The vacuum suctioning unit of the present invention includes: a cover provided with an air entrance; an impeller for circulating air that enters the air entrance; a motor provided with a shaft connected to the impeller; a guide device for guiding the flow of air that exits an exit of the impeller; and a motor housing that houses the motor and is provided with an air exit. The guide device includes: a guide body disposed below the impeller; a first guide vane formed on a side surface of the guide body and guiding air discharged from the impeller; and a second guide vane formed on the bottom surface of the guide body and connected to the first guide vane to guide air that is moved by the first guide vane. The entrance angle of the first guide vane is within the range of 10 to 27 degrees.

The vacuum suctioning unit of the present invention includes: a cover provided with an air entrance; an impeller for circulating air that enters the air entrance; a motor provided with a shaft connected to the impeller; a guide device for guiding the flow of air that exits an exit of the impeller; and a motor housing that houses the motor and is provided with an air exit. The guide device includes: a guide body disposed below the impeller; a first guide vane formed on a side surface of the guide body and guiding air discharged from the impeller; and a second guide vane formed on the bottom surface of the guide body and connected to the first guide vane to guide air that is moved by the first guide vane. The entrance angle of the first guide vane is within the range of 10 to 27 degrees.

A stator includes a yoke extending to surround an axis, and having an outer circumference and an inner circumference. The yoke has a crimping portion projecting from the outer circumference, and a split surface provided at a position different from a position of the crimping portion. The yoke has a magnetic path which is provided between the outer circumference and the inner circumference and through which magnetic flux flows. When L1 represents the width of the magnetic path, and L2 represents the width of the yoke including the crimping portion, L1<L2<2.6×L1 is satisfied.

An improved vacuum device for use with a vacuum assisted post hole digger tool. The improved vacuum device includes two suction providing motors with their suction outlets connected in a parallel fashion directly to a filter box. The dual motor configuration provides significantly improved suction power over existing vacuum devices but is still able to be powered on household 120V AC power. The improved vacuum device is paired with a post hole digger apparatus which includes an elongated hollow tubular tool for transmitting vacuum to the base end of the tube. The base end of the tube further comprises a variety bore heads for breaking up soil. A variety of devices for breaking up soil or removing clogs around the bore head are included: a thrasher bar, a hammer bar and an unclogger bar. Each of these devices are designed to be activated either manually by the user by application of force at the upper end of the tool or by application of rotary force by a motor disposed at the top of the housing.

A dust collector, including a casing, a dust collection system arranged in the casing, an impeller (100) and a permanent magnet type brushless direct current motor (200). The impeller (100) is arranged in the casing and located downstream of the dust collection system. The permanent magnet type brushless direct current motor (200) is connected to the impeller (100) and located at a side, far away from the dust collection system, of the impeller (100). The permanent magnet type brushless direct current motor (200) includes a stator (2), a rotor (3) and a block-shaped permanent magnet (4). The rotor (3) and the stator (2) are arranged coaxially, the rotor (3) can rotate relative to the stator (2), and the permanent magnet (4) is fixed to the rotor (3).

An all in the head surface cleaning apparatus may include a surface cleaning head having an air flow path extending from a dirty air inlet to a clean air outlet. The surface cleaning head may include a cyclone including a cyclone chamber and a longitudinal cyclone axis. The surface cleaning head may include a pre-motor filter chamber housing a pre-motor filter. The pre-motor filter may have an upstream face, a downstream face and a pre-motor filter axis that is generally parallel to the upstream and/or downstream face. The surface cleaning apparatus may have a suction motor having a first end, a second end, a suction motor inlet and a suction motor axis extending between the first and second ends. The cyclone axis may be oriented generally transverse to a forward direction of travel and the pre-motor filter axis may be generally parallel to the forward direction of travel.

An all in the head surface cleaning apparatus may include a surface cleaning head having an air flow path extending from a dirty air inlet to a clean air outlet and a brush motor drivingly connected to a moveable brushing member and the brush motor may have a brush motor axis. The surface cleaning head may include a cyclone comprising a cyclone chamber and a dirt collection chamber external to the cyclone chamber. The cyclone may have a longitudinal cyclone axis. The surface cleaning head may have a suction motor having a first end, a second end and a suction motor axis extending between the first and second ends. The suction, cyclone and brush motor axes may be generally parallel. The cyclone chamber may have an air outlet end that is opposed to and faces an air inlet end of the suction motor.

A wet-and-dry floor brush for a vacuum cleaner, including a floor brush body including at least one dust suction port at a bottom of the floor brush body, and a wet mopping device including a base plate for mounting a mop cloth, and a liquid supply tank located on an upper side of the base plate, the base plate including liquid discharge holes, and the liquid supply tank includes an air inlet in communication with the outside. The bottom of the liquid supply tank has a liquid outlet in fluid communication with liquid discharge holes. The liquid outlet includes a valve for opening and closing the liquid outlet, and the liquid supply tank includes an external action member, the action member and valve configured to allow the transmission of motion to open or close the liquid outlet by operating the action member.

A wet-and-dry floor brush for a vacuum cleaner, including a floor brush body including at least one dust suction port at a bottom of the floor brush body, and a wet mopping device including a base plate for mounting a mop cloth, and a liquid supply tank located on an upper side of the base plate, the base plate including liquid discharge holes, and the liquid supply tank includes an air inlet in communication with the outside. The bottom of the liquid supply tank has a liquid outlet in fluid communication with liquid discharge holes. The liquid outlet includes a valve for opening and closing the liquid outlet, and the liquid supply tank includes an external action member, the action member and valve configured to allow the transmission of motion to open or close the liquid outlet by operating the action member.

A weld wheel cleaning system is provided to clean or remove a layer of embedded material and other debris produced from welding from the working surface of a weld wheel. Such a weld wheel cleaning system includes a cleaner with an abrasive material positioned on an outer surface of the cleaner. The cleaner is positionable adjacent to the weld wheel such that the abrasive material is aligned with the working surface of the weld wheel. An actuator can be used to selectively actuate the cleaner with a force sufficient to remove the layer of embedded material from the working surface of the weld wheel with the abrasive material. The debris from the cleaner can be removed by a vacuum.