Rapid detection device of pavement structure depth tester

Abstract

The invention discloses a rapid detection device of a pavement structure depth tester, and relates to the field of road engineering detection. A rapid detection device of a pavement structure depth tester comprises a sand measuring cylinder used for accurately measuring the volume of required sand grains; the funnel is used for guiding sand grains into the sand measuring cylinder; the annular wind shield is used for blocking wind power; according to the device, sand grains with specified volume can be pre-loaded, the consistency of the sand grain quantity during each detection is ensured, rotary scraping is performed through the self weight of the paving mechanism, the problem of non-uniform manual operation force is effectively avoided, and furthermore, the sand grains can be uniformly and stably filled into gaps of a road surface; the manual sanding instrument is simple in structure and convenient to use, the influence of external wind power on sand grains can be effectively blocked in the sand grain laying and rotary scraping process, the sand grains are prevented from being blown away or shifted by wind, the detection accuracy and stability are further improved, the functionality of the manual sanding instrument is enhanced, and it is ensured that reliable detection results can be obtained under different environmental conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of road engineering detection, and specifically relates to a rapid detection device for a pavement texture depth measuring instrument. Background Art

[0002] With the continuous progress of highway traffic, especially the strict requirements for driving safety on expressways and first-class highways, the anti-skid performance of the road surface has become one of the key indicators, and accurate measurement is crucial.

[0003] Currently, the main method for measuring the pavement texture depth is the manual sand spreading method. The manual sand spreading method mainly involves manually spreading a certain volume of sand grains evenly on the pavement to be measured, and using a push plate to repeatedly make a spreading movement from the inside to the outside, gently pushing the sand outwards evenly to make the sand fill the voids on the road surface, trying to spread the sand into a circle as much as possible, and not leaving floating residual sand on the surface. Then, the texture depth of the pavement is calculated by measuring the area covered by the sand grains to evaluate the anti-skid performance of the pavement.

[0004] However, during the process of spreading sand using the manual sand spreading method, there is a lack of a quantitative standard in the sand spreading process, which affects the compactness of the sand grains. During the spreading process, it is difficult to keep the force and speed of manual pushing consistent, which will cause the sand grains to be unevenly distributed on the road surface, and further result in a high data dispersion of the finally calculated pavement texture depth, making it difficult to truly and accurately reflect the actual texture depth of the pavement. In addition, the existing wind shielding measures are limited. Only a simple wind shielding plate is set, which cannot comprehensively and effectively block the wind. In actual detection, especially in an open road environment, the blowing of the external wind on the sand grains will significantly interfere with the normal distribution of the sand grains and seriously affect the accuracy of the detection results. In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a rapid detection device for a pavement texture depth measuring instrument that can overcome or at least partially solve the above problems.

[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is: a rapid detection device for a pavement texture depth measuring instrument, comprising: a sand measuring cylinder for accurately measuring the volume of the required sand grains; a funnel for guiding the sand grains into the sand measuring cylinder; an annular wind shielding plate for blocking the wind; a spreading mechanism disposed inside the annular wind shielding plate; the spreading mechanism includes a bracket, a rotating rod, a rotating handle, and an elastic scraping plate. The bracket is fixedly installed at the upper end of the annular wind shielding plate. The rotating rod is vertically rotatably connected to the bracket. The rotating handle is fixedly connected to the upper end of the rotating rod. The elastic scraping plates are fixedly connected to the bottom of the rotating rod at equal circumferential intervals. The bottom of the elastic scraping plate is on the same horizontal plane as the bottom of the annular wind shielding plate.

[0007] In order to facilitate the annular wind deflector to effectively block the wind while not increasing the overall weight of the instrument, making it easy to carry and operate. Further, the annular wind deflector is made of a lightweight and strong annular plate.

[0008] In order to facilitate providing stable support to ensure that the instrument does not shake or tip over during use. Even further, it further includes a limit base, and a through hole for cooperating with the annular wind deflector is provided on the limit base.

[0009] In order to facilitate making the entire paving process more flexible and adjustable in height and angle according to actual needs. Still further, a vertical rod is fixedly installed on the limit base, and three clamping sleeves are sleeved on the vertical rod. The clamping sleeves are fixedly installed on the vertical rod through fixing bolts and nuts. A connecting plate is fixedly connected to the side of the clamping sleeve away from the fixing bolt. The funnel is fixedly connected to the uppermost connecting plate, the annular wind deflector is fixedly connected to the lowermost connecting plate, an insertion rod is fixedly connected to the sand measuring cylinder, and a jack for cooperating with the insertion rod is provided at the end of the connecting plate located in the middle position.

