CN1205638C

CN1205638C - Switching device with tripped position of latching mechanism

Info

Publication number: CN1205638C
Application number: CN 98801334
Authority: CN
Inventors: 弗兰克·弗莱德尔; 乔治·韦德纳
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 1997-02-03
Filing date: 1998-01-21
Publication date: 2005-06-08
Anticipated expiration: 2018-01-21
Also published as: EP0956576B1; WO1998034256A3; CN1369103A; WO1998034256A2; JP2001513249A; EP0956576A2; DE19703959C1

Abstract

In accordance with the invention, the latching mechanism (1) of the switching device is fitted with a blocking device (10) having a blocking head (11), which is provided both with sliding surfaces (12) and blocking surfaces (13), so that a ratchet (7) is guided along the sliding surfaces (12) upon release and is retained by the blocking surfaces (13) when it swings back.

Description

The switchgear and the mode of operation thereof that have switch lock

Technical field

The present invention relates to a kind of switchgear that has switch lock, this switch lock has a switch lever, one claw and a pawl type lever as the claw bearing, this claw when threading off around its supporting axis rotation and release-push bar handling the contact, this switchgear also has a handle that effectively is connected with switch lock.The invention still further relates to a kind of mode of operation that has the switchgear of switch lock.

Background technology

The switchgear of the above-mentioned type has obtained application in how tame electrified enterprise.

A kind of known switch lock that is in the power switch of on-state shown in Fig. 4 of present specification.This switch lock is in connection status 1 this moment, and all main contactss of power switch only illustrate a main contacts 3 in the drawings.Only when switch lock 1 is threaded off, switch lever 2 just acts on the rocking bar that a slide block and is coupled with it, can disconnect main contacts 3 by this rocking bar.This switch spindle 2 also acts on the contact jumper bearing 4 of an auxiliary switch HS who is connected simultaneously.This switch lock 1 is main by a lever system that has one handle 5, and a claw 6 and a dropout lever 7 are formed.On-position shown in the figure is because the position of handle 5 determines.Claw 6 can move on the desired location in chute by a bar 8 that links to each other with handle 5.The position of 6 pairs of switch levers 2 of claw is influential, and switch lever determines the on off state of above-mentioned main contact 3 and auxiliary contact 9.The moment of torsion that is caused by spring 10 moves switch spindle 2 when handle 5 is transferred to open position, main contact is disconnected and interrupts effect to the contact jumper bearing 4 of auxiliary switch HS.Bar 8 and handle 5 constitute a knee formula joint together.This handle 5 is fixed supported levers, and it for example can be designed to down the form of bar or rocking bar.

When adopting a kind of like this power switch with rotating actuator, when switch lock was threaded off by an overcurrent trigger or voltage trigger, the operator should know.Shown in the accompanying

drawing

5,6 and 7 of present specification, handle remains on when it is in trip status between on-position and the open position, thereby known.This centre position that is called the dropout position can be seen in Fig. 6.In Fig. 5 and Fig. 7, then can see open position and on-position.

The structural principle of known already realization dropout position is from Fig. 8 of present specification, in 9 and 10 as can be known.This technical solution is by two stage clips, and a slide block and a lever are realized.When threading off, not shown claw is deviate from (durchschwingen) and is handled by the lever of stage clip pretension, makes one to utilize the slide block of another stage clip pretension to thread off.This slide block is to advancing slip, and then stops the counter-rotating of a phase selective gear that belongs to this rotating actuator.Just the stage clip of this slide block overcomes the effect of the torsion spring in the profile of tooth rocking bar, thereby prevents counter-rotating.When resetting to open position by handle, slide block is pushed back, and the stage clip of its back is compacted again.Meanwhile, not shown claw is engaged on again on the pawl type lever, and switch is switched on again.

Has a switch lock by the disclosed a kind of power switch of DE 9206 137U1 as type as described in the preface, this switch lock has a switch lever equally, one claw and a claw lever as the claw bearing, this claw rotates around its supporting axis when threading off, and then the release-push bar is to handle the contact.The handle of power switch effectively is connected with switch lock.From DE 9206137U1, but have no way of learning to the dropout of operator's indicator cock lock by a dropout position.

Summary of the invention

The technical problem to be solved in the present invention is, in easy mode, that is to realize the dropout position in cheap expense and the less switchgear that is dropped in the above-mentioned type.

Above-mentioned technical problem solves by a kind of like this switchgear that has switch lock, this switch lock has a switch lever, one claw and a pawl type lever as the claw bearing, this claw when threading off around its supporting axis rotation and release-push bar to handle the contact, this switchgear also has a handle that effectively is connected with switch lock, according to the present invention, one blocking mechanism is set in switch lock, this blocking mechanism is designed to have the spring arm form of a locking head, the first side of this locking has the sliding surface opposite side and has the locking face, the claw of its permission dropout when threading off is deviate from and claw is slided along sliding surface when deviating from, and when backswing, fixed by the locking face, stop the backswing of claw thus and be fixed on certain position, handle this moment since its effectively connection be maintained on the open position and the centre position between the on-position of switchgear.Thereby the operator knows whether there is the dropout phenomenon.

