Road construction quality detection device

Abstract

The invention relates to the technical field of road construction, in particular to a road construction quality detection device which comprises a supporting plate and further comprises a shell, the outer side of the inner supporting plate is rotationally sleeved with the shell, and the upper portion of the outer side wall of the shell is slidably sleeved with a limiting ring; the inner shell is rotationally installed on the surface of the lower end of the inner supporting plate, a soil sampling ring is installed on the inner side of the inner shell, and a soil discharging mechanism is arranged between the soil sampling ring and the inner wall of the outer shell; the driving mechanism is mounted at the upper end of the inner supporting plate; and the moving groove is formed in the inner supporting plate in a penetrating mode, a displacement mechanism is installed on one side of the moving groove, a motor is installed above the working end of the displacement mechanism, and a connecting plate is installed below the working end of the displacement mechanism. The problem that the result is affected by large-area soil layer stripping caused by the angle of the scraper during soil sampling can be effectively avoided, and meanwhile soil layers with different depths can be sampled so that the compaction degree of different layers of a road can be better known.

Description

Technical Field

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

[0002] Compaction degree, also known as tamping degree, refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density, expressed as a percentage. The compaction quality of roadbed and pavement is one of the most important internal indicators of road construction quality management. Only by fully compacting the roadbed and pavement structure layers can the strength, stiffness, stability and flatness of the roadbed and pavement be guaranteed, thereby extending the service life of the roadbed and pavement. Dry density refers to the density when there is no water in the pores of the soil, which is calculated by density and moisture content. The standard maximum dry density refers to the dry density of road construction materials at the optimal moisture content according to the standard compaction test method.

[0003] At present, the sand injection method and the ring knife method are mostly used to detect the compaction of the roadbed. When using the ring knife method, workers manually hammer the ring knife into the base layer, and the verticality of the ring knife cannot be guaranteed. When taking soil samples later, the soil above and below the ring knife needs to be scraped flat in order to calculate the volume. However, different degrees of dryness and wetness will cause the soil layer to clump. Slight changes in force and angle during scraping will easily cause large lumps of soil to fall off, affecting the accuracy of the test results. At the same time, the ring knife method can only measure the overall soil sampling, and cannot measure the dry density of different depths of the road. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems existing in the prior art and to propose a road construction quality detection device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a road construction quality detection device, comprising a support plate, a through groove penetrating from top to bottom is arranged at the middle position of the support plate, a plurality of groups of support feet are fixedly installed on the side of the support plate, a height adjustment mechanism is arranged on the upper end surface of the support plate, an output end of the height adjustment mechanism is fixedly connected to an inner support plate, and further comprising:

[0006] An outer shell, the outer shell is rotatably sleeved on the outer side of the inner support plate, and a limiting ring is slidably sleeved on the upper side wall of the outer shell, a connecting ring is rotatably sleeved on the outer side of the limiting ring, and a fixing rod is connected between the connecting ring and the supporting foot;

[0007] An inner shell, wherein the inner shell is rotatably mounted on the lower end surface of the inner support plate, and a soil taking ring is mounted on the inner side thereof, and a soil discharge mechanism is arranged between the soil taking ring and the inner wall of the outer shell;

[0008] A driving mechanism, which is mounted on the upper end of the inner support plate and is used to drive the outer shell to rotate;

[0009] A movable groove is provided through the inner support plate, and a displacement mechanism is installed on one side of the movable groove. A motor is installed above the working end of the displacement mechanism, and a connecting plate is installed below. A transmission mechanism connected to the output end of the motor is installed at one end of the connecting plate close to the displacement mechanism, and a soil taking mechanism is provided at one end of the connecting plate away from the electric slider.

[0010] Preferably, the height adjustment mechanism comprises two groups of electric cylinders fixedly mounted on the upper end surface of the support plate and symmetrically arranged about the through slot, and the output ends of the electric cylinders are fixedly connected to the inner support plate after sliding through the support plate.

[0011] Preferably, the soil discharge mechanism includes a plurality of groups of soil discharge knives rotatably installed in a circular array below the side wall of the soil extraction ring, the soil discharge knives are in the shape of spiral blades, and their upper ends are sleeved on the outside of the inner shell, and a baffle is fixedly installed on the lower end of the soil discharge knife, the bottom surface of the baffle is slightly higher than the bottom surface of the soil discharge knife, and the intersection line between the two gradually rises outward, and the side wall of the outer shell is provided with a plurality of soil discharge openings in a circular array, the number of the soil discharge openings is the same as the number of the soil discharge knives, and the upper ends of the soil discharge knives are close to the corresponding soil discharge openings.

[0012] Preferably, the driving mechanism includes a connecting block fixedly mounted on one side of the upper end surface of the inner support plate, a servo motor fixedly mounted on the connecting block, an output end of the servo motor vertically downward and fixedly mounted with a gear, an inner gear ring fixedly mounted above the inner side wall of the outer shell, and the gear is meshingly connected with the inner gear ring.

[0013] Preferably, the displacement mechanism includes a first electric slide rail fixedly mounted on the inner support plate, an electric slider is slidably mounted on the first electric slide rail, the electric slider passes through the movable groove, the motor is fixedly mounted on the upper end of the electric slider, and the connecting plate is fixedly mounted on the lower end of the electric slider.

[0014] Preferably, the transmission mechanism includes a first indexer and a second indexer fixedly mounted on a connecting plate, the first indexer and the second indexer are both located directly below the motor, and the output end of the motor passes through the input holes of the first indexer and the second indexer at the same time, a first angle gauge is installed at the output end of the first indexer, a second angle gauge is installed at the output end of the second indexer, a first driving wheel is fixedly mounted at the output end of the first angle gauge via a rotating shaft, a second driving wheel is fixedly mounted at the output end of the second angle gauge via a rotating shaft, the first driving wheel is tightly against the first synchronous belt and controls the operation of the first synchronous belt through friction, and the second driving wheel is tightly against the second synchronous belt and controls the operation of the second synchronous belt through friction.

[0015] Preferably, the soil-taking mechanism includes a plurality of semi-annular cutters fixedly mounted on the side of the first driving wheel via a transmission shaft, a stopper is rotatably mounted on the inner wall of the semi-annular cutter, one end of the stopper close to the second synchronous belt is fixedly connected to a connecting shaft, and the connecting shaft is fixedly connected to the second synchronous belt after rotating through the semi-annular cutter and the hole at the center of the driven shaft.

[0016] Preferably, a limit plate fixedly mounted on a connecting plate is provided at the end of the first synchronous belt away from the first driving wheel, the limit plate is in contact with the surface of the outermost semi-ring knife, and a positioning sheet is fixedly connected to the end of the limit plate away from the connecting plate, the positioning sheet is vertically arranged to the limit plate, and the lower end surface of the positioning sheet is kept consistent in height with the opening of the semi-ring knife.

[0017] Preferably, it also includes a scraping mechanism, which includes a second electric slide rail fixedly installed on one side of the upper end of the soil taking ring, a first electric slide groove is opened on the side of the second electric slide rail, and a second electric slide groove is opened on the upper end, a dividing knife vertically arranged therein is slidably installed inside the first electric slide groove, the lower surface of the dividing knife is in contact with the upper surface of the soil taking ring, a lower bulldozer is slidably installed inside the second electric slide groove, an electric push rod is fixedly installed above one end of the lower bulldozer close to the second electric slide rail, and the output end of the electric push rod faces upward and is fixedly connected to the bulldozer.

[0018] Preferably, a collecting mechanism is also included, which includes a controller fixedly installed on the other side of the upper end surface of the inner support plate, a conveyor belt vertically passing through the inner support plate is provided on one side of the controller, and both sides of the conveyor belt shell are fixedly connected to the inner wall of the inner support plate, and a plurality of groups of magnetic rotating shafts and a plurality of groups of limit blocks are fixedly installed on the surface of the conveyor belt, and the magnetic rotating shafts and the limit blocks are used in conjunction with each other, and the surface of the magnetic rotating shaft is in rotational contact with a collection box, and the magnetic rotating shaft can adsorb the collection box on the surface and rotate along its axis.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. In the present application, the soil around the sampling can be discharged through the arrangement of the outer shell, the soil sampling ring, the soil discharge knife and the baffle plate. At the same time, since the intersection line between the baffle plate and the soil discharge knife gradually rises outward, the waste soil at the edge of the soil sampling ring will be cut and blocked by the baffle plate during the downward drilling process. The soil excavated later during the cutting process is pushed to move toward the edge and upward along the above-mentioned intersection line, and finally discharged from the soil discharge port on the side, while the soil sampling ring in the middle keeps descending in a vertical state and collects the soil in the middle. This method of sampling can ensure the advantage of small downward force of rotating soil sampling, and at the same time isolate the disturbance of the internal soil sample caused by rotating soil sampling, thereby improving the sampling accuracy.

[0021] 2. In the present application, by setting the first synchronous belt, the second synchronous belt, the semi-ring knife and the block, the blade on the side of the semi-ring knife will rotate vertically downward to cut into the soil, and rotate until the side blade is completely in the soil. The vertical downward cutting can ensure that the soil will not be lifted up due to the problem of the angle of the blade entering the soil, and prevent the surface soil from clumping and peeling off. When sampling, the entire soil sample will not peel off because of the support on all sides, resulting in inaccurate sampling results. In this way, soil sampling can control the volume of the soil sample to a constant value, which solves the volume measurement error caused by the agglomeration and peeling of the soil sample when the ring knife method is used to sample and level the soil sample.

[0022] 3. In the present application, through the setting of the scraping mechanism, the first electric slide will drive the splitting knife to move along the upper side of the soil sampling ring, cutting the connection between the disturbed soil sample and the soil sample to be collected below to prevent the soil sample below from being affected when discharging the soil. In addition, the splitting knife can still prevent the soil blocks from tilting and collapsing during the cutting process, thereby ensuring the accuracy of the next sampling volume to the greatest extent.

[0023] 4. In the present application, through the setting of the soil collecting mechanism, when the soil samples to be tested are collected in the collecting box, the controller will control the conveyor belt part of the conveyor belt to run counterclockwise, and the magnetic rotating shaft and the limit block are fixed on the conveyor belt surface of the conveyor belt. The collecting box containing the soil samples to be tested will be conveyed to the top and taken away for testing, and the empty collecting box at the back will be conveyed to the position of the original collecting box to prepare for collecting the soil samples to be tested in the next soil layer.

[0024] In summary, the present application can effectively avoid the problem of large-scale peeling of the soil layer due to the angle of the scraper affecting the results when taking soil through the setting of the above-mentioned structure. At the same time, it can also sample soil layers at different depths to better understand the compaction degree of different layers of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a road construction quality detection device proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the explosion structure of a road construction quality detection device proposed by the present invention;

[0027] Figure 3 A partial structural schematic diagram of a road construction quality detection device proposed by the present invention;

[0028] Figure 4 A schematic diagram of the internal structure of a housing of a road construction quality detection device proposed by the present invention;

[0029] Figure 5 A schematic diagram of the structure of a soil taking mechanism of a road construction quality inspection device proposed by the present invention;

[0030] Figure 6 A partial structural schematic diagram of a soil taking mechanism of a road construction quality inspection device proposed by the present invention;

[0031] Figure 7 A schematic diagram of the explosion structure of a part of the earth-taking mechanism of a road construction quality detection device proposed by the present invention;

[0032] Figure 8 A schematic structural diagram of a soil taking mechanism state 1 of a road construction quality inspection device proposed by the present invention;

[0033] Fig. 9 A schematic structural diagram of a soil taking mechanism state 2 of a road construction quality inspection device proposed by the present invention;

[0034] Fig.10 A schematic structural diagram of a soil taking mechanism state 3 of a road construction quality inspection device proposed by the present invention;

[0035] Fig.11 A schematic structural diagram of a scraping mechanism state 1 of a road construction quality detection device proposed by the present invention;

[0036] Fig.12 A schematic structural diagram of a second state of a soil scraping mechanism of a road construction quality detection device proposed by the present invention;

[0037] Fig.13 A schematic structural diagram of a road construction quality detection device proposed by the present invention in a subsequent state of soil scraping;

[0038] Fig.14 This is a partial half-section structural schematic diagram of a collecting mechanism of a road construction quality detection device proposed by the present invention.

[0039] In the figure: 1 support plate, 11 electric cylinder, 12 support foot, 13 connecting ring, 14 inner support plate, 15 connecting block, 16 servo motor, 17 gear, 2 outer shell, 21 soil discharge port, 22 inner gear ring, 23 inner shell, 231 soil discharge knife, 232 baffle, 24 limit ring, 3 conveyor belt, 31 controller, 32 with magnetic shaft, 33 limit block, 34 collection box, 4 soil ring, 5 first electric slide rail, 51 electric slide block, 511 connecting plate, 512 limit Plate, 513 positioning sheet, 52 motor, 53 first indexer, 531 first angler, 532 first driving wheel, 533 first synchronous belt, 534 semi-annular knife, 54 second indexer, 541 second angler, 542 second driving wheel, 543 second synchronous belt, 544 block, 6 second electric slide rail, 61 first electric slide, 611 dividing knife, 62 second electric slide, 621 lower bulldozer, 622 electric push rod, 623 upper bulldozer. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0041] Reference Figures 1 to 14 A road construction quality inspection device includes a support plate 1, a through groove running through from top to bottom is provided in the middle of the support plate 1, multiple groups of support feet 12 are fixedly installed on the side of the support plate 1, the lower ends of the support feet 12 are in contact with the ground, two groups of electric cylinders 11 are fixedly installed on both sides of the upper end surface of the support plate 1, and the output end of the electric cylinder 11 is fixedly connected with an inner support plate 14 after sliding through the support plate 1, the outer side of the inner support plate 14 is provided with a housing 2, a limit ring 24 is provided on the upper side wall of the housing 2, and the outer side of the limit ring 24 is provided with a connecting ring 13, and the connecting ring 13 is connected to the support foot 12 through a fixed rod. Therefore, when the electric cylinder 11 is running, it can drive the inner support plate 14 to move up and down, and the inner support plate 14 drives the housing 2 to move up and down while moving up and down, and the connecting ring 13 plays a role of limiting and supporting in this process.