[0010] In order to facilitate improving the stability of the rotating rod during rotation. Still further, a plurality of connecting rods are fixedly connected to the position between the bracket and the elastic scraper on the rotating rod at equal circumferential intervals. The end of the connecting rod is fixedly connected to a support, and a rotating wheel is rotatably connected to the support. The rotating wheel rolls on the inner wall of the annular wind deflector.

[0011] In order to facilitate automatically supplying gas to the arc-shaped gas storage shell when the elastic scraper rotates. Even further, a slot is provided at the lower end of the limit base, and an arc-shaped gas storage shell and a collection shell are respectively fixedly connected on both sides of the through hole in the slot. A plurality of air blowing ports inclined downward are equidistantly provided on the side of the arc-shaped gas storage shell close to the opening of the collection shell. When the annular wind deflector moves down to fit with the ground, it will closely adhere to the arc-shaped gas storage shell, thereby blocking the air blowing ports.

[0012] Even further, a plurality of self-resetting air bags for cooperating with the rotating wheel are fixedly connected to the inner wall of the annular wind deflector at equal circumferential intervals. An annular air cavity is provided inside the annular wind deflector. The air inlet of the annular air cavity is communicated with the air outlet of the self-resetting air bag. A air supply cavity for cooperating with the air blowing port is provided on the side of the annular wind deflector close to the arc-shaped gas storage shell. The annular air cavity is communicated with the air supply cavity through an air delivery channel.

[0013] In order to facilitate ensuring the gas storage capacity in the arc-shaped gas storage shell. Even further, a rubber sealing pad is fixedly connected to the position of the annular wind deflector close to the air blowing port of the arc-shaped gas storage shell, and a through hole for cooperating with the air blowing port and the air supply cavity is provided on the rubber sealing pad.

[0014] In order to facilitate improving the collection effect of sand grains, further, on the side of the collection shell far away from the opening and on the limit base, exhaust holes communicating with each other are equidistantly arranged, and the diameter of the exhaust holes is smaller than the diameter of the sand grains.

[0015] In order to facilitate improving the detection efficiency during parallel experiments, further, a switching valve is installed at the discharge end of the funnel.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention mainly includes a manual sand spreading instrument integrating sand grain laying, rotary scraping and wind shielding. The device is designed with a sand measuring cylinder, which can be pre-loaded with a specified volume of sand grains to ensure the consistency of the sand grain quantity during each detection. When laying sand grains, rotary scraping is carried out by the self-weight of the spreading mechanism, effectively avoiding the problem of uneven manual operation force, and thus enabling the sand grains to be evenly and stably filled into the road surface voids. In addition, the present invention is also equipped with an annular wind shielding plate, which can effectively block the influence of external wind on the sand grains during the process of laying sand grains and rotary scraping, preventing the sand grains from being blown away or displaced by the wind, thereby further improving the accuracy and stability of the detection. This design not only enhances the functionality of the manual sand spreading instrument but also ensures reliable detection results under different environmental conditions.

[0017] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Description of the Drawings

[0018] In the drawings:

[0019] Figure 1 is the structural schematic diagram of the present invention Figure 1 ;

[0020] Figure 2 is the structural schematic diagram of the present invention Figure 2 ;

[0021] Figure 3 is the structural schematic diagram of the annular wind shielding plate and the spreading mechanism in the present invention;

[0022] Figure 4 is the sectional view schematic diagram of the annular wind shielding plate and the spreading mechanism in the present invention;

[0023] Figure 5 is the structural schematic diagram of the limit base, the arc-shaped air storage shell and the collection shell in the present invention;

[0024] Figure 6 is the sectional view schematic diagram of the limit base, the arc-shaped air storage shell and the collection shell in the present invention;

[0025] Figure 7 is the structural schematic diagram when the insertion rod is taken out of the insertion hole in the present invention.

[0026] In the figure: 1. Limit base; 101. Through hole; 102. Groove; 103. Arc-shaped gas storage shell; 104. Collection shell; 105. Exhaust hole; 2. Vertical rod; 201. Ferrule; 202. Fixing bolt; 203. Nut; 204. Connecting plate; 3. Hopper; 301. Opening and closing valve; 4. Sand measuring cylinder; 401. Insert rod; 5. Annular wind baffle; 501. Bracket; 502. Rotating rod; 503. Rotating handle; 504. Elastic scraper; 505. Connecting rod; 506. Support; 507. Runner; 508. Self-resetting airbag; 509. Annular air cavity; 5010. Air supply cavity; 5011. Air transmission channel; 5012. Rubber gasket. Specific embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0028] Embodiment 1:

[0029] Referring to Figures 1 - 7 , a rapid detection device for a pavement texture depth measuring instrument, comprising: a sand measuring cylinder 4 for accurately measuring the volume of the required sand grains; a hopper 3 for guiding the sand grains into the sand measuring cylinder 4; an annular wind baffle 5 for blocking wind; a paving mechanism disposed inside the annular wind baffle 5; the paving mechanism includes a bracket 501, a rotating rod 502, a rotating handle 503, and an elastic scraper 504. The bracket 501 is fixedly installed at the upper end of the annular wind baffle 5. The rotating rod 502 is vertically rotatably connected to the bracket 501. The rotating handle 503 is fixedly connected to the upper end of the rotating rod 502. The elastic scraper 504 is fixedly connected to the bottom of the rotating rod 502 at equal circumferential intervals. The bottom of the elastic scraper 504 is at the same horizontal plane as the bottom of the annular wind baffle 5.

[0030] When it is necessary to detect the texture depth of the road surface, first select a test road surface and use tools such as a sweeping brush to clean the road surface near the test point to ensure that the cleaning area is not less than a suitable range (such as 30 cm × 30 cm) to provide a clean basis for the detection. Then select an appropriate amount of dry, sieved and clean fine sand with a particle size of 0.15 mm to 0.30 mm for standby.

[0031] After the preliminary work is ready, the quick detection device for pavement texture depth can be transported to the test point on the road surface. Then, the sand measuring cylinder 4 can be placed in a suitable position, and the lower outlet of the funnel 3 can be aligned with the inlet of the sand measuring cylinder 4. Then, the prepared fine sand can be poured into the funnel 3. At this time, the fine sand will flow into the sand measuring cylinder 4 through the funnel 3 until a pointed top is formed at the top of the sand measuring cylinder 4. At this time, the middle part of the sand measuring cylinder 4 can be gently tapped, such as 3 times, to make the sand grains compact. Then, the excess sand grains on the top can be scraped flat with a scraper to complete the accurate sand measurement.

[0032] After the sand measuring work is completed, the fine sand in the sand measuring cylinder 4 can be slowly poured onto the test point on the road surface. During this process, the influence of wind on the flow of fine sand needs to be fully considered to ensure the accuracy of the test. After pouring the sand, the annular wind shield 5 can be placed on the test point on the road surface so that the fine sand is located inside the annular wind shield 5. Then, the turning handle 503 can be rotated to drive the rotating rod 502 to rotate, and further drive the elastic scraper 504 fixedly connected to the bottom of the rotating rod 502 at equal circumferential intervals to rotate. The elastic scraper 504 makes full contact with the road surface by its own elasticity and evenly spreads the sand material from the inside to the outside, so that the sand material fills the voids on the road surface until the sand material is spread into a circle and there is no floating surplus sand.

[0033] After the paving operation is completed, at this time, a steel ruler can be used to measure the diameters of the sand spread into a circle in two perpendicular directions, and the average value is taken as the measurement result and corresponding records are made, so that the detection test of the pavement texture depth for this time can be completed.

[0034] After the detection is completed, clean the residual sand grains on the device. The components such as the annular wind shield 5 and the sand measuring cylinder 4 can be disassembled for separate cleaning. Finally, the cleaned components of the device can be properly stored for the next use.

[0035] The sand measuring cylinder 4 can accurately measure the volume of the required sand grains, ensure that the amount of sand grains is the same for each detection, and reduce the detection error caused by the difference in the amount of sand.

[0036] The annular wind shield 5 can effectively block the wind, reduce the interference of the wind on the distribution of sand grains, enable the sand grains to fill the voids on the road surface more accurately, and ensure that the detection result can truly reflect the pavement texture depth situation.

[0037] In the paving mechanism, the elastic scraper 504 makes contact with different road surfaces by its elasticity and rotates and levels by the self-weight of the mechanical structure. Compared with the traditional manual method, it is more uniform and stable, avoiding problems such as uneven force during manual paving, and improving the accuracy and stability of the detection result.

[0038] The operation process of this device is relatively standardized and convenient, and it can be quickly placed and tested on site.

[0039] The annular wind baffle 5 can carry out detection work normally in a windy environment, reducing the limitations of environmental factors on detection. At the same time, the elastic scraper 504 of the paving mechanism can adapt to different types of road surfaces. Whether it is a flat road surface or a slightly undulating road surface, it can complete the paving task well, expanding the applicable range of the device.

[0040] Embodiment 2:

[0041] Refer to Figures 1 - 7 , a rapid detection device for pavement texture depth measuring instrument, which is basically the same as Embodiment 1. Further, the annular wind baffle 5 is made of a lightweight and strong annular plate, which can effectively block the wind and does not increase the overall weight of the instrument, facilitating carrying and operation.

[0042] It further includes a limit base 1. A through hole 101 for cooperating with the annular wind baffle 5 is provided on the limit base 1. Through the setting of the limit base 1, stable support can be provided to ensure that the instrument will not shake or tip over during use.

[0043] A vertical rod 2 is fixedly installed on the limit base 1. Three clamping sleeves 201 are sleeved on the vertical rod 2. The clamping sleeves 201 are fixedly installed on the vertical rod 2 through fixing bolts 202 and nuts 203. A connecting plate 204 is fixedly connected to the side of the clamping sleeve 201 away from the fixing bolt 202. The funnel 3 is fixedly connected to the connecting plate 204 at the uppermost end. The annular wind baffle 5 is fixedly connected to the connecting plate 204 at the lowermost end. An insertion rod 401 is fixedly connected to the sand measuring cylinder 4. A jack for cooperating with the insertion rod 401 is provided at the end of the connecting plate 204 at the middle position.

[0044] The three clamping sleeves 201 sleeved on the vertical rod 2 and fixed through the fixing bolts 202 and nuts 203. This design enables the position of the clamping sleeve 201 on the vertical rod 2 to be adjusted flexibly. According to different usage requirements, such as detecting road surfaces of different thicknesses, cooperating with funnels 3, sand measuring cylinders 4 or annular wind baffles 5 of different models, the relative positions between various components can be quickly changed by loosening the fixing bolts 202, moving the clamping sleeve 201 and then tightening the bolts, making the entire paving process more flexible. The height and angle can be adjusted according to actual needs. At the same time, during the assembly and disassembly of the device, this structure is easy to operate, improving the assembly efficiency of the equipment and facilitating carrying and transportation.

[0045] Embodiment 3:

[0046] Refer to Figures 1 - 7, A rapid detection device for pavement texture depth measuring instrument, which is basically the same as Embodiment 2. Further, a plurality of connecting rods 505 are fixedly connected to the rotating rod 502 at equal circumferential intervals between the bracket 501 and the elastic scraper 504. The end of the connecting rod 505 is fixedly connected with a support 506. A runner 507 is rotatably connected to the support 506. The runner 507 rolls on the inner wall of the annular wind shield 5. A plurality of connecting rods 505 are fixedly connected to the rotating rod 502 at equal circumferential intervals, and runners 507 that are in rolling fit with the inner wall of the annular wind shield 5 are arranged at their ends, forming a plurality of support points. During the rotation of the rotating rod 502, these uniformly distributed runners 507 are in contact with the inner wall of the annular wind shield 5 at the same time, which can effectively disperse the force received by the rotating rod 502 and avoid shaking or deviation caused by uneven force. For example, when the elastic scraper 504 is spreading sand grains and is subjected to local road surface resistance, the multi-point support structure can keep the rotating rod 502 rotating stably, prevent jamming or tilting, and ensure the uniformity of sand grain spreading.

[0047] Embodiment 4:

[0048] Refer to Figures 1 - 7 , A rapid detection device for pavement texture depth measuring instrument, which is basically the same as Embodiment 3. Further, a slot 102 is opened at the lower end of the limit base 1. On both sides of the through hole 101 in the slot 102, an arc-shaped air storage shell 103 and a collection shell 104 are respectively fixedly connected. A plurality of air blowing ports inclined downward are equidistantly arranged on one side of the arc-shaped air storage shell 103 close to the opening of the collection shell 104. When the annular wind shield 5 moves down to fit with the ground, it will be closely attached to the arc-shaped air storage shell 103, thereby blocking the air blowing ports.

