CN218887904U - Cubical switchboard with prevent mistake and close function - Google Patents
Cubical switchboard with prevent mistake and close function Download PDFInfo
- Publication number
- CN218887904U CN218887904U CN202220916146.0U CN202220916146U CN218887904U CN 218887904 U CN218887904 U CN 218887904U CN 202220916146 U CN202220916146 U CN 202220916146U CN 218887904 U CN218887904 U CN 218887904U
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- cabinet
- fume
- fume chamber
- sealing plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses a cubical switchboard with prevent mistake and close function relates to the electric power engineering field, including the cabinet body, the surface of the cabinet body is connected with the cabinet door, and the both sides top of the cabinet body is connected with six insulators respectively, and electrified detection circuitry is installed to inside one side of the cabinet body, and the inside opposite side of the cabinet body is installed and is blocked by mistake, and the internally mounted of the cabinet body has a plurality of wiring boards, and the both sides of the cabinet body all are connected with the fume chamber, and one side of two fume chambers all is connected with the ventilating board. The utility model discloses a leading truck, the electro-magnet, the sealing plug, the deep bead, the sealing washer, the telescopic link, spring and self-operated pressure regulating valve, the slope through leading truck and the inside one side of fume chamber is to the air current direction in daily use, reduce the windage and reduce the influence of structure to the air current, avoid the air current to get into the region between sealing plug and the leading truck to exert pressure to the sealing plug through setting up of deep bead simultaneously, effectively avoid high temperature high-pressure gas to reveal and cause the influence to peripheral personnel and facility.
Description
Technical Field
The utility model relates to an electric power engineering field specifically is a cubical switchboard with prevent mistake closed function.
Background
The switch cabinet is an electrical device, the outside line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, each branch circuit is arranged according to the requirement, such as an instrument, an automatic control, a motor magnetic switch, various alternating current contactors and the like, a mechanical anti-misoperation device is arranged between the switch in the switch cabinet and a grounding switch blade, namely, the anti-misoperation locking is realized, and the influence on the circuit caused by the electrified closing of the grounding switch blade is avoided.
The existing switch cabinet with the anti-misoperation function has the advantages that due to the fact that an internal circuit and an electric power facility are more and the space is crowded, a large amount of short-circuit current can be generated instantly when a circuit short circuit occurs, the short-circuit current can generate a large amount of high-temperature high-pressure gas when being generated, the high-temperature high-pressure gas easily penetrates through the ventilating board and is discharged to the outside to cause damage to peripheral electric power facilities and workers, the danger is high, the use is inconvenient, the rear surface of the ventilating board and the dust screen is covered with dust after the ventilating board and the dust screen are used for a long time, the ventilating board and the dust screen are easily blocked, the heat dissipation of the switch cabinet is influenced, heat in the cabinet body is accumulated, the aging of the internal structure is accelerated, the service life of the electric power facility in the switch cabinet is influenced, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a cubical switchboard with prevent mistake and close function to solve high temperature high-pressure gas and pass the ventilating board and reveal the technical problem who threatens peripheral personnel's facility and dust screen and ventilating board and be covered easily by the dust and lead to blockking up.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a cubical switchboard with prevent mistake and close function, includes the cabinet body, the surface connection of the cabinet body has the cabinet door, the both sides top of the cabinet body is connected with six insulators respectively, electrified detection circuitry is installed to inside one side of the cabinet body, the inside opposite side of the cabinet body is installed and is blocked by mistake, the internally mounted of the cabinet body has a plurality of wiring boards, the both sides of the cabinet body all are connected with the fume chamber, two one side of fume chamber all is connected with the ventilating board, two four dust screens are installed respectively to inside one side of fume chamber and the inside below of the cabinet body, the inside top of fume chamber is provided with the clearance subassembly, the inside of fume chamber is provided with prevents letting out the subassembly, and is a plurality of the wiring board is rectangular array form and distributes, and six the insulator distributes along cabinet body axis of ordinates central line mirror image.
Through adopting above-mentioned technical scheme, the clearance subassembly is carried the air current to the gas outlet through hose and shunt tubes after through the fan starts, later blow to dust screen and ventilating board through the gas outlet and blow away the dust that covers on both, thereby avoid in the dust gets into the ventilating cabinet because the air current blows to the external world by in the ventilating cabinet, the subassembly of preventing leaking loses pressure drive sealing plug through the spring and removes the cooperation sealing washer and block up the vent, lead to the sealing plug through the telescopic link simultaneously, so as to avoid high temperature high-pressure gas to pass the ventilating board and reveal and cause the influence to peripheral staff and electric power facility, later because the internal seal of cabinet makes the internal atmospheric pressure of cabinet sharply increase.
Further, the clearance subassembly is including installing in the fan of fume chamber one side top and installing in the motor of the inside below of fume chamber, the output of motor is connected with reciprocal lead screw, one side of reciprocal lead screw is connected with the linkage piece, the internal connection of linkage piece has the shunt tubes, one side of shunt tubes is connected with a plurality of gas outlets, the end of giving vent to anger of fan is connected with the hose, just the one end of hose is connected with the one end of shunt tubes.
Through adopting above-mentioned technical scheme, the fan starts the back and carries the air current to the gas outlet in through hose and shunt tubes, later through the gas outlet to dust screen and ventilating board blow and blow away the dust that covers on both, thereby because the air current is blown to the external world by in the fume chamber and is avoided the dust to get into in the fume chamber.
Furthermore, the leakage-proof assembly comprises two guide frames connected to the inside of the two fume hoods respectively and a self-operated pressure regulating valve installed at the top of the cabinet body, the two guide frames are internally provided with electromagnets and telescopic rods, the two telescopic rods are connected with sealing plugs and sealing plugs on one side of the outer surfaces of the sealing plugs, the two sealing plugs are provided with springs on the other side of the outer surfaces of the sealing plugs, and the two air baffles are connected to one side of the guide frames.
By adopting the technical scheme, when high-temperature high-pressure gas is generated by short circuit in the switch cabinet, the electromagnet is switched off or is demagnetized under the influence of the temperature of the high-temperature high-pressure gas, so that the spring loses pressure to drive the sealing plug to move to match with the sealing ring to block the vent hole, and meanwhile, the sealing plug is guided through the telescopic rod, so that the high-temperature high-pressure gas is prevented from passing through the ventilating board to be leaked to influence peripheral workers and electric power facilities.
Furthermore, linkage block and reciprocal lead screw threaded connection, just linkage block and fume chamber sliding connection.
Through adopting above-mentioned technical scheme, the motor starts the back output and drives reciprocal lead screw rotatory, thereby reciprocal lead screw rotation back drive linkage piece reciprocating motion from top to bottom makes a plurality of gas outlets reciprocating motion from top to bottom clear up whole ventilating board and dust screen.
Furthermore, one side of the inside of the fume hood is in a slope shape, and the sealing plug is matched with one side of the inside of the fume hood.
Through adopting above-mentioned technical scheme, the spring loses pressure drive sealing plug and removes cooperation sealing washer and blocks up the vent, leads the sealing plug through the telescopic link simultaneously to avoid high temperature high-pressure gas to pass the ventilating board and reveal and cause the influence to peripheral staff and electric power facility.
Further, the length of hose is greater than the length toward the multifilament pole, and is a plurality of the gas outlet equidistance distributes.
Through adopting above-mentioned technical scheme, the fan starts the back and carries the air current to the gas outlet through hose and shunt tubes in, later bloies to dust screen and ventilating board through the gas outlet and blows away the dust that covers on both, thereby because the air current is blown to the external world by in the fume chamber and is avoided the dust to get into in the fume chamber.
Furthermore, one side of the guide frame is triangular, and the two guide frames are distributed along the central line of the longitudinal axis of the cabinet body in a mirror image mode.
Through adopting above-mentioned technical scheme, the slope through leading truck and inside one side of fume chamber is to the air current direction in daily use, reduces the windage and reduces the influence of structure to the air current, avoids the air current to get into the regional interior sealing plug that exerts pressure between sealing plug and the leading truck through the setting of deep bead simultaneously.
To sum up, the utility model discloses mainly have following beneficial effect:
1. the utility model discloses a leading truck, the electro-magnet, the sealing plug, the deep bead, the sealing washer, the telescopic link, spring and formula of relying on oneself pressure regulating valve, lead to the air current through the slope of leading truck and fume chamber inside one side in daily use, reduce the influence of windage reduction structure to the air current, avoid the air current to get into the sealing plug to exert pressure in the region between sealing plug and the leading truck through the setting of deep bead simultaneously, the tripping operation makes the electro-magnet close when the short circuit produces high temperature high pressure gas in the cubical switchboard, or receive the influence of high temperature high pressure gas temperature to make the electro-magnet degauss, thereby make the spring lose the pressure drive sealing plug and remove the cooperation sealing washer and block up the vent, lead to the sealing plug through the telescopic link simultaneously, in order to avoid high temperature high pressure gas to pass the ventilating board and reveal and cause the influence to peripheral staff and electric power facility, later because the internal seal of cabinet makes the internal pressure of cabinet rise suddenly, formula of relying on pressure regulating valve core is pushed open by the atmospheric pressure and makes high temperature high pressure gas upwards discharge, thereby reduce the influence to peripheral staff and electric power facility, also can cause the external pipeline to discharge at formula of relying on pressure regulating valve top;
2. the utility model discloses a fan, including a motor, an end cap, a controller, and a cover plate, reciprocal lead screw, the hose, the linkage piece, shunt tubes and gas outlet, carry the air current to the gas outlet through hose and shunt tubes after the fan starts, later blow to dust screen and ventilating board through the gas outlet and blow away the dust that covers on both, thereby because the air current is blown to the external world by the fume chamber in and avoids the dust to get into the fume chamber in, the reciprocal lead screw of output drive is rotatory after the motor starts, thereby reciprocal movement makes a plurality of gas outlets reciprocal movement about reciprocal lead screw rotation back drive linkage piece clears up whole ventilating board and dust screen, effectively avoid ventilating board and dust screen to stop up the heat dissipation of influence cubical switchboard.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic sectional structure of the present invention;
fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention;
fig. 4 is a schematic structural view of the guide frame of the present invention;
fig. 5 is a schematic view of the cross-sectional structure of the guide frame of the present invention;
fig. 6 is a schematic view of the linkage block structure of the present invention.
In the figure: 1. a cabinet body; 2. a cabinet door; 3. an insulator; 4. a fume hood; 5. a ventilation board; 6. a dust screen; 7. cleaning the assembly; 701. a fan; 702. a motor; 703. a reciprocating screw rod; 704. a hose; 705. a linkage block; 706. a shunt tube; 707. an air outlet; 8. a leak-proof assembly; 801. a guide frame; 802. an electromagnet; 803. a sealing plug; 804. a wind deflector; 805. a seal ring; 806. a telescopic rod; 807. a spring; 808. a self-operated pressure regulating valve; 9. a live detection circuit; 10. locking by mistake; 11. a patch panel.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
The following describes an embodiment of the present invention according to its overall structure.
The utility model provides a cubical switchboard with prevent mistake and close function, as shown in figure 1, 2 and 3 are shown, including the cabinet body 1, the surface of the cabinet body 1 is connected with cabinet door 2, the both sides top of the cabinet body 1 is connected with six insulators 3 respectively, electrified detection circuitry 9 is installed to inside one side of the cabinet body 1, the inside opposite side of the cabinet body 1 is installed and is blocked by mistake 10, the internally mounted of the cabinet body 1 has a plurality of wiring boards 11, a plurality of wiring boards 11 are rectangular array form and distribute, and six insulators 3 distribute along cabinet body 1 axis of ordinates central line mirror image, the both sides of the cabinet body 1 all are connected with fume chamber 4, one side of two fume chamber 4 all is connected with ventilating board 5, four dust screens 6 are installed respectively to inside one side of two fume chamber 4 and the inside below of the cabinet body 1, the inside top of fume chamber 4 is provided with clearance subassembly 7, effectively avoid ventilating board 5 and dust screen 6 to influence the cubical switchboard heat dissipation, the inside of fume chamber 4 is provided with prevents letting out subassembly 8, effectively avoid high-temperature high-pressure gas to reveal and cause the influence to jam peripheral personnel and facility.
Referring to fig. 2, 3 and 6, the cleaning assembly 7 includes a fan 701 installed above one side of the fume hood 4 and a motor 702 installed below the inside of the fume hood 4, an output end of the motor 702 is connected with a reciprocating screw rod 703, one side of the reciprocating screw rod 703 is connected with a linkage block 705, the inside of the linkage block 705 is connected with a shunt pipe 706, one side of the shunt pipe 706 is connected with a plurality of air outlets 707, an air outlet end of the fan 701 is connected with a hose 704, one end of the hose 704 is connected with one end of the shunt pipe 706, the linkage block 705 is in threaded connection with the reciprocating screw rod 703, the linkage block 705 is in sliding connection with the fume hood 4, the length of the hose 704 is greater than that of the reciprocating screw rod 703, and the plurality of air outlets 707 are equidistantly distributed, so that the heat dissipation of the switch cabinet is effectively prevented from being influenced by the blockage of the ventilating board 5 and the dust screen 6.
Referring to fig. 2, 4 and 5, the leakage-proof assembly 8 includes two guiding frames 801 respectively connected to the inside of the two fume hoods 4 and a self-operated pressure regulating valve 808 installed at the top of the cabinet body 1, the internal installations of the two guiding frames 801 all include an electromagnet 802 and an expansion link 806, one ends of the two expansion links 806 are all connected with sealing plugs 803, one sides of the outer surfaces of the two sealing plugs 803 are all connected with sealing rings 805, the other sides of the outer surfaces of the two sealing plugs 803 are all provided with springs 807, one sides of the two guiding frames 801 are all connected with wind shields 804, one side of the inside of the fume hoods 4 is in a slope shape, and the sealing plugs 803 are matched with one side of the inside of the fume hoods 4, one side of the guiding frames 801 is in a triangle shape, and the two guiding frames 801 are distributed along the central line of the longitudinal axis of the cabinet body 1 in a mirror image manner, thereby effectively avoiding the leakage of high-temperature and high-pressure gas from affecting peripheral personnel and facilities.
