A type of pressure-resistant cable

Abstract

This utility model relates to a pressure-resistant cable, including a bracket and cables. The outer surface of the bracket has multiple arc-shaped grooves arranged coaxially at equal angles. The cables are placed within these arc-shaped grooves and distributed circumferentially on the outer side of the bracket. An inner sheath, a steel strip, and an outer sheath are sequentially arranged on the outer side of the bracket, with a filler layer between the inner sheath and the bracket. Multiple insertion holes are opened coaxially at equal angles on the outer surface of the bracket, with each insertion hole positioned between adjacent cables. A insertion rod is inserted into each insertion hole, and a rubber pad is placed at the end of the insertion rod within the insertion hole. When the cable is subjected to pressure, the insertion rod first slides within the insertion hole, compressing the rubber pad and providing initial cushioning. Subsequently, the bracket bears the remaining pressure. Through this dual action of cushioning followed by support, pressure is effectively prevented from acting directly on the cable, significantly reducing the risk of cable damage due to pressure and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, specifically to a pressure-resistant cable. Background Technology

[0002] A cable is a transmission cable composed of one or more mutually insulated conductors, usually encased in a protective sheath. It acts as a "high-speed channel" for information and energy, efficiently transmitting electricity to provide stable energy for urban lighting, industrial production, and other applications; it can also transmit data such as electrical and optical signals, supporting modern information exchange such as telephone communication, network connectivity, and television broadcasting.

[0003] Existing cables have poor resistance to deformation and pressure. In scenarios such as underground installation, cable tray installation, or being run over by vehicles, the internal conductors are prone to shifting or deforming due to external pressure, leading to cable damage. Utility Model Content

[0004] The purpose of this invention is to provide a pressure-resistant cable that effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A pressure-resistant cable includes a support and cables. The outer surface of the support has multiple arc-shaped grooves arranged coaxially at equal angles. The cables are arranged within these arc-shaped grooves and circumferentially distributed on the outer side of the support. An inner sheath, a steel strip, and an outer sheath are sequentially arranged on the outer side of the support, with a filler layer between the inner sheath and the support. Multiple insertion holes are formed coaxially at equal angles on the outer surface of the support, and these insertion holes are positioned between adjacent cables. A insertion rod is inserted into each insertion hole, and a rubber pad is provided at the end of the insertion rod located within the insertion hole.

[0007] Therefore, by using the bracket, plug, and rubber pad, when the cable is subjected to pressure, the plug will first slide within the socket and compress the rubber pad. At this time, the rubber pad absorbs energy through elastic deformation, playing a preliminary buffering role. When the rubber pad is compressed to its limit and the external pressure continues, the pressure is transmitted to the bracket through the plug, and the bracket bears the remaining pressure. Through the dual action of buffering and supporting, the pressure can be effectively prevented from acting directly on the cable, greatly reducing the possibility of cable damage due to pressure and improving service life.

[0008] Furthermore, the cable includes a core made of multiple conductors twisted together, with an inner shielding layer on the outer surface of the core, an insulation layer on the outer surface of the inner shielding layer, and an outer shielding layer on the outer surface of the insulation layer.

[0009] Furthermore, a pressure plate is provided at the end of the insertion rod away from the rubber pad, and the pressure plate has an arc-shaped structure.

[0010] Furthermore, multiple supports are provided at equal intervals, and rubber connecting plates connect adjacent supports.

[0011] Furthermore, both the socket and the insertion rod are non-circular structures.

[0012] Furthermore, the outer surface of the outer sheath is provided with an anti-corrosion layer.

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

[0014] This invention, through the arrangement of a bracket, a plug, and a rubber pad, allows the plug to slide within the socket and compress the rubber pad when the cable is subjected to pressure. The rubber pad then absorbs energy through elastic deformation, providing initial cushioning. When the rubber pad is compressed to its limit and external pressure continues, the pressure is transmitted to the bracket via the plug, which then bears the remaining pressure. This dual action of cushioning followed by support effectively prevents pressure from acting directly on the cable, significantly reducing the risk of cable damage due to pressure and extending its service life. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 2 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 3 This is a schematic diagram of the structure of the bracket and rubber connecting piece in this utility model.

[0018] In the diagram: 1. Bracket; 101. Arc groove; 102. Socket; 103. Insert rod; 104. Rubber pad; 105. Pressure plate; 2. Cable; 201. Wire core; 202. Inner shielding layer; 203. Insulation layer; 204. Outer shielding layer; 3. Inner sheath; 4. Steel strip; 5. Outer sheath; 6. Filler layer; 7. Rubber connecting piece. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-3This utility model provides a pressure-resistant cable, including a bracket 1 and a cable 2. The outer surface of the bracket 1 has multiple arc-shaped grooves 101 arranged coaxially at equal angles. The cable 2 is disposed within the arc-shaped grooves 101 and circumferentially distributed on the outer side of the bracket 1. An inner sheath 3, a steel strip 4, and an outer sheath 5 are sequentially arranged on the outer side of the bracket 1, with a filling layer 6 between the inner sheath 3 and the bracket 1. Multiple insertion holes 102 are opened coaxially at equal angles on the outer surface of the bracket 1, and the insertion holes 102 are located between adjacent cables 2. A insertion rod 103 is inserted into the insertion hole 102, and a rubber pad 104 is provided at the end of the insertion rod 103 located within the insertion hole 102.

[0021] When the cable is subjected to pressure, the plug rod 103 will first slide within the socket 102 and compress the rubber pad 104. At this time, the rubber pad 104 elastically deforms to absorb energy, playing a preliminary buffering role. When the rubber pad 104 is compressed to its limit and the external pressure continues, the pressure is transmitted to the bracket 1 through the plug rod 103, and the bracket 1 bears the remaining pressure. Through the dual action of buffering and supporting, the pressure can be effectively prevented from acting directly on the cable 2, greatly reducing the possibility of cable damage due to pressure and improving service life.

[0022] The steel strip 4 further enhances the cable's compressive strength and provides protection against impacts, punctures, and insect bites, preventing external interference to the cable 2. The steel strip 4 is fitted with an inner sheath 3 and an outer sheath 5 on its inner and outer sides, respectively, creating a sandwich-like protection system that ensures the structural integrity of the steel strip 4 and prevents it from scratching the filling layer 6.

[0023] The filler layer 6 is made of flame-retardant polyethylene foam, which is flexible, lightweight, and easy to process. It also has a certain deformation capacity, which can play a certain role in buffering and resisting pressure when the cable is subjected to external pressure.

[0024] The bracket 1 is made of glass fiber reinforced plastic, which not only provides high-strength support, but also has low density and light weight, only 1 / 4 the weight of steel, which can reduce the overall weight of the cable, and also has insulation to avoid the risk of leakage.

[0025] Preferably, the cable 2 includes a core 201 formed by twisting multiple conductors, an inner shielding layer 202 is provided on the outer surface of the core 201, an insulation layer 203 is provided on the outer surface of the inner shielding layer 202, and an outer shielding layer 204 is provided on the outer surface of the insulation layer 203.

[0026] The inner shielding layer 202 eliminates the electric field distortion on the surface of the conductor 201, the insulation layer 203 isolates the high voltage and limits the electric field, and the outer shielding layer 204 uniformly insulates the electric field on the surface, thereby improving the insulation reliability and ensuring the safe transmission of power.

[0027] Preferably, a pressure plate 105 is provided at the end of the insertion rod 103 away from the rubber pad 104, and the pressure plate 105 has an arc-shaped structure.

[0028] By increasing the force-bearing area through the pressure plate 105, the cable is protected from being punctured by the plug rod 103 when subjected to external force, thus ensuring its structural integrity. Furthermore, when the pressure plate 105 moves the plug rod 103 within the socket 102, the pressure plate 105 also applies pressure to the filler layer 6, increasing the elastic resistance of the plug rod 103 and further enhancing its compressive strength.

[0029] Preferably, multiple brackets 1 are provided at equal intervals, and a rubber connecting piece 7 connects two adjacent brackets 1.

[0030] The brackets 1 are connected together by the rubber connecting piece 7 to form an integral structure, which facilitates the assembly of cables. The arc groove 101 provides compressive support, while the rubber connecting piece 7 has the ability to deform, allowing the cable to be bent and wound on the cable reel.

[0031] Preferably, both the socket 102 and the insertion rod 103 are non-circular structures.

[0032] The design of non-circular structures, such as square or hexagonal shapes, ensures that the insertion rod 103 can only move within the insertion hole 102 at a fixed angle, preventing the insertion rod 103 from twisting and ensuring structural stability.

[0033] Preferably, the outer surface of the outer sheath 5 is provided with an anti-corrosion layer.

[0034] The anti-corrosion layer protects the cable from environmental corrosion, extends its service life, and ensures the stability and safety of power transmission.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure-resistant cable, comprising a support (1) and a cable (2), characterized in that: The outer surface of the bracket (1) is provided with multiple arc-shaped grooves (101) at equal angles on the same axis, and the cable (2) is arranged in the arc-shaped grooves (101) and distributed circumferentially on the outside of the bracket (1); The outer side of the bracket (1) is provided with an inner sheath (3), a steel strip (4) and an outer sheath (5) in sequence, and a filling layer (6) is provided between the inner sheath (3) and the bracket (1). The outer surface of the bracket (1) is provided with a plurality of sockets (102) at equal angles and coaxially, and the sockets (102) are located between two adjacent cables (2); A plug rod (103) is inserted into the socket (102), and a rubber pad (104) is provided at the end of the plug rod (103) located inside the socket (102).

2. The pressure-resistant cable according to claim 1, characterized in that: The cable (2) includes a core (201) formed by twisting multiple conductors together. An inner shielding layer (202) is provided on the outer surface of the core (201). An insulation layer (203) is provided on the outer surface of the inner shielding layer (202). An outer shielding layer (204) is provided on the outer surface of the insulation layer (203).

3. The pressure-resistant cable according to claim 1, characterized in that: The end of the insertion rod (103) away from the rubber pad (104) is provided with a pressure plate (105), and the pressure plate (105) has an arc-shaped structure.

4. The pressure-resistant cable according to claim 1, characterized in that: The bracket (1) is provided in multiple and equally spaced positions, and a rubber connecting piece (7) is connected between two adjacent brackets (1).

5. A pressure-resistant cable according to claim 1, characterized in that: Both the insertion hole (102) and the insertion rod (103) are non-circular structures.

6. A pressure-resistant cable according to claim 1, characterized in that: The outer surface of the outer sheath (5) is provided with an anti-corrosion layer.

Images