CN212847792U - Fireproof flame-retardant safety cable - Google Patents

Abstract

The utility model relates to a fire-retardant type safety cable of preventing fires, it relates to a cable, it includes support core and a plurality of support bar, be connected through the connecting piece between support core and the support bar, adjacent the support bar passes through the retaining member and connects, is equipped with the sinle silk between the adjacent support bar, one side that the support bar kept away from the support core is equipped with the surrounding layer, one side that the supporting bar was kept away from to the surrounding layer is equipped with the flame retardant coating; when preparing the support bar, utilize the connecting piece earlier with the support bar, install the sinle silk between two adjacent support bars again, recycle the retaining member and fix adjacent support bar, fix support bar, support core and sinle silk with the surrounding layer at last, can accomplish the cable, after catching fire, utilize the fire behavior of flame retardant coating, be favorable to improving the fire behavior of cable.

Description

Fireproof flame-retardant safety cable

Technical Field

The application relates to a cable, especially relates to fire prevention fire-retardant type safety cable.

Background

Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life. At present, with the rapid development of social economy in China, important engineering facilities such as subways, tunnels, power plants and nuclear power stations and places with dense personnel such as large supermarkets and exhibition centers are more and more, more requirements are put forward on the safety performance of cables in case of fire, and the cables are required to be capable of still maintaining normal power supply for a period of time in case of flame so as to facilitate escape and rescue.

Chinese patent with an authorization publication number of CN206649920U discloses an easily torn multicore cable, which comprises a main sheath and a coaxial cable, wherein the main sheath is provided with a plurality of uniformly distributed coaxial cables, one side of the inside of the main sheath is provided with a tearing rope, a filling core is arranged in the middle of the inside of the main sheath, and the surface of the coaxial cable is provided with a protective sleeve.

In view of the related art in the above, the inventors consider that there are drawbacks in that: when a fire disaster occurs, the sheath and the protective sleeve of the cable are not strong in fire resistance, and not only can power be cut off, but also the cable can be on fire to aggravate the fire disaster.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of fire resistance of cable, this application provides a fire prevention fire-retardant type safety cable.

The application provides a fire prevention fire-retardant type safety cable adopts following technical scheme:

the utility model provides a fire prevention fire-retardant type safety cable, includes support core and a plurality of support bar, be connected through the connecting piece between support bar and the support core, it is adjacent the support bar passes through the retaining member and connects, and is adjacent be equipped with the sinle silk between the support bar, one side that the support core was kept away from to the support bar is equipped with the surrounding layer, one side that the support bar was kept away from to the surrounding layer is equipped with the flame retardant coating.

Through adopting above-mentioned technical scheme, when preparing the support bar, utilize the connecting piece earlier with the support bar, install the sinle silk between two adjacent support bars again, recycle the retaining member and fix adjacent support bar, fix support bar, support core and sinle silk with the surrounding layer at last, can accomplish the cable, after catching fire, utilize the fire behavior of flame retardant coating, be favorable to improving the fire behavior of cable.

Optionally, the connecting piece is including setting up the dovetail block that is close to support core one side at the support bar, be equipped with the dovetail that supplies the dovetail block to insert on the lateral wall of support core.

Through adopting above-mentioned technical scheme, when the installation, utilize the forked tail piece to insert in the dovetail to this can convenient and fast install the support bar on the sinle silk.

Optionally, the support bar includes the backup pad of being connected with the forked tail piece, one side that the support core was kept away from to the backup pad is equipped with the arc, one side that the backup pad was kept away from to the arc is contradicted with the inside wall of surrounding layer.

Through adopting above-mentioned technical scheme, utilize the backup pad to support the arc board, the arc board supports the overclad layer to this intensity that can increase the cable reduces the cable and takes place cracked possibility.

Optionally, through grooves are formed in two sides of the arc-shaped plate, which are far away from the two sides, the through grooves are arranged along the axial direction of the support core, and mounting grooves are formed in the groove walls of the through grooves;

the retaining member comprises a connecting plate inserted into the through grooves in the two adjacent arc-shaped plates, and hook plates inserted into the mounting grooves are arranged on the connecting plate.

Through adopting above-mentioned technical scheme, utilize the connecting plate to insert two and lead to the groove in, collude the board and insert the mounting groove simultaneously to this can convenient and fast carries out fixed mounting with two adjacent arcs, is favorable to convenient and fast to install the sinle silk between the backup pad.

Optionally, the sinle silk is including setting up the fixed strip between two backup pads, be equipped with the location cavity on the fixed strip, be equipped with the electrically conductive heart yearn of a plurality of in the location cavity.

Through adopting above-mentioned technical scheme, utilize electrically conductive heart yearn to insert the location cavity in, install the fixed strip between two backup pads again to this electrically conductive heart yearn of installation that can convenient and fast.

Optionally, the fixing strip is provided with a transition fillet near the junction between the arc plate and the support plate.

Through adopting above-mentioned technical scheme, utilize the transition fillet, be favorable to reducing the wearing and tearing of fixed strip between to arc board and the backup pad.

Optionally, a heat insulation layer is arranged on the outer side wall of the fixing strip.

Through adopting above-mentioned technical scheme, utilize the insulating layer, be favorable to reducing the possibility that the conducting core line is heated and takes place the burning.

Optionally, the outer cladding layer includes a glass fiber cloth layer, a fire-resistant layer and a shielding layer arranged between the fire-resistant layer and the glass fiber cloth layer, and the fire-resistant layer is arranged on one side close to the fire-resistant layer.

Through adopting above-mentioned technical scheme, utilize the flame retardant coating, improve the fire resistance of cable, be favorable to reducing the possibility that the cable is heated the burning.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the supporting strips are arranged on the supporting cores by the connecting pieces, the cable cores are arranged among the supporting strips, the adjacent supporting strips are locked by the locking pieces, and finally the supporting strips, the cable cores and the supporting cores are wrapped and arranged by the outer cladding layer and the fireproof layer, so that the cable can be completed;

2. the arc-shaped plate is abutted against the inner side wall of the outer cladding layer, so that the strength of the cable is increased;

3. the heat insulation layer is beneficial to reducing the possibility of burning of the conductive core wire in the fixing strip.

Drawings

Fig. 1 is a schematic structural view of a fire-retardant safety cable according to an embodiment of the present application.

Description of reference numerals: 1. a support core; 10. a dovetail groove; 2. a supporting strip; 20. a support plate; 21. an arc-shaped plate; 22. a through groove; 23. mounting grooves; 3. a connecting member; 30. a dovetail block; 4. a locking member; 40. a connecting plate; 41. hooking the plate; 5. a wire core; 50. a fixing strip; 51. positioning the cavity; 52. a conductive core wire; 53. excessive round corners; 54. a thermal insulation layer; 6. an outer cladding; 60. a glass fiber cloth layer; 61. a refractory layer; 62. a shielding layer; 7. and a fire-proof layer.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses fire prevention fire-retardant type safety cable.

Referring to fig. 1, a fire-retardant type safety cable of fire prevention, including the support core 1 that sets gradually from inside to outside, a plurality of sinle silk 5, a plurality of support bar 2 and be used for wrapping up the support core 1, the surrounding layer 6 of sinle silk 5 and support bar 2, sinle silk 5 is located between adjacent support bar 2, support bar 2 is connected with support core 1 through connecting piece 3, connect through retaining member 4 between the adjacent support bar 2, surrounding layer 6 includes the glass fiber cloth layer 60 that sets gradually from one side close to support bar 2 to one side far away from support bar 2, shielding layer 62 and flame retardant coating 61, one side of flame retardant coating 61 far away from shielding layer 62 is equipped with flame retardant coating 7, shielding layer 62 that shielding layer 62 can be woven by copper wire longitude and latitude and forming, flame retardant coating 61 can be ceramic silicon rubber material layer, flame retardant coating 7 can; at first utilize connecting piece 3 to install support bar 2 on supporting core 1, install sinle silk 5 between adjacent support bar 2, recycle retaining member 4 and fix adjacent support bar 2, can fix sinle silk 5 between adjacent support bar 2, wrap glass fiber cloth layer 60 around the package in the support bar 2 outside again, crowd the package in the shielding layer 62 outside with flame retardant coating 61 again, crowd the package in the flame retardant coating 61 outside with flame retardant coating 7 at last, can accomplish the cable.

Referring to fig. 1, in case of fire, the cable is protected by the fireproof layer 7 and the fireproof layer 61, so that the possibility of power failure of the cable due to burning can be reduced.

Referring to fig. 1, the supporting bar 2 comprises a supporting plate 20 connected with the supporting core 1, an arc-shaped plate 21 is arranged on one side of the supporting plate 20 away from the wire core 5, and one side of the arc-shaped plate 21 away from the supporting plate 20 is abutted against one side of the glass fiber cloth layer 60 away from the shielding layer 62; the supporting plate 20 and the arc-shaped plate 21 are used as frameworks of the cables, so that the strength of the cables is improved, and the possibility of breakage of the cables is reduced.

Referring to fig. 1, the joint 3 includes a dovetail block 30 provided on a side of the support plate 20 adjacent to the support core 1, the dovetail block 30 being provided along an axial direction of the support core 1, and a dovetail groove 10 for inserting the dovetail block 30 is provided on an outer side wall of the support core 1.

Referring to fig. 1, the arc plate 21 is provided with through grooves 22 on both sides, one side of the through grooves 22 close to the support bar 2 is provided with a mounting groove 23, and the mounting groove 23 and the through grooves 22 are arranged along the axial direction of the support core 1.

Referring to fig. 1, the locking member 4 includes a connecting plate 40 inserted into the through groove 22 of two adjacent arc plates 21, a hook plate 41 inserted into the mounting groove 23 is provided on the connecting plate 40, and the hook plate 41 and the connecting plate 40 are integrally formed and have a C-shape.

Referring to fig. 1, the wire core 5 includes a fixing strip 50 disposed between two support plates 20, a positioning cavity 51 is disposed on the fixing strip 50, and a plurality of conductive core wires 52 are disposed in the positioning cavity 51; when the installation is carried out, the dovetail block 30 is firstly inserted into the dovetail groove 10, the fixing strip 50 is installed between the adjacent supporting plates 20, the conductive core wire 52 is installed in the positioning cavity 51, and finally the connecting plate 40 and the hook plate 41 are respectively inserted into the through groove 22 and the installation groove 23, so that the wire core 5 can be conveniently and quickly installed on the supporting core 1.

Referring to fig. 1, a thermal insulation layer 54 is disposed on an outer sidewall of the fixing strip 50, and the thermal insulation layer 54 may be an alkali-free glass tape layer; when a fire breaks out, the heat insulation layer 54 is utilized, so that the heat of flame can be reduced to be transmitted into the positioning cavity 51, the possibility that the conductive core wire 52 is heated to burn is reduced, the power supply can be transmitted normally to supply power during the fire, and the escape and rescue are facilitated.

Referring to fig. 1, the fixing bar 50 is provided with a transition fillet 53 near the boundary between the arc plate 21 and the support plate 20; it is advantageous to reduce damage of the sharp edges of the fixing strip 50 to the boundary between the arc plate 21 and the support plate 20.

The implementation principle of fire prevention fire-retardant type safety cable of this application embodiment does: at first utilize connecting piece 3 to be connected support bar 2 and support core 1, install sinle silk 5 between two support bars 2, recycle retaining member 4 and connect adjacent support bar 2, wrap up support bar 2, support core 1 and sinle silk 5 with surrounding layer 6 and flame retardant coating 7 at last, when catching fire, utilize flame retardant coating 7 to protect the cable, be favorable to reducing the possibility that the cable received the burning.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A fire-retardant type safety cable that prevents fires which characterized in that: including supporting core (1) and a plurality of support bar (2), support bar (2) and support are connected through connecting piece (3) between core (1), and are adjacent support bar (2) are connected through retaining member (4), and are adjacent be equipped with sinle silk (5) between support bar (2), one side that support core (1) was kept away from in support bar (2) is equipped with surrounding layer (6), one side that support bar (2) were kept away from in surrounding layer (6) is equipped with flame retardant coating (7).

2. The fire-retardant safety cable according to claim 1, wherein: the connecting piece (3) is including setting up dovetail block (30) that are close to support core (1) one side in support bar (2), be equipped with on the lateral wall of support core (1) and supply dovetail block (30) male dovetail (10).

3. The fire-retardant safety cable according to claim 2, wherein: support bar (2) include backup pad (20) be connected with dovetail block (30), one side that support core (1) was kept away from in backup pad (20) is equipped with arc (21), one side that backup pad (20) were kept away from in arc (21) is contradicted with the inside wall of surrounding layer (6).

4. The fire-retardant safety cable according to claim 3, wherein: through grooves (22) are formed in two opposite sides of the arc-shaped plate (21), the through grooves (22) are arranged along the axial direction of the support core (1), and mounting grooves (23) are formed in the groove walls of the through grooves (22);

retaining member (4) are including inserting connecting plate (40) of leading to groove (22) on two adjacent arc boards (21), be equipped with on connecting plate (40) and insert colluding board (41) of mounting groove (23).

5. The fire-retardant safety cable according to claim 3, wherein: sinle silk (5) are including setting up fixed strip (50) between two backup pads (20), be equipped with location cavity (51) on fixed strip (50), be equipped with a plurality of electrically conductive heart yearn (52) in location cavity (51).

6. The fire-retardant safety cable according to claim 5, wherein: and transition fillets (53) are arranged on the fixing strips (50) and close to the junction between the arc-shaped plate (21) and the support plate (20).

7. The fire-retardant safety cable according to claim 5, wherein: and the outer side wall of the fixing strip (50) is provided with a heat insulation layer (54).

8. The fire-retardant safety cable according to claim 1, wherein: the outer cladding layer (6) comprises a glass fiber cloth layer (60), a fire-resistant layer (61) and a shielding layer (62) arranged between the fire-resistant layer (61) and the glass fiber cloth layer (60), wherein the fire-resistant layer (61) is arranged on one side close to the fire-resistant layer (7).

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