Low-attenuation electric wire

Abstract

The utility model relates to a low-attenuation wire, which comprises a separation pipe, five separation cavities are arranged in the separation pipe, a coating pipe is arranged on the outer surface of the separation pipe, four positioning strips are uniformly distributed on the inner surface of the coating pipe, and buffer blocks are uniformly distributed on the outer surface of the coating pipe. The end, away from the wrapping pipe, of the buffer block is connected with a protection pipe. The protection pipe is sequentially provided with a heat-resisting layer, a heat dissipation layer, a waterproof layer, an insulating layer and an anti-cracking layer from inside to outside. By arranging the buffer block, a buffer space is formed between the coating pipe and the protective pipe, impact on the coating pipe is reduced, good insulativity is achieved, and electric power in the coating pipe is prevented from leaking to the protective pipe; by arranging the anti-cracking layer, the safety performance is improved, and the situation that the insulation effect is affected due to the fact that the insulation layer is aged, broken and dropped in the long-term exposure process is prevented; and through the arrangement of the separation pipes, the copper guide wires are arranged in order, and internal lines are prevented from being knotted.

Description

Technical Field

[0001] The utility model relates to the technical field of low-attenuation electric wires, in particular to a low-attenuation electric wire. Background Art

[0002] Wires refer to conductors that transmit electrical energy. Low-attenuation wires are a commonly used type of cable. Existing low-attenuation wires have poor impact resistance and are easily cracked and lose their insulation effect when accidentally stepped on. In addition, the insulating rubber is prone to aging and cracking when exposed to the sun for a long time outdoors, posing a safety hazard. Therefore, we designed a low-attenuation wire.

[0003] Patent number CN202120331877.4 is a Chinese utility model patent, which discloses a low-attenuation anti-interference coaxial radio frequency cable, including a cable core, a polyurethane protective layer, a shielding layer, an inner insulating layer, and an outer insulating layer. The cable core is made of copper with good conductivity, and the outer periphery of the cable core is wrapped with a polyurethane protective layer. The outer side of the polyurethane protective layer is provided with a shielding layer. The shielding layer is designed in a threaded shape, and the outer periphery of the shielding layer is wrapped with an inner insulating layer, and the outer side of the inner insulating layer is wrapped with an outer insulating layer. The surface of the outer insulating layer is provided with a threaded wire that increases friction. , and the thread line is protruding, four ribs are provided on the inner insulating layer, the four ribs are symmetrically arranged along the center of the inner insulating layer, the surface of the cable core is provided with grooves, the grooves are distributed along the surface of the cable core, the cable core, polyurethane protective layer, shielding layer, inner insulating layer, and outer insulating layer are all coaxially arranged; the design of the utility model is reasonable; the thread line on the outer insulating layer increases the friction and is easy to drag, but the utility model has the following problems: first, it does not have the function of buffering protection, and when the wire is stepped on from the outside, the damage rate is high; secondly, it does not have a design to reduce the cracking of the insulating layer. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and to solve the technical problems that the existing low-attenuation electric wires have poor impact resistance, are easily cracked by accidental trampling and lose their insulation effect, and the insulating rubber is easily aged and cracked when exposed for a long time, thus posing a safety hazard, by arranging a buffer block, an anti-cracking layer and a separating tube.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-attenuation electric wire comprises a separator tube, wherein five separator cavities are arranged inside the separator tube, and a covering tube is arranged on the outer surface of the separator tube, four positioning strips are evenly distributed on the inner surface of the covering tube, and buffer blocks are evenly distributed on the outer surface of the covering tube, and one end of the buffer block away from the covering tube is connected to a protective tube, and the protective tube comprises a heat-resistant layer, a heat dissipation layer, a waterproof layer, an insulating layer, and an anti-cracking layer from the inside to the outside.

[0007] As a preference, the separation tube is a cross structure, a copper guide wire is provided in the separation cavity, and the lower end of the positioning bar abuts against the separation tube and is located between the separation cavities.

[0008] Preferably, the sheathing tube comprises a supporting layer, the supporting layer is made of a high-strength rubber material, a fireproof layer is provided on the outer surface of the supporting layer, and a flame-retardant layer is provided on the outer surface of the fireproof layer.

[0009] Preferably, the buffer block comprises a buffer body, the buffer body is connected to a buffer protrusion at the middle of one end away from the sheathing tube, and grooves are symmetrically provided on the left and right sides of the buffer body away from the sheathing tube, and the buffer protrusion is connected to a protective tube at one end away from the sheathing tube.

[0010] As a preference, the heat-resistant layer is a heat-resistant and flame-resistant fiber layer, the heat dissipation layer is a thermally conductive silicone layer, and heat dissipation grooves are evenly distributed on the outer surface of the heat dissipation layer.

[0011] Preferably, the waterproof layer is an emulsion waterproof coating layer, and the anti-cracking layer is a glass fiber mesh cloth layer, and the alkali-resistant tensile breaking strength in the warp and weft directions is not less than 750 Newtons per 50 mm.

[0012] Beneficial effects of the utility model:

[0013] (1) In the utility model, a buffer block is provided to form a buffer space between the sheathing tube and the protective tube. When the electric wire is subjected to external trampling impact, the protective tube and the buffer block deform to consume energy, thereby further reducing the impact on the sheathing tube. On the other hand, the buffer block is made of polytetrafluoroethylene, which has good insulation properties, thereby preventing the electric current in the sheathing tube from being directed to the protective tube.

[0014] (2) In the present invention, the anti-cracking layer is provided to increase safety performance. The anti-cracking layer is wrapped around the outside of the insulating layer to prevent the insulating layer from aging and breaking and falling during long-term exposure, thereby affecting the insulating effect.

[0015] (3) In the present invention, the copper wires are separated and protected by providing separation tubes, so that the copper wires are arranged in an orderly manner to prevent the internal lines from being tangled.

[0016] In summary, the utility model has the advantages of simple structure, good insulation and good buffering protection, and is particularly suitable for the field of low attenuation wire technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 Schematic diagram of the structure of low attenuation wire.

[0019] Figure 2 It is a schematic diagram of the structure of the cladding tube part.

[0020] Figure 3 It is a schematic diagram of the structure of the heat dissipation layer A.

[0021] Figure 4 It is a schematic diagram of the structure of the protective tube part. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] like Figures 1 to 4 As shown, the utility model provides a low-attenuation electric wire, including a separator tube 1, wherein the separator tube 1 is provided with 5 separator cavities 11 inside, and a plurality of copper guide wires 12 originally gathered together are evenly distributed in the 5 separator cavities 11, and the outer surface of the separator tube 1 is provided with a covering tube 2, and the inner surface of the covering tube 2 is evenly distributed with four positioning strips 21, which define the installation position between the covering tube 2 and the separator tube 1, and speed up the assembly speed, and the outer surface of the covering tube 2 is evenly distributed with buffer blocks 3, so that a buffer space is formed between the covering tube 2 and the protective tube 4, when the electric wire is stepped on by the outside When the pedal is impacted, the protective tube 4 and the buffer block 3 deform to consume energy, further reducing the impact on the sheathed tube 2. On the other hand, the buffer block 3 is made of polytetrafluoroethylene and has good insulation properties, preventing the electricity in the sheathed tube 2 from flowing to the protective tube 4. The buffer block 3 is connected to the protective tube 4 at one end away from the sheathed tube 2. The protective tube 4 includes a heat-resistant layer 41, a heat dissipation layer 42, a waterproof layer 43, an insulating layer 44, and an anti-cracking layer 45 from the inside to the outside. The protective tube 4 is the outermost layer of the low-attenuation electric wire, which has a good protective effect on the sheathed tube 2 and reduces the possibility of damage to the internal components of the sheathed tube 2.

[0025] Further, if Figure 1As shown, the separator tube 1 is a cross structure, has good stability, can withstand large loads, and has good shock resistance. A copper guide wire 12 is provided in the separator cavity 11. The separator cavity 11 separates and protects the copper guide wire 12, so that the copper guide wire 12 is arranged in order to prevent the internal line from being tangled. The lower end of the positioning strip 21 abuts the separator tube 1 and is located between the separator cavities 11. The positioning strip 21 not only limits the installation position between the sheathing tube 2 and the separator tube 1, but also increases the contact area between the two, so that the connection between the two is firm and excessive deformation of the sheathing tube 2 is prevented.

[0026] Further, if Figure 2 As shown, the sheathing tube 2 includes a supporting layer 22, which is made of high-strength rubber material and provides adequate protection and stability. A fireproof layer 23 is provided on the outer surface of the supporting layer 22, and a flame retardant layer 24 is provided on the outer surface of the fireproof layer 23. The flame retardant layer 24 is a flame retardant rubber applied to the outside of the fireproof layer 23 to prevent flame burns and flame spread caused by external flames and internal short circuits, and can quickly stop the spread of fire.

[0027] Further, if Figure 1 As shown, the buffer block 3 includes a buffer body 31, and the buffer body 31 is connected to a buffer protrusion 32 at the middle of one end away from the sheathing tube 2, and the buffer body 31 is symmetrically provided with grooves 33 at one end away from the sheathing tube 2, and the buffer protrusion 32 is connected to the protective tube 4 at one end away from the sheathing tube 2. The buffer body 31, the buffer protrusion 32, and the groove 33 are arranged so that the entire buffer block 3 is an anisotropic block, and its circumference is increased, so that the buffer block 3 is easier to deform when subjected to pressure, and the stress dissipation is increased, thereby consuming more impact force.

[0028] Further, if Figure 4 As shown, the heat-resistant layer 41 is a heat-resistant and flame-resistant fiber layer, which is a special fiber with flame-resistant properties and is used for heat-resistant materials. It can decompose non-combustible gases under combustion conditions to convert the fibers into a stable chemical structure. The heat dissipation layer 42 is a thermally conductive silicone layer with good thermal conductivity and high-level pressure resistance, and heat dissipation grooves 421 are evenly distributed on the outer surface of the heat dissipation layer 42, thereby increasing the heat dissipation area of ​​the heat dissipation layer 42.

[0029] Furthermore, the waterproof layer 43 is an emulsion waterproof coating layer, which has good permeability, film-forming property, water resistance, elasticity, adhesion and high and low temperature resistance. The emulsion waterproof coating is applied on the surface of the conductive silicone to increase the waterproof effect, prevent external water vapor from invading, and increase safety. The anti-cracking layer 45 is a glass fiber mesh cloth layer, and its warp and weft alkali-resistant tensile breaking strength are not less than 750 Newtons per 50 mm. Because the insulating layer 44 is a thin rubber, it is easy to crack or even break and fall after being exposed to the outside for a long time, which increases the risk of conductivity. The anti-cracking layer 45 covers the insulating layer 44, reduces the movement range of the insulating layer 44 fragments, and increases insulation safety.

[0030] Working process: first, insert the copper guide wire into the partition cavity 11 in an orderly and even manner, and then fix the buffer block 3 and the partition tube 1 with the positioning strip 21 aligned between adjacent partition cavities 11; further, use glue to fix the four buffer blocks 3 on the outer circumferential surface of the sheathing tube 2; further, glue the protective tube 4 on the outer surface of the buffer block 3, and the assembly is completed.

[0031] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0032] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A low attenuation electric wire, characterized in that: The invention comprises a partition tube (1), wherein five partition chambers (11) are arranged inside the partition tube (1), and a covering tube (2) is arranged on the outer surface of the partition tube (1), four positioning strips (21) are evenly distributed on the inner surface of the covering tube (2), and a buffer block (3) is evenly distributed on the outer surface of the covering tube (2), and one end of the buffer block (3) away from the covering tube (2) is connected to a protective tube (4), and the protective tube (4) comprises, from the inside to the outside, a heat-resistant layer (41), a heat dissipation layer (42), a waterproof layer (43), an insulating layer (44), and an anti-cracking layer (45).

2. A low attenuation electric wire according to claim 1, characterized in that: The separation tube (1) is a cross structure, a copper guide wire (12) is provided in the separation cavity (11), and the lower end of the positioning strip (21) abuts against the separation tube (1) and is located between the separation cavities (11).

3. A low attenuation electric wire according to claim 1, characterized in that: The cladding tube (2) comprises a supporting layer (22), the supporting layer (22) is made of a high-strength rubber material, a fireproof layer (23) is provided on the outer surface of the supporting layer (22), and a flame retardant layer (24) is provided on the outer surface of the fireproof layer (23).

4. A low attenuation electric wire according to claim 3, characterized in that: The buffer block (3) comprises a buffer body (31), the middle part of one end of the buffer body (31) away from the covering tube (2) is connected to a buffer protrusion (32), and the end of the buffer body (31) away from the covering tube (2) is symmetrically provided with grooves (33), and the end of the buffer protrusion (32) away from the covering tube (2) is connected to the protective tube (4).

5. A low attenuation electric wire according to claim 4, characterized in that: The heat-resistant layer (41) is a heat-resistant and flame-resistant fiber layer, the heat dissipation layer (42) is a heat-conductive silica gel layer, and the outer surface of the heat dissipation layer (42) is evenly distributed with heat dissipation grooves (421).

6. A low attenuation electric wire according to claim 2, characterized in that: The waterproof layer (43) is an emulsion waterproof coating layer, and the anti-cracking layer (45) is a glass fiber mesh cloth layer, and its warp and weft alkali-resistant tensile breaking strength is not less than 750 Newtons per 50 millimeters.

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