CN108932038B - Multi-adaptability bracket capable of inhibiting electromagnetic radiation of hard disk - Google Patents
Multi-adaptability bracket capable of inhibiting electromagnetic radiation of hard disk Download PDFInfo
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- CN108932038B CN108932038B CN201811128568.6A CN201811128568A CN108932038B CN 108932038 B CN108932038 B CN 108932038B CN 201811128568 A CN201811128568 A CN 201811128568A CN 108932038 B CN108932038 B CN 108932038B
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- clamping
- driving
- clamping driving
- frame
- hard disk
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/183—Internal mounting support structures, e.g. for printed circuit boards, internal connecting means
- G06F1/187—Mounting of fixed and removable disk drives
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/125—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a plurality of recording/reproducing devices, e.g. modular arrangements, arrays of disc drives
- G11B33/127—Mounting arrangements of constructional parts onto a chassis
- G11B33/128—Mounting arrangements of constructional parts onto a chassis of the plurality of recording/reproducing devices, e.g. disk drives, onto a chassis
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1493—Electro-Magnetic Interference [EMI] or Radio Frequency Interference [RFI] shielding; grounding of static charges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention aims to provide a multi-adaptability bracket capable of inhibiting electromagnetic radiation of a hard disk, which is used for solving the technical problems of hard disk fixation and radiation protection. A multi-adaptability bracket capable of inhibiting electromagnetic radiation of a hard disk comprises a bracket body, a clamping mechanism and a shielding layer. The invention has the beneficial effects that: the technical scheme of the invention can achieve good clamping effect on the hard disk and electromagnetic shielding effect.
Description
Technical Field
The invention relates to the technical field of hard disk brackets, in particular to a multi-adaptability bracket capable of inhibiting electromagnetic radiation of a hard disk.
Background
With the rapid development of the internet age, the requirements of the market on the storage function of the server are higher and higher, so that a large number of hard disks can be arranged in the server, thereby meeting the demands of the market and clients. As such, the bracket for mounting the hard disk needs to be adapted to various requirements to adapt to the change of the requirements. The bracket in the prior art has single structure fixation and complex fixation mode; and the electromagnetic shielding effect is poor.
Disclosure of Invention
The invention aims to provide a multi-adaptability bracket capable of inhibiting electromagnetic radiation of a hard disk, which is used for solving the technical problems of hard disk fixation and radiation protection.
The technical scheme adopted for solving the technical problems is as follows:
a multi-adaptability bracket capable of inhibiting electromagnetic radiation of a hard disk comprises a bracket body, a clamping mechanism and a shielding layer;
the rear end of the bracket body is provided with a clamping cavity; the clamping mechanism comprises a clamping driving bidirectional screw rod, a clamping driving forward nut, a clamping driving reverse nut, a clamping driving sliding block and a clamping plate, wherein the clamping driving bidirectional screw rod is rotatably arranged in the clamping driving cavity, and the outer end of the clamping driving bidirectional screw rod is provided with a clamping driving handle; the clamping driving forward nut and the clamping driving reverse nut are respectively matched and screwed on the forward thread section and the reverse thread section of the clamping driving bidirectional screw rod; the clamping driving sliding block is respectively fixedly arranged on the clamping driving forward nut and the clamping driving reverse nut, the inner bottom end of the clamping driving cavity is provided with a clamping driving sliding groove, and the lower end of the clamping driving sliding block is slidably arranged in the clamping driving sliding groove; the front end surface of the clamping driving cavity is communicated with the internal clamping space of the bracket body, the clamping plates are symmetrically arranged in the internal clamping space of the bracket body left and right, and the inner ends of the clamping plates are respectively connected with the clamping driving sliding blocks; the shielding layer is arranged on the inner side of the clamping plate.
Further, the inboard of grip block is equipped with shielding installation spout, the inboard of shielding layer is equipped with shielding shell, is equipped with shielding installation slide rail on shielding shell's the inboard terminal surface, and shielding installation slide rail slidable installs in shielding installation spout.
Further, an elastic layer is arranged on the inner side face of the shielding installation chute.
