Asphalt-laid road sampling investigation device and use method thereof
By setting up an annular block and rotating rod structure on the core drill bit, spraying cooling water and automatically cutting the ball head, the problem of high-temperature melting of asphalt samples by the core drill bit is solved, and efficient and convenient sampling and separation of asphalt samples are achieved.
Patent Information
- Application Number
- CN202510646756.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2025-08-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the core drill bit melts due to high temperature during the drilling process, making it difficult to effectively remove it, affecting the accuracy of detection, and inconvenient discharge operation.
A asphalt paving road sampling and survey device is designed, adopting an annular block and rotating rod structure. The ball head breaks away from the core drill bit when drilling, and sprays cooling water simultaneously to prevent high temperature melting; combined with the sliding cylinder and collection bucket driven by the motor, it realizes automatic discharge and simplifies sample separation.
Effectively prevent asphalt samples from melting at high temperatures, improve sampling accuracy and efficiency, simplify the cutting process, reduce sample sorting pressure, and improve detection efficiency.
Smart Images
Figure CN120486974A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of sampling, and in particular to an asphalt paved road sampling and surveying device and a use method thereof. Background Art
[0002] After the construction of each layer of asphalt road is completed and when the project is delivered for acceptance, sampling and investigation of the asphalt pavement, asphalt quality and asphalt thickness must be carried out. When taking samples, pit digging or drilling methods are generally used for measurement.
[0003] The drilling method uses a core drill bit to drill holes in asphalt roads at high speed, and after drilling, the drilled asphalt blocks are removed for testing. As the core drill bit rotates at high speed, the asphalt blocks are gradually absorbed into the core drill bit. However, since the core drill bit will generate high temperature as the drilling time increases, the asphalt block samples cannot be directly removed during drilling. Contact with the core drill bit will cause the asphalt block samples to melt, which is not conducive to the removal of the asphalt block samples from the core drill bit and will also have an adverse effect on subsequent testing. Summary of the Invention
[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a sampling and surveying device for asphalt paved roads.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] An asphalt paved road sampling and surveying device includes a vehicle frame and a core drill bit. Two parallel connecting beams are fixedly connected between the vehicle frames. L-shaped stoppers are rotatably connected to opposite surfaces of one side of the two connecting beams. A column is fixedly installed in the middle of the connecting beam. Rotating arms are rotatably connected to opposite surfaces of the tops of the two columns. The ends of the two rotating arms are rotatably connected to an island. A sliding cylinder with an open top is slidably connected to the middle of the island through a guide block. A cross is fixedly connected to the top opening of the sliding cylinder. The bottom end of the sliding cylinder passes through the bottom end of the island and is fixedly connected to the connecting cylinder. The bottom of the connecting cylinder is rotatably connected to the core drill bit.
[0007] The top of the core drill bit is fixedly connected to a rotating shaft sleeved inside the connecting cylinder, a second motor is fixedly installed inside the sliding cylinder, the output shaft of the second motor is fixedly connected to the top of the rotating shaft, a cavity is opened inside the core drill bit, and three third slots are evenly opened on the side wall of the core drill bit, and the top of the third slot is a circular structure;
[0008] The top of the connecting tube is fixedly connected with three evenly distributed wedge plates, and the three wedge plates correspond to the positions of the three third slots. The bottom of the connecting tube is provided with three evenly distributed second sliding grooves, and a T-shaped sliding rod is slidably connected in the second sliding groove. The ends of the three T-shaped sliding rods are fixedly connected with an annular block, and three evenly distributed rotating rods are rotatably connected to the annular block. The three rotating rods correspond to the positions of the three wedge plates, and a coil spring is provided on the rotating part of the rotating rod and the annular block.
[0009] Preferably, a first sliding groove is provided on the side wall of the rotating arm close to the island platform, an electric slider is slidably connected in the first sliding groove, and a Z-shaped slider is fixedly connected to the outer side wall of the electric slider.
[0010] Preferably, the top of the island is fixedly connected to a fixing frame, the top of the fixing frame is fixedly installed with a first motor, the output end of the first motor is fixedly connected to a screw, and the outer wall of the screw is threadedly connected to a sleeve fixedly connected to the top of the cross.
[0011] Preferably, a round block is fixedly connected to the top end of the rotating rod, and a ball head is fixedly connected to the bottom end of the rotating rod.
[0012] Preferably, a water inlet is installed in the middle of the rotating rod, and a pipe connected to the water inlet is opened inside the rotating rod below the water inlet. The end of the pipe is connected to several water outlets opened on the ball head, and the inlet end of the water inlet is connected to a micro water pump built into the island through a hose.
[0013] Preferably, wheels are rotatably connected to both sides of the vehicle frame, the micro water pump and the second motor are wirelessly connected via an external remote controller, and the micro water pump and the second motor operate synchronously.
[0014] Preferably, a circular scraper is slidably connected to the top of the internal cavity of the core drill bit, and three steel wires are evenly connected to the top of the circular scraper. The three steel wires pass through the top of the core drill bit and the bottom of the connecting tube and are fixedly connected to three T-shaped sliding rods. The bottom end of the circular scraper is fixedly connected to the base, and three hemispherical grooves are evenly opened on the side wall of the base.
[0015] Preferably, an electric telescopic rod is rotatably connected to the connecting beam between the stop block and the column via a bracket, and the telescopic end of the electric telescopic rod is rotatably connected to the middle side wall of the rotating arm.
[0016] Preferably, a mounting platform is fixedly installed on the two connecting beams on one side of the column, a round table is fixedly connected to the top of the mounting platform, a first discharge hole and a second discharge hole are opened on the top of the round table, a third motor is fixedly installed on the bottom of the mounting platform, the output end of the third motor passes through the round table, and the output end of the third motor is fixedly connected to a first collecting bucket and a second collecting bucket that are symmetrical to each other, two fixed rods are fixedly connected to the side of the top of the mounting platform away from the island platform, a sliding seat is slidably connected to the two fixed rods, a sampling box is placed on the sliding seat, the first discharge hole is opposite to the center of the two fixed rods, and a discharge nozzle is fixedly connected to the bottom end of the second discharge hole.
[0017] A method for using an asphalt paved road sampling and surveying device, the specific steps are as follows:
[0018] Step 1: First, use the towing equipment to drag the frame to the sampling road surface, lock the wheels, and turn the block to the vertical state. At this time, the rotating arm is in a vertical state, that is, the island is located above the round table. In the case of first use, the annular block is not restricted and is in any position of the second slide. Control the telescopic ends of the two electric telescopic rods to retract, drive the two rotating arms to rotate around the column, and stop the electric telescopic rods when the rotating arms are in a horizontal state. The island is kept in a vertical state due to the overall gravity. At this time, the bottom end of the core drill bit and the bottom end of the wheel are on the same horizontal plane, that is, the core drill bit and the asphalt road are aligned. When the cam is in contact with the stopper, the annular block gradually approaches the top of the stopper during the rotation of the rotating arm. When the bottom end of the annular block abuts the top of the stopper, the island and the connecting tube are still rotating and descending, while the annular block is restricted relative to the connecting tube and rises along the second slide groove and finally rises to the top of the second slide groove. The circular block moves to the top inclined section of the wedge plate, and the rotating rod rotates under the force of the coil spring, so that the ball head is separated from the core drill bit and the third slot. At this time, the operator observes and manually adjusts the verticality of the island. After the adjustment is completed, the island and the rotating part of the rotating arm are locked by the locking buckle, and the drilling sampling is ready.
[0019] Step 2: Turn the block to a horizontal state, use an external remote control to synchronously start the second motor and the micro water pump, the second motor rotates to drive the rotating shaft and the core drill bit to rotate, and at the same time the micro water pump pumps the cooling water in the external water tank into the water inlet through the hose and finally sprays it to the outer wall of the core drill bit through the water outlet of the ball head at the end of the pipeline, start the first motor, the first motor drives the screw to rotate and can push the sleeve, the cross and the sliding cylinder to slide downward along the island, which can push the connecting tube and the core drill bit to move downward, so that the core drill bit can drill and sample the asphalt road. As the first motor rotates, the core drill bit continues to descend to drill the road surface and collect the asphalt block sample into the internal cavity of the core drill bit. As the core drill bit rotates, the cooling water can also be evenly distributed on the outer wall of the core drill bit and the asphalt road surface;
[0020] Step 3: When the core drill bit reaches the maximum drilling depth, the bottom end of the annular block abuts against the top of the horizontal stop block, the second motor and the micro water pump stop, the core drill bit stops drilling, and the cooling water also stops. At this time, the asphalt block sample has been stored in the internal cavity of the core drill bit, and a small amount of soil has also been stored at the bottom of the core drill bit. The first motor is reversed, driving the screw to reverse so that the sleeve, cross and sliding cylinder slide upward along the island, which can push the connecting tube and the core drill bit upward, thereby leaving the asphalt road and carrying the asphalt block sample out;
[0021] Step 4: Control the extension of the telescopic ends of the two electric telescopic rods, drive the two rotating arms to rotate around the column, and stop the electric telescopic rods when the rotating arms are in a vertical state. At this time, control the third motor to rotate and drive the first collecting bucket and the second collecting bucket to rotate synchronously, so that the second collecting bucket is facing the bottom opening of the core drill bit, control the electric slider to slide downward along the first slide groove, drive the Z-shaped slider to slide downward and abut the top of the annular block, and continue to push the annular block to slide downward along the second slide groove. During the descent of the annular block, the circular block is acted upon by the force of the inclined section at the top of the wedge plate to push the rotating rod to rotate, so that the ball head passes through the top of the third slot and enters the internal cavity of the core drill bit. At this time, the three ball heads and the rotating rod continue to descend with the annular block, and the circular block maintains the ball head due to the continuous action of the vertical section of the wedge plate The asphalt block sample is located inside the core drill bit and pushes the asphalt block sample down. When the asphalt block sample descends, it first pushes the soil at the bottom down and falls off from the core drill bit and falls into the second collecting bucket. The third motor is controlled to rotate, driving the second collecting bucket and the soil to rotate to the second discharge hole and fall through the discharge nozzle. The third motor is reversed to make the first collecting bucket rotate to the bottom of the core drill bit. As the annular block continues to push to the bottom of the second chute, most of the asphalt block sample separates from the core drill bit. At this time, the sample can fall into the first collecting bucket. If it sticks, it can be taken out manually. The third motor is controlled to rotate again to drive the first collecting bucket and the sample to the top of the first discharge hole, so that the sample falls into the sampling box. The sampling box and the sample can be taken out by pulling out the sliding seat. The above operation can be repeated for sampling again.
[0022] Step 5: For sampling of some roads with high viscosity, a circular scraper and a matching base and steel wire can be slidably installed in the core drill bit. Before and during sampling, the circular scraper moves with the core drill bit. Due to the bendable and deformable ability of the steel wire, the circular scraper is adsorbed on the top of the internal cavity of the core drill bit through the magnet at the top during sampling and movement. When cutting, the three ball heads are transferred into the internal cavity of the core drill bit through the top of the third slot and finally connected to the three hemispherical slots. With the above operation, the annular block descends, driving the ball head and the circular scraper to descend. At this time, the circular scraper can scrape off the debris attached to the inner wall of the core drill bit.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] The present invention provides an annular block and a rotating rod. During the sampling stage, the annular block is pushed by the stop block to move to the top of the second slide groove, and the circular block moves to the inclined section at the top of the wedge plate. The rotating rod is rotated by the force of the coil spring, so that the ball head is separated from the core drill bit and the third slot, so that the core drill bit is not affected by the ball head when rotating and sampling. At the same time, the ball head is located outside the core drill bit and can be sprayed with cooling water synchronously when the core drill bit is drilling and sampling, so as to cool the core drill bit and prevent the friction from generating high temperature and melting the asphalt, which will adversely affect the detection accuracy of the asphalt block sample. At the same time, when the asphalt is prevented from melting, the asphalt block sample can be prevented from sticking to the inside of the core drill bit, which facilitates subsequent unloading operations. In the unloading process after the sampling is completed, the annular block is pushed by the Z-shaped slider, and the circular block is pushed by the force of the inclined section at the top of the wedge plate to rotate the rotating rod, so that the ball head passes through the top of the third slot and enters the internal cavity of the core drill bit, thereby pushing the asphalt block sample down and out of the core drill bit, which can be very convenient and automatic unloading, and has a positive improvement in the convenience and efficiency of sampling.
[0025] The present invention provides a first motor, which drives the sliding cylinder to rise and fall through a combination of a screw rod and a sleeve. When sampling, the working time of the first motor can be controlled to sample asphalt roads of different sampling depths.
[0026] The present invention provides a core drill bit and a circular scraper. The core drill bit is a drill bit with a hollow interior and wear-resistant teeth installed at the bottom end. The sample is stored in the cavity while drilling. When sampling some roads with high viscosity and many impurities, the circular scraper can be slidably installed in the core drill bit. Through the cooperation of the hemispherical groove and the ball head, when the sample is pushed down through the annular block and the ball head, the circular scraper is driven to descend synchronously, which can scrape off the sticky substances on the inner wall of the core drill bit, preventing the sticky substances from accumulating on the inner wall of the core drill bit and affecting the normal operation in future use. It can also prevent the internal sticky substances from being collected into the sampling box and affecting the detection results when sampling different roads next time.
[0027] The present invention provides a third motor, which drives the first collecting hopper and the second collecting hopper to rotate and switch positions. The bottom ends of the first collecting hopper and the second collecting hopper are both in contact with the top end of the cone, so that the soil can be fed into the second collecting hopper and directly discharged from the second discharge hole and the discharge nozzle, while the asphalt block sample and a small amount of soil are fed into the first collecting hopper and rotated to the first discharge hole for collection through the sampling box. At this time, the asphalt block sample in the sampling box contains less soil, which greatly reduces the sorting pressure and improves the subsequent detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the overall structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0029] Figure 2 This is a schematic diagram of the sampling state of a core drill bit of an asphalt paved road sampling and investigation device proposed by the present invention;
[0030] Figure 3 This is a schematic diagram of the vertical state of the rotating arm of the asphalt paved road sampling and investigation device proposed by the present invention;
[0031] Figure 4 This is a schematic diagram of the horizontal state of the rotating arm of the asphalt paved road sampling and investigation device proposed by the present invention;
[0032] Figure 5 This is a schematic diagram of the descending state of the annular block of the asphalt paved road sampling and investigation device proposed by the present invention;
[0033] Figure 6 This is a schematic diagram of the Z-shaped slider structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0034] Figure 7 This is a schematic diagram of the island structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0035] Figure 8 This is a schematic diagram of the sliding cylinder structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0036] Figure 9 This is an expanded diagram of the connecting tube and core drill bit structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0037] Figure 10 This is an expanded view of the connecting tube and T-shaped sliding rod structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0038] Figure 11 This is a cross-sectional view of a core drill bit of an asphalt paved road sampling and investigation device proposed by the present invention;
[0039] Figure 12 This is a schematic diagram of the circular scraper structure of an asphalt paved road sampling and investigation device proposed by the present invention;
[0040] Figure 13 This is a schematic diagram of the mounting platform and the round table structure of the asphalt paved road sampling and investigation device proposed by the present invention;
[0041] Figure 14 This is a schematic diagram of the pipeline structure of an asphalt paved road sampling and investigation device proposed by the present invention.
[0042] In the figure: 1, frame; 101, wheel; 2, connecting beam; 201, stopper; 3, column; 4, rotating arm; 41, first slide; 42, Z-shaped slider; 5, island; 51, fixed frame; 52, first motor; 6, sliding cylinder; 61, cross; 7, connecting cylinder; 71, wedge plate; 72, second slide; 8, core drill bit; 81, third slot; 9, rotating shaft; 10, T-shaped slide; 1001, steel wire; 11, ring block; 12, Rotating rod; 121, round block; 122, ball head; 13, water inlet; 131, hose; 132, pipeline; 14, round scraper; 141, base; 142, hemispherical groove; 15, electric telescopic rod; 16, mounting table; 17, round table; 171, first discharge hole; 172, second discharge hole; 18, third motor; 181, first collecting hopper; 182, second collecting hopper; 19, fixing rod; 20, sliding seat; 2001, sampling box. DETAILED DESCRIPTION
[0043] 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.
[0044] Reference Figure 1-14 , an asphalt paved road sampling and investigation device, including a frame 1 and a core drill bit 8, two parallel connecting beams 2 are fixedly connected between the frames 1, L-shaped stoppers 201 are rotatably connected to the opposite surfaces of one side of the two connecting beams 2, a column 3 is fixedly installed in the middle of the connecting beam 2, and a rotating arm 4 is rotatably connected to the opposite surfaces of the tops of the two columns 3, and an island 5 is rotatably connected to the ends of the two rotating arms 4. A sliding cylinder 6 with a top opening is slidably connected to the middle of the island 5 through a guide block, a cross 61 is fixedly connected to the top opening of the sliding cylinder 6, the bottom end of the sliding cylinder 6 passes through the bottom end of the island 5 and is fixedly connected to a connecting cylinder 7, and the bottom of the connecting cylinder 7 is rotatably connected to the core drill bit 8;
[0045] The top of the core drill bit 8 is fixedly connected to a rotating shaft 9 sleeved inside the connecting cylinder 7. A second motor is fixedly installed inside the sliding cylinder 6. The output shaft of the second motor is fixedly connected to the top of the rotating shaft 9. A cavity is opened inside the core drill bit 8. Three third slots 81 are evenly opened on the side wall of the core drill bit 8. The top of the third slot 81 is a circular structure.
[0046] Three evenly distributed wedge plates 71 are fixedly connected to the top of the connecting tube 7, and the three wedge plates 71 correspond to the positions of the three third slots 81. Three evenly distributed second slide grooves 72 are opened at the bottom of the connecting tube 7, and a T-shaped slide bar 10 is slidably connected in the second slide groove 72. An annular block 11 is fixedly connected to the end of the three T-shaped slide bars 10, and three evenly distributed rotating rods 12 are rotatably connected to the annular block 11. The three rotating rods 12 correspond to the positions of the three wedge plates 71, and a coil spring is provided on the rotating part of the rotating rod 12 and the annular block 11. The rotating part between the stopper 201 and the connecting beam 2 can only rotate ninety degrees, so that the stopper 201 can switch between vertical and horizontal states. The core drill bit 8 is a drill bit with a hollow interior and wear-resistant teeth installed at the bottom. The sample is stored in the cavity while drilling. The side walls of the traditional core drill bit 8 are closed, which is not convenient for unloading after sampling and requires external knocking. Especially when drilling, high temperature is generated, asphalt is easily melted and becomes sticky, making it more difficult to unload the sample. During the sampling stage, the annular block 11 is pushed by the stopper 201 to move to the top of the second slide groove 72, and the circular block 121 moves to the top inclined section of the wedge plate 71. The rotating rod 12 is rotated by the force of the coil spring, so that the ball head 122 is separated from the core drill bit 8 and the third slot 81, so that the core drill bit 8 is not affected by the ball head 122 when rotating for sampling. The ball head 122 is located outside the core drill bit 8 and can spray cooling water synchronously when the core drill bit 8 is drilling and sampling, so as to cool the core drill bit 8 and prevent the friction from generating high temperature and melting the asphalt, which may adversely affect the detection accuracy of the asphalt block sample. At the same time, the asphalt block sample can be prevented from sticking to the inside of the core drill bit 8 when the asphalt is prevented from melting, which is convenient for subsequent unloading operations. In the unloading process after the sampling is completed, the annular block 11 is pushed by the Z-shaped slider 42, and the circular block 121 is pushed by the inclined section of the top of the wedge plate 71 to rotate the rotating rod 12, so that the ball head 122 is rotated into the internal cavity of the core drill bit 8 through the top of the third slot 81, thereby pushing the asphalt block sample down and out of the core drill bit 8, which can be very convenient and automatic unloading, and has a positive effect on the convenience and efficiency of sampling.
[0047] As a technical optimization solution of the present invention, a first chute 41 is formed on the side wall of the rotating arm 4 on the side closest to the island 5. An electric slider is slidably connected to the first chute 41, and a Z-shaped slider 42 is fixedly connected to the outer wall of the electric slider. The electric slider can drive the Z-shaped slider 42 to slide within the first chute 41, facilitating the unloading of the annular block 11. After unloading is completed, the electric slider drives the Z-shaped slider 42 to return to its original position.
[0048] As a technical optimization solution of the present invention, the top of the island 5 is fixedly connected to a fixing frame 51, and a first motor 52 is fixedly mounted on the top of the fixing frame 51. The output end of the first motor 52 is fixedly connected to a screw, and the outer wall of the screw is threadedly connected to a sleeve fixedly connected to the top of the cross 61. The first motor 52 drives the sliding cylinder 6 up and down through the screw and sleeve combination. During sampling, the operating time of the first motor 52 can be controlled to sample the asphalt road at different sampling depths.
[0049] As a technical optimization solution of the present invention, a circular block 121 is fixedly connected to the top of the rotating rod 12, and a ball head 122 is fixedly connected to the bottom of the rotating rod 12. The rotation of the rotating rod 12 is controlled by the circular block 121 and the wedge plate 71. The wedge plate 71 has a tilted top and a vertical middle and bottom structure.
[0050] As a technical optimization solution of the present invention, a water inlet 13 is installed in the middle of the rotating rod 12. Below the water inlet 13, a pipe 132 is opened inside the rotating rod 12 and connected to the water inlet 13. The end of the pipe 132 is connected to several water outlets opened on the ball head 122. The inlet end of the water inlet 13 is connected to the micro water pump built into the island 5 through a hose 131. During the sampling operation, the end of the frame 1 can carry a water tank, and the inlet pipe of the micro water pump is connected to the water tank. When drilling and sampling, the micro water pump can be activated to allow cooling water to cool the core drill bit 8 through the water inlet 13, pipe 132, and the water outlet of the ball head 122.
[0051] As a technical optimization solution of the present invention, wheels 101 are rotatably connected to both sides of the vehicle frame 1. The micro water pump and the second motor are both wirelessly connected via an external remote control, and the micro water pump and the second motor operate synchronously. Wheels 101 facilitate the movement of the vehicle frame 1. When the vehicle frame 1 moves to the asphalt road for sampling, wheels 101 are locked to prevent the vehicle frame 1 from shifting while the core drill bit 8 is drilling.
[0052] As a technical optimization solution of the present invention, a circular scraper 14 is slidably connected to the top of the internal cavity of the core drill bit 8. Three steel wires 1001 are evenly connected to the top of the circular scraper 14. The three steel wires 1001 pass through the top of the core drill bit 8 and the bottom of the connecting tube 7, where they are fixedly connected to three T-shaped slide bars 10. The bottom of the circular scraper 14 is fixedly connected to a base 141, and the sidewall of the base 141 is evenly defined with three hemispherical grooves 142. When sampling roads with high viscosity and high impurities, the hemispherical grooves 142 cooperate with the ball head 122. As the sample is pushed down through the annular block 11 and the ball head 122, the circular scraper 14 is simultaneously lowered, scraping off sticky materials from the inner wall of the core drill bit 8. This prevents the accumulation of sticky materials on the inner wall of the core drill bit 8, which could affect its normal operation during future use. It also prevents internal sticky materials from being collected in the sampling box 2001 and affecting the test results when sampling a different road next time.
[0053] As a technical optimization solution of the present invention, an electric telescopic rod 15 is rotatably connected to the connecting beam 2 between the stopper 201 and the column 3 via a bracket. The telescopic end of the electric telescopic rod 15 is rotatably connected to the middle side wall of the rotating arm 4. The electric telescopic rod 15 retracts and drives the rotating arm 4 to rotate, thereby switching the core drill bit 8 between the sampling state and the material feeding state.
[0054] As a technical optimization solution of the present invention, a mounting platform 16 is fixedly installed on the two connecting beams 2 on one side of the column 3, and a round table 17 is fixedly connected to the top of the mounting platform 16. A first discharge hole 171 and a second discharge hole 172 are opened on the top of the round table 17. A third motor 18 is fixedly installed on the bottom of the mounting platform 16, and the output end of the third motor 18 is connected to the round table 17. The output end of the third motor 18 is fixedly connected to a first collecting bucket 181 and a second collecting bucket 182 that are symmetrical to each other. Two fixed rods 19 are fixedly connected to the top of the mounting platform 16 away from the island platform 5. A sliding seat 20 is slidably connected to the two fixed rods 19, and a sampling box 2001 is placed on the sliding seat 20. The first discharge hole 171 is opposite to the center of the two fixed rods 19, and the bottom end of the second discharge hole 172 is fixedly connected to a discharge nozzle. Since it is easy to collect impurities such as soil under the asphalt into the lowest end of the core drill bit 8 when sampling the asphalt pavement, sorting is required before the asphalt block sample can be tested. The third motor 18 drives the first collecting bucket 181 and the second collecting bucket 182 to rotate and switch positions. The bottom ends of the first collecting bucket 181 and the second collecting bucket 182 are both in contact with the top of the frustum 17. The soil can be discharged into the second collecting bucket 182 and directly discharged from the second discharge hole 172 and the discharge nozzle, while the asphalt block sample and a small amount of soil are fed into the first collecting bucket 181 and rotated to the first discharge hole 171 for collection through the sampling box 2001. At this time, the asphalt block sample in the sampling box 2001 contains less soil, which greatly reduces the sorting pressure and improves the subsequent detection efficiency.
[0055] When the present invention is in use, when the operator is sampling and surveying the asphalt road, he first uses the towing equipment to drag the frame 1 to the sampling road surface, locks the wheel 101, and rotates the block 201 to a vertical state. At this time, the rotating arm 4 is in a vertical state, that is, the island 5 is located above the round table 17. In the case of initial use, the annular block 11 is not restricted and is in any position of the second slide groove 72. The telescopic ends of the two electric telescopic rods 15 are controlled to retract, driving the two rotating arms 4 to rotate around the column 3 until the rotating arms 4 are in a horizontal state. The electric telescopic rods 15 are stopped, and the island 5 is kept in a vertical state by the overall gravity. At this time, the bottom end of the core drill bit 8 and the bottom end of the wheel 101 are on the same horizontal plane, that is, the core drill The head 8 contacts the asphalt road. During the rotation of the rotating arm 4, the annular block 11 gradually approaches the top of the stop block 201. When the bottom end of the annular block 11 abuts the top of the stop block 201, the island 5 and the connecting tube 7 are still rotating and descending, and the annular block 11 is restricted relative to the connecting tube 7 and rises along the second slide groove 72 and finally rises to the top of the second slide groove 72. The circular block 121 moves to the top inclined section of the wedge plate 71. The rotating rod 12 is rotated by the force of the coil spring so that the ball head 122 disengages from the core drill bit 8 and the third slot 81. At this time, the operator observes and manually adjusts the verticality of the island 5. After the adjustment is completed, the rotating part of the island 5 and the rotating arm 4 is locked by the locking buckle, and the drilling sampling preparation is completed.
