CN114667008B - Computer lab equipment management device of thing networking - Google Patents
Computer lab equipment management device of thing networking Download PDFInfo
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- CN114667008B CN114667008B CN202210072535.4A CN202210072535A CN114667008B CN 114667008 B CN114667008 B CN 114667008B CN 202210072535 A CN202210072535 A CN 202210072535A CN 114667008 B CN114667008 B CN 114667008B
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a machine room equipment management device of the Internet of things, relates to the technical field of equipment management of the Internet of things of an electric power system, and solves the problem that the interior of the machine room equipment management device is mostly of a fixed and integrated structure, so that an integral inserting plate cannot be separated from the interior. The utility model provides a computer lab equipment management device of thing networking, includes the fixed plate, the fixed bottom plate that is provided with of lower extreme of going up the fixed plate, the front end rotation between last fixed plate and the side fixed plate is provided with the revolving door, the fixed transparent window that is provided with in centre department of revolving door, all be provided with T type groove around the both sides of going up the fixed plate terminal surface. According to the invention, the two T-shaped grooves are fixedly arranged on two sides of the upper end of the upper fixing plate, so that the T-shaped grooves between the two upper fixing plates can be communicated and matched, the integral I-shaped inserting block is inserted into the two T-shaped grooves, and the insertion and assembly between the two T-shaped grooves and the I-shaped inserting block realizes the insertion and fixation between the two upper fixing plates.
Description
Technical Field
The invention relates to the technical field of equipment management of the Internet of things of a power system, in particular to a machine room equipment management device of the Internet of things.
Background
Along with the rapid development of social economy, an electric power system is an electric energy production and consumption system which is composed of links of a power plant, a power transmission and transformation circuit, a power supply and distribution station, electricity consumption and the like, and has the functions of converting primary energy in nature into electric energy through a power generation power device and supplying the electric energy to each user through power transmission, transformation and distribution. The modern electric power system needs real-time management and control of the internet of things equipment, and the development of the internet of things makes a computer room used as a storage place of core equipment such as network equipment, a host server, data storage equipment, network safety equipment and the like increasingly show important positions, so that the internal internet of things equipment needs to be protected and managed by placing an installation cabinet.
However, the conventional machine room equipment management device has a fixed and integrated structure, so that the whole inserting plate cannot be separated from the interior; the distance between the inserting plates cannot be quickly adjusted due to the existing structure, so that network connection machines with different sizes cannot be carried between the inserting plates; the two upper fixing plates cannot be combined, so that the whole upper fixing plate, the side fixing plates and the fixing bottom plate are easy to be stressed to influence the installation deflection. Therefore, the existing requirements are not met, and a machine room equipment management device of the Internet of things is provided for the purpose.
Disclosure of Invention
The invention aims to provide a machine room equipment management device of the Internet of things, which aims to solve the problem that the interior of the machine room equipment management device proposed in the background art is mostly of a fixed integrated structure, so that an integral inserting plate cannot be separated from the interior; the distance between the inserting plates cannot be quickly adjusted due to the existing structure, so that network connection machines with different sizes cannot be carried between the inserting plates; the two upper fixing plates cannot be combined, so that the problems of mounting deflection and the like caused by the extremely easy stress of the integral upper fixing plates, the side fixing plates and the fixing bottom plate are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a computer lab equipment management device of thing networking, includes the fixed plate, the fixed bottom plate that is provided with of lower extreme of going up the fixed plate, the front end rotation between fixed plate and the side fixed plate is provided with the revolving door, the fixed transparent window that is provided with in centre department of revolving door, all be provided with T type groove around the both sides of going up the fixed plate terminal surface, two the T type groove cooperation UNICOM between the fixed plate is gone up, two the inside upper end cartridge in T type groove is provided with the I type inserted block, the fixed welding of upper end of I type inserted block has U type pull ring, go up the fixed plate and the inside both sides of fixed bottom plate all fixedly welded with support longboard, two the cartridge is provided with nine inserted plates between the support longboard, the both sides that support the longboard all activity is provided with nine L type dogs, the upper and lower both sides of L type dog rear end all are connected the activity and are provided with first joint piece, the rear side of L type stopper is fixed with horizontal elongated slot.
Preferably, the rotary matching block is fixedly welded with the end face outside the support long plate, and the two rotary matching blocks are movably connected with the L-shaped stop block in a rotary mode.
Preferably, the front end of the L-shaped stop block is clamped between two first clamping blocks, and the two first clamping blocks are fixedly arranged at the front end of the long track groove.
