Antioxidant fireproof PVC environment-friendly cable

Abstract

The utility model provides an anti-oxidation fireproof PVC environment-friendly cable, which comprises a support frame, conductive core bodies, inner sheaths, a protection layer, an outer sheath and a fireproof sleeve, a plurality of conductive core bodies and inner sheaths are fixed in the support frame, and the inner sheaths are respectively wrapped and fixed on the outer side surfaces of the corresponding conductive core bodies; the outer side face of the supporting frame is fixedly wrapped with a protection layer, the outer side face of the protection layer is fixedly wrapped with an outer sheath, and the outer side face of the outer sheath is wrapped with a fireproof sleeve. The inner sheath and the outer sheath are both of a layered structure made of a PVC material. According to the utility model, the support frame, the protection layer and the fireproof sleeve are arranged, so that the conductive core body can be sealed and separated during use, the influence of external flames on the cable can be avoided, and the service life of the cable can be prolonged by replacing the fireproof sleeve.

Description

Technical Field

[0001] This utility model belongs to the field of cable technology, and in particular relates to an antioxidant and fireproof PVC environmentally friendly cable. Background Technology

[0002] PVC cables, or polyvinyl chloride insulated cables, are widely used in power transmission and electrical equipment connections due to their excellent electrical properties, good mechanical properties, and high cost-effectiveness. As industries increasingly demand higher environmental standards for cables, their oxidation resistance, fire resistance, and durability are receiving more and more attention.

[0003] Existing PVC cables typically consist of a conductive core, a support frame, and a simple protective layer. The conductive core is the core component for power transmission, the support frame separates the conductive cores to prevent short circuits, and the protective layer protects the conductive core.

[0004] However, existing PVC cables have the following drawbacks in actual use: First, when the cable is subjected to significant compression, the support frame will deform considerably, and the deformed support frame will lose its ability to separate the conductive cores, resulting in short circuits between the conductive cores; second, existing PVC cables do not have fire resistance; in addition, the protective layer on existing PVC cables is fixed and cannot be replaced when it wears out, thus leading to a shorter service life for the cables.

[0005] Therefore, it is essential to invent an antioxidant, fire-resistant, environmentally friendly PVC cable. Utility Model Content

[0006] To address the above problems, this utility model proposes an antioxidant and fire-resistant PVC environmentally friendly cable. The technical solution used is as follows:

[0007] An antioxidant and fire-resistant PVC environmentally friendly cable includes a support frame, conductive cores, an inner sheath, a protective layer, an outer sheath, and a fireproof sleeve. Several conductive cores and inner sheaths are fixed inside the support frame, with the inner sheaths respectively wrapping and fixing the outer surfaces of the corresponding conductive cores. A protective layer is wrapped and fixed to the outer surface of the support frame, and an outer sheath is wrapped and fixed to the outer surface of the protective layer. The outer sheath is also wrapped with a fireproof sleeve. Both the inner and outer sheaths are made of PVC material in a layered structure.

[0008] Furthermore, the support frame includes a shell, partitions, and buffer blocks. The shell has the same number of partitions as the conductive cores fixed inside, with the other ends of the partitions all fixed together. Buffer blocks are fixed between the partitions, with conductive cores and inner sheaths fixed inside each buffer block. This arrangement can prevent short circuits between the conductive cores, and the shell can prevent external pressure from causing significant deformation of the partitions.

[0009] Furthermore, the protective layer includes a flame-retardant strip and traction ropes. The flame-retardant strip is fixed between the support frame and the outer sheath, and several traction ropes are fixed inside the flame-retardant strip. This arrangement can isolate the flames outside the cable.

[0010] Furthermore, the fireproof sleeve includes a wear-resistant layer and a flame-retardant filler. The wear-resistant layer is wrapped around the outer side of the outer sheath, and the side of the wear-resistant layer has an open structure. The interior of the wear-resistant layer is filled with a flame-retardant filler. This design allows for replacement, thereby improving the service life of the cable. In addition, it can extinguish flames near the cable.

