CN203895343U - Locking mechanism for indoor high-voltage isolating switch - Google Patents
Locking mechanism for indoor high-voltage isolating switch Download PDFInfo
- Publication number
- CN203895343U CN203895343U CN201420285076.9U CN201420285076U CN203895343U CN 203895343 U CN203895343 U CN 203895343U CN 201420285076 U CN201420285076 U CN 201420285076U CN 203895343 U CN203895343 U CN 203895343U
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- CN
- China
- Prior art keywords
- lock plate
- magnetic lock
- isolating switch
- pin
- slide block
- Prior art date
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- Expired - Fee Related
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Abstract
A locking mechanism for an indoor high-voltage isolating switch comprises an upper static contact, a lower static contact, a left contact blade, a right contact blade and a magnetic lock plate. The upper end and the lower end of the magnetic lock plate abut against the side surfaces of the contact blades. The upper part and the lower part of the magnetic lock plate and the contact blades are respectively fixed together through a screw assembly. The middle parts of the left contact blade and the right contact blade are connected with a slide block. The slide block is provided with a longitudinal through hole and transverse through holes. A force applying pin which penetrates through the longitudinal through hole of the slide block is arranged. A spacing board is fixed at the end of the force applying pin. The circumference of the force applying pin is provided with an arc groove. A left transverse through hole and a right transverse through hole of the slide block are respectively provided with a steel ball and a fitting pin. The steel ball abuts against the arc groove on the outer wall of the force applying pin. The middle part of the magnetic lock plate is broken. The head of the locking pin corresponds with the breaking part at the middle part of the magnetic lock plate. Supporting rods respectively penetrate the upper part and the lower part of the magnetic lock plate. According to the technical solution, because a locking mechanism is adopted, locking is performed after the isolating switch is switched on in place. The locking mechanism provided by the utility model has advantages of: realizing easy switching-off and switching-on of the isolating switch in place, greatly reducing an operation force to the isolating switch, and improving safety performance of an electrical network.
Description
Technical field
The utility model relates to a kind of isolating switch, particularly a kind of retaining mechanism of indoor high-voltage isolating switch.
Background technology
The indoor high-voltage isolating switch (rated current is following with 1250A) of general little electric current, because contact knife own wt is light, contact area between fixed contact and contact knife is little, contact is also little, the isolating switch of this pattern adopts the directly form of contact, and isolating switch combined floodgate has fully contacted and locked between fixed contact and contact knife after putting in place.But the isolating switch (rated current 1600A-4000A) of large electric current, relation between long-pending according to rated current and cross-sectional area of conductor, along with electric current increases, contact knife deadweight is same to be increased, contact area between fixed contact and contact knife strengthens, contact also increases simultaneously, if still carry out breaking-closing operating by the form of direct contact in this case, operating physical force is just very large, and isolating switch is just difficult to opening and closing in place, exists isolating switch loose contact to cause the hidden danger of power grid accident.
Utility model content
Technical problem to be solved in the utility model is to overcome prior art defect, and original structure is improved, and the retaining mechanism of design indoor high-voltage isolating switch, locks the easy opening and closing in place of isolating switch again after isolating switch combined floodgate is put in place.
Technical solution adopted in the utility model is:
A kind of retaining mechanism of indoor high-voltage isolating switch, comprise upper and lower static contact 7, left and right contact knife 6 and left and right magnetic lock plate 5, the two ends up and down of magnetic lock plate 5 withstand on the side of contact knife 6, the top and the bottom of magnetic lock plate 5 and contact knife 6 are fixed together by screw arbor assembly 9 respectively, it is characterized in that left and right two is connected with slide block 2 the middle part of contact knife 6, slide block 2 is provided with the perforation of vertical and horizontal, be provided with the longitudinal perforation of afterburning pin 4 through slide block 2, afterburning pin 4 ends are fixed with limiting plate 10, circumference on afterburning pin 4 is provided with arc groove 12, in the left and right cross-perforating of slide block 2, be respectively equipped with steel ball 3 and locking pin 1, steel ball 3 is attached in the arc groove 12 of afterburning pin 4 outer walls, the 5 middle part disjunctions of left and right magnetic lock plate, the head of locking pin 1 is corresponding with disjunction place at magnetic lock plate 5 middle parts, the top and the bottom of magnetic lock plate 5 are installed with respectively cramp bar 8.
Operation principle: isolating switch contact portion is made up of fixed contact and contact knife, and support by cramp bar between retaining mechanism part and contact knife, magnetic lock plate.In the time that isolating switch combined floodgate puts in place, fixed contact has contacted with contact knife part but not locking, now retaining mechanism steel ball is in reinforcing pin arc groove, locking pin is at contraction state, between locking pin and magnetic lock plate, there is a gap, at this moment static contact isolation switch and contact knife belong to not locking state, now continue drop-down afterburning pin, steel ball in retaining mechanism skids off outside afterburning pin arc groove, locking pin is spacing through limiting plate to extrapolation and afterburning pin, then locking pin holds out against magnetic lock plate, according to lever principle magnetic lock plate locking fixed contact.
The utility model is analyzed and researched to isolating switch divide-shut brake part, and tests in practice, isolating switch is divided or feed motion is decomposed into two parts.Closing operation: lock again after first isolating switch combined floodgate being put in place; Sub-switching operation: first retaining mechanism is exited, then isolating switch separating brake is put in place.Operating physical force when dividing or closing a floodgate only has the own wt of switch touching knife, and coupling mechanism force is also little, and this mechanism has reduced the operating physical force of isolating switch widely.
The beneficial effects of the utility model are: technical solutions of the utility model are owing to adopting retaining mechanism, after being put in place, isolating switch combined floodgate locks again, the easy opening and closing in place of isolating switch, has reduced the operating physical force of isolating switch widely, has improved the security performance of electrical network.
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Brief description of the drawings:
Fig. 1 is the structural representation before the locking of the utility model embodiment mechanism;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the structural representation after the locking of the utility model embodiment mechanism;
Fig. 4 is the B-B cross-sectional schematic of Fig. 3; .
In figure: 1-locking pin; 2-slide block; 3-steel ball; The afterburning pin of 4-; 5-magnetic lock plate; 6-contact knife; 7-fixed contact; 8-cramp bar; 9-screw arbor assembly; 10-limiting plate; 11-nut; 12-arc groove.
Embodiment
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, a kind of retaining mechanism of indoor high-voltage isolating switch, comprise upper and lower static contact 7, left and right contact knife 6 and left and right magnetic lock plate 5, the two ends up and down of magnetic lock plate 5 withstand on the side of contact knife 6, the top and the bottom of magnetic lock plate 5 and contact knife 6 are fixed together by screw arbor assembly 9 respectively, it is characterized in that left and right two is connected with slide block 2 the middle part of contact knife 6, slide block 2 is provided with the perforation of vertical and horizontal, be provided with the longitudinal perforation of afterburning pin 4 through slide block 2, afterburning pin 4 ends are fixed with limiting plate 10 with nut 11, circumference on afterburning pin 4 is provided with arc groove 12, in the left and right cross-perforating of slide block 2, be respectively equipped with steel ball 3 and locking pin 1, steel ball 3 is attached in the arc groove 12 of afterburning pin 4 outer walls, the 5 middle part disjunctions of left and right magnetic lock plate, the head of locking pin 1 is corresponding with disjunction place at magnetic lock plate 5 middle parts, the top and the bottom of magnetic lock plate 5 and contact knife 6 are installed with respectively cramp bar 8.
Operation principle: isolating switch contact portion is made up of fixed contact 7 and contact knife 6, and support by cramp bar 8 between retaining mechanism part and contact knife 6, magnetic lock plate 7.In the time that isolating switch combined floodgate puts in place, fixed contact has contacted with contact knife part but not locking, now retaining mechanism steel ball 3 is in 4 arc grooves 12 are sold in reinforcing, as Fig. 1 and Fig. 2, locking pin 1 is at contraction state, between locking pin 1 and magnetic lock plate 5, there is a gap h, at this moment static contact isolation switch 7 belongs to not locking state with contact knife 6, now continue drop-down afterburning pin 4, as Fig. 3 and Fig. 4, steel ball 3 in retaining mechanism skids off outside afterburning pin arc groove 12, locking pin 1 is spacing through limiting plate 10 to extrapolation and afterburning pin 4, then locking pin 1 holds out against magnetic lock plate 5, lock fixed contact 7 according to lever principle magnetic lock plate 5.
Claims (1)
1. the retaining mechanism of an indoor high-voltage isolating switch, comprise upper and lower static contact (7), left and right contact knife (6) and left and right magnetic lock plate (5), the two ends up and down of magnetic lock plate (5) withstand on the side of contact knife (6), the top and the bottom of magnetic lock plate (5) and contact knife (6) are fixed together by screw arbor assembly (9) respectively, it is characterized in that left and right two is connected with slide block (2) the middle part of contact knife (6), slide block (2) is provided with the perforation of vertical and horizontal, be provided with the longitudinal perforation of afterburning pin (4) through slide block (2), afterburning pin (4) end is fixed with limiting plate (10), circumference on afterburning pin (4) is provided with arc groove (12), in the left and right cross-perforating of slide block (2), be respectively equipped with steel ball (3) and locking pin (1), steel ball (3) is attached in the arc groove (12) of afterburning pin (4) outer wall, left and right magnetic lock plate (5) middle part disjunction, the head of locking pin (1) is corresponding with disjunction place at magnetic lock plate (5) middle part, the top and the bottom of magnetic lock plate (5) are installed with respectively cramp bar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285076.9U CN203895343U (en) | 2014-05-30 | 2014-05-30 | Locking mechanism for indoor high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285076.9U CN203895343U (en) | 2014-05-30 | 2014-05-30 | Locking mechanism for indoor high-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895343U true CN203895343U (en) | 2014-10-22 |
Family
ID=51721709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285076.9U Expired - Fee Related CN203895343U (en) | 2014-05-30 | 2014-05-30 | Locking mechanism for indoor high-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895343U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518405A (en) * | 2018-05-28 | 2018-09-11 | 河南森源电气股份有限公司 | A kind of transmission shaft and key drive mechanism |
| CN113972087A (en) * | 2020-07-24 | 2022-01-25 | 河南森源电气股份有限公司 | Touch knife assembly and isolating switch |
-
2014
- 2014-05-30 CN CN201420285076.9U patent/CN203895343U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518405A (en) * | 2018-05-28 | 2018-09-11 | 河南森源电气股份有限公司 | A kind of transmission shaft and key drive mechanism |
| CN113972087A (en) * | 2020-07-24 | 2022-01-25 | 河南森源电气股份有限公司 | Touch knife assembly and isolating switch |
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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: 20141022 Termination date: 20170530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |