CN204792253U - Explosion -proof insulator starting rod of preventing breaking of movable lightning protection - Google Patents
Explosion -proof insulator starting rod of preventing breaking of movable lightning protection Download PDFInfo
- Publication number
- CN204792253U CN204792253U CN201520500909.3U CN201520500909U CN204792253U CN 204792253 U CN204792253 U CN 204792253U CN 201520500909 U CN201520500909 U CN 201520500909U CN 204792253 U CN204792253 U CN 204792253U
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- Prior art keywords
- insulator
- explosion
- starting rod
- movable
- lightning protection
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Abstract
The utility model relates to an industrial electric devices technical field especially relates to the insulator accessory that is arranged in electric power system transmission line, distribution circuit and transformer substation, specific explosion -proof insulator starting rod of preventing breaking of movable lightning protection that says so, including stiff end and expansion end, stiff end and expansion end pass through fixing device swing joint, the stiff end is hollow structure, one end and insulator body fixed connection, the expansion end includes the pole body, locking spring and locking plunger, the pole body is hollow structure, locking spring sets up in the cavity of the pole body, locking spring's one end contacts bottom the cavity, the other end and locking plunger fixed connection, the locking plunger can be held just to the part that the stiff end is connected with the expansion end. The beneficial effects of the utility model reside in that an explosion -proof insulator starting rod of preventing breaking of movable lightning protection is provided, it has the obvious trouble prompt facility and the hidden danger of not falling, is expected to replace the fixed starting rod on the current insulator.
Description
Technical field
The utility model relates to power equipment technical field, particularly relates to the insulator accessory for transmission line in electric power system, power distribution circuit and transformer station, a kind of movable lightning protection explosion-proof breaking line preventive insulator starting rod specifically.
Background technology
Existing transmission of electricity power distribution circuit all have employed insulated conductor, they solve the safety problems such as the electric current corridor that plain conductor originally has, but the overvoltage caused due to reasons such as thunderbolts in actual use breaks, the situation making whole electric line produce operation troubles happens occasionally, especially south China area, the meteorology that lightning flashes and thunder rumbles is more frequent, therefore the electric network fault caused has accounted for 36.8% of whole line fault, wherein lightning-caused breaking rate accounts for 96.8%, greatly have impact on the normal power supply of gauze, cause huge loss to national economy.Therefore the disconnection problem that insulated conductor causes because of overvoltage must be solved, the safe operation of guarantee overhead insulating transmission and distribution network.
Existing compound pillar zinc oxide anti-thunder insulator, be connected in series by internal clearance group and zinc oxide resistance sheet, interior electrode, outer envelope silastic material, upper end gold utensil is electrode, and lower end construction bolt is by metallic support or wire ground composition.Existing insulator starting rod is generally be fixedly installed in insulator body, the anti-thunder insulator of this kind of structure is when suffering multiple or direct attack thunderbolt, interior insulator gas sharply expands, easily wash gold utensil open or destroy epoxy cylinder, anti-thunder insulator is caused to damage, and owing to damaging without obviously identifying, inspection attendant not easily finds the anti-thunder insulator damaged, and brings hidden danger to the safe operation of distribution line.
Utility model content
The technical problems to be solved in the utility model is: providing a kind of does not have a movable lightning protection explosion-proof breaking line preventive insulator starting rod of potential safety hazard with obvious fault cues function.
For solving the problems of the technologies described above, the utility model provides following technical scheme: movable lightning protection explosion-proof breaking line preventive insulator starting rod, comprises stiff end and movable end; Described stiff end and movable end are flexibly connected by fixture; Described stiff end is hollow structure, and one end is fixedly connected with insulator body; Described movable end comprises pole body, locking spring and plunger piston locking, and described pole body is hollow structure, and described locking spring is arranged in the cavity of pole body, and one end of described locking spring contacts with cavity bottom, and the other end is fixedly connected with plunger piston locking; The part that described stiff end is connected with movable end can hold plunger piston locking just; Under insulator normal operation, the tension force of locking spring makes plunger piston locking go deep into stiff end inside; When interior insulator gas reaches preset pressure when sharply expanding, promote plunger piston locking and exit stiff end inside, when retreating to predeterminable range, stiff end is separated with movable end; Due to the effect of fixture, can not drop after movable end is separated with stiff end, the insulator broken down when attendant checks circuit, can easily be found.
Preferably, described movable lightning protection explosion-proof breaking line preventive insulator starting rod surface coverage has reflective membrane or reflecting coating, so that can easily find the anti-thunder insulator broken down when attendant checks circuit.
Preferably, described stiff end is explosion-proof valve seat; Stiff end can be arranged on exterior insulator, also can be arranged at interior insulator.
Described fixture is hinge, due to the effect of hinge, after movable end is separated with stiff end in vertical state, can easily find the insulator broken down when attendant checks circuit.
The beneficial effects of the utility model there are provided a kind of movable lightning protection explosion-proof breaking line preventive insulator starting rod, and it is expected to the fixed starting rod replaced on existing insulator with obvious fault cues function and hidden danger of not falling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the movable lightning protection of the utility model explosion-proof breaking line preventive insulator starting rod.
Fig. 2 is the structural representation that the movable lightning protection of the utility model explosion-proof breaking line preventive insulator starting rod is in embodiment when dropping state
Reference numeral: 1. stiff end; 2. plunger piston locking; 3. locking spring; 4. pole body; 5. hinge; 6. cavity.
Embodiment
Movable lightning protection explosion-proof breaking line preventive insulator starting rod, comprises stiff end 1 and movable end; Stiff end 1 is connected by hinge 5 with movable end; Stiff end 1 is hollow structure, and one end is fixedly connected with insulator body; Movable end comprises pole body 4, locking spring 3 and plunger piston locking 2, pole body 4 is hollow structure, and inside is provided with cavity 6, and locking spring 3 is arranged in the cavity 6 of pole body 4, one end of locking spring 3 is connected with bottom cavity 6, and the bottom connection of the other end and plunger piston locking 14 touches; The part that stiff end 13 is connected with movable end can hold plunger piston locking 14 just; Under insulator normal operation, the tension force of locking spring 15 makes plunger piston locking 14 go deep into stiff end 13 inside; As shown in Figure 2, when reaching preset pressure when interior insulator gas sharply expands, wash explosion-proof pad 12 open, and promotion plunger piston locking 14 exits stiff end 13 inside further, when retreating to predeterminable range, stiff end 13 is separated with movable end; Due to the effect of hinge 17, movable end in vertical state, can easily find the insulator broken down after being separated with stiff end 13 when attendant checks circuit.
In a preferred implementation of the present utility model, movable lightning protection explosion-proof breaking line preventive insulator starting rod surface coverage has reflective membrane or reflecting coating, so that can easily find the anti-thunder insulator broken down when attendant checks circuit.
In a preferred implementation of the present utility model, stiff end 1 is explosion-proof valve seat, and one end is fixedly connected with the gas channel in insulator, and the other end is connected with the movable end of starting rod.
More than display only describes principal character of the present utility model and main points.Those skilled in the art should understand, and the utility model is not restricted to the described embodiments.Under the prerequisite not departing from inventive point and protection range, the utility model also has various change, and these changes and improvements all will fall in the claimed scope of the utility model.
Claims (4)
1. movable lightning protection explosion-proof breaking line preventive insulator starting rod, is characterized in that, comprises stiff end (1) and movable end; Described stiff end (1) and movable end are flexibly connected by fixture; Described stiff end (1) is hollow structure, and the other end is fixedly connected with insulator body; Described movable end comprises pole body (4), locking spring (3) and plunger piston locking (2), described pole body (4) is hollow structure, described locking spring (3) is arranged in the cavity (6) of pole body (4), one end of described locking spring (3) is connected with cavity (6) bottom, and the other end is fixedly connected with plunger piston locking (2); The part that described stiff end (1) is connected with movable end can hold plunger piston locking (2) just.
2. movable lightning protection as claimed in claim 1 explosion-proof breaking line preventive insulator starting rod, is characterized in that described movable lightning protection explosion-proof breaking line preventive insulator starting rod surface coverage has reflective membrane or reflecting coating.
3. movable lightning protection as claimed in claim 1 explosion-proof breaking line preventive insulator starting rod, is characterized in that described stiff end (1) is for explosion-proof valve seat.
4. the movable lightning protection explosion-proof breaking line preventive insulator starting rod as described in any one of claim 1-3, is characterized in that described fixture is hinge (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500909.3U CN204792253U (en) | 2015-07-10 | 2015-07-10 | Explosion -proof insulator starting rod of preventing breaking of movable lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520500909.3U CN204792253U (en) | 2015-07-10 | 2015-07-10 | Explosion -proof insulator starting rod of preventing breaking of movable lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792253U true CN204792253U (en) | 2015-11-18 |
Family
ID=54532253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520500909.3U Expired - Fee Related CN204792253U (en) | 2015-07-10 | 2015-07-10 | Explosion -proof insulator starting rod of preventing breaking of movable lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792253U (en) |
-
2015
- 2015-07-10 CN CN201520500909.3U patent/CN204792253U/en not_active Expired - Fee Related
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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: 20151118 Termination date: 20210710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |