In some implementations, a utility cart includes (a) a cargo hold having a cargo bed; (b) an assembly having a wheel arm having a first catch, a handle arm having a second catch, and a wheel; the wheel arm and handle arm coupled together at an angle and adjacent a pivot point; the wheel rotatably coupled to a distal end of the wheel arm; (c) a locking mechanism and a spring member, the locking mechanism having a first locking pin and a second locking pin; and (d) a plurality of bearing wheels disposed below a bottom surface of the cargo bed.

A truss structure is suitable for supporting lighting fixtures or other loads both in use and in transport. The truss has at least four elongated chords defining between said chords a first volume generally rectangular in cross-section. In transport, the truss is supported substantially above a surface by castered carriages bearing upon that surface, the carriages connected to said truss and in a first position producing an additional volume between said first volume and said surface. The carriages are attached to the truss so as to permit their rotation between said first position and at least a second position suitable for use while remaining connected to said truss.

A cooler includes a main body which includes a base, an upper rim, and one or more cooler walls extending therebetween. The cooler in some embodiments further includes a removable wheel assembly which includes two coaxial wheels, and an axle. The two coaxial wheels are removably securable to the axle. The cooler still further comprises a wheel fastening system configured to secure the removable wheel assembly to the base of the main body which includes a mount, a clip hingedly connected to the mount, and a locking clasp configured to lock the clip into a closed position to secure the wheel assembly. The cooler yet further comprises a lid including two wheel storage recesses, each being sized and dimensioned to receive and retain one of the coaxial wheel of the wheel assembly, and an axle storage recess sized and dimensioned to receive and retain the axle of the wheel assembly.

A golf trolley includes a main body that can retracted for storing or transportation and extended for use. The handle of the golf trolley, the wheels and wheel rods are removable. The size of the main body can be thus reduced to a size suitable for putting into a normal luggage for traveling by airplane.

A modular transporter comprises a universal chassis that can be linked with a variety of user modules. The universal chassis comprises a base that includes a quick connector and complex geometric surfaces on its sidewalls that function to secure a user module thereto. The quick connector allows for quick assembly/disassembly of a user module to and from the base of universal chassis. A plurality of suspension arms may be removeably connectable to the base such that modular transporter may be configured in a number of transport configurations. An ergonomic handle assembly may be coupled with the base for pushing, pulling, towing, etc. When disassembled, the modular transporter can be folded into a storage and/or quick fold mode and stored in a modular storage system. The modular storage system can be mounted to a trailer hitch by a linking mechanism for further transport.

An apparatus for transporting objects over soft and hard surfaces is disclosed. The apparatus includes a cart and a sled. The cart includes a base plate, toggles mounted at a top surface of the base plate, wheels mounted at a bottom surface of the base plate, and a cart handle mounted to the base plate. The sled includes eyelets and cables drawn through the eyelets. Further, the sled includes clips mounted at sidewalls of the sled. The sled is used for holding objects during transportation. The cables are used for pulling the sled over the soft surface for transporting the objects. Further, the sled holding the objects is placed over the base plate, and the toggles are mounted to the clips to mount the sled to the cart. The cart handle is used for pulling the cart over the hard surface for continued transporting of the objects.

A storage device has a container and a lid dolly that is usable as a lid to close the container and as a dolly to transport the container, wherein the lid dolly has casters configured to fit within the interior of the container when the lid dolly is closed on the container. A storage device kit has a container, a lid, a template, casters and fasteners. A retrofit kit for a storage device with a container and a lid has a template, casters and fasteners. The template may be installed as a reinforcement plate to structurally reinforce the lid for supporting the weight load of the container and its contents.

A multi-function stroller may comprise a lower chassis shell and an upper occupant shell connected by a quick release pivot joint that provides occupant accommodation that is secure and comfortable. In addition, the structural architecture is designed to allow safe adaptations to the axle configuration. Through flexible suspension arm mounting the suspension-hub-wheel/tire assembly can be quickly assembled/disassembled to provide alternative usage axle layouts. An ergonomic handle assembly may be coupled with the structure for pushing, pulling, towing, carrying, etc. When disassembled, the multi-function stroller can be folded into a compact storage mode. Thus, non-compromised performance, versatility, and usage functionality can be readily achieved and accomplished in a safe manner.

A releasable wheel assembly includes a bracket having multiple bosses, each boss including a hole that receives an axle. A pair of wheels are mounted on the axle and a pair of locking caps fit over respective ends of the axle, the locking caps each including a clip for engaging the axle at a circumferential groove to prevent movement of the locking cap along the axle. The wheel assembly can be mounted to a carry bag or other storage unit by mounting the bracket to the storage unit, where the wheels and axle can be easily removed from the bracket.

The present disclosure provides an easy assembling and disassembling wheel component, including a wheel, a rotation shaft and an engaging member, wherein a mounting hole is disposed on a center of the wheel, an accommodating groove is disposed at one end of the rotation shaft, the engaging member is movably engaged in the accommodating groove and is swingable between a first position and a second position. When the engaging member is in the first position, the engaging member and the rotation shaft can pass through the mounting hole of the wheel; when the engaging member is in the second position, the rotation shaft is connected with and locked to the wheel. The easy assembling and disassembling wheel component according to the present disclosure has advantages of simple structure, quick and convenient assembling and disassembling. And, the present disclosure also provides five kinds of easy assembling and disassembling wheel components.