CN202871734U - Novel dropping type fuse - Google Patents
Novel dropping type fuse Download PDFInfo
- Publication number
- CN202871734U CN202871734U CN 201220204105 CN201220204105U CN202871734U CN 202871734 U CN202871734 U CN 202871734U CN 201220204105 CN201220204105 CN 201220204105 CN 201220204105 U CN201220204105 U CN 201220204105U CN 202871734 U CN202871734 U CN 202871734U
- Authority
- CN
- China
- Prior art keywords
- contact
- fuse
- plate
- location
- spring
- 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
Images
Landscapes
- Fuses (AREA)
Abstract
The utility model provides a novel dropping type fuse. The fuse is characterized in that the rear end of a carrier fuse part is connected with a rear contact part through a shaft; the rear contact part contacts and a rear frame and is positioned with the rear frame through the shaft; the front end is connected with a front contact through a screw thread; the front contact contacts a front frame; front and rear wiring seats are respectively connected with front and rear frames through bolts; front and rear frames are connected with both ends of an insulating part through bolts; a supporting part is arranged in the middle of the insulating part; the insulating part comprises an insulating pillar and resin positioning blocks; the resin positioning blocks are arranged at both ends of the insulating pillar; the front wiring seat comprises a wiring positioning plate, upper and lower wire pressing plates and a cable pressing bolt; upper and lower wire pressing plates are stacked up and down and are positioned on the wiring positioning plate through the cable pressing bolt; and a cable is placed between upper and lower wire pressing plates and is clamped by the cable pressing bolt.
Description
Technical field
The utility model relates to a kind of fuse, particularly a kind of Novel drop type fuse.
Background technology
Fuse switch is the most frequently used a kind of protective switch of the short circuit of 10KV distribution line branch line and distribution transformer, it have economy, easy to operate, adapt to the characteristics such as outdoor environment is strong.But market is that existing Related product has many defectives now: the fusion tube size of outfit does not reach the rules requirement, fusion tube is long with the contact dieback, fusion tube can not fall rapidly after causing fuse failure, in time with arc cutting, extinguish, cause fusion tube to burn or explode; The fusion tube size is short, the difficulty of closing a floodgate, and contact is bad, produces spark.Some fusion tube size and fuse fixed contact divide the size coupling improper, very easily loosening, run into External Force Acting, vibrations or strong wind weather in case be in operation, just can fall voluntarily, and electricity sales amount in not only reducing, and be difficult to guarantee the power supply reliability index.Most supporting brackets that are connected with the transformer cross-arm are securing with insulation column, can't rotate, because the accuracy of manufacture is not high, supporting bracket has the deflection of certain angle, can't accurately be installed on the transformer cross-arm, and installment work is caused great inconvenience.Existing product is connected with cable and only depends on tightening of bolt, and is very easily loosening.Because fuse switch works in outdoor environment, under the environment of rainy day, rainwater can contact with the contact, gets rusty, and causes loose contact.Fusion tube rear end and terminal block contact area are little or have spacing, cause loose contact, produce spark.
Summary of the invention
According to problem set forth above, the utility model is in order to overcome at present existing fuse switch, a kind of Novel drop type fuse is provided, by insulation column (1), resin positioning plug (2), connect support plate (3), wiring location-plate (4), hold-down bolt (5), upper and lower tension disc (6), bolt (7), location rain cover (8), volute spring (9), guide blot (10), front contact (11), front contact latch plate (12),
U-shaped location (13), operation ring (14), fusion tube (15), rear keeper (16), fuse ejects locating rack (17), rear positioning supporting frame (18), rear contact (19), fuse hold-down bolt (20), back contact spring plate (21), rear terminal block (22), clamping plate (23), supporting bracket (24), axle (25), spring (26) forms, it is characterized in that the rear end of carrying molten parts is connected by axle with rear contact component, rear contact component contacts with after-frame, and locates by axle with after-frame; Front end and front contact are threaded connection, and front contact contacts with side arm; Forward and backward junction block connects with forward and backward by bolt respectively; Forward and backward by the two ends of Bolt Connection at insulated part; Supporting part is installed in the centre position of insulated part.Insulating element comprises insulation column and resin positioning plug, the resin positioning plug is installed in the two ends of insulation column, front junction block comprises the wiring location-plate, upper and lower tension disc and cable hold-down bolt, upper and lower tension disc stacks up and down by the cable hold-down bolt and is positioned on the wiring location-plate, cable is positioned between the upper and lower tension disc, is clamped by the cable hold-down bolt.Connecting support plate is installed in the groove of resin positioning plug, by bolted; The wiring location-plate, the front contact latch plate, the location rain cover is connecting on the support plate by bolted, bolt is installed on the terminal block of location, guide blot is connected with the location rain cover, volute spring passes guide blot, two contacts with location rain cover and front contact latch plate respectively, operation ring and rear keeper are installed in respectively the two ends of fusion tube, on, lower tension disc stacks up and down by the cable hold-down bolt and is positioned on the rear terminal block, cable is positioned in, between the lower tension disc, clamped by the cable hold-down bolt, connecting support plate is installed in the groove of resin positioning plug, by bolted; Rear terminal block, rear positioning supporting frame, back contact spring plate are connecting on the support plate by bolted.Rear contact links to each other with rear keeper with axle, there is symmetrical outstanding axle rear contact both sides, and have an axis hole, outstanding axle is seted out with the axial trough of rear positioning supporting frame and is connected, rear contact contacts with back contact spring plate large tracts of land, axle passes spring, fuse ejects locating rack and axis hole, and with Spring Card in the spring groove of rear contact, spring ejects locating rack with rear contact and fuse and contacts, when normal operation, fuse one end is connected with front contact, and an end is pressed on the rear contact with the fuse hold-down bolt, under the effect of fuse, fuse ejects locating rack and withstands the rear keeper that carries in the molten parts, guarantees that it can not fall, when fuse failure, fuse ejects locating rack keeper after unclamping under the effect of spring, and whole year molten parts are in time disconnected.Described supporting bracket is welded on one of them clamping plate, with another clamping plate with four bolted, be installed in the middle part of insulation column.All parts except insulating element, all adopt stainless steel.
