Efficient shielding multi-core control cable

Abstract

The utility model discloses an efficient shielding multi-core control cable which sequentially comprises an outer sheath, an armor layer, an inner protection layer, an outer wrapping layer, an outer shielding layer and an inner wrapping layer from outside to inside, and a first cable core, a plurality of second cable cores, a plurality of third cable cores and a plurality of filling ropes are arranged in the inner wrapping layer. The control cable is provided with the second protection layer and the third protection layer, the cable core in the cable is effectively protected through a multi-layer protection structure, and the service life of the cable is prolonged. And the second cable core and the third cable core form a surrounding structure, so that the overall structure of the cable is more compact, and the mechanical performance of the cable is greatly improved. In addition, the overall shielding effect of the cable is good, the first cable core has a better shielding effect, and the use effect is good in occasions with high shielding requirements.

Description

Technical Field

[0001] The utility model relates to the field of cables, and more specifically, to an efficient shielding multi-core control cable. Background Art

[0002] A control cable is a cable specifically used for transmitting functions such as control and measurement signals. The application scope of control cables is extremely wide, covering multiple fields such as electric power, transportation, water conservancy, construction, aviation, and communication. It can transmit various electrical signals, ensure the safety of the system, and make it operate reliably.

[0003] The existing control cables only adopt a single-layer sheath and lack sufficient inner layers, making the cables vulnerable to damage when subjected to tensile force, pressure, or bending, and unable to effectively protect the internal structure of the cables. Especially in complex environments, they are prone to mechanical damage. Some control cables lack sufficient shielding effect, resulting in being easily interfered in application scenarios with complex electromagnetic environments, affecting the signal transmission quality. In addition, the core layout of some control cables is not compact enough, resulting in relatively low overall mechanical strength of the cables, and being prone to deformation or damage under external forces during transportation, installation, and use. Summary of the Utility Model

[0004] The utility model aims to overcome the defects of the prior art and provide an efficient shielding multi-core control cable.

[0005] To achieve the above object, the utility model provides the following technical solution: A control cable, which sequentially includes an outer sheath, an armor layer, an inner sheath, an outer wrapping layer, an outer shielding layer, and an inner wrapping layer from outside to inside. Inside the inner wrapping layer, there are arranged a first core, a plurality of second cores, a plurality of third cores, and a plurality of filling ropes. The first core includes an inner shielding layer and a first sheath located inside the inner shielding layer. Inside the first sheath, there are a plurality of wire cores. Each wire core includes a first conductor and a first insulating layer covering the first conductor. Outside the first sheath, there is a second sheath arranged, and outside the second sheath, there is a third sheath arranged. The second cores are located between the second sheath and the third sheath. The second sheath has a plurality of first receiving grooves cooperating with the second cores. The third sheath has a plurality of second receiving grooves cooperating with the second cores. The number of the first receiving grooves is equal to that of the second receiving grooves and they correspond to each other one by one. There is one of the second cores between the first receiving groove and the corresponding second receiving groove. The plurality of second cores surround the second sheath. Each second core includes a second conductor and a second insulating layer covering the second conductor. The plurality of third cores surround the third sheath. The third sheath has a plurality of third receiving grooves cooperating with the third cores. Each third core includes a third conductor and a third insulating layer covering the third conductor.

[0006] Further, the plurality of second cores are distributed in an annular shape at equal intervals.

[0007] Furthermore, multiple third cable cores are distributed at equal intervals in a ring shape.

[0008] The second cable core and the third cable core form an enclosing structure, so that the overall structure of the cable is compact and the mechanical properties are good.

[0009] Furthermore, there are sixteen second cable cores and sixteen third cable cores.

[0010] Thus, the performance requirements of the cable in various application scenarios are met.

[0011] Furthermore, both the inner shielding layer and the outer shielding layer are copper wire braided shielding layers.

[0012] Thus, a good shielding effect is provided for the cable.

[0013] Furthermore, the armor layer is a steel tape armor layer.

[0014] Thus, the mechanical properties of the cable are enhanced.

[0015] Furthermore, the outer sheath is made of polyethylene material.

[0016] Thus, the cable is protected and its service life is extended.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The control cable of the present application has a second protective layer and a third protective layer, and effectively protects the cable cores inside the cable through a multi-layer protection structure, extending the service life of the cable.

[0019] 2. In the control cable of the present application, the second cable core and the third cable core form an enclosing structure, so that the overall structure of the cable is more compact, greatly improving the mechanical properties of the cable.

[0020] 3. The control cable of the present application has a good overall shielding effect, and the first cable core has a better shielding effect, and it has a good use effect in occasions with high shielding requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a control cable;

[0022] Figure 2 It is an enlarged view of area A;

[0023] Figure 3 It is a cross-sectional view of a control cable.

[0024] Description of the drawing reference numerals: outer sheath 1; armor layer 2; inner sheath 3; outer wrapping layer 4; outer shielding layer 5; inner wrapping layer 6; first cable core 7; first conductor 7.1; first insulating layer 7.2; first sheath 7.3; inner shielding layer 7.4; second sheath 8; first receiving groove 8.1; third sheath 9; third receiving groove 9.1; second cable core 10; second conductor 10.1; second insulating layer 10.2; third cable core 11; third conductor 11.1; third insulating layer 11.2; filling cord 12. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a highly efficient shielded multi-core control cable as Figures 1-3 shown, which sequentially includes an outer sheath 1, an armor layer 2, an inner sheath 3, an outer wrapping layer 4, an outer shielding layer 5, and an inner wrapping layer 6 from outside to inside. A first cable core 7, a plurality of second cable cores 10, a plurality of third cable cores 11, and a plurality of filling cords 12 are arranged inside the inner wrapping layer 6. The first cable core 7 includes an inner shielding layer 7.4 and a first sheath 7.3 located inside the inner shielding layer 7.4. A plurality of cores are provided inside the first sheath 7.3. The core includes a first conductor 7.1 and a first insulating layer 7.2 covering the first conductor 7.1. A second sheath 8 is provided outside the first sheath 7.3, and a third sheath 9 is provided outside the second sheath 8. The second cable core 10 is located between the second sheath 8 and the third sheath 9. The second sheath 8 has a plurality of first receiving grooves 8.1 that cooperate with the second cable core 10. The third sheath 9 has a plurality of second receiving grooves that cooperate with the second cable core 10. The number of the first receiving grooves 8.1 is equal to and corresponds one by one to that of the second receiving grooves. A second cable core 10 is provided between the first receiving groove 8.1 and the corresponding second receiving groove. A plurality of second cable cores 10 surround the second sheath 8. The second cable core 10 includes a second conductor 10.1 and a second insulating layer 10.2 covering the second conductor 10.1. A plurality of third cable cores 11 surround the third sheath 9. The third sheath 9 has a plurality of third receiving grooves 9.1 that cooperate with the third cable core 11. The third cable core 11 includes a third conductor 11.1 and a third insulating layer 11.2 covering the third conductor 11.1.

[0027] A plurality of second cable cores 10 are distributed at equal intervals in a ring shape. A plurality of third cable cores 11 are distributed at equal intervals in a ring shape. There are sixteen second cable cores 10 and sixteen third cable cores 11. The inner shielding layer 7.4 and the outer shielding layer 5 are both copper wire braided shielding layers. The armor layer 2 is a steel strip armor layer. The outer sheath 1 is made of polyethylene material.

[0028] Working principle: The control cable of the present application has a second sheath and a third sheath, and effectively protects the cable cores inside the cable through a multi-layer protection structure, extending the service life of the cable. Moreover, the second cable core and the third cable core are in a surrounding structure, so that the overall structure of the cable is more compact, greatly improving the mechanical properties of the cable. In addition, the overall shielding effect of the cable is good, and the first cable core has a better shielding effect, and it has a good use effect in occasions with high shielding requirements.

[0029] During specific manufacturing, first, a second sheath is prepared outside the first cable core, then the second cable core is installed in the first receiving groove of the second sheath, then the third sheath is manufactured so that the second cable core is stably fixed between the second sheath and the third sheath, then the third cable core is installed in the third receiving groove of the third sheath, then an inner wrapping layer is prepared to wrap the plurality of cable cores, and the filling rope is filled between the third cable core and the inner wrapping layer to fill the gap and maintain the roundness of the cable. Then, an outer shielding layer is prepared outside the inner wrapping layer, an outer wrapping layer is prepared outside the outer shielding layer, an inner sheath is prepared outside the outer wrapping layer, an armor layer is prepared outside the inner sheath, and an outer sheath is prepared outside the armor layer.

[0030] Although the present utility model has been illustrated and described with respect to the preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present utility model as long as they do not exceed the scope defined by the claims of the present utility model.

Claims

1. An efficient shielding multi-core control cable, characterized in that From outside to inside, it successively includes an outer sheath, an armor layer, an inner sheath, an outer wrapping layer, an outer shielding layer, and an inner wrapping layer. Inside the inner wrapping layer, there are arranged a first cable core, a plurality of second cable cores, a plurality of third cable cores, and a plurality of filling ropes. The first cable core includes an inner shielding layer and a first sheath located inside the inner shielding layer. Inside the first sheath, there are a plurality of cores. Each core includes a first conductor and a first insulating layer covering the first conductor. Outside the first sheath, there is a second sheath, and outside the second sheath, there is a third sheath. The second cable cores are located between the second sheath and the third sheath. The second sheath has a plurality of first receiving grooves for cooperating with the second cable cores. The third sheath has a plurality of second receiving grooves for cooperating with the second cable cores. The number of the first receiving grooves is equal to that of the second receiving grooves and they are in one-to-one correspondence. There is one of the second cable cores between a first receiving groove and the corresponding second receiving groove. The plurality of second cable cores surround the second sheath. The second cable core includes a second conductor and a second insulating layer covering the second conductor. The plurality of third cable cores surround the third sheath. The third sheath has a plurality of third receiving grooves for cooperating with the third cable cores. The third cable core includes a third conductor and a third insulating layer covering the third conductor.

2. The high-efficiency shielding multi-core control cable according to claim 1, characterized in that, The plurality of second cable cores are distributed at equal intervals in a ring shape.

3. The high-efficiency shielding multi-core control cable according to claim 1, characterized in that, The plurality of third cable cores are distributed at equal intervals in a ring shape.

4. The high-efficiency shielding multi-core control cable according to claim 1, characterized in that, There are sixteen second cable cores and sixteen third cable cores.

5. The high-efficiency shielding multi-core control cable according to claim 1, characterized in that, Both the inner shielding layer and the outer shielding layer are copper wire braided shielding layers.

6. The high-efficiency shielding multi-core control cable according to claim 1, characterized in that, The armor layer is a steel strip armor layer.

7. The high-efficiency shielding multi-core control cable according to claim 1, wherein The outer sheath is made of polyethylene material.

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