A laser drunk driving remote measuring device

Abstract

The utility model relates to laser drunk remote measuring device technical field, and disclose a kind of laser drunk remote measuring device, including box, the both sides of the box are sleeved with two groups of fixed box, the inside sliding connection of the fixed box is limited to subassembly, the top of the box is clamped with sealing gasket, the top fixed connection of the sealing gasket is with support subassembly, the top fixed connection of support subassembly is with top cover, the limiting piece that the subassembly includes sliding connection in fixed box inside, one end of the limiting piece is fixedly connected with two groups of support spring, the inside fixed connection of the limiting piece is with clamping block;The support subassembly includes the fixed connection of several groups of telescopic spring in sealing gasket top, the top fixed connection of telescopic spring is with support frame.The laser drunk remote measuring device, reach the effect of convenient disassembly box by the setting of limiting subassembly, can be quickly disassembled without tool, significantly improve equipment overhaul efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of laser-based remote sensing devices for drunk driving, and in particular to a laser-based remote sensing device for drunk driving. Background Technology

[0002] With the development of laser spectroscopy technology, the method of detecting alcohol gas using spectroscopy has gradually matured. In this device, a semiconductor laser emits a narrow-linewidth single-mode laser. By applying a modulation signal to the laser using tunable semiconductor laser absorption spectroscopy, the laser wavelength sweeps across the absorption peak of alcohol gas molecules before being emitted. After the laser is partially absorbed by the alcohol molecules (ethanol), the remaining laser light is diffusely reflected back into the device and strikes the detector. The detector then detects the laser signal carrying the absorption information, and the concentration of alcohol gas can be obtained through circuit algorithms, thereby guiding the detection of drunk driving.

[0003] Patent document CN205898668U discloses a remote detection device and system for drunk driving. The device includes a transmitting processor positioned at predetermined intervals and a reflector that reflects back the laser emitted by the transmitting processor. The transmitting processor includes: a laser; a collimator connected to and matched to the laser for emitting the laser towards the reflector; a concave reflector for receiving and focusing the laser reflected from the reflector; a detector located at the focal point of the concave reflector for detecting and converting the laser signal with absorption information, focused by the concave reflector, into an electrical signal; and a signal processor connected to the detector for processing the electrical signal to generate a signal representing the alcohol concentration. This invention, by setting up a transmitting processor and a reflector, and detecting and processing the laser signal by focusing it through a concave reflector, greatly improves detection efficiency and traffic flow, avoiding traffic congestion and missed detections.

[0004] However, existing laser-based remote sensing devices for drunk driving are difficult to disassemble and assemble easily, and require special tools, which reduces equipment maintenance efficiency and prolongs downtime. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a laser-based remote sensing device for drunk driving, which solves the problem mentioned in the background art that the existing laser-based remote sensing devices for drunk driving are difficult to disassemble and assemble conveniently, and require special tools for disassembly and assembly, which reduces equipment maintenance efficiency and causes prolonged downtime.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a laser-based remote detection device for drunk driving, comprising a housing, with two sets of fixing boxes fitted onto both sides of the housing. A limiting component is slidably connected inside each fixing box. A sealing gasket is snapped onto the top of the housing, and a support component is fixedly connected to the top of the sealing gasket. A top cover is fixedly connected to the top of the support component. The limiting component includes a limiting piece slidably connected inside the fixing box, with two sets of support springs fixedly connected to one end of the limiting piece, and a locking block fixedly connected inside the limiting piece. The support component includes several sets of telescopic springs fixedly connected to the top of the sealing gasket, a support frame fixedly connected to the top of the telescopic springs, and several sets of positioning telescopic rods fixedly connected to the bottom of the support frame.

[0009] As a further embodiment of this utility model, four sets of insert rods are fixedly connected to the inner top wall of the top cover. The insert rods are inserted into the inside of the fixed box, and one end of the insert rod is provided with a slot that matches the card block.

[0010] As a further embodiment of this utility model, one end of the limiting piece is fixedly connected to a sliding rod, and the sliding rod is sleeved inside the supporting spring.

[0011] As a further embodiment of this utility model, connecting plates are fixedly connected to both sides of the fixing box, and threaded holes are opened on the surface of the connecting plates and the box body, with bolts passing through the inside of the threaded holes.

[0012] As a further embodiment of this utility model, a support plate is fixedly connected to the inner bottom wall of the box, and a plurality of sets of reflectors are provided on the top of the support plate, including a transmission reflector.

[0013] As a further embodiment of this utility model, a tunable laser is provided on the top surface of the support plate, and a photodetector is provided on the top surface of the support plate.

[0014] As a further embodiment of this utility model, an off-axis parabolic mirror is provided on the top surface of the support plate, a spectral calculation board is provided on the top surface of the support plate, and an indicator light is provided on the top surface of the support plate.

[0015] As a further embodiment of this utility model, a handle is fixedly connected to the top surface of the top cover, and an insertion hole adapted to the insertion rod is provided on the top of the fixing box.

[0016] As a further embodiment of this utility model, a cooling fan is provided on the inner wall of the box, and a dustproof net is provided on one side of the cooling fan.

[0017] As a further embodiment of this utility model, a detection lens is provided on the surface of the box, and mounting grooves adapted to the fixing box are provided on both sides of the box.

[0018] (III) Beneficial Effects

[0019] This utility model provides a laser-based remote detection device for drunk driving, which has the following beneficial effects:

[0020] 1. This laser-based remote detection device for drunk driving, through the setting of a limiting component, allows the device to slide within the fixed box when the housing needs to be opened for maintenance. This causes the limiting plate to compress the support spring, resulting in the spring contracting under force. Additionally, the locking block on the limiting plate disengages from the slot on the insertion rod, allowing the top cover to be pulled, thus enabling the insertion rod to be extracted from the fixed box. This facilitates convenient disassembly and assembly of the housing without the need for tools, significantly improving equipment maintenance efficiency.

[0021] 2. This laser-based remote detection device for drunk driving, through the setting of support components and sealing gaskets, achieves a dynamic sealing effect by having the sealing gasket stuck on the top surface of the enclosure. This is because the sealing gasket is clamped on the top surface of the enclosure, causing the telescopic spring to contract under force and push the sealing gasket in the opposite direction. The positioning telescopic rod remains in place, thus keeping the sealing gasket tightly against the top surface of the enclosure. This effectively meets the sealing requirements of outdoor day-night temperature differences or humid environments, improves the sealing performance of the equipment, and increases the service life of the equipment.

[0022] 3. This laser-based remote sensing device for drunk driving, through the setting of indicator lights, facilitates optical path alignment, shortens device alignment time, reduces mechanical alignment losses, and improves overall calibration efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the tunable laser and photodetector structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the support component and sealing gasket structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0028] In the diagram: 1. Housing; 2. Fixing box; 3. Limiting assembly; 301. Limiting piece; 302. Support spring; 303. Locking block; 4. Sealing gasket; 5. Supporting assembly; 501. Telescopic spring; 502. Support frame; 503. Positioning telescopic rod; 6. Top cover; 7. Insert rod; 8. Sliding rod; 9. Connecting piece; 10. Bolt; 11. Support plate; 12. Reflector; 13. Tunable laser; 14. Photodetector; 15. Off-axis parabolic mirror; 16. Spectral calculation board; 17. Handle; 18. Cooling fan; 19. Indicator light; 20. Detection lens; 21. Transmission reflector. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] Please see Figures 1 to 5 This utility model provides a technical solution: a laser-based remote detection device for drunk driving, comprising a housing 1, with two sets of fixing boxes 2 fitted onto both sides of the housing 1. A limiting component 3 is slidably connected inside the fixing box 2. The limiting component 3 facilitates easy assembly and disassembly of the housing 1, allowing for quick assembly and disassembly without tools, significantly improving equipment maintenance efficiency. A sealing gasket 4 is snapped onto the top of the housing 1, and a support component 5 is fixedly connected to the top of the sealing gasket 4. The support component 5 and the sealing gasket 4 achieve a dynamic sealing effect on the housing 1, effectively coping with outdoor day-night temperature differences or humid environments. To meet the sealing requirements, the sealing performance of the equipment is improved and the service life of the equipment is increased. The top of the support component 5 is fixedly connected to the top cover 6. The limiting component 3 includes a limiting piece 301 that is slidably connected to the inside of the fixed box 2. One end of the limiting piece 301 is fixedly connected to two sets of support springs 302. The inside of the limiting piece 301 is fixedly connected to a locking block 303. The support component 5 includes several sets of telescopic springs 501 that are fixedly connected to the top of the sealing gasket 4. The top of the telescopic springs 501 is fixedly connected to the support frame 502. The bottom of the support frame 502 is fixedly connected to several sets of positioning telescopic rods 503.

[0031] Four sets of insert rods 7 are fixedly connected to the inner top wall of the top cover 6. The insert rods 7 are inserted into the inside of the fixed box 2. One end of the insert rod 7 is provided with a slot that matches the card block 303. The slot facilitates the card block 303 to be inserted and limited.

[0032] One end of the limiting piece 301 is fixedly connected to a sliding rod 8, which is sleeved inside the support spring 302. The sliding rod 8 helps to maintain the stability of the support spring 302.

[0033] Both sides of the fixed box 2 are fixedly connected with connecting pieces 9. Both the connecting pieces 9 and the surface of the box 1 are provided with threaded holes, and bolts 10 pass through the inside of the threaded holes. The bolts 10 facilitate installation.

[0034] A support plate 11 is fixedly connected to the inner bottom wall of the box 1. Several sets of reflectors 12 are provided on the top of the support plate 11. A transmission reflector 21 is provided on the top of the support plate 11. The reflectors 12 serve to reflect light.

[0035] A tunable laser 13, a photodetector 14, an off-axis parabolic mirror 15, a spectral calculation board 16, and an indicator light 19 are mounted on the top surface of the support plate 11. The indicator light 19 facilitates optical path alignment, shortens device alignment time, reduces mechanical alignment losses, and improves overall calibration efficiency. The tunable laser 13 addresses the low sensitivity of current near-infrared lasers for detecting drunk driving, which are susceptible to interference from moisture and prone to misjudgment. By adjusting the tunable laser 13 to a suitable peak wavelength between 3300nm and 3500nm for alcohol detection, detection accuracy is improved. The spectral calculation board 16 provides power to the tunable laser 13 and the indicator light 19. The tunable laser 13 emits infrared laser light that strikes the transmission and reflection mirror 21. On the upper part, indicator light 19 emits green indicator light that hits reflector 12, and after reflection, hits transmission reflector 21 and couples with infrared laser into the same optical path. The combined light hits reflector 12, is reflected, and then passes through the central light-transmitting hole of off-axis parabolic mirror 15. The light-transmitting hole is located at the geometric center of the bottom surface of off-axis parabolic mirror 15. After passing through, it shines towards the external diffuse reflection surface. The diffuse reflection light hits off-axis parabolic mirror 15 and is reflected to photodetector 14. The reflected light also passes through the light-transmitting hole and returns to the original optical path, but the amount of reflected light passing through the light-transmitting hole is very small and the light intensity is very weak, so its influence can be ignored. Photodetector 14 converts the light signal into an electrical signal and transmits it to spectral calculation board 16. Spectral calculation board 16 can calculate the ethanol molecule concentration information in the vehicle. Photodetector 14 can be a mercury cadmium telluride infrared detector with a detection wavelength range covering 2-16μm, high detectivity, and the ability to detect weak infrared radiation signals, achieving a nanosecond-level response speed.

[0036] A handle 17 is fixedly connected to the top surface of the top cover 6, and the top of the fixing box 2 is provided with a socket that matches the plug rod 7. The socket facilitates the insertion of the plug rod 7.

[0037] The inner wall of the housing 1 is equipped with a cooling fan 18, and a dust filter is provided on one side of the cooling fan 18. The cooling fan 18 helps to accelerate the dissipation of heat.

[0038] The surface of the housing 1 is provided with a detection lens 20, and the two sides of the housing 1 are provided with mounting slots that are compatible with the fixing box 2. The mounting slots facilitate the insertion and installation of the fixing box 2.

[0039] In this invention, the working steps of the device are as follows:

[0040] First step: When it is necessary to open the box 1 for maintenance, press the limiting piece 301 so that the limiting piece 301 slides in the fixed box 2, and then the limiting piece 301 squeezes the support spring 302, so that the support spring 302 is compressed by force, and the locking block 303 on the limiting piece 301 disengages from the slot on the insertion rod 7, and then pull the top cover 6 so that the insertion rod 7 is pulled out from the fixed box 2;

[0041] The second step: When in use, since the sealing gasket 4 is stuck on the top surface of the box 1, the telescopic spring 501 is forced to contract and push the sealing gasket 4 in the opposite direction. The positioning telescopic rod 503 remains in the same position, so the sealing gasket 4 is tightly attached to the top surface of the box 1.

[0042] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0043] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser-based remote sensing device for drunk driving, comprising a housing (1), characterized in that: Two sets of fixing boxes (2) are fitted on both sides of the box (1). The fixing box (2) is slidably connected to a limit component (3). A sealing gasket (4) is snapped onto the top of the box (1). A support component (5) is fixedly connected to the top of the sealing gasket (4). A top cover (6) is fixedly connected to the top of the support component (5). The limiting component (3) includes a limiting piece (301) that is slidably connected inside the fixed box (2). One end of the limiting piece (301) is fixedly connected to two sets of support springs (302), and a locking block (303) is fixedly connected inside the limiting piece (301). The support assembly (5) includes several sets of telescopic springs (501) fixedly connected to the top of the sealing gasket (4). The top of the telescopic springs (501) is fixedly connected to a support frame (502), and the bottom of the support frame (502) is fixedly connected to several sets of positioning telescopic rods (503).

2. The laser-based remote sensing device for drunk driving according to claim 1, characterized in that: The inner top wall of the top cover (6) is fixedly connected with four sets of insert rods (7). The insert rods (7) are inserted into the inside of the fixed box (2). One end of the insert rod (7) is provided with a slot that matches the card block (303).

3. The laser-based remote sensing device for drunk driving according to claim 1, characterized in that: One end of the limiting piece (301) is fixedly connected to a sliding rod (8), which is sleeved inside the support spring (302).

4. The laser-based remote sensing device for drunk driving according to claim 1, characterized in that: Both sides of the fixed box (2) are fixedly connected with connecting pieces (9), and threaded holes are opened on the surfaces of the connecting pieces (9) and the box body (1), and bolts (10) pass through the inside of the threaded holes.

5. The laser-based remote sensing device for drunk driving according to claim 1, characterized in that: The inner bottom wall of the box (1) is fixedly connected to a support plate (11), and a number of reflectors (12) are provided on the top of the support plate (11), and a transmission reflector (21) is provided on the top of the support plate (11).

6. The laser-based remote sensing device for drunk driving according to claim 5, characterized in that: A tunable laser (13) is provided on the top surface of the support plate (11), and a photodetector (14) is provided on the top surface of the support plate (11).

7. A laser-based remote sensing device for drunk driving according to claim 5, characterized in that: The top surface of the support plate (11) is provided with an off-axis parabolic mirror (15), the top surface of the support plate (11) is provided with a spectral calculation board (16), and the top surface of the support plate (11) is provided with an indicator light (19).

8. A laser-based remote sensing device for drunk driving according to claim 5, characterized in that: The top surface of the top cover (6) is fixedly connected to a handle (17), and the top of the fixing box (2) is provided with a socket that is compatible with the plug (7).

9. A laser-based remote sensing device for drunk driving according to claim 1, characterized in that: The inner wall of the housing (1) is provided with a cooling fan (18), and a dustproof net is provided on one side of the cooling fan (18).

10. A laser-based remote sensing device for drunk driving according to claim 1, characterized in that: The surface of the housing (1) is provided with a detection lens (20), and the two sides of the housing (1) are provided with mounting grooves that are compatible with the fixing box (2).

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