A high performance waterproof permeable fire wall
By using a sleeve assembly and a waterproof inner sleeve in the firewall, combined with a waterproof layer, the waterproofing problem at the firewall opening location was solved, achieving both waterproofing effectiveness and structural stability, and preventing the formation of water seepage leaks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIUYAN DATA TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-10
Smart Images

Figure CN224478598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of firewalls, specifically a high-performance waterproof and penetration-resistant firewall. Background Technology
[0002] Firewalls are solid fire-resistant partitions (such as concrete or brick masonry) designed according to building codes, extending from the foundation to the roof. They divide the building into multiple fire-resistant zones, preventing the spread of fire and providing heat and fire insulation. Their core function is to block the spread of fire, buying time for evacuation and fire rescue. They are now widely used.
[0003] Existing firewalls are limited by the actual pipeline wiring, so they are usually installed through conduits. There are generally two methods: the first is to pre-embed the conduits when the firewall is poured, and the second is to drill holes after construction. In practice, the first method is preferred because drilling holes after construction will damage the original strength. When these pipelines pass through the firewall, holes will be formed in the wall.
[0004] Existing walls typically have a waterproof layer on the exterior, but the openings are usually where pipes directly contact the inner wall. The waterproofing at these contact points is often poor, and if not properly addressed, they can easily become seepage channels. Water can seep into the wall along the gaps between the pipes and the wall, creating potential leaks. To address these issues, we offer a high-performance waterproof firewall. Utility Model Content
[0005] 1) Technical problems to be solved
[0006] This utility model proposes a high-performance waterproof firewall. By setting up components such as sleeve assemblies, it solves the problem that existing holes are generally where pipes directly contact the inner wall of the wall, and the waterproofing at the contact point is poor. If not handled properly, these holes can easily become seepage channels, allowing water to seep into the wall along the gap between the pipes and the wall, forming potential seepage leaks.
[0007] (ii) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-performance waterproof and permeable firewall, comprising a main structure, fireproof layers on both sides of the main structure, a plaster layer fixedly connected to the outer surface of the fireproof layer, a sleeve assembly penetrating the inner wall of the main structure, a waterproof inner sleeve fixedly connected to the inner wall of the sleeve assembly, the end of the waterproof inner sleeve penetrating the fireproof layer and extending vertically to form an annular waterproof barrier; a waterproof layer fixedly connected to the inner side of the fireproof layer, the inner side of the waterproof layer being fixedly connected to the end of the waterproof inner sleeve and completely covering and adhering to it, and the outer side of the waterproof layer being fixedly connected to the plaster layer.
[0009] Furthermore, the main structure includes a steel mesh and a concrete filler fixed together, the ends of the steel mesh being used to connect the upper and lower layers, and the outer surface of the concrete filler being fixedly connected to the fireproof layer.
[0010] Furthermore, the sleeve assembly includes a first sleeve and a second sleeve, both of which are inserted into and fixed to the interior of the concrete filler.
[0011] Furthermore, a fastening ring is integrally connected to the end of the second sleeve, and the outer surface of the fastening ring is threadedly connected to the first sleeve.
[0012] Furthermore, a sealing ring is fixedly connected to the inner wall of the first sleeve, and the outer surface of the sealing ring is in contact with the fastening ring.
[0013] Furthermore, the fireproof layer is made of inorganic minerals, and its lower part extends horizontally into the interior of the lower floor slab.
[0014] Furthermore, both the waterproof inner sleeve and the waterproof layer are made of asphalt.
[0015] (iii) Beneficial effects:
[0016] Compared with existing technologies, this high-performance waterproof firewall has the following advantages:
[0017] I. This high-performance waterproof firewall, through the installation of components such as sleeve assemblies, features a waterproof inner sleeve that tightly adheres to the inner wall of the sleeve assembly, isolating the pipeline from the sleeve assembly and blocking the path of water penetration from the inside of the sleeve to the sleeve assembly. The waterproof layer completely covers and adheres to the end of the waterproof inner sleeve, sealing the connection edge between the waterproof inner sleeve and the fireproof layer, preventing water from seeping into the main structure through the gap. This forms a complete waterproof closed loop from the inside of the sleeve to the outside of the wall, achieving a waterproof effect for the pipeline location. This solves the problem that existing holes are generally where the pipes are in direct contact with the inner wall of the wall, where the waterproofing is poor. If not properly handled, these holes can easily become seepage channels, allowing water to seep into the wall along the gap between the pipes and the wall, creating potential seepage leaks.
[0018] II. This high-performance waterproof and seepage-proof firewall, through the installation of components such as sleeve assemblies, penetrates the inner wall of the main structure and provides support for the wall opening. It consists of a first sleeve and a second sleeve, which are pre-embedded in the concrete filling material by formwork during the main structure construction stage, avoiding damage to the wall strength caused by drilling later. The first sleeve and the second sleeve are tightly fixed by a fastening ring thread connection. The sealing ring at the connection point deforms under the action of fastening force, filling the gap between the sleeves and initially forming a sealing structure. This not only maintains the structural stability at the opening but also lays the foundation for subsequent waterproof design. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is an exploded structural diagram of the main structure of this utility model;
[0022] Figure 3 This is a cross-sectional view of the concrete filler in this utility model;
[0023] Figure 4 This is a cross-sectional view of the fireproof layer in this utility model;
[0024] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;
[0025] Figure 6 This is an exploded structural diagram of the sleeve assembly in the figure.
[0026] In the diagram: 1. Main structure; 101. Steel mesh; 102. Concrete filler; 2. Fireproof layer; 3. Plaster layer; 4. Sleeve assembly; 401. First sleeve; 402. Second sleeve; 403. Fastening ring; 404. Sealing ring; 5. Waterproof inner sleeve; 6. Waterproof layer. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figure 1-6As shown, this utility model provides a technical solution: a high-performance waterproof and permeable firewall, including a main structure 1, with fireproof layers 2 on both sides of the main structure 1, a plaster layer 3 fixedly connected to the outer surface of the fireproof layer 2, a sleeve assembly 4 penetrating through the inner wall of the main structure 1, a waterproof inner sleeve 5 fixedly connected to the inner wall of the sleeve assembly 4, the end of the waterproof inner sleeve 5 penetrating the fireproof layer 2 and extending vertically to form an annular waterproof barrier; a waterproof layer 6 fixedly connected to the inner side of the fireproof layer 2, the inner side of the waterproof layer 6 fixedly connected to the end of the waterproof inner sleeve 5 and completely covering and adhering to it, and the outer side of the waterproof layer 6 fixedly connected to the plaster layer 3. The main structure 1, as the main supporting structure of the whole, has a certain fireproof effect. The protective layer 2 is used to protect the sides of the main structure 1 to prevent fire from directly burning the main structure 1. The plaster layer 3 is the final construction step, used to level the outer surface and increase aesthetics. The sleeve assembly 4 is used to support the openings on the main structure 1 and maintain structural stability. The waterproof inner sleeve 5 isolates the sleeve assembly 4 from the outside to prevent water inside the sleeve assembly 4 from vertically penetrating into the sleeve assembly 4 and then into the main structure 1. The waterproof layer 6 covers the edge of the waterproof inner sleeve 5, further increasing the waterproof effect.
[0029] The main structure 1 includes a steel mesh 101 and a concrete filler 102 fixed together. The ends of the steel mesh 101 are used to connect the upper and lower layers. The outer surface of the concrete filler 102 is fixedly connected to the fireproof layer 2. During construction, the steel bars are first combined and tied to form the steel mesh 101. The diameter of the steel bars and the usage specifications are referenced from the relevant construction specifications, which will not be elaborated in detail in this application. Then, the template is assembled according to the thickness of the main structure 1, the steel mesh 101 is placed inside, and then concrete is poured. The main structure 1 is formed by cast-in-place method. Fire retardant additives, such as fly ash and slag powder, are added to the concrete to enhance its inherent fire resistance.
[0030] The sleeve assembly 4 includes a first sleeve 401 and a second sleeve 402. Both the first sleeve 401 and the second sleeve 402 are inserted into the concrete filler 102 and fixed thereto. Before pouring, the first sleeve 401 and the second sleeve 402 are pre-installed in the designated position and held in place by a template with a round hole, thereby fixing them together with the concrete filler 102 to form a pipe passage. Both the first sleeve 401 and the second sleeve 402 are made of metal compressive-resistant material and have a certain supporting capacity.
[0031] The end of the second sleeve 402 is integrally connected with a fastening ring 403. The outer surface of the fastening ring 403 is threadedly connected to the first sleeve 401. To facilitate installation during pouring, the first sleeve 401 and the second sleeve 402 can be disassembled, inserted into each other on both sides, and then tightened to fix them.
[0032] A sealing ring 404 is fixedly connected to the inner wall of the first sleeve 401. The outer surface of the sealing ring 404 is in contact with the fastening ring 403. The sealing ring 404 is squeezed by the fastening ring 403 to increase the sealing performance, thereby waterproofing and preventing water or humid gas from contacting the main structure 1.
[0033] Fireproof layer 2 is made of inorganic minerals. The lower part of fireproof layer 2 extends horizontally into the interior of the lower floor slab. Fireproof layer 2 is used to prevent fire from directly contacting the main structure 1, thereby increasing the fireproof effect.
[0034] Both the waterproof inner sleeve 5 and the waterproof layer 6 are made of asphalt, specifically APP modified asphalt roll material, which uses atactic polypropylene plasmon modified asphalt and is suitable for high-temperature environments.
[0035] Working principle: The main structure 1, as the core supporting component, is fixedly combined with the steel mesh 101 and the concrete filler 102, providing a stable structural framework for the whole. The concrete filler 102 is formed by relying on the steel mesh 101 and has basic fire resistance due to its own material properties, thus ensuring the overall strength and stability of the firewall. The fireproof layer 2 on both sides of the main structure 1 is made of inorganic mineral material and is directly attached to the outer surface of the main structure 1, forming the first fire barrier. It can effectively prevent fire from directly contacting the main structure 1 and delay the erosion of the core structure by fire. The plaster layer 3 on the outer surface of the fireproof layer 2 is the final construction step. It not only achieves the leveling and aesthetic optimization of the outer surface, but also forms physical protection for the fireproof layer 2, reducing the direct damage of the fireproof layer to the external environment.
[0036] The sleeve assembly 4 is installed through the inner wall of the main structure 1, and plays a supporting role for the wall opening. It consists of a first sleeve 401 and a second sleeve 402. During the construction of the main structure 1, it is pre-embedded in the concrete filling body 102 by fixing it with a template, which avoids damage to the wall strength caused by drilling later. The first sleeve 401 and the second sleeve 402 are tightly fixed by a threaded connection of a fastening ring 403. The sealing ring 404 at the connection point deforms under the action of fastening force, filling the gap between the sleeves and initially forming a sealing structure. This not only maintains the structural stability at the opening, but also lays the foundation for subsequent waterproofing design.
[0037] Waterproofing and seepage prevention are the core advantages of this solution. It achieves three-dimensional protection through multi-level barriers. The waterproof inner sleeve 5, fixed to the inner wall of the sleeve assembly 4, is the first line of defense. Made of APP modified bitumen membrane, it tightly adheres to the inner wall of the sleeve assembly 4, isolating the pipeline from the sleeve assembly 4 and blocking the path of water penetration from the inside of the sleeve to the sleeve assembly 4. Simultaneously, the end of the waterproof inner sleeve 5 penetrates the fireproof layer 2 and extends vertically, forming a ring-shaped waterproof barrier that effectively prevents water from vertically penetrating along the gap between the end of the sleeve and the fireproof layer 2. The waterproof layer 6, fixed to the inner side of the fireproof layer 2, further enhances the waterproofing effect. The waterproof layer 6, also made of APP modified bitumen membrane, is fixedly connected to and completely covers the end of the waterproof inner sleeve 5, sealing the connection edge between the waterproof inner sleeve 5 and the fireproof layer 2, preventing water from seeping into the main structure 1 through this gap. Furthermore, the outer side of the waterproof layer 6 is fixed to the plaster layer 3, forming a complete waterproof closed loop from the inside of the sleeve to the outside of the wall, achieving waterproofing of the pipeline location.
[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A high-performance waterproof and permeable firewall, comprising a main structure (1), wherein fireproof layers (2) are provided on both sides of the main structure (1), and a plaster layer (3) is fixedly connected to the outer surface of the fireproof layers (2), characterized in that: The inner wall of the main structure (1) is provided with a sleeve assembly (4), and a waterproof inner sleeve (5) is fixedly connected to the inner wall of the sleeve assembly (4). The end of the waterproof inner sleeve (5) penetrates the fireproof layer (2) and extends vertically to form an annular waterproof barrier. The inner side of the fireproof layer (2) is fixedly connected to the waterproof layer (6), the inner side of the waterproof layer (6) is fixedly connected to the end of the waterproof inner sleeve (5) and completely covers and adheres to it, and the outer side of the waterproof layer (6) is fixedly connected to the plaster layer (3).
2. The high-performance waterproof firewall according to claim 1, characterized in that: The main structure (1) includes a steel mesh (101) and a concrete filler (102) fixed together. The ends of the steel mesh (101) are used to connect the upper and lower layers. The outer surface of the concrete filler (102) is fixedly connected to the fireproof layer (2).
3. A high-performance waterproof firewall according to claim 2, characterized in that: The sleeve assembly (4) includes a first sleeve (401) and a second sleeve (402), both of which are inserted into and fixed to the concrete filler (102).
4. A high-performance waterproof firewall according to claim 3, characterized in that: The end of the second sleeve (402) is integrally connected with a fastening ring (403), and the outer surface of the fastening ring (403) is threadedly connected to the first sleeve (401).
5. A high-performance waterproof firewall according to claim 4, characterized in that: A sealing ring (404) is fixedly connected to the inner wall of the first sleeve (401), and the outer surface of the sealing ring (404) is in contact with the fastening ring (403).
6. A high-performance waterproof firewall according to claim 1, characterized in that: The fireproof layer (2) is made of inorganic minerals, and the lower part of the fireproof layer (2) extends horizontally into the interior of the lower floor slab.
7. A high-performance waterproof firewall according to claim 1, characterized in that: The waterproof inner sleeve (5) and the waterproof layer (6) are both made of asphalt.