Flame-retardant alarm cable

Abstract

The utility model discloses a flame-retardant alarm cable which comprises a first protective layer, a flexible steel belt is arranged in the first protective layer in a lap joint mode, a woven aluminum wire shielding layer is arranged in the flexible steel belt in a lap joint mode, and a second protective layer is arranged in the woven aluminum wire shielding layer in a lap joint mode. The interior of the second protective layer is filled with a glass fiber rope, and the interior of the glass fiber rope is provided with a moisture-proof isolation layer in a lap joint mode. According to the flame-retardant alarm cable, the situation that elements of surrounding alarm equipment are affected is avoided, the situation that the moisture-proof isolation layers or the wires are twisted and wound is avoided, the cable can be bent and shaped according to needs, use is convenient, the situation that a traditional flame-retardant alarm cable is single in structure, and it is difficult to keep smooth signals in a severe environment is solved, and the flame-retardant alarm cable is suitable for popularization and application. The probability of cable damage faults when accidents occur is reduced, the alarm device can stably carry out alarm work, personal safety and property losses are reduced, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety cables, in particular to a flame-retardant alarm cable. Background Art

[0002] An alarm device is a device in an automatic alarm system that sends out a fire alarm signal that is different from the ambient sound and light. The alarm is the most basic alarm device, usually combined with an alarm controller. It sends an alarm signal to the alarm area in the form of sound and light to warn people to take safe evacuation measures. In the early stage, ensure that the physical quantity is collected through automatic fire detection, and the alarm position is displayed on the screen of the control room or duty room in the area through cable communication, so that effective measures can be taken in time to minimize the loss of life and property. In this process, the transmission cable plays a vital role.

[0003] However, the traditional flame-retardant alarm cable has a single structure and is difficult to meet the signal requirements in harsh environments. The probability of damage and failure is high at the critical moment when an accident occurs, which can easily lead to increased property and personal safety losses and pose a huge safety hazard. Therefore, a flame-retardant alarm cable is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a flame retardant alarm cable for solving the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flame retardant alarm cable comprises a protective layer one, wherein the internal overlap of the protective layer one is provided with a flexible steel belt, the internal overlap of the flexible steel belt is provided with a braided aluminum wire shielding layer, the internal overlap of the braided aluminum wire shielding layer is provided with a protective layer two, the internal filling of the protective layer two is provided with a glass fiber rope, the internal overlap of the glass fiber rope is provided with a moisture-proof isolation layer, the internal filling of the moisture-proof isolation layer is provided with a PP rope, the interior of the PP rope is provided with a conductor, and the internal overlap of the glass fiber rope is provided with a shaping wire.

[0007] Preferably, the protective layer 1 and the protective layer 2 are both tubular structures, and the protective layer 1 and the protective layer 2 are both made of PVC material.

[0008] Preferably, the number of the moisture-proof isolation layers is three, and the three moisture-proof isolation layers are distributed in a circular array.

[0009] Preferably, the surface of the conductor is covered with an insulating layer, and the surface of the insulating layer is overlapped with the PP rope.

[0010] Preferably, the shaping wire has a circular structure and is made of steel.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the flame retardant alarm cable protects the wires through the protective layer 1, the flexible steel belt and the braided aluminum wire shielding layer, so that the cable's resistance to damage and interference is improved, and the magnetic field that may be generated around the current is prevented from affecting the components of the surrounding alarm equipment. By using glass fiber rope and PP rope for filling, the twisting and entanglement between moisture-proof isolation layers or between wires is avoided. Through the setting of the shaping wire, the cable can be bent and shaped as needed, which is easy to use. It solves the problem that the traditional flame retardant alarm cable has a single structure and is difficult to keep the signal unobstructed in harsh environments, reduces the probability of cable damage and failure in the event of an accident, can stably enable the alarm equipment to alarm, reduces personal safety and property losses, and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the structural survey drawing of the utility model;

[0013] Figure 2 This is a front cross-sectional view of the structure of the utility model;

[0014] Figure 3 It is a top sectional view of the structure of the utility model.

[0015] In the figure: 1. Protective layer one; 2. Flexible steel belt; 3. Braided aluminum wire shielding layer; 4. Protective layer two; 5. Glass fiber rope; 6. Moisture-proof isolation layer; 7. PP rope; 8. Conductor; 9. Molding wire. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Reference Figure 1-3A flame retardant alarm cable comprises a protective layer 1, a flexible steel belt 2 is overlapped inside the protective layer 1, a braided aluminum wire shielding layer 3 is overlapped inside the flexible steel belt 2, a protective layer 2 4 is overlapped inside the braided aluminum wire shielding layer 3, the protective layer 1 1 and the protective layer 2 4 are both tubular structures, and the protective layer 1 1 and the protective layer 2 4 are both made of PVC material, and the protective layer 1 1 and the protective layer 2 4 cooperate with each other, not only the safety strength of the cable is improved, but also the situation that the flexible steel belt 2 and the braided aluminum wire shielding layer 3 cause damage to other internal structures is avoided, the protective layer 2 4 is filled with a glass fiber rope 5, and the internal overlap of the glass fiber rope 5 is provided with a moisture-proof isolation layer 6, the gap is filled with the glass fiber rope 5, so that the spread of the fire during combustion is slowed down, the number of moisture-proof isolation layers 6 is three, and the three moisture-proof isolation layers 6 are distributed in a circular array, and the wire 8 is isolated and protected again by the moisture-proof isolation layer 6, so as to further improve the safety of the wire 8, the moisture-proof isolation layer 6 is filled with a PP rope 7, and the internal arrangement of the PP rope 7 There is a conductor 8, the surface of the conductor 8 is covered with an insulating layer, and the surface of the insulating layer is overlapped with the PP rope 7, and the internal overlap of the glass fiber rope 5 is provided with a shaping wire 9, the shaping wire 9 is a circular structure, and the shaping wire 9 is made of steel, which is convenient for shaping the cable and improves the usability. The flame retardant alarm cable protects the conductor 8 through the protective layer 1, the flexible steel belt 2 and the braided aluminum wire shielding layer 3, so that the cable's anti-breakage ability and anti-interference ability are improved, and the situation that a magnetic field may be generated around the current and affect the components of the surrounding alarm equipment is prevented. By using the glass fiber rope 5 and the PP rope 7 for filling, the twisting and winding between the moisture-proof isolation layer 6 or between the conductors 8 is avoided. Through the setting of the shaping wire 9, the cable can be bent and shaped as needed, which is easy to use, solves the problem that the traditional flame retardant alarm cable has a single structure and is difficult to keep the signal unobstructed in harsh environments, reduces the probability of cable damage and failure in the event of an accident, can stably enable the alarm equipment to alarm, reduces personal safety and property losses, and improves safety.

[0018] During use: the protective layer 1 is provided to ensure basic moisture-proof, waterproof and insulating effects; the flexible steel belt 2 and the braided aluminum wire shielding layer 3 ensure the structural strength of the cable to avoid damage caused by being gnawed by mice or collided and squeezed by hard objects; at the same time, it prevents the magnetic field that may be generated around the current and affect the components of the surrounding alarm equipment; the moisture-proof isolation layer 6 is separated by the protective layer 2 4 and the glass fiber rope 5 to avoid damage to the moisture-proof isolation layer 6 caused by the braided aluminum wire shielding layer 3 and the flexible steel belt 2; the wire 8 is isolated and protected again by the moisture-proof isolation layer 6 to improve safety; the wire 8 and the moisture-proof isolation layer 6 are filled with the PP rope 7 to prevent twisting and entanglement between the wires 8; and the shaping wire is provided between the moisture-proof layers 9 to facilitate the staff to position and place the cable when installing the line, making it more convenient to install the cable.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame retardant alarm cable, comprising a protective layer (1), characterized in that: The first protective layer (1) is overlapped internally with a flexible steel belt (2), the flexible steel belt (2) is overlapped internally with a braided aluminum wire shielding layer (3), the braided aluminum wire shielding layer (3) is overlapped internally with a second protective layer (4), the second protective layer (4) is filled internally with a glass fiber rope (5), the glass fiber rope (5) is overlapped internally with a moisture-proof isolation layer (6), the moisture-proof isolation layer (6) is filled internally with a PP rope (7), the PP rope (7) is internally provided with a conductive wire (8), and the glass fiber rope (5) is overlapped internally with a shaping wire (9).

2. A flame retardant alarm cable according to claim 1, characterized in that: The protective layer 1 (1) and the protective layer 2 (4) are both tubular structures, and the protective layer 1 (1) and the protective layer 2 (4) are both made of PVC material.

3. The flame retardant alarm cable according to claim 1, characterized in that: The number of the moisture-proof isolation layers (6) is three, and the three moisture-proof isolation layers (6) are distributed in a circular array.

4. The flame retardant alarm cable according to claim 1, characterized in that: The surface of the conductor (8) is covered with an insulating layer, and the surface of the insulating layer is overlapped with the PP rope (7).

5. The flame retardant alarm cable according to claim 1, characterized in that: The shaping wire (9) is in a circular structure and is made of steel.

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