Vertical combined linear expansion and shrinkage tester

Abstract

The utility model discloses a vertical combined linear expansion and contraction tester, which relates to the technical field of vertical testers, and comprises a box body, a groove is arranged on the side wall of the box body, four first cylinders are fixedly arranged at the bottom of the groove, the telescopic ends of the first cylinders are fixedly connected with a tray, and the tray is fixedly connected with the vertical combined linear expansion and contraction tester. The top of the groove is fixedly connected with four circular rings, circular grooves are formed in the circular rings, and test rods are arranged in the circular grooves. By arranging the constant-temperature box, the linear expansion and shrinkage characteristics of the material at different temperatures can be reflected more truly, errors caused by temperature fluctuation are reduced, and more accurate comparison and analysis of different materials are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical testers, in particular to a vertical combined linear expansion and contraction tester. Background Art

[0002] The vertical combined linear expansion and contraction tester is an instrument used to test the linear expansion and contraction properties of materials. In the field of construction, understanding the linear expansion and contraction characteristics of materials is very important for design and construction. For example, the expansion and contraction of cement-based and gypsum-based materials will affect the structural stability and durability of buildings. By using the tester, the performance of different materials under different conditions can be evaluated, providing a basis for building design.

[0003] In materials research, temperature has a significant impact on the linear expansion and contraction behavior of materials. Precise temperature control is crucial to accurately evaluate and understand the properties of materials under different temperature conditions. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the background technology and to propose a vertical combined linear expansion and contraction tester.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A vertical combined linear expansion and contraction tester includes a box body, a side wall of the box body is provided with a groove, four first cylinders are fixedly installed at the bottom of the groove, the telescopic end of the first cylinder is fixedly connected to a tray, the top of the groove is fixedly connected to four rings, the rings are provided with annular grooves, and test rods are provided in the annular grooves. A constant temperature box for controlling the temperature is provided outside the box body, the constant temperature box is fixedly connected to two hinges, and the hinges are fixedly connected to the constant temperature box door.

[0007] Preferably, four second cylinders are fixedly mounted on the bottom of the box, and the telescopic ends of the second cylinders are fixedly connected to support seats.

[0008] Preferably, a support plate is fixedly connected to the side wall of the constant temperature box, and three measuring cups are provided on the top of the support plate.

[0009] Preferably, a glass window is installed on the thermostatic box door, and a handle is fixedly connected to the thermostatic box door.

[0010] Preferably, a level is provided on the top of the box, and a display is installed on the outer wall of the box.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. By setting up a constant temperature box, the utility model can better ensure the accuracy and reliability of the test data, can more truly reflect the linear expansion and contraction characteristics of the material at different temperatures, reduce the error caused by temperature fluctuations, and is conducive to more accurate comparison and analysis of different materials.

[0013] 2. By setting up a second cylinder and a level, the utility model can ensure that the test piece is evenly stressed during the test, reduce data deviation caused by tilt or instability, and thus improve the accuracy of linear expansion and contraction measurement. The stable horizontal state helps to reduce wear and loss of the instrument, extend the service life of the instrument, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a vertical combined linear expansion and contraction tester proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional front view of the tester body of a vertical combined linear expansion and contraction tester proposed by the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the tester body of a vertical combined linear expansion and contraction tester proposed by the present invention;

[0017] Figure 4 for Figure 3 A schematic diagram of the enlarged structure.

[0018] In the figure: 1 constant temperature box, 2 hinge, 3 constant temperature box door, 4 glass window, 5 handle, 6 support plate, 7 measuring cup, 8 box body, 9 groove, 10 first cylinder, 11 tray, 12 ring, 13 ring groove, 14 test rod, 15 display, 16 level, 17 second cylinder, 18 support base. DETAILED DESCRIPTION

[0019] Reference Figure 1-4 A vertical combined linear expansion and contraction tester includes a box body 8, which is rectangular. The side wall of the box body 8 is provided with a groove 9, which is rectangular. On the front of the box body 8, four first cylinders 10 are fixedly installed at the bottom of the groove 9. The telescopic end of the first cylinder 10 is fixedly connected to a tray 11. The tray 11 is provided with an opening. The size of the opening is the same as that of the measuring cup 7 and just fits the size. Four rings 12 are fixedly connected to the top of the groove 9. The rings 12 are provided with an annular groove 13. The annular groove 13 is provided with a test rod 14.

[0020] A constant temperature box 1 for controlling the temperature is provided outside the box body 8. The constant temperature box 1 is fixedly connected to two hinges 2, and the hinges 2 are fixedly connected to the constant temperature box door 3. Four second cylinders 17 are fixedly installed on the bottom of the box body 8, and the telescopic end of the second cylinder 17 is fixedly connected to the support seat 18. The side wall of the constant temperature box 1 is fixedly connected to the support plate 6, and three measuring cups 7 are provided on the top of the support plate 6. A glass window 4 is installed on the constant temperature box door 3, and a handle 5 is fixedly connected to the constant temperature box door 3. A spirit level 16 is provided on the top of the box body 8, and four displays 15 are installed on the outer wall of the box body 8.

[0021] The detailed working process of this utility model is as follows:

[0022] First, put the test object into the measuring cup 7 and add liquid. Then put the measuring cup 7 into the tray 11 and start the first cylinder 10. Put the test object until it touches the test rod 14. Then open the thermostat door 3 and put the tester body into the thermostat 1. Start the four second cylinders 17 and observe the spirit level 16 to make the tester body level.

[0023] Close the thermostatic chamber door 3, adjust the required temperature, and observe the tester body through the glass window 4 to see if it is normal. Due to the hydration expansion characteristics of the test object, it will move upward, and observe the display 15 to obtain data.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical combined linear expansion and contraction tester, comprising a box (8), characterized in that: A groove (9) is provided on the side wall of the box body (8), four first cylinders (10) are fixedly installed at the bottom of the groove (9), the telescopic ends of the first cylinders (10) are fixedly connected to a tray (11), four rings (12) are fixedly connected to the top of the groove (9), an annular groove (13) is provided in the annular groove (13), and a test rod (14) is provided in the annular groove (13), and a constant temperature box (1) for controlling the temperature is provided outside the box body (8), the constant temperature box (1) is fixedly connected to two hinges (2), and the hinge (2) is fixedly connected to a constant temperature box door (3).

2. The vertical combined linear expansion and contraction tester according to claim 1, characterized in that: Four second cylinders (17) are fixedly mounted on the bottom of the box (8), and the telescopic ends of the second cylinders (17) are fixedly connected to support bases (18).

3. The vertical combined linear expansion and contraction tester according to claim 1, characterized in that: A support plate (6) is fixedly connected to the side wall of the constant temperature box (1), and three measuring cups (7) are provided on the top of the support plate (6).

4. The vertical combined linear expansion and contraction tester according to claim 1, characterized in that: A glass window (4) is installed on the thermostatic box door (3), and a handle (5) is fixedly connected to the thermostatic box door (3).

5. The vertical combined linear expansion and contraction tester according to claim 2, characterized in that: A level (16) is provided on the top of the box (8), and a display (15) is installed on the outer wall of the box (8).

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