A cleaning tool for an aerosol provision device includes a housing and a resiliently biased cap provided within the housing. The resiliently biased cap is translatable between a first position and a second position. At least one brush is coupled to the resiliently biased cap.

The present disclosure discloses a circulating water pump for a data center computer room, including a circulating water pump main body. A water inlet pipe and a water outlet pipe are respectively arranged on a left side and a right side below the circulating water pump main body. An end of the water inlet pipe is fixedly connected to a connecting pipe, on which there is provided with a cleaning pipe component I and a cleaning pipe component II having a same structure, and an electric butterfly valve is fixedly installed at an end of the cleaning pipe component I and of the cleaning pipe component II away from the water inlet pipe.

Ergonomic and flexible brushes for use in conventional processes such as commercial, residential, industrial, and artistic painting processes, as well as for cleaning and cosmetic applications, are disclosed. The functional section of the brush is connected to a flexible structure having a proximal end and a distal end. The distal end of the flexible structure is strongly connected to the functional section of the brush and the proximal section is connected to a handle or, in the alternative, to a second functional section using preferably metal epoxy such as steel epoxy. The functional section of the brush may be positioned and repositioned in predetermined angled and/or twisted positions by simply bending the flexible structure of the brush.

A toothbrush includes a brush head linkage (100), a connecting mechanism (200) and a toothbrush handle (300); the connecting mechanism (200) includes a first connector (210), a second connector (220) and an elastic structural element (230) connected to the second connector (220); the first connector (100) is rotatably connected to the second connector (220), and the axis of rotation extends in a front-rear direction; and the elastic structural element (230) includes at least one return torsion spring (231), the return torsion spring (231) includes a helix spring (2311) in the form of a cylinder with an opening of the cylinder oriented in a direction parallel to an extension direction of an oscillating reference line, the helix spring is in stop fit with the second connector (220) in a direction perpendicular to the oscillating reference line, and the return torsion spring further includes a first torsion bar (2311) and a second torsion bar (2312) respectively connected to a front end and a rear end of the helix spring (2311). The toothbrush according to the present disclosure can protect teeth.

The present invention provides a mechanically-actuated livestock brush apparatus, for tending to animal livestock, whose movement can be actuated and also controlled via a mechanical means. In an embodiment, the mechanical means may include a spring device. The mechanical means should be such that it provides sufficient resistance for a controlled movement of the brush apparatus preventing infinite movement, e.g., infinitely rotating/revolving, while also provides sufficient resistance such that when an animal pushes against it, it does not move freely or randomly, but puts resistive pressure against the animal's body for a good scratch. Also, the brush apparatus has a universal motion, allowing it to move in multiple directions.