Cold-resistant flame-retardant cable structure

Abstract

The utility model discloses a cold-resistant flame-retardant cable structure, relates to the technical field of cables, and aims to solve the technical problem that the cold-resistant flame-retardant performance of a cable is affected as a current cold-resistant flame-retardant cable structure is easily gnawed by insects and rats, the cable structure comprises a cable main body, the cable main body comprises a battery cell structure, a flame-retardant layer is arranged outside the battery cell structure, and the flame-retardant layer is arranged outside the cable main body. A cold-resistant structure is arranged outside the flame-retardant layer, the cold-resistant structure comprises an inner cold-resistant layer, the inner cold-resistant layer is arranged outside the flame-retardant layer, an iron sheet layer is arranged outside the inner cold-resistant layer, an outer cold-resistant layer is arranged outside the iron sheet layer, the iron sheet layer comprises two sets of combined rings, and the combined rings are of a spiral structure. The spiral gap and the spiral section of the combined ring are the same. The device has the advantage of preventing insects and rats from gnawing.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and more specifically, to a cold-resistant and flame-retardant cable structure. Background Art

[0002] A cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires. The structures of cables are diverse. In order to meet the usage requirements in different environments, different functional layers are set. Among them, the cold-resistant and flame-retardant cable is a common cable structure. The cold-resistant and flame-retardant cable structure usually sets a flame-retardant layer and a cold-resistant outer sheath (special materials such as low-temperature-resistant polyvinyl chloride or low-temperature-resistant polyurethane) outside the cable core, so as to make the cable have the effects of cold resistance and flame retardance.

[0003] When the existing cold-resistant and flame-retardant cable structure is used in mountainous areas with a large number of insects and rodents, the flame-retardant layer and the cold-resistant outer sheath of the cable are easily gnawed by insects and rodents, so that the gnawed parts of the flame-retardant layer and the cold-resistant outer sheath lose the cold-resistant and flame-retardant performance, thus affecting the cold-resistant and flame-retardant performance of the cable. In view of this, we propose a cold-resistant and flame-retardant cable structure. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a cold-resistant and flame-retardant cable structure to solve the technical problem that the current cold-resistant and flame-retardant cable structure is easily gnawed by insects and rodents, thereby affecting the cold-resistant and flame-retardant performance of the cable.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A cold-resistant and flame-retardant cable structure, including a cable main body, the cable main body includes a cable core structure, a flame-retardant layer is arranged outside the cable core structure, a cold-resistant structure is arranged outside the flame-retardant layer, the cold-resistant structure includes an inner cold-resistant layer, the inner cold-resistant layer is arranged outside the flame-retardant layer, an iron sheet layer is arranged outside the inner cold-resistant layer, and an outer cold-resistant layer is arranged outside the iron sheet layer;

[0006] The iron sheet layer includes two groups of combined rings, and the combined rings are in a spiral structure, and the spiral gaps and spiral cross-sections of the combined rings are the same.

[0007] The utility model composes a cold-resistant structure through an inner cold-resistant layer, an iron sheet layer, and an outer cold-resistant layer. Both the inner cold-resistant layer and the outer cold-resistant layer can effectively protect the cable body, and at the same time have good cold-resistant performance, and can maintain the flexibility and durability of the cable body under extremely low temperature conditions. When the cable body is used in mountainous areas with many insects and rodents, when the outer cold-resistant layer is gnawed by insects and rodents, the iron sheet layer between the inner cold-resistant layer and the outer cold-resistant layer can provide good protection against the gnawing of insects and rodents, preventing them from continuing to gnaw on the inner cold-resistant layer, the flame-retardant layer, etc., and can effectively ensure the cold-resistant and flame-retardant performance of the cable body; the iron sheet layer in the utility model is composed of two groups of combined rings, and the two groups of combined rings are in a spiral shape, and the spiral gap is the same as the spiral cross-section. Therefore, the two groups of combined rings can be seamlessly butted to form a circular sleeve structure. On the one hand, it can facilitate the rapid installation of personnel, and on the other hand, the iron sheet layer composed of two groups of spiral combined rings has better bending and reset performance and will not affect the bending performance of the cable body; fixed sleeve rings are arranged at both ends of the utility model. When the fixed sleeve rings are sleeved on the cold-resistant structure, at this time, the fixing rings inside the fixed sleeve rings are inserted into the insertion cavity, and then the buckling rings on the fixing rings are respectively buckled inside the buckling grooves. And one side of the buckling ring is an inclined surface and the other side is a vertical surface. With the cooperation of the inclined surface, the fixing ring can smoothly expand and insert the insertion cavity. When the fixing ring is completely inserted into the insertion cavity, at this time, the vertical surface of the buckling ring is buckled with the vertical surface of the buckling groove, which can stably sleeve the fixed sleeve rings at both ends of the cold-resistant structure, stabilize the combination of the inner cold-resistant layer, the iron sheet layer, and the outer cold-resistant layer, and prevent the inner cold-resistant layer, the iron sheet layer, and the outer cold-resistant layer from shifting, thereby ensuring the overall stability of the cold-resistant structure.