[0042] A connecting block 15 is fixedly installed on one side of the upper end surface of the inner support plate 14, and a servo motor 16 is fixedly installed on the connecting block 15. The output end of the servo motor 16 is vertically downward and fixedly installed with a gear 17. An inner gear ring 22 is fixedly installed on the upper inner wall of the outer shell 2, and the gear 17 is meshingly connected with the inner gear ring 22, so that when the servo motor 16 is running, the outer shell 2 can be driven to rotate through the meshing connection between the gear 17 and the inner gear ring 22.

[0043] A moving groove is provided on the inner support plate 14, and a first electric slide rail 5 fixedly installed on the inner support plate 14 is provided next to the moving groove. An electric slider 51 is slidably installed on the first electric slide rail 5, and the electric slider 51 is provided through the moving groove. A motor 52 is fixedly installed on the upper end of the electric slider 51 (the motor is the prior art, which is a direct drive motor, also known as a DD motor, and has the characteristics of low speed, large torque and fast response), and a connecting plate 511 is fixedly installed on the lower end of the electric slider 51. The first indexer 53 and the second indexer 54 are fixedly installed in sequence from top to bottom on the end of the connecting plate 511 close to the electric slider 51. The first indexer 53 and the second indexer 54 are both located directly below the motor 52, and the output end of the motor 52 passes through the input holes of the first indexer 53 and the second indexer 54 at the same time. Therefore, when the motor 52 is working, it can simultaneously control the operation of the first indexer 53 and the second indexer 54. The output end of the first indexer 53 is equipped with a first angler 531, and the output end of the second indexer 54 is equipped with a second angler 541 (the first angler 531 and the second angler 541 are both prior art, and the input shaft is driven to the output end at a right angle with a speed of 1:1 through the internal bevel gear).

[0044] The output end of the first angler 531 is fixedly mounted with a first driving wheel 532 via a rotating shaft, the output end of the second angler 541 is fixedly mounted with a second driving wheel 542 via a rotating shaft, and the end of the connecting plate 511 away from the electric slider 51 is rotated from the inside to the outside in sequence with the second synchronous belt 543 and the first synchronous belt 533 (as shown in the attached figure) Figure 6 As shown, the first driving wheel 532 is closely attached to the first synchronous belt 533 and controls the operation of the first synchronous belt 533 through friction, the second driving wheel 542 is closely attached to the second synchronous belt 543 and controls the operation of the second synchronous belt 543 through friction, a plurality of semi-annular knives 534 are fixedly installed on the side of the first driving wheel 532 through a transmission shaft, a stopper 544 is rotatably installed on the inner wall of the semi-annular knives 534, and a connecting shaft is fixedly connected to one end of the stopper 544 close to the second synchronous belt 543, and the connecting shaft is fixedly connected to the second synchronous belt 543 after rotating through the semi-annular knives 534 and the hole at the center of the driven shaft, so that when the second synchronous belt 54 During operation, multiple blocks 544 can be driven to rotate inside the semi-annular knife 534 at the same time, without affecting the normal operation of the first synchronous belt 533 and the semi-annular knife 534. The end of the first synchronous belt 533 away from the first driving wheel 532 is provided with a limit plate 512 fixedly mounted on the connecting plate 511, and the limit plate 512 is in contact with the surface of the outermost semi-annular knife 534. The end of the limit plate 512 away from the connecting plate 511 is fixedly connected with a positioning sheet 513, and the positioning sheet 513 is vertically arranged with the limit plate 512, and the lower end surface of the positioning sheet 513 is consistent with the height of the opening of the semi-annular knife 534.

