Moistureproof cable

Abstract

The utility model discloses a moisture-proof cable which comprises a supporting frame, through holes are formed in the inner side of the supporting frame at equal intervals, cable cores are installed in the through holes, water absorption sponges are installed on the outer wall of the supporting frame, and the water absorption sponges and the supporting frame are combined to form a circular structure. The outer wall of the circular structure is sequentially wrapped with an outer insulating layer, an outer shielding layer and an outer sheath layer, clamping grooves are formed in the positions, close to the edge end, of the outer wall of the supporting frame, and the clamping grooves are arranged at equal intervals in the axial direction of the supporting frame. The water absorbent is arranged in the groove, the water absorbent sponge expands when absorbing excessive water, the water absorbent sponge is extruded to extrude the water, the water absorbent can transfer the water absorbed by the water absorbent sponge through the arranged water absorbent, so that the water is absorbed by the water absorbent, and the absorbing capacity of the water absorbent sponge is further improved. And the water-absorbing sponge has good elasticity, so that the water-absorbing sponge can be further used for absorbing impact force possibly borne by the outer side of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a moisture-proof cable. Background Art

[0002] Cables are widely used, and are commonly used in power systems, information transmission systems, etc. Different regions have different performance requirements for power cables. For example, in ports, docks, reservoirs, tunnels and other areas, cables are mostly installed in the air or underground or underwater for telecommunications or power transmission. Due to the high humidity, when cables are transmitting electricity or communications, the lack of a moisture-proof layer in the cables can easily cause oxidation of the shielding layer, reducing the shielding effect and thus interrupting the power transmission.

[0003] Although existing cables can be equipped with absorbent sponges to absorb moisture, the absorbent sponges are generally placed on the inside of the cable to provide final protection for the cable core. At this time, the outer side of the cable will be exposed to moisture for a long time, which will cause the cable to rot, resulting in ineffective anti-interference performance and shielding, and reducing the service life of the cable.

[0004] Therefore, it is necessary to provide a moisture-proof cable to solve the above technical problems. Utility Model Content

[0005] The purpose of the present invention is to provide a moisture-proof cable to solve the problems existing in the above-mentioned background technology. The technical solution of the present invention is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a moisture-proof cable, comprising a support frame, the inner side of the support frame is provided with through holes equidistantly opened and cable cores are installed, the outer wall of the support frame is installed with a water-absorbing sponge, and the water-absorbing sponge and the support frame are combined into a circular structure, the outer wall of the circular structure is wrapped with an outer insulation layer, an outer shielding layer and an outer sheath layer in sequence.

[0007] Preferably, the outer wall of the support frame is provided with a card slot near the edge end, and the card slots are arranged at equal distances along the axial direction of the support frame. The interior of the card slot is engaged with a fixing rod connected to the water-absorbing sponge.

[0008] Preferably, the cable core is composed of a conductor, an inner insulating layer and an inner shielding layer from the inside out.

[0009] Preferably, grooves are provided at equal intervals in the center of the outer wall of the support frame along the axial direction of the support frame, and water absorbent is provided inside the grooves.

[0010] Preferably, the outer insulating layer and the inner insulating layer are both made of PVC polyethylene material.

[0011] Preferably, the outer shielding layer and the inner shielding layer are both composed of metallized paper and copper tape, and the copper tape is arranged on the outside of the metallized paper.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Even if the outer insulation layer and outer shielding layer on the outside of the cable leak water and rot, thus failing to effectively provide anti-interference and shielding, the inner insulation layer and inner shielding layer can still further protect the conductor;

[0014] 2. The utility model is provided with a water absorbent inside the groove. When the water absorbent sponge absorbs excessive water, it will expand. At this time, the water absorbent sponge will be squeezed to squeeze out the water. The water absorbed by the water absorbent sponge can be transferred through the provided water absorbent, so that it can be absorbed by the water absorbent, thereby further improving the absorption capacity of the water absorbent sponge. The water absorbent sponge itself has good elasticity, and can further be used to absorb the impact force that the outside of the cable may be subjected to. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of the utility model;

[0016] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a partial three-dimensional diagram of the support frame in the present invention.

[0018] In the figure: 1. Support frame; 2. Cable core; 201. Conductor; 202. Inner insulation layer; 203. Inner shielding layer; 3. Water-absorbing sponge; 4. Outer insulation layer; 5. Outer shielding layer; 6. Outer sheath layer; 7. Slot; 8. Fixing rod; 9. Groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are 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. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. 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, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0021] See also Figure 1-3 A moisture-proof cable includes a support frame 1, the inner side of the support frame 1 is equidistantly provided with through holes on which cable cores 2 are installed, the outer wall of the support frame 1 is installed with water-absorbing sponges 3, and the water-absorbing sponges 3 and the support frame 1 are combined into a circular structure, the outer wall of the circular structure is sequentially wrapped with an outer insulating layer 4, an outer shielding layer 5 and an outer sheath layer 6.

[0022] like Figure 1-3 As shown, the outer wall of the support frame 1 is provided with a card slot 7 near the edge end, and the card slot 7 is equidistantly arranged along the axial direction of the support frame 1. The internal card slot 7 is connected to a fixing rod 8 connected to the water-absorbing sponge 3. The water-absorbing sponge 3 can be fixed to the outer wall of the support frame 1 through the provided card slot 7 and the fixing rod 8, and the outer wall of the water-absorbing sponge 3 will be wrapped with an outer insulating layer 4, an outer shielding layer 5 and an outer sheath layer 6 in sequence to further fix the water-absorbing sponge 3. The water-absorbing sponge 3 itself has good elasticity, and can further be used to absorb the impact force that the outside of the cable may be subjected to.

[0023] like Figure 1-3 As shown, the cable core 2 is composed of a conductor 201, an inner insulating layer 202 and an inner shielding layer 203 from the inside out. Even if the outer insulating layer 4 and the outer shielding layer 5 on the outside of the cable leak water and rot, and thus cannot effectively perform anti-interference and shielding, the inner insulating layer 202 and the inner shielding layer 203 can further protect the conductor 201.

[0024] like Figure 1-3As shown, grooves 9 are equidistantly provided at the center of the outer wall of the support frame 1 along the axial direction of the support frame 1, and a water absorbent is provided inside the groove 9. The water source absorbed by the water-absorbing sponge 3 can be transferred through the provided water-absorbing agent, thereby further improving the absorption capacity of the water-absorbing sponge 3.

[0025] like Figure 1-3 As shown, the outer insulating layer 4 and the inner insulating layer 202 are both made of PVC polyethylene material, which has good insulation performance.

[0026] like Figure 1-3 As shown, the outer shielding layer 5 and the inner shielding layer 203 are both made of metallized paper and copper tape, and the copper tape is arranged on the outside of the metallized paper. The outer shielding layer 5 and the inner shielding layer 203 use metallized paper and copper tape to achieve good shielding performance.

[0027] Working principle: The water-absorbing sponge 3 can be fixed to the outer wall of the support frame 1 through the provided card slot 7 and the fixing rod 8, and the outer wall of the water-absorbing sponge 3 will be wrapped with the outer insulation layer 4, the outer shielding layer 5 and the outer sheath layer 6 in sequence to further fix the water-absorbing sponge 3. The water-absorbing sponge 3 itself has good elasticity, and can further be used to absorb the impact force that the outside of the cable may be subjected to. Even if the outer insulation layer 4 and the outer shielding layer 5 on the outside of the cable leak water and rot, thereby failing to effectively perform anti-interference and shielding, the conductor 201 can be further protected by the provided inner insulation layer 202 and the inner shielding layer 203. A water-absorbing agent is provided inside the groove 9. The water-absorbing sponge 3 will expand when it absorbs excess water. At this time, the water-absorbing sponge 3 will be squeezed to squeeze out the water. The water absorbed by the water-absorbing sponge 3 can be transferred through the provided water-absorbing agent, thereby being absorbed by the water-absorbing agent, further improving the absorption capacity of the water-absorbing sponge 3.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A moisture-proof cable, comprising a support frame (1), characterized in that: The inner side of the support frame (1) is provided with through holes at equal intervals and the cable core (2) is installed thereon. The outer wall of the support frame (1) is provided with a water-absorbing sponge (3). The water-absorbing sponge (3) and the support frame (1) are combined into a circular structure. The outer wall of the circular structure is sequentially wrapped with an outer insulating layer (4), an outer shielding layer (5) and an outer sheath layer (6).

2. A moisture-proof cable according to claim 1, characterized in that: The outer wall of the support frame (1) is provided with a card slot (7) near the edge end. The card slots (7) are arranged at equal distances along the axial direction of the support frame (1). The interior of the card slot (7) is engaged with a fixing rod (8) connected to the water-absorbing sponge (3).

3. A moisture-proof cable according to claim 2, characterized in that: The cable core (2) is composed of a conductor (201), an inner insulating layer (202), and an inner shielding layer (203) from the inside out.

4. A moisture-proof cable according to claim 3, characterized in that: Grooves (9) are provided at equal intervals in the center of the outer wall of the support frame (1) along the axial direction of the support frame (1), and a water absorbent is provided inside the grooves (9).

5. A moisture-proof cable according to claim 4, characterized in that: The outer insulating layer (4) and the inner insulating layer (202) are both made of PVC polyethylene material.

6. A moisture-proof cable according to claim 5, characterized in that: The outer shielding layer (5) and the inner shielding layer (203) are both composed of metallized paper and copper tape, and the copper tape is arranged outside the metallized paper.

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