Tensile waterproof railway signal cable

Abstract

The utility model relates to the technical field of cables, and provides a tensile waterproof railway signal cable, which comprises four star-shaped wire groups, water-blocking ropes are filled among the four star-shaped wire groups, and the four star-shaped wire groups and filling ropes are mutually twisted to form a wire body. And a polyester film wrapping layer, a water-blocking tape wrapping layer, an aluminum-plastic tape longitudinal wrapping layer, a polyethylene bonding lining, a steel wire mesh braided layer, a water-blocking tape wrapping reinforcing layer and a tensile waterproof polyethylene jacket layer are sequentially coated on the outer side of the wire body from inside to outside.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a tensile-resistant and waterproof railway signal cable. Background Art

[0002] Existing railway signal cables are generally only suitable for use in environmentally friendly locations, providing signal control for equipment. However, in humid and frequently moving environments, the moisture and tensile strength of ordinary railway signal cables are significantly reduced, making signal and data transmission difficult to control. Therefore, to ensure that railway signal cables can operate stably in these challenging environments, improvements must be made to their structure to enable them to be used in a wider range of situations.

[0003] In summary, the urgent problem to be solved is to enable it to be used in humid and frequently moving environments without changing the basic control and transmission performance of previous railway signal cables. Utility Model Content

[0004] (1) Technical problems solved

[0005] Addressing the shortcomings of existing technologies, the present invention provides a tensile-resistant, waterproof railway signal cable. Through its design, which includes a water-blocking rope, two layers of water-blocking tape wrapped around the cable, a longitudinal aluminum-plastic tape wrap, and a polyethylene bonded sheath, the cable's waterproof properties are enhanced both internally and externally. The use of a steel mesh braid and a tensile-resistant, waterproof sheath enhance the cable's tensile strength, protecting the cable's insulation from damage when subjected to external forces. Even if the cable sheath is damaged, water is unlikely to penetrate the cable, allowing it to maintain communication and power supply capabilities for a period of time. All components in the cable are designed to withstand long-term use in challenging environments while maintaining the unique properties of existing railway signal cables. This product is suitable for use in mountainous areas, coastal areas, high-rise buildings, subways, power plants, railways, and other locations.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A tensile-resistant and waterproof railway signal cable is characterized in that it includes four star-shaped wire groups, water-blocking ropes are filled between the four star-shaped wire groups, and the four star-shaped wire groups and the filling ropes are twisted together to form a wire body, and the outside of the wire body is sequentially coated with a polyester film wrapping layer, a water-blocking tape wrapping layer, an aluminum-plastic tape longitudinal wrapping layer and a polyethylene adhesive lining, a steel mesh braided layer, a water-blocking tape wrapping reinforcement layer, and a tensile-resistant and waterproof polyethylene outer jacket layer from the inside to the outside.

[0009] Preferably, each of the star-shaped wire groups is composed of four twisted insulated wire cores, each of which includes a copper conductor covered with a polyethylene insulation layer, and the four insulated wire cores are twisted and fixed with a cable tie.

[0010] Preferably, a water-blocking tape wrapping layer is wrapped around the polyester film wrapping layer.

[0011] Preferably, the water-blocking tape is longitudinally wrapped with a layer of aluminum-plastic tape around the outer surface of the wrapping layer, and at the same time, a layer of polyethylene bonding lining layer is extruded.

[0012] Preferably, a steel wire mesh braided layer is woven outside the polyethylene bonding lining layer, and the braiding density is not less than 80%.

[0013] Preferably, a layer of water-blocking tape is wrapped around the outside of the steel mesh braided layer to form a reinforcement layer.

[0014] Preferably, a tensile-resistant and waterproof polyethylene outer layer is extruded around the outer surface of the reinforcing layer of the water-blocking tape.

[0015] (3) Beneficial effects

[0016] The present invention provides a tensile-resistant and waterproof railway signal cable. It has the following beneficial effects:

[0017] The cable's waterproof properties are enhanced both internally and externally through the design of a water-blocking rope, two layers of water-blocking tape wrapped around it, an aluminum-plastic tape longitudinal wrap, and a polyethylene bonded sheath. The steel mesh braid and tensile-resistant waterproof sheath enhance the cable's tensile strength, protecting the cable's insulation from damage when subjected to external forces. Even if the cable sheath is damaged, water is unlikely to penetrate the cable, allowing it to maintain communication and power supply capabilities for a period of time. All components in the cable are designed to withstand long-term use in extreme environments while maintaining the unique properties of traditional railway signal cables. This product is suitable for use in mountainous areas, coastal areas, high-rise buildings, subways, power plants, railways, and other locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the utility model.

[0019] In the picture:

[0020] 1. Star line group;

[0021] 2. Water blocking rope;

[0022] 3. Polyester film wrapping layer;

[0023] 4. Water-blocking tape wrapped around the layer;

[0024] 5. Aluminum-plastic longitudinal cladding;

[0025] 6. Polyethylene bonded lining;

[0026] 7. Wire mesh braided layer;

[0027] 8. Water-blocking tape wrapped around the reinforcement layer;

[0028] 9. Tensile-resistant and waterproof polyethylene outer layer;

[0029] 101. Copper conductor;

[0030] 102. Polyethylene insulation layer;

[0031] 103. Cable tie. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] Refer to the attached Figure 1 A tensile-resistant and waterproof railway signal cable includes a tensile-resistant and waterproof railway signal cable, including four star-shaped wire groups 1, each star-shaped wire group 1 includes four insulated cores twisted together, each insulated core includes a copper conductor 101, and a high-density polyethylene insulation layer 102 is coated on the outside of the copper conductor 101, and the four insulated cores are twisted and fixed with a cable tie 103.

[0034] Water-blocking rope 2 is filled between the four star-shaped wire groups 1. The four star-shaped wire groups 1 and the filling rope are twisted together. After the twisting is formed, the wire bodies are wrapped with a polyester film wrapping layer 3 for tightening and reinforcement. The polyester film wrapping layer 3 is wrapped around the outside of the water-blocking tape wrapping layer 4. A layer of aluminum-plastic tape longitudinal wrapping 5 is longitudinally wrapped around the water-blocking tape wrapping layer 4. A polyethylene adhesive liner 6 is also extruded. A steel mesh braided layer 7 with a braiding density of not less than 80% is woven around the polyethylene adhesive liner. The steel mesh braided layer 7 is wrapped around the outside of the water-blocking tape reinforcement layer 8. A tensile-resistant and waterproof polyethylene outer layer 9 is extruded around the water-blocking tape reinforcement layer 8.

[0035] The cable ties 103 may be of different colors to distinguish different star-shaped cable groups 1 .

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tensile-resistant and waterproof railway signal cable, characterized in that: The invention comprises four star-shaped wire groups (1), water-blocking ropes (2) are filled between the four star-shaped wire groups (1), and the four star-shaped wire groups (1) and the filling ropes are twisted together to form a wire body, and the outer side of the wire body is sequentially coated with a polyester film wrapping layer (3), a water-blocking tape wrapping layer (4), an aluminum-plastic tape longitudinal wrapping layer (5), a polyethylene bonding lining (6), a steel wire mesh braiding layer (7), a water-blocking tape wrapping reinforcement layer (8), and a tensile waterproof polyethylene outer layer (9) from the inside to the outside.

2. The tensile-resistant and waterproof railway signal cable according to claim 1, characterized in that: Each star-shaped wire group (1) is composed of four twisted insulated wire cores, each of which includes a copper conductor (101) and a polyethylene insulation layer (102) coated on the outside of the copper conductor (101). The four insulated wire cores are twisted and fixed with a tie (103).

3. The tensile-resistant and waterproof railway signal cable according to claim 1 or 2, characterized in that: A water-blocking tape wrapping layer (4) is wrapped around the polyester film wrapping layer (3).

4. The tensile-resistant and waterproof railway signal cable according to claim 3, characterized in that: The water-blocking tape wrapping layer (4) is longitudinally wrapped with an aluminum-plastic tape longitudinal wrapping layer (5), and at the same time, a polyethylene bonding lining layer (6) is extruded.

5. The tensile-resistant and waterproof railway signal cable according to claim 4, characterized in that: A steel wire mesh braided layer (7) is braided outside the polyethylene bonding lining (6) layer, and the braiding density is not less than 80%.

6. The tensile-resistant and waterproof railway signal cable according to claim 5, characterized in that: The steel mesh braided layer (7) is wrapped with a layer of water-blocking tape and a reinforcing layer (8).

7. The tensile-resistant and waterproof railway signal cable according to claim 6, characterized in that: The water-blocking tape is wrapped around the reinforcement layer (8) and a tensile-resistant and waterproof polyethylene outer layer (9) is extruded outside.

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