Highway building material detection system based on multivariate data analysis

Abstract

The invention relates to the field of detection, and provides a multivariate data analysis-based road building material detection system, which comprises a guide column, a slide block and a rebound apparatus, the slide block is slidably connected to the guide column, the rebound apparatus is rotatably connected to the slide block through a limiting rotating shaft, the rebound apparatus is provided with a cavity I, the guide column is provided with a cavity II, and the cavity II is provided with a cavity II. A horizontal direction driving assembly is arranged in the first cavity, a grid drawing block is connected to the horizontal direction driving assembly, a supporting piece is fixedly connected to the outer wall of the guide column, and a movable bearing assembly is arranged on the inner wall of the second cavity. The device is convenient to store, the portability is improved, the rebound apparatus can rotate around the limiting rotating shaft to be approximately parallel to the guide column, the occupied space is reduced, a user can store and take the rebound apparatus conveniently, detection grids are efficiently, automatically and accurately drawn, and the construction detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection, in particular to a highway construction material detection system based on multivariate data analysis. BACKGROUND

[0002] In highway construction material detection, the rebound hammer is a legal and commonly used non-destructive testing tool. As long as there is a concrete structure (small bridge, culvert, retaining, tunnel lining, bridge deck pavement, etc.) on site, the rebound hammer must be used for strength sampling inspection. Before using the rebound hammer for detection, the concrete structure needs to be drawn with sixteen grid detection areas.

[0003] The Chinese utility model patent with publication number CN220339953U discloses a concrete strength detection device, relating to the technical field of concrete detection, comprising a rebound hammer main body, one side of the rebound hammer main body is fixedly connected with a connecting plate, the other side of the connecting plate is fixedly connected with a drawing board. In the utility model, before detecting the concrete wall, the drawing board coated with ink is tightly attached to the concrete wall to be detected, and the drawing board draws the detection area range on the concrete wall, a total of sixteen detection areas are drawn, then two handles are held, the detection head of the rebound hammer main body is used to press the wall surface of the detection area, and the detection data of the rebound hammer main body is recorded, so that the worker can quickly draw the detection grid on the wall surface before detecting the concrete wall, and the working efficiency of the detection work is effectively improved.

[0004] However, the drawing board of the above-mentioned patent is large in size and occupies a lot of space, which is not convenient to carry. SUMMARY

[0005] In view of the above technical problems, the present application aims to provide a highway construction material detection system based on multivariate data analysis. To solve the above technical problems, the present application adopts the following technical scheme:

[0006] A highway construction material detection system based on multivariate data analysis, comprising a guide column, a sliding block and a rebound hammer, the sliding block is slidingly connected to the guide column, the rebound hammer is rotatably connected to the sliding block through a limiting shaft, a cavity one is formed in the rebound hammer, a cavity two is formed in the guide column, a horizontal direction driving assembly is arranged in the cavity one, a drawing block is connected to the horizontal direction driving assembly, a support plate is fixedly connected to the outer wall of the guide column, and a movable supporting assembly is arranged on the inner wall of the cavity two.

[0007] Preferably, the horizontal direction driving assembly comprises a steering wheel, a transmission wheel two, a transmission block, an L-shaped seat and a guide strip, the steering wheel and the guide strip are fixedly connected to the inner wall of the cavity one, a transmission wheel one is fixedly connected to the output shaft of the steering wheel, the guide strip is provided with four protruding parts, the transmission wheel two is rotationally connected to the inner wall of the cavity one, the transmission wheel two is connected with the transmission wheel one through a transmission belt, the rear wall of the transmission belt is fixedly connected with a movable strip one, the transmission block is slidably connected to the inner wall of the cavity one, a block hole is formed in the transmission block, the movable strip one is slidably connected to the inner wall of the block hole, the L-shaped seat is slidably connected to the inner wall of the cavity one, the L-shaped seat is fixedly connected with the transmission block, the picture block is slidably connected to the inner wall of the L-shaped seat, the picture block is connected with the L-shaped seat through an elastic element one, and a guide wheel assembly is connected to the picture block.

