A large elevation angle launch protection device for a 40mm rocket launcher

Abstract

The present invention discloses a large elevation angle launch protection device for a 40mm rocket launcher, including a guide tube fixing mechanism and a sliding protection mechanism; the guide tube fixing mechanism is fixedly connected to the tail of the gun barrel, and the sliding protection mechanism is sleeved on the guide tube fixing mechanism and can slide relative to the guide tube fixing mechanism, and the protective cover is deployed to block between the high-temperature and high-pressure gas and the shooter; the present invention can achieve that when launching at a large elevation angle, the high-temperature and high-pressure gas generated by the rocket projectile will not cause harm to the shooter.

Description

Technical Field

[0001] The present invention belongs to the technical field of ammunition launch protection devices, and particularly relates to a large elevation angle launch protection device for a 40mm rocket launcher. Background Art

[0002] As a powerful weapon for infantry close combat, the 40mm rocket sometimes needs to be launched at a large elevation angle (>30°). When launched, high-temperature and high-pressure gas will be generated at the tail of the barrel. These high-temperature and high-pressure gases and the objects blown up by them on the ground will cause harm to the shooter. In order to protect the shooter from being harmed by the ammunition gas when launching the rocket at a large elevation angle (>30°), a protection device must be installed at the tail of the launcher to ensure the safety of the shooter. Summary of the Invention

[0003] In view of this, the present invention provides a large elevation angle launch protection device for a 40mm rocket launcher, which can ensure that the high-temperature and high-pressure gas generated by the rocket will not cause harm to the shooter when launched at a large elevation angle.

[0004] The technical solution of the present invention is realized as follows:

[0005] A large elevation angle launch protection device for a 40mm rocket launcher includes a flow guide pipe fixing mechanism and a sliding protection mechanism; the flow guide pipe fixing mechanism is fixedly connected to the tail of the barrel, and the sliding protection mechanism is sleeved on the flow guide pipe fixing mechanism and can slide relative to the flow guide pipe fixing mechanism, and the protective cover is unfolded to block between the high-temperature and high-pressure gas and the shooter.

[0006] Further, the flow guide pipe fixing mechanism includes a clamping member, a self-locking spring pin and a flow guide pipe;

[0007] Two semi-circular clamping members are inserted into the corresponding grooves at the tail of the barrel nozzle, the convex part of the end face flange of the flow guide pipe is inserted into the clamping member to ensure that the end face flange of the flow guide pipe is in contact with the tail of the barrel nozzle, and the four holes on the circumferential surface of the flow guide pipe flange correspond to the holes on the clamping member. The flow guide pipe and the clamping member are fixed to the tail of the barrel nozzle by inserting four self-locking spring pins into the four holes.

[0008] Further, the sliding protection mechanism includes a high-temperature resistant cloth, a support rod, a torsion spring, a torsion spring shaft, a sliding pipe, a clamping hoop and a connecting shaft; 6 groups of sheet metals are arranged on the outer circumferential surface of the sliding pipe; the support rod mounting holes and the torsion spring mounting holes are processed on the sheet metals;

[0009] One end of the support rod is placed between a group of sheet metals on the outer circular surface of the sliding tube. At the same time, the hole on the support rod corresponds to the front hole on the sheet metal. Then, the connecting shaft is passed through the sheet metal and the support rod to fix the support rod on the sliding tube. Then, the torsion spring is placed between the two sheet metals. At this time, the torsion spring hole corresponds to the rear hole on the sheet metal. At the same time, the torsion spring shaft is inserted and fixed. The remaining five support rods are installed in the same way. Then, a fan-shaped high-temperature resistant cloth of a certain length is used to wrap around the six support rods. Finally, the closure is completed while ensuring that the support rods are at a certain angle. The high-temperature resistant cloth is fixed to the sliding tube with a clamping hoop, and the high-temperature resistant cloth and the support rod are connected with a thin steel wire rope.

[0010] Furthermore, the sliding tube is sleeved on the guide tube, and the hole on the sliding tube corresponds to the U-shaped groove of the guide tube. The sliding tube is fixed to the guide tube by screws and nuts and can slide along the U-shaped groove of the guide tube.

