Low-voltage fire-resistant control cable for fire-fighting system

Abstract

The utility model discloses a low-voltage fire-resistant control cable for a fire-fighting system, which comprises a sheath, a flame-retardant belt is fixedly arranged on the inner side of the sheath, a single-sided aluminum foil is fixedly arranged on one side of the flame-retardant belt far away from the sheath, an area is formed between one side of the single-sided aluminum foil and the flame-retardant belt, a grounding wire is arranged in the area, and a plurality of insulating wires are arranged in the single-sided aluminum foil. A conductor is arranged in the insulated wire and is a single-core pure copper conductor, the sheath is composed of two half sheaths, each half sheath comprises a base layer, the base layer is made of a flame-retardant ceramic low-smoke halogen-free sheath material, a flame-retardant layer is fixedly arranged on the outer side of the base layer, an insulating layer is fixedly arranged on one side, far away from the base layer, of the flame-retardant layer, and the flame-retardant layer is made of a flame-retardant ceramic low-smoke halogen-free sheath material. According to the utility model, the problems that the production efficiency is low, the cost is high, and the fireproof performance is easy to damage when the cable is bent due to the fact that mica tape wrapping is adopted in the traditional fireproof cable technology are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to control cable technical field especially relates to a low pressure fire -resistant control cable for fire fighting system. BACKGROUND

[0002] Control cable is suitable for industrial and mining enterprises, energy transportation department, supply alternating current rated voltage 450 / 750 volts below control, protection line etc. occasion uses polyvinyl chloride insulation, polyvinyl chloride sheath control cable, and the cable is not only simply burned by flame in real fire scene, but also is impacted and vibrated by the collapse of various objects or building components, and the impact and spraying of fire water in the process of fire fighting.

[0003] Traditional fire -resistant cable process adopts mica tape wrapping, and the production efficiency is low, the cost is also high, and the fire -resistant performance is easy to be damaged when bending, therefore the utility model provides a low pressure fire -resistant control cable for fire fighting system UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model aims at providing a low pressure fire -resistant control cable for fire fighting system.

[0005] To realize the above -mentioned purpose, the utility model provides a low pressure fire -resistant control cable for fire fighting system, including the sheath, the sheath inside fixedly arranged with fire -retardant band, the fire -retardant band away from the side fixedly arranged with single -sided aluminum foil of sheath, the single -sided aluminum foil one side with the fire -retardant band interval forms the region, installs the ground wire in the region, the single -sided aluminum foil is provided with a plurality of insulated wires, the insulated wire is provided with the conductor, the conductor is single -core pure copper conductor, the sheath is formed by two half sheaths, the half sheath includes base layer, the base layer is made of fire -retardant ceramic low -smoke halogen -free sheath material.

[0006] Further, the outer side of the base layer is fixedly provided with a fire -retardant layer, the fire -retardant layer is fixedly provided with an insulating layer away from the base layer, and the insulating layer is fixedly provided with a waterproof layer away from the fire -retardant layer.

[0007] Further, the two half sheaths are connected through a mounting mechanism, the mounting mechanism includes a plug rod, and the two half sheaths are connected through a mounting mechanism.

[0008] Further, the other half sheath top two sides are respectively provided with a plurality of insertion grooves, one side of the insertion groove is provided with a clamping groove, the plug rod is matched with the insertion groove, and the clamping groove is matched with the clamping groove.

[0009] Further, the spring mechanism comprises a telescopic rod, the telescopic rod comprises a fixed rod and a movable rod, a spring is sleeved on the movable rod, one end of the spring is fixedly connected with the movable rod, and the other end of the spring is fixedly connected with the fixed rod.

[0010] Further, the surface of the spring is provided with rust-proof paint, the longitudinal section of the clamping block is a right-angled trapezoid, and the longitudinal section of the bottom end of the inserting rod is an isosceles trapezoid.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a single-core pure copper conductor is extruded and is insulated by ceramic silicon rubber, realizes continuous extrusion production, and the ceramic silicon rubber can keep certain insulation performance for a long time in the flame, the shielding uses fireproof single-side aluminum foil, and the shielding transmission signal can also play a certain fireproof role.

[0013] The utility model discloses a cable when winding blocks the fire -retardant tape, strengthens the fire -resistant performance, satisfies 180 minutes cable in the flame still keeps the line integrity, the utility model discloses the sheath adopts the fire -retardant ceramic low smoke halogen -free sheath material, and the sheath can sinter into a shell when burning, makes cable in the flame still can keep the integrity of line, through the insulating layer that sets up, guarantees the insulation performance of sheath, through the waterproof layer that sets up, improved the waterproof performance of sheath;

[0014] Through setting up the inserting rod, the clamping block, the slot, the clamping groove and the spring, two half sheaths are close to each other, the inserting rod is inserted into the slot, and the clamping block is clamped into the clamping groove under the action of the spring, so that the two half sheaths can be installed, and the two half sheaths are convenient to install and disassemble and are convenient to reuse. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the scheme in the utility model, the following will be to the utility model embodiment description needed to use a simple introduction to the drawings, obviously, the following description in the drawings is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, according to these drawings, other drawings can also be obtained.

[0016] Figure 1 It is the structural schematic diagram provided by the utility model;

[0017] Figure 2 It is the half sheath structural schematic diagram provided by the utility model;

[0018] Figure 3 It is the two half sheath connecting structural schematic diagram provided by the utility model;

[0019] Figure 4Is the spring mechanism structure schematic diagram provided by the utility model.

[0020] Mark explanation:

[0021] 1, conductor; 2, insulating wire; 3, sheath; 31, half sheath; 311, waterproof layer; 312, insulating layer; 313, flame-retardant layer; 314, base layer; 4, flame-retardant tape; 5, ground wire; 6, single-sided aluminum foil; 7, mounting mechanism; 71, clamping groove; 72, insertion slot; 73, insertion rod; 74, clamping block; 75, placing groove; 76, spring mechanism; 761, spring; 762, telescopic rod; 7621, movable rod; 7622, fixed rod; 8, area. Specific implementation

[0022] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] The terms "include" and "have" and any variations thereof in the specification and claims of the utility model and the above drawing explanation are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the utility model or the above drawings are used to distinguish different objects, not to describe a specific order.

[0024] Please refer to Figures 1-4The utility model provides a low pressure fire -resistant control cable for fire -fighting system, including the sheath 3, the inside fixed setting of sheath 3 has fire -retardant tape 4, fire -retardant tape 4 is fixedly set with single -sided aluminium foil 6 away from the side of sheath 3, and the region 8 is formed between the side of single -sided aluminium foil 6 and fire -retardant tape 4, and the ground wire 5 is installed in the region 8, and a plurality of insulating wires 2 are arranged in single -sided aluminium foil 6, and the conductor 1 is arranged in insulating wire 2, and the conductor 1 is single -core pure copper conductor, and the sheath 3 is formed by two half sheaths 31, and the half sheath 31 includes base layer 314, and the base layer 314 is made of fire -retardant ceramic low smoke halogen -free sheath material, and the conductor 1 is single -core pure copper conductor by setting, and the ceramic silicone rubber insulation is extruded, realizes continuous extrusion production, and the ceramic silicone rubber insulation can still keep certain insulation performance in the flame for a long time, and the shielding uses fire -resistant single -sided aluminium foil 6, and the shielding transmission signal can also play certain fire -proof effect, and the sheath 3 uses fire -retardant ceramic low smoke halogen -free sheath material, and the sheath can sinter into shell when burning, so that the cable can still keep the integrity of line in the flame, and the problem that the traditional fire -resistant cable process adopts mica tape wrapping, and the production efficiency is relatively low, and the cost is also relatively high, and the fire -resistant performance is easily damaged when bending is solved;

[0025] As the improvement of the above technical scheme, the outer side of the base layer 314 is fixedly provided with a fire -retardant layer 313, the side away from the base layer 314 of the fire -retardant layer 313 is fixedly provided with an insulating layer 312, and the side away from the fire -retardant layer 313 of the insulating layer 312 is fixedly provided with a waterproof layer 311, the fire -retardant tape 4 is wrapped when cabling by setting the fire -retardant layer 313, and the fire -resistant performance is strengthened, the cable can still keep the integrity of line in the flame within 180 minutes, the insulating performance of the sheath 3 is ensured by setting the insulating layer 312, and the waterproof performance of the sheath 3 is improved by setting the waterproof layer 311;

[0026] As the improvement of the above technical scheme, the two half sheaths 31 are connected through the mounting mechanism 7, the mounting mechanism 7 comprises a plurality of insertion rods 73, one of the half sheaths 31 is provided with the insertion rods 73 on both sides of the bottom, the outer wall of the insertion rod 73 is provided with a placing groove 75, the placing groove 75 is provided with a clamping block 74, the inner side of the placing groove 75 is fixedly provided with a spring mechanism 76, the spring mechanism 76 is fixedly connected with the clamping block 74, the other half sheath 31 is provided with a plurality of insertion slots 72 on both sides of the top, the insertion slot 72 is provided with a clamping groove 71 on one side, the insertion rod 73 is matched with the insertion slot 72, the clamping block 74 is matched with the clamping groove 71, the spring mechanism 76 comprises a telescopic rod 762, the telescopic rod 762 comprises a fixed rod 7622 and a movable rod 7621, the movable rod 7621 is sleeved with a spring 761, one end of the spring 761 is fixedly connected with the movable rod 7621, the other end of the spring 761 is fixedly connected with the fixed rod 7622, the surface of the spring 761 is provided with rust-proof paint, the longitudinal section of the clamping block 74 is a right trapezoid, the bottom end of the insertion rod 73 is an isosceles trapezoid, through the insertion rod 73, the clamping block 74, the insertion slot 72, the clamping groove 71 and the spring 761, the two half sheaths 31 are close to each other, the insertion rod 73 is inserted into the insertion slot 72, and the clamping block 74 is clamped into the clamping groove 71 under the action of the spring 761, so that the two half sheaths 31 can be installed, and the two half sheaths 31 are convenient to install and disassemble and are convenient to reuse.

[0027] The working principle and the using method of the utility model:

[0028] The conductor 1 is a single-core pure copper conductor, is extruded with ceramic silicone rubber insulation, realizes continuous extrusion production, and the ceramic silicone rubber insulation can still maintain certain insulation performance for a long time in a flame. The shielding uses fireproof single-sided aluminum foil 6, which can shield transmission signals and also has a certain fireproof effect. The sheath 3 uses fire-retardant ceramic low-smoke halogen-free sheath material, and the sheath can be sintered into a shell when burning, so that the cable can still maintain the integrity of the line in the flame. The fire-retardant layer 313 is provided, the fire-retardant tape 4 is wrapped during cabling, and the fireproof performance is improved. The cable can still maintain the integrity of the line in the flame for 180 minutes. The insulation layer 312 is provided, the insulation performance of the sheath 3 is ensured, the waterproof layer 311 is provided, the waterproof performance of the sheath 3 is improved, the two half sheaths 31 are close to each other, the insertion rod 73 is inserted into the insertion slot 72, and the clamping block 74 is clamped into the clamping groove 71 under the action of the spring 761, so that the two half sheaths 31 can be installed, and the two half sheaths 31 are convenient to install and disassemble and are convenient to reuse.

[0029] The above merely aims to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those ordinarily skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features therein; any equivalent structure or equivalent process conversion made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A low voltage fire resistant control cable for use in a fire protection system, characterized by: The utility model relates to a kind of cable, including sheath (3), the sheath (3) inside fixedly provided with fire-retardant band (4), the fire-retardant band (4) is fixedly provided with single-sided aluminum foil (6) away from the side of the sheath (3), the side of the single-sided aluminum foil (6) and the fire-retardant band (4) form area (8), the area (8) is installed with ground wire (5), the single-sided aluminum foil (6) is provided with several insulated wires (2), the insulated wire (2) is provided with conductor (1), the conductor (1) is single-core pure copper conductor, the sheath (3) is made of two half sheaths (31), the half sheath (31) includes base layer (314), the base layer (314) is made of fire-retardant ceramic low-smoke halogen-free sheath material.

2. A low voltage fire resistant control cable for fire fighting systems according to claim 1, characterized in that: The outer side of the base layer (314) is fixedly provided with a fire-retardant layer (313), and the fire-retardant layer (313) is fixedly provided with an insulating layer (312) away from the base layer (314). The insulating layer (312) is fixedly provided with a waterproof layer (311) away from the fire-retardant layer (313).

3. A low voltage fire resistant control cable for fire fighting systems according to claim 2, characterized in that: The two half sheaths (31) are connected by a mounting mechanism (7), the mounting mechanism (7) includes a plug rod (73), and each of the two half sheaths (31) is fixedly provided with a plurality of plug rods (73) on both sides of the bottom. A placing groove (75) is formed in the outer wall of the plug rod (73), and a clamping block (74) is arranged in the placing groove (75). A spring mechanism (76) is fixedly arranged on the inner side of the placing groove (75), and the spring mechanism (76) is fixedly connected with the clamping block (74).

4. A low voltage fire resistant control cable for fire fighting systems according to claim 3, characterized in that: The other half sheath (31) is provided with a plurality of insertion grooves (72) on both sides of the top, and a clamping groove (71) is formed in one side of the insertion groove (72). The plug rod (73) is matched with the insertion groove (72), and the clamping block (74) is matched with the clamping groove (71).

5. A low voltage fire resistant control cable for fire fighting systems according to claim 4, characterized in that: The spring mechanism (76) includes a telescopic rod (762), and the telescopic rod (762) includes a fixed rod (7622) and a movable rod (7621). A spring (761) is sleeved on the movable rod (7621), one end of the spring (761) is fixedly connected with the movable rod (7621), and the other end of the spring (761) is fixedly connected with the fixed rod (7622).

6. A low voltage fire resistant control cable for a fire protection system according to claim 5, characterized in that: The surface of the spring (761) is provided with rust-proof paint, the longitudinal section of the clamping block (74) is a right trapezoid, and the bottom end of the plug rod (73) is an isosceles trapezoid.

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