CN104659730A - Explosion proof type cable entry mechanism - Google Patents
Explosion proof type cable entry mechanism Download PDFInfo
- Publication number
- CN104659730A CN104659730A CN201310605776.1A CN201310605776A CN104659730A CN 104659730 A CN104659730 A CN 104659730A CN 201310605776 A CN201310605776 A CN 201310605776A CN 104659730 A CN104659730 A CN 104659730A
- Authority
- CN
- China
- Prior art keywords
- lead
- proof type
- type cable
- cable
- wire chamber
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/013—Sealing means for cable inlets
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses an explosion proof type cable entry mechanism. The explosion proof type cable entry mechanism comprises a compression nut, a metallic gasket, a large rubber seal ring, a transition lead-wire cavity, a small seal ring, a lead-wire cavity and a cable, wherein the compression nut and the transition lead-wire cavity are sequentially screwed into the lead-wire cavity, and the large rubber seal ring and the small seal ring are compressed to be radially expanded, so that the cable can be locked tightly; the entry device adopts two-parts double sealing and threaded compression to fix the cable, so as to play double insurance effects of sealing and fixing; the level of protection can be up to IP66, and the explosion proof type cable entry mechanism is good in sealing and anti-loose effect.
Description
Technical field
The present invention relates to a kind of explosion-proof type cable retraction mechanism.
Background technology
Most of flame-proof mine electric equipment of current production, its cable entry mode adopts press disc type cable entry screw to be connected with base by platen mostly, regulate the thrust of platen to oppress sealing ring with screw and carry out hermetically-sealed cable, this method structure relative complex, there is the benefit that intensity is high, the sealing being suitable for high-current cable is introduced, and adopt inconvenient in structural design in this way, and cost is higher for more tiny signal cable.After taking apart, will be scattered on the ground, be not a modular component.
Summary of the invention
The present invention, for solving the deficiencies in the prior art, provides a kind of explosion-proof type cable retraction mechanism.
The technical solution used in the present invention is: a kind of explosion-proof type cable retraction mechanism, comprises clamp nut 1, metallic gasket 2, large rubber seal 3, transition lead wire chamber 4, small sealing ring 5, lead-in wire chamber 6 and cable 7; Clamp nut 1 and transition lead wire chamber 4 are threaded into lead-in wire chamber 6 successively, large rubber seal 3 and small sealing ring 5 are compressed, radial expansion, thus are locked by cable 7.
Flame proof thread is established in most outer ring, end, lead-in wire chamber 6, and hexagon is made in the outer ring of middle part.Step is made in inside.Screw thread is established, at reservation one end, bottom unthreaded hole at the endoporus of the other end.
Length requirement after large its axial compression of rubber seal 3 meets the minimum length requirement of each flame proof grade flame flash-back in GB3836.2-2000, meets the requirement of different temperatures group.
The invention has the beneficial effects as follows: the present invention devises a kind of explosion-proof type cable retraction mechanism, reasonable in design.Degree of protection can reach IP66, and sealing locknut is respond well.Have easy for installation, quick, barrier propterty is excellent, can apply for every advantages such as certification of conformity of an instrument for explosive atmosphere separately.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1---clamp nut, 2---metallic gasket, 3---large rubber seal, 4---transition lead wire chamber,
5---small sealing ring, 6---lead-in wire chamber, 7---cables
Embodiment
As shown in Figure 1, the invention discloses a kind of explosion-proof type cable retraction mechanism, comprise clamp nut 1, metallic gasket 2, large rubber seal 3, transition lead wire chamber 4, small sealing ring 5, lead-in wire chamber 6 and cable 7; Clamp nut 1 and transition lead wire chamber 4 are threaded into lead-in wire chamber 6 successively, large rubber seal 3 and small sealing ring 5 are compressed, radial expansion, thus are locked by cable 7.
Flame proof thread is established in most outer ring, end, lead-in wire chamber 6, and hexagon is made in the outer ring of middle part.Step is made in inside.Screw thread is established, at reservation one end, bottom unthreaded hole at the endoporus of the other end.
Length requirement after large its axial compression of rubber seal 3 meets the minimum length requirement of each flame proof grade flame flash-back in GB3836.2-2000, meets the requirement of different temperatures group.The above; only embodiments of the invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection range of technical solution of the present invention.
Claims (3)
1. an explosion-proof type cable retraction mechanism, is characterized in that: comprise clamp nut (1), metallic gasket (2), large rubber seal (3), transition lead wire chamber (4), small sealing ring (5), lead-in wire chamber (6) and cable (7); Clamp nut (1) and transition lead wire chamber (4) are threaded into lead-in wire chamber (6) successively, by large rubber seal (3) and small sealing ring (5) compression, and radial expansion, thus cable (7) is locked.
2. a kind of explosion-proof type cable retraction mechanism according to claim 1, is characterized in that: flame proof thread is established in the most outer ring, end of lead-in wire chamber (6), and hexagon is made in the outer ring of middle part.Step is made in inside.Screw thread is established, at reservation one end, bottom unthreaded hole at the endoporus of the other end.
3. a kind of explosion-proof type cable retraction mechanism according to claim 1, it is characterized in that: the length requirement after large rubber seal (3) its axial compression meets the minimum length requirement of each flame proof grade flame flash-back in GB3836.2-2000, meets the requirement of different temperatures group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605776.1A CN104659730A (en) | 2013-11-21 | 2013-11-21 | Explosion proof type cable entry mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605776.1A CN104659730A (en) | 2013-11-21 | 2013-11-21 | Explosion proof type cable entry mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104659730A true CN104659730A (en) | 2015-05-27 |
Family
ID=53250562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310605776.1A Pending CN104659730A (en) | 2013-11-21 | 2013-11-21 | Explosion proof type cable entry mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104659730A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847251A (en) * | 2017-02-27 | 2017-06-13 | 浙江佳力防爆专用车辆技术有限公司 | explosion-proof type electric horn |
| CN106961088A (en) * | 2017-05-24 | 2017-07-18 | 浙江尚进电力科技有限公司 | A kind of cable duct plugging device |
| CN109217545A (en) * | 2017-06-29 | 2019-01-15 | 中国石油天然气股份有限公司 | A kind of latent oil magneto cable pigtail static seal structure |
| CN109510157A (en) * | 2018-11-21 | 2019-03-22 | 中海油天津化工研究设计院有限公司 | A kind of anti-explosion cable introducing device |
-
2013
- 2013-11-21 CN CN201310605776.1A patent/CN104659730A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847251A (en) * | 2017-02-27 | 2017-06-13 | 浙江佳力防爆专用车辆技术有限公司 | explosion-proof type electric horn |
| CN106961088A (en) * | 2017-05-24 | 2017-07-18 | 浙江尚进电力科技有限公司 | A kind of cable duct plugging device |
| CN109217545A (en) * | 2017-06-29 | 2019-01-15 | 中国石油天然气股份有限公司 | A kind of latent oil magneto cable pigtail static seal structure |
| CN109510157A (en) * | 2018-11-21 | 2019-03-22 | 中海油天津化工研究设计院有限公司 | A kind of anti-explosion cable introducing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |