A pressure device for testing raw materials in highway engineering

Abstract

The present application relates to a pressurizing device for testing raw materials in highway engineering, belonging to the technical field of raw material test and detection. It includes a pressure testing machine, which comprises a base, a workbench, a test bench, a lower platen and columns. A receiving plate is rotatably arranged on the workbench. The rotation axis of the receiving plate is perpendicular to the workbench and is located on one side of the test bench. The bottom of the receiving plate rests on the test bench. The receiving plate is used for placing test blocks. A plurality of placing notches are formed in the receiving plate and are evenly arranged along the circumferential direction of the receiving plate. The area of the placing notch is larger than the area of the test block and smaller than the area of the test bench. A receiving member and a positioning member are arranged in the placing notch. The receiving member is used to place the test block on the receiving plate after the test block is placed in the placing notch. The positioning member is used to adjust the position of the test block so that the test block is located at the center of the placing notch. The present application has the effect of improving the test efficiency of test blocks.

Description

Technical Field

[0001] This application relates to the technical field of raw material test and detection, and particularly to a pressurizing device for raw material test and detection in highway engineering. Background Art

[0002] Concrete test blocks are standardized samples used in highway engineering to detect the properties such as strength and durability of concrete. After being cast and cured in a standard mold, compression, flexure and other tests are carried out to evaluate whether the quality of concrete in the actual project meets the design requirements. It is a key link in quality control to ensure the safety and stability of building structures; the main purpose of the concrete test block pressure test is to determine the compressive strength of concrete, which is an important index for evaluating the quality of concrete. Through testing, the mechanical properties of concrete can be understood, providing a basis for engineering design, construction and quality control; when testing the strength of concrete test blocks, the test blocks are placed on the test bench of the press, and then the lower pressure plate drives the hydraulic cylinder to apply pressure to the test blocks until the test blocks are damaged.

[0003] However, the number of test blocks in the same batch is at least three, and they need to be tested sequentially. Moreover, each time a measurement is taken, steps such as repeated placement of test blocks and cleaning of the test bench are required, resulting in a relatively average test efficiency of the test blocks. Summary of the Invention

[0004] To improve the test efficiency of test blocks, this application provides a pressurizing device for raw material test and detection in highway engineering.

[0005] The pressurizing device for raw material test and detection in highway engineering provided by this application adopts the following technical solutions:

[0006] A pressurizing device for raw material test and detection in highway engineering includes a compression testing machine, the compression testing machine includes a base, a workbench, a test bench, a lower pressure plate and columns. The workbench is fixedly arranged on the base, the columns are fixedly arranged on the workbench, the test bench is fixedly arranged on the workbench and is located between the columns, the lower pressure plate is slidably arranged between the columns, a receiving plate is rotatably arranged on the workbench, the rotation axis of the receiving plate is perpendicular to the workbench and is located on one side of the test bench, the bottom of the receiving plate abuts against the test bench, the receiving plate is used for placing test blocks, a placing notch is formed on the receiving plate, a plurality of placing notches are formed and are evenly arranged along the circumferential direction of the receiving plate, the area of the placing notch is larger than the area of the test block and smaller than the area of the test bench, a receiving member and a positioning member are arranged in the placing notch, the receiving member is used for making the test block located on the receiving plate after the test block is placed in the placing notch, and the positioning member is used for adjusting the position of the test block to make the test block located at the center of the placing notch.

[0007] Optionally, the receiving member includes a receiving block disposed in the placement notch. There are two receiving blocks, which are respectively located on two side walls opposite to each other in the placement notch. The side walls of the placement notch are provided with sliding grooves, and the receiving blocks are slidably disposed in the sliding grooves. The receiving member further includes a first driving member for driving the receiving blocks to slide in the sliding grooves.

[0008] Optionally, the sliding groove penetrates through the receiving plate. The bottom of the receiving block is flush with the bottom of the receiving plate. The two sides of the receiving block are slidably clamped on the side walls of the sliding groove. The placement notch is located behind the test bench. The bottom of the receiving block abuts on the test bench, and the surface of the receiving block facing away from the bottom wall of the sliding groove is inclined towards the top surface of the placement notch.

[0009] Optionally, the positioning member includes a positioning rod slidably disposed in the placement notch. The positioning rod is located on the side wall of the placement notch. The positioning rod is located above the receiving block. The sliding direction of the positioning rod is perpendicular to the side wall of the placement notch where it is located. The positioning member further includes a second driving member for driving the positioning rod to slide.

[0010] Optionally, a plurality of mounting cavities are provided on the bottom wall of the receiving plate. The mounting cavities are located between adjacent placement notches. The openings of the mounting cavities face the workbench. A brush rod is rotatably disposed in the mounting cavity. The rotation axis of the brush rod is perpendicular to the top wall of the mounting cavity. A third driving member for driving the brush rod to rotate to clean the surface of the test bench is disposed in the mounting cavity.

[0011] Optionally, a rotating rod is rotatably disposed on the workbench. The receiving plate is coaxially disposed on the rotating rod. The rotating rod includes a first rod body and a second rod body. The first rod body is rotatably disposed on the workbench. The receiving plate is disposed on the second rod body. The first rod body and the second rod body are movably connected. The rotating rod further includes a connecting member coaxially connecting the first rod body and the second rod body and enabling the first rod body and the second rod body to have the same movement tendency.

[0012] Optionally, the connecting member includes a sleeve sleeved on the first rod body. Guide strips protrude from the inner wall of the sleeve. A plurality of clamping grooves for clamping the guide strips are provided on the outer wall of the second rod body. There are a plurality of clamping grooves, which are uniformly arranged circumferentially along the outer wall of the second rod body.

[0013] Optionally, the butt ends of the first rod body and the second rod body are both frustum-shaped, and magnets are provided on the inclined surfaces of the butt ends. After the second rod body is separated from the first rod body, the edge of the receiving plate abuts on the workbench, and the inclined surface of the butt end of the second rod body is adsorbed on the inclined surface of the butt end of the first rod body, so as to place the receiving plate on the workbench in an inclined state.

[0014] Optionally, a socket cover is provided on the receiving plate. Both ends of the socket cover are open. The socket cover is frustum-shaped with a gradually decreasing diameter. The circumference of the free end of the socket cover is smaller than the circumference of the test block, and it is socketed on the test block. The socket cover is made of an elastic material and is socketed on the side wall of the test block near the compressed end.

[0015] Optionally, a rectangular frame is provided inside the socket port of the socket cover. The border of the rectangular frame is made of telescopic rods, and a spring is provided inside to drive the telescopic rods to retract.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] When testing the strength of the test block, first place the test block on the receiving plate. After the test block is on the receiving plate, it is located in the placement notch and fixed in the placement notch by the receiving member. Then, through the positioning member acting on the test block, the test block is located in the middle of the placement notch, so that the test block is separated from the inner wall of the placement notch. Subsequently, rotate the receiving plate. The rotation of the receiving plate drives the test block to move and be placed on the test bench. At this time, the bottom of the receiving plate is placed on the test bench. Then, through the receiving member, the test block is dropped onto the test bench, and then the lower pressing plate is slid to press the test block for testing. When the test block is damaged, rotate the receiving plate again. The receiving plate drives the adjacent test block to be placed on the test bench, thus reducing the process of installing the test block and improving the testing efficiency of the test block; under the action of the positioning member, the test block is separated from the placement notch, thereby reducing the influence of the placement notch on the test of the test block and improving the test accuracy of the test block;

[0018] When the test block is damaged, the broken test block falls on the receiving plate and the test bench. When the receiving plate rotates, the side wall of the placement notch and the bottom wall of the receiving plate scrape the broken test block, causing the test block on the test bench to fall, thus completing the cleaning of the test bench. Therefore, there is no need to clean the test bench separately, and the testing efficiency of the test block is improved. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of a pressure device for testing highway engineering raw materials in an embodiment of the present application;

[0020] Figure 2 is the structural schematic diagram of the receiving plate in a pressure device for testing highway engineering raw materials in an embodiment of the present application;

[0021] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0022] Figure 4 is the cross-sectional view of the receiving plate in a pressure device for testing highway engineering raw materials in an embodiment of the present application;

[0023] Figure 5 yes Figure 4 An enlarged schematic diagram of part B;

[0024] Figure 6 This is a schematic diagram of the bottom of a receiving plate in a pressurizing device for testing and inspecting raw materials for highway engineering according to an embodiment of the present application;

[0025] Figure 7 yes Figure 6 A magnified schematic diagram of part C;

[0026] Figure 8 This is a cross-sectional view of a rotating rod in a pressurizing device for testing and inspecting raw materials for highway engineering according to an embodiment of the present application;

[0027] Figure 9 yes Figure 8 An enlarged schematic diagram of part D in the middle;

[0028] Figure 10 yes Figure 1 Enlarged schematic diagram of part E.

[0029] Explanation of reference numerals: 1, pressure testing machine; 11, base; 12, workbench; 13, test bench; 14, lower pressure plate; 15, column; 16, hydraulic cylinder;

[0030] 2. Attachment plate; 3. Place the gap;

[0031] 4. Receiver; 41. Receiver block; 42. First push rod;

[0032] 5. Positioning member; 51. Positioning rod; 52. Second push rod;

[0033] 6. Slide; 7. Mounting cavity; 8. Brush rod; 9. First motor;

[0034] 10. Rotating rod; 101. First rod body; 102. Second rod body;

[0035] 17. Connecting piece; 171. Sleeve; 172. Guide strip; 173. Snap-fit groove;

[0036] 18. Socket cover; 19. Rectangular frame. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1 -Attached Figure 10 This application is described in further detail.

[0038] The embodiment of the present application discloses a pressurizing device for testing and inspecting raw materials for highway engineering. Figure 1, including a compression testing machine 1, the compression testing machine 1 includes a base 11, a workbench 12, a test bench 13, a lower pressing plate 14 and columns 15. The workbench 12 is fixedly arranged on the base 11, the columns 15 are fixedly arranged on the workbench 12, the test bench 13 is fixedly arranged on the workbench 12 and is located between the columns 15, and the lower pressing plate 14 is slidably arranged between the columns 15. Further, the compression testing machine 1 further includes a hydraulic cylinder 16, and the hydraulic cylinder 16 is used to drive the lower pressing plate 14 to apply a load to the test block.

[0039] Referring to Figure 1 and Figure 2 , to improve the testing efficiency of the test block, a receiving plate 2 is rotatably arranged on the workbench 12. The receiving plate 2 is in a disc shape, and the rotation axis of the receiving plate 2 is perpendicular to the workbench 12 and is located on one side of the test bench 13. Further, a driving motor for driving the receiving plate 2 to rotate is arranged on the workbench 12. The bottom of the receiving plate 2 is received on the test bench 13. The receiving plate 2 is used to place the test block. A placing notch 3 is formed on the receiving plate 2. A plurality of placing notches 3 are formed and are evenly arranged along the circumferential direction of the receiving plate 2. The area of the placing notch 3 is larger than the area of the test block and smaller than the area of the test bench 13.

[0040] Referring to Figure 2 and Figure 3 , a receiving member 4 and a positioning member 5 are arranged in the placing notch 3. The receiving member 4 is used to make the test block located on the receiving plate 2 after the test block is placed in the placing notch 3. The positioning member 5 is used to adjust the position of the test block so that the test block is located at the center of the placing notch 3.

[0041] When performing a strength test on the test block, first place the test block on the receiving plate 2. After the test block is located on the receiving plate 2, the test block is located in the placing notch 3 and is fixed in the placing notch 3 by the receiving member 4. Then, the positioning member 5 acts on the test block to make the test block located in the middle of the placing notch 3, so that the test block is in a separated state from the inner wall of the placing notch 3. Subsequently, rotate the receiving plate 2. The rotation of the receiving plate 2 drives the test block to move and be placed on the test bench 13. At this time, the bottom of the receiving plate 2 is placed on the test bench 13. Then, the test block is made to fall onto the test bench 13 by the receiving member 4. Then, slide the lower pressing plate 14 to press the test block for testing. When the test block is damaged, rotate the receiving plate 2 again. The receiving plate 2 drives the adjacent test block to be placed on the test bench 13, thereby reducing the process of installing the test block and improving the testing efficiency of the test block.

[0042] Referring to Figure 4 and Figure 5, in the embodiment of the present application, the receiving member 4 includes a receiving block 41 disposed in the placing notch 3. The receiving block 41 is strip-shaped. There are two receiving blocks 41 and they are respectively located on two opposite side walls of the placing notch 3 facing each other. A sliding groove 6 is formed in the side wall of the placing notch 3. The receiving block 41 is slidably disposed in the sliding groove 6. The receiving member 4 further includes a first driving member for driving the receiving block 41 to slide in the sliding groove 6. The first driving member includes a first push rod 42 disposed in the sliding groove 6. The length direction of the output shaft of the first push rod 42 is parallel to the depth direction of the sliding groove 6. The receiving block 41 is fixedly disposed on the output shaft of the first push rod 42; when receiving the test block, the first push rod 42 is started, and the first push rod 42 drives the receiving block 41 to slide out of the sliding groove 6 and then places the test block on the receiving block 41, and the operation is simple and convenient; when the test block needs to fall on the test bench 13, the first push rod 42 is started, and the first push rod 42 pulls the receiving block 41 into the sliding groove 6, and the test block is separated from the receiving block 41 and falls on the test bench 13, and the operation is simple and convenient.

[0043] Refer to Figure 4 and Figure 5 , in the embodiment of the present application, in order to reduce the broken pieces of the test block falling on the test bench 13 when the test block is broken, and thus reduce the broken pieces falling on the workbench 12. Therefore, the bottom of the sliding groove 6 penetrates through the receiving plate 2, and the bottom of the receiving block 41 is flush with the bottom of the receiving plate 2. The two sides of the receiving block 41 are slidably clamped on the side walls of the sliding groove 6. Further, the width of the receiving block 41 is equal to the width of the placing notch 3. After the ends of the two receiving blocks 41 abut against each other, the receiving block 41 completely closes the placing notch 3. The placing notch 3 is located behind the test bench 13, and the bottom of the receiving block 41 abuts on the test bench 13. The surface of the receiving block 41 facing away from the bottom wall of the sliding groove 6 is inclined towards the top surface of the placing notch 3; after the test block is damaged, the broken test block falls on the receiving plate 2 and the test bench 13. At this time, the first push rod 42 is started, and the first push rod 42 pushes the receiving block 41 to slide out of the sliding groove 6. Since the receiving block 41 abuts on the test bench 13 and the end face of the receiving block 41 is an inclined surface, when the two receiving blocks 41 approach each other, the broken pieces on the test bench 13 are shoveled, so that the broken pieces are transferred from the test bench 13 to the receiving block 41, thereby reducing the broken pieces falling on the test bench 13 and driving the test block to move away following the rotation of the receiving plate 2.

[0044] Refer to Figure 6 and Figure 7After the receiving block 41 removes the broken pieces on the test bench 13, a lot of fine impurities and dust will remain on the test bench 13. Under the action of the impurities and dust, it will be difficult to place the test block vertically on the test bench 13. Therefore, in the embodiment of the present application, a plurality of mounting cavities 7 are opened on the bottom wall of the receiving plate 2. The mounting cavities 7 are located between adjacent placement notches 3. The openings of the mounting cavities 7 face the workbench 12. A brush rod 8 is rotatably provided in the mounting cavity 7. The rotation axis of the brush rod 8 is perpendicular to the top wall of the mounting cavity 7. A brush rod 8 is provided in the mounting cavity 7 for driving the test block. The brush rod 8 rotates to clean the surface of the test bench 13. The third driving member includes a first motor 9 arranged in the installation cavity 7. The length direction of the output shaft of the first motor 9 is perpendicular to the bottom wall of the installation cavity 7. The middle part of the brush rod 8 is fixedly set on the output shaft of the first motor 9; when the receiving plate 2 rotates, the first motor 9 is started, and the first motor 9 drives the brush rod 8 to rotate. When the brush rod 8 rotates, the bristles on the brush rod 8 remove fine impurities on the test bench 13, thereby making the test bench 13 cleaner and facilitating the test block to fall on the test bench 13.

[0045] Reference Figure 4 and Figure 5 In the embodiment of the present application, the positioning member 5 includes a positioning rod 51 slidably arranged in the placement notch 3, the positioning rod 51 is located on the side wall of the placement notch 3, and the four side walls of the placement notch 3 are all provided with positioning rods 51, the positioning rod 51 is located above the receiving block 41, and the sliding direction of the positioning rod 51 is perpendicular to the side wall of the placement notch 3. The positioning member 5 also includes a second driving member for driving the positioning rod 51 to slide, and the second driving member includes a second push rod 52 embedded in the receiving plate 2, and the positioning rod 51 is coaxially arranged on the output shaft of the second push rod 52; when the test block falls from the receiving block 41, the second push rod 52 is started, and the second push rod 52 drives the positioning rod 51 to slide, and the positioning rod 51 moves out of the placement notch 3 and abuts against the test block, thereby making the test block located in the middle of the placement notch 3, and the operation is simple and convenient.

[0046] Reference Figure 8 and Figure 9, after the test piece breaks on the test bench 13 and falls onto the receiving plate 2, for the convenience of centralized processing of the test piece, in the embodiment of the present application, a rotating rod 10 is rotatably arranged on the workbench 12, the receiving plate 2 is coaxially arranged on the rotating rod 10, the rotating rod 10 includes a first rod body 101 and a second rod body 102, the first rod body 101 is rotatably arranged on the workbench 12, the first rod body 101 is coaxially arranged on the output shaft of the driving motor, the receiving plate 2 is arranged on the second rod body 102, the first rod body 101 and the second rod body 102 are movably connected, and the rotating rod 10 further includes a connecting member 17 that coaxially connects the first rod body 101 and the second rod body 102 and makes the first rod body 101 and the second rod body 102 have the same movement tendency; after the test piece breaks and falls onto the receiving block 41 and the receiving plate 2, the second rod body 102 is removed from the first rod body 101 or the edge of the receiving plate 2 is received on the workbench 12. After the edge of the receiving plate 2 is received on the workbench 12, the test piece falls onto the workbench 12, facilitating the centralized processing of the test piece; and under the action of the connecting member 17, it is convenient for the driving motor to drive the first rod body 101 to rotate and drive the receiving plate 2 to rotate.

[0047] Refer to Figure 8 and Figure 9 , in the embodiment of the present application, the docking ends of the first rod body 101 and the second rod body 102 are both frustum-shaped and magnets are arranged on the inclined surfaces of the docking ends. After the second rod body 102 is separated from the first rod body 101, the edge of the receiving plate 2 is received on the workbench 12, and the inclined surface of the docking end of the second rod body 102 is adsorbed on the inclined surface of the docking end of the first rod body 101 to place the receiving plate 2 on the workbench 12 in an inclined state; the second rod body 102 drives the receiving plate 2 to be placed obliquely on the workbench 12. At this time, the frustum of the second rod body 102 is adsorbed on the frustum of the first rod body 101, preventing the receiving plate 2 from being directly laid flat on the workbench 12, thus facilitating the cleaning of the fragments and impurities on the receiving plate 2; and when the receiving plate 2 is inclined, it is convenient for the fragments on the receiving plate 2 to fall from the receiving plate 2. During the falling process of the fragments, the receiving plate 2 is rotated so that the receiving plate 2 runs on the workbench 12. When the receiving plate 2 is running, the second rod body 102 is adsorbed on the first rod body 101, thus facilitating the guiding of the running of the receiving plate 2.

[0048] Refer to Figure 8 and Figure 9, in the embodiment of the present application, the connecting member 17 includes a sleeve 171 sleeved on the first rod body 101. A guiding strip 172 protrudes from the inner wall of the sleeve 171. A plurality of clamping grooves 173 for clamping the guiding strip 172 are formed on the outer wall of the second rod body 102. A plurality of clamping grooves 173 are formed and are evenly arranged circumferentially along the outer wall of the second rod body 102. When connecting the second rod body 102 and the first rod body 101, slide the sleeve 171 so that the guiding strip 172 in the sleeve 171 is clamped in the clamping groove 173, thereby relatively fixing the second rod body 102 and the first rod body 101, so as to facilitate the first rod body 101 to drive the second rod body 102 to rotate.

[0049] Refer to Figure 1 and Figure 10 , when the test piece is damaged by the lower pressing plate 14, the test piece falls on the receiving plate 2. Some test pieces will fall from the receiving plate 2 to the workbench 12 and the ground, resulting in a relatively chaotic test environment. Therefore, in the embodiment of the present application, a socket cover 18 is provided on the receiving plate 2. The socket cover 18 sleeves the placement notch 3. Both ends of the socket cover 18 are open and are rectangular. The socket cover 18 is frustum-shaped and the diameter gradually decreases. The circumference of the free end of the socket cover 18 is smaller than the circumference of the test piece and sleeves the test piece. The socket cover 18 is made of an elastic material and sleeves the side wall of the test piece close to the compressed end. When the test piece is placed on the receiving block 41, pull the opening of the socket cover 18 to make the opening of the socket cover 18 larger than the test piece, and then move the test piece into the socket cover 18 from the opening of the socket cover 18 and place it on the receiving block 41. At this time, the opening of the socket cover 18 is close to the end of the test piece. When the lower pressing plate 14 tests the test piece, the test piece breaks in the socket cover 18, and the broken pieces are located in the socket cover 18. Under the action of the socket cover 18, the broken pieces are limited, reducing the possibility of the broken pieces falling.

[0050] Refer to Figure 1 and Figure 10 , to facilitate the test piece to move into the socket cover 18 from the opening of the socket cover 18, a rectangular frame 19 is provided in the socket port of the socket cover 18. The border of the rectangular frame 19 is made of telescopic rods, and a spring for driving the telescopic rods to retract is arranged inside. When the test piece moves into the socket cover 18 from the opening, pull the corners of the rectangular frame 19, and the border of the rectangular frame 19 extends to expand the opening of the socket cover 18, thus facilitating the test piece to move into the socket cover 18.

[0051] The implementation principle of a pressure device for testing raw materials in highway engineering in the embodiment of the present application is:

[0052] When performing strength testing on the test block, first place the test block on the receiving plate 2. After the test block is located on the receiving plate 2, pull the corners of the rectangular frame 19. The border of the rectangular frame 19 elongates to expand the opening of the socket cover 18, and then move the test block into the cup of the socket cover 18. The test block is located in the placement notch 3 and the first push rod 42 is activated. The first push rod 42 drives the receiving block 41 to slide out of the chute 6 and then place the test block on the receiving block 41. Subsequently, activate the second push rod 52. The second push rod 52 drives the positioning rod 51 to slide. After the positioning rod 51 moves out of the placement notch 3, it abuts against the test block, thereby positioning the test block in the middle of the placement notch 3.

[0053] Subsequently, activate the hydraulic cylinder 16. The hydraulic cylinder 16 drives the lower pressing plate 14 to slide and press against the test block to perform strength testing on the test block. When the test block breaks, activate the first push rod 42. The first push rod 42 pushes the receiving block 41 to slide out of the chute 6. Since the receiving block 41 is received on the test bench 13 and the end face of the receiving block 41 is inclined, when the receiving blocks 41 on both sides approach each other, the fragments on the test bench 13 are shoveled, and the fragments are transferred from the test bench 13 to the receiving block 41.

[0054] Subsequently, rotate the receiving plate 2 to replace the test block to be tested. When replacing the test block, the receiving plate 2 scrapes the fragments on the test bench 13, and some of them fall on the workbench 12. When the installation cavity 7 moves to the test bench 13, activate the first motor 9. The first motor 9 drives the brush rod 8 to rotate. When the brush rod 8 rotates, the bristles on the brush rod 8 remove the fine impurities on the test bench 13, so that the test bench 13 is relatively clean and convenient for the test block to fall on the test bench 13.

[0055] Rotate the receiving plate 2 again. The receiving plate 2 drives the adjacent test block to be placed on the test bench 13, thereby reducing the process of installing the test block and improving the testing efficiency of the test block.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pressure device for testing raw materials in highway engineering, characterized in that: The invention comprises a pressure testing machine (1), wherein the pressure testing machine (1) comprises a base (11), a workbench (12), a test bench (13), a lower pressure plate (14) and a column (15), wherein the workbench (12) is fixedly arranged on the base (11), the column (15) is fixedly arranged on the workbench (12), the test bench (13) is fixedly arranged on the workbench (12) and is located between the columns (15), the lower pressure plate (14) is slidably arranged between the columns (15), and a receiving plate (2) is rotatably arranged on the workbench (12), the rotation axis of the receiving plate (2) is perpendicular to the workbench (12) and is located at the center of the test bench (13). On one side, the bottom of the receiving plate (2) is received on the test bench (13), the receiving plate (2) is used to place the test block, the receiving plate (2) is provided with a placement notch (3), a plurality of the placement notches (3) are provided and are evenly arranged along the circumference of the receiving plate (2), the area of the placement notch (3) is larger than the area of the test block and smaller than the area of the test bench (13), a receiving member (4) and a positioning member (5) are provided in the placement notch (3), the receiving member (4) is used to place the test block on the receiving plate (2) after the test block is placed in the placement notch (3), and the positioning member (5) is used to adjust the position of the test block so that the test block is located at the center of the placement notch (3); The receiving member (4) includes a receiving block (41) arranged in the placement notch (3), the receiving block (41) is provided with two side walls respectively located opposite to the placement notch (3), the side wall of the placement notch (3) is provided with a sliding groove (6), the receiving block (41) is slidably arranged in the sliding groove (6), and the receiving member (4) also includes a first driving member for driving the receiving block (41) to slide in the sliding groove (6); The chute (6) passes through the receiving plate (2), the bottom of the receiving block (41) is flush with the bottom of the receiving plate (2), and the two sides of the receiving block (41) are slidably engaged with the side walls of the chute (6). After the placement notch (3) is located on the test bench (13), the bottom of the receiving block (41) is supported on the test bench (13), and the surface of the receiving block (41) facing away from the bottom wall of the chute (6) is inclined toward the top surface of the placement notch (3).

2. The pressure device for testing highway engineering raw materials according to claim 1, characterized in that: The positioning member (5) comprises a positioning rod (51) slidably arranged in the placement notch (3); the positioning rod (51) is located on the side wall of the placement notch (3); the positioning rod (51) is located above the receiving block (41); the sliding direction of the positioning rod (51) is perpendicular to the side wall of the placement notch (3); and the positioning member (5) further comprises a second driving member for driving the positioning rod (51) to slide.

3. A pressure device for testing highway engineering raw materials according to claim 1, characterized in that: A plurality of mounting cavities (7) are formed in the bottom wall of the receiving plate (2). The mounting cavities (7) are located between adjacent placing notches (3). The openings of the mounting cavities (7) face the workbench (12). A brush rod (8) is rotatably arranged in the mounting cavity (7). The rotation axis of the brush rod (8) is perpendicular to the top wall of the mounting cavity (7). A third driving member is arranged in the mounting cavity (7) for driving the brush rod (8) to rotate to clean the surface of the test bench (13).

4. A pressure device for testing highway engineering raw materials according to claim 1, characterized in that: A rotating rod (10) is rotatably arranged on the workbench (12). The receiving plate (2) is coaxially arranged on the rotating rod (10). The rotating rod (10) includes a first rod body (101) and a second rod body (102). The first rod body (101) is rotatably arranged on the workbench (12). The receiving plate (2) is arranged on the second rod body (102). The first rod body (101) and the second rod body (102) are movably connected. The rotating rod (10) further includes a connecting member (17) coaxially connecting the first rod body (101) and the second rod body (102) and enabling the first rod body (101) and the second rod body (102) to have the same movement tendency.

5. A pressure device for testing highway engineering raw materials according to claim 4, characterized in that: The connecting member (17) includes a sleeve (171) sleeved on the first rod body (101). Guide strips (172) protrude from the inner wall of the sleeve (171). A plurality of clamping grooves (173) for clamping the guide strips (172) are formed in the outer wall of the second rod body (102). A plurality of the clamping grooves (173) are formed and are evenly arranged circumferentially along the outer wall of the second rod body (102).

6. The pressure device for testing highway engineering raw materials according to claim 4, characterized in that: The butt ends of the first rod body (101) and the second rod body (102) are both frustum-shaped and magnets are arranged on the inclined surfaces of the butt ends. After the second rod body (102) is separated from the first rod body (101), the edge of the receiving plate (2) is received on the workbench (12), and the inclined surface of the butt end of the second rod body (102) is adsorbed on the inclined surface of the butt end of the first rod body (101) to place the receiving plate (2) on the workbench (12) in an inclined state.

7. The pressure device for testing highway engineering raw materials according to claim 1, characterized in that: A socket cover (18) is arranged on the receiving plate (2). Both ends of the socket cover (18) are open. The socket cover (18) is frustum-shaped and the diameter gradually decreases. The circumference of the free end of the socket cover (18) is smaller than the circumference of the test block and is sleeved on the test block. The socket cover (18) is made of an elastic material and is sleeved on the side wall of the test block near the compression end.

8. A pressure device for testing highway engineering raw materials according to claim 7, characterized in that: A rectangular frame (19) is arranged in the socket port of the socket cover (18). The frame of the rectangular frame (19) is made of telescopic rods, and a spring for driving the telescopic rods to retract is arranged inside.

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