CN202183319U - Mechanical interlocking device of isolating switch and grounding switch - Google Patents
Mechanical interlocking device of isolating switch and grounding switch Download PDFInfo
- Publication number
- CN202183319U CN202183319U CN2011202954783U CN201120295478U CN202183319U CN 202183319 U CN202183319 U CN 202183319U CN 2011202954783 U CN2011202954783 U CN 2011202954783U CN 201120295478 U CN201120295478 U CN 201120295478U CN 202183319 U CN202183319 U CN 202183319U
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- underframe
- blocking lever
- switch
- isolating switch
- cutter shaft
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- 238000002955 isolation Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 71
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a mechanical interlocking device of an isolating switch and a grounding switch, wherein a disconnecting link of a grounding switch (11) is rotationally connected on an underframe (1) through a grounding knife shaft (10), and a movable contact knife plate of an isolating switch (2) is connected with an isolating knife shaft (3) rotationally connected on the underframe (1) through a pull rod mechanism; one side of the underframe (1) is connected with a first mechanical interlocking device which enables the grounding switch to be incapable of being switched on when the disconnecting switch is in a switched-on state, and the other side of the underframe (1) is connected with a second mechanical interlocking device which enables the grounding switch to be incapable of being switched on when the disconnecting switch is in a switched-on state; one end of each of the first mechanical interlocking device and the second mechanical interlocking device is connected with the grounding cutter shaft (10), and the other end of each of the first mechanical interlocking device and the second mechanical interlocking device is connected with the isolation cutter shaft (3). Therefore, through a series of automatic mechanical mechanisms, the complexity of the operation procedure is greatly reduced, and meanwhile, the insecurity caused by manual misoperation is avoided.
Description
Technical field
The utility model relates to the technical field of urban track traffic, specifically is a kind of isolating switch of connecting and disconnecting of the circuit when control has voltage non-loaded in the orbit traffic direct current 1500V conductor rail circuit and mechanical interlocks of earthed switch of being applicable to.
Background technology
At present; Urban track traffic (such as subway) is normally used to be that the tractive power supply system of direct current 1500V cuts off with closure the non-loaded uniline of voltage is arranged, and two kinds of standards commonly used in this track traffic tractive power supply system are respectively flexible overhead contact line standard and conductor rail standard.The contact line standard is built on stilts layout, and the space can be more in disorder, and there is certain potential safety hazard in outdoor installation; And advanced be the conductor rail standard; It is on the ground with the track limit of the vehicle movement power track that adds protective cover that is arranged in parallel; And the control apparatus isolating switch of this conductor rail also must and be made the cabinet form in floor mounted, so that operation and guarantee safety.Regulation in the industry, isolating switch earthed switch when "on" position can't close a floodgate, and earthed switch isolating switch when "on" position can't close a floodgate.As the main element in the isolating switch cabinet, isolating switch and earthed switch and the interlocking between them are very important.In the prior art, the control of isolating switch and earthed switch is mainly contained two kinds: first kind, artificially to isolating switch with earthed switch locks and release; Second kind, interlocking through electrical equipment locks and release.
But, more than two kinds of interlocks shortcomings below existing:
1),,, also there is the insecurity of bringing by misoperation simultaneously so increased the loaded down with trivial details of operation sequence greatly because the locking and unlocking of each isolating switch and earthed switch all carries out through artificial control for first kind of situation;
2) for second kind of situation, because electric component is easy to break down, there is certain unsteadiness, so, in case some electric components break down, will cause the interlocking of isolating switch and earthed switch to break down, thereby security incident takes place.
The utility model content
The utility model technical problem to be solved is to provide a kind of simple to operate, stable and reliable for performance, thereby avoid taking place the isolating switch of security incident and the mechanical interlocks of earthed switch.
For solving the problems of the technologies described above; The isolating switch that the utility model provides and the mechanical interlocks of earthed switch; Comprise underframe, earthed switch and isolating switch; The disconnecting link of described earthed switch is rotatably connected on the underframe through the ground connection cutter shaft, and the movable contact knife plate of described isolating switch is connected with isolation cutter shaft on being rotatably connected on underframe through drag link mechanism; One side of described underframe is connected with and isolating switch first mechanical interlocks that earthed switch can't close a floodgate when "on" position, the opposite side of described underframe is connected with make earthed switch second mechanical interlocks that isolating switch can't close a floodgate when "on" position; Described first mechanical interlocks all is connected with the ground connection cutter shaft with second mechanical interlocks, one end, and the other end all is connected with the isolation cutter shaft.
Described first mechanical interlocks comprises earthed switch pallet, first blocking lever, first interlocking extension spring and the isolating switch cam; Described earthed switch pallet is connected the end of ground connection cutter shaft; Described first blocking lever rolling connects or is slidingly connected on the underframe; One end of the first interlocking extension spring is connected with underframe, and the other end is connected with first blocking lever, and described isolating switch cam is connected the end of isolation cutter shaft and pushes against with first blocking lever.
Described first blocking lever rolls to be connected with underframe and is meant to have first long lumbar hole on first blocking lever, is connected with two rollers on the underframe, and two rollers all roll and are engaged in first long lumbar hole.
Described first blocking lever and underframe are slidingly connected and are meant, have first long lumbar hole on first blocking lever, have first slide block on the underframe, and this first slide block is slidingly fitted in first long lumbar hole.
Described second mechanical interlocks comprises isolating switch pallet, second blocking lever, first interlocking extension spring and the earthed switch cam; Described isolating switch pallet is connected the end that isolates cutter shaft; Described second blocking lever rolling connects or is slidingly connected on the underframe; One end of the second interlocking extension spring is connected with underframe, and the other end is connected with second blocking lever, and described earthed switch cam is connected the end of ground connection cutter shaft and pushes against with second blocking lever.
Described second blocking lever rolls to be connected with underframe and is meant to have second long lumbar hole on second blocking lever, is connected with two rollers on the underframe, and two rollers all roll and are engaged in second long lumbar hole.
Described second blocking lever and underframe are slidingly connected and are meant, have second long lumbar hole on second blocking lever, have second slide block on the underframe, and this second slide block is slidingly fitted in second long lumbar hole.
After adopting above structure, the utility model compared with prior art has the following advantages:
1) because the disconnecting link interlocking device of isolating switch and earthed switch is made up of two groups of separate devices, forms by actuating cam on two cutter shafts and pallet and blocking lever that extension spring is housed; When isolating switch closes a floodgate when putting in place, isolate cutter shaft and drive cam and promote blocking lever, make pallet on the ground connection cutter shaft withstand blocking lever and can not rotate, reach the purpose that can not close a floodgate; When the isolating switch separating brake, blocking lever is given up the throne naturally under the effect of extension spring, and interlocking just automatically terminates, and earthed switch just can carry out closing operation; When earthed switch closes a floodgate when putting in place, the ground connection cutter shaft drives another group gear and promotes another group blocking lever, makes the pallet of isolating on the cutter shaft withstand blocking lever and can not rotate, and reaches the purpose that can not close a floodgate; When the earthed switch separating brake, blocking lever is given up the throne naturally under the effect of extension spring, and interlocking just automatically terminates, and isolating switch just can carry out closing operation; Therefore,, greatly reduce the loaded down with trivial details of operation sequence, also avoided simultaneously because the insecurity that the people brings for misoperation through a series of automation mechanism;
2) simultaneously, replace electric component and use mechanical interlocks, avoid occurring the security incident that causes by the unsteadiness that electric component brings.
Description of drawings
Fig. 1 is the main TV structure sketch map of the mechanical interlocks of the utility model isolating switch and earthed switch.
Fig. 2 is the left TV structure sketch map of the mechanical interlocks of the utility model isolating switch and earthed switch.
Fig. 3 is the backsight structural representation of the mechanical interlocks of the utility model isolating switch and earthed switch.
Wherein: 1, underframe; 2, isolating switch; 3, isolate cutter shaft; 4, isolating switch cam; 5, first blocking lever; 6, first long lumbar hole; 7, the first interlocking extension spring; 8, roller; 9, earthed switch pallet; 10, ground connection cutter shaft; 11, earthed switch; 12, isolating switch pallet; 13, second blocking lever; 14, the second interlocking extension spring; 15, second long lumbar hole; 16, earthed switch cam.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done explanation in further detail.
By the utility model isolating switch of Fig. 1～shown in Figure 3 and the mechanical interlocks of earthed switch; It comprises underframe 1, earthed switch 11 and isolating switch 2; The disconnecting link of described earthed switch 11 is rotatably connected on the underframe 1 through ground connection cutter shaft 10, and the movable contact knife plate of described isolating switch 2 is connected with isolation cutter shaft 3 on being rotatably connected on underframe 1 through drag link mechanism.One side of described underframe 1 is connected with and isolating switch first mechanical interlocks that earthed switch can't close a floodgate when "on" position, the opposite side of described underframe is connected with make earthed switch second mechanical interlocks that isolating switch can't close a floodgate when "on" position.Described first mechanical interlocks all is connected with ground connection cutter shaft 10 with second mechanical interlocks, one end, and the other end all is connected with isolation cutter shaft 3.
Described first mechanical interlocks comprises earthed switch pallet 9, first blocking lever 5, first interlocking extension spring 7 and the isolating switch cam 4; Described earthed switch pallet 9 is connected the end of ground connection cutter shaft 10; 5 rollings of described first blocking lever connect or are slidingly connected on the underframe 1; One end of the first interlocking extension spring 7 is connected with underframe 1, and the other end is connected with first blocking lever 5, and described isolating switch cam 4 is connected the end of isolation cutter shaft 3 and pushes against with first blocking lever 5.In the present embodiment, employing to be described first blocking lever 5 with underframe 1 roll is connected, promptly have first long lumbar hole 6 on first blocking lever 5, be connected with 8, two rollers 8 of two rollers on the underframe 1 and all roll and be engaged in first long lumbar hole 6.
Described second mechanical interlocks comprises isolating switch pallet 12, second blocking lever 13, first interlocking extension spring 14 and the earthed switch cam 16; Described isolating switch pallet 12 is connected the end that isolates cutter shaft 3; 13 rollings of described second blocking lever connect or are slidingly connected on the underframe 1; One end of the second interlocking extension spring 14 is connected with underframe 1, and the other end is connected with second blocking lever 13, and described earthed switch cam 16 is connected the end of ground connection cutter shaft 10 and pushes against with second blocking lever 13.In the present embodiment, employing to be described second blocking lever 13 with underframe 1 roll is connected, promptly have second long lumbar hole 15 on second blocking lever 13, be connected with 8, two rollers 8 of two rollers on the underframe 1 and all roll and be engaged in second long lumbar hole 15.
The utility model is not limited to described structure; Wherein: described first blocking lever 5 can also adopt with underframe 1 and be slidingly connected; Promptly have first long lumbar hole 6 on first blocking lever 5, have first slide block on the underframe 1, this first slide block is slidingly fitted in first long lumbar hole 6; In addition, described second blocking lever 13 also can adopt with underframe 1 and be slidingly connected, and promptly has second long lumbar hole 15 on second blocking lever 13, has second slide block on the underframe 1, and this second slide block is slidingly fitted in second long lumbar hole 15.
The operation principle of the mechanical interlocks of the utility model isolating switch and earthed switch is following:
1) isolating switch 2 is when the separating brake position, and first blocking lever 5 is under the traction of the first interlocking extension spring 7, and first blocking lever 5 is near on the position that isolates cutter shaft 3; In the process that isolating switch 2 closes a floodgate, isolate cutter shaft 3 rotations and drive isolating switch cam 4 promotions first blocking lever 5, first blocking lever 5 is moved to ground connection cutter shaft 10 directions; When isolating switch 2 combined floodgates put in place; First blocking lever 5 is just near the position of ground connection cutter shaft 10; Make ground connection cutter shaft 10 when rotation is closed a floodgate; Earthed switch pallet 9 on the ground connection cutter shaft 10 withstands first blocking lever 5 and ground connection cutter shaft 10 can not be rotated, thereby reaches the purpose that earthed switch 11 can not close a floodgate; When isolating switch 2 separating brakes; Isolate cutter shaft 3 rotation drive isolating switch cams 4 and give up the throne, under the effect of the first interlocking extension spring 7, first blocking lever 5 is just naturally near isolating cutter shaft 3 directions simultaneously; This moment, interlocking just automatically terminated, and earthed switch 11 can carry out closing operation;
2) earthed switch 11 is when the separating brake position, and second blocking lever 13 is under the traction of the second interlocking extension spring 14, on second position of blocking lever 13 near ground connection cutter shaft 10; In the process that earthed switch 11 closes a floodgate, 10 rotations of ground connection cutter shaft drive earthed switch cam 16 and promote second blocking lever 13, and second blocking lever 13 is moved to isolating cutter shaft 3 directions; When earthed switch 11 combined floodgates put in place; Second blocking lever 13 is just near the position that isolates cutter shaft 3; Make and isolate cutter shaft 3 when rotation is closed a floodgate; The isolating switch pallet 12 of isolating on the cutter shaft 3 withstands second blocking lever 13 and isolation cutter shaft 3 can not be rotated, thereby reaches the purpose that isolating switch 2 can not close a floodgate; When earthed switch 11 separating brakes; 10 rotations of ground connection cutter shaft drive earthed switch cam 16 and give up the throne, and under the effect of the second interlocking extension spring 14, second blocking lever 13 is just naturally near ground connection cutter shaft 10 directions simultaneously; This moment, interlocking just automatically terminated, and isolating switch 2 can carry out closing operation.
Claims (7)
1. the mechanical interlocks of isolating switch and earthed switch; Comprise underframe (1), earthed switch (11) and isolating switch (2); It is characterized in that: the disconnecting link of described earthed switch (11) is rotatably connected on the underframe (1) through ground connection cutter shaft (10), and the movable contact knife plate of described isolating switch (2) is connected with isolation cutter shaft (3) on being rotatably connected on underframe (1) through drag link mechanism; One side of described underframe (1) is connected with and isolating switch first mechanical interlocks that earthed switch can't close a floodgate when "on" position, the opposite side of described underframe (1) is connected with make earthed switch second mechanical interlocks that isolating switch can't close a floodgate when "on" position; Described first mechanical interlocks all is connected with ground connection cutter shaft (10) with second mechanical interlocks, one end, and the other end all is connected with isolation cutter shaft (3).
2. the mechanical interlocks of isolating switch according to claim 1 and earthed switch; It is characterized in that: described first mechanical interlocks comprises earthed switch pallet (9), first blocking lever (5), first interlocking extension spring (7) and the isolating switch cam (4); Described earthed switch pallet (9) is connected the end of ground connection cutter shaft (10); Described first blocking lever (5) rolling connects or is slidingly connected on the underframe (1); One end of the first interlocking extension spring (7) is connected with underframe (1); The other end is connected with first blocking lever (5), and described isolating switch cam (4) is connected the end of isolation cutter shaft (3) and pushes against with first blocking lever (5).
3. the mechanical interlocks of isolating switch according to claim 2 and earthed switch; It is characterized in that: described first blocking lever (5) rolls to be connected with underframe (1) and is meant; Has first long lumbar hole (6) on first blocking lever (5); Be connected with two rollers (8) on the underframe (1), two rollers (8) all roll and are engaged in first long lumbar hole (6).
4. the mechanical interlocks of isolating switch according to claim 2 and earthed switch; It is characterized in that: described first blocking lever (5) is slidingly connected with underframe (1) and is meant; Has first long lumbar hole (6) on first blocking lever (5); Underframe has first slide block on (1), and this first slide block is slidingly fitted in first long lumbar hole (6).
5. the mechanical interlocks of isolating switch according to claim 1 and earthed switch; It is characterized in that: described second mechanical interlocks comprises isolating switch pallet (12), second blocking lever (13), second interlocking extension spring (14) and the earthed switch cam (16); Described isolating switch pallet (12) is connected the end that isolates cutter shaft (3); Described second blocking lever (13) rolling connects or is slidingly connected on the underframe (1); One end of the second interlocking extension spring (14) is connected with underframe (1); The other end is connected with second blocking lever (13), and described earthed switch cam (16) is connected the end of ground connection cutter shaft (10) and pushes against with second blocking lever (13).
6. the mechanical interlocks of isolating switch according to claim 5 and earthed switch; It is characterized in that: described second blocking lever (13) rolls to be connected with underframe (1) and is meant; Has second long lumbar hole (15) on second blocking lever (13); Be connected with two rollers (8) on the underframe (1), two rollers (8) all roll and are engaged in second long lumbar hole (15).
7. the mechanical interlocks of isolating switch according to claim 5 and earthed switch; It is characterized in that: described second blocking lever (13) is slidingly connected with underframe (1) and is meant; Has second long lumbar hole (15) on second blocking lever (13); Underframe has second slide block on (1), and this second slide block is slidingly fitted in second long lumbar hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202954783U CN202183319U (en) | 2011-08-13 | 2011-08-13 | Mechanical interlocking device of isolating switch and grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202954783U CN202183319U (en) | 2011-08-13 | 2011-08-13 | Mechanical interlocking device of isolating switch and grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202183319U true CN202183319U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202954783U Expired - Fee Related CN202183319U (en) | 2011-08-13 | 2011-08-13 | Mechanical interlocking device of isolating switch and grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202183319U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943392A (en) * | 2014-04-02 | 2014-07-23 | 常熟市常源变压器有限公司 | Exquisite interlocking plate for two knife fuse switches |
| CN106169707A (en) * | 2015-03-19 | 2016-11-30 | 沈宇杰 | A kind of detection device for 110kV substation grounding disconnecting link |
| CN107210148A (en) * | 2015-01-28 | 2017-09-26 | Abb瑞士股份有限公司 | Mechanical Interlock Assemblies for Disconnectors and Earthing Switches |
| CN107731615A (en) * | 2017-11-13 | 2018-02-23 | 江苏大全高压开关有限公司 | A kind of new isolation for cable branch box, earthed switch |
-
2011
- 2011-08-13 CN CN2011202954783U patent/CN202183319U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943392A (en) * | 2014-04-02 | 2014-07-23 | 常熟市常源变压器有限公司 | Exquisite interlocking plate for two knife fuse switches |
| CN103943392B (en) * | 2014-04-02 | 2016-03-09 | 常熟市常源变压器有限公司 | The exquisite interlock plate of two switch with knifeshaped fuse |
| CN107210148A (en) * | 2015-01-28 | 2017-09-26 | Abb瑞士股份有限公司 | Mechanical Interlock Assemblies for Disconnectors and Earthing Switches |
| CN107210148B (en) * | 2015-01-28 | 2018-12-25 | Abb瑞士股份有限公司 | Mechanical Interlock Assemblies for Disconnectors and Earthing Switches |
| CN106169707A (en) * | 2015-03-19 | 2016-11-30 | 沈宇杰 | A kind of detection device for 110kV substation grounding disconnecting link |
| CN106169707B (en) * | 2015-03-19 | 2017-11-24 | 南京涵曦月自动化科技有限公司 | A kind of detection means for 110kV substation grounding disconnecting links |
| CN107731615A (en) * | 2017-11-13 | 2018-02-23 | 江苏大全高压开关有限公司 | A kind of new isolation for cable branch box, earthed switch |
| CN107731615B (en) * | 2017-11-13 | 2020-06-16 | 江苏大全高压开关有限公司 | A new type of isolation and grounding switch for cable branch box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |