A pavement asphalt detection sampling device

Abstract

The application discloses a kind of road surface asphalt detection sampling devices, including mobile trolley, cylindrical rod, T-shaped frame, spline shaft sleeve, sampling cylinder, T-shaped plate and spline shaft rod, by driving spline shaft rod rotation, reciprocating movement of T-shaped frame is realized by the transmission of belt pulley and threaded rod, further drive sampling cylinder to move and drill on road surface asphalt, simultaneously, the device is also equipped with cooling mechanism, utilize water storage tank, inlet pipe, drain pipe and spray head, water is sprayed to sampling cylinder and internal asphalt sample during drilling process, reduce the influence of friction heat on sampling work, prolong the service life of drill bit and sampling cylinder, in addition, the discharging mechanism on spline shaft rod can automatically eject asphalt sample in sampling cylinder, reduce personnel labor intensity, improve sampling efficiency, the present application is reasonable in structure, easy to operate, can effectively improve the automation level and quality of road surface asphalt detection sampling.

Description

Technical Field

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

[0002] With the acceleration of urbanization and the booming transportation industry, the importance of road infrastructure construction and maintenance has become increasingly prominent. Asphalt pavement plays a crucial role in road construction due to its excellent smoothness, anti-skid properties, and relatively low construction costs. However, the quality of asphalt pavement is directly related to the road's service life, driving safety, and smooth traffic flow. To ensure that road construction quality meets standards and to promptly identify and address potential pavement problems, asphalt pavement inspection is particularly critical. During the asphalt pavement inspection process, sampling is the foundation for obtaining accurate test data. Traditional asphalt sampling methods have many shortcomings.

[0003] The existing Chinese patent with publication number CN111458182B includes a core drilling machine base, a support frame arranged on the base, a drilling rig arranged on the support frame, and a control mechanism for driving the drilling rig to move up and down. The drilling rig includes a sampling barrel and a motor that drives the sampling barrel to rotate by rotating a belt. A water bag for cooling the interior of the sampling barrel is provided in the sampling barrel. A pushing cylinder is also provided on the sampling barrel. The sampling barrel is rotatably arranged on the outside of the piston rod of the pushing cylinder. The piston rod of the pushing cylinder penetrates into the sampling barrel and is connected to an extrusion piece for crushing the water bag.

[0004] When the above device is in use, the turntable is rotated to drive the sampling tube to move downward, so that the sampling tube can take samples downward. However, in actual use, personnel are required to manually rotate the turntable to prompt the sampling tube to take samples, which increases the workload of construction personnel and is time-consuming and labor-intensive. Therefore, it is difficult to automatically drive the sampling tube to move for sampling.

[0005] For this purpose, we proposed a road asphalt detection sampling device. Summary of the Invention

[0006] The purpose of the present invention is to provide a road asphalt detection sampling device, which has the advantage of automatically driving a sampling cylinder for mobile sampling and solves the problems in the background technology.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a road asphalt detection sampling device, which comprises a mobile trolley moving on the road surface, two columnar rods are fixedly connected to the mobile trolley at symmetrical positions on both sides, a T-shaped frame for reciprocating movement is sleeved on the outer contour of the two columnar rods, a spline shaft sleeve is penetratingly and fixedly connected to the end of the T-shaped frame away from the columnar rod, a sampling cylinder for sampling road asphalt is fixedly connected to the outer contour of the bottom end of the spline shaft sleeve, a T-shaped plate is fixedly connected to the end of the two columnar rods, a spline shaft rod rotating driven by a power mechanism is penetratingly and fixedly connected to the end of the T-shaped plate away from the columnar rod, and the inner wall of the spline shaft sleeve is penetratingly and movably connected with the spline shaft rod, and a sampling mechanism for driving the sampling cylinder to reciprocatingly move and drilling road asphalt is arranged on the T-shaped plate.

[0008] The mobile trolley (1) is provided with a mounting hole (101), the inner wall of the mounting hole (101) is fixedly connected with an annular shell (14), the inner wall of the annular shell (14) is penetratingly and fixedly connected with a plurality of annularly arranged spray heads (15), and the mobile trolley (1) is provided with a cooling mechanism for spraying water on the sampling cylinder (5) and the internal asphalt sample through the spray heads (15).

[0009] Preferably, the sampling mechanism comprises a threaded rod penetratingly and fixedly connected to the T-shaped plate for driving the T-shaped frame to reciprocatingly move, a threaded sleeve is penetratingly and fixedly connected to the T-shaped frame at a corresponding position of the threaded rod, and the inner wall of the threaded sleeve is penetratingly and screw-connected with the threaded rod.

[0010] Preferably, the end of the spline shaft rod is coaxially fixedly connected with a second belt pulley for driving the threaded rod to fixedly rotate, a first belt pulley is coaxially fixedly connected to the end of the threaded rod at a corresponding position of the second belt pulley, and a transmission belt for driving the spline shaft rod and the threaded rod to synchronously rotate is sleeved in the sliding groove on the outer contour of the first belt pulley and the second belt pulley.

[0011] Preferably, a plurality of annularly arranged through holes are formed in the outer contour of the sampling cylinder close to the bottom end.

[0012] Preferably, the cooling mechanism comprises a water storage tank fixedly connected to the end of the mobile trolley away from the columnar rod for storing water source, a liquid inlet pipe penetratingly and fixedly connected to the water storage tank for conveying the water source to the inside of the sampling cylinder, and the end of the liquid inlet pipe away from the water storage tank is penetratingly and fixedly connected to the inner wall of the sampling cylinder, a liquid outlet pipe penetratingly and fixedly connected to the outer contour of the sampling cylinder close to the end of the liquid inlet pipe for discharging the water source to the inside of the annular shell and the spray head for spraying, and the end of the liquid outlet pipe away from the sampling cylinder is penetratingly and fixedly connected to the inside of the annular shell.

[0013] Preferably, the spline shaft rod is fixedly connected with a piston plate on the outer contour near the bottom end for extracting and discharging the water source in the water storage tank, the inner wall of the liquid inlet pipe near one end of the sampling cylinder is fixedly connected with a one-way liquid inlet valve for quantitative extraction of the water source in the water storage tank, and the inner wall of the liquid outlet pipe near one end of the sampling cylinder is fixedly connected with a one-way liquid outlet valve for quantitative discharge of the water source in the sampling cylinder.

[0014] Preferably, the spline shaft rod is provided with a discharging mechanism for discharging the asphalt sample in the sampling cylinder, the discharging mechanism comprises a ejection block fixedly connected with the bottom end of the spline shaft rod for ejecting the asphalt sample in the sampling cylinder, and the outer contour of the sampling cylinder near the bottom end is fixedly connected with a one-way air outlet valve for discharging the gas at the bottom end of the sampling cylinder.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] I. During sampling, the spline shaft rod drives the second pulley to rotate, the first pulley and the threaded rod are driven to rotate synchronously through the transmission belt, the T-shaped frame is driven to move stably along the cylindrical rod under the action of the threaded sleeve on the threaded rod, thereby driving the sampling cylinder to move, the radius of the first pulley is greater than that of the second pulley, and therefore the rotation speed of the threaded rod is slower than that of the spline shaft rod, so that the T-shaped frame can drive the sampling cylinder to move synchronously and slowly, avoiding the situation that the sampling cylinder moves too fast, which can sharply increase the friction between the sampling cylinder and the asphalt pavement, cause the motor to bear excessive load, result in shutdown of the sampling device, affect the normal progress of sampling work, increase equipment maintenance cost and downtime, and prolong the service life of the sampling device.

[0017] II. During drilling, the piston plate extracts the water in the water storage tank to the inside of the sampling cylinder along with the movement of the sampling cylinder, and uniformly sprays the water on the sampling cylinder and the asphalt sample through the spray head, which not only reduces the friction heat between the sampling cylinder and the asphalt pavement, prevents the asphalt from becoming too viscous or softened due to high temperature, thereby ensuring that the sampling cylinder can smoothly drill the sample and improving the sampling quality, but also avoids damage of the drill bit due to overheating, prolongs the service life of the drill bit and the sampling cylinder, and reduces the maintenance cost of the equipment.

[0018] III. When the sampling cylinder completes drilling and moves upward to reset, the piston plate discharges the air at the bottom end of the sampling cylinder through the one-way air outlet valve, when the sampling cylinder moves to the limit position, the ejection block abuts against the asphalt sample in the sampling cylinder, the surface of the ejection block is provided with anti-skid lines to increase the friction between the ejection block and the surface of the asphalt sample, and the spline shaft rod drives the ejection block to synchronously rotate around the axis, so that the ejection block can drive the asphalt sample to rotate and separate from the inner wall of the sampling cylinder and push the asphalt sample to move out of the inner wall of the sampling cylinder, realizing automatic discharging of the asphalt sample in the sampling cylinder, reducing the labor intensity of personnel, and improving the overall efficiency of the sampling work.

[0019] The cooperation of the above structure solves the problem that the existing device needs personnel to manually rotate the rotating disc to promote the sampling cylinder to sample, which increases the working strength of the construction personnel and is time-consuming and laborious, so it is difficult to automatically drive the sampling cylinder to move and sample. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the present application;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the present application; Figure 5 A schematic diagram of the structure in the present application;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the present application;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the present application;

[0028] In the figure: 1, mobile cart; 101, mounting hole; 2, cylindrical rod; 3, T-shaped frame; 4, spline shaft sleeve; 5, sampling cylinder; 501, through hole; 6, T-shaped plate; 7, spline shaft rod; 8, threaded sleeve; 9, threaded rod; 10, first pulley; 11, second pulley; 12, transmission belt; 14, annular housing; 15, nozzle; 16, water storage tank; 17, liquid inlet pipe; 18, liquid outlet pipe; 19, piston plate; 20, one-way liquid inlet valve; 21, one-way liquid outlet valve; 22, ejector block; 23, one-way exhaust valve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] Embodiment one:

[0031] Please refer to Figures 1 to 8 The application provides a technical scheme: a road asphalt detection sampling device, which comprises a mobile trolley 1 moving on a road surface, two columnar rods 2 are fixedly connected to symmetrical positions on the mobile trolley 1, a T-shaped frame 3 moving up and down is sleeved on the outer profiles of the two columnar rods 2, a spline shaft sleeve 4 is through and fixedly connected to the end of the T-shaped frame 3 away from the columnar rod 2 and rotates, a sampling cylinder 5 for sampling road asphalt is fixedly connected to the outer profile of the bottom end of the spline shaft sleeve 4, a T-shaped plate 6 is fixedly connected to the end of the two columnar rods 2, a spline shaft rod 7 driven by a power mechanism is through and fixedly connected to the end of the T-shaped plate 6 away from the columnar rod 2 and rotates, and the inner wall of the spline shaft sleeve 4 is through and connected to the spline shaft rod 7 and moves up and down, and the T-shaped plate 6 is provided with a sampling mechanism for driving the sampling cylinder 5 to move up and down and drill road asphalt;

[0032] The mobile trolley (1) is provided with a mounting hole (101), the inner wall of the mounting hole (101) is fixedly connected with an annular shell (14), the inner wall of the annular shell (14) is through and fixedly connected with a plurality of annularly arranged nozzles (15), and the mobile trolley (1) is provided with a cooling mechanism for spraying water on the sampling cylinder (5) and the internal asphalt sample through the nozzles (15).

