Longitudinal watertight cable for ship

Abstract

The utility model belongs to the technical field of cable equipment, and particularly relates to a longitudinal watertight cable for ships, which comprises a lead, an insulating layer, a shielding layer and an outer sheath are sequentially distributed on the surface of the lead from inside to outside, and the lead is filled with water-blocking glue during wire bundling. Gaps between every two adjacent layers of the wires, the insulating layer, the shielding layer and the outer sheath are filled with water-blocking glue, the outer surface of the outer sheath is fixedly connected with a plurality of protruding particles, and the shielding layer is formed by mixing and weaving steel wires and copper wires. According to the longitudinal watertight cable for the ship, contact friction between the surface of the outer sheath and the outside is reduced, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable equipment, and in particular relates to a longitudinal watertight cable for ships. Background Art

[0002] Watertight cables are an important part of underwater sonar equipment. According to the sealing method, they are divided into two types: transverse watertight cables and longitudinal watertight cables. Longitudinal watertight cables use water-blocking glue or foaming water-blocking tape to slow down the flow of water inside the cable when the sheath is damaged, thereby improving the stability and reliability of the equipment. Traditional watertight cables are sealed with water-blocking paste or water-blocking tape. The water-blocking paste solidifies at room temperature and tightly connects the various component structures together to achieve a water-blocking effect.

[0003] For example, a Chinese patent (authorization announcement number: CN 210896725 U) discloses a longitudinal watertight cable for ships, including several cores, the outer periphery of the cores is provided with a water-blocking tape, the space between the water-blocking tape and the cores is filled with sealant, the outer periphery of the water-blocking tape is provided with an inner sheath, the outer periphery of the inner sheath is provided with a reinforcement layer, and the outer periphery of the reinforcement layer is provided with an outer sheath; the outer periphery of the cores is wrapped with a water-blocking tape, and the gaps between the cores in the water-blocking tape are filled with sealant, which can greatly improve the water-blocking effect of the cable and meet the requirements of air tightness and water tightness, and the inner and outer sheaths can improve the corrosion resistance of the cable, and the reinforcement layer can enable the cable to withstand greater water pressure, with good water-blocking effect, which can meet high water pressure occasions and meet the airtight requirements at the same time.

[0004] However, in the above scheme, since the outer sheath surface of the watertight cable is in direct contact and friction with the outside during use, long-term friction can easily cause the sheath to be damaged, further damaging the cable, resulting in a shortened service life of the cable. Utility Model Content

[0005] The purpose of the utility model is to provide a longitudinal watertight cable for ships, reduce the contact friction between the outer sheath surface and the outside world, and extend the service life of the cable.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] A longitudinal watertight cable for ships, comprising a conductor, the surface of which is sequentially distributed with an insulating layer, a shielding layer and an outer sheath from the inside to the outside, the conductor being filled with water-blocking glue when being bundled, the gaps between the conductor, the insulating layer, the shielding layer and the adjacent layers of the outer sheath being filled with water-blocking glue, the outer surface of the outer sheath being fixedly connected with a plurality of protruding particles, and the shielding layer being a mixed braid of steel wire and copper wire. The gaps between the conductor, the insulating layer, the shielding layer and the outer sheath are all filled with water-blocking glue, and the multi-layer water-blocking structure can provide good water-blocking protection for the cable; the outer surface of the outer sheath is provided with a plurality of protruding particles, and the contact surface of the protruding particles in contact and friction with external hard objects is very small, which protects the outer sheath; the shielding layer is provided with a mixed braid of steel wire and copper wire, which not only provides a shielding effect, but also provides a tensile resistance effect.

[0008] It is further defined that a wrapping tape is wrapped between the shielding layer and the outer sheath, and the gap between the wrapping tape and the shielding layer and the outer sheath is filled with water-blocking glue. The wrapping tape can make multiple wires fit together more closely, and the filling of water-blocking glue can provide better water-blocking protection for the cable.

[0009] It is further defined that a reinforcement layer is provided between the wrapping tape and the outer sheath, the gap between the reinforcement layer and the wrapping tape and the outer sheath is filled with water-blocking glue, and the reinforcement layer is a mixed braid of steel wire and copper wire. Adding a reinforcement layer can achieve better shielding and tensile effects, and filling with water-blocking glue can provide better water-blocking protection for the cable.

[0010] It is further defined that an inner sheath is provided between the wrapping tape and the reinforcement layer, and the gaps between the inner sheath, the wrapping tape and the reinforcement layer are filled with water-blocking glue. Adding the inner sheath can achieve a better tensile resistance, and filling the water-blocking glue can provide a better water-blocking protection for the cable.

[0011] It is further defined that the steel wire accounts for 60%-80% of the reinforcement layer and the copper wire accounts for 20%-40%; the steel wire accounts for 20%-40% of the shielding layer and the copper wire accounts for 60%-80%. The reinforcement layer is closer to the outer layer and focuses on the tensile effect; the shielding layer is closer to the inner layer and focuses on the shielding effect.

[0012] It is further defined that a plurality of filling strips are arranged in the gap between the shielding layer and the outer sheath. Adding the filling strips can provide better water-blocking protection and tensile resistance for the cable.

[0013] It is further defined that the water-blocking glue is a chloroprene rubber sealant specially prepared for watertight cables using chloroprene rubber as a base material. Compared with traditional water-blocking materials, chloroprene rubber sealant has the advantages of good water resistance, high bonding strength, wide application, good bonding property, etc.

[0014] The utility model adopting the above technical solution has the following advantages:

[0015] 1. The gaps between the conductors, insulation layer, shielding layer and outer sheath are filled with water-blocking glue. The multi-layer water-blocking structure can provide good water-blocking protection for the cable. The outer surface of the outer sheath is provided with a plurality of raised particles. The contact surface of the raised particles and the external hard objects is very small, which protects the outer sheath. The shielding layer is set to a mixed braid of steel wire and copper wire, which not only plays a shielding role, but also plays a tensile role.

[0016] 2. Between the shielding layer and the outer sheath, there are wrapping tape, inner sheath and reinforcement layer from inside to outside, and the gaps are filled with water-blocking glue to achieve better shielding effect, tensile resistance and water-blocking protection effect.

[0017] 3. Arranging multiple filling strips in the gap between the shielding layer and the outer sheath can provide better water-blocking protection and tensile resistance for the cable.

[0018] 4. The water-blocking glue adopts chloroprene rubber sealant specially used for watertight cables, which is formulated with chloroprene rubber as the base material. Compared with traditional water-blocking materials, chloroprene rubber sealant has the advantages of good water resistance, high bonding strength, wide application and good adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 The utility model is a cross-sectional view of a longitudinal watertight cable for ships.

[0021] The main component symbols are described as follows:

[0022] Conductor 1, insulation layer 2, shielding layer 3, filling strip 4, wrapping tape 5, inner sheath 6, reinforcement layer 7, outer sheath 8, raised particles 9. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or in the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0024] like Figure 1As shown, a longitudinal watertight cable for ships is provided with a conductor 1, an insulating layer 2, a shielding layer 3, a wrapping tape 5, an inner sheath 6, a reinforcing layer 7 and an outer sheath 8 from the inside to the outside, and the gaps between adjacent layers are filled with a watertight cable-specific chloroprene rubber sealant prepared with chloroprene rubber as the base material. A plurality of filling strips 4 are inserted into the gap between the shielding layer 3 and the wrapping tape 5, and a plurality of protruding particles 9 are fixedly connected to the outer surface of the outer sheath 8. The shielding layer 3 and the reinforcing layer 7 are mixed and woven with steel wire and copper wire, wherein the steel wire accounts for 20%-40% of the shielding layer 3, and the copper wire accounts for 60%-80%. In this embodiment, the steel wire accounts for 30% and the copper wire accounts for 70%; the steel wire accounts for 60%-80% of the reinforcing layer 7, and the copper wire accounts for 20%-40%. In this embodiment, the steel wire accounts for 70% and the copper wire accounts for 30%.

[0025] The usage and principle of this embodiment are as follows:

[0026] Since the outer surface of the outer sheath 8 is fixedly connected with a plurality of raised particles 9, when the raised particles 9 come into contact and rub against external hard objects, the contact area between the raised particles 9 and the external hard objects is very small, which provides good protection for the outer sheath. Since the shielding layer 3 is close to the conductor 1, a strong shielding effect is required. The shielding layer 3 adopts a mixed weaving of 30% steel wire and 70% copper wire. Since the reinforcement layer 7 is close to the outer sheath 8, a strong tensile effect is required. The reinforcement layer 7 adopts a mixed weaving of 70% steel wire and 30% copper wire. Multiple filling strips 4 are inserted into the gap between the shielding layer 3 and the wrapping tape 5. The filling strips 4 are mixed with water-blocking glue to provide better water-blocking protection and tensile resistance for the cable. The water-blocking glue adopts a special chloroprene rubber sealing glue for watertight cables formulated with chloroprene rubber as the base material. Compared with traditional water-blocking materials, it has the advantages of good water resistance, high bonding strength, wide application, and good bonding.

[0027] The above is a detailed introduction to a longitudinal watertight cable for ships provided by the utility model. The description of the specific embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A longitudinal watertight cable for ships, comprising a conductor (1), wherein the surface of the conductor (1) is provided with an insulating layer (2), a shielding layer (3) and an outer sheath (8) in sequence from the inside to the outside, and wherein: The conductor (1) is filled with water-blocking glue when being bundled, the gaps between two adjacent layers of the conductor (1), the insulating layer (2), the shielding layer (3) and the outer sheath (8) are all filled with water-blocking glue, a plurality of protruding particles (9) are fixedly connected to the outer surface of the outer sheath (8), and the shielding layer (3) is a mixed braid of steel wire and copper wire.

2. A longitudinal watertight cable for ships according to claim 1, characterized in that: A wrapping tape (5) is wrapped between the shielding layer (3) and the outer sheath (8), and a gap between the wrapping tape (5) and the shielding layer (3) and the outer sheath (8) is filled with a water-blocking adhesive.

3. A longitudinal watertight cable for ships according to claim 2, characterized in that: A reinforcement layer (7) is provided between the wrapping tape (5) and the outer sheath (8); gaps between the reinforcement layer (7) and the wrapping tape (5) and the outer sheath (8) are filled with water-blocking glue; the reinforcement layer (7) is a mixed braid of steel wire and copper wire.

4. A longitudinal watertight cable for ships according to claim 3, characterized in that: An inner sheath (6) is provided between the wrapping tape (5) and the reinforcing layer (7), and a gap between the inner sheath (6), the wrapping tape (5) and the reinforcing layer (7) is filled with a water-blocking adhesive.

5. A longitudinal watertight cable for ships according to claim 1, characterized in that: A plurality of filling strips (4) are arranged in the gap between the shielding layer (3) and the outer sheath (8).

Images