Concrete mixture slump measuring device

Abstract

The invention discloses a concrete mixture slump measuring device which comprises a base and a sliding plate slidably mounted on the left side of the base, a slump cylinder is connected to the sliding plate through a driving mechanism, a filling mechanism is arranged on the right side of the base, and a knocking mechanism is arranged on the outer surface of the slump cylinder. The knocking mechanism comprises a rectangular shell, a small motor, two groups of rotating shafts, two groups of rotating gears, two groups of fixed shells, two groups of knocking shafts, two groups of shifting pieces and two groups of knocking hammers. The device has the beneficial effects that the feeding hopper is matched with the rotating disc in the shell, so that the sampled concrete can be uniformly filled into the slump cylinder through the discharge hole, the discharge quantity of the concrete at the discharge hole can be adjusted by the guide plate, and the top of the slump cylinder can be automatically stricken by the scraper; two groups of knocking hammers in the rectangular shell knock the slump barrel in a reciprocating manner, and the knocking hammers are uniformly distributed on the outer surface of the slump barrel, so that gaps generated in the concrete filling process are effectively eliminated, and the subsequent slump measurement result is improved.

Description

Technical Field

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

[0002] Concrete slump refers to the workability of concrete, specifically the ability to ensure smooth construction. This includes the concrete's water retention, fluidity, and cohesion. Slump is a quantitative indicator used to measure the degree of concrete slump and is used to determine whether construction can proceed smoothly.

[0003] Slump testing method: Use a trumpet-shaped slump cone and fill it with concrete in three batches. After each filling, use a tamping hammer to evenly strike the wall from the outside inwards. After compaction, smooth the surface. Then, lift the cone. The concrete will collapse under its own weight. The slump is calculated by subtracting the height of the highest point of the concrete after collapse from the cone height (300mm). If the difference is 10mm, the slump is 10.

[0004] However, when the sampled concrete is filled into the slump cone, due to the small mouth of the slump cone, concrete is easily spilled during the filling process. In addition, the manually filled concrete is uneven, and the manual tamping method cannot effectively eliminate the internal voids of the concrete, which affects the subsequent slump measurement results.

[0005] It should be noted that the above content falls within the technical knowledge of the inventor and does not necessarily constitute prior art. Summary of the Invention

[0006] In view of the above defects, the present invention provides a concrete mixture slump measuring device to solve the problem of concrete slump measurement.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A concrete mixture slump measuring device comprises a base and a sliding plate slidably mounted on the left side of the base, a slump cone is connected to the sliding plate via a driving mechanism, a filling mechanism is provided on the right side of the base, and a knocking mechanism is provided on the outer surface of the slump cone; The striking mechanism includes a rectangular shell, a small motor, two sets of rotating shafts, two sets of rotating gears, two sets of fixed shells, two sets of striking shafts, two sets of toggling plates and two sets of striking hammers. The rectangular shell is fixedly mounted on the outer surface of the collapse cylinder, the small motor is horizontally installed in the rectangular shell, the two sets of rotating shafts are movably installed on the inner wall of the rectangular shell, the two sets of rotating gears are installed at the center of the two sets of rotating shafts, the two sets of fixed shells are installed at the upper end of the inner wall of the rectangular shell, the rear ends of the two sets of striking shafts are movably inserted in the two sets of fixed shells, the two sets of toggling plates are installed at the lower ends of the two sets of striking shafts, and are respectively fitted with the corresponding rotating gears, and the two sets of striking hammers are installed at the upper ends of the two sets of striking shafts, and are respectively fitted with the outer walls of the collapse cylinder.

[0008] Furthermore, the loading mechanism includes a machine body, a driving motor, a transmission shaft, a rotating shaft, a casing, a rotating disc, a discharge port, a feeding hopper, a group of scrapers and a number of spiral guide blades. The machine body is fixedly mounted on the base, the driving motor is horizontally mounted on the right side of the base, the transmission shaft is movably mounted on the right side of the machine body, the rotating shaft is movably inserted into the upper end of the machine body, the casing is fixedly mounted above the machine body, the rotating disc is mounted on the rotating shaft and is located inside the casing, the discharge port is opened on the left side of the bottom of the casing, the feeding hopper is fixedly mounted above the casing, a group of scrapers are mounted on both sides of the upper end of the rotating shaft and are in contact with the inner wall of the feeding hopper, and a number of spiral guide blades are evenly mounted on the rotating shaft and are located at the discharge port of the feeding hopper.

[0009] Furthermore, the rotating end of the driving motor is connected to the transmission shaft via a transmission chain, and the transmission shaft is connected to the rotating shaft via a set of bevel gears.

[0010] Furthermore, a material guide plate is hinged at the rear end of the left side of the shell, a threaded rod is threadedly inserted at the front end of the left side of the shell, a rotating handle is installed at the front end of the threaded rod, the rear end of the threaded rod is connected to the material guide plate through a set of locking nuts, and an adjustment hole corresponding to the threaded rod is opened on the material guide plate.

[0011] Furthermore, a scraper motor is installed on the left side of the shell, a scraper shaft is movably installed on the top of the discharge port through a connecting plate, a scraper is installed on the bottom of the scraper shaft, and the rotating end of the scraper motor and the scraper shaft are connected through a transmission chain.

[0012] Furthermore, the driving mechanism includes a group of fixed slide rails, a group of synchronous cylinders, a servo cylinder, a push plate, a connecting sleeve and a supporting plate. A group of fixed slide rails is installed on the base, and the bottom of the sliding plate is slidably installed on a group of fixed slide rails. A group of synchronous cylinders is horizontally installed on the left side of the base, and the telescopic ends are respectively connected to the two sides of the sliding plate. The servo cylinder is installed on the left side of the sliding plate, and the telescopic end is vertically upward. The push plate is installed on the telescopic end of the servo cylinder. The connecting sleeve is fixedly sleeved on the outer surface of the upper end of the collapse cylinder and is connected to the front end of the push plate. The supporting plate is placed on the sliding plate.

[0013] Furthermore, a guide sleeve is installed on the left side of the servo cylinder, a guide rod is movably inserted in the guide sleeve, and the upper end of the guide rod is connected to the push plate.

[0014] Furthermore, the rotating end of the small motor is connected to one of the rotating shafts via a set of transmission gears, and adjacent sets of rotating shafts are connected via universal joints.

[0015] Furthermore, torsion springs are respectively installed in the two sets of fixed shells.

[0016] The present invention provides a concrete mixture slump measuring device, which has the following beneficial effects: a filling mechanism is provided on the right side of the base, and a feeding hopper is used to cooperate with a rotating disc in the housing to realize that the sampled concrete is evenly filled into the slump cone through the discharge port; a guide plate can adjust the concrete discharge amount of the discharge port; after filling, a scraper can automatically scrape and level the top of the slump cone; The striking mechanism uses two sets of striking hammers in a rectangular shell to strike the slump cone reciprocatingly. The striking hammers are evenly distributed on the outer surface of the slump cone to effectively eliminate the internal voids during the concrete filling process, thereby improving the subsequent slump measurement results. The driving mechanism uses a set of synchronous cylinders to drive the slump cone to move horizontally, which is convenient for filling concrete. The servo cylinder drives the slump cone to lift, which facilitates the collapse of concrete under its own weight and facilitates subsequent measurements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a concrete mixture slump measuring device according to the present invention.

[0018] Figure 2 It is a schematic diagram of the filling mechanism of the present invention.

[0019] Figure 3 This is a top view of the housing of the present invention.

[0020] Figure 4 Schematic diagram of the guide plate of the present invention.

[0021] Figure 5 This is a top view of the sliding plate of the present invention.

[0022] Figure 6 Schematic diagram of the driving mechanism of the present invention.

[0023] Figure 7 This is a cross-sectional view of the rectangular housing of the present invention.

[0024] Figure 8 This is a schematic diagram of the transmission of two sets of rotating shafts of the present invention.

[0025] Figure 9 It is a schematic diagram of the transmission of the percussion hammer of the present invention.

[0026] In the figure: 1. Base; 2. Sliding plate; 3. Slump cone; 4. Rectangular housing; 5. Small motor; 6. Rotating shaft; 7. Rotating gear; 8. Fixed housing; 9. Percussion shaft; 10. Paddle; 11. Percussion hammer; 12. Machine body; 13. Driving motor; 14. Transmission shaft; 15. Rotating shaft; 16. Housing; 17. Rotating disc; 18. Discharge port; 19. Feed hopper; 20. Scraper; 21. Spiral guide blade; 22. Transmission chain 1 23. Bevel gear; 24. Guide plate; 25. Threaded rod; 26. Turning handle; 27. Locking nut; 28. Adjustment hole; 29. Scraper motor; 30. Connecting plate; 31. Scraper shaft; 32. Scraper; 33. Transmission chain 2; 34. Fixed slide rail; 35. Synchronous cylinder; 36. Servo cylinder; 37. Push plate; 38. Connecting sleeve; 39. Carrying plate; 40. Guide sleeve; 41. Guide rod; 42. Transmission gear; 43. Universal joint. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1-9 The figure shows a concrete mixture slump measuring device, comprising a base 1 and a sliding plate 2 slidably mounted on the left side of the base 1. The sliding plate 2 is connected to a slump cone 3 via a driving mechanism. A filling mechanism is provided on the right side of the base 1, and a knocking mechanism is provided on the outer surface of the slump cone 3. The striking mechanism includes a rectangular shell 4, a small motor 5, two groups of rotating shafts 6, two groups of rotating gears 7, two groups of fixed shells 8, two groups of striking shafts 9, two groups of toggling pieces 10 and two groups of striking hammers 11. The rectangular shell 4 is fixedly sleeved on the outer surface of the collapse cylinder 3, the small motor 5 is horizontally installed in the rectangular shell 4, the two groups of rotating shafts 6 are movably installed on the inner wall of the rectangular shell 4, the two groups of rotating gears 7 are installed at the center of the two groups of rotating shafts 6, the two groups of fixed shells 8 are installed at the upper end of the inner wall of the rectangular shell 4, the rear ends of the two groups of striking shafts 9 are movably inserted in the two groups of fixed shells 8, the two groups of toggling pieces 10 are installed at the lower ends of the two groups of striking shafts 9, and are respectively fitted with the corresponding rotating gears 7, and the two groups of striking hammers 11 are installed at the upper ends of the two groups of striking shafts 9, and are respectively fitted with the outer walls of the collapse cylinder 3.

[0028] The filling mechanism includes a body 12, a drive motor 13, a transmission shaft 14, a rotating shaft 15, a casing 16, a rotating disc 17, a discharge port 18, a hopper 19, a group of scrapers 20 and a number of spiral guide blades 21. The body 12 is fixedly mounted on the base 1, the drive motor 13 is horizontally mounted on the right side of the base 1, the transmission shaft 14 is movably mounted on the right side of the body 12, the rotating shaft 15 is movably inserted at the upper end of the body 12, the casing 16 is fixedly mounted above the body 12, the rotating disc 17 is mounted on the rotating shaft 15 and is located in the casing 16, the discharge port 18 is opened on the left side of the bottom of the casing 16, the hopper 19 is fixedly mounted above the casing 16, a group of scrapers 20 are mounted on both sides of the upper end of the rotating shaft 15 and fit with the inner wall of the hopper 19, and a number of spiral guide blades 21 are evenly mounted on the rotating shaft 15 and located at the discharge port of the hopper 19.

[0029] The rotating end of the driving motor 13 is connected to the transmission shaft 14 through a transmission chain 22, and the transmission shaft 14 is connected to the rotating shaft 15 through a set of bevel gears 23.

[0030] A material guide plate 24 is hinged at the rear end of the left side of the shell 16, and a threaded rod 25 is threadedly inserted at the front end of the left side of the shell 16. A rotating handle 26 is installed at the front end of the threaded rod 25. The rear end of the threaded rod 25 is connected to the material guide plate 24 through a set of locking nuts 27, and an adjustment hole 28 corresponding to the threaded rod 25 is opened on the material guide plate 24.

[0031] A scraper motor 29 is installed on the left side of the shell 16, and a scraper shaft 31 is movably installed on the top of the discharge port 18 through a connecting plate 30. A scraper plate 32 is installed at the bottom of the scraper shaft 31, and the rotating end of the scraper motor 29 is connected to the scraper shaft 31 through a transmission chain 33.

[0032] The driving mechanism includes a group of fixed slide rails 34, a group of synchronous cylinders 35, a servo cylinder 36, a push plate 37, a connecting sleeve 38 and a supporting plate 39. A group of fixed slide rails 34 are installed on the base 1, and the bottom of the sliding plate 2 is slidably installed on a group of fixed slide rails 34. A group of synchronous cylinders 35 are horizontally installed on the left side of the base 1, and the telescopic ends are respectively connected to the two sides of the sliding plate 2. The servo cylinder 36 is installed on the left side of the sliding plate 2, and the telescopic end is vertically upward. The push plate 37 is installed on the telescopic end of the servo cylinder 36. The connecting sleeve 38 is fixedly sleeved on the outer surface of the upper end of the collapse cylinder 3 and is connected to the front end of the push plate 37. The supporting plate 39 is placed on the sliding plate 2.

[0033] A guide sleeve 40 is installed on the left side of the servo cylinder 36 . A guide rod 41 is movably inserted into the guide sleeve 40 . The upper end of the guide rod 41 is connected to the push plate 37 .

[0034] The rotating end of the small motor 5 is connected to one of the rotating shafts 6 via a group of transmission gears 42 , and adjacent groups of rotating shafts 6 are connected via universal joints 43 .

[0035] Torsion springs are respectively installed in the two sets of fixed shells 8.

[0036] The working principle of this embodiment is as follows: the electrical equipment used in the device is controlled by an external controller, the initial position of the sliding plate 2 is located on the left side of the base 1, and the bottom of the collapse cylinder 3 is pressed on the bearing plate 39. Figure 1 As shown, a group of synchronous cylinders 35 extend their telescopic ends, driving the sliding plate 2 to move to the right, so that the collapse cone 3 moves to the bottom of the discharge port 18, which is convenient for subsequent filling of concrete; During filling: the machine body 12 is fixedly mounted on the base 1, the drive motor 13 is horizontally mounted on the right side of the base 1, the transmission shaft 14 is movably mounted on the right side of the machine body 12 through a fastening bearing, the rotating shaft 15 is movably inserted into the upper end of the machine body 12 through a fastening bearing, the outer shell 16 is fixedly mounted on the upper part of the machine body 12 through an external connecting frame, the rotating disc 17 is mounted on the rotating shaft 15, and is located inside the outer shell 16, the discharge port 18 is opened on the left side of the bottom of the outer shell 16, the feeding hopper 19 is fixedly mounted above the outer shell 16 through an external connecting frame, a group of scrapers 20 are mounted on both sides of the upper end of the rotating shaft 15, and fit with the inner wall of the feeding hopper 19, a number of spiral guide blades 21 are evenly mounted on the rotating shaft 15, and are located at the discharge port of the feeding hopper 19, and there is a passage between the rotating end of the drive motor 13 and the transmission shaft 14. The transmission is connected through a transmission chain 22, and the transmission shaft 14 and the rotating shaft 15 are connected through a group of bevel gears 23. A guide plate 24 is hinged on the left rear end of the housing 16, and a threaded rod 25 is threadedly inserted at the front end of the left side of the housing 16. A rotating handle 26 is installed at the front end of the threaded rod 25. The rear end of the threaded rod 25 is connected to the guide plate 24 through a group of locking nuts 27, and an adjustment hole 28 corresponding to the threaded rod 25 is opened on the guide plate 24. A scraper motor 29 is installed on the left side of the housing 16, and a scraper shaft 31 is movably installed at the top of the discharge port 18 through a connecting plate 30. The scraper shaft 31 is movably inserted on the connecting plate 30 through a fastening bearing. A scraper plate 32 is installed at the bottom of the scraper shaft 31, and the rotating end of the scraper motor 29 and the scraper shaft 31 are connected through a transmission chain 2 33. Figure 2 — Figure 4As shown, the sampled concrete is first put into the feeding hopper 19, and the driving motor 13 drives the rotating shaft 15 to rotate through the transmission chain 22 and the transmission shaft 14. A group of scrapers 20 at the upper end of the rotating shaft 15 cooperates with a plurality of spiral guide blades 21 to guide the concrete in the feeding hopper 19 to the center of the rotating disc 17. At the same time, a group of scrapers 20 cooperates with a plurality of spiral guide blades 21 to fully stir the concrete. The rotating shaft 15 drives the rotating disc 17 to rotate clockwise, and cooperates with the guide plate 24 to rotate the rotating disc 17. The concrete on the moving disc 17 is evenly delivered to the discharge port 18 and finally filled into the slump cone 3. The user can adjust the deflection angle of the guide plate 24 by rotating the threaded rod 25, thereby adjusting the concrete discharge amount of the discharge port 18. A set of locking nuts 27 are used to lock and fix the threaded rod 25. After filling is completed, the rotating disc 17 stops working, the bottom of the scraper 32 is in contact with the top of the slump cone 3, and the scraper motor 29 drives the scraper 32 to rotate, cleaning the discharge port 18. At the same time, the top of the slump cone 3 can be automatically scraped and leveled. During knocking: the rectangular shell 4 is fixedly sleeved on the outer surface of the collapse cone 3, the small motor 5 is horizontally installed in the rectangular shell 4, the two sets of rotating shafts 6 are movably installed on the inner wall of the rectangular shell 4 through fastening bearings, the two sets of rotating gears 7 are installed at the center of the two sets of rotating shafts 6, the two sets of fixed shells 8 are installed on the upper end of the inner wall of the rectangular shell 4, the rear ends of the two sets of knocking shafts 9 are movably inserted in the two sets of fixed shells 8, the two sets of paddle pieces 10 are installed at the lower ends of the two sets of knocking shafts 9, and respectively fit with the corresponding rotating gears 7, the two sets of knocking hammers 11 are installed at the upper ends of the two sets of knocking shafts 9, and respectively fit with the outer wall of the collapse cone 3, the rotating end of the small motor 5 and one of the rotating shafts 6 are connected by a set of transmission gears 42, the adjacent sets of rotating shafts 6 are connected by a universal joint 43, and the two sets of fixed shells 8 are respectively installed with a torsion spring for resetting the knocking shaft 9. Figure 7 — Figure 9 As shown, when the slump cone 3 is filled with concrete, the knocking mechanism works synchronously. The small motor 5 drives the two sets of rotating shafts 6 to rotate through a set of transmission gears 42 and a universal joint 43. The two sets of rotating shafts 6 reciprocate by moving the paddle pieces 10 through two sets of rotating gears 7. The paddle pieces 10 reciprocate by striking the slump cone 3 through the striking shaft 9 and the striking hammers 11. The striking hammers 11 are evenly distributed on the outer surface of the slump cone 3 to effectively eliminate the internal voids generated during the concrete filling process, thereby improving the subsequent slump measurement results. During measurement: a set of fixed slide rails 34 are installed on the base 1, and the bottom of the sliding plate 2 is slidably installed on a set of fixed slide rails 34, a set of synchronous cylinders 35 are horizontally installed on the left side of the base 1, and the telescopic ends are respectively connected to the two sides of the sliding plate 2, the servo cylinder 36 is installed on the left side of the sliding plate 2, and the telescopic end is vertically upward, the push plate 37 is installed on the telescopic end of the servo cylinder 36, the connecting sleeve 38 is fixedly sleeved on the outer surface of the upper end of the collapse cylinder 3, and is connected to the front end of the push plate 37, the carrying plate 39 is placed on the sliding plate 2, and a guide sleeve 40 is installed on the left side of the servo cylinder 36, and a guide rod 41 is movably inserted in the guide sleeve 40, and the upper end of the guide rod 41 is connected to the push plate 37, as shown in FIG. Figure 5 and Figure 6 As shown, a group of synchronous cylinders 35 retract their telescopic ends to drive the sliding plate 2 to reset. Then, the servo cylinder 36 drives the slump cone 3 to rise through the push plate 37 and the connecting sleeve 38. The guide rod 41 plays a guiding role, which facilitates the concrete inside the slump cone 3 to collapse into the bearing plate 39 under its own weight. The user measures the height of the highest point of the concrete after the collapse. The height of the highest point of the concrete after the collapse is measured by subtracting the height of the highest point of the concrete after the collapse from the barrel height, which is called the slump. The use of the bearing plate 39 facilitates the subsequent cleaning of the concrete.

[0037] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Any changes that may be made to certain parts thereof by those skilled in the art all reflect the principles of the present invention and fall within the scope of protection of the present invention.

Claims

1. A concrete mixture slump measuring device, comprising a base (1) and a sliding plate (2) slidably mounted on the left side of the base (1), wherein a slump cone (3) is connected to the sliding plate (2) via a driving mechanism, and characterized in that: A filling mechanism is provided on the right side of the base (1), and a knocking mechanism is provided on the outer surface of the slump cylinder (3); The striking mechanism comprises a rectangular housing (4), a small motor (5), two sets of rotating shafts (6), two sets of rotating gears (7), two sets of fixed housings (8), two sets of striking shafts (9), two sets of toggling pieces (10) and two sets of striking hammers (11), wherein the rectangular housing (4) is fixedly sleeved on the outer surface of the collapse cylinder (3), the small motor (5) is horizontally mounted in the rectangular housing (4), the two sets of rotating shafts (6) are movably mounted on the inner wall of the rectangular housing (4), the two sets of rotating gears (7) are mounted at the centers of the two sets of rotating shafts (6), the two sets of fixed housings (8) are mounted on the upper ends of the inner wall of the rectangular housing (4), the rear ends of the two sets of striking shafts (9) are movably inserted in the two sets of fixed housings (8), the two sets of toggling pieces (10) are mounted on the lower ends of the two sets of striking shafts (9) and are respectively fitted with the corresponding rotating gears (7), and the two sets of striking hammers (11) are mounted on the upper ends of the two sets of striking shafts (9) and are respectively fitted with the outer walls of the collapse cylinder (3).

2. A concrete mixture slump measuring device according to claim 1, characterized in that: The loading mechanism comprises a machine body (12), a driving motor (13), a transmission shaft (14), a rotating shaft (15), a housing (16), a rotating disc (17), a discharge port (18), a feeding hopper (19), a set of scraper plates (20) and a plurality of spiral guide blades (21), wherein the machine body (12) is fixedly mounted on the base (1), the driving motor (13) is horizontally mounted on the right side of the base (1), the transmission shaft (14) is movably mounted on the right side of the machine body (12), and the rotating shaft (15) is movably inserted into the machine body (12). At the upper end, the housing (16) is fixedly mounted above the machine body (12), the rotating disc (17) is mounted on the rotating shaft (15) and is located inside the housing (16), the discharge port (18) is opened on the left side of the bottom of the housing (16), the feeding hopper (19) is fixedly mounted above the housing (16), a group of scrapers (20) are mounted on both sides of the upper end of the rotating shaft (15) and are in contact with the inner wall of the feeding hopper (19), and a plurality of spiral guide blades (21) are evenly mounted on the rotating shaft (15) and are located at the discharge port of the feeding hopper (19).

3. A concrete mixture slump measuring device according to claim 2, characterized in that: The rotating end of the driving motor (13) is connected to the transmission shaft (14) via a transmission chain (22), and the transmission shaft (14) is connected to the rotating shaft (15) via a set of bevel gears (23).

4. A concrete mixture slump measuring device according to claim 2, characterized in that: A guide plate (24) is hingedly connected to the rear end of the left side of the housing (16), a threaded rod (25) is threadedly inserted into the front end of the left side of the housing (16), a rotating handle (26) is installed at the front end of the threaded rod (25), and the rear end of the threaded rod (25) is connected to the guide plate (24) through a set of locking nuts (27), and an adjustment hole (28) corresponding to the threaded rod (25) is opened on the guide plate (24).

5. A concrete mixture slump measuring device according to claim 2, characterized in that: A scraper motor (29) is installed on the left side of the housing (16), a scraper shaft (31) is movably installed on the top of the discharge port (18) through a connecting plate (30), a scraper plate (32) is installed on the bottom of the scraper shaft (31), and the rotating end of the scraper motor (29) and the scraper shaft (31) are connected to each other through a transmission chain (33).

6. A concrete mixture slump measuring device according to claim 1, characterized in that: The driving mechanism includes a set of fixed slide rails (34), a set of synchronous cylinders (35), a servo cylinder (36), a push plate (37), a connecting sleeve (38) and a bearing plate (39), wherein the set of fixed slide rails (34) is mounted on the base (1), and the bottom of the sliding plate (2) is slidably mounted on the set of fixed slide rails (34), a set of synchronous cylinders (35) is horizontally mounted on the left side of the base (1), and the telescopic ends are respectively connected to the two sides of the sliding plate (2), the servo cylinder (36) is mounted on the left side of the sliding plate (2), and the telescopic ends are vertically upward, the pushing plate (37) is mounted on the telescopic end of the servo cylinder (36), the connecting sleeve (38) is fixedly sleeved on the outer surface of the upper end of the collapse cylinder (3), and is connected to the front end of the pushing plate (37), and the bearing plate (39) is placed on the sliding plate (2).

7. A concrete mixture slump measuring device according to claim 5, characterized in that: A guide sleeve (40) is installed on the left side of the servo cylinder (36), a guide rod (41) is movably inserted in the guide sleeve (40), and the upper end of the guide rod (41) is connected to the push plate (37).

8. A concrete mixture slump measuring device according to claim 1, characterized in that: The rotating end of the small motor (5) is connected to one of the rotating shafts (6) via a group of transmission gears (42), and adjacent groups of rotating shafts (6) are connected via universal joints (43).

9. A concrete mixture slump measuring device according to claim 1, characterized in that: Torsion springs are respectively installed in the two groups of fixed shells (8).

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