CN1755864A

CN1755864A - Handle device of circuit breaker

Info

Publication number: CN1755864A
Application number: CN 200510105630
Authority: CN
Inventors: 江村武史; 永广勇; 清水源广
Original assignee: Fuji Electric FA Components and Systems Co Ltd
Priority date: 2004-09-28
Filing date: 2005-09-28
Publication date: 2006-04-05
Anticipated expiration: 2025-09-28
Also published as: JP2006100028A; CN1755864B

Abstract

The invention provides a handle lever device. In the meantime the use of the handle lever locking function of a padlock is guaranteed, even in the unlocking state of not hanging the padlock, a protective measure can be implemented so as to ensure that a body or an object is not contacted with the handle lever incautiously, and the breaker does not generate a wrong action. The handle lever device is taken as an external auxiliary device of a circuit breaker to close and open the breaker. A mounting base plate (3) of the handle lever is matched with a handle (4) of a rotatable handle lever and the handle is provided with an extraction type lockplate (4a) corresponding to the padlock locking way; wherein, besides the extraction area of the lockplate corresponding to the locking positions (ON and OFF) of the handle lever, the mounting base plate is provided with a guardrail (8) with a height H greater than the height h of the handle in a way of wrapping the handle to protect; even in the particle use state of the circuit breaker without hanging a padlock, the switching of the handle lever can be prevented by the body or an object being contacted with the handle lever incautiously.

Description

The handle apparatus of circuit-breaker

Technical field

The present invention is object with distribution with circuit-breaker etc., and it relates to handle apparatus that this circuit-breaker has or as the external attached device of circuit-breaker and be installed in the outer handle device that carries out opening and closing operations on the breaker body.

Background technology

Above-mentioned distribution has the handle that the main circuit contact is carried out opening and closing operations with circuit-breaker, is divided into rocker-type handle (upright obforms) and rotary-type handle according to different action types.In addition, external attached device as circuit-breaker, known have a kind ofly by manually carrying out the external operation handle device of opening and closing operations from the dish of distribution board, control panel etc. is external to being configured in circuit-breaker in the dish, and what Fig. 5 represented is an example (with reference to patent documentation 1) of its prior art.

At Fig. 5 (a) and (b), the 1st, have the circuit-breaker of rocker-type handle; The 2nd, be assembled in the external operation handle device on the circuit-breaker 1 as the external attached device; The 3rd, at the pedestal of this handle apparatus; 4 are arranged on the rotary-type handle of the front of pedestal 3; The 5th, be used for handle 4 is locked on ON (opening) or OFF (closing) position and the padlock of hanging, the handle 4 of handle is configured in the recess of the installation base plate 3a that becomes cylindric portion of front portion one side that is formed at pedestal 3, and be connected with the actuating arm 6 that is assembled in pedestal 3 the insides one side via cam mechanism, as shown in the figure, under handle apparatus 2 was assembled into state on the circuit-breaker 1, above-mentioned actuating arm 6 was connected with the rocker-type handle 1a of circuit-breaker 1.Wherein, the rotary manipulation scope of handle 4 mechanically is limited in the scope between ON position and the OFF position.

For said external operating grip device 2, above-mentioned handle 4 is installed on the circuit-breaker 1 that is equipped in the dish towards the outstanding mode in the place ahead of the card plate 7 of distribution board etc., under this state, by manually handle 4 being turned on ON, the OFF position and come drive rocker handle 1a, open and close the main circuit contact of circuit-breaker 1 with this via actuating arm 6.In addition, when the handle 1a with circuit-breaker 1 is locked on ON or the OFF position, as shown in the figure, the arm 5a of padlock 5 hung on the lockhole on the cylindrical wall that is opened in installation base plate 3a and to it locks, with this handle 4 that stops handle from ON to the OFF position or move to the ON position from OFF on the contrary.

In addition, locking mechanism as above-mentioned handle apparatus, known have a kind of rear portion at handle to be provided with the lockplate of pull-out type, latched position at handle hangs over padlock on the above-mentioned lockplate of extracting out from handle, so that handle lock is fixed on ON or the locational locking mechanism of OFF (for example with reference to patent documentation 2).

This handle lock mode also is widely used on the circuit-breaker with rotary-type handle shown in Figure 6 except external operation handle device.Promptly, the lockplate 4a of above-mentioned pull-out type is set being disposed at the rear portion of handle 4 that the circuit breaker box body covers the rotary-type handle of face, simultaneously, on tray cover, match and the retainer 1b of overshooting shape is set with the latched position of handle, in illustrated OFF position, extract lockplate 4a out towards the side of above-mentioned retainer 1b and stop handle 4 to move to the ON position, simultaneously, padlock is hung over lockplate 4a go up and be locked in the extraction position from OFF.

Wherein, handle lock mode for padlock; protection strategy when the inside of distribution board being carried out the maintenance of main circuit and checking operation as the operator; in order to prevent that circuit-breaker is locked under the OFF state or the situation of cutting off the power supply of load because of the faulty operation of handle takes place, and the mode that is locked in the ON state with circuit-breaker hangs over padlock on the handle of handle.But,, therefore,,, do not hanging padlock under the situation mostly and using the environment for use of frequent opening and closing operations circuit-breaker except in above-mentioned special circumstances because managerial problem of padlock and lock and unlock is loaded down with trivial details.

Patent documentation 1: Japanese patent laid-open 9-27262 number newspaper

Patent documentation 2: the Japan Patent spy opens the 2002-25411 communique

Summary of the invention

Handle apparatus for above-mentioned prior art formation, though can with the mode of hanging padlock with the handlebar locked of handle on ON or OFF position to prevent the faulty operation of handle, but, because of the loaded down with trivial details of the management of padlock and lock and unlock operation do not hung under the state that padlock just uses, in case object or human body contact with the handle of the handle apparatus of giving prominence to towards the place ahead of dish because of carelessness, then exist ON, the OFF position of handle to be switched and to make circuit-breaker to produce the danger of malfunction.

Therefore, the object of the present invention is to provide a kind of handle apparatus of circuit-breaker, when guaranteeing to use the handle lock function of padlock, even hang padlock at the end just under the environment for use, also can implement a kind of safeguard procedures, even make careless contact of people or object also can not make the circuit-breaker action that makes a mistake with the handle of handle.

To achieve these goals, the handle apparatus of circuit breaker in a circuit according to the invention, it is the handle apparatus that has of this circuit-breaker or as the external attached device of this circuit-breaker and the main circuit contact of circuit breaker is carried out the handle apparatus of opening and closing operations, wherein, on installation base plate, dispose the handle of rotary-type handle, above-mentioned handle has the lockplate with the corresponding pull-out type of padlock lock mode, and

Be provided with the guardrail higher outside on above-mentioned installation base plate than the height of described handle, its surround except with the extraction zone of the corresponding lockplate of latched position of above-mentioned handle handle around (first aspect).This guardrail specifically constitutes as follows.

(1) described guardrail is the wall body that resin is made, and fixes, blocks or press by screw to insert on installation base plate to fix this wall body (second aspect).

(2) guardrail in described (1) is made as transparent resin, even also can confirm the position of handle and the show label on the substrate by visual from the side on hurdle.

The effect of invention

According to above-mentioned formation, just compare to the structure of the outstanding prior art in outside at naked state with the handle of handle, by guardrail is set around handle, and reduce object or people connect or collided handle because of carelessness from the outside probability significantly, correspondingly improved the fail safe of handle with respect to unexpected faulty operation, malfunction.

In addition, for this guard rail, by at the extraction of the lockplate corresponding zone opening with the latched position of handle, and can be corresponding, and can be easy to show label on Visual Confirmation handle position and the substrate by making guardrail with transparent resin with the handle lock mode that padlock uses.And, but then be installed on the handle apparatus by making this guardrail make alternative pack, make the user freely to select to use and still do not use guardrail according to the environmental aspect that circuit-breaker is set.

Description of drawings

Fig. 1 is the pie graph that is applicable to the embodiment of the invention of external operation handle device.

Fig. 2 is a schematic diagram of extracting the state of lockplate in the handle position of Fig. 1 out.

Fig. 3 is the schematic diagram of installation constitution of the guardrail of Fig. 1, (a)～(b) respectively expression be the structural map of different embodiment.

Fig. 4 is the pie graph of the embodiment of the invention that is applicable to the rotary-type handle of circuit-breaker.

Fig. 5 is the pie graph of the external operation handle device of prior art, (a) is mounted in the stereoscopic figure of the state on the circuit-breaker, (b) is the end view of (a).

Fig. 6 is the stereoscopic figure that is equipped with the circuit-breaker of rotary-type handle.

Symbol description: 1 circuit-breaker, 2 external operation handle devices, 3 installation base plates, the handle of 4 rotary-type handles, 4a lockplate, 5 padlocks, 8 guardrails.

Embodiment

Below, based on Fig. 1～Fig. 3 and embodiment shown in Figure 4, embodiments of the present invention are described.Wherein, in the figure of embodiment, to the symbol identical with Fig. 6 corresponding components mark with Fig. 5.

What Fig. 1 represented is to be applicable to from the outside of distribution board to coil the embodiment that interior circuit-breaker carries out the external operation handle device of opening and closing operations by manually next to being assemblied in.In this embodiment, for the rotary-type handle 4 that is disposed at above the installation base plate 3, has lockplate 4a at the rear portion of handle with the corresponding pull-out type of above-mentioned padlock lock mode.In addition, along the edge of installation base plate 3 and be provided with the guardrail 8 of the wall body of making as transparent resin outside in the mode of surrounding this handle 4.

But this guardrail 8 is alternative packs, it has played following effects, promptly, under the actual user mode of circuit-breaker, can prevent because the careless handle 4 with the handle of giving prominence to towards panel the place ahead of distribution board of object or human body contacts and causes the position of handle to be switched, its height H is arranged to height h height than handle 4.In addition, in order to extract lockplate 4a out and to hang up padlock towards the outside of guardrail 8 in ON position or OFF position at handle, and make the part (the ON position of the handle 4 and scope between the OFF position) on every side of guardrail 8 become incompleteness as shown like that, as shown in Figure 2, OFF position (the ON position too) at handle, not extract lockplate 4a out from handle 4, then, padlock is hung on the lock hole 4b that is opened on this lockplate 4a with the mode of guardrail 8 interference.By such formation, when keeping simple and easy locking, under the ON state that can also prevent at handle towards from ON to the OFF direction of rotation, under the OFF state since the contact of OFF to the ON direction of rotation.Wherein, though diagram not also has a kind of mechanism on installation base plate 3, be used for when during from handle 4 extraction lockplate 4a, making handle be fixed on this position in ON or OFF position.

Secondly, Fig. 3 (a)～(d) expression is the installation constitution example of guardrail 8.At first, in Fig. 3 (a), on installation base plate 3, stacked guardrail 8, the front of tightening and being fixed on the card plate 7 that handle apparatus 2 is housed jointly by fixed screw 9.In Fig. 3 (b), on the wall body base portion of guardrail 8, be formed with the engaging claw 8a of overshooting shape, simultaneously, a side is formed with the stair-stepping joint ditch 3b that is used to hook above-mentioned engaging claw 8a on installation base plate 3, when guardrail 8 is installed, engaging claw 8a is entrenched in engage block in the ditch 3b end fixing.In addition, in the example of Fig. 3 (c), be formed with replace above-mentioned engaging claw be pressed into projection 8b, fix guardrail 8 by this is pressed in the ditch 3b that projection 8b is pressed into installation base plate 3.And in the example of Fig. 3 (d), guardrail 8 is flexibly rabbeted the periphery that is fixed on installation base plate 3 under the state of slight curvature.By adopting this fixed form, but the user can come the back that guardrail 8 as alternative pack is installed as required.

That then, Fig. 4 represents is the embodiment that is applicable to the above-mentioned guardrail in the circuit-breaker that attaches rotary-type handle.At this embodiment, the handle 4 of the subsidiary lockplate that is had with respect to circuit-breaker 1 is provided with the circular guardrail 8 that surrounds handle 4 and protects handle 4 on the lid (installation base plate of handle) of circuit breaker box body.This guardrail 8 is identical with the guardrail that passes through the described external operation handle device of Fig. 1～Fig. 3, becomes the wall body of making than handle 4 high transparent resins, and it is by fixed screw or hang the face that covers that claw stop is fixed on the circuit breaker box body.In addition, in illustrated embodiment, OFF position at circuit-breaker, padlock hangs over the lockplate 4a that extracts out from the handle 4 of handle and goes up and locked, a part forms notch 8c around guardrail 8 corresponding to this padlock lock mode, and the lockplate 4a by this notch 8c with handle 4 extracts out from the outside of guardrail.Therefore, identical with said external operating grip device, can prevent that object and human body from contacting the generation of the situation of handle because of carelessness under the actual user mode of circuit-breaker.

Claims

1. the handle apparatus of a circuit-breaker, it is the handle apparatus that has of this circuit-breaker or as the external attached device of this circuit-breaker and the main circuit contact of described circuit breaker is carried out the handle apparatus of opening and closing operations, wherein, on installation base plate, dispose the handle of rotary-type handle, described handle has the lockplate with the corresponding pull-out type of padlock lock mode, it is characterized in that:

Be provided with the guardrail higher outside on described installation base plate than the height of described handle, its surround except with the extraction zone of the corresponding lockplate of latched position of described handle handle around.

2. the handle apparatus of circuit-breaker as claimed in claim 1 is characterized in that:

Described guardrail is the wall body that resin is made, and fixes, blocks or press by screw to insert on installation base plate to fix this wall body.

3. the handle apparatus of circuit-breaker as claimed in claim 2 is characterized in that:

Described guardrail is the wall body that transparent resin is made.