Concrete shrinkage performance test box

Abstract

The utility model discloses a concrete shrinkage performance test box which comprises a base station, a temperature controller is fixedly installed at the top end of the inner side of a middle column, an electric heater is fixedly connected to the lower end of the inner side of the middle column, a bottom circular plate is installed at the bottom end of a barrel shell, a measuring cup used for containing fine sand is installed in a fixing shell in a sliding mode, and the measuring cup is fixedly connected with the base station. According to the device, a mold is used for manufacturing a concrete test block, after the concrete test block is initially set, the top cover body is opened, the concrete test block is placed in the barrel shell, then fine sand in the measuring cup filled with the fine sand is gradually poured into the barrel shell, the capacity of the remaining fine sand in the measuring cup is observed and recorded, and the sealing plate is opened to discharge the fine sand from the discharging pipe; the temperature controller and the electric heater are turned on to ensure the forming environment of the concrete test block, the operation is repeated by the measuring cup after the concrete test block is completely formed, and data are recorded and compared with initial data, so that the shrinkage amount of the concrete can be quickly and accurately known, and the shrinkage performance of the concrete can be obtained through comparison of four groups of tests.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing, in particular to a concrete shrinkage performance testing box. Background Art

[0002] Concrete is one of the most commonly used building materials in the construction field, and its performance directly affects the structure and stability of buildings. Concrete has shrinkage problems, especially in dry environments, where concrete will shrink and deform significantly, thus affecting the service life and safety of buildings. In order to study the shrinkage performance of concrete, relevant tests are required.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a concrete shrinkage performance test box to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A concrete shrinkage performance test box comprises a base, a turntable is rotatably mounted on the upper end of the base, a middle column is fixedly connected to the center of the top end of the turntable, a temperature controller is fixedly mounted on the inner top end of the middle column, an electric heater is fixedly connected to the inner lower end of the middle column, a cylinder shell is fixedly mounted on the outer side of the middle column, a bottom circular plate is mounted on the bottom end of the cylinder shell, a snap-fit ​​piece is mounted on the edge of the bottom circular plate and the lower end of the cylinder shell, a fixed shell is fixedly connected to the outer side of the base, and a measuring cup for placing fine sand is slidably mounted in the fixed shell.

[0007] As a further solution of the utility model, the base is arranged in a cone shape, and the edge of the turntable is provided with anti-slip teeth.

[0008] As a further solution of the utility model, a visual window is provided on the inner side of the cylindrical shell, a top cover body is rotatably mounted on the top end of the cylindrical shell, and a pull block is fixedly connected to the top end of the top cover body.

[0009] As a further solution of the utility model, the fastener includes a clamping rod, which is fixedly connected to the cylinder shell, a clamping head is slidably installed on the inner side of the clamping rod, a spring is fixedly connected to the outer side of the clamping head, a positioning rod is rotatably installed on the bottom end of the clamping head, and the positioning rod is fixedly connected to the bottom circular plate.

[0010] As a further solution of the utility model, the spring is slidably connected to the cylindrical shell, and the diameter of the cylindrical shell is equal to the diameter of the bottom circular plate.

[0011] As a further solution of the utility model, a mold for making a concrete test block is placed inside the measuring cup, and the side plate of the mold is rotatably connected to the bottom plate of the mold.

[0012] As a further solution of the utility model, the cylindrical shell is provided with 4 groups, the electric heater is provided with 4 groups, and the electric heater is located between the center column and the cylindrical shell.

[0013] As a further solution of the utility model, a feeding pipe is fixedly connected to the center of the bottom end of the bottom circular plate, and a sealing plate is slidably connected between the feeding pipe and the bottom circular plate.

[0014] The beneficial effects of the utility model are:

[0015] The utility model is provided with a cylinder shell, a middle column, an electric heater, a temperature controller, a measuring cup and the like. The device uses a mold to make a concrete test block. When the concrete test block is initially solidified, the top cover is opened and placed in the cylinder shell, and then the fine sand in the measuring cup filled with fine sand is gradually poured into the cylinder shell, the remaining fine sand capacity in the measuring cup is observed and recorded, the sealing plate is opened to discharge the fine sand from the discharge pipe, the temperature controller and the electric heater are turned on to ensure the molding environment of the concrete test block, and the above operation is repeated again with the measuring cup after the concrete test block is completely formed, the data is recorded and compared with the initial data, so that the shrinkage of the concrete can be quickly and accurately understood, and the shrinkage performance of the concrete can be compared by performing 4 groups of tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a concrete shrinkage performance test box according to an embodiment of the utility model;

[0018] Figure 2 A concrete shrinkage performance test box according to an embodiment of the utility model Figure 1 A schematic diagram of the structure at A;

[0019] Figure 3 It is a schematic diagram of the overall structure of a positioning slider of a concrete shrinkage performance test box according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the position of the slideway of the gantry of a concrete shrinkage performance test box according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the installation structure of a first motor and a threaded rod of a concrete shrinkage performance test box according to an embodiment of the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the installation structure of a clamp head and a clamp rod of a concrete shrinkage performance test box according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Base; 2. Turntable; 3. Center column; 4. Fixed shell; 5. Measuring cup; 6. Mold; 7. Temperature controller; 8. Electric heater; 9. Cylinder shell; 10. Visual window; 11. Top cover body; 12. Bottom round plate; 13. Feeding tube; 14. Closing plate; 15. Fastener; 151. Clamp rod; 152. Clamp head; 153. Spring; 154. Positioning rod. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a concrete shrinkage performance test box is provided.

[0027] Please refer to the instruction manual Figure 1-6 According to an embodiment of the utility model, a concrete shrinkage performance test box includes a base 1, a turntable 2 is rotatably installed on the upper end of the base 1, a middle column 3 is fixedly connected to the center of the top of the turntable 2, a temperature controller 7 is fixedly installed on the inner top of the middle column 3, an electric heater 8 is fixedly connected to the inner lower end of the middle column 3, a cylinder shell 9 is fixedly installed on the outer side of the middle column 3, a bottom circular plate 12 is installed at the bottom end of the cylinder shell 9, a snap-fit ​​piece 15 is installed at the edge of the bottom circular plate 12 and the lower end of the cylinder shell 9, a fixed shell 4 is fixedly connected to the outer side of the base 1, and a measuring cup 5 for placing fine sand is slidably installed in the fixed shell 4.

[0028] When the device is used, a detachable mold 6 is used to make a concrete test block. After the concrete test block is initially formed, the top cover body 11 is opened to place it in the cylinder shell 9, the measuring cup 5 is filled with fine sand, and then the fine sand in the measuring cup 5 is added into the cylinder shell 9, the remaining amount of fine sand in the measuring cup 5 is observed and recorded, the sealing plate 14 is opened to discharge the fine sand into the measuring cup 5 through the discharge pipe 13 for collection, the temperature controller 7 and the electric heater 8 are turned on to adjust the temperature in the cylinder shell 9, and after the concrete test block is completely shrunk and formed, the operation of pouring fine sand is repeated, and the remaining amount of fine sand in the measuring cup 5 is recorded, and compared with the data recorded for the first time, the shrinkage amount of the concrete test block can be obtained. This test can accurately obtain the shrinkage performance data of concrete and maintain the integrity of the concrete test block, so that the test block can be used for other tests such as strength testing, thereby saving test costs.

[0029] In one embodiment, please refer to the attached specification Figure 1-6 As a further solution of the utility model, the base 1 is configured in a conical shape, and the edge of the turntable 2 is provided with anti-slip teeth.

[0030] The frustum can keep the base 1 stable, and the anti-slip teeth can make the rotation operation of the turntable 2 more convenient.

[0031] In another embodiment, please refer to the attached Figure 1-6 As a further solution of the utility model, a visual window 10 is provided on the inner side of the cylinder shell 9, a top cover body 11 is rotatably installed on the top of the cylinder shell 9, a pull block is fixedly connected to the top of the top cover body 11, the cylinder shell 9 is provided with 4 groups, the electric heater 8 is provided with 4 groups, and the electric heater 8 is located between the center column 3 and the cylinder shell 9.

[0032] The internal situation of the cylinder shell 9 can be observed through the viewing window, and the top cover body 11 can be conveniently opened by pulling the block. Four groups of cylinder shells can be used to perform four groups of tests for comparison.

[0033] In one embodiment, please refer to the attached specification Figure 1-6 As a further solution of the utility model, the fastener 15 includes a clamping rod 151, which is fixedly connected to the cylinder shell 9, a clamping head 152 is slidably installed on the inner side of the clamping rod 151, a spring 153 is fixedly connected to the outer side of the clamping head 152, a positioning rod 154 is rotatably installed on the bottom end of the clamping head 152, the positioning rod 154 is fixedly connected to the bottom circular plate 12, the spring 153 is slidably connected to the cylinder shell 9, and the diameter of the cylinder shell 9 is equal to the diameter of the bottom circular plate 12.

[0034] By pressing the clamping head 152, the spring is squeezed out of the clamping rod 151, thereby facilitating the separation of the bottom circular plate 12 from the cylinder shell 9, thereby facilitating the cleaning of the inside of the device.

