CIRCUIT CARD LOCKING DEVICE AT A REAR COVER OF A COMPUTER
A circuit card locking device at a rear cover of a computer, is composed of a computer casing, a rear side of which is connected with a rear cover which is provided with a rectangular hole; a locking device, which tightly lock and fix a metallic piece of a circuit card at a periphery of the rectangular hole of the rear cover. Accordingly, the straight metallic piece at a rear end of the circuit card can be tightly locked on the rear cover without using screws, and can be quickly released from the rear cover.
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(a) Field of the Invention
The present invention relates to a circuit card locking device at a rear cover of a computer, and more particularly to a rear cover with a locking device which can lock and fix a metallic piece at a rear side of a circuit card.
(b) Description of the Prior Art
It is known that a conventional circuit card is always fixed on a rear cover of a computer casing with screws; therefore, when the circuit card is to be assembled on or disassembled from the rear cover, the screws should always be locked or unlocked, which is very time-consuming in operation.
SUMMARY OF THE INVENTIONThe primary object of present invention is to provide a circuit card locking at a rear cover of a computer, such that a straight metallic piece at a rear end of the circuit card can be tightly locked on the rear cover without using screws, and can be quickly released from the rear cover.
To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.
Referring to
The locking device 30 is composed of a seat 32, which is fixed on a board at a side of the rectangular hole 22, and an upper and lower parts of a body of which are provided with an upper ear 321 and a lower ear 3211 respectively, with the upper and lower ears 321, 322 being provided with an upper and lower through-holes 323, 324; a locking body 33, an upper and lower parts at a rear end of which are protruded with an upper projection end 331 and a lower projection end 322 respectively, with the upper and lower projection ends 331, 332 being loosely connected into the upper and lower through-holes 323, 324 respectively, and with an elastic locking piece 35 being extended outward from a bottom wall of the locking body 33 vertically, such that the locking body 33 can be rotated on the seat 32 using the upper and lower projection ends 331, 332 as axes.
Referring to
Referring to
The rectangular hole 22 is transfixed and locked by a metallic piece 82 at a side of a circuit card 80, and the straight metallic piece 82 is provided with an indentation 821 (as shown in
An upper end of the projection piece 24 is provided with a horizontal projection end 241 which is locked into the indentation 821, and the metallic piece 82 is tightly abutted on a side surface of the projection piece 24. In addition, the locking piece 35 can be abutted on a side surface of the metallic piece 82 to fix the metallic piece 82 on the projection piece 24 (as shown in
An exterior end of the locking body 33 is provided with a projection piece 37 for lifting. A rear side end of the seat 32 is provided with a projected wall body 320, and when the projection piece 37 is rotated to a rear dead point, it can be abutted on an inner wall of the projected wall body 320 (as shown in
A main wall of the locking body 33 is provided with a through-slot 335 (as shown in
A side edge of the upper ear 333 on the locking body 33 is provided with a vertical projection piece 338 (as shown in
Referring to
Referring to
Referring to
It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
Claims
1. A circuit card locking device at a rear cover of a computer, comprising a computer casing, a rear side of which is connected with a rear cover, with a wall of the rear cover being provided with a rectangular hole having an outward projection piece at an edge thereof. wherein a wall at another edge of the rectangular hole is provided with at least one long hole, a rear wall of the long hole is provided with a plurality of screw holes at different distances, a base plate of the seat is provided with a plurality of through-holes, screw holes, and lower screw holes, with the through-holes being riveted with a fixing pin respectively, and a bolt being screwed into both one of the screw holes on the base plate and the screw hole on the rear cover, such that the seat is fixed on the rear cover; and a locking device; the locking device including a seat, which is fixed on a board at a side of the rectangular hole, an upper and lower parts of a body of which are protruded respectively with an upper ear and a lower ear having an upper and lower through-holes; and a locking body, an-upper and lower parts of a rear end of which are protruded respectively with an upper projection end and a lower projection end which are loosely connected into the upper and lower through-holes respectively, with an elastic locking piece being extended outward from a bottom wall of the locking body vertically to press on a straight metallic piece of a circuit card, and with the locking body being able to be rotated on the seat using the upper and lower projection ends as axes.
2. The circuit card locking device at a rear cover of a computer according to claim 1, wherein an upper and lower edges of the locking body are provided with a horizontal upper ear and lower ear respectively, and the upper and lower ears are provided with positioning holes respectively; the lower ear of the seat being extended outward with a projection piece, with an upper surface of the projection piece being provided with a projected body; a positioning hole of the lower ear below the locking body providing locking and positioning functions for the projection body.
3. (canceled)
4. The circuit card locking device at a rear cover of a computer according to claim 1, wherein the rectangular hole is transfixed and locked by the straight metallic piece at a side of the circuit card, the straight metallic piece is provided with an indentation, an upper end of the projection piece is provided with a horizontal projection end, the projection end is locked into the indentation, and the metallic piece is abutted on a side surface of the projection piece; the locking piece being able to be abutted on a side surface of the metallic piece, to fix the metallic piece on the projection piece.
5. The circuit card locking device at a rear cover of a computer according to claim 2, wherein an exterior end of the locking body is provided with a liftable projection piece for lifting, a rear side end of the seat is provided with a projected wall body, and the projection piece can be abutted on an inner wall of the projected wall body after the projection piece is rotated, along with the locking body, to a rear dead point.
6. The circuit card locking device at a rear cover of a computer according to claim 1, wherein a main wall of the locking body is provided with a through-slot between the upper projection end and the lower projection end.
7. The circuit card locking device at a rear cover of a computer according to claim 1, wherein a side edge of the upper ear on the locking body is provided with a vertical projection piece.
Type: Application
Filed: Aug 9, 2006
Publication Date: Feb 14, 2008
Applicant:
Inventor: Chien-Fa Liang (Chung-Ho City)
Application Number: 11/501,020
International Classification: H01R 13/62 (20060101);