Polymer concrete fluidity testing device

Abstract

The utility model relates to the technical field of building material testing instruments, in particular to a polymer concrete fluidity testing device which comprises a base, concentric circle scales are arranged in the middle of the base, a fixed column is fixedly installed on the top of the base and is of a hollow structure, a movable column is arranged in the fixed column, and lifting devices are arranged in the fixed column and the movable column. The concrete slump device has the advantages that the slump barrel can be conveniently disassembled and cleaned, and the situation that the subsequent use is affected due to the fact that polymer concrete is left is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building material testing instruments, in particular to a polymer concrete fluidity testing device. Background Art

[0002] Polymer concrete is a special type of concrete that uses polymers as bonding materials. Compared with traditional concrete, polymer concrete has higher strength, better durability and better chemical stability. It is widely used in various engineering fields, such as construction, roads, bridges, etc. In order to ensure that polymer concrete can evenly fill the mold during construction, people usually use polymer concrete fluidity testing devices for fluidity tests. Polymer concrete fluidity testing devices are a type of equipment used to measure the fluidity of concrete. The fluidity of concrete refers to the plasticity and flowability of concrete during construction. The fluidity testing device evaluates the fluidity of concrete by measuring the fluidity parameters of concrete, such as fluidity index and expansion. These parameters are very important for ensuring that concrete can evenly fill the mold during construction, reducing bubbles and voids, and improving the uniformity and density of concrete.

[0003] The utility model patent with the publication number CN212228655U discloses an improved concrete fluidity testing device, including a chassis and a bracket arranged on the chassis, a sliding rod slidably arranged on the bracket, a slump cylinder and a lifting rod fixedly connected to the sliding rod, a threaded hole arranged on the lifting rod, a motor, a controller, and a battery arranged on the top of the bracket, the controller is used to drive the motor to work, a screw rod is arranged at the output end of the motor, the screw rod passes through the threaded hole arranged on the lifting rod from top to bottom, an infrared height gauge is arranged at the bottom of the screw rod, a level and a leveling bolt are arranged on the chassis, and a cleaning plate is detachably connected to the chassis below the slump cylinder. The whole device has a simple operation process, improves the accuracy of slump measurement, reduces unnecessary measurement errors, and is easy to centrally process concrete mixture samples.

[0004] However, the slump bucket of the above patent is not convenient to clean. It is not convenient to see whether the inner wall of the slump bucket is cleaned during cleaning. When the slump bucket is in use, the inner wall will be stained with some polymer concrete. If it is not cleaned, it will easily affect the next inspection. Utility Model Content

[0005] The utility model aims to provide a polymer concrete fluidity testing device to solve the above-mentioned deficiencies in the prior art, which is convenient for cleaning the residual polymer concrete.

[0006] The technical scheme adopted by the utility model is a polymer concrete fluidity testing device, comprising a base, a concentric circle scale is opened in the middle of the base, a fixed column is fixedly installed on the top of the base, the fixed column is a hollow structure, a movable column is arranged inside the fixed column, a lifting device is arranged inside the fixed column and the movable column, the movable column is slidably connected with the fixed column through the lifting device, and a slumping device is arranged on the top of the movable column.

[0007] Preferably, the lifting device includes a threaded hole, which is opened in the movable column. A threaded column is threadedly connected to the threaded hole. A worm wheel integrally formed with the threaded column is provided at the bottom of the threaded column. A worm is rotatably connected to one side of the worm wheel. One end of the worm is fixedly connected to a motor through a wall of the fixed column. The stator part of the motor is fixedly installed on the top of the base.

[0008] Preferably, the slumping device includes a cross bar, a pair of which are symmetrically fixedly installed on the top of the movable column, an end of the cross bar away from the movable column is provided with a clamp integrally formed with the cross bar, a connecting block is installed in contact with the clamp, threaded holes are provided on the surfaces of the clamp and bolts are threadedly installed in the threaded holes, a slumping barrel is fixedly connected to the end of the connecting block away from the clamp, and a feed port is provided on the top of the slumping barrel.

[0009] Preferably, height lines are engraved on the surface of the movable column.

[0010] Preferably, mounting holes are provided at the four corners of the base.

[0011] Preferably, a magnetic coupler is fixedly installed at the connection between the motor and the worm.

[0012] The utility model is simple and convenient to use, and only needs to start the motor, and the rotation of the motor drives the worm to rotate, and the rotation of the worm drives the worm wheel to rotate, and then drives the threaded column to rotate in the threaded hole to move the movable column, and the movement of the movable column is controlled to make the bottom of the slump bucket contact with the surface of the base, and then the polymer concrete to be tested is poured into the slump bucket through the feed port, and then the movable column is controlled to rise to make the slump bucket leave the surface of the base, and the fluidity of the polymer concrete is judged by observing the concentric circle scale after the slump bucket is moved to a suitable height by observing the height line, and when the slump bucket needs to be disassembled, it only needs to unscrew the bolts, so that it is convenient to clean it.

[0013] Compared with the prior art, the utility model has the beneficial effect of facilitating the disassembly of the slumping barrel for cleaning, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a polymer concrete fluidity testing device proposed in the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a polymer concrete fluidity testing device proposed by the utility model;

[0016] Figure 3 It is an enlarged view of point A of the present utility model.

[0017] Description of the symbols in the figure

[0018] 1. Base; 12. Concentric circle scale; 2. Fixed column; 3. Movable column; 4. Lifting device; 41. Threaded hole; 42. Threaded column; 43. Worm gear; 44. Worm; 45. Motor; 5. Cross bar; 51. Clamp; 52. Connecting block; 53. Bolt; 54. Slump barrel; 55. Feed port; 6. Height line; 7. Mounting hole; 8. Magnetic coupler. DETAILED DESCRIPTION

[0019] Figure 1 The utility model schematically shows a polymer concrete fluidity testing device, comprising a base 1, a concentric circle scale 12 is provided in the middle of the base 1, the concentric circle scale 12 is located directly below the slumping bucket 54, a fixed column 2 is fixedly installed on the top of the base 1, the fixed column 2 is a hollow structure, a movable column 3 is provided in the fixed column 2, a lifting device 4 is provided in the fixed column 2 and the movable column 3, the movable column 3 is slidably connected to the fixed column 2 through the lifting device 4, a slumping device is provided on the top of the movable column 3, and the slumping device comprises a cross bar 5, the cross bar 5 is provided with a pair of cross bars 5, the pair of cross bars 5 are symmetrically fixedly installed on the top of the movable column 3, and the end of the cross bar 5 away from the movable column 3 is provided with a A clamp 51 is provided, and a connecting block 52 is installed in contact with the clamp 51. Threaded holes are provided on the surfaces of the clamp 51 and the connecting block 52, and bolts 53 are threadedly installed in the threaded holes. A slumping barrel 54 is fixedly connected to the end of the connecting block 52 away from the clamp 51, and a feed port 55 is provided on the top of the slumping barrel 54. A height line 6 is engraved on the surface of the movable column 3, and mounting holes 7 are provided at the four corners of the base 1. The equipment can be fixedly installed by setting screws or other fixing tools in the mounting holes 7. A magnetic coupler 8 is fixedly installed at the connection between the motor 45 and the worm 44. The magnetic coupler 8 can adopt a model such as HSFO8, which can be disconnected when the load is too large, thereby protecting the motor 45.

[0020] like Figure 2 and Figure 3The lifting device 4 shown includes a threaded hole 41, which is opened in the movable column 3. The threaded hole 41 is threadedly connected to a threaded column 42. The bottom of the threaded column 42 is provided with a worm wheel 43 integrally formed with the threaded column 42. One side of the worm wheel 43 is rotatably connected to a worm 44. One end of the worm 44 passes through a wall of the fixed column 2 and is fixedly connected to a motor 45. The stator part of the motor 45 is fixedly installed on the top of the base 1. In actual use, it is only necessary to start the motor 45 first. The rotation of the motor 45 drives the worm 44 to rotate, and then drives the worm wheel 43 to rotate. The rotation of the worm wheel 43 will drive The movable threaded column 42 rotates in the threaded hole 41, thereby moving the movable column 3. By controlling the height of the movable column 3, the bottom of the slump bucket 54 is made in close contact with the base 1, and then the polymer concrete to be tested is poured into the slump bucket 54 through the feed port 55. Then the motor 45 is started to control the movable column 3 to rise, and the height of the slump bucket 54 is controlled by observing the height line 6. After the slump bucket 54 is moved to a suitable height, the concentric circle scale 12 on the base 1 is observed to obtain the test result. When the slump bucket 54 needs to be disassembled and cleaned, it is only necessary to unscrew the bolt 53.

Claims

1. A polymer concrete fluidity testing device, comprising a base (1), wherein a concentric circle scale (12) is provided in the middle of the base (1), and wherein: A fixed column (2) is fixedly installed on the top of the base (1); the fixed column (2) is a hollow structure; a movable column (3) is arranged inside the fixed column (2); a lifting device (4) is arranged inside the fixed column (2) and the movable column (3); the movable column (3) is slidably connected to the fixed column (2) via the lifting device (4); and a slumping device is arranged on the top of the movable column (3).

2. A polymer concrete fluidity testing device according to claim 1, characterized in that: The lifting device (4) comprises a threaded hole (41), the threaded hole (41) being formed in the movable column (3), the threaded hole (41) being connected to a threaded column (42) through a thread, a worm wheel (43) being formed integrally with the threaded column (42) being provided at the bottom of the threaded column (42), a worm (44) being rotatably connected to one side of the worm wheel (43), one end of the worm (44) passing through a wall of the fixed column (2) and being fixedly connected to a motor (45), and a stator portion of the motor (45) being fixedly mounted on the top of the base (1).

3. A polymer concrete fluidity testing device according to claim 1 or 2, characterized in that: The slumping device comprises a cross bar (5), a pair of cross bars (5) are provided, and the pair of cross bars (5) are symmetrically fixedly installed on the top of the movable column (3); a clamp (51) formed integrally with the cross bar (5) is provided at one end of the cross bar (5) away from the movable column (3); a connecting block (52) is contactingly installed in the clamp (51); threaded holes are provided on the surfaces of the clamp (51) and the connecting block (52); bolts (53) are threadedly installed in the threaded holes; a slumping barrel (54) is fixedly connected to one end of the connecting block (52) away from the clamp (51); and a feeding port (55) is provided at the top of the slumping barrel (54).

4. A polymer concrete fluidity testing device according to claim 1 or 2, characterized in that: The surface of the movable column (3) is engraved with a height line (6).

5. A polymer concrete fluidity testing device according to claim 3, characterized in that: The surface of the movable column (3) is engraved with a height line (6).

6. A polymer concrete fluidity testing device according to claim 1, 2 or 5, characterized in that: The base (1) is provided with mounting holes (7) at four corners.

7. A polymer concrete fluidity testing device according to claim 3, characterized in that: The base (1) is provided with mounting holes (7) at four corners.

8. A polymer concrete fluidity testing device according to claim 4, characterized in that: The base (1) is provided with mounting holes (7) at four corners.

9. A polymer concrete fluidity testing device according to claim 2, characterized in that: A magnetic coupler (8) is fixedly mounted at the connection between the motor (45) and the worm (44).

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