CN108320981B - Manual and electric load switch three-station mechanism - Google Patents

Manual and electric load switch three-station mechanism Download PDF

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Publication number
CN108320981B
CN108320981B CN201810165879.3A CN201810165879A CN108320981B CN 108320981 B CN108320981 B CN 108320981B CN 201810165879 A CN201810165879 A CN 201810165879A CN 108320981 B CN108320981 B CN 108320981B
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China
Prior art keywords
plate
switch operating
interlocking
shaft
main switch
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Active
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CN201810165879.3A
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Chinese (zh)
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CN108320981A (en
Inventor
夏从安
王安心
余希
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Murge Electric Co ltd
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Murge Electric Co ltd
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Priority to CN201810165879.3A priority Critical patent/CN108320981B/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/026Movable parts and contacts mounted thereon

Abstract

The invention provides a load switch three-station mechanism which comprises a rack, wherein a grounding switch operating device, a closing switch operating device and a three-station output device are arranged on the rack, the three-station output device comprises an output shaft sleeve and a first crank arm which are rigidly connected, the output shaft sleeve is rotatably matched with the rack, one side of the first crank arm is provided with a differential plate, the differential plate is provided with a first sliding groove, the other side of the first crank arm is provided with a first transmission pin, the first transmission pin is rotatably connected with a first connecting rod, when a spring energy storage device rotates to the maximum energy storage position, energy storage is released to enable a main switch operating device to continue to rotate, and at the moment, the main switch operating device drives the three-station output device to rotate through the first connecting rod and the first transmission pin so as to output torque. The three-station switching operation of switching on, switching off and grounding can be realized through two input stations and one output station, the structure is compact, and the use is convenient.

Description

Manual and electric load switch three-station mechanism
Technical Field
The invention relates to a three-position mechanism, in particular to a three-position operating mechanism for a load switch.
Background
The duty of the load switch is realized by the opening and closing action of the contacts to realize the connection and disconnection of the circuit, and the opening and closing action of the contacts is realized by the operating mechanism. The existing operating mechanism has a complex structure, high manufacturing difficulty and complex operation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a load switch three-station mechanism integrating manual operation and electric operation, which can realize switching-on, switching-off and grounding three-station switching operation through two input stations and one output station, and has compact structure and convenient use.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a manual and electric integrated load switch three-station mechanism comprises a rack, wherein a grounding switch operating device, a main switch operating device, a three-station output device and an electric device are arranged on the rack, the three-station output device comprises an output shaft sleeve and a first crank arm which are rigidly connected, the output shaft sleeve is rotatably matched with the rack, one side of the first crank arm is provided with a differential plate, the differential plate is provided with a first sliding groove, the other side of the first crank arm is provided with a first transmission pin, the first transmission pin is rotatably connected with a first connecting rod, a spring energy storage device is arranged between the grounding switch operating device and the main switch operating device, one end of the grounding switch operating device extends out of one side of the rack and can be rotated under manual driving so as to drive the spring energy storage device to store energy, when the spring energy storage device rotates to the maximum energy storage position, the energy storage is released so that the grounding switch operating device continues to, at the moment, the grounding switch operating device drives the three-station output device to rotate through the first sliding groove so as to output torque; thereby main switch operating means's one end stretches out in the same one side of frame and can rotate under electronic or manual drive and drive spring energy memory and carry out the energy storage, when spring energy memory rotated the biggest energy storage position, release energy storage made main switch operating means continue to rotate, thereby main switch operating means drives three station output device through first connecting rod and first drive pin and rotates output torque this moment.
Further, the frame includes first frame board and second frame board, passes through pillar fixed connection between first frame board and the second frame board.
Further, the earthing switch operating device comprises an earthing switch operating shaft, a second crank arm and a second transmission pin arranged between the second crank arms, wherein the earthing switch operating shaft is in rotatable fit with the first frame plate.
Further, the main switch operating device comprises a main switch operating shaft, third crank arms and third transmission pins arranged between the third crank arms, wherein the main switch operating shaft is rotatably matched with the first frame plate.
Further, the spring energy storage device comprises a pressure spring, a first pressure spring head and a second pressure spring head, the first pressure spring head and the second pressure spring head are connected through a telescopic fourth connecting rod, the pressure spring is sleeved on the fourth connecting rod, the first pressure spring head is rotatably installed on a second transmission pin, and the second pressure spring head is rotatably installed on a third transmission pin.
Further, still include stop device, stop device includes first limiting plate and fifth turning arm, and first limiting plate and fifth turning arm rotationally install respectively on main switch operating axis, and the one end of first limiting plate is equipped with the stroke spring, and the other end is equipped with second limiting plate and pothook, and the first limiting plate of second limiting plate perpendicular to just is located the outside of fifth turning arm, is equipped with on the first link with pothook complex notch.
Further, the indicating device comprises a signal shaft, the signal shaft is rotatably installed between the first frame plate and the second frame plate, a fifth connecting rod is arranged on the signal shaft, one end of the fifth connecting rod is in linkage fit with the first crank arm, the other end of the fifth connecting rod is connected with the micro switch, and one end of the signal shaft extends out of the outer side of the first frame plate and is fixedly connected with a switch state indicating sheet.
Further, still include first interlock, first interlock includes first interlocking board, and the both ends of first interlocking board are equipped with earthing switch operation shaft hole and main switch operation shaft hole respectively, and earthing switch operation shaft hole and main switch operation shaft hole are half-bore, and first interlocking board passes through the interlocking board stationary blade to be installed on first frame board, and first interlocking board can be followed the interlocking board stationary blade and removed, and its travel satisfies: when the main switch operating shaft is exposed out of the main switch operating hole, the other end of the first interlocking plate covers the grounding switch operating shaft, and vice versa; the first interlocking plate is provided with a stroke groove, a padlock sliding plate is arranged in the stroke groove, the padlock sliding plate is T-shaped, the transverse part of the padlock sliding plate is positioned in the first interlocking plate, and the vertical part of the padlock sliding plate extends out of the first interlocking plate and is provided with a protective sleeve.
Further, the second interlocking device comprises a second interlocking plate, the second interlocking plate is arranged on the outer side of the lower portion of the first frame plate and can move up and down, an interlocking sheet is arranged on the second interlocking plate, a fourth connecting lever is arranged on the earthing switch operating shaft, a fourth transmission pin is arranged on the fourth connecting lever, a moving groove of the fourth transmission pin is formed in the first frame plate, and therefore the fourth transmission pin can move in the moving groove and is matched with the interlocking sheet to limit the second interlocking plate.
Further, the electric device comprises a motor, a seventh connecting lever is fixedly connected to an output shaft of the motor, a fourth connecting rod is rotatably connected to the outer end of the seventh connecting lever, an arc-shaped portion is arranged at the other end of the fourth connecting rod, a sixth connecting lever is rotatably connected to the fourth connecting rod, the sixth connecting lever is sleeved on the main switch operating shaft through an opening in the middle of the sixth connecting lever, and an arc-shaped groove is formed in the other end of the sixth connecting lever.
The invention has the beneficial effects that: (1) according to the invention, the three-station output device is used for combining the two input shafts into one, and the input of the two shafts is output through one shaft by improving the internal structure of the operating mechanism, so that the structure is compact and the adaptability is strong.
(2) The connecting rod arranged between the grounding switch operating shaft and the main switch operating shaft unifies the torques input by the two operating shafts, so that the two operating shafts cannot be influenced when different torques are input, and the different input torques can be independently output through one output shaft.
(3) According to the invention, the limiting device is arranged on the main switch operating shaft, so that the connecting rod can be limited before the energy storage device rotates in place, and the three-station output device is prevented from rotating in advance.
(4) According to the invention, the first interlocking plate is arranged between the grounding switch operating shaft and the main switch operating shaft, so that the two switch operating shafts are prevented from outputting simultaneously, and therefore, the main switch is prevented from being grounded when being operated in a charged mode and the main switch is closed.
(5) The invention also provides an interlocking device connected with the lower door of the switch cabinet, and the second interlocking sheet is used for preventing the grounding switch when the door is opened.
(6) The main switch operating shaft can be driven in an electric or manual mode, and an electric driving structure and a manual driving structure cannot interfere with each other, so that the main switch operating shaft is wider in application range.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic view of the invention with the housing and external structure removed.
Fig. 4 is an energy storage schematic of the present invention.
Fig. 5 is a schematic diagram of the three-position mechanism of the present invention.
Reference numbers in the figures: an output bush 1, a first crank arm 2, a differential plate 3, a first sliding groove 4, a first transmission pin 5, a first link 6, a first frame plate 7, a second frame plate 8, a pillar 9, a ground switch operating shaft 10, a second crank arm 11, a second transmission pin 12, a main switch operating shaft 13, a third crank arm 14, a third transmission pin 15, a compression spring 16, a first compression spring head 17, a second compression spring head 18, a fourth link 19, a first limit plate 20, a stroke spring 21, a second limit plate 22, a hook 23, a notch 24, a signal shaft 25, a fifth link 26, a micro switch 27, a switch state indicating piece 28, a first interlocking plate 29, a ground switch operating shaft hole 30, a main switch operating shaft hole 31, a transmission plate fixing piece 32, a stroke groove 33, a padlock sliding plate 34, a protective cover 35, a second interlocking plate 36, an interlocking piece 37, a fourth crank arm 38, a fourth pin 39, a key interlocking 41, a fifth crank arm 42, the motor 43, the seventh crank arm 44, the fourth link 45, the arc-shaped part 46, the sixth crank arm 47, the arc-shaped groove 48 and the notch 49.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings, and it should be understood that the examples are only illustrative of the present invention and should not be construed as limiting the present invention.
As shown in the figure, the invention discloses a manual and electric integrated load switch three-station mechanism, which comprises a frame, wherein a grounding switch operating device, a main switch operating device and a three-station output device are arranged on the frame, the three-station output device comprises an output shaft sleeve 1 and a first crank arm 2 which are rigidly connected, the output shaft sleeve 1 is rotatably matched with the frame, one side of the first crank arm 2 is provided with a differential plate 3, the differential plate 3 is provided with a first sliding groove 4, the other side of the first crank arm 2 is provided with a first transmission pin 5, the first transmission pin 5 is rotatably connected with a first connecting rod 6, a spring energy storage device is arranged between the grounding switch operating device and the main switch operating device, one end of the grounding switch operating device extends out of one side of the frame and can be manually driven to rotate so as to drive the spring energy storage device to store energy, when the spring energy storage device rotates to the maximum energy storage position, releasing the stored energy to enable the grounding switch operating device to continue to rotate, and driving the three-station output device to rotate through the first sliding groove by the grounding switch operating device so as to output torque; thereby main switch operating means's one end stretches out in the same one side of frame and can rotate under manual drive and drive spring energy memory and carry out the energy storage, when spring energy memory rotated the biggest energy storage position, release energy storage made main switch operating means continue to rotate, thereby main switch operating means drives three station output device through first connecting rod and first drive pin and rotates output torque this moment.
Specifically, the frame comprises a first frame plate 7 and a second frame plate 8, and the first frame plate 7 and the second frame plate 8 are fixedly connected through a strut 9.
The earthing switch operating device comprises an earthing switch operating shaft 10, second crank arms 11 and second transmission pins 12 arranged between the second crank arms 11, wherein the earthing switch operating shaft 10 is rotatably matched with the first frame plate 7 through a shaft sleeve, and the outer ends of the earthing switch operating shaft 10 extend out of the first frame plate 7.
The main switch operating device comprises a main switch operating shaft 13, third crank arms 14 and third transmission pins 15 arranged between the third crank arms 14, wherein the main switch operating shaft 13 is rotatably matched with the first frame plate 7 through a shaft sleeve, and the outer ends of the main switch operating shaft and the first frame plate 7 also extend out.
The spring energy storage device comprises a pressure spring 16, a first pressure spring head 17 and a second pressure spring head 18, the first pressure spring head 17 and the second pressure spring head 18 are connected through a telescopic fourth connecting rod 19, the pressure spring 16 is sleeved on the fourth connecting rod 19, the first pressure spring head 17 is rotatably arranged on the second transmission pin 12, the second pressure spring head 18 is rotatably arranged on the third transmission pin 15, and when the grounding switch operating device rotates, the first pressure spring head 17 is driven to compress the pressure spring 16 so as to store energy; when the main switch operating device is rotated, the second compression spring head 18 compresses the compression spring 16 in the opposite direction to store energy.
As a preferable mode, the three-position mechanism of the present invention further includes a limiting device, the limiting device includes a first limiting plate 20 and a fifth crank arm 42, the first limiting plate 20 is rotatably installed on the main switch operating shaft 13, the fifth crank arm 42 is also rotatably installed on the main switch operating shaft 13, one end of the first limiting plate 20 is provided with a stroke spring 21, the other end is provided with a second limiting plate 22 and a hook 23, the first link 6 is provided with a notch 24 matched with the hook 23, the second limiting plate 22 is perpendicular to the first limiting plate 20 and is located outside the fifth crank arm 42, so that the second limiting plate 22 can slide along the outside of the fifth crank arm 42, the fifth crank arm 42 does not affect the swing of the second limiting plate 22, but the fifth crank arm 42 is provided with a sliding groove of the third transmission pin 15, when the main switch operating shaft 13 rotates, the third transmission pin 15 can move in the sliding groove of the fifth crank arm 42, the third crank arm 14 is driven to rotate to interfere with the second limit plate 22 and the second limit plate 22 is jacked upwards to rotate, the stroke spring 21 is stretched to enable the stroke spring 21 to store energy, so that the clamping hook 23 and the notch 24 are separated from interference, the first connecting rod 6 can rotate at the moment, the three-station output device can output torque, after one-time output is completed, the third crank arm 14 does not prop against the second limit plate 22, the stroke spring 21 releases the stored energy to enable the first limit plate 20 to reset, preparation is made for next operation, in addition, the back of the fifth crank arm 42 is also provided with a sliding pin, a movable groove of the sliding pin is formed in the second mechanism plate 8, and the sliding pin can slide back and forth in a range limited by the movable groove, so that the rotating range of the fifth crank arm 42 is limited.
As a preferable mode, the three-position mechanism of the present invention further comprises an indicating device, the indicating device comprises a signal shaft 25, the signal shaft 25 is rotatably installed between the first frame plate 7 and the second frame plate 8, a fifth connecting rod 26 is arranged on the signal shaft 25, one end of the fifth connecting rod 26 is in linkage fit with the first connecting lever 2, the other end is connected with a micro switch 27, one end of the signal shaft 25 extends out of the first frame plate 7 and is fixedly connected with a switch state indicating sheet 28, when the ground switch operating device or the main switch operating device rotates to drive the three-position output device to rotate and output torque, the first connecting lever 2 on the three-position output device drives the fifth connecting rod 26 to rotate, so as to trigger the micro switch 27, the micro switch 27 outputs an electronic indication, in addition, the fifth connecting rod 26 rotates to drive the signal shaft 25 to rotate, so that the switch state indicating sheet 28 also rotates, the corresponding state, for example, closing, opening or grounding, is thus indicated on the housing of the three-position mechanism.
As a preferable mode, the three-position mechanism of the present invention further includes a first interlocking device, the first interlocking device includes a first interlocking plate 29, both ends of the first interlocking plate 29 are respectively provided with a ground switch operation shaft hole 30 and a main switch operation shaft hole 31, both the ground switch operation shaft hole and the main switch operation shaft hole are half-holes, the first interlocking plate 29 is mounted on the first frame plate 7 through an interlocking plate fixing piece 32, the first interlocking plate 29 can move along the interlocking plate fixing piece 32, and the moving stroke of the first interlocking plate 29 satisfies: when the main switch operating shaft is exposed to the main switch operating hole, the other end of the first interlock plate covers the ground switch operating shaft, and vice versa, so that it is possible to ensure that the ground switch operating shaft and the main switch operating shaft are not exposed at the same time.
The first interlocking plate 29 is provided with a stroke slot 33, a padlock sliding plate 34 is arranged in the stroke slot 33, the padlock sliding plate 34 is T-shaped, the transverse part of the padlock sliding plate is positioned in the first interlocking plate 29, the vertical part of the padlock sliding plate extends out of the first interlocking plate 29 and is provided with a protective sleeve 35, and the first interlocking plate 29 can be moved by pulling the padlock sliding plate 34.
As a preferable mode, the three-position mechanism of the present invention further includes a second interlock device, the second interlock device includes a second interlock plate 36, the second interlock plate 36 is disposed outside a lower portion of the first frame plate 7 and can move up and down, an interlock piece 37 is disposed on the second interlock plate 36, a fourth crank arm 38 is disposed on the earthing switch operating shaft 10, a fourth driving pin 39 is disposed on the fourth crank arm 38, a moving groove 40 of the fourth driving pin 39 is disposed on the first frame plate 7, the fourth driving pin 39 can move in the moving groove 40 to cooperate with the interlock piece 37 to limit the second interlock plate 36, when the main switch performs a closing operation, the fourth crank arm 38 rotates to a side where the fourth driving pin 39 is disposed in the moving groove 40 and close to the second interlock plate 36, at the moment, the second interlock plate 36 is locked, and at the moment, the second interlock plate locks the lower door and does not allow the opening, conversely, when the main switch is opened, the fourth crank arm 38 rotates to the side of the fourth driving pin 39 away from the second interlock plate 36 in the moving groove 40, and then the second interlock plate 36 is released to allow the door to be opened, without interfering with the interlock piece 37.
The present invention is further provided with a key lock 41, and when the key lock 41 is locked, the first interlock plate 29 blocks the main switch operating shaft 13, and the key of the key lock 41 is the same as that of the lower door, and the upper door and the lower door must be locked first to open the key lock 41, thereby ensuring that the ground switch cannot be opened when the door is opened.
In the present invention, the closing operation of the main switch operation shaft can be achieved electrically, specifically, the second frame plate 8 is further provided with a motor 43, the output shaft of the motor 43 is fixedly connected with a seventh crank arm 44, the outer end of the seventh crank arm 44 is rotatably connected with a fourth connecting rod 45, the other end of the fourth connecting rod 45 is provided with an arc-shaped portion 46, the fourth connecting rod 45 is rotatably connected with a sixth crank arm 47, the sixth crank arm 47 is sleeved on the main switch operation shaft 13 through an opening at the middle portion of the sixth crank arm 47, the other end of the sixth crank arm 47 is provided with an arc-shaped groove 48, the middle portion of the fourth connecting rod 45 is provided with a notch 49, the notch 49 can be in linkage fit with a chute plate on the fifth crank arm 42, when the motor is started, the motor shaft drives the seventh crank arm 44 to rotate, the fifth crank arm drives the fourth connecting rod 45 to rotate, the fourth connecting rod 45 drives the third arm 14 to rotate, the following principle, it is needless to say that the arc portion 46 outside the fourth link 45 can rotate along with the arc portion, and the shape of the arc portion can be moved to the middle position without interference, and in addition, the notch 49 in the middle of the fourth link 45 can drive the fifth crank arm 42 to rotate and is limited by the fifth crank arm 42.

Claims (5)

1. A manual and electric integrated load switch three-station mechanism comprises a rack and is characterized in that a grounding switch operating device, a main switch operating device, a three-station output device and an electric device are arranged on the rack, the three-station output device comprises an output shaft sleeve and a first crank arm which are rigidly connected, the output shaft sleeve is rotatably matched with the rack, one side of the first crank arm is provided with a differential plate, the differential plate is provided with a first sliding groove, the other side of the first crank arm is provided with a first transmission pin, the first transmission pin is rotatably connected with a first connecting rod, a spring energy storage device is arranged between the grounding switch operating device and the main switch operating device, one end of the grounding switch operating device extends out of one side of the rack and can be rotated under manual driving so as to drive the spring energy storage device to store energy, when the spring energy storage device rotates to the maximum energy storage position, the energy storage is released so that the grounding switch operating device continues, at the moment, the grounding switch operating device drives the three-station output device to rotate through the first sliding groove so as to output torque; one end of the main switch operating device extends out of the same side of the rack and can rotate under electric or manual driving so as to drive the spring energy storage device to store energy, when the spring energy storage device rotates to the maximum energy storage position, the stored energy is released so that the main switch operating device continues to rotate, and at the moment, the main switch operating device drives the three-station output device to rotate through the first connecting rod and the first transmission pin so as to output torque;
the rack comprises a first rack plate and a second rack plate which are fixedly connected through a strut;
the grounding switch operating device comprises a grounding switch operating shaft, second crank arms and second transmission pins arranged between the second crank arms, and the grounding switch operating shaft is rotatably matched with the first frame plate;
the main switch operating device comprises a main switch operating shaft, third crank arms and third transmission pins arranged between the third crank arms, and the main switch operating shaft is rotatably matched with the first frame plate;
the limiting device comprises a first limiting plate and a fifth crank arm, the first limiting plate and the fifth crank arm are rotatably mounted on the main switch operating shaft respectively, a stroke spring is arranged at one end of the first limiting plate, a second limiting plate and a clamping hook are arranged at the other end of the first limiting plate, the second limiting plate is perpendicular to the first limiting plate and is located on the outer side of the fifth crank arm, and a notch matched with the clamping hook is formed in the first connecting rod.
2. The three-position mechanism of the load switch integrated with the manual operation and the electric operation as claimed in claim 1, wherein the spring energy storage device comprises a compression spring, a first compression spring head and a second compression spring head, the first compression spring head and the second compression spring head are connected through a second telescopic connecting rod, the compression spring is sleeved on the second connecting rod, the first compression spring head is rotatably mounted on the second transmission pin, and the second compression spring head is rotatably mounted on the third transmission pin.
3. The three-position mechanism of the load switch integrated with manual operation and electric operation as claimed in claim 1, further comprising an indicating device, wherein the indicating device comprises a signal shaft, the signal shaft is rotatably installed between the first frame plate and the second frame plate, a third connecting rod is installed on the signal shaft, one end of the third connecting rod is in linkage fit with the first crank arm, the other end of the third connecting rod is connected with the micro switch, and one end of the signal shaft extends out of the first frame plate and is fixedly connected with a switch state indicating sheet.
4. The manual and electric integrated load switch three-station mechanism as claimed in claim 1, further comprising a first interlocking device, wherein the first interlocking device comprises a first interlocking plate, two ends of the first interlocking plate are respectively provided with a ground switch operation shaft hole and a main switch operation shaft hole, the ground switch operation shaft hole and the main switch operation shaft hole are both half holes, the first interlocking plate is mounted on the first frame plate through an interlocking plate fixing piece, the first interlocking plate can move along the interlocking plate fixing piece, and the movement stroke of the first interlocking plate is as follows: when the main switch operating shaft is exposed out of the main switch operating hole, the other end of the first interlocking plate covers the grounding switch operating shaft, and vice versa; the first interlocking plate is provided with a stroke groove, a padlock sliding plate is arranged in the stroke groove, the padlock sliding plate is T-shaped, the transverse part of the padlock sliding plate is positioned in the first interlocking plate, and the vertical part of the padlock sliding plate extends out of the first interlocking plate and is provided with a protective sleeve.
5. The three-position mechanism of the load switch integrated with manual operation and electric operation as claimed in claim 1, further comprising a second interlocking device, wherein the second interlocking device comprises a second interlocking plate, the second interlocking plate is disposed on the outer side of the lower portion of the first frame plate and can move up and down, an interlocking piece is disposed on the second interlocking plate, a fourth crank arm is disposed on the operating shaft of the earthing switch, a fourth driving pin is disposed on the fourth crank arm, a moving groove of the fourth driving pin is disposed on the first frame plate, and the fourth driving pin can move in the moving groove to cooperate with the interlocking piece to limit the second interlocking plate.
CN201810165879.3A 2018-02-28 2018-02-28 Manual and electric load switch three-station mechanism Active CN108320981B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810165879.3A CN108320981B (en) 2018-02-28 2018-02-28 Manual and electric load switch three-station mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810165879.3A CN108320981B (en) 2018-02-28 2018-02-28 Manual and electric load switch three-station mechanism

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CN108320981A CN108320981A (en) 2018-07-24
CN108320981B true CN108320981B (en) 2020-08-18

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Publication number Priority date Publication date Assignee Title
CN108320985B (en) * 2018-02-28 2020-08-18 默飓电气有限公司 Three-station mechanism of load switch
CN108470657B (en) * 2018-02-28 2020-08-18 默飓电气有限公司 Three-station mechanism of combined electrical apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453194A1 (en) * 1974-11-09 1976-05-13 Bbc Brown Boveri & Cie Disconnecting switch safety earthing switch - has spring force drive actuated by common drive shaft in sequential manner
CN103871773B (en) * 2014-03-25 2016-04-13 厦门凯能电力科技有限公司 Three station operating mechanisms
CN107706035B (en) * 2017-10-29 2020-05-05 默飓电气有限公司 Manual and electric three-station mechanism with brake separating and tripping functions
CN208336070U (en) * 2018-02-28 2019-01-04 默飓电气有限公司 It is a kind of manually and electronic in integrated on-load switch three position mechanism

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