CN2809844Y - Apparatus for locking bypass load switch upon air press loss with indication function - Google Patents
Apparatus for locking bypass load switch upon air press loss with indication function Download PDFInfo
- Publication number
- CN2809844Y CN2809844Y CN 200520073604 CN200520073604U CN2809844Y CN 2809844 Y CN2809844 Y CN 2809844Y CN 200520073604 CN200520073604 CN 200520073604 CN 200520073604 U CN200520073604 U CN 200520073604U CN 2809844 Y CN2809844 Y CN 2809844Y
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- CN
- China
- Prior art keywords
- indicating device
- jam plate
- load switch
- bypass
- pressure sensor
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Abstract
The utility model relates to a locking and indicating device for the pressure loss of a bypass load switch, which comprises an operation board with a lock groove, a lock board, a pressure sensor, a guide rod and a spring, wherein the pressure sensor is arranged in an air chamber. One end of the lock board which is hinged on a support base is connected with the spring, and the other end of the lock board is provided with a lock pin which is matched with the lock groove of the operation board. Limited indicating devices capable of indicating the normal pressure state and the pressure loss state of the air chamber are arranged on the lock board and the corresponding chamber wall, and the guide rod which is connected to the pressure sensor is moved along an axial direction and is connected with the lock board. When the air pressure at the inner part of the air chamber is lower than the permitted and lowest functional air pressure, the utility model can mechanically lock an operation mechanism, can make the switch not carry out the operation of continuously separating and closing a gate, and can display pressure loss signals.
Description
Technical field
The utility model relates to a kind of safety device of bypass on-load switch, especially relates to a kind of gas no-voltage dead locking indicating device of bypass on-load switch.
Background technology
Along with information-based, high-tech development, the application of electric energy has been proposed unbroken requirement, and voltage fluctuation has also been had strict requirement.It is main that existing 10kV distribution line mostly adopts the power failure operation, and live line working is auxilliary, but the 10kV distribution line is mainly used in the conveying of enterprises and institutions and town dweller's electricity consumption, wide coverage, and the power failure operation of distribution line directly influences the reliability of power supply.Therefore imperative to the comprehensive uninterrupted operation of 10kV distribution line, and the bypass operation is the important component part of comprehensive uninterrupted operation, it adopts the lead cross-over connection of temporary cable with the working region, and be transported to user in the working region temporarily, then the working region lead is isolated, power failure work in the working region, but the user does not have a power failure, guarantee to recover former wiring state again after the reliability Work of powering finishes, the bypass on-load switch is then as the capital equipment of connecting temporary cable.The Switch main body of present most of on-load switches is arranged in the arc control device, and adopts SF6 gas as arc extinguishing and dielectric, but in use, can make the air chamber decompression because of the leakage of gas, causes a hidden trouble for the safe operation of switch.Though some on-load switches can show that the on-load switch internal pressure changes by Pressure gauge, to increase the security performance of on-load switch, but when air chamber when being lower than the minimal function air pressure of permission, can't implement operating mechanism is carried out mechanical latching, switch still can be realized dividing, closing operation, has potential safety hazard.
Summary of the invention
The purpose of this utility model provides a kind of when the air chamber air pressure inside is lower than the minimal function air pressure of permission, can carry out mechanical latching to operating mechanism, make switch can not continue branch, closing operation, and can show the gas no-voltage dead locking indicating device of the bypass on-load switch of decompression signal.
The utility model is that the technical scheme that achieves the above object is: a kind of gas no-voltage dead locking indicating device of bypass on-load switch, comprise the operation panel, the jam plate that have locked groove, be installed in pressure sensor, guide rod and spring in the air chamber, the jam plate one end that is hinged on the bearing is connected with spring, the other end has the lock pin that the locked groove with operation panel matches, and on the jam plate and corresponding locular wall be provided with the spacing indicating device that can indicate the normal and decompression state of air chamber pressure, be connected guide rod on the pressure sensor and move along its axis and join with jam plate.
The utility model is arranged on pressure sensor in the air chamber with isolated from atmosphere, air chamber pressure is monitored in real time, when the air chamber internal gas leaks into the minimal function pressure that is lower than permission, under the differential pressure action that produces between air chamber and the atmosphere, pressure sensor shrinks in air chamber and moves, and drives guide rod rigidly connected with it and moves, and rotates along its hinged-support thereby drive jam plate, in the jam plate rotation process, make spacing indicating device locking show the decompression state.Simultaneously the lock pin on the jam plate is connected in the locked groove of operation panel of operating mechanism, deciliter operating mechanism of switch is implemented locking, and can't carry out branch, closing operation, has increased substantially the security reliability of on-load switch.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Structural representation when Fig. 1 is the utility model no-voltage dead locking.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Structural representation when Fig. 3 is the utility model operate as normal.
Wherein: 1-operation panel; 2-lock pin; 3-jam plate; 4-spherical indicating device; 5-inner magnet; 6-pivot pin; 7-slide plate, 8-guide rod; 9-pressure sensor; 10-spring; 11-dividing plate; 12-locular wall.
Embodiment
The gas no-voltage dead locking indicating device of the bypass on-load switch shown in Fig. 1,3 comprises operation panel 1, the jam plate 3 that has locked groove 1-1, the transducer 9 that is installed in gas chamber clapboard 11 upward pressures, guide rod 8 and spring 10.The jam plate 3 one ends that are hinged on the bearing are connected with spring 10, the other end has the lock pin 2 that the locked groove 1-1 with operation panel 1 matches, when jam plate 3 rotates, as shown in Figure 1, lock pin 2 engages with the locked groove 1-1 of operation panel 1, just often lock pin 2 then breaks away from the locked groove 1-1 of operation panel 1, be provided with the spacing indicating device that to indicate the normal and decompression state of air chamber pressure on the jam plate 3 and on the corresponding locular wall 12, this spacing indicating device is seen employing magnetic coupler element shown in Figure 2, constitute by the spherical indicating device 4 that is contained in two opposite inner magnets 5 of jam plate 3 outside magnetic poles and is connected locular wall 12 outsides, because the metal case is whole, make on-load switch keep shielding properties preferably, spherical indicating device 4 is equipped with two outer magnets, and the magnetic pole of outer magnet is corresponding with the magnetic of two inner magnets 5, the different colours sign is set on two outer magnets, when the inner magnet 5 of anti-magnetic pole is close with the magnet in the spherical indicating device 4, under magneticaction, make spherical indicating device 4 produce rotation, thereby show the normal and decompression state of air chamber pressure.Spacing indicating device of the present utility model also is made of the bayonet lock that is arranged on the locked groove on jam plate 3 outsides and be arranged on the locular wall 12, and the different colours sign is set on the bayonet lock, shows the state of air chamber pressure by spacing indicating device.Be connected guide rod 8 on the pressure sensor 9 and pass gas chamber clapboard 11 and join with jam plate 3, these guide rod 8 its extension elongations can be regulated, and jam plate 3 is connected with spring 10, and the other end of spring 10 is connected with locular wall.See shown in Figure 1ly, also can be provided with pivot pin 6 on the jam plate 3 of the present utility model, slide plate 7 is connected with jam plate 3 by pivot pin 6, and a side of slide plate 7 is connected with spring 10.Pressure sensor 9 of the present utility model can adopt metal bellow type pressure sensor or diaphragm type pressure sensor, as shown in Figure 3, when air chamber pressure just often, pressure sensor 9 drives guide rods 8 and slide plate 7 clampings, makes the spacing convex shoulder at the top of guide rod 8 be connected to the distolateral of slide plate 7.See shown in Figure 1, when the pressure difference that monitors air chamber pressure and atmospheric pressure when pressure sensor 9 is lower than the minimal function atmospheric pressure value of permission, pressure sensor 9 shrinks to drive in the guide rod 8 and contracts, under the effect of spring 10, pulling slide plate 7 moves, and jam plate 3 rotates along its hinged-support, lock pin 2 is cooperated with the locked groove 1-1 of operation panel 1, operating mechanism is carried out mechanical latching, guarantee that air chamber when being lower than the minimal function pressure of permission, can't operate.
See shown in Figure 1ly, jam plate 3 of the present utility model is the Y type, to alleviate jam plate weight, improves the portability of operation.
Claims (8)
1, a kind of gas no-voltage dead locking indicating device of bypass on-load switch, it is characterized in that: comprise the operation panel (1) that has locked groove (1-1), jam plate (3), be installed in the pressure sensor (9) in the air chamber, guide rod (8) and spring (10), jam plate (3) the one end that is hinged on the bearing is connected with spring (10), the other end has the lock pin (2) that the locked groove (1-1) with operation panel (1) matches, and jam plate (3) is gone up and corresponding locular wall is provided with the spacing indicating device that can indicate the normal and decompression state of air chamber pressure, is connected guide rod (8) on the pressure sensor (9) and moves along its axis and join with jam plate (3).
2, the gas no-voltage dead locking indicating device of bypass on-load switch according to claim 1, it is characterized in that: described spacing indicating device is by spherical indicating device (4) formation that is contained in opposite two inner magnets (5) of jam plate (3) outside and magnetic pole and is arranged on the locular wall outside, be equipped with and the corresponding outer magnet of two inner magnets (5) magnetic pole in the spherical indicating device (4), and on the spherical indicating device (4) sign be set.
3, the gas no-voltage dead locking indicating device of bypass on-load switch according to claim 1 is characterized in that: described spacing indicating device is made of the bayonet lock that is arranged on the locked groove on jam plate (3) outside and be arranged on the locular wall, and bayonet lock is provided with sign.
4, according to the gas no-voltage dead locking indicating device of the described bypass on-load switch of one of claim 1 to 3, it is characterized in that: described jam plate (3) is the Y type,
5, the gas no-voltage dead locking indicating device of bypass on-load switch according to claim 1, it is characterized in that: described jam plate (3) is provided with pivot pin (6), slide plate (7) is connected with jam plate (3) by pivot pin (6), and a side of slide plate (7) is connected with spring (10).
6, the gas no-voltage dead locking indicating device of bypass on-load switch according to claim 1 is characterized in that: described pressure sensor (9) is metal bellow type pressure sensor or diaphragm type pressure sensor.
7, the gas no-voltage dead locking indicating device of bypass on-load switch according to claim 1, it is characterized in that: the top of described guide rod (8) is provided with spacing convex shoulder.
8, according to the gas no-voltage dead locking indicating device of claim 1 or 7 described bypass on-load switches, it is characterized in that: described its extension elongation of guide rod (8) that is contained in (9) on the pressure sensor can be regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073604 CN2809844Y (en) | 2005-07-14 | 2005-07-14 | Apparatus for locking bypass load switch upon air press loss with indication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073604 CN2809844Y (en) | 2005-07-14 | 2005-07-14 | Apparatus for locking bypass load switch upon air press loss with indication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809844Y true CN2809844Y (en) | 2006-08-23 |
Family
ID=36926029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073604 Expired - Lifetime CN2809844Y (en) | 2005-07-14 | 2005-07-14 | Apparatus for locking bypass load switch upon air press loss with indication function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809844Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739791B (en) * | 2008-11-20 | 2012-11-14 | 上海天灵开关厂有限公司 | Atmospheric pressure indicating alarm device of sulfur hexafluoride ring net load switch |
| CN107895670A (en) * | 2016-11-30 | 2018-04-10 | 湛江高压电器有限公司 | A kind of SF6 breakers low pressure latch-up protection device |
| CN109830399A (en) * | 2017-11-23 | 2019-05-31 | 天津平高智能电气有限公司 | A kind of low pressure blocking device and the sulphur hexafloride circuit breaker using the device |
-
2005
- 2005-07-14 CN CN 200520073604 patent/CN2809844Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739791B (en) * | 2008-11-20 | 2012-11-14 | 上海天灵开关厂有限公司 | Atmospheric pressure indicating alarm device of sulfur hexafluoride ring net load switch |
| CN107895670A (en) * | 2016-11-30 | 2018-04-10 | 湛江高压电器有限公司 | A kind of SF6 breakers low pressure latch-up protection device |
| CN107895670B (en) * | 2016-11-30 | 2019-10-29 | 湛江高压电器有限公司 | A kind of SF6Breaker low pressure latch-up protection device |
| CN109830399A (en) * | 2017-11-23 | 2019-05-31 | 天津平高智能电气有限公司 | A kind of low pressure blocking device and the sulphur hexafloride circuit breaker using the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150714 Granted publication date: 20060823 |
|
| EXPY | Termination of patent right or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Xinmin Document name: Notification of Expiration of Patent Right Duration |