CN201946903U - Self-locking device for valve of removing type metal-enclosed switchgear - Google Patents
Self-locking device for valve of removing type metal-enclosed switchgear Download PDFInfo
- Publication number
- CN201946903U CN201946903U CN2010206939010U CN201020693901U CN201946903U CN 201946903 U CN201946903 U CN 201946903U CN 2010206939010 U CN2010206939010 U CN 2010206939010U CN 201020693901 U CN201020693901 U CN 201020693901U CN 201946903 U CN201946903 U CN 201946903U
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- Prior art keywords
- valve
- drive link
- connecting lever
- type metal
- arm
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Abstract
The utility model discloses a self-locking device for a valve of a removing type metal-enclosed switchgear. The self-locking device mainly comprises a running wheel, a transmission rod, a front crank arm, a rear crank arm, a rotating plate, limiting plates, valve transmission arms, valve rollers, valve transmission rods, an upper valve and a lower valve which are symmetrically arranged on the left side and the right side, wherein the front crank arm is hinged with the transmission rod and drives the transmission rod to move; the other end of the transmission rod is hinged with the rear crank arm and drives the rear crank arm to rotate; the rear crank arm is in rigid connection with the rotating plate, the upper limiting plate and the lower limiting plate, and can prevent the upper valve transmission arm and the lower valve transmission arm from moving in the locking position; the rear ends of both the upper valve transmission arm and the lower valve transmission arm are respectively hinged with the lower ends of both the upper valve transmission rod and the lower valve transmission rod, and the upper and the lower valve transmission arms rotate to drive the upper and the lower valve transmission rods to conduct up-and-down rectilinear motion, so as to drive the valves to be opened or closed. The self-locking device provided by the utility model achieves the self-locking function of the valve of the removing type metal-enclosed switchgear, has a compact structure, and is safe and reliable.
Description
Technical field
The utility model relates to the withdraw type metal enclosed switchgear in the field of electrical equipment, particularly a kind of valve automatic locking apparatus of withdraw type metal enclosed switchgear.
Background technology
The valve that generally adopts on the present armored withdraw type metal enclosed switchgear of 7.2～24kV high pressure is not with automatic locking apparatus, when circuit breaker is in when removing the position, valve can arbitrarily be opened, and the fixed contact of valve back may be charged, if the maintainer does not note or arbitrarily opens valve, exist the danger that touches high-voltage charged body, thereby electric shock accidents takes place.The way of existing solution has two kinds: the one, on valve plate, be printed on caution symbol or tip of the text, and the 2nd, on the valve arrangement transmission crank arm, install padlock additional.Though first method is simple, can not play enforceable effect, the maintainer opens valve owing to misoperation, still electric shock accidents may take place.Second method is to install padlock additional on the valve arrangement transmission crank arm, though this method can play enforceable effect, if comparatively random with common padlock, do not have operating sequence, fail safe is not good, if use program padlock, then costing an arm and a leg, is not that the general user can bear.
The utility model content
The utility model is in order to overcome above the deficiencies in the prior art, and a kind of valve automatic locking apparatus that automatically locks, satisfies requirement of shelter, safe and reliable withdraw type metal enclosed switchgear is provided.
The purpose of this utility model realizes by following technical scheme: a kind of valve automatic locking apparatus of withdraw type metal enclosed switchgear, comprise the parts that the right and left symmetry is set up: movable wheel, drive link, preceding connecting lever, back connecting lever, rotor plate, upper limit plate, lower limiting board, go up the valve transmission arm, down the valve transmission arm, go up the valve roller, down the valve roller, go up the valve drive link, down the valve drive link, go up valve and following valve, on the connecting lever, preceding connecting lever and drive link were hinged before described movable wheel was installed in; The drive link other end is hinged with the back connecting lever; Back connecting lever and rotor plate, upper limit plate and lower limiting board are rigidly connected; The front end of upper and lower valve transmission arm is equipped with the valve roller, and the rear end is hinged with the lower end of upper and lower valve drive link respectively; The upper end of upper and lower valve drive link is rigidly connected with upper and lower valve respectively.
