Stretch-resistant fireproof electric wire

Abstract

The utility model discloses a tensile fireproof electric wire, which comprises an electric wire body and an outer protective layer arranged on the outermost side of the electric wire body, and a wire core body is arranged at the central position in the electric wire body. The inner side of the outer protective layer is provided with an anti-tensile assembly, the anti-tensile assembly comprises an elastic anti-tensile layer, and the elastic anti-tensile layer is distributed in a hollow structure; wherein the tensile assembly comprises deformation groove holes, and the deformation groove holes are formed in the elastic tensile layer at equal intervals; a fireproof assembly is arranged in the elastic tensile layer and comprises a fireproof heat insulation layer, and a positioning filling layer is arranged on the inner side of the fireproof heat insulation layer. According to the tensile fireproof electric wire, the tensile acting force is conducted and dispersed through the elastic tensile layer in the electric wire body and the formed deformation groove holes, the tensile effect is improved, fire prevention and heat insulation are achieved through the deformable fireproof isolation rings, and normal operation of the electric wire body is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fire-resistant electrical wire technology, specifically a tensile-resistant fire-resistant electrical wire. Background Technology

[0002] Fire-resistant wires refer to wires and cables with flame-retardant or fire-resistant properties. They are mainly used to prevent the spread of fire or to ensure emergency power supply. Their core characteristic is that they achieve the performance of being completely non-combustible or extremely difficult to burn through inorganic mineral insulation materials. Compared with ordinary flame-retardant wires (which can only self-extinguish when removed from the fire), fire-resistant wires can still ensure power transmission in flames.

[0003] The utility model patent with announcement number CN206134294U discloses a tensile fireproof control cable. It uses low-smoke halogen-free polyethylene hydrocarbon as the insulation layer, which effectively protects the insulation performance under high temperature and fire conditions, thereby improving the service life of the product. The tensile layer and heat insulation layer protect the integrity and insulation performance of the mica tape insulation layer at the fire scene. It adopts interlocking armor protection, which is not easily deformed, has good flexibility, strong tensile strength, facilitates construction and installation, and increases service life.

[0004] However, the aforementioned tensile fireproof control cables still have the following problems in actual use: the fireproof effect is achieved for a certain period of time through the protective mica tape insulation layer set inside the cable, but because such cables have protective components such as mica tape insulation layer and interlocking armor layer inside, they cannot form an effective tensile resistance. When the cable is stretched and deformed, the internal interlocking armor layer causes an interlocking reaction, which can easily cause it to fall off after being stressed. The cable needs to be spliced ​​during installation, and the end face lacks the required protection after being cut.

[0005] Therefore, we propose a tensile-resistant fireproof wire to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to overcome the problems of deformation resistance and fire resistance of wires in the above-mentioned background technology, and to design a wire that is tensile-resistant, can disperse force, and can effectively ensure fire resistance and heat insulation.

[0007] To achieve the above objectives, the technical approach adopted by this utility model is as follows: the tensile force is transmitted and dispersed through the elastic tensile layer inside the wire body and the deformation slots, thereby improving the tensile strength. Fireproof and heat insulation are achieved by the deformable fireproof isolation ring, ensuring the normal operation of the wire body.

[0008] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0009] A fire-resistant wire with tensile strength includes a wire body and an outer protective layer disposed on the outermost side of the wire body, and a wire core body is disposed at the inner center of the wire body.

[0010] It also includes: an anti-tensile component is provided on the inner side of the outer protective layer, and the anti-tensile component includes an elastic anti-tensile layer, and the elastic anti-tensile layer is distributed in a hollow structure.

[0011] The tensile component includes deformation slots, which are equidistantly spaced within the elastic tensile layer.

[0012] The elastic tensile layer is internally provided with a fireproof component, which includes a fireproof and heat-insulating layer, and the inner side of the fireproof and heat-insulating layer is provided with a positioning and filling layer.

[0013] Further defining the above technical solution, the outer protective layer is located on the outermost side of the wire body, and the outer protective layer is made of polyethylene material. The outer protective layer protects the tensile components, fire-resistant components, and wire core inside the wire body.

[0014] Further defining the above technical solution, the tensile component includes a main compression layer and a secondary compression layer, wherein the main compression layer is attached to the inner wall of the outer protective layer, and the secondary compression layer is attached to the inner wall of the main compression layer, and both the main compression layer and the secondary compression layer are made of PVC plastic material.

[0015] Further defining the above technical solution, the elastic tensile layer of the tensile component is attached to the inner wall of the secondary compressive layer, and the elastic tensile layer improves the deformation capacity and the recovery effect after deformation through the deformation slots opened at equal intervals inside. Moreover, the deformation slots are opened in a diamond structure to reduce the weight of the wire body and improve the heat dissipation effect of the wire core body.

[0016] Further defining the above technical solution, the fireproof component includes a fireproof and heat-insulating layer disposed inside the elastic tensile layer, and the fireproof and heat-insulating layer and the elastic tensile layer are not bonded together. A fireproof isolation ring is installed through the gap between the fireproof and heat-insulating layer and the elastic tensile layer.

[0017] Further defining the above technical solution, the fireproof component includes fireproof isolation rings that are fixedly installed at equal intervals on the outer wall of the fireproof and heat-insulating layer, and positioning support rings are fixedly installed on both the left and right sides of the fireproof isolation rings that are set at equal intervals, and the outer end of the fireproof isolation ring in the initial state extends to the inner wall of the elastic tensile layer.

[0018] Further defining the above technical solution, the fireproof component includes fireproof isolation rings with a "U"-shaped cross-section, and the outer end of the fireproof isolation ring flips downward after being heated, thereby covering the outer wall of the fireproof and heat-insulating layer, so that the outer ends of adjacent fireproof isolation rings fit together to protect the internal wire core body.

[0019] Further defining the above technical solution, an insulating tape layer is fixedly provided at equal angles inside the positioning filling layer, and the insulating tape layer is sleeved on the outside of the wire core body. The positioning filling layer and the insulating tape layer protect and position the wire core body, preventing misalignment during bending and twisting.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the tensile-resistant fireproof wire, through the elastic tensile-resistant layer inside the wire body and the opened deformation slots, transmits and disperses the tensile force, thereby improving the tensile resistance, and the deformable fireproof isolation ring achieves fireproof and heat insulation, ensuring the normal operation of the wire body. The specific details are as follows:

[0021] 1. The wire body is protected by an outer protective layer, which enhances the wear resistance of the wire body during installation and dragging.

[0022] Furthermore, the outer protective layer is internally configured with a primary pressure-resistant layer and a secondary pressure-resistant layer. Through their close fit, the pressure resistance of the wire body is enhanced, preventing misalignment of the internal wire cores under pressure and thus affecting the transmission performance.

[0023] 2. When subjected to tension, the force is transmitted to the interior of the wire body, and the tensile force is dispersed by the elastic tensile layer and the deformation slots opened inside. After the force is evenly distributed, the tensile deformation of the deformation slots can be enhanced and restored, thereby improving the tensile resistance of the wire body.

[0024] The fireproof and heat-insulating layer blocks external heat, which is conducted to the fireproof isolation ring, causing its outer end to roll inward and adhere to each other. This forms a heat-insulating protection for the inner core body and the positioning filler layer, reducing heat conduction and preventing it from affecting the normal transmission operation of the core body.

[0025] 3. The positioning filler layer is used to install the insulation layer of the tape. The wire core body is placed inside the insulation layer of the tape. The positioning filler layer positions the insulation layer of the tape and the wire core body, preventing the wire core body from being misaligned due to twisting or bending during installation, and ensuring the normal service life of the wire body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0027] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the elastic tensile layer of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the deformation slot hole of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure for installing the wire core body of this utility model;

[0031] Figure 6 This is a schematic cross-sectional view of the fireproof isolation ring structure of this utility model.

[0032] In the diagram: 1. Wire body; 2. Outer protective layer; 3. Wire core body; 4. Elastic tensile layer; 5. Deformation groove; 6. Fireproof and heat insulation layer; 7. Positioning and filling layer; 8. Main compressive strength layer; 9. Secondary compressive strength layer; 10. Fireproof isolation ring; 11. Positioning support ring; 12. Wrapping insulation layer. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-6 The present invention provides the following technical solution:

[0035] Example 1: In order to solve the problems existing in the actual use of existing fire-resistant wires, this example discloses the following technical solution: a tensile-resistant fire-resistant wire, including a wire body 1 and an outer protective layer 2 disposed on the outermost side of the wire body 1. The outer protective layer 2 is disposed on the outermost side of the wire body 1 and is made of polyethylene material. The outer protective layer 2 protects the tensile-resistant components, fire-resistant components and wire core body 3 inside the wire body 1.

[0036] The tensile component includes a main compression layer 8 and a secondary compression layer 9. The main compression layer 8 is attached to the inner wall of the outer protective layer 2, and the secondary compression layer 9 is attached to the inner wall of the main compression layer 8. Both the main compression layer 8 and the secondary compression layer 9 are made of PVC plastic.

[0037] like Figures 1-2As shown, the wire body 1 is protected by the outermost protective layer 2, which provides overall protection. The outer protective layer 2 is made of polyethylene material to enhance the protective effect during installation, dragging and friction.

[0038] Furthermore, the outer protective layer 2 is provided with a main pressure-resistant layer 8 and a secondary pressure-resistant layer 9 inside. The main pressure-resistant layer 8 and the secondary pressure-resistant layer 9 are bonded together to provide support and protection when the wire body 1 is under pressure, so as to prevent the internal wire core body 3 from being misaligned under pressure and affecting the transmission effect.

[0039] Example 2: To address the problems existing in the actual use of existing fire-resistant wires, this example discloses the following technical solution: A tensile-resistant component is provided on the inner side of the outer protective layer 2, and the tensile-resistant component includes an elastic tensile layer 4, which is distributed in a hollow structure. The tensile-resistant component includes deformation slots 5, which are equidistantly spaced within the elastic tensile layer 4. The elastic tensile layer 4 is attached to the inner wall of the secondary pressure-resistant layer 9. The elastic tensile layer 4 enhances its deformation capacity and recovery effect after deformation through the equidistantly spaced deformation slots 5. The deformation slots 5 are arranged in a diamond shape, reducing the weight of the wire body 1 and improving the heat dissipation effect of the wire core body 3.

[0040] like Figures 3-4 As shown, during the tensile process of the wire body 1, the force is transmitted to the elastic tensile layer 4. The force is divided by the deformation slots 5 that are equally spaced inside the elastic tensile layer 4. This reduces the degree of deformation of the wire body 1 through the deformation of the deformation slots 5, and allows the elastic tensile layer 4 to restore the structure after stretching, thereby increasing the deformation and achieving the tensile resistance effect.

[0041] Example 3: In order to solve the problems existing in the actual use of existing fire-resistant wires, this example discloses the following technical solution: a fireproof component is provided inside the elastic tensile layer 4, and the fireproof component includes a fireproof heat insulation layer 6, and a positioning filling layer 7 is provided on the inner side of the fireproof heat insulation layer 6; the fireproof heat insulation layer 6 included in the fireproof component is disposed inside the elastic tensile layer 4, and the fireproof heat insulation layer 6 and the elastic tensile layer 4 are not attached to each other, and a fireproof isolation ring 10 is installed through the gap between the fireproof heat insulation layer 6 and the elastic tensile layer 4.

[0042] The fireproof component includes fireproof isolation rings 10 that are fixedly installed at equal intervals on the outer wall of the fireproof insulation layer 6. Positioning support rings 11 are fixedly installed on both the left and right sides of the fireproof isolation rings 10 that are set at equal intervals. In the initial state, the outer end of the fireproof isolation rings 10 extends to the inner wall of the elastic tensile layer 4. The cross-section of the fireproof isolation rings 10 included in the fireproof component is distributed in a "U" shape. After being heated, the outer end of the fireproof isolation rings 10 flips downward and covers the outer wall of the fireproof insulation layer 6, so that the outer ends of adjacent fireproof isolation rings 10 fit together to protect the internal wire core body 3.

[0043] like Figure 3 , Figures 5-6 As shown, the core body 3 and the positioning filler layer 7 are blocked from external heat by the outer fireproof and heat-insulating layer 6. When the fire starts to burn, the heat is conducted to the corresponding fireproof isolation rings 10, causing the outer end of the fireproof isolation ring 10 to roll inward and then lay flat on the outer wall of the fireproof and heat-insulating layer 6. After deformation, the ends of the adjacent fireproof isolation rings 10 stick together, thus forming heat insulation protection for the inner core body 3 and the positioning filler layer 7, reducing heat conduction and avoiding affecting the normal transmission operation of the core body 3.

[0044] The wire core body 3 is located at the center of the wire body 1; the positioning filling layer 7 is fixedly provided with a wrapping insulation layer 12 at equal angles inside, and the wrapping insulation layer 12 is sleeved on the outside of the wire core body 3. The positioning filling layer 7 and the wrapping insulation layer 12 protect and position the wire core body 3 to prevent misalignment when bending or twisting.

[0045] like Figure 5 As shown, the positioning filling layer 7 inside the wire body 1 installs the wrapping insulation layer 12 so that the wire core body 3 is placed inside the wrapping insulation layer 12. The positioning filling layer 7 positions the wrapping insulation layer 12 and the wire core body 3, preventing misalignment of the wire core body 3 caused by twisting or bending during installation, and ensuring the normal service life of the wire body 1.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tensile-resistant fireproof wire, comprising a wire body (1) and an outer protective layer (2) disposed on the outermost side of the wire body (1), and a wire core body (3) disposed at the inner center of the wire body (1); characterized in that Also includes: The outer protective layer (2) is provided with a tensile component on its inner side, and the tensile component includes an elastic tensile layer (4), and the elastic tensile layer (4) is distributed in a hollow structure. The tensile component includes deformation slots (5), and the deformation slots (5) are opened in an equidistant manner inside the elastic tensile layer (4); The elastic tensile layer (4) is provided with a fireproof component inside, and the fireproof component includes a fireproof and heat-insulating layer (6), and a positioning and filling layer (7) is provided on the inner side of the fireproof and heat-insulating layer (6).

2. A fire resistant electrical cable according to claim 1, wherein: The outer protective layer (2) is disposed on the outermost side of the wire body (1), and the outer protective layer (2) is made of polyethylene material. The outer protective layer (2) protects the tensile components, fireproof components and wire core body (3) inside the wire body (1).

3. A fire resistant wire as defined in claim 1, wherein: The tensile component includes a main compression layer (8) and a secondary compression layer (9), with the main compression layer (8) attached to the inner wall of the outer protective layer (2) and the secondary compression layer (9) attached to the inner wall of the main compression layer (8). Both the main compression layer (8) and the secondary compression layer (9) are made of PVC plastic.

4. A fire resistant electrical cable according to claim 3, wherein: The tensile component includes an elastic tensile layer (4) that is attached to the inner wall of the sub-compression layer (9). The elastic tensile layer (4) enhances the deformation capacity and the recovery effect after deformation through the deformation slots (5) that are opened at equal intervals inside. The deformation slots (5) are opened in a diamond shape, which reduces the weight of the wire body (1) and improves the heat dissipation effect of the wire core body (3).

5. A fire resistant wire as defined in claim 1, wherein: The fireproof component includes a fireproof and heat-insulating layer (6) disposed inside the elastic tensile layer (4), and the fireproof and heat-insulating layer (6) and the elastic tensile layer (4) are not attached to each other. A fireproof isolation ring (10) is installed through the gap between the fireproof and heat-insulating layer (6) and the elastic tensile layer (4).

6. A fire resistant electrical cable according to claim 5, wherein: The fireproof component includes fireproof isolation rings (10) that are fixedly installed at equal intervals on the outer wall of the fireproof insulation layer (6). The fireproof isolation rings (10) are fixedly provided with positioning support rings (11) on both the left and right sides. The outer end of the fireproof isolation rings (10) in the initial state extends to the inner wall of the elastic tensile layer (4).

7. A fire-resistant electrical wire with tensile strength according to claim 6, characterized in that: The fireproof component includes fireproof isolation rings (10) with a U-shaped cross-section. After being heated, the outer end of the fireproof isolation rings (10) flips downward and covers the outer wall of the fireproof insulation layer (6), so that the outer ends of adjacent fireproof isolation rings (10) fit together to protect the internal wire core body (3).

8. A fire resistant wire as defined in claim 1, wherein: The positioning filling layer (7) is fixedly provided with a wrapping insulation layer (12) at equal angles inside, and the wrapping insulation layer (12) is sleeved on the outside of the core body (3). The positioning filling layer (7) and the wrapping insulation layer (12) protect and position the core body (3) to avoid misalignment when bending or twisting.

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