CN101494131A - Low-voltage knife brake capable of being snapped - Google Patents
Low-voltage knife brake capable of being snapped Download PDFInfo
- Publication number
- CN101494131A CN101494131A CNA2009100680080A CN200910068008A CN101494131A CN 101494131 A CN101494131 A CN 101494131A CN A2009100680080 A CNA2009100680080 A CN A2009100680080A CN 200910068008 A CN200910068008 A CN 200910068008A CN 101494131 A CN101494131 A CN 101494131A
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- CN
- China
- Prior art keywords
- disconnecting link
- bakelite
- low pressure
- connecting plate
- suspension member
- 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.)
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Abstract
The invention relates to a removable low-voltage disconnecting link which comprises a disconnecting link base, disconnecting link holders, fixed contacts, a safety gasket and a moving contact. The two disconnecting link holders are fixedly arranged on the disconnecting link base and respectively provided with a fixed contact, and the moving contact comprises insulation bakelite and two pairs of bakelite connection boards fixedly installed at both sides of the insulation bakelite. The removable low-voltage disconnecting link is characterized in that the safety gasket is arranged between the two bakelite connection boards at one side and a pair of disconnecting link pendants are symmetrically arranged at two outer sides of a pair of the bakelite connection boards. A removing suspension loop is fixedly arranged at the lower parts of the pair of the bakelite connection boards and a switch pull ring is fixedly arranged at the upper ends of the other pair of the bakelite connection boards. A pendant column is vertically installed on one fixed contact and movably hangs with the disconnecting link pendant. The removable low-voltage disconnecting link has reasonable design, ensures the safety of constructors, improves the reliability of power supply, reduces failure frequency and failure processing time, reduces operation cost and increases economic benefit.
Description
Technical field
The invention belongs to low pressure disconnecting link field, especially a kind of formula low pressure disconnecting link of winning.
Background technology
In low-voltage power supply system, the low pressure disconnecting link is installed on the distribution transformer in large quantities.The low pressure disconnecting link in use breaks down sometimes, in fault treating procedure, need to have a power failure and do safety measure (comprise to scheduling to make, hold the emergency first-aid repair ticket, stop that high pressure falls out, electrical verification, high and low pressure side feud etc.), ascend a height to then to become on the stand and carry out troubleshooting.Because low pressure disconnecting link fault is most is that low pressure is insured fault, and the safety plate of existing low pressure disconnecting link is installed on the low pressure turnover line, in order to change safety plate, the staff must just can finish climbing on the distribution transformer stand, the problem of its existence is: 1. carry out the operating procedure complexity of troubleshooting, influenced the speed of troubleshooting; 2. because troubleshooting is work high above the ground, increase the difficulty of troubleshooting, had potential safety hazard; 3. troubleshooting needs long-time the power failure, makes troubles for people's production and life; 4. the disconnecting link holder is the porcelain insulation, and the long-time back porcelain that uses can ftracture owing to colding and heat succeed each other, and influences the reliability of low pressure disconnecting link.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the formula the won low pressure disconnecting link of simple, quick, the easy to use and dependable performance of a kind of troubleshooting is provided.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of formula low pressure disconnecting link of winning, by the disconnecting link base, the disconnecting link holder, fixed contact, safety plate and moving contact constitute, two disconnecting link holders are packed on the disconnecting link base, on two disconnecting link holders, install a fixed contact respectively, moving contact is made of bakelite and two pairs of bakelite connecting plates being packed in its two ends, safety plate is installed between the two bakelite connecting plates of a side, symmetry is installed a pair of disconnecting link suspension member in two outsides of a pair of bakelite connecting plate, install a dislodging ring in this lower end to the bakelite connecting plate, install a switch draw ring in another upper end to the bakelite connecting plate, the vertical suspension member cylinder of installing on a fixed contact, this suspension member cylinder is mounted on the activity of disconnecting link suspension member.
And inboard, described disconnecting link suspension member upper end is parabola shaped opening.
And the parabola opening of described disconnecting link suspension member is the parabola shaped openings of 130 degree.
And the outside of described bakelite connecting plate is installed a spring and by bolt every pair of bakelite connecting plate is linked together respectively.
And the inboard of described bakelite connecting plate is provided with the double-contact bar that closely contacts with fixed contact.
And the last lower edge of described bakelite connecting plate is the arc outer of turning up.
And described disconnecting link holder is by insulated nylon rod and be sleeved on its outside silicon rubber insulator and constitute.
And described suspension member cylinder is any cylinder between 2/3 cylinder and the cylinder.
And described fixed contact is solidly installed by a U-shaped insulator fixture and disconnecting link holder.
