CN115800143A

CN115800143A - Bidirectional-sealing cable sealing method

Info

Publication number: CN115800143A
Application number: CN202211429732.3A
Authority: CN
Inventors: 杨英; 汪永茂; 王云帆; 方斌; 钟晖; 黄瑞明; 赵雨田; 冯雷
Original assignee: Fushun Obali Co ltd
Current assignee: Fushun Obali Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-14

Abstract

A method of bi-directionally sealing a cable, the method comprising: (1) arranging a load-bearing member on a hull of a target vessel; (2) Sleeving the filling member and the fastening member on the cable; (3) The cable is penetrated into the hollow structure of the bearing construction from one side and extends out from the other side; (4) Respectively feeding the first filling members at two ends of the cup-shaped guide pipe into the cup-shaped guide pipe along the inner wall of the cup-shaped guide pipe, so that the front end of the first filling member reaches the concave blocking ring; (5) locking the primary fastening components at two ends; (6) And a second filling member and a secondary fastening member are respectively arranged at two ends of the cup-shaped conduit. The invention can greatly improve the safety and reliability of the sealing of the outboard cable, is particularly suitable for being used in ocean underwater engineering such as submarines and the like, and has the advantages of simple structure, reasonable layout, simple and convenient construction, convenient cable maintenance and replacement, beautiful appearance, corrosion resistance, aging resistance and the like.

Description

Bidirectional-sealing cable sealing method

Technical Field

The invention relates to a sealing method for a deepwater cable, in particular to a sealing method for a through outboard cable, and belongs to the technical field of ocean underwater engineering.

Background

The known ocean underwater engineering technology is a comprehensive engineering technology which takes a diving technology and an underwater operation technology as a core and designs and builds an operation platform for exploiting, salvaging seabed oil and gas resources and mineral resources according to an underwater space technology.

The sealing technology for marine underwater engineering, such as submarine, to outboard cable usually adopts the steps of adding various sealing fillers into the cable sleeve and sealing with sealant to seal, so that the gap between the cable and the cable sleeve is completely bonded with the sealant into a whole, the cable and the cable sleeve are together arranged at the water contact end outside the cabin, and then the cable and the cable sleeve are wrapped and sealed outside the cabin by the sealant and are bonded and sealed with the hull.

In the practical application process of the sealing technology, the Poisson ratio and Young modulus of components such as sealing glue and filler, cable sheath and cable sleeve adopted by the sealing technology are greatly different, and the components cannot synchronously expand or contract when the environmental temperature and pressure change, so that the separation phenomenon between the cable and the sealing glue occurs, the water leakage phenomenon often occurs, and a large safety risk exists; meanwhile, the problems of high requirements on the technical capabilities of construction environment and constructors, inconvenience in maintenance, incapability of being reused and the like exist.

At present, a ship outboard cable laying structure (CN 209150650U) is known, the ship outboard cable laying structure is laid outside a hull of a ship body, the ship outboard cable laying structure includes a cable laying groove, a cable laying cover plate, a cable pressing strip and a sealing rubber strip, the cable laying groove is rectangular, and a long side of the rectangle is parallel to the hull and is embedded in the hull. The ship outboard cable structure related to in the prior art is only a sealing rubber belt, is not designed for underwater ships, and has the technical problem.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the outboard cable penetrating sealing method which can greatly improve the safety and reliability of outboard cable penetrating sealing, is particularly suitable for marine underwater engineering such as ships or submergence vehicles and the like, and has the advantages of simple structure, reasonable layout, simple and convenient construction, convenience for cable maintenance and replacement, attractive appearance, corrosion resistance, ageing resistance and the like.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a method of bi-directionally sealing a cable, the method comprising:

(1) Set up bearing member on the hull of target ship, bearing member is the ship board that tubular structure passed the target hull, and the middle part outside welding of tubular structure is on the target hull, with hull sealing connection: the bearing component comprises a cup-shaped conduit, and a concave blocking ring with the caliber gradually reduced is arranged in the middle of the interior of the cup-shaped conduit;

(2) Sleeving a filling member and a fastening member for one side of the ship or the ship outside on a cable, penetrating the cable into the hollow structure of the load-bearing construction from the side, and extending out from the other side;

(3) Sleeving a filling member and a fastening member which are used on the other side on the cable from the other side, wherein the fastening member comprises a primary fastening member and a secondary fastening member which are respectively arranged inside and outside two ends of the bearing member, two ends inside the cup-shaped conduit are respectively provided with a first locking structure which is in fit connection with the primary fastening member, and two ends outside the cup-shaped conduit are respectively provided with a second locking structure which is in fit connection with the secondary fastening member;

(4) Feeding the first filling members at two ends of the cup-shaped guide pipe into the cup-shaped guide pipe along the inner wall of the cup-shaped guide pipe respectively to enable the front end of the first filling member to reach the concave blocking ring;

(5) Screwing primary fastening members at two ends into two ends of the cup-shaped conduit respectively from two sides, and locking and extruding the first filling member;

(6) And second filling members are respectively arranged at two ends of the cup-shaped conduit, a secondary fastening member is respectively sleeved outside each second filling member, and the secondary fastening members are screwed at the end parts of the cup-shaped conduit.

In a preferred implementation manner, the second filling member is a truncated cone-shaped structure, a through hole for passing the cable is reserved at a central axis of the truncated cone, and a first cross-sectional dimension of the through hole is smaller than a second cross-sectional dimension of the through hole.

In another preferred implementation manner, the method further comprises providing inner threads on inner walls of both ends of the bearing member for matching with the outer threads on the primary fastening member, and providing outer threads on outer walls of both ends of the bearing member for matching with the inner threads on the secondary fastening member.

In another preferred implementation mode, the concave blocking ring is a middle protrusion on the inner wall of the cup-shaped catheter, and the transverse cross section of the middle protrusion is concave and sunken and closed; the inner end of the high-pressure sealing fastening rubber sleeve is arranged to be a top contraction inclined plane and is attached to the end face of the middle bulge.

In another preferred implementation, the method further comprises: and abutting the inner end of the primary filling member against the concave blocking ring, and locking the outer end of the primary filling member by the primary fastening member and inwards extruding the outer end of the primary filling member.

In another preferred implementation, the method further comprises: and tightly fitting the inner end of the secondary filling member at the inner side of the port of the cup-shaped conduit, and locking the outer end by using a secondary fastening member.

In another preferred implementation, the method further comprises: an air isolation chamber is formed between the secondary filling member and the primary fastening member.

In another preferred implementation, the method further comprises: and an anti-falling component is arranged between the secondary fastening component and the second locking structure, and the anti-falling component is a reverse locking anti-falling nut arranged on the locking thread.

In another preferred implementation manner, the first locking structure is a compression sealing thread, and the primary fastening member is a compression plug; the second locking structure is a locking thread, and the secondary fastening component is a locking gland nut;

the first-stage filling component is a high-pressure sealing fastening rubber sleeve, and the second-stage filling component is a conical high-pressure sealing locking rubber sleeve.

The through outboard cable sealing method of claim 9, wherein a compression flat gasket is provided between the compression plug and the high pressure seal-fastening gum cover.

The sealing device on which the method is based comprises a bearing component, a filling component and a fastening component; the bearing member is integrally of a tubular structure, the bearing member can be penetrated by a cable inside, and the bearing member is externally penetrated on the outboard pressure hull; the filling member is arranged between the cable and the bearing member and is high-pressure sealed from both ends by a fastening member sleeved on the cable.

Optionally, the filling member includes a primary filling member and a secondary filling member respectively disposed at two sides of the concave blocking ring; the inner end of the primary filling member is abutted against the concave blocking ring, the outer end of the primary filling member is matched with the primary fastening member, or the inner end and the outer end of the primary filling member are both abutted against the concave blocking ring; the inner end of the secondary filling member is tightly matched with the inner side of the port of the cup-shaped conduit, and the outer end of the secondary filling member is matched with the secondary fastening member.

Optionally, an air isolation cavity is formed between the secondary filling member and the primary fastening member.

Optionally, an anti-dropping member is further disposed between the secondary fastening member and the second locking structure.

Optionally, the anti-slip member is a reverse locking anti-slip nut disposed on the locking thread.

Optionally, the first locking structure is a compression sealing thread, and the primary fastening member is a compression plug; the second locking structure is a locking thread, and the secondary fastening component is a locking gland nut;

Optionally, a pressing flat gasket is arranged between the pressing plug and the high-pressure sealing and fastening rubber sleeve.

Compared with the prior art, the sealing device for the outboard cable penetrating through is characterized in that the bearing member, the filling member and the fastening member are combined for use, the bearing member is used as a bearing main body through which the cable penetrates, the filling member is used for fastening the cable and plays a role in high-pressure sealing, the problem that water is easy to leak when the environmental pressure and the temperature change is finally solved, the safety and the reliability of the outboard cable penetrating sealing can be greatly improved, the sealing device is particularly suitable for being used in marine underwater engineering such as submarines, and meanwhile, the sealing device has the advantages of being simple in structure, reasonable in layout, simple and convenient to construct, convenient to maintain and replace the cable, attractive in appearance, corrosion-resistant, ageing-resistant and the like.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic flow chart of a sealing method in one embodiment 1 of the present invention;

fig. 2a is a front view of embodiment 1 of the present invention, shown partially in half-section, with the upper half in section and the lower half in external view.

Fig. 2b is a front view, partially in half section, of a load bearing member according to an embodiment 1 of the present invention, with the top half in section and the bottom half in external view (see below).

Figure 2c is a side view of a load bearing member according to one embodiment 1 of the present invention.

FIG. 3a is a front view, shown partially in half, of a primary filler component in accordance with one embodiment 1 of the invention.

FIG. 3b is a side view of a primary filling member according to one embodiment 1 of the invention.

FIG. 3c is a front view, partially in half, of a secondary fill member according to one embodiment 1 of the present invention.

FIG. 3d is a side view of a secondary fill member in accordance with one embodiment of the invention 1.

FIG. 4a is a front view, partially in half, of a primary fastening member of one embodiment 1 of the present invention.

Fig. 4b is a side view of a primary fastening member in one embodiment 1 of the present invention.

FIG. 4c is a front view, partially in half, of a secondary fastening member of one embodiment 1 of the present invention.

Fig. 4d is a side view of a secondary fastening member in accordance with one embodiment of the present invention.

Fig. 5a is a front view, partially in half, of a compressed flat gasket in accordance with an embodiment 1 of the present invention.

Fig. 5b is a side view of a compressed flat gasket in accordance with one embodiment of the present invention 1.

Fig. 6 is a front view, partially in half, of an embodiment 2 of the invention.

Fig. 7a is a front view, partially in half, of the retaining member according to embodiment 1 of the present invention.

Fig. 7b is a side view of the retaining member in embodiment 1 of the present invention.

The reference numbers in the figures illustrate:

1-a load bearing member; 11-a cup-shaped catheter; 111-concave barrier ring; 1111-convex in the middle; 112-a first locking structure; 1121-pressing the sealing thread; 113-a second locking structure; 1131-locking thread;

2-a filler member; 21-a primary filling member; 211-high pressure sealing fastening gum cover; 22-a secondary filling member; 221-conical high-pressure sealing and locking rubber sleeve;

3-a fastening member; 31-a primary fastening member; 311-pressing plug; 3111-compressing the sealing external thread; 3112-bar locking jaw; 32-a secondary fastening member; 321-locking the gland nut; 3211-nut internal threads;

4-an air isolation chamber;

5-a run-off prevention member; 51-reverse locking anti-drop nut; 511-nut internal threads;

6-pressing the flat gasket;

10-through outboard cable seal; 20-outboard pressure hull; 30-a cable.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.

Example 1

Fig. 1 shows a schematic flow diagram of the inventive method, and fig. 2a, 2b, 2c, 3a, 3b, 3c, 3d, 4a, 4b, 4c, 4d, 5a and 5b show a schematic structural diagram of a sealing device 10 for carrying out the inventive method, in which the through-board outboard cable sealing device 10 comprises a carrier member 1, a filler member 2 and a fastening member 3; the bearing member 1 is integrally in a tubular structure, the inside of the bearing member can be penetrated by a cable 30, and the outside of the bearing member is penetrated on the outboard pressure hull 20; the filler member 2 is disposed between the cable 30 and the carrier member 1 and is high-pressure sealed from both ends by the fastening member 3 fitted over the cable 30.

The embodiment 1 is directed to the defects of the sealing structure of the outboard cable used in the current marine underwater engineering such as ships or submarines, and provides a sealing device especially suitable for the penetration of underwater projects to the outboard cable, specifically, the outboard cable is laid on the outboard pressure hull 20 through the bearing member 1, the cable 30 is fastened and sealed by the internal filling member 2, and then the cable 30 is locked and strongly sealed by the fastening member 3.

In the specific application of the through outboard cable sealing device 10 in this embodiment 1, the bearing member 1 used as the main body of the bearing cable 30 can be made of special marine steel, and the concave blocking ring 111, the pressing sealing thread 1121, and the locking thread 1131 thereon can be completed by an integrated machining process; the filling member 2 of the cable 30 can be formed by a high-quality special rubber die-casting process; the fastening member 3, which serves to enhance the sealing performance, may be machined using a specific copper material. The components prepared from the material are sequentially assembled to obtain the integral structure of the outboard cable sealing device 10 penetrated in the embodiment 1, and the traditional structural style of the product in practical use does not have the design, so that the water leakage phenomenon often occurs in the actual use process, and the great threat is caused to the personal safety.

In a further alternative embodiment of this embodiment 1, the fastening members 3 comprise primary fastening members 31 and secondary fastening members 32, which are respectively disposed inside and outside the two ends of the load-bearing member 1.

In a further alternative embodiment of this embodiment 1, the carrier member 1 comprises a cup-shaped conduit 11, and the cup-shaped conduit 11 has a female blocking ring 111 with a gradually reduced diameter in the middle of its interior, which is in contact with the cable 30; the two ends of the interior of the cup-shaped conduit 11 are respectively provided with a first locking structure 112 which is in fit connection with the primary fastening member 31, and the two ends of the exterior of the cup-shaped conduit 11 are respectively provided with a second locking structure 113 which is in fit connection with the secondary fastening member 32.

In a further optional embodiment of this embodiment 1, the concave blocking ring 111 is an overall annular middle protrusion 1111 on the inner wall of the cup-shaped catheter 11, and the transverse cross-sectional shape of the middle protrusion 1111 is a concave sunken closing-in;

the inner end of the high-pressure sealing and fastening rubber sleeve 211 is provided with a sharp angle which is contracted towards the top end and is jointed with the end surface of the middle protrusion 1111.

The concave sunken closing-in structure can be formed by forming an included angle between the middle protrusion 1111 and the inner wall of the cup-shaped catheter 11 in the processing process, so that the end surface of the concave blocking ring 111 becomes the concave sunken closing-in, and the inner wall of the cup-shaped catheter 11 and the concave blocking ring 111 are combined to form a whole with a concave transverse section. In this embodiment 1, the concave undercut closed-off cross-section is triangular. In the embodiment, the inner end of the high-pressure sealing fastening rubber sleeve is arranged to be a top contraction inclined plane and is attached to the end face of the middle bulge.

