CN214203250U

CN214203250U - Irradiation type double-layer reinforced sheath mineral flexible cable

Info

Publication number: CN214203250U
Application number: CN202120405987.0U
Authority: CN
Inventors: 黎亮; 赵云; 卫建良; 魏宜; 赵丰华; 陈华
Original assignee: Hubei Longteng Hongqi Cable Group Co ltd
Current assignee: Hubei Longteng Hongqi Cable Group Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-09-14
Anticipated expiration: 2031-02-24

Abstract

An irradiation type double-layer reinforced sheath mineral flexible cable comprises conductors, wherein the conductors are provided with four conductors which are distributed in an annular array, inner insulating tubes are sleeved and fixed on the outer surfaces of the four conductors, wrapping belts are sleeved and fixed on the outer surfaces of the four inner insulating tubes, the four wrapping belts are not in contact with each other, filling support tubes are sleeved and fixed on the outer surfaces of the four wrapping belts together, metal sleeves are sleeved and fixed on the outer surfaces of the filling support tubes, outer sheaths are sleeved and fixed on the outer surfaces of the metal sleeves, central reinforcing ribs are interpenetrated and fixedly connected in the middle parts of the filling support tubes, compared with the original mineral insulating cable, the cable is novel in structure, advanced in materials, double-layer reinforced sheaths are adopted, the comprehensive service performance is superior, the fireproof performance is superior, the cable has the characteristics of softness, good bending performance, low smoke, zero halogen, flame retardance and the like, the utility model can be laid in modern buildings, and is superior in comprehensive service performance, safe and environment-friendly, and safer and more reliable operation.

Description

Irradiation type double-layer reinforced sheath mineral flexible cable

Technical Field

The utility model belongs to the technical field of the electrical equipment technique and specifically relates to a mineral matter flexible cable of double-deck strenghthened type sheath of irradiation type.

Background

At present, the process of the mineral insulated cable is relatively lagged behind, most enterprises still refer to the standard process of products ten years ago to develop, produce and sell the mineral insulated cable, and the main structure of the product comprises a single-stranded copper conductor, powder mineral insulation, a smooth copper sheath and a polyvinyl chloride or polyethylene outer sheath.

The prior art has the following defects or problems:

1. the cable conductor is of a single-strand structure and is poor in flexibility.

2. The cable insulation material is powdery, the processing is difficult, and the length is limited.

3. The cable copper sheath is of a smooth structure and has poor bending performance.

4. The cable outer sheath is made of polyvinyl chloride or polyethylene material, and is safe and environment-friendly.

Disclosure of Invention

An object of the utility model is to the weak point of above-mentioned prior art, provide a mineral matter flexible cable of double-deck strenghthened type sheath of irradiation type to solve the problem that the compliance is poor, processing difficulty and bending property are poor.

In order to achieve the above object, the utility model provides a following technical scheme: an irradiation type double-layer reinforced sheath mineral flexible cable comprises conductors, wherein the conductors are provided with four conductors which are distributed in an annular array, inner insulating pipes are fixedly sleeved on the outer surfaces of the four conductors, wrapping belts are fixedly sleeved on the outer surfaces of the four inner insulating pipes, the four wrapping belts are not in contact with each other, a filling support pipe is fixedly sleeved on the outer surfaces of the four wrapping belts together, a metal sleeve is fixedly sleeved on the outer surface of the filling support pipe, an outer sheath is fixedly sleeved on the outer surface of the metal sleeve, a central reinforcing rib is fixedly inserted in the middle of the filling support pipe and is arranged among the four wrapping belts, the upper part and the lower part of the front end of the filling support pipe are filled, fixedly connected with side strengthening rib all alternates in front end left part and front end right part, and four side strengthening ribs are the alternate setting with four band, and the diameter of central strengthening rib is greater than the diameter of side strengthening rib.

As the utility model discloses a preferred technical scheme, packing the front end of stay tube and seted up mounting groove, central slot and side slot, the mounting groove is provided with four and is the annular array and distributes, and central slot sets up between four mounting grooves, and the side slot is provided with four, and four side slots are the alternate distribution with four mounting grooves, all seted up the first locking groove of a plurality of on the interior circumference of four mounting grooves, have seted up a plurality of second locking groove on the outer periphery of packing the stay tube.

As the utility model discloses an optimal technical scheme, central slot alternates fixed connection with central strengthening rib, and side slot alternates fixed connection with the side strengthening rib.

As the utility model discloses a preferred technical scheme, the first locking of fixedly connected with a plurality of is protruding on the outer periphery of band, and first locking is protruding to be the hemisphere structure, and the band alternates fixed connection in the mounting groove, and the protruding joint of first locking is fixed in first locking inslot.

As the utility model discloses a preferred technical scheme, fixedly connected with a plurality of second locking is protruding on the inner circumference of metal covering, and the protruding joint of second locking is fixed in second locking inslot.

As the utility model discloses an optimal technical scheme, the protruding one side of being close to the metal covering inner wall of second locking is the cylinder structure, and the protruding one side of keeping away from the metal covering inner wall of second locking is half spherical structure.

Compared with the prior art, the utility model provides a double-deck strenghthened type sheath mineral matter flexible cable of irradiation type possesses following beneficial effect:

compared with the original mineral insulated cable, the cable has the advantages of novel structure, advanced materials, double-layer reinforced sheath and superior comprehensive use performance. The cable has excellent fireproof performance, and has the characteristics of softness, good bending performance, low smoke, zero halogen, flame retardance and the like. Through setting up first locking arch, the second locking is protruding, under the unchangeable circumstances of compliance of maintaining, has strengthened the joint strength between each structure, and tensile strength is better. The cable can be laid and used in modern buildings, has superior comprehensive use performance, is safe and environment-friendly, and runs more safely and reliably.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is a schematic view of a part of the structure of the present invention.

In the figure: 1. a conductor; 2. an inner insulating tube; 3. wrapping belts; 4. filling the supporting tube; 5. a metal sheath; 6. an outer sheath; 7. a central reinforcing rib; 8. side reinforcing ribs; 31. a first stopper protrusion; 41. mounting grooves; 42. a first stopper groove; 43. a second detent groove; 44. a central slot; 45. a side slot; 51. a second stop projection.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, in the present embodiment: an irradiation type double-layer reinforced sheath mineral flexible cable comprises conductors 1, wherein the conductors 1 are four and distributed in an annular array, inner insulating pipes 2 are fixedly sleeved on the outer surfaces of the four conductors 1, wrapping belts 3 are fixedly sleeved on the outer surfaces of the four inner insulating pipes 2, the four wrapping belts 3 are not in contact with each other, a filling support pipe 4 is fixedly sleeved on the outer surfaces of the four wrapping belts 3, a metal sleeve 5 is fixedly sleeved on the outer surface of the filling support pipe 4, an outer sheath 6 is fixedly sleeved on the outer surface of the metal sleeve 5, a central reinforcing rib 7 is fixedly inserted in the middle of the filling support pipe 4, the central reinforcing rib 7 is arranged among the four wrapping belts 3, side reinforcing ribs 8 are fixedly inserted in the upper part of the front end, the lower part of the front end, the left part of the front end and the right part of the front end of the filling support pipe 4, the four side reinforcing ribs 8 are alternately, the diameter of the central rib 7 is greater than the diameter of the side ribs 8.

The front end of the filling support tube 4 is provided with four mounting grooves 41, four central slots 44 and four side slots 45, the four mounting grooves 41 are distributed in an annular array, the central slots 44 are arranged among the four mounting grooves 41, the four side slots 45 are alternately distributed with the four mounting grooves 41, the inner circumferential surfaces of the four mounting grooves 41 are provided with a plurality of first stop grooves 42, the outer circumferential surface of the filling support tube 4 is provided with a plurality of second stop grooves 43, and the effect of conveniently connecting and fixing the wrapping tape 3 and the metal sleeve 5 can be achieved; the central slot 44 is fixedly connected with the central reinforcing rib 7 in an inserting way, and the side slot 45 is fixedly connected with the side reinforcing rib 8 in an inserting way; the outer circumferential surface of the wrapping tape 3 is fixedly connected with a plurality of first stop protrusions 31, the first stop protrusions 31 are of a hemispherical structure, the wrapping tape 3 is fixedly inserted into the mounting groove 41, and the first stop protrusions 31 are clamped and fixed in the first stop grooves 42, so that the effect of improving the connection firmness between the wrapping tape 3 and the filling support tube 4 can be achieved; the inner circumferential surface of the metal sleeve 5 is fixedly connected with a plurality of second stop bulges 51, and the second stop bulges 51 are clamped and fixed in the second stop grooves 43, so that the connection between the metal sleeve 5 and the filling support tube 4 is firmer; one side of the second stop protrusion 51 close to the inner wall of the metal sleeve 5 is of a cylindrical structure, and one side of the second stop protrusion 51 far away from the inner wall of the metal sleeve 5 is of a hemispherical structure, so that the connection firmness between the metal sleeve 5 and the filling support tube 4 can be enhanced.