[0049] A plurality of self-resetting air bags 508 that cooperate with the runners 507 are fixedly connected to the inner wall of the annular wind shield 5 at equal circumferential intervals. An annular air chamber 509 is opened inside the annular wind shield 5. The air inlet of the annular air chamber 509 is connected to the air outlet of the self-resetting air bag 508. An air supply chamber 5010 that cooperates with the air blowing ports is opened on one side of the annular wind shield 5 close to the arc-shaped air storage shell 103. The annular air chamber 509 is connected to the air supply chamber 5010 through an air delivery channel 5011.

[0050] The arc-shaped air storage shell 103 and the collection shell 104 arranged in the slot 102 at the lower end of the limit base 1, as well as the related air blowing port design, are closely matched with the annular wind shield 5 to form an automatic air blowing and cleaning system. When the annular wind shield 5 moves down to fit with the ground, the air blowing ports are blocked.

[0051] The self - resetting airbag 508 on the inner wall of the annular wind deflector 5 is used in conjunction with the runner 507. It not only plays a certain buffering and auxiliary positioning role when the rotating rod 502 rotates, but also has a positive effect on sand cleaning. When the rotating rod 502 drives the elastic scraper 504 for paving operation, during the rolling process of the runner 507, it may squeeze the self - resetting airbag 508. After being squeezed, the gas inside the self - resetting airbag 508 enters the annular air chamber 509 through the air outlet, then enters the air supply chamber 5010 through the air supply channel 5011, and finally enters the arc - shaped air storage shell 103 through the air blowing port for storage. Subsequently, as the self - resetting airbag 508 is continuously squeezed and self - reset, more gas can be transported into the arc - shaped air storage shell 103.

[0052] When the paving of sand is completed and the annular wind deflector 5 is moved upward and removed, the blockage of the air blowing port can be released at this time. Then the gas stored in the arc - shaped air storage shell 103 can be blown out from the inclined downward - arranged air blowing port. These airflows can blow the sand grains remaining on the road surface after the detection into the collection shell 104, realizing the automatic cleaning and collection of sand grains, and can avoid the sand grains being blown everywhere due to the influence of external wind. There is no need for manual cleaning one by one, greatly improving the cleaning efficiency and reducing the cleaning time and workload.

[0053] Embodiment 5:

[0054] Refer to Figures 1 - 7 A rapid detection device for a pavement texture depth measuring instrument is basically the same as that in Embodiment 4. Further, a rubber sealing pad 5012 is fixedly connected to the position of the annular wind deflector 5 close to the air blowing port of the arc - shaped air storage shell 103. A through - hole for the cooperation of the air blowing port and the air supply chamber 5010 is provided on the rubber sealing pad 5012. Through the setting of the rubber sealing pad 5012, a further sealing effect can be achieved for the air blowing port of the arc - shaped air storage shell 103, avoiding the leakage of the gas stored in the arc - shaped air storage shell 103 and effectively ensuring the gas storage capacity in the arc - shaped air storage shell 103.

[0055] On the side of the collection shell 104 far from the opening, exhaust holes 105 are equidistantly arranged and interconnected with the limiting base 1. The diameter of the exhaust holes 105 is smaller than the diameter of the sand grains. Through the setting of the exhaust holes 105, the gas blown into the collection shell 104 through the air blowing port can be quickly discharged through the exhaust holes 105, avoiding the situation that after the gas enters the collection shell 104 through the opening of the collection shell 104 and then is discharged through the opening, carrying some sand grains away from the collection shell 104, effectively ensuring the effect of collecting sand grains.

[0056] An opening and closing valve 301 is installed at the discharge end of the funnel 3. By setting the opening and closing valve 301 at the discharge end of the funnel 3, if parallel tests are needed, the valve 301 can be closed, and sand can be prepared in the funnel 3 in advance, so as to quickly transport sand grains into the sand measuring cylinder 4 during use and improve the detection efficiency.

[0057] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention.

