CN218826333U

CN218826333U - Fireproof cable structure

Info

Publication number: CN218826333U
Application number: CN202223218637.7U
Authority: CN
Inventors: 胡延良
Original assignee: Dongguan Wenchang Electronic Products Co ltd
Current assignee: Dongguan Wenchang Electronic Products Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-07
Anticipated expiration: 2032-12-01

Abstract

The application discloses fireproof cable structure, set up in the intraformational wire of insulating layer including insulating layer and a plurality of roots, the insulating layer with be provided with the filling layer between the wire, the insulating layer deviates from one side of filling layer is provided with the shielding layer, the shielding layer deviates from one side of insulating layer is provided with the buffer layer, the cushion chamber has been seted up in the buffer layer, be provided with a plurality of buffering adhesive tape in the cushion chamber, the buffer layer deviates from one side of shielding layer is provided with the flame retardant coating, the flame retardant coating deviates from one side of buffer layer is provided with the inoxidizing coating. This application has and reduces effectively that the staff tramples easily to fireproof cable when the installation fireproof cable on, easily leads to fireproof cable bending deformation to make its inner structure damage to the effect of the condition of influence fireproof cable's use.

Description

Fireproof cable structure

Technical Field

The application relates to the technical field of cables, in particular to a fireproof cable structure.

Background

Cables are typically made up of several wires or groups of wires. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

In the related art, in order to enable the cable to be capable of keeping effective power supply for a long time when a fire disaster occurs, people can escape and rescue conveniently, and therefore flame-retardant materials are added into the cable to manufacture a fireproof cable. However, current fireproof cable structure is comparatively simple, and when installation fireproof cable, the staff places fireproof cable and pulls to required position behind the ground to when the installation staff tramples to fireproof cable on easily, easily lead to fireproof cable bending deformation to make its inner structure damage, thereby influence fireproof cable's use.

SUMMERY OF THE UTILITY MODEL

In order to improve relevant when installation fireproof cable, the staff tramples and leads to fireproof cable bending deformation to fireproof cable for fireproof cable's inner structure damages, thereby influences fireproof cable's drawback of use, and this application provides a fireproof cable structure.

The application provides a fireproof cable structure adopts following technical scheme:

the utility model provides a fireproof cable structure, includes that insulating layer and a plurality of root set up in the intraformational wire of insulating layer, the insulating layer with be provided with the filling layer between the wire, the insulating layer deviates from one side of filling layer is provided with the shielding layer, the shielding layer deviates from one side of insulating layer is provided with the buffer layer, seted up the cushion chamber in the buffer layer, be provided with a plurality of buffering adhesive tape in the cushion chamber, the buffer layer deviates from one side of shielding layer is provided with the flame retardant coating, the flame retardant coating deviates from one side of buffer layer is provided with the inoxidizing coating.

Through adopting above-mentioned technical scheme, when using fireproof cable, through the setting of filling layer and flame retardant coating for fireproof cable's fire behavior obtains improving, through the setting of wearing layer, protects fireproof cable effectively, improves fireproof cable's wear resistance. And through the arrangement of the shielding layer, the influence of strong magnetic field and strong current on the normal transmission work of the cable after the current in the lead is subjected to electrostatic induction with external substances is reduced. Through setting up the buffer layer, when fireproof cable received exogenic action bending deformation, the buffering adhesive tape of buffer cavity cushions to external force to the resistance to compression anti-deformation ability of fireproof cable has been improved, reduces effectively when installation fireproof cable, and the staff tramples to fireproof cable on to lead to fireproof cable bending deformation, thereby makes its inner structure damage influence fireproof cable's the condition of use.

Preferably, a deformation groove is formed in the buffering rubber strip, and the deformation groove is formed along the length direction of the buffering rubber strip.

Through adopting above-mentioned technical scheme, when fireproof cable received exogenic action bending deformation, the buffering adhesive tape of buffering intracavity was to the exogenic buffering to the deformation that buffering adhesive tape produced external force through self in the deformation groove cushions once more, has improved fireproof cable's resistance to compression anti-deformation ability effectively.

Preferably, the wire includes a plurality of cable cores and sets up the cable core cover outside a plurality of cable cores, the cable core cover is made by high temperature resistant material.

Through adopting above-mentioned technical scheme to the setting of cooperation flame retardant coating, thereby further improved fireproof cable's high temperature resistant performance.

Preferably, be provided with fixed pipe in the insulating layer, fixed extratubal installation has a plurality of sand grips, the sand grip deviates from one side of fixed pipe is provided with a plurality of groups and is used for making wire and fixed pipe relatively fixed to reduce the fixed subassembly of the condition that a plurality of wires shifted when the preparation cable.

Through adopting above-mentioned technical scheme, when making fireproof cable, through adjusting fixed subassembly, and when setting up the filling layer in the insulating layer to make the difficult relative insulating layer of wire shift.

Preferably, fixed subassembly includes that two are used for colluding hold fixed two adjacent the centre gripping piece of wire, the one end of centre gripping piece connect in the sand grip, the centre gripping piece is kept away from the one end of sand grip stretches into adjacent two between the wire, two one side that the centre gripping piece deviates from each other is respectively the butt in adjacent two outside the cable core cover.

Through adopting above-mentioned technical scheme, when making fireproof cable, the one end that the sand grip was kept away from to the supporting piece stretches into between two adjacent wires for the supporting piece colludes and holds fixed wire, thereby reduces the relative insulating layer condition of shifting of wire.

Preferably, the two opposite inner walls of the deformation groove are provided with notch grooves, and the two notch grooves are oppositely arranged.

Through adopting above-mentioned technical scheme for make the deformation groove take place to deform after the buffering adhesive tape receives the exogenic action, and two relative cell walls in deformation groove take place to deform towards the direction of keeping away from each other, thereby cushion the exogenic action.

Preferably, a plurality of grooves are formed in one side, deviating from the fixed pipe, of each raised line, and the grooves in the raised lines are arranged in a staggered mode.

Through adopting above-mentioned technical scheme to fireproof cable's bending property has been improved.

Preferably, the clamping piece is inclined from one end close to the convex strip to one end far away from the convex strip.

Through adopting above-mentioned technical scheme for the one end that the sand grip was kept away from to the centre gripping piece stretches into between two wires, thereby makes one side that two centre gripping pieces deviate from each other butt respectively in the outside of two cable core covers, in order to reduce the condition that the relative insulating layer of wire shifted.

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

1. by arranging the buffer layer and arranging the buffer rubber strip in the buffer layer, the compression resistance and deformation resistance of the fireproof cable are improved, and the situation that when the fireproof cable is installed, the fireproof cable is bent and deformed due to the fact that a worker tramples on the fireproof cable, so that the internal structure of the fireproof cable is damaged to influence the use of the fireproof cable is effectively reduced;

2. through set up the sand grip on fixed pipe to set up the holding piece on the sand grip, make the holding piece collude hold and be fixed in the wire, thereby reduce the relative insulating layer condition of shifting of wire.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for showing a relationship between a fixing component and a wire in the embodiment of the present application.

Fig. 3 is a schematic view of the structure of fig. 2 with one wire removed.

Description of reference numerals:

10. an insulating layer; 11. a wire; 111. a cable core; 112. a cable core sleeve; 12. a filling layer; 13. a shielding layer; 14. a buffer layer; 15. a fire-resistant layer; 16. a protective layer; 20. a fixed tube; 21. a convex strip; 22. a groove; 23. a clamping piece; 30. a buffer chamber; 31. a buffering rubber strip; 32. a deformation groove; 33. a notch groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1, the fireproof cable structure disclosed in the present application includes an insulating layer 10 and a plurality of wires 11 disposed in the insulating layer 10, in this embodiment, the insulating layer 10 is a circular tube, and the number of the wires 11 is five, and the five wires 11 are uniformly distributed along the circumferential direction of the insulating layer 10.

Referring to fig. 1 and 2, specifically, the wire 11 includes a plurality of cable cores 111 and a cable core sleeve 112 wrapped outside the cable cores 111, and the cable core sleeve 112 is made of mica, so that the mica has good high temperature resistance, and the high temperature resistance of the fireproof cable can be effectively improved, thereby preventing fire. The cable core 111 is wrapped by the cable core sleeve 112, so that the high-temperature resistance of the fireproof cable is improved.

Referring to fig. 1 and 3, a fixing tube 20 is installed at a central position of the insulating layer 10, the fixing tube 20 is made of a flexible insulating material, the fixing tube 20 is disposed in a hollow manner, the fixing tube 20 is disposed along a length direction of the insulating layer 10, and the fixing tube 20 and the lead 11 are parallel and extend in the same direction. A plurality of convex strips 21 are arranged outside the fixed tube 20, the convex strips 21 are arranged along the length direction of the fixed tube 20, the plurality of convex strips 21 are uniformly distributed along the circumferential direction of the fixed tube 20, and the number of the convex strips 21 is the same as that of the wires 11. A plurality of grooves 22 have been seted up to one side that sand grip 21 deviates from fixed pipe 20, and groove 22 is seted up along the length direction of sand grip 21, and a plurality of groove 22 is equidistant along the length direction of sand grip 21 sets up, and the groove 22 on two adjacent sand grips 21 is the dislocation set to fireproof cable's bending property has been improved.

Referring to fig. 1 and 2, one side of the convex strip 21 departing from the fixed tube 20 is provided with a plurality of groups of fixed assemblies, the fixed assemblies are used for fixing the wires 11 and the fixed tube 20 relatively so as to reduce the displacement of the wires 11 during the cable manufacturing process, the groups of fixed assemblies are arranged at equal intervals along the length direction of the convex strip 21, the fixed assemblies are arranged between two adjacent grooves 22 on the convex strip 21, and the fixed assemblies are arranged between two adjacent wires 11. Specifically, fixed subassembly includes that two are the holding piece 23 of "eight" style of calligraphy setting, and holding piece 23 is the slope setting from the one end that is close to sand grip 21 to the one end of keeping away from sand grip 21. One end fixed connection of clamping piece 23 deviates from one side of fixed pipe 20 in sand grip 21, and the one end that sand grip 21 was kept away from to clamping piece 23 stretches into between two adjacent wires 11, and one side that two clamping pieces 23 deviate from each other butts respectively in the surface of two adjacent cable core covers 112 for clamping piece 23 colludes and holds fixed wire 11, thereby reduces the condition that wire 11 shifted.

A filling layer 12 is arranged between the insulating layer 10 and the lead 11, wherein the filling layer 12 is composed of inorganic mineral substances, and the melting point of the inorganic mineral substances is above 1000 ℃, so that the fireproof cable can continuously maintain power supply at high temperature, and has better fireproof performance and high flame retardant performance. One side of the insulating layer 10, which is far away from the filling layer 12, is wrapped by a shielding layer 13, and the shielding layer 13 is made of a metal mesh, so that the influence of strong magnetic field and strong current on the normal transmission work of the cable after the current in the lead 11 and the external substances are subjected to electrostatic induction is reduced. One side of the shielding layer 13 departing from the insulating layer 10 is wrapped by the buffer layer 14, a buffer cavity 30 is formed in the buffer layer 14, and the buffer cavity 30 is annularly arranged. A plurality of buffering rubber strips 31 are installed in the buffering cavity 30, the buffering rubber strips 31 are arranged along the length direction of the buffering layer 14, and the plurality of buffering rubber strips 31 are uniformly distributed along the circumferential direction of the buffering layer 14. The inside of the cushion rubber 31 is provided with a deformation groove 32, and the deformation groove 32 is formed along the length direction of the cushion rubber 31. When the fireproof cable receives the bending deformation of exogenic action, the buffering adhesive tape 31 in the cushion chamber 30 cushions the exogenic action to the deformation that buffering adhesive tape 31 produced external force through self in deformation groove 32 cushions once more, has improved fireproof cable's resistance to compression anti-deformation ability effectively.

Referring to fig. 1 and 2, notch grooves 33 have been all seted up on two relative cell walls in deformation groove 32, and notch grooves 33 are "V" type setting, and notch grooves 33 are seted up along the length direction of buffering adhesive tape 31, and the relative setting of the macrostoma end of two notch grooves 33. Through seting up of breach groove 33 for make deformation groove 32 take place to deform after buffering adhesive tape 31 receives the exogenic action, and deformation takes place towards the direction of keeping away from each other for two relative cell walls in deformation groove 32, thereby cushions the exogenic action.

One side parcel that buffer layer 14 deviates from shielding layer 13 has flame retardant coating 15, and the intussuseption of flame retardant coating 15 is filled with the mica granule, cooperation cable core cover 112's setting to further improve fireproof cable's fire behavior effectively. One side parcel that flame retardant coating 15 deviates from buffer layer 14 has inoxidizing coating 16, and inoxidizing coating 16 is made by wear-resisting material to protect fireproof cable effectively, improve fireproof cable's wear resistance.

The implementation principle of the embodiment of the application is as follows: when using fireproof cable, through the setting of filling layer 12 and flame retardant coating 15 for fireproof cable's fire behavior obtains improving, through the setting of wearing layer, protects fireproof cable effectively, improves fireproof cable's wear resistance. And through the arrangement of the shielding layer 13, the influence of strong magnetic field and strong current on the normal transmission work of the cable after the current in the lead 11 and the foreign matter are subjected to electrostatic induction is reduced. Through setting up buffer layer 14, when fireproof cable receives exogenic action bending deformation, buffering adhesive tape 31 in the cushion chamber 30 cushions the exogenic action, and buffering adhesive tape 31 cushions external force once more through the deformation that self produced in deformation groove 32, thereby improved fireproof cable's resistance to compression deformation ability, reduce effectively that the staff tramples easily to fireproof cable when installation fireproof cable on, easily lead to fireproof cable bending deformation to make its inner structure damage, thereby influence fireproof cable's the condition of use.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, 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

1. The utility model provides a fireproof cable structure, includes insulating layer (10) and a plurality of wire (11) that set up in insulating layer (10), its characterized in that: insulating layer (10) with be provided with between wire (11) filling layer (12), insulating layer (10) deviates from one side of filling layer (12) is provided with shielding layer (13), shielding layer (13) deviate from one side of insulating layer (10) is provided with buffer layer (14), cushion chamber (30) have been seted up in buffer layer (14), be provided with a plurality of buffering adhesive tape (31) in cushion chamber (30), buffer layer (14) deviate from one side of shielding layer (13) is provided with flame retardant coating (15), flame retardant coating (15) deviate from one side of buffer layer (14) is provided with inoxidizing coating (16).

2. The flameproof cable structure of claim 1, wherein: a deformation groove (32) is formed in the buffering rubber strip (31), and the deformation groove (32) is formed in the length direction of the buffering rubber strip (31).

3. The flameproof cable structure of claim 1, wherein: the lead (11) comprises a plurality of cable cores (111) and a cable core sleeve (112) arranged outside the cable cores (111), wherein the cable core sleeve (112) is made of high-temperature-resistant materials.

4. A fire-rated cable construction as claimed in claim 3, wherein: be provided with fixed pipe (20) in insulating layer (10), a plurality of sand grips (21) are installed outward to fixed pipe (20), sand grip (21) deviate from one side of fixed pipe (20) is provided with a plurality of groups and is used for making wire (11) and fixed pipe (20) relatively fixed to reduce the fixed subassembly of the condition that a plurality of wires (11) shifted when the preparation cable.

5. The flameproof cable structure of claim 4, wherein: the fixed subassembly includes that two are used for colluding hold fixed two adjacent centre gripping piece (23) of wire (11), the one end of centre gripping piece (23) connect in sand grip (21), keep away from in centre gripping piece (23) the one end of sand grip (21) stretches into adjacent two between wire (11), two one side that centre gripping piece (23) deviate from each other butt respectively in adjacent two outside cable core cover (112).

6. A fire-rated cable construction as claimed in claim 2, wherein: breach groove (33) have all been seted up to two relative inner walls in deformation groove (32), two breach groove (33) are relative setting.

7. The flameproof cable structure of claim 4, wherein: a plurality of grooves (22) are formed in one side, deviating from the fixed pipe (20), of each protruding strip (21), and the adjacent two grooves (22) in the protruding strips (21) are arranged in a staggered mode.

8. The fire-protected cable structure of claim 5, wherein: the clamping piece (23) is obliquely arranged from one end close to the convex strip (21) to one end far away from the convex strip (21).