CN204289231U - A kind of Standard type circuit breaker case lid seal valve - Google Patents
A kind of Standard type circuit breaker case lid seal valve Download PDFInfo
- Publication number
- CN204289231U CN204289231U CN201420708393.7U CN201420708393U CN204289231U CN 204289231 U CN204289231 U CN 204289231U CN 201420708393 U CN201420708393 U CN 201420708393U CN 204289231 U CN204289231 U CN 204289231U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- hole
- screw hole
- case lid
- rubber cushion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of Standard type circuit breaker case lid seal valve, relate to primary cut-out technical field, be arranged on box of the circuit breaker to cover, described case lid is provided with a screw hole and rubber cushion hole, described screw hole is positioned at upper end, rubber cushion hole and screw hole is connected with rubber cushion hole, described screw hole is cylindrical shape, described rubber cushion hole is set to the top section radius truncated cone-shaped large compared with lower section radius, a screw is provided with in described screw hole, in in the middle part of described screw control and inside is provided with a bolt, described stud base passes screw and is connected with a rubber blanket.The beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, the problem of leakage is produced after effectively preventing filling sulphur hexafluoride, both atmospheric accuracy in case had been solved, again save cost, for company has saved trouble and worry in production in enormous quantities, in use also more convenient.
Description
Technical field:
The utility model relates to primary cut-out technical field, is specifically related to a kind of Standard type circuit breaker case lid seal valve.
Background technology:
Circuit breaker refer to the electric current that can close, carry and cut-off under normal loop condition and can close, the switching device of carrying and the electric current under cut-offfing abnormal loop condition in official hour.Circuit breaker can be used to distribute electric energy; infrequently start asynchronous motor; protection is carried out to power circuit and motor etc., can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.And generally do not need to change parts after disjunction fault current.At present, obtain a wide range of applications.Circuit breaker is divided into primary cut-out by its scope of application, and low-voltage circuit breaker, sulfur hexafluoride breaker utilizes SF6 gas as the novel high-voltage circuit-breaker of dielectric and arc-extinguishing medium, pure SF6 gas is colourless, odorless, do not fire, nontoxic inert gas, there is good insulation property and arc extinction performance, its arc extinguishing energy force rate air is high 100 times, sulfur hexafluoride breaker is the SF6 gas utilizing high pressure, high pressure draught is formed to blow out electric arc between the spout and contact of arc control device, the SF6 gas pressure of arc blow-out is up to 1 ~ 1.5MPa, sulfur hexafluoride breaker volume is little, dielectric strength is high, arc extinction performance is good, time between overhauls(TBO) length and energy forming closed combined electrical apparatus, existing sulfur hexafluoride breaker case lid sealing is keep original design mostly.Casing, after charging sulfur hexafluoride gas, due to common sealing means, can allow the sulphur hexafluoride of box house have the leakage of part, more or less can affect the content of sulfur hexafluoride gas in casing, thus affect the work of circuit breaker.
Utility model content:
Technical problem to be solved in the utility model is the defect overcoming prior art, provides a kind of structure simple, the Standard type circuit breaker case lid seal valve that sealing is strong.
Technical problem to be solved in the utility model realizes by the following technical solutions.
A kind of Standard type circuit breaker case lid seal valve, be arranged on box of the circuit breaker to cover, it is characterized in that: described case lid is provided with a screw hole and rubber cushion hole, described screw hole is positioned at upper end, rubber cushion hole and screw hole is connected with rubber cushion hole, described screw hole is cylindrical shape, described rubber cushion hole is set to the top section radius truncated cone-shaped large compared with lower section radius, a screw is provided with in described screw hole, in in the middle part of described screw control and inside is provided with a bolt, described stud base passes screw and is connected with a rubber blanket.
Described rubber blanket and bolt are that dismountable combination mounting means is connected, and are convenient to change dismounting rubber blanket, more convenient and practical.
Described rubber blanket adopts natural man-made rubber to make, and elasticity is stronger, and telescopicing performance is good, and useful life is more of a specified duration, and sealing effectiveness is stronger.
The utility model is in use: be first arranged in screw hole by direct for screw spiral, after fixing, then control bolt, by rubber blanket to pressing down, until after rubber blanket is close to rubber cushion hole inwall, can ensure sealing property.
The beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, the problem of leakage is produced after effectively preventing filling sulphur hexafluoride, both atmospheric accuracy in case had been solved, again save cost, for company has saved trouble and worry in production in enormous quantities, in use also more convenient.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Embodiment:
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1, a kind of Standard type circuit breaker case lid seal valve, be arranged on circuit breaker case lid 1, case lid 1 is provided with a screw hole 2 and rubber cushion hole 3, screw hole 2 is positioned at upper end, rubber cushion hole 3 and screw hole 2 is connected with rubber cushion hole 3, screw hole 2 is cylindrical shape, rubber cushion hole 3 is set to the top section radius truncated cone-shaped large compared with lower section radius, a screw 4 is provided with in screw hole 2, in in the middle part of screw 4 control and inside is provided with a bolt 5, pass screw 4 bottom bolt 5 and be connected with a rubber blanket 6, after arranging like this, first direct for screw 4 spiral is arranged in screw hole 2, after fixing, then bolt 5 is controlled, by rubber blanket 6 to pressing down, until after rubber blanket 6 is close to rubber cushion hole 3 inwall, sealing property can be ensured, rubber blanket 6 is connected for dismountable combination mounting means with bolt 5, be convenient to change dismounting rubber blanket 6, more convenient and practical, rubber blanket 6 adopts natural man-made rubber to make, elasticity is stronger, telescopicing performance is good, useful life is more of a specified duration, sealing effectiveness is stronger.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a Standard type circuit breaker case lid seal valve, be arranged on box of the circuit breaker to cover, it is characterized in that: described case lid is provided with a screw hole and rubber cushion hole, described screw hole is positioned at upper end, rubber cushion hole and screw hole is connected with rubber cushion hole, described screw hole is cylindrical shape, described rubber cushion hole is set to the top section radius truncated cone-shaped large compared with lower section radius, a screw is provided with in described screw hole, in in the middle part of described screw control and inside is provided with a bolt, described stud base passes screw and is connected with a rubber blanket.
2. a kind of Standard type circuit breaker case lid seal valve according to claim 1, is characterized in that: described rubber blanket and bolt are that dismountable combination mounting means is connected.
3. a kind of Standard type circuit breaker case lid seal valve according to claim 1, is characterized in that: described rubber blanket adopts natural man-made rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708393.7U CN204289231U (en) | 2014-11-21 | 2014-11-21 | A kind of Standard type circuit breaker case lid seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708393.7U CN204289231U (en) | 2014-11-21 | 2014-11-21 | A kind of Standard type circuit breaker case lid seal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289231U true CN204289231U (en) | 2015-04-22 |
Family
ID=52872365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420708393.7U Expired - Fee Related CN204289231U (en) | 2014-11-21 | 2014-11-21 | A kind of Standard type circuit breaker case lid seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289231U (en) |
-
2014
- 2014-11-21 CN CN201420708393.7U patent/CN204289231U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20211121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |