A backpack tool apparatus including a backpack assembly and at least one tool. The backpack assembly includes a casing and at least one battery pack received in the casing. The at least one tool is connected to the casing and electrically connected to the battery pack. The backpack tool apparatus may be provided with multiple tools to simultaneously realize different operations and functions. Moreover, the tools may be configured to be detachably connected to the backpack assembly, and may be replaced with different tools to realize different operations and functions according to needs.

A cleaning system for pavement joints controlled and driven by a motor. A wheeled housing carries a nozzle system where a stream of pressurized or forced air is directed through rotating nozzles to clean the joint surfaces. The rotational speed (RPM) of the motor is selectively controlled by actuation of a valve by the operator, and allows the operator to selectively control the rate of rotation of the nozzles are required by the state of the surface to be cleaned. A suction head is further movable over the joint surfaces to remove the debris dislodged by the nozzle system and airflow.

The present invention is directed to a debris collection bag for a blowervac device that is carried on a user's back. This improves the user's mobility and allows an increased capacity for the collection bag. The bag's location provides a comfortable weight distribution by separating the weight of the blowervac from the weight of the collection bag. The bag has a dust dispersion system to direct dust away from the user. The bag has a closure located on the side which makes emptying the bag easier. The bag closure is provided to make opening and closing the bag easier and faster, and resistant to dust and debris.

The present invention is directed to a debris collection bag for a blowervac device, that is carried on a user's back. This improves the user's mobility and allows an increased capacity for the collection bag. The bag's location provides a comfortable weight distribution by separating the weight of the blowervac from the weight of the collection bag. The bag has a dust dispersion system to direct dust away from the user. The bag has a closure located on the side which makes emptying the bag easier. The bag closure is provided to make opening and closing the bag easier and faster, and resistant to dust and debris.

The present invention relates to a blowing-suction device. The blowing-suction device includes: a housing, having a first opening connected to the outside; an air tube, connected to the housing; an air flow generation apparatus that operably generates an air flow, where when the blowing-suction device is in the blowing mode, the air flow is blown out from the air tube, or when the blowing-suction device is in the suction mode, the air flow is sucked from the air tube; and a collection apparatus, configured to collect an object sucked by the blowing-suction device in the suction mode, where the collection apparatus is connected to the first opening both in the blowing mode and in the suction mode, and the collection apparatus further includes an air admission portion, and in the blowing mode, the air admission portion is open; or in the suction mode, the air admission portion is closed.

An improved sweeper and frame for a utility task vehicle includes a mounting frame which is attachable/detachable to the rear portion of the vehicle allowing detachment/attachment of the box portion of the vehicle as needed. The utility task vehicle mounting frame may be coupled with a lifting system to allow hydraulic aided dumping of the debris collection box of the sweeper system.

Provided is a vacuum blower, when used as a vacuum for sucking work, capable of increasing air flow with a larger volume of air sucked from a suction port and increasing the initial velocity (sucking rate) of sucked objects near the suction port, and when used as a blower for blowing work, capable of delivering rectilinearly directed wind from the blowing port and quickly switching between sucking work and blowing work. By sliding an inner pipe disposed inside a pipe relative to the pipe, opposite end portions of the inner pipe come into close contact with opposite end portions (turn portions) of a nozzle facing the opposite end portions of the inner pipe, such that one ejection port is closed and the other ejection port is opened to allow pressurized wind generated by a blower fan to be ejected along the inside of the inner pipe to switch between sucking state and blowing state.

The present invention is directed to a debris collection bag for a blowervac device, that is carried on a user's back. This improves the user's mobility and allows an increased capacity for the collection bag. The bag's location provides a comfortable weight distribution by separating the weight of the blowervac from the weight of the collection bag. The bag has a dust dispersion system to direct dust away from the user. The bag has a closure located on the side which makes emptying the bag easier. The bag closure is provided to make opening and closing the bag easier and faster, and resistant to dust and debris.

A mobile vacuum system includes a mobile support frame, a vacuum source connected to selectively vacuum materials into a primary collection tank and a secondary collection tank. The primary collection tank is mounted on the frame, while the secondary collection tank is connected to either the frame of the primary collection tank by a boom. The boom, which can be in the form of an articulated arm, allows the secondary collection tank to be moved through a wide range of motion relative to the frame, e.g., for dumping debris from the secondary tank.

A remote debris tank includes a housing having a top and a bottom discharge opening, a pair of discharge doors mounted to opposing lateral sides of the bottom discharge opening and configured for pivotal movement between an open position and a closed position, and an actuating shaft operably coupled to the first and second discharge doors. The remote debris tank also includes a crank lever having a plurality of vertices, where the crank lever is secured to the actuating shaft at a first vertex and configured to rotate with the actuating shaft. A first radial arm has a first end articulately connected to a second vertex of the crank lever and a second end articulately connected to the first discharge door. Similarly, a second radial arm is articulately connected to a third vertex of the crank lever and extending away from the actuating shaft to the second discharge door.