[0033] In use, by setting the mobile cart 1, first the personnel pushes the mobile cart 1 to move to the sampling position on the road surface, improves the flexibility of the sampling device, through the column rod 2 provided on the mobile cart 1, the column rod 2 is fixed and supported on the mobile cart 1, through the T-shaped frame 3 provided on the column rod 2, and the column rod 2 supports the T-shaped frame 3, so that the T-shaped frame 3 can be connected to the column rod 2 on the outer contour of the column rod 2. The spline shaft sleeve 4 is provided on the T-shaped frame 3, and the spline shaft sleeve 4 is supported on the T-shaped frame 3, and the sampling cylinder 5 is provided on the spline shaft sleeve 4, and the sampling cylinder 5 is fixed and supported on the spline shaft sleeve 4, so that the sampling cylinder 5 is connected with the spline shaft sleeve 4, and the T-shaped plate 6 is provided on the column rod 2, and the T-shaped plate 6 can be fixed and supported on the column rod 2, and the spline shaft 7 is provided on the T-shaped plate 6, so that the spline shaft 7 can be connected to the T-shaped plate 6 on the T-shaped plate 6. The above power mechanism is the motor after being powered on, and the output shaft of the motor is coaxially connected with the spline shaft 7, the motor is started, so that the motor can drive the spline shaft 7 to rotate on the T-shaped plate 6, and the spline shaft 7 penetrates the inner wall of the spline shaft sleeve 4 and is connected to the spline shaft sleeve 4. With the spline shaft 7 rotating on the shaft, the spline shaft 7 can drive the sampling cylinder 5 to rotate on the T-shaped frame 3 through the spline shaft sleeve 4, and the sampling mechanism is provided on the T-shaped plate 6. With the spline shaft 7 driving the sampling cylinder 5 to rotate on the shaft, the sampling mechanism can drive the sampling cylinder 5 to reciprocatingly move up and down through the T-shaped frame 3, so that the sampling cylinder 5 can move and sample the road asphalt.

[0034] Through the installation hole 101 provided on the mobile cart 1, and the annular shell 14 provided on the installation hole 101, the annular shell 14 is fixed and supported on the inner wall of the installation hole 101, and the spray head 15 is provided on the annular shell 14, and the spray head 15 is arranged in an annular array on the inner wall of the annular shell 14, so that the spray head 15 is connected with the inside of the annular shell 14, and the cooling mechanism is provided on the mobile cart 1, so that the cooling mechanism can spray water on the outer contour of the sampling cylinder 5 through the spray head 15, so that the water can effectively reduce the temperature of the drill bit, prevent the drill bit from being damaged due to overheating, and prolong the service life of the drill bit.

[0035] Example two:

[0036] Based on example one, further more:

[0037] The sampling mechanism comprises a threaded rod 9 penetrating and connected to the T-shaped frame 3 for driving the T-shaped frame 3 to reciprocatingly move up and down, the T-shaped frame 3 is penetrated and fixedly connected with a threaded sleeve 8 at a corresponding position of the threaded rod 9, and the inner wall of the threaded sleeve 8 is penetrated by the threaded rod 9 and is screwed.

[0038] The end of the spline shaft rod 7 is coaxially connected with the second belt pulley 11 for driving the threaded rod 9 to rotate, and the end of the threaded rod 9 is coaxially connected with the first belt pulley 10 at a position corresponding to the second belt pulley 11, and the first belt pulley 10 and the second belt pulley 11 are sleeved with the transmission belt 12 for driving the threaded rod 9 to rotate synchronously.

[0039] In use, the threaded rod 9 is connected with the T-shaped plate 6 for axial rotation, the threaded sleeve 8 is fixedly supported on the T-shaped frame 3, the threaded sleeve 8 is sleeved on the outer contour of the threaded rod 9 and is screwed, the first belt pulley 10 is provided on the threaded rod 9, and the second belt pulley 11 is provided on the spline shaft rod 7, so that the first belt pulley 10 and the second belt pulley 11 are coaxially connected with the threaded rod 9 and the spline shaft rod 7 respectively, the transmission belt 12 is sleeved on the outer contour of the first belt pulley 10 and the second belt pulley 11, and is driven to rotate synchronously with the spline shaft rod 7, so that the transmission belt 12 drives the threaded rod 9 to rotate synchronously on the T-shaped plate 6, and the threaded sleeve 8 drives the T-shaped frame 3 to move up and down on the cylindrical rod 2 under the action of the threaded rod 9, so that the T-shaped frame 3 drives the sampling cylinder 5 to move up and down synchronously.

[0040] In actual use, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the T-shaped frame 3 drives the sampling cylinder 5 to the limit position at the end of the cylindrical rod 2 in the initial state, when the road asphalt sample is taken, the spline shaft rod 7 is driven to rotate counterclockwise by the motor, and the threaded rod 9 is driven to rotate counterclockwise on the T-shaped plate 6 by the transmission belt 12, so that the threaded sleeve 8 drives the T-shaped frame 3 to move in the downward vertical direction under the action of the threaded rod 9, and the T-shaped frame 3 drives the spline shaft sleeve 4 and the sampling cylinder 5 to move in the downward vertical direction on the outer contour of the spline shaft rod 7 synchronously, and the spline shaft rod 7 drives the sampling cylinder 5 to rotate synchronously, so that the sampling cylinder 5 can move to drill the road asphalt sample.

[0041] And the radius of the first pulley 10 is greater than the second pulley 11, the threaded rod 9 is slower than the speed of the spline shaft rod 7, so that the T-shaped frame 3 can drive the sampling cylinder 5 to move synchronously and slowly, avoiding the sampling cylinder 5 moving too fast, which will increase the friction between the sampling cylinder 5 and the asphalt pavement, causing the motor to bear too much load, causing the sampling device to stop, affecting the normal operation of the sampling work, increasing the equipment maintenance cost and downtime, prolonging the service life of the sampling device.

[0042] When the sampling cylinder 5 drills the asphalt sample on the road surface, the spline shaft rod 7 is driven by the motor to rotate clockwise, and the above structure moves synchronously in the opposite direction to reset, so that the sampling cylinder 5 can take out the internal asphalt sample from the hole in the road surface.

[0043] Example three:

[0044] Based on example two, further:

[0045] The outer contour of the sampling cylinder 5 near the bottom end is provided with a plurality of annular array through holes 501.

[0046] In use, through the through hole 501 provided on the sampling cylinder 5, the through hole 501 annular array on the sampling cylinder 5 ensures that the water source sprayed by the nozzle 15 can enter the inside of the sampling cylinder 5 through the through hole 501, which can cool the sampling cylinder 5 and the internal asphalt sample, avoiding the problem that a large amount of friction heat will be generated between the sampling cylinder 5 and the asphalt pavement during the drilling process, because asphalt is a thermoplastic material, its physical properties will change at high temperature, causing the asphalt to become too viscous or soften, thereby increasing the drilling difficulty.

[0047] Example four:

[0048] Based on example three, further:

[0049] The cooling mechanism includes a water storage tank 16 fixedly connected to one end of the movable cart 1 away from the cylindrical rod 2, the water storage tank 16 is penetrated and fixedly connected with a liquid inlet pipe 17 for delivering water to the inside of the sampling cylinder 5, and the liquid inlet pipe 17 is penetrated to the inner wall of the sampling cylinder 5 and fixedly connected away from the water storage tank 16, the outer contour of the sampling cylinder 5 near the liquid inlet pipe 17 is penetrated and fixedly connected with a liquid outlet pipe 18 for discharging water to the inside of the annular housing 14 and the nozzle 15 for spraying, and the liquid outlet pipe 18 is penetrated to the inside of the annular housing 14 and fixedly connected away from the sampling cylinder 5.

[0050] The outer contour of the spline shaft rod 7 near the bottom end is fixedly connected with a piston plate 19 for extracting and discharging the water source in the water storage tank 16. The inner wall of the liquid inlet pipe 17 near one end of the sampling cylinder 5 is fixedly connected with a one-way liquid inlet valve 20 for quantitative extraction of the water source in the water storage tank 16. The inner wall of the liquid outlet pipe 18 near one end of the sampling cylinder 5 is fixedly connected with a one-way liquid outlet valve 21 for quantitative discharge of the water source in the sampling cylinder 5.

[0051] In use, by moving the water storage tank 16 provided on the trolley 1, and the water storage tank 16 is fixedly supported on the trolley 1, first fill the water source in the water storage tank 16 for storage, through the liquid inlet pipe 17 provided on the water storage tank 16, then the liquid inlet pipe 17 can communicate the inner wall of the sampling cylinder 5 with the water storage tank 16, through the liquid outlet pipe 18 provided on the sampling cylinder 5, so that the liquid outlet pipe 18 can communicate the inner wall of the annular shell 14 with the sampling cylinder 5, through the piston plate 19 provided on the spline shaft rod 7, can make the piston plate 19 outer contour and the inner wall of the sampling cylinder 5 fit and movably connected, with the T-shaped frame 3 driving the sampling cylinder 5 to move downward to drill the asphalt sample, and the piston plate 19 moves towards the end of the sampling cylinder 5, so that the internal pressure of the nozzle 15 near the end is positive, and the one-way liquid inlet valve 20 provided on the liquid inlet pipe 17, the one-way liquid outlet valve 21 provided on the liquid outlet pipe 18, at this time the one-way liquid inlet valve 20 is in closed state, the one-way liquid outlet valve 21 is in open state, then the piston plate 19 can discharge the water source in the sampling cylinder 5 to the inner wall of the annular shell 14 through the liquid outlet pipe 18, so that the nozzle 15 can spray the water source on the sampling cylinder 5 and the internal asphalt sample, realizing the cooling of the sampling cylinder 5 and the internal asphalt sample during drilling, improving the sampling quality of the road asphalt, and prolonging the service life of the sampling cylinder 5.

[0052] When the T-shaped frame 3 drives the sampling cylinder 5 to move upwardly, the above structure moves in the opposite direction synchronously, and the internal pressure of the sampling cylinder 5 near the end is negative, at this time the one-way liquid inlet valve 20 is in open state, the one-way liquid outlet valve 21 is in closed state, so that the piston plate 19 can quantitatively extract the water source in the water storage tank 16 to the inside of the sampling cylinder 5 through the liquid inlet pipe 17.

[0053] Example five:

[0054] Based on example four, further more:

[0055] The spline shaft rod 7 is provided with a discharging mechanism for discharging the asphalt sample in the sampling cylinder 5. The discharging mechanism comprises a ejection block 22 fixedly connected to the bottom end of the spline shaft rod 7 for ejecting the asphalt sample in the sampling cylinder 5. The outer contour of the sampling cylinder 5 near the bottom end is fixedly connected with a one-way exhaust valve 23 for discharging the gas at the bottom end of the sampling cylinder 5.

[0056] In use, by the ejection block 22 arranged on the spline shaft rod 7, the ejection block 22 is fixed and supported on the spline shaft rod 7, by the one-way exhaust valve 23 arranged on the sampling cylinder 5, when the asphalt sample drilled inside the sampling cylinder 5 covers the through hole 501, accompanied by the sampling cylinder 5 moving drilling in the downward direction, and the piston plate 19 moves towards the top end of the sampling cylinder 5, at this time the internal air pressure of the sampling cylinder 5 close to the bottom end is in a negative pressure state, and the one-way exhaust valve 23 is in a closed state, which can guide the asphalt sample to move and store in the inside of the sampling cylinder 5, when the sampling cylinder 5 moves in the upward vertical direction, at this time the internal air pressure of the bottom end of the sampling cylinder 5 is in a positive pressure state, and the one-way exhaust valve 23 is in an open state, which can make the piston plate 19 discharge the air at the bottom end of the sampling cylinder 5 through the one-way exhaust valve 23, when the sampling cylinder 5 moves upward to the limit position, further the ejection block 22 can be in contact with the asphalt sample inside the sampling cylinder 5, and the surface of the ejection block 22 is provided with anti-skid lines to increase the friction between the ejection block 22 and the surface of the asphalt sample, and the spline shaft rod 7 drives the ejection block 22 to synchronously rotate around the axis, so that the ejection block 22 can drive the asphalt sample to rotate and separate from the inner wall of the sampling cylinder 5 and push the asphalt sample to move out of the inner wall of the sampling cylinder 5, realizing automatic discharging of the asphalt sample inside the sampling cylinder 5, and further improving the overall efficiency of the sampling work.

[0057] Further, the existing device can automatically drive the sampling cylinder to move and sample in actual use, which is convenient to use and better than the traditional product.

[0058] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description and drawings can also be directly processed according to the existing technical knowledge without doubt, and the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment adopt the conventional models in the existing technology, so the specific description is not made here.

