Ground permeability testing device for highway maintenance

Abstract

The present invention belongs to the field of ground permeability detection, and relates to a ground permeability detection device for highway maintenance, including a mobile base and a cleaning mechanism, the cleaning mechanism including a cleaning box and an electric roller brush, the cleaning box is arranged below the screw slide module, and the lower edge of the electric roller brush is located outside the cleaning box; the adjustment mechanism includes a sealing cylinder, a cylinder rack and a telescopic frame, and the sealing cylinder is fixed at the center of the cylinder rack; the testing mechanism includes a water level sensor and an air pressure sensor, and the water level sensor and the air pressure sensor are fixed on the top cover, and an air inlet pipe and a water inlet pipe connected to the sealing cylinder are fixed on the top cover. When the ground is tested for permeability, the cylinder rack cooperates with the telescopic frame to keep the sealing cylinder in a raised state, so that the electric roller brush and the cleaning box of the cleaning mechanism can pass from under the sealing cylinder. After the ground to be tested is cleaned, the sealing cylinder is placed on the ground, and finally the height of the liquid level drop in the sealing cylinder is tested by the testing mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of ground permeability detection, in particular to a ground permeability detection device for highway maintenance. Background Art

[0002] After the construction of highway engineering structures is completed, multiple tests are required on the ground of the structures. Among these tests, the ground needs to be tested for water seepage, among which the permeability of the road surface is an important indicator. If the permeability of the road surface is poor, it is easy to cause water accumulation on the road surface. Therefore, testers usually use existing permeability testing devices to regularly test the permeability of the road surface. During the water seepage testing process, the ground needs to be sealed, an appropriate amount of water is added, and the corresponding testing device is placed on the road surface to observe the water seepage of the bridge within a certain period of time. However, in the existing road permeability testing, the upper end of the measuring cylinder on the device is usually directly exposed to the air. When the water level inside the measuring cylinder continues to drop, the water pressure inside the measuring cylinder will gradually decrease, that is, it is impossible to ensure that the water pressure inside the measuring cylinder is always in a constant state, which is easy to reduce the accuracy of the road water seepage test results. At the same time, most of the existing road permeability testing devices can only measure the speed of water infiltration, and cannot simulate the permeability of the road surface when a car is driving on the road surface, which reduces the reliability of the road water seepage test results.

[0003] The patent application with publication number CN118362480A discloses a ground permeability detection device for highway maintenance, including sealing mud, a base, and a detection unit, wherein the detection unit includes a placement plate installed on the base through a fixing component; and an auxiliary detection unit, wherein the auxiliary detection unit includes a clamp fixedly installed on the placement plate. This patent can detect the permeability of the road surface when the inside of the glass bottle is under a constant pressure state by setting an electric push rod, a pressure sensor, and a rubber disc, which can effectively improve the accuracy of the detection result. By cooperating with the rubber disc and multiple electronic vibrators, the permeability of the road surface can be detected when simulating a car driving on the road surface, which effectively improves the reliability of the road surface permeability detection result and the flexibility of the device. However, this patent still has some shortcomings: it is difficult to clean the road surface to be detected before the detection, resulting in impurities remaining on the road surface that will affect the permeability detection result and reduce the sealing effect between the detection device and the road surface. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that it is difficult to perform permeability detection on the ground under different road conditions, the present invention provides a ground permeability detection device for highway maintenance to solve the above problem.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a ground permeability detection device for highway maintenance, including a mobile base, on which a screw slide module is fixed, and also including a cleaning mechanism, an adjusting mechanism and a testing mechanism, the cleaning mechanism including a cleaning box and an electric roller brush, the cleaning box is arranged below the screw slide module and connected to the slide of the screw slide module, the electric roller brush is rotatably installed in the cleaning box, and the lower edge of the electric roller brush is located outside the cleaning box; the adjusting mechanism includes a sealing cylinder, a cylinder frame and a telescopic frame, the two ends of the cylinder frame are fixedly connected to the top of the telescopic frame, the sealing cylinder is fixed at the center of the cylinder frame, and a top cover is fixed on the top of the sealing cylinder; the testing mechanism includes a water level sensor and an air pressure sensor, the water level sensor and the air pressure sensor are fixed on the top cover and the ends are located in the sealing cylinder, and an air inlet pipe and a water inlet pipe connected to the sealing cylinder are also fixed on the top cover.

[0006] Preferably, the cleaning mechanism also includes a connecting frame, a sliding rod and a compression spring, the connecting frame is fixedly connected to the slide of the screw slide module, the sliding rod is fixed to the top of the cleaning box and is slidably connected to the connecting frame, and the compression spring is sleeved on the sliding rod and its two ends are respectively abutted against the cleaning box and the connecting frame.

[0007] Preferably, a support plate is fixed to one side of the cleaning box, a push rod is slidably mounted on the support plate, a needle plate is fixed to one end of the push rod, the needle plate is set toward the ground, a ball head is fixed to the other end of the push rod, cams are coaxially fixed to both ends of the electric roller brush, the cam can push the ball head to move when it rotates, and a return spring is abutted between the ball head and the support plate.

[0008] Preferably, the adjustment mechanism also includes an electric push rod, a lever support, a pressure rod, a vertical rod and a pressure head. The middle part of the pressure rod is rotatably mounted on the lever support, and the lever support is fixed on the top cover. One end of the pressure rod is slidably connected to the top of the vertical rod via a connecting seat, and the other end of the pressure rod is slidably connected to the end of the electric push rod. The electric push rod is used to drive the pressure rod to deflect up and down with the lever support as the center. The vertical rod vertically passes through the top cover and is slidably connected to the top cover, and the pressure head is installed at the bottom of the vertical rod.

[0009] Preferably, the pressure head comprises a semicircular rubber block, a fixing plate and a hinge seat, one end of the fixing plate is rotatably connected to the bottom of the vertical pole through the hinge seat, and the semicircular rubber block is fixed to the bottom of the fixing plate.

[0010] Preferably, the other end of the fixing plate is connected to the middle part of the vertical pole through an elastic telescopic rod, and the two ends of the elastic telescopic rod are rotatably connected to the fixing plate and the vertical pole respectively.

[0011] Preferably, a threaded seat is fixed on the cartridge frame, a screw rod threadably connected thereto is arranged in the threaded seat, the bottom of the screw rod is rotatably connected to the movable base, and a hand wheel is fixed on the top of the screw rod.

[0012] Preferably, a ring plate is fixed at the bottom of the sealing tube, the inner diameter of the ring plate is the same as the inner diameter of the sealing tube, an annular airbag is fixed at the bottom of the ring plate near the outer circle, and an annular sealing strip is fixed at the bottom of the ring plate near the inner circle.

[0013] The beneficial effects of the present invention are:

[0014] A cleaning mechanism and an adjusting mechanism are provided. When the ground is subjected to a permeability test, the cylinder rack cooperates with the telescopic rack to keep the sealing cylinder in a raised state so that the bottom of the sealing cylinder is off the ground, and the electric roller brush and the cleaning box of the cleaning mechanism can pass under the sealing cylinder. After the ground to be tested is cleaned, the sealing cylinder is placed on the ground, and finally the height to which the liquid level in the sealing cylinder drops can be tested by the testing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the best embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the mobile base of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the screw slide module of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the cleaning box of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the needle plate of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the cartridge holder of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the ring plate of the present invention;

[0023] Figure 8It is a structural schematic diagram of the semicircular rubber block of the present invention.

[0024] 1. The movable base; 2. The screw slide module; 3. The cleaning mechanism; 4. The adjusting mechanism; 5. The testing mechanism; 6. The cleaning box; 7. The electric roller brush; 8. The sealing cylinder; 9. The cylinder rack; 10. The telescopic rack; 11. The top cover; 12. The water level sensor; 13. The air pressure sensor; 14. The air inlet pipe; 15. The water inlet pipe; 16. The connecting frame; 17. The sliding rod; 18. The compression spring; 19. The supporting plate; 20. The push rod; 21. The needle plate; 22. The ball head; 23. The cam; 24. The reset spring; 25. The electric push rod; 26. The lever support; 27. The pressure rod; 28. The vertical rod; 29. ​​The semicircular rubber block; 30. The fixing plate; 31. The hinge seat; 32. The elastic telescopic rod; 33. The threaded seat; 34. The screw; 35. The hand wheel; 36. The ring plate; 37. The annular air bag. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] like Figures 1 to 8 As shown, the present invention provides an embodiment of a ground permeability detection device for highway maintenance, including a mobile base 1, on which a screw slide module 2 is fixed, and also includes a cleaning mechanism 3, an adjustment mechanism 4 and a testing mechanism 5. The cleaning mechanism 3 includes a cleaning box 6 and an electric roller brush 7. The cleaning box 6 is arranged below the screw slide module 2 and is connected to the slide of the screw slide module 2. The electric roller brush 7 is rotatably installed in the cleaning box 6, and the lower edge of the electric roller brush 7 is located outside the cleaning box 6.

