High voltage switch locking device

A high-voltage switch and locking device technology, which is applied to the power device, electric switch, and electrical components inside the switch to achieve the effects of reducing labor intensity, convenient operation, and ensuring reliability

CN101996797BInactive Publication Date: 2012-09-19NINGBO XINGBANG ELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2012-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a high voltage switch locking device, and belongs to the technical field of high voltage switches. At present, the high voltage switch has no locking device and can be switched on at any time to supply power so as to bring serious threats to the safety of a maintenance person. The high voltage switch locking device comprises a box body and is characterized in that: a fixedshaft sleeve is embedded on the box body, a movably connected locking pin shaft is arranged in the fixed shaft sleeve, and the rear end of the locking pin shaft is connected with a movable rack bar driven by an electric driving assembly. The high voltage switch locking device has the advantages that: the motion of a crank arm of a main shaft of the high voltage switch is affected by the motion ofthe locking pin shaft so as to realize locking and unlocking of the high voltage switch and improve the safety coefficient when the maintenance person works, and the operation is convenient and quick; a warning scroll linked with the locking pin shaft meets the requirement of a power department, the operation person does not need to go to the site, in particular for overhauling remote and trafficinconvenient circuits, the weariness of the operation person on the run is avoided, and the labor intensity is reduced; and the special emergency unlocking assembly ensures the reliability of the unlocking function of a locking mechanism.
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Description

Technical field

[0001] The invention relates to a high-voltage switch locking device, which belongs to the technical field of high-voltage switches.

Background technique

[0002] High-voltage switchgear is usually installed on high-voltage lines for opening and closing operations. When a certain line needs to enter the "inspection state", the high-voltage switch is first opened, and after the maintenance is completed, the high-voltage switch is closed to resume power transmission. Because the existing high-voltage switch does not have a locking device, it cannot be locked, and the operator can switch on and send power at any time. Although the electric power sector has strict safety operating procedures, misoperation and wrong power transmission still occur from time to time, which poses a serious threat to the personal safety of maintenance personnel. In addition, a warning sign with the words "no closing" must be set next to the opening switch; the warning sign "no c...

Examples

Embodiment Construction

[0019] The substantive features of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as Figure 1-4 As shown, the high-voltage switch locking device includes a casing 15, and a fixed bushing 11 is embedded in the casing 15, and a locking pin 12 that is movably connected is arranged in the fixed bushing 11, and the rear end of the locking pin 12 is connected to the The movable gear rod 9 driven by the electric drive assembly is connected. The electric drive assembly includes a motor 1, a motor gear 2 installed on the output shaft of the motor, and a shaft gear 4 meshed with the motor gear 2. The upper edge of the shaft gear 4 is located on the stroke of the movable rack 9. The shaft gear 4 is connected with a listing shaft 3 with a warning banner 5 . The lower end of the warning banner 5 is connected with a round steel hanging shaft 6, and the two side walls of the box body 15 along the ...