CN1093329C

CN1093329C - Interlocking plug-in box for bus bar

Info

Publication number: CN1093329C
Application number: CN 99124181
Authority: CN
Inventors: 沈跃平
Original assignee: JINGCHENG COMPLETE SET FACTORY OF ELECTRIC APPLIANCES SHANGHAI
Current assignee: JINGCHENG COMPLETE SET FACTORY OF ELECTRIC APPLIANCES SHANGHAI
Priority date: 1999-11-30
Filing date: 1999-11-30
Publication date: 2002-10-23
Anticipated expiration: 2019-11-30
Also published as: CN1254974A

Abstract

The present invention relates to a bus bar groove plugging switch box. A mechanical interlocking chamber is added at the front end of an electric apparatus chamber of the existing plugging box, the interlocking chamber is composed of a transmission rod 5, a movable arm 4, a jaw moving device 2 and a push block push-out device 1, wherein a handle 21 drives the transmission rod to rotate. Crank handle link mechanisms 22 and 23 drive a load switch handle 11 in the electric apparatus chamber to a switching-off state, the transmission rod simultaneously drives the movable arm to downward move to open jaw in the jaw moving device, and the movable arm downward moves to push out a push block 18 in the push block push-out device. Therefore, the three steps of the separation of the plugging box and a bus bar groove can be completed in one time. The present invention has the advantage of safe and simple operation.

Description

Interlocking plug-in box for bus bar

The present invention relates to a kind of bus duct jack switch case.

Bus duct is mainly used in confession, the distribution system of large public building, high-rise building, and the jack switch case is that the electric energy of bus duct power supply-distribution system is drawn the unit, it be by jack box bus socket pin with realize tight connection of bus duct copper bar.Because conductive contact does not have special arc-control device, when jack box takes off from bus duct, must operate in order, at first separately with the on-load switch in the jack box, i.e. the contact of cut-out and load; Next unclamps the mechanical connection between jack box and the bus duct, grasps the jack box handle at last and firmly extracts, if the plug of out-of-sequence operation bringing onto load will cause the electrical arc erosion contact and personal injury takes place.China Patent No. 96218406.3 discloses a kind of link-type bus duct jack switch case, this switch-box is equipped with mechanical device, mechanical device mainly comprises guide rod; rocking arm and handgrip; guide rod one end is equipped with dials plate control on-load switch, and the guide rod other end is equipped with rocking arm, and rocking arm links to each other with handgrip by balance staff; be provided with plate on cover wall, and the manipulating handgrip may command is dialled plate and then control on-load switch.When group plate was in " closing " position, the hyoplastron plug-in card of dialling plate was in plate, and case lid can not be opened, and can guarantee safety operation.The shortcoming of this device is a complicated in mechanical structure, and inconvenience is installed in the case, gives to use and maintenance brings certain difficulty.

The object of the present invention is to provide a kind of interlocking plug-in box for bus bar, this jack box can guarantee the grafting handling safety, simple of bus duct, and processes easy to maintenance.

The present invention is achieved in that the electric apparatus room casing front end at existing busway inserting case increases the mechanical interlocking chamber, this interlocking chamber is by drive link, swing arm, claw mobile device and jacking block liftout attachment are formed, drive link one end stretches out interlocking, and chamber is external links to each other with handle, drive link is near interlocking chamber body inwall place connecting crank linkage, connecting rod can move along the chute that is fixed on the electric apparatus room cabinet wall in the crank connecting link machine bar, driving lever is housed on the connecting rod, driving lever promotes on-load switch plate handle, the other end of drive link connects swing arm, the swing arm head moves down opens the claw mobile device, the swing arm head moves down and then promotes the jacking block liftout attachment jacking block is released, thereby jack box is pushed away bus duct.

In above-mentioned interlocking plug-in box for bus bar, described swing arm comprises swing arm head and afterbody, and head is a hook-like, and a cylindrical piece is equipped with on nearly hook top, and afterbody links to each other with drive link, and swing arm is positioned at middle part, interlocking chamber.