[0027] The cleaning mechanism 3 also includes a connecting frame 16, a sliding rod 17 and a clamping spring 18. The connecting frame 16 is fixedly connected to the slide of the screw slide module 2. The sliding rod 17 is fixed to the top of the cleaning box 6 and is slidably connected to the connecting frame 16. The clamping spring 18 is sleeved on the sliding rod 17 and its two ends are respectively abutted against the cleaning box 6 and the connecting frame 16.

[0028] Before the permeability test of the road surface is conducted, the connecting frame 16 is driven to move horizontally by the slide of the screw slide module 2. During the horizontal movement of the connecting frame 16, the cleaning box 6 connected thereto is driven to move, so that the electric roller brush 7 installed in the cleaning box 6 can clean the road surface to be tested. During the movement of the electric roller brush 7, the compression spring 18 always presses the cleaning box 6 downward by elastic force, so that the electric roller brush 7 can keep in contact with the ground, and at the same time increase the friction between the electric roller brush 7 and the road surface, thereby improving the cleaning effect of the electric roller brush 7 on the road surface. In addition, a plurality of convex strips can be fixed inside the cleaning box 6. When the electric roller brush 7 rotates, it will generate friction with the convex strips, thereby cleaning the dirt adhering to the electric roller brush 7, and ensuring the cleanliness of the electric roller brush 7 itself.

[0029] A support plate 19 is also fixed to one side of the cleaning box 6, and a push rod 20 is slidably installed on the support plate 19. A needle plate 21 is fixed to one end of the push rod 20, and the needle plate 21 is set toward the ground. A ball head 22 is fixed to the other end of the push rod 20. Cams 23 are coaxially fixed to both ends of the electric roller brush 7. When the cam 23 rotates, it can push the ball head 22 to move. A reset spring 24 is abutted between the ball head 22 and the support plate 19. The ball head 22 and the push rod 20 are reset by the elastic force of the reset spring 24, so that the cam 23 can push the ball head 22 to move again.

[0030] When inspecting the ground, some dirt on the ground will be tightly adsorbed on the ground, blocking the pores of the ground, affecting the permeability of the ground, and causing large errors in the inspection results. The present invention drives the cam 23 to rotate by rotating the electric roller brush 7. When the cam 23 rotates, it pushes the ball head 22 to move. The ball head 22 is connected to the push rod 20 and then drives the push rod 20 to move. The movement of the push rod 20 drives the needle plate 21 to move. The needle tip of the needle plate 21 is set toward the ground and can contact the ground. In the process of the needle plate 21 moving unidirectionally with the cleaning box 6, the push rod 20 will also push the needle plate 21 to move back and forth, realizing a similar back and forth scrubbing action, so that the needle plate 21 can tear and break the material tightly adsorbed on the ground and scrape it off, so that the subsequent electric roller brush 7 can clean the ground to be inspected.

[0031] The adjusting mechanism 4 comprises a sealing cylinder 8, a cylinder frame 9 and a telescopic frame 10. Both ends of the cylinder frame 9 are fixedly connected to the top of the telescopic frame 10. The sealing cylinder 8 is fixed at the center of the cylinder frame 9. A threaded seat 33 is also fixed on the cylinder frame 9. A screw 34 threadedly connected to the threaded seat 33 is provided in the threaded seat 33. The bottom of the screw 34 is rotatably connected to the movable base 1. A hand wheel 35 is fixed to the top of the screw 34. Before the cleaning box 6 moves, the hand wheel 35 is turned and the cylinder frame 9 and the sealing cylinder 8 are driven to rise upward by the screw 34, so that the cleaning box 6 can pass smoothly from under the sealing cylinder 8 to clean the ground to be inspected. A top cover 11 is fixed to the top of the sealing cylinder 8.

[0032] The testing mechanism 5 includes a water level sensor 12 and an air pressure sensor 13 , which are fixed on the top cover 11 and have their ends located in the sealing cylinder 8 . An air inlet pipe 14 and a water inlet pipe 15 connected to the sealing cylinder 8 are also fixed on the top cover 11 .

[0033] An annular plate 36 is fixed to the bottom of the sealing tube 8, and the inner diameter of the annular plate 36 is the same as the inner diameter of the sealing tube 8. An annular air bag 37 is fixed to the bottom of the annular plate 36 near the outer circle. After the annular air bag 37 is compressed, the contact area with the ground is larger, thereby improving the sealing inside the sealing tube 8. An annular sealing strip is fixed to the bottom of the annular plate 36 near the inner circle.

[0034] When testing the ground permeability, turn the hand wheel 35 to rotate the screw 34, and the rotation of the screw 34 drives the cylinder frame 9 and the sealing cylinder 8 to move downward until the bottom of the sealing cylinder 8 contacts the ground. At this time, the gap between the outer ring of the sealing cylinder 8 and the ground is sealed by the annular air bag 37, and the gap between the inner ring of the sealing cylinder 8 and the ground is sealed by the annular sealing strip. Then, water is injected into the sealing cylinder 8 through the water inlet pipe 15. After the water injection is completed, air is filled into the sealing cylinder 8 to make the air pressure in the sealing cylinder 8 meet the test requirements. Finally, the height of the water level drop in the sealing cylinder 8 is recorded by the water level sensor 12.

[0035] The adjusting mechanism 4 also includes an electric push rod 25, a lever support 26, a pressure rod 27, a vertical rod 28 and a pressure head. The middle part of the pressure rod 27 is rotatably mounted on the lever support 26, the lever support 26 is fixed on the top cover 11, one end of the pressure rod 27 is slidably connected to the top of the vertical rod 28 through a connecting seat, and the other end of the pressure rod 27 is slidably connected to the end of the electric push rod 25. The electric push rod 25 is used to drive the pressure rod 27 to deflect up and down with the lever support 26 as the center. The vertical rod 28 vertically passes through the top cover 11 and is slidably connected to the top cover 11, and the pressure head is installed at the bottom of the vertical rod 28.

[0036] The pressure head includes a semicircular rubber block 29 , a fixing plate 30 and a hinge seat 31 . One end of the fixing plate 30 is rotatably connected to the bottom of the vertical rod 28 through the hinge seat 31 , and the semicircular rubber block 29 is fixed to the bottom of the fixing plate 30 .

[0037] The other end of the fixed plate 30 is connected to the middle of the vertical pole 28 through an elastic telescopic rod 32 , and the two ends of the elastic telescopic rod 32 are rotatably connected to the fixed plate 30 and the vertical pole 28 , respectively.

[0038] In order to detect the permeability of the road surface under pressure, after the sealing cylinder 8 is lowered to the ground, the electric push rod 25 can be used to drive one end of the pressure rod 27 to move upward, thereby causing the other end of the pressure rod 27 to move downward and drive the vertical rod 28 to move downward. The vertical rod 28 moves downward to press the semicircular rubber block 29 against the ground so as to apply pressure to the ground. When the electric push rod 25 keeps moving up and down, it can also drive the semicircular rubber block 29 to continuously roll over the ground, simulating the scene of a vehicle running over a flooded road surface during driving. After the electric push rod 25 has worked for a period of time, it is turned off to keep the semicircular rubber block 29 still. When the water surface in the sealing cylinder 8 is calm, the height of the water level drop can be recorded by the water level sensor 12 to detect the permeability of the road surface under pressure.

[0039] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A ground permeability detection device for highway maintenance, comprising a mobile base (1), a screw slide module (2) being fixed on the mobile base (1), characterized in that: It also comprises a cleaning mechanism (3), an adjusting mechanism (4) and a testing mechanism (5), wherein the cleaning mechanism (3) comprises a cleaning box (6) and an electric roller brush (7), wherein the cleaning box (6) is arranged below the screw slide module (2) and is connected to the slide of the screw slide module (2), and the electric roller brush (7) is rotatably mounted in the cleaning box (6), and the lower edge of the electric roller brush (7) is located outside the cleaning box (6); A support plate (19) is also fixed to one side of the cleaning box (6), a push rod (20) is slidably mounted on the support plate (19), a needle plate (21) is fixed to one end of the push rod (20), the needle plate (21) is arranged facing the ground, a ball head (22) is fixed to the other end of the push rod (20), cams (23) are coaxially fixed to both ends of the electric roller brush (7), the cams (23) are able to push the ball head (22) to move when rotating, and a return spring (24) is abutted between the ball head (22) and the support plate (19). The regulating mechanism (4) comprises a sealing cylinder (8), a cylinder frame (9) and a telescopic frame (10), the two ends of the cylinder frame (9) are fixedly connected to the top of the telescopic frame (10), the sealing cylinder (8) is fixed at the center of the cylinder frame (9), and a top cover (11) is fixed to the top of the sealing cylinder (8); The testing mechanism (5) comprises a water level sensor (12) and an air pressure sensor (13); the water level sensor (12) and the air pressure sensor (13) are fixed on the top cover (11) and their ends are located in the sealing cylinder (8); an air inlet pipe (14) and a water inlet pipe (15) connected to the sealing cylinder (8) are also fixed on the top cover (11); The adjustment mechanism (4) further comprises an electric push rod (25), a lever support (26), a pressure rod (27), a vertical rod (28) and a pressure head, wherein the middle portion of the pressure rod (27) is rotatably mounted on the lever support (26), the lever support (26) is fixed on the top cover (11), one end of the pressure rod (27) is slidably connected to the top of the vertical rod (28) via a connecting seat, the other end of the pressure rod (27) is slidably connected to the end of the electric push rod (25), the electric push rod (25) is used to drive the pressure rod (27) to deflect up and down with the lever support (26) as the center, the vertical rod (28) vertically passes through the top cover (11) and is slidably connected to the top cover (11), and the pressure head is mounted on the bottom of the vertical rod (28); The pressure head comprises a semicircular rubber block (29), a fixing plate (30) and a hinge seat (31); one end of the fixing plate (30) is rotatably connected to the bottom of the vertical rod (28) via the hinge seat (31); and the semicircular rubber block (29) is fixed to the bottom of the fixing plate (30).

2. The ground permeability detection device for highway maintenance according to claim 1, characterized in that: The cleaning mechanism (3) further comprises a connecting frame (16), a sliding rod (17) and a clamping spring (18); the connecting frame (16) is fixedly connected to the slide of the screw slide module (2); the sliding rod (17) is fixed to the top of the cleaning box (6) and is slidably connected to the connecting frame (16); the clamping spring (18) is sleeved on the sliding rod (17) and has two ends respectively abutting against the cleaning box (6) and the connecting frame (16).

3. The ground permeability detection device for highway maintenance according to claim 1, characterized in that: The other end of the fixed plate (30) is connected to the middle of the vertical pole (28) via an elastic telescopic rod (32), and the two ends of the elastic telescopic rod (32) are rotatably connected to the fixed plate (30) and the vertical pole (28) respectively.

4. The ground permeability detection device for highway maintenance according to claim 1, characterized in that: A threaded seat (33) is also fixed on the cartridge frame (9), a screw rod (34) threadably connected thereto is disposed in the threaded seat (33), the bottom of the screw rod (34) is rotatably connected to the movable base (1), and a hand wheel (35) is fixed to the top of the screw rod (34).

5. The ground permeability detection device for highway maintenance according to claim 1, characterized in that: A ring plate (36) is fixed to the bottom of the sealing cylinder (8), the inner diameter of the ring plate (36) being the same as the inner diameter of the sealing cylinder (8), an annular air bag (37) is fixed to the bottom of the ring plate (36) near the outer ring, and an annular sealing strip is fixed to the bottom of the ring plate (36) near the inner ring.

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