[0008] Preferably, the front wall of the transmission belt is fixedly connected with two movable strips two, the movable support assembly comprises an L-shaped plate and three extension assemblies, the L-shaped plate is slidably connected to the inner wall of the cavity two, the L-shaped plate is connected with the inner wall of the cavity two through an elastic element two, and the L-shaped plate is fixedly connected with three wedge-shaped blocks one;

[0009] The extension assembly comprises a wedge-shaped block two, a linkage rod one, a linkage rod two, a rotating drum and two limiting strips, the wedge-shaped block two is slidably connected to the inner wall of the cavity two, a vertical strip is fixedly connected to the wedge-shaped block two, a wedge-shaped block three is fixedly connected to the vertical strip, a strip hole is formed in the vertical strip, the upper end of the linkage rod one and the rotating drum are rotationally connected to the inner wall of the cavity two, the lower end of the linkage rod one and the upper end of the linkage rod two are rotationally connected, the lower end of the linkage rod two is slidably connected to the rotating drum, an extension strip is rotationally connected to the linkage rod two, the extension strip is slidably connected to the inner wall of the strip hole, a sleeve ring is fixedly connected to the linkage rod two, the sleeve ring is connected with the rotating drum through an elastic element three, and the two limiting strips are fixedly connected to the inner wall of the cavity two.

[0010] Preferably, the picture block is connected with a printing frame, and the picture block is provided with an ink storage mechanism.

[0011] Preferably, the ink storage mechanism comprises an ink storage block connected to the picture block and two or more ink guide strips, ink is infiltrated in the ink storage block, and the ink storage block is connected with the printing frame through the ink guide strips.

[0012] Preferably, the material of the printing frame comprises a flexible material.

[0013] Preferably, the top wall of the wedge-shaped block two is rollingly connected with two or more balls.

[0014] Preferably, the steering wheel is a digital steering wheel.

[0015] Preferably, the material of the guide column and the rebound instrument comprises stainless steel.

[0016] Preferably, the rebound instrument is connected with a controller.

[0017] The application has the following beneficial effects:

[0018] The device storage convenience is realized, the portability is improved, the rebound instrument can rotate to the state of being close to parallel with the guide column around the limiting rotating shaft, the occupied space is reduced, the rebound instrument is convenient for users to store and take, efficient automatic and accurate drawing detection grids are realized, and the construction detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application is further described by using the drawings, but the embodiments in the drawings do not constitute any limitation on the application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying the creative labor.

[0020] Figure 1 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application;

[0021] Figure 2 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 1 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application

[0022] Figure 3 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 2

[0023] Figure 4 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 2

[0024] Figure 5 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 2

[0025] Figure 6 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 1

[0026] Figure 7 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 1

[0027] Figure 8 is a structural schematic diagram of a highway building material detection system based on multivariate data analysis of the application Figure 1

[0028] ​​​​​​Mark No. : 1, guide column; 2, sliding block; 3, rebound instrument; 4, cavity one; 5, cavity two; 6, steering engine; 7, transmission wheel one; 8, transmission belt; 9, movable strip one; 10, movable strip two; 11, transmission block; 12, block hole; 13, L-shaped seat; 14, picture frame block; 15, guide strip; 16, elastic piece one; 17, guide wheel assembly; 18, transmission wheel two; 19, elastic piece two; 20, L-shaped plate; 21, wedge-shaped block one; 22, wedge-shaped block two; 23, vertical strip; 24, wedge-shaped block three; 25, strip hole; 26, linkage rod one; 27, linkage rod two; 28, extension strip; 29, sleeve ring; 30, elastic piece three; 31, rotating drum; 32, limiting strip; 33, ball; 34, supporting sheet; 35, ink storage block; 36, ink guide strip; 37, printing frame. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] As Figures 1-8As shown, a kind of highway construction material detection system based on multivariate data analysis, including guide column 1, slider 2 and rebound apparatus 3, slider 2 is slidably connected on guide column 1, rebound apparatus 3 is rotatably connected on slider 2 by limiting pivot, cavity one 4 is set on rebound apparatus 3, cavity two 5 is set on guide column 1, horizontal direction driving assembly is equipped in cavity one 4, and picture frame block 14 is connected on horizontal direction driving assembly, support piece 34 is fixedly connected on the outer wall of guide column 1, and movable supporting assembly is equipped on the inner wall of cavity two 5.

[0033] In addition to setting displacement sensor, rebound apparatus 3 can also set temperature sensor and humidity sensor, so as to carry out multivariate data analysis on the temperature and humidity of wall, facilitate subsequent realization of correction and compensation to detection data, enhance the stability and reliability of detection result.

[0034] According to an optional embodiment of the application, the horizontal direction driving assembly includes rudder machine 6, transmission wheel two 18, transmission block 11, L-shaped seat 13 and guide strip 15, rudder machine 6 and guide strip 15 are fixedly connected to the inner wall of the cavity one 4, transmission wheel one 7 is fixedly connected to the output shaft of rudder machine 6, four protruding parts are arranged on guide strip 15, transmission wheel two 18 is rotatably connected to the inner wall of cavity one 4, transmission wheel two 18 is connected by transmission belt 8 and transmission wheel one 7, movable strip one 9 is fixedly connected to the rear wall of transmission belt 8, transmission block 11 is slidably connected to the inner wall of cavity one 4, block hole 12 is arranged on transmission block 11, movable strip one 9 is slidably connected to the inner wall of block hole 12, L-shaped seat 13 is slidably connected to the inner wall of cavity one 4, and L-shaped seat 13 is fixedly connected to transmission block 11, picture frame block 14 is slidably connected to the inner wall of L-shaped seat 13, picture frame block 14 is connected by elastic member one 16 and L-shaped seat 13, and guide wheel assembly 17 is connected to picture frame block 14.

[0035] The distance between the last points on adjacent protruding parts is 200mm.

[0036] According to an optional embodiment of the application, two movable strip two 10 are fixedly connected to the front wall of transmission belt 8, the movable supporting assembly includes L-shaped plate 20 and three extension assemblies, L-shaped plate 20 is slidably connected to the inner wall of cavity two 5, L-shaped plate 20 is connected by elastic member two 19 and the inner wall of cavity two 5, and three wedge-shaped blocks one 21 are fixedly connected to L-shaped plate 20.

[0037] The extension assembly includes a second wedge block 22, a first linkage rod 26, a second linkage rod 27, a rotating cylinder 31, and two limiting strips 32. The second wedge block 22 is slidably connected to the inner wall of the second cavity 5. A vertical strip 23 is fixedly connected to the second wedge block 22, and a third wedge block 24 is fixedly connected to the vertical strip 23. A strip hole 25 is opened on the vertical strip 23. The upper end of the first linkage rod 26 and the rotating cylinder 31 are rotatably connected to the inner wall of the second cavity 5. The lower end of the first linkage rod 26 and the upper end of the second linkage rod 27 are rotatably connected. The lower end of the second linkage rod 27 is slidably connected to the rotating cylinder 31. An extension strip 28 is rotatably connected to the second linkage rod 27. The extension strip 28 is slidably connected to the inner wall of the strip hole 25. A collar 29 is fixedly connected to the second linkage rod 27. The collar 29 is connected to the rotating cylinder 31 through an elastic element 30. The two limiting strips 32 are fixedly connected to the inner wall of the second cavity 5.

[0038] The top walls of adjacent wedge blocks 22 are 200mm apart.

[0039] According to an optional embodiment of the present invention, a printing frame 37 is connected to the grid block 14, and an ink storage mechanism is provided inside the grid block 14.

[0040] The length and width of the printing frame 37 are both 200mm.

[0041] In an optional embodiment of the present invention, the ink storage mechanism includes an ink storage block 35 connected to the grid block 14 and two or more ink guide strips 36. The ink storage block 35 is filled with ink and is connected to the printing frame 37 via the ink guide strips 36. The ink storage block 35 is made of a porous polymer material, which can absorb and slowly release ink. The ink guide strips 36 are made of polyester fiber strips, which have capillary action and can stably conduct ink to the surface of the printing frame 37, ensuring continuous ink supply.

[0042] In an optional embodiment of the present invention, the printing frame 37 is made of a flexible material.

[0043] According to an optional embodiment of the present invention, the top wall of the wedge block 22 is connected to two or more balls 33, the balls 33 having a diameter of 3-4 mm.

[0044] In an optional embodiment of the present invention, the servo motor 6 is a digital servo motor with a torque ≥20 kg·cm, a positioning accuracy of ±0.1°, and an aluminum alloy housing to ensure high precision and durability.

[0045] In an optional embodiment of the present invention, both the guide post 1 and the rebound spring 3 are made of stainless steel.

[0046] According to an optional embodiment of the present invention, the rebound device 3 is connected to a controller, which is mainly used for collecting, processing and transmitting detection data, and controlling electrical components, and is the intelligent hub of the system.

[0047] Implementation process:

[0048] When the device is not used, all the wedge blocks three 24 are retracted into the cavity two 5, the vertical bar 23 and the right limiting bar 32 abut to limit, the sliding block 2 and the supporting piece 34 abut, the rebound instrument 3 rotates around the limiting pivot to be close to the guide column 1 and be parallel to each other, the occupied space is reduced to facilitate storage and taking.

[0049] When the device needs to be used, the rebound instrument 3 rotates around the sliding block 2 until the rebound instrument 3 and the guide column 1 are perpendicular to each other, and the rebound instrument 3 and the sliding block 2 are moved upward until the L-shaped plate 20 overcomes the elastic force of the elastic element two 19 and moves upward, the L-shaped plate 20 drives all the wedge blocks one 21 to move upward, the wedge blocks one 21 drive the wedge blocks two 22 to move left, the vertical bar 23 moves left through the bar hole 25 to drive the extension bar 28 to move left, the extension bar 28 drives the linkage rod two 27 and the rotating drum 31 to rotate counterclockwise, the linkage rod one 26 rotates clockwise, the sleeve ring 29 compresses the elastic element three 30, the linkage rod two 27 slides on the rotating drum 31, when the linkage rod one 26 and the linkage rod two 27 are parallel to each other, the vertical bar 23 drives the extension bar 28 to move left by a small distance, then the sleeve ring 29 and the linkage rod two 27 rapidly rotate counterclockwise under the elongation elastic force of the elastic element three 30, the linkage rod one 26 rapidly rotates clockwise, the vertical bar 23 rapidly moves left, until the vertical bar 23 and the left limiting bar 32 abut, the left wall of the wedge blocks two 22 extends to the left outside of the cavity two 5, the rebound instrument 3 is released and falls downward under the action of its own gravity to abut against the top wall of the uppermost wedge blocks two 22, the rudder 6 is opened to drive the transmission wheel one 7 to rotate counterclockwise, the transmission wheel one 7 drives the transmission wheel two 18 to rotate through the transmission belt 8, the movable bar one 9 and the two movable bars two 10 move along the movement track of the transmission belt 8, the movable bar one 9 drives the transmission block 11, the L-shaped seat 13, and the picture grid block 14 to move right, the guide wheel assembly 17 moves along the rear wall of the guide strip 15, when the guide wheel assembly 17 and the protrusions on the guide strip 15 abut, the protrusions make the guide wheel assembly 17 and the picture grid block 14 move backward against the elastic force of the elastic element one 16, so that the picture grid block 14 abuts against the wall, the ink in the ink storage block 35 penetrates into the printing frame 37 through the ink guide strip 36, so that the printing frame 37 abuts against the wall when printing a grid, the picture grid block 14 continues to move right, and the wall is printed with four grids in a row through the four protrusions.

[0050] From top to bottom, they are respectively named as the first wedge block three 24, the second wedge block three 24, the third wedge block three 24, and the fourth wedge block three 24.

[0051] When the movable strip 9 moves to the transmission wheel 2 18 and starts to move left above the transmission wheel 2 18, at this time, one of the movable strips 2 10 moves up and pushes the inclined surface of the first wedge block 3 24, so that the wedge block 3 24, the vertical strip 23 and the wedge block 2 22 move right in the strip hole 25, the extension strip 28 moves right, the linkage rod 2 27 and the rotating drum 3 1 rotate clockwise, the linkage rod 1 26 rotates counterclockwise, when the linkage rod 2 27 and the linkage rod 1 26 are parallel to each other, the wedge block 3 24 moves right by a small distance, the linkage rod 2 27 rotates clockwise quickly under the elastic force of the elastic element 3 0, the linkage rod 1 26 rotates counterclockwise quickly, so as to drive the vertical strip 23 and the wedge block 2 22 to move right quickly, until the vertical strip 23 and the right limiting strip 3 2 abut, at this time, the wedge block 2 22 is retracted into the cavity 2 5, the wedge block 2 22 releases the support of the rebound instrument 3, the rebound instrument 3 and the sliding block 2 move downward under the action of gravity, until the sliding block 2 and the top wall of the wedge block 2 22 abut, then the movable strip 9 moves left under the driving of the transmission belt 8, the drawing block 1 4 and the guide wheel assembly 1 7 pass through the protruding part and print a grid on the wall, the drawing block 1 4 continues to move left, and the wall is printed with four grids in the next row through the four protruding parts.

[0052] When the movable strip 9 moves to the transmission wheel 1 7 and is below the transmission wheel 1 7, at this time, the other movable strip 2 10 moves up and pushes the inclined surface of the second vertical strip 2 3, by using the same principle, the second wedge block 3 24 drives the wedge block 2 22 to move right and releases the support of the rebound instrument 3, the rebound instrument 3 and the sliding block 2 fall, until the sliding block 2 and the wedge block 2 22 below abut.

[0053] By using the same principle, four rows of grids are printed on the wall, each row has four grids, and finally the sliding block 2 abuts against the supporting piece 3 4.

[0054] After drawing sixteen grids, the rebound instrument 3 can be used for rebound detection of each grid, and the user can hold the guide column 1 to detect the highway wall by using the rebound instrument 3, so that the rebound instrument 3 is more convenient to hold and the detection is more convenient.

[0055] The application has the following beneficial effects:

[0056] Efficient, automatic and accurate drawing and detection grids are realized, the construction detection efficiency is improved, the transmission wheel 1 7 and the transmission wheel 2 18 are driven by the steering wheel 6, the movable strip 9 is driven to move by the transmission belt 8, and then the transmission block 1 1, the L-shaped seat 1 3 and the drawing block 1 4 move along the horizontal direction, and the four protruding parts on the guide strip 1 5 are matched, so that the horizontal grid drawing under the automatic control is realized.

[0057] The continuous and stable ink supply is realized by loading the ink storage mechanism, the ink storage block 3 5 and the printing frame 3 7 are guided by the ink guide strip 3 6, so that the ink is uniformly conducted to the printing frame 3 7, and even if the drawing time is long, the pattern can also be kept clear and complete.

[0058] The automatic lattice row drawing is realized, the degree of automation is improved, the extension component cooperates with the movable strip two 10 to complete the vertical position change of the rebound instrument 3, and the movable strip two 10 pushes different wedge-shaped blocks three 24 when passing through a specific position of the transmission belt 8, so that the extension strip 28 drives the linkage rod two 27 and the rotating drum 31 rotates, and then the wedge-shaped block two 22 quickly changes the position in and out of the cavity two 5, so that the rebound instrument 3 is released, the height of the rebound instrument 3 is changed layer by layer, and the drawing task of four rows is efficiently completed;

[0059] The device storage convenience is realized, the portability is improved, the rebound instrument 3 can be rotated to be close to parallel with the guide column 1 around the limiting rotating shaft, the occupied space is reduced, and the user can conveniently store and take the rebound instrument 3;

[0060] The user can directly hold the guide column 1 and use the rebound instrument 3, without the need of an additional supporting device, so that the operation fatigue is reduced.

[0061] The components, modules, mechanisms and devices of the structure which are not described in detail in the application are all general standard parts or parts known by the person skilled in the art, the structure and principle of which can be known by the person skilled in the art through a technical manual or through a conventional experimental method.

[0062] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the application, and are not limited to the protection scope of the application. Although the application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the application.

Claims

1. A highway construction material testing system based on multivariate data analysis, characterized in that, It includes a guide post, a slider, and a rebound spring. The slider is slidably connected to the guide post, and the rebound spring is rotatably connected to the slider via a limiting shaft. The rebound spring has a cavity one, and the guide post has a cavity two. A horizontal drive component is provided in the cavity one, and a grid block is connected to the horizontal drive component. A support plate is fixed to the outer wall of the guide post, and a movable support component is provided on the inner wall of the cavity two.

2. The highway construction material testing system based on multivariate data analysis according to claim 1, characterized in that, The horizontal drive assembly includes a servo motor, a second transmission wheel, a transmission block, an L-shaped seat, and a guide bar. The servo motor and the guide bar are both fixed to the inner wall of the cavity. The first transmission wheel is fixed to the output shaft of the servo motor. The guide bar has four protrusions. The second transmission wheel is rotatably connected to the inner wall of the cavity. The second transmission wheel is connected to the first transmission wheel via a transmission belt. A movable bar is fixed to the rear wall of the transmission belt. The transmission block is slidably connected to the inner wall of the cavity. The transmission block has a hole. The movable bar is slidably connected to the inner wall of the hole. The L-shaped seat is slidably connected to the inner wall of the cavity. The L-shaped seat and the transmission block are fixedly connected. The grid block is slidably connected to the inner wall of the L-shaped seat. The grid block is connected to the L-shaped seat via an elastic element. A guide wheel assembly is connected to the grid block.

3. The highway construction material testing system based on multivariate data analysis according to claim 2, characterized in that, The front wall of the transmission belt is fixedly connected to two movable strips II. The movable support assembly includes an L-shaped plate and three extension components. The L-shaped plate is slidably connected to the inner wall of the cavity II. The L-shaped plate is connected to the inner wall of the cavity II through an elastic element II. Three wedge-shaped blocks I are fixedly connected to the L-shaped plate. The extension assembly includes a second wedge block, a first linkage rod, a second linkage rod, a rotating cylinder, and two limiting strips. The second wedge block is slidably connected to the inner wall of the second cavity. A vertical strip is fixedly connected to the second wedge block, and a third wedge block is fixedly connected to the vertical strip. A slot is opened on the vertical strip. The upper end of the first linkage rod and the rotating cylinder are rotatably connected to the inner wall of the second cavity. The lower end of the first linkage rod and the upper end of the second linkage rod are rotatably connected. The lower end of the second linkage rod is slidably connected to the rotating cylinder. An extension strip is rotatably connected to the second linkage rod, and the extension strip is slidably connected to the inner wall of the slot. A collar is fixedly connected to the second linkage rod, and the collar is connected to the rotating cylinder through an elastic element. Both limiting strips are fixedly connected to the inner wall of the second cavity.

4. The highway construction material testing system based on multivariate data analysis according to claim 3, characterized in that, The grid block is connected to a printing frame, and the grid block is equipped with an ink storage mechanism.

5. The highway construction material testing system based on multivariate data analysis according to claim 4, characterized in that, The ink storage mechanism includes an ink storage block connected to the grid block and two or more ink guide strips. The ink storage block is filled with ink and is connected to the printing frame through the ink guide strips.

6. The highway construction material testing system based on multivariate data analysis according to claim 5, characterized in that, The printing frame material includes flexible materials.

7. The highway construction material testing system based on multivariate data analysis according to claim 6, characterized in that, The wedge-shaped block has two or more rolling balls connected to its top wall.

8. The highway construction material testing system based on multivariate data analysis according to claim 7, characterized in that, The servo is a digital servo.

9. A highway construction material testing system based on multivariate data analysis according to claim 8, characterized in that, The guide post and rebound spring are both made of stainless steel.

10. The highway construction material testing system based on multivariate data analysis according to claim 9, characterized in that, The rebound spring is connected to a controller.

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