CN220820022U - Horizontal multiple concrete contractor with adjustable - Google Patents
Horizontal multiple concrete contractor with adjustable Download PDFInfo
- Publication number
- CN220820022U CN220820022U CN202322191740.5U CN202322191740U CN220820022U CN 220820022 U CN220820022 U CN 220820022U CN 202322191740 U CN202322191740 U CN 202322191740U CN 220820022 U CN220820022 U CN 220820022U
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- limiting
- adjustable
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- plate
- bottom plate
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- 239000002184 metal Substances 0.000 claims description 6
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses an adjustable horizontal multi-joint concrete shrinkage instrument which is characterized by comprising a bottom plate, a limiting groove, a dial gauge, a hygrothermograph, an upper limiting bolt, a lower limiting bolt and an adjustable limiting rod. The bottom plate is a thin shell member, the bottom is not sealed, and the top surface is provided with three grooves; the limiting plate is a rectangular thin plate; the limiting grooves are positioned on the limiting plate, the number of the limiting grooves is three, and a groove is formed in the middle of the limiting grooves; the dial indicator is fixed on the adjustable limiting rod; the temperature and humidity meter is fixed on the bottom plate; the adjustable limiting rod is provided with a vertical through hole from the center of the top surface to penetrate to the bottom surface, threads are arranged in the through hole, and a horizontal through groove is formed in the side surface; the number of the upper limit bolts and the number of the lower limit bolts are three respectively, and the sizes of the bolts are matched with the threads of the adjustable limit rod. Compared with the existing concrete shrinkage instrument, the device can measure a plurality of test blocks with different sizes at the same time and monitor the temperature and the humidity in real time, and is convenient for experimental operation.
Description
Technical Field
The utility model relates to a shrinkage experimental device for concrete materials in the field of civil engineering, in particular to an adjustable horizontal multi-joint concrete shrinkage instrument.
Background
Shrinkage of concrete refers to a phenomenon of volume shrinkage occurring at the initial stage of concrete setting or during hardening, and larger shrinkage may cause cracking of concrete, resulting in deterioration of a concrete structure. Therefore, the shrinkage parameter of the concrete is also an important index for judging the durability of the concrete at present. The existing horizontal concrete shrinkage instrument can only measure a single test piece with a fixed size, and cannot monitor the temperature and the humidity in real time. This results in the need to use multiple instruments when multiple test pieces of different sizes need to be measured. When the temperature and the humidity change greatly, the temperature and the humidity can not be found and adjusted in time, so that the experimental structure has larger error and even is invalid. Therefore, the concrete shrinkage instrument in the current stage needs to be improved, a plurality of test pieces with different sizes can be tested at the same time, and the environmental temperature and humidity can be monitored in real time.
Disclosure of utility model
The utility model aims to solve the problem that the existing concrete shrinkage instrument can only measure a single test block with a fixed size when performing shrinkage experiments, and provides an adjustable horizontal multi-joint concrete shrinkage instrument.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a horizontal multiple concrete shrinkage appearance with adjustable which characterized in that includes bottom plate, limiting plate, spacing groove, amesdial, hygrothermograph, last spacing bolt, lower spacing bolt, adjustable gag lever post, gasket, nut. The bottom plate, the limiting plate, the upper limiting bolt, the lower limiting bolt and the adjustable limiting rod are all made of metal, and the limiting groove is made of engineering plastics. The bottom plate is a thin shell member, the bottom is not sealed, and the top surface is provided with three grooves; the limiting plate is a rectangular thin plate; the limiting grooves are positioned on the limiting plate, the number of the limiting grooves is three, and a groove is formed in the middle of the limiting grooves; the dial indicator is fixed on the adjustable limiting rod; the temperature and humidity meter is fixed on the bottom plate; the adjustable limiting rod is provided with a vertical through hole from the center of the top surface to penetrate to the bottom surface, threads are arranged in the through hole, and a horizontal through groove is formed in the side surface; the number of the upper limit bolts and the number of the lower limit bolts are three respectively, and the sizes of the bolts are matched with the threads of the adjustable limit rod.
The adjustable horizontal multi-joint concrete shrinkage instrument is characterized in that the length of the upper limit bolt is shorter than that of the lower limit bolt, and the lower limit bolt is provided with a nut and a gasket.
The adjustable horizontal multi-joint concrete shrinkage instrument is characterized in that the limiting groove is used for determining the position of the test block. And clamping the test nails at the tail ends of the test blocks into the limit grooves to determine the positions of the test blocks, and determining the positions of the adjustable limit rod and the dial indicator according to the positions of the test blocks.
The adjustable horizontal multi-joint concrete shrinkage instrument is characterized in that the position of the adjustable limiting rod can be adjusted according to the size of the measurement test block. Placing the test block on the bottom plate, unscrewing the nut on the lower limit bolt after determining the position of the test block, screwing the nut on the lower limit bolt after adjusting the position of the adjustable limit rod, and fixing the adjustable limit rod on the bottom plate by utilizing the pressure between the bottom plate and the gasket on the lower limit bolt.
The adjustable horizontal multi-joint concrete shrinkage instrument is characterized in that the position of the dial indicator is adjustable. After the dial indicator is inserted into the side surface groove of the adjustable limiting rod, the position of the dial indicator is determined, the upper limiting bolt and the lower limiting bolt are screwed, and the dial indicator is fixed on the adjustable limiting rod by utilizing the pressure between the upper limiting bolt and the lower limiting bolt.
The adjustable horizontal multi-joint concrete shrinkage instrument is characterized in that the temperature and humidity meter and the bottom plate are integrated.
The utility model has the advantages of simple manufacturing materials and convenient operation, and can realize the shrinkage experiment on a plurality of test pieces with different sizes at one time and monitor the temperature and the humidity of the experimental environment in real time.
Drawings
In the figure, 1, a bottom plate; 2. a limiting plate; 3. a limit groove; 4. a dial gauge; 5. a hygrothermograph; 6. an adjustable stop lever; 7. an upper limit bolt and a lower limit bolt.
FIG. 1 is a block diagram;
Fig. 2 is a detailed layout of the bottom plate 1, the adjustable stop lever 6, the upper stop bolt 7, the lower stop bolt 8, the gasket I and the nut II;
FIG. 3 is a diagram of the dial indicator 4;
Detailed Description
The following are specific embodiments of the present utility model, and the technical solutions of the present utility model are further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
The utility model provides a horizontal multiple concrete shrinkage appearance with adjustable, its characterized in that, the device includes bottom plate 1, limiting plate 2, spacing groove 3, amesdial 4, hygrothermograph 5, adjustable gag lever post 6, goes up spacing bolt 7, down spacing bolt 8, gasket I, nut II. The base plate 1 is made of metal, is a 72 cm*67 cm*18 cm thin shell member, and is 0.2. 0.2 cm thick on each side, and the bottom is not sealed. The top surface has three slots of 0.5 cm by 50 cm. The limiting plate 2 is made of metal, is a rectangular thin plate with the thickness of 65 cm and 15 cm, and has the thickness of 0.2 cm. The limiting groove is made of engineering plastics, is a cuboid with a groove in the middle, and has a size of 10 cm x 3 cm and a thickness of 0.5 cm, and the size of the rectangular groove in the middle is 8 cm x 0.8 cm. The minimum precision of the dial indicator 4 is 0.001 mm, the measuring range is 0-1 mm, the dial indicator 4 can be fixed on the adjustable limiting rod 6 by screwing an upper limiting bolt 7 and a lower limiting bolt 8 in the adjustable limiting rod 6 into a side surface groove of the adjustable limiting rod 6. The temperature range of the temperature and humidity meter 5 is-30-50 ℃ and the precision is +/-1 ℃; the humidity range is 20-80% RH, and the precision is +/-5% RH. The adjustable limiting rod 6 is made of metal and is a cylinder with the height of 15 cm and the diameter of 2 cm; a vertical through hole with the diameter of 0.5 cm is formed at the center of the circle, penetrates through the whole adjustable limiting rod, and is internally provided with threads for connecting the limiting bolt 7; a groove with the length of 10: 10 cm is formed at the position of the side surface, which is 1 cm away from the upper top surface, and the whole adjustable limiting rod is penetrated; the adjustable stop lever 6 is fixed on the bottom plate 1 through a stop bolt 7. The limit bolts are made of metal and have two specifications, and three limit bolts are respectively arranged in each specification; the length of the upper limit bolt positioned at the upper end of the adjustable limit rod 6 is 7.5 cm, and the diameter is 0.5 cm, and the upper limit bolt is used for adjusting the position of the dial indicator 4; the lower limit bolt at the lower end of the adjustable limit rod 6 is 12.25 cm in length and 0.5 in diameter cm in diameter, and the lower end part of the lower limit bolt is provided with a gasket I and a nut II for fixing the adjustable limit rod 6 on the base plate 1 and fixing the dial indicator 4 by matching with the limit bolt at the upper end (shown in figure II).
Claims (5)
1. An adjustable horizontal multi-joint concrete shrinkage instrument is characterized by comprising a bottom plate, a limiting groove, a dial indicator, a hygrothermograph, an upper limiting bolt, a lower limiting bolt, an adjustable limiting rod, a gasket and a nut; the bottom plate is a thin shell member, the bottom is not sealed, and the top surface is provided with three grooves; the limiting plate is a rectangular thin plate; the limiting grooves are positioned on the limiting plate, the number of the limiting grooves is three, and a groove is formed in the middle of the limiting grooves; the dial indicator is fixed on the adjustable limiting rod; the temperature and humidity meter is fixed on the bottom plate; the adjustable limiting rod is provided with a vertical through hole from the center of the top surface to penetrate to the bottom surface, threads are arranged in the through hole, and a horizontal through groove is formed in the side surface; the number of the upper limit bolts and the number of the lower limit bolts are three respectively, and the sizes of the bolts are matched with the threads of the adjustable limit rod.
2. The adjustable horizontal multi-joint concrete shrinkage instrument according to claim 1, wherein the bottom plate, the limiting plate, the upper limiting bolt, the lower limiting bolt and the adjustable limiting rod are all made of metal.
3. The adjustable horizontal multi-joint concrete shrinkage instrument according to claim 1, wherein the limiting groove is made of engineering plastics.
4. The adjustable horizontal multi-joint concrete shrinkage instrument according to claim 1, wherein the upper limit bolt is shorter than the lower limit bolt in length, and the lower limit bolt is provided with a nut and a gasket.
5. The adjustable horizontal multi-joint concrete shrinkage meter of claim 1, wherein the hygrothermograph and the bottom plate are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322191740.5U CN220820022U (en) | 2023-08-15 | 2023-08-15 | Horizontal multiple concrete contractor with adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322191740.5U CN220820022U (en) | 2023-08-15 | 2023-08-15 | Horizontal multiple concrete contractor with adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220820022U true CN220820022U (en) | 2024-04-19 |
Family
ID=90708205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322191740.5U Active CN220820022U (en) | 2023-08-15 | 2023-08-15 | Horizontal multiple concrete contractor with adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220820022U (en) |
-
2023
- 2023-08-15 CN CN202322191740.5U patent/CN220820022U/en active Active
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