Elastomer composite fireproof cable for urban fire fighting
By incorporating inner and outer buffer plates, buffer grooves, and reinforcing ribs into the cable, the problem of cable susceptibility to damage during fires is solved, achieving durability and flexibility in high-temperature environments and ensuring the continuous operation of fire-fighting equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-10
AI Technical Summary
Existing urban fire-fighting elastomeric composite fire-resistant cables are easily damaged in high temperatures or fires, and their bending resistance and buffer protection are insufficient, affecting the normal operation of fire-fighting equipment.
The cable employs a multi-layered structural design, including an inner buffer sheet and an outer buffer sheet, combined with buffer grooves, buffer ribs, and energy-absorbing grooves to form buffer space and movement space, enhancing the cable's flexibility and buffer protection.
Maintaining the integrity and flexibility of cables during a fire ensures the continuous operation of fire-fighting equipment, reduces the generation of toxic fumes, and improves the durability and flexibility of cables.
Smart Images
Figure CN224110003U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of fireproof cable, especially relates to a kind of elastomer composite fireproof cable for city fire protection. BACKGROUND
[0002] The elastomer composite fireproof cable for city fire protection is a high-performance cable specially designed for fire safety, mainly used in the fire safety power supply system of public places such as buildings, subways and tunnels. Its background technology comes from the strict requirements for cable safety performance in fire environment. Traditional cables are easily damaged in high temperature or fire, leading to power interruption and affecting the normal operation of fire fighting equipment. The elastomer composite fireproof cable uses special elastomer materials and composite fireproof layer, with excellent fire resistance, high temperature resistance, flexibility and mechanical strength, which can keep power on for a long time in fire and ensure the continuous operation of fire fighting equipment. In addition, its low-smoke and halogen-free characteristics reduce the generation of toxic smoke, further ensuring personnel safety.
[0003] To reduce the size, the existing cable sets the conductor into a triangle, which is more compact in the cable, while ensuring the strength. However, due to the lack of internal support and buffer, the bending resistance of the entire cable is reduced, and the strength of the surface layer is also high, which is not conducive to the buffer protection of the cable under impact.
[0004] To solve the above problems, the elastomer composite fireproof cable for city fire protection is proposed in this application. CONTENT OF UTILITY MODEL
[0005] The purpose of the utility model is to provide an elastomer composite fireproof cable for city fire protection, which solves the problems raised in the background technology.
[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:
[0007] The utility model is an elastomer composite fireproof cable for city fire protection, which includes a plurality of cable cores spliced into the inner core, the plurality of cable cores are distributed in a circle and form a cylindrical shape outside, the cable core is provided with an insulation layer outside, the insulation layer is wrapped with an inner armor layer outside, the inner armor layer is wrapped with an inner buffer sheet outside, the inner buffer sheet is wrapped with an outer buffer sheet outside, the outer buffer sheet is wrapped with an outer armor layer outside, the outer armor layer is coated and formed with a fireproof shielding layer outside, and the fireproof shielding layer is coated and formed with an outer surface layer outside; the inner buffer sheet and the outer buffer sheet are both distributed in a circle and form a plurality of, the plurality of inner buffer sheets form a wrapping sleeve outside the inner armor layer, the plurality of outer buffer sheets form a wrapping sleeve outside the inner buffer sheet, and the plurality of outer buffer sheets form a cylindrical shape outside after combination.
[0008] Further, the inner side of the inner buffer sheet is a smooth arc surface and tightly contacts the outer part of the inner armor layer, the outer side of the inner buffer sheet forms a buffer groove distributed along the axial direction, and the buffer grooves are uniformly distributed along the circumferential surface of the inner buffer sheet.
[0009] Further, an energy absorption groove is arranged along the axial direction between two adjacent buffer grooves distributed along the circumference, and the buffer grooves and the energy absorption grooves are distributed along the circumference and parallel to each other.
[0010] Further, the outer side of the outer buffer sheet is a smooth arc surface and is wrapped by the outer armor layer, the inner side of the outer buffer sheet forms a buffer rib distributed along the axial direction, and the buffer ribs are uniformly distributed along the circumferential surface of the outer buffer sheet and correspond to the buffer grooves arranged along the circumference.
[0011] Further, a buffer space is formed between the buffer groove and the buffer rib, and the energy absorption groove absorbs energy when the buffer groove and the buffer rib are pressed.
[0012] Further, the buffer ribs distributed along the axial direction are distributed at intervals, and a buffer cavity is formed on the outer side of the inner buffer sheet between adjacent buffer ribs distributed along the axial direction.
[0013] Further, the gap between adjacent inner buffer sheets is wrapped by a single outer buffer sheet.
[0014] The utility model has the following beneficial effects:
[0015] The utility model discloses a cable structure, which comprises an inner armor layer, an outer armor layer and a plurality of buffer sheets arranged along the circumference and distributed along the axial direction.
