CN110932222B

CN110932222B - Water floating cable

Info

Publication number: CN110932222B
Application number: CN201911275467.6A
Authority: CN
Inventors: 李红东; 李晓红; 苟勇; 朱金
Original assignee: Chengdu Chuanlan Cable Co ltd
Current assignee: Chengdu Chuanlan Cable Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-12-29
Anticipated expiration: 2039-12-12
Also published as: CN110932222A

Abstract

The invention belongs to the technical field of power cables, and particularly relates to a water floating cable. The problems of poor waterproof performance and low tensile strength of the connection part of the overwater floating cable in the prior art are solved. The technical scheme of the invention is as follows: the cable sealing device comprises a cable core, an insulating layer, a waterproof layer, a floating layer and a floating cable connecting device, wherein the floating cable connecting device comprises a shell and a top cover, the shell is connected with the top cover in a sealing manner, the shell is enclosed into a cable connecting chamber and cable sealing parts arranged on two sides of the cable connecting chamber, the cable sealing parts are of cylindrical structures, one end, far away from the cable connecting chamber, of each cable sealing part is connected with a conical sealing block, the cable sealing parts are matched with the conical sealing blocks in shape, and the conical sealing blocks are connected with the end faces of the shell through fastening bolts. The invention improves the waterproof performance and tensile strength of the connection part of the overwater floating cable, avoids the cable from being pulled apart or leaked, and is suitable for power supply and communication of mechanical equipment.

Description

Water floating cable

Technical Field

The invention belongs to the technical field of power cables, and particularly relates to a water floating cable.

Background

The cable is a tool which is composed of a plurality of wires and used for transmitting electric energy or electric signals, the electric energy and the electric signals are more and more commonly used with the continuous progress of the society, and the cable becomes an indispensable part in our life. In the water areas such as ocean, river and the like, floating cables are needed to be used as mechanical equipment for power supply and communication. The floating cable is an important functional element for realizing power and electric energy transmission and control between equipment such as ships and warships, water surface robots and the like and water surface or underwater working parts, and relates to the realization of functions and safety guarantee of ship bodies and electric equipment on the water surface or in water.

In the prior art, the performances of the floating cable such as water resistance, tensile strength and the like can meet the use requirements, but because the length of the floating cable is limited, two floating cables are inevitably required to be connected in the use process, and the joint part often becomes the weak part of the whole cable. When the floating cable is used in the ocean, the floating cable is easily torn off from the connection position due to the flowing of ocean currents and the pulling of waves, water easily enters the connection position, and accidents such as underwater electric leakage and signal distortion are caused.

Therefore, the research and development of the overwater floating cable with good waterproof performance and high tensile strength is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

Aiming at the problems of poor waterproof performance and low tensile strength of the connection part of the water floating cable in the prior art, the invention provides the water floating cable, which aims to solve the problems that: improve the waterproof performance and the tensile strength of showy cable junction on water, avoid the cable to be broken or the electric leakage.

The technical scheme adopted by the invention is as follows:

the utility model provides a showy cable on water, includes cable core, insulating layer, waterproof layer, showy layer, still includes showy cable junction device, showy cable junction device includes casing and top cap, casing and top cap sealing connection, the casing encloses into cable junction room and sets up the cable seal portion in cable junction room both sides, the cable seal portion is the cylindrical structure, cable seal portion keeps away from cable junction room one end and is connected with the toper seal block, the less side of size of toper seal block is towards the cable junction room, the shape of the tip of cable seal portion with the shape cooperation of toper seal block, toper seal block middle part is provided with the through-hole, the through-hole cooperates with the size of showy cable, the toper seal block passes through fastening bolt with the terminal surface of casing and is connected.

After adopting this technical scheme, compress tightly the sealed piece of toper to cable seal portion through fastening bolt, make between showy cable and the sealed piece of toper, compress tightly between the sealed piece of toper and the cable seal portion, thereby it is sealed to showy cable formation, the casing seals through bolt and sealing washer with the top cap, arrange cable joint in the cable junction room, cable joint completely isolates with water and opens, water-proof effects is better, and cable joint does not bear the pulling force, the pulling force bears through the sealed piece of toper at both ends and the pressurization between cable and the casing, tensile effect is better, cable joint is difficult for being broken.

Preferably, the inner wall of the cable sealing part is provided with an annular step and a puller bolt, a through hole is formed in the middle of the puller bolt, the through hole is matched with the floating cable in size, an elastic sealing material is arranged between the annular step and the puller bolt, and the puller bolt is in threaded connection with the inner wall of the cable sealing part.

