CN118380187B

CN118380187B - Cable applicable to mud and mud flat and manufacturing method

Info

Publication number: CN118380187B
Application number: CN202410583499.7A
Authority: CN
Inventors: 朱禧楠; 赵燕; 黄卫南; 黄文华; 李茂彬
Original assignee: Guangdong Jianbao Cable Co ltd
Current assignee: Guangdong Jianbao Cable Co ltd
Priority date: 2024-05-11
Filing date: 2024-05-11
Publication date: 2024-11-01
Anticipated expiration: 2044-05-11
Also published as: CN118380187A

Abstract

The application relates to the technical field of special cables, and overcomes the defect of insufficient compression resistance and tensile resistance of a soil body with fluidity in the prior art, and discloses a cable suitable for mud and mud flat and a manufacturing method thereof, the cable comprises a cable core, a waterproof layer and a first protective layer from inside to outside, the cable also comprises a second protective layer and a plurality of barrier sheets, a plurality of buffer sections and a plurality of curing sections are separated between the first protective layer and the second protective layer through the barrier sheets, the buffer sections and the curing sections are alternately arranged, the cable further comprises a liquid supply pipe, wherein the liquid supply pipe penetrates through the plurality of blocking pieces to supply liquid for the curing section, and the cable has longitudinal, radial and transverse stretching and compression resistance so as to prolong the service life of the cable.

Description

Cable applicable to mud and mud flat and manufacturing method

Technical Field

The application relates to the technical field of special cables, in particular to a cable suitable for mud and mud flat and a manufacturing method thereof.

Background

Areas such as lakes, wetlands, beaches, and the like often have abundant light energy or wind energy resources. To maximize the utilization of clean energy, photovoltaic power plants or wind power plants. The delivery of electrical energy necessarily relies on electrical cables.

In the prior art, a special cable is provided, wherein a cable core of the special cable is formed by twisting a plurality of insulating wire cores, and a water blocking rope is filled in a gap of the cable core; overlapping and wrapping a water blocking tape outside the cable core, wherein the overlapping rate is controlled to be 15% -25%; the waterproof layer is arranged outside the water blocking band, the high-density polyethylene isolation sleeve is extruded outside the water blocking band, the steel wire armor layer is woven outside the high-density polyethylene isolation sleeve, the steel wire armor layer is coated with the steel belt, and the polyethylene outer sheath is extruded outside the steel belt.

Aiming at the related technology, due to instability of mud and mud flat soil, the soil can generate sedimentation, longitudinal and transverse movement and can wrap the cable for movement, so that the cable is excessively stretched, and the service life of the cable is influenced.

Disclosure of Invention

In order to overcome the defect that the prior art has insufficient compression resistance and tensile resistance to a soil body with fluidity, the application provides a cable applicable to mud and mud flat and a manufacturing method thereof.

The following technical scheme is adopted:

In a first aspect of the present invention,

The utility model provides a cable suitable for mud, mud flat department, including interior cable core, waterproof layer and the first protective layer to outside, the cable still includes second protective layer, a plurality of separation piece concentric connection in first protective layer periphery side, the second protective layer parcel in a plurality of separation piece periphery side, first protective layer with pass through between the second protective layer separation a plurality of buffer sections and a plurality of curing section, the buffer section with the curing section sets up in turn, the curing section is filled with the solidification powder that can solidify after the liquid reaction, follow in the buffer section first protective layer length direction is provided with the spring, the spring both ends all are provided with the connecting rod, the connecting rod pass near the separation piece is to corresponding in the curing section, the cable still includes the liquid supply pipe, the liquid supply pipe passes a plurality of separation piece is the curing section supplies liquid.

By adopting the technical scheme, the solid shell formed by the solidified section provides protection and support for part of the section of the cable; connecting a plurality of curing sections through buffer sections; the spring is used for bending, radial stretching and compression deformation energy storage in the processes of sedimentation, radial surging and horizontal surging of mud or mud flat; the cable has longitudinal, radial and transverse stretching resistance and compression resistance, so that the service life of the cable is prolonged.

Optionally, the liquid supply pipe is made by infiltration geotechnical cloth, the liquid supply pipe includes expansion portion and the stereoplasm portion of end to end phase, expansion portion radial fold set up in the solidifying section, stereoplasm portion set up in the buffer section, stereoplasm portion inner wall circumference covers plastic film.

By adopting the technical scheme, the expansion part expands after the liquid is continuously filled, so that on one hand, the liquid is accelerated to permeate into the solidified powder, and on the other hand, the cross-sectional shape of the solidified section is changed through the expansion of the expansion part. The hard segment pair covers the plastic film, prevents the deformation of the hard segment and simultaneously prevents the liquid from leaking into the buffer segment.

Optionally, two support nets are arranged in the curing section, the support nets are made of deformable metal materials, the support nets are arranged along the length direction of the cable core, the support nets are bent and protruded in the direction away from the cable core, two ends of each support net are respectively connected with corresponding connecting rods, the expansion parts are located between the support nets and the first protection layer, and the expansion diameter of each expansion part is larger than the maximum distance between the support nets and the first protection layer.

By adopting the technical scheme, the supporting net is deformed by expanding and extruding the liquid supply pipe, so that the solidified section of the second protective layer is extruded to be deformed, and the section of the section is extruded towards ellipse; the vertical projection area is increased through the shape, the influence caused by mud or mud flat settlement is reduced, the horizontal resistance is smaller after solidification, and the horizontal thrust of mud or mud flat to a solidification section is reduced. In addition, the solidified powder is adhered through a supporting net; and after the solidified powder is solidified into blocks, the supporting net bears the tension, and the solidified blocks bear the stress.

Optionally, an auxiliary net is connected to a surface of the support net away from the cable core, the auxiliary net and the support net are coaxially arranged, and the curvature of the auxiliary net is greater than that of the support net.

By adopting the technical scheme, the support with larger curvature is carried out through the auxiliary net, so that the shape of the curing section is more approximate to an ellipse.

Optionally, the spread sheet week side outer wall has seted up the spread groove, the spread groove cross-section is trapezoidal, second protective layer outer wall is provided with a plurality of lock rings, lock ring inner wall circumference is provided with the connecting rod, the connecting rod can insert in the spread groove, the connecting rod cross-section is the rectangle, the spread groove bottom inner wall is provided with the sand grip that the cross-section is triangle-shaped, the annular recess of cross-section for a style of calligraphy has been seted up to the connecting rod bottom, the connecting rod has deformability.

Through adopting above-mentioned technical scheme, insert the spread groove back through the connecting rod in, the recess moves to make the connecting rod deformation, with make the catch be fixed in on the barrier piece with the second protective layer.

Optionally, the second protective layer both ends are provided with a end sleeve respectively, end sleeve one end parcel in first protective layer outside, the other end is connected the second protective layer, end sleeve will the terminal of second protective layer supports tightly on first protective layer, end sleeve includes infusion port, infusion port one end wears to establish out end telescopic outer wall, the other end intercommunication the feed liquor pipe, infusion port can dismantle and be connected with the port lid.

Through adopting above-mentioned technical scheme, consolidate the end of second protective layer through the end sleeve to be connected the end of second protective layer with first protective layer through the end sleeve, prevent that second protective layer end and first protective layer from separating. And the structural shape of the liquid supply pipe can be supported by the end socket, and the transfusion port is connected with the liquid supply pipe.

Optionally, the port cover is made of transparent hard plastic material.

By adopting the technical scheme, the liquid level height in the liquid supply pipe can be observed through the port cover, so that whether water leakage occurs or not is judged.

Optionally, the cable core comprises a plurality of insulation wire cores, the insulation wire cores comprise conductors, and shielding layers, water tree resistant insulation layers and insulation shielding layers are sequentially covered outside the conductors.

By adopting the technical scheme, the influence of the magnetic field on the current is prevented by the shielding layer; the water tree resistant insulating material has the characteristic of better water tree resistance, and ensures that the cable insulation has better water tree resistance breakdown performance; the insulating shielding layer further improves the waterproof performance and the anti-interference capability of the cable.

