CN208385293U - A kind of ground connection interlock - Google Patents

A kind of ground connection interlock Download PDF

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Publication number
CN208385293U
CN208385293U CN201820743484.2U CN201820743484U CN208385293U CN 208385293 U CN208385293 U CN 208385293U CN 201820743484 U CN201820743484 U CN 201820743484U CN 208385293 U CN208385293 U CN 208385293U
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China
Prior art keywords
shaft
ground connection
turntable
switch
interlock
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CN201820743484.2U
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Chinese (zh)
Inventor
史新伟
王建业
李刚
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Henan Senyuan Electric Co Ltd
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Henan Senyuan Electric Co Ltd
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Abstract

The utility model relates to power switchgear technical fields, in particular to it is grounded interlock, being grounded interlock includes bracket, operator shaft, earthing knife-switch shaft, main turntable and ground connection turntable, the operator shaft and earthing knife-switch shaft are respectively assembled on bracket, the bracket is equipped with ground connection turntable shaft, bayonet is equipped 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 is not overlapped with earthing knife-switch shaft rotation center, the ground connection turntable is fixedly connected on ground connection turntable shaft, being grounded interlock further includes connecting lever and pull rod, 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 and connecting lever are hinged, the other end and ground connection turntable are hinged, wherein the effect of connecting lever and pull rod is to extend interlock Operating distance solves the problems, such as main line way switch existing in the prior art and grounding switch operation interlocking mechanism poor universality.

Description

A kind of ground connection interlock
Technical field
The utility model relates to power switchgear technical fields, in particular to ground connection interlock.
Background technique
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 route and industrial and mining enterprises) control and protection, can both be needed according to operation of power networks by a part of power equipment or route Investment is out of service, can also 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, requires 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 guarantee that the two cannot be closed at;Traditional interlocking structure needs professional's debugging and maintenance, and 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 utility model patent that application publication number is CN107785207A, data of publication of application is 2018.03.09 discloses A kind of high voltage isolator and grounding switch operation interlocking mechanism, the mechanism include cabinet, disconnecting switch transmission shaft, and ground connection is opened Transmission shaft is closed, the cabinet rear and front end is respectively arranged with drive axle support, and the disconnecting switch transmission shaft and earthing switch pass Moving axis is respectively assembled on bracket, and disconnecting switch interlock plate is fixedly installed on the disconnecting switch transmission shaft, and the ground connection is opened It closes and is fixedly installed with earthing switch interlock plate on transmission shaft, the disconnecting switch interlock plate and earthing switch interlock plate are diameter phase Same disk, the disconnecting switch interlock plate and earthing switch interlock plate offer round notch.This utility model by every It leaves to close and is respectively provided with disconnecting switch interlock plate and earthing switch interlock plate on transmission shaft and earthing switch transmission shaft, be isolated Round notch is offered on switch interlock plate and earthing switch interlock plate, disconnecting switch interlock plate and earthing switch interlock plate pass through Round notch interlocks to be formed.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 disconnecting switch interlock plate round notch and earthing switch interlock plate it is non- When round notch is opposite, earthing switch transmission shaft can be rotated.When the round notch of earthing switch interlock plate is associated with keeping apart When the non-circular notch contact of jam plate, disconnecting switch transmission shaft can be rotated.This interlocking mechanism's structure is simple, installation and maintenance side Just, it is convenient for inspection, manufacturing cost is low, non-maintaining.But a kind of described high voltage isolator and grounding switch operation interlocking mechanism Disconnecting switch transmission shaft and earthing switch transmission shaft position be it is fixed, in disconnecting switch and earthing switch hypertelorism When, it needs to increase the size of interlock plate, is unsatisfactory for the needs of practical application, there are problems that poor universality.
Utility model content
The purpose of the utility model is to provide a kind of ground connection interlocks, to solve above-mentioned isolation existing in the prior art The problem of switch is with grounding switch operation interlocking mechanism poor universality.
To achieve the above object, the technical solution of the ground connection interlock of the utility model are as follows: being grounded interlock includes Bracket, operator shaft, earthing knife-switch shaft, main turntable and ground connection turntable, the operator shaft and earthing knife-switch shaft are respectively assembled at bracket On, circular arc bayonet is provided on the main turntable and earthing knife-switch turntable, the main turntable is fixedly connected in operator shaft, the branch Ground connection turntable shaft is equipped on frame, the ground connection turntable shaft is not overlapped with earthing knife-switch shaft rotation center, and the ground connection turntable is fixed It is 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 On swivel axis, the other end is hinged with pull rod, and the pull rod other end and ground connection turntable are hinged.
The utility model has the following beneficial effects: operator shaft and main turntable are used for the closure of main control line way switch or open Disconnected, earthing knife-switch shaft and ground connection turntable are used to control the closure of earthing switch or cut-off, and main turntable and ground connection turntable pass through circular arc card Mouth interlocks to be formed, 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 It is rotatable;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 be rotated; When the circular arc bayonet for being grounded turntable is opposite with the non-circular arc bayonet of main turntable, only main shaft can be rotated;Turned by ground connection Hinged pull rod on disk pulls the connecting lever rotation in earthing knife-switch shaft, to realize long distance between main line way switch and earthing switch From interlocking.
Further, described to connect in order to enable devices to the needs for meeting the earthing switch for having one or two contact There are two the earthing knife-switch shaft and ground connection turntable shaft of ground interlock are equal, earthing knife-switch shaft outside, is grounded including turntable shaft, and the master turns Axle position is between two ground connection turntable shafts.
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, is grounded 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, connecting lever one end suit is fixed in earthing knife-switch shaft, and the other end and pull rod pass through pin hinges, It is above-mentioned identical using acting on for suit, it is easy to connect and more fixed than jackscrew reliable 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.
Detailed description of the invention
Fig. 1 is that the operator of the ground connection interlock specific embodiment 1 of the utility model is in the schematic diagram of "on" position;
Fig. 2 is that the operator of the ground connection interlock specific embodiment 1 of the utility model is in the schematic diagram of gate-dividing state;
Fig. 3 is that the operator of the ground connection interlock specific embodiment 2 of the utility model is in the schematic diagram of "on" position;
Fig. 4 is that the operator of the ground connection interlock specific embodiment 2 of the utility model is in the schematic diagram of gate-dividing state;
In figure: 1- operator shaft;2- main turntable;3- earthing knife-switch shaft;4- is grounded turntable;5- pull rod;6- connecting lever;7- ground connection turns Dish axle;8- straight pin;9- bracket.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment 1 of the ground connection interlock of the utility model, as shown in Figure 1 to Figure 2, the ground connection interlock packet Bracket 9, operator shaft 1, earthing knife-switch shaft 3, main turntable 2 and ground connection turntable 4 are included, is equipped on the main turntable 2 and ground connection turntable 4 Circular arc bayonet, shaft 1 of operating and earthing knife-switch shaft 3 are assemblied on bracket 9 by bearing support respectively, are filled on bracket 9 by bearing Equipped with ground connection turntable shaft 7, in order to enable devices to the needs for meeting the earthing switch for having one or two contact, ground connection interlocking dress There are two the earthing knife-switch shaft 3 and ground connection turntable shaft 7 set are equal, earthing knife-switch shaft 3 outside, is grounded including turntable shaft 7, the main shaft 1 Between two ground connection turntable shafts 7, in addition to easy for installation, earthing knife-switch shaft 3, operator shaft 1 and the rotation for being grounded turntable shaft 7 Turn central axis in the same plane, the suit of main turntable 2 is fixedly connected in operator shaft 1, ground connection turntable shaft 7 and earthing knife-switch shaft 3 rotation centers are not overlapped, and 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 and pull rod 5 are hinged by straight pin 8, and 5 other end of pull rod passes through Straight 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 open Disconnected, 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 circle Arc bayonet interlocks to be formed, when the circular arc bayonet of main turntable 2 is opposite with the ground connection circular arc bayonet of turntable 4, shaft 1 of operating and ground 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 rotate;When the circular arc bayonet for being grounded turntable 4 is opposite with the non-circular arc bayonet of main turntable 2, only operating shaft 1 can be with Rotation.By pull rod 5 hinged on ground connection turntable 4, the connecting lever 6 in earthing knife-switch shaft 3 is pulled to rotate, connect with realizing remote operation It switches on-off, is interlocked at a distance between structure to realize.
The specific embodiment 2 of the ground connection interlock of the utility model, as shown in Figure 3 and Figure 4, the ground connection in the present embodiment The difference of interlock and the ground connection interlock of above-mentioned specific embodiment 1 is: in order to simplify device, the earthing knife-switch shaft With ground connection turntable shaft only one, and be arranged in operator shaft left and right it is any ipsilateral.
The specific embodiment 3 of the ground connection interlock of the utility model, ground connection interlock in the present embodiment with it is above-mentioned The difference of the ground connection interlock of specific embodiment 1 is: according to actual needs, the earthing knife-switch shaft, operator shaft and ground connection The center of rotation axis of turntable shaft can be arranged in parallel space.
The specific embodiment 4 of the ground connection interlock of the utility model, ground connection interlock in the present embodiment with it is above-mentioned The difference of the ground connection interlock of specific embodiment 1 is: the connecting lever is welded in earthing knife-switch shaft, the earthing knife-switch turntable welding On ground connection turntable shaft, the main turntable is welded in operator shaft.
The specific embodiment 5 of the ground connection interlock of the utility model, ground connection interlock in the present embodiment with it is above-mentioned The difference of the ground connection interlock of specific embodiment 1 is: there is connecting cylinder at the pull rod both ends, by connecting cylinder respectively at Connecting lever and ground connection turntable are hinged.

Claims (6)

1. be grounded interlock, including bracket, operator shaft, earthing knife-switch shaft, main turntable and ground connection turntable, the operator shaft with Earthing knife-switch shaft is respectively assembled on bracket, 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 bracket Axis rotation center is not overlapped, 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 is hinged with pull rod, 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 There are two ground connection turntable shaft is equal, earthing knife-switch shaft outside, is grounded including turntable shaft, and main shaft is located between two ground connection turntable shafts.
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 using pin and pull rod.
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.
CN201820743484.2U 2018-05-18 2018-05-18 A kind of ground connection interlock Active CN208385293U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820743484.2U CN208385293U (en) 2018-05-18 2018-05-18 A kind of ground connection interlock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820743484.2U CN208385293U (en) 2018-05-18 2018-05-18 A kind of ground connection interlock

Publications (1)

Publication Number Publication Date
CN208385293U true CN208385293U (en) 2019-01-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108511257A (en) * 2018-05-18 2018-09-07 河南森源电气股份有限公司 It is grounded interlock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108511257A (en) * 2018-05-18 2018-09-07 河南森源电气股份有限公司 It is grounded interlock

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