CN203721902U - Flame-proof multi-core through-wall terminal - Google Patents
Flame-proof multi-core through-wall terminal Download PDFInfo
- Publication number
- CN203721902U CN203721902U CN201420025107.7U CN201420025107U CN203721902U CN 203721902 U CN203721902 U CN 203721902U CN 201420025107 U CN201420025107 U CN 201420025107U CN 203721902 U CN203721902 U CN 203721902U
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- flame
- flame proof
- metal shell
- proof
- terminal
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Abstract
Disclosed in the utility model is a flame-proof multi-core through-wall terminal. Fine soft lead wires are used for replacing original conductive copper columns and are casted and sealed in a flame-proof metal housing by an epoxy resin; insulated separation boards are arranged in the middle of the soft lead wires; and sheath tubes are arranged at one ends. Therefore, the secure distance between the soft lead wires is reduced; and the size of the whole terminal is substantially reduced. According to the flame-proof multi-core through-wall terminal, the terminal core number can reach over 30; the size is small; and the flame-proof requirement can be met.
Description
Technical field
The utility model relates to flame-proof electric equipment part field, is specifically related to a kind of flame-proof type multicore terminal through walls.
Background technology
In workplaces such as collieries, owing to having explosion hazard gas and steam, so need to use flame-proof electric equipment.
The explosion-proof principle of flameproof electrical apparatus is: the live part of electric equipment is placed in special shell, this shell has the effect that outside the spark of electric component generation in shell and electric arc and shell, explosive mixture is kept apart, and can bear the blast pressure that the explosive mixture that enters in shell is produced while ignition by the spark of electric equipment in shell, electric arc, and shell is not destroyed; Can prevent shell implode product explosive mixture propagation of explosion outside shell, can not cause the outer explosive mixture burning of shell and blast simultaneously.This special shell is " flameproof enclosure ".The electric equipment with flameproof enclosure is called " flameproof electrical apparatus ".Flameproof electrical apparatus has good flame proof and resistance to quick-fried performance, is widely used in explosive atmosphere workplace.Flame-proof electric equipment will have independently flame proof wiring cavity, and power line or holding wire just need to be used to binding post from the main chamber introducing of explosion-proof chamber flame proof wiring cavity.
Binding post is exactly a kind of accessory product for realizing electrical connection, be exactly generally multiple metallic conduction posts that are arranged on insulating end stroma the inside, on metallic conduction post, be provided with nut and pad for fixing cord, connect wire, more convenient, and needn't use the methods such as welding.And flame proof binding post is compared general binding post, higher in the requirement of the safe distance aspect of enclosure material and conductive pieces.
Along with the development of control technology, now in Electrical Equipments of Coal Mine, control circuit is more and more, so the signal transmission from explosion insulation main cavity to flame proof cavity is also more and more, many has two, a San Shi road signal.
The multipotency of general conventional flame proof binding post is walked 9 road signals, and namely 9 core terminals can not meet the needs of Electrical Equipments of Coal Mine development.If increase core number on the basis of conventional binding post, the volume of binding post can be very huge.
Therefore, design a kind of new flame-proof type Multi-core terminal, can have more core number, small volume, can meet the requirement of flame proof, is this area technical issues that need to address.
Utility model content
The technical problems to be solved in the utility model: design a kind of new flame-proof type Multi-core terminal, can have more core number, and small volume.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of flame-proof type multicore terminal through walls, comprises flame proof metal shell, and described flame proof metal shell is revolution shape, and in the middle of its outer surface, one section is the face of cylinder, and its inside is provided with a cavity; Described cavity is equipped with multiple conducting wires, and the axis of described wire is parallel with the axis of described flame proof metal shell, and described flame proof metal shell radially for being uniformly distributed; Described wire is the flexible conductor with insulated hull, is provided with copper core flame proof section in the middle of it, and described copper core flame proof section is for to peel off insulated hull by wire, and the copper core exposing is cemented in together with scolding tin; Described insulating barrier is set in described copper core flame proof section, and described copper core flame proof section is all coated; One end of described flame proof metal shell is provided with the protecting pipe of the described wire of protection, and one end of described protecting pipe is fixed in the cavity of described flame proof metal shell, and one end is in the outside of described flame proof metal shell; In the cavity of described flame proof metal shell, be cast with epoxy resin, described wire, insulating barrier, protecting pipe and flame proof metal shell are consolidated into an entirety.
Preferably, the length of described copper core flame proof section is 6mm.
Preferably, described wire be RV line or, coaxial line or netting twine.
Preferably, the material of described flame proof metal shell is brass.
Preferably, described flame proof metal shell is also arranged with mounting nuts, and its external cylindrical surface is provided with the external screw thread coordinating with described mounting nuts.
Pass through technique scheme, we provide a kind of new flame-proof type multicore terminal through walls, use thinner flexible conductor to replace original conduction copper column, and flexible conductor is watered and is enclosed in copper flame proof metal shell with epoxy resin, in the middle of flexible conductor, there is insulating barrier, there is protecting pipe one end, and the safe distance between flexible conductor can be reduced, and the volume of whole terminal also reduces greatly.Its beneficial effect is: more than terminal core number can be accomplished 30 cores, volume is little, can meet the requirement of flame proof.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the disclosed a kind of flame-proof type multicore of the utility model embodiment terminal through walls;
Fig. 2 is the vertical view of Fig. 1.
Numeral and the represented corresponding component title of letter in figure:
1. flame proof metal shell 11. face of cylinder 12. external screw thread 2. wire 21. bronze medal core flame proof section 3. insulating barrier 4. protecting pipe 5. epoxy resin 6. mounting nuts 61. backing-up screws.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Principle of the present utility model is: use thinner flexible conductor to replace original conduction copper column, and flexible conductor is watered and is enclosed in copper flame proof metal shell with epoxy resin, in the middle of flexible conductor, there is insulating barrier, there is protecting pipe one end, safe distance between flexible conductor can be reduced, and the volume of whole terminal also reduces greatly.
Embodiment:
As depicted in figs. 1 and 2, a kind of flame-proof type multicore terminal through walls, comprises flame proof metal shell 1, and flame proof metal shell 1 is revolution shape, and in the middle of its outer surface, one section is the face of cylinder 11, and its inside is provided with a cavity; Cavity is equipped with multiple conducting wires 2, and the axis of wire 2 is parallel with the axis of flame proof metal shell 1, and flame proof metal shell 1 radially for being uniformly distributed; Wire is the flexible conductor with insulated hull, is provided with copper core flame proof section 21 in the middle of it, and copper core flame proof section 21 is for to peel off insulated hull by wire, and the copper core exposing is cemented in together with scolding tin; Insulating barrier 3 is set in copper core flame proof section 21, and copper core flame proof section 21 is all coated; One end of flame proof metal shell 1 is provided with the protecting pipe 4 of guardwire 2, and one end of protecting pipe 4 is fixed in the cavity of flame proof metal shell 1, and one end is in the outside of flame proof metal shell 1; In the cavity of flame proof metal shell 1, be cast with epoxy resin 5, wire 2, insulating barrier 3, protecting pipe 4 and flame proof metal shell 1 are consolidated into an entirety.
In the middle of the outer surface of flame proof metal shell 1, there is one section for the face of cylinder 11, the face of cylinder 11 is flameproof joints, the i.e. composition surface to the main chamber of explosion-proof chamber through flame proof wiring cavity, the face of cylinder 11 engages (metope is generally metallic plate, has the hole coordinating with the face of cylinder 11 on metallic plate) with metope
The object that copper core flame proof section 21 is set is, because the copper wire in wire is multiply, between it, there is certain space, it not structure very closely, the material (as gas) of blast can not play the effect of complete flame proof, because can be delivered to even equipment of the main chamber of explosion-proof chamber from flame proof wiring cavity by the space between copper wire.
Due to present control line, what pass through is all weak electric signal, and electric current is all very little, thus use original metallic conduction post mode to there is no need completely, and waste material very much, can use general flexible conductor completely.Flexible conductor is with respect to metallic conduction post, and its sectional area has also reduced some, so the volume of whole terminal can be less.
The effect of insulating barrier 3 is that the copper core flame proof section 21 of peelling off insulated hull is protected, increases safe distance, and this point to one skilled in the art, is all understandable, no longer describes in detail.
The power line with plug of the effect of protecting pipe 4 and general electric equipment is similar from the sheath of device housings extension, can prevent that electric wire from losing.Protecting pipe 4 is tapers, and one end that diameter is larger is fixed in flame proof metal shell 1, can better not lost by guardwire 2 like this, and this is also the common practice of general sheath.
Epoxy resin 5 is poured in flame proof metal shell 1 in the time of liquid condition, when cast, wire is evenly placed in flame proof metal shell 1, after epoxy resin 5 solidifies, whole wire 2, insulating barrier 3, protecting pipe 4 and flame proof metal shell 1 have just been consolidated into an entirety.Epoxy resin 5 had both played the effect of binding agent, played again the effect of insulation.
In the present embodiment, the length of copper core flame proof section 21 is 6mm, and after like this copper wire of the wire of this 6mm being cemented in together with scolding tin, whole wire has not just had space, meets the requirement of flame proof.
In the present embodiment, wire 2 can be RV line (RV line is the abbreviation of polyvinyl chloride insulation soft copper wire, refers generally to control line), can be also coaxial line or netting twine, and which kind of signal what specifically will see transmission is.
In the present embodiment, the material of flame proof metal shell 1 is brass.This is to meet a kind of material of national standard to flame proof material requirements.
In addition, the material of insulating barrier 3 is nylon, and the material of protecting pipe 4 is rubber, and this is also the insulating material often using in some electric equipments, is not described further at this.
For the ease of installing, flame proof metal shell also 1 is arranged with mounting nuts 6, and its external cylindrical surface is provided with the external screw thread 12 coordinating with mounting nuts 6.In addition, for mounting nuts is not because the reasons such as vibrations get loose, mounting nuts is also provided with backing-up screw 61.
In the above-described embodiments, we provide a kind of new flame-proof type multicore terminal through walls, use thinner flexible conductor to replace original conduction copper column, and flexible conductor is watered and is enclosed in copper flame proof metal shell with epoxy resin, in the middle of flexible conductor, there is insulating barrier, there is protecting pipe one end, and the safe distance between flexible conductor can be reduced, and the volume of whole terminal also reduces greatly.Its beneficial effect is: more than terminal core number can be accomplished 30 cores, volume is little, can meet the requirement of flame proof.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (5)
1. a flame-proof type multicore terminal through walls, comprises flame proof metal shell, it is characterized in that, described flame proof metal shell is revolution shape, and in the middle of its outer surface, one section is the face of cylinder, and its inside is provided with a cavity; Described cavity is equipped with multiple conducting wires, and the axis of described wire is parallel with the axis of described flame proof metal shell, and described flame proof metal shell radially for being uniformly distributed; Described wire is the flexible conductor with insulated hull, is provided with copper core flame proof section in the middle of it, and described copper core flame proof section is for to peel off insulated hull by wire, and the copper core exposing is cemented in together with scolding tin; Described insulating barrier is set in described copper core flame proof section, and described copper core flame proof section is all coated; One end of described flame proof metal shell is provided with the protecting pipe of the described wire of protection, and one end of described protecting pipe is fixed in the cavity of described flame proof metal shell, and one end is in the outside of described flame proof metal shell; In the cavity of described flame proof metal shell, be cast with epoxy resin, described wire, insulating barrier, protecting pipe and flame proof metal shell are consolidated into an entirety.
2. a kind of flame-proof type multicore according to claim 1 terminal through walls, is characterized in that, the length of described copper core flame proof section is 6mm.
3. a kind of flame-proof type multicore according to claim 1 terminal through walls, is characterized in that, described wire be RV line or, coaxial line or netting twine.
4. a kind of flame-proof type multicore according to claim 1 terminal through walls, is characterized in that, the material of described flame proof metal shell is brass.
5. according to a kind of flame-proof type multicore terminal through walls described in claim 2-4 any one, it is characterized in that, described flame proof metal shell is also arranged with mounting nuts, and its external cylindrical surface is provided with the external screw thread coordinating with described mounting nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025107.7U CN203721902U (en) | 2014-01-15 | 2014-01-15 | Flame-proof multi-core through-wall terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025107.7U CN203721902U (en) | 2014-01-15 | 2014-01-15 | Flame-proof multi-core through-wall terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721902U true CN203721902U (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025107.7U Expired - Fee Related CN203721902U (en) | 2014-01-15 | 2014-01-15 | Flame-proof multi-core through-wall terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037529A (en) * | 2014-05-12 | 2014-09-10 | 宿州中矿三杰科技有限公司 | Mining flame-proof multi-core binding post |
-
2014
- 2014-01-15 CN CN201420025107.7U patent/CN203721902U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037529A (en) * | 2014-05-12 | 2014-09-10 | 宿州中矿三杰科技有限公司 | Mining flame-proof multi-core binding post |
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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 |
Granted publication date: 20140716 Termination date: 20170115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |