CN108712844B - Server slide rail capable of moving in sequence - Google Patents
Server slide rail capable of moving in sequence Download PDFInfo
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- CN108712844B CN108712844B CN201810802238.4A CN201810802238A CN108712844B CN 108712844 B CN108712844 B CN 108712844B CN 201810802238 A CN201810802238 A CN 201810802238A CN 108712844 B CN108712844 B CN 108712844B
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- slide rail
- sliding rail
- rail
- clamping
- movable
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1485—Servers; Data center rooms, e.g. 19-inch computer racks
- H05K7/1488—Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures
- H05K7/1489—Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures characterized by the mounting of blades therein, e.g. brackets, rails, trays
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Drawers Of Furniture (AREA)
Abstract
A but server slide rail of slide rail technical field sequence motion includes: the inner slide rail is provided with a first, a second and a third raised clamping points on the inner surface, and the three clamping points are arranged in an upper group and a lower group; the middle sliding rail is provided with an inner sliding rail; the middle sliding rail is provided with a locking mechanism; an outer slide rail provided with a middle slide rail; the inner side surface of the outer slide rail is provided with a fourth, a fifth and a sixth raised clamping points, and the three clamping points are arranged in an upper group and a lower group; of the two clamping points which are arranged in the same group, one clamping point which is positioned in the pull-out direction of the slide rail and is firstly touched by the locking mechanism is provided with a guide inclined plane; one single clamping point which is arranged in groups is provided with a guide inclined plane; the locking mechanism comprises an upper movable part and a lower movable part, the upper movable part and the lower movable part are protruded towards the direction of the outer sliding rail and the direction of the inner sliding rail and are contacted with the clamping points on the outer sliding rail and the inner sliding rail to be separated so as to realize the orderly pulling-out and pushing-in of the sliding rails. The three-section sliding rail can be orderly pulled out and pushed in, and has the advantages of simple structure, convenience in use and the like.
Description
Technical Field
The invention relates to the technology in the field of sliding rails, in particular to a server sliding rail capable of moving sequentially.
Background
The common server sliding rail device adopts a three-section sliding rail structure and comprises an outer sliding rail, a middle sliding rail and an inner sliding rail, wherein the outer sliding rail is fixed on a rack, the inner sliding rail is fixed at two sides of a server, the middle sliding rail is arranged between the outer sliding rail and the inner sliding rail as a bearing rail so as to extend the moving range of the server, and the inner sliding rail and the middle sliding rail can slide back and forth relative to the outer sliding rail along the axial direction of the outer sliding rail so as to pull out or withdraw the server.
Most of the server sliding rails on the market at present can not realize the orderly pulling-out and pushing-in of the sliding rails, so that the service life of the server sliding rails is limited, the sliding smoothness is insufficient, and the user experience is influenced; although the server rail disclosed in the publication (publication) No. CN102781197B can realize the orderly pulling out and pushing in of three-section rails, the server rail still has the problems of complex structure, large processing difficulty, high production cost, and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the server sliding rail capable of moving sequentially, can realize the orderly pulling-out and pushing-in of three sections of sliding rails, and has the advantages of simple structure, convenience in use and the like.
The invention is realized by the following technical scheme:
the invention comprises the following steps:
the inner slide rail is provided with a first clamping point, a second clamping point and a third clamping point which are raised on the inner surface, and the three clamping points are arranged in an upper group and a lower group;
the middle sliding rail is provided with an inner sliding rail; the middle sliding rail is provided with a locking mechanism;
an outer slide rail provided with a middle slide rail; the inner side surface of the outer slide rail is provided with a fourth clamping point, a fifth clamping point and a sixth clamping point which are raised, and the three clamping points are arranged in an upper group and a lower group;
one of the upper and lower groups of clamping points is independently grouped, the other two clamping points are arranged in the same group, and the number of the upper and lower groups of clamping points in the inner slide rail is different from the number of the upper and lower groups of clamping points in the outer slide rail; of the two clamping points arranged in the same group, one clamping point which is positioned in the pulling-out direction of the slide rail and is firstly touched by the locking mechanism is provided with a guide inclined plane; one single clamping point which is arranged in groups is provided with a guide inclined plane;
the locking mechanism comprises an upper movable part and a lower movable part, the upper movable part and the lower movable part are protruded towards the outer slide rail and the inner slide rail and are contacted with the clamping points on the outer slide rail and the inner slide rail to be separated so as to realize the orderly pulling-out and pushing-in of the slide rails.
The inner side surfaces of the inner and outer slide rails are both relative to the middle slide rail.
