Cold bore alignment system

Abstract

The utility model discloses a cold bore school rifle system, specifically relates to laser induction technical field, including laser transmitter, the laser transmitter front end is equipped with laser emission head, the laser transmitter front end is fixedly connected with rear end through the rotation screw thread, the laser transmitter bottom middle is equipped with the round hole and is installed with the impact trigger switch, the laser transmitter tail end is equipped with the annular groove, the laser transmitter inner chamber cylinder bottom is installed with the battery, and the impulse control circuit and the electric capacity are installed around the cylinder, still include laser induction target board, the laser induction target board includes laser induction target board, triangular support, photoelectric signal converter, wireless transmitter and built -in power supply, the laser induction target board outer layer is laser induction glass, the middle layer is the chest ring target image, and the bottom layer is the support plate. The cold bore school rifle system of the utility model discloses, through the mode of the laser built -in rifle in the bore, can accurate simulation live ammunition trajectory compared with the mode such as external installation laser, and the accuracy is higher.

Description

Technical Field

[0001] This utility model relates to the field of laser sensing technology, and in particular to a cold-bore gun calibration system. Background Technology

[0002] Currently, in the field of small arms calibration and shooting training, live-fire shooting is widely used for weapon calibration and skills training. Traditional calibration methods rely on the actual distribution of bullet impact points on the target surface, manually observing and calculating the deviation between the impact point and the aiming point, and then mechanically adjusting the firearm sights. The existing technology has the following problems: Live-fire exercises consume a large amount of ammunition and involve many aspects such as shooting range setup, security, and target maintenance. The organizational process is complicated, requires a large investment of resources, and is subject to ammunition supply and storage conditions. The process of calibrating a gun usually requires multiple shots, observations, calculations, and adjustments, which is time-consuming and repeated. At the same time, the results are easily affected by the shooter's personal skill level, psychological state, and environmental factors (such as wind and light), which can affect the accuracy and consistency of the calibration. Live-fire shooting has inherent safety risks and must be conducted in a dedicated range with strict safety measures, which limits its flexibility and convenience of application. Most existing shooting simulation training systems use dedicated simulated guns or external laser emission devices. Their operation feel, gun status, and shooting environment differ from those of actual standard weapons, making it difficult to realistically reproduce the ballistic characteristics and recoil sensation of live-fire shooting. This results in a disconnect between the simulation training effect and actual combat application. To overcome these shortcomings, some laser-based simulation training devices have emerged on the market. However, these devices often cannot be directly adapted to standard firearms currently in service with the military, or their laser emission points do not simulate real ballistic trajectories along the barrel axis, resulting in insufficient simulation accuracy and failing to meet the requirements for high-precision gun calibration. Therefore, developing a system that can be directly applied to standard firearms, accurately simulate live-fire trajectories without the need for live ammunition, and is suitable for gun calibration and shooting training has become an urgent technical problem to be solved in this field. Utility Model Content

[0003] The main purpose of this invention is to provide a cold-bore gun calibration system, which can effectively solve the problems of high ammunition consumption, cumbersome maintenance, low efficiency, and poor safety caused by the reliance on live-fire shooting for gun calibration in the existing technology, as well as the problems that existing simulation training systems cannot be directly used on standard firearms and that the simulation accuracy is insufficient, resulting in a disconnect from actual combat.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cold-bore gun calibration system includes a laser emitter. The front end of the laser emitter is equipped with a laser emitting head. The front end and rear end of the laser emitter are fixedly connected by a rotating thread. A circular hole is opened in the middle of the bottom of the laser emitter and an impact trigger switch is installed thereon. An annular groove is provided at the tail end of the laser emitter. A battery is installed at the bottom of the cylindrical body inside the laser emitter. A pulse control circuit and a capacitor are installed around the cylinder.

[0005] Preferably, it also includes a laser-sensing target, which includes a laser-sensing target plate, a triangular bracket, a photoelectric signal converter, a wireless transmitter, and a built-in power supply. The outer layer of the laser-sensing target is laser-sensing glass, the middle layer is a chest ring target image, and the bottom layer is a support plate. The triangular bracket is connected and fixed to the target plate by a buckle at the top of the bracket.

[0006] Preferably, it also includes a display and control tablet, which includes a wireless receiver and built-in software. The built-in software interface displays a reduced chest target pattern, a firearm model selection menu, and a shooting distance selection menu, and has built-in ballistic correction data.

[0007] Preferably, the laser emitter is compatible with 5.8mm, 7.62mm, 8.6mm, 9mm, and 12.7mm firearm calibers and can be loaded into a magazine and chambered through a loading action.

[0008] Preferably, the laser emitter uses an original cartridge case structure, which integrates a battery, pulse control circuit and laser generator.

[0009] Preferably, the surface of the laser-sensing target plate is a laser-sensing panel, which can sense the position of the laser irradiation point and convert the light signal into an electrical signal, which is then transmitted to the display and control tablet via a wireless transmitter.

[0010] Preferably, the built-in software can call up the corresponding ballistic data according to the selected firearm model and shooting distance, correct the ballistic trajectory of the laser irradiation point, and display the simulated live bullet impact point on the reduced chest ring target pattern.

[0011] Preferably, it also includes a storage box for housing the laser emitter, laser sensing target, and display and control panel.

[0012] Preferably, the impact trigger switch connects the circuit when the firing pin of the gun strikes, and the pulse control circuit sends a single pulse signal to the laser emitter, causing the laser emitter to emit a laser beam.

[0013] Preferably, the display and control tablet is a ruggedized tablet computer that supports touch operation and receives position signals sent by the laser-sensing target via a wireless receiver.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a cold-bore gun calibration system, which can more accurately simulate the trajectory of live bullets by using a laser built into the gun barrel, compared with methods such as externally installed lasers.

[0015] 2. This utility model provides a cold-bore gun calibration system, which uses software to embed ballistic parameters for various firearm models at different shooting distances, and is not limited to a single type of firearm, thus having better versatility.

[0016] 3. This utility model provides a cold-bore gun calibration system, which can calibrate both mechanical sights and optical sights, and can also be used for shooting training. It is simple, portable, and adaptable to various usage environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the automatic gun-calibrating system without live ammunition of this utility model; Figure 2 This is a schematic diagram of the support structure of this utility model; Figure 3 This is a schematic diagram of the photoelectric target of this utility model; Figure 4 This is a schematic diagram of the portable shooter terminal of this utility model.

[0018] In the diagram: 1. Laser emitter; 2. Front end of laser emitter; 3. Rear end of laser emitter; 4. Rotary screw fastening device for front and rear ends of laser emitter; 5. Front laser emitting head; 6. Impact trigger switch at the rear end of laser emitter; 7. Annular groove at the tail end of laser emitter; 8. Battery; 9. Pulse control circuit; 10. Capacitor; 11. Laser sensing target; 12. Laser sensing target plate; 13. Photoelectric signal converter; 14. Wireless transmitter; 15. Power supply; 16. Outer laser sensing glass; 17. Middle layer chest ring target image; 18. Bottom support plate; 19. Triangular bracket; 20. Bracket fixing buckle; 21. Display and control tablet; 22. Wireless receiver; 23. Built-in software; 24. Interface for reducing chest ring target image; 25. Model selection menu; 26. Distance selection menu. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] The core of this system lies in its use of a laser sensing system that simulates the trajectory of live ammunition, enabling precise firearm calibration and shooting training without the need for live ammunition. Figures 1 to 4 As shown, the cold-bore gun calibration system provided by this utility model mainly consists of four parts working together: a bullet-shaped laser emitter, a laser-sensing target, a display and control tablet, and a storage box.

[0021] Example 1 like Figure 1 and Figure 2 As shown, the laser emitter 1 is the core firing unit of the system. Its shape and structure are designed to mimic live ammunition to ensure that its feeding, loading, firing, and ejection processes in the firearm are consistent with actual shooting. The laser emitter 1 consists of a laser emitter front end 2 and a laser emitter rear end 3 connected and fixed by a precision rotating screw fixing device 4, forming a sealed cylinder. This outer shell can be made of steel to ensure its mechanical strength at the moment of firing. The rear end has an annular groove 7 for cooperating with the firearm's ejection mechanism. A rechargeable battery 8 is installed at the bottom of the inner cavity of the laser emitter 1 as a power source, and a pulse control circuit is installed around the inner wall. 9 and its matching capacitor 10 have an integrated laser generator at the front end, with the front laser emitter 5 located at the very front. At the bottom center of the laser emitter 1, there is a circular hole and a rear impact trigger switch 6 is installed. This switch is an inertial mechanical switch or a pressure-sensitive switch, which is normally in the open state. When the firing pin of the firearm strikes the rear impact trigger switch 6 of the laser emitter with sufficient force, the switch closes instantly, connecting the entire circuit. To adapt to various types of firearms currently in service with the military, the laser emitter 1 is manufactured in various calibers such as 5.8mm, 7.62mm, 8.6mm, 9mm, and 12.7mm, which can be directly pressed into the magazines of the corresponding firearms.

[0022] like Figure 3 As shown, the laser-sensing target 11 is responsible for receiving and locating laser signals and completing data conversion and transmission. The laser-sensing target 11 adopts a three-layer composite structure. The outermost layer is a high-transmittance, high-sensitivity outer laser-sensing glass 16, used to receive laser signals; the middle layer is a layer printed with a standard middle layer chest ring target image 17; the bottom layer is a sturdy bottom support plate 18, which provides rigid support for the entire target surface. A circuit module, including a photoelectric signal converter 13, a wireless transmitter 14, and a power supply 15, is integrated behind or to the side of the bottom support plate 18. The target is mounted on a telescopic and height-adjustable triangular bracket 19 by a bracket fixing buckle 20, which facilitates stable placement under different terrain and height requirements.

[0023] like Figure 4 As shown, the display and control tablet 21 is the human-computer interaction and data processing center of the system. The display and control tablet 21 is a ruggedized military tablet computer with a touch screen. It has a built-in wireless receiver 22 and a high-gain antenna for receiving signals sent by the target. The tablet is pre-installed with dedicated built-in software 23. The software interface displays a scaled-down chest ring target pattern interface 24. The interface also provides a model selection menu 25 and a distance selection menu 26. The core of the software is a built-in database containing ballistic data of various types of firearms at different distances.

[0024] Example 2 The complete workflow of this cold-bore gun calibration system clearly demonstrates the entire process from simulated firing to result display: Step 1: System Preparation and Setup Select the corresponding laser emitter 1 according to the caliber of the firearm to be calibrated; press the laser emitter 1 into the firearm magazine and push it into the chamber through the normal loading action, at which point the laser emitter is in the ready-to-fire state; set up the laser sensing target 11 at the predetermined shooting position and ensure that its power supply 15 is turned on; turn on the display and control tablet 21, and select the firearm model and shooting distance to be used in this training or calibration on the built-in software 23 interface.

[0025] Step 2: Simulated firing and laser emission The shooter, as with normal shooting, uses the rifle's mechanical sights or optical scope to aim at the image 17 of the middle layer chest ring target on the laser-sensing target 11; pulling the trigger causes the firing pin to move forward, violently striking the laser emitter 1 at the rear end of the laser emitter impact trigger switch 6; the laser emitter impact trigger switch 6 is pressed shut, instantly connecting the power supply circuit consisting of battery 8, pulse control circuit 9, and capacitor 10. The pulse control circuit 9 is designed to output a single, stable high-voltage pulse signal to the laser generator within a very short time after the circuit is connected; upon receiving the pulse signal, the laser generator immediately emits an extremely fine, collimated laser beam through the front laser emitter head 5. This laser beam is emitted along the barrel axis and flies towards the distant laser-sensing target 11; after firing, by pulling back the bolt, the laser emitter 1 is ejected from the ejection port by the ejection mechanism, completing one firing cycle.

[0026] Step 3: Signal Sensing and Data Transmission The laser beam illuminates the outer laser sensing glass 16 of the laser sensing target 11; the outer laser sensing glass 16 accurately senses the two-dimensional coordinate position of the laser spot, namely the X and Y coordinates, and transmits the light signal to the photoelectric signal converter 13; the photoelectric signal converter 13 converts the position information of the spot into a digital electrical signal; the electrical signal is transmitted in real time by the wireless transmitter 14 to the remote display and control tablet 21 via Wi-Fi or a dedicated radio frequency band.

[0027] Step 4: Ballistic Correction and Result Display The wireless receiver 22 of the display and control tablet 21 receives the original position data of the laser spot sent by the target; the built-in software 23 calls the background database, which finds the corresponding ballistic correction data according to the firearm model and shooting distance previously set by the user; the built-in software 23 runs the ballistic algorithm, compensates and corrects the coordinates of the received laser direct point according to the ballistic law of live bullets, and calculates where the actual bullet impact point should be at the set distance if it is a live bullet shot; finally, this simulated live bullet impact point after ballistic correction is clearly displayed in the corresponding position on the reduced chest ring target pattern interface 24 on the screen of the built-in software 23. The software usually displays it with a conspicuous mark and the text "Xth shot".

