Roadbed compactness detection device and method

Abstract

The invention relates to the technical field of roadbed detection, in particular to a roadbed compactness detection device and method.The roadbed compactness detection device comprises a base, and a lifting plate is arranged on the upper side of the base; the device is further provided with a soil taking mechanism used for taking soil from a roadbed, the soil taking mechanism comprises first hydraulic cylinders fixedly installed on the left side and the right side of the lifting plate, inclined cutting plates are fixedly installed at the lower ends of the first hydraulic cylinders, second hydraulic cylinders are fixedly installed on the front side and the rear side of the lifting plate, and vertical cutting plates are fixedly installed at the lower ends of the second hydraulic cylinders. When roadbed soil is brought out by inclined cutting plates on the two sides and vertical cutting plates on the two sides, a worker pushes a cleaning strip to slide downwards firstly, redundant soil adhering to the outer portions of the inclined cutting plates on the two sides and the outer portions of the vertical cutting plates on the two sides can be cleared away, and the situation that when soil in the area defined by the inclined cutting plates on the two sides and the vertical cutting plates on the two sides is collected, the soil in the area defined by the inclined cutting plates on the two sides and the vertical cutting plates on the two sides is damaged is prevented. And soil adhered to the outer sides of the inclined cutting plates on the two sides and the vertical cutting plates on the two sides falls into a collecting box.

Description

Technical Field

[0001] The present invention relates to the technical field of roadbed detection, and in particular to a roadbed compaction detection device and method. Background Art

[0002] The roadbed is the foundation for a track or road surface, a geotechnical structure formed through excavation or fill. Its primary function is to provide the necessary conditions for track or road construction and train or vehicle operation. It withstands the static and dynamic loads of the track and rolling stock, or the road surface and traffic, while also transmitting and distributing these loads deep into the ground. In longitudinal section, the roadbed must maintain the required elevation of the line. In plan, the roadbed connects with bridges and tunnels to form a complete, continuous line. In civil engineering, the roadbed plays a crucial role in terms of construction volume, floor space, and investment.

[0003] After searching, the patent with application number CN202011452001.1 discloses "a fine-grained soil and large-thickness roadbed compaction detection device and detection method", including a main support, an upper counterweight block, a lower counterweight block, a soil sampling sleeve, two combined ring cutters and four knocking blocks. The main support includes a top plate, a bottom plate, four angle iron columns, four rings and four telescopic columns.

[0004] However, in the above patent, the lower end of the soil-extracting sleeve 12 is open during use. When soil excavation is completed, the soil in the soil-extracting sleeve 12 is easily dropped from the lower end opening during the rising process of the soil-extracting sleeve 12, thereby affecting the accuracy of subsequent roadbed compaction detection. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the lower end of the soil-taking sleeve 12 in the prior art is open. When the soil is taken, the soil in the soil-taking sleeve 12 is easily dropped from the lower end opening during the rising process, thereby causing the accuracy of subsequent roadbed compaction detection. A roadbed compaction detection device and method are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A roadbed compaction detection device comprises a base, wherein a lifting plate is provided on the upper side of the base;

[0008] A soil taking mechanism for taking soil from the roadbed is also provided, the soil taking mechanism comprising a hydraulic cylinder 1 fixedly mounted on the left and right sides of the lifting plate, a bevel plate fixedly mounted on each lower end of the hydraulic cylinder, a hydraulic cylinder 2 fixedly mounted on both the front and rear sides of the lifting plate, a vertical cutting plate fixedly mounted on each lower end of the hydraulic cylinder 2, the hydraulic cylinder 1 and the bevel plate being obliquely symmetrically arranged in an "eight" shape, the hydraulic cylinder 2 and the vertical cutting plate being symmetrically arranged vertically, and the ends of the two vertical cutting plates close to each other are on the same horizontal line as the front and rear ends of the bevel cutting plate;

[0009] A cleaning mechanism is also provided for cleaning dirt adhered to the bevel cutting plates and the vertical cutting plates. The cleaning mechanism includes a first cleaning bar slidably mounted on the ends of the two bevel cutting plates away from each other and the ends of the two vertical cutting plates away from each other, and a second cleaning bar slidably mounted on the ends of the two bevel cutting plates close to each other and the ends of the two vertical cutting plates close to each other.

[0010] A lifting mechanism is also provided for moving or working the device, and the lifting mechanism comprises four universal wheels fixedly mounted at the four corners of the lower end of the base.