Preferably, the long track grooves are transversely fixed in the supporting long plate in the front-back direction, and the two sides of the inserting plate are inserted in the long track grooves on the supporting long plate.
Preferably, the middle part inside the first clamping block is fixedly provided with an installation cavity, the middle part inside the installation cavity is connected and provided with an extension spring, and the outer end of the extension spring is connected and provided with a second clamping block.
Preferably, the upper end and the lower end of the L-shaped stop block are fixedly provided with clamping grooves, and the second clamping block is clamped in the clamping grooves.
Preferably, the upper end and the lower end of the inner side of the L-shaped stop block are fixedly provided with inclined end faces, and the two sides of the second clamping block are fixedly provided with inclined end faces.
Preferably, a movable cavity is fixedly arranged in the middle of the lower end of the long track groove, an extension spring is arranged in the movable cavity in a connected mode, a clamping groove is arranged in the upper end of the extension spring in a connected mode, an inner cavity is fixedly arranged at the upper end of the clamping groove, and a rolling wheel is rotatably and movably arranged in the inner cavity.
Preferably, cylindrical grooves are fixedly formed in two sides of the inner cavity, a rotating shaft is movably arranged between the two cylindrical grooves in a rotating mode, the rotating shaft penetrates through the middle of the rolling wheel, the rolling wheel and the rotating shaft are in movable fit in a rotating mode, matching long grooves are formed in the front side and the rear side of the lower end of the inserting plate in a penetrating mode, and the upper end of the rolling wheel is movably located in the matching long grooves in a rotating mode.
Preferably, the upper end of the inserting plate is fixedly provided with a network connector, two sides of the front end of the inserting plate are fixedly welded with stop plates, and the network connector is in limit fit with the stop plates.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, two T-shaped grooves are fixedly formed in two sides of the upper end of the upper fixing plate, so that the T-shaped grooves between the two upper fixing plates can be communicated and matched, at the moment, the whole I-shaped inserting block is inserted into the two T-shaped grooves, the insertion and fixation between the two T-shaped grooves and the I-shaped inserting block are realized, the U-shaped pull ring is fixedly welded on the I-shaped inserting block, a worker can pull the I-shaped inserting block out of the T-shaped grooves on the upper fixing plate by pulling the U-shaped pull ring, the matched and fixed connection between the two upper fixing plates is eliminated, the matched long grooves are fixedly formed in two sides of the lower end of the inserting plate, the lower end of the inserting plate can be matched with the rolling wheel in a rolling way, the rolling fit between the rolling wheel and the matched long grooves on the inserting plate is greatly improved in the moving cavity, the rolling fit between the rolling wheel and the matched long grooves on the inserting plate is greatly improved, the rolling fit between the rolling wheel and the rolling wheel is greatly improved before insertion, the rolling fit between the rolling wheel and the moving wheel is not matched with the moving wheel when the rolling wheel is not matched with the matched long grooves on the moving plate in the rail, and the rolling wheel is not arranged in the moving way, and the rolling machine is not adjusted;
2. according to the invention, two support long plates are fixedly welded in the space between the upper fixing plate and the fixing bottom plate, four inserting plates are inserted between the two support long plates, nine track long grooves are fixedly arranged in the support long plates, the whole support long plates can be inserted in the track long grooves on the support long plates, an L-shaped stop block is movably arranged at the opening of the front end of the track long grooves on the support long plates, the whole L-shaped stop block can have a stop effect on the front and rear movements of the inserting plates, two rotary matching blocks are fixedly arranged on one side end surface of the support long plates, the rear ends of the L-shaped stop blocks are in rotary movable connection with the rotary matching blocks, first clamping blocks are arranged at the upper end and the lower end of the L-shaped stop blocks, the two first clamping blocks can perform clamping action on the L-shaped stop blocks, an installation cavity is fixedly arranged in the first clamping blocks, and an extension spring is arranged in the installation cavity, the extension spring can reversely push the second clamping blocks, the second clamping blocks can be clamped in the L-shaped stop blocks on the support long plates, and the L-shaped stop blocks can further improve the performance of the L-shaped stop blocks due to the fact that the L-shaped stop blocks are arranged in the L-shaped stop blocks.
Drawings
FIG. 1 is a schematic perspective view of the whole structure of the present invention;
FIG. 2 is an enlarged perspective view of the invention at A in FIG. 1;
FIG. 3 is a perspective view showing the inside of the upper fixing plate of FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the perspective structure of the present invention at B in FIG. 3;
FIG. 5 is a side cutaway view of the three-dimensional structure of FIG. 4 in accordance with the present invention;
FIG. 6 is a front partial cutaway view of the entirety of the present invention;
fig. 7 is a front cut-away view of the invention at C in fig. 3.