In above-mentioned interlocking plug-in box for bus bar, described claw mobile device comprises a pair of claw, an a pair of back-moving spring and a pair roller, claw is L type bar, and an end of L type bar is a hook, and the other end is equipped with a roller, the flex point of claw is supported on the frame, a back-moving spring is equipped with at the nearly middle part of hook end bar, and back-moving spring two ends connect claw and support frame respectively, and the hook end bar of claw stretches out the bottom of interlocking chamber body.

In above-mentioned interlocking plug-in box for bus bar, described jacking block liftout attachment is arranged in the claw end bar below that the claw mobile device is equipped with roller, the jacking block liftout attachment comprises briquetting, spring, push rod and jacking block, briquetting pressing spring and push rod, push rod is with spring outward, and push rod passes interlocking chamber body bottom and links to each other with jacking block outside casing.

The present invention has utilized the structure of existing busway inserting case, increased the interlocking chamber and with the on-load switch handle in the toggle control jack box, realized the safety operation that busway inserting case separates with bus duct, promptly at first cut off getting in touch of bus duct and load, unclamp the mechanical connection between jack box and bus duct again, at last jack box and bus duct are separated, these three steps are once finished by the external handle of jack box, guaranteed the fail safe of busway inserting case and bus duct lock out operation, and it is simple to operate, convenient, the installation and processing of component of machine is convenient, reliably, cost is lower.

Provide embodiments of the invention below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of interlocking plug-in box for bus bar of the present invention, and Fig. 2 is a mechanical interlocking cell structure schematic diagram, and Fig. 3 is a mechanical interlocking chamber schematic top plan view, and Fig. 4 looks schematic diagram for the left side of Fig. 2.

Referring to Fig. 1, Fig. 3, interlocking plug-in box for bus bar comprises casing 24 and case lid, casing 24 is made up of electric apparatus room 26 and mechanical interlocking chamber 25, electric apparatus room 26 is identical with existing busway inserting case, it comprises pin 7, on-load switch and the switch handle of being separated by cleat insulator 6 11, pin 7 one ends are positioned at casing 24 and connect on-load switch, and the other end stretches out the external bus in casing 24 bottoms.A cover mechanical interlocks is equipped with in mechanical interlocking chamber 25, it is driven by casing 24 outer handles 21, and dead man 10 moves in

crank linkage

22,23 promotion electric apparatus rooms 26, drive on-load switch handle 11 cut-off switch, thereby realize the safe separating of jack box and bus duct.Mechanical interlocking chamber 25 is positioned at electric apparatus room 26 front ends, it is by drive link 5, swing arm 4, claw mobile device 2 and jacking block liftout attachment 1 are formed, drive link 5 one ends stretch out outside the interlocking chamber body 25 and link to each other with handle 21, drive link 5 is near interlocking chamber 25 cabinet wall place connecting

crank linkages

22,23, connecting rod 23 can move forward and backward along the chute 9 that is fixed on electric apparatus room 26 cabinet walls in the toggle, dead man 10 is housed on the connecting rod 23, dead man 10 promotes on-load switch handle 11 cut-off switch, the other end of drive link 5 connects swing arm 4, swing arm 4 heads move down opens claw mobile device 2, swing arm 4 heads move down and then promote jacking block liftout attachment 1 with jacking block 18 releases, thereby jack box is pushed away bus duct.

Referring to Fig. 2, Fig. 3, Fig. 4, swing arm 4 comprises swing arm head and afterbody, and the swing arm head is a hook-like, a cylindrical piece 12 is equipped with on nearly hook top, and swing arm afterbody 4 links to each other with drive link 5, is supported on the frame 3, and pin with pin 20, swing arm 4 is positioned at interlocking 25 middle parts, chamber.The claw mobile device comprises a pair of claw 19, an a pair of back-moving spring 27 and a pair roller 13, claw 19 is L type bar, one end of L type bar is a hook, the other end is equipped with roller 13, and the flex point that claw 19 is L type bar is supported on the frame 3, and a back-moving spring 27 is equipped with at the nearly middle part of hook end bar, back-moving spring 27 2 ends connect claw 19 and frame 3 respectively, and the hook end bar of claw 19 stretches out the bottom of interlocking chamber 25 casings.3 of frames fuse on support 15 and with support 15, and support 15 is fixed in interlocking chamber 25 bottom halves.Jacking block liftout attachment 1 is arranged in the claw end bar below that claw mobile device 2 is equipped with roller 13, jacking block liftout attachment 1 comprises jacking block 14, spring 16, push rod 17 and jacking block 18, briquetting 14 pressing springs 16 and push rod 17, the push rod 17 outer springs 16 that are with, spring 16 other ends are pressed on the support 15, push rod 17 passes interlocking chamber 25 bottom halves and links to each other with jacking block 18 outside casing, and push rod 17 moves down, jacking block 18 corresponding moving down.

This jack box under charged operating state, electric apparatus room 26 normal out-put supplies, the on-load switch plate is in closure state to 11.When will be with this jack box when bus duct takes off, no matter be at "on" position or no power state, if turning handle is not to " opening " state, then jack box be got to be got off; Turning handle is to " opening " state, at this moment corresponding handle 21 drives drive link 5, drive link 5 drives toggle 22, dead man 10 on 23 promotes on-load switch handle 11 to off-state, drive link 5 drives swing arm 4 simultaneously and moves down through roller 13 a pair of claw 19 is removed, at this moment claw 19 is no longer embraced bus duct, swing arm 4 moves down then swing arm 4 heads again and pushes down jacking block liftout attachment 1 jacking block 18 is released, thereby this jack box and bus duct are separated, realized at first getting in touch of disconnecting consumers and bus duct, i.e. outage, unclamp the mechanical connection of jack box and bus duct again, such three one step completed actions of step at last are separated jack box and bus duct, guarantee the fail safe of operation, and simple to operate, convenient.

Interlocking plug-in box for bus bar of the present invention can guarantee the handling safety that jack box and bus duct are separated, and simple, convenient again, laborsaving, cost is lower, is easy to promotion and implementation.

Claims

1. interlocking plug-in box for bus bar, this jack box comprises casing and case lid, in casing, be equipped with and separate by cleat insulator, the pin of connection bus and on-load switch, it is characterized in that the electric apparatus room front end in this casing also is provided with the mechanical interlocking chamber, this interlocking chamber is by drive link, swing arm, claw mobile device and jacking block liftout attachment are formed, drive link one end stretches out interlocking, and chamber is external links to each other with handle, drive link is near interlocking chamber body inwall place connecting crank linkage, connecting rod can move along the chute that is fixed on the electric apparatus room cabinet wall in the toggle, driving lever is housed on the connecting rod, driving lever promotes the on-load switch handle, the other end of drive link connects swing arm, the swing arm head moves down opens the claw mobile device, the swing arm head moves down and then promotes the jacking block liftout attachment jacking block is released, thereby jack box is pushed away bus duct, the claw mobile device comprises a pair of claw, an a pair of back-moving spring and a pair roller, claw is L type bar, one end of L type bar is a hook, the other end is equipped with roller, the flex point of claw is supported on the frame, a back-moving spring is equipped with at the nearly middle part of hook end bar, back-moving spring two ends connect claw and frame respectively, and the hook end bar of claw stretches out the bottom of interlocking chamber body.

2. interlocking plug-in box for bus bar according to claim 1 is characterized in that described swing arm comprises swing arm head and afterbody, and head is a hook-like, and a cylindrical piece is equipped with on nearly hook top, and afterbody links to each other with drive link, and swing arm is positioned at middle part, interlocking chamber.

3. interlocking plug-in box for bus bar according to claim 1 and 2, it is characterized in that described jacking block liftout attachment is arranged in the claw end bar below that the claw mobile device is equipped with roller, the jacking block liftout attachment comprises briquetting, spring, push rod and jacking block, briquetting pressing spring and push rod, push rod is with spring outward, and push rod passes interlocking chamber body bottom and links to each other with jacking block outside casing.