In the embodiment, the conductor 1 adopts a twisted structure, a plurality of copper monofilaments are twisted according to a regular arrangement mode, the twisting direction of the outermost layer is the left direction, the twisting is carried out in a layered mode, the twisting directions of adjacent layers are opposite, the tightness and the stable structure of the conductor 1 are ensured, after the conductor 1 is twisted, conductor 1 surface is bright and clean, the greasy dirt does not have, not damaged shielding and insulating burr, sharp edge, there is not protruding or cracked single line, interior insulating tube 2 adopts 150 ℃ irradiation crosslinked polyolefin, the winding has the mica tape of calcining in the interior insulating tube 2, the winding has no steamed low cigarette fire-retardant area outside interior insulating tube 2, fill stay tube 4 and adopt and pack and cladding around package mica tape form, compact structure, insulating properties and fire resistance have, metal covering 5 adopts indulging the package structure, the ligature becomes the heliciform, oversheath 6 adopts the extrusion structure, the cladding is evenly extruded on the surface of oversheath 6 to there is not steamed low cigarette fire-retardant polyolefin.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mineral matter flexible cable of double-deck strenghthened type sheath of irradiation type, includes conductor (1), its characterized in that: the conductors (1) are arranged in four and distributed in an annular array, inner insulating pipes (2) are fixedly sleeved on the outer surfaces of the four conductors (1), wrapping belts (3) are fixedly sleeved on the outer surfaces of the four inner insulating pipes (2), the four wrapping belts (3) are not in contact with each other, filling support pipes (4) are fixedly sleeved on the outer surfaces of the four wrapping belts (3) together, metal sleeves (5) are fixedly sleeved on the outer surfaces of the filling support pipes (4), outer sheaths (6) are fixedly sleeved on the outer surfaces of the metal sleeves (5), central reinforcing ribs (7) are fixedly connected to the middle of the filling support pipes (4) in an inserting manner, the central reinforcing ribs (7) are arranged among the four wrapping belts (3), side reinforcing ribs (8) are fixedly connected to the upper portions of the front ends, the lower portions of the front ends, the left portions of the front ends and the right portions of the front ends of the filling support pipes (4) in an inserting manner, and the four side reinforcing ribs (8) are arranged alternately with the four wrapping belts (3), the diameter of the central reinforcing rib (7) is larger than that of the side reinforcing ribs (8).

2. The irradiation type double-layer reinforced sheath mineral flexible cable according to claim 1, wherein: filling the front end of stay tube (4) and having seted up mounting groove (41), center slot (44) and side slot (45), mounting groove (41) are provided with four and are the annular array and distribute, center slot (44) set up between four mounting grooves (41), side slot (45) are provided with four, four side slots (45) are the distribution of alternating with four mounting grooves (41), all seted up the first locking groove of a plurality of (42) on the inner circumferential surface of four mounting grooves (41), a plurality of second locking groove (43) have been seted up on the outer periphery of filling stay tube (4).

3. The irradiation type double-layer reinforced sheath mineral flexible cable according to claim 2, wherein: the central slot (44) is fixedly connected with the central reinforcing rib (7) in an inserting way, and the side slot (45) is fixedly connected with the side reinforcing rib (8) in an inserting way.

4. The irradiation type double-layer reinforced sheath mineral flexible cable according to claim 1, wherein: the outer circumferential surface of the wrapping tape (3) is fixedly connected with a plurality of first stop protrusions (31), the first stop protrusions (31) are of a hemispherical structure, the wrapping tape (3) is fixedly connected into the mounting groove (41) in an inserting mode, and the first stop protrusions (31) are fixed into the first stop grooves (42) in a clamping mode.

5. The irradiation type double-layer reinforced sheath mineral flexible cable according to claim 1, wherein: a plurality of second stop bulges (51) are fixedly connected to the inner circumferential surface of the metal sleeve (5), and the second stop bulges (51) are clamped and fixed in the second stop grooves (43).

6. The irradiation type double-layer reinforced sheath mineral flexible cable according to claim 5, wherein: one side of the second stop bulge (51) close to the inner wall of the metal sleeve (5) is of a cylindrical structure, and one side of the second stop bulge (51) far away from the inner wall of the metal sleeve (5) is of a hemispherical structure.