Rotary aeration rebound shield

Abstract

The invention discloses a handheld rotary aeration bounce shield which comprises a shield body, a gas storage pipeline, an aeration valve, an aeration pipeline, aeration spray holes, a swirl circulation ring, circulation ring vent holes, a filler opening, a filling pipeline, a reinforcing diameter, an inflation nozzle, a shield handle and a handle damping spring. The gas storage pipeline is located on the back face of the shield body and connected with the aeration valve and the aeration pipeline. The gas storage pipeline is connected with the gas explosion spraying holes, after the gas explosion valve is opened, gas in the gas storage pipeline is sprayed out from the gas explosion spraying holes in the front face of the shield through the gas explosion pipeline, the straight hole is located in the center of the shield body and sprays gas flow towards the front face of the shield, and meanwhile the bent holes are formed in the periphery of the straight hole. The jet air flow forms rotary air flow around the straight hole under the constraint of the rotary air circulation ring, the rotary air flow and the middle direct jet air flow form a rotary air drill, attacked thrown objects can be rebounded and hit away, impact waves can be dispersed and unloaded, attack and defense are integrated, and therefore users are protected.

Description

Technical Field

[0001] The invention belongs to the field of protection, and more particularly, relates to a handheld shield. Background Art

[0002] The function of a shield is to block attacks, and its protective function depends on the strength of the shield to passively withstand the full force of the opponent's attack. However, even if the shield is strong enough, it is difficult to completely defend against liquid attacks from the opponent, such as homemade gasoline incendiary bombs, which hit and break on the shield and cause combustion. The personnel can only abandon the shield and lose protection. Other examples include other powders, poison gas bombs, various projectiles, etc.

[0003] Therefore, improving the traditional shield and developing a shield that can rebound thrown objects can greatly ensure the safety of personnel when performing tasks. Summary of the invention

[0004] In order to enhance the function of the shield, the present application provides a handheld rotating explosive rebound shield, which utilizes the rotating high-speed airflow to form an air drill to disperse and unload the shock wave. It can also rebound and knock away incoming projectiles, integrating offense and defense to protect the user.

[0005] The shield of the present invention comprises a shield body, an air storage pipeline, an air explosion valve, an air explosion pipeline, an air explosion nozzle, a cyclone circulation circle, an air diffusion hole of the circulation circle, a filling port, a filling pipeline, a reinforcement diameter, an air filling nozzle, a shield handle, and a handle shock absorbing spring.

[0006] The gas storage pipeline is located on the back of the shield body. It is a circle of hollow pipelines arranged along the outer periphery of the shield body toward the center of the circle. It is connected with the explosion valve, the explosion pipeline, and the explosion nozzle in sequence. After the explosion valve is opened, the gas in the gas storage pipeline passes through the explosion pipeline and is ejected from the explosion straight hole and the explosion curved hole on the front of the shield. The gas storage pipeline is connected with an inflation nozzle. The inflation method can be an electric inflation pump, and a high-pressure air pump can be used if there is no electricity.

[0007] The explosion holes are multiple air jet holes located on the front of the shield, connected to the explosion pipe on the back of the shield, one of which is a straight hole located in the middle of the shield and extending a certain length from the shield surface, with the airflow outlet direction facing the front of the shield, and the other multiple holes are curved holes, distributed between the straight holes and the cyclone circulation circle, and evenly placed in a circular ring shape with the same center as the straight holes, with an extension length lower than the cyclone circulation circle and higher than the air diffusion hole of the circulation circle, and the airflow outlet direction of each curved hole points to the outlet position of the next curved hole.

[0008] The cyclone circulation circle is a circular tube located on the front of the shield, which is concentric with the blast straight hole, has a diameter larger than the blast curved hole, and is higher than the blast curved hole from the front of the shield. The airflow ejected from the blast curved hole forms an annular airflow at the speed of this circulation circle, and is driven by the airflow from the middle blast straight hole to rotate forward toward the front of the shield.

[0009] The air diffusion holes of the circulation circle are located at the position of the cyclone circulation circle close to the shield. They are multiple evenly distributed hole grooves. The height of the hole grooves is lower than the explosion bend holes. If the airflow in the circulation circle is affected by the front shock wave, it will be pressed back and dispersed to the surroundings from the air diffusion holes, and then rush out from the periphery of the shield to form an airflow protection cover beyond the shield. It plays a protective role against harmful shock waves and liquids beyond the range of the shield. The stronger the shock wave, the larger and more reliable the protection cover.

[0010] The air dispersion compression ring is located on the front of the shield and is a circle of rings arranged along the outer periphery of the shield body toward the center of the circle. Its outer periphery is smaller than the outer periphery of the shield and is at a certain distance from the shield surface. The inner periphery is at a greater distance from the shield surface than the outer periphery, forming an outer ring with a low outer side and a high inner side. Its function is to compress and accelerate the airflow emitted from the air dispersion holes in the circulation circle.

[0011] The filling pipeline is located in the middle of the explosion hole, passes through the explosion pipeline from the back of the shield to the front of the shield and extends a certain length. Its outer diameter is smaller than the inner diameter of the explosion hole. Liquid, small solid particles, or other gases can be added from the pipeline. These injected objects are driven by the airflow of the explosion hole and can impact distant targets, attack throwing objects one step ahead, and take precautions in advance.

[0012] The reinforcement paths are located on the front of the shield and there are multiple of them, extending from the cyclone circulation circle to the periphery of the shield.

[0013] The shield handle has a hand grip part connected to the shield body by an elastic material, which can buffer the impact force faced, and can be a spring or rubber.

[0014] The glass window is arranged on the back of the shield body, near the top, and can be folded backward when carried. When erected, it is convenient for the user to observe the direction of the thrown object and keep the shield facing the direction of the thrown object. This position is behind the protective cover formed by the diffuse airflow, which avoids the damage of the shock wave to the window as much as possible. In the absence of shock waves, the window cannot be damaged by welcoming the thrown object with the shield. The glass is generally tempered glass or organic glass.

[0015] The filling port is located in the explosion gas pipeline. If the use environment permits, gunpowder, or other fuels, liquid fuel, or gas that can produce a large amount of gas high-pressure injection can be used. In this application, the filling port is in a closed standby state. The specific filling and detonation method will be applied for separately as a continuation patent of this application. When the filling port is used, the explosion gas is generally faster and more violent than the compressed gas. At this time, the gas storage pipeline acts as a buffer gas tank, which first buffers the explosion gas and then releases it slowly, which can extend the explosion gas eruption time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 The front side of the shield of the present invention is the side facing the enemy;

[0018] Figure 2 It is the reverse side of the shield of the present invention and the gripping side of the user;

[0019] Figure 3 It is a side view of the present invention.

[0020] Legend: 1, shield body 2, gas storage pipeline 3, explosion straight hole valve 4, explosion bent hole valve 5, filling port 6, explosion pipeline, 7, cyclone circulation circle 8, circulation circle air diffusion hole 9, explosion straight hole 10, filling pipeline 11, explosion bent hole 12 bent hole air flow ejection direction 13, swirling air flow diagram 14, air flow direction of air diffusion hole 15, direct injection explosion direction 16, reinforced diameter 17, inflation nozzle 18, shield handle 19, handle shock absorption 20, transparent observation window 21, filling pipeline valve 22, valve control module 23, inflation pump 24, air diffusion compression ring DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0022] The user faces the shield towards the violent personnel, and observes the direction of the source of the thrown object through the upwardly flipped transparent observation window 22, and keeps the shield facing the direction of the thrown object. At this time, the air pump 23 fills the gas storage pipe 2 with high-pressure gas through the air filling nozzle 17. When the object thrown by the violent personnel approaches the shield, the explosion valves 3 and 4 are opened, and the gas passes through the explosion pipe 6. A part of the gas is ejected forward from the explosion straight hole 9 as the air flow 15, and the other part is ejected from the three explosion curved holes at the same time. Since the three explosion holes are arranged in a circle, under the constraint of the cyclone circulation circle 7, the gas forms a rotating circle (see the circulating gas schematic 13). The rotating airflow 13 is driven by the straight jet 15 from the middle explosion hole and moves forward to the front of the shield at the same time, forming a rotation thrust on the thrown object, causing the thrown object to deviate from the direction or directly bounce off, and liquids will be thrown away.

[0023] If the opponent's thrown object explodes, the shock wave generated will also be dispersed by the rotating airflow. The weakened shock wave will press the rotating airflow closer to the shield and spray out from the circulation circle air holes 8 to the surroundings. After being compressed and accelerated by the air compression ring 24, a diffuse airflow 14 is formed and sprayed out to the surroundings. The greater the shock wave pressure, the greater the pressure and speed of the gas sprayed to the surroundings, forming an airflow cover larger than the shield surface to protect the user.

[0024] After the filling pipe 10 is filled with, for example, a viscous liquid, the filled liquid can be sprayed toward distant hostile personnel under the drive of the direct explosion airflow 15, giving the enemy a head start.

[0025] In this application case, an electric air pump is used to supply air, and the frequency of explosion depends on the power of the air pump. The current small handheld electric air pump has a general output flow of 30 liters per minute and a pressure of more than 10 kilograms, so the general explosion frequency is once every half a minute to one minute. A high-pressure air pump can be used when there is no electricity. The spare filling port 5 is filled with explosive materials, and filling, explosion, and then filling and explosion can be completed in a very short time of two to three seconds. The specific filling and detonation method is extremely complicated and will be applied for separately as a continuation patent of this application.

[0026] In this application case, the valve is manually opened as an example. The control circuit in the valve control module will be an intelligent, automated and efficient circuit. The user does not need to operate the valve. The success rate of protection against manually thrown objects is extremely high, and there is basically no possibility of failure. In order to avoid the complication of the application, the control circuit in the module will also be applied for separately as a continuation patent of this application.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A handheld shield, characterized in that: The shield comprises a shield body, an air storage pipeline, an air explosion valve, an air explosion pipeline, an air explosion nozzle, a cyclone circulation circle, an air diffusion hole of the circulation circle, a filling port, a filling pipeline, a reinforcement diameter, an air charging nozzle, a shield handle, and a handle shock-absorbing spring. The air storage pipeline is located on the back of the shield body, and is a circle of hollow pipelines arranged along the outer periphery of the shield body toward the center of a circle, and is connected to the air explosion valve, the air explosion pipeline, and the air explosion nozzle in sequence, and is also connected to the air charging nozzle; the air explosion nozzle is a plurality of air injection holes located on the front of the shield, connected to the air explosion pipeline on the back of the shield, one of which is a straight hole in the middle of the shield and extends a certain length from the shield surface, and the air flow outlet direction is directly in front of the shield, and the remaining plurality of air flow outlets are curved holes, which are distributed between the straight hole and the cyclone circulation circle, and are evenly arranged in a circular ring shape with the same center as the straight hole, and the extension length is shorter than the cyclone circulation circle. The shield is higher than the air diffusion holes of the circulation circle, and the air flow outlet direction of each curved hole points to the outlet position of the next curved hole; the cyclone circulation circle is a circular tube located on the front of the shield, concentric with the explosion straight hole, with a diameter larger than the circle formed by all the explosion curved holes, and a height higher than the explosion curved holes from the front of the shield; the air diffusion holes of the circulation circle are located at the position where the cyclone circulation circle is close to the shield surface, and a plurality of hole grooves are evenly and densely distributed around the circle, and the height of the hole grooves is lower than the explosion curved holes; the air diffusion compression ring is located on the front of the shield, and is a circle of circular rings arranged along the outer periphery of the shield body toward the center of the circle, and its outer periphery is smaller than the outer periphery of the shield, and is at a certain distance from the shield surface, and the inner periphery is at a greater distance from the shield surface than the outer periphery; the filling pipeline is located in the middle of the explosion straight hole, passes through the explosion pipeline from the back of the shield to the front of the shield and extends a certain length, and its outer diameter is smaller than the inner diameter of the explosion straight hole.

2. A shield according to claim 1, characterized in that: The glass window is arranged on the back of the shield body, close to the top, and can be movably folded backwards.

3. A shield according to claim 1, characterized in that: The reinforcement paths are located on the front of the shield and there are multiple of them, extending from the cyclone circulation circle to the periphery of the shield.

4. A shield according to claim 1, characterized in that: The shield handle has a hand grip part and a shield body connected with each other by elastic material.

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