High-quality sealing structure of passive building through-wall pipe and construction method

Abstract

The application discloses a high-quality sealing structure of a passive building through-wall pipeline and a construction method, which comprises the following steps: a pipe body one is fixedly installed on a steel bar net of a wall body, a bearing platform is arranged on the inner side of the middle part of the pipe body one, an air separation film and a connecting structure penetrating through the air separation film are installed on the bearing platform, a plugging piece is installed on the end inner wall of the pipe body one, a water stop ring, a glue injection port and an exhaust port are arranged on the outer wall of the pipe body one, one-way conduction structures are installed at the glue injection port and the exhaust port, and threaded plugs are installed at the glue injection port and the exhaust port; two groups of pipe body twos are arranged on the corresponding ends of the pipe body one, limit rings are arranged on the outer wall of the pipe body two, air separation films are installed in the limit rings, the end part of the pipe body two is suitable for being connected with the connecting structure and pressing the air separation film, and the injected glue is suitable for extruding the plugging piece outward and pressing and fixing the plugging piece in the limit ring. The waterproof, heat preservation and air tightness effects are ensured through the sealing structures.

Description

Technical Field

[0001] This invention relates to passive building construction technology, specifically to a high-quality sealing structure and construction method for through-wall pipes in passive buildings. Background Technology

[0002] Passive houses are integrated buildings using various technologies that maximize the use of renewable energy to ensure that the total primary energy consumption does not exceed 120 kWh / (m²·year). This low energy consumption standard is achieved through highly insulated and soundproof building walls and renewable energy sources; therefore, passive houses require excellent insulation and airtightness.

[0003] When pipes pass through reinforced concrete shear walls in passive buildings, the common practice is to pre-drill holes in the wall, install sleeves, and then place a polyurethane insulation layer between the sleeve and the pipe. Examples include CN207796290U-Precast Direct-Buried Insulated Pipe Waterproof Sleeve technology. A common feature of these methods is that pipe installation is performed after the wall structure is completed. This leads to complex operations, poor integrity between the two layers of structure, and relatively poor waterproofing, insulation, and airtightness. Furthermore, performing waterproofing, insulation, and airtightness construction on pipes penetrating the wall after it has been formed is cumbersome and results in poor sealing. Summary of the Invention

[0004] The technical problem to be solved by this invention is: how to solve the problem of poor overall integrity and poor sealing effect caused by the structure of drilling holes first and then inserting pipes for filling.

[0005] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this invention, which adopts the following technical solution:

[0006] High-quality sealing structure for through-wall pipes in passive buildings, including:

[0007] Pipe body one is fixedly installed on the steel mesh of the wall. A support platform is set on the inner side of the middle of pipe body one. An air-barrier membrane and a connecting structure that penetrates the air-barrier membrane are installed on the support platform. A sealing component is installed on the inner wall of the end of pipe body one. A water-stop ring, an injection port and an exhaust port are set on the outer wall of pipe body one. A one-way conduction structure is installed at both the exhaust port and the injection port. The one-way conduction structure includes two thin films that are electrostatically attracted to each other. The one-way conduction structure of the injection port is suitable for injecting glue into the interior of pipe body one in one direction. The one-way conduction structure of the exhaust port is suitable for the external discharge of internal gas and reverse sealing during glue injection. Threaded plugs are installed at both the injection port and the exhaust port.

[0008] Pipe body two has two sets of pipes installed in the corresponding ends of pipe body one. A limit ring is provided on the outer wall of pipe body two. An air-tight membrane is installed inside the limit ring. The end of pipe body two is suitable for connecting with the connecting structure and pressing the air-tight membrane.

[0009] The injected adhesive is suitable for pressing the sealing component outward and fixing it within the limiting ring.

[0010] Preferably, an installation ring is provided on the inner wall of the first tube body, and an air-tight membrane is installed inside the installation ring. The sealing component includes an installation component and a rubber sheet. The installation component is suitable for sealing the rubber sheet inside the installation ring. The rubber sheet has a frustum-shaped structure and is provided with a sealing ring. The sealing ring is suitable for entering the limiting ring after glue injection and sealingly connecting with the second tube body.

[0011] Preferably, a snap-fit ​​ring is provided on the outer wall of the second pipe body. The mounting component includes multiple snap-fit ​​bodies arranged in a circumferential ring and a support strip suitable for connecting two adjacent snap-fit ​​bodies. The snap-fit ​​body includes an inner support body, a middle support body, and an outer support body. The two ends of the middle support body are respectively connected and fixed to the inner support body and the outer support body. The middle support body is suitable for adjusting the distance between the inner support body and the outer support body. The inner support body is suitable for installation in the snap-fit ​​ring. A sliding groove is provided in the outer support body. A pin is movably installed in the sliding groove and installed at the end of the support strip.

[0012] Preferably, the central support includes an adjusting sleeve and screws located at both ends of the adjusting sleeve. The two screws are respectively connected and fixed to the inner support and the outer support. The adjusting sleeve is adapted to adjust the distance between the two screws.

[0013] Preferably, the connection structure includes a connector installed on the bearing platform, and the two ends of the pipe body are provided with connection grooves suitable for connecting the connector. The end of the connector that protrudes from the air-barrier membrane is provided with a large head. The end of the connection groove is provided with a large connection opening and a small connection opening. The large connection opening and the large head are adapted to each other, and the small connection opening and the connector are adapted to each other. The inner side of the connection groove is provided with a ramp structure. The ramp structure is suitable for the large head to enter the large connection opening and drive the second pipe body to gradually approach the bearing platform and press the air-barrier membrane.

[0014] Preferably, the cross-section of the limiting ring is narrow on the outside and wide on the inside, and the height of the vent is higher than the height of the glue injection port.

[0015] Preferably, each of the internal supports is provided with guide holes arranged parallel to the two axes of the tube, and a guide rod is installed in each guide hole. The end of the guide rod is threadedly connected to a sliding sleeve. A spring is fitted on the outside of the guide rod between the sliding sleeve and the internal support. The sliding sleeve is adapted to push the sealing ring from the outside to the inside.

[0016] Preferably, the snap ring is provided with a groove suitable for installing the internal support.

[0017] Preferably, a hook is provided on the outer side of the tube body, and the length of the hook is adjustable.

[0018] The construction method for high-quality sealing structure of through-wall pipes in passive buildings is as follows:

[0019] Step 1: Pipe installation

[0020] After the steel mesh is tied, the first pipe body is installed through the hook body. There are at least three hook bodies, and at least two sets are arranged along the axial direction. The length of the hook body is adjusted and connected to the nearest steel bar, and the first pipe body is fixed at the design position by tie wire or welding. An air-tight membrane is installed on the installation ring on the first pipe body. A sealing gasket and an air-tight membrane are installed on the bearing platform. The large head of the connector is exposed on the outside of the air-tight membrane.

[0021] Step Two: Assembly and Installation of Pipe Body Two

[0022] A sliding sleeve and rubber sheet are fitted on the outside of the second pipe body. The sealing ring is located on the side of the limiting ring near the bearing platform. The sliding sleeve fits against the outside of the sealing ring. The internal support is installed in the groove on the snap ring. The limiting ring and the sliding sleeve are pressed together and the guide rod and the sliding sleeve are threadedly connected and fixed.

[0023] Pipe body two is inserted and installed along the axis of pipe body one. The large head and the connecting large opening are aligned and rotated at a certain angle. The end of pipe body two is pressed against the air-proof membrane on the bearing platform. At the same time, the snap-fit ​​body and the mounting ring are coplanar. By adjusting the adjusting screw of the middle support body, the external support body is gradually moved outward and the support bar moves synchronously. The rubber skin is pressed into the mounting ring. An air-proof membrane is installed in the limiting ring.

[0024] Step 3: Seal with adhesive

[0025] Pressureless glue injection: The glue injection port is connected to the glue injection equipment to inject glue into the interior. During glue injection, the diaphragm of the vent is located on the outside of the first tube body. Glue is gradually injected into the interior to fill the internal cavity. The cavity is surrounded by the outer wall of the rubber skin, the inner wall of the first tube body, the outer wall of the second tube body, and the air-proof membrane on the support platform. When polyurethane glue overflows from the diaphragm of the vent, the glue inside is cleaned and pushed back into the first tube body, and the vent is sealed with a threaded plug.

[0026] Pressure injection: Continue to slowly inject the glue into the inside. The internal polyurethane glue will gradually push the rubber skin outward. Under the action of the sliding sleeve, the sealing ring is forced to move outward gradually. When it moves to the limiting ring, the tension of the sealing ring is released and it enters the limiting ring and expands into the limiting ring and presses the air barrier membrane at that point. Stop the glue injection.

[0027] Step 4: Installation of Insulation Layer and Formwork

[0028] Install the insulation layer: Install the insulation layer on the outside of the steel mesh, and make two holes on the insulation layer corresponding to the two outer pipes, and apply sealant to the openings;

[0029] Template installation: Templates are installed on the outside of the insulation layer and inside the steel mesh. The inner and outer templates are fixed by tie bolts. Openings are reserved on the inner and outer templates for the pipe body to protrude. Sealing rings are installed at the openings and are bolted to the templates. The sealing rings are suitable for preventing concrete mortar from leaking through the openings. One end of the pipe body is located inside the steel reinforcement protective layer.

[0030] Step 5: Pouring and Formwork Removal

[0031] Concrete is poured and vibrated simultaneously. Once the concrete reaches the design strength, the inner and outer formwork is removed.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] This invention employs a double-layer sealing process before hole drilling. The sealing cavity is filled with adhesive, utilizing the strong adhesion and stability of the injected polyurethane adhesive. The injected adhesive pushes the rubber sheet outwards, causing the sealing ring to tighten within the limiting ring. This, combined with an air-tight membrane (preferably a waterproof air-tight membrane), ensures waterproof, heat-insulating, and airtight properties, improving the overall integrity of the double-layer structure and guaranteeing a tight seal. Multiple air-tight membranes and corresponding structural compression complete a multi-layer sealing structure, ensuring waterproof, heat-insulating, and airtight effects. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0036] Figure 3 This is a cross-sectional view of the overall structure of the present invention;

[0037] Figure 4 This is a cross-sectional view of the second tube in this invention;

[0038] Figure 5 This is a side view of the two ends of the tube in this invention;

[0039] Figure 6 This is a schematic diagram of the overall structure of the connecting grooves at both ends of the tube body in this invention;

[0040] Figure 7 This is a construction diagram of the through-wall pipe sealing structure in this invention;

[0041] Figure 8 This is a schematic diagram of the structure of the glue injection port and vent port after glue injection in this invention;

[0042] Figure 9 This is a schematic diagram of the structure of the glue injection port and vent port before pressure glue injection in this invention;

[0043] Figure 10 This is a cross-sectional view of the overall structure of the tube body of the present invention;

[0044] Figure 11 This is a side view of the mounting component of the present invention;

[0045] Figure 12 This is a structural diagram of the support strip and the external support structure.

[0046] In the picture:

[0047] 10. Pipe body 1; 11. Foundation; 12. Waterstop ring; 13. Injection port; 14. Vent; 15. One-way flow structure; 16. Threaded plug; 17. Connection structure; 171. Connector; 18. Mounting ring;

[0048] 20. Pipe body two; 21. Limiting ring; 22. Snap-fit ​​ring; 23. Connecting groove; 231. Large connecting opening; 232. Small connecting opening; 233. Sloping structure;

[0049] 31. Support bar; 32. Internal support body; 321. Guide hole; 322. Guide rod; 323. Sliding sleeve; 324. Spring; 33. Middle support body; 331. Adjusting screw sleeve; 332. Screw; 34. External support body; 35. Slide groove;

[0050] 40. Rubber sheet; 41. Sealing ring;

[0051] 50. Hook and hanger. Detailed Implementation

[0052] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0053] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 invention 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 invention.

[0054] Example 1, a high-quality sealing structure for through-wall pipes in passive buildings, comprising:

[0055] Pipe body 10 has a hook 50 on its outer side. The length of the hook 50 is adjustable. Pipe body 10 is fixedly installed on the nearest steel bar in the steel mesh in the wall through the hook 50. Pipe body 10 has a support platform 11 on its inner side in the middle. A vapor barrier membrane and a connecting structure 17 that penetrates the vapor barrier membrane are installed on the support platform 11. The connecting structure 17 includes a connector 171 installed on the support platform 11. The end of the connector 171 that protrudes from the vapor barrier membrane is provided with a large head. A mounting ring 18 is provided on the inner wall of pipe body 10 near the port, and a vapor barrier membrane is installed inside the mounting ring 18.

[0056] A sealing component is installed on the inner wall of the end of the pipe body 10. The sealing component includes an installation component and a rubber sheet 40. The installation component is suitable for sealing the installation of the rubber sheet 40 inside the installation ring 18. The rubber sheet 40 has a frustum-shaped structure and is provided with a sealing ring 41. The installation component includes multiple snap-fit ​​bodies arranged in a circumferential ring inside the snap-fit ​​ring 22 and a support strip 31 suitable for connecting two adjacent snap-fit ​​bodies. The snap-fit ​​body includes an inner support body 32, a middle support body 33, and an outer support body 34. The two ends of the middle support body 33 are respectively connected and fixed to the inner support body 32 and the outer support body 34. The middle support body 33 is suitable for adjusting the distance between the inner support body 32 and the outer support body 34. The middle support body 33 includes an adjusting screw sleeve 331 and screws 332 located at both ends of the adjusting screw sleeve 331. The two screws 332 are respectively connected and fixed to the inner support body 32 and the outer support body 34. The adjusting screw sleeve 331 is suitable for adjusting the distance between the two screws 332.

[0057] The outer wall of the pipe body 10 is provided with a water-stop ring 12, an injection port 13, and an exhaust port 14. Both the exhaust port 14 and the injection port 13 are equipped with a one-way flow structure 15, which includes two thin films that are electrostatically attracted to each other. The one-way flow structure 15 of the injection port 13 is suitable for unidirectional injection of adhesive into the pipe body 10, and the one-way flow structure 15 of the exhaust port 14 is suitable for the outward discharge of internal gas and reverse sealing during adhesive injection. Threaded plugs 16 are installed at both the injection port 13 and the exhaust port 14. The height of the exhaust port 14 is higher than the height of the injection port 13.

[0058] Pipe body 20 has two sets of pipes installed in corresponding ends of pipe body 10. A limiting ring 21 is provided on the outer wall of pipe body 20. An air-tight membrane is installed inside the limiting ring 21. The cross-section of the limiting ring 21 is narrow on the outside and wide on the inside. A connecting groove 23 suitable for connecting the connector 171 is provided at the end of pipe body 20. A large connecting opening 231 and a small connecting opening 232 are provided at the end of the connecting groove 23. The large connecting opening 231 is adapted to the large head, and the small connecting opening 232 is adapted to the connector 171. A ramp structure 233 is provided on the inner side of the connecting groove 23. The ramp structure 233 is suitable for the large head entering the large connecting opening 231 to act and drive pipe body 20 to gradually approach the support platform 11 and press the air-tight membrane.

[0059] A snap-fit ​​ring 22 is provided on the outer wall of the tube body 20. The snap-fit ​​ring 22 is provided with a groove suitable for installing the internal support body 32. The internal support body 32 is suitable for installation in the groove of the snap-fit ​​ring 22. A sliding groove 35 is provided in the outer support body 34. A pin is movably installed in the sliding groove 35. The pin is installed at the end of the support bar 31.

[0060] The injected adhesive is suitable for pressing the sealing element outward and pressing the sealing ring 41 of the rubber skin 40 of the sealing element into the limiting ring 21. The sealing ring 41 is suitable for entering the limiting ring 21 after the adhesive is injected and sealingly connecting with the tube body 20.

[0061] When using:

[0062] First, the pipe body 10 and the nearest steel bar are fixed and installed by adjusting the length of the hook body 50. The fixing and installation method can be welding or wire binding. There are at least three hook bodies 50 in the circumference and at least two sets along the axial direction.

[0063] Next, a sliding sleeve 323 and a rubber sheet 40 are fitted on the outside of the second pipe body 20. The sealing ring 41 is moved to the side of the limiting ring 21 near the bearing platform 11. The internal support 32 is installed in the groove on the snap ring 22. The limiting ring 21 is pressed. The second pipe body 20 is inserted and installed along the axial direction of the first pipe body 10. The large head and the connecting large port 231 are aligned and rotated at a certain angle. The end of the second pipe body 20 is pressed against the air-proof membrane on the bearing platform 11.

[0064] At this time, the snap-fit ​​body and the mounting ring 18 are coplanar. By adjusting the adjusting screw sleeve 331 of the middle support body 33, the outer support body 34 is gradually moved outward and the support bar 31 moves synchronously, pressing the rubber skin 40 into the mounting ring 18. An air-proof membrane is installed in the limiting ring 21.

[0065] Secondly, the glue injection port 13 is connected to the glue injection equipment to quickly inject glue into the interior. During glue injection, the diaphragm of the exhaust port 14 is located on the outside of the tube body 10. The glue is gradually injected into the interior to fill the internal cavity. The cavity is surrounded by the outer wall of the rubber skin 40, the inner wall of the tube body 10, the outer wall of the tube body 20, and the air-proof membrane on the support 11. When polyurethane glue overflows from the diaphragm of the exhaust port 14, the glue inside is cleaned and pushed back into the tube body 10. The threaded plug 16 seals the exhaust port 14.

[0066] Slowly inject adhesive into the interior. The internal polyurethane adhesive will gradually push the rubber skin 40 outward. The sealing ring 41 will be compressed and gradually move outward. When it moves to the limiting ring 21, the tension of the sealing ring 41 will be released and it will enter the limiting ring 21 and expand into the limiting ring 21 and press the air barrier membrane at that point. Stop the adhesive injection and seal the adhesive injection port 13 with the threaded plug 16.

[0067] Install the insulation layer: Install the insulation layer on the outside of the steel mesh, and make a hole on the insulation layer corresponding to the outer pipe body at position 20. Apply sealant to the opening.

[0068] Template installation: Templates are installed on the outside of the insulation layer and inside the steel mesh. The inner and outer templates are fixed by tie bolts. Openings are reserved on the inner and outer templates for the pipe body 20 to protrude. Sealing rings are installed at the openings. The sealing rings are installed on the templates by bolts. The sealing rings are suitable for preventing concrete mortar from seeping through the openings. The end of the pipe body 10 is located inside the steel reinforcement protective layer.

[0069] Concrete is poured and vibrated simultaneously. Once the concrete reaches the design strength, the inner and outer formwork is removed.

[0070] Example 2, based on the above example, is improved as follows: each of the internal support bodies 32 is provided with a guide hole 321 arranged parallel to the axis of the tube body 20, and a guide rod 322 is installed in each guide hole 321. The end of the guide rod 322 is threadedly connected to a sliding sleeve 323. A spring 324 is fitted on the outside of the guide rod 322 between the sliding sleeve 323 and the internal support body 32. The sliding sleeve 323 is adapted to push the sealing ring 41 from the outside to the inside.

[0071] The sliding sleeve 323 can limit the position of the sealing ring 41 during glue injection, preventing it from deforming or misaligning and causing glue leakage. At the same time, the rear side of the sliding sleeve 323 is equipped with a flexible support, which allows it to move outward synchronously under a certain pressure, ensuring the structural stability of the sealing ring 41 during the outward movement.

[0072] The construction method for high-quality sealing structure of through-wall pipes in passive buildings is as follows:

[0073] Step 1: Pipe body 10 installation

[0074] After the steel mesh is tied, the pipe body 10 is installed through the hook body 50. There are at least three hook bodies 50, and at least two sets are arranged along the axial direction. The pipe body 10 is fixed at the design position by adjusting the length of the hook body 50 and connecting to the nearest steel bar, and by tying wire or welding. An air-tight membrane is installed on the mounting ring 18 on the pipe body 10. A sealing gasket and an air-tight membrane are installed on the bearing platform 11. The large head of the connector 171 is exposed on the outside of the air-tight membrane.

[0075] Step 2: Assembly and installation of pipe body 220

[0076] Sliding sleeve 323 and rubber skin 40 are fitted on the outside of the pipe body 20. Sealing ring 41 is located on the side of limiting ring 21 near the bearing 11. Sliding sleeve 323 fits against the outside of sealing ring 41. Internal support body 32 is installed in the groove on snap ring 22. Limiting ring 21 and sliding sleeve 323 are pressed together and guide rod 322 and sliding sleeve 323 are threadedly connected and fixed.

[0077] Pipe body 20 is inserted and installed along the axis of pipe body 10. The large head and the connecting large port 231 are aligned and rotated at a certain angle. The end of pipe body 20 is pressed against the air-proof membrane on the support platform 11. At the same time, the snap-fit ​​body and the mounting ring 18 are coplanar. By adjusting the adjusting screw sleeve 331 of the middle support body 33, the outer support body 34 is gradually moved outward and the support bar 31 moves synchronously. The rubber skin 40 is pressed into the mounting ring 18. An air-proof membrane is installed in the limiting ring 21.

[0078] Step 3: Seal with adhesive

[0079] Pressureless glue injection: Glue injection equipment is connected to the glue injection port 13 to inject glue into the interior. During glue injection, the diaphragm of the vent port 14 is located on the outside of the tube body 10. Glue is gradually injected into the interior to fill the internal cavity. The cavity is surrounded by the outer wall of the rubber skin 40, the inner wall of the tube body 10, the outer wall of the tube body 20, and the air-proof membrane on the support 11. When polyurethane glue overflows from the diaphragm of the vent port 14, the glue inside is cleaned and pushed back into the tube body 10, and the vent port 14 is sealed by the threaded plug 16.

[0080] Pressure injection: Slowly inject the glue into the inside. The internal polyurethane glue will gradually push the rubber skin 40 outward. Under the action of the sliding sleeve 323, the sealing ring 41 is forced to move outward. When it moves to the limiting ring 21, the tension of the sealing ring 41 is released and it enters the limiting ring 21 and expands into the limiting ring 21 and presses the air barrier membrane at that point. The glue injection stops and the glue injection port 13 is sealed by the threaded plug 16.

[0081] Step 4: Installation of Insulation Layer and Formwork

[0082] Install the insulation layer: Install the insulation layer on the outside of the steel mesh, and make a hole on the insulation layer corresponding to the outer pipe body at position 20. Apply sealant to the opening.

[0083] Template installation: Templates are installed on the outside of the insulation layer and inside the steel mesh. The inner and outer templates are fixed by tie bolts. Openings are reserved on the inner and outer templates for the pipe body 20 to protrude. Sealing rings are installed at the openings. The sealing rings are installed on the templates by bolts. The sealing rings are suitable for preventing concrete mortar from seeping through the openings. The end of the pipe body 10 is located inside the steel reinforcement protective layer.

[0084] Step 5: Pouring and Formwork Removal

[0085] Concrete is poured and vibrated simultaneously. Once the concrete reaches the design strength, the inner and outer formwork is removed.

