CN102289046B - Optical fiber cavity-penetrating access device for explosion-proof electrical appliance - Google Patents
Optical fiber cavity-penetrating access device for explosion-proof electrical appliance Download PDFInfo
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- CN102289046B CN102289046B CN 201110267321 CN201110267321A CN102289046B CN 102289046 B CN102289046 B CN 102289046B CN 201110267321 CN201110267321 CN 201110267321 CN 201110267321 A CN201110267321 A CN 201110267321A CN 102289046 B CN102289046 B CN 102289046B
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Abstract
The invention provides an optical fiber cavity-penetrating terminal for an explosion-proof cavity. In the invention, an optical fiber jumper, namely a double-ended stripping optical cable (9), is additionally arranged on a seven-core or nine-core cavity-penetrating wiring terminal which is popular in the explosion-proof cavity; namely, a baffle (1), a nut (3), an anti-return screw (4), a double-ended stripping cable (7), an epoxy adhesive (8) and a fire-retardant communication optical cable (9) for a coal mine are provided simultaneously, wherein the double-ended stripping cable (7) and the fire-retardant communication optical cable (9) for the coal mine penetrate through the center of a cavity-penetrating wiring terminal (2), the baffle (1) is arranged at the inner part of one end of the cavity-penetrating wiring terminal, a fixed anti-return screw (4) is arranged on the nut (3), the double-ended stripping cable is uniformly distributed around the fire-retardant communication optical cable for the coal mine, and optical cable stripping jackets are arranged at two ends of the cavity-penetrating wiring terminal. Explosion propagation and explosion loss do not exist during the use of the optical fiber cavity-penetrating terminal; and the transmission of an electric signal and an optical communication signal is satisfied as a cavity-penetrating lead wire and the optical fiber jumper are reserved.
Description
Technical field
The present invention relates to the component of the transmission of light signal in the transmission of explosion-proof chamber signal, need to use explosion-proof chamber to wear with optical fiber the connection terminal that the chamber terminal replaces being used in original coal mine flame-proof type electrical equipment control, monitoring, interlocking, signal transmission use.
Background technology
In the colliery power-supply unit that development grows, more and more outstanding its unrivaled advantage of the transmission of optical communication signal.For in the explosion-proof chamber that light signal can easily be introduced coal mine flame-proof type power-supply unit by substitute mode and do not change the explosion-proof performance of original flame proof cavity.Wear the problem in chamber therefore add optical patchcord on the design basis that seven cores that generally use or nine cores are worn the chamber connection terminal in original flame proof cavity at explosion-proof chamber to satisfy optical signal transmission.
Summary of the invention
The present invention seeks to: in order to satisfy the transmission of light signal in explosion-proof chamber signal transmission, proposing a kind ofly needs to use explosion-proof chamber to wear the chamber terminal with optical fiber to replace in original coal mine flame-proof type equipment for seven cores or the nine core connection terminals of the electric signal transmissions such as control, monitoring, interlocking, transmission and satisfy optical signal transmission.
Explosion-proof chamber is worn the chamber terminal with optical fiber, adds optical patchcord on the basis that seven cores that generally use or nine cores are worn the chamber connection terminal in existing flame proof cavity: namely be provided with plate washer; Nut; Anti-backing screw; Optical fiber pigtail; Common cable; Epoxy adhesive; Fire resistant optical communication cable for coal mine; The optical cable baring sheath.Wherein optical fiber pigtail 6 and fire resistant optical communication cable for coal mine 9 pass from wearing chamber connection terminal 2 central authorities, an end of wearing the chamber connection terminal is provided with that plate washer 1, the other end are provided with that screw thread is connected with nut 3, the Anti-backing screw 4 after fixing is arranged on nut 3, double end is opened stripping cable 7 evenly around optical fiber pigtail 6 and fire resistant optical communication cable for coal mine 9 and pass from wearing in chamber connection terminal 2, adopts epoxy adhesive 8 to fill to pass wearing in chamber connection terminal 2 of fire resistant optical communication cable 9.Optical cable baring sheath 10 is contained in two ends of wearing the chamber connection terminal, namely is provided with optical cable baring sheath 10 and is used for opening the protection of shelling head after fire resistant optical communication cable 9 is opened stripping.
The present invention can easily introduce light signal in the explosion-proof chamber of coal mine flame-proof type power-supply unit and not change the explosion-proof performance of original flame proof cavity by substitute mode.Wear the problem in chamber therefore add optical patchcord on the design basis that seven cores that generally use or nine cores are worn the chamber connection terminal in original flame proof cavity at explosion-proof chamber to satisfy optical signal transmission.
Inner original H62 electric conductor is replaced with that dielectric strength is higher, cross-sectional area of conductor is long-pending is 1mm
2Multicore water strand flexible circuit conductor.Add simultaneously needed coal mine flame-retardant type optical patchcord.Conductor length can be made according to the actual conditions adjustment of different fields of employment.By the transmission that chamber wire, optical patchcord have satisfied electric signal and optical communication signal of wearing of reserving; Satisfied after epoxy resin adhesive solidifies and worn the fixing of chamber wire, optical patchcord and put slippage performance and explosion transfer performance; Explosion-proof chamber is worn the chamber terminal with optical fiber and is satisfied the transmission demand that flame-proof switch equipment light signal is worn the chamber fully.Can need to realize the occasion of optical communication signal transfer functions in flame-proof switch equipment.
The invention has the beneficial effects as follows: due to the explosion-proof performance that does not change original explosion-proof chamber and wear the chamber terminal, in use do not have propagation of explosion, lose the matters of principle such as quick-fried; The transmission that chamber wire, optical patchcord have satisfied electric signal and optical communication signal of wearing by reserving simultaneously; Satisfied after epoxy resin adhesive solidifies and worn the fixing of chamber wire, optical patchcord and put slippage performance and explosion transfer performance; Explosion-proof chamber is worn the chamber terminal with optical fiber and is satisfied the transmission demand that flame-proof switch equipment light signal is worn the chamber fully.The occasion that can need to realize the optical communication signal transfer functions in flame-proof switch equipment substitutes original chamber connection terminal use of wearing fully.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the present invention wears chamber terminal sectional view.
1, plate washer; 2, wear the chamber terminal; 3, nut; 4, Anti-backing screw; 5, optical fiber SC plug; 6, optical fiber pigtail; 7, double end is opened the stripping cable; 8, epoxy adhesive; 9, fire resistant optical communication cable for coal mine; 10, optical cable baring sheath.
Embodiment
In the colliery power-supply unit that development enlarges, more and more outstanding its unrivaled advantage of the transmission of optical communication signal.For in the explosion-proof chamber that light signal can easily be introduced coal mine flame-proof type power-supply unit by substitute mode and do not change the explosion-proof performance of original flame proof cavity.Wear the problem in chamber therefore add optical patchcord on the design basis that seven cores that generally use or nine cores are worn the chamber connection terminal in original flame proof cavity at explosion-proof chamber to satisfy optical signal transmission.
1, structure: optical fiber wear the chamber terminal by: wear that chamber terminal, plate washer, nut, Anti-backing screw, epoxy adhesive, double end are opened the stripping fire resistant optical communication cable for coal mine, common twisted pair conductors forms.
A) wear the chamber terminal: machining forms.It is identical with flame proof position diameter, the tolerance of 7 cores, 9 core terminals that material is brass (H62) position that is used for wearing the chamber, meets the middle related request of national explosion-proof criteria " GB3836-2010 1 ~ 4 " Electric Equipment in Explosive Gas Atmosphere " " fully; Its main body outside meets installation, flame proof, fastening etc. requires the inner hollow tubular structure that is, preprocessing baffle plate that screw thread and anti-back groove are installed; One end is the mounting limit step, and the other end is for installing fastening external thread.
B) baffle plate: machining forms.Material is nylon rod or plate.The optical cable of installing as required, the quantity of cable, specification processing through hole, arrangement is with the surrounding of evenly arranging of n-conductor cable n in optical cable.The peripheral diameter machining screw is worn terminal inside, chamber for being installed to.Anti-backing screw 4 is arranged on nut 3.Anti-backing screw 4 is the thinner screws of diameter, and piercing the interior nut 3 that can make of nut 3 can't turn.
C) nut: machining forms.Material is that brass (H62) is for fastening, the anti-back of wearing the chamber terminal.External process is useful on annular knurl anti-skidding when fastening, inner processing be used for fastening with screw thread with wear chamber terminal binding thread and coordinate fastening.
D) double end is opened the stripping fire resistant optical communication cable for coal mine: adopt the relevant model that the producer of peace mark use certificate in the term of validity is arranged.General single mode " MGTS " fire resistant optical communication cable for coal mine with armouring protection that adopts.Optical cable needs double end to open to shell and be processed as the SC plug.In order to prevent the optical cable slippage phenomenon occurring after with the epoxy resin adhesive sealing, the position crust that needs optical cable to be penetrated the chamber terminal before installation is removed, and exposes armour protective layer.Removing length must not be greater than wearing 2/3rds of chamber terminal length.
E) general twisted-pair power cable cable: common insulating soft wire, for the electric signal transmission of the relevant device that relies on electric signal transmission.Mainly to occur as standby functions in wearing the chamber terminal.
F) epoxy resin adhesive: epoxy resin.As wearing the chamber terminal after before installation, each assembly is completed placement, each assembly is carried out the can sealing.Each assembly is combined into one, not slippage, not loosening.
G) optical cable baring sheath: be used for opening the protection of shelling head after optical cable baring, play protection against the tide, the effect of waterproof.
Optical fiber SC plug: be used for the connection of optical-fibre communications equipment, the SC plug can be arranged, ST plug etc.Select according to different connected modes.
A) and H62(brass that easily process strong with plasticity) utilization is machined into the profile workpiece that satisfies requirement of explosion proof, and its diameter can be according to actual requirement of explosion proof processing.(its physical strength, machining precision will higher than original seven cores or nine core binding post DMC materials).
B) inner original H62 electric conductor is replaced with that dielectric strength is higher, cross-sectional area of conductor is long-pending is 1mm
2Multicore water strand flexible circuit conductor.Add simultaneously needed coal mine flame-retardant type optical patchcord.Conductor length can be made according to the actual conditions adjustment of different fields of employment.
C) with workpiece and wire by technical requirement arrange fix after, use the good epoxy resin adhesive of proportioning to carry out sealing to the gap between wire, optical patchcord and workpiece, sealing thickness should surpass 3/4 of thickness of workpiece, must not overflow workpiece.
H) the present invention substitutes and to be used in original electric signal transmission in the coal mining explosion-proof electrical device wearing the chamber terminal between explosion-proof chamber.Original chamber terminal of wearing has 7 cores and 9 core equal-specifications.
Claims (2)
1. explosion-proof chamber is worn the chamber terminal with optical fiber, it is characterized in that in the flame proof cavity adding optical patchcord on basis that seven cores that generally use or nine cores wear the chamber connection terminal is the fire resistant optical communication cable for coal mine (9) that double end is opened stripping, namely be provided with simultaneously plate washer (1), nut (3), Anti-backing screw (4), double end and open stripping cable (7), epoxy adhesive (8), fire resistant optical communication cable for coal mine (9); Wherein double end is opened stripping cable (7) and fire resistant optical communication cable for coal mine (9) and is passed from wearing chamber connection terminal (2) central authorities, the one end inside of wearing the chamber connection terminal is provided with that plate washer (1), other end outside is provided with that screw thread is connected with nut (3), the Anti-backing screw (4) after fixing is arranged on nut (3), double end open stripping cable (7) be uniformly distributed in fire resistant optical communication cable for coal mine (9) around, adopt epoxy adhesive (8) to fill and wear chamber connection terminal (2) remaining space inside; The optical cable baring sheath is contained in two ends of wearing the chamber connection terminal.
2. explosion-proof chamber according to claim 1 is worn the chamber terminal with optical fiber, and it is characterized in that has Anti-backing screw (4) on nut (3), and Anti-backing screw (4) is the thinner screw of diameter, pierces in nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267321 CN102289046B (en) | 2011-09-09 | 2011-09-09 | Optical fiber cavity-penetrating access device for explosion-proof electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267321 CN102289046B (en) | 2011-09-09 | 2011-09-09 | Optical fiber cavity-penetrating access device for explosion-proof electrical appliance |
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| Publication Number | Publication Date |
|---|---|
| CN102289046A CN102289046A (en) | 2011-12-21 |
| CN102289046B true CN102289046B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110267321 Active CN102289046B (en) | 2011-09-09 | 2011-09-09 | Optical fiber cavity-penetrating access device for explosion-proof electrical appliance |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135178B (en) * | 2013-03-15 | 2014-11-19 | 中国工程物理研究院核物理与化学研究所 | Anti-compression optical fiber air-tight-seal interconnecting box body |
| CN109932786B (en) * | 2018-04-28 | 2024-05-14 | 讯达康通讯设备(惠州)有限公司 | Duplex four-core connector plug, adapter and connector assembly |
| CN111146624B (en) * | 2020-01-15 | 2024-07-09 | 上海翔洲电气科技有限公司 | Mining flameproof optical fiber composite high-low voltage cable connector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499636A (en) * | 2008-01-28 | 2009-08-05 | 普拉德研究及开发股份有限公司 | Electro-optical cable head for oil well application |
| CN101750685A (en) * | 2008-12-08 | 2010-06-23 | 赵振海 | Combined using method for optical cable and mine cable and mine cable as fiber-optical communication |
| CN102013791A (en) * | 2010-11-09 | 2011-04-13 | 焦作华飞电子电器股份有限公司 | Optical fiber wiring terminal component used for explosion-proof frequency converter |
-
2011
- 2011-09-09 CN CN 201110267321 patent/CN102289046B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499636A (en) * | 2008-01-28 | 2009-08-05 | 普拉德研究及开发股份有限公司 | Electro-optical cable head for oil well application |
| CN101750685A (en) * | 2008-12-08 | 2010-06-23 | 赵振海 | Combined using method for optical cable and mine cable and mine cable as fiber-optical communication |
| CN102013791A (en) * | 2010-11-09 | 2011-04-13 | 焦作华飞电子电器股份有限公司 | Optical fiber wiring terminal component used for explosion-proof frequency converter |
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| CN102289046A (en) | 2011-12-21 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Manqing Inventor after: Liu Chunming Inventor after: Guo Wei Inventor after: Li Feng Inventor before: Huang Manqing Inventor before: Guo Wei Inventor before: Li Feng |
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Free format text: CORRECT: INVENTOR; FROM: HUANG MANQING GUO WEI LI FENG TO: HUANG MANQING LIU CHUNMING GUO WEI LI FENG |
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