TWM579436U - Hard disk fixing device with extractable structure - Google Patents

Abstract

The utility model provides a hard disk fixing device with an extracting structure for fixing (or disassembling) two carrier frames. The hard disk fixing device with the extracting structure mainly comprises a shell, a partition frame, two carrier frames and two The extraction module, a fixing member and a circuit board are formed. With the design of the plurality of extraction modules, the user can traverse the two fixing units installed in the plurality of extraction modules so that the two actuation units are separated from the fixed units, and only need to rotate the The actuating unit pulls the fixing units, and the carrying racks can be disengaged from the housing by the plurality of extracting modules, so that the user can replace the hard ones without using any hand tools. The purpose of the disc.

Description

Hard disk fixture with extraction structure

The present invention relates to a hard disk fixing device, and more particularly to a hard disk fixing device having an extraction structure.

With the popularity of high-definition movies and high-quality music, users are increasingly demanding to store data, and the number of hard disk devices installed in their servers will increase. Therefore, they will be in computer cases. A hard disk holder is internally provided, and the hard disk holder can increase or decrease the number of hard disk devices according to user requirements.

Please refer to FIG. 1 , which is a perspective view of a conventional removable hard disk holder. As shown in FIG. 1 , the conventional hard disk holder 1 ′ includes: a carrier 11 ′, two side plates 12 ′ and a cover 13 ′; wherein the side plates 12 ′ are disposed on the carrier 11 ′ The two sides of the side plate have a plurality of openings 121', and the cover plate 13' is disposed at one end of the side plates 12'. Thus, the hard disk can be locked to the side plates 12' by the fixing holes 121' of the side plates 12' for fixing the hard disk to the carrier 11'.

The above-mentioned conventional hard disk holder 1' has been widely used at present, however, the creator of the present invention found in practice that the conventional hard disk holder 1' has the following drawbacks: the installation of the conventional hard In the case of the disc holder 1', the hard disc needs to be fixed to the conventional hard disk holder 1' by a plurality of screws. In addition, when removing the hard disk, the hand tool is required to remove the screw to take out the hard disk, which not only increases the disassembly time, but also the hand tool is not easy to enter the casing, which makes the disassembly inconvenient.

Therefore, in light of the above, the creator of the case tried to study the new creation, and finally developed a new type of hard disk fixing device with an extraction structure.

The utility model provides a hard disk fixing device with an extracting structure for fixing (or disassembling) a carrier. The hard disk fixing device with the extracting structure mainly comprises a shell, a partition frame, two carrier frames and two The extraction module, a fixing member and a circuit board are formed. With the design of the plurality of extraction modules, the user can traverse the two fixing units installed in the plurality of extraction modules so that the two actuation units are separated from the fixed units, and only need to rotate the The actuating unit pulls the fixing units, and the carrying racks can be disengaged from the housing by the plurality of extracting modules, so that the user can replace the hard ones without using any hand tools. The purpose of the disc.

Therefore, in order to achieve the above object of the present invention, the creator of the present invention proposes a hard disk fixing device having an extraction structure, which includes:  A casing is composed of a top plate and two side plates; wherein the side plates are disposed on two sides of the top plate, and the side plates are provided with a plurality of sliding grooves, a partition, and a plurality of fittings unit;  a partitioning frame is disposed in the partitioning portion of the casing, so that the casing forms a first receiving space and a second receiving space;  The at least one carrier is configured to be received in the first accommodating space or the second accommodating space, and includes:  a fixed frame  The two sliding plates are disposed at two sides of the fixing frame for reciprocating sliding to the sliding slots; wherein a third receiving space is formed between the fixing frame and the two sliding plates for receiving a hard disk  At least one extraction module is disposed at the other end of the two skateboards and includes:  a fixing unit having a latching member and a latching member;  An actuating unit is disposed on the fixing unit and has two actuating portions and a fastening portion;  a fixing member disposed at one end of the housing for covering the partition frame;  a circuit board disposed at the other end of the housing and comprising:  An upper row of slots vertically disposed on an upper edge of the circuit board;  The lower row of slots is vertically disposed at the lower edge of the circuit board;  And applying a thrust to the extraction module to push the carrier back into the first accommodating space or the second accommodating space; at this time, the actuating portions of the actuating unit perform a positive And the engaging portion is engaged with the engaging portions, and the engaging portion of the actuating unit is fastened to the engaging member, so that the bearing is engaged to the rotating member. The frame is fixed to the first accommodating space or the second accommodating space of the housing;  The engaging portion of the actuating unit is disengaged from the engaging member by a lateral thrust to the engaging member; and a pulling force is applied to the actuating unit. At this time, the actuating portions of the actuating unit perform a reverse rotational motion, and when the reverse rotational motion is performed, the actuating portions of the actuating unit are disengaged from the engaging portions, such that The carrier exits from the housing.  

In order to more clearly describe a hard disk fixing device having an extracting structure proposed by the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.

Please refer to FIG. 2, FIG. 3 and FIG. 4, wherein FIG. 2 is a perspective view of the hard disk fixing device with the extraction structure of the present invention, and FIG. 3 is a first exploded view of the hard disk fixing device with the extraction structure of the present invention. Figure 4 is a second exploded view of the novel hard disk fixture having the extraction structure. As shown in FIG. 2, FIG. 3 and FIG. 4, the hard disk fixing device 1 of the present invention has a casing 11 , a partition 12 , a first carrier 13 a , and a second carrier 13 b . A first extraction module 14a, a second extraction module 14b, a fixing member 15 and a circuit board 16, wherein the housing 11 has a top plate 111 and two side plates 112. Further, the side plates 112 are formed on the side of the top plate 111, and the side plates 112 are formed with a plurality of sliding grooves 1121, a partitioning portion 1122, and a plurality of fitting portions 1123.

The partitioning frame 12 is disposed in the partitioning portion 1122 of the housing 11 for forming a first accommodating space and a second accommodating space, and the partitioning frame 12 is attached. A plurality of first heat dissipation holes 121 are formed. In addition, the first carrier 13a can be received in the first accommodating space or the second accommodating space, and includes: a first fixing frame 131a and two first sliding plates 132a; wherein the first sliding plate 132a One end is disposed on the two sides of the first fixing frame 131a for reciprocating sliding to the sliding slots 1121, and a third receiving space is formed between the first fixing frame 131a and the two first sliding plates 132a. For accommodating a first hard disk. Further, the second carrier 13b is configured to be received in the first accommodating space or the second accommodating space, and includes: a second fixing frame 131b and two second sliding plates 132b; wherein the two One end of the second sliding plate 132b is disposed on two sides of the second fixing frame 131b for reciprocating sliding to the sliding slots 1121, and a second portion is formed between the second fixing frame 131b and the two second sliding plates 132b. Four accommodating spaces for accommodating a second hard disk.

Further, in order to increase the heat dissipation effect of the first carrier 13a and the second carrier 13b, the two first sliding plates 132a further include: a plurality of second heat dissipation holes 1321a formed on the two first sliding plates 132a. on. Moreover, the two second sliding plates 132b further include: a plurality of third heat dissipation holes 1321b formed on the two second sliding plates 132b. In addition, in order to fix the first hard disk and the second hard disk to the first carrier 13a and the second carrier 13b, one of the two first sliders 132a of the first carrier 13a The first sliding plate 132a further includes a first sliding rail 1322a and a plurality of first fixing holes 1323a. The first sliding rail 1322a is disposed on the first sliding plate 132a, and the first fixing holes 1323a are formed. The first sliding plate 132a is fixed on the first sliding plate 132a. Similarly, the second sliding plate 132b of the two second sliding blocks 132b of the second carrier 13b further includes: a second sliding rail 1322b and a plurality of second fixing holes 1323b; wherein the second sliding rail 1322b The second fixing holes 1323b are formed on the second sliding plate 132b for fixing the hard disks to the second sliding plate 132b.

Please refer to FIG. 3, FIG. 4, FIG. 5A and FIG. 5B. FIG. 5A is a first perspective view of the first extraction module of the present invention, and FIG. 5B is a second perspective view of the first extraction module of the present invention. As shown in FIG. 3, FIG. 4, FIG. 5A and FIG. 5B, the first extraction module 14a of the present invention is disposed at the other end of the two first slides 132a, and includes: a first fixing unit 141a and a first An action unit 142a; wherein the first fixing unit 141a includes: a first mounting body 1410a, a first latching member 1411a, a first latching member 1412a, a first picking handle 1413a, and a plurality of A mounting portion 1414a, a first slider 1415a, a first telescopic stop portion 1416a, and two first stoppers 1417a.

