CN209388761U - Mineral insulated cable - Google Patents
Mineral insulated cable Download PDFInfo
- Publication number
- CN209388761U CN209388761U CN201920397520.9U CN201920397520U CN209388761U CN 209388761 U CN209388761 U CN 209388761U CN 201920397520 U CN201920397520 U CN 201920397520U CN 209388761 U CN209388761 U CN 209388761U
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- CN
- China
- Prior art keywords
- inner core
- intranet
- layer
- mineral insulated
- insulated cable
- 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 relates to field of cable technology, disclose a kind of mineral insulated cable, including inner core and outer layer, metal mesh is equipped between inner core and outer layer, the metal mesh includes Intranet and outer net, it is connected between the Intranet and outer net by the staggered supporting rib of several inclinations, minerals fire-proof mud is filled between the inner core and outer layer.Metal mesh enhances the structural strength of cable, and when cable is impacted, outer net is first subjected to impact, and outer net is transmitted to interior online by supporting rib after being impacted, Intranet protects inner core, prevents inner core from being destroyed.Supporting rib inclination is staggered, and supporting rib shares impact force, reduces the pressure that single supporting rib is born, and improves the structural strength of cable, and protection inner core is not damaged.
Description
Technical field
The utility model relates to field of cable technology, in particular to a kind of mineral insulated cable.
Background technique
Mineral insulated cable abbreviation MI cable, as wiring in use, domestic habit is referred to as magnesia cable or anti-thermoelectricity
Cable.It is the copper core copper sheath cable by mineral material magnesia powder as insulation, and mineral insulated cable is by copper conductor, oxidation
Two kinds of magnesium, copper sheath inorganic material compositions.
Notification number is that the Chinese patent of CN207895882U discloses a kind of mineral insulated cable, including wearing layer, wear-resisting
The inner cavity of layer is provided with enhancing fireprotection layer, and filled layer and minerals fire prevention are evenly arranged between colour band layer and uvioresistant layer
Mud, wearing layer plays the role of protection enhancing fireprotection layer, and has stronger flame retardant effect, good insulation preformance, low smoke and zero halogen, nothing
Asbestos, good environmental protection.
It is filled between above-mentioned cable uvioresistant layer and colour band layer by minerals fire-proof mud, minerals fire-proof mud
Quality is softer, and structural strength is weaker, and when cable is impacted, the conductor in cable inner core is easily damaged.
Utility model content
The purpose of the utility model is to provide a kind of mineral insulated cables, and with structure, slightly relatively strong, inner core is hardly damaged
The advantages of.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of mineral insulated cable, including inner core and outer layer are equipped with metal mesh, the metal mesh packet between inner core and outer layer
Include Intranet and outer net, be connected between the Intranet and outer net by the staggered supporting rib of several inclinations, the inner core and outer layer it
Between be filled with minerals fire-proof mud.
By using above-mentioned technical proposal, metal mesh enhances the structural strength of cable, when cable is impacted,
Outer net is first subjected to impact, and outer net is transmitted to interior online by supporting rib after being impacted, Intranet protects inner core, prevents
Inner core is destroyed.Supporting rib inclination is staggered, and supporting rib shares impact force, reduces what single supporting rib was born
Pressure, improves the structural strength of cable, and protection inner core is not damaged.
Further, it is fixed with several dowels on the outer wall of the outer net, offered on the inside of the outer layer and connects
Connect the link slot that muscle matches.
By using above-mentioned technical proposal, outer net passes through dowel inlay card in outer layer inner wall, dowel and link slot pair
The position of outer net is fixed, while increasing the contact area of outer layer and outer net, improves the stability that metal mesh is connect with outer layer.
Further, the inner core includes four transmission lines, and column line feeder is equipped at four center of transmission line, described to add
Locating plate cruciferous is fixed on the side wall of strong line, the positioning to fit with transmission line outer wall is offered on the locating plate
Slot.
By using above-mentioned technical proposal, line feeder is located at the center of four transmission lines, and line feeder is to four transmission lines
Center be filled, thus improve four transmission lines structural strength, after preventing a certain transmission line from being impacted mutually squeeze
Pressure, influences gas transport line.Locating plate and locating slot are defined transmission line, prevent transmission line play in inner core, influence
The stability of cable entirety.
Further, end of the locating plate far from line feeder is connected with Intranet inner wall.
By using above-mentioned technical proposal, Intranet is connected by locating plate with line feeder, when cable is impacted, metal
Netcom crosses locating plate and transmits the force to line feeder, and impact force suffered by cable is propped up in line feeder and metal mesh mutual cooperation
Support reduces impact force suffered by inner core, to protect to inner core, prevents inner core impaired.
Further, the end of the locating plate towards Intranet is set as fold-line-shaped.
By using above-mentioned technical proposal, locating plate is set as fold-line-shaped with certain elasticity, and outer net is passed by locating plate
When passing impact force, the locating plate of fold-line-shaped can carry out snubber to impact force, thus reduce impact force suffered by inner core, it is right
Inner core is protected.
Further, several spiral fixing grooves are uniformly provided on the inner wall of the Intranet, the fixing groove is embedded with
Columnar flame-retardant layer.
By using above-mentioned technical proposal, cable fire, flame-retardant layer can control the intensity of a fire, prevent cable further
Burning, to reduce loss.Flame-retardant layer is fixed in fixing groove, prevents flame-retardant layer play from influencing flame retardant effect.It is spiral
The length of flame-retardant layer is longer, preferable to the package effect of cable, enhances the flame retardant effect of flame-retardant layer.
Further, the abrasion resistant convex grain of several distributions straggly is fixed on the outer layer outer wall.
By using above-mentioned technical proposal, the distribution straggly of abrasion resistant convex grain increases outer layer and external contact area and abrasionproof
Effect.
In conclusion the utility model has the following beneficial effects:
1. supporting rib inclination is staggered, and supporting rib shares impact force by the setting of metal mesh, reduce single
The pressure that supporting rib is born, improves the structural strength of cable, and protection inner core is not damaged；
2. by the setting of line feeder, line feeder and metal mesh mutual cooperation are supported impact force suffered by cable,
Reduce impact force suffered by inner core, to protect to inner core, prevents inner core impaired.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment.
In figure, 1, inner core；11, transmission line；111, colour band layer；112, flexible oxide layer；113, flame-retardant layer；114, Nei Naigao
Warm layer；115, insulating layer；116, conductor；12, line feeder；13, locating plate；131, locating slot；2, outer layer；21, wearing layer；211,
Abrasion resistant convex grain；22, enhance fireprotection layer；23, high-temperature-resistant layer；24, uvioresistant layer；241, link slot；3, metal mesh；31, Intranet；
32, outer net；33, supporting rib；34, fixing groove；35, dowel；4, minerals fire-proof mud；5, flame-retardant layer.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:
A kind of mineral insulated cable, such as Fig. 1, including inner core 1 and outer layer 2.It is anti-filled with minerals between internal layer and outer layer 2
Chamotte 4, minerals fire-proof mud 4 enhance fireproofing of cable.Winding protection is carried out to inner core 1 to outer layer 2, prevents inner core 1 impaired.
Such as Fig. 1, outer layer 2 is followed successively by wearing layer 21, enhancing fireprotection layer 22, high-temperature-resistant layer 23 and uvioresistant layer from outside to inside
24.The abrasion resistant convex grain 211 of several distributions straggly is fixed on the outer wall of wearing layer 21.Abrasion resistant convex grain 211 and wearing layer 21 are mutual
Cooperation improves the wearability of outer layer 2, prevents the abrasion exposure of inner core 1.
Such as Fig. 1, metal mesh 3 is equipped between inner core 1 and outer layer 2, metal mesh 3 can be wire netting.Metal mesh 3 includes Intranet 31
With outer net 32, outer net 32 is towards outer layer 2, and Intranet 31 is towards inner core 1.Metal mesh 3 is embedded between inner core 1 and outer layer 2, improves cable
Whole structural strength, prevents cable bad.
Such as Fig. 1, if Intranet 31 and outer net 32 are all formed by the reinforcement metal wire knitted being staggered, Intranet 31 and outer net 32
Spiral packaging is in outside inner core 1 at an angle.The length of metal mesh 3 is longer, whole relatively stable, not easily broken when being pulled
It splits.
Such as Fig. 1, several cylindrical dowels 35 are fixed on the outer wall of outer net 32, are opened up on the inner wall of uvioresistant layer 24
There is the link slot 241 matched with dowel 35.Outer net 32 is affixed on the inner wall of uvioresistant layer 24.Dowel 35 is embedded in connection
In slot 241, so that the position of outer net 32 be fixed, outer net 32 and 2 relative motion of outer layer are prevented, influences the anti-of metal mesh 3
Protect effect.
Such as Fig. 1, passes through several inclinations between outer net 32 and Intranet 31 and staggered supporting rib 33 is fixedly linked.Supporting rib
33 pairs of Intranets 31 and outer net 32 are supported and protect, and inclined supporting rib 33 can be to effective when by the pressure of different directions
Outer net 32 is supported, preventing outer net 32 from deforming excessively causes to damage.
Such as Fig. 1, several spiral fixing grooves 34 are uniformly provided on the inner wall of Intranet 31, the section of fixing groove 34 is circular arc
Shape.Fixing groove 34 is embedded with cylindrical flame-retardant layer 5113, and flame-retardant layer 5113 is aluminium hydroxide fire retardant.When high-temperature-resistant layer 23 by
To after destruction, the aluminium hydroxide flame-retardant powder spillage of flame-retardant layer 5113 plays the role of effective flame-retarding fire-extinguishing
Such as Fig. 1, inner core 1 includes four transmission lines 11, and transmission line 11 is followed successively by colour band layer 111, flexible oxidation from outside to inside
Layer 112, flame-retardant layer 5113, interior high-temperature-resistant layer 23114, insulating layer 115 and conductor 116.
Such as Fig. 1, transmission line 11 is divided to be arranged for two rows two.The middle of four transmission lines 11 is equipped with a line feeder 12, reinforces
The side wall of line 12 is connected with four locating plates 13, and 13 one end of locating plate is connected the other end with line feeder 12 and the inner wall of Intranet 31 is fixed
It is connected.The inner ring of Intranet 31 is divided into four regions by line feeder 12 and locating plate 13, and four transmission lines 11 are located at four areas
In domain, be spaced each other, prevent wherein a transmission line 11 by the intensity for being influenced remaining transmission line 11 when impacting.
Such as Fig. 1, arc-shaped locating slot 131, the outer wall phase of locating slot 131 and colour band layer 111 are offered on locating plate 13
Fitting.Locating slot 131 positions transmission line 11, prevents transmission line 11 from shaking the stabilization of sound of something astir transmission line 11 in Intranet 31
Property.
Such as Fig. 1, the end that locating plate 13 is connected with Intranet 31 is fold-line-shaped, and Intranet 31 passes through locating plate 13 and line feeder 12
It is connected.Metal mesh 3 is hit power, and impact force is passed to line feeder 12 by locating plate 13 by metal mesh 3.Line feeder 12 is to metal
The power of net 3 is absorbed, to reduce the impact force that transmission line 11 is subject to, is protected to transmission line 11, is prevented transmission line 11
It is impaired.The locating plate 13 of fold-line-shaped has certain elasticity, when outer net 32 transmits impact force by locating plate 13, fold-line-shaped
Locating plate 13 can carry out snubber to impact force and protect to reduce impact force suffered by inner core 1 to inner core 1.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
1. a kind of mineral insulated cable, including inner core (1) and outer layer (2), it is characterised in that: set between inner core (1) and outer layer (2)
Have metal mesh (3), the metal mesh (3) includes Intranet (31) and outer net (32), is led between the Intranet (31) and outer net (32)
It crosses the staggered supporting rib (33) of several inclinations to be connected, is filled with minerals fire-proof mud (4) between the inner core (1) and outer layer (2).
2. mineral insulated cable according to claim 1, it is characterised in that: the outer net (32) if outer wall on be fixed with
Dry dowel (35), the inside of the outer layer (2) offer the link slot (241) matched with dowel (35).
3. mineral insulated cable according to claim 1, it is characterised in that: the inner core (1) includes four transmission lines
(11), column line feeder (12) are equipped at four transmission line (11) centers, are fixed with cross on the side wall of the line feeder (12)
The locating plate (13) of shape offers the locating slot (131) to fit with transmission line (11) outer wall on the locating plate (13).
4. mineral insulated cable according to claim 3, it is characterised in that: the locating plate (13) is far from line feeder (12)
End be connected with Intranet (31) inner wall.
5. mineral insulated cable according to claim 4, it is characterised in that: the locating plate (13) is towards Intranet (31)
End is set as fold-line-shaped.
6. mineral insulated cable according to claim 1, it is characterised in that: be uniformly provided on the inner wall of the Intranet (31)
Several spiral fixing grooves (34), the fixing groove (34) are embedded with columnar flame-retardant layer (5).
7. mineral insulated cable according to claim 1, it is characterised in that: be fixed on outer layer (2) outer wall several
The abrasion resistant convex grain (211) of distribution straggly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920397520.9U CN209388761U (en) | 2019-03-26 | 2019-03-26 | Mineral insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920397520.9U CN209388761U (en) | 2019-03-26 | 2019-03-26 | Mineral insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209388761U true CN209388761U (en) | 2019-09-13 |
Family
ID=67852742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920397520.9U Expired - Fee Related CN209388761U (en) | 2019-03-26 | 2019-03-26 | Mineral insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209388761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325988A (en) * | 2022-01-25 | 2022-04-12 | 江苏田信塑料光纤有限公司 | Multi-core flame-retardant optical cable and manufacturing process thereof |
-
2019
- 2019-03-26 CN CN201920397520.9U patent/CN209388761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325988A (en) * | 2022-01-25 | 2022-04-12 | 江苏田信塑料光纤有限公司 | Multi-core flame-retardant optical cable and manufacturing process thereof |
| CN114325988B (en) * | 2022-01-25 | 2024-01-09 | 江苏田信塑料光纤有限公司 | Multi-core flame-retardant optical cable and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190913 Termination date: 20210326 |