[0016] The utility model discloses a cable structure, which comprises an inner armor layer, an outer armor layer and a plurality of buffer sheets arranged along the circumference and distributed along the axial direction.
[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 It is the overall appearance structure schematic diagram of the present application;
[0020] Figure 2 It is the structure schematic diagram of the cable section;
[0021] Figure 3 It is the structure schematic diagram of the inner buffer sheet local amplification;
[0022] Figure 4 It is the structure schematic diagram of the outer buffer sheet local amplification;
[0023] In the drawings, the component list represented by each sign is as follows:
[0024] In the drawings: 1, cable core; 11, insulation layer; 2, inner armor layer; 3, inner buffer sheet; 31, buffer groove; 32, energy absorption groove; 4, outer buffer sheet; 41, buffer rib; 5, outer armor layer; 6, fireproof shielding layer; 7, outer surface layer. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0026] In the description of the present application, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.
[0027] Please refer to Figure 1 - Figure 4As shown, the utility model is a kind of urban fire prevention elastic body composite fireproof cable, including the plurality of cable core 1 spliced in inner core, the plurality of cable core 1 is distributed in circumference and forms column shape outside, cable core 1 outside is equipped with insulating layer 11, insulating layer 11 outside is wrapped with inner armour layer 2, inner armour layer 2 outside is wrapped with inner buffer sheet 3, inner buffer sheet 3 outside is wrapped with outer buffer sheet 4, outer buffer sheet 4 outside is wrapped with outer armour layer 5, outer armour layer 5 outside is covered with fireproof shielding layer 6, and outer surface layer 7 is formed outside fireproof shielding layer 6;Inner buffer sheet 3 and outer buffer sheet 4 are all distributed in circumference, and the plurality of inner buffer sheet 3 forms wrapping sleeve outside inner armour layer 2, and the plurality of outer buffer sheet 4 forms wrapping sleeve outside inner buffer sheet 3, and the plurality of outer buffer sheet 4 is combined and forms column shape outside.
[0028] Wherein, the inner side of inner buffer sheet 3 is smooth arc surface and tightly adheres to the outside of inner armour layer 2, the outside of inner buffer sheet 3 is formed with buffer groove 31 distributed along the axial direction, and buffer groove 31 is uniformly distributed along the outer surface of inner buffer sheet 3, and the cross section of buffer groove 31 is V-shaped in the embodiment, which cooperates with buffer rib 41 to achieve the purpose of buffering, and can automatically reset under mutual extrusion, to ensure the integrity of cable shape and cable durability.
[0029] Wherein, energy absorption groove 32 is also provided between the two adjacent buffer grooves 31 distributed in circumference and arranged along the axial direction, and buffer groove 31 and energy absorption groove 32 are distributed in circumference and parallel to each other, and energy absorption groove 32 is in reset state under the condition of no pressure in the embodiment, and only when buffer groove 31 and buffer rib 41 are extruded, the gap of energy absorption groove 32 will be reduced, to achieve energy absorption effect.
[0030] Wherein, the outside of outer buffer sheet 4 is smooth arc surface and is wrapped by outer armour layer 5, the inside of outer buffer sheet 4 is formed with buffer rib 41 distributed along the axial direction, and buffer rib 41 is uniformly distributed along the inner surface of outer buffer sheet 4 and corresponds to buffer groove 31 arranged in circumference, and buffer groove 31 and buffer rib 41 arranged in circumference cooperate in the embodiment, to form buffer on the whole outside of cable, and protection is more comprehensive and sufficient.
[0031] Wherein, buffer space is formed between buffer groove 31 and buffer rib 41, and energy absorption groove 32 absorbs energy when they are pressed, and the cooperation of buffer groove 31 and buffer rib 41 in the embodiment can form buffer cavity inside while ensuring the integrity of cable, to improve the flexibility and buffering effect of cable outside, which can play a better protection role, and can be more safely and reliably and flexibly used in urban fire prevention, with higher flexibility.
[0032] The axially distributed buffer ribs 41 are spaced apart, and buffer cavities are formed between adjacent axially spaced apart buffer ribs 41 on the outer side of the inner buffer piece 3, which in this embodiment are used to provide deformation space when the cable is bent, thereby ensuring the flexibility of the cable.
[0033] The gap between adjacent inner buffer pieces 3 is wrapped by a single outer buffer piece 4, which in this embodiment can simultaneously position the inner buffer piece 3 after wrapping the inner buffer piece 3, thereby providing stronger support between the structures.
[0034] It can be understood that the utility model sets the circumferentially distributed inner buffer piece and outer buffer piece outside the inner armor layer, uses the interaction of the buffer groove, buffer rib and energy absorption groove to achieve the buffering effect when under pressure, and at the same time provides the activity space for the cable bending through the spaced apart buffer ribs, and the buffering protection and flexibility are considered; in addition, the splicing of the inner buffer piece and the inner armor layer and the outer buffer piece is staggered, so that the outer buffer piece limits the inner buffer piece, and in combination with the outer armor layer, the fireproof shielding layer and the outer surface layer, a complete closed cable structure is formed, which improves the production convenience and ensures the structural reliability.
[0035] One specific application of this embodiment is that the cable core 1 with an insulating layer 11 on the outside and a triangular cross section is spliced, the inner armor layer 2 is wound on the outside to position the plurality of cable cores 1 while strengthening the cable, and then a plurality of inner buffer pieces 3 are wrapped in the circumferential direction outside the inner armor layer 2, the inner buffer pieces 3 wrap the outside of the inner armor layer 2, and the outer buffer piece 4 is wrapped in the circumferential direction outside the inner buffer piece 3, it should be noted that the joint of the two inner buffer pieces 3 should be covered when the outer buffer piece 4 is wrapped, the buffer rib 41 is located in the buffer groove 31 after the abutment of the outer buffer piece 4 and the inner buffer piece 3, at this time the energy absorption groove 32 is in an uncompressed state, and then the outer armor layer 5 is formed by winding on the outside of the outer buffer piece 4, and the fireproof shielding layer 6 and the outer surface layer 7 are sequentially wrapped and formed on the outside of the outer armor layer 5, and the buffer groove 31 and the energy absorption groove 32 and the buffer rib 41 form a radial buffer and deformation space after the cable processing is completed, and the adjacent buffer ribs 41 distributed in the axial direction form a buffer and deformation space when bent.
[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0037] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.
Claims
1. An urban fire-fighting elastomer composite fireproof cable, comprising a plurality of cable cores (1) spliced in an inner core, the plurality of cable cores (1) being distributed in a circle and forming a column shape outside, an insulation layer (11) being arranged outside the cable core (1), and an inner armor layer (2) being wrapped outside the insulation layer (11), characterized in that: The inner armor layer (2) is externally wrapped by an inner buffer sheet (3), the inner buffer sheet (3) is externally wrapped by an outer buffer sheet (4), the outer buffer sheet (4) is externally wrapped by an outer armor layer (5), the outer armor layer (5) is externally overmolded with a fireproof shielding layer (6), and the fireproof shielding layer (6) is externally overmolded with an outer surface layer (7). The inner buffer sheet (3) and the outer buffer sheet (4) are both circumferentially distributed multiple strips, the multiple inner buffer sheets (3) form a wrapping sleeve outside the inner armor layer (2), the multiple outer buffer sheets (4) form a wrapping sleeve outside the inner buffer sheet (3), and the multiple outer buffer sheets (4) combine to form a cylinder outside.
2. A fire resistant elastomeric composite cable for urban fire fighting according to claim 1, characterized in that: The inner side of the inner buffer sheet (3) is a smooth arc surface and is tightly attached to the outside of the inner armor layer (2), the outer side of the inner buffer sheet (3) is formed with buffer grooves (31) distributed along the axial direction, and the buffer grooves (31) are circumferentially and uniformly distributed along the outer surface of the inner buffer sheet (3).
3. A fire resistant elastomeric composite cable for urban fire fighting according to claim 2, characterized in that: Adjacent two buffer grooves (31) circumferentially distributed are also provided with energy absorption grooves (32) arranged along the axial direction, and the buffer grooves (31) and the energy absorption grooves (32) are circumferentially and spacedly distributed and parallel to each other.
4. A fire resistant elastomeric composite cable for urban fire fighting according to claim 2, characterized in that: The outer side of the outer buffer sheet (4) is a smooth arc surface wrapped by the outer armor layer (5), the inner side of the outer buffer sheet (4) is formed with buffer ribs (41) distributed along the axial direction, and the buffer ribs (41) are circumferentially and uniformly distributed along the inner surface of the outer buffer sheet (4) and correspond to the circumferentially arranged buffer grooves (31).
5. A fire resistant elastomeric composite cable for urban fire fighting according to claim 4, characterized in that: The buffer grooves (31) and the buffer ribs (41) form a buffer space between them, and the energy absorption grooves (32) absorb energy when the two are pressed.
6. A fire resistant elastomeric composite cable for urban fire fighting according to claim 4, characterized in that: The buffer ribs (41) distributed along the axial direction are spacedly distributed, and adjacent buffer ribs (41) axially and spacedly distributed form a buffer cavity located on the outer side of the inner buffer sheet (3).
7. A fire resistant elastomeric composite cable for urban fire fighting according to claim 1, characterized in that: The gap between adjacent inner buffer sheets (3) is wrapped by a single outer buffer sheet (4).