CN206271582U - Door interlocking device for nitrogen switch cabinet - Google Patents
Door interlocking device for nitrogen switch cabinet Download PDFInfo
- Publication number
- CN206271582U CN206271582U CN201621207889.1U CN201621207889U CN206271582U CN 206271582 U CN206271582 U CN 206271582U CN 201621207889 U CN201621207889 U CN 201621207889U CN 206271582 U CN206271582 U CN 206271582U
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- ground connection
- sliding block
- plectrum
- spring
- connecting rod
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052757 nitrogen Inorganic materials 0.000 title claims description 24
- 238000002955 isolation Methods 0.000 claims abstract description 30
- 238000005452 bending Methods 0.000 claims description 25
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 11
- 238000000926 separation method Methods 0.000 abstract 6
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000284 extract Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a door interlock for nitrogen gas cubical switchboard, includes isolation operation axle separation blade (1), keeps apart connecting lever (2), isolation connecting rod (16), ground connection operation axle separation blade (7), ground connection connecting lever (8), first ground connecting rod (12), second ground connecting rod (14), plectrum (3), first slider (5), spring block (9), stationary blade (4), spring (17), second slider (10), abnormal shape rotating member (11), vacuum interrupter gleitbretter (15), vacuum interrupter output connecting lever (13), door (18), first draw-in groove (19), second draw-in groove (20). The shifting sheet (3) can be shifted up and down to drive the separation operation shaft separation blade (1) and the grounding operation shaft separation blade (7) to move, so that the operability of the separation main shaft and the grounding main shaft is influenced. The utility model discloses can guarantee isolator operation process's safe and reliable.
Description
Technical field
The utility model belongs to technical field of electric equipment, particularly electric switch manufacture field, and in particular to Yi Zhongkai
Close the door interlock of cabinet.
Background technology
Because SF6 gases are decided to be restricted greenhouse gases, thus tried one's best control its consumption in High-voltage Switchgear Industry
With discharge.So be badly in need of a kind of new non-SF6 gas inflateds cabinet, and a kind of nitrogen cabinet to be shell be filled with lower pressure (0.1~
0.5mpa) the gas-filling cabinet of nitrogen.It is safe and reliable in order to ensure environmentally friendly gas inflated ring main unit operating process, now provide a kind of
For the door interlock of nitrogen switch cubicle, being grounded under switch closed condition could open cabinet door, and earthed switch is not closed
When cabinet door cannot open, while realizing that cabinet door could operational grounding main shaft only under OFF state.Prior art is typically used
The mode of wire rope transfers stroke, steel wire rope is flexible to cause stroke to be forbidden with stretching, while the mounting means of door is direct top
Firmly so as to influence steel wire rope, by wire rope transfers stroke, so as to clasp door, this mounting means can cause door-plate to install to roller
Cooperation in journey with cabinet is forbidden, because force is different stroke can be caused inaccurate while withstanding roller.And the door that there is presently provided
Interlocking, rigid slide plate is controlled by mechanism to clasp door, and position is accurate, and the mounting means of door is hung from above in bullet by by door
On spring sliding block, self gravitation controls the door-plate sagging vertically, so as to coordinate accurate with cabinet.
Utility model content
The utility model provides a kind of door interlock for nitrogen cabinet in order to solve problem above, now, is grounded
Cabinet door could be opened under switch closed condition, cabinet door cannot be opened when earthed switch is not closed, while realizing that cabinet door is only being closed
Could operational grounding main shaft under upper state.
The utility model specifically uses following technical scheme：
A kind of door interlock for nitrogen switch cubicle, including isolated operation axle bumper piece 1, isolation connecting lever 2, spacer link
16th, ground connection operating shaft catch 7, earthed crank arm 8, the first ground connection ground connection of connecting rod 12, second connecting rod 14, plectrum 3, the first sliding block 5, rolling
Pearl axle 6, spring block 9, stator 4, spring 17, the second sliding block 10, special-shaped revolving part 11, vacuum interrupter slide plate 15, vacuum
Arc-chutes output toggle arm 13, door 18, the first draw-in groove 19, the second draw-in groove 20.It is characterized in that：
Plectrum 3 is connected with isolated operation axle bumper piece 1, ground connection operating shaft catch 7, constitutes a linkage；Plectrum 3 and first is slided
Block 5 is connected, and stirring up and down for plectrum 3 can drive the first sliding block 5 to move up and down；Isolation connecting lever 2, spacer link 16, vacuum extinction
Room slide plate 15 constitutes a linkage；The ground connection ground connection of connecting rod 12, second of earthed crank arm 8, first connecting rod 14, vacuum interrupter slide plate 15
Constitute a linkage；First ground connection connecting rod 12, special-shaped revolving part 11, the second sliding block 10 constitute a linkage；Spring block 9 with it is solid
Stator 4 is connected by spring 17.