Further, the fixing device comprises a fixing mechanism, wherein the fixing mechanism comprises a fixing bottom plate and a simple plug fixing pin mechanism;
the fixed bottom plate is arranged on the chassis, the fixed bottom plate is provided with a plug hole, and two sides of an inner cavity of the plug hole are provided with plug fixed side holes; the bracket body is provided with a mounting hole, the mounting hole is arranged corresponding to the plug hole, and the simple plug fixing pin mechanism is plugged in the mounting hole and the plug hole;
the simple plug fixing pin mechanism comprises a pin barrel, a pin cover, a pull rope, a driving frame, an inserting frame, a power revolving frame and a reset spring, wherein a fixed flanging is arranged on the outer side of the upper end of the pin barrel, and the fixed flanging is clamped at the outer end of the mounting hole; clamping windows are symmetrically arranged on the outer side of the lower part of the pin barrel, and the clamping windows are correspondingly arranged with the plug fixing side holes; the inserting frame is hinged at the clamping window, and a crank arm is arranged at the inner end of the inserting frame; the driving frame is arranged in the lower part of the pin cylinder inner cavity in a vertically sliding manner, and the lower end of the driving frame is connected with the bottom end of the pin cylinder inner cavity through a reset spring; the outer side end of the upper part of the driving frame is hinged with the inner end crank arm of the inserting frame; the power revolving frame is arranged in the lower part of the pin cylinder inner cavity and is positioned below the driving frame; the lower end of the stay rope bypasses the power revolving frame to be connected with the driving frame above, and the upper end of the stay rope is connected with the pin cover; the pin cover is located outside the upper end of the pin barrel.
Further, the outside of the pin cylinder is axially provided with a guide rail, the inside of the plug hole is axially provided with a guide groove, and the guide rail can be installed in the guide groove in an up-and-down sliding manner.
Further, the reset springs are distributed on two sides of the lower end of the driving frame, and the power revolving frame is arranged in a space between the reset springs on two sides.
Furthermore, shielding layers are arranged on the inner end face and the outer end face of the fixed bottom plate.
The effects provided in the summary of the invention are merely effects of embodiments, not all effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
the technical scheme of the invention can achieve good clamping effect on the hard disk and electromagnetic shielding effect.
Drawings
FIG. 1 is a schematic top view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a clamping mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view illustrating the mating relationship between the clamping plate and the shielding mechanism in an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a securing mechanism according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of a portion of FIG. 4;
in the figure: 1. a bracket body; 2. clamping and driving a bidirectional screw; 3. clamping and driving a forward nut; 4. clamping and driving the reverse nut; 5. clamping the driving sliding block; 6. a clamping plate; 7. a fixed bottom plate; 8. a plug hole; 9. a side hole is fixed in a plugging manner; 10. a pin barrel; 11. a pin cover; 12. a pull rope; 13. a drive rack; 14. a plug-in frame; 15. a power revolving frame; 16. a return spring; 17. a crank arm; 18. a shield case; 19. a shielding layer; 20. a shielding installation chute; 21. an elastic layer; 22. clamping the driving cavity; 23. a mounting hole; 24. fixing the outer flange.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and techniques are omitted so as to not unnecessarily obscure the present invention.
As shown in fig. 1 to 5, a multi-adaptive bracket capable of suppressing electromagnetic radiation of a hard disk includes a bracket body 1, a clamping mechanism, a fixing mechanism, and a shielding mechanism.
The bracket body 1 adopts a frame structure, and the bracket body 1 is used for installing other functional components and clamping a hard disk. The clamping mechanism is used for movably clamping the hard disk in the bracket body 1 so as to adapt to the hard disk with various specifications and sizes. The clamping mechanism comprises a clamping driving bidirectional screw rod 2, a clamping driving forward nut 3, a clamping driving reverse nut 4, a clamping driving sliding block 5 and a clamping plate 6. The rear end of the bracket body 1 is provided with a clamping driving cavity 22, the clamping driving bidirectional screw 2 is rotatably arranged in the clamping driving cavity 22, and the outer end of the clamping driving bidirectional screw 2 is provided with a clamping driving handle so as to conveniently rotate and drive the clamping driving bidirectional screw 2. The clamping driving forward nut 3 and the clamping driving reverse nut 4 are respectively matched and screwed on the forward thread section and the reverse thread section of the clamping driving bidirectional screw rod 2. The clamping driving sliding block 5 is respectively fixedly arranged on the clamping driving forward nut 3 and the clamping driving reverse nut 4, the inner bottom end of the clamping driving cavity 22 is provided with a clamping driving sliding groove, and the lower end of the clamping driving sliding block 5 is slidably arranged in the clamping driving sliding groove. The front end face of the clamping driving cavity 22 is communicated with the inner clamping space of the bracket body 1, the clamping plates 6 are symmetrically arranged in the inner clamping space of the bracket body 1, and the inner ends of the clamping plates 6 are respectively connected with the clamping driving sliding blocks 5. The clamping plate 6 is used for clamping the hard disk on the left side and the right side.
