Laser condenser for vehicle detection

Abstract

The utility model discloses a laser condenser for vehicle detection, which relates to the technical field of laser detection, and comprises a shell, the interior of the shell is of a cavity structure, triangular blocks are arranged on two sides of the rear end of the cavity, a diffuser is arranged at the front end of each triangular block, and a light guide plate is arranged at the rear end of each triangular block. A laser transmitter is installed in the light diffusion cover, the triangular blocks on the two sides are oppositely arranged, reflectors are bonded to the end faces of the triangular blocks, a transmitting groove is formed in the front end of the shell, a top cover is arranged at the lower end of the shell, and a wiring hole is formed in the rear end of the shell. According to the scheme, the problems that in the vehicle contour detection process of an existing laser transmitter, the laser conversion efficiency is low, the detection precision is poor, the actual experience of a user is affected, and meanwhile part of the laser probe end is exposed and is prone to being affected by ambient light, so that the detection precision is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of laser detection technology, specifically a laser concentrator for vehicle detection. Background Technology

[0002] As a representative of modern transportation, automobiles have become an indispensable part of people's daily lives. Therefore, the design and safety performance of automobiles are key factors in ensuring their safe operation on the road. Laser sensors are sensors that utilize laser technology for measurement. They typically consist of a laser generator, a laser detector, and a measurement circuit. The sensor converts the measured physical quantity into a light signal, then uses photoelectric conversion to transform the light signal into an electrical signal. Finally, through filtering, amplification, and rectification by appropriate circuits, an output signal is obtained, thereby calculating the measured quantity.

[0003] Currently, laser sensors are widely used in vehicle contour detection, width and height over-limit detection, vehicle counting, and safety protection.

[0004] Since some laser emitters are gas lasers, such as carbon dioxide lasers, helium-neon lasers, and carbon monoxide lasers, their laser conversion efficiency is low and the detection accuracy is poor during vehicle contour detection, affecting the user's actual experience. At the same time, some laser probe ends are exposed and are easily affected by ambient light, which reduces the detection accuracy. Therefore, we propose a laser concentrator for vehicle detection to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a laser concentrator for vehicle inspection, in order to solve the problems mentioned in the background art, such as low laser conversion efficiency and poor detection accuracy of existing laser emitters in the process of vehicle contour detection, which affect the user's actual experience, and the fact that some laser probe ends are exposed and are easily affected by ambient light, thus reducing the detection accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laser concentrator for vehicle detection, comprising a housing, wherein the interior of the housing is a cavity structure, and triangular blocks are provided on both sides of the rear end of the cavity. A diffuser is provided at the front end of each triangular block, and a laser emitter is installed inside the diffuser. The two triangular blocks are arranged opposite to each other, and a reflector is attached to the end face of each triangular block. An emission slot is provided at the front end of the housing, a top cover is provided at the lower end of the housing, and a wiring hole is provided at the rear end of the housing.

[0007] Preferably, the triangular block is provided with a second screw hole, and the triangular block is connected to the housing cavity through the second screw hole and a screw. The triangular block is a right-angled triangular prism, and the two sides of the triangular block are arranged opposite each other, forming a 45-degree angle between them.

[0008] Preferably, the top cover is provided with first screw holes on all four sides, and the top cover is connected to the housing through the first screw holes and screws.

[0009] Preferably, a positioning plate is provided on the inner wall of the top cover, and a flexible sealing strip is provided at the edge of the positioning plate.

[0010] Preferably, both the housing and the top cover are made of non-transparent material.

[0011] Preferably, a laser maintenance board is installed at the lower end of the housing, and the four corners of the laser maintenance board are connected to the housing by screws.

[0012] Preferably, the diffuser is made of plastic material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By placing the laser emitter inside the housing, the laser emitted by the laser emitter is first scattered by the diffuser. Two sets of reflectors with a 45-degree angle are set at the rear end of the diffuser, which can reflect the laser beams directed at them forward, so that most of the laser beams of the laser emitter are directed and focused forward and emitted along the emission slot, thereby improving the laser conversion efficiency and solving the problem of low laser conversion efficiency and poor detection accuracy of the existing laser emitter in the process of vehicle contour detection.

[0015] (2) Because the laser emitter is built-in and the shell and top cover are made of non-transparent material, the laser emitter is protected from damage caused by external collisions and the interference of ambient light on the laser is prevented, thus improving the detection accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the shell of this utility model;

[0020] Figure 5 This is a schematic diagram of the top cover structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the optical path of this utility model;

[0022] In the diagram: 1. Housing; 2. Top cover; 201. Positioning plate; 202. Flexible sealing strip; 3. Emission slot; 4. First screw hole; 5. Wiring hole; 6. Laser maintenance board; 7. Screw; 8. Triangular block; 9. Second screw hole; 10. Reflector; 11. Diffuser. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a laser concentrator for vehicle detection, comprising a housing 1, the housing 1 having an internal cavity structure, and triangular blocks 8 being provided on both sides of the rear end of the cavity. A diffuser 11 is provided at the front end of the triangular blocks 8, and a laser emitter is installed inside the diffuser 11. The two triangular blocks 8 are arranged opposite each other, and a reflector 10 is attached to the end face of the triangular blocks 8. An emission groove 3 is provided at the front end of the housing 1, a top cover 2 is provided at the lower end of the housing 1, and a wiring hole 5 is provided at the rear end of the housing 1. A second screw hole 9 is provided on the triangular blocks 8, and the triangular blocks 8 are connected to the cavity of the housing 1 through the second screw hole 9 and a screw. The triangular blocks 8 are right-angled triangular prisms, and the two triangular blocks 8 are arranged opposite each other at a 45-degree angle. The housing 1 and the top cover 2 are made of non-transparent material, and the diffuser 11 is made of plastic material.

[0025] The relevant wires of the laser emitter pass through the wiring hole 5 and connect to external equipment. During use, the laser beam from the laser emitter is emitted in all directions through the diffuser 11, and then reflected forward by two sets of reflectors 10 at a 45-degree angle. This causes most of the laser beams from the laser emitter to be directed and focused forward, exiting along the emission slot 3. Figure 6 As shown, because the laser emitter is built-in and shielded by a housing 1 and a top cover 2 made of non-transparent material, it not only prevents the laser emitter from being damaged by external collisions, but also prevents ambient light from interfering with the laser, thus improving detection accuracy.

[0026] Please see Figure 4 The top cover 2 is provided with first screw holes 4 on all four sides, and the top cover 2 is connected to the housing 1 through the first screw holes 4 and screws. The top cover 2 is a detachable structure, which is convenient for inspection and maintenance.

[0027] Please see Figure 5A positioning plate 201 is provided on the inner wall of the top cover 2, and a flexible sealing strip 202 is provided at the edge of the positioning plate 201. The inner wall of the top cover 2 is engaged with the groove at the upper end of the housing 1 through the positioning plate 201, which improves the tightness of the connection. The setting of the flexible sealing strip 202 further ensures the sealing of the connection and prevents light from leaking out from there.

[0028] Please see Figure 3 The lower end of the housing 1 is equipped with a laser maintenance board 6. The four corners of the laser maintenance board 6 are connected to the housing 1 by screws 7. The laser emitter is installed from the bottom into the diffuser 11 and then covered and fixed by the laser maintenance board 6. The laser maintenance board 6 has a detachable structure, which makes it convenient to inspect and maintain the internal laser emitter.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A laser concentrator for vehicle inspection, comprising a housing (1), characterized in that: The housing (1) has a hollow cavity structure inside, and triangular blocks (8) are provided on both sides of the rear end of the cavity. A diffuser (11) is provided at the front end of the triangular block (8). A laser emitter is installed inside the diffuser (11). The triangular blocks (8) on both sides are arranged opposite each other, and a reflector (10) is attached to the end face of the triangular block (8). An emission slot (3) is provided at the front end of the housing (1). A top cover (2) is provided at the lower end of the housing (1). A wiring hole (5) is provided at the rear end of the housing (1).

2. A laser concentrator for vehicle inspection according to claim 1, characterized in that: The triangular block (8) is provided with a second screw hole (9), and the triangular block (8) is connected to the cavity of the housing (1) through the second screw hole (9) and screw. The triangular block (8) is a right-angled triangular prism, and the two sides of the triangular block (8) are arranged opposite each other, with a 45-degree angle between them.

3. A laser concentrator for vehicle inspection according to claim 1, characterized in that: The top cover (2) is provided with first screw holes (4) on all four sides, and the top cover (2) is connected to the housing (1) through the first screw holes (4) and screws.

4. A laser concentrator for vehicle inspection according to claim 1, characterized in that: A positioning plate (201) is provided on the inner wall of the top cover (2), and a flexible sealing strip (202) is provided at the edge of the positioning plate (201).

5. A laser concentrator for vehicle inspection according to claim 1, characterized in that: Both the shell (1) and the top cover (2) are made of non-transparent materials.

6. A laser concentrator for vehicle inspection according to claim 1, characterized in that: A laser maintenance board (6) is installed at the lower end of the housing (1), and the four corners of the laser maintenance board (6) are connected to the housing (1) by screws (7).

7. A laser concentrator for vehicle inspection according to claim 1, characterized in that: The diffuser (11) is made of plastic material.

Images