[0059] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A road asphalt detection sampling device, characterized by: The invention relates to a mobile cart (1) for moving on a road surface, wherein cylindrical rods (2) are fixedly connected at symmetrical positions on both sides of the mobile cart (1), and a T-shaped frame (3) for lifting and reciprocating movement is sleeved on the outer contours of the two cylindrical rods (2), and one end of the T-shaped frame (3) away from the cylindrical rod (2) is penetrated and fixedly connected to a spline shaft sleeve (4), and the outer contour of the bottom end of the spline shaft sleeve (4) is fixedly connected to a sampling tube (5) for sampling road surface asphalt, and the ends of the two cylindrical rods (2) are fixedly connected to a T-shaped plate (6), and one end of the T-shaped plate (6) away from the cylindrical rod (2) is penetrated and fixedly connected to a spline shaft (7) driven to rotate by a power mechanism, and the inner wall of the spline shaft sleeve (4) is penetrated by the spline shaft (7) and is lifted and moved, and the T-shaped plate (6) is provided with a sampling mechanism for driving the sampling tube (5) to lift and reciprocate and drill the road surface asphalt; The mobile cart (1) is provided with a mounting hole (101), the inner wall of the mounting hole (101) is fixedly connected to an annular shell (14), and the inner wall of the annular shell (14) is penetrated and fixedly connected to a plurality of nozzles (15) arranged in an annular array; The outer contour of the sampling tube (5) near the bottom end is provided with a plurality of through holes (501) in a circular array, and the mobile cart (1) is provided with a cooling mechanism for spraying water on the sampling tube (5) and the asphalt sample inside through a nozzle (15); The cooling mechanism includes a water tank (16) for storing water fixedly connected to one end of the mobile cart (1) away from the cylindrical rod (2), a liquid inlet pipe (17) for conveying water to the interior of the sampling cylinder (5) is passed through and fixedly connected to the water tank (16), and the end of the liquid inlet pipe (17) away from the water tank (16) passes through the inner wall of the sampling cylinder (5) and is fixedly connected, and a liquid discharge pipe (18) for discharging water to the inside of the annular shell (14) and the nozzle (15) for spraying is passed through and fixedly connected to the outer contour of the sampling cylinder (5) near the end of the liquid inlet pipe (17), and the end of the liquid discharge pipe (18) away from the sampling cylinder (5) passes through the interior of the annular shell (14) and is fixedly connected; A piston plate (19) for extracting and discharging water from the water storage tank (16) is fixedly connected to the outer contour of the spline shaft (7) near the bottom end, a one-way liquid inlet valve (20) for quantitatively extracting water from the water storage tank (16) is fixedly connected to the inner wall of one end of the liquid inlet pipe (17) near the sampling cylinder (5), and a one-way liquid discharge valve (21) for quantitatively discharging water from the sampling cylinder (5) is fixedly connected to the inner wall of one end of the liquid discharge pipe (18) near the sampling cylinder (5).

2. A road asphalt detection sampling device according to claim 1, characterized in that: The sampling mechanism comprises a threaded rod (9) which is passed through the T-shaped plate (6) and is connected to the T-shaped frame (3) for reciprocating movement. A threaded sleeve (8) is passed through and fixedly connected to the T-shaped frame (3) at a position corresponding to the threaded rod (9), and the inner wall of the threaded sleeve (8) is passed through and screwed by the threaded rod (9).

3. The road asphalt detection sampling device according to claim 2, characterized in that: The end of the spline shaft (7) is coaxially fixedly connected to a second pulley (11) for driving the threaded rod (9) to rotate on a fixed axis, and the end of the threaded rod (9) is coaxially fixedly connected to a first pulley (10) at a position corresponding to the second pulley (11). A transmission belt (12) is provided in the sliding grooves on the outer contours of the first pulley (10) and the second pulley (11) for driving the spline shaft (7) to drive the threaded rod (9) to rotate synchronously.

4. The road asphalt detection sampling device according to claim 1, characterized in that: The spline shaft (7) is provided with a discharge mechanism for discharging the asphalt sample inside the sampling barrel (5), the discharge mechanism comprising a discharge block (22) fixedly connected to the bottom end of the spline shaft (7) for discharging the asphalt sample inside the sampling barrel (5), and a one-way exhaust valve (23) fixedly connected to the outer contour of the sampling barrel (5) near the bottom end for discharging the gas at the bottom end of the sampling barrel (5).

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