CN109300717B - Simple easy-to-high-reliability double-inlet-wire interlocking type isolating switch with locking position - Google Patents
Simple easy-to-high-reliability double-inlet-wire interlocking type isolating switch with locking position Download PDFInfo
- Publication number
- CN109300717B CN109300717B CN201811464807.5A CN201811464807A CN109300717B CN 109300717 B CN109300717 B CN 109300717B CN 201811464807 A CN201811464807 A CN 201811464807A CN 109300717 B CN109300717 B CN 109300717B
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- rotating shaft
- switch rotating
- shaft assembly
- shaft
- locking
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- 239000012212 insulator Substances 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 abstract description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a simple easy-to-operate high-reliability double-incoming-line interlocking type isolating switch with a locking position, which comprises a switch frame, a post insulator, a first fixed contact, a second fixed contact, a third fixed contact, a first moving contact, a second moving contact, a first switch rotating shaft assembly, a second switch rotating shaft assembly, a first operating shaft, a second operating shaft, a split-and-close position locking mechanism, a two-in-one interlocking mechanism and a mechanism chamber partition plate, wherein the first switch rotating shaft assembly is connected with the post insulator; the first moving contact and the second moving contact are respectively connected with the first switch rotating shaft assembly and the second switch rotating shaft assembly, and the opening and the closing of the first switch rotating shaft assembly and the second switch rotating shaft assembly are controlled through the first switch rotating shaft assembly and the second switch rotating shaft assembly; the first switch rotating shaft assembly and the second switch rotating shaft assembly are respectively and fixedly connected with the first operating shaft and the second operating shaft, and the mechanism chamber partition plate is provided with a separation and combination position locking mechanism at the upper parts of the first operating shaft and the second operating shaft; the first operation shaft and the second operation shaft are connected through a two-in-one interlocking mechanism. The invention realizes the double-inlet-wire split-combined position locking function and the interlocking function.
Description
Technical Field
The invention relates to an isolating switch, in particular to a simple easy-to-high-reliability double-inlet-wire interlocking isolating switch with a locking position.
Background
With the continuous development of industrial economy in China, the demand for the power switch cabinets is also larger and larger, and the role played by the power switch cabinets is also more and more important. The equipment maintainer needs to know the running state of the switch cabinet timely and accurately and make timely and effective maintenance on the power equipment. At present, GN19-12ST double-inlet-wire isolating switches all have double-inlet-wire interlocking function, but do not have separating and combining position locking function, so that the moving contact is prevented from bouncing. Most switch board factories all use operating device to realize the locking of branch close position, can the cost of cubical switchboard increase like this, lead to market competition not high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a simple and easy-to-high-reliability double-incoming-line interlocking type isolating switch with a locking position, and the double-incoming-line separating and combining position locking function and the interlocking function are realized.
In order to solve the technical problems, the invention adopts the following technical scheme: the simple easy-to-high-reliability double-incoming-line interlocking type isolating switch with the locking position comprises a switch frame, a post insulator, a first fixed contact, a second fixed contact, a third fixed contact, a first moving contact, a second moving contact, a first switch rotating shaft assembly, a second switch rotating shaft assembly, a first operating shaft, a second operating shaft, a split-position locking mechanism, a two-in-one interlocking mechanism and a mechanism chamber partition plate; three rows of post insulators are arranged on the switch frame, and a second fixed contact is arranged on the post insulator in the middle; the post insulators on the two sides are respectively provided with a fixed contact I and a fixed contact III; one ends of the first moving contact and the second moving contact are rotationally connected with the second fixed contact, the first moving contact and the second moving contact are respectively connected with the first switch rotating shaft assembly and the second switch rotating shaft assembly, and the opening and the closing of the first switch rotating shaft assembly and the second switch rotating shaft assembly are controlled through the first switch rotating shaft assembly and the second switch rotating shaft assembly; the first switch rotating shaft assembly and the second switch rotating shaft assembly are respectively and fixedly connected with a first operation shaft and a second operation shaft, the first operation shaft and the second operation shaft extend out of the mechanism chamber partition plate, and the mechanism chamber partition plate is provided with a separating and combining locking mechanism at the upper parts of the first operation shaft and the second operation shaft; positioning holes matched with the split-combined locking mechanism are formed in the first operation shaft and the second operation shaft; the first operation shaft and the second operation shaft are connected through a two-in-one interlocking mechanism;
the separating and combining position locking mechanism comprises a base, a locking pin shaft, a reset spring, an unlocking button and a locking spring; the lock pin shaft penetrates through the base and is connected with the base in a sliding manner; the lock pin shaft is connected with the base through a reset spring; the lock pin shaft is provided with a waist-shaped hole, the unlocking button stretches into the base from one side of the base and penetrates through the waist-shaped hole on the lock pin shaft to be connected with the locking spring, one end of the locking spring is fixed on the base, and the other end of the locking spring is fixed on the unlocking button; the unlocking button is provided with a positioning column, and the locking pin shaft is provided with a positioning hole;
the two-in-one interlocking mechanism comprises a crank arm I, a crank arm II, a travel guide rod, an adjusting nut, a universal adjusting rod, a pin shaft and a cotter pin; the first crank arm and the second crank arm are respectively fixed on the first operation shaft and the second operation shaft; one end of the travel guide rod is arranged in the waist-shaped hole and is in sliding connection with the crank arm I through the pin shaft and the cotter pin; one end of the universal adjusting rod is rotationally connected with the crank arm II through a pin shaft and a cotter pin; the adjusting nut is arranged at the other end of the travel guide rod, and the other end of the universal adjusting rod is in threaded connection with the nut adjusting nut and then extends into the travel guide rod.
Further, the first switch rotating shaft component and the second switch rotating shaft component have the same structure and comprise a shaft body and a connecting rod; one end of the connecting rod is fixed on the shaft body, the other end of the connecting rod is rotationally connected with the pull rod insulator, and the top of the pull rod insulator is rotationally connected with the moving contact I or the moving contact II.
Further, the base is provided with a hole for the locking pin shaft and the unlocking button to penetrate, and the end part of the hole is provided with a copper sleeve I and a copper sleeve II respectively; the copper sleeve I and the copper sleeve II are respectively arranged at the ends of the round hole and the guide hole.
Further, the base is mounted on the mechanism chamber partition plate through screws.
Further, the travel guide rod comprises a connecting plate with a waist-shaped hole and a hollow rod body fixedly connected with the connecting plate.
Further, the universal adjusting rod comprises a screw rod and a connector with a pin hole, wherein the connector is connected with the screw rod. Further, the first crank arm and the second crank arm are a pair of lug plates with pin holes.
The invention has the beneficial effects that: the invention solves the problem of false opening and closing by the two-in-one interlocking mechanism, and solves the problem of bouncing of the moving contact of the isolating switch by the opening and closing locking mechanism, thereby having low cost and simple operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a schematic diagram of the unlocking state of the split-position locking mechanism.
Fig. 4 is a schematic diagram of the locking state of the split-position locking mechanism.
Fig. 5 is a schematic diagram of the internal structure of the split locking mechanism.
FIG. 6 is a schematic diagram of a two-in-one interlocking mechanism with two separate blades in one split state.
Fig. 7 is a schematic diagram of a two-in-one interlocking mechanism in a double-isolation knife and double-knife separated state.
Detailed Description
The technical scheme of the present invention will be clearly and completely described in the following detailed description.
As shown in fig. 1, the simple easy-to-use high-reliability double-incoming-line interlocking type isolating switch with a locking position comprises a switch frame 1, a post insulator 2, a pull rod insulator 3, a first fixed contact 4, a second fixed contact 5, a third fixed contact 6, a first moving contact 7, a second moving contact 8, a first switch rotating shaft assembly 9, a second switch rotating shaft assembly 10, a first operating shaft 11, a second operating shaft 12, a split and combined position locking mechanism 13, a two-in-one interlocking mechanism 14 and a mechanism chamber partition 15.
The invention is characterized in that the switch frame 1 consists of three bases and a bracket; the ends of the middle base and the side base are fixed on the bracket. The three bases are fixedly provided with post insulators 2, and the second fixed contact 5 is arranged at the top of the post insulator 2 positioned in the middle base; the first fixed contact 4 and the third fixed contact 6 are respectively arranged on the top of the post insulator 2 positioned on the side base. One end of the first moving contact 7 and one end of the second moving contact 8 are both in rotary connection with the second fixed contact 5; the other ends of the first moving contact 7 and the second moving contact 8 are respectively contacted with the first fixed contact 4 and the third fixed contact 6 after the first moving contact 7 and the second moving contact 8 rotate.
The first moving contact 7 and the second moving contact 8 are respectively controlled to open and close by a first switch rotating shaft assembly 9 and a second switch rotating shaft assembly 10. The first switch rotating shaft assembly 9 and the second switch rotating shaft assembly 10 have the same structure and comprise a shaft body 91 and a connecting rod 92; the shaft 91 passes through the bracket of the switch frame 1 and is rotatably connected with the bracket. The shaft body 91 is fixedly provided with a connecting rod 92; the bottom of the pull rod insulator 3 is rotationally connected with the connecting rod 92, and the top of the pull rod insulator is rotationally connected with the first moving contact 7 or the second moving contact 8; the shaft body 91 rotates, and the connecting rod 91 jacks up the pull rod insulator 3 to drive the first moving contact 7 and the second moving contact 8 to lift up or pull the pull rod insulator 3 downwards to drive the first moving contact 7 and the second moving contact 8 to contact with the first fixed contact 4 and the third fixed contact 6.
The invention is characterized in that a shaft body 91 of a first switch rotating shaft assembly 9 and a second switch rotating shaft assembly 10 is fixedly connected with a first operating shaft 11 and a second operating shaft 12, the end parts of the first operating shaft 11 and the second operating shaft 12 penetrate out of a mechanism chamber partition plate 15, and a separation and combination position locking mechanism 13 is arranged above the first operating shaft 11 and the second operating shaft 12 in the mechanism chamber partition plate 15 and used for locking and limiting the first operating shaft 11 and the second operating shaft 12.
The split and close locking mechanism 13 of the present invention includes a base 131, a lock pin shaft 132, a return spring 133, an unlocking button 134, a first copper bush 135, a second copper bush 136, and a locking spring 137. The base 131 is fixedly mounted on the mechanism compartment partition 15 by screws. A guide hole for inserting the lock pin shaft 132 is formed in the base 131, a return spring 133 is arranged between the head of the lock pin shaft 132 and the base 131, the return spring 133 is sleeved on a pin rod of the lock pin shaft 132, one end of the return spring 133 is fixed on the base 131, and the other end of the return spring 133 is fixed on the head of the lock pin shaft 132. The pin rod of the lock pin shaft 132 is provided with a waist-shaped hole on a part positioned in the guide hole of the base, the side wall of the base 131 is provided with a round hole communicated with the guide hole, the round hole is provided with a first copper bush 135 used for guiding, the unlocking button 134 extends into the base through the first copper bush 135, the top of the unlocking button 134 extends out of the first copper bush 135, and the bottom of the unlocking button passes through the waist-shaped hole on the lock pin shaft 132 and is connected with the locking spring 137. The guide hole is a through hole, and the bottom of the guide hole is provided with a copper sleeve II 136. The bottom of the lock pin 132 extends out of the second copper sleeve 136. The unlocking button 134 can be provided with a positioning column at a position between the locking pin 132 and the locking spring 137, the locking pin 13 is provided with a positioning hole, the positioning hole is positioned at the upper part of the waist-shaped hole, the locking mechanism 13 is in a locking state when the positioning column and the positioning Kong Pi at the upper part of the waist-shaped hole are positioned, the unlocking button is pressed down, the positioning column is separated from the positioning hole at the upper part of the waist-shaped hole, and the locking pin 132 is reset upwards under the action of the reset spring.
The first operation shaft 11 and the second operation shaft 12 are connected through the two-in-one interlocking mechanism 14, and when the moving contact on one side is reliably contacted with the fixed contact, the moving contact on the other side and the fixed contact are ensured to reach normal open-close distance. The two-in-one interlocking mechanism 14 of the present invention includes a first lever 141, a second lever 142, a travel guide rod 143, an adjusting nut 144, a universal adjusting rod 145, a pin 146, and a cotter pin 147. The first and second operating shafts 11 and 12 are provided with positioning holes.
The travel guide rod 143 of the present invention includes a connecting plate with a waist-shaped hole and a hollow rod body; one end of the hollow rod body is provided with a connecting plate, the other end of the hollow rod body is provided with an adjusting nut 144, and the adjusting nut 144 is fixedly connected with the hollow rod body; the universal adjusting rod 145 comprises a screw rod and a connector with a connecting hole, one end of the screw rod is in threaded connection with the adjusting nut 144 and then extends into the hollow rod body, and the other end of the screw rod is in rotary connection with the connector.
The lever one 141 and the lever two 142 are fixed to the first operation shaft 11 and the second operation shaft 12, respectively. The first lever 141 and the second lever 142 have the same structure and comprise a pair of ear plates with pin holes, a connecting plate at one end of the travel guide rod 143 is connected with the first lever 141 through a pin shaft 146 and a cotter pin 147, and the pin shaft 146 can move in the waist-shaped hole. The connector of the universal adjusting rod 145 is connected with the crank arm II 142 through a pin shaft 146 and a cotter pin 147, and the universal adjusting rod 145 can rotate around the pin shaft.
The adjusting nut 144 of the invention can also be rotationally connected with the hollow rod body, the screw rod of the universal adjusting rod 145 is fixedly connected with the connector, and the universal adjusting rod 145 of the rotating adjusting nut 144 extends out of the travel guide rod or retracts into the travel guide rod, so that the whole length of the two-in-one interlocking mechanism 14 is adjusted.
The application method of the invention comprises the following steps: the first switch rotating shaft assembly 9 is rotated through the first operating shaft 11, the first switch moving contact 7 is closed, and the first moving contact 7 is reliably contacted with the first fixed contact 4; the lock pin shaft of the opening and closing position locking mechanism 13 above the first operation shaft 11 is pressed into the first operation shaft 11, and the moving contact II 8 and the fixed contact III 6 can reach normal open and close distance through the two-in-one interlocking mechanism (because the length of the two-in-one interlocking mechanism is limited, when the two-in-one interlocking mechanism is closed, the crank arm I141 is always positioned at the outermost end of the waist-shaped hole, the crank arm II 142 cannot rotate clockwise and can only rotate anticlockwise), and the integral length of the two-in-one interlocking mechanism can be adjusted according to actual needs. When the moving contact is opened, the second operation shaft 12 can operate the moving contact to perform closing.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and the present invention is not limited to the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention should fall within the protection scope of the present invention, and the claimed technical content of the present invention is fully described in the claims.
Claims (7)
1. From simple easy high reliable two inlet wire interlocking formula isolator in taking locking position, its characterized in that: the device comprises a switch frame (1), a post insulator (2), a first fixed contact (4), a second fixed contact (5), a third fixed contact (6), a first moving contact (7), a second moving contact (8), a first switch rotating shaft assembly (9), a second switch rotating shaft assembly (10), a first operating shaft (11), a second operating shaft (12), a split-combination locking mechanism (13), a two-in-one interlocking mechanism (14) and a mechanism chamber partition plate (15); three rows of post insulators (2) are arranged on the switch frame (1), and a fixed contact II (5) is arranged on the post insulator (2) in the middle; the post insulators (2) on the two sides are respectively provided with a fixed contact I (4) and a fixed contact III (6); one end of a first moving contact (7) and one end of a second moving contact (8) are rotationally connected with a second fixed contact (5), the first moving contact (7) and the second moving contact (8) are respectively connected with a first switch rotating shaft assembly (9) and a second switch rotating shaft assembly (10), and the opening and the closing of the first switch rotating shaft assembly and the second switch rotating shaft assembly are controlled through the first switch rotating shaft assembly (9) and the second switch rotating shaft assembly (10); the first switch rotating shaft assembly (9) and the second switch rotating shaft assembly (10) are respectively and fixedly connected with the first operating shaft (11) and the second operating shaft (12), the first operating shaft (11) and the second operating shaft (12) extend out of the mechanism chamber partition plate (15), and the mechanism chamber partition plate (15) is provided with a separating and combining position locking mechanism (13) at the upper parts of the first operating shaft (11) and the second operating shaft (12); positioning holes matched with the separating and combining locking mechanism (13) are formed in the first operation shaft (11) and the second operation shaft (12); the first operation shaft (11) and the second operation shaft (12) are connected through a two-in-one interlocking mechanism (14);
the separating and combining position locking mechanism (13) comprises a base (131), a lock pin shaft (132), a reset spring (133), an unlocking button (134) and a locking spring (137); the lock pin shaft (132) penetrates through the base (131) and is connected with the base in a sliding manner; the lock pin shaft (132) is connected with the base (131) through a return spring (133); the lock pin shaft (132) is provided with a waist-shaped hole, the unlocking button (134) extends into the base (131) from one side of the base (131), the unlocking button passes through the waist-shaped hole on the lock pin shaft (132) to be connected with the locking spring (137), one end of the locking spring (137) is fixed on the base, and the other end of the locking spring is fixed on the unlocking button (134); the unlocking button (134) is provided with a positioning column, and the locking pin shaft (132) is provided with a positioning hole;
the two-in-one interlocking mechanism (14) comprises a crank arm I (141), a crank arm II (142), a travel guide rod (143), an adjusting nut (144), a universal adjusting rod (145), a pin shaft (146) and a cotter pin (147); the first crank arm (141) and the second crank arm (142) are respectively fixed on the first operation shaft (11) and the second operation shaft (12); one end of the travel guide rod (143) is arranged in the waist-shaped hole and is in sliding connection with the crank arm I (141) through the pin shaft (146) and the cotter pin (147); one end of the universal adjusting rod (145) is rotationally connected with the crank arm II (142) through a pin shaft (146) and a cotter pin (147); the adjusting nut (144) is arranged at the other end of the travel guide rod (143), and the other end of the universal adjusting rod (145) is in threaded connection with the nut adjusting nut (144) and then extends into the travel guide rod (143).
2. The simple easy high reliability double incoming line interlock type disconnector with locking position according to claim 1, characterized in that: the first switch rotating shaft assembly (9) and the second switch rotating shaft assembly (10) have the same structure and comprise a shaft body (91) and a connecting rod (92); one end of a connecting rod (92) is fixed on the shaft body (91), the other end of the connecting rod is rotationally connected with the pull rod insulator (3), and the top of the pull rod insulator (3) is rotationally connected with the moving contact I (7) or the moving contact II (8).
3. The simple easy high reliability double incoming line interlock type disconnector with locking position according to claim 1, characterized in that: the base (131) is provided with a hole for the locking pin shaft (132) and the unlocking button (134) to penetrate through, and the end part of the hole is respectively provided with a copper sleeve I (135) and a copper sleeve II (136); the first copper sleeve (135) and the second copper sleeve (136) are respectively arranged at the ends of the round hole and the guide hole.
4. The simple easy high reliability double wire interlock type disconnector with locking position according to claim 3, characterized in that: the base (131) is mounted on the mechanism chamber partition plate (15) through screws.
5. The simple easy high reliability double incoming line interlock type disconnector with locking position according to claim 1, characterized in that: the travel guide rod (143) comprises a connecting plate with a waist-shaped hole and a hollow rod body fixedly connected with the connecting plate.
6. The simple easy high reliability double incoming line interlock type disconnector with locking position according to claim 1, characterized in that: the universal adjusting rod (145) comprises a screw rod and a connector with a pin hole, wherein the connector is connected with the screw rod.
7. The simple easy high reliability double incoming line interlock type disconnector with locking position according to claim 1, characterized in that: the first crank arm (141) and the second crank arm (142) are a pair of lug plates with pin holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464807.5A CN109300717B (en) | 2018-12-03 | 2018-12-03 | Simple easy-to-high-reliability double-inlet-wire interlocking type isolating switch with locking position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464807.5A CN109300717B (en) | 2018-12-03 | 2018-12-03 | Simple easy-to-high-reliability double-inlet-wire interlocking type isolating switch with locking position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109300717A CN109300717A (en) | 2019-02-01 |
| CN109300717B true CN109300717B (en) | 2024-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811464807.5A Active CN109300717B (en) | 2018-12-03 | 2018-12-03 | Simple easy-to-high-reliability double-inlet-wire interlocking type isolating switch with locking position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109300717B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112201502B (en) * | 2020-09-30 | 2023-05-30 | 国网安徽省电力有限公司芜湖市湾沚区供电公司 | Double-cutter unit multipath electric switch device |
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|---|---|---|---|---|
| JP2011243514A (en) * | 2010-05-21 | 2011-12-01 | Japan Ae Power Systems Corp | Interlock mechanism of disconnector with ground switch |
| CN103985591A (en) * | 2014-05-29 | 2014-08-13 | 厦门兴厦控电气有限公司 | Three-station isolating switch |
| CN105551873A (en) * | 2016-02-29 | 2016-05-04 | 上海天灵开关厂有限公司 | Switch cabinet, three-position isolation switch mechanism and interlocking device thereof |
| WO2016065673A1 (en) * | 2014-10-29 | 2016-05-06 | 浙江道笃智能开关有限公司 | Pole type high-voltage electrical appliance combined switch |
| CN108320946A (en) * | 2018-01-09 | 2018-07-24 | 河南森源电气股份有限公司 | A kind of switchgear and its disconnecting switch and breaker interlock |
| CN208938846U (en) * | 2018-12-03 | 2019-06-04 | 中天电气技术有限公司 | Simple and easy highly reliable double inlet wire interlock type disconnecting switch of included lock position |
-
2018
- 2018-12-03 CN CN201811464807.5A patent/CN109300717B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011243514A (en) * | 2010-05-21 | 2011-12-01 | Japan Ae Power Systems Corp | Interlock mechanism of disconnector with ground switch |
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| WO2016065673A1 (en) * | 2014-10-29 | 2016-05-06 | 浙江道笃智能开关有限公司 | Pole type high-voltage electrical appliance combined switch |
| CN105551873A (en) * | 2016-02-29 | 2016-05-04 | 上海天灵开关厂有限公司 | Switch cabinet, three-position isolation switch mechanism and interlocking device thereof |
| CN108320946A (en) * | 2018-01-09 | 2018-07-24 | 河南森源电气股份有限公司 | A kind of switchgear and its disconnecting switch and breaker interlock |
| CN208938846U (en) * | 2018-12-03 | 2019-06-04 | 中天电气技术有限公司 | Simple and easy highly reliable double inlet wire interlock type disconnecting switch of included lock position |
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| Title |
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| 电器成套开关设备门用电磁锁;陶林;沈健;;江苏电器(04);全文 * |
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| CN109300717A (en) | 2019-02-01 |
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