CN116682691A - Switch cabinet interlocking mechanism and switch cabinet - Google Patents
Switch cabinet interlocking mechanism and switch cabinet Download PDFInfo
- Publication number
- CN116682691A CN116682691A CN202310869339.4A CN202310869339A CN116682691A CN 116682691 A CN116682691 A CN 116682691A CN 202310869339 A CN202310869339 A CN 202310869339A CN 116682691 A CN116682691 A CN 116682691A
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- transmission connecting
- plate
- interlocking
- bus
- connecting rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims abstract description 63
- 230000001360 synchronised effect Effects 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 230000002265 prevention Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005404 monopole Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating 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
- 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
- H02B1/16—Earthing arrangements
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The application discloses a switch cabinet interlocking mechanism and a switch cabinet, belonging to the technical field of high-voltage electrical equipment, and comprising a bus room pressure release cover interlocking, an upper single-stage grounding switch interlocking, a synchronous IP protection device, an upper transmission connecting rod, a lower transmission connecting rod and a middle grounding knife operating mechanism; the bus chamber pressure release cover is connected with the top end of the upper single-stage grounding switch interlock, the tail end of the upper single-stage grounding switch interlock is connected with the top parts of the upper and lower transmission connecting rods through a first main shaft, and the bottom parts of the upper and lower transmission connecting rods are connected with the middle-arranged grounding knife operating mechanism through a second main shaft; the upper and lower transmission connecting rods are provided with synchronous IP protection devices; the upper single-stage grounding switch interlock comprises a fan-shaped lock plate; the device comprises a supporting seat, a limiting device, an upper transmission connecting rod and an upper crank; the fan-shaped locking plate is arranged on the supporting seat, the tail end of the supporting seat is connected with the upper region of the upper transmission connecting rod, and the lower region of the upper transmission connecting rod is connected with the upper crank. The application can solve the problem that the bus room in the prior art has no effective interlocking mode when the grounding knife is arranged.
Description
Technical Field
The application relates to the technical field of high-voltage electric equipment, in particular to a switch cabinet interlocking mechanism and a switch cabinet.
Background
In order to prevent misoperation of electrical equipment such as an isolating switch and a grounding disconnecting link, the operation of the electrical equipment in a transformer substation has an misoperation preventing function, and the method generally has the implementation modes of mechanical locking of the electrical equipment, five prevention of a station control layer, misoperation prevention of a spacer layer measurement and control device, on-site wiring type electrical locking of a spacer layer, electromagnetic lock and the like. In general, electromagnetic locks are only active when the device is operating in situ, and other locking modes are active when the device is operating remotely and electrically in situ. Mechanical locking generally effects locking of the operating mechanism of the respective electrical device by means of a mechanical linkage of the electrical device. The five-prevention of the station control layer, the mistake prevention of the spacer layer measurement and control device and the on-site wiring type electric locking of the spacer layer are all based on judgment of the opening and closing states of the electric equipment such as a breaker, a disconnecting switch and a grounding disconnecting switch, corresponding interlocking conditions are formed, and after the interlocking conditions are met, a remote control instruction is sent or a control loop of the corresponding equipment is connected, so that an interlocking control function is realized.
Existing switchgear grounding switch operating mechanisms are typically interlocked with the rear lower door, and there is no effective way of interlocking when the bus bar compartment is populated with grounding blades. The five-prevention interlocking function cannot be met, and safety accidents are easy to occur when workers work.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a switch cabinet interlocking mechanism and a switch cabinet, which are used for solving the problem that an effective interlocking mode is not available when a grounding knife is arranged in a bus room.
In order to achieve the above object, the present application provides the following technical solutions.
A switch cabinet interlocking mechanism comprises a bus room pressure release cover interlocking mechanism, an upper single-stage grounding switch interlocking mechanism, a synchronous IP protection device, an upper transmission connecting rod, a lower transmission connecting rod and a middle grounding knife operating mechanism;
the bus chamber pressure release cover is connected with the top end of the upper single-stage grounding switch interlock, the tail end of the upper single-stage grounding switch interlock is connected with the top parts of the upper and lower transmission connecting rods through a first main shaft, and the bottom parts of the upper and lower transmission connecting rods are connected with the middle-arranged grounding knife operating mechanism through a second main shaft;
the upper and lower transmission connecting rods are provided with synchronous IP protection devices;
the upper single-stage grounding switch interlock comprises a fan-shaped lock plate, a supporting seat, a limiting device, an upper transmission connecting rod and an upper crank;
the fan-shaped locking plate is arranged on the supporting seat, the tail end of the supporting seat is connected with the upper region of the upper transmission connecting rod, and the lower region of the upper transmission connecting rod is connected with the upper crank.
As a further improvement of the application, the upper crank is arranged on the first main shaft, and the top of the upper and lower transmission connecting rods drives the upper single-stage grounding switch to move through the first main shaft;
the bottom of the upper and lower transmission connecting rods drives the lower single-stage grounding switch to move through the second main shaft.
As a further improvement of the application, the limiting device comprises a limiting sliding shaft, a limiting shaft, a lining plate, a fixed seat, a first spring and a spring telescopic shaft;
the limiting sliding shaft penetrates through the lining plate and stretches into the fixing seat, and one end, close to the fixing seat, of the limiting sliding shaft is provided with the limiting shaft;
the spring telescopic shaft is arranged inside the fixed shaft, and a first spring is arranged on the spring telescopic shaft.
As a further improvement of the application, the bus room pressure release cover interlock comprises a bus room pressure release cover, a bus room interlock plate and an anti-drop plate;
and the bus chamber interlocking plate is arranged between the bus chamber pressure release cover and the anti-drop plate.
As a further improvement of the application, the bus-bar chamber pressure release cover is arranged at the top end of the bus-bar chamber interlocking plate, and the tail end of the bus-bar chamber interlocking plate is connected with the single-stage grounding switch for interlocking.
As a further improvement of the application, the bottom plane of the bus bar chamber interlocking plate is provided with a hole in which the protruding block of the fan-shaped locking plate is placed. .
As a further improvement of the application, the anti-drop plate is a U-shaped plate.
As a further improvement of the application, the synchronous IP guard includes a stop collar, a second spring, and a spacer;
the lower end of the limiting ring is connected with one end of the second spring, the other end of the second spring is connected with the partition plate, and the partition plate is positioned on the bottom plate of the bus chamber;
the upper and lower transmission connecting rods sequentially pass through the limiting ring, the second spring and the partition plate;
the limiting rings are fixed on the upper and lower transmission connecting rods.
As a further improvement of the application, the baffle plate is provided with a round hole, and the bottom plate of the bus chamber is provided with a yielding hole according to the movement track of the upper and lower transmission connecting rods.
A switch cabinet comprises the switch cabinet interlocking mechanism.
Compared with the prior art, the application has the following beneficial effects:
the application has the advantages of simple operation, high reliability, strong logic and good safety; the system has an emergency unlocking function, and improves timeliness of field processing. The upper single-stage grounding switch and the lower single-stage grounding switch are arranged in a bus chamber and a cable chamber of the switch cabinet, the upper single-stage grounding switch is reversely interlocked with a pressure release cover plate of the bus chamber, the lower single-stage grounding switch is reversely interlocked with a rear lower door, a pressure release cover plate of the bus chamber and the rear lower door can be normally opened at a closing position, and the upper single-stage grounding switch and the rear lower door cannot be opened at a separating position. The upper single-stage grounding switch and the lower single-stage grounding switch cannot be opened when no pressure relief cover is installed or the rear lower door is not closed; when an emergency fault occurs, the pressure release cover of the bus chamber can be opened, and the pressure release cover is provided with emergency unlocking and anti-drop measures to prevent secondary accidents. The upper and lower single-stage grounding switch transmission modes are link transmission, meet the requirements of IP protection grades when traversing different compartments, realize the synchronous closing and closing functions of the double grounding switches, and are economical and safe interlocking mechanisms, and meanwhile, the personal safety of operators can be effectively protected.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present application, and are not particularly limited. In the drawings:
FIG. 1 is a schematic diagram of a switchgear interlock mechanism of the present application;
FIG. 2 is a schematic diagram showing the interlocking mechanism of the switch cabinet; wherein A is a bus chamber; a cable chamber B;
FIG. 3 is a schematic diagram showing the positioning of a switch cabinet interlocking mechanism according to the present application; wherein A is a bus chamber; a cable chamber B;
FIG. 4 is a schematic diagram of an upper single-stage grounding switch interlock mechanism of a switch cabinet connection mechanism of the present application;
FIG. 5 is a schematic view of a limiting device of a switch cabinet connection mechanism according to the present application;
FIG. 6 is a schematic diagram of a bus-bar chamber pressure relief cover interlock for a switchgear connection mechanism of the present application;
FIG. 7 is a schematic diagram of a synchronous IP guard of a switchgear connection mechanism of the present application;
FIG. 8 is an overall schematic diagram of a switchgear cabinet of the present application; wherein a is a schematic diagram of the inside of the switch cabinet, and b is a schematic diagram of the side face of the switch cabinet.
In the figure, 1 is an upper single-stage grounding switch; 101 is a first spindle; 2 is a bus chamber pressure release cover interlock; 3 is the interlocking of the upper single-stage grounding switch; 4 is a synchronous IP protection device; 5 is an upper and lower transmission connecting rod; 6 is a middle-set grounding knife operating mechanism; 7 is a lower single-stage grounding switch; 701 is the second spindle; 8 is a fan-shaped lock plate; 9 is a first connecting shaft; 10 is a second coupling; 11 is a supporting seat; 12 is a limiting device; 13 is an upper transmission connecting rod; 14 is an upper crank; 141 is a first hole; 142 is a second hole; 15 is a limiting sliding shaft; 16 is a limiting shaft; 17 is a lining board; 18 is a fixed seat; 19 is a first spring; 20 is a spring telescopic shaft; 21 is a bus bar chamber relief cover; 22 is a bus bar chamber interlocking plate; 23 is an anti-drop plate; 24 is a bit ring; 25 is a second spring; 26 is a separator.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the interlocking mechanism of the switch cabinet comprises a bus chamber pressure release cover interlocking 2, an upper single-stage grounding switch interlocking 3, a synchronous IP protection device 4, an upper and lower transmission connecting rod 5 and a middle grounding knife operating mechanism 6;
the bus room pressure release cover interlocking 2 is connected with the top end of the upper single-stage grounding switch interlocking 3.
Referring to fig. 2 and 3, the up-down transmission link 5 includes a first portion and a second portion, the first portion is located in the bus bar chamber, the second portion is located in the cable chamber, the tail end of the up-single stage ground switch interlock 3 is connected to an upper region of the first portion of the up-down transmission link 5 through the first main shaft 101, and a bottom region of the second portion of the up-down transmission link 5 is connected to the middle ground blade operating mechanism 6.
The bottom of the first part of the upper and lower transmission links 5 is provided with a synchronous IP guard 4, which is located in the bus-bar compartment.
The upper end of the first part of the up-down rotation connecting rod 5 is connected with the first main shaft 101 of the upper single-pole grounding switch 1, and the lower end of the second part is connected with the second main shaft 102 of the lower single-pole grounding switch 7.
Referring to fig. 4, the upper single stage ground switch interlock 3 includes a fan-shaped lock plate 8; a supporting seat 11, a limiting device 12, an upper transmission connecting rod 13 and an upper crank 14.
The fan-shaped lock plate 8 and the supporting seat 11 are oppositely provided with two shaft holes, the first connecting shaft 9 and the second connecting shaft 10 are respectively arranged in the two shaft holes, so that the fan-shaped lock plate 8 is arranged on the supporting seat 11, the tail end of the supporting seat 11 is connected with the upper region of the upper transmission connecting rod 13, the fan-shaped lock plate 8, the supporting seat 11 and the upper region of the upper transmission connecting rod 13 are fixed together through the second connecting shaft 10, and the first connecting shaft 9 only fixes the fan-shaped lock plate 8 and the front end region of the supporting seat 11; the lower region of the upper transmission link 13 is connected to an upper crank 14.
The lower part of the front section of the fan-shaped locking plate 9 is provided with an extending block.
Referring to fig. 5, the limiting device 12 in the upper single-stage grounding switch interlock 3 comprises a limiting sliding shaft 15, a limiting shaft 16, a lining plate 17, a fixed seat 18, a first spring 19 and a spring telescopic shaft 20;
the limiting sliding shaft 15 penetrates through the lining plate 17 and stretches into the fixed seat 18, the fixed seat 18 is fixed in the bus room, and one end, close to the fixed seat 18, of the limiting sliding shaft 15 is provided with the limiting shaft 16; a recess into which the limit shaft 16 is placed is provided opposite in the upper region of the upper transmission link 13. The spring telescoping shaft 20 is disposed inside the fixed shaft 18), and a first spring 19 is disposed on the spring telescoping shaft 20. The limiting device 12 is used for controlling the upper single-stage grounding switch interlock 3.
Referring to fig. 6, the bus bar chamber relief cover interlock 2 includes a bus bar chamber relief cover 21, a bus bar chamber interlock plate 22, and a drop prevention plate 23;
the bus bar chamber pressure release cover 21 is positioned at the top of the bus bar cabinet, and the bus bar chamber interlocking plate 22 is arranged between the bus bar pressure release cover 21 and the anti-drop plate 23. The tail end of the bus room interlocking plate 22 is connected with a single-stage grounding switch interlocking 3.
The anti-drop plate 23 is a U-shaped plate, the upper region of the bus-bar chamber interlocking plate 22 is provided with a downward groove, the anti-drop plate 23 is placed in the groove, the bottom region of the bus-bar chamber interlocking plate 22 is provided with a flat plate, and the included angle between the flat plate and the side face of the groove is 90 degrees. The bottom plate of the bus bar compartment interlock plate 22 is provided with holes for receiving the protruding blocks of the fan-shaped lock plate 8.
The upper crank 14 is provided with a first hole 141 and a second hole 142, the first hole 141 is connected with the bottom of the upper transmission connecting rod 13, and the first main shaft 101 of the upper single-stage grounding switch 1 passes through the second hole 142.
The first main shaft 101 is also connected to the upper region of the first part of the upper and lower transmission links 5, the synchronous IP guard 4 being provided between the bottom of the first part and the top of the second part of the upper and lower transmission links 5.
Referring to fig. 7, the synchronous IP guard 4 includes a retainer ring 24, a second spring 25, and a spacer 26.
The top of the limiting ring 24 is fixed on the tail end of the first part of the upper and lower transmission connecting rods 5, the lower end of the limiting ring 24 is provided with a second spring 25, the tail of the first part of the upper and lower transmission connecting rods 5 passes through the second spring 25 to reach the second part of the upper and lower transmission connecting rods 5, the other end of the second spring 25 is fixed on a baffle plate 26, the baffle plate 26 is placed on the bottom of the bus bar chamber, the bottom of the bus bar chamber is made of metal, and the baffle plate 26 can be in friction contact with the bottom plate of the bus bar chamber.
The baffle plate 26 is provided with a hole which is round and can just pass through the upper and lower transmission connecting rods 5; and a yielding hole is arranged on the bottom plate of the bus room according to the movement track of the upper and lower transmission connecting rods 5. The upper and lower transmission links 5 pass through the partition 26 and the bus-bar chamber bottom plate in turn.
The application relates to a transmission process of a switch cabinet interlocking mechanism, which comprises the following steps:
the middle earthing knife operating mechanism 6 rotates to drive the upper and lower transmission connecting rods 5 to move, the upper and lower transmission connecting rods 5 can drive the upper single-stage earthing switch to move in a chain manner, and meanwhile, the middle earthing knife operating mechanism 6 can synchronously transmit the upper single-stage earthing switch 1 to open and close with the lower single-stage earthing switch 7.
When the upper and lower transmission connecting rods 5 move, the synchronous IP protective device 4 also moves along with the movement, the partition plates 26 can make friction contact with the bottom plate of the bus bar chamber, and meanwhile, the partition plates 26 can cover the yielding holes on the bottom plate of the bus bar chamber, so that the integrity of the bus bar chamber is ensured.
When the upper single-stage grounding switch 1 and the lower single-stage grounding switch 7 are in the opening state, the upper single-stage grounding switch interlocking 3 is interlocked with the bus-bar chamber pressure release cover interlocking 2, so that the fan-shaped locking plate 8 locks the bus-bar chamber interlocking plate 22, and the bus-bar chamber pressure release cover 21 cannot be opened.
When the upper single-stage grounding switch 1 and the lower single-stage grounding switch 7 are switched on, the upper single-stage grounding switch interlocking 3 acts at the moment to enable the fan-shaped locking plate 8 to unlock the bus chamber interlocking plate 22, so that the bus chamber pressure release cover 21 can be opened, and the rear lower door of the direct-current cabinet can be synchronously opened at the moment.
Referring to fig. 8, a switch cabinet includes a switch cabinet interlock mechanism.
The interlocking mechanism adopts a spring normal-pressure limit connecting rod and a connecting rod transmission clamping hook, does not influence the electrical performance of equipment, and can open the pressure release cover of the bus chamber only when the double-grounding switch of the switch cabinet is in a closing position, so that the requirement of 'preventing from entering an electrified interval by mistake' in the five-prevention interlocking requirement is realized.
