Fireproof wear-resistant wire cable

Abstract

The utility model relates to the technical field of cables, and discloses a fireproof wear-resistant wire cable, which comprises a rubber layer, each slot is internally provided with a reinforcing structure for supporting and tensile strength, each reinforcing structure comprises a support body, a first deformation groove and a second deformation groove, the support body is inserted into the slot, and the first deformation groove is connected with the second deformation groove. A plurality of first deformation grooves are formed in the top face of the supporting body, a plurality of second deformation grooves are formed in the bottom of the supporting body, the supporting body can generate certain deformation bending through the first deformation grooves and the second deformation grooves, and the supporting body can guarantee the tensile strength of the whole cable in the radial direction. The cable has certain bending toughness and high tensile strength at the same time, compared with the prior art adopting radial metal plates, the tensile strength of the whole cable is improved, the bending flexibility of the cable can be guaranteed, the strength of the cable is guaranteed on the basis, and the cable is not prone to fracture due to stretching.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a fireproof and wear-resistant electric wire and cable. Background Art

[0002] The prior art discloses a fire-resistant and wear-resistant wire and cable (CN202320014143.2), comprising a wire core, the outer side of the wire core is fixedly connected to the middle of the insulating layer, the outer side of the insulating layer is provided with a winding layer, the outer side of the winding layer is fixedly connected to one side of the middle of the rubber layer, the outer side of the rubber layer is fixedly connected to the inner wall of the fireproof layer, the outer side of the fireproof layer is fixedly connected to the inner wall of the thermal insulation layer, the outer side of the thermal insulation layer is fixedly connected to the wear-resistant layer, the outer side of the wear-resistant layer is provided with a wear-resistant coating, the middle of the rubber layer is fixedly connected with a metal wire, and the outer side of the partition is fixedly connected to the other side of the middle of the rubber layer.

[0003] In the prior art, a plurality of radially distributed plate-like structures are provided in the rubber layer to support the cable, so that the overall tensile strength of the cable is improved, and the plurality of radially distributed plates have a strong shear resistance effect. Although the supporting strength of the cable is guaranteed, the cable needs to be rolled up for storage and transportation. When rolling up, the plurality of radially distributed plate-like structures make it difficult to bend and roll up the cable, which causes certain inconveniences for storage, transportation and laying along a curved path.

[0004] To this end, we propose a fire-resistant and wear-resistant wire and cable. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a fireproof and wear-resistant electric wire and cable.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire-proof and wear-resistant wire and cable, including a rubber layer, the rubber layer having a plurality of cavities, each cavity being provided with a wire core, a protective layer wrapped around the rubber layer, a plurality of slots being provided at the end of the rubber layer along the extension direction of the wire core, a reinforcing structure for support and tension resistance being installed in each slot, the reinforcing structure comprising a support body, a first deformation groove and a second deformation groove, the support body being plugged into the slot, a plurality of first deformation grooves being provided on the top surface of the support body, a plurality of second deformation grooves being provided on the bottom of the support body, and the support body being able to deform and bend upward or downward.

[0007] As a preferred embodiment of the present invention, the support body forms a rectangular plate structure, the support body is adapted to the slot, and the first deformation groove and the second deformation groove are staggered with each other.

[0008] As a preferred embodiment of the present invention, the horizontal cross-sectional shape formed by the first deformation groove includes a rectangle but is not limited to a rectangle, and the depth of the first deformation groove is less than the height of the support body.

[0009] As a preferred embodiment of the present invention, the cross-sectional shape of the notch formed by the second deformation groove includes a rectangle but is not limited to a rectangle, and the second deformation groove has the same depth as the first deformation groove.

[0010] As a preferred embodiment of the present invention, the reinforcing structure further comprises limiting protrusions, and a plurality of limiting protrusions are arranged on the top surface and the bottom surface of the supporting body, and the limiting protrusions can contact the rubber layer and limit the supporting body.

[0011] As a preferred embodiment of the utility model, the limiting protrusion forms a triangular prism structure, the corners of the limiting protrusion are facing away from the supporting body, the limiting protrusion and the supporting body are integrally formed, the limiting protrusion on the top surface of the supporting body is distributed one-to-one with the second deformation groove, and the limiting protrusion on the bottom of the supporting body is distributed one-to-one with the first deformation groove.

[0012] As a preferred embodiment of the utility model, the reinforcement structure also includes an extension body, the same extension body is arranged in the first deformation groove and the second deformation groove, an extension body is fixedly connected in each first deformation groove and each second deformation groove, the extension body forms an L-shaped folding plate structure, the two end faces of the extension body are respectively fixedly connected to the two side walls opposite to the support body, and the extension body is inclinedly distributed.

[0013] Beneficial Effects

[0014] The utility model provides a fireproof and wear-resistant wire and cable. It has the following beneficial effects:

[0015] 1. This kind of fire-proof and wear-resistant wire and cable, by installing a support body in a slot, and a plurality of first deformation grooves opened on the top surface of the support body and a plurality of second deformation grooves opened on the bottom of the support body, enables the support body to produce a certain deformation and bending through the first deformation grooves and the second deformation grooves when the entire cable is bent and rolled or laid along a bending path, and the support body itself can ensure the tensile strength of the entire cable in the radial direction. The cable has a certain bending toughness and a high tensile strength. Compared with the prior art that uses a radial metal plate to improve the tensile strength of the entire cable, this solution can ensure the bending flexibility of the cable and on this basis ensure the strength of the cable, and it is not easy to break due to stretching.

[0016] 2. This kind of fire-proof and wear-resistant wire and cable is provided with an integrally formed prismatic limiting protrusion. During the bending process of the entire cable, a plurality of limiting protrusions distributed alternately abut against the inner wall of the rubber layer, so that the support body between two adjacent limiting protrusions can bend and extend, and the limiting protrusion abutting against the rubber layer can limit the slippage and excessive stretching of the entire supporting body, so that the cable can bend within a certain range. However, when subjected to radial tension, the supporting body will not over-extend, thereby improving the tensile strength.

[0017] 3. This kind of fire-resistant and wear-resistant wire and cable, by setting an extension body, uses the extension body to connect the petal-shaped structure formed between two adjacent first deformation grooves or two adjacent second deformation grooves, to ensure that the support body can bend but has a higher tensile strength when subjected to radial tension, thereby achieving a balance between the cable's bending performance and tensile strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation of the wire core and the support body of the insulation layer of the utility model;

[0020] Figure 3 This is a schematic diagram of the insulation layer of the utility model;

[0021] Figure 4 This is one of the three-dimensional diagrams of the support body of the utility model;

[0022] Figure 5 This is the second stereoscopic diagram of the support body of the utility model.

[0023] Legend: 10, rubber layer; 11, wire core; 12, protective layer; 20, support body; 21, first deformation groove; 22, second deformation groove; 23, limiting protrusion; 24, extension body. DETAILED DESCRIPTION

[0024] A fire-resistant and wear-resistant wire and cable, such as Figure 1 and Figure 2 As shown, it includes a rubber layer 10, the rubber layer 10 has a plurality of cavities, each of which is provided with a wire core 11, and a protective layer 12 is wrapped around the rubber layer 10. Specifically, the rubber layer 10 is made of rubber material, and the protective layer 12 includes the outermost wear-resistant layer, the wear-resistant layer is made of polyvinyl chloride material; the heat insulation layer, the heat insulation layer is an aluminum foil heat insulation coil; the innermost fireproof layer, the fireproof layer is made of magnesium hydroxide material, so as to realize the fireproof and wear-resistant performance of the cable, and the specific production method and material ratio are not described here.

