CN204596662U - The water-tight device of high-pressure disconnecting switch motor structure case - Google Patents
The water-tight device of high-pressure disconnecting switch motor structure case Download PDFInfo
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- CN204596662U CN204596662U CN201520316745.9U CN201520316745U CN204596662U CN 204596662 U CN204596662 U CN 204596662U CN 201520316745 U CN201520316745 U CN 201520316745U CN 204596662 U CN204596662 U CN 204596662U
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- China
- Prior art keywords
- rain cover
- water
- disconnecting switch
- tight device
- power transmission
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 10
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 230000007547 defect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Abstract
This application discloses a kind of water-tight device of high-pressure disconnecting switch motor structure case, comprise the rain cover for sealing on the power transmission shaft being fixed on described high-pressure disconnecting switch motor structure case, described rain cover is positioned at the top of described high-pressure disconnecting switch motor structure case, and the bearing of described power transmission shaft is positioned at the projection of described rain cover along the axis direction of described power transmission shaft.In the water-tight device of this high-pressure disconnecting switch motor structure case, rain cover sealing is fixed on the power transmission shaft above motor mechanism box, and rain cover by the bearing cage between power transmission shaft and motor mechanism box thereunder.Therefore, when running into rainwater weather, rainwater is guided to bearing periphery by rain cover, and rainwater is difficult to extend in motor mechanism box by bearing, thus preventing the secondary direct current system in motor mechanism box to make moist, the accident avoiding motor mechanism box DC earthing occurs.
Description
Technical field
The utility model relates to electic protection technical field, particularly a kind of water-tight device of high-pressure disconnecting switch motor structure case.
Background technology
High-pressure disconnecting switch motor structure case (for convenience of description, hereinafter referred to as motor mechanism box) is the important electric equipment of transformer station.Staff finds, when rainy season, DC earthing defect often appears in transformer station, causes the abnormal running of secondary direct current system, even likely causes the serious accident of on-load broaching tool lock.By analyzing such defect cause over the years, find that 7% is that 13% is due to secondary component fault, and the reason of 80% is that secondary direct current system is made moist because secondary line damages.This shows, to be transformer station in rainy season the take place frequently main cause of DC earthing defect that in motor mechanism box, secondary direct current system is made moist.
And the reason that in motor mechanism box, secondary direct current system is made moist is because the waterproof construction of motor mechanism box is unreasonable caused.Existing waterproof measure only relies on the bearing degree of engagement between motor mechanism box with power transmission shaft to seal, but be sealed in gap in rotary course because mechanism case is rigid larger, rainwater can infiltrate in mechanism case along power transmission shaft from bearing, cause secondary direct current system to be made moist, DC earthing accident occurs.Also there is no reliable motor mechanism box water-tight device at present.
Utility model content
In view of this, the purpose of this utility model is the water-tight device providing a kind of high-pressure disconnecting switch motor structure case, can carry out effective waterproof to high-pressure disconnecting switch motor structure case, prevents secondary direct current system and makes moist.
For achieving the above object, the utility model provides following technical scheme:
A kind of water-tight device of high-pressure disconnecting switch motor structure case, comprise the rain cover for sealing on the power transmission shaft being fixed on described high-pressure disconnecting switch motor structure case, described rain cover is positioned at the top of described high-pressure disconnecting switch motor structure case, and the bearing of described power transmission shaft is positioned at the projection of described rain cover along the axis direction of described power transmission shaft.
Preferably, in above-mentioned water-tight device, the shape of described rain cover is umbrella, and described rain cover is provided with fixing hole, and described rain cover is fixed on described power transmission shaft by fixing hole sealing.
Preferably, in above-mentioned water-tight device, the diameter of the outer edge of described rain cover is more than or equal to 30cm.
Preferably, in above-mentioned water-tight device, the material of described rain cover is hydrophobic material.
Preferably, in above-mentioned water-tight device, described hydrophobic material is silicon rubber.
Preferably, in above-mentioned water-tight device, also comprise the draining top cover being arranged at described high-pressure disconnecting switch motor structure box top, described draining top cover is downward-sloping gradually to the edge of described draining top cover by the position at described bearing place.
Preferably, in above-mentioned water-tight device, described draining top cover is provided with rhone.
Compared with prior art, the beneficial effects of the utility model are:
In the water-tight device of the high-pressure disconnecting switch motor structure case that the utility model provides, comprise the rain cover on power transmission shaft that sealing is fixed on above motor mechanism box, rain cover by the bearing cage between power transmission shaft and motor mechanism box thereunder.Therefore, when running into rainwater weather, rainwater is guided to bearing periphery by rain cover, and rainwater is difficult to penetrate in motor mechanism box by bearing, thus preventing the secondary direct current system in motor mechanism box to make moist, the accident avoiding motor mechanism box DC earthing occurs.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Schematic diagram is shown in the assembling of the water-tight device of a kind of high-pressure disconnecting switch motor structure case that Fig. 1 provides for the utility model embodiment;
The vertical view of the rain cover of the water-tight device of a kind of high-pressure disconnecting switch motor structure case that Fig. 2 provides for the utility model embodiment.
Wherein, 1 be rain cover, 101 be fixing hole, 2 for draining top cover.
Embodiment
Core of the present utility model there is provided a kind of water-tight device of high-pressure disconnecting switch motor structure case, can carry out effective waterproof, prevent secondary direct current system from making moist and cause DC earthing accident to occur high-pressure disconnecting switch motor structure case.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of water-tight device of high-pressure disconnecting switch motor structure case, comprise rain cover 1, rain cover 1 is fixed on the power transmission shaft 4 of high-pressure disconnecting switch motor structure case 3 for sealing, rain cover 1 rotates with power transmission shaft 4, rain cover 1 is positioned at the top of high-pressure disconnecting switch motor structure case 3, and the bearing of power transmission shaft 4 is positioned at the projection of rain cover 1 along the axis direction of power transmission shaft 4.Namely rain cover 1 by bearing cage thereunder.
Above-mentioned water-tight device adopts rain cover 1, rainwater is fallen after on rain cover 1, the periphery of bearing is guided to by rain cover 1, due to fixing for sealing between rain cover 1 and power transmission shaft 4, therefore, rain cover 1 can stop that rainwater flows down along power transmission shaft 4, and penetrates into motor mechanism box inside by the bearing between power transmission shaft 4 and motor mechanism box, prevent secondary direct current system from making moist, and then prevent the generation of DC earthing accident.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of concrete rain cover 1, the shape of rain cover 1 is umbrella, rain cover 1 is provided with fixing hole 101, rain cover 1 is fixed on power transmission shaft 4 by fixing hole 101 sealing, the fixing hole 101 of rain cover 1 seals fixing with power transmission shaft 4 by the fluid sealant especially by hydrophobicity, prevents rainwater from infiltrating from fixing hole 101.Umbrella-shaped structure can make rainwater flow to the outer edge of rain cover 1 along the upper surface of rain cover 1, and rainwater flows down from outer edge, and because outer edge is away from bearing, therefore, rainwater can not enter in motor mechanism box.The outer edge of umbrella-shaped structure can be circular edges edge, rectangular edges edge, the asymmetric edge of polygon edge or center, as long as can cover bearing, prevents rainwater from entering motor mechanism box.
Further, be described for round edge umbrella-shaped structure for rain cover 1, the diameter of the outer edge of rain cover 1 is more than or equal to 30cm, the size of rain cover 1 is determined according to the size of motor mechanism box and the position of bearing, directly do not enter bearing with rainwater to be as the criterion, be not limited to the number range cited by the present embodiment.
In order to prevent the secondary direct current system in motor mechanism box from making moist better, the material of the rain cover 1 in the present embodiment is preferably hydrophobic material.After then rain cover 1 is soaked with rain, can be air-dry rapidly, keep the drying of rain cover 1, and then reduce the humidity of motor mechanism box inside, reach object moistureproof further.
As optimization, in the present embodiment, the hydrophobic material that rain cover 1 is selected is silicon rubber.Silicon rubber had both had the characteristic of hydrophobic, can make the rain cover with certain structural strength simultaneously, corrosion-resistant, long service life.Certainly, rain cover 1 also can adopt other hydrophobic material.
