CN111009441A - Isolation-grounding three-position switch operating mechanism of gas-filled switch cabinet - Google Patents
Isolation-grounding three-position switch operating mechanism of gas-filled switch cabinet Download PDFInfo
- Publication number
- CN111009441A CN111009441A CN201911233893.3A CN201911233893A CN111009441A CN 111009441 A CN111009441 A CN 111009441A CN 201911233893 A CN201911233893 A CN 201911233893A CN 111009441 A CN111009441 A CN 111009441A
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- China
- Prior art keywords
- grounding
- crank arm
- connecting lever
- isolating
- isolation
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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
- 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
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an isolation-grounding three-station switch operating mechanism of an inflatable switch cabinet, which is characterized by comprising an isolation mechanism connecting lever, a switching-on and switching-off connecting lever, an output connecting lever and a grounding mechanism connecting lever; the isolating mechanism crank arm and the grounding mechanism crank arm are respectively and movably connected with one end of a switching-on/off crank arm; the other ends of the two brake opening and closing connecting levers are movably connected through an output connecting lever; the mechanism also comprises a grounding stop pin, a spring and an isolation stop pin; the grounding stop pin is used for limiting a connecting lever of the grounding mechanism; the isolation stop pin is used for limiting the connecting lever of the isolation mechanism; and two ends of the spring are respectively fixed on the crank arm of the isolation mechanism and the crank arm of the grounding mechanism. The invention has the characteristics of simple and reasonable structure, convenient and quick operation, and safety and reliability of the whole body.
Description
Technical Field
The invention relates to the technical field of distribution equipment, in particular to a three-position switch operating mechanism of an inflatable switch cabinet.
Background
With the development of gas insulated metal-enclosed switchgear in recent years, three-station isolation-grounding combination switches are adopted by various manufacturers more and more due to the fact that the three-station isolation-grounding combination switches are small in size, compact in structure, high in compound degree and flexible and diverse in configuration mode, and the isolation switches and the grounding switches can be interlocked. However, after the three-position isolating-grounding switch is adopted, because the switch needs to move in two directions, the traditional spring mechanism cannot realize the function, and a novel mechanism capable of realizing flexible movement in two directions is needed.
Due to the lack of design and operation experience, the three-position isolation-grounding combined switch encounters a plurality of problems in design and development, and typically comprises the following steps: the five-prevention interlocking is unreliable; the manual operation torque exceeds the standard (more than standard 120 Nm); the motion over position caused by the motion inertia of the direct current motor, and the like. The three-position mechanism must be stable and reliable, especially in terms of locking between movement in the isolating direction and movement in the grounding direction. If the mechanism separates from the isolated end back to the neutral position without stopping its motion and continues its motion toward the grounded end, it is very likely to cause a line fault.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an isolation-grounding three-position switch operating mechanism of an inflatable switch cabinet, so as to solve the problem that the prior art is not flexible enough.
In order to achieve the purpose, the invention is realized by the following technical method:
an isolation-grounding three-station switch operating mechanism of an inflatable switch cabinet comprises an isolation mechanism connecting lever, an opening and closing connecting lever, an output connecting lever and a grounding mechanism connecting lever;
the isolating mechanism crank arm and the grounding mechanism crank arm are respectively and movably connected with one end of a switching-on/off crank arm;
the other ends of the two brake opening and closing connecting levers are movably connected through an output connecting lever;
the mechanism also comprises a grounding stop pin, a spring and an isolation stop pin;
the grounding stop pin is used for limiting a connecting lever of the grounding mechanism;
the isolation stop pin is used for limiting the connecting lever of the isolation mechanism;
and two ends of the spring are respectively fixed on the crank arm of the isolation mechanism and the crank arm of the grounding mechanism.
Furthermore, sliding grooves are formed in the isolating mechanism connecting lever and the grounding mechanism connecting lever; the isolating mechanism crank arm and the grounding mechanism crank arm are respectively and movably connected with the switching-on/off crank arm through a sliding groove.
Furthermore, a crank arm is arranged on the crank arm of the isolation mechanism; and the grounding mechanism crank arm is provided with a grounding crank arm.
Furthermore, the crank arm and the crank arm of the isolation mechanism are installed through splines; the grounding mechanism crank arm and the grounding crank arm are installed through a hexagonal shaft.
Furthermore, two ends of the spring are respectively connected with the grounding crank arm and the crank arm through pin shafts.
Furthermore, the grounding stop pin and the isolating stop pin are both cylinders.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the isolating mechanism crank arm or the grounding mechanism crank arm is driven by storing energy through the manual spring, so that the isolating-grounding three-position switch and the three-position switch operating mechanism are quickly and flexibly axially separated; by arranging the isolation stop pin and the grounding stop pin, the mechanism can be effectively limited, and misoperation is reduced, so that the reliability of a power distribution system is improved.
Drawings
FIG. 1 is a schematic diagram of a switch opening state of a three-position switch operating mechanism;
FIG. 2 is a schematic diagram of a switch closing state of the three-position switch operating mechanism;
FIG. 3 is a schematic diagram of a grounding and closing state of a three-position switch operating mechanism;
FIG. 4 is a schematic view of the isolating mechanism crank arm in elevation;
FIG. 5 is a schematic view of the front view of the opening/closing crank arm;
FIG. 6 is a schematic view of the front view structure of the combination output crank arm;
FIG. 7 is a schematic front view of the grounding crank arm;
FIG. 8 is a front view of the crank arm;
fig. 9 is a schematic structural view of a spring connection state.
Reference numerals: 1-isolating mechanism crank arm; 2-opening and closing the brake crank arm; 3-output crank arm; 4-a grounding mechanism crank arm; 5-a grounding stop pin; 6-position of the grounding crank arm; 7-a spring; 8-crank arm; 9-isolating the stop pin.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9, the isolation-grounding three-position switch operating mechanism of the inflatable switch cabinet comprises mechanism parts, wherein the mechanism parts comprise an isolation mechanism connecting lever 1, two switching-on and switching-off connecting levers 2, an output connecting lever 3, a grounding mechanism connecting lever 4, a grounding baffle pin 5, a grounding connecting lever 6, a spring 7, a connecting lever 8 and an isolation baffle pin 9 which are arranged on a mechanism. The spring 7 drives the connecting lever of the isolating mechanism or the connecting lever of the grounding mechanism through manual energy storage, so that the operation from switch opening to switch closing or from switch opening to grounding closing is realized.
The isolating mechanism crank arm 1 and the grounding mechanism crank arm 4 are respectively and movably connected with one end of a switching-on/off brake crank arm 2; the other ends of the two brake opening and closing connecting levers 2 are movably connected through an output connecting lever 3; the grounding stop pin 5 is used for limiting the grounding mechanism crank arm 4; the isolation stop pin 9 is used for limiting the isolation mechanism crank arm 1 to realize the limiting of the operating mechanism; a crank arm 8 is arranged on the crank arm 1 of the isolation mechanism; the grounding mechanism crank arm 4 is provided with a grounding crank arm 6. Two ends of the spring 7 are respectively connected with the grounding crank arm 6 and the crank arm 8 through pin shafts. The isolating mechanism crank arm 1 and the crank arm 8 are arranged through splines; the grounding mechanism crank arm 4 and the grounding crank arm 6 are installed through a hexagonal shaft. Sliding grooves are formed in the isolating mechanism connecting lever 1 and the grounding mechanism connecting lever 4; the isolating mechanism crank arm 1 and the grounding mechanism crank arm 4 are respectively and movably connected with the switching-on/off crank arm 2 through a sliding chute.
The spring 7 stores energy manually, and the isolating mechanism crank arm 1 and the grounding mechanism crank arm 4 are driven by the single spring 7. The isolating mechanism crank arm 1 and the grounding mechanism crank arm 4 drive the output crank arm 3 to realize three-station operation. The isolating mechanism connecting lever 1, the switching-on and switching-off connecting lever 2, the output connecting lever 3, the grounding mechanism connecting lever 4, the grounding stop pin 5, the grounding connecting lever 6, the spring 7, the connecting lever 8 and the isolating stop pin 9 are all made of steel
The isolating mechanism connecting lever 1 is provided with a first sliding groove, so that the switching-on and switching-off connecting lever 2 does not move in the process that the spring 7 stores energy through a pendulum when the isolating mechanism connecting lever 1 is manually operated to switch on and store energy; the isolating mechanism connecting lever 1 is provided with a notch on one side to when realizing the switch separating state and the switch closing state, the homoenergetic is spacing with isolation stop pin 9, and the isolating mechanism connecting lever 1 sets up the notch on the opposite side to realize manual spring energy storage.
The switching-on and switching-off crank arm 2 is designed in a U-shaped structure.
The output crank arm 3 is provided with a first key groove connected with a shaft, and the output crank arm 3 rotates 60 degrees in three working states.
The grounding mechanism crank arm 4 is provided with a second sliding groove, so that the brake closing and opening crank arm 2 does not move in the process that the spring 7 stores energy through pendulum when the grounding mechanism crank arm 4 is manually operated to store energy during grounding; earthing mechanism connecting lever 4 sets up the notch in one side to when realizing switch separating brake state and ground connection combined floodgate state, the homoenergetic is spacing with ground connection backing pin 5, and earthing mechanism connecting lever 4 sets up the notch at the opposite side, in order to realize manual spring energy storage.
The isolating stop pin 9 and the grounding stop pin 5 are cylinders with the diameter of 14 mm.
The switch of the spring 7 is switched on to store energy manually, the connecting lever 1 of the isolating mechanism rotates clockwise to the isolating stop pin 9, and the spring 7 stores energy through a pendulum. The spring 7 releases energy, the connecting lever 1 of the isolating mechanism is continuously driven to rotate clockwise to the isolating stop pin 9, the switching-on and switching-off connecting lever 2 is driven, the switching-on and switching-off connecting lever 2 drives the output connecting lever 3, the output connecting lever 3 rotates clockwise by 60 degrees, the operation from the switching-off state to the switching-on state of the three-station operating mechanism is realized, and the switching-on state is shown in figure 2.
The spring 7 is grounded and switched on for manual energy storage, the connecting lever 4 of the grounding mechanism rotates anticlockwise to the grounding stop pin 5, and the spring 7 stores energy through a pendulum. The spring 7 releases energy, the grounding mechanism connecting lever 4 is continuously driven to rotate anticlockwise to the grounding stop pin 5, the switching-on and switching-off connecting lever 2 is driven, the switching-on and switching-off connecting lever 2 drives the output connecting lever 3, the output connecting lever 3 rotates anticlockwise by 60 degrees, the operation from the switching-on and switching-off state to the grounding-on state of the three-station operating mechanism is realized, and the grounding-on state is shown in figure 3.
From the above, the working principle of the invention is as follows: when the switch is switched from an opening state to a closing state, the switch is firstly switched on to store energy, the isolating mechanism connecting lever 1 is manually operated to enable the spring 7 to store energy through a pendulum, and the spring 7 drives the isolating mechanism connecting lever 1 so as to drive the output connecting lever 3 to realize the switch closing; when the switch is in a switching-off state to a grounding switching-on state, the grounding energy is stored firstly, the grounding mechanism connecting lever 4 is manually operated, the spring 7 stores energy through pendulum, and the spring 7 drives the grounding mechanism connecting lever 4, so that the output connecting lever 3 is driven, and the grounding switching-on is realized.
According to the three-station switch operating mechanism provided by the invention, the three working states of switch closing, switch opening and grounding closing are operated through manual energy storage of a single spring, and the output connecting levers of the three working state mechanisms rotate 60 degrees. Firstly, a crank arm of an isolating mechanism is manually operated, the crank arm of the isolating mechanism rotates clockwise to push a spring to pass through a pendulum for energy storage, the spring releases energy to drive the crank arm of the isolating mechanism to continue rotating clockwise, the output crank arm rotates clockwise by 60 degrees, and the switch is switched off to be switched on; and secondly, manually operating the connecting lever of the energy storage grounding mechanism, enabling the connecting lever of the grounding mechanism to rotate anticlockwise to push the spring to store energy through the pendulum, enabling the spring to release energy to drive the connecting lever of the grounding mechanism to rotate anticlockwise continuously, enabling the output connecting lever to rotate anticlockwise by 60 degrees, and realizing the state from opening of the switch to grounding and closing of the switch. The invention has the characteristics of simple and reasonable structure, convenient and quick operation, and safety and reliability of the whole body.
The foregoing detailed description has described the present application, and the present application uses specific examples to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the method and core ideas of the present application, and all changes can be made in the specific embodiments and application scope, so in summary, the present application should not be construed as limiting the present application.
Claims (6)
1. An isolation-grounding three-station switch operating mechanism of an inflatable switch cabinet is characterized by comprising an isolation mechanism connecting lever (1), an opening and closing connecting lever (2), an output connecting lever (3) and a grounding mechanism connecting lever (4);
the isolating mechanism crank arm (1) and the grounding mechanism crank arm (4) are respectively and movably connected with one end of a switching-on/switching-off crank arm (2);
the other ends of the two brake opening and closing connecting levers (2) are movably connected through an output connecting lever (3);
the mechanism also comprises a grounding stop pin (5), a spring (7) and an isolation stop pin (9);
the grounding stop pin (5) is used for limiting a connecting lever (4) of the grounding mechanism;
the isolation stop pin (9) is used for limiting the isolation mechanism crank arm (1);
and two ends of the spring (7) are respectively fixed on the isolating mechanism crank arm (1) and the grounding mechanism crank arm (4).
2. The isolating-grounding three-position switch operating mechanism of the gas-filled switch cabinet as claimed in claim 1, wherein sliding grooves are formed in the isolating mechanism crank arm (1) and the grounding mechanism crank arm (4); the isolating mechanism crank arm (1) and the grounding mechanism crank arm (4) are respectively movably connected with the switching-on/off crank arm (2) through a sliding chute.
3. The isolating-grounding three-position switch operating mechanism of the gas-filled switch cabinet as claimed in claim 1, wherein a crank arm (8) is mounted on the isolating mechanism crank arm (1); and the grounding mechanism crank arm (4) is provided with a grounding crank arm (6).
4. The isolating-grounding three-position switch operating mechanism of the gas-filled switch cabinet as claimed in claim 3, wherein the isolating mechanism crank arm (1) and the crank arm (8) are mounted through a spline; the grounding mechanism crank arm (4) and the grounding crank arm (6) are installed through a hexagonal shaft.
5. The isolating-grounding three-position switch operating mechanism of the gas-filled switch cabinet as claimed in claim 3, wherein two ends of the spring (7) are respectively connected with the grounding crank arm (6) and the crank arm (8) through pin shafts.
6. The isolating-grounding three-position switch operating mechanism of the gas-filled switch cabinet is characterized in that the grounding stop pin (5) and the isolating stop pin (9) are both cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233893.3A CN111009441A (en) | 2019-12-05 | 2019-12-05 | Isolation-grounding three-position switch operating mechanism of gas-filled switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233893.3A CN111009441A (en) | 2019-12-05 | 2019-12-05 | Isolation-grounding three-position switch operating mechanism of gas-filled switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN111009441A true CN111009441A (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911233893.3A Pending CN111009441A (en) | 2019-12-05 | 2019-12-05 | Isolation-grounding three-position switch operating mechanism of gas-filled switch cabinet |
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| CN (1) | CN111009441A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2322901A1 (en) * | 1999-10-07 | 2001-04-07 | Lg Industrial Systems Co., Ltd. | Gas insulating switchgear |
| CN103871773A (en) * | 2014-03-25 | 2014-06-18 | 厦门凯能电力科技有限公司 | Three-station operating mechanism |
| CN105006399A (en) * | 2015-07-10 | 2015-10-28 | 镇江华源晋昌电器有限公司 | Limiting device for high-voltage isolating switch three-station operation mechanism |
| CN204991517U (en) * | 2015-08-06 | 2016-01-20 | 宁波格力特电气科技有限公司 | Three station spring -operated mechanisms |
| CN205542550U (en) * | 2016-04-14 | 2016-08-31 | 厦门成迅电力设备有限公司 | Three station isolation operation angle adjustable mechanism |
| CN205845739U (en) * | 2016-07-18 | 2016-12-28 | 中骏电气（厦门）有限公司 | A kind of three station operating mechanisms of band pooling feature |
| CN205863076U (en) * | 2016-08-17 | 2017-01-04 | 深圳市蓝希望电子有限公司 | A kind of three station spring interrupters |
-
2019
- 2019-12-05 CN CN201911233893.3A patent/CN111009441A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2322901A1 (en) * | 1999-10-07 | 2001-04-07 | Lg Industrial Systems Co., Ltd. | Gas insulating switchgear |
| CN103871773A (en) * | 2014-03-25 | 2014-06-18 | 厦门凯能电力科技有限公司 | Three-station operating mechanism |
| CN105006399A (en) * | 2015-07-10 | 2015-10-28 | 镇江华源晋昌电器有限公司 | Limiting device for high-voltage isolating switch three-station operation mechanism |
| CN204991517U (en) * | 2015-08-06 | 2016-01-20 | 宁波格力特电气科技有限公司 | Three station spring -operated mechanisms |
| CN205542550U (en) * | 2016-04-14 | 2016-08-31 | 厦门成迅电力设备有限公司 | Three station isolation operation angle adjustable mechanism |
| CN205845739U (en) * | 2016-07-18 | 2016-12-28 | 中骏电气（厦门）有限公司 | A kind of three station operating mechanisms of band pooling feature |
| CN205863076U (en) * | 2016-08-17 | 2017-01-04 | 深圳市蓝希望电子有限公司 | A kind of three station spring interrupters |
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Application publication date: 20200414 |