CN202268298U - Insulated pull rod - Google Patents
Insulated pull rod Download PDFInfo
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- CN202268298U CN202268298U CN2011203066534U CN201120306653U CN202268298U CN 202268298 U CN202268298 U CN 202268298U CN 2011203066534 U CN2011203066534 U CN 2011203066534U CN 201120306653 U CN201120306653 U CN 201120306653U CN 202268298 U CN202268298 U CN 202268298U
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- tension pole
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Abstract
This utility model provides an insulating pull rod, belonging to the technical field of electric appliances; the insulated pull rod disclosed by this utility model solves problems of a broken-down current insulated pull rod and external creepage easily caused on a high altitude condition; the insulated pull rod disclosed by this utility model comprises a rod-shaped body made of insulated material, wherein two ends of a body are provided with a connecting piece 1 and a connecting piece 2 which are capable of connecting high voltage with low voltage; the lateral part of the body comprises an umbrella group capable of increasing a creepage distance; the creepage distance between the two ends of the body is at least 1053mm; an insulated thickness between the two ends of the body is at least 137mm; and the insulated pull rod disclosed by this utility model has advantages of non-creepage phenomenon, high use safety and the like on the high attitude condition.
Description
Technical field
The utility model belongs to technical field of electric appliances, relates to a kind of insulated tension pole, relates in particular to a kind of insulated tension pole that is used for vacuum circuit-breaker.
Background technology
Vacuum circuit-breaker is the circuit breaker of a kind of contact in the bubble of high vacuum deciliter, because of the dielectric in contact gap behind its arc-extinguishing medium and the arc extinguishing all is that high vacuum is gained the name; It has volume little, in light weight, be applicable to the advantage that frequent operation, arc extinguishing need not overhaul, in power distribution network, use comparatively universal.
At present, vacuum circuit-breaker commonly used generally comprises vacuum interrupter, pole or parts such as insulating cylinder, insulated tension pole, and wherein, insulated tension pole is connected in the vacuum interrupter below, is used to control the closed or disconnection between the indoor sound contact of vacuum extinction.Therefore, the quality of its performance can directly influence the security reliability of withstand voltage properties, insulation property, break performance and the operation of vacuum circuit-breaker.
Existing insulated tension pole is generally shaft-like body, and its upper end is used to connect vacuum interrupter, and the lower end is used to connect low pressure.Upwards do the time spent when what its lower end received external force, the indoor dynamic/static contact of the upper end control vacuum extinction of insulated tension pole near and closed.When external force disappeared, insulated tension pole restored to the original state, and dynamic/static contact breaks off.
Yet; The specification of existing insulated tension pole only can be used in the low altitude area; When it was used in height above sea level and reaches regional more than 4000 meters, because rarefaction of air, environment was abominable; Very easily cause the breakdown or outside creepage phenomenon that occurs of insulated tension pole, the safe in utilization of vacuum circuit-breaker threatened.
Summary of the invention
The purpose of the utility model is the problems referred to above that exist to prior art, has proposed the insulated tension pole of good and its surperficial no creepage phenomenon of a kind of resistance to pressure.
The purpose of the utility model can realize through following technical proposal:
A kind of insulated tension pole; Comprise the shaft-like body that insulating material is processed; Described body two ends are respectively arranged with the connector one and connector two that is used to connect high pressure and low pressure, it is characterized in that described body sidepiece has the cluster parachute that is used to increase creepage distance; And the creepage distance between the said body two ends is at least 1053 millimeters, and the insulation thickness between the described body two ends is at least 137 millimeters.
During use, the connector one at insulated tension pole two ends is connected with low pressure with high pressure respectively with connector two, wherein, high-pressure side is connected directly to vacuum interrupter.This insulated tension pole is brought up to the creepage distance between high-pressure side and the low-pressure end more than 1053 millimeters through the cluster parachute that is arranged at the body sidepiece, and the vacuum circuit-breaker of 40.5kV that has satisfied 4000 meters height above sea level places has been eliminated creepage phenomenon to the requirement of creepage distance.Simultaneously, the length increase with insulated tension pole reaches more than 137 millimeters the insulation thickness between its two ends, prevents that it is in use breakdown.
In above-mentioned a kind of insulated tension pole, two ends that are used to connect high pressure and low pressure on the described body offer first groove and second groove respectively, and described connector one is arranged at above-mentioned first groove and second groove respectively with connector two.
In above-mentioned a kind of insulated tension pole; The opening part of described first groove is provided with the interior plug of nut of a ring-type; Described connector one for this nut in the middle part that socket-connects of plug have the guide post of shoulder block, and the shoulder block on this guide post is arranged in the groove with respect to plug in the above-mentioned nut, also is provided with an elastic component in described first groove; One end and the groove inboard of said elastic component lean, and shoulder block leans with respect to a side of groove on the other end and the above-mentioned guide post.In normal condition following time,, elastic component is in diastole state, and the inboard of plug leans in the shoulder block of guide post and the nut, guide post can't with nut in fill in and be separated.Upwards do the time spent when what the insulated tension pole lower end received external force, guide post impels the indoor sound closing of contact of vacuum extinction to the arc extinguishing indoor sport, and elastic component then is compressed; When the external force effect disappeared, guide post moved downward, and the sound contact is broken off, and elastic component also restores to the original state gradually.
In above-mentioned a kind of insulated tension pole; Also be provided with a tube-like base open in described first groove with the close-fitting end of its inwall; The opening direction of described base and its openend consistent with above-mentioned groove slightly stretches out in the opening part of groove; Plug is arranged at the opening part of said base in the above-mentioned nut, leans with respect to the other end that leans with above-mentioned shoulder block and the inner face of above-mentioned base on the described spring part.
In above-mentioned a kind of insulated tension pole, an end that is used to connect low pressure on the described body also is arranged with a silicone rubber sleeve, and the described silicone rubber sleeve outside has cluster parachute.Silicone rubber sleeve is arranged at low-pressure end can prevent that dust from getting into pole inner chamber end operating position, and the cluster parachute of its arranged outside then can increase the creepage distance of high-pressure side to low-pressure end.
In above-mentioned a kind of insulated tension pole, the cluster parachute place on the described body also is connected with the reinforcement that is used to strengthen the body mechanical strength.
In above-mentioned a kind of insulated tension pole, described elastic component is the dish spring.
In above-mentioned a kind of insulated tension pole, described connector two is the brass inserts, and the outer surface of described brass inserts and above-mentioned second groove are closely connected.
In above-mentioned a kind of insulated tension pole, described body adopts PA66 Reinforced Nylon material to process.The use of this material makes and makes its inner electric field better evenly by the bubble collapse in the body after the moulding, improved its useful life.
Compared with prior art, this insulated tension pole has the following advantages:
1, the body arranged outside cluster parachute of this insulated tension pole has increased the creepage distance between the high-low pressure end face, has eliminated existing pull bar and has been used in the creepage phenomenon that 4000 meters Altitude Regions can occur; Simultaneously, increased the thickness between the high-low pressure end face, prevented that insulated tension pole is breakdown, safe to use.
2, the body arranged outside reinforcement of this insulated tension pole has increased the mechanical strength of pull bar, and then has improved its useful life.
3, the low-pressure end of this insulated tension pole is sheathed has the silicone rubber sleeve of cluster parachute, both can prevent that dust from getting into pole inner chamber end operating position, and influence is used, and can increase creepage distance again, improves its fail safe.
Description of drawings
Fig. 1 is the structural representation of this insulated tension pole.
Fig. 2 is the sectional structure sketch map of this insulated tension pole.
Among the figure, 1, body; 1a, first groove; 1b, second groove; 2, connector one; 2a, shoulder block; 3, connector two; 4, cluster parachute; 5, plug in the nut; 6, elastic component; 7, base; 8, silicone rubber sleeve; 9, reinforcement.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Like Fig. 1, shown in Figure 2; This insulated tension pole comprises the shaft-like body 1 that insulating material is processed; These body 1 two ends offer the first groove 1a and the second groove 1b respectively, are provided with the connector 1 and connector 23 that are used to be connected high pressure and low pressure respectively at the first groove 1a and the second groove 1b place.The sidepiece of body 1 also has the cluster parachute 4 that is used to increase creepage distance.In the present embodiment, body 1 adopts PA66 Reinforced Nylon material to process; Connector 1 has the guide post of shoulder block 2a for the middle part, the brass inserts of connector 23 for being closely connected with the second groove 1b; Cluster parachute 4 structures that increase make the creepage distance of this insulated tension pole reach 1055 millimeters, and the length of body 1 then reaches 137 millimeters.Here, the creepage distance that satisfies user demand can calculate according to formula: creepage distance=(height above sea level-1000)/10000*810+810.
Be provided with the open tube-like base 7 of the end that is closely connected with this groove inwall in the first groove 1a, the opening direction of this base 7 and its opening part consistent with the opening direction of groove slightly stretches out the openend of groove.The opening part of this base 7 also is connected with the interior plug 5 of nut of a ring-type, 5 sheathed connections of plug in above-mentioned guide post and this nut, and its shoulder block 2a is positioned at the inboard of nut plug 5.Also be provided with an elastic component 6 in the base 7, the inboard of these elastic component 6 one ends and guide post shoulder block 2a leans, and the inner face of the other end and base 7 leans.In the present embodiment, elastic component 6 is the dish spring.
When using this insulated tension pole, can earlier guide post be connected high pressure and low pressure respectively with the brass inserts, here, guide post is connected to the vacuum interrupter place.At this moment, the dish spring in the base 7 is in diastole state, and the inboard of plug 5 leans in the shoulder block 2a of guide post and the nut.When the insulated tension pole lower end receives the external force effect and moves upward, guide post promote the indoor dynamic/static contact of vacuum extinction near and contact, guide post then can't continue motion; At this moment; Plug 5 and guide post generation relative motion in the nut, guide post is through shoulder block 2a extruding dish spring, and the dish spring shrinks.When the external force effect disappeared, guide post moved downward, and the sound contact is broken off, and the dish spring also restores to the original state gradually, and 2a releases guide post through shoulder block, until its with nut in fill in 5 and lean.
In addition, for strengthening the mechanical strength of this insulated tension pole, increased reinforcement 9 in body 1 outside the latter half; For preventing that dust from getting into pole inner chamber end operating position; Also on body 1, be used to connect the sheathed silicone rubber sleeve 8 in the end outside of low pressure; The sidepiece of this silicone rubber sleeve 8 also has cluster parachute 4, can further increase creepage distance, improves the fail safe that this insulated tension pole uses.
In the present embodiment, all applicable to the vacuum circuit-breaker of 4000 meters Altitude Regions 40.5kV, its concrete specification can be done corresponding change according to user's actual demand for creepage distance between the high-low pressure of insulated tension pole and insulation thickness.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (9)
1. insulated tension pole; Comprise the shaft-like body (1) that insulating material is processed; Described body (1) two ends are respectively arranged with the connector one (2) and connector two (3) that is used to connect high pressure and low pressure, it is characterized in that described body (1) sidepiece has the cluster parachute (4) that is used to increase creepage distance; And the creepage distance between said body (1) two ends is at least 1053 millimeters, and the insulation thickness between described body (1) two ends is at least 137 millimeters.
2. a kind of insulated tension pole according to claim 1; It is characterized in that; Two ends that are used to connect high pressure and low pressure on the described body (1) offer first groove (1a) and second groove (1b) respectively, and described connector one (2) is arranged at above-mentioned first groove (1a) respectively with connector two (3) and locates with second groove (1b).
3. a kind of insulated tension pole according to claim 2; It is characterized in that; The opening part of described first groove (1a) is provided with the interior plug of nut (5) of a ring-type; Described connector one (2) for this nut in the middle part that socket-connects of plug (5) have the guide post of shoulder block (2a), and the shoulder block on this guide post (2a) is arranged in the groove with respect to plug (5) in the above-mentioned nut, also is provided with an elastic component (6) in described first groove (1a); One end and the groove inboard of said elastic component (6) lean, and shoulder block (2a) leans with respect to a side of groove on the other end and the above-mentioned guide post.
4. a kind of insulated tension pole according to claim 3; It is characterized in that; Also be provided with a tube-like base (7) open in described first groove (1a) with the close-fitting end of its inwall; The opening direction of described base (7) and its openend consistent with above-mentioned groove slightly stretches out in the opening part of groove; Plug (5) is arranged at the opening part of said base (7) in the above-mentioned nut, leans with respect to the other end that leans with above-mentioned shoulder block (2a) and the inner face of above-mentioned base (7) on the described spring part.
5. according to any described a kind of insulated tension pole in the claim 1～4, it is characterized in that an end that is used to connect low pressure on the described body (1) also is arranged with a silicone rubber sleeve (8), described silicone rubber sleeve (8) outside has cluster parachute (4).
6. according to any described a kind of insulated tension pole in the claim 1～4, it is characterized in that the cluster parachute (4) on the described body (1) locates also to be connected with the reinforcement (9) that is used to strengthen body (1) mechanical strength.
7. according to claim 3 or 4 described a kind of insulated tension poles, it is characterized in that described elastic component (6) is the dish spring.
8. according to claim 2 or 3 or 4 described a kind of insulated tension poles, it is characterized in that described connector two (3) is the brass inserts, the outer surface of described brass inserts and above-mentioned second groove (1b) are closely connected.
9. according to any described a kind of insulated tension pole in the claim 1～4, it is characterized in that described body (1) adopts PA66 Reinforced Nylon material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203066534U CN202268298U (en) | 2011-08-22 | 2011-08-22 | Insulated pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203066534U CN202268298U (en) | 2011-08-22 | 2011-08-22 | Insulated pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268298U true CN202268298U (en) | 2012-06-06 |
Family
ID=46159083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203066534U Expired - Lifetime CN202268298U (en) | 2011-08-22 | 2011-08-22 | Insulated pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298359A (en) * | 2016-08-30 | 2017-01-04 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of plateau vacuum circuit breaker |
| CN113299516A (en) * | 2021-04-14 | 2021-08-24 | 珠海沃顿电气有限公司 | Locking pull rod, circuit breaker and looped netowrk cabinet |
-
2011
- 2011-08-22 CN CN2011203066534U patent/CN202268298U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298359A (en) * | 2016-08-30 | 2017-01-04 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of plateau vacuum circuit breaker |
| CN113299516A (en) * | 2021-04-14 | 2021-08-24 | 珠海沃顿电气有限公司 | Locking pull rod, circuit breaker and looped netowrk cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |
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| CX01 | Expiry of patent term |