CN111817166A - Prevention of seepage water power-off protection's cubical switchboard - Google Patents
Prevention of seepage water power-off protection's cubical switchboard Download PDFInfo
- Publication number
- CN111817166A CN111817166A CN202010730997.1A CN202010730997A CN111817166A CN 111817166 A CN111817166 A CN 111817166A CN 202010730997 A CN202010730997 A CN 202010730997A CN 111817166 A CN111817166 A CN 111817166A
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- sliding
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 230000002265 prevention Effects 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses a water seepage prevention power-off protection switch cabinet which comprises a waterproof shell, wherein a containing cavity is arranged in the waterproof shell in a penetrating manner, a main control cabinet is placed in the containing cavity, a sealing groove is communicated in the left wall of the containing cavity, an external wire penetrating through the left side surface of the waterproof shell is arranged in the left wall of the sealing groove, and a connector is fixedly arranged on the right side surface of the external wire; the invention has simple structure and convenient use, detects the depth of accumulated water through the buoyancy ball, opens the water inlet groove when the depth of the accumulated water is higher than a certain value, so that the accumulated water can flow into the protective shell through the water inlet groove, and prevents the accumulated water from entering the main control cabinet to cause damage to circuits in the main control cabinet. Meanwhile, the main control cabinet and the outer line can be separated through the linkage device, the outer line is pulled into the sealing groove to be sealed while the main control cabinet is powered off, and accumulated water is prevented from being in contact with the outer line, so that the accumulated water is electrified, and the threat to a human body is prevented.
Description
Technical Field
The invention relates to the technical field of distribution switch cabinets, in particular to a switch cabinet with water seepage prevention and power failure protection functions.
Background
High-low voltage complete set switch cabinet all exists in every building to basically all set up in the place that the elevation is lower such as first floor or basement, in case take place phenomenons such as infiltration, leak, make ponding get into the circuit of damage the inside in the switch cabinet very easily, and prior art all designs the switch cabinet for waterproof, but this kind of mode has the effect to a small amount of infiltration phenomena, but just hardly plays help in the face of the problem of intaking in a large amount such as flood, because electrified and the voltage is higher in the switch cabinet simultaneously, if contact with ponding, can make ponding electrified, threaten to the people of still being in water.
Disclosure of Invention
The invention aims to provide a switch cabinet with water seepage prevention and power-off protection, which is used for overcoming the defects in the prior art.
The invention relates to a switch cabinet with water seepage prevention and power failure protection functions, which comprises a waterproof shell, wherein a containing cavity is arranged in the waterproof shell in a penetrating manner, a main control cabinet is placed in the containing cavity, a sealing groove is arranged in the left wall of the containing cavity in a communicating manner, an external wire penetrating through the left side surface of the waterproof shell is arranged in the left wall of the sealing groove, a connector is fixedly arranged on the right side surface of the external wire, the external wire can be connected with the main control cabinet through the connector, a first moving groove is arranged in the bottom wall of the sealing groove in a communicating manner, a sealing plate is connected in the first moving groove in a sliding manner, first rubber water stop strips are arranged on the left wall and the right wall of the sealing plate, the bottom surface of the sealing plate is fixedly connected with the bottom wall of the first moving groove through a first spring, a first rotating cavity is arranged in the bottom wall of the sealing groove on the left side, a first moving block is connected to the threaded shaft in a threaded manner, a connecting rod is fixedly arranged on the top surface of the first moving block, the connecting rod extends into the sealing groove and is fixedly connected with a sleeve fixedly arranged on the outer wire, first slide rails are symmetrically arranged in the front wall and the rear wall of the first rotating cavity, a second moving block is connected in the first slide rails in a sliding manner, the second moving block is fixedly connected with the front wall and the rear wall of the first moving block, a water inlet groove is communicated with the bottom wall of the accommodating cavity, a second moving groove is communicated with the left wall of the water inlet groove, a baffle is connected in the second moving groove in a sliding manner, a second rotating cavity is arranged below the second moving groove, a first rotating shaft is rotatably connected between the left wall and the right wall of the second rotating cavity, a take-up pulley is fixedly arranged on the first rotating shaft, a first steel cable is fixedly arranged on the take-up pulley, and the first steel cable is, the second rotates the intracavity and is equipped with and can control the starting drive that the baffle was opened, the second rotates the chamber left side and is equipped with and can control the connector with the linkage device of master control cabinet disconnection.
Optionally, the starting device comprises a first gear fixedly arranged on the first rotating shaft, a water level groove is formed in the left side and the right side of the lower portion of the second rotating cavity in a penetrating mode, a short rack is connected to the top wall of the water level groove in a sliding mode, the short rack extends into the second rotating cavity and is meshed with the front tooth face of the first gear, the top face of the short rack is fixedly connected with the top wall of the second rotating cavity through a second steel cable, and a buoyancy ball is fixedly arranged at the bottom end of the short rack.
Optionally, a first linkage cavity is arranged on the left side of the second rotation cavity, the linkage device comprises a water receiving box slidably connected with the first linkage cavity, the bottom surface of the water receiving box is fixedly connected with the bottom wall of the first linkage cavity through a second spring, second slide rails are symmetrically arranged in the left wall and the right wall of the first linkage cavity, a third moving block is slidably connected with the second slide rails, the third moving block is fixedly connected with the water receiving box, a first slide groove is formed in the left wall of the second rotation cavity, a starting block is slidably connected with the first slide groove, the left wall of the starting block is fixedly connected with the left wall of the first slide groove through a third spring, the first linkage cavity is communicated with the water inlet groove through a water inlet pipe, a second gear is fixedly arranged on the threaded shaft, and a second slide groove is communicated with the bottom wall of the first rotation cavity, the safety device comprises a first sliding groove, a second sliding groove, a first gear, a second gear, a third sliding groove, a safety rod, a third sliding groove, a third steel cable and a starting block, wherein the first sliding groove is fixedly connected with the first gear, the second sliding groove is fixedly connected with the second gear, the bottom surface of the first rack is fixedly connected with the bottom wall of the second sliding groove through a fourth spring, the safety groove is formed in the first sliding groove in a left-right penetrating mode, the safety rod is slidably connected with the safety rod in the safety groove, a limiting groove capable of limiting the safety rod to move is formed in the left wall of the second sliding groove, the third sliding groove is formed in the right wall of the second sliding groove, the safety.
Optionally, the rightmost side of the storage cavity is provided with a rotating door, the rotating door is rotatably connected with the waterproof shell through a hinge, and a handle is fixedly arranged on the rotating door.
Optionally, a second rubber water stop strip is arranged on the right wall of the third sliding groove.
Optionally, a third rubber water stop strip is fixedly arranged on the left wall of the waterproof housing and around the outer line.
The invention has the beneficial effects that: the invention has simple structure and convenient use, detects the depth of accumulated water through the buoyancy ball, opens the water inlet groove when the depth of the accumulated water is higher than a certain value, so that the accumulated water can flow into the protective shell through the water inlet groove, and prevents the accumulated water from entering the main control cabinet to cause damage to circuits in the main control cabinet.
Meanwhile, the main control cabinet and the outer line can be separated through the linkage device, the outer line is pulled into the sealing groove to be sealed while the main control cabinet is powered off, and accumulated water is prevented from being in contact with the outer line, so that the accumulated water is electrified, and the threat to a human body is prevented.
Drawings
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; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
FIG. 1 is a schematic diagram of a watertight power-off protection switch cabinet according to the present invention;
FIG. 2 is a schematic view of the structure at B-B in FIG. 1;
FIG. 3 is an enlarged view of the first rotary chamber of FIG. 1;
FIG. 4 is a schematic view of the structure at A-A in FIG. 3;
FIG. 5 is an enlarged view of the structure of the water inlet tank in FIG. 1;
FIG. 6 is an enlarged view of the first linkage chamber of FIG. 1;
FIG. 7 is an enlarged view of the structure of the long rack of FIG. 1;
FIG. 8 is an enlarged view of the first moving groove of FIG. 1;
fig. 9 is an enlarged schematic view of the third rubber water stop strip in fig. 1.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 9, according to an embodiment of the present invention, a switch cabinet with water seepage prevention and power off protection includes a waterproof housing 11, a receiving cavity 12 is disposed through the waterproof housing 11, a main control cabinet 13 is disposed in the receiving cavity 12, a sealing groove 17 is disposed through the left wall of the receiving cavity 12, an external wire 16 penetrating the left side surface of the waterproof housing 11 is disposed in the left wall of the sealing groove 17, a connector 14 is fixedly disposed on the right side surface of the external wire 16, the external wire 16 is connected to the main control cabinet 13 through the connector 14, a first moving groove 20 is disposed through the bottom wall of the sealing groove 17, a sealing plate 64 is slidably connected to the first moving groove 20, first rubber water stop bars 63 are disposed on the left and right walls of the sealing plate 64, the bottom surface of the sealing plate 64 is fixedly connected to the bottom wall of the first moving groove 20 through a first spring 55, a first rotating cavity is disposed through the connecting groove 18 in the bottom wall of the left side of the sealing groove 17, of 19, a threaded shaft 37 is rotatably connected between the left wall and the right wall of the first rotating cavity 19, a first moving block 36 is connected to the threaded shaft 37 in a threaded manner, a connecting rod 35 is fixedly arranged on the top surface of the first moving block 36, the connecting rod 35 extends into the sealing groove 17 and is fixedly connected with a sleeve 15 fixedly arranged on the outer line 16, first slide rails 40 are symmetrically arranged in the front wall and the rear wall of the first rotating cavity 19, a second moving block 41 is slidably connected to the first slide rails 40, the second moving block 41 is fixedly connected to the front wall and the rear wall of the first moving block 36, a water inlet groove 31 is communicated with the bottom wall of the accommodating cavity 12, a second moving groove 46 is communicated with the left wall of the water inlet groove 31, a baffle plate 42 is slidably connected to the second moving groove 46, a second rotating cavity 27 is arranged below the second moving groove 46, and a first rotating shaft 26 is rotatably connected between the left wall and the right wall of the second rotating cavity 27, the take-up reel 25 is fixedly arranged on the first rotating shaft 26, the first steel cable 45 is fixedly arranged on the take-up reel 25, the first steel cable 45 bypasses the reel 43 and is fixedly connected with the left side face of the baffle 42, the starting device 101 capable of controlling the baffle 42 to be opened is arranged in the second rotating cavity 27, and the linkage device 102 capable of controlling the connection head 14 and the main control cabinet 13 to be disconnected is arranged on the left side of the second rotating cavity 27.
Preferably, the starting device 101 includes a first gear 30 fixedly arranged on the first rotating shaft 26, a water level groove 24 penetrates left and right below the second rotating cavity 27, a short rack 29 is slidably connected to a top wall of the water level groove 24, the short rack 29 extends into the second rotating cavity 27 and is engaged with a front tooth surface of the first gear 30, a top surface of the short rack 29 is fixedly connected to the top wall of the second rotating cavity 27 through a second steel cable 44, a buoyancy ball 28 is fixedly arranged at a bottom end of the short rack 29, when accumulated water enters the water level groove 24, the short rack 29 is driven by the buoyancy ball 28 to move upwards, the short rack 29 drives the first rotating shaft 26 to rotate through the first gear 30, the first rotating shaft 26 retracts the first steel cable 45 through the take-up pulley 25, the first steel cable 45 drives the baffle 42 to move leftwards, communicating the inlet channel 31 with the receiving chamber 12.
Preferably, a first linkage cavity 23 is arranged on the left side of the second rotation cavity 27, the linkage device 102 includes a water receiving box 50 slidably connected to the first linkage cavity 23, the bottom surface of the water receiving box 50 is fixedly connected to the bottom wall of the first linkage cavity 23 through a second spring 53, second slide rails 52 are symmetrically arranged in the left and right walls of the first linkage cavity 23, a third moving block 51 is slidably connected to the second slide rails 52, the third moving block 51 is fixedly connected to the water receiving box 50, a first slide groove 48 is arranged in the left wall of the second rotation cavity 27, a starting block 47 is slidably connected to the first slide groove 48, the left wall of the starting block 47 is fixedly connected to the left wall of the first slide groove 48 through a third spring 49, the first linkage cavity 23 is communicated with the water inlet groove 31 through a water inlet pipe 38, and a second gear 39 is fixedly arranged on the threaded shaft 37, a second sliding groove 54 is communicated with the bottom wall of the first rotating cavity 19, a long rack 21 meshed with the second gear 39 is connected in the second sliding groove 54 in a sliding manner, the bottom surface of the long rack 21 is fixedly connected with the bottom wall of the second sliding groove 54 through a fourth spring 59, a safety groove 58 is arranged in the long rack 21 in a left-right penetrating manner, a safety rod 57 is connected in the safety groove 58 in a sliding manner, a limiting groove 56 capable of limiting the safety rod 57 to move is arranged in the left wall of the second sliding groove 54, a third sliding groove 61 is arranged in the right wall of the second sliding groove 54, the safety rod 57 can slide into the third sliding groove 61, the right side surface of the safety rod 57 is fixedly connected with the left side surface of the starting block 47 through a third steel cable 60, and when water enters the water collecting box 50 through the water inlet pipe 38, the water collecting box 50 is driven to move downwards, when the water receiving box 50 moves downwards until the topmost surface of the water receiving box 50 is lower than the first sliding groove 48, the starting block 47 moves rightwards under the action of the third spring 49, the starting block 47 drives the safety rod 57 to move rightwards through the third steel cable 60 to separate from the safety groove 58, the long rack 21 moves upwards under the action of the fourth spring 59 to drive the second gear 39 to rotate, the second gear 39 drives the first moving block 36 to rotate through the threaded shaft 37, the first moving block 36 moves leftwards due to the limitation of the second moving block 41, the connecting rod 35 drives the sleeve 15 to move leftwards, the sleeve 15 drives the external line 16 and the connecting head 14 to move leftwards, and the connecting head 14 is disconnected from the main control cabinet 13.
Preferably, a rotating door 32 is arranged at the rightmost side of the accommodating cavity 12, the rotating door 32 is rotatably connected with the waterproof housing 11 through a hinge 34, and a handle 33 is fixedly arranged on the rotating door 32.
Preferably, a second rubber water stop bar 62 is arranged on the right wall of the third sliding groove 61, and the second rubber water stop bar 62 rapidly expands when meeting water to close the gap around the third steel cable 60.
Preferably, a third rubber water stop strip 65 is fixedly arranged on the left wall of the waterproof housing 11 and around the outer line 16, and the third rubber water stop strip 65 rapidly expands when meeting water to close the gap around the outer line 16.
In an initial state, the first spring 55 is in a compressed state, the second spring 5 is in a compressed state, the third spring 49 is in a compressed state, the fourth spring 59 is in a compressed state, the baffle plate 42 seals the water inlet groove 31, the third moving block 51 is located at the uppermost position of the second slide rail 52, the safety rod 57 penetrates through the safety groove 58 and is located in the limiting groove 56 and the third slide groove 61, and the connecting head 14 is connected with the main control cabinet 13.
When water seepage occurs, after the accumulated water enters the water level groove 24, the baffle 42 is driven by the buoyancy ball 28 to move leftwards, the water inlet groove 31 is communicated with the storage cavity 12, the water enters the storage cavity 12 and enters the water collection box 50 through the water inlet pipe 38, the water collection box 50 moves downwards under the action of gravity to drive the sleeve 15 to move leftwards, so that the connector 14 is disconnected with the main control cabinet 13 and the connector 14 is pulled into the sealing groove 17, then the sealing plate 64 moves upwards under the action of the first spring 55 to seal the sealing groove 17, the first rubber water stop strip 63 on the sealing plate 64 expands when meeting water to block a gap between the sealing plate 64 and the sealing groove 17, so that the accumulated water is prevented from entering the sealing groove 17 and being contacted with the connector 14 to enable the accumulated water to be charged, poses a threat to the human body.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a cubical switchboard of prevention of seepage water power-off protection, includes waterproof shell, it accomodates the chamber to run through to be equipped with in the waterproof shell, its characterized in that: a main control cabinet is placed in the containing cavity, a sealing groove is communicated in the left wall of the containing cavity, an external wire penetrating through the left side surface of the waterproof shell is arranged in the left wall of the sealing groove, a connector is fixedly arranged on the right side surface of the external wire, the external wire can be connected with the main control cabinet through the connector, a first moving groove is communicated in the bottom wall of the sealing groove, a sealing plate is connected in the first moving groove in a sliding manner, first rubber water stop strips are arranged on the left wall and the right wall of the sealing plate, the bottom surface of the sealing plate is fixedly connected with the bottom wall of the first moving groove through a first spring, a first rotating cavity is communicated in the bottom wall of the sealing groove on the left side of the first moving groove through a connecting groove, a threaded shaft is rotatably connected between the left wall and the right wall of the first rotating cavity, a first moving block is connected to, the connecting rod extends into the sealing groove and is fixedly connected with a sleeve fixedly arranged on the outer line, first slide rails are symmetrically arranged in the front wall and the rear wall of the first rotating cavity, a second moving block is connected in the first slide rails in a sliding manner, the second moving block is fixedly connected with the front wall and the rear wall of the first moving block, a water inlet groove is communicated and arranged in the bottom wall of the accommodating cavity, a second moving groove is communicated and arranged in the left wall of the water inlet groove, a baffle is connected in the second moving groove in a sliding manner, a second rotating cavity is arranged below the second moving groove, a first rotating shaft is rotatably connected between the left wall and the right wall of the second rotating cavity, a take-up pulley is fixedly arranged on the first rotating shaft, a first steel cable is fixedly arranged on the take-up pulley, the first steel cable bypasses the reel and is fixedly connected with the left side face of the baffle, and a starting device capable of controlling the baffle, and a linkage device capable of controlling the connection head and the main control cabinet to be disconnected is arranged on the left side of the second rotating cavity.
2. The switch cabinet with water seepage prevention and power off protection according to claim 1, characterized in that: the starting device comprises a first gear fixedly arranged on a first rotating shaft, a water level groove is formed in the left side and the right side of the lower portion of a second rotating cavity in a penetrating mode, a short rack is connected to the top wall of the water level groove in a sliding mode, the short rack extends into the second rotating cavity and is meshed with the front tooth face of the first gear, the top face of the short rack is fixedly connected with the top wall of the second rotating cavity through a second steel cable, and a buoyancy ball is fixedly arranged at the bottom end of the short rack.
3. The switch cabinet with water seepage prevention and power off protection according to claim 1, characterized in that: a first linkage cavity is arranged on the left side of the second rotation cavity, the linkage device comprises a water receiving box which is in sliding connection with the first linkage cavity, the bottom surface of the water receiving box is fixedly connected with the bottom wall of the first linkage cavity through a second spring, second slide rails are symmetrically arranged in the left wall and the right wall of the first linkage cavity, a third moving block is connected in the second slide rails in a sliding manner, the third moving block is fixedly connected with the water receiving box, a first slide groove is formed in the left wall of the second rotation cavity in a penetrating manner, a starting block is connected in the first slide groove in a sliding manner, the left wall of the starting block is fixedly connected with the left wall of the first slide groove through a third spring, the first linkage cavity is communicated with the water inlet groove through a water inlet pipe, a second gear is fixedly arranged on the threaded shaft, a second slide groove is communicated with the bottom wall of the first rotation cavity in a penetrating manner, and a long rack which is meshed with the second gear is connected in a sliding manner in the second slide groove in a sliding manner, the long rack bottom surface with through fourth spring fixed connection between the second sliding tray diapire, it is equipped with the safety groove to run through about in the long rack, sliding connection has the safety bar in the safety groove, be equipped with in the second sliding tray left wall and restrict the spacing groove that the safety bar removed, be equipped with the third sliding tray in the second sliding tray right wall, the safety bar can slide in the third sliding tray, the safety bar right flank with through third cable wire fixed connection between the start block left surface.
4. The switch cabinet with water seepage prevention and power off protection according to claim 1, characterized in that: accomodate the chamber rightmost side and be equipped with the revolving door, the revolving door with waterproof case passes through the hinge rotation and connects, the last handle that has set firmly of revolving door.
5. The switch cabinet with water seepage prevention and power off protection according to claim 1, characterized in that: and a second rubber water stop strip is arranged on the right wall of the third sliding groove.
6. The switch cabinet with water seepage prevention and power off protection according to claim 1, characterized in that: and a third rubber water stop strip is fixedly arranged on the left wall of the waterproof shell and positioned around the outer line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730997.1A CN111817166B (en) | 2020-07-27 | 2020-07-27 | Prevention of seepage water power-off protection's cubical switchboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730997.1A CN111817166B (en) | 2020-07-27 | 2020-07-27 | Prevention of seepage water power-off protection's cubical switchboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111817166A true CN111817166A (en) | 2020-10-23 |
| CN111817166B CN111817166B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010730997.1A Active CN111817166B (en) | 2020-07-27 | 2020-07-27 | Prevention of seepage water power-off protection's cubical switchboard |
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| CN (1) | CN111817166B (en) |
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|---|---|---|---|---|
| CN112392131A (en) * | 2020-11-03 | 2021-02-23 | 童中林 | Cloud transmission-based anti-falling protection device for glass carbon fiber plate inspection well cover and application method thereof |
| CN113142911A (en) * | 2021-05-19 | 2021-07-23 | 王旭 | Ceramic exhibition cabinet and use method thereof |
| CN113358228A (en) * | 2021-06-04 | 2021-09-07 | 吉安市正和电力发展有限公司 | Wireless temperature measuring device for electric power low-voltage draw-out type switch cabinet |
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