TWI673709B - Retractable hard disk drive bracket - Google Patents

Abstract

A telescopic hard disk tray includes a carrier frame and two side sliding mechanisms. Two side walls of the carrier frame are slidably connected to opposite two side frames of a chassis through the two side sliding mechanisms. The carrier frame can accommodate a hard disk. Each side sliding mechanism includes a chute and a guide post, and the chute is slidably connected to the guide post. In one of the side sliding mechanisms, the slide slot has a closed end, so that when the carrier slides out relative to the chassis, the guide post slides relative to the slide slot until the closed end stops the guide post. .

Description

Retractable hard drive bracket

The invention relates to a hard disk tray, in particular to a removable hard disk tray.

Generally, a server can store a large amount of information, and is usually configured with multiple hard disks for storage, and these hard disks are usually locked on the server's bracket by screws. Whether it is installing or removing a hard disk, the operator needs to use hand tools to perform it, so there is a problem of time consuming. When there are a large number of hard disks or frequent hard disk replacements, the aforementioned problems will become more serious. For this problem, the hard disks on the market have been designed with a removable structure. Generally speaking, it includes a hard disk box that houses the hard disk and a socket that can be quickly combined and separated with this hard disk box. The structure of the disc box and the seat can be quickly disassembled, which can save the operator time to replace the hard disk. However, it still takes time to install the hard disk in the box. If the installation is still implemented by screw locking, the design of this removable hard disk box is only to advance and delay the operation of locking and removing the screws; at this time The overall operation from installing the hard disk to the hard disk case, then combining the hard disk case to the holder, removing the hard disk case from the holder, and removing the hard disk from the hard disk case still requires considerable time. In addition, a hard disk box needs to be configured for each hard disk. Even after the replaced hard disk is detached from the hard disk box, the hard disk box still needs to be accommodated, resulting in an increase in the cost of accessories.

In view of the problems in the prior art, the present invention provides a retractable hard disk tray. The carrier is combined with the chassis by a sliding mechanism, and the hard disk can be directly placed on the carrier or detached from the carrier. The operation time of the disc replacement and the cost of spare parts are suppressed.

The retractable hard disk tray according to the present invention is disposed on a chassis. The rack includes a first side frame and a second side frame opposite to the first side frame, the first side frame and the second side. A storage space is defined between the shelves. The telescopic hard disk tray includes a carrier, a first side sliding mechanism and a second side sliding mechanism. The carrier frame includes a first side wall and a second side wall opposite to the first side wall. The carrier frame forms an accommodating space, and a hard disk can be accommodated in the accommodating space. The first side slide mechanism includes a first slide groove and a first guide post. The first slide groove extends along an extension direction and has a closed end in the extension direction. The first slide groove and the first guide The column is slidably connected, the first chute is disposed on the first side frame or the first side frame, and the first guide post is correspondingly disposed on the first side frame or the first side frame. The second sliding mechanism includes a second sliding groove and a second guide post. The second sliding groove is slidably connected to the second guide post. The second sliding groove is disposed on the second side wall or the second side frame. The second guide post is correspondingly disposed on the second side frame or the second side wall. Wherein, the carrier can slide into the storage space in a sliding direction through the first side sliding mechanism and the second side sliding mechanism. When the carrier slides from the storage space in one of the directions opposite to the sliding direction When sliding in the out direction, the first guide post slides relative to the first chute in the extension direction until the closed end stops the first guide post. Thereby, when the carrier slides out, the hard disk can be taken out from the carrier, and another replacement hard disk can be loaded into the carrier, and the carrier is slid into the storage space again to complete the hard disk. Dish replacement operation.

Compared with the prior art, the carrier of the retractable hard disk tray of the present invention also adopts a sliding mechanism to facilitate the movement of the carrier relative to the chassis, so there is still an advantage of reducing the operation time of hard disk replacement. In addition, the carrier is not completely separated from the chassis and is shared. There is no need to configure the carrier for each hard disk, so the cost of accessories can be suppressed.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

See Figures 1 to 5. According to an embodiment, a telescopic hard disk tray 1 is installed in a chassis 3, as shown in FIG. 1; wherein the chassis 3 includes a casing 30 and a first side frame 32 and a first side frame 32 disposed inside the casing 30. The outlines of the two side frames 34 and the casing 30 are shown in dotted lines to facilitate the display of the first side frame 32 and the second side frame 34 on the inner side thereof. A storage space 36 is defined between the first side frame 32 and the second side frame 34. In addition, in order to facilitate understanding of the connection relationship between the telescopic hard disk tray 1 and the first side frame 32 and the second side frame 34, the outlines of the first side frame 32 and the second side frame 34 are shown in FIG. 3 with dashed lines.

In this embodiment, a control circuit board 38 is disposed in the chassis 3. The control circuit board 38 is disposed behind the storage space 36 and corresponds to the telescopic hard disk tray 1 and includes a connector 382 and an indicator light 384. The telescopic hard disk tray 1 includes a carrier 12, a first side sliding mechanism 14 and a second side sliding mechanism 16. The carrier frame 12 is slidably connected to the first side frame 32 via the first side sliding mechanism 14 and is slidably connected to the second side frame 34 via the second side sliding mechanism 16, so that the carrier frame 12 is passed through the first side sliding mechanism 14 and the second side The sliding mechanism 16 can slide relative to the first side frame 32 and the second side frame 34 to enter and leave the storage space 36. For ease of illustration, only one telescopic hard disk tray 1 and a set of corresponding connectors 382 and indicator lights 384 are shown in the figure. However, in practice, the chassis 3 can be configured with multiple telescopic hard disk trays 1 and Multiple sets of corresponding connectors 382 and indicators 384.

Further, the carrier frame 12 includes a bottom plate 120, a rear wall 122, a first side wall 124, and a second side wall 126. The first side wall 124 and the second side wall 126 are oppositely connected to both sides of the bottom plate 120, and the rear wall 122 Connected to the other side of the bottom plate 120, a receiving space 128 is formed between the bottom plate 120, the rear wall 122, the first side wall 124 and the second side wall 126. A hard disk 4 can be received in the receiving space 128. In practice, the accommodating space 128 is the same size as the hard disk 4 so that the hard disk 4 can be positioned in the accommodating space 128 without additional fixing. The positioning effect of the connector 42 (shown in hidden lines) of the hard disk 4 (In FIG. 1) can be correctly connected with the connector 382 of the control circuit board 38. In addition, the carrier 12 may be, but is not limited to, integrally formed by a metal plate. In this embodiment, the first side sliding mechanism 14 includes a cover plate 142, a first slide groove 144 formed on the cover plate 142, and a first guide post 146 and a cover plate 142 that cooperate with the first slide groove 144. It is fixed to the outside of the first side wall 124. The first sliding groove 144 extends along an extending direction 144a (parallel to the front-back direction of the carrier 12) and has a closed end 144b in the extending direction 144a. The first guide post 146 is fixed to the first The side frame 32 is slidably connected to the first sliding groove 144. Thereby, the first side wall 124 can slide relative to the first side frame 32. In addition, in this embodiment, the telescopic hard disk tray 1 further includes a light guide strip 18, which is fixed between the cover plate 142 and the first side wall 124 in the front-rear direction of the carrier 12. The light guide strip 18 18 has a light entrance end 182 and a light exit end 184. The light entrance end 182 is located on the rear side of the carrier 12, and the light exit end 184 is located on the front side of the carrier 12. When the carrier 12 is located in the storage space 36, the light entrance end 182 is directly opposite the indicator 384, so that the light emitted by the indicator 384 can enter the light guide bar 18 through the light entrance end 182 and exit the light guide bar through the light exit end 184. 18, for example, the indicator light 384 glows when the hard disk 4 is accessed. In addition, the cover plate 142 can be implemented by a plastic injection part, which is easy to form a restraint structure on the cover plate 142 to fix the light guide strip 18 between the cover plate 142 and the first side wall 124.

In addition, in this embodiment, the second sliding mechanism 16 includes a second sliding groove 162 and a second guide post 164 that cooperates with the second sliding groove 162. The second sliding groove 162 is formed on the second side wall 126. The two sliding grooves 162 extend along an extending direction 162a (parallel to the front-rear direction of the carrier frame 12) and have a closed end 162b on the extending direction 162a. The second guide post 164 is fixed on the second side frame 34 and is in contact with the second sliding groove. 162 sliding connection. Thereby, the second side wall 126 can slide relative to the second side frame 34.

When the retractable hard disk tray 1 is used, the carrier 12 can slide into the storage space 36 through the first side sliding mechanism 14 and the second side sliding mechanism 16 in a sliding direction D1 (as shown in FIG. 2). When the carrier 12 slides from the storage space 36 in a sliding direction D2 opposite to the sliding in direction D1, the first guide post 146 slides relative to the first sliding groove 144 in the extending direction 144a until the closed end 144b stops the first The guide post 146, similarly, the second guide post 164 slides relative to the second slide groove 162 in the extending direction 162a until the closed end 162b stops the second guide post 164; at this time, the carrier 12 is located equivalent to that shown in FIG.示 的 位置。 Show location. Since the closed end 144b of the first chute 144 and the closed end 162b of the second chute 162 both have the sliding stop of the carrier 12 in the sliding direction D2, in practice, one of the closed end 144b and the closed end 162b can be selected. Implementation.

In addition, in this embodiment, the first sliding groove 144 is disposed on the first side wall 124, and the first guide post 146 is disposed on the first side frame 32. However, in practice, the first sliding groove 144 may be disposed on the first side The side frame 32 and the first guide post 146 are correspondingly arranged on the first side wall 124. The carrier frame 12 can also slide relative to the first side frame 32. Similarly, in this embodiment, the second sliding slot 162 is disposed on the second side wall 126, and the second guide post 164 is disposed on the second side frame 34. However, in practice, the second sliding slot 162 may be disposed on the second The two side frames 34 and the second guide post 164 are correspondingly changed to the second side wall 126. The carrier frame 12 can also slide relative to the second side frame 34.

In addition, in this embodiment, the first sliding groove 144 of the first side sliding mechanism 14 is formed on the cover plate 142, but in practice, the first sliding groove 144 may be directly formed on the first side wall 124, similarly to the first side wall 124. The two sliding grooves 162 are formed on the second side wall 126; at this time, the cover plate 142 can be omitted, and the light guide strip 18 is fixed in other ways, such as locking, gluing, or clamping on the first side wall 124. on. In addition, in this embodiment, although the first side sliding mechanism 14 and the second side sliding mechanism 16 have different structures and are not symmetrical, they can be implemented in the same and symmetrical manner in practice, and will not be described in detail.

In addition, please refer to FIG. 6. In this embodiment, the first guide post 146 of the first sliding mechanism 14 includes a fixing post 1462 and a swivel ring 1464. The fixing post 1462 is fixed on the first side frame 32, and rotates. The ring 1464 is rotatably sleeved on the fixing post 1462 and is disposed in the first chute 144. Among them, the swivel ring 1464 has a cylindrical portion and an edge portion extending obliquely outward from one end of the cylindrical portion. The fixed post 1462 has a post and a head connected to one end of the post. The post passes through the cylindrical portion of the swivel 1464 and is fixed to the first side frame 32 with the post (for example, locking, riveting, etc.), so that the head of the fixed post 1462 is located at the edge of the swivel 1464 relative to the The other side of the cylindrical portion is such that the swivel ring 1464 can be rotatably sleeved on the post of the fixed post 1462 between the head of the fixed post 1462 and the first side frame 32. The swivel ring 1464 slides in the first chute 144 with its cylindrical portion. The edge of the swivel ring 1464 is located between the cover plate 142 and the first side wall 124, which can effectively prevent the first side wall 124 from being perpendicular to the extending direction 144a. Directional away from the first side frame 32. Also, in practice, the swivel ring 1464 must rotate as the first guide post 146 and the first sliding groove 144 relatively slide, in other words, the swivel ring 1464 and the first sliding groove 144 realize the first guide post 146 by rotational friction. Relative sliding with the first chute 144.