Claims

1. A rapid detection device for a road surface structure depth measuring instrument, characterized in that: include: A sand measuring cylinder (4) is used to accurately measure the volume of required sand particles; A funnel (3) for introducing sand into the sand measuring cylinder (4); An annular windshield (5) for blocking wind force; A paving mechanism is arranged inside the annular wind shield (5); The paving mechanism comprises a bracket (501), a rotating rod (502), a turning handle (503) and an elastic scraper (504); the bracket (501) is fixedly mounted on the upper end of the annular wind shield (5); the rotating rod (502) is vertically rotatably connected to the bracket (501); the turning handle (503) is fixedly connected to the upper end of the rotating rod (502); the elastic scraper (504) is fixedly connected to the bottom of the rotating rod (502) at equidistant intervals around the circumference; and the bottom of the elastic scraper (504) is on the same horizontal plane as the bottom of the annular wind shield (5).

2. A rapid detection device for a road surface structure depth measuring instrument according to claim 1, characterized in that: The annular windshield plate (5) is made of a light and strong annular plate.

3. A rapid detection device for a road surface structure depth measuring instrument according to claim 2, characterized in that: It also comprises a position limiting base (1), wherein the position limiting base (1) is provided with a through opening (101) for use in conjunction with the annular wind shield plate (5).

4. A rapid detection device for a road surface structure depth measuring instrument according to claim 3, characterized in that: A vertical pole (2) is fixedly mounted on the limiting base (1), three ferrules (201) are sleeved on the vertical pole (2), the ferrules (201) are fixedly mounted on the vertical pole (2) via fixing bolts (202) and nuts (203), a connecting plate (204) is fixedly connected to the side of the ferrule (201) away from the fixing bolts (202), the funnel (3) is fixedly connected to the connecting plate (204) at the uppermost end, the annular wind shield plate (5) is fixedly connected to the connecting plate (204) at the lowermost end, an insertion rod (401) is fixedly connected to the sand measuring cylinder (4), and a plug hole for use with the insertion rod (401) is provided at the end of the connecting plate (204) at the middle position.

5. A rapid detection device for a road surface structure depth measuring instrument according to claim 3, characterized in that: A plurality of connecting rods (505) are fixedly connected to the rotating rod (502) at positions between the bracket (501) and the elastic scraper (504) at equal intervals in a circle, and a support (506) is fixedly connected to the end of the connecting rod (505), and a rotating wheel (507) is rotatably connected to the support (506), and the rotating wheel (507) rolls on the inner wall of the annular wind shield (5).

6. A rapid detection device for a road surface structure depth measuring instrument according to claim 5, characterized in that: A slot (102) is provided at the lower end of the limiting base (1), and an arc-shaped gas storage shell (103) and a collection shell (104) are fixedly connected to the two sides of the through opening (101) in the slot (102), and a plurality of air blowing ports arranged obliquely downward are equidistantly provided on one side of the arc-shaped gas storage shell (103) close to the opening of the collection shell (104). When the annular wind shield plate (5) moves downward and fits the ground, it will fit closely to the arc-shaped gas storage shell (103), thereby blocking the air blowing ports.

7. A rapid detection device for a road surface structure depth measuring instrument according to claim 6, characterized in that: A plurality of self-resetting air bags (508) used in conjunction with the rotating wheel (507) are fixedly connected to the inner wall of the annular wind shield (5) at equal intervals in a circumference, and an annular air cavity (509) is provided inside the annular wind shield (5), and an air inlet of the annular air cavity (509) is communicated with an air outlet of the self-resetting air bag (508), and an air supply cavity (5010) used in conjunction with the air outlet is provided on one side of the annular wind shield (5) close to the arc-shaped air storage shell (103), and the annular air cavity (509) and the air supply cavity (5010) are communicated with each other through an air transmission channel (5011).

8. A rapid detection device for a road surface structure depth measuring instrument according to claim 7, characterized in that: A rubber sealing pad (5012) is fixedly connected to the annular wind shield (5) at a position close to the air blowing port of the arc-shaped air storage shell (103), and a through hole for use with the air blowing port and the air supply cavity (5010) is opened on the rubber sealing pad (5012).

9. A rapid detection device for measuring the depth of a road surface structure according to claim 6, characterized in that: Exhaust holes (105) that are interconnected are equidistantly formed on the side of the collection shell (104) away from the opening and on the limiting base (1), and the diameter of the exhaust hole (105) is smaller than the diameter of the sand particles.

10. A rapid detection device for measuring the depth of a road surface structure according to claim 1, characterized in that: An opening and closing valve (301) is installed at the discharge end of the funnel (3).

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