[0008] Preferably, fixed sleeve rings are movably arranged at both ends of the cold-resistant structure, a circular sleeve opening is arranged on one side of the fixed sleeve rings, and the diameter of the circular sleeve opening matches the diameter of the outer cold-resistant layer.

[0009] Preferably, insertion cavities are reserved at both ends of the inner cold-resistant layer and the outer cold-resistant layer, a fixing ring is arranged inside the circular sleeve opening, and the size of the fixing ring matches the size of the insertion cavity.

[0010] Preferably, buckling rings are arranged on the outer part and the inner wall of the fixing ring, and buckling grooves symmetrical to the buckling rings are opened on the inner wall of the insertion cavity.

[0011] Preferably, the side of the buckling ring facing the cold-resistant structure is an inclined surface, the side of the buckling ring facing away from the cold-resistant structure is a vertical surface, and the size of the buckling groove matches the size of the buckling ring.

[0012] Preferably, the core structure includes a strengthening core body and a wrapping layer. A plurality of groups of conductive core bodies are arranged equidistantly around the strengthening core body. The wrapping layer covers the conductive core bodies and the strengthening core body, and cable paste is filled in the gaps between the strengthening core body, the conductive core bodies, and the wrapping layer.

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

[0014] 1. The present utility model forms a cold-resistant structure through an inner cold-resistant layer, an iron sheet layer, and an outer cold-resistant layer. Both the inner cold-resistant layer and the outer cold-resistant layer can effectively protect the cable body, and at the same time have good cold-resistant performance, and can maintain the flexibility and durability of the cable body under extremely low temperature conditions. When the cable body is used in mountainous areas with a large number of insects and rodents, when the outer cold-resistant layer is gnawed by insects and rodents, the iron sheet layer between the inner cold-resistant layer and the outer cold-resistant layer can provide good protection against the gnawing of insects and rodents, preventing them from continuing to gnaw on the inner cold-resistant layer, the flame-retardant layer, etc., and can effectively ensure the cold-resistant and flame-retardant performance of the cable body, solving the technical problem that the structure of the current cold-resistant and flame-retardant cable is easily gnawed by insects and rodents, which affects the cold-resistant and flame-retardant performance of the cable. Therefore, the present utility model has the advantage of preventing insects and rodents from gnawing.

[0015] 2. The iron sheet layer in the present utility model is composed of two sets of combined rings, and the two sets of combined rings are spiral-shaped, and the spiral gap is the same as the spiral cross-section. Therefore, the two sets of combined rings can be seamlessly butted to form a circular sleeve structure. On the one hand, it can facilitate the rapid installation of personnel, and on the other hand, the iron sheet layer composed of two sets of spiral-shaped combined rings has better bending and reset performance and will not affect the bending performance of the cable body.

[0016] 3. Fixed sleeve rings are provided at both ends of the present utility model. When the fixed sleeve rings are sleeved on the cold-resistant structure, at this time, the fixed rings inside the fixed sleeve rings are inserted into the insertion cavity, and then the buckling rings on the fixed rings are respectively buckled inside the buckling grooves. And one side of the buckling ring is an inclined surface and the other side is a vertical surface. Under the cooperation of the inclined surface, the fixed ring can smoothly expand and insert the insertion cavity. When the fixed ring is completely inserted into the insertion cavity, at this time, the vertical surface of the buckling ring is buckled with the vertical surface of the buckling groove, which can make the fixed sleeve rings stably sleeved at both ends of the cold-resistant structure, and stabilize the combination of the inner cold-resistant layer, the iron sheet layer, and the outer cold-resistant layer, avoiding displacement of the inner cold-resistant layer, the iron sheet layer, and the outer cold-resistant layer, thereby ensuring the overall stability of the cold-resistant structure. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the cross-sectional structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the cross-sectional structure of the cold-resistant structure of the present utility model;

[0020] Figure 4 is a schematic diagram of the iron sheet layer structure of the present utility model;

[0021] Figure 5 is a schematic diagram of the fixed sleeve ring structure of the present utility model;

[0022] Figure 6 For the present utility model Figure 3 The enlarged schematic view at position A in

[0023] Explanation of reference numerals in the figure:

[0024] 1. Cable main body; 2. Core structure; 201. Reinforcing core; 202. Conductive core; 203. Wrapping layer; 204. Cable paste; 3. Flame retardant layer; 4. Cold resistant structure; 5. Inner cold resistant layer; 6. Iron sheet layer; 601. Combination ring; 7. Outer cold resistant layer; 8. Fixed collar; 801. Circular socket; 802. Fixed ring; 803. Clamping ring; 9. Insertion cavity; 10. Clamping groove. Specific embodiments

[0025] As Figures 1 to 6 shown, a cold resistant and flame retardant cable structure related to the present utility model includes a cable main body 1. The cable main body 1 includes a core structure 2. A flame retardant layer 3 is arranged outside the core structure 2. A cold resistant structure 4 is arranged outside the flame retardant layer 3. The cold resistant structure 4 includes an inner cold resistant layer 5. The inner cold resistant layer 5 is arranged outside the flame retardant layer 3. An iron sheet layer 6 is arranged outside the inner cold resistant layer 5. An outer cold resistant layer 7 is arranged outside the iron sheet layer 6. The core structure 2, the flame retardant layer 3 and the cold resistant structure 4 form the cold resistant and flame retardant cable main body 1. When the cable main body 1 is used in mountainous areas with a large number of insects and rodents, when the outer cold resistant layer 7 is gnawed by insects and rodents, the iron sheet layer 6 between the inner cold resistant layer 5 and the outer cold resistant layer 7 can provide good protection against the gnawing of insects and rodents, preventing them from continuing to gnaw on the inner cold resistant layer 5, the flame retardant layer 3, etc., and effectively ensuring the cold resistant and flame retardant performance of the cable main body 1.

[0026] Specifically, the core structure 2 includes a reinforcing core 201 and a wrapping layer 203. A number of groups of conductive cores 202 are arranged equidistantly around the reinforcing core 201. The wrapping layer 203 covers the conductive cores 202 and the reinforcing core 201. Cable paste 204 is filled in the gaps between the reinforcing core 201, the conductive cores 202 and the wrapping layer 203. The wrapping layer 203 is used to wrap and fasten the reinforcing core 201 and the conductive cores 202. The cable paste 204 has effects such as moisture-proof, waterproof, insulation, and anti-corrosion.

[0027] In the embodiment of the present utility model, the iron sheet layer 6 includes two groups of combination rings 601, and the combination rings 601 are in a spiral structure. The spiral gaps and spiral cross-sections of the combination rings 601 are the same. The two groups of combination rings 601 can be seamlessly butted to form a circular sleeve structure to be sleeved on the inner cold resistant layer 5. On the one hand, it can facilitate the rapid installation by personnel. On the other hand, the iron sheet layer 6 composed of two groups of spiral combination rings 601 has better bending and reset performance and will not affect the bending performance of the cable main body 1.

[0028] In an embodiment of the present utility model, fixed collars 8 are movably arranged at both ends of the cold-resistant structure 4. A circular socket 801 is arranged on one side of the fixed collar 8, and the diameter of the circular socket 801 matches the diameter of the outer cold-resistant layer 7. The circular socket 801 of the fixed collar 8 can directly fit over the ends of the cold-resistant structure 4 to realize the limit fixation of the inner cold-resistant layer 5, the outer cold-resistant layer 7, and the iron sheet layer 6, preventing the inner cold-resistant layer 5, the outer cold-resistant layer 7, and the iron sheet layer 6 from shifting, thereby ensuring the stability of the cold-resistant structure 4.

[0029] Specifically, insertion cavities 9 are reserved at both ends of the inner cold-resistant layer 5 and the outer cold-resistant layer 7. A fixing ring 802 is arranged inside the circular socket 801, and the size of the fixing ring 802 matches the size of the insertion cavity 9; buckling rings 803 are arranged both outside and on the inner wall of the fixing ring 802, and buckling grooves 10 symmetrical to the buckling rings 803 are formed on the inner wall of the insertion cavity 9; the side of the buckling ring 803 facing the cold-resistant structure 4 is an inclined surface, and the side of the buckling ring 803 facing away from the cold-resistant structure 4 is a vertical surface, and the size of the buckling groove 10 matches the size of the buckling ring 803. When the fixed collar 8 is fitted over both ends of the cold-resistant structure 4, at this time, the fixing ring 802 is inserted into the insertion cavity 9. When the fixing ring 802 is completely inserted into the insertion cavity 9, at this time, the vertical surface of the buckling ring 803 is buckled with the vertical surface of the buckling groove 10, enabling the fixed collar 8 to be stably fitted over both ends of the cold-resistant structure 4, stabilizing the combination of the inner cold-resistant layer 5, the iron sheet layer 6, and the outer cold-resistant layer 7, and preventing the inner cold-resistant layer 5, the iron sheet layer 6, and the outer cold-resistant layer 7 from shifting, thereby ensuring the overall stability of the cold-resistant structure 4.

[0030] Working principle: This embodiment provides a cold-resistant and flame-retardant cable structure. First, the core structure 2, the flame-retardant layer 3, and the cold-resistant structure 4 form the cold-resistant and flame-retardant cable main body 1. When the cable main body 1 is used in mountainous areas with a large number of insects and rodents, when the outer cold-resistant layer 7 is gnawed by insects and rodents, the iron sheet layer 6 between the inner cold-resistant layer 5 and the outer cold-resistant layer 7 can provide good protection against the gnawing of insects and rodents, preventing them from continuing to gnaw on the inner cold-resistant layer 5, the flame-retardant layer 3, etc., and effectively ensuring the cold-resistant and flame-retardant performance of the cable main body 1;

[0031] Secondly, two sets of combined rings 601 can be seamlessly butted to form a circular sleeve structure that fits over the inner cold-resistant layer 5. On the one hand, it can facilitate the rapid installation of personnel, and on the other hand, the bending and reset performance of the iron sheet layer 6 composed of two sets of spiral combined rings 601 is better, and it will not affect the bending performance of the cable main body 1.

[0032] Finally, the circular socket 801 of the fixing collar 8 can directly fit over the end of the cold-resistant structure 4. When the fixing collar 8 is fitted over both ends of the cold-resistant structure 4, the fixing ring 802 is inserted into the fitting cavity 9 at this time. After the fixing ring 802 is completely inserted into the fitting cavity 9, the vertical surface of the fastening ring 803 is fastened to the vertical surface of the fastening groove 10, which can stably fit the fixing collar 8 over both ends of the cold-resistant structure 4, and secure the combination of the inner cold-resistant layer 5, the iron sheet layer 6, and the outer cold-resistant layer 7, preventing the inner cold-resistant layer 5, the iron sheet layer 6, and the outer cold-resistant layer 7 from shifting, thereby ensuring the overall stability of the cold-resistant structure 4.

[0033] The embodiments disclosed in this utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of this utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of this utility model, they are within the protection scope of this utility model.

Claims

1. A cold-resistant and flame-retardant cable structure, characterized in that, It includes a cable body (1), the cable body (1) includes a core structure (2), a flame retardant layer (3) is arranged outside the core structure (2), a cold resistant structure (4) is arranged outside the flame retardant layer (3), the cold resistant structure (4) includes an inner cold resistant layer (5), the inner cold resistant layer (5) is arranged outside the flame retardant layer (3), an iron sheet layer (6) is arranged outside the inner cold resistant layer (5), and an outer cold resistant layer (7) is arranged outside the iron sheet layer (6); The iron sheet layer (6) includes two groups of combined rings (601), and the combined rings (601) are in a spiral structure, and the spiral gaps and spiral cross-sections of the combined rings (601) are the same.

2. The structure of a cold-resistant and flame-retardant cable according to claim 1, wherein, Fixing collars (8) are movably arranged at both ends of the cold resistant structure (4), a circular socket (801) is arranged on one side of the fixing collar (8), and the diameter of the circular socket (801) matches the diameter of the outer cold resistant layer (7).

3. The structure of a cold-resistant and flame-retardant cable according to claim 2, characterized in that, Insertion cavities (9) are reserved at both ends of the inner cold resistant layer (5) and the outer cold resistant layer (7), a fixing ring (802) is arranged inside the circular socket (801), and the size of the fixing ring (802) matches the size of the insertion cavity (9).

4. The structure of a cold-resistant and flame-retardant cable according to claim 3, characterized in that, Buckling rings (803) are arranged on both the outside and the inner wall of the fixing ring (802), and buckling grooves (10) symmetrical to the buckling rings (803) are formed on the inner wall of the insertion cavity (9).

5. The structure of a cold-resistant and flame-retardant cable according to claim 4, characterized in that, One side of the buckling ring (803) facing the cold resistant structure (4) is an inclined surface, the side of the buckling ring (803) facing away from the cold resistant structure (4) is a vertical surface, and the size of the buckling groove (10) matches the size of the buckling ring (803).

6. The structure of a cold-resistant and flame-retardant cable according to claim 1, characterized in that, The core structure (2) includes a reinforcing core body (201) and a wrapping layer (203), a number of groups of conductive core bodies (202) are arranged equidistantly around the reinforcing core body (201), the wrapping layer (203) covers the conductive core bodies (202) and the reinforcing core body (201), and cable paste (204) is filled in the gaps between the reinforcing core body (201), the conductive core bodies (202) and the wrapping layer (203).

Images