KR102050403B1 - Distribution switch operation indicator - Google Patents

Abstract

The present invention relates to an operation indicator for a distribution switch, which indicates an operation to easily confirm open and closed states of the switch. According to the present invention, the operation indicator for a distribution switch comprises: a switching device electrically connecting or disconnecting a distribution line by rotation of a rotary shaft; a switching body receiving the switching device therein; a manual operation bar; a side operation indication unit; a needle indicating any one from closing and opening of the side operation indication unit; an opening hiding plate installed to hide or expose the side opening indication; a closing hiding plate installed to hide or expose the side closing indication; a hiding plate connection bar; and a safety pin temporarily fixing the opening hiding plate to the side operation indication unit while the opening hiding plate hides the side operation indication.

Description

Distribution switch operation indicator

The present invention relates to a switchgear operation indicator for power distribution for displaying the operation to easily grasp the operation of the open and closed state of the switch.

In general, a power distribution switch is installed in a distribution line to cut off electricity or to supply electricity.

The switchgear for power distribution is installed between a lead wire and a lead wire to supply or cut electricity according to the operation of the water leveling device, and is usually installed together in the pole where the power distribution line is installed.

The conventional switchgear for a power distribution has been disclosed as a "polymer insulating load switch for processing" in Korea Patent Publication No. 10-0718497 (2007.5.16.).

The above-described conventional polymer insulated load switch has a vacuum switch vertically embedded inside the housing, and a shock absorbing element is filled between the vacuum switch and the housing, whereby a failure rate or malfunction of the load switch due to a difference in the thermal expansion coefficient occurs. Could have occurred.

In addition, the conventional polymer insulated load switch for processing is provided with a handle for operating the polymer insulated load switch from the outside for manual operation, and the handle is a guide indicating opening and closing to easily grasp the operating state from the outside. Is formed.

However, the conventional polymer insulated load switch for processing has a cross-talk in the direction indicated by the guide and the handle even if a guide for indicating the operating state is formed because the handle is formed as a “T” shape as a whole by the guide. By malfunctioning the handle, there was a problem that an electric shock or disconnection occurred.

Accordingly, the Korean Utility Model Publication No. 20-0298407 (December 16, 2002) discloses a switchgear operation indicator for power distribution. However, a conventional switchgear operation indicator for power distribution is configured to simply display the opening and closing by luminous. It was only distinguishable at night, but it was insignificant to prevent the error of operation.

The present invention has been made to solve the above problems, the problem to be solved by the present invention can clearly grasp the state of the opening and closing of the switch, and clearly understand the operating state in the lower part of the pole to the error of operation It is an object of the present invention to provide a switchgear operation indicator for power distribution that can prevent the occurrence of a safety accident according to.

Switching switch operation indicator according to an embodiment of the present invention for achieving the above object is a switching mechanism for electrically connecting or disconnecting the distribution line in accordance with the rotation of the rotary shaft, the opening and closing body for accommodating the switching mechanism therein, the opening and closing body Is coupled to the rotating shaft exposed to either side of the switching mechanism to perform a closing operation for connecting the power supply, or to rotate the rotating shaft to perform an opening operation for disconnecting the power, manual operation of the rotating shaft is coupled to the center Bars are formed on the side of the opening and closing body in which the manual operation bar is located, the side closed display and the side displayed in the opening operation position of the switching mechanism according to the rotation angle of the rotary shaft Side operation indicator including an open indication, the rotated angle of the manual operation bar In accordance with the guide to indicate any one of the closing and opening of the side operation indicator, protruding downward from the center of the manual operation bar to grasp the closing and opening of the switching mechanism, the side opening to hide or show the side opening indication Opening cover plate which is installed to be slidably moved up and down in the portion of the side operation display portion in which the display is positioned, and slides up and down in the portion of the side operation display portion in which the side closing indication is located so as to hide or show the side closing indication. The manual operation of the closing cover plate, the opening cover plate and the closing cover plate in the sliding operation in the opposite direction in accordance with the rotation of the manual operation bar is installed so as to expose only one of the side open display and side closed display. Connect to one side of the bar, the closing screen plate of the manual operation bar A cover plate connecting rod connected to the side, and the opening cover plate to the side operation display unit in a state in which the opening cover plate covers the side opening mark to prevent the opening operation of the switching mechanism by easily rotating the manual operation bar. It may include a safety pin for temporarily fixing.

The safety pin may be formed of a synthetic resin to be easily broken and operated during the automatic operation of the switching mechanism.

When the opening screen covers the side opening mark, it is covered together and when the opening screen shows the side opening mark, it is shown together to release the insulating gas charged in the opening and closing body only in the operating state of the switching mechanism. It may include a discharge valve which is installed in a portion where the open display is formed to discharge the insulating gas filled in the opening and closing body.

Bottom operation display unit which is displayed on the bottom surface of the opening and closing bottom and the bottom closing display, the bottom opening display and the bottom closing display to grasp the opening operation and the closing operation of the switching mechanism in the state that the opening and closing body is installed on the pole The bottom cover plate installed to be slidably movable on the bottom of the opening and closing body so that any one of them is selectively visible, and the bottom cover plate is slidably moved to cover only one of the bottom open display and the bottom closed display. According to the operation may include a bottom driving unit for sliding the bottom shielding plate.

The bottom driving part is located on one side of the manual operation bar and is moved on the first operation cylinder having a first piston for inflow and outflow of the working fluid in accordance with the operation of the manual operation bar, the other side of the manual operation bar A second working cylinder having a second piston which moves together according to the operation of the manual operation bar to inflow and outflow of working fluid, in the first working cylinder and the second working cylinder by the first piston and the second piston; A driving cylinder having a driving piston provided with an inflow and outflow of the working fluid and sliding the bottom shielding plate, and connecting the first working cylinder, the second working cylinder, and the driving cylinder to inflow working fluid therebetween; Or it may include a connection hose for outflow.

According to the present invention, according to the operation of the manual operation bar by the open screen and the closed screen to cover any one of the side open display or the side closed display to display only the current operating state, such as an electric shock or disconnection accident according to the error The occurrence of a safety accident can be prevented.

In addition, the bottom operation indicator is displayed at the bottom of the opening and closing body so that the operation state can be easily grasped from the lower part of the pole, and by displaying only one of the bottom opening indication or bottom closing indication by the bottom obstruction plate according to the operation of the manual operation bar. In this case, the current operating status can be clearly understood.

In addition, the bottom operating part for operating the bottom screening plate is driven by the operating cylinder by the working fluid, even if the bottom operation indicator is located far from the manual operation bar can operate the bottom screen in conjunction with the manual operation bar.

1 is a bottom perspective view of a switchgear operation indicator of a power distribution unit according to an embodiment of the present invention as viewed from the bottom thereof;
2 is a side view of the side operation display unit of the switchgear operation indicator according to an embodiment of the present invention.
3 is a bottom view of the bottom operation indicator of the switchgear operation indicator according to an embodiment of the present invention.
4 is a configuration diagram schematically showing a bottom driving unit of the switchgear operation indicator for power distribution according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 2, the switchgear operation indicator 100 according to the embodiment of the present invention may include a switching mechanism (115).

The switching mechanism 115 may electrically connect or disconnect the lead wire and the lead wire to be distributed.

The switching mechanism 115 couples the busbars to the rotary shaft 117, and the busbar rotates according to the rotation of the rotary shaft 117 to connect the terminals of the lead wires and the terminals of the lead wires to each other to perform a closing operation for connecting power. When the rotating shaft 117 is rotated in the opposite direction of the closing operation, the opening operation of disconnecting power from the terminal of the leader line and the terminal of the leader line in a state in which the busbar is connected may be performed.

The switching mechanism 115 may be implemented with a switching mechanism 115 installed in various types of load switchgear, and since the switching mechanism 115 is a known configuration, a detailed description thereof will be omitted.

As shown in Figures 1 to 3, the switchgear operation indicator 100 according to an embodiment of the present invention may include an opening and closing body (110).

The opening and closing body 110 may be formed in a hollow box shape, the switching mechanism 115 may be installed inside the opening and closing body 110.

One side of the opening and closing main body 110 may be drawn in, and the other side of the opening and closing main body 110 may be drawn out, and the leading line and the leading line are the switching mechanism 115 accommodated inside the opening and closing body 110. Can be connected to.

In addition, insulators are installed in the lead wires and the lead wires, respectively, to insulate the opening body 110 from the lead wires and the lead wires.

On the other hand, the rotation shaft 117 of the switching mechanism 115 may protrude from the other side where the lead wire and the lead wire is connected in the opening and closing body 110, between the rotation shaft 117 and the opening and closing body 110 by an O-ring. Can be confidential.

Inside the opening and closing body 110 may be filled with an insulating gas to minimize the arc generated at the contact when the switching mechanism 115 performs the closing operation or opening operation, the insulating gas is SF6 (6) Sulfur fluoride).

As shown in Figures 1 and 2, the switchgear operation indicator 100 according to an embodiment of the present invention may include a manual operation bar (120).

The manual operation bar 120 is coupled to the rotary shaft 117 to perform the closing operation for electrically connecting the switching mechanism 115 in the form of rotating the rotary shaft 117 from the outside, or to perform the opening operation to electrically disconnect. Can be.

Manual operation bar 120 may be formed in the form of a bar to easily rotate the rotating shaft 117, the rotating shaft 117 is coupled in the form of being fitted in the center of the manual operation bar 120 manual operation handle Grasp both sides of the manual operation bar 120 to rotate in the form of rotating the rotating shaft 117.

In addition, the central part of the manual operation bar 120 protrudes downward and according to the rotation of the manual operation bar 120, the side opening display 131 and the side closing display 133 in the side operation display unit 130 to be described below. The guide portion 121 pointing to any one of them may be formed.

Instructions 121 may be painted in a visually prominent color to easily identify the visually pointed portion.

As shown in Figure 1 and 2, the switchgear operation indicator 100 according to an embodiment of the present invention may include a side operation display unit (130).

The side operation display unit 130 may display the current operating state of the switching mechanism 115.

Manual operation bar 120 may be located on the side of the opening and closing body 110 is located, the side operation indicator 130 is the side in which the switching mechanism 115 is opened in accordance with the rotation angle of the rotating shaft 117 The side operation display 130 may be configured in such a manner that the opening display 131 is displayed and the side of the switching mechanism 115 is closed.

The side opening display 131 and the side closing display 133 may be displayed in letters, such as English such as open and close, Chinese characters such as 開 and ,, Korean characters such as open and closed, or may be different from each other in figures or red and green colors. The open state and the closed state of the switching mechanism 115 may be displayed to be clearly visible in the form of color.

The side open display 131 and the side closed display 133 may be displayed on one side and the other side of the manual operation bar 120 about the rotation axis 117, respectively, and the guide 121 of the manual operation bar 120. One of the side opening display 131 and the side closing display 133 may be guided by the portion 121.

As shown in Figure 1 and 2, the switchgear operation indicator 100 according to an embodiment of the present invention may include an opening and closing plate 140 and the closing and closing plate 145.

The opening cover plate 140 is installed to be slidably moved up and down on the side display portion in which the opening mark is displayed so as to cover the side opening mark 131 or to cover the side opening mark 131 so that the side opening mark 131 is visible. Can be released.

The closing cover plate 145 is installed to be slidably moved up and down in the side operation indicator 130 where the side closing indicator 133 is displayed so as to cover the side closing indicator 133 or to show the side closing indicator 133. The side closing display 133 may be unobstructed.

The opening and closing plate 140 and the closing and closing plate 145 may be formed in the shape of a plate, and the opening and closing plate 140 and the closing and closing plate 145 may be side open marks 131 or side closed marks 133. It may be painted in the same color as the opening and closing body 110 to feel a sense of unity with the opening and closing body 110 in the state.

Meanwhile, the opening and closing plate 140 and the closing and closing plate 145 are slid up and down at a portion where the side opening mark 131 and the side closing mark 133 are displayed, so that the side opening mark 131 and the side closing mark 133 are moved. The side guide part 135 for guiding the sliding movement of the opening and closing plate 140 and the closing and closing plate 145 up and down, respectively, may be formed on the side operation indicator 130.

As shown in Figures 1 and 2, the switchgear operation indicator 100 according to an embodiment of the present invention may include a blind plate connector (147).

The blind plate connecting rod 147 is a manual operation bar so that when the switching mechanism 115 is operated by the manual operation bar 120, the opening and closing plate 140 and the closing shield plate 145 are slid and moved together. 120 and the opening and closing plate 140 and the closing and closing plate 145 may be connected.

The cover plate connector 147 connects the open screen plate 140 to one side where the side opening mark 131 is positioned at the manual operation bar 120, and the side closing indication 133 is positioned at the manual operation bar 120. The closed screen plate 145 may be connected to the other side.

The open shield plate 140 and the closed shield plate 145 connected to the manual operation bar 120 connected to the cover plate connector 147 have an open shield plate 140 located at one side when the manual operation bar 120 is rotated. When sliding downward, the closing cover plate 145 positioned in the opposite direction may move in the form of sliding in the upper direction.

Here, when the opening and closing plate 140 and the closing and closing plate 145 is slid to the bottom, the side open display 131 and the side closed display 133 may be hidden from the outside to be visible from the outside, sliding to the top In this case, the hidden side view display and the side closed display 133 may be visible to the outside.

As shown in FIG. 2, the switchgear operation indicator 100 according to the embodiment of the present invention may include a safety pin 149.

The safety pin 149 can be easily operated by the operator arbitrarily operating the manual operation bar 120 to prevent the conversion from the closed operating state to the open operating state.

The safety pin 149 is a side of the open cover plate in the state that the open cover plate 140 is hidden so that the side open display 131 is not visible, that is, the manual operation bar 120 is operated so that the switching mechanism 115 is closed. The rotation of the manual operation bar 120 can be fixed in a form fixed to the operation display unit 130.

In the side guide portion 135 in which the opening cover plate 140 of the side operation display unit 130 slides, a pin hole into which the safety pin 149 penetrates is formed therethrough, and an opening cover plate 140 corresponding to the pin hole. The pin fixing part 141 is formed in the part of the safety pin 149 is opened through the pin hole of the side guide part 135 and the pin fixing part 141 of the opening shielding plate 140 in the form of opening shielding plate 140 It can be fixed to the side operation display 130.

Of course, when operating to open the switching mechanism 115 by operating the manual operation bar 120, after removing the safety pin 149, the operation is possible, as well as the safety pin 149 is a safety pin according to the manual operation of the operator ( 149 is only caught and performs a function of warning the operator, when the switching mechanism 115 is automatically operated according to the load, the safety pin 149 is broken by the operating force of the switching mechanism 115, the switching mechanism 115 Can be temporarily fixed to work.

The safety pin 149 may be implemented as a split pin divided at both ends, and the safety pin 149 may be formed of synthetic resin so as to easily break when the switching mechanism 115 operates automatically.

As shown in Figure 1 and 2, the switchgear operation indicator 100 according to an embodiment of the present invention may include a discharge valve (170).

The discharge valve 170 may discharge the insulating gas filled in the opening and closing body 110 to the outside to repair or repair the switching mechanism 115.

The discharge valve 170 is installed at the side of the side operation indicator 130 in which the side opening indicator 131 is located, so that the switching mechanism 115 is covered by the opening and closing plate 140 at the closing operation, and only at the opening operation. As the sliding cover 140 opens, the outside is exposed to the outside, so that the insulating gas may be discharged by operating the discharge valve 170 only when the switching mechanism 115 is opened.

That is, the discharge valve 170 to the outside only during the opening operation of the switching mechanism 115 in accordance with the operation of the manual operation bar 120 to discharge the insulating gas only in the opening operation that does not conduct electricity from the switching mechanism 115. Can be seen exposed.

1 and 3, the switchgear operation indicator 100 according to an embodiment of the present invention may include a bottom operation display unit 150.

The bottom operation display unit 150 may notify the outside by displaying the open or closed operation state of the switching mechanism 115 on the bottom surface of the opening and closing body 110 according to the operation of the manual operation bar 120.

The bottom operation display unit 150 may be located at the bottom of the opening and closing body 110 to check the operating state of the switching mechanism 115 without climbing the pole when the switchboard is installed on the pole.

The bottom operation display unit 150 is configured such that a bottom open display 151 is displayed at one side of the rotation of the operation display bar around the rotation shaft 117, and a bottom closed display 153 is displayed at the other side of the rotation of the operation display bar. Can be.

The bottom opening display 151 and the bottom closing display 153 of the bottom operation display unit 150 may be displayed in letters, such as English characters such as open and close, Chinese characters such as 開 and ,, Korean characters such as open and closed, or figures. The open state and the closed state of the switching mechanism 115 may be displayed in a form of different colors of red and green so as to clearly recognize the state.

1, 3 and 4, the switchgear operation indicator 100 according to an embodiment of the present invention may include a bottom shielding plate 157 and the bottom driving unit 160.

The bottom cover plate 157 slides on the bottom of the opening and closing body 110 to move the bottom cover plate 157 to either the bottom open display 151 or the bottom closed display 153 displayed on the bottom operation display unit 150. The operating state of the switching mechanism 115 can be displayed in a hidden form.

For example, when the bottom cover plate 157 covers the bottom open display 151, since only the bottom closed display 153 is visible from the outside, the switching mechanism 115 appears to be closed, and the bottom cover plate 157 is bottomed. When the closing display 153 is covered, since only the bottom opening display 151 is visible from the outside, the switching mechanism 115 may be shown to be open.

The bottom cover plate 157 may be formed of a plate having a size that may cover any one of the bottom open display 151 and the bottom closed display 153, and the bottom operation display unit 150 may include a bottom cover plate 157. The bottom guide part 155 may be formed to guide both ends of the bottom shielding plate 157 in a sliding direction of the bottom shielding plate 157.

The bottom driving unit 160 may drive the bottom cover plate 157 so that the bottom cover plate 157 slides according to the operation of the manual operation bar 120.

The bottom driving unit 160 may include a first working cylinder 161, a second working cylinder 163, and a driving cylinder 165.

The first operation cylinder 161 may be installed on one side of the manual operation bar 120, the second operation cylinder 163 may be installed on the other side of the manual operation bar 120.

The first actuating cylinder 161 may be installed so that the first piston 162 is slidably moved in the first actuating cylinder 161, and the shaft of the first piston 162 may be configured as the manual operating bar 120. It can be pressed by one side.

The first working cylinder 161 may be filled with a working fluid for driving the driving cylinder 165, and the working fluid may be implemented with air or a fluid.

The working fluid filled in the first working cylinder 161 is pressurized by the first piston 162 and discharged, or reintroduced into the interior of the first working cylinder 161 by the back pressure, thereby returning the first piston 162. Pressurized to return to the position of.

In addition, an outlet inlet 161a through which the working fluid flows in and out may be formed in the first working cylinder 161.

The second actuating cylinder 163 may be installed to allow the second piston 164 to slide in the second actuating cylinder 163 and the shaft of the second piston 164 may be manually operated. It can be pressed by the other side of the.

The second working cylinder 163 may be filled with a working fluid for driving the driving cylinder 165, and the working fluid may be implemented with air or a fluid.

The working fluid filled in the second working cylinder 163 is pressurized by the second piston 164 to be discharged or reintroduced into the inside of the second working cylinder 163 at a back pressure to return the second piston 164 to the original state. Pressurized to return to position.

An outlet inlet 163a through which the working fluid flows in and out may be formed in the second operation cylinder 163.

The driving cylinder 165 may slide the bottom shielding plate 157 by receiving a working fluid discharged by being pressed from the first working cylinder 161 and the second working cylinder 163.

The driving cylinder 165 is installed so that the driving piston 166 is slidably moved by the pressure of the working fluid in the driving cylinder 165, and the shaft of the driving piston 166 is coupled to the bottom cover plate 157 to drive the piston. According to the movement of 166, the bottom shielding plate 157 may slide.

Meanwhile, the driving cylinder 165 may move the bottom shielding plate 157 so that the bottom shielding plate 157 covers the bottom opening display 151 or covers the bottom closing display 153 and the driving cylinder 165. ), The first supply port 165a receiving the working fluid from the first working cylinder 161 and the second supply port 165b receiving the working fluid from the second working cylinder 163 form the driving piston 166. It may be formed on both sides as a center.

The driving cylinder 165 configured as described above has a working fluid of the first working cylinder 161 when the first piston 162 of the first working cylinder 161 is pressurized according to the rotation of the manual operation bar 120. When the second piston 164 of the second operation cylinder 163 is pressed according to the rotation of the manual operation bar 120 and pressurizes one side of the driving piston 166 by flowing through the supply port 165a, 2 As the working fluid of the working cylinder 163 flows in through the second supply port 165b to press the other side of the driving piston 166, the driving piston 166 moves as the driving piston 166 moves. The bottom cover plate 157 coupled to the shaft of the piston 166 may be slidably moved.

Here, when the first piston 162 is pressed by the manual operation bar 120, the working fluid of the first operating cylinder 161 is supplied to the drive cylinder 165 to the first supply port (165a), The working fluid charged in the driving cylinder 165 may flow back to the second working cylinder 163 through the second supply port 165b.

The bottom driving unit 160 configured as described above, for example, the first operation cylinder 161 is installed in a portion where the side opening display 131 of the side operation display unit 130 is installed, the second operation cylinder 163 is the side operation display unit When the side closing display 133 of the 130 is installed, the manual operation bar 120 is operated to open the switching mechanism 115, the second operation cylinder 163 by the manual operation bar 120 As the shaft of the second piston 164 of) is pressed, the working fluid filled in the second working cylinder 163 is supplied to the driving cylinder 165 through the second supply port 165b.

Then, the working fluid supplied to the second supply port 165b moves the bottom cover plate 157 so as to cover the bottom closed display 153 of the bottom cover plate 157 while pressing the driving piston 166.

On the contrary, when the manual operation bar 120 is operated so that the switching mechanism 115 is closed, the shaft of the first piston 162 of the first operation cylinder 161 is pressed by the manual operation bar 120, thereby providing a first operation. The working fluid filled in the working cylinder 161 is supplied to the driving cylinder 165 through the first supply port 165a.

Then, the working fluid supplied to the first supply port 165a presses the driving piston 166 in a direction opposite to the working fluid supplied through the first supply port 165a, and the bottom shielding plate 157 is bottomed. The bottom blocking plate 157 may be moved to cover the opening display 151.

Here, the first operation cylinder 161, the second operation cylinder 163, and the driving cylinder 165 may have the driving cylinder 165 even when the bottom operation display unit 150 is located far from the side operation display unit 130. Since the first working cylinder 161 and the second working cylinder 163 are connected by the connection hose 167, the bottom cover plate 157 can be easily operated regardless of the distance.

The connection hose 167 connects the outlet port of the first operation cylinder 161 and the first supply port 165a of the drive cylinder 165, and the outlet port and the drive cylinder 165 of the second operation cylinder 163. By connecting the second supply port 165b of the first working cylinder 161 and the driving cylinder 165, it is possible to transfer the working fluid between the second working cylinder 163 and the driving cylinder 165.

In addition, the bottom shielding plate 157 may be printed such that the voltage, current, management number, etc. for the switchgear for distribution, so that the information on the switchgear in the lower portion of the pole.

Hereinafter, the operation and effects between the components will be described.

In the operation display of the switchgear according to the embodiment of the present invention, the switching mechanism 115 is installed inside the opening and closing body 110, and the lead wire and the lead wire are connected to the switching mechanism 115.

Then, the rotary shaft 117 which is operated to connect or disconnect the electricity of the switching mechanism 115 is installed to protrude to one side of the opening and closing body 110, the rotary shaft 117 for the manual operation of the switching mechanism 115 Manual operation bar 120 is installed.

The side operation display unit 130 is positioned on the side where the manual operation bar 120 is installed, and one side of the manual operation bar 120 is displayed with a side opening display 131, and the other side of the manual operation bar 120 is located on the side. The closing indication 133 is displayed.

In addition, the manual operation bar 120 has the center of the rotation axis 117 is coupled to the guide portion 121 indicating one of the side opening display 131 and the side closing display 133 according to the rotation of the manual operation bar 120. It may be formed to protrude downward from the portion.

The side opening mark 131 may be installed in the side guide part 135 formed at the position where the side opening mark 131 is positioned so that the opening cover plate 140 can be slidably moved up and down. In the portion where the display 133 is positioned, the closing shield plate 145 may be installed on the side guide part 135 formed at the portion where the side closing display 133 is positioned to be slidable up and down.

And, the open screen plate 140 is connected to the end of the manual control bar 120 is located at the top by a cover plate connecting rod 147, the closing cover plate 145 is a manual control bar 120 located at the top The other end of the connecting plate is connected by a connecting plate (147).

In addition, a discharge valve 170 for discharging the insulating gas filled in the opening and closing body 110 is installed at a portion where the side opening display 131 is located.

At this time, the discharge valve 170 may be installed so as not to protrude to the outer surface of the side opening display (131).

The bottom operation display unit 150 is located at the bottom of the opening and closing body 110, and the bottom operation display unit 150 is displayed at the bottom open display 151 on one side of the opening and closing body 110 about the rotation shaft 117. On the other side of the opening and closing main body 110, the bottom closed display 153 is displayed.

In addition, the bottom operation indicator 151 has a bottom guide plate 157 so as to be slidably movable on the bottom of the opening and closing body 110 so as to selectively cover the bottom opening display 151 and the bottom closing display 153. It is fitted to 155.

On the other hand, the bottom cover plate 157 is installed so that the bottom cover plate 157 sliding movement in conjunction with the movement of the manual operation bar 120 by the bottom drive unit (160).

The bottom driving unit 160 has a first operation cylinder 161 is installed in the position where the side opening display 131 is located, a second operation cylinder 163 is installed in the position where the side closing display 133 is located, The axis of the first piston 162 of the first operating cylinder 161 is positioned to be pressed by one side of the manual operation bar 120 located above, and the second piston 164 of the second operating cylinder 163 The shaft is positioned to be pressed by the other side of the manual operation bar 120 located at the top.

 In addition, a bottom shielding plate 157 is installed on the driving piston 166 of the driving cylinder 165 on the bottom of the opening and closing body 110, and the first supply port 165a and the first operation cylinder of the driving cylinder 165 are provided. Outlet 161a of the 161, and the second supply port 165b of the drive cylinder 165 and the outlet inlet 163a of the second operation cylinder 163 are connected to each other by a connection hose 167, The working fluid of the liver can move.

The switchgear operation display according to the embodiment of the present invention configured as described above is a rotary shaft connected to the manual operation bar 120 when the manual operation bar 120 is operated so that the switching mechanism 115 performs a closing operation for connecting electricity. 117 is rotated so that the switching mechanism 115 electrically connects the lead wire and the lead wire.

Meanwhile, when the manual operation bar 120 is rotated to perform the closing operation, the guide 121 of the manual operation bar 120 points to the side closing display 133 and at the same time the side opening display of the manual operation bar 120 ( As the portion where the 131 is positioned is moved downward, the opening cover plate 140 is moved downward, and the side opening display 131 is covered by the opening cover plate 140 so that the side opening display 131 is not visible from the outside.

Then, the portion where the side closing display 133 of the manual operation bar 120 is located is moved upward while closing the closing screen 145, the side closing display 133 by the closing screen 145 to the outside. It is revealed to be visible, but only the side closing display 133 is displayed from the outside, so that the operating state of the switching mechanism 115 can be clearly understood without any confusion.

In addition, when the manual operation bar 120 is rotated to perform the closing operation, the axis of the first piston 162 of the first operation cylinder 161 in which the side opening indication 131 is positioned is pressed, and the first operation cylinder The working fluid filled in the 161 is transferred to the driving cylinder 165 through the connection hose 167, and the working fluid delivered to the driving cylinder 165 presses the driving piston 166 to the driving piston 166. The bottom cover plate 157 is moved to a portion where the bottom opening mark 151 is located so that the bottom opening mark 151 is hidden from the outside.

On the other hand, in the state in which the manual operation bar 120 is rotated to perform the closing operation by accidentally operating the manual operation bar 120 by the operator to prevent the switching mechanism 115 of the bottom cover plate 157 The pin fixing part 141 and the pin pin 149 in the form of penetrating through the guide hole is fixed.

When the safety pins 149 are coupled in this way, even if the manual operation bar 120 is to be operated, the opening cover plate 140 connected to the cover plate connector 147 on the manual operation bar 120 has a safety pin at the side operation display unit 130. Fixed by 149 can not be sliding movement can warn the worker to operate arbitrarily to prevent the manual operation bar 120 to easily rotate.

Of course, the safety pin 149 may perform the opening operation while the safety pin 149 is broken by the operating force of the switching mechanism 115 when the opening operation is automatically performed according to the load of the switching mechanism 115.

When the closing operation is performed by the manual operation bar 120, when the opening and closing main body 110 is viewed from the outside, the side opening display 131 and the bottom opening display 151 are opened and closed. Since it is not hidden by the plate 157 and only the side closing display 133 and the bottom closing display 153 are visible, the operating state of the switching mechanism 115 can be clearly understood without confusion.

On the other hand, when the manual operation bar 120 is rotated to open the switching mechanism 115 to open the lead wire and the lead wire, the safety pin 149 fixing the open screen plate 140 is removed, and the manual operation bar ( 120 is rotated in the opposite direction that it was rotated for the closing operation.

When the manual operation bar 120 is rotated to open, one end of the manual operation bar 120 on which the side opening indicator 131 is positioned is upward, and the opening cover plate 140 is upward, and the side that is covered by the opening cover plate. The opening display 131 is exposed to the outside.

Then, the other end of the manual operation bar 120 where the side closing display 133 is located is downwardly closed and the closing screen 145 is downward, and the side closing display 133 that has been exposed to the outside is closed on the closing screen 145. Obscured by

At this time, when the side opening display 131 is exposed to the outside by the opening shield plate 140, the discharge valve 170 is also exposed to release the insulating gas filled in the opening and closing body 110 to the outside in the disconnected state. Safe repairs or checks can be performed.

At the same time, when the manual operation bar 120 is rotated to open, the shaft of the second piston 164 of the second operation cylinder 163 installed at the portion where the side closing indication 133 is positioned is joined, and the second operation is performed. As the working fluid charged in the cylinder 163 is supplied to the second supply port 165b of the driving cylinder 165 through the connection hose 167, the driving piston 166 of the driving cylinder 165 is pressurized to open the bottom surface. The bottom obstruction plate 157 that covers the 151 is moved to cover the bottom closure indication 153.

Accordingly, when the opening operation is performed by the manual operation bar 120, when the opening and closing body 110 is viewed from the outside, the side closing display 133 and the bottom closing display 153 are the closing screen 145 and the bottom surface. Since only the side opening display 131 and the bottom opening display 151 are visible, the operation state of the switching mechanism 115 can be clearly seen without crosstalk.

Therefore, the switchgear operation display according to an embodiment of the present invention is to be visible from the outside of the open display and the closed display only when the operation of the manual operation bar 120, the guide in a state in which both the open display and the closed display is exposed. By displaying the operation state by only 121, it is possible to prevent the occurrence of a safety accident such as a malfunction and an electric shock due to an error in the operation state.

In addition, the bottom cover plate 157 is slid by the bottom driving unit 160 when the manual operation bar 120 is operated so that only one of the bottom opening display 151 and the bottom closing display 153 is visible, thereby making the pole pole. The operating state of the switching mechanism 115 can be easily grasped without going up and down.

In addition, the bottom shielding plate 157 is configured to operate in accordance with the movement of the working fluid by the first working cylinder 161, the second working cylinder 163, and the driving cylinder 165, whereby the bottom operating display unit 150 is operated. Even if the side operation display unit 130 is spaced apart from the bottom shielding plate 157 can be easily driven in conjunction with the manual operation bar (120).

Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the present invention is easily changed and equivalent to those of ordinary skill in the art to which the present invention pertains. Includes all changes and modifications to the scope of the matter.

100: switchgear operation indicator for power distribution 110: opening and closing body
115: switching mechanism 117: rotating shaft
120: manual operation bar 121: instructions
130: side operation indicator 131: side open indication
133: side closed indication 135: side guide portion
140: opening screen 141: pingo government
145: closing cover plate 147: cover plate connecting plate
149: safety pin 150: bottom operation indicator
151: bottom open indication 153: bottom closed indication
155: bottom guide part 157: bottom shielding plate
160: bottom driving unit 161: first operation cylinder
162: first piston 163: second working cylinder
164: second piston 165: drive cylinder
166: driving piston 167: connecting hose
170: discharge valve

Claims (4)

Switching mechanism for electrically connecting or disconnecting the distribution line according to the rotation of the rotary shaft,
Opening and closing body for receiving the switching mechanism therein,
Is coupled to the rotating shaft exposed to either side of the opening and closing body to rotate the rotating shaft to perform the closing operation for connecting the power supply or the switching mechanism disconnects the power source, the rotating shaft is coupled to the center Manual operation bar,
The side closing display is formed on the side of the opening and closing body in which the manual operation bar is located and is displayed at the closing operation position of the switching mechanism according to the rotation angle of the rotating shaft and the side opening display is displayed at the opening operation position of the switching mechanism. Side operation indicator portion, including
Instructions for protruding downward from the center of the manual operation bar to identify the closing and opening of the switching mechanism according to the rotated angle of the manual operation bar to indicate any one of closing and opening of the side operation indicator;
An opening cover plate installed to be slidably movable up and down in a portion of the side operation display unit in which the side opening display is positioned to hide or show the side opening display;
A closing shield plate installed to be slidably moved up and down in a portion of the side operation display unit in which the side closing display is positioned to cover or show the side closing display;
The opening cover plate is connected to one side of the manual control bar such that only one of the side open display and the side close display is exposed by sliding the open cover plate and the closed cover plate in opposition to the rotation of the manual control bar. A shielding plate connecting rod for connecting the closing shielding plate to the other side of the manual operation bar, and
And a safety pin to temporarily fix the opening cover plate to the side operation display part while the opening cover plate covers the side opening mark to prevent the opening operation of the switching mechanism by easily rotating the manual operation bar.
The safety pin is formed of synthetic resin to be easily broken and operated during the automatic operation of the switching mechanism,
A bottom operation display unit for displaying a bottom open indication and a bottom closed indication on the bottom of the opening and closing body to grasp the opening and closing operation of the switching mechanism while the opening and closing body is installed on the pole;
A bottom shielding plate installed to be slidably movable on the bottom of the opening and closing body so that only one of the bottom open indication and the bottom closed indication is selectively visible;
And a bottom driving part configured to slide the bottom cover plate according to the operation of the manual operation bar so that the bottom cover plate slides so as to cover only one of the bottom open display and the bottom closed display. Indicator. The method of claim 1,
When the opening screen covers the side opening mark, it is covered together and when the opening screen shows the side opening mark, it is shown together to release the insulating gas charged in the opening and closing body only in the operating state of the switching mechanism. And a discharge valve installed at a portion where an opening display is formed, the discharge valve releasing the insulating gas filled in the opening and closing body. delete The method of claim 1,
The bottom driving part
A first operating cylinder positioned at one side of the manual operation bar and having a first piston for moving in and out of the working fluid by moving together according to the operation of the manual operation bar;
A second operation cylinder positioned on the other side of the manual operation bar and having a second piston which moves together according to the operation of the manual operation bar to introduce and discharge the working fluid;
A driving cylinder having a driving piston provided with a working fluid flowing in and out of the first working cylinder and the second working cylinder by the first piston and the second piston, and sliding the bottom shielding plate;
And a connecting hose connecting the first working cylinder and the second working cylinder and the driving cylinder to introduce or discharge working fluids from each other.

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