A gun alignment device

Abstract

The utility model relates to the field of gun calibration, especially a gun calibration device, the gun calibration device includes the gun to be calibrated, the front end of the gun to be calibrated is provided with the barrel, the upper end is successively installed with the sight and the foresight, still includes: the gun calibration device, the gun calibration device is composed of fixed bolster, mandrel and calibration spare, the mandrel is detachably connected on the barrel, the calibration spare includes the parallel light pipe, the parallel light pipe is provided with the crosshair scale board inside, and is equipped with independent power supply, the gun calibration device provided by the utility model has no requirement to the shooting experience of the shooter, has strong applicability, has no requirement to the gun calibration ground and the external environment, can carry out calibration in real time and in situ, does not need to shoot, has strong concealment, saves the bullet resource, has high calibration precision, can effectively reduce the gun calibration time, the gun calibration time can be controlled in 5~10 minutes, and can be controlled in 5 minutes after being skilled to complete.

Description

Technical Field

[0001] This utility model relates to the field of firearm calibration, and in particular to a firearm calibration device. Background Technology

[0002] The firearm is designed with a rear sight and a front sight. When shooting, the shooter's eye connects the front sight, the target object, and the target object in a straight line through a small hole in the rear sight to hit the target.

[0003] In military training, firearm disassembly and assembly are fundamental training exercises, and maintenance is also a periodic activity. These training and maintenance operations all involve the disassembly and installation of firearms. If the barrel, stock, front sight, rear sight, and other components are not installed precisely in their original positions during assembly, it will introduce firing errors and affect shooting accuracy. Furthermore, during armed cross-country runs and marches, troops may encounter collisions with the firearm's front sight, barrel, rear sight, etc., which will also affect shooting accuracy. Therefore, troops frequently need to conduct regular or irregular firearm calibrations. Currently, firearms calibration in the military is done through hot-fire calibration. During calibration, the shooter must fire at a target at 100 meters at least three times. The distribution of bullet holes is used to analyze the deviation between the barrel center and the front sight. This deviation data is then processed to guide the shooter in calibrating the firearm's front sight. This process involves repeated firing after each calibration, a gradual approach that takes a long time—often more than 0.5 hours per rifle—consuming ammunition resources. Furthermore, the calibration process requires firing and lacks concealment.

[0004] Therefore, a utility model device that can quickly calibrate firearms is essential.

[0005] Based on the above analysis, the problems and shortcomings of the existing technology are as follows: (1) Shooters rely on experience to calibrate their guns, which requires a high level of skill from the shooter and is also affected by subjective factors such as the shooter's personal habits, and therefore lacks versatility. (2) The shooter calibrates the gun by firing blindly to observe the bullet impact point and gradually approaching the target after multiple consecutive shots. This results in a large consumption of bullets and wear and tear on the gun, wasting military resources. (3) The gun calibration time is more than 0.5 hours, which is too long and consumes a lot of the soldiers' energy.

[0006] Therefore, it is necessary to provide a new gun calibration device to solve the above-mentioned technical problems. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides a gun calibration device.

[0008] The gun calibration device provided by this utility model includes a gun to be calibrated, a barrel is provided at the front end of the gun to be calibrated, and a rear sight and a front sight are sequentially installed at the upper end, and also includes: A gun calibration device, which consists of a fixed bracket, a spindle, and calibration components; The mandrel can be detachably connected to the gun barrel; The calibration device includes a collimator with a crosshair reticle inside and an independent power supply.

[0009] Preferably, the fixed bracket includes a vertical frame, and a mounting base is bolted to one side of the vertical frame near the bottom. An assembly hole is provided on one side of the mounting base, and a tightening screw that can pass into the assembly hole is threaded onto the mounting base. A horizontal frame is bolted to the side of the vertical frame near the top, and the horizontal frame also has integrally connected reinforcing ribs.

[0010] Preferably, the mandrel has an assembly section and an installation section, the assembly section and the installation section are integrally connected spring steel, and the diameter of the assembly section is smaller than the diameter of the installation section; The assembly section can be inserted into the gun barrel, while the mounting section is inserted into the assembly hole and fixed by tightening screws.

[0011] Preferably, one end of the assembly section is also fixed with an assembly boss, which is made of flexible material and has a diameter slightly larger than the inner diameter of the gun barrel, so as to achieve an interference fit connection with the gun barrel.

[0012] Preferably, a rear lens and a front lens are respectively provided at both ends of the collimator, and a lens cover is provided at the rear lens. An adjustment knob is also installed on the collimator.

