CN218038984U - Improved structure of isolating switch - Google Patents
Improved structure of isolating switch Download PDFInfo
- Publication number
- CN218038984U CN218038984U CN202222142592.3U CN202222142592U CN218038984U CN 218038984 U CN218038984 U CN 218038984U CN 202222142592 U CN202222142592 U CN 202222142592U CN 218038984 U CN218038984 U CN 218038984U
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- China
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- knife switch
- disconnecting link
- switch piece
- contact
- hinged
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Abstract
The utility model discloses an improved structure of an isolating switch, which comprises a base, two post insulators, a static contact, a moving contact and a disconnecting link; the lower ends of the two post insulators are fixed on the base and are arranged oppositely, the static contact and the moving contact are respectively and fixedly arranged at the upper ends of the two post insulators, one end of the disconnecting link is hinged to the upper end of the post insulator provided with the static contact and is clamped with the static contact, and the other end of the disconnecting link is a movable end and is clamped on the moving contact; and magnetic locking plates are fixedly arranged on the outer walls of the two sides of the disconnecting link respectively. The utility model discloses fixed mounting has the magnetism jam plate of being made by stainless steel material respectively on the both sides outer wall of switch, and the switch of installing the magnetism jam plate has higher rigidity, and the switch keeps good contact with static contact, moving contact, and isolator can keep good electrical property through tolerating 20kA 4S of heavy current in short-term after.
Description
Technical Field
The utility model relates to an electrical equipment especially relates to an isolator's improvement structure.
Background
After the existing outdoor isolating switch passes through the short-time withstand current of 20kA/4S, because the large current can generate large electrodynamic force and high temperature instantly through the isolating switch, the conductive part on the isolating switch is influenced by the electrodynamic force and the high temperature, the knife blade can deform, the clamping force is reduced, the knife blade cannot be clamped with the contact, the contact resistance is increased, and the conductive performance of the isolating switch is reduced, so that the technical requirement of a power grid cannot be met. The potential safety hazard of burning out can exist after such isolator hangs the net operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a keep good performance's isolator's improvement structure behind heavy current.
In order to achieve the above object, the technical solution of the present invention is:
the utility model relates to an improved structure of an isolating switch, which comprises a base, two post insulators, a static contact, a moving contact and a disconnecting link; the lower ends of the two post insulators are fixed on the base and are arranged oppositely, the static contact and the moving contact are respectively and fixedly arranged at the upper ends of the two post insulators, one end of the disconnecting link is hinged to the upper end of the post insulator provided with the static contact and is clamped with the static contact, and the other end of the disconnecting link is a movable end and is clamped on the moving contact; and magnetic locking plates are fixedly arranged on the outer walls of the two sides of the disconnecting link respectively.
The utility model discloses fixed mounting has the magnetic locking board respectively on the both sides outer wall of switch and static contact, and fixed mounting has the magnetic locking board that stainless steel material made respectively on the both sides outer wall of switch and moving contact.
And the inner wall of the magnetic lock plate, which is contacted with the disconnecting link, is provided with a bulge.
The movable end of the disconnecting link is provided with a sleeve made of stainless steel materials.
The knife switch comprises a left knife switch piece, a right knife switch piece, a hinged bolt, a movable end fixed pin, a static end fixed pin, a hook, a torsion spring and a pull ring; the left knife switch blade and the right knife switch blade are arranged oppositely, the hinged end of the left knife switch blade and the hinged end of the right knife switch blade are hinged to the upper end of a post insulator provided with a fixed contact, a hinged bolt and a fixed end fixing pin are fixedly connected to the hinged end of the left knife switch blade and the right knife switch blade, two magnetic lock plates are respectively fixed on the outer wall of the left knife switch blade and the outer wall of the right knife switch blade, a movable end bolt and a movable end fixing pin are fixedly connected to the movable ends of the left knife switch blade and the right knife switch blade, the two magnetic lock plates are respectively fixed on the outer wall of the left knife switch blade and the outer wall of the right knife switch blade, a sleeve is sleeved in the middle of the movable end bolt, and two ends of the sleeve abut against the inner walls of the left knife switch blade and the right knife switch blade; the hook is sleeved on the movable end fixing pin, the torsional spring is sleeved on the movable end fixing pin, and two hanging pins of the torsional spring are respectively hung on the hook and the left disconnecting link; the pull ring is hinged at the movable ends of the left knife switch blade and the right knife switch blade, and the lower end of the pull ring abuts against the hook and is used for shifting the hook.
After the scheme is adopted, the utility model discloses fixed mounting has the magnetic locking board of being made by stainless steel material respectively on the both sides outer wall of switch, the switch of installing the magnetic locking board has higher rigidity, because the melting point of the stainless steel that stainless steel material made is higher than the melting point of copper, when the switch appears becoming soft, the stainless steel can also keep fine rigidity, keep the clamp force of contact, switch and static contact, moving contact keep good contact, can make outdoor isolator can keep good electrical property after tolerating heavy current 20kA 4S through the short-term like this. Furthermore, the utility model discloses the sleeve that the one end at the switch increased stainless steel material and made for the switch warp less.
The invention will be further described with reference to the drawings and specific embodiments.
Drawings
Fig. 1 is an isometric view of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is an isometric view of the present invention hook;
fig. 4 is an isometric view of a first embodiment of the magnetic locking plate of the present invention;
fig. 5 is an isometric view of a second embodiment of the magnetic locking plate of the present invention.
Detailed Description
As shown in fig. 1-5, the present invention relates to an improved structure of an isolating switch, which comprises a base 1, two post insulators 2, a static contact 3, a moving contact 4, a disconnecting link 5, and two magnetic locking plates 61, 62.
The lower ends of the two post insulators 2 are fixed on the base 1 and are oppositely arranged, the static contact 3 and the moving contact 4 are respectively and fixedly arranged at the upper ends of the two post insulators 2, one end of the disconnecting link 5 is hinged to the upper end of the post insulator 2 provided with the static contact 3 and is clamped with the static contact 3, and the other end of the disconnecting link 5 is a movable end and is clamped on the moving contact 4; magnetic lock plates 61 made of stainless steel materials are fixedly installed on the outer walls of the two sides of the knife switch 5, which are in contact with the static contact 3, respectively, and the magnetic lock plates 61 are rear magnetic lock plates; the outer walls of the two sides of the knife switch 5 contacting with the movable contact 4 are respectively fixedly provided with a magnetic locking plate 62 made of stainless steel material, and the magnetic locking plate 62 is a front magnetic locking plate.
The inner walls of the magnetic lock plates 61 and 62 contacting with the knife switch are provided with protrusions 611 and 621.
The knife switch 5 comprises a left knife switch piece 51, a right knife switch piece 52, a sleeve 53, a hinged bolt 54, a movable end bolt 55, a movable end fixing pin 56, a fixed end fixing pin 57, a hook 58, a torsion spring 59 and a pull ring 510; the left knife switch piece 51 and the right knife switch piece 52 are arranged oppositely, the hinged ends of the left knife switch piece 51 and the right knife switch piece 52 are hinged to the upper end of the post insulator 2 provided with the static contact 3, a hinged bolt 54 and a static end fixing pin 57 are fixedly connected to the hinged ends of the left knife switch piece 51 and the right knife switch piece 52, two magnetic locking plates 61 are respectively fixed on the outer wall of the left knife switch piece 51 and the outer wall of the right knife switch piece 52, a movable end bolt 55 and a movable end fixing pin 56 are fixedly connected to the movable ends of the left knife switch piece 51 and the right knife switch piece 52, two magnetic locking plates 62 are respectively fixed on the outer wall of the left knife switch piece 51 and the outer wall of the right knife switch piece 52, a sleeve 53 is sleeved in the middle of the movable end bolt 55, and two ends of the sleeve 53 are abutted against the inner walls of the left knife switch piece 51 and the right knife switch piece 52; the hook 58 is sleeved on the movable end fixing pin 56, the torsion spring 59 is sleeved on the movable end fixing pin 56, and two hanging legs of the torsion spring 59 are respectively hung on the hook 58 and the left disconnecting link 51; the pull ring 510 is hinged at the movable ends of the left knife switch blade 51 and the right knife switch blade 52, and the lower end of the pull ring 510 is abutted against the hook 58 for shifting the hook 58.
As shown in fig. 3, a rivet hole 581 is added to the hook 58 for tightening the magnetic lock plate 62.
The utility model discloses a theory of operation:
the utility model discloses a position with the contact of static contact 3 and moving contact 4 increases the front and back magnetic locking plate 61 of stainless steel on switch 5, 62 press from both sides tight static contact 3 and moving contact 4, the magnetic locking plate 61 of two places around, 62's both ends respectively have a fixed orifices respectively at the both sides of static contact 3 and moving contact 4, the magnetic locking plate 61 after the equipment, 62's both ends press from both sides tight static contact 3 and moving contact 4 simultaneously, magnetic locking plate 61, 62 press close to the face of switch 5 and all have the arch to press from both sides tight specially to static contact 3 and moving contact 4 positions, also reduce magnetic locking plate 61 simultaneously, 62 and switch 5's contact surface, reduce the temperature and conduct magnetic locking plate 61, 62 is last. A stainless steel sleeve 53 is added to one end of the knife switch 5 to limit and prevent the knife switch 5 from deforming too much. Because the melting point of the stainless steel is higher than that of the copper, when the disconnecting link 5 becomes soft, the stainless steel magnetic locking plates 61 and 62 can also keep good rigidity and keep the clamping force on the static contact 3 and the moving contact 4, so that the isolating switch can always keep good conductive performance.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.
Claims (5)
1. An improved structure of an isolating switch comprises a base, two post insulators, a fixed contact, a movable contact and a disconnecting link; the lower ends of the two post insulators are fixed on the base and are arranged oppositely, the static contact and the moving contact are respectively and fixedly arranged at the upper ends of the two post insulators, one end of the disconnecting link is hinged to the upper end of the post insulator provided with the static contact and is clamped with the static contact, and the other end of the disconnecting link is a movable end and is clamped on the moving contact; the method is characterized in that: and magnetic locking plates are fixedly arranged on the outer walls of the two sides of the disconnecting link respectively.
2. The improvement structure of the isolating switch according to claim 1, characterized in that: the magnetic locking plates are fixedly arranged on the outer walls of the two sides of the disconnecting link, which are contacted with the fixed contact, respectively, and the magnetic locking plates made of stainless steel materials are fixedly arranged on the outer walls of the two sides of the disconnecting link, which are contacted with the moving contact, respectively.
3. The improvement structure of the isolating switch according to claim 1, characterized in that: and the inner wall of the magnetic lock plate, which is contacted with the disconnecting link, is provided with a bulge.
4. The improvement structure of the isolating switch according to claim 1, characterized in that: the movable end of the disconnecting link is provided with a sleeve made of stainless steel materials.
5. The improvement of the isolating switch of claim 1, wherein: the knife switch comprises a left knife switch piece, a right knife switch piece, a hinged bolt, a movable end fixed pin, a static end fixed pin, a hook, a torsion spring and a pull ring; the left knife switch piece and the right knife switch piece are arranged oppositely, the hinged end of the left knife switch piece and the hinged end of the right knife switch piece are hinged to the upper end of a post insulator provided with a fixed contact, a hinged bolt and a fixed end fixing pin are fixedly connected to the hinged end of the left knife switch piece and the hinged end of the right knife switch piece, two magnetic lock plates are respectively fixed to the outer wall of the left knife switch piece and the outer wall of the right knife switch piece, a movable end bolt and a movable end fixing pin are fixedly connected to the movable end of the left knife switch piece and the movable end fixing pin, the two magnetic lock plates are respectively fixed to the outer wall of the left knife switch piece and the outer wall of the right knife switch piece, a sleeve is sleeved in the middle of the movable end bolt, and two ends of the sleeve abut against the inner walls of the left knife switch piece and the right knife switch piece; the hook is sleeved on the movable end fixing pin, the torsional spring is sleeved on the movable end fixing pin, and two hanging pins of the torsional spring are respectively hung on the hook and the left disconnecting link; the pull ring is hinged at the movable ends of the left knife switch blade and the right knife switch blade, and the lower end of the pull ring abuts against the hook and is used for shifting the hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222142592.3U CN218038984U (en) | 2022-08-15 | 2022-08-15 | Improved structure of isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222142592.3U CN218038984U (en) | 2022-08-15 | 2022-08-15 | Improved structure of isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218038984U true CN218038984U (en) | 2022-12-13 |
Family
ID=84347315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222142592.3U Active CN218038984U (en) | 2022-08-15 | 2022-08-15 | Improved structure of isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218038984U (en) |
-
2022
- 2022-08-15 CN CN202222142592.3U patent/CN218038984U/en active Active
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