TWI678139B - Case - Google Patents

Abstract

A cabinet includes a bracket, a first support bolt, a guide groove, a drawer, and a handle. The bracket has adjacent bracket bottom surfaces and bracket sides. The first support bolt is fixed on the side of the bracket. The guide groove is located on the side of the bracket and includes a guide open end and a guide closed end. The guide closed end is closer to the bottom surface of the bracket than the guide open end and is located between the guide open end and the first support bolt. The extraction cassette includes opposite first ends and second ends. The first end is rotatably provided on the first support bolt. The second end has an extraction port. The drawer has a drawer side. The side of the extraction box is located between the first end and the second end. The handle is rotatably disposed on the side of the drawer. The handle includes a grip portion and a fixing pin. The guide groove is located between the holding portion and the first support bolt. The fixing pin is located at the closed end of the guide.

Description

cabinet

The present invention relates to a casing, in particular to a guide groove having a guide groove, and the guide closed end of the guide groove is closer to the bottom of the bracket than the guide open end, and the guide closed end is located between the guide open end and the first support bolt. Chassis.

As an electronic device provided to multiple users, the server requires multiple large-sized hard disks to store a large amount of data. These large-sized hard disks are closely arranged in the server to effectively use the space inside the server. In order to facilitate the operator to replace these closely arranged large-size hard disks, these large-size hard disks are respectively detachably fixed on the bracket, and the brackets are respectively slidably disposed in the server case. In this way, the operator can slide out the tray from the server case and then exchange these large-sized hard disks. In addition, in order to increase the efficiency of operators in replacing these large-sized hard disks, manufacturers usually install a rotatable hard disk tray in the tray, and set large-sized hard disks in the hard disk tray. In this way, the operator can turn the hard disk tray to make the extraction port of the hard disk tray lift up, and the operator can slide the large-sized hard disk in the hard disk tray from the extraction port along the raised angle. Out.

However, for this method of setting a rotatable hard disk tray, the operator still needs to lift one end of the hard disk tray to rotate the hard disk tray. Because the total weight of the hard disk tray after accommodating these large hard disks is very heavy, although it is easier for the operator to slide the large hard disk out of the extraction port, it is more difficult for the operator to lift it. Lift and rotate the hard drive tray with the large hard drive.

The present invention is to provide a casing, so as to solve the problem that the hard disk tray of the server casing is not easy to rotate in the prior art.

The casing disclosed in one embodiment of the present invention includes a bracket, a first support bolt, a guide slot, a drawer, and a handle. The bracket has an adjacent bottom surface of the bracket and a side surface of the bracket. The first support bolt is fixed on the side of the bracket. The guide slot is located on the side of the bracket and includes a guide open end and a guide closed end. The guide closed end is closer to the bottom surface of the bracket than the guide open end and is located between the guide open end and the first support bolt. The extraction box includes a first end and a second end opposite to each other. The first end is rotatably provided on the first support bolt. The second end has an extraction port. The extraction box has a side of the extraction box. The side of the extraction box is located between the first end and the second end. The handle is rotatably disposed on the side of the drawer. The handle includes a holding portion and a fixing pin. The guide groove is located between the holding portion and the first support bolt. The fixing pin is located at the closed end of the guide.

According to the casing disclosed in the above embodiment, the guide closed end is closer to the bottom surface of the bracket than the guide open end and is located between the guide open end and the first support bolt, and the fixing pin is located in the guide closed end. When the operator lifts the extraction box through the handle, the fixing pin slides from the guide closed end to the guide opening end and the guide groove has a supporting force for the fixing pin. In this way, the operator can solve the problem that it is difficult to lift and rotate the extraction box in the prior art through the supporting force of the guide groove.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and provide further explanation of the scope of the patent application of the present invention.

An embodiment of the present invention will be described below. Please refer to FIG. 1 to FIG. 2 first. FIG. 1 is a schematic perspective view of a casing according to an embodiment of the present invention. FIG. 2 is a schematic enlarged front view of a part of the casing of FIG. 1. FIG.

