Concrete test piece fixture in shape like half of figure 8

• Main Authors: CHEN XIA, YAN XIAOHU, FENG QIANG, LYU XINGDONG, ZHOU SHIHUA, DONG YUN, GUO DAHAI, LIN YUQIANG, CAO YA, PENG ZHILING, MAO XIAOHUI, LI MINGXIA, ZHANG JIANFENG, LI JIAZHENG, SHI YAN, LEI JING, LI YANG, YAO XINHUA
• Format: Patent
• Language: Chinese; English
• Published: 07.02.2020
• Subjects: CLEANING; CLEANING IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICS; PREVENTION OF FOULING IN GENERAL; TESTING; TRANSPORTING

The invention discloses a concrete test piece fixture in a shape like half of a figure 8. The concrete test piece fixture comprises a chuck, wherein flanges, rotatable elastic strips and cleaning devices which cooperate with each other are arranged on the chuck; the chuck comprises clamping parts and a semicircle part, a flange is arranged on the semicircle part, and an object sensor is arranged at the inner side of the flange on the semicircle part; each elastic strip is arranged opposite to the opposite sides of the corresponding flange, and the elastic strips and the baffles jointly limit an axial movement of a concrete test piece; each cleaning device comprises an air passage arranged in the chuck; an air inlet pipe is connected above each air passage, a control valve is arranged on each air inlet pipe, each control valve is connected with a PLC controller, and the PLC controller is electrically connected with the object sensor; and the PLC controller opens or closes the control valves by virtue of a sens