Environment-friendly extruded insulation low-voltage power cable

Abstract

The utility model relates to the technical field of cables, and discloses an environment-friendly extruded insulation low-voltage power cable, which comprises a protective frame and an installation strip arranged on one side of the protective frame, and further comprises a filling shell fixed on the surface of the protective frame, a wire core is installed in an inner cavity of the filling shell, a clamping ball is embedded in the protective frame, and a clamping groove is formed in the clamping ball. The surface of the protective frame is fixedly connected with a connecting sleeve; according to the utility model, the wear resistance of the cable can be effectively improved through the wear-resistant layer, so that the service life of the cable is prolonged, and the applicability of the cable can be improved under the cooperation of the tensile layer and the high-temperature-resistant layer, so that the cable can be applied to more scenes; meanwhile, under the action of the protection frame and the clamping balls, the situation that the cable is excessively bent can be prevented, the situation that the cable cores make contact with one another is avoided, the service life of the cable is effectively prolonged, the safety of the cable is effectively improved, and the problems that an existing cable is poor in abrasion resistance and prone to being excessively bent in the using process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an environmentally friendly extruded insulated low-voltage power cable. Background Art

[0002] Extruded insulated cable, also known as rubber-plastic cable, is a power cable with high molecular polymer as insulation. Extruded insulated power cable is divided into copper conductor and aluminum conductor based on the conductor. Insulation materials are divided into three categories, one is polyvinyl chloride insulation, one is cross-linked polyethylene insulation, and the other is ethylene propylene rubber insulation. Low-voltage power cables are widely used and face various environments and usage requirements, and have high performance requirements, such as good electrical performance, waterproof performance, corrosion resistance, and weather resistance.

[0003] When the existing cables are in use, most of them use PVC material to protect the wire core. However, the existing PVC material has poor wear resistance. When the cable rubs against objects during use, the PVC material is easily damaged, which easily causes the wire core to be exposed to the air, thereby causing the cable to be easily damaged, reducing the service life of the cable;

[0004] At the same time, the existing cables have good bending properties and are prone to excessive bending during use, which can cause the wire cores to contact each other or the wire cores to break, which not only affects normal use but is also more dangerous when the cable is energized. Utility Model Content

[0005] The utility model aims to provide an environmentally friendly extruded insulated low-voltage power cable to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an environmentally friendly extruded insulated low-voltage power cable, comprising a protective frame and a mounting strip arranged on one side thereof, and also comprising:

[0007] A filling shell is fixed to the surface of the protective frame, a wire core is installed in the inner cavity of the filling shell, a positioning ball is embedded in the interior of the protective frame, and a connecting sleeve is fixedly connected to the surface of the protective frame;

[0008] The anti-compression strip is embedded in the surface of the connecting sleeve, the surface of the connecting sleeve is provided with a PVC layer, the surface of the PVC layer is provided with an anti-stretching layer, the surface of the anti-stretching layer is provided with a high-temperature resistant layer, and the surface of the high-temperature resistant layer is provided with a wear-resistant layer.

[0009] Preferably, the protective frame is cross-shaped and is used in conjunction with the wire core.

[0010] Preferably, there are a plurality of the retaining balls, which are distributed in a ring array at the center of the protective frame.

[0011] Preferably, the inner wall of the anti-stretching layer is fixedly connected to the surface of the PVC layer, and the material of the anti-stretching layer is polyetherketone.

[0012] Preferably, the inner wall of the high temperature resistant layer is fixedly connected to the surface of the anti-stretching layer, and the high temperature resistant layer is made of polyimide material.

[0013] Preferably, the inner wall of the wear-resistant layer is fixedly connected to the surface of the high-temperature resistant layer, and the wear-resistant layer is made of polyurethane.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can effectively improve the wear resistance of the cable through the wear-resistant layer, thereby increasing the service life of the cable; and with the cooperation of the anti-tensile layer and the high temperature resistant layer, the applicability of the cable can be improved, so that the cable can be used in more scenarios, and at the same time, under the action of the protective frame and the locking ball, the cable can be prevented from excessive bending, and the wire cores can be prevented from contacting each other, effectively improving the service life and safety of the cable, and solving the problem that the existing cables have poor wear resistance and are prone to excessive bending when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional unfolded structure in the utility model;

[0018] Figure 3 It is a schematic diagram of a partial three-dimensional cross-section structure of the present utility model;

[0019] Figure 4 It is a front view structural schematic diagram of the present utility model.

[0020] In the figure: 1. Protective frame; 2. Mounting strip; 3. Filling shell; 4. Wire core; 5. Positioning ball; 6. Connecting sleeve; 7. Compression strip; 8. PVC layer; 9. Anti-tensile layer; 10. High temperature resistant layer; 11. Wear-resistant layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4As shown, an environmentally friendly extruded insulated low-voltage power cable includes a protective frame 1, a mounting strip 2 is arranged on one side of the protective frame 1, the other end of the mounting strip 2 penetrates into the interior of the protective frame 1 and is fixedly connected to the inner wall of the penetration point, the mounting strip 2 is designed with a resilient material, under which the protective frame 1 can be positioned so that the protective frame 1 can return to its initial shape after deformation, thereby avoiding the cable being in a bent state for a long time and causing damage, a filling shell 3 is fixedly connected to the surface of the protective frame 1, a wire core 4 is installed in the inner cavity of the filling shell 3, the wire core 4 can be protected by the filling shell 3, and each wire core 4 can be separated by the shape of the protective frame 1, thereby avoiding the wire core 4 from overlapping each other and causing damage, and The shape of the protective frame 1 can improve the compression resistance of the cable. The protective frame 1 is a cross-shaped design. The protective frame 1 is used in conjunction with the wire core 4. Under this effect, each wire core 4 can be effectively isolated separately. A retaining ball 5 is embedded in the interior of the protective frame 1. The number of retaining balls 5 is several. The retaining balls 5 are distributed in a ring array at the center of the protective frame 1. Under the effect of the number, after the cable is excessively bent, the retaining balls 5 and the retaining balls 5 can squeeze each other, so that the cable cannot be bent again, thereby avoiding excessive bending of the cable. A connecting sleeve 6 is fixedly connected to the surface of the protective frame 1, and the inner wall of the connecting sleeve 6 is fixedly connected to the surface of the filling shell 3. Under this effect, the connecting sleeve 6 can be made more stable, and the surface of the connecting sleeve 6 An anti-compression strip 7 is embedded, and the number of the anti-compression strips 7 is several, and they are distributed in a ring array at the center of the protective frame 1. Under this effect, the extrusion resistance of the cable can be further improved, thereby improving the service life of the cable. The surface of the connecting sleeve 6 is provided with a PVC layer 8, and the inner wall of the PVC layer 8 is fixedly connected to the surface of the anti-compression strip 7. Under the action of the anti-compression strip 7, the surface of the connecting sleeve 6 can be made uneven, so that the connection between the PVC layer 8 and the connecting sleeve 6 is more stable. The PVC layer 8 can protect the internal structure and prevent foreign objects from easily affecting the wire core 4. The surface of the PVC layer 8 is provided with an anti-stretching layer 9, and the inner wall of the anti-stretching layer 9 is fixedly connected to the surface of the PVC layer 8. The material of the anti-stretching layer 9 is polyether ketone. This material has high strength, high rigidity and high toughness, and can withstand greater mechanical stress and impact, so as to protect its internal structure, thereby improving the tensile resistance and service life of the cable. The surface of the tensile resistance layer 9 is provided with a high temperature resistant layer 10, and the inner wall of the high temperature resistant layer 10 is fixedly connected to the surface of the tensile resistance layer 9. The high temperature resistant layer 10 is designed with a polyimide material, which has significant high temperature resistance and can withstand temperatures as high as 400°C or above. The long-term use temperature range is between 200-300°C. In addition, polyimide also has high insulation performance, and its dielectric constant and dielectric loss are maintained at a low level. The surface of the high temperature resistant layer 10 is provided with a wear-resistant layer 11, and the inner wall of the wear-resistant layer 11 is fixedly connected to the surface of the high temperature resistant layer 10.The wear-resistant layer 11 is made of polyurethane, which has good wear resistance, is non-toxic and tasteless, and is an excellent environmentally friendly material. The wear-resistant layer 11 has good wear resistance, so that the cable will not be easily damaged when rubbing against the ground or other objects, thereby effectively improving the service life of the cable. The wear-resistant layer 11 also has good resilience and shock absorption, and can effectively improve the compression resistance of the cable, thereby improving the service life of the cable.

[0023] It is worth noting that the technical features such as the filling shell 3 and the wire core 4 proposed in this technical solution should be regarded as the prior art. The specific structure, working principle and possible control method and spatial arrangement method of these technical features can be selected according to the conventional methods in the field, and this technical solution will not be further elaborated.

[0024] Working principle: First, when the cable is moved, the wear-resistant layer 11 on its surface can effectively improve the wear resistance of the cable, and with the cooperation of the high temperature resistant layer 10 and the anti-tensile layer 9, the applicability of the cable is effectively improved, thereby improving the service life of the cable. When the cable is excessively bent, the locking balls 5 and the locking balls 5 will squeeze each other, so that the cable will not be excessively bent. With the cooperation of the mounting strip 2 and the locking balls 5, the cable can automatically return to its original position after being bent, thereby avoiding the cable from being damaged by long-term bending, and further improving the service life of the cable.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly extruded insulated low-voltage power cable, comprising a protective frame (1) and a mounting strip (2) arranged on one side thereof, characterized in that: Also includes: A filling shell (3) is fixed to the surface of the protection frame (1), a wire core (4) is installed in the inner cavity of the filling shell (3), a retaining ball (5) is embedded in the interior of the protection frame (1), and a connecting sleeve (6) is fixedly connected to the surface of the protection frame (1); An anti-compression strip (7) is embedded in the surface of a connecting sleeve (6); the surface of the connecting sleeve (6) is provided with a PVC layer (8); the surface of the PVC layer (8) is provided with an anti-stretching layer (9); the surface of the anti-stretching layer (9) is provided with a high-temperature resistant layer (10); and the surface of the high-temperature resistant layer (10) is provided with a wear-resistant layer (11).

2. The environmentally friendly extruded insulated low-voltage power cable according to claim 1, characterized in that: The protective frame (1) is cross-shaped and is used in conjunction with the wire core (4).

3. The environmentally friendly extruded insulated low-voltage power cable according to claim 1, characterized in that: The number of the retaining balls (5) is several, and the retaining balls (5) are distributed in a ring array at the center of the protection frame (1).

4. The environmentally friendly extruded insulated low-voltage power cable according to claim 1, characterized in that: The inner wall of the anti-stretching layer (9) is fixedly connected to the surface of the PVC layer (8), and the material of the anti-stretching layer (9) is polyether ketone.

5. The environmentally friendly extruded insulated low-voltage power cable according to claim 1, characterized in that: The inner wall of the high temperature resistant layer (10) is fixedly connected to the surface of the anti-stretching layer (9), and the high temperature resistant layer (10) is made of polyimide material.

6. The environmentally friendly extruded insulated low-voltage power cable according to claim 1, characterized in that: The inner wall of the wear-resistant layer (11) is fixedly connected to the surface of the high-temperature resistant layer (10), and the wear-resistant layer (11) is made of polyurethane.

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