In a second aspect of the present invention,

The manufacturing method of the cable suitable for mud and mud flat comprises the following steps:

step one, a preparation process of the cable core,

The method comprises the steps of (A) preparing a conductor, wherein the conductor is formed by twisting a plurality of layers of copper wires, longitudinally wrapping a semi-conductive waterproof layer on the surface of each layer of twisted copper wires, and embedding the semi-conductive waterproof layer into a gap of the copper wires through compression of the copper wires;

Secondly, preparing the insulated wire core, extruding the conductor shielding layer, the water tree resistant insulating layer and the insulating shielding layer outside the conductor in a three-layer coextrusion mode, and wrapping a semiconductor water-resistant belt outside the insulating shielding layer;

filling water-blocking ropes in gaps of the cable core, wherein the gaps at the center and the edge are required to be densely filled with the water-blocking ropes;

fourthly, extruding the waterproof layer outside the cable core;

(V) extruding the first protective layer outside the waterproof layer;

Step two, sequentially penetrating the barrier sheets at intervals on the outer side of the first protective layer, and installing the springs;

Thirdly, selecting a polyethylene strip, wrapping a plurality of barrier sheets in a curling manner, fixing the barrier sheets through the end socket at two ends, and sewing the joint positions through adhesive after butt joint of two side edges of the polyethylene strip to form a second protective layer; when in wrapping, wrapping is carried out one by one along the peripheral side of the separation sheet, the locking ring is fixed by the locking ring, the locking ring is broken to form an opening, and welding is carried out at the broken position; when the curing section is wrapped, a hole is reserved, and the curing powder is injected into the inner space of the hole;

and fourthly, coating asphalt liquid on the joint of the second protective layer, and covering the joint with a polyethylene strip made of a transparent material by using waterproof adhesive.

In summary, the present application includes at least one of the following beneficial effects:

1. Providing protection and support by curing a portion of the segment of the cable; connecting a plurality of curing sections through buffer sections; the springs provide resistance to bending and radial stretching and compression; thereby the cable has the stretching resistance and compression resistance in the longitudinal direction, the radial direction and the transverse direction so as to prolong the service life of the cable;

2. the section of the curing section is extruded to deform through deformation of the supporting net, the section of the curing section is extruded towards ellipse, the influence caused by sedimentation of mud or mud flat is reduced, and the horizontal thrust of the mud or mud flat to the curing section is reduced;

3. expanding after the liquid is continuously filled through the expansion part, and penetrating the liquid into the solidified powder;

4. Because the cable laying environment has a large amount of water, the structure ensures that the cable has excellent comprehensive water blocking performance, realizes radial and longitudinal full water blocking, ensures that the cable has water tree breakdown resistance, and realizes the longitudinal and radial full water blocking functions of the cable from the conductor, the insulated wire core and the cable core by designing a plurality of water blocking barriers.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of a partially cut-away structure of the present embodiment;

FIG. 3 is a schematic view of a cable body in cross-section;

FIG. 4 is a schematic cross-sectional view of the cable after expansion;

FIG. 5 is a cable expansion process diagram;

FIG. 6 is an enlarged schematic view of the structure at A;

FIG. 7 is an enlarged schematic view of the structure at B;

FIG. 8 is a schematic view of a locking ring configuration;

Fig. 9 is a schematic view of the tip sleeve structure.

Reference numerals illustrate: 1. a cable core; 11. an insulated wire core; 111. a conductor; 112. a shielding layer; 113. a water tree resistant insulating layer; 114. an insulating shielding layer; 12. a waterproof layer; 13. a first protective layer; 2. a second protective layer; 21. a locking ring; 211. a connecting strip; 212. a groove; 3. a blocking sheet; 31. a relief groove; 32. a connecting groove; 321. a convex strip; 4. a buffer section; 41. a spring; 42. a connecting rod; 5. a curing section; 51. a support net; 511. a connecting collar; 52. an auxiliary network; 6. a liquid supply pipe; 61. an expansion section; 62. a hard portion; 7. an end socket; 71. an infusion port; 72. an end cover; 8. a cable body.

Detailed Description

The present application will be described in further detail with reference to fig. 1 to 9.

Embodiment one:

Referring to fig. 1, the present embodiment discloses a cable applicable to mud and tidal flat, comprising two major parts: a cable body 8 as a power supply body, and a protective casing provided in mud or mud flat to protect the cable body 8.

