Aluminum alloy cable and insulation extrusion device

Abstract

The utility model discloses an aluminum alloy cable and an insulation extrusion device. The aluminum alloy cable comprises an outer skin layer, an aluminum alloy conductor, a protection layer, a fireproof layer, a shielding layer, a waterproof layer and an aluminum alloy interlocking armor, the aluminum alloy conductors are formed by winding and gluing a plurality of aluminum alloy wires, the protective layers correspondingly wrap the aluminum alloy conductors respectively, the shielding layer wraps the protective layers, the fireproof layer is arranged on the outer surface of the shielding layer, the waterproof layer is arranged on the outer surface of the fireproof layer, and the waterproof layer is arranged on the outer surface of the waterproof layer. The aluminum alloy interlocking armor is arranged on the outer surface of the waterproof layer, and the outer skin layer wraps the outer surface of the aluminum alloy interlocking armor. The cable is mainly used in the technical field of power cables, the fireproof layer is made of the fiber material, the fiber material has good flexibility, compared with a traditional steel fireproof layer, the cable is not liable to be damaged due to bending, the practicality of the cable is enhanced, and in addition, the anti-ant waterproof layer is arranged, so that the cable is prevented from being bitten by ants and is moisture-proof.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power, and particularly relates to an aluminum alloy cable and an insulation extrusion device. Background Art

[0002] Power cables are cables used to transmit and distribute electricity. Power cables are distributed in every corner of the city and are an indispensable part of urban operations. Fires often occur in cities, and power cables need to have good fire protection effects. In order to improve the fire resistance of cables, fire protection layers are usually added to power cables to form fire-resistant and flame-retardant cables.

[0003] The authorized patent of CN208507297U discloses at least a conductor structure, an inner sheath, an intermediate layer and an outer sheath, wherein the outer sheath has a flame retardant.

[0004] In the above structure, although the cable has a flame retardant function, its structure is not flexible and is easily damaged when the cable is bent, and the anti-ant effect is poor. Utility Model Content

[0005] The purpose of the utility model is to propose an aluminum alloy cable to solve the problems of weak flexibility and poor anti-ant effect. The utility model provides an anti-ant layer between the fireproof layer and the water-blocking layer, and the fireproof layer is made of fiber material to achieve the flexibility required for cable bending. The water-blocking layer is used in conjunction with the aluminum alloy interlocking armor to play a moisture-proof role and can serve as the first line of defense against insects.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] An aluminum alloy cable comprises an outer skin layer, an aluminum alloy conductor, a protective layer, a fireproof layer, a shielding layer, a water-blocking layer and an aluminum alloy interlocking armor;

[0008] There are multiple aluminum alloy conductors, which are formed by winding and gluing multiple aluminum alloy wires. There are multiple protective layers, which are respectively wrapped around the outside of the aluminum alloy conductors. The shielding layer is formed by fusion and casting of multiple shielding wires. The shielding layer will wrap around the multiple protective layers and separate the multiple protective layers.

[0009] The fireproof layer is arranged on the outer surface of the shielding layer. The fireproof layer is formed by melting and pouring inorganic thermal insulation particles on the surface of the shielding layer. The water-blocking layer is wrapped around the outer surface of the fireproof layer. The water-blocking layer wraps the aluminum alloy interlocking armor. The surface of the aluminum alloy interlocking armor wraps the outer skin layer.

[0010] As a further technical improvement, an anti-ant layer is provided between the fireproof layer and the water-blocking layer. The anti-ant layer is formed by casting a plurality of anti-ant strips at intervals on the outer surface of the fireproof layer, and a plurality of the anti-ant strips are wrapped by the water-blocking layer on the surface of the fireproof layer.

[0011] As a further technical improvement, the anti-termite strip is a colloid made by dissolving and stirring the anti-termite drug and soluble particles, and the colloid can be attached to the fireproof layer.

[0012] As a further technical improvement, the fireproof layer is a glass fiber layer; the fireproof layer is one of the protective layers of the cable.

[0013] An insulation extrusion device for an aluminum alloy cable is used to process the aluminum alloy cable as described above, comprising a bracket, an extruder, and a casting bucket. The extruder is fixedly mounted on the bracket, and the extruder adopts a twin-screw extruder. The casting bucket is fixedly mounted at the output port of the extruder. A filling channel is provided on the casting bucket, and the filling channel can be used to transport a colloid, and the colloid can be attached to the fireproof layer in the cable.

[0014] As a further technical improvement, a plastic channel is provided inside the pouring barrel, the cable passes through the inside of the pouring barrel through the plastic channel, an extrusion ring is provided at the outlet of the pouring barrel, the extrusion ring includes an extrusion shell, an extrusion hole, a feed port and a ring strip; the extrusion ring is in a circular ring shape, a circular ring channel is provided inside the extrusion shell, a plurality of extrusion holes are provided, and the plurality of extrusion holes are arranged at certain intervals on the inner side of the extrusion shell, the ring strip is provided between the plurality of extrusion holes, the feed port is connected to the filling channel, and the colloid enters the inside of the extrusion shell through the filling channel and the feed port.

[0015] As a further technical improvement, it also includes a weaving component, which includes a winding component, a cable transmission channel, an expansion ring and a weaving motor; the cable transmission channel runs through the entire weaving component; the weaving motor provides power for the weaving component, and there are several winding components, several of which are arranged at the output end of the weaving motor, and several of the winding components are arranged around the cable transmission channel at certain intervals. The expansion ring is arranged on one side of the output end of the weaving motor and on the cable transmission channel, and the cable transmission channel runs through the expansion ring.

[0016] Compared with the existing technology, the utility model has the following beneficial effects:

[0017] 1. The fireproof layer in the utility model is made of fiber material. The fiber material has good flexibility and can be bent. Compared with the traditional steel material fireproof layer, it is not easily damaged by bending, and its practicality is enhanced. In addition, an anti-ant layer is provided, and the anti-ant layer is composed of a plurality of anti-ant strips arranged at intervals. The plurality of anti-ant strips are also embedded in the outer skin layer, which plays a role in preventing ants from biting and saves materials.

[0018] 2. In the utility model, an extrusion ring is provided, and a plurality of extrusion holes are provided inside the extrusion ring. The colloid is attached to the fireproof layer of the cable through the extrusion holes. As the cable is continuously pushed outward, the colloid attached to the surface of the cable is in strip shape.

[0019] 3. In the utility model, the aluminum alloy interlocking armor and the water-blocking layer cooperate with each other to prevent moisture and enhance its air tightness. The water-blocking layer is made of a material that can expand rapidly when it comes into contact with water, and cooperates with the aluminum alloy interlocking armor. When the outer layer ruptures and is not handled in time, water accumulates in the aluminum alloy interlocking armor, and some of the moisture may penetrate through the gaps in the aluminum alloy interlocking armor. The water-blocking layer expands rapidly when it comes into contact with moisture, fits the gaps in the aluminum alloy interlocking armor, and achieves a waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 This is a schematic diagram of the internal structure of the cable of the utility model;

[0022] Figure 2 This is a cross-sectional view of the cable structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the extrusion device of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the extrusion ring of the utility model;

[0025] Figure 5 It is a dissected diagram of the internal part of the pouring bucket of the extrusion device of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of some components of the braiding assembly of the utility model.

[0027] Description of reference numerals:

[0028] 1. Outer skin layer; 2. Fireproof layer; 3. Shielding layer; 4. Second protective layer; 5. Aluminum alloy conductor; 6. Anti-ant layer; 7. Extruder; 8. Casting bucket; 9. Bracket; 10- Filling channel; 11- Extrusion ring; 12- Cable; 13- Water-grouping layer; 14- Aluminum alloy interlocking armor; 15- Braiding component; 101- Colloid; 111- Extrusion shell; 112- Extrusion hole; 113- Feed inlet; 114- Ring strip; 151- Winding component; 152- Cable transmission channel; 153- Expansion ring; 154- Braiding motor. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0033] like Figure 1 to Figure 2 As shown, the utility model provides an aluminum alloy cable, comprising an outer skin layer 1, an aluminum alloy conductor 5, a protective layer 4, a fireproof layer 2, a shielding layer 3, a water-blocking layer 13 and an aluminum alloy interlocking armor 14;

[0034] The aluminum alloy conductor 5 is provided with a plurality of aluminum alloy conductors 5, and the aluminum alloy conductor 5 is formed by winding and gluing a plurality of aluminum alloy wires. The protective layer 4 is provided with a plurality of protective layers 4, and the plurality of protective layers 4 are respectively wrapped around the outside of the aluminum alloy conductor 5. The shielding layer 3 is formed by fusion and casting of a plurality of shielding wires, and the shielding layer 3 will wrap around the plurality of protective layers 4 and separate the plurality of protective layers 4.

[0035] The fireproof layer 2 is arranged on the outer surface of the shielding layer 3, and the fireproof layer 2 is formed by melting and pouring inorganic heat-insulating particles on the surface of the shielding layer 3. The water-blocking layer 13 is wrapped on the outer surface of the fireproof layer 2, and the water-blocking layer 13 wraps the aluminum alloy interlocking armor 14, and the surface of the aluminum alloy interlocking armor 14 wraps the outer skin layer 1;

[0036] The fireproof layer 2 is arranged on the outer surface of the shielding layer 3. The fireproof layer 2 is composed of inorganic heat-insulating particles melted and cast on the surface of the shielding layer 3. The outer skin layer 1 is wrapped around the outer surface of the fireproof layer 2. In this embodiment, the fireproof layer 2 is made of high-temperature resistant fiber material. The fiber material also has strong softness, so that when the cable is bent, the fireproof layer 2 can also be bent, and the structure has strong adaptability and is not easy to be damaged.

[0037] An anti-termite layer 6 is also provided between the fireproof layer 2 and the outer skin layer 1. The anti-termite layer 6 is formed by casting a plurality of anti-termite strips at intervals on the outer skin of the fireproof layer 2, and the plurality of anti-termite strips are embedded in the outer skin layer 1. In this embodiment, the plurality of anti-termite strips are arranged at intervals, so that the material of the anti-termite layer 6 can be saved. The plurality of anti-termite strips are arranged to be embedded in the outer skin layer 1, so that the distance between the anti-termite layer 6 and the outer surface of the outer skin layer 1 is small, and the outer skin layer 1 can also play an anti-termite protection role. The anti-termite strips are made of a colloid 101 (the anti-termite capsaicin is wrapped in a polyolefin chemical molecule) prepared by dissolving and stirring an anti-termite drug (capsaicin) and a soluble particle (polyolefin) together, and the colloid 101 can be attached to the fireproof layer 2.

[0038] like Figures 3 to 5 As shown, an insulation extrusion device for an aluminum alloy cable includes a bracket 9, an extruder 7, and a pouring bucket 8. The extruder 7 is fixedly mounted on the bracket 9. The extruder 7 is a twin-screw extruder 7. The pouring bucket 8 is fixedly mounted at the output port of the extruder 7. The pouring bucket 8 is provided with a filling channel 10, which can be used to convey a colloid 101, and the colloid 101 can be attached to the fireproof layer 2 in the cable 12. In this embodiment, the filling channel 10 inside the pouring bucket 8 is designed as a tubular channel, which is gradually reduced from the entrance to the inside, and is connected with the feed port 113 to convey the colloid 101 to the inside of the extrusion shell 111, and finally attached to the fireproof layer 2 of the cable 12 through the extrusion hole 112.

[0039] The pouring barrel 8 is provided with a plastic channel inside, and the cable 12 passes through the pouring barrel 8 through the plastic channel. The outlet of the pouring barrel 8 is provided with an extrusion ring 11, and the extrusion ring 11 includes an extrusion shell 111, an extrusion hole 112, a feed port 113 and a ring strip 114. The extrusion ring 11 is in a circular ring shape, and a circular channel is provided inside the extrusion shell 111. There are a plurality of extrusion holes 112, and the plurality of extrusion holes 112 are arranged at a certain interval on the inner side of the extrusion shell 111. The ring strip 114 is provided between the plurality of extrusion holes 112. The feed port 113 is connected to the filling channel 10, and the colloid 101 enters the interior of the extrusion shell 111 through the filling channel 10 and the feed port 113. In this embodiment, Figure 5 As shown, the prepared colloid 101 enters the interior of the casting bucket 8 from the filling channel 10, flows along the filling channel 10 to the extrusion ring 11, enters the interior of the extrusion shell 111 through the feed port 113, is extruded through a plurality of extrusion holes 112 and attached to the fireproof layer 2 in the cable 12, and is finally continuously pushed out through the outlet of the casting bucket 8. The colloid 101 forms a thin strip on the cable 12, and finally enters the next casting equipment to be covered with a layer of outer skin layer 1.

[0040] It also includes a weaving component 15, which includes a winding component 151, a cable transmission channel 152, an expansion ring 153 and a weaving motor 154; the cable transmission channel 152 runs through the entire weaving component 15; the weaving motor 154 provides power for the weaving component 15, and there are a plurality of winding components 151, and the plurality of winding components 151 are all arranged at the output end of the weaving motor 154, and the plurality of winding components 151 are arranged around the cable transmission channel 152 at a certain interval, and the expansion ring 153 is arranged on one side of the output end of the weaving motor 154 and on the cable transmission channel 152, and the cable transmission channel 152 runs through the expansion ring 153. In this embodiment, the braiding component 15 is connected to the output end of the pouring barrel 8, and the cable with the anti-ant layer 6 is braided with a layer of water-blocking layer 13. The water-blocking layer 13 is mesh-shaped and covers the surface of the anti-ant layer 6 and the fire-proof layer 2 to prepare for winding the aluminum alloy interlocking armor 14. Winding a layer of aluminum alloy interlocking armor 14 and weaving a layer of water-blocking layer 13 can both be completed with existing equipment. The water-blocking layer 13 is used in conjunction with the aluminum alloy interlocking armor 14 to fill the gaps in the aluminum alloy interlocking armor 14 and enhance the moisture-proof effect.

[0041] The use method of the utility model: from the aluminum alloy conductor 5 to the casting shielding layer 3, all can be completed by existing equipment, from the fireproof layer 2 to the anti-ant layer 6, the anti-ant layer 6 to the water-blocking layer 13, the water-blocking layer 13 to the aluminum alloy interlocking armor 14, and the aluminum alloy interlocking armor 14 to the outer skin layer 1, three times of casting and two times of winding are completed, the cable 12 with the cast shielding layer 3 is cast with the fireproof layer 2 through the casting equipment, the outlet of the equipment for casting the fireproof layer 2 is connected to the inlet of the plastic channel of the casting bucket 8, the casting bucket 8 is opened in advance, and the colloid 101 enters the inside of the casting bucket 8 through the filling channel 10, flows along the filling channel 10 to the extrusion ring 11, and passes through the feeding The opening 113 enters the extrusion shell 111, is extruded through a plurality of extrusion holes 112, and adheres to the fireproof layer 2 in the cable 12. The outlet of the casting barrel 8 is connected to the braided component 15, and the cable 12 with the anti-ant layer cast is passed through the braided component 15 until it reaches the output end of the braided component 15. The cable 12 is wrapped with a water-blocking layer 13, and then connected to the equipment for winding the aluminum alloy interlocking armor 14 to add a layer of aluminum alloy interlocking armor 14, and then goes to the next equipment for casting the outer skin layer 1. After the outer skin layer 1 is cast, it is cooled and formed to complete the extrusion process. The above is the process of casting the insulating glue on the surface of the cable.

[0042] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An aluminum alloy cable, characterized in that: include: An outer skin layer (1), an aluminum alloy conductor (5), a protective layer (4), a fireproof layer (2), a shielding layer (3), a water-blocking layer (13) and an aluminum alloy interlocking armor (14); The aluminum alloy conductor (5) is provided with a plurality of them, and the aluminum alloy conductor (5) is formed by winding and gluing a plurality of aluminum alloy wires; the protective layer (4) is provided with a plurality of them, and the plurality of protective layers (4) are respectively wrapped around the outside of the aluminum alloy conductor (5); the shielding layer (3) is formed by fusion casting of a plurality of shielding wires, and the shielding layer (3) wraps around the plurality of protective layers (4) and separates the plurality of protective layers (4); The fireproof layer (2) is arranged on the outer surface of the shielding layer (3), and the fireproof layer (2) is formed by melting and pouring inorganic heat-insulating particles on the surface of the shielding layer (3). The water-blocking layer (13) is wrapped around the outer surface of the fireproof layer (2), and the water-blocking layer (13) wraps around the aluminum alloy interlocking armor (14), and the surface of the aluminum alloy interlocking armor (14) wraps around the outer skin layer (1).

2. An aluminum alloy cable according to claim 1, characterized in that: An anti-ant layer (6) is also provided between the fireproof layer (2) and the water-blocking layer (13); the anti-ant layer (6) is formed by pouring a plurality of anti-ant strips at intervals on the outer surface of the fireproof layer (2); and the plurality of anti-ant strips are wrapped by the water-blocking layer (13) on the surface of the fireproof layer (2).

3. An aluminum alloy cable according to claim 2, characterized in that: The anti-termite strip is a colloid (101) made by dissolving and stirring an anti-termite drug and soluble particles. The colloid (101) can be attached to the fireproof layer (2).

4. The aluminum alloy cable according to claim 2, characterized in that: The fireproof layer (2) is a glass fiber layer; the fireproof layer (2) is one of the protective layers of the cable (12).

5. An insulation extrusion device for an aluminum alloy cable, characterized in that: Used for processing the aluminum alloy cable as described in any one of claims 1-4.

6. The insulation extrusion device for an aluminum alloy cable according to claim 5, characterized in that: The invention comprises a support (9), an extruder (7), and a pouring bucket (8); the extruder (7) is fixedly mounted on the support (9); the extruder (7) is a twin-screw extruder (7); the pouring bucket (8) is fixedly mounted at the output port of the extruder (7); a filling channel (10) is provided on the pouring bucket (8); the filling channel (10) can be used to transport a colloid (101); the colloid (101) can be attached to the fireproof layer (2) in the cable (12).

7. The insulation extrusion device for an aluminum alloy cable according to claim 6, characterized in that: A plastic channel is provided inside the pouring barrel (8), and the cable (12) passes through the plastic channel and penetrates the inside of the pouring barrel (8). An extrusion ring (11) is provided at the outlet of the pouring barrel (8), and the extrusion ring (11) comprises an extrusion shell (111), an extrusion hole (112), a feed port (113) and a ring strip (114); the extrusion ring (11) is in a circular ring shape, and a circular channel is provided inside the extrusion shell (111). A plurality of extrusion holes (112) are provided, and the plurality of extrusion holes (112) are arranged at regular intervals inside the extrusion shell (111). The ring strip (114) is provided between the plurality of extrusion holes (112). The feed port (113) is connected to the filling channel (10), and the colloid (101) enters the inside of the extrusion shell (111) through the filling channel (10) and the feed port (113).

8. The insulation extrusion device for an aluminum alloy cable according to claim 5, characterized in that: The invention also comprises a braiding component (15), wherein the braiding component (15) comprises a winding component (151), a cable transmission channel (152), an expansion ring (153) and a braiding motor (154); the cable transmission channel (152) runs through the entire braiding component (15); the braiding motor (154) provides power for the braiding component (15); a plurality of the winding components (151) are provided, and the plurality of the winding components (151) are all provided at the output end of the braiding motor (154); the plurality of the winding components (151) are arranged around the cable transmission channel (152) at a certain interval; the expansion ring (153) is provided at one side of the output end of the braiding motor (154) and on the cable transmission channel (152); and the cable transmission channel (152) runs through the expansion ring (153).

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