Operate as follows according to above-mentioned switchgear of the present invention, that is, and after dropout, handle must be to disconnecting the direction operation, and claw connects owing to effective this moment, before switchgear transfers on-state to, drawn from the locking head of blocking mechanism next door and to be dragged over, and be engaged on the pawl type lever.

Description of drawings

By accompanying drawing the embodiment of the invention is described in further detail below, in the accompanying drawing:

Fig. 1 illustrates the switch lock that is in on-state;

Fig. 2 illustrates the switch lock that is in trip status;

Fig. 3 illustrates a blocking mechanism in switch lock and links to each other with a claw;

Fig. 4 illustrates a kind of known switch lock that is in the power switch of on-state;

Fig. 5-7 illustrate respectively the handle that effectively is connected with the switch lock of power switch shown in Figure 4 be in open position respectively, as the centre position of dropout position and the situation on the on-position;

Fig. 8-10 illustrates the structural principle of known already realization dropout position.

Embodiment

Fig. 1 illustrates the switch lock of the switchgear with rotating actuator.This rotating actuator only illustrates a phase selective gear in the drawings, and it constitutes a knee formula joint with a U-shaped shelf 3.Move in a chute 4 of switch slab 5 in this knee formula joint.Other parts that are fixed on the switch lock 1 on the switch slab 5 have: a pawl type lever 6, one claws 7, one switch levers 8, disconnect a spring 9 and a blocking mechanism 10.Switch lock shown in the figure 1 is in on-state, and this moment, claw 7 was engaged on the pawl type lever 6 of bearing effect.The disconnection spring 9 that acts on the switch spindle 8 passes through rotating actuator, that is by the pre-tensionings of phase selective gear 2 quilts.Pawl type lever 6 rotates around its supporting axis when dropout is operated, like this claw 7 just from the pawl type lever 6 slippage also thereunder wind supporting axis 17 rotations that the supporting leg by U-shaped shelf 3 forms.The blocking mechanism 10 that is arranged on pawl type lever 6 belows has a locking head 11, and the first side of this locking has sliding surface 12, and opposite side has locking face 13, makes claw 7 slide along sliding surface 12 when deviating from, and is locked by locking face 13 when backswing.When the claw 7 of threading off was deviate from by direction shown in the arrow 14, this motion was subjected to any obstruction of locking head 11 hardly.Yet the backswing of claw 7 but is subjected to very strong obstruction, makes claw 7 be fixed on a certain position before being engaged again.Until the driving member chain of unshowned handle is by 2 stop motions of phase selective gear and stop on the what is called " dropout position (Tripped-Stellung) " between on-position shown in Figure 2 and the open position.Except the parts of having described, in Fig. 2, also show the handle of the rotating actuator that is designed to knob 15 in addition.Claw is stopped by the locking face 13 of locking head 11 for 7 this moments.

If knob 15 is to disconnecting the direction rotation, then claw 7 is subjected at first to be pulled through from locking head 11 next doors by the effect of knee formula joint institute transmit force, is pulled to the below of pawl type lever 6 subsequently, is engaged on again on the pawl type lever 6 until claw.Only after realizing such engagement, switchgear just can be switched on, and disconnects spring 9 (see figure 1)s this moment by pre-tensioning, and then is the essential energy of storage of threading off.

Knob 15 can not because claw 7 is not engaged as yet in the case, thereby still lack the bearing that pre-tensioning disconnects spring 9 usefulness from the dropout position rapidly to connecting the direction rotation.Switchgear can not connected in this case.

Fig. 3 illustrates the blocking mechanism 10 with a spring arm 16 and a locking head 11.This locking head has the sliding surface 12 and the locking face 13 of optimized design, and they stop it on the one hand hardly when the claw 7 that had illustrated is already deviate from, fix it again on the other hand when its backswing.

Although the present invention is had been described in detail by form of implementation shown in the accompanying drawing, but should consider this be not intentionally the present invention only is confined to shown in form of implementation, and should comprise the possible variation that covered of promising claims content, revise and the equivalence design.

Claims

1. switchgear that has switch lock (1), this switch lock has a switch lever (8), one claw (7) and a pawl type lever (6) as claw (7) bearing, this claw when threading off around its supporting axis (17) rotation and release-push bar (8) to handle the contact, this switchgear also has a handle (15) that effectively is connected with switch lock (1), it is characterized in that, one blocking mechanism (10) is set in switch lock (1), this blocking mechanism (10) is designed to have spring arm (16) form of a locking head (11), the first side of this locking has sliding surface (12) opposite side and has locking face (13), the claw (7) of its permission dropout when threading off is deviate from and claw (7) is slided along sliding surface (12) when deviating from, and when backswing, fixed by locking face (13), stop the backswing of claw (7) thus and be fixed on certain position, handle this moment since its effectively connection be maintained on the open position and the centre position between the on-position of switchgear.

2. mode of operation that is used for switchgear as claimed in claim 1, it is characterized in that, after dropout, handle (15) must be to disconnecting the direction operation, claw (7) is at this moment because its effective connection, before switchgear transfers on-state to, drawn from the locking head (11) of blocking mechanism (10) next door and to drag over and be engaged on the pawl type lever (6).