CN203521277U - Contact connection structure for three-station isolation grounding switch - Google Patents
Contact connection structure for three-station isolation grounding switch Download PDFInfo
- Publication number
- CN203521277U CN203521277U CN201320670761.9U CN201320670761U CN203521277U CN 203521277 U CN203521277 U CN 203521277U CN 201320670761 U CN201320670761 U CN 201320670761U CN 203521277 U CN203521277 U CN 203521277U
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- China
- Prior art keywords
- contact
- gear
- station isolation
- isolation grounding
- grounding switch
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Abstract
The utility model discloses a contact connection structure for a three-station isolation grounding switch. The contact connection structure comprises a contact seat. The contact seat is internally provided with a moving contact and a gear; the moving contact is provided with a tooth bar cooperating with the gear; the two sides of the contact seat are respectively provided with flanges; and the gear is disposed between the flanges at the two sides. According to the utility model, when the gear rotates, the tooth bar drives the moving contact to perform direct-acting motion so as to realize three working states, i.e., switching-off, switching-on and grounding, of the three-station isolation grounding switch; the flanges at the two sides and steel balls limit the left and right shaking of the gear during the motion process of the three-station isolation grounding switch, at the same time when the gear rotates, the friction between the gear and the flanges is rolling friction rather than surface-to-surface attached sliding friction, and the transmission efficiency is improved; and the situations such as aluminum scraps and the like generated during the motion process of the three-station isolation grounding switch are effectively prevented, and the size of an overall contact structure is small.
Description
Technical field
The utility model belongs to high-voltage switch gear technical field, is specifically related to a kind of contact connecting structure for three station isolation grounding switchs.
Background technology
At present, transmission between the moving contact structure that three station isolation grounding switchs are generally used and rotating shaft and moving contact is the transmission of linear pattern rack-and-pinion and two kinds of modes of oscillating-type direct-drive, linear pattern rack-and-pinion transmission wherein adopts gear to rotarily drive to be contained in moving contact upper rack carries out " separating brake-combined floodgate-ground connection " three kinds of operating states that rectilinear motion is realized three station isolation grounding switchs, general structure does not carry out spacing to gear left and right directions in (as shown in Figure 1), although increased the brass sheet of wear-resisting wiping in gear both sides, but three station isolation grounding switchs still can rub and produce aluminium bits in switch operating state procedure, this is fatal to high voltage switchgear, the direct drive isolation earthing switch of oscillating-type adopts moving contact around insulation rotating shaft rotary oscillation, to realize three kinds of operating states of three station isolation grounding switchs, this structure because of its transmission simple, little and the isolation grounding static contact of installing space can be various angles arrange and be subject to designer's favor, but because isolation ground connection dynamic/static contact docks plug by rotation, matching requirements to three station isolation grounding switchs are higher, owing to having adopted blade plug-in type contact, thereby in use can make contact shape produce corner angle and can cause that Electric Field Distribution is uneven, affect the insulation property of three station isolation grounding switchs.
Some problems that exist for above-mentioned two kinds of kinds of drive, publication number is that the Chinese patent of CN203070998U discloses a kind of ball leading screw driving three station isolation grounding switchs, this construction of switch adopts ball leading screw driving to realize three kinds of operating states of three station isolation grounding switchs, transmission is directly simple, take up room little, but whole drive mechanism is complicated, very high to the centering requirement of dynamic/static contact, also increased Financial cost simultaneously.
Summary of the invention
For the existing above-mentioned technical problem of prior art, the utility model provides a kind of contact connecting structure for three station isolation grounding switchs, can effectively prevent that three station isolation grounding switch course of action from producing the situations such as aluminium bits, and overall volume is little.
A contact connecting structure for three station isolation grounding switchs, comprises contact base; Moving contact and gear are installed in described contact base, the tooth bar coordinating with gear is installed on described moving contact; Described contact base both sides are separately installed with ring flange, and described gear is located between the ring flange of both sides.
Described moving contact is realized and being electrically connected to contact base by spring contact.
Preferably, between described moving contact and contact base, by guide ring, realize guide-localization, can guarantee the moving contact direction of motion and action stability.
Described tooth bar is installed on moving contact by elastic cylindrical pin.
Between described gear and both sides ring flange, be inlaid with some steel balls.
Preferably, the steel ball between described gear and either side ring flange is isolated by dividing plate, can prevent the mutual touching between steel ball.
The utility model passes through rack drives moving contact while utilizing gear to rotate directly moving, thereby realizes " separating brake-combined floodgate-ground connection " three kinds of operating states of three station isolation grounding switchs; By both sides ring flange and steel ball, limited the double swerve of three station isolation grounding switch course of action middle gears, made between itself and ring flange of gear when rotation as rolling friction but not the sliding friction of face face laminating has improved transmission efficiency simultaneously; Effectively prevented that three station isolation grounding switch course of action from producing the situations such as aluminium bits, and whole structure of contact terminal volume is little.
Accompanying drawing explanation
Fig. 1 is the contact connecting structure schematic diagram of existing three station isolation grounding switchs.
Fig. 2 is the schematic diagram of the utility model contact connecting structure.
Fig. 3 is that Fig. 2 is along the profile of AA direction.
Embodiment
In order more specifically to describe the utility model, below in conjunction with the drawings and the specific embodiments, the technical solution of the utility model is elaborated.
As shown in Fig. 2～3, a kind of contact connecting structure for three station isolation grounding switchs, comprises contact base 1, moving contact 3, gear 10, tooth bar 6, ring flange 7, steel ball 8, dividing plate 9, guide ring 2, elastic cylindrical pin 4, spring contact 5.
Gear 10 is equipped with in contact base 1 inside, and ring flange 7 is equipped with in contact base 1 left and right sides, is inlaid with some steel balls 8 in the gap between gear 10 and ring flange 7, and for preventing being in contact with one another between steel ball 8, spy separates two dividing plates 9 of steel ball 8 use.
Moving contact 3 is housed in contact base 1, by some spring contacts 5, realizes electrical connection between the two, and utilize guide ring 2 to guarantee moving contact 3 directions of motion and action stability.Tooth bar 6 is housed in the groove of moving contact 3, tooth bar 6 is fixed on moving contact 3 by elastic cylindrical pin 4, intermeshing between gear 10 and tooth bar 6, while utilizing gear 10 to rotate, by tooth bar 6, drive moving contact 3 directly moving, thereby realize " separating brake-combined floodgate-ground connection " three kinds of operating states of three station isolation grounding switchs.
When present embodiment utilizes gear to rotate, pass through rack drives moving contact directly moving, thereby realize " separating brake-combined floodgate-ground connection " three kinds of operating states of three station isolation grounding switchs; By both sides ring flange and steel ball, limited the double swerve of three station isolation grounding switch course of action middle gears, made between itself and ring flange of gear when rotation as rolling friction but not the sliding friction of face face laminating has improved transmission efficiency simultaneously; Effectively prevented that three station isolation grounding switch course of action from producing the situations such as aluminium bits, and whole structure of contact terminal volume is little.
Claims (6)
1. for a contact connecting structure for three station isolation grounding switchs, comprise contact base; It is characterized in that: moving contact and gear are installed in described contact base, the tooth bar coordinating with gear is installed on described moving contact; Described contact base both sides are separately installed with ring flange, and described gear is located between the ring flange of both sides.
2. contact connecting structure according to claim 1, is characterized in that: described moving contact is realized and being electrically connected to contact base by spring contact.
3. contact connecting structure according to claim 1, is characterized in that: between described moving contact and contact base, by guide ring, realize guide-localization.
4. contact connecting structure according to claim 1, is characterized in that: described tooth bar is installed on moving contact by elastic cylindrical pin.
5. contact connecting structure according to claim 1, is characterized in that: between described gear and both sides ring flange, be inlaid with some steel balls.
6. contact connecting structure according to claim 5, is characterized in that: the steel ball between described gear and either side ring flange is isolated by dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670761.9U CN203521277U (en) | 2013-10-28 | 2013-10-28 | Contact connection structure for three-station isolation grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670761.9U CN203521277U (en) | 2013-10-28 | 2013-10-28 | Contact connection structure for three-station isolation grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521277U true CN203521277U (en) | 2014-04-02 |
Family
ID=50380167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320670761.9U Expired - Fee Related CN203521277U (en) | 2013-10-28 | 2013-10-28 | Contact connection structure for three-station isolation grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257813A (en) * | 2017-12-30 | 2018-07-06 | 山东泰开高压开关有限公司 | A kind of transmission device of self earthing switch divide-shut brake |
| CN109243905A (en) * | 2018-08-28 | 2019-01-18 | 广东科技学院 | A kind of isolation switch device |
-
2013
- 2013-10-28 CN CN201320670761.9U patent/CN203521277U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257813A (en) * | 2017-12-30 | 2018-07-06 | 山东泰开高压开关有限公司 | A kind of transmission device of self earthing switch divide-shut brake |
| CN108257813B (en) * | 2017-12-30 | 2024-04-19 | 山东泰开高压开关有限公司 | Transmission device for switching on and off of independent grounding switch |
| CN109243905A (en) * | 2018-08-28 | 2019-01-18 | 广东科技学院 | A kind of isolation switch device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20171028 |