[0011] Preferably, a screw rod is threadedly installed on the left side of the lifting plate, a motor is provided at the lower end of the screw rod, and the lower end of the motor is fixedly installed on the base; a slide rod is slidably installed on the right side of the lifting plate, and the lower end of the slide rod is fixedly installed on the base.

[0012] Preferably, the lower sides of the ends of the vertical cutting plates on both sides that are close to each other are symmetrically and slidingly installed with fixed blocks, and the ends of the fixed blocks that are away from each other are fixedly installed with inclined blocks, which are slidingly connected to the inside of the vertical cutting plates.

[0013] Preferably, spring one is fixedly installed on the corresponding oblique blocks on the inner wall of the vertical cutting plate, and the other end of spring one is fixedly installed on the oblique block. A top bar is provided on the upper end of the oblique block, and a hydraulic cylinder three is fixedly installed on the upper end of the top bar. Hydraulic cylinder three is fixedly connected to the upper end of the vertical cutting plate.

[0014] Preferably, the corresponding fixing blocks on the lower sides of the front and rear ends of the bevel plates on both sides are provided with fixing holes, and spring 2 is fixedly installed in the fixing holes, and a stop block is fixedly installed at the other end of spring 2, and the outer end surface of the stop block is maintained on the same horizontal line as the front and rear ends of the bevel plates.

[0015] Preferably, the corresponding cleaning strips 1 and 2 on the upper ends of the bevel cutting plates on both sides and the vertical cutting plates on both sides are fixedly installed with magnetic strips, and the cleaning strips 1 and 2 are both made of iron, and the upper ends of the cleaning strips 1 and 2 are both in contact with and magnetically adsorbed on the magnetic strips.

[0016] Preferably, the lower ends of the two cleaning strips are both abutted and fitted with connecting strips, the ends of the two cleaning strips close to each other are fixedly installed with support blocks, the upper ends of the connecting strips are fixedly installed with plug blocks, the upper ends of the plug blocks are slidably installed on the support blocks, and the upper ends of the support blocks are slidably installed with limit blocks corresponding to the plug blocks, and the limit blocks are slidably installed on the plug blocks.

[0017] Preferably, the ends of the limit blocks that are away from each other are fixedly mounted with springs three, and the ends of the springs three that are away from each other are fixedly mounted on the support blocks.

[0018] Preferably, a support plate is provided on the lower side of the base, and guide rods are fixedly installed at the triangular parts of the upper end of the support plate. The upper end of the guide rod is slidably installed on the base, and screw rod 2 is rotatably installed at one corner of the upper end of the support plate, and screw rod 2 is threadedly installed on the base.

[0019] A method for using a roadbed compaction detection device, the specific steps are as follows:

[0020] Step 1: Lift the device off the ground through the lifting mechanism, and insert the bevel cutting plate and the vertical cutting plate under the roadbed to be inspected through the hydraulic cylinder 1 and the hydraulic cylinder 2 respectively to form an enclosed area;

[0021] Step 2: Insert the fixing block into the fixing hole and start the motor to drive the soil in the entire enclosed area to rise to the upper side of the base;

[0022] Step 3: Use a pair of cleaning strips to clean excess soil from the outer sides of the bevel-cut and vertical-cut boards;

[0023] Step 4: Open the enclosed area and let the soil in the enclosed area fall into the collection box on the lower side. Use the cleaning strip 2 to clean the soil adhering to the inner walls of the oblique cutting plate and the vertical cutting plate in the enclosed area and weigh them uniformly.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, the universal wheel is used to push the device to the roadbed in the working area, and the second screw is rotated to drive the support plate and the guide rod to descend, so as to lift the device off the ground, which is beneficial to ensure that the device will not move when taking soil, thereby ensuring the stability of soil taking.

[0026] 2. In the present invention, the hydraulic cylinders on both sides are started to push the bevel plates on both sides down, and the bevel plates on both sides will gradually be inserted into the roadbed soil. When the lower ends of the bevel plates on both sides are abutted, the hydraulic cylinders on both sides stop working, and then the hydraulic cylinders on both sides are started to push the vertical cutting plates on both sides down and extend into the roadbed soil below. The vertical cutting plates will descend along the front and rear end surfaces of the bevel plates until the lower ends of the vertical cutting plates are in the same horizontal line and stop. At this time, the bevel plates on both sides and the vertical cutting plates on both sides will enclose and form a closed space except for the upper end. In the closed area, the base is equipped with a built-in counterweight, which is sufficient to support the downward pressure of hydraulic cylinder 1 and hydraulic cylinder 2, and the device will not be jacked up. Then the motor is started to drive screw 1 to rotate, and screw 1 drives the lifting plate to rise. The lifting plate drives hydraulic cylinder 2 and vertical cutting plates on both sides, and hydraulic cylinder 1 and oblique cutting plates on both sides to rise, so as to facilitate the removal of soil under the roadbed. Since the lower end and all sides of the closed area are closed areas, soil will not fall from the hollow area below, thereby ensuring the accuracy of subsequent roadbed compaction detection.

[0027] 3. In the present invention, when the vertical cutting plate extends into the ground soil and completes the encirclement with the oblique cutting plate, the fixed block is just on the same horizontal axis as the fixing hole, and the hydraulic cylinder three is started to drive the top bar to descend. The top bar pushes the oblique block to drive the fixed block to extend out of the vertical cutting plate, compresses the spring one, and the fixed block pushes the stopper to slide into the fixing hole, compresses the spring two, and inserts the fixed block into the fixing hole. This is conducive to improving the stability of the connection between the oblique cutting plates on both sides and the vertical cutting plates on both sides, so that when the oblique cutting plates on both sides and the vertical cutting plates on both sides rise and carry out the roadbed soil, there will be no gaps or looseness between the oblique cutting plates on both sides and the vertical cutting plates on both sides, which will cause the soil in the encircled area of the oblique cutting plates and the vertical cutting plates on both sides to fall, thereby improving the accuracy of subsequent roadbed compaction detection.

[0028] 4. In the present invention, the second spring and the stopper are provided to prevent excess soil from entering the fixing hole when the bevel plate descends and extends into the roadbed soil, thereby preventing the fixing hole from being blocked.

[0029] 5. In the present invention, when the oblique cutting plates on both sides and the vertical cutting plates on both sides bring out the roadbed soil, the staff first pushes the cleaning bar to slide downward, which is conducive to cleaning up the excess soil adhering to the outside of the oblique cutting plates on both sides and the vertical cutting plates on both sides, and preventing the soil adhering to the outside of the oblique cutting plates on both sides and the vertical cutting plates on both sides from falling into the collection box when collecting the soil in the area enclosed by the oblique cutting plates on both sides and the vertical cutting plates on both sides.

[0030] 6. In the present invention, the staff places the collecting box just below the bevel cutting plates and the vertical cutting plates on both sides, then starts the hydraulic cylinder three to drive the top bar to rise, the spring one drives the bevel block and the fixed block to reset, and sequentially starts the hydraulic cylinder one and the hydraulic cylinder two on both sides to respectively drive the bevel cutting plates and the vertical cutting plates on both sides to rise. At this time, the area enclosed by the bevel cutting plates and the vertical cutting plates on both sides will disappear, and the soil in the enclosed area will fall into the collecting box on the lower side. Then push the cleaning strip two to drive the connecting strip to slide downward, which is conducive to scraping the soil adhering to the inner walls of the bevel cutting plates and the vertical cutting plates on both sides into the collecting box on the lower side, thereby improving the collection efficiency and quality of the soil in the area enclosed by the bevel cutting plates and the vertical cutting plates on both sides.

[0031] 7. In the present invention, the limit block is pushed to separate it from the insert block, and the third spring is compressed to directly remove the connecting bar and the insert block from the support block. The staff only needs to put the soil adhering to the connecting bar together with the weight of the connecting bar itself into the collection box. After measuring the mass, the weight of the four connecting bars themselves is subtracted to obtain the total mass of the tested and collected soil. The test results are fast, efficient, accurate and have low error. The disassembled connecting bar can be reinstalled with a new connecting bar, and the soil extraction operation of the roadbed soil in the new area can be continued without delaying the efficiency of soil extraction, and the soil extraction efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall right-side three-dimensional structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above;

[0035] Figure 4 Schematic diagram of the cross-sectional structure of the right beveled plate of the present invention;

[0036] Figure 5 This is a schematic cross-sectional view of the right vertical cutting plate of the present invention;

[0037] Figure 6 For the present invention Figure 1 A partially enlarged structural diagram of the connection between the middle hydraulic cylinder 1 and the bevel plate;

[0038] Figure 7 For the present invention Figure 2 A partially enlarged structural diagram of the connection between the middle vertical cutting plate and the second hydraulic cylinder;

[0039] Figure 8 For the present invention Figure 5 A partially enlarged structural diagram of the connection between the middle hydraulic cylinder 2 and the vertical cutting plate;

[0040] Figure 9 For the present invention Figure 4 A partially enlarged structural diagram of a mid-bevel cut plate;

