Concrete slump inspection device

Abstract

The invention belongs to the technical field of slump inspection, and particularly relates to a concrete slump inspection device, which comprises a support disc, the inspection device is arranged above the supporting disc, and the inspection device comprises a slump cylinder and a guide hopper; the slump cylinder is formed by splicing two bilaterally symmetrical halves, and the top of the slump cylinder is sleeved with the guide hopper; the scraping plate is used for scraping concrete at the top of the slump cylinder; the separation assembly is used for driving the left half and the right half of the slump cylinder to move in opposite directions; the separation assembly comprises supports symmetrically arranged on the two sides of the slump cylinder, fixing rods are fixed to the opposite side walls of the supports on the two sides correspondingly, and the fixing rods are slidably sleeved with sleeve rods. The left half and the right half of the slump cylinder are driven by the separation assembly to move in opposite directions, so that the phenomenon that a concrete pile inclines due to misoperation when the slump cylinder is manually and vertically taken down is effectively avoided, the accuracy of a concrete inspection result is improved, and the concrete testing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of slump testing, in particular to a concrete slump testing device. Background Art

[0002] Slump refers to the workability of concrete. Specifically, it is to ensure the normal progress of construction, which includes the water retention, fluidity and cohesion of concrete. Slump is a quantitative indicator to measure its degree, which is used to judge whether the construction can proceed normally.

[0003] Slump, as an important quantitative indicator of workability, is often used to evaluate the workability of concrete and its suitability for different construction requirements. Specifically, the slump test determines the fluidity of concrete by measuring the collapse height of concrete under specific conditions. The traditional method of testing the slump of concrete is to place a slump cone on a stable and non-absorbent rigid flat plate, install a funnel above the slump cone, and use a sampling device to load the concrete into the slump cone in three layers. The height of each layer of concrete filling is about one-third of the height of the slump cone, and each layer needs to be tamped 25 times along the spiral line from the edge to the center with a tamping rod to ensure that the concrete is full and dense. After the concrete is filled, use a trowel to smooth the mouth of the cone and immediately lift the slump cone vertically. At this time, the concrete collapses due to the loss of support. Then the height of the concrete after collapse is measured with a ruler to finally get the slump value.

[0004] However, the existing test method relies on manual operation, and the test process requires the slump cone to be lifted vertically. This operation not only requires the tester to have certain operating experience and precise techniques, but also has certain operating errors. In particular, when the slump cone is lifted vertically, improper operation may cause uneven collapse of the concrete, thereby affecting the accuracy of the test results. To this end, the present invention provides a concrete slump test device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a concrete slump testing device according to the present invention comprises: Support plate; An inspection device, which is arranged above the support plate, and comprises a collapse cone and a guide hopper; the collapse cone is formed by splicing two halves that are symmetrical on both sides, and the guide hopper is sleeved on the top of the collapse cone; A scraper, the scraper is used to scrape the concrete on the top of the collapse cylinder; A separation component is used to drive the left and right halves of the collapse cylinder to move in opposite directions; the separation component includes brackets symmetrically arranged on both sides of the collapse cylinder, and the brackets on both sides are respectively fixed with fixed rods on the opposite side walls, and a sleeve rod is slidably sleeved on the fixed rod, and the sleeve rod is fixed on the side wall of the collapse cylinder at one end away from the fixed rod, and a bidirectional screw rod is rotatably installed between the brackets on both sides, and connecting rods are respectively fixed on the sleeve rods on both sides, and a threaded sleeve is fixed on the top of the connecting rod, and the threaded sleeve is threadedly connected to the bidirectional screw rod.

[0007] Preferably, a bottom plate is fixed under the support plate, a ring-shaped slide rail is provided on the side wall of the support plate, a T-shaped slider is fixed on the bottom side wall of the bracket, the slider is slidably arranged inside the slide rail, and the slider is adapted to the slide rail.

[0008] Preferably, a connecting ring is provided between the supporting plate and the fixing ring, and the connecting ring is fixedly connected to the bracket.

[0009] Preferably, a fixing ring is fixed on the top of the base plate, and the fixing ring is sleeved on the outside of the supporting plate. Magnetic blocks are evenly distributed on the outer wall of the fixing ring. A sliding cavity is provided in the middle of the fixing rod, and a movable rod is slidably installed in the sliding cavity. One end of the movable rod extends into the inner cavity of the sleeve rod and a fixing block 1 is fixed on the end portion, and the fixing block 1 is adjacent to the outer wall of the collapse cylinder. The other end of the movable rod extends into a through hole opened in the lower part of the bracket and a fixing block 2 is fixed on the end portion, and a spring 1 is sleeved on the movable rod.

[0010] Preferably, a knocking block is fixed to the side wall of the fixed block 1 close to the collapse cylinder, and a spring 2 is sleeved on the outer side of the knocking block, and the spring 2 is fixedly connected to the fixed block 1.

[0011] Preferably, a stepped groove is provided on the top of the collapse cone, and the guide hopper is sleeved on the outside of the stepped groove.

[0012] Preferably, a slide rod is rotatably mounted on the support plate, a slide hole is opened at one end of the scraper, the slide rod slides through the slide hole, and scale lines are provided on the surface of the slide rod.

[0013] Preferably, the collecting grooves are symmetrically fixed on both side walls of the collapse cone, and the top of the collecting groove is flush with the top of the collapse cone.

[0014] Preferably, the height of the sliding rod is smaller than the height of the bidirectional screw rod.

[0015] Preferably, a threaded hole is formed at the end of the scraper, and a locking bolt is threadedly connected in the threaded hole.

[0016] The beneficial effects of the present invention are as follows: 1. The concrete slump testing device described in the present invention drives the left and right halves of the slump cone to move in opposite directions through a separation component, thereby effectively avoiding the skewness of the concrete pile due to improper operation when manually removing the slump cone vertically, so as to make the test result more accurate.

[0017] 2. The concrete slump testing device described in the present invention can drive the two halves of the slump cylinder to rotate synchronously by rotating the bracket before scraping the top of the concrete in the slump cylinder. At this time, the concrete pile adheres to the surface of the support plate, and the slump cylinder and the concrete pile rotate relatively to separate the concrete from the inner wall of the slump cylinder, so that the surface of the concrete pile becomes smooth. When the slump cylinder is separated to both sides, the stones in the concrete pile are not easy to adhere to the inner wall of the slump cylinder and be taken away, thereby ensuring that the outer surface of the concrete pile is flat, which can avoid uneven force caused by partial loss of the concrete surface and affect the testing structure; in addition, relative rotation can avoid concrete blocks from adhering to the outer wall of the slump cylinder, reducing the difficulty of subsequent cleaning of the slump cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a stereogram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 yes Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 4 yes Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 5 yes Figure 3 A magnified schematic diagram of the structure at C in the middle; Figure 6 It is a schematic diagram of the connection position of the slide bar and the scraper of the present invention.

[0020] In the figure: 1. bottom plate; 2. support plate; 3. collapse cylinder; 4. guide hopper; 5. bracket; 6. bidirectional screw rod; 7. connecting rod; 8. sleeve rod; 9. fixed rod; 10. threaded sleeve; 11. fixed ring; 12. magnetic block; 13. slide rod; 14. scraper; 15. collecting trough; 16. slider; 17. movable rod; 18. spring one; 19. fixed block one; 20. fixed block two; 21. slide rail; 22. step groove; 23. knocking block; 24. spring two; 25. scale line; 26. locking bolt; 27. connecting ring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] Embodiment 1: Figures 1 to 6 As shown, a concrete slump testing device according to an embodiment of the present invention comprises: Support plate 2; An inspection device, which is arranged above the support plate 2, and comprises a collapse cone 3 and a guide hopper 4; the collapse cone 3 is formed by splicing two halves that are symmetrical on both sides, and the guide hopper 4 is sleeved on the top of the collapse cone 3; A scraper 14, which is used to scrape the concrete on the top of the collapse cone 3; A separation component is used to drive the left and right halves of the collapse cone 3 to move in opposite directions; the separation component includes brackets 5 symmetrically arranged on both sides of the collapse cone 3, the brackets 5 on both sides are respectively fixed with fixed rods 9 on the opposite side walls, the fixed rods 9 are slidably sleeved with sleeve rods 8, and the sleeve rods 8 are fixed to the side wall of the collapse cone 3 at one end away from the fixed rods 9, and a bidirectional screw rod 6 is rotatably installed between the brackets 5 on both sides, and connecting rods 7 are respectively fixed on the sleeve rods 8 on both sides, and a threaded sleeve 10 is fixed on the top of the connecting rod 7, and the threaded sleeve 10 is threadedly connected with the bidirectional screw rod 6; During operation, the bidirectional screw rod 6 is rotated by the handle to drive the two halves of the collapse cone 3 to synchronously move toward the middle and fit tightly together. Then, the guide hopper 4 is sleeved on the top of the collapse cone 3, and the concrete to be tested is added to the collapse cone 3 in batches. After each addition of concrete, the concrete is compacted using a tamping rod. Then, the guide hopper 4 is removed. Then, the scraper 14 is used to fit the top of the collapse cone 3 to horizontally scrape off excess concrete. Then, the bidirectional screw rod 6 is rotated in the opposite direction to drive the two halves of the collapse cone 3 to move to both sides. Then, the concrete collapses naturally, and the slump of the concrete to be tested is known by measuring the height of the collapse. In addition, the sleeve rod 8 and the fixed rod 9 cooperate to make the collapse cone 3 stably separated to both sides, thereby effectively avoiding the skewness of the concrete pile due to improper operation when the collapse cone 3 is manually removed vertically, so as to make the test result more accurate.

[0023] A bottom plate 1 is fixed below the support plate 2, a circular slide rail 21 is provided on the side wall of the support plate 2, a T-shaped slider 16 is fixed on the bottom side wall of the bracket 5, the slider 16 is slidably arranged inside the slide rail 21, and the slider 16 is adapted to the slide rail 21; During operation, the T-shaped slider 16 and the slide rail 21 cooperate to make the two side brackets 5 stably arranged on both sides of the support plate. Before scraping the top of the concrete in the collapse cylinder 3, the two halves of the collapse cylinder 3 can be driven to rotate synchronously by rotating the bracket 5. At this time, the concrete pile adheres to the surface of the support plate 2, and the collapse cylinder 3 and the concrete pile rotate relative to each other to separate the concrete from the inner wall of the collapse cylinder 3, so that the surface of the concrete pile becomes smooth. When the collapse cylinder 3 is separated to both sides, the stones in the concrete pile are not easy to adhere to the inner wall of the collapse cylinder 3 and be taken away, thereby ensuring that the outer surface of the concrete pile is flat, which can avoid uneven force caused by partial loss of the concrete surface and affect the inspection structure; in addition, relative rotation can avoid concrete blocks from adhering to the outer wall of the collapse cylinder 3, reducing the difficulty of subsequent cleaning of the collapse cylinder 3.

[0024] A connecting ring 27 is provided between the support plate 2 and the fixing ring 11, and the connecting ring 27 is fixedly connected to the bracket 5; when working, the brackets 5 on both sides are fixed together by the connecting ring 27, so that the brackets 5 are stably connected together, and at the same time, the brackets 5 on both sides are kept in a vertical state. In addition, the connecting ring 27 is slidably sleeved on the outside of the support plate 2, and the gap between the support plate 2 and the fixing ring 11 is filled by the connecting ring 27 to prevent concrete from entering the gap, so as to protect the slider 16 and the slide rail 21 from being interfered by the concrete.

[0025] A fixing ring 11 is fixed on the top of the bottom plate 1, and the fixing ring 11 is sleeved on the outside of the support plate 2. Magnetic blocks 12 are evenly distributed on the outer wall of the fixing ring 11. A sliding cavity is provided in the middle of the fixing rod 9, and a movable rod 17 is slidably installed in the sliding cavity. One end of the movable rod 17 extends into the inner cavity of the sleeve rod 8 and a fixing block 19 is fixed on the end. The fixing block 19 is adjacent to the outer wall of the collapse cylinder 3. The other end of the movable rod 17 extends into the through hole opened at the lower part of the bracket 5 and a fixing block 20 is fixed on the end. A spring 18 is sleeved on the movable rod 17. During operation, when the collapse cylinder 3 is driven to rotate by the bracket 5, the fixed rod 9 and the sleeve rod 8, when the fixed block 20 moves to be opposite to the magnetic block 12, the magnetic block 12 can attract the fixed block 20, and then pull the fixed block 19 to move away from the collapse cylinder 3 through the movable rod 17. At this time, the spring 18 is compressed. When the fixed block 20 is misaligned with the magnetic block 12, the spring 18 rebounds and pushes the fixed block 19 to move in the opposite direction, so that the fixed block 19 hits the outer wall of the collapse cylinder 3. The vibration generated helps to further discharge the air inside the concrete in the cylinder, so as to make the concrete pile more compact. In addition, the concrete block is quickly separated from the inner wall of the collapse cylinder 3 through vibration, which helps to separate the two halves of the collapse cylinder 3 to both sides.

[0026] A knocking block 23 is fixed to the fixed block 19 near the side wall of the collapse cylinder 3, and a spring 24 is sleeved on the outer side of the knocking block 23, and the spring 24 is fixedly connected to the fixed block 19; during operation, when the fixed block 19 hits the collapse cylinder 3 under the rebound action of the spring 18, the knocking block 23 first contacts the outer wall of the collapse cylinder 3 to achieve the knocking effect; at the same time, the spring 24 is squeezed by the fixed block 19, and the fixed block 19 and the knocking block 23 are pushed by the spring 24 to move in the opposite direction and separate from the cylinder wall, so that the fixed block 19 and the knocking block 23 are driven to reciprocate through the cooperation of the spring 18 and the spring 24, thereby achieving multiple knockings, making the concrete pile more compact.

[0027] A stepped groove 22 is provided on the top of the collapse cone 3, and the guide hopper 4 is sleeved on the outside of the stepped groove 22; when working, the stepped groove 22 is provided so that the guide hopper 4 can be stably sleeved on the top of the collapse cone 3, thereby facilitating the addition of concrete into the collapse cone 3.

[0028] A slide bar 13 is rotatably mounted on the support plate 2, and a slide hole is opened at one end of the scraper 14, and the slide bar 13 slides through the slide hole, and a scale line 25 is provided on the surface of the slide bar 13; when working, the scraper 14 rotates with the slide bar 13 as the center of the circle, so that the concrete on the top of the collapse cylinder 3 can be scraped flat by the scraper 14, and the scraper 14 can move up and down along the slide bar 13, and the scale line 25 on the slide bar 13 takes the top of the collapse cylinder as the zero scale. When the collapse height of the concrete needs to be measured, the scraper 14 is moved downward so that the scraper 14 overlaps the top of the naturally sinking concrete pile, and the bottom of the scraper 14 on the slide bar 13 is read. The scale line 25 shown can quickly measure the slump of concrete without the need to use a measuring ruler for measurement, which makes the operation more convenient. In addition, after measuring the slump, the scraper 14 can be further moved down, and then the side wall of the concrete pile can be knocked by the scraper 14 to observe whether the concrete pile gradually sinks as a whole, so as to judge the cohesion of the concrete. Furthermore, the slide bar 13 can be rotatably installed on the top of the connecting ring 27, so that the positions of the slide bar 13 and the scraper 14 can be changed by rotating the connecting ring 27, so that the concrete pile can be knocked in different directions by the scraper 14, so that the cohesion of the concrete is more obvious and convenient to observe.

[0029] The collecting grooves 15 are symmetrically fixed on the two side walls of the collapse cone 3, and the top of the collecting grooves 15 is flush with the top of the collapse cone 3. During operation, the collecting grooves 15 are provided to collect the concrete scraped by the scraper 14 to prevent the concrete from falling onto the support plate 2 and causing pollution. At the same time, the scraper 14 can be guided by the collecting grooves 15. When the scraper 14 moves along the top of the collecting grooves 15, the excess concrete on the top of the collapse cone 3 can be accurately scraped flat, thereby reducing the difficulty of work and improving work efficiency.

[0030] The height of the slide bar 13 is smaller than that of the bidirectional screw rod 6 ; during operation, the scraper 14 is conveniently installed and removed from the top of the slide bar 13 , and will not be affected by the connecting rods 7 on both sides during the installation and removal process.

[0031] Embodiment 2: Figure 6 As shown, compared with Example 1, another implementation of the present invention is: a threaded hole is opened at the end of the scraper 14, and a locking bolt 26 is threadedly connected in the threaded hole; during operation, when the slump needs to be detected, the scraper 14 is overlapped on the top of the concrete, and then the scraper 14 is locked by tightening the locking bolt 26. At this time, the scale on the slide bar 13 can be accurately read, avoiding inaccurate measurement results due to hand shaking during the reading process; in addition, by locking the scraper 14, it is also convenient to knock on the side wall of the concrete pile by rotating the slide bar 13 and the scraper 14, so as to judge the cohesion of the concrete.

[0032] Working principle: Turn the bidirectional screw 6 by the handle to drive the two halves of the collapse cone 3 to move together and fit tightly in the middle simultaneously, then set the guide hopper 4 on the top of the collapse cone 3, add the concrete to be tested into the collapse cone 3 in batches, use a tamping rod to compact the concrete after adding the concrete each time, then remove the guide hopper 4, and then use a scraper 14 to fit the top of the collapse cone 3 to horizontally scrape off the excess concrete, and then rotate the bidirectional screw 6 in the opposite direction to drive the two halves of the collapse cone 3 to move to both sides, and then the concrete collapses naturally, and the slump of the concrete to be tested is known by measuring the height of the collapse; in addition, the sleeve rod 8 and the fixed rod 9 cooperate to make the collapse cone 3 stably separated to both sides, thereby effectively avoiding the skewness of the concrete pile due to improper operation when the collapse cone 3 is manually removed vertically, so as to make the test result more accurate; Before the top of the concrete in the slump cone 3 is scraped and leveled, the rotating bracket 5 can drive the two halves of the slump cone 3 to rotate synchronously. At this time, the concrete pile adheres to the surface of the support plate 2, and the slump cone 3 and the concrete pile rotate relatively to separate the concrete from the inner wall of the slump cone 3, so that the surface of the concrete pile becomes smooth. When the slump cone 3 is separated to both sides, the stones in the concrete pile are not easy to adhere to the inner wall of the slump cone 3 and be taken away, thereby ensuring that the outer surface of the concrete pile is flat. This can avoid uneven force caused by partial loss of the concrete surface, which affects the inspection structure; in addition, the relative rotation prevents concrete blocks from adhering to the outer wall of the slump cone 3, reducing the difficulty of subsequent cleaning of the slump cone 3; During the process of driving the collapse cylinder 3 to rotate by the bracket 5, the fixing rod 9 and the sleeve rod 8, when the fixing block 20 moves to be opposite to the magnetic block 12, the magnetic block 12 can attract the fixing block 20, and then pull the fixing block 19 to move away from the collapse cylinder 3 through the movable rod 17. At this time, the spring 18 is compressed. When the fixing block 20 and the magnetic block 12 are misaligned, the spring 18 rebounds and pushes the fixing block 19 to move in the opposite direction, so that the fixing block 19 hits the outer wall of the collapse cylinder 3. The vibration generated helps to further discharge the air inside the concrete in the cylinder, so as to make the concrete pile more compact. The external vibration makes the concrete block separate quickly from the inner wall of the collapse cylinder 3, which helps to separate the two halves of the collapse cylinder 3 to both sides; when the fixed block 19 hits the collapse cylinder 3 under the rebound action of the spring 18, the knocking block 23 first contacts the outer wall of the collapse cylinder 3 to achieve the knocking effect; at the same time, the spring 24 is squeezed by the fixed block 19, and the fixed block 19 and the knocking block 23 are pushed by the spring 24 to move in the opposite direction and separate from the cylinder wall. In this way, the fixed block 19 and the knocking block 23 are driven to reciprocate through the cooperation of the spring 18 and the spring 24, thereby achieving multiple knockings, making the concrete pile more compact.

[0033] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A concrete slump testing device, characterized in that: include: Support plate (2); An inspection device, the inspection device being arranged above the support plate (2), the inspection device comprising a collapse cone (3) and a material guide hopper (4); the collapse cone (3) being formed by splicing two halves that are symmetrical on both sides, and the material guide hopper (4) being sleeved on the top of the collapse cone (3); A scraper (14), wherein the scraper (14) is used to scrape the concrete on the top of the slump cone (3) to make it flat; A separation component is provided, the separation component is used to drive the left and right halves of a collapse cone (3) to move in opposite directions; the separation component comprises brackets (5) symmetrically arranged on both sides of the collapse cone (3), the brackets (5) on both sides are respectively fixed with fixed rods (9) on opposite side walls, the fixed rods (9) are slidably sleeved with sleeve rods (8), the sleeve rods (8) are fixed to the side wall of the collapse cone (3) at one end away from the fixed rods (9), a bidirectional screw rod (6) is rotatably installed between the brackets (5) on both sides, the sleeve rods (8) on both sides are respectively fixed with connecting rods (7), the connecting rods (7) are fixed with threaded sleeves (10) at the top ends thereof, and the threaded sleeves (10) are threadedly connected to the bidirectional screw rod (6).

2. A concrete slump testing device according to claim 1, characterized in that: A bottom plate (1) is fixed below the support plate (2), a side wall of the support plate (2) is provided with an annular slide rail (21), a T-shaped slide block (16) is fixed to the bottom side wall of the bracket (5), the slide block (16) is slidably arranged inside the slide rail (21), and the slide block (16) is adapted to fit the slide rail (21).

3. A concrete slump testing device according to claim 2, characterized in that: A connecting ring (27) is provided between the supporting plate (2) and the fixing ring (11), and the connecting ring (27) is fixedly connected to the bracket (5).

4. A concrete slump testing device according to claim 3, characterized in that: A fixing ring (11) is fixed on the top of the bottom plate (1), and the fixing ring (11) is sleeved on the outside of the support plate (2). Magnetic blocks (12) are evenly distributed on the outer wall of the fixing ring (11). A sliding cavity is provided in the middle of the fixing rod (9), and a movable rod (17) is slidably installed in the sliding cavity. One end of the movable rod (17) extends into the inner cavity of the sleeve rod (8) and a fixing block 1 (19) is fixed on the end. The fixing block 1 (19) is adjacent to the outer wall of the collapse cylinder (3). The other end of the movable rod (17) extends into a through hole opened at the lower part of the bracket (5) and a fixing block 2 (20) is fixed on the end. A spring 1 (18) is sleeved on the movable rod (17).

5. A concrete slump testing device according to claim 4, characterized in that: A knocking block (23) is fixed to the fixed block 1 (19) near the side wall of the collapse cylinder (3), and a spring 2 (24) is sleeved on the outer side of the knocking block (23). The spring 2 (24) is fixedly connected to the fixed block 1 (19).

6. A concrete slump testing device according to claim 5, characterized in that: The top of the collapse cone (3) is provided with a stepped groove (22), and the guide hopper (4) is sleeved outside the stepped groove (22).

7. A concrete slump testing device according to claim 6, characterized in that: A slide rod (13) is rotatably mounted on the support plate (2), a slide hole is provided at one end of the scraper (14), the slide rod (13) slides through the slide hole, and a scale line (25) is provided on the surface of the slide rod (13).

8. A concrete slump testing device according to claim 7, characterized in that: The two side walls of the collapse cone (3) are symmetrically fixed with collecting grooves (15), and the top of the collecting groove (15) is flush with the top of the collapse cone (3).

9. A concrete slump testing device according to claim 8, characterized in that: The height of the sliding rod (13) is smaller than the height of the bidirectional screw rod (6).

10. A concrete slump testing device according to claim 9, characterized in that: A threaded hole is formed at the end of the scraper (14), and a locking bolt (26) is threadedly connected in the threaded hole.

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