[0045] The inner shell 23 is rotatably mounted on the lower end surface of the inner support plate 14, and a soil collecting ring 4 is mounted inside the inner shell 23. A plurality of soil discharge knives 231 are rotatably mounted in a circular array below the side wall of the soil collecting ring 4. The soil discharge knives 231 are in the shape of spiral blades (such as the attached Figure 4 The upper end of the soil removal knife 231 is sleeved on the outer side of the inner shell 23, and the lower end of the soil removal knife 231 is fixedly installed with a baffle 232, the bottom surface of the baffle 232 is slightly higher than the bottom surface of the soil removal knife 231, and the intersection line of the baffle 232 and the soil removal knife 231 gradually rises outward (as shown in the attached figure). Figure 4 As shown), the side wall of the outer shell 2 is provided with a plurality of soil discharge openings 21 in a circular array, the number of the soil discharge openings 21 is the same as the number of the soil discharge knives 231, and the upper ends of the soil discharge knives 231 are close to the corresponding soil discharge openings 21, so when the gear 17 connected to the output end of the servo motor 16 drives the inner gear ring 22 to rotate along the axis of the outer shell 2, the outer shell 2, the inner shell 23, the soil discharge knife 231 and the baffle 232 can be rotated along the axis of the outer shell 2 together, and the device can discharge the soil around the sampling.

[0046] A second electric slide rail 6 is fixedly installed on one side of the upper end of the earth-picking ring 4, a first electric slide groove 61 is opened on the side of the second electric slide rail 6, and a second electric slide groove 62 is opened on the upper end, a dividing knife 611 is slidably installed inside the first electric slide groove 61 and is arranged vertically thereto, and the lower surface of the dividing knife 611 is in contact with the upper surface of the earth-picking ring 4, a lower bulldozer 621 is slidably installed inside the second electric slide groove 62, an electric push rod 622 is fixedly installed above one end of the lower bulldozer 621 close to the second electric slide rail 6, the output end of the electric push rod 622 is upward and fixedly connected to the bulldozer, and the upper bulldozer 623 can be controlled to move up and down by the operation of the electric push rod 622, so that the upper bulldozer 623 can be in contact with the surface of the block 544.

[0047] A controller 31 is fixedly installed on the other side of the upper end surface of the inner support plate 14, and a conveyor belt 3 is arranged on one side of the controller 31, which vertically passes through the inner support plate 14. Both sides of the outer shell 2 of the conveyor belt 3 are fixedly connected to the inner wall of the inner support plate 14, and a plurality of groups of magnetic rotating shafts 32 and a plurality of groups of limit blocks 33 are fixedly installed on the surface of the conveyor belt 3. The magnetic rotating shafts 32 and the limit blocks 33 are used in conjunction with each other. The surface of the magnetic rotating shaft 32 is in contact with a collecting box 34 when rotating. The magnetic rotating shaft 32 can adsorb the collecting box 34 on the surface and rotate along its axis, and the limit blocks 33 can be used to support the collecting box 34 when collecting soil samples to prevent shaking and causing the soil to fall.

[0048] The specific working principle of the present invention is as follows: when it is necessary to perform soil extraction operation, place the device flat at the location where the soil to be sampled is located, start the servo motor 16 first, and the gear 17 fixedly connected to the output end of the servo motor 16 meshes with the inner gear ring 22. Since the inner gear ring 22 is fixed to the inner end face of the outer shell 2, the gear 17 connected to the output end of the servo motor 16 will drive the inner gear ring 22 to rotate along the axis of the outer shell 2, thereby causing the outer shell 2, the inner shell 23, the soil removal knife 231 and the baffle 232 to rotate along the axis of the outer shell 2 together. At this time, the device can discharge the soil around the sampling, and then start the electric cylinder 11. The output end of the electric cylinder 11 will push the inner support plate 14 and thereby drive the rotating outer shell 2 to move downward, and the device begins to drill the soil downward. Since the bottom surface of the baffle 232 is slightly higher than the bottom surface of the soil removal knife 231 (such as Figure 4 ), and at the same time, the intersection line between the baffle plate 232 and the soil discharge knife 231 gradually rises outwards. Therefore, in the process of drilling downwards, the waste soil at the edge of the soil collection ring 4 will be cut and blocked by the baffle plate 232. The soil excavated later in the cutting process is pushed to move toward the edge and upward along the above intersection line (the process of waste soil climbing is similar to the working principle of the screw of an injection molding machine), and finally discharged from the side soil discharge port 21. The soil collection ring 4 in the middle keeps a vertical state and descends to collect the soil in the middle. This method of sampling can ensure the advantage of small downward force of rotating soil collection, and at the same time isolate the disturbance of the internal soil sample caused by rotating soil collection, thereby improving the sampling accuracy.