In addition, in this embodiment, the sliding connection between the first side wall 124 and the first side frame 32 is achieved through two sets of first sliding grooves 144 and first guide posts 146. In practice, these two first sliding grooves 144 can be integrated into a single chute; in other words, there are two first guide posts 146 slidingly disposed in a single first chute 144 at the same time. In addition, in this embodiment, the first guide post 146 is mainly implemented with a cylindrical structure, and the implementation is not limited thereto. For example, the first guide post 146 can also be implemented as a square post whose structure matches the contour of the first chute 144. At this time, the square post itself has the effect of maintaining the first chute 144 horizontally sliding relative to the first guide post 146.

In addition, in this embodiment, the second guide post 164 of the second side sliding mechanism 16 is implemented by a cylinder riveted to the second side frame 34, which is not limited in practice. For example, the second guide post 164 is also implemented with the same structure as the first guide post 146; similarly, the first guide post 146 may also be implemented with the same structure as the second guide post 164.

Also, please refer to Figure 7. In this embodiment, the telescopic hard disk tray 1 further includes a spring arm 20. The spring arm 20 is disposed on the second side wall 126 and has a protruding portion 202 protruding toward the accommodation space 128. The protrusion 202 is matched with one of the lock holes 44 of the hard disk 4 so that when the hard disk 4 is correctly received in the accommodation space 128 and the carrier 12 slides into the storage space 36, the elastic arm 20 can be squeezed by the second side frame 34 In other words, if the hard disk 4 is not accommodated in the accommodating space 128 correctly, the elastic arm 20 will not be able to effectively lie flat against the second side wall 126, so that the second side frame 34 is stuck. The elastic arm 20 and the carrier 12 cannot slide completely into the storage space 36. Therefore, the protruding portion 202 of the elastic arm 20 has a fool-proof function to prevent the hard disk 4 from being incorrectly installed. In this embodiment, the elastic arm 20 is integrally formed into a cantilever structure, for example, implemented by a metal bar, and a post is fixed (eg, riveted) thereon as the protruding portion 202. In this embodiment, the spring arm 20 has a fixed end 204 and a free end 206. The fixed end 204 is fixed on the second side wall 126. The free end 206 projects outward from the second side wall 126, and the protrusion 202 is located on the free end 206. . In addition, in this embodiment, the elastic arm 20 is fixed outside the second side wall 126 and is located between the second side wall 126 and the second side frame 34, which is not limited in practice. For example, the fixed end 204 is fixed to the first side wall 126. Inside the two side walls 126, the free end 206 still protrudes from the second side wall 126 (for example, through the through hole of the second side wall 126), so that when the carrier 12 slides into the storage space 36, the free end 206 can be received by the second side frame 34 Squeeze to make the protruding portion 202 enter the accommodating space 128. This structural configuration can still achieve the aforementioned foolproof function.

In addition, in this embodiment, the elastic arm 20 is implemented with an additional cantilever member, which is not limited in implementation. For example, the elastic arm 20 is directly formed by a part of the second side wall 126, that is, the elastic arm 20 is formed by bending and extending from the second side wall 126. In practice, the elastic arm 20 must be integrally formed with the carrier 12. As another example, the elastic arm 20 is implemented with an arcuate structure, one end of which is fixed on the second side wall 126 and the other end slides in contact with the second side wall 126. The protruding portion 202 is disposed at a middle portion of the arcuate structure and protrudes toward the accommodation space 128. This structure can also achieve the aforementioned foolproof function.

In addition, in this embodiment, the retractable hard disk tray 1 further includes a handle 22 and a holding member 24. The handlebar 22 has a pivoting portion 222, a handheld portion 224, and a first protruding portion 226. The pivoting portion 222 is pivotally connected to the bottom plate 120 of the carrier 12, and the handheld portion 224 and the first protruding portion 226 are connected to the pivotal portion. The portion 222 is located on opposite sides of the pivoting portion 222. The holding member 24 is disposed on the bottom plate 120 of the carrier 12. In practice, the handlebar 22 is realized by a plastic injection part. Please refer to FIG. 8, in which the first side frame 32 and the second side frame 34 are shown along a line X-X section in FIG. 7. When the carrier frame 12 slides toward the storage space 36 in the sliding-in direction D1, the handlebar 22 can be rotated toward the carrier frame 12 so that the hand-held portion 224 is locked on the holding member 24 and the first protruding portion 226 is locked on the second side frame 34 One positioning hole 342 allows the carrier 12 to be held in the storage space 36. In practice, during the process of turning the handlebar 22 toward the carrier 12, the first protruding portion 226 can be kept against the side wall of the positioning hole 342, so that the handlebar 22 can generate a leverage, and the first protruding portion 226 and the positioning The contact point of the hole 342 is a fulcrum. The user applies force to the hand-held portion 224, and the handle 22 pushes the carrier 12 with the pivoting portion 222 in the sliding direction D1; this also helps to slide the carrier 12 completely into the storage space 36. (In practice, the connector 42 of the hard disk 4 is connected to the connector 382 of the control circuit board 38).

In addition, in this embodiment, the holding member 24 includes a fixing portion 242, a hook portion 244, and an elastic portion 246. The fixing portion 242 is fixed to the bottom plate 120 of the carrier 12, and the hook portion 244 and the elastic portion 246 Connected to the fixing portion 242. When the holder 24 holds the hand-held portion 224, the hook portion 244 hooks one of the structural edges of the hand-held portion 224 and the elastic portion 246 is elastically compressed by the hand-held portion 224. When the hook portion 244 is removed from the edge of the structure, the rebound force generated by the compressed elastic portion 246 can push the handle 22 outward, which is convenient for the user to grasp the hand-held portion 224 so as to pull out the carrier 12 . In addition, in this embodiment, the holding member 24 includes an operation portion 248 connected to the hook portion 244. When the hook portion 244 hooks the handheld portion 224, the operation portion 248 can be operated (for example, the user moves the operation portion 248) to disengage the hook portion 244 from the handheld portion 224, so that the compressed elastic portion 246 pushes the handheld portion 224 So that the handle 22 is unscrewed from the carrier 12. In addition, in this embodiment, the holding member 24 is realized by a plastic injection member, which is not limited in practice. For example, the fixed portion 242, the hook portion 244, and the operation portion 248 are implemented by a single component (such as a plastic injection member), and the elastic portion 246 is implemented by a spring. One end of the spring is fixed on the fixed portion 242, which can also be It is compressed by the hand-held portion 224 to generate a rebound force.

In addition, please also refer to FIG. 9, wherein the first side frame 32 and the second side frame 34 are shown along the line X-X section in FIG. 7. In this embodiment, the handlebar 22 includes a second protruding portion 228, which is connected to the pivoting portion 222 relative to the handheld portion 224. When the carrier 12 is contained in the storage space 36, the operation portion 248 of the holder 24 can be operated to release the hand-held portion 224 from the hook portion 244 of the holder 24, so that the handle 22 can be rotated away from the carrier 12 The second protruding portion 228 pushes against one of the structural side edges 344 of the second side frame 34 so that the carrier frame 12 slides in the slide-out direction D2. The handle 22 generates a lever effect, and the second protruding portion 228 and the structural side edge The contact point of 344 is the fulcrum. The user applies force to the handheld portion 224, and the handlebar 22 pulls the carrier 12 with the pivoting portion 222 in the sliding direction D2 (in practice, it includes the connector 42 and the control of the hard disk 4). The connector 382 of the circuit board 38 is separated).

