CN213635410U - Flame-retardant cable convenient for wiring - Google Patents

Abstract

The application relates to a flame-retardant cable convenient for wiring, which relates to the field of electric wires and cables and comprises a plurality of wires, a cutting disc sleeved on the wires and a sheath used for sleeving the cutting disc and the wires; the lead comprises a copper wire and a coating wrapped on the copper wire; the cutting disc is provided with a plurality of cutting holes for accommodating the wires, the wires penetrate into the cutting holes, and the wall of each cutting hole is fixedly connected with a cutting knife for cutting lines on the coating. This application has the effect that makes things convenient for the staff to peel off the coating on the wire.

Description

Flame-retardant cable convenient for wiring

Technical Field

The application relates to the field of electric wires and cables, in particular to a flame-retardant cable convenient for wiring.

Background

Most of flame-retardant cables in the market are low-smoke halogen-free cables, and the low-smoke halogen-free cables are environment-friendly cables which are made of rubber materials which do not contain halogen (F, Cl, Br, I, At), lead, cadmium, chromium, mercury and other environmental substances and do not emit toxic smoke during combustion.

When connecting the cable with other equipment, need to peel off the coating of twining on each wire in the cable, expose the copper line of wire to the staff wiring.

In view of the above-mentioned related arts, the inventors found that when a worker peels off a sheath of a cable, the worker also needs to peel off a coating covering a copper wire with a tool such as a pair of pliers or scissors, and if the worker does not have a tool at his or her hand, the coating is often peeled off by burning or biting, and when the coating is peeled off with a tool such as a pair of pliers or scissors, a lead is easily cut off, which affects the efficiency of the worker in connection.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the coating on the wire to be stripped by workers, the application provides the flame-retardant cable convenient for wiring.

The application provides a flame retarded cable for wiring adopts following technical scheme:

a flame-retardant cable convenient for wiring comprises a plurality of wires, a cutting disc sleeved on the wires and a sheath used for sleeving the cutting disc and the wires;

the lead comprises a copper wire and a coating wrapped on the copper wire; the cutting disc is provided with a plurality of cutting holes for accommodating the wires, the wires penetrate into the cutting holes, and the wall of each cutting hole is fixedly connected with a cutting knife for cutting lines on the coating.

Through adopting above-mentioned technical scheme, when penetrating the wire cutting hole, the cutting edge embedding capsule of cutting knife makes the cutting knife leave a line of cut on the capsule, and when the staff drew the cutting disc, the capsule can be in line of cut department disconnection, and the staff can pull the cutting disc together from the cable with the capsule under the cutting, when needs wiring, also need not to join in marriage the instrument in addition and cut the wire, conveniently exposes the copper line of wire.

Optionally, the sheath includes a mica tape layer, a polyethylene flame retardant layer, a steel tape armor layer and a cross-linked polyolefin insulating layer, which are sequentially coated on the wire.

Through adopting above-mentioned technical scheme, improve the fire-retardant insulating effect of cable.

Optionally, the cutting disc includes a central disc, a plurality of accommodating grooves formed in an outer circumferential surface of the central disc and used for accommodating wires, a fixing ring sleeved on the central disc and formed by butting a first half ring and a second half ring and matched with the central disc to clamp the wires, and a reinforcing hoop used for reinforcing the butting of the first half ring and the second half ring;

when the fixing ring is matched with the central disc, the accommodating groove through which the lead passes is a cutting hole; the cutting knife is arranged in the accommodating groove.

Through adopting above-mentioned technical scheme, when being connected fixed disk and wire, encircle the wire around the center disk earlier to arrange in the holding tank, then establish fixed ring cover around the center disk, make center disk and fixed ring live the wire centre gripping, and with reinforcing hoop fixed, set up the cutting disk into split type structure, the convenience is connected cutting disk and wire.

Optionally, the outer circumferential surface of the fixing ring is provided with a mounting groove for accommodating the reinforcing hoop.

Through adopting above-mentioned technical scheme, when letting consolidate the hoop and use, during the embedding mounting groove, when the sheath winding is on the fixed disk, reduce and consolidate the hoop and to the winding interference of sheath.

Optionally, the cutting disc is provided with a plurality of cutting discs, and the plurality of cutting discs are arranged at equal intervals.

Through adopting above-mentioned technical scheme, set up a plurality of fixed disks on the cable, the staff is carrying out the during operation that the cable was cut, and the fixed disk can carry on spacingly to the wire in the cable of different length, but also can let the staff reduce the fixed disk to the interference of cutting the work when cutting the cable.

Optionally, the protrusion is provided with the drawing pipe on the terminal surface of central disk, set up a plurality of draw-in grooves of equidistant arranging along drawing pipe circumference on the drawing pipe, the protrusion is provided with a plurality of dead levers moreover on solid fixed ring, and one of dead lever serves fixed connection and draw-in groove cooperation joint has the fixture block.

Through adopting above-mentioned technical scheme, the fixture block mutually supports with the draw-in groove for draw the pipe and restrict being connected of central disk and solid fixed ring, prevent the separation between central disk and the solid fixed ring when the staff draws the cutting disc.

Optionally, the two sides of the central disc are both provided with a drawing pipe, and the two sides of the fixing ring are also provided with a fixing rod and a clamping block.

Through adopting above-mentioned technical scheme, when the staff drawed the cutting disc in the direction of difference, the connection between solid fixed ring and the central disk can both receive the cooperation joint restriction of fixture block and draw-in groove.

Optionally, the plurality of wires and the plurality of fixing rods are arranged in a staggered manner.

Through adopting above-mentioned technical scheme, when the staff worked a telephone switchboard, the staff more easily equalled a plurality of wire open, reduced the winding between the adjacent wire to make things convenient for the staff to work a telephone switchboard, and improve the efficiency of wiring work.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cutting disc and the cut coating can be pulled off from the cable by workers, and when wiring is needed, a wire does not need to be cut by an additional tool, so that a copper wire of the wire is conveniently exposed;

2. through setting up the cutting disc into split type structure, make things convenient for the cutting disc to be connected with the wire.

Drawings

FIG. 1 is a schematic view of a cable according to the present embodiment;

FIG. 2 is a schematic view of the cable of this embodiment after the sheath has been removed;

fig. 3 is a schematic view of the cutting disc in this embodiment.

Description of reference numerals: 1. a wire; 11. a copper wire; 12. coating; 2. cutting the disc; 21. cutting the hole; 22. a cutting knife; 23. a central disk; 24. accommodating grooves; 25. a fixing ring; 251. a first half ring; 252. a second half ring; 26. reinforcing the hoop; 27. mounting grooves; 28. drawing the tube; 281. a card slot; 29. fixing the rod; 291. a clamping block; 3. a sheath.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses flame retarded cable for wiring. Referring to fig. 1 and 2, the flame-retardant cable for facilitating wiring comprises a plurality of wires 1, a cutting disc 2 sleeved on the wires 1, and a sheath 3 for sleeving the cutting disc 2 and the wires 1. Referring to fig. 2 and 3, the lead 1 includes a copper wire 11 and a coating 12 coated on the copper wire 11. Offer a plurality of on cutting disc 2 and be used for holding cutting hole 21 of wire 1, wire 1 penetrates in cutting hole 21, and fixedly connected with cutting knife 22 on cutting hole 21's pore wall, when penetrating cutting hole 21 with wire 1, during cutting knife 22's cutting edge embedding capsule 12, make cutting knife 22 leave a line of cut on capsule 12, when the staff draws cutting disc 2, capsule 12 can be at the line of cut department disconnection, the staff can pull off cutting disc 2 together from the cable with cutting capsule 12 down, when needs wiring, the staff also need not to join in marriage the instrument in addition and cut wire 1, the convenience exposes wire 1's copper line 11.

