CN202150379U - Locking device for overhaul - Google Patents

Locking device for overhaul Download PDF

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Publication number
CN202150379U
CN202150379U CN 201120217074 CN201120217074U CN202150379U CN 202150379 U CN202150379 U CN 202150379U CN 201120217074 CN201120217074 CN 201120217074 CN 201120217074 U CN201120217074 U CN 201120217074U CN 202150379 U CN202150379 U CN 202150379U
Authority
CN
China
Prior art keywords
cabinet
ground connection
grounding
locking device
connection block
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.)
Expired - Lifetime
Application number
CN 201120217074
Other languages
Chinese (zh)
Inventor
蔡玉华
刘丹民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Tianling Switchgear Co Ltd
Original Assignee
Shanghai Tianling Switchgear Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Tianling Switchgear Co Ltd filed Critical Shanghai Tianling Switchgear Co Ltd
Priority to CN 201120217074 priority Critical patent/CN202150379U/en
Application granted granted Critical
Publication of CN202150379U publication Critical patent/CN202150379U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model discloses a locking device for overhaul, characterized in that a cabinet body is provided with a grounding stop block, a cabinet door is provided with a rectangular hole arranged at a position opposite to the grounding stop block and having a shape corresponding to that of the grounding stop block, the grounding stop block is connected with a grounding bar in a cabinet, and the grounding bar in a cabinet is connected with a total grounding wire of a transformer station. The locking device for overhaul is simple in structure, convenient in installation, simple and reliable in operation, and maintenance-free. The fault of hanging ground wire switch-on caused by erroneous operation of an operator is avoided, and personal safety as well as safe and reliable operation of an electrical network are ensured.

Description

A kind of maintenance locking device
Technical field
The utility model relates to the electrical safety technology, is specifically related to a kind of maintenance locking device.
Background technology
Make the device of one or several other position component or operation that the operation of switch depends on equipment locking device.A lot of electric equipments must be opened the cabinet door hanging earthing conductor processing is carried out in the compartment loop of maintenance when maintenance, after maintenance finishes, must remove earth connection, close the Over-The-Counter door then and run the pass operation jointly.In the real operation, lean on two operative employees to supervise mutually and accomplish, if in case carelessness forgets that with earth connection dismounting just closes the cabinet door and run jointly and close operation, the accident that will be short-circuited, the therefore this method that solves artificially is very unreliable.
For fear of the generation of this accident, be necessary to design a kind of locking device that prevents that above-mentioned situation from taking place.
The utility model content
To the problem of mentioning in the above-mentioned background technology, the utility model proposes a kind of maintenance locking device, adopts the blocking method of enforceable machinery, avoids artificial operate miss, thereby avoids the generation of accident.
The technical scheme of the utility model is:
A kind of maintenance locking device; It is characterized in that, a ground connection block is set on the cabinet, on the cabinet door position relative with the ground connection block be provided with one with the corresponding oblong aperture of ground connection block profile; Said ground connection block connects ground connection row in the cabinet, and ground connection row links to each other with transformer station total earth connection in the cabinet.
During overhaul of the equipments,, open the cabinet door with the switch operating mechanism separating brake; Connect three-phase bus bar and ground connection block with special-purpose earth connection, special-purpose earth connection is made up of four binding clips and a ground connection copper braided wire, and three binding clips of one of earth connection are fixed on the three-phase bus bar in the cabinet; The other end binding clip of earth connection is fixed on the ground connection block; The ground connection block links to each other with transformer station total earth connection through ground connection row in the cabinet, guarantees that ground connection is reliable, and at this moment the staff just can overhaul inside compartment safely.
During equipment operation, remove three binding clips and the binding clip on the ground connection block on the three-phase bus bar, close the cabinet door.If operating personnel forget dismounting, the binding clip on the ground connection block firmly makes it close the cabinet door shield, thereby can't the console switch operating mechanism, therefore must remove binding clip close cabinet behind the door could the console switch operating mechanism to closing position.
Interlocking between cabinet door and the switch operating mechanism, mechanism is non-shut-brake, and the cabinet door is not opened; The cabinet door is not shut, and mechanism can not operate.
This maintenance locking device is simple in structure, easy for installation, operation is simple and reliable, non-maintaining.The hanging earthing conductor of having avoided operating personnel to take place because of operate miss is run the fault of pass jointly, has guaranteed the safe and reliable to operation of personal safety and electrical network.
Description of drawings
Fig. 1 is the installation diagram of the utility model.
Fig. 2 is the partial enlarged drawing in A district among Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete accompanying drawing, further set forth the utility model.
Assembling is as shown in Figure 1 when using the maintenance of maintenance locking device of the utility model; One ground connection block 2 is set on the cabinet 1; On the cabinet door 6 with ground connection block 2 relative positions be provided with one with the corresponding oblong aperture 7 of ground connection block profile, said ground connection block 2 connects ground connection row 8 in the cabinets, ground connection row 8 links to each other with transformer station total earth connection in the cabinet; Use special-purpose earth connection that three-phase bus bar 5 is linked to each other with ground connection block 2; Three binding clips 3 of special-purpose earth connection one end are clipped in respectively on the three-phase bus bar 5, and a binding clip 3 of the other end is clipped on the ground connection block 2, and is as shown in Figure 2.
Like this, forget special-purpose earth connection is taken off that when closing the cabinet door, owing to the binding clip that accompanies on the ground connection block, the cabinet goalkeeper can't close if the back operating personnel are accomplished in maintenance, switch operating mechanism 4 also just can't close a floodgate, and has guaranteed the accident that can not be short-circuited.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.

Claims (1)

1. maintenance locking device; It is characterized in that, a ground connection block is set on the cabinet, on the cabinet door position relative with the ground connection block be provided with one with the corresponding oblong aperture of ground connection block profile; Said ground connection block connects ground connection row in the cabinet, and ground connection row links to each other with transformer station total earth connection in the cabinet.
CN 201120217074 2011-06-23 2011-06-23 Locking device for overhaul Expired - Lifetime CN202150379U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120217074 CN202150379U (en) 2011-06-23 2011-06-23 Locking device for overhaul

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120217074 CN202150379U (en) 2011-06-23 2011-06-23 Locking device for overhaul

Publications (1)

Publication Number Publication Date
CN202150379U true CN202150379U (en) 2012-02-22

Family

ID=45591431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120217074 Expired - Lifetime CN202150379U (en) 2011-06-23 2011-06-23 Locking device for overhaul

Country Status (1)

Country Link
CN (1) CN202150379U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111463058A (en) * 2020-04-17 2020-07-28 华翔翔能科技股份有限公司 Interlocking device of insulating cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111463058A (en) * 2020-04-17 2020-07-28 华翔翔能科技股份有限公司 Interlocking device of insulating cabinet

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20120222

CX01 Expiry of patent term