Drag chain cable

Abstract

The utility model relates to the technical field of cables, and discloses a drag chain cable, which comprises a cable core main body comprising at least two control cable cores and at least two power cable cores; the wrapping tape layer is wrapped on the periphery of the wire core main body, and the wrapping tape layer at least comprises a polytetrafluoroethylene wrapping layer; and the sheath layer is coated on the periphery of the wrapping tape layer. The service life of the drag chain cable can be prolonged to a certain extent.

Description

Technical Field

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

[0002] The drag chain is U-shaped, and the drag chain cable installed inside the drag chain will also present a U-shaped shape with the drag chain. Therefore, the drag chain cable must withstand the bending force in the bent state, which is easy to cause excessive friction between the wire core and the outer sheath layer, resulting in a lower service life of the drag chain cable.

[0003] In view of this, it is necessary to design a drag chain cable to improve the service life of the drag chain cable. Utility Model Content

[0004] The utility model provides a drag chain cable to improve the service life of the drag chain cable

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drag chain cable, comprising:

[0007] The wire core body includes at least two control wire cores and at least two power wire cores;

[0008] A wrapping tape layer, wrapped around the outer periphery of the core body, and the wrapping tape layer at least includes a polytetrafluoroethylene wrapping layer;

[0009] The sheath layer is coated on the outer circumference of the wrapping tape layer.

[0010] Optionally, one of the control cores includes at least two core conductors, and an insulating rubber layer is provided on the periphery of each of the core conductors;

[0011] All the core conductors in the same control core are twisted together.

[0012] Optionally, one of the power cord cores comprises at least two power conductors, and an insulating rubber layer is provided on the periphery of each of the power conductors;

[0013] All the power conductors in the same power line core are twisted together.

[0014] Optionally, the gap between the battery core body and the wrapping tape layer is filled with nylon filaments.

[0015] Optionally, the wrapping tape layer further includes an aluminum foil wrapping layer, and the aluminum foil wrapping layer is wrapped around the polytetrafluoroethylene wrapping layer.

[0016] Optionally, it further comprises a woven layer and a cotton paper wrapping layer, wherein the woven layer is wrapped on the aluminum foil wrapping layer, and the cotton paper wrapping layer is wrapped on the woven layer;

[0017] The woven layer is located between the wrapping tape layer and the sheath layer, and the tissue paper wrapping layer is located between the wrapping tape layer and the sheath layer.

[0018] Optionally, the insulating rubber layers coated on different conductors have different colors.

[0019] Optionally, in the first control core, the color of the insulating rubber layer coated on one of the core conductors is blue, and the color of the insulating rubber layer coated on the other core conductor is blue and white; in the second control core, the color of the insulating rubber layer coated on one of the core conductors is orange, and the color of the insulating rubber layer coated on the other core conductor is orange and white;

[0020] In the first power cord core, the color of the insulating rubber layer covering one of the power conductors is green, and the color of the insulating rubber layer covering the other power conductor is green and white; in the second power cord core, the color of the insulating rubber layer covering one of the power conductors is brown, and the color of the insulating rubber layer covering the other power conductor is brown and white.

[0021] Optionally, the jacket layer is a wear-resistant plastic layer.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The drag chain cable provided by the utility model is provided with a wrapping tape layer, and the wrapping tape layer is wrapped around the outer periphery of the core body, and a polytetrafluoroethylene wrapping layer is provided, thereby effectively improving the bending resistance of the drag chain cable and better protecting the core body; in addition, the polytetrafluoroethylene wrapping layer in the wrapping tape layer cooperates with the sheath layer to better protect the core body and effectively improve the service life of the drag chain cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 work.

