A portable tumbler comprises: a lower cup portion having an open top surface and an accommodation space formed therein; a lower connection portion coupled to the outer circumferential surface of the lower cup portion; an upper cup portion having open top and bottom surfaces and a prescribed height; an upper connection portion coupled to the outer circumferential surface of the upper cup portion and detachably coupled to the lower connection portion; and a cap coupled to the upper cup portion so as to cover the open top surface of the upper cup portion, wherein the lower connection portion and the upper connection portion may be coupled to each other so that the upper end of the lower cup portion and the lower end of the upper cup portion are in contact with each other. The portability of the portable tumbler when a user is carrying the portable tumbler can be improved by reducing the volume of the portable tumbler by pushing the stretchable lower and upper cup portions into the lower and upper connection portions, respectively.

A container set includes a cover, a base, the cover having a cover sealing member which is made of elastic material and protrudes from a cover peripheral edge of the cover to allow the cover to engage the base, and a first container received between the cover and the base and having a container edge to allow the first container to engage an inner surface of the cover. In addition, the inner surface of the base has a base groove to allow the cover sealing member to engage the base groove when the cover engages the base, wherein the container edge, the cover sealing member and the base groove constitute an interlocking structure. With this interlocking structure, the cover, the base and the container(s) located therebetween can form a tightly engaged container set.

The disclosure provides an adjustable device including plates and at least two adjustable modules connect with two adjacent of the plates. The adjustable module can stretch or shrink to change a distance between plates. The disclosure also provides an adjustable storage box including an upper cover and a lower cover. A storage space is formed by the upper cover and the lower cover and for the accommodating of the adjustable device. When the upper cover moves upward relative to the lower cover, the adjustable modules changes from a compression state to a stretch state and increase a distance between plates. Whereby, it is easy to pick and place object when a distance of two adjacent plates increases. The overall volume of the adjustable device is reduced when a distance of two adjacent plates decrease, thereby saving the working space.

A system of panels is provided for use as panels for walls, doors and storage containers, where these panels can be quickly and conveniently assembled to build a variety of modular storage containers or other structures. The panels can include straight panels, L-panels, door end panels, door landing panels, and swivel hinge panels.

A modular container has identically molded sides pieces connected together at corner joints and separately molded, identical top/bottom pieces. The corner joints are formed by snap fit engagement of flexible locking tabs of one side piece with pockets on another side piece when the molded side pieces are serially connected together. The flexible locking tabs are biased oppositely to one another in alternating manner and each tab engages with a shoulder in the corresponding pocket to enable a zipper effect with respect to the assembly and disassembly of the corner joints. Two top/bottom pieces are secured by relative rotation to the assembled side pieces to form the container. An extension ring or divider can be used between upper and lower sets of the assembled side pieces to enable different container sizes. The component parts are molded with a degree of flexibility that enhances the assembly/disassembly of the corner joints.

The invention is directed to a flexible and collapsible extended-length bulk bin. The bulk bin includes two molded plastic end pieces that are connected at each side to each by metal rails. A bottom panel and two side wall panels are also positioned between the two molded plastic end pieces.

A central support device for supporting plate-shaped objects and a storage apparatus for storing the plate-shaped objects are provided and adapted to regulate the heights of support elements and confine front ends thereof to a specified range. The central support device includes a casing, the support elements and height adjustment elements. Partition portions each having a dent portions are disposed at the casing and arranged in the heightwise direction, with a support element receiving slot defined between every two adjacent partition portions. Bottom sides of the dent portions slope in the heightwise direction. One end of each support element is connected to a bottom portion of a corresponding support element receiving slot. The height adjustment elements are disposed in the dent portions, respectively, and extend in the heightwise direction to form top ends for supporting the support elements. The storage apparatus also includes the central support device.

A modularized large-sized carrier includes at least two body modules, at least one hermetic seal component and a back board. The body modules are connected to each other peripherally and arranged in a depth direction. The hermetic seal component surrounds junctions of the body modules. The back board is disposed behind the last one of the body modules. The modularized large-sized carrier overcomes existing carrier size limitations otherwise caused by injection molding machines and continuously expands in the depth direction to thereby enlarge the airtight storage space of the carrier.

A central support device for supporting plate-shaped objects and a storage apparatus for storing the plate-shaped objects are provided and adapted to regulate the heights of support elements and confine front ends thereof to a specified range. The central support device includes a casing, the support elements and height adjustment elements. Partition portions each having a dent portions are disposed at the casing and arranged in the heightwise direction, with a support element receiving slot defined between every two adjacent partition portions. Bottom sides of the dent portions slope in the heightwise direction. One end of each support element is connected to a bottom portion of a corresponding support element receiving slot. The height adjustment elements are disposed in the dent portions, respectively, and extend in the heightwise direction to form top ends for supporting the support elements. The storage apparatus also includes the central support device.

A supporting shelf module includes a plurality of plastic supporting plates parallelly arranged in a height direction, and at least one pair of metal-made connectors located at two opposite ends of the supporting plates in the height direction. The connectors in one pair are correspondingly located in two horizontal planes perpendicular to the height direction. A wafer container is also disclosed, which includes a container body having at least two sets of the supporting shelf modules mounted therein, at least two top retaining brackets and at least two bottom retaining grooves provided on an inward side of a top and a bottom panel of the container body, respectively. The supporting shelf module has upper ends engaged with the top retaining brackets and lower ends engaged with and limited to the bottom retaining grooves in an engaging direction. Thus, the tolerance problem of the conventional wafer shelf can be solved.