CN214254333U - Drop-out fuse device - Google Patents
Drop-out fuse device Download PDFInfo
- Publication number
- CN214254333U CN214254333U CN202120451880.XU CN202120451880U CN214254333U CN 214254333 U CN214254333 U CN 214254333U CN 202120451880 U CN202120451880 U CN 202120451880U CN 214254333 U CN214254333 U CN 214254333U
- Authority
- CN
- China
- Prior art keywords
- fixedly provided
- side wall
- connecting plate
- fusion tube
- fixedly connected
- 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
- 230000001681 protective effect Effects 0.000 claims abstract description 32
- 230000004927 fusion Effects 0.000 claims abstract description 30
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 229910001208 Crucible steel Inorganic materials 0.000 claims abstract description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 14
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Fuses (AREA)
Abstract
The utility model discloses a drop-out fuse device in the technical field of fuses, which comprises an insulator, wherein the top of the right side wall of the insulator is fixedly provided with a first connecting plate, the top left side of the first connecting plate is fixedly provided with a first connecting terminal, the bottom right side of the first connecting plate is fixedly provided with a cast steel pipe sleeve, the bottom of the right side wall of the insulator is fixedly provided with a second connecting plate, the bottom center of the second connecting plate is fixedly provided with a second connecting terminal, the right side wall of the second connecting plate is fixedly provided with a connecting lug, the top of the connecting lug is movably provided with a fusion tube, the left side wall of the inner cavity of the connecting lug is fixedly provided with a fixed seat, the bottom of the inner cavity of the connecting lug is fixedly provided with a reset spring, the top of the reset spring is fixedly provided with a supporting plate, and the top of the supporting plate is movably clamped with an insulating protective cover, the utility model provides the high protection nature of device reduces the condition that can not in time fall after the fusing.
Description
Technical Field
The utility model relates to a fuse technical field specifically is a drop out fusing device.
Background
The fuse is an electric appliance which fuses a melt by heat generated by the fuse when current exceeds a specified value and breaks a circuit, and the drop-out fuse is one of the fuses, is the most commonly used short-circuit protection switch for 10KV distribution line branch lines and distribution transformers, has the characteristics of economy, convenience in operation, strong adaptability to outdoor environment and the like, is widely applied to the protection and equipment switching and cutting operation of 10KV distribution lines and distribution transformers by one-time measurement, but the rotating area of a fuse tube of the existing fuses is rough, and the fuse tube is easy to break under the influence of external environments such as dust, sundries and the like, so that the circuit cannot be broken in time after a fuse wire is fused, and the condition of no drop-out is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drop out fuse device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a drop-out fuse device comprises an insulator, wherein a first connecting plate is fixedly assembled at the top of the right side wall of the insulator, a first wiring terminal is fixedly arranged at the left side of the top of the first connecting plate, a cast steel pipe sleeve is fixedly assembled at the right side of the bottom of the first connecting plate, a second connecting plate is fixedly assembled at the bottom of the right side wall of the insulator, a second wiring terminal is fixedly arranged at the center of the bottom of the second connecting plate, a connecting lug is fixedly arranged on the right side wall of the second connecting plate, a fusion tube is movably assembled at the top of the connecting lug, a pull ring is fixedly assembled at the top of the outer wall of the fusion tube, an external lead penetrates through the top of the inner cavity of the fusion tube and is fixedly connected with a thin spring, explosion-proof cavities are fixedly arranged at the top and the bottom of the inner cavity of the fusion tube, and a, the bottom of the thin spring is fixedly connected with an upper connecting lead, the upper connecting lead penetrates through the explosion-proof cavity and extends to the inner cavity of the vacuum chamber, the lower end of the upper connecting lead is fixedly connected with a fuse wire, the lower end of the fuse wire is fixedly connected with a lower connecting lead, the lower connecting lead penetrates through the vacuum chamber and the explosion-proof cavity and extends out from the bottom of the fuse tube, the left side wall of the inner cavity of the connecting lug is fixedly provided with a fixed seat, the bottom of the inner cavity of the connecting lug is fixedly provided with a reset spring, the top of the reset spring is fixedly provided with a supporting plate, the top of the supporting plate is movably clamped and matched with an insulating protective cover, the inner cavity of the insulating protective cover is fixedly assembled with the fuse tube, the fixed seat consists of two fixed plates, a rotary rod is movably assembled between the fixed plates, the outer wall of the rotary rod is fixedly sleeved with a sleeving ring, and the right side of the sleeving ring is fixedly connected with the insulating protective cover, the bearing is fixed on the left side of the front side wall of the fixing plate on the rear side, a wheel shaft is movably assembled on the front side wall of the bearing, a clockwork spring is fixedly connected to the front side wall of the wheel shaft, the front end of the clockwork spring is fixedly connected with the fixing plate on the front side, and the top of the wheel shaft is fixedly connected with the top of the sleeving ring through a belt.
Preferably, the insulator, the first connecting plate and the outer wall of the cast steel pipe sleeve are fixedly provided with an insulating protective sleeve.
Preferably, the left side wall and the bottom of the connecting lug are sealed, and the top and the right side wall of the connecting lug are provided with openings.
Preferably, the bottom and the right side wall of the insulating protective cover are arc-shaped, an arc groove is formed in the right side of the top of the supporting plate, and the arc groove is matched with the insulating protective cover.
Preferably, the fusion tube has a downward inclination angle of twenty-five degrees, and the thin spring is also provided with a lead wire.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has reasonable structural design, when short circuit occurs, the external lead leads in current, the explosion-proof cavity protection circuit avoids explosion, the upper connecting lead and the lower connecting lead in over-strong current, the over-strong current blows the fuse wire in the vacuum chamber, the thin spring is in a stretching state, the blown fuse wire and the upper connecting lead are retracted to ensure that the fuse tube can fall, the fuse tube also has an inclination angle to ensure that the self gravity of the fuse tube can lead the fuse tube to fall, the bottom of the fuse tube is fixedly assembled in the insulating protective cover, the insulating protective cover protects the fuse tube to prevent dust or foreign matters from entering the fuse tube, the connecting lug also has a protective effect on the rotating area at the bottom of the fuse tube to prevent the rotating part from being blocked by long-time accumulation of dust, the bottom and the right side wall of the insulating protective cover are arc-shaped, the arc groove is arranged at the right side of the top of the supporting plate, arc groove and insulating protective cover looks adaptation, insulating protective cover rotate at the fusion tube and fall the time, and the backup pad is protected and is supported the effect to it, utilizes multiunit tension to avoid the fusion tube to heavily fall simultaneously, can realize soft falling, the utility model provides the protection nature of high device reduces the condition that can not in time fall after the fusing.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the interior of the fusion tube of the present invention;
FIG. 3 is a schematic view of the inside of the engaging lug of the present invention;
fig. 4 is a schematic view of the internal structure of the fixing base of the present invention.
In the figure: 1. an insulator; 2. a first connecting plate; 3. a first connection terminal; 4. casting a steel pipe sleeve; 5. a second connecting plate; 6. a second connection terminal; 7. connecting lugs; 8. a fusion tube; 9. a pull ring; 10. connecting a lead wire externally; 11. an explosion-proof cavity; 12. a vacuum chamber; 13. a lead is connected; 14. fusing the wires; 15. connecting a lead wire downwards; 16. a fixed seat; 17. a return spring; 18. a support plate; 19. an insulating protective cover; 20. a fixing plate; 21. rotating the rod; 22. a sleeving connection ring; 23. a bearing; 24. a wheel axle; 25. a clockwork spring; 26. a belt; 27. a thin spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a drop-out fuse device comprises an insulator 1, a first connecting plate 2 is fixedly assembled at the top of the right side wall of the insulator 1, a first connecting terminal 3 is fixedly arranged at the left side of the top of the first connecting plate 2, a cast steel pipe sleeve 4 is fixedly assembled at the right side of the bottom of the first connecting plate 2, a second connecting plate 5 is fixedly assembled at the bottom of the right side wall of the insulator 1, a second connecting terminal 6 is fixedly arranged at the center of the bottom of the second connecting plate 5, a connecting lug 7 is fixedly arranged at the right side wall of the second connecting plate 5, a fusion tube 8 is movably assembled at the top of the connecting lug 7, a pull ring 9 is fixedly assembled at the top of the outer wall of the fusion tube 8, an external lead 10 penetrates through the top of the inner cavity of the fusion tube 8, a thin spring 27 is fixedly connected with the external lead 10, explosion-proof cavities 11 are fixedly arranged at the top and the bottom of the inner cavity of the fusion tube 8, a vacuum chamber 12 is fixedly arranged at the center of the inner cavity of the fusion tube 8, an upper lead 13 is fixedly connected with the bottom of the thin spring 27, the upper lead wire 13 penetrates through the explosion-proof cavity 11 and extends to the inner cavity of the vacuum chamber 12, the lower end of the upper lead wire 13 is fixedly connected with a fuse wire 14, the lower end of the fuse wire 14 is fixedly connected with a