CN203721521U - Rapid arc-extinguishing isolation switch - Google Patents
Rapid arc-extinguishing isolation switch Download PDFInfo
- Publication number
- CN203721521U CN203721521U CN201420041257.7U CN201420041257U CN203721521U CN 203721521 U CN203721521 U CN 203721521U CN 201420041257 U CN201420041257 U CN 201420041257U CN 203721521 U CN203721521 U CN 203721521U
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- CN
- China
- Prior art keywords
- opening
- rotating disk
- transmission handle
- spheroid
- isolating switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a rapid arc-extinguishing isolation switch. An insulation board is arranged on one face of a wall body, and a shell is arranged on the other face of the wall body. During the opening process and the closing process, a transmission handle acts to drive a transmission handle hinge point to be close to or away from an opening. When a contact knife and a contact end are combined, the rapid arc-extinguishing isolation switch is in a closing state, a pull spring is drawn by the transmission handle hinge point and the opening hinge points, the elastic potential energy is stored, and the turntable and the shell are fixed and not rotate relatively via a locking device. In the case of opening operation, a rocking rod is operated to enable the turntable to be disengaged from locking of the locking device, the turntable can rotate freely relative to the shell, the pull spring releases the elastic potential energy to work on the transmission handle hinge point, the transmission handle obtains an acceleration speed and the acceleration speed is transmitted to the contact knife, a force enabling the contact knife to be away from the contact end is provided for the contact knife, the contact knife obtains an acceleration speed, the opening process is quickened, the distance between the contact knife and the contact end is quickly increased, density of free gases is reduced, electric arcs can be quickly extinguished, and arc extinguishing is quickened.
Description
Technical field
The utility model relates to a kind of device for switching, and more particularly, it relates to a kind of isolating switch.
Background technology
Isolating switch is in high-voltage switch electric appliance, to use maximum a kind of electrical equipment, as its name suggests, plays buffer action in circuit.The principles and structure of itself is fairly simple, but because use amount is large, functional reliability requires high, and the impact of design, foundation and safe operation on electric substation, power plant is all larger.
The switching of isolating switch has operational procedure, its can not on-load operation because just flowing between power supply and load when being isolated suddenly switch and blocking when large electric current, can be at knife-edge part generation electric arc, between three edges of a knife very easily there is arc short circuit in (alternate), causes large area blackout.Even if but disconnected loop, if isolating switch place side has the existence of the electric equipment (such as cable etc.) of high capacitance, still have residual charge, now open a sluice gate operation, also can produce electric arc, the temperature of electric arc, up to thousands of degrees Celsius, burns out contact, even causes contact melting welding, if electric arc does not extinguish immediately, the operating personnel that just may burn, burning apparatus, even leads to fire.
At present, isolating switch on market, it comprise insulation board and and be located at the static contact seat of insulation board one side, described insulation board middle part is provided with opening, and described static contact seat comprises hinged end and contact jaw, and both are symmetricly set in the both sides of opening, described hinged end is hinged with contact knife, the middle part of described contact knife is connected with gangbar, and described gangbar is hinged with transmission handle, and described transmission handle is through opening and be connected with operating mechanism in the opposite side of the relative static contact seat of insulation board.The insulation board of isolating switch is fixedly mounted on the side wall with the body of wall of groove, its transmission handle is connected with operating mechanism through the groove of body of wall, operating mechanism is installed on the opposite side metope of body of wall, control operation mechanism, by transmission handle and gangbar transmission, control contact knife and overturn around hinged end, realize the other end of contact knife and the joint of contact jaw and separate, realize switching.
This isolating switch, its operating mechanism is generally rocker-type operating mechanism or rotary operation mechanism, point sum velocity of contact knife and contact jaw is even, although the side at contact jaw arranges arc-control device, accelerate arc extinguishing, reduce the harm that electric arc brings, but the key of pilot arc is the distance of the contact jaw of contact knife and static contact seat, the spacing that contact knife and contact jaw are opened a sluice gate moment is very little, thereby cause the generation of electric arc, electric arc is the free gas of high temperature high conductivity, how in the time opening a sluice gate, to make the distance of contact knife and contact jaw increase fast, reduce the density of free gas, electric arc is extinguished fast, accelerate arc extinguishing, it is current problem to be solved.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of fast arc extinction isolating switch, can in the time opening a sluice gate, make the distance of contact knife and contact jaw increase fast, reduces the density of free gas, and electric arc is extinguished fast, accelerates arc extinguishing.
