CN108511257A - It is grounded interlock - Google Patents
It is grounded interlock Download PDFInfo
- Publication number
- CN108511257A CN108511257A CN201810480232.XA CN201810480232A CN108511257A CN 108511257 A CN108511257 A CN 108511257A CN 201810480232 A CN201810480232 A CN 201810480232A CN 108511257 A CN108511257 A CN 108511257A
- Authority
- CN
- China
- Prior art keywords
- shaft
- turntable
- ground connection
- switch
- interlock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
Abstract
The present invention relates to power switchgear technical fields,More particularly to it is grounded interlock,It includes holder to be grounded interlock,Operator shaft,Earthing knife-switch shaft,Main turntable and ground connection turntable,The operator shaft and earthing knife-switch shaft are respectively assembled on holder,The holder is equipped with ground connection turntable shaft,It is equipped with bayonet on the main turntable and ground connection turntable,The two is interlocked by bayonet,The main turntable is fixedly connected in operator shaft,The ground connection turntable shaft and earthing knife-switch shaft rotation center are misaligned,The ground connection turntable is fixedly connected on ground connection turntable shaft,It further includes connecting lever and pull rod to be grounded interlock,Described connecting lever one end is fixedly connected in earthing knife-switch shaft,The other end is hinged with pull rod,Described pull rod one end is hinged with connecting lever,The other end and ground connection turntable are hinged,The effect of wherein connecting lever and pull rod is to extend the operating distance of interlock,Solve the problems, such as main line way switch existing in the prior art and grounding switch operation interlocking mechanism poor universality.
Description
Technical field
The present invention relates to power switchgear technical fields, more particularly to are grounded interlock.
Background technology
In electric power power transmission and transforming equipment, switchgear is mainly used for electric system (including power plant, substation, power transmission and distribution
The users such as circuit and industrial and mining enterprises) control and protection, can both be needed a part of power equipment or circuit according to operation of power networks
Input is out of service, also can quickly cut off faulty component from power grid in power equipment or line failure, to protect
Demonstrate,prove the normal operation of no failure part and the safety of equipment, operating maintenance personnel in power grid.Therefore, switchgear is extremely important
Equipment for power transmission and distribution, safe and reliable operation has a very important significance the safely, effectively operation of electric system.
In practical work process, after switchgear disconnects, often in conducting position there are a large amount of residual charge, these
Charge is all often the inducement of serious accident.Therefore it after switchgear disconnects, is required for using grounded parts to eliminate
These charges, to ensure the safety of operating maintenance personnel.And certain interlocking is needed to fill between grounded part and main line
It sets, to ensure that the two cannot be closed at；Traditional interlocking structure needs professional's debugging and maintenance, maintenance of equipment personnel may
There can be maloperation and division is not in place, and be fixed due to only relying on jackscrew between connecting lever plate and shaft, long period of operation meeting
The shortcomings that the case where in the presence of failure, it is professional too strong that there are debugging and maintenances, long-time stability difference and poor universality, increases mistake
The security risks such as operation and division are not in place.
The Chinese invention patent that application publication number is CN107785207A, data of publication of application is 2018.03.09 discloses one
Kind high voltage isolator and grounding switch operation interlocking mechanism, the mechanism include babinet, disconnecting switch transmission shaft, earthing switch biography
Moving axis, the babinet rear and front end are respectively arranged with drive axle support, the disconnecting switch transmission shaft and earthing switch transmission shaft
It is respectively assembled on holder, disconnecting switch interlock plate is installed on the disconnecting switch transmission shaft, the earthing switch passes
Earthing switch interlock plate is installed on moving axis, the disconnecting switch interlock plate and earthing switch interlock plate are that diameter is identical
Disk, the disconnecting switch interlock plate and earthing switch interlock plate offer round notch.The invention in disconnecting switch by passing
It is respectively provided with disconnecting switch interlock plate and earthing switch interlock plate on moving axis and earthing switch transmission shaft, is interlocked in disconnecting switch
Round notch is offered on plate and earthing switch interlock plate, disconnecting switch interlock plate and earthing switch interlock plate pass through round notch
To form interlocking.When the round notch of disconnecting switch interlock plate and earthing switch interlock plate is opposite, disconnecting switch transmission shaft and
Earthing switch transmission shaft can rotate.When the non-circular notch of the round notch and earthing switch interlock plate of disconnecting switch interlock plate
When opposite, earthing switch transmission shaft can rotate.When earthing switch interlock plate round notch and disconnecting switch interlock plate it is non-
When round notch contact, disconnecting switch transmission shaft can rotate.This interlocking mechanism is simple in structure, convenient to install and maintain, convenient for patrolling
Inspection, manufacturing cost is low, non-maintaining.But the disconnecting switch of a kind of high voltage isolator and grounding switch operation interlocking mechanism
The position of transmission shaft and earthing switch transmission shaft is fixed, in disconnecting switch and earthing switch hypertelorism, needs to increase
The size of interlock plate is unsatisfactory for the needs of practical application, there are problems that poor universality.
Invention content
The object of the present invention is to provide a kind of ground connection interlocks, to solve above-mentioned disconnecting switch existing in the prior art
The problem of with grounding switch operation interlocking mechanism poor universality.
To achieve the above object, the technical solution of ground connection interlock of the invention is：Ground connection interlock include holder,
Operator shaft, earthing knife-switch shaft, main turntable and ground connection turntable, the operator shaft and earthing knife-switch shaft are respectively assembled on holder, institute
It states and is provided with circular arc bayonet on main turntable and earthing knife-switch turntable, the main turntable is fixedly connected in operator shaft, on the holder
It is equipped with ground connection turntable shaft, the ground connection turntable shaft and earthing knife-switch shaft rotation center are misaligned, and the ground connection turntable is fixedly mounted
On ground connection turntable shaft, the ground connection interlock further includes connecting lever and pull rod, and described connecting lever one end is fixedly mounted on ground swivel
On axis, the other end is hinged with pull rod, and the pull rod other end and ground connection turntable are hinged.
Beneficial effects of the present invention are：Operator shaft and main turntable are used for the closure of main control line way switch or cut-off, ground
Swivel axis and ground connection turntable are used to control the closure of earthing switch or cut-off, and main turntable is with ground connection turntable by circular arc bayonet come shape
At interlocking, when the circular arc bayonet of main shaft is opposite with the ground connection circular arc bayonet of turntable, shaft of operating and earthing knife-switch shaft can turn
It is dynamic；When the circular arc bayonet of main turntable is opposite with the ground connection non-circular arc bayonet of turntable, only earthing knife-switch shaft can rotate；Work as ground connection
When the circular arc bayonet of turntable is opposite with the non-circular arc bayonet of main turntable, only main shaft can rotate；It is cut with scissors by being grounded on turntable
The pull rod connect pulls the connecting lever rotation in earthing knife-switch shaft, mutual at a distance between main line way switch and earthing switch to realize
Lock.
Further, in order to enable devices to meet there are one or two contacts earthing switch needs, it is described to connect
There are two the earthing knife-switch shaft of ground interlock and ground connection turntable shaft are equal, earthing knife-switch shaft outside, is grounded including turntable shaft, and the master turns
Axle position is between two are grounded turntable shaft.
Further, to facilitate installation, the earthing knife-switch shaft, main shaft and the center of rotation axis for being grounded turntable shaft
In the same plane.
Further, the ground connection turntable suit is fixed on ground connection turntable shaft, using suit, ground connection turntable and ground connection
It answers pressure small between turntable shaft, can avoid being fixedly connected with failure caused by being used for a long time.
Further, described connecting lever one end suit is fixed in earthing knife-switch shaft, the other end and pull rod by pin hinges,
It is above-mentioned identical using acting on for suit, it is easy to connect and more reliable than jackscrew fixation using pin hinges, it is not vulnerable.
Further, the pull rod both ends are hinged with ground connection turntable and connecting lever respectively by pin, connected by pin
Act on it is above-mentioned identical.
Description of the drawings
Fig. 1 is schematic diagram of the operator in "on" position of the ground connection interlock specific embodiment 1 of the present invention；
Fig. 2 is schematic diagram of the operator in gate-dividing state of the ground connection interlock specific embodiment 1 of the present invention；
Fig. 3 is schematic diagram of the operator in "on" position of the ground connection interlock specific embodiment 2 of the present invention；
Fig. 4 is schematic diagram of the operator in gate-dividing state of the ground connection interlock specific embodiment 2 of the present invention；
In figure：1- operator shafts；2- main turntables；3- earthing knife-switch shafts；4- is grounded turntable；5- pull rods；6- connecting levers；7- is grounded turntable
Axis；8- straight pins；9- holders.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment 1 of the ground connection interlock of the present invention, as shown in Figure 1 to Figure 2, which includes branch
It is equipped with circular arc on frame 9, operator shaft 1, earthing knife-switch shaft 3, main turntable 2 and ground connection turntable 4, the main turntable 2 and ground connection turntable 4
Bayonet, shaft 1 of operating and earthing knife-switch shaft 3 are assemblied on holder 9 by bearing support, are equipped with by bearing on holder 9 respectively
Be grounded turntable shaft 7, in order to enable devices to meet there are one or two contacts earthing switch needs, be grounded interlock
There are two earthing knife-switch shaft 3 and ground connection turntable shaft 7 are equal, earthing knife-switch shaft 3 outside, is grounded including turntable shaft 7, the main shaft 1 is located at
Between two ground connection turntable shafts 7, in addition to it is easy for installation, in the rotation of earthing knife-switch shaft 3, operator shaft 1 and ground connection turntable shaft 7
In the same plane, the suit of main turntable 2 is fixedly connected in operator shaft 1 mandrel line, and ground connection turntable shaft 7 is revolved with earthing knife-switch shaft 3
It is misaligned to turn center, the ground connection suit of turntable 4 is fixed on ground connection turntable shaft, and ground connection interlock further includes connecting lever 6 and pull rod 5,
6 one end of connecting lever suit is fixed in earthing knife-switch shaft, and the other end is hinged by straight pin 8 with pull rod 5, and 5 other end of pull rod passes through circle
Pin 8 is hinged on ground connection turntable 4.Shaft 1 of wherein operating and main turntable 2 are used for the closure of main control line way switch or cut-off,
Earthing knife-switch shaft 3 and ground connection turntable 4 are used to control the closure of earthing switch or cut-off, and main turntable 2 and ground connection turntable 4 pass through circular arc card
Mouthful come formed interlocking, when the circular arc bayonet of main turntable 2 and ground connection the circular arc bayonet of turntable 4 it is opposite when, operator shaft 1 and swivel
Axis 3 is rotatable；When the circular arc bayonet of main turntable 2 is opposite with the ground connection non-circular arc bayonet of turntable 4, only earthing knife-switch shaft 3 can
With rotation；When the circular arc bayonet for being grounded turntable 4 is opposite with the non-circular arc bayonet of main turntable 2, shaft 1 of only operating can turn
It is dynamic.By being grounded pull rod 5 hinged on turntable 4, pulls the connecting lever 6 in earthing knife-switch shaft 3 to rotate, connect out with realizing remote operation
The break-make of pass interlocks to realize between structure at a distance.
The specific embodiment 2 of the ground connection interlock of the present invention, as shown in Figure 3 and Figure 4, the ground connection interlocking in the present embodiment
The ground connection interlock of device and above-mentioned specific embodiment 1 difference lies in：In order to make device simplify, the earthing knife-switch shaft and connect
Ground turntable shaft only there are one, and be arranged in operator shaft any homonymy in left and right.
The specific embodiment 3 of the ground connection interlock of the present invention, ground connection interlock in the present embodiment with it is above-mentioned specific
The ground connection interlock of embodiment 1 difference lies in：According to actual demand, the earthing knife-switch shaft, operator shaft and ground connection turntable
The center of rotation axis of axis can be in that parallel space is arranged.
The specific embodiment 4 of the ground connection interlock of the present invention, ground connection interlock in the present embodiment with it is above-mentioned specific
The ground connection interlock of embodiment 1 difference lies in：The connecting lever is welded in earthing knife-switch shaft, and the earthing knife-switch turntable, which is welded on, to be connect
On ground turntable shaft, the main turntable is welded in operator shaft.
The specific embodiment 5 of the ground connection interlock of the present invention, ground connection interlock in the present embodiment with it is above-mentioned specific
The ground connection interlock of embodiment 1 difference lies in：There is connecting cylinder at the pull rod both ends, by connecting cylinder respectively at connecting lever
It is hinged with ground connection turntable.
