A charging compartment adapted for use on a body of a photovoltaic panel cleaning equipment for recharging of battery power of the photovoltaic panel cleaning equipment is provided, in which the charging compartment includes a charging and stopping rack and a telescopic supporting rack. The charging and stopping rack is used for stopping a body and charging the body, and the telescopic supporting rack is used for supporting the charging and stopping rack. The charging and stopping rack and a photovoltaic panel to be cleaned are enabled and configured to be on a same plane by adjusting the angle of the charging and stopping rack. By adopting the charging compartment, the photovoltaic panel cleaning equipment is facilitated to allow the body to remain stationary while being together with the photovoltaic panels which are undergoing cleaning, as well as same time recharging battery power of the photovoltaic panel cleaning equipment.

A self-charging terminal, which includes a terminal fixing block, a sloped conductive member and a sloped conductive member mounting member is disclosed. The self-charging terminal is adapted for a photovoltaic panel cleaning equipment for facilitating recharging of battery power. The sloped conductive member is fixed on the sloped conductive member mounting member and the sloped conductive member mounting member is fixed on the terminal fixing block. The self-charging terminal is detachably mounted on the photovoltaic panel cleaning equipment and a shape of the sloped conductive member of the self-charging terminal is specifically matched with that of a telescopic charging member of photovoltaic panel cleaning equipment to facilitate wipe off an oxidization layer on the sloped conductive member, thereby prolonging service life of the self-charging terminal and extending repair cycle time. A photovoltaic panel cleaning equipment including the self-charging terminal mounted on a charging compartment thereof is also disclosed.

A method and device for cleaning and pretreating solar panels is provided. The device comprises a brush having cleaning elements made from silicone foam rubber material. The cleaning elements can be flaps of silicone foam rubber material. A sheet of silicone foam rubber material having two free ends can be attached to a core member such that the two free ends extend away from the core member to form flaps. The solar panels can be cleaned by brushing the solar panel surfaces with the flaps of silicone foam rubber material. The solar panels can also be pretreated by brushing the solar panel surfaces with silicone foam rubber material.

A method and device for cleaning and pretreating solar panels is provided. The device comprises a brush having cleaning elements made from silicone foam rubber material. The cleaning elements can be flaps of silicone foam rubber material. A sheet of silicone foam rubber material having two free ends can be attached to a core member such that the two free ends extend away from the core member to form flaps. The solar panels can be cleaned by brushing the solar panel surfaces with the flaps of silicone foam rubber material. The solar panels can also be pretreated by brushing the solar panel surfaces with silicone foam rubber material.

A system for internal air blasting of an enclosed space includes a ground vehicle, an arm supported by the ground vehicle, and a blasting nozzle provided at the end of the arm. The blasting nozzle being configured to direct blast media to a desired surface of the enclosed space to be treated by the arm. A method of internal air blasting an enclosed space is further disclosed.

A cleaning mechanism having a water spray function adapted for cleaning photovoltaic panel is provided, which includes a cleaning rack, a cleaning member and a sweeping member. Cleaning rack includes several connecting rods detachably connected; Cleaning member is detachably mounted between the connecting rods and used for stripping off adhesive materials on photovoltaic panel; the sweeping member being detachably mounted on connecting rods and used for sweeping the adhesive materials away from the photovoltaic panel. A water spray device is detachably mounted on the cleaning rack used for wetting adhesive materials. The water spray device includes a water spray pipe and a water storage tank, and a spray nozzle atomizing water. A cleaning member power unit is detachably connected with the cleaning member and is used for driving the cleaning member to rotate; and the cleaning member power unit comprises a self-locking device used for preventing cleaning member from idling.

A windscreen wiper device comprising an elastic, elongated carrier element, as well as an elongated wiper blade, which can be placed in abutment with a windscreen to be wiped, which wiper blade includes at least one longitudinal groove, in which groove a longitudinal strip of the carrier element is disposed, which windscreen wiper device comprises a connecting device for an oscillating arm, wherein the oscillating arm is pivotally connected to the connecting device about a pivot axis near one end, with the special feature that the longitudinal groove has a closed circumference, wherein the connecting device is connected to the wiper blade.

The invention is a windshield washer preparation, a method for producing the preparation and a device that produces the preparation. The method uses the dehydration of methanol and distillation of dimethyl ether to produce the preparation and a propellant for pressurized packaging. The washer preparation contains deionized water, methanol, dimethyl ether, dimethyl carbonate and additional compounds selected from the group consisting of dyes, de-foaming agents and surfactants. The disclosed method and device can formulate varying combinations of methanol, deionized water and dimethyl ether using the methanol dehydration reaction prior to the addition of dimethyl carbonate. The preparation can be used in automobile washer reservoirs or directly on the windshield using trigger spray applicators or an aerosol can. The excess dimethyl ether from the method can be used taken from the system and stored for future use.

A moving mechanism adapted for use on a photovoltaic panel cleaning equipment for moving while cleaning one or more photovoltaic panels is disclosed, which includes a cleaning rack, a plane walking unit and a side surface walking unit. The plane walking unit drives the cleaning rack to move along a panel surface of a photovoltaic panel, and the side surface walking unit drives the cleaning rack to move along the side surface of upper edge of photovoltaic panel; the plane walking unit includes driving wheels diagonally and detachably mounted on diagonal line of cleaning rack, driving wheels driven by driving motors; side surface walking unit includes driving wheels and driven driving motors. Moving mechanism allows for more uniformly stress distribution during forward and backward movement on the photovoltaic panel. The photovoltaic panel cleaning equipment including the moving mechanism is also disclosed.