CN103353017A - Pressure-resistant anti-explosion mechanism of valve positioner - Google Patents
Pressure-resistant anti-explosion mechanism of valve positioner Download PDFInfo
- Publication number
- CN103353017A CN103353017A CN2013103178389A CN201310317838A CN103353017A CN 103353017 A CN103353017 A CN 103353017A CN 2013103178389 A CN2013103178389 A CN 2013103178389A CN 201310317838 A CN201310317838 A CN 201310317838A CN 103353017 A CN103353017 A CN 103353017A
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- CN
- China
- Prior art keywords
- sleeve pipe
- valve positioner
- explosion mechanism
- casting nozzle
- pressure
- 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.)
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Abstract
The invention relates to a pressure-resistant anti-explosion mechanism of a valve positioner. The pressure-resistant anti-explosion mechanism of the valve positioner is sealed on the outlet hole of the outer shell of the valve positioner, an electric wire is led out of the outlet hole and the pressure-resistant anti-explosion mechanism, the pressure-resistant anti-explosion mechanism comprises a sleeve pipe connected with the outer shell, a casting nozzle communicated with the sleeve pipe and fixedly formed in the side wall of the sleeve pipe and sealing agents filled in the casting nozzle, and the opening of the casting nozzle extends obliquely and upwards. The electric wire is led out of the sleeve pipe, the sealing agents are poured into the sleeve pipe from the casting nozzle, the sealing agents are made to fill the clearance between the electric wire and the sleeve pipe, and the good sealing effect is achieved.
Description
Technical field
The present invention relates to a kind of withstand voltage anti-explosion mechanism of valve positioner.
Background technique
The blasting resistance structure of existing valve positioner is comprised of the sleeve pipe in the shell that is located in valve positioner and the sealant tape that is wrapped in the electric wire periphery, sealant tape is equivalent to packing, be filled between electric wire and the sleeve pipe, but still can there be the slit between the sealant tape of each bar electric wire, sealing effect is poor, causes explosion-proof performance not high.
Summary of the invention
The withstand voltage anti-explosion mechanism that the purpose of this invention is to provide a kind of valve positioner of better tightness.
For solving the problems of the technologies described above, the present invention adopts following technological scheme: a kind of withstand voltage anti-explosion mechanism of valve positioner, it is seal-installed on the wire outlet hole of shell of valve positioner, electric wire is by drawing in wire outlet hole and the withstand voltage anti-explosion mechanism, it comprises the sleeve pipe that is connected with described shell, is connected with sleeve pipe and is fixed in casting nozzle on the sleeve pipe sidewall, is filled in the sealing compound in the described casting nozzle, and described casting nozzle opening extends obliquely.
Optimize, also be equipped with mouthpiece in the described sleeve pipe, described mouthpiece is set on the described electric wire.
Beneficial effect of the present invention is: the present invention draws electric wire from sleeve pipe, sealing compound is poured into the sleeve pipe from casting nozzle again, makes sealing compound fill up slit between electric wire and the sleeve pipe, has reached good sealing effect.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention;
In the accompanying drawing: 1, shell; 2, sleeve pipe; 3, casting nozzle; 4, sealing compound; 5, mouthpiece; 6, electric wire.
Embodiment
Below in conjunction with embodiment shown in the drawings the present invention is made following detailed description:
As shown in Figure 1, the withstand voltage anti-explosion mechanism of valve positioner, it is seal-installed on the wire outlet hole of shell 1 of valve positioner, electric wire 6 is by drawing in wire outlet hole and the withstand voltage anti-explosion mechanism, it comprises the sleeve pipe 2 that is connected with shell 1, is connected with sleeve pipe 2 and is fixed in casting nozzle 3 on sleeve pipe 2 sidewalls, is filled in the sealing compound 4 in the casting nozzle 3, and casting nozzle 3 openings extend obliquely.For improving sealing effect, in sleeve pipe 2, also be equipped with mouthpiece 5, mouthpiece 5 is set on the electric wire 6.Sleeve pipe 2 and casting nozzle are one-body molded.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. the withstand voltage anti-explosion mechanism of a valve positioner, it is seal-installed on the wire outlet hole of shell (1) of valve positioner, electric wire (6) is by drawing in wire outlet hole and the withstand voltage anti-explosion mechanism, it is characterized in that: it comprises the sleeve pipe (2) that is connected with described shell (1), is connected with sleeve pipe (2) and is fixed in casting nozzle (3) on sleeve pipe (2) sidewall, is filled in the sealing compound (4) in the described casting nozzle (3), and described casting nozzle (3) opening extends obliquely.
2. the withstand voltage anti-explosion mechanism of valve positioner according to claim 1, it is characterized in that: also be equipped with mouthpiece (5) in the described sleeve pipe (2), described mouthpiece (5) is set on the described electric wire (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103178389A CN103353017A (en) | 2013-07-26 | 2013-07-26 | Pressure-resistant anti-explosion mechanism of valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103178389A CN103353017A (en) | 2013-07-26 | 2013-07-26 | Pressure-resistant anti-explosion mechanism of valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103353017A true CN103353017A (en) | 2013-10-16 |
Family
ID=49309414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103178389A Pending CN103353017A (en) | 2013-07-26 | 2013-07-26 | Pressure-resistant anti-explosion mechanism of valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103353017A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104548A (en) * | 1985-07-19 | 1987-08-05 | 雷伊化学公司 | Tubular article |
| JPH08303609A (en) * | 1995-05-12 | 1996-11-22 | Ntc Kogyo Kk | Water stopping plug with pressure reducing valve |
| CN202121285U (en) * | 2011-03-11 | 2012-01-18 | 孙佰林 | Protection device of cable connector |
| CN202220928U (en) * | 2011-09-06 | 2012-05-16 | 四川省达州钢铁集团有限责任公司 | Connection structure for valve body and bridge pipe |
| CN202363865U (en) * | 2011-11-30 | 2012-08-01 | 江苏安靠智能输电工程科技股份有限公司 | Insulation protection shell for cable accessory |
-
2013
- 2013-07-26 CN CN2013103178389A patent/CN103353017A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104548A (en) * | 1985-07-19 | 1987-08-05 | 雷伊化学公司 | Tubular article |
| JPH08303609A (en) * | 1995-05-12 | 1996-11-22 | Ntc Kogyo Kk | Water stopping plug with pressure reducing valve |
| CN202121285U (en) * | 2011-03-11 | 2012-01-18 | 孙佰林 | Protection device of cable connector |
| CN202220928U (en) * | 2011-09-06 | 2012-05-16 | 四川省达州钢铁集团有限责任公司 | Connection structure for valve body and bridge pipe |
| CN202363865U (en) * | 2011-11-30 | 2012-08-01 | 江苏安靠智能输电工程科技股份有限公司 | Insulation protection shell for cable accessory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131016 |