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Plugging head for effectively preventing oil leakage of high voltage breaker hydraulic mechanism and manufacturing method thereof

A technology for high-voltage circuit breakers and hydraulic mechanisms, applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problems of increased oil leakage of hydraulic mechanisms, failure to block oil nozzles, etc., and achieve enhanced sealing effect and easy installation and disassembly Simple and avoid the effect of poor airtightness

Inactive Publication Date: 2018-02-06
STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the oil leakage of the hydraulic mechanism is intensified when the high-voltage circuit breaker is disturbed by the outside world, and the oil nozzle cannot be effectively blocked, and to provide a plugging that can effectively prevent the oil leakage of the hydraulic mechanism of the high-voltage circuit breaker Head and its manufacturing method

Method used

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  • Plugging head for effectively preventing oil leakage of high voltage breaker hydraulic mechanism and manufacturing method thereof
  • Plugging head for effectively preventing oil leakage of high voltage breaker hydraulic mechanism and manufacturing method thereof
  • Plugging head for effectively preventing oil leakage of high voltage breaker hydraulic mechanism and manufacturing method thereof

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specific Embodiment approach 1

[0017] Combine figure 1 To explain this embodiment, the plugging head described in this embodiment that effectively prevents oil leakage of the hydraulic mechanism of a high-voltage circuit breaker includes a tightening portion 1, a plugging portion 2 and a locking mechanism 3. At present, the hydraulic The oil leakage of the mechanism is generally not plugged or simply use a tube and seal the bottom end.

[0018] The tightening part 1 and the sealing part 2 are both hollow cylindrical, and the bottom surface of the sealing part 2 is closed, the tightening part 1 is coaxially fixed above the sealing part 2, and the tightening part 1 and the sealing part 2 The inner diameter gradually decreases from the top of the tightening portion 1; the locking mechanism 3 wraps around and tightens the outer wall of the tightening portion 1.

[0019] The tightening part 1 and the blocking part 2 constitute an elastic rubber sleeve, which can be sleeved on the end of the oil pipe of the hydraulic ...

specific Embodiment approach 2

[0020] Combine figure 2 with image 3 To illustrate this embodiment, the difference between the second embodiment and the first embodiment is that there are stepped concave-convex ribs 16 from top to bottom along the inner walls of the tightening portion 1 and the blocking portion 2, due to the oil nozzle of the high-voltage circuit breaker Such as image 3 As shown, the outer wall is a multi-layer stepped round tube, so the stepped concave-convex rib 16 matching the outer wall of the oil nozzle is added to the inner wall of this embodiment, which can be more firmly sleeved on it, so that the sealing effect is better. It can further prevent the locking mechanism 3 from falling immediately and losing the blocking effect due to the damage of the locking mechanism 3, and the matched structure ensures that the staff can discover the impending failure of the blocking in time, and take repair and replacement operations.

specific Embodiment approach 3

[0021] Combine figure 2 , image 3 with Figure 4 Explaining this embodiment, the difference between this embodiment 3 and embodiment 1 or embodiment 2 is that the outer diameter of the tightening portion 1 is smaller than the outer diameter of the blocking portion 2, even if the outer diameter of the tightening portion 1 is made during manufacturing. The diameter is smaller than the outer diameter of the blocking part 2, and there is no difficulty in manufacturing technology, but it can not only save more costs, but also make the locking mechanism 3 easier to get stuck in the position of the tightening part 1, preventing The string moves and falls off.

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Abstract

The invention relates to a plugging head for effectively preventing oil leakage of a high voltage breaker hydraulic mechanism and a manufacturing method thereof aims to solve a problem of incapabilityof effectively plugging an oil nozzle when oil leakage of the hydraulic mechanism is aggravated because of external interference existing in a high voltage breaker. The plugging head comprises a fastening portion, a plugging portion and a locking mechanism, wherein the fastening portion and the plugging portion are respectively a hollow cylindrical structure, a bottom surface of the plugging portion is enclosed, the fastening portion is coaxially fixed at an upper portion of the plugging portion, inner walls of the fastening portion and the plugging portion gradually contract from the top portion of the fastening portion, and the locking mechanism surrounds and is further hooped at an outer wall of the fastening portion. According to the manufacturing method of the plugging head, a semi-vulcanized rubber material is injected to a chamber of a die, the rubber material is then heated till complete sulfuration is realized, pressurization molding is further carried out, after cooling, demolding is carried out. The plugging head is advantaged in that an oil leakage portion can be effectively plugged when oil leakage because of vibration of a high voltage switch mechanism device occursor oil leakage can not be stopped through power failure.

Description

Technical field [0001] The invention relates to a plugging device and a manufacturing method thereof, in particular to a plugging head that effectively prevents oil leakage of a hydraulic mechanism of a high-voltage circuit breaker and a manufacturing method thereof. Background technique [0002] When the high-voltage circuit breaker is subjected to external interference, such as vibration caused by the action of the switch mechanism, and the aging of the internal rubber pad, the oil leakage of the hydraulic mechanism is increased. The existing hydraulic mechanism plugging head cannot effectively block the oil nozzle, and the existing The plugging head of the hydraulic mechanism cannot meet the requirements of processing without power failure when the equipment is operating. Generally, the failure can be processed only after power failure. Summary of the invention [0003] The purpose of the present invention is to overcome the problem that the oil leakage of the hydraulic mechani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/53F16L55/11B29C43/02B29C43/36
CPCH01H33/53B29C43/027B29C43/36B29C2043/029F16L55/1141
Inventor 刘文奇陈铁陈涛刘力伟彭程张智强段晓琳刘立弘陈亮李杨李涛赵钢
Owner STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO
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