When the double grounding switch of the switch cabinet is not in a closing position, the upper single-stage grounding switch interlocking 3 is interlocked with the bus-bar chamber pressure release cover interlocking 2, so that the first interlocking plate 8 locks the bus-bar chamber interlocking plate 22, and the bus-bar chamber pressure release cover 21 cannot be opened, and at the moment, the rear lower door of the switch cabinet cannot be opened; when the middle earthing knife operating mechanism 6 operates the upper earthing switch and the lower earthing switch to the earthing switch-on position, the single-stage earthing switch interlocking 3 acts to enable the first interlocking plate 8 to unlock the bus-bar chamber interlocking plate 22, so that the bus-bar chamber pressure release cover 21 can be opened, and the rear lower door of the switch cabinet can be synchronously opened.
When the bus-bar chamber pressure release cover 21 is not installed, the upper and lower monopole grounding switches cannot be subjected to opening operation, the bus-bar chamber pressure release cover 21 is not installed, the limiting sliding shaft 15 moves along the spring telescopic shaft 20 under the action of the first spring 19, and the limiting shaft 16 synchronously limits the upper transmission connecting rod 13, so that the upper and lower monopole grounding switches cannot be operated, and the reverse interlocking function of the bus-bar chamber pressure release cover and the operating mechanism is achieved.
When an emergency fault occurs and the bus-bar chamber pressure release cover needs to be opened, the emergency unlocking of the bus-bar chamber pressure release cover 21 is removed, and the bus-bar chamber pressure release cover 21 is provided with a limit screw at the position of a bus-bar chamber interlocking plate 22 so as to ensure that the bus-bar chamber pressure release cover is positioned at a correct interlocking position; at the same time, an anti-drop plate 23 is provided to prevent the foreign matter from dropping to cause secondary accidents. The fixing screw on the bus-bar chamber pressure relief cover 21 is detached, the bus-bar chamber pressure relief cover 21 can be detached from the bus-bar chamber interlocking plate 22, the bus-bar chamber interlocking plate 22 naturally falls on the anti-falling plate 23, and the timeliness of processing when a product encounters a fault is improved.
The upper single-stage grounding switch and the lower single-stage grounding switch are arranged in a bus chamber and a cable chamber of the switch cabinet, the upper single-stage grounding switch 1 is reversely interlocked with a bus chamber pressure release cover 21, the lower single-stage grounding switch 7 is reversely interlocked with a rear lower door, the bus chamber pressure release cover 21 and the rear lower door can be normally opened at a closing position, and the bus chamber pressure release cover 21 and the rear lower door cannot be opened at a separating position.
The bus chamber pressure release cover 21 is not installed or the rear lower door is not closed, and the upper and lower single-stage grounding switches cannot be operated in a brake separating way; when an emergency fault occurs, the bus-bar chamber pressure release cover 21 can be opened, and the bus-bar chamber pressure release cover 21 is provided with emergency unlocking and anti-drop measures to prevent secondary accidents.
The upper and lower single-stage grounding switches are driven by connecting rods, so that the requirements of IP protection grades are met when the upper and lower single-stage grounding switches pass through different compartments, the synchronous closing and closing functions of the double grounding switches are realized, and the interlocking mechanism is economical and safe.
The application has the advantages of low cost, simple operation, high reliability, strong logic and good safety; the system has an emergency unlocking function, and improves timeliness of field processing. Provides a novel interlocking implementation scheme for complete equipment manufacturers and AC/DC power users.
Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter.
The foregoing is a further elaboration of the present application, and it is not intended that the application be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the application, all shall be deemed to fall within the scope of the application as defined by the claims which are filed herewith.
Claims (10)
1. The interlocking mechanism of the switch cabinet is characterized by comprising a bus room pressure release cover interlocking mechanism (2), an upper single-stage grounding switch interlocking mechanism (3), a synchronous IP protection device (4), an upper transmission connecting rod (5) and a lower transmission connecting rod and a middle grounding knife operating mechanism (6);
the bus room pressure release cover interlocking (2) is connected with the top end of the upper single-stage grounding switch interlocking (3), the tail end of the upper single-stage grounding switch interlocking (3) is connected with the top of the upper and lower transmission connecting rods (5) through the first main shaft (101), and the bottom of the upper and lower transmission connecting rods (5) is connected with the middle-arranged grounding knife operating mechanism (6) through the second main shaft (701);
a synchronous IP protection device (4) is arranged on the upper and lower transmission connecting rods (5);
the upper single-stage grounding switch interlock (3) comprises a fan-shaped lock plate (8), a supporting seat (11), a limiting device (12), an upper transmission connecting rod (13) and an upper crank (14);
the fan-shaped lock plate (8) is arranged on the supporting seat (11), the tail end of the supporting seat (11) is connected with the upper area of the upper transmission connecting rod (13), and the lower area of the upper transmission connecting rod (13) is connected with the upper crank (14).
2. The interlocking mechanism of a switch cabinet according to claim 1, wherein the upper crank (14) is installed on the first main shaft (101), and the top of the upper and lower transmission connecting rod (5) drives the upper single-stage grounding switch (1) to move through the first main shaft (101);
the bottom of the upper and lower transmission connecting rods (5) drives the lower single-stage grounding switch (7) to move through the second main shaft (702).
3. The interlocking mechanism of a switch cabinet according to claim 1, wherein the limiting device (12) comprises a limiting sliding shaft (15), a limiting shaft (16), a lining plate (17), a fixing seat (18), a first spring (19) and a spring telescopic shaft (20);
the limiting sliding shaft (15) penetrates through the lining plate (17) and stretches into the fixed seat (18), and a limiting shaft (16) is arranged at one end, close to the fixed seat (18), of the limiting sliding shaft (15);
the spring telescopic shaft (20) is arranged inside the fixed shaft (18), and a first spring (19) is arranged on the spring telescopic shaft (20).
4. The interlocking mechanism of a switch cabinet according to claim 1, wherein the interlocking mechanism of the pressure release cover of the bus bar chamber (2) comprises the pressure release cover of the bus bar chamber (21), an interlocking plate of the bus bar chamber (22) and an anti-dropping plate (23);
the bus room pressure release cover (21) and the anti-drop plate (23) are arranged on the bus room interlocking plate (22).
5. The interlocking mechanism of a switch cabinet according to claim 4, wherein the bus-bar chamber pressure release cover (21) is arranged at the top end of the bus-bar chamber interlocking plate (22), and the tail end of the bus-bar chamber interlocking plate (22) is connected with the single-stage grounding switch interlock (3).
6. A switchgear interlock according to claim 4, characterized in that the bottom plane of the busbar compartment interlock plate (22) is provided with holes in which protruding blocks of the sector lock plate (8) are placed.
7. A switch cabinet interlocking mechanism according to claim 4, characterized in that said drop-preventing plate (23) is a U-shaped plate.
8. A switchgear interlock according to claim 1, characterized in that the said synchronous IP guard (4) comprises a stop collar (24), a second spring (25) and a spacer (26);
the lower end of the limiting ring (24) is connected with one end of a second spring (25), the other end of the second spring (25) is connected with a baffle plate (26), and the baffle plate (26) is positioned on the bottom plate of the bus chamber;
the upper and lower transmission connecting rods (5) sequentially pass through the limiting rings (24), the second springs (25) and the partition plates (26);
the limiting rings (24) are fixed on the upper and lower transmission connecting rods (5).
9. The interlocking mechanism of a switch cabinet according to claim 8, wherein the partition plate (26) is provided with a circular hole, and the bottom plate of the bus room is provided with a yielding hole according to the movement track of the upper and lower transmission connecting rods (5).
10. A switchgear comprising a switchgear interlock mechanism as claimed in any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310869339.4A CN116682691A (en) | 2023-07-14 | 2023-07-14 | Switch cabinet interlocking mechanism and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310869339.4A CN116682691A (en) | 2023-07-14 | 2023-07-14 | Switch cabinet interlocking mechanism and switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116682691A true CN116682691A (en) | 2023-09-01 |
Family
ID=87785686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310869339.4A Pending CN116682691A (en) | 2023-07-14 | 2023-07-14 | Switch cabinet interlocking mechanism and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116682691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116935600A (en) * | 2023-09-18 | 2023-10-24 | 国网山东省电力公司日照供电公司 | Error locking prevention fault monitoring and warning system for high-voltage switch cabinet |
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2023
- 2023-07-14 CN CN202310869339.4A patent/CN116682691A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116935600A (en) * | 2023-09-18 | 2023-10-24 | 国网山东省电力公司日照供电公司 | Error locking prevention fault monitoring and warning system for high-voltage switch cabinet |
| CN116935600B (en) * | 2023-09-18 | 2023-11-28 | 国网山东省电力公司日照供电公司 | Error locking prevention fault monitoring and warning system for high-voltage switch cabinet |
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