Waterproof sleeve integrated outer wall rainproof tuyere

By using an integrated waterproof sleeve for exterior wall rainproof vents, and through the coordinated design of sleeve fittings and louver fittings, the problems of poor waterproofing and facade damage caused by the steel sleeve plus vent cap design are solved, achieving efficient waterproofing and facade harmony.

CN223497326UActive Publication Date: 2025-10-31HANGZHOU LVCHENG ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202422892043.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-10-31
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

In existing building ventilation systems, the use of steel sleeves with vent caps results in poor waterproofing and damages the building facade. In particular, the uncontrollable height difference between the inside and outside of the steel sleeve can easily lead to rainwater leakage and facade inconsistencies.

Method used

The exterior wall rainproof vent adopts an integrated waterproof sleeve, including sleeve fittings and louver fittings. The sleeve fittings are embedded in the structure, and the louver fittings are matched with the building surface. Through specific shapes and anti-retrogression texture design, the waterproof effect is ensured and the vent is flush with the building facade.

Benefits of technology

It effectively prevents rainwater backflow, avoids reverse slope of the casing and leakage, improves waterproof performance, and is consistent with the building facade, enhancing the appearance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof sleeve integrated outer wall rainproof tuyere, which comprises a sleeve fitting and a shutter fitting matched with the sleeve fitting, and is characterized in that the sleeve fitting is used as an embedded structural member of a main construction building outer wall, and the shutter fitting is used as a component matched with the sleeve fitting and a building surface layer in a facade construction stage; the casing pipe fitting comprises an inner ring and an outer frame which are located at the two ends, the inner ring and the outer frame are connected through a pipe body, a waterproof wing ring is arranged on the pipe wall of the middle portion of the pipe body, and inner retaining threads are arranged in an inner hole of the pipe body where the outer frame is located. The shutter accessory comprises a shutter frame, one end of the shutter frame is provided with an outer retaining thread matched with the inner retaining thread, and the other end of the shutter frame is provided with a rainproof shutter. The hidden dangers that a steel sleeve possibly has a reverse slope, rainwater flows backwards, and water seeps along the sleeve are avoided, the problems that the hood protrudes out of a building surface layer to damage a facade and the like are solved, construction is convenient, and the outdoor side impression and facade effect coordination are improved.
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Description

Technical Field

[0001] This utility model relates to building technology, and in particular to an integrated waterproof sleeve for exterior wall rainproof vents that prevents rainwater from entering the interior and facilitates the treatment of ventilation openings on the exterior walls of buildings. Background Technology

[0002] Currently, ventilation systems are typically added to bathrooms during the finishing stage of building construction. For residential buildings, integrated ceilings usually also include built-in ventilation. The most common pre-installed ventilation system is a steel sleeve with a vent cap. The steel sleeve is embedded in the structural beams during the main building construction phase, while the vent cap is fitted over the outside of the sleeve later for rain protection. This approach has several problems, the most significant being insufficient rain protection and incompatibility with the building facade. Since the steel sleeve itself is not waterproof, uncontrollable height differences between the inside and outside often occur during the pre-installation phase, potentially leading to reverse slopes on the sleeve. When rainwater from the exterior wall enters the sleeve, it flows into the interior, causing leaks. To further enhance rain protection, a vent cap is added to the outside of the sleeve. While this prevents rainwater from entering the sleeve to some extent, the vent cap is often made of metal and protrudes from the building facade, resulting in numerous protruding openings and negatively impacting the building's appearance.

[0003] Therefore, the use of steel sleeves and vent caps for ventilation holes in general engineering projects does not provide good waterproofing and causes some damage to the building facade. How to solve the problems of waterproofing, rainproofing and maintaining the building facade is an urgent issue to be addressed. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems of poor waterproofing effect and damage to building facade caused by the use of steel sleeve and wind cap for exhaust vents. It provides an external wall rainproof vent with an integrated waterproof sleeve. The waterproofing effect is enhanced by a specific sleeve construction, avoiding the hidden dangers of sleeve back slope and rainwater backflow. Furthermore, the installation of rainproof louvers makes the outer side of the exhaust vent flush and harmonious with the building facade.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a waterproof sleeve integrated exterior wall rainproof vent, including sleeve fittings and louver fittings that cooperate with the sleeve fittings, characterized in that the sleeve fittings are embedded structural components of the exterior wall of the main construction building, and the louver fittings are components that cooperate with the sleeve fittings and the building surface layer during the facade construction stage.

[0006] The sleeve fitting includes an inner ring and an outer frame located at both ends. The inner ring and the outer frame are connected by a tube body, and a waterproof wing ring is provided on the tube wall in the middle part of the tube body. The inner hole of the tube body where the outer frame is located is provided with an inner anti-reverse groove.

[0007] The louver accessory includes a louver frame, one end of which is provided with an outer anti-reverse groove that matches the inner anti-reverse groove, and the other end of which is provided with a rainproof louver.

[0008] The bottom surface of the pipe facing outdoors is lower than the bottom surface of the pipe facing indoors.

[0009] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, the inner ring, outer frame, tube body, waterproof wing ring, and inner anti-reverse groove of the sleeve fitting are integrally formed in one piece.

[0010] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, the pipe body includes a round sleeve connected to the inner ring and a square-to-round diameter reducing pipe connected to the outer frame.

[0011] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, the centerline of the square-round reducing pipe is offset downward from the centerline of the round sleeve.

[0012] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, a reinforcing armhole is provided between the inner ring of the sleeve fitting and the outer wall of the sleeve.

[0013] In the aforementioned waterproof sleeve integrated exterior wall rainproof vent, preferably, the end face of the louver fitting facing the sleeve fitting is provided with an insect-proof net.

[0014] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, the inner anti-reverse groove and the outer anti-reverse groove have opposite tooth shapes.

[0015] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, the rainproof louver end face of the louver accessory is flush with or lower than the building surface.

[0016] In the aforementioned integrated waterproof sleeve exterior wall rainproof vent, preferably, the length of the sleeve fitting is equal to the thickness of the building exterior wall, and a sealing filler is provided at the mating part of the sleeve fitting and the louver fitting.

[0017] This technical solution mainly consists of two parts: sleeve fittings and louver fittings. The sleeve fittings are used in the pre-embedding stage of the main construction, and the louver fittings are used in the facade construction stage. Through the clever cooperation of the two components in the two construction stages, a structural sleeve air vent that is highly precise, highly adaptable, and fully meets the technical requirements for rainproof and waterproofing is obtained.

[0018] The sleeve fittings in this device are designed as a specific-shaped, one-piece pre-embedded component: the inner ring and outer frame at both ends serve as the reference for mating with the inner and outer surfaces of the building's exterior walls, and also as the connectors for the louver fittings and indoor exhaust hoses installed during the facade construction phase. The specific shape is reflected in the tube body between the inner ring and the outer frame; the inner ring connects to a round sleeve, with a reinforcing armhole between them for reinforcement, preventing material deformation or damage; the outer frame connects to a square-to-round diameter reducer, facilitating the later installation of rainproof louvers. A waterproof wing ring between the round sleeve and the square-to-round diameter reducer prevents rainwater from seeping into the interior through the outside of the sleeve.

[0019] Furthermore, the top of the round sleeve is flush with the top of the square-round reducer, while the bottom of the square-round reducer is lower than the round sleeve, forming an effective height difference to prevent outdoor rain and other water from flowing into the room, thus enhancing the waterproof effect.

[0020] Furthermore, the material and color of the rainproof louvers in this solution can be customized according to the building facade requirements. Since the louvers do not protrude from the building surface and square louvers offer a good facade effect, the exterior side achieves excellent harmony with the building facade. The inner side of the louver fittings is lined with insect-proof mesh, effectively preventing insects from entering and thus keeping the inside of the louvers clean.

[0021] The inner side of the outer frame of the sleeve fitting of this device is provided with an inner anti-backward groove, and the louver fitting is provided with an outer anti-backward groove that matches it. Through the specific difference in the size of the anti-backward groove and the specific texture structure, the louver fitting is unidirectionally tightened when it is fitted into the sleeve fitting, preventing slippage.

[0022] Compared with the prior art, the advantages of this utility model are: it avoids the hidden dangers of reverse slope, rainwater backflow, and water seepage along the sleeve that may exist in steel sleeves; it solves the problems of wind caps protruding from the building surface and causing damage to the facade; it is convenient to construct; and it enhances the waterproof effect of the waterproof sleeve through specific sleeve construction methods. Combined with the application of square rainproof louvers, it effectively improves the appearance of the outdoor side and the harmony of the facade effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of a sleeve fitting according to the present invention.

[0025] Figure 3 This is a schematic diagram of a louver accessory structure according to this utility model.

[0026] Figure 4 This is a partially enlarged structural diagram of the mating parts of the inner and outer anti-reverse grooves of this utility model.

[0027] Figure 5 This is a schematic diagram of the installation state during the pre-embedded stage of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of this utility model in its completed and usable state.

[0029] In the diagram: 1-Sleeve fittings, 101-Inner ring, 102-Round sleeve, 103-Waterproof wing ring, 104-Outer frame, 105-Square-round reducer, 106-Inner anti-reverse groove, 107-Reinforcing armhole, 2-Louvre fittings, 201-Louvre frame, 202-Rainproof louver, 203-Outer anti-reverse groove, 204-Insect screen, 3-Building exterior wall, 4-Exhaust hose, 5-Building surface layer, 6-Sealing filler. Detailed Implementation

[0030] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0031] This embodiment describes an integrated waterproof sleeve for exterior wall rainproof vents, such as... Figure 1 As shown, it includes a sleeve fitting 1 and a louver fitting 2 that cooperate with each other. The sleeve fitting 1 serves as an embedded structural component of the exterior wall 3 of the main building under construction. See [reference needed]. Figure 5 Louver fitting 2, as a component that works in conjunction with sleeve fitting 1 and building surface layer 5 during the facade construction phase, can be found in [reference needed]. Figure 6 .

[0032] The specific structure of sleeve fitting 1 is as follows: Figure 2 As shown, the fitting includes an inner ring 101 and an outer frame 104 located at both ends. The inner ring 101 has a circular flange structure facing the interior, while the outer frame 104 has a square flange structure facing the exterior. The inner ring 101 and the outer frame 104 are connected by a pipe body, which includes a circular sleeve 102 connected to the inner ring 101 and a square-to-circular reducer 105 (i.e., a round top and square bottom pipe) connected to the outer frame 104. A waterproof wing ring 103 is provided on the pipe wall in the middle part of the pipe body; an internal anti-reverse groove 106 is provided in the inner hole of the pipe body where the outer frame 104 is located; and multiple triangular plate-shaped reinforcing armholes 107 are provided between the inner ring 101 of the sleeve fitting 1 and the outer wall of the pipe body, with the multiple reinforcing armholes 107 evenly distributed on the circumference of the pipe body.

[0033] The inner ring 101, outer frame 104, tube body, waterproof wing ring 103, and inner anti-reverse groove 106 in the above-mentioned sleeve fitting 1 are a one-piece structure formed in one piece.

[0034] Venetian blind accessory 2 includes a square veneer frame 201, such as Figure 3 As shown, one end of the louver frame 201 is provided with an outer anti-reverse groove 203 that cooperates with the inner anti-reverse groove 106, and the other end (outer side) of the louver frame 201 is provided with a rainproof louver 202. The end face of the louver accessory 2 facing the sleeve accessory 1 is fitted with an insect-proof net 204 by screws. The insect-proof net 204 is made of wire mesh or the like.

[0035] The fit and structural shape of the inner anti-lock groove 106 and the outer anti-lock groove 203 are as follows: Figure 4 As shown, it is a single-sided arc tooth structure. The teeth of the inner anti-reverse groove 106 and the outer anti-reverse groove 203 are biased in opposite directions. That is, the single-sided arc of the inner anti-reverse groove 106 faces the outside of the pipe opening, and the single-sided arc of the outer anti-reverse groove 203 faces the direction of the inner anti-reverse groove 106. After mating, it has the effect of unidirectional fastening to prevent backward movement.

[0036] Furthermore, the bottom surface of the pipe body facing the outside is lower than the bottom surface of the pipe facing the inside. This is achieved by offsetting the center line of the square-round reducing pipe 105 downward from the center line of the round sleeve 102. That is, the top of the round sleeve 102 is flush with the top of the square-round reducing pipe 105, and the bottom of the square-round reducing pipe 105 is lower than the round sleeve 102. This creates an effective height difference, which completely prevents rainwater from flowing into the room from the outside and enhances the waterproof effect.

[0037] In addition, the length of the sleeve fitting 1 is equal to the thickness of the building exterior wall 3, and a sealing layer 6 is provided at the mating parts of the sleeve fitting and the louver fitting 2 during installation. The rainproof louver 202 end face of the louver fitting 2 is flush with or slightly lower than the building surface layer 5.

[0038] During the main building construction, before concrete pouring, sleeve fitting 1 is fixed between the formwork and reinforcing bars. After the concrete is poured and vibrated, sleeve fitting 1 is pre-embedded in the primary structure of the building's exterior wall 3. In the later facade construction stage, louver fitting 2 is fitted into sleeve fitting 1, secured by anti-retrograde grooves. The fitting depth is determined by ensuring the rainproof louver 202 is flush with the building surface layer 5. To enhance waterproofing and prevent holes, sealing material is used to completely seal the connection between sleeve fitting 1 and louver fitting 2, ensuring complete prevention of rainwater intrusion from the building's exterior.

[0039] This embodiment combines specific waterproofing techniques such as the waterproof wing ring 103 and the square-to-round reducing pipe 105 to form an effective waterproofing measure. During the construction of the ventilation duct in the interior decoration, the exhaust hose 4 is inserted into the round sleeve 102, and the space between the exhaust hose 4 and the round sleeve 102 is completely sealed with sealing material. Thus, the construction of the ventilation system is completed, achieving effective waterproofing and harmonizing with the building facade.

[0040] The above embodiments are illustrative of the present invention and not intended to limit the present invention. The described embodiments are merely some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

Claims

1. A waterproof sleeve integrated exterior wall rainproof vent, comprising sleeve fittings (1) and louver fittings (2) that cooperate with the sleeve fittings, characterized in that... Sleeve fittings are embedded structural components of the main construction building exterior wall (3), and louver fittings are components that cooperate with sleeve fittings and building surface layer (5) during the facade construction stage. The sleeve fitting includes an inner ring (101) and an outer frame (104) located at both ends. The inner ring and the outer frame are connected by a tube body, and a waterproof wing ring (103) is provided on the tube wall in the middle part of the tube body. An inner anti-reverse groove (106) is provided in the inner hole of the tube body where the outer frame is located. The louver accessory (2) includes a louver frame (201), one end of which is provided with an outer anti-reverse groove (203) that cooperates with the inner anti-reverse groove, and the other end of which is provided with a rainproof louver (202). The bottom surface of the pipe facing outdoors is lower than the bottom surface of the pipe facing indoors.

2. The waterproof sleeve integrated external wall rainproof vent according to claim 1, characterized in that, The inner ring (101), outer frame (104), tube body, waterproof wing ring (103), and inner anti-reverse groove (106) of the sleeve fitting are integral structures formed in one piece.

3. A waterproof sleeve integrated exterior wall rainproof vent according to claim 1 or 2, characterized in that, The tube body includes a round sleeve (102) connected to the inner ring (101) and a square-to-round diameter reducing tube (105) connected to the outer frame (104).

4. The waterproof sleeve integrated exterior wall rainproof vent according to claim 1, characterized in that, The centerline of the square-round reducer (105) deviates downward from the centerline of the round sleeve (102).

5. A waterproof sleeve integrated exterior wall rainproof vent according to claim 1, 2, or 4, characterized in that, The inner ring (101) of the sleeve fitting (1) is provided with a reinforcing armhole (107) between the inner ring (101) and the outer wall of the tube.

6. The waterproof sleeve integrated exterior wall rainproof vent according to claim 1, characterized in that, The louver fitting (2) is provided with an insect-proof net (204) on the end face of the sleeve fitting (1).

7. A waterproof sleeve integrated exterior wall rainproof vent according to claim 1, 2, 4, or 6, characterized in that, The tooth profiles of the inner anti-reverse groove (106) and the outer anti-reverse groove (203) are opposite.

8. The waterproof sleeve integrated exterior wall rainproof vent according to claim 1, characterized in that, The rainproof louver (202) end face of the louver accessory (2) is flush with or lower than the building surface layer (5).

9. A waterproof sleeve integrated exterior wall rainproof vent according to claim 1, 2, 4, 6, or 8, characterized in that, The length of the sleeve fitting (1) is equal to the thickness of the building exterior wall (3), and a sealing filler (6) is provided at the mating part of the sleeve fitting and the louver fitting (2).