Waterproof low-smoke halogen-free environmental protection cable

Abstract

This utility model discloses a water-blocking, low-smoke, halogen-free, environmentally friendly cable, including an outer sheath, an inner liner sleeved inside the outer sheath, an insulating sleeve placed inside the inner liner sleeve, a protective sheath sleeved inside the insulating sleeve, and a cable core placed inside the protective sheath. A buffer groove is formed on the inner wall of the outer sheath, and a shrinkage groove is formed inside the outer sheath. This water-blocking, low-smoke, halogen-free, environmentally friendly cable, through the shrinkage groove inside the outer sheath, provides good hollowness. Simultaneously, the buffer groove and mating groove on the inner wall and outer side of the outer sheath are aligned, giving the outer sheath strong elasticity. This facilitates rapid recovery when the outer sheath is compressed, reducing the probability of surface dents when the outer sheath is compressed, thereby greatly improving the water resistance of the outer sheath surface.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, and in particular to a water-blocking, low-smoke, halogen-free environmentally friendly cable. Background Technology

[0002] Currently, wires and cables are widely used in industrial production, transportation, construction engineering and facilities, and even in high-end fields such as space and ocean. With the development of the social economy, cable varieties are constantly being updated and improved, and production volume is also continuously increasing. Due to the application of cables in different fields, people's requirements for them are also increasing.

[0003] Utility model patent CN220526639U discloses a low-smoke halogen-free environmentally friendly cable, including a wear-resistant and corrosion-resistant layer. The outer circumference of the wear-resistant and corrosion-resistant layer is uniformly provided with several anti-slip grooves, and several anti-slip strips are installed on the outer circumference of the wear-resistant and corrosion-resistant layer. A support layer is installed on the inner circumference of the wear-resistant and corrosion-resistant layer, and support steel wires are uniformly installed inside the support layer. An environmentally friendly fireproof layer is fixedly connected to the inner circumference of the support layer, and a waterproof layer is provided on the inner circumference of the environmentally friendly fireproof layer. Skeleton fins are uniformly installed on the inner circumference of the waterproof layer. This utility model improves the cable's waterproof capability through the waterproof layer, enhances its flame retardancy through the environmentally friendly fireproof layer, and extends the cable's service life. The installation of the support steel wires, skeleton fins, and support layer improves the cable's resistance to bending deformation. The installation of the binding structure achieves fixed binding of the cable cores, preventing relative sliding between the cores and improving the stability of the core installation.

[0004] However, this utility model still has shortcomings. In actual use, the cable is subjected to external pressure during installation, which causes dents on its surface and makes it easy for liquid to accumulate in the dents. As a result, the cable surface does not have water resistance. Over time, the liquid on the cable surface can easily corrode into its interior, which can easily damage the cable core. Utility Model Content

[0005] The main purpose of this utility model is to provide a water-blocking, low-smoke, halogen-free environmentally friendly cable that can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A water-blocking, low-smoke, halogen-free, environmentally friendly cable includes an outer sheath, an inner liner fitted inside the outer sheath, an insulating sleeve placed inside the inner liner, a protective sheath fitted inside the insulating sleeve, a cable core placed inside the protective sheath, a buffer groove formed on the inner wall of the outer sheath, a shrinkage groove formed inside the outer sheath, a mating groove formed on the outer side of the outer sheath, and a guide ring fixedly connected to the outer side of the outer sheath near the mating groove.

[0008] Preferably, an adhesive is applied between the outer sheath and the inner liner, and an adhesive is applied between the insulating sleeve and the protective sheath. The protective sheath is spirally wound around the outside of the cable core, and the main material of the insulating sleeve is rubber.

[0009] Preferably, the main material of the cable core is brass, the cross-section of the buffer groove and the connecting groove is trapezoidal, the buffer groove and the connecting groove are corresponding to each other, and the cross-section of the shrinking groove is trapezoidal.

[0010] Preferably, each set of buffer grooves and docking grooves is adjacent to a set of shrinkage grooves, the cross-section of the guide ring is inclined, and the center lines of the outer sheath and the inner liner are located on the same straight line.

[0011] Preferably, a protective pad is placed on the inner side of the inner liner near the insulating sleeve, the protective pad is in contact with the insulating sleeve, and an adhesive is applied between the inner liner and the protective pad.

[0012] Preferably, an adhesive is applied between the protective pad and the insulating sleeve, the main material of the protective pad is rubber, and there are three sets of protective pads.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The shrinkage groove inside the outer sheath provides good hollowness, while the inner wall and outer side of the outer sheath have corresponding buffer grooves and mating grooves. This gives the outer sheath strong elasticity, allowing it to quickly return to its original position when compressed, thus reducing the probability of dents on the surface when compressed and greatly improving the water resistance of the outer sheath surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a water-blocking, low-smoke, halogen-free environmentally friendly cable according to this utility model.

[0016] Figure 2 This is a partial structural diagram of a water-blocking, low-smoke, halogen-free environmentally friendly cable according to this utility model. Figure 1 ;

[0017] Figure 3 This is a partial structural diagram of a water-blocking, low-smoke, halogen-free environmentally friendly cable according to this utility model. Figure 2 ;

[0018] Figure 4 This is a partial structural diagram of a water-blocking, low-smoke, halogen-free environmentally friendly cable according to this utility model. Figure 3 .

[0019] In the diagram: 1. Outer sheath; 2. Inner liner; 3. Insulating sleeve; 4. Protective sheath; 5. Cable core; 6. Buffer groove; 7. Shrink groove; 8. Butt groove; 9. Guide ring; 10. Protective pad. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-4 As shown, a water-blocking, low-smoke, halogen-free environmentally friendly cable includes an outer sheath 1, an inner liner 2 fitted inside the outer sheath 1, an insulating sleeve 3 placed inside the inner liner 2, a protective sheath 4 fitted inside the insulating sleeve 3, and a cable core 5 placed inside the protective sheath 4. A buffer groove 6 is formed on the inner wall of the outer sheath 1, a shrinkage groove 7 is formed inside the outer sheath 1, a mating groove 8 is formed on the outer side of the outer sheath 1, and a guide ring 9 is fixedly connected to the outer side of the outer sheath 1 near the mating groove 8.

[0022] In this embodiment, an adhesive is applied between the outer sheath 1 and the inner liner 2, and an adhesive is applied between the insulating sleeve 3 and the protective sheath 4. The protective sheath 4 is spirally wound around the outside of the cable core 5. The main body material of the insulating sleeve 3 is rubber, and the main body material of the cable core 5 is brass. The cross-sections of the buffer groove 6 and the mating groove 8 are trapezoidal, and the buffer groove 6 and the mating groove 8 correspond to each other. The cross-section of the shrinkage groove 7 is trapezoidal, and each set of buffer grooves 6 and mating grooves 8 is adjacent to a set of shrinkage grooves 7. The cross-section of the guide ring 9 is inclined, and the center lines of the outer sheath 1 and the inner liner 2 are located on the same straight line.

[0023] Specifically, during the laying process, the outer sleeve 1 is compressed, causing it to be under stress. This, combined with the internal shrinkage groove 7, creates a hollow interior, giving the outer sleeve 1 good elasticity. Simultaneously, the inner wall of the outer sleeve 1 and the outer side have corresponding buffer grooves 6 and mating grooves 8, providing good extensibility. This allows the outer sleeve 1 to quickly return to its original position after being compressed, preventing dents from forming on its surface and eliminating the possibility of water retention. Furthermore, the outer side of the outer sleeve 1 is designed with… Multiple sets of guide rings 9 are provided, which can prevent water from contacting the outer sleeve 1, thus greatly improving the water resistance of the outer sleeve 1. The shrinkage groove 7 opened inside the outer sleeve 1 makes the inner part of the outer sleeve 1 have good hollowness. At the same time, the buffer groove 6 and the docking groove 8 opened on the inner wall and the outer side of the outer sleeve 1 are aligned, thus giving the outer sleeve 1 strong elasticity. This can facilitate the rapid reset of the outer sleeve 1 when it is squeezed, thereby reducing the probability of dents on the surface of the outer sleeve 1 when squeezed, and thus greatly improving the water resistance of the surface of the outer sleeve 1.

[0024] In this embodiment, a protective pad 10 is placed on the inner side of the inner liner 2 near the insulating sleeve 3. The protective pad 10 is in contact with the insulating sleeve 3. Glue is applied between the inner liner 2 and the protective pad 10, and between the protective pad 10 and the insulating sleeve 3. The main material of the protective pad 10 is rubber, and there are three sets of protective pads 10.

[0025] Specifically, the outer sheath 1 is laid out in the designated area, and the outer sheath 1 wraps around the cable core 5. Three sets of protective pads 10 restrict the cable core 5, so as to prevent the cable core 5 from shifting inside the inner sheath 2.

[0026] Working principle:

[0027] In use, the outer sheath 1 is first laid out entirely in the designated area, covering the cable core 5. If the outer sheath 1 is compressed during installation, the internal shrinkage groove 7 creates a hollow structure, giving it good elasticity. Simultaneously, the inner wall of the outer sheath 1 and the outer side have corresponding buffer grooves 6 and mating grooves 8, providing good extensibility. This allows the outer sheath 1 to quickly return to its original position after compression, preventing dents and water accumulation on its surface. Furthermore, the outer sheath 1 has multiple... The guide ring 9 prevents water from contacting the outer sheath 1, thus greatly improving the water resistance of the outer sheath 1. At the same time, the three sets of protective pads 10 limit the cable core 5, preventing the cable core 5 from shifting within the inner bushing 2. The shrinkage groove 7 inside the outer sheath 1 provides good hollowness. The buffer groove 6 and mating groove 8 on the inner wall and outer side of the outer sheath 1 are aligned, giving the outer sheath 1 strong elasticity. This allows the outer sheath 1 to quickly return to its original position when compressed, reducing the probability of dents on the surface of the outer sheath 1 when compressed, thereby greatly improving the water resistance of the outer sheath 1 surface.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water-blocking, low-smoke, halogen-free environmentally friendly cable, comprising an outer sheath (1), characterized in that: The inner side of the outer sheath (1) is fitted with an inner liner (2), and an insulating sleeve (3) is placed inside the inner liner (2). A protective sheath (4) is fitted inside the insulating sleeve (3), and a cable core (5) is placed inside the protective sheath (4). A buffer groove (6) is provided on the inner wall of the outer sheath (1). A shrinkage groove (7) is provided inside the outer sheath (1). A docking groove (8) is provided on the outer side of the outer sheath (1). A guide ring (9) is fixedly connected to the outer side of the outer sheath (1) near the docking groove (8).

2. The water-blocking, low-smoke, halogen-free environmentally friendly cable according to claim 1, characterized in that: The outer sheath (1) and the inner liner (2) are coated with adhesive, and the insulating sleeve (3) and the protective sheath (4) are coated with adhesive. The protective sheath (4) is spirally wound around the outside of the cable core (5). The main material of the insulating sleeve (3) is rubber.

3. The water-blocking, low-smoke, halogen-free environmentally friendly cable according to claim 1, characterized in that: The main body of the cable core (5) is made of brass. The cross-sections of the buffer groove (6) and the docking groove (8) are trapezoidal. The buffer groove (6) and the docking groove (8) correspond to each other. The cross-section of the shrinking groove (7) is trapezoidal.

4. The water-blocking, low-smoke, halogen-free environmentally friendly cable according to claim 1, characterized in that: Each set of buffer grooves (6) and docking grooves (8) is adjacent to a set of shrinkage grooves (7). The cross-section of the guide ring (9) is inclined. The center lines of the outer sleeve (1) and the inner liner (2) are on the same straight line.

5. A water-blocking, low-smoke, halogen-free environmentally friendly cable according to claim 1, characterized in that: A protective pad (10) is placed on the inner side of the inner liner (2) near the insulating sleeve (3). The protective pad (10) is in contact with the insulating sleeve (3), and an adhesive is applied between the inner liner (2) and the protective pad (10).

6. A water-blocking, low-smoke, halogen-free environmentally friendly cable according to claim 5, characterized in that: The protective pad (10) and the insulating sleeve (3) are coated with adhesive. The main material of the protective pad (10) is rubber. There are three sets of the protective pad (10).

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