Conical fireproof and moistureproof plug and cable fireproof and moistureproof assembly

By using a combination of tapered elastic fire-resistant expansion arc parts and tapered spacers, the problems of high construction difficulty and low installation efficiency of traditional fireproof sealant are solved, achieving convenient and efficient sealing of cable penetration holes and strong fireproof and moisture-proof effects.

CN223978404UActive Publication Date: 2026-03-06HELWE (GUANGDONG)FIREPROOF TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing technologies, traditional fireproof sealant is difficult to use for sealing large through holes, is prone to collapse, and has low installation efficiency. In addition, the complexity of installing airtight structures and sealing flanges leads to low on-site installation efficiency.

Method used

The first and second conical elastic fireproof expansion arc parts are respectively inserted into the inner walls of the through hole to form a sealed cavity to seal the cable. They can be detachably connected to the wall. With the help of the conical occupant and auxiliary disassembly parts, the reserved installation hole can be sealed.

Benefits of technology

It achieves simple and convenient installation, improves construction efficiency, enhances sealing effect, adapts to different installation scenarios, and avoids the decline in fireproof and moisture-proof performance caused by unsealed pre-reserved installation holes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a conical fireproof and moistureproof plug and a cable fireproof and moistureproof assembly. The conical fireproof and dampproof plug comprises a first conical elastic fireproof expansion arc piece and a second conical elastic fireproof expansion arc piece, the first conical elastic fireproof expansion arc piece is used for being inserted into the first side inner wall of the through hole, and the second conical elastic fireproof expansion arc piece is used for being inserted into the second side inner wall of the through hole. A second conical mounting cavity of the second conical elastic fireproof expansion arc piece and a first conical mounting cavity of the first conical elastic fireproof expansion arc piece jointly form a sealing cavity, and the sealing cavity is used for sealing and accommodating a cable; or the sealing cavity is used for sealing and accommodating the conical spacer. The conical fireproof and moisture-proof plug is easy and convenient to install, the installation efficiency is improved, the conical fireproof and moisture-proof plug is suitable for application with a large number of through holes in an installation site, the sealing effect is good, and the adaptability of the conical fireproof and moisture-proof plug to different installation scenes is improved.
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Description

Technical Field

[0001] This disclosure relates to the field of fireproof and moisture-proof cable installation technology, and in particular to a conical fireproof and moisture-proof plug and a fireproof and moisture-proof cable component. Background Technology

[0002] Currently, the most common fire prevention method for cable penetration sealing is to use organic flexible fireproof sealant, such as fireproof putty, to seal the through holes. However, for some larger through holes, the fireproof putty may collapse at the sealing location, and the fireproof putty is prone to melting in high-temperature environments or freezing and hardening and cracking in low-temperature winter conditions, which leads to greater construction difficulties.

[0003] Therefore, a waterproof component for cable conduits penetrating walls, as disclosed in Chinese Patent Document No. CN 212453129 U, has emerged on the market. This component uses an airtight structure and a sealing flange to seal the penetration holes, effectively solving the problems of traditional fireproof sealant, which is difficult to install and prone to collapse. However, as shown in the attached drawings of the waterproof component, the airtight structure and sealing flange are respectively located at the bottom and outside of the wall. Furthermore, the relatively complex structures of the airtight structure and sealing flange themselves lead to complex on-site installation and low installation efficiency, especially when there are a large number of penetration holes at the installation site. Figure 1 As shown, this results in lower installation efficiency. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a conical fireproof and moisture-proof plug and cable fireproof and moisture-proof component that is simple and convenient to install, has high installation efficiency, good sealing effect, and high adaptability.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] A cone-shaped fireproof and moisture-proof plug, comprising:

[0007] The first conical elastic fireproof expansion arc member is used to be inserted into the inner wall of the first side of the through hole, and the first conical elastic fireproof expansion arc member forms a first conical mounting cavity.

[0008] A second conical, fire-resistant, elastic, expandable arc-shaped component is inserted into the second inner wall of the through hole and seals against the first conical, fire-resistant, elastic, expandable arc-shaped component, so that the second conical mounting cavity of the second conical, fire-resistant, elastic, expandable arc-shaped component and the first conical mounting cavity together form a sealed cavity, which is used to seal and accommodate the cable; or,

[0009] The sealed cavity is used to seal and accommodate the conical spacer.

[0010] In one embodiment, the taper of the first tapered elastic fire-resistant expansion arc member is 2°~15°; and / or,

[0011] The taper of the second conical elastic fireproof expansion arc component is 2°~15°.

[0012] In one embodiment, the first conical elastic fire-resistant expansion arc member further includes a first mounting portion disposed at the conical head of the first conical elastic fire-resistant expansion arc member, the first mounting portion being used for detachable connection with the wall; and / or,

[0013] The second conical elastic fireproof expansion arc member also includes a second mounting part, which is disposed at the cone head of the second conical elastic fireproof expansion arc member.

[0014] In one embodiment, the first conical elastic fire-resistant expansion arc member is a semi-circular structure; and / or,

[0015] The second conical elastic fireproof expansion arc component has a semi-circular structure.

[0016] In one embodiment, when the sealing cavity is used to seal and accommodate the conical spacer, the conical spacer is interference-fitted into the sealing cavity.

[0017] In one embodiment, the conical fireproof and moisture-proof plug further includes an auxiliary disassembly and assembly component, one end of the conical occupant having a disassembly and assembly hole, and the auxiliary disassembly and assembly component being inserted into the disassembly and assembly hole.

[0018] In one embodiment, the first tapered elastic fire-resistant expansion arc member further includes a first elastic sealing ring.

[0019] In one embodiment, the second tapered resilient fire-resistant expansion arc member further includes a second resilient sealing ring.

[0020] In one embodiment, the first tapered elastic fire-resistant expansion arc member is a first tapered elastic polyurethane fire-resistant expansion arc member; and / or,

[0021] The second conical elastic fire-resistant expansion arc component is a second conical elastic polyurethane fire-resistant expansion arc component; and / or,

[0022] The conical spacer is an elastic polyurethane conical spacer.

[0023] A fireproof and moisture-proof cable assembly includes the conical fireproof and moisture-proof plug described in any of the above embodiments.

[0024] Compared with the prior art, this disclosure has at least the following advantages:

[0025] 1) Since the first conical elastic fireproof expansion arc component and the second conical elastic fireproof expansion arc component are respectively inserted into the first inner wall and the second inner wall of the through hole, the first conical elastic fireproof expansion arc component can seal and abut against the second conical elastic fireproof expansion arc component in the through hole to form a sealing cavity, so that the formed sealing cavity can seal and accommodate the cable, thereby achieving effective sealing of the cable through hole, that is, achieving the fireproof and moisture-proof function of the cable through hole. Compared with the traditional sealing structure, the conical fireproof and moisture-proof plug disclosed herein is not only simple in structure, but also convenient to install, thereby improving the installation efficiency of construction personnel, and is especially suitable for applications with a large number of through holes at the installation site.

[0026] 2) To facilitate future cable capacity expansion and maintenance, multiple through holes are typically drilled in the wall. Some of these holes are used for cable installation (cable installation holes), while the remaining holes are reserved for future cable capacity expansion and maintenance (reserved installation holes). This allows construction workers to easily reinstall the cables during capacity expansion or maintenance. However, if these reserved installation holes are not sealed, moisture or flames can enter the surrounding cables, leading to a decrease in their fire and moisture resistance. Therefore, in this disclosure, the sealing cavity is used to seal and accommodate the conical spacer, allowing construction workers to directly use the first conical elastic fire-resistant expansion arc component, the second conical elastic fire-resistant expansion arc component, and the conical spacer to seal the reserved installation holes. This effectively avoids the problem of decreased fire and moisture resistance due to unsealed reserved installation holes and improves the adaptability of the conical fire and moisture plug to different installation scenarios.

[0027] 3) Since the first and second conical elastic fireproof expansion arc parts are independent entities and have a certain taper, on the one hand, it is convenient for construction personnel to install quickly, and on the other hand, it helps to better seal the gap between the through hole and the cable, thus achieving better fireproof and moisture-proof effects. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a cable fireproof and moisture-proof component according to an embodiment of the present invention;

[0030] Figure 2This is a schematic diagram of the structure of a conical fireproof and moisture-proof plug according to an embodiment of the present invention from one direction;

[0031] Figure 3 for Figure 2 A cross-sectional view of the cone-shaped fireproof and moisture-proof plug shown in one direction;

[0032] Figure 4 This is a diagram illustrating the use of the conical spacer and auxiliary assembly / disassembly components according to an embodiment of the present invention.

[0033] Reference numerals: 1. Cable fireproof and moisture-proof component; 10. Conical fireproof and moisture-proof plug; 100. First conical elastic fireproof expansion arc component; 110. First conical mounting cavity; 120. Conical head; 130. First mounting part; 200. Second conical elastic fireproof expansion arc component; 210. Second conical mounting cavity; 300. Conical spacer; 400. Auxiliary disassembly and assembly component; 500. First elastic sealing ring; 600. Second elastic sealing ring; 700. Sealing cavity; 20. Wall; 21. Through hole; 22. Reserved mounting hole; 23. Cable mounting hole; 30. Cable. Detailed Implementation

[0034] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0038] Please refer to 1 to Figure 2One embodiment of the conical fireproof and moisture-proof plug 10 includes a first conical elastic fireproof expansion arc member 100 and a second conical elastic fireproof expansion arc member 200. The first conical elastic fireproof expansion arc member 100 is inserted into the inner wall of the first side of the through hole 21, and the first conical elastic fireproof expansion arc member 100 forms a first conical mounting cavity 110. The second conical elastic fireproof expansion arc member 200 is inserted into the inner wall of the second side of the through hole 21 and seals against the first conical elastic fireproof expansion arc member 100, so that the second conical mounting cavity 210 of the second conical elastic fireproof expansion arc member 200 and the first conical mounting cavity 110 together form a sealing cavity 700, the sealing cavity 700 is used to seal and accommodate cables; and / or, the sealing cavity 700 is used to seal and accommodate a conical placeholder 300.

[0039] It is understood that, since the first conical elastic fireproof expansion arc member 100 and the second conical elastic fireproof expansion arc member 200 are respectively inserted into the first inner wall and the second inner wall of the through hole 21, the first conical elastic fireproof expansion arc member 100 can seal and abut against the second conical elastic fireproof expansion arc member 200 in the through hole 21 to form a sealing cavity 700, so that the formed sealing cavity 700 can seal and accommodate the cable, thereby achieving an effective seal on the through hole 21 of the cable 30, that is, achieving the fireproof and moisture-proof function of the through hole 21 of the cable 30. Compared with the traditional sealing structure, the conical fireproof and moisture-proof plug 10 disclosed herein is not only simple in structure, but also convenient to install, thereby improving the installation efficiency of construction personnel, and is especially suitable for applications with a large number of through holes 21 at the installation site.

[0040] It's also understandable that, to facilitate future capacity expansion and maintenance of the cable 30, multiple through holes 21 are typically made in the wall 20. Some of these through holes 21 are used for cable 30 installation, namely cable installation holes 23, while the remaining through holes 21 are reserved for future capacity expansion and maintenance of the cable 30, namely reserved installation holes 22. This allows construction personnel to easily reinstall the cable 30 during future capacity expansion or maintenance. However, if the reserved installation holes 22 are not sealed, moisture or flames can enter the surrounding cables 30 through the reserved installation holes 22, leading to a decrease in the fire and moisture resistance of the cable 30. Therefore, in this disclosure, since the sealing cavity 700 is used to seal and accommodate the conical occupant 300, construction personnel can directly use the first conical elastic fireproof expansion arc member 100, the second conical elastic fireproof expansion arc member 200 and the conical occupant 300 to achieve the sealing effect on the reserved installation hole 22, thereby effectively avoiding the problem of the cable 30's fireproof and moisture-proof performance being reduced due to the reserved installation hole 22 not being sealed, and improving the adaptability of the conical fireproof and moisture-proof plug 10 to different installation scenarios.

[0041] It is also understandable that, since the first conical elastic fireproof expansion arc component 100 and the second conical elastic fireproof expansion arc component 200 are independent entities and have a certain taper, on the one hand, it is convenient for construction personnel to install quickly, and on the other hand, it helps to better seal the gap between the through hole 21 and the cable, thus achieving a better fireproof and moisture-proof effect.

[0042] During use, the first conical elastic fireproof expansion arc member 100 and the second conical elastic fireproof expansion arc member 200 will deform under the action of external force to ensure that the first conical elastic fireproof expansion arc member 100 and the second conical elastic fireproof expansion arc member 200 can be well compacted and sealed in the gap between the through hole 21 and the cable.

[0043] In one embodiment, the taper of the first conical fire-resistant expansion arc member 100 is 2° to 15°; especially when used in conjunction with the second conical fire-resistant expansion arc member 200 having a taper of 2° to 15°, it ensures that the taper formed by the first conical fire-resistant expansion arc member 100 and the second conical fire-resistant expansion arc member 200 is small. In this way, while facilitating quick installation by construction personnel, it also avoids the problem of poor sealing effect caused by excessive taper of the conical fireproof and moisture-proof plug 10.

[0044] like Figure 2 As shown, in one embodiment, the first conical elastic fireproof expansion arc member further includes a first mounting portion 130. The first mounting portion 130 is disposed at the conical head 120 of the first conical elastic fireproof expansion arc member. The first mounting portion 130 is used for detachable connection with the wall 20, further improving the connection strength between the first conical elastic fireproof expansion arc member and the wall 20. Further, the first mounting portion 130 may have a mounting hole for threaded connection with the wall 20, thereby achieving a detachable connection between the first mounting portion 130 and the wall 20.

[0045] Similarly, in one embodiment, the second conical elastic fireproof expansion arc member further includes a second mounting part, which is disposed at the cone head 120 of the second conical elastic fireproof expansion arc member, further improving the connection strength between the first conical elastic fireproof expansion arc member and the wall 20.

[0046] In one embodiment, the width of the first conical elastic fire-resistant expansion arc member gradually decreases along its length, with the wider end being the cone head 120 and the narrower end being the cone tail. Similarly, the first conical elastic fire-resistant expansion arc member also has a structure similar to that of the second conical elastic fire-resistant expansion arc member.

[0047] like Figure 2As shown, in one embodiment, the first conical elastic fireproof expansion arc component is a semi-circular structure; especially when used in conjunction with the second conical elastic fireproof expansion arc component which is also a semi-circular structure, it not only facilitates quick installation by construction personnel, but also ensures that a well-sealed cavity 700 is formed after installation.

[0048] like Figure 1 As shown, in practical applications, the wall 20 typically has multiple through holes 21 where the cable 30 passes. Some of these through holes are used for cable installation, known as cable installation holes 23, while the remaining through holes are used for subsequent expansion and maintenance of the cable 30, known as reserved installation holes 22. If the reserved installation holes 22 are not sealed, moisture or flames can enter the surrounding cable 30 through them, leading to a decrease in the fire and moisture resistance of the cable 30. Therefore, in one embodiment, when the sealing cavity 700 is used to seal and accommodate the conical spacer 300, the conical spacer 300 is interference-fitted into the sealing cavity 700 to seal the reserved installation holes 22. This effectively avoids the problem of decreased fire and moisture resistance of the cable 30 due to unsealed reserved installation holes 22 and improves the adaptability of the conical fireproof and moisture-proof plug 10 to different installation scenarios.

[0049] like Figure 1 and Figure 4 As shown, in one embodiment, the conical fireproof and moisture-proof plug 10 further includes an auxiliary disassembly and assembly component 400. One end of the conical spacer 300 has a disassembly and assembly hole, and the auxiliary disassembly and assembly component 400 is inserted into the disassembly and assembly hole. The added auxiliary disassembly and assembly component 400 helps construction personnel to quickly disassemble and assemble the conical spacer 300 to quickly complete the installation of the cable 30 through the reserved installation hole 22. For example, in one embodiment, the auxiliary disassembly and assembly component 400 can be T-shaped to facilitate quick disassembly and assembly of the conical spacer 300 by construction personnel.

[0050] like Figure 2 and Figure 3 As shown, in one embodiment, the first conical elastic fireproof expansion arc member 100 further includes a first elastic sealing ring 500. In particular, in conjunction with the use of the second conical elastic fireproof expansion arc member 200, a second elastic sealing ring 600 is also included. The added first elastic sealing ring 500 and the first elastic sealing ring 500 can further improve the sealing performance of the first conical elastic fireproof expansion arc member 100, the second conical elastic fireproof expansion arc member 200 and the inner wall of the through hole 21, so as to play a better role in fire prevention and moisture prevention.

[0051] In one embodiment, the first conical elastic fireproof expansion arc member 100 is a first conical elastic polyurethane fireproof expansion arc member to ensure that the first conical elastic fireproof expansion arc member 100 has elasticity, fireproof and moisture-proof functions, so that the first conical elastic fireproof expansion arc member 100 can be squeezed and sealed on the first side of the gap between the through hole 21 and the cable. In particular, in conjunction with the use of the second conical elastic fireproof expansion arc member 200, which is a second conical elastic polyurethane fireproof expansion arc member, the gap between the through hole 21 and the cable can be well sealed.

[0052] In one embodiment, the conical occupant 300 is an elastic polyurethane conical occupant to ensure that the conical occupant 300 can be compacted and sealed within the sealing cavity 700 formed by the first conical elastic fireproof expansion arc member 100 and the second conical elastic fireproof expansion arc member 200 through compression, thereby achieving a good sealing of the reserved mounting hole 22.

[0053] It should be noted that the elastic polyurethane fireproof material used in the first conical elastic polyurethane fireproof expansion arc component, the second conical elastic polyurethane fireproof expansion arc component, and the elastic polyurethane conical occupant is prior art. This disclosure only protects the connection structure between the first conical elastic fireproof expansion arc component 100, the second conical elastic fireproof expansion arc component 200, the conical occupant 300, the first elastic sealing ring 500, and the first elastic sealing ring 500.

[0054] This disclosure also provides a fireproof and moisture-proof cable assembly 1, including a cable 30 and a conical fireproof and moisture-proof plug 10 as described in any of the above embodiments. The wall 20 has multiple through holes 21, which are divided into cable mounting holes 23 and reserved mounting holes 22. When the conical fireproof and moisture-proof plug 10 is applied to the cable mounting hole 23, the cable 30 passes through the sealing cavity 700 to effectively seal the gap between the cable and the through hole 21. In one embodiment, a sleeve is provided on the outer peripheral wall of the cable 30.

[0055] When the conical fireproof and moisture-proof plug 10 is applied in the reserved installation hole 22, in one embodiment, the first conical elastic fireproof expansion arc member 100 and the second conical elastic fireproof expansion arc member 200 are interference-fitted into the inner wall of the reserved installation hole 22 and form a sealing cavity 700. The conical occupant 300 is interference-fitted into the sealing cavity 700 to achieve the sealing of the reserved installation hole 22.

[0056] Compared with the prior art, this disclosure has at least the following advantages:

[0057] 1) Since the first conical elastic fireproof expansion arc member 100 and the second conical elastic fireproof expansion arc member 200 are respectively inserted into the first inner wall and the second inner wall of the through hole 21, the first conical elastic fireproof expansion arc member 100 can seal and abut against the second conical elastic fireproof expansion arc member 200 in the through hole 21 to form a sealing cavity 700, so that the formed sealing cavity 700 can seal and accommodate the cable, thereby achieving effective sealing of the through hole 21 of the cable 30, that is, achieving the fireproof and moisture-proof function of the through hole 21 of the cable 30. Compared with the traditional sealing structure, the conical fireproof and moisture-proof plug 10 disclosed herein is not only simple in structure, but also convenient to install, thereby improving the installation efficiency of construction personnel, and is especially suitable for applications with a large number of through holes 21 at the installation site.

[0058] 2) To facilitate future capacity expansion and maintenance of the cable 30, multiple through holes 21 are typically made in the wall 20. Some of these through holes 21 are used for cable 30 installation, namely cable installation holes 23. The remaining through holes 21 are used for subsequent capacity expansion and maintenance of the cable 30, namely reserved installation holes 22. This allows construction personnel to easily reinstall the cable 30 during future capacity expansion or maintenance. However, if the reserved installation holes 22 are not sealed, moisture or flames can enter the surrounding cables 30 through the reserved installation holes 22, leading to a decrease in the fire and moisture resistance of the cable 30. Therefore, in this disclosure, since the sealing cavity 700 is used to seal and accommodate the conical occupant 300, construction personnel can directly use the first conical elastic fireproof expansion arc member 100, the second conical elastic fireproof expansion arc member 200 and the conical occupant 300 to achieve the sealing effect on the reserved installation hole 22, thereby effectively avoiding the problem of the cable 30's fireproof and moisture-proof performance being reduced due to the reserved installation hole 22 not being sealed, and improving the adaptability of the conical fireproof and moisture-proof plug 10 to different installation scenarios.

[0059] 3) Since the first conical elastic fireproof expansion arc component 100 and the second conical elastic fireproof expansion arc component 200 are independent individuals and have a certain taper, on the one hand, it is convenient for construction personnel to install quickly, and on the other hand, it helps to better seal the gap between the through hole 21 and the cable, thus achieving better fireproof and moisture-proof effects.

[0060] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A tapered fire and moisture resistant plug, characterized in that, The first tapered elastic fireproof expansion arc piece is arranged in the first side inner wall of the through hole and forms a first tapered mounting cavity. The second tapered elastic fireproof expansion arc piece is arranged in the second side inner wall of the through hole and is in sealing abutment with the first tapered elastic fireproof expansion arc piece, so that a second tapered mounting cavity of the second tapered elastic fireproof expansion arc piece and the first tapered mounting cavity jointly form a sealing cavity for sealing and accommodating a cable; or The sealing cavity is used for sealing and accommodating a tapered space occupier. The taper of the first tapered elastic fireproof expansion arc piece is 2°-15°; and / or 2. A tapered fire and moisture resistant plug according to claim 1, wherein, The taper of the second tapered elastic fireproof expansion arc piece is 2°-15°. The first tapered elastic fireproof expansion arc piece further comprises a first mounting portion arranged at a tapered head of the first tapered elastic fireproof expansion arc piece, and the first mounting portion is used for detachable connection with a wall body; and / or 3. The tapered fire and moisture barrier plug of claim 1, wherein, The second tapered elastic fireproof expansion arc piece further comprises a second mounting portion arranged at a tapered head of the second tapered elastic fireproof expansion arc piece. The first tapered elastic fireproof expansion arc piece is a semicircular structure; and / or 4. The tapered fire and moisture barrier plug of claim 1, wherein, The second tapered elastic fireproof expansion arc piece is a semicircular structure. When the sealing cavity is used for sealing and accommodating a tapered space occupier, the tapered space occupier is arranged in the sealing cavity in interference.

5. The tapered fire and moisture barrier plug of claim 1, wherein, The tapered fireproof and moistureproof plug further comprises an auxiliary dismounting piece, one end of the tapered space occupier is provided with a dismounting hole, and the auxiliary dismounting piece is arranged in the dismounting hole.

6. A tapered fire and moisture resistant plug according to claim 5, wherein The first tapered elastic fireproof expansion arc piece further comprises a first elastic sealing ring.

7. The tapered fire and moisture barrier plug of claim 1, wherein, The second tapered elastic fireproof expansion arc piece further comprises a second elastic sealing ring.

8. The tapered fire and moisture barrier plug of claim 1, wherein, The first tapered elastic fireproof expansion arc piece is a first tapered elastic polyurethane fireproof expansion arc piece; and / or 9. The tapered fire and moisture barrier plug of claim 1, wherein, The second tapered elastic fireproof expansion arc piece is a second tapered elastic polyurethane fireproof expansion arc piece; and / or The tapered space occupier is an elastic polyurethane tapered space occupier. The tapered fireproof and moistureproof plug comprises the tapered fireproof and moistureproof plug according to any one of claims 1-9.

10. A cable fire and moisture resistant assembly comprising: ​

Citation Information

Patent Citations

  • Waterproof assembly for cable pipeline passing through wall

    CN212453129U