CN217181872U - Novel fireproof cable - Google Patents

Abstract

The utility model provides a new type of fireproof cable, which comprises a flame-retardant rubber body, a signal line and a conductive line. One side of the outline penetrates into the flame-retardant rubber body; the section of the flame-retardant rubber body located between the signal line and the conductive line is provided with several layers of cavities from top to bottom, and the width direction of each layer of the cavities is parallel to the signal line The connection between the circuit and the conductive circuit; the flame-retardant rubber body between the signal circuit and the conductive circuit is also provided with a set of notches on the upper and lower sides of the section, and the connection between the two sets of notches is perpendicular to the signal circuit and the connection between the conductive lines; in the fireproof cable of the present utility model, due to the arrangement of the multi-layer cavity, the section thickness of the flame-retardant rubber body is reduced, and it is convenient to cut from the gap with the help of a cutter; at the same time, due to the multi-layer cavity The existence of the clip cavity makes the fireproof cable easy to bend and easy to be wound on the wire reel.

Description

A new type of fireproof cable

technical field

The utility model relates to the field of cables, in particular to a novel fireproof cable.

Background technique

There are some dual-purpose composite fireproof cables with both signal transmission and power transmission on the market, that is, the cable structure has built-in signal lines and conductive lines, which can use a set of cables to complete the signal transmission and power supply needs of the equipment terminal. The wiring is beautiful and tidy, and the maintenance is convenient.

Usually, when the above-mentioned dual-purpose fireproof cable is connected to the equipment terminal, the skin of the cable end needs to be cut to lead out the signal line and the conductive line in the cable respectively. .

Utility model content

The purpose of the utility model is to overcome the shortcomings of the background technology and provide a new type of fireproof cable.

The embodiment of the present utility model is realized by the following technical solutions:

A new type of fireproof cable, comprising a flame-retardant rubber body, a signal line and a conductive line, the cross-sectional profile of the flame-retardant rubber body is in the shape of a straight notch, and the signal line and the conductive line are along the cross-section of the flame-retardant rubber body. One side of the profile penetrates into the flame-retardant rubber body;

There are several layers of sandwich cavities from top to bottom in the section of the flame-retardant rubber body between the signal line and the conductive line, and the width direction of each layer of the sandwich cavity is parallel to the width direction between the signal line and the conductive line. Connecting lines; the upper and lower sides of the section of the flame-retardant rubber body between the signal lines and the conductive lines are also provided with a set of gaps, and the connecting lines between the two sets of the gaps are perpendicular to the signal lines and the conductive lines. Connections between conductive lines.

In some preferred embodiments, the width of each set of the clamping cavities is equally divided by the connecting line between the two sets of the notches.

In some preferred embodiments, the signal line includes a skin layer, a filling layer is wrapped in the skin layer, and several groups of copper strands and several groups of first steel strands pass through the filling layer.

In some preferred embodiments, the outer sidewall of the copper stranded wire is wrapped with a shielding layer.

In some preferred implementations, several groups of the copper strands and several groups of the first steel strands are arranged in a circular array around the axis of the signal line, and each adjacent two groups of copper strands are spaced between each other. There is a set of said first steel strands.

In some preferred embodiments, the conductive circuit includes a fixed layer and several groups of metal wire bundles wrapped in the fixed layer, and the surface layer of each set of metal wire bundles is wrapped with an insulating layer.

In some preferred embodiments, a set of sheaths are arranged in the center of the fixed layer of the conductive lines, and a second steel strand is threaded through the sheaths; a plurality of sets of wing plates are radially arranged around the sheath, and each A group of the metal wire bundles are respectively arranged in the area between the adjacent two groups of wing plates.

In some preferred embodiments, several groups of the metal wire bundles are wound and fixed on the outer sidewall of the sheath through a non-woven layer.

The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

In the fireproof cable of the present utility model, the signal line and the conductive line are located on the left and right sides of the cross-sectional contour of the flame-retardant rubber body, and several layers of sandwich cavities are arranged in the cross-section of the flame-retardant rubber body between the signal line and the conductive line, and are located in the flame-retardant rubber body. There are also a set of notches on the upper and lower sides of the section of the flame-retardant rubber body between the circuit and the conductive circuit; due to the arrangement of the multi-layer cavity, the section thickness of the flame-retardant rubber body is reduced, and it is convenient to cut from the gap with a tool At the same time, due to the existence of the multi-layer clamping cavity, the fireproof cable is easy to bend, and it is convenient to be wound on the wire reel.

Description of drawings

Fig. 1 is the perspective view of the novel fireproof cable of the present utility model;

Fig. 2 is the front view of the novel fireproof cable of the utility model;

Fig. 3 is the structural schematic diagram of the signal line in the novel fireproof cable of the present invention;

Icon: 10-flame retardant rubber body, 100-clamp cavity, 101-notch, 20-signal line, 200-first steel strand, 201-copper strand, 202-shielding layer, 203-filling layer, 204-table Skin layer, 30-conductive line, 300-second steel strand, 301-sheath, 302-wing plate, 303-insulation layer, 304-metal wire harness, 305-non-woven layer, 306-fixed layer.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Referring to FIGS. 1 to 3 , the present invention discloses a new type of fire-resistant cable, which includes a flame-retardant rubber body 10 , a signal line 20 and a conductive line 30 , wherein each of the signal lines 20 and the conductive lines 30 is provided with one group, and The signal lines 20 and the conductive lines 30 are both penetrated in the flame-retardant rubber body 10 .

Referring to FIG. 1 , the cross-sectional profile of the flame-retardant rubber body 10 is in the shape of a straight notch, and the signal lines 20 and the conductive lines 30 respectively penetrate the flame-retardant rubber body along one side of the cross-sectional profile of the flame-retardant rubber body 10 . 10 , in this embodiment, the signal line 20 penetrates along the right side of the cross-sectional profile of the flame-retardant rubber body 10 , and the conductive line 30 penetrates along the left side of the cross-sectional profile of the flame-retardant rubber body 10 .

In the section of the flame-retardant rubber body 10 located between the signal line 20 and the conductive line 30, there are several layers of sandwich cavities 100 from top to bottom, and the width direction of each layer of the sandwich cavity 100 is parallel to the signal line 20 and the connection between the conductive lines 30, specifically, referring to FIG. 2, several layers of the sandwich cavity 100 are evenly spaced from top to bottom; in addition, between the signal lines 20 and the conductive lines 30 The upper and lower sides of the section of the flame retardant rubber body 10 are also provided with a set of notches 101, and the connection between the two groups of the notches 101 is perpendicular to the connection between the signal line 20 and the conductive line 30; When the flame-retardant rubber body 10 is cut, the cutting is performed along the notch 101 . Due to the existence of the multi-layer cavity 100 , the thickness of the flame-retardant rubber body 10 is reduced, and the cutting is more convenient.

At the same time, due to the existence of the multi-layer clamping cavity 100, the thickness of the flame-retardant rubber body 10 is reduced, so that the novel fire-proof cable is easy to bend, and is convenient to be wound on the winding reel.

In this embodiment, referring to FIG. 2 , the width of each set of the clamping cavity 100 is equally divided by the connecting lines between the two sets of the notches 101 , and the signal lines 20 and the conductive lines 30 are related to the The connecting lines between the two groups of the notches 101 are arranged symmetrically.

In some preferred embodiments, the signal line 20 includes a skin layer 204, and the skin layer 204 is wrapped with a filling layer 203. The filling used in the filling layer 203 is Kevlar tensile filling, and the skin layer 204 uses The filling layer 203 is wrapped and fixed. Several groups of copper strands 201 and several groups of first steel strands 200 are passed through the filling layer 203. The function of the copper strands 201 is for signal transmission. The first steel strands The role of 200 is to strengthen the connection strength.

The plurality of groups of the copper strands 201 and the plurality of groups of the first steel strands 200 are arranged in a circular array around the axis of the signal line 20, and each adjacent two groups of copper strands 201 are arranged between each other. There is a set of the first steel strands 200 , and the outer sidewall of the copper strands 201 is wrapped with a shielding layer 202 to avoid interference of the first steel strands 200 .

In addition, in some preferred embodiments, the conductive circuit 30 includes an outermost fixed layer 306 and several groups of metal wire bundles 304 wrapped in the fixed layer 306, and the surface layer of each group of metal wire bundles 304 is wrapped with an insulating layer 303; Specifically, referring to FIG. 3 , a set of sheaths 301 are provided at the center of the fixed layer 306 of the conductive circuit 30 , and a set of second steel strands 300 for strengthening the connection strength are passed through the sheaths 301 . A plurality of sets of wing plates 302 are radially arranged around the 301. In this embodiment, there are four sets of the wing plates 302, and a group of the metal wire bundles 304 is arranged in the area between each adjacent two sets of the wing plates 302. That is, in this embodiment, four groups of the metal wire bundles 304 are provided, and the surface of each group of the metal wire bundles 304 is provided with an insulating layer 303, and the four groups of the metal wire bundles 304 are wound and fixed on the protective layer 305 through the non-woven fabric layer. The outer side wall of the sleeve 301 is finally fixed by the fixing layer 306 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. A novel fireproof cable is characterized by comprising a flame-retardant rubber body (10), a signal line (20) and a conducting circuit (30), wherein the cross section outline of the flame-retardant rubber body (10) is in a straight notch shape, and the signal line (20) and the conducting circuit (30) penetrate into the flame-retardant rubber body (10) along one side of the cross section outline of the flame-retardant rubber body (10);

a plurality of layers of clamping cavities (100) are arranged in the cross section of the flame-retardant rubber body (10) between the signal line (20) and the conducting circuit (30) from top to bottom, and the width direction of each layer of clamping cavity (100) is parallel to the connecting line between the signal line (20) and the conducting circuit (30); a group of notches (101) are respectively arranged on the upper side and the lower side of the cross section of the flame-retardant rubber body (10) between the signal line (20) and the conducting circuit (30), and a connecting line between the two groups of notches (101) is perpendicular to a connecting line between the signal line (20) and the conducting circuit (30).

2. The novel fire-resistant cable of claim 1, wherein: the width of each group of clamping cavities (100) is equally divided by a connecting line between the two groups of notches (101).

3. The novel fire-resistant cable of claim 1, wherein: the signal line (20) comprises an epidermal layer (204), a filling layer (203) is wrapped in the epidermal layer (204), and a plurality of groups of copper stranded wires (201) and a plurality of groups of first steel stranded wires (200) are arranged in the filling layer (203) in a penetrating mode.

4. The novel fire-resistant cable of claim 3, wherein: and the outer side wall of the copper stranded wire (201) is wrapped with a shielding layer (202).

5. A novel fire-resistant cable according to claim 3 or 4, characterized in that: the plurality of groups of copper strands (201) and the plurality of groups of first steel strands (200) encircle the axis of the signal line (20) and are arranged in a circumferential array manner, and a group of first steel strands (200) is arranged between every two adjacent groups of copper strands (201).

6. The novel fire-resistant cable of claim 1, wherein: the conductive circuit (30) comprises a fixing layer (306) and a plurality of groups of metal wire bundles (304) wrapped in the fixing layer (306), and an insulating layer (303) wraps the surface layer of each group of metal wire bundles (304).

7. The novel fire-resistant cable of claim 6, wherein: a group of sheaths (301) are arranged at the center of the fixing layer (306) of the conductive circuit (30), and second steel strands (300) penetrate through the sheaths (301); a plurality of groups of wing plates (302) are radially arranged on the periphery of the sheath (301), and a group of metal wire harnesses (304) is respectively arranged in the area between every two adjacent groups of wing plates (302).

8. The novel fire-resistant cable according to claim 7, wherein: a plurality of groups of the metal wire harnesses (304) are wound and fixed on the outer side wall of the sheath (301) through a non-woven fabric layer (305).

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