Electric recoil force simulation device for firearms

Abstract

The utility model discloses a firearm electric recoil simulation device. The firearm electric recoil simulation device comprises a device shell, a magnetic impact rod, a reset spring, an electromagnetic coil and a drive circuit. The device shell is fixedly connected with a gun barrel mounting wall in front of the device shell; the front end part of the magnetic impact rod penetrates through the device shell and the gun barrel mounting wall to extend forwards, the front end part of the magnetic impact rod is provided with an impact rod head, the rear end part of the magnetic impact rod penetrates through the device shell to extend backwards, and the rear end part of the magnetic impact rod is provided with a limiting rod shoulder; the reset spring is arranged between the device shell and the limiting rod shoulder; and the electromagnetic coil surrounds the magnetic impact rod. The recoil force simulation device has the advantages that when the electromagnetic coil loses power, the reset spring drives the magnetic impact rod to move backwards till the impact rod head impacts the gun barrel installation wall, and therefore recoil force generated during firearm shooting is simulated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of firearms, in particular to a firearm electric recoil simulation device. BACKGROUND

[0002] The "laser simulation shooting device with one-way recoil" provided by Chinese patent CN106871714A provides a one-way recoil execution mechanism, which specifically comprises: an electromagnet frame with an electromagnetic coil, the electromagnet frame is fixedly connected to the barrel, and the impact part on the magnetic impact rod impacts the impacted part on the electromagnet frame to form one-way recoil through the action of electromagnetic force. Wherein, the impact position of the impact part and the impacted part is inside the electromagnet frame, and the one-way recoil is indirectly transmitted to the barrel through the electromagnet frame. SUMMARY

[0003] The utility model aims at providing a firearm electric recoil simulation device different from the background technology.

[0004] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows: a firearm electric recoil simulation device, comprising: a device shell, a magnetic impact rod, a return spring, an electromagnetic coil and a driving circuit for driving the electromagnetic coil; the device shell is fixedly connected with the barrel mounting wall in front of it; the magnetic impact rod is inside the device shell, the magnetic impact rod extends along the front and back directions, the front end part of the magnetic impact rod extends forward through the device shell and the barrel mounting wall, the front end part of the magnetic impact rod has an impact rod head, the rear end part of the magnetic impact rod extends backward through the device shell, and the rear end part of the magnetic impact rod has a limiting rod shoulder; the return spring is outside the device shell, the return spring surrounds the magnetic impact rod and is between the device shell and the limiting rod shoulder; the electromagnetic coil is inside the device shell, and the electromagnetic coil surrounds the magnetic impact rod; the magnetic force generated by the electromagnetic coil drives the impact rod head of the magnetic impact rod to move away from the barrel mounting wall, at this time, the return spring is in the force storage state; when the electromagnetic coil loses power, the return spring drives the magnetic impact rod to displace backward until the impact rod head impacts the barrel mounting wall. The beneficial effect at least lies in that when the electromagnetic coil loses power, the return spring drives the magnetic impact rod to displace backward until the impact rod head impacts the barrel mounting wall, so as to simulate the recoil generated when the firearm shoots. Wherein, the recoil directly acts on the barrel mounting wall.

[0005] As the preferred scheme of the electrically-powered recoil simulation device of the firearm, the electromagnetic coil selects the enameled wire, the diameter is 1.1mm, the number of turns is 187 turns, and the resistance value is 0.3269Ω. The purpose is to provide greater instantaneous force value output under 12V voltage.

[0006] As the preferred scheme of the electrically-powered recoil simulation device of the firearm, the device shell selects the aluminum alloy material, and there is a silica gel heat conduction layer between the device shell and the electromagnetic coil. The beneficial effect at least lies in: reducing the coil temperature rise, preventing the electromagnetic coil from causing temperature to be too high due to continuous work.

[0007] As the preferred scheme of the electrically-powered recoil simulation device of the firearm, the driving circuit has a gate driver TC4420, a MOSFET tube IRFS3207 and a Schottky diode SR5100, the output end of the gate driver TC4420 is connected with the gate of the MOSFET tube IRFS3207, the source of the MOSFET tube IRFS3207 is grounded, the drain of the MOSFET tube IRFS3207 is respectively connected with the positive pole of the Schottky diode SR5100 and one end of the electromagnetic coil, and the negative pole of the Schottky diode SR5100 is connected with the opposite end of the electromagnetic coil. The beneficial effect at least lies in: providing a fast-response driving circuit and improving the dynamic performance of the electromagnetic coil. Wherein, the gate driver TC4420 is a high-speed gate driver, which provides a gate current of up to 6A, and ensures that the MOSFET tube IRFS3207 is switched quickly. Wherein, the MOSFET tube IRFS3207 is low on-resistance, and the on-resistance is only 3.5mΩ, which can bear large current. Wherein, the Schottky diode SR5100 absorbs reverse voltage and protects the driving circuit.

[0008] In addition to the technical problems solved by the utility model, the technical features of the technical scheme and the beneficial effects brought by the technical features, other technical problems solved by the utility model, other technical features contained in the technical scheme and the beneficial effects brought by the technical features will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a structure schematic view (the coil is powered) of an embodiment of the utility model.

[0010] Figure 2 is a structure schematic view (the coil is powered off) of an embodiment of the utility model.

