A road surface coring device for road surface inspection test

Abstract

A road coring device for road surface inspection test belongs to the field of coring inspection technology. It includes a loading rod body, the middle part of the loading rod body surface is connected to a supporting frame body through a thread, the loading rod body surface is slidably connected to a movable block body near the supporting frame body, and the bottom end of the movable block body is also provided with two sets of matching rod bodies, and the surface of the movable block body is rotatably connected to a coring mechanism through two sets of rectangular frames. Through the setting of the coring mechanism, the movable block, the matching mechanism and the supporting frame body, when the device is working, when coring, unlike the prior art, the road core sample is processed at one time while coring, the core sample column is preliminarily cut, and after being taken out, it is promptly sent to the inside of the bevel block, and the core sample is promptly cut using a core point component, and the preliminary core sample is processed again, so that when coring, it can directly form a finished product sample for testing, which is convenient for personnel to send for inspection later and achieve the effect of integrated work.

Description

Technical Field

[0001] The invention relates to the technical field of coring detection, in particular to a road surface coring device for road surface detection test. Background Art

[0002] Coring inspection is usually a road surface inspection coring equipment. Generally speaking, by drilling pavement core samples, we can deeply understand the structure, materials and performance of the road, provide a scientific basis for subsequent maintenance and upkeep, and detect key indicators such as the flatness and strength of the road, evaluate the road usage, and promptly discover and deal with potential problems. It is used for regular or irregular inspections of roads to ensure the safety and durability of the roads. The core samples taken out can be used for laboratory analysis to evaluate the physical and chemical properties of road materials and provide data support for road maintenance and reconstruction. Generally speaking, the core samples are drilled on the road surface through the high-speed rotation and feed motion of the drill bit;

[0003] At present, when coring for road surface testing, the coring may be contaminated by the outside world, which will affect the accuracy of the test results. For example, impurities may cover up the true situation inside the core sample, or the specifications of the core sample taken out may not be convenient for subsequent inspection, making it difficult to understand the internal structure and performance of the material, which will cause data errors. Summary of the invention

[0004] The purpose of the present invention is to provide a road surface coring device for road surface inspection test, which solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a road surface coring device for road surface inspection test, comprising a loading rod body, the middle part of the surface of the loading rod body is connected to a supporting frame body by a thread, the surface of the loading rod body is slidably connected to a movable block body close to the supporting frame body, and the bottom end of the movable block body is also provided with two groups of matching rod bodies, the surface of the movable block body is rotatably connected to a coring mechanism through two groups of rectangular frames, and the surface of the movable block body is fixedly connected to a matching mechanism on the other side close to the supporting frame body.

[0006] Furthermore, the coring mechanism includes a mounting base rotatably connected to the inside of the rectangular frame and cooperating with the movable block, a control rod body is threadedly connected to the middle part of the top end of the mounting base, the end of the control rod body is fixedly connected to a rotating ring body, and a limiting shell is arranged on the top end of the mounting base near both sides of the rotating ring body, a high-pressure water pump is fixedly connected to the top of one of the limiting shells, and a lower cone assembly is threadedly connected to the surface of the control rod body.

[0007] Furthermore, a semi-arc shell is provided at the bottom end of the lower cone assembly, a first drive motor is fixedly connected to the interior of the lower cone assembly, an output end of the first drive motor is fixedly connected to a drilling cylinder, the lower end of the drilling cylinder is a conical opening, a semi-circle arc hole is provided on the top of the drilling cylinder, an offset block is slidably connected to the interior of the semi-circle arc hole, the lower end of the offset block is conical, the upper end is flat, and the outer surface of the lower end of the offset block fits with the inner wall of the drilling cylinder.

[0008] Furthermore, the matching mechanism includes a bevel block fixedly connected to the surface of the movable block, an auxiliary component is provided on one side of the top of the bevel block, a connecting component is provided on the top of the auxiliary component near the short side of the L-shaped hole, a sliding groove is provided on the edge of the other side of the top of the bevel block, and a propulsion long block is connected through the internal sliding of the sliding groove, and a limiting component is also provided on the side of the top of the bevel block away from the propulsion long block.

