CN219918327U

CN219918327U - Cable sealing structure and hull structure

Info

Publication number: CN219918327U
Application number: CN202321328821.9U
Authority: CN
Inventors: 胡成; 李春明
Original assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Current assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-10-27
Anticipated expiration: 2033-05-29

Abstract

The utility model belongs to the technical field of cable sealing, and discloses a cable sealing structure and a ship body structure, wherein the cable sealing structure is used for sealing between a cable and a ship bottom plate, an outer pipe sleeve penetrates through a through hole and is attached to the hole wall of the through hole to form sealing, the outer pipe sleeve is sleeved on an inner pipe sleeve, a sealing component comprises a stuffing box, one end of the stuffing box is fixedly connected with the inner pipe sleeve and forms sealing with the inner pipe sleeve, the outer wall of the stuffing box is fixedly connected with the outer pipe sleeve and forms sealing with the outer pipe sleeve, the stuffing box is used for a cable to penetrate through, sealing glue is arranged between the inner wall of the stuffing box and the cable, so that leakage of sea water from the inner wall of the stuffing box to the cable is prevented, effective sealing can be formed between the cable and the ship bottom plate through the structure, and leakage of sea water from all positions to the inside of a ship is prevented.

Description

Cable sealing structure and hull structure

Technical Field

The utility model relates to the technical field of cable sealing, in particular to a cable sealing structure and a ship body structure.

Background

The bottom of a ship is typically fitted with a sensor, and the cable for connecting the sensor needs to pass through the hull structure into the interior of the hull, and thus a cable sealing structure is usually required for sealing between the cable and the hull, preventing leakage of seawater.

The current cable sealing structure is usually of a single-layer structure, namely, a cable is arranged in a protective sleeve, a protective pipeline penetrates through a through hole of a ship body and is sealed with the ship body through welding, and sealing glue is filled between the protective sleeve and the cable. However, because the water pressure at the bottom of the ship is large, the protective sleeve is easy to damage under the soaking of long-time high water pressure, so that a tiny leakage phenomenon occurs.

Disclosure of Invention

According to one aspect of the utility model, the utility model provides a cable sealing structure, so as to solve the problem that a protective sleeve of the cable sealing structure in the prior art is easy to damage under long-time high-water-pressure soaking, and a tiny leakage phenomenon occurs.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cable sealing structure for sealing between a cable and a bilge plate having a through hole for the cable to pass therethrough, comprising:

the outer pipe sleeve penetrates through the through hole and is attached to the wall of the through hole, and the outer pipe sleeve is fixedly connected to the ship bottom plate;

the outer pipe sleeve is sleeved on the inner pipe sleeve, and the inner pipe sleeve is used for the cable to pass through;

the sealing assembly comprises a stuffing box, one end of the stuffing box is fixedly connected to the inner pipe sleeve and forms sealing with the inner pipe sleeve, the outer wall of the stuffing box is fixedly connected to the outer pipe sleeve and forms sealing with the outer pipe sleeve, the stuffing box is used for a cable to pass through, and sealing glue is arranged between the inner wall of the stuffing box and the cable.

As a preferred scheme of the cable sealing structure, the stuffing box is provided with an internal thread, the sealing assembly further comprises a compression nut used for the cable to pass through, the compression nut is provided with an external thread in threaded connection with the internal thread, and the end face of the compression nut is used for compressing the sealant.

As the preferable scheme of cable seal structure, seal assembly still includes first sealing washer, first sealing washer set up in gland nut's terminal surface with between the seal gum.

As the preferable scheme of the cable sealing structure, the external thread extends out of the stuffing box and is used for connecting an external metal hose.

As the preferable scheme of cable seal structure, the stuffing box has thick footpath end and thin footpath end, the internal thread set up in thick footpath end, the terminal surface fixed connection of thin footpath end in the inner tube cover, the outer wall fixed connection of thick footpath end in the outer tube cover, the sealant set up in between the cable with the thick footpath end.

As the preferable scheme of cable seal structure, thick footpath end has first pipeline section and second pipeline section, first pipeline section for the second pipeline section is close to thin footpath end, the internal thread set up in the second pipeline section, the sealant set up in between cable and the first pipeline section.

As the cable seal structure's preferred scheme, thick footpath end with have the step face between the thin footpath end, seal assembly still includes the second sealing washer, the second sealing washer set up in between the step face with the sealant.

As the preferable scheme of cable seal structure, the terminal surface of thin footpath end with the terminal surface laminating of inner tube cover, at least part the outer wall of thick footpath end with the inner wall laminating of outer tube cover.

As the preferable scheme of cable seal structure, seal assembly is provided with two, two seal assembly set up respectively in the both ends of interior pipe box.

According to another aspect of the present utility model there is provided a hull structure comprising a bilge plate and the cable sealing structure described above.

The beneficial effects of the utility model are as follows:

the utility model provides a cable sealing structure, which is used for sealing between a cable and a ship bottom plate, an outer pipe sleeve penetrates through a through hole and is attached to the hole wall of the through hole to form a seal, so that seawater is prevented from leaking between the outer pipe sleeve and the hole wall of the through hole, an outer pipe sleeve is arranged on an inner pipe sleeve, a sealing component comprises a stuffing box, one end of the stuffing box is fixedly connected with the inner pipe sleeve and forms a seal with the inner pipe sleeve to prevent the seawater from leaking between the stuffing box and the inner pipe sleeve, the outer wall of the stuffing box is fixedly connected with the outer pipe sleeve and forms a seal with the outer pipe sleeve, so that the seawater is prevented from leaking between the outer wall of the stuffing box and the outer pipe sleeve, the stuffing box is used for a cable to pass, a sealing glue is arranged between the inner wall of the stuffing box and the cable, so that the seawater is prevented from leaking between the inner wall of the stuffing box and the cable, an effective seal can be formed between the cable and the ship bottom plate through the structure, and the seawater is prevented from leaking into the ship.

The utility model also provides a ship body structure, which comprises the cable sealing structure, wherein the cable sealing structure can form effective sealing between a cable and a ship bottom plate to prevent seawater from leaking from various positions to the inside of a ship, and in addition, the cable sealing structure is simultaneously provided with an outer pipe sleeve and an inner pipe sleeve to form double-layer sealing, so that the seawater leakage can be effectively prevented, and the durability is good.

Drawings

FIG. 1 is a schematic view of a cable seal structure in an embodiment of the utility model;

FIG. 2 is a schematic illustration of the seal assembly in an embodiment of the present utility model;

fig. 3 is a schematic view of a structure of a press nut according to an embodiment of the present utility model.

In the figure:

100. a bottom board of the ship; 200. sealing glue;

1. an outer tube sleeve;

2. an inner tube sleeve;

3. a seal assembly; 31. a stuffing box; 311. a thick diameter end; 3111. a first pipe section; 3112. a second pipe section; 312. a small diameter end; 313. an internal thread; 314. a step surface; 32. a compression nut; 321. an external thread; 33. a first seal ring; 34. and a second sealing ring.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The bottom of a ship is typically fitted with a sensor, and the cable for connecting the sensor needs to pass through the hull structure into the interior of the hull, and thus a cable sealing structure is usually required for sealing between the cable and the hull, preventing leakage of seawater. The current cable sealing structure is usually of a single-layer structure, namely, a cable is arranged in a protective sleeve, a protective pipeline penetrates through a through hole of a ship body and is sealed with the ship body through welding, and sealing glue is filled between the protective sleeve and the cable. However, because the water pressure at the bottom of the ship is large, the protective sleeve is easy to damage under the soaking of long-time high water pressure, so that a tiny leakage phenomenon occurs.

To the above-mentioned problem, this embodiment provides cable seal structure to solve the problem that cable seal structure's protection pipe box easily takes place the damage under long-time high water pressure's soak among the prior art, leads to appearing tiny seepage phenomenon.

Referring to fig. 1 to 3, the cable sealing structure is used for sealing between a cable and a bottom plate 100, and the bottom plate 100 has a through hole 101 for the cable to pass through. Wherein cables may be used to connect sensors that are mounted outside of the bilge 100. The sensor can be a vibration sensor for detecting the vibration of a ship shafting, a temperature sensor for detecting water temperature or an oxygen sensor for detecting oxygen content in seawater, and the like, and the cable can be used for other instruments which are required to be arranged outside the ship body and are required to be communicated with equipment or devices inside the ship through the cable.

With continued reference to fig. 1-3, the cable sealing structure comprises an outer sleeve 1, an inner sleeve 2 and a sealing assembly 3, wherein the outer sleeve 1 is penetrated in the through hole 101 and is attached to the wall of the through hole 101 to form a seal, so that seawater is prevented from leaking between the outer sleeve 1 and the wall of the through hole 101, and the outer sleeve 1 is fixedly connected with the ship bottom plate 100. The outer pipe sleeve 1 is sleeved on the inner pipe sleeve 2, and the inner pipe sleeve 2 is used for a cable to pass through. The seal assembly 3 includes a packing box 31, one end of the packing box 31 is fixedly connected to the inner tube housing 2 and forms a seal with the inner tube housing 2 to prevent leakage of seawater from between the packing box 31 and the inner tube housing 2, the outer wall of the packing box 31 is fixedly connected to the outer tube housing 1 and forms a seal with the outer tube housing 1 to prevent leakage of seawater from between the outer wall of the packing box 31 and the outer tube housing 1, the packing box 31 is used for a cable to pass through, and a sealant 200 is provided between the inner wall of the packing box 31 and the cable to prevent leakage of seawater from between the inner wall of the packing box 31 and the cable.

Alternatively, the outer sleeve 1 and the bottom plate 100, the stuffing box 31 and the inner sleeve 2 and the outer wall of the stuffing box 31 and the outer sleeve 1 are fixedly connected by welding, and form a seal.

In this embodiment, two sealing assemblies 3 are provided, and two sealing assemblies 3 are respectively disposed at two ends of the inner pipe sleeve 2, wherein one sealing assembly 3 is immersed in seawater, and the other sealing assembly 3 is located inside the ship.

With continued reference to fig. 1-3, stuffing box 31 has internal threads 313 and seal assembly 3 further includes a gland nut 32 for the passage of a cable through inner shroud 2, stuffing box 31, and gland nut 32 in that order. The compression nut 32 has an external thread 321 in threaded connection with the internal thread 313, and an end surface of the compression nut 32 is used for compressing the sealant 200, so that the sealing performance of the position of the sealant 200 can be improved by compressing the sealant 200.

With continued reference to fig. 1-3, the seal assembly 3 further includes a first seal ring 33, where the first seal ring 33 is disposed between the end surface of the compression nut 32 and the sealant 200, and the first seal ring 33 can block the flow of the sealant 200, so as to prevent the sealant 200 from flowing in a direction close to the compression nut 32, so as to further improve the sealing effect, and prevent the sealant 200 in the seal assembly 3 immersed in seawater from directly contacting with the seawater, and prevent the sealant 200 from failing due to impact or corrosion caused by the seawater.

With continued reference to fig. 1-3, optionally, the external thread 321 extends out of the stuffing box 31 and is used to connect an external metal hose, where the portion of the external thread 321 extending out of the stuffing box 31 may be used as a joint of the external metal hose, and after the cable passes through the cable sealing structure, the cable continues to pass through the external metal hose, and is protected by the external metal hose.

With continued reference to fig. 1-3, the specific structure of the stuffing box 31 is that the stuffing box 31 has a thick diameter end 311 and a thin diameter end 312, the diameter of the thick diameter end 311 is larger than that of the thin diameter end 312, the internal thread 313 is arranged at the thick diameter end 311, the end face of the thin diameter end 312 is fixedly connected to the inner pipe sleeve 2, the outer wall of the thick diameter end 311 is fixedly connected to the outer pipe sleeve 1, and the sealant 200 is arranged between the cable and the thick diameter end 311. Because the outer wall of the thick diameter end 311 is fixedly connected with the outer pipe sleeve 1, the end face of the thin diameter end 312 is fixedly connected with the inner pipe sleeve 2, a cavity can be formed between the outer pipe sleeve 1 and the inner pipe sleeve 2, and the impact or extrusion of the water pressure of seawater to the inner pipe sleeve 2 can be avoided.

Further, the packing box 31 is stepped, specifically, a step surface 314 is provided between the thick diameter end 311 and the thin diameter end 312, the sealing assembly 3 further includes a second sealing ring 34, the second sealing ring 34 is disposed between the step surface 314 and the sealing compound 200, and the sealing compound 200 can be prevented from flowing in a direction away from the compression nut 32 by the second sealing ring 34.

With continued reference to fig. 1-3, the large diameter end 311 has a first tube segment 3111 and a second tube segment 3112, the first tube segment 3111 is adjacent to the small diameter end 312 relative to the second tube segment 3112, the internal thread 313 is disposed on the second tube segment 3112, the internal thread 313 of the second tube segment 3112 is connected with the external thread 321 of the compression nut 32, and the external thread 321 cannot be connected to the first tube segment 3111, so that the sealant 200 is disposed between the cable and the first tube segment 3111 to fill the interior of the first tube segment 3111, during the filling process of the sealant 200, more sealant 200 may be filled to enable a portion of the sealant 200 to enter the second tube segment 3112, and the external thread 321 of the compression nut 32 is screwed relative to the internal thread 313 after screwing in the internal thread 313 to compress the sealant 200.

Optionally, the end surface of the small diameter end 312 is attached to the end surface of the inner tube sleeve 2, so that a seal is formed between the end surface of the small diameter end 312 and the end surface of the inner tube sleeve 2, and at least part of the outer wall of the large diameter end 311 is attached to the inner wall of the outer tube sleeve 1, so that a seal is formed between the outer wall of the large diameter end 311 and the inner wall of the outer tube sleeve 1.

The following describes the installation procedure of the cable and cable sealing structure in this embodiment with reference to fig. 1 to 3:

the two sealing assemblies 3 and the interior of the inner tube sleeve 2 are first cleaned with alcohol. The cable is passed through the gland nut 32, the first seal ring 33, the stuffing box 31 and the second seal ring 34 of one of the seal assemblies 3 in sequence, then through the inner jacket 2, and through the second seal ring 34, the stuffing box 31, the first seal ring 33 and the gland nut 32 of the other seal assembly 3 in sequence, and the second seal ring 34 is installed so that the second seal ring 34 abuts against the step surface 314. The sealant 200 in this embodiment includes a first component and a second component, the first component is added and fully stirred, then the second component is added, and fully stirred again to uniformly mix the first component and the second component, after uniformly mixing the components of the sealant 200, the sealant 200 is respectively filled between the cable and the stuffing boxes 31 of the sealing assemblies 3 at the two ends, then two first sealing rings 33 are installed, and the compression nuts 32 at the two ends are screwed to compact the sealant 200, and in the screwing process, the cable is bound by using a binding belt to fix the cable relative to the stuffing boxes. After the completion of the installation, it is left for 24 hours to sufficiently cure the sealant 200.

The embodiment also provides a hull structure, including the ship bottom plate 100 and above-mentioned cable seal structure, this cable seal structure can form effective seal between cable and ship bottom plate 100, prevents that the sea water from leaking to inside the boats and ships from each position, and in addition, cable seal structure is equipped with outer pipe box 1 and inner pipe box 2 simultaneously to form double-deck sealedly, can effectively prevent the sea water seepage, the durability is good.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Cable sealing structure for sealing between a cable and a bilge plate (100), the bilge plate (100) having a through hole (101) for the cable to pass through, characterized by comprising:

the outer pipe sleeve (1) is penetrated through the through hole (101) and is attached to the hole wall of the through hole (101), and the outer pipe sleeve (1) is fixedly connected to the ship bottom plate (100);

the inner pipe sleeve (2), the outer pipe sleeve (1) is sleeved on the inner pipe sleeve (2), and the inner pipe sleeve (2) is used for the cable to pass through;

the sealing assembly (3) comprises a stuffing box (31), one end of the stuffing box (31) is fixedly connected with the inner pipe sleeve (2) and sealed with the inner pipe sleeve (2), the outer wall of the stuffing box (31) is fixedly connected with the outer pipe sleeve (1) and sealed with the outer pipe sleeve (1), the stuffing box (31) is used for a cable to pass through, and sealing glue (200) is arranged between the inner wall of the stuffing box (31) and the cable.

2. The cable sealing structure according to claim 1, characterized in that the stuffing box (31) has an internal thread (313), the sealing assembly (3) further comprises a compression nut (32) for the cable to pass through, the compression nut (32) has an external thread (321) in threaded connection with the internal thread (313), and an end face of the compression nut (32) is used for compressing the sealant (200).

3. The cable sealing arrangement according to claim 2, characterized in that the sealing assembly (3) further comprises a first sealing ring (33), the first sealing ring (33) being arranged between the end face of the gland nut (32) and the sealing compound (200).

4. The cable sealing arrangement according to claim 2, characterized in that the external thread (321) extends out of the stuffing box (31) and is used for connecting an external metal hose.

5. The cable sealing structure according to any one of claims 2 to 4, wherein the stuffing box (31) has a thick diameter end (311) and a thin diameter end (312), the internal thread (313) is provided at the thick diameter end (311), an end face of the thin diameter end (312) is fixedly connected to the inner jacket (2), an outer wall of the thick diameter end (311) is fixedly connected to the outer jacket (1), and the sealant (200) is provided between the cable and the thick diameter end (311).

6. The cable sealing structure according to claim 5, wherein the thick diameter end (311) has a first pipe section (3111) and a second pipe section (3112), the first pipe section (3111) is close to the thin diameter end (312) with respect to the second pipe section (3112), the internal thread (313) is provided to the second pipe section (3112), and the sealant (200) is provided between the cable and the first pipe section (3111).

7. The cable sealing structure according to claim 5, wherein a step surface (314) is provided between the thick diameter end (311) and the thin diameter end (312), and the sealing assembly (3) further comprises a second sealing ring (34), and the second sealing ring (34) is arranged between the step surface (314) and the sealing glue (200).

8. The cable sealing structure according to claim 5, wherein an end face of the small diameter end (312) is fitted with an end face of the inner jacket (2), and at least part of an outer wall of the large diameter end (311) is fitted with an inner wall of the outer jacket (1).

9. Cable sealing arrangement according to any one of claims 1-4, wherein two sealing assemblies (3) are provided, two sealing assemblies (3) being arranged at each end of the inner tube jacket (2).

10. Hull structure, characterized in that it comprises a bottom plate (100) and a cable sealing structure according to any of claims 1-9.