HDPE electric wire and cable plastic pipe

Abstract

The utility model discloses an HDPE electric wire and cable plastic pipe, which relates to the technical field of cable protection and comprises an inner core, an inner spring core is inserted in the inner core, a groove is arranged on the outer side wall of the inner core, and a cable is arranged in the groove. And the outer side of the cable is sleeved with an inner ring rubber ring. The outer side of the inner ring rubber ring is sleeved with a plastic layer, an outer spring ring is arranged on the outer side of the inner ring rubber ring, and the outer spring ring is arranged between the inner ring rubber ring and the plastic layer. And the outer side of the plastic layer is sleeved with a crosslinked polyethylene layer. The outer spring ring and the inner spring core are both spiral. The technical problem that the normal use of the cable is affected and economic loss is caused due to the fact that the cable is often impacted during transportation and the cable is damaged and broken under a serious condition is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable protection, in particular to a HDPE plastic pipe for electric wires and cables. Background Art

[0002] DPE (High-Density Polyethylene) plastic pipe for wires and cables is made from high-density polyethylene (HDPE), specifically designed for protecting wires and cables. HDPE is a highly crystalline, non-polar thermoplastic resin with excellent electrical properties, particularly high dielectric strength, making it ideal for protecting wires and cables. HDPE pipe offers excellent corrosion resistance, resisting attack from a wide range of chemicals, ensuring stable operation of wires and cables in harsh environments. Medium- to high-molecular-weight HDPE pipes offer excellent impact resistance and maintain exceptional toughness even at low temperatures, effectively preventing damage to wires and cables from external impacts. HDPE pipe is lightweight, easy to handle and install, and reduces construction costs. HDPE plastic pipe for wires and cables is widely used in urban construction, burying power and communication lines and protecting cables from external influences. In highway construction, HDPE cable protection pipe is used to protect communication lines and power supply systems along the route, ensuring traffic safety and smooth communication. In industrial and mining enterprises, HDPE cable protection pipe is used to protect cables and ensure the normal operation of production equipment. Its corrosion resistance, pressure resistance, and impact resistance are particularly important in industries such as petrochemicals, coal mining, metal smelting, and electronics manufacturing. Water pumping stations, reservoirs, flood control projects and other facilities in water conservancy projects require a large number of cables for monitoring and control. HDPE cable protection pipes can effectively protect these cables and ensure the normal operation of water conservancy facilities.

[0003] Upon searching, the patent document (authorization announcement number CN206075886U) includes a polyethylene insulation layer, three conductors are covered by the polyethylene insulation layer, a metal shielding layer is provided on the outside of the polyethylene insulation layer, a flame retardant layer is provided on the outside of the metal shielding layer, and a polyvinyl chloride insulation layer is provided on the outside of the flame retardant layer; an isolation plastic is provided inside the polyethylene insulation layer, the isolation plastic isolates the three conductors respectively, the isolation plastic is connected to the inner wall of the polyethylene insulation layer, and a conductive paint is provided inside the isolation plastic, and the conductive paint is located between the three conductors. The utility model forms an electromagnetic shield by providing conductive paint inside the isolation plastic, so that adjacent conductors will not be affected by electromagnetic interference, and the wires and cables can be used normally; and there is no need to additionally cover the conductors with insulating material, which effectively reduces material usage and reduces costs.

[0004] However, the above device still has shortcomings:

[0005] During transportation, cables are often hit, and in severe cases, they may be damaged, causing them to break, thus affecting their normal use and causing economic losses. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a HDPE plastic pipe for electric wires and cables, which solves the problem that cables are often subject to impact during transportation, which in severe cases can damage the cables, causing them to break and break, thereby affecting their normal use and causing economic losses.

[0007] To achieve the above purpose, the utility model proposes an HDPE wire and cable plastic tube, comprising an inner core, an inner spring core inserted into the inner core, a groove formed on the outer wall of the inner core, and a cable arranged inside the groove.

[0008] Preferably, the outer side of the cable is sleeved with an inner rubber ring.

[0009] Preferably, a plastic layer is sleeved on the outer side of the inner rubber ring, an outer spring ring is provided on the outer side of the inner rubber ring, and the outer spring ring is provided between the inner rubber ring and the plastic layer.

[0010] Preferably, a cross-linked polyethylene layer is sleeved on the outer side of the plastic layer.

[0011] Preferably, the outer spring coil and the inner spring core are both helical.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Use a threaded inner spring core as the inner core of the cable. When the cable is subjected to external pressure, the inner spring core has a certain degree of contractility, which can play a buffering role, thereby reducing external impact and protecting the safety of the cable to the greatest extent possible.

