CN211265082U

CN211265082U - Fireproof cable

Info

Publication number: CN211265082U
Application number: CN202020035660.4U
Authority: CN
Inventors: 徐季新; 黄建卫; 邱金波; 张天成; 黄桂领; 王世军
Original assignee: Zhejiang Zetastone Special Cable Co ltd
Current assignee: Zhejiang Zetastone Special Cable Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-08-14
Anticipated expiration: 2030-01-08

Abstract

The utility model relates to the technical field of cables, especially, relate to a fireproof cable, which comprises a supporting rack, the outer protective layer, and wear to establish the sinle silk between support frame and the outer protective layer, the support frame is located the cable axis, the support frame is equipped with four stabilizer blades, four stabilizer blade circumference evenly distributed, the outer fixedly connected with support ring of stabilizer blade, the support ring forms the sinle silk chamber with the stabilizer blade, the sinle silk is worn to establish in the sinle silk intracavity, the sinle silk intracavity is equipped with the flexure strip, flexure strip both ends and stabilizer blade fixed connection, the medial surface and the sinle silk of flexure strip are hugged closely, the sinle silk both sides are all laminated there is the gasbag, gasbag one side and flexure strip laminating, opposite side and stabilizer blade. The utility model discloses a separate between the sinle silk, prevent to influence mutually between the sinle silk, through the flexure strip and the gasbag that set up, when the temperature of sinle silk department is too high, the gasbag heat absorption inflation for the heat dissipation post communicates with the heat dissipation on the flexure strip, accelerates the heat dissipation.

Description

Fireproof cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a fireproof cable.

Background

The cable plays an extremely important role in all industries as a main medium of modern communication, so the protection performance of the cable is more and more valued.

At present, the cable on the market is mainly that a whole strand of cable parcel is in the protective sheath, this kind of cable is simple structure, the preparation process is simple and convenient, but cable and cable contact, when buckling, make the insulating layer damage of cable easily, the insulating layer damage back, the sinle silk can produce electric arc, the temperature risees, thereby make the insulating layer carbonization, a plurality of cables are twisted into one moreover, when certain cable insulating layer damage back, the electric arc that the sinle silk produced can also make the insulating layer carbonization of adjacent cable, lead to a plurality of sinle silks to produce electric arc simultaneously, make the temperature sharply rise, very easily cause the conflagration.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a fireproof cable through separating between sinle silk and the sinle silk, prevents to influence each other between the sinle silk, through flexure strip and the gasbag that sets up, when the temperature of sinle silk department is too high, the gasbag heat absorption inflation for the heat dissipation post communicates with the heat dissipation on the flexure strip, accelerates the heat dissipation.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

the utility model provides a fireproof cable, includes support frame, outer protective layer to and wear to establish the sinle silk between support frame and the outer protective layer, the support frame is located the cable axis, the support frame is equipped with four stabilizer blades, four stabilizer blade circumference evenly distributed, the outer fixedly connected with support ring of stabilizer blade, the support ring forms the sinle silk chamber with the stabilizer blade, the sinle silk is worn to establish at the sinle silk intracavity, the sinle silk intracavity is equipped with the flexure strip, the both ends of flexure strip respectively with adjacent stabilizer blade fixed connection, the medial surface of flexure strip is hugged closely with the sinle silk, the sinle silk both sides are all laminated and are had the gasbag, gasbag one side and flexure strip laminating, opposite side and stabilizer blade laminating, the outer cladding of sinle silk has the insulating layer, be equipped with.

Further, be equipped with the buffering area between flexure strip and the support ring, the hollow heat dissipation post of fixedly connected with on the flexure strip, the through-hole has been seted up to the position that the support ring corresponds the heat dissipation post, the cushion chamber has been seted up to the position that corresponds the through-hole in the heat dissipation layer, the heat dissipation post is worn to establish in the through-hole, and the heat dissipation post end is located the cushion chamber, all seted up the heat dissipation notch on flexure strip and the heat dissipation post, when the flexure strip was pushed into in the cushion chamber, the heat dissipation cap removed at the cushion chamber, and the heat dissipation notch one end of heat dissipation post is located the heat dissipation in situ, and the other end is located the cushion chamber to make the regional intercommunication of heat dissipation layer and sinle.

Further, the tail end of the heat dissipation column is fixedly connected with a heat dissipation cap, the heat dissipation cap is located in the buffer cavity, one side of the heat dissipation cap is attached to the support ring, and the heat dissipation column is prevented from being separated from the support ring.

Furthermore, an annular heat dissipation through hole is formed in the heat dissipation layer, and the heat dissipation through hole is communicated with the buffer cavity, so that heat diffusion is further accelerated.

Furthermore, the outer protection layer comprises a waterproof layer and an anti-aging layer, the waterproof layer is made of flame-retardant polyvinyl chloride materials and has waterproof, high-temperature-resistant, tensile and anti-compression performances, and the anti-aging layer is made of anti-aging polyvinyl chloride materials and has anti-aging performance.

Further, the gasbag intussuseption is filled with inert gas, and the temperature of sinle silk department is too high and reach the ignition point for when the gasbag was damaged, inert gas can prevent that open fire from appearing in sinle silk department.

The utility model has the advantages that: on one hand, the utility model separates the wire cores from the wire cores to prevent the wire cores from being influenced mutually; on the other hand, through the elastic sheet and the air bag, when the temperature at the position of the wire core is too high, the air bag absorbs heat and expands, so that the heat dissipation column on the elastic sheet is communicated with heat dissipation, and the heat dissipation is accelerated. Through the inert gas of intussuseption in the gasbag, when sinle silk department temperature reached the ignition point, the gasbag was damaged, and inert gas can prevent that open fire from appearing in sinle silk department, prevents that the cable from being burnt out.

Drawings

Fig. 1 is a pie chart of a fireproof cable of the present invention;

fig. 2 is a schematic structural view of a support frame and an elastic sheet in a fireproof cable of the present invention;

fig. 3 is a schematic view of the axial cross-sectional structure of a fireproof cable according to the present invention;

the support frame 1, the support leg 11, the support ring 12, the through hole 121, the buffer area 13, the elastic sheet 2, the heat dissipation column 21, the heat dissipation cap 211, the heat dissipation notch 22, the wire core 3, the insulating layer 31, the air bag 4, the outer protective layer 5, the waterproof layer 51, the anti-aging layer 52, the heat dissipation layer 6, the buffer cavity 61 and the heat dissipation through hole 62.

Detailed Description

The invention will be described in detail with reference to the following drawings and specific embodiments:

as shown in fig. 1-3, the utility model discloses a fireproof cable, including support frame 1, outer protective layer 5 to and wear to establish sinle silk 3 between support frame 1 and outer protective layer 5. Support frame 1 is located the cable axis, support frame 1 is equipped with four

stabilizer blades

11, 11 circumference evenly distributed of four stabilizer blades, the outer fixedly connected with support ring 12 of stabilizer blade 11, be equipped with heat dissipation layer 6 between outer protective layer 5 and the support ring 12, support ring 12 forms the sinle silk chamber with stabilizer blade 11, sinle silk 3 wears to establish in the sinle silk intracavity, wears to establish sinle silk intracavity in the difference with sinle silk 3, makes and separates between sinle silk 3 and the sinle silk 3, prevents to influence each other between sinle silk 3 and the sinle silk 3.

The sinle silk intracavity is equipped with flexure strip 2, and the both ends of flexure strip 2 respectively with adjacent stabilizer blade 11 fixed connection, the medial surface and the sinle silk 3 of flexure strip 2 are hugged closely, and flexure strip 2 fixes sinle silk 3 between flexure strip 2 and support frame 1, prevents that sinle silk 3 from removing at will.

3 outer cladding of sinle silk has insulating layer 31, and 3 both sides of sinle silk have all laminated

gasbag

4, and 4 one sides of gasbag are laminated with flexure strip 2, and the opposite side is laminated with stabilizer blade 11, can accelerate sinle silk 3 heat dissipations on the one hand, and on the other hand plays a buffer protection effect to sinle silk 3. The gasbag 4 intussuseption is filled with inert gas, and the temperature of 3 departments of sinle silk is too high and reach the ignition point for when gasbag 4 was damaged, inert gas can prevent that 3 departments of sinle silk from appearing the naked light.

Be equipped with buffer area 13 between flexure strip 2 and the support ring 12, the hollow heat dissipation post 21 of fixedly connected with on the flexure strip 2, the through-hole 121 has been seted up to the position that the support ring 12 corresponds heat dissipation post 21, buffer chamber 61 has been seted up to the position that corresponds through-hole 121 in heat dissipation layer 6, heat dissipation post 21 wears to establish in through-hole 121, and heat dissipation post 21 end is located buffer chamber 61, heat dissipation notch 22 has all been seted up on flexure strip 2 and the heat dissipation post 21, be convenient for from heat dissipation notch 22 the outdiffusion in the temperature of sinle silk 3 department. The end of the heat dissipation column 21 is provided with a heat dissipation cap 211, and the heat dissipation cap 211 of the heat dissipation column 21 is located outside the support ring 12 to prevent the heat dissipation column 21 from separating from the support ring 12.

When sinle silk 3 generates heat, the gas in the gasbag 4 heat absorption inflation to in pushing away the flexure strip 2 to buffer area 13, heat dissipation cap 211 removes in buffer chamber 61, and heat dissipation 21's heat dissipation notch 22 one end is located heat dissipation layer 6, and the other end is located buffer area 13, thereby makes the regional intercommunication of heat dissipation layer 6 and sinle silk 3 department, makes the heat diffusion of sinle silk 3 department more quick.

The heat dissipation layer 6 is made of rubber particles, so that the heat dissipation layer 6 can dissipate heat quickly and has certain flexibility. An annular heat dissipation through hole 62 is formed in the heat dissipation layer 6, and the heat dissipation through hole 62 is communicated with the buffer cavity 61, so that heat dissipation is further accelerated.

The outer protective layer 5 comprises a waterproof layer 51 and an anti-aging layer 52, the waterproof layer 51 is made of flame-retardant polyvinyl chloride materials and has waterproof, high-temperature-resistant, tensile and compression-resistant performances, and the anti-aging layer 52 is made of anti-aging polyvinyl chloride materials and has anti-aging performance.

The fire prevention cable of this embodiment, when the temperature that sinle silk 3 distributed out was too high, the gaseous heat absorption inflation in the gasbag 4 made in flexure strip 2 was extruded buffer area 13 to make in cooling cap 211 enters into heat dissipation layer 6, thereby make the regional intercommunication of heat dissipation layer 6 and sinle silk 3 department, make the temperature of sinle silk 3 department spread in heat dissipation layer 6 from heat dissipation notch 22 fast.

When the temperature of sinle silk 3 department reaches the ignition point, gasbag 4 is damaged, and the inert gas in the gasbag 4 leaks sinle silk 3 department, prevents sinle silk 3 spontaneous combustion.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. A fire-resistant cable, characterized in that: comprises a support frame (1), an outer protection layer (5) and a wire core (3) which is arranged between the support frame (1) and the outer protection layer (5) in a penetrating way, wherein the support frame (1) is positioned on the axis of a cable, the support frame (1) is provided with four support legs (11), the circumference of the four support legs (11) is uniformly distributed, the outer part of each support leg (11) is fixedly connected with a support ring (12), the support ring (12) and the support legs (11) form a wire core cavity, the wire core (3) is arranged in the wire core cavity in a penetrating way, an elastic sheet (2) is arranged in the wire core cavity, two ends of each elastic sheet (2) are fixedly connected with the adjacent support legs (11) respectively, the inner side of each elastic sheet (2) is tightly attached to the wire core (3), air bags (4) are respectively attached to two sides of the wire core (3), one side of each air bag (4, the cable core (3) is coated with an insulating layer (31), and a heat dissipation layer (6) is arranged between the outer protection layer (5) and the support ring (12).

2. A fire-resistant cable according to claim 1, wherein: be equipped with between flexure strip (2) and support ring (12) buffer area (13), hollow heat dissipation post (21) of fixedly connected with is gone up in flexure strip (2), through-hole (121) have been seted up to the position that support ring (12) correspond heat dissipation post (21), cushion chamber (61) have been seted up to the position that corresponds through-hole (121) in heat dissipation layer (6), wear to establish in through-hole (121) heat dissipation post (21), and heat dissipation post (21) end is located cushion chamber (61), heat dissipation notch (22) have all been seted up on flexure strip (2) and heat dissipation post (21).

3. A fire-resistant cable according to claim 2, wherein: the tail end of the heat dissipation column (21) is fixedly connected with a heat dissipation cap (211), the heat dissipation cap (211) is located in the buffer cavity (61), and one side of the heat dissipation cap (211) is attached to the support ring (12).

4. A fire-resistant cable according to claim 3, wherein: an annular heat dissipation through hole (62) is formed in the heat dissipation layer (6), and the heat dissipation through hole (62) is communicated with the buffer cavity (61).

5. A fire-resistant cable according to claim 4, wherein: the outer protective layer (5) comprises a waterproof layer (51) and an anti-aging layer (52).

6. A fire-resistant cable according to claim 5, wherein: and the air bag (4) is filled with inert gas.