Road construction quality detection method

Abstract

The invention discloses a road construction quality detection method, and relates to the field of road engineering, and the method comprises the following steps: step 1, sample placement: a plurality of points are randomly extracted from different positions of a road surface in a road construction process for sampling, and the extracted samples are located in a placement groove formed in a placement plate above a workbench; the method comprises the following steps: step 1, sampling a road in a construction process, step 2, closing a detection area, starting a driving motor in a lifting assembly, driving a screw rod and a first bevel gear to rotate by a rotating shaft, step 3, performing penetration test, and then starting a liquid level sensor in a water storage tank to detect the height of water, a water pump and a timer. According to the method, the quality of a sample is detected, traffic interference caused during detection after construction is completed is avoided, the quality condition of a construction site is monitored in real time, problems can be found in time, measures can be taken, meanwhile, after detection is completed, injected water can be recycled, and waste of water resources is reduced.

Description

Technical Field

[0001] The invention mainly relates to the technical field of road engineering, and specifically to a road construction quality detection method. Background Art

[0002] Road construction refers to a series of work involved in the process of building new roads or renovating and repairing existing roads. After the construction is completed, a series of quality inspections are required. Among them, permeability inspection mainly judges the permeability of materials by detecting the changes in the quality of samples after being affected by water at different time intervals. It can understand the anti-permeability performance of road materials, thereby providing an important reference for road maintenance and protection design.

[0003] The road construction quality detection device described in the prior art includes a base, a sealing ring is provided on the lower end surface of the base, a liquid storage cylinder is fixed at the upper end of the base, a conical cylinder is provided inside the base, a liquid seepage hole is opened on the bottom wall of the conical cylinder, and the upper end of the conical cylinder is connected with the liquid storage cylinder through a liquid outlet pipe; the liquid storage cylinder is provided with a support plate extending upward along the side wall of the liquid storage cylinder, and an identification component that can move up and down along the support plate is installed on the support plate, a buoyancy airbag is provided in the liquid storage cylinder, and the buoyancy airbag is fixedly connected to the identification component via a connecting rod, a first spring is connected between the lower part of the buoyancy airbag and the bottom wall of the liquid storage cylinder, and scales distributed up and down are provided on the support plate.

[0004] Although the above technology can reduce the amount of operation and improve the accuracy of detection, when testing the road, the device needs to be moved to the road that has been completed, which may cause certain interference to traffic. At the same time, after the test is completed, the injected water is not easy to recycle, resulting in a waste of water resources. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a road construction quality detection method to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A road construction quality detection method comprises the following steps: Step 1: Sample placement: During the road construction process, multiple points are randomly selected from different locations on the road surface for sampling, and the taken samples are placed in the placement grooves opened on the placement plate above the workbench; Step 2: The detection area is closed by starting the driving motor in the lifting assembly, and the rotating shaft drives the lead screw and the first bevel gear to rotate. The closed box moves downward through the sleeve block following the rotation of the lead screw under the restriction of the fixed block and the telescopic rod. At this time, the elastic silicone pad and the sealing gasket at the bottom of the closed box are in close contact with the upper surface of the sample. At the same time, the first bevel gear drives the second bevel gear in the rotating assembly to rotate. Under the action of the magnetic coupler and the chain drive, the placement plate rotates between the two support plates. The deflected placement plate will cause the placed sample to follow the deflection. At this time, under the action of the elastic silicone pad and the sealing gasket, the closed box is still in close contact with the upper surface of the sample; Step three, penetration test, then start the liquid level sensor in the water tank to detect the water height, water pump and timer, so that water passes through the first hose and the water pipe into the precipitation board, and is sprayed out from several sprinkler heads. The falling water flows under the inclination of the sample to simulate the rainfall scene. The flowing water returns to the water tank through the water inlet and the second hose. When the water that penetrates the sample drips through the through hole, the pyroelectric sensor will detect the water droplets, then the timer stops ringing and the water pump stops. Finally, the liquid level sensor works to detect the water height again to realize the permeability detection of the road.

[0007] The technical solution is specific, the upper surface of the workbench is symmetrically fixed with support plates, a placement plate is provided between the two support plates, the upper surface of the placement plate is provided with a placement groove, the center of the bottom of the placement groove is provided with a square through hole, shaft rods are fixed at the centers of the outer walls of both sides of the placement plate, the two shaft rods are rotatably connected to the support plates, a driving cavity is provided in one of the support plates, a protective shell is fixed to the lower surface of the workbench, a rotating assembly is provided in the protective shell, the actuator of the rotating assembly is located in the driving cavity and is connected to a shaft rod, a matching lifting assembly is provided on one side of the rotating assembly in the protective shell, the actuator of the lifting assembly passes through the other support plate and extends to the outside of the top, a closed box is provided above the placement plate, and sleeve blocks and fixed blocks are respectively welded to the outer walls of both sides of the closed box, and the sleeve blocks are connected to the actuator of the lifting assembly; A water tank is fixed to the lower surface of the workbench on one side of the protective shell, a liquid level sensor and a water pump are arranged inside the water tank, a dewatering plate is arranged inside the closed box, a water pipe is connected to the upper surface of the dewatering plate, and the water pipe is connected to the water pump through a first hose, an elastic silicone pad is bonded to the bottom of the closed box, a water inlet is arranged at the bottom of one side of the elastic silicone pad, and the water inlet is connected to the water tank through a second hose.

[0008] Specifically, a pyroelectric sensor is embedded in the through hole on the upper surface of the workbench, and a first limiting block and a second limiting block are respectively provided on both sides of the placement plate on the upper surface of the workbench, and the height and width of the first limiting block are greater than those of the second limiting block.

[0009] Specifically, the lifting assembly includes a driving motor, which is arranged in a protective shell. A rotating shaft is fixed to the output end of the driving motor. The top end of the rotating shaft passes through a workbench and a support plate in sequence, and the top end of the rotating shaft is fixed by a screw rod. A telescopic rod is embedded in the center of the upper surface of the other support plate. The sleeve block is sleeved on the screw rod, and the telescopic end of the telescopic rod is fixedly connected to the lower surface of the fixed block.

[0010] Specifically, the driving motor is fixedly connected to the inner bottom wall of the protective shell by bolts, and a first bevel gear is fixedly sleeved on the output end of the driving motor, and the first bevel gear is connected to the driving member of the rotating assembly.

[0011] The technical solution is specific, and the rotating component includes a second bevel gear, which is meshed and connected with the first bevel gear. A connecting shaft is fixedly inserted into the center of the second bevel gear. A protective shell is fixed on one side of the second bevel gear inside the protective shell. A magnetic coupling is provided in the protective shell. The end of the connecting shaft passes through the protective shell and is fixedly connected to the magnetic coupling. A driving sprocket is provided on one side of the protective shell inside the protective shell. A transmission shaft is fixedly inserted into the center of the driving sprocket. The end of the transmission shaft passes through the protective shell and is fixedly connected to the magnetic coupling. The other end of the transmission shaft is rotatably connected to the inner wall of the protective shell.

[0012] Specifically, the shaft rod of the present invention passes through the driving cavity and is rotatably connected to the cavity wall. A driven sprocket is provided in the driving cavity. The driven sprocket is fixed on the shaft rod. The driven sprocket and the driving sprocket are connected via a transmission chain. The transmission chain passes through the support plate and the workbench.

[0013] Specifically, the water pump is installed at the bottom of the water tank by bolts, a mounting shell is fixed to one side of the inner top of the water tank, the liquid level sensor is fixed inside the mounting shell, and the detection end of the liquid level sensor passes through the mounting shell and extends to the inside of the water tank.

[0014] Specifically, the outer walls of the precipitation plate are fixedly connected to the interior of the closed box, a plurality of spray heads are provided on the lower surface of the precipitation plate, the plurality of spray heads are made of silicone, and a sealing gasket is bonded to the lower surface of the elastic silicone pad.

[0015] Specifically, a timer is fixed to a corner of the upper surface of the workbench close to the human body, supporting legs are fixed to four corners of the lower surface of the workbench, and the height of the water tank is the same as the height of the supporting legs.

[0016] In summary, the present invention mainly has the following beneficial effects: the present application takes samples from the road during the construction process and performs quality inspection on the samples, thereby avoiding traffic interference when the inspection is performed after the construction is completed, and real-time monitoring of the quality status of the construction site is conducive to timely discovery of problems and taking measures. At the same time, after the inspection is completed, the injected water can be recycled and reused to reduce the waste of water resources; First, multiple points are randomly selected at different positions of the construction road for sampling, and the taken samples are placed in the placement groove of the placement plate. Then, the driving motor in the lifting assembly is started, and its output end drives the screw to rotate through the rotating shaft, and the output end also drives the first bevel gear to rotate. At this time, the closed box moves downward through the sleeve block following the rotation of the screw under the restriction of the fixed block and the telescopic rod. At the same time, when the first bevel gear rotates, it will drive the second bevel gear in the meshing rotating assembly to rotate, and the second bevel gear drives the connecting shaft to rotate. The connecting shaft rotates the transmission shaft through the magnetic coupling, and the transmission shaft drives the active sprocket to rotate. The driven sprocket drives the shaft rod to rotate through the transmission chain, thereby realizing the angular deflection of the placement plate. At this time, the elastic silicone pad at the bottom of the closed box contacts the upper surface of the sample, and during the deflection process and the downward movement of the closed box, the elastic silicone pad is squeezed to complete the sealing until the bottom of one side of the placement plate contacts the upper surface of the second limiting block. Then the liquid level sensor works to detect the water level in the water tank, and then the water pump starts to inject water into the precipitation board through the first hose and the water pipe, and sprays it out from the sprinkler head. The falling water flows under the inclination of the sample to simulate the rainfall scene. The flowing water returns to the water tank through the water inlet and the second hose. When the water that penetrates the sample drips through the through hole, the pyroelectric sensor detects the water droplets, and then the timer stops to sound the bell and the water pump also stops. Finally, the liquid level sensor works to detect the water height again to realize the permeability detection of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a diagram of the method steps of the present invention; Figure 2 It is a schematic diagram of the device of the present invention; Figure 3 It is a front cross-sectional structural diagram of the present invention; Figure 4 A top cross-sectional view of a support plate of the present invention; Figure 5 is a side sectional view of the protective shell of the present invention; Figure 6It is a side sectional view of the support plate of the present invention.

[0018] Description of the drawings: 1. Workbench; 101. Support leg; 102. Water storage tank; 1021. Mounting shell; 1022. Liquid level sensor; 103. Pyroelectric sensor; 104. Protective shell; 105. Timer; 2. Support plate; 201. Placement plate; 2011. Placement groove; 2012. Through hole; 2013. Shaft; 202. Drive chamber; 3. Enclosure box; 301. Set block; 302. Rainfall plate; 3021. Sprinkler head; 303. Water pipe; 304. First hose; 305. Fixing block; 306. Elastic silicone pad; 3061, water inlet; 3062, second hose; 307, sealing gasket; 4, lifting assembly; 401, driving motor; 402, rotating shaft; 403, screw; 404, first bevel gear; 405, telescopic rod; 5, rotating assembly; 501, driven sprocket; 502, transmission chain; 503, driving sprocket; 504, transmission shaft; 505, protective shell; 506, magnetic coupler; 507, connecting shaft; 508, second bevel gear; 6, water pump; 7, first limiting block; 8, second limiting block. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure. Example

