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A computer enclosure includes a chassis (10), a resilient locking member (20), a cover (40), and a resilient member (30). The chassis comprises a bottom plate (12) and a side plate (16). The side plate defines a through opening (162) therein and has a flange (164) with slits (166) defined therein. T

A computer enclosure includes a chassis (10), a resilient locking member (20), a cover (40), and a resilient member (30). The chassis comprises a bottom plate (12) and a side plate (16). The side plate defines a through opening (162) therein and has a flange (164) with slits (166) defined therein. The locking member is secured on the bottom plate and abuts on the side plate. A locking tab (244) with a slanted surface (246) extends from the locking member. The cover has a plurality of hooks (42) formed thereon. A blocking tab (442) is formed on the cover. The resilient member is secured between the side plate of the chassis and the cover, and resiliently deforms when the blocking tab of the cover is engaged with the locking tab of the locking member to block the cover sliding in a second direction parallel to the side plate.

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What is claimed is: 1. A computer enclosure, comprising: a chassis comprising a pair of parallel side plates, each of the side plates having a flange, each of the flanges defining a slit therein; two resilient locking members respectively secured on the side plates, a locking tab with a slanted sur

What is claimed is: 1. A computer enclosure, comprising: a chassis comprising a pair of parallel side plates, each of the side plates having a flange, each of the flanges defining a slit therein; two resilient locking members respectively secured on the side plates, a locking tab with a slanted surface extending from each of the locking members; a cover having two hooks corresponding to the slits of the side plates, two blocking tabs formed on the cover, wherein when the cover is pressed to insert the hooks into the corresponding slits and resiliently deform the locking members with engagement between the blocking tabs and the slanted surfaces of the corresponding locking tabs, and slid in a first direction to engage the hooks into the corresponding slits of the side plates and to cause the blocking tabs slide across the locking tabs, the locking members rebound to cause the locking tab to block the blocking tabs to prevent the cover sliding reverse to the first direction; a resilient member secured between the cover and one of the flanges of the side plates, and resiliently deformed when the hooks are engaged into the corresponding slits of the side plates; and a pushing structure formed on the cover, the pushing structure abutting against the resilient member when the hooks are engaged into the corresponding slits of the side plates, and pushed by the resilient member to slide the cover reverse to the first direction when the blocking tabs are released from the locking tabs of the locking members. 2. The computer enclosure as described in claim 1, wherein the chassis comprises a bottom plate perpendicular to the side plates, the bottom plate defining two positioning holes therein respectively adjacent the side plates, each of the locking members comprising a mounting portion with a positioning tab extending therefrom for engaging into the corresponding positioning hole of the bottom plate. 3. The computer enclosure as described in claim 2, wherein two positioning pieces are formed on the bottom plate respectively adjacent the side plates, the mounting portion of each locking member defining a positioning hole therein for receiving the corresponding piece of the bottom plate. 4. The computer enclosure as described in claim 2, wherein each locking member comprises a bent portion capable of being resiliently deformed relative to the mounting portion, a protrusion being formed on the bent portion of each locking member, each side plate defining a through opening therein for receiving the protrusion of each locking member, the protrusion capable of being pressed in a direction perpendicular to the side plate to deform the bent portion inward to thereby disengage the locking tabs from the blocking tabs. 5. The computer enclosure as described in claim 4, wherein the locking tab extends from the bent portion of each locking member, the flange of each side plate defining a securing opening therein for the locking tab of each locking member extending therethrough. 6. The computer enclosure as described in claim 1, wherein a finger is formed on one of the cover and the flanges of the side plates for securing the resilient member thereon. 7. A computer enclosure, comprising: a chassis comprising a bottom plate and a side plate perpendicular to the bottom plate, the side plate defining a through opening therein and having a flange with a plurality of slits defined therein; a resilient locking member secured on the bottom plate and abutting on the side plate, a locking tab with a slanted surface extending from the locking member; a cover having a plurality of hooks formed thereon for engaging into the corresponding slits of the chassis to prevent the cover moving in a first direction perpendicular to the bottom plate of the chassis, a blocking tab formed on the cover; and a resilient member secured between the side plate of the chassis and the cover, the resilient member resiliently deforming when the blocking tab of the cover is engaged with the locking tab of the locking member to block the cover sliding in a second direction parallel to the side plate; wherein when the locking member is resiliently deformed by an external force exerted thereon via the through opening of the side plate to disengage the hooks and the locking tab respectively from the slits and the blocking tab, the resilient member rebounds to slide the cover in the second direction, the slanted surface of locking tab of the locking member abuts against the blocking tab to lift the cover in the first direction. 8. The computer enclosure as described in claim 7, wherein the bottom plate defines two positioning holes therein adjacent the side plate, the locking member comprising a mounting portion with two positioning tabs extending therefrom for engaging in the positioning holes of the bottom plate respectively. 9. The computer enclosure as described in claim 8, wherein a positioning piece is formed on the bottom plate adjacent the side plate, the mounting portion of the locking member defining a positioning hole therein for receiving the corresponding piece of the bottom plate. 10. The computer enclosure as described in claim 8, wherein the locking member comprises a bent portion capable of being resiliently deformed relative to the mounting portion, a protrusion being formed on the bent portion of the locking member and extending into the through opening of the side plate, the protrusion capable of being pressed in a direction perpendicular to the side plate to deform the bent portion inward to thereby disengage the locking tabs from the blocking tabs. 11. The computer enclosure as described in claim 10, wherein the locking tab extends from the bent portion of the locking member, the flange of the side plate defining a securing opening therein for the locking tab of the locking member extending therethrough. 12. The computer enclosure as described in claim 7, wherein a finger is formed on the flange of the side plate, for securing the resilient member thereon. 13. The computer enclosure as described in claim 12, wherein a cutout is defined in the cover, a pushing tab being formed on an edge of the cutout and urged by the resilient member to slide the cover in the second direction when the locking member is deformed to disengage from the locking tab of the locking member. 14. A computer enclosure comprising: a chassis comprising a bottom plate and a pair of side plates extending from opposite sides of the bottom plate, each of the side plates having a flange bent therefrom and parallel to the bottom plate, the flange defining a plurality of slits therein, one of the side plates defining a through opening; a locking member secured in the chassis adjacent to the one of the side plates, the locking member comprising a resilient bent portion having a locking structure formed at a distal end thereof; a cover slidably attached to the chassis in a first direction, the cover comprising a plurality of hooks formed at opposite sides thereof, a blocking tab formed on the cover and blocked by the locking tab in a second direction reverse to the first direction to thereby prevent the cover sliding away from the chassis in the second direction; and a resilient member attached between the chassis and the cover; wherein the bent portion is deformable inward by an external force via the through opening exerted thereon to move the locking structure inward to release the blocking tab such that the resilient member rebounds and pushes the cover to slide in the second direction to disengage the hooks from the respective pieces. 15. The computer enclosure as described in claim 14, wherein the locking structure has a slanted surface formed thereon, when the cover is attached to the chassis and pressed down, the blocking tab presses on the slanted surface to deform the bent portion inward and the cover is slid to cause the blocking tab slide over the locking structure to be blocked by the locking structure in the second direction. 16. The computer enclosure as described in claim 14, wherein one of the flanges forms a finger, the resilient member comprises a spring attached around the finger, and the spring is compressed between the flange and the cover.