[0011] Figure 3 is a structure schematic view of the driving circuit of an embodiment of the utility model. DETAILED DESCRIPTION

[0012] The utility model will be further explained in detail below by specific implementation mode combined with drawings. It needs to be explained here that the explanation of these implementation modes is used for helping understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each implementation mode of the utility model described below can be combined as long as they do not conflict with each other.

[0013] Referring to Figure 1 and Figure 2 , the gun electric recoil force simulation device is shown in a kind of laser simulation shooting gun inside.The gun electric recoil force simulation device is used to simulate the recoil force generated when shooting gun.

[0014] The gun electric recoil force simulation device includes: device shell 1, magnetic force impact rod 2, reset spring 3, electromagnetic coil and drive circuit etc.

[0015] The device shell 1 is fixedly connected with the barrel mounting wall 4 in front thereof.The barrel mounting wall 4 is part of the laser simulation shooting gun.

[0016] The magnetic force impact rod 2 is inside the device shell 1.The magnetic force impact rod 2 extends along the front and back direction.The front end of the magnetic force impact rod 2 extends forward through the device shell 1 and the barrel mounting wall 4.The front end of the magnetic force impact rod 2 has impact rod head 21.The rear end of the magnetic force impact rod 2 extends backward through the device shell 1.The rear end of the magnetic force impact rod 2 has limit rod shoulder 22.

[0017] The reset spring 3 is outside the device shell 1.The reset spring 3 is around the magnetic force impact rod 2 and between the device shell 1 and the limit rod shoulder 22.

[0018] The electromagnetic coil is inside the device shell 1.The electromagnetic coil is around the magnetic force impact rod 2.The magnetic force generated by the electromagnetic coil drives the impact rod head 21 of the magnetic force impact rod 2 away from the barrel mounting wall, and at this time, the reset spring 3 is in the force storage state.When the electromagnetic coil loses electricity, the reset spring 3 drives the magnetic force impact rod 2 to displace backward until the impact rod head 21 hits the barrel mounting wall.The force generated by the impact rod head 21 hitting the barrel mounting wall 4 is the recoil force.

[0019] In specific implementation, the electromagnetic coil selects enameled wire, diameter is 1.1mm, the number of turns is 187 turns, and resistance value is 0.3269Ω.The purpose is to provide greater instantaneous force value output under 12V voltage.

[0020] In implementation, the device housing 1 is made of aluminum alloy. The device housing 1 and the electromagnetic coil are provided with a silica gel heat conducting layer. The purpose is to reduce the temperature rise of the coil and prevent the electromagnetic coil from working continuously to cause the temperature to be too high.

[0021] In implementation, referring to Figure 3 , the driving circuit 5 is provided with a gate driver TC4420, a MOSFET tube IRFS3207 and a Schottky diode SR5100. The output end of the gate driver TC4420 is connected to the gate of the MOSFET tube IRFS3207. The source of the MOSFET tube IRFS3207 is connected to the ground. The drain of the MOSFET tube IRFS3207 is respectively connected to the positive pole of the Schottky diode SR5100 and one end of the electromagnetic coil 6. The negative pole of the Schottky diode SR5100 is connected to the opposite end of the electromagnetic coil 6. The purpose is to provide a fast response driving circuit and improve the dynamic performance of the electromagnetic coil. Among them, the gate driver TC4420 is a high-speed gate driver, which provides a gate current of up to 6A, ensuring that the MOSFET tube IRFS3207 can be switched quickly. Among them, the MOSFET tube IRFS3207 is a low on-resistance, with an on-resistance of only 3.5mΩ, which can carry large current. Among them, the Schottky diode SR5100 absorbs reverse voltage and protects the driving circuit.

[0022] The above only expresses the implementation mode of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A firearm electric recoil simulation device, characterized in that, include: The device housing, magnetic impact rod, return spring, electromagnetic coil, and drive circuit for driving the electromagnetic coil; The device housing is fixedly connected to the barrel mounting wall in front of it; the magnetic impact rod is inside the device housing, extending in a front-to-back direction, with its front end extending forward through the device housing and the barrel mounting wall, and having an impact rod head at the front end; the rear end of the magnetic impact rod extends backward through the device housing, and has a limiting shoulder at the rear end; the return spring is outside the device housing, surrounding the magnetic impact rod and located between the device housing and the limiting shoulder; the electromagnetic coil is inside the device housing, surrounding the magnetic impact rod; when the electromagnetic coil is energized, the magnetic force generated drives the impact rod head of the magnetic impact rod away from the barrel mounting wall, at which point the return spring is in a charged state; when the electromagnetic coil is de-energized, the return spring drives the magnetic impact rod to move backward until the impact rod head strikes the barrel mounting wall; the device housing is made of aluminum alloy, and a silicone thermal conductive layer is present between the device housing and the electromagnetic coil.

2. The electric recoil simulation device for firearms according to claim 1, characterized in that, The electromagnetic coil is made of enameled wire with a diameter of 1.1 mm, 187 turns, and a resistance of 0.3269 Ω.

3. The electric recoil simulation device for firearms according to claim 1, characterized in that, The driving circuit includes a gate driver TC4420, a MOSFET IRFS3207, and a Schottky diode SR5100. The output terminal of the gate driver TC4420 is connected to the gate of the MOSFET IRFS3207. The source of the MOSFET IRFS3207 is grounded. The drain of the MOSFET IRFS3207 is connected to the positive terminal of the Schottky diode SR5100 and one end of the electromagnetic coil, respectively. The negative terminal of the Schottky diode SR5100 is connected to the opposite end of the electromagnetic coil.

Images