Composite cable penetration structure and method for an underwater habitat

Abstract

The application discloses a composite cable cabin-penetrating structure and method for an underwater sealed cabin. An inner insert is connected with an end cover of the sealed cabin through a threaded pair, position locking is realized through a locking nut, and axial sealing is realized through a sealing ring. After being branched, the composite cable penetrates through the inner insert screen hole into the inside of the sealed cabin, and the screen hole sides realize solidified water tightness through vulcanized rubber, so that reliable sealing effect is realized in a small structure form. After the composite cable and the end cover of the sealed cabin form a unified whole, a device mounting plate and a tail end support frame are installed, are loaded into a sealed cabin shell, and the installation of the sealed cabin is completed through a sealed cabin bolt and nut combination. The application adopts a wire routing mode in which the composite cable directly penetrates into the sealed cabin, avoids the problem that the signal transmission capacity is reduced due to the wire routing mode in which the cable is disconnected and switched, and realizes normal work under the condition of underwater 100 meters through the cooperation of the inner insert and the vulcanized rubber, so that the cabin-penetrating structure has good pressure resistance and water tightness.

Description

Technical Field

[0001] The present invention relates to the field of underwater detection systems, and in particular to a composite cable threading structure and method for an underwater sealed cabin. Background Art

[0002] As a widely used hardware installation component in underwater detection systems, the underwater sealed cabin must have high watertightness for cable routing, and the cabin structure must be able to withstand underwater pressure.

[0003] In the prior art:

[0004] For example, the invention patent application with application number 201811423359.4 and titled “A device and method for corrosion-resistant sealing of underwater through-cabin electrical connections”, and the utility model application with application number 202021812799.1 and titled “A long through-cabin type grid-electric hybrid underwater sealed adapter socket”, both use sockets and pins for wiring and connection, which will objectively lead to a certain decrease in signal transmission capability.

[0005] For example, the invention patent application with application number 201710775330.1 and titled “An underwater cable penetration component and water-stop sealing method”, and the invention patent with application number 201410023249.4 and titled “Underwater thruster sealed cabin penetration cable connector”, both simply use vulcanized rubber to solidify the cables in the channel, which poses a great risk in terms of underwater pressure bearing. Summary of the Invention

[0006] In response to the above problems, the purpose of the present invention is to provide a composite cable penetration structure and method for an underwater sealed cabin, which is simple to operate and has good reliability, and avoids the problem of decreased signal transmission capacity due to cable disconnection and switching. At the same time, through relevant design, it is ensured that the penetration structure has good pressure bearing and watertightness.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] According to the first aspect of the present invention, the present invention provides a composite cable through-cabin structure for an underwater sealed cabin, comprising a sealed cabin end cover, an insert, a locking nut, a vulcanization box, a locking screw, an external vulcanization layer, an internal vulcanization layer, a beam-splitting composite cable, and an axial sealing ring. The sealed cabin end cover is provided with an internal thread section in the middle for cooperating with the insert, and an inner and outer vulcanization groove is provided on the end face for subsequent perfusion of the external vulcanization layer, and two vulcanization box locking threaded holes are provided for locking the vulcanization box; the end of the insert is provided with a Four installation grooves are provided to operate the embedded parts to enter the sealed cabin end cover, a wire screen hole is provided in the middle and through holes are provided on both sides, and the outer side is an external thread section for threaded cooperation with the internal thread section of the sealed cabin end cover; the vulcanization box is provided with a total of four types of holes, namely cable holes, vulcanization holes, air outlet holes, and screw holes, among which the cable holes are used to pass the split composite cable, the vulcanization holes are used to inject vulcanized glue, the air outlet holes are used to escape air during glue injection, and the screw holes are used to support the vulcanization box to be installed on the end face of the sealed cabin end cover.

[0009] Furthermore, the polyurethane jacket of the split composite cable is stripped off to perform cable splitting, and the cable is inserted into the inner part and enters the inner side of the sealed cabin end cover through the wire sieve hole.

[0010] Furthermore, the insert is installed in the sealed cabin end cover through a threaded connection, and the insert enters the sealed cabin end cover by rotating through the installation groove. After extending to the inside of the sealed cabin end cover, the position is locked by a locking nut, and the end face is axially sealed with the sealed cabin end cover through an axial sealing ring.

[0011] Furthermore, the vulcanization box is locked on the sealed cabin end cover by a locking screw, and the vulcanization box is provided with a cable hole, a vulcanization hole and an air outlet; the cable hole is used for passing the bundled composite cable, the vulcanization hole is used for pouring the vulcanized rubber, and the air outlet is used for discharging gas during vulcanization.

[0012] Furthermore, the end surface of the sealed cabin end cover is provided with two annular grooves for injecting vulcanized rubber into the vulcanizing box.

[0013] Furthermore, the vulcanized rubber enters the vulcanization groove and solidifies to form a vulcanized layer, thereby effectively ensuring the watertight effect of the outer side surface of the end cover.

[0014] According to the second aspect of the present invention, the present invention provides an underwater sealed cabin comprising the composite cable passage structure, characterized in that it also includes a device mounting plate, a tail end support frame, a bracket thread combination, a sealed cabin shell, a radial sealing ring and a sealed cabin bolt and nut combination; the sealed cabin end cover is provided with two mounting grooves for installing the device mounting plate, two sealing grooves are provided for placing radial sealing rings, and 6 mounting through holes are provided for the sealing cabin bolt and nut combination to pass through.

[0015] Furthermore, the device mounting plate is locked with the tail end support frame through four sets of bracket thread combination and inserted into the mounting slot of the sealed cabin end cover. The device mounting plate is installed with a board card, which is connected to the beam splitting cable of the beam splitting composite cable.

[0016] Furthermore, after the device mounting plate is inserted into the sealed cabin end cover, it forms a unified whole with the cabin penetration structure. After placing a radial sealing ring in each of the two sealing grooves, it is inserted into the sealed cabin shell and the sealed cabin installation is completed by assembling six sets of sealed cabin bolts and nuts.

[0017] According to a third aspect of the present invention, the present invention provides a method for threading a composite cable through an underwater sealed cabin, the method comprising the following steps:

[0018] Step 1: The bundled composite cable passes through the cable hole of the vulcanization box and is inserted into the channel of the inner insert. The cable bundle passes through the wire mesh until it reaches the wire mesh hole at the stripping point and cannot be inserted further; vulcanized rubber is poured into the inner channel of the inner insert to form an internal vulcanized layer;

[0019] Step 2: After the internal vulcanized layer solidifies, insert the axial sealing ring onto the bottom surface of the end of the insert. The insert is then fitted into the end cover of the sealed compartment by fitting the external thread section with the internal thread section of the end cover and then installed into the end cover through the installation groove. The insert passes through the end cover of the sealed compartment and enters the inner side of the end cover. The position of the insert is locked by fitting the locking nut with the external thread section.

[0020] Step 3: Place the vulcanization box on the end face of the sealed cabin end cover, and use two locking screws to pass through the screw holes of the vulcanization box and match them with the vulcanization box locking screw holes on the sealed cabin end cover to install the vulcanization box; inject the vulcanized rubber through the vulcanization hole at a suitable and steady speed, and the vulcanized rubber enters the two circles of vulcanization grooves set on the end face of the sealed cabin end cover to enhance the vulcanization sealing, and discharge the gas in the box through the air outlet; after the vulcanized rubber is cured, an external vulcanization layer is formed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention adopts a wiring method of continuous composite cable through the cabin, which avoids the problem of decreased signal transmission capacity due to cable disconnection and switching, ensures effective connection between the inside and outside of the sealed cabin, and guarantees effective transmission of signals and power.

[0023] 2. The present invention uses a combination of embedded sieve holes and vulcanized rubber to provide watertightness through the cabin while ensuring the underwater pressure-bearing capacity of the cabin penetration structure, thereby avoiding collapse and leakage at the cabin penetration position due to underwater high pressure.