For achieving the above object, the utility model provides following technical scheme: a kind of fast arc extinction isolating switch, comprise insulation board and and be located at the static contact seat of insulation board one side, described insulation board middle part is provided with opening, described static contact seat comprises hinged end and contact jaw, both are symmetricly set in the both sides of opening, described hinged end is hinged with contact knife, described contact knife is conducting and the disjunction with contact jaw around hinged end upset realization, the middle part of described contact knife is connected with gangbar, described gangbar is hinged with transmission handle, described transmission handle is through opening and be connected with operating mechanism in the opposite side of the relative static contact seat of insulation board, described operating mechanism comprises housing, in described housing, be provided with rotating disk, described rotating disk is fixedly connected with rocking bar, described housing is provided with the chute for rocking bar upset, described rocking bar extends to outside through chute, the edge of described rotating disk is hinged with drive link, described drive link is fixedly connected with transmission handle, in described housing, be also provided with locking device, described transmission handle is installed with transmission handle pin joint, the edge of described opening is installed with opening pin joint, between described transmission handle pin joint and opening pin joint, be connected with extension spring, described extension spring is the shape setting that is stretched in the time of "on" position.
By adopting technique scheme, insulation board is arranged on to the one side of body of wall, housing is arranged on to the another side of body of wall, in the process of opening a sluice gate and close a floodgate, transmission handle action drive transmission handle pin joint near or away from opening, when contact knife engages with contact jaw, fast arc extinction isolating switch is in the time of "on" position, extension spring is transmitted handle pin joint and opening pin joint stretches, save flexible potential energy, make rotating disk and housing locking by locking device, do not relatively rotate, in the time that needs carry out sub-switching operation, operation rocking bar makes go out of lock device locking of rotating disk, rotating disk can freely rotate relative to housing, now extension spring discharges elastic potential energy, transmission handle pin joint is done work, make transmission handle obtain an acceleration, acceleration conducts to contact knife, for contact knife provides one to make its power away from contact jaw, contact knife obtains an acceleration, separating brake process is accelerated, thereby the distance of contact knife and contact jaw is increased fast, reduce the density of free gas, electric arc is extinguished fast, accelerate arc extinguishing.
The utility model is further set to: described opening pin joint arranges two, and described two opening pin joints are oppositely arranged, and between described two opening pin joints and transmission handle pin joint, is all connected with extension spring.
By adopting technique scheme, the stressed balance and stability more of transmission handle while making to open a sluice gate, it is reliable that guarantee is opened a sluice gate, and ensures fast arc extinction.
The utility model is further set to: described locking device comprises mounting shell, described mounting shell is fixedly installed in housing, in described mounting shell, be provided with spheroid and the slideway for spheroid slippage, one end of described slideway is provided with limiting through hole, its other end is provided with spring, the aperture of described limiting through hole is less than the diameter of spheroid, described spheroid is connected between limiting through hole and spring, described limiting through hole is towards rotating disk setting, described rotating disk is provided with combined floodgate hole clipping, and described spheroid is connected in combined floodgate hole clipping in the time of "on" position.
By adopting technique scheme, when fast arc extinction isolating switch is during in "on" position, spheroid is supported and is located in limiting through hole under the effect of spring, its part spheroid is exposed outside mounting shell and be connected in combined floodgate hole clipping, make rotating disk relative with housing fixing, ensure that fast arc extinction isolating switch does not open by mistake and closes.
The utility model is further set to: on described rotating disk, be also provided with and open a sluice gate hole clipping, described spheroid is connected to and opens a sluice gate in hole clipping in the time opening a sluice gate state.
By adopting technique scheme, in the time opening a sluice gate to operate, extension spring discharges elastic potential energy acceleration contact knife and disengages end, accelerate arc extinguishing, but after contact knife opens a sluice gate to put in place, contact knife still exists certain springing phenomenon, make the close trend of the oriented contact jaw of contact knife, may cause arc reignition, and arrange open a sluice gate hole clipping after, in the time that contact knife opens a sluice gate to put in place, spheroid is just engaged to opens a sluice gate in hole clipping, the phenomenon of effectively having avoided contact knife that springing phenomenon brings to swing, prevents arc reignition.
The utility model is further set to: the shape of described combined floodgate hole clipping is all suitable with the shape of spheroid with the shape of opening a sluice gate hole clipping.
By adopting technique scheme, the combination of make spheroid and combined floodgate hole clipping, opening a sluice gate hole clipping is tight, and engaging is firm, guarantee locking effect.
The utility model is further set to: described rotating disk is provided with slide rail, and the track of described slide rail and the spheroid movement locus on rotating disk is suitable, and the two ends of described slide rail connect respectively combined floodgate hole clipping and open a sluice gate hole clipping.
By adopting technique scheme, make the course of action of rotating disk and locking device more stable, improve the stability of fast arc extinction isolating switch work.
The utility model is further set to: in described slide rail, scribble lubricating oil.
By adopting technique scheme, spheroid slippage in slide rail is more smooth, and the frictional force that minimizing spheroid and rotating disk butt bring disengages to contact knife the inhibition that end causes fast, makes arc extinguishing rapider.
The utility model is further set to: the both sides of described rotating disk are equipped with the locking device of same structure.
By adopting technique scheme, the locking effect when locking device of both sides makes open a sluice gate and close a floodgate is more effective, and in both sides, rotating disk is played to clamping action, makes rotating disk that bias not occur, the more stable smoothness of working.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model fast arc extinction isolating switch embodiment;
Fig. 2 is the locking device structure schematic diagram of the utility model fast arc extinction isolating switch embodiment;
Fig. 3 is the operating mechanism exploded view of the utility model fast arc extinction isolating switch embodiment.
Description of reference numerals: 1, insulation board; 11, opening; 111, opening pin joint; 2, static contact seat; 21, hinged end; 22, contact jaw; 23, contact knife; 3, gangbar; 4, transmission handle; 41, transmission handle pin joint; 5, operating mechanism; 51, housing; 511, chute; 52, rotating disk; 521, rocking bar; 522, combined floodgate hole clipping; 523, open a sluice gate hole clipping; 524, slide rail; 53, drive link; 6, locking device; 61, mounting shell; 62, spheroid; 63, slideway; 64, limiting through hole; 65, spring; 7, extension spring.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model fast arc extinction isolating switch embodiment is described further.
A kind of fast arc extinction isolating switch, comprise insulation board 1 and and be located at the static contact seat 2 of insulation board 1 one sides, described insulation board 1 middle part is provided with opening 11, described static contact seat 2 comprises hinged end 21 and contact jaw 22, both are symmetricly set in the both sides of opening 11, described hinged end 21 is hinged with contact knife 23, described contact knife 23 is conducting and the disjunction with contact jaw 22 around hinged end 21 upset realizations, the middle part of described contact knife 23 is connected with gangbar 3, described gangbar 3 is hinged with transmission handle 4, described transmission handle 4 is through opening 11 and be connected with operating mechanism 5 in the opposite side of insulation board 1 relative static contact seat 2, described operating mechanism 5 comprises housing 51, in described housing 51, be provided with rotating disk 52, described rotating disk 52 is fixedly connected with rocking bar 521, described housing 51 is provided with the chute 511 overturning for rocking bar 521, described rocking bar 521 extends to housing 51 outsides through chute 511, the edge of described rotating disk 52 is hinged with drive link 53, described drive link 53 is fixedly connected with transmission handle 4, in described housing 51, be also provided with locking device 6, described transmission handle 4 is installed with transmission handle pin joint 41, the edge of described opening 11 is installed with opening pin joint 111, between described transmission handle pin joint 41 and opening pin joint 111, be connected with extension spring 7, described extension spring 7 is the shape setting that is stretched in the time of "on" position.
By adopting technique scheme, insulation board 1 is arranged on to the one side of body of wall, housing 51 is arranged on to the another side of body of wall, in the process of opening a sluice gate and close a floodgate, transmission handle 4 action drive transmission handle pin joints 41 near or away from opening 11, when contact knife 23 engages with contact jaw 22, fast arc extinction isolating switch is in the time of "on" position, extension spring 7 is transmitted handle pin joint 41 and opening pin joint 111 stretches, save flexible potential energy, by locking device 6, rotating disk 52 and housing 51 are locked, do not relatively rotate, in the time that needs carry out sub-switching operation, operation rocking bar 521 locks rotating disk 52 device 6 that goes out of lock, rotating disk 52 can freely rotate relative to housing 51, now extension spring 7 discharges elastic potential energy, transmission handle pin joint 41 is done work, make transmission handle 4 obtain an acceleration, acceleration conducts to contact knife 23, for contact knife 23 provides one to make its power away from contact jaw 22, contact knife 23 obtains an acceleration, separating brake process is accelerated, thereby the distance of contact knife 23 and contact jaw 22 is increased fast, reduce the density of free gas, electric arc is extinguished fast, accelerate arc extinguishing.