[0013] Preferably, the collimator is a visible light source with a focal length of 50mm, and the rear and front lenses at both ends are high-transmittance lenses to clearly observe the reticle lines.

[0014] Preferably, the style, brightness, and color of the crosshair reticle are all adjustable.

[0015] Preferably, the center of the crosshairs generated by the collimator and the center of the mandrel intersect at a position 100 meters from the muzzle of the gun barrel.

[0016] Preferably, the power source for the collimator is a battery.

[0017] Compared with related technologies, the gun calibration device provided by this utility model has the following beneficial effects: 1. This gun-calibrating device requires no shooting experience from the shooter and is highly applicable.

[0018] 2. This gun calibration device has no requirements for the calibration site or external environment and can be calibrated in real time on-site.

[0019] 3. This gun-calibrating device eliminates the need for firing a shot at a target, is highly concealed, and saves ammunition resources.

[0020] 4. This gun calibration device has high calibration accuracy.

[0021] 5. The gun calibration device can effectively reduce the gun calibration time, which can be controlled to about 5 to 10 minutes. With practice, it can be completed in less than 5 minutes.

[0022] 6. The gun-calibrating device is easy to operate and can further improve the shooting accuracy of firearms. Attached Figure Description

[0023] Figure 1 A schematic diagram of a preferred embodiment of the gun-calibrating device provided by this utility model; Figure 2 This is a schematic diagram of the gun-calibrating device shown in this utility model; Figure 3 This is a schematic diagram of the structure of the fixed bracket shown in this utility model; Figure 4 This is a schematic diagram of the mandrel structure shown in this utility model; Figure 5 This is a schematic diagram of the structure of the calibration component shown in this utility model.

[0024] The following are the labels in the diagram: 1. Firearm to be calibrated; 11. Barrel; 2. Rear sight; 3. Front sight; 4. Calibration device; 41. Fixed bracket; 411. Vertical frame; 412. Mounting base; 413. Assembly hole; 414. Tightening screw; 415. Horizontal frame; 416. Reinforcing rib; 42. Spindle; 421. Assembly section; 422. Mounting section; 423. Assembly boss; 43. Calibration component; 431. Collimator; 432. Rear lens; 433. Front lens; 434. Adjustment knob; 435. Lens cap; 5. Target plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 5This utility model provides a gun calibration device, which includes a gun to be calibrated 1. The gun to be calibrated 1 has a barrel 11 at its front end and a rear sight 2 and a front sight 3 installed sequentially at its upper end. It also includes: The gun calibration device 4 consists of a fixed bracket 41, a spindle 42, and a calibration component 43.

[0028] It should be noted that the gun calibration device 4 has a quick-release feature, which makes it more convenient to use and can improve the efficiency of gun calibration. At the same time, the gun calibration device 4 is used in conjunction with the rear sight 2 and the front sight 3 to ensure calibration accuracy.

[0029] For fixed bracket 41; Please see Figure 3 The fixed bracket 41 includes a vertical frame 411. A mounting base 412 is bolted to one side of the vertical frame 411 near the bottom. An assembly hole 413 is provided on one side of the mounting base 412. A tightening screw 414 that can pass into the assembly hole 413 is threaded onto the mounting base 412. A horizontal frame 415 is bolted to the side of the vertical frame 411 near the top, and the horizontal frame 415 also has an integrally connected reinforcing rib 416.

[0030] It should be noted that the fixed bracket 41 is the basic support structure, and its overall design is modular, that is, it includes a vertical frame 411, a mounting base 412, and a horizontal frame 415. The vertical frame 411 is a connecting plate, the mounting base 412 is used to install and fix the spindle 42, and the horizontal frame 415 is used to install and fix the calibration piece 43, making the whole device more compact. At the same time, the modular design allows it to be disassembled for easy carrying.

[0031] For spindle 42; Please see Figure 4 The spindle 42 has an assembly section 421 and an installation section 422. The assembly section 421 and the installation section 422 are spring steel integrally connected, and the diameter of the assembly section 421 is smaller than the diameter of the installation section 422. The assembly section 421 can be inserted into the barrel 11, and an assembly boss 423 is fixed at this end. The mounting section 422 is inserted into the assembly hole 413 and fixed by tightening screws 414.

[0032] It should be noted that the spindle 42 is a single rod made of spring steel. The spring steel is heat-treated and its surface hardness is tempered to 41-45 HRC, which is less than the 55 HRC of the rifling of the barrel 11. This ensures its stable rigidity without damaging the barrel 11. The mandrel 42 has an assembly section 421 and a mounting section 422, the diameter of which is larger than that of the assembly section 421. The assembly section 421 is used to install on the barrel 11 so that the entire gun-fixing device 4 can be stably fixed on the firearm. That is, the diameter of the assembly section 421 is smaller than the inner diameter of the barrel 11, so it can be directly inserted into the barrel 11. In order to further increase the stable assembly with the barrel 11, an assembly boss 423 is provided at one end of the assembly section 421. The assembly boss 423 is made of flexible material and its diameter is slightly larger than the inner diameter of the barrel 11, so it can achieve an interference fit with the barrel 11 to limit the radial floating of the assembly section 421 inside the barrel 11. To reduce assembly difficulty, the insertion end of the assembly boss 423 can be provided with a 45° chamfer structure, so that it has a certain guiding effect when the assembly section 421 is inserted into the barrel 11. The mounting section 422 also serves as a positioning element for the installation between the assembly section 421 and the barrel 11. Specifically, the diameter of the mounting section 422 is larger than the inner diameter of the barrel 11, and the connection point with the assembly section 421 is conical. Therefore, after the assembly section 421 is fully inserted into the barrel 11, the mounting section 422 will eventually abut against the muzzle of the barrel 11. At this time, the spindle 42 and the barrel 11 are in a cylindrical state. Thus, while ensuring that the device has a stable load-bearing capacity, it can also avoid damage to the firearm itself. In conjunction with the mounting boss 423, the axial floating of the spindle 42 is limited, which greatly improves the stability and installation accuracy of the spindle 42. Meanwhile, the mounting section 422 is used to be mounted on the mounting base 412. That is, one end of the mounting section 422 can be inserted into the assembly hole 413. At the same time, the screw 414 is rotated and tightened to make it press against the mounting section 422, so that the mounting section 422 and the mounting base 412 are stably connected.

[0033] For calibration piece 43; Please see Figure 5 The calibration component 43 includes a collimator 431, which is fixed on the crossbeam 415. The collimator 431 has a cross reticle inside. A rear lens 432 and a front lens 433 are respectively provided at both ends of the collimator 431. A lens cap 435 is provided at the rear lens 432. An adjustment knob 434 is also installed on the collimator 431.

[0034] It should be noted that: In the calibration component 43, the collimator 431 is the main structure. It is a special collimator. The collimator 431 is directly fixed on the crossbeam 415. Both ends are equipped with lens structures for observation. A cross reticle is set inside the collimator 431. The center point of the cross reticle is the calibration center. The collimator 431 uses a visible light illuminator and its optical system has a fixed focal length of 50 mm. This focal length parameter is key to achieving fast and convenient calibration. That is, the shorter focal length makes the collimator 431 more compact and the overall device small and lightweight. At the same time, the 50 mm focal length is sufficient to provide a generous eyepoint distance at the exit pupil, which allows the calibration personnel to quickly close and observe without having to precisely locate the eyepiece position. To achieve clear imaging, the collimator 431 uses a group of optical lenses with high transmittance and low dispersion. The surfaces of these lenses are coated with anti-reflection films, which can reduce the reflection loss and stray light interference during the transmission process, and ensure that the light emitted from the reticle forms a parallel beam with extremely high efficiency and fidelity. The crosshair pattern of this reticle is adjustable or replaceable; that is, its style, brightness, and color can be adjusted by adjusting knob 434. For its style adjustment, it can switch between different styles of reticle (such as simple crosshairs, crosshairs with dense dots, and crosshairs of different thicknesses). Throughout the adjustment process, the center point of the crosshair style always coincides with the optical axis of the optical system. Therefore, no matter which auxiliary line style the user selects, its calibration reference remains unchanged to eliminate the reference error introduced by changing the reticle style and ensure its adjustment accuracy. For brightness adjustment, an adjustable lighting component (such as an LED) needs to be added inside the collimator 431 to illuminate the crosshair reticle; an adjustment switch can be added outside the collimator 431 to adjust the light intensity of the LED linearly or in increments. Therefore, the crosshair reticle can maintain a clean and bright state when used in environments with different light intensities, thus improving the applicability of the device. For color adjustment, it can be achieved by using LEDs with red, green and blue colors as the light source and corresponding color control circuits. This allows operators to select red, green, blue or other mixed colors as the display color of the crosshair according to personal preferences or specific environmental backgrounds, so as to alleviate visual fatigue of debugging personnel and reduce human error factors. The collimator 431 has an independent power supply, which is a CR2032 battery. The battery can be replaced at any time, making it simple to operate and easy to carry. In terms of calibration, the center of the crosshair generated by the collimator 431 and the center of the mandrel 42 intersect at 100 meters. Therefore, the target plate 5 used for auxiliary adjustment can be set at 100 meters.

[0035] The device is used in the following specific way: (in conjunction with...) Figure 1As shown, a chest ring target plate 5 is placed at a distance of 100 meters. With the mandrel 42 as the reference, the center of the crosshair image is observed through a dedicated collimator 431. The size of the θ angle is adjusted so that the optical axis of the aiming device 4 (the center of the crosshair of the collimator 431 reticle) always coincides with the center of the target plate 5. At this moment, the optical axis of the aiming device 4 represents the direction of the barrel 11, converting the invisibility of the barrel 11 into visibility, providing a target reference for the next step of calibrating the sight 3. Subsequently, calibration can be completed simply by adjusting the up and down and left and right movements of the sight 3 on the firearm to make them coincide.

[0036] During the calibration process, the shooter inserts the spindle 42 of the device into the barrel 11 of the gun to be calibrated, opens the lens cover 435 of the calibration device 4, and rotates the adjustment knob 434. A crosshair image appears on the collimator 431. The shooter then passes the rear sight 2, the front sight 3, and the center point of the crosshair image through their eye, aligning the center of the rear sight 2 with the center point of the crosshair image (two points in a line). The shooter then observes whether the position of the front sight 3 is on the line connecting the rear sight 2 and the center of the crosshair. If it is, the position of the front sight 3 is good and no calibration is needed. If it is not, the shooter needs to use tools to adjust the up-down and left-right movement of the front sight 3 to align it with the line. The entire calibration process can be completed within 5 to 10 minutes.

[0037] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gun calibration device, comprising a firearm to be calibrated (1), wherein a barrel (11) is provided at the front end of the firearm to be calibrated (1), and a rear sight (2) and a front sight (3) are sequentially installed at the upper end, characterized in that, Also includes: The gun calibration device (4) consists of a fixed bracket (41), a spindle (42), and a calibration component (43); The spindle (42) is detachably connected to the barrel (11); The calibration component (43) includes a collimator (431), which has a cross reticle inside and is equipped with an independent power supply.

2. The gun-calibrating device according to claim 1, characterized in that, The fixed bracket (41) includes a vertical frame (411), and a mounting base (412) is bolted to one side of the vertical frame (411) and near the bottom. An assembly hole (413) is provided on one side of the mounting base (412), and a tightening screw (414) that can be inserted into the assembly hole (413) is threaded onto the mounting base (412). The vertical frame (411) is bolted to a horizontal frame (415) on the same side and near the top, and the horizontal frame (415) also has an integrally connected reinforcing rib (416).

3. The gun-calibrating device according to claim 1, characterized in that, The mandrel (42) has an assembly section (421) and an installation section (422), the assembly section (421) and the installation section (422) are integrally connected spring steel, and the diameter of the assembly section (421) is smaller than the diameter of the installation section (422); The assembly section (421) can be inserted into the barrel (11), while the mounting section (422) is inserted into the assembly hole (413) and fixed by tightening the screw (414).

4. The gun-calibrating device according to claim 3, characterized in that, One end of the assembly section (421) is also fixed with an assembly boss (423). The assembly boss (423) is made of flexible material and its diameter is slightly larger than the inner diameter of the gun barrel (11) to achieve an interference fit connection with the gun barrel (11).

5. The gun-calibrating device according to claim 1, characterized in that, The collimator (431) is provided with a rear lens (432) and a front lens (433) at both ends, and a lens cap (435) is provided at the rear lens (432). An adjustment knob (434) is also installed on the collimator (431).

6. The gun-calibrating device according to claim 5, characterized in that, The collimator (431) emits visible light and has a focal length of 50mm. The rear lens (432) and front lens (433) at both ends are high-transmittance lenses to clearly observe the lines on the crosshair.

7. The gun-calibrating device according to claim 6, characterized in that, The style, brightness, and color of the crosshair can all be adjusted.

8. The gun-calibrating device according to claim 7, characterized in that, The center of the crosshairs generated by the collimator (431) and the center of the spindle (42) intersect at a position 100 meters away from the muzzle of the barrel (11).

9. The gun-calibrating device according to claim 7, characterized in that, The power source for the parallel light tube (431) is a battery.

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