[0014] The benefit of this design is that it cushions external impacts, reducing the risk of cable damage from direct force, thereby improving overall cable safety. Over long-term use, cables are inevitably subject to various external forces. The retractable inner spring core effectively resists these forces, extending the cable's service life. This enhanced cable protection reduces the frequency of repairs required due to external damage, thereby reducing the maintenance burden.

[0015] 2. The outer spring coil is threaded. This design increases the cable's external surface area, dispersing pressure from external friction, reducing wear and tear, and thus extending the cable's service life. Furthermore, the threaded structure provides a certain degree of elasticity. When the cable is subjected to external pressure, it absorbs and disperses the pressure, preventing the cable from being crushed or damaged. The threaded design makes the cable more flexible when bent and less likely to break. This is particularly important for cables that need to be laid in complex environments, such as curved pipes and narrow spaces.

[0016] Moreover, when the cable bends, the threaded design can disperse the bending stress and reduce stress concentration, thereby protecting the conductor and insulation layer inside the cable from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the inner core structure of the present utility model.

[0020] In the figure: 1, inner core; 101, groove; 102, inner spring core; 2, cable; 3, inner rubber ring; 4, plastic layer; 5, cross-linked polyethylene layer; 6, outer spring ring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, a HDPE wire and cable plastic tube includes an inner core 1, and an inner spring core 102 is inserted into the inner core 1. The threaded inner spring core 102 serves as the inner core of the cable 2. When the cable 2 is subjected to external pressure, the inner spring core 102 has a certain degree of contractility and can play a buffering role, thereby reducing external impact and protecting the safety of the cable 2 to a greater extent.

[0023] By buffering external impacts, the risk of cable 2 being damaged by direct force is reduced, thereby improving the overall safety of cable 2. During long-term use, cable 2 is inevitably affected by various external forces. The contractile inner spring core 102 effectively resists these external forces, extending the service life of cable 2. Due to the enhanced protection provided to cable 2, the frequency of repairs required due to external damage is reduced, thereby reducing the maintenance burden.

[0024] The outer wall of the inner core 1 is provided with a groove 101, and a cable 2 is arranged inside the groove 101. An inner rubber ring 3 is sleeved on the outer side of the cable 2. A plastic layer 4 is sleeved on the outer side of the inner rubber ring 3, and an outer spring ring 6 is arranged on the outer side of the inner rubber ring 3. The outer spring ring 6 is threaded. The threaded design increases the surface area of ​​the outer side of the cable 2, so that the cable 2 can disperse pressure and reduce wear when subjected to external friction, thereby extending the service life of the cable 2. Secondly, the threaded structure has a certain degree of elasticity. When the cable 2 is subjected to external pressure, it can absorb and disperse the pressure, preventing the cable 2 from being flattened or damaged. The threaded design makes the cable 2 more flexible when bent and less likely to break. This is particularly important for cables 2 that need to be laid in complex environments, such as curved pipes, narrow spaces, etc.

[0025] Furthermore, when the cable 2 is bent, the threaded design can disperse the bending stress and reduce stress concentration, thereby protecting the conductor and insulation layer inside the cable 2 from damage.

[0026] The outer spring coil 6 is arranged between the inner ring rubber ring 3 and the plastic layer 4. The outer side of the plastic layer 4 is sleeved with a cross-linked polyethylene layer 5. The outer spring coil 6 and the inner spring core 102 are both spiral.

[0027] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A HDPE plastic pipe for wires and cables, characterized in that: It comprises an inner core (1), an inner spring core (102) is inserted into the inner core (1), a groove (101) is provided on the outer wall of the inner core (1), and a cable (2) is arranged inside the groove (101).

2. The HDPE plastic pipe for electric wires and cables according to claim 1, characterized in that: The outer side of the cable (2) is sleeved with an inner rubber ring (3).

3. The HDPE plastic pipe for electric wires and cables according to claim 2, characterized in that: The outer side of the inner rubber ring (3) is sleeved with a plastic layer (4), the outer side of the inner rubber ring (3) is provided with an outer spring ring (6), and the outer spring ring (6) is provided between the inner rubber ring (3) and the plastic layer (4).

4. The HDPE plastic pipe for electric wires and cables according to claim 3, characterized in that: A cross-linked polyethylene layer (5) is sleeved on the outer side of the plastic layer (4).

5. The HDPE plastic pipe for electric wires and cables according to claim 3, characterized in that: The outer spring coil (6) and the inner spring core (102) are both helical.

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