[0086] This invention employs a double-layer sealing process before hole drilling, using polyurethane injection to fill the sealing cavity. Utilizing the strong adhesion and stability of the injected polyurethane adhesive, the rubber sheet is pushed outwards by the injected adhesive, causing the sealing ring to tighten within the limiting ring. This, combined with an airtight membrane (preferably a waterproof airtight membrane), ensures waterproof, heat-insulating, and airtight properties, improving the overall integrity of the double-layer structure and guaranteeing a tight seal. Multiple airtight membranes and corresponding structural compression complete a multi-layer sealing structure, ensuring waterproof, heat-insulating, and airtight effects.

[0087] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and inventive concepts of the present invention should all be covered within the scope of protection of the present invention.

Claims

1. A high-quality sealing structure for through-wall pipes in passive buildings, characterized in that: include: Pipe body 1 (10) is fixedly installed on the steel mesh of the wall. A support platform (11) is provided on the inner side of the middle part of pipe body 1 (10). An air-proof membrane and a connecting structure (17) penetrating the air-proof membrane are installed on the support platform (11). A sealing component is installed on the inner wall of the end of pipe body 1 (10). A water-stop ring (12), an injection port (13) and an exhaust port (14) are provided on the outer ring wall of pipe body 1 (10). A one-way conduction structure (15) is installed at both the exhaust port (14) and the injection port (13). The one-way conduction structure (15) includes two thin films that are electrostatically attracted to each other. The one-way conduction structure (15) of the injection port (13) is suitable for injecting glue into the interior of pipe body 1 (10) in one direction. The one-way conduction structure (15) of the exhaust port (14) is suitable for the external discharge of internal gas and reverse sealing during glue injection. Threaded plugs (16) are installed at both the injection port (13) and the exhaust port (14). Pipe body two (20) has two sets of pipe body two (20) respectively installed in the corresponding ends of pipe body one (10). A limit ring (21) is provided on the outer wall of pipe body two (20). An air-tight membrane is installed in the limit ring (21). The end of pipe body two (20) is suitable to be connected to the connecting structure (17) and press the air-tight membrane. The injected adhesive is suitable for pressing the sealing component outward and pressing it into the limiting ring (21); An installation ring (18) is provided on the inner wall of the first tube (10), and an air-tight membrane is installed inside the installation ring (18). The sealing component includes an installation component and a rubber sheet (40). The installation component is suitable for sealing the installation of the rubber sheet (40) inside the installation ring (18). The rubber sheet (40) has a frustum-shaped structure and is provided with a sealing ring (41). The sealing ring (41) is suitable for entering the limiting ring (21) after the glue is injected and sealingly connecting with the second tube (20).

2. The high-quality sealing structure for passive building through-wall pipes according to claim 1, characterized in that, The outer wall of the tube body 2 (20) is provided with a snap ring (22). The mounting component includes multiple snap bodies arranged in a circumferential ring inside the snap ring (22) and a support strip (31) suitable for connecting two adjacent snap bodies. The snap body includes an inner support body (32), a middle support body (33) and an outer support body (34). The two ends of the middle support body (33) are respectively connected and fixed to the inner support body (32) and the outer support body (34). The middle support body (33) is suitable for adjusting the distance between the inner support body (32) and the outer support body (34). The inner support body (32) is suitable for being installed inside the snap ring (22). The outer support body (34) is provided with a groove (35). A pin is movably installed in the groove (35). The pin is installed at the end of the support strip (31).

3. The high-quality sealing structure for passive building through-wall pipes according to claim 2, characterized in that, The central support (33) includes an adjusting sleeve (331) and screws (332) located at both ends of the adjusting sleeve (331). The two screws (332) are respectively connected and fixed to the inner support (32) and the outer support (34). The adjusting sleeve (331) is suitable for adjusting the distance between the two screws (332).

4. The high-quality sealing structure for passive building through-wall pipes according to claim 3, characterized in that, The connection structure (17) includes a connector (171) installed on the base (11). The end of the tube body (20) is provided with a connection groove (23) suitable for connecting the connector (171). The end of the connector (171) protruding from the air barrier membrane is provided with a large head. The end of the connection groove (23) is provided with a large connection opening (231) and a small connection opening (232). The large connection opening (231) and the large head are adapted to each other, and the small connection opening (232) and the connector (171) are adapted to each other. The inner side of the connection groove (23) is provided with a ramp structure (233). The ramp structure (233) is suitable for the large head to enter the large connection opening (231) to drive the tube body (20) to gradually approach the base (11) and press the air barrier membrane.

5. The high-quality sealing structure for passive building through-wall pipes according to claim 4, characterized in that, The limiting ring (21) has a cross-section that is narrow on the outside and wide on the inside, and the height of the exhaust port (14) is higher than the height of the glue injection port (13).

6. The high-quality sealing structure for passive building through-wall pipes according to claim 5, characterized in that, Each of the internal supports (32) is provided with a guide hole (321) arranged parallel to the axis of the second tube (20). A guide rod (322) is installed in each guide hole (321). A sliding sleeve (323) is threaded to the end of the guide rod (322). A spring (324) is fitted on the outside of the guide rod (322) between the sliding sleeve (323) and the internal support (32). The sliding sleeve (323) is suitable for pushing the sealing ring (41) from the outside to the inside.

7. The high-quality sealing structure for passive building through-wall pipes according to claim 6, characterized in that, The snap ring (22) is provided with a groove suitable for installing the internal support (32).

8. The high-quality sealing structure for passive building through-wall pipes according to claim 7, characterized in that, The outer side of the tube body (10) is provided with a hook (50), the length of which is adjustable.

9. The construction method of the high-quality sealing structure for passive building through-wall pipes according to claim 8, characterized in that, The construction steps are as follows: Step 1: Pipe body 1 (10) installation After the steel mesh is tied, the first pipe body (10) is installed through the hook body (50). There are at least three hook bodies (50), and at least two sets are arranged along the axial direction. The first pipe body (10) is fixed at the design position by adjusting the length of the hook body (50) and connecting it with the nearest steel bar, and by tying wire or welding. An air-tight membrane is installed on the mounting ring (18) on the first pipe body (10), and a sealing gasket and an air-tight membrane are installed on the bearing platform (11). The large head of the connector (171) is exposed on the outside of the air-tight membrane. Step 2: Assembly and installation of pipe body 2 (20) Sliding sleeve (323) and rubber skin (40) are fitted on the outside of the second pipe body (20). The sealing ring (41) is located on the side of the limiting ring (21) near the bearing (11). The sliding sleeve (323) fits against the outside of the sealing ring (41). The internal support body (32) is installed in the groove on the snap ring (22). The limiting ring (21) and the sliding sleeve (323) are pressed together and the guide rod (322) and the sliding sleeve (323) are threadedly connected and fixed. Pipe body two (20) is inserted and installed along the axial direction of pipe body one (10). The large head and the connecting large port (231) are aligned and rotated at a certain angle. The end of pipe body two (20) is pressed against the air-proof membrane on the support platform (11). At the same time, the snap-fit ​​body and the mounting ring (18) are coplanar. By adjusting the adjusting screw sleeve (331) of the middle support body (33), the external support body (34) is gradually moved outward and the support bar (31) moves synchronously. The rubber skin (40) is pressed into the mounting ring (18). An air-proof membrane is installed in the limiting ring (21). Step 3: Seal with adhesive Pressureless glue injection: The glue injection port (13) is connected to the glue injection equipment to inject glue into the interior. During glue injection, the diaphragm of the exhaust port (14) is located on the outside of the first tube (10). The glue is gradually injected into the interior to fill the internal cavity. The cavity is surrounded by the outer wall of the rubber skin (40), the inner wall of the first tube (10), the outer wall of the second tube (20), and the air-proof membrane on the support (11). When polyurethane glue overflows from