Airtight cabin cable wall-passing hole sealing transformation method

Abstract

The invention relates to a sealing transformation method for a cable wall-passing hole of an airtight cabin, belongs to the technical field of cable wall-passing, and aims to solve the problems of poor sealing effect and inconvenience in disassembly of an existing sealing measure. According to the airtight cabin cable wall-passing hole sealing transformation method, a cable wall-passing sealing structure is adopted for sealing transformation, and the cable wall-passing sealing structure comprises a hoop structure, a cable sealing structure and a sealing block; the cable sealing structure coats the outer part of the wall-passing cable; the sealing block is arranged outside the cable sealing structure and is in sealing contact with the cable sealing structure; the hoop structure is arranged outside the sealing blocks in a sleeving manner and can integrate the plurality of sealing blocks and the plurality of cable sealing structures into a whole; the hoop structure is connected with the airtight bulkhead in a sealed mode. According to the invention, reliable sealing and rapid disassembly and assembly of the wall-passing cable are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of wall-penetrating cables, and in particular to a sealing and modification method for a wall-penetrating hole of a cable in an airtight cabin. Background Art

[0002] During the use of chassis-type mobile platforms, in order to meet the requirements of nuclear, biological and chemical defense, after the three-defense device is turned on, the cabin must reach a certain overpressure value, and the cabin itself must have good sealing performance. In addition, the sealing performance of the cabin should always meet the use requirements depending on environmental factors and transportation conditions. There are a large number of cables passing through the wall on chassis-type mobile platforms, and cable holes are set at the wall. The sealing of the cable wall has a great impact on the sealing performance of the cabin. At present, the common treatment methods for cable wall passages are to fill and seal with materials such as silicone rubber, or to use tin foil to cover and bond the cables and wall holes.

[0003] The limitations of current sealing methods are as follows:

[0004] 1. Most of the cables passing through the wall are pre-buried under the bottom plate of the mobile platform, which makes them difficult to disassemble. The existing sealing modification work needs to take into account the fact that the cables cannot be disassembled;

[0005] 2. Silicone rubber and other materials need a certain amount of time to solidify. During the solidification period, silicone rubber has a certain fluidity. It is necessary to set up a container structure to ensure that the silicone rubber gathers around the cable to ensure the sealing effect;

[0006] 3. Silicone rubber and other materials have a certain degree of flexibility after curing. Long-term impact, vibration, high and low temperature, and hot and humid working conditions may cause cracks at the interface between silicone rubber and cables, thus affecting the air tightness of the cabin;

[0007] 4. The tin foil wrapping of cables passing through the wall is a temporary solution. Mechanical environment and other factors can directly lead to leakage points at the wrapping, affecting the air tightness of the cabin;

[0008] 5. After using silicone rubber or tin foil to seal the cable wall structure, when the cable needs to be removed, there will be silicone rubber or tin foil residue on the cable, affecting its secondary use.

[0009] Therefore, it is necessary to provide a new sealing construction method for cables passing through walls to achieve a good sealing effect. Summary of the invention

[0010] In view of the above analysis, the present invention aims to provide a sealing modification method for cable wall holes in an airtight cabin, so as to solve the problems of poor sealing effect and inconvenient disassembly of existing sealing measures.

[0011] The purpose of the present invention is mainly achieved through the following technical solutions:

[0012] A cable wall sealing structure comprises: a clamp structure, a cable sealing structure and a sealing block; the cable sealing structure is coated on the outside of the wall-passing cable; the sealing block is arranged on the outside of the cable sealing structure and is in sealing contact; the clamp structure is sleeved on the outside of the sealing block and can aggregate multiple sealing blocks and multiple cable sealing structures into one; the clamp structure is sealed and connected to the airtight bulkhead.

[0013] Furthermore, the clamp structure includes two sealing blocks clamping half rings.

[0014] Furthermore, the clamp structure is arranged on a side of the airtight bulkhead and is fixedly connected to the airtight bulkhead via a first bolt.

[0015] Furthermore, it also includes a sealing gasket; the sealing gasket is arranged between the airtight bulkhead and the clamp structure to seal the two.

[0016] Furthermore, the cable sealing structure comprises two symmetrically arranged cable sealing half rings, and the two cable sealing half rings are connected into a ring shape by fastening screws.

[0017] Furthermore, a first sealing ring is arranged inside the circular ring of the cable sealing structure; the first sealing ring is in sealing contact with the through-wall cable.

[0018] Furthermore, a second sealing ring is arranged outside the circular ring of the cable sealing structure; and the second sealing ring is in contact with the sealing block.

[0019] Furthermore, sealing connection parts are provided at both ends of the cable sealing half ring, and fastening screws are installed on the sealing connection parts.

[0020] Furthermore, a plurality of the first sealing rings are arranged side by side on the inner side of the cable sealing structure; and one or more second sealing rings are arranged side by side on the outer side of the cable sealing structure.

[0021] A method for sealing a cable wall hole in an airtight cabin, using the cable wall sealing structure mentioned above for sealing; the sealing method comprises the following steps:

[0022] Step S1: a cable sealing structure is sheathed on the outside of the cable passing through the wall;

[0023] Step S2: embedding the cable sealing structure into the sealing block;

[0024] Step S3: a clamp structure is provided on the outside of the sealing block, and the clamp structure is fixedly installed on the airtight bulkhead.

[0025] The technical solution of the present invention can achieve at least one of the following effects:

[0026] 1. The sealing modification method of the cable wall hole in the airtight cabin of the present invention avoids disassembly of the cable. The cable sealing structure is nested in the rubber sealing structure composed of the sealing block, so that the cables are distributed at specific positions of the clamp structure, which is convenient for sealing different cables separately.

[0027] 2. The sealing modification method of the cable wall hole in the airtight cabin of the present invention can tighten the gap between the sealing block and the cable sealing structure through the clamp structure to ensure the sealing of the structure. Since a special sealing structure is set at the potential leakage points of the overall structure, this modification method improves the environmental adaptability and reliability of the cable wall hole.

[0028] 3. The sealing modification method of the cable wall hole in the airtight cabin of the present invention has an overall structure that is fixed to the cabin wall in the form of screw connection, which is convenient for disassembly and assembly, and the cable characteristics remain unchanged after disassembly.

[0029] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0031] Figure 1 It is a schematic diagram of the sealing structure at the wall passing point of the cable in the airtight cabin of the present invention;

[0032] Figure 2 for Figure 1 Connection diagram of the sealing structure and bulkhead;

[0033] Figure 3 It is a schematic diagram of the hoop structure of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the sealing block of the present invention;

[0035] Figure 5 Schematic diagram of the cable sealing structure of a single cable;

[0036] Figure 6 A cross-sectional view of a cable sealing structure.

[0037] Reference numerals:

[0038] 1-airtight bulkhead; 2-wall cable; 3-hoop structure; 4-sealing gasket; 5-cable sealing structure; 6-sealing block; 101-first bolt; 102-first nut; 103-first flat gasket; 104-first spring gasket; 301-second bolt; 302-sealing block clamping half ring; 303-second nut; 501-cable sealing half ring; 502-fastening screw; 503-first sealing ring; 504-second sealing ring. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0040] Example 1

[0041] A specific embodiment of the present invention discloses a cable wall sealing structure, such as Figure 1 , Figure 2 As shown, it includes: a clamp structure 3, a cable sealing structure 5 and a sealing block 6; the cable sealing structure 5 is covered on the outside of the wall cable 2; the sealing block 6 is arranged on the outside of the cable sealing structure 5 and is in sealing contact; the clamp structure 3 is sleeved on the outside of the sealing block 6, and can aggregate multiple sealing blocks 6 and multiple cable sealing structures 5 into one; the clamp structure 3 is sealed and connected to the airtight bulkhead 1.

[0042] Furthermore, the hoop structure 3 is arranged on the side of the airtight bulkhead 1 and is fixedly connected to the airtight bulkhead 1 by a first bolt 101 .

[0043] Specifically, the first bolt 101 passes through the hoop structure 3 and the airtight bulkhead 1 in sequence and is screwed to the first nut 102 through threads. Figure 2 As shown, a first flat washer 103 and a first spring washer 104 are arranged between the first nut 102 and the airtight bulkhead 1 .

[0044] like Figure 3 As shown, the hoop structure 3 is composed of two sealing block clamping half rings 302 of the same structure, and the sealing block clamping half ring 302 is a semicircular ring structure.

[0045] Furthermore, the two sealing blocks are clamped by the half rings 302 and connected as a whole by the second bolts 301 .

[0046] Furthermore, the sealing block clamping half ring 302 is provided with a bolt mounting hole, and the second bolt 301 passes through the bolt mounting holes of the two sealing block clamping half rings 302 and is connected with the second nut 303 .

[0047] Furthermore, a second flat washer and a second spring washer 305 are provided between the second nut 303 and the sealing block clamping half ring 302; Figure 2 As shown, the second flat washer and the second spring washer 305 are sleeved on the second bolt 301 .

[0048] Furthermore, in order to ensure the sealing effect between the clamp structure 3 and the airtight bulkhead 4 , the cable wall sealing structure also includes a sealing gasket 4 .

[0049] Specifically, the sealing gasket 4 is arranged between the airtight bulkhead 1 and the hoop structure 3 to seal the two. Furthermore, an elastic sealing member is also arranged at the contact surface position of the two sealing blocks holding the semi-ring 302. Preferably, the sealing gasket 4 and the elastic sealing member are both made of rubber.

[0050] Furthermore, if Figure 1 , Figure 2 As shown, the cable sealing structure 5 of the plurality of through-wall cables 2 is arranged inside the clamp structure 3, and there is a gap between the two; in order to fill the gap between the cable sealing structure 5 and the clamp structure 3, a sealing block 6 is provided.

[0051] like Figure 2 , Figure 4 As shown, the sealing block 6 is provided with multiple pieces, and the multiple sealing blocks 6 are assembled to form a rubber column with holes. The rubber column serves as a sealing inner core, has multiple accommodating notches for accommodating the cable sealing structure 5, and the outer side surface of the rubber column contacts the inner wall surface of the clamp structure 3.

[0052] Specifically, Figure 2 As shown, the through-wall cable 2 is distributed on the sealing block 6 through the cable sealing structure 5. The sealing block 6 is a quarter of a rubber column, and four sealing blocks 6 form a complete rubber column, i.e., a rubber column. The hoop structure 3 is sleeved on the outside of the rubber column, and the hoop structure 3 compresses multiple sealing blocks 6 into a complete rubber column.

[0053] Furthermore, if Figure 2 As shown, a plurality of wall-penetrating cables 2 and a cable sealing structure 5 are symmetrically arranged in a circle within the clamp structure 3; correspondingly, a plurality of sealing blocks 6 have the same structural shape.

[0054] Preferably, a plurality of through-wall cables 2 are arranged in a "cross shape"; the sealing block 6 is a fan-shaped structure with an angle of 90°; and accommodating grooves that engage with the cable sealing structure 5 are provided on two right-angled flat sides of the sealing block 6.

[0055] Specifically, Figure 4 As shown, a side surface of the sealing block 6 is provided with an accommodating notch in contact with the outer surface of the cable sealing structure 5 , and the cable sealing structure 5 can be inserted into the accommodating notch for extrusion contact to achieve sealing between the two.

[0056] Specifically, a groove is set on the surface of the accommodating slot of the rubber column. After the two sealing blocks hold the half ring 302 to press the sealing block 6, the outer cylindrical surface of the second sealing ring 504 is squeezed and contacted with the inner cylindrical surface of the groove; that is, the second sealing ring 504 is squeezed and contacted with the accommodating slot in the radial direction to enhance the sealing effect; the width of the groove is greater than the width of the second sealing ring 504, so that the cable sealing structure 5 has a certain axial movement space in the sealing block 6.

[0057] like Figure 5 As shown, in a specific embodiment of the present invention, the cable sealing structure 5 includes two symmetrically arranged cable sealing half rings 501 , and the two cable sealing half rings 501 are spliced ​​into a ring shape by fastening screws 502 .

[0058] Specifically, an elastic seal is also provided between the two cable sealing half rings 501 of the cable sealing structure 5 .

