CN100419630C - Computer casing fixing mechanism - Google Patents

Abstract

The invention relates to a computer casing fixing mechanism, which is provided with an upper cover and a base, wherein the base is provided with a bottom plate, one side edge of the bottom plate extends upwards to form a guide rail, and a raised clamping hook is arranged on the guide rail; the upper cover is provided with a top plate and at least one side plate; the inner wall of the side plate is provided with a first elastic sheet and a second elastic sheet, the front end of the second elastic sheet is provided with an extended convex part which can be abutted against the guide rail to slide, and when the upper cover is arranged on the base, the convex part can slide over the clamping hook and can not slide in the opposite direction under the blocking of the clamping hook, so that the upper cover can not move relative to the base; the first elastic sheet is provided with a convex block, when the base and the upper cover are separated, the convex block can push the first elastic sheet and the second elastic sheet to bend, so that the convex part is separated from the guide rail and is not blocked by the clamping hook, and the upper cover can move relative to the base so as to be taken down.

Description

Computer Case Holding Mechanism

technical field

The invention relates to a computer casing, in particular to a computer casing holding mechanism for fixing an upper cover to a base.

Background technique

The casing of a commonly used horizontal computer host is composed of an upper cover and a base. The upper cover has a top plate and two side plates. 1. A front panel and a back panel, the upper cover is covered on the base, and the two side panels, the front panel and the back panel can just surround one circle, forming an accommodating space between the top panel and the bottom panel. The electronic components of the computer mainframe, such as the motherboard, central processing unit, hard disk drive and optical drive, are placed on the base, and then the electronic components are protected by the combination of the upper cover and the base.

The traditional way to fix the upper cover on the base is to set a number of screw holes on the back plate, and extend the edge of the side plate to form perforated lugs or extended wings. After placing the upper cover on the base, , the lug (or the extended wing) leans against the back plate, so that the through hole overlaps the screw hole, the screw is passed through the through hole and locked in the screw hole, and the upper cover is locked on the base with the screw.

In the method of fixing the upper cover with screws, tools must be used to lock or remove the screws to disassemble the upper cover, which makes the installation and disassembly of electronic components quite inconvenient. Although some manufacturers have changed the screw to a form that can be turned by hand, many screws still need to be turned during the disassembly process, and the disassembly procedure is still quite inconvenient. Therefore, an improved fixed latch structure has appeared, which can be directly operated by hand, and the latch structure can release the upper cover by a simple pressing action, such as US patents US5743606, US5918956, US5995363, US6074028 and US6367896 and other patent applications. Each of the above applications uses a combination of an elastic hook and a slot to combine the upper cover with the base. Referring to Fig. 1A and Fig. 1B, it is a partial cross-sectional view of the upper cover 1 and the base 2 in the known technology, wherein the inner side of the upper cover 1 is provided with an elastic hook 3, and the front end of the elastic hook 3 has a hook portion 3a, In addition, an opening 1a is defined on the upper cover 1, so that a protrusion 3b fixed on the elastic hook 3 is exposed through the opening 1a. A fixed plate 4 is provided on the inner side of the base 2, and a card slot 4a is provided on the fixed plate 4. As shown in FIG. When the upper cover 1 covers the base 2, the hook portion 3a can be inserted into the slot 4a, thereby fixing the upper cover 1 on the base 2, so that the upper cover 1 cannot be displaced toward the base 2, as shown in FIG. 1A . When the upper cover 1 is to be removed, push the protrusion 3b through the opening 1a from the outside of the upper cover 1, and use the protrusion 3b to push against the elastic hook 3 to bend the elastic hook 3. At this time, the hook portion 3a is The locking groove 4 a can be disengaged, so that the elastic hook 3 and the fixing plate 4 are separated from each other, as shown in FIG. 1B , so that the upper cover 1 can be removed from the base 2 . However, the aforementioned elastic hook 3 will be permanently deformed after being over-pressed or frequently operated several times, so that the elastic hook 3 cannot maintain the best latching state, and cannot be reliably latched into the latching groove 4a, thus Affect the fixing effect of the upper cover 1. And because the protrusion 3b is exposed through the opening 1a provided in the upper cover 1, if the elastic hook 3 is permanently deformed, the part of the protrusion 3b exposed from the opening 1a will be sunken inward, thereby affecting The overall appearance and the phenomenon of poor holding effect. Therefore, how to extend the service life of the elastic hook so that it does not cause material fatigue or permanent deformation early has become a technical issue to be solved.

Contents of the invention

In the prior art, the method of combining the upper cover with the base by means of elastic hooks may cause elastic fatigue due to frequent operations of the elastic hooks, resulting in poor holding effect. In view of the above problems, the main purpose of the present invention is to provide a computer case holding mechanism, which can reduce the bending frequency of the elastic holding element and limit the degree of its bending deformation, so as to prolong the service life of the elastic holding element , so that it can still maintain a good holding effect after a long period of frequent operation.

In order to achieve the above object, the present invention provides a computer case holding mechanism, which includes an upper cover, a base, a first elastic piece, a second elastic piece and a protrusion, wherein the base has a bottom plate, and one side of the bottom plate is upward A guide rail is extended, and a protruding hook is arranged on the guide rail. The hook has an inclined sliding side and a resisting side perpendicular to the guide rail. The upper cover has a top plate and at least one side plate, wherein the side plate corresponds to the side edge of the bottom plate; one end of the first elastic piece and the second elastic piece are fixed on the inner wall of the side plate, thereby forming a suspended state, and the second The other end of the two elastic pieces has an extended protrusion, and when the upper cover is placed on the base, the protrusion can slide against the guide rail. When the upper cover is pushed to fit tightly on the base, the convex part can slide along the sliding side of the hook and cross over the hook, and is blocked by the abutting side of the hook so that it cannot slide in the opposite direction. The upper cover cannot move relative to the base, and remains tightly closed and cannot be pushed away in the opposite direction. The protrusion is arranged on the first elastic piece, and can simultaneously push against the first elastic piece and the second elastic piece for bending. When it is necessary to separate the upper cover and the base, the protrusions can be used to push the first elastic piece and the second elastic piece to bend, so that the convex part of the second elastic piece is detached from the guide rail, and will not be blocked by the hook, so that the upper cover can be relatively Removed due to base movement.

According to the fixing mechanism of the computer case of the present invention, the side plate is provided with an exposed hole, and the protrusion is placed in the exposed hole.

According to the holding mechanism of the computer case of the present invention, the width of the protrusion is greater than the width of the first elastic piece.

According to the computer case holding mechanism of the present invention, the inner wall of the side plate is provided with a limit hook, which corresponds to one side of the second elastic piece, to limit the degree of bending of the second elastic piece, and to limit the displacement of the protrusion. itinerary.

According to the fixing mechanism of the computer case of the present invention, the second elastic piece has a U-shaped profile, and the first elastic piece is located in a U-shaped hollow area formed by the second elastic piece.

According to the fixing mechanism of the computer case of the present invention, the first elastic piece and the second elastic piece are integrally formed, one end of them is connected to each other and fixed on the inner wall of the side plate, and the other end is separated from each other and can swing freely.

According to the computer case holding mechanism of the present invention, at least one guide piece is provided on the inner wall of the side plate, and the guide piece is bent and forms a horizontally extending guide groove, which is matched with the guide rail to guide The upper cover slides in a straight line relative to the base.

According to the fixing mechanism of the computer case of the present invention, the side plate has a forward-bent resisting hook.

According to the computer case holding mechanism of the present invention, one side of the bottom plate has a wing, the wing is formed with a gap, and the side plate has a positioning column corresponding to the gap, and the positioning column can be inserted into the gap to prevent The upper cover moves relative to the base.

According to the computer case holding mechanism of the present invention, the side wings extend upward from the guide rail.

The beneficial technical effect of the present invention is that, through the combination of the first elastic piece and the second elastic piece, the first elastic piece is not bent during the combination process of the upper cover and the base, and the bending frequency and bending frequency of the first elastic piece are reduced. To a certain extent, delay the elastic fatigue and plastic deformation time of the first shrapnel, effectively improve the service life of the first shrapnel, and maintain the appearance of the upper cover.

The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient for any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the claims and the appended FIG. 1 , any person skilled in the art can easily understand the related objects and advantages of the present invention.

The above description of the content of the present invention and the following description of the implementation are used to demonstrate and explain the principles of the present invention, and provide further explanations for the claims of the present invention.

Description of drawings

Figure 1A and Figure 1B are partial cross-sectional views of the upper cover and the base in the known technology, which show the combination of the elastic hook and the slot;

Figure 2 and Figure 3 are perspective views showing the combination of the upper cover and the base and the separation of the upper cover and the base from different viewing angles in a preferred embodiment of the present invention;

4 and 5 are exploded perspective views from different viewing angles in a preferred embodiment of the present invention;

Fig. 6 is the application schematic diagram of the preferred embodiment of the present invention;

FIG. 7 and FIG. 8 are enlarged views of partial components of a preferred embodiment of the present invention;

Figure 9A to Figure 9C are schematic diagrams of the action of some components of the present invention, which show the process of combining the upper cover with the base; and

FIG. 10A to FIG. 10C are schematic diagrams of the action of some components of the present invention, which show the process of separating the upper cover from the base.

Wherein, the reference signs are explained as follows:

1 Upper cover 1a opening 2 Base 3 Elastic hook

3a hook part 3b bump 4 fixed plate 4a card slot

100 upper cover 110 top plate 120 side plate 121 exposed hole

122 limit hook 123 guide piece 123a guide groove 124 stop hook

125 positioning column 126 extended wing 127 embedded column 200 base

210 bottom plate 220 guide rail 250 flank 251 notch

221 Buckle Section 222 Buckle Hook 222a Sliding Side 222b Arresting Side

230 backplane 231 perforation 240 panel 310 first shrapnel

320 second shrapnel 321 convex part 322 card slot 330 bump

Detailed ways

In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the detailed description of the embodiments is as follows.

Referring to FIG. 2 to FIG. 6 , the computer case holding mechanism according to a preferred embodiment of the present invention includes an upper cover 100 and a base 200 .

The upper cover 100 includes a top plate 110 and two opposite side plates 120 , and each side plate 120 is provided with an exposed hole 121 . Wherein the inner wall of each side plate 120 is provided with a first elastic piece 310 and a second elastic piece 320, one end of the first elastic piece 310 and the second elastic piece 320 are fixed on the side plate 120, and their other ends can swing freely and hang on the exposed On hole 121. In this embodiment, the second elastic piece 320 has a U-shaped profile, and the first elastic piece 310 can just be located in the U-shaped hollow area formed by the second elastic piece 320 . The first elastic piece 310 and the second elastic piece 320 can be made separately, and then fixed on the side plate 120; , and the other ends are separated from each other and can swing freely. Referring to Fig. 7, a protrusion 330 is also provided on the first elastic piece 310, and the protrusion 330 is located in the exposed hole 121, the width of the protrusion 330 is greater than the width of the first elastic piece 310, and can cover the second elastic piece 320, thus When the protrusion 330 is pushed inward from the outside of the side plate 120 through the exposed hole 121, the protrusion 330 can be used to drive the first elastic piece 310 to bend toward the inner side of the upper cover 100, and at the same time lean against and push the second elastic piece 320 to bend inward. fold. In addition, the front end of the second elastic piece 320 has an extended protrusion 321 , and the protrusion 321 protrudes from a side of the second elastic piece 320 . A limit hook 122 is formed on the inner wall of the side plate 120, corresponding to one side of the second elastic piece 320, when the protrusion 330 pushes the first elastic piece 310 and the second elastic piece 320 to bend, the limit hook 122 can play a limiting role , to limit the bending degree of the second elastic piece 320 , so as to limit the displacement stroke of the protrusion 330 . In addition, the inner wall of each side plate 120 is respectively provided with a plurality of guide pieces 123, each guide piece 123 is bent, and a horizontally extending guide groove 123a is formed in the concave part, and the inner surface of the side plate 120 forms a forward direction. The bent anti-hook 124 corresponds to the front side of the base 200 , and a positioning post 125 protrudes from one side of the anti-hook 124 .

The base 200 includes a bottom plate 210, two guide rails 220, a back plate 230, a panel 240 and two side wings 250, wherein the two guide rails 220 respectively extend upward from the two sides of the bottom plate 210, and the back plate 230 is located on the side of the bottom plate 210 corresponding to the rear. The side wings 250 respectively extend upward from the front ends of the two guide rails 220 . The guide rail 220 corresponds to the guide groove 123a of the upper cover 100, and they match each other to guide the upper cover 100 to slide in a straight line relative to the base 200. The rear part of the guide rail 220 corresponding to the base 200 forms a locking segment 221. The locking section 221 forms a height difference with the main part of the guide rail 220. The front end of the second elastic piece 320 and the convex part 321 slide against the upper edge of the locking section 221. The locking section 221 is provided with a protruding hook 222. The hook 222 forms a sliding side 222 a inclined to the sliding path of the second elastic piece 320 , and a resisting side 222 b perpendicular to the sliding path of the second elastic piece 320 . When the upper cover 100 slides to the front side of the base, the front end of the second elastic piece 320 and the convex portion 321 slide on the locking section 221, and when the convex portion 321 contacts the hook 222, the sliding side 222a of the hook 222 can The guiding protrusion 321 passes over the hook 222 and at the same time causes the second elastic piece 320 to be elastically bent. When the protrusion 321 passes over the hook, the resisting side 222b of the hook 222 can prevent the protrusion 321 from sliding in the opposite direction, and has a locking effect on the upper cover 100 so that it cannot slide in the opposite direction. There are two protrusions 321 in FIG. 7 , and a slot 322 is formed between the two protrusions 321 , so that the hook 222 can be inserted into the slot 322 to produce a locking effect. However, in fact, only one convex portion 321 is required to abut against the abutment side 222b of the hook 222 to produce a locking effect, but in this embodiment, the design of two convex portions 321 is mainly to make the The second elastic piece 320 of 120 can be interchanged, so only one type of second elastic piece 320 can be installed on different side panels 120 at the same time. If the second elastic piece 320 has only one convex portion 321 and the position of the convex portion 321 is not corresponding to the central axis of the second elastic piece 320 , two types of second elastic pieces 320 must be prepared to be disposed on different side plates 120 .

Referring to FIG. 8, and referring to FIGS. 2 to 6 at the same time, the side wings 250 correspond to the front section of the side of the bottom plate 210, and are formed with a rearward gap 251, corresponding to the positioning column 125 of the upper cover 100, when the upper cover 100 accepts The guidance of the guide rail 220 slides, and after it is completely attached to the base 200, the stop hook 124 can be hooked against the side wing 250, and the positioning column 125 can be inserted into the gap 251 to prevent the upper cover 100 from continuing to slide forward, and at the same time The front section of the blocking upper cover 100 is moved upward. In addition, the rear side edge of the upper cover 100 is formed with an extension wing 126 or a lug, and the extension wing 126 is provided with a post 127 extending forward. The rear section of the upper cover 100 is prevented from moving upward, so as to prevent the upper cover 100 from being removed upward.

Referring to FIG. 9A to FIG. 9C , they are schematic views of the actions of the first elastic piece 310 and the second elastic piece 320 during the process of combining the upper cover 100 with the base 200 . The upper cover 100 is placed on the base 200 so that the rear side of the upper cover 100 slightly protrudes from the rear side of the base 200 , and the convex portion 321 of the second elastic piece 320 abuts against the engaging section 221 . Then push the upper cover 100 to move to the front side of the base 200, so that the upper cover 100 completely covers the base 200. When the upper cover 100 completely covers the base 200, the convex part 321 can be on the hook 222. Slide on the sliding side 222a, and make the second elastic piece 320 bend and deform inward, so that the convex part 321 goes over the hook 222 and reaches the stop side 222b. At this time, if the upper cover 100 is pushed in the opposite direction, the convex part 321 will Blocked by the abutting side 222 b of the hook 222 , it cannot move to the rear of the base 200 , thereby fixing the upper cover 100 .

Referring to FIGS. 10A to 10C , they are schematic views of the actions of the first elastic piece 310 and the second elastic piece 320 when the upper cover 100 is separated from the base 200 . When the upper cover 100 is to be removed, first press the projection 330 inwardly from the outside of the upper cover 100 through the exposed hole 121 with your fingers, so that the projection 330 moves inward and pushes against the first elastic piece 310 and the second elastic piece at the same time. 320 , bending and deforming the first elastic piece 310 and the second elastic piece 320 inside the upper cover 100 . While the second elastic piece 320 bends and deforms inside the upper cover 100, the convex portion 321 can be separated from the locking section 221. At this time, the convex portion 321 will not be blocked by the abutting side 222b of the hook 222, and can pass over the locking portion. The hook 222 prevents the second elastic piece 320 from being locked, so that the upper cover 100 can be pushed toward the rear of the base 200 to remove the upper cover 100 . After the projection 330 is released, the first elastic piece 310 and the second elastic piece 320 can be restored to their original shape, and the projection 330 returns to the unstressed position.

The maximum stroke that the protrusion 330 moves to the inner side of the upper cover 100 is determined by the inward bending degree of the first elastic piece 310 and the second elastic piece 320, and the limit hook 122 arranged on the inner surface of the side plate 120 can effectively limit the second The degree of bending of the elastic piece 320, that is to say, the stroke of the protrusion 330 will also be limited, so the degree of bending of the first elastic piece 310 and the second elastic piece 320 can be limited within the scope of its elastic deformation, and will not Permanent deformation occurs due to excessive bending.

In addition, during the process of fixing the upper cover 100 to the base 200, only the second elastic piece 320 will be deformed under the influence of the hook 222, and the first elastic piece 310 will not be bent during this process, and only the second elastic piece 320 will be deformed in the direction When the protruding block 330 is pushed inside, the first elastic piece 310 will be bent and deformed. Therefore, the elastic fatigue time of the first elastic piece 310 can be effectively delayed, so that when the first elastic piece 310 is not stressed, the protrusion 330 can be kept in the neutral position without force, viewed from the outside of the upper cover 100 At this time, there will be no situation where the protrusion 330 retracts and affects the appearance of the upper cover 100 .

Although the present invention is disclosed above with the foregoing embodiments, they are not intended to limit the present invention. Changes and modifications made without departing from the spirit and scope of the present invention all belong to the protection scope of the present invention. For the scope of protection defined by the present invention, please refer to the appended claims.

Claims (10)

1. A computer casing holding mechanism, comprising: A base has a bottom plate, and a guide rail extends upward from one side of the bottom plate, a protruding hook is provided on the guide rail, the hook has an inclined sliding side, and a stop side perpendicular to the guide rail ; An upper cover has a top plate and at least one side plate, wherein the side plate corresponds to the side edge of the bottom plate; A first elastic piece and a second elastic piece, one end of which is fixed on the inner wall of the side plate, and the other end of the second elastic piece has an extended convex portion, when the upper cover is placed on the base, the convex portion Sliding against the guide rail, the protrusion can slide along the sliding side of the hook and cross over the hook, and is blocked by the abutting side of the hook so that it cannot slide in the opposite direction, thereby making the upper the cover cannot move relative to the base; and A protrusion is provided on the first elastic piece, and can push against the first elastic piece and the second elastic piece to bend at the same time, so that the convex part of the second elastic piece is not blocked by the abutting side of the hook. The upper cover can be removed by moving relative to the base. 2. The computer case holding mechanism according to claim 1, wherein an exposed hole is provided on the side plate, and the protrusion is placed in the exposed hole. 3. The computer case retaining mechanism as claimed in claim 1, wherein the width of the protrusion is larger than the width of the first elastic piece. 4. The computer case holding mechanism according to claim 1, wherein the inner wall of the side plate is provided with a limit hook corresponding to one side of the second elastic piece to limit the bending of the second elastic piece degree, and limit the travel of the bump displacement. 5. The computer casing holding mechanism according to claim 1, wherein the second elastic piece has a U-shaped profile, and the first elastic piece is located in a U-shaped hollow area formed by the second elastic piece. 6. The computer casing holding mechanism according to claim 1, wherein the first elastic piece and the second elastic piece are integrally formed, one end of them is connected to and fixed on the inner wall of the side plate, and the other end is separated from each other and They can swing freely. 7. The computer case holding mechanism according to claim 1, wherein the inner walls of the side plates are respectively provided with at least one guide piece, the guide piece is bent and forms a horizontally extending guide groove, The guide groove and the guide rail match each other to guide the upper cover to slide in a straight line relative to the base. 8. The computer case retaining mechanism according to claim 1, wherein the side plate has a forward-bent resisting hook, and one side of the bottom plate has a side wing, and the resisting hook abuts against the The side wings prevent the upper cover from moving relative to the base. 9. The computer case holding mechanism according to claim 1, wherein one side of the bottom plate has a wing, the wing is formed with a notch, and the side plate has a positioning post corresponding to the notch, the The positioning post can be inserted into the notch to prevent the upper cover from moving relative to the base. 10. The computer case retaining mechanism as claimed in claim 9, wherein the side wings extend upward from the guide rail.

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