lower lead wire 15, the lower lead wire 15 penetrates through the vacuum chamber 12 and the explosion-proof cavity 11 and extends out from the bottom of the fusion tube 8, the left side wall of the inner cavity of the connecting lug 7 is fixedly provided with a fixed seat 16, the bottom of the inner cavity of the connecting lug 7 is fixedly provided with a return spring 17, the top of the return spring 17 is fixedly provided with a support plate 18, the top of the support plate 18 is movably clamped and matched with an insulating protective cover 19, the inner cavity of the insulating protective cover 19 is fixedly provided with the fusion tube 8, the fixed seat 16 consists of two fixed plates 20, a rotating rod 21 is movably assembled between the fixed plates 20, the outer wall of the rotating rod 21 is fixedly sleeved with a sleeving ring 22, the right side of the sleeving ring 22 is fixedly connected with the insulating protective cover 19, the left side of the front side wall of the fixed plate 20 at the rear side is fixed with a bearing 23, the front side wall of the bearing 23 is movably provided with a wheel shaft 24, the front side wall of the wheel shaft 24 is fixedly connected with a clockwork spring 25, the front end of the clockwork spring 25 is fixedly connected with the front side fixing plate 20, and the top of the wheel shaft 24 is fixedly connected with the top of the socket ring 22 through a belt 26.
The outer walls of the insulator 1, the first connecting plate 2 and the cast steel pipe sleeve 4 are fixedly provided with insulating protective sleeves, and the insulating protective sleeves play a certain role in protecting the device and avoid influencing the normal use of a fuse;
the left side wall and the bottom of the connecting lug 7 are sealed, the top and the right side wall of the connecting lug 7 are provided with openings, the connecting lug 7 has fixing and protecting functions, the rotating falling device of the inner cavity is protected, and the fusion falling of the fusion tube 8 is realized through the openings;
the bottom and the right side wall of the insulating protective cover 19 are arc-shaped, the right side of the top of the supporting plate 18 is provided with an arc groove, the arc groove is matched with the insulating protective cover 19, and when the melting tube 8 rotates and falls, the insulating protective cover 19 plays a role in protecting and supporting the melting tube, so that heavy falling is avoided, and soft falling can be realized;
the fuse tube 8 has a downward twenty-five degree inclination angle, and the thin spring 27 is also provided with a lead wire, so that when the fuse wire 14 is fused, the fuse tube 8 can fall rapidly by means of the self weight, and the lead wire on the thin spring 27 ensures the circulation of current.
The working principle is as follows: when a short circuit occurs, the external lead wire 10 guides current, the explosion-proof cavity 11 protects the circuit to avoid explosion, the upper connecting lead wire 13 and the lower connecting lead wire 15 guide over strong current, the over strong current blows the fuse wire 14 in the vacuum chamber 12, the thin spring 27 is in a stretching state, the blown fuse wire 14 and the upper connecting lead wire 13 retract to ensure that the fuse tube 8 falls, the fuse tube 8 also has an inclination angle to ensure that the self gravity of the fuse tube 8 falls, the bottom of the fuse tube 8 is fixedly assembled in the insulating protective cover 19, the insulating protective cover 19 protects the fuse tube 8 to prevent dust or foreign matters from entering the fuse tube 8, the connecting lug 7 also has a protective effect on a rotating area at the bottom of the fuse tube 8 to prevent the rotating part from being blocked by long-time accumulation of the arc-shaped dust, the bottom and the right side wall of the insulating protective cover 19 are circular arcs, the right side of the top of the supporting plate 18 is provided with a groove, arc groove and 19 looks adaptations of insulating protecting cover, insulating protecting cover 19 rotates when falling at fusion tube 8, and backup pad 18 protects and supports the effect to it, falls when fusion tube 8 in fixing base 16 simultaneously and drives insulating protecting cover 19 and rotate, thereby it relies on rotary rod 21 to drive cup ring 22 and rotates, pulling belt 26, belt 26 drives axle 24 and rotates, drives clockwork spring 25 again and rotates the constriction, utilizes multiunit tension to avoid the heavy falling of fusion tube 8, can realize soft falling, the utility model provides the protection of high device reduces the condition that can not in time fall after the fusing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a drop out fuse device, includes insulator (1), its characterized in that: the top of the right side wall of the insulator (1) is