CN222927231U - Waterproof fire-resistant power cable - Google Patents

Abstract

The application provides a waterproof and fireproof power cable which comprises three conductive wire cores, wherein the outer walls of the three conductive wire cores are respectively wrapped with an insulating sleeve, the outer walls of the insulating sleeves are wrapped with waterproof sleeves, compression-resistant layers are filled between the waterproof sleeves and the insulating sleeves, reinforcing ribs are arranged in the compression-resistant layers, the outer walls of the waterproof sleeves are wrapped with fireproof sleeves, armor layers are arranged between the waterproof sleeves and the fireproof sleeves, and the outer walls of the fireproof sleeves are provided with protection mechanisms.

Description

Waterproof fire-resistant power cable

Technical Field

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

Background

The power cable is commonly used for urban underground power grids, power station leading-out lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river. The product is of a plurality of kinds and has a very wide application range, and relates to industries such as power, construction, communication, manufacturing and the like, which are closely related to various departments of national economy.

The fire resistance and the waterproof performance of the existing cable still need to be improved, and when the cable is used on the construction site, the conductor inside the cable is easy to damage due to extrusion, the normal use of the cable is affected, and in addition, the cable sheath is easy to wear when workers pull the cable.

Therefore, we make improvements to this and propose a waterproof fire-resistant power cable.

Disclosure of utility model

The utility model aims at solving the problems that the fireproof and waterproof performances of the existing cable still need to be improved, the cable is easy to damage due to the fact that conductors in the cable are extruded when the cable is used on a construction site, the normal use of the cable is affected, and in addition, the cable sheath is easy to wear when workers pull the cable.

In order to achieve the above object, the present utility model provides the following technical solutions:

Waterproof and fire-resistant power cables to ameliorate the above problems.

The application is specifically as follows:

Including the quantity for three conductive core, three conductive core outer wall all wraps up has insulating cover, insulating cover outer wall parcel has waterproof cover, it has the compressive layer to fill between waterproof cover and the insulating cover, be provided with the strengthening rib in the compressive layer, waterproof cover outer wall parcel has the fire prevention cover, be provided with the armor between waterproof cover and the fire prevention cover, the fire prevention cover outer wall is provided with protection machanism.

As the preferable technical scheme of the application, the wear-resistant sleeve, the fireproof sleeve, the armor layer, the waterproof sleeve, the compression-resistant layer and the insulating sleeve are sequentially arranged from outside to inside.

As a preferable technical scheme of the application, the insulating sleeve is made of crosslinked polyethylene.

As a preferable technical scheme of the application, the waterproof sleeve is made of high-density polyethylene.

As a preferable technical scheme of the application, the fireproof sleeve is made of halogen-free flame-retardant materials.

As a preferable technical scheme of the application, the wear-resistant sleeve is made of nitrile rubber.

As a preferable technical scheme of the application, the protection mechanism comprises rubber balls adhered to the outer wall of the wear-resistant sleeve.

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

In the scheme of the application:

1. The waterproof sleeve and the fireproof sleeve are arranged, so that the fireproof and waterproof performance is good, the fireproof material is halogen-free flame-retardant material, the fireproof and fireproof waterproof sleeve has the advantages of environmental protection, no toxicity, low smoke, no halogen and oxidation resistance, no toxic gas is released in case of fire, and the life safety of personnel is effectively ensured;

2. The compression resistance of the cable is increased through the compression resistance layer and the reinforcing ribs, so that the problem that the cable is easy to damage due to the fact that the conductor inside the cable is extruded when the cable is used on the construction site in the prior art is solved;

3. Through the wear-resisting cover that sets up, realized having good wear resistance, effectively prevented that the workman from being easily suffered wearing and tearing when drawing the cable, the cable sheath.

Drawings

Fig. 1 is a schematic structural view of a waterproof fire-resistant power cable provided by the application;

Fig. 2 is a schematic cross-sectional elevation structure of a waterproof fire-resistant power cable provided by the application;

fig. 3 is a schematic structural view of the waterproof fire-resistant power cable provided by the application.

The figures indicate:

1. The cable comprises a conductive wire core, an insulating sleeve, a compression-resistant layer, reinforcing ribs, a waterproof sleeve, an armor layer, a fireproof sleeve, a rubber ball, a wear-resistant sleeve and a rubber ball.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.

Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Examples:

As shown in fig. 1-3, the embodiment provides a waterproof and fireproof power cable, which comprises three conductive wire cores 1, wherein the outer walls of the three conductive wire cores 1 are wrapped with insulating sleeves 2, the outer walls of the insulating sleeves 2 are wrapped with waterproof sleeves 5, the waterproof sleeves 5 have good waterproof performance, a compression-resistant layer 3 is filled between each waterproof sleeve 5 and each insulating sleeve 2, reinforcing ribs 4 are arranged in each compression-resistant layer 3, the compression-resistant performance of the cable is improved, conductors inside the cable are prevented from being easily damaged after being extruded, the outer walls of the waterproof sleeves 5 are wrapped with fireproof sleeves 7, the fireproof materials are made of halogen-free flame-retardant materials, the waterproof cable has the advantages of being environment-friendly, nontoxic, low-smoke, halogen-free and oxidation-resistant, toxic gas is not released in case of fire, life safety of personnel is effectively guaranteed, an armor layer 6 is arranged between each waterproof sleeve 5 and each fireproof sleeve 7, each fireproof sleeve 7 is provided with a wear-resistant sleeve 9, so that the cable has good wear-resistant performance, and a cable outer wall is prevented from being easily worn by workers when the cable is pulled.

The wear-resistant sleeve 9, the fireproof sleeve 7, the armor layer 6, the waterproof sleeve 5, the compression-resistant layer 3 and the insulating sleeve 2 are sequentially arranged from outside to inside.

The insulating sleeve 2 is made of crosslinked polyethylene, has the advantages of simple structure, light weight, good heat resistance, strong loading capacity, no melting, chemical corrosion resistance and high mechanical strength, does not melt after being heated, and maintains excellent electrical performance.

In order to improve the waterproof performance of the cable, the waterproof sleeve 5 is made of high-density polyethylene, which is thermoplastic resin with relatively high crystallinity, has very good waterproof performance and also has an anti-electricity function, namely, has insulativity, so that the waterproof sleeve is suitable for laying wires and cables, and has very good high temperature resistance.

In order to improve the fire resistance of the cable, the fireproof sleeve 7 is made of halogen-free flame retardant materials, has the advantages of environmental protection, no toxicity, low smoke, no halogen and oxidation resistance, can not release toxic gas in case of fire, and effectively ensures the life safety of personnel.

In order to improve the wear resistance of the cable, the wear-resistant sleeve 9 is made of nitrile rubber, and the nitrile rubber has the advantages of good wear resistance, strong adhesion, good air tightness and good antistatic property, and effectively prevents the cable sheath from being worn easily when a worker pulls the cable.

In order to protect the cable further, the protection mechanism comprises a rubber ball 8 adhered to the outer wall of the wear-resistant sleeve 9, the rubber ball 8 can protect the cable further, and when the cable is placed on the ground, the cable can be prevented from directly contacting the ground, so that moisture is avoided.

Specifically, the waterproof jacket 5 and the fireproof jacket 7 enable the cable to have good fireproof and waterproof performances, the fireproof material is made of halogen-free flame retardant materials, the cable has the advantages of environmental protection, no toxicity, low smoke, no halogen and oxidation resistance, toxic gas is not released during fire, the life safety of personnel is effectively guaranteed, the reinforcing ribs 4 are arranged in the inner compression-resistant layer 3, the compression-resistant performance can be improved through the compression-resistant layer 3 and the reinforcing ribs 4, the conductor in the cable is prevented from being easily damaged after being extruded, and the wear-resistant jacket 9 is arranged on the outermost layer of the cable, so that the cable has good wear-resistant performance, and the cable sheath is prevented from being easily worn when the cable is pulled by workers.

All technical features in the embodiment can be freely combined according to actual needs.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (7)

1. The utility model provides a waterproof fire-resistant power cable, includes conductive core (1) that quantity is three, its characterized in that, three conductive core (1) outer wall all wraps up has insulating cover (2), insulating cover (2) outer wall parcel has waterproof cover (5), it has compressive layer (3) to fill between waterproof cover (5) and insulating cover (2), be provided with strengthening rib (4) in compressive layer (3), waterproof cover (5) outer wall parcel has fire prevention cover (7), be provided with armor (6) between waterproof cover (5) and fire prevention cover (7), fire prevention cover (7) outer wall sets up wear-resisting cover (9), wear-resisting cover (9) outer wall is provided with protection machanism.

2. The waterproof and fireproof power cable according to claim 1, wherein the wear-resistant sleeve (9), the fireproof sleeve (7), the armor layer (6), the waterproof sleeve (5), the compression-resistant layer (3) and the insulating sleeve (2) are sequentially arranged from outside to inside.

3. A waterproof and fire-resistant power cable according to claim 2, characterized in that the insulating sheath (2) is made of crosslinked polyethylene.

4. A waterproof and fire-resistant power cable according to claim 2, characterized in that the waterproof jacket (5) is made of high-density polyethylene.

5. A waterproof and fire-resistant power cable according to claim 2, characterized in that the material of the fireproof sheath (7) is a halogen-free flame-retardant material.

6. A waterproof and fire-resistant power cable according to claim 2, characterized in that the wear-resistant sheath (9) is made of nitrile rubber.

7. A waterproof and fire-resistant power cable according to claim 1, characterized in that the protection means comprise rubber balls (8) glued to the outer wall of the wear sleeve (9).