CN203910733U - Drop-out fuse - Google Patents
Drop-out fuse Download PDFInfo
- Publication number
- CN203910733U CN203910733U CN201420302176.8U CN201420302176U CN203910733U CN 203910733 U CN203910733 U CN 203910733U CN 201420302176 U CN201420302176 U CN 201420302176U CN 203910733 U CN203910733 U CN 203910733U
- Authority
- CN
- China
- Prior art keywords
- cover
- fuse
- sliding
- rain cover
- opening
- 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
Links
- 238000012856 packing Methods 0.000 claims description 11
- 239000012212 insulator Substances 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 6
- 230000003628 erosive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a drop-out fuse. Main points of the technical scheme are that a fixed plate is provided with a rainproof cover, one end of the rainproof cover is provided with a fixed opening, the side wall of the rainproof cover is hinged with the fixed plate through the fixed opening, a locking nut is arranged at the hinged part, the internal part of the rainproof cover is provided with a sliding telescopic cover, the sliding telescopic cover is arc-shaped, the outer surface of the sliding telescopic cover is matched with the inner surface of the rainproof cover, two side surfaces, which are opposite to the hinged part, of the sliding telescopic cover are provided with sliding blocks respectively, the inner wall of the rainproof cover is provided with a sliding slot provided for the sliding blocks to slide transversely, the other end, which is opposite to the fixed opening, of the rainproof cover is provided with a sliding opening, and the sliding telescopic cover stretches out of the sliding opening. The rainproof cover effectively ensures the drop-out fuse not be subjected to erosion of snow and rain.
Description
Technical field
The utility model relates to a kind of fuse, and more particularly, it relates to a kind of fuse switch.
Background technology
Fuse refers to when electric current surpasses setting, with the heat producing own, makes melt fusing, a kind of electrical equipment of open circuit.Fuse is to surpass setting after a period of time according to electric current, and the heat producing with himself makes melt fusing, thereby circuit is disconnected; Fuse is widely used in high and low voltage electric distribution system and control system and power consumption equipment, as the protector of short circuit and overcurrent, is to apply one of the most general protection device.Fuse switch is when outdoor application, when running into sleet sky, sleet is to fuse switch fuse, contact spring impacts, on fuse, be all provided with the rain cover that cross section is Jiong shape, but it is all bolted to connection, at installation rain cover, make just to change fuse like this and need to pull down rain cover, and in order to prevent that cartridge fuse is stuck on rain cover while falling after fuse disruption, the other end of the relative installation place of rain cover is provided with anti-sticking opening, but while raining often with certain wind-force, rainwater is very easy to by anti-sticking opening, be blown to fuse switch inside by wind, cause original paper to damage.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of rainproof effect good fuse switch.
For achieving the above object, the utility model provides following technical scheme: a kind of fuse switch, comprise post insulator, lower moving contact, cartridge fuse, be arranged on post insulator two ends for top electrode connecting plate and the bottom electrode connecting plate of wiring, the static contact being electrically connected to top electrode connecting plate, be arranged on the pressure releasing cap that cartridge fuse upper end is electrically connected to static contact, be arranged on the fuse in cartridge fuse, the pressure releasing cap that described fuse one end arranges by cartridge fuse upper end compresses, the other end on the other side is fixed on bottom electrode connecting plate through the plate of sending out with little spring, between described post insulator and top electrode connecting plate, be provided with fixed head, described fixed head is provided with rain cover, described rain cover one end is provided with permanent opening, described rain cover is side walls hinged on fixed head by permanent opening, described hinged place is provided with lock nut, described rain cover inside is provided with sliding extension cover, described sliding extension cover is arc, described sliding extension cover outer surface and rain cover inner surface are suitable, two sides, the relative hinged place of described sliding extension cover are provided with sliding shoe, described rain cover inwall is provided with the sliding tray laterally sliding for sliding shoe, the relative permanent opening other end of described rain cover is provided with slip opening, described sliding extension cover stretches out slip opening.
