Pneumatic throwing trainer

Abstract

A pneumatic throwing training device, the main points of which are that it is composed of an outer shell, an air chamber body, covers at both ends of the air chamber body, a central column installed in the air chamber body, a sealed air chamber body and a sealed cavity formed by the outer wall of the air chamber body and the inner wall of the outer shell, high-pressure gas is pre-stored in the air chamber body, the inner wall of the outer shell is processed with a continuous bullet spiral track, the terminal of the bullet spiral track is connected to the air outlet at the rear end of the air chamber body, the head of the central column is located in a cylindrical tube, and the tail of the central column is equipped with a gas-locking steel ball, which is fixed to the central column by a trigger tension spring, and the tail of the gas-locking steel ball is crimped to the surface of a UN-type sealing ring. After the pin is inserted, the UN-type sealing ring is in a closed state. The present invention avoids the traditional explosive drugs, and is a long-distance throwing training device with GAS gas as the power source. It is simple and safe to operate, can be used repeatedly through inflation, has few consumables, reduces training costs, increases training subjects, and adds many features to the fun of CS games.

Description

Technical Field

[0001] The invention relates to a throwing training device, in particular to a pneumatic throwing training device. Background Art

[0002] At present, in military teaching or CS game competitions, real gunpowder bombs are used as throwing training devices. Traditional throwing training devices are made of gunpowder, which requires tedious operations such as igniting explosive agents, and are detonated by flash agents and ignition agents. The safety factor is low, which is easy to cause accidental injuries or other injuries, and there are great safety hazards; therefore, they are restricted in safety teaching. In CS game competitions, although gunpowder bombs make simulated confrontation training realistic, gunpowder bombs in the game have a very high safety hazard. If a completely non-explosive physical training bomb is used, the safety of the physical training bomb makes the trainees have no concept of the danger of the throwing device in military teaching. Once live-fire training or on the battlefield, the danger brought by this paralysis is even greater. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the current throwing training device and provide a pneumatic throwing training device with good safety and similar effect to that of gunpowder bombs, which uses GAS gas as a power source.

[0004] The technical solution adopted by the present invention is a pneumatic throwing training device, the main points of which are that it is composed of an outer shell, an air chamber body, covers at both ends of the air chamber body, and a central column installed in the air chamber body. The outer shell is formed by buckling a notch shell at the upper part and a bottom hole shell at the lower part. The outer shell wraps the air chamber body, and the covers at both ends of the air chamber body seal the inner wall of the outer shell to form a closed inner cavity. The inner wall of the outer shell is processed with a continuous bullet spiral track. The starting end of the bullet spiral track is the bullet inlet and outlet port at the front end of the notch shell. A rubber column is installed on the side of the bullet spiral track close to the bullet inlet and outlet port to block a part of the BB bullet, and the terminal end is connected to the air outlet port at the rear end of the air chamber body. The mouths are connected, and the sealing covers at both ends of the air chamber body are the air chamber head cover at the front end and the air chamber tail cover at the rear end. An inflation nozzle is connected to the outer surface of the air chamber tail cover, and a UN-type sealing ring is installed on the inner surface. An air outlet hole is opened on the side. There is a protruding cylindrical tube on the air chamber head cover, and a through hole that can pass through the cylindrical tube is opened at the front end of the outer shell. A pin hole is designed on the cylindrical tube for fixing the pin. The head of the central column is located in the cylindrical tube, and an air-locking steel ball is installed at the tail of the central column. The air-locking steel ball is fixed to the central column by triggering a tension spring, and the tail of the air-locking steel ball is crimped on the surface of the UN-type sealing ring. After the pin is inserted, the UN-type sealing ring is in a closed state, and there is an inflation hole at the bottom of the outer shell.

[0005] The spiral track of the bullet of the present invention uses an elastic rubber column as a seal, and the rubber column only blocks a local channel in the bullet inlet and outlet. Under the action of external force, the elastic rubber column opens the channel for BB bullets to enter and exit. The present invention designs a closed air chamber body and a closed cavity formed by the outer wall of the air chamber body and the inner wall of the shell, and pre-stores high-pressure gas in the air chamber body. The axial direction of the center column is limited by a latch. Once the latch is released, the center column moves outward under the action of the pressure gas, driving the air-sealing steel ball to move in the same direction, and the UN-type sealing ring is freed from the restraint. The seal of the air chamber tail cover is destroyed, so that the high-pressure gas of the air chamber body escapes through the air outlet of the air chamber tail cover and enters the inner wall of the shell, pushing the BB bullet to move outward along the spiral track of the bullet, pushing the rubber column in the channel to diverge outward, and the scattered BB bullet imitates the shrapnel effect of the gunpowder bullet, but has no lethality, but it hurts when it hits a person at close range, so it has a certain degree of danger, increases the experiencer's sense of crisis, and thus achieves the purpose of live-fire training.

[0006] Further design: The front end of the air-blocking steel ball is provided with a small spring ring slot, and the upper end is a platform. The corresponding part of the platform is designed with a large pin hole that matches the large pin, and the large pin hole goes deep into the lower plane of the slot. The air-blocking steel ball is used as the opening device of the UN-type sealing ring of the air chamber tail cover. It connects the center column by triggering the tension spring. The opening and closing states are relatively gentle, which effectively prolongs the service life of the UN-type sealing ring. The upper surface is designed as a platform, which is conducive to the processing and assembly of the large pin hole.

[0007] The center of the center column is a cylindrical rod, and at least two guide vanes are arranged on the outer surface of the cylindrical rod. The outer diameter of the outermost guide vane is adapted to the inner diameter of the air chamber body. The guide vanes are mainly for the smooth movement of the center column. The structural design of the guide vanes is to meet the needs of the internal space of the air chamber body and reduce the weight. At the same time, the upper end surface of the guide vanes also serves as the upper limit of the movement of the center column.

[0008] There are four guide blades evenly distributed around the circumference. The stable design of four equal parts can make the center column move more smoothly.

[0009] The front and rear ends of the guide vane are at their maximum diameters. Only the front and rear ends of the guide vane are in contact with the air chamber body, which can reduce the processing surface and reduce production costs.

[0010] The cross section of the bullet spiral track is adapted to the cross section of the BB bullet, and only one BB bullet can pass through. Since the bullet spiral track is designed as a running channel for a BB bullet, it can realize orderly loading and firing, and bullets are not easily jammed.

[0011] There is a pull ring on the upper end of the bolt, which can be used to easily pull out the bolt and prevent it from being lost.

[0012] The initial state of the trigger tension spring is the pre-tightened state, which can better help the air-tight steel ball to leave the UN-type sealing ring.

[0013] The bullet spiral track has 7 circles in total, and the full trajectory is loaded with 135 BB bullets.

[0014] The present invention avoids the traditional explosives and uses GAS as the power source for long-distance throwing training equipment, which can overcome the above-mentioned shortcomings of the existing simulated cartridges. The invention uses the new principle of gas pressure difference, has a simple structure, is easy and safe to operate, and can achieve training effects. It can be used repeatedly through inflation, has less consumables, and reduces training costs. It not only increases the number of training subjects from scratch, but also plays a key role in the large-scale elimination of enemy personnel, adding many features to the fun of CS games. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure diagram of the present invention is

[0016] Figure 2 The exploded view of the present invention

[0017] Figure 3 for Figure 1 Top view

[0018] Figure 4 A schematic diagram of the structure of the present invention

[0019] Figure 5 Enlarged view of the air intake section

[0020] Figure 6 Internal diagram of the firing structure

[0021] Figure 7 Assembly diagram of the air chamber tail cover

[0022] Figure 8 Figure 1. Air outlet inside the air chamber tail cover

[0023] Fig. 9 This is a cross-sectional view of the shell section.

[0024] Fig.10 for Fig. 9 AA section view

[0025] Fig.11 Assembly diagram of the air chamber head cover

[0026] Fig.12 Internal view of the bottom hole shell

[0027] Among them: 1 slot shell, 1-1 bullet inlet and outlet; 2 bottom hole shell, 2-1 positioning protrusion, 2-2 slot, 2-3 long screw hole, 2-4 short screw hole, 2-5 bullet spiral track; 3 gas chamber body, 3-1 air outlet; 4 gas chamber tail cover, 4-1 air outlet, 4-2 inflation hole; 5 gas chamber head cover, 5-1 gas chamber head cover countersunk hole, 5-2 O-ring groove, 5-3 pin hole, 5-4 positioning groove, 5-5 sealing convex ring; 6 center column, 6-1 small pin hole, 6-2 small O-ring groove, 6-3 cylindrical rod, 6-4 guide vane; 7 inflation nozzle (with O-ring); 8 UN type sealing ring; 9 large O-ring (3 pcs); 10 air-sealing steel ball, 10-1 large pin hole, 10-2 tension spring small circle slot, 10-3 platform; 11 large pin; 12 trigger tension spring, 12-1 trigger tension spring small circle, 12-2 trigger tension spring large circle; 13 small pin; 14 small O-ring; 15 V-type sealing ring; 16 pin; 17 pull ring; 18 rubber column; 19 long screw; 20 short screw. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the drawings. The examples listed can help those skilled in the art to better understand the present invention, but they do not limit the present invention in any form.

[0029] like Figure 1-12As shown, the present invention is a pneumatic throwing training device, which is composed of an outer shell, an air chamber body 3, covers at both ends of the air chamber body, and a central column 6 installed in the air chamber body. The outer shell is a hollow cylindrical shell composed of two semi-cylindrical shells, that is, a notch shell 1 at the upper part and a bottom hole shell 2 at the lower part, which are buckled together. The outer shell wraps the air chamber body, and the covers at both ends of the air chamber body seal the inner wall of the outer shell to form a closed inner cavity. The inner wall of the outer shell is processed with a continuous bullet spiral track 2-5, and the upper surface of the bottom hole shell 2 is processed with a 2-1 positioning protrusion for aligning with the side of the air chamber head cover surface. The positioning groove 5-4 cooperates to fix the shell with the air chamber head cover, the air chamber body, and the air chamber tail cover (air chamber kit) into one, preventing the air chamber kit from moving or shaking, which may cause the air-tight steel ball seal to fail and cause air leakage. A groove 2-2 is processed on the side inner wall of the bullet spiral track at the connection between the notch shell 1 and the lower bottom hole shell 2 near the inlet and outlet port for assembling the rubber column. The groove 2-2 and the bullet spiral track partially overlap. The diameter of the bullet spiral track is 6mm, and the diameter of the rubber column is 3mm. The part of the local overlap between the groove 2-2 and the bullet spiral track is 0.5mm. The rubber column only blocks the local channel of the bullet spiral track. Under the action of external force, the elastic rubber column makes way for the channel; two long screw holes 2-3 are processed at both ends of the bottom hole shell, and a short screw hole 2-4 is processed in the middle. A through hole is processed at the corresponding part of the notch shell 1, and the notch shell and the bottom hole shell are fixed by long screws 19 and short screws 20. The starting end of the bullet spiral track is the bullet inlet and outlet port 1-1 at the front end of the notch shell, and a rubber column is installed on the side of the bullet spiral track close to the bullet inlet and outlet port to block the BB bullet part 18 (the rubber column 18 is elastic to prevent the bullet from overflowing), and the terminal is connected to the air outlet 3-1 at the rear end of the air chamber body. The sealing covers at both ends of the air chamber body are the front air chamber head cover 5 and the rear air chamber tail cover 4, which are connected to the air chamber body through external threads. An O-ring groove 5-2 is designed on the circumference of the air chamber head cover to match the O-ring 9, and an air chamber head cover countersunk hole 5-1 is processed on the inner surface of the air chamber head cover, and a V-shaped sealing ring 15 is installed in the air chamber head cover countersunk hole, and a positioning groove 5-4 is provided on the side of the surface of the air chamber head cover to match the positioning protrusion 2-1 of the bottom hole shell to play a limiting role.

[0030] There is a protruding cylindrical tube on the air chamber head cover, and a through hole that can pass through the cylindrical tube is opened at the front end of the shell. A pin hole 5-3 is designed on the cylindrical tube for fixing the pin 16. The head of the central column is located in the cylindrical tube, and a sealing steel ball is installed at the tail of the central column. The sealing steel ball is fixed to the central column by triggering a tension spring, and the tail of the sealing steel ball is crimped to the surface of the UN-type sealing ring. After the pin is inserted, the UN-type sealing ring is in a closed state.

[0031] O-ring grooves 5-2 matching with O-rings 9 are designed on the circumference of the upper and lower sides of the external thread of the air chamber tail cover 4, and an inflation hole 4-2 is processed on the end surface for installing an inflation nozzle 7 (with an O-ring), and an inflation hole is provided at the bottom of the corresponding shell. The inner surface of the air chamber tail cover is a central countersunk hole, and a UN-type sealing ring is installed in the hole to seal it. An air outlet hole 4-1 is opened on the side to communicate with the central countersunk hole. At the same time, the air outlet hole 4-1 is communicated with the air outlet 3-1 at the rear end of the air chamber body. Once the UN-type sealing ring leaves the countersunk hole, the inner cavity of the air chamber body and the bullet spiral track on the inner wall of the shell realize airway penetration. The cross section of the bullet spiral track 2-5 is adapted to the cross section of the BB bullet, and only one BB bullet can pass through. The cross section of the bullet spiral track 2-5 is generally hemispherical or spherical less than a hemisphere.

[0032] The air-sealing steel ball is connected to the trigger tension spring, and a tension spring small circle slot 10-2 is provided at its front end. The trigger tension spring small circle is embedded in the tension spring small circle slot. The upper end of the steel ball is a platform 10-3, and a large pin hole 10-1 cooperating with the large pin 11 is designed at the corresponding part of the platform. The large pin hole goes deep into the lower plane of the slot, which can firmly fix the large pin 11 and thus fix the trigger tension spring.

[0033] The center of the center column is a cylindrical rod 6-3, and a small O-ring groove 6-2 is processed on the head for assembling a small O-ring 14 to ensure the seal between the center column and the air chamber head cover. A small pin hole 6-1 is processed in the middle for installing a small pin 13 that fixes the large circle 12-2 of the trigger spring. The outer surface of the cylindrical rod is provided with at least two guide blades 6-4. There are four guide blades in the figure that are evenly distributed around the circumference. The middle part of the guide blade is a concave arc. The front and rear ends of the guide blade are at their maximum diameters. The outer diameter of the outermost side of the guide blade is adapted to the inner diameter of the air chamber body. After the guide blade is installed, there is a gap between the top of the guide blade and the bottom plane of the air chamber head cover 5. This gap is the movement stroke of the air-sealing steel ball and the UN-type sealing ring, which can ensure that the UN-type sealing ring opens the exhaust channel. The bottom of the center column and the air-sealing steel ball are processed into a corresponding spherical shape at the junction.

[0034] A pull ring 17 is provided at the upper end of the latch pin. The latch pin is composed of two large and small cylindrical sections. The small end matches with the latch pin hole, and a through hole or through groove matching with the pull ring 17 is provided on the large end.

[0035] The initial state of the trigger tension spring is the pre-tightened state, which can better help the air-tight steel ball to leave the UN-type sealing ring.

[0036] The bullet spiral track has a total of 7 circles, and the full trajectory is loaded with 135 BB bullets. The BB bullets have a diameter of 6mm and weigh 0.2g.

[0037] The gas used in the present invention is green gas (GAS), which is highly safe and has a gas pressure of 0.56 MPa. The designed gas capacity is about 33 cm3. After a device filled with gas falls on a hard ground, it can bounce up to about 1.5 meters due to the impact force of the gas. The diameter of the BB bullet spray is 12 meters. The explosive force after being fired is sufficient to spray out all the BB bullets in the simulation equipment. The explosion range is wide, which effectively simulates a wider lethality.

[0038] In order to achieve overall sealing, the present invention has adopted sealing measures in various components. For example, the sealing between the air chamber head cover, the air chamber tail cover and the outer shell adopts the side sealing convex rings 5-5 of the air chamber head cover and the air chamber tail cover, and the outer shell is provided with groove rings at corresponding positions. The side surfaces of the air chamber head cover and the air chamber tail cover and the air chamber body are sealed with O-rings, the center column and the side surfaces of the air chamber head cover are sealed with V-shaped sealing rings and O-rings, and the air-sealing steel ball and the air chamber tail cover are sealed with UN-type sealing rings.

[0039] The invention is reusable, and the gas is filled in the whole air chamber body through the inflation nozzle. Under the action of the air pressure difference, since the air chamber body, the UN-type sealing ring and the air chamber tail cover are hollow in the middle and ventilate each other, the air-blocking steel ball is normally pressed on the UN-type sealing ring of the air chamber tail cover, blocking the UN-type sealing ring, thereby blocking the air outlet of the air chamber body, forming the whole structure is sealed; however, after the slot pin is pulled out and thrown out, the gas inside will move along with the vibration of the structure, and the action of the triggering tension spring will make the air-blocking steel ball swing up and down, and the moment the air-blocking steel ball leaves the UN-type sealing ring, the gas in the seal will collectively jump out of the outer slot body through the air outlet, and the gas pressure is used to push the bullet to be ejected from the bullet outlet along the track of the shell.

[0040] The assembly process of the present invention is as follows: first, take a trigger tension spring 12, align the small coil 12-1 of one end of the tension spring with the slot 10-1 of the air-sealing steel ball 10, install it into the air-sealing steel ball 10 and press the large pin 11 to fix the trigger tension spring 12 and the air-sealing steel ball 10 into one, insert the small O-ring 14 into the small O-ring slot 6-2 of the center column 6, and then install the large coil 12-2 of the tension spring at the other end of the assembled trigger tension spring 12 into the small pin 13, align it with the small pin hole 6-1 of the center column and knock it in to achieve the fixation of the trigger tension spring and the center column; take the UN-type sealing ring 8 and install it in the air chamber tail cover 4, then take two large O-rings 9 and respectively put them into the O-ring slot 5-2, and then screw the inflation nozzle 7 into the inflation hole 4-2 at the rear end of the air chamber tail cover 4; take the air chamber head cover 5, and then take a V-groove The sealing ring 15 is pressed into the countersunk hole 5-1 of the air intake chamber head cover, and a large O-ring 9 is inserted into the O-ring groove 5-2; then the assembled air chamber tail cover 4 is screwed into the air chamber body 3, the assembled center column 6 is placed into the air chamber body 3, the air-sealing steel ball 10 is placed downward on the assembled UN-type sealing ring 8, and then the assembled air chamber head cover 5 is locked; finally, the assembled air chamber body 3 is installed into the bottom hole shell 2, and it is noted that the positioning groove 5-4 and the positioning protrusion 2-1 are aligned and installed, and then the rubber column 18 is placed into the groove 2-2 on the side of the bottom hole shell 2, the notch shell 1 and the bottom hole shell 2 are pressed and locked with 4 long screws 19 and the 2 short screws 20 in the middle, the pull ring 17 is buckled into the latch 16 and then inserted into the latch hole 5-3, the assembly is completed, and it can be pulled out when used.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the principle of the present invention, making several changes and improvements should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A pneumatic throwing training device, characterized in that: It is composed of an outer shell, an air chamber body, sealing covers at both ends of the air chamber body, and a central column installed in the air chamber body. The outer shell is formed by buckling a notch shell at an upper part and a bottom hole shell at a lower part. The outer shell wraps the air chamber body, and the inner wall of the outer shell is sealed by the sealing covers at both ends of the air chamber body to form a closed inner cavity. A continuous bullet spiral track is processed on the inner wall of the outer shell. The starting end of the bullet spiral track is the bullet inlet and outlet port at the front end of the notch shell. A rubber column is installed on the side of the bullet spiral track close to the bullet inlet and outlet port to block a part of the BB bullet. The terminal is communicated with the air outlet at the rear end of the air chamber body. The sealing covers at both ends of the air chamber body are the front air chamber head cover and the rear air chamber tail cover. The outer surface of the air chamber tail cover is connected with a filling The air nozzle has a central countersunk hole on the inner surface of the air chamber tail cover, a UN-type sealing ring is installed in the hole to seal it, an air outlet hole (4-1) is opened on the side and communicates with the central countersunk hole, and at the same time, the air outlet hole (4-1) is communicated with the air outlet (3-1) at the rear end of the air chamber body. Once the UN-type sealing ring leaves the countersunk hole, the inner cavity of the air chamber body and the bullet spiral track on the inner wall of the shell realize airway communication. The air chamber head cover has an extended cylindrical tube, the front end of the shell has a through hole that can pass through the cylindrical tube, and the cylindrical tube is designed with a pin hole (5-3) for fixing the pin (16). The head of the central column is located in the cylindrical tube, and the tail of the central column is equipped with a gas-blocking steel ball, which is fixed to the cylinder by triggering a tension spring. On the center column, the front end of the air-blocking steel ball is provided with a tension spring small circle clamping groove (10-2), the trigger tension spring small circle is embedded in the tension spring small circle clamping groove, the upper end of the steel ball is a platform (10-3), the corresponding part of the platform is designed with a large pin hole (10-1) matched with the large pin (11), the large pin hole penetrates into the lower plane of the clamping groove, and can firmly fix the large pin (11) and thus fix the trigger tension spring; the center of the center column is a cylindrical rod (6-3), the head is processed with a small O-ring groove (6-2) for assembling a small O-ring (14) to ensure the sealing between the center column and the air chamber head cover, and the middle is processed with a small pin hole (6-1) for installing and fixing the trigger tension spring large circle (12- 2) a small pin (13), the outer surface of the cylindrical rod is provided with at least two guide blades (6-4), the middle part of the guide blade is an inwardly concave arc, the front and rear ends of the guide blade are at their maximum diameters, the outer diameter of the outermost side of the guide blade is adapted to the inner diameter of the air chamber body, and there is a gap between the top of the guide blade after installation and the bottom plane of the air chamber head cover (5), and this gap is the movement stroke of the air-sealing steel ball and the UN-type sealing ring, which can ensure that the UN-type sealing ring opens the exhaust channel, and the bottom of the center column and the air-sealing steel ball are processed into a corresponding spherical shape; the tail of the air-sealing steel ball is pressed against the surface of the UN-type sealing ring, and after the pin is inserted, the UN-type sealing ring is in a closed state, and there is an inflation hole at the bottom of the shell.

2. A pneumatic throwing training device according to claim 1, characterized in that: There are four guide blades evenly distributed around the circumference.

3. A pneumatic throwing training device according to claim 1, characterized in that: The cross section of the bullet's spiral track is adapted to the cross section of the BB bullet and can only pass one BB bullet.

4. A pneumatic throwing training device according to claim 1, characterized in that: A pull ring (17) is arranged on the upper end of the latch.

5. A pneumatic throwing training device according to claim 1, characterized in that: The initial state of the trigger tension spring is a pre-tensioned state.

6. A pneumatic throwing training device according to claim 1, characterized in that: The bullet spiral track has 7 circles in total, and the full trajectory is loaded with 135 BB bullets.

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