Abstract: A telescopic device (100) and a carrying robot (1000). The telescopic device (100) comprises: a loading base plate (10), telescopic arm assemblies (20), and a driving mechanism (30). The telescopic arm assembly (20) comprises at least two which are provided opposite to each other in a width direction of the loading base plate (10); each telescopic arm assembly (20) comprises a fixed arm (21) and a first sliding arm (22), the fixed arm (21) is mounted at the loading base plate (10), and the first sliding arm (22) is slidably provided at the inner side of the fixed arm (21). The driving mechanism (30) is used for driving the first sliding arm (22) to slide with respect to the fixed arm (21) along a length direction of the loading base plate (10). Because the telescopic device can achieve bi-directional extension and retraction, thereby improving carrying efficiency of the carrying robot.

Abstract: Disclosed are a method for preparing a high-strength anti-pollution anti-bacterial hollow fiber nano-filtration membrane and a product prepared by the method. The method comprises: S1, a chemical crosslinking reaction: placing an ultra-filtration base membrane in an acidic aqueous solution of glucose or an aqueous solution of phytic acid for a chemical crosslinking reaction to obtain a nano-filtration membrane; S2, a neutralization reaction immersing the nano-filtration membrane obtained in step S1 in an aqueous solution of alkali for the neutralization reaction, then washing the membrane to be neutral; S3, loading inorganic antibacterial agent: placing the membrane obtained in step S2 in an inorganic anti-bacterial agent solution for complexation, thereby obtaining a high-strength anti-pollution anti-bacterial hollow fiber nano-filtration membrane.

Abstract: Disclosed are a method for preparing a high-strength anti-pollution anti-bacterial hollow fiber nano-filtration membrane and a product prepared by the method. The method comprises: S1, a chemical crosslinking reaction: placing an ultra-filtration base membrane in an acidic aqueous solution of glucose or an aqueous solution of phytic acid for a chemical crosslinking reaction to obtain a nano-filtration membrane; S2, a neutralization reaction immersing the nano-filtration membrane obtained in step S1 in an aqueous solution of alkali for the neutralization reaction, then washing the membrane to be neutral; S3, loading inorganic antibacterial agent: placing the membrane obtained in step S2 in an inorganic anti-bacterial agent solution for complexation, thereby obtaining a high-strength anti-pollution anti-bacterial hollow fiber nano-filtration membrane.