CN216450439U

CN216450439U - Flame-retardant cable with strong structural stability

Info

Publication number: CN216450439U
Application number: CN202123300104.9U
Authority: CN
Inventors: 镡跃成; 尹士诚; 姜连青
Original assignee: Beijing Chaoyang Longhua Wire And Cable Co ltd
Current assignee: Beijing Chaoyang Longhua Wire And Cable Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-06
Anticipated expiration: 2031-12-24

Abstract

The application discloses fire-retardant type cable that structural stability is strong belongs to cable technical field, including the inner core, the outside packing of interior lag has thermal-insulated stopping, the inboard fixedly connected with arc of division board, one side fixed mounting that the division board was kept away from to the arc has first elasticity arch, one side that the arc was kept away from to first elasticity arch is laminated with the outside of interior lag, the outside fixed mounting of division board has the insulating layer, the inboard and the fixed mounting of insulating layer have second elasticity arch. This fire-retardant type cable that structural stability is strong through division board and arc, and the position of inner protective cover is spacing, and first elasticity is protruding to be used with the bellied cooperation of second elasticity, and the outside pressure of inner protective cover cushions, and thermal-insulated stopping reduces thermal conduction, protects the outside of inner protective cover for the inner core can normal use, thereby has reached the effect that improves cable safety in utilization through above-mentioned structure.

Description

Flame-retardant cable with strong structural stability

Technical Field

This application belongs to cable technical field, especially relates to a fire-retardant type cable that structural stability is strong.

Background

A cable is an electrical energy or signal transmission device, generally consisting of several or several groups of conducting wires, which are insulated from each other and often twisted around a center, and which is entirely covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: in the transmission of some cables for transmitting electric energy, the cables are mainly made of rubber materials, the heat resistance is poor, and the cable can be burnt at an overhigh temperature under the condition that the external temperature of the cables is overhigh, so that the safety of the cables is greatly reduced.

Therefore, a flame-retardant cable with strong structural stability is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The application aims at solving the problem that in the prior art, the cable can burn due to the fact that the temperature of the cable is too high in transmission of electric energy transmitted by the cable, so that the safety of the cable is greatly reduced, and the flame-retardant cable with strong structural stability is provided.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a fire-retardant type cable that structural stability is strong, includes the inner core, the outside parcel of inner core is provided with interior lag, the outside packing of interior lag has thermal-insulated stopping, the outside of thermal-insulated stopping is provided with the division board, the inboard fixedly connected with arc of division board, one side fixed mounting that the division board was kept away from to the arc has first elasticity arch, one side that the arc was kept away from to first elasticity arch and the outside laminating of interior lag, the outside fixed mounting of division board has the insulating layer, the inboard fixed mounting of insulating layer has second elasticity arch, the protruding one side of keeping away from the insulating layer of second elasticity is kept away from the laminating of one side of first elasticity arch with interior lag.

By arranging the heat insulation filler, the first elastic bulges, the insulating layer and the second elastic bulges, the protection and the buffering of the inner core of the cable are realized, and the use safety of the cable is improved.

Preferably, the outer fixed surface of insulating layer installs the support column, the fixed mounting of the inside of support column has the spring, the support column is kept away from one side butt of insulating layer and is had a limit baffle, the spring is kept away from the one end of support column and limit baffle's inboard butt.

Through setting up support column, spring and limit baffle, realized that the position of the insulating layer of being convenient for carries on spacingly.

Preferably, the partition plate, the insulating layer and the limiting baffle are coaxial.

Through setting up division board, insulating layer and limit baffle, realized the accurate nature of inner core installation.

Preferably, a flame-retardant layer is filled between the outer side of the insulating layer and the inner side of the limiting baffle, and the outer side of the supporting column penetrates through the inner part of the flame-retardant layer and is fixedly connected with the outer side of the insulating layer.

Through setting up fire-retardant layer, realized further increasing cable safeguard function's effect.

Preferably, a wrapping sleeve is arranged inside the heat insulation filler, and a galvanized steel wire is wrapped on the inner side of the wrapping sleeve.

Through setting up wrapping up cover and galvanized steel wire, realized shielding low frequency interference's effect.

Preferably, the outer side of the limit baffle is wrapped and filled with inorganic filler, an outer protective sleeve is arranged on the outer side of the inorganic filler, and the inorganic filler is filled between the outer side of the limit baffle and the inner side of the outer protective sleeve.

By arranging the inorganic filler and the outer protective sleeve, the effect of increasing the external protection of the cable is realized.

Preferably, a strip-shaped pad is fixedly installed on the outer side of the outer protection sleeve.

Through setting up the bar pad, realized increasing the friction that outer lag removed.

To sum up, the technical effect and the advantage of this application: this fire-retardant type cable that structural stability is strong through division board and arc, and the position of internal protection cover carries on spacingly, and first elastic bulge and the bellied cooperation of second elastic bulge are used, and the outside pressure of internal protection cover cushions, and thermal-insulated stopping reduces thermal conduction, protects the outside of internal protection cover for the inner core can normal use, thereby has reached the effect that improves cable safety in utilization through above-mentioned structure.

The interior material through outer lag cable protects, avoids the interior material damage of cable as far as possible, and the gliding friction of outer lag is increased to the rethread bar pad, reduces the friction of outer lag and contact surface, thereby has reached the life who increases the cable through above-mentioned structure.

Drawings

FIG. 1 is a schematic plan view of the present application;

FIG. 2 is a schematic perspective view of the present application;

fig. 3 is a schematic view of the structure of the support column of the present application.

In the figure: 1. an inner core; 2. an inner protective sleeve; 3. heat insulation filler; 4. a partition plate; 5. an arc-shaped plate; 6. a first elastic protrusion; 7. an insulating layer; 8. a second elastic protrusion; 9. a support pillar; 10. a spring; 11. a limit baffle; 12. a flame retardant layer; 13. wrapping the sleeve; 14. galvanized steel wire; 15. an inorganic filler; 16. an outer protective sleeve; 17. a strip pad.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1-2, a fire-retardant type cable that structural stability is strong, including inner core 1, the outside parcel of inner core 1 is provided with interior lag 2, the outside packing of interior lag 2 has thermal-insulated stopping 3, thermal-insulated stopping 3 mainly comprises glass fiber, increase the thermal-insulated effect of the inside operation of inner core 1, the outside of thermal-insulated stopping 3 is provided with division board 4, the longitudinal section of division board 4 is the cross, the inboard fixedly connected with arc 5 of division board 4, arc 5 is provided with four, four arcs 5 are located the inboard evenly distributed of division board 4.

One side fixed mounting that division board 4 was kept away from to arc 5 has first elastic bulge 6, first elastic bulge 6 mainly comprises the rubber material, certain elasticity has, the one side that arc 5 was kept away from to first elastic bulge 6 is laminated with the outside of interior lag 2, the outside fixed mounting of division board 4 has insulating layer 7, insulating layer 7 reduces the outside electric conductivity of cable, the inboard fixed mounting of insulating layer 7 has second elastic bulge 8, the material of second elastic bulge 8 is the same with first elastic bulge 6, one side that insulating layer 7 was kept away from to second elastic bulge 8 is laminated with one side that interior lag 2 kept away from first elastic bulge 6, first elastic bulge 6 and the protruding 8 outside of interior lag 2 of second elastic bulge protect the buffering, thermal-insulated stopping 3 and insulating layer 7 increase the inside thermal-insulated insulating effect of cable, thereby improve the security of cable.

Referring to fig. 1 and 3, outer fixed surface of insulating layer 7 installs support column 9, support column 9 is provided with a plurality of, every twelve support columns 9 are a set of, every group support column 9 is located the outside of insulating layer 7 and is circumference array distribution, the fixed mounting of the inside of support column 9 has spring 10, one side butt that insulating layer 7 was kept away from to support column 9 has limit baffle 11, spring 10 keeps away from the inboard butt of one end and limit baffle 11 of support column 9, limit baffle 11 further blocks the outside pressure that receives, support column 9 is connected insulating layer 7 and limit baffle 11, the packing of the material of being convenient for.

Referring to fig. 1, the partition plate 4, the insulating layer 7 and the limiting baffle 11 are coaxial, and the central point of the partition plate 4, the central point of the insulating layer 7 and the central point of the limiting baffle 11 are on the same axis, so that the inner core 1 is limited conveniently.

Referring to fig. 1, a flame-retardant layer 12 is filled between the outer side of the insulating layer 7 and the inner side of the limiting baffle 11, the flame-retardant layer 12 is mainly formed by combining materials such as hydrated zinc borate, the outer side of the supporting column 9 penetrates through the inner part of the flame-retardant layer 12 and is fixedly connected with the outer side of the insulating layer 7, and when the flame-retardant layer 12 is heated, the oxygen concentration of a combustion area can be diluted, the combustion is prevented from continuing, and the flame-retardant effect of the cable is improved.

Referring to fig. 1, the heat insulation filler 3 is internally provided with eight wrapping sleeves 13, each two wrapping sleeves 13 form a group, the heat insulation filler 3 is wrapped outside each group of wrapping sleeves 13, the galvanized steel wires 14 are wrapped inside the wrapping sleeves 13, and the galvanized steel wires 14 increase the low-frequency interference effect of the electric wire and the electric cable.

Referring to fig. 1, an inorganic filler 15 is wrapped and filled outside a limit baffle 11, the inorganic filler 15 is formed by mixing materials such as calcium carbonate, particles are in a round stone shape and have flame retardancy, an outer protective sleeve 16 is arranged outside the inorganic filler 15, the diameter of the outer protective sleeve 16 is larger than that of the limit baffle 11, the inorganic filler 15 is filled between the outside of the limit baffle 11 and the inside of the outer protective sleeve 16, and the inorganic filler 15 is located between the limit baffle 11 and the outer protective sleeve 16, so that the flame retardancy outside the cable is improved.

Referring to fig. 1-2, the outer side fixed mounting of outer lag 16 has bar pad 17, and bar pad 17 is provided with a plurality of, and a plurality of bar pad 17 is located the outside of outer lag 16 and is the circumference array distribution, and when outer lag 16 atress removed, bar pad 17 increased the friction of outer lag 16 and contact surface.

The working principle is as follows: interior lag 2 wraps up the outside of inner core 1, division board 4 separates interior lag 2, second elastic bulge 8 and first elastic bulge 6 extrude spacingly to interior lag 2's both sides, the outside extrusion back of outer lag 16, limit baffle 11 and support column 9 support pressure, second elastic bulge 8 and first elastic bulge 6 carry out the part buffering to pressure, parcel cover 13 wraps up behind galvanized steel wire 14's outside, 14 evenly distributed with galvanized steel wire, fill thermal-insulated stopping 3 to the inboard space department of insulating layer 7 afterwards, thermal-insulated stopping 3 mainly comprises glass fiber, isolated partial thermal conduction, fire-retardant layer 12 avoids interior lag 2 to be heated high burning as far as possible, thereby the unable normal use of inner core 1, thereby the effect that improves cable safety in utilization has been reached through above-mentioned structure.

When the cable burns, the inorganic filler 15 reduces the flow of harmful gas, one end of the cable is pulled, the outer protective sleeve 16 is rubbed, and the damaged part of the inorganic filler 15 is avoided as much as possible, so that the external usability of the cable is reduced, in the moving process of the outer protective sleeve 16, the strip-shaped pad 17 increases the friction between the outer protective sleeve 16 and a contact surface, the external abrasion of the outer protective sleeve 16 is avoided as much as possible, and the service life of the cable is prolonged through the structure.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions or changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. The utility model provides a fire-retardant type cable that structural stability is strong, a serial communication port, including inner core (1), the outside parcel of inner core (1) is provided with interior lag (2), the outside of interior lag (2) is filled with thermal-insulated stopping (3), the outside of thermal-insulated stopping (3) is provided with division board (4), inboard fixedly connected with arc (5) of division board (4), one side fixed mounting that division board (4) were kept away from in arc (5) has first elasticity arch (6), one side that arc (5) were kept away from in first elasticity arch (6) is laminated with the outside of interior lag (2), the outside fixed mounting of division board (4) has insulating layer (7), the inboard fixed mounting of insulating layer (7) has the protruding (8) of second elasticity, one side that insulating layer (7) were kept away from in the protruding (8) of second elasticity and one side laminating that interior lag (2) kept away from first elasticity arch (6) are laminated to one side of second elasticity arch (8) .

2. The flame-retardant cable with high structural stability according to claim 1, wherein a supporting column (9) is fixedly mounted on the outer surface of the insulating layer (7), a spring (10) is fixedly mounted inside the supporting column (9), a limiting baffle (11) is abutted to one side, away from the insulating layer (7), of the supporting column (9), and one end, away from the supporting column (9), of the spring (10) is abutted to the inner side of the limiting baffle (11).

3. The flame retardant cable with strong structural stability according to claim 2, wherein the separation plate (4), the insulating layer (7) and the limit baffle (11) are coaxial.

4. The flame-retardant cable with strong structural stability according to claim 2, wherein a flame-retardant layer (12) is filled between the outer side of the insulating layer (7) and the inner side of the limit baffle (11), and the outer side of the supporting column (9) penetrates through the inner part of the flame-retardant layer (12) and is fixedly connected with the outer side of the insulating layer (7).

5. The flame retardant cable with strong structural stability according to claim 1, wherein a wrapping sleeve (13) is arranged inside the heat insulation filler (3), and a galvanized steel wire (14) is wrapped inside the wrapping sleeve (13).

6. The flame retardant cable with strong structural stability according to claim 2, wherein an inorganic filler (15) is wrapped and filled outside the limit baffle (11), an outer protective sleeve (16) is arranged outside the inorganic filler (15), and the inorganic filler (15) is filled between the outside of the limit baffle (11) and the inside of the outer protective sleeve (16).

7. The flame retardant cable with strong structural stability according to claim 6, wherein a strip-shaped pad (17) is fixedly arranged on the outer side of the outer protective sleeve (16).