阅读说明：本技术 一种防潮漂浮电缆 (Dampproofing floating cable ) 是由 李万松 于 2021-06-17 设计创作，主要内容包括：本发明公开了一种防潮漂浮电缆,属于电缆领域,包括缆芯、防潮防护层及外护套,缆芯的外侧套设有隔离层,防潮防护层包括内防潮层、转动套及外防潮层,内防潮层卷绕式设于隔离层的外侧,且内防潮层的内端侧固定连接在隔离层上,转动套套装在内防潮层的外侧,且内防潮层的外端侧固定连接在转动套上；转动套的外表面上沿其周侧等间距固定有凸条,外防潮层的内侧面上沿其周侧固定有与凸条一一对应的遇水膨胀结构；遇水膨胀结构包括遇水膨胀体、阻隔组件及弹性体,遇水膨胀体的内侧面与转动套的外侧面接触,且遇水膨胀体的一侧面与相应的一个凸条接触。本发明能有效实现漂浮电缆的漂浮功能,且防潮结构设计巧妙,具有较好的防潮效果。(The invention discloses a moisture-proof floating cable, which belongs to the field of cables and comprises a cable core, a moisture-proof protective layer and an outer sheath, wherein an isolation layer is sleeved outside the cable core, the moisture-proof protective layer comprises an inner moisture-proof layer, a rotating sleeve and an outer moisture-proof layer, the inner moisture-proof layer is wound outside the isolation layer, the inner end side of the inner moisture-proof layer is fixedly connected to the isolation layer, the rotating sleeve is sleeved outside the inner moisture-proof layer, and the outer end side of the inner moisture-proof layer is fixedly connected to the rotating sleeve; the outer surface of the rotating sleeve is fixed with raised strips at equal intervals along the peripheral side of the rotating sleeve, and the inner side surface of the outer moisture-proof layer is fixed with water-swelling structures which are in one-to-one correspondence with the raised strips along the peripheral side of the inner side surface of the outer moisture-proof layer; the water-swelling structure comprises a water-swelling body, a blocking assembly and an elastic body, wherein the inner side surface of the water-swelling body is in contact with the outer side surface of the rotating sleeve, and one side surface of the water-swelling body is in contact with one corresponding raised strip. The invention can effectively realize the floating function of the floating cable, and has the advantages of ingenious design of the damp-proof structure and better damp-proof effect.)

1. A moisture-proof floating cable comprises a cable core, a moisture-proof protective layer and an outer sheath (1) which are sequentially arranged from inside to outside, wherein at least two cable cores (8) are arranged in the cable core; the anti-moisture cable is characterized in that an isolation layer (9) is sleeved on the outer side of the cable core, the anti-moisture protective layer comprises an inner moisture-proof layer (5), a rotating sleeve (4) and an outer moisture-proof layer (2) which are sequentially arranged from inside to outside, the inner moisture-proof layer (5) is wrapped on the outer side of the isolation layer (9) in a winding mode, the inner end side (51) of the inner moisture-proof layer (5) is fixedly connected to the isolation layer (9), the rotating sleeve (4) is sleeved on the outer side of the inner moisture-proof layer (5), and the outer end side (52) of the inner moisture-proof layer (5) is fixedly connected to the rotating sleeve (4); at least two convex strips (10) extending along the radial direction of the cable are fixed on the outer surface of the rotating sleeve (4) at equal intervals along the peripheral side of the rotating sleeve, water-swelling structures corresponding to the convex strips (10) one by one are fixed on the inner side surface of the outer moisture-proof layer (2) along the peripheral side of the outer moisture-proof layer, and each water-swelling structure is positioned between two adjacent convex strips (10);

meet water inflation structure including meeting water inflation body (3), separation subassembly and elastomer (6), the medial surface of meeting water inflation body (3) and the lateral surface contact of rotating cover (4), and the side of meeting water inflation body (3) and corresponding sand grip (10) contact, the separation subassembly is located one side of meeting water inflation body (3) corresponding sand grip (10) dorsad, the separation subassembly is scalable in the radial direction of cable, elastomer (6) are located one side that the separation subassembly dorsad expanded the water inflation body (3).

2. Moisture resistant floating cable according to claim 1, characterized in that the portions of the inner moisture barrier (5) forming a double layer correspond to a central angle of not less than 180 °.

3. Moisture floating cable as in claim 1, characterized in that said barrier means comprise a cover (12) fixed to said outer moisture barrier (2) and a fixing strip (11) telescopically connected to the inside of said cover (12), said fixing strip (11) being connected at its end inside said cover (12) to an elastic block (13) connected to said outer moisture barrier (2).

4. Moisture float cable according to claim 1, characterized in that the outer sheath (1) is made of foamed thermoplastic elastomeric material.

5. Moisture resistant floating cable according to claim 1, characterized in that the core is provided with a reinforcing cord (7) in the centre extending in the length direction of the cable.

6. Moisture resistant floating cable according to claim 5, characterized in that the reinforcing cords (7) are Kevlar cords.

7. Moisture resistant floating cable according to claim 1, characterized in that the outer moisture barrier (2) and the inner moisture barrier (5) are made of polyethylene material.

8. Moisture floating cable as claimed in claim 1, characterized in that a filling material (14) is arranged between the isolating layer (9) and the cable cores (8).

9. Moisture floating cable according to claim 8, characterized in that the filling (14) is a hollow staple fiber.

Technical Field

The invention relates to the field of cables, in particular to a moisture-proof floating cable.

Background

The cable is a tool composed of a plurality of wires and used for transmitting electric energy or electric signals, the use of the electric energy and the electric signals is more and more common with the continuous progress of the society, and the cable becomes an indispensable part in our lives. In the water areas such as ocean, river and the like, mechanical equipment is needed due to the high-speed development, so that power supply and communication are also needed by cables, and common cables are difficult to support on the water surface, so that floating cables are generated.

Float cable and float the cable on the surface of water when using promptly, because long-term and water contact when using, then float cable need have stronger dampproofing and waterproofing performance, however current float cable relies on waterproof sheath and waterproof band more and realizes dampproofing and waterproofing function, dampproofing simple structure, and dampproofing effect is relatively poor.

Disclosure of Invention

1. Technical problem to be solved

The technical problem to be solved by the invention is to provide a moisture-proof floating cable which can effectively realize the floating function of the floating cable, is ingenious in design of a moisture-proof structure and has a better moisture-proof effect.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

a moisture-proof floating cable comprises a cable core, a moisture-proof protective layer and an outer sheath which are sequentially arranged from inside to outside, wherein at least two cable cores are arranged in the cable core; the outer side of the cable core is sleeved with an isolation layer, the moisture-proof protection layer comprises an inner moisture-proof layer, a rotating sleeve and an outer moisture-proof layer which are sequentially arranged from inside to outside, the inner moisture-proof layer is wound and coated on the outer side of the isolation layer, the inner end side of the inner moisture-proof layer is fixedly connected to the isolation layer, the rotating sleeve is sleeved on the outer side of the inner moisture-proof layer, and the outer end side of the inner moisture-proof layer is fixedly connected to the rotating sleeve; at least two raised strips extending along the radial direction of the cable are fixed on the outer surface of the rotating sleeve at equal intervals along the peripheral side of the rotating sleeve, water-swellable structures corresponding to the raised strips one by one are fixed on the inner side surface of the outer moisture-proof layer along the peripheral side of the outer moisture-proof layer, and each water-swellable structure is positioned between two adjacent raised strips;

water inflation structure includes water inflation body, separation subassembly and elastomer, the medial surface of water inflation body and the lateral surface contact of rotating the cover, and a side of water inflation body and corresponding sand grip contact, one side of water inflation body corresponding sand grip dorsad is located to the separation subassembly, the separation subassembly is scalable in the radial direction of cable, the elastomer is located one side that the separation subassembly is the water inflation body dorsad.

Further, the central angle corresponding to the part of the inner moisture barrier layer forming the double-layer structure is not less than. Have more part overlapping together between the bilayer structure on the dampproof course in the guarantee to the clearance appears in bilayer structure's overlapping department on the dampproof course in preventing, thereby can ensure interior dampproof course's humidity resistance.

Furthermore, the separation subassembly is connected in the fixed inboard fixed strip of fixed cover including fixed cover and the retractable on outer dampproof course, the fixed strip is located the inside one end of fixed cover and is connected to the elasticity piece on the outer dampproof course. Fixed strip and fixed cover are because itself does not have elasticity, and can not take place the flexible of arbitrary direction, then can hinder water-swellable body to meet water back inflation to separation subassembly place side, orders about water-swellable body to the inboard inflation of corresponding sand grip place side and cable.

Further, the outer sheath is made of a foamed thermoplastic elastomeric material. The thermoplastic elastic material adopts thermoplastic polyurethane, the thermoplastic polyurethane is used as a novel organic polymer synthetic material, for short TPU, the wear resistance and the resilience of the thermoplastic elastic material are superior to those of common polyurethane and PVC materials, the aging resistance is superior to that of rubber, the tear resistance is strong, the bending strength is excellent, the tensile strength is high, the elongation is large, the long-term compression permanent deformation rate is low, the low-temperature resistance and the oil resistance are all remarkable advantages of the TPU; and the outer sheath made of the foamed thermoplastic polyurethane has lighter weight and can better float on the water surface.

Furthermore, a reinforcing rope extending along the length direction of the cable is arranged at the center of the cable core, and the reinforcing rope is a Kevlar fiber rope. The Kevlar fiber rope can greatly improve the tensile property of the cable body, and further improve the bearing capacity of the floating cable.

Further, the outer and inner moisture barriers are made of a polyethylene material. Polyethylene stability is good, and resistant acid-base corrosion of most, and density is less, and outer dampproof course and interior dampproof course adopt polyethylene to make, can not only satisfy the service function requirement of dampproof course, but also can reduce the bulk density of floating the cable, are favorable to promoting to realize that the cable floats on the surface of water.

Furthermore, a filling material is arranged between the isolation layer and each cable core, and the filling material is hollow short fibers. The hollow short fibers can realize the filling function of the filling material, and the hollow short fibers are hollow, so that the self weight can be reduced, and the cable can be promoted to float on the water surface.

3. Advantageous effects

(1) The invention is provided with the outer sheath made of foaming thermoplastic elastic material, the outer moisture-proof layer and the inner moisture-proof layer made of polyethylene material and the water-swelling body made of water-swelling rubber, thereby greatly reducing the density of the cable and effectively realizing the floating function of the floating cable.

(2) The cable core is provided with the outer moisture-proof layer and the inner moisture-proof layer, double moisture-proof protection of the cable core can be realized, and the water-swelling bodies which are distributed at equal intervals along the circumferential direction of the cross section of the cable are arranged between the outer moisture-proof layer and the inner moisture-proof layer. During the use, the lower part and the water contact of cable, when oversheath and interior dampproof course damaged back, the water can with the contact of the water inflation body of cable lower part, should water inflation body upwards side inflation, can be with cable core and interior dampproof course jack-up that makes progress, make them keep away from the surface of water, can prevent cable core and surface of water contact.

(3) The inner moisture-proof layer of the cable core is wound on the outer side of the cable core, the outer side of the inner moisture-proof layer is sleeved with the rotating sleeve, the inner end side of the inner moisture-proof layer is fixed with the cable core, the outer end side of the inner moisture-proof layer is fixed with the rotating sleeve, and raised lines which correspond to the water swelling bodies one by one are fixed on the outer side of the rotating sleeve along the peripheral side of the rotating sleeve. After oversheath and interior dampproof course are damaged, the water can with the water-swelling body contact of cable lower part, the sand grip that is located the lower part is promoted by the inflation effect of water-swelling body, can drive and rotate the cover and take place to rotate, the inner side of interior dampproof course 5 is steady, and the outer end side of interior dampproof course takes place to remove along with the rotation of rotating the cover for interior dampproof course is taut, promotes interior dampproof course tighter around on the cable core, can strengthen the dampproofing effect of blocking water of interior dampproof course.

In conclusion, the floating cable can effectively realize the floating function of the floating cable, and has the advantages of ingenious design of the moisture-proof structure and better water-blocking and moisture-proof effects.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention in an initial state;

FIG. 2 is an enlarged view of the structure of the area A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the inner moisture barrier 5;

FIG. 4 is a schematic cross-sectional view of the rotating sleeve 4 and the rib 10 fixed thereon;

FIG. 5 is a schematic cross-sectional view of the present invention in a state of fully performing the water-blocking and moisture-proof functions.

Reference numerals: 1. an outer sheath; 2. an outer moisture barrier; 3. a water-swellable body; 4. rotating the sleeve; 5. an inner moisture barrier; 51. an inner end side; 52. an outer end side; 6. an elastomer; 7. a reinforcing cord; 8. a cable core; 9. an isolation layer; 10. a convex strip; 11. a fixing strip; 12. fixing a sleeve; 13. an elastic block; 14. and (3) a filling material.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The moisture-proof floating cable shown in fig. 1 comprises a cable core, a moisture-proof protective layer and an outer sheath 1 which are sequentially arranged from inside to outside, wherein at least two cable cores 8 (three cable cores 8 are shown in the figure) are arranged in the cable core; the outer side of the cable core is sleeved with an isolation layer 9, the isolation layer 9 is a shielding layer, the moisture-proof protection layer comprises an inner moisture-proof layer 5, a rotating sleeve 4 and an outer moisture-proof layer 2 which are sequentially arranged from inside to outside, as shown in fig. 3, the inner moisture-proof layer 5 is arranged in a winding mode and covers the outer side of the isolation layer 9, the inner end side 51 of the inner moisture-proof layer 5 is fixedly connected to the isolation layer 9, the rotating sleeve 4 is sleeved on the outer side of the inner moisture-proof layer 5, and the outer end side 52 of the inner moisture-proof layer 5 is fixedly connected to the rotating sleeve 4; as shown in fig. 4, at least two protruding strips 10 extending along the radial direction of the cable are fixed on the outer surface of the rotating sleeve 4 at equal intervals along the circumferential side of the rotating sleeve, water-swellable structures corresponding to the protruding strips 10 one by one are fixed on the inner side surface of the outer moisture-proof layer 2 along the circumferential side of the rotating sleeve, and each water-swellable structure is located between two adjacent protruding strips 10;

as shown in fig. 2, water-swelling structure includes water-swelling body 3, separation subassembly and elastomer 6, the medial surface of water-swelling body 3 and the lateral surface contact of rotating cover 4, and a side of water-swelling body 3 and a corresponding sand grip 10 contact, the separation subassembly is located one side of water-swelling body 3 corresponding sand grip 10 dorsad, the separation subassembly is scalable in the radial direction of cable, the separation subassembly is connected in fixed cover 12 inboard fixed strip 11 including fixed cover 12 and the retractable on outer dampproof course 2, the one end that fixed strip 11 is located fixed cover 12 inside is connected with the elastic block 13 that is connected to outer dampproof course 2. Fixed strip 11 and fixed cover 12 are because itself does not have elasticity, and can not take place the flexible of arbitrary direction, then can hinder water-swellable body 3 to meet water to the inflation of separation subassembly place side, orders about water-swellable body 3 to the inboard inflation of corresponding sand grip 10 place side and cable. Elastomer 6 locates separation subassembly one side of water inflation body 3 dorsad, and when water inflation body 3 water inflation promoted corresponding sand grip 10 and removed the back, elastomer 6 was compressed, then at the in-process that resets of relevant mechanism, the elasticity of elastomer 6 resets and acts on and can promote the reset of sand grip 10 and rotation cover 4, and then can realize interior dampproof course 5.

The outer and inner moisture barriers 2, 5 are made of a polyethylene material. Polyethylene stability is good, and resistant acid-base corrosion of most, and density is less, and outer dampproof course 2 and interior dampproof course 5 adopt polyethylene to make, can not only satisfy the service function requirement of dampproof course, but also can reduce the bulk density of floating the cable, are favorable to promoting to realize that the cable floats on the surface of water.

The water-swellable body 3 is made of water-swellable rubber. The water-swellable rubber is made of ordinary rubber (typical hydrophobic substance) and a certain high water-absorbing polymer (which is not dissolved out by water), and can absorb a large amount of water to swell in volume and keep the excellent elasticity of rubber.

The outer sheath 1 is made of a foamed thermoplastic elastomer material. The thermoplastic elastic material adopts thermoplastic polyurethane, the thermoplastic polyurethane is used as a novel organic polymer synthetic material, for short TPU, the wear resistance and the resilience of the thermoplastic elastic material are superior to those of common polyurethane and PVC materials, the aging resistance is superior to that of rubber, the tear resistance is strong, the bending strength is excellent, the tensile strength is high, the elongation is large, the long-term compression permanent deformation rate is low, the low-temperature resistance and the oil resistance are all remarkable advantages of the TPU; the outer sheath 1 made of the foamed thermoplastic polyurethane is light in weight and can better float on the water surface.

In the present embodiment, as shown in fig. 1, the central angle of the portion of the inner moisture barrier 5 forming the double-layer structure is 270 °. Have more part overlapping together between the bilayer structure in the dampproof course 5 in the guarantee to the gap appears in the coincidence department of bilayer structure on the dampproof course 5 in preventing, thereby can ensure interior dampproof course 5's humidity resistance.

Example 2

The present embodiment is different from embodiment 1 in that:

in this embodiment, the isolation layer 9 is a water-blocking tape wrapping layer.

In this embodiment, the central angle of the portion of the inner moisture barrier 5 forming the double layer structure is 180 °.

In this embodiment, as shown in fig. 1, a reinforcing cord 7 extending in the cable length direction is provided at the center of the cable core, and the reinforcing cord 7 is a kevlar fiber cord. The Kevlar fiber rope can greatly improve the tensile property of the cable body, and further improve the bearing capacity of the floating cable.

In this embodiment, as shown in fig. 1, a filling material 14 is disposed between the isolation layer 9 and each cable core 8, and the filling material 14 is a hollow short fiber. The hollow short fibers can realize the filling function of the filling material 14, and the hollow short fibers are hollow, so that the self weight can be reduced, and the cable can be promoted to float on the water surface.

Otherwise, the same procedure as in example 1 was repeated.

The specific action principle of the moisture-proof floating cable is as follows:

when in use, the outer sheath 1 is made of foamed thermoplastic elastic material, the outer moisture-proof layer 2 and the inner moisture-proof layer 5 are made of polyethylene material, and the water-swelling body 3 is made of water-swelling rubber, so that the density of the cable is greatly reduced, and the cable effectively floats on the water surface. At this time, the bottom of the cable is in contact with the water surface. If the part of the outer sheath 1 contacting with the water surface is damaged, the water body can penetrate through the lower part of the outer sheath 1, and the outer moisture-proof layer 2 firstly plays a role in water resistance and moisture resistance; if the lower part of the outer moisture-proof layer 2 is damaged, water can contact with the water-swelling body 3 positioned at the lower part, the water-swelling body 3 at the position is swelled when encountering water, and due to the blocking effect of the fixing strip 11 and the fixing sleeve 12, the water-swelling body 3 is swelled to the side where the convex strip 10 is butted against the water-swelling body, and is swelled to the side where the center of the cable is positioned, as shown in fig. 5, the water-swelling body 3 positioned at the lower part of the cable is swelled to the side where the center of the cable is positioned, so that the cable core, the inner moisture-proof layer 5 and the rotating sleeve 4 can be jacked upwards to enable the cable core to be far away from the water surface, and the components inside the rotating sleeve 4 can be prevented from contacting the water surface; the existence of the inner moisture-proof layer 5 can further play a role in water and moisture resistance, so that the water-swellable body 3 positioned on the upper part of the cable is extruded and contracted adaptively, and the fixing strip 11 positioned on the upper part of the cable is extruded to move towards the inner side of the corresponding fixing sleeve 12; simultaneously, the sand grip 10 that is located the lower part is promoted by the inflation effect of water-swellable body 3, it takes place to rotate to drive and rotate cover 4, because interior dampproof course 5 is convoluteed and is set up, and the inner 51 fixed connection of side of the inner 51 of interior dampproof course 5 is on isolation layer 9, the outer 52 fixed connection of side of the outer end of interior dampproof course 5 is on rotating cover 4, then the inner 51 side of interior dampproof course 5 is steady motionless, and the outer 52 side of interior dampproof course 5 takes place to remove along with the rotation of rotating cover 4, make interior dampproof course 5 taut, what dampproof course 5 was tighter was around on isolation layer 9 in the promotion, the dampproofing effect that blocks water of interior dampproof course 5 can be strengthened, finally, can realize the high-efficient dampproofing protection to the cable core.

According to the invention, the floating function of the floating cable can be effectively realized, and the moisture-proof structure is ingenious in design and has a better moisture-proof effect.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.