Layered sampling device for concrete production

Abstract

The invention relates to the technical field of concrete production, and especially relates to a layered sampling device for concrete production. The device comprises a sampling cylinder, the outer side of the upper end of the sampling cylinder is movably sleeved with a cylinder cover, a plurality of placing frames are movably arranged in the sampling cylinder, and sampling bottles are placed in the placing frames; sample injection holes matched with a sampling bottle for use are uniformly formed in the right side of the outer wall of the sampling cylinder, the sample injection holes are communicated with a first through groove, the upper part of the inner cavity of the first through groove is rotatably connected with a shaft body through a bearing, a pull rope is fixedly wound on the outer side of the shaft body, and the lower end of the pull rope extends to the lower part of the first through groove; and baffles are evenly and fixedly connected to the outer side of the pull rope in asleeving mode. The layered sampling device is reasonable in structural design, convenient to use, convenient to sample, capable of achieving layered sampling, capable of avoiding sample singleness, beneficial to improving the accuracy of experimental data, convenient to clean, beneficial to repeated use, more convenient to use and more practical.

Description

technical field [0001] The invention relates to the technical field of concrete production, in particular to a layered sampling device for concrete production. Background technique [0002] Concrete is one of the most important contemporary civil engineering materials. It is prepared by cement, sand aggregate and water in a certain proportion, and then formed after being stirred and mixed by a mixing device. Concrete is currently the most widely used artificially prepared building material in the world. With the continuous development of the economy, my country's construction industry has developed rapidly, and the amount of infrastructure construction has continued unabated. As one of the most used building materials in modern construction projects, the demand for concrete has increased by leaps and bounds. In particular, super high-rise buildings require high-performance concrete, such as ultra-high pumpability, high-strength performance, and self-compacting properties. A...

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Problems solved by technology

[0003] In order to detect the proportion of sand, stone and cement inside the concrete, it is necessary to sample the concrete. In the traditional process, the discharge valve at the bottom of the mixing tank is opened to discharge the sample, but once the discharge valve is opened, due to its If the inner diameter of the outlet is too large, it will discharge a large amount of concrete, but the actual sampling only needs a small dose, resulting in waste of concrete, and it is easy to lead to a single sampling, and it is impossible to sample the concrete in the mixing tank at multiple places, which makes the later experiment The deviation of the data has great limitations in use. In addition, the traditional sampling device is inconvenient to clean, not conducive to repeated use, and cannot well meet the needs of use.

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