CN113700387A - Stainless steel explosion-proof power distribution cabinet - Google Patents

Stainless steel explosion-proof power distribution cabinet Download PDF

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Publication number
CN113700387A
CN113700387A CN202110917038.5A CN202110917038A CN113700387A CN 113700387 A CN113700387 A CN 113700387A CN 202110917038 A CN202110917038 A CN 202110917038A CN 113700387 A CN113700387 A CN 113700387A
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CN
China
Prior art keywords
block
sliding block
cabinet
limiting
power distribution
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Granted
Application number
CN202110917038.5A
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Chinese (zh)
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CN113700387B (en
Inventor
刘茂发
徐忠智
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Dongying Dongying High Tech Zone Power Distribution Co ltd
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Individual
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Priority to CN202110917038.5A priority Critical patent/CN113700387B/en
Publication of CN113700387A publication Critical patent/CN113700387A/en
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Publication of CN113700387B publication Critical patent/CN113700387B/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/52—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
    • E05B65/5207—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement
    • E05B65/5215—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement sliding
    • E05B65/523—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement sliding parallel to the surface on which the lock is mounted
    • 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
    • H02B1/32—Mounting of devices therein
    • 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
    • H02B1/38—Hinged covers or doors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Patch Boards (AREA)

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a stainless steel explosion-proof power distribution cabinet, which comprises a cabinet door and a cabinet body, wherein the cabinet door and the cabinet body are rotationally connected through a torsional spring; an electromagnet is arranged on the inner wall of one side of the cabinet body close to the cabinet door, and a sliding groove is arranged below one side of the cabinet body close to the electromagnet; the electromagnet is connected with an internal circuit of the electric power cabinet through an electric wire, and a sliding block, a first limiting block and a second limiting block are arranged below the electromagnet; the first limiting block and the second limiting block are fixedly connected with the cabinet body, the first limiting block is positioned above the second limiting block, and limiting grooves are formed in the first limiting block and the second limiting block respectively; the sliding block is simultaneously connected in the two limiting grooves in a sliding manner, a circular groove is formed in one side, close to the cabinet door, of the sliding block, and a clamping block is arranged below the sliding block; the fixture block is fixedly connected with the cabinet body; the sliding block is made of ferrite stainless steel, and the door lock can be controlled to be opened and closed when the power distribution cabinet is powered off, so that the timeliness of maintenance of the power distribution cabinet is guaranteed.

Description

Stainless steel explosion-proof power distribution cabinet
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a stainless steel explosion-proof power distribution cabinet.
Background
The power distribution cabinet is a general name of a motor control center, is divided into a power distribution cabinet, a lighting distribution cabinet and a metering cabinet and is a final-stage device of a power distribution system; the power distribution cabinet is used in the occasions with dispersed loads and less loops; the motor control center is used for occasions with concentrated loads and more loops; they distribute the power of a certain circuit of the upper-level power distribution equipment to the nearby loads, and the equipment provides protection, monitoring and control for the loads; the explosion-proof power distribution cabinet is a type of power distribution cabinet with explosion-proof performance, and is suitable for power distribution wiring in flammable and explosive places such as petrochemical devices, oil platforms, chemical engineering, pharmacy, coal, smelting, ship manufacturing, war industry, textile and the like; the explosion-proof power distribution cabinet who has now has some shortcomings, when constructor leads to the electric power cabinet outage carelessly, still need to go to look for the key in order to overhaul the electric power cabinet this moment and open the door, wastes time and energy, and the best maintenance time can be delayed if serious, so need one kind and can not need the key directly to open the switch board that the lock got into the inside rapid repair of switch board when the switch board outage this moment.