[0021] See also Figure 1-6 As shown, a road construction quality detection method comprises the following steps: Step 1: Sample placement: During the road construction process, multiple points are randomly selected from different locations on the road surface for sampling, and the taken samples are placed in the placement groove 2011 opened on the placement plate 201 above the workbench 1; Step 2, the detection area is closed. By starting the driving motor 401 in the lifting assembly 4, the rotating shaft 402 drives the screw rod 403 and the first bevel gear 404 to rotate. The closed box 3 moves downward through the sleeve block 301 following the rotation of the screw rod 403 under the restriction of the fixed block 305 and the telescopic rod 405. At this time, the elastic silicone pad 306 and the sealing gasket 307 at the bottom of the closed box 3 are in close contact with the upper surface of the sample. At the same time, the first bevel gear 404 drives the second bevel gear 508 in the rotating assembly 5 to rotate. Under the action of the magnetic coupler 506 and the chain drive, the placement plate 201 rotates between the two support plates 2. The deflected placement plate 201 will cause the placed sample to follow the deflection. At this time, under the action of the elastic silicone pad 306 and the sealing gasket 307, the closed box 3 is still in close contact with the upper surface of the sample; Step three, penetration test, then start the liquid level sensor 1022 in the water tank 102 to detect the water height, the water pump 6 and the timer 105, so that the water passes through the first hose 304 and the water pipe 303 into the precipitation plate 302, and is sprayed out from several sprinkler heads 3021. The falling water flows under the inclination of the sample to simulate a rainfall scene. The flowing water returns to the water tank 102 through the water inlet 3061 and the second hose 3062. When the water that penetrates the sample drips through the through hole 2012, the pyroelectric sensor 103 will detect the water droplets, and then the timer 105 stops ringing and the water pump 6 also stops. Finally, the liquid level sensor 1022 works to detect the water height again to achieve road permeability detection.

[0022] All electrical components in the present application are controlled by a controller (not shown in the figure), and a display panel is provided on the controller for displaying the value detected by the liquid level sensor 1022, wherein the liquid level sensor 1022 is capacitive and the pyroelectric sensor 103 is flat.

[0023] See also Figure 2-4As shown, a timer 105 is fixed to a corner of the upper surface of the workbench 1 close to the human body, and support legs 101 are fixed to the four corners of the lower surface of the workbench 1. Support plates 2 are symmetrically fixed to the upper surface of the workbench 1. A placement plate 201 is provided between the two support plates 2. A placement groove 2011 is provided on the upper surface of the placement plate 201. A square through hole 2012 is provided at the center of the bottom of the placement groove 2011. Shaft rods 2013 are fixed to the center of the outer walls of both sides of the placement plate 201. The two shaft rods 2013 are rotatably connected to the support plates 2. One support plate 2 is provided with a The driving cavity 202, a protective shell 104 is fixed on the lower surface of the workbench 1, a rotating assembly 5 is arranged in the protective shell 104, an actuator of the rotating assembly 5 is located in the driving cavity 202 and connected to a shaft 2013, a matching lifting assembly 4 is arranged on one side of the rotating assembly 5 in the protective shell 104, an actuator of the lifting assembly 4 passes through another supporting plate 2 and extends to the outside of the top, a closed box 3 is arranged above the placement plate 201, a sleeve block 301 and a fixed block 305 are respectively welded to the outer walls of both sides of the closed box 3, and the sleeve block 301 is connected to the actuator of the lifting assembly 4; A water tank 102 is fixed on the lower surface of the workbench 1 on one side of the protective shell 104. The height of the water tank 102 is the same as the height of the supporting leg 101. A liquid level sensor 1022 and a water pump 6 are arranged inside the water tank 102. The water pump 6 is installed at the bottom of the water tank 102 by bolts. A mounting shell 1021 is fixed on one side of the inner top of the water tank 102. The liquid level sensor 1022 is fixed inside the mounting shell 1021. The detection end of the liquid level sensor 1022 passes through the mounting shell 1021 and extends to the inside of the water tank 102. A dewatering plate 302 is arranged inside the closed box 3. A water pipe 303 is connected to the upper surface of the dewatering plate 302. The water pipe 303 is connected to the water pump 6 through a first hose 304. The outer walls of 02 are fixedly connected to the interior of the closed box 3, and a plurality of spray heads 3021 are provided on the lower surface of the precipitation plate 302, and the plurality of spray heads 3021 are made of silicone. An elastic silicone pad 306 is bonded to the bottom of the closed box 3, and a sealing gasket 307 is bonded to the lower surface of the elastic silicone pad 306. A water inlet 3061 is provided at the bottom of one side of the elastic silicone pad 306, and the water inlet 3061 is connected to the water storage tank 102 through a second hose 3062. A pyroelectric sensor 103 is embedded in the through hole 2012 on the upper surface of the workbench 1, and a first limiting block 7 and a second limiting block 8 are respectively provided on both sides of the placing plate 201 on the upper surface of the workbench 1, and the height and width of the first limiting block 7 are greater than those of the second limiting block 8.

[0024] When inspecting the construction quality of the road, the staff uses a sampling tool to randomly select multiple points at different positions of the construction road for sampling, and puts the taken samples into the placement groove 2011 of the placement plate 201, and then starts the driving source of the lifting component 4 through the controller, and drives the driving member of the rotating component 5 to rotate through the meshing between the bevel gears, thereby realizing the angular deflection of the placement plate 201 while the closed box 3 moves downward, wherein when the placement plate 201 is in a horizontal state, the bottom of one side of the placement plate 201 contacts the upper surface of the first limiting block 7, and when the angular deflection is performed, the bottom of the other side contacts the upper surface of the second limiting block 8, and the state of the placement plate 201 can be limited by the first limiting block 7 and the second limiting block 8, and the elastic silicone pad 306 at the bottom of the closed box 3 contacts the upper surface of the sample, and during the deflection process and the downward movement of the closed box 3, the elastic silicone pad 306 is squeezed and matched with the sealing gasket 307 to complete the sealing; Then, the controller starts the liquid level sensor 1022 to detect the water level in the water tank 102. The detected data is sent to the controller through the wire and displayed on the display panel. Then, the water pump 6 and the timer 105 are started. The water pump 6 delivers the water in the water tank 102 into the precipitation board 302 through the first hose 304 and the water pipe 303, and sprays it out from a plurality of spray heads 3021. The spray heads 3021 made of silicone are convenient for staff to dredge and avoid blockage caused by scale when used for a long time. The sprayed water falls on the road sample and flows under the action of inclination, simulating the scene of rain falling on the road. The flowing water enters the second hose 3062 through the water inlet 3061 and returns to the water tank 102. When the falling water penetrates the road sample, the penetrated water falls from the through hole 2012 onto the pyroelectric sensor 103, causing the resistance of the sensor to change, changing the voltage output of the sensor, and achieving the purpose of detecting water drops. At this time, a signal is sent to the controller, and the controller stops the water pump 6 and the timer 105. The buzzer set inside the timer 105 works to send a ring tone, and then the liquid level sensor 1022 detects the water level in the water tank 102 again. The permeability detection of the road is achieved through the water level height and time measured twice; Therefore, this application takes samples from the roads during the construction process and conducts quality inspections on the samples to avoid traffic disruptions when conducting inspections after the construction is completed, and monitors the quality status of the construction site in real time, which is conducive to timely detection of problems and taking measures. At the same time, after the inspection is completed, the injected water can be recycled and reused to reduce water resource waste.

[0025] See also Figure 3-6As shown, the lifting assembly 4 includes a driving motor 401, which is arranged in the protective shell 104, and a rotating shaft 402 is fixed to the output end of the driving motor 401. The top of the rotating shaft 402 passes through the workbench 1 and a support plate 2 in sequence, and the top of the rotating shaft 402 is fixed by a screw 403, and a telescopic rod 405 is embedded in the center of the upper surface of the other support plate 2. The sleeve block 301 is sleeved on the screw 403, and the telescopic end of the telescopic rod 405 is fixedly connected to the lower surface of the fixed block 305. The driving motor 401 is fixedly connected to the inner bottom wall of the protective shell 104 by bolts, and a first bevel gear 404 is fixedly sleeved on the output end of the driving motor 401, and the first bevel gear 404 is connected to the driving member of the rotating assembly 5; The rotating assembly 5 includes a second bevel gear 508, which is meshed and connected with the first bevel gear 404. A connecting shaft 507 is fixedly provided at the center of the second bevel gear 508. A protective shell 505 is fixed on one side of the second bevel gear 508 inside the protective shell 104. A magnetic coupler 506 is provided in the protective shell 505. The end of the connecting shaft 507 passes through the protective shell 505 and is fixedly connected with the magnetic coupler 506. A driving sprocket 503 is provided on one side of the protective shell 505 inside the protective shell 104. The center of the driving sprocket 503 A transmission shaft 504 is fixedly penetrated at the center, and the end of the transmission shaft 504 passes through the protective shell 505 and is fixedly connected to the magnetic coupler 506. The other end of the transmission shaft 504 is rotatably connected to the inner wall of the protective shell 104. An axle rod 2013 passes through the drive cavity 202 and is rotatably connected to the cavity wall. A driven sprocket 501 is provided in the drive cavity 202. The driven sprocket 501 is fixed on the axle rod 2013. The driven sprocket 501 and the driving sprocket 503 are connected through a transmission chain 502. The transmission chain 502 passes through the support plate 2 and the workbench 1.

