CN111555133B - Guarantee type cubical switchboard of quick action - Google Patents
Guarantee type cubical switchboard of quick action Download PDFInfo
- Publication number
- CN111555133B CN111555133B CN202010414398.9A CN202010414398A CN111555133B CN 111555133 B CN111555133 B CN 111555133B CN 202010414398 A CN202010414398 A CN 202010414398A CN 111555133 B CN111555133 B CN 111555133B
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- China
- Prior art keywords
- arc extinguishing
- rod
- shell
- driving
- static conductive
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
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- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H2003/326—Driving mechanisms, i.e. for transmitting driving force to the contacts using bearings
Abstract
The invention discloses a fast-acting guarantee type switch cabinet, which comprises: the cabinet body comprises a cabinet shell and a cabinet door, and the cabinet door is arranged on the cabinet shell; the driving part is arranged on the circuit breaking protective shell and comprises a driving sliding part, a driving automatic part and a driving manual part, the driving sliding part is arranged on the arc extinguishing base, and the driving automatic part and the driving manual part are both arranged on the driving sliding part; the conductive part is arranged on the arc extinguishing shell and comprises a dynamic conductive part and a static conductive part, and the dynamic conductive part and the static conductive part are both arranged on the arc extinguishing base; the movable conductive piece comprises a rotary pushing piece, a movable conductive rod and a movable conductive contact, the rotary pushing piece is arranged on the arc extinguishing base, the movable conductive rod is arranged on the rotary pushing piece, and the movable conductive contact is arranged on the movable conductive rod; the invention has the advantages of reasonable structural design, compact structure, high switching-off speed, excellent arc extinguishing effect and high safety and reliability.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a fast-acting guarantee type switch cabinet.
Background
The switch cabinet is an electrical device, the external line of the switch cabinet firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. Such as meters, automatic controls, magnetic switches of motors, various alternating current contactors and the like, and a low-pressure chamber and a high-voltage bus are also arranged. The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. In recent years, the power industry in China is rapidly developed, and an unattended management mode and a comprehensive automation mode of a transformer substation are popularized in a power system, so that the safe operation of a switch cabinet becomes very important.
Disclosure of Invention
In order to overcome the defects, the invention provides a fast-acting guaranteed switch cabinet, which specifically adopts the following technical scheme:
a fast-acting safety switch cabinet comprising:
the cabinet body comprises a cabinet shell and a cabinet door, and the cabinet door is arranged on the cabinet shell; the circuit breaking protective shell is arranged on the cabinet shell and comprises an arc extinguishing shell and a driving shell, and the driving shell is arranged on the arc extinguishing shell; the arc extinguishing shell comprises an arc extinguishing base and an arc extinguishing cover, and the arc extinguishing cover is arranged on the arc extinguishing base.
The driving part is arranged on the circuit breaking protective shell and comprises a driving sliding part, a driving automatic part and a driving manual part, the driving sliding part is arranged on the arc extinguishing base, and the driving automatic part and the driving manual part are both arranged on the driving sliding part.
The conductive part is arranged on the arc extinguishing shell and comprises a dynamic conductive part and a static conductive part, and the dynamic conductive part and the static conductive part are both arranged on the arc extinguishing base; the movable conductive piece comprises a rotary pushing piece, a movable conductive rod and a movable conductive contact, the rotary pushing piece is arranged on the arc extinguishing base, the movable conductive rod is arranged on the rotary pushing piece, and the movable conductive contact is arranged on the movable conductive rod; the driving automatic part enables the driving sliding part to reciprocate along a straight line, the driving sliding part enables the rotary pushing part to reciprocate and rotate along the circumferential direction, and the driving sliding part drives the movable conductive contact and the static conductive part to be closed or disconnected through the movable conductive rod so as to realize the closing or the disconnection of the fast-acting guarantee type switch cabinet.
Preferably, the cabinet shell is in a rectangular groove shape, end face partition plates are arranged on two end faces of the cabinet shell, and supporting legs are arranged at four corners outside the end face partition plates at one end of the cabinet shell; a fixed seat is horizontally arranged on the inner side surface of the bottom of the cabinet shell, the fixed seat is in a dovetail block shape, and the length of the fixed seat is smaller than the width of the cabinet shell; the cabinet door is a vertical hinged door, and the cabinet door is hinged to the notch of the cabinet shell.
Preferably, the arc extinguishing shell comprises an arc extinguishing base and an arc extinguishing cover, the arc extinguishing base is in a rectangular groove shape, end face seal plates are arranged on two end faces of the arc extinguishing base, the end face seal plates can completely seal two end faces of the arc extinguishing base, and the size of the arc extinguishing base is smaller than that of the cabinet shell; the end face sealing plate at one end of the arc extinguishing base is provided with three upper through holes, the upper through holes are transversely and uniformly distributed along the arc extinguishing base, the end face sealing plate at the other end of the arc extinguishing base is provided with three lower through holes, and the lower through holes are transversely and uniformly distributed along the arc extinguishing base; a sliding through hole is formed in one side wall of the arc extinguishing base, and a sliding pipe is embedded in the sliding through hole; the arc extinguishing base is characterized in that a plurality of fixing screw holes are formed in the notch of the arc extinguishing base and are uniformly distributed on the notch of the arc extinguishing base.
Preferably, a fixing groove is formed in the outer side surface of the bottom of the arc extinguishing base, the fixing groove is in a dovetail groove shape, the fixing groove is matched with the fixing seat, and the fixing groove is buckled on the fixing seat; the arc extinguishing base is characterized in that a rotating pipe is fixedly arranged on the inner side face of the bottom of the arc extinguishing base, the rotating pipe is perpendicular to the bottom of the arc extinguishing base, and the number of the rotating pipes is three.
The arc extinguishing cover is rectangular plate-shaped, an observation through hole is formed in the arc extinguishing cover, and a transparent plate is embedded in the observation through hole; the arc extinguishing cover is characterized in that a plurality of fixing through holes are uniformly distributed on the side edge of the arc extinguishing cover, the positions of the fixing through holes correspond to the positions of the fixing screw holes, screws are embedded in the fixing through holes and matched with the fixing screw holes, and the arc extinguishing cover is fixedly arranged on the notch of the arc extinguishing base through the screws; the driving shell is box-shaped, a box opening of the driving shell is fixedly arranged on one side wall of the arc extinguishing base, the sliding tube is located in the box opening of the driving shell, and a hinged through hole is formed in the side face of the driving shell.
Preferably, the driving sliding part comprises a pull rod, a buffering force application plate and a buffering force application spring, the pull rod is arranged on the arc extinguishing base, and the buffering force application plate and the buffering force application spring are both arranged on the pull rod; the pull rod comprises a metal pull rod and an insulating rack, the metal pull rod is arranged on the arc extinguishing base, and the insulating rack is arranged on the metal pull rod; the metal pull rod is cylindrical, the length of the metal pull rod is larger than that of the sliding pipe, the metal pull rod is embedded in the sliding pipe, and the metal pull rod is connected with the sliding pipe in a reciprocating sliding sealing mode.
Preferably, the insulating rack is made of an insulating material, one end of the insulating rack is fixedly connected with one end of the metal pull rod, and the axis of the insulating rack is overlapped with the axis of the metal pull rod; the buffering force application plate is plate-shaped, a buffering force application through hole is formed in the center of the buffering force application plate, and the buffering force application plate is fixedly sleeved on one end of the metal pull rod through the buffering force application through hole; the buffering force application spring is sleeved at one end of the metal pull rod and is positioned between the buffering force application plate and one side wall of the arc extinguishing base.
Preferably, the driving automatic part comprises a magnetic coil, a driving power supply and a driving switch, the magnetic coil is arranged on the metal pull rod, the driving switch is arranged on the magnetic coil, and the driving power supply is electrically connected with the magnetic coil; the inner diameter of the magnetic coil is larger than the diameter of the metal pull rod, the magnetic line of force is sleeved on the other end of the metal pull rod, and leads at two ends of the magnetic coil penetrate through the driving shell to be connected with the driving power supply; the driving switch comprises an automatic driving switch and a manual driving switch, the automatic driving switch is arranged on the lead at one end of the magnetic coil, and the manual driving switch is connected on the lead at one end of the magnetic coil in parallel, so that the manual driving switch and the automatic driving switch are connected in parallel.
Preferably, the drive finger comprises a manual drive grip and a locking member, both disposed on the drive housing; the manual driving handle is in a boomerang shape, one end of the manual driving handle is hinged with the other end of the metal pull rod, the other end of the manual driving handle penetrates through the hinge through hole, and the manual driving handle is hinged with the driving shell at the hinge through hole; the other end arm of the manual driving handle is fixedly provided with a ratchet bar.
The locking piece comprises a locking seat, a locking rod and a magnet block, the locking seat and the magnet block are both arranged on the driving shell, and the locking rod is arranged on the locking seat; the locking seat comprises a locking plate, the locking plate is provided with a plurality of pieces, and the locking plates are mutually parallel and fixedly arranged on the driving shell above the other end of the manual driving handle; the locking device is characterized in that a locking shaft is fixedly arranged on the locking plate, a locking pipe is sleeved on the locking shaft, the length of the locking rod is smaller than that of the arm at the other end of the manual driving handle, the length of the locking rod is larger than the vertical distance from the locking pipe to the manual driving handle, and one end of the locking rod is fixedly arranged on the locking pipe.
Preferably, the rotary pushing member includes a rotary bearing, a rotary rod and a rotary gear, the rotary bearing is disposed on the rotary tube, the rotary rod is disposed on the rotary bearing, and the rotary gear is disposed on the rotary rod; the rotary bearings are insulated bearings, the outer diameter of each rotary bearing is not larger than the inner diameter of each rotary pipe, a plurality of rotary bearings are arranged, and the rotary bearings are uniformly distributed and embedded in the rotary pipes; the rotating rods are cylindrical, the diameter of each rotating rod is the same as the inner diameter of the rotating bearing, the length of each rotating rod is larger than that of each rotating pipe, three rotating rods are arranged, the rotating rods are arranged in the rotating pipes one by one correspondingly, and one end of each rotating rod is embedded in the rotating bearing; the rotary gears are insulated gears, the number of the rotary gears is three, the rotary gears are sleeved on the other end of the rotary rod one by one correspondingly, and the rotary gears are meshed with the insulated racks.
The movable conducting rods are rod-shaped, are made of copper and are arranged in three numbers, are correspondingly arranged at the other end point of the rotating rod one by one, and the connection part of the movable conducting rods and the rotating rod is the center of the movable conducting rods, and is vertical to the rotating rod; the movable conducting rod is provided with a temperature sensor which is electrically connected with the automatic driving switch; the movable conductive contact is blocky, the movable conductive contact is a copper contact, the movable conductive contact is provided with six contacts, the movable conductive contacts are correspondingly arranged on the end points of the movable conductive rod one by one, the contact surface on the movable conductive contact is a plane, and meanwhile, the contact surface on the movable conductive contact is parallel to the tangent line of the rotating gear.
Preferably, the static conductive members include a first fracture static conductive member and a second fracture static conductive member, and the first fracture static conductive member and the second fracture static conductive member are both arranged on the arc extinguishing shell; the first fracture static conductive piece comprises a first static conductive rod and a first static conductive contact, the first static conductive rod is arranged on the arc extinguishing shell, and the first static conductive contact is arranged on the first static conductive rod; three first static conductive rods are arranged, and the first static conductive rods are correspondingly embedded into the upper end through holes one by one; first quiet conductive contact is the copper contact, first quiet conductive contact is cubic, the contact surface on the first quiet conductive contact is the plane, the contact surface on the first quiet conductive contact with the rotating gear tangent line is parallel, first quiet conductive contact is provided with threely, first quiet conductive contact corresponds fixed the setting one by one on first quiet conductive rod one end, and first quiet conductive contact is located in the arc extinguishing shell, simultaneously first quiet conductive contact to arc extinguishing shell slot bottom interval with move conductive rod one end move conductive contact to arc extinguishing shell slot bottom interval the same, make move conductive contact center around move conductive rod central point during the motion can with first quiet conductive contact is closed, and then accomplish fast action's guarantee type cubical switchboard closes a floodgate.
The second fracture static conductive piece comprises three second static conductive rods and three second static conductive contacts, the second static conductive rods are arranged on the arc extinguishing shell, and the second static conductive contacts are arranged on the second static conductive rods which are correspondingly embedded in the lower end through holes one by one; the second static conductive contact is a copper contact, the second static conductive contact is in a block shape, a contact surface on the second static conductive contact is a plane, and the contact surface on the second static conductive contact is parallel to the tangent line of the rotating gear; the number of the second static conductive contacts is three, the second static conductive contacts are fixedly arranged at one end of the second static conductive rod one by one, the second static conductive contacts are located in the arc extinguishing shell, and meanwhile, the distance from the second static conductive contacts to the bottom of the arc extinguishing shell is the same as that from the second static conductive contacts to the bottom of the arc extinguishing shell, and the distance from the second static conductive contacts to the bottom of the arc extinguishing shell is the same as that from the movable conductive contacts at the other end of the movable conductive rod to the bottom of the arc extinguishing shell, so that the movable conductive contacts at the other end of the movable conductive rod can be closed with the second static conductive contacts when moving around the central point of the movable conductive rod, and then the fast-acting guaranteed switch cabinet is switched on.
The invention at least comprises the following beneficial effects:
1) the fast-acting guaranteed switch cabinet has the advantages of reasonable structural design, compact structure, high switching-off speed, excellent arc extinguishing effect and high safety and reliability;
2) the fast-acting guaranteed switch cabinet is provided with a driving part, the driving part comprises a driving sliding part, a driving automatic part and a driving manual part, the driving sliding part comprises a pull rod, the driving automatic part comprises a magnetic coil, a driving power supply and a driving switch, when the driving switch controls the driving power supply to electrify the magnetic coil, the magnetic coil can generate electromagnetism to rapidly pull the pull rod to the rear side, and further driving force for rapidly opening a brake is provided for a conductive part;
3) the protection type switch cabinet with rapid action is provided with the conductive part, the conductive part comprises a movable conductive part and a static conductive part, the movable conductive part comprises a rotary pushing part, a movable conductive rod and a movable conductive contact, the rotary pushing part comprises a rotary bearing, a rotary rod and a rotary gear, and the radius of the rotary gear is smaller than half of the length of the movable conductive rod, so that when the rotary gear rotates forwards by a small angle, a large stroke can be generated at the end point of the movable conductive rod, namely, the movable conductive part and the static conductive part can be rapidly separated, and the separating speed and the arc extinguishing effect of the protection type switch cabinet with rapid action are improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a fast-acting security switch cabinet according to the present invention;
FIG. 2 is a schematic view of the fast-acting guaranteed switchgear with the cabinet door removed;
FIG. 3 is a schematic view of a first longitudinal section of a fast-acting guaranteed switchgear enclosure according to the present invention;
FIG. 4 is a partial enlarged view of A in FIG. 3 of the fast-acting safety switch cabinet of the present invention;
FIG. 5 is a front view of a first longitudinal section of a fast acting guaranteed switchgear of the present invention;
FIG. 6 is a front view of a second longitudinal section of a fast acting guaranteed switchgear of the present invention;
FIG. 7 is a partial enlarged view of B in FIG. 6 of the fast-acting safety switch cabinet of the present invention;
fig. 8 is a partially enlarged view of C in fig. 7 of the safety type switchgear for quick operation according to the present invention.
Wherein: 1-cabinet shell, 2-cabinet door, 3-fixed seat, 4-driving shell, 5-arc extinguishing base, 6-arc extinguishing cover, 7-sliding tube, 9-rotating tube, 10-transparent plate, 11-screw, 14-buffer force application plate, 15-buffer force application spring, 16-metal pull rod, 17-insulating rack, 18-magnetic coil, 19-driving power supply, 20-automatic driving switch, 21-manual driving switch, 22-manual driving handle, 23-ratchet rack, 24-locking rod, 25-magnet block, 26-locking plate, 27-movable conductive rod, 28-movable conductive contact, 31-rotating gear, 32-first stationary conductive rod, 33-first stationary conductive contact, 34-supporting leg, 35-wire, 36-second static conductive rod, 37-second static conductive contact.
Detailed Description
Technical solutions of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
As shown in fig. 1 to 8, a safety switch cabinet with fast operation includes a cabinet body, a circuit breaking protective shell, a driving portion, and a conductive portion, wherein the circuit breaking protective shell is disposed on the cabinet body, and the driving portion and the conductive portion are both disposed on the circuit breaking protective shell. The cabinet body is including cabinet shell 1 and cabinet door 2, cabinet door 2 sets up on the cabinet shell 1, cabinet shell 1 is the rectangle trough-shaped, all be provided with the terminal surface baffle on the 1 both ends face of cabinet shell, 1 one end of cabinet shell the terminal surface baffle outside four corners department all is provided with landing leg 34, landing leg 34 with the terminal surface baffle is perpendicular. The utility model discloses a cabinet shell, including 1 tank bottom medial surface of cabinet shell, fixing base 3 is provided with fixing base 3 on the level, fixing base 3 is the forked tail cubic, 3 length of fixing base are less than 1 width of cabinet shell, fixing base 3 is used for fixing the protective housing opens circuit. The cabinet door 2 is a side hung door, the cabinet door 2 is hinged to a notch of the cabinet shell 1, a cabinet door lock is arranged on the cabinet door 2, a handle is arranged on the cabinet door lock, and the handle is used for opening and closing the cabinet door lock.
