CN210956533U - Three-station isolating switch for inflating cabinet - Google Patents
Three-station isolating switch for inflating cabinet Download PDFInfo
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- CN210956533U CN210956533U CN201921915834.XU CN201921915834U CN210956533U CN 210956533 U CN210956533 U CN 210956533U CN 201921915834 U CN201921915834 U CN 201921915834U CN 210956533 U CN210956533 U CN 210956533U
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- contact
- fixedly connected
- grounding
- disconnecting link
- link assembly
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Abstract
The utility model discloses an aerify three station isolator for cabinet, including keeping apart static contact, frame, be equipped with ground connection subassembly, contact subassembly in the frame, the contact subassembly includes the contact seat of fixed connection in the frame, fixedly connected with contact seat conductor on the contact seat, and the contact seat conductor rotationally is connected with the switch assembly, and frame one side is equipped with operating device, and operating device is used for driving the switch assembly optionally with ground connection subassembly, keep apart the static contact, and operating device passes through insulating axle and is connected with the switch assembly transmission. The moving blade in the knife switch component has good contact with the contact seat conductor and the isolation static contact, and the reliability is improved.
Description
Technical Field
The utility model relates to a high-voltage distribution equipment field especially relates to an aerify three station isolator for cabinet.
Background
Three-position disconnecting switches are formed by integrating disconnecting switches and grounding switches, and are often used in the technical field of high-voltage distribution equipment. The three working positions are a switching-on position, an isolating position and a grounding position respectively; the three-station isolating switch on the current market is relatively complex in structure, large in size, troublesome in operation, incapable of meeting the requirement of miniaturization and poor in reliability of switching action.
Disclosure of Invention
In order to solve the problem mentioned in the above-mentioned background art, the utility model provides an aerify three station isolator for cabinet, the moving blade is good with contact seat conductor, isolation static contact, has improved the reliability.
A three-station isolating switch for an inflatable cabinet comprises an isolating static contact and a rack, wherein a grounding assembly and a contact assembly are arranged on the rack, the contact assembly comprises a contact seat fixedly connected to the rack, a contact seat conductor is fixedly connected to the contact seat, a disconnecting link assembly is rotatably connected to the contact seat conductor, an operating mechanism is arranged on one side of the rack and used for driving the disconnecting link assembly to selectively contact with the grounding assembly and the isolating static contact, the operating mechanism is in transmission connection with the disconnecting link assembly through an insulating shaft, the disconnecting link assembly comprises moving blades arranged on two sides of the contact seat conductor, the two moving blades are connected with the contact seat conductor through first screws, one ends of the first screws, close to nuts, and the middle sections of the first screws are not provided with threads, one ends of the first screws, far away from the nuts, are connected with first nuts through threads, the contact seat conductor is characterized in that a first spring is fixedly connected between the first nut and the movable blade and between the nut of the first screw and the movable blade, and a first spring is fixedly connected between the movable blade and the first nut.
Furthermore, the grounding assembly comprises a grounding copper bar fixedly connected to the rack and a grounding contact for contacting with the disconnecting link assembly, and the grounding contact is fixedly connected to the grounding copper bar.
Furthermore, the insulating shaft comprises a transmission shaft in transmission connection with the operating mechanism, the transmission shaft extends into the rack and is fixedly connected with an insulating frame, a through hole is formed in the insulating frame and corresponds to the position of the disconnecting link assembly, an insulating sleeve sleeved outside the disconnecting link assembly is fixedly connected to the through hole, and the insulating sleeve drives the disconnecting link assembly to selectively contact with the grounding contact and the isolation static contact under the transmission of the operating mechanism.
Further, the first spring and the second spring are both disc springs.
The utility model has the advantages that:
1. the utility model discloses be equipped with first spring, second spring, can ensure that knife switch subassembly knife section and contact seat conductor, keep apart the static contact good.
2. The utility model discloses carry out driven mode replacement through connecting lever, connecting rod with traditional and adopt insulating axle direct drive's mode, improved three station isolator mechanical properties's stability, reliability.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a block diagram of the knife switch assembly.
Fig. 5 is a schematic view of the present invention installed in an inflatable cabinet.
The device comprises a fixed contact, a disconnecting link assembly, a knife blade, a moving blade, a limiting sleeve, an operating mechanism, a transmission shaft, an insulating frame, an insulating sleeve and a knife switch assembly, wherein 1 is an isolated fixed contact, 2 is a frame, 301 is a grounding copper bar, 302 is a grounding contact, 4 is a contact seat, 5 is a contact, 6 is a knife switch assembly, 601 is the moving blade, 602 is a first screw, 603 is a first nut, 604 is a first spring, 605 is a second screw, 606 is a second nut, 607 is a second spring, 608 is the limiting sleeve, 7 is the operating mechanism, 8 is the transmission shaft.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings by way of specific embodiments.
As shown in the figure, aerify three station isolator for cabinet, including keeping apart static contact 1, frame 2, keep apart static contact 1 and aerify the circuit breaker in the cabinet and link to each other, be equipped with ground connection subassembly, contact assembly in the frame 2, contact assembly includes fixed connection contact seat 4 in frame 2, fixedly connected with contact seat conductor 5 on the contact seat 4, contact seat conductor 5 links to each other with the generating line conductor in the cabinet of aerifing, contact seat conductor 5 rotationally is connected with knife brake assembly 6, frame 2 one side is equipped with operating device 7, operating device 7 is prior art, no longer detailedly repeated here. The operating mechanism 7 is used for driving the disconnecting link assembly 6 to be selectively contacted with the grounding assembly and the isolation static contact 1, the operating mechanism 7 is in transmission connection with the disconnecting link assembly 6 through an insulating shaft, the disconnecting link assembly 6 comprises moving blades 601 arranged at two sides of a contact base conductor 5, the two moving blades 601 are connected with the contact base conductor 5 through first screws 602, threads are not arranged at one end of each first screw 602 close to a nut thereof and the middle section of each first screw 602, one end of each first screw 602 far away from the nut thereof is connected with a first nut 603 through the threads, a first spring 604 is fixedly connected between each first nut 603 and the moving blade 601 and between the nut of each first screw 602 and the moving blade 601, one ends of the two moving blades 601 far away from the contact base conductor 5 are connected through second screws 605, one ends of the second screws 605 close to the nuts and the middle sections thereof are not provided with the threads, and one ends of the second screws 605 far away from the nuts are connected, a second spring 607 is fixedly connected between the second nut 606 and the movable blade 601, and between the nut of the second screw 605 and the movable blade 601, and the second screw 605 is further sleeved with a limit sleeve 608 arranged between the two movable blades 601. The first spring 604 and the second spring 607 are in a compressed state, the first spring 604 can provide pressure to enable the movable blade 601 to be better contacted with the contact base conductor 5 in the rotating process, and the second spring 607 can provide pressure to ensure the movable blade 601 to be better contacted with the isolation static contact 1 and the grounding contact 302.
The grounding assembly comprises a grounding copper bar 301 fixedly connected to the frame 2 and a grounding contact 302 used for contacting with the disconnecting link assembly 6, and the grounding contact 302 is fixedly connected to the grounding copper bar 301.
The insulating shaft comprises a transmission shaft 8 in transmission connection with the operating mechanism 7, the transmission shaft 8 extends into the rack 2 and is fixedly connected with an insulating frame 9, a through hole is formed in the position, corresponding to the position of the disconnecting link assembly 6, of the insulating frame 9, an insulating sleeve 10 is fixedly connected to the through hole and sleeved outside the disconnecting link assembly 6, and the insulating sleeve 10 drives the disconnecting link assembly 6 to be optionally contacted with the grounding contact 302 and the isolation static contact 1 under the transmission of the operating mechanism 7. The design can replace the traditional mode of driving through the crank arm and the connecting rod into the mode of directly driving by adopting the insulating shaft, and the stability and the reliability of the mechanical characteristics of the three-station isolating switch are improved.
The first spring 604 and the second spring 607 are both disc springs.
The utility model discloses when concrete implementation: the operating mechanism 7 drives the transmission shaft 8 to rotate, the transmission shaft 8 drives the insulating sleeve 10 on the insulating frame 9 to rotate, so that the disconnecting link assembly 6 is driven to rotate, when the movable blade 601 of the disconnecting link assembly 6 is in contact with the grounding contact 302, the three-position disconnecting switch is in a grounding position, when the movable blade 601 of the disconnecting link assembly 6 is in contact with the isolation static contact 1, the three-position disconnecting switch is in a switching-on position, and when the disconnecting link assembly is in a certain position between the isolation static contact 1 and the grounding contact 302, the three-position disconnecting switch is in an isolation position.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A three-station isolating switch for an inflatable cabinet comprises an isolating static contact and a rack, wherein a grounding assembly and a contact assembly are arranged on the rack, the contact assembly comprises a contact seat fixedly connected to the rack, a contact seat conductor is fixedly connected to the contact seat, a disconnecting link assembly is rotatably connected to the contact seat conductor, an operating mechanism is arranged on one side of the rack and used for driving the disconnecting link assembly to selectively contact with the grounding assembly and the isolating static contact, the three-station isolating switch is characterized in that the operating mechanism is in transmission connection with the disconnecting link assembly through an insulating shaft, the disconnecting link assembly comprises moving blades arranged on two sides of the contact seat conductor, the two moving blades are connected with the contact seat conductor through first screws, one ends of the first screws, close to nuts, and the middle sections of the first screws are not provided with threads, one ends of the first screws, far away from the nuts, are connected with first nuts through threads, the contact seat conductor is characterized in that a first spring is fixedly connected between the first nut and the movable blade and between the nut of the first screw and the movable blade, and a first spring is fixedly connected between the movable blade and the first nut.
2. The three-position disconnecting switch for the inflatable cabinet as claimed in claim 1, wherein the grounding assembly comprises a grounding copper bar fixedly connected to the frame and a grounding contact for contacting with the disconnecting link assembly, and the grounding contact is fixedly connected to the grounding copper bar.
3. The three-station disconnecting switch for the inflatable cabinet as claimed in claim 2, wherein the insulating shaft comprises a transmission shaft in transmission connection with the operating mechanism, the transmission shaft extends into the frame and is fixedly connected with an insulating frame, a through hole is formed in the insulating frame corresponding to the position of the disconnecting link assembly, an insulating sleeve sleeved outside the disconnecting link assembly is fixedly connected to the through hole, and the insulating sleeve drives the disconnecting link assembly to selectively contact with the grounding contact and the isolation static contact under the transmission of the operating mechanism.
4. The three-position disconnecting switch for the inflatable cabinet as claimed in claim 1, wherein the first spring and the second spring are both disc springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915834.XU CN210956533U (en) | 2019-11-08 | 2019-11-08 | Three-station isolating switch for inflating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921915834.XU CN210956533U (en) | 2019-11-08 | 2019-11-08 | Three-station isolating switch for inflating cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210956533U true CN210956533U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921915834.XU Active CN210956533U (en) | 2019-11-08 | 2019-11-08 | Three-station isolating switch for inflating cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN210956533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360957A (en) * | 2021-12-27 | 2022-04-15 | 北京中车赛德铁道电气科技有限公司 | High-voltage isolating switch |
-
2019
- 2019-11-08 CN CN201921915834.XU patent/CN210956533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360957A (en) * | 2021-12-27 | 2022-04-15 | 北京中车赛德铁道电气科技有限公司 | High-voltage isolating switch |
| CN114360957B (en) * | 2021-12-27 | 2024-03-29 | 北京中车赛德铁道电气科技有限公司 | High-voltage isolating switch |
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