A cable with an S-shaped protective sheath

Abstract

The present invention belongs to the field of cables, and in particular, relates to an electric cable with an S-shaped protective sheath, an outer protective layer, a central reinforcement member, and is characterized in that at least one cable core layer is provided between the outer protective layer and the central reinforcement member, and the cable core layer is composed of at least three S-shaped protective sheaths, and the S-shaped protective sheath has a first arc-shaped part and a second arc-shaped part. Each cable core layer is arranged in a clockwise direction, and the first arc-shaped part of the rear S-shaped protective sheath is inserted into the second arc-shaped part of the front S-shaped protective sheath to form a ring, and an electric unit is provided in each of the first inner cavities. The present invention has the advantages of simple structure, good protection effect on the electric unit, low cost, high production efficiency, and no destructive damage to the S-shaped protective sheath when the electric unit is stripped.

Description

Technical Field

[0001] The invention belongs to the field of cables, and in particular relates to a cable with an S-shaped protective sheath. Background Art

[0002] Cables are the blood vessels of industrial society, connecting all aspects of life and production. Once problems occur in the cables, especially the trunk lines, huge economic losses will be caused.

[0003] In the prior art, CN203659512U discloses a composite power cable with an S-shaped skeleton, including a main conductor, a control conductor and an S-shaped silicone skeleton, the outer sides of the main conductor and the control conductor are respectively coated with a silicone insulation layer, a galvanized and tinned soft copper wire plus a polyester wire braided insulation shielding layer and a non-woven fabric winding layer in sequence, the three main conductors are twisted together and then wrapped with a flame-retardant tape layer on the outside to form a main line core, the main line core is placed in the hollow spaces at the upper and lower ends of the S-shaped silicone skeleton, the control conductors are placed on the left and right sides of the S-shaped silicone skeleton, and then the outside is coated with a galvanized steel tape wrapped armor layer, an aluminum-plastic composite tape wrapped shielding layer, a silicon-aluminum alloy wire braided shielding layer and an outer sheath in sequence.

[0004] The above-mentioned prior art has the following drawbacks: 1. The cable core density is low; 2. The protection of the electrical unit is insufficient; and it is not easy to strip. Summary of the invention

[0005] To solve the above problems, the purpose of the present invention is to disclose a cable with an S-shaped protective sheath, which is achieved by adopting the following technical solutions.

[0006] A cable with an S-shaped protective sheath, comprising an outer sheath and a central reinforcement member, wherein the outer sheath is located outside the central reinforcement member, and is characterized in that at least one cable core layer is provided between the outer sheath and the central reinforcement member, wherein the cable core layer is composed of at least three S-shaped protective sheaths, wherein the S-shaped protective sheath is composed of a first arc-shaped component, a second arc-shaped component and a connecting component, wherein two ends of the connecting component are respectively connected to one end of the first arc-shaped component and one end of the second arc-shaped component to form an S shape, wherein a first inner cavity is formed in the first arc-shaped component, and a second inner cavity is formed in the second arc-shaped component, wherein the outer edge diameter of the first inner cavity is smaller than the inner edge diameter of the second inner cavity, and wherein the first arc-shaped component of each cable core layer is inserted into the second inner cavity of the previous S-shaped protective sheath in a clockwise direction to form a ring, and an electrical unit is provided in each of the first inner cavities.

[0007] The above-mentioned cable with an S-shaped protective sheath is characterized in that when it has multiple cable core layers, a spacer layer is provided between two adjacent cable core layers.

[0008] The above-mentioned cable with an S-shaped protective sheath is characterized in that the material of the spacing layer is a water-blocking tape or a polyester tape.

[0009] The above-mentioned cable with an S-shaped protective sheath is characterized in that an armor layer is provided between the outer protective layer and the S-shaped protective sheath, and the armor layer material is a steel strip or an aluminum strip.

[0010] The above-mentioned cable with an S-shaped protective sheath is characterized in that the outer sheath material is polyethylene, polyvinyl chloride or flame-retardant polyolefin.

[0011] The above-mentioned cable with an S-shaped protective sheath is characterized in that the material of the S-shaped protective sheath is polyethylene, polyvinyl chloride or flame-retardant polyolefin.

[0012] The above-mentioned cable with an S-shaped protective sheath is characterized in that the electrical unit is composed of a conductor and an insulating layer extruded outside the conductor.

[0013] Therefore, the present invention has the advantages of simple structure, good protection effect on the electric unit, low cost, high production efficiency, and no destructive damage to the S-shaped protective cover when the electric unit is peeled off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of Example 1 of the present invention.

[0015] Figure 2 This is the front view of embodiment 1 of the present invention.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of Example 2 of the present invention.

[0017] Figure 4 This is the front view of embodiment 2 of the present invention.

[0018] Figure 5 It is a front view of the S-shaped protective cover of Example 1 and Example 2 of the present invention.

[0019] In the figure: 1. outer protective layer, 2. armor layer, 3. S-shaped protective sleeve, 31. first arc-shaped component, 32. first inner cavity, 33. connecting component, 34. second arc-shaped component, 35. second inner cavity, 4. electrical unit, 5. central reinforcement, 6. spacer layer. DETAILED DESCRIPTION

[0020] Example 1

[0021] Please see Figure 1 , Figure 2 and Figure 5, a cable with an S-shaped protective sheath, comprising an outer sheath 1 and a central reinforcement member 5, wherein the outer sheath 1 is located outside the central reinforcement member 5, and is characterized in that nine S-shaped protective sheaths 3 are further arranged between the outer sheath 1 and the central reinforcement member 5, wherein the S-shaped protective sheath 3 is composed of a first arc-shaped component 31, a second arc-shaped component 34 and a connecting component 33, wherein the two ends of the connecting component 33 are respectively connected to one end of the first arc-shaped component 31 and one end of the second arc-shaped component 34 to form an S shape, wherein a first inner cavity 32 is formed in the first arc-shaped component 31, and a second inner cavity 35 is formed in the second arc-shaped component 34, wherein the outer edge diameter of the first inner cavity 32 is smaller than the inner edge diameter of the second inner cavity 35, and in a clockwise direction, the first arc-shaped component 31 of the rear S-shaped protective sheath 3 is inserted into the second inner cavity 35 of the front S-shaped protective sheath 3 to form a ring, wherein each of the first inner cavities 32 is provided with an electrical unit 4, and the central reinforcement member 5 is located in the ring formed by the S-shaped protective sheaths 3.

[0022] Example 2

[0023] Please see Figure 3 , Figure 4 and Figure 5 A cable with an S-shaped protective sheath, comprising an outer sheath 1 and a central reinforcement member 5, wherein the outer sheath 1 is located outside the central reinforcement member 5, and wherein two cable core layers are provided between the outer sheath 1 and the central reinforcement member 5, wherein the cable core layer located on the outer side is composed of nine S-shaped protective sheaths 3, and the cable core layer located on the inner side is composed of three S-shaped protective sheaths 3, wherein the S-shaped protective sheath 3 is composed of a first arc-shaped component 31, a second arc-shaped component 34 and a connecting component 33, wherein the two ends of the connecting component 33 are respectively connected to the first arc-shaped component 31 and the second arc-shaped component 34. One end is formed into an S shape, a first inner cavity 32 is formed in the first arc-shaped part 31, and a second inner cavity 35 is formed in the second arc-shaped part 34. The outer edge diameter of the first inner cavity 32 is smaller than the inner edge diameter of the second inner cavity 35. Each layer of the cable core layer is arranged in a clockwise direction. The first arc-shaped part 31 of the rear S-shaped protective cover 3 is inserted into the second inner cavity 35 of the front S-shaped protective cover 3 to form a ring. An electrical unit 4 is arranged in each of the first inner cavities 32, and the central reinforcement member 5 is located in the ring formed by the S-shaped protective cover 3.

[0024] The above-mentioned cable with an S-shaped protective sheath is characterized in that a spacer layer 6 is provided between the outer cable core layer and the inner cable core layer, and the material of the spacer layer 6 is a water-blocking tape or a polyester tape.

[0025] A cable with an S-shaped protective sheath as described in any of the above embodiments is characterized in that an armor layer 2 is provided between the outer protective layer 1 and the S-shaped protective sheath 3, and the material of the armor layer 2 is steel strip or aluminum strip.

[0026] The cable with an S-shaped protective sheath described in any of the above embodiments is characterized in that the material of the outer sheath 1 is polyethylene, polyvinyl chloride or flame-retardant polyolefin.

[0027] The cable with an S-shaped protective sheath as described in any of the above embodiments is characterized in that the material of the S-shaped protective sheath 3 is polyethylene, polyvinyl chloride or flame-retardant polyolefin.

[0028] The cable with an S-shaped protective sheath as described in any of the above embodiments is characterized in that the electrical unit 4 is composed of a conductor and an insulating layer extruded outside the conductor.

[0029] In the present application, by nesting two adjacent S-shaped protective covers 3, it is equivalent to adding two protective covers on the outside of the electrical unit, which has a better protection effect on the electrical unit; and all the S-shaped protective covers 3 are formed into a whole, and there is no need to use materials such as yarn to fix them when the cables are cabled, which saves materials and improves production efficiency; the connection between the S-shaped protective covers 3 is not a fixed connection, and the electrical unit inside can be easily taken out without causing destructive damage to the S-shaped protective cover 3; when the electrical unit needs to be put back, it can be restored to its original state.

[0030] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A cable with an S-shaped protective sheath, comprising an outer sheath (1) and a central reinforcement member (5), wherein the outer sheath (1) is located outside the central reinforcement member (5), characterized in that At least one cable core layer is provided between the outer sheath (1) and the central reinforcement member (5), the cable core layer being composed of at least three S-shaped protective sleeves (3), the S-shaped protective sleeve (3) being composed of a first arc-shaped component (31), a second arc-shaped component (34) and a connecting component (33), the two ends of the connecting component (33) respectively connecting one end of the first arc-shaped component (31) and one end of the second arc-shaped component (34) to form an S shape, a first inner cavity (32) being formed in the first arc-shaped component (31), and a first inner cavity (32) being formed in the second arc-shaped component (34) forms a second inner cavity (35), the outer edge diameter of the first inner cavity (32) is smaller than the inner edge diameter of the second inner cavity (35), and each cable core layer is arranged in a clockwise direction, with the first arc-shaped component (31) of the rear S-shaped protective sleeve (3) being inserted into the second inner cavity (35) of the front S-shaped protective sleeve (3) to form a ring shape, and each of the first inner cavities (32) is provided with an electrical unit (4), and when there are multiple cable core layers, a spacer layer (6) is provided between two adjacent cable core layers.

2. A cable with an S-shaped protective sheath according to claim 1, characterized in that The material of the spacer layer (6) is a water-blocking tape or a polyester tape.

3. A cable with an S-shaped protective sheath according to claim 2, characterized in that An armor layer (2) is also provided between the outer protective layer (1) and the S-shaped protective sleeve (3).

4. A cable with an S-shaped protective sheath according to claim 3, characterized in that The armor layer (2) is made of steel strip or aluminum strip.

5. The cable with an S-shaped protective sheath according to claim 4, characterized in that The material of the outer protective layer (1) is polyethylene, polyvinyl chloride or flame-retardant polyolefin.

6. The cable with an S-shaped protective sheath according to claim 5, characterized in that The material of the S-shaped protective sleeve (3) is polyethylene, polyvinyl chloride or flame-retardant polyolefin.

7. The cable with an S-shaped protective sheath according to claim 6, characterized in that The electrical unit (4) is composed of a conductor and an insulating layer extruded outside the conductor.

Images