The protection shell that opens circuit includes arc extinguishing shell and drive shell 4, drive shell 4 sets up on the arc extinguishing shell. The arc extinguishing shell includes arc extinguishing base 5 and arc extinguishing lid 6, arc extinguishing base 5 is the rectangle slot form, 5 both ends faces of arc extinguishing base all are provided with the end face shrouding, the end face shrouding can with 5 both ends faces of arc extinguishing base seal completely, 5 sizes of arc extinguishing base are less than 1 size of cabinet shell. The arc extinguishing base 5 one end be provided with the upper end through hole on the end face shrouding, the upper end through hole is provided with threely, the upper end through hole is followed 5 horizontal evenly distributed of arc extinguishing base, the 5 other end of arc extinguishing base be provided with the lower extreme through hole on the end face shrouding, the lower extreme through hole is provided with threely, the lower extreme through hole is followed 5 horizontal evenly distributed of arc extinguishing base. The center of one side wall of the arc extinguishing base 5 is provided with a sliding through hole, a sliding pipe 7 is embedded in the sliding through hole, and the sliding pipe 7 is arranged on the driving part. Be provided with fixed screw on the 5 notches of arc extinguishing base, fixed screw sets up quantity and is no less than four, fixed screw evenly distributed is in on the 5 notches of arc extinguishing base, fixed screw is used for putting through screw 11 with arc extinguishing lid 6 knot and fixes on the arc extinguishing base 5.
5 tank bottom lateral surface of arc extinguishing base is improved level and is provided with the fixed slot, the fixed slot is the forked tail trough-shaped, the fixed slot with fixing base 3 cooperation, the fixed slot is detained and is put on fixing base 3. The inner side surface of the bottom of the arc extinguishing base 5 is horizontally and fixedly provided with a rotating pipe 9, the rotating pipe 9 is perpendicular to the bottom of the arc extinguishing base 5, the rotating pipes 9 are three, and the rotating pipes 9 are uniformly distributed on the longitudinal central line of the bottom of the arc extinguishing base 5. The rotary pipe 9 is used for arranging the conductive part.
The driving part comprises a driving sliding part, a driving automatic part and a driving manual part, the driving sliding part is arranged on the arc extinguishing base 5, and the driving automatic part and the driving manual part are both arranged on the driving sliding part. The driving sliding part comprises a pull rod, a buffering force application plate 14 and a buffering force application spring 15, the pull rod is arranged on the arc extinguishing base 5, and the buffering force application plate 14 and the buffering force application spring 15 are arranged on the pull rod. The pull rod comprises a metal pull rod 16 and an insulating rack 17, the metal pull rod 16 is arranged on the arc extinguishing base 5, and the insulating rack 17 is arranged on the metal pull rod 16. The metal pull rod 16 is cylindrical, the length of the metal pull rod 16 is larger than that of the sliding tube 7, the metal pull rod 16 is embedded in the sliding tube 7, and the metal pull rod 16 and the sliding tube 7 are in reciprocating sliding sealing connection. Specifically, piston rings are arranged between the metal pull rod 16 and the sliding pipe 7, and the number of the piston rings is not less than three, so that the metal pull rod 16 and the sliding pipe 7 are in reciprocating sliding sealing connection.
The insulating rack 17 is made of insulating materials, one end of the insulating rack 17 is fixedly connected with one end of the metal pull rod 16, and the axis of the insulating rack 17 is overlapped with the axis of the metal pull rod 16. The buffering force application plate 14 is plate-shaped, a buffering force application through hole is formed in the center of the buffering force application plate 14, and the buffering force application plate 14 is fixedly sleeved on one end of the metal pull rod 16 through the buffering force application through hole. The buffering force application spring 15 is sleeved at one end of the metal pull rod 16, and the buffering force application spring 15 is located between the buffering force application plate 14 and one side wall of the arc extinguishing base 5.
The driving automatic part comprises a magnetic coil 18, a driving power supply 19 and a driving switch, the magnetic coil 18 is arranged on the metal pull rod 16, the driving switch is arranged on the magnetic coil 18, and the driving power supply 19 is electrically connected with the magnetic coil 18. The inner diameter of the magnetic coil 18 is larger than the diameter of the metal pull rod 16, the magnetic coil 18 is sleeved on the other end of the metal pull rod 16, and leads 35 at two ends of the magnetic coil 18 penetrate through the driving shell 4 to be connected with the driving power supply 19. The driving switch comprises an automatic driving switch 20 and a manual driving switch 21, the automatic driving switch 20 is arranged on a lead 35 at one end of the magnetic coil 18, and the manual driving switch 21 is connected on the lead 35 at one end of the magnetic coil 18 in parallel, so that the manual driving switch 21 is connected with the automatic driving switch 20 in parallel. The worker can manually operate the manual driving switch 21 to close and open the brake.
The drive finger comprises a manual drive grip 22 and a locking member, both of which are arranged on the drive housing 4. The manual driving handle 22 is in a boomerang shape, one end of the manual driving handle 22 is hinged with the other end of the metal pull rod 16, the other end of the manual driving handle 22 passes through the hinge through hole, and the manual driving handle 22 is hinged with the driving shell 4 at the hinge through hole. The other end arm of the manual driving handle 22 is fixedly provided with a ratchet bar 23.
The locking piece includes locking seat, locking lever 24 and magnet piece 25, locking seat and magnet piece 25 all set up drive shell 4 is last, locking lever 24 sets up on the locking seat. The locking seat comprises a locking plate 26, the locking plate 26 is provided with two pieces, and the locking plate 26 is parallel to each other and fixedly arranged on the driving shell 4 above the other end of the manual driving handle 22. The locking plate 26 is fixedly provided with a locking shaft, the locking shaft is sleeved with a locking pipe, the length of the locking rod 24 is smaller than that of the arm at the other end of the manual driving handle 22, the length of the locking rod 24 is larger than the vertical distance from the locking pipe to the manual driving handle 22, and one end of the locking rod 24 is fixedly arranged on the locking pipe.
When the rapid-action guarantee type switch cabinet is not required to be manually opened or closed through the driving hand piece, the other end of the locking rod 24 is adsorbed on the magnet block 25, so that the other end of the locking rod 24 is prevented from being embedded into the ratchet strip, and the rapid-action guarantee type switch cabinet is prevented from being automatically opened or closed.
The conductive part comprises a dynamic conductive part and a static conductive part, and the dynamic conductive part and the static conductive part are both arranged on the arc extinguishing base 5. The dynamic conductive piece comprises a rotary pushing piece, a dynamic conductive rod 27 and a dynamic conductive contact 28, the rotary pushing piece is arranged on the arc extinguishing shell, the dynamic conductive rod 27 is arranged on the rotary pushing piece, and the dynamic conductive contact 28 is arranged on the dynamic conductive rod 27.
The rotary pushing member comprises a rotary bearing, a rotary rod and a rotary gear 31, the rotary bearing is arranged on the rotary pipe 9, the rotary rod is arranged on the rotary bearing, and the rotary gear 31 is arranged on the rotary rod. The swivel bearing is an insulating bearing, the outer diameter of the swivel bearing is not larger than the inner diameter of the swivel pipe 9, the width of the swivel bearing is smaller than the length of the swivel pipe 9, the number of the swivel bearings is six, every two swivel bearings are embedded in one swivel pipe 9, and the swivel bearings are uniformly distributed and embedded in the swivel pipe 9. The rotary rod is cylindric, the rotary rod diameter with the swivel bearing internal diameter is the same, rotary rod length is greater than swivel pipe 9 length, the rotary rod is provided with threely, the rotary rod corresponds the setting one by one in swivel pipe 9, and rotary rod one end inlays the dress and is in the swivel bearing. The rotating gears 31 are insulated gears, the number of the rotating gears 31 is three, the rotating gears 31 are sleeved on the other ends of the rotating rods one by one correspondingly, and the rotating gears 31 are meshed with the insulated racks 17.
Move conducting rod 27 and be shaft-like, move conducting rod 27 and be copper conducting rod, it is provided with three to move conducting rod 27, it corresponds the setting one by one to move conducting rod 27 on the other extreme point of rotary rod, and move conducting rod 27 with the rotary rod junction does move conducting rod 27 central point, simultaneously move conducting rod 27 with the rotary rod is perpendicular. The movable conducting rod 27 is provided with a temperature sensor, and the temperature sensor is electrically connected with the automatic driving switch 20. The movable conductive contact 28 is blocky, the movable conductive contact 28 is a copper contact, the movable conductive contact 28 is provided with six, the movable conductive contacts 28 are correspondingly arranged on the end points of the movable conductive rod 27 one by one, the contact surface on the movable conductive contact 28 is a plane, and meanwhile, the contact surface on the movable conductive contact 28 is parallel to the tangent line of the rotating gear 31.
The static conductive parts comprise a first fracture static conductive part and a second fracture static conductive part, and the first fracture static conductive part and the second fracture static conductive part are both arranged on the arc extinguishing shell. The first fracture static conductive piece comprises a first static conductive rod 32 and three first static conductive contacts 33, the first static conductive rod 32 is arranged on the arc extinguishing shell, the first static conductive contacts 33 are arranged on the first static conductive rod 32, and the first static conductive rods 32 are correspondingly embedded in the upper end through holes one by one. The first static conductive contact 33 is a copper contact, the first static conductive contact 33 is in a block shape, the contact surface on the first static conductive contact 33 is a plane, the contact surface on the first static conductive contact 33 is parallel to the tangent of the rotating gear 31, three first static conductive contacts 33 are arranged, the first static conductive contacts 33 are fixedly arranged on one end of the first static conductive rod 32 one by one correspondingly, and the first static conductive contact 33 is located in the arc extinguishing shell, and the distance from the first static conductive contact 33 to the arc extinguishing shell slot bottom is the same as the distance from the movable conductive contact 28 at one end of the movable conductive rod 27 to the arc extinguishing shell slot bottom, when the movable conductive contact 28 moves around the central point of the movable conductive rod 27, the movable conductive contact can be closed with the first static conductive contact 33, and then the fast-acting guaranteed switch cabinet is switched on.
The second fracture static conductive piece comprises second static conductive rods 36 and second static conductive contacts 37, the second static conductive rods 36 are arranged on the arc extinguishing shell, the second static conductive contacts 37 are arranged on the second static conductive rods 36, the number of the second static conductive rods 36 is three, and the second static conductive rods 36 are correspondingly embedded in the lower end through holes one by one. The second static conductive contact 37 is a copper contact, the second static conductive contact 37 is in a block shape, the contact surface on the second static conductive contact 37 is a plane, the contact surface on the second static conductive contact 37 is parallel to the contact surface on the movable conductive contact 28, three second static conductive contacts 37 are arranged, the second static conductive contacts 37 are fixedly arranged on one end of the second static conductive rod 36 one by one correspondingly, and the second static conductive contact 37 is positioned in the arc extinguishing shell, and the distance from the second static conductive contact 37 to the arc extinguishing shell slot bottom is the same as the distance from the movable conductive contact 28 at the other end of the movable conductive rod 27 to the arc extinguishing shell slot bottom, when the movable conductive contact 28 at the other end of the movable conductive rod 27 moves around the central point of the movable conductive rod 27, the movable conductive contact can be closed with the second static conductive contact 37, and then the fast-acting guaranteed switch cabinet is switched on.
