A fresh air duct wall penetrating structure

Abstract

The utility model discloses a fresh air pipe wall -penetrating structure, include: fresh air pipe, the outer wall body is equipped with the hole of passing through a wall, and the water stop pier is equipped with the mounting hole of intercommunication hole of passing through a wall, wherein, the water stop pier is located the outside environment of outer wall body and blocks the hole of passing through a wall, and the fresh air pipe passes the mounting hole, the hole of passing through a wall and enters the indoor environment from the outdoor environment. The utility model effectively reduces the indoor decoration loss and the discomfort of living environment caused by the leakage of the direct horizontal penetration of the fresh air system through the outer wall, protects the indoor decoration and improves the life quality.

Description

Technical Field

[0001] This utility model relates to the field of fresh air technology, and further to a fresh air duct through-wall structure. Background Technology

[0002] With the rapid development of the market and the rapid iteration of housing quality, the Six Constant Technology System has been rapidly popularized and recognized by the market sales and customer experience sectors.

[0003] The replacement fresh air system mainly consists of a fresh air unit and air supply ducts. The fresh air unit is suspended on the outdoor equipment platform, and the fresh air riser enters the surface of the equipment platform, then passes through the exterior wall and enters the ground.

[0004] Currently, when air supply ducts pass through walls, they are generally horizontal, passing through the exterior walls from the external environment and entering the ground. This makes the holes in the exterior walls created by the air supply ducts prone to leakage, allowing external water to enter the indoor environment. This can easily lead to significant damage to interior decoration, and long-term water seepage can easily cause mold growth in the indoor environment, affecting the living environment. Therefore, those skilled in the art urgently need to solve the technical problems caused by installing fresh air systems. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide a wall-penetrating structure for fresh air ducts, effectively reducing interior decoration losses and discomfort in the living environment caused by leakage due to the fresh air system directly penetrating the exterior wall horizontally.

[0006] To achieve the above objectives, this utility model provides a new type of air duct wall-penetrating structure, comprising:

[0007] Fresh air duct;

[0008] The exterior wall has through-holes;

[0009] And the water-stop pier, which has an installation hole that connects to the through-wall hole;

[0010] Among them, the water-stopping pier is set on the outer side of the exterior wall and blocks the through-wall hole;

[0011] The fresh air duct enters the indoor environment from the outdoor environment through the installation hole and the wall penetration hole.

[0012] In this embodiment, the water-stop block is placed on the outside of the wall penetration hole and seals the hole. Since the upper surface of the water-stop block on the side closest to the outer wall is definitely not lower than the highest point of the wall penetration hole, it greatly reduces the infiltration of rainwater from the external environment into the indoor environment through the wall penetration hole, effectively reducing the damage to the interior decoration caused by leakage due to the fresh air system. At the same time, since the probability of rainwater entering the indoor environment is greatly reduced, it also greatly reduces the mold phenomenon caused by water seepage in the indoor environment, thereby improving the living environment, protecting the interior decoration and improving the quality of life.

[0013] In some implementations, the waterstop is coated with a waterproof layer.

[0014] In this embodiment, the waterproof layer further enhances the anti-seepage performance of this invention, while protecting the water-stop block and extending its service life.

[0015] In some embodiments, the waterstop includes a distal face away from the outer wall, a proximal face near the outer wall, and a ramp connecting the distal face and the proximal face and located above both; the ramp is inclined downward from the proximal face toward the distal face.

[0016] In this embodiment, the upper surface of the water-stop pier is set as a slope. In this way, rainwater falling on the water-stop pier can flow away quickly along the slope due to gravity and is less likely to remain on the water-stop pier. This greatly reduces the possibility of rainwater flowing along the contact point between the water-stop pier and the outer wall to the wall penetration hole, and further reduces the probability of rainwater infiltrating into the indoor environment.

[0017] In some implementations, the angle between the slope and the horizontal plane is not less than 10°.

[0018] In this embodiment, by reasonably setting the slope's inclination angle, the construction difficulty is reduced while ensuring the drainage of rainwater.

[0019] In some implementations, a fresh air insulation layer is provided on the outside of the fresh air duct.

[0020] In this embodiment, the fresh air duct is insulated by wrapping it with a fresh air insulation layer to ensure constant temperature of the supplied air, thereby reducing the energy consumption of the fresh air system and improving the comfort of the indoor environment.

[0021] In some implementations, a protective sleeve is fitted over the outside of the fresh air insulation layer.

[0022] In this embodiment, the fresh air insulation layer is protected by a protective sleeve, extending its service life and thus extending the service life of this utility model.

[0023] In some embodiments, the fresh air insulation layer is located on the outer side of the exterior wall and includes a first sub-fresh air insulation layer and a second sub-fresh air insulation layer spliced ​​together; wherein, the first sub-fresh air insulation layer is built into the water-stop pier, the second sub-fresh air insulation layer is exposed outside the water-stop pier, and at least one of the following is laid at the internal and external corners formed by the second sub-fresh air insulation layer and the water-stop pier: a sealing layer, a waterproof membrane, and a waterproof coating.

[0024] In this embodiment, segmenting the fresh air insulation layer reduces construction difficulty and thus lowers the cost of this invention. It also allows for segmented installation and replacement of the fresh air insulation layer, ensuring insulation performance. Furthermore, at least one of the following—a sealing layer, waterproof membrane, and waterproof coating—ensures the sealing and waterproofing performance of the inner and outer corners formed by the fresh air insulation layer and the water-stop pier, guaranteeing air supply performance.

[0025] In some implementations, a protective plate is fitted over the outside of the fresh air duct.

[0026] In this embodiment, the protective plate protects the fresh air duct from wind, rain and sun, while effectively guiding rainwater to flow downwards in a timely manner, extending the service life of this utility model and reducing its usage cost; it can also decorate the building facade and improve the building's aesthetics.

[0027] In some implementations, a gap is provided between the lower end of the protective plate and the waterstop block.

[0028] In this embodiment, a gap is provided between the lower end of the protective plate and the water-stop pier. On the one hand, the protective plate can promptly guide the rainwater from its upper section downwards to the end of the water-stop pier away from the outer wall and discharge it from the gap, thereby moving away from the contact point between the water-stop pier and the outer wall, effectively reducing the probability of rainwater falling at the contact point, and further reducing the probability of rainwater infiltration.

[0029] In some implementations, a gap of 5mm-30mm is provided between the lower end of the protective plate and the waterstop block.

[0030] In this embodiment, the reasonable gap size can not only improve the drainage performance of this utility model, but also decorate the building facade and improve the building's aesthetics.

[0031] In some implementations, the water-stopping pier is placed on the outdoor floor slab, and the elevation of the outdoor floor slab is lower than that of the indoor floor slab.

[0032] In this embodiment, the probability of rainwater infiltration is reduced from the basic structural layer by setting an indoor-outdoor height difference.

[0033] In some implementations, the water-stopping pier is placed on the outdoor floor slab, and the elevation of the outdoor floor slab is at least 50 mm lower than the elevation of the indoor floor slab.

[0034] In this embodiment, the reasonable indoor-outdoor height difference can not only further improve the seepage prevention performance of this utility model, but also reduce the construction difficulty.

[0035] In some implementations, the outdoor floor slab is covered with an outdoor backfill layer around the waterstop, and the indoor floor slab is covered with an indoor backfill layer that covers the fresh air duct. The elevation of the floor formed by the outdoor backfill layer is lower than the elevation of the floor formed by the indoor backfill layer, and the elevation of the floor formed by the outdoor backfill layer is lower than the elevation of the waterstop.

[0036] In this embodiment, the actual living environment also has an indoor-outdoor height difference, which further improves the seepage prevention performance of this utility model.

[0037] In some implementations, the outdoor floor slab is covered with an outdoor backfill layer around the water-stop pier, and the indoor floor slab is covered with an indoor backfill layer that covers the fresh air duct. The elevation of the floor formed by the outdoor backfill layer is lower than the elevation of the floor formed by the indoor backfill layer, and the elevation of the floor formed by the outdoor backfill layer is lower than the elevation of the water-stop pier; the elevation of the floor formed by the indoor backfill layer is lower than the elevation of the water-stop pier.

[0038] In this embodiment, the highest water-stopping pier is located between the indoor and outdoor living environments, which further reduces the probability of seepage between the indoor and outdoor living environments from a structural perspective.

[0039] In some implementations, the waterstop is a cast-in-place waterstop.

[0040] In this embodiment, the water-stop pier is constructed by cast-in-place, which reduces construction difficulty compared to simultaneous construction with the foundation structure layer. This ensures the timeliness and efficiency of the foundation structure layer construction and avoids delays in the construction period. Meanwhile, the fresh air system can be selectively installed according to the needs of different residents, improving its flexibility and adaptability.

[0041] In some implementations, the fresh air duct includes a riser, an elbow, and a horizontal duct connected in sequence. The riser and elbow are located on the outer side of the exterior wall, and the horizontal duct passes through a wall penetration hole to enter the indoor environment.

[0042] In this embodiment, the fresh air duct is designed in sections to facilitate its transportation and on-site assembly, and also to enable the replacement of the fresh air duct in sections to reduce the cost of use.

[0043] In some implementations, the fresh air duct includes a riser, a reducing pipe, an elbow, and a horizontal pipe connected in sequence. The riser, reducing pipe, and elbow are located on the outside of the exterior wall, and the horizontal pipe passes through a wall penetration hole to enter the indoor environment.

[0044] In this embodiment, the connection of fresh air ducts with different diameters can be achieved by using a variable diameter connector, which greatly improves the practicality and usability of this utility model. It also greatly improves the application flexibility and adaptability of this utility model by adapting to local conditions.

[0045] Compared with the prior art, the wall-penetrating structure of the fresh air duct provided by this utility model has the following beneficial effects:

[0046] The water-stop block is placed on the outside of the wall penetration hole and seals the hole. In this way, the upper surface of the water-stop block on the side closest to the outer wall will definitely be higher than the highest point of the wall penetration hole. Therefore, it greatly reduces the infiltration of rainwater from the external environment into the indoor environment through the wall penetration hole, effectively reducing the damage to the interior decoration caused by leakage due to the fresh air system. At the same time, because the probability of rainwater entering the indoor environment is greatly reduced, it also greatly reduces the mold growth caused by water seepage, thereby improving the living environment, protecting the interior decoration and improving the quality of life. Attached Figure Description

[0047] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0048] Figure 1 This is a longitudinal sectional view of a preferred embodiment of the present invention;

[0049] Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention.

[0050] Explanation of icon numbers:

[0051] 10. Fresh air duct, 11. Riser, 12. Reducer, 13. Elbow, 14. Horizontal pipe, 15. Fresh air insulation layer, 16. Sealing layer, 17. Waterproof membrane, 18. Waterproof coating, 19. Protective board, 20. Waterstop, 21. Sloping surface, 22. Far end face, 23. Near end face, 24. Mounting hole, 31. Outdoor floor slab, 32. Outdoor backfill layer, 33. Floor drain, 41. Exterior wall, 411. Through-wall hole, 42. Exterior wall waterproof layer, 43. Exterior wall insulation layer, 44. Indoor backfill layer, 45. Drainage pipe, 46. Indoor floor slab, 50. Fresh air unit. Detailed Implementation

[0052] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0053] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0054] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0055] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0057] In one embodiment, refer to the appendix to the specification. Figure 1 and Figure 2 A fresh air duct through-wall structure includes: a fresh air duct 10; an outer wall 41 having a through-wall hole 411; and a water-stop block 20 having an installation hole 24 connecting to the through-wall hole 411; wherein the water-stop block 20 is located on the outer side of the outer wall 41 and blocks the through-wall hole 411; the fresh air duct 10 passes through the installation hole 24 and the through-wall hole 411 from the outdoor environment into the indoor environment.

[0058] In this embodiment, the water-stop block 20 is located outside the wall penetration hole 411 and blocks the wall penetration hole 411. That is, the near end face 23 of the water-stop block 20 on the side near the outer wall 41 blocks the wall penetration hole 411. Therefore, the position of the upper surface of the near end face 23 of the water-stop block 20 on the side near the outer wall 41 is definitely not lower than the highest point of the wall penetration hole 411 on the side near the water-stop block 20. This greatly reduces the infiltration of rainwater from the external environment into the indoor environment through the wall penetration hole 411, effectively reducing the damage to the interior decoration and the discomfort of the living environment caused by leakage due to the direct horizontal penetration of the fresh air system through the outer wall. At the same time, because the probability of rainwater entering the indoor environment is greatly reduced, the mold phenomenon caused by water seepage in the indoor environment is also greatly reduced, thereby improving the living environment, protecting the interior decoration and improving the quality of life. The fresh air duct 10 will pass through the installation hole 24 set in the water-stop block 20 and the wall penetration hole 411 set in the outer wall 41 in sequence to enter the indoor environment to supply air and ensure the comfort of the indoor environment. In practical applications, the mounting hole 24 can be formed during the on-site casting of the waterstop 20 by placing the fresh air duct 10 inside it and casting it together. Alternatively, it can be formed during the prefabrication of the waterstop 20 by using a model or by casting the fresh air duct 10 onto the waterstop 20 simultaneously with the prefabrication of the waterstop 20. Of course, when the waterstop 20 is prefabricated, the joint between the waterstop 20 and the outer wall 41 is sealed by at least one of the following methods: on-site casting, setting a waterproof layer, or injecting a sealant. Specifically, the fresh air duct 10 can be partially or completely cast onto the waterstop 20. The fresh air duct 10 can completely penetrate the mounting hole 24 or be partially inserted into the mounting hole 24, but both should fall within the protection scope of this utility model.

[0059] In some embodiments, the water-stop block 20 is coated with a waterproof layer. In this embodiment, the waterproof layer is applied to the outside of the water-stop block 20 for waterproof protection, extending the service life of the water-stop block 20. It also prevents structural seepage caused by structural damage after long-term use, thus extending the service life of this invention. It is worth noting that the waterproof layer of the water-stop block 20 can be applied separately, or it can be applied during subsequent building renovations, along with the waterproofing of the equipment platform or balcony used for installing the fresh air system. The waterproofing layers of the equipment platform and balcony can be integrally formed with the waterproof layer of the water-stop block 20, or they can be applied separately.

