CN106449233B - The three axis interlocks and its operating method of high voltage load switch - Google Patents
The three axis interlocks and its operating method of high voltage load switch Download PDFInfo
- Publication number
- CN106449233B CN106449233B CN201611007614.8A CN201611007614A CN106449233B CN 106449233 B CN106449233 B CN 106449233B CN 201611007614 A CN201611007614 A CN 201611007614A CN 106449233 B CN106449233 B CN 106449233B
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- interlock plate
- axis
- handle hole
- actuating
- return unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/265—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention discloses the three axis interlocks and its operating method of a kind of high voltage load switch, wherein three axis interlocks of high voltage load switch, including control box and operating mechanism, operating mechanism has the first actuating axis, second actuating axis and the 3rd actuating axis, control box has an operation panel, there is the first handle hole from top to bottom set gradually on operation panel, second handle hole and the 3rd handle hole, first actuating axis, second actuating axis and the 3rd actuating axis are extended respectively to close to the first handle hole, the position of second handle hole and the 3rd handle hole, it is characterized in that, further include main interlocking mechanism, main interlocking mechanism includes the first return unit, first interlock plate, second return unit, second interlock plate, 3rd interlock plate and the 3rd return unit.The present invention realizes five anti-interlockings of three axis using main interlocking mechanism, and mechanism is all linked with one another, avoids that maloperation occurs, easy to operate, is moved up and down by interlock plate and blocks the mechanical system of handle hole to realize interlocking, simple in structure.
Description
Technical field
The present invention relates to the technical field of electrical equipment more particularly to a kind of three axis interlocks of high voltage load switch and
Its operating method.
Background technology
Three axis interlock securities of high voltage load switch are poor in the prior art, and maloperation easily occurs, is easy to cause
The generation of security incident, complicated in addition, manufacture is low with efficiency of assembling.
The content of the invention
The present invention provides a kind of three axis interlocks of safe and reliable, simple in structure high voltage load switch.
In order to solve the above technical problems, the present invention provides following technical scheme：
Three axis interlocks of high voltage load switch, including control box and the operating mechanism being arranged in control box, operation
There is the first actuating axis of actuating disconnecting switch division, the second actuating axis of actuating on-load switch division and actuating ground connection to open for mechanism
Close the 3rd actuating axis of division, control box has an operation panel, and cabinet door is equipped on the outside of operation panel, have on operation panel by
The first handle hole, the second handle hole and the 3rd handle hole set gradually under above, the first actuating axis, the second actuating axis and the 3rd
Actuating axis extends respectively to, close to the position of the first handle hole, the second handle hole and the 3rd handle hole, further include main interlocking mechanism,
It is multiple that main interlocking mechanism includes the first return unit, the first interlock plate, the second return unit, the second interlock plate, the 3rd interlock plate and the 3rd
Position part；
The upper end of first return unit is fixed on operation panel, and the lower end of the first return unit is fixedly connected on the first interlock plate
On, the first return unit is moved up by its first interlock plate of reset force stretchy, and the first interlock plate is made to get out of the way the first handle hole；The
Two actuating axis are fixedly connected with the second actuator close to one end of operation panel, by rotating the second actuating axis, the second actuator
The reset force of the first return unit can be overcome so that the first interlock plate to be driven to move down, and the first interlock plate can be made to block the first handle hole；
The upper end of second return unit is fixed on operation panel, and the lower end of the second return unit is fixedly connected on the second interlock plate
On, the second return unit is moved up by its second interlock plate of reset force stretchy, and the second interlock plate is made to block the second handle hole, together
When the second interlock plate is made to get out of the way the 3rd handle hole；First actuating axis is fixedly connected with the first actuating close to one end of operation panel
Part, by rotating the first actuating axis, the first actuator can overcome the reset force of the second return unit to push the second interlock plate, and make
Second interlock plate gets out of the way the second handle hole, while the second interlock plate is made to block the 3rd handle hole；
3rd actuating axis is connected close to one end of operation panel by actuating component with the 3rd interlock plate, the 3rd return unit
Lower end is fixedly connected on operation panel, and the upper end of the 3rd return unit is fixedly connected on the 3rd interlock plate, and the 3rd return unit relies on
Its 3rd interlock plate of reset force stretchy moves down, and makes to get out of the way the first handle hole at the top of the 3rd interlock plate, while actuating component
The cabinet door on the outside of operation panel can be locked；Actuating component can also overcome the reset force of the 3rd return unit to drive on the 3rd interlock plate
It moves, and makes to block the first handle hole at the top of the 3rd interlock plate, while actuating component can carry out the cabinet door on the outside of operation panel
Unlock.
Further, on the inner wall of the vertically arranged operation panel of first interlock plate, one at the top of the first interlock plate
Side is equipped with the notch of a cooperation corresponding with the first handle hole neighboring, and the top down of the notch extends to form first
Shield, the peripheral side that the first interlock plate of the first return unit stretchy moves up and the notch is made to be wrapped in the first handle hole, together
When the first shield be also moved to the extension of the first handle hole scope it is outer to get out of the way the first handle hole, second actuator can drive
First interlock plate moves down and the first shield at the top of notch is made to be moved in the range of the extension of the first handle hole, so that the first shield
Block the first handle hole.
Further, vertically it is equipped with the first bar-shaped trough on first interlock plate, the bottom of the first bar-shaped trough is through one the
One fixed pin, the first fixed pin are fixed on the inner wall of the operation panel, first return unit be a resetting spring, first
The upper end of return unit is fixedly connected on the first fixed pin, and the lower end of the first return unit is fixedly connected on the first interlock plate, and first
The bottom of interlock plate extends inwardly to form first boss, and second actuator is a fan-shaped connecting lever, and the second actuator can be pressed against
In first boss and the first interlock plate is driven to move down.
Further, second interlock plate has the starting stave and the second riser that link together, starting stave and
Second riser is setting up and down, and starting stave is located at the one side of second handle hole, and starting stave is to close to the second handle hole
One side extends to form the second shield, and the second riser is arranged on the top of the 3rd handle hole, and the second riser bottom extends downwardly
The 3rd shield is formed, the second interlock plate of the second return unit stretchy moves up, and the second shield is made to be moved to the second handle hole
In the range of extension, so that the second shield blocks the second handle hole, while the 3rd shield can be moved to the extension of the 3rd handle hole
Outside scope, so that the 3rd shield gets out of the way the 3rd handle hole；First actuator can push the second interlock plate, and make the second shield
It is moved to outside the scope of the second handle hole extension, so that the second shield gets out of the way the second handle hole, while the 3rd shield can be moved to
In the range of the extension of 3rd handle hole, so that the 3rd shield blocks the 3rd handle hole.
Further, vertically it is equipped with the second bar-shaped trough on second interlock plate, the bottom of the second bar-shaped trough is through one the
Two fixed pins, the second fixed pin are fixed on the inner wall of the operation panel, second return unit be a resetting spring, second
The upper end of return unit is fixedly connected on the second fixed pin, and the lower end of the second return unit is fixedly connected on the second interlock plate.
Further, the starting stave upwardly extends to form a L shaped plate, and the upper end of L shaped plate extends inwardly to form second
Boss, first actuator are a rod-shaped connecting lever, and the first actuator can be pressed against in second boss and drive the second interlock plate
It moves down.
Further, the actuating component includes door bolt and chevron, and door bolt is horizontally disposed with, and door bolt has first end and the
Two ends, the first end of door bolt are fixedly connected on the 3rd actuating axis, are vertically equipped with the 4th on door bolt between its both ends
Bar-shaped trough is equipped with axis pin in Article 4 shape slot, and axis pin can be moved up and down along Article 4 shape slot, and chevron has first end
And the second end, first end are located at the lower section of the second end, are articulated in the middle part of chevron on the inner wall of the operation panel, V
The first end of shape part is articulated on the axis pin, and the second end of chevron is resisted against the lower end of the 3rd interlock plate, and described
Three actuating axis can drive door bolt to move back and forth compared with the 3rd actuating axis, and pass through door bolt and lock the cabinet door or to this
Cabinet door is unlocked, and the axis pin on door bolt in Article 4 shape slot can drive the first end of chevron to be rotated, and drive V-arrangement
The second end of part moves up and down.
Further, vertically it is equipped with Article 3 shape slot on the 3rd interlock plate, the top of Article 3 shape slot is through one the
Three fixed pins, the 3rd fixed pin are fixed on the inner wall of the operation panel, the 3rd return unit be a resetting spring, the 3rd
The lower end of return unit is fixedly connected on the 3rd fixed pin, and the upper end of the 3rd return unit is fixedly connected on the 3rd interlock plate.
Further, rack and auxiliary interlocking gear are further included, rack has the first side and the second side, aids in interlocking gear
The first side and the second side of rack are separately positioned on the control box, being pivoted with control successively from top to bottom in rack keeps apart
The isolation axis of division is closed, control the load axis of on-load switch division and controls the grounding shaft of earthing switch division, isolation axis, load
The first end of axis and grounding shaft all extend in control box and respectively with the first actuating axis, the second actuating axis and the 3rd actuating
Axis connection, the second end of isolation axis, load axis and grounding shaft all extend to the second side of rack, and auxiliary interlocking gear includes difference
It is fixedly connected on isolation axis, the first interlocking arm, the second interlocking arm and the 4th interlocking arm of load axis and grounding shaft second end, first
Up and down against setting and can be carried out at the same time rotation, auxiliary interlocking gear, which further includes, is articulated in the machine for interlocking arm and the second interlocking arm
The 3rd interlocking arm and escapement of frame the second side, the 3rd interlocking arm are arranged between the second interlocking arm and the 4th interlocking arm, and second
Hammerlock is connected with the 3rd interlocking arm by blocking lever, and escapement is arranged between the 3rd interlocking arm and the 4th interlocking arm, and first
The first locating slot, the second positioning are respectively equipped on interlocking arm, the second interlocking arm, the 3rd interlocking arm and the 4th interlocking arm neighboring
Slot, the 3rd locating slot and the 4th locating slot；
When turning on load, grounding shaft can drive the 4th locating slot of the 4th interlocking arm to turn to position upward, and first
First locating slot of hammerlock can turn to the position to fasten with the neighboring of the second interlocking arm, and the second interlocking arm can pass through connection
Locking bar drives the 3rd interlocking arm to be rotated, and the neighboring of the 3rd interlocking arm can push escapement and make the lower rotation of escapement extremely
The position to fasten with the 4th locating slot of the 4th interlocking arm；
When disconnecting load, the second interlocking arm can drive the 3rd interlocking arm to be rotated by blocking lever, and make the 3rd interlocking
3rd locating slot of arm turns to position directed downwardly, and the second locating slot of the second interlocking arm can turn to and the first interlocking arm periphery
The position that edge fastens, the neighboring of the 4th interlocking arm can push up escapement and make to turn at the top of escapement and the 3rd
The position that 3rd locating slot of interlocking arm fastens.
Three axis interlocks of high voltage load switch of the present invention realize five anti-interlockings of three axis, mechanism using main interlocking mechanism
It is all linked with one another, it avoids that maloperation occurs, easy to operate, securely and reliably, main interlocking mechanism is moved up and down by interlock plate blocks behaviour
Make the mechanical system in hole to realize interlocking, simple in structure, at low cost convenient for manufacturing and assembling, production efficiency is high.
The present invention also provides a kind of operation sides of three axis interlocks of safe and reliable, easy to operate high voltage load switch
Method.
In order to solve the above technical problems, the present invention provides following technical scheme：
The operating method of three axis interlocks of high voltage load switch, when carrying out power operation：(1) by rotating second
Actuating axis actuating on-load switch carries out separating brake, and the first return unit moves up by its first interlock plate of reset force stretchy, and makes the
One interlock plate gets out of the way the first handle hole；(2) by rotate the first actuating axis drive disconnecting switch carry out separating brake, the second return unit according to
It is moved up by its second interlock plate of reset force stretchy, and the second interlock plate is made to block the second handle hole, while make the second interlock plate
Get out of the way the 3rd handle hole；(3) by rotating the 3rd actuating axis earthing switch is driven to carry out combined floodgate ground connection, actuating component can drive the
Three interlock plates move up, and the 3rd interlock plate is made to block the first handle hole, while the door bolt in actuating component is to close to the 3rd actuating
The direction of axis is mobile and unlocks cabinet door, and then can open cabinet door；
When carrying out power transmission operation：(1) cabinet door is shut, by rotating the 3rd actuating axis earthing switch is driven to carry out separating brake,
3rd return unit is moved down by its 3rd interlock plate of reset force stretchy, and the 3rd interlock plate is made to get out of the way the first handle hole, simultaneously
Door bolt in actuating component is mobile to the direction away from the 3rd actuating axis and locks cabinet door；(2) by rotating the first actuating axis band
Dynamic disconnecting switch is closed a floodgate, and the first actuator can overcome the reset force of the second return unit to push the second interlock plate, and makes
Two interlock plates get out of the way the second handle hole, while the second interlock plate is made to block the 3rd handle hole；(3) grasped by rotating the second actuating axis
Dynamic load switch closes a floodgate, and the second actuator can overcome the reset force of the first return unit so that the first interlock plate to be driven to move down, and
The first interlock plate can be made to block the first handle hole.
The present invention is further ensured that job safety, is avoided by the teamwork of auxiliary interlock apparatus mechanism and main interlocking mechanism
Maloperation, can play the role of dual fail-safe, and safety and reliability are high.
Description of the drawings
Fig. 1 is the structure chart of three axis interlocks of high voltage load switch；
Fig. 2 is the cut-away view of the control box in three axis interlocks of high voltage load switch；
Fig. 3 is the structure diagram of three axis interlock energization working condition Xia Zhu interlocking mechanisms of high voltage load switch；
Fig. 4 is the structural representation of three another angles of axis interlock energization working condition Xia Zhu interlocking mechanisms of on-load switch
Figure；
Fig. 5 is the structure diagram of the three axis interlocks power-off service mode Xia Zhu interlocking mechanisms of high voltage load switch；
Fig. 6 is the structural representation of another angle of three axis interlocks power-off service mode Xia Zhu interlocking mechanisms of on-load switch
Figure；
Fig. 7 be high voltage load switch three axis interlocks in the first interlock plate structure chart；
Fig. 8 be high voltage load switch three axis interlocks in the second interlock plate structure chart；
Fig. 9 is the structure chart of three another angles of axis interlock of high voltage load switch；
Figure 10 be high voltage load switch three axis interlocks in auxiliary interlock apparatus mechanism structure chart；
Figure 11 be high voltage load switch three axis interlocks in another state of auxiliary interlock apparatus mechanism structure chart.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts belong to the scope of protection of the invention.
In the description of the technical program, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope, the invention will be further described below in conjunction with the accompanying drawings.
Three axis interlocks of high voltage load switch as depicted in figs. 1 and 2, including control box 10 and are arranged on control box
Operating mechanism in 10, operating mechanism have the first actuating axis 11 of actuating disconnecting switch division, actuating on-load switch division
Second actuating axis 12 and the 3rd actuating axis 13 of actuating earthing switch division, control box 10 have an operation panel 14, operating surface
The outside of plate 14 is equipped with cabinet door (not shown), have on operation panel 14 from top to bottom set gradually the first handle hole 141,
Second handle hole 142 and the 3rd handle hole 143, the first actuating axis 11, the second actuating axis 12 and the 3rd actuating axis 13 each extend over
To the position of close first handle hole 141, the second handle hole 142 and the 3rd handle hole 143, main interlocking mechanism is further included, it is main
Latch mechanism includes the first return unit 15, the first interlock plate 16, the second return unit 17, the second interlock plate 18,19 and of the 3rd interlock plate
3rd return unit 20；
As depicted in figs. 1 and 2, the upper end of the first return unit 15 is fixed on operation panel 14, under the first return unit 15
End is fixedly connected on the first interlock plate 16, and the first return unit 15 is moved up by its first interlock plate of reset force stretchy 16, and
The first interlock plate 16 is made to get out of the way the first handle hole 141；Second actuating axis 12 is fixedly connected with close to one end of operation panel 14
Two actuators 121, by rotating the second actuating axis 12, the second actuator 121 can overcome the reset force of the first return unit 15 with band
Dynamic first interlock plate 16 moves down, and the first interlock plate 16 can be made to block the first handle hole 141；
As depicted in figs. 1 and 2, the upper end of the second return unit 17 is fixed on operation panel 14, under the second return unit 17
End is fixedly connected on the second interlock plate 18, and the second return unit 17 is moved up by its second interlock plate of reset force stretchy 18, and
The second interlock plate 18 is made to block the second handle hole 142, while the second interlock plate 18 is made to get out of the way the 3rd handle hole 143；First actuating
Axis 11 is fixedly connected with the first actuator 111 close to one end of operation panel 14, by rotating the first actuating axis 11, the first actuating
Part 111 can overcome the reset force of the second return unit 17 to push the second interlock plate 18, and the second interlock plate 18 is made to get out of the way the second behaviour
Make hole 142, while the second interlock plate 18 is made to block the 3rd handle hole 143；
As depicted in figs. 1 and 2, the 3rd actuating axis 13 is interlocked close to one end of operation panel 14 by actuating component and the 3rd
Plate 19 connects, and the lower end of the 3rd return unit 20 is fixedly connected on operation panel 14, and the upper end of the 3rd return unit 20 is fixedly connected
On 3rd interlock plate 19, the 3rd return unit 20 is moved down by its 3rd interlock plate 19 of reset force stretchy, and makes the 3rd interlock plate
19 top gets out of the way the first handle hole 141, while actuating component can lock the cabinet door in 14 outside of operation panel；Actuating component can also
The reset force of the 3rd return unit 20 is overcome so that the 3rd interlock plate 19 to be driven to move up, and the top of the 3rd interlock plate 19 is made to block first
Handle hole 141, while actuating component can be unlocked the cabinet door in 14 outside of operation panel.
Specifically, as shown in Figure 2, Figure 3 and Figure 4, when carrying out power operation：(1) grasped by rotating the second actuating axis 12
Dynamic load switch carries out separating brake, and the first return unit 15 is moved up by its first interlock plate of reset force stretchy 16, and makes first
Jam plate 16 gets out of the way the first handle hole 141；(2) by rotating the first actuating axis 11 disconnecting switch is driven to carry out separating brake, second resets
Part 17 is moved up by its second interlock plate of reset force stretchy 18, and the second interlock plate 18 is made to block the second handle hole 142, simultaneously
The second interlock plate 18 is made to get out of the way the 3rd handle hole 143；(3) by the 3rd actuating axis 13 of rotation earthing switch is driven to carry out combined floodgate to connect
Ground, actuating component can drive the 3rd interlock plate 19 to move up, and the 3rd interlock plate 19 is made to block the first handle hole 141, while actuating
Component is unlocked cabinet door, and then can open cabinet door；
Specifically, as shown in Figure 2, Figure 5 and Figure 6, when carrying out power transmission operation：(1) cabinet door is shut, by rotating the 3rd behaviour
Moving axis 13 drives earthing switch to carry out separating brake, and the 3rd return unit 20 is moved down by its 3rd interlock plate 19 of reset force stretchy, and
The 3rd interlock plate 19 is made to get out of the way the first handle hole 141, while actuating component can lock cabinet door；(2) by rotating the first actuating axis
11 drive disconnecting switch are closed a floodgate, and the first actuator 111 can overcome the reset force of the second return unit 17 to push the second interlocking
Plate 18, and the second interlock plate 18 is made to get out of the way the second handle hole 142, while the second interlock plate 18 is made to block the 3rd handle hole 143；
(3) closed a floodgate by rotating 12 actuating on-load switch of the second actuating axis, the second actuator 121 can overcome the first return unit 15
Reset force can make the first interlock plate 16 block the first handle hole 141 so that the first interlock plate 16 to be driven to move down.
Three axis interlocks of the present embodiment high voltage load switch realize five anti-interlockings of three axis, machine using main interlocking mechanism
Structure is all linked with one another, avoids that maloperation occurs, easy to operate, securely and reliably, main interlocking mechanism is moved up and down by interlock plate blocks
The mechanical system of handle hole interlocks to realize, simple in structure, at low cost convenient for manufacturing and assembling, and production efficiency is high.
On the basis of above-described embodiment, it is preferred that as shown in Fig. 7 and Fig. 5, the 16 vertically arranged institute of the first interlock plate
On the inner wall for stating operation panel 14,16 top side of the first interlock plate is equipped with one and the 141 neighboring phase of the first handle hole
The notch 161 of corresponding matching, the top down of the notch 161 extend to form the first shield 162, with reference to shown in Fig. 4, described first
The peripheral side that 15 the first interlock plate of stretchy 16 of return unit moves up and the notch 161 is made to be wrapped in the first handle hole 141, while the
One shield 162 is also moved to outside the scope of the first handle hole 141 extension to get out of the way the first handle hole 141, with reference to shown in Fig. 6, institute
Stating the second actuator 121 can drive the first interlock plate 16 to move down and first shield 162 at 161 top of notch is made to be moved to the first behaviour
In the range of making the extension of hole 141, so that the first shield 162 blocks the first handle hole 141.
On the basis of above-described embodiment, it is preferred that as shown in Fig. 7 and Fig. 5, be vertically equipped on first interlock plate 16
First bar-shaped trough 163, through one first fixed pin 164, the first fixed pin 164 is fixed on described for the bottom of the first bar-shaped trough 163
On the inner wall of operation panel 14, first return unit 15 is a resetting spring, and the upper end of the first return unit 15 is fixedly connected on
On first fixed pin 164, the lower end of the first return unit 15 is fixedly connected on the first interlock plate 16, the bottom of the first interlock plate 16 to
First boss 165 is inside extended to form, second actuator 121 is a fan-shaped connecting lever, and the second actuator 121 can be pressed against first
On boss 165 and the first interlock plate 16 is driven to move down.
On the basis of above-described embodiment, it is preferred that as shown in Fig. 8 and Fig. 3~Fig. 6, second interlock plate 18 has
181 and second riser 182 of starting stave to link together, 181 and second riser 182 of starting stave is setting up and down, and first is perpendicular
Plate 181 is located at the one side of second handle hole 142, and starting stave 181 is extended to form to the one side close to the second handle hole 142
Second shield 1811, the second riser 182 are arranged on the top of the 3rd handle hole 143, and 182 bottom of the second riser extends downwardly
The 3rd shield 1821 is formed, 17 second interlock plate of stretchy 18 of the second return unit moves up, and moves the second shield 1811
In the range of extending to the second handle hole 142, so that the second shield 1811 blocks the second handle hole 142, while the 3rd shield
1821 can be moved to outside the scope of the 3rd handle hole 143 extension, so that the 3rd shield 1821 gets out of the way the 3rd handle hole 143；It is described
First actuator 111 can push the second interlock plate 18, and the second shield 1811 is made to be moved to the scope that the second handle hole 142 extends
Outside, so that the second shield 1811 gets out of the way the second handle hole 142, while the 3rd shield 1821 can be moved to the 3rd handle hole 143 and prolong
In the range of stretching, so that the 3rd shield 1821 blocks the 3rd handle hole 143.
On the basis of above-described embodiment, it is preferred that as shown in Fig. 8 and Fig. 3~Fig. 6, erected on second interlock plate 18
To equipped with the second bar-shaped trough 183, through one second fixed pin 184, the second fixed pin 184 is fixed for the bottom of the second bar-shaped trough 183
On the inner wall of the operation panel 14, second return unit 17 is a resetting spring, and the upper end of the second return unit 17 is fixed
It is connected on the second fixed pin 184, the lower end of the second return unit 17 is fixedly connected on the second interlock plate 18.
On the basis of above-described embodiment, it is preferred that as shown in Fig. 8 and Fig. 3~Fig. 6, the starting stave 181 prolongs upwards
It stretches to form a L shaped plate 185, the upper end of L shaped plate 185 extends inwardly to form second boss 186, and first actuator 111 is one
Rod-shaped connecting lever, the first actuator 111 can be pressed against in second boss 186 and the second interlock plate 18 driven to move down.
On the basis of above-described embodiment, it is preferred that as shown in figure 5, the actuating component includes door bolt 21 and chevron
22, door bolt 21 is horizontally disposed, and door bolt 21 has a first end and a second end, and the first end of door bolt 21 is fixedly connected on the 3rd behaviour
On moving axis 13, Article 4 shape slot 211 is vertically equipped on door bolt 21 between its both ends, axis pin is equipped in Article 4 shape slot 211
23, axis pin 23 can be moved up and down along Article 4 shape slot 211, and chevron 22 has first end and the second end, first end
Positioned at the lower section of the second end, the middle part of chevron 22 is articulated on the inner wall of the operation panel 14, and the of chevron 22
One end is articulated on the axis pin 23, and the second end of chevron 22 is resisted against the lower end of the 3rd interlock plate 19, and the described 3rd
Actuating axis 13 can drive door bolt 21 to move back and forth compared with the 3rd actuating axis 13, and pass through door bolt 21 lock the cabinet door or
Person is unlocked the cabinet door, specifically, the cabinet door (not shown) can be equipped with locating part (not shown), the 3rd
Actuating axis 13 can drive door bolt 21 mobile to the direction away from the 3rd actuating axis and then block the locating part in cabinet door, so as to
Cabinet door is locked, the 3rd actuating axis 13 can drive door bolt 21 mobile to the direction by the 3rd actuating axis and then get out of the way the /V in cabinet door
Part so as to be unlocked to cabinet door, certainly, can also set limit hole in cabinet door, when the 3rd actuating axis 13 drives door bolt
21 move to the direction away from the 3rd actuating axis, and door bolt 21 can be inserted into the limit hole in cabinet door, so as to lock cabinet door, when
3rd actuating axis 13 drives door bolt 21, and to the direction movement by the 3rd actuating axis, door bolt 21 can be moved from the limit hole in cabinet door
Go out, so as to be unlocked to cabinet door.
On the basis of above-described embodiment, it is preferred that as shown in figure 5, being vertically equipped with the 3rd on the 3rd interlock plate 19
Bar-shaped trough 191, through one the 3rd fixed pin 192, the 3rd fixed pin 192 is fixed on the operation at the top of Article 3 shape slot 191
On the inner wall of panel 14, the 3rd return unit 20 is a resetting spring, and the lower end of the 3rd return unit 20 is fixedly connected on the 3rd
On fixed pin 192, the upper end of the 3rd return unit 20 is fixedly connected on the 3rd interlock plate 19.
On the basis of above-described embodiment, it is preferred that as shown in Fig. 9~11, further include rack and auxiliary interlocking gear, machine
Frame has the first side and the second side, and interlocking gear and the control box 10 is aided in be separately positioned on the first side and second of rack
Side is pivoted with the isolation axis 61 of control disconnecting switch division in rack, controls the load of on-load switch division successively from top to bottom
Axis 62 and the grounding shaft 63 of control earthing switch division, the first end of isolation axis 61, load axis 62 and grounding shaft 63 all extend to
It is connected respectively in control box 10 and with the first actuating axis 11, the second actuating axis 12 and the 3rd actuating axis 13, optionally, first
Actuating axis 11 can be connected by gear drive with isolating axis 61, and then by isolating axis disconnecting switch be controlled to carry out division, the
Two actuating axis 12 can be connected on load axis 62, can also share an axis with load axis 62, the 3rd actuating axis 13 can connect
On grounding shaft 63, an axis can also be shared with grounding shaft 63, specific connection mode and actuating mode do not limit, the prior art
It can realize the operating mechanism that actuating isolation axis 61, load axis 62 and grounding shaft 63 act, numerous to list herein, isolation
The second end of axis 61, load axis 62 and grounding shaft 63 all extends to the second side of rack, and auxiliary interlocking gear includes fixing respectively
It is connected to the first interlocking arm 71, the second interlocking arm 72 and the 4th interlocking of isolation 63 second end of axis 61, load axis 62 and grounding shaft
Against setting and can be carried out at the same time rotation about 72, auxiliary interlocking gear also wraps for arm 74, the first interlocking arm 71 and the second interlocking arm
It includes and is articulated in the 3rd interlocking arm 73 of the rack the second side and escapement 75, the 3rd interlocking arm 73 is arranged on 72 He of the second interlocking arm
Between 4th interlocking arm 74, the second interlocking arm 72 is connected with the 3rd interlocking arm 73 by blocking lever 76, and escapement 75 is arranged on
Between 3rd interlocking arm 73 and the 4th interlocking arm 74, the first interlocking arm 71, the second interlocking arm 72, the 3rd interlocking arm 73 and tetrad
The first locating slot 711, the second locating slot 721, the 3rd locating slot 731 and the 4th locating slot are respectively equipped on 74 neighboring of hammerlock
741；
As shown in Fig. 9~11, when turning on load, grounding shaft 63 drives earthing switch to carry out separating brake, and grounding shaft 63 can drive
4th locating slot 741 of the 4th interlocking arm 74 turns to position upward, and isolation axis 61 rotates and disconnecting switch is driven to be closed
Lock, the first locating slot 711 of the first interlocking arm 71 can turn to position (this to fasten with the neighboring of the second interlocking arm 72
Not shown in kind state diagram), so as to which when load turns on, isolation axis 61 cannot carry out on-load separating brake, and load axis 62 rotate simultaneously
On-load switch is driven to close a floodgate, the second interlocking arm 72 can drive the 3rd interlocking arm 73 to be rotated by blocking lever 76, and the 3rd
The neighboring of interlocking arm 73 can push escapement 75 and the lower rotation of escapement 75 is made to be positioned to the 4th of the 4th interlocking arm 74 the
The position that slot 741 fastens, so as to which when load turns on, grounding shaft 63 cannot carry out combined floodgate ground connection；
As shown in Fig. 9~11, when disconnecting load, load axis 62 rotate and on-load switch are driven to carry out separating brake, the second interlocking
Arm 72 can drive the 3rd interlocking arm 73 to be rotated by blocking lever 76, and make 731 turns of the 3rd locating slot of the 3rd interlocking arm 73
It moves to position directed downwardly, isolation axis 61 rotates and disconnecting switch is driven to carry out separating brake, the second locating slot 721 of the second interlocking arm 72
The position to fasten with 71 neighboring of the first interlocking arm can be turned to, so as to when load disconnects, and isolate axis 61 cannot
It closes a floodgate, grounding shaft 63 drives earthing switch to carry out combined floodgate ground connection, and the neighboring of the 4th interlocking arm 74 can push up movable pendulum
Wheel 75 simultaneously makes the top of escapement 75 turn to the position to fasten with the 3rd locating slot 731 of the 3rd interlocking arm 73, so as to load
Switch cannot close a floodgate.
The present embodiment realizes isolation axis, load axis and the mechanical interlocking of grounding shaft by setting auxiliary interlock apparatus mechanism, keeps away
Exempt from maloperation.On the one hand when turning on load (energization), switchgear carries out following act successively：Shut cabinet door --- open to tap
It closes --- closing disconnecting switch --- and closes on-load switch, by setting interlocking mechanism, avoid the disconnecting switch when turning on load
On-load separating brake and earthing switch close a floodgate；On the other hand when disconnecting load (power-off), switchgear carries out following successively
Action：Separating on-load switch --- divides disconnecting switch --- closing earthing switch --- cabinet door to be opened, by setting auxiliary interlock apparatus machine
Structure, earthing switch can close a floodgate, while avoid keeping apart when disconnecting load and close lock and on-load switch closes a floodgate.From
And realize safety interlocking, ensure the safe operation of electrical equipment, securely and reliably.
The present embodiment is further ensured that job safety, is kept away by the teamwork of auxiliary interlock apparatus mechanism and main interlocking mechanism
Exempt from maloperation, dual fail-safe can be played the role of, safety and reliability are high.
Preferably, as shown in Figure 10 and Figure 11, the escapement 75 is articulated in by swing rod 77 in rack, and escapement 75 is articulated in
On swing rod 77.
Preferably, as shown in Figure 10 and Figure 11, the 3rd interlocking arm 73 is coaxially connected with interlocking shaft 78,78 pivot of interlocking shaft
It is connected in the rack.
The operating method of three axis interlocks of high voltage load switch, when carrying out power operation：(1) by rotating second
12 actuating on-load switch of actuating axis carries out separating brake, and the first return unit 15 is moved up by its first interlock plate of reset force stretchy 16,
And the first interlock plate 16 is made to get out of the way the first handle hole 141；(2) by rotating the first actuating axis 11 disconnecting switch is driven to be divided
Lock, the second return unit 17 is moved up by its second interlock plate of reset force stretchy 18, and the second interlock plate 18 is made to block the second behaviour
Make hole 142, while the second interlock plate 18 is made to get out of the way the 3rd handle hole 143；(3) by rotating the 3rd actuating axis 13 ground connection is driven to open
Put row combined floodgate ground connection into, actuating component can drive the 3rd interlock plate 19 to move up, and the 3rd interlock plate 19 is made to block the first handle hole
141, while the door bolt 21 in actuating component is to mobile close to the direction of the 3rd actuating axis 13 and unlock cabinet door, and then can beat
Open cabinet door；
When carrying out power transmission operation：(1) cabinet door is shut, by rotating the 3rd actuating axis 13 earthing switch is driven to be divided
Lock, the 3rd return unit 20 is moved down by its 3rd interlock plate 19 of reset force stretchy, and the 3rd interlock plate 19 is made to get out of the way the first behaviour
Make hole 141, while the door bolt 21 in actuating component is mobile to the direction away from the 3rd actuating axis 13 and locks cabinet door；(2) pass through
Rotating the first actuating axis 11 drives disconnecting switch to close a floodgate, and the first actuator 111 can overcome the reset force of the second return unit 17
To push the second interlock plate 18, and the second interlock plate 18 is made to get out of the way the second handle hole 142, while the second interlock plate 18 is made to block
Three handle holes 143；(3) closed a floodgate by rotating 12 actuating on-load switch of the second actuating axis, the second actuator 121 can overcome the
The reset force of one return unit 15 can make the first interlock plate 16 block the first handle hole 141 so that the first interlock plate 16 to be driven to move down.
Also there is the technique effect in above-described embodiment, specific effect has been said in the above-described embodiments in the present embodiment
It is bright, it is not repeated herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. three axis interlocks of high voltage load switch including control box and the operating mechanism being arranged in control box, operate machine
Structure has the first actuating axis, the second actuating axis of actuating on-load switch division and the actuating earthing switch of actuating disconnecting switch division
3rd actuating axis of division, control box have an operation panel, and cabinet door is equipped on the outside of operation panel, is had on operation panel by upper
The first handle hole, the second handle hole and the 3rd handle hole set gradually under and, the first actuating axis, the second actuating axis and the 3rd behaviour
Moving axis is extended respectively to close to the position of the first handle hole, the second handle hole and the 3rd handle hole, which is characterized in that further includes master
Interlocking mechanism, main interlocking mechanism include the first return unit, the first interlock plate, the second return unit, the second interlock plate, the 3rd interlock plate
With the 3rd return unit；
The upper end of first return unit is fixed on operation panel, and the lower end of the first return unit is fixedly connected on the first interlock plate,
First return unit is moved up by its first interlock plate of reset force stretchy, and the first interlock plate is made to get out of the way the first handle hole；Second
Actuating axis is fixedly connected with the second actuator close to one end of operation panel, by rotating the second actuating axis, the second actuator energy
The reset force of the first return unit is overcome so that the first interlock plate to be driven to move down, and the first interlock plate can be made to block the first handle hole；
The upper end of second return unit is fixed on operation panel, and the lower end of the second return unit is fixedly connected on the second interlock plate,
Second return unit is moved up by its second interlock plate of reset force stretchy, and the second interlock plate is made to block the second handle hole, simultaneously
The second interlock plate is made to get out of the way the 3rd handle hole；First actuating axis is fixedly connected with the first actuator close to one end of operation panel,
By rotating the first actuating axis, the first actuator can overcome the reset force of the second return unit to push the second interlock plate, and make the
Two interlock plates get out of the way the second handle hole, while the second interlock plate is made to block the 3rd handle hole；
3rd actuating axis is connected close to one end of operation panel by actuating component with the 3rd interlock plate, the lower end of the 3rd return unit
It is fixedly connected on operation panel, the upper end of the 3rd return unit is fixedly connected on the 3rd interlock plate, and the 3rd return unit is multiple by it
Power stretchy the 3rd interlock plate in position moves down, and makes to get out of the way the first handle hole at the top of the 3rd interlock plate, while actuating component can be locked
Cabinet door on the outside of upper operation panel；Actuating component can also overcome the reset force of the 3rd return unit so that the 3rd interlock plate to be driven to move up,
And make to block the first handle hole at the top of the 3rd interlock plate, while actuating component can solve the cabinet door on the outside of operation panel
Lock.
2. three axis interlocks of high voltage load switch according to claim 1, which is characterized in that first interlock plate
On the inner wall of the vertically arranged operation panel, the first interlock plate top side is equipped with one and the first handle hole neighboring
The notch of corresponding cooperation, the top down of the notch extend to form the first shield, the first return unit stretchy first
The peripheral side that jam plate moves up and the notch is made to be wrapped in the first handle hole, while the first shield is also moved to the extension of the first handle hole
Scope it is outer to get out of the way the first handle hole, second actuator can drive the first interlock plate to move down and make first at the top of notch
Shield is moved in the range of the extension of the first handle hole, so that the first shield blocks the first handle hole.
3. three axis interlocks of high voltage load switch according to claim 2, which is characterized in that first interlock plate
Upper to be vertically equipped with the first bar-shaped trough, through one first fixed pin, the first fixed pin is fixed on the behaviour for the bottom of the first bar-shaped trough
Make on the inner wall of panel, first return unit is a resetting spring, and the upper end of the first return unit is fixedly connected on the first fixation
On pin, the lower end of the first return unit is fixedly connected on the first interlock plate, and it is convex that the bottom of the first interlock plate extends inwardly to form first
Platform, second actuator are a fan-shaped connecting lever, and the second actuator can be pressed against in first boss and drive under the first interlock plate
It moves.
4. three axis interlocks of high voltage load switch according to claim 1, which is characterized in that second interlock plate
With the starting stave to link together and the second riser, starting stave and the second riser are setting up and down, and starting stave is located at institute
The one side of the second handle hole is stated, starting stave extends to form the second shield to the one side close to the second handle hole, and the second riser is set
It puts in the top of the 3rd handle hole, the second riser bottom is downwardly extending the 3rd shield, and second return unit can be drawn
Dynamic second interlock plate moves up, and the second shield is made to be moved in the range of the extension of the second handle hole, so that the second shield blocks the
Two handle holes, while the 3rd shield can be moved to outside the scope of the 3rd handle hole extension, so that the 3rd shield gets out of the way the 3rd operation
Hole；First actuator can push the second interlock plate, and the second shield is made to be moved to outside the scope of the second handle hole extension, with
The second shield is made to get out of the way the second handle hole, while the 3rd shield can be moved in the range of the extension of the 3rd handle hole, so that the 3rd
Shield blocks the 3rd handle hole.
5. three axis interlocks of high voltage load switch according to claim 1, which is characterized in that second interlock plate
Upper to be vertically equipped with the second bar-shaped trough, through one second fixed pin, the second fixed pin is fixed on the behaviour for the bottom of the second bar-shaped trough
Make on the inner wall of panel, second return unit is a resetting spring, and the upper end of the second return unit is fixedly connected on the second fixation
On pin, the lower end of the second return unit is fixedly connected on the second interlock plate.
6. three axis interlocks of high voltage load switch according to claim 4, which is characterized in that the starting stave to
On extend to form a L shaped plate, the upper end of L shaped plate extends inwardly to form second boss, and first actuator is a rod-shaped connecting lever,
First actuator can be pressed against in second boss and the second interlock plate is driven to move down.
7. three axis interlocks of high voltage load switch according to claim 1, which is characterized in that the actuating component bag
Door bolt and chevron are included, door bolt is horizontally disposed with, and door bolt has a first end and a second end, and the first end of door bolt is fixedly connected on described
On 3rd actuating axis, Article 4 shape slot is vertically equipped on door bolt between its both ends, axis pin, axis pin are equipped in Article 4 shape slot
It can be moved up and down along Article 4 shape slot, chevron has first end and the second end, and first end is located at the second end
Lower section is articulated on the inner wall of the operation panel in the middle part of chevron, and the first end of chevron is articulated on the axis pin, V-arrangement
The second end of part is resisted against the lower end of the 3rd interlock plate, and the 3rd actuating axis can drive door bolt compared with the 3rd actuating
Axis moves back and forth, and passes through door bolt and lock the cabinet door or the cabinet door is unlocked, on door bolt in Article 4 shape slot
Axis pin the first end of chevron can be driven to be rotated, and the second end of chevron is driven to move up and down.
8. three axis interlocks of high voltage load switch according to claim 1, which is characterized in that the 3rd interlock plate
Upper to be vertically equipped with Article 3 shape slot, through one the 3rd fixed pin, the 3rd fixed pin is fixed on the behaviour at the top of Article 3 shape slot
Make on the inner wall of panel, the 3rd return unit is a resetting spring, and the lower end of the 3rd return unit is fixedly connected on the 3rd fixation
On pin, the upper end of the 3rd return unit is fixedly connected on the 3rd interlock plate.
9. three axis interlocks of high voltage load switch according to claim 1, which is characterized in that further include rack and auxiliary
Help interlocking gear, rack has the first side and the second side, aids in interlocking gear and the control box is separately positioned on the of rack
One side and the second side are pivoted with isolation axis, the control on-load switch point of control disconnecting switch division in rack successively from top to bottom
The load axis of conjunction and the grounding shaft of control earthing switch division, the first end of isolation axis, load axis and grounding shaft all extend to behaviour
Make, in case and respectively with the first actuating axis, the second actuating axis and the 3rd actuating axis connection, to isolate axis, load axis and grounding shaft
Second end all extend to the second side of rack, auxiliary interlocking gear includes being respectively fixedly connected in isolation axis, load axis and connecing
The first interlocking arm, the second interlocking arm and the 4th interlocking arm of earth's axis second end, the first interlocking arm and the second interlocking arm up and down against
It sets and rotation can be carried out at the same time, auxiliary interlocking gear further includes the 3rd interlocking arm and pendulum for being articulated in the rack the second side
Wheel, the 3rd interlocking arm are arranged between the second interlocking arm and the 4th interlocking arm, and the second interlocking arm and the 3rd interlocking arm pass through interlocking
Bar is connected, and escapement is arranged between the 3rd interlocking arm and the 4th interlocking arm, the first interlocking arm, the second interlocking arm, the 3rd
The first locating slot, the second locating slot, the 3rd locating slot and the 4th positioning are respectively equipped on hammerlock and the 4th interlocking arm neighboring
Slot；
When turning on load, grounding shaft can drive the 4th locating slot of the 4th interlocking arm to turn to position upward, the first interlocking arm
The first locating slot can turn to the position to fasten with the neighboring of the second interlocking arm, the second interlocking arm can pass through blocking lever
The 3rd interlocking arm is driven to be rotated, the neighboring of the 3rd interlocking arm can push escapement and make the lower rotation of escapement to the
The position that 4th locating slot of four interlocking arms fastens；
When disconnecting load, the second interlocking arm can drive the 3rd interlocking arm to be rotated by blocking lever, and make the 3rd interlocking arm
3rd locating slot turns to position directed downwardly, and the second locating slot of the second interlocking arm can turn to and the first interlocking arm neighboring
The position to fasten, the neighboring of the 4th interlocking arm can push up escapement and make to turn at the top of escapement and the 3rd interlocking
The position that 3rd locating slot of arm fastens.
10. the operating method of three axis interlocks of high voltage load switch, which is characterized in that when carrying out power operation：(1) lead to
It crosses and rotates the second actuating axis actuating on-load switch progress separating brake, the first return unit is by its first interlock plate of reset force stretchy
It moves, and the first interlock plate is made to get out of the way the first handle hole；(2) by rotating the first actuating axis disconnecting switch is driven to carry out separating brake, the
Two return units are moved up by its second interlock plate of reset force stretchy, and the second interlock plate is made to block the second handle hole, are made simultaneously
Second interlock plate gets out of the way the 3rd handle hole；(3) by rotating the 3rd actuating axis earthing switch is driven to carry out combined floodgate ground connection, actuating group
Part can drive the 3rd interlock plate to move up, and the 3rd interlock plate is made to block the first handle hole, at the same the door bolt in actuating component to by
The direction of nearly 3rd actuating axis is mobile and unlocks cabinet door, and then can open cabinet door；
When carrying out power transmission operation：(1) shut cabinet door, by rotate the 3rd actuating axis drive earthing switch carry out separating brake, the 3rd
Return unit is moved down by its 3rd interlock plate of reset force stretchy, and the 3rd interlock plate is made to get out of the way the first handle hole, while actuating
Door bolt in component is mobile to the direction away from the 3rd actuating axis and locks cabinet door；(2) by rotate the first actuating axis drive every
It leaves and puts capable combined floodgate into, the first actuator can overcome the reset force of the second return unit to push the second interlock plate, and make second
Jam plate gets out of the way the second handle hole, while the second interlock plate is made to block the 3rd handle hole；(3) born by rotating the second actuating axis actuating
Lotus switch closes a floodgate, and the second actuator can overcome the reset force of the first return unit so that the first interlock plate to be driven to move down, and can make
First interlock plate blocks the first handle hole.
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| CN201611007614.8A CN106449233B (en) | 2016-11-16 | 2016-11-16 | The three axis interlocks and its operating method of high voltage load switch |
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| CN201611007614.8A CN106449233B (en) | 2016-11-16 | 2016-11-16 | The three axis interlocks and its operating method of high voltage load switch |
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| CN106449233B true CN106449233B (en) | 2018-06-01 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155050B (en) * | 2018-02-26 | 2024-04-05 | 厦门市凯禹开关有限公司 | Operating shaft interlocking device for load switch |
| CN109545593B (en) * | 2018-12-04 | 2023-08-22 | 上海电器科学研究所（集团）有限公司 | Labor-saving transmission interlocking mechanism of switching device |
| CN111477494A (en) * | 2020-04-22 | 2020-07-31 | 广州亿盛电气科技有限公司 | Aerify cabinet load switch operating device that airtight degree is high |
| CN112152099A (en) * | 2020-08-14 | 2020-12-29 | 珠海沃顿电气有限公司 | Ring main unit and using method |
| CN112165018A (en) * | 2020-09-23 | 2021-01-01 | 山东电工电气集团智能电气有限公司 | Aerify cabinet with multiple protection interlocking device |
| US11476647B1 (en) | 2021-04-22 | 2022-10-18 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
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| CN203674005U (en) * | 2014-01-07 | 2014-06-25 | 福建逢兴机电设备有限公司 | Triaxial interlocking device |
| CN203706944U (en) * | 2014-01-24 | 2014-07-09 | 上海正昊电力科技有限公司 | Locking device of circuit breaker closing knob of switch cabinet and switch cabinet group |
| CN206225237U (en) * | 2016-11-16 | 2017-06-06 | 协成科技股份有限公司 | Three axle interlocks of high voltage load switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3278711B2 (en) * | 1995-05-15 | 2002-04-30 | 株式会社日立製作所 | Double throw type interlock device |
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|---|---|---|---|---|
| CN203674005U (en) * | 2014-01-07 | 2014-06-25 | 福建逢兴机电设备有限公司 | Triaxial interlocking device |
| CN203706944U (en) * | 2014-01-24 | 2014-07-09 | 上海正昊电力科技有限公司 | Locking device of circuit breaker closing knob of switch cabinet and switch cabinet group |
| CN206225237U (en) * | 2016-11-16 | 2017-06-06 | 协成科技股份有限公司 | Three axle interlocks of high voltage load switch |
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