Low-voltage control cable convenient to overhaul

Abstract

The utility model is suitable for the technical field of cables, and provides a low-voltage control cable convenient to maintain, which comprises an insulation maintenance part, an internal insulation part is arranged at the center of the insulation maintenance part, a plurality of groups of lead insulation parts are arranged at the center of the internal insulation part, and copper leads are arranged at the centers of the lead insulation parts. The insulation maintenance part comprises an outer insulation layer, the outer insulation layer is of a cylindrical structure, a wire placing hole is formed in the center of the outer insulation layer, a plurality of groups of maintenance holes are formed in the outer insulation layer in a surrounding mode along the center, and the wire placing hole is of a circular structure and penetrates through the outer insulation layer. The device solves the problems that the maintenance of the cable is generally performed through visual inspection by an operator or the voltage measurement of the cable wire, the damaged part is difficult to find by the operator, and when the cable at the damaged part is still in a connection state, the voltage of the cable is possibly consistent with the power supply voltage. The functions of reducing the maintenance time, improving the maintenance efficiency and improving factory benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and more specifically, it relates to a low-voltage control cable that is convenient for maintenance. Background Art

[0002] A cable is a combination of electric wires used for transmitting electric power, signals or data. It usually consists of one or more insulated wires, and is wrapped with insulating layers, sheaths and other protective materials. Among them, control cables are used to transmit control signals and control the operation of electrical equipment.

[0003] At present, the maintenance of cables generally involves visual inspection by operators or measurement of the voltage of cable wires. For problems found during maintenance, they should be dealt with in a timely manner. For example, when it is found that the outer skin of the cable is damaged, it needs to be replaced in a timely manner to ensure that the insulation performance of the cable is not affected; if there are sundries, water accumulation, etc. in the cable channel, it should also be cleaned in a timely manner to ensure the safe and reliable operation environment of the cable. However, in the actual maintenance process, some thorny problems often occur. When the damaged part of the cable is not obvious enough or is blocked by other objects, it is very difficult for operators to easily detect it. In this case, even if the operator conducts a careful visual inspection, these hidden damaged parts may be missed. In addition, when the damaged cable is still in a connected state, due to the characteristics of the circuit, the voltage of the cable at this point may be the same as the supply voltage. This brings great difficulties to the maintenance work. Such a situation will not only lead to a waste of maintenance time, but also seriously affect the restoration work of the factory, which is not conducive to the factory quickly resuming normal production and operation.

[0004] Therefore, a low-voltage control cable that is convenient for maintenance is proposed, which can reduce the maintenance time, improve the maintenance efficiency, and improve the benefits of the factory. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a low-voltage control cable that is convenient for maintenance, which can reduce the maintenance time, improve the maintenance efficiency, and improve the benefits of the factory.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A low-voltage control cable that is convenient for maintenance includes an insulating maintenance part. An internal insulating part is arranged in the center of the insulating maintenance part. A plurality of wire insulations are arranged in the center of the internal insulating part. A copper wire is arranged in the center of the wire insulation; the insulating maintenance part includes an outer insulation, the outer insulation is arranged in a cylindrical structure, a wire placement hole is opened in the center of the outer insulation, and a plurality of maintenance holes are arranged around the center of the outer insulation.

[0008] By adopting the above technical solution, the outer insulation provides overall outer insulation for the cable. The wire placement holes opened inside the outer insulation provide an installation environment for the internal insulation part, and the inspection holes provide an installation environment for the inspection copper wires.

[0009] The present utility model is further configured as: the wire placement holes are set as circular structures and penetrate through the outer insulation, and the inspection holes are set as circular structures and penetrate through the outer insulation.

[0010] The present utility model is further configured as: the diameter of the inspection holes is smaller than that of the wire placement holes, and inspection copper wires are arranged at the centers of the inspection holes. Multiple groups of the inspection copper wires are adapted to the shapes of the inspection holes.

[0011] By adopting the above technical solution, when a sharp object penetrates the outer layer of the cable or the outer layer of the cable is damaged due to long-term friction, one or more groups of the inspection copper wires are broken. The operator can check whether the cable is damaged by measuring the inspection copper wires, reducing the inspection time and improving the inspection efficiency.

[0012] The present utility model is further configured as: the internal insulation part includes an inner insulation, the inner insulation is adapted to the shape of the wire placement holes, a wire installation hole is opened at the center of the inner insulation, and the wire installation hole is set as a circular structure and penetrates through the inner insulation.

[0013] The present utility model is further configured as: multiple groups of inner inspection belts are arranged around the center of the wire installation hole, and the inner inspection belts are adapted to the shape of the wire installation hole.

[0014] The present utility model is further configured as: the wire insulation is set as a hollow structure, the copper wires are inserted inside the wire insulation, multiple groups of the wire insulation are arranged around the center of the internal insulation part, and multiple groups of the wire insulation are adapted to the shapes of the inner inspection belts.

[0015] By adopting the above technical solution, a waterproof layer is arranged between the inner insulation and the wire placement holes to prevent water from entering the cable due to damage. The inner insulation further insulates the cable. The wire installation hole provides an installation environment for multiple groups of wire insulation and copper wires. The inner inspection belts wound outside the wire insulation reduce electromagnetic interference. At the same time, when the inner inspection belts are damaged, detecting the inner inspection belts can further confirm whether the cable is damaged, resulting in the failure of the control inside the electrical cabinet.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. The outer insulation provides overall outer insulation for the cable. The wire placement holes opened inside the outer insulation provide an installation environment for the internal insulation part, and the inspection holes provide an installation environment for the inspection copper wires.

[0018] 2. When a sharp object penetrates the outer layer of the cable or the outer layer of the cable is damaged by long-term friction, one or more groups of maintenance copper wires will break. The operator can check whether the cable is damaged by measuring the maintenance copper wires, thereby reducing maintenance time and improving maintenance efficiency.

[0019] 3. A waterproof layer is set between the inner insulation and the wire hole to prevent the cable from being damaged and water ingress. The inner insulation further insulates the cable, and the wire installation hole provides an installation environment for multiple groups of wire insulation and copper wires. The inner inspection tape wrapped around the outside of the wire insulation can reduce electromagnetic interference. At the same time, when the inner inspection tape is damaged, detecting the inner inspection tape can further confirm whether the cable is damaged, causing control failure in the electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the structure of a low-voltage control cable which is easy to repair.

[0021] Figure 2 for Figure 1 Section view in the AA cutting direction.

[0022] Figure 3 It is an explosion diagram of the insulation maintenance part in the utility model.

[0023] Figure 4 It is an exploded schematic diagram of the internal insulation part, wire insulation and copper wire in the utility model.

[0024] Description of reference numerals: 1, insulation inspection part; 11, outer insulation; 12, wire placement hole; 13, inspection hole; 14, inspection copper wire;

[0025] 2. Internal insulation; 21. Inner insulation; 22. Wire installation hole; 23. Inner inspection tape;

[0026] 3. Wire insulation;

[0027] 4. Copper wire. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] For example, see Figures 1-4 , the utility model provides the following technical solutions:

[0031] Specifically, it refers to a low-voltage control cable that is convenient for maintenance. Refer to Figures 1-2 , which includes an insulation maintenance part 1. The insulation maintenance part 1 provides overall insulation and protection for the cable. At the same time, it improves the maintenance efficiency. An internal insulation part 2 is arranged in the center of the insulation maintenance part 1. The internal insulation part 2 further provides insulation protection for the cable. On the other hand, it provides inspection for the damage on the outer side of the cable. A plurality of groups of wire insulations 3 are arranged in the center of the internal insulation part 2. The wire insulations 3 insulate the internal wires of the cable. A copper wire 4 is arranged in the center of the wire insulation 3. The copper wire 4 provides connection for the wire routing between electrical cabinets and the control of equipment by the electrical cabinets.

[0032] Refer to Figure 3 , the insulation maintenance part 1 includes an outer insulation 11. The outer insulation 11 is arranged in a cylindrical structure. A wire placement hole 12 is opened in the center of the outer insulation 11. The wire placement hole 12 is arranged in a circular structure and penetrates through the outer insulation 11. A plurality of groups of maintenance holes 13 are arranged around the center of the outer insulation 11. The maintenance holes 13 are arranged in a circular structure and penetrate through the outer insulation 11. The diameter of the maintenance hole 13 is smaller than that of the wire placement hole 12. A maintenance copper wire 14 is arranged in the center of the maintenance hole 13. The plurality of groups of maintenance copper wires 14 are adapted to the shape of the maintenance holes 13.

[0033] Specifically, the outer insulation 11 provides insulation for the whole cable. The wire placement hole 12 opened inside the outer insulation 11 provides an installation environment for the internal insulation part 2. The maintenance hole 13 provides an installation environment for the maintenance copper wire 14. When a sharp object pierces the outer layer of the cable or the outer layer of the cable is damaged by long-term friction, one or more groups of maintenance copper wires 14 are broken. The operator can check whether the cable is damaged by measuring the maintenance copper wire 14, reducing the maintenance time and improving the maintenance efficiency.

[0034] Refer to Figure 4 , the internal insulation part 2 includes an inner insulation 21. The inner insulation 21 is adapted to the shape of the wire placement hole 12. A wire installation hole 22 is opened in the center of the inner insulation 21. The wire installation hole 22 is arranged in a circular structure and penetrates through the inner insulation 21. A plurality of groups of inner maintenance bands 23 are arranged around the center of the wire installation hole 22. The inner maintenance bands 23 are adapted to the shape of the wire installation hole 22. The wire insulation 3 is arranged in a hollow structure. The copper wire 4 is inserted inside the wire insulation 3. The plurality of groups of wire insulations 3 are arranged around the center of the internal insulation part 2. The plurality of groups of wire insulations 3 are adapted to the shape of the inner maintenance bands 23.

[0035] Specifically, a waterproof layer is provided between the inner insulation 21 and the wire placement hole 12 to prevent water ingress due to cable damage. The inner insulation 21 further insulates the cable. The wire installation holes 22 provide an installation environment for multiple groups of wire insulations 3 and copper wires 4. The inner inspection tape 23 wound around the outer side of the wire insulation 3 reduces electromagnetic interference. At the same time, when the inner inspection tape 23 is damaged, detecting the inner inspection tape 23 can further confirm whether cable damage has caused control failure inside the electric cabinet.

[0036] The working principle of a low-voltage control cable device facilitating maintenance provided by the present utility model is as follows:

[0037] When a break or fracture occurs in the middle of the cable, an operator can apply a power supply with a relatively low voltage, such as a DC power supply of 5, 12, or 24 volts, to the inspection copper wire 14 and the inner inspection tape 23 at one end of the cable. After one end of the inspection copper wire 14 is energized, the operator uses a multimeter to measure the voltage at the other side. If there is an error or inconsistency in the measured voltage values on the inner inspection tape 23 and the inspection copper wire 14, the cable is broken. If the value of the inner inspection tape 23 is correct and the value of the inspection copper wire 14 is incorrect or inconsistent, the outer layer is damaged.

[0038] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. 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.

Claims

1. A low-voltage control cable that is easy to maintain, characterized in that: It comprises an insulation inspection part (1), wherein an internal insulation part (2) is arranged at the center of the insulation inspection part (1), wherein a plurality of groups of wire insulation (3) are arranged at the center of the internal insulation part (2), and wherein a copper wire (4) is arranged at the center of the wire insulation (3); The insulation inspection part (1) comprises an outer insulation layer (11), the outer insulation layer (11) is arranged in a cylindrical structure, a wire placement hole (12) is provided at the center of the outer insulation layer (11), and a plurality of inspection holes (13) are provided around the center of the outer insulation layer (11).

2. A low-voltage control cable that is easy to maintain according to claim 1, characterized in that: The wire placement hole (12) is arranged in a circular structure and is arranged through the outer insulation layer (11); the inspection hole (13) is arranged in a circular structure and is arranged through the outer insulation layer (11).

3. A low-voltage control cable that is easy to maintain according to claim 2, characterized in that: The diameter of the inspection hole (13) is smaller than that of the wire placement hole (12), a copper wire for inspection (14) is arranged at the center of the inspection hole (13), and a plurality of groups of the copper wires for inspection (14) are adapted to the shape of the inspection hole (13).

4. The low-voltage control cable that is easy to maintain according to claim 1 is characterized in that: The internal insulation part (2) comprises an inner insulation layer (21), the inner insulation layer (21) is adapted to the shape of the wire placement hole (12), a wire installation hole (22) is provided at the center of the inner insulation layer (21), and the wire installation hole (22) is arranged in a circular structure and penetrates the inner insulation layer (21).

5. The low-voltage control cable that is easy to maintain according to claim 4 is characterized in that: A plurality of groups of inner layer repair belts (23) are arranged around the center of the wire installation hole (22), and the inner layer repair belts (23) are adapted in shape to the wire installation hole (22).

6. The low-voltage control cable that is easy to maintain according to claim 5 is characterized in that: The wire insulation (3) is configured as a hollow structure, the copper wire (4) is inserted into the wire insulation (3), a plurality of groups of the wire insulation (3) are arranged around the center of the internal insulation portion (2), and the plurality of groups of the wire insulation (3) are adapted to the shape of the inner layer repair tape (23).

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