[0060] In some implementations, refer to the appendix to the specification. Figure 1The water-stop pier 20 includes a distal end face 22 on the side away from the outer wall 41, a proximal end face 23 on the side close to the outer wall 41, and a sloping surface 21 connecting the distal end face 22 and the proximal end face 23 and located above both; the sloping surface 21 is inclined downward from the proximal end face 23 toward the distal end face 22. In this embodiment, the upper surface of the water-stop pier 20 (i.e., the sloping surface 21) is set as a slope, so that rainwater falling on the water-stop pier 20 will quickly flow down the sloping surface 21 towards the end away from the contact point between the water-stop pier 20 and the outer wall 41 under the action of gravity, which greatly reduces the possibility of rainwater flowing along the contact point between the water-stop pier 20 and the outer wall 41 to the wall penetration hole 411, and further reduces the probability of rainwater infiltrating into the indoor environment.

[0061] In some implementations, refer to the appendix to the specification. Figure 1 The angle between the slope surface 21 and the horizontal plane is not less than 10°. In this embodiment, by reasonably setting the angle between the slope surface 21 and the horizontal plane, the excellent performance of rainwater diversion is ensured while reducing the construction difficulty. In specific embodiments, the angle between the slope surface 21 and the horizontal plane can be 85°, 70°, 60°, 45°, 40°, 35°, 30°, 25°, 20°, 10°, etc. Of course, in other embodiments, the slope surface 21 can also be a horizontal plane, or a slope less than 10° but not less than 0°, such as 0°, 3°, 6°, 7°, 9°, etc., which can be set according to actual needs.

[0062] In some implementations, refer to the appendix to the specification. Figure 1 and Figure 2 A fresh air insulation layer 15 is fitted over the outside of the fresh air duct 10. In this embodiment, the fresh air insulation layer 15 is used to wrap the fresh air duct 10 to insulate it, ensuring constant temperature of the supplied air, thereby reducing the energy consumption of the fresh air system and improving indoor environmental comfort. In practical applications, after the fresh air insulation layer 15 is fitted over the outside of the fresh air duct 10, it passes through the installation hole 24 and the wall penetration hole 411 from the outdoor environment into the indoor environment. Of course, in other embodiments, the fresh air insulation layer 15 may only be fitted over the fresh air duct 10 located in the outdoor environment, while the fresh air duct 10 located in the indoor environment may or may not have the fresh air insulation layer 15.

[0063] In some embodiments, a protective sleeve is fitted over the outside of the fresh air insulation layer 15. In this embodiment, the protective sleeve is fitted over the outside of the fresh air insulation layer 15 to protect the fresh air insulation layer 15 and the fresh air duct 10, extending their service life and thus extending the service life of this utility model. In a specific embodiment, the protective sleeve can be fitted over the fresh air insulation layer 15 and then pass through the installation hole 24 and the wall penetration hole 411 from the outdoor environment into the indoor environment. Of course, in other embodiments, the protective sleeve can also be fitted only over the fresh air duct 10 located in the outdoor environment, while the fresh air duct 10 located in the indoor environment is not provided with a protective sleeve. Furthermore, the fresh air duct 10 located in the outdoor environment can also be installed on the exterior wall 41 through the protective sleeve to strengthen the installation firmness of the fresh air duct 10, improve the wind resistance of the fresh air duct 10, and extend the service life of this utility model. Of course, the installation of the fresh air duct 10 can also be carried out without reinforcement by using a protective sleeve. Instead, it can be directly installed on the exterior wall 41 with a clamp or directly pass through the wall from the outdoor environment to the indoor environment from the fresh air unit 50 without reinforcement.

[0064] In some implementations, refer to the appendix to the specification. Figure 1 The fresh air insulation layer 15 is located on the outer side of the exterior wall 41 and includes a first sub-fresh air insulation layer and a second sub-fresh air insulation layer joined together. The first sub-fresh air insulation layer is embedded within the water-stop pier 20, while the second sub-fresh air insulation layer is exposed outside the water-stop pier 20. At least one of the following materials is applied to the internal and external corners formed by the second sub-fresh air insulation layer and the water-stop pier 20: a sealing layer 16, a waterproof membrane 17, and a waterproof coating 18. In this embodiment, the fresh air insulation layer 15 is segmented according to whether it is embedded within the water-stop pier 20, reducing construction difficulty and ensuring the construction period. Simultaneously, at least one of the following materials—the sealing layer 16, the waterproof membrane 17, and the waterproof coating 18—ensures the sealing and waterproofing performance of the internal and external corners formed by the fresh air insulation layer 15 and the water-stop pier 20, thus guaranteeing air supply performance.

