Quick-release highway agglomerate fog monitoring device

Abstract

The invention belongs to the field of agglomerate fog monitoring, and particularly discloses a quick release type highway agglomerate fog monitoring device which comprises a quick release mechanism, a visibility detection mechanism, a wind speed sensing detection mechanism and a mounting rod. The near-ground visibility can feed back the influence degree of the severe weather on the traffic, and the transverse movement speed relative to the road feeds back the influence duration of the severe weather on the traffic, so that the visibility detection mechanism disclosed by the invention feeds back the visibility of the detected space through the scattering rate of laser when the laser is propagated in the air; the detection mode has the characteristics of good real-time performance and high accuracy, and meanwhile, the movement speed of the agglomerate fog can be detected through the wind speed sensing detection mechanism which only senses transverse air flow, so that a prediction basis is provided for traffic guidance.

Description

Technical Field

[0001] The invention belongs to the technical field of fog monitoring, and in particular relates to a quick-detachable highway fog monitoring device. Background Art

[0002] "Cluster fog" is also called clumps of fog. It is essentially fog. It is affected by the microclimate environment of the local area. In the heavy fog, a thicker fog with lower visibility appears in a local area of ​​tens to hundreds of meters. The visibility is good outside the cluster fog, but it is hazy inside the cluster fog. Cluster fog is highly regional and difficult to predict. Especially on highways, cluster fog can cause sudden changes in visibility, which is extremely harmful to highway traffic safety and easily leads to major traffic accidents.

[0003] It is difficult to monitor fog with ordinary weather forecast monitoring methods. Therefore, in areas and seasons where fog is prevalent, a dedicated fog monitoring device can be used to detect it. The main difficulties encountered during the detection process are as follows: A: Fog is highly regional and therefore difficult to detect via satellite. It is best monitored using dedicated devices mounted on highway signal poles. B: Since fog is seasonal and the laser transmitters and receivers used for detection are relatively expensive, the best way is to install them at the required locations during the required period through circulation. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a quick-detachable highway fog monitoring device. The near-ground visibility and moving speed of the fog are the two most important factors. The near-ground visibility can feedback the impact of such bad weather on traffic, and the lateral moving speed relative to the road can feedback the duration of the impact of such bad weather on traffic. Therefore, the present invention discloses a visibility detection mechanism, which feeds back the visibility of the measured space through the scattering rate of laser when it propagates in the air. This detection method has the characteristics of good real-time performance and high accuracy. At the same time, it can also detect the moving speed of the fog through a wind speed sensing detection mechanism that only senses lateral air flow, thereby providing a prediction basis for traffic control.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a quick-release highway fog monitoring device, including a quick-release mechanism, a visibility detection mechanism, a wind speed sensing detection mechanism and a mounting rod, wherein the quick-release mechanism is arranged on the mounting rod, the visibility detection mechanism is arranged on the quick-release mechanism, and the wind speed sensing detection mechanism is arranged on the visibility detection mechanism.

[0006] Furthermore, the quick-release mechanism includes a double-circuit clamping assembly, a locking support assembly and a rotational preload assembly, the double-circuit clamping assembly is arranged on the mounting rod, the locking support assembly is arranged on the double-circuit clamping assembly, and the rotational preload assembly is arranged on the locking support assembly.

[0007] The quick-release mechanism can be used to quickly complete the installation and disassembly of the device, thereby meeting the circulation and use requirements of the device that requires seasonal replacement of the installation ground.

[0008] Preferably, the double-clasp clamping assembly includes an elastic clasp one and an elastic clasp two, wherein the elastic clasp one and the elastic clasp two half-wrap the mounting rod from the upper and lower directions respectively, an array of adjustment ratchets is provided on the elastic clasp one, and the directions of the adjustment ratchets on both sides of the elastic clasp one are symmetrically arranged, and elastic clamping platforms are provided at both ends of the elastic clasp two, and locking ratchet grooves matching the adjustment ratchets are provided on the elastic clasp two.

[0009] Since both the first elastic clamp ring and the second elastic clamp ring have a certain elasticity, when installed on mounting rods with different outer diameters, the operation mode of the double clamp ring clamping assembly is the same and the same fixing effect can be achieved.

[0010] The locking ratchet groove on the elastic clamping table can cooperate with the adjusting ratchet to complete the relative position fixation and locking between the elastic clamping ring 1 and the elastic clamping ring 2. The elastic clamping ring 1 and the elastic clamping ring 2 together form a circular ring with a certain pressure, so that the device can be installed and fixed on the mounting rod.

