Asphalt pavement water permeability coefficient detection equipment

Abstract

The invention discloses asphalt pavement water permeability coefficient detection equipment which comprises a base and a rack installed at the rear end of the base, a fixing plate is installed at the front end of the rack, an automatic cleaning mechanism is arranged at the bottom of the base, and a detection device is connected to the fixing plate through a sealing pressing mechanism. The sealing pressing mechanism comprises a stepping motor, a rotating rod, a group of driving gears, a group of fixed sleeves, a group of sliding rods, a group of strip-shaped racks, a water seepage instrument cover, an annular plate, a rotating motor, a rotating gear, an annular sliding rail, an annular rack, a group of connecting frames and a group of glue spraying heads. The device has the beneficial effects that the cleaning roller swings and rotates in a reciprocating manner and is matched with a plurality of air spraying holes to automatically blow detection points, the sealing and pressing mechanism drives the water seepage instrument cover to press downwards, a group of glue spraying heads rotate relatively, an annular plate at the bottom of the water seepage instrument cover is sealed, and the water leakage phenomenon is prevented; an electric heating plate in the annular plate performs hot melting on the waterproof sealant, so that the water seepage instrument cover and the detection device can be reset conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of road surface water seepage detection, in particular to a device for detecting water seepage coefficient of asphalt road surface. Background Art

[0002] Asphalt pavement water seepage detection is to use sealing materials to enclose the pavement test point to form a sealed area, then place the water seepage meter cover on the top of the sealed area and press it tightly, inject water into it to observe the water level change, and judge the pavement water seepage situation. When calculating the water seepage coefficient of asphalt pavement, the time required for the water level to drop from 100mL to 500mL is used as the standard. When the water level drops by 100mL, start the stopwatch immediately, and read the scale of the instrument tube once every 60s until the water level drops by 500mL.

[0003] The water permeability of asphalt pavement is an important indicator for evaluating its water tightness and anti-rutting ability. Exceeding the water permeability coefficient will cause water to invade the interface between the asphalt layer and the semi-rigid base layer, inducing interlayer shear failure, and freezing of water in winter will cause the asphalt mixture to crack. At present, in the process of testing the water permeability coefficient of asphalt pavement, manual cleaning of the test points is required. If the cleaning is not thorough or the water permeability meter cover is not tightly sealed, side leakage is likely to occur, affecting the water permeability coefficient test effect.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0005] In view of the above defects, the present invention provides an asphalt pavement water permeability coefficient detection device to solve the problem of pavement water permeability coefficient detection.

[0006] To achieve the above object, the present invention adopts the following technical solutions: An asphalt pavement water permeability coefficient detection device comprises a base and a frame installed at the rear end of the base, a fixing plate is installed at the front end of the frame, an automatic cleaning mechanism is provided at the bottom of the base, and a detection device is connected to the fixing plate through a sealing pressing mechanism; The sealing pressing mechanism includes a stepping motor, a rotating rod, a group of driving gears, a group of fixed sleeves, a group of sliding rods, a group of bar racks, a water seepage meter cover, an annular plate, a rotating motor, a rotating gear, an annular slide rail, an annular rack, a group of connecting frames and a group of glue spraying heads. The stepping motor is horizontally installed on the fixed plate, the rotating rod is installed on the rotating end of the stepping motor, a group of driving gears are installed on both sides of the rotating rod, a group of fixed sleeves are fixedly embedded on both sides of the fixed plate, a group of sliding rods are movably inserted in a group of fixed sleeves, a group of bar racks are installed at the front end of a group of sliding rods, and are respectively meshed with corresponding driving gears, the water seepage meter cover is installed at the bottom of a group of sliding rods, the annular plate is installed at the bottom of the water seepage meter cover, the rotating motor is installed on the left side of the annular plate, the rotating gear is installed on the rotating end of the rotating motor, the annular slide rail is installed on the annular plate, the bottom of the annular rack is slidably installed on the annular slide rail and meshes with the rotating gear, a group of connecting frames are installed on both sides of the annular rack, and a group of glue spraying heads are tiltedly inserted at the bottom of a group of connecting frames.

[0007] Furthermore, the automatic cleaning mechanism includes a driving motor, a worm, a worm wheel, a strip groove, a strip plate, a swing frame, a connecting rod, a cleaning roller, a transmission bevel gear and an arc-shaped rack. The driving motor is horizontally installed at the rear end of the bottom of the base, the worm is installed on the rotating end of the driving motor, the worm wheel is movably installed at the bottom of the base and meshes with the worm, the strip groove is opened on the worm wheel, the strip plate is fixedly installed in the strip groove, the rear end of the swing frame is movably hinged to the bottom of the base, one end of the connecting rod is hinged to the strip plate, and the other end is hinged to the swing frame, the cleaning roller is movably installed at the bottom of the swing frame, the transmission bevel gear is installed at the front end of the cleaning roller, and the arc-shaped rack is installed at the front end of the bottom of the base and meshes with the transmission bevel gear.

[0008] Furthermore, the cleaning roller is hollow inside, and the front end is connected to the air compressor on the base through an air intake pipe.

[0009] Furthermore, a plurality of cleaning brushes and a plurality of air jet holes are staggeredly arranged on the outer surface of the cleaning roller, and the diameters of the plurality of air jet holes gradually decrease near the front end.

[0010] Furthermore, the detection device includes a measuring cylinder, a capillary tube and a control switch. The measuring cylinder is fixedly installed at the center of the upper end of the permeability meter cover. One end of the capillary tube is connected to the measuring cylinder, and the other end is connected to the permeability meter cover. The control switch is installed on the capillary tube.

[0011] Furthermore, a plurality of guide wheels which are in contact with the inner wall of the annular rack are movably mounted on the annular plate, an annular sealing groove is formed at the bottom of the annular plate, and an electric heating plate is installed in the annular plate.

[0012] Furthermore, a bottom height of a group of connecting frames is higher than the annular plate, and a distance sensor is installed at the bottom of one of the connecting frames.

[0013] Furthermore, the rear ends of a group of glue spray heads are connected to the glue spray tanks on the base through rubber delivery hoses.

[0014] Furthermore, universal wheels are installed around the bottom of the base, and a circular through hole is opened at the upper front end.

[0015] The present invention provides an asphalt pavement water permeability coefficient detection device, which has the following beneficial effects: by moving the device to a pavement detection point and fixing the base by locking the universal wheel, the automatic cleaning mechanism uses a driving motor to drive the cleaning roller to swing back and forth, and at the same time, the cleaning roller is meshed with the arc rack through the transmission bevel gear to realize self-rotation, and cooperates with a plurality of air jet holes to automatically blow the detection point, thereby improving the cleaning effect; The sealing pressing mechanism uses a stepper motor to drive the water seepage meter cover to press down, and then the annular rack drives a group of glue spray heads to rotate relatively to seal the annular plate at the bottom of the water seepage meter cover to prevent water leakage. The detection device detects the water seepage coefficient of the asphalt pavement. After the detection is completed, the electric heating plate in the annular plate heat-melts the waterproof sealant to facilitate the resetting of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the base of the present invention.

[0017] Figure 2 It is a schematic diagram of the sealing pressing mechanism of the present invention.

[0018] Figure 3 For the present invention Figure 2 A partial enlarged view of point A in the middle.

[0019] Figure 4 Schematic diagram of the detection device of the present invention.

[0020] Figure 5 This is a top view of the annular rack of the present invention.

[0021] Figure 6 This is a bottom view of the annular plate of the present invention.

[0022] Figure 7 It is a schematic diagram of the automatic cleaning mechanism of the present invention.

[0023] Figure 8 It is a transmission schematic diagram of the swing frame of the present invention.

[0024] Fig. 9 It is a cross-sectional view of the cleaning roller of the present invention.

[0025] In the figure: 1, base; 2, frame; 3, fixed plate; 4, stepper motor; 5, rotating rod; 6, driving gear; 7, fixed sleeve; 8, sliding rod; 9, bar rack; 10, water seepage meter cover; 11, annular plate; 12, rotating motor; 13, rotating gear; 14, annular slide rail; 15, annular rack; 16, connecting frame; 17, glue spray head; 18, driving motor; 19, worm; 20, worm wheel; 21, bar groove; 22, bar plate ; 23. Swing frame; 24. Connecting rod; 25. Cleaning roller; 26. Transmission bevel gear; 27. Transmission bevel gear; 28. Intake pipe; 29. ​​Air compressor; 30. Cleaning brush; 31. Jet hole; 32. Measuring cylinder; 33. Capillary; 34. Control switch; 35. Guide wheel; 36. Annular sealing groove; 37. Electric heating plate; 38. Distance sensor; 39. Delivery hose; 40. Glue spray tank; 41. Universal wheel; 42. Circular through hole. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-9 As shown: an asphalt pavement water permeability coefficient detection device, comprising a base 1 and a frame 2 installed at the rear end of the base 1, a fixing plate 3 is installed at the front end of the frame 2, an automatic cleaning mechanism is provided at the bottom of the base 1, and a detection device is connected to the fixing plate 3 through a sealing pressing mechanism; The sealing pressing mechanism includes a stepping motor 4, a rotating rod 5, a group of driving gears 6, a group of fixed sleeves 7, a group of sliding rods 8, a group of bar racks 9, a water seepage meter cover 10, an annular plate 11, a rotating motor 12, a rotating gear 13, an annular slide rail 14, an annular rack 15, a group of connecting frames 16 and a group of glue spraying heads 17. The stepping motor 4 is horizontally installed on the fixed plate 3, the rotating rod 5 is installed on the rotating end of the stepping motor 4, a group of driving gears 6 are installed on both sides of the rotating rod 5, a group of fixed sleeves 7 are fixedly embedded on both sides of the fixed plate 3, a group of sliding rods 8 are movably inserted in a group of fixed sleeves 7, and a group of bar The shaped rack 9 is installed at the front end of a group of sliding rods 8 and meshes with the corresponding driving gears 6 respectively. The water seepage meter cover 10 is installed at the bottom of a group of sliding rods 8. The annular plate 11 is installed at the bottom of the water seepage meter cover 10. The rotating motor 12 is installed on the left side of the annular plate 11. The rotating gear 13 is installed on the rotating end of the rotating motor 12. The annular slide rail 14 is installed on the annular plate 11. The bottom of the annular rack 15 is slidably installed on the annular slide rail 14 and meshes with the rotating gear 13. A group of connecting frames 16 are installed on both sides of the annular rack 15, and a group of glue spray heads 17 are obliquely inserted at the bottom of a group of connecting frames 16.

[0027] The automatic cleaning mechanism includes a driving motor 18, a worm 19, a worm wheel 20, a strip groove 21, a strip plate 22, a swing frame 23, a connecting rod 24, a cleaning roller 25, a transmission bevel gear 26 and an arc rack 27. The driving motor 18 is horizontally installed at the rear end of the bottom of the base 1, the worm 19 is installed on the rotating end of the driving motor 18, the worm wheel 20 is movably installed at the bottom of the base 1 and meshes with the worm 19, the strip groove 21 is opened on the worm wheel 20, the strip plate 22 is fixedly installed in the strip groove 21, the rear end of the swing frame 23 is movably hinged at the bottom of the base 1, one end of the connecting rod 24 is hinged to the strip plate 22, and the other end is hinged to the swing frame 23, the cleaning roller 25 is movably installed at the bottom of the swing frame 23, the transmission bevel gear 26 is installed at the front end of the cleaning roller 25, and the arc rack 27 is installed at the front end of the bottom of the base 1 and meshes with the transmission bevel gear 26.

[0028] The cleaning roller 25 is hollow inside, and its front end is connected to an air compressor 29 on the base 1 through an air intake pipe 28 .

[0029] A plurality of cleaning brushes 30 and a plurality of air jet holes 31 are alternately arranged on the outer surface of the cleaning roller 25, and the diameters of the plurality of air jet holes 31 gradually decrease near the front end.

[0030] The detection device includes a measuring cylinder 32, a capillary 33 and a control switch 34. The measuring cylinder 32 is fixedly mounted at the center of the upper end of the water seepage meter cover 10. One end of the capillary 33 is connected to the measuring cylinder 32, and the other end is connected to the water seepage meter cover 10. The control switch 34 is mounted on the capillary 33.

[0031] A plurality of guide wheels 35 are movably mounted on the annular plate 11 and are fitted with the inner wall of the annular rack 15 . An annular sealing groove 36 is formed at the bottom of the annular plate 11 . An electric heating plate 37 is mounted inside the annular plate 11 .

[0032] The bottom of a group of connecting frames 16 is higher than the annular plate 11 , and a distance sensor 38 is installed at the bottom of one of the connecting frames 16 .

[0033] The rear ends of a group of glue spray heads 17 are connected to the glue spray tanks 40 on the base 1 through the conveying hoses 39 .

[0034] Universal wheels 41 are installed around the bottom of the base 1, and a circular through hole 42 is opened at the upper front end.

[0035] Working principle of this embodiment: the electrical equipment used by the device is controlled by an external controller, universal wheels 41 are installed around the bottom of the base 1, and a circular through hole 42 corresponding to the detection device is opened at the upper front end. When using, the user first pushes the device to the road surface detection point and fixes the base 1 by locking the universal wheels 41; During automatic cleaning: the driving motor 18 is horizontally mounted at the rear end of the bottom of the base 1, the worm 19 is mounted on the rotating end of the driving motor 18, the worm wheel 20 is movably mounted at the bottom of the base 1 and meshed with the worm 19, the strip groove 21 is opened on the worm wheel 20, the strip plate 22 is fixedly mounted in the strip groove 21, the rear end of the swing frame 23 is movably hinged at the bottom of the base 1, one end of the connecting rod 24 is hinged to the strip plate 22, and the other end is hinged to the swing frame 23, the cleaning roller 25 is movably mounted at the bottom of the swing frame 23 through a fastening bearing, the transmission bevel gear 26 is mounted at the front end of the cleaning roller 25, the arc rack 27 is mounted at the front end of the bottom of the base 1, and meshed with the transmission bevel gear 26, the cleaning roller 25 is hollow inside, and the front end is connected to the air compressor 29 on the base 1 through the air intake pipe 28, and the outer surface of the cleaning roller 25 is staggered with a plurality of cleaning brushes 30 and a plurality of jet holes 31, and the diameters of the plurality of jet holes 31 gradually decrease near the front end, which is used to maintain the balance of the jet pressure, such as Figure 7 — Fig. 9 As shown, the initial position of the swing frame 23 is located on one side of the circular through hole 42, and the driving motor 18 drives the worm wheel 20 and the strip plate 22 to rotate through the worm 19, and drives the swing frame 23 and the cleaning roller 25 to reciprocate around the rear end hinge point through the connecting rod 24. The cleaning roller 25 is meshed with the front end transmission bevel gear 26 and the arc rack 27 to realize self-rotation, and cooperates with a plurality of air jet holes 31 to automatically purge the detection point, thereby improving the cleaning effect; When the seal is pressed down: the stepper motor 4 is horizontally installed on the fixed plate 3, the rotating rod 5 is installed on the rotating end of the stepper motor 4, a group of driving gears 6 are installed on both sides of the rotating rod 5, a group of fixed sleeves 7 are fixedly embedded on both sides of the fixed plate 3, a group of sliding rods 8 are movably inserted in a group of fixed sleeves 7, a group of bar racks 9 are installed at the front end of a group of sliding rods 8, and are respectively engaged with the corresponding driving gears 6, the water seepage meter cover 10 is installed at the bottom of a group of sliding rods 8, the annular plate 11 is installed at the bottom of the water seepage meter cover 10, the rotating motor 12 is installed on the left side of the annular plate 11, the rotating gear 13 is installed on the rotating end of the rotating motor 12, and the annular slide rail 14 is installed on the annular plate 11 The bottom of the annular rack 15 is slidably mounted on the annular slide rail 14 and meshes with the rotating gear 13. A group of connecting frames 16 are mounted on both sides of the annular rack 15. A group of glue spray heads 17 are obliquely inserted at the bottom of a group of connecting frames 16. A plurality of guide wheels 35 that fit the inner wall of the annular rack 15 are movably mounted on the annular plate 11. An annular sealing groove 36 is opened at the bottom of the annular plate 11. An electric heating plate 37 is installed in the annular plate 11. The bottom height of a group of connecting frames 16 is higher than that of the annular plate 11. A distance sensor 38 is installed at the bottom of one of the connecting frames 16. The rear ends of a group of glue spray heads 17 are connected to the glue spray tank 40 on the base 1 through a conveying hose 39, such as Figure 2 — Figure 6As shown, the stepper motor 4 rotates forward, and drives a group of sliding rods 8 and a water seepage meter cover 10 to be pressed down to the road surface detection point through the rotating rod 5 and a group of driving gears 6. A group of connecting frames 16 are higher than the road surface. The distance sensor 38 is used to detect the height from the ground. Then, the rotating motor 12 drives the annular rack 15 to rotate by rotating the gear 13, and drives a group of inclined glue spraying heads 17 to rotate through a group of connecting frames 16, and sprays waterproof sealant on the annular sealing groove 36 at the annular plate 11 to achieve sealing of the water seepage meter cover 10 to prevent water leakage. The detection device detects the water seepage coefficient of the asphalt pavement. This is the prior art. After the detection is completed, the electric heating plate 37 in the annular plate 11 hot-melts the waterproof sealant, and the stepper motor 4 reverses to facilitate the resetting of the water seepage meter cover 10 and the detection device.

[0036] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An asphalt pavement water permeability coefficient detection device, comprising a base (1) and a frame (2) mounted on the rear end of the base (1), a fixing plate (3) being mounted on the front end of the frame (2), characterized in that: The bottom of the base (1) is provided with an automatic cleaning mechanism, and the fixed plate (3) is connected to a detection device via a sealing pressing mechanism; The sealing pressing mechanism comprises a stepping motor (4), a rotating rod (5), a group of driving gears (6), a group of fixed sleeves (7), a group of sliding rods (8), a group of bar-shaped racks (9), a water seepage meter cover (10), an annular plate (11), a rotating motor (12), a rotating gear (13), an annular slide rail (14), an annular rack (15), a group of connecting frames (16) and a group of glue spraying heads (17), wherein the stepping motor (4) is horizontally mounted on the fixed plate (3), the rotating rod (5) is mounted on the rotating end of the stepping motor (4), a group of driving gears (6) is mounted on both sides of the rotating rod (5), a group of fixed sleeves (7) is fixedly embedded on both sides of the fixed plate (3), and a group of sliding rods (8) is movably inserted in a group of fixed sleeves (7). , a group of bar-shaped racks (9) are mounted on the front ends of a group of sliding rods (8) and are respectively meshed with corresponding driving gears (6); the water seepage meter cover (10) is mounted on the bottom of a group of sliding rods (8); the annular plate (11) is mounted on the bottom of the water seepage meter cover (10); the rotating motor (12) is mounted on the left side of the annular plate (11); the rotating gear (13) is mounted on the rotating end of the rotating motor (12); the annular slide rail (14) is mounted on the annular plate (11); the bottom of the annular rack (15) is slidably mounted on the annular slide rail (14) and is meshed with the rotating gear (13); a group of connecting frames (16) are mounted on both sides of the annular rack (15); and a group of glue spray heads (17) are obliquely inserted at the bottom of a group of connecting frames (16).

2. The asphalt pavement water permeability testing device according to claim 1, characterized in that: The automatic cleaning mechanism comprises a driving motor (18), a worm (19), a worm wheel (20), a strip groove (21), a strip plate (22), a swing frame (23), a connecting rod (24), a cleaning roller (25), a transmission bevel gear (26) and an arc-shaped rack (27), wherein the driving motor (18) is horizontally mounted at the rear end of the bottom of the base (1), the worm (19) is mounted on the rotating end of the driving motor (18), the worm wheel (20) is movably mounted at the bottom of the base (1) and meshes with the worm (19), and the strip groove (21) is meshed with the worm (19). 1) is opened on the worm gear (20), the strip plate (22) is fixedly installed in the strip groove (21), the rear end of the swing frame (23) is movably hinged to the bottom of the base (1), one end of the connecting rod (24) is hinged to the strip plate (22), and the other end is hinged to the swing frame (23), the cleaning roller (25) is movably installed at the bottom of the swing frame (23), the transmission bevel gear (26) is installed at the front end of the cleaning roller (25), and the arc-shaped rack (27) is installed at the front end of the bottom of the base (1) and meshes with the transmission bevel gear (26).

3. The asphalt pavement water permeability testing device according to claim 2, characterized in that: The cleaning roller (25) is hollow inside, and its front end is connected to an air compressor (29) on the base (1) via an air intake pipe (28).

4. The asphalt pavement water permeability testing device according to claim 2, characterized in that: The outer surface of the cleaning roller (25) is provided with a plurality of cleaning brushes (30) and a plurality of air jet holes (31) arranged in an alternating manner, and the diameters of the plurality of air jet holes (31) gradually decrease as they approach the front end.

5. The asphalt pavement water permeability testing device according to claim 1, characterized in that: The detection device comprises a measuring cylinder (32), a capillary tube (33) and a control switch (34); the measuring cylinder (32) is fixedly mounted at the center of the upper end of the water seepage meter cover (10); one end of the capillary tube (33) is connected to the measuring cylinder (32) and the other end is connected to the water seepage meter cover (10); and the control switch (34) is mounted on the capillary tube (33).

6. The asphalt pavement water permeability testing device according to claim 1, characterized in that: A plurality of guide wheels (35) are movably mounted on the annular plate (11) and are in contact with the inner wall of the annular rack (15). An annular sealing groove (36) is formed at the bottom of the annular plate (11). An electric heating plate (37) is mounted inside the annular plate (11).

7. The asphalt pavement water permeability testing device according to claim 1, characterized in that: The bottom of a group of connecting frames (16) is higher than the annular plate (11), and a distance sensor (38) is installed at the bottom of one of the connecting frames (16).

8. The asphalt pavement water permeability testing device according to claim 1, characterized in that: The rear ends of a group of glue spray heads (17) are connected to the glue spray tank (40) on the base (1) through the delivery hoses (39).

9. The asphalt pavement water permeability testing device according to claim 1, characterized in that: Universal wheels (41) are installed around the bottom of the base (1), and a circular through hole (42) is opened at the upper front end.

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