[0065] Specifically, refer to the instruction manual appendix. Figure 1 and Figure 2After the fresh air duct 10 is fitted into the first sub-fresh air insulation layer, it is embedded in the water-stop pier 20, and the fresh air duct 10 protrudes from the upper surface (i.e., the slope surface 21) of the water-stop pier 20. Then, a waterproof layer is applied to the outer surface of the water-stop pier 20. Then, a waterproof membrane 17 is laid on the pipe section protruding from the upper surface of the water-stop pier 20 near the water-stop pier 20 and on the upper surface of the water-stop pier 20. That is, the waterproof membrane 17 is laid at the inside and outside corners formed by the fresh air duct 10 and the water-stop pier 20 (i.e., the inside inside and outside corners formed by the second sub-fresh air insulation layer and the water-stop pier 20). Then, the waterproof membrane 17 extends along the inner surface of the second sub-fresh air insulation layer (i.e., the outer surface of the fresh air duct 10). 7. The end away from the corner is secured with galvanized steel wire (steel wire, aluminum wire, etc.), and then sealed with sealant to form a sealing layer 16. After the water storage test is verified, the second sub-fresh air insulation layer is fitted onto the section of the fresh air duct 10 that protrudes from the upper surface of the water-stop pier 20. Then, mortar is applied to the upper surface of the water-stop pier 20. The outer corner formed by the second sub-fresh air insulation layer and the upper surface of the water-stop pier 20 is rounded. Then, a waterproof coating 18 is applied to the outer side of the second sub-fresh air insulation layer. The end of the waterproof membrane 17 extending from the water-stop pier 20 and upward to the outer wall 41 is fixed to the outer wall 41 with cement nails. In other embodiments, the waterproof membrane 17 extending from the water-stop pier 20 and upward to the outer wall 41 may also only extend on the water-stop pier 20 and not extend to the outer wall 41. Of course, in other embodiments, before laying the waterproof membrane 17, a waterproof coating 18 is applied to the upper surface of the waterstop 20 and the fresh air duct 10 protruding from the waterstop 20. In specific implementation, the section of the duct protruding from the upper surface of the waterstop 20 is not less than 200mm high, the extension length of the waterproof membrane 17 along the outer surface of the fresh air duct 10 and / or the outer wall 41 is not less than 100mm-150mm, and the extension length of the waterproof coating 18 along the upper surface of the fresh air duct 10 and / or the waterstop 20 is not less than 100mm-150mm.

[0066] In other embodiments, unlike the embodiments described above, at least one of the sealing layer 16, waterproof membrane 17, and waterproof coating 18 is installed after the second sub-fresh air insulation layer is fitted over the fresh air duct 10. Specifically, the fresh air duct 10 is fitted over the first sub-fresh air insulation layer and then embedded in the water-stop pier 20, with the fresh air duct 10 protruding from the upper surface (i.e., the slope 21) of the water-stop pier 20. A waterproof layer is then applied to the outer surface of the water-stop pier 20 and to the fresh air duct 10 protruding from the upper surface of the water-stop pier 20. The second sub-fresh air insulation layer is then fitted over the fresh air duct 10. Finally, the waterproof coating 18 is applied sequentially to the outer corners formed by the second sub-fresh air insulation layer and the upper surface of the water-stop pier 20, and a waterproof membrane is laid. 17. Then, the end of the waterproof membrane 17 extending along the outer surface of the second sub-fresh air insulation layer away from the outer corner is tightened with galvanized steel wire (steel wire, aluminum wire, etc.), and then sealed with sealant to form a sealing layer 16. Then, mortar is applied to the upper surface of the waterstop 20, and a protective sleeve is installed on the second sub-fresh air insulation layer. The end of the waterproof membrane 17 extending along the waterstop 20 and upward to the outer wall 41 away from the outer corner is fixed to the outer wall 41 with cement nails. In specific implementation, the pipe section protruding from the upper surface of the waterstop 20 is not less than 300mm high, the extension length of the waterproof membrane 17 along the outer surface of the fresh air pipe 10 and / or the outer wall 41 is not less than 120mm-190mm, and the extension length of the waterproof coating 18 along the upper surface of the fresh air pipe 10 and / or the waterstop 20 is not less than 130mm-200mm. In other embodiments, the waterproof membrane 17 extending from the waterstop 20 and upward to the outer wall 41 may also extend only on the waterstop 20 without extending to the outer wall 41. Of course, in other embodiments, at least one of the sealing layer 16, waterproof membrane 17, and waterproof coating 18 is constructed before the second sub-fresh air insulation layer is fitted onto the fresh air duct 10, and the remaining at least one of the sealing layer 16, waterproof membrane 17, and waterproof coating 18 is constructed after the second sub-fresh air insulation layer is fitted onto the fresh air duct 10. These details will not be elaborated here, but all should fall within the protection scope of this utility model.

[0067] In some implementations, refer to the appendix to the specification. Figure 1 and Figure 2, a protection plate 19 is sleeved on the outer side of the fresh air duct 10. In this embodiment, the protection plate 19 protects the fresh air duct 10 from wind, rain and sunlight, and can effectively guide rainwater to flow downward in time, prolonging the service life of the utility model and reducing its use cost; it can also decorate the building facade and improve the aesthetics of the building. In practical applications, the protection plate 19 may be disposed only on the outer side of the fresh air duct 10 and arranged opposite to the outer wall 41. In other specific embodiments, the protection plate 19 may also be configured to have a cross-sectional shape of a substantially "U" shape, a square shape or the like and sleeved on the outer side of the fresh air duct 10 (the new thermal insulation layer 15, the protective pipe sleeve), with the open end of the substantially "U" shape disposed on the side close to the outer wall 41. In practical applications, the protection plate may be an aluminum plate, a steel plate or a plastic plate.

[0068] In some embodiments, with reference to the accompanying drawin Figure 1 , a gap is provided between the lower end of the protection plate 19 and the water stop pier 20. In this embodiment, a gap is provided between the lower end of the protection plate 19 and the water stop pier 20. On the one hand, the protection plate 19 can timely guide the rainwater on its upper section downward to the end of the water stop pier 20 on the side away from the outer wall 41 to be discharged from the gap, so as to keep away from the contact between the water stop pier 20 and the outer wall 41, effectively reducing the probability of rainwater falling on this contact position and further lowering the probability of rainwater penetration.

[0069] In some embodiments, with reference to the accompanying drawin Figure 1 , a gap of 5mm-30mm is provided between the lower end of the protection plate 19 and the water stop pier 20. In this embodiment, a reasonable gap size can not only improve the drainage performance of the utility model, but also decorate the building facade and improve the aesthetics of the building. In this embodiment, gaps of 5mm, 7mm, 9mm, 15mm, 20mm, 25mm and 30mm are provided between the lower end of the protection plate 19 and the water stop pier 20. In other embodiments, no gap may be provided between the lower end of the protection plate 19 and the water stop pier 20, or the provided gap may be larger than 30mm, such as 40mm, 45mm, 50mm, 80mm, 100mm, etc., which can be specifically set according to the actual situation. In practical applications, the protection plate 19 may be located directly above the water stop pier 20, and the distance between the protection plate 19 and the outer wall 41 is greater than the distance between the far end surface 22 of the water stop pier 20 on the side away from the outer wall 41 and the outer wall 41. The lower end of the protection plate 19 may be arranged to directly face the far end surface 22, that is, the protection plate 19 extends downward and is lower than the highest point of the upper surface of the water stop pier 20.

[0070] In some embodiments, with reference to the accompanying drawin Figure 1The water-stop pier 20 is installed on the outdoor floor slab 31, and the elevation of the outdoor floor slab 31 is lower than the elevation of the indoor floor slab 46. In this embodiment, by setting a height difference between the indoor and outdoor areas, the probability of rainwater infiltration is reduced from the foundation structure layer. In practical applications, a height difference is set when constructing the building foundation structure layers (outdoor floor slab 31, indoor floor slab 46, etc.) to fundamentally reduce the risk of infiltration in the foundation structure.

[0071] In some implementations, refer to the appendix to the specification. Figure 1 The water-stop pier 20 is installed on the outdoor floor slab 31, and the elevation of the outdoor floor slab 31 is at least 50mm lower than the elevation of the indoor floor slab 46. In this embodiment, a reasonable height difference between the indoor and outdoor floors not only further improves the seepage prevention performance of this utility model, but also reduces the construction difficulty. In a specific embodiment, the height difference between the outdoor floor slab 31 and the indoor floor slab 46 is at least 100mm. Further, the height difference between the outdoor floor slab 31 and the indoor floor slab 46 is no greater than 500mm. The height difference between the outdoor floor slab 31 and the indoor floor slab 46 should not be too low or too high. If it is too low, the risk of seepage will increase; if it is too high, it will increase the installation cost of the fresh air system and the construction difficulty of the foundation structure.

[0072] In some implementations, refer to the appendix to the specification. Figure 1 and Figure 2 An outdoor backfill layer 32 is laid around the water-stop pier 20 on the outdoor floor slab 31, and an indoor backfill layer 44 covering the fresh air duct 10 is laid on the indoor floor slab 46. The elevation of the floor formed by the outdoor backfill layer 32 is lower than the elevation of the floor formed by the indoor backfill layer 44, and the elevation of the floor formed by the outdoor backfill layer 32 is lower than the elevation of the water-stop pier 20. In practical applications, some buildings are delivered as bare shells or residents may renovate them. Therefore, the height difference between the floor formed by the outdoor backfill layer 32, the floor formed by the indoor backfill layer 44, and the outdoor floor slab 31 and indoor floor slab 46 of the foundation structure may be the same or different. Therefore, the existence of indoor and outdoor height differences in the actual living environment further improves the seepage prevention performance of this utility model. Moreover, the indoor fresh air duct 10 is concealed by the indoor backfill layer 44, improving the indoor aesthetics and comfort.

[0073] In some implementations, refer to the appendix to the specification. Figure 1 and Figure 2An outdoor backfill layer 32 is laid around the water-stop pier 20 on the outdoor floor slab 31, and an indoor backfill layer 44 covering the fresh air duct 10 is provided on the indoor floor slab 46. The elevation of the floor formed by the outdoor backfill layer 32 is lower than the elevation of the floor formed by the indoor backfill layer 44, and the elevation of the floor formed by the outdoor backfill layer 32 is lower than the elevation of the water-stop pier 20; the elevation of the floor formed by the indoor backfill layer 44 is lower than the elevation of the water-stop pier 20. In this embodiment, the water-stop pier 20, with the highest elevation (i.e., the elevation of the highest point on the upper surface of the water-stop pier 20 is higher than the elevation of the floor formed by the outdoor backfill layer 32 and the elevation of the floor formed by the indoor backfill layer 44), is located between the indoor and outdoor living environments, which further reduces the probability of seepage between the indoor and outdoor living environments from a structural perspective.

[0074] In some embodiments, the outdoor backfill layer 32 and / or the outdoor floor slab 31 are provided with floor drains 33, which can discharge rainwater into the drainage pipe 45 in a timely manner, minimizing the time that rainwater stays in the water-stop pier 20 and further reducing the probability of infiltration. In practical applications, the fresh air unit 50 can be suspended on the outside of the exterior wall 41 or placed on the outdoor floor slab 31.

[0075] In some embodiments, to reduce energy consumption while maintaining a constant indoor temperature environment, an exterior wall insulation layer 43 is laid on the outer side of the exterior wall 41. More preferably, an exterior wall waterproof layer 42 is provided between the exterior wall insulation layer 43 and the exterior wall 41. More preferably, an exterior finishing layer is laid on the outer side of the exterior wall insulation layer 43 to decorate the building while protecting the exterior wall insulation layer 43 and extending its service life.

[0076] In some implementations, refer to the appendix to the specification. Figure 1 and Figure 2 The water-stop pier 20 is a cast-in-place water-stop pier. In this embodiment, the cast-in-place water-stop pier 20 does not need to be constructed simultaneously with the foundation structure layer, reducing construction difficulty, ensuring the timeliness and efficiency of the foundation structure layer construction, avoiding delays in the construction period, and allowing the fresh air system to be selectively installed according to the needs of different residents, improving its flexibility and adaptability. In practical applications, after the fresh air duct 10 or the fresh air duct 10 wrapped with the fresh air insulation layer 15 enters the indoor environment through the wall penetration hole 411 from the outdoor environment, the water-stop pier 20 is cast-in-place on the outdoor floor slab 31, and the installation hole 24 is formed simultaneously. Of course, in other embodiments, the water-stop pier 20 can also be a prefabricated water-stop pier or can be formed together with the foundation structure or formed sequentially. The mounting hole 24 of the water-stop pier 20 can be formed together with the water-stop pier 20, that is, it is formed due to the presence of the fresh air duct 10 when the water-stop pier 20 is poured. Of course, it can also be formed by a model that is compatible with the fresh air duct 10 during the prefabrication process. In other embodiments, the prefabricated water-stop pier 20 can also have the fresh air duct 10 itself.

[0077] In some implementations, refer to the appendix to the specification. Figure 1The fresh air duct 10 includes a riser 11, an elbow 13, and a horizontal duct 14 connected in sequence. The riser 11 and elbow 13 are located on the outer side of the exterior wall 41, and the horizontal duct 14 passes through the wall penetration hole 411 to enter the indoor environment. In this embodiment, the fresh air duct 10 is designed in sections to facilitate its transportation and on-site assembly, and also to allow for segmented replacement of the fresh air duct 10 to reduce operating costs. In practical applications, in order to reduce the installation space of the fresh air system, the fresh air duct from the fresh air unit 50 generally extends from top to bottom into the riser 11 located on the outer side, then bends to become the horizontal duct 14, which passes through the wall penetration hole 411 to enter the indoor environment. If an "L"-shaped fresh air duct 10 is used directly, it is difficult to install, has high manufacturing costs, and is difficult to transport. In this embodiment, the riser 11 and the horizontal duct 14 are connected and installed through a detachable elbow 13, which facilitates disassembly and replacement, thereby reducing manufacturing and operating costs, and making it easier to replace and maintain later. Of course, in practical applications, the fresh air duct 10 can also be a two-section spliced ​​section, that is, one of the vertical pipe 11 or the horizontal pipe 14 is integrally formed with the elbow 13, and the other of the vertical pipe 11 or the horizontal pipe 14 is formed separately, and then installation can achieve a similar effect, but it should also fall within the protection scope of this utility model.

[0078] In some implementations, refer to the appendix to the specification. Figure 1 The fresh air duct 10 includes a riser 11, a reducing pipe 12, an elbow 13, and a horizontal pipe 14 connected in sequence. The riser 11, the reducing pipe 12, and the elbow 13 are located on the outer side of the exterior wall 41, and the horizontal pipe 14 passes through the wall penetration 411 to enter the indoor environment. In this embodiment, the reducing pipe 12 can connect fresh air ducts 10 with different diameters, greatly improving the practicality and usability of this utility model, and greatly enhancing its application flexibility and adaptability to local conditions. When the diameter of at least one of the riser 11 and the horizontal pipe 14 is different from the diameter of the elbow 13, they can be connected and installed through the reducing pipe 12. It is worth noting that the riser 11 and the horizontal pipe 14 can be integrally formed or segmented and detachable pipes.

[0079] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A new type of through-wall ventilation duct structure, characterized in that, include: Fresh air duct (10); The exterior wall (41) has a through-wall hole (411). And a water-stop pier (20), which has an installation hole (24) connecting the through hole (411). The water-stopping block (20) is located on the outer side of the outer wall (41) and blocks the through hole (411). The fresh air duct (10) passes through the installation hole (24) and the wall penetration hole (411) from the outdoor environment into the indoor environment.

2. The wall-penetrating structure of the fresh air duct according to claim 1, characterized in that, The waterstop (20) is coated with a waterproof layer; and / or, The water-stop pier (20) includes a far end face (22) away from the outer wall (41), a near end face (23) close to the outer wall (41), and a slope surface (21) connecting the far end face (22) and the near end face (23) and located above both; the slope surface (21) is inclined downward from the near end face (23) toward the far end face (22).

3. The wall-penetrating structure of the fresh air duct according to claim 2, characterized in that, The angle between the slope surface (21) of the water-stopping pier (20) and the horizontal plane is not less than 10°.

4. The wall-penetrating structure of the fresh air duct according to claim 1, characterized in that, The fresh air duct (10) is fitted with a fresh air insulation layer (15) on the outside.

5. The wall-penetrating structure of the fresh air duct according to claim 4, characterized in that, The outer side of the fresh air insulation layer (15) is fitted with a protective sleeve; and / or, The fresh air insulation layer (15) is located on the outer side of the outer wall (41), and includes a first sub-fresh air insulation layer and a second sub-fresh air insulation layer spliced ​​together; wherein, the first sub-fresh air insulation layer is built into the water-stop block (20), the second sub-fresh air insulation layer is exposed on the water-stop block (20), and at least one of the following is laid at the corner formed by the second sub-fresh air insulation layer and the water-stop block (20): sealing layer (16), waterproof membrane (17), and waterproof coating (18).

6. The wall-penetrating structure of the fresh air duct according to any one of claims 1-5, characterized in that, The fresh air duct (10) is fitted with a protective plate (19) on the outside.

7. The wall-penetrating structure of the fresh air duct according to claim 6, characterized in that, A gap is provided between the lower end of the protective plate (19) and the water-stop pier (20); and / or, A gap of 5mm-30mm is provided between the lower end of the protective plate (19) and the water-stop block (20).

8. The wall-penetrating structure of the fresh air duct according to any one of claims 1-5, characterized in that, The water-stopping pier (20) is installed on the outdoor floor slab (31), the elevation of which is lower than the elevation of the indoor floor slab (46); and / or, The water-stopping block (20) is installed on the outdoor floor slab (31), and the elevation of the outdoor floor slab (31) is not less than 50 mm lower than the elevation of the indoor floor slab (46).

9. The wall-penetrating structure of the fresh air duct according to claim 8, characterized in that, The outdoor floor slab (31) is surrounded by an outdoor backfill layer (32) around the waterstop (20), and the indoor floor slab (46) is covered by an indoor backfill layer (44) covering the fresh air duct (10). The elevation of the floor formed by the outdoor backfill layer (32) is lower than the elevation of the floor formed by the indoor backfill layer (44), and the elevation of the floor formed by the outdoor backfill layer (32) is lower than the elevation of the waterstop (20); and / or, The elevation of the floor formed by the indoor backfill layer (44) is lower than the elevation of the waterstop block (20).

10. The wall-penetrating structure of the fresh air duct according to any one of claims 1-5, characterized in that, The waterstop pier (20) is a cast-in-place waterstop pier; and / or, The fresh air duct (10) includes a riser (11), an elbow (13), and a horizontal duct (14) connected in sequence. The riser (11) and the elbow (13) are located in the external environment of the outer wall (41), and the horizontal duct (14) passes through the wall penetration hole (411) to enter the indoor environment; or, The fresh air duct (10) includes a riser (11), a reducing pipe (12), an elbow (13) and a horizontal pipe (14) connected in sequence. The riser (11), the reducing pipe (12) and the elbow (13) are located in the outer environment of the outer wall (41), and the horizontal pipe (14) enters the indoor environment through the wall hole (411).

Images