[0026] The driving motor 401 in the lifting assembly 4 works, and the output end of the driving motor 401 drives the connected rotating shaft 402 to rotate, and the rotating shaft 402 drives the top screw rod 403 to rotate, so that the closed box 3 moves downward by following the rotation of the screw rod 403 under the restriction of the fixed block 305 and the telescopic rod 405 through the sleeve block 301. During the downward movement of the closed box 3, the fixed block 305 is driven to retract the telescopic end of the telescopic rod 405, and the output end of the driving motor 401 also drives the first bevel gear 404 to rotate when rotating. The rotation of the first bevel gear 404 drives the second bevel gear 508 in the rotating assembly 5 to rotate, and the second bevel gear 508 drives the threaded rod 403 to rotate. The connecting shaft 507 is designed to rotate, and the connecting shaft 507 transmits the rotational force to the transmission shaft 504 through the magnetic coupler 506. The transmission shaft 504 drives the active sprocket 503 to rotate, and the active sprocket 503 drives the driven sprocket 501 to rotate through the transmission chain 502. The driven sprocket 501 drives the inserted shaft rod 2013 to rotate, and the angle deflection of the placement plate 201 is achieved by the rotating shaft rod 2013. The magnetic coupler 506 can not hinder the downward movement of the closed box 3 after the angle of the placement plate 201 is deflected into place. At this time, the bottom of the closed box 3 is in close contact with the inclined upper surface of the sample under the action of the elastic silicone pad 306 and the sealing gasket 307.

[0027] The working principle of the present invention is: When inspecting the construction quality of the road, the staff uses a sampling tool to randomly select multiple points at different locations of the construction road for sampling, and puts the taken samples into the placement groove 2011 of the placement plate 201, and then starts the driving motor 401 of the lifting assembly 4 through the controller, and the output end of the driving motor 401 drives the connected rotating shaft 402 to rotate, and the rotating shaft 402 drives the top screw rod 403 to rotate, so that the closed box 3 is restricted by the fixed block 305 and the telescopic rod 405, and the sleeve block 301 moves downward following the rotation of the screw rod 403. During the downward movement of the closed box 3, the fixed block 305 is driven to retract the telescopic end of the telescopic rod 405, and the output end of the driving motor 401 rotates. The first bevel gear 404 is also driven to rotate, and the second bevel gear 508 in the rotating assembly 5 is driven to rotate by the rotation of the first bevel gear 404. The second bevel gear 508 drives the inserted connecting shaft 507 to rotate. The connecting shaft 507 transmits the rotational force to the transmission shaft 504 through the magnetic coupling 506. The transmission shaft 504 drives the driving sprocket 503 to rotate. The driving sprocket 503 drives the driven sprocket 501 to rotate through the transmission chain 502. The driven sprocket 501 drives the inserted shaft rod 2013 to rotate. The angle of the placement plate 201 is deflected by the rotating shaft rod 2013. At this time, the bottom of the closed box 3 is in close contact with the inclined upper surface of the sample under the action of the elastic silicone pad 306 and the sealing gasket 307. Then, the controller starts the liquid level sensor 1022 to detect the water level in the water tank 102. The detected data is sent to the controller through the wire and displayed on the display panel. Then, the water pump 6 and the timer 105 are started. The water pump 6 delivers the water in the water tank 102 into the precipitation board 302 through the first hose 304 and the water pipe 303, and sprays it out from a plurality of spray heads 3021. The spray heads 3021 made of silicone are convenient for staff to dredge and avoid blockage caused by scale when used for a long time. The sprayed water falls on the road sample and flows under the action of inclination, simulating the scene of rain falling on the road. The flowing water enters the second hose 3062 through the water inlet 3061 and returns to the water tank 102. When the falling water penetrates the road sample, the penetrated water falls from the through hole 2012 onto the pyroelectric sensor 103, causing the resistance of the sensor to change, changing the voltage output of the sensor, thereby achieving the purpose of detecting water drops. At this time, a signal is sent to the controller, which stops the water pump 6 and the timer 105. The buzzer set inside the timer 105 works to send a ring tone, and then the liquid level sensor 1022 detects the water level in the water tank 102 again. The permeability of the road is detected by measuring the water level height and time twice.