After adopting this preferred scheme, rotate the puller bolt, can push up elastic sealing material and annular step tightly, elastic sealing material extrusion deformation forms sealedly between the inner wall of cable seal portion and floating cable, has improved waterproof performance, and water-proof effects is better, and the cable seal portion increases with floating cable's area of contact moreover, and frictional force increases, and tensile strength is better.

Preferably, a V-shaped packing is arranged between the elastic sealing material and the annular step.

After adopting this preferred scheme, rotating the puller bolt, elastic sealing material can extrude V-arrangement packing, makes V-arrangement packing take place to warp, and the sealed effect of V-arrangement packing is better, can bear higher pressure, and waterproof effect is still fine in darker aquatic, further improves waterproof ability.

Preferably, the puller bolt is provided with a ratchet wheel, the ratchet wheel is located in the cable connection chamber, the inner wall of the cable connection chamber is provided with a blocking piece, the blocking piece is connected with the inner wall of the cable connection chamber through a torsion spring, and the blocking piece is matched with the ratchet wheel.

After adopting this preferred scheme, ratchet and separation blade cooperation on the puller bolt can prevent that the puller bolt is not hard up, keeps the puller force all the time, avoids elastic sealing material and V-arrangement packing to appear the condition of leaking because pressure reduces.

Preferably, the top of the shell is provided with a protrusion, the top cover is provided with a groove, the protrusion is matched with the groove, and a sealing ring is arranged between the protrusion and the groove.

After the preferred scheme is adopted, the top cover and the shell are fixed through the bolts, the bolts are screwed down to enable the top cover to compress the sealing rings, water resistance is achieved, the sealing rings are provided with a plurality of channels, and water resistance is further enhanced.

Preferably, a moisture-proof material is provided in the cable connection chamber.

After adopting this preferred scheme, dampproofing material can absorb the moisture in the cable junction room, avoids the cable to appear situations such as electric leakage, short circuit.

Preferably, the surfaces of the shell and the top cover are coated with anticorrosive materials.

After adopting this preferred scheme, can improve the corrosion resisting property of casing and top cap, increase of service life.

Preferably, a flexible cable sheath is arranged on one side, away from the cable sealing part, of the conical sealing block.

After adopting this preferred scheme, when floating the cable along with the wave is floated, the flexible cable sheath can prevent that the junction of floating the cable and toper sealing block from being buckled and damaging, avoids floating the cable and appears the electric leakage condition.

Preferably, the cable connection chamber has an upper portion having a circular arc-shaped cross-section and a lower portion having a V-shaped cross-section, and the cable sealing portion is provided at the lower portion of the cable connection chamber.

After adopting this preferred scheme, when floating the cable on the surface of water, the casing is located the lower part and sinks in the aquatic, and the top cap is located upper portion and floats the surface of water, does not immerse the aquatic for a long time, can improve the water-proof effects of top cap department, and the top cap sets up to arc in addition, can not ponding, can alleviate the weight of cable junction room.

Preferably, the cable connection chamber has a circular cross-sectional shape.

After adopting this preferred scheme, when the cable junction room is located under water, the pressure-bearing effect of cable junction room is better, can bear bigger water pressure and not warp.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. compress tightly the sealed piece of toper to the cable seal portion through fastening bolt, make between showy cable and the sealed piece of toper, compress tightly between the sealed piece of toper and the cable seal portion, thereby it is sealed to showy cable formation, the casing seals through bolt and sealing washer with the top cap, arrange cable joint in the cable junction room, cable joint is completely isolated with water, water-proof effects is better, and cable joint does not bear the pulling force, the pulling force bears through the sealed piece of toper at both ends and the pressurization between cable and the casing, tensile effects is better, cable joint is difficult for being broken.

2. The tight bolt in top rotates, can push up elastic sealing material and annular step tightly, and elastic sealing material extrusion deformation forms sealedly between the inner wall of cable seal portion and floating cable, has improved waterproof performance, and water-proof effects is better, and the cable seal portion increases with floating cable's area of contact moreover, and frictional force increases, and tensile strength is better.

3. Be provided with V-arrangement packing between elastic sealing material and the annular step, rotate the tight bolt in top, elastic sealing material can extrude V-arrangement packing, makes V-arrangement packing take place to warp, and the sealed effect of V-arrangement packing is better, can bear higher pressure, and waterproof effect is still fine in darker aquatic, further improves waterproof ability.

4. Ratchet and separation blade cooperation on the tight bolt in top can prevent that the tight bolt in top is not hard up, keeps the tight power in top all the time, avoids elastic sealing material and V-arrangement packing to appear the condition of leaking because pressure reduces.

5. The top cover and the shell are fixed through the bolts, the bolts are screwed down to enable the top cover to compress the sealing rings, water resistance is achieved, the sealing rings are provided with multiple channels, and water resistance is further enhanced.

6. Be provided with dampproofing material in the cable junction room, dampproofing material can absorb the moisture in the cable junction room, avoids the cable condition such as electric leakage, short circuit to appear.

7. The surfaces of the shell and the top cover are coated with anticorrosive materials, so that the anticorrosive performance of the shell and the top cover can be improved, and the service life is prolonged.

8. When the floating cable floats along with the waves, the flexible cable sheath can prevent the connecting part of the floating cable and the conical sealing block from being bent and damaged, and the electric leakage condition of the floating cable is avoided.

9. When the floating cable floats on the water surface, the shell is located at the lower part and sinks into the water, the top cover is located at the upper part and floats out of the water surface, the top cover is not immersed into the water for a long time, the waterproof effect of the top cover can be improved, the top cover is arc-shaped, water cannot be accumulated, and the weight of the cable connection chamber can be reduced.

10. The cross-sectional shape of cable junction room is circular, and when the cable junction room was located under water, the pressure-bearing effect of cable junction room was better, can bear bigger water pressure and not warp.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of a cable connection chamber according to a second embodiment;

FIG. 4 is a schematic structural view of a cable connection chamber according to a third embodiment.

The cable connecting device comprises a floating cable 1, a shell 2, a top cover 3, a conical sealing block 4, a fastening bolt 5, a V-shaped packing 6, an elastic sealing material 7, a jacking bolt 8, a ratchet wheel 9, a retaining sheet 10, a sealing ring 11, a joint 12, a flexible cable sheath 13 and a cable connecting chamber 14.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 4.

Example one

A water floating cable comprises a cable core, an insulating layer, a waterproof layer, a floating layer and a floating cable connecting device. The floating cable connecting device comprises a shell 2 and a top cover 3, wherein in the embodiment, a sealing ring is arranged between the shell 2 and the top cover 3 and is connected with the shell through a bolt. The shell 2 is integrally formed, the shell 1 encloses a cable connection chamber 14 and cable sealing parts, and the cable sealing parts are arranged on two sides of the cable connection chamber 14. The cable sealing portion is of a cylindrical structure and communicates with the cable connection chamber 14. The end of the cable sealing part far away from the cable connecting chamber 14 is connected with a conical sealing block 4, the smaller side of the conical sealing block 4 faces the cable connecting chamber 14, and the end of the cable sealing part is also provided with a shape which is conical to be matched with the shape of the conical sealing block 4. The middle part of the conical sealing block 4 is provided with a through hole, the through hole is matched with the floating cable 1 in size, and the conical sealing block 4 is connected with the end face of the shell 2 through a fastening bolt 5. In this embodiment, the conical sealing block 4 is made of rubber material.

The inner wall of the cable sealing part is provided with an annular step and a puller bolt 8, the middle part of the puller bolt 8 is provided with a through hole, the through hole is matched with the size of the floating cable 1, an elastic sealing material 7 is arranged between the annular step and the puller bolt 8, and in the embodiment, the elastic sealing material is made of rubber. The puller bolt 8 is in threaded connection with the inner wall of the cable sealing part. The rubber material and the annular step can be tightly pressed by rotating the puller bolt 8, and the rubber material is extruded and deformed to achieve the sealing function.

And a V-shaped packing 6 is arranged between the elastic sealing material 7 and the annular step. Elastic sealing material 7 can extrude V-arrangement packing 6, makes V-arrangement packing 6 take place to warp, and V-arrangement packing 6's sealed effect is better, can bear higher pressure, and waterproof effect is still fine in darker aquatic, further improves waterproof ability.

The jacking bolt 8 is provided with a ratchet wheel 9, the ratchet wheel 9 is located in a cable connection chamber 14, the inner wall of the cable connection chamber 14 is provided with a blocking piece 10, the blocking piece 10 is connected with the inner wall of the cable connection chamber 14 through a torsion spring, and the blocking piece 10 is matched with the ratchet wheel 9.

The top of casing 2 is provided with the arch, the lower part of top cap 3 is provided with the recess, protruding and recess cooperation are provided with three sealing washer 11 between arch and recess. The shell 2 is connected with the top cover 3 through bolts, and the bolts are screwed down to enable the sealing ring 11 to be compressed tightly to achieve multiple waterproof.

The cable connection compartment 14 is provided with a moisture-proof material. In this embodiment, the moisture resistant material is activated carbon, which is used to adsorb water vapor in the cable connection chamber 14.

The surfaces of the shell 2 and the top cover 3 are coated with anticorrosive materials. In the embodiment, the anticorrosive material is an ABS resin composite antirust coating which is a terpolymer of acrylonitrile, butadiene and styrene, and has excellent anticorrosive performance.

And a flexible cable sheath 13 is arranged on one side of the conical sealing block 4, which is far away from the cable sealing part. Because the floating cable 1 frequently swings along with the water flow in the floating process, the flexible cable sheath 13 can prevent the floating cable 1 from being worn and bent at the connecting part to cause the damage of the surface skin and even break.

In this embodiment, the cable connection chamber 14 has a rectangular cross-sectional shape.

Example two

This embodiment is substantially the same as the first embodiment except that the cable connection chamber 14 has an arc-shaped upper cross-section, a V-shaped lower cross-section, a top cover 3 at the upper portion, a housing 2 at the lower portion, and a cable sealing portion at the lower portion of the cable connection chamber 14. When setting up like this and enabling showy cable junction device to float on the surface of water, top cap 3 is on the surface of water all the time, and top cap 3 is the arc moreover, and the higher authority can not ponding, can weight reduction.

EXAMPLE III

This embodiment is substantially the same as the first embodiment except that the cable connection chamber 14 has a circular cross-sectional shape. With such an arrangement, the cable connection chamber 14 can have the highest pressure resistance and is not easily deformed when the floating cable 1 is in water.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. A water floating cable comprises a cable core, an insulating layer, a waterproof layer and a floating layer and is characterized by further comprising a floating cable connecting device, wherein the floating cable connecting device comprises a shell (2) and a top cover (3), the shell (2) is connected with the top cover (3) in a sealing mode, the shell (2) is surrounded into a cable connecting chamber (14) and cable sealing parts arranged on two sides of the cable connecting chamber (14), the cable sealing parts are of cylindrical structures, one end, far away from the cable connecting chamber (14), of each cable sealing part is connected with a conical sealing block (4), one side, with smaller size, of each conical sealing block (4) faces the cable connecting chamber (14), the shape of the end part of each cable sealing part is matched with the shape of the corresponding conical sealing block (4), a through hole is formed in the middle of each conical sealing block (4), and the through hole is matched with the floating cable in size, the tapered sealing block (4) is connected with the end face of the shell (2) through a fastening bolt (5), the inner wall of the cable sealing portion is provided with an annular step and a jacking bolt (8), the middle portion of the jacking bolt (8) is provided with a through hole, the through hole is matched with the size of a floating cable, an elastic sealing material (7) is arranged between the annular step and the jacking bolt (8), and the jacking bolt (8) is in threaded connection with the inner wall of the cable sealing portion.

2. An aquatic floating cable according to claim 1, wherein a V-shaped packing (6) is provided between the elastic sealing material (7) and the annular step.

3. The water floating cable according to claim 1, wherein the tightening bolt (8) is provided with a ratchet wheel (9), the ratchet wheel (9) is positioned in the cable connection chamber (14), the inner wall of the cable connection chamber (14) is provided with a baffle (10), the baffle (10) is connected with the inner wall of the cable connection chamber (14) through a torsion spring, and the baffle (10) is matched with the ratchet wheel (9).

4. An aquatic floating cable according to claim 1, wherein the top of the housing (2) is provided with a protrusion, the top cover is provided with a groove, the protrusion and the groove are matched, and a sealing ring (11) is arranged between the protrusion and the groove.

5. A water buoyant cable according to claim 1 wherein the cable junction compartment (14) is provided with moisture resistant material.

6. A water buoyant cable according to claim 1 wherein the surfaces of the housing (2) and the cover (3) are coated with a corrosion resistant material.

7. A water buoyant cable according to claim 1 wherein the tapered sealing block (4) is provided with a flexible cable sheath (13) on the side remote from the cable seal.

8. An aquatic floating cable according to claim 1, wherein the cable connection chamber (14) has an upper portion having a circular arc-shaped cross-sectional shape and a lower portion having a V-shaped cross-sectional shape, and the cable sealing portion is provided at the lower portion of the cable connection chamber (14).

9. A water buoyant cable according to claim 1 wherein the cross-sectional shape of the cable junction housing (14) is circular.