CN201294197Y - Assembling structure for contact compression spring of medium-pressure vacuum circuit breaker - Google Patents
Assembling structure for contact compression spring of medium-pressure vacuum circuit breaker Download PDFInfo
- Publication number
- CN201294197Y CN201294197Y CNU2008201497651U CN200820149765U CN201294197Y CN 201294197 Y CN201294197 Y CN 201294197Y CN U2008201497651 U CNU2008201497651 U CN U2008201497651U CN 200820149765 U CN200820149765 U CN 200820149765U CN 201294197 Y CN201294197 Y CN 201294197Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- compression spring
- inserts
- disk spring
- vacuum circuit
- 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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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses an assembly structure for a contact compression spring of a medium-voltage vacuum circuit-breaker in a power distribution system, which comprises an insulating draw rod (3) whose one end is provided with an insert (6), a disk spring (2), a connecting rod (8) whose middle portion is provided with a flange, and a sealing nut (1) whose middle portion is provided with a round hole, wherein a guide groove (7) is arranged on the bottom of the insert (3), and the lower end of the connecting rod (8) is penetrated through the disk spring (2) into the guide groove (7) of the insert. When the connecting rod (8) moves up and down, the lower end of the connecting rod is still in the guide groove (7), thereby avoiding the friction and clamping stagnation phenomenon between the connecting rod (8) and the dish spring (2), and increasing the performances of the vacuum circuit-breaker.
Description
Technical field
The utility model relates to a kind of middle contacts for vacuum-break switches compression spring assembly structure of pressing in the electrical power distribution system.
Background technology
Along with the development of China's power industry and power technology, the kind of power transmission and distribution product is more and more, and the development of particularly middle pressure vacuum circuit-breaker is particularly rapid.Present middle pressure contacts for vacuum-break switches compression spring assembly structure is made up of encapsulation nut, disk spring, insulated tension pole, inserts and connecting rod, inserts is embedded in an end of insulated tension pole, as a whole with insulated tension pole, connecting rod is a rod shaped structure, there is circular flange at the middle part, connecting rod is in disk spring is contained in inserts, the circular flange of connecting rod is pressed in the top of disk spring, the lower end of connecting rod is at the middle part of disk spring, the encapsulation nut is encapsulated in connecting rod and disk spring in the inserts, as shown in Figure 1.This assembly structure since the lower end of connecting rod at the middle part of disk spring, when moving up and down, connecting rod for want of leads and easy off-centre, the lower end that causes connecting rod easily and disk spring cause friction, make the lower end of connecting rod and disk spring clamping stagnation together when serious, cause circuit breaker not close a floodgate.
The utility model content
The purpose of this utility model provide a kind of can be eccentric when connecting rod is moved up and down, press contacts for vacuum-break switches compression spring assembly structure in the motion smoothly.
Press the technical scheme of contacts for vacuum-break switches compression spring assembly structure to be in the utility model: to press contacts for vacuum-break switches compression spring assembly structure in a kind of, insulated tension pole, disk spring, the connecting rod of the flanged dish in middle part and the encapsulation nut of middle band circular hole by an end band inserts are formed, the bottom that is characterised in that inserts has gathering sill, disk spring is passed in the connecting rod lower end, pierces in the inserts gathering sill.
During assembling, earlier disk spring is contained in the inserts of insulated tension pole, puts into connecting rod again, the ring flange of connecting rod is pressed on the disk spring, screws with the encapsulation nut afterwards.
The middle pressure contacts for vacuum-break switches compression spring assembly structure that the utility model provides, after screwing the encapsulation nut, the lower end of connecting rod extend into the bottom of disk spring, and just enter in the gathering sill of insulated tension pole inserts, when connecting rod moves up and down, the lower end all the time in gathering sill, avoided and disk spring between friction and catching phenomenon, improved the performance of vacuum circuit-breaker.
Description of drawings
Fig. 1 analyses and observe for the figure that presses contacts for vacuum-break switches compression spring assembly structure in existing.
Fig. 2 analyses and observe for the figure that presses an embodiment of contacts for vacuum-break switches compression spring assembly structure in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, encapsulation nut 2, disk spring 3, insulated tension pole 4, inserts 5, connecting rod 6, inserts 7, gathering sill 8, connecting rod
As shown in Figure 2, press contacts for vacuum-break switches compression spring assembly structure to form in the utility model by encapsulation nut 1, disk spring 2, insulated tension pole 3, the inserts 6 that is embedded in insulated tension pole 3 upper ends and connecting rod 8, inserts 6 upper port are threaded, the gathering sill 7 of guide function has been arranged at the bottom, lower end, connecting rod 8 lower ends are longer than the lower end of prior art connecting rod 5, connecting rod 8 lower ends are pierced in inserts 6 gathering sills 7, encapsulation nut 1 is tightened in the screw thread of inserts 6 upper port by the upper end that the through hole at center passes connecting rod 8, be pressed on connecting rod 8 circular flanges above.
Press contacts for vacuum-break switches compression spring assembly structure in the utility model, connecting rod 8 is when moving up and down, and friction and interference with disk spring 2 have been avoided all the time in the gathering sill 7 of inserts 6 bottoms in its lower end, have improved the performance of vacuum circuit-breaker.
Claims (1)
1, a kind of middle contacts for vacuum-break switches compression spring assembly structure of pressing, insulated tension pole (3), disk spring (2), the connecting rod (8) of the flanged dish in middle part and the encapsulation nut (1) of middle band circular hole by an end band inserts (6) are formed, it is characterized in that: the bottom of inserts (3) has gathering sill (7), disk spring (2) is passed in connecting rod (8) lower end, pierces in the inserts gathering sill (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201497651U CN201294197Y (en) | 2008-10-17 | 2008-10-17 | Assembling structure for contact compression spring of medium-pressure vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201497651U CN201294197Y (en) | 2008-10-17 | 2008-10-17 | Assembling structure for contact compression spring of medium-pressure vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201294197Y true CN201294197Y (en) | 2009-08-19 |
Family
ID=41007679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201497651U Expired - Fee Related CN201294197Y (en) | 2008-10-17 | 2008-10-17 | Assembling structure for contact compression spring of medium-pressure vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201294197Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826413B (en) * | 2010-05-14 | 2012-12-12 | 无锡市凯驰电气有限公司 | High-pressure vacuum contactor |
| CN103871790A (en) * | 2014-03-28 | 2014-06-18 | 郑敏 | Insulating pull rod of high-voltage circuit breaker |
-
2008
- 2008-10-17 CN CNU2008201497651U patent/CN201294197Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826413B (en) * | 2010-05-14 | 2012-12-12 | 无锡市凯驰电气有限公司 | High-pressure vacuum contactor |
| CN103871790A (en) * | 2014-03-28 | 2014-06-18 | 郑敏 | Insulating pull rod of high-voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20131017 |