A bending and expansion resistant cable

Abstract

The present application relates to the technical field of cables, and provides a bending and expansion resistant cable, comprising a braided sheath, an inner sheath fixedly arranged inside the braided sheath, a braided layer fixedly arranged inside the inner sheath, a non-woven cotton cloth fixedly arranged inside the braided layer, a plurality of conductors fixedly arranged inside the non-woven cotton cloth, each of the conductors being wrapped with a mica tape and an insulating layer in sequence on the outside, a filling layer being filled between the conductor and the non-woven cotton cloth, and a tensile rope being arranged in the middle of the non-woven cotton cloth. The beneficial effects of the present utility model are as follows: the bending resistance of the cable is improved by using the braided sheath and the braided layer, and the tensile and expansion resistance of the cable are improved by using the non-woven cotton cloth and the tensile rope, so that the cable has the functions of bending resistance and expansion resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and particularly relates to a bending-resistant and expansion-resistant cable. Background Art

[0002] Cables are composed of single or multiple conductors and insulation layers and are used to connect circuits and electrical appliances. In some production scenarios, cables are required to be resistant to bending and expansion.

[0003] Existing bending and expansion-resistant cables improve the bending resistance of the cables by setting an armor layer on the inside of the cables or increasing the thickness of the sheath. However, the armor layer is not convenient to install, and the cable sheath is prone to breakage during the bending process, thus affecting normal use and posing certain safety hazards. Utility Model Content

[0004] In view of this, the utility model provides a bending and expansion resistant cable, which adopts a braided sheath and a braided layer to improve the bending resistance of the cable, and improves the tensile and expansion resistance of the cable through non-woven cotton cloth and anti-tension rope, so that the cable has the functions of bending resistance and expansion resistance.

[0005] The technical solution is as follows: A bending and expansion resistant cable, comprising a braided sheath, characterized in that an inner sheath is fixedly arranged inside the braided sheath, a braided layer is fixedly arranged inside the inner sheath, a non-woven cotton cloth is fixedly arranged inside the braided layer, a plurality of conductors are fixedly arranged inside the non-woven cotton cloth, the outer side of each conductor is wrapped with a mica tape and an insulating layer in sequence, a filling layer is filled between the conductor and the non-woven cotton cloth, and a tensile rope is arranged in the middle of the non-woven cotton cloth.

[0006] During use, the above technical solution: uses a braided sheath and a braided layer to improve the bending resistance of the cable, and uses non-woven cotton cloth and anti-tension rope to improve the tensile and expansion resistance of the cable, so that the cable has the functions of bending resistance and expansion resistance;

[0007] Preferably, the braided sheath is composited with a braided rope and a flame retardant layer.

[0008] Preferably, the braided rope is braided from a plurality of non-woven ropes.

[0009] Preferably, the flame retardant layer is a modified polyvinyl chloride sheath.

[0010] The above technical solution: by weaving a plurality of non-woven ropes with the flame retardant layer together, the bending resistance of the cable is improved, and the flame retardant function is also provided;

[0011] Preferably, the braided layer is woven from galvanized steel wires, and the galvanized copper wires are woven together to improve the bending resistance of the cable and have anti-expansion performance;

[0012] Preferably, the insulating layer is made of butyl polyvinyl chloride, and the softness of butyl polyvinyl chloride further improves the bending resistance of the conductor, improves the bending resistance of the entire cable, and prevents the conductor from breaking during the bending process.

[0013] Preferably, the inner sheath is made of cross-linked polyolefin or one of polyolefins.

[0014] Preferably, the conductor is a tinned copper wire conductor.

[0015] Preferably, a flame retardant core is provided between the two conductors.

[0016] Preferably, the flame retardant core is made of polyvinyl chloride;

[0017] The above technical solution: the flame retardant performance of the cable is improved by the flame retardant core. When a fire occurs, the flame retardant core melts to achieve a flame retardant effect and protect multiple conductors;

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] 1. The braided sheath and braided layer are used to improve the bending resistance of the cable, and the non-woven cotton cloth and anti-tension rope are used to improve the tensile and expansion resistance of the cable, so that the cable has the functions of bending resistance and expansion resistance;

[0020] 2. By weaving multiple non-woven ropes with the flame retardant layer together, the bending resistance of the cable is improved, and it also has a flame retardant function;

[0021] 3. The softness of butyl polyvinyl chloride can further improve the bending resistance of the conductor and the bending resistance of the cable as a whole, thus preventing the conductor from breaking during the bending process;

[0022] 4. The flame retardant performance of the cable is improved by the flame retardant core. When a fire occurs, the flame retardant core melts to achieve a flame retardant effect and protect multiple conductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] In the figure, 1, braided sheath; 2, inner sheath; 3, braided layer; 4, non-woven cotton fabric; 5, insulating layer; 6, mica tape; 7, conductor; 8, flame retardant core; 11, tensile rope; 12, filling layer; DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0028] like Figure 1 to Figure 2 As shown, a bending and expansion resistant cable comprises a braided sheath, wherein an inner sheath 2 is fixedly arranged in the braided sheath 1, a braided layer 3 is fixedly arranged in the inner sheath 2, a non-woven cotton cloth 4 is fixedly arranged in the braided layer 3, a plurality of conductors 7 are fixedly arranged in the non-woven cotton cloth 4, each conductor 7 is wrapped with a mica tape 6 and an insulating layer 5 in sequence on the outside, a filling layer 12 is filled between the conductor 7 and the non-woven cotton cloth 4, a tensile rope 11 is arranged in the middle of the non-woven cotton cloth 4, the braided sheath 1 and the braided layer 3 are used to improve the bending resistance of the cable, and the tensile and expansion resistance of the cable are improved by the non-woven cotton cloth and the tensile rope 11, so that the cable has the functions of bending resistance and expansion resistance;

[0029] The braided sheath 1 is composited with a braided rope and a flame retardant layer.

[0030] The braided rope is braided from a plurality of non-woven ropes.

[0031] The flame retardant layer is a modified polyvinyl chloride sheath.

[0032] By weaving multiple non-woven ropes with the flame retardant layer together, the bending resistance of the cable is improved, and the flame retardant function is also achieved;

[0033] The braided layer 3 is braided with galvanized steel wires, and the galvanized copper wires are braided together to improve the bending resistance of the cable and have anti-expansion performance;

[0034] The insulating layer 5 is made of butyl polyvinyl chloride, and the softness of butyl polyvinyl chloride further improves the bending resistance of the conductor 7, improves the bending resistance of the entire cable, and prevents the conductor 7 from breaking during the bending process.

[0035] The inner sheath 2 is made of cross-linked polyolefin or one of polyolefins.

[0036] The conductor 7 is a tinned copper wire conductor 7 .

[0037] A flame retardant core 8 is provided between the two conductors 7. The flame retardant core 8 is made of polyvinyl chloride, and the flame retardant performance of the cable is improved by the flame retardant core 8. When a fire occurs, the flame retardant core 8 melts to achieve a flame retardant effect, thereby protecting the multiple conductors 7;

[0038] How it works

[0039] The braided sheath 1 and the braided layer 3 are used to improve the bending resistance of the cable, and the non-woven cotton cloth and the anti-tension rope 11 are used to improve the tensile and expansion resistance of the cable, so that the cable has the functions of bending resistance and expansion resistance. A plurality of non-woven ropes are woven together with the flame retardant layer to improve the bending resistance of the cable, and at the same time have the flame retardant function. The softness of butyl polyvinyl chloride is used to further improve the bending resistance of the conductor 7, and the bending resistance of the entire cable is improved to prevent the conductor 7 from breaking during the bending process. The flame retardant core 8 improves the flame retardant performance of the cable. When a fire occurs, the flame retardant core 8 melts to achieve a flame retardant effect, thereby protecting the plurality of conductors 7.

[0040] The above shows and describes the basic principles 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 to the above embodiments. The above embodiments and descriptions are only for explaining the principles 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 shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A bending and expansion resistant cable, comprising a braided sheath (1), characterized in that: An inner sheath (2) is fixedly arranged inside the braided sheath (1), a braided layer (3) is fixedly arranged inside the inner sheath (2), a non-woven cotton cloth (4) is fixedly arranged inside the braided layer (3), a plurality of conductors (7) are fixedly arranged inside the non-woven cotton cloth (4), the outer side of each conductor (7) is sequentially wrapped with a mica tape (6) and an insulating layer (5), a filling layer (12) is filled between the conductor (7) and the non-woven cotton cloth (4), and a tensile rope (11) is arranged in the middle of the non-woven cotton cloth (4).

2. The bending and expansion resistant cable according to claim 1, characterized in that: The braided sheath (1) is composited with a braided rope and a flame retardant layer.

3. The bending and expansion resistant cable according to claim 2, characterized in that: The braided rope is braided from a plurality of non-woven ropes.

4. The bending and expansion resistant cable according to claim 3, characterized in that: The flame retardant layer is a modified polyvinyl chloride sheath.

5. The bending and expansion resistant cable according to claim 4, characterized in that: The braided layer (3) is braided from galvanized steel wires.

6. The bending and expansion resistant cable according to claim 1, characterized in that: The insulating layer (5) is made of butyl polyvinyl chloride.

7. The bending and expansion resistant cable according to claim 6, characterized in that: The inner sheath (2) is made of cross-linked polyolefin or one of the polyolefins.

8. A bending and expansion resistant cable according to claim 1 or 7, characterized in that: The conductor (7) is a tinned copper wire conductor (7).

9. The bending and expansion resistant cable according to claim 1, characterized in that: A flame retardant core (8) is arranged between the two conductors (7).

10. The bending and expansion resistant cable according to claim 9, characterized in that: The flame retardant core (8) is made of polyvinyl chloride.

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