When a short circuit and an overload fault occur in a circuit, the temperature of the movable conducting rod 27 will rise, when the temperature sensor monitors that the temperature exceeds a set temperature, the automatic driving switch 20 will be controlled to be closed, the magnetic coil 18 will generate magnetic force to pull the pull rod to the rear side, the pull rod will drive the rotating gear 31 to rotate in the forward direction through the insulating rack 17, the rotating gear 31 will make the movable conducting contact 28 rotate around the center of the movable conducting rod 27 through the rotating rod and the movable conducting rod 27, and then the movable conducting contact 28 is disconnected from the first static conducting contact 33 and the second static conducting contact 37, so as to realize the automatic opening of the high-voltage multi-break synchronous circuit breaker;
when the fast-acting safeguard type switch cabinet fails and cannot be automatically opened, a worker can manually close the manual driving switch 21 to electrify the magnetic coil 18 to open the fast-acting safeguard type switch cabinet;
when the automatic drive switch 20 and the manual drive switch 21 are switched off, the buffer force application spring 15 pushes the pull rod to move to the front side through the buffer force application plate 14, the pull rod pushes the rotating gear 31 to rotate reversely through the insulating rack 17, the rotating gear 31 makes the movable conductive contact 28 rotate reversely around the center of the movable conductive rod 27 through the rotating rod and the movable conductive rod 27, and further makes the movable conductive contact 28 and the first and second static conductive contacts 33 and 37 closed, so as to realize the automatic switching-on of the high-voltage multi-fracture synchronous circuit breaker;
when the fast-acting safeguard type switch cabinet fails to automatically open and the magnetic coil 18 cannot be electrified, a worker can push the other end of the manual driving handle 22 to move the pull rod to the rear side, so that the fast-acting safeguard type switch cabinet is opened, and meanwhile, the other end of the locking rod 24 is embedded into the ratchet bar 23 to prevent the fast-acting safeguard type switch cabinet from being accidentally closed during maintenance and causing electric shock injuries and deaths of maintenance personnel.
The invention has the following beneficial technical effects:
the fast-acting guaranteed switch cabinet has the advantages of reasonable structural design, compact structure, high switching-off speed, excellent arc extinguishing effect and high safety and reliability. The fast-acting guaranteed switch cabinet is provided with a driving part, the driving part comprises a driving sliding part, a driving automatic part and a driving manual part, the driving sliding part comprises a pull rod, the driving automatic part comprises a magnetic coil 18, a driving power supply 19 and a driving switch, and when the driving switch controls the driving power supply 19 to electrify the magnetic coil 18, the magnetic coil 18 can generate electromagnetism to rapidly pull the pull rod to the rear side so as to provide driving force for rapidly opening a conductive part.
The ensuring type switch cabinet with rapid action is provided with a conductive part, the conductive part comprises a movable conductive part and a static conductive part, the movable conductive part comprises a rotary pushing part, a movable conductive rod 27 and a movable conductive contact 28, the rotary pushing part comprises a rotary bearing, a rotary rod and a rotary gear 31, and the radius of the rotary gear 31 is smaller than half of the length of the movable conductive rod 27, so that when the rotary gear 31 rotates forwards for a small angle, a large stroke can be generated at the end point of the movable conductive rod 27, namely, the movable conductive part and the static conductive part can be rapidly separated, and the separating speed and the arc extinguishing effect of the ensuring type switch cabinet with rapid action are improved.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A fast-acting safety switch cabinet, comprising:
the cabinet comprises a cabinet body and a control device, wherein the cabinet body comprises a cabinet shell (1) and a cabinet door (2), and the cabinet door (2) is arranged on the cabinet shell (1);
the circuit breaking protective shell is arranged on the cabinet shell (1), the circuit breaking protective shell comprises an arc extinguishing shell and a driving shell (4), and the driving shell (4) is arranged on the arc extinguishing shell; the arc extinguishing shell comprises an arc extinguishing base (5) and an arc extinguishing cover (6), and the arc extinguishing cover (6) is arranged on the arc extinguishing base (5);
the driving part is arranged on the circuit breaking protective shell and comprises a driving sliding part, a driving automatic part and a driving manual part, the driving sliding part is arranged on the arc extinguishing base (5), and the driving automatic part and the driving manual part are both arranged on the driving sliding part;
the conductive part is arranged on the arc extinguishing shell and comprises a dynamic conductive part and a static conductive part, and the dynamic conductive part and the static conductive part are both arranged on the arc extinguishing base (5); the dynamic conductive piece comprises a rotary pushing piece, a dynamic conductive rod (27) and a dynamic conductive contact (28), the rotary pushing piece is arranged on the arc extinguishing base (5), the dynamic conductive rod (27) is arranged on the rotary pushing piece, and the dynamic conductive contact (28) is arranged on the dynamic conductive rod (27); the driving automatic part enables the driving sliding part to reciprocate along a straight line, the driving sliding part enables the rotary pushing part to reciprocate and rotate along the circumferential direction, and the rotary pushing part drives the movable conductive contact (28) to be closed or disconnected with the static conductive part through the movable conductive rod (27), so that the quick-acting guarantee type switch cabinet is closed or disconnected.
2. The fast-acting guaranteed switchgear as claimed in claim 1, wherein the cabinet shell (1) is in a rectangular groove shape, end face partition plates are arranged on two end faces of the cabinet shell (1), and supporting legs (34) are arranged at four corners of the outer side of the end face partition plate at one end of the cabinet shell (1); a fixed seat (3) is horizontally arranged on the inner side surface of the bottom of the cabinet shell (1), the fixed seat (3) is in a dovetail block shape, and the length of the fixed seat (3) is smaller than the width of the cabinet shell (1); the cabinet door (2) is a side hung door, and the cabinet door (2) is hinged on a notch of the cabinet shell (1).
3. The fast-acting guaranteed switchgear cabinet according to claim 1 or 2, wherein the arc extinguishing base (5) is in a rectangular groove shape, end face sealing plates are arranged on two end faces of the arc extinguishing base (5), the end face sealing plates can completely seal the two end faces of the arc extinguishing base (5), and the size of the arc extinguishing base (5) is smaller than that of the cabinet shell (1); the end face sealing plate at one end of the arc extinguishing base (5) is provided with three upper through holes, the three upper through holes are transversely and uniformly distributed along the arc extinguishing base (5), the end face sealing plate at the other end of the arc extinguishing base (5) is provided with three lower through holes, and the three lower through holes are transversely and uniformly distributed along the arc extinguishing base (5); a sliding through hole is formed in one side wall of the arc extinguishing base (5), and a sliding pipe (7) is embedded in the sliding through hole; the arc extinguishing base is characterized in that fixing screw holes are formed in the notch of the arc extinguishing base (5), a plurality of fixing screw holes are formed in the fixing screw holes, and the fixing screw holes are uniformly distributed in the notch of the arc extinguishing base (5).
4. The fast-acting guaranteed switchgear as claimed in claim 3, wherein a fixing groove is formed in the outer side face of the bottom of the arc extinguishing base (5), the fixing groove is in a dovetail groove shape, the fixing groove is matched with the fixing seat (3), and the fixing groove is buckled on the fixing seat (3); the inner side surface of the bottom of the arc extinguishing base (5) is fixedly provided with three rotating tubes (9), the rotating tubes (9) are perpendicular to the bottom of the arc extinguishing base (5), and the number of the rotating tubes (9) is three;
the arc extinguishing cover (6) is in a rectangular plate shape, an observation through hole is formed in the arc extinguishing cover (6), and a transparent plate (10) is embedded in the observation through hole; the arc extinguishing cover (6) is characterized in that a plurality of fixing through holes are uniformly distributed on the side edge of the arc extinguishing cover (6), the positions of the fixing through holes correspond to the positions of the fixing screw holes, screws (11) are embedded in the fixing through holes, the screws (11) are matched with the fixing screw holes, and the arc extinguishing cover (6) is fixedly arranged on the notch of the arc extinguishing base (5) through the screws (11); the driving shell (4) is box-shaped, a box opening of the driving shell (4) is fixedly arranged on one side wall of the arc extinguishing base (5), the sliding tube (7) is located in the box opening of the driving shell (4), and a hinged through hole is formed in the side face of the driving shell (4).
5. The fast-acting guaranteed switchgear according to claim 4, wherein the driving slider comprises a pull rod, a buffering force application plate (14) and a buffering force application spring (15), the pull rod is arranged on the arc extinguishing base (5), and the buffering force application plate (14) and the buffering force application spring (15) are both arranged on the pull rod; the pull rod comprises a metal pull rod (16) and an insulating rack (17), the metal pull rod (16) is arranged on the arc extinguishing base (5), and the insulating rack (17) is arranged on the metal pull rod (16); the metal pull rod (16) is cylindrical, the length of the metal pull rod (16) is larger than that of the sliding pipe (7), the metal pull rod (16) is embedded in the sliding pipe (7), and the metal pull rod (16) is in reciprocating sliding sealing connection with the sliding pipe (7).
6. The fast-acting guaranteed switchgear according to claim 5, wherein the insulating rack (17) is made of an insulating material, one end of the insulating rack (17) is fixedly connected with one end of the metal pull rod (16), and the axis of the insulating rack (17) is coincident with the axis of the metal pull rod (16); the buffering force application plate (14) is plate-shaped, a buffering force application through hole is formed in the center of the buffering force application plate (14), and the buffering force application plate (14) is fixedly sleeved on one end of the metal pull rod (16) through the buffering force application through hole; the buffering force application spring (15) is sleeved at one end of the metal pull rod (16), and the buffering force application spring (15) is located between the buffering force application plate (14) and one side wall of the arc extinguishing base (5).
7. The fast-acting guaranteed switchgear according to claim 5, wherein said drive robot comprises a magnetic coil (18), a drive power source (19) and a drive switch, said magnetic coil (18) being arranged on said metal tie bar (16), said drive switch being arranged on said magnetic coil (18), said drive power source (19) being electrically connected to said magnetic coil (18); the inner diameter of the magnetic coil (18) is larger than the diameter of the metal pull rod (16), the magnetic coil (18) is sleeved at the other end of the metal pull rod (16), and leads (35) at two ends of the magnetic coil (18) penetrate through the driving shell (4) to be connected with the driving power supply (19); the driving switch comprises an automatic driving switch (20) and a manual driving switch (21), the automatic driving switch (20) is arranged on a lead (35) at one end of the magnetic coil (18), and the manual driving switch (21) is connected on the lead (35) at one end of the magnetic coil (18) in parallel, so that the manual driving switch (21) is connected with the automatic driving switch (20) in parallel.
8. Fast-acting safety switch cabinet according to claim 5, characterized in that said driving manual comprises a manual driving handle (22) and a locking member, both said manual driving handle (22) and said locking member being provided on said driving shell (4); the manual driving handle (22) is in a boomerang shape, one end of the manual driving handle (22) is hinged with the other end of the metal pull rod (16), the other end of the manual driving handle (22) penetrates through the hinge through hole, and the manual driving handle (22) is hinged with the driving shell (4) at the hinge through hole; a ratchet bar (23) is fixedly arranged on the other end arm of the manual driving handle (22);
the locking piece comprises a locking seat, a locking rod (24) and a magnet block (25), wherein the locking seat and the magnet block (25) are arranged on the driving shell (4), and the locking rod (24) is arranged on the locking seat; the locking seat comprises a locking plate (26), the locking plate (26) is provided with a plurality of pieces, and the locking plates (26) are mutually parallel and fixedly arranged on the driving shell (4) above the other end of the manual driving handle (22); the locking plate (26) is fixedly provided with a locking shaft, the locking shaft is sleeved with a locking pipe, the length of the locking rod (24) is smaller than that of the arm at the other end of the manual driving handle (22), the length of the locking rod (24) is larger than the vertical distance between the locking pipe and the manual driving handle (22), and one end of the locking rod (24) is fixedly arranged on the locking pipe.
9. The fast-acting guaranteed switchgear, according to claim 7, characterized in that said rotary pusher comprises a rotary bearing, a rotary rod and a rotary gear (31), said rotary bearing being arranged on said rotary tube (9), said rotary rod being arranged on said rotary bearing, said rotary gear (31) being arranged on said rotary rod; the rotary bearings are insulated bearings, the outer diameter of each rotary bearing is not larger than the inner diameter of the rotary pipe (9), a plurality of rotary bearings are arranged, and the rotary bearings are uniformly distributed and embedded in the rotary pipes (9); the rotating rods are cylindrical, the diameter of each rotating rod is the same as the inner diameter of the rotating bearing, the length of each rotating rod is larger than that of the rotating pipe (9), three rotating rods are arranged, the rotating rods are arranged in the rotating pipe (9) one by one correspondingly, and one end of each rotating rod is embedded in the rotating bearing; the rotary gears (31) are insulated gears, three rotary gears (31) are arranged, the rotary gears (31) are sleeved on the other ends of the rotary rods one by one correspondingly, and the rotary gears (31) are meshed with the insulated racks (17);
the movable conducting rods (27) are rod-shaped, the movable conducting rods (27) are copper conducting rods, the number of the movable conducting rods (27) is three, the movable conducting rods (27) are correspondingly arranged at the other end point of the rotating rod one by one, the connection position of the movable conducting rods (27) and the rotating rod is the center of the movable conducting rods (27), and meanwhile, the movable conducting rods (27) are perpendicular to the rotating rod; the movable conducting rod (27) is provided with a temperature sensor which is electrically connected with the automatic driving switch (20); move conductive contact (28) and be the cubic, move conductive contact (28) and be the copper contact, it is provided with six to move conductive contact (28), it corresponds the setting one by one to move conductive contact (28) moves on conducting rod (27) endpoint, and it is the plane to move the contact surface on conductive contact (28), simultaneously move the contact surface on conductive contact (28) with rotatory gear (31) tangent line is parallel.
10. The fast-acting guaranteed switchgear as claimed in claim 9, wherein said static conductive members comprise a first fracture static conductive member and a second fracture static conductive member, and said first fracture static conductive member and said second fracture static conductive member are both disposed on said arc extinguishing shell; the first fracture static conductive piece comprises a first static conductive rod (32) and a first static conductive contact (33), the first static conductive rod (32) is arranged on the arc extinguishing shell, and the first static conductive contact (33) is arranged on the first static conductive rod (32); three first static conductive rods (32) are arranged, and the first static conductive rods (32) are correspondingly embedded in the through holes at the upper ends one by one; the first static conductive contact (33) is a copper contact, the first static conductive contact (33) is in a block shape, a contact surface on the first static conductive contact (33) is a plane, the contact surface on the first static conductive contact (33) is parallel to a tangent line of the rotating gear (31), the number of the first static conductive contacts (33) is three, the first static conductive contacts (33) are fixedly arranged on one end of the first static conductive rod (32) one by one, the first static conductive contacts (33) are located in the arc extinguishing shell, the distance from the first static conductive contact (33) to the bottom of the arc extinguishing shell is the same as the distance from the movable conductive contact (28) to the bottom of the arc extinguishing shell at one end of the movable conductive rod (27), and the movable conductive contact (28) can be closed with the first static conductive contact (33) when moving around the central point of the movable conductive rod (27), further completing the switching-on of the fast-acting guaranteed switch cabinet;
the second fracture static conductive piece comprises second static conductive rods (36) and second static conductive contacts (37), the second static conductive rods (36) are arranged on the arc extinguishing shell, the second static conductive contacts (37) are arranged on the second static conductive rods (36), the number of the second static conductive rods (36) is three, and the second static conductive rods (36) are correspondingly embedded in the lower end through holes one by one; the second static conductive contact (37) is a copper contact, the second static conductive contact (37) is in a block shape, a contact surface on the second static conductive contact (37) is a plane, and the contact surface on the second static conductive contact (37) is parallel to the tangent line of the rotating gear (31); the second static conductive contact (37) is provided with three, the second static conductive contact (37) corresponds fixed setting one by one on second static conductive rod (36) one end, and second static conductive contact (37) are located in the arc extinguishing shell, simultaneously second static conductive contact (37) to arc extinguishing shell groove bottom interval with move the conductive rod (27) other end move conductive contact (28) to arc extinguishing shell groove bottom interval the same, make move the conductive rod (27) other end move conductive contact (28) around when moving conductive rod (27) central point and can with second static conductive contact (37) are closed, and then accomplish fast-acting guarantee type cubical switchboard is closed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010414398.9A CN111555133B (en) | 2020-05-15 | 2020-05-15 | Guarantee type cubical switchboard of quick action |
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| CN202010414398.9A CN111555133B (en) | 2020-05-15 | 2020-05-15 | Guarantee type cubical switchboard of quick action |
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| CN111555133B true CN111555133B (en) | 2021-10-08 |
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| CN112153848B (en) * | 2020-08-31 | 2021-12-17 | 南京坤前计算机科技有限公司 | Tray structure with folding and shock-absorbing functions and server cabinet |
| CN115172079B (en) * | 2022-09-08 | 2022-11-18 | 江西科键汽车电器股份有限公司 | Multi-key position change-over switch |
| CN115967025B (en) * | 2022-12-23 | 2023-12-26 | 东台市飞凌电气设备有限公司 | Electric operating mechanism |
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Denomination of invention: A kind of fast acting safeguard switch cabinet Effective date of registration: 20221221 Granted publication date: 20211008 Pledgee: Zhenjiang Branch of Zheshang Bank Co.,Ltd. Pledgor: DAHANG YOUNENG ELECTRICAL CO.,LTD. Registration number: Y2022980028505 |
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