shield

Abstract

The utility model discloses a shield which comprises a shield plate, a handle and a length-adjustable forearm strap arranged on the back side of the shield plate, air bag modules arranged on the left and right sides of the shield plate respectively, an air bag and an air bag box, a box body fixed on the shield plate and a box cover hinged to the box body, the air bag being located in the air bag box in an uninflated state and the box body being fixedly connected with the air bag, an inflation module for inflating the air bag to make the air bag pop out of the air bag box, and a deflation module for deflating the air bag. The shield can not only provide passive defense function, but also release the air bag actively according to the situation, and the air bag in the inflated state and the shield plate jointly constitute a ring-shaped limiting structure to hold the illegal personnel and restrict their movement, so that the illegal personnel can be disciplined quickly, and the law enforcement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of security equipment technology, and in particular to a shield. Background Technology

[0002] While existing shields offer good passive defense, they lack the ability to actively restrain lawbreakers. Since passive defense cannot quickly stop the illegal activities of troublemakers, it is necessary to improve existing shields. Utility Model Content

[0003] In view of this, the present invention provides a shield to solve the technical problem that existing shields cannot actively restrain lawbreakers and troublemakers.

[0004] This utility model shield includes a shield plate, on the back side of which a handle and an adjustable forearm strap are provided. The shield also includes airbag modules respectively disposed on the left and right sides of the shield plate. Each airbag module includes an airbag and an airbag box. The airbag box includes a box body fixed to the shield plate and a box cover hinged to the box body. In the uninflated state, all airbags are located within the airbag box, and the box body is fixedly connected to the airbags. The shield also includes an inflation module for inflating the airbags to eject them from the airbag box and a deflation module for deflating the airbags. When the airbags on the left and right sides of the shield plate are ejected and fully inflated, they form a closed loop, which, together with the shield plate, constitutes a ring-shaped restraining structure.

[0005] Furthermore, the inflation module includes a container disposed within the airbag and located in the box body, guanidine nitrate or sodium bismuth substituent contained in the container, a gas filter disposed outside the container, a resistance heater disposed inside the container to heat the guanidine nitrate or sodium bismuth substituent, a power supply fixed on the back side of the shield plate, and a switch disposed on the handle. The container has holes for releasing gas, and the power supply, switch, and resistance heater are connected in series by wires to form a circuit.

[0006] Furthermore, the inflation module includes a high-pressure gas cylinder fixed on the back side of the shield, a solenoid valve disposed at the outlet of the high-pressure gas cylinder, an inflation tube connecting the solenoid valve and the airbag, a power supply fixed on the back side of the shield, and a switch disposed on the handle. The power supply, the switch, and the solenoid valve are connected in series via wires to form a series circuit.

[0007] Furthermore, the deflation module includes an exhaust pipe connecting the left and right airbags and an exhaust valve connected to the exhaust pipe.

[0008] Furthermore, the airbag is provided with Velcro, which is located on the mating surface of the airbag; when the left and right airbags are in the mating state, the Velcro on the two airbags are glued together.

[0009] Furthermore, a front buffer pad is provided on the front side of the shield plate, and a rear buffer pad is provided on the rear side of the shield plate.

[0010] Furthermore, an LED light group is also provided on the front side of the shield plate, and the LED light group is connected in series circuit.

[0011] The beneficial effects of this utility model are: 1. In addition to providing passive defense, this utility model shield can also actively release airbags as needed. The inflated airbags and the shield plate together form a ring-shaped restraining structure to hold the lawbreakers and restrict their movement, thereby accelerating the subjugation of lawbreakers and improving the efficiency of law enforcement.

[0012] 2. The shield of this utility model has an elastic airbag even when fully inflated, which can prevent injury to the restrained person; and the airbags pop out from the left and right sides to hug the other person, which can prevent the other person from being pushed over, thus improving the safety of the shield. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front side of the shield.

[0014] Figure 2 This is a schematic diagram of the first structural design for the rear side of the shield.

[0015] Figure 3 This is a schematic diagram of the second type of structure on the rear side of the shield.

[0016] Figure 4 for Figure 2 A schematic diagram of the structure of the central airbag module.

[0017] Figure 5 This is a schematic diagram of a cross-section of a shield.

[0018] Figure 6 A schematic diagram of an airbag being inflated to form a ring-shaped confinement structure. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-6As shown, in this embodiment, the shield includes a shield plate 1, and a handle 2 and an adjustable forearm strap 3 are provided on the back side of the shield plate. In this embodiment, the shield also includes airbag modules respectively disposed on the left and right sides of the shield plate. Each airbag module includes an airbag 4 and an airbag box 5. The airbag box 5 includes a box body 51 fixed to the shield plate and a box cover 52 hinged to the box body. In this embodiment, a magnetic buckle 53 is connected to the box cover 52. When the box cover is closed, the magnetic buckle is magnetically connected to the box body, ensuring the reliability of the box cover closure. Of course, in different embodiments, the magnetic buckle 53 can also be replaced by an elastic snap-fit ​​or a friction-based fastening method. The box body 51 can be fixed to the shield plate with screws. When the airbags are not inflated, they are all located in the airbag box, and the box body is fixedly connected to the airbags. In specific implementations, the box body and airbags can be fixed together with adhesive or with screws with sealing gaskets. The sealing gasket ensures that there will be no air leakage at the connection. In practice, the airbag 4 can be made of Kevlar fiber, giving the airbag good toughness and tear resistance.

[0021] The shield also includes an inflation module for inflating the airbags to eject them from the airbag box and a deflation module for deflating the airbags. When the airbags on the left and right sides of the shield are ejected and fully inflated, they form a closed-loop structure. The closed-loop airbags and the shield together constitute a ring-shaped restraint structure. In this embodiment, the airbags are L-shaped when fully inflated, and the two L-shaped airbags and the shield together form a rectangular ring-shaped restraint structure.

[0022] like Figure 2 As shown, in this embodiment, the inflation module includes a container 6 disposed within the airbag 4 and located in the housing, guanidine nitrate 7 or sodium bismuth substituent contained in the container, a gas filter 8 disposed outside the container, a resistance heater 9 disposed inside the container to heat the guanidine nitrate or sodium bismuth substituent, a power supply 10 fixed to the back side of the shield plate, and a switch 11 disposed on the handle 2. The container has holes for releasing gas, and the power supply, switch, and resistance heater are connected in series by wires to form a circuit. In a specific implementation, the filter 8 can be a filter made of steel fiber, and the combination of the container 6 and the filter 8 can be fixed by adhesive; the power supply 10 can be fixed to the shield plate by screws. During law enforcement, law enforcement officers can choose to release the airbag as needed. When it is necessary to release the airbag, the law enforcement officer presses the switch 11 to connect the circuit, the resistance heater 9 heats up, causing the guanidine nitrate or sodium bismuth substituent to decompose rapidly at high temperature, generating a large amount of gas, thereby inflating the airbag and pushing open the housing cover to pop it out. After the left and right airbags deploy, they merge together. The inflated airbags can stably maintain their shape and resist the struggle of lawbreakers, thus reliably trapping them in the ring-shaped restraint structure, which can quickly subdue lawbreakers.

[0023] Of course, in different embodiments, the inflation module may also take other forms. For example... Figure 3 As shown, the inflation module includes a high-pressure gas cylinder 12 fixed to the back side of the shield, a solenoid valve 13 located at the outlet of the high-pressure gas cylinder, an inflation pipe 14 connecting the solenoid valve and the airbag, a power supply 10 fixed to the back side of the shield, and a switch 11 located on the handle. The power supply, switch, and solenoid valve are connected in series via wires. In a specific implementation, the high-pressure gas cylinder 12 can be fixed to the shield using a clamp. In this embodiment, the inflation module inflates the airbag as follows: the law enforcement officer presses the switch 11 to connect the circuit, the solenoid valve 13 is energized and opens, the compressed gas in the high-pressure gas cylinder 12 enters the airbag 4 through the inflation pipe 14, the airbag inflates and pushes open the cover to form a ring-shaped restrictive structure.

[0024] In this embodiment, the deflation module includes an exhaust pipe 15 connecting the left and right airbags and an exhaust valve 16 connected to the exhaust pipe. Opening the exhaust valve 16 to deflate the airbags can alleviate the restriction on trapped lawbreakers or release them from the ring-shaped restraint structure.

[0025] As an improvement to the above embodiment, the airbag is provided with Velcro 17, which is located on the mating surface of the airbag; when the left and right airbags are in a mating state, the Velcro on the two airbags are bonded to each other. The adhesive force provided by the Velcro 17 can further improve the reliability of the ring-shaped restraint structure and better prevent illegal personnel from struggling to escape from the ring-shaped restraint structure.

[0026] As an improvement to the above embodiment, a front buffer pad 18 is provided on the front side of the shield plate, and a rear buffer pad 19 is provided on the rear side of the shield plate. When a lawbreaker rams the shield, the buffering effect of the front buffer pad 18 and the rear buffer pad 19 can protect both the lawbreaker and the law enforcement personnel.

[0027] As an improvement to the above embodiment, an LED light group 20 is further provided on the front side of the shield plate, and the LED light group is connected in series circuit. This improvement can temporarily reduce the resistance of lawbreakers by emitting strong light from the LED light group 20, which is conducive to increasing the success rate of deploying airbags to trap lawbreakers.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A shield, comprising a shield plate, wherein a handle and an adjustable forearm strap are provided on the dorsal side of the shield plate, characterized in that: It also includes airbag modules that are respectively set on the left and right sides of the shield plate. The airbag module includes an airbag and an airbag box. The airbag box includes a box body fixed to the shield plate and a box cover hinged to the box body. When the airbag is not inflated, all the airbags are located in the airbag box, and the box body is fixedly connected to the airbag. The shield also includes an inflation module for inflating the airbags so that the airbags pop out of the airbag box and a deflation module for deflating the airbags. When the airbags on the left and right sides of the shield are popped out and filled with gas, they are in a closed embrace state. The closed embrace state of the airbags and the shield together form a ring-shaped restraint structure.

2. The shield according to claim 1, characterized in that: The inflation module includes a container located inside the airbag and within the box, guanidine nitrate or sodium bismuth substituent contained in the container, a gas filter located outside the container, a resistance heater located inside the container to heat the guanidine nitrate or sodium bismuth substituent, a power supply fixed to the back side of the shield plate, and a switch located on the handle. The container has holes for releasing gas, and the power supply, switch, and resistance heater are connected in series by wires to form a circuit.

3. The shield according to claim 1, characterized in that: The inflation module includes a high-pressure gas cylinder fixed on the back side of the shield, a solenoid valve set at the outlet of the high-pressure gas cylinder, an inflation tube connecting the solenoid valve and the airbag, a power supply fixed on the back side of the shield, and a switch set on the handle. The power supply, switch, and solenoid valve are connected in series by wires to form a series circuit.

4. The shield according to any one of claims 1-3, characterized in that: The deflation module includes an exhaust pipe connecting the left and right airbags and an exhaust valve connected to the exhaust pipe.

5. The shield according to claim 1, characterized in that: The airbag is provided with Velcro, which is located on the mating surface of the airbag; when the left and right airbags are in the mating state, the Velcro on the two airbags are glued together.

6. The shield according to claim 1, characterized in that: A front buffer pad is provided on the front side of the shield plate, and a rear buffer pad is provided on the rear side of the shield plate.

7. The shield according to claim 2 or 3, characterized in that: The front side of the shield is also equipped with an LED light group, which is connected in series circuit.

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