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure of the drag chain cable provided in the first embodiment of the utility model;

[0026] Reference numerals: 1, control core; 11, core conductor; 101, insulating rubber layer; 2, power core; 21, power conductor; 3, wrapping tape layer; 31, polytetrafluoroethylene wrapping layer; 32, aluminum foil wrapping layer;

[0027] 4. Sheath layer; 5. Nylon thread; 6. Braided layer; 7. Cotton paper wrapping layer. DETAILED DESCRIPTION

[0028] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0029] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0030] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0031] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0032] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0033] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0034] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0035] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0036] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] In view of the above-mentioned defects of the existing drag chain cables, the applicant, based on many years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theory, actively conducts research and innovation, hoping to create a technology that can solve the defects in the existing technology, making the drag chain cables more practical and longer in service life. After continuous research and design, and repeated trial production and improvement, the present utility model with real practical value was finally created.

[0038] Please refer to Figure 1 The embodiment of the utility model provides a drag chain cable, which can improve the service life of the drag chain cable to a certain extent.

[0039] The drag chain cable comprises: a core body, including at least two control cores 1 and at least two power cores 2; the control core 1 is used as a signal control line, and the power core 2 is used as a power line to supply power. Preferably, at least two control cores 1 and at least two power cores 2 are arranged in a circular array around the center line of the core body, thereby further improving the pulling and bending resistance of the drag chain cable.

[0040] The wrapping tape layer 3 is wrapped around the outer periphery of the core body, and the wrapping tape layer 3 at least includes a polytetrafluoroethylene wrapping layer 31; it should be noted that the polytetrafluoroethylene wrapping layer 31 has an extremely low friction coefficient, and also has excellent chemical stability, corrosion resistance, sealing, high lubricity and non-stickiness, electrical insulation and good anti-aging resistance, thereby effectively avoiding the core body and the outer sheath layer 4 from generating a large friction force, avoiding the situation where the core body is broken due to bending force, thereby effectively improving the service life of the drag chain cable.

[0041] The sheath layer 4, which is coated on the outer circumference of the wrapping tape layer 3, plays a good protective role and is also beneficial to improving the service life of the drag chain cable.

[0042] Optionally, a control core 1 includes at least two core conductors 11, and an insulating rubber layer 101 is provided on the periphery of each core conductor 11; all the core conductors 11 in the same control core 1 are twisted together, thereby further improving the pull resistance and improving the bending ability of the drag chain cable to a certain extent.

[0043] Optionally, a power cord core 2 includes at least two power conductors 21, and an insulating rubber layer 101 is provided on the periphery of each power conductor 21; all power conductors 21 in the same power cord core 2 are twisted together, thereby improving the bending ability of the drag chain cable to a certain extent.

[0044] Optionally, the gap between the battery core body and the wrapping tape layer 3 is filled with nylon thread 5. The provision of nylon thread 5 further improves the pulling resistance and flexible bending capabilities of the drag chain cable, and the nylon thread 5 cooperates with the polytetrafluoroethylene wrapping layer 31 to well buffer the core body and prevent the core body from being subjected to excessive tension or bending force. Preferably, the nylon thread 5 fills the gap.

[0045] Optionally, the wrapping tape layer 3 further includes an aluminum foil wrapping layer 32, and the aluminum foil wrapping layer 32 is wrapped on the polytetrafluoroethylene wrapping layer 31. It should be supplemented that the aluminum foil wrapping layer 32 cooperates with the polytetrafluoroethylene wrapping layer 31, which can help reduce the force of the outer sheath layer 4 on the core body, that is, the friction coefficient between the aluminum foil wrapping layer 32 and the polytetrafluoroethylene wrapping layer 31 is lower, so that the flexible bending of the drag chain cable is easier to achieve. In addition, the aluminum foil wrapping layer 32 plays a certain role in resisting electromagnetic interference.

[0046] Optionally, the drag chain cable further comprises a braided layer 6 and a cotton paper wrapping layer 7, and the braided layer 6 is coated on the aluminum foil wrapping layer 32, and the cotton paper wrapping layer 7 is coated on the braided layer 6; the braided layer 6 is located between the wrapping tape layer 3 and the sheath layer 4, and the cotton paper wrapping layer 7 is located between the wrapping tape layer 3 and the sheath layer 4. The braided layer 6 is woven from metal wires and has a good anti-electromagnetic interference effect, and cooperates with the aluminum foil wrapping layer 32 to further enhance the anti-electromagnetic interference effect.

[0047] Optionally, the insulating rubber layers 101 coated on different conductors have different colors for easy identification.

[0048] Optionally, in the first control core 1, the color of the insulating rubber layer 101 covered by one of the core conductors 11 is blue, and the color of the insulating rubber layer 101 covered by the other core conductor 11 is blue and white; in the second control core 1, the color of the insulating rubber layer 101 covered by one of the core conductors 11 is orange, and the color of the insulating rubber layer 101 covered by the other core conductor 11 is orange and white; in the first power core 2, the color of the insulating rubber layer 101 covered by one of the power conductors 21 is green, and the color of the insulating rubber layer 101 covered by the other power conductor 21 is green and white; in the second power core 2, the color of the insulating rubber layer 101 covered by one of the power conductors 21 is brown, and the color of the insulating rubber layer 101 covered by the other power conductor 21 is brown and white.

[0049] Optionally, the sheath layer 4 is a wear-resistant plastic layer to improve the wear resistance of the drag chain cable and to increase the service life of the drag chain cable.

[0050] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A drag chain cable, characterized in that: include: A wire core body, comprising at least two control wire cores (1) and at least two power wire cores (2); A wrapping tape layer (3) wrapped around the outer periphery of the wire core body, and the wrapping tape layer (3) at least comprises a polytetrafluoroethylene wrapping layer (31); The sheath layer (4) is coated on the outer circumference of the wrapping tape layer (3).

2. The drag chain cable according to claim 1, characterized in that: One of the control wire cores (1) comprises at least two wire core conductors (11), and an insulating rubber layer (101) is provided on the outer periphery of each of the wire core conductors (11); All the core conductors (11) in the same control core (1) are twisted together.

3. The drag chain cable according to claim 2, characterized in that: One power line core (2) comprises at least two power conductors (21), and an insulating rubber layer (101) is provided on the outer periphery of each power conductor (21); All the power conductors (21) in the same power line core (2) are twisted together.

4. The drag chain cable according to claim 1, characterized in that: The gap between the wire core body and the wrapping tape layer (3) is filled with nylon filaments (5).

5. The drag chain cable according to claim 1, characterized in that: The wrapping tape layer (3) further comprises an aluminum foil wrapping layer (32), and the aluminum foil wrapping layer (32) is wrapped around the polytetrafluoroethylene wrapping layer (31).

6. The drag chain cable according to claim 5, characterized in that: It also includes a woven layer (6) and a cotton paper wrapping layer (7), wherein the woven layer (6) is wrapped on the aluminum foil wrapping layer (32), and the cotton paper wrapping layer (7) is wrapped on the woven layer (6); The woven layer (6) is located between the wrapping tape layer (3) and the sheath layer (4), and the cotton paper wrapping layer (7) is located between the wrapping tape layer (3) and the sheath layer (4).

7. The drag chain cable according to claim 3, characterized in that: The insulating rubber layers (101) coated on different conductors have different colors.

8. The drag chain cable according to claim 7, characterized in that: In the first control wire core (1), the color of the insulating rubber layer (101) coated on one of the wire core conductors (11) is blue, and the color of the insulating rubber layer (101) coated on the other wire core conductor (11) is blue and white; in the second control wire core (1), the color of the insulating rubber layer (101) coated on one of the wire core conductors (11) is orange, and the color of the insulating rubber layer (101) coated on the other wire core conductor (11) is orange and white; In the first power cord core (2), the color of the insulating rubber layer (101) coated on one of the power conductors (21) is green, and the color of the insulating rubber layer (101) coated on the other power conductor (21) is green and white; in the second power cord core (2), the color of the insulating rubber layer (101) coated on one of the power conductors (21) is brown, and the color of the insulating rubber layer (101) coated on the other power conductor (21) is brown and white.

9. The drag chain cable according to claim 1, characterized in that: The sheath layer (4) is a wear-resistant plastic layer.

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