Referring to fig. 2 and 3, the cable body 8 includes a plurality of cable cores 1 from inside to outside, a waterproof layer 12, and a first protective layer 13. Conductors 111 are provided in the cable core 1 for power transmission. The waterproof layer 12 is wrapped on the outer sides of the cable cores 1; the aluminum-plastic composite belt is formed by longitudinally wrapping an aluminum-plastic composite belt and extruding a high-density polyethylene material outside the aluminum-plastic composite belt; is used for preventing water in mud or mud flat from penetrating into the cable core 1. The first protection layer 13 is wrapped on the outer side of the waterproof layer and is formed by extruding and wrapping ultraviolet-resistant and corrosion-resistant polyethylene materials, and is used for protecting the waterproof layer 12.

Referring to fig. 2 to 7, wherein the protective housing comprises a second protective layer 2 and a number of barrier sheets 3. The blocking pieces 3 are arranged on the outer peripheral side of the first protective layer 13 in a circular shape perpendicular to the length direction of the cable core 1, and a plurality of blocking pieces 3 are arranged at intervals. The second protective layer 2 is wrapped in a tubular curved surface where the outer walls of the plurality of blocking pieces 3 are positioned. A plurality of locking rings 21 are arranged on the outer wall of the second protective layer 2 at intervals along the length direction, and the locking rings 21 tightly support the second protective layer 2 to the outer wall of the separation sheet 3 from the outer side. A plurality of buffer sections 4 and a plurality of curing sections 5 are separated between the first protective layer 13 and the second protective layer 2 through the blocking piece 3, and the buffer sections 4 and the curing sections 5 are alternately arranged along the length direction of the cable core 1. The curing section 5 is filled with curing powder, and the curing powder is made of a material which can be solidified in a lump after reacting with liquid. The buffer section 4 is provided with a spring 41, the spring 41 is sleeved outside the first protection layer 13, and two ends of the spring 41 are provided with a plurality of connecting rods 42. The connecting rod 42 passes through the barrier sheet 3 along the length direction of the cable core 1 and enters the similar curing section 5, and is inserted into the curing powder. The connecting rod 42 is slidable relative to the barrier rib 3. The solidified mass after the solidified powder reaction is combined with the connecting rod 42. The protective housing still includes feed liquid pipe 6, and feed liquid pipe 6 sets up between second protective layer 2 and first protective layer 13 along cable core 1 length direction, and feed liquid pipe 6 wears to establish a plurality of barrier pieces 3. One end of the liquid supply pipe 6 penetrates out of the second protective layer 2 to the outside, and is provided with an infusion port 71. The liquid reacted with the solidified powder is fed into the protective housing through the liquid feed pipe 6.

In comparison with the prior art, the waterproof layer 12 and the anti-corrosion layer are covered by the outer layer. In this embodiment, the formation of the solid state housing with the cured section 5 provides protection and support for a portion of the cable's section; and connecting a plurality of curing sections 5 through a buffer section 4; the spring 41 is used for bending, radial stretching and compression deformation energy storage in the processes of sedimentation, radial surging and horizontal surging of mud or mud flat; the cable has longitudinal, radial and transverse stretching resistance and compression resistance, so that the service life of the cable is prolonged.

Referring to fig. 3, specifically, the cable core 1 is formed by twisting a plurality of insulating wire cores 11 (twisting means a manner in which a plurality of conductors 111 are rotated along a spiral line to obtain twisted wires). The insulated wire core 11 comprises a conductor 111, and a shielding layer 112, a water tree resistant insulating layer 113 and an insulating shielding layer 114 which are extruded outside the conductor 111 in a three-layer coextrusion mode. The conductor 111 is formed by twisting a plurality of layers of copper wires. The water tree resistant insulating layer 113 is made of a water tree resistant crosslinked polyethylene material. The semi-conductive water-blocking tape is wrapped outside the insulating shielding layer 114, then the wrapping copper tape shielding layer 112 is overlapped, and the semi-conductive waterproof layer 12 is longitudinally wrapped on the surface of each layer of stranded copper wires. By compressing the copper wires, the semi-conductive waterproof layer 12 is embedded in the gaps of the copper wires, and the gaps between the copper wires are reduced to prevent water vapor from propagating along the conductor 111. The insulation material adopts the water tree resistant crosslinked polyethylene insulation material, so that the cable insulation has good water tree resistant breakdown performance, and the waterproof performance of the cable is further improved; a layer of semiconductor water-resistant tape is overlapped and wrapped on the surface of the insulated wire core 11, and the wrapping layer is required to be flat and tight without leaking the wrapping; and after wrapping, overlapping wrapping copper strips on the semi-conductive tape for shielding, wherein the wrapping layer is required to be flat and tight and not leak the wrapping, and the longitudinal water blocking function of the insulated wire core 11 is realized by arranging the semi-conductive water blocking tape.

Referring to fig. 4 and 5, in particular, two sheets of support mesh 51 are provided in the curing section 5. The supporting net 51 is formed into a sheet structure by interlacing metal wires, and the mesh of the supporting net 51 is quadrangular. The support net 51 is laid along the length direction of the cable core 1, and the plane section of the support net 51 perpendicular to the length direction of the cable core 1 is arc-shaped. The support net 51 is provided at both ends with connection collars 511 for being fitted over the adjacent connection bars 42. The two support nets 51 are in two C-shaped structures which are away from each other, the support nets 51 are arranged to bend and bulge towards the direction away from the cable core 1, and the expansion diameter of the expansion part 61 is larger than the maximum distance between the support nets 51 and the first protective layer 13. The liquid supply pipe 6 is positioned between the middle position of the supporting net 51 and the cable body. An auxiliary net 52 is provided on the side of the support net 51 remote from the cable core 1. The auxiliary net 52 is also formed by interlacing wires, and the mesh is quadrangular. The two ends of the auxiliary net 52 are connected to the support net 51 in the direction of the parallel connection bars 42. With the direction of the support net 51 along the length of the cable core 1 as the horizontal direction, in the initial state, the length of the horizontal diagonal line of the support net 51 is longer than that of the vertical diagonal line. When the liquid supply tube 6 is expanded, the support net 51 is pressed outward from the side of the support net 51 near the cable core 1, so that the support net 51 is deformed until the mesh horizontal diagonal length of the support net 51 is smaller than the vertical diagonal length. And when the supporting net 51 is deformed by extrusion, the auxiliary net 52 deforms along with the deformation, and as the bending degree of the auxiliary net 52 is larger and larger, the auxiliary net 52 abuts against the second protective layer 2 from inside to outside, and extrudes the second protective layer 2 to deformation. Finally, the second protective layer 2 of the portion of the curing section 5 forms a structure that is approximately elliptical or racetrack. By the shape, the longitudinal projection area is increased, and compared with the original state, the influence caused by mud or mud flat settlement is reduced. And the partially deformed shape of the curing section 5 has smaller relative resistance to the movement of fluid in mud or mud flat, and reduces the horizontal thrust to the curing section 5 to a certain extent. In addition, since the solidified powder is filled in the solidifying section 5, the supporting net 51 and the auxiliary net 52 also provide an attaching effect to the solidified powder, and when the solidified powder is solidified, the solidified block is subjected to stress of the solidifying section 5, and the supporting net 51 and the auxiliary net 52 are subjected to tensile force of the solidifying section. Since the mesh holes of the support net 51 and the auxiliary net 52 are quadrangular, both the support net 51 and the auxiliary net 52 can be bent when the cable is twisted.

Referring to fig. 4 and 5, further, the blocking piece 3 is provided with a relief groove 31 through which the liquid supply pipe 6 can pass. The liquid supply pipe 6 is made of water seepage geotextile material. The liquid supply part comprises an expansion part 61 and a hard part 62 which are connected end to end, and the diameter of the expansion part 61 after expansion is larger than that of the hard part 62. The expansion part 61 is arranged in the curing section 5, the expansion part 61 is folded when in an initial state, and the total length of the expansion part 61 is larger than the length of the curing section 5. The hard part 62 is arranged in the buffer section 4, the inner wall of the hard part 62 is covered with a plastic film, and the outer wall of the tail end of the expansion part 61 is connected to the inner wall of the abdication groove 31 of the separation sheet 3 through adhesive. And the outer wall of the junction of the expansion portion 61 and the hard portion 62 is coated with a waterproof paint.

Further, the curing powder may be selected from the group including, but not limited to, the following:

And (3) carrying out hydration reaction on the concrete powder and water. Specifically, the concrete powder should be formed by mixing at least four clinker minerals of tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite, and the clinker minerals react with water. The hydration reaction of tricalcium silicate at normal temperature generates hydrated calcium silicate and calcium hydroxide, thereby solidifying. Hydration of dicalcium silicate is the same. The hydration of tricalcium aluminate generates calcium aluminate hydrate in a stable state, and finally the calcium aluminate hydrate is converted into water garnet. Notably, the inner layer of cured concrete blocks can impede further penetration of the body of water. Therefore, substances such as dihydrate gypsum and the like are added into the concrete to serve as retarders, so that the reaction is delayed, and water permeates into the concrete as much as possible. The water is preferably deionized water.

The ceramic powder is hydrated with water and cured while expanding. However, it should be noted that the ceramic powder generates a large amount of heat after the hydration reaction. Therefore, after the first water injection makes the support net 51 expand, the water in the pipe needs to be continuously rotated to dissipate heat through the water flow.

Montmorillonite powder, bentonite, etc., absorbs water and swells. And to a certain extent can remain solid and support the shape stability of the second protective layer 2.

And sodium polyacrylate or water-absorbent resin particles, etc., which absorb water and swell.

Referring to fig. 8, further, the outer wall of the barrier sheet 3 on the circumferential side is provided with a connecting groove 32, and the cross section of the connecting groove 32 is trapezoidal. The inner wall of the lock ring 21 is circumferentially provided with a connecting strip 211, the connecting strip 211 can be inserted into the connecting groove 32, and the connecting strip 211 has a rectangular cross section. The bottom inner wall of the connecting groove 32 is provided with a convex strip 321 with a triangular or trapezoidal section. The bottom of the connecting strip 211 is provided with a linear annular groove 212. The connection bar 211 is deformable. After the connecting bar 211 is inserted into the connecting groove 32, the protruding bar 321 and the groove 212 move relatively, and the connecting bar 211 is deformed and clamped in the connecting groove 32. A gap is left between the connecting strip 211 and the connecting groove 32 for the second protection layer 2 to enter. The connecting strip 211 drives the second protection layer 2 to be extruded into the connecting groove 32 for fixing.

With reference to fig. 1 and 9, further, the protective casing comprises two end sleeves 7. Two end sleeves 7 are respectively arranged at two ends of the second protective layer 2. One end of the end sleeve 7 is wrapped outside the first protective layer 13 and is connected by glue. The other end is connected to the second protective layer 2, also by means of glue. The second protective layer 2 is abutted against the first protective layer 13 by the end socket 7, and asphalt adhesive is smeared at the abutting part of the second protective layer 2 and the first protective layer 13. The infusion port 71 is vertically connected to the outer wall of the tip sleeve 7. The two ends of the liquid supply pipe 6 penetrate into the corresponding end socket 7 and are connected with the corresponding transfusion ports 71. The infusion port 71 is a short tube with threads on the outer wall. The infusion port 71 is detachably connected with a port cover 72, and the port cover 72 is screwed with the infusion port 71.

Further, after solidification of the solidifying section 5, the infusion ports 71 of the tip sleeve 7 and the tail sleeve can be opened simultaneously. Injecting sealing oil into the liquid supply pipe 6, discharging water, filling the liquid supply pipe 6 with the sealing oil, discharging water and injecting the sealing oil,

Further, the port cover 72 is made of transparent hard plastic material. The liquid level of the sealing oil can be observed through the infusion port 71, so that whether the cable is damaged or not can be judged.

The implementation principle of the embodiment is as follows:

The protective casing is buried in mud or mud flat, and the end socket 7 is exposed, and the port cover 72 at one end is opened. The water is continuously injected into the liquid supply pipe 6. The expansion portion 61 expands after the continuous filling of the liquid, and presses the support net 51 by the expansion of the liquid supply pipe 6, deforming the support net 51, thereby pressing the cured section 5 of the second protective layer 2 to the deformation, and pressing the section toward an elliptical shape. The water body permeates into the solidified powder, and the solidified powder is coagulated into blocks. After the curing powder reaction is completed and the powder is completely cured, the double-end port cover 72 is opened, sealing oil is injected from one end, the water is discharged due to the incompatibility of different densities until the sealing oil is filled in the liquid supply pipe 6, and the port cover 72 is closed.

Protection and support is provided by curing a portion of the segment 5 cable. And connecting a plurality of curing sections 5 through a buffer section 4; the spring 41 provides resistance to bending and radial stretching and compression. Thereby the cable has the stretching resistance, the compression resistance in the longitudinal direction, the radial direction and the transverse direction, and the service life of the cable is prolonged.

And the support net 51 deforms to squeeze the curing section 5 to deform, so that the section is squeezed towards ellipse, the influence caused by mud or mud flat settlement is reduced, and the horizontal thrust of the mud or mud flat to the curing section 5 is reduced.

Embodiment two:

the embodiment discloses a manufacturing method for producing the cable in the first embodiment, which comprises the following steps:

Step one, a preparation process of the cable core 1,

Firstly, preparing a conductor 111, wherein the conductor 111 is formed by twisting a plurality of layers of copper wires, longitudinally wrapping a semi-conductive waterproof layer 12 on the surface of each layer of twisted copper wires, and embedding the semi-conductive waterproof layer 12 into gaps of the copper wires through compression of the copper wires;

Secondly, preparing an insulated wire core 11, extruding a conductor 111 shielding layer 112, a water tree resistant insulating layer 113 and an insulating shielding layer 114 outside a conductor 111 in a three-layer coextrusion mode, and wrapping a semiconductor water-resistant belt outside the insulating shielding layer 114;

Filling water-blocking ropes in the gaps of the cable core 1, wherein the gaps at the center and the edge are required to be densely filled with the water-blocking ropes;

fourthly, the waterproof layer 12 is extruded outside the cable core 1;

Fifthly, extruding the first protective layer 13 outside the waterproof layer 12;

step two, sequentially penetrating the barrier sheets 3 at intervals on the outer side of the first protective layer 13, and installing springs 41;

Step three, selecting a polyethylene strip, wrapping a plurality of barrier sheets 3 in a curling way, fixing the barrier sheets by two ends through end socket 7, and sewing the joint parts through adhesive after butt joint of two side edges of the polyethylene strip to form a second protective layer 2; when in wrapping, wrapping is carried out one by one along the peripheral side of the barrier sheet 3, the barrier sheet is fixed through the lock ring 21, the lock ring 21 is broken to form an opening, and welding is carried out at the broken position; when wrapping the curing section 5, leaving pores, and injecting curing powder into the inner space;

and fourthly, coating asphalt liquid on the joint of the second protective layer 2, and covering the joint with a polyethylene strip made of a transparent material by using waterproof adhesive.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a cable suitable for mud, mud flat department, includes cable core (1), waterproof layer (12) and first protective layer (13) from inside to outside, its characterized in that: the cable still includes second protective layer (2), a plurality of separation piece (3) concentric connection in first protective layer (13) periphery side, second protective layer (2) parcel in a plurality of separation piece (3) periphery side, first protective layer (13) with pass through between second protective layer (2) separation piece (3) a plurality of buffer section (4) and a plurality of curing section (5), buffer section (4) with curing section (5) set up in turn, fill in curing section (5) have can with liquid reaction after the solidification powder of solidification, follow in buffer section (4) first protective layer (13) length direction is provided with spring (41), spring (41) both ends all are provided with connecting rod (42), connecting rod (42) wear to establish approximately separation piece (3) to correspond in curing section (5), the cable still includes liquid supply pipe (6) wear to establish liquid supply section (3) for curing section (5).

2. A mud, beach cable as set forth in claim 1, wherein: the liquid supply pipe (6) is made of water seepage geotechnical cloth, the liquid supply pipe (6) comprises an expansion part (61) and a hard part (62) which are connected end to end, the expansion part (61) is radially overlapped and arranged in the curing section (5), the hard part (62) is arranged in the buffer section (4), and a plastic film is circumferentially covered on the inner wall of the hard part (62).

3. A mud, beach adapted cable as set forth in claim 2, wherein: two support nets (51) are arranged in the curing section (5), the support nets (51) are made of deformable metal, the support nets (51) are arranged along the length direction of the cable core (1), the support nets (51) are bent and protruded away from the direction of the cable core (1), the two ends of each support net (51) are respectively connected with the corresponding connecting rods (42), the expansion parts (61) are located between the support nets (51) and the first protective layers (13), and the expanded diameters of the expansion parts (61) are larger than the maximum distance between the support nets (51) and the first protective layers (13) when the expansion parts are not deformed.

4. A mud, beach adapted cable as set forth in claim 3, wherein: the cable core is characterized in that an auxiliary net (52) is connected to one surface, far away from the cable core (1), of the supporting net (51), the auxiliary net (52) is coaxially arranged with the supporting net (51), and the curvature of the auxiliary net (52) is larger than that of the supporting net (51).

5. A mud, beach cable as defined in claim 4 wherein: the separation piece (3) week side outer wall has seted up spread groove (32), spread groove (32) cross-section is trapezoidal, second protective layer (2) outer wall is provided with a plurality of catch rings (21), catch ring (21) inner wall circumference is provided with connecting strip (211), connecting strip (211) can insert in spread groove (32), connecting strip (211) cross-section is the rectangle, spread groove (32) bottom inner wall is provided with sand grip (321) that the cross-section is triangle-shaped, annular recess (212) that the cross-section is a style of calligraphy have been seted up to connecting strip (211) bottom, connecting strip (211) have deformability.

6. A mud, beach adapted cable as set forth in claim 5, wherein: the utility model discloses a liquid supply pipe, including first protective layer (13), second protective layer (2) both ends are provided with an end sleeve (7) respectively, end sleeve (7) one end parcel in first protective layer (13) outside, the other end is connected second protective layer (2), end sleeve (7) will second protective layer (2) end supports tightly on first protective layer (13), end sleeve (7) are including infusion port (71), the outer wall of end sleeve (7) is worn out to infusion port (71) one end, and the other end intercommunication liquid supply pipe (6), infusion port (71) can be dismantled and be connected with port lid (72).

7. A mud, beach adapted cable as set forth in claim 6, wherein: the port cover (72) is made of transparent hard plastic materials.

8. A mud, beach adapted cable as set forth in claim 7, wherein: the cable core (1) comprises a plurality of insulating wire cores (11), each insulating wire core (11) comprises a conductor (111), and a shielding layer (112), a water tree resistant insulating layer (113) and an insulating shielding layer (114) are sequentially covered outside each conductor (111).

9. A method for manufacturing a cable suitable for mud and mud flat according to claim 8, which is characterized in that: comprising the following steps:

Step one, a preparation process of the cable core (1),

Firstly, preparing the conductor (111), wherein the conductor (111) is formed by twisting a plurality of layers of copper wires, a semi-conductive waterproof layer (12) is longitudinally wrapped on the surface of each layer of twisted copper wires, and the semi-conductive waterproof layer (12) is embedded into gaps of the copper wires through compression of the copper wires;

Secondly, preparing the insulated wire core (11), extruding and wrapping a shielding layer (112), the water tree resistant insulating layer (113) and the insulating shielding layer (114) of the conductor (111) outside the conductor (111) in a three-layer coextrusion mode, and wrapping a semi-conductive water resistance belt outside the insulating shielding layer (114);

filling water-blocking ropes in gaps of the cable core (1), wherein the gaps at the center and the edge are required to be densely filled with the water-blocking ropes;

fourthly, extruding the waterproof layer (12) on the outer side of the cable core (1);

Fifthly, extruding the first protective layer (13) outside the waterproof layer (12);

Secondly, sequentially penetrating the barrier sheets (3) at intervals outside the first protective layer (13), and installing the springs (41);

Step three, selecting a polyethylene strip, wrapping a plurality of barrier sheets (3) in a curling way, fixing the barrier sheets by two ends through the end socket (7), and sewing the joint by an adhesive after butt joint of two side edges of the polyethylene strip to form the second protective layer (2); when in wrapping, wrapping is carried out one by one along the peripheral side of the separation sheet (3), the separation sheet is fixed through the locking ring (21), the locking ring (21) is broken to form an opening, and welding is carried out at the broken position; when the solidifying section (5) is wrapped, a hole is reserved, and the solidifying powder is injected into the inner space of the hole;

and fourthly, coating asphalt liquid on the joint of the second protective layer (2), and covering the joint with a polyethylene strip made of a general material by using waterproof adhesive.