In the figure: 1. an upper fixing plate; 2. a side fixing plate; 3. a revolving door; 4. a transparent window; 5. a T-shaped groove; 6. i-shaped plug blocks; 7. a U-shaped pull ring; 8. a network connection machine; 9. an inserting plate; 10. supporting the long plate; 11. a stop plate; 12. a fixed bottom plate; 13. rotating the mating block; 14. an L-shaped stop block; 15. a first clamping block; 16. a mounting cavity; 17. a stretching spring; 18. a second clamping block; 19. a track elongated slot; 20. a clamping groove; 21. an inner cavity; 22. a rotation shaft; 23. a rolling wheel; 24. a mating elongated slot; 25. a movable cavity; 26. a stretching spring; 27. a cylindrical groove; 28. and an inclined end surface.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 7, an embodiment of the present invention provides: the utility model provides a computer lab equipment management device of thing networking, including last fixed plate 1, the fixed bottom plate 12 that is provided with of lower extreme of going up fixed plate 1, the front end rotation between going up fixed plate 1 and the side fixed plate 2 is provided with revolving door 3, the fixed transparent window 4 that is provided with in centre department of revolving door 3, both sides of going up fixed plate 1 terminal surface all are provided with T type groove 5 around, T type groove 5 cooperation UNICOM between two last fixed plates 1, the inside upper end cartridge of two T type grooves 5 is provided with I type inserted block 6, I type inserted block 6's upper end fixed welding has U type pull ring 7, go up fixed plate 1 and the inside both sides of fixed bottom plate 12 all fixed welding have support longboard 10, the cartridge is provided with nine inserted plate 9 between two support longboard 10, the both sides of support longboard 10 all activity are provided with nine L type dog 14, the upper and lower both sides of L type dog 14 rear end all activity are provided with rotatory cooperation piece 13, the upper and lower both sides of L type dog 14 front end all connect the activity and are provided with first joint piece 15, L type dog 14 rear side fixed with the slot 19.
Further, the rotary matching block 13 is fixedly welded to the end face outside the support long plate 10, the two rotary matching blocks 13 and the L-shaped stop block 14 are movably connected through rotation, and the movable rotatability between the rotary matching block 13 and the L-shaped stop block 14 can clamp the whole L-shaped stop block 14 between the two first clamping blocks 15.
Further, the front end of the L-shaped stopper 14 is clamped between the two first clamping blocks 15, and the two first clamping blocks 15 are fixedly positioned at the front ends of the track long grooves 19.
Further, the long rail grooves 19 are fixed in the long support plate 10 in the front-back transverse direction, and two sides of the inserting plate 9 are inserted in the long rail grooves 19 on the long support plate 10.
Further, the middle part inside the first clamping block 15 is fixedly provided with a mounting cavity 16, the middle part inside the mounting cavity 16 is connected and provided with an extension spring 17, the outer end of the extension spring 17 is connected and provided with a second clamping block 18, and the extension elasticity of the extension spring 17 can clamp the whole second clamping block 18 in the clamping groove 20 on the L-shaped stop block 14, so that the fixity of the clamping groove 20 to the whole L-shaped stop block 14 is improved.
Further, the upper end and the lower end of the L-shaped stop block 14 are fixedly provided with a clamping groove 20, and the second clamping block 18 is clamped in the clamping groove 20.
Further, the upper end and the lower end of the inner side of the L-shaped stop block 14 are fixedly provided with inclined end faces 28, two sides of the clamping block 18 are fixedly provided with inclined end faces, and the second clamping block 18 and the inclined end faces on the second clamping block 18 are in movable fit, so that the L-shaped stop block 14 can be movably clamped between the two first clamping blocks 15.
Further, a movable cavity 25 is fixedly arranged in the middle of the lower end of the long track groove 19, an extension spring 26 is arranged in the movable cavity 25 in an internal connection mode, a clamping groove 20 is arranged in an upper end of the extension spring 26 in a connection mode, an inner cavity 21 is fixedly arranged at the upper end of the clamping groove 20, a rolling wheel 23 is rotatably and movably arranged in the inner cavity 21, and the movable cavity 25 is beneficial to the mobility of the whole clamping groove 20.
Further, cylindrical grooves 27 are fixedly formed in two sides of the inner cavity 21, a rotary shaft 22 is movably and rotatably arranged between the two cylindrical grooves 27, the rotary shaft 22 penetrates through the middle of the rolling wheel 23, the rolling wheel 23 and the rotary shaft 22 are in rotary and movable fit, a matched long groove 24 is arranged in a penetrating mode in front of and behind two sides of the lower end of the inserting plate 9, and the upper end of the rolling wheel 23 is rotatably and movably located in the matched long groove 24.
Further, the upper end of the inserting plate 9 is fixedly provided with a network connector 8, two sides of the front end of the inserting plate 9 are fixedly welded with stop plates 11, and the network connector 8 is in limit fit with the stop plates 11.
Working principle: when the fixing device is used, two T-shaped grooves 5 are fixedly formed in two sides of the upper end of the upper fixing plate 1, so that the T-shaped grooves 5 between the two upper fixing plates 1 can be communicated and matched, at the moment, the integral I-shaped insertion block 6 is inserted into the two T-shaped grooves 5, the insertion and fixation between the two upper fixing plates 1 is realized through the insertion and assembly between the two T-shaped grooves 5 and the I-shaped insertion block 6, and a U-shaped pull ring 7 is fixedly welded on the I-shaped insertion block 6, so that a worker can pull the I-shaped insertion block 6 out of the T-shaped grooves 5 on the upper fixing plates 1 by pulling the U-shaped pull ring 7, and the matched and fixed connection between the two upper fixing plates 1 is relieved;
through fixedly welding two support long plates 10 in the interior between the upper fixed plate 1 and the fixed bottom plate 12, four inserting plates 9 are arranged between the two support long plates 10 in an inserting way, nine track long grooves 19 are fixedly arranged in the support long plates 10, the whole support long plates 10 can be inserted in the track long grooves 19 on the support long plates 10, an L-shaped stop block 14 is movably arranged at the opening of the front end of the track long grooves 19 on the support long plates 10, the whole L-shaped stop block 14 can have a stop effect on the front and rear movement of the inserting plates 9, two rotary matching blocks 13 are fixedly arranged on one side end surface of the support long plates 10, the rear ends of the L-shaped stop blocks 14 are in rotary movable connection with the rotary matching blocks 13, first clamping blocks 15 are arranged at the upper end and the lower end of the L-shaped stop blocks 14, the two first clamping blocks 15 can perform clamping action on the L-shaped stop blocks 14, an extension spring 17 is movably arranged at the opening of the front end of the track long grooves 19 on the support long plates 10, the extension spring 17 can push second clamping blocks 18 to move back to the second clamping blocks 18, and the L-shaped stop blocks 18 can be further arranged in the L-shaped stop blocks 14 in a movable way, and the L-shaped stop blocks 18 can be further fixed through the opposite clamping action between the L-shaped stop blocks 18 and the L-shaped stop blocks 14;
through the fixed cooperation elongated slot 24 that sets up in the both sides of the board 9 lower extreme of inserting for board 9 lower extreme can roll the cooperation with the wheel 23, through the fixed a plurality of movable chambers 25 that set up in the inside lower extreme of track elongated slot 19, set up extension spring 26 and joint groove 20 in movable chamber 25 internal connection, the horizontal mobility around the board 9 has been greatly improved to the roll cooperation between the cooperation elongated slot 24 on board 23 and the board 9, the elasticity through extension spring 26 has very big improved holistic joint groove 20 and the cooperation movable action of wheel 23, and then make the difficult card of wheel 23 dead when rolling, the setting of above can make the board 9 cartridge in nine different track elongated slots 19, thereby adjust the distance between two boards 9, make the network connection machine 8 of different models can be carried on the board 9.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. Computer lab equipment management device of thing networking, including last fixed plate (1), its characterized in that: the upper fixing plate (1), fixed bottom plate (12) is fixedly arranged at the lower end of the upper fixing plate (1), revolving door (3) is rotatably arranged at the front end between the upper fixing plate (1) and the side fixing plate (2), transparent windows (4) are fixedly arranged at the middle of the revolving door (3), T-shaped grooves (5) are respectively arranged at the front and back sides of the end face of the upper fixing plate (1), the T-shaped grooves (5) between the two upper fixing plates (1) are matched and communicated, I-shaped inserting blocks (6) are respectively arranged at the upper ends of the inner parts of the T-shaped grooves (5) in an inserting manner, U-shaped pull rings (7) are fixedly welded at the upper ends of the I-shaped inserting blocks (6), supporting long plates (10) are fixedly welded at the two inner sides of the upper fixing plate (1) and the fixed bottom plate (12), nine inserting blocks (9) are respectively arranged between the two supporting long plates (10), nine L-shaped blocks (14) are respectively movably arranged at the two sides of the supporting long plates (10), a first side of the two L-shaped blocks (14) are respectively connected with a movable side stop block (19), and two side stop blocks (14) are respectively arranged at the two sides of the upper end of the upper fixing plate (14) in a sliding manner;
the front end of the L-shaped stop block (14) is clamped between the two first clamping blocks (15), and the two first clamping blocks (15) are fixedly arranged at the front end of the track long groove (19);
an installation cavity (16) is fixedly arranged in the middle of the inside of the first clamping block (15), an extension spring (17) is connected and arranged in the middle of the inside of the installation cavity (16), and a second clamping block (18) is connected and arranged at the outer end of the extension spring (17);
the upper end and the lower end of the L-shaped stop block (14) are fixedly provided with clamping grooves (20), and the second clamping blocks (18) are clamped in the clamping grooves (20).
2. The machine room equipment management device of the internet of things according to claim 1, wherein: the rotary matching blocks (13) are fixedly welded with the end faces outside the support long plates (10), and the two rotary matching blocks (13) are movably connected with the L-shaped stop blocks (14) in a rotary mode.
3. The machine room equipment management device of the internet of things according to claim 1, wherein: the track long groove (19) is fixedly arranged in the support long plate (10) in the front-back transverse direction, and two sides of the inserting plate (9) are inserted into the track long groove (19) on the support long plate (10).
4. The machine room equipment management device of the internet of things according to claim 1, wherein: oblique end faces (28) are fixedly arranged at the upper end and the lower end of the inner side of the L-shaped stop block (14), and oblique end faces are fixedly arranged at the two sides of the second clamping block (18).
5. The machine room equipment management device of the internet of things according to claim 1, wherein: the middle of track elongated slot (19) lower extreme department is fixed and is provided with movable chamber (25), movable chamber (25) internal connection is provided with extension spring (26), the upper end connection of extension spring (26) is provided with joint groove (20), the fixed inner chamber (21) that is provided with in upper end of joint groove (20), the inside rotary motion of inner chamber (21) is provided with rolling wheel (23).
6. The internet of things machine room equipment management device according to claim 5, wherein: the utility model discloses a rotary table is characterized in that cylindrical grooves (27) are fixedly arranged on two sides of the inner cavity (21), a rotary shaft (22) is movably arranged between the cylindrical grooves (27), the rotary shaft (22) penetrates through the middle of a rolling wheel (23), the rolling wheel (23) and the rotary shaft (22) are in rotary movable fit, a matched long groove (24) is arranged on two sides of the lower end of the inserting plate (9) in a penetrating manner, and the upper end of the rolling wheel (23) is rotatably and movably arranged in the matched long groove (24).
7. The machine room equipment management device of the internet of things according to claim 1, wherein: the upper end of the inserting plate (9) is fixedly provided with a network connector (8), two sides of the front end of the inserting plate (9) are fixedly welded with stop plates (11), and the network connector (8) is in limit fit with the stop plates (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210072535.4A CN114667008B (en) | 2022-01-21 | 2022-01-21 | Computer lab equipment management device of thing networking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210072535.4A CN114667008B (en) | 2022-01-21 | 2022-01-21 | Computer lab equipment management device of thing networking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114667008A CN114667008A (en) | 2022-06-24 |
| CN114667008B true CN114667008B (en) | 2023-10-13 |
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| CN202210072535.4A Active CN114667008B (en) | 2022-01-21 | 2022-01-21 | Computer lab equipment management device of thing networking |
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| CN111557466A (en) * | 2020-05-11 | 2020-08-21 | 合肥岸鲁意科技有限公司 | Conveyer is used in tobacco drying process |
| CN111668719A (en) * | 2020-06-03 | 2020-09-15 | 浙江晨峰电力有限公司 | Multifunctional protective distribution box |
| CN212752978U (en) * | 2020-09-04 | 2021-03-19 | 广东睿江云计算股份有限公司 | Server cabinet with adjustable internal space |
| CN112436947A (en) * | 2020-11-10 | 2021-03-02 | 广州融益科技有限公司 | Computer network information safety device for teaching |
| CN214102016U (en) * | 2020-12-29 | 2021-08-31 | 杭州吉易物联科技有限公司 | Elevator thing networking supervisory control case |
| CN214567698U (en) * | 2021-03-26 | 2021-11-02 | 天长市恒威新能源有限公司 | Dampproofing strorage device of electric motor car lithium cell |
| CN113572052A (en) * | 2021-09-18 | 2021-10-29 | 徐州中周输配电设备有限公司 | Energy-saving control cabinet of air compressor |
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