material, such as a copper sheet, and the thickness of the copper sheet is only 0.1 mm. The supporting part 5 can be a common suction pipe after experimental verification. The copper sheet and the suction pipe are adopted to reduce the weight of the whole device.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims

1. A net-bullet trap device, comprising:

the net bullet launcher comprises a net bin and a pneumatic power device;

2. The net bomb capturing device of claim 1, wherein the pneumatic power device comprises:

3. The net bomb capturing device according to claim 2, wherein the clamping groove is a circumferential groove formed by an outer wall of the gas bin being recessed outwards in the circumferential direction, and the outer diameter of the circumferential groove is larger than that of the gas bin.

4. The net bomb capturing device as claimed in claim 3, wherein a buckle matched with the clamping groove of the gas bin is arranged at the small end of the hollow accommodating chamber, and the round table-shaped structure and the gas bin are fixed through clamping of the clamping groove and the buckle.

5. The net bomb capture device of claim 4, wherein the catch comprises:

6. The net bomb capturing device as claimed in claim 1, wherein a support member is disposed in the pipe, one end of the support member is against the traction weight, the other end of the support member is against the fixing device, so that the weight is fixed to one end of the pipe, and the end is near the small end of the hollow accommodating chamber.

7. The net bomb capturing device of claim 6, wherein the support member is a hollow rod-like member.

8. The net-bullet trap device according to any one of claims 1 to 7, wherein said fixing means comprises:

9. The net-bullet trap device according to any one of claims 1 to 7,

the number of the traction weights is eight, and the eight traction weights are uniformly distributed on the outer edge of the mesh structure along the circumferential direction;

the number of said ducts is eight, and said eight ducts are circumferentially uniformly distributed along the inner wall of said hollow containment chamber.

10. The net-bullet trap device of any one of claims 1 to 7 wherein said net-like structure is circular or quadrilateral.