The implementation principle of the embodiment is as follows: firstly, when the ventilation board 5 and the dust screen 6 need to be cleaned, a worker turns on the fan 701 and the motor 702, the fan 701 is started and then conveys airflow to the air outlet 707 through the hose 704 and the shunt pipe 706, then the dust screen 6 and the ventilation board 5 are blown away by blowing air through the air outlet 707 to blow dust covering both, as the air flow is blown to the outside from the inside of the fume hood 4 so as to prevent dust from entering the fume hood 4, the output end of the motor 702 drives the reciprocating screw rod 703 to rotate after being started, the reciprocating screw rod 703 drives the linkage block 705 to move up and down in a reciprocating way after rotating so as to enable the plurality of air outlets 707 to move up and down in a reciprocating way so as to clean the whole fume hood 5 and the dust screen 6, in daily use, the guide frame 801 and the slope on one side inside the fume hood 4 guide the airflow, reduce the wind resistance, reduce the influence of the structure on the airflow, meanwhile, the arrangement of the wind shield 804 prevents airflow from entering the area between the sealing plug 803 and the guide frame 801 to press the sealing plug 803, when high-temperature and high-pressure gas is generated by short circuit in the switch cabinet, the electromagnet 802 is switched off by tripping, or the electromagnet 802 is demagnetized under the influence of the temperature of the high-temperature and high-pressure gas, so that the spring 807 loses pressure to drive the sealing plug 803 to move to match with the sealing ring 805 to block the vent, meanwhile, the telescopic rod 806 is used for guiding the sealing plug 803 so as to prevent high-temperature and high-pressure gas from passing through the ventilation board 5 and leaking to affect peripheral workers and electric facilities, then the internal pressure of the cabinet body 1 is increased sharply due to the internal sealing of the cabinet body 1, the valve core of the self-operated pressure regulating valve 808 is pushed open due to the influence of the air pressure, so that the high-temperature and high-pressure gas is discharged upwards, therefore, the influence on peripheral workers and electric facilities is reduced, and the workers can also convey high-temperature and high-pressure gas to a safe place for discharge through an external pipeline at the top of the self-operated pressure regulating valve 808.
While embodiments of the invention have been illustrated and described, it is not intended to limit the invention to the exact construction and operation illustrated and described, and that various other features, structures, materials, or characteristics may be substituted for those illustrated and described without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a cubical switchboard with prevent mistake and close function, includes the cabinet body (1), its characterized in that: the utility model discloses a cabinet, including the cabinet body, the surface of the cabinet body (1) is connected with cabinet door (2), the both sides top of the cabinet body (1) is connected with six insulators (3) respectively, electrified detection circuitry (9) are installed to inside one side of the cabinet body (1), mistake shutting (10) are installed to the inside opposite side of the cabinet body (1), the internally mounted of the cabinet body (1) has a plurality of wiring boards (11), the both sides of the cabinet body (1) all are connected with fume chamber (4), two one side of fume chamber (4) all is connected with ventilating board (5), two four dust screens (6) are installed respectively to inside one side of fume chamber (4) and the inside below of the cabinet body (1), the inside top of fume chamber (4) is provided with clearance subassembly (7), the inside of fume chamber (4) is provided with and prevents leaking subassembly (8).
2. The switch cabinet with the anti-misoperation function according to claim 1, wherein: clearance subassembly (7) are including installing fan (701) in fume chamber (4) one side top and installing in motor (702) of the inside below of fume chamber (4), the output of motor (702) is connected with reciprocal lead screw (703), one side of reciprocal lead screw (703) is connected with linkage block (705), the internal connection of linkage block (705) has shunt tubes (706), one side of shunt tubes (706) is connected with a plurality of gas outlets (707), the end of giving vent to anger of fan (701) is connected with hose (704), just the one end of hose (704) is connected with the one end of shunt tubes (706).
3. The switch cabinet with the anti-misoperation function according to claim 1, wherein: prevent letting out subassembly (8) including connecting respectively in two inside leading truck (801) of two fume chamber (4) and installing in self-operated pressure regulating valve (808) at cabinet body (1) top, two the internally mounted of leading truck (801) all has electro-magnet (802) and telescopic link (806), two the one end of telescopic link (806) all is connected with sealing plug (803), two surface one side of sealing plug (803) all is connected with sealing washer (805), two the surface opposite side of sealing plug (803) all is provided with spring (807), two one side of leading truck (801) all is connected with deep bead (804).
4. The switch cabinet with the anti-misoperation function according to claim 2, wherein: the linkage block (705) is in threaded connection with the reciprocating screw rod (703), and the linkage block (705) is in sliding connection with the fume hood (4).
5. The switch cabinet with the anti-misoperation function according to claim 3, wherein: one side of the inside of the fume hood (4) is in a slope shape, and the sealing plug (803) is matched with one side of the inside of the fume hood (4).
6. The switch cabinet with the anti-misoperation function according to claim 2, wherein: the length of the hose (704) is greater than that of the reciprocating screw rod (703), and the air outlets (707) are distributed at equal intervals.
7. The switch cabinet with the anti-misoperation function according to claim 5, wherein: one side of each guide frame (801) is triangular, and the two guide frames (801) are distributed in a mirror image mode along the center line of the longitudinal axis of the cabinet body (1).
8. The switch cabinet with the anti-misoperation function according to claim 1, wherein: a plurality of wiring board (11) are the distribution of rectangle array form, and six insulator (3) are along cabinet body (1) axis of ordinates central line mirror image distribution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220916146.0U CN218887904U (en) | 2022-04-20 | 2022-04-20 | Cubical switchboard with prevent mistake and close function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220916146.0U CN218887904U (en) | 2022-04-20 | 2022-04-20 | Cubical switchboard with prevent mistake and close function |
Publications (1)
Publication Number | Publication Date |
---|---|
CN218887904U true CN218887904U (en) | 2023-04-18 |
Family
ID=85977259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202220916146.0U Active CN218887904U (en) | 2022-04-20 | 2022-04-20 | Cubical switchboard with prevent mistake and close function |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN218887904U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117013418A (en) * | 2023-08-07 | 2023-11-07 | 南通旭泰自动化设备有限公司 | High-voltage switch GIS monitoring device with safety protection structure |
-
2022
- 2022-04-20 CN CN202220916146.0U patent/CN218887904U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117013418A (en) * | 2023-08-07 | 2023-11-07 | 南通旭泰自动化设备有限公司 | High-voltage switch GIS monitoring device with safety protection structure |
CN117013418B (en) * | 2023-08-07 | 2024-04-26 | 南通旭泰自动化设备有限公司 | High-voltage switch GIS monitoring device with safety protection structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN218887904U (en) | Cubical switchboard with prevent mistake and close function | |
CN211958368U (en) | Modular switch cabinet | |
CN110212437B (en) | From heat dissipation type block terminal for electric power engineering transformer substation | |
CN114784675A (en) | Cubical switchboard with prevent mistake and close function | |
CN210694635U (en) | Automatic ventilation unit of electrical control cabinet | |
CN111933481A (en) | Switching-on and switching-off structure of outdoor high-voltage vacuum circuit breaker | |
CN212210186U (en) | Dampproofing high tension switchgear of heat dissipation | |
CN219498712U (en) | Dustproof ring main unit | |
CN210092681U (en) | Intelligent distribution box | |
CN116526341A (en) | Switch cabinet with protection function and use method thereof | |
CN111313244A (en) | High-voltage switch cabinet adopting air cooling and water cooling dual cooling mode | |
CN212230332U (en) | Switching-on and switching-off structure of outdoor high-voltage vacuum circuit breaker | |
CN209929806U (en) | High-low voltage complete switch cabinet with refrigeration and heat dissipation functions | |
CN210985282U (en) | Low-voltage switchgear with dust removal function | |
CN218102299U (en) | High-voltage switch equipment for intelligent voltage transformer | |
CN112885635B (en) | Indoor high-voltage grounding switch | |
CN221783628U (en) | Static electricity eliminating device of electric automation cabinet | |
CN221466509U (en) | Novel special protective housing of circuit breaker | |
CN220915324U (en) | Image pickup apparatus | |
CN210608207U (en) | GGD AC low-voltage dustproof power distribution cabinet | |
CN215114933U (en) | Switch cabinet monitoring device | |
CN114843912A (en) | Heat dissipation switch cabinet | |
CN220985162U (en) | Environmental interference protection structure | |
CN210985396U (en) | Low-voltage distribution cabinet convenient to air flow | |
CN210468587U (en) | GKFW type 10kV looped network switchgear |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |