Laser curtain emitting device for vehicle flow blocking

Abstract

The utility model discloses a laser light curtain transmitting device for vehicle flow blocking, including installation post, installation mechanism and laser transmitter, the installation mechanism includes the first diamond plate of setting in the inside of installation post, is equipped with the screw rod on the four corners of first diamond plate respectively, is equipped with nut group on the screw rod, is equipped with the second diamond plate between nut group, the outside of second diamond plate is equipped with the installation board that is L type, the laser transmitter sets up in the side portion of installation board, be equipped with first light hole on first diamond plate, is equipped with first lens in first light hole, be equipped with the second light hole of coaxial arrangement with first light hole on second diamond plate, is equipped with second lens in second light hole, be equipped with a plurality of first light transmission hole corresponding with first light hole on the lateral wall of installation post. The utility model can be according to actual highway working condition, the flexible adjustment laser beam diameter, promotes laser visibility, ensures that the driver can clearly identify.

Description

Technical Field

[0001] This utility model relates to a laser light curtain emitting device for traffic control, belonging to the technical field of laser emitting devices. Background Technology

[0002] As a new type of optical visual traffic warning device, the laser light curtain traffic blocking equipment forms a virtual barrier by emitting a laser light curtain in emergency situations (such as traffic accidents and disaster relief). This can quickly stop traffic, buy time for accident handling, and reduce the risk of secondary accidents. The core of the equipment consists of a laser light curtain transmitter, a blocking device, and a control box. A complete light curtain is formed by the precise alignment of the two devices on both sides. In practical use, existing transmitters have areas for optimization: due to the significant differences in road width, the laser beam diameter of traditional transmitters is often fixed. When the road is wide, the beam energy diffuses with increasing distance, causing the laser to fail to focus effectively on the blocking end, resulting in partial light leakage. When the road is narrow, insufficient diffusion often occurs, making the formed laser light curtain less noticeable. Drivers may find it difficult to quickly detect the warning signal while driving, thus failing to maximize the effectiveness of the traffic blocking and safety warning functions of the transmitter and increasing the potential risk of traffic accidents. Utility Model Content

[0003] The purpose of this invention is to provide a laser light curtain emitting device for traffic control. This invention allows for flexible adjustment of the laser beam diameter according to actual road conditions, improving laser visibility and ensuring clear identification by drivers.

[0004] The technical solution of this utility model: a laser light curtain emitting device for traffic obstruction, comprising a mounting column, with multiple mounting mechanisms longitudinally arranged inside the mounting column, and a laser emitter mounted on each mounting mechanism; the mounting mechanism includes a first rhomboid plate disposed inside the mounting column, with screws respectively disposed at the four corners of the first rhomboid plate, and nut assemblies disposed on the screws, with a second rhomboid plate disposed between the nut assemblies, and an L-shaped mounting plate disposed on the outer side of the second rhomboid plate; the laser emitter is disposed on the side of the mounting plate; the first rhomboid plate has a first light-transmitting hole, and a first lens is disposed within the first light-transmitting hole; the second rhomboid plate has a second light-transmitting hole coaxially arranged with the first light-transmitting hole, and a second lens is disposed within the second light-transmitting hole; the first and second light-transmitting holes correspond to the emitting end of the laser emitter; the side wall of the mounting column has multiple first light-transmitting holes corresponding to the first light-transmitting holes.

[0005] In the aforementioned laser light curtain emitting device for blocking traffic, the first lens is an aspherical convex lens; the second lens is an aspherical concave lens.

[0006] The aforementioned laser light curtain emitting device for blocking traffic flow has a protective shell on the side wall of the mounting column covering the outside of the first light-transmitting hole, and a rain shield above the protective shell; the front of the protective shell has a second light-transmitting hole corresponding to the first light-transmitting hole, and a protective glass is provided on the second light-transmitting hole.

[0007] The aforementioned laser light curtain emitting device for blocking traffic flow has a plurality of first mounting holes on its protective shell; the side of the mounting post has a plurality of second threaded holes, which correspond to the first mounting holes.

[0008] The aforementioned laser light curtain emitting device for blocking traffic has multiple protective covers rotatably connected to the mounting column.

[0009] The aforementioned laser light curtain emitting device for blocking traffic flow has multiple second mounting holes on the first diamond-shaped plate.

[0010] The aforementioned laser light curtain emitting device for blocking traffic has the same shape for both the first and second rhomboid plates, with rounded corners at the four corners.

[0011] Compared with the prior art, this utility model has the following beneficial effects: When installing the laser emitter, one of the nuts in the nut assembly is screwed into each screw to determine the relative distance between the first light-transmitting hole of the first rhombus plate and the second light-transmitting hole of the second rhombus plate. Then, the second rhombus plate is installed on the screw, and the other nut in the nut assembly is screwed into the screw. The clamping action of the two nuts fixes the second rhombus plate, preventing it from moving along the screw axis. After the laser emitter is installed on the mounting plate, the laser beam emitted by it passes sequentially through the second lens in the second light-transmitting hole and the first lens in the first light-transmitting hole and exits from the first light-transmitting hole. Based on the magnification principle of the lens assembly, the beam is expanded and shaped. By adjusting the relative position of the first and second rhombus plates, the distance between the two lenses is changed, thereby controlling the diffusion ratio of the laser beam. Preferably, the first lens is an aspherical convex lens; the second lens is an aspherical concave lens. The laser beam is first diverged by the concave lens and then refocused by the convex lens, thereby achieving beam expansion. By adjusting the distance between the two lenses, the divergence of the laser beam by the concave lens can be changed, thereby adjusting the size of the laser spot. When the road is wide, the distance between the two lenses can be reduced, resulting in a smaller laser spot that is better focused on the obstruction end, preventing light leakage. When the road is narrow, the distance between the two lenses can be increased, resulting in a larger laser spot and a more obvious laser curtain. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the mounting column;

[0014] Figure 3 This is a structural diagram of the installation mechanism;

[0015] Figure 4 This is a schematic diagram of the protective shell;

[0016] Figure 5 This is a structural schematic diagram of the mounting column sidewall.

[0017] The labels in the attached diagram are as follows: 1-Mounting post, 2-Mounting mechanism, 3-Laser emitter, 4-First light-transmitting hole, 5-Protective shell, 6-Rainproof plate, 7-Protective cover, 9-First mounting hole, 10-Second threaded hole, 11-Second light-transmitting hole, 20-First diamond plate, 21-Screw, 22-Nut assembly, 23-Second diamond plate, 24-Mounting plate, 25-First light-transmitting hole, 26-Second light-transmitting hole, 27-Second mounting hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A laser light curtain emitting device for traffic control, configured as follows Figure 1-5 As shown, the mounting column 1 is made of high-strength aluminum alloy with an anodized surface. The bottom of the mounting column 1 has a flange, which is bolted to the ground. Figure 2 As shown, the mounting column 1 has multiple mounting mechanisms 2 arranged longitudinally inside, and each mounting mechanism 2 is equipped with a laser emitter 3; as Figure 3As shown, the mounting mechanism 2 includes a first rhomboid plate 20 disposed inside the mounting column 1. Screws 21 are respectively provided at the four corners of the first rhomboid plate 20, and nut assemblies 22 are provided on the screws 21. A second rhomboid plate 23 is disposed between the nut assemblies 22, and an L-shaped mounting plate 24 is provided on the outer side of the second rhomboid plate 23. The first rhomboid plate 20 and the second rhomboid plate 23 have the same rhomboid shape, with rounded corners at the four corners. The laser emitter 3 is disposed on the side of the mounting plate 24. The first rhomboid plate 20 has a first light-transmitting hole 25, and a first lens, which is an aspherical convex lens, is disposed within the first light-transmitting hole 25 for beam shaping. The second rhomboid plate 23 has a second light-transmitting hole 26 coaxially arranged with the first light-transmitting hole 25, and a second lens, which is an aspherical concave lens, is disposed within the second light-transmitting hole 26 for initial beam expansion. The laser beam is first diverged by the concave lens, and then refocused by the convex lens, thereby achieving beam expansion. By adjusting the distance between the two lenses, the divergence of the concave lens on the light beam can be changed, thereby adjusting the spot size. The first light-transmitting hole 25 and the second light-transmitting hole 26 correspond to the emitting end of the laser emitter 3; the side wall of the mounting post 1 is provided with a plurality of first light-transmitting holes 4 corresponding to the first light-transmitting hole 25. When installing the laser emitter 3, first screw one of the nuts 22 into each screw 21 to determine the relative distance between the first light-transmitting hole 25 of the first rhomboid plate 20 and the second light-transmitting hole 26 of the second rhomboid plate 23. Then, the second rhomboid plate 23 is installed on the screw 21, and the other nut in the nut 22 is screwed into the screw 21. The second rhomboid plate 23 is fixed by the clamping action of the double nuts to prevent it from moving axially along the screw 21. After the laser emitter 3 is installed on the mounting plate 24, the laser beam emitted by it passes through the second lens in the second light-transmitting hole 26 and the first lens in the first light-transmitting hole 25 in sequence and is emitted from the first light-transmitting hole 4. Based on the lens group magnification principle, the beam is expanded and shaped. By adjusting the relative position of the first rhomboid plate 20 and the second rhomboid plate 23, the distance between the two lenses is changed, thereby controlling the magnification ratio of the laser beam.

[0020] Preferably, such as Figure 4 As shown, the mounting post 1 has a protective shell 5 covering the outside of the first light-transmitting hole 4 on its side wall. A rain shield 6 is provided above the protective shell 5 to prevent rainwater and sand from entering and to protect the internal structure. The front of the protective shell 5 has a second light-transmitting hole 11 corresponding to the first light-transmitting hole 4, and a protective glass is provided on the second light-transmitting hole 11. The protective shell 5 has multiple first mounting holes 9; as shown... Figure 5 As shown, the side of the mounting post 1 is provided with a plurality of second threaded holes 10, which correspond to the first mounting holes 9. Align the first mounting holes 9 with the corresponding second threaded holes 10, and insert the bolts from the first mounting holes 9 into the second threaded holes 10 to complete the installation and fixing of the protective shell 5.

[0021] Preferably, such as Figure 1 As shown, multiple protective covers 7 are rotatably connected to the mounting column 1 to prevent dust and rainwater from entering and to protect the internal laser emitter 3.

[0022] Preferably, such as Figure 3 As shown, the first rhomboid plate 20 is provided with a plurality of second mounting holes 27; the inner wall of the mounting post 1 is provided with a plurality of third threaded holes. The second mounting holes 27 are aligned with the third threaded holes, and bolts are screwed through the second mounting holes 27 and into the third threaded holes, so that the first rhomboid plate 20 is connected and fixed to the mounting post 1. Furthermore, the first rhomboid plate 20 can be fixedly connected to the inner wall of the mounting post 1 by welding.

[0023] Working principle:

[0024] Mounting post 1 is bolted to the ground via a bottom flange. Laser beams are emitted from laser emitters 3 on multiple internal mounting mechanisms 2. These beams are initially dispersed by an aspherical concave lens within the second light-transmitting hole 26 on the second rhomboid plate 23, and then focused and shaped by an aspherical convex lens within the first light-transmitting hole 25 on the first rhomboid plate 20. The magnification ratio of the laser beam is controlled by adjusting the relative positions of the two rhomboid plates to change the lens spacing. The laser beam then exits through the first light-transmitting hole 4 and the second light-transmitting hole 11. A protective shell 5 on the side of mounting post 1 and a rain shield 6 on top protect against rain and dust. The protective shell 5 is bolted to mounting post 1. A protective cover 7 on mounting post 1 prevents dust and rainwater from entering, further protecting the internal laser emitters 3 and ensuring stable operation of the device to achieve its traffic blocking function. Preferably, the first lens is an aspherical convex lens, and the second lens is an aspherical concave lens. The laser beam is first dispersed by the concave lens and then refocused by the convex lens, thus achieving beam expansion. By adjusting the distance between the two lenses, the divergence of the laser beam by the concave lens can be changed, thereby adjusting the size of the laser spot. When the road is wide, the distance between the two lenses can be reduced, resulting in a smaller laser spot that is better focused on the obstruction end, preventing light leakage. When the road is narrow, the distance between the two lenses can be increased, resulting in a larger laser spot and a more obvious laser curtain.

Claims

1. A laser light curtain emitting device for traffic control, characterized in that: The system includes a mounting column (1), with multiple mounting mechanisms (2) arranged longitudinally inside the mounting column (1), and a laser emitter (3) mounted on each mounting mechanism (2). Each mounting mechanism (2) includes a first rhomboid plate (20) located inside the mounting column (1), with screws (21) at each of the four corners of the first rhomboid plate (20), a nut assembly (22) on each screw (21), a second rhomboid plate (23) between the nut assemblies (22), and an L-shaped mounting plate (24) on the outer side of the second rhomboid plate (23). The laser emitter (3) is mounted on the mounting column (1). The side of the mounting plate (24); the first rhomboid plate (20) is provided with a first light-transmitting hole (25), and a first lens is provided inside the first light-transmitting hole (25); the second rhomboid plate (23) is provided with a second light-transmitting hole (26) coaxially arranged with the first light-transmitting hole (25), and a second lens is provided inside the second light-transmitting hole (26); the first light-transmitting hole (25) and the second light-transmitting hole (26) correspond to the emitting end of the laser emitter (3); the side wall of the mounting column (1) is provided with a plurality of first light-transmitting holes (4) corresponding to the first light-transmitting hole (25).

2. The laser light curtain emitting device for traffic control according to claim 1, characterized in that: The first lens is an aspherical convex lens; the second lens is an aspherical concave lens.

3. The laser light curtain emitting device for traffic control according to claim 1, characterized in that: The mounting post (1) has a protective shell (5) covering the outside of the first light-transmitting hole (4) on its side wall, and a rain shield (6) is provided above the protective shell (5); the front of the protective shell (5) has a second light-transmitting hole (11) corresponding to the first light-transmitting hole (4), and a protective glass is provided on the second light-transmitting hole (11).

4. The laser light curtain emitting device for traffic control according to claim 3, characterized in that: The protective shell (5) is provided with a plurality of first mounting holes (9); the side of the mounting post (1) is provided with a plurality of second threaded holes (10), the second threaded holes (10) corresponding to the first mounting holes (9).

5. The laser light curtain emitting device for traffic control according to claim 1, characterized in that: Multiple protective covers (7) are rotatably connected to the mounting post (1).

6. The laser light curtain emitting device for traffic control according to claim 1, characterized in that: The first rhomboid plate (20) is provided with a plurality of second mounting holes (27).

7. The laser light curtain emitting device for traffic control according to claim 1, characterized in that: The first rhombus plate (20) and the second rhombus plate (23) have the same shape and are both rhombus-shaped, with rounded corners at the four corners.

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