Abstract: A water-filtration device filtrates water, has a main-filtration path and a bypassing-filtration path, and comprises a filter head, a water filter, a guiding assembly and an adjusting valve movably mounted at the filter head. The guiding assembly is mounted at the filter head and connected to the water filter. An O-ring of the adjusting valve can block an end of a bypassing portion of the guiding assembly. In the main-filtration path, water entering from a water inlet of the filter head does not pass through the bypassing portion, thereby completely passing through filter materials in a first filtrating room and a second filtrating room of the water filter. Water in the bypassing-filtration path passes through the bypassing portion and the filter material in the first filtrating room. The O-ring does not reach into the bypassing portion, thereby reducing wear and damage to the O-ring, and avoiding water leakage.

Abstract: A boiler for a steam mop includes a boiler, one end of which is disposed with a water inlet and a steam outlet, the body is disposed with a loop liquid way and a heating device to vaporize the water inside the liquid way; a water inlet pipe, connected to the water inlet of the boiler through a first pipe joint; a steam pipe, connected to the steam outlet of the boiler through a second pipe joint; a steam nozzle, connected to the other end of the steam pipe. The boiler is applied with a loop liquid way, and the heating element is disposed beside the liquid way, so the water in the liquid way is heated with long heating trip.

Abstract: The present invention provides a gel-casting module, a main electrophoresis assembly, a casting stand for the main electrophoresis assembly and an electrophoresis tank.

Abstract: The present invention provides a gel-casting module, a main electrophoresis assembly, a casting stand for the main electrophoresis assembly and an electrophoresis tank.