Low-temperature-resistant high-bendability cable

Abstract

The utility model discloses a low temperature resistant high bendability cable, which relates to the technical field of cables, and comprises a cable core, a heat insulation layer is fixedly installed on the outer side of the cable core, an insulation layer is fixedly installed on the outer side of the heat insulation layer, a connecting column is fixedly installed on the outer side of the insulation layer, and a reinforcing layer is fixedly installed on the outer side of the connecting column. A heating wire is mounted on the outer side of the insulating layer in a sleeving manner; the heat insulation layer is arranged outside the wire core, damage to the wire core caused by low temperature is reduced, the insulation layer is arranged outside the heat insulation layer, the insulation performance of the cable is improved, the reinforcing layer is arranged outside the insulation layer through the connecting columns, the strength of the cable is improved, the grooves are formed in the outer side of the reinforcing layer, the reinforcing layer can be bent along the grooves, and the reinforcing layer is prevented from cracking due to bending. And the heating wire is arranged on the outer side of the insulating layer, is connected with an external power supply and is discontinuously opened, so that the cable is prevented from being frozen due to low temperature in a heating manner, and the low-temperature resistance of the cable is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable wires, and particularly relates to a low-temperature-resistant and highly bendable cable wire. Background Technique

[0002] A cable wire is usually a cable similar to a rope formed by stranding several or several groups of wires. Each group of wires is insulated from each other and is often twisted around a center. The whole is wrapped with a highly insulating covering layer. The cable wire has the characteristics of conducting electricity inside and being insulated outside.

[0003] When used in a low-temperature environment, the conductor material in the cable wire may freeze, causing the cable wire to become brittle and easily break. Moreover, low temperature will cause the insulating material in the cable wire to become brittle, prone to cracking and breaking, thus affecting the electrical performance of the cable wire.

[0004] According to the search, the Chinese patent document, publication number: CN215577781U, discloses a low-temperature-resistant three-core super-flexible cable. By using a rubber support to support the cable cores, the three groups of cable cores can be separated at the same time, which can increase the compressive resistance of the cable and reduce the electromagnetic influence between the three groups of cores. And it can improve the traction ability of the cable in the later stage without affecting the flexibility of the cable cores, which is more practical. Through the filling design of the fiberglass body in the filling layer, it can fix the cable cores and improve the temperature isolation of the cable cores. However, this cable only resists the influence caused by low temperature by setting a low-temperature-resistant layer, and the low-temperature resistance performance cannot be further improved. Moreover, when bent, the cable may crack due to bending. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-temperature-resistant and highly bendable cable wire to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A low-temperature-resistant and highly bendable cable wire, including a core, an insulating layer is fixedly installed on the outside of the core, a connection column is fixedly installed on the outside of the insulating layer, a reinforcing layer is fixedly installed on the outside of the connection column, a heating wire is sleeved on the outside of the insulating layer, a groove is opened on the outside of the reinforcing layer, and a sheath is fixedly installed on the outside of the reinforcing layer.

[0007] Preferably, the insulating layer is a glass wool insulating layer.

[0008] Preferably, the insulating layer is an ethylene propylene rubber insulating layer, and the thickness of the insulating layer is the same as that of the insulating layer.

[0009] Preferably, a plurality of connecting columns are provided, the thickness of the reinforcing layer is greater than that of the insulating layer, and a plurality of grooves are provided.

[0010] Preferably, the heating wire is spirally wound around the outside of the insulating layer.

[0011] Preferably, the reinforcing layer is a polyethylene reinforcing layer, and a plurality of grooves are provided.

[0012] Preferably, the sheath is a nylon sheath, and the thickness of the sheath is the same as that of the insulating layer.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model provides a heat insulation layer outside the wire core to reduce the damage caused by low temperature to the wire core. An insulating layer is provided outside the heat insulation layer to improve the insulation of the cable. A reinforcing layer is provided outside the insulating layer through connecting columns to improve the strength of the cable. Grooves are opened outside the reinforcing layer, and the reinforcing layer can be bent along the grooves to prevent the reinforcing layer from cracking due to bending, thereby improving the bending resistance of the cable;

[0015] 2. The present utility model provides a heating wire outside the insulating layer, which is connected to an external power supply and intermittently turned on. By heating, the cable is prevented from being frozen due to low temperature, effectively improving the low-temperature resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 is a three-dimensional structural schematic diagram of the insulating layer of the present utility model;

[0018] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0019] Figure 4 is the present utility model Figure 3 magnified structural schematic diagram at A in.

[0020] Wherein: 1. Wire core; 2. Heat insulation layer; 3. Insulating layer; 4. Connecting column; 5. Reinforcing layer; 6. Heating wire; 7. Groove; 8. Sheath. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Example 1

[0023] Please refer to Figure 1 , in the figure, there is a low-temperature-resistant and highly bendable cable, including a wire core 1. An insulating layer 2 is fixedly installed on the outer side of the wire core 1. An insulating layer 3 is fixedly installed on the outer side of the insulating layer 2. A connecting column 4 is fixedly installed on the outer side of the insulating layer 3. A reinforcing layer 5 is fixedly installed on the outer side of the connecting column 4. A heating wire 6 is sleeved and installed on the outer side of the insulating layer 3. A groove 7 is formed on the outer side of the reinforcing layer 5. A sheath 8 is fixedly installed on the outer side of the reinforcing layer 5.

[0024] Please refer to Figure 4 , the insulating layer 2 is a glass wool insulating layer.

[0025] In this embodiment: The insulating layer 2 made of glass wool has good heat insulation performance under both high and low temperature conditions, low thermal conductivity, good resilience, good processing performance, and reduces the damage caused by low temperature to the wire core 1.

[0026] Please refer to Figure 4 , the insulating layer 3 is an ethylene-propylene rubber insulating layer, and the thickness of the insulating layer 3 is the same as that of the insulating layer 2.

[0027] In this embodiment: The insulating layer 3 made of ethylene-propylene rubber has excellent electrical insulation performance and corona resistance, improving the insulation of the cable.

[0028] Please refer to Figure 2 , there are multiple connecting columns 4, the thickness of the reinforcing layer 5 is greater than that of the insulating layer 3, and there are multiple grooves 7.

[0029] In this embodiment: The connecting column 4 plays a supporting role between the insulating layer 3 and the reinforcing layer 5. The reinforcing layer 5 can be bent along the groove 7 to prevent the reinforcing layer 5 from cracking due to bending, improving the bend resistance of the cable.

[0030] Please refer to Figure 2 , the heating wire 6 is spirally wound around the outer side of the insulating layer 3.

[0031] In this embodiment: The heating wire 6 is connected to an external power supply and is intermittently turned on to avoid cable freezing by heating.

[0032] Working principle: An insulating layer 2 made of glass wool is provided outside the conductor core 1, which has good heat insulation performance under both high and low temperature conditions, low thermal conductivity, good resilience, and good processing performance, reducing the damage caused by low temperature to the conductor core 1. An insulating layer 3 made of ethylene-propylene rubber is provided outside the insulating layer 2, which has excellent electrical insulation performance and corona resistance, improving the insulation of the cable. A reinforcing layer 5 made of polyethylene is provided outside the insulating layer 3 through connecting columns 4, which is resistant to chemical corrosion and has high mechanical strength, improving the strength of the cable. A sheath 8 made of nylon is provided outside the reinforcing layer 5, which has high mechanical strength, good abrasion resistance, excellent high-temperature resistance, and strong chemical erosion resistance, further improving the safety performance of the cable. A heating wire 6 is provided outside the insulating layer 3 and is connected to an external power supply, which is intermittently turned on. By heating, the cable is prevented from freezing, improving the low-temperature resistance of the cable. Grooves 7 are provided on the outside of the reinforcing layer 5, and the reinforcing layer 5 can be bent along the grooves 7, preventing the reinforcing layer 5 from cracking due to bending and improving the bending resistance of the cable.

[0033] Embodiment 2

[0034] Please refer to Figure 4 , the reinforcing layer 5 is a polyethylene reinforcing layer, and a plurality of grooves 7 are provided.

[0035] In this embodiment: The reinforcing layer 5 made of polyethylene is resistant to chemical corrosion and has high mechanical strength, improving the strength of the cable.

[0036] Please refer to Figure 4 , the sheath 8 is a nylon sheath, and the thickness of the sheath 8 is the same as that of the insulating layer 3.

[0037] In this embodiment: The sheath 8 made of nylon has high mechanical strength, good abrasion resistance, excellent high-temperature resistance, and strong chemical erosion resistance, further improving the safety performance of the cable.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including" - "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process - method - article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process - method - article or device.

[0039] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A low temperature resistant and highly flexible cable, comprising a core (1), characterized in that: A heat insulation layer (2) is fixedly mounted on the outer side of the wire core (1), an insulating layer (3) is fixedly mounted on the outer side of the heat insulation layer (2), a connecting column (4) is fixedly mounted on the outer side of the insulating layer (3), a reinforcing layer (5) is fixedly mounted on the outer side of the connecting column (4), a heating wire (6) is sleeved and mounted on the outer side of the insulating layer (3), a groove (7) is provided on the outer side of the reinforcing layer (5), and a sheath (8) is fixedly mounted on the outer side of the reinforcing layer (5).

2. A low temperature resistant and highly flexible cable according to claim 1, characterized in that: The heat insulation layer (2) is a glass wool heat insulation layer.

3. The low temperature resistant and highly flexible cable according to claim 1, characterized in that: The insulating layer (3) is an ethylene propylene rubber insulating layer, and the thickness of the insulating layer (3) is the same as the thickness of the heat insulation layer (2).

4. The low temperature resistant and highly flexible cable according to claim 1, characterized in that: A plurality of the connecting pillars (4) are provided, the thickness of the reinforcing layer (5) is greater than the thickness of the insulating layer (3), and a plurality of the grooves (7) are provided.

5. The low temperature resistant and highly flexible cable according to claim 1, characterized in that: The heating wire (6) is spirally wound around the outer side of the insulating layer (3).

6. The low temperature resistant and highly flexible cable according to claim 1, characterized in that: The reinforcement layer (5) is a polyethylene reinforcement layer, and a plurality of grooves (7) are provided.

7. The low temperature resistant and highly flexible cable according to claim 1, characterized in that: The sheath (8) is a nylon sheath, and the thickness of the sheath (8) is the same as the thickness of the insulating layer (3).

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