[0056] Rotate the block 201 to a horizontal state, and use an external remote control to synchronously start the second motor and the micro water pump. The rotation of the second motor drives the rotating shaft 9 and the core drill bit 8 to rotate. At the same time, the micro water pump pumps the cooling water in the external water tank into the water inlet 13 through the hose 131 and finally sprays it to the outer wall of the core drill bit 8 through the water outlet of the ball head 122 at the end of the pipeline 132. Start the first motor 52. The first motor 52 drives the screw to rotate and can push the sleeve, the cross 61 and the sliding cylinder 6 to slide downward along the island 5, which can push the connecting cylinder 7 and the core drill bit 8 to move downward, so that the core drill bit 8 can drill and sample the asphalt road. As the first motor 52 rotates, the core drill bit 8 continues to descend to drill the road surface and collect the asphalt block sample into the internal cavity of the core drill bit 8. As the core drill bit 8 rotates, the cooling water can also be evenly distributed on the outer wall of the core drill bit 8 and the asphalt road surface.
[0057] When the drilling depth of the core drill bit 8 reaches the maximum, the bottom end of the annular block 11 abuts against the top of the horizontal stop block 201, the second motor and the micro water pump are stopped, the core drill bit 8 stops drilling, and the cooling water is also stopped. At this time, the asphalt block sample has been stored in the internal cavity of the core drill bit 8, and a small amount of soil is also stored at the bottom of the core drill bit 8. The first motor 52 is reversed, driving the screw to reverse so that the sleeve, cross 61 and sliding cylinder 6 slide upward along the island 5, which can push the connecting cylinder 7 and the core drill bit 8 to move upward, thereby leaving the asphalt road and carrying the asphalt block sample out.
[0058] The telescopic ends of the two electric telescopic rods 15 are controlled to extend, driving the two rotating arms 4 to rotate around the column 3 until the electric telescopic rod 15 is stopped when the rotating arm 4 is in the vertical state. At this time, the third motor 18 is controlled to rotate to drive the first collecting bucket 181 and the second collecting bucket 182 to rotate synchronously, so that the second collecting bucket 182 is facing the bottom opening of the core drill bit 8, and the electric slider is controlled to slide downward along the first slide groove 41, driving the Z-shaped slider 42 to slide downward and abut against the top of the annular block 11, and continuously push the annular block 11 to slide downward along the second slide groove 72. During the descending process of the annular block 11, the circular block 121 is subjected to the force of the inclined section at the top of the wedge plate 71 to push the rotating rod 12 to rotate, so that the ball head 122 passes through the top of the third slot 81 and rotates into the internal cavity of the core drill bit 8. At this time, the three ball heads 122 and the rotating rod 12 continue to descend with the annular block 11, and the circular block 121 is continuously acted upon by the vertical section of the wedge plate 71 to maintain The ball head 122 is inside the core drill bit 8 and pushes the asphalt block sample down. When the asphalt block sample drops, it first pushes the soil at the bottom down and falls off from the core drill bit 8 and falls into the second collecting bucket 182. The third motor 18 is controlled to rotate, driving the second collecting bucket 182 and the soil to rotate to the second discharge hole 172 and fall through the discharge nozzle. The third motor 18 is reversed to make the first collecting bucket 181 rotate to the bottom of the core drill bit 8. As the annular block 11 continues to push to the bottom of the second chute 72, most of the asphalt block sample is separated from the core drill bit 8. At this time, the sample can fall into the first collecting bucket 181. If adhesion occurs, it can be taken out manually. The third motor 18 is controlled to rotate again to drive the first collecting bucket 181 and the sample to the top of the first discharge hole 171, so that the sample falls into the sampling box 2001. The sampling box 2001 and the sample can be taken out by pulling out the sliding seat 20. The above operation can be repeated for sampling again.
[0059] If sampling is to be done on some roads with higher viscosity, a circular scraper 14 and a matching base 141 and a steel wire 1001 can be slidably installed in the core drill bit 8. Before and during sampling, the circular scraper 14 moves with the core drill bit 8. Due to the bendable and deformable ability of the steel wire 1001, the circular scraper 14 is adsorbed on the top of the internal cavity of the core drill bit 8 through the magnet at the top during sampling and movement. When cutting, the three ball heads 122 are transferred into the internal cavity of the core drill bit 8 through the top of the third slot 81 and finally connected to the three hemispherical slots 142. With the above operation, the annular block 11 descends, driving the ball head 122 and the circular scraper 14 to descend. At this time, the circular scraper 14 can scrape off the debris attached to the inner wall of the core drill bit 8.
[0060] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.
[0061] The above 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 this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A sampling and surveying device for asphalt paved roads, comprising a frame (1) and a core drill bit (8), characterized in that: Two parallel connecting beams (2) are fixedly connected between the vehicle frames (1); an L-shaped stopper (201) is rotatably connected to opposite surfaces of one side of the two connecting beams (2); a column (3) is fixedly installed in the middle of the connecting beam (2); a rotating arm (4) is rotatably connected to opposite surfaces of the tops of the two columns (3); the ends of the two rotating arms (4) are rotatably connected to an island (5); a sliding cylinder (6) with a top opening is slidably connected to the middle of the island (5) through a guide block; a cross (61) is fixedly connected to the top opening of the sliding cylinder (6); the bottom end of the sliding cylinder (6) passes through the bottom end of the island (5) and is fixedly connected to a connecting cylinder (7); the bottom of the connecting cylinder (7) is rotatably connected to a core drill bit (8); The top of the core drill bit (8) is fixedly connected to a rotating shaft (9) sleeved inside the connecting cylinder (7), a second motor is fixedly installed inside the sliding cylinder (6), the output shaft of the second motor is fixedly connected to the top of the rotating shaft (9), a cavity is opened inside the core drill bit (8), and three third slots (81) are evenly opened on the side wall of the core drill bit (8), and the top of the third slot (81) is a circular structure; The top of the connecting tube (7) is fixedly connected with three evenly distributed wedge plates (71), and the three wedge plates (71) correspond to the positions of the three third slots (81). The bottom of the connecting tube (7) is provided with three evenly distributed second sliding grooves (72), and a T-shaped sliding rod (10) is slidably connected in the second sliding groove (72). The ends of the three T-shaped sliding rods (10) are fixedly connected with an annular block (11), and the annular block (11) is rotatably connected with three evenly distributed rotating rods (12), and the three rotating rods (12) correspond to the positions of the three wedge plates (71). The rotating parts of the rotating rods (12) and the annular block (11) are provided with coil springs.
2. The asphalt paved road sampling and investigation device according to claim 1, characterized in that: A first sliding groove (41) is provided on the side wall of the rotating arm (4) close to the island platform (5), an electric slider is slidably connected in the first sliding groove (41), and a Z-shaped slider (42) is fixedly connected to the outer side wall of the electric slider.
3. The asphalt paved road sampling and investigation device according to claim 1, characterized in that: The top of the island (5) is fixedly connected to a fixing frame (51), the top of the fixing frame (51) is fixedly mounted with a first motor (52), the output end of the first motor (52) is fixedly connected to a screw, and the outer wall of the screw is threadedly connected to a sleeve fixedly connected to the top of the cross (61).
4. The asphalt paved road sampling and investigation device according to claim 1, characterized in that: The top end of the rotating rod (12) is fixedly connected to a circular block (121), and the bottom end of the rotating rod (12) is fixedly connected to a ball head (122).
5. The asphalt paved road sampling and investigation device according to claim 4, characterized in that: A water inlet (13) is installed in the middle of the rotating rod (12), and a pipe (132) communicating with the water inlet (13) is provided inside the rotating rod (12) below the water inlet (13). The end of the pipe (132) is connected to a plurality of water outlets provided on the ball head (122), and the inlet end of the water inlet (13) is connected to a micro water pump built into the island (5) through a hose (131).
6. The asphalt paved road sampling and investigation device according to claim 5, characterized in that: Wheels (101) are rotatably connected to both sides of the vehicle frame (1); the micro water pump and the second motor are both wirelessly connected via an external remote controller; the micro water pump and the second motor operate synchronously.
7. The asphalt paved road sampling and investigation device according to claim 1, characterized in that: A circular scraper (14) is slidably connected to the top of the inner cavity of the core drill bit (8), and three steel wires (1001) are evenly connected to the top of the circular scraper (14). The three steel wires (1001) pass through the top of the core drill bit (8) and the bottom of the connecting tube (7) and are fixedly connected to three T-shaped sliding rods (10). The bottom of the circular scraper (14) is fixedly connected to a base (141), and the side wall of the base (141) is evenly provided with three hemispherical grooves (142).
8. The asphalt paved road sampling and investigation device according to claim 1, characterized in that: An electric telescopic rod (15) is rotatably connected to the connecting beam (2) between the stopper (201) and the column (3) via a bracket, and the telescopic end of the electric telescopic rod (15) is rotatably connected to the middle side wall of the rotating arm (4).
9. The asphalt paved road sampling and investigation device according to claim 1, characterized in that: A mounting platform (16) is fixedly installed on the two connecting beams (2) on one side of the column (3), the top of the mounting platform (16) is fixedly connected to a round platform (17), the top of the round platform (17) is provided with a first discharge hole (171) and a second discharge hole (172), the bottom of the mounting platform (16) is fixedly installed with a third motor (18), the output end of the third motor (18) passes through the round platform (17), the output end of the third motor (18) is fixedly connected to a first collecting bucket (181) and a second collecting bucket (182) that are symmetrical to each other, the top of the mounting platform (16) is fixedly connected to two fixed rods (19) on the side away from the island (5), the two fixed rods (19) are slidably connected to a sliding seat (20), a sampling box (2001) is placed on the sliding seat (20), the first discharge hole (171) is opposite to the center of the two fixed rods (19), and the bottom end of the second discharge hole (172) is fixedly connected to a discharge nozzle.