The casing 10 of this embodiment is, for example, a server casing. The casing 10 includes a bracket 100, a first support bolt 200, a guide groove 300, a drawer 400, and a handle 500. The bracket 100 has a bracket bottom surface 110 and a bracket side surface 120 adjacent to each other. When the cabinet 10 is placed on a platform such as a desktop, the side of the bracket 100 facing the platform is the bottom surface 110 of the bracket. The first support bolt 200 is fixed to the side 120 of the bracket. The guide groove 300 is located on the side 120 of the bracket. The guide groove 300 includes a guide open end 310 and a guide closed end 320. The guide closed end 320 is closer to the bottom surface 110 of the bracket than the guide open end 310 and is located between the guide open end 310 and the first support bolt 200.

The extraction box 400 includes a first end 410 and a second end 420 opposite to each other. The first end 410 is rotatably disposed on the first support pin 200. Please refer to FIG. 3, which is a partially enlarged three-dimensional exploded view of the casing of FIG. 1. In this embodiment and some embodiments of the present invention, the extraction box 400 includes a first groove 430. The first groove 430 is located at the first end 410 of the extraction box 400. The first groove 430 includes a first mounting open end 431 and a first mounting closed end 432. When installing the extraction box 400, the operator first aligns the first mounting open end 431 of the first groove 430 with the first support bolt 200, and then slides the first groove 430 in the direction of the first mounting closed end 432 until One of the first inner closed sides 4321 of the first mounting closed end 432 contacts one of the first circumferential surfaces 210 of the first support bolt 200, so that the extraction box 400 is rotatably disposed through the first groove 430 with the first support bolt 200 as a rotation center Within the bracket 100. After that, the operator can rotate the extraction box 400 until the extraction box 400 is completely placed in the bracket 100. The purpose of providing the first groove 430 is to facilitate the operator to slide the extraction box 400 on the first support bolt 200 through the first groove 430 and rotate the extraction box 400 and place it in the bracket 100, but this is not the case. limit. In other embodiments, the extraction box can also be rotatably disposed in the bracket with the first support bolt as the rotation center through the assembly hole.

Please refer to Figures 1-2. In this embodiment, the second end 420 of the extraction box 400 has an extraction port 421. An operator can take an object (not shown) inside the extraction box 400 through the extraction port 421 of the second end 420, such as a hard disk. The extraction box 400 has a extraction box side 440. The extraction box side 440 is located between the first end 410 and the second end 420, and the extraction box side 440 faces the bracket side 120. The handle 500 is rotatably disposed on a side surface 440 of the extraction cassette with a rotation portion 510 as a rotation center. The handle 500 includes a holding portion 520 and a fixing pin 530. The guide groove 300 is located between the holding portion 520 and the first support bolt 200. The fixing pin 530 is located at the guide closed end 320. The operator can rotate the handle 500 by operating the grip 520 to drive the fixing pin 530 to slide from the guide closed end 320 to the guide open end 310. Since the guide closed end 320 is closer to the bottom bottom surface 110 of the bracket than the guide open end 310 and is located between the guide open end 310 and the first support bolt 200, when the operator lifts the extraction box through the holding portion 520 of the operation handle 500 At 400, the fixing pin 530 slides from the guide closed end 320 to the guide open end 310 and the guide groove 300 has a supporting force for the fixing pin 530. In this way, the operator can use the supporting force of the guide groove 300 to achieve the effect of rotating the extraction box 400 with less effort than the prior art. After the operator rotates the extraction box 400 through the handle 500, the extraction box 400 will rotate relative to the bracket 100 in the direction D of the second end 420 away from the bottom surface 110 of the bracket.

Please refer to FIG. 2 and FIG. 4. FIG. 4 is a schematic enlarged front view of a portion of the extraction box and handle of the casing of FIG. 1 rotated relative to the bracket. In this embodiment and some embodiments of the present invention, the extraction box 400 has a first corner portion 450. The first corner portion 450 is, for example, a right angle or an acute angle, but is not limited thereto. In other embodiments, the extraction cassette may also have a rounded corner portion or a beveled corner portion. In this embodiment and some embodiments of the present invention, the first corner 450 is located at the first end 410 of the extraction box 400 and near a corner of the bottom surface 110 of the bracket. When the extraction box 400 rotates in the direction D on the first support pin 200, the first corner portion 450 moves along a corner arc path R1. The corner arc path R1 does not overlap the bracket bottom surface 110. In this way, when the extraction tray 400 is rotated in the direction D with respect to the tray 100, the extraction tray 400 does not interfere with the bottom surface 110 of the tray.