[0011] Furthermore, when the barrel is in working condition, the screws and nuts are loosened by a certain gap, and then the sliding protection mechanism is manually pushed to move it on the U-shaped groove on the guide tube until it moves to the end away from the barrel and fixes the screws and nuts. Finally, the rope that binds the high-temperature resistant cloth is removed, and the high-temperature resistant cloth is stretched and fixed under the action of the torsion spring.

[0012] Beneficial effects:

[0013] For the convenience of disassembly, the structure of the present invention is connected by a self-locking spring pin, which makes it easier to connect and disassemble the entire structure to the barrel. At the same time, the U-shaped groove on the guide tube can also reduce the length of the entire protection device when the protection mechanism is in a closed state, making it more convenient to carry. When in a working state, the gas diversion length can be increased, so that the gas is further away from the shooter after leaving the barrel, thereby protecting the shooter from another aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An exploded view of the device of the present invention;

[0015] Figure 2 is an axonometric view of the device of the present invention;

[0016] Figure 3 is a cross-sectional view of the device of the present invention;

[0017] Figure 4 is a cross-sectional view of the sliding protection mechanism of the present invention;

[0018] Figure 5 is an axonometric view of the sliding protection mechanism of the present invention;

[0019] Figure 6 It is an axonometric view of the device of the present invention when it is in a closed state;

[0020] Figure 7 Cross-sectional view and axonometric view of the sliding tube; (a) is the cross-sectional view and (b) is the axonometric view.

[0021] Among them, 1 - the tail of the barrel, 2 - the clamping piece, 3 - the tail of the nozzle, 4 - the self-locking spring pin, 5 - the diversion tube, 6 - the nut, 7 - the screw, 8 - the sliding protection mechanism, 8-1 - high-temperature resistant cloth, 8-2 - the support rod, 8-3 - the torsion spring, 8-4 - the torsion spring shaft, 8-5 - the clamping hoop, 8-6 - the sliding tube, 8-7 - the connecting shaft. Specific implementation manner

[0022] The present invention will be described in detail below with reference to the accompanying drawings and by way of examples.

[0023] The present invention provides a large elevation angle launch protection device for a 40mm rocket launcher, as Figures 1-3 shown, mainly including a diversion tube fixing mechanism and a sliding protection mechanism, wherein the diversion tube fixing mechanism is fixed on the tail of the gun barrel, and the sliding protection mechanism is fixed on the diversion tube.

[0024] The diversion tube fixing mechanism is composed of a clamping piece 2, a self-locking spring pin 4, and a diversion tube 5. First, insert two semi-circular clamping pieces into the corresponding grooves at the tail of the nozzle of the gun barrel. Secondly, insert the raised part of the flange of the reverse flow tube into the clamping piece, and at the same time ensure that the diversion tube is in contact with the tail of the nozzle of the gun barrel. The four holes on the side of the flange of the diversion tube correspond to the holes on the clamping piece. Finally, fix the diversion tube and the clamping piece on the gun barrel with a self-locking spring pin.

[0025] As Figures 4-5 shown, the sliding protection mechanism includes a high-temperature resistant cloth 8-1, a support rod 8-2, a torsion spring 8-3, a torsion spring shaft 8-4, a sliding tube 8-6, a clamping hoop 8-5, and a connecting shaft 8-7. As Figure 7 (a) and (b) shown, 6 groups of sheet metals are arranged on the outer cylindrical surface of the sliding tube 8-6; support rod mounting holes (hole A) and torsion spring mounting holes (hole B) are processed on the sheet metals;

[0026] First, place the support rod between two sheet metals on the sliding tube, and at the same time, the holes on the support rod correspond to the holes A on the sheet metal. Then, pass the connecting shaft through the sheet metal and the support rod to fix the support rod on the sliding tube. Then, place the torsion spring between two sheet metals, and make the holes of the torsion spring correspond to the holes B on the sheet metal. At the same time, insert and fix the torsion spring shaft. The other five support rods are installed in the same way. Then, surround a certain length of fan-shaped high-temperature resistant cloth around the six support rods, and finally complete the closure, while ensuring that the support rods form a certain angle. The high-temperature resistant cloth is fixed on the sliding tube with a clamping hoop, and the high-temperature resistant cloth and the support rod are connected with a thin steel wire rope.

[0027] Finally, insert the sliding protection mechanism onto the diversion tube, and then fix it with screws and nuts.

[0028] Before the gun barrel is used, the device is in a closed state, as Figure 6 shown. At this time, the high-temperature resistant cloth is in a closed state and is tied up with an elastic rope. The sliding protection mechanism is located on the U-shaped groove of the diversion tube near the gun barrel and is fixed with screws and nuts. At the same time, the high-temperature resistant cloth shrinks and is tied up with a rope to reduce the length of the entire protection device for easy carrying. When the gun barrel is fired at a large elevation angle, the device is as Figure 3 shown. First, loosen the screws and nuts by a certain gap, and then manually push the sliding protection mechanism to move it on the U-shaped groove of the diversion tube until it moves to the end far from the gun barrel and fix the screws and nuts. Finally, remove the rope tying the high-temperature resistant cloth. The high-temperature resistant cloth is stretched to a certain angle and fixed under the action of the torsion spring. This increases the reverse flow length of the high-temperature and high-pressure gas of the rocket projectile and can better protect the shooter. The steps during contraction are the opposite.

[0029] In summary, the above are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large elevation angle launch protection device for a 40mm rocket launcher, characterized in that, It includes a guide tube fixing mechanism and a sliding protection mechanism; the guide tube fixing mechanism is fixedly connected to the tail of the gun barrel, and the sliding protection mechanism is sleeved on the guide tube fixing mechanism, and can slide relatively along the guide tube fixing mechanism, and unfold the protection cover to block between the high-temperature and high-pressure gas and the shooter; The sliding protection mechanism includes high temperature resistant cloth, support rod, torsion spring, torsion spring shaft, sliding tube, clamping hoop and connecting shaft; 6 sets of sheet metal pieces are arranged on the outer cylindrical surface of the sliding tube; the sheet metal pieces are processed with support rod mounting holes and torsion spring mounting holes; One end of the support rod is placed between a group of sheet metals on the outer circumferential surface of the sliding tube, and the hole on the support rod corresponds to the front hole on the sheet metal. Then, the connecting shaft is passed through the sheet metal and the support rod to fix the support rod on the sliding tube. Then, the torsion spring is placed between the two sheet metals. At this time, the torsion spring hole corresponds to the rear hole on the sheet metal. At the same time, the torsion spring shaft is inserted and fixed. The remaining five support rods are installed in the same way. Then, a fan-shaped high-temperature resistant cloth of a certain length is used to wrap around the six support rods. Finally, the closure is completed, and the support rods are ensured to be at a certain angle. The high-temperature resistant cloth is fixed on the sliding tube with a clamping hoop, and the high-temperature resistant cloth and the support rod are connected with a thin steel wire rope. The sliding tube is sleeved on the guide tube, and the hole on the sliding tube corresponds to the U-shaped groove of the guide tube. The sliding tube is fixed on the guide tube by screws and nuts, and can slide along the U-shaped groove of the guide tube. When the barrel is in working condition, loosen the screws and nuts by a certain gap, and then manually push the sliding protection mechanism to move it on the U-shaped groove on the guide tube until it moves to the end away from the barrel and fix the screws and nuts. Finally, remove the rope that binds the high-temperature resistant cloth, and the high-temperature resistant cloth is stretched and fixed under the action of the torsion spring.

2. The large elevation angle launch protection device for a 40mm rocket launcher according to claim 1, characterized in that, The guide tube fixing mechanism comprises a clamping member, a self-locking spring pin and a guide tube; Two semicircular clamping parts are inserted into the corresponding grooves at the tail of the barrel nozzle, and the raised part of the end flange of the guide tube is inserted into the clamping parts to ensure that the end flange of the guide tube fits with the tail of the barrel nozzle. The four holes on the circumferential surface of the guide tube flange correspond to the positions of the holes on the clamping parts. Four self-locking spring pins are inserted into the four holes to fix the guide tube and the clamping parts to the tail of the barrel nozzle.

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