[0049] When the device is moving downward to take soil, the soil level inside the soil taking ring 4 will rise due to relative movement. Figure 8 When the soil level rises to the side plane of the stopper 544, the soil taking mechanism starts to work. The electric cylinder 11 is closed to record the descending depth, and the first electric slide rail 5 is started. The electric slide groove on the left side of the first electric slide rail 5 controls the electric slide block 51, and then controls all the components connected to the electric slide block 51 to move to the right synchronously (as shown in FIG. Figure 6 until the side end surface of the positioning sheet 513 is in close contact with the side surface of the collecting box 34 (as shown in the direction Fig.13 ). Start the motor 52, the output end of the motor 52 first controls the semi-circular knife 534 to rotate 180 degrees clockwise (i.e., from Figure 8 Exercise to Fig. 9 ), at this time, the blade on the side of the semi-annular knife 534 will rotate vertically downward to cut into the soil, and rotate until the side blade is completely in the soil. Vertical downward cutting can ensure that the soil will not be lifted up due to the angle of the blade entering the soil, and prevent the surface soil from clumping and peeling off. When the side of the semi-annular knife 534 rotates to a certain angle, the soil block will have a tendency to lift up and move to the left due to the force applied by the semi-annular knife 534. However, at this time, because there is a stopper 544 on the upper end face of the soil sample taken, the upward movement trend of the soil block will be blocked by the side plane of the stopper 544, and the leftward movement trend will be blocked by the outer wall of the blade of the other semi-annular knife 534 on the left (the movement trend of the soil sample taken by the leftmost semi-annular knife 534 will be blocked by the side limit plate 512, such as Fig. 9 The soil sample to be tested is now placed in the semi-cylindrical space between the semi-annular knife 534 and the stopper 544. The semi-annular knife 534 ends its movement and the stopper 544 begins to rotate 180 degrees clockwise. Since the outer wall of the stopper 544 is in close contact with the inner wall of the blade of the semi-annular knife 534 when the stopper 544 rotates, the soil sample in the semi-cylindrical space below can be completely dug out (i.e., from the semi-annular knife 534). Fig. 9 Exercise to Fig.10 ), the motor 52 is turned off to stop the transmission, and at this time, all the soil samples with detection are taken to the upper side plane of the stopper 544 for subsequent collection ( Fig.10 In this way, the volume of the soil sample can be controlled to be a constant value, which solves the volume measurement error caused by the agglomeration and peeling of the soil sample when the ring knife method is used to sample and scrape the soil sample.

[0050] When the soil sample is taken to the side plane of the stopper 544, the scraping mechanism is started. Fig.11 To be the initial state of the scraping mechanism, the electric push rod 622 and the first electric chute 61 are started at the same time, and the output end of the electric push rod 622 drives the upper bulldozer 623 to descend to the side plane close to the stopper 544, and at the same time, the first electric chute 61 drives the segmentation knife 611 to move along the upper side of the soil taking ring 4 (i.e., from Fig.11 Exercise to Fig.12 ), cut the connection between the disturbed soil sample and the soil sample to be collected below to prevent the soil sample below from being affected when the soil is discharged. Since the segmentation knife 611 is a vertical cutting and the movement trend of the upper soil sample is blocked by the outer wall of the semi-ring knife 534, and the movement trend of the lower soil sample to be collected is blocked by the upper soil sample, the soil block can still be kept from tilting and collapsing during the cutting process of the segmentation knife 611, thereby ensuring the accuracy of the next sampling volume to the greatest extent. After the soil block is cut off by the segmentation knife 611, the second electric chute 62 is started, driving the lower bulldozer 621 and the electric push rod 622 fixed on the upper end surface of the lower bulldozer 621, and then driving the upper bulldozer 623 to move to the left together ( Fig.11 As the recessed shape on the lower push plate 621 is consistent with the outer contour of the semi-circular cutter 534, the disturbed soil sample removed from the lower part will be pushed to the left together when scraping the soil. The upper push plate 623 is tightly attached to the side plane of the stopper 544, and will also push the soil to be tested to the left (as shown). Fig.13 As shown in the direction, since there is a large gap between the side of the collecting box 34 and the soil ring 4, the disturbed soil scraped by the lower push plate 621 will fall through the gap, while the soil sample pushed by the upper push plate 623 will not fall because of the support of the positioning sheet 513 at the bottom, and will eventually be pushed into the opening of the collecting box 34 to complete the collection of the test soil sample (as shown in the direction shown in the direction). Fig.13 The disturbed soil will fall from the bottom onto the soil removed by the soil removal knife 231 below, and will be discharged from the soil removal port 21 together with the soil removal operation above.

