CN108538676B - Three-station switch operating mechanism interlocking device - Google Patents
Three-station switch operating mechanism interlocking device Download PDFInfo
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- CN108538676B CN108538676B CN201810629161.5A CN201810629161A CN108538676B CN 108538676 B CN108538676 B CN 108538676B CN 201810629161 A CN201810629161 A CN 201810629161A CN 108538676 B CN108538676 B CN 108538676B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 166
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to a three-station switch operating mechanism interlocking device, and belongs to the technical field of ring main units. The mechanism chamber panel is provided with a load switch operation hole and a grounding switch operation hole; the interlocking baffle is rotatably connected with the mechanism chamber panel through a rotating shaft, and the interlocking baffle rotates relative to the mechanism chamber panel to enable the load switch operation hole or the grounding switch operation hole to be exposed; the interlocking slide sheet is slidably connected with the interlocking baffle sheet through a transmission shaft, and the interlocking slide sheet can slide relative to the mechanism chamber panel to drive the interlocking baffle sheet to rotate relative to the mechanism chamber panel; the mechanism interlocking fixing frame is provided with three locking holes, the interlocking sliding sheet is provided with a through hole matched with one of the locking holes, and the through hole is matched with one of the locking holes; the locking piece is arranged in the through hole and the locking hole in a penetrating way and used for limiting the movement of the interlocking sliding piece relative to the mechanism interlocking fixing frame. The interlocking device of the three-station switch operating mechanism has the advantages of simple structure, less transmission links, low cost and convenient operation.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a three-station switch operating mechanism interlocking device.
Background
The gas-insulated ring main unit is an important power supply unit in a medium-voltage power transmission and distribution system, and the ring main unit inlet and outlet functional units are divided into a load switch unit, a combined electrical appliance unit and a breaker and isolating switch unit according to different purposes. The three types of functional units are all provided with three-station switch operating mechanisms, and the interlocking device of the three-station switch operating mechanisms is used as an important component part of the switch operating mechanisms to play roles in preventing misoperation and improving the protection level of a mechanism room, so that the reliability and the stability of the three-station switch operating mechanism have a crucial influence on the normal operation of the switch equipment and the safety of staff.
The existing mechanism interlocking device is complex in structure, large in occupied space, high in cost, more in transmission links, easy to clamp and difficult to operate.
Disclosure of Invention
The invention aims to solve the problems and provide the interlocking device of the three-station switch operating mechanism, which has the advantages of simple structure, less transmission links, low cost and convenient operation, and improves the problems.
The invention is realized in the following way:
the embodiment of the invention provides a three-station switch operating mechanism interlocking device which comprises a mechanism chamber panel, an interlocking baffle, an interlocking sliding sheet, a mechanism interlocking fixing frame and a locking piece;
the mechanism chamber panel is provided with a load switch operation hole and a grounding switch operation hole;
the interlocking baffle is rotatably connected with the mechanism chamber panel through a rotating shaft and used for shielding the load switch operation hole and the grounding switch operation hole, and the interlocking baffle rotates relative to the mechanism chamber panel to enable the load switch operation hole or the grounding switch operation hole to be exposed;
the interlocking slide sheet is slidably connected with the mechanism room panel, the interlocking baffle sheet is provided with a transmission shaft, the interlocking slide sheet is slidably connected with the interlocking baffle sheet through the transmission shaft, and the interlocking slide sheet can drive the interlocking baffle sheet to rotate relative to the mechanism room panel when sliding relative to the mechanism room panel;
the mechanism interlocking fixing frame is connected with the mechanism chamber panel, three locking holes are formed in the mechanism interlocking fixing frame, through holes matched with the locking holes are formed in the interlocking sliding sheets, and the through holes are matched with one of the locking holes;
the locking piece is respectively connected with the mechanism interlocking fixing frame and the interlocking sliding sheet, the locking piece is arranged in the through hole in a penetrating mode and the locking hole in a penetrating mode, and the locking piece is used for limiting the interlocking sliding sheet to move relative to the mechanism interlocking fixing frame.
In an alternative embodiment of the present invention, the interlocking blocking piece includes a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece, where the first connecting piece, the second connecting piece and the third connecting piece are distributed side by side along a width direction of the mechanism chamber panel, the fourth connecting piece is connected with the first connecting piece, the second connecting piece and the third connecting piece respectively and forms a chevron mechanism, the rotating shaft is mounted on the mechanism chamber panel, the rotating shaft is rotatably connected with the second connecting piece, the first connecting piece is disposed corresponding to the load switch operation hole, the third connecting piece is disposed corresponding to the ground switch operation hole, and the transmission shaft is located on the second connecting piece and is far away from the fourth connecting piece relative to the rotating shaft.
In an alternative embodiment of the present invention, the first connecting piece includes a first arc segment, the first arc segment is located on a side of the first connecting piece away from the second connecting piece, and a center of the first arc segment is located at a center of the rotating shaft;
the third connecting piece comprises a second arc section, the second arc section is positioned on one side, far away from the second connecting piece, of the third connecting piece, and the circle center of the second arc section is positioned at the center of the rotating shaft.
In an alternative embodiment of the present invention, the three locking holes are a first locking hole, a second locking hole and a third locking hole, respectively, the second locking hole is located between the first locking hole and the third locking hole, the first locking hole corresponds to the load switch operation hole, the third locking hole corresponds to the ground switch operation hole, and when the interlocking flap rotates relative to the mechanism chamber panel until the load switch operation hole or the ground switch operation hole is exposed, the through hole is matched with the first locking hole or the second locking hole.
In an alternative embodiment of the present invention, the interlocking flap has three states, which are a first state, a second state and a third state respectively;
when the interlocking baffle is in the first state, the first connecting piece shields the load switch operation hole, and the third connecting piece shields the grounding switch operation hole;
when the interlocking baffle is in the second state, the first connecting piece and the load switch operation hole are staggered, the load switch operation hole is exposed, and the third connecting piece shields the grounding switch operation hole;
when the interlocking baffle is in a third state, the first connecting piece shields the load switch operation hole, the third connecting piece is staggered with the grounding switch operation hole, and the grounding switch operation hole is exposed.
In an alternative embodiment of the present invention, the first connecting member, the second connecting member, the third connecting member, and the fourth connecting member are integrally formed.
In an alternative embodiment of the present invention, the interlocking sliding vane is provided with a first sliding groove and two second sliding grooves, the direction of the connection line between the load switch operation hole and the ground switch operation hole is a reference direction, the first sliding groove is arranged along the direction perpendicular to the reference direction, the transmission shaft is slidably arranged in the first sliding groove, the two second sliding grooves are distributed at intervals along the reference direction, the second sliding grooves extend along the reference direction, the mechanism chamber panel is provided with two sliding vane limiting shafts corresponding to the second sliding grooves, and the sliding vane limiting shafts are positioned in the second sliding grooves;
when the interlocking slide sheet slides to a limit position relative to the mechanism chamber panel along the reference direction, one of the load switch operation hole or the ground switch operation hole is exposed, and the through hole is matched with one of the locking holes.
In an alternative embodiment of the present invention, the mechanism interlocking fixing frame is movably connected with the mechanism chamber panel, the mechanism chamber panel is provided with a limiting hole, the limiting hole extends along the reference direction, the mechanism interlocking fixing frame is penetrated in the limiting hole, the mechanism interlocking fixing frame includes a limiting part, the width of the limiting part is greater than the length of the limiting hole, and the limiting part and the locking hole are respectively located at two sides of the mechanism chamber panel;
the interlocking slip sheet comprises a connecting part which is used for being matched with the interlocking fixing frame of the mechanism, the connecting part is perpendicular to the mechanism chamber panel, the connecting part is slidably arranged in the limiting hole, and the through hole is positioned in the connecting part.
In an alternative embodiment of the present invention, the three-position switch operating mechanism interlocking device further includes a plurality of self-locking nuts, and the plurality of self-locking nuts are respectively matched with the rotating shaft, the transmission shaft and the sliding vane limiting shaft.
In an alternative embodiment of the present invention, the locking member is a padlock.
Compared with the prior art, the invention has the beneficial effects that:
the interlocking device of the three-station switch operating mechanism has the advantages of simple structure, less transmission links, low cost and convenient operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a first perspective structure of an interlocking device of a three-station switch operating mechanism according to an embodiment of the present invention;
fig. 2 is a schematic view of a second view angle structure of an interlocking device of a three-station switch operating mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of a second state of the interlock tab of FIG. 1;
FIG. 4 is a schematic view of the interlocking flap of FIG. 1 in a third state;
FIG. 5 is a schematic view of a mating state of the interlocking fastening device and the interlocking slide of FIG. 1;
FIG. 6 is a schematic view of the mechanism of FIG. 1 in another mating state of the interlocking fastening device and the interlocking slide;
fig. 7 is a schematic view of a third view angle structure of an interlocking device of a three-station switch operating mechanism according to an embodiment of the present invention;
fig. 8 is an enlarged schematic view at a of fig. 7.
Icon: 100-three-station switch operating mechanism interlocking device; 1-a mechanism room panel; 11-a load switch operation hole; 12-a ground switch operation hole; 13-a rotating shaft; 14-a slide limiting shaft; 15-limiting holes; 2-interlocking baffle plates; 21-a transmission shaft; 22-a first connector; 221-a first arc segment; 23-a second connector; 24-a third connector; 241-a second arc segment; 25-fourth connectors; 3-interlocking sliding sheets; 31-a first chute; 32-a second chute; 33-through holes; 34-a connection; 4-a mechanism interlocking fixing frame; 41-locking holes; 42-a first locking hole; 43-a second locking hole; 44-a third locking hole; 45-limiting parts; 5-locking piece; 52-self-locking nut.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1, the present embodiment provides a three-station switch operating mechanism interlocking device 100, which includes a mechanism chamber panel 1, an interlocking baffle 2, an interlocking slide 3, a mechanism interlocking fixing frame 4 and a locking member 5.
In the embodiment, the mechanism chamber panel 1 is provided with a load switch operation hole 11 and a grounding switch operation hole 12, the interlocking baffle 2 is rotatably connected with the mechanism chamber panel 1 through a rotating shaft 13, the interlocking baffle 2 is used for shielding the load switch operation hole 11 and the grounding switch operation hole 12, and the interlocking baffle 2 rotates relative to the mechanism chamber panel 1 to enable one of the load switch operation hole 11 or the grounding switch operation hole 12 to be exposed, so that a user can conveniently plug an operation handle into the load switch operation hole 11 or the grounding switch operation hole 12; the interlocking slide 3 is provided with a second sliding groove 32, the mechanism chamber panel 1 is provided with a slide limiting shaft 14, the slide limiting shaft 14 is positioned in the second sliding groove 32, the interlocking slide 3 is slidably connected with the mechanism chamber panel 1, and the interlocking slide 3 is slidably connected with the interlocking baffle 2, when the interlocking slide 3 slides relative to the mechanism chamber panel 1, the interlocking slide 3 can drive the interlocking baffle 2 to rotate relative to the mechanism chamber panel 1 so as to expose the load switch operation hole 11 or the grounding switch operation hole 12; the mechanism interlocking fixing frame 4 is connected with the mechanism room panel 1, the mechanism interlocking fixing frame 4 is provided with three locking holes 41, when the interlocking sliding sheets 3 are positioned at different positions, the different locking holes 41 are matched with the through holes 33 on the interlocking sliding sheets 3, and the locking pieces 5 are arranged in the locking holes 41 and the through holes 33 in a penetrating manner, so that the interlocking sliding sheets 3 are fixed with the mechanism interlocking fixing frame 4 in position, and the movement of the interlocking sliding sheets 3 relative to the mechanism room panel 1 is limited. The three-station switch operating mechanism interlocking device 100 has the advantages of simple mechanism, less transmission links, low cost and convenient operation.
The specific structure of the respective components of the three-position switch operating mechanism interlock 100 and the positional relationship with each other are described in detail below.
As shown in fig. 1 and 2, the mechanism room panel 1 is provided with a load switch operation hole 11 and a ground switch operation hole 12, and a user can insert the operation handle into the load switch operation hole 11 or the ground switch operation hole 12 to perform opening or closing operation on the load switch or to perform opening or closing operation on the ground switch.
In this embodiment, the mechanism room panel 1 is provided with a rotating shaft 13, the interlocking flap 2 is rotatably connected with the mechanism room panel 1 through the rotating shaft 13, the interlocking flap 2 is used for shielding the load switch operation hole 11 and the grounding switch operation hole 12, and the interlocking flap 2 rotates relative to the mechanism room panel 1 to enable the load switch operation hole 11 or the grounding switch operation hole 12 to be exposed. The interlocking slip sheet 3 is slidably connected with the mechanism room panel 1, the interlocking baffle 2 is provided with a transmission shaft 21, the interlocking slip sheet 3 is slidably connected with the interlocking baffle 2, and when the interlocking slip sheet 3 slides relative to the mechanism room panel 1, the interlocking slip sheet 3 can drive the transmission shaft 21 to move relative to the mechanism room panel 1, so that the interlocking baffle 2 rotates relative to the mechanism room panel 1.
As shown in fig. 1, the interlocking flap 2 includes a first link 22, a second link 23, a third link 24, and a fourth link 25, the first link 22, the second link 23, and the third link 24 are arranged side by side in the width direction of the mechanism room panel 1, and the fourth link 25 is connected to the first link 22, the second link 23, and the third link 24, respectively, and forms a chevron structure. The first connecting piece 22 is arranged corresponding to the load switch operation hole 11, the third connecting piece 24 is arranged corresponding to the grounding switch operation hole 12, the rotating shaft 13 is rotatably connected with the second connecting piece 23, the transmission shaft 21 is positioned on the second connecting piece 23, and the transmission shaft 21 is far away from the fourth connecting piece 25 relative to the rotating shaft 13.
The interlocking flap 2 has three states, namely a first state, a second state and a third state.
When the interlocking baffle 2 is in the first state, as shown in fig. 1, the first connecting piece 22 shields the load switch operation hole 11, the third connecting piece 24 shields the grounding switch operation hole 12, at this time, the mechanism operation handle cannot be inserted into the two operation holes, the mechanism cannot be operated, and misoperation such as manual misoperation of the load switch and the on-load operation grounding switch under normal running conditions is prevented.
When the interlocking flap 2 is in the second state, as shown in fig. 3, the first connector 22 is offset from the load switch operation hole 11, the load switch operation hole 11 is exposed, the third connector 24 shields the ground switch operation hole 12, and at this time, the mechanism operation handle can be inserted into the load switch operation hole 11 of the mechanism chamber panel 1, and the opening or closing operation can be performed on the load switch.
When the interlocking flap 2 is in the third state, as shown in fig. 4, the first connector 22 shields the load switch operation hole 11, the third connector 24 is offset from the ground switch operation hole 12, and the ground switch operation hole 12 is exposed, and at this time, the mechanism operation handle can be inserted into the ground switch operation hole 12 of the mechanism chamber panel 1, and the ground switch can be opened or closed.
In order to ensure that one of the load switch operation hole 11 or the ground switch operation hole 12 is in a blocking state when the interlocking flap 2 rotates, the first connecting piece 22 comprises a first arc section 221, the first arc section 221 is positioned on one side of the first connecting piece 22 far away from the second connecting piece 23, and the center of the first arc section 221 is positioned at the center of the rotating shaft; the third connecting piece 24 comprises a second arc segment 241, the second arc segment 241 is located on one side of the third connecting piece 24 away from the second connecting piece 23, and the center of the second arc segment 241 is located at the center of the rotating shaft 13. The arrangement of the first arc segment 221 and the second arc segment 241 can ensure that the first connecting piece 22 can shield the load switch operation hole 11 or the third connecting piece 24 can shield the ground switch operation hole 12 in the rotation process of the interlocking baffle 2 relative to the mechanism chamber panel 1, so that at least one of the load switch operation hole 11 or the ground switch operation hole 12 is in a shielding state.
Further, in order to ensure the connection strength of the first, second, third and fourth connection members 22, 23, 24 and 25, the first, second, third and fourth connection members 22, 23, 24 and 25 are integrally formed.
In this embodiment, the interlocking slide 3 is provided with a first chute 31 and two second chutes 32, the direction of the connection line of the load switch operation hole 11 and the grounding switch operation hole 12 is defined as the reference direction, the first chute 31 is perpendicular to the reference direction, and the transmission shaft 21 is slidably disposed in the first chute 31; the two second sliding grooves 32 are distributed at intervals along the reference direction, the second sliding grooves 32 extend along the reference direction, the mechanism chamber panel 1 is provided with two sliding vane limiting shafts 14 corresponding to the second sliding grooves 32, and the sliding vane limiting shafts 14 are located in the second sliding grooves 32. When the interlock slide 3 slides in the reference direction to the mechanism chamber panel 1 to the limit position (a position where the slide limit shaft 14 abuts on the groove wall of the second slide groove 32 of the interlock slide 3 and the interlock slide 3 cannot move in the reference direction), one of the load switch operation hole 11 and the ground switch operation hole 12 is exposed.
When the interlocking baffle 2 is in the first state, the sliding vane limiting shaft 14 is positioned in the middle of the second sliding groove 32; when the interlocking baffle 2 is in the second state, the slide limiting shaft 14 is positioned at one end of the second chute 32 close to the grounding switch operation hole 12; when the interlocking flap 2 is in the third state, the slide limiting shaft 14 is located at one end of the second chute 32 near the load switch operation hole 11.
In order to prevent the interlocking tab 2 and the interlocking slide 3 from falling off, in this embodiment, the three-position switch operating mechanism interlocking device 100 further includes a plurality of self-locking nuts 52, and the plurality of self-locking nuts 52 are respectively engaged with the rotating shaft 13, the transmission shaft 21 and the slide limiting shaft 14.
The mechanism interlocking fixing frame 4 is connected with the mechanism room panel 1, and as shown in fig. 5 and 6, the mechanism interlocking fixing frame 4 is provided with three locking holes 41, and the interlocking slide sheet 3 is provided with a through hole 33 matched with one of the locking holes 41, and the through hole 33 is matched with one of the locking holes 41. The three locking holes 41 are a first locking hole 42, a second locking hole 43, and a third locking hole 44, respectively, the second locking hole 43 is located between the first locking hole 42 and the third locking hole 44, the first locking hole 42 corresponds to the load switch operation hole 11, and the third locking hole 44 corresponds to the ground switch operation hole 12. When the interlock flap 2 is rotated relative to the mechanism chamber panel 1 until the load switch operation hole 11 or the ground switch operation hole 12 is exposed, the through hole 33 is engaged with the first locking hole 42 or the second locking hole 43.
The mechanism interlocking fixing frame 4 is movably connected with the mechanism room panel 1, as shown in fig. 7 and 8, the mechanism room panel 1 is provided with a limiting hole 15, the limiting hole 15 extends along a reference direction, the mechanism interlocking fixing frame 4 is arranged in the limiting hole 15 in a penetrating manner, the mechanism interlocking fixing frame 4 comprises a limiting part 45, the width of the limiting part 45 is larger than the length of the limiting hole 15, and the limiting part 45 and the locking hole 41 are respectively positioned on two sides of the mechanism room panel 1. The interlocking slide 3 comprises a connecting part 34 matched with the mechanism interlocking fixing frame 4, the connecting part 34 is perpendicular to the mechanism chamber panel 1, the connecting part 34 is slidably arranged in the limiting hole 15, the through hole 33 is positioned in the connecting part 34, and when the connecting part 34 slides relative to the mechanism chamber panel 1, the through hole 33 is matched with different locking holes 41.
The locking piece 5 is respectively connected with the mechanism interlocking fixing frame 4 and the interlocking sliding sheet 3, the locking piece 5 is arranged in the through hole 33 and the locking hole 41 in a penetrating mode, and the locking piece 5 is used for limiting the interlocking sliding sheet 3 to move relative to the mechanism interlocking fixing frame 4.
As an alternative mode of this embodiment, the locking member 5 is a padlock, which can ensure the locking state of the interlocking slide 3 and the mechanism interlocking fixing frame 4, and is convenient to open, so as to improve the connection flexibility of the interlocking slide 3 and the mechanism interlocking fixing frame 4.
The working principle of the embodiment of the invention is as follows:
as shown in fig. 1, when the load switch is in a closing state, the interlocking baffle 2 is in a middle position when the switch device is in normal power supply operation, and the interlocking baffle 2 is locked in position through the second locking hole 43 of the padlock and the mechanism interlocking fixing frame 4, so that the interlocking baffle 2 cannot rotate, at the moment, the interlocking baffle 2 covers the load switch operation hole 11 and the grounding switch operation hole 12 on the mechanism chamber panel 1 at the same time, the mechanism operation handle cannot be inserted into the two operation holes, the mechanism cannot be operated, and misoperation such as manual misoperation of separating the load switch and the grounding switch with load operation under normal operation conditions is prevented;
as shown in fig. 3, when the load switch needs to be switched on or off, the padlock is unlocked, the interlocking slide 3 is moved rightward (in the direction shown in the figure), the interlocking baffle 2 rotates anticlockwise around the rotating shaft 13 under the action of the interlocking slide 3 and the transmission shaft 21, the load switch operation hole 11 on the mechanism chamber panel 1 is completely exposed, at this time, the mechanism operation handle can be inserted into the load switch operation hole 11 of the mechanism chamber panel 1, and the load switch can be switched on or off, in this process, the ground switch operation hole 12 of the mechanism chamber panel 1 is always in a state of being covered by the interlocking baffle 2;
as shown in fig. 4, when the grounding switch needs to be switched on or off, the padlock is unlocked, the interlocking slide 3 is moved leftwards (in the direction shown in the figure), the interlocking baffle 2 rotates clockwise around the rotating shaft 13 under the action of the interlocking slide 3 and the transmission shaft 21, the grounding switch operating hole 12 on the mechanism chamber panel 1 is completely exposed, at this time, the mechanism operating handle can be inserted into the grounding switch operating hole 12 of the mechanism chamber panel 1, and the grounding switch can be switched on or off, and in this process, the load switch operating hole 11 of the mechanism chamber panel 1 is always in a state of being covered by the interlocking baffle 2;
when equipment needs to be overhauled, after the grounding switch is in a closing state, as shown in fig. 1, the interlocking slide sheet 3 is moved to the middle position, so that the interlocking slide sheet 3 is fixedly connected with the second locking hole 43 of the mechanism interlocking fixing frame 4 through a padlock, at the moment, the interlocking slide sheet 3 cannot move left and right, the grounding switch operation hole 12 and the load switch operation hole 11 on the mechanism chamber panel 1 are all covered by the interlocking slide sheet 3, the mechanism operation handle cannot be inserted into the grounding switch operation hole 12 and the load switch operation hole 11 of the mechanism chamber panel 1, the mechanism cannot be operated, and the situation that under the state that a cable chamber door is opened, an artificial error grounding switch and an error closing load switch are prevented, so that overhauling staff lose grounding protection and enter an electrified interval is avoided, and personnel casualties and equipment burnout are caused.
The three-station switch operating mechanism interlocking device 100 has the beneficial effects that:
1. the problems of complex structure, large occupied space and high cost of the traditional scheme are solved;
2. solves the problems of excessive transmission links, easy blocking and difficult operation of the traditional structure.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The interlocking device of the three-station switch operating mechanism is characterized by comprising a mechanism chamber panel, an interlocking baffle, an interlocking sliding sheet, a mechanism interlocking fixing frame and a locking piece;
the mechanism chamber panel is provided with a load switch operation hole and a grounding switch operation hole;
the interlocking baffle is rotatably connected with the mechanism chamber panel through a rotating shaft and used for shielding the load switch operation hole and the grounding switch operation hole, and the interlocking baffle rotates relative to the mechanism chamber panel to enable the load switch operation hole or the grounding switch operation hole to be exposed;
the interlocking slide sheet is slidably connected with the mechanism room panel, the interlocking baffle sheet is provided with a transmission shaft, the interlocking slide sheet is slidably connected with the interlocking baffle sheet through the transmission shaft, and the interlocking slide sheet can drive the interlocking baffle sheet to rotate relative to the mechanism room panel when sliding relative to the mechanism room panel;
the mechanism interlocking fixing frame is connected with the mechanism chamber panel, three locking holes are formed in the mechanism interlocking fixing frame, through holes matched with the locking holes are formed in the interlocking sliding sheets, and the through holes are matched with one of the locking holes;
the locking piece is respectively connected with the mechanism interlocking fixing frame and the interlocking sliding piece, penetrates through the through hole and the locking hole, and is used for limiting the interlocking sliding piece to move relative to the mechanism interlocking fixing frame;
the device comprises a mechanism chamber panel, a transmission shaft, a first sliding chute, a second sliding chute, a mechanism chamber panel, a ground switch operation hole, a transmission shaft, a mechanism chamber panel and a mechanism, wherein the linkage sliding chute is provided with a first sliding chute and two second sliding chutes, the direction of a connecting line of the load switch operation hole and the ground switch operation hole is a reference direction, the first sliding chute is arranged along a direction perpendicular to the reference direction, the transmission shaft is slidably arranged in the first sliding chute, the two second sliding chutes are distributed at intervals along the reference direction, the second sliding chute extends along the reference direction, and the mechanism chamber panel is provided with two sliding chute limiting shafts corresponding to the second sliding chute and positioned in the second sliding chute;
when the interlocking slide sheet slides to a limit position relative to the mechanism chamber panel along the reference direction, one of the load switch operation hole or the grounding switch operation hole is exposed, and the through hole is matched with one of the locking holes;
the interlocking separation blade comprises a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece, wherein the first connecting piece, the second connecting piece and the third connecting piece are distributed side by side along the width direction of the mechanism chamber panel, the fourth connecting piece is respectively connected with the first connecting piece, the second connecting piece and the third connecting piece to form a mountain-shaped mechanism, the rotating shaft is mounted on the mechanism chamber panel, the rotating shaft is rotatably connected with the second connecting piece, the first connecting piece is correspondingly arranged with the load switch operation hole, the third connecting piece is correspondingly arranged with the ground switch operation hole, the transmission shaft is positioned on the second connecting piece, and the transmission shaft is far away from the fourth connecting piece relative to the rotating shaft;
the first connecting piece comprises a first arc section, the first arc section is positioned on one side of the first connecting piece far away from the second connecting piece, and the circle center of the first arc section is positioned at the center of the rotating shaft;
the third connecting piece comprises a second arc section, the second arc section is positioned on one side, far away from the second connecting piece, of the third connecting piece, and the circle center of the second arc section is positioned at the center of the rotating shaft.
2. The three-position switch operating mechanism interlock of claim 1 wherein the three locking holes are a first locking hole, a second locking hole and a third locking hole, respectively, the second locking hole being located between the first locking hole and the third locking hole, the first locking hole corresponding to the load switch operating hole, the third locking hole corresponding to the ground switch operating hole, the through hole being mated with the first locking hole or the third locking hole when the interlock flap is rotated relative to the mechanism compartment panel to the load switch operating hole or the ground switch operating hole is exposed.
3. The three-position switch operating mechanism interlock of claim 1 wherein the interlock tab has three states, the three states being a first state, a second state and a third state, respectively;
when the interlocking baffle is in the first state, the first connecting piece shields the load switch operation hole, and the third connecting piece shields the grounding switch operation hole;
when the interlocking baffle is in the second state, the first connecting piece and the load switch operation hole are staggered, the load switch operation hole is exposed, and the third connecting piece shields the grounding switch operation hole;
when the interlocking baffle is in a third state, the first connecting piece shields the load switch operation hole, the third connecting piece is staggered with the grounding switch operation hole, and the grounding switch operation hole is exposed.
4. The three-position switch operating mechanism interlock of claim 1 wherein said first connector, said second connector, said third connector and said fourth connector are integrally formed.
5. The three-station switch operating mechanism interlocking device according to claim 1, wherein the mechanism interlocking fixing frame is movably connected with the mechanism chamber panel, the mechanism chamber panel is provided with a limiting hole, the limiting hole extends along the reference direction, the mechanism interlocking fixing frame is arranged in the limiting hole in a penetrating manner, the mechanism interlocking fixing frame comprises a limiting part, the width of the limiting part is larger than the length of the limiting hole, and the limiting part and the locking hole are respectively positioned at two sides of the mechanism chamber panel;
the interlocking slip sheet comprises a connecting part which is used for being matched with the interlocking fixing frame of the mechanism, the connecting part is perpendicular to the mechanism chamber panel, the connecting part is slidably arranged in the limiting hole, and the through hole is positioned in the connecting part.
6. The three-position switch operating mechanism interlock of claim 1 further comprising a plurality of self-locking nuts respectively mated with the shaft, the drive shaft and the slide limiting shaft.
7. The three-position switch operating mechanism interlock of claim 1 wherein said locking member is a padlock.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810629161.5A CN108538676B (en) | 2018-06-19 | 2018-06-19 | Three-station switch operating mechanism interlocking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810629161.5A CN108538676B (en) | 2018-06-19 | 2018-06-19 | Three-station switch operating mechanism interlocking device |
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| CN108538676A CN108538676A (en) | 2018-09-14 |
| CN108538676B true CN108538676B (en) | 2023-12-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112289620B (en) * | 2019-07-23 | 2023-12-05 | 武汉倍诺德开关有限公司 | Three-station isolating switch |
| CN110571075B (en) * | 2019-09-06 | 2024-04-16 | 江苏大全长江电器股份有限公司 | Misoperation-preventing three-station switch interlocking device for medium-high voltage power switch equipment |
| CN114823214B (en) * | 2022-04-14 | 2022-12-16 | 山东泰开成套电器有限公司 | Disconnecting link type three-position isolating switch for gas-filled cabinet and use method thereof |
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| CN108538676A (en) | 2018-09-14 |
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