Abstract: A framework structure for a computer main frame, comprises an outer frame and an inner frame in which the inner frame is combined with an inner portion of the outer frame. A rear end of a first plate is pivotally connected to a bottom of the inner frame, and a front end of the first plate is combined with a downside of a bottom of the inner frame and positioned on a downside of a first hole of the inner frame. A hard drive can be locked on an upside of the first plate. Bottom ends of a plurality of shafts are respectively combined with the inner frame so as to use upper ends of the shafts to combine with a motherboard to allow the hard drive to be positioned below the motherboard.

Abstract: A foldable host unit case for a computer with joint mechanisms includes four holding posts and the upper ends of the holding posts connect with a neighboring holding post with first foldable connecting rods and second foldable connecting rods respectively. The lower ends of the holding posts are joined to four ends of a cross connecting rod set such that the holding posts are capable of being extended to constitute a firm structure. Hence, the host unit case is capable of being extended conveniently and quickly and being folded conveniently to reduce the volume thereof during being packaged.

Abstract: A host unit case with upper and lower covers for a computer includes an upper cover and a lower cover and each of the covers is composed of two plate members pivotally connecting with each other. A first wall and a second wall each have the upper and lower ends thereof pivotally connecting with one of the plate members available for all parts being folded easily to reduce volume of the packaged host unit case. When the packaged host unit case is unfolded, the upper and lower ends of the first wall are joined to the first ends of the upper and lower covers respectively and the upper and lower ends of the second wall are joined to the second ends of the upper and lower covers respectively such that the host unit case is set up completely conveniently and quickly.

Abstract: A host unit case with foldable lateral walls for a computer provides a lateral wall, which is composed of a first plate member and a second plate member and the plate members pivotally connect with each other. The first and second plate members are pivotally connected with a front wall and the first lateral edge of a rear wall. The lower end of the rear wall pivotally connects with the rear end of a lower cover. All parts are capable of being folded easily to reduce volume of the packaged host unit case. When the packaged host unit case is unfolded, the front and rear walls are joined to the upper and lower covers respectively such that the host unit case is set up completely conveniently and quickly.

Abstract: A dually foldable host unit case for a computer includes a first plate member, an upper cover member, a lower cover, a front wall and a rear wall. The first plate member pivotally connects with the upper cover, the lower cover, the front wall and the rear wall respectively. The preceding parts are capable of being folded to allow the host unit case being reduced volume thereof while packaging and capable of being extended to allow the second lateral sides of the front and rear walls and the second lateral sides of the upper and lower covers are pivotally connected for setting up the host unit case conveniently and quickly.

Abstract: A stackable modular computer housing includes a rectangular frame, and top and bottom covers. The frame includes upright left and right side plates, a hollow connecting plate, two first slide portions extending respectively from top edges of the side plates, and two second sliding potions disposed below the side plates. The top cover includes a rectangular top plate and two third slide portions disposed at left and right edges of the top plate. The bottom cover includes a rectangular bottom plate, and two fourth slide portions disposed at left and right edges of the bottom plate. The third and fourth slide portions engage slidably and respectively the first and second slide portions, thereby enabling the top and bottom covers to slidably cover top and bottom sides of the frame. Two positioning plates cover front and rear openings of the frame, respectively.