[0011] As a further preferred embodiment of the present invention, the locking support assembly includes a fixed sleeve and a preload shaft, the fixed sleeve is fixedly connected to the top end of an elastic retaining ring, a polygonal through hole is provided on the fixed sleeve, and the preload shaft consists of a polygonal cylinder, a circular shaft portion, a baffle portion and a handle portion, the baffle portion, the circular shaft portion, the polygonal cylinder and the handle portion are arranged in sequence, the size of the polygonal cylinder matches the polygonal through hole, and the diameter of the circular shaft portion is equal to the diameter of the inscribed circle of the polygonal through hole.

[0012] The locking support assembly can complete the rotation and locking of the preload shaft by plugging and pulling. Since the diameter of the circular shaft is equal to the diameter of the inscribed circle of the polygonal through hole, there is no clearance when the circular shaft rotates in the polygonal through hole, thereby achieving stable axial plugging and pulling of the preload shaft and avoiding the bending of the preload shaft caused by the elastic force of the tensioning rope.

[0013] Preferably, the rotary pretensioning assembly includes a winding sleeve and a tensioning rope, the winding sleeve is slidably engaged on the polygonal cylinder, the tensioning rope is wound on the winding sleeve, and both ends of the tensioning rope are respectively fixed to the elastic clamping table, and the tensioning ropes at both ends are synchronously tightened or released when the winding sleeve rotates.

[0014] By synchronously tightening or releasing the tensioning rope, the sliding of the elastic clamping platform on the adjusting ratchet can be promoted, thereby increasing the preload force between the elastic clamping ring 1 and the elastic clamping ring 2. When the preload force between the elastic clamping ring 1 and the elastic clamping ring 2 is increased, the elastic clamping ring 1 and the elastic clamping ring 2 will inevitably be pressed and fit the outer surface of the mounting rod, thereby completing the fixation.

[0015] Furthermore, the visibility detection mechanism includes a frame assembly and a detection assembly, and the detection assembly is arranged on the frame assembly.

[0016] Preferably, the frame assembly comprises a crossbar portion and a longitudinal bar portion, the crossbar portion is fixedly connected to an elastic clamp ring 1, and the crossbar portion is elastic.

[0017] The crossbar portion has only a small degree of elasticity and can deform to a certain extent when the elastic clamp is deformed. However, since the deformation of the crossbar portions on both sides is always symmetrical, it will not cause the top plate and the bottom plate to deviate.

[0018] As a further preferred embodiment of the present invention, the detection component includes a base plate, a laser generator and a laser receiver, the base plate is arranged on the longitudinal rod part, the laser generator is arranged below the base plate, and the laser receiver is arranged below the base plate, and the light emitted by the laser generator can enter the laser receiver after bouncing off the ground.

[0019] The intensity of light is sensed by the laser receiver, which can provide feedback on the visibility in the air and determine whether there is fog at the current measurement location.

[0020] Furthermore, the wind speed sensing detection mechanism includes a wind shield component and a rotation sensing component, the wind shield component is arranged on the longitudinal rod portion, and the rotation sensing component is arranged on the wind shield component.

[0021] Preferably, the wind shield assembly comprises a top plate and an arc-shaped baffle, wherein the top plate is arranged on the longitudinal rod portion, and the arc-shaped baffle is fixedly connected to the top plate, and the arc-shaped baffle is symmetrically arranged in two groups.

[0022] As a further preferred embodiment of the present invention, the rotation sensing component includes a rotating main shaft and a rotating disc, the rotating main shaft is arranged on the top plate, the rotating disc is provided with a sleeve portion, the rotating disc is rotatably arranged on the rotating main shaft through the sleeve portion, and the rotating disc is provided with angled fan blades evenly distributed in an annular shape.

[0023] The rotation of the rotating disk can sense whether there is obvious air start at the current measurement position, thereby judging the time when the fog group passes. In order to avoid the influence of traffic on this measurement, an arc-shaped baffle is set to ensure that only the airflow perpendicular to the road will be sensed, and the airflow along the road will not be sensed.

[0024] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The quick-release mechanism enables the device to be quickly installed and disassembled, thereby meeting the circulation and use needs of the device that requires seasonal replacement of the installation ground.

[0025] (2) Since both the elastic clamp ring 1 and the elastic clamp ring 2 have a certain elasticity, when installed on mounting rods with different outer diameters, the operation method of the double clamp ring clamping assembly is the same and the same fixing effect can be achieved.

[0026] (3) The locking ratchet groove on the elastic clamping table can cooperate with the adjusting ratchet to complete the relative position fixation and locking between the elastic clamping ring 1 and the elastic clamping ring 2. The elastic clamping ring 1 and the elastic clamping ring 2 together form a circular ring with a certain pressure, so that the device can be installed and fixed on the mounting rod.

[0027] (4) The locking support assembly can be used to complete the rotation and locking of the preload shaft by plugging and pulling. Since the diameter of the circular shaft portion is equal to the diameter of the inscribed circle of the polygonal through hole, there is no clearance when the circular shaft portion rotates in the polygonal through hole, thereby achieving the basic number of stable axial plugging and pulling of the preload shaft and avoiding the bending of the preload shaft caused by the elastic force of the tensioning rope.

[0028] (5) By synchronously tightening or releasing the tensioning rope, the sliding of the elastic clamping platform on the adjusting ratchet can be promoted, thereby increasing the preload force between the elastic clamping ring 1 and the elastic clamping ring 2. When the preload force between the elastic clamping ring 1 and the elastic clamping ring 2 is increased, the elastic clamping ring 1 and the elastic clamping ring 2 will inevitably be pressed and fit the outer surface of the mounting rod, thereby completing the fixation.

[0029] (6) The cross bar has only a small degree of elasticity and can deform to a certain extent when the elastic clamp is deformed. However, since the deformation of the cross bars on both sides is always symmetrical, it will not cause the top plate and the bottom plate to deviate.

[0030] (7) The intensity of light is sensed by the laser receiver, which can provide feedback on the visibility in the air and determine whether there is fog at the current measurement location.

[0031] (8) The rotation of the rotating disk can be used to sense whether there is obvious air start at the current measurement position, thereby determining the time when the fog group passes. In order to avoid the influence of traffic on this measurement, an arc-shaped baffle is set to ensure that only the airflow perpendicular to the road will be sensed, and the airflow along the road will not be sensed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional diagram of a quick-detachable highway fog monitoring device proposed by the present invention; Figure 2 This is a front view of a quick-detachable highway fog monitoring device proposed by the present invention; Figure 3 This is a left view of a quick-detachable highway fog monitoring device proposed by the present invention; Figure 4 A top view of a quick-detachable highway fog monitoring device proposed by the present invention; Figure 5 for Figure 2 A cross-sectional view along the cutting line AA; Figure 6 for Figure 5 A cross-sectional view along the cutting line BB; Figure 7 for Figure 5 A cross-sectional view along the cutting line CC; Figure 8 An exploded view of a quick-detachable highway fog monitoring device proposed by the present invention; Fig. 9 for Figure 6 A partial enlarged view of point Ⅰ in the middle; Fig.10 for Figure 5 A partial enlarged view of the middle II; Fig.11 for Figure 8 A partial enlarged view of point III in the middle.

[0033] Among them, 1. quick release mechanism, 2. visibility detection mechanism, 3. wind speed sensing detection mechanism, 4. mounting rod, 5. double clamping ring clamping assembly, 6. locking support assembly, 7. rotation preload assembly, 8. elastic clamping ring 1, 9. elastic clamping ring 2, 10. fixed sliding sleeve, 11. preload shaft, 12. winding sleeve, 13. tensioning rope, 14. adjusting ratchet, 15. elastic clamping table, 16. locking ratchet groove, 17. polygonal through hole, 1 8. Polygonal cylinder, 19. Circular shaft portion, 20. Baffle portion, 21. Handle portion, 22. Frame assembly, 23. Detection assembly, 24. Crossbar portion, 25. Longitudinal bar portion, 26. Bottom plate, 27. Laser generator, 28. Laser receiver, 29. Wind shield assembly, 30. Rotation sensing assembly, 31. Top plate, 32. Arc baffle, 33. Rotating main shaft, 34. Rotating disc, 35. Sleeve portion, 36. Folding blade.

[0034] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0037] like Figure 1 to Figure 11 As shown, the present invention proposes a quick-release highway fog monitoring device, including a quick-release mechanism 1, a visibility detection mechanism 2, a wind speed sensing detection mechanism 3 and a mounting rod 4, the quick-release mechanism 1 is arranged on the mounting rod 4, the visibility detection mechanism 2 is arranged on the quick-release mechanism 1, and the wind speed sensing detection mechanism 3 is arranged on the visibility detection mechanism 2.

[0038] The quick release mechanism 1 includes a double snap ring clamping assembly 5, a locking support assembly 6 and a rotation preload assembly 7. The double snap ring clamping assembly 5 is arranged on the mounting rod 4, the locking support assembly 6 is arranged on the double snap ring clamping assembly 5, and the rotation preload assembly 7 is arranged on the locking support assembly 6.

[0039] The quick-release mechanism 1 can be used to quickly complete the installation and disassembly of the device, thereby meeting the circulation and use requirements of the device that requires seasonal replacement of the installation ground.

[0040] The double-clasp clamping assembly 5 includes an elastic clasp 18 and an elastic clasp 29, which semi-wrap the mounting rod 4 from the upper and lower directions respectively. An array of adjustment ratchets 14 is provided on the elastic clasp 8, and the directions of the adjustment ratchets 14 on both sides of the elastic clasp 8 are symmetrically arranged. Elastic clamping platforms 15 are provided at both ends of the elastic clasp 29, and locking ratchet grooves 16 matching the adjustment ratchets 14 are provided on the elastic clasp 15.

[0041] Since both the elastic snap ring 1 8 and the elastic snap ring 2 9 have a certain elasticity, when installed on the mounting rods 4 with different outer diameters, the operation mode of the double snap ring clamping assembly 5 is the same, and the same fixing effect can be achieved.

[0042] The locking ratchet groove 16 on the elastic clamping platform 15 can cooperate with the adjusting ratchet 14 to complete the relative position fixation and locking between the elastic clamping ring 1 8 and the elastic clamping ring 2 9. The elastic clamping ring 1 8 and the elastic clamping ring 2 9 together form a circular ring with a certain pressure, so that the device can be installed and fixed on the mounting rod 4.

[0043] The locking support assembly 6 includes a fixed sleeve 10 and a preload shaft 11. The fixed sleeve 10 is fixedly connected to the top end of an elastic retaining ring 8. A polygonal through hole 17 is provided on the fixed sleeve 10. The preload shaft 11 is composed of a polygonal cylinder 18, a circular shaft portion 19, a baffle portion 20 and a handle portion 21. The baffle portion 20, the circular shaft portion 19, the polygonal cylinder 18 and the handle portion 21 are arranged in sequence. The size of the polygonal cylinder 18 matches the polygonal through hole 17, and the diameter of the circular shaft portion 19 is equal to the diameter of the inscribed circle of the polygonal through hole 17.

[0044] The locking support assembly 6 can complete the rotation and locking of the preload shaft 11 by plugging and pulling. Since the diameter of the circular shaft portion 19 is equal to the diameter of the inscribed circle of the polygonal through hole 17, there is no clearance when the circular shaft portion 19 rotates in the polygonal through hole 17, thereby achieving stable axial plugging and pulling of the preload shaft 11 and avoiding the bending of the preload shaft 11 caused by the elastic force of the tensioning rope 13.

[0045] The rotary pretensioning assembly 7 includes a winding sleeve 12 and a tensioning rope 13. The winding sleeve 12 is slidably engaged on the polygonal cylinder 18. The tensioning rope 13 is wound on the winding sleeve 12. Both ends of the tensioning rope 13 are respectively fixed to the elastic clamping platform 15. The tensioning ropes 13 at both ends are tightened or released synchronously when the winding sleeve 12 rotates.

[0046] By synchronously tightening or releasing the tensioning rope 13, the sliding of the elastic clamping platform 15 on the adjusting ratchet 14 can be promoted, thereby increasing the preload force between the elastic clamping ring 1 8 and the elastic clamping ring 2 9. When the preload force between the elastic clamping ring 1 8 and the elastic clamping ring 2 9 increases, the elastic clamping ring 1 8 and the elastic clamping ring 2 9 will inevitably press and fit the outer surface of the mounting rod 4, thereby completing the fixation.

[0047] The visibility detection mechanism 2 includes a frame assembly 22 and a detection assembly 23 , and the detection assembly 23 is arranged on the frame assembly 22 .

[0048] The frame assembly 22 includes a crossbar portion 24 and a longitudinal bar portion 25. The crossbar portion 24 is fixed to an elastic clamp ring 8 and is elastic.

[0049] The crossbar portion 24 has only a small degree of elasticity and can also undergo a certain degree of deformation when the elastic clamp ring 8 is deformed. However, since the deformation of the crossbar portions 24 on both sides is always symmetrical, it will not cause the top plate 31 and the bottom plate 26 to deviate.

[0050] The detection component 23 includes a base plate 26, a laser generator 27 and a laser receiver 28. The base plate 26 is arranged on the longitudinal rod portion 25, the laser generator 27 is arranged below the base plate 26, and the laser receiver 28 is arranged below the base plate 26. The light emitted by the laser generator 27 can enter the laser receiver 28 after bouncing off the ground.

[0051] The intensity of the light is sensed by the laser receiver 28, and the visibility in the air can be fed back and measured, thereby determining whether there is fog at the current measurement location.

[0052] The wind speed sensing detection mechanism 3 includes a wind shield component 29 and a rotation sensing component 30 . The wind shield component 29 is disposed on the longitudinal rod portion 25 , and the rotation sensing component 30 is disposed on the wind shield component 29 .

[0053] The wind shielding assembly 29 includes a top plate 31 and an arc-shaped baffle 32 . The top plate 31 is disposed on the longitudinal rod portion 25 . The arc-shaped baffle 32 is fixedly connected to the top plate 31 . Two groups of the arc-shaped baffle 32 are symmetrically disposed.

[0054] The rotation sensing component 30 includes a rotating main shaft 33 and a rotating disc 34. The rotating main shaft 33 is arranged on the top plate 31. The rotating disc 34 is provided with a sleeve portion 35. The rotating disc 34 is rotatably arranged on the rotating main shaft 33 through the sleeve portion 35. The rotating disc 34 is evenly distributed with angled fan blades 36 in a ring shape.

[0055] The rotation of the rotating disk 34 can sense whether there is obvious air start at the current measurement position, so as to judge the time when the fog group passes. In order to avoid the influence of traffic on such measurement, an arc-shaped baffle 32 is provided to ensure that only the airflow perpendicular to the road will be sensed, and the airflow along the road will not be sensed.

[0056] When in use, the user first needs to select the mounting rod 4 across the highway, and wrap the mounting rod 4 from the upper and lower directions respectively through the elastic snap ring 1 8 and the elastic snap ring 2 9. At this time, the elastic clamping platform 15 forms a locking relationship through the locking ratchet groove 16 and the adjusting ratchet 14. Under the cooperation of the adjusting ratchet 14 and the locking ratchet groove 16, the circular ring formed by the elastic snap ring 1 8 and the elastic snap ring 2 9 can be tightened and will not be loosened. When the double-clamping ring clamping assembly 5 is pre-tightened to have a certain friction force with the mounting rod 4, the angles of the visibility detection mechanism 2 and the wind speed sensing detection mechanism 3 are adjusted by rotating the double-clamping ring clamping assembly 5 so that the light emitted by the laser generator 27 can be irradiated vertically onto the ground; Then pull out the preload shaft 11 so that the round shaft portion 19 is located in the polygonal through hole 17, and then rotate the preload shaft 11 to rotate the winding sleeve 12 and tighten the tensioning rope 13, thereby increasing the clamping force of the double clamping ring clamping assembly 5 on the mounting rod 4, thereby completing the fixation.

[0057] During the detection process, part of the light emitted by the laser generator 27 enters the laser generator 27 after being reflected by the ground. Since the distance from the laser generator 27 to the ground is fixed, during the propagation of light, the higher the concentration of fog and the lower the visibility, the weaker the light intensity received by the laser receiver 28. By sensing the light intensity by the laser receiver 28, the concentration of fog at the current measurement position can be known.

[0058] If the moving speed of the fog group is fast, a large airflow will inevitably be generated at the same time. In order to avoid the influence of vehicle turbulence, the airflow along the road will not blow the rotating disc 34 under the blocking of the arc baffle 32, while the lateral airflow will blow the rotating disc 34; In fact, there is no need to measure whether there is airflow along the road. Therefore, if the fog moves along the road, it will still affect the driving of vehicles. Therefore, it is only necessary to feedback the time when the fog passes the road through the lateral airflow.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A quick-detachable highway fog monitoring device, characterized in that: The device comprises a quick-release mechanism (1), a visibility detection mechanism (2), a wind speed sensing detection mechanism (3) and a mounting rod (4), wherein the quick-release mechanism (1) is arranged on the mounting rod (4), the visibility detection mechanism (2) is arranged on the quick-release mechanism (1), and the wind speed sensing detection mechanism (3) is arranged on the visibility detection mechanism (2); The quick-release mechanism (1) comprises a double-snapping clamping assembly (5), a locking support assembly (6) and a rotational pre-tightening assembly (7); the double-snapping clamping assembly (5) is arranged on the mounting rod (4), the locking support assembly (6) is arranged on the double-snapping clamping assembly (5), and the rotational pre-tightening assembly (7) is arranged on the locking support assembly (6).

2. The quick-detachable highway fog monitoring device according to claim 1 is characterized in that: The double-snapping clamping assembly (5) comprises an elastic snapping ring 1 (8) and an elastic snapping ring 2 (9), wherein the elastic snapping ring 1 (8) and the elastic snapping ring 2 (9) respectively half-wrap the mounting rod (4) from the upper and lower directions, the elastic snapping ring 1 (8) is provided with an array of adjustment ratchets (14), the adjustment ratchets (14) on both sides of the elastic snapping ring 1 (8) are symmetrically arranged, and elastic clamping platforms (15) are provided at both ends of the elastic snapping ring 2 (9), and locking ratchet grooves (16) matching the adjustment ratchets (14) are provided on the elastic clamping platform (15).

3. The quick-detachable highway fog monitoring device according to claim 2 is characterized in that: The locking support assembly (6) comprises a fixed sleeve (10) and a preload shaft (11), wherein the fixed sleeve (10) is fixedly connected to the top end of an elastic retaining ring (8), and a polygonal through hole (17) is provided on the fixed sleeve (10). The preload shaft (11) comprises a polygonal cylinder (18), a circular shaft portion (19), a baffle portion (20) and a handle portion (21), wherein the baffle portion (20), the circular shaft portion (19), the polygonal cylinder (18) and the handle portion (21) are arranged in sequence, wherein the size of the polygonal cylinder (18) matches the polygonal through hole (17), and the diameter of the circular shaft portion (19) is equal to the diameter of the inscribed circle of the polygonal through hole (17).

4. The quick-detachable highway fog monitoring device according to claim 3 is characterized in that: The rotary pre-tensioning assembly (7) comprises a winding sleeve (12) and a tensioning rope (13); the winding sleeve (12) is slidably mounted on a polygonal column (18); the tensioning rope (13) is wound around the winding sleeve (12); both ends of the tensioning rope (13) are respectively fixed to an elastic clamping table (15); and the tensioning ropes (13) at both ends are synchronously tightened or released when the winding sleeve (12) rotates.

5. The quick-detachable highway fog monitoring device according to claim 4 is characterized in that: The visibility detection mechanism (2) comprises a frame assembly (22) and a detection assembly (23), wherein the detection assembly (23) is arranged on the frame assembly (22).

6. The quick-detachable highway fog monitoring device according to claim 5 is characterized in that: The frame assembly (22) comprises a crossbar portion (24) and a longitudinal bar portion (25); the crossbar portion (24) is fixedly connected to an elastic clamping ring (8); and the crossbar portion (24) is elastic.

7. A quick-detachable highway fog monitoring device according to claim 6, characterized in that: The detection assembly (23) comprises a bottom plate (26), a laser generator (27) and a laser receiver (28); the bottom plate (26) is arranged on the longitudinal rod portion (25); the laser generator (27) is arranged below the bottom plate (26); and the laser receiver (28) is arranged below the bottom plate (26); light emitted by the laser generator (27) can enter the laser receiver (28) after being reflected by the ground.

8. The quick-detachable highway fog monitoring device according to claim 7 is characterized in that: The wind speed sensing detection mechanism (3) comprises a wind shield component (29) and a rotation sensing component (30); the wind shield component (29) is arranged on the longitudinal rod portion (25), and the rotation sensing component (30) is arranged on the wind shield component (29).

9. The quick-detachable highway fog monitoring device according to claim 8, characterized in that: The wind shield assembly (29) comprises a top plate (31) and an arc-shaped baffle (32), wherein the top plate (31) is arranged on the longitudinal rod portion (25), and the arc-shaped baffle (32) is fixedly connected to the top plate (31), and two groups of the arc-shaped baffle (32) are symmetrically arranged.

10. The quick-detachable highway fog monitoring device according to claim 9, characterized in that: The rotation sensing component (30) comprises a rotating main shaft (33) and a rotating disc (34); the rotating main shaft (33) is arranged on the top plate (31); a sleeve portion (35) is provided on the rotating disc (34); the rotating disc (34) is rotatably arranged on the rotating main shaft (33) through the sleeve portion (35); and angled fan blades (36) are evenly distributed in an annular shape on the rotating disc (34).

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