181results about How to "Avoid affecting the experimental results" patented technology

The invention relates to a comprehensive shear tester for anchoring bodies, which comprises a bottom plate, a left vertical plate and a right vertical plate are arranged on the bottom plate, a top plate is arranged at the upper ends of the left vertical plate and the right vertical plate, a left jacking cylinder and a right jacking cylinder are arranged on the upper surface of the bottom plate, aleft pressing cylinder, a middle pressing cylinder and a right pressing cylinder are fixedly arranged on the lower surface of the top plate, a first test box is placed on the left jacking cylinder, asecond test box is placed on the right jacking cylinder, a third test box is arranged between the first test box and the second test box, and the interiors of the first test box, the second test box and the third test box are connected together in series through an anchor rod or an anchor cable. The invention further discloses a test method for the comprehensive shear tester for anchoring bodies.The comprehensive shear tester can be widely applied in the performance test of various anchor rods or anchor cables, and can accurately test the operating characteristics of the anchor rod or the anchor cable under the effect of shear, test results are reliable, the shear fracture of the anchor rods and the anchor cables in the process of production can be effectively reduced, and a scientific basis can be provided for mine supports and the like.

The invention provides a soil sampling detecting device and method. The device comprises a working platform, a soil sampling device and a soil sample collecting and storing device. The device and themethod solve the problems that more time is wasted in a traditional manual soil sampling method, the working intensity of workers is high, the soil is highly damaged in the sampling process, the uppersoil falls to a sampling layer during manual sampling, and the soil analyzing accuracy is interfered, and the analyzing result accuracy is ensured; in addition, manual storing of the soil sample easily leads to ignoring, resulting in disordered test tube stacking, and some soil detection is influenced by the air component; the samples in the test tubes are to be insulated from air; a test plug ismanually added to the test tube; the manual operation stability is low in the manual tube plug adding process; the test tube is broken and injures people due to high power, or the test tube plug is forged due to the ignoring of people.

The invention specifically provides a thermostatic water bath provided with a heating piece fixing device. The thermostatic water bath comprises a water bath casing (1) and a thermostatic heating tank (2), wherein iron stand accommodating grooves (3) are formed between the water bath casing (1) and the thermostatic heating tank (2), a telescopic iron stand (7) is arranged in each iron stand accommodating groove (3), two symmetrical clamping rings are arranged on the inner side wall of an opening of each iron stand accommodating groove (3), two buckles (8) matched with the clamping rings are arranged on the outer side wall of the bottom of each iron stand (7), a fixing clamp accommodating groove (4) is formed beside the thermostatic heating tank (2), and a fixing clamp (6) is arranged in the fixing clamp accommodating groove (4). The heating piece fixing device is mounted on the thermostatic water bath, the problems that experimental apparatuses such as test tubes, beakers and the like used in the experimental process are difficult to fix in the thermostatic heating process is solved, the condition that the experimental result is affected due to inclination of the experimental apparatuses such as test tubes, beakers and the like is prevented, and the risk caused by hot water to a person in the operation process is reduced.