[0051] When the soil sample to be tested is collected in the collecting box 34, the controller 31 controls the conveyor belt portion of the conveyor belt 3 to run counterclockwise (e.g. Fig.14 The conveyor belt 3 is provided with a magnetic shaft 32 and a limit block 33, which are fixed on the conveyor belt surface of the conveyor belt 3 (the magnetic shaft 32 is a shaft with magnetism, which can adsorb the collection box 34 on the surface and rotate along the axis, and the limit block 33 is used to support the collection box 34 when collecting soil samples to prevent the soil from falling due to shaking). The collection box 34 containing the soil sample to be tested will be transported to the top and taken away for testing, and the empty collection box 34 at the back will be transported to the original location of the collection box 34 to prepare for collecting the soil sample to be tested in the next soil layer. After the collection is completed, the first electric slide rail 5 is started to control the electric slider 51 and the components connected thereto to reset (the principle is the same as above), and the motor 52 is started again to control the semi-ring knife 534 and the stop block 544 to rotate 180 degrees in sequence (the principle is the same as above). The second electric slide rail 6 and the electric push rod 622 also control the dividing knife 611, and the lower bulldozer plate 621 and the upper bulldozer plate 623 are reset (that is, from Fig.13 Exercise to Fig.12 Then exercise to Fig.11, the principle is the same as above), the motor 52 is turned off, the electric cylinder 11 is started again, and the device can start sampling the next soil layer. In this way, the layers of different depths of the same road block can be sampled separately, and removing the disturbed soil can also prevent each soil sampling operation from causing volume errors to the next soil sample, further improving the accuracy of the detection results.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A road construction quality inspection device, comprising a support plate (1), wherein a through groove extending vertically through the support plate (1) is provided at the middle position thereof, a plurality of support legs (12) are fixedly mounted on the side of the support plate (1), a height adjustment mechanism is provided on the upper end surface of the support plate (1), and an output end of the height adjustment mechanism is fixedly connected to an inner support plate (14), characterized in that: Also included are: An outer shell (2), the outer shell (2) is rotatably sleeved on the outer side of the inner support plate (14), and a limiting ring (24) is slidably sleeved on the upper side of the outer wall thereof, a connecting ring (13) is rotatably sleeved on the outer side of the limiting ring (24), and a fixing rod is connected between the connecting ring (13) and the supporting foot (12); An inner shell (23), the inner shell (23) being rotatably mounted on the lower end surface of the inner support plate (14), and having a soil collecting ring (4) mounted on the inner side thereof, and a soil discharge mechanism being arranged between the soil collecting ring (4) and the inner wall of the outer shell (2); A driving mechanism, the driving mechanism being mounted on the upper end of the inner support plate (14) and being used to drive the outer shell (2) to rotate; A movable groove is formed through the inner support plate (14) and a displacement mechanism is installed on one side of the movable groove. A motor (52) is installed above the working end of the displacement mechanism, and a connecting plate (511) is installed below the working end. A transmission mechanism connected to the output end of the motor (52) is installed at one end of the connecting plate (511) close to the displacement mechanism, and a soil taking mechanism is provided at one end of the connecting plate (511) away from the electric slider (51).

2. The road construction quality detection device according to claim 1, characterized in that: The height adjustment mechanism comprises two groups of electric cylinders (11) fixedly mounted on the upper end surface of the support plate (1) and symmetrically arranged about the through slot, wherein the output ends of the electric cylinders (11) are fixedly connected to the inner support plate (14) after sliding through the support plate (1).

3. The road construction quality detection device according to claim 1, characterized in that: The soil discharge mechanism comprises a plurality of soil discharge knives (231) rotatably mounted in a circular array below the side wall of the soil extraction ring (4); the soil discharge knives (231) are in the shape of spiral blades, and their upper ends are sleeved on the outer side of the inner shell (23); a baffle (232) is fixedly mounted on the lower end of the soil discharge knives (231); the bottom surface of the baffle (232) is slightly higher than the bottom surface of the soil discharge knives (231), and the intersection line between the two gradually rises outward; the side wall of the outer shell (2) is provided with a plurality of soil discharge openings (21) in a circular array; the number of the soil discharge openings (21) is the same as the number of the soil discharge knives (231), and the upper ends of the soil discharge knives (231) are close to the corresponding soil discharge openings (21).

4. The road construction quality detection device according to claim 1, characterized in that: The driving mechanism comprises a connecting block (15) fixedly mounted on one side of the upper end surface of the inner support plate (14); a servo motor (16) is fixedly mounted on the connecting block (15); an output end of the servo motor (16) is vertically downward and fixedly mounted with a gear (17); an inner gear ring (22) is fixedly mounted above the inner side wall of the housing (2); and the gear (17) is meshingly connected with the inner gear ring (22).

5. The road construction quality detection device according to claim 1, characterized in that: The displacement mechanism comprises a first electric slide rail (5) fixedly mounted on an inner support plate (14); an electric slider (51) is slidably mounted on the first electric slide rail (5); the electric slider (51) passes through a movable groove; the motor (52) is fixedly mounted on the upper end of the electric slider (51); and a connecting plate (511) is fixedly mounted on the lower end of the electric slider (51).

6. The road construction quality detection device according to claim 1, characterized in that: The transmission mechanism comprises a first indexer (53) and a second indexer (54) fixedly mounted on a connecting plate (511); the first indexer (53) and the second indexer (54) are both located directly below a motor (52); and an output end of the motor (52) passes through input holes of the first indexer (53) and the second indexer (54) at the same time; a first angle gauge (531) is mounted on the output end of the first indexer (53); and a second angle gauge (532) is mounted on the output end of the second indexer (54). An angle meter (541), the output end of the first angle meter (531) is fixedly mounted with a first driving wheel (532) via a rotating shaft, the output end of the second angle meter (541) is fixedly mounted with a second driving wheel (542) via a rotating shaft, the first driving wheel (532) is closely attached to a first synchronous belt (533) and controls the operation of the first synchronous belt (533) through friction, and the second driving wheel (542) is closely attached to a second synchronous belt (543) and controls the operation of the second synchronous belt (543) through friction.

7. The road construction quality detection device according to claim 6, characterized in that: The soil taking mechanism comprises a plurality of semi-annular cutters (534) fixedly mounted on the side of the first driving wheel (532) via a transmission shaft, a stopper (544) being rotatably mounted on the inner wall of the semi-annular cutters (534), an end of the stopper (544) close to the second synchronous belt (543) being fixedly connected to a connecting shaft, and the connecting shaft is fixedly connected to the second synchronous belt (543) after rotating through the semi-annular cutters (534) and the hole at the center of the driven shaft.

8. The road construction quality detection device according to claim 7, characterized in that: A limiting plate (512) fixedly mounted on the connecting plate (511) is arranged at one end of the first synchronous belt (533) away from the first driving wheel (532); the limiting plate (512) is in contact with the surface of the outermost semi-annular knife (534); a positioning sheet (513) is fixedly connected to one end of the limiting plate (512) away from the connecting plate (511); the positioning sheet (513) and the limiting plate (512) are arranged vertically, and the lower end surface of the positioning sheet (513) is kept in the same height as the opening of the semi-annular knife (534).

9. The road construction quality detection device according to claim 7, characterized in that: The scraping mechanism also includes a second electric slide rail (6) fixedly mounted on one side of the upper end of the soil collecting ring (4); a first electric slide groove (61) is provided on the side of the second electric slide rail (6); a second electric slide groove (62) is provided on the upper end; a dividing knife (611) vertically arranged therewith is slidably mounted inside the first electric slide groove (61); the lower surface of the dividing knife (611) is in contact with the upper surface of the soil collecting ring (4); a lower bulldozer (621) is slidably mounted inside the second electric slide groove (62); an electric push rod (622) is fixedly mounted above one end of the lower bulldozer (621) close to the second electric slide rail (6); the output end of the electric push rod (622) faces upward and is fixedly connected to the bulldozer.

10. The road construction quality detection device according to claim 1, characterized in that: The invention also comprises a collecting mechanism, wherein the collecting mechanism comprises a controller (31) fixedly mounted on the other side of the upper end surface of the inner support plate (14); a conveyor belt (3) vertically penetrating the inner support plate (14) is arranged on one side of the controller (31); both sides of the outer shell (2) of the conveyor belt (3) are fixedly connected to the inner wall of the inner support plate (14); a plurality of groups of magnetic rotating shafts (32) and a plurality of groups of limit blocks (33) are fixedly mounted on the surface of the conveyor belt (3); the magnetic rotating shafts (32) and the limit blocks (33) are used in a one-to-one manner; a collecting box (34) is in rotational contact with the surface of the magnetic rotating shaft (32); the magnetic rotating shaft (32) can adsorb the collecting box (34) on the surface and rotate along its axis.

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