CN107546062A - A kind of ZW20 disconnecting switch - Google Patents
A kind of ZW20 disconnecting switch Download PDFInfo
- Publication number
- CN107546062A CN107546062A CN201710858770.3A CN201710858770A CN107546062A CN 107546062 A CN107546062 A CN 107546062A CN 201710858770 A CN201710858770 A CN 201710858770A CN 107546062 A CN107546062 A CN 107546062A
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- disconnecting switch
- base
- knife plate
- knife
- main shaft
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Abstract
The invention discloses a kind of ZW20 disconnecting switch of interlock, belongs to outdoor aerial distribution line technical field.Disconnecting switch includes interlock assembly, main shaft, base, supporting insulator, moving contact, knife plate assembling, insulated tension pole, static contact；Main shaft is before tube chamber welds with base finishes in advance in base, supporting insulator is bolted on base, dynamic and static contact is arranged in supporting insulator, two knife plates, which with special bolt and stage clip assemble, compresses the contact pressure value that ensure that needs, interlock system ensure that the disconnecting switch that breaker is not opened in closing position under "on" position, and also not close the disconnecting switch under gate-dividing state.
Description
Technical field
The present invention relates to a kind of disconnecting switch, and in particular to a kind of ZW20 disconnecting switch of interlock, belongs to outdoor frame
Overhand lines technical field.
Background technology
Disconnecting switch provides the visible isolation fracture of safety for overhead distribution, convenient to overhaul therefore extensive
Applied to outdoor aerial circuit.Wherein ZW20 on-pole switch disconnecting switch application is especially extensive.The ZW20 on-pole switch of in the market
Disconnecting switch generally existing problems with：If directly leading out gag lever post from ZW20 on-pole switch divide-shut brake pointers, exist spacing
It is inaccurate, the shortcomings that spacing strength is more weak, connect if drawing gag lever post from ZW20 on-pole switch divide-shut brake pointers and passing through four
Bar is changed, and is rotated by limiting the limited block on main shaft to limit the rotation of disconnecting switch, its mode is present when operating physical force is larger
When, the limited block active force downward to interlocking shaft is excessive and interlocking shaft is down offset, and does not reach the effect of limiting locking.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of high reliability interlock
ZW20 disconnecting switch.
Technical scheme：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of ZW20 disconnecting switch, it is characterised in that：Including interlock assembly, main shaft, base, supporting insulator, moving contact, knife plate
Assembling, insulated tension pole, static contact；
The through hole for installing main shaft and interlock assembly is reserved with the base, main shaft is installed through on base, the master
The pull bar hinged seat for being connected with insulated tension pole is provided with axle, the bottom of insulated tension pole is connected by pull bar hinged seat and main shaft
Connect, the top of insulated tension pole is connected to knife plate fit on；
The bottom of supporting insulator is fixed on base, and static contact is fixedly mounted between a supporting insulator and knife plate assembling,
Moving contact is arranged on the top of another supporting insulator, and positioned at the underface of knife plate assembling；
Interlocking shaft is provided with the interlock assembly, correspondence position is provided with limited block on the main shaft, is provided with limited block
For being engaged the notch of interlocking with interlocking shaft；When breaker and isolation knife are all in "on" position, interlocking shaft is fastened on limit
In notch in the block of position, prevent from interlocking axle offset；It is spacing when breaker is in "on" position, and isolation knife is in gate-dividing state
The side of block is not closed a floodgate with the inconsistent guarantee disconnecting switch of interlocking shaft, could only be operated when breaker is in gate-dividing state
Disconnecting switch, prevent the maloperation of division disconnecting switch.
Preferably, described ZW20 disconnecting switch, it is characterised in that：The knife plate assembling includes two knife plates,
Two knife plates carry out assembling compression using bolt by spring base and stage clip.
Further, described ZW20 disconnecting switch, it is characterised in that：Top is for being filled with knife plate on the static contact
Static contact connecting plate with connection, screw bolt passes spring base, stage clip, spring base, knife plate, static contact connecting plate, knife plate, pad
Piece, then pass through the threaded connection on nut fitted bolt.
Further, described ZW20 disconnecting switch, it is characterised in that：Top is for being filled with knife plate on the moving contact
Moving contact connecting plate with folding connection, the installation end close to moving contact, screw bolt passes spring base, pressure are assembled in knife plate
Spring, spring base, knife plate, axle sleeve, knife plate, pad, then by the threaded connection on nut fitted bolt, limited by axle sleeve
Spacing between two knife plates, when "on" position, the connection of moving contact connecting plate is between two knife plates.
Further, described ZW20 disconnecting switch, it is characterised in that：Bolt in the knife plate assembling is step,
The screw diameter of non-threaded is bigger than the diameter of thread, and non-threaded end is provided with platform so that spanner fixation screws, bolt overall length and spiral shell
Line length is fixed.Two knife plates carry out assembling compression with spring base, bolt and stage clip etc. and ensure that needs in the knife plate assembling
Contact pressure value, the bolt on knife plate is special bolt, and the screw diameter of non-threaded is more bigger than the diameter of thread, non-threaded end
Fix and screw so as to spanner provided with platform, bolt overall length and reach are fixed, and when tightening nut, the compression of contact stage clip is solid
Measured length, its contact pressure is constant and meets design requirement.
Preferably, described ZW20 disconnecting switch, it is characterised in that：The base includes two and is used to install branch
Support the transverse slat of insulator；Supporting insulator is separately fixed on the transverse slat of base by bolt.
Preferably, described ZW20 disconnecting switch, it is characterised in that：Also include return spring, gone back on the main shaft
The return spring hinged seat for being connected with return spring is provided with, described return spring one end is connected on base, and the other end passes through multiple
Position spring hinged seat is connected with main shaft, for aiding in switching.Further, the arranged direction of the return spring is mutually hung down with main shaft
Directly.
Preferably, described ZW20 disconnecting switch, it is characterised in that：The curve of the notch is by three sections of circular arc structures
Into notch is with interlocking shaft contact point in the middle and lower part of interlocking shaft.When breaker is in closing position disconnecting switch operation on main shaft
Limited block notch can back-off live interlocking shaft to reach locking function.
Preferably, described ZW20 disconnecting switch, it is characterised in that：The operating side of the main shaft is provided with operation
Handle.
Beneficial effect：The ZW20 disconnecting switch of high reliability interlock provided by the invention, there is advantages below：
（1）The contact pressure of ZW20 on-pole switch disconnecting switch provided by the invention exempts to adjust, and is when bolt is screwed to bottom
Theoretical work contact pressure, it is easy to operate, improve operating efficiency；
（2）Described interlock system can be adjusted, and the length of interlock plate can be adjusted when certain error occurs in product, convenient fast
Speed.Interlocking the locking function possessed effectively prevents the maloperation of division disconnecting switch, ensures personal safety.
Brief description of the drawings
Fig. 1 is the structure chart that the present invention is under "on" position；
Fig. 2 is the stereogram that the present invention is under "on" position；
Fig. 3 is the stereogram that the present invention is under gate-dividing state；
Fig. 4 is breaker closing in the present invention, disconnecting switch "on" position interlock system structure chart；
Fig. 5 is breaker closing in the present invention, disconnecting switch gate-dividing state interlock system structure chart；
Fig. 6 be in the present invention limited block to the stress sketch of interlocking shaft；
Fig. 7 is the stereogram for exempting from regulating bolt in the present invention；
Fig. 8 is the sketch that regulating bolt is exempted from installation in the present invention；
In figure：Interlock assembly 1, main shaft 2, base 3, supporting insulator 4, moving contact 5, knife plate assembling 6, insulated tension pole 7, static contact
8th, spring base 9, bolt 10, stage clip 11, operation handle 12, limited block 13, interlocking shaft 14, return spring 15.