[0011] The inner wall of the wear-resistant layer is evenly provided with several fastening grooves, and the outer side of the outer sheath is fixed with protrusions that are compatible with the fastening grooves. This arrangement can improve the fit between the wear-resistant layer and the outer sheath.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The support frame of this utility model, when in use, can work with the inner sheath to isolate the conductive core from the external gas, thereby preventing oxidation of the conductive core. Secondly, when the cable is subjected to compression, the buffer block can prevent the compression force from damaging the conductive core. In addition, the partition can prevent short circuits between conductive cores, and the outer shell can limit the outer end of the partition, thereby improving the isolation effect of the partition on the conductive core.

[0014] 2. The protective layer of this utility model can isolate the flame retardant tape from the flame outside the cable during use. Secondly, the traction rope can improve the structural strength of the flame retardant tape and prevent the flame retardant tape from breaking after the cable is subjected to multiple bends.

[0015] 3. The fireproof sleeve of this utility model can be replaced on the outer sheath when the cable is worn, thereby improving the service life of the cable. In addition, it can extinguish flames near the cable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the support frame of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the protective layer of this utility model.

[0020] Figure 4 This is a structural schematic diagram of the fireproof sleeve of this utility model.

[0021] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at position "A" in the middle.

[0022] In the picture:

[0023] 1-Support frame, 11-Outer shell, 12-Partition plate, 13-Buffer block, 2-Conductive core, 3-Inner sheath, 4-Protective layer, 51-Flame-retardant strip, 52-Traction rope, 5-Outer sheath, 6-Fireproof sleeve, 61-Wear-resistant layer, 62-Flame-retardant filler, 63-Snap-fit ​​groove. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figure 1As shown, this utility model is an anti-oxidation and fireproof PVC environmentally friendly cable, including a support frame 1, a conductive core 2, an inner sheath 3, a protective layer 4, an outer sheath 5, and a fireproof sleeve 6. Several conductive cores 2 and inner sheaths 3 are fixed inside the support frame 1, wherein the inner sheaths 3 are respectively wrapped and fixed to the outer side of the corresponding conductive cores 2; the outer side of the support frame 1 is wrapped and fixed to the protective layer 4, wherein the outer side of the protective layer 4 is wrapped and fixed to the outer sheath 5, and the outer side of the outer sheath 5 is wrapped to the fireproof sleeve 6; both the inner sheath 3 and the outer sheath 5 are made of PVC material in a layered structure.

[0027] like Figure 2 As shown, the support frame 1 includes a housing 11, partitions 12, and buffer blocks 13. The housing 11 has the same number of partitions 12 as the conductive core 2 fixed inside, with the other ends of the partitions 12 all fixed together. Buffer blocks 13 are fixed between the partitions 12, with the conductive core 2 and inner sheath 3 fixed inside each buffer block 13. When the cable is squeezed, the buffer blocks 13 can buffer the squeezing force, thereby preventing the squeezing force from damaging the conductive core 2. Secondly, the partitions 12 can prevent short circuits between the conductive cores 2. In addition, the housing 11 can limit the outer ends of the partitions 12, thereby improving the isolation effect of the partitions 12 on the conductive core 2 and preventing the partitions 12 from deforming significantly due to external squeezing force.

[0028] like Figure 3 As shown, the protective layer 4 includes a flame-retardant strip 41 and a traction rope 42. The flame-retardant strip 41 is fixed between the support frame 1 and the outer sheath 5, and several traction ropes 42 are fixed inside the flame-retardant strip 41. When in use, the flame-retardant strip 41 can isolate the flame outside the cable. Secondly, the setting of the traction rope 42 can improve the structural strength of the flame-retardant strip 41 and prevent the flame-retardant strip 41 from breaking after the cable is subjected to multiple bends.

[0029] like Figure 4 and Figure 5 As shown, the fireproof sleeve 6 includes an abrasion-resistant layer 61 and a flame-retardant filler 62. The abrasion-resistant layer 61 wraps around the outer side of the outer sheath 5, and the side of the abrasion-resistant layer 61 has an open structure. The interior of the abrasion-resistant layer 61 is filled with flame-retardant filler 62. When the cable is subjected to friction, the abrasion-resistant layer 61 will be damaged first. At this time, the fireproof sleeve 6 can be removed from the outer sheath 5 at the opening of the abrasion-resistant layer 61, and a brand new fireproof sleeve 6 can be wrapped around the outer side of the outer sheath 5 to protect the outer sheath 5. Secondly, when the external flame melts the abrasion-resistant layer 61, the flame-retardant filler 62 can extinguish the flame near the cable.

[0030] Specifically, the inner wall of the wear-resistant layer 61 is evenly provided with several fastening grooves 63, and the outer side of the outer sheath 5 is fixed with protrusions that are compatible with the fastening grooves 63. This arrangement can improve the fit between the wear-resistant layer 61 and the outer sheath 5, thereby preventing relative movement between the wear-resistant layer 61 and the outer sheath 5.

[0031] Please see Figure 1-5 As shown, this utility model is an anti-oxidation and fireproof PVC environmentally friendly cable. Its working principle is as follows: When in use, the conductive core 2 can conduct electricity, while the support frame 1 can separate and seal the conductive core 2 to prevent oxidation of the conductive core 2. Secondly, the protective layer 5 and the fireproof sleeve 6 can prevent the cable from burning. In addition, when the cable is worn, the fireproof sleeve 6 can be replaced, thereby improving the service life of the cable.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-oxidation fireproof PVC environment-friendly cable, comprising a supporting frame (1), a conductive core (2), an inner sheath (3), a protective layer (4), an outer sheath (5) and a fireproof sleeve (6), characterized in that: The support frame (1) has several conductive cores (2) and inner sheaths (3) fixed inside, wherein the inner sheaths (3) are respectively wrapped and fixed on the outer side of the corresponding conductive cores (2); the outer side of the support frame (1) is wrapped and fixed with a protective layer (4), wherein the outer side of the protective layer (4) is wrapped and fixed with an outer sheath (5), and the outer side of the outer sheath (5) is wrapped with a fireproof sleeve (6); both the inner sheath (3) and the outer sheath (5) are made of PVC material in a layered structure.

2. An antioxidant fire retardant PVC environment-friendly cable as claimed in claim 1, wherein: The support frame (1) includes an outer shell (11), partitions (12) and buffer blocks (13). The outer shell (11) has the same number of partitions (12) as the conductive core (2) fixed inside, and the other ends of the partitions (12) are all fixed together. Buffer blocks (13) are fixed between the partitions (12), and the conductive core (2) and inner sheath (3) are fixed inside the buffer blocks (13).

3. An antioxidant fire retardant PVC environment-friendly cable as claimed in claim 1, wherein: the antioxidant fire retardant PVC environment-friendly cable is prepared by using the antioxidant fire retardant PVC environment-friendly cable compound as claimed in claim 1. The protective layer (4) includes a flame-retardant strip (41) and a traction rope (42). The flame-retardant strip (41) is fixed between the support frame (1) and the outer sheath (5), and several traction ropes (42) are fixed inside the flame-retardant strip (41).

4. An antioxidant fire retardant PVC environment-friendly cable as claimed in claim 1, wherein: The fireproof sleeve (6) includes a wear-resistant layer (61) and flame-retardant filler (62). The wear-resistant layer (61) is wrapped around the outer side of the outer sleeve (5), and the side of the wear-resistant layer (61) is an open structure. The interior of the wear-resistant layer (61) is filled with flame-retardant filler (62).

5. The antioxidant and fire-resistant PVC environmentally friendly cable as described in claim 4, characterized in that: The inner wall of the wear-resistant layer (61) is uniformly provided with several fastening grooves (63), and the outer side of the outer sheath (5) is fixed with protrusions that are compatible with the fastening grooves (63).

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