Positionable cable

Abstract

The utility model discloses a positionable cable, and belongs to the field of cables. A cable capable of being positioned comprises a cable core and an outer insulating layer wrapping the outer side of the cable core. The filling layer is filled between the cable core and the outer insulating layer; the shielding tape layer coats the outer side of the outer insulating layer; the inner sheath coats the outer side of the shielding tape layer; the multiple positioning lantern rings are distributed at intervals and arranged on the inner sheath in a sleeving mode, and fluorescent coatings are printed on the surfaces of the positioning lantern rings; and the outer sheath wraps the inner sheath and the outer side of the positioning lantern ring, and the outer sheath is made of a transparent material. The cable positioning device has the advantage of improving the cable positioning effect.

Description

Technical Field

[0001] This application relates to the field of cables, and more particularly to a positionable cable. Background Technology

[0002] As a crucial carrier of modern power transmission and communication, the number of cable laying projects is constantly increasing due to the growing demand for power and information transmission from residents and businesses. Because of urban land scarcity and urban planning, underground cable laying is a common method of power transmission, offering advantages such as small footprint and reliable power transmission.

[0003] Underground cable laying often faces challenges such as light obstruction, making the construction process inconvenient. For example, when controlling the cable length, obstructed light makes it difficult to measure the cable length. To improve this, markings are currently printed on the cable surface. These markings facilitate manual observation and positioning, helping to obtain information such as cable length.

[0004] However, friction inevitably occurs on the cable surface during cable laying, and the environment for underground cable laying is relatively harsh, which can easily cause the markings to wear off or even fall off, resulting in poor positioning results. Summary of the Invention

[0005] To improve the effectiveness of cable positioning, this application provides a positionable cable.

[0006] The positioning cable provided in this application adopts the following technical solution:

[0007] A positionable cable includes a cable core, and:

[0008] An outer insulation layer covers the outside of the cable core;

[0009] A filler layer is provided between the cable core and the outer insulation layer.

[0010] A shielding layer covers the outside of the outer insulating layer;

[0011] Inner sheath, covering the outer side of the shielding strip layer;

[0012] Multiple positioning collars are provided, which are spaced apart and fitted onto the inner sheath. The surface of the positioning collars is printed with a fluorescent coating.

[0013] An outer sheath covers the outer side of the inner sheath and the positioning collar, and the outer sheath is made of transparent material.

[0014] By adopting the above technical solution, the cable is double-protected by an inner sheath and an outer sheath. The fluorescent coating serves as a positioning mark, facilitating positioning during installation. Furthermore, the positioning collar is positioned between the inner and outer sheaths, preventing wear and tear from the external environment and ensuring the fluorescent coating remains intact. This provides a more durable positioning function and improves positioning effectiveness. The combination of the positioning collar and the fluorescent coating makes the fluorescent markings more prominent on the cable surface, further facilitating positioning.

[0015] Optionally, the positioning collar surface is provided with a plurality of raised strips, and the fluorescent coating covers the raised strips.

[0016] By adopting the above technical solution, not only can the raised strip make the fluorescent coating undulate on the positioning collar, allowing users to observe the fluorescent markings on the cable surface at a wider angle, but it can also increase the light scattering range in low light conditions, facilitating positioning. Furthermore, the raised strip can increase the contact area between the positioning collar and the outer jacket, improve the bonding stability between the positioning collar and the outer jacket, prevent the positioning collar from shifting, and enhance positioning accuracy.

[0017] Optionally, the protrusions extend along the axial direction of the cable, and the protrusions are spaced apart circumferentially along the positioning collar.

[0018] By adopting the above technical solution, the axial extension and circumferential spacing of the convex strips facilitate observation and positioning.

[0019] Optionally, the two ends of the protrusion are smoothly rounded in an arc shape.

[0020] By adopting the above technical solution, the contact area is increased, thereby increasing the range of light scattering.

[0021] Optionally, the protrusions extend circumferentially along the cable, and the protrusions are spaced apart axially along the positioning collar.

[0022] By adopting the above technical solution, the circumferential extension and axial spacing of the convex strips provide another implementation form that is easy to observe and locate.

[0023] Optionally, the inner sheath is a cross-linked polyethylene sheath.

[0024] By adopting the above technical solution, the cross-linked polyethylene sheath has good electrical insulation properties and processing characteristics, and outstanding high temperature resistance, making it suitable for use as an inner sheath.

[0025] Optionally, the shielding layer is a tin-plated copper wire braided strip.

[0026] By adopting the above technical solution, the tin-plated copper wire braided tape can adapt to the bending and movement of the cable, has good toughness, effectively blocks external electromagnetic interference, and limits the electromagnetic radiation generated by the cable core to a certain range.

[0027] Optionally, the outer sheath is a transparent thermoplastic polyurethane elastomer sheath.

[0028] By adopting the above technical solution, thermoplastic polyurethane elastomer not only has the property of transparency, but also has high wear resistance, toughness and aging resistance, so it is suitable for use as an outer sheath.

[0029] In summary, this application has the following beneficial effects:

[0030] 1. The cable employs a double protection system with an inner and outer sheath. The fluorescent coating serves as a positioning marker, facilitating placement during installation. A positioning collar is positioned between the inner and outer sheaths to prevent wear and tear from the external environment, ensuring the fluorescent coating remains intact and providing a more durable positioning function. The combination of the positioning collar and the fluorescent coating makes the fluorescent markings more prominent on the cable surface, further aiding in positioning.

[0031] 2. The raised strips on the positioning collar not only make the fluorescent coating undulate on the positioning collar, allowing users to observe the fluorescent markings on the cable surface at a wider angle, but also increase the light scattering range in low light conditions, facilitating positioning. Furthermore, the raised strips increase the contact area between the positioning collar and the outer jacket, improving the bonding stability between the positioning collar and the outer jacket, preventing displacement of the positioning collar, and enhancing positioning accuracy. Attached Figure Description

[0032] Figure 1 This is a cross-sectional view of the cable according to Embodiment 1 of this application.

[0033] Figure 2 This is a plan view of the inner sheath and positioning collar in the cable of Embodiment 1 of this application.

[0034] Figure 3 This is a plan view of the inner sheath and positioning collar in the cable of Embodiment 1 of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Cable core; 11. Conductor; 12. Inner insulation layer; 2. Filler layer; 3. Outer insulation layer; 4. Shielding layer; 5. Inner sheath; 6. Positioning collar; 61. Raised bar; 7. Outer sheath. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0038] Example 1

[0039] Embodiment 1 of this application discloses a positionable cable. For example... Figure 1As shown, a positioning cable includes a cable core 1, a filling layer 2, an outer insulation layer 3, a shielding layer, an inner sheath 5, and an outer sheath 7 arranged sequentially from the inside to the outside. Multiple positioning rings 6 are provided between the inner sheath 5 and the outer sheath 7, and the positioning rings 6 are spaced apart.

[0040] The cable core 1 can be provided in one or more ways. In this embodiment, the cable core 1 is provided in three ways. The cable core 1 includes a conductor 11 and an inner insulation layer 12. The conductor 11 can be a copper conductor 11, and the inner insulation layer 12 can be a polyvinyl chloride layer. The inner insulation layer 12 covers the outside of the conductor 11, so that the three conductors 11 do not interfere with each other.

[0041] The outer insulation layer 3 covers the outside of multiple cable cores 1. The outer insulation layer 3 can be a polyvinyl chloride layer, which further insulates the inside of the cable and prevents leakage.

[0042] The filling layer 2 is filled between the cable core 1 and the outer insulation layer 3. The filling layer 2 is filled with magnesium hydroxide flame retardant. In the event of a fire, the magnesium hydroxide flame retardant plays a certain role in hindering the spread of fire.

[0043] The shielding layer is wrapped around the outside of the outer insulation layer 3. The shielding layer is a tin-plated copper wire braided tape. The tin-plated copper wire braided tape can adapt to the bending and movement of the cable, has good toughness, and effectively blocks external electromagnetic interference, and limits the electromagnetic radiation generated by the cable core 1 to a certain range.

[0044] The inner sheath 5 covers the outside of the shielding layer. The inner sheath 5 is a cross-linked polyethylene sheath. Cross-linked polyethylene has a mesh structure. Therefore, the cross-linked polyethylene sheath not only has good electrical insulation performance and processing characteristics, but also has outstanding high temperature resistance. It is not easy to deform in high temperature environment and maintains the stability of the internal structure of the cable.

[0045] Multiple positioning collars 6 are provided, spaced apart and fitted onto the inner sheath 5. For example, depending on positioning needs, a positioning collar 6 can be installed every 0.5m along the length of the cable, allowing construction personnel to determine the cable laying length based on the position of the positioning collars 6. The surface of the positioning collar 6 is printed with a fluorescent coating, which can be formed by coating and curing a polyurethane coating containing fluorescent powder. As needed, the fluorescent coating can be made into specific numbers or patterns for identification.

[0046] When light is obstructed, the fluorescent coating can emit fluorescence for construction workers to observe and identify, thereby locating the cable and facilitating its laying and installation.

[0047] The positioning collar 6 can be obtained by wrapping a strip of positioning tape around the inner sheath 5. The positioning tape can be pre-printed with a fluorescent coating. After the inner sheath 5 is formed on the surface of the shielding tape layer, the positioning tape is fixed to the outside of the inner sheath 5 at certain intervals. The fixing method is to wrap the positioning tape around the inner sheath 5 so that the inner wall of the positioning tape is in full contact with the outer wall of the inner sheath 5. Then, the two ends of the positioning tape are fixed by heat fusion connection or adhesive connection to form the positioning collar 6. The positioning collar 6 can be made of PVC material.

[0048] The positioning collar 6 has multiple raised strips 61 on its surface, and a fluorescent coating covers the raised strips 61. In this embodiment, as shown... Figure 1 and Figure 2 As shown, the raised strips 61 extend along the axial direction of the cable, and the raised strips 61 are distributed circumferentially around the positioning collar 6. Not only can the raised strips 61 make the fluorescent coating on the positioning collar 6 undulate, allowing construction personnel to observe the fluorescent markings on the cable surface at a wider angle, but they can also increase the light scattering range in low light conditions, facilitating positioning. Furthermore, the raised strips 61 can increase the contact area between the positioning collar 6 and the outer jacket, improve the bonding stability between the positioning collar 6 and the outer jacket, prevent the positioning collar 6 from shifting, and enhance positioning accuracy.

[0049] The two ends of the protrusion 61 are smoothly rounded, which further increases the contact area between the protrusion 61 and the outer sheath 7 and increases the range of light scattering.

[0050] The outer sheath 7 covers the outer side of the inner sheath 5 and the positioning ring 6. The outer sheath 7 is made of transparent material, specifically a transparent thermoplastic polyurethane elastomer sheath. Thermoplastic polyurethane elastomer not only has the characteristics of transparency, but also high wear resistance, toughness and aging resistance. The positioning ring 6 is set between the inner sheath 5 and the outer sheath 7 to avoid the marking from falling off due to friction on the cable surface during construction and laying, so that the fluorescent coating will not be erased. In addition, the transparent material of the outer sheath 7 allows the construction personnel to observe the fluorescent marking, thereby providing a more durable positioning function and improving the positioning effect.

[0051] Example 2

[0052] The difference between this embodiment and Embodiment 1 lies in the way the protruding strip 61 is set.

[0053] like Figure 3 As shown, in this embodiment, the protrusions 61 extend along the axial direction of the cable, and the protrusions 61 are spaced apart along the circumferential direction of the positioning collar 6, providing another way for the protrusions 61 to be matched with the fluorescent coating in a way that is easy to observe and position.

[0054] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this specific embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A positionable electrical cable, characterized by: Including cable core (1), and: An outer insulation layer (3) is wrapped around the outside of the cable core (1); A filling layer (2) is filled between the cable core (1) and the outer insulation layer (3); A shielding layer is wrapped around the outside of the outer insulation layer (3); Inner sheath (5) covers the outside of the shielding strip layer; Positioning collars (6) are provided in multiples, and the positioning collars (6) are spaced apart and fitted onto the inner sheath (5). The surface of the positioning collars (6) is printed with a fluorescent coating. An outer sheath (7) covers the outer side of the inner sheath (5) and the positioning collar (6), and the outer sheath (7) is made of transparent material.

2. A positionable electrical cable according to claim 1, wherein: The positioning collar (6) has a plurality of raised strips (61) on its surface, and the fluorescent coating covers the raised strips (61).

3. A positionable electrical cable according to claim 2, wherein: The protrusions (61) extend along the axial direction of the cable, and the protrusions (61) are distributed circumferentially between each other along the positioning collar (6).

4. A positionable electrical cable according to claim 3, wherein: The two ends of the protrusion (61) are smoothly rounded in an arc shape.

5. A positionable electrical cable according to claim 2, wherein: The protrusions (61) extend circumferentially along the cable, and the protrusions (61) are spaced apart axially along the positioning collar (6).

6. A positionable electrical cable according to claim 1, wherein: The inner sheath (5) is a cross-linked polyethylene sheath.

7. A positionable electrical cable according to claim 1, wherein: The shielding layer is a tin-plated copper wire braided strip.

8. A positionable electrical cable according to claim 1, wherein: The outer sheath (7) is a transparent thermoplastic polyurethane elastomer sheath.

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