CN112310848B - Dampproofing and waterproof switch board - Google Patents
Dampproofing and waterproof switch board Download PDFInfo
- Publication number
- CN112310848B CN112310848B CN202011218669.XA CN202011218669A CN112310848B CN 112310848 B CN112310848 B CN 112310848B CN 202011218669 A CN202011218669 A CN 202011218669A CN 112310848 B CN112310848 B CN 112310848B
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- power distribution
- distribution cabinet
- rotating arm
- rotating shaft
- cabinet body
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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
- H02B1/30—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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- 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
- H02B1/303—Bases or feet
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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
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
- H02B1/505—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor retractable installations
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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
- H02B1/54—Anti-seismic devices or installations
Abstract
The invention relates to a moisture-proof and waterproof power distribution cabinet which comprises a base, a supporting rod and a power distribution cabinet body, wherein a power distribution cabinet rotating shaft is arranged on the power distribution cabinet body, the power distribution cabinet rotating shaft is connected with a rotating arm, the middle part of the rotating arm is connected to the supporting rod through the rotating shaft and is far away from the end of the base, the rotating arm can rotate around the rotating shaft, the other end of the rotating arm is provided with a stabilizing plate, a limiting block, a balancing weight and a limiting block are sequentially arranged on the rotating arm from the stabilizing plate to the rotating shaft, a motor and a transmission mechanism are arranged on the supporting rod to realize the rotation of the rotating arm, and the supporting rod is vertically arranged on the base; the invention not only solves the problems of moisture resistance and water resistance of the power distribution cabinet, but also solves the problems that the power distribution cabinet and the lifting mechanism cannot bear heavy impact, the height cannot rise too high, and floaters are gathered around the power distribution cabinet.
Description
Technical Field
The invention belongs to the technical field of power equipment, and particularly relates to a moisture-proof and waterproof power distribution cabinet.
Background
The power distribution cabinet is important and commonly used equipment in a power system and is wide in application. The working environment is mostly in a remote place, and moisture is avoided and water is prevented; however, when flood disasters occur, the whole power distribution cabinet is submerged by water, so that the common moisture-proof and waterproof scheme fails; some switch boards have the function that risees, make the switch board rise to the surface of water above. For example, floaters are used for providing buoyancy for the power distribution cabinet, ropes are used for limiting the power distribution cabinet to avoid floating, but the power distribution cabinet is easy to rotate in water flow, so that the ropes and cables are wound to cause danger; furthermore, floaters with extremely high impact force in flood water flow, such as big trees, advertising boards, automobiles and the like, are easily hooked by the ropes or impact the power distribution cabinet, so that the ropes are broken, the power distribution cabinet leaks water, the power distribution cabinet is pressed in water under the power distribution cabinet by the impact objects or is dragged to the water by the ropes, and even the cables are pulled apart; if the water flow straightens the rope, the cabinet body cannot flow along with the waves, and the water flow and the surge can impact and splash on the cabinet body;
for another example, some power distribution cabinets are lifted above the water surface by a lifting mechanism, for example, an outdoor waterproof power distribution cabinet for a power distribution system disclosed in publication No. CN107546622A is lifted by a base when encountering heavy rain, and the periphery of a cabinet body is provided with an anti-collision plate; although the anti-collision plate can buffer impact force, when the impact force is too large, the anti-collision plate can still be damaged by collision, displaced and even the power distribution cabinet falls off, and a cable is easily broken after displacement and cannot be automatically reset; the impact force can be transmitted to the base to possibly knock down the whole equipment, the height from the power distribution cabinet to the base forms a force arm after the equipment is lifted, the higher the height is, the more easily the equipment is knocked down by the impact force and knocked down by water flow, and therefore the rising height of the equipment is not too high easily; the power distribution cabinet and the lifting mechanism cannot flow gradually along with waves integrally, and water flow can form surging and splash splashes to the power distribution cabinet;
for another example, publication No. CN111181020A is a dynamic waterproof power distribution cabinet, which also has the above-mentioned disadvantages, and the floating objects float to the vicinity of the power distribution cabinet along with the water flow and gather, and continuously impact the power distribution cabinet.
Therefore, the moisture-proof and waterproof power distribution cabinet is urgently needed to be invented to solve the technical problems that the existing power distribution cabinet and the lifting mechanism cannot bear heavy impact, cannot rise too high in height, and floaters are gathered around the power distribution cabinet to cause damage to the power distribution cabinet.
Disclosure of Invention
Aiming at the problems, the invention provides a moisture-proof and waterproof power distribution cabinet which bears impact force through a rotating arm and releases the kinetic energy of impact into water so as to play roles in buffering, damping, stopping and absorbing the kinetic energy. After the impact kinetic energy is released, the kinetic energy of water flow is absorbed to reset the rotating arm, so that the power distribution cabinet is kept at a high position; the power distribution cabinet is lifted to a high place to be far away from moisture through the action of the motor and the transmission mechanism; meanwhile, the stabilizing plate enables the power distribution cabinet to be quickly lifted and reset through the rotating arm and the rotating shaft by utilizing the impact force of water flow, and pushes away the impact objects to avoid the floating objects from being gathered nearby.
The technical scheme adopted by the invention is as follows: the utility model provides a dampproofing and waterproofing switch board, includes base, bracing piece, the switch board cabinet body, be provided with the switch board pivot on the switch board cabinet body, switch board pivot and rocking arm are connected, and the middle part of rocking arm is connected to the bracing piece through the pivot and keeps away from the base end, and the rocking arm can revolute the rotation of axes, and the other end of rocking arm sets up the steadying plate, sets gradually stopper, balancing weight, stopper from steadying plate to pivot direction on the rocking arm, sets up motor and drive mechanism on the bracing piece and realizes that the rocking arm is rotatory, and the bracing piece is vertical to be set up on the base, and controlling means installs on the bracing piece.
Further, the cabinet body can use the switch board pivot as the center rotation.
Further, the switch board pivot is above the focus of switch board.
Further, the switch board hangs on the rocking arm through the switch board pivot under the action of gravity, keeps vertical.
Furthermore, the balancing weight can slide along the rotating arm between the limiting blocks.
Further, the weight of balancing weight is not less than the weight of switch board.
Furthermore, after the rotating angle of the rotating arm is larger than 90 degrees, the motor is disconnected with the transmission mechanism.
Further, the rotation angle of the rotating arm is preferably 110 degrees.
Further, the tumbler rotates to the set angle, and the balancing weight begins to slide to the stopper department of stabilizing the board end.
Furthermore, the lower part of the cabinet body of the power distribution cabinet is suspended.
Furthermore, a humidity sensor and a water level sensor are arranged at the lower part of the cabinet body of the power distribution cabinet and used for being matched with a control device to control the action of the motor.
Furthermore, the supporting rod can rotate on the base.
Furthermore, the base end of the supporting rod is cylindrical, so that the supporting rod can be conveniently matched with the base to realize rotation.
Further, the switch board is seal structure.
Compared with the prior art, the invention has the beneficial effects that:
(1) The power distribution cabinet and the lifting mechanism can bear heavy impact; when a large object in flood water collides the power distribution cabinet, the power distribution cabinet can rotate around a rotating shaft of the power distribution cabinet and retract into the rotating arm, the rotating arm bears impact force, the rotating arm can rotate around the rotating shaft and retract under the impact force, the stabilizing plate end of the rotating arm can move in the opposite direction of the impact force to release the kinetic energy of the impact into the water, and the functions of buffering, damping, stopping and absorbing the kinetic energy are achieved; after the impact kinetic energy is released, the kinetic energy of the water flow is absorbed to reset the rotating arm, so that the power distribution cabinet is kept at a high position; therefore, the power distribution cabinet and the lifting mechanism can bear heavy impact. Under the extreme condition, the power distribution cabinet adopts a sealing structure, when an impact object is overlarge and the impact force is overlarge, the power distribution cabinet and the rotating arm can be sunk into water in a circular motion manner around the rotating shaft, and after the impact object and the impact force pass, the power distribution cabinet and the rotating arm can rise above the water surface again in a reverse circular motion manner under the cooperation of the stabilizing plate and the balancing weight;
(2) The invention has the advantages that the rising height can be obviously higher than that of the prior art, and the side turning can not happen in flood; the stabilizing plate on the rotating arm is stressed by flood water flow, so that the rotating arm rotates to a certain angle towards the advancing direction of the water flow, the rotating angle is the inclined angle of the stabilizing plate, part of the impact force of the water flow is converted into upward force, the impact force in the direction of the water flow is reduced, the torsion force on the base is reduced, and the side turning is avoided; particularly, when the power distribution cabinet end of the rotating arm is impacted by a large force, the inclined stabilizing plate can convert part of the impact force into a downward force, and meanwhile, the inclined stabilizing plate is matched with the impact force to perform buffering rotation so as to release impact kinetic energy into water, so that the stress of the base is obviously reduced, and the side inclination is avoided; therefore, the lifting height of the power distribution cabinet can be obviously improved, and the power distribution cabinet is not easy to turn over;
(3) When the humidity detector detects a set value, the motor and the transmission mechanism are driven to act, and the power distribution cabinet is lifted to a high place and is far away from humidity; the bottom of the power distribution cabinet is suspended, and the moisture resistance is superior to that of the prior art when the bottom is not improved;
(4) The invention can automatically adjust the direction of water flow impact; after the stabilizing plate and the rotating arm rotate to a certain angle around the rotating shaft under the impact of water flow, the stabilizing plate and the rotating arm are subjected to lateral impact force and can apply force to the supporting rod through the rotating shaft, so that the supporting rod rotates to an angle without the lateral force on the base; namely, the device always enables one surface which is beneficial to energy absorption to face to water flow;
(5) According to the invention, after the floaters impact the power distribution cabinet or the rotating arm, when the impact force is reduced, the stabilizing plate utilizes the impact force of water flow to quickly raise and reset the power distribution cabinet through the rotating arm and the rotating shaft, so that the floaters are pushed away, and the floaters are prevented from gathering nearby;
(6) When the water depth is close to the power distribution cabinet, the power distribution cabinet can swing and fluctuate under the control of the rotating arm and the rotating shaft, and the power distribution cabinet can do wave-following-flow-like motion above the water surface, so that water splash generated by water flow impacting the supporting parts such as the rotating arm, the supporting frame and the base can be prevented from splashing on the cabinet body.
Description of the drawings: fig. 1 is a schematic front structural view of the present invention.
Fig. 2 is a schematic diagram of the power distribution cabinet body of the invention after being lifted.
Fig. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic front view of the cabinet body of the power distribution cabinet of the present invention after being lifted.
Reference numerals: 1-a power distribution cabinet body, 2-a power distribution cabinet rotating shaft, 3-a rotating shaft, 4-a balancing weight, 5-a limiting block, 6-a rotating arm, 7-a stabilizing plate, 8-a supporting rod, 9-a base, 10-a motor and 11-a transmission mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-4, in the present embodiment, a moisture-proof and waterproof power distribution cabinet includes a base 9, a support rod 8, and a power distribution cabinet body 1, a power distribution cabinet rotating shaft 2 is disposed on the power distribution cabinet body 1, the power distribution cabinet rotating shaft 2 is connected to a rotating arm 6, the middle of the rotating arm 6 is connected to the support rod 8 through the rotating shaft 3 and is far away from the base end, the rotating arm 6 can rotate around the rotating shaft 3, a stabilizing plate 7 is disposed at the other end of the rotating arm 6, a limit block 5, a counter weight block 4, and a limit block 5 are sequentially disposed on the rotating arm from the stabilizing plate to the rotating shaft direction, a motor and a transmission mechanism are disposed on the support rod 8 to realize rotation of the rotating arm, and the support rod 8 is vertically disposed on the base 9; the cabinet body 1 of the power distribution cabinet can rotate by taking the rotating shaft 2 of the power distribution cabinet as a center; the power distribution cabinet rotating shaft 2 is arranged above the gravity center of the power distribution cabinet body 1, the power distribution cabinet body 1 is hung on the rotating arm through the power distribution cabinet rotating shaft 2 under the action of gravity to keep vertical, and the balancing weight 4 can slide along the rotating arm 6 between the limiting blocks 5; the rocking arm 6 is rotatory to the set angle, and balancing weight 4 begins to slide to 5 departments of stopper of steadying the board end slide, bracing piece 8 can rotate on base 9, and 1 lower part of the switch board cabinet body sets up humidity transducer and level sensor and is used for cooperating the action of controlling means control motor 10, and controlling means installs on bracing piece 8, and controls through PLC.
Referring to fig. 1-2, in the embodiment, in a moisture-proof and waterproof power distribution cabinet, when a humidity sensor or a water level sensor at a lower portion of a cabinet body 1 of the power distribution cabinet reaches a set value, a motor 10 and a transmission mechanism 11 are actuated, a rotating arm 6 is driven to rotate to a set angle, for example, 110 degrees, a counterweight 4 slides along the rotating arm 6 towards a stabilizing plate 7 under the action of gravity, and finally stops at a limiting block 5 near the stabilizing plate 7, at this time, the transmission mechanism 11 and the motor 10 are disengaged, a rotating shaft 6 rotates around a rotating shaft 3 under the action of gravity of the counterweight 4, so that the cabinet body 1 of the power distribution cabinet is lifted to a high position, and the power distribution cabinet is kept in a lifting state under the action of gravity, so that the power distribution cabinet is far away from moisture and water surfaces.
In the analysis of the stress work in the water flow, please refer to fig. 1-2, in this embodiment, after the power distribution cabinet is lifted, the water flow impacts the base 9, the support rod 8, the rotating arm 6 and the stabilizing plate 7, the force impacting the stabilizing plate 7 rotates the rotating arm 6 around the rotating shaft 3 by a certain angle, and the upper end of the corresponding rotating arm 6 tilts by the same angle in the opposite direction of the water flow; when large-sized floating objects such as big trees and the like impact the cabinet body 1 of the power distribution cabinet on the water surface, the power distribution cabinet 1 rotates around the rotating shaft 2 of the power distribution cabinet by a certain angle and retracts into the edge of the rotating arm 6, the impacting objects can continuously move forward and impact the rotating arm 6, the rotating arm 6 rotates around the rotating shaft 3 to drive the stabilizing plate 7 to move along the tangential direction of a circle taking the rotating arm 6 as the radius rotating shaft 3 as the center of circle, namely, the stabilizing plate moves in the opposite direction (the impacting direction) and the downward direction of water flow, the impacting force is buffered, and the impacting energy is released into water; after the impact force is reduced, the stabilizing plate 7 collects the impact force of water flow to enable the power distribution cabinet body 1 to be quickly lifted and reset through the rotating arm 6 and the rotating shaft 3, and the impact object is pushed away; switch board 1 can be seal structure, and when the rammer was very big, switch board cabinet body 1 can follow 6 revolute axle 3 of rocking arm and rotate very big angle and get into below the surface of water, dodges the rammer, waits to rise above the surface of water again after the rammer passes along with the rivers.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The utility model provides a dampproofing and waterproofing switch board which characterized in that includes: the power distribution cabinet comprises a power distribution cabinet body (1), a power distribution cabinet rotating shaft (2), a rotating shaft (3), a balancing weight (4), a limiting block (5), a rotating arm (6), a stabilizing plate (7), a supporting rod (8), a base (9), a motor (10), a transmission mechanism (11) and a control device;
the power distribution cabinet is characterized in that a power distribution cabinet rotating shaft (2) is arranged on a power distribution cabinet body (1), the power distribution cabinet rotating shaft (2) is connected with a rotating arm (6), the middle part of the rotating arm (6) is connected to one end, far away from a base (9), of a supporting rod (8) through a rotating shaft (3), the rotating arm (6) can rotate around the rotating shaft (3), a stabilizing plate (7) is arranged at the other end of the rotating arm (6), a limiting block (5), a balancing weight (4) and a limiting block (5) are sequentially arranged on the rotating arm (6) from the stabilizing plate (7) to the rotating shaft (3), a motor (10) and a transmission mechanism (11) are arranged on the supporting rod (8) to achieve rotation of the rotating arm (6), the supporting rod (8) is vertically arranged on the base (9), and a control device is installed on the supporting rod (8);
the power distribution cabinet body (1) can rotate by taking a power distribution cabinet rotating shaft (2) as a center;
the power distribution cabinet rotating shaft (2) is arranged above the gravity center of the power distribution cabinet body (1), and the power distribution cabinet body (1) is hung on the rotating arm (6) through the power distribution cabinet rotating shaft (2) and is kept vertical under the action of gravity;
the balancing weight (4) can slide along the rotating arm (6) between the limiting blocks (5);
the weight of the balancing weight (4) is not less than the total weight of the cabinet body (1) of the power distribution cabinet;
the rotating arm (6) rotates to a set angle, the balancing weight (4) starts to slide, and the balancing weight slides to a limiting block (5) close to one end of the stabilizing plate (7);
the supporting rod (8) can rotate on the base (9);
a humidity sensor and a water level sensor are arranged at the lower part of the power distribution cabinet body (1) and are used for being matched with a control device to control the motor (10) to act;
the cabinet body (1) is of a sealing structure;
when any sensor of a humidity sensor or a water level sensor at the lower part of a cabinet body (1) of the power distribution cabinet reaches a set value, a motor (10) and a transmission mechanism (11) act, a rotating arm (6) is driven to rotate to a set angle, a balancing weight (4) slides along the rotating arm (6) to a stabilizing plate (7) under the action of gravity and finally stops at a limiting block (5) near the stabilizing plate (7), the transmission mechanism (11) and the motor (10) are separated at the moment, a rotating shaft (6) rotates around a rotating shaft (3) under the action of the gravity of the balancing weight (4), the cabinet body (1) of the power distribution cabinet is lifted to a high position, and the state that the power distribution cabinet is lifted up is kept under the action of the gravity, so that the power distribution cabinet is far away from moisture and water level;
after the power distribution cabinet is lifted, water flow can impact the base (9), the supporting rod (8), the rotating arm (6) and the stabilizing plate (7), the force impacting the stabilizing plate (7) enables the rotating arm (6) to rotate around the rotating shaft (3) for a certain angle, and the upper end of the corresponding rotating arm (6) can tilt towards the opposite direction of the water flow for the same angle; when a large floater on the water surface impacts the cabinet body (1) of the power distribution cabinet, the power distribution cabinet (1) can rotate around the rotating shaft (2) of the power distribution cabinet by a certain angle and retract into the edge of the rotating arm (6), the impactor can continuously move forward and impact the rotating arm (6), the rotating arm (6) rotates around the rotating shaft (3) to drive the stabilizing plate (7) to move along the tangential direction of a circle taking the rotating shaft (3) with the radius of the rotating arm (6) as the center of the circle, namely to move in the opposite direction of water flow and downwards, impact force is buffered, and impact energy is released into water; when the impact force is reduced, the stable plate (7) collects the impact force of water flow to enable the cabinet body (1) of the power distribution cabinet to rise quickly and reset through the rotating arm (6) and the rotating shaft (3), and the impact is pushed away; the power distribution cabinet (1) is of a sealing structure, when the impact object is extremely large, the power distribution cabinet body (1) rotates around the rotating shaft (3) along with the rotating arm (6) to enter the water surface at a large angle to avoid the impact object, and the impact object rises to the water surface after passing along with water flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011218669.XA CN112310848B (en) | 2020-11-04 | 2020-11-04 | Dampproofing and waterproof switch board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011218669.XA CN112310848B (en) | 2020-11-04 | 2020-11-04 | Dampproofing and waterproof switch board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112310848A CN112310848A (en) | 2021-02-02 |
| CN112310848B true CN112310848B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011218669.XA Active CN112310848B (en) | 2020-11-04 | 2020-11-04 | Dampproofing and waterproof switch board |
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| CN (1) | CN112310848B (en) |
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| CN110254754A (en) * | 2019-06-24 | 2019-09-20 | 北京机械设备研究所 | A kind of Space Rotating release device and rotation method for releasing |
| CN209592673U (en) * | 2019-04-29 | 2019-11-05 | 广东恺顺达电气有限公司 | A kind of Anti-collision high-voltage terminal cabinet that can be gone up and down |
| CN110581450A (en) * | 2019-09-27 | 2019-12-17 | 永州市忠立电力设备制造有限公司 | Over-and-under type distribution device convenient to maintain |
| CN111799670A (en) * | 2020-06-17 | 2020-10-20 | 阜阳腾冠电力科技有限公司 | Flood control switch board |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207442300U (en) * | 2017-12-08 | 2018-06-01 | 国网浙江平阳县供电有限责任公司 | A kind of cabinet body structure of power distribution cabinet |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204675669U (en) * | 2015-04-28 | 2015-09-30 | 河南兴远起重机有限公司 | A kind of rotating arm crane with clump weight |
| CN106384949A (en) * | 2016-10-28 | 2017-02-08 | 包惠娣 | Rotatable lifting type power distribution cabinet |
| CN107769016A (en) * | 2017-10-21 | 2018-03-06 | 严白双 | A kind of electric power support tower and its method of work with radiator structure |
| CN209592673U (en) * | 2019-04-29 | 2019-11-05 | 广东恺顺达电气有限公司 | A kind of Anti-collision high-voltage terminal cabinet that can be gone up and down |
| CN110254754A (en) * | 2019-06-24 | 2019-09-20 | 北京机械设备研究所 | A kind of Space Rotating release device and rotation method for releasing |
| CN110581450A (en) * | 2019-09-27 | 2019-12-17 | 永州市忠立电力设备制造有限公司 | Over-and-under type distribution device convenient to maintain |
| CN111799670A (en) * | 2020-06-17 | 2020-10-20 | 阜阳腾冠电力科技有限公司 | Flood control switch board |
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| CN112310848A (en) | 2021-02-02 |
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