10. The method for using the asphalt paved road sampling and investigation device according to claim 9, characterized in that: The specific steps are as follows: Step 1: First, use the towing equipment to drag the frame (1) onto the sampling road surface, lock the wheel (101), and rotate the block (201) to a vertical state. At this time, the rotating arm (4) is in a vertical state, that is, the island (5) is located above the round table (17). In the case of initial use, the annular block (11) is not restricted and is located at any position of the second slide groove (72). The telescopic ends of the two electric telescopic rods (15) are controlled to retract, driving the two rotating arms (4) to rotate around the column (3) until the rotating arm (4) is in a horizontal state. The electric telescopic rods (15) are stopped, and the island (5) is kept in a vertical state due to the overall gravity. At this time, the bottom end of the core drill bit (8) and the bottom end of the wheel (101) are on the same horizontal plane, that is, the core drill bit (8) is in contact with the asphalt road. During the rotation of the arm (4), the annular block (11) gradually approaches the top of the stopper (201). When the bottom of the annular block (11) abuts against the top of the stopper (201), the island (5) and the connecting tube (7) are still rotating and descending, while the annular block (11) is limited relative to the connecting tube (7) and rises along the second slide groove (72) and finally rises to the top of the second slide groove (72). The circular block (121) moves to the top inclined section of the wedge plate (71). The rotating rod (12) is rotated by the force of the coil spring so that the ball head (122) is separated from the core drill bit (8) and the third slot (81). At this time, the operator observes and manually adjusts the verticality of the island (5). After the adjustment is completed, the island (5) and the rotating part of the rotating arm (4) are locked by the locking buckle, and the drilling sampling preparation is completed; Step 2: Rotate the block (201) to a horizontal state, use an external remote control to synchronously start the second motor and the micro water pump, the second motor rotates to drive the rotating shaft (9) and the core drill bit (8) to rotate, and at the same time the micro water pump pumps the cooling water in the external water tank into the water inlet (13) through the hose (131) and finally sprays the cooling water through the end of the pipe (132) through the water outlet of the ball head (122) to the outer wall of the core drill bit (8), and starts the first motor (52), which drives the screw to rotate and can push the sleeve The cylinder, the cross (61) and the sliding cylinder (6) slide downward along the island (5), thereby pushing the connecting cylinder (7) and the core drill bit (8) to move downward, so that the core drill bit (8) can drill holes and take samples on the asphalt road. As the first motor (52) rotates, the core drill bit (8) continues to descend to drill the road surface and collect the asphalt block sample into the inner cavity of the core drill bit (8). As the core drill bit (8) rotates, the cooling water can also be evenly distributed on the outer wall of the core drill bit (8) and the asphalt road surface. Step 3: When the core drill bit (8) reaches the maximum drilling depth, the bottom end of the annular block (11) abuts against the top end of the horizontal stopper (201), the second motor and the micro water pump are stopped, the core drill bit (8) stops drilling, and the cooling water is also stopped. At this time, the asphalt block sample has been stored in the internal cavity of the core drill bit (8), and a small amount of soil is also stored at the bottom of the core drill bit (8). The first motor (52) is reversed to drive the screw to reverse so that the sleeve, the cross (61) and the sliding cylinder (6) slide upward along the island (5), thereby pushing the connecting cylinder (7) and the core drill bit (8) to move upward, thereby leaving the asphalt road and carrying the asphalt block sample out; Step 4: Control the telescopic ends of the two electric telescopic rods (15) to extend, drive the two rotating arms (4) to rotate around the column (3), and stop the electric telescopic rods (15) until the rotating arms (4) are in a vertical state. At this time, control the third motor (18) to rotate and drive the first collecting bucket (181) and the second collecting bucket (182) to rotate synchronously, so that the second collecting bucket (182) is facing the bottom opening of the core drill bit (8), and control the electric slider to slide downward along the first slide groove (41), driving the Z-shaped slider (42) to slide downward. The circular block (11) abuts against the top of the circular block (11) and continuously pushes the circular block (11) to slide downward along the second slide groove (72). During the descent of the circular block (11), the circular block (121) is driven by the inclined section of the top of the wedge plate (71) to push the rotating rod (12) to rotate, so that the ball head (122) passes through the top of the third slot (81) and rotates into the internal cavity of the core drill bit (8). At this time, the three ball heads (122) and the rotating rod (12) continue to descend with the circular block (11), and the circular block (121) is vertically moved by the wedge plate (71). The continuous action of the segment keeps the ball head (122) inside the core drill bit (8) and pushes the asphalt block sample down. When the asphalt block sample drops, it first pushes the soil at the bottom to drop down and fall off from the core drill bit (8) and fall into the second collecting bucket (182). The third motor (18) is controlled to rotate, driving the second collecting bucket (182) and the soil to rotate to the second discharge hole (172) and fall through the discharge nozzle. The third motor (18) is reversed to make the first collecting bucket (181) rotate to the bottom of the core drill bit (8). As the annular block ( 11) is continued to be pushed to the bottom of the second chute (72), and most of the main body of the asphalt block sample is separated from the core drill bit (8). At this time, the sample can fall into the first collecting bucket (181). If adhesion occurs, it can be taken out manually, and the third motor (18) is controlled to rotate and drive the first collecting bucket (181) and the sample to the top of the first discharge hole (171), so that the sample falls into the sampling box (2001). The sliding seat (20) can be pulled out to take out the sampling box (2001) and the sample. Repeat the above operation when sampling again; Step 5: For sampling of some roads with high viscosity, a circular scraper (14) and a matching base (141) and a steel wire (1001) can be slidably installed in the core drill bit (8). Before sampling and during sampling, the circular scraper (14) moves with the core drill bit (8). Due to the bendable deformation ability of the steel wire (1001), the circular scraper (14) is adsorbed on the top of the internal cavity of the core drill bit (8) through the magnet at the top during sampling and moving. When cutting, the three ball heads (122) are transferred into the internal cavity of the core drill bit (8) through the top of the third slot (81) and finally connected to the three hemispherical slots (142). With the above operation, the annular block (11) descends, driving the ball head (122) and the circular scraper (14) to descend. At this time, the circular scraper (14) can scrape off the debris attached to the inner wall of the core drill bit (8).