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A road construction quality detection method, Features , including the following steps: Step 1: Sample placement: during the road construction process, a plurality of points are randomly selected from different positions on the road surface for sampling, and the taken samples are placed in a placement groove (2011) provided on a placement plate (201) above the workbench (1); Step 2: The detection area is sealed by starting the driving motor (401) in the lifting assembly (4). The rotating shaft (402) drives the screw (403) and the first bevel gear (404) to rotate. The sealing box (3) is restricted by the fixed block (305) and the telescopic rod (405) and moves downward through the sleeve block (301) following the rotation of the screw (403). At this time, the elastic silicone pad (306) and the sealing gasket (307) at the bottom of the sealing box (3) are in close contact with the upper surface of the sample. At the same time, the first bevel gear (404) drives the second bevel gear (508) in the rotating assembly (5) to rotate. Under the action of the magnetic coupler (506) and the chain drive, the placement plate (201) rotates between the two support plates (2). The deflected placement plate (201) causes the placed sample to follow the deflection. At this time, under the action of the elastic silicone pad (306) and the sealing gasket (307), the sealing box (3) is still in close contact with the upper surface of the sample. Step 3, penetration test, then start the liquid level sensor (1022) in the water tank (102) to detect the water height, the water pump (6) and the timer (105), so that water passes through the first hose (304) through the water pipe (303) into the precipitation board (302), and is sprayed out from a plurality of sprinkler heads (3021). The falling water flows under the inclination of the sample, simulating a rainfall scene. The flowing water returns to the inside of the water tank (102) through the water inlet (3061) and the second hose (3062). When the water that penetrates the sample drips through the through hole (2012), the pyroelectric sensor (103) detects the water droplets, then the timer (105) stops ringing and the water pump (6) also stops. Finally, the liquid level sensor (1022) works to detect the water height again, thereby realizing the permeability test of the road.

2. A road construction quality detection method according to claim 1, It is characterized in that Support plates (2) are symmetrically fixed on the upper surface of the workbench (1); a placement plate (201) is provided between the two support plates (2); a placement groove (2011) is provided on the upper surface of the placement plate (201); a square through hole (2012) is provided at the center of the bottom of the placement groove (2011); shaft rods (2013) are fixed at the center of the outer walls on both sides of the placement plate (201); the two shaft rods (2013) are rotatably connected to the support plates (2); a driving cavity (202) is provided in one of the support plates (2); a protective shell (104) is fixed to the lower surface of the workbench (1); A rotating assembly (5) is provided in the protective shell (104), an actuator of the rotating assembly (5) is located in the driving cavity (202) and connected to a shaft (2013), a matching lifting assembly (4) is provided in the protective shell (104) on one side of the rotating assembly (5), the actuator of the lifting assembly (4) penetrates another supporting plate (2) and extends to the outside of the top, a closed box (3) is provided above the placement plate (201), a sleeve block (301) and a fixed block (305) are respectively welded to the outer walls of both sides of the closed box (3), and the sleeve block (301) is connected to the actuator of the lifting assembly (4); A water tank (102) is fixed to the lower surface of the workbench (1) at one side of the protective shell (104); a liquid level sensor (1022) and a water pump (6) are provided inside the water tank (102); a water drop plate (302) is provided inside the closed box (3); a water pipe (303) is connected to the upper surface of the water drop plate (302); the water pipe (303) is connected to the water pump (6) via a first hose (304); an elastic silicone pad (306) is bonded to the bottom of the closed box (3); a water inlet (3061) is provided at the bottom of one side of the elastic silicone pad (306); the water inlet (3061) is connected to the water tank (102) via a second hose (3062).