As explained previously, in the retractable hard disk tray 1 shown in this embodiment, the carrier 12 can slide relative to the chassis 3 through the first side sliding mechanism 14 and the second side sliding mechanism 16. In principle, the user only needs to set The hard disk 4 is placed in the accommodating space 128 of the carrier 12, and the carrier 12 is slid toward the storage space 36 of the chassis 3 in the sliding direction D1, and the handle 22 is operated so that the carrier 12 can fully enter the storage space 36. The connector 42 of the hard disk 4 is connected to the connector of the control circuit board 38. If the hard disk 4 is not placed in the accommodating space 128 of the carrier 12 in the correct direction, then through the foolproof function of the spring arm 20, the carrier 12 cannot fully enter the storage space 36, which can avoid the hard disk 4 The connector 42 or the connector of the control circuit board 38 is damaged by an unexpected impact. When the hard disk 4 on the carrier 12 needs to be removed, the user can separate the holding member 24 from the handle 22 and operate the handle 22 to slide the carrier 12 out of the storage space 36 in the sliding out direction D2. Then, the user can directly remove the hard disk 4 from the carrier 12 without removing the hard disk 4 from the carrier 12 without additional tools. After that, the user can put another hard disk in the accommodating space 128 of the carrier 12 to realize the hard disk replacement operation. Therefore, the original hard disk 4 and subsequent hard disks do not need to be equipped with a separate hard disk frame or hard disk box, which can suppress the problem of increasing the cost of accessories in the prior art. In addition, in the telescopic hard disk tray 1 shown in this embodiment, no matter whether the carrier 12 is slid into or out of the storage space 36, the handlebar 22 can generate a leverage, providing users with labor-saving operations. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.

 1  Retractable hard drive bracket  12  Carrier  120  Floor  122  Back wall  124  First side wall  126  Second side wall  128  Accommodation space  14  First side sliding mechanism  142  Cover  144  First chute  144a  Direction of extension  144b  Closed end  146  First guide post  1462  Fixed column  1464  Swivel  16  Second side slide mechanism  162  Second chute  162a  Direction of extension  162b  Closed end  164  Second guide post  18  Light guide  182  Entrance end  184  Light end  20  Spring arm  202  Protrusion  204  Fixed end  206  Free end  twenty two  Handle  222  Pivot  224  Handheld  226  First protrusion  228  Second protrusion  twenty four  Card holder  242  Fixed part  244  Card hook  246  Elastic part  248  Operation Department  3  Case  30  Shell  32  First side frame  34  Second side frame  342  Positioning hole  344  Structural side  36  Storage space  38  Control circuit board  382  Connector  384  Indicator light  4  Hard drive  42  Connector  44  Keyhole  D1  Slide in direction  D2  Slide out direction

FIG. 1 is a schematic diagram of a case in which a retractable hard disk tray is installed according to an embodiment, wherein the retractable hard disk tray is in an expanded state. FIG. 2 is a schematic diagram of the retractable hard disk tray of FIG. 1 in which the carrier is located in the storage space of the chassis. FIG. 3 is an exploded view of the retractable hard disk tray of FIG. 1. FIG. 4 is a partial enlarged view of the first side sliding mechanism of the retractable hard disk tray in FIG. 1 blocking the first guide post at the first chute, wherein the outline of the carrier and the holder of the retractable hard disk tray is Dotted lines are shown and light guide bars are not shown. FIG. 5 is a partial enlarged view of the second sliding mechanism of the retractable hard disk tray in FIG. 1 at the second chute to stop the second guide post, wherein the outline of the carrier and the handle of the retractable hard disk tray are shown in dotted lines It is shown, but the second chute formed on the carrier is still shown by a solid line. FIG. 6 is a combined view of the first guide post and the first chute in FIG. 4. FIG. 7 is a partial schematic view of the retractable hard disk tray of FIG. 1 with respect to its spring arm being squeezed by a second side frame. 8 is a schematic bottom sectional view of the retractable hard disk tray sliding into the storage space of FIG. 1. FIG. 9 is a schematic bottom sectional view of the retractable hard disk tray sliding out of the storage space of FIG. 1.

Claims (10)

A retractable hard disk tray is provided on a chassis. The chassis includes a first side frame and a second side frame opposite to the first side frame. Between the first side frame and the second side frame To define a storage space, the retractable hard disk tray includes: a carrier frame including a first side wall and a second side wall opposite to the first side wall; the carrier frame forms an accommodation space, and a hard disk can accommodate Placed in the accommodating space; a first side slide mechanism comprising a first slide groove and a first guide post, the first slide groove extends along an extension direction and has a closed end in the extension direction, the A first chute is slidably connected to the first guide post. The first chute is provided on the first side wall or the first side frame. The first guide post is correspondingly provided on the first side frame or the first side wall. And a second side sliding mechanism, including a second chute and a second guide post, the second chute is slidably connected to the second guide post, and the second chute is disposed on the second side wall or the first guide post. Two side frames, and the second guide post is correspondingly disposed on the second side frame or the second side wall; The first side sliding mechanism and the second side sliding mechanism slide into the storage space in a sliding direction, and when the carrier slides from the storage space in a sliding direction opposite to the sliding direction, the first sliding mechanism A guide post slides relative to the first chute in the extending direction until the closed end stops the first guide post. The retractable hard disk tray according to claim 1, further comprising a light guide bar, wherein the first side sliding mechanism further includes a cover plate, the first slide groove is formed on the cover plate, and the cover plate is fixed. To the outside of the first side wall, the light guide bar is fixed between the cover plate and the first side wall in parallel with the first sliding groove, and the first guide post is disposed on the first side frame. The retractable hard disk tray according to claim 2, wherein the first guide post includes a fixed post and a swivel, the fixed post is fixed on the first side frame, and the swivel is rotatably sleeved on the The fixing post is disposed in the first chute. The retractable hard disk tray according to claim 1, wherein the second sliding groove is formed on the second side wall, and the second guide post is fixed on the second side frame. The retractable hard disk tray according to claim 4, further comprising a spring arm disposed on the second side wall, wherein the spring arm has a protruding portion protruding toward the accommodation space, and the protruding portion and the hard disk One of the keyholes is matched so that when the hard disk is correctly accommodated in the accommodating space and the carrier slides into the receiving space, the spring arm can be squeezed by the second side frame so that the protruding portion is inserted into the lock hole. The retractable hard disk tray according to claim 5, wherein the spring arm has a fixed end and a free end, the fixed end is fixed on the second side wall, and the free end protrudes outward from the second side wall, The protrusion is located at the free end. The retractable hard disk tray according to claim 1, further comprising a handle and a holding member, wherein the holding member is disposed on the carrier, and the handle has a pivoting portion, a holding portion and a A first protruding portion, the pivoting portion being pivotally connected to the supporting frame, the hand-held portion and the first protruding portion being connected to the pivoting portion and located on opposite sides of the pivoting portion, when the supporting frame is sliding with the sliding portion When sliding in the direction toward the storage space, the handle can be rotated toward the carrier so that the hand-held portion is clamped to the holder and the first protruding portion is snapped into a positioning hole of the second side frame, so that the The carrier is held in the storage space. The retractable hard disk tray according to claim 7, wherein the handlebar includes a second protruding portion, which is connected to the pivoting portion relative to the handheld portion, and when the carrier is accommodated in the storage space, The holding member can be operated to disengage the handheld portion from the holding member, so that the handlebar can be rotated away from the supporting frame so that the second protruding portion pushes against a structural side of the second side frame so that the supporting portion The rack slides in this slide-out direction. The retractable hard disk tray according to claim 7, wherein the holding member includes a fixing portion, a hook portion, and an elastic portion, and the fixing portion is fixed on the carrier, the hook portion and the elastic portion The part is connected to the fixing part. When the holding part holds the hand-held part, the hook part hooks the hand-held part and the elastic part is elastically compressed by the hand-held part. The retractable hard disk tray according to claim 7, wherein the holding member includes an operation portion connected to the hook portion, and when the hook portion holds the hand-held portion, the operation portion can be operated to Disengaging the hook portion from the hand-held portion, so that the compressed elastic portion pushes the hand-held portion to rotate the handle off the carrier.