Small bending strength sample preparation box structure

Abstract

The invention relates to a small bending strength sample preparation box structure which comprises a bottom plate, a short side wall, a long side wall and a connecting sliding chute, wherein the bottom plate has a rectangular panel-like structure; an upper side surface, a left side surface and a right side surface of the bottom plate are hinged to the connecting sliding chute by a hinge mechanism;the long side wall is connected with the upper side surface of the bottom plate by the connecting sliding chute; the short side wall is connected with the left side surface and the right side surfaceof the bottom plate by the connecting sliding chute; a plurality of anti-slipping slots are uniformly formed in an upper surface of the bottom plate; at least two positioning hooks are uniformly distributed on a rear surface of the bottom plate; the positioning hooks comprise positioning bases, rotating table mechanisms and hook bodies; lower surfaces of the positioning bases are slidably connected with sliding chutes; and upper surfaces are connected with the hook bodies by the rotating table mechanisms. The small bending strength sample preparation box structure provided by the invention issimple, flexible and convenient to use, strong in bearing capacity, and capable of effectively improving bearing and positioning ability of a sample box for slurry sprayed at a high pressure and greatly improving sample collection accuracy while effectively meeting compressive strength sample collection.

Description

technical field [0001] The invention relates to a device for spraying grouting, in particular to a small box structure for flexural strength sample preparation. Background technique [0002] At present, in the process of inspecting the spraying quality of the spraying operation surface, it is mainly to collect samples of the spraying slurry in the spraying operation by fixing one or more sample collection boxes on the spraying operation surface, and after the completion After the spraying operation, the relevant strength analysis of the concrete samples collected in the sample box can obtain the overall structural strength data of the spraying operation surface, so as to judge the quality of the spraying operation, but in actual use, it is found that the current The sample boxes used are generally made of simple materials such as wood boards. Although they have good bearing capacity and can meet the needs of use to a certain extent, it is found in use that the current sample...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of inspecting the spraying quality of the spraying operation surface, it is mainly to collect samples of the spraying slurry in the spraying operation by fixing one or more sample collection boxes on the spraying operation surface, and after the completion After the spraying operation, the relevant strength analysis of the concrete samples collected in the sample box can obtain the overall structural strength data of the spraying operation surface, so as to judge the quality of the spraying operation, but in actual use, it is found that the current The sample boxes used are generally made of simple materials such as wood boards. Although they have good bearing capacity and can meet the needs of use to a certain extent, it is found in use that the current sample box structure is often relatively fixed, which leads to It is very difficult to take out the sample in the sample box, and the sample can only be taken out after the structure of the sample box is often damaged, which leads to relatively low efficiency of sample collection operation, and also results in a low reuse rate of the sample box. poor, which increases the cost of sample collection and operation. In addition, when the current sample box loads the concrete sample, it mainly realizes the test through several bumps or boss structures installed on the bottom of the sample box. The sample concrete is loaded and positioned to improve the positioning stability of the concrete in the sample box. However, since the structures such as bumps and bosses are higher than the surface of the bottom plate of the sample box, there are a large number of groove structures on the lower surface of the concrete sample, which is easy to As a result, there are defects of stress concentration and insufficient local structural strength on the concrete sample structure, which has a great impact on the accuracy of concrete sample detection. Therefore, in view of this situation, it is urgent to develop an inventive concrete spraying operation Detect the structure of the sample box to meet the needs of actual use

Images