As shown in Figure 1, in order to strengthen the water resistance of water-tight device further, water-tight device in the present embodiment also comprises the draining top cover 2 being arranged at high-pressure disconnecting switch motor structure case 3 top, and draining top cover 2 is downward-sloping gradually to the edge of draining top cover 2 by the position at bearing place.Then rainwater is fallen after draining top cover 2 from the edge of rain cover 1, because the position at bearing place is higher, then rainwater along draining top cover 2 to its edge toward dirty, can not above draining top cover 2 ponding, therefore, prevent in motor mechanism box further and make moist.
Further, in the present embodiment, draining top cover 2 is provided with rhone, rhone extends along the bearing position of draining top cover 2 to the edge of draining top cover 2, carries out water conservancy diversion to rainwater.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the water-tight device of a high-pressure disconnecting switch motor structure case, it is characterized in that, comprise for sealing the rain cover (1) be fixed on the power transmission shaft (4) of described high-pressure disconnecting switch motor structure case (3), described rain cover (1) is positioned at the top of described high-pressure disconnecting switch motor structure case (3), and the bearing of described power transmission shaft (4) is positioned at the projection of described rain cover (1) along the axis direction of described power transmission shaft (4).
2. water-tight device according to claim 1, it is characterized in that, the shape of described rain cover (1) is umbrella, described rain cover (1) is provided with fixing hole (101), described rain cover (1) is fixed on described power transmission shaft (4) by described fixing hole (101) sealing.
3. water-tight device according to claim 2, is characterized in that, the diameter of the outer edge of described rain cover (1) is more than or equal to 30cm.
4. water-tight device according to claim 2, is characterized in that, the material of described rain cover (1) is hydrophobic material.
5. water-tight device according to claim 4, is characterized in that, described hydrophobic material is silicon rubber.
6. the water-tight device according to any one of claim 1-5, it is characterized in that, also comprise the draining top cover (2) being arranged at described high-pressure disconnecting switch motor structure case (3) top, described draining top cover (2) is downward-sloping gradually to the edge of described draining top cover (2) by the position at described bearing place.
7. water-tight device according to claim 6, is characterized in that, described draining top cover (2) is provided with rhone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316745.9U CN204596662U (en) | 2015-05-15 | 2015-05-15 | The water-tight device of high-pressure disconnecting switch motor structure case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316745.9U CN204596662U (en) | 2015-05-15 | 2015-05-15 | The water-tight device of high-pressure disconnecting switch motor structure case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596662U true CN204596662U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520316745.9U Active CN204596662U (en) | 2015-05-15 | 2015-05-15 | The water-tight device of high-pressure disconnecting switch motor structure case |
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| CN (1) | CN204596662U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655189A (en) * | 2016-01-12 | 2016-06-08 | 周海兵 | Disconnecting switch with rotation shaft water retaining structure |
| CN107946125A (en) * | 2017-12-06 | 2018-04-20 | 国家电网公司 | A kind of isolator operating mechanism case waterproof connecting device |
| CN107958808A (en) * | 2017-12-01 | 2018-04-24 | 国家电网公司 | Outdoor high-voltage operating mechanism case waterproof construction |
| CN114396471A (en) * | 2021-12-03 | 2022-04-26 | 国网浙江省电力有限公司桐庐县供电公司 | Rain-proof cover of transmission shaft connecting piece |
-
2015
- 2015-05-15 CN CN201520316745.9U patent/CN204596662U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655189A (en) * | 2016-01-12 | 2016-06-08 | 周海兵 | Disconnecting switch with rotation shaft water retaining structure |
| CN105655189B (en) * | 2016-01-12 | 2017-10-20 | 周海兵 | Disconnecting switch with rotary shaft water-retaining structure |
| CN107958808A (en) * | 2017-12-01 | 2018-04-24 | 国家电网公司 | Outdoor high-voltage operating mechanism case waterproof construction |
| CN107946125A (en) * | 2017-12-06 | 2018-04-20 | 国家电网公司 | A kind of isolator operating mechanism case waterproof connecting device |
| CN107946125B (en) * | 2017-12-06 | 2019-03-22 | 国家电网公司 | A kind of isolator operating mechanism case waterproof connecting device |
| CN114396471A (en) * | 2021-12-03 | 2022-04-26 | 国网浙江省电力有限公司桐庐县供电公司 | Rain-proof cover of transmission shaft connecting piece |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |