A cleaning mechanism having a self-locking function, comprising a cleaning rack, a cleaning member and a sweeping member, adapted for use on photovoltaic panel, is disclosed. The cleaning rack comprising a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are detachably connected. The cleaning member being detachably mounted between the first connecting rod and the third connecting rod, used for stripping off adhesive materials on photovoltaic panel; the sweeping member used for sweeping adhesive materials away from photovoltaic panel. Cleaning mechanism further comprises a cleaning member power unit, detachably connected with the cleaning member and used for driving cleaning member to rotate; and cleaning member power unit comprises a self-locking device, used for preventing cleaning member from idling, and sundries are prevented from being twisted thereon and meanwhile unnecessary wear between cleaning member and photovoltaic panel can be reduced.

A floor cleaner can include a housing adapted for movement over a surface to be cleaned and at least one edge cleaning brush provided on the housing. The edge cleaning brush includes multiple cleaning implements which rotate on different axes. A gear system, such as a planetary gear system, can drive one cleaning implement at a lower speed than another cleaning implement.

The invention provides a skin treatment device especially for use for treating skin in terms of cleaning, exfoliating and/or massaging the skin. The device comprising a housing and a skin treatment head releasably attached to the housing. The skin treatment head being rotatable around an axis element associated with the housing, wherein the housing encloses an actuator configured to rotate the skin treatment head, wherein the skin treatment head comprises one or more brushes associated with a support element, wherein the device further comprises a first thermally conductive element configured at a shortest distance (d1) to the one or more brushes selected from the range of 0-40 mm, and wherein the device further comprises a thermoelectric element configured to heat in a first mode the first thermally conductive element to provide a hot surface.

A device for use in dispensing tire chemical onto a cylindrical car tire brush, comprising, an elongated shield having a concave inside surface having a curvature generally matching the outside curvature of the cylindrical brush, a port entering into the inside surface of the shield for receiving a chemical, and at least one distribution groove formed into the inside surface, which distribution groove communicates with the port and is inclined downwardly at an angle so as to distribute the chemical longitudinally along the said inside surface.

An electrical appliance for personal care includes a handle with a longitudinal axis, and a plug-on part which can be attached to the handle, wherein a vibration unit having an electric motor and an eccentric element is arranged in the handle, wherein a plug-like coupling structure protrudes from the handle, which plug-like coupling structure forms an interface with a substantially mirror-inverted socket-like coupling structure of the plug-on part, wherein the interface has at least two stages with different circumferential geometry, wherein at least one of the stages has a rotation-preventing device between the handle and the plug-on part, and wherein a stop surface of the handle for the plug-on part extends obliquely with respect to the longitudinal axis of the handle.

This invention relates to a device (1) for performing personal care operations on a subject. The device (1) comprises a handheld base body (3), a driving unit (400) to receive and drive an interchangeable treatment head (2) to perform the personal care operation, a sensor (7) for measuring the amount of current drawn from a motor arrangement (5, 6) while the driving unit (400) is being operated. The device (1) further comprises a control unit (8) operably connected to the sensor (7) and the driving unit (400) and configured to control the driving unit (400). The control unit (8) is configured to identify the individual treatment head (2) fitted on the driving unit (400) by comparing the measured motor current at the predefined measuring time (t1) with at least one predefined current threshold (C).

A substrate cleaning apparatus (50) that cleans a substrate (S) includes: circumference supporting members (51) that support and rotate the substrate (S); a sponge (541) having a cleaning surface that is brought into contact with the surface to be cleaned of the substrate (S) being rotated by the circumference supporting members (51), and cleans the surface to be cleaned; an arm (53) that moves the sponge (541) in a radial direction of the substrate (S) while maintaining the cleaning surface in contact with the surface to be cleaned; and a controller (60) that controls the contact pressure of the cleaning surface on the surface to be cleaned. When the sponge (541) is located near the edge of the substrate (S), the controller (60) adjusts the contact pressure to a smaller value than that of when the sponge (541) is located near the center of the substrate (S).

A broom attachment is provided for a rotary sweeper assembly that includes a broom mount and a broom unit mountable to the broom mount. The broom attachment includes a plurality of broom attachment bristles and a support member having a retained portion and a retaining portion. The plurality of bristles extend from the retaining portion and the retained portion is operatively mountable to at least one of the broom mount and the broom unit. A broom assembly includes at least one broom attachment. When the broom attachment is operatively mounted to the broom mount, the broom attachment bristles are positioned at a greater radial distance away from an axis of rotation than the cleaning bristles of the broom unit. A method of assembling a broom attachment to a broom mount includes operatively mounting the retained portion to the broom mount.

A drive track for a cleaning robot moving on inclined surfaces such as photovoltaic panels has a multilayer structure comprising: an internal layer formed by a continuous belt having an internal face able to engage with means for driving the track; an intermediate layer including a plurality of damping blocks disposed over the entire length of the continuous belt of the internal layer with a predefined separation (e); and an external running layer coming into contact with the surface on which the track moves, the running layer being formed by pads supported by the damping blocks. The damping blocks are made of elastomer material and have a cellular structure with a plurality of parallel trough-channels.

A tool (10) for cleaning a drilled hole (12), including a tool shank (14) that, relative to the shank axis (A), has an axial attachment end (16) and an opposite axial cleaning end (18), as well as at least one conveying element (20) for removing drilling dust (22) from the drilled hole (12). The conveying element (20) is attached to the tool shank (14) and arranged in the axial direction like a helix around the tool shank (14). The conveying element (20) is configured as a channel (24) that is open in the direction of the attachment end (16). A method for cleaning a drilled hole by such a tool (10) is also disclosed.