[0059] Furthermore, if Figure 6 As shown, a first sealing ring 503 is disposed inside the circular ring of the cable sealing structure 5; the first sealing ring 503 is in sealing contact with the through-wall cable 2. A second sealing ring 504 is disposed outside the circular ring of the cable sealing structure 5; the second sealing ring 504 is in contact with the sealing block 6.

[0060] Specifically, the inner wall and the outer wall of the cable sealing half ring 501 are respectively provided with a first sealing groove and a second sealing groove, and the first sealing groove and the second sealing groove are respectively provided with a first sealing ring 503 and a second sealing ring 504; and the first sealing ring 503 directly contacts the through-wall cable 2, and the second sealing ring 504 contacts the sealing block 6. In order to cooperate with the cable sealing half ring 501 of the cable sealing structure 5, the first sealing ring 503 and the second sealing ring 504 are both composed of two half-ring sealing rings symmetrically spliced.

[0061] Furthermore, sealing connection parts are provided at both ends of the cable sealing half ring 501, and fastening screws 502 are installed on the sealing connection parts. After the fastening screws 502 are fastened, the through-wall cable 2 and the first sealing ring 503 of the cable sealing structure 5 are interference-fitted, and the sealing block 6 and the second sealing ring 504 are interference-fitted, thereby enhancing the sealing effect.

[0062] Furthermore, a plurality of first sealing rings 503 are arranged side by side on the inner side of the cable sealing structure 5 ; and a plurality of second sealing rings 504 are arranged side by side on the outer side of the cable sealing structure 5 .

[0063] Example 2

[0064] In a specific embodiment of the present invention, the cable wall sealing structure in Embodiment 1 is improved.

[0065] Specifically, the hoop structure 3 is a semi-enclosed cover structure.

[0066] Specifically, the clamp structure 3 further comprises a sealing end cover, and the sealing end cover is fixed as a whole with the sealing block clamping half ring 302. The sealing end cover and the sealing block clamping half ring 302 are connected by bolts.

[0067] Furthermore, the sealing end cap is composed of a plurality of end cap panels, the shape of which is the same as that of the sealing block 6. The edge of the sealing end cap is provided with an end cap connection portion connected to the sealing block holding half ring 302, and the end cap connection portion is provided with a threaded hole.

[0068] Furthermore, a cable through hole is provided on the airtight bulkhead; the diameter of the clamp structure 3 is larger than the diameter of the cable through hole, and the diameter of the rubber column composed of a plurality of sealing blocks 6 is also larger than the diameter of the cable through hole.

[0069] Furthermore, the front end face of the rubber column composed of multiple sealing blocks 6 is in contact with the surface of the airtight bulkhead 1, and the rear end face of the rubber column is in sealing contact with the inner side of the sealing end cover of the clamp structure 3. The multiple sealing blocks 6 are in sealing contact with each other through the tightening effect of the clamp structure 3; the outer cylindrical surface of the rubber column composed of multiple sealing blocks 6 is in sealing contact with the cylindrical side surface of the clamp structure 3, and the side surface of one end of the rubber column is in sealing contact with the plane of the sealing end cover, so as to achieve a better sealing effect.

[0070] This embodiment forms a multiple sealing structure through the sealing between the cable sealing structure 5 and the wall-passing cable 2, the sealing between the sealing block 6 and the cable sealing structure 5, the sealing between the sealing blocks 6 and the sealing blocks 6, the sealing between the sealing block 6 and the clamp structure 3, and the sealing between the clamp structure 3 and the airtight bulkhead 1, thereby ensuring the sealing effect at the cable wall-passing point and enabling the simultaneous installation of multiple wall-passing cables 2.

[0071] The cable wall-penetrating sealing structure of the present embodiment enables a plurality of the wall-penetrating cables 2 to pass through the cable through-holes of the airtight bulkhead 1 , and the cable sealing structure 5 and the sealing block 6 are covered inside the clamp structure 3 .

[0072] Furthermore, in this embodiment, the cable sealing structure 5 is a circular ring structure; a second sealing ring 504 is provided on the outer side of the cable sealing structure 5 to contact the sealing block 6 .

[0073] Furthermore, a plurality of third sealing rings are arranged side by side on the inner side of the cable sealing structure 5, and the third sealing rings are made of rubber. The cross section of the third sealing ring is a right-angle trapezoid. The inner diameter of the third sealing ring is smaller than the outer diameter of the through-wall cable 2; the outer ring of the third sealing ring is a cylindrical surface, and the inner ring is a conical surface. During implementation, the cable sealing structure 5 is sleeved on the outside of the through-wall cable 2, and the inner ring of the third sealing ring is deformed to achieve interference fit with the through-wall cable 2.

[0074] Example 3

[0075] A specific embodiment of the present invention provides a method for sealing a cable through a wall in an airtight cabin, wherein the cable through-wall sealing structure of embodiment 1 is used to seal the cable through-wall of the airtight cabin, and the sealing method comprises the following steps:

[0076] Step S1: a cable sealing structure 5 is sleeved on the outside of the wall-penetrating cable 2;

[0077] Step S2: embedding the cable sealing structure 5 into the sealing block 6;

[0078] Step S3: a clamp structure 3 is provided on the outside of the sealing block 6 , and the clamp structure 3 is fixedly installed on the airtight bulkhead 1 .

[0079] Specifically, the step S1 includes:

[0080] Step S11: Clean the surface of the cable 2 passing through the wall, measure the diameter of the cable 2 passing through the wall, and select a corresponding cable sealing structure 5 according to the diameter;

[0081] Step: 12: Install the first sealing ring 503 and the second sealing ring 504 on the two cable sealing half rings 501;

[0082] Step S13: Use two cable sealing half rings 501 to cover the outer surface of the through-wall cable 2, and fix the two half ring structures together by fastening screws 502 to form a cable sealing structure 5 and fasten it; at this time, the first sealing ring 503 is embedded in the first sealing groove of the cable sealing structure 5; the second sealing ring 504 is embedded in the second sealing groove of the cable sealing structure 5; the first sealing ring 503 is interference fit with the through-wall cable 2.

[0083] Furthermore, the remaining cables are sealed in the manner of step S1, and the clamping positions of the cable sealing structures 5 are consistent.

[0084] The step S2 comprises:

[0085] Step S21: embedding a plurality of cable sealing structures 5 into the receiving notch of the sealing block 6, and embedding the second sealing ring 504 into the groove located on the surface of the receiving notch;

[0086] Step S22 : until the multiple sealing blocks 6 are assembled into a complete rubber column, the multiple cable sealing structures 5 are embedded in the rubber column composed of the multiple sealing blocks 6 .

[0087] The step S3 comprises:

[0088] Step S31: two sealing blocks are tightly enclosed by half rings 302 and are placed outside the rubber column composed of a plurality of sealing blocks 6;

[0089] Step S32: The two sealing block clamping half rings 302 are connected and fixed by the second bolts 301 and the first nuts 303 to form a complete clamping structure 3; at this time, the outer cylindrical surface of the rubber column is in compression contact with the inner cylindrical surface of the clamping structure 3.

[0090] When the clamp structure of Example 2 is used, a sealing end cover is installed on the sealing block clamping half ring 302 so that the end surface of the rubber column contacts the planar inner wall surface of the sealing end cover of the clamp structure 3 .

[0091] Step S33 : a sealing gasket 4 is arranged between the airtight bulkhead 1 and the hoop structure 3 , and the hoop structure 3 is fixedly connected to the airtight bulkhead 1 by means of a first bolt 101 and a first nut 102 .

[0092] Specifically, the installation holes of the sealing block clamping half ring 302 are arranged according to the reserved holes of the airtight bulkhead 1, the sealing gasket 4 is arranged between the sealing block clamping half ring 302 and the airtight bulkhead 1, and the clamp structure 3 is installed on the airtight bulkhead 1 through the first bolt 101 and the first nut 102. At this point, the sealing of the airtight cabin cable passing through the wall is completed.

[0093] Furthermore, an overpressure test is carried out in the cabin to check the sealing effect.

[0094] Compared with the prior art, the technical solution provided by this embodiment has at least one of the following beneficial effects:

[0095] 1. The sealing modification method for cable wall passages in an airtight cabin of the present invention aims at the structure of existing cables and wall passages. Without re-laying the cables, the method adopts a method of adding multiple sealing structures to reduce the probability of leakage points, thereby improving the airtightness of the cabin.

[0096] 2. Compared with the original filling sealant-like materials, the sealing reconstruction method for the cable wall in the cabin of the present invention avoids the process of making the filling space and curing the glue, and the construction speed is faster. The sealing structure adopts the form of overall clamping, and the possibility of the sealing performance decreasing under the conditions of sudden changes in temperature and humidity and vibration and impact is low, and the overall reliability is high.

[0097] 3. After the sealing modification method of the cable wall-passing part in the sealed cabin of the present invention is completed, since the width of the groove in the sealing block 6 is greater than the width of the second sealing ring 504, after loosening the sealing block and holding the half ring 302, the cable sealing structure 5 of the cable 2 passing through the wall can be appropriately axially moved in the rubber column formed by the sealing block 6, which is convenient for fine-tuning the positions of the cable sealing structure 5 and the cable 2 passing through the wall. After the fine-tuning is completed, tighten the sealing block and hold the half ring 302, which will not affect the sealing performance at the wall-passing part.

[0098] 4. After the modification of the sealing modification method for the cable wall in the sealed cabin of the present invention is completed, if the cable needs to be removed, the reverse order of the sealing structure assembly can be adopted to avoid the problem that the cable is difficult to remove after the glue is injected and sealed.

[0099] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A cable wall sealing structure, characterized in that: include: A clamp structure (3), a cable sealing structure (5) and a sealing block (6); the cable sealing structure (5) is coated on the outside of the through-wall cable (2); the sealing block (6) is arranged on the outside of the cable sealing structure (5) and is in sealing contact with the cable sealing structure (5); the clamp structure (3) is sleeved on the outside of the sealing block (6) and is capable of integrating a plurality of sealing blocks (6) and a plurality of cable sealing structures (5); the clamp structure (3) is sealingly connected to the airtight bulkhead (1).

2. The cable wall sealing structure according to claim 1, characterized in that: The clamp structure (3) comprises two sealing block clamping half rings (302).

3. The cable wall sealing structure according to claim 2, characterized in that: The hoop structure (3) is arranged on the side of the airtight bulkhead (1), and is fixedly connected to the airtight bulkhead (1) via a first bolt (101).

4. The cable wall sealing structure according to claim 3, characterized in that: It also comprises a sealing gasket (4); the sealing gasket (4) is arranged between the airtight bulkhead (1) and the clamp structure (3) to seal the two.

5. The cable wall sealing structure according to any one of claims 1 to 4, characterized in that: The cable sealing structure (5) comprises two symmetrically arranged cable sealing half rings (501), and the two cable sealing half rings (501) are connected to form a ring-shaped cable sealing structure via a fastening screw (502).

6. The cable wall sealing structure according to claim 5, characterized in that: A first sealing ring (503) is arranged on the inner side of the circular ring of the cable sealing structure (5); the first sealing ring (503) is in sealing contact with the through-wall cable (2).

7. The cable wall sealing structure according to claim 6, characterized in that: A second sealing ring (504) is arranged outside the circular ring of the cable sealing structure (5); the second sealing ring (504) is in contact with the sealing block (6).

8. The cable wall sealing structure according to claim 7, characterized in that: Sealing connection parts are arranged at both ends of the cable sealing half ring (501), and fastening screws (502) are installed on the sealing connection parts.

9. The cable wall sealing structure according to claim 8, characterized in that: A plurality of the first sealing rings (503) are arranged side by side on the inner side of the cable sealing structure (5); and a plurality of the second sealing rings (504) are arranged side by side on the outer side of the cable sealing structure (5).

10. A method for sealing a cable wall hole in an airtight cabin, characterized in that: The cable wall sealing structure according to any one of claims 1 to 9 is used for sealing; the sealing method comprises the following steps: Step S1: a cable sealing structure (5) is sleeved on the outside of the wall-penetrating cable (2); Step S2: embedding the cable sealing structure (5) into the sealing block (6); Step S3: a clamp structure (3) is provided on the outside of the sealing block (6), and the clamp structure (3) is fixedly mounted on the airtight bulkhead (1).

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