CN211208030U

CN211208030U - Water level control cable

Info

Publication number: CN211208030U
Application number: CN201922447162.0U
Authority: CN
Inventors: 徐春锋
Original assignee: Hangzhou Sedtech Technology Co ltd
Current assignee: Hangzhou Sedtech Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-07
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a water level control cable, which comprises a polyurethane layer, a protective layer, a conductive core and a signal core; the polyurethane layer is coated outside the protective layer, the protective layer is formed by weaving 32 stainless steel wires with the diameter of 0.25mm, the outer part of each stainless steel wire is coated with the rat bite prevention layer, and two conductive cores and a plurality of signal cores are arranged in the protective layer; the utility model discloses a protective layer had both played the signal shielding effect, had increased cable strength again, had promoted tensile strength, and the various complicated underwater environment of better adaptation has enlarged application scope.

Description

Water level control cable

Technical Field

The utility model relates to a water level control cable.

Background

With the development of automatic flood control and water seepage alarm systems, in order to quickly judge whether water exists in mines, underground places, tunnels or flood control projects or whether the water exceeds a safe water level, signal transmission is generally realized by means of a water level control cable.

SUMMERY OF THE UTILITY MODEL

To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that an increase cable strength in order to promote tensile properties is provided to application scope's water level control cable has been enlarged.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a water level control cable comprises a polyurethane layer, a protective layer, a conductive core and a signal core; the protective layer is coated with the polyurethane layer, and two conductive cores and a plurality of signal cores are arranged in the protective layer, and the protective layer is formed by weaving 32 stainless steel wires with the diameter of 0.25mm, a rat bite prevention layer is coated outside each stainless steel wire, and the number of the signal cores is 4, 6 or 8; the conductive core comprises a first conductor and a conductive EVA layer coated outside the first conductor, and the signal core comprises a second conductor and a non-conductive EVA layer coated outside the second conductor.

Preferably, the outer diameters of the conductive core and the signal core are both 0.8 mm.

Preferably, the first conductor and the second conductor are both made of tinned copper wires.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a protective layer had both played the signal shielding effect, had increased cable strength again, had promoted tensile strength, and the various complicated underwater environment of better adaptation has enlarged application scope.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a sectional structure view of the protective layer of the present invention.

Detailed Description

As shown in fig. 1-2, a water level control cable comprises a polyurethane layer 1, a protective layer 2, a conductive core and a signal core; the polyurethane layer 1 is coated outside the protective layer 2, the protective layer 2 is formed by weaving 32 stainless steel wires 8 with the diameter of 0.25mm, the outer part of each stainless steel wire 8 is coated with a rat bite prevention layer 7, two conductive cores and a plurality of signal cores are arranged in the protective layer 2, the outer diameters of the conductive cores and the signal cores are 0.8mm, the number of the signal cores is 4, 6 or 8, each conductive core comprises a first conductor 3 and a conductive EVA layer 5 coated outside the first conductor 3, and each signal core comprises a second conductor 4 and a non-conductive EVA layer 6 coated outside the second conductor 4; the first conductor 3 and the second conductor 4 are both made of tinned copper wires.

When in use: the two conductive cores are respectively connected to the positive electrode and the negative electrode of a power supply of the underwater equipment to play a conductive role, the signal cores are respectively connected to the signal ends of the underwater equipment to play a signal transmission role, the stainless steel wire 8 in the protective layer 2 plays a signal shielding role, and the rat bite prevention auxiliary agent is added into the rat bite prevention layer 7 to prevent rat bite.

With the development of automatic alarm systems for flood control and water seepage, signal transmission is generally realized by means of water level control cables in order to quickly judge whether water exists in mines, underground, tunnels or flood control projects or whether the water exceeds a safe water level; the utility model discloses a protective layer 2 has both played the signal shielding effect, has increased cable strength again, has promoted tensile strength, and the various complicated environment under water of better adaptation has enlarged application scope.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A water level control cable comprises a polyurethane layer, a protective layer, a conductive core and a signal core; the protective layer is coated with the polyurethane layer, and two conductive cores and a plurality of signal cores are arranged in the protective layer, and the protective layer is formed by weaving 32 stainless steel wires with the diameter of 0.25mm, a rat bite prevention layer is coated outside each stainless steel wire, and the number of the signal cores is 4, 6 or 8; the conductive core comprises a first conductor and a conductive EVA layer coated outside the first conductor, and the signal core comprises a second conductor and a non-conductive EVA layer coated outside the second conductor.

2. The water level control cable according to claim 1, wherein the conductive core and the signal core each have an outer diameter of 0.8 mm.

3. The water level control cable according to claim 1, wherein said first and second conductors are each a tinned copper wire.