The first latching member 1411a is disposed on the first mounting body 1410a, and the first latching member 1412a is disposed on the first mounting body 1410a and adjacent to the first latching The piece 1411a, and the first extraction handle 1413a is formed on the first installation body 1410a. Further, the first mounting portion 1414a is formed on the first mounting body 1410a. Thus, the first mounting body 1410a is fixed to the two first through the first mounting portions 1414a. On the skateboard 132a. In particular, the first slider 1415a is disposed on the first mounting body 1410a for sliding on the first rail 1322a, and the first telescopic blocking portion 1416a is disposed in the first loading One side of the main body 1410a is disposed on the other side of the first mounting body 1410a.

In the present invention, the first actuating unit 142a includes a first actuating body 1420a, two first actuating portions 1421a, a first engaging portion 1422a, a first pulling portion 1423a, and a first rotating portion 1424a. The first actuating body 1420a is disposed on the first mounting body 1410a, the first actuating portion 1421a is disposed at one end of the first actuating body 1420a, and the first engaging portion 1422a is The other end of the first actuation body 1420a is disposed. Further, the first pulling portion 1423a is disposed on the first actuating body 1420a for moving the first actuating body 1420a, and the first rotating portion 1424a is formed on the first actuating body 1420a. Upper to rotate the first actuation body 1420a.

Please refer to FIG. 3, FIG. 4, FIG. 6A and FIG. 6B. FIG. 6A is a first perspective view of the second extraction module of the present invention, and FIG. 6B is a second perspective view of the second extraction module of the present invention. As shown in FIG. 3, FIG. 4, FIG. 6A and FIG. 6B, the second extraction module 14b of the present invention is disposed at the other end of the two second slides 132b, and includes: a second fixing unit 141b and a first The second actuating unit 142b includes a second mounting body 1410b, a second latching member 1411b, a second latching member 1412b, a second extracting handle 1413b, and a plurality of The second mounting portion 1414b, a second slider 1415b, a second telescopic stop portion 1416b, and two second stoppers 1417b.

In the above, the second latching member 1411b is disposed on the second mounting body 1410b, and the second latching member 1412b is disposed on the second mounting body 1410b and adjacent to the second latching The piece 1411b, and the second extraction handle 1413b is formed on the second mounting body 1410b. Further, the second mounting portions 1414b are formed on the second mounting body 1410b. Thus, the second mounting body 1410b is fixed to the two second through the second mounting portions 1414b. On the skateboard 132b. In particular, the second slider 1415b is disposed on the second mounting body 1410b for sliding on the second rail 1322b, and the second telescopic blocking portion 1416b is disposed on the second housing. One side of the main body 1410b is disposed on the other side of the second mounting body 1410b.

In the present invention, the second actuating unit 142b includes a second actuating body 1420b, two second actuating portions 1421b, a second engaging portion 1422b, a second pulling portion 1423b, and a second rotating portion. 1424b, wherein the second actuating body 1420b is disposed on the second mounting body 1410b, the second actuating portion 1421b is disposed at one end of the second actuating body 1420b, and the second engaging portion 1422b The other end of the second actuation body 1420b is disposed. Further, the second pulling portion 1423b is disposed on the second operating body 1420b for moving the second operating body 1420b, and the second rotating portion 1424b is formed on the second operating body 1420b. Upper to rotate the second actuation body 1420b.

Please refer to FIG. 3 and FIG. 4 . In the present invention, the fixing member 15 is disposed at one end of the housing 11 to cover the partition 12 . In addition, the circuit board 16 is disposed at the other end of the housing 11 and includes: an upper row of slots 161 and a lower row of slots 162; wherein the upper row of slots 161 are vertically disposed on the circuit board 16 The upper edge is for inserting the first hard disk, and the lower row of slots 162 is vertically disposed at a lower edge of the circuit board 16 for inserting the second hard disk.

The above-mentioned system has completely explained the structural composition of the hard disk fixing device 1 having the extraction structure of the present invention; next, the function and technical features of the hard disk fixing device 1 having the extraction structure of the present invention will be further described. Please refer to FIG. 5A, FIG. 5B, FIG. 6A, FIG. 6B and FIG. 7. FIG. 7 is a first schematic view of the hard disk fixing device with the extraction structure of the present invention. As shown in FIG. 5A, FIG. 5B, FIG. 6A, FIG. 6B and FIG. 7, when the first engaging member 1412a of the first extraction module 14a is latched, a first rotational force is applied to the first plug The locking member 1411a, the contact end of the first latching member 1411a abuts against the first engaging member 1412a of the first extraction module 14a, so that the first engaging member 1412a cannot be pushed. Similarly, when the second engaging member 1412b of the second extraction module 14b is latched, the contact end of the second latching member 1411b is applied by applying a rotational force to the second latching member 1411b. The second engaging member 1412b of the second extraction module 14b can be prevented from being pushed by the second engaging member 1412b.

Please refer to FIG. 4 , FIG. 6A , FIG. 6B , FIG. 8 and FIG. 9 , wherein FIG. 8 is a second schematic diagram of the hard disk fixing device with the extracting structure of the present invention, and FIG. 9 is a drawing structure using the present invention. The third schematic of the hard disk fixture. As shown in FIG. 4, FIG. 6A, FIG. 6B, FIG. 8 and FIG. 9, when the second carrier 13b is pulled out from the housing 11, the transverse thrust is applied to the second of the second extraction module 14b. The engaging member 1412b is configured to release the second engaging portion 1422b of the second actuating unit 142b from the second engaging member 1412b; and simultaneously apply a pulling force to the second actuating unit 142b and the first The second actuating unit 1421b is configured to perform a reverse rotational motion, and the second actuating unit 142b drives the second actuating unit 142b when the reverse rotational motion is performed. The second telescopic stop portion 1416b performs a shortening movement, and a buffer space is formed between the second actuation portion 1421b and the fitting portions 1123 for performing the shortening movement, so that the second actuation is performed. The portion 1421b is detached from the fitting portions 1123, and the second actuation portion 1421b of the second actuation unit 142b is disengaged from the fitting portions 1123 such that the second carrier 13b is from the housing 11. drop out.

In the above, when the first carrier 13a is pulled out from the housing 11, the first engaging member 1412a of the first extraction module 14a is used to make the first actuation unit 142a The first engaging portion 1422a is disengaged from the first engaging member 1412a; at the same time, a pulling force is applied to the first actuating unit 142a and the first extracting handle 1413a. At this time, the first actuating unit 142a The first actuation unit 1421a performs a reverse rotation movement, and when the reverse rotation movement is performed, the first actuation unit 142a drives the first telescopic stop portion 1416a to perform a shortening movement, and When the shortening motion is performed, a buffer space is formed between the first actuation portion 1421a and the fitting portions 1123, so that the first actuation portions 1421a are detached from the fitting portions 1123. The first actuation portions 1421a of the actuation unit 142a are disengaged from the engagement portions 1123 such that the first carrier 13a is withdrawn from the housing 11.

In addition, when the second carrier 13b is pushed back to the housing 11, a thrust is applied to the second extraction module 14b to push the second carrier 13b back to the first housing space or the second In the accommodating space, the second telescopic blocking portion 1416b performs an extension movement, and the second telescopic blocking portion 1416b passes through one of the side plates 112 to generate an outward direction. The second actuating unit 142b acts on the second actuating unit 142b, so that the second actuating portions 1421b of the second actuating unit 142b perform a forward rotational motion, and when the forward rotational motion is performed, the second actuating portions The second latching unit 1411b, the second latching member 1412b, and the second actuating unit 142b are configured to pass through the second telescopic block. The second engaging portion 1422b of the second actuating unit 142b is fastened to the second engaging member 1412b. The second engaging portion 1422b of the second actuating unit 142b is fastened to the second engaging member 1412b. The second engaging portion 1422b of the second actuating unit 142b is fastened to the second engaging member 1412b. The second carrier 13b is fixed to the housing 11.

Similarly, when the first carrier 13a is pushed back to the housing 11, a thrust is applied to the first extraction module 14a to push the first carrier 13a back to the first housing space or In the second accommodating space, the first telescopic blocking portion 1416a performs an extension movement, and the first telescopic blocking portion 1416a passes through one of the side plates 112 to generate the extension movement. An outward thrust acts on the first actuating unit 142a, such that the first actuating portions 1421a of the first actuating unit 142a perform a forward rotational motion, and when the forward rotational motion is performed, the first The first latching member 1411a, the first latching member 1412a, and the first actuating unit 142a of the first fixing unit 141a pass through the first telescopic portion. The first blocking portion 1422a is exposed to the top plate 111 and the side plates 112, and the first engaging portion 1422a of the first actuating unit 142a is fastened to the first engaging portion. The piece 1412a is such that the first carrier 13a is fixed in the housing 11.

Thus, the above-mentioned system has completely and clearly explained the structure and function of the hard disk fixing device having the extracting structure of the present invention; through the above, we can know that the present invention has the following technical features and advantages:

The present invention provides a hard disk fixing device 1 having an extracting structure for fixing (or disassembling) two carriers (13a, 13b). The hard disk fixing device 1 having an extracting structure mainly comprises a casing 11 and a partition frame. 12. Two carrier frames (13a, 13b), two extraction modules (14a, 14b), a fixing member 15 and a circuit board 16. With the design of the plurality of extraction modules (14a, 14b), the user can traverse the two fixing units (141a, 141b) installed in the plurality of extraction modules (14a, 14b) such that two The actuating unit (142a, 142b) is disengaged from the fixed units (141a, 141b), and only needs to rotate the actuating units (142a, 142b) and pull the fixed units (141a, 141b), the The carrier (13a, 13b) can be disengaged from the housing 11 by the plurality of extraction modules (14a, 14b), so that the user can replace the hard disk without using any hand tools.

It is to be understood that the foregoing detailed description of the preferred embodiments of the present invention is not intended to limit the scope of the invention, Both should be included in the scope of the patent in this case.

<This new type>

1‧‧‧Hard disk fixture with extraction structure

11‧‧‧Shell

12‧‧‧Separator

15‧‧‧Fixed parts

16‧‧‧ boards

111‧‧‧ top board

112‧‧‧ side panels

121‧‧‧First vent

161‧‧‧Upper slot

162‧‧‧lower slots

1121‧‧ ‧ chute

1122‧‧‧Departure

1123‧‧‧Mate

13a‧‧‧First carrier

131a‧‧‧First holder

132a‧‧‧First skateboard

1321a‧‧‧second vent

1322a‧‧‧First slide rail

1323a‧‧‧First fixing hole

13b‧‧‧Second carrier

131b‧‧‧second mount

132b‧‧‧Second skateboard

1321b‧‧‧3rd vent

1322b‧‧‧Second rail

1323b‧‧‧Second fixing hole

14a‧‧‧First extraction module

141a‧‧‧first fixed unit

142a‧‧‧First actuating unit

1410a‧‧‧First installation subject

1411a‧‧‧First latch

1412a‧‧‧First card fitting

1413a‧‧‧First extraction handle

1414a‧‧‧First Installation Department

1415a‧‧‧First slider

1416a‧‧‧First telescopic stop

1417a‧‧‧First stop

1420a‧‧‧First activist

1421a‧‧‧First Acting Department

1422a‧‧ First buckle

1423a‧‧‧First Pulling Department

1424a‧‧‧First Rotation Department

14b‧‧‧Second extraction module

141b‧‧‧second fixed unit

142b‧‧‧Second actuating unit

1410b‧‧‧Second installation body

1411b‧‧‧Second latch

1412b‧‧‧Second snap-on parts

1413b‧‧‧Second extraction handle

1414b‧‧‧Second Installation Department

1415b‧‧‧Second slider

1416b‧‧‧Second telescopic stop

1417b‧‧‧Second stop

1420b‧‧‧Second activist

1421b‧‧‧Second Mobilization Department

1422b‧‧‧Second Fasting Department

1423b‧‧‧Second drawing department

1424b‧‧‧Second Rotating Department

<知知>

1'‧‧‧ Known hard disk holder

11’‧‧‧Hosting

12’‧‧‧ side panel

13’‧‧‧ Cover

121’‧‧‧Opening

Figure 1 is a perspective view of a conventional hard disk holder;  2 is a perspective view of a conventional hard disk fixing device having an extraction structure;  3 is a first exploded view of the hard disk fixing device with the extraction structure of the present invention;  4 is a second exploded view of the hard disk fixing device with the extraction structure of the present invention;  5A is a first perspective view of the first extraction module of the present invention;  5B is a second perspective view of the first extraction module of the present invention;  6A is a first perspective view of the second extraction module of the present invention;  6B is a second perspective view of the second extraction module of the present invention;  7 is a first schematic view of a hard disk fixing device having an extraction structure of the present invention;  Figure 8 is a second schematic view of a hard disk fixture having the extraction structure of the present invention;  Figure 9 is a third schematic view of a hard disk fixture having the extraction structure of the present invention.  

Claims (6)

A hard disk fixing device having an extracting structure, comprising:  A casing is composed of a top plate and two side plates; wherein the side plates are disposed on two sides of the top plate, and the side plates are provided with a plurality of sliding grooves, a partition portion and a plurality of fittings unit;  a partitioning frame is disposed in the partitioning portion of the casing, so that the casing forms a first receiving space and a second receiving space;  The at least one carrier is configured to be received in the first accommodating space or the second accommodating space, and includes:  a fixed frame  The two sliding plates are disposed at two sides of the fixing frame for reciprocating sliding to the sliding slots; wherein a third receiving space is formed between the fixing frame and the two sliding plates for receiving a hard disk  At least one extraction module is disposed at the other end of the two skateboards and includes:  a fixing unit having a latching member and a latching member;  An actuating unit is disposed on the fixing unit and has two actuating portions and a fastening portion;  a fixing member disposed at one end of the housing for covering the partition frame;  a circuit board disposed at the other end of the housing and comprising:  An upper row of slots vertically disposed on an upper edge of the circuit board;  The lower row of slots is vertically disposed at the lower edge of the circuit board;  And applying a thrust to the extraction module to push the carrier back into the first accommodating space or the second accommodating space; at this time, the actuating portions of the actuating unit perform a positive And the engaging portion is engaged with the engaging portions, and the engaging portion of the actuating unit is fastened to the engaging member, so that the bearing is engaged to the rotating member. The frame is fixed to the first accommodating space or the second accommodating space of the housing;  The engaging portion of the actuating unit is disengaged from the engaging member by a lateral thrust to the engaging member; and a pulling force is applied to the actuating unit. At this time, the actuating portions of the actuating unit perform a reverse rotational motion, and when the reverse rotational motion is performed, the actuating portion of the actuating unit is disengaged from the engaging portions, such that the The carrier exits from the housing.   The hard disk fixing device with the extracting structure according to claim 1, wherein the partitioning frame further comprises: a plurality of first heat dissipation holes formed on the partitioning frame. The hard disk fixing device of claim 1, wherein the two sliding plates further comprise: a plurality of second heat dissipation holes formed on the two sliding plates. The hard disk fixing device with the extracting structure according to claim 1, wherein the fixing unit further comprises:  a mounting body; wherein the latching member is disposed on the mounting body, and the engaging member is disposed on the mounting body and adjacent to the latching member;  An extraction handle is formed on the installation body;  a plurality of mounting portions are formed on the mounting body; wherein the mounting main system is fixed to the two sliding plates through the mounting portions;  a slider is disposed on the mounting body for sliding on the slide rail;  a telescopic stop portion disposed on one side of the mounting body;  Two stoppers are formed on the other side of the installation body;  Wherein, when the mounting body is pushed back to the housing, the telescopic blocking portion performs an elongating movement, and when the elongating motion is performed, the telescopic blocking portion transmits through one of the side plates to generate an outward thrust. Acting on the actuating unit, the actuating portions are engaged with the fitting portion during the forward rotation movement; and at the same time, the latching member, the engaging member and the actuating unit of the fixing unit pass through the telescopic type a stopper portion and the stoppers are exposed outside the top plate and the side plates;  Wherein, when the mounting body is pulled out from the housing, the actuating portions perform the reverse rotational movement, and at the same time, the actuating unit drives the telescopic blocking portion to perform a shortening movement, and the shortening movement is performed A buffer space is formed between the actuating portions and the fitting portions for disengaging the actuating portions from the fitting portions.   The hard disk fixing device with the extracting structure according to the fourth aspect of the invention, wherein the one of the sliding plates further comprises:  a slide rail is disposed on the skateboard;  A plurality of fixing holes are formed on the sliding plate for fixing the hard disk to the sliding plate.   The hard disk fixing device having the extracting structure according to the fifth aspect of the invention, wherein the actuating unit further comprises:  An actuating body is disposed on the mounting body; wherein the actuating portions are disposed at one end of the actuating body; and the engaging portion is disposed at the other end of the actuating body;  a pulling portion disposed on the actuating body for moving the actuating body;  A rotating portion is formed on the actuating body for rotating the actuating body.