fixedly provided with a first connecting plate (2), the left side of the top of the first connecting plate (2) is fixedly provided with a first connecting terminal (3), the right side of the bottom of the first connecting plate (2) is fixedly provided with a cast steel pipe sleeve (4), the bottom of the right side wall of the insulator (1) is fixedly provided with a second connecting plate (5), the center of the bottom of the second connecting plate (5) is fixedly provided with a second connecting terminal (6), the right side wall of the second connecting plate (5) is fixedly provided with a connecting lug (7), the top of the connecting lug (7) is movably provided with a fusion tube (8), the top of the outer wall of the fusion tube (8) is fixedly provided with a pull ring (9), the top of the inner cavity of the fusion tube (8) penetrates through an external lead (10), and the external lead (10) is fixedly connected with a thin spring (27), the inner chamber top and the bottom of fusion tube (8) are fixedly provided with explosion-proof cavity (11), the inner chamber center of fusion tube (8) is fixedly provided with vacuum chamber (12), the bottom fixedly connected with of thin spring (27) is connected with lead (13), the upper lead (13) runs through explosion-proof cavity (11) and extends to the inner chamber of vacuum chamber (12), the lower end fixedly connected with fuse wire (14) of upper lead (13), the lower end fixedly connected with lower lead (15) of fuse wire (14), lower lead (15) runs through vacuum chamber (12) and explosion-proof cavity (11) and then extends out from the bottom of fusion tube (8), the inner chamber left side wall of engaging lug (7) is fixedly provided with fixing seat (16), the inner chamber bottom of engaging lug (7) is fixedly provided with reset spring (17), the top of reset spring (17) is fixedly provided with supporting plate (18), the top of the supporting plate (18) is movably clamped with an insulating protective cover (19), the inner cavity of the insulating protective cover (19) is fixedly provided with a fusion tube (8), the fixed seat (16) consists of two fixed plates (20), a rotating rod (21) is movably assembled between the fixed plates (20), the outer wall of the rotating rod (21) is fixedly sleeved with a sleeving ring (22), the right side of the sleeving ring (22) is fixedly connected with an insulating protective cover (19), the left side of the front side wall of the fixing plate (20) at the rear side is fixed with a bearing (23), the front side wall of the bearing (23) is movably assembled with a wheel shaft (24), the front side wall of the wheel shaft (24) is fixedly connected with a clockwork spring (25), the front end of the clockwork spring (25) is fixedly connected with the fixing plate (20) at the front side, the top of the wheel shaft (24) is fixedly connected with the top of the sleeve ring (22) through a belt (26).
2. A drop out fuse apparatus as claimed in claim 1, wherein: and the outer walls of the insulator (1), the first connecting plate (2) and the cast steel pipe sleeve (4) are fixedly provided with insulating protective sleeves.
3. A drop out fuse apparatus as claimed in claim 1, wherein: the left side wall and the bottom of the connecting lug (7) are sealed, and the top and the right side wall of the connecting lug (7) are provided with openings.
4. A drop out fuse apparatus as claimed in claim 1, wherein: the bottom and the right side wall of insulating protective cover (19) are circular-arc, and the arc groove has been seted up on the top right side of backup pad (18), arc groove and insulating protective cover (19) looks adaptation.
5. A drop out fuse apparatus as claimed in claim 1, wherein: the fusion tube (8) has a downward inclination angle of twenty-five degrees, and the thin spring (27) is also provided with a lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120451880.XU CN214254333U (en) | 2021-03-02 | 2021-03-02 | Drop-out fuse device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120451880.XU CN214254333U (en) | 2021-03-02 | 2021-03-02 | Drop-out fuse device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214254333U true CN214254333U (en) | 2021-09-21 |
Family
ID=77727314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120451880.XU Expired - Fee Related CN214254333U (en) | 2021-03-02 | 2021-03-02 | Drop-out fuse device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214254333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116417303A (en) * | 2023-03-21 | 2023-07-11 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
-
2021
- 2021-03-02 CN CN202120451880.XU patent/CN214254333U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116417303A (en) * | 2023-03-21 | 2023-07-11 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
| CN116417303B (en) * | 2023-03-21 | 2023-09-01 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |