CN103426667A - Waterproof device for spindle of isolating switch - Google Patents
Waterproof device for spindle of isolating switch Download PDFInfo
- Publication number
- CN103426667A CN103426667A CN2013104095862A CN201310409586A CN103426667A CN 103426667 A CN103426667 A CN 103426667A CN 2013104095862 A CN2013104095862 A CN 2013104095862A CN 201310409586 A CN201310409586 A CN 201310409586A CN 103426667 A CN103426667 A CN 103426667A
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- waterproof device
- isolating switch
- rubber tube
- spindle
- stainless steel
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Abstract
The invention relates to a waterproof device for a spindle of an isolating switch. The waterproof device is characterized by comprising a rubber pipe. The rubber pipe is divided into two identical half pipes (2) from the middle in the axial direction, and the bottom of each half pipe (2) is in sealing connection with a stainless steel semicircular plate (3). Trial shows that the waterproof device can effectively prevent rain from entering a mechanism box through the spindle to avoid direct-current ground connection and alternating-current short circuit and guarantee safe and stable operation of equipment. Thus, the labor investment for finding the direct-current ground connection faults and the alternating-current short circuit fault is correspondingly avoided, and the labor cost is reduced. The waterproof device further improves equipment reliability and reduces the maintenance cost for removing rust on an auxiliary switch or the cost for replacing spare parts.
Description
Technical field
The present invention relates to a kind of isolating switch rotating shaft water-tight device.
Background technology
Generally be provided with at present many group isolating switches and grounding switch in the current conversion station of electric power system, combined type isolation switch and grounding switch that for example model is ZCW-363DW.Due to the type isolating switch, with grounding switch, rotating shaft is connected poor sealing, and while raining, rainwater easily enters change over switch by drive link, and then causes DC system grounding, and ac short circuit occurs, and the key addressed this problem is to prevent that rainwater from entering.
Summary of the invention
The purpose of this invention is to provide a kind of isolating switch rotating shaft water-tight device, can stop rainwater and enter in the isolating switch mechanism case.
A kind of isolating switch rotating shaft water-tight device, its special feature is: comprise rubber tube, it is two identical semicanals that this rubber tube is broken into from centre vertically, and the bottom of each semicanal all is tightly connected with a stainless steel semicircle ring flat-plate.
Wherein the external diameter from the top to the bottom of rubber tube becomes greatly gradually, and the 1.2-5 of the rubber tube external diameter of the bottom rubber tube external diameter that is top doubly.
Wherein each upper outer surface near stainless steel semicircle ring flat-plate place in semicanal bottom is the arc caved inward.
Through probationary certificate, after adopting water-tight device of the present invention, can effectively prevent that rainwater is by rotating shaft access mechanism case, the generation of stopping DC earthing and ac short circuit, guarantee device security stable operation.Corresponding also just having stopped, because of the DC earthing that this problem causes, personnel's input that the ac short circuit trouble shoot is carried out, reduced the cost of human capital.Also improve equipment dependability, reduced because rainwater enters the rust cleaning maintenance cost that causes the auxiliary switch corrosion, or changed the cost of spare part.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention is a kind of isolating switch rotating shaft water-tight device, comprises rubber tube, and it is two identical semicanals 2 that this rubber tube is broken into from centre vertically, and the bottom of each semicanal 2 all is tightly connected with a stainless steel semicircle ring flat-plate 3.
Wherein the external diameter from the top to the bottom of rubber tube becomes greatly gradually, and the 1.2-5 of the rubber tube external diameter of the bottom rubber tube external diameter that is top is doubly, the rice bowl shape that for example rubber tube is bottom opening, or the outer surface of rubber tube be taper shape.
Be near stainless steel semicircle ring flat-plate 3 places the arc caved inward in addition on each semicanal 2 bottom, the applicant finds through research, arc herein caves inward thus, therefore form under Action of Gravity Field when falling when rainwater by semicanal 2 bottoms mobile current laterally, thereby water is not easy to the inner infiltrations of stainless steel semicircle ring flat-plate 3.
Using method of the present invention is:
The isolating switch rotating shaft 1 during use, two stainless steel semicircle ring flat-plates 3 are placed on mechanism case 4 is other, and make two stainless steel semicircle ring flat-plates 3 close up into one complete circular, now also to close up be a complete tubulose to two identical semicanals 2, then with the fluid sealant of waterproof, the gap between two semicanals 2 is bonded together, then the gap between two stainless steel semicircle ring flat-plates 3 also is bonded together and gets final product.It should be noted that, when bonding, the top of two semicanals 2 and isolating switch rotating shaft 1 need to be bonded together, and coat lubricating oil or lubricating grease between two stainless steel semicircle ring flat-plates 3 and mechanism case 4, can not have influence on like this normal rotation of isolating switch rotating shaft 1, also can make between two stainless steel semicircle ring flat-plates 3 and mechanism case 4 the better of sealing.
Claims (3)
1. an isolating switch rotating shaft water-tight device, it is characterized in that: comprise rubber tube, it is two identical semicanals (2) that this rubber tube is broken into from centre vertically, and the bottom of each semicanal (2) all is tightly connected with a stainless steel semicircle ring flat-plate (3).
2. isolating switch rotating shaft water-tight device as claimed in claim 1, it is characterized in that: wherein the external diameter from the top to the bottom of rubber tube becomes greatly gradually, and the 1.2-5 of the rubber tube external diameter of the bottom rubber tube external diameter that is top doubly.
3. isolating switch rotating shaft water-tight device as claimed in claim 1 is characterized in that: the outer surface of wherein locating near stainless steel semicircle ring flat-plate (3) on each semicanal (2) bottom is the arc caved inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310409586.2A CN103426667B (en) | 2013-08-29 | 2013-09-10 | Isolating switch waterproof device for spindle |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383084.7 | 2013-08-29 | ||
| CN201310383084 | 2013-08-29 | ||
| CN201310409586.2A CN103426667B (en) | 2013-08-29 | 2013-09-10 | Isolating switch waterproof device for spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103426667A true CN103426667A (en) | 2013-12-04 |
| CN103426667B CN103426667B (en) | 2015-11-18 |
Family
ID=49651265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310409586.2A Active CN103426667B (en) | 2013-08-29 | 2013-09-10 | Isolating switch waterproof device for spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103426667B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253068A (en) * | 2016-08-10 | 2016-12-21 | 国网江苏省电力公司南通供电公司 | Transformer station's disconnecting link manual-operating mechanism bucker |
| CN106298377A (en) * | 2016-10-14 | 2017-01-04 | 无锡市海升电子科技有限公司 | A kind of earth leakage protective device being easy to protection against the tide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384184A (en) * | 1977-09-11 | 1983-05-17 | Consejo Nacional De Ciencia Y Technologia Of Mexico | Explosion-proof device for measuring liquid levels |
| CN1865750A (en) * | 2005-11-11 | 2006-11-22 | 兰州理工大学 | Waterproof fitting for preventing water leakage of pipeline |
| CN203491138U (en) * | 2013-09-10 | 2014-03-19 | 国家电网公司 | Rotating shaft waterproof device of isolation switch |
-
2013
- 2013-09-10 CN CN201310409586.2A patent/CN103426667B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384184A (en) * | 1977-09-11 | 1983-05-17 | Consejo Nacional De Ciencia Y Technologia Of Mexico | Explosion-proof device for measuring liquid levels |
| CN1865750A (en) * | 2005-11-11 | 2006-11-22 | 兰州理工大学 | Waterproof fitting for preventing water leakage of pipeline |
| CN203491138U (en) * | 2013-09-10 | 2014-03-19 | 国家电网公司 | Rotating shaft waterproof device of isolation switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253068A (en) * | 2016-08-10 | 2016-12-21 | 国网江苏省电力公司南通供电公司 | Transformer station's disconnecting link manual-operating mechanism bucker |
| CN106298377A (en) * | 2016-10-14 | 2017-01-04 | 无锡市海升电子科技有限公司 | A kind of earth leakage protective device being easy to protection against the tide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103426667B (en) | 2015-11-18 |
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| C14 | Grant of patent or utility model | ||
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