Claims (6)
1. be grounded interlock, including holder, operator shaft, earthing knife-switch shaft, main turntable and ground connection turntable, the operator shaft with
Earthing knife-switch shaft is respectively assembled on holder, and circular arc bayonet is provided on the main turntable and earthing knife-switch turntable, and the main turntable is fixed
It is connected in operator shaft, it is characterised in that：Ground connection turntable shaft, the ground connection turntable shaft and ground swivel are equipped on the holder
Axis rotation center is misaligned, and the ground connection turntable is fixedly mounted on ground connection turntable shaft, and the ground connection interlock further includes turning
Arm and pull rod, described connecting lever one end are fixedly mounted in earthing knife-switch shaft, and the other end and pull rod are hinged, the pull rod other end with connect
Ground turntable is hinged.
2. ground connection interlock according to claim 1, it is characterised in that：It is described ground connection interlock earthing knife-switch shaft and
Be grounded turntable shaft it is equal there are two, earthing knife-switch shaft outside, be grounded turntable shaft including, the main shaft be located at two ground connection turntable shafts it
Between.
3. ground connection interlock according to claim 1 or 2, it is characterised in that：The earthing knife-switch shaft, main shaft and ground connection
The center of rotation axis of turntable shaft is in the same plane.
4. ground connection interlock according to claim 1 or 2, it is characterised in that：The ground connection turntable suit, which is fixed on, to be connect
On ground turntable shaft.
5. ground connection interlock according to claim 1 or 2, it is characterised in that：Connecting lever one end suit is fixed on ground
On swivel axis, the other end is hinged with pull rod using pin.
6. ground connection interlock according to claim 5, it is characterised in that：The pull rod both ends respectively using pin with connect
Ground turntable and connecting lever are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480232.XA CN108511257A (en) | 2018-05-18 | 2018-05-18 | It is grounded interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480232.XA CN108511257A (en) | 2018-05-18 | 2018-05-18 | It is grounded interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108511257A true CN108511257A (en) | 2018-09-07 |
Family
ID=63400808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810480232.XA Pending CN108511257A (en) | 2018-05-18 | 2018-05-18 | It is grounded interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108511257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130232A (en) * | 2021-04-27 | 2021-07-16 | 沈阳纽沃德建筑科技有限公司 | Interlocking type isolation/grounding switch |
| CN113851340A (en) * | 2021-08-20 | 2021-12-28 | 平高集团有限公司 | Three-station operating mechanism and switch cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629193Y (en) * | 2003-03-13 | 2004-07-28 | 埃尔凯电器（珠海）有限公司 | Loading switch operating interlocking linking device |
| CN103928253A (en) * | 2014-05-01 | 2014-07-16 | 陈志源 | 110 KV double-grounding-isolation-switch mechanical locking device |
| CN203799945U (en) * | 2014-05-01 | 2014-08-27 | 陈惠� | 220kV single grounding isolation switch machinery blocking device |
| CN203812757U (en) * | 2014-05-01 | 2014-09-03 | 陈志源 | Mechanical locking device of 110kV single-grounded isolating switch |
| CN208385293U (en) * | 2018-05-18 | 2019-01-15 | 河南森源电气股份有限公司 | A kind of ground connection interlock |
-
2018
- 2018-05-18 CN CN201810480232.XA patent/CN108511257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629193Y (en) * | 2003-03-13 | 2004-07-28 | 埃尔凯电器（珠海）有限公司 | Loading switch operating interlocking linking device |
| CN103928253A (en) * | 2014-05-01 | 2014-07-16 | 陈志源 | 110 KV double-grounding-isolation-switch mechanical locking device |
| CN203799945U (en) * | 2014-05-01 | 2014-08-27 | 陈惠� | 220kV single grounding isolation switch machinery blocking device |
| CN203812757U (en) * | 2014-05-01 | 2014-09-03 | 陈志源 | Mechanical locking device of 110kV single-grounded isolating switch |
| CN208385293U (en) * | 2018-05-18 | 2019-01-15 | 河南森源电气股份有限公司 | A kind of ground connection interlock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130232A (en) * | 2021-04-27 | 2021-07-16 | 沈阳纽沃德建筑科技有限公司 | Interlocking type isolation/grounding switch |
| CN113851340A (en) * | 2021-08-20 | 2021-12-28 | 平高集团有限公司 | Three-station operating mechanism and switch cabinet |
| CN113851340B (en) * | 2021-08-20 | 2023-11-07 | 平高集团有限公司 | Three-station operating mechanism and switch cabinet |
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