CN114069822A - Improve automatically controlled cabinet that security just can emergent start - Google Patents

Improve automatically controlled cabinet that security just can emergent start Download PDF

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Publication number
CN114069822A
CN114069822A CN202111169487.2A CN202111169487A CN114069822A CN 114069822 A CN114069822 A CN 114069822A CN 202111169487 A CN202111169487 A CN 202111169487A CN 114069822 A CN114069822 A CN 114069822A
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CN
China
Prior art keywords
cabinet
push
rod
wheel
groove
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111169487.2A
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Chinese (zh)
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CN114069822B (en
Inventor
董宏利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Yucheng Fire Technology Co ltd
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Guangzhou Yucheng Fire Technology Co ltd
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Priority to CN202111169487.2A priority Critical patent/CN114069822B/en
Publication of CN114069822A publication Critical patent/CN114069822A/en
Application granted granted Critical
Publication of CN114069822B publication Critical patent/CN114069822B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • 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
    • H02B1/306—Accessories, e.g. windows
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Patch Boards (AREA)

Abstract

The invention discloses an electric control cabinet capable of improving safety and being started in an emergency mode, which comprises a cabinet body, a cabinet door, an interlocking structure and a forced contact structure, wherein the cabinet body is provided with a first door and a second door; the front end of the cabinet body is provided with an opening, and one side of the cabinet body is fixedly provided with a mounting wall; a main circuit structure is arranged at the upper end in the cabinet body, and a standby circuit structure is arranged at the lower end in the cabinet body; the interlocking structure is arranged on the cabinet body corresponding to the position of the circuit breaker; compel to touch the structure and include the mount, articulated frame, positioning seat and push-and-pull rod, the mount erects on the internal lower extreme of cabinet, articulated frame's one end is articulated with the mount for articulated frame's the other end can be around articulated end pendulum to stand-by circuit structure, articulated frame is last to be equipped with a plurality of and compels touch bar, the positioning seat is fixed to be set up on the internal surface bottom of installation wall, the push-and-pull rod passes installation wall and positioning seat from the external cabinet and is connected with articulated frame's the other end, be equipped with the lock structure between positioning seat and the push-and-pull rod. When the electric control cabinet needs to supply power to the outside temporarily, the circuit is started in an emergency.

Description

Improve automatically controlled cabinet that security just can emergent start
Technical Field
The invention relates to the technical field of electric control cabinets, in particular to an electric control cabinet which improves safety and can be started in an emergency mode.
Background
The electric control cabinet is common equipment in the electric power field, and relates to all walks of life, and in order to stop the potential safety hazard, the industry also more and more high to the safety requirement of cutting off power supply of electric control cabinet. The power on/off structure in the electric control cabinet mainly comprises a power on/off structure of a main switch circuit used as a main output circuit and a power on/off structure used as a standby circuit and used for carrying out breaking and closing by adopting an alternating current contactor.
In the application of fire fighting, in order to ensure the personal safety of workers when the fire control cabinet is maintained and checked, interlocking is required to be arranged between a current switch of a main output circuit in an electric control cabinet and an opening switch of a door body, namely, the electric control cabinet is disconnected when the door is opened, the electric brake is prevented from being closed again after the door is opened, a further anti-misoperation structure is required to be arranged, and the electric brake can be closed again only after the door is closed; so, the interlocking design between cabinet door and the circuit breaker is just very important, guarantees when the circuit breaker closes a floodgate, in order to guarantee safety, under the circumstances that main output circuit does not cut off the power supply, the cabinet door can not be opened, and only when main output circuit's circuit breaker pulled out, the cabinet door could be opened. However, if the cabinet door is opened, the emergency starting circuit needs to be provided for standby when the main output circuit is powered off or the main output circuit has a circuit problem and cannot supply power, and the electric control cabinet needs to supply power to the outside temporarily, and the power-on and power-off structure of the emergency starting circuit is safe, the switch is disconnected at ordinary times, and the emergency starting circuit is started when the emergency starting is needed.
Disclosure of Invention
The invention aims to provide an electric control cabinet which improves safety and can be started in an emergency mode.
In order to achieve the purpose, the invention provides the following technical scheme:
an electric control cabinet capable of improving safety and being started in an emergency mode comprises a cabinet body, a cabinet door, an interlocking structure and a forced contact structure; the front end of the cabinet body is provided with an opening, one side of the cabinet body is fixedly provided with a mounting wall, and the other side of the front end of the cabinet body correspondingly forms a door frame matched with the cabinet door; the cabinet comprises a cabinet body, a cabinet door and a cabinet door, wherein the cabinet body is internally provided with a main circuit structure at the upper end, a standby circuit structure at the lower end, the main circuit structure is provided with a circuit breaker for opening or closing the main circuit, and the interlocking structure is used for being matched with the circuit breaker to form interlocking between the cabinet door and the circuit breaker so that the circuit breaker is closed and electrified when the cabinet door is closed and opened and power is cut off;
the interlocking structure comprises a brake pusher, a force arm and a pull handle wheel; the switch pushing device is arranged in a cavity of a cabinet body of the electric appliance control cabinet, and the circuit breaker is arranged in the switch pushing device; the pull handle wheel is vertically and rotatably arranged on the installation wall, one half of the pull handle wheel is exposed outside the installation wall, the other half of the pull handle wheel extends into the cavity side and rotates into or out of the cavity side along with the rotation of the pull handle wheel, and two ends of the force arm are respectively hinged to the brake pusher and the pull handle wheel; the pull handle wheel is pushed upwards or downwards to rotate, the power arm is driven to move, and the force arm is hinged to one end of the brake pushing device to switch on or switch off the circuit breaker;
the forced contact structure is used for being matched with a standby circuit of the standby circuit structure and comprises a plurality of alternating current contactors, the forced contact structure comprises a fixed frame, a hinged frame, a positioning seat and a push-pull rod, the fixed frame is erected at the lower end in the cabinet body and located on one side of the standby circuit structure, one end of the hinged frame is hinged to the fixed frame, the other end of the hinged frame can swing towards the standby circuit structure around the hinged end, the hinged frame is provided with a plurality of forced contact rods, the positioning seat is fixedly arranged on the bottom of the inner surface of the installation wall, the push-pull rod penetrates through the installation wall and the positioning seat from the outside of the cabinet body and then is connected with the other end of the hinged frame to push the push-pull rod to swing around the hinged end, a buckling structure is arranged between the positioning seat and the push-pull rod, and when the cabinet door is locked in the door frame, the push-pull rod is pushed into the cabinet and then fixed in a pushed state through the buckling structure, each forced contact rod is pressed against each corresponding alternating current contactor to conduct the standby circuit.
As a further technical scheme of the invention: the interlocking structure comprises an elastic spring bolt and a lock catch plate, the elastic spring bolt is arranged on the inner side surface of the mounting wall and is positioned on one side of the handle wheel, the elastic spring bolt comprises a spring bolt body, a spring bolt rod, an elastic piece and a swing plate, the spring bolt body is fixedly connected to the mounting wall, a mounting groove is formed in the spring bolt body and transversely penetrates through two ends of the spring bolt body, the spring bolt rod is slidably mounted in the mounting groove, and the elastic piece is mounted on the spring bolt rod to provide elastic force to maintain the spring bolt rod to be abutted against the handle wheel; the swing board can articulate the one end of keeping away from the handle wheel on the spring bolt body swingably, realize sheltering from or passing to the port of mounting groove one end through the swing, in order when the cabinet door is opened to needs, break off the floodgate under promoting the handle wheel earlier, the gradual income groove of handle wheel changes over to the cabinet body cavity side into, the one end of spring bolt pole supports under the effect of elastic component to holding gradually in the groove, make the swing board can the lower hem and block the other end of spring bolt pole, and open the back at the cabinet door, block the one end at the spring bolt pole through the swing board, restricted the removal and then the restriction of spring bolt pole the handle wheel pushes up the floodgate.
As a further technical scheme of the invention: the hasp board is installed on the cabinet door, has seted up the hasp hole on it to when the cabinet door closes to the door frame, the hasp board supports earlier and props up the swing board is swung, removes the swing board and blocks to mounting groove one end port, and then promotes the pull handle wheel and go up the switching-on, and the gradual income groove of pull handle wheel is changeed over to the external side of cabinet, and the spring bolt pole is supported and is pushed away, and its one end that is located the swing board is worn out the mounting groove port, and then stretches into to the hasp downthehole, realizes that the cabinet door lock is held on the cabinet body.
As a further technical scheme of the invention: one end of the lock tongue rod facing the handle wheel is fixedly provided with a baffle ring, the baffle ring is accommodated in the mounting groove and abuts against one end of the lock tongue rod facing the handle wheel in the mounting groove through an elastic piece so as to limit the maximum stroke of the lock tongue rod facing one end of the handle wheel.
As a further technical scheme of the invention: the mounting groove comprises a central groove section and slot sections at two ends, the width of the central groove section is wider than that of the slot sections at two ends, the elastic piece is sleeved on the latch rod and is contained in the central groove section in a compression mode, one end of the elastic piece abuts against the retaining ring, and the other end of the elastic piece abuts against the wall of the slot sections so as to provide elastic force for maintaining the latch rod to be pressed against the pull handle wheel.
As a further technical scheme of the invention: the spring bolt body is provided with a limiting groove at one end provided with a swinging plate, the swinging plate is arranged in the limiting groove, and the top end of the swinging plate is hinged with the top of the limiting groove so as to limit the swinging amplitude of the swinging plate; the swing board is the L type, holds the board including articulated board and the perpendicular fender of connecting in articulated board one side, articulated board is planted and is articulated through the pin in the spacing groove, keeps off to hold the board and extends to the spring bolt body outside to when the cabinet door is closed, hasp board jack-up keeps off and holds the board, will articulate the board and follow the spacing groove and put out.
As a further technical scheme of the invention: the pull handle wheel comprises a wheel seat, a main body wheel and a pull handle, a mounting hole is formed in the mounting wall, the wheel seat is mounted on the mounting hole, the main body wheel is rotatably arranged on the wheel seat, the half side of the main body wheel penetrates into the inner side of the mounting wall, a hinge groove is concavely formed in the edge of the main body wheel and is hinged to a force arm through the hinge groove, the pull handle is fixedly connected to the edge of the main body wheel, stretches out of the mounting wall, and the pull handle is upwards or downwards pushed to drive the main body wheel to rotate.
As a further technical scheme of the invention: the push-pull rod penetrates through one end of the cabinet body and is rotatably connected with the other end of the hinged frame around an axial line, the buckling structure comprises a buckling seat cylinder and a locking piece, the buckling seat cylinder is connected to the positioning seat, a central hole for the push-pull rod to penetrate through is formed in the center of the buckling seat cylinder, a guide groove and a buckling opening which is connected to one end of the guide groove and wider than the guide groove are axially formed in the buckling seat cylinder, a blocking surface is correspondingly formed in the buckling opening, the locking piece is convexly arranged on the outer peripheral surface of the push-pull rod and convexly extends into the guide groove, when the push-pull rod is pushed into the cabinet, the locking piece slides along the guide groove, and after the push-pull rod is moved to the position of the buckling opening, the push-pull rod is rotated, so that the locking piece is clamped into the blocking surface of the buckling opening, and the push-pull rod is fixed.
As a further technical scheme of the invention: the positioning seat comprises two side walls and an end wall connected to one end between the two side walls, a mounting plate parallel to the end wall is arranged between the two side walls, a spring is sleeved on the push-pull rod, one end of the spring is fixedly connected to the push-pull rod, and the other end of the spring elastically presses against the mounting plate, so that after the locking of the push-pull rod is released, the spring provides elastic force to push the push-pull rod to return outwards.
Compared with the prior art, the invention has the beneficial effects that: the invention provides an electric control cabinet which improves safety and can be started in an emergency mode, and the electric control cabinet is interlocked between a cabinet body, a cabinet door, an interlocking structure and a forced contact structure through the interlocking structure, so that when the electric control cabinet is switched on and electrified, the cabinet door is locked in a door frame, and when the cabinet door is locked in the cabinet body, if a main output circuit has a circuit problem and cannot supply power, the electric control cabinet needs to temporarily supply power to the outside, a contact of an alternating current contactor can be forced to be closed through the forced contact structure, and a standby circuit is started in an emergency mode.
Drawings
Fig. 1 is a schematic diagram of an emergency electric control cabinet.
Fig. 2 is another view of fig. 1.
Fig. 3 is a structural view of the forced touch structure.
Fig. 4 is another view of fig. 3.
Fig. 5 is a structural view of the interlocking structure.
Fig. 6 is a schematic diagram of the operation of the interlocking structure.
Fig. 7 is a schematic view of the main body wheel.
Fig. 8 is a schematic view of an elastic bolt.
Fig. 9 is an internal view of the resilient latch bolt.
Fig. 10 is a schematic view of the strike plate.
Fig. 11 is a schematic view of an elastic bolt.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration and explanation only and are not intended to limit the scope of the invention.
Referring to fig. 1, 2, 3 and 4, an electric control cabinet capable of improving safety and being started in emergency includes a cabinet body 10, a cabinet door 20, an interlocking structure 30 and a forced contact structure 40; the cabinet body 10 comprises a main board body 11 arranged at the rear end of the cabinet body 10, the front end of the cabinet body 10 is open, one side of the cabinet body 10 is fixedly provided with a mounting wall 12 opposite to the main board body 11, and the other side of the front end of the cabinet body 10 correspondingly forms a door frame 101 matched with the cabinet door 20; the cabinet body 10 is provided with a main circuit structure at the upper end of the inner surface of the main board body 11, and a standby circuit structure 14 at the lower end, wherein the main circuit structure is provided with a circuit breaker 13 for opening or closing the main circuit; the interlocking structure 30 and the circuit breaker 13 are correspondingly arranged on the cabinet body 10, so that interlocking is formed between the cabinet door 20 and the circuit breaker 13, the electric control cabinet is switched on and electrified, and the cabinet door 20 is locked in the door frame 101; the forced contact structure 40 is used for matching with a standby circuit of the standby circuit structure 14 and comprises a plurality of alternating current contactors 141, the forced contact structure 40 comprises a fixed frame 41, a hinged frame 42, a positioning seat 43 and a push-pull rod 44, the fixed frame 41 is erected at the lower end in the cabinet body 10, particularly, the fixed frame 41 is arranged at the bottom of the inner surface of the main board body 11 and is positioned at one side of the standby circuit structure 14, one end of the hinged frame 42 is hinged with the fixed frame 41, so that the other end of the hinged frame 42 can swing towards the standby circuit structure 14 around the hinged end, the hinged frame 42 is provided with a plurality of forced contact rods 421, the positioning seat 43 is fixedly arranged at the bottom of the inner surface of the mounting wall 12, the push-pull rod 44 penetrates through the mounting wall 12 and the positioning seat 43 from the outside of the cabinet body 10 and then is connected with the other end of the hinged frame 42 to drive the push-pull rod 44 to swing around the hinged end, a buckling structure 45 is arranged between the positioning seat 43 and the push-pull rod 44, when the cabinet door 20 is locked in the door frame 101, after the push-pull rod 44 is pushed into the cabinet, the pushed state of the push-pull rod 44 is fixed by the buckling structure 45, and each forced contact rod 421 stably presses against each ac contactor 141 corresponding to the standby circuit structure 14.
Further, one end of the push-pull rod 44 penetrating into the cabinet 10 is rotatably connected to the other end of the hinge frame 42 around the axis, and a T-shaped handle 441 is disposed at one end of the push-pull rod 44 located outside the cabinet 10.
Further, the fastening structure 45 includes a fastener barrel 451 and a locking member 452, the fastener barrel 451 is connected to the positioning seat 43, a central hole for the push-pull rod 44 to pass through is formed in the center of the fastener barrel 451, a guide groove 401 and a fastener opening 402 connected to one end of the guide groove 401 and having a width wider than that of the guide groove 401 are formed in the fastener barrel 451 along the axial direction, and a retaining surface is correspondingly formed in the fastener opening 402, the locking member 452 is protruded on the outer circumferential surface of the push-pull rod 44 and protruded into the guide groove 401, so that when the push-pull rod 44 is pushed into the cabinet, the locking member 452 slides along the guide groove 401, and after the push-pull rod 44 moves to the position of the fastener opening 402, the push-pull rod 44 is rotated to enable the locking member 452 to be clamped into the retaining surface of the fastener opening 402, thereby fixing the push-pull rod 44.
Further, the positioning seat 43 includes two side walls 431 and an end wall 432 connected to one end between the two side walls 431, a mounting plate 433 parallel to the end wall 432 is disposed between the two side walls 431, a spring 434 is sleeved on the push-pull rod 44, one end of the spring 434 is fixedly connected to the push-pull rod 44, and the other end of the spring 434 elastically presses against the mounting plate 433, so that after the locking of the push-pull rod 44 is released, the spring 434 provides an elastic force to push the push-pull rod 44 to return outward.
Further, the forced contact structure 40 includes a rod sleeve seat 46 disposed on the push-pull rod 44, one end of the rod sleeve seat 46 is mounted on the outer side surface of the mounting wall 12, and the other end of the rod sleeve seat 46 extends into the positioning seat 43 through the mounting wall 12.
Further, referring to fig. 5, 6 and 7, the interlocking structure 30 includes a brake pusher 31, a force arm 32 and a pull handle wheel 33, the brake pusher 31 is installed in the cavity of the cabinet 10, and the circuit breaker 13 is disposed in the brake pusher 31; pull handle wheel 33 is perpendicular and rotationally installs on installation wall 12 top, and one half of pull handle wheel 33 exposes in installation wall 12 outside, and another half stretches into in the cavity side, pull handle wheel 33 has seted up gradually-going groove 301 towards on the terminal surface of one side of cabinet door 20, changes into or changes out the cavity side along with the rotation of pull handle wheel 33, the both ends of arm of force 32 articulate respectively to push away floodgate ware 31 and pull handle wheel 33 on, rotate through upwards or pushing down pull handle wheel 33, take power arm 32 to move, arm of force 32 articulates the one end that pushes away floodgate ware 31 and closes a floodgate or the floodgate of pulling away circuit breaker 13.
With reference to fig. 8, 9, 10 and 11, the interlocking structure 30 further includes an elastic latch 34 and a lock catch plate 35, the elastic latch 34 is disposed on the inner side of the mounting wall 12 and located on one side of the handle wheel 33, the elastic latch 34 includes a latch body 341, a latch rod 342, an elastic member 343 and a swing plate 344, the latch body 341 is fixedly connected to the mounting wall 12, the latch body 341 is provided with a mounting groove 51 transversely penetrating through two ends of the latch body 341, the latch rod 342 is slidably mounted in the mounting groove 51, and the elastic member 343 is mounted on the latch rod 342 to provide elastic force to maintain the latch rod 342 to abut against the handle wheel 33; the swinging plate 344 is swingably hinged to one end of the lock tongue body 341, which is far away from the handle wheel 33, and is used for shielding or passing through a port at one end of the mounting groove 51 through swinging, so that when the cabinet door 20 needs to be opened, the handle wheel 33 is pushed to rotate downwards to break a brake, the gradually-entering groove 301 of the handle wheel 33 is turned into the chamber side of the cabinet body 10, one end of the lock tongue rod 342 is abutted into the gradually-entering groove 301 under the action of the elastic piece 343, so that the swinging plate 344 can swing downwards and block the other end of the lock tongue rod 342, and after the cabinet door 20 is opened, one end of the lock tongue rod 342 is blocked by the swinging plate 344, so that the movement of the lock tongue rod 342 is limited, and the pushing and closing of the handle wheel 33 are further limited;
the latch plate 35 is installed on the cabinet door 20, and a latch hole 351 is formed in the latch plate 35, so that when the cabinet door 20 is closed to the door frame 101, the latch plate 35 firstly abuts against the swing plate 344 to swing, the blocking of the swing plate 344 to the port of one end of the installation groove 51 is removed, the pull handle wheel 33 is pushed to rotate upwards to be switched on, the gradually-entering groove 301 of the pull handle wheel 33 is shifted into the outer side of the cabinet body 10, the lock tongue rod 342 is pushed, one end of the lock tongue rod 344 located at the end of the swing plate 344 penetrates out of the port of the installation groove 51, and then extends into the latch hole 351, so that the cabinet door 20 is locked on the cabinet body 10.
Further, a stop ring 52 is fixedly arranged on one end of the latch rod 342 facing the handle wheel 33, the stop ring 52 is accommodated in the installation groove 51, and is abutted against one end of the handle wheel 33 in the installation groove 51 through an elastic member 343, so as to limit the maximum stroke of the latch rod 342 facing one end of the handle wheel 33.
Further, the mounting groove 51 includes a central groove section 511 and slot sections 512 at two ends, the width of the central groove section 511 is wider than the width of the slot sections 512 at two ends, the elastic member 343 is sleeved on the latch rod 342 and is compressively accommodated in the central groove section 511, one end of the elastic member 343 abuts against the retaining ring 52, and the other end abuts against the wall of the slot section 512, so as to provide an elastic force for maintaining the latch rod 342 to press against the handle wheel 33.
Further, the pull handle wheel 33 includes a wheel seat 331, a main body wheel 332 and a pull handle 333, a mounting hole has been opened on the mounting wall 12, the wheel seat 331 is installed on the mounting hole, the main body wheel 332 is rotationally arranged on the wheel seat 331, the half side of the main body wheel 332 penetrates to the inner side of the mounting wall 12, a hinge groove is concavely provided on the edge of the main body wheel 332, the hinge groove is hinged with the force arm 32, the pull handle 333 is fixedly connected on the edge of the main body wheel 332, extends out of the mounting wall 12, and the pull handle 333 is pushed upwards or downwards to drive the main body wheel 332 to rotate.
Further, the brake pushing device 31 includes a base 311 and a brake pushing member 312 hinged to the base 311 at the bottom end, the circuit breaker 13 is fixedly disposed on the base 311, the top end of the brake pushing member 312 is hinged to the force arm 32, and when the pull handle wheel 33 is pushed up or down to rotate, the force arm 32 drives the brake pushing member 312 to swing to cooperate with the circuit breaker 13, so as to switch on or off the circuit breaker 13.
Furthermore, a limit groove 53 is formed in one end of the bolt body 341, where the swing plate 344 is installed, the swing plate 344 is installed in the limit groove 53, and the top end of the swing plate 344 is hinged to the top of the limit groove 53 to limit the swing amplitude of the swing plate 344; the swing plate 344 is L-shaped, and includes a hinge plate portion 3441 and a retaining plate portion 3442 vertically connected to one side of the hinge plate portion 3441, the hinge plate portion 3441 is inserted into the limiting groove 53 and hinged by a pin, the retaining plate portion 3442 extends to the outside of the latch body 341, so that when the cabinet door 20 is closed, the locking plate 35 pushes up the retaining plate portion 3442 to swing the hinge plate portion 3441 out of the limiting groove 53.
Further, the locking plate 35 is L-shaped, and includes a first plate portion 352 and a second plate portion 353 perpendicular to the first plate portion 352, the first plate portion 352 is attached and fixed to the cabinet door 20, a flange 354 extends from a top end of the second plate portion 353, and the retaining plate portion 3442 is supported by the flange 354.
The interlocking structure 30 on the electric control cabinet in this embodiment realizes an interlocking method between the cabinet door 20 and the circuit breaker 13, as follows:
when the cabinet door 20 is in a closed state, one end of the lock catch plate 35 jacks up the swing plate 344, and one end of the latch bolt rod 342, which is located on the swing plate 344, penetrates through the port of the installation groove 51 and extends into the lock catch hole 351, so that the cabinet door 20 is locked on the cabinet body 10; at the moment, the pull handle wheel 33 is pushed to rotate upwards, the electric control cabinet is in a switch-on power-on state, the gradually-entering groove 301 of the pull handle wheel 33 is positioned outside the mounting wall 12, and one end of the bolt rod 342, which is opposite to the swinging plate 344, abuts against the end face of the pull handle wheel 33 and does not enter the gradually-entering groove 301;
when the cabinet door 20 needs to be opened, the pull handle wheel 33 is firstly pulled downwards, so that the electric control cabinet is in a power-off state, the gradually-entering groove 301 of the pull handle wheel 33 is turned into the inner side of the cabinet body 10, one end of the bolt rod 342, which is opposite to the swinging plate 344, is propped against the gradually-entering groove 301 under the action of the elastic piece 343, one end of the bolt rod 342, which is located at the swinging plate 344, is separated from the lock catch hole 351 and retreats into the mounting groove 51, the locking of the cabinet door 20 is released, the cabinet door 20 is opened, meanwhile, the swinging plate 344 swings downwards and blocks one end of the mounting groove 51, and one end of the bolt rod 342, which is located at the swinging plate 344, is blocked to move towards the side of the cabinet door 20, so that the pull handle wheel 33 is pulled upwards, and the circuit in the electric control cabinet is ensured to be in the power-off state after the door is opened;
when the door 20 needs to be closed, the door 20 is closed to the door frame 101, the latch plate 35 jacks up the swing plate 344 first, the blocking of the swing plate 344 at one end of the installation groove 51 is removed, so that the latch rod 342 located at one end of the swing plate 344 can move towards the direction of the door 20, then the handle wheel 33 is pushed up, the gradually-entering groove 301 of the handle wheel 33 is shifted to the outer side of the installation wall 12, the handle wheel 33 jacks up the latch rod 342 to move towards the direction of the door 20, one end of the latch rod 342 is sleeved into the latch hole 351, the door 20 is locked on the cabinet body 10, and at the moment, the electric control cabinet is in a closing power-on state.
It can be understood that, when the electric control cabinet is in a closing power-on state, the cabinet door 20 is locked on the cabinet body 10, but the situation that the contacts of the ac contactor 141 cannot be closed occurs, the emergency method of the electric control cabinet is as follows: the push-pull rod 44 is pushed into the cabinet to drive the hinge frame 42 to swing inward around the hinge point with the fixed frame 41 in the cabinet 10, each contact forcing rod 421 presses against the corresponding ac contactor 141 to force the contacts of the ac contactor 141 to be closed, and then the push-pull rod 44 is rotated to clamp the locking piece 452 into the locking opening 402, so as to fix the pushed state of the push-pull rod 44, and thus to maintain the contacts of the ac contactor 141 to be closed.
In summary, according to the electric control cabinet capable of improving safety and being started in emergency, through cooperation among the cabinet body 10, the cabinet door 20, the interlocking structure 30 and the forced contact structure 40, interlocking is formed between the cabinet door 20 and the circuit breaker 13 through the interlocking structure 30, so that when the electric control cabinet is switched on and powered on, the cabinet door 20 is locked in the door frame 101, and when the cabinet door 20 is locked in the cabinet body 10, if the main output circuit has a circuit problem and cannot supply power, the electric control cabinet needs to temporarily supply power to the outside, the contact of the alternating current contactor 141 can be forced to be closed through the forced contact structure 40, and the circuit is started in emergency.
Any combination of the various embodiments of the present invention should be considered as disclosed in the present invention, unless the inventive concept is contrary to the present invention; within the scope of the technical idea of the invention, any combination of various simple modifications and different embodiments of the technical solution without departing from the inventive idea of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. An electric control cabinet capable of improving safety and being started in an emergency mode comprises a cabinet body (10), a cabinet door (20), an interlocking structure (30) and a forced contact structure (40); the front end of the cabinet body (10) is open, one side of the cabinet body is fixedly provided with a mounting wall (12), and the other side of the front end of the cabinet body (10) correspondingly forms a door frame (101) matched with the cabinet door (20); a main circuit structure is arranged at the upper end in the cabinet body (10), a standby circuit structure (14) is arranged at the lower end, the main circuit structure is provided with a circuit breaker (13) for opening or closing the main circuit, the interlocking structure (30) is used for being matched with the circuit breaker (13) to enable the cabinet door (20) and the circuit breaker (13) to form interlocking, so that when the cabinet door is closed, the circuit breaker (13) is closed and electrified, and when the cabinet door is opened, the circuit breaker (13) is opened and powered off; the method is characterized in that:
the interlocking structure (30) comprises a brake pushing device (31), a force arm (32) and a pull handle wheel (33); the switch pushing device (31) is installed in a cavity of a cabinet body (10) of the electric appliance control cabinet, and the circuit breaker (13) is arranged in the switch pushing device (31); the pull handle wheel (33) is vertically and rotatably arranged on the installation wall (12), one half of the pull handle wheel (33) is exposed outside the installation wall (12), the other half of the pull handle wheel extends into the cavity side and rotates into or out of the cavity side along with the rotation of the pull handle wheel (33), and two ends of the force arm (32) are respectively hinged to the brake pusher (31) and the pull handle wheel (33); the pull handle wheel (33) is pushed upwards or downwards to rotate, the power arm (32) is driven to move, and one end of the force arm (32) is hinged to the brake pushing device (31) to switch on or switch off the circuit breaker (13);
the forced contact structure (40) is used for being matched with a standby circuit of the standby circuit structure (14) and comprises a plurality of alternating current contactors (141), the forced contact structure (40) comprises a fixing frame (41), a hinged frame (42), a positioning seat (43) and a push-pull rod (44), the fixing frame (41) is erected at the lower end in the cabinet body (10) and is positioned on one side of the standby circuit structure (14), one end of the hinged frame (42) is hinged with the fixing frame (41) so that the other end of the hinged frame (42) can swing towards the standby circuit structure (14) around the hinged end, the hinged frame (42) is provided with a plurality of forced contact rods (421), the positioning seat (43) is fixedly arranged at the bottom of the inner surface of the mounting wall (12), and the push-pull rod (44) penetrates through the mounting wall (12) and the positioning seat (43) from the outside of the cabinet body (10) and then is connected with the other end of the hinged frame (42), the cabinet door is used for pushing the push-pull rod (44) to swing around the hinged end, a buckling structure (45) is arranged between the positioning seat (43) and the push-pull rod (44), when the cabinet door (20) is locked in the door frame (101), the push-pull rod (44) is pushed into the cabinet, the pushed state of the push-pull rod (44) is fixed through the buckling structure (45), and each forced contact rod (421) is pressed against each corresponding alternating current contactor (141) to conduct a standby circuit.
2. The electric control cabinet according to claim 1, wherein: the interlocking structure comprises an elastic bolt (34) and a lock catch plate (35), the elastic bolt (34) is arranged on the inner side surface of the mounting wall (12) and positioned on one side of the handle wheel (33), the elastic bolt (34) comprises a bolt body (341), a bolt rod (342), an elastic piece (343) and a swinging plate (344), the bolt body (341) is fixedly connected to the mounting wall (12), the bolt body (341) is provided with a mounting groove (51) which transversely penetrates through two ends of the bolt body (341), the bolt rod (342) is slidably mounted in the mounting groove (51), and the elastic piece (342) is mounted on the bolt rod (342) to provide elastic force to maintain the bolt rod (342) to abut against the handle wheel (33); the swing plate (344) is hinged to one end, far away from the handle wheel (33), of the lock tongue body (341) in a swing mode, the shielding or passing of a port at one end of the installation groove (51) is achieved through swing, when a cabinet door (20) needs to be opened, the handle wheel (33) is pushed to rotate downwards to break off a brake, the gradually-entering groove (301) of the handle wheel (33) is rotated to the chamber side of the cabinet body (10), one end of the lock tongue rod (342) abuts against the inside of the gradually-entering groove (301) under the action of the elastic piece (343), the swing plate (344) can swing downwards and block the other end of the lock tongue rod (342), and after the cabinet door (20) is opened, one end of the lock tongue rod (342) is blocked through the swing plate (344), the movement of the lock tongue rod (342) is limited, and the brake pushing on the handle wheel (33) is further limited.
3. The electric control cabinet according to claim 2, wherein: the utility model discloses a cabinet, including cabinet door (10), hasp board (35), swing board (344), lock tongue pole (342), its one end that is located swing board (344) is worn out mounting groove (51) port, and then the switching-on is gone up to promotion pull handle wheel (33), gradually income groove (301) of pull handle wheel (33) change over into to the cabinet body (10) outside, lock tongue pole (342) are supported and are pushed away to hasp board (35) are installed on cabinet door (20), have seted up hasp hole (351) on it to when cabinet door (20) closes to the door frame on, hasp board (35) support earlier the top swing board (344), remove the blockking of swing board (344) to mounting groove (51) one end port, and then stretch into in hasp hole (351), realize that cabinet door (20) lock is held on cabinet body (10).
4. The electric control cabinet according to claim 2, wherein: a stop ring (52) is fixedly arranged at one end of the lock tongue rod (342) facing the handle wheel (33), the stop ring (52) is accommodated in the mounting groove (51) and is propped against one end of the lock tongue rod (342) facing the handle wheel (33) in the mounting groove (51) through an elastic piece (343) so as to limit the maximum stroke of the lock tongue rod (342) facing one end of the handle wheel (33).
5. The electric control cabinet according to claim 4, wherein: the mounting groove (51) comprises a central groove section (511) and slot sections (512) at two ends, the width of the central groove section (511) is wider than that of the slot sections (512) at the two ends, the elastic piece (343) is sleeved on the latch rod (342) and is compressively accommodated in the central groove section (511), one end of the elastic piece (343) abuts against the retaining ring (52), and the other end abuts against the wall of the slot section (512), so that elastic force for maintaining the latch rod (342) to be pressed against towards the pull handle wheel (33) is provided.
6. The electric control cabinet according to claim 2, wherein: a limiting groove (53) is formed in one end, provided with a swinging plate (344), of the bolt body (341), the swinging plate (344) is installed in the limiting groove (53), and the top end of the swinging plate (344) is hinged to the top of the limiting groove (53) so as to limit the swinging amplitude of the swinging plate (344); the swinging plate (344) is L-shaped and comprises a hinged plate part (3441) and a retaining plate part (3442) vertically connected to one side of the hinged plate part (3441), the hinged plate part (3441) is inserted into the limiting groove (53) and hinged through a pin, and the retaining plate part (3442) extends to the outer side of the bolt body (341) so that when the cabinet door (20) is closed, the locking plate (35) jacks up the retaining plate part (3442) to swing the hinged plate part (3441) out of the limiting groove (53).
7. The electric control cabinet according to claim 1, wherein: the utility model discloses a pull handle wheel, including wheel seat (331), main part wheel (332) and pull handle (333), the mounting hole has been seted up in installation wall (12), wheel seat (331) are installed on the mounting hole, main part wheel (332) rotationally set up on wheel seat (331), and the half side of main part wheel (332) penetrates to installation wall (12) inboard, the concave hinge groove that is equipped with in border of main part wheel (332), through hinge groove and arm of force (32) articulated, pull handle (333) rigid coupling is on the border of main part wheel (332), stretches out in installation wall (12) outside, through upwards or pushing down pull handle (333), drives main part wheel (332) and rotates.
8. The electric control cabinet according to claim 1, wherein: the push-pull rod (44) penetrates through one end of the cabinet body (10) and is rotatably connected with the other end of the hinge frame (42) around an axis, the buckling structure (45) comprises a buckling seat barrel (451) and a locking piece (452), the buckling seat barrel (451) is connected to the positioning seat (43), a central hole for the push-pull rod (44) to penetrate through is formed in the center of the buckling seat barrel (451), a guide groove (401) and a buckling opening (402) which is connected to one end of the guide groove (401) and wider than the guide groove (401) are formed in the buckling seat barrel (451) along the axial direction, a blocking surface is correspondingly formed in the buckling opening (402), the locking piece (452) is convexly arranged on the outer peripheral surface of the push-pull rod (44) and protrudes into the guide groove (401), so that when the push-pull rod (44) is pushed into the cabinet, the locking piece (452) slides along the guide groove (401) and moves to the position of the buckling opening (402), the push-pull rod (44) is rotated to enable the locking piece (452) to be clamped into the retaining surface of the locking buckle opening (402), and therefore the push-pull rod (44) is fixed.
9. The electric control cabinet according to claim 8, wherein: the positioning seat (43) comprises two side walls (431) and an end wall (432) connected to one end between the two side walls (431), a mounting plate (433) parallel to the end wall (432) is arranged between the two side walls (431), a spring (434) is sleeved on the push-pull rod (44), one end of the spring (434) is fixedly connected to the push-pull rod (44), and the other end of the spring presses against the mounting plate (433), so that after the locking of the push-pull rod (44) is released, the spring (434) provides elastic force to push the push-pull rod (44) to return outwards.
CN202111169487.2A 2021-10-08 2021-10-08 Electric control cabinet capable of improving safety and being started in emergency Active CN114069822B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111169487.2A CN114069822B (en) 2021-10-08 2021-10-08 Electric control cabinet capable of improving safety and being started in emergency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111169487.2A CN114069822B (en) 2021-10-08 2021-10-08 Electric control cabinet capable of improving safety and being started in emergency

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CN114069822A true CN114069822A (en) 2022-02-18
CN114069822B CN114069822B (en) 2023-11-10

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107069464A (en) * 2017-06-06 2017-08-18 信阳师范学院 Switch cubicle and its cabinet door interlock
CN206471693U (en) * 2016-12-19 2017-09-05 浙江中电开关有限公司 A kind of power distribution cabinet
CN110391099A (en) * 2019-08-29 2019-10-29 武汉理工大学 A kind of switchgear cabinet door interlock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206471693U (en) * 2016-12-19 2017-09-05 浙江中电开关有限公司 A kind of power distribution cabinet
CN107069464A (en) * 2017-06-06 2017-08-18 信阳师范学院 Switch cubicle and its cabinet door interlock
CN110391099A (en) * 2019-08-29 2019-10-29 武汉理工大学 A kind of switchgear cabinet door interlock

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