Portable precise gun calibration instrument

Abstract

The utility model discloses a portable precise rifle calibration instrument, which relates to the technical field of the structure of an instrument for calibrating the front sight and the aperture of an automatic rifle, and comprises a fixed clamping plate and a movable clamping plate, a bolt is rotatably arranged in the fixed clamping plate, the threaded section of the bolt leftwards penetrates through the fixed clamping plate, and the extending end of the bolt is in threaded connection with the movable clamping plate; a square hole is formed in the end face of the fixed clamping plate. A second boss is fixedly arranged on the left end face of the movable clamping plate, a horizontal through hole penetrating through the right end face of the movable clamping plate is formed in the left end face of the second boss, and a second dial is rotationally installed on the second boss. The precise gun calibration instrument further comprises an adjusting wrench, a shifting fork is arranged at the bottom of the adjusting wrench, and a handle and a pointer are fixedly arranged at the upper end of the adjusting wrench. The utility model has the beneficial effects that the calibration efficiency of the alignment star and the aperture is improved, and the calibration precision is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of the structure of an instrument for correcting the front sight and peep sight of an automatic rifle, and in particular a portable precision rifle straightening device. Background Technology

[0002] Firearms are the most widely used light weapons in military equipment, with the Type 191 automatic rifle being the most common. The mechanical aiming of this automatic rifle is achieved through the cooperation of the front sight and the peep sight. After a period of long-term use, wear of the rifling or changes in the environment can cause the automatic rifle to become less accurate. Therefore, in order to ensure the accuracy of the rifle, the front sight and the peep sight of the automatic rifle need to be calibrated regularly.

[0003] Currently, a certain military unit uses adjustment wrenches to adjust the front sight and peep sight of automatic rifles. During adjustment, the operator uses the wrench to rotate the front sight and peep sight adjustment mechanisms of the automatic rifle separately to complete the adjustment. However, each time, the operator can only rely on experience to rotate the adjustment wrench, and the rotation angle cannot be controlled. This results in the need to repeatedly rotate the front sight or peep sight adjustment mechanisms to complete the adjustment, which not only reduces the efficiency of front sight and peep sight adjustment but also has the technical defect of low adjustment accuracy.

[0004] Therefore, there is an urgent need for a portable precision gun calibrator that can improve the efficiency and accuracy of aiming star and peephole calibration. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a portable precision gun calibrator that improves the efficiency and accuracy of the alignment of the sight and the peephole.

[0006] The purpose of this utility model is achieved through the following technical solution: a portable precision gun aiming device, which includes a fixed clamp plate and a movable clamp plate. A bolt is rotatably installed inside the fixed clamp plate. The threaded section of the bolt passes through the fixed clamp plate to the left, and the extended end is threadedly connected to the movable clamp plate. A square hole is opened on the end face of the fixed clamp plate, and a threaded hole is opened on the side wall of the square hole. A locking screw is threadedly connected inside the threaded hole.

[0007] A sliding assembly is provided between the movable clamping plate and the fixed clamping plate. The sliding assembly includes a guide rod, a fixed block and a rectangular strip that are sequentially fixed together from left to right. The guide rod slides to the left through the movable clamping plate. The rectangular strip slides into the square hole. A first protrusion is fixed on the top surface of the fixed block. A vertical through hole is opened on the top surface of the first protrusion and penetrates the bottom surface of the fixed block. A first scale is rotatably mounted on the first protrusion.

[0008] A second protrusion is fixed on the left end face of the moving clamp plate. A horizontal through hole is opened on the left end face of the second protrusion, penetrating the right end face of the moving clamp plate. A second scale is rotatably mounted on the second protrusion. The precision gun calibrator also includes an adjustment wrench. A fork is opened at the bottom of the adjustment wrench. A handle and a pointer are fixed at the upper end of the adjustment wrench. The pointer is located below the handle and is perpendicular to the adjustment wrench.

[0009] Both the fixed clamping plate and the movable clamping plate are L-shaped.

[0010] The movable clamping plate has a guide hole, and the guide rod of the sliding assembly slides in conjunction with the guide hole.

[0011] The square hole is located on the back side of the bolt.

[0012] The diameter of the vertical through hole in the first boss is equal to the diameter of the adjusting wrench, and the diameter of the horizontal through hole in the second boss is equal to the diameter of the adjusting wrench.

[0013] The adjusting wrench has a pin hole arranged radially therein, and the pointer is interference-fitted with the pin hole.

[0014] This invention has the following advantages: it improves the efficiency of alignment of the alignment star and the peephole, and improves the accuracy of the alignment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 An explosion diagram;

[0017] Figure 3 This is a schematic diagram of the fixed clamping plate.

[0018] Figure 4 A schematic diagram of the movable clamping plate;

[0019] Figure 5 This is a schematic diagram of the sliding component.

[0020] Figure 6 A diagram showing the connection between the wrench, pointer, and handle;

[0021] In the picture:

[0022] 1-Fixed clamping plate, 2-Modible clamping plate, 3-Bolt, 4-Square hole, 5-Threaded hole, 6-Locking screw;

[0023] 7-Guide rod, 8-Fixing block, 9-Rectangular strip, 10-First boss, 11-Vertical through hole, 12-First dial, 13-Second boss, 14-Horizontal through hole, 15-Second dial, 16-Adjusting wrench, 17-Handle, 18-Pointer, 19-Guide hole. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0025] like Figures 1-6 As shown, a portable precision gun-calibrating device includes a fixed clamping plate 1 and a movable clamping plate 2. A bolt 3 is rotatably installed inside the fixed clamping plate 1. The threaded section of the bolt 3 passes through the fixed clamping plate 1 to the left, and its extended end is threadedly connected to the movable clamping plate 2. A square hole 4 is provided on the end face of the fixed clamping plate 1. The square hole 4 is located behind the bolt 3. A threaded hole 5 is provided on the side wall of the square hole 4. A locking screw 6 is threadedly connected inside the threaded hole 5. Both the fixed clamping plate 1 and the movable clamping plate 2 are L-shaped.

[0026] A sliding assembly is provided between the movable clamping plate 2 and the fixed clamping plate 1. The sliding assembly includes a guide rod 7, a fixing block 8, and a rectangular strip 9 that are sequentially fixed together from left to right. The guide rod 7 slides to the left through the movable clamping plate 2. The rectangular strip 9 slides with the square hole 4. A first boss 10 is fixed on the top surface of the fixing block 8. A vertical through hole 11 is opened on the top surface of the first boss 10, penetrating the bottom surface of the fixing block 8. A first scale 12 is rotatably mounted on the first boss 10. A guide hole 19 is opened in the movable clamping plate 2. The guide rod 7 of the sliding assembly slides with the guide hole 19.

[0027] A second protrusion 13 is fixedly provided on the left end face of the movable clamping plate 2. A horizontal through hole 14 penetrating the right end face of the movable clamping plate 2 is provided on the left end face of the second protrusion 13. A second scale 15 is rotatably mounted on the second protrusion 13. The precision gun calibrator also includes an adjusting wrench 16. A fork is provided at the bottom of the adjusting wrench 16. A handle 17 and a pointer 18 are fixedly provided at the upper end of the adjusting wrench 16. The pointer 18 is located below the handle 17 and is perpendicular to the adjusting wrench 16.

[0028] The diameter of the vertical through hole 11 in the first boss 10 is equal to the diameter of the adjusting wrench 16, and the diameter of the horizontal through hole 14 in the second boss 13 is equal to the diameter of the adjusting wrench 16. The adjusting wrench 16 has a pin hole arranged radially therein, and the pointer 18 is interference-fitted with the pin hole.

[0029] The specific steps for calibrating the front sight of an automatic rifle are as follows:

[0030] S1. Workers use special tools to measure the deflection angle of the front sight on the automatic rifle in advance;

[0031] S2. The worker places the moving plate 2 and the fixed plate 1 of the precision rifle straightener on the left and right sides of the front sight of the automatic rifle, respectively. Then the worker tightens the screw head of the bolt 3. With the cooperation of the threaded section of the bolt 3 and the moving plate 2, the moving plate 2 moves towards the fixed plate 1. After tightening the screw head of the bolt 3 a certain number of turns, the front sight of the automatic rifle is just clamped and fixed between the moving plate 2 and the fixed plate 1.

[0032] S3. The worker slides the guide rod 7 to the left or right. The guide rod 7 drives the first boss 10 and the rectangular strip 9 to move to the left or right simultaneously. When the vertical through hole 11 in the first boss 10 is observed to move directly above the sight adjustment structure of the automatic rifle, the worker stops sliding the guide rod 7. Then the worker tightens the locking screw 6, which locks the rectangular strip 9 onto the fixed clamp 1.

[0033] S4. The worker inserts the fork of the adjusting wrench 16 from top to bottom through the vertical through hole 11 inside the first boss 10, as follows: Figure 1 As shown, the adjustment wrench's fork is engaged with the sight adjustment mechanism; then the worker rotates the first dial 12, causing the first dial 12 to rotate around the axis of the first boss 10. When the pointer 18 is observed to point to the zero mark of the first dial 12, the worker stops rotating the first dial 12.

[0034] S6. The worker manually turns the handle 17 on the adjusting wrench 16 to rotate the adjusting wrench 16 around its own axis. The adjusting wrench 16 drives the fork and pointer 18 on it to rotate synchronously. The fork drives the front sight adjustment mechanism to deflect. When the worker observes that the scale pointed to by the pointer is equal to the pre-measured deflection angle, the worker stops rotating the handle 17 on the adjusting wrench 16, thus finally achieving the correction of the front sight of the automatic rifle.

[0035] As can be seen from steps S1 to S6, this precision rifle calibrator can quickly calibrate the front sight of an automatic rifle by simply adjusting the pointer 18 on the wrench 16, the first dial 12, and the sliding component. This greatly improves the calibrating efficiency of the front sight. In addition, it allows for a more intuitive judgment of whether the front sight has been calibrated properly. Compared to workers using an adjustment wrench based on experience, this greatly improves the accuracy of the front sight calibration.

[0036] The specific steps for calibrating the peep sight of an automatic rifle are as follows:

[0037] S7. The worker removes the adjusting wrench 16 from the first boss 10; then loosens the bolt 3 to make the moving clamp 2 move away from the fixed clamp 1.

[0038] S8. Workers use special tools to measure the deflection angle of the peephole on the automatic rifle in advance;

[0039] S9. The worker places the moving plate 2 and the fixed plate 1 of the precision rifle straightener on the left and right sides of the sight of the automatic rifle, respectively. Then the worker tightens the screw head of the bolt 3. With the cooperation of the threaded section of the bolt 3 and the moving plate 2, the moving plate 2 moves towards the fixed plate 1. After tightening the screw head of the bolt 3 a certain number of turns, the sight of the automatic rifle is just clamped and fixed between the moving plate 2 and the fixed plate 1.

[0040] S10. The worker passes the fork of the adjusting wrench 16 from left to right through the horizontal through hole 14 in the second boss 13, and makes the fork of the adjusting wrench cooperate with the peep hole adjustment structure; the worker rotates the second scale 15 so that the second scale 15 rotates around the axis of the second boss 13. When the pointer 18 is observed to point to the zero mark of the second scale 15, the worker stops rotating the second scale 15.

[0041] S11. The worker manually turns the handle 17 on the adjusting wrench 16 to rotate the adjusting wrench 16 around its own axis. The adjusting wrench 16 drives the fork and pointer 18 on it to rotate synchronously. The fork drives the peep adjustment structure to deflect. When the worker observes that the scale pointed to by the pointer is equal to the pre-measured deflection angle, the worker stops rotating the handle 17 on the adjusting wrench 16, thus finally achieving the correction of the peep of the automatic rifle.

[0042] As can be seen from steps S8 to S11, this precision rifle calibrator can quickly calibrate the peep sight on an automatic rifle by simply adjusting the pointer 18 on the wrench 16 and the second scale 15, thereby greatly improving the peep sight calibration efficiency. In addition, it allows for a more intuitive judgment of whether the peep sight has been calibrated properly. Compared with workers using the wrench based on experience, this greatly improves the peep sight calibration accuracy.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable precision gun-calibrating device, characterized in that: It includes a fixed clamping plate (1) and a movable clamping plate (2). A bolt (3) is rotatably installed inside the fixed clamping plate (1). The threaded section of the bolt (3) passes through the fixed clamping plate (1) to the left, and the extended end is threadedly connected to the movable clamping plate (2). A square hole (4) is opened on the end face of the fixed clamping plate (1). A threaded hole (5) is opened on the side wall of the square hole (4). A locking screw (6) is threadedly connected inside the threaded hole (5). A sliding assembly is provided between the movable clamping plate (2) and the fixed clamping plate (1). The sliding assembly includes a guide rod (7), a fixing block (8) and a rectangular strip (9) that are sequentially fixed together from left to right. The guide rod (7) slides to the left through the movable clamping plate (2). The rectangular strip (9) slides in cooperation with the square hole (4). A first boss (10) is fixed on the top surface of the fixing block (8). A vertical through hole (11) is opened on the top surface of the first boss (10) and penetrates the bottom surface of the fixing block (8). A first scale (12) is rotatably mounted on the first boss (10). The left end face of the moving clamp (2) is fixedly provided with a second boss (13), and the left end face of the second boss (13) is provided with a horizontal through hole (14) penetrating the right end face of the moving clamp (2). A second scale (15) is rotatably installed on the second boss (13). The precision gun calibrator also includes an adjustment wrench (16), the bottom of the adjustment wrench (16) is provided with a fork, and the upper end of the adjustment wrench (16) is fixedly provided with a handle (17) and a pointer (18). The pointer (18) is located below the handle (17) and the pointer (18) is perpendicular to the adjustment wrench (16).

2. The portable precision gun-calibrating device according to claim 1, characterized in that: Both the fixed clamping plate (1) and the movable clamping plate (2) are L-shaped.

3. A portable precision gun-calibrating device according to claim 2, characterized in that: The movable clamping plate (2) has a guide hole (19) inside, and the guide rod (7) of the sliding assembly slides in conjunction with the guide hole (19).

4. A portable precision gun-calibrating device according to claim 3, characterized in that: The square hole (4) is located on the rear side of the bolt (3).

5. A portable precision gun-calibrating device according to claim 4, characterized in that: The diameter of the vertical through hole (11) in the first boss (10) is equal to the diameter of the adjusting wrench (16), and the diameter of the horizontal through hole (14) in the second boss (13) is equal to the diameter of the adjusting wrench (16).

6. A portable precision gun-calibrating device according to claim 5, characterized in that: The adjusting wrench (16) has a pin hole arranged radially therein, and the pointer (18) is interference-fitted with the pin hole.

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