Laser screen device with protection function

Abstract

The utility model relates to weapon ammunition test technical field, through setting up the protection board, type solves the problem that traditional contact type measuring method can produce the damage to target, does not have the condition of repeated measurement, and the measuring efficiency is also low, and the measuring precision is not high. Simultaneously, the laser emitter is moved by using the alignment device, and the laser emitted by the laser emitter is aligned with the corresponding laser receiver, so that the whole target surface is subdivided into multiple small areas, no dead angle is ensured in the effective target surface, and the measuring precision is higher.

Description

Technical Field

[0001] This utility model relates to the field of weapon and ammunition testing technology, specifically to a laser target shield device with protective function. Background Technology

[0002] Measuring the flight angle and velocity of fast-moving targets such as artillery shells has always been a challenge in the field of measurement. With the advancement of technology, the speed of flying objects is constantly increasing, placing higher demands on measurement equipment. For example, in the field of weapons testing ranges, the flight velocity and impact coordinates of projectiles are important indicators for evaluating weapon performance. The ability to accurately measure these parameters is a crucial factor in determining the advancement and improvement of weaponry; therefore, developing an effective measurement device is of great significance.

[0003] Traditional contact measurement methods can damage the target, do not allow for repeated measurements, have low measurement efficiency, and are not very accurate. Utility Model Content

[0004] In order to overcome the shortcomings of the above technologies, this utility model provides a laser curtain target device with high measurement accuracy and to prevent damage to the target.

[0005] The technical solution adopted by this utility model to overcome its technical problem is: A laser target shield device with protective function includes: The frame is formed by welding steel profiles, and rectangular cavities are formed within the frame; N laser emitters are arranged at the lower end of the cavity, and the laser emitters are arranged at intervals along the left and right direction. N laser receivers are arranged at the upper end of the cavity. N laser emitters are arranged at the right end of the cavity, and the laser emitters are arranged at intervals along the vertical direction. N laser receivers are arranged at the left end of the cavity. The laser emitter is mounted in the frame by an alignment device, which drives the optical axis of the laser emitter to align with the corresponding laser receiver.

[0006] Preferably, N is a positive integer greater than or equal to 2.

[0007] Furthermore, the alignment device comprises a base plate mounted on the frame, a rotating plate rotatably mounted on the base plate via a rotating shaft I, a swing plate rotatably mounted on the rotating plate via a rotating shaft II, a power mechanism I, and a power mechanism II. The axis of rotating shaft I is parallel to the rectangular plane of the cavity, and the axis of rotating shaft II is perpendicular to the rectangular plane of the cavity. Power mechanism I drives the rotating plate to rotate relative to the base plate, and power mechanism II drives the swing plate to swing relative to the rotating plate. The laser emitter is mounted on the swing plate.

[0008] Furthermore, the aforementioned power mechanism I includes a motor I mounted on the base plate and a sector gear I mounted on the head end of the rotating plate. The axis of the sector gear I is coaxial with the axis of the rotating shaft I. Gear I is mounted on the transmission shaft of the motor I, and gear I meshes with the sector gear I.

[0009] Furthermore, the aforementioned power mechanism II includes a motor II mounted on a rotating plate and a sector gear II mounted on the head end of a swing plate. The axis of the sector gear II is coaxial with the axis of the rotating shaft II. A gear II is mounted on the transmission shaft of the motor II, and the gear II meshes with the sector gear II.

[0010] Furthermore, both motor I and motor II mentioned above are self-locking motors.

[0011] Furthermore, it also includes a lower protective plate installed on the frame and located at the lower end of the cavity, an upper protective plate installed on the frame and located at the upper end of the cavity, a left protective plate installed on the frame and located at the left end of the cavity, and a right protective plate installed on the frame and located at the right end of the cavity. Each laser emitter is located at the rear end of the lower protective plate and the right protective plate, and each laser receiver is located at the rear end of the upper protective plate and the left protective plate.

[0012] Furthermore, it also includes side guards mounted on the frame and surrounding the rectangular cavity sides.

[0013] The beneficial effects of this invention are as follows: By setting up a protective plate, it solves the problems of traditional contact measurement methods that damage the target, lack repeatability, have low measurement efficiency, and are not accurate. Simultaneously, by using an alignment device to move the laser emitter, the laser emitted by the emitter is aligned with its corresponding laser receiver. This not only subdivides the entire target surface into multiple small areas, ensuring no blind spots within the effective target surface, but also improves measurement accuracy. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is the main view of the present invention. Figure 3 This is a left-side structural view of the present invention; Figure 4 This is a schematic diagram of the alignment device of this utility model; In the diagram: 1. Frame; 2. Lower protective plate; 3. Upper protective plate; 4. Left protective plate; 5. Right protective plate; 6. Side protective plate; 7. Cavity; 8. Laser emitter; 9. Laser receiver; 10. Base plate; 11. Rotating shaft I; 12. Rotating plate; 13. Rotating shaft II; 14. Swinging plate; 15. Motor I; 16. Gear I; 17. Sector gear I; 18. Motor II; 19. Gear II; 20. Sector gear II. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The present invention will be further described below.

[0016] A laser target shield device with protective function includes: a frame 1 formed by welding steel profiles, with a rectangular cavity 7 formed in the frame 1; N laser emitters 8 are arranged at the lower end of the cavity 7, with each laser emitter 8 spaced apart in the left-right direction, and N laser receivers 9 are arranged correspondingly at the upper end of the cavity 7; N laser emitters 8 are arranged at the right end of the cavity 7, with each laser emitter 8 spaced apart in the vertical direction, and N laser receivers 9 are arranged correspondingly at the left end of the cavity 7; the laser emitters 8 are installed in the frame 1 by an alignment device, and the alignment device drives the optical axis of the laser emitters 8 to align with the corresponding laser receivers 9. Each laser emitter 8 is spaced at the same distance from its corresponding laser receiver 9, forming a grid target surface inside the cavity 7. This grid surface is subdivided into multiple small regions. When a projectile passes through the target surface, it blocks some of the light emitted from the laser emitter 8, causing a change in the luminous flux received by the laser receiver 9. By recording the location of the signal change, the impact coordinates of the projectile on the light screen can be determined. The projectile's velocity can then be obtained from the coordinates of the two surfaces. This is the principle of a laser screen target, a well-known technology, and will not be elaborated further here. Since each laser emitter 8 is mounted on the frame 1 via an alignment device, the alignment device can drive the laser emitter 8 to move, aligning the laser emitted by the laser emitter 8 with its corresponding laser receiver 9, thus improving measurement accuracy.

[0017] In one embodiment of this utility model, N is a positive integer greater than or equal to 2.

[0018] In one embodiment of this utility model, the alignment device comprises a base plate 10 mounted on a frame 1, a rotating plate 12 rotatably mounted on the base plate 10 via a rotating shaft I 11, a swing plate 14 rotatably mounted on the rotating plate 12 via a rotating shaft II 13, a power mechanism I, and a power mechanism II. The axis of the rotating shaft I 11 is parallel to the rectangular plane of the cavity 7, and the axis of the rotating shaft II 13 is perpendicular to the rectangular plane of the cavity 7. The power mechanism I drives the rotating plate 12 to rotate relative to the base plate 10, and the power mechanism II drives the swing plate 14 to swing relative to the rotating plate 12. A laser emitter 8 is mounted on the swing plate 14. In each case, the power mechanism I drives the rotating plate 12 to rotate relative to the base plate 10, thereby rotating the laser emitter 8 and achieving a change in horizontal angle. The power mechanism II drives the swing plate 14 to swing relative to the rotating plate 12, thereby swinging the laser emitter 8 and achieving a change in pitch angle. This ensures that each laser emitter 8 is aligned with its corresponding laser receiver 9.

[0019] In one embodiment of this utility model, the power mechanism I includes a motor I 15 mounted on the base plate 10 and a sector gear I 17 mounted on the head end of the rotating plate 12. The axis of the sector gear I 17 is coaxial with the axis of the rotating shaft I 1. A gear I 16 is mounted on the transmission shaft of the motor I 15, and the gear I 16 meshes with the sector gear I 17. The rotation of the motor I 15 drives the gear I 16 to rotate. Since the gear I 16 meshes with the sector gear I 17, the rotating plate 12 is driven to rotate relative to the base plate 10 via the rotating shaft I 11. The power mechanism II includes a motor II 18 mounted on the rotating plate 12 and a sector gear II 20 mounted on the head end of the swing plate 14. The axis of the sector gear II 20 is coaxial with the axis of the rotating shaft II 13. A gear II 19 is mounted on the transmission shaft of the motor II 18, and the gear II 19 meshes with the sector gear II 20. Motor II 18 rotates, thereby driving gear II 19 to rotate. Since gear II 19 meshes with sector gear II 20, it drives the swing plate 14 to rotate relative to the rotating plate 12 via shaft II 13. In this embodiment, both motor I 15 and motor II 18 are self-locking motors. The self-locking motors can lock immediately after stopping rotation to prevent the laser emitter 8 from shifting position due to the free rotation of its shaft when the motor stops working, even after the laser emitter 8 has been adjusted to the correct position.

[0020] In one embodiment of this utility model, it further includes a lower protective plate 2 mounted on the frame 1 and located at the lower end of the cavity 7, an upper protective plate 3 mounted on the frame 1 and located at the upper end of the cavity 7, a left protective plate 4 mounted on the frame 1 and located at the left end of the cavity 7, and a right protective plate 5 mounted on the frame 1 and located at the right end of the cavity 7. Each laser emitter 8 is located at the rear end of the lower protective plate 2 and the right protective plate 5, and each laser receiver 9 is located at the rear end of the upper protective plate 3 and the left protective plate 4. By setting the lower protective plate 2, the upper protective plate 3, the left protective plate 4, and the right protective plate 5, each laser emitter 8 and laser receiver 9 is hidden behind the protective plates, which can effectively protect the laser emitters 8 and laser receivers 9 from damage by fragments, allowing the laser target device to be reused.

[0021] In one embodiment of this utility model, a side protective plate 6 is further included, which is mounted on the frame 1 and surrounds the side of the rectangular cavity 7. By providing the side protective plate 6 on the side of the cavity 7, it is possible to further ensure that the laser emitter 8 and laser receiver 9 behind the frame 1 are destroyed, thereby further improving the protection level and increasing the reliability of use.

[0022] 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 laser target device with protective function, characterized in that, include: The frame (1) is formed by welding steel profiles, and a rectangular cavity (7) is formed in the frame (1). N laser emitters (8) are provided at the lower end of the cavity (7), and each laser emitter (8) is arranged at intervals along the left and right directions. N laser receivers (9) are provided at the upper end of the cavity (7). N laser emitters (8) are provided on the right side of the cavity (7), and each laser emitter (8) is arranged at intervals along the vertical direction. N laser receivers (9) are provided on the left side of the cavity (7). The laser emitter (8) is installed in the frame (1) by an alignment device, which drives the optical axis of the laser emitter (8) to align with the corresponding laser receiver (9).

2. The laser target device with protective function according to claim 1, characterized in that: N is a positive integer greater than or equal to 2.

3. The laser target device with protective function according to claim 1, characterized in that: The alignment device comprises a base plate (10) mounted on a frame (1), a rotating plate (12) mounted on the base plate (10) via a rotating shaft I (11), a swing plate (14) mounted on the rotating plate (12) via a rotating shaft II (13), a power mechanism I, and a power mechanism II. The axis of the rotating shaft I (11) is parallel to the rectangular plane of the cavity (7), and the axis of the rotating shaft II (13) is perpendicular to the rectangular plane of the cavity (7). The power mechanism I drives the rotating plate (12) to rotate relative to the base plate (10), and the power mechanism II drives the swing plate (14) to swing relative to the rotating plate (12). The laser emitter (8) is mounted on the swing plate (14).

4. The laser target device with protective function according to claim 3, characterized in that: The power mechanism I includes a motor I (15) mounted on the base plate (10) and a sector gear I (17) mounted on the head end of the rotating plate (12). The axis of the sector gear I (17) is coaxial with the axis of the rotating shaft I (11). A gear I (16) is mounted on the transmission shaft of the motor I (15), and the gear I (16) meshes with the sector gear I (17).

5. The laser target device with protective function according to claim 4, characterized in that: The power mechanism II includes a motor II (18) mounted on a rotating plate (12) and a sector gear II (20) mounted on the head end of a swing plate (14). The axis of the sector gear II (20) is coaxial with the axis of the rotating shaft II (13). A gear II (19) is mounted on the transmission shaft of the motor II (18), and the gear II (19) meshes with the sector gear II (20).

6. The laser target device with protective function according to claim 5, characterized in that: Both motor I (15) and motor II (18) are self-locking motors.

7. The laser target device with protective function according to claim 1, characterized in that: It also includes a lower protective plate (2) installed on the frame (1) and located at the lower end of the cavity (7), an upper protective plate (3) installed on the frame (1) and located at the upper end of the cavity (7), a left protective plate (4) installed on the frame (1) and located at the left end of the cavity (7), and a right protective plate (5) installed on the frame (1) and located at the right end of the cavity (7). Each laser emitter (8) is located at the rear end of the lower protective plate (2) and the right protective plate (5), and each laser receiver (9) is located at the rear end of the upper protective plate (3) and the left protective plate (4).

8. The laser target device with protective function according to claim 1, characterized in that: It also includes a side guard plate (6) mounted on the frame (1) and surrounding the side of the rectangular cavity (7).

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