[0009] Furthermore, an L-shaped hole is opened at the top of the auxiliary component, a large rectangular hole is opened on one side of the auxiliary component, and a small rectangular hole is opened on one side of the auxiliary component near the large rectangular hole, and a core component is slidably connected inside the L-shaped hole.

[0010] Furthermore, a cylinder is provided inside the core component, the output end of the cylinder is fixedly connected to a first matching block, one side of the first matching block is fixedly connected to a second drive motor, the other side of the first matching block is rotatably connected to a cutting saw blade, and the output end of the second drive motor is fixedly connected to the cutting saw blade.

[0011] Furthermore, the top of the connecting component is fixedly connected to a water pipe body, the end of the water pipe body is fixedly connected to a limiting curved surface block, one side of the limiting curved surface block is provided with a plurality of groups of downwardly folded pipes, the other side of the limiting curved surface block is fixedly connected to an auxiliary component, and the connecting component, the water pipe body, the limiting curved surface block and the downwardly folded pipes are internally connected to each other.

[0012] Furthermore, a plurality of cutting notches are provided on the surface of the limiting component in a linear array, and the opening of the limiting component is vertically aligned with the center portion of the short side of the L-shaped hole.

[0013] Furthermore, a plurality of groups of foot blocks are arranged at the bottom of the surface of the support frame, and the number of the foot blocks is two.

[0014] Furthermore, a plurality of groups of moving bases are provided at the bottom of the surface of the bevel block, and the number of the moving bases is two.

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

[0016] The present invention provides a road surface coring device for road surface inspection test. Through the arrangement of a coring mechanism, a movable block, a matching mechanism and a supporting frame, when the device is working, when coring, unlike the prior art, a road core sample is processed at one time while coring, a core sample column is preliminarily cut, and after being taken out, it is promptly sent to the inside of a bevel block, a core point component is used to timely cut the core sample, and the preliminary core sample is processed again, so that when coring, a finished product sample can be directly formed for testing, which is convenient for personnel to send for inspection later, and the effect of integrated work is achieved;

[0017] At the same time, through the coordinated use of the semi-arc shell, the offset block and the connecting component, when the drilling cylinder has completed the initial coring on the road surface, the semi-arc shell is stepped on to take out the primary core sample, thereby reducing the problem of personnel bending the middle of the core column due to improper operation when using pliers and other devices to take the core. After the initial coring is taken out, the core column is sent to the matching mechanism through the displacement coordination of the offset block and the coring mechanism. During the transportation of the core sample under the connecting component, the core column is simultaneously flushed. Impurities, cement debris, etc. on the coring will also contaminate the staff. Before the coring is sent for inspection, the core is processed, cleaned and bent to reduce direct contact between personnel and the core sample, while reducing the safety hazards caused by dangerous devices such as cutting saw blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram showing the overall structure of the device of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall flipping structure of the coring mechanism of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the coring mechanism of the present invention when the whole is turned over from another perspective;

[0021] Figure 4 It is a schematic diagram of the structure of the coring mechanism of the present invention when it is turned over as a whole and viewed from bottom to top;

[0022] Figure 5 It is a schematic diagram of the overall flip side structure of the coring mechanism of the present invention;

[0023] Figure 6 Another structural schematic diagram showing the overall view of the device of the present invention;

[0024] Figure 7 It is a schematic diagram showing the structure of the overall section of the device of the present invention;

[0025] Figure 8 It is a schematic diagram of a partially disassembled installation guide structure of the matching mechanism of the present invention;

[0026] Fig. 9This is a structural schematic diagram of another viewing angle of a partially disassembled installation guide of the matching mechanism of the present invention.

[0027] In the figure: 1, loading rod body; 2, supporting frame body; 3, movable block body; 31, matching rod body; 32, rectangular frame body; 4, coring mechanism; 41, mounting base; 42, control rod body; 43, rotating circle body; 44, limiting shell body; 45, lower cone assembly; 451, semi-arc shell body; 452, first driving motor; 453, drilling cylinder body; 454, offset block; 46, high-pressure water pump; 5, matching mechanism; 51, bevel block; 52, auxiliary Auxiliary component; 521, L-shaped hole; 522, large rectangular hole; 523, core component; 5231, cylinder; 5232, first matching block; 5233, second drive motor; 5234, cutting saw blade; 53, connecting component; 531, water pipe body; 532, limiting curved surface block; 533, downward folding pipe; 54, pushing long block; 55, limiting component; 551, cutting notch; 6, foot block; 7, moving base. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0030] Combination Figure 1-Figure 9 A road coring device for road surface inspection test comprises a loading rod body 1, the middle part of the surface of the loading rod body 1 is connected to a supporting frame body 2 by a thread, a movable block body 3 is slidably connected to the side of the surface of the loading rod body 1 close to the supporting frame body 2, two groups of matching rod bodies 31 are also provided at the bottom end of the movable block body 3, the surface of the movable block body 3 is rotatably connected to a coring mechanism 4 through two groups of rectangular frames 32, and a matching mechanism 5 is fixedly connected to the other side of the surface of the movable block body 3 close to the supporting frame body 2.

[0031] The support frame 2 moves within a certain range on the surface of the loading rod 1. When the device is lightweight as a whole, threaded holes can be opened on the surface of the movable block 3, and fixing bolts matching the holes can be installed to prevent the movable block 3 from deviating when the device is rotating and coring.

[0032] See also Figure 2-Figure 9The coring mechanism 4 includes a mounting base 41 which is rotatably connected to the inside of the rectangular frame 32 and cooperates with the movable block 3. A control rod body 42 is threadedly connected to the middle of the top of the mounting base 41. The end of the control rod body 42 is fixedly connected to a rotating ring body 43. A limiting shell 44 is provided on both sides of the top of the mounting base 41 near the rotating ring body 43, and a high-pressure water pump 46 is fixedly connected to the top of one of the limiting shells 44. A lower cone component 45 is threadedly connected to the surface of the control rod body 42.

[0033] When the control rod body 42 starts to rotate, it will drive the lower cone assembly 45 to start moving downward. When the lower cone assembly 45 starts to move downward, its back will start to cooperate with the two matching rod bodies 31 at the bottom of the movable block 3, so that it can slide down stably on the surface of the matching rod bodies 31, ensuring that the drilling cylinder 453 can be drilled vertically. When the drilling cylinder 453 is drilling, the high-pressure water pump 46 on its mounting base 41 will input cooling water to the working part of the device through a pipeline.

[0034] A semi-arc shell 451 is provided at the bottom end of the lower cone component 45, and a first drive motor 452 is fixedly connected to the interior of the lower cone component 45, and a drilling cylinder 453 is fixedly connected to the output end of the first drive motor 452, and the lower end of the drilling cylinder 453 is a conical opening, and a semi-circle arc hole is opened on the top of the drilling cylinder 453, and an offset block 454 is slidably connected to the interior of the semi-circle arc hole, and the lower end of the offset block 454 is conical and the upper end is flat, and the outer surface of the lower end of the offset block 454 fits with the inner wall of the drilling cylinder 453.

[0035] The semi-arc shell 451 below the lower cone assembly 45 will intercept the rotating liquid and waste residue driven by the drilling cylinder 453 to drill when the first drive motor 452 is working, to prevent splashing to the staff. When the drilling cylinder 453 is initially drilled until the required coring depth is reached, the first drive motor 452 is turned off at this time. The bottom of the core sample inside the drilling cylinder 453 may still be connected to the ground at this time. Under special circumstances, there may be no disconnection. At this time, the staff needs to step on the offset block 454 to make the offset block 454 inside the drilling cylinder 453 descend, break the core material taken from the road surface, and clamp it to a certain extent. Then, the lower cone assembly 45 is raised, and the movable block 3 is pushed to the appropriate position, and the mounting base 41 is turned over.

[0036] The external water source is connected to the high-pressure water pump 46, and then the first drive motor 452 is started so that the first drive motor 452 starts to work. The first drive motor 452 will drive the drilling cylinder 453 to work. At this time, the drilling cylinder 453 begins to contact the designated position to drill and coring. At the same time, the personnel rotates the rotating ring body 43 on the mounting base 41. At this time, the rotation of the rotating ring body 43 will cause the control rod body 42 to start working. When the control rod body 42 starts to rotate, it will drive the lower cone assembly 45 to start working downward. When the lower cone assembly 45 starts to work downward, its back will start to cooperate with the two mating rod bodies 31 at the lower part of the movable block 3, so that it can stably slide down on the surface of the mating rod body 31 to ensure that the drilling cylinder 453 can perform vertical drilling.

[0037] The matching mechanism 5 includes a bevel block 51 fixedly connected to the surface of the movable block body 3, an auxiliary component 52 is provided on one side of the top of the bevel block 51, a connecting component 53 is provided on the top of the auxiliary component 52 near the short side of the L-shaped hole 521, a sliding groove is provided on the edge of the other side of the top of the bevel block 51, and a propulsion long block 54 is connected through the internal sliding of the sliding groove, and a limiting component 55 is also provided on the side of the top of the bevel block 51 away from the propulsion long block 54.

[0038] An L-shaped hole 521 is provided at the top of the auxiliary component 52, a large rectangular hole 522 is provided at one side of the auxiliary component 52, and a small rectangular hole is provided at one side of the auxiliary component 52 near the large rectangular hole 522. A core component 523 is slidably connected inside the L-shaped hole 521.

[0039] A cylinder 5231 is provided inside the core component 523, and the output end of the cylinder 5231 is fixedly connected to a first matching block 5232, one side of the first matching block 5232 is fixedly connected to a second drive motor 5233, the other side of the first matching block 5232 is rotatably connected to a cutting saw blade 5234, and the output end of the second drive motor 5233 is fixedly connected to the cutting saw blade 5234.

[0040] The core-pointing component 523 moves to the top of the core sample that has been processed initially, and then the second drive motor 5233 starts to work. At this time, the second drive motor 5233 is located above the core sample, and the cylinder 5231 starts to work to lower the first matching block 5232. At the same time, the cutting saw blade 5234 starts to cut the core sample to the required standard thickness. The cutting saw blade 5234 can be closed when necessary, and the upper part and the left, right and rear sides are closed with steel plates, and the front side of the cutting saw blade 5234 is closed with tempered glass (for the operator to observe the cutting of the core sample). The device makes the entire cutting operation fully automated, eliminates the contact between the operator and the cutting saw blade 5234, ensures the safety of the operator, improves the smoothness of the cutting surface, and ensures the accuracy of the test detection.

[0041] The top of the connecting component 53 is fixedly connected to a water-passing pipe body 531, and the end of the water-passing pipe body 531 is fixedly connected to a limiting curved surface block 532. One side of the limiting curved surface block 532 is provided with a plurality of groups of downwardly folded pipes 533, and the other side of the limiting curved surface block 532 is fixedly connected to the auxiliary component 52. The connecting component 53, the water-passing pipe body 531, the limiting curved surface block 532 and the downwardly folded pipe 533 are internally connected to each other.

[0042] The surface of the limiting component 55 is provided with a plurality of cutting notches 551 in a linear array, and the opening of the limiting component 55 is vertically aligned with the center portion of the short side of the L-shaped hole 521 .

[0043] The water pipe body 531 connects the flushing water source to the interior of the connecting component 53, and the water flows out from the downward folded pipe 533 through the interior of the limiting curved surface block 532. The internal opening of the downward folded pipe 533 presents a conical chamber, and the core sample on the limiting component 55 is sent to the interior of the drilling cylinder 453 for flushing. When the garbage and impurities on the surface are flushed away, the core point component 523 inside the L-shaped hole 521 on the matching mechanism 5 is then started. At this time, the core point component 523 moves to the top of the core sample that has been preliminarily treated.

[0044] A plurality of groups of foot blocks 6 are disposed at the bottom of the surface of the support frame 2 , and the number of the foot blocks 6 is two.

[0045] The number of foot blocks 6 depends on the number of operators, but the minimum number is two groups, which is convenient for operators to control the entire device. When the device is sampling and coring, if the device is offset, the personnel need to step on the foot block 6 set at the bottom of the surface of the support frame 2 to stabilize the device.

[0046] A plurality of groups of moving bases 7 are disposed at the bottom of the surface of the bevel block 51 , and the number of the moving bases 7 is two.

[0047] The tires of the entire movable device are arranged on the group motion base 7. The number of the group motion base 7 is at least two groups. When the device is transported, it is convenient to drag and save the physical labor of the staff. Conventionally, at least two staff members may be required to move the entire device. When the device is actually used, if the weight of the device itself is too large, two to four groups of motion bases 7 can be set, but at the same time, the problem of the stability of the entire device during operation must be solved at the same time. Specific implementation method;

[0049] First, the personnel moves the entire device to a suitable position. Then, after pulling the movable block 3 to a suitable position, if the movable block 3 is offset, bolts can be added to the movable block 3 to fix it on the loading rod 1 to prevent it from offsetting. Then, the external water source is connected to the high-pressure water pump 46. Then, the first drive motor 452 is started to start the first drive motor 452 to start working. The first drive motor 452 will drive the drilling cylinder 453 to work. At this time, the drilling cylinder 453 begins to contact the designated position to drill and coring. At the same time, the personnel rotates the rotating ring 43 on the mounting base 41. At this time, the rotation of the rotating ring 43 will cause the control rod 42 to start working. When the control rod 42 starts to rotate, It will drive the lower cone assembly 45 to start operating downward. When the lower cone assembly 45 starts operating downward, its back will start to cooperate with the two matching rods 31 at the bottom of the movable block 3, so that it can stably slide down on the surface of the matching rods 31, ensuring that the drilling cylinder 453 can drill vertically. When the drilling cylinder 453 is drilling, the high-pressure water pump 46 on its mounting base 41 will input cooling water into the working part of the device through a pipeline to cool it down and spray it to reduce dust. At this time, the semi-arc shell 451 arranged under the lower cone assembly 45 will intercept the rotating liquid and waste residue driven by the drilling cylinder 453 to drill when the first drive motor 452 is working, to prevent splashing to the staff. When the drilling cylinder 453 is initially drilled until it reaches When the required coring depth is reached, the first drive motor 452 is turned off. The bottom of the core sample inside the drilling cylinder 453 may still be connected to the ground. In special cases, there may be no disconnection. At this time, the personnel need to step on the offset block 454 to make the offset block 454 inside the drilling cylinder 453 descend, break the core material taken from the road surface, and clamp it to a certain extent. Then, the lower cone assembly 45 is raised, and after pushing the movable block 3 to the appropriate position, the mounting base 41 is rotated 270 degrees, and the range of the floating is 250 to 270 degrees. At this time, the flushing water source is connected to the inside of the connecting assembly 53 through the water pipe body 531, and the water flows out from the lower folding pipe 533 through the interior of the limiting curved surface block 532. The lower folding pipe 5 The inner opening of 33 presents a conical chamber, the water pressure becomes larger, the flow rate becomes faster, and the core sample sent from the inside of the drilling cylinder 453 to the limiting component 55 is washed. When the garbage and impurities on the surface are washed away, the core-pointing component 523 in the L-shaped hole 521 on the matching mechanism 5 is then started. At this time, the core-pointing component 523 moves to the top of the preliminarily processed core sample. Then, the second drive motor 5233 starts to work. At this time, the second drive motor 5233 is just above the core sample, and the cylinder 5231 starts to work to lower the first matching block 5232. At the same time, the cutting saw blade 5234 starts to cut the core sample to the required standard thickness. When the core sample is cut, the pusher block 54 on the bevel block 51 is pushed.The cut core sample is pushed, and the core sample slides into the surface chamber of the bevel block 51 for storage.

[0050] In this article, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road coring device for road surface inspection test, comprising a loading rod (1), characterized in that: The middle part of the surface of the loading rod body (1) is connected to the support frame body (2) via a thread, the surface of the loading rod body (1) is slidably connected to a movable block body (3) on one side close to the support frame body (2), the bottom end of the movable block body (3) is further provided with two groups of matching rod bodies (31), the surface of the movable block body (3) is rotatably connected to a coring mechanism (4) via two groups of rectangular frames (32), and the other side of the surface of the movable block body (3) close to the support frame body (2) is fixedly connected to a matching mechanism (5); The coring mechanism (4) comprises a mounting base (41) rotatably connected to the inside of the rectangular frame (32) and matched with the movable block (3); a control rod body (42) is threadedly connected to the middle of the top of the mounting base (41); the end of the control rod body (42) is fixedly connected to a rotating ring body (43); a limiting shell (44) is provided at the top of the mounting base (41) near both sides of the rotating ring body (43); a high-pressure water pump (46) is fixedly connected to the top of one of the limiting shells (44); and a lower cone assembly (45) is threadedly connected to the surface of the control rod body (42); A semi-arc shell (451) is provided at the bottom end of the lower cone component (45), a first drive motor (452) is fixedly connected to the interior of the lower cone component (45), an output end of the first drive motor (452) is fixedly connected to a drilling cylinder (453), a lower end of the drilling cylinder (453) is a conical opening, a semi-circle arc hole is provided at the top of the drilling cylinder (453), an offset block (454) is slidably connected to the interior of the semi-circle arc hole, the lower end of the offset block (454) is conical, the upper end is flat, and the outer surface of the lower end of the offset block (454) is in contact with the inner wall of the drilling cylinder (453); The matching mechanism (5) comprises a bevel block (51) fixedly connected to the surface of the movable block (3); an auxiliary component (52) is arranged on one side of the top of the bevel block (51); a connecting component (53) is arranged at the top of the auxiliary component (52) near the short side of the L-shaped hole (521); a sliding notch is provided at the edge of the other side of the top of the bevel block (51); and a propulsion long block (54) is slidably connected to the inside of the sliding notch; and a limiting component (55) is also arranged on the side of the top of the bevel block (51) away from the propulsion long block (54); An L-shaped hole (521) is formed at the top of the auxiliary component (52), a large rectangular hole (522) is formed at one side of the auxiliary component (52), and a small rectangular hole is formed at a position close to the large rectangular hole (522) at one side of the auxiliary component (52), and a core component (523) is slidably connected to the inside of the L-shaped hole (521); The top end of the connecting component (53) is fixedly connected to a water-passing pipe body (531), the end of the water-passing pipe body (531) is fixedly connected to a limiting curved surface block (532), one side of the limiting curved surface block (532) is provided with a plurality of groups of downwardly folded pipes (533), the other side of the limiting curved surface block (532) is fixedly connected to the auxiliary component (52), and the connecting component (53), the water-passing pipe body (531), the limiting curved surface block (532) and the downwardly folded pipes (533) are internally connected to each other.

2. A road surface coring device for road surface inspection test according to claim 1, characterized in that: A cylinder (5231) is arranged inside the core component (523), the output end of the cylinder (5231) is fixedly connected to a first matching block (5232), one side of the first matching block (5232) is fixedly connected to a second drive motor (5233), the other side of the first matching block (5232) is rotatably connected to a cutting saw blade (5234), and the output end of the second drive motor (5233) is fixedly connected to the cutting saw blade (5234).

3. A road surface coring device for road surface inspection test according to claim 1, characterized in that: The surface of the limiting component (55) is provided with a plurality of groups of cutting notches (551) in a linear array, and the opening of the limiting component (55) is vertically aligned with the center portion of the short side of the L-shaped hole (521).

4. The road coring device for road surface inspection test according to claim 1, characterized in that: A plurality of groups of foot blocks (6) are arranged at the bottom of the surface of the support frame (2), and the number of the foot blocks (6) is two.

5. The road coring device for road surface inspection test according to claim 2, characterized in that: A plurality of groups of moving bases (7) are provided at the bottom of the surface of the bevel block (51), and the number of the moving bases (7) is two.

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