The fixing mechanism is used for installing the bracket body 1 on the chassis and comprises a fixed bottom plate 7 and a simple plug fixing pin mechanism. The fixed bottom plate 7 is used for being directly connected with the case, and a fixed screw hole is formed in the fixed bottom plate 7 and can be in threaded connection with the case through a screw or welded with the case; the fixed bottom plate 7 is provided with a plug hole 8, two sides of the inner cavity of the plug hole 8 are provided with plug fixed side holes 9, and the plug hole 8 is correspondingly arranged with the lower end of the simple plug fixing pin mechanism. Preferably, shielding layers (aluminum foils) are arranged on the inner end surface and the outer end surface of the fixed bottom plate 7. The four corners of the bracket body 1 are respectively provided with a mounting hole 23, and the simple fixing pin inserting and pulling mechanism is arranged in the mounting holes 23. The simple plug-in fixing pin mechanism comprises a pin barrel 10, a pin cover 11, a pull rope 12 (steel wire), a driving frame 13, a plug-in frame 14, a power revolving frame 15 and a return spring 16. The outer side of the upper end of the pin barrel 10 is provided with a fixed flanging 24, and the fixed flanging 24 is used for being clamped at the outer end of the mounting hole 23; the outer side of the lower part of the pin barrel 10 is symmetrically provided with clamping windows which are arranged corresponding to the plug-in fixed side holes 9. The outer side of the pin cylinder 10 is provided with a guide rail along the axial direction, and the inner side of the plug hole 8 is provided with a guide groove along the axial direction; when in use, the guide rail can be arranged in the guide groove in a vertical sliding way. The plug-in frame 14 is hinged at the clamping window, and a crank arm 17 is arranged at the inner end of the plug-in frame 14. The driving frame 13 is arranged in the lower part of the inner cavity of the pin barrel 10 in a vertically sliding way, and the lower end of the driving frame 13 is connected with the bottom end of the inner cavity of the pin barrel 10 through a return spring 16; the outer side end of the driving frame 13 is hinged with an inner end crank arm 17 of the inserting frame 14. Preferably, the return springs 16 are shown distributed on both sides of the lower end of the drive frame 13. The power revolving frame 15 is installed in the lower part of the inner cavity of the pin cylinder 10 and is positioned below the driving frame 13. Preferably, the power turret 15 is disposed in a space between the return springs 16 on both sides. The lower end of the pull rope 12 bypasses the power revolving frame 15 to be connected with the driving frame 13 above, and the upper end of the pull rope 12 is connected with the pin cover 11; the pin cover 11 is located outside the upper end of the pin barrel 10.
The shielding mechanism is mounted on the inner side of the clamping plate 6, and comprises a shielding shell 18 and a shielding layer 19 (aluminum foil), wherein the shielding layer 19 is mounted on the outer side of the shielding shell 18. A shielding installation chute 20 is arranged on the inner side of the clamping plate 6, and an elastic layer 21 (rubber layer) is arranged on the inner side surface of the shielding installation chute 20; the inner side end surface of the shielding shell 18 is provided with a shielding installation sliding rail, and the shielding installation sliding rail is slidably installed in the shielding installation sliding chute 20.
In the method of the present invention, when fixing the hard disk, the fixing base plate 7 is first mounted on the chassis, and then the bracket body 1 is mounted on the fixing base plate 7 (the insertion hole 8 and the mounting hole 23 are opposite). The simple plug fixing pin mechanism is inserted into the plug hole 8 through the mounting hole 23, and the plug frame 14 is in an outward expansion state under the action of the driving frame 13 because the reset spring 16 is in a reset state, and the outer end of the plug frame 14 enters the plug fixing side hole 9; the bracket body 1 is in a fixed connection state with the fixed bottom plate 7. The shielding mechanism is arranged on the inner side of the clamping plate 6, and then the hard disk is clamped by the clamping mechanism.