[0041] Figure 10 For the present invention Figure 6 Schematic diagram of the structure at A in the middle;

[0042] Figure 11 For the present invention Figure 8 Schematic diagram of the structure at B in the middle;

[0043] Figure 12 For the present invention Figure 8 Schematic diagram of the structure at C in the middle;

[0044] In the figure: 1. Base; 2. Lifting plate;

[0045] Soil extraction mechanism: 3. Hydraulic cylinder 1; 4. Bevel cutting plate; 5. Hydraulic cylinder 2; 6. Vertical cutting plate; 7. Screw 1; 8. Motor; 9. Slide rod; 10. Fixed block; 11. Bevel block; 12. Spring 1; 13. Top bar; 14. Hydraulic cylinder 3; 15. Fixed hole; 16. Stop block; 17. Spring 2.

[0046] Cleaning mechanism: 18, cleaning strip 1; 19, cleaning strip 2; 20, magnetic strip; 21, connecting strip; 22, supporting block; 23, insert block; 24, limit block; 25, spring 3;

[0047] Lifting mechanism: 26, universal wheel; 27, support plate; 28, guide rod; 29, screw rod 2. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0050] Reference Figures 1-12, a roadbed compaction detection device includes a base 1, a lifting plate 2 is provided on the upper side of the base 1; a soil taking mechanism for taking soil from the roadbed is also provided, and the soil taking mechanism includes a hydraulic cylinder 1 3 fixedly installed on the left and right sides of the lifting plate 2, and a bevel plate 4 is fixedly installed on the lower end of the hydraulic cylinder 1 3. A hydraulic cylinder 2 5 is fixedly installed on the front and rear sides of the lifting plate 2, and a vertical cutting plate 6 is fixedly installed on the lower end of the hydraulic cylinder 2 5. The hydraulic cylinder 1 3 and the bevel plate 4 are symmetrically arranged in an "eight" shape, and the hydraulic cylinder 2 5 and the vertical cutting plate 6 are symmetrically arranged vertically, and the ends of the two vertical cutting plates 6 close to each other are on the same horizontal line as the front and rear ends of the bevel plate 4. A screw rod 7 is threadedly installed on the left side of the lifting plate 2, and a motor 8 is provided at the lower end of the screw rod 7. The lower end of the motor 8 is fixedly installed on the base 1, and a slide rod 9 is slidably installed on the right side of the lifting plate 2. The lower end of the slide rod 9 is fixed The cam 14 is fixed to the upper end of the vertical cutting plate 6, and the cam 14 is fixed to the lower end of the vertical cutting plate 6. The cam 14 is fixed to the lower end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6. The cam 14 is fixed to the upper end of the vertical cutting plate 6.

[0051] When working, start the hydraulic cylinders 1 3 on both sides to push the bevel plates 4 on both sides to descend, and the bevel plates 4 on both sides will gradually insert into the roadbed soil. When the lower ends of the bevel plates 4 on both sides are in contact, the hydraulic cylinders 1 3 on both sides stop working, and then start the hydraulic cylinders 2 5 to push the vertical cutting plates 6 on both sides to descend and extend into the roadbed soil below. The vertical cutting plates 6 will descend along the front and rear end surfaces of the bevel plates 4 until the lower ends of the vertical cutting plates 6 and the lower ends of the bevel plates 4 are kept at the same horizontal line and stop. At this time, the bevel plates 4 on both sides and the vertical cutting plates 6 on both sides will enclose and form a closed area except for the upper end. The base 1 has a built-in counterweight block, which is sufficient to support the downward pressure of the hydraulic cylinders 1 3 and 2 5, and the device will not be lifted up. Then start the motor 8 to drive the screw 1 7 to rotate, and the screw The lifting plate 2 is driven by the hydraulic cylinder 2 5 and the vertical cutting plate 6 on both sides, and the hydraulic cylinder 1 3 and the bevel cutting plate 4 on both sides are driven up, so as to bring out the soil under the roadbed. Since the lower end and the surrounding areas of the closed area are closed areas, the soil will not fall from the hollow area below, thereby ensuring the accuracy of the subsequent roadbed compaction test. When the vertical cutting plate 6 is extended into the ground soil and the bevel cutting plate 4 is completed, the fixed block 10 is just on the same horizontal axis as the fixed hole 15. The hydraulic cylinder 3 14 is started to drive the top bar 13 to descend. The top bar 13 pushes the bevel block 11 to drive the fixed block 10 to extend from the vertical cutting plate 6, compressing the spring 12. The fixed block 10 will push the stopper 16 to slide into the fixed hole 15, compressing the spring 2 17. The fixing blocks 10 are inserted into the fixing holes 15, which is conducive to improving the stability of the connection between the bevel plates 4 on both sides and the vertical cutting plates 6 on both sides, so that when the bevel plates 4 on both sides and the vertical cutting plates 6 on both sides are lifted up to bring out the roadbed soil, there will be no gaps or looseness between the bevel plates 4 on both sides and the vertical cutting plates 6 on both sides, which will cause the soil in the area enclosed by the bevel plates 4 on both sides and the vertical cutting plates 6 on both sides to fall, thereby improving the accuracy of subsequent roadbed compaction detection. The spring 2 17 and the stopper 16 are convenient for preventing excess soil from entering the fixing holes 15 when the bevel plates 4 are lowered and extended into the roadbed soil, causing the fixing holes 15 to be blocked. When the bevel plates 4 on both sides and the vertical cutting plates 6 on both sides bring out the roadbed soil, the staff first push The movable cleaning bar 18 slides downward, which is conducive to cleaning up the excess mud adhered to the outside of the bevel cutting plates 4 and the vertical cutting plates 6 on both sides, and prevents the mud adhered to the outside of the bevel cutting plates 4 and the vertical cutting plates 6 on both sides from falling into the collection box when collecting the soil in the area enclosed by the bevel cutting plates 4 and the vertical cutting plates 6 on both sides. After the outside is cleaned, the staff puts the collection box just below the bevel cutting plates 4 and the vertical cutting plates 6 on both sides, and then starts the hydraulic cylinder 3 14 to drive the top bar 13 to rise, and the spring 12 drives the inclined block 11 and the fixed block 10 to reset, and starts the hydraulic cylinder 1 3 and the hydraulic cylinder 2 5 on both sides in turn to drive the bevel cutting plates 4 and the vertical cutting plates 6 on both sides to rise respectively. At this time, the area enclosed by the bevel cutting plates 4 and the vertical cutting plates 6 on both sides will disappear.The soil in the enclosed area will fall into the collection box at the bottom.

[0052] As an embodiment of the present invention, a cleaning mechanism is further provided for cleaning the dirt adhered to the bevel cutting plate 4 and the vertical cutting plate 6, the cleaning mechanism includes cleaning bars 18 slidably mounted on the ends of the two bevel cutting plates 4 away from each other and the ends of the two vertical cutting plates 6 away from each other, cleaning bars 19 are slidably mounted on the ends of the two bevel cutting plates 4 close to each other and the ends of the two vertical cutting plates 6 close to each other, and magnetic strips 20 are fixedly mounted on the corresponding cleaning bars 18 and cleaning bars 19 on one side of the upper ends of the bevel cutting plates 4 on both sides and the vertical cutting plates 6 on both sides, and the cleaning bars 18 and cleaning bars 19 are both made of iron. The upper ends of the cleaning strips 19 are all in contact with each other and are magnetically adsorbed on the magnetic strip 20. The lower ends of the cleaning strips 19 are all in contact with each other and are provided with connecting strips 21. The ends of the cleaning strips 19 that are close to each other are fixedly installed with support blocks 22. The upper ends of the connecting strips 21 are fixedly installed with plug blocks 23. The upper ends of the plug blocks 23 are all slidably installed on the support blocks 22. The upper ends of the support blocks 22 and the corresponding plug blocks 23 are slidably installed with limit blocks 24. The limit blocks 24 are slidably installed on the plug blocks 23. The ends of the limit blocks 24 that are away from each other are fixedly installed with springs three 25. The ends of the springs three 25 that are away from each other are fixedly installed on the support blocks 22.

[0053] When working, pushing the cleaning bar 21 to drive the connecting bar 21 to slide downward is conducive to scraping the soil adhered to the inner walls of the oblique cutting plates 4 on both sides and the vertical cutting plates 6 on both sides into the collecting box on the lower side, thereby improving the collection efficiency and quality of the soil in the area surrounded by the oblique cutting plates 4 and the vertical cutting plates 6 on both sides. Pushing the limit block 24 to separate it from the insert block 23 and compressing the spring 3 25 can directly remove the connecting bar 21 and the insert block 23 from the supporting block 22. The staff only needs to put the soil adhered to the connecting bar 21 together with the weight of the connecting bar 21 itself into the collecting box. After measuring the mass, subtracting the weight of the four connecting bars 21 themselves can obtain the total mass of the detected and collected soil. The test result is fast, efficient, accurate and has low error. The disassembled connecting bar 21 can be reinstalled with a new connecting bar 21, and the roadbed soil in the new area can be continued to be taken without delaying the efficiency of soil taking, and the soil taking efficiency is high.

[0054] As an embodiment of the present invention, a lifting mechanism for moving or working the device is further provided, the lifting mechanism comprising four universal wheels 26 fixedly mounted at the four corners of the lower end of the base 1, a support plate 27 is provided on the lower side of the base 1, a guide rod 28 is fixedly mounted at the triangular portion of the upper end of the support plate 27, the upper end of the guide rod 28 is slidably mounted on the base 1, a screw rod 29 is rotatably mounted at one corner of the upper end of the support plate 27, and the screw rod 29 is threadedly mounted on the base 1;

[0055] During operation, the device is pushed to the roadbed of the working area by the universal wheel 26, and the screw rod 29 is rotated to drive the support plate 27 and the guide rod 28 to descend, and the device is lifted off the ground, which is beneficial to ensure that the device will not move when taking soil, thereby ensuring the stability of the soil.

[0056] A method for using a roadbed compaction detection device, the specific steps are as follows:

[0057] Step 1: Lift the device off the ground using the lifting mechanism, and insert the bevel plate 4 and the vertical plate 6 under the roadbed to be inspected using the hydraulic cylinder 1 3 and the hydraulic cylinder 2 5 respectively to form an enclosed area;

[0058] Step 2: Insert the fixing block 10 into the fixing hole 15 and start the motor 8 to drive the soil in the entire enclosed area to rise to the upper side of the base 1;

[0059] Step 3: Use the cleaning strip 18 to clean the excess soil on the outer side of the bevel cutting plate 4 and the vertical cutting plate 6;

[0060] Step 4: Open the enclosed area to allow the soil in the enclosed area to fall into the collection box on the lower side, and use the cleaning strip 2 19 to clean the soil adhering to the inner walls of the oblique cutting plate 4 and the vertical cutting plate 6 in the enclosed area and weigh them uniformly.

[0061] Working principle:

