A toolbox comprises a rigid case having an open top side providing access to an internal case storage volume therein, and a rigid cover with an open bottom side open to a cover storage volume. The cover is fixed with the case at a plurality of hinges. A removable message board and marking implement are selectively fixed within the cover storage volume of the cover. The rear side of the case includes winding posts around which a power cord is wound that conducts power to a power strip circuit having a plurality of power receptacles fixed with the case. An audio system is fixed with the case and includes a plurality of speakers, a display interface, a wireless audio signal receiver, and a control circuit. An optional bottle opener and removable lamp device may be further included.

A toolbox group connecting structure includes a connecting device and a snap-fitting device. The connecting device and the snap-fitting device are respectively installed on two adjacent toolboxes, and the two adjacent toolboxes are inserted to mate through the connecting device and the snap-fitting device, a plurality of toolboxes together form a trolley tool cart. By combining the plurality of toolboxes into the trolley tool cart that can be easily moved, the connection between the toolboxes constitutes an independent connection, thus making classification clear and not affecting each other. Therefore, it is possible to take and put down one toolbox in any position directly, and it is only necessary to separate two toolboxes connected to the toolbox. Meanwhile, the toolbox has a weight no effect on a process of taking, so that taking the toolbox is more efficient and quicker.

A modular storage system of connectable, heavy-duty storage boxes, crates, rolling carts and/or dollies, work surfaces, organizers, trays, accessories is provided for internal and external item storage and organization and convenient access for use and transport, that is expandable, customizable and readily adaptable. Storage boxes have different sizes by length, width and/or height and have universal box-to-box connection system for stacking and connection to mounting accessories. Boxes have removable, customizable organization inserts (e.g., dividers, storage trays, bins, alignment trays for bins, and bins of different sizes). Box lid rib grid with bosses and undercuts expands internal organization, including cooperation with dual purpose dividers and accessories. Boxes have external mounting accessories to expand external organization. Different housing modes are provided including wall mount systems for wall or side of a truck or van, and different transport modes are provided (e.g., base box with wheels, or on a dolly or a cart).

A modular storage system of connectable, heavy-duty storage boxes, crates, rolling carts and/or dollies, work surfaces, organizers, trays, accessories is provided for internal and external item storage and organization and convenient access for use and transport, that is expandable, customizable and readily adaptable. Storage boxes have different sizes by length, width and/or height and have universal box-to-box connection system for stacking and connection to mounting accessories. Boxes have removable, customizable organization inserts (e.g., dividers, storage trays, bins, alignment trays for bins, and bins of different sizes). Box lid rib grid with bosses and undercuts expands internal organization, including cooperation with dual purpose dividers and accessories. Boxes have external mounting accessories to expand external organization. Different housing modes are provided including wall mount systems for wall or side of a truck or van, and different transport modes are provided (e.g., base box with wheels, or on a dolly or a cart).

Described herein are various coupling systems to be used with storage units that are selectively coupled and decoupled. The coupling systems may be used with storage units that are stackable and/or transportable, thus allowing the storage units to function well within a large stationary environment, such as a basement, and also for a subset of the storage units to be selected and easily moved to another location.

A transport box having an interior for accommodating goods to be transported and a wall structure which provides a horizontally oriented transport-box upper face and a horizontally oriented transport-box lower face. The transport box includes a coupling interface for detachable, vertical coupling, with an upper system box which can be placed onto the transport-box upper face, and with a lower system box which can be positioned underneath the transport-box lower face. The transport box has an access opening to the interior, which access opening is located on a vertically oriented transport-box peripheral face. The transport box has a cover structure which is attached to the wall structure and which closes the access opening in a closed position; and the cover structure is movable to an open position without changes to the coupling interface and/or without movement of the transport-box upper face and/or the transport-box lower face.

A tool caddy for organizing a plurality of tools on a cart includes a caddy body arranged for being supported on a utility cart. The caddy body has a cart-top portion above the cart and an overhang portion that overhangs the cart. A bin is supported on the overhang portion of the caddy body. Additionally, the caddy body supports a plurality of tool organizers that each have a plurality of tool holes for holding the tools. The caddy body defines a lower storage compartment for storing equipment below the tool organizers. One tool organizer is a moveable organizer that is moveable between a closed position in which the moveable organizer covers the top of the lower storage compartment and an open position in which the moveable organizer uncovers the top of the lower storage compartment. The tool caddy is releasably fastened to the cart with a quick-connect fastening system.

The present disclosure concerns a coupling mechanism for detachably attaching two or more utility modules to one another, utility assembles, mobile carriers and other attachable modules and articles.

The present disclosure concerns a coupling mechanism for detachably attaching two or more utility modules to one another, utility assembles, mobile carriers and other attachable modules and articles.

A tool storage case system includes a pair of storage cases that can be releasably connected to each other by a latch that extends rearwardly from an exterior side of a back wall of one of the cases no further than a pair of hinges of the case. The latch is located between the pair of hinges and is mounted to the back wall to pivot between a latched position and an unlatched position, with the latch extending rearwardly no further than the pair of hinges with the latch in the latched position.