[0028] After the shooter fires, they observe the simulated bullet impact point displayed on the control panel. If the bullet impact point deviates from the aiming point, the sights of the firearm are adjusted accordingly based on the direction and magnitude of the deviation. This process is repeated until the simulated bullet impact point coincides with the aiming point, thus completing the gun calibration. It can be used for basic aiming and firing training, precision shooting training, and training to quickly familiarize oneself with the ballistic characteristics of firearms at different distances. All processes involve no ammunition consumption and no safety risks.

[0029] The working principle of this cold-bore gun calibration system will be explained in detail below.

[0030] like Figure 1-4 As shown, firstly, the user selects the corresponding laser emitter 1 according to the firearm caliber, loads it into the magazine and chambers a round, and simultaneously sets up the laser-sensing target 11. The user then selects the firearm model and firing distance on the display and control tablet 21. Upon firing, the firing pin strikes the laser emitter 1 at its rear end, triggering the trigger switch 6 and the pulse control circuit 9, causing the front laser emitter head 5 to emit a laser beam. After the laser beam hits the outer laser-sensing glass 16 of the laser-sensing target 11, the photoelectric signal converter 13 converts the spot position into an electrical signal, which is then transmitted to the display and control tablet 21 by the wireless transmitter 14. Finally, the built-in software 23 of the display and control tablet 21 corrects the received laser position based on the ballistic data of the selected firearm and distance, and displays the simulated live-fire impact point on the reduced chest ring target pattern interface 24, thus completing precision firearm calibration or shooting training without live ammunition.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cold-bore gun straightening system, including a laser emitter (1), characterized in that: The laser emitter (1) has a front laser emitter head (5) at the front end. The front end (2) of the laser emitter and the rear end (3) of the laser emitter are fixedly connected by a rotating screw fixing device (4) for the front end and the rear end of the laser emitter. A circular hole is opened in the middle of the bottom of the laser emitter (1) and a laser emitter rear end impact trigger switch (6) is installed. The tail end of the laser emitter (1) has a laser emitter tail end annular groove (7). A battery (8) is installed at the bottom of the inner cylinder of the laser emitter (1). A pulse control circuit (9) and a capacitor (10) are installed around the cylinder.

2. The cold-bore gun straightening system according to claim 1, characterized in that: It also includes a laser-sensing target plate (11), which includes a laser-sensing target plate (12), a triangular bracket (19), a photoelectric signal converter (13), a wireless transmitter (14), and a power supply (15). The outer layer of the laser-sensing target plate (11) is an outer laser-sensing glass (16), the middle layer is a middle layer chest ring target image (17), and the bottom layer is a bottom support plate (18). The triangular bracket (19) is connected and fixed to the target plate through a bracket fixing buckle (20).

3. The cold-bore gun straightening system according to claim 1, characterized in that: It also includes a display and control tablet (21), which includes a wireless receiver (22) and built-in software (23). The built-in software (23) displays a reduced chest ring target pattern interface (24), a model selection menu (25), and a distance selection menu (26), and has built-in ballistic correction data.

4. The cold-bore gun straightening system according to claim 1, characterized in that: The laser emitter (1) is compatible with 5.8mm, 7.62mm, 8.6mm, 9mm and 12.7mm firearm calibers, and can be pressed into the magazine and loaded into the chamber.

5. The cold-bore gun straightening system according to claim 1, characterized in that: The laser emitter (1) uses the original cartridge structure and integrates a battery (8), a pulse control circuit (9) and a laser generator.

6. The cold-bore gun straightening system according to claim 2, characterized in that: The surface of the laser sensing target plate (12) is a laser sensing panel, which can sense the position of the laser irradiation point and convert the light signal into an electrical signal, which is then transmitted to the display and control tablet (21) via a wireless transmitter (14).

7. The cold-bore gun straightening system according to claim 3, characterized in that: The built-in software (23) can call up the corresponding ballistic data according to the selected firearm model and shooting distance, correct the ballistics of the laser irradiation point, and display the simulated live bullet impact point on the reduced chest ring target pattern interface (24).

8. The cold-bore gun straightening system according to claim 1, characterized in that: It also includes a storage box for housing the laser emitter (1), the laser sensing target (11), and the display and control panel (21).

9. The cold-bore gun straightening system according to claim 1, characterized in that: The impact trigger switch (6) at the rear end of the laser emitter is connected when the firing pin of the gun is struck, and the pulse control circuit (9) sends a single pulse signal to the front laser emitter (5), and the front laser emitter (5) emits a laser beam.

10. The cold-bore gun straightening system according to claim 3, characterized in that: The display and control tablet (21) is a ruggedized tablet computer that supports touch operation and receives the position signal sent by the laser sensing target (11) through the wireless receiver (22).

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