Embodiment
The present invention is further described with reference to specific embodiment.
As shown in Figure 1 to Figure 3, a kind of ZW20 disconnecting switch of high reliability interlock, including interlock assembly 1, main shaft
2nd, base 3, supporting insulator 4, moving contact 5, knife plate assembling 6, insulated tension pole 7, static contact 8；
The main shaft 2 is mounted in base 3 in advance before the welding of base 3 finishes, and the supporting insulator 4 is bolted on base
On 3, the moving contact 5, static contact 8 are arranged in supporting insulator 4, two knife plates spring base 9, spiral shell in the knife plate assembling 6
Bolt 10 and stage clip 11 etc. carry out assembling and compress the contact pressure value that ensure that needs.
The through hole for installing main shaft 2 and interlock assembly 1 is reserved with the base 3, main shaft 2 is installed through base 3
On, the pull bar hinged seat for being connected with insulated tension pole 7 is provided with the main shaft 2, the bottom of insulated tension pole 7 is cut with scissors by pull bar
Joint chair is connected with main shaft 2, and the top of insulated tension pole 7 is connected in knife plate assembling 6, and the bottom of supporting insulator 4 is fixed on base 3
On, static contact 8 is fixedly mounted between a supporting insulator 4 and knife plate assembling 6, and moving contact 5 is arranged on another supporting insulator 4
Top, and positioned at knife plate assembling 6 underface；
Interlocking shaft 14 is provided with the interlock assembly 1, correspondence position is provided with limited block 13, limited block 13 on the main shaft 2
On be provided with notch for being engaged interlocking with interlocking shaft 14；When breaker and isolation knife are all in "on" position, interlocking
Axle 14 is fastened in the notch in limited block 13, prevents interlocking shaft 14 from offseting；When breaker is in "on" position, isolation knife is in
During gate-dividing state, side and the inconsistent guarantee disconnecting switch of interlocking shaft 14 of limited block 13 are not closed a floodgate, only at breaker
When gate-dividing state could disconnecting switch operation, prevent the maloperation of division disconnecting switch；The operating side of main shaft is provided with operation
Handle 12.
As shown in figure 8, the knife plate assembling 6 includes two knife plates, two knife plates pass through spring base 9 and stage clip using bolt
11 carry out assembling compression.The static contact connecting plate for being connected with knife plate assembling 6, screw bolt passes are provided with static contact 8
Spring base 9, stage clip 11, spring base 9, knife plate, static contact connecting plate, knife plate, pad, then pass through the spiral shell on nut fitted bolt
Line connects；The moving contact connecting plate for being connected with knife plate assembling folding is provided with moving contact 5, is touched in knife plate assembling close to dynamic
First 5 installation end, screw bolt passes spring base 9, stage clip 11, spring base 9, knife plate, axle sleeve, knife plate, pad, then passes through spiral shell
Threaded connection on female fitted bolt, the spacing between two knife plates is limited by axle sleeve, when "on" position, moving contact
Connecting plate connection is between two knife plates.
As shown in fig. 7, the bolt 10 in the knife plate assembling is step, the screw diameter of non-threaded compares the diameter of thread
Greatly, non-threaded end is provided with platform so that spanner fixation screws, and bolt overall length and reach are fixed.Two in the knife plate assembling
Knife plate, which with spring base, bolt and stage clip etc. assemble, compresses the contact pressure value that ensure that needs, and the bolt 10 of knife plate is spy
The bolt of system, the screw diameter of non-threaded is more bigger than the diameter of thread, and non-threaded end is provided with platform so that spanner fixation screws,
Bolt overall length and reach are fixed, and when tightening nut, contact stage clip 11 compresses regular length, and its contact pressure is constant simultaneously
Meet design requirement.
The return spring hinged seat for being connected with return spring 15, described one end of return spring 15 are additionally provided with the main shaft 2
On the base 3, the other end is connected by return spring hinged seat with main shaft 2, for aiding in switching for connection.The return spring 15
Arranged direction is mutually perpendicular to main shaft 2.
As shown in figure 4, when breaker and disconnecting switch are in "on" position, on the interlocking shaft 14 in interlock assembly 1
The position such as figure is raised to, due to having one section of notch on the limited block 13 in main shaft 2, concrete shape is as shown in fig. 6, outside the notch
Shape curve is made up of three sections of circular arcs, and notch is with the contact point of interlocking shaft 14 in the middle and lower part of interlocking shaft.If during separating brake disconnecting switch, limit
Notch in the block 13 of position encases interlocking shaft 14, and its interlocking shaft stress ensures as shown in fig. 6, therefore interlocking shaft will not be offset downward
Breaker is not opened in closing position disconnecting switch.When disconnecting switch needs separating brake, it is necessary to first separating brake breaker, now
Interlocking shaft 14 in interlock assembly 1 slides into the bottom of chute, now moves operation handle 12 manually, and insulated tension pole 7 promotes knife
Plate assembling 6 rotates, so as to disjunction disconnecting switch.
As shown in figure 5, when breaker closing, disconnecting switch gate-dividing state, now rotating spindle combined floodgate disconnecting switch, by
The right flank of limited block 13 in main shaft 2 is directly contacted with interlocking shaft 14, therefore disconnecting switch is not closed a floodgate.Interlock the lock possessed
Tight function effectively prevents the maloperation of division disconnecting switch, ensures personal safety.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
- A kind of 1. ZW20 disconnecting switch, it is characterised in that：Including interlock assembly, main shaft, base, supporting insulator, moving contact, knife Plate assembling, insulated tension pole, static contact；The through hole for installing main shaft and interlock assembly is reserved with the base, main shaft is installed through on base, the master The pull bar hinged seat for being connected with insulated tension pole is provided with axle, the bottom of insulated tension pole is connected by pull bar hinged seat and main shaft Connect, the top of insulated tension pole is connected to knife plate fit on；The bottom of supporting insulator is fixed on base, and static contact is fixedly mounted between a supporting insulator and knife plate assembling, Moving contact is arranged on the top of another supporting insulator, and positioned at the underface of knife plate assembling；Interlocking shaft is provided with the interlock assembly, correspondence position is provided with limited block on the main shaft, is provided with limited block For being engaged the notch of interlocking with interlocking shaft；When breaker and isolation knife are all in "on" position, interlocking shaft is fastened on limit In notch in the block of position, prevent from interlocking axle offset；It is spacing when breaker is in "on" position, and isolation knife is in gate-dividing state The side of block is not closed a floodgate with the inconsistent guarantee disconnecting switch of interlocking shaft, could only be operated when breaker is in gate-dividing state Disconnecting switch, prevent the maloperation of division disconnecting switch.
- 2. ZW20 disconnecting switch according to claim 1, it is characterised in that：The knife plate, which assembles, includes two knife plates, and two Individual knife plate carries out assembling compression using bolt by spring base and stage clip.
- 3. ZW20 disconnecting switch according to claim 2, it is characterised in that：Top is is used for and knife plate on the static contact The static contact connecting plate of assembly connection, screw bolt passes spring base, stage clip, spring base, knife plate, static contact connecting plate, knife plate, Pad, then pass through the threaded connection on nut fitted bolt.
- 4. ZW20 disconnecting switch according to claim 2, it is characterised in that：Top is is used for and knife plate on the moving contact The moving contact connecting plate of folding connection is assembled, the installation end close to moving contact, screw bolt passes spring base, pressure are assembled in knife plate Spring, spring base, knife plate, axle sleeve, knife plate, pad, then by the threaded connection on nut fitted bolt, limited by axle sleeve Spacing between two knife plates, when "on" position, the connection of moving contact connecting plate is between two knife plates.
- 5. ZW20 disconnecting switch according to claim 2, it is characterised in that：Bolt in the knife plate assembling is step Formula, the screw diameter of non-threaded is bigger than the diameter of thread, and non-threaded end is provided with platform so that spanner fixation screws.
- 6. ZW20 disconnecting switch according to claim 1, it is characterised in that：The base includes two and is used to install support The transverse slat of insulator；Supporting insulator is separately fixed on the transverse slat of base by bolt.
- 7. ZW20 disconnecting switch according to claim 1, it is characterised in that：Also include return spring, also set on the main shaft The return spring hinged seat for being connected with return spring is equipped with, described return spring one end is connected on base, and the other end passes through reset Spring hinged seat is connected with main shaft, for aiding in switching.
- 8. ZW20 disconnecting switch according to claim 1, it is characterised in that：The curve of the notch is by three sections of circular arc structures Into notch is with interlocking shaft contact point in the middle and lower part of interlocking shaft.
- 9. ZW20 disconnecting switch according to claim 1, it is characterised in that：The operating side of the main shaft is provided with manipulator Handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710858770.3A CN107546062B (en) | 2017-09-21 | 2017-09-21 | A kind of ZW20 disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710858770.3A CN107546062B (en) | 2017-09-21 | 2017-09-21 | A kind of ZW20 disconnecting switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107546062A true CN107546062A (en) | 2018-01-05 |
| CN107546062B CN107546062B (en) | 2019-08-23 |
Family
ID=60963671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710858770.3A Active CN107546062B (en) | 2017-09-21 | 2017-09-21 | A kind of ZW20 disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107546062B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378247A (en) * | 2018-12-21 | 2019-02-22 | 国网河北省电力有限公司衡水供电分公司 | A kind of 10kV anti-misconnection, which is kept apart, to be shut |
| CN112420437A (en) * | 2020-11-23 | 2021-02-26 | 西安西电开关电气有限公司 | Double-locking device with auxiliary support and large-capacity switch equipment |
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| CN201918299U (en) * | 2010-08-13 | 2011-08-03 | 湛江高压电器有限公司 | Permanent magnetic mechanism with isolated distribution-network automation switch |
| CN203631403U (en) * | 2013-12-23 | 2014-06-04 | 德雷希尔(西安)电气有限公司 | Contact device of isolating switch |
| CN206158422U (en) * | 2016-10-31 | 2017-05-10 | 神龙汽车有限公司 | Four adjustable connecting rod machine cover hinge |
| CN207199523U (en) * | 2017-09-21 | 2018-04-06 | 江苏南瑞帕威尔电气有限公司 | A kind of ZW20 disconnecting switch |
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2017
- 2017-09-21 CN CN201710858770.3A patent/CN107546062B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201918299U (en) * | 2010-08-13 | 2011-08-03 | 湛江高压电器有限公司 | Permanent magnetic mechanism with isolated distribution-network automation switch |
| CN203631403U (en) * | 2013-12-23 | 2014-06-04 | 德雷希尔(西安)电气有限公司 | Contact device of isolating switch |
| CN206158422U (en) * | 2016-10-31 | 2017-05-10 | 神龙汽车有限公司 | Four adjustable connecting rod machine cover hinge |
| CN207199523U (en) * | 2017-09-21 | 2018-04-06 | 江苏南瑞帕威尔电气有限公司 | A kind of ZW20 disconnecting switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378247A (en) * | 2018-12-21 | 2019-02-22 | 国网河北省电力有限公司衡水供电分公司 | A kind of 10kV anti-misconnection, which is kept apart, to be shut |
| CN109378247B (en) * | 2018-12-21 | 2023-11-14 | 国网河北省电力有限公司衡水供电分公司 | 10kV anti-misoperation disconnecting switch lock |
| CN112420437A (en) * | 2020-11-23 | 2021-02-26 | 西安西电开关电气有限公司 | Double-locking device with auxiliary support and large-capacity switch equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107546062B (en) | 2019-08-23 |
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