CN2091498U

CN2091498U - Multi-functional safety ground rod

Info

Publication number: CN2091498U
Application number: CN 91207805
Authority: CN
Inventors: 薛宝明
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-16
Filing date: 1991-05-16
Publication date: 1991-12-25

Abstract

The utility model relates to a tool for the operation of power cut and power transmission with high voltage, particularly a multifunctional safety ground rod which is characterized in that an open-close valve head, a ground sealed joint and an insulating main body rod form a split composite joint structure; an interlock key is added on the main body rod for controlling a safety interlock between a ground wire and a switching device; the multifunctional safety ground rod integrates the functions of the open-close valve, electricity checking and ground sealing and hanging, and has the advantage that the removable composite structure strictly intensifies the operating program of power cut and power transmission with high voltage; the error operation accident can be avoided, and the safety can be ensured; the multifunctional safety ground rod has simple structure, low cost, and easy manufacture.

Description

Multi-functional safety ground rod

The utility model belongs to a kind of high pressure and stops instrument in (sending) electricity operation, and particularly a kind of Ji Lahezha, electrical verification and envelope articulate the earth rod of multiple function such as ground for the whole body.

Relate in the operation that high pressure stops sending electricity at present and formed abundant working experience and strict management system in China, as existing operation order system, but because existing brake pull-rod, it all is single instrument that electroscope and envelope articulate the ground instrument, so in operation sequence, be difficult to exempt from absolutely to stop the error that operation with high pressure stops sending electricity, promptly occur repeatedly as the operate miss accident of sealing hanging earthing conductor and being with ground wire to close the high pressure lock with high-tension electricity, make electricity consumption enterprise and power supply department suffer serious economy loss, also can cause casualties simultaneously, therefore solve the safety problem for (usefulness) electricity, making each electrical engineering personnel and operating personnel can safe and punctual operation be that high pressure stops sending important problems in the electricity work.

The purpose of this utility model is to provide a kind of instrument that high pressure stops the operation of (sending) electricity that is used for, particularly a kind of multifunctional protecting earth rod, it is with the drawing restrictor bar, electroscope, the stopping of multiple splits such as feud joint sent electric operation tool to be integrated and set up buzzer siren and interlock, the operation order system has been strengthened in the use of this instrument, and stopping sending electricity for safety provides assurance.

The technical solution of the utility model: a kind of multifunctional protecting earth rod, it is by the main body bar that has electroscope indicator light, buzzer, drawing lock head, feud joint and interlocking key are formed, said main body bar is that the insulating rod end in the more piece thread connection installs additional the electroscope indicator light is installed on buzzer, the buzzer, and topmost head has special connection external screw thread, and there is the cylindricality circular hole that can insert interlocking key at end center, top, special internal thread is arranged in the hole, and the more piece insulating rod also is according to thread connection; Said drawing lock head is original brake pull-rod and removes the head that bar portion stays, and with former bar portion connection place the special internal thread that connects is arranged in its lower end; Said feud joint is original envelope and articulates the ground action bars and remove the duck that bar portion stays and chew the shape head, with former bar portion connection place the special internal thread that connects is also arranged in its lower end, the special major diameter of external thread of above-mentioned said main body boom end can screw in identical with the special internal diameter that connects the special connection internal thread of internal diameter and joint lower end, feud of internal thread in drawing lock head lower end mutually; Said interlocking key is constituted by having special externally threaded cylindricality metal the shank of the key with the supporting metal key head and of a lock, the bottom diameter of the cylindricality circular hole at the major diameter of thread of above-mentioned cylindricality the shank of the key and center, main body rod end top can screw in mutually, this excellent electroscope contact is the key bit that inserts the main body bar, electroscope indicator light and the shank of the key are for contacting connection, drawing lock head can be connected with the main body bar according to different needs during use, also the feud joint can be connected with the main body bar, and then form different functions of use.More matching used annexes are still arranged is relevant locking device with this multifunctional protecting earth rod interlocking key: 1, envelope hang be equipped with on the certain position with the earth connection middle part with the switch cubicle mains switch corresponding a pair of interlocking nose, and have one and the matching used lock of interlocking key can pass this to the nose of interlocking; The earth terminal that 2 envelopes are hung with earth connection has trapezoidal tabular joint termination with holes in the middle of to reach the ground connection fixing point end clamping fastener that is installed in switch cubicle earth electrode fixing point both sides that matches and use with this ground connection termination, the fixing back of this securing member form one to the similar trapezoidal slotting crack of shape of trapezoidal tabular ground connection termination, make the ground connection termination insert afterwards and form " falling to strain " effect from lower end, trapezoidal slotting crack, the interstitial hole and the earth electrode fixing point of ground connection end plate just align simultaneously, and by a trip bolt two holes are tightened.

Using method of the present utility model: 1, use during power failure: at first drawing lock head and main body bar are joined, pull off the switch of registering one's residence with the brake pull-rod that combines, afterwards, drawing lock head is pulled down, with the key bit electrical verification on the main body bar, clear and definite not charged after, the high-tension switch cabinet lock is left behind, and the interlocking nose and the switch cubicle mains switch in earth connection stage casing are pinned last interlocking nose with lock, ground connection termination on the earth connection is inserted in the earth electrode fixing point end clamping fastener simultaneously and fix with trip bolt, the feud joint is installed on the main body bar this moment, and interlocking key is placed " duck chews " abdomen of feud joint, seal at last hanging earthing conductor (need only in ground connection envelope hanging wire three-phase use the utility model earth rod mutually, the still available original envelope of other two-phases is hung action bars) then power failure work finish.The operation of the structures shape of this kind earth rod has avoided the accident of charged envelope hanging ground-wire to take place.Use when 2, sending electricity: the three-phase of dismantling earlier envelope is hung action bars, and the feud joint (duck chews) of earth rod of the present utility model is pulled down, get key unlocking, remove the ground connection termination afterwards, drawing lock head combined floodgate is installed at last to be sent, the structure of this brake pull-rod has also determined not return the safety operation program that grounding wire device promptly can not close a floodgate in the operation, and the accident of having avoided the band ground wire to close the high pressure lock takes place.

Superiority of the present utility model: 1, this earth rod Ji Lahezha, electrical verification, envelope articulate high pressure such as ground and stop sending electric outfit for all over the body, and its removable combining structure strictness has been strengthened high pressure and has been stopped sending electric operation sequence, thereby stopped the generation of operate miss accident, guaranteed safety, further perfect original electricity deficiency of system of calling out the names of those voted for while counting ballot-slips of stopping sending; 2, this earth rod is simple in structure, with low cost, is easy to manufacture, and is convenient to promote.

Further specify present technique below in conjunction with drawings and Examples of the present utility model.

Accompanying drawing one is the utility model overall structure schematic diagram, wherein:

(a) for being with the main body bar of electroscope and buzzer;

(b) for the drawing lock head of split;

(c) for the feud joint of split;

(d) be the split figure of interlocking key.

1 is the main body bar shown in the figure, and 2 are the electrical verification indicator light, and 3 is buzzer, and 4 is interlocking key, 5 is special connection external screw thread, and 6 are drawing lock head, and 7 is special connection internal thread, 8 is the feud joint, and 18 is the special external screw thread of interlocking key, and 17 is the special internal thread of interlocking key.

Accompanying drawing two uses schematic diagram for the utility model.Wherein:

A, B, C are three phase mains, and 9 are three-phase envelope hanging point, and 10 is mains switch, and 11 are lock, 12 is the earth electrode fixing point, and 13 is earth electrode fixing point end clamping fastener, and 14 is the ground connection termination, and 15 is trip bolt, 16 is earth connection, and 19 are ground wire interlocking nose, and 20 is that mains switch is last interlocking nose.

Related accessory structure schematic diagram when accompanying drawing three uses for the utility model.Wherein:

12 is the earth electrode fixing point, and 13 is earth electrode fixing point end clamping fastener, and 14 is the ground connection termination.

Embodiment: a kind of multifunctional protecting earth rod, it is by having electrical verification indicator light 2, the main body bar 1 of buzzer 3, drawing lock head 6, feud joint 8 and interlocking key 4 are formed, said main body bar is that the insulating rod end in the more piece thread connection installs buzzer 3 additional, electrical verification indicator light 2 is installed on the buzzer, topmost head has special connection external screw thread 5, and there is the cylindricality circular hole that can insert interlocking key at end center, top, special internal thread 17 is arranged in the hole, said drawing lock head has the special internal thread 7 that connects with main body bar union end, the feud joint also has the same special internal thread 7 that connects with main body bar union end, external screw thread 5 can screw in internal thread 7 and match, interlocking key 4 has a cylindricality the shank of the key, and there is special external screw thread 18 can screw in identical on the handle with internal thread 17, and the shank of the key and electrical verification indicator light are for contacting connection, galvanoscopic contact is the key bit 4 that inserts the main body bar on this main body bar, drawing lock head and feud joint can be formed different functions of use with the connection of main body bar respectively according to different needs during use.With the matching used interlock of the interlocking key on the main body bar lock 11 supporting with key arranged, reach the mains switch of switch cubicle on earth connection 16 stage casings that padlock is used the 10 a pair of interlocking noses 19 and 20 that are provided with, ground connection termination 14, switch cubicle earth electrode fixing point end clamping fastener 13 and ground connection termination 14 inserted fixing point end clamping fasteners 13 after, hole on the ground connection termination and earth electrode fixing point 12 are tightened according to trip bolt 15.

Claims

1, a kind of high pressure that is used for stops the instrument that (sending) electricity is operated, particularly a kind of multifunctional protecting earth rod, it comprises drawing lock head, feud joint, electroscope indicator light, buzzer and insulating body bar, be characterised in that to be split combination draw bail between said drawing lock head, feud joint and main body bar, and main body masthead end is provided with a removable interlocking key; Said main body bar is that the insulating rod by the more piece thread connection constitutes, and on the barred body buzzer and electroscope indicator light is installed topmost, and this saves excellent termination special connection external screw thread, and there is the cylindricality circular hole at end center, top, and special internal thread is arranged in the hole; Said interlocking key is to be made of key bit and cylindricality the shank of the key, and special external screw thread is arranged on the cylindricality the shank of the key, and can screw in identical with the special internal thread in the cylindricality circular hole of center, main body rod end top; Said drawing lock head has the special internal thread that connects with main body bar union end, the feud joint also has the same special internal thread that connects with main body bar union end, can be between main body bar and drawing lock head and main body bar and feud joint respectively according to thread connection, promptly major diameter of external thread and drawing lock head and feud joint minor diameter of internal thread are to be to screw in identical shape on the main body bar; Main body bar electroscope indicator light is connected for contact with the shank of the key.

2, the matching used interlock of said interlocking key in a kind of and the claim 1, comprise the lock supporting with key, be characterised in that on the earth connection stage casing of padlock and the mains switch of switch cubicle being provided with a pair of interlocking nose, have between earth connection termination and high-tension switch cabinet earth electrode fixing point and prevent the fastener that comes off, this device can be formed by a middle trapezoidal tabular ground connection termination with holes and with the earth electrode fixing point end clamping fastener that is installed in switch cubicle earth electrode fixing point both sides that this termination is used, the end clamping fastener is similar to the shape of ground connection termination, one trapezoidal slotting crack also can be arranged, after trapezoidal plate inserts trapezoidal slotting crack, connect according to a trip bolt between two holes of hole and earth electrode fixing point on the trapezoidal plate.