3. A road construction quality detection method according to claim 2, It is characterized in that A pyroelectric sensor (103) is embedded in the through hole (2012) on the upper surface of the workbench (1), and a first limiting block (7) and a second limiting block (8) are respectively provided on both sides of the placement plate (201) on the upper surface of the workbench (1), wherein the height and width of the first limiting block (7) are greater than those of the second limiting block (8).

4. A road construction quality detection method according to claim 2, It is characterized in that The lifting assembly (4) comprises a driving motor (401), wherein the driving motor (401) is arranged in a protective shell (104), and a rotating shaft (402) is fixed to the output end of the driving motor (401), and the top end of the rotating shaft (402) passes through the workbench (1) and a support plate (2) in sequence, and the top end of the rotating shaft (402) is fixed by a screw rod (403), and a telescopic rod (405) is embedded in the center of the upper surface of the other support plate (2), and the sleeve block (301) is sleeved on the screw rod (403), and the telescopic end of the telescopic rod (405) is fixedly connected to the lower surface of the fixed block (305).

5. A road construction quality detection method according to claim 4, It is characterized in that The drive motor (401) is fixedly connected to the inner bottom wall of the protective shell (104) via bolts, and a first bevel gear (404) is fixedly sleeved on the output end of the drive motor (401), and the first bevel gear (404) is connected to a driving member of the rotating assembly (5).

6. A road construction quality detection method according to claim 5, It is characterized in that The rotating assembly (5) comprises a second bevel gear (508), the second bevel gear (508) being meshedly connected with the first bevel gear (404), a connecting shaft (507) being fixedly penetrated at the center of the second bevel gear (508), a protective shell (505) being fixedly disposed on one side of the second bevel gear (508) inside the protective shell (104), a magnetic coupler (506) being disposed in the protective shell (505), an end portion of the connecting shaft (507) penetrating the protective shell (505) and being fixedly connected to the magnetic coupler (506), a driving sprocket (503) being disposed on one side of the protective shell (505) inside the protective shell (104), a transmission shaft (504) being fixedly penetrated at the center of the driving sprocket (503), an end portion of the transmission shaft (504) penetrating the protective shell (505) and being fixedly connected to the magnetic coupler (506), and the other end of the transmission shaft (504) being rotatably connected to the inner wall of the protective shell (104).

7. A road construction quality detection method according to claim 6, It is characterized in that A shaft (2013) passes through the drive cavity (202) and is rotatably connected to the cavity wall. A driven sprocket (501) is provided in the drive cavity (202). The driven sprocket (501) is fixed on the shaft (2013). The driven sprocket (501) and the driving sprocket (503) are connected via a transmission chain (502). The transmission chain (502) passes through the support plate (2) and the workbench (1).

8. A road construction quality detection method according to claim 2, It is characterized in that The water pump (6) is mounted on the bottom of the water tank (102) by means of bolts; a mounting shell (1021) is fixed to one side of the inner top of the water tank (102); the liquid level sensor (1022) is fixed inside the mounting shell (1021); and a detection end of the liquid level sensor (1022) passes through the mounting shell (1021) and extends into the water tank (102).

9. A road construction quality detection method according to claim 2, It is characterized in that The outer wall of the dewatering plate (302) is fixedly connected to the interior of the closed box (3); a plurality of spray heads (3021) are provided on the lower surface of the dewatering plate (302); the plurality of spray heads (3021) are made of silicone; and a sealing gasket (307) is bonded to the lower surface of the elastic silicone pad (306).

10. A road construction quality detection method according to claim 2, It is characterized in that A timer (105) is fixed to a corner of the upper surface of the workbench (1) close to the human body, and support legs (101) are fixed to four corners of the lower surface of the workbench (1), and the height of the water tank (102) is the same as that of the support legs (101).

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