Road quality detection device

Abstract

The present invention relates to the field of road detection devices, and in particular to a road quality detection device, comprising a base, a motor mounted on the upper surface of the base via a lifting mechanism, an output shaft of the motor connected to an inner cylinder via a detachable mechanism, a connecting ring fixedly connected to the lower end of the inner cylinder, an outer cylinder sleeved on the outer side of the inner cylinder, a chassis fixedly connected to the lower end of the outer cylinder, and equidistantly arranged dividing plates obliquely inserted into the inner wall of the chassis, the connecting ring rotatably cooperates with the inner wall of the chassis, and the lower surface of the connecting ring engages with each dividing plate; when the connecting ring rotates, several dividing plates move closer to or away from each other, and the dividing plates block the inner wall of the chassis after approaching each other; a locking mechanism is inserted into the lower surface of the chassis. This solution can block the lower end port after sampling the cushion layer, preventing the loose cushion layer from scattering when it is taken out, thereby facilitating complete sampling.

Description

Technical Field

[0001] The present invention relates to the field of road detection devices, and in particular to a road quality detection device. Background Art

[0002] After the construction of a road is completed, it is necessary to inspect the quality of the road before it is put into use. During the inspection, it is necessary to take samples of the road. The current sampling device uses a cylinder knife to sample the road. The road surface usually consists of a surface layer, a base layer and a cushion layer. The material for building the cushion layer may not be very strong, but it must have good heat insulation and water insulation properties. Generally, local materials are used as the principle, and loose granular materials such as coarse sand, gravel, crushed stone, coal slag, and slag are selected. Therefore, during the sampling process, if you want to take a more complete sample, the cylinder knife should be moved as downward as possible. Since the cushion layer is relatively loose, the cushion layer is often incomplete when it is extracted after the knife is lowered. That is, there is no practical reference value for the depth and density of the cushion layer in the sample. Therefore, the sampling of the existing detection device is incomplete and cannot achieve the effect of comprehensive sampling. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a road quality detection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a road quality detection device, comprising a base, a motor mounted on the upper surface of the base via a lifting mechanism, an output shaft of the motor connected to an inner cylinder via a detachable mechanism, a connecting ring fixedly connected to the lower end of the inner cylinder, an outer cylinder sleeved on the outer side of the inner cylinder, a chassis fixedly connected to the lower end of the outer cylinder, and equidistantly arranged split plates obliquely inserted into the inner wall of the chassis, the connecting ring rotatably engaged with the inner wall of the chassis, and the lower surface of the connecting ring meshes with each split plate;

[0005] When the connecting ring rotates, the plurality of split plates move closer to or away from each other, and the split plates block the inner wall of the chassis when they move closer to each other;

[0006] A locking mechanism is inserted into the lower surface of the chassis, which locks the splitter plate when pushed upward.

[0007] Preferably, the lifting mechanism includes an inclined frame fixedly mounted on the upper surface of the base platform, a top plate fixedly mounted on the upper end of the inclined frame, a telescopic cylinder fixedly mounted on the lower surface of the top plate, and a lifting plate fixedly mounted on the telescopic end of the telescopic cylinder, and the side of the lifting plate is fixedly mounted on the motor.

[0008] Preferably, the upper surface of the lifting plate is fixedly connected with a guide rod, the guide rod slides through the upper surface of the top plate, and the upper ends of several guide rods are commonly fixedly connected with a stabilizing plate.

[0009] Preferably, the detachable mechanism includes a mounting seat fixedly connected to the motor output shaft, a mounting flange is fixedly provided on the upper end of the inner cylinder, the mounting seat is fixedly connected to the mounting flange, and an ejection mechanism is provided on the inner top surface of the inner cylinder.

[0010] Preferably, the ejection mechanism includes a push plate slidably arranged on the inner side of the inner cylinder, the upper surface of the push plate is provided with a threaded cylinder, the lower surface of the threaded cylinder is fixedly connected to a adapter, the adapter is rotatably matched with the push plate, and the threaded cylinder passes through the mounting flange and is threadedly matched.

[0011] Preferably, a snap-in ring is protruding from the outer surface of the connecting ring, and the snap-in ring is slidably fitted with the inner wall of the chassis.

[0012] Preferably, the outer surface of the outer cylinder is fixedly connected with a spiral sheet, the outer edge of the chassis is fixedly provided with an outer ring gear, and the inner edge of the chassis is fixedly provided with an inner ring gear.

[0013] Preferably, a sliding groove is provided on the inner wall of the chassis, and the split plate is slidably inserted into the inner side of the sliding groove. A convex groove is provided on the inner bottom surface of the sliding groove, and a convex block is fixedly connected to the lower surface of the split plate. The convex block slides in cooperation with the convex groove. A movable groove is provided on the inner bottom surface of the convex groove, and the locking mechanism is snapped into the movable groove. A spiral groove is commonly provided on the upper surfaces of several split plates, and a spiral pattern is fixedly connected to the lower surface of the connecting ring, and the spiral pattern is movably snapped into the spiral groove.

[0014] Preferably, the locking mechanism includes a limiting block that slides into the inner side of the movable groove, a tension spring fixedly connected between the lower surface of the limiting block and the bottom surface of the movable groove, an insert block fixedly connected to the lower surface of the limiting block, the insert block slides through the lower surface of the chassis, a cutting head is provided at the lower end of the insert block, a scraping block is fixedly connected to the side of the lower surface of the chassis close to the cutting head, and the distances between the several insert blocks and the central axis of the chassis are different.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This solution can seal the lower end port after sampling to the cushion layer to prevent the loose cushion layer from scattering when it is taken out, which is conducive to complete sampling.

[0017] 2. First, when they are on the ground, the inner cylinder and the outer cylinder are rotated relative to each other, so that the spiral pattern and the spiral groove are matched, and several split plates are moved away from each other, that is, the lower end of the chassis is in the open state. After that, the telescopic cylinder is controlled to extend, and at the same time, the motor drives the inner cylinder to rotate. Since the entire chassis is pressed on the ground, the lower end of the angle cutting head is squeezed, that is, the limiting block moves upward in the movable groove, and the convex block is stuck near the upper end of the convex groove, which prevents the split plate from sliding down. With the assistance of the outer ring teeth and the inner ring teeth, drilling is carried out. At the same time, the spiral piece squeezes out the surrounding area at any time to ensure the drilling of the outer cylinder. During the rotation process, for the adjacent plug block and scraper block, the scraper block is always located behind the movement trajectory of the plug block. Therefore, the plug block can always remain in a state of being pushed upward during the downward movement, that is, the split plate will not move downward during this process, thereby ensuring the sampling.

[0018] 3. After drilling to the required depth, the telescopic cylinder stops running, and the chassis rotates at a certain height. The scraper block will move multiple times in a circular trajectory, scraping the soil on the circle and leaving space. At this time, under the action of the tension spring, the plug block that is no longer pushed upward will move downward, and the limiting block is hidden in the movable groove and no longer supports the convex block. At this time, the inner cylinder and the outer cylinder will no longer rotate synchronously. The chassis is relatively still due to the friction in the soil, and the inner cylinder and the connecting ring rotate relative to each other. The spiral pattern rotates in the spiral groove, causing the sub-plate to slide down, and several sub-plates move closer to each other until the lower end of the chassis is blocked. Then the inner cylinder and the outer cylinder move synchronously again. Therefore, after sampling the cushion layer, the lower end port can be sealed to prevent the loosening or falling out of the bottom cushion sample, thereby improving the integrity of the sampling.

[0019] 4. After taking out the inner and outer cylinders, when taking out the sample, if it is difficult to pour it out, remove the inner cylinder from the motor, rotate the threaded cylinder to move it down into the outer cylinder, and then use a rod-shaped tool to push the push plate down to take out the sample. It is more convenient and the sampling process is convenient. After inverting the inner cylinder, rotate the edge of the threaded cylinder and it can be screwed onto the mounting flange again. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a road quality detection device according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the outer cylinder and inner cylinder of a road quality detection device of the present invention;

[0022] Figure 3 This is a cross-sectional view of the chassis of a road quality detection device according to the present invention;

[0023] Figure 4 A road quality detection device of the present invention Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the chassis of a road quality detection device according to the present invention;

[0025] Figure 6 This is a schematic diagram of a road quality detection device according to the present invention;

[0026] Figure 7 This is a schematic diagram of a connecting ring of a road quality detection device according to the present invention;

[0027] Figure 8 This is a cross-sectional view of the mounting flange of a road quality detection device according to the present invention;

[0028] Figure 9 This is a partial structural diagram of a road quality detection device according to the present invention;

[0029] Figure 10 This is a schematic diagram of the rotation of a road quality detection device during drilling.

[0030] 1. Base; 2. Slant frame; 3. Top plate; 4. Inner tube; 5. Outer tube; 6. Chassis; 7. Spiral plate; 8. Connecting ring; 9. Snap ring; 10. Slide groove; 11. Divider plate; 12. Spiral groove; 13. Spiral pattern; 14. Convex groove; 15. Movable groove; 16. Convex block; 17. Limit block; 18. Tension spring; 19. Insert block; 20. Angle cutting head; 21. Scraper block; 22. Outer ring gear; 23. Inner ring gear; 24. Push plate; 25. Adapter; 26. Threaded tube; 27. Mounting flange; 28. Mounting seat; 29. ​​Motor; 30. Lifting plate; 33. Telescopic cylinder; 34. Guide rod; 35. Stabilizing plate. DETAILED DESCRIPTION

[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0032] like Figures 1-10 The road quality inspection device shown in the figure includes a base 1. A motor 29 is mounted on the upper surface of the base 1 via a lifting mechanism. The output shaft of the motor 29 is connected to an inner cylinder 4 via a detachable mechanism. The lower end of the inner cylinder 4 is fixedly connected to a connecting ring 8. An outer cylinder 5 is sleeved on the outer side of the inner cylinder 4. The lower end of the outer cylinder 5 is fixedly connected to a chassis 6. The inner wall of the chassis 6 is obliquely inserted with equidistantly arranged split plates 11. The connecting ring 8 rotates with the inner wall of the chassis 6, and the lower surface of the connecting ring 8 meshes with each split plate 11.

[0033] When the connecting ring 8 rotates, the plurality of split plates 11 move closer to or away from each other, and the split plates 11 block the inner wall of the chassis 6 when they move closer to each other;

[0034] A locking mechanism is inserted into the lower surface of the chassis 6 , and the locking mechanism clamps the split plate 11 when pushed upward.

[0035] This solution can seal the lower end port after sampling the cushion layer to prevent the loose cushion layer from scattering when it is taken out, which is conducive to complete sampling.

[0036] like Figure 1 and Figure 9 As shown, the lifting mechanism includes an inclined frame 2 fixedly mounted on the upper surface of the base 1, a top plate 3 fixedly mounted on the upper end of the inclined frame 2, a telescopic cylinder 33 fixedly mounted on the lower surface of the top plate 3, and a lifting plate 30 fixedly mounted on the telescopic end of the telescopic cylinder 33. The side of the lifting plate 30 is fixedly mounted on the motor 29. The telescopic cylinder 33 is a hydraulic cylinder, which can smoothly move the lifting plate 30 up and down.

[0037] The upper surface of the lifting plate 30 is fixedly connected to a guide rod 34, which slides through the upper surface of the top plate 3, and the upper ends of several guide rods 34 are fixedly connected to a stabilizing plate 35. The guide rod 34 and the stabilizing plate 35 ensure the stability of the lifting plate 30 when moving up and down.

[0038] like Figure 8 As shown, the detachable mechanism includes a mounting base 28 fixedly connected to the output shaft of the motor 29, a mounting flange 27 is fixedly provided on the upper end of the inner cylinder 4, the mounting base 28 is fixedly connected to the mounting flange 27, and is fixedly installed in a common bolting manner, and the inner top surface of the inner cylinder 4 is provided with an ejection mechanism, which includes a push plate 24 slidably arranged on the inner side of the inner cylinder 4, a threaded barrel 26 is provided on the upper surface of the push plate 24, and an adapter 25 is fixedly connected to the lower surface of the threaded barrel 26, the adapter 25 is rotatably matched with the push plate 24, and the threaded barrel 26 passes through the mounting flange 27 and is threadedly matched.

[0039] like Figure 3 and Figure 4 As shown, a snap-in ring 9 is protruded from the outer surface of the connecting ring 8 , and the snap-in ring 9 is in sliding fit with the inner wall of the chassis 6 .

[0040] like Figure 5 and Figure 9 As shown, the outer surface of the outer cylinder 5 is fixedly connected with a spiral sheet 7, the outer edge of the chassis 6 is fixedly provided with an outer ring gear 22, and the inner edge of the chassis 6 is fixedly provided with an inner ring gear 23. The outer ring gear 22 and the inner ring gear 23 are used to assist in drilling.

[0041] like Figure 2 、 Figure 3 and Figure 4As shown, a slide groove 10 is provided on the inner wall of the chassis 6, and the partition plate 11 is slidably inserted into the inner side of the slide groove 10. A convex groove 14 is provided on the inner bottom surface of the slide groove 10. A convex block 16 is fixedly connected to the lower surface of the partition plate 11. The convex block 16 slides with the convex groove 14. A movable groove 15 is provided on the inner bottom surface of the convex groove 14. The locking mechanism is snapped into the movable groove 15. A spiral groove 12 is commonly provided on the upper surfaces of several partition plates 11. A spiral pattern 13 is fixedly connected to the lower surface of the connecting ring 8. The spiral pattern 13 is movably snapped into the spiral groove 12, and the spiral pattern 13 rotates in accordance with the inner side of the spiral groove 12.

[0042] like Figure 3 、 Figure 4 、 Figure 5 As shown, the locking mechanism includes a limiting block 17 that slides into the inner side of the movable groove 15, a tension spring 18 fixedly connected between the lower surface of the limiting block 17 and the inner bottom surface of the movable groove 15, and an insert block 19 fixedly connected to the lower surface of the limiting block 17. The insert block 19 slides through the lower surface of the chassis 6. The lower end of the insert block 19 is provided with a cutting head 20. A scraper block 21 is fixedly connected to the side of the lower surface of the chassis 6 near the cutting head 20. Figure 10 As shown, the distances between the plurality of insert blocks 19 and the central axis of the chassis 6 are different, so as to ensure that when rotating, the scraper block 21 at a distance will not sweep over the position where the insert block 19 is to pass, and to ensure that the insert block 19 is always pushed up when drilling. Figure 10 The middle is the rotation direction when drilling, which ensures that the scraper block 21 is located behind the track passed by the insert block 19 when rotating.

[0043] During the test, first, when the inner tube 4 and the outer tube 5 are in the ground position, the inner tube 4 and the outer tube 5 are rotated relative to each other, so that the spiral pattern 13 and the spiral groove 12 are matched, and the plurality of split plates 11 are separated from each other, that is, the lower end of the chassis 6 is opened. After that, the telescopic cylinder 33 is controlled to extend, and at the same time, the motor 29 drives the inner tube 4 to rotate. Since the entire chassis 6 is pressed against the ground, the lower end of the angle cutting head 20 is squeezed, that is, the limiting block 17 moves up in the movable groove 15, and the convex block 16 is stuck near the convex block 16. The upper end of the groove 14 prevents the dividing plate 11 from sliding down. With the assistance of the outer ring teeth 22 and the inner ring teeth 23, drilling is carried out. At the same time, the spiral piece 7 squeezes out the surrounding at any time to ensure the drilling of the outer cylinder 5. During the rotation process, for the adjacent plug block 19 and scraper block 21, the scraper block 21 is always located behind the movement trajectory of the plug block 19. Therefore, the plug block 19 can always remain in a state of being pushed upward during the downward movement, that is, the dividing plate 11 will not move downward during this process, ensuring the sampling. After drilling to the required depth, the telescopic cylinder 33 stops running, the chassis 6 rotates at a certain height, and the scraper block 21 moves several times in a circular trajectory, scraping the soil on the circle and leaving space. At this time, under the action of the tension spring 18, the plug block 19, which is no longer pushed upward, will move down, and the limiting block 17 is hidden in the movable groove 15 and no longer against the convex block 16. At this time, the inner cylinder 4 and the outer cylinder 5 will no longer rotate synchronously. The chassis 6 is relatively stationary due to the friction in the soil. The inner cylinder 4 and the connecting ring 8 rotate relative to each other, and the spiral pattern 13 rotates through the spiral groove 12, causing the dividing plate 11 to slide down. Several dividing plates 11 move closer to each other until the lower end of the chassis 6 is blocked, and the inner cylinder 4 and the outer cylinder 5 move synchronously again. Therefore, after sampling the cushion layer, the lower end port can be sealed to prevent the loosening or falling of the bottom cushion sample, thereby improving the integrity of the sampling. After taking out the inner cylinder 4 and the outer cylinder 5, when taking out the sample, if it is difficult to pour it out, after removing the inner cylinder 4 from the motor 29, rotate the threaded cylinder 26 to move it down into the outer cylinder 5, and then use the rod-shaped tool to push the push plate 24 down to take out the sample. It is more convenient and the sampling process is convenient. After inverting the inner cylinder 4, rotate the edge of the threaded cylinder 26 to screw it into the mounting flange 27 again.

[0044] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A road quality detection device, comprising a base (1), characterized in that: A motor (29) is installed on the upper surface of the base (1) through a lifting mechanism, the output shaft of the motor (29) is connected to the inner cylinder (4) through a detachable mechanism, the lower end of the inner cylinder (4) is fixedly connected to a connecting ring (8), the outer side of the inner cylinder (4) is sleeved with an outer cylinder (5), the lower end of the outer cylinder (5) is fixedly connected to a chassis (6), and the inner wall of the chassis (6) is obliquely inserted with equidistant array-arranged dividing plates (11), the connecting ring (8) is rotatably matched with the inner wall of the chassis (6), and the lower surface of the connecting ring (8) is meshed with each dividing plate (11); When the connecting ring (8) rotates, the plurality of split plates (11) move closer to or farther from each other, and the split plates (11) block the inner wall of the chassis (6) when they move closer to each other; A locking mechanism is inserted into the lower surface of the chassis (6), and the locking mechanism is locked to the partition plate (11) when pushed upward; A snap ring (9) is protruding from the outer surface of the connecting ring (8), and the snap ring (9) is slidably engaged with the inner wall of the chassis (6); The outer surface of the outer cylinder (5) is fixedly connected to a spiral sheet (7), the outer edge of the chassis (6) is fixedly provided with an outer ring gear (22), and the inner edge of the chassis (6) is fixedly provided with an inner ring gear (23); A sliding groove (10) is provided on the inner wall of the chassis (6), and the dividing plate (11) is slidably inserted into the inner side of the sliding groove (10). A convex groove (14) is provided on the inner bottom surface of the sliding groove (10). A convex block (16) is fixedly connected to the lower surface of the dividing plate (11), and the convex block (16) slides with the convex groove (14). A movable groove (15) is provided on the inner bottom surface of the convex groove (14), and a locking mechanism is snapped into the movable groove (15). A spiral groove (12) is commonly provided on the upper surfaces of several dividing plates (11), and a spiral pattern (13) is fixedly connected to the lower surface of the connecting ring (8), and the spiral pattern (13) is snapped into the spiral groove (12). The locking mechanism comprises a limiting block (17) that slides into the inner side of the movable groove (15), a tension spring (18) fixedly connected between the lower surface of the limiting block (17) and the inner bottom surface of the movable groove (15), an insert block (19) fixedly connected to the lower surface of the limiting block (17), the insert block (19) slides through the lower surface of the chassis (6), a cutting head (20) is provided at the lower end of the insert block (19), a scraping block (21) is fixedly connected to the side of the lower surface of the chassis (6) close to the cutting head (20), and the distances between the plurality of insert blocks (19) and the central axis of the chassis (6) are different.

2. A road quality detection device according to claim 1, characterized in that: The lifting mechanism comprises an inclined frame (2) fixedly mounted on the upper surface of the base (1), a top plate (3) fixedly mounted on the upper end of the inclined frame (2), a telescopic cylinder (33) fixedly mounted on the lower surface of the top plate (3), and a lifting plate (30) fixedly mounted on the telescopic end of the telescopic cylinder (33), wherein the side surface of the lifting plate (30) is fixedly mounted to the motor (29).

3. A road quality detection device according to claim 2, characterized in that: The upper surface of the lifting plate (30) is fixedly connected to a guide rod (34), the guide rod (34) slides through the upper surface of the top plate (3), and the upper ends of several guide rods (34) are commonly fixedly connected to a stabilizing plate (35).

4. A road quality detection device according to claim 1, characterized in that: The detachable mechanism includes a mounting seat (28) fixedly connected to the output shaft of the motor (29), a mounting flange (27) is fixedly provided at the upper end of the inner cylinder (4), the mounting seat (28) is fixedly connected to the mounting flange (27), and an ejection mechanism is provided on the inner top surface of the inner cylinder (4).

5. A road quality detection device according to claim 4, characterized in that: The ejection mechanism comprises a push plate (24) slidably arranged inside the inner cylinder (4), a threaded cylinder (26) being provided on the upper surface of the push plate (24), an adapter (25) being fixedly connected to the lower surface of the threaded cylinder (26), the adapter (25) being rotatably engaged with the push plate (24), and the threaded cylinder (26) passing through the mounting flange (27) and being threadably engaged with each other.

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