CN218918501U

CN218918501U - Flexible mineral fireproof water-blocking cable

Info

Publication number: CN218918501U
Application number: CN202223522936.XU
Authority: CN
Inventors: 石忆娟
Original assignee: Shenzhen Libo Electric Technology Co ltd
Current assignee: Shenzhen Libo Electric Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-25
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of cables and discloses a flexible mineral fireproof water-blocking cable which comprises a cable guide core, wherein a cross is connected to the outer surface of the cable guide core, a filling layer is connected to the outer surface of the cable guide core, a wrapping layer is connected to the outer surface of the filling layer, a braiding layer is connected to the outer surface of the wrapping layer, and an inner protection layer is connected to the outer surface of the braiding layer. The flexible mineral fireproof water-blocking cable has the advantages that the cross is made of high-temperature-resistant rubber, the flexible mineral fireproof water-blocking cable has excellent dragging-resistant and elastic recovery performances, the flexibility of the flexible mineral cable is guaranteed, the service life of the flexible mineral fireproof water-blocking cable is prolonged, the flexible mineral fireproof water-blocking cable is not water-absorbing, corrosion-resistant, mildew-resistant, friction-resistant, long in service life and the like due to the fact that the filling layer is the PP rope, the possibility of wetting is effectively avoided, the waterproof insulating tape of the waterproof layer improves the water-blocking effect of the flexible mineral cable, and the situation that the flexible mineral cable is wetted is avoided.

Description

Flexible mineral fireproof water-blocking cable

Technical Field

The utility model relates to the technical field of cables, in particular to a flexible mineral fireproof water-blocking cable.

Background

The mineral insulated cable is divided into two types of rigidity and flexibility, and the flexible mineral insulated cable is born in the middle seventies of the last century, has the remarkable characteristics of good flexibility, moisture resistance, corrosion resistance, interference resistance and the like, and has very wide market prospect.

According to the utility model, the fire-resistant layer is provided with a glass fiber product for preventing moisture and improving the protection property, but the glass fiber has the defects of brittleness and poor wear resistance, and the flexible cable is required to slow down the wear rate of the cable in continuous reciprocating movement through flexible materials, but the glass fiber reduces the wear resistance effect, so that the service life of the cable is reduced, and the use of a user is not facilitated, so that the flexible mineral fire-resistant water-blocking cable is provided for solving the problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the flexible mineral fireproof water-blocking cable with the advantages of improving the wear-resisting effect, guaranteeing the flexibility and the like.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flexible mineral fire prevention cable that blocks water, includes the cable core, the surface connection of cable core has the cross, the surface connection of cable core has the filling layer, the surface connection of filling layer has the parcel layer, the surface connection of parcel layer has the weaving layer, the surface connection of weaving layer has interior sheath, the surface connection of interior sheath has the waterproof layer, the surface connection of waterproof layer has the armor, the surface connection of armor has fire-retardant layer, the surface connection of fire-retardant layer has the oversheath.

Further, the wrapping layer is silane crosslinked polyethylene, and the filling layer is PP rope.

Further, the braiding layer is a Kevlar fiber layer, and the inner protecting layer is a high-density polyethylene layer.

Further, the waterproof layer is a waterproof insulating tape, and the armor layer is a stainless steel hose.

Further, the inner side and the outer side of the armor are both provided with isolation buffer sleeves, the inner side of each isolation buffer sleeve is attached to the outer surface of the waterproof layer, and the outer side of each isolation buffer sleeve is attached to the outer surface of the flame-retardant layer.

Further, the flame-retardant layer is a halogen-free crosslinked polyethylene insulating layer, and the outer sheath is a polyvinyl chloride sheath.

(III) beneficial effects

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. the flexible mineral fireproof water-blocking cable has the advantages that the cross is made of high-temperature-resistant rubber, the cable has excellent dragging resistance and elastic recovery performance, the flexible mineral cable can be quickly recovered even in a twisted state, the service life of the flexible mineral cable is prolonged, the PP rope is made of polypropylene through the arrangement of the filling layer, the moisture-blocking cable is free of water absorption, corrosion-resistant, mildew-resistant, friction-resistant, long in service life and the like, the possibility of moisture absorption of the cable guide core is effectively avoided, the waterproof insulating tape of the waterproof layer greatly improves the water-blocking effect of the flexible mineral cable, and the moisture absorption of the flexible mineral cable is avoided.

2. According to the flexible mineral fireproof water-blocking cable, the stainless steel hose of the armor layer provides the effects of compression resistance, bending resistance and rat bite resistance for the flexible mineral cable, the stainless steel hose can be matched with the flexible mineral cable to be used, the flexible characteristics of the flexible mineral cable are guaranteed, the strength, wear resistance, tear resistance, heat resistance, flame retardance and antistatic ability of the flexible mineral cable are improved through the Kevlar fiber layer of the braid layer, and the wear resistance of the flexible mineral cable is further improved.

Drawings

FIG. 1 is a schematic view of a partial three-dimensional structure of the present utility model;

FIG. 2 is a front view of the present utility model;

fig. 3 is a partial left side cross-sectional view of the present utility model.

In the figure: 1 cable conductor, 2 cross, 3 filling layer, 4 wrapping layer, 5 weaving layer, 6 inner sheath, 7 waterproof layer, 8 armor layer, 9 flame retardant coating, 10 oversheath.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-3, the flexible mineral fireproof water-blocking cable in this embodiment includes a cable guide core 1, the outer surface of the cable guide core 1 is connected with a cross 2, and is made of high temperature resistant rubber material, which has excellent drag resistance and elastic recovery performance, and can be quickly recovered even in a twisted state, the outer surface of the cable guide core 1 is connected with a filling layer 3, the filling layer 3 is made of polypropylene rope, the outer surface of the filling layer 3 is connected with a wrapping layer 4, the wrapping layer 4 is silane crosslinked polyethylene, which is made of corrosion resistant, heat resistant, insulating and flame retardant material, the outer surface of the wrapping layer 4 is connected with a braiding layer 5, the braiding layer 5 is kevlar fiber layer which has high strength, high wear resistance, high tear resistance, heat resistance, flame retardance and antistatic ability, the outer surface of the braiding layer 5 is connected with an inner sheath 6, the inner sheath 6 is made of high-density polyethylene and has high hardness, tensile strength and creep property, the wear resistance, electrical insulation, toughness and cold resistance are better, the outer surface of the inner sheath 6 is connected with a waterproof layer 7, the waterproof layer 7 is made of a material developed by high-molecular barrier materials, the waterproof insulating tape has excellent electrical insulation, high adhesiveness, waterproof air tightness, high and low temperature resistance and chemical corrosion resistance, the outer surface of the waterproof layer 7 is connected with an armor layer 8, the armor layer 8 has the effects of compression resistance, bending resistance and mouse bite resistance for a stainless steel hose, the outer surface of the armor layer 8 is connected with a flame retardant layer 9, the flame retardant layer 9 is a halogen-free crosslinked polyethylene insulating layer, the flame retardant property is better, no halogen acid gas is emitted during cable combustion, the fuming amount of the cable is small, and corrosive gas generated during combustion is also small, the outer surface of the flame-retardant layer 9 is connected with an outer sheath 10, the outer sheath 10 is a polyvinyl chloride sheath, and a halogen-free flame retardant is added in the production, so that the heat-resistant flame-retardant effect of the polyvinyl chloride sheath is further improved, and the generation amount and corrosiveness of smoke during combustion are reduced.

In fig. 2 and 3, by setting the isolation buffer sleeve, the armor layer 8 is prevented from wearing the waterproof layer 7 and the flame-retardant layer 9 when the cable is bent or moved, so that the waterproof effect and the flame-retardant effect are reduced, and the service life of the flexible mineral cable is prolonged.

In fig. 2 and 3, the outer sheath 10, the flame retardant layer 9 and the woven layer 5 are arranged, and the polyvinyl chloride sheath, the halogen-free crosslinked polyethylene insulating layer and the kevlar fiber layer are utilized to provide multiple heat-resistant flame-retardant protection for the flexible mineral cable, so that the service life of the flexible mineral cable is prolonged.

In practice, the method is carried out according to the following steps:

the cross 2 made of high-temperature-resistant rubber is arranged on the outer surface of the cable guide core 1, flexibility is improved, wear resistance is improved, the filling layer 3 formed by PP ropes is arranged on the outer surface of the cable guide core 1, the cable guide core has the characteristics of no water absorption, corrosion resistance, no mildew, abrasion resistance and the like, the wrapping layer 4 made of silane crosslinked polyethylene is arranged on the outer surface of the filling layer 3 and used for corrosion resistance, heat resistance and insulation, the braiding layer 5 formed by Kevlar fibers is arranged on the outer surface of the wrapping layer 4, the braiding layer 5 has high strength, high wear resistance and high tear resistance, the inner protective layer 6 formed by high-density polyethylene is arranged on the outer surface of the braiding layer 5, wear resistance, electrical insulation, toughness and cold resistance are improved, and the waterproof layer 7 formed by winding a waterproof insulating tape is arranged on the outer surface of the inner protective layer 6, so that the cable guide core has excellent electrical insulation, high adhesion, waterproof air tightness, high-temperature resistance and chemical corrosion resistance.

In summary, the flexible mineral fireproof water-blocking cable has excellent dragging resistance and elastic recovery performance by arranging the cross 2 to be made of high-temperature-resistant rubber, the flexibility of the flexible mineral cable can be guaranteed, the service life of the flexible mineral cable is prolonged, the PP rope is made of polypropylene by arranging the filling layer 3 to be PP rope, the flexible mineral fireproof water-blocking cable has the characteristics of no water absorption, corrosion resistance, no mildew, friction resistance, long service life and the like, the possibility of wetting the cable guide core 1 is effectively avoided, the water-blocking effect of the flexible mineral cable is greatly improved by the waterproof insulating tape of the waterproof layer 7, and the condition of wetting the flexible mineral cable is avoided.

Moreover, through the stainless steel hose of armor 8, provide resistance to compression, bending and the efficiency of preventing the rat bite for flexible mineral cable, and stainless steel hose can cooperate the use of flexible mineral cable, ensure flexible mineral cable's flexible characteristics, through the Kevlar fibre layer of braid 5 improve flexible mineral cable's intensity, wear-resisting and tear resistance and heat-resisting, fire-retardant and antistatic ability, further improved flexible mineral cable's wearability, the glass fiber of having solved the flame retardant coating in the comparison document its nature is fragile, the wearability is poor, be unfavorable for the cable to come and go in succession the removal, reduced the life of cable, the problem that the user used of not putting.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a flexible mineral fire prevention water blocking cable, includes cable conductor (1), its characterized in that: the cable is led the surface connection of core (1) and is had cross (2), the surface connection of core (1) is led to the cable has filling layer (3), the surface connection of filling layer (3) has parcel layer (4), the surface connection of parcel layer (4) has weaving layer (5), the surface connection of weaving layer (5) has interior sheath (6), the surface connection of interior sheath (6) has waterproof layer (7), the surface connection of waterproof layer (7) has armor (8), the surface connection of armor (8) has fire-retardant layer (9), the surface connection of fire-retardant layer (9) has oversheath (10).

2. A flexible mineral fire-resistant water-blocking cable according to claim 1, wherein: the wrapping layer (4) is silane crosslinked polyethylene, and the filling layer (3) is a PP rope.

3. A flexible mineral fire-resistant water-blocking cable according to claim 1, wherein: the braiding layer (5) is a Kevlar fiber layer, and the inner protecting layer (6) is a high-density polyethylene layer.

4. A flexible mineral fire-resistant water-blocking cable according to claim 1, wherein: the waterproof layer (7) is a waterproof insulating tape, and the armor layer (8) is a stainless steel hose.

5. A flexible mineral fire-resistant water-blocking cable according to claim 1, wherein: isolation buffer sleeves are arranged on the inner side and the outer side of the armor layer (8), the inner wall of each isolation buffer sleeve is attached to the outer surface of the waterproof layer (7), and the outer side of each isolation buffer sleeve is attached to the outer surface of the flame-retardant layer (9).

6. A flexible mineral fire-resistant water-blocking cable according to claim 1, wherein: the flame-retardant layer (9) is a halogen-free crosslinked polyethylene insulating layer, and the outer sheath (10) is a polyvinyl chloride sheath.