Door 18 is provided with the first draw-in groove 19, the second draw-in groove 20, is respectively clamped into spring block 9, the second sliding block 10.
The utility model further includes following preferred scheme：
The one end of spring 17 is connected with stator 4, and the other end is connected with spring block 9；Stator 4, the first sliding block 5, spring
The three of sliding block 9 is connected by ball axle 6, axle 21, and its axis 21 is fixed in the circular hole of stator 4 therefore immovable, and ball axle 6 is put
In in the slotted hole of stator 4, therefore can transverse shifting.
Isolated operation axle bumper piece 1 is provided with isolated operation axle bumper disk rotating shaft 22, isolated operation axle bumper piece rotational axis 23
It is located in the upper end holes of plectrum 3 respectively；Ground connection operating shaft catch 7 is provided with ground connection operating shaft catch rotary shaft 24, isolated operation
Axle bumper piece rotational axis 25 are located in the lower end holes of plectrum 3 respectively.
The plectrum 3 is dialed up, and drives the motion upwards of isolated operation axle bumper piece rotational axis 23, makes isolated operation axle bumper
Piece 1 is rotated around isolated operation axle bumper disk rotating shaft 22, and isolated operation hole 26 is not isolated operating shaft catch 1 and blocks, and isolates main shaft
It is operable；Plectrum 3 is stirred downwards, drives the motion upwards of grounding shaft catch rotational axis 25, makes ground connection operating shaft catch 7 around ground connection
Operating shaft catch rotary shaft 24 is rotated, and ground connection handle hole 27 is not grounded operating shaft catch 7 and blocks, and ground connection main shaft is operable；
The plectrum 3 is provided with three sections of bending parts of upper, middle and lower.
The one end of spacer link 16 is connected with connecting lever 2 is isolated, and the other end is connected with vacuum interrupter slide plate 15 and holds thereon
Motion in arc slotted hole；
The isolation connecting lever 2 is provided with one section of bending part；
First ground connection one end of connecting rod 12 is connected with the one end of earthed crank arm 8, and the other end is connected simultaneously with vacuum interrupter slide plate 15
Moved in its lower end arc slotted hole；Second ground connection one end of connecting rod 14 is connected with the other end of earthed crank arm 8, the other end and vacuum
Arc-chutes slide plate 15, vacuum interrupter output toggle arm 13 are connected；
The earthed crank arm 8 is provided with one section of bending part.
Under normal condition, plectrum 3 is in an intermediate position；
Bending part in the middle of plectrum 3 is connected with the first sliding block 5, moves together；
When the bending part in disconnecting switch closure, isolation connecting lever 2 bumps against with the upper end bending part of plectrum 3, hinder plectrum 3 downward
Motion, thus cannot operational grounding main shaft close it；
When earthed switch closure, the bending part on earthed crank arm 8 bump against with the lower end bending part of plectrum 3, hinder plectrum 3 upward
Motion, thus cannot operation isolation main shaft close it.
Isolated operation hole 26 is offered on isolation connecting lever 2, isolated operation hole 26 is used to match rotatable handle isolation main shaft
So as to disconnecting switch operation；
Ground connection handle hole 27 is offered on earthed crank arm 8, ground connection handle hole 27 is used to match rotatable handle ground connection main shaft
So as to operational grounding switch.
Special-shaped revolving part 11 is rotatable around circular hole；The one end of special-shaped revolving part 11 is placed in the slotted eye of the first ground connection connecting rod 12,
The other end is placed in the slotted eye of the second sliding block 10, therefore the first ground connection motion of connecting rod 12 can drive special-shaped revolving part 11 to rotate, so that
The second sliding block 10 is driven to move；
When the first draw-in groove 19 on door 18 is linked into spring block 9, due to the gravity of door 18, spring block 9 is moved downward, bullet
Spring 17 is elongated；
The first draw-in groove 19 on door 18 is not when being linked into spring block 9, and spring 17 restores to the original state upward resilience, drives spring to slide
Block 9 is moved upwards, and in the arc slotted hole being placed on spring block 9 due to ball axle 6, therefore ball axle 6 is forced transverse movement, card
Enter in the semicircle draw-in groove of the first sliding block 5, the first sliding block 5 is dead by button, it is impossible to move, because the first sliding block 5 is connected with plectrum 3, this
When plectrum can not be stirred about 3, it is impossible to rotate isolation main shaft with ground connection main shaft come disconnecting switch operation and earthed switch so that
Remain off disconnecting switch, earthed switch is kept closed.
During operational grounding main shaft, the first ground connection connecting rod 12 is moved, and drives the second sliding block 10 to move, so as to influence the
The position of two sliding blocks 10.If ground connection disconnects closure, the second sliding block 10 is moved backward；If earthed switch disconnects, the second sliding block
10 travel forward, and stretch into the second draw-in groove 20, and knocker is dead.
The utility model has following beneficial technique effect：
Firstth, whole linkage structure is simple, and accurate quick errorless；
Secondth, this it is chain both ensure that in operating process it is safe and reliable, also ensure that the safe and reliable of maintenance process；
3rd, there is protective effect to whole nitrogen cabinet to a certain extent, while having ensured operating personnel and maintenance personal
's
Life security.
Brief description of the drawings
Fig. 1 is the door interlock overall structure diagram that utility model is used for nitrogen switch cubicle；
Fig. 2 is that utility model (is kept apart for the door interlock of nitrogen switch cubicle under switch cubicle normal operating conditions
Close and close, earthed switch disconnects) overall structure diagram；
Wherein 2-1 is front view, and 2-2 is rearview, and 2-3 is 3 dimensional drawing；
Fig. 3 is the schematic diagram of door interlock cabinet door 18 that utility model is used for nitrogen switch cubicle；
Wherein 3-1 is front view, and 3-2 is rearview, and 3-3 is side view；
Fig. 4 is isolated operation axle bumper piece 1, the ground connection operating shaft catch 7, three of plectrum 3 linkage schematic diagram；
Wherein 4-1 is rearview, and 4-2 is backsight graphics, and 4-3 is forward sight graphics；
Fig. 5 is that the position of the parts such as stator 4, the first sliding block 5, spring block 9, plectrum 3, ball axle 6, spring 17 is illustrated
Figure；
Wherein 5-1 is rearview, and 5-2 is backsight graphics；
Fig. 6 is the first ground connection connecting rod 12, special-shaped revolving part 11, the three of the second sliding block 10 linkage schematic diagram.
Specific embodiment
The technical solution of the utility model is further described in detail with reference to Figure of description.
It is as shown in Figure 1 a kind of overall structure diagram of door interlock for nitrogen switch cubicle, disclosure
The door interlock for nitrogen switch cubicle include isolated operation axle bumper piece 1, isolation connecting lever 2, spacer link 16, ground connection operation
Axle bumper piece 7, the ground connection ground connection of connecting rod 12, second of earthed crank arm 8, first connecting rod 14, plectrum 3, the first sliding block 5, ball axle 6, spring
Sliding block 9, stator 4, spring 17, the second sliding block 10, special-shaped revolving part 11, the output of vacuum interrupter slide plate 15, vacuum interrupter
Connecting lever 13.Plectrum 3 is connected with isolated operation axle bumper piece 1, ground connection operating shaft catch 7, constitutes a linkage；Plectrum 3 and first is slided
Block 5 is connected, and stirring up and down for plectrum 3 can drive the first sliding block 5 to move up and down；Isolation connecting lever 2, spacer link 16, vacuum extinction
Room slide plate 15 constitutes a linkage；The ground connection ground connection of connecting rod 12, second of earthed crank arm 8, first connecting rod 14, vacuum interrupter slide plate 15
Constitute a linkage；First ground connection connecting rod 12, revolving part 11, the second sliding block 10 constitute a linkage；Spring block 9 and stator
4 are connected by spring 17.First ground connection one end of connecting rod 12 is connected with the one end of earthed crank arm 8, the other end and vacuum interrupter slide plate
15 are connected and are moved in its lower end arc slotted hole；Second ground connection one end of connecting rod 14 is connected with the other end of earthed crank arm 8, another
End is connected with vacuum interrupter slide plate 15, vacuum interrupter output toggle arm 13；Revolving part 11 is rotatable around circular hole；Revolving part 11 1
End is placed in the slotted eye of the first ground connection connecting rod 12, and the other end is placed in the slotted eye of the second sliding block 10, therefore the first ground connection connecting rod 12 is transported
It is dynamic that special-shaped revolving part 11 can be driven to rotate, so as to drive the second sliding block 10 to move.The one end of spring 17 is connected with stator 4, another
End is connected with spring block 9；Stator 4, the first sliding block 5, the three of spring block 9 are connected by ball axle 6, axle 21, its axis
21 are fixed in the circular hole of stator 4 therefore immovable, and ball axle 6 is placed in the slotted hole of stator 4, therefore can transverse shifting.
A kind of schematic diagram of door interlock cabinet door 18 for nitrogen switch cubicle is illustrated in figure 3, door 18 is located at switch cubicle
Bottom, maintenance needs to open the door of switch cubicle bottom, and nitrogen cabinet is divided into upper and lower two parts, and upper part is panel, and lower part is door,
Gate interlock is placed in panel rear side.Door 18 is provided with the first draw-in groove 19, the second draw-in groove 20, is respectively used to be linked into spring block 9, snaps in
Second sliding block 10, spring block 9, the second sliding block 10 are all placed in institute's hole-opening position on crossbeam 28.Referring to accompanying drawing 3-1,3-2,3-
3。
It is illustrated in figure 4 isolated operation axle bumper piece 1, the ground connection operating shaft catch 7, three of plectrum 3 linkage schematic diagram；Plectrum 3
Dial up, drive the motion upwards of isolated operation axle bumper piece rotational axis 23, make isolated operation axle bumper piece 1 around isolated operation axle bumper
Disk rotating shaft 22 is rotated, and isolated operation hole 26 is not isolated operating shaft catch 1 and blocks, and isolation main shaft is operable；Plectrum 3 is to setting aside
It is dynamic, the motion upwards of grounding shaft catch rotational axis 25 is driven, make ground connection operating shaft catch 7 around ground connection operating shaft catch rotary shaft 24
Rotate, ground connection handle hole 27 is not grounded operating shaft catch 7 and blocks, and ground connection main shaft is operable；Referring to accompanying drawing 4-1,4-2,4-3.
Under normal operating conditions, disconnecting switch is in closure state, and earthed switch is off, as shown in Fig. 2 in detail
Thin to refer to 2-1,2-2,2-3, the bending part 32 on isolation connecting lever 2 withstands the upper end bending part 29 of plectrum 3, therefore plectrum 3 can not be to
Under stir, so as to the operational grounding main shaft of ground connection operating shaft catch 7 cannot be opened, earthed switch is always maintained at off-state.
Door 18 is in OFF state, and now the first draw-in groove 19 is hung on spring slide plate 9, due to spring slide plate 9 and stator 4
Connected with spring 17, stator 4 is motionless (stator 4 is fixed on inside switch cabinet installing plate by axle 21), then due to door 18
Self gravitation (be linked into spring slide plate 9 in the first draw-in groove 19 of door, stretched, door drop to switch cubicle bottom margin phase
Touch) the reason for spring 17 is stretched downwards, spring block 9 moved downward, and ball axle 6 is placed on the arc slotted hole of spring block 9
Side, position are as shown in figure 5, refer to 5-1,5-2.First ground connection connecting rod 12, revolving part 11, the three of the second sliding block 10 linkage such as Fig. 6
Shown, revolving part 11 is around circular hole (revolving part 11 is transversely mounted plate and is connected by circular hole and inside switch cabinet, and is rotated around circular hole)
It is rotatable；The one end of special-shaped revolving part 11 is placed in the slotted eye of the first ground connection connecting rod 12, and the other end is placed in the slotted eye of the second sliding block 10
It is interior, therefore during operational grounding main shaft, the first ground connection connecting rod 12 is moved, and drives the second sliding block 10 to move, so as to influence second
The one end of revolving part 11, revolving part other end set are inserted in as shown in fig. 6, the first ground connection connecting rod 12 is provided with draw-in groove for the position of sliding block 10
Enter in the hole of the second sliding block 10, the first ground connection connecting rod 12 is moved, and part 11 can be rotated and be rotated around circular hole, so as to drive second
Sliding block 10 is moved forward and backward, and when the second sliding block 10 travels forward exposure mechanism, enters the second draw-in groove 20 in introduction 18, then door is dead by button.
Because earthed switch is remained open, then the second sliding block 10 keeps forward facing position, therefore snaps in and detain extremely door 18 in the second draw-in groove 20, nothing
Method is opened.
Dial up plectrum 3 so that rotating isolated operation axle bumper piece 1 opens isolated operation hole 26, the operation of insertion handle every
Being rotated from main shaft clockwise (backsight) disconnects it, extracts handle, then isolated operation axle bumper piece 1 is closed due to self gravitation effect, again
On, isolated operation hole 26 is blocked, while drive plectrum 3 to return to centre position, now, due to isolation main shaft clockwise (backsight)
Isolate (backsight) motion clockwise of connecting lever 2 in rotation process, therefore the bending part on isolation connecting lever 2 does not withstand the top on plectrum 3
Bending part, therefore plectrum can be stirred about 9；
Continue operation isolation main shaft if still plectrum 3 is dialed up, again close isolation, recover normal work, it is extensive
Again to Fig. 1 positions；If operation is out of order needs maintenance, then plectrum 3 is stirred downwards, so as to rotate ground connection operating shaft catch 7 open
Ground connection handle hole 27, insertion handle operational grounding main shaft clockwise (backsight) is rotated closes it, extracts handle, then ground connection operation
Axle bumper piece 7 is closed again due to self gravitation effect, blocks ground connection handle hole 27, while drive plectrum 3 to return to centre position, this
When, due to (backsight) motion clockwise of earthed crank arm 8 in ground connection main shaft clockwise (backsight) rotation process, therefore on earthed crank arm 8
Bending part withstand bottom fold portion on plectrum 3, plectrum 3 can not be dialed up, therefore non-rotatable isolated operation axle bumper piece 1 dozen
Isolated operation hole 26 is opened, isolation main shaft is inoperable, disconnecting switch is always maintained at off-state, ground connection main shaft clockwise (backsight)
First ground connection connecting rod 12 (backsight) motion to the left in rotation process, drive is stuck in the special-shaped revolving part 11 on the first ground connection connecting rod 12
Rotation, because the other end of special-shaped revolving part 11 is penetrated on the second sliding block 10 in slotted eye, so drive the second sliding block 10 to move backward,
Second sliding block 10 is moved backward, skids off the second draw-in groove 20, and door 18 can be opened；
Door 18 is opened, when the first draw-in groove 19 on door 18 is not linked into spring block 9, spring 17 restores to the original state upward resilience,
Spring block 9 is driven to move upwards, in the arc slotted hole being placed on spring block 9 due to ball axle 6, therefore ball axle 6 is forced
Transverse movement, snaps in the semicircle draw-in groove of the first sliding block 5, and the first sliding block 5 is dead by button, it is impossible to move, due to the first sliding block 5 with dial
Piece 3 is connected, and now plectrum can not be stirred about 3, it is impossible to rotates isolation main shaft and carrys out disconnecting switch operation and connect with ground connection main shaft
Ground switch, so that disconnecting switch is remained off, earthed switch is kept closed, maintenance safety；
Maintenance is completed, and the first draw-in groove 19 on door 18 is linked into spring block 9, and due to the gravity of door 18, spring block 9 is downward
Motion, spring 17 is elongated, and ball axle 6 is forced transverse movement, skids off the semicircle draw-in groove of the first sliding block 5, and the first sliding block 5 is not detained
Extremely, movable, due to earthed switch closure, the bending part on earthed crank arm 8 withstands the bottom fold portion on plectrum 3, and plectrum 3 is not
Can dial up, therefore non-rotatable isolated operation axle bumper piece 1 opens isolated operation hole 26, isolation main shaft is inoperable, keeps apart
Pass is always maintained at off-state；
Plectrum 3 is stirred downwards, so that rotating ground connection operating shaft catch 7 opens ground connection handle hole 27, insertion handle operation connects
Ground main shaft inverse clock (backsight) is rotated disconnects it, extracts handle, then be grounded operating shaft catch 7 because self gravitation effect, is closed again
On, ground connection handle hole 27 is blocked, while drive plectrum 3 to return to centre position, now, due to ground connection main shaft inverse clock (backsight)
(backsight) motion counterclockwise of earthed crank arm 8 in rotation process, the first ground connection connecting rod 12 (backsight) motion to the right, drive is stuck in first
Special-shaped revolving part 11 on ground connection connecting rod 12 rotates, because the other end of special-shaped revolving part 11 is penetrated on the second sliding block 10 in slotted eye,
So driving the second sliding block 10 to travel forward, the second sliding block 10 travels forward, and slips into the second draw-in groove 20, and door 18 is dead by button, can not
Open；
Earthed crank arm 8 rotates, and bending part does not withstand the top fold portion of plectrum 3 thereon, therefore plectrum 3 can fluctuate up and down, if according to
It is old to stir downwards, then continue operational grounding main shaft again, return to previous step；Plectrum 3 is dialed up, operation isolation main shaft makes closure,
Normal operating conditions is returned to again, disconnecting switch is in closure state, and earthed switch is off, on isolation connecting lever
Bending part withstand the upper end bending part of plectrum 3, therefore plectrum 3 can not be stirred downwards, so as to cannot open ground connection operating shaft catch 7 grasp
Make ground connection main shaft, earthed switch is always maintained at off-state, as shown in Fig. 2 refer to 2-1,2-2,2-3 in detail.
Applicant describes in detail and describes with reference to Figure of description to embodiment of the present utility model, but ability
It should be understood that above example is only preferred embodiment of the present utility model, explanation in detail is intended merely to field technique personnel
Reader is helped to more fully understand the utility model spirit, and not to the limitation of the utility model protection domain, conversely, any base
Any improvement or modification made in spirit of the present utility model should all fall within protection domain of the present utility model.
Claims (9)
1. a kind of door interlock for nitrogen switch cubicle, including isolated operation axle bumper piece (1), isolation connecting lever (2), isolation connect
Bar (16), ground connection operating shaft catch (7), earthed crank arm (8), the first ground connection connecting rod (12), the second ground connection connecting rod (14), plectrum
(3), the first sliding block (5), spring block (9), stator (4), spring (17), the second sliding block (10), revolving part (11), vacuum are gone out
Arc chamber slide plate (15), vacuum interrupter output toggle arm (13), door (18), the first draw-in groove (19), the second draw-in groove (20)；Its feature exists
In：
Plectrum (3) is connected with isolated operation axle bumper piece (1), ground connection operating shaft catch (7), constitutes a linkage；
Plectrum (3) is connected with the first sliding block (5), and the first sliding block of the drive (5) of stirring up and down of plectrum (3) moves up and down；
Isolation connecting lever (2), spacer link (16), vacuum interrupter slide plate (15) are sequentially connected one linkage of composition；
First ground connection connecting rod (12), earthed crank arm (8), the second ground connection connecting rod (14), vacuum interrupter slide plate (15) are sequentially connected
Constitute a linkage；
First ground connection connecting rod (12), revolving part (11), the second sliding block (10) are sequentially connected one linkage of composition；
Spring block (9) is connected with stator (4) by spring (17)；
Door (18) is provided with the first draw-in groove (19), the second draw-in groove (20), and spring block (9) is linked into respectively, the second sliding block is snapped in
(10)。
2. the door interlock for nitrogen switch cubicle according to claim 1, it is characterised in that：
Spring (17) one end is connected with stator (4), and the other end is connected with spring block (9)；Stator (4), the first sliding block
(5), spring block (9) three is connected by ball axle (6), axle (21), and its axis (21) is fixed on the circular hole of stator (4)
Interior, ball axle (6) can be placed in the slotted hole of stator (4) transverse shifting, being capable of transverse shifting.
3. the door interlock for nitrogen switch cubicle according to claim 1, it is characterised in that：
Isolated operation axle bumper piece (1) is provided with isolated operation axle bumper disk rotating shaft (22), isolated operation axle bumper piece rotational axis
(23) it is located in the holes of plectrum (3) upper end respectively；Ground connection operating shaft catch (7) is provided with ground connection operating shaft catch rotary shaft
(24), isolated operation axle bumper piece rotational axis (25) are located in the holes of plectrum (3) lower end respectively；
The plectrum (3) is provided with three sections of bending parts of upper, middle and lower.
4. the door interlock for nitrogen switch cubicle according to claim 3, it is characterised in that：
Spacer link (16) one end is connected with connecting lever (2) is isolated, and the other end is connected and thereon with vacuum interrupter slide plate (15)
Motion in the arc slotted hole of end；
Isolation connecting lever (2) is provided with one section of bending part；
First ground connection connecting rod (12) one end is connected with one end of earthed crank arm (8), the other end and vacuum interrupter slide plate (15) phase
Even and in its lower end arc slotted hole move；
Second ground connection connecting rod (14) one end is connected with the other end of earthed crank arm (8), the other end and vacuum interrupter slide plate (15),
Vacuum interrupter output toggle arm (13) is connected；
The earthed crank arm (8) is provided with one section of bending part.
5. the door interlock for nitrogen switch cubicle according to claim 4, it is characterised in that：
Under normal condition, plectrum (3) is in an intermediate position；
Bending part in the middle of plectrum (3) is connected with the first sliding block (5), moves together；
When disconnecting switch closure, the bending part in isolation connecting lever (2) bump against with plectrum (3) upper end bending part, hinder plectrum (3) to
Lower motion, it is impossible to which operational grounding main shaft closes it；
When earthed switch closure, bending part on earthed crank arm (8) bump against with plectrum (3) lower end bending part, hinder plectrum (3) to
Upper motion, it is impossible to which operation isolation main shaft closes it.
6. the door interlock for nitrogen switch cubicle according to claim 4, it is characterised in that：
The isolated operation hole (26) for isolating main shaft for matching rotatable handle is offered in isolation connecting lever (2)；
The ground connection handle hole (27) that main shaft is grounded for matching rotatable handle is offered on earthed crank arm (8).
7. the door interlock for nitrogen switch cubicle according to claim 4, it is characterised in that：
Revolving part (11) one end is placed in the slotted eye of the first ground connection connecting rod (12), and the other end is placed in the slotted eye of the second sliding block (10)
Interior, the first ground connection connecting rod (12) motion drives special-shaped revolving part (11) to rotate, and then drives the second sliding block (10) motion.
8. the door interlock for nitrogen switch cubicle according to claim 2 or 7, it is characterised in that：
When the first draw-in groove (19) on door (18) is linked into spring block (9), spring block (9) is moved downward, and spring (17) is drawn
It is long；
When the first draw-in groove (19) on door (18) is not linked into spring block (9), the upward resilience of spring (17) reinstatement, band is moved
Spring sliding block (9) is moved upwards, in the arc slotted hole that ball axle (6) is placed on spring block (9), is forced transverse movement, is snapped in
In first sliding block (5) semicircle draw-in groove, the first sliding block (5) is dead by button；Remain off disconnecting switch, earthed switch keeps
Closure state.
9. the door interlock for nitrogen switch cubicle according to claim 8, it is characterised in that：
During operational grounding main shaft, the first ground connection connecting rod (12) motion drives the second sliding block (10) motion；If ground connection disconnects
Closure, then the second sliding block (10) is moved backward；If earthed switch disconnects, the second sliding block (10) travels forward, and stretches into the second card
It is in groove (20), knocker is dead.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207889.1U CN206271582U (en) | 2016-11-09 | 2016-11-09 | Door interlocking device for nitrogen switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207889.1U CN206271582U (en) | 2016-11-09 | 2016-11-09 | Door interlocking device for nitrogen switch cabinet |
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| CN206271582U true CN206271582U (en) | 2017-06-20 |
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| CN201621207889.1U Active CN206271582U (en) | 2016-11-09 | 2016-11-09 | Door interlocking device for nitrogen switch cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373805A (en) * | 2016-11-09 | 2017-02-01 | 南方电网科学研究院有限责任公司 | Door interlocking device for nitrogen switch cabinet |
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2016
- 2016-11-09 CN CN201621207889.1U patent/CN206271582U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373805A (en) * | 2016-11-09 | 2017-02-01 | 南方电网科学研究院有限责任公司 | Door interlocking device for nitrogen switch cabinet |
| CN106373805B (en) * | 2016-11-09 | 2019-07-23 | 南方电网科学研究院有限责任公司 | Door interlocking device for nitrogen switch cabinet |
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