[0035] In another embodiment, please refer to the attached Figure 1-6 As a further solution of the utility model, a mold 6 for making a concrete test block is placed inside the measuring cup 5, and the side plate of the mold 6 is rotatably connected to the bottom plate of the mold 6.

[0036] The mold 6 can be used to make an adaptable cylindrical shell 9 so that the concrete test block can be placed inside the cylindrical shell 9 .

[0037] In one embodiment, please refer to the attached specification Figure 1-6 As a further solution of the utility model, a feeding pipe 13 is fixedly connected to the center of the bottom end of the bottom circular plate 12, and a sealing plate 14 is slidably connected between the feeding pipe 13 and the bottom circular plate 12.

[0038] The discharge pipe 13 is convenient for discharging the fine sand in the cylindrical shell 9.

[0039] When in use, a detachable mold 6 is used to make a concrete test block. After the concrete test block is initially formed, the top cover body 11 is opened to place it into the cylinder shell 9, the measuring cup 5 is filled with fine sand, and then the fine sand in the measuring cup 5 is added into the cylinder shell 9, the remaining amount of fine sand in the measuring cup 5 is observed and recorded, the sealing plate 14 is opened to discharge the fine sand into the measuring cup 5 through the discharge pipe 13 for collection, the temperature controller 7 and the electric heater 8 are turned on to adjust the temperature in the cylinder shell 9, and after the concrete test block is completely shrunk and formed, the operation of pouring in fine sand is repeated, and the remaining amount of fine sand in the measuring cup 5 is recorded, and compared with the data recorded for the first time, the shrinkage amount of the concrete test block can be obtained. This test can accurately obtain the shrinkage performance data of concrete and maintain the integrity of the concrete test block, so that the test block can be used for other tests such as strength testing, thereby saving test costs.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete shrinkage performance test box, comprising a base (1), characterized in that: A turntable (2) is rotatably mounted on the upper end of the base (1), a middle column (3) is fixedly connected to the center of the top end of the turntable (2), a temperature controller (7) is fixedly mounted on the inner top end of the middle column (3), an electric heater (8) is fixedly connected to the inner lower end of the middle column (3), a cylinder shell (9) is fixedly mounted on the outer side of the middle column (3), a bottom circular plate (12) is mounted on the bottom end of the cylinder shell (9), a snap-fitting piece (15) is mounted on the edge of the bottom circular plate (12) and the lower end of the cylinder shell (9), a fixed shell (4) is fixedly connected to the outer side of the base (1), and a measuring cup (5) for placing fine sand is slidably mounted in the fixed shell (4).

2. A concrete shrinkage performance test box according to claim 1, characterized in that: The base (1) is arranged in a cone shape, and the edge of the turntable (2) is provided with anti-slip teeth.

3. A concrete shrinkage performance test box according to claim 1, characterized in that: A visual window (10) is provided on the inner side of the cylindrical shell (9), a top cover body (11) is rotatably mounted on the top end of the cylindrical shell (9), and a pull block is fixedly connected to the top end of the top cover body (11).

4. A concrete shrinkage performance test box according to claim 1, characterized in that: The clamping member (15) comprises a clamping rod (151), wherein the clamping rod (151) is fixedly connected to the cylinder shell (9), a clamping head (152) is slidably mounted on the inner side of the clamping rod (151), a spring (153) is fixedly connected to the outer side of the clamping head (152), a positioning rod (154) is rotatably mounted on the bottom end of the clamping head (152), and the positioning rod (154) is fixedly connected to the bottom circular plate (12).

5. A concrete shrinkage performance test box according to claim 4, characterized in that: The spring (153) is slidably connected to the cylindrical shell (9), and the diameter of the cylindrical shell (9) is equal to the diameter of the bottom circular plate (12).

6. A concrete shrinkage performance test box according to claim 1, characterized in that: A mold (6) for making a concrete test block is placed inside the measuring cup (5), and a side plate of the mold (6) is rotatably connected to a bottom plate of the mold (6).

7. A concrete shrinkage performance test box according to claim 1, characterized in that: The cylindrical shell (9) is provided with four groups, the electric heater (8) is provided with four groups, and the electric heater (8) is located between the middle column (3) and the cylindrical shell (9).

8. A concrete shrinkage performance test box according to claim 1, characterized in that: A feeding pipe (13) is fixedly connected to the center of the bottom end of the bottom circular plate (12), and a sealing plate (14) is slidably connected between the feeding pipe (13) and the bottom circular plate (12).

Images