CN201536237U - Fire-proof device for laying electric cables in the buildings - Google Patents

Abstract

The utility model belongs to the technical field of fire-proofing for buildings, especially relates to a fire-proof device for laying electric cables in the building, which is characterized in that the device comprising a fire barrier with knock-off bores, an electric cable passing through the knock-off bores, a protection sheath coated outside the electric cable, and the outer surface of the protection sheath closely abuts against the knock-off bores. The diameter of the knock-off bores is matched with the outer diameter of the protection sheath coating the electric cable. The fire barrier is made from concrete, ceramic or macromolecular material. The protection sheath is made from asbestos or macromolecular material. The utility model has simple structure, convenient replacement, and great fire-proof and sealing effect. The repeated construction is avoided, the construction material is saved, and the labor intensity is lowered. The appearance quality of the construction position is improved, pollution of the fire-proof material to the environment is prevented, and the environment is purified.

Description

Fire protection device for laying cables in buildings

technical field

The utility model relates to the technical field of building fire prevention, in particular to a fire prevention device for laying cables in buildings.

Background technique

According to the requirements of power engineering cable design specifications 1, the openings where cables lead to electrical cabinets, panels, and platforms in cable structures, and the holes where cables run through partition walls and floors should be sealed with fire resistance; 2, in tunnels or cable trenches Fire-resistant walls shall be installed at the branches of the main channel; 3. Fire-resistant blockage and fire-resistant interlayers may use fire-resistant blocking materials, fillers or fire-resistant bags, etc. And the problem that prior art exists is:

1. When replacing or laying cables, it is necessary to remove the fire-blocking objects at the entrance of the hole, and then re-block them afterwards, resulting in a waste of manpower and material resources.

2. Existing fireproof partitions can only partially block the opening, and must be used in conjunction with fireproof blocking materials and fillers.

3. The compatibility of fireproof materials is not good, the surface is easy to drop slag, and the fireproof package is easy to break and leak materials, causing pollution to equipment and the environment. The dust during construction is large, which is harmful to the health of construction workers.

4. Use a fireproof package to seal the lower part of the electrical cabinet, panel, and platform, occupying the space in the electrical cabinet, panel, and platform. Moreover, the fireproof bag is easy to damage and leak materials, which will cause pollution to the equipment.

5. Due to the limitations of the material itself, the sensory quality of the sealing of the holes in the floor and partition walls is not good. Due to the existence of the above problems, the relevant fire protection regulations have not been strictly implemented in some occasions, leaving fire hazards.

Contents of the invention

The purpose of the utility model is to provide a fireproof device for laying cables in buildings with simple structure, convenient replacement and good fireproof sealing effect.

The purpose of this utility model is achieved through the following technical solutions:

A fireproof device for laying cables in a building of the utility model is characterized in that it consists of a fireproof partition with a knock-out hole, a cable passing through the knock-out hole, and a sheath wrapped on the outer surface of the cable. , the outer surface of the sheath abuts against the knock-out hole.

The diameter of the knockout matches the outer diameter of the sheath surrounding the cable.

The material of the fire barrier is concrete, ceramics or polymer materials.

The material of the sheath is asbestos or polymer material.

The utility model is characterized in that:

1. The structure is simple, easy to replace, and the fireproof sealing effect is good.

2. Avoid repeated construction, save construction materials and reduce labor intensity.

3. Improve the sensory quality of the construction site, prevent the pollution of the fireproof material to the environment, and purify the environment.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of Fig. 1 of the present utility model.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with accompanying drawing.

As shown in Figures 1 and 2, a fireproof device for laying cables in a building of the present invention is characterized in that it consists of a fireproof partition 1 with a knockout hole 4, and a cable 2 passing through the knockout hole 4 , is composed of a sheath 3 wrapping the outer surface of the cable 2, and the outer surface of the sheath 3 abuts against the knock-out hole 4.

The diameter of the knock-out hole 4 matches the outer diameter of the sheath 3 wrapping the cable 2, so that it can be firmly locked in the hole to achieve the effect of fireproof sealing.

The material of the fireproof partition 1 is concrete, ceramics or polymer materials, and the fireproofing effect is better.

The material of the sheath 3 is asbestos or polymer material, so that the fire prevention effect is better.

The fireproof partition 1 of the utility model is a fireproof partition with a knock-out hole 4 made of fireproof material and has a certain strength. On, or inlaid in the hole where the cable 2 passes through the partition wall, its dimensions should be determined according to the design or engineering needs, and its color should be determined according to the design or surrounding environment. And make some knock-out holes 4 according to the design or engineering needs on the fireproof partition 1, promptly wear the front fireproof partition 1 of cable 2 is intact without holes, when passing through the cable 2, according to the outer sheath 3 of wrapping up the cable 2 Knock out the corresponding hole, after the cable 2 passes through the knockout hole 4 on the fire barrier 1, wrap the cable 2 with a flexible sheath 3 and pass through the knockout hole 4, and the sheath 3 is tightly clamped Live in the knock-out hole 4 to achieve the effect of fireproof sealing.

Claims (4)

1. A fireproof device for laying cables in a building is characterized in that it is composed of a fire barrier with a knock-out hole, a cable passing through the knock-out hole, and a sheath wrapping the outer surface of this cable. The outer surface of the sheath abuts against the knock-out hole. 2. The fireproof device for laying cables in buildings according to claim 1, characterized in that the diameter of the knockout hole matches the outer diameter of the sheath wrapping the cable. 3. The fireproof device for laying cables in buildings according to claim 1, characterized in that the material of the fireproof partition is concrete, ceramics or polymer materials. 4. The fireproof device for laying cables in buildings according to claim 1, characterized in that the material of the sheath is asbestos or polymer material.

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