The inner end of the sharp corner of the high-pressure sealing fastening rubber sleeve 211 is tightly combined with the concave sunken closing-in of the middle bulge 1111 to form a sealing surface, and the two high-pressure sealing fastening rubber sleeves 211 are symmetrically filled from two sides to the center in the cup-shaped guide pipe 11, so that the cable 30 is locked and the strong sealing performance is achieved. Another important advantage of the solution of the present invention is that the higher the external water pressure, the more the high pressure seal fastening gum cover 211 is pressed inwards, the better the sealing effect is achieved.

In a further alternative embodiment of this embodiment 1, the filling member 2 comprises a primary filling member 21 and a secondary filling member 22 respectively disposed on both sides of the concave barrier ring 111; the primary filling member 21 has an inner end abutting against the female barrier ring 111 and an outer end cooperating with the primary fastening member 31. In this embodiment, the inner side (the inner end and the outer end of the hull) of the cup-shaped conduit 11 is provided with an internal thread matching with the primary fastening member 31, the annular outer surface of the primary fastening member 31 is provided with an external thread matching with the internal thread, and the primary fastening member 31 is fastened in the cup-shaped conduit 11 by threaded connection to extrude the primary filling member 21 inwards.

The middle parts of the first-stage filling member 21, the second-stage filling member 22 and the second-stage fastening member 32 are all hollow structures and are sleeved outside the cable.

The inner end of the secondary filling member 22 fits closely inside the port of the cup-shaped conduit 11 and the outer end fits with the secondary fastening member 32.

The cable sealing method comprises the following specific processes:

(1) Set up load-bearing member 1 on the hull of target ship, load-bearing member 1 is the ship board that tubular structure passed the target hull, and the middle part outside welding of tubular structure is on the target hull, with hull sealing connection: the bearing component comprises a cup-shaped conduit, and a concave blocking ring with the caliber gradually reduced is arranged in the middle of the interior of the cup-shaped conduit;

(4) Respectively feeding the first filling members at two ends of the cup-shaped guide pipe into the cup-shaped guide pipe along the inner wall of the cup-shaped guide pipe, so that the front end of the first filling member reaches the concave blocking ring;

(5) Screwing the primary fastening members at two ends into two ends of the cup-shaped conduit from two sides respectively, and locking and extruding the first filling member;

(6) And second filling members are respectively arranged at two ends of the cup-shaped guide pipe, a secondary fastening member is respectively sleeved outside each second filling member, and the secondary fastening members are screwed at the end parts of the cup-shaped guide pipe.

In this embodiment, the second filling member is a circular truncated cone-shaped structure, a through hole for the cable to pass through is reserved in a middle shaft of the circular truncated cone, and a first cross-sectional dimension of the second filling member is smaller than a second cross-sectional dimension of the circular truncated cone.

The method further comprises the step of respectively arranging internal threads matched with the external threads on the primary fastening member on the inner walls of the two ends of the bearing member, and respectively arranging external threads matched with the internal threads on the secondary fastening member on the outer walls of the two ends of the bearing member, wherein the external threads are respectively used as locking structures.

The method further comprises the following steps: and abutting the inner end of the primary filling member against the concave blocking ring, and locking the outer end of the primary filling member by the primary fastening member and inwards extruding the outer end of the primary filling member.

The method further comprises the following steps: and tightly fitting the inner end of the secondary filling member at the inner side of the port of the cup-shaped conduit, and locking the outer end of the secondary filling member by using a secondary fastening member.

The method further comprises the following steps: an air isolation chamber is formed between the secondary filling member and the primary fastening member. The method further comprises the following steps: and an anti-falling component is arranged between the secondary fastening component and the second locking structure, and the anti-falling component is a reverse locking anti-falling nut arranged on the locking thread.

In the present embodiment 1, two primary fastening members 31 and two secondary fastening members 32 are provided, but not limited thereto, at least two primary fastening members 31 and at least two secondary fastening members 32 may be provided. The number of the concave barrier rings 111 is not limited to one in embodiment 1, and at least one may be provided. Two primary filling members 21 are provided in this embodiment, in which case the inner end of the primary filling member 21 rests against the female barrier ring 111 and the outer end cooperates with the primary fastening member 31.

In a further alternative embodiment of this embodiment 1, an air insulating chamber 4 is formed between the secondary filling member 22 and the primary fastening member 31. The air insulating chamber 4 is generally pre-configured after the assembly of the components is completed.

With the help of the air isolation cavity 4, after the high-pressure sealing fastening rubber sleeve 211 is locked and fixed by the pressing plug 311, the compressed air formed between the high-pressure sealing fastening rubber sleeve 211 and the conical high-pressure sealing fastening rubber sleeve 221 tightly pushes the conical high-pressure sealing fastening rubber sleeve 221 in the cup-shaped guide pipe 11 to play a role in sealing, and along with the increase of external pressure, the filling member can be further compressed inwards, so that the sealing performance is further enhanced.

In a further alternative embodiment of this embodiment 1, the secondary filling member 22 is generally in the shape of a truncated cone, the smaller diameter side facing the cup-shaped duct 11. The secondary fastening member 32 is a hollow cap-shaped structure, and has a ring-shaped fixing structure and a cover plate provided with an end, the two are integrally formed, the ring-shaped fixing structure has an internal thread, the outer side of the end of the cup-shaped conduit 11 has an external thread matched with the internal thread, and the secondary fastening member 32 is fixed at the end of the cup-shaped conduit 11 through the internal thread. The first locking structure 112 is a pressing sealing thread 1121, and the primary fastening member 31 is a pressing plug 311; the second locking structure 113 is a locking thread 1131, and the secondary fastening member 32 is a locking gland nut 321.

The first-stage filling member 21 is a high-pressure sealing and fastening rubber sleeve 211, and the second-stage filling member 22 is a conical high-pressure sealing and locking rubber sleeve 221.

The outer end of the pressing plug 311 may be specifically provided with a bar-shaped locking wrench opening 3112 on a circular plane, and a pressing sealing external thread 3111 is provided on a circumferential end face, the bar-shaped locking wrench opening 3112 and the pressing sealing external thread 3111 are integrally machined, and are matched with the pressing sealing threads 1121 provided at two ends inside the cup-shaped guide tube 11, so as to extrude the high-pressure sealing fastening rubber sleeve 211, so that the high-pressure sealing fastening rubber sleeve and the concave blocking ring are prevented from deforming downwards by a reverse acting force, thereby achieving a better locking cable 30 and realizing a first strong sealing performance.

The two ends of the cup-shaped guide pipe 11 are symmetrically assembled towards the middle of the cup-shaped guide pipe 11, and the cone-shaped high-pressure sealing locking rubber sleeve 221 is clamped by penetrating the outboard cable 30 more tightly under the action of the cone-shaped high-pressure sealing locking rubber sleeve 221 on the inner wall of the cup-shaped guide pipe 11, so that the two ends of the cup-shaped guide pipe 11 are sealed more tightly, and a secondary sealing effect is achieved. The nut internal thread 3211 arranged inside the locking gland nut 321 cooperates with the locking thread 1131 to perform extrusion locking on the conical high-pressure sealing locking rubber sleeve 221, so that the conical high-pressure sealing locking rubber sleeve 221 is prevented from loosening, and the secondary locking sealing efficiency is better exerted.

In a further alternative embodiment of this embodiment 1, a compression flat gasket 6 is provided between the compression plug 311 and the high-pressure seal fastening rubber sleeve 211.

The function of the pressing flat washer 6 is to prevent the pressing plug 311 from scratching the high-pressure sealing fastening rubber sleeve 211 during rotation and locking, and avoid losing the sealing performance. The pressing flat washer 6 may be completed by a punching process.

Example 2

In embodiment 2 shown in fig. 6, 7a and 7b, a through outboard cable sealing device 10 is provided, the technical solution is substantially the same as embodiment 1, and only the following points are different.

In the embodiment of this embodiment 2, a retaining member 5 is further disposed between the secondary fastening member and the second locking structure 113. The anti-slip member 5 is used in cooperation with the locking screw for preventing the second locking structure 113 from being released.

As one of further alternative embodiments of the embodiment 2, the anti-drop component 5 is a reverse lock anti-drop nut 51 arranged on the lock thread. The nut internal thread 511 of the reverse locking anti-drop nut 51 is matched with the locking thread and is also matched with the locking gland nut 321; the reverse locking anti-drop nut 51 is firstly screwed into the external thread 113 on the outer side of the cup-shaped guide pipe to be screwed into a sufficient space towards the ship body direction, and after the locking gland nut 321 is locked, the reverse locking anti-drop nut 51 is rotated reversely (far away from the ship body) and is tightly jacked with the locking gland nut 321, so that the locking gland nut 321 is prevented from loosening and dropping. The reverse locking anti-drop nut 51 and the locking nut gland can be completely made of specific copper through mechanical processing.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the technical spirit of the present invention are included in the protection scope of the present invention.

Claims

1. A method of bi-directionally sealing a cable, the method comprising:

(1) The bearing component is arranged on the hull of the target ship, the bearing component is a ship board of which the tubular structure penetrates through the target hull, and the outer side of the middle part of the tubular structure is welded on the target hull and is connected with the hull in a sealing mode: the bearing component comprises a cup-shaped conduit, and a concave blocking ring with the caliber gradually reduced is arranged in the middle of the inner part of the cup-shaped conduit;

(2) Sleeving a filling member and a fastening member for one side on a cable from one side in or out of the ship, penetrating the cable into the hollow structure of the bearing construction from the side, and extending out from the other side;

2. The through outboard cable sealing method of claim 1, wherein the second filler member is a circular truncated cone shaped structure, a through hole for passing the cable is reserved at a middle axis of the circular truncated cone, and a first end face size of the through outboard cable sealing method is smaller than a second end face size of the through outboard cable sealing method.

3. The through outboard cable sealing method of claim 1, further comprising providing internal threads on inner walls of both ends of the carrier member for mating with the external threads on the primary fastening member, respectively, and providing external threads on outer walls of both ends of the carrier member for mating with the internal threads on the secondary fastening member, respectively.

4. The through outboard cable sealing method of claim 1, wherein the concave barrier ring is a middle protrusion on the inner wall of the cup-shaped conduit, and the transverse cross-sectional shape of the middle protrusion is a concave sunken closed-off port; the inner end of the high-pressure sealing fastening rubber sleeve is arranged to be a top contraction inclined plane and is attached to the end face of the middle bulge.

5. The method of sealing through outboard cables of claim 1, further comprising: and abutting the inner end of the primary filling member against the concave blocking ring, and locking the outer end of the primary filling member by the primary fastening member and inwards extruding the outer end of the primary filling member.

6. The through outboard cable sealing method of claim 1, further comprising: and tightly fitting the inner end of the secondary filling member at the inner side of the port of the cup-shaped conduit, and locking the outer end of the secondary filling member by using a secondary fastening member.

7. The method of sealing through outboard cables of claim 1, further comprising: an air isolation chamber is formed between the secondary filling member and the primary fastening member.

8. The method of sealing through outboard cables of claim 6, further comprising: and an anti-falling component is arranged between the secondary fastening component and the second locking structure, and the anti-falling component is a reverse locking anti-falling nut arranged on the locking thread.

9. The through outboard cable sealing method of claim 8, wherein the first locking structure is a compression seal thread, the primary fastening member is a compression plug; the second locking structure is a locking thread, and the secondary fastening component is a locking gland nut;

10. The through outboard cable sealing method of claim 9, wherein a compression flat gasket is provided between the compression plug and the high pressure seal-fastening gum cover.