[0062] When the present invention is in use, the universal wheel 26 is used to push the device to the roadbed in the working area, and the screw rod 29 is rotated to drive the support plate 27 and the guide rod 28 to descend, so as to lift the device off the ground, which is beneficial to ensure that the device will not move when taking soil, thereby ensuring the stability of taking soil. The hydraulic cylinders 1 3 on both sides are started to push the bevel plates 4 on both sides to descend, and the bevel plates 4 on both sides will gradually insert into the roadbed soil. When the lower ends of the bevel plates 4 on both sides abut, the hydraulic cylinders 1 3 on both sides stop working, and then the hydraulic cylinders 2 5 are started to push the vertical cutting plates 6 on both sides to descend and extend into the roadbed soil on the lower side. The vertical cutting plates 6 will descend along the front and rear end surfaces of the bevel cutting plates 4 until the lower ends of the vertical cutting plates 6 and the lower ends of the bevel cutting plates 4 are kept at the same horizontal line and stop. At this time, the bevel cutting plates on both sides are The plate 4 and the vertical cutting plates 6 on both sides will enclose a closed area except for the upper end. The base 1 has a built-in counterweight, which is sufficient to support the downward pressure of the hydraulic cylinder 1 3 and the hydraulic cylinder 2 5, so that the device will not be lifted up. Then the motor 8 is started to drive the screw 1 7 to rotate, and the screw 1 7 drives the lifting plate 2 to rise. The lifting plate 2 drives the hydraulic cylinder 2 5 and the vertical cutting plate 6 on both sides, and the hydraulic cylinder 1 3 and the bevel cutting plate 4 on both sides to rise, so as to bring out the soil under the roadbed. Since the lower end and the surrounding areas of the closed area are closed areas, the soil will not fall from the hollow area below, thereby ensuring the accuracy of the subsequent roadbed compaction test. When the vertical cutting plate 6 extends into the ground soil and completes the encirclement with the bevel cutting plate 4, the fixing block 10 is just at the same position as the fixing hole 15. On a horizontal axis, start the hydraulic cylinder three 14 to drive the top bar 13 to descend, the top bar 13 pushes the inclined block 11 to drive the fixed block 10 to extend out of the vertical cutting plate 6, compress the spring one 12, and the fixed block 10 will push the stopper 16 to slide into the fixing hole 15, compress the spring two 17, and insert the fixed block 10 into the fixing hole 15, which is conducive to improving the stability of the connection between the inclined cutting plates 4 on both sides and the vertical cutting plates 6 on both sides, so that when the inclined cutting plates 4 on both sides and the vertical cutting plates 6 on both sides are raised to carry out the roadbed soil, there will be no gap or looseness between the inclined cutting plates 4 on both sides and the vertical cutting plates 6 on both sides, resulting in the soil in the enclosed area of the inclined cutting plates 4 on both sides and the vertical cutting plates 6 on both sides falling, thereby improving the accuracy of subsequent roadbed compaction detection. The spring two is set 17 and the stopper 16 are convenient for preventing excess soil from entering the fixing hole 15 when the bevel cutting plate 4 is lowered and extended into the roadbed soil, causing the fixing hole 15 to be blocked. When the bevel cutting plates 4 on both sides and the vertical cutting plates 6 on both sides bring out the roadbed soil, the staff first pushes the cleaning bar 18 to slide downward, which is conducive to cleaning up the excess mud adhering to the outside of the bevel cutting plates 4 and the vertical cutting plates 6 on both sides, and preventing the mud adhering to the outside of the bevel cutting plates 4 and the vertical cutting plates 6 on both sides from falling into the collection box when collecting the soil in the area enclosed by the bevel cutting plates 4 and the vertical cutting plates 6 on both sides. After the outside is cleaned, the staff places the collection box just below the bevel cutting plates 4 and the vertical cutting plates 6 on both sides, and then starts the hydraulic cylinder 3 14 to drive the top bar 13 to rise.The spring 12 drives the inclined block 11 and the fixed block 10 to reset, and sequentially starts the hydraulic cylinder 1 3 and the hydraulic cylinder 2 5 on both sides to respectively drive the inclined cutting plates 4 and the vertical cutting plates 6 on both sides to rise. At this time, the area enclosed by the inclined cutting plates 4 and the vertical cutting plates 6 on both sides will disappear, and the soil in the enclosed area will fall into the collection box on the lower side. Then, the cleaning bar 2 19 is pushed to drive the connecting bar 21 to slide downward, which is conducive to scraping the soil adhering to the inner walls of the inclined cutting plates 4 and the vertical cutting plates 6 on both sides into the collection box on the lower side, thereby improving the collection efficiency and quality of the soil in the enclosed area of the inclined cutting plates 4 and the vertical cutting plates 6 on both sides, and pushing the limit Block 24 separates it from the insert block 23, and by compressing spring three 25, the connecting strip 21 and the insert block 23 can be directly removed from the support block 22. The worker only needs to put the soil adhering to the connecting strip 21 together with the weight of the connecting strip 21 itself into the collection box. After measuring the mass, subtract the weight of the four connecting strips 21 themselves to obtain the total mass of the tested and collected soil. The test results are fast, efficient, accurate, and have low error. Moreover, the disassembled connecting strip 21 can be reinstalled with a new connecting strip 21, and the soil collection operation of the new area of the roadbed can be continued without delaying the soil collection efficiency, thereby improving the soil collection efficiency.

[0063] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A roadbed compaction detection device, comprising a base (1), characterized in that: A lifting plate (2) is provided on the upper side of the base (1); A soil taking mechanism for taking soil from the roadbed is also provided, the soil taking mechanism comprising a hydraulic cylinder (3) fixedly mounted on the left and right sides of the lifting plate (2), a bevel plate (4) fixedly mounted on the lower end of the hydraulic cylinder (3), a hydraulic cylinder (5) fixedly mounted on the front and rear sides of the lifting plate (2), a vertical plate (6) fixedly mounted on the lower end of the hydraulic cylinder (5), the hydraulic cylinder (3) and the bevel plate (4) being arranged in an oblique and symmetrical manner in an "eight" shape, the hydraulic cylinder (5) and the vertical plate (6) being arranged symmetrically and vertically, and the ends of the two vertical plates (6) close to each other are located on the same horizontal line as the front and rear ends of the bevel plate (4); A cleaning mechanism for cleaning mud adhered to the oblique cutting plates (4) and the vertical cutting plates (6) is also provided. The cleaning mechanism comprises a cleaning bar (18) slidably mounted on the ends of the two oblique cutting plates (4) and the ends of the two vertical cutting plates (6) that are away from each other, and a cleaning bar (19) slidably mounted on the ends of the two oblique cutting plates (4) and the ends of the two vertical cutting plates (6) that are close to each other. A lifting mechanism is also provided for moving or operating the device, and the lifting mechanism comprises four universal wheels (26) fixedly mounted at the four corners of the lower end of the base (1).

2. A roadbed compaction detection device according to claim 1, characterized in that: A screw rod (7) is threadedly mounted on the left side of the lifting plate (2), a motor (8) is provided at the lower end of the screw rod (7), and the lower end of the motor (8) is fixedly mounted on the base (1). A slide rod (9) is slidably mounted on the right side of the lifting plate (2), and the lower end of the slide rod (9) is fixedly mounted on the base (1).

3. A roadbed compaction detection device according to claim 1, characterized in that: The lower sides of the ends of the vertical cutting plates (6) on both sides that are close to each other are symmetrically and slidingly installed with fixed blocks (10), and the ends of the fixed blocks (10) that are away from each other are fixedly installed with inclined blocks (11), and the inclined blocks (11) are slidably connected to the inside of the vertical cutting plates (6).

4. A roadbed compaction detection device according to claim 1, characterized in that: A spring (12) is fixedly mounted on the corresponding inclined block (11) on the inner wall of the vertical cutting plate (6), and the other end of the spring (12) is fixedly mounted on the inclined block (11). A top bar (13) is provided on the upper end of the inclined block (11) so as to abut against the inclined block (11). A hydraulic cylinder (14) is fixedly mounted on the upper end of the top bar (13). The hydraulic cylinder (14) is fixedly connected to the upper end of the vertical cutting plate (6).

5. A roadbed compaction detection device according to claim 1, characterized in that: The corresponding fixing blocks (10) on the lower sides of the front and rear ends of the bevel plates (4) on both sides are provided with fixing holes (15), and a second spring (17) is fixedly installed in the fixing holes (15). A stopper (16) is fixedly installed at the other end of the second spring (17), and the outer end surface of the stopper (16) is kept on the same horizontal line as the front and rear ends of the bevel plates (4).

6. A roadbed compaction detection device according to claim 1, characterized in that: The corresponding cleaning strips 1 (18) and 2 (19) on one side of the upper ends of the oblique cutting plates (4) on both sides and the vertical cutting plates (6) on both sides are fixedly installed with magnetic strips (20), and the cleaning strips 1 (18) and 2 (19) are both made of iron. The upper ends of the cleaning strips 1 (18) and 2 (19) are both in contact with and magnetically adsorbed on the magnetic strips (20).

7. A roadbed compaction detection device according to claim 1, characterized in that: The lower ends of the two cleaning strips (19) are both abutted and fitted with connecting strips (21), and the ends of the two cleaning strips (19) close to each other are both fixedly installed with support blocks (22), and the upper ends of the connecting strips (21) are both fixedly installed with plug blocks (23), and the upper ends of the plug blocks (23) are both slidably installed on the support blocks (22), and the upper ends of the support blocks (22) corresponding to the plug blocks (23) are both slidably installed with limit blocks (24), and the limit blocks (24) are slidably installed on the plug blocks (23).

8. A roadbed compaction detection device according to claim 7, characterized in that: The ends of the limit blocks (24) that are away from each other are fixedly mounted with spring three (25), and the ends of the spring three (25) that are away from each other are fixedly mounted on the support block (22).

9. A roadbed compaction detection device according to claim 1, characterized in that: The base (1) is provided with a support plate (27) on the lower side, and a guide rod (28) is fixedly installed at the triangular position of the upper end of the support plate (27). The upper end of the guide rod (28) is slidably installed on the base (1), and a screw rod (29) is rotatably installed at a corner of the upper end of the support plate (27). The screw rod (29) is threadedly installed on the base (1).

10. A method for using a roadbed compaction detection device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: Lift the device off the ground through the lifting mechanism, and insert the bevel cutting plate (4) and the vertical cutting plate (6) under the roadbed to be inspected through the hydraulic cylinder 1 (3) and the hydraulic cylinder 2 (5) respectively to form an enclosed area; Step 2: insert the fixing block (10) into the fixing hole (15), start the motor (8) to drive the soil in the entire enclosed area to rise to the upper side of the base (1); Step 3: Clean excess soil from the outer side surfaces of the bevel-cut plate (4) and the vertical-cut plate (6) using the cleaning strip 1 (18); Step 4: Open the enclosed area and allow the soil in the enclosed area to fall into the collection box on the lower side, and use the cleaning strip 2 (19) to clean the soil adhering to the inner walls of the oblique cutting plate (4) and the vertical cutting plate (6) in the enclosed area and weigh them uniformly.

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