As an application number CN201922316622.6 discloses an explosion-proof power distribution cabinet, including the switch board main part, wherein: the power distribution cabinet is characterized in that two supporting seats are symmetrically arranged on the lower side of the power distribution cabinet main body and fixedly connected with the lower side of the power distribution cabinet main body, a rotatable cabinet door is arranged at an opening of the power distribution cabinet main body, two partition plates are arranged inside the power distribution cabinet main body, three ventilation and heat dissipation ports are formed in the side wall of the power distribution cabinet main body, a heat dissipation mechanism is arranged at the upper end of the power distribution cabinet main body, an electricity receiving box is fixedly connected to the inner side of the power distribution cabinet main body, a power supply box is fixedly connected to the inner side of the power distribution cabinet main body, an electricity receiving mechanism used for electrifying the heat dissipation mechanism is arranged inside the electricity receiving box, and a temperature sensor is fixedly connected to the side wall of the electricity receiving box; according to the technical scheme, the operation and the stop of the cooling fan are controlled according to the change of the temperature, so that the overhigh temperature in the electric power cabinet can be avoided, the normal work of the electric power cabinet is ensured, and the waste of electric energy can be reduced; however, the technical scheme does not consider the problem that when the power distribution cabinet is powered off, the interior of the power distribution cabinet can break down and the door lock needs to be quickly opened to repair the electrical element, so that the power distribution cabinet has certain limitation.
In view of this, in order to overcome the above technical problems, the present invention provides a stainless steel explosion-proof power distribution cabinet, which solves the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the stainless steel explosion-proof power distribution cabinet.
The technical scheme adopted by the invention for solving the technical problems is as follows: the stainless steel explosion-proof power distribution cabinet comprises a cabinet door and a cabinet body, wherein the cabinet door is rotatably connected with the cabinet body through a torsion spring, and an electric element is arranged in the cabinet body; an electromagnet is arranged on the inner wall of one side of the cabinet body close to the cabinet door, and a sliding groove is arranged below one side of the cabinet body close to the electromagnet; the electromagnet is connected with an internal circuit of the electric power cabinet through an electric wire, and a sliding block, a first limiting block and a second limiting block are arranged below the electromagnet; the first limiting block and the second limiting block are fixedly connected with the cabinet body, the first limiting block is positioned above the second limiting block, and limiting grooves are formed in the first limiting block and the second limiting block respectively; the sliding block is simultaneously connected in the two limiting grooves in a sliding manner, a circular groove is formed in one side, close to the cabinet door, of the sliding block, and a clamping block is arranged below the sliding block; the fixture block is fixedly connected with the cabinet body; the sliding block is made of ferrite stainless steel; the circular groove and the sliding groove are both in a circular arch shape; the circular groove formed in the sliding block corresponds to the sliding groove through the blocking of the clamping block when moving downwards; the electromagnet can attract the sliding block to move upwards through magnetic force in the electrified state;
when the power distribution cabinet is in power failure due to carelessness of constructors, a key is required to be found for opening the door for overhauling the power cabinet, time and labor are wasted, and the optimal overhauling time can be delayed seriously, so that the power distribution cabinet is required to be capable of entering the interior of the power distribution cabinet for rapid first-aid repair without directly opening the door lock by the key when the power distribution cabinet is in power failure;
therefore, when the power distribution cabinet is powered off, the electromagnet loses magnetic force, the sliding block slides downwards under the influence of gravity and finally slides onto the upper end face of the clamping block, the clamping block can limit the sliding block when moving downwards, at the moment, the position of the sliding block, close to a circular groove formed in one side of the cabinet door, is exactly on the same horizontal line with the sliding groove, the door lock is not blocked by the sliding block, and a maintenance worker can directly open the power distribution cabinet to maintain by stirring the cabinet door; the cabinet door is rotatably connected with the cabinet body through the torsion spring, the torsion spring not only can enable the cabinet door to automatically reset, but also can enable the cabinet door to close the cabinet door in an unlocking state, so that external sundries such as rainwater, wind, dust and the like are prevented from entering the interior of the cabinet body, and the safety of the power distribution cabinet is guaranteed; when the power distribution cabinet is powered on, an electromagnet in the power distribution cabinet can adsorb the sliding block through magnetic force, a first limiting block and a second limiting block which are arranged below the electromagnet can limit the sliding block, the sliding block can move up and down in a limiting groove, the position of a circular groove formed in the sliding block and the position of a sliding groove are not on the same horizontal plane, the sliding block can block the movement of a door lock, and at the moment, a maintenance worker can repair the power failure condition in the power distribution cabinet, have sufficient time to find a key, and lock the power distribution cabinet by using the key after opening a cabinet door by using the key;
according to the invention, the electromagnet drives the sliding block to move through magnetic force, so that the switch control of the door lock of the power distribution cabinet is realized, and the switch of the power distribution cabinet is controlled not only by the door lock, so that the effect that maintenance personnel can quickly open the cabinet door to rush repair electric elements in the power distribution cabinet when the power distribution cabinet is powered off is achieved, and the timeliness of the maintenance of the power distribution cabinet is ensured.
Preferably, a rubber ring is arranged in the circular groove; the rubber ring is a semi-circular body, and a chamfer angle is formed in one side of the rubber ring, which is far away from the cabinet door; when the power distribution cabinet is powered off, the sliding block which is not influenced by the electromagnetic force of the electromagnet slides to the same plane with the door lock, and the door lock can break away the blocking of the rubber ring only by dragging the door handle by maintenance personnel because the rubber ring is made of elastic material and easy to stretch; the chamfer angle formed on the rubber ring facilitates the door lock to pass through the rubber ring, has a guiding effect on the door lock when moving, prevents deviation between the door lock and the circular groove from moving, and enables the door to be opened more conveniently; and the bore of the inner ring of the rubber ring is smaller than the outer diameter of the door lock, the door lock is completely wrapped by the rubber ring, the door lock and the sliding block cannot be in contact, and the door lock can be protected.
Preferably, a gap is reserved between one side wall of the sliding block, which is far away from the cabinet body, and one side wall corresponding to the limiting groove, and the sliding block is fixedly connected with a triangular block; the triangular block can be abutted against the lower end opening of the limiting groove of the first limiting block under the action of the sliding block; during operation, the electro-magnet of circular telegram adsorbs the slider under it on the terminal surface through magnetic force, and the clearance between slider and the spacing groove not only can reduce the frictional force between the two, but also can make three hornblocks block in the spacing groove between slider and a stopper, and the slider receives three hornblocks's guide effect can be close to the cabinet body when rebound for thereby the slider can hug closely the cabinet body and fix the slider.
Preferably, grooves are symmetrically formed in the groove walls corresponding to the limiting grooves, and the two side walls corresponding to the grooves are connected with the roller in a sliding manner; the roller is in contact with the sliding block; during operation, the roller in the groove can reduce the friction force of the sliding block when the sliding block slides in the limiting groove, the phenomenon that the sliding block is blocked when the sliding block slides in the limiting groove is prevented, and the normal operation of the sliding block is guaranteed.
Preferably, the distance between the triangular block and the second limiting block is greater than the distance between the sliding block and the clamping block; when the electromagnetic locking device works, the electromagnet is powered off and loses magnetic force, so that the sliding block moves downwards, the sliding block can fall on the clamping block, the triangular block fixedly connected with the sliding block synchronously moves downwards, and the triangular block cannot fall on the second limiting block under the influence of the distance between the triangular block and the second limiting block; the purpose of this design is to avoid that the triangular blocks may have an unwanted effect on the downward movement of the slide.
Preferably, the sliding block is connected with the clamping block through an elastic rope; when the electromagnetic locking device works, when the electromagnet electrified slide block moves upwards, the traction force of the elastic rope can not only prevent the slide block from being blocked when the slide block slides downwards, but also avoid the possibility that the slide block is damaged by impacting the electromagnet too fast when the slide block is attracted by the magnetic force of the electromagnet.
Preferably, the attraction force of the electromagnet to the sliding block is greater than the sum of the pulling force of the elastic rope to the sliding block, the gravity of the triangular block and the sliding block and the limiting acting force of the limiting block to the sliding block; when the electromagnet is powered on, the sliding block is close to the electromagnet, three resistances are provided, namely the downward pulling force of the elastic rope on the sliding block, the gravity of the triangular block and the sliding block and the friction force between the sliding block and the limiting block, but the sum of the resistances is not large in attraction of the electromagnet on the sliding block, so that the sliding block can move to the lower end of the electromagnet and is in contact with the electromagnet, the sliding block can block the door lock, and the effective operation of the power distribution cabinet is guaranteed.
The invention has the following beneficial effects:
1. according to the invention, the electromagnet drives the sliding block to move, so that the switch control of the door lock of the power distribution cabinet is realized, and the power distribution cabinet is not only opened or closed by the door lock, so that the effect that when the power distribution cabinet is powered off, a constructor can quickly open the cabinet door to rush repair electric elements in the power distribution cabinet is achieved, and the safety performance of the power distribution cabinet is further improved.
2. According to the invention, the rubber ring is arranged in the circular groove of the sliding block, so that a maintenance worker only needs to hold the door handle and pull the door handle lightly and forcefully, and the door lock can break away from the block of the rubber ring, so that the cabinet door is opened; the chamfer angle formed on the rubber ring facilitates the door lock to penetrate through the rubber ring, so that the door can be opened more quickly; and the bore of rubber circle inner circle is less than the external diameter of lock, and the rubber circle can block the lock, prevents that the cabinet door from too opening easily.
3. According to the invention, the elastic rope is arranged between the sliding block and the clamping block, so that when the electromagnet is electrified and the sliding block moves upwards, the elastic rope can apply tension to the sliding block, and further, the possibility that the sliding block is damaged due to the fact that the sliding block is collided with the electromagnet too fast when the sliding block is attracted by the magnetic force of the electromagnet is avoided.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a side view of FIG. 3 in the energized state;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is an enlarged view of C in FIG. 4;
in the figure: 1. a cabinet door; 11. a door lock; 2. a cabinet body; 21. an electromagnet; 22. a slider; 221. a circular groove; 222. a rubber ring; 23. a first limiting block; 231. a limiting groove; 24. a triangular block; 25. an elastic cord; 26. a clamping block; 27. a groove; 28. a roller; 29. a second limiting block; 291. and (4) a groove.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the stainless steel explosion-proof power distribution cabinet comprises a cabinet door 1 and a cabinet body 2, wherein the cabinet door 1 is rotatably connected with the cabinet body 2 through a torsion spring, and an electric element is installed inside the cabinet body 2; an electromagnet 21 is arranged on the inner wall of one side, close to the cabinet door 1, of the cabinet body 2, and a sliding groove is arranged below one side, close to the electromagnet 21, of the cabinet body 2; the electromagnet 21 is connected with an internal circuit of the electric power cabinet through an electric wire, and a sliding block 22, a first limiting block 23 and a second limiting block 29 are arranged below the electromagnet 21; the first limiting block 23 and the second limiting block 29 are fixedly connected with the cabinet body 2, the first limiting block 23 is positioned above the second limiting block 29, and limiting grooves 231 are respectively formed in the first limiting block 23 and the second limiting block 29; the sliding block 22 is simultaneously connected in the two limiting grooves 231 in a sliding manner, a circular groove 221 is formed in one side, close to the cabinet door 1, of the sliding block 22, and a clamping block 26 is arranged below the sliding block 22; the fixture block 26 is fixedly connected with the cabinet body 2; the slide block 22 is made of ferrite stainless steel; the circular groove 221 and the sliding groove are both in a circular arch shape; the circular groove 221 formed on the sliding block 22 corresponds to the sliding groove through the blocking of the block 26 when moving downwards; the electromagnet 21 can attract the sliding block 22 to move upwards through magnetic force in an electrified state;
when the power distribution cabinet is in power failure due to carelessness of constructors, a key is required to be found for opening the door for overhauling the power cabinet, time and labor are wasted, and the optimal overhauling time can be delayed seriously, so that the power distribution cabinet is required to be capable of entering the interior of the power distribution cabinet for rapid first-aid repair without directly opening the door lock 11 by the key when the power distribution cabinet is in power failure;
therefore, when the power distribution cabinet is powered off, the electromagnet 21 loses magnetic force, the sliding block 22 slides downwards under the influence of gravity and finally slides onto the upper end face of the clamping block 26, the clamping block 26 can limit the sliding block 22 when moving downwards, at the moment, the position of the sliding block 22, close to the circular groove 221 formed in one side of the cabinet door 1, is just on the same horizontal line with the sliding groove, the door lock 11 is not blocked by the sliding block 22, and a maintenance worker can directly open the power distribution cabinet to maintain by shifting the cabinet door 1; the cabinet door 1 is rotatably connected with the cabinet body 2 through a torsion spring, the torsion spring not only can enable the cabinet door to automatically reset, but also can enable the cabinet door 1 to close the cabinet door 1 in an unlocking state, so that external sundries such as rainwater, wind and dust are prevented from entering the cabinet body 2, and the safety of the power distribution cabinet is guaranteed; when the power distribution cabinet is powered on, the electromagnet 21 in the power distribution cabinet can adsorb the sliding block 22 through magnetic force, the first limiting block 23 and the second limiting block 29 which are arranged below the electromagnet 21 can limit the sliding block 22, the sliding block 22 can move up and down in the limiting groove 231, the position of the circular groove 221 formed in the sliding block 22 and the position of the sliding groove are not on the same horizontal plane, and at the moment, a maintenance worker has already repaired the power failure condition in the power distribution cabinet, can have sufficient time to find a key, and locks the power distribution cabinet by using the key after opening the cabinet door by using the key;
according to the invention, the electromagnet 21 drives the sliding block 22 to move through magnetic force, so that the switch control of the power distribution cabinet door 1 lock is realized, the switch of the power distribution cabinet is controlled not only by the door lock 11, and therefore, the effect that when the power distribution cabinet is powered off, maintenance personnel can quickly open the cabinet door 1 to rush repair electric elements in the power distribution cabinet is achieved, and the timeliness of the maintenance of the power distribution cabinet is ensured.
Preferably, a rubber ring 222 is installed in the circular groove 221; the rubber ring 222 is a semi-circular body, and a chamfer is formed on one side of the rubber ring 222 away from the cabinet door 1; when the power distribution cabinet is powered off, the sliding block 22 which is not influenced by the magnetic force of the electromagnet 21 slides to the same plane with the door lock 11, and because the rubber ring 222 is made of elastic material and is easy to stretch, a maintenance worker only needs to drag the door handle, and the door lock 11 can break away from the blocking of the rubber ring 222, so that the cabinet door 1 is opened; the chamfer angle formed on the rubber ring 222 facilitates the door lock 11 to pass through the rubber ring 222, has a guiding effect on the movement of the door lock 11, prevents deviation between the door lock 11 and the circular groove 221 from not moving out, and enables the door 1 to be opened more conveniently; moreover, the caliber of the inner ring of the rubber ring 222 is smaller than the outer diameter of the door lock 11, the rubber ring 222 completely wraps the door lock 11, the door lock 11 is not in contact with the sliding block 22, and the door lock 11 can be protected.
Preferably, a gap is reserved between one side wall of the sliding block 22 far away from the cabinet body 2 and one side wall corresponding to the limiting groove 231, and the sliding block 22 is fixedly connected with a triangular block 24; the triangular block 24 can be abutted against the lower end opening of the limiting groove 231 of the first limiting block 23 under the action of the sliding block 22; during operation, the electro-magnet 21 of circular telegram adsorbs slider 22 to its lower terminal surface through magnetic force on, and the clearance between slider 22 and the spacing groove 231 not only can reduce the frictional force between the two, but also can make the triangle piece 24 card in the spacing groove 231 between slider 22 and a stopper 23, and slider 22 receives the guide effect of triangle piece 24 can be close to cabinet body 2 when the rebound for thereby slider 22 can hug closely cabinet body 2 and fix slider 22.
Preferably, grooves 27 are symmetrically formed in the groove wall corresponding to the limiting groove 231, and two side walls corresponding to the grooves 27 are slidably connected with the rollers 28; the roller 28 is in contact with the slider 22; during operation, the roller 28 in the groove 27 can reduce the friction force of the slider 22 when sliding in the limiting groove 231, so as to prevent the slider 22 from being jammed when sliding in the limiting groove 231, thereby ensuring the normal operation of the slider 22.
Preferably, the distance between the triangular block 24 and the second limiting block 29 is greater than the distance between the sliding block 22 and the clamping block 26; when the electromagnetic locking device works, the electromagnet 21 is powered off and loses magnetic force to cause the sliding block 22 to move downwards, the sliding block 22 can fall on the clamping block 26, the triangular block 24 fixedly connected with the sliding block 22 synchronously moves downwards, and the triangular block 24 cannot fall on the second limiting block 29 under the influence of the distance between the triangular block 24 and the second limiting block 29; this is done to avoid the triangular blocks 24 from unnecessarily affecting the downward movement of the slides 22.
Preferably, the sliding block 22 is connected with the clamping block 26 through an elastic rope 25; when the electromagnet 21 is electrified, the slide block 22 moves upwards, the traction force of the elastic rope 25 can prevent the slide block 22 from being blocked when sliding downwards, and the possibility that the slide block 22 collides with the electromagnet 21 too fast to damage the slide block 22 when the slide block 22 is attracted by the magnetic force of the electromagnet 21 can be avoided.
Preferably, the attraction force of the electromagnet 21 to the slider 22 is greater than the sum of the pulling force of the elastic rope 25 to the slider 22, the gravity of the triangular block 24 and the slider 22 and the limiting action force of the limiting block to the slider 22; when the power distribution cabinet works, when the electromagnet 21 is electrified, the sliding block 22 is close to the electromagnet 21, three resistances are provided, namely the downward pulling force of the elastic rope 25 on the sliding block 22, the gravity of the triangular block 24 and the sliding block 22 and the friction force between the sliding block 22 and the limiting block, but the sum of the resistances is not larger than the attraction force of the electromagnet 21 on the sliding block 22, so that the sliding block 22 can move to the lower end of the electromagnet 21 and is in contact with the electromagnet 21, the sliding block 22 can block the door lock 11, and the effective operation of the power distribution cabinet is guaranteed.
The specific working process is as follows:
when the electromagnetic limiting device works, the first limiting block 23 and the second limiting block 29 which are arranged below the electromagnet 21 can limit the sliding block 22, the sliding block 22 can move up and down in the limiting groove 231, and the clamping block 26 can limit the sliding block 22 when moving downwards; under the power-on state, the electromagnet 21 in the power distribution cabinet can adsorb the sliding block 22 through magnetic force, the first limiting block 23 and the second limiting block 29 which are arranged below the electromagnet 21 can limit the sliding block 22, the sliding block 22 can move up and down in the limiting groove 231, the position of the circular groove 221 formed in the sliding block 22 and the position of the sliding groove are not on the same horizontal plane, and the sliding block 22 can block the movement of the door lock 11, so that the closing of the power distribution cabinet door 1 lock is realized; the electrified electromagnet 21 absorbs the sliding block 22 to the lower end face of the sliding block 22 through magnetic force, the gap between the sliding block 22 and the limiting groove 231 can reduce the friction force between the sliding block 22 and the limiting groove 231, the triangular block 24 can be clamped in the limiting groove 231 between the sliding block 22 and the first limiting block 23, the sliding block 22 can approach the cabinet body 2 under the guiding action of the triangular block 24 when moving upwards, and the sliding block 22 can be tightly attached to the cabinet body 2 so as to fix the sliding block 22; meanwhile, the roller 28 in the groove 27 can reduce the friction force of the sliding block 22 when sliding in the limiting groove 231, so that the phenomenon of clamping when the sliding block 22 slides in the limiting groove 231 is prevented, and the normal operation of the sliding block 22 is ensured; when the sliding block 22 moves upwards, the elastic rope 25 can apply tension to the sliding block 22, so that the possibility that the sliding block 22 is damaged due to the fact that the sliding block 22 impacts the electromagnet 21 too fast when the sliding block 22 is attracted by the magnetic force of the electromagnet 21 is avoided; when the sliding block 22 approaches the electromagnet 21, three resistances are provided, namely a downward pulling force of the elastic rope 25 to the sliding block 22, a pushing force of the triangular block 24 to the sliding block 22 in the direction approaching the cabinet door 1, and a friction force between the sliding block 22 and a contact surface of the limiting block, but the sum of the resistances is not large in attraction of the electromagnet 21 to the sliding block 22, so that the sliding block 22 can move to the lower end of the electromagnet 21 and contact with the electromagnet 21, the sliding block 22 can block the door lock 11, and the effective operation of the power distribution cabinet is guaranteed; the cabinet door 1 is rotatably connected with the cabinet body 2 through a torsion spring, the torsion spring not only can enable the cabinet door to automatically reset, but also can enable the cabinet door 1 to close the cabinet door 1 in an unlocking state, so that external sundries such as rainwater, wind and dust are prevented from entering the cabinet body 2, and the safety of the power distribution cabinet is guaranteed; when the power distribution cabinet is powered off, the sliding block 22 which is not influenced by the magnetic force of the electromagnet 21 slides to the same plane with the door lock 11, and because the rubber ring 222 is made of elastic material and is easy to stretch, the door lock 11 can break away from the block of the rubber ring 222 only by dragging the door handle by maintenance personnel, and then the cabinet door 1 is opened; the chamfer angle formed on the rubber ring 222 facilitates the door lock 11 to pass through the rubber ring 222, has a guiding effect on the movement of the door lock 11, prevents deviation between the door lock 11 and the circular groove 221 from not moving out, and enables the door 1 to be opened more conveniently; the caliber of the inner ring of the rubber ring 222 is smaller than the outer diameter of the door lock 11, the rubber ring 222 completely wraps the door lock 11, the door lock 11 is not in contact with the sliding block 22, and the door lock 11 can be protected; the electromagnet 21 loses power and loses magnetic force to cause the sliding block 22 to move downwards, the electromagnet 21 can fall on the clamping block 26, the triangular block 24 fixedly connected with the sliding block 22 moves downwards synchronously, and the triangular block 24 cannot fall on the second limiting block 29 under the influence of the distance between the triangular block 24 and the second limiting block 29.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides an explosion-proof power distribution cabinet of stainless steel, includes cabinet door (1) and the cabinet body (2), its characterized in that: the cabinet door (1) is rotatably connected with the cabinet body (2) through a torsion spring, and an electric element is installed inside the cabinet body (2); an electromagnet (21) is arranged on the inner wall of one side, close to the cabinet door (1), of the cabinet body (2), and a sliding groove (27) is arranged below one side, close to the electromagnet (21), of the cabinet body (2); the electromagnet (21) is connected with an internal circuit of the electric power cabinet through an electric wire, and a sliding block (22), a first limiting block (23) and a second limiting block (29) are arranged below the electromagnet (21); the first limiting block (23) and the second limiting block (29) are fixedly connected with the cabinet body (2), the first limiting block (23) is positioned above the second limiting block (29), and limiting grooves (231) are respectively formed in the first limiting block (23) and the second limiting block (29); the sliding block (22) is simultaneously connected in the two limiting grooves (231) in a sliding manner, a circular groove (221) is formed in one side, close to the cabinet door (1), of the sliding block (22), and a clamping block (26) is arranged below the sliding block (22); the fixture block (26) is fixedly connected with the cabinet body (2); the sliding block (22) is made of ferrite stainless steel; the circular groove (221) and the sliding groove (27) are both in a circular arch shape; the circular groove (221) formed in the sliding block (22) corresponds to the sliding groove (27) through the blocking of the clamping block (26) when moving downwards; the electromagnet (21) can attract the sliding block (22) to move upwards through magnetic force in an electrified state.