When the bracket body 1 and the hard disk are required to be disassembled, the pull rope 12 is pulled upwards through the pin cover 11, and the lower end of the pull rope 12 pulls the driving frame 13 downwards under the action of the power revolving frame 15; further, the driving frame 13 drives the inserting frame 14 to retract inwards, and the outer end of the inserting frame 14 withdraws from the inserting and pulling fixing side hole 9. Then the simple plug fixing pin mechanism is pulled out integrally upwards, and the fixing bottom plate 7 is separated from the bracket body 1. The hard disk can be taken down from between the clamping plates 6 at both sides by driving the clamping mechanism reversely.
Other than the technical features described in the specification, all are known to those skilled in the art.
While the foregoing description of the embodiments of the present invention has been presented with reference to the drawings, it is not intended to limit the scope of the invention, and on the basis of the technical solutions of the present invention, various modifications or variations can be made by those skilled in the art without the need of inventive effort, and still remain within the scope of the invention.
Claims (7)
1. A multi-adaptability bracket capable of inhibiting electromagnetic radiation of a hard disk is characterized by comprising a bracket body, a clamping mechanism and a shielding layer;
the rear end of the bracket body is provided with a clamping cavity; the clamping mechanism comprises a clamping driving bidirectional screw rod, a clamping driving forward nut, a clamping driving reverse nut, a clamping driving sliding block and a clamping plate, wherein the clamping driving bidirectional screw rod is rotatably arranged in the clamping driving cavity, and the outer end of the clamping driving bidirectional screw rod is provided with a clamping driving handle; the clamping driving forward nut and the clamping driving reverse nut are respectively matched and screwed on the forward thread section and the reverse thread section of the clamping driving bidirectional screw rod; the clamping driving sliding block is respectively fixedly arranged on the clamping driving forward nut and the clamping driving reverse nut, the inner bottom end of the clamping driving cavity is provided with a clamping driving sliding groove, and the lower end of the clamping driving sliding block is slidably arranged in the clamping driving sliding groove; the front end surface of the clamping driving cavity is communicated with the internal clamping space of the bracket body, the clamping plates are symmetrically arranged in the internal clamping space of the bracket body left and right, and the inner ends of the clamping plates are respectively connected with the clamping driving sliding blocks; the shielding layer is arranged on the inner side of the clamping plate.
2. The multi-adaptive bracket capable of inhibiting electromagnetic radiation of a hard disk according to claim 1, wherein a shielding installation chute is formed in the inner side of the clamping plate, a shielding shell is arranged in the inner side of the shielding layer, a shielding installation slide rail is arranged on the inner side end surface of the shielding shell, and the shielding installation slide rail is slidably installed in the shielding installation chute.
3. The multi-adaptive bracket for suppressing electromagnetic radiation of hard disk according to claim 2, wherein an elastic layer is provided on an inner side surface of said shield mounting chute.
4. The multi-adaptive bracket capable of inhibiting electromagnetic radiation of a hard disk according to claim 1, comprising a fixing mechanism, wherein the fixing mechanism comprises a fixing bottom plate and a simple plug fixing pin mechanism;
the fixed bottom plate is arranged on the chassis, the fixed bottom plate is provided with a plug hole, and two sides of an inner cavity of the plug hole are provided with plug fixed side holes; the bracket body is provided with a mounting hole, the mounting hole is arranged corresponding to the plug hole, and the simple plug fixing pin mechanism is plugged in the mounting hole and the plug hole;
the simple plug fixing pin mechanism comprises a pin barrel, a pin cover, a pull rope, a driving frame, an inserting frame, a power revolving frame and a reset spring, wherein a fixed flanging is arranged on the outer side of the upper end of the pin barrel, and the fixed flanging is clamped at the outer end of the mounting hole; clamping windows are symmetrically arranged on the outer side of the lower part of the pin barrel, and the clamping windows are correspondingly arranged with the plug fixing side holes; the inserting frame is hinged at the clamping window, and a crank arm is arranged at the inner end of the inserting frame; the driving frame is arranged in the lower part of the pin cylinder inner cavity in a vertically sliding manner, and the lower end of the driving frame is connected with the bottom end of the pin cylinder inner cavity through a reset spring; the outer side end of the upper part of the driving frame is hinged with the inner end crank arm of the inserting frame; the power revolving frame is arranged in the lower part of the pin cylinder inner cavity and is positioned below the driving frame; the lower end of the stay rope bypasses the power revolving frame to be connected with the driving frame above, and the upper end of the stay rope is connected with the pin cover; the pin cover is located outside the upper end of the pin barrel.
5. The multi-adaptive bracket capable of inhibiting electromagnetic radiation of hard disk according to claim 4, wherein the outer side of the pin cylinder is axially provided with a guide rail, the inner side of the insertion hole is axially provided with a guide groove, and the guide rail is slidably arranged in the guide groove up and down.
6. The multi-adaptive bracket for suppressing electromagnetic radiation of hard disk as recited in claim 4, wherein said return springs are disposed on both sides of the lower end of the driving frame, and the power turret is disposed in a space between the return springs on both sides.
7. The multi-adaptive bracket capable of suppressing electromagnetic radiation of a hard disk according to claim 4, wherein shielding layers are provided on both inner and outer end surfaces of the fixed base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128568.6A CN108932038B (en) | 2018-09-26 | 2018-09-26 | Multi-adaptability bracket capable of inhibiting electromagnetic radiation of hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128568.6A CN108932038B (en) | 2018-09-26 | 2018-09-26 | Multi-adaptability bracket capable of inhibiting electromagnetic radiation of hard disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108932038A CN108932038A (en) | 2018-12-04 |
| CN108932038B true CN108932038B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811128568.6A Active CN108932038B (en) | 2018-09-26 | 2018-09-26 | Multi-adaptability bracket capable of inhibiting electromagnetic radiation of hard disk |
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| Country | Link |
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| CN (1) | CN108932038B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10624227B1 (en) * | 2019-03-04 | 2020-04-14 | Quanta Computer Inc. | Computer chassis with rail brackets |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050948A1 (en) * | 2008-10-30 | 2010-05-06 | Hewlett-Packard Development Company, L.P. | Hard-disk drive insertion |
| CN203773439U (en) * | 2014-01-11 | 2014-08-13 | 浪潮电子信息产业股份有限公司 | Universal hard disk bracket |
| CN205121451U (en) * | 2015-11-20 | 2016-03-30 | 浪潮电子信息产业股份有限公司 | Server hard disk bracket mounting |
| CN107728730A (en) * | 2017-10-23 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of hard disk support bracket of convenient installation |
| CN207198762U (en) * | 2017-09-25 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of hard disk support bracket for exempting from installation tool |
| CN207352543U (en) * | 2017-11-09 | 2018-05-11 | 郑州云海信息技术有限公司 | A kind of drawing type hard disk bracket |
| CN207752409U (en) * | 2017-12-11 | 2018-08-21 | 深圳中电长城信息安全系统有限公司 | Hard disk support bracket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI550603B (en) * | 2014-02-24 | 2016-09-21 | 鴻海精密工業股份有限公司 | Hard disk drive filler |
-
2018
- 2018-09-26 CN CN201811128568.6A patent/CN108932038B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010050948A1 (en) * | 2008-10-30 | 2010-05-06 | Hewlett-Packard Development Company, L.P. | Hard-disk drive insertion |
| CN203773439U (en) * | 2014-01-11 | 2014-08-13 | 浪潮电子信息产业股份有限公司 | Universal hard disk bracket |
| CN205121451U (en) * | 2015-11-20 | 2016-03-30 | 浪潮电子信息产业股份有限公司 | Server hard disk bracket mounting |
| CN207198762U (en) * | 2017-09-25 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of hard disk support bracket for exempting from installation tool |
| CN107728730A (en) * | 2017-10-23 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of hard disk support bracket of convenient installation |
| CN207352543U (en) * | 2017-11-09 | 2018-05-11 | 郑州云海信息技术有限公司 | A kind of drawing type hard disk bracket |
| CN207752409U (en) * | 2017-12-11 | 2018-08-21 | 深圳中电长城信息安全系统有限公司 | Hard disk support bracket |
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| Publication number | Publication date |
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| CN108932038A (en) | 2018-12-04 |
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