KR102337587B1 - Operating handle apparatus of circuit breaker - Google Patents

Abstract

The present invention provides an operating handle device for a circuit breaker for wiring. The operation handle device of the circuit breaker for wiring of the present invention connects the operation part of the circuit breaker installed inside the housing and the external operation part installed on the door that opens and closes the housing through a shaft, and transmits the rotational force from the external operation part to the circuit breaker through the shaft. Provided is a handle device for a circuit breaker for wiring that is transmitted to the operation unit of

Description

OPERATING HANDLE APPARATUS OF CIRCUIT BREAKER

The present invention relates to a device for handling a circuit breaker for wiring, and more particularly, to a device for handling an operation handle for a circuit breaker capable of ensuring reliability when manually operating a circuit breaker for wiring.

In general, a circuit breaker for wiring is an electrical device that protects a load and a line by automatically blocking a circuit when an abnormality such as an overload or short circuit occurs in the circuit.

When an abnormal current occurs, the circuit breaker detects it in the circuit breaker and automatically cuts off the current regardless of the artificial opening and closing of the circuit breaker, which is called a normal trip.

FIG. 1 is a perspective view showing an operation handle device of a circuit breaker according to the related art, and FIG. 2 is a cross-sectional view showing the operation handle device of a conventional circuit breaker.

The circuit breaker for wiring is installed inside the housing, and a door 10 that opens and closes rotationally to open and close the switchboard circuit breaker to the outside is installed in the housing.

The circuit breaker for wiring is provided with an operation unit 1 configured to convert the rotational force provided from the outside into linear motion to perform ON, OFF, and TRIP operations.

The manipulation unit (1) is formed with one end of the shaft (3) fitted and connected. Here, the shaft 3 has a predetermined length.

In addition, the door 10 is provided with an external operation handle 2 .

Accordingly, when the housing is sealed by rotating the door 10 , the external manipulation handle 2 is coupled to the other end of the shaft 3 described above.

Through this configuration, when the external operation handle 2 is rotated in a state in which the door 10 is closed, the resulting rotational force may be transmitted to the operation unit 1 on the side of the circuit breaker through the shaft 3 .

Therefore, in order to accurately transmit the external rotational force to the operation unit 1, the length of the above-described shaft 3 must be accurate, and the coupling between the other end of the shaft 3 and the external operation handle 2 is facilitated. .

However, when the above-described operation unit 1, shaft 3, and external operation handle 2 of the circuit breaker are applied to each of the enclosures having different door thicknesses, physical damage or external manipulation of the operation unit 1 is applied. It may cause malfunction of the handle 2 .

First, when the thickness of the door 10 is formed to be thicker than a certain amount, the length of the shaft 3 is formed to be relatively long between the operation unit 1 and the external operation handle 2 .

Therefore, the other end of the shaft 3 is coupled by forming an excessive coupling force to the external manipulation handle 2, which increases the load on the rotational operation of the external manipulation handle 2, thereby preventing normal operation. .

In addition, due to the excessive coupling force as described above, there is a problem in that the parts in the operation unit 1 connected to the shaft 3 or the external operation handle 2 are damaged.

Second, when the thickness of the door is below a certain level, the length of the shaft 3 is formed relatively short between the operation unit and the external operation handle 1 .

Therefore, the shaft 3 connected to the operation unit 1 cannot be coupled due to a separation distance from the external operation handle 2 installed on the door, which prevents the operation of the operation unit 1 of the circuit breaker from the outside. have.

As a prior document related to the present invention, there is Republic of Korea Patent Registration No. 20-0441992 (September 22, 2008), the prior document discloses a technology for an external handle locking device of a circuit breaker for wiring.

SUMMARY OF THE INVENTION An object of the present invention is to provide an operation handle device for a circuit breaker that can maintain a uniform distance between an operation unit of a circuit breaker installed in a housing and an external operation unit installed in a door.

Another object of the present invention is to reduce damage to parts by facilitating coupling between a shaft coupled to an operation part of a circuit breaker and an external operation part installed on a door, and to improve operational reliability by operating the circuit breaker from the outside. It is to provide a control handle device of the.

In one aspect, the present invention provides an operating handle device for a circuit breaker.

The operation handle device of the circuit breaker for wiring of the present invention connects the operation part of the circuit breaker installed inside the housing and the external operation part installed on the door that opens and closes the housing through a shaft, and transmits the rotational force from the external operation part to the circuit breaker through the shaft. Provided is a handle device for a circuit breaker for wiring that is transmitted to the operation unit of

Here, the length of the shaft is elastically variable to correspond to the separation distance between the operating unit of the circuit breaker and the external operating unit, which varies according to the opening and closing operation of the door.

Preferably, the shaft includes a first shaft coupled to the operation part of the circuit breaker, and a second shaft connected to the first shaft to be elastically slidably movable, and selectively coupled to the external operation part.

In addition, a sliding groove may be formed at an end of the first shaft.

A pair of position variable holes exposed to the sliding groove may be formed on both sides of the first shaft.

An end of the second shaft may be fitted into the sliding groove to be slidably movable.

A pair of locking protrusions moving along the pair of position variable holes may be formed on both ends of the second shaft.

A first elastic spring for elastically supporting an end of the second shaft may be installed inside the sliding groove.

In addition, positioning grooves that are equally spaced along the longitudinal direction of the first axis may be formed on the inner periphery of the sliding groove.

It is preferable that a positioning protrusion that is elastically movable in a vertical direction of the second shaft and is sequentially hooked on the positioning grooves as the second shaft slides is formed at an end of the second shaft.

In another aspect, the external manipulation unit according to the present invention guides the inclination to a predetermined engaging position in order to transmit the rotational force to the shaft.

The external manipulation unit may include a handle body installed on the door, a handle installed on one surface of the handle body and providing rotational force at the engaging position, and installed on the handle body, wherein an end of the shaft and the handle are coupled It is preferable to include an inclined guide member for inclinedly guiding the end of the shaft to the engaging position, the handle body, and a second elastic spring for elastically supporting the inclined guide member.

Preferably, a covering is installed on the handle body.

It is preferable that the inclination guide member is located inside the covering and elastically flows by the second elastic spring.

It is preferable that a guide groove for guiding the movement of the edge of the inclined guide member is formed on the inner periphery of the covering.

The edge of the inclination guide member may be curvatured.

The present invention has the effect of maintaining a uniform distance between the operating unit of the circuit breaker installed in the housing and the external operating unit installed in the door.

In addition, the present invention has the effect of reducing damage to parts by facilitating the coupling between the shaft coupled to the operation unit of the circuit breaker and the external operation unit installed on the door, and improving the operational reliability of operating the circuit breaker from the outside.

1 is a perspective view showing an operation handle device of a conventional circuit breaker for wiring.
Figure 2 is a cross-sectional view showing the operation handle device of the circuit breaker for wiring in the related art.
Figure 3 is a perspective view showing the operation handle device of the circuit breaker for wiring of the present invention.
4 is an exploded perspective view showing an axis according to the present invention;
5A is a perspective view showing a first axis according to the present invention.
5B is a perspective view showing a second axis according to the present invention.
6 is a cross-sectional view showing an axis according to the invention;
7 is a cross-sectional view showing another example of a shaft according to the present invention.
8 is a view showing another example of an axis according to the present invention.
9 is an exploded perspective view showing an external manipulation unit according to the present invention.
10 is a perspective view showing an inclined guide member according to the present invention.
11 to 13 are cross-sectional views showing a process in which the shaft is coupled to the external manipulation unit according to the present invention.
14 is a cross-sectional view showing an example in which the flow of the inclined guide member according to the present invention is guided.
15 is a view showing another example of the inclination guide member according to the present invention.

Hereinafter, an operation handle device of a circuit breaker for wiring of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a perspective view showing the operation handle device of the circuit breaker for wiring of the present invention, Figure 4 is an exploded perspective view showing the shaft according to the present invention, Figure 5a is a perspective view showing the first shaft according to the present invention, Figure 5b is in the present invention It is a perspective view showing a second axis along the axis, and FIG. 6 is a cross-sectional view showing the axis according to the present invention.

3 and 4, the operating handle device of the circuit breaker for wiring of the present invention includes the operating unit 100 of the circuit breaker and the external operating unit 200 installed in the door (not shown) that opens and closes the housing (not shown). It is connected through 300 and transmits the rotational force from the external operation unit 200 to the operation unit 100 of the circuit breaker through the shaft 300 .

A circuit breaker (not shown) is installed inside the housing, and the operation unit 100 of the circuit breaker converts the rotational force into a linear motion to provide physical force to achieve the ON, OFF, and trip state of the circuit breaker.

Here, the operation unit 100 of the circuit breaker may be coupled to one end of the shaft 300 according to the present invention, as shown in FIG. 3 .

The shaft 300 is formed in a rectangular cross-sectional shape, and although not shown in the drawing, a fitting groove into which the end of the shaft 300 is fitted is formed in the operation unit 100 of the circuit breaker.

Here, the fitting groove is also formed in the shape of a square groove, so that the shaft 300 does not rotate in place to form a coupling force.

On the other hand, the door is hinge-connected to the housing to be rotatable, thereby opening and closing the interior of the housing.

When the door is closed to seal the inside of the door, the external manipulation unit 200 installed on the door is coupled to the other end of the shaft 300 described above, and is a device capable of transmitting rotational force to the coupled shaft 300 . .

The detailed configuration and operation of the external manipulation unit 200 will be described later.

The shaft 300 according to the present invention is largely composed of a first shaft 310 and a second shaft 320 .

The first shaft 310 is formed to have a first length L1, and the second shaft 320 is formed to have a second length L2.

One end of the first shaft 310 is coupled to the operation unit 100 of the circuit breaker.

The other end of the second shaft 320 is selectively coupled to the external manipulation unit 200 .

The other end of the first shaft 310 and one end of the second shaft 320 are connected so that the entire length of the shaft is elastically variable. Accordingly, the overall length of the shaft 300 may be elastically variably adjusted.

A connection structure between the first shaft 310 and the second shaft 320 will be described.

4, 5A, 5B, and 6 , a sliding groove 311 having a predetermined depth inward is formed at the other end of the first shaft 310 .

A pair of variable position holes 312 having a predetermined length are formed on both sides of the other end of the first shaft 310 , and the pair of variable position holes 312 penetrate to be connected to the sliding groove 311 . is formed

The pair of position variable holes 312 are formed at positions facing each other.

In addition, at one end of the second shaft 320 , a sliding shaft 321 that is fitted in the sliding groove 311 and is slidable is formed to extend along the longitudinal direction.

Here, the length of the sliding shaft 321 corresponds to an elastically variable length in substantially the entire length of the shaft 300 .

A locking protrusion 322 protruding from one end of the second shaft 320 is fixed to both sides.

The locking protrusion 322 is composed of a rivet 322a and a pin 322b coupled to the rivet 322a, and spans a pair of position variable holes 312 formed at the end of the first shaft 310. It forms a state that can be moved along the position variable hole 312 in the state.

The locking protrusions 322 are fastened to each other through the fastening holes 320a formed in the sliding shaft 321 of the second shaft 320 , and are disposed to pass through each of the pair of position variable holes 312 .

That is, the locking protrusion 322 slides along each position variable hole 312 . In addition, the length of the position variable hole 312 may regulate the sliding movement range of the locking protrusion 322 .

In addition, a first elastic spring 330 is installed inside the sliding groove 311 of the first shaft 310 .

The first elastic spring 330 elastically supports the end of the sliding shaft 321 of the second shaft 320 inserted into the sliding groove 311 .

Accordingly, the second shaft 320 is capable of elastic flow by the elastic force of the first elastic spring 330 , and in a state in which external force does not act along the axial direction, by the return elastic force of the first elastic spring 330 . It is possible to return to the original position.

In addition, a pair of coupling protrusions 323 coupled to the handle body 210 of the external manipulation unit 200 to be described later are formed on both ends of the other end of the second shaft 320 .

With reference to the above configuration, the operation of the operation handle device of the circuit breaker for wiring of the present invention will be described.

3 and 4 , in a state in which the door is opened, the operation unit 100 of the circuit breaker installed in the housing and the external operation unit 200 installed in the door are spaced apart.

Here, the shaft 300 coupled to the operation unit 100 of the circuit breaker is waiting to protrude along the front of the housing.

In this state, when the housing is sealed by rotating the door, the external manipulation unit 200 installed on the door may be coupled to the shaft 300 .

In detail, the other end of the second shaft 320 may be coupled to the external manipulation unit 200 according to the closing operation of the door, and an external force due to the coupling may be transmitted.

The second shaft 320 is pressed by an external force, and the sliding shaft 321 formed at one end of the second shaft 320 slides while being inserted into the sliding groove 311 of the first shaft 310 . can be

At this time, the locking protrusions 322 formed at the end of the sliding shaft 321 are slidably moved along the position variable holes 312 formed at the other end of the first shaft 310 .

In addition to this, the first elastic spring 330 may achieve a compressed state due to the sliding shaft 321 of the second shaft 320 being inserted into the sliding groove 311 .

Accordingly, in the shaft 300 according to the present invention, the second shaft 320 and the first shaft 310 are elastically slidable so that the overall length is changed, so that the operating unit 100 of the circuit breaker according to the thickness of the door. It is possible to actively cope with the change in the distance between the and the external manipulation unit 200 .

For example, when the thickness of the door is formed to be thicker than a certain level, the length of the shaft 300 is relatively long between the operation unit 100 and the external operation unit 200 , but the shaft 300 and the external operation unit 200 are formed to be relatively long. ) to prevent excessive coupling force formation, thereby reducing the load according to the rotational operation of the external manipulation unit 200 and allowing a normal rotational operation to be performed.

In addition, by preventing excessive coupling force formation as described above, it is possible to prevent damage to parts in the manipulation unit 100 or the external manipulation unit 200 connected to the shaft 300 .

And, when the thickness of the door is less than a certain level, the total length of the shaft 300 in the present invention is set to be longer than the length at which the operating unit 100 and the external operating unit 200 of the circuit breaker are normally coupled, so that the operating unit 100 of the circuit breaker ) and the shaft 300 coupled to the external manipulation unit 200 may be normally coupled.

In addition, the second length L2 of the second shaft 320 according to the present invention is preferably formed to be shorter than the first length L1 of the first shaft 310 .

The second shaft 320 is formed as a free end, and is physically coupled to the external manipulation unit 200 installed in the door when the door is closed.

Here, since the sliding shaft 321 of the second shaft 320 is substantially inserted into the sliding groove 311 of the first shaft 310 and slidably moved, the sliding shaft (second shaft 320) ) must be formed to be shorter than the length of the first shaft 310 so that the axial deformation during flow may be small.

7 is a cross-sectional view showing another example of a shaft according to the present invention.

Referring to FIG. 7 , on the inner periphery of the sliding groove 311 formed on the first shaft 310 , a plurality of positioning grooves 311a are formed at equal intervals along the longitudinal direction of the first shaft 310 . .

The positioning groove 311a is preferably formed as a semi-circular groove so that a spherical positioning protrusion 343 to be described later can be fitted thereinto.

In addition, a pair of positioning members 340 are formed on both sides of the sliding shaft 321 of the second shaft 320 .

The positioning member 340 elastically flows along the vertical direction of the sliding shaft 321 .

Each of the positioning members 340 includes an installation groove 341 , a spring 342 , and a hemispherical positioning protrusion 343 .

The installation groove 341 is formed to achieve a predetermined depth from both sides of the sliding shaft 321 .

The hemispherical positioning protrusion 343 is located in the installation groove 341 .

The spring 342 is installed in the installation groove 341 to elastically support the positioning protrusion 343 .

Accordingly, the positioning protrusion 343 is inserted into the installation groove 341 when an external force is applied, and when the external force is removed, the positioning protrusion 343 protrudes to the outside of the installation groove 341 by the elasticity of the spring 342 .

And, when the sliding shaft 321 is inserted into the sliding groove 311 formed on the first shaft 310 , the positioning protrusion 343 is formed to be inclined at a predetermined angle along the other end from one end of the sliding shaft 321 . Thus, it may be easily inserted into the installation groove (311a).

Through this configuration, after the door is closed, after the shaft 310 installed on the operation unit 100 of the circuit breaker and the external operation unit 200 are coupled to each other, the elastically variable length of the shaft 300 is maintained constant. regulated to be

That is, the sliding shaft 321 of the second shaft 320 is inserted into the sliding groove 311 of the first shaft 310 , and the positioning protrusions 343 at the inserted position protrude from the installation groove 341 . is inserted into each of the positioning grooves 311a of the corresponding position and positioned.

8 is a view showing another example of an axis according to the present invention.

Referring to FIG. 8 , the sliding shaft 321 ′ of the second shaft 320 according to the present invention is formed in a circular rod shape, and the sliding groove 311 ′ of the first shaft 310 is the sliding shaft 321 ′. ) may be formed in a cylindrical shape to fit.

Therefore, when the sliding shaft 321' is slidably moved while being fitted in the sliding groove 311', when the total length of the shaft 300 is changed by minimizing the frictional force generated, an excessive force is applied to the shaft 300 itself. It can also be used to prevent damage.

Next, an external manipulation unit coupled to the other end of the second shaft will be described.

9 is an exploded perspective view showing an external manipulation unit according to the present invention, FIG. 10 is a perspective view showing an inclined guide member according to the present invention, and FIGS. 11 to 13 are views showing a process in which the shaft is coupled to the external manipulation unit according to the present invention are cross-sections.

9 and 10 , the external manipulation unit 200 includes a handle body 210 , a handle 220 , an inclined guide member 230 , a second elastic spring 240 and a covering 250 . is composed of

The handle body 210 is installed on the door so as to be positioned at a position corresponding to the operation unit 100 of the circuit breaker described above.

The handle 220 is rotatably installed on one surface of the handle body 210 , passes through the central portion of the handle body 210 , and a coupling member 221 coupled to the other end of the second shaft 320 . has

Here, a position where the coupling member 221 and the other end of the second shaft 320 are coupled is referred to as a coupling position.

In addition, the inclination guide member 230 is installed on the other surface of the handle body 210 .

The inclination guide member 230 has a ring-shaped rim 231 and a central hole 232a penetrating through the center, and has an inclined surface 232b inclined from the inner periphery of the rim 231 along the center. Consists of a body 232 .

The coupling position may be exposed to the outside by the central hole 232a.

The covering 250 is installed on the other surface portion of the handle body 210 , and covers the outer surface portion and the edge 231 of the inclination guide member 230 .

The second elastic spring 240 elastically supports the other surface portion of the handle body 210 and the bottom surface of the edge 231 of the inclination guide member 230 .

Accordingly, the second elastic spring 240 enables elastic flow while the inclination guide member 230 is covered by the covering 250 .

With reference to the above configuration, the operation of the external manipulation unit 200 will be described.

11 to 13 , as described above, as the door is closed, the shaft 300 coupled to the operating unit 100 of the circuit breaker approaches the external operating unit 200 while the handle 220 is coupled at the coupled position. It is coupled to the member 221 .

At this time, the shaft 300 may be bent downward due to the load of the shaft 300 itself, and thus the second shaft 320 may be displaced from the coupling position of the external manipulation unit 100 .

In this state, when the other end of the second shaft 320 is gradually contacted with the inclined surface 232b of the inclined guide member 230 , the other end of the contacting second shaft 320 is the inclined surface of the inclined body 232 . It may be guided to move to the central hole 232a formed in the center of the inclined body 232 along the 232b.

At the same time, the inclination guide member 230 is elastically flowed by the second elastic spring 240 , thereby absorbing the shock caused by contact or collision with the second shaft 320 , and the inclination of the inclined body 232 . can be changed so that the other end of the second shaft 320 can be easily moved to the central hole 232a.

Accordingly, the other end of the second shaft 320, which is inclinedly guided by the inclined surface 232b of the inclined body 232, is easily guided to the engaging position, and the engaging member 221 of the handle 220 positioned at the engaging position and can be combined.

14 is a cross-sectional view showing an example in which the flow of the inclined guide member according to the present invention is guided.

Referring to FIG. 14 , a guide groove 251 for guiding the movement of the edge 231 of the inclined guide member 230 may be formed on the inner periphery of the covering 250 ′ according to the present invention.

By this configuration, when the other end of the second shaft 320 is in contact with the inclined guide member 230 , the inclined guide member 230 elastically flows while being pressed, and the edge 231 of the inclined guide member 230 is While the movement is guided by the guide groove 251 formed on the inner periphery of the covering 250 ′, it is possible to prevent the inclined guide member 230 from being excessively twisted inside the covering 250 ′ while elastically flowing.

15 is a view showing another example of the inclination guide member according to the present invention.

Referring to FIG. 15 , the edge 231 of the inclination guide member 230 may be subjected to a curvature (R) treatment.

Due to this configuration, when the other end of the second shaft 320 is in contact with the inclined guide member 230 and, accordingly, the inclined guide member 230 is pressed and elastically flows, the edge 231 of the inclined guide member 230 is ) and the inner periphery of the covering 250 can be minimized to solve problems such as deformation of the rim 231 of the inclined guide member 230 .

In addition, as described with reference to FIGS. 14 and 15, by solving the problem of the inclination guide member 230 being twisted inside the coverings 250 and 250', by maintaining the twisted state inside the coverings 250 and 250', the external manipulation unit ( 200) can be prevented from occurring in itself.

As mentioned above, although specific embodiments of the operation handle device of the circuit breaker of the present invention have been described, it is apparent that various implementation modifications are possible within the limits that do not depart from the scope of the present invention.

Therefore, the scope of the present invention should not be conveyed limited to the described embodiments, and should be defined by not only the claims described below, but also the claims and equivalents.

That is, it should be understood that the above-described embodiment is illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims; All changes or modifications derived from the concept of equivalents thereof should be construed as being included in the scope of the present invention.

100: control panel
200: external control unit
210: handle body
220: handle
230: inclined guide body
240: second elastic spring
300 : axis
310: first axis
311: sliding groove
312: position variable hole
313: positioning groove
320: second axis
321: sliding axis
322: stumbling block
330: first elastic spring

Claims (11)

a control unit of the circuit breaker installed inside the housing;
an external operation unit installed on a door that opens and closes the housing;
and a shaft that transmits the rotational force from the external operation unit to the operation unit of the circuit breaker,
The shaft is elastically variable in length to correspond to the separation distance between the operating unit of the circuit breaker and the external operating unit, which varies according to the opening and closing operation of the door,
The axis is
a first shaft coupled to the operation unit of the circuit breaker;
and a second shaft connected to the first shaft and elastically slidable, and selectively coupled to the external manipulation unit;
A plurality of positioning grooves are formed at equal intervals along the longitudinal direction of the first axis on the inner periphery of the sliding groove formed on the first shaft,
The plurality of positioning grooves are formed as semicircular grooves so that the spherical positioning protrusions can be fitted,
A pair of positioning members is formed on both sides of the sliding shaft of the second shaft,
The pair of positioning members elastically flow along the vertical direction of the sliding axis,
The pair of positioning members is composed of an installation groove, a spring, and a hemispherical positioning projection,
The installation groove is formed to achieve a predetermined depth from both sides of the sliding shaft,
The hemispherical positioning protrusion is located in the installation groove,
The spring is installed in the installation groove to elastically support the hemispherical positioning protrusion,
The sliding shaft of the second shaft is formed in a circular rod shape, and the sliding groove of the first shaft is formed in a cylindrical shape so that the sliding shaft is fitted,
The other end of the second shaft is selectively coupled to the external manipulation unit,
and the external manipulation unit is coupled to the second shaft by guiding an end of the second shaft in an inclined manner.
delete delete delete delete The method of claim 1,
wherein the first axis forms a first length, and the second axis forms a second length,
The second length of the second shaft on the sliding side to prevent axial deformation in a state in which the sliding shaft of the second shaft is inserted into the sliding groove of the first shaft and moved is the first length of the first shaft Control handle device of a circuit breaker for wiring, characterized in that it is formed shorter than the length.
a control unit of the circuit breaker installed inside the housing;
an external operation unit installed on a door that opens and closes the housing;
and a shaft that transmits the rotational force from the external operation unit to the operation unit of the circuit breaker,
The external operation unit,
Inclined guidance to a predetermined combined position to transmit the rotational force to the shaft,
The shaft is elastically variable in length by an external force generated when it is coupled with the external manipulation unit at the coupling position,
The axis is
a first shaft coupled to the operation unit of the circuit breaker;
and a second shaft connected to the first shaft and elastically slidable, and selectively coupled to the external manipulation unit;
A plurality of positioning grooves are formed at equal intervals along the longitudinal direction of the first axis on the inner periphery of the sliding groove formed on the first shaft,
The plurality of positioning grooves are formed as semicircular grooves so that the spherical positioning protrusions can be fitted,
A pair of positioning members is formed on both sides of the sliding shaft of the second shaft,
The pair of positioning members elastically flow along the vertical direction of the sliding axis,
The pair of positioning members is composed of an installation groove, a spring, and a hemispherical positioning projection,
The installation groove is formed to achieve a predetermined depth from both sides of the sliding shaft,
The hemispherical positioning protrusion is located in the installation groove,
The spring is installed in the installation groove to elastically support the hemispherical positioning protrusion,
The external operation unit,
a handle body installed on the door;
a handle that is installed on one surface of the handle body and provides a rotational force at the combined position;
an inclined guide member installed on the other surface of the handle body and inclined to guide the end of the shaft to the coupling position so that the end of the shaft and the handle are coupled;
and a second elastic spring elastically supporting the handle body and the inclination guide member;
A covering is installed on the handle body, and the inclination guide member is located inside the covering and configured to elastically flow by the second elastic spring,
When the other end of the second shaft is in contact with the inclination guide member and elastically flows while the inclination guide member is pressed, the edge of the inclination guide member forms a curvature, so that the edge of the inclination guide member and the inner periphery of the covering Control handle device for a circuit breaker, characterized in that by reducing the friction force of the inclination guide member to prevent deformation of the rim.
delete 8. The method of claim 7,
On the inner periphery of the covering,
A control handle device for a circuit breaker, characterized in that a guide groove for guiding the movement of the edge of the inclined guide member is formed. delete delete

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