2. The stainless steel explosion-proof power distribution cabinet of claim 1, characterized in that: a rubber ring (222) is arranged in the circular groove (221); the rubber ring (222) is a semi-circular body, and a chamfer is formed in one side, away from the cabinet door (1), of the rubber ring (222).
3. The stainless steel explosion-proof power distribution cabinet of claim 2, characterized in that: a gap is reserved between one side wall of the sliding block (22) far away from the cabinet body (2) and one side wall corresponding to the limiting groove (231), and the sliding block (22) is fixedly connected with a triangular block (24); the triangular block (24) can abut against the lower end opening of the limiting groove (231) of the first limiting block (23) under the action of the sliding block (22).
4. The stainless steel explosion-proof power distribution cabinet of claim 3, characterized in that: grooves (291) are symmetrically formed in the groove wall corresponding to the limiting groove (231), and two side walls corresponding to the grooves (291) are connected with the roller (28) in a sliding manner; the roller (28) is in contact with the slider (22).
5. The stainless steel explosion-proof power distribution cabinet of claim 4, characterized in that: the distance between the triangular block (24) and the second limiting block (23) is larger than the distance between the sliding block (22) and the clamping block (26).
6. The stainless steel explosion-proof power distribution cabinet of claim 5, characterized in that: the sliding block (22) is connected with the clamping block (26) through an elastic rope (25).
7. The stainless steel explosion-proof power distribution cabinet of claim 6, characterized in that: the attraction force of the electromagnet (21) to the sliding block (22) is greater than the sum of the pulling force of the elastic rope (27) to the sliding block (22), the gravity of the triangular block (24) and the sliding block (22) and the limiting acting force of the limiting block (23) to the sliding block (22).
CN202110917038.5A 2021-08-11 2021-08-11 Stainless steel explosion-proof power distribution cabinet Active CN113700387B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115954773A (en) * 2022-12-13 2023-04-11 武汉盛喻智能科技有限公司 High-voltage distribution box

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CN208738647U (en) * 2018-09-14 2019-04-12 厦门斯玛特工贸有限公司 A kind of power distribution cabinet convenient for inspection
CN208955428U (en) * 2018-09-06 2019-06-07 无锡市昌盛电力建设有限公司 A kind of outdoor type circuit construction power distribution cabinet convenient for assembling
CN210669232U (en) * 2019-11-27 2020-06-02 武汉能众科技有限公司 Outdoor converter control cabinet of new forms of energy
CN210976903U (en) * 2019-09-18 2020-07-10 刘刘 Mute lock of touch button type sliding door

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EP0730075A1 (en) * 1995-03-03 1996-09-04 SORTIMO INTERNATIONAL AUSRÜSTUNGSSYSTEME FÜR SERVICEFAHRZEUGE GmbH Shutter with a parallelogram suspension as well as lower storage box, for a maintenance car with such a shutter
US6700081B1 (en) * 2002-11-18 2004-03-02 Rockwell Automation Technologies, Inc. Fuse block with door sensing rotary disconnect
CN107611800A (en) * 2017-10-29 2018-01-19 江苏华联电力器材有限公司 A kind of power distribution cabinet for being easy to safeguard
CN208955428U (en) * 2018-09-06 2019-06-07 无锡市昌盛电力建设有限公司 A kind of outdoor type circuit construction power distribution cabinet convenient for assembling
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115954773A (en) * 2022-12-13 2023-04-11 武汉盛喻智能科技有限公司 High-voltage distribution box
CN115954773B (en) * 2022-12-13 2023-08-25 河北新大长远电力科技股份有限公司 High-voltage distribution box

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Address after: No. 199, Weihai Road, Dongying, Dongying City, Shandong Province, 257000

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Applicant before: Liu Maofa

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Denomination of invention: A stainless steel explosion-proof power distribution cabinet

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Pledgee: Weihai commercial bank Limited by Share Ltd. Dongying branch

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