The sheath 3 comprises a mica tape layer, a polyethylene flame-retardant layer, a steel tape armor layer and a cross-linked polyolefin insulating layer which are sequentially coated on the lead 1.

The mica tape layer is mainly made of mica tapes, and the mica tapes are also called fire-resistant mica tapes and are fire-resistant insulating materials.

The polyethylene flame-retardant layer mainly comprises flame-retardant polyethylene, the flame-retardant polyethylene has good adhesion and high flame retardance, and a shaving board adhered by the polyethylene flame-retardant layer has good comprehensive performance and cannot reduce or lose the flame retardance in the storage process in a humid environment. The preparation method is simple, the process is mature, and the control is easy.

Referring to fig. 2 and 3, a plurality of cutting discs 2 are arranged on the cable, the cutting discs 2 are arranged at equal intervals, and when a worker cuts the cable, the cable can be cut between the adjacent cutting discs 2, so that the wires 1 at the cutting discs 2 are exposed conveniently, and the limitation of the cutting discs 2 on the cutting work of the worker can be reduced.

Referring to fig. 2 and 3, the cutting disc 2 includes a central disc 23, a plurality of accommodating grooves 24 are formed at the edge of the central disc 23 and are arranged at equal intervals along the circumferential direction of the central disc 23, the cutting knives 22 are arranged in the accommodating grooves 24, and the wires 1 are also arranged in the accommodating grooves 24. The fixing ring 25 formed by butting two half rings is sleeved on the periphery of the central disc 23, the two half rings of the fixing ring 25 are divided into a first half ring 251 and a second half ring 252, when the central disc 23 is connected with the fixing ring 25, the inner ring surface of the fixing ring 25 is attached to the side surface of the central disc 23, and when the cutting disc 2 is connected with the lead 1, the lead 1 is arranged between the central disc 23 and the fixing ring 25 in a penetrating way and clamped by the central disc 23 and the fixing ring 25, so that the cutting edge of the cutting knife 22 is embedded into the coating 12 of the lead 1.

The accommodation groove 24 through which the lead wire 1 passes is the cut hole 21 when the fixing ring 25 is engaged with the central disk 23. A reinforcing hoop 26 for fixing the first half ring 251 and the second half ring 252 to the central plate 23 is sleeved on the outer side of the fixing ring 25. The outer peripheral surface of the fixing ring 25 is provided with a mounting groove 27 for accommodating the reinforcing hoop 26, and when the reinforcing hoop 26 is arranged in the mounting groove 27, the reinforcing hoop 26 is completely embedded in the mounting groove 27, and the surface of the reinforcing hoop 26 does not exceed the outer peripheral surface of the fixing ring 25.

When connecting the cutting disc 2 to the wire 1, the wire 1 is first wound around the central disc 23 and placed in the receiving groove 24, and then the fixing ring 25 is fitted around the central disc 23 so that the central disc 23 and the fixing ring 25 clamp the wire 1 and are fixed by the reinforcing band 26.

A drawing pipe 28 is provided to protrude from an end surface of the center plate 23, and the drawing pipes 28 are provided at both ends of the center plate 23. A plurality of clamping grooves 281 are formed in the drawing tube 28 and are arranged at equal intervals along the circumferential direction of the drawing tube 28, a plurality of fixing rods 29 are arranged on the fixing ring 25 in a protruding mode, one end of each fixing rod 29 is fixedly connected with the fixing ring 25, a clamping block 291 is fixedly connected to the other end of each fixing rod 291, when the fixing ring 25 is sleeved on the central disc 23, one end, provided with the clamping block 291, of each fixing rod 29 is embedded into the clamping groove 281, the clamping grooves 281 and the clamping blocks 291 are matched with each other, and the fixing rods 29 and the clamping blocks 291 are arranged on. When the staff draws central disk 23, fixture block 291 and draw-in groove 281 mutually cooperate the joint, and the separation of restriction central disk 23 and solid fixed ring 25 prevents that the unable condition of cutting knife 22 cutting capsule 12 from appearing when pulling out cutting dish 2.

When a plurality of wire 1 was arranged on cutting disc 2, a plurality of wire 1 was arranged with a plurality of dead lever 29 looks mistake for dead lever 29 has supported the distance between the adjacent wire 1, when letting the staff work a telephone switchboard, the staff more easily with a plurality of wire 1 flat out, reduces the winding between the adjacent wire 1, thereby makes things convenient for the staff to work a telephone switchboard, and improves the efficiency of work of working a telephone switchboard.

Alternatively, the cutting disc 2 may be provided of a flexible material, such as rubber, silicone or the like, when the cable is used

The implementation principle of the flame retardant cable convenient for wiring in the embodiment of the application is as follows: when the cable is manufactured, a worker firstly connects the wires 1 with the cutting disc 2, and the cutting knife 22 on the cutting disc 2 clamps and presses the plurality of wires 1, so as to cut a cutting line on the coating 12 of the wires 1, and the worker can take the coating 12 off by pulling off the cutting disc 2 when pulling off the coating 12 on the wires 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a flame retarded cable is used in wiring which characterized in that: comprises a plurality of leads (1), a cutting disc (2) sleeved on the leads (1) and a sheath (3) used for sheathing the cutting disc (2) and the leads (1);

the lead (1) comprises a copper wire (11) and a coating (12) coated on the copper wire (11); the cutting disc (2) is provided with a plurality of cutting holes (21) for accommodating the wires (1), the wires (1) penetrate into the cutting holes (21), and the wall of each cutting hole (21) is fixedly connected with a cutting knife (22) for cutting lines on the coating (12).

2. A flame retardant cable for facilitating wiring according to claim 1, wherein: the sheath (3) comprises a mica tape layer, a polyethylene flame-retardant layer, a steel tape armor layer and a cross-linked polyolefin insulating layer which are sequentially coated on the lead (1).

3. A flame retardant cable for facilitating wiring according to claim 1, wherein: the cutting disc (2) comprises a central disc (23), a plurality of accommodating grooves (24) formed in the outer peripheral surface of the central disc (23) and used for accommodating the conducting wires (1), a fixing ring (25) which is sleeved on the central disc (23), formed by butt joint of a first half ring (251) and a second half ring (252) and matched with the central disc (23) to clamp the conducting wires (1), and a reinforcing hoop (26) used for reinforcing butt joint of the first half ring (251) and the second half ring (252);

when the fixing ring (25) is matched with the central disc (23), the accommodating groove (24) through which the lead (1) passes is a cutting hole (21); the cutting knife (22) is arranged in the accommodating groove (24).

4. A flame retardant cable for facilitating wiring according to claim 3, wherein: the outer peripheral surface of the fixing ring (25) is provided with a mounting groove (27) for accommodating the reinforcing hoop (26).

5. A flame retardant cable for facilitating wiring according to claim 1, wherein: the cutting discs (2) are arranged in a plurality of equal intervals.

6. A flame retardant cable for facilitating wiring according to claim 3, wherein: the end face of the central disc (23) is convexly provided with a drawing pipe (28), a plurality of clamping grooves (281) which are circumferentially arranged at equal intervals along the drawing pipe (28) are formed in the drawing pipe (28), a plurality of fixing rods (29) are convexly arranged on the fixing ring (25), and one end of each fixing rod (29) is fixedly connected with the clamping groove (281) in a matched clamping mode to form a clamping block (291).

7. The flame retardant cable for facilitating the connection of wires according to claim 6, wherein: the drawing pipe (28) is arranged on each of two sides of the central disc (23), and the fixing rod (29) and the clamping block (291) are arranged on each of two sides of the fixing ring (25).

8. The flame retardant cable for facilitating the connection of wires according to claim 6, wherein: the plurality of leads (1) are arranged in a staggered manner with the plurality of fixing rods (29).

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