The upper movable part and the lower movable part are arranged in an ectopic way in the pulling-out direction of the slide rail, and one movable part protrudes out of the other movable part; the relatively protruding movable part is arranged opposite to two clamping points of the same group on the outer slide rail and one clamping point of the same group on the inner slide rail, and the relatively retracted movable part is arranged opposite to two clamping points of the same group on the inner slide rail and one clamping point of the same group on the outer slide rail.
The locking mechanism is provided with a fixed part, and the upper movable part, the lower movable part and the fixed part are integrally formed; the fixing part is fixed on the middle slide rail through welding, riveting or punching.
Preferably, the upper and lower movable parts adopt a hook structure.
The invention is also provided with a far-end unlocking mechanism, when the slide rail is pulled out to the maximum stroke, the middle slide rail is firstly unlocked and pushed into the outer slide rail, and then the server case can be taken down, so that the space occupied by the case in the mounting and dismounting process can be reduced, a terminal customer can mount more cabinets in the same field, and the cost is reduced.
The remote unlocking mechanism comprises an operating part and an unlocking part which are connected; the operating part is arranged between the middle slide rail and the outer slide rail, the tail end of the operating part is positioned at the tail end of the pulling-out stroke of the middle slide rail, and the front end of the operating part is connected with the unlocking part; the unlocking part is arranged between the middle slide rail and the inner slide rail and provided with an unlocking inclined plane, and when the unlocking inclined plane is abutted against the movable part, the movable part is opened to enable the movable part to be separated from the clamping point so as to be pushed into the middle slide rail.
The far-end unlocking mechanism is connected and fixed on the middle sliding rail through riveting or buckling.
Preferably, the far-end unlocking mechanism is further provided with an elastic body, so that the far-end unlocking mechanism can automatically reset; one end of the elastic body is fixedly connected with the middle slide rail body or the locking mechanism, and the other end of the elastic body is connected with the operation part of the far-end unlocking mechanism.
Further preferably, the operating portion is provided with a draw hook at the front end, the locking mechanism is provided with a draw hook on the fixing portion, and two ends of the elastic body are respectively fixedly connected with the two draw hooks, so that the size of the elastic body can be reduced to the maximum extent, and structural design of the middle sliding rail is facilitated.
Preferably, the elastic body is a return spring.
Technical effects
Compared with the prior art, the invention has the advantages that the outer slide rail and the inner slide rail are provided with a plurality of groups of clamping points, and the middle slide rail is correspondingly provided with the locking mechanism, so that the sequential movement and locking of the slide rails can be realized, the clamping points and the locking mechanism are simple to set, and the production cost is favorably reduced; in addition, the arranged far-end unlocking mechanism can reduce the operation requirement on space when an operator pushes and pulls the server, and the operation convenience is improved.
Drawings
FIG. 1 is an exploded view of example 1;
FIG. 2 is an enlarged view of the position structure of the inner slide rail stuck point in FIG. 1;
FIG. 3 is an enlarged view of a portion of the track shown in FIG. 1;
FIG. 4 is an enlarged view of the structure of the outer slide rail at the fastening point in FIG. 1;
FIG. 5 is a schematic view of the locking mechanism of FIG. 1;
FIG. 6a is a schematic view showing a position of a locking point of the inner slide rail and the locking point of the locking mechanism before the inner slide rail and the middle slide rail are pulled out together in embodiment 1;
FIG. 6b is the structure diagram of the locking mechanism and the locking point of the outer slide rail when the middle slide rail and the inner slide rail are pulled out together to the limit position in embodiment 1;
FIG. 6c is a schematic view showing a position of a locking point of the locking mechanism and the inner rail when the middle rail and the inner rail are pulled out together to the extreme positions in embodiment 1;
fig. 7a is a structural view of the position of the locking point between the outer rail and the locking mechanism before the inner rail is pushed into the middle rail in embodiment 1;
fig. 7b is a structural view of the position of the locking mechanism and the inner slide rail fastening point when the inner slide rail is pushed into the middle slide rail to the limit position in embodiment 1;
fig. 7c is a structural view of the position of the locking mechanism and the locking point of the outer slide rail when the inner slide rail is pushed into the middle slide rail to the limit position in embodiment 1;
fig. 8a is a schematic structural view of a distal unlocking mechanism in embodiment 1;
fig. 8b is a schematic diagram of distal unlocking in embodiment 1;
FIGS. 6a, 6b, 6c, 7a, 7b, 7c do not relate to the distal unlocking operation, so the distal unlocking mechanism is omitted;
in the figure: the locking device comprises an inner slide rail 1, a middle slide rail 2, an outer slide rail 3, a far-end unlocking mechanism 4, a first clamping point 11, a second clamping point 12, a third clamping point 13, a draw hook 14, a locking mechanism 21, a fourth clamping point 31, a fifth clamping point 32, a sixth clamping point 33, an operation part 41, an unlocking part 42, a reset spring 43, a first guide inclined plane 111, a third guide inclined plane 131, an upper clamping hook 211, a lower clamping hook 212, a fixing part 213, a fifth guide inclined plane 321, a sixth guide inclined plane 331 and an unlocking inclined plane 421.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
Example 1
As shown in fig. 1, the present embodiment includes:
the inner slide rail 1 is provided with a first clamping point 11, a second clamping point 12 and a third clamping point 13 which are protruded on the inner surface, and the three clamping points are arranged in an upper group and a lower group, as shown in fig. 2;
the middle sliding rail 2 is provided with an inner sliding rail 1; the middle slide rail 2 is provided with a locking mechanism 21, as shown in fig. 3;
an outer slide rail 3 provided with a middle slide rail 2; the inner side surface of the outer slide rail 3 is provided with a fourth clamping point 31, a fifth clamping point 32 and a sixth clamping point 33 which are raised, and the three clamping points are arranged in an upper group and a lower group, as shown in fig. 4;
the locking mechanism 21 is separated from the outer slide rail 3 and each clamping point on the inner slide rail 1 by touching, so that the slide rails are pulled out and pushed in order.
As shown in fig. 5, the locking mechanism 21 is provided with a fixing portion 213, the fixing portion 213 is riveted on the middle slide rail 2, and the fixing portion 213 is connected with an upper hook 211 and a lower hook 212 at the same end; the upper hook 211 and the lower hook 212 protrude towards the inner slide rail 1 and the outer slide rail 3, and are contacted with each clamping point on the outer slide rail 3 and the inner slide rail 1 to separate from the clamping points, so that the slide rails can be orderly pulled out and pushed in.
In this embodiment, the first clamping point 11, the second clamping point 12 and the third clamping point 13 on the inner slide rail 1 are arranged up and down, the first clamping points 11 are individually arranged in groups, the second clamping point 12 and the third clamping point 13 are successively arranged in groups along the slide rail pushing direction, the first clamping point 11 is provided with a first guiding inclined plane 111, and the third clamping point 13 is provided with a third guiding inclined plane 131; the fourth clamping point 31, the fifth clamping point 32 and the sixth clamping point 33 on the outer slide rail 3 are arranged up and down, the sixth clamping points 33 are independently arranged in groups, the fourth clamping point 31 and the fifth clamping point 32 are successively arranged in the same group along the push-in direction of the slide rail, the fifth clamping point 32 is provided with a fifth guide inclined surface 321, and the sixth clamping point 33 is provided with a sixth guide inclined surface 331;
correspondingly, in the pull-out direction of the slide rail, the upper hook 211 protrudes from the lower hook 212.
The process of orderly pulling out the slide rail of the embodiment is as follows:
1) firstly, simultaneously pulling out the middle slide rail 2 and the inner slide rail 1;
the lower hook 212 is clamped between the second clamping point 12 and the third clamping point 13, and the inner slide rail 1 cannot be pulled out of the middle slide rail 2; after the lower hook 212 abuts against the second fastening point 12, the upper hook 211 is pushed up by the first guiding inclined plane 111 of the first fastening point 11 to be in an open state, as shown in fig. 6a, and at this time, the middle slide rail 2 and the inner slide rail 1 are simultaneously pulled out;
when the middle slide rail 2 is pulled to the limit position with the inner slide rail 1, the lower hook 212 is jacked up by the sixth guide inclined plane 331 of the sixth clamping point 33 to be in an open state; meanwhile, the upper hook 211 is still in an open state, and after sliding past the fifth fastening point 32, the upper hook returns to a natural state and is blocked by the fourth fastening point 31, and the middle sliding rail 2 cannot be pulled outwards continuously, as shown in fig. 6 b;
2) then the inner slide rail 3 is continuously pulled out;
when the sliding rail is pulled continuously, the third fastening point 13 on the inner sliding rail 3 slides over the lower fastening hook 212 in the open state, and the inner sliding rail 1 can be pulled out continuously to the limit position from the fastening points of the middle sliding rail 2, as shown in fig. 6 c.
The process of orderly pushing the slide rail in the embodiment is as follows:
1) pushing the inner slide rail 1;
the upper hook 211 is blocked between the fourth fastening point 31 and the fifth fastening point 32, so that the middle slide rail 2 cannot be separated from the outer slide rail 1 and pushed in; when the slide rail is pushed, the lower hook 212 on the middle slide rail 2 is jacked up by the sixth guiding inclined plane 331 of the sixth clipping point 33 to be in an open state, as shown in fig. 7a, and the upper hook 211 abuts against the inner side of the fifth clipping point 32; in the pushing process, the inner slide rail 1 is pushed into the middle slide rail 2, and the upper hook 211 is jacked up by the first guide inclined plane 111 to the first clamping point 11 so that the upper hook 211 is in an open state; continuing to push in, the third fastening point 13 slides over the lower fastening hook 212 in the open state, and the inner slide rail 1 is pushed into the limit position, as shown in fig. 7 b;
2) simultaneously pushing the middle slide rail 2 and the inner slide rail 1;
the sliding rail is pushed in continuously, the upper hook 211 in the open state slides over the fifth fastening point 32, as shown in fig. 7c, and the fastening points of the middle sliding rail 2 and the outer sliding rail 1 are separated; then, the upper hook 211 and the lower hook 212 both return to the natural state, the lower hook 212 falls between the second fastening point 12 and the third fastening point 13, and the middle slide rail 2 and the inner slide rail 1 can be pushed into the limit position together.
As shown in fig. 1, 8a and 8b, the present embodiment is further provided with a distal unlocking mechanism 4, wherein the distal unlocking mechanism 4 is fixed on the middle slide rail 2 by riveting, and comprises an operating part 41 and an unlocking part 42 which are connected, and the unlocking part 42 is arranged opposite to the upper hook 211; the operating part 41 is arranged between the middle slide rail 2 and the outer slide rail 3, the tail end of the operating part 41 is positioned at the tail end of the pulling stroke of the middle slide rail, and the front end of the operating part 41 is connected with the unlocking part 42; the unlocking part 42 is arranged between the middle slide rail 2 and the inner slide rail 1, the unlocking part 42 is provided with an unlocking inclined surface 421, and the unlocking inclined surface 421 opens the upper hook 211 when abutting against the upper hook 211 so that the upper hook 211 is separated from the fourth clamping point 31 to be pushed into the middle slide rail 2;
the operating part 41 can be interlocked with the unlocking part 42 by buckling fingers to the inner slide rail direction, the unlocking inclined plane 421 jacks up the upper hook 211 to enable the upper hook 211 to be in an open state and to be separated from the fourth clamping point 31, and then the operating part 41 is released to realize unlocking and pushing of the middle slide rail 2.
As shown in fig. 3 and 8b, the remote unlocking mechanism 4 is further provided with a return spring 43, so that the remote unlocking mechanism 4 automatically returns after the external unlocking force is lost; one end of the return spring 43 is fixedly connected with the draw hook 14 on the fixing portion 213, and the other end is fixedly connected with the draw hook 14 at the front end of the operating portion 41.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. A sequentially movable server skid, comprising:
the inner slide rail is provided with a first clamping point, a second clamping point and a third clamping point which are raised on the inner surface, and the three clamping points are arranged in an upper group and a lower group;
the middle sliding rail is provided with an inner sliding rail; the middle sliding rail is provided with a locking mechanism;
an outer slide rail provided with a middle slide rail; the inner side surface of the outer slide rail is provided with a fourth clamping point, a fifth clamping point and a sixth clamping point which are raised, and the three clamping points are arranged in an upper group and a lower group;
one of the upper and lower groups of clamping points is independently grouped, the other two clamping points are arranged in the same group, and the number of the upper and lower groups of clamping points in the inner slide rail is different from the number of the upper and lower groups of clamping points in the outer slide rail; of the two clamping points arranged in the same group, one clamping point which is positioned in the pulling-out direction of the slide rail and is firstly touched by the locking mechanism is provided with a guide inclined plane; one single clamping point which is arranged in groups is provided with a guide inclined plane;
the locking mechanism comprises an upper movable part and a lower movable part, the upper movable part protrudes towards the direction of the outer sliding rail and the direction of the inner sliding rail, and the lower movable part protrudes towards the direction of the outer sliding rail and the direction of the inner sliding rail; the sliding rails are orderly pulled out and pushed in by touching and separating the upper movable part and the lower movable part of the locking mechanism with the clamping points on the outer sliding rail and the inner sliding rail.
2. The server rack of claim 1, wherein the upper and lower movable portions of the locking mechanism are disposed at different positions in a rack-out direction, and one movable portion protrudes from the other movable portion; the relatively protruding movable part is arranged opposite to two clamping points of the same group on the outer slide rail and one clamping point of the same group on the inner slide rail, and the relatively retracted movable part is arranged opposite to two clamping points of the same group on the inner slide rail and one clamping point of the same group on the outer slide rail.
3. The sequentially movable server skid of claim 2, wherein the locking mechanism comprises a fixed portion, and the upper and lower movable portions are integrally formed with the fixed portion; the fixing part is fixed on the middle slide rail through welding, riveting or punching.
4. The sequentially movable server skid of claim 3, wherein said upper and lower movable portions are hook-type structures.
5. The sequentially movable server skid of any preceding claim, wherein the sequentially movable server skid is provided with a distal unlocking mechanism comprising an operating portion and an unlocking portion connected thereto; the operating part is arranged between the middle slide rail and the outer slide rail, the tail end of the operating part is positioned at the tail end of the pulling-out stroke of the middle slide rail, and the front end of the operating part is connected with the unlocking part; the unlocking part is positioned between the middle sliding rail and the inner sliding rail and provided with an unlocking inclined plane, and when the unlocking inclined plane is abutted against the movable part, the movable part is opened to enable the movable part to be separated from a clamping point so as to be pushed into the middle sliding rail.
6. The sequentially movable server skid of claim 5, wherein the distal unlocking mechanism is secured to the middle skid by a riveted or snap fit connection.
7. The server slide rail capable of sequentially moving according to claim 5, wherein the far-end unlocking mechanism is further provided with an elastic body, one end of the elastic body is fixedly connected with the middle slide rail body or the locking mechanism, and the other end of the elastic body is connected with the operating part of the far-end unlocking mechanism.
8. The sequentially movable server rail according to claim 7, wherein the operating portion has a hook at a front end thereof, the locking mechanism has a hook at a fixed portion thereof, and both ends of the elastic body are fixedly connected to the two hooks, respectively.
9. The sequentially movable server rail of claim 7 or 8, wherein the elastic body is a return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810802238.4A CN108712844B (en) | 2018-07-20 | 2018-07-20 | Server slide rail capable of moving in sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810802238.4A CN108712844B (en) | 2018-07-20 | 2018-07-20 | Server slide rail capable of moving in sequence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108712844A CN108712844A (en) | 2018-10-26 |
| CN108712844B true CN108712844B (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810802238.4A Active CN108712844B (en) | 2018-07-20 | 2018-07-20 | Server slide rail capable of moving in sequence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108712844B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111526688B (en) * | 2019-02-01 | 2021-06-01 | 勤诚兴业股份有限公司 | Server device and tenon clamping mechanism thereof |
| TWI689238B (en) | 2019-02-01 | 2020-03-21 | 勤誠興業股份有限公司 | Server device and its latch mechanism |
| CN113677145B (en) * | 2021-07-31 | 2023-04-25 | 苏州浪潮智能科技有限公司 | Server cabinet and sliding rail installation mechanism thereof |
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| DE2645667A1 (en) * | 1976-10-09 | 1978-04-13 | Siewer Und Griesemer Gmbh U Co | Easily assembled ball guide for drawers - has universal coupling member for right and left hand sides with spring ends engageable in apertures |
| CN200991011Y (en) * | 2006-12-27 | 2007-12-19 | 鸿富锦精密工业（深圳）有限公司 | Slide-rail device |
| CN101204275A (en) * | 2006-12-22 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | Ball slide rail |
| CN102238841A (en) * | 2010-04-27 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Slide rail mechanism |
| CN102548332A (en) * | 2010-12-24 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Sliding track device |
| CN102548333A (en) * | 2010-12-30 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Sliding rail device |
| CN106793664A (en) * | 2016-12-13 | 2017-05-31 | 无锡海达尔精密滑轨股份有限公司 | For server cabinet can sequential movements slide rail |
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2018
- 2018-07-20 CN CN201810802238.4A patent/CN108712844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2645667A1 (en) * | 1976-10-09 | 1978-04-13 | Siewer Und Griesemer Gmbh U Co | Easily assembled ball guide for drawers - has universal coupling member for right and left hand sides with spring ends engageable in apertures |
| CN101204275A (en) * | 2006-12-22 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | Ball slide rail |
| CN200991011Y (en) * | 2006-12-27 | 2007-12-19 | 鸿富锦精密工业（深圳）有限公司 | Slide-rail device |
| CN102238841A (en) * | 2010-04-27 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Slide rail mechanism |
| CN102548332A (en) * | 2010-12-24 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Sliding track device |
| CN102548333A (en) * | 2010-12-30 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Sliding rail device |
| CN106793664A (en) * | 2016-12-13 | 2017-05-31 | 无锡海达尔精密滑轨股份有限公司 | For server cabinet can sequential movements slide rail |
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|---|---|
| CN108712844A (en) | 2018-10-26 |
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