Shielding control cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a shielding control cable, which comprises copper wires, a high-temperature-resistant layer is wrapped outside an insulating filler, and a wear-resistant layer is wrapped on the outer wall of the high-temperature-resistant layer. Inwards-concave pipe bodies are integrally arranged on the inner wall of the wear-resisting layer in an annular array mode, inner supporting bodies are integrally arranged on the inner wall of the wear-resisting layer and located on the two sides of each inwards-concave pipe body, and first connecting strips are fixedly connected to the inner walls of the inwards-concave pipe bodies in an array mode; outer protrusions are integrally arranged on the outer wall of the high-temperature-resistant layer in an annular array mode, arc-shaped strip bodies are integrally arranged on the portions, located on the two sides of each outer protrusion, of the outer wall of the high-temperature-resistant layer, and second connecting strips are connected between the arc-shaped strip bodies and the inner concave pipe bodies adjacent to the arc-shaped strip bodies in an array mode. According to the utility model, the anti-interference capability is excellent, the influence of external pressure on the internal cable core can be greatly reduced, and the stability of the cable structure can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and in particular relates to a shielded control cable. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, usually composed of several or several groups of wires, usually a rope-like cable formed by twisting several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center wire. The entire outside is covered with a highly insulating covering; the cable has the characteristics of being powered inside and insulated outside.

[0003] Problems with existing technologies:

[0004] In order to be suitable for corresponding usage environments, existing cables are given corresponding capabilities during design and production, such as anti-extrusion, anti-interference, and high temperature resistance. In most cable usage scenarios, anti-extrusion capability is particularly important and very common. When the cable cannot withstand the pressure given by the outside world, the shielding layer and cable core inside the cable will be directly damaged, which will directly affect the performance of the cable. Utility Model Content

[0005] The utility model aims to provide a shielded control cable, which has excellent anti-interference ability, can greatly reduce the influence of external pressure on the internal cable core, and can ensure the stability of the cable structure.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A shielded control cable, comprising copper wires, a plurality of the copper wires are arranged in a ring array, and the outer wrapping of all the copper wires is provided with an insulating filler, the outer wrapping of the insulating filler is provided with a high temperature resistant layer, and the outer wall of the high temperature resistant layer is provided with a wear-resistant layer;

[0008] The inner wall of the wear-resistant layer is provided with an inner concave tube body in an annular array, the inner wall of the wear-resistant layer and both sides of each inner concave tube body are provided with inner support bodies, the inner wall of the inner concave tube body is fixedly connected with a connecting strip 1 in an array, and the inner side of the inner concave tube body is provided with a groove;

[0009] The outer wall of the high temperature resistant layer is integrally provided with external protrusions in a ring array, and the outer wall of the high temperature resistant layer and both sides of each external protrusion are integrally provided with arc-shaped strips, the external protrusions are embedded in the grooves inside the corresponding concave tube bodies, and the arc-shaped strips and the adjacent concave tube bodies are connected in an array with connecting strips 2.

[0010] The outer wall of the copper wire is wrapped with a PE sheath, the outer wall of the insulating filling is wrapped with a wrapping tape layer, and the outer wall of the wrapping tape layer is wrapped with an inner shielding layer.

[0011] The inner shielding layer is simultaneously adhered to the inner wall of the high temperature resistant layer, the outer wall of the wear resistant layer is wrapped with an outer shielding layer, and the outer wall of the outer shielding layer is wrapped with an outer PE layer.

[0012] The outer protrusions and the copper wires located on the outermost layer are arranged alternately

[0013] The technical effects achieved by the utility model are:

[0014] (1) In the present invention, the design of the outer shielding layer and the inner shielding layer provides the cable with a double shielding protection layer, thereby improving the anti-interference capability of the cable.

[0015] (2) In the utility model, the arched outer protrusion can disperse the external pressure, and the deformed inner concave tube body and the arc-shaped strip body can also absorb a certain amount of pressure. In addition, the laterally deformed arc-shaped strip body can change the direction of the pressure. Finally, the elastically stretched connecting strip 1 and the connecting strip 2 can also absorb a certain amount of external force and at the same time assist the inner concave tube body and the arc-shaped strip body to recover, thereby reducing the influence of the external pressure on the internal cable core.

[0016] (3) In the present invention, the structure in which the outer protrusion and the inner concave tube body are embedded can avoid relative slippage between the wear-resistant layer and the high-temperature resistant layer, thereby ensuring the stability of the cable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional structural diagram of a cable provided by an embodiment of the utility model;

[0018] Figure 2 is a cross-sectional plan view of a cable provided by an embodiment of the utility model;

[0019] Figure 3 yes Figure 2 A local enlarged structural diagram of point A in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Outer PE layer; 2. Outer shielding layer; 3. Wear-resistant layer; 301. Inner concave tube body; 302. Connecting strip 1; 303. Inner support body; 4. High temperature resistant layer; 401. Outer protrusion; 402. Arc-shaped strip body; 403. Connecting strip 2; 5. Inner shielding layer; 6. Wrapping tape layer; 7. Insulation filling; 8. Copper wire; 9. PE sheath. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0023] like Figure 1-3 As shown, a shielded control cable includes copper wires 8, several copper wires 8 are gathered in a ring array, and the outside of all copper wires 8 is wrapped with an insulating filling 7, the outside of the insulating filling 7 is wrapped with a high temperature resistant layer 4, and the outer wall of the high temperature resistant layer 4 is wrapped with a wear-resistant layer 3; the outer walls of the copper wires 8 are all wrapped with a PE sheath 9, the outer wall of the insulating filling 7 is wrapped with a wrapping tape layer 6, the outer wall of the wrapping tape layer 6 is wrapped with an inner shielding layer 5, and the inner shielding layer 5 is also adhered to the inner wall of the high temperature resistant layer 4, the outer wall of the wear-resistant layer 3 is wrapped with an outer shielding layer 2, and the outer wall of the outer shielding layer 2 is wrapped with an outer PE layer 1.

[0024] See attached Figure 2 and Figure 3 The inner wall of the wear-resistant layer 3 is provided with an inner concave tube body 301 in an annular array, and the inner wall of the wear-resistant layer 3 and the inner support bodies 303 are provided on both sides of each inner concave tube body 301 in an integrated manner. The inner wall of the inner concave tube body 301 is fixedly connected with a connecting strip 302 in an array, and the inner side of the inner concave tube body 301 is provided with a groove;

[0025] See attached Figure 2 and Figure 3 The outer wall of the high temperature resistant layer 4 is integrally provided with external protrusions 401 in a circular array, and the outer wall of the high temperature resistant layer 4 and both sides of each external protrusion 401 are integrally provided with arc strips 402, the external protrusions 401 are embedded in the grooves on the inner side of the corresponding concave tube body 301, and the arc strips 402 and the adjacent concave tube bodies 301 are connected in an array with connecting strips 403; the external protrusions 401 and the copper wires 8 located in the outermost layer are arranged alternately.

[0026] According to the above structure, the design of the outer shielding layer 2 and the inner shielding layer 5 gives the cable a double shielding protection layer, thereby improving the anti-interference ability of the cable;

[0027] Furthermore, when the cable is squeezed, due to the space gap between the wear-resistant layer 3 and the high-temperature resistant layer 4, a relatively obvious squeeze contact will occur between the two to absorb the squeeze force from the outside, wherein the inner concave tube body 301 will be squeezed with the outer protrusion 401, and the inner concave tube body 301 will be compressed and deformed. According to the shape change of the inner concave tube body 301 after compression, the corresponding connecting strip 302 inside it will be elastically stretched. At the same time, the inner support body 303 will also squeeze the arc strip body 402 at the same time, and the arc strip body 402 will bend toward the center of the circle. The corresponding connecting strip 1 403 will also be elastically stretched at the same time. In the above process, the arched outer protrusion 401 can disperse the external pressure, and the deformed inner concave tube 301 and the arc strip 402 can also absorb a certain amount of pressure. In addition, the lateral deformation of the arc strip 402 can change the direction of the pressure. Finally, the elastically stretched connecting strip 1 302 and the connecting strip 2 403 can also absorb a certain amount of external force and assist the inner concave tube 301 and the arc strip 402 to recover, thereby reducing the influence of external pressure on the internal cable core.

[0028] Furthermore, the structure in which the outer protrusion 401 and the inner concave tube body 301 are embedded can avoid relative slippage between the wear-resistant layer 3 and the high-temperature resistant layer 4, thereby ensuring the stability of the cable structure.

[0029] The working principle of the utility model is as follows: the design of the outer shielding layer 2 and the inner shielding layer 5 gives the cable a double-layer shielding protection layer. In addition, when the cable is squeezed, due to the space gap between the wear-resistant layer 3 and the high-temperature resistant layer 4, a relatively obvious extrusion contact will occur between the two to absorb the extrusion force from the outside, wherein the inner concave tube body 301 will be squeezed with the outer protrusion 401, and the inner concave tube body 301 will be compressed and deformed. According to the shape change of the inner concave tube body 301 after compression, the corresponding connecting strip 1 302 inside it will be elastically stretched. At the same time, the inner support body 303 will also squeeze the arc strip body 402 at the same time, and the arc strip body 402 will bend and deform toward the center of the circle. At this time, the corresponding connecting strip 2 403 will also be elastically stretched at the same time, so as to reduce the influence of external pressure on the internal cable core.

[0030] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A shielded control cable, comprising a copper wire (8), characterized in that: A plurality of the copper wires (8) are arranged in a ring array, and the outside of all the copper wires (8) is wrapped with an insulating filler (7), the outside of the insulating filler (7) is wrapped with a high temperature resistant layer (4), and the outer wall of the high temperature resistant layer (4) is wrapped with a wear-resistant layer (3); The inner wall of the wear-resistant layer (3) is provided with inner concave tube bodies (301) in an annular array, the inner wall of the wear-resistant layer (3) and both sides of each inner concave tube body (301) are provided with inner support bodies (303) in an integrated manner, the inner wall of the inner concave tube body (301) is fixedly connected with a connecting strip (302) in an array, and the inner side of the inner concave tube body (301) is provided with a groove; The outer wall of the high temperature resistant layer (4) is integrally provided with external protrusions (401) in a circular array, and the outer wall of the high temperature resistant layer (4) and both sides of each external protrusion (401) are integrally provided with arc-shaped strips (402), and the external protrusions (401) are all embedded in the grooves on the inner side of the corresponding concave tube body (301), and the arc-shaped strips (402) and the adjacent concave tube bodies (301) are connected in an array by connecting strips 2 (403).

2. A shielded control cable according to claim 1, characterized in that: The outer wall of the copper wire (8) is wrapped with a PE sheath (9), the outer wall of the insulating filler (7) is wrapped with a wrapping tape layer (6), and the outer wall of the wrapping tape layer (6) is wrapped with an inner shielding layer (5).

3. A shielded control cable according to claim 2, characterized in that: The inner shielding layer (5) is simultaneously adhered to the inner wall of the high temperature resistant layer (4), the outer wall of the wear resistant layer (3) is wrapped with the outer shielding layer (2), and the outer wall of the outer shielding layer (2) is wrapped with the outer PE layer (1).

4. A shielded control cable according to claim 1, characterized in that: The outer protrusions (401) and the copper wires (8) located in the outermost layer are arranged alternately.

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