[0024] 3. The tank penetration method and its structural design used in the present invention are simple and easy to operate. They can be applied to scenarios where watertight connectors are not applicable. After the vulcanization operation is completed, the tank penetration structure is solidified into one piece to ensure the stability of the watertight effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more completely and better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a three-dimensional exploded view of an end cover portion of a composite cable passage structure for an underwater sealed cabin according to the present invention;

[0027] Figure 2 This is a schematic diagram of the outer appearance of a sealed cabin end cover of a composite cable passage structure for an underwater sealed cabin according to the present invention;

[0028] Figure 3 This is a schematic diagram of the inner appearance of a sealed cabin end cover of a composite cable-penetrating structure for an underwater sealed cabin according to the present invention;

[0029] Figure 4 This is a schematic diagram of the appearance of an embedded component of a composite cable passage structure for an underwater sealed cabin according to the present invention;

[0030] Figure 5 This is a schematic diagram of the appearance of a vulcanization box of a composite cable passage structure for an underwater sealed cabin according to the present invention;

[0031] Figure 6 It is a two-dimensional cross-sectional view of an underwater sealed cabin including a composite cable-penetrating cabin structure according to the present invention;

[0032] Figure 7 This is a three-dimensional exploded view of the body of an underwater sealed cabin including a composite cable-penetrating cabin structure according to the present invention;

[0033] In the figure, the sealed cabin end cover 1, the internal thread section 101, the vulcanization groove 102, the vulcanization box locking threaded hole 103, the installation groove 104, the sealing groove 105, the installation through hole 106, the embedded part 2, the installation groove 201, the wire sieve hole 202, the external thread section 203, the locking nut 3, the vulcanization box 4, the cable hole 401, the vulcanization hole 402, the air outlet 403, the screw through hole 404, the locking screw 5, the external vulcanization layer 6, the internal vulcanization layer 7, the beam splitting composite cable 8, the axial sealing ring 9, the device mounting plate 10, the tail end support frame 11, the bracket thread combination 12, the sealed cabin shell 13, the radial sealing ring 14, and the sealed cabin bolt and nut combination 15. DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0035] The terms used in this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The singular forms "a," "the," and "the" used in this invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms "first," "second," "third," etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. Depending on the context, the term "if" as used herein may be interpreted as "when," "when," or "in response to determining."

[0037] All features disclosed in the present invention, or all steps in the methods or processes disclosed, except for mutually exclusive features and / or steps, may be combined in any manner.

[0038] Any feature disclosed in the present invention, unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0039] like Figures 1 to 5 As shown, the first aspect of an embodiment of the present invention provides a composite cable passage structure for an underwater sealed cabin, including a sealed cabin end cover 1, an insert 2, a locking nut 3, a vulcanization box 4, a locking screw 5, an external vulcanization layer 6, an internal vulcanization layer 7, a beam-splitting composite cable 8, and an axial sealing ring 9.

[0040] The sealed hatch end cap 1 features an internally threaded section 101 in the center for mating with the insert 2. The end face is provided with two inner and outer curing grooves 102 for subsequent injection of the external curing layer 6. Two curing cartridge locking threaded holes 103 are provided for locking the curing cartridge 4. Four mounting grooves 201 are provided at the end of the insert 2 for inserting it into the sealed hatch end cap 1. A wire mesh hole 202 is provided in the center, flanked by through-holes. An externally threaded section 203 is provided on the outer side for threaded engagement with the internally threaded section 101 of the sealed hatch end cap 1. The curing cartridge 4 features four types of holes: a cable hole 401, a curing hole 402, an air vent 403, and a screw hole 404. The cable hole 401 is for passing a composite cable, the curing hole 402 is for injecting curing glue, the air vent 403 allows air to escape during injection, and the screw hole 404 supports the curing cartridge 4 in its installation on the end face of the sealed hatch end cap 1.

[0041] The insert 2 is installed in the sealed cabin end cover 1 through a threaded connection. The insert 2 enters the sealed cabin end cover 1 by rotating through the installation groove 201. After extending to the inside of the sealed cabin end cover 1, it is locked in position by the locking nut 3. The end face is axially sealed with the sealed cabin end cover 1 through the sealing ring 9.

[0042] The splitting composite cable 8 needs to have its polyurethane jacket stripped off for cable splitting, be inserted into the inner part 2 and pass through the wire sieve hole 202 to enter the inner side of the sealed cabin end cover 1. Different cable combinations pass through different sieve holes respectively until they reach the sieve hole at the splitting position. After completing the cabin penetration, the inside and outside need to be vulcanized to ensure fixation and watertightness.

[0043] In order to ensure pressure bearing and water tightness, it is necessary to inject vulcanized rubber inside and outside the inner insert 2, where the internal vulcanized layer 7 is located in the cavity of the inner insert 2 facing the cabin to solidify the splitting cable; the external vulcanized layer 6 is used as a container through the vulcanizing box 4 to complete the solidification of the splitting composite cable 8 and the inner insert 2.

[0044] The vulcanization box 4 is locked on the sealed cabin end cover 1 by a locking screw 5. The vulcanization box 4 is provided with a cable hole 401, a vulcanization hole 402 and an air outlet 403; the cable hole 401 is used for passing the bundled composite cable 8, the vulcanization hole 402 is used for pouring the vulcanized rubber, and the air outlet 403 is used for discharging the gas during vulcanization.

[0045] The end face of the sealed cabin end cover 1 is provided with two annular grooves. When vulcanized rubber is injected into the vulcanizing box 4, the vulcanized rubber enters the vulcanizing groove 102 and solidifies to form a vulcanized layer, which effectively ensures the watertight effect of the outer side of the end cover.

[0046] The composite cable through-cabin structure utilizes fewer structural forms, increases the contact area between the vulcanized rubber and the bundled composite cable 8 and the structural parts, enhances the curing effect and ensures watertightness, and can withstand high pressure underwater to achieve isolation between the internal components of the sealed cabin and the external seawater.

[0047] like Figures 6 and 7 As shown, the second aspect of an embodiment of the present invention provides an underwater sealed cabin including a composite cable passage structure, and also includes a device mounting plate 10, a tail end support frame 11, a bracket thread combination 12, a sealed cabin shell 13, a radial sealing ring 14, and a sealed cabin bolt and nut combination 15.

[0048] The sealed cabin end cover 1 is provided with two mounting grooves 104 for mounting the device mounting plate 10 , two sealing grooves 105 for placing radial sealing rings 14 , and six mounting through holes 106 for the sealed cabin bolt and nut assembly 15 to pass through.

[0049] The two device mounting plates 10 are locked with the tail end support frame 11 through four sets of bracket thread combinations 12 and inserted into the mounting slots 104 of the sealed cabin end cover 1. The device mounting plates 10 are installed with various boards and cards, which can be connected to the splitting cables of the splitting composite cable 8.

[0050] After the device mounting plate 10 is inserted into the sealed cabin end cover 1, it forms a unified whole with the cabin structure. After placing a radial sealing ring 14 in each of the two sealing grooves 105, it is inserted into the sealed cabin shell 13 and the sealed cabin installation is completed through six sets of sealed cabin bolt and nut assemblies 15.

[0051] A third aspect of an embodiment of the present invention provides a method for threading a composite cable through an underwater sealed cabin, comprising the following steps:

[0052] Step 1: After removing the polyurethane jacket from one end of the split composite cable 8, the cables are then split. The jacket and cable sheath in the vulcanization area are polished to enhance vulcanization adhesion. The split composite cable 8 passes through the cable hole 401 of the vulcanization box 4 and into the channel of the insert 2. The cables are then passed through the wire mesh 202 until the stripping point reaches the wire mesh 202 where they cannot be inserted further. Vulcanized rubber is poured into the inner channel of the insert to form an internal vulcanization layer 7.

[0053] Step 2: After the internal vulcanized layer 7 is cured, the axial sealing ring 9 is inserted into the bottom surface of the end of the inner insert 2, and the inner insert 2 is matched with the internal thread section 101 of the sealed cabin end cover 1 through the external thread section 203 and the internal thread section 101 of the sealed cabin end cover 1 and installed into the sealed cabin end cover 1 through the installation groove 201; the inner insert 2 passes through the sealed cabin end cover 1 and enters the inner side of the end cover, and the position of the inner insert 2 is locked by the locking nut 3 and the external thread section 203.

[0054] Step 3: Place the vulcanization box 2 on the end face of the sealed cabin end cover 1, and use two locking screws 5 to pass through the screw through holes 404 of the vulcanization box 4 and cooperate with the vulcanization box locking screw holes 103 on the sealed cabin end cover 1 to install the vulcanization box 4; inject vulcanized rubber through the vulcanization hole 402 at a suitable and steady speed, and the vulcanized rubber enters the two circles of vulcanization grooves 102 set on the end face of the sealed cabin end cover 1 to enhance the vulcanization sealing performance, and discharges the gas in the box through the air outlet 403; after the vulcanized rubber is cured, an external vulcanization layer 6 is formed.

[0055] The composite cable cabin structure of the present invention is constructed into an underwater sealed cabin by the following steps:

[0056] Step 1: Install the boards required for the sealed cabin onto the two device mounting plates 10, and connect the splitting cables of the splitting composite cable 8 passing through the cabin to the boards. After the device mounting plate 10 and the tail end support frame 11 are locked through the four sets of bracket thread combinations 12, the device mounting plate 10 is inserted into the mounting groove 104 on the inner side of the sealed cabin end cover 1 to form a unified whole.

[0057] Step 2: Insert the two radial sealing rings 14 into the two sealing grooves 105 of the sealed cabin end cover 1, insert the sealed cabin end cover 1 and the support frame into the sealed cabin shell 13 as a whole, and complete the installation of the sealed cabin through six sets of sealed cabin bolts and nuts 15, and finally complete the module realization of the entire composite cable through the cabin structure.

[0058] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the contents disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed in this application.

[0059] It will be understood that the present application is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A composite cable passage structure for an underwater sealed cabin, characterized by: The invention comprises a sealed cabin end cover (1), an insert (2), a locking nut (3), a vulcanization box (4), a locking screw (5), an external vulcanization layer (6), an internal vulcanization layer (7), a beam-splitting composite cable (8), and an axial sealing ring (9). The sealed cabin end cover (1) is provided with an internal thread section (101) in the middle thereof for cooperating with the insert (2), an inner and outer vulcanization groove (102) is provided on the end face thereof for subsequent pouring of the external vulcanization layer (6), and two vulcanization box locking threaded holes (103) are provided for locking the vulcanization box (4); and four mounting grooves (201) are provided at the end of the insert (2) for operating the insert (2) to enter the sealed cabin end cover. (1), a wire mesh hole (202) is provided in the middle and through holes are provided on both sides, and an external thread section (203) is provided on the outside for threaded engagement with the internal thread section (101) of the sealed cabin end cover (1); the vulcanization box (4) is provided with four types of holes, namely, a cable hole (401), a vulcanization hole (402), an air outlet hole (403), and a screw hole (404), wherein the cable hole (401) is used to pass the bundled composite cable (8), the vulcanization hole (402) is used to inject vulcanized glue, the air outlet hole (403) is used to allow air to escape during injection, and the screw hole (404) is used to support the vulcanization box (4) to be installed on the end face of the sealed cabin end cover (1); The polyurethane outer jacket of the split composite cable (8) is stripped off to perform cable splitting, and the cable is inserted into the inner insert (2) and enters the inner side of the sealed cabin end cover (1) through the wire mesh (202).

2. The composite cable passage structure for an underwater sealed cabin according to claim 1, characterized in that: The insert (2) is installed in the sealed cabin end cover (1) through a threaded connection, and the insert (2) enters the sealed cabin end cover (1) by rotating through the installation groove (201). After extending to the inside of the sealed cabin end cover (1), the position is locked by the locking nut (3), and the end face is axially sealed with the sealed cabin end cover (1) through the axial sealing ring (9).

3. The composite cable passage structure for an underwater sealed cabin according to claim 1, characterized in that: The vulcanization box (4) is locked on the sealed cabin end cover (1) by a locking screw (5). The vulcanization box (4) is provided with a cable hole (401), a vulcanization hole (402) and an air outlet (403); the cable hole (401) is used for passing the bundled composite cable (8), the vulcanization hole (402) is used for pouring the vulcanized rubber, and the air outlet (403) is used for discharging gas during vulcanization.

4. The composite cable passage structure for an underwater sealed cabin according to claim 1, characterized in that: The end surface of the sealed cabin end cover (1) is provided with two annular grooves for injecting vulcanized rubber into the vulcanizing box (4).

5. The composite cable passage structure for an underwater sealed cabin according to claim 4, characterized in that: The vulcanized rubber enters the vulcanization groove (102) and solidifies to form a vulcanized layer, effectively ensuring the watertight effect of the outer side surface of the end cover.

6. An underwater sealed cabin comprising the composite cable passage structure according to any one of claims 1 to 5, characterized in that: It also includes a device mounting plate (10), a tail end support frame (11), a bracket thread assembly (12), a sealed cabin shell (13), a radial sealing ring (14) and a sealed cabin bolt and nut assembly (15); the sealed cabin end cover (1) is provided with two mounting grooves (104) for mounting the device mounting plate (10), two sealing grooves (105) for placing the radial sealing ring (14), and six mounting holes (106) for the sealed cabin bolt and nut assembly (15) to pass through.

7. The underwater sealed cabin comprising a composite cable passage structure according to claim 6, characterized in that: The device mounting plate (10) is locked with the tail end support frame (11) through four sets of bracket thread combinations (12) and inserted into the mounting slot (104) of the sealed cabin end cover (1). The device mounting plate (10) is installed with a board card, and the board card is connected to the beam splitting cable of the beam splitting composite cable (8).

8. The underwater sealed cabin comprising a composite cable passage structure according to claim 6, characterized in that: After the device mounting plate (10) is inserted into the sealed cabin end cover (1), it forms a unified whole with the through-cabin structure. After a radial sealing ring (14) is placed in each of the two sealing grooves (105), it is inserted into the sealed cabin shell (13) and the sealed cabin installation is completed through six sets of sealed cabin bolt and nut assemblies (15).

9. A composite cable passage method for a composite cable passage structure according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: The bundled composite cable (8) passes through the cable hole (401) of the vulcanizing box (4) and is inserted into the channel of the inner insert (2). The cable bundle passes through the wire mesh hole (202) until the stripping point reaches the wire mesh hole (202) where it cannot be inserted further; vulcanized rubber is poured into the inner channel of the inner insert to form an internal vulcanized layer (7); Step 2: After the internal vulcanized layer (7) is solidified, the axial sealing ring (9) is inserted into the bottom surface of the end of the inner insert (2), and the inner insert (2) is matched with the internal thread section (101) of the sealed cabin end cover (1) and installed in the sealed cabin end cover by relying on the installation groove (201); the inner insert (2) passes through the sealed cabin end cover (1) and enters the inner side of the end cover, and the position of the inner insert (2) is locked by the locking nut (3) and the external thread section (203); Step 3: Place the vulcanization box on the end face of the sealed cabin end cover (1), and use two locking screws (5) to pass through the screw holes (404) of the vulcanization box (4) and cooperate with the vulcanization box locking screw holes (103) on the sealed cabin end cover (1) to achieve the installation of the vulcanization box (4); inject vulcanized rubber through the vulcanization hole (402) at a suitable and steady speed, and the vulcanized rubber enters the two circles of vulcanization grooves (102) set on the end face of the sealed cabin end cover (1) to enhance the vulcanization sealing performance, and discharge the gas in the box through the air outlet (403); After the vulcanized rubber is cured, an outer vulcanized layer (6) is formed.

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