CN214012586U

CN214012586U - Low-halogen low-smoke flame-retardant cable

Info

Publication number: CN214012586U
Application number: CN202023122074.2U
Authority: CN
Inventors: 徐安顺
Original assignee: Jiangsu Liwei Electronic Technology Co ltd
Current assignee: Jiangsu Liwei Electronic Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-20
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a low steamed low cigarette flame retarded cable, including fire-retardant sleeve pipe, its characterized in that: the fire-retardant sleeve pipe is equipped with mounting hole and inspection hole, is equipped with the installation pipe in the mounting hole, and the intraductal fixedly connected with cable body of installation, the interval is equipped with a plurality of groups detection device in the inspection hole, and there is the protective layer outside fire-retardant sheathed tube. The utility model discloses a set up fire-retardant sleeve pipe, can avoid the cable body to take place the spontaneous combustion because of overheated, set up detection device through the top of cable body again simultaneously, when the high temperature of cable body, detection device can give the user warning to let the user can carry out the outage with the cable body and handle, avoid the spontaneous combustion of cable body.

Description

Low-halogen low-smoke flame-retardant cable

Technical Field

The utility model relates to a flame retarded cable field especially relates to a low steamed low cigarette flame retarded cable.

Background

A cable, made of one or more mutually insulated conductors and an outer insulating sheath, transmits power or information from one point to another. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

In recent years, in a fire accident of a power system on a global scale, the rate of interruption of power supply of the power system due to ignition of a power cable tends to increase. Therefore, in places with a large amount of electrical equipment and densely laid cables such as power plants and transformer substations, the flame-retardant cable is adopted to prevent the fire from spreading, the flame-retardant cable is adopted to ensure uninterrupted power supply of an important loop, and the common flame-retardant cable can only cut off the fire after the cable is on fire, can not warn an operator before the fire occurs and still can cause property loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a low-halogen low-smoke flame-retardant cable, thereby solving the problems existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a low steamed low cigarette flame retarded cable, includes fire-retardant sleeve pipe, fire-retardant sleeve pipe is equipped with mounting hole and inspection hole, be equipped with the installation pipe in the mounting hole, the intraductal fixedly connected with cable body of installation, the interval is equipped with a plurality of detection device of group in the inspection hole, there is the protective layer fire-retardant sheathed tube the outside.

Preferably, the detection device comprises a first copper sheet, a second copper sheet is arranged at one end of the first copper sheet, L-shaped clamping pieces are fixedly connected to one ends of the first copper sheet and the second copper sheet, the two clamping pieces are fixed through welding, and a ground wire is arranged on the lower sides of the first copper sheet and the second copper sheet.

Preferably, two joint pieces form a square cavity jointly, two one side of joint piece all is equipped with curved draw-in groove, the common fixedly connected with inflation ball of two draw-in grooves.

Preferably, detection device still includes detection lamp pearl, one side of protective layer is equipped with a plurality of fixed orifices, detection lamp pearl and fixed orifices fixed connection, the hole bottom of fixed orifices is equipped with dodges the hole.

Preferably, a plurality of groups of cross-shaped reinforcing ribs are fixedly connected between the mounting holes and the mounting pipes, and inert gas is filled between the mounting holes and the mounting pipes.

The utility model has the advantages that: the utility model provides a low steamed low cigarette flame retarded cable can avoid the cable body to take place the spontaneous combustion because of overheated, sets up detection device through the top of cable body again simultaneously, and when the temperature of cable body was too high, detection device can give the user warning to let the user can cut off the power supply with the cable body and handle, avoid the spontaneous combustion of cable body.

Drawings

Fig. 1 is a schematic diagram of the basic structure of the present invention;

FIG. 2 is a sectional view A-A of FIG. 1;

fig. 3 is a partially enlarged view of fig. 1 at B.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1-3, the utility model provides a pair of low-halogen low-smoke flame-retardant cable, including fire-retardant sleeve pipe 1, fire-retardant sleeve pipe 1 is equipped with mounting hole 11 and inspection hole 12, be equipped with installation pipe 111 in the mounting hole 11, fixedly connected with cable body 112 in the installation pipe 111, the interval is equipped with a plurality of detection device 2 of group in the inspection hole 12, there is protective layer 3 fire-retardant sleeve pipe 1's the outside, fire-retardant sleeve pipe 1 is made by the fire-retardant polyolefin material of low smoke and zero halogen, when the spontaneous combustion takes place for somewhere of cable body 112, can hinder the intensity of a fire, avoid the intensity of a fire to spread other positions of cable body 112.

The detection device 2 comprises a first copper sheet 21, one end of the first copper sheet 21 is provided with a second copper sheet 22, one ends of the first copper sheet 21 and the second copper sheet 22 are fixedly connected with an L-shaped clamping sheet 23, the two clamping sheets 23 are fixed by welding a proper amount of soldering tin, the two clamping sheets 23 jointly form a square cavity, one sides of the two clamping sheets 23 are provided with arc-shaped clamping grooves 231, the two clamping grooves 231 are jointly and fixedly connected with expansion balls 232, the expansion balls 232 are made of high polymer materials with large thermal expansion coefficients, the lower sides of the first copper sheet 21 and the second copper sheet 22 are provided with ground wires 211, the first copper sheet 21 and the second copper sheet 22 are communicated through the two welded clamping sheets 23 in an initial state, when the temperature of the cable body 112 is too high, the soldering tin at the joint of the two clamping sheets 23 is heated and softened, the expansion balls 232 are heated and expanded to extrude the two clamping sheets 23, so that welding spots of the two clamping sheets 23 are separated, so that the first copper sheet 21 and the second copper sheet 22 are no longer conductive.

The detection device 2 further comprises a detection lamp bead 24, one side of the protection layer 3 is provided with a plurality of fixing holes, the detection lamp bead 24 is fixedly connected with the fixing holes, the hole bottoms of the fixing holes are provided with avoidance holes 25, positive and negative pins of the detection lamp bead 24 penetrate the avoidance holes 25 and are respectively connected with the first copper sheet 21 and contacts on the ground wire 211, when the first copper sheet 21 is conducted with the second copper sheet 22, current returns to the ground wire 211 from the first copper sheet 21 through the detection lamp bead 24 to form a complete loop, at the moment, the detection lamp bead 24 is lightened, when the first copper sheet 21 is separated from the second copper sheet 22, the detection lamp bead 24 is extinguished, and therefore a user is warned, the user can visually find abnormal parts of the cable body 112, and fire hazards are avoided.

Fixedly connected with criss-cross strengthening rib 113 of a plurality of groups between mounting hole 11 and installation pipe 111, through setting up strengthening rib 113 into the cross, can resist the pressure that vertically and two horizontal position transmitted, the security of cable body 112 has been promoted, it has inert gas to fill between mounting hole 11 and the installation pipe 111, fail to discover the anomaly of detecting lamp pearl 24 when the user, when leading to cable body 112 spontaneous combustion, inert gas can further avoid the intensity of a fire to spread other positions of cable body 112, and the flame retardant property is promoted.

When the cable is used, the positive and negative pins of the detection lamp bead 24 pass through the avoiding hole 25 and are respectively connected with the contacts on the first copper sheet 21 and the ground wire 211, the first copper sheet 21 and the second copper sheet 22 are communicated through the two welded clamping sheets 23 in an initial state, the detection lamp bead 24 is lighted, when the temperature of the cable body 112 is too high, the soldering tin at the joint of the two clamping sheets 23 is heated and softened, the expansion ball 232 is heated and expanded to extrude the two clamping sheets 23, so that the welding points of the two clamping sheets 23 are separated, the first copper sheet 21 and the second copper sheet 22 are not communicated, the detection lamp bead 24 is extinguished, so that a user is warned, the user can visually find the abnormal part of the cable body 112, and the occurrence of fire is avoided, if the user cannot timely detect the abnormality of the detection lamp bead 24, and when the cable body 112 is spontaneously combusted, the inert gas and the flame-retardant sleeve 1 can further avoid the fire from spreading to other parts of the cable body 112, improves the flame retardant property

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-halogen low-smoke flame-retardant cable comprises a flame-retardant sleeve (1) and is characterized in that: flame-retardant sleeve pipe (1) is equipped with mounting hole (11) and inspection hole (12), be equipped with installation pipe (111) in mounting hole (11), fixedly connected with cable body (112) in installation pipe (111), the interval is equipped with a plurality of detection device of group (2) in inspection hole (12), there is protective layer (3) outside of flame-retardant sleeve pipe (1).

2. A low-halogen low-smoke flame-retardant cable according to claim 1, characterized in that: the detection device (2) comprises a first copper sheet (21), a second copper sheet (22) is arranged at one end of the first copper sheet (21), L-shaped clamping sheets (23) are fixedly connected to one ends of the first copper sheet (21) and the second copper sheet (22), the two clamping sheets (23) are fixed through welding, and a ground wire (211) is arranged on the lower sides of the first copper sheet (21) and the second copper sheet (22).

3. A low-halogen low-smoke flame-retardant cable according to claim 2, characterized in that: two joint piece (23) form a square cavity jointly, two one side of joint piece (23) all is equipped with curved draw-in groove (231), and two draw-in grooves (231) are fixedly connected with inflation ball (232) jointly.

4. A low-halogen low-smoke flame-retardant cable according to claim 2, characterized in that: detection device (2) still include detection lamp pearl (24), one side of protective layer (3) is equipped with a plurality of fixed orifices, detection lamp pearl (24) and fixed orifices fixed connection, the hole bottom of fixed orifices is equipped with dodges hole (25).

5. A low-halogen low-smoke flame-retardant cable according to claim 1, characterized in that: a plurality of groups of cross reinforcing ribs (113) are fixedly connected between the mounting hole (11) and the mounting pipe (111), and inert gas is filled between the mounting hole (11) and the mounting pipe (111).