CN217426623U - High-safety three-knife combined isolating switch - Google Patents
High-safety three-knife combined isolating switch Download PDFInfo
- Publication number
- CN217426623U CN217426623U CN202220941603.1U CN202220941603U CN217426623U CN 217426623 U CN217426623 U CN 217426623U CN 202220941603 U CN202220941603 U CN 202220941603U CN 217426623 U CN217426623 U CN 217426623U
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- contact
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- sword
- safety
- driving shaft
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- 230000007246 mechanism Effects 0.000 claims description 17
- 239000012212 insulator Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
-
- 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
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a three sword combined type isolator of high security includes the switch frame, the switch frame on from last first contact, second contact, third contact and the fourth contact of down being equipped with in proper order to all be equipped with between first contact and the second contact, between second contact and the third contact, between third contact and the fourth contact and touch the sword, the middle part of switch frame still is equipped with the driving shaft that the level was placed, and the one end of driving shaft is driven by electric actuator, and the other end of driving shaft is equipped with link gear. This isolator comes the first sword that touches of simultaneous control, second to touch the sword and the third touches the sword through link gear, because each touches the state of opening and shutting of sword incompletely the same, so the condition that three touch the sword and close a floodgate simultaneously can not appear in the use, has avoided the electric power accident that causes because operating personnel maloperation, has improved the safety in utilization of equipment.
Description
Technical Field
The utility model relates to an isolator, concretely relates to three sword combined type isolator of high security.
Background
With the gradual implementation of the policy of energy conservation and emission reduction of electric power in China, the demand of the whole electric power industry on high-voltage frequency conversion cabinets is continuously increased, each high-voltage frequency conversion cabinet needs to be provided with a plurality of isolating switches, however, the isolating switches which are common on the market are mutually and independently opened and closed at present, so that the five-prevention processing operation among different isolating switches is too complicated, and the electric power accident is easily caused by misoperation in the processing process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a high-safety three-blade combined isolating switch.
A high-safety three-knife combined isolating switch comprises a switch frame, wherein a first contact, a second contact, a third contact and a fourth contact are sequentially arranged on the switch frame from top to bottom, touch knives with incompletely identical opening and closing states are arranged between the first contact and the second contact, between the second contact and the third contact and between the third contact and the fourth contact, the first touch knife is movably hinged to the lower end of the first contact, the second touch knife and the third touch knife are respectively and movably hinged to the upper end and the lower end of the third contact, a horizontally-arranged driving shaft is further arranged in the middle of the switch frame, the driving shaft drives a linkage mechanism through an electric device, the linkage mechanism comprises an upper linkage rod and a lower linkage rod which are connected with the driving shaft, the upper linkage rod is provided with an upper driven shaft, the lower linkage rod is provided with a lower driven shaft, and a part between the upper driven shaft and the first touch knife is connected with the lower driven shaft, The driving shaft and the second contact knife and the lower driven shaft and the third contact knife are connected through a rotating mechanism.
Preferably, the first contact, the second contact, the third contact and the fourth contact are fixed on the switch frame through a plurality of contact insulators.
Preferably, the first contact, the second contact and the fourth contact are moving contacts, and the third contact is a fixed contact.
Preferably, the electric device is a rotating motor.
Preferably, the driving shaft drives the linkage mechanism through manpower.
Preferably, slewing mechanism is including touching sword insulator and connecting piece, touch the one end of sword insulator and link to each other with first touching the sword, touch the other end of sword insulator and link to each other with the connecting piece, the connecting piece fix on last driven shaft.
Has the advantages that: the utility model discloses a three-knife combined type isolating switch of high security, this isolating switch come the simultaneous control through link gear first touch sword, second touch sword and third touch sword, because the state of opening and shutting that respectively touches the sword is not identical, so can not appear the three condition of closing a floodgate simultaneously that touches the sword in the use, avoided the electric power accident that causes because operating personnel maloperation, improved the safety in utilization of equipment.
Drawings
FIG. 1 is a front view of a three-blade combination disconnector;
FIG. 2 is a side view of a three-blade combination disconnect switch;
in the figure: 1. the switch comprises a switch frame 11, a first contact 12, a second contact 13, a third contact 14, a fourth contact 15, a contact insulator 2, a contact knife 21, a first contact knife 22, a second contact knife 23, a third contact knife 3, a driving shaft 4, a linkage mechanism 41, an upper linkage rod 42, a lower linkage rod 43, an upper driven shaft 44, a lower driven shaft 5, a rotating mechanism 51, a contact knife insulator 52 and a connecting piece.
Detailed Description
In order to deepen the understanding of the present invention, the present invention is described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1 and 2, a high-safety three-blade combined disconnecting switch comprises a switch frame 1 and a contact blade 2, wherein the switch frame 1 is sequentially provided with a first contact 11, a second contact 12, a third contact 13 and a fourth contact 14 from top to bottom, the contact blades 2 with incompletely identical opening and closing states are arranged between the first contact 11 and the second contact 12, between the second contact 12 and the third contact 13, and between the third contact 13 and the fourth contact 14, the first contact blade 21 is movably hinged at the lower end of the first contact 11, the second contact blade 22 and the third contact blade 23 are respectively and movably hinged at the upper end and the lower end of the third contact 13, a driving shaft 3 which is horizontally arranged is further arranged in the middle of the switch frame 1, the driving shaft 3 drives a linkage mechanism 4 through an electric device, the linkage mechanism 4 comprises an upper linkage rod 41 and a lower linkage rod 42 which are connected with the driving shaft 3, the upper linkage rod 41 is provided with an upper driven shaft 43, the lower linkage rod 42 is provided with a lower driven shaft 44, and the upper driven shaft 43 is connected with the first touch blade 21, the driving shaft 3 is connected with the second touch blade 22, and the lower driven shaft 44 is connected with the third touch blade 23 through the rotating mechanism 5.
In this embodiment, the first contact 11, the second contact 12, the third contact 13 and the fourth contact 14 are fixed on the switch frame 1 through a plurality of contact insulators 15.
In this embodiment, the first contact 11, the second contact 12, and the fourth contact 14 are moving contacts, and the third contact 13 is a fixed contact.
In this embodiment, the electric device is a rotating motor.
In this embodiment, the driving shaft 3 drives the linkage mechanism 4 by manpower.
In this embodiment, the rotating mechanism 5 includes a contact blade insulator 51 and a connecting member 52, one end of the contact blade insulator 51 is connected to the first contact blade 21, the other end of the contact blade insulator 51 is connected to the connecting member 52, and the connecting member 52 is fixed to the upper driven shaft 43.
The working condition is as follows: as shown in fig. 2, in the three-blade combined type disconnecting switch, the first contact blade 21 and the third contact blade 23 are in a disconnected state, the second contact blade 22 is in a closed state, at this time, the rotating motor or an operator drives the driving shaft 3 to rotate clockwise, the driving shaft 3 drives the upper driven shaft 43 and the lower driven shaft 44 to rotate together through the upper linkage rod 41 and the lower linkage rod 42, taking the upper driven shaft 43 as an example, in the rotating process of the upper driven shaft 43, because the connecting member 52 is fixed on the upper driven shaft 43, the connecting member 52 drives the contact blade insulator 51 to rotate, at this time, the first contact blade 21 is driven by the contact blade insulator 51 to rotate clockwise along the hinge joint with the first contact 11 until the first contact blade 21 is closed, and when the first contact blade 21 is in the closed state, the second contact blade 22 is in the disconnected state, and the third contact blade 23 is in the closed state.
This isolator comes the first sword that touches of simultaneous control, second to touch the sword and the third touches the sword through link gear, because each touches the state of opening and shutting of sword incompletely the same, so the condition that three touch the sword and close a floodgate simultaneously can not appear in the use, has avoided the electric power accident that causes because operating personnel maloperation, has improved the safety in utilization of equipment.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A high-safety three-blade combined isolating switch is characterized by comprising a switch frame, wherein a first contact, a second contact, a third contact and a fourth contact are sequentially arranged on the switch frame from top to bottom, contact blades with incompletely identical opening and closing states are arranged between the first contact and the second contact, between the second contact and the third contact and between the third contact and the fourth contact, the contact blades are respectively a first contact blade movably hinged at the lower end of the first contact, a second contact blade movably hinged at the upper end of the third contact and a third contact blade movably hinged at the lower end of the third contact, a horizontally-arranged driving shaft is further arranged in the middle of the switch frame, the driving shaft drives a linkage mechanism through an electric device, the linkage mechanism comprises an upper linkage rod and a lower linkage rod which are connected with the driving shaft, an upper driven shaft is arranged on the upper linkage rod, a lower driven shaft is arranged on the lower linkage rod, the upper driven shaft is connected with the first contact knife, the driving shaft is connected with the second contact knife, and the lower driven shaft is connected with the third contact knife through rotating mechanisms.
2. The high-safety three-blade combined isolating switch according to claim 1, wherein the first contact, the second contact, the third contact and the fourth contact are fixed on the switch frame through a plurality of contact insulators.
3. The high-safety three-blade combined isolating switch as claimed in claim 1, wherein the first contact, the second contact and the fourth contact are moving contacts, and the third contact is a fixed contact.
4. A high safety three-blade combined type disconnecting switch according to claim 1, wherein said electric device is a rotating motor.
5. The high-safety three-blade combined isolating switch as claimed in claim 1, wherein the driving shaft drives the linkage mechanism by manpower.
6. The high-safety three-blade combined isolating switch as claimed in claim 1, wherein the rotating mechanism includes a contact blade insulator and a connecting member, one end of the contact blade insulator is connected to the first contact blade, the other end of the contact blade insulator is connected to the connecting member, and the connecting member is fixed to the upper driven shaft.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220941603.1U CN217426623U (en) | 2022-04-22 | 2022-04-22 | High-safety three-knife combined isolating switch |
| PCT/CN2022/144416 WO2023202162A1 (en) | 2022-04-22 | 2022-12-31 | Three-pole combined isolating switch with high safety |
| DE212022000068.4U DE212022000068U1 (en) | 2022-04-22 | 2022-12-31 | Combined three-knife disconnector with high security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220941603.1U CN217426623U (en) | 2022-04-22 | 2022-04-22 | High-safety three-knife combined isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217426623U true CN217426623U (en) | 2022-09-13 |
Family
ID=83183101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220941603.1U Active CN217426623U (en) | 2022-04-22 | 2022-04-22 | High-safety three-knife combined isolating switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217426623U (en) |
| WO (1) | WO2023202162A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202162A1 (en) * | 2022-04-22 | 2023-10-26 | 镇江市丹高电器有限公司 | Three-pole combined isolating switch with high safety |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2694444B1 (en) * | 1992-07-30 | 1994-11-04 | Soule Sa | Improvements to electrical line cut-off devices. |
| CN2325867Y (en) * | 1997-12-30 | 1999-06-23 | 天津前进电器设备有限公司 | Outdoor high voltage loading insulation switch |
| CN206611073U (en) * | 2017-03-17 | 2017-11-03 | 河南英开电气股份有限公司 | A kind of double-bus band double-pole switch high-tension switch cabinet |
| CN217426623U (en) * | 2022-04-22 | 2022-09-13 | 镇江市丹高电器有限公司 | High-safety three-knife combined isolating switch |
-
2022
- 2022-04-22 CN CN202220941603.1U patent/CN217426623U/en active Active
- 2022-12-31 WO PCT/CN2022/144416 patent/WO2023202162A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202162A1 (en) * | 2022-04-22 | 2023-10-26 | 镇江市丹高电器有限公司 | Three-pole combined isolating switch with high safety |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023202162A1 (en) | 2023-10-26 |
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