CN203882944U - Drop-out fuse - Google Patents
Drop-out fuse Download PDFInfo
- Publication number
- CN203882944U CN203882944U CN201420304284.9U CN201420304284U CN203882944U CN 203882944 U CN203882944 U CN 203882944U CN 201420304284 U CN201420304284 U CN 201420304284U CN 203882944 U CN203882944 U CN 203882944U
- Authority
- CN
- China
- Prior art keywords
- spring
- fuse
- hole
- fire extinguishing
- plate
- 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
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000012212 insulator Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a drop-out fuse. A key point of a technical scheme is to provide the drop-out fuse. One end, opposite to a fuse wire, of a spring pressing plateis provided with a fire extinguishing apparatus. The fire extinguishing apparatus includes a protruding block, a fire extinguishing hollow chamber, a flame retarding material, a through hole and an end cover. The protruding block is disposed on one end, opposite to the fuse wire, of a spring supporting plate. The fire extinguishing hollow chamber is arranged inside the protruding block. The flame retarding material is arranged in the fire extinguishing hollow chamber. The through hole is formed in one end, which is opposite to the spring supporting plate, of the protruding block. The through hole is communicated with the fire extinguishing hollow chamber. The end cover is disposed on the through hole. The through hole directly faces to the spring pressing plate. An opening apparatus is disposed at the end cover and is used for opening the end cover. An automatic fire extinguishing operation can be carried out effectively and a manual fire extinguishing operation is not necessary. The drop-out fuse is high in safety.
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 is the protection original paper in circuit; after short circuit; fuse will fuse automatically, thereby reaches the effect of cutting off circuit, and very general of the phenomenon that fuse catches fire; because fuse is generally all arranged on higher place; and people also dare not be close fire extinguishing, so most people can select to allow it naturally extinguish, but fuse is in the process of catching fire; the intensity of a fire may spread, thereby causes the loss that some are unnecessary.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide the fuse switch of a kind of energy self-extinguishing.
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, spring-support plate and spring bearer plate, 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 spring, compression spring is arranged between spring-support plate and spring bearer plate, the other end of the relative fuse of described spring bearer plate is provided with extinguishing device, described extinguishing device comprises projection, fire extinguishing cavity, fire retardant matter, through hole and end cap, described projection is arranged on spring-support plate back to one end of fuse, described fire extinguishing cavity is arranged on projection inside, described fire retardant matter is positioned at fire extinguishing cavity, described through hole is positioned at one end of the relative spring-support plate of projection, described through hole and fire extinguishing cavity communicate, described end cap is positioned on through hole, described through hole is over against spring bearer plate, described end caps is provided with for opening the device for opening of end cap.
The utility model is further set to: described device for opening comprises tension spring, the chute sliding for end cap, fixture block, draw-in groove and rope, described chute is positioned on projection and with through hole and communicates, one end of described end cap is positioned at chute, one end of described tension spring is connected with chute one end back to through hole, the other end of described tension spring is connected with end cap, described fixture block is positioned at a side of the relative spring bearer plate of end cap, what described draw-in groove was corresponding with fixture block is positioned on projection, one end of described rope is connected with fixture block, the other end of described rope is connected with spring-support plate, the axes intersect of described rope and through hole.
By adopting technique scheme, after cartridge fuse catches fire, the intensity of a fire can spread towards this cartridge fuse top, and spring bearer plate can be burnt, at this moment the intensity of a fire can continue to vertical spread, rope will be blown, because tension spring is before in extended state, and rope pulling fixture block cannot the direction towards chute pull end cap tension spring, and after rope blows, tension spring will pull end cap to slide, the fire retardant matter of at this moment putting out a fire in cavity will spill by through hole, and through hole is over against spring bearer plate, fire retardant matter will be turned spring bearer plate place, and then by cartridge fuse place, reached the object of fire extinguishing, and do not need people to go fire extinguishing, safe, can effectively prevent fire spreading.
The utility model is further set to: described extinguish material is dry powder.
By adopting technique scheme, can reach good fire extinguishing effect.
The utility model is further set to: described projection is arc surface back to one end of spring bearer plate.
By adopting technique scheme, prevent rainwater accumulation, play good waterproof effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fuse switch embodiment of the utility model;
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Reference numeral: 1, top electrode connecting plate; 2, cartridge fuse; 3, fuse; 4, extinguishing device; 41, projection; 42, dry powder; 43, through hole; 44, end cap; 45, fire extinguishing cavity; 5, device for opening; 51, tension spring; 52, chute; 53, draw-in groove; 54, fixture block; 55, rope; 6, pressure releasing cap; 7, bottom electrode connecting plate; 8, lower moving contact; 9, post insulator; 10, arc surface; 11, spring bearer plate; 12, static contact; 14, spring-support plate.
Embodiment
Referring to figs. 1 through Fig. 2, this practical a kind of Novel drop type fuse embodiment is described further.
A kind of fuse switch, comprise post insulator 9, lower moving contact 8, cartridge fuse 2, be arranged on post insulator 9 two ends for top electrode connecting plate 1 and the bottom electrode connecting plate 7 of wiring, the static contact 12 being electrically connected to top electrode connecting plate 1, be arranged on the pressure releasing cap 6 that cartridge fuse 2 upper ends are electrically connected to static contact 12, spring-support plate 14 and spring bearer plate 11, be arranged on the fuse 3 in cartridge fuse 2, the pressure releasing cap 6 that described fuse 3 one end arrange by cartridge fuse 2 upper ends compresses, the other end on the other side is fixed on bottom electrode connecting plate 7 through the plate of sending out with spring, compression spring is arranged between spring-support plate 14 and spring bearer plate 11, described projection 41 is arc surface 10 back to one end of spring bearer plate 11, the other end of described spring bearer plate 11 relative fuses 3 is provided with extinguishing device 4, described extinguishing device 4 comprises projection 41, fire extinguishing cavity 45, dry powder 42, through hole 43 and end cap 44, described projection 41 is arranged on spring-support plate 14 back to one end of fuse 3, described fire extinguishing cavity 45 is arranged on projection 41 inside, described dry powder 42 is positioned at fire extinguishing cavity 45, described through hole 43 is positioned at one end of projection 41 relative spring-support plates 14, described through hole 43 and fire extinguishing cavity 45 communicate, described end cap 44 is positioned on through hole 43, described through hole 43 is over against spring bearer plate 11, described end cap 44 places are provided with for opening the device for opening 5 of end cap 44, described device for opening 5 comprises tension spring 51, the chute 52 sliding for end cap, fixture block 54, draw-in groove 53 and rope 55, described chute 52 is positioned on projection 41 and with through hole 43 and communicates, one end of described end cap is positioned at chute 52, one end of described tension spring 51 is connected with chute 52 one end back to through hole 43, the other end of described tension spring 51 is connected with end cap 44, described fixture block 54 is positioned at a side of end cap 44 relative spring bearer plates 11, what described draw-in groove 53 was corresponding with fixture block 54 is positioned on projection 41, one end of described rope 55 is connected with fixture block 54, the other end of described rope 55 is connected with spring-support plate 14, the axes intersect of described rope 55 and through hole 43.
After cartridge fuse 2 catches fire, the intensity of a fire can spread towards these cartridge fuse 2 tops, and spring bearer plate 11 can be burnt, at this moment the intensity of a fire can continue to vertical spread, rope 55 will be blown, because tension spring 51 is before in extended state, and rope 55 pulling fixture blocks 54 cannot the direction towards chute 52 pull end cap 44 tension spring 51, and after rope 55 blows, tension spring 51 will pull end cap 44 to slide, the dry powder 42 of at this moment putting out a fire in cavity 45 will be by through hole 43 out, and through hole 43 is over against spring bearer plate 11, dry powder 42 will be turned spring bearer plate 11 places, and then by cartridge fuse 2 places, reached the object of fire extinguishing, and do not need people to go fire extinguishing, safe, can effectively prevent fire spreading, and arc surface 10 can effectively prevent rainwater accumulation, reach moistureproof effect.
Claims (4)
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, spring-support plate and spring bearer plate, 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 spring, compression spring is arranged between spring-support plate and spring bearer plate, it is characterized in that: the other end of the relative fuse of described spring bearer plate is provided with extinguishing device, described extinguishing device comprises projection, fire extinguishing cavity, fire retardant matter, through hole and end cap, described projection is arranged on spring-support plate back to one end of fuse, described fire extinguishing cavity is arranged on projection inside, described fire retardant matter is positioned at fire extinguishing cavity, described through hole is positioned at one end of the relative spring-support plate of projection, described through hole and fire extinguishing cavity communicate, described end cap is positioned on through hole, described through hole is over against spring bearer plate, described end caps is provided with for opening the device for opening of end cap.
2. a kind of fuse switch according to claim 1, it is characterized in that: described device for opening comprises tension spring, the chute sliding for end cap, fixture block, draw-in groove and rope, described chute is positioned on projection and with through hole and communicates, one end of described end cap is positioned at chute, one end of described tension spring is connected with chute one end back to through hole, the other end of described tension spring is connected with end cap, described fixture block is positioned at a side of the relative tension spring pressing plate of end cap, what described draw-in groove was corresponding with fixture block is positioned on projection, one end of described rope is connected with fixture block, the other end of described rope is connected with spring-support plate, the axes intersect of described rope and through hole.
3. a kind of fuse switch according to claim 1 and 2, is characterized in that: described extinguish material is dry powder.
4. a kind of fuse switch according to claim 3, is characterized in that: described projection is arc surface back to one end of spring bearer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304284.9U CN203882944U (en) | 2014-06-09 | 2014-06-09 | Drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420304284.9U CN203882944U (en) | 2014-06-09 | 2014-06-09 | Drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882944U true CN203882944U (en) | 2014-10-15 |
Family
ID=51683418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420304284.9U Expired - Fee Related CN203882944U (en) | 2014-06-09 | 2014-06-09 | Drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652668A (en) * | 2019-08-21 | 2020-01-07 | 黄细香 | Fire-fighting equipment for asphalt production |
-
2014
- 2014-06-09 CN CN201420304284.9U patent/CN203882944U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110652668A (en) * | 2019-08-21 | 2020-01-07 | 黄细香 | Fire-fighting equipment for asphalt production |
| CN110652668B (en) * | 2019-08-21 | 2021-02-05 | 青岛国创新材料科技有限公司 | Fire-fighting equipment for asphalt production |
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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: 20141015 |