Concrete Rheological Property Testing Device

Abstract

The concrete rheological property testing device of the present invention belongs to the field of concrete rheological test devices, and includes a frame rod. A bottom plate is fixedly connected to the frame rod, or a lifting assembly is provided on the frame rod, and a bottom plate is arranged on the lifting assembly. It also includes two separating cylinder assemblies. The separating cylinder assembly includes: a slump cone unit, a first cylinder, a fixed rod, rod one, rod two, rod three, and a driving rod. The driving rod is fixed on the telescopic end of the first cylinder. It further includes a support frame, rollers, a first spring, a chute, a sliding rod, and a second spring. One end of the second spring is connected to the sliding rod, and the other end is connected to the chute. When the two slump cone units are not assembled into a slump cone, the second spring is in a natural state. When the two slump cone units are assembled into a slump cone, the second spring is in a compressed state. This device can mechanize the slump value test and avoid manually separating the slump cone from the concrete.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete slump tests, and particularly relates to a device for testing the rheological properties of concrete. Background Art

[0002] The rheological properties of concrete refer to the fluidity of concrete without vibration, and slump is one of its important evaluation indicators.

[0003] The existing concrete slump test is carried out by filling a conical slump cone with concrete, then separating the slump cone from the concrete without touching the concrete, and finally, after the concrete pile has been stationary for a certain period of time, measuring the height of its highest point, denoted as H1, and taking the difference from the height H2 between the top of the slump cone. The absolute value of the difference is the slump value.

[0004] Then, generally, the slump cone is manually lifted vertically to separate from the concrete, and its stability during rising is low, and it is easy to touch the concrete, affecting the fluidity of the concrete pile. Therefore, it is necessary to use mechanical means to separate the slump cone from the concrete pile. Summary of the Invention

[0005] The device for testing the rheological properties of concrete of the present invention is used to solve the problems mentioned in the background art.

[0006] The device for testing the rheological properties of concrete of the present invention includes a frame rod that can be placed on the ground. A bottom plate is fixedly connected to the frame rod, or a lifting assembly is provided on the frame rod, and a bottom plate is arranged on the lifting assembly, and the bottom plate can be horizontally arranged; it also includes two separation cylinder assemblies that are symmetrically arranged along a plane P, and the plane P is arranged vertically; the separation cylinder assembly includes:

[0007] A slump cone unit, and the slump cone units of the two separation cylinder assemblies can be assembled into a complete slump cone. The slump cone is a conical cylinder, and the inside of the slump cone can be filled with concrete; the lower surface of the slump cone is in contact with the upper surface of the bottom plate;

[0008] A first cylinder, whose non-extensible end is fixed on the frame rod, and the axis of the extensible end of the first cylinder is perpendicular to the plane P;

[0009] A fixed rod, which is fixed on the non-extensible end of the first cylinder;

[0010] Rod 1, Rod 2, and Rod 3 are fixedly connected in sequence, and Rod 1 is fixedly connected to the fixed rod; Rod 2 is horizontally arranged, and the length direction of Rod 2 is parallel to the axis direction of the telescopic end of the first cylinder; Let the direction where the telescopic end of the first cylinder is located be the Y direction. When observing from the top view, let the direction perpendicular to the Y direction be the X direction; When observing from the X direction, the upper end of Rod 3 is connected to the end of Rod 2 away from Rod 1. Let the end of Rod 2 connected to Rod 1 be point A, the other end be point O, and the end of Rod 3 away from Rod 2 be point B, then ∠AOB is an obtuse angle.

[0011] The driving rod is fixed on the telescopic end of the first cylinder, and the axis of the driving rod is arranged vertically.

[0012] The support frame is sleeved on the driving rod and can move vertically relative to the driving rod.

[0013] The roller is arranged on the support frame, and the roller abuts against the inner wall of Rod 2 or Rod 3.

[0014] The first spring is fixedly connected to the support frame at the lower end and to the driving rod at the upper end, and the first spring is always in an extended state.

[0015] The chute is opened on the support frame, and the length direction of the chute is along the Y direction.

[0016] The sliding rod is movably clamped in the chute and can move along the Y direction relative to the chute.

[0017] The second spring is in the chute, one end is connected to the sliding rod, and the other end is connected to the chute. When the two slump cone units are not assembled into a slump cone, the second spring is in a natural state. When the two slump cone units are assembled into a slump cone, the second spring is in a compressed state.

[0018] Using the first cylinder as the power to separate the two slump cone units. Before the two slump cone units are horizontally separated, the pulling force generated by the first spring is also utilized to make the roller move along the inner wall of Rod 3, so that the two slump cone units move upward, enabling the concrete to be separated from the slump cone. Then, let the roller move along the inner wall of Rod 2 to horizontally separate the two slump cone units. The separation process has a high degree of mechanization, avoiding the interference to the concrete caused by human hands. Through the design of the second spring, the two slump cone units first perform a separate and complete upward movement. The two slump cone units first move upward and separate from the concrete. Compared with the case of horizontal separation first, in the case of horizontal separation first, the two slump cone units will rub against the bottom plate, thereby interfering with the concrete on the bottom plate. Moreover, when the two slump cone units are vertically separated from the concrete first, compared with other angles of separation, the vertical separation has a better separation effect with the concrete.

[0019] Further, the lifting assembly includes:

[0020] A lifting cylinder, the axis of its telescopic end is arranged vertically, and the non-telescopic end of the lifting cylinder is fixed on the frame rod;

[0021] A lifting block, fixed on the telescopic end of the lifting cylinder, and a cavity is provided in the lifting block;

[0022] A rotating motor, its non-rotating shaft end is fixed in the cavity, the rotating shaft of the rotating motor extends out of the cavity, and the rotating shaft of the rotating motor is along the Y direction; the rotating shaft of the rotating motor is fixedly connected to the bottom plate, or a quick-release structure is provided on the rotating shaft of the rotating motor, and the quick-release structure is connected to the bottom plate.

[0023] It can make the bottom plate descend, so as to leave a certain space between the bottom plate and the two slump cone units. The reserved space is convenient for the test personnel to clean the surface of the bottom plate and remove the residues on the bottom plate, so that it will not be affected by the residues during the next test.

[0024] Further, the quick-release structure includes:

[0025] A quick-release plate, fixed on the rotating shaft of the rotating motor;

[0026] A plug rod, passing through the quick-release plate. A through hole for the plug rod to pass through is provided on the quick-release plate. The length direction of the through hole is along the Y direction, and the plug rod can move relative to the quick-release plate along the axis of the through hole;

[0027] An installation frame, fixed on the quick-release plate;

[0028] A quick-release spring, one end is fixedly connected to the installation frame, and the other end is fixedly connected to the plug rod. The quick-release spring is always in a compressed state; a jack is provided on the side surface of the bottom plate along the Y direction. Under the action of the quick-release spring, the plug rod can be inserted into the corresponding jack. The end face shape of the plug rod is rectangular, and the jack is adapted to the plug rod.

[0029] The bottom plate can be used once and replaced once. Instead of temporarily cleaning the bottom plate, a clean another bottom plate can be directly replaced. The replaced bottom plate with concrete residues can be cleaned later. The design of using one bottom plate and replacing one bottom plate saves more test time.

[0030] Further, when the roller abuts against the inner wall of the upper end of the rod three, the second spring is exactly in the natural state; when the roller abuts against the inner wall of other positions of the rod three except the upper end, the second spring is in a compressed state.

[0031] This is to enable the second spring, the sliding rod and the slump cone unit to move as a whole directly when the two slump cone units are horizontally separated, without being affected by the compression stroke of the second spring. If the second spring is still in a compressed state when the roller abuts against the upper end of the rod three, then the rod two will be made longer to meet the purpose of the horizontal opening of the two slump cone units. The too long rod two will affect its strength, and at the same time will also increase the occupied space of the equipment, which is not conducive to manufacturing and use.

[0032] Further, the roller can rotate, and the rotating shaft of the roller is along the X direction.

[0033] The roller can rotate, which can minimize the friction between it and the second rod and the third rod.

[0034] Further, the rotating motor is a servo motor.

[0035] It can accurately control the rotation angle and can be self-locked after power-off. When the rotating motor flips, the bottom plate can be made not to remain horizontal. The non-horizontal bottom plate is easy to be cleaned by the tester. For example, when the upper surface of the bottom plate is turned towards the direction of the tester's face, it is convenient for the tester to clean the concrete residue on the bottom plate. The servo motor can perfectly reset after the bottom plate rotates a certain angle, ensuring that the bottom plate is still in a horizontal state during the next test.

[0036] Beneficial effects

[0037] By setting the second rod, the third rod and the first spring, when the concrete is separated from the two slump cone units mechanically, the two slump cone units can move vertically first and then horizontally, avoiding the interference to the concrete caused by the frictional vibration between the lower end of the slump cone unit and the surface of the bottom plate in the case of horizontal movement first.

[0038] The lifting assembly and the rotating motor are set, which can make the bottom plate have a certain displacement and rotation, so that the bottom plate can be displaced or rotated to a state convenient for the tester to clean the concrete residue, facilitating the cleaning of the residue on the bottom plate and reducing the interference of the concrete residue to each test during multiple tests.

[0039] The bottom plate can be quickly replaced through a quick-release structure. During multiple tests, one bottom plate can be used and then replaced, and the replaced bottom plate can be cleaned. While facilitating cleaning, it can also save test time, enabling the test and the cleaning of the bottom plate to be carried out synchronously by two people.

[0040] Only relying on the first air cylinder, the second rod and the third rod can complete the vertical movement first and then the horizontal movement of the two slump cone units, without the need for two air cylinders to separately make the slump cone units move vertically first and then horizontally, simplifying the whole device.

[0041] After the two slump cone units are combined, the two slump cone units continuously compress the second spring. The advantage of this design is that it can overly control the elongation stroke of the first cylinder, and let the deformation of the second spring adapt to the excessive elongation of the first cylinder. The excessive elongation can ensure that the two slump cone units are closely attached and sealed. If there is no second spring, the way to make the two slump cone units fit can only rely on accurately setting the elongation amounts of the two first cylinders to ensure that the two slump cone units just come into contact and are sealed. For the control of the first cylinder, because it is very difficult to accurately control the elongation amount of the first cylinder, the sealing performance of the two slump cone units cannot be guaranteed, and there are often gaps at the millimeter level, resulting in poor sealing. Therefore, the design of the second spring very cleverly avoids the problem of poor sealing. Description of the Drawings

[0042] Figure 1 is the overall structural schematic diagram of Embodiment 1;

[0043] Figure 2 is the structural schematic diagram of the separation cylinder assembly of Embodiment 1;

[0044] Figure 3 is the overall structural schematic diagram of Embodiment 2;

[0045] Figure 4 is the structural schematic diagram of the quick-release structure of Embodiment 2.

[0046] 1. Frame rod; 2. Base plate; 3. Slump cone unit; 4. First cylinder; 5. Fixed rod; 6. Rod one; 7. Rod two; 8. Rod three; 9. Driving rod; 10. Support frame; 11. Roller; 12. First spring; 13. Chute; 14. Slide bar; 15. Second spring; 16. Lifting cylinder; 17. Lifting block; 18. Rotating motor; 19. Quick-release plate; 20. Insertion rod; 21. Through hole; 22. Mounting frame; 23. Quick-release spring; 24. Insertion hole. Detailed Embodiments

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] Embodiment 1: See Figure 1, a concrete rheological property testing device, including four frame rods 1. The axes of the four frame rods 1 are all vertically arranged, and the four frame rods 1 enable the entire testing device to be placed on the ground. Looking at it from a top view, the four frame rods 1 enclose a rectangular area, and the rectangular area enclosed by the four frame rods 1 is denoted as area A. A bottom plate 2 is provided in area A, and the edge of the bottom plate 2 is welded and fixed to all four frame rods 1. The bottom plate 2 is horizontally arranged.

[0049] Looking at it from a top view, let the direction where one side of the bottom plate 2 is located be the X direction, let the midline of the bottom plate 2 in the X direction be line L, and the plane passing through line L and along the vertical direction be plane P; let the direction where an adjacent side of the bottom plate 2 is located be the Y direction, the midline of the bottom plate 2 in the Y direction be line M, and the plane passing through line M and vertically be plane N.

[0050] Two sets of separating cylinder assemblies are provided on the four frame rods 1, and the two sets of separating cylinder assemblies are symmetrically arranged along plane P. The separating cylinder assembly includes:

[0051] A slump cone unit 3. The slump cone units 3 of the two separating cylinder assemblies can be jointly assembled into a complete slump cone. The shape of the complete slump cone is a conical cylinder. Denote the bottom surface with the larger area as the lower bottom surface of the conical cylinder. When the two slump cone units 3 are assembled into a slump cone, the lower bottom surface of the slump cone abuts against the upper surface of the bottom plate 2. Concrete can be poured into its interior from the upper end opening of the slump cone. The concrete contacts the upper surface of the bottom plate 2. At this time, concrete can be loaded into the slump cone for the slump value test experiment. After loading, after separating the concrete from the slump cone, by detecting the height of the highest point where the concrete pile is located after standing for a certain time, denoted as H1, and taking the difference from the height H2 between the slump cone top, the absolute value of the difference is the slump value.

[0052] See Figure 1 and Figure 2 , two driving assemblies, symmetrically arranged along plane N. The driving assembly includes: a first cylinder 4, whose axis is along the Y direction. The non-extensible end of the first cylinder 4 is fixedly installed on the frame rod 1 through a connecting plate. The non-extensible end of the first cylinder 4 is welded to the connecting plate, and the connecting plate is also welded to the frame rod 1. A fixed rod 5, welded and fixed to the non-rotating shaft end of the first cylinder 4. Looking at it from the X direction, the shape of the fixed rod 5 is an inverted "L" shape. A limiting frame, the limiting frame is composed of three rods connected in sequence. Denote the three rods as rod one 6, rod two 7, and rod three 8 respectively; Figure 2From the perspective of the angle of view, the lower end of the rod 1 6 is welded to the right end of the fixed rod 5, the left end of the rod 2 7 is welded to the upper end of the rod 1 6, the right end of the rod 2 is welded to the upper end of the rod 3 8, and the lower end of the rod 3 8 is not connected to other parts. In this example, from the X direction, the shape of the rod 1 6, the rod 2 7 and the rod 3 8 as a whole is an isosceles trapezoidal frame, and the outer shell of the isosceles trapezoid does not have a longer lower bottom rod. The rod 1 6 and the rod 3 8 respectively form the two waists of the isosceles trapezoid, and the rod 2 7 forms the upper bottom of the isosceles trapezoid with a shorter length. The length direction of the rod 2 7 is parallel to the Y direction. In other embodiments, the rod 1, the rod 2 and the rod 3 can be non-isosceles trapezoidal structures, as long as the following conditions are met: the upper end of the rod 3 is welded to the right end of the rod 2, from the X direction, the left end of the rod 2 is set as point A, the right end of the rod 2 is set as point O, the lower end of the rod 3 is set as point B, and ∠AOB is an obtuse angle.

[0053] The driving rod 9 is simultaneously welded to the telescopic ends of the two first cylinders 4 through the base. The axis of the driving rod 9 is arranged vertically.

[0054] The support frame 10, in this embodiment, is an axisymmetric figure in a top view, and is symmetrically arranged along the plane N. In a top view, the shape of the support frame 10 is a shape of a 匚. The support frame 10 is sleeved on the driving rod 9, and the support frame 10 is movably clamped on the driving rod 9, and the support frame 10 can move vertically relative to the driving rod 9.

[0055] Two groups of linkage components are symmetrically arranged along the surface N. The linkage component assembly includes: a roller 11, which is connected to the support frame 10 by means of an axis rotation, and the axis of the roller 11 is along the X direction. The roller 11 can abut against the inner wall of one of the rods 2 7 and the rod 3 8. The first spring 12 has a telescopic direction along the vertical direction; the lower end of the first spring 12 is welded to the upper surface of the support frame 10, and the upper end is welded to the driving rod 9. The first spring 12 is always in an extended state, and the first spring 12 will generate an upward pulling force on the support frame 10; under the pulling force of the first spring 12, the roller 11 always maintains abutment against the inner wall of one of the rods 2 7 and the rod 3 8. The slide groove 13 is opened on the support frame 10, and the length direction of the slide groove 13 is along the Y direction. The slide rod 14 is movably clamped in the slide groove 13, and the slide rod 14 can move along the Y direction. The slide rod 14 is welded and fixed to the slump cone unit 3. The second spring 15 is in the chute 13, and the expansion and contraction direction of the second spring 15 is along the Y direction. One end of the second spring 15 is welded and fixed to the chute 13, and the other end is welded and fixed to the slide rod 14. Before the two slump cone units 3 form a complete slump cone, the second spring 15 is in a natural state; after the two slump cone units 3 form a slump cone, the second spring 15 is compressed along the Y direction in the chute 13.

[0056] In this embodiment, the use process of the testing device is as follows:

[0057] Assume that when two slump cone units 3 are assembled into a complete slump cone, at this time, the roller 11 abuts against the inner wall of the lower end of the third rod 8, that is Figure 2 State. Let this be the initial state. Separating the two slump cone units 3 is divided into two steps:

[0058] The first step of action: Separate the slump cone vertically from the concrete.

[0059] The specific actions are as follows:

[0060] Starting from the initial state, looking at the left separation cylinder assembly, the two first cylinders 4 are shortened simultaneously, driving the rod 9, the support frame 10, and the roller 11 to move leftward along the Y direction as a whole. At the same time, since the first spring 12 exerts an upward pulling force on the support frame 10, the support frame 10 and the roller 11 will move upward as a whole; that is, the support frame 10 and the roller 11 move both leftward and upward as a whole, that is, along the length trajectory of the third rod 8, moving upward from bottom to top.

[0061] When the rod 9, the support frame 10, and the roller 11 move leftward along the Y direction as a whole, the second spring 15 gradually elongates from the compressed state. During this process, the two slump cone units 3 are still under the elastic force of the second spring and do not separate, and the sliding rod 14 moves along the Y direction in the sliding groove 13. However, since the support frame 10 and the roller 11 also move upward as a whole, the support frame 10, the roller 11, the second spring 15, the sliding rod 14, and the slump cone units 3 move upward as a whole. Looking from the perspective of the slump cone, the slump cone only moves upward relative to the concrete, that is, the slump cone is vertically separated from the concrete. The two first cylinders 4 in the right separation cylinder assembly also shorten, and the actions of other components are similar to the above and will not be elaborated.

[0062] When the roller 11 moves to reach the inner wall of the upper end of the third rod 8, the second spring 15 just returns to the natural state. At this time, the slump cone moves vertically to the highest point. At this time, the two slump cone units 3 still do not separate horizontally from each other.

[0063] The second step of action: Horizontally separate the two slump cone units 3.

[0064] The specific actions are as follows:

[0065] Viewed from the left separation cylinder assembly, the two first cylinders 4 continue to shorten simultaneously. The driving rod 9, the support frame 10, and the roller 11 move leftward as a whole in the Y direction. The roller 11 contacts the inner wall of the second rod 7. However, since the second rod 7 is horizontally arranged, the pulling force of the first spring 12 on the support frame 10 cannot cause the support frame 10 and the roller 11 to move upward as a whole. Moreover, since the second spring 15 has returned to its natural state, when the support frame 10 and the roller 11 move leftward as a whole, it will cause the support frame 10, the roller 11, the second spring 15, the sliding rod 14, and the slump cone unit 3 to move leftward as a whole. In the other separation cylinder assembly, the two first cylinders 4 also shorten, and the actions of other components are similar to the above and will not be elaborated. Finally, the two slump cone units 3 are horizontally separated in opposite directions.

[0066] Embodiment 2: See Figure 3 , the concrete rheological property testing device, which is different from that of Embodiment 1 in that in this embodiment, the bottom plate 2 is not welded and fixed to the frame rod 1. In this embodiment, the bottom plate 2 can move vertically. Two sets of lifting components for vertically moving the bottom plate 2 are provided on the frame rod 1. The two sets of lifting components are symmetrically arranged along the plane P.

[0067] The lifting component includes:

[0068] Lifting cylinders 16. In this embodiment, there are two lifting cylinders in one set of lifting components, and the axes are arranged vertically. The non-extending end of the lifting cylinder 16 is welded to the frame rod 1 through a support. The non-extending end of the lifting cylinder 16 is welded to the support, and the support is also welded to the frame rod 1. The extending end of the lifting cylinder 16 faces downward.

[0069] Lifting blocks 17, which are simultaneously welded to the non-extending ends of the two lifting cylinders 16 in the same set of lifting components, can simultaneously extend and retract with the extending ends of the two lifting cylinders 16 in this set of lifting, realizing the lifting of the lifting blocks 17. A cavity is formed inside the lifting blocks 17.

[0070] Rotating motors 18, which are located in the cavity. The non-rotating shaft end of the rotating motor 18 is installed in the cavity by means of bolts. The cavity is designed to be non-closed, facilitating the installation of the rotating motor 18 into the cavity. The rotating shaft of the rotating motor 18 passes through the lifting block 17, and a hole for the rotating shaft of the rotating motor 18 to pass through is provided on the lifting block 17. The rotating shaft of the rotating motor 18 is along the X direction. The rotating motor 18 uses a servo motor, which can accurately control the rotation angle of its rotating shaft and can be locked after stopping. The rotating shafts of the two rotating motors 18 are respectively welded and fixed to the two side surfaces of the bottom plate 2 along the Y direction. The rotating directions of the two rotating motors 18 in the two sets of lifting components are opposite, and the rotation angles and angular velocities are kept consistent.

[0071] When conducting the slump value test, the bottom plate is kept horizontal, and the lifting cylinder 16 keeps the lower surface of the slump cone in contact with the upper surface of the bottom plate. After completing the slump value test, while the lifting cylinder 16 descends, the bottom plate can be flipped by a certain angle by using two rotating motors 18, which is convenient for the test personnel to wipe the residual concrete on the upper surface of the bottom plate and avoid the influence of the concrete from the previous test on the results of the subsequent test. The lifting cylinder 16 and the rotating motors 18 mainly serve the purpose of facilitating the cleaning of the bottom plate. The rotating motors used are servo motors, which can accurately control their rotation angles and keep the bottom plate in a horizontal state when it is reset after being flipped by a certain angle.

[0072] Embodiment 3: See Figure 4 , the concrete rheological property testing device, which is different from the frame rods of the frame in Embodiment 2. In this embodiment, the bottom plate is not directly fixed to the rotating shaft of the rotating motor by welding, but is indirectly installed on the rotating shaft of the rotating motor through a quick-release structure. Since there are two rotating motors and they are symmetrically arranged along plane P, there are also two quick-release components and they are symmetrically arranged along plane P. The quick-release structure includes:

[0073] Quick-release plate 19, welded and fixed to the rotating shaft of the rotating motor.

[0074] Insert rod 20, passing through the quick-release plate 19. A through hole 21 for the insert rod 20 to pass through is provided on the quick-release plate 19. The length direction of the through hole 21 is along the Y direction, and the insert rod 20 can move relative to the quick-release plate 19 along the axis of the through hole 21. In this embodiment, when viewed along the X direction, the insert rod 20 is in a T shape and consists of a rod part and a cap part. The rod part passes through the aforementioned through hole 21, and the cap part abuts against the left surface of the quick-release plate 19.

[0075] Mounting bracket 22, welded and fixed to the left surface of the quick-release plate 19. When viewed from the top view, the mounting bracket 22 is in a "C" shape.

[0076] Quick-release spring 23, with one end welded and fixed to the mounting bracket 22 and the other end welded and fixed to the cap part of the insert rod 20. The quick-release spring 23 is always in a compressed state. Only under the elastic force of the quick-release spring 23, the cap part of the insert rod 20 abuts against the left surface of the quick-release plate 19, and the right end of the insert rod 20 extends out of the through hole 21;

[0077] A jack 24 is provided on the side surface of the bottom plate along the Y direction. Under the action of the quick-release spring 23, the right end of the insert rod 20 can be inserted into the corresponding jack 24. In this embodiment, the end face shape of the insert rod 20 is rectangular, and the shape of the jack 24 is adapted thereto, ensuring that after the insert rod 20 is inserted into the jack 24, the bottom plate will not rotate around the midline of the insert rod 20 along the Y direction.

[0078] Based on the above inspiration from the ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Concrete rheological properties testing device, characterized in that: The invention comprises a frame rod (1), the frame rod (1) can be placed on the ground, a bottom plate (2) is fixedly connected to the frame rod (1), or a lifting assembly is provided on the frame rod (1), a bottom plate (2) is provided on the lifting assembly, and the bottom plate (2) can be arranged horizontally; and also comprises two separation cylinder assemblies, the two separation cylinder assemblies are symmetrically arranged along a plane P, and the plane P is arranged vertically; the separation cylinder assembly comprises: A slump cone unit (3), wherein the slump cone units (3) of the two separate cone assemblies can be assembled into a complete slump cone, the slump cone is a conical cone, and the interior of the slump cone can be filled with concrete; the lower surface of the slump cone is in contact with the upper surface of the bottom plate (2); A first cylinder (4), the non-telescopic end of which is fixed on the frame rod (1), and the axis of the telescopic end of the first cylinder (4) is perpendicular to the plane P; A fixed rod (5) fixed to the non-telescopic end of the first cylinder (4); The rod 1 (6), the rod 2 (7), and the rod 3 (8) are fixedly connected in sequence, and the rod 1 (6) is fixedly connected to the fixed rod (5); the rod 2 (7) is arranged horizontally, and the length direction of the rod 2 (7) is parallel to the axis direction of the telescopic end of the first cylinder (4); the direction of the telescopic end of the first cylinder (4) is assumed to be the Y direction, and when viewed from a top view, the direction perpendicular to the Y direction is assumed to be the X direction; when viewed from the X direction, the upper end of the rod 3 (8) is connected to the end of the rod 2 (7) away from the rod 1 (6), and the end of the rod 2 (7) connected to the rod 1 (6) is assumed to be point A, and the other end is assumed to be point O, and the end of the rod 3 (8) away from the rod 2 (7) is assumed to be point B, then ∠AOB is an obtuse angle; A driving rod (9) is fixed on the telescopic end of the first cylinder (4), and the axis of the driving rod (9) is arranged vertically; A support frame (10) is sleeved on the driving rod (9) and can move vertically relative to the driving rod (9); A roller (11) is arranged on the support frame (10), and the roller (11) abuts against the inner wall of the second rod (7) or the third rod (8); A first spring (12), the lower end of which is fixedly connected to the support frame (10), and the upper end of which is fixedly connected to the driving rod (9), and the first spring (12) is always in an extended state; A slide groove (13) is provided on the support frame (10), and the length direction of the slide groove (13) is along the Y direction; A slide bar (14) is movably mounted in the slide groove (13) and is movable relative to the slide groove (13) along the Y direction; The second spring (15) is in the slide groove (13), one end of which is connected to the slide rod (14) and the other end of which is connected to the slide groove (13). When the two slump cone units (3) are not assembled into a slump cone, the second spring (15) is in a natural state. When the two slump cone units (3) are assembled into a slump cone, the second spring (15) is in a compressed state.

2. The concrete rheological properties testing device according to claim 1, characterized in that: The lifting assembly comprises: A lifting cylinder (16), the telescopic end axis of which is arranged vertically, and a non-telescopic end of the lifting cylinder (16) is fixed on the frame rod (1); A lifting block (17) is fixed on the telescopic end of the lifting cylinder (16), and a cavity is provided in the lifting block (17); The non-rotating shaft end of the rotating motor (18) is fixed in the cavity, the rotating shaft of the rotating motor (18) extends out of the cavity, and the rotating shaft of the rotating motor (18) is along the Y direction; the rotating shaft of the rotating motor (18) is fixedly connected to the bottom plate (2), or a quick-release structure is provided on the rotating shaft of the rotating motor (18), and the quick-release structure is connected to the bottom plate (2).

3. The concrete rheological properties testing device according to claim 2, characterized in that: The quick-release structure comprises: A quick release plate (19) is fixed on the rotating shaft of the rotating motor (18); The insertion rod (20) is inserted into the quick release plate (19). The quick release plate (19) is provided with a through hole (21) for the insertion rod (20) to pass through. The length direction of the through hole (21) is along the Y direction. The insertion rod (20) can move along the axis of the through hole (21) relative to the quick release plate (19); A mounting frame (22) fixed on the quick release plate (19); The quick release spring (23) has one end fixedly connected to the mounting frame (22) and the other end fixedly connected to the insertion rod (20), and the quick release spring (23) is always in a compressed state; a plug hole (24) is provided on the side surface of the bottom plate (2) along the Y direction, and under the action of the quick release spring (23), the insertion rod (20) can be inserted into the corresponding plug hole (24); the end face of the insertion rod (20) is rectangular in shape, and the plug hole (24) is adapted to the insertion rod (20).

4. The concrete rheological properties testing device according to claim 1, characterized in that: When the roller (11) abuts against the inner wall of the upper end of the rod three (8), the second spring (15) is in a natural state; when the roller (11) abuts against the inner wall of other positions of the rod three (8) other than the upper end, the second spring (15) is in a compressed state.

5. The concrete rheological properties testing device according to claim 1, characterized in that: The roller (11) is rotatable, and the rotation axis of the roller (11) is along the X direction.

6. The concrete rheological properties testing device according to claim 2, characterized in that: The rotating motor (18) is a servo motor.

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