The disclosed invention utilizes deformable gaskets configured to form a seal which slides through the grooves and across the tops of escalator and travelator treads and using evacuation cleaning components as either a complete escalator and travelator tread cleaning machine or an accessory device configured to operate with an existing vacuum carpet evacuation apparatus. The disclosed gaskets in combination with evacuation and spray nozzle manifolds connected by escalator and travelator groove passages form a basic embodiment of the disclosed tread engagement assembly. In certain embodiments, the disclosed apparatus utilizes certain components of carpet evacuation equipment in combination with the disclosed v for cleaning escalator and travelator treads, including both the risers and treads of the escalator and travelator.

A method for cleaning a paint spray gun, which comprises a rotating atomization head to apply a coating material while rotating and an outer circumferential tube to cover the exterior of the rotating atomization head, has a cleaning solution application step for applying a cleaning solution to the external face of the outer circumferential tube, and a rotating atomization head rotation step for generating a rotational flow between the rotating atomization head and the outer circumferential tube by rotating the rotating atomization head. The cleaning solution flowing down the external face of the outer circumferential tube applied in the cleaning solution application step penetrates between the rotating atomization head 5 and the outer circumferential tube by way of the rotational flow. Such method uses a small amount of cleaning solution for cleaning external and internal faces of the outer circumferential tube and the external face of a rotating atomization head.

A pressure washing system is disclosed for integration into a recreational vehicle or other large mobile vehicle. The wand of the system includes a rotating brush and one or more sensors to determine a distance from, pressure against, or orientation with respect to the vehicle. While a pump is supplying water to be output by the wand, the distance, pressure, orientation, or other sensor readings are continuously used to modify output characteristics of the wand, including the output water pressure and the speed of rotation of the brush. As a result, no more pressure is supplied by water or brush bristles than is necessary, avoiding overuse of water or damage to outer surfaces of the vehicle. Sensor readings may include one or more of a camera feed, sonar, lidar, pressure feedback, and accelerometer data. The system may also be responsive to a mobile app on a user's mobile computing device.

A vehicle wheel cleaning apparatus configured to provide cleaning of a vehicle wheel particularly the interior surfaces thereof. The vehicle wheel cleaning apparatus is operable to be coupled to a water source such as but not limited to a pressure wand. A clamping member is included to provide a sealable coupling to the water source. The clamping member has a first portion secured to the water source and a second portion secured to the apparatus. A rotational coupling is provided and is configured to allow rotational movement of a ball assembly. The ball assembly includes a stem member secured to the rotational coupling and a solid silicon ball. Formed in the ball is a channel wherein the channel has divergent portions that are directed to opposing sides of the ball so as to discharge water therefrom.

Provided is a carwash machine. The carwash machine includes: a steam generator and a spray gun connected to the steam generator. The steam generator has a gas outlet used for discharging gas. The spray gun includes a spray gun outer shell and an operating handle. The operating handle is provided on the spray gun outer shell. The steam generator includes: a boiler body, the boiler body having a combustion chamber, and the combustion chamber being in communication with the gas outlet; an inner cover, the inner cover being sleeved on an outer side of the boiler body, and a gap between the inner cover and the boiler body forming a gas discharge channel used for connecting the combustion chamber and the gas outlet; and an outer cover, the outer cover being sleeved on an outer side of the inner cover. The spray gun also includes: a locking switch.

A water-fed pole for window cleaning including: an extendable pole having two or more pole sections, the pole sections being moveable relative to each other, in use, to extend and shorten the pole; and one or more clamps, each clamp being coupled to a given pole section and being operable to clamp the given pole section to an adjacent pole section, thereby fixing, in use, the length of the pole. Each clamp including a clamping surface arranged such that, on operation of the clamp, the clamping surface is brought into contact with a surface of the adjacent pole section to clamp the given pole section to the adjacent pole section. The at least a portion of the clamping surface made up of a resilient material.

An on-board pressurized washing system that utilizes a semi-tractor or trailer's compressed air brake line as its source of compressed air. When the tractor is parked, the air brake lines may be disconnected from the trailer and hooked up to the pressurized washing system. The system is fully mobile and does not need an external power source or water line during operation. The water from the water tank and the compressed air are sprayed separately or together from a spray wand to meet cleaning and sanitation needs of truck drivers in any location when they may not have access to electricity or a water source.

A pressure regulating bypass valve (1) comprises a hollow element (10) internally defining a chamber (C); an interception member (20) housed inside the chamber (C) and that is slidably movable between a discharge position and a delivery position; and an elastic means (30) configured to exert an elastic force on the interception member (20) so as to push the interception member (20) towards the discharge position and determine a positioning and/or movement of the interception member (20) between the discharge position and the delivery position; the interception member (20) is further positionable in an intermediate position between the discharge and delivery positions. The elastic means (30) comprises a first elastic element (31) and a second elastic element (32) having greater rigidity than the first elastic element (31) and they are arranged in series so that the interception member (20) can reach the intermediate position by means of a deformation of at least the first elastic element (31) and in such a manner that a subsequent passage of the interception member (20) from the intermediate position to the delivery position is determined at least partly by an at least partial compression of the second elastic element (32).

The utility model discloses a dual-purpose rotating spray gun for dust removal and cleaning, comprising a gun body (1), a trigger switch (2), a pot body assembly and a rotating spray apparatus, wherein the rotating spray apparatus comprises a bidirectional connector (3), a spray nozzle (4), a connecting sheath (7), a hollow rotating shaft (5), a rotating spray head (10), a spray pipe (9) and a cleaning solution suction pipe (13); one end of the bidirectional connector (3) is fixed to an air passage outlet of the gun body (1); the other end is fixed to the connecting sheath (7); the hollow rotating shaft (5) is arranged in the connecting sheath (7); the spray nozzle (4) is fixed to an outlet of the bidirectional connector (3); the spray head of the spray nozzle (4) is matched with the hollow rotating shaft (5); the rotating spray head (10) is fixed to the hollow rotating shaft (5) and is provided with a rotating spray track (18); the spray pipe (9) is fixed to the rotating spray track (18); an inlet of the spray pipe (9) is communicated with the hollow rotating shaft (5); and an outlet of the spray pipe (5) is positioned on an outer end surface of the rotating spray head (10). After the structure is adopted, the utility model has the characteristics of simple structure, convenient production and processing, stable quality, low operating conditions, good dust removal and cleaning effects, long life and the like.

A pressure washing system is disclosed for integration into a recreational vehicle or other large mobile vehicle. The wand of the system includes a rotating brush and one or more sensors to determine a distance from, pressure against, or orientation with respect to the vehicle. While a pump is supplying water to be output by the wand, the distance, pressure, orientation, or other sensor readings are continuously used to modify output characteristics of the wand, including the output water pressure and the speed of rotation of the brush. As a result, no more pressure is supplied by water or brush bristles than is necessary, avoiding overuse of water or damage to outer surfaces of the vehicle. Sensor readings may include one or more of a camera feed, sonar, lidar, pressure feedback, and accelerometer data. The system may also be responsive to a mobile app on a user's mobile computing device.