Described opening pin joint 111 arranges two, and described two opening pin joints 111 are oppositely arranged, and between described two opening pin joints 111 and transmission handle pin joint 41, is all connected with extension spring 7.
By adopting technique scheme, the stressed balance and stability more of transmission handle 4 while making to open a sluice gate, it is reliable that guarantee is opened a sluice gate, and ensures fast arc extinction.
Described locking device 6 comprises mounting shell 61, described mounting shell 61 is fixedly installed in housing 51, in described mounting shell 61, be provided with spheroid 62 and the slideway 63 for spheroid 62 slippages, one end of described slideway 63 is provided with limiting through hole 64, its other end is provided with spring 65, the aperture of described limiting through hole 64 is less than the diameter of spheroid 62, described spheroid 62 is connected between limiting through hole 64 and spring 65, described limiting through hole 64 arranges towards rotating disk 52, described rotating disk 52 is provided with combined floodgate hole clipping 522, and described spheroid 62 is connected in combined floodgate hole clipping 522 in the time of "on" position.
By adopting technique scheme, when fast arc extinction isolating switch is during in "on" position, spheroid 62 is supported and is located in limiting through hole 64 under the effect of spring 65, its part spheroid 62 is exposed outside mounting shell 61 and be connected in combined floodgate hole clipping 522, make rotating disk 52 relative with housing 51 fixing, ensure that fast arc extinction isolating switch does not open by mistake and closes.
On described rotating disk 52, be also provided with and open a sluice gate hole clipping 523, described spheroid 62 is connected in the time opening a sluice gate state opens a sluice gate in hole clipping 523.
By adopting technique scheme, in the time opening a sluice gate to operate, extension spring 7 discharges elastic potential energy acceleration contact knife 23 and disengages end 22, accelerate arc extinguishing, but after contact knife 23 opens a sluice gate to put in place, still there is certain springing phenomenon in contact knife 23, make the close trend of the oriented contact jaw 22 of contact knife 23, may cause arc reignition, and arrange open a sluice gate hole clipping 523 after, in the time that contact knife 23 opens a sluice gate to put in place, spheroid 62 is just engaged to opens a sluice gate in hole clipping 523, the phenomenon that the contact knife 23 of effectively having avoided springing phenomenon to bring swings, prevents arc reignition.
The shape of described combined floodgate hole clipping 522 is all suitable with the shape of spheroid 62 with the shape of opening a sluice gate hole clipping 523.
By adopting technique scheme, the combination of make spheroid 62 and combined floodgate hole clipping 522, opening a sluice gate hole clipping 523 is tight, and engaging is firm, ensures locking effect.
Described rotating disk 52 is provided with slide rail 524, and the track of described slide rail 524 and the movement locus of spheroid 62 on rotating disk 52 are suitable, and the two ends of described slide rail 524 connect respectively combined floodgate hole clipping 522 and open a sluice gate hole clipping 523.
By adopting technique scheme, make the course of action of rotating disk 52 and locking device 6 more stable, improve the stability of fast arc extinction isolating switch work.
In described slide rail 524, scribble lubricating oil.
By adopting technique scheme, spheroid 62 is more smooth in the interior slippage of slide rail 524, reduces spheroid 62, with the frictional force that rotating disk 52 butts bring, contact knife 23 is disengaged to end 22 inhibitions that cause fast, makes arc extinguishing rapider.
The both sides of described rotating disk 52 are equipped with the locking device 6 of same structure.
By adopting technique scheme, the locking effect when locking device 6 of both sides makes open a sluice gate and close a floodgate is more effective, and in both sides, rotating disk 52 is played to clamping action, makes rotating disk 52 that bias not occur, the more stable smoothness of working.
Claims (8)
1. a fast arc extinction isolating switch, comprise insulation board and and be located at the static contact seat of insulation board one side, described insulation board middle part is provided with opening, described static contact seat comprises hinged end and contact jaw, both are symmetricly set in the both sides of opening, described hinged end is hinged with contact knife, described contact knife is conducting and the disjunction with contact jaw around hinged end upset realization, the middle part of described contact knife is connected with gangbar, described gangbar is hinged with transmission handle, described transmission handle is through opening and be connected with operating mechanism in the opposite side of the relative static contact seat of insulation board, described operating mechanism comprises housing, in described housing, be provided with rotating disk, described rotating disk is fixedly connected with rocking bar, described housing is provided with the chute for rocking bar upset, described rocking bar extends to outside through chute, the edge of described rotating disk is hinged with drive link, described drive link is fixedly connected with transmission handle, it is characterized in that: in described housing, be also provided with locking device, described transmission handle is installed with transmission handle pin joint, the edge of described opening is installed with opening pin joint, between described transmission handle pin joint and opening pin joint, be connected with extension spring, described extension spring is the shape setting that is stretched in the time of "on" position.
2. fast arc extinction isolating switch according to claim 1, is characterized in that: described opening pin joint arranges two, and described two opening pin joints are oppositely arranged, and between described two opening pin joints and transmission handle pin joint, is all connected with extension spring.
3. fast arc extinction isolating switch according to claim 1 and 2, it is characterized in that: described locking device comprises mounting shell, described mounting shell is fixedly installed in housing, in described mounting shell, be provided with spheroid and the slideway for spheroid slippage, one end of described slideway is provided with limiting through hole, its other end is provided with spring, the aperture of described limiting through hole is less than the diameter of spheroid, described spheroid is connected between limiting through hole and spring, described limiting through hole is towards rotating disk setting, described rotating disk is provided with combined floodgate hole clipping, and described spheroid is connected in combined floodgate hole clipping in the time of "on" position.
4. fast arc extinction isolating switch according to claim 3, is characterized in that: on described rotating disk, be also provided with and open a sluice gate hole clipping, described spheroid is connected to and opens a sluice gate in hole clipping in the time opening a sluice gate state.
5. fast arc extinction isolating switch according to claim 4, is characterized in that: the shape of described combined floodgate hole clipping is all suitable with the shape of spheroid with the shape of opening a sluice gate hole clipping.
6. fast arc extinction isolating switch according to claim 5, is characterized in that: described rotating disk is provided with slide rail, the track of described slide rail and the spheroid movement locus on rotating disk is suitable, and the two ends of described slide rail connect respectively combined floodgate hole clipping and open a sluice gate hole clipping.
7. fast arc extinction isolating switch according to claim 6, is characterized in that: in described slide rail, scribble lubricating oil.
8. fast arc extinction isolating switch according to claim 7, is characterized in that: the both sides of described rotating disk are equipped with the locking device of same structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041257.7U CN203721521U (en) | 2014-01-22 | 2014-01-22 | Rapid arc-extinguishing isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041257.7U CN203721521U (en) | 2014-01-22 | 2014-01-22 | Rapid arc-extinguishing isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721521U true CN203721521U (en) | 2014-07-16 |
Family
ID=51160659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041257.7U Expired - Fee Related CN203721521U (en) | 2014-01-22 | 2014-01-22 | Rapid arc-extinguishing isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721521U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993858A (en) * | 2017-11-29 | 2018-05-04 | 宁波伊顿电力科技有限公司 | Switching off/on device with rust removing function |
| CN108010805A (en) * | 2017-11-29 | 2018-05-08 | 宁波伊顿电力科技有限公司 | A kind of manufacture method of divide-shut brake |
| CN108417437A (en) * | 2018-03-28 | 2018-08-17 | 南方电网科学研究院有限责任公司 | A kind of cam holding mechanism kept for dc circuit breaker divide-shut brake |
-
2014
- 2014-01-22 CN CN201420041257.7U patent/CN203721521U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993858A (en) * | 2017-11-29 | 2018-05-04 | 宁波伊顿电力科技有限公司 | Switching off/on device with rust removing function |
| CN108010805A (en) * | 2017-11-29 | 2018-05-08 | 宁波伊顿电力科技有限公司 | A kind of manufacture method of divide-shut brake |
| CN108010805B (en) * | 2017-11-29 | 2019-03-15 | 宁波伊顿电力科技有限公司 | A kind of manufacturing method of switching off/on device |
| CN107993858B (en) * | 2017-11-29 | 2019-03-15 | 宁波伊顿电力科技有限公司 | Switching off/on device with rust removing function |
| CN108417437A (en) * | 2018-03-28 | 2018-08-17 | 南方电网科学研究院有限责任公司 | A kind of cam holding mechanism kept for dc circuit breaker divide-shut brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |