CN202215850U - Explosion-proof wire exceeding assembly - Google Patents
Explosion-proof wire exceeding assembly Download PDFInfo
- Publication number
- CN202215850U CN202215850U CN2011203419235U CN201120341923U CN202215850U CN 202215850 U CN202215850 U CN 202215850U CN 2011203419235 U CN2011203419235 U CN 2011203419235U CN 201120341923 U CN201120341923 U CN 201120341923U CN 202215850 U CN202215850 U CN 202215850U
- Authority
- CN
- China
- Prior art keywords
- explosion
- line component
- proof
- boring portion
- lead
- 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
The utility model provides an explosion-proof wire exceeding assembly which is formed into a cylinder with a hollow interior, wherein external threads are formed on the outer surface, and annular concave grooves are formed in the hollow interior. With the adoption of the explosion-proof wire exceeding assembly, a motor cavity and an electrical cavity of an actuator can be effectively separated by a simple structure, thereby achieving low lost and wide application range.
Description
Technical field
The utility model relates to a kind of explosion-proof line component of using, and relates in particular to the explosion-proof line component of using that in explosion-proof final controlling element, is used to isolate electric chamber and motor cavity.
Background technique
The explosion-proof type final controlling element has the place of explosion risk to use through the factory etc. of the mining industry of being everlasting, chemical plant, refinery, Paint Factory, purification plant or storage or loading and unloading inflammable gas, liquid and solid.
Explosion-proof mentality of designing roughly has following two kinds in final controlling element.That is, the circuit that possibly produce spark separates with inflammable gas on structure, perhaps consider from circuit design explosion-proof, with circuit short circuit, cut-off and misoperation down the spark of generation be limited under the ignition energy of inflammable gas.
First kind of thinking specifically can adopt method oil-filled, that fill non-flammable gases or isolate motor cavity and electric chamber.In the method for isolating motor cavity and electric chamber, generally adopt valve system to isolate at present.
Yet, owing to also need intert lead between the electric chamber of final controlling element and the motor cavity, so inflammable gas enters into electric chamber through the gap between the lead easily.Therefore, there is the problem that is difficult to guarantee explosion-proof quality.
The model utility content
The purpose of the utility model be to provide a kind of simple in structure, implement the explosion-proof line component of using comparatively convenient, that cost is low.
The explosion-proof line component of using that the utility model provided forms inside and is hollow cylindric, and outer surface is formed with outside thread, is formed with annular recess in the boring portion.
Explosion-proof the using in the line component that the utility model provided, said annular recess forms a plurality of, and interval intended distance between each annular recess.
Explosion-proof the using in the line component that the utility model provided, said boring portion forms interts the passage of a plurality of leads, between boring portion and lead, pours into the resin that is useful on sealing.
Explosion-proof the using in the line component that the utility model provided, the said length of crossing line component is 30mm, and outside thread joggle number is 23 buttons, and the accuracy of thread grade is 6H.
Explosion-proof the using in the line component that the utility model provided, insulated hull is peelled off in each the part of said a plurality of leads that is punctured into said boring portion.
According to the explosion-proof line component of using that the utility model provided, can be with simple the structure motor cavity and the electric chamber of isolated execution device effectively, low, the applied range of cost.
Description of drawings
Fig. 1 is the explosion-proof integrally-built stereogram of using line component of expression.
Fig. 2 is the explosion-proof sectional view of using line component along the A-A line intercepting of Fig. 1 of expression.
Fig. 3 is interting the explosion-proof sectional view of using the bonding state of line component and final controlling element main body of lead for expression.
Fig. 4 is the explosion-proof sectional view of using line component along the B-B line intercepting of Fig. 3 of expression.
Embodiment
Below, specify the embodiment of the utility model with reference to accompanying drawing.
Fig. 1 is the explosion-proof integrally-built stereogram of using line component of expression, and Fig. 2 is the explosion-proof sectional view of using line component along the A-A line intercepting of Fig. 1 of expression.
Fig. 3 is interting the explosion-proof sectional view of using the bonding state of line component and final controlling element main body of lead for expression.
In the drawings, cross line component 1 and be incorporated into the final controlling element main body, thereby prevent that the inflammable gas in the motor cavity from flowing into electric chamber through the outer surface of crossing line component 1 through outside thread that is formed on main part 2 and the engagement that is formed on the internal thread of final controlling element main body 6.In the present embodiment, the length of crossing line component 1 is 30mm, crosses the screw-thread fit that realizes M20 * 1.5 between line component 1 and the main body, and thread engagement button number is 23 buttons, and the accuracy of thread grade is 6H.But the utility model is not limited thereto, and the outside thread on the main part 2 of line component 1 can change according to the structure and the size of final controlling element accordingly excessively.It should be noted that owing to cross the reach, joggle number etc. of main part 2 outer surfaces of line component 1 influence the seal degree between motor cavity and the electric chamber, so when designing, need take all factors into consideration.
In order to prevent that inflammable gas from flowing into electric chamber through the boring portion 4 of crossing line component 1, the whole boring portion 4 of crossing line component 1 carries out glue and seals after interspersed lead 7.In the present embodiment, the material of glue envelope can adopt 136AB glue epoxy resin, and the length of glue envelope resin is 30mm.The intermediate portion, back forms two annular projections because the existence of above-mentioned two grooves 5, glue envelope resin are cured, and these two annular projections are blocked by said two grooves 5, thereby the envelope of the glue after can preventing to solidify resin comes off from the boring portion 4 of crossing line component 1.
Here, for enhanced leaktightness property, the regional insulated hull of a part that will be interted in the lead 7 of the boring portion 4 of crossing line component 1 is peelled off.Owing to also have the space between lead and the insulated hull; Therefore the insulated hull of the part of each lead through peelling off the boring portion 4 that was inserted into line component 1, thus can prevent that inflammable gas from entering in the electric chamber from the insulated hull of lead and the space between the lead.In the present embodiment, peel off insulated hull about 5mm.Here, it should be noted that, in two leads, peelled off between the part of insulated hull and must have enough resin materials, play the effect of insulation in order to prevent short circuit.In the utility model, lead must adopt high temperature resistant line, damages to avoid in long-time running lead to receive thereupon the temperatures involved that rises.
In addition, as shown in Figure 3, in the present embodiment, also carry out glue envelope (symbol 8 among the figure) at an end of crossing line component, the glue closure material can adopt WS6106, and gluing length of flame proof joint can be 45mm.
Fig. 4 representes the explosion-proof sectional view of using line component along the B-B line intercepting of Fig. 3.In the present embodiment, insert 6 leads, wherein have 4 to be diameter 2mm in the boring portion of crossing line component 14
2Lead, have 2 for diameter 1mm
2Lead.
Here, in the explosion-proof type final controlling element, a plurality of explosion-proof line components of using can be installed.
In sum, the utility model explosion-proof used line component can be applied to various explosion-proof inner chambers need to isolate in the final controlling element of connection, the utility model explosion-proof used the line component principle simple, implement convenient, low, the applied range of cost.
Claims (5)
1. the explosion-proof line component of using is characterized in that, form inside and be hollow cylindric, and outer surface is formed with outside thread, is formed with annular recess in the boring portion.
2. the explosion-proof line component of using according to claim 1 is characterized in that said annular recess forms a plurality of, and interval intended distance between each annular recess.
3. the explosion-proof line component of using according to claim 1 is characterized in that, said boring portion forms interts the passage of a plurality of leads, between boring portion and lead, encloses the resin that is useful on sealing.
4. the explosion-proof line component of using according to claim 1 is characterized in that, the said length of crossing line component is 30mm, and external thread diameter is 20mm, and pitch is 1.5mm, and outside thread joggle number is 23 buttons, and the accuracy of thread grade is 6H.
5. the explosion-proof line component of using according to claim 2 is characterized in that, insulated hull is peelled off in each the part of said a plurality of leads that is punctured into said boring portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203419235U CN202215850U (en) | 2011-09-13 | 2011-09-13 | Explosion-proof wire exceeding assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203419235U CN202215850U (en) | 2011-09-13 | 2011-09-13 | Explosion-proof wire exceeding assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215850U true CN202215850U (en) | 2012-05-09 |
Family
ID=46015105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203419235U Expired - Fee Related CN202215850U (en) | 2011-09-13 | 2011-09-13 | Explosion-proof wire exceeding assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215850U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344378A (en) * | 2013-08-02 | 2015-02-11 | 深圳市海洋王照明工程有限公司 | Explosion-proof connector |
| CN104712257A (en) * | 2015-03-18 | 2015-06-17 | 四川省科学城久利电子有限责任公司 | Structure capable of allowing multiple wires to pass through small diameter |
| EP3608924A1 (en) * | 2018-08-07 | 2020-02-12 | Yokogawa Electric Corporation | Explosion-proof structure |
-
2011
- 2011-09-13 CN CN2011203419235U patent/CN202215850U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344378A (en) * | 2013-08-02 | 2015-02-11 | 深圳市海洋王照明工程有限公司 | Explosion-proof connector |
| CN104712257A (en) * | 2015-03-18 | 2015-06-17 | 四川省科学城久利电子有限责任公司 | Structure capable of allowing multiple wires to pass through small diameter |
| CN104712257B (en) * | 2015-03-18 | 2017-05-17 | 四川省科学城久利电子有限责任公司 | Structure capable of allowing multiple wires to pass through small diameter |
| EP3608924A1 (en) * | 2018-08-07 | 2020-02-12 | Yokogawa Electric Corporation | Explosion-proof structure |
| CN110829684A (en) * | 2018-08-07 | 2020-02-21 | 横河电机株式会社 | Explosion-proof structure |
| US11018485B2 (en) | 2018-08-07 | 2021-05-25 | Yokogawa Electric Corporation | Explosion-proof structure |
| CN110829684B (en) * | 2018-08-07 | 2021-08-13 | 横河电机株式会社 | Explosion-proof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20160913 |