[0025] like Figure 3 and Figure 4As shown, a plurality of slots are provided at the end of the rubber layer 10 along the extension direction of the wire core 11, and a reinforcing structure for support and tension resistance is installed in each slot, the reinforcing structure includes a support body 20, a first deformation groove 21 and a second deformation groove 22, the support body 20 is plugged into the slot, a plurality of first deformation grooves 21 are provided on the top surface of the support body 20, a plurality of second deformation grooves 22 are provided on the bottom of the support body 20, the support body 20 can be deformed and bent upward or downward, the support body 20 forms a rectangular plate-like structure, the support body 20 is adapted to the slot, the first deformation groove 21 and the second deformation groove 22 are staggered with each other, the horizontal cross-sectional shape formed by the first deformation groove 21 includes a rectangle but is not limited to a rectangle, the depth of the first deformation groove 21 is less than the height of the support body 20, and the notch cross-sectional shape formed by the second deformation groove 22 includes The second deformation groove 22 is equal to the depth of the first deformation groove 21. In the present embodiment, the support body 20 is installed in the slot, and the first deformation grooves 21 on the top surface of the support body 20 and the second deformation grooves 22 on the bottom of the support body 20 are provided. When the whole cable is bent and rolled or laid along a bending path, the first deformation grooves 21 and the second deformation grooves 22 enable the support body 20 to produce a certain deformation and bending, and the support body 20 itself can ensure the tensile strength of the whole cable in the radial direction. The cable has a certain bending toughness and a high tensile strength. Compared with the prior art that uses a radial metal plate to increase the tensile strength of the whole cable, the present embodiment can ensure the bending flexibility of the cable and on this basis ensure the strength of the cable, and is not easy to break due to stretching.

[0026] like Figure 5 As shown, the reinforcement structure also includes a limiting protrusion 23. A plurality of limiting protrusions 23 are arranged on the top and bottom surfaces of the support body 20. The limiting protrusions 23 can contact the rubber layer 10 and limit the support body 20. The limiting protrusions 23 form a triangular prism structure. The corners of the limiting protrusions 23 face away from the support body 20. The limiting protrusions 23 and the support body 20 are integrally formed. The limiting protrusions 23 on the top surface of the support body 20 are distributed one-to-one with the second deformation grooves 22, and the limiting protrusions 23 on the bottom of the support body 20 are distributed with the first deformation grooves 22. The prismatic limiting protrusions 23 are arranged in a one-to-one correspondence. During the bending process of the entire cable, the plurality of interlaced limiting protrusions 23 abut against the inner wall of the rubber layer 10, so that the support body 20 between two adjacent limiting protrusions 23 can be bent and extended. The limiting protrusions 23 abut against the rubber layer 10, which can limit the sliding and excessive stretching of the support body 20. Therefore, the cable can be bent within a certain range, but when subjected to radial tension, the support body 20 will not be excessively extended, thereby improving the tensile strength.

[0027] like Figure 5As shown, the reinforcement structure also includes an extension body 24. The same extension body 24 is arranged in the first deformation groove 21 and the second deformation groove 22. An extension body 24 is fixedly connected in each first deformation groove 21 and each second deformation groove 22. The extension body 24 forms an L-shaped folded plate structure. The two end faces of the extension body 24 are respectively fixedly connected to the two side walls opposite to the support body 20. The extension body 24 is inclinedly distributed. As a supplement to the above scheme, by setting the extension body 24, the petal-like structure formed by connecting two adjacent first deformation grooves 21 or two adjacent second deformation grooves 22 is used to ensure that the support body 20 can bend but has a higher tensile strength when subjected to radial tension, thereby achieving a balance between the bending performance and tensile strength of the cable.

[0028] The working principle of the utility model is as follows: a support body 20 is installed in the slot, and a plurality of first deformation grooves 21 are provided on the top surface of the support body 20 and a plurality of second deformation grooves 22 are provided on the bottom surface of the support body 20, so that when the whole cable is bent and rolled or laid along a bending path, the first deformation grooves 21 and the second deformation grooves 22 enable the support body 20 to generate a certain deformation bending, and the support body 20 itself can ensure the tensile strength of the whole cable in the radial direction, and the integrally formed prismatic limiting protrusions 23, during the bending process of the whole cable, through the plurality of limiting protrusions 23 distributed alternately The inner wall of the rubber layer 10 is abutted against the support body 20 between two adjacent limiting protrusions 23 so that it can bend and extend, and the limiting protrusion 23 abutting against the rubber layer 10 can limit the slippage and excessive stretching of the entire rubber layer 10, thereby enabling the cable to bend within a certain range but the support body 20 will not over-extend when subjected to radial tension. By providing an extension body 24 and connecting the petal-shaped structure formed between two adjacent first deformation grooves 21 or two adjacent second deformation grooves 22 with the extension body 24, it is ensured that the support body 20 can bend but has a higher tensile strength when subjected to radial tension.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fireproof and wear-resistant wire and cable, comprising a rubber layer (10), the rubber layer (10) having a plurality of cavities, each of which is provided with a wire core (11), and a protective layer (12) wrapped around the rubber layer (10), characterized in that: The end of the rubber layer (10) is provided with a plurality of slots along the extension direction of the wire core (11), and a reinforcing structure for supporting and resisting tension is installed in each slot, and the reinforcing structure comprises a support body (20), a first deformation groove (21) and a second deformation groove (22). The support body (20) is plugged into the slot, and a plurality of first deformation grooves (21) are provided on the top surface of the support body (20), and a plurality of second deformation grooves (22) are provided on the bottom surface of the support body (20), and the support body (20) can be deformed and bent upward or downward.

2. The fireproof and wear-resistant wire and cable according to claim 1, characterized in that: The support body (20) forms a rectangular plate-shaped structure, the support body (20) is adapted to the slot, and the first deformation groove (21) and the second deformation groove (22) are staggered and distributed with respect to each other.

3. The fireproof and wear-resistant wire and cable according to claim 1, characterized in that: The horizontal cross-sectional shape formed by the first deformation groove (21) includes a rectangle but is not limited to a rectangle, and the depth of the first deformation groove (21) is less than the height of the support body (20).

4. The fireproof and wear-resistant wire and cable according to claim 1, characterized in that: The cross-sectional shape of the notch formed by the second deformation groove (22) includes a rectangle but is not limited to a rectangle, and the second deformation groove (22) and the first deformation groove (21) have the same depth.

5. The fireproof and wear-resistant wire and cable according to claim 1, characterized in that: The reinforcement structure further comprises limiting protrusions (23), and a plurality of limiting protrusions (23) are arranged on the top surface and the bottom surface of the support body (20), and the limiting protrusions (23) can contact the rubber layer (10) and limit the support body (20).

6. The fireproof and wear-resistant wire and cable according to claim 5, characterized in that: The limiting protrusion (23) forms a triangular prism structure, the corners of the limiting protrusion (23) are oriented in a direction away from the support body (20), the limiting protrusion (23) and the support body (20) are integrally formed, the limiting protrusion (23) on the top surface of the support body (20) and the second deformation groove (22) are distributed in a one-to-one correspondence, and the limiting protrusion (23) on the bottom surface of the support body (20) and the first deformation groove (21) are distributed in a one-to-one correspondence.

7. The fireproof and wear-resistant wire and cable according to claim 1, characterized in that: The reinforcement structure further comprises an extension body (24), the same extension body (24) is arranged in the first deformation groove (21) and the second deformation groove (22), an extension body (24) is fixedly connected in each first deformation groove (21) and each second deformation groove (22), the extension body (24) forms an L-shaped folded plate structure, two end faces of the extension body (24) are respectively fixedly connected to the two side walls opposite to the support body (20), and the extension body (24) is inclinedly distributed.

Images