By adopting technique scheme, rain cover is enclosed within on fixed head, prevent that sleet from directly falling on the parts of wanting in fuse, prevent that fuse from breaking down, sliding extension cover is slided and skids off from rain cover inside in sliding tray by sliding shoe, the rainproof scope of rain cover is increased, and prevented that sleet from entering fuse inside by the effect of wind-force from the anti-sticking opening of rain cover, because sliding extension cover is arc, it is just not inconsistent with sliding extension cover when cartridge fuse falls, guaranteed that fuse normally falls, when needs are changed fuse, rain cover is lifted, make permanent opening frame on fixed head, sliding extension cover is pushed in rain cover, locking lock nut, prevent that rain cover from overturning in fuse process is installed, and in sliding extension cover retraction rain cover, while making fuse is installed, can not hindered, make to install fuse and need not pull down rain cover, provide a convenient.
The utility model is further set to: described permanent opening is provided with elastic packing sheet rubber, and described elastic packing sheet rubber relative sliding telescopic cover one end is fixedly connected with rain cover.
By adopting technique scheme, release lock nut after fuse installs, due to the elastic force effect of elastic packing sheet rubber makes rain cover can be automatically closed, make more convenient to operately, and elastic packing sheet rubber makes permanent opening sealing prevent that sleet from entering in fuse by permanent opening.
The utility model is further set to: described rain cover and sliding extension cover cross section are for arriving U-shaped.
By adopting technique scheme, sleet is fallen on rain cover by arcwall face landing, prevent that sleet is deposited on rain cover, prevent sleet make rain cover get rusty, aging, break, improved rainproof effect, improved useful life.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of fuse switch embodiment of the utility model;
Fig. 2 is the open mode figure of a kind of fuse switch embodiment of the utility model rain cover;
Fig. 3 is the structure chart of a kind of fuse switch embodiment of the utility model rain cover;
Fig. 4 is the structure chart of a kind of fuse switch embodiment of the utility model sliding extension cover;
Fig. 5 is the cutaway view of the rain cover of a kind of fuse switch embodiment of the utility model.
Reference numeral: 1, post insulator; 2, fixed head; 3, rain cover; 4, permanent opening; 5, lock nut; 6, elastic packing sheet rubber; 7, slip opening; 8, sliding tray; 9, sliding shoe.
Embodiment
Referring to figs. 1 through Fig. 5, a kind of fuse switch embodiment of the utility model is described further.
A kind of fuse switch, comprise post insulator 1, lower moving contact, cartridge fuse, be arranged on post insulator 1 two ends for top electrode connecting plate and the bottom electrode connecting plate of wiring, the static contact being electrically connected to top electrode connecting plate, be arranged on the pressure releasing cap that cartridge fuse upper end is electrically connected to static contact, be arranged on the fuse in cartridge fuse, the pressure releasing cap that described fuse one end arranges by cartridge fuse upper end compresses, the other end on the other side is fixed on bottom electrode connecting plate through the plate of sending out with little spring, between described post insulator 1 and top electrode connecting plate, be provided with fixed head 2, described fixed head 2 is provided with rain cover 3, described rain cover 3 one end are provided with permanent opening 4, described rain cover 3 is side walls hinged on fixed head 2 by permanent opening 4, described hinged place is provided with lock nut 5, described rain cover 3 inside are provided with sliding extension cover, described sliding extension cover is arc, described sliding extension cover outer surface and rain cover 3 inner surfaces are suitable, two sides, the relative hinged place of described sliding extension cover are provided with sliding shoe 9, described rain cover 3 inwalls are provided with the sliding tray 8 laterally sliding for sliding shoe 9, relative permanent opening 4 other ends of described rain cover 3 are provided with slip opening 7, described sliding extension cover stretches out slip opening 7, permanent opening 4 is provided with elastic packing sheet rubber 6, described elastic packing sheet rubber 6 relative sliding telescopic cover one end are fixedly connected with rain cover 3, described rain cover 3 is to U-shaped with sliding extension cover cross section.
Rain cover 3 is enclosed within on fixed head 2, prevent that sleet from directly falling on the parts of wanting in fuse, prevent that fuse from breaking down, sliding extension cover skids off from rain cover 3 inside in the interior slip of sliding tray 8 by sliding shoe 9, the rainproof scope of rain cover 3 is increased, and prevented that sleet from entering fuse inside by the effect of wind-force from the anti-sticking opening of rain cover 3, because sliding extension cover is arc, it is just not inconsistent with sliding extension cover when cartridge fuse falls, guaranteed that fuse normally falls, when needs are changed fuse, rain cover 3 is lifted, make 4 of permanent openings on fixed head 2, sliding extension cover is pushed in rain cover 3, locking lock nut 5, prevent that rain cover 3 from overturning in fuse process is installed, and in sliding extension cover retraction rain cover 3, while making fuse is installed, can not hindered, make to install fuse and need not pull down rain cover 3, provide a convenient, release lock nut 5 after fuse installs, due to the elastic force effect of elastic packing sheet rubber 6 makes rain cover 3 can be automatically closed, make more convenient to operate, and elastic packing sheet rubber 6 makes permanent opening 4 sealings prevent that sleet from entering in fuse by permanent opening 4.
When sleet is fallen on the surface on rain cover 3, sleet by arcwall face landing, prevents that sleet is deposited on rain cover 3, prevent sleet make rain cover 3 get rusty, aging, break, improved rainproof effect, improved useful life.
Claims (3)
1. a fuse switch, comprise post insulator, lower moving contact, cartridge fuse, be arranged on post insulator two ends for top electrode connecting plate and the bottom electrode connecting plate of wiring, the static contact being electrically connected to top electrode connecting plate, be arranged on the pressure releasing cap that cartridge fuse upper end is electrically connected to static contact, be arranged on the fuse in cartridge fuse, the pressure releasing cap that described fuse one end arranges by cartridge fuse upper end compresses, the other end on the other side is fixed on bottom electrode connecting plate through the plate of sending out with little spring, between described post insulator and top electrode connecting plate, be provided with fixed head, it is characterized in that: described fixed head is provided with rain cover, described rain cover one end is provided with permanent opening, described rain cover is side walls hinged on fixed head by permanent opening, described hinged place is provided with lock nut, described rain cover inside is provided with sliding extension cover, described sliding extension cover is arc, described sliding extension cover outer surface and rain cover inner surface are suitable, two sides, the relative hinged place of described sliding extension cover are provided with sliding shoe, described rain cover inwall is provided with the sliding tray laterally sliding for sliding shoe, the relative permanent opening other end of described rain cover is provided with slip opening, described sliding extension cover stretches out slip opening.
2. a kind of fuse switch according to claim 1, is characterized in that: described permanent opening is provided with elastic packing sheet rubber, and described elastic packing sheet rubber relative sliding telescopic cover one end is fixedly connected with rain cover.
3. a kind of fuse switch according to claim 2, is characterized in that: described rain cover and sliding extension cover cross section are for arriving U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302176.8U CN203910733U (en) | 2014-06-09 | 2014-06-09 | Drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302176.8U CN203910733U (en) | 2014-06-09 | 2014-06-09 | Drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910733U true CN203910733U (en) | 2014-10-29 |
Family
ID=51784988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302176.8U Expired - Fee Related CN203910733U (en) | 2014-06-09 | 2014-06-09 | Drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847602A (en) * | 2017-04-07 | 2017-06-13 | 国网江苏省电力公司检修分公司 | A kind of quick detachable easy-to-maintain isolation switch contact rain cover device |
| CN109742004A (en) * | 2019-02-19 | 2019-05-10 | 桐城市畅润电力工程有限公司 | A kind of power equipment falling type switch being easily installed |
-
2014
- 2014-06-09 CN CN201420302176.8U patent/CN203910733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847602A (en) * | 2017-04-07 | 2017-06-13 | 国网江苏省电力公司检修分公司 | A kind of quick detachable easy-to-maintain isolation switch contact rain cover device |
| CN109742004A (en) * | 2019-02-19 | 2019-05-10 | 桐城市畅润电力工程有限公司 | A kind of power equipment falling type switch being easily installed |
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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: 20141029 |