Vehicle-mounted optical visibility measuring device

Abstract

The invention relates to the technical field of visibility measurement, and discloses a vehicle-mounted optical visibility measuring device which comprises a measuring instrument, an adjusting mechanism, fixing blocks symmetrically connected to the outer wall of the measuring instrument, and adjusting assemblies arranged on the sides, away from the measuring instrument, of the fixing blocks. The mounting mechanism comprises a mounting frame arranged on the adjusting assembly and a mounting assembly arranged on the outer side of the mounting frame, external force generated when the measuring instrument is bumped by a vehicle is reduced through the adjusting mechanism, and the situation that optical elements of the transmitting end and the receiving end generate tiny displacement due to vibration of the measuring instrument is avoided; according to the measuring instrument, the situation that the position of the transmitting lens or the receiving lens deviates, the direction of transmitted light is changed, a receiving end cannot accurately receive scattered light which should be received originally, consequently, the strength and angle measurement of optical signals are affected, and finally the measurement result deviates is prevented, and the accuracy of the measurement result of the measuring instrument is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of visibility measurement, and particularly to a vehicle-mounted optical visibility measurement device. Background Art

[0002] Visibility measurement is a quantitative determination of atmospheric transparency. For determining visibility under specific meteorological conditions, visibility measurement is mainly based on the definition of meteorological optical range, that is, when the brightness contrast between a target object and its background decreases to a certain extent, the distance at which the human eye can just distinguish the target object from the background. Common visibility measurement instruments include transmissive visibility meters and scattering visibility meters. The transmissive visibility meter calculates visibility by measuring the attenuation degree of light between a transmitting end and a receiving end at a known distance; the scattering visibility meter calculates visibility by measuring the scattering characteristics of particles in the atmosphere to light, and it can be divided into forward scattering type and backward scattering type. Among them, the forward scattering type visibility meter is more widely used, with advantages such as high measurement accuracy and fast response speed, and can continuously measure visibility data in real time.

[0003] A Chinese invention patent with the publication number CN203063879U discloses a vehicle speed warning device based on a laser backscattering visibility meter, including: a laser emitter, a receiving telescope, a first single-chip microcomputer, a power supply, a second single-chip microcomputer, a third single-chip microcomputer, a wireless receiving module, a voice prompter, an LED display screen, buttons, a switch, and a device housing; the laser emitter, the receiving telescope, the first single-chip microcomputer, the power supply, the second single-chip microcomputer, the third single-chip microcomputer, the wireless receiving module, and the voice prompter are installed in the device housing, and the receiving telescope, the first single-chip microcomputer, the second single-chip microcomputer, and the third single-chip microcomputer are connected in sequence; the wireless receiving module, the buttons, and the switch are respectively connected to the third single-chip microcomputer; the output end of the third single-chip microcomputer is connected to the voice prompter and the LED display screen; the power supply powers the system. This device can timely prompt the driver of a vehicle traveling on a highway to control the vehicle speed below the accident safety limit speed under foggy conditions, avoiding traffic accidents of single or multiple vehicles.

[0004] In addition, since the vehicle needs to adjust the fixed position of the measuring device when driving to different locations, in order to enable the device to quickly reach the areas where visibility needs to be measured, such as different sections of highways, remote mountain roads, different corners of cities, etc., the device cannot expand the measurement range of the measuring device, nor can it obtain more comprehensive and diverse visibility data, resulting in inaccurate measurement results. During the driving process of the vehicle, it is inevitable to encounter bumpy sections. When the vehicle bumps, it is easy to drive the measuring device to bump synchronously. This not only changes the direction of the emitted light inside the measuring device, and the receiving end cannot accurately receive the scattered light that should have been received originally, but also causes cracks or breakage in the device components themselves, affecting the measurement performance of the measuring device. Therefore, a vehicle-mounted speed warning device based on a laser backscattering visibility measuring instrument disclosed in Chinese Invention Patent CN203063879U cannot obtain comprehensive and diverse visibility data, nor can it guarantee the working performance of the measuring device. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a vehicle-mounted optical visibility measuring device, which has advantages such as shock absorption and protection, and solves the problems of inaccurate measurement results and easy damage of the measuring device.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solutions: A vehicle-mounted optical visibility measuring device, including a measuring instrument,

[0009] An adjusting mechanism, including fixing blocks symmetrically connected to the outer wall of the measuring instrument, and an adjusting component arranged on the side of the fixing block away from the measuring instrument;

[0010] An installation mechanism, including an installation frame arranged on the adjusting component, and an installation component arranged on the outside of the installation frame.

[0011] Preferably, the adjusting component includes a first connecting plate fixedly connected to one end of the fixing block away from the measuring instrument. A first groove is opened inside the first connecting plate. One end of the first connecting plate is rotatably connected to a first adjusting plate. Second grooves are symmetrically opened inside the first adjusting plate. One end of the first adjusting plate away from the first connecting plate is rotatably connected to a second connecting plate. A first limiting plate is fixedly connected to the outer wall of the second connecting plate close to the first connecting plate.

[0012] Preferably, the bottom end of the first limiting plate is arc-shaped and offset toward the side close to the first connecting plate, and the first adjusting plate is inclined downward from the first connecting plate toward the second connecting plate.

[0013] Preferably, the adjustment assembly also includes an adjustment plate 2 rotatably connected to the bottom end of the connecting plate 2, a groove 3 is symmetrically opened inside the adjustment plate 2, the bottom end of the limit plate 1 is rotatably connected to a telescopic rod 1, the outer wall of the telescopic rod 1 is symmetrically fixedly connected to the limit plate 2, a spring 1 is fixedly connected between the two limit plates 2, and a connecting rod 1 is fixedly connected to the outer wall of the connecting plate 2 away from the connecting plate 1.

[0014] Preferably, the second adjustment plate is arranged parallel to the first adjustment plate, the end of the second limit plate away from the first limit plate is rotatably connected to the inner wall of the groove, and the size of the first spring is adapted to the size of the fixed end of the telescopic rod.

[0015] Preferably, the mounting mechanism includes a mounting slot plate 1 which is symmetrically fixedly connected to the outer wall of the mounting frame, a mounting slot plate 2 which is slidably connected inside the mounting slot plate 1, a limiting block which is symmetrically fixedly connected to the inner wall of the mounting slot plate 2, a suction cup plate which is fixedly connected to the bottom end of the mounting slot plate 2, and a telescopic rod 2 which is symmetrically fixedly connected to the top end of the mounting slot plate 1.

[0016] Preferably, the fixed end of the second telescopic rod slides through the top end of the second mounting slot plate, the mounting frame is fixed on the outer wall of the first connecting rod, and the mounting assembly is made of rubber.

[0017] Preferably, the mounting assembly further comprises a resistance plate fixedly connected to the outer wall of the fixed end of the telescopic rod 2, a spring 2 is sleeved on the outer wall of the telescopic end of the telescopic rod 2, a connecting rod 2 is fixedly connected to the top end of the telescopic rod 2, a connecting rod 3 is passed through and fixedly connected to the middle inner wall of the connecting rod 2, a piston plate is fixedly connected to the bottom end of the connecting rod 3, and an arc plate is fixedly connected to the top end of the connecting rod 3.

[0018] Preferably, the diameter of the abutment plate is larger than the diameter of the second fixed end of the telescopic rod, and the two ends of the second spring are fixedly connected to the abutment plate and the first mounting slot plate respectively.

[0019] Preferably, the size of the piston plate is matched with the size of the inner cavity of the second mounting groove plate, and a sealing strip is provided on the side of the piston plate that contacts the inner wall of the second mounting groove plate.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention provides a vehicle-mounted optical visibility measuring device, which has the following beneficial effects:

[0022] 1. The adjusting mechanism reduces the external force on the measuring instrument when the vehicle jolts, avoiding the vibration of the measuring instrument that causes small displacements of the optical elements at the transmitting end and the receiving end, preventing the position of the transmitting lens or the receiving lens from shifting, changing the direction of the transmitted light, and the receiving end being unable to accurately receive the scattered light that should have been received originally, thus affecting the intensity and angle measurement of the optical signal and ultimately resulting in deviation of the measurement result. Furthermore, the accuracy rate of the measurement result of the measuring instrument is ensured.

[0023] 2. The adjusting mechanism reduces the jolting force on the measuring instrument, avoiding the loosening of the fixing components of the optical elements such as lenses and mirrors due to the long-term strong vibration of the measuring instrument, preventing problems such as cracks or breakage of the elements themselves, and thus avoiding damage to the optical elements, whose optical properties such as light transmittance and reflectance will change. That is, it ensures the transmission and processing of optical signals and also ensures the working performance of the measuring instrument.

[0024] 3. The installation mechanism enables the rapid installation and removal of the measuring instrument, avoiding the consumption of a large amount of labor and time required for adjusting the measuring position of the measuring instrument multiple times. At the same time, there is no need for complex infrastructure construction and long-term installation and debugging like a fixed measuring device. Just fix the measuring device on the vehicle and connect the relevant lines, and the installation can be quickly completed and put into use, greatly improving the work efficiency. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0026] Figure 2 It is a schematic diagram of a partial structure of an adjusting component in a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the first connecting plate and the second connecting plate in a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the first groove and the first telescopic rod in a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0029] Figure 5 It is a schematic diagram of a partial structure of an installation component in a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the suction cup plate and the third connecting rod in a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0031] Figure 7Schematic diagram of the second telescopic rod and the piston plate in a vehicle-mounted optical visibility measuring device proposed by the present invention;

[0032] Figure 8 Schematic diagram of the contact plate and the second mounting groove plate in a vehicle-mounted optical visibility measuring device proposed by the present invention.

[0033] In the figure: 101, measuring instrument; 200, adjusting mechanism; 201, fixing block; 202, adjusting component; 2031, first connecting plate; 2032, first groove; 2033, first adjusting plate; 2034, second groove; 2035, second connecting plate; 2036, first limiting plate; 2037, second adjusting plate; 2038, third groove; 2039, first telescopic rod; 20310, second limiting plate; 20311, first spring; 20312, first connecting rod; 300, mounting mechanism; 301, mounting frame; 302, mounting component; 3031, first mounting groove plate; 3032, second mounting groove plate; 3033, limiting block; 3034, sucker plate; 3035, second telescopic rod; 3036, contact plate; 3037, second spring; 3038, second connecting rod; 3039, third connecting rod; 30310, piston plate; 30311, arc plate. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment:

[0036] Referring to the attached Figures 1 to 8 As shown, a vehicle-mounted optical visibility measuring device includes a measuring instrument 101,

[0037] The adjusting mechanism 200 includes fixing blocks 201 symmetrically connected to the outer wall of the measuring instrument 101, and an adjusting component 202 provided on the side of the fixing block 201 away from the measuring instrument 101;

[0038] The mounting mechanism 300 includes a mounting frame 301 provided on the adjusting component 202, and a mounting component 302 provided on the outside of the mounting frame 301.

[0039] Further, the adjusting component 202 includes a first connecting plate 2031 fixedly connected to one end of the fixed block 201 away from the measuring instrument 101. A first groove 2032 is formed inside the first connecting plate 2031. The top end of the first connecting plate 2031 is rotatably connected to a first adjusting plate 2033. Second grooves 2034 are symmetrically formed inside the first adjusting plate 2033. One end of the first adjusting plate 2033 away from the first connecting plate 2031 is rotatably connected to a second connecting plate 2035. The first adjusting plate 2033 slopes downward along the first connecting plate 2031 toward the side of the second connecting plate 2035. A first limiting plate 2036 is fixedly connected to the outer wall of the second connecting plate 2035 close to the first connecting plate 2031. The bottom end of the first limiting plate 2036 is arc-shaped and offset toward the side close to the first connecting plate 2031.

[0040] Further, the adjusting component 202 further includes a second adjusting plate 2037 rotatably connected to the bottom end of the second connecting plate 2035. The second adjusting plate 2037 is arranged in parallel with the first adjusting plate 2033. Third grooves 2038 are symmetrically formed inside the second adjusting plate 2037. The bottom end of the first limiting plate 2036 is rotatably connected to a first telescopic rod 2039. Second limiting plates 20310 are symmetrically fixedly connected to the outer wall of the first telescopic rod 2039. One end of the second limiting plates 20310 away from the first limiting plate 2036 is rotatably connected to the inner wall of the first groove 2032. A first spring 20311 is fixedly connected between the two second limiting plates 20310. The size of the first spring 20311 is adapted to the size of the fixed end of the first telescopic rod 2039. A first connecting rod 20312 is fixedly connected to the outer wall of the second connecting plate 2035 away from the first connecting plate 2031.

[0041] It should be noted that: the first telescopic rod 2039 slopes downward from the side of the first connecting plate 2031 toward the side of the second connecting plate 2035. The third groove 2038 and the bottom end of the first telescopic rod 2039 are on the same vertical plane to prevent the third groove 2038 from interfering with the first telescopic rod 2039 during the movement.

[0042] Further, the mounting mechanism 300 includes first mounting groove plates 3031 symmetrically and fixedly connected to the outer wall of the mounting frame 301. The mounting frame 301 is fixed to the outer wall of the first connecting rod 20312. A second mounting groove plate 3032 is slidably connected inside the first mounting groove plate 3031. The mounting component 302 is made of rubber. Second limiting blocks 3033 are symmetrically and fixedly connected to the inner wall of the second mounting groove plate 3032. A suction cup plate 3034 is fixedly connected to the bottom end of the second mounting groove plate 3032. Second telescopic rods 3035 are symmetrically and fixedly connected to the top end of the first mounting groove plate 3031. The fixed ends of the second telescopic rods 3035 penetrate and slide on the top end of the second mounting groove plate 3032.

[0043] Further, the installation component 302 further includes a contact plate 3036 fixedly connected to the outer wall of the fixed end of the second telescopic rod 3035. The diameter of the contact plate 3036 is larger than the diameter of the fixed end of the second telescopic rod 3035. A second spring 3037 is sleeved on the outer wall of the telescopic end of the second telescopic rod 3035. The two ends of the second spring 3037 are respectively fixedly connected to the contact plate 3036 and the first installation groove plate 3031. The top of the second telescopic rod 3035 is fixedly connected to a second connecting rod 3038. A third connecting rod 3039 is fixedly connected through the inner wall of the middle of the second connecting rod 3038. The bottom end of the third connecting rod 3039 is fixedly connected to a piston plate 30310. A sealing strip is arranged on one side of the piston plate 30310 that abuts against the inner wall of the second installation groove plate 3032. The size of the piston plate 30310 is adapted to the inner cavity size of the second installation groove plate 3032. The top end of the third connecting rod 3039 is fixedly connected to an arc plate 30311.

[0044] It should be noted that: under the elastic action of the second spring 3037, the piston plate 30310 is driven by the second telescopic rod 3035 and the third connecting rod 3039 to be above the limit block 3033.

[0045] The working process and principle of the above embodiment are as follows:

[0046] Initial state: The measuring instrument 101 and the first connecting plate 2031 are relatively stationary with the second connecting plate 2035 under the elastic action of the first spring 20311. The first spring 20311 is in a semi-stretched state, the second adjusting plate 2037 is in a semi-extended state, the second adjusting plate 2037 is in a semi-compressed state, the second telescopic rod 3035 is in a semi-contracted state, and the suction cup plate 3034 is in a natural and relaxed state.

[0047] The working steps are as follows:

[0048] The operator places the device on the vehicle according to requirements, making the suction cup plate 3034 contact the vehicle. Subsequently, the operator starts to press down on the arc plate 30311, causing the arc plate 30311 to move towards one side of the mounting groove plate one 3031, making the arc plate 30311 drive the connecting rod three 3039 to move synchronously, making the connecting rod three 3039 drive the connecting rod two 3038 to move synchronously, making the connecting rod two 3038 squeeze the telescopic rod two 3035, causing the telescopic rod two 3035 to start contracting downward, making the telescopic rod two 3035 synchronously squeeze the spring two 3037 through the contact plate 3036 until the connecting rod three 3039 drives the piston plate 30310 to abut against the limit block 3033, making the limit block 3033 drive the mounting groove plate two 3032 to slide downward inside the mounting groove plate one 3031 under the abutting action of the piston plate 30310, making the mounting groove plate two 3032 drive the suction cup plate 3034 to abut against the vehicle, making the suction cup plate 3034 start to deform, making the gas inside the suction cup plate 3034 be discharged out of the body, and thus making the air pressure inside the suction cup plate 3034 gradually decrease. Until the suction cup plate 3034 is attracted to the vehicle, at this time the operator no longer squeezes the arc plate 30311, making the piston plate 30310 and the connecting rod three 3039 move upward inside the mounting groove plate two 3032 under the elastic action after the spring two 3037 is compressed, making the space between the piston plate 30310 and the suction cup plate 3034 gradually increase. According to the ideal gas state equation pV = nRT, where p is the gas pressure, V is the gas volume, n is the amount of substance of the gas, R is the universal gas constant, and T is the thermodynamic temperature, it can be known that the air pressure between the piston plate 30310 and the suction cup plate 3034 gradually decreases, and thus making the suction cup plate 3034 be fixed to the vehicle under the action of the external air pressure. The measuring instrument 101 can be quickly installed and disassembled through the installation mechanism 300, avoiding the consumption of a large amount of labor and time when adjusting the measuring position of the measuring instrument 101 multiple times. At the same time, there is no need for complex infrastructure construction and long-time installation and debugging like a fixed measuring device. Just fix the measuring device on the vehicle and connect the relevant lines, and the installation can be quickly completed and put into use, greatly improving the work efficiency.

[0049] After the device is fixed to the vehicle, when the vehicle travels on a bumpy road section, the vehicle will jolt up and down at this time, causing the installation mechanism 300 to jolt up and down synchronously, causing the mounting bracket 301 to drive the first connecting rod 20312 to jolt synchronously, causing the first connecting rod 20312 to drive the second connecting plate 2035 to move synchronously. During the process of the second connecting plate 2035 starting to move downward, the second connecting plate 2035 drives the first limiting plate 2036 to move downward synchronously, causing the second connecting plate 2035 to drive the first adjusting plate 2033 and the second adjusting plate 2037 rotatably connected thereto to move synchronously, causing the ends of the first adjusting plate 2033 and the second adjusting plate 2037 away from the first connecting plate 2031 to start flipping downward synchronously. During the movement of the first limiting plate 2036, the first limiting plate 2036 drives the first telescopic rod 2039 rotatably connected thereto to extend while rotating downward, and further causes the first telescopic rod 2039 to drive the second limiting plate 20310 connected to the fixed end to move synchronously, causing the second limiting plate 20310 to stretch the first spring 20311 during the rotation process, and further causing the first spring 20311 to have a greater elasticity after stretching. Then, the first spring 20311 with increased elasticity converts the external wall forces received by the first limiting plate 2036 and the second connecting plate 2035, thereby reducing the external force on the measuring instrument 101 caused by the vehicle jolting, avoiding the micro-displacement of the optical elements at the transmitting end and the receiving end due to the vibration of the measuring instrument 101, preventing the position of the transmitting lens or the receiving lens from shifting, causing the direction of the transmitted light to change, and the receiving end being unable to accurately receive the scattered light that should originally be received, thus affecting the intensity and angle measurement of the optical signal, and ultimately resulting in a deviation in the measurement result. Furthermore, the accuracy of the measurement result of the measuring instrument 101 is ensured. By means of the adjusting mechanism 200, the jolting force received by the measuring instrument 101 is reduced, avoiding the loosening of the fixing components of optical elements such as lenses and mirrors due to the long-term strong vibration of the measuring instrument 101, preventing problems such as cracks or breakage of the elements themselves, and thus avoiding damage to the optical elements. Their optical properties such as light transmittance and reflectivity will change, that is, the transmission and processing of optical signals are ensured, and the working performance of the measuring instrument 101 is also ensured.

[0050] It should be noted that the term "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article, or device including the said element.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted optical visibility measuring device, including a measuring instrument (101), characterized in that: An adjusting mechanism (200), including fixing blocks (201) symmetrically connected to the outer wall of the measuring instrument (101), and an adjusting component (202) arranged on the side of the fixing block (201) away from the measuring instrument (101); A mounting mechanism (300), including a mounting frame (301) arranged on the adjusting component (202), and a mounting component (302) arranged on the outside of the mounting frame (301).

2. The on-vehicle optical visibility measuring device according to claim 1, characterized in that: The adjusting component (202) includes a connecting plate one (2031) fixedly connected to one end of the fixing block (201) away from the measuring instrument (101). A groove one (2032) is opened inside the connecting plate one (2031). The top end of the connecting plate one (2031) is rotatably connected to an adjusting plate one (2033). Grooves two (2034) are symmetrically opened inside the adjusting plate one (2033). One end of the adjusting plate one (2033) away from the connecting plate one (2031) is rotatably connected to a connecting plate two (2035). A limiting plate one (2036) is fixedly connected to the outer wall of the connecting plate two (2035) close to the connecting plate one (2031).

3. The on-vehicle optical visibility measuring device according to claim 2, characterized in that: The bottom end of the limiting plate one (2036) is in an arc shape offset toward the side close to the connecting plate one (2031), and the adjusting plate one (2033) inclines downward along the connecting plate one (2031) toward the side of the connecting plate two (2035).

4. An on-vehicle optical visibility measuring device according to claim 2, characterized in that: The adjusting component (202) further includes an adjusting plate two (2037) rotatably connected to the bottom end of the connecting plate two (2035). Grooves three (2038) are symmetrically opened inside the adjusting plate two (2037). The bottom end of the limiting plate one (2036) is rotatably connected to a telescopic rod one (2039). Limiting plates two (20310) are symmetrically fixedly connected to the outer wall of the telescopic rod one (2039). A spring one (20311) is fixedly connected between the two limiting plates two (20310). A connecting rod one (20312) is fixedly connected to the outer wall of the connecting plate two (2035) away from the connecting plate one (2031).

5. The vehicle-mounted optical visibility measuring device according to claim 4, wherein: The adjusting plate two (2037) is arranged in parallel with the adjusting plate one (2033). One end of the limiting plate two (20310) away from the limiting plate one (2036) is rotatably connected to the inner wall of the groove one (2032), and the size of the spring one (20311) is adapted to the size of the fixed end of the telescopic rod one (2039).

6. The vehicle-mounted optical visibility measuring device according to claim 4, characterized in that: The mounting mechanism (300) includes mounting groove plates one (3031) symmetrically and fixedly connected to the outer wall of the mounting frame (301). A mounting groove plate two (3032) is slidably connected inside the mounting groove plate one (3031). Limiting blocks (3033) are symmetrically and fixedly connected to the inner wall of the mounting groove plate two (3032). A suction cup plate (3034) is fixedly connected to the bottom end of the mounting groove plate two (3032). Telescopic rods two (3035) are symmetrically and fixedly connected to the top end of the mounting groove plate one (3031).

7. An on-vehicle optical visibility measuring device according to claim 6, characterized in that: The fixed end of the second telescopic rod (3035) penetrates and slides through the top end of the second mounting groove plate (3032), the mounting frame (301) is fixed on the outer wall of the first connecting rod (20312), and the mounting component (302) is made of rubber.

8. An on-vehicle optical visibility measuring device according to claim 6, characterized in that: The mounting component (302) further includes a contact plate (3036) fixedly connected to the outer wall of the fixed end of the second telescopic rod (3035). A second spring (3037) is sleeved on the outer wall of the telescopic end of the second telescopic rod (3035). The top end of the second telescopic rod (3035) is fixedly connected to a second connecting rod (3038). A third connecting rod (3039) is fixedly connected through the inner wall of the middle part of the second connecting rod (3038). The bottom end of the third connecting rod (3039) is fixedly connected to a piston plate (30310), and the top end of the third connecting rod (3039) is fixedly connected to an arc-shaped plate (30311).

9. The on-vehicle optical visibility measuring device according to claim 8, wherein: The diameter of the contact plate (3036) is larger than the diameter of the fixed end of the second telescopic rod (3035). The two ends of the second spring (3037) are respectively fixedly connected to the contact plate (3036) and the first mounting groove plate (3031).

10. The on-vehicle optical visibility measuring device according to claim 8, wherein: The size of the piston plate (30310) is adapted to the inner cavity size of the second mounting groove plate (3032). A sealing strip is provided on the side of the piston plate (30310) that contacts the inner wall of the second mounting groove plate (3032).

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