The beneficial effects of the utility model are: after-frame of the present utility model can make contacting of product better with rear structure of contact terminal, and opening speed is faster, installs more convenient.The front contact latch plate utilizes volute spring thrust, makes it keep good contacting with front contact, and described back contact spring plate area is large, flexible, can make it keep good contacting with rear contact; Fuse ejects locating rack keeper after withstanding under the pressure-acting of spring, guaranteeing to carry molten parts can not come off in the situation that fuse does not disconnect, but when fuse disconnects, under the effect of spring, fuse ejects locating rack and unclamps rapidly rear locating rack, year molten parts are come off rapidly, to guarantee the safety of circuit under action of gravitation.Support component unclamps four bolts when mounted, and supporting bracket is installed on the transformer cross-arm, adjust angle after, again with bolted, avoided because accuracy of manufacture problem, that causes can't normal mounting.Forward and backward junction block under the effect of upper and lower tension disc and hold-down bolt, makes it keep good contacting with cable, has avoided because the cable loose contact that improper factor causes.The type structure of front contact can make this type fuse switch that many disjunctions fuse is installed, and has strengthened its adaptability and functional.The location rain cover can effectively avoid rainwater to contact with fuse, and what cause gets rusty, loose contact.Bolt can effectively prevent when closed fuse, contact surpass should the position, when surpassing should the position be arranged the time, may cause loose contact.Adopt stainless steel, strengthen its outdoor corrosion resistance, make its service behaviour more reliable.Positioning plug is resin material, but the insulation property of reinforced insulation parts.The U-shaped location has guide effect, and when closed fuse, but contact is more accurate.
Description of drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is partial structurtes schematic diagram of the present utility model
Embodiment:
After the utility model supporting bracket and transformer cross-arm connect as shown in Figure 1 and Figure 2, adjust the position of product, the fastening bolt on the clamping plate 23 is tightened, make product orientation.Cable is accessed between the upper and lower tension disc 6 of forward and backward junction block, and compress cable with hold-down bolt 5, effectively avoid the loose contact between cable and the product.Fuse is installed, fuse is passed fusion tube 15, and front contact 11 and operation ring 14 are tightened, a fixing end of fuse, the other end is pushed down fuse eject locating rack 17, fuse ejects locating rack 17 and withstands rear keeper 16, and with fuse hold-down bolt 20 fuse and rear contact 19 is fixed.Under the booster action of bolt 7 and U-shaped location 13, the closed fuse of success is after the closure, rear contact 19 contacts with back contact spring plate 21 large tracts of land, front contact 11 and front contact latch plate 12 close contact under the effect of volute spring 9, contact is good, dependable performance.Behind fuse failure, the fuse ejection locating rack 17 of being pushed down by fuse flicks rapidly under the effect of spring 26, thereby unclamps rear keeper 16, and year molten parts are come off rapidly under action of gravitation.Location rain cover 8 can cover front contact 11, can avoid rainwater to contact with fuse when the rainy day.
Claims (4)
1. Novel drop type fuse, by insulation column (1), resin positioning plug (2), connect support plate (3), wiring location-plate (4), hold-down bolt (5), on, lower tension disc (6), bolt (7), location rain cover (8), volute spring (9), guide blot (10), front contact (11), front contact latch plate (12), U-shaped location (13), operation ring (14), fusion tube (15), rear keeper (16), fuse ejects locating rack (17), rear positioning supporting frame (18), rear contact (19), fuse hold-down bolt (20), back contact spring plate (21), rear terminal block (22), clamping plate (23), supporting bracket (24), axle (25), spring (26) forms, it is characterized in that the rear end of carrying molten parts is connected by axle with rear contact component, rear contact component contacts with after-frame, and locate by axle with after-frame, front end and front contact are threaded connection, front contact contacts with side arm, before, rear junction block respectively by bolt with before, after-frame connects, and is front, after-frame is by the two ends of Bolt Connection at insulated part; Supporting part is installed in the centre position of insulated part.
2. described Novel drop type fuse according to claim 1, it is characterized in that insulating element comprises insulation column and resin positioning plug, the resin positioning plug is installed in the two ends of insulation column, front junction block comprises the wiring location-plate, upper and lower tension disc and cable hold-down bolt, upper and lower tension disc stacks up and down by the cable hold-down bolt and is positioned on the wiring location-plate, and cable is positioned between the upper and lower tension disc, is clamped by the cable hold-down bolt.
3. described Novel drop type fuse according to claim 1, it is characterized in that connecting in the groove that support plate is installed in the resin positioning plug, by bolted, the wiring location-plate, the front contact latch plate, the location rain cover is connecting on the support plate by bolted, bolt is installed on the terminal block of location, guide blot is connected with the location rain cover, volute spring passes guide blot, two contacts with location rain cover and front contact latch plate respectively, operation ring and rear keeper are installed in respectively the two ends of fusion tube, on, lower tension disc stacks up and down by the cable hold-down bolt and is positioned on the rear terminal block, cable is positioned in, between the lower tension disc, clamped by the cable hold-down bolt, connecting support plate is installed in the groove of resin positioning plug, by bolted, rear terminal block, rear positioning supporting frame, the back contact spring plate is connecting on the support plate by bolted.
4. described Novel drop type fuse according to claim 1, it is characterized in that rear contact links to each other with rear keeper with axle, there is symmetrical outstanding axle rear contact both sides, and have an axis hole, outstanding axle is seted out with the axial trough of rear positioning supporting frame and is connected, rear contact contacts with back contact spring plate large tracts of land, axle passes spring, fuse ejects locating rack and axis hole, and with Spring Card in the spring groove of rear contact, spring ejects locating rack with rear contact and fuse and contacts, all parts except insulating element, all adopt stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204105 CN202871734U (en) | 2012-05-09 | 2012-05-09 | Novel dropping type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204105 CN202871734U (en) | 2012-05-09 | 2012-05-09 | Novel dropping type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871734U true CN202871734U (en) | 2013-04-10 |
Family
ID=48038428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220204105 Expired - Fee Related CN202871734U (en) | 2012-05-09 | 2012-05-09 | Novel dropping type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078265A (en) * | 2014-07-02 | 2014-10-01 | 辽宁宇光输变电有限公司 | Electrical disconnecting link switch support insulator and electrical disconnecting link switch |
-
2012
- 2012-05-09 CN CN 201220204105 patent/CN202871734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078265A (en) * | 2014-07-02 | 2014-10-01 | 辽宁宇光输变电有限公司 | Electrical disconnecting link switch support insulator and electrical disconnecting link switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201608520U (en) | Surge protector for power supply | |
| CN202871734U (en) | Novel dropping type fuse | |
| CN201804831U (en) | Novel cutout fuse | |
| CN203631220U (en) | Lightning arrester with disconnector | |
| CN201845734U (en) | Novel dropping type fuse | |
| CN201359894Y (en) | Column-type lightning arrester device provided with electricity testing earthed pole and piercing connector | |
| CN205890591U (en) | Integrated form fills electric pile output unit | |
| CN203434115U (en) | Wind power station special-purpose drop-out fuse | |
| CN205039127U (en) | Take copper aluminium transition terminal connector's high -tension drop type fuse | |
| CN107727893B (en) | Easy-to-replace lightning arrester leakage ammeter suite | |
| CN207165427U (en) | A kind of fault-signal booster for being exclusively used in high pressure self healing capacitor | |
| CN200990507Y (en) | Fusing combined surge protector | |
| CN203562251U (en) | Insulator with safety cover, grounding wire clamp and lightning arrester | |
| CN220774683U (en) | Automatic power supply assembly cutting device convenient to install | |
| CN201868298U (en) | High-voltage grounding and isolating switch | |
| CN205811413U (en) | Anti-ice column shape anti-bird baffle plate | |
| CN220829923U (en) | Full-protection type high-voltage drop-out fuse | |
| CN210110684U (en) | Auxiliary contact structure for universal circuit breaker | |
| CN210778472U (en) | Storage battery positive electrode fuse box with universal bolt type structure | |
| CN219476549U (en) | Dual-power automatic transfer switch with high installation efficiency | |
| CN107134560A (en) | Thermal protection connecting structure and method for lithium ion power battery | |
| CN221304550U (en) | Anti-static circuit breaking protector | |
| CN213184985U (en) | Anti-misoperation switching locking baffle | |
| CN216209362U (en) | Lightning protection switch and system in high-voltage test hall | |
| CN203895336U (en) | Single insulator ice melting and grounding knife switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Jiuqian Electric Porcelain & Electric Appliance Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20140509 |
|
| EXPY | Termination of patent right or utility model |