CN219534090U - Flame-retardant cable with bending-resistant structure - Google Patents

Abstract

The utility model discloses a flame-retardant cable with a bending-resistant structure, which comprises an outer sheath, wherein an armoring layer is fixedly connected to the inner side of the outer sheath, a waterproof lime layer is fixedly connected to the inner side of the armoring layer, a flame-retardant layer is fixedly connected to the inner side of the waterproof lime layer, a filling layer is fixedly connected to the inner side of the flame-retardant layer, a restoring spring is fixedly connected to the outer side of the filling layer, an insulating sleeve is fixedly connected to the inner side of the filling layer, a wire core is fixedly connected to the inner side of the insulating sleeve, and the bending-resistant sleeve, a bending-resistant groove and the restoring spring are arranged.

Description

Flame-retardant cable with bending-resistant structure

Technical Field

The utility model relates to the technical field of cables, in particular to a flame-retardant cable with a bending-resistant structure.

Background

The patent document with the prior art publication number of CN216980167U provides a bending-resistant fireproof flame-retardant cable, which comprises copper conductors, wherein three copper conductors are arranged, the three copper conductors are distributed in an annular array, an inner shielding layer is arranged on the outer surface of each copper conductor, an insulating layer is arranged on the outer surface of each inner shielding layer, bending-resistant layers are arranged on the outer surfaces of the insulating layers, and an inner flame-retardant sheath is arranged on the outer surfaces of the bending-resistant layers. According to the bending-resistant fireproof flame-retardant cable, the bending-resistant layer is arranged to improve the bending-resistant capability of the cable, so that the cable is suitable for various laying or transportation scenes, the automatic restoration function of the cable is realized through the arrangement of the elastic belt, the probability of deformation of a copper conductor is reduced, the fireproof flame-retardant structure is formed by the arrangement of the outer flame-retardant sheath, the inner flame-retardant sheath and the low-smoke halogen-free flame-retardant belt together, the fireproof performance of the cable is ensured, and the mutual interference of the copper conductor and the interference of the external environment are reduced through the arrangement of the inner shielding layer and the outer shielding layer.

Although the fire-resistant flame-retardant cable of nai bending reduces the mutual interference of copper conductor and external environment's interference through setting up interior shielding layer and outer shielding layer, but have fire-retardant cable of nai bending structure in the installation, the cable needs to buckle because of the reason of laying the route, because of the outer sheath of cable itself extends relatively poor and the outward appearance is comparatively smooth and flat, the phenomenon of crease and fracture can appear because of there is not article to wrap up in the bending process, simultaneously the cable can appear unable problem of recovering because of being buckled, buckle the position, so we propose a fire-retardant cable with nai bending structure.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a flame-retardant cable with a bending-resistant structure, so as to solve the problems that in the prior art, the outer sheath of the cable is poor in extension and smooth and flat in appearance, folds and cracks can occur due to no wrapping of articles in the bending process, and meanwhile, the cable is bent, so that the bending part can not be restored.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a fire-retardant cable with resistant structure of buckling, includes the oversheath, the inboard fixedly connected with dress on oversheath is first, the inboard fixedly connected with waterproof lime layer on dress first, the inboard fixedly connected with fire-retardant layer on waterproof lime layer, the inboard fixedly connected with filling layer on fire-retardant layer, the outside fixedly connected with of filling layer restores the spring, the inboard fixedly connected with insulating cover of filling layer, the inboard fixedly connected with sinle silk of insulating cover.

Further preferably, the outer side of the outer sheath is fixedly connected with a bending-resistant sleeve, and a bending-resistant groove is formed in the outer surface of the bending-resistant sleeve.

Further preferably, the plurality of bending-resistant grooves are arranged on the outer surface of the bending-resistant sleeve at equal intervals.

Further preferably, the number of the restoring springs is four, the sizes of the four restoring springs are the same, and the four restoring springs are respectively located between the filling layer and the flame-retardant layer.

Further preferably, the wire core is provided with a plurality of wire cores, and the lengths of the plurality of wire cores are the same.

Further preferably, the bending-resistant sleeve is made of a silica gel material, and the bending-resistant sleeve is cylindrical.

(III) beneficial effects

The utility model provides a flame-retardant cable with a bending-resistant structure, which has the following beneficial effects:

(1) This kind of fire-retardant cable with resistant structure of buckling, through the resistant cover that buckles that sets up, resistant bending groove and recovery spring, when laying the cable in-process need buckle, because the oversheath of cable is provided with resistant cover of buckling, and resistant cover of buckling is processed by the silica gel material and is formed, utilize silica gel to have higher extension effect, when the cable buckles, resistant cover of buckling will play the effect of protecting the oversheath, resistant bending groove has been seted up to the outward appearance of resistant cover of buckling simultaneously, and because of the cable buckle, the cable of butt joint position can compress the fifty percent discount, and resistant bending groove makes the cable have sufficient space dock, avoid the cable to extrude each other, simultaneously the crooked one side of cable butt joint position will be stretched out, and resistant bending groove will be straightened, simultaneously after being straightened, because of recovery spring has elastic deformation's characteristic, make the cable can directly recover through fire-retardant layer, so extension and elasticity of cable have been improved, make the cable can not appear the crease and fracture phenomenon after buckling, and make the cable can directly recover after bending, therefore, the resistance to bend of cable has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an overall cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a partial structure of the buckle resistant sleeve of the present utility model.

In the figure: 1. a bending-resistant sleeve; 2. bending-resistant grooves; 3. an outer sheath; 4. a Kai layer; 5. a waterproof lime layer; 6. a flame retardant layer; 7. a filling layer; 8. a restoring spring; 9. an insulating sleeve; 10. a wire core.

Description of the embodiments

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a fire-retardant cable with resistant structure of buckling, includes oversheath 3, the inboard fixedly connected with dress of oversheath 3 is first 4, the inboard fixedly connected with waterproof lime layer 5 of dress first 4, the inboard fixedly connected with fire-retardant layer 6 of waterproof lime layer 5, the inboard fixedly connected with filling layer 7 of fire-retardant layer 6, the outside fixedly connected with of filling layer 7 restores spring 8, the inboard fixedly connected with insulating cover 9 of filling layer 7, the inboard fixedly connected with sinle silk 10 of insulating cover 9.

In this embodiment, specifically, the outside fixedly connected with of oversheath 3 is able to bear or endure cover 1 of buckling, and resistant bending groove 2 has been seted up to resistant outer surface of cover 1 of buckling, because of cable bending time, the cable of butt joint position can compress the fifty percent discount, and resistant bending groove 2 makes the cable have sufficient space to dock, avoids the cable to extrude each other, will be stretched out when the crooked one side of cable butt joint position, and resistant bending groove 2 will be straightened, avoids the cable to appear the fracture.

In this embodiment, specifically, the bending-resistant groove 2 is provided with a plurality of, and a plurality of bending-resistant grooves 2 are the equidistance respectively and arrange in the surface of resistant cover 1 of buckling, because of the cable bending time, the cable of butt joint position can compress the fifty percent discount, and resistant bending-resistant groove 2 makes the cable have sufficient space to dock, avoids the cable to extrude each other.

In this embodiment, specifically, four restoring springs 8 are provided, the sizes of the four restoring springs 8 are the same, and the four restoring springs 8 are respectively located between the filling layer 7 and the flame-retardant layer 6, so that the cable can be restored directly due to the elastic deformation of the restoring springs 8.

In this embodiment, specifically, the wire cores 10 are provided with a plurality of wire cores 10, and the lengths of the plurality of wire cores 10 are the same, so that the cable can be better electrified.

In this embodiment, specifically, the bending-resistant sleeve 1 is made of a silica gel material, the bending-resistant sleeve 1 is in a "cylindrical shape", and has a higher extending effect by using silica gel, and when the cable is bent, the bending-resistant sleeve 1 plays a role in protecting the outer sheath 3.

Working principle: after the cable is installed, the installation and fixation and safety protection of the cable are checked firstly, when the cable is required to be bent in the process of laying, the bending-resistant sleeve 1 is arranged on the outer sheath 3 of the cable, the bending-resistant sleeve 1 is processed by a silica gel material, the cable can be directly restored by using the silica gel to have higher extension effect, when the cable is bent, the bending-resistant sleeve 1 can play a role of protecting the outer sheath 3, meanwhile, the bending-resistant groove 2 is formed on the outer surface of the bending-resistant sleeve 1, when the cable is bent, the cable at the butt joint part can be compressed and folded, the bending-resistant groove 2 enables the cable to have enough space for butt joint, the mutual extrusion of the cable is avoided, meanwhile, the bent surface of the butt joint part of the cable can be stretched, the bending-resistant groove 2 can be straightened, meanwhile, after the cable is straightened, the cable can directly restore due to the elastic deformation characteristic of the restoring spring 8, and the cable can play a flame-retardant effect through the flame-retardant layer 6, so that the use process of the cable is completed.

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 (6)

1. The utility model provides a fire-retardant cable with resistant structure of buckling, includes oversheath (3), its characterized in that: the waterproof lime layer is characterized in that the inner side of the outer sheath (3) is fixedly connected with a binding layer (4), the inner side of the binding layer (4) is fixedly connected with a waterproof lime layer (5), the inner side of the waterproof lime layer (5) is fixedly connected with a flame-retardant layer (6), the inner side of the flame-retardant layer (6) is fixedly connected with a filling layer (7), the outer side of the filling layer (7) is fixedly connected with a restoring spring (8), the inner side of the filling layer (7) is fixedly connected with an insulating sleeve (9), and the inner side of the insulating sleeve (9) is fixedly connected with a wire core (10).

2. A flame retardant cable having a bend resistant structure as recited in claim 1, wherein: the outer side of the outer sheath (3) is fixedly connected with a bending-resistant sleeve (1), and a bending-resistant groove (2) is formed in the outer surface of the bending-resistant sleeve (1).

3. A flame retardant cable having a bend resistant structure as recited in claim 2, wherein: the bending-resistant grooves (2) are formed in a plurality, and the bending-resistant grooves (2) are respectively arranged on the outer surface of the bending-resistant sleeve (1) at equal intervals.

4. A flame retardant cable having a bend resistant structure as recited in claim 1, wherein: the four restoring springs (8) are arranged, the sizes of the four restoring springs (8) are the same, and the four restoring springs (8) are respectively arranged between the filling layer (7) and the flame-retardant layer (6).

5. A flame retardant cable having a bend resistant structure as recited in claim 1, wherein: the wire cores (10) are provided with a plurality of wire cores, and the lengths of the plurality of wire cores (10) are the same.

6. A flame retardant cable having a bend resistant structure as recited in claim 2, wherein: the bending-resistant sleeve (1) is formed by processing a silica gel material, and the bending-resistant sleeve (1) is cylindrical.