CN210429376U

CN210429376U - Tensile flame-retardant power cable

Info

Publication number: CN210429376U
Application number: CN201921625194.9U
Authority: CN
Inventors: 孔凯
Original assignee: Jiangsu Supervision and Inspection Institute for Product Quality
Current assignee: Jiangsu Supervision and Inspection Institute for Product Quality
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-28
Anticipated expiration: 2029-09-27

Abstract

The utility model provides a tensile fire-retardant type power cable belongs to cable technical field, including cable sheathing, inoxidizing coating and cable core, inoxidizing coating fixed connection is in the inboard of cable sheathing, and the equal fixed connection of cable core is in the inboard one end of inoxidizing coating, and the middle part of cable core all is equipped with the mounting to the one end middle part of mounting all is the cavity form, and one side of mounting all is equipped with the fixed block, and this fixed block all is located the cavity department of mounting, and the upper end of fixed block all is equipped with the dead lever, and the one end of dead lever all is connected with the. This kind of fire-retardant type power cable of tensile stable in structure makes the cable core can make the cable core twitch at the within range of recess under the effect of connecting strip, when surpassing the scope of recess, then the cable core has the tensile effect, makes its unable pulling, makes it can play certain theftproof effect because of the tensile hinders when increasing the bearing force to can make this cable not receive the damage under high temperature environment through the fire prevention cover, make it have unique fire-retardant characteristic.

Description

Tensile flame-retardant power cable

Technical Field

The utility model relates to the technical field of cables, specifically a tensile fire-retardant type power cable.

Background

The power cable is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater, is gradually increased in proportion in the power line, is a cable product used for transmitting and distributing high-power electric energy in a trunk line of a power system, and comprises various insulated power cables with voltage grades of 1-500KV and above.

However, the existing power cable has a single structural design, so that the tensile strength is poor, the tensile strength of objects such as the wire core and the copper core inside the cable is poor, and under the condition of poor tensile strength, the cable does not have good bearing stress, and for external lawless persons, valuable metal wires such as the wire core and the copper core are easily stolen, so that the loss is caused, and the subsequent maintenance cost is increased.

Therefore, upgrading and modification are needed on the basis of the existing tensile flame-retardant power cable to overcome the existing problems and deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing tensile flame-retardant power cable has single structural design, so that the tensile property is poor, the objects with values such as a wire core and a copper core in the cable are poor in tensile property, and the cable does not have good bearing stress under the condition of poor tensile property, and for the lawless persons outside, the valuable metal wires such as the wire core and the copper core are easy to steal, thereby causing loss and increasing the subsequent maintenance cost, and provides the tensile flame-retardant power cable, which has stable structure by arranging a connecting strip, a movable strip, a thickened pipe wall, a fireproof sleeve and a groove, so that the cable core can be drawn in the range of the groove under the action of the connecting strip, when the cable core exceeds the range of the groove, the cable core has the tensile effect, so that the cable core can not be drawn, and the cable can play a certain anti-theft effect due to tensile resistance when the bearing stress is increased, and the cable can be protected from being damaged in a high-temperature environment through the fireproof sleeve, so that the cable has unique flame-retardant property.

In order to achieve the above object, the utility model provides a following technical scheme, a tensile fire-retardant type power cable, including cable jacket, inoxidizing coating and cable core, inoxidizing coating fixed connection is in the inboard of cable jacket, the equal fixed connection of cable core is in the inboard one end of inoxidizing coating, the middle part of cable core all is equipped with the mounting to the one end middle part of mounting all is the cavity form, one side of mounting all is equipped with the fixed block, and this fixed block all is located the cavity department of mounting.

Preferably, the upper end of fixed block all is equipped with decides the pole, and the one end of deciding the pole all is connected with the mounting.

Preferably, one side of the fixed rod is provided with a connecting piece, and the middle part of the connecting piece is provided with a groove.

Preferably, the inner side of the groove is provided with a movable strip, and the movable strip is connected with the groove in a sliding manner.

Preferably, one side of the movable strip is fixedly connected with a connecting strip, the connecting strip is a nylon connecting strip, and one end of the connecting strip is connected with the cable core.

Preferably, the inoxidizing coating includes fire prevention cover and thickening pipe wall, and thickening pipe wall evenly distributed is in the inboard of fire prevention cover.

Has the advantages that:

(1) this kind of fire-retardant type power cable of tensile is because the inboard of recess is equipped with movable strip, make movable strip can remove with the current scope of recess, and because one side fixedly connected with connecting strip of movable strip, and because the one end and the cable core of connecting strip are connected, make the cable core can make the cable core twitch at the within range of recess under the effect of connecting strip, when surpassing the scope of recess, then the cable core has the tensile effect, make its unable pulling, make it can play certain theftproof effect because of the tensile hinders when increasing the bearing capacity.

(2) This kind of fire-retardant type power cable of tensile is because thickening pipe wall evenly distributed is in the inboard of fire prevention cover, can make this cable not receive the damage under high temperature environment through the fire prevention cover, makes it have unique fire-retardant characteristic to can effectually avoid personnel to suffer the burn and scald injury of high heating pipeline, the cost of saving the heat energy loss that more can be by a wide margin.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the fixing block of the present invention.

Fig. 3 is an enlarged schematic view of a structure in fig. 2 according to the present invention.

Fig. 4 is a schematic view of the protective layer structure of the present invention.

In FIGS. 1-4: 1-cable sheathing; 2-a protective layer; 201-fireproof sleeve; 202-thickening the pipe wall; 3-a cable core; 4-a fixing piece; 401-fixed block; 402-fixed rod; 403-a connector; 404-a groove; 405-an activity bar; 406-connecting strips.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Example (b):

with reference to the figures 1-4 of the drawings,

the fire-retardant type power cable of tensile that this embodiment provided, including cable jacket 1, inoxidizing coating 2 and cable core 3, 2 fixed connection of inoxidizing coating are in cable jacket 1's inboard, and the equal fixed connection of cable core 3 is in the inboard one end of inoxidizing coating 2, and the middle part of cable core 3 all is equipped with mounting 4 to the one end middle part of mounting 4 all is the cavity form, and one side of mounting 4 all is equipped with fixed block 401, and this fixed block 401 all is located mounting 4's cavity department.

Further, the upper ends of the fixed blocks 401 are provided with fixed rods 402, and one ends of the fixed rods 402 are connected with the fixed pieces 4;

in this embodiment, the fixing rod 402 can fix the connecting member 403 to keep the connecting member 403 balanced and stable.

Further, one side of the fixed rod 402 is provided with a connecting piece 403, and the middle part of the connecting piece 403 is provided with a groove 404;

in this embodiment, the groove 404 provides a limited area for the movable strip 405 to move, which provides flexibility while resisting pull-out.

Further, a movable strip 405 is arranged on the inner side of the groove 404, and the movable strip 405 is connected with the groove 404 in a sliding manner;

in this embodiment, the cable core 3 can be drawn within the range of the groove 404 under the action of the connecting strip 406, and when the cable core 3 exceeds the range of the groove 404, the cable core 3 has a tensile effect, so that the cable core cannot be pulled, and the cable core 3 can play a certain anti-theft role due to tensile resistance while increasing the bearing stress.

Further, a connecting strip 406 is fixedly connected to one side of the movable strip 405, the connecting strip 406 is a nylon connecting strip 406, and one end of the connecting strip 406 is connected to the cable core 3;

in this embodiment, a certain traction effect can be applied to the cable core 3 through the connecting strip 406 to prevent the cable core from being completely pulled out, and the tensile resistance function is further improved.

Further, the protective layer 2 comprises a fireproof sleeve 201 and a thickened pipe wall 202, and the thickened pipe wall 202 is uniformly distributed on the inner side of the fireproof sleeve 201;

in the embodiment, the cable can be prevented from being damaged in a high-temperature environment, has unique flame-retardant property, can effectively prevent personnel from being burnt and damaged by a high-heat pipeline, and can greatly save the cost of heat energy loss.

The working principle is as follows:

when the tensile flame-retardant power cable provided by the embodiment is used, the tightness of the connection among the components of the cable is checked, when the cable core 3 of the cable is pulled, the movable strip 405 can move within the existing range of the groove 404, so that the cable core 3 can be pulled within the range of the groove 404 under the action of the connecting strip 406, when the cable core 3 exceeds the range of the groove 404, the cable core 3 has the tensile effect, so that the cable core cannot be pulled, the bearing stress is increased, meanwhile, a certain anti-theft effect can be achieved due to the tensile resistance, and the fireproof sleeve 201 is made of a high-bulkiness glass fiber sleeve and is covered by thick iron oxide red silica gel, so that the cable can not be damaged in a high-temperature environment through the fireproof sleeve 201, has the unique flame-retardant characteristic, and can effectively prevent personnel from being burnt and injured by high-temperature pipelines, the cost of heat energy loss can be greatly saved.

Claims

1. The utility model provides a fire-retardant type power cable of tensile, includes cable jacket (1), inoxidizing coating (2) and cable core (3), its characterized in that, inoxidizing coating (2) fixed connection is in the inboard of cable jacket (1), the equal fixed connection of cable core (3) is in the inboard one end of inoxidizing coating (2), the middle part of cable core (3) all is equipped with mounting (4) to the one end middle part of mounting (4) all is the cavity form, one side of mounting (4) all is equipped with fixed block (401), and this fixed block (401) all is located the cavity department of mounting (4).

2. The tensile flame-retardant power cable according to claim 1, wherein the fixed blocks (401) are provided at upper ends thereof with fixed rods (402), and one ends of the fixed rods (402) are connected with the fixed member (4).

3. The tensile flame-retardant power cable according to claim 2, wherein a connecting piece (403) is arranged on one side of the fixed rod (402), and a groove (404) is formed in the middle of the connecting piece (403).

4. The tensile and flame retardant type power cable according to claim 3, wherein the groove (404) is provided with a movable strip (405) on the inner side, and the movable strip (405) is slidably connected with the groove (404).

5. The tensile and flame retardant type power cable according to claim 4, wherein a connecting strip (406) is fixedly connected to one side of the movable strip (405), the connecting strip (406) is a nylon connecting strip (406), and one end of the connecting strip (406) is connected to the cable core (3).

6. The tensile and flame retardant power cable according to claim 1, wherein the protective layer (2) comprises a fireproof sleeve (201) and a thickened pipe wall (202), and the thickened pipe wall (202) is uniformly distributed on the inner side of the fireproof sleeve (201).