Described going up between valve transmission arm, the following valve transmission arm is provided with the torsion spring that valve is resetted.
Be provided with the tension spring that drive link is resetted between described drive link and the mounting bracket.
When circuit breaker is moved in the process of service position by test position, the valve pressing plate of circuit breaker cart is extruding activity wheel at first, connecting lever travels forward before driving, drive link before being connected on the connecting lever also has a proal action, the other end of drive link is hinged with the back connecting lever, and connecting lever rotates after driving, the rotation of back connecting lever drives part lower limiting board rigidly connected with it, rotor plate, the upper limit plate rotates simultaneously, after turning to extreme position, last valve transmission arm, following valve transmission arm is in the unlocked position, the valve pressing plate of circuit breaker moves on and presses to, following valve roller, in the drive, following valve transmission arm rotates, by with last valve drive link, being rigidly connected of following valve drive link, last valve, following valve makes progress respectively, following both direction moving linearly, thus reach the purpose of unlatching.
When circuit breaker is moved in the process of removing the position by the service position, circuit breaker valve pressing plate is at first removed last valve transmission arm, the restriction of valve transmission arm down, last valve resets by the gravity of self, following valve resets by the torsion of torsion spring, circuit breaker continue to move, the extruding of releasing activity wheel then, and the pulling force by tension spring makes lower limiting board, rotor plate, upper limit plate reset by drive link, limited last valve, the motion of valve down, made valve be locked in closed condition.
The utility model has following advantage with respect to prior art:
The utility model has been realized the valve AutoLock feature of withdraw type metal enclosed switchgear, and compact conformation satisfies requirement of shelter, and is safe and reliable.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the valve automatic locking apparatus of a kind of withdraw type metal enclosed switchgear of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.But execution mode of the present utility model is not limited thereto.
Specific embodiment
The last valve of 1-, the last valve drive link of 2-, valve under the 3-, valve drive link under the 4-, the 5-drive link, connecting lever behind the 6-, the last fairlead of 7-, 8-mounting bracket 1, the 9-tension spring, the movable wheel of 10-mounting bracket 2 11-, connecting lever before the 12-, 13-guide plate, the 14-axle bed, the last valve transmission arm of 15-, 16-torsion spring, valve transmission arm under the 17-, the last valve roller of 18-, valve roller under the 19-, 20-lower limiting board, fairlead under the 21-, 22-rotor plate, 23-upper limit plate
As shown in Figure 1, when circuit breaker cart moves to the service position by test position, the release of valve self-locking mechanism, last valve 1, following valve 3 are normally opened.When circuit breaker is moved in the process of service position by test position, the valve pressing plate of the circuit breaker cart at first preceding connecting lever 12 of extruding activity wheel 11 drives travels forward, drive link 5 before being connected on the connecting lever 12 also has a proal action, the other end of drive link 5 is hinged with back connecting lever 6, and connecting lever 6 rotates after driving, the rotation of back connecting lever 6 drives part rotor plate 22 rigidly connected with it, lower limiting board 20, upper limit plate 23 rotates simultaneously, after turning to extreme position, last valve transmission arm 15, following valve transmission arm 17 is in the unlocked position, the valve pressing plate of circuit breaker moves on and presses to valve roller 18, following valve roller 19, valve transmission arm 15 in the drive, following valve transmission arm 17 rotates, by with last valve drive link 2, being rigidly connected of following valve drive link 4, last valve 1, following valve 3 makes progress respectively, following both direction moving linearly, thus reach the purpose of unlatching.
As shown in Figure 1, when circuit breaker cart is moved to when removing the position by the service position, the locking of valve self-locking mechanism, upper and lower valve can not be opened.When circuit breaker is moved in the process of removing the position by the service position, circuit breaker valve pressing plate is at first removed last valve transmission arm 15, the restriction of valve transmission arm 17 down, last valve 1 resets by the gravity of self, following valve 3 resets by the torsion of torsion spring 16, circuit breaker continues to move, remove extruding then to activity wheel 11, pulling force by tension spring 9 makes rotor plate 22, lower limiting board 20, upper limit plate 23 reset by drive link 5, limited last valve 1, the motion of valve 3 down, made valve be locked in closed condition.
Above-mentioned embodiment is a preferred embodiment of the present utility model; can not limit claim of the present utility model; other any change that does not deviate from the technical solution of the utility model and made or other equivalent substitute mode are included within the protection range of the present utility model.
Claims (3)
1. the valve automatic locking apparatus of a withdraw type metal enclosed switchgear, comprise the parts that the right and left symmetry is set up: movable wheel, drive link, preceding connecting lever, back connecting lever, rotor plate, upper limit plate, lower limiting board, go up the valve transmission arm, down the valve transmission arm, go up the valve roller, down the valve roller, go up the valve drive link, down the valve drive link, go up valve and following valve, it is characterized in that: on the connecting lever, preceding connecting lever and drive link were hinged before described movable wheel was installed in; The drive link other end is hinged with the back connecting lever; Back connecting lever and rotor plate, upper limit plate and lower limiting board are rigidly connected; The front end of upper and lower valve transmission arm is equipped with the valve roller, and the rear end is hinged with the lower end of upper and lower valve drive link respectively; The upper end of upper and lower valve drive link is rigidly connected with upper and lower valve respectively.
2. the valve automatic locking apparatus of a kind of withdraw type metal enclosed switchgear according to claim 1 is characterized in that: be provided with the torsion spring that valve is resetted between described upward valve transmission arm, the following valve transmission arm.
3. the valve automatic locking apparatus of a kind of withdraw type metal enclosed switchgear according to claim 1 is characterized in that: be provided with the tension spring that drive link is resetted between described drive link and the mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206939010U CN201946903U (en) | 2010-12-31 | 2010-12-31 | Self-locking device for valve of removing type metal-enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206939010U CN201946903U (en) | 2010-12-31 | 2010-12-31 | Self-locking device for valve of removing type metal-enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946903U true CN201946903U (en) | 2011-08-24 |
Family
ID=44474239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206939010U Expired - Lifetime CN201946903U (en) | 2010-12-31 | 2010-12-31 | Self-locking device for valve of removing type metal-enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201946903U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208746A (en) * | 2013-04-19 | 2013-07-17 | 四川蓝讯宝迩电子科技有限公司 | Power supply cabinet with limiting electrical cabinet door |
| CN103959583A (en) * | 2011-11-21 | 2014-07-30 | Abb技术股份公司 | Interlocking device for a switchgear |
| CN105162020A (en) * | 2015-10-11 | 2015-12-16 | 陈志源 | 10kV switchgear isolating baffle plate mechanical blocking apparatus |
| CN105162023A (en) * | 2015-10-11 | 2015-12-16 | 陈志源 | 35kV switchgear isolating baffle plate mechanical blocking apparatus |
| CN109524910A (en) * | 2018-11-29 | 2019-03-26 | 江苏南瑞帕威尔电气有限公司 | A kind of interlock for armored withdraw type metal switchgear |
-
2010
- 2010-12-31 CN CN2010206939010U patent/CN201946903U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103959583A (en) * | 2011-11-21 | 2014-07-30 | Abb技术股份公司 | Interlocking device for a switchgear |
| CN103959583B (en) * | 2011-11-21 | 2016-09-28 | Abb技术股份公司 | Interlock for switchgear |
| CN103208746A (en) * | 2013-04-19 | 2013-07-17 | 四川蓝讯宝迩电子科技有限公司 | Power supply cabinet with limiting electrical cabinet door |
| CN105162020A (en) * | 2015-10-11 | 2015-12-16 | 陈志源 | 10kV switchgear isolating baffle plate mechanical blocking apparatus |
| CN105162023A (en) * | 2015-10-11 | 2015-12-16 | 陈志源 | 35kV switchgear isolating baffle plate mechanical blocking apparatus |
| CN109524910A (en) * | 2018-11-29 | 2019-03-26 | 江苏南瑞帕威尔电气有限公司 | A kind of interlock for armored withdraw type metal switchgear |
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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 |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |