Flexible flame-retardant high-temperature-resistant special cable for industrial construction

Abstract

The utility model relates to the technical field of cables, and provides a flexible flame-retardant high-temperature-resistant special cable for industrial construction, which comprises a cable core, the outer side of the cable core is provided with a first coating layer and a second coating layer in a layered manner, the second coating layer is located at the outer layer position, the outer side of the first coating layer is provided with a heat insulation pad used for isolating external heat, and the outer side of the second coating layer is provided with a heat insulation layer. A steel wire rope used for replacing a cable core to bear external pulling acting force is arranged on the outer side of the heat insulation pad, a positioning frame is arranged on the outer side of the heat insulation pad in a segmented mode, and a convex ring belt used for reducing cable dragging difficulty is arranged on the outer side of the positioning frame. According to the replaceable dragging assembly provided by the utility model, a cable can be suspended, the contact range of an outer skin and external ground or equipment and the like can be reduced, meanwhile, the resistance of the cable during dragging can be reduced, different dragging operations can be conveniently carried out on the cable, and then the mechanism can be conveniently assembled and disassembled for treatment and use such as maintenance and the like; and normal use of the function is maintained.

Description

Technical Field

[0001] The utility model relates to the field of cables, and more specifically, to a flexible flame-retardant and high-temperature resistant special cable for industrial construction. Background Art

[0002] In industrial construction, flexible flame-retardant and high-temperature resistant special cables are widely used. They can be used to connect various sensors, actuators and control systems to achieve efficient operation of automated production lines; they can also be used to connect new energy equipment such as solar power generation systems and wind power plants to ensure stable energy delivery.

[0003] At present, most of the existing special cables are thick, which makes the cables heavy and difficult to move. However, in industrial construction equipment, the equipment is not fixed, which causes the cables to be frequently pulled and moved, resulting in a large amount of friction between the outer skin and the ground and external mechanisms, which is very easy to tear and affect the service life of the cable;

[0004] In order to solve the above problems, this application proposes a flexible flame-retardant and high-temperature resistant special cable for industrial construction. Utility Model Content

[0005] The purpose of the present invention is to provide a flexible flame-retardant and high-temperature resistant special cable for industrial construction to solve the problems in the prior art.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A flexible flame-retardant and high-temperature resistant special cable for industrial construction, comprising a cable core, wherein the outer side of the cable core is layered with a first coating layer and a second coating layer, the second coating layer is located at the outer position, the outer side of the first coating layer is provided with an insulation pad for isolating external heat, the outer side of the insulation pad is provided with a steel wire rope for replacing the cable core to bear the external pulling force, the outer side of the insulation pad is segmentedly provided with a positioning frame, the outer side of the positioning frame is provided with a convex ring belt for reducing the difficulty of cable dragging, the inner side of the adjacent outer side of the convex ring belt is installed with a ball for reducing friction resistance, the convex ring belt is also used to support the cable in sections to make it suspended in the air to reduce the wear contact surface, and more preferably, the steel wire rope is also used to reduce the pulling force on the cable core when the cable is pulled, to protect the cable core from being broken by strong pulling.

[0008] Preferably, a spacer is provided on the outer side of the positioning frame, and the convex ring belt is installed on the outer side of the positioning frame after the spacer is peeled off. More preferably, the spacer is a detachable structure, and the convex ring belt is easy to install and use by peeling it off to expose the internal space.

[0009] Preferably, rubber hemispheres are installed in sections on the outer side of the steel wire rope, and the rubber hemispheres are used to locate the installation position of the positioning frame. More preferably, the rubber hemispheres are also used to increase the contact area between the steel wire rope and the extruded material, thereby improving its stability when being pulled.

[0010] Preferably, a positioning groove for docking the steel wire rope is opened on the outer side of the thermal insulation pad, and the steel wire rope is inserted into the positioning groove to extrude the thermal insulation pad inward to form a circular covered cable core. More preferably, the steel wire rope and the thermal insulation pad are both rolled up in an external storage mechanism and placed outside the cable core to form an assembly during production.

[0011] Preferably, a hollow cavity is opened near the outer side of the positioning frame, and a convex pad for engaging with the hollow cavity is provided on the inner side of the convex ring belt. More preferably, the convex pad is inserted into the interior of the hollow cavity and is squeezed by it, thereby utilizing the reverse force to enhance the installation stability of the convex ring belt.

[0012] Preferably, a plug for docking the rubber hemisphere is provided on the inner side of the positioning frame, and a slot for the plug to engage with the rubber hemisphere is provided on the outer side of the rubber hemisphere. More preferably, the plug is also used to increase friction resistance to prevent looseness during transportation.

[0013] Preferably, protruding bosses are provided at both ends of the hollow cavity.

[0014] Preferably, protruding rubber strips are provided at both ends of the convex pad, and the upper end of the rubber strip is a rectangular structure connected to the inner wall of the convex ring belt. More preferably, the rubber strip will automatically expand outward after being squeezed.

[0015] Preferably, a limiting groove for the rubber strip to be snap-connected is provided inside the boss. More preferably, the limiting groove is automatically connected and fixed after being filled with the rubber strip.

[0016] Preferably, the thermal insulation pad, steel wire rope and positioning frame are all assembled outside the transmission path of the cable core before the cable core extrusion operation.

[0017] Beneficial effects of this utility:

[0018] The utility model can support the cable in sections to make it slightly empty after adding a convex ring belt on the outside of the cable, and then use the ball to reduce the resistance during movement, so that the cable can be easily moved by manual or equipment to adjust the use position. Compared with the existing special cables, the movement resistance can be greatly reduced, the laying difficulty is reduced, the installation efficiency is improved, and the outer skin part can be effectively prevented from being torn by friction, so as to extend the service life of the cable. Finally, when encountering an open fire, the cable can be easily dragged away, so as to protect the cost and prevent the fire from spreading.

[0019] The utility model can directly sleeve the convex ring belt on the outside after peeling off the spacer, and fix it by snapping and connecting the rubber strip and the limit groove. The convex ring belt can also be directly installed on the outside of the positioning frame during the extrusion operation. After this treatment, the convex ring belt can be conveniently assembled and used according to the laying environment and work requirements of the cable, while improving the applicability of different working environments. Through this assembly and disassembly structure, it can also be conveniently repaired and replaced, etc., to ensure the long-term stability of the cable.

[0020] Based on this, the present invention proposes a replaceable towing component, which is adapted to the working environment of industrial equipment, improves the service life and stability of the cable, and reduces the difficulty of its laying and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the practical embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0023] Figure 2 Practical Figure 1 Schematic diagram of the structure of the thermal insulation pad, steel wire rope and cable core assembly;

[0024] Figure 3 Practical Figure 1 A schematic diagram of the structure of the assembly part of the positioning frame and the thermal insulation pad;

[0025] Figure 4 Practical Figure 1 A schematic diagram of the exploded structure of the convex ring belt, the positioning frame and the thermal insulation pad;

[0026] Figure 5 Practical Figure 4 A partial enlarged structural schematic diagram of part A;

[0027] Figure 6 Practical Figure 1 A schematic diagram of the structure of the connection part between the convex ring belt and the positioning frame;

[0028] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the cable of this utility model;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] In the figure: 1, cable core; 2, first coating layer; 3, second coating layer; 4, thermal insulation pad; 5, wire rope; 6, positioning frame; 7, convex ring belt; 8, ball; 9, spacer; 10, rubber hemisphere; 11, positioning groove; 12, hollow cavity; 13, plug; 14, slot; 15, convex pad; 16, boss; 17, rubber strip; 18, limit groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of this utility more clear, the utility is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility and are not used to limit this utility. Based on the embodiments in this utility, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this utility.

[0032] Please refer to Figure 1-7 A flexible flame-retardant and high-temperature resistant special cable for industrial construction, comprising a cable core 1, the outer side of the cable core 1 is layered with a first coating layer 2 and a second coating layer 3, the second coating layer 3 is located at the outer position, the outer side of the first coating layer 2 is provided with an insulation pad 4 for isolating external heat, the outer side of the insulation pad 4 is provided with a steel wire rope 5 for replacing the cable core 1 to bear the external pulling force, the outer side of the insulation pad 4 is provided with a positioning frame 6 in sections, the outer side of the positioning frame 6 is provided with a convex ring belt 7 for reducing the difficulty of dragging the point cable, when it is necessary to pull the cable, the convex ring belt 7 can be pulled to transfer the external force to the steel wire rope 5, so as to replace the cable core 1 to bear the external pulling force, the adjacent outer side of the convex ring belt 7 is installed with a ball 8 for reducing friction resistance, and the convex ring belt 7 is also used to support the cable in sections to make it suspended to reduce the wear contact surface.

[0033] Please continue reading Figure 1 : A spacer 9 is arranged on the outside of the positioning frame 6, and a small gap is opened between the two sides of the spacer 9 and the positioning frame 6 to facilitate subsequent peeling treatment. The convex ring belt 7 is installed on the outside of the positioning frame 6 after the spacer 9 is peeled off.

[0034] Please continue reading Figure 2 : The outer side of the steel wire rope 5 is installed with rubber hemispheres 10 in sections. The steel wire rope 5 and the thermal insulation pad 4 on its inner side are laid parallel to the outer side of the cable core 1 through an external positioning mechanism. After this arrangement, the extrusion production can be carried out together with the cable core 1. The rubber hemisphere 10 is used to locate the installation position of the positioning frame 6.

[0035] Please continue reading Figure 2: A positioning groove 11 for docking the steel wire rope 5 is opened on the outside of the insulation pad 4. The insulation pad 4 is also used to guide the force to the outside when the cable is subjected to an extrusion force to reduce the impact on the cable core 1. The steel wire rope 5 is inserted into the positioning groove 11 to extrude the insulation pad 4 inward to form a circular covering of the cable core 1.

[0036] Please continue reading Figure 3-5 A hollow cavity 12 is provided near the outer side of the positioning frame 6, and a convex pad 15 for engaging with the hollow cavity 12 is provided on the inner side of the convex ring belt 7. The convex pad 15 is a rubber structure, and its edge size is equal to the hollow cavity 12, thereby forming an extrusion force to enhance the installation stability.

[0037] Please continue reading Figure 3 A plug 13 for docking the rubber hemisphere 10 is arranged on the inner side of the positioning frame 6. The outer wall of the plug 13 increases the friction resistance to enhance the connection stability. A card slot 14 for the plug 13 to engage and connect is opened on the outer side of the rubber hemisphere 10.

[0038] Please continue reading Figure 5 : Both ends of the hollow cavity 12 are provided with protruding bosses 16.

[0039] Please continue reading Figure 5 : Both ends of the convex pad 15 are provided with protruding rubber strips 17, the upper end of the rubber strip 17 is a rectangular structure connected to the inner wall of the convex ring belt 7, the rubber strip 17 adopts an elastic rubber mechanism, and its circular mechanism can automatically form a guide and automatically retract when encountering external force.

[0040] Please continue reading Figure 5 A limiting groove 18 for the rubber strip 17 to be engaged and connected is provided inside the boss 16.

[0041] Please continue reading Figure 2 The heat insulation pad 4, the steel wire rope 5 and the positioning frame 6 are all assembled on the outside of the transmission path of the cable core 1 before the cable core 1 is extruded.

[0042] It can be understood that the present invention proposes a replaceable dragging assembly, which can suspend the cable in the air, reduce the contact range between the outer skin and the external ground or equipment, etc., and at the same time reduce the resistance when the cable is dragged, so as to facilitate different dragging operations. Secondly, the mechanism can be conveniently assembled and disassembled for inspection and other processing to maintain the normal use of the function.

[0043] The workflow of this utility is:

[0044] First, before the cable core 1 is transmitted to the extrusion machine, the externally wound thermal insulation pad 4 is laid symmetrically on the outside of the cable core 1, and then the externally wound steel wire rope 5 is placed outward to dock with the positioning groove 11, thereby squeezing the thermal insulation pad 4 to shrink it inward to form a circular cable core 1, and then forming a first coating layer 2 and a second coating layer 3 with inner and outer layers during the extrusion operation, and then the thermal insulation pad 4 can be assembled inside the cable to isolate the external heat from being transferred inward to improve the flame retardant performance of the cable; further, after the steel wire rope 5 is laid, the plug 13 on the inner side of the positioning frame 6 is manually inserted into the internal docking rubber hemisphere 10 of the card slot 14, and the positioning The frame 6 is fixed to the outside of the wire rope 5, and then after the cable is extruded and formed, the spacer 9 is peeled off, and then the convex pad 15 on the inner side of the convex ring band 7 is inserted into the inside of the hollow cavity 12 to complete the installation, and finally the opening position is hot-melt connected. After this arrangement, a protruding structure can be formed to support the cable in sections so that it is suspended, and then when the cable is dragged, its friction resistance can be greatly reduced, so that it can be conveniently adjusted to the use position, and it can also avoid the outer skin being torn by friction to increase the service life. Secondly, the cable can be quickly dragged in case of fire to reduce cost losses. Using its assembly structure, it can also be convenient to repair and replace it to maintain long-term performance.

[0045] In the description of this utility model, unless otherwise specified, "plurality" means two or more than two; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicate orientation or positional relationship, which are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present utility model.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible flame-retardant and high-temperature resistant special cable for industrial construction, comprising a cable core (1), characterized in that: The outer side of the cable core (1) is provided with a first coating layer (2) and a second coating layer (3) in layers, the second coating layer (3) is located at the outer layer, the outer side of the first coating layer (2) is provided with a heat insulation pad (4) for isolating external heat, the outer side of the heat insulation pad (4) is provided with a steel wire rope (5) for replacing the cable core (1) to bear the external pulling force, the outer side of the heat insulation pad (4) is provided with a positioning frame (6) in sections, the outer side of the positioning frame (6) is provided with a convex ring belt (7) for reducing the difficulty of dragging the point cable, and the inner side of the adjacent outer side of the convex ring belt (7) is installed with a ball (8) for reducing friction resistance, and the convex ring belt (7) is also used to support the cable in sections so that it is suspended in the air to reduce the wear contact surface.

2. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 1, characterized in that: A spacer (9) is arranged on the outer side of the positioning frame (6), and the convex ring band (7) is installed on the outer side of the positioning frame (6) after the spacer (9) is peeled off.

3. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 1, characterized in that: The outer side of the steel wire rope (5) is installed with rubber hemispheres (10) in sections, and the rubber hemispheres (10) are used to locate the installation position of the positioning frame (6).

4. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 1, characterized in that: The outer side of the thermal insulation pad (4) is provided with a positioning groove (11) for docking the steel wire rope (5), and the steel wire rope (5) is inserted into the interior of the positioning groove (11) to squeeze the thermal insulation pad (4) inward to form a circular coated cable core (1).

5. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 1, characterized in that: A hollow cavity (12) is provided near the outer side of the positioning frame (6), and a convex pad (15) for engaging and connecting with the hollow cavity (12) is provided on the inner side of the convex ring belt (7).

6. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 1, characterized in that: A plug (13) for docking with the rubber hemisphere (10) is arranged on the inner side of the positioning frame (6), and a slot (14) for engaging and connecting the plug (13) is provided on the outer side of the rubber hemisphere (10).

7. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 5, characterized in that: Both ends of the hollow cavity (12) are provided with protruding bosses (16).

8. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 5, characterized in that: Protruding rubber strips (17) are provided at both ends of the convex pad (15), and the upper end of the rubber strip (17) is a rectangular structure connected to the inner wall of the convex ring belt (7).

9. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 7, characterized in that: A limiting groove (18) for snap-fitting and connecting the rubber strip (17) is provided inside the boss (16).

10. The flexible flame-retardant and high-temperature resistant special cable for industrial construction according to claim 1, characterized in that: The thermal insulation pad (4), the steel wire rope (5) and the positioning frame (6) are all assembled outside the transmission path of the cable core (1) before the cable core (1) is extruded.

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