Advantage of the present invention and good effect are:
1. the safety plate of this low pressure disconnecting link is installed on the moving contact, the staff may stand in ground and uses the insulation restrictor bar to carry out the processing that articulates of the replacing of winning, insuring of moving contact and moving contact, make the workflow of troubleshooting obtain optimization, cancelled to scheduling and will make, hold the emergency first-aid repair ticket, stop links such as high pressure falls out, electrical verification, high and low pressure side feud, shortened the replacing time greatly, improve troubleshooting speed, avoided work high above the ground simultaneously, guaranteed staff's safety.
2. the lateral deviation when this low pressure disconnecting link adopts the fixing mode can prevent in service and dismounting, avoided the phase fault of operating process effectively, simultaneously, when the low pressure disconnecting link is installed, disconnecting link base plate and horizontal line angle are certain elevation angle, be convenient to the installation of moving contact, guaranteed to utilize the insulation restrictor bar to articulate Shi Buhui and the single-phase earthing problem occurred.
3. this low pressure disconnecting link has been saved grid switching operation and power failure formality numerous and diverse when changing the low pressure insurance in the replacing process, has avoided because low voltage failure causes that middle the pressure has a power failure, in addition, only need the disabling faulty phase in troubleshooting, shortened power failure scope and interruption duration, loss of outage is dropped to minimum.
4. this low pressure disconnecting link is provided with silver-plated contact bar in bakelite connecting plate inboard, has increased the contact area between moving contact and the fixed contact, and moving contact is tightr with contacting of fixed contact under the extruding of both sides spring, has guaranteed the reliably working of low pressure disconnecting link.
5. the holder of this low pressure disconnecting link adopts silicon rubber insulator, and insulator inside is the insulated nylon rod: the insulated nylon rod is approaching with the silicon rubber coefficient of expansion, and the insulator of avoiding the violent lifting of temperature to cause is cracked.
6. the inboard, upper end of the disconnecting link suspension member of this low pressure disconnecting link is the parabola shaped opening of 130 degree, makes things convenient for articulating and winning of moving contact.
7. the present invention is reasonable in design, and it is designed to the form that can win with moving contact, has shortened fault handling time, has guaranteed workmen's safety, has improved the reliability of disconnecting link, has reduced the number of stoppages, has reduced operating cost, has improved economic benefit.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the view of Fig. 1 after moving contact is opened;
Fig. 4 is the structural representation of moving contact.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is further described:
A kind of formula low pressure disconnecting link of winning is made of disconnecting link base 18, two disconnecting link holders 13, fixed contact 1, fixed contact 12 and moving contact.Two disconnecting link holders are by insulated nylon rod (not shown) and be sleeved on its outside silicon rubber insulator 14 formations, two disconnecting link holders are packed in respectively on the disconnecting link base, on two disconnecting link holders, respectively install a fixed contact, its mode of installing is: install a U-shaped insulator fixture 2 on the disconnecting link holder, use screw that fixed contact is packed on the U-shaped insulator fixture; The vertical suspension member cylinder 11 of installing on a fixed contact, this suspension member cylinder is any cylinder between semicylinder and the cylinder, is 2/3 cylinder in the present embodiment, this suspension member cylinder and moving contact activity are hooked together.
The moving contact structure that can win formula low pressure disconnecting link is: moving contact is connected and composed by bakelite 7, safety plate 6, bakelite connecting plate 15,17, the bakelite connecting plate is packed in the two ends of bakelite, safety plate is installed between the two bakelite connecting plates of a side, and this safety plate can be realized the connection of the fixed contact of bakelite connecting plate both sides; The last lower edge of each bakelite connecting plate is the arc outer 3,8 of turning up, and is convenient to the insertion between bakelite connecting plate and the fixed contact or extracts; Each bakelite connecting plate inboard is provided with the double-contact bar 19 that closely contacts with fixed contact, 22, adopt the contact bar can increase the contact area of bakelite connecting plate and fixed contact, guarantee the operate as normal of disconnecting link, at a pair of bakelite connecting plate outside installation one spring 20 and by bolt 9 this is linked together to the bakelite connecting plate, this is linked together to the bakelite connecting plate to bakelite connecting plate outside installation one spring 21 and by bolt 4 at another, by above-mentioned bolt and cooperating of spring regulating every pair of distance between the bakelite connecting plate, make the bakelite connecting plate contact with the reliable of fixed contact; Two outsides of a pair of therein bakelite connecting plate symmetry is installed a pair of disconnecting link suspension member 10, and this inboard, upper end to the disconnecting link suspension member is the parabola shaped opening of 130 degree, the suspension member cylinder on this parabola shaped opening and the fixed contact adapt and with its flexible connection; Install a dislodging ring 16 in the lower end of this bakelite connecting plate, next this dislodging ring can be plucked moving contact or moving contact is articulated on the suspension member cylinder from the suspension member cylinder; Install a switch draw ring 5 in the upper end of another bakelite connecting plate, this switch draw ring can take out the fixed contact of moving contact from an end.
In use, the staff uses the insulation restrictor bar moving contact can be articulated in articulate on the cylinder or from articulating on the cylinder moving contact is won, its method that articulates is: use the insulation restrictor bar that one restrictor bar head is inserted in the ring of seting out and the disconnecting link suspension member is hung on the suspension member cylinder on the fixed contact, then this restrictor bar head is gone out from the dislodging lottery of lotteries, another restrictor bar head is inserted in the switch draw ring and the other end of moving contact is advanced on its corresponding fixed contact; The method of winning is opposite with the method that articulates, and at first the bakelite connecting plate that will hold by the switch draw ring is pulled out from fixed contact, and then by the ring of seting out moving contact is taken off from the suspension member cylinder.
It is emphasized that; embodiment of the present invention is illustrative; rather than it is determinate; therefore the present invention is not limited to the embodiment described in the embodiment; every other execution modes that drawn by those skilled in the art's technical scheme according to the present invention belong to the scope of protection of the invention equally.
Claims (9)
1. can win formula low pressure disconnecting link for one kind, by the disconnecting link base, the disconnecting link holder, fixed contact, safety plate and moving contact constitute, two disconnecting link holders are packed on the disconnecting link base, on two disconnecting link holders, install a fixed contact respectively, moving contact is made of bakelite and two pairs of bakelite connecting plates being packed in its two ends, it is characterized in that: safety plate is installed between the two bakelite connecting plates of a side, symmetry is installed a pair of disconnecting link suspension member in two outsides of a pair of bakelite connecting plate, install a dislodging ring in this lower end to the bakelite connecting plate, install a switch draw ring in another upper end to the bakelite connecting plate, the vertical suspension member cylinder of installing on a fixed contact, this suspension member cylinder is mounted on the activity of disconnecting link suspension member.
2. the formula low pressure disconnecting link of winning according to claim 1 is characterized in that: inboard, described disconnecting link suspension member upper end is parabola shaped opening.
3. the formula low pressure disconnecting link of winning according to claim 2 is characterized in that: the parabola opening of described disconnecting link suspension member is the parabola shaped openings of 130 degree.
4. the formula low pressure disconnecting link of winning according to claim 1 is characterized in that: the outside of described bakelite connecting plate is installed a spring and by bolt every pair of bakelite connecting plate is linked together respectively.
5. according to claim 1 or the 4 described formula low pressure disconnecting links of winning, it is characterized in that: the inboard of described bakelite connecting plate is provided with the double-contact bar that closely contacts with fixed contact.
6. the formula low pressure disconnecting link of winning according to claim 5 is characterized in that: the last lower edge of described bakelite connecting plate is the arc outer of turning up.
7. the formula low pressure disconnecting link of winning according to claim 1 is characterized in that: described disconnecting link holder is by insulated nylon rod and be sleeved on its outside silicon rubber insulator and constitute.
8. the formula low pressure disconnecting link of winning according to claim 1 is characterized in that: described suspension member cylinder is any cylinder between 2/3 cylinder and the cylinder.
9. the formula low pressure disconnecting link of winning according to claim 1, it is characterized in that: described fixed contact is solidly installed by a U-shaped insulator fixture and disconnecting link holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100680080A CN101494131A (en) | 2009-03-03 | 2009-03-03 | Low-voltage knife brake capable of being snapped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100680080A CN101494131A (en) | 2009-03-03 | 2009-03-03 | Low-voltage knife brake capable of being snapped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101494131A true CN101494131A (en) | 2009-07-29 |
Family
ID=40924662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100680080A Pending CN101494131A (en) | 2009-03-03 | 2009-03-03 | Low-voltage knife brake capable of being snapped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101494131A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231342A (en) * | 2010-06-01 | 2011-11-02 | 鞍钢集团矿业公司 | Universal knife switch connector of double-slide-type high-voltage isolation switch |
| CN104021970A (en) * | 2014-05-29 | 2014-09-03 | 国家电网公司 | Electric power line double-knife combination linkage type low-voltage knife fuse switch |
-
2009
- 2009-03-03 CN CNA2009100680080A patent/CN101494131A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231342A (en) * | 2010-06-01 | 2011-11-02 | 鞍钢集团矿业公司 | Universal knife switch connector of double-slide-type high-voltage isolation switch |
| CN104021970A (en) * | 2014-05-29 | 2014-09-03 | 国家电网公司 | Electric power line double-knife combination linkage type low-voltage knife fuse switch |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090729 |