See Figures 4 to 5. 5 is a schematic front view of a guide groove of the casing of FIG. 1. In this embodiment and some embodiments of the present invention, the guide groove 300 has a first guide surface 330. The first guide surface 330 is located between the guide open end 310 and the guide closed end 320. The first guide surface 330 extends from the guide open end 310 to the guide closed end 320, and the first guide surface 330 is a continuous surface. That is, the radius of curvature of the first guide surface 330 has not changed greatly, so that the fixing pin 530 can smoothly slide from the guide closed end 320 to the guide open end 310, but it is not limited thereto. In other embodiments, the guide open end and the guide closed end may be connected by a plurality of planes, as long as the fixing pin can slide from the guide closed end to the guide open end.

The guiding groove 300 has a second guiding surface 340. The second guide surface 340 is located between the guide open end 310 and the guide closed end 320. The second guide surface 340 faces the first guide surface 330. In this embodiment and some embodiments of the present invention, the second guide surface 340 extends from the guide open end 310 to the guide closed end 320, and the second guide surface 340 is a continuous surface. That is, the curvature radius of the second guide surface 340 has not changed greatly, so that the fixing pin 530 can smoothly slide from the guide closed end 320 to the guide open end 310, but not limited thereto. In other embodiments, the guide open end and the guide closed end may be connected by a plurality of planes, as long as the fixing pin can slide from the guide closed end to the guide open end. In this embodiment and some embodiments of the present invention, the second guide surface 340 serves as a guide path for providing the fixing pin 530 so that the extraction box 400 and the handle 500 can smoothly rotate in the direction D relative to the bracket 100.

In this embodiment and some embodiments of the present invention, the width of the guide open end 310 of the guide groove 300 is greater than the width of the guide closed end 320. In this way, when the extraction box 400 is mounted on the bracket 100 together with the handle 500, the fixing pin 530 is easier to enter the guiding groove 300 from the guiding open end 310, but it is not limited thereto. In other embodiments, the width of the guide open end may also be equal to the width of the guide closed end, as long as the fixing pin can slide between the guide open end and the guide closed end along the first guide surface and the second guide surface. Just move.

See Figure 2. In this embodiment and some embodiments of the present invention, the extraction box 400 has a second corner portion 460. The second corner 460 is located at the second end 420 of the extraction box 400 and is close to a corner of the bottom surface 110 of the bracket. The bracket 100 has a bracket top edge 130. The bracket top edge 130 is located on one side of the bracket side 120 away from the bracket bottom surface 110. As shown in FIG. 4, when the extraction box 400 and the handle 500 are rotated in the direction D and the fixing pin 530 is located at the guide open end 310, the second end 420 of the extraction box 400 is higher than the top edge 130 of the bracket. That is, when the operator rotates the handle 500 in the direction D until the fixing pin 530 is located at the guide open end 310, the second corner portion 460 is farther away from the bottom surface 110 of the bracket than the top edge 130 of the bracket. In this way, the operator can smoothly take the objects inside the extraction box 400 from the extraction port 421 of the second end 420, but it is not limited thereto. In other embodiments, when the extraction box is rotated until the fixing pin is located at the guide opening end, the second corner portion may also be located between the top edge of the bracket and the bottom surface of the bracket, as long as the operator can smoothly remove the extraction port from the second end. Just grab the contents of the drawer.

Please refer to FIG. 1, FIG. 2 and FIG. 4. In this embodiment and some embodiments of the present invention, the casing 10 further includes a second support pin 600. The second support bolt 600 is fixed to the side 120 of the bracket. The fixing pin 530 is located between the first support pin 200 and the second support pin 600. The extraction box 400 includes a second groove 470. The second groove 470 is located at the second end 420 of the extraction box 400. The second groove 470 includes a second mounting open end 471 and a second mounting closed end 472. When the operator rotates the extraction box 400, the second mounting opening end 471 of the second groove 470 is first aligned with the second support bolt 600, and then the second groove 470 is slid toward the second mounting closed end 472 until A second inner side surface 4721 of one of the second mounting closed ends 472 contacts a second circumferential surface 610 of one of the second support pins 600, so that the extraction box 400 is disposed on the second support pin 600 through the second groove 470. In this way, the bracket 100 can share the weight of the extraction box 400 through the second support pin 600 to prevent the weight of the extraction box 400 from being carried by the first support pin 200 and the guide groove 300 only, but not limited thereto. In other embodiments, the casing may not be provided with the second support bolt, as long as the extraction box can be stably disposed on the bracket.

See Figure 6. FIG. 6 is a schematic perspective view of a casing according to another embodiment of the present invention. In the following, only the differences between another embodiment of the present invention and some of the foregoing embodiments will be described, and other similarities will be omitted. In this embodiment and some embodiments of the present invention, the casing 10 further includes a positioning mechanism 700. The positioning mechanism 700 is provided in the extraction box 400. The positioning mechanism 700 includes a positioning pin 710 and an elastic member 720. The elastic member 720 is, for example, a spring and is connected to the positioning bolt 710. The elastic member 720 has a released state and a compressed state. Please refer to FIGS. 7 to 8. FIG. 7 is an enlarged perspective view of the elastic member of the casing of FIG. 6 in a released state. FIG. 8 is an enlarged perspective view of the elastic member of the casing of FIG. 6 in a compressed state. When the elastic member 720 is in the released state, the positioning bolt 710 is pressed by the elastic member 720 to extend from the extraction box side 440 toward the bracket side 120 and protrude from the extraction box side 440. When the elastic member 720 receives an external force in the released state, the elastic member 720 moves in a direction away from the side surface 120 of the bracket and changes to a compressed state. The positioning bolt 710 will be retracted behind the extraction box side 440 as the elastic member 720 moves in a direction away from the side 120 of the bracket, but not limited thereto. In other embodiments, the positioning pin can also be operated by rotating the screw so that the positioning pin can protrude or retract from the side of the extraction box.

See Figure 6. In this embodiment and some embodiments of the present invention, the handle 500 has a first positioning hole 540. When the handle 500 is rotated on the side 440 of the extraction box, the first positioning hole 540 moves along a hole-shaped arc path R2. The positioning bolt 710 is located on the arc R2 of the hole position. As such, when the first positioning hole 540 rotates with the handle 500, the first positioning hole 540 can be aligned with the positioning bolt 710. See Figure 9. FIG. 9 is a perspective view of a part of the extraction box and the handle of the casing of FIG. 6 rotating with respect to the bracket. The operator raises the second end 420 through the handle 500 and rotates the drawer 400. When the extraction box 400 is rotated until the first positioning hole 540 is aligned with the positioning pin 710, the elastic member 720 changes from the compressed state to the released state and the positioning pin 710 is partially inserted into the first positioning hole 540. As a result, the extraction tray 400 cannot rotate relative to the handle 500. When the extraction box 400 is rotated toward the bottom surface 110 of the bracket due to gravity, the extraction box 400 is rotated together with the handle 500. However, the fixing pin 530 of the handle 500 will press against the first guide surface 330 of the guide groove 300, thereby restricting the extraction box 400 and the handle 500 from rotating toward the bottom surface 110 of the bracket due to gravity. When the extraction box 400 is fixed and does not rotate toward the bottom surface 110 of the bracket, the operator can release both hands and take the objects inside the extraction box 400 toward the extraction port 421 of the second end 420. In this embodiment and some embodiments of the present invention, the operator fixes the extraction cassette through the positioning mechanism, but it is not limited to this. In other embodiments, the second end of the extraction box can also be lifted by using a lever and the rotation of the extraction box toward the bottom surface of the bracket can be prevented, so that the operator can take the objects inside the extraction box.

See Figure 10. FIG. 10 is a partial perspective view of a casing according to another embodiment of the present invention. In the following, only the differences between another embodiment of the present invention and the foregoing partial embodiments will be described, and the remaining similarities will be omitted. In this embodiment and some embodiments of the present invention, the handle 500 has a second positioning hole 550. The distance from the second positioning hole 550 to the bracket bottom surface 110 is greater than the distance from the first positioning hole 540 to the bracket bottom surface 110. The elastic member 720 is in a released state and the positioning bolt 710 is partially inserted into the second positioning hole 550. That is, when the extraction box 400 and the handle 500 have not been relatively rotated relative to the bracket 100, the positioning bolt 710 can fix the extraction box 400 and the handle 500 so that the handle 500 does not rotate relative to the extraction box 400. In this way, the positioning bolt 710 can be used as a securing device to prevent the extraction box 400 and the handle 500 from rotating arbitrarily. After the operator only needs to change the elastic member 720 from the released state to the compressed state so that the positioning bolt 710 is not inserted into the second positioning hole 550 and retracted to the side 440 of the extraction box, the operator can rotate the handle 500 through the holding portion 520. When the operator rotates the handle 500 through the holding portion 520, the positioning bolt 710 abuts against the handle 500 and the elastic member 720 is maintained in a compressed state. When the operator continues to turn the handle 500 until the first positioning hole 540 is aligned with the positioning bolt 710, the positioning bolt 710 protrudes from the side 440 of the extraction box and is inserted into the first positioning hole 540 and the elastic member 720 changes back to the released state. In this way, the extraction box 400 and the handle 500 can be lifted to the state shown in FIG. 9. The purpose of providing the second positioning hole 550 is to ensure that the extraction box 400 and the handle 500 do not rotate relative to the bracket 100, but not limited thereto. In other embodiments, an abutment member can also be used to prevent the extraction box and the handle from rotating relative to the bracket.

According to the casing of the above embodiment, since the closed end of the guide is closer to the bottom surface of the bracket than the open end of the guide and is located between the open end of the guide and the first support bolt, when the operator lifts and extracts through the grip of the operating handle In the case, the fixing pin is slid from the closed guide end to the guide open end, and the guide groove has a supporting force for the fixing pin. In this way, the operator can use the supporting force of the guide slot to achieve the effect of rotating the extraction box with less effort than the prior art.

In some embodiments, the extraction cassette is also rotatably disposed in the bracket through the first groove with the first support pin as a rotation center. The operator can then rotate the tray until the tray is fully seated in the tray. The purpose of providing the first groove is to facilitate the operator to slide the extraction box on the first support bolt through the first groove, and place the extraction box in the bracket after rotating the extraction box.

In addition, in some embodiments, when the extraction box is rotated on the first support bolt, the corner arc path of the first corner movement does not overlap the bottom surface of the bracket. In this way, when the drawer is rotated in a direction relative to the bracket, the drawer does not interfere with the bottom surface of the bracket.

In some embodiments, the guide groove further has a first guide surface. The first guide surface extends from the guide open end to the guide closed end, and the first guide surface is a continuous surface. In this way, the fixing pin can smoothly slide from the closed guide end to the open guide end.

In some embodiments, the guide groove further has a second guide surface. The second guide surface extends from the guide open end to the guide closed end, and the second guide surface is a continuous surface. In this way, the fixing pin can smoothly slide from the closed guide end to the open guide end.

In addition, in some embodiments, the width of the guide open end of the guide groove is greater than the width of the guide closed end. In this way, when the extraction box is mounted on the bracket together with the handle, the fixing pin is easier to enter the guide groove from the guide opening end.

In addition, in some embodiments, when the operator turns the handle until the fixing pin is located at the guide opening end, the second end of the extraction box is higher than the top edge of the bracket. In this way, the operator can smoothly take the contents inside the extraction box from the extraction port on the second end.

In some embodiments, the casing further includes a second support bolt, so that the extraction box is disposed on the second support bolt through the second groove. In this way, the bracket can share the weight of the extraction box through the second support bolt, avoiding that the weight of the extraction box is only carried by the first support bolt and the guide groove.

In some embodiments, the casing further includes a positioning mechanism. When the elastic member is in a released state, the positioning bolt is pressed by the elastic member to extend from the side of the extraction box toward the side of the bracket and protrude from the side of the extraction box. When the elastic member receives an external force in the released state, the elastic member moves in a direction away from the side of the bracket and changes to a compressed state. The positioning bolt is retracted behind the side of the drawer as the elastic member moves together away from the side of the bracket.

In some embodiments, the handle further has a first positioning hole. When the handle is rotated on the side of the extraction box, the positioning bolt is located on the arc path of the hole position of the first positioning hole. In this way, when the first positioning hole rotates with the handle, the first positioning hole can be aligned with the positioning bolt. The operator lifts the second end through the handle and rotates the drawer. When the extraction box is rotated until the first positioning hole is aligned with the positioning bolt, the elastic member changes from the compressed state to the released state and the positioning bolt is partially inserted into the first positioning hole. . As a result, the drawer cannot rotate relative to the handle. When the drawer is turned toward the bottom of the bracket due to gravity, the drawer will rotate with the handle. However, the fixing pin of the handle will press against the first guide surface of the guide groove, thereby restricting the extraction box and the handle from rotating toward the bottom surface of the bracket due to gravity. When the extraction box is fixed and does not rotate toward the bottom surface of the bracket, the operator can release his hands and take the objects inside the extraction box to the extraction port on the second end.

In some embodiments, the handle further has a second positioning hole. The elastic member is in a released state and the positioning pin is partially inserted into the second positioning hole. In this way, the positioning bolt can be used as a securing device to prevent the extraction box and the handle from rotating arbitrarily. After the operator only needs to change the elastic member from the released state to the compressed state so that the positioning bolt is not inserted into the second positioning hole and is retracted to the side of the extraction box, the operator can turn the handle through the holding portion.

Although the present invention is disclosed as above with the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in similar arts can make some changes and retouch without departing from the spirit and scope of the present invention. The scope of patent protection of an invention shall be determined by the scope of patent application attached to this specification.

10‧‧‧chassis

100‧‧‧ Bracket

110‧‧‧ underside of bracket

120‧‧‧ Side of the bracket

130‧‧‧ top edge of bracket

200‧‧‧First support bolt

210‧‧‧first circumferential surface

300‧‧‧Guide groove

310‧‧‧ Guide open end

320‧‧‧Guide closed mouth

330‧‧‧first guide surface

340‧‧‧Second Guide Surface

400‧‧‧Tray

410‧‧‧ the first end

420‧‧‧second end

421‧‧‧Drawing mouth

430‧‧‧First groove

431‧‧‧First installation open end

432‧‧‧First installation closed end

4321‧‧‧First inner side

440‧‧‧Side of extraction tray

450‧‧‧ first corner

460‧‧‧Second Corner

470‧‧‧Second Groove

471‧‧‧Second mounting open end

472‧‧‧Second installation closed end

4721‧‧‧Second inner side

500‧‧‧handle

510‧‧‧Rotating part

520‧‧‧grip

530‧‧‧Fixed pin

540‧‧‧first positioning hole

550‧‧‧Second positioning hole

600‧‧‧Second support bolt

610‧‧‧Second circumferential surface

700‧‧‧ Positioning Agency

710‧‧‧Positioning bolt

720‧‧‧Elastic piece

R1‧‧‧ Corner Arc Course

R2‧‧‧ hole arc route

D‧‧‧ direction

FIG. 1 is a schematic perspective view of a casing according to an embodiment of the present invention. FIG. 2 is a schematic enlarged front view of a part of the casing of FIG. 1. FIG. FIG. 3 is an enlarged three-dimensional exploded view of the casing of FIG. 1. FIG. 4 is a schematic enlarged front view of a portion of the extraction box and handle of the casing of FIG. 1 rotated relative to the bracket. 5 is a schematic front view of a guide groove of the casing of FIG. 1. FIG. 6 is a schematic perspective view of a casing according to another embodiment of the present invention. FIG. 7 is an enlarged perspective view of the elastic member of the casing of FIG. 6 in a released state. FIG. 8 is an enlarged perspective view of the elastic member of the casing of FIG. 6 in a compressed state. FIG. 9 is a perspective view of a part of the extraction box and the handle of the casing of FIG. 6 rotating with respect to the bracket. FIG. 10 is a partial perspective view of a casing according to another embodiment of the present invention.

Claims (9)

A cabinet includes: a bracket having an adjacent bottom surface of the bracket and a side surface of the bracket; a first support bolt fixed to the side of the bracket; a guide groove on the side of the bracket; the guide The guide slot includes a guide open end and a guide closed end. The guide closed end is closer to the bottom surface of the bracket than the guide open end and is located between the guide open end and the first support bolt. Including a first end and a second end opposite to each other, the first end being rotatably disposed on the first support bolt, the second end having an extraction port, the extraction box having a side of the extraction box, and the side of the extraction box Located between the first end and the second end; a handle is rotatably disposed on the side of the extraction box, the handle includes a holding portion and a fixing pin, and the guide groove is located between the holding portion and the first support Between the bolts, the fixing pin is located at the guide closed end; and a positioning mechanism is provided on the extraction box, the positioning mechanism includes a positioning bolt, and the positioning bolt extends from the side of the extraction box toward the side of the bracket And protruding from the side of the tray, the Hand having a first positioning hole, when the extraction cartridge on the handle side rotation, the first positioning bore holes moves along a curved path, the positioning pin holes are located on the arcuate path. The casing according to item 2 of the scope of patent application, wherein the handle has a second positioning hole, and the distance from the second positioning hole to the bottom surface of the bracket is greater than the distance from the first positioning hole to the bottom surface of the bracket. A positioning pin is partially inserted into the second positioning hole. The casing according to item 2 of the scope of patent application, wherein the positioning mechanism further includes an elastic member connected to the positioning bolt, the elastic member has a released state and a compressed state, and the elastic member is in the released state. When the positioning bolt is pressed by the elastic member and protrudes out of the side of the extraction box, when the elastic member changes from the released state to the compressed state, the elastic member moves in a direction away from the side of the bracket, the positioning As the elastic member moves together away from the side of the bracket, the bolt retracts behind the side of the drawer. The casing according to item 1 of the patent application scope, wherein the extraction box includes a first groove, the first groove is located at the first end of the extraction box, and the first groove includes a first installation opening End and a first mounting closed end, a first inner side surface of one of the first mounting closed end contacting a first circumferential surface of the first support bolt, so that the extraction box passes through the first groove to the first support bolt It is rotatably provided in the bracket for the rotation center. The casing according to item 1 of the scope of patent application, wherein the extraction box has a first corner portion, and the first corner portion is located at the first end of the extraction box and near a corner of the bottom surface of the bracket. When the extraction box rotates, the first corner portion moves along a corner arc path, and the corner arc path does not overlap the bottom surface of the bracket. The casing according to item 1 of the scope of patent application, wherein the guide groove has a first guide surface, the first guide surface is located between the guide open end and the guide closed end, and the first The guide surface is a continuous surface. The casing according to item 1 of the patent application scope, wherein a width of the guide open end of the guide groove is greater than a width of the guide closed end of the guide groove. The casing according to item 1 of the scope of patent application, wherein the extraction box has a second corner portion, the second corner portion is located at the second end of the extraction box and near a corner of the bottom surface of the bracket, the bracket The rack has a bracket top edge, the bracket top edge is located on one side of the bracket side away from the bracket bottom surface, and when the fixing pin is located at the guide opening end, the second corner portion is farther away than the bracket top edge. The bottom surface of the bracket. The casing according to item 1 of the scope of patent application, further comprising a second support bolt, which is fixed on the side of the bracket, and the fixing pin is located between the first support bolt and the second support bolt The extraction box includes a second groove, which is located at the second end of the extraction box. The second groove includes a second installation open end and a second installation closed end. The second installation A second inner side surface of the closed end contacts a second circumferential surface of the second support bolt, so that the extraction box is disposed on the second support bolt through the second groove.