A hand truck includes a cart base for carrying an article and two handle modules pivotally mounted thereto. When the hand truck is in a first state, the cart base is horizontally positioned and one handle module is pivoted to an upright position. When the hand truck is in a second state, the cart base is kept upright, one of the handle modules is pivoted to a spread position, and the other one of the handle modules is horizontally positioned and cooperates with the cart base to carry the article. When the hand truck is in a platform state, the cart base is horizontally positioned, and the handle modules are pivoted to a downward extending position so that the cart base is away from the ground.

Truck-type handling truck with a chassis and a back (40), and a low section, a nose plate attachment (41) and two wheels (71). The truck has a motor unit (60) mounted to the chassis (10) and an electric motor (61) connected to a differential transmission (62) with two lateral output shafts (621) and two track modules (50) each connected to a shaft (531) of the motor unit and mounted to swivel about this shaft independently between a position aligned with the chassis and a deployed position.

Truck-type handling truck with a chassis and a back (40), and a low section, a nose plate attachment (41) and two wheels (71). The truck has a motor unit (60) mounted to the chassis (10) and an electric motor (61) connected to a differential transmission (62) with two lateral output shafts (621) and two track modules (50) each connected to a shaft (531) of the motor unit and mounted to swivel about this shaft independently between a position aligned with the chassis and a deployed position.

A cart generally includes a body, a wheel assembly, first and second handles, and a scoop. The body defines an interior usable for holding materials. The body includes a forward portion and a rearward portion. The wheel assembly includes at least one axle and first and second wheels. Each of the first and second handles includes a handle portion to allow a user to move the cart and a leg portion for contacting a support surface. The scoop is rotatable relative to the body between a plurality of positions including at least a forward position and a rearward position. In the forward position, the scoop is adjacent the forward portion of the body, whereby the scoop increases carrying capacity of the cart. In the rearward position, the scoop is disposed at least partially over and/or adjacent the rearward portion of the body.

A cart generally includes a body, a wheel assembly, first and second handles, and a scoop. The body defines an interior usable for holding materials. The body includes a forward portion and a rearward portion. The wheel assembly includes at least one axle and first and second wheels. Each of the first and second handles includes a handle portion to allow a user to move the cart and a leg portion for contacting a support surface. The scoop is rotatable relative to the body between a plurality of positions including at least a forward position and a rearward position. In the forward position, the scoop is adjacent the forward portion of the body, whereby the scoop increases carrying capacity of the cart. In the rearward position, the scoop is disposed at least partially over and/or adjacent the rearward portion of the body.

A transport device with a transport vehicle. The transport device includes an elongated worktable and a worktable attachment interface provided on the transport vehicle by means of which the elongated worktable can be attached in a vertical orientation on the transport vehicle in order to assume a transport position in which the elongated worktable can be transported by the transport vehicle.

A transport device with a transport vehicle. The transport device includes an elongated worktable and a worktable attachment interface provided on the transport vehicle by means of which the elongated worktable can be attached in a vertical orientation on the transport vehicle in order to assume a transport position in which the elongated worktable can be transported by the transport vehicle.

A roller assembly includes at least one roller, an L-shaped board and at least one L-shaped fixing member. The L-shaped fixing member is fixed on the L-shaped board; and the roller is fixed and connected on the L-shaped board through the L-shaped fixing member. A package includes a box and the roller assembly. The box contains at least one hole and the roller protrudes from the hole. Further, the package is used as follows. The box is opened and the matter to be packaged is put into the box. Then the roller assembly is placed into the box, and the roller assembly is sandwiched between the box and the matter. Next, the roller(s) is aligned with the hole(s). Subsequently, the box and the matter are compressed to make the roller(s) protrude from the hole(s). Finally, the box are sealed from the bottom surface to complete the package.

A roller assembly includes at least one roller, an L-shaped board and at least one L-shaped fixing member. The L-shaped fixing member is fixed on the L-shaped board; and the roller is fixed and connected on the L-shaped board through the L-shaped fixing member. A package includes a box and the roller assembly. The box contains at least one hole and the roller protrudes from the hole. Further, the package is used as follows. The box is opened and the matter to be packaged is put into the box. Then the roller assembly is placed into the box, and the roller assembly is sandwiched between the box and the matter. Next, the roller(s) is aligned with the hole(s). Subsequently, the box and the matter are compressed to make the roller(s) protrude from the hole(s). Finally, the box are sealed from the bottom surface to complete the package.

A lift and extraction system for an automatic swimming pool cleaner may facilitate removal from the of the automatic swimming pool cleaner from a swimming pool, deployment of the automatic swimming pool cleaner into a swimming pool, and/or storage of the automatic swimming pool cleaner outside of the swimming pool. The lift and extraction systems may include a frame, motive elements, and one or more engagement features for selectively engaging and positioning the automatic swimming pool cleaner relative to the frame.