A wire torsion-resistant support structure

Abstract

The utility model discloses a kind of electric wire torsion-resistant support structures, it is related to electric wire cable technical field, including outer sheath pipe, outer sheath pipe is sequentially provided with first tape layer, first wire harness group, first inner sheath pipe, second tape layer, second wire harness group, second inner sheath pipe and reinforcing pipe, first tape layer is forwardly wound in the circumferential side of first wire harness group, first wire harness group is reversely wound in the circumferential side of first inner sheath pipe, second tape layer is reversely wound in the circumferential side of second wire harness group, second wire harness group is forwardly wound in the circumferential side of second inner sheath pipe.The utility model first wire harness group reversely winds, second wire harness group forwardly winds, torsional stress generates opposite moment, and they mutually offset, second tape layer inhibits the forward rotation of second wire harness group, and second wire harness group torque is transmitted to first wire harness group through second tape layer, promotes moment balance, first tape layer inhibits the reverse rotation of first wire harness, and through layered balance torque, the jump of torsion resistance performance is realized.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable technology, specifically to a wire anti-torsion support structure. Background Technology

[0002] Wires and cables are wire products used to transmit electrical energy, information, and realize the conversion of electromagnetic energy. In a broad sense, wires and cables are also simply referred to as cables. In a narrow sense, cables refer to insulated cables, which can be defined as: an assembly consisting of one or more insulated conductors, and their respective possible coverings, overall protective layers, and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] Ordinary wires and cables have poor bending resistance. When repeatedly bent, knotted, or subjected to small-radius bending, they are prone to breakage, leading to a sharp drop in strength or even direct breakage. Usually, adding a buffer cavity to the cable can improve its torsional resistance to some extent. However, due to the cavity, the cable may lack sufficient internal support and deform. Utility Model Content

[0004] The purpose of this invention is to provide a wire anti-torsion support structure to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The wire anti-torsion support structure includes an outer sheath, and the outer sheath contains, in sequence, a first wrapping layer, a first wire harness group, a first inner sheath, a second wrapping layer, a second wire harness group, a second inner sheath, and a reinforcing tube. The first wrapping layer is wound in the forward direction around the periphery of the first wire harness group, the first wire harness group is wound in the reverse direction around the periphery of the first inner sheath, the second wrapping layer is wound in the reverse direction around the periphery of the second wire harness group, the second wire harness group is wound in the forward direction around the periphery of the second inner sheath, and the reinforcing tube is located at the center of the second wire harness group.

[0006] Furthermore, the first wrapping layer is a polyester tape, and the second wrapping layer is a non-woven fabric tape.

[0007] Furthermore, the first inner protective tube has multiple first spiral grooves on its peripheral side surface, and the second inner protective tube has multiple second spiral grooves on its peripheral side surface.

[0008] Furthermore, the reinforcing tube has multiple inserts arranged in a circular array on its circumferential side surface, and the second inner protective tube has multiple slots on its inner wall, with each insert corresponding to a slot.

[0009] Furthermore, the reinforcing tube is provided with a plurality of arc-shaped blocks arranged in a circumferential array inside, and a filling layer is provided between the inner wall of each arc-shaped block and the inner wall of the reinforcing tube, and the filling layer is made of polyester fiber.

[0010] Furthermore, the outer protective tube is made of polyurethane, and multiple anti-torsion strips are arranged in a circumferential array on the circumferential side of the outer protective tube.

[0011] Compared with the prior art, the beneficial effects provided by this utility model are as follows: the first wire harness group of the anti-torsion support structure is wound in the opposite direction, and the second wire harness group is wound in the forward direction. The torsional stress generates torques in opposite directions, which cancel each other out and prevent the overall wire from rotating loosely. The second wrapping layer inhibits the forward rotation tendency of the second wire harness group and transmits the torque of the second wire harness group to the first wire harness group through the second wrapping layer, promoting torque balance. The first wrapping layer inhibits the reverse rotation tendency of the first wire harness and tightens the first wire harness group through forward twisting pressure. In repeated torsion, the structural resilience is improved and the plastic deformation is reduced, achieving a leap in anti-torsion performance. At the same time, the reinforcing tube mainly bears the tensile and supporting forces, avoiding deformation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0014] Figure 2 A front view of the overall structure provided for an embodiment of this utility model;

[0015] Figure 3 A schematic diagram of the first wire harness group and the second wire harness group provided in the embodiments of this utility model;

[0016] Figure 4 A schematic diagram of the structure of the first inner protective tube and the second inner protective tube provided in the embodiment of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Outer sheath; 2. Anti-torsion strip; 3. First wrapping layer; 4. First wire harness group; 5. First inner sheath; 6. First spiral groove; 7. Second wrapping layer; 8. Second wire harness group; 9. Second inner sheath; 10. Second spiral groove; 11. Slot; 12. Reinforcing tube; 13. Insert; 14. Arc-shaped block; 15. Filler layer. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] Please see Figure 1-4 The present invention provides a technical solution: the anti-torsion support structure for the wire includes an outer sheath 1, within which are sequentially arranged a first wrapping layer 3, a first wire harness group 4, a first inner sheath 5, a second wrapping layer 7, a second wire harness group 8, a second inner sheath 9, and a reinforcing tube 12. The first wrapping layer 3 is wound forward around the periphery of the first wire harness group 4, the first wire harness group 4 is wound backward around the periphery of the first inner sheath 5, the second wrapping layer 7 is wound backward around the periphery of the second wire harness group 8, the second wire harness group 8 is wound forward around the periphery of the second inner sheath 9, and the reinforcing tube 12 is located at the center of the second wire harness group 8. Specifically... The first wire harness group 4 is wound in the reverse direction, and the second wire harness group 8 is wound in the forward direction. The torsional stress generates torques in opposite directions, which cancel each other out and prevent the wires from rotating loosely. The second wrapping layer 7 inhibits the forward rotation tendency of the second wire harness group 8 and transmits the torque of the second wire harness group 8 to the first wire harness group 4 through the second wrapping layer 7, promoting torque balance. The first wrapping layer 3 inhibits the reverse rotation tendency of the first wire harness and tightens the first wire harness group 4 through forward twisting pressure. In repeated torsion, the structural resilience is improved and the plastic deformation is reduced, achieving a leap in torsional performance. At the same time, the reinforcing tube 12 mainly bears the tensile and supporting forces to avoid deformation.

[0020] In this embodiment, the first wrapping layer 3 is a polyester tape, and the second wrapping layer 7 is a non-woven fabric tape. Specifically, this can bind the first wire harness group 4 and the second wire harness group 8 into a tightly integrated whole, preventing them from moving relative to each other. This is a key step in improving torsional resistance and has sufficient tensile strength.

[0021] In this embodiment, a plurality of first spiral grooves 6 are provided on the peripheral side of the first inner tube 5, and a plurality of second spiral grooves 10 are provided on the peripheral side of the second inner tube 9. Specifically, the first wire harness group 4 and the second wire harness group 8 are embedded in the structure of the first spiral grooves 6 and the second spiral grooves 10 to form a physical interlock, which significantly suppresses the relative rotation of the first wire harness group 4 and the second wire harness group 8.

[0022] In this embodiment, the reinforcing tube 12 has a plurality of inserts 13 arranged in a circular array on its circumferential side surface, and a plurality of slots 11 are provided on the inner wall of the second inner protective tube 9. Each insert 13 is inserted into each slot 11 in a one-to-one correspondence. Specifically, under the action of the insertion and cooperation between the inserts 13 and the slots 11, the reinforcing tube 12 and the second inner protective tube 9 are installed flexibly and conveniently, which improves flexibility and practicality, and makes the operation simple and convenient.

[0023] In this embodiment, multiple arc-shaped blocks 14 are arranged in a circumferential array inside the reinforcing tube 12. A filling layer 15 is provided between the inner wall of each arc-shaped block 14 and the inner wall of the reinforcing tube 12. Each filling layer 15 is made of polyester fiber. Specifically, when compressed, the arc-shaped blocks 14 provide pressure relief. The polyester fiber provides good filling volume, softness and certain vibration absorption, making the originally rigid reinforcing tube 12 easier to bend or fill gaps.

[0024] In this embodiment, the outer sheath 1 is made of polyurethane, and multiple anti-torsion strips 2 are arranged in a circular array on the circumferential side of the outer sheath 1. Specifically, the anti-torsion strips 2 improve the anti-torsion effect of the wire and cable, and the structure is simple and easy to maintain.

[0025] Working principle: The first wire harness group 4 of this anti-torsion support structure is wound in the opposite direction, and the second wire harness group 8 is wound in the forward direction. The torsional stress generates torques in opposite directions, which cancel each other out and prevent the overall wire from rotating loosely. The second wrapping layer 7 inhibits the forward rotation tendency of the second wire harness group 8 and transmits the torque of the second wire harness group 8 to the first wire harness group 4 through the second wrapping layer 7, promoting torque balance. The first wrapping layer 3 inhibits the reverse rotation tendency of the first wire harness and tightens the first wire harness group 4 through forward twisting pressure. By balancing the torque through layering, the structure's resilience is improved and plastic deformation is reduced during repeated torsion, achieving a leap in anti-torsion performance. At the same time, the reinforcing tube 12 mainly bears the tensile and supporting forces, avoiding deformation of the wire and cable.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wire anti-torsion support structure, characterized in that, The device includes an outer sheath (1), which contains a first wrapping layer (3), a first wire harness group (4), a first inner sheath (5), a second wrapping layer (7), a second wire harness group (8), a second inner sheath (9), and a reinforcing tube (12). The first wrapping layer (3) is wound in the forward direction around the periphery of the first wire harness group (4), the first wire harness group (4) is wound in the reverse direction around the periphery of the first inner sheath (5), the second wrapping layer (7) is wound in the reverse direction around the periphery of the second wire harness group (8), the second wire harness group (8) is wound in the forward direction around the periphery of the second inner sheath (9), and the reinforcing tube (12) is located at the center of the second wire harness group (8).

2. The anti-torsion support structure for electrical wires according to claim 1, characterized in that, The first wrapping layer (3) is a polyester tape, and the second wrapping layer (7) is a non-woven tape.

3. The anti-torsion support structure for electrical wires according to claim 1, characterized in that, The first inner protective tube (5) has multiple first spiral grooves (6) on its circumferential side surface, and the second inner protective tube (9) has multiple second spiral grooves (10) on its circumferential side surface.

4. The anti-torsion support structure for electrical wires according to claim 1, characterized in that, The reinforcing tube (12) has a plurality of inserts (13) arranged in a circular array on its circumferential side surface, and the inner wall of the second inner protective tube (9) has a plurality of slots (11) opened thereon, and each insert (13) is inserted into each slot (11) in a one-to-one correspondence.

5. The anti-torsion support structure for electrical wires according to claim 1, characterized in that, The reinforcing tube (12) has a plurality of arc-shaped blocks (14) arranged in a circular array inside. Each arc-shaped block (14) has a filling layer (15) between its inner wall and the inner wall of the reinforcing tube (12). Each filling layer (15) is made of polyester fiber.

6. The anti-torsion support structure for electrical wires according to claim 1, characterized in that, The outer protective tube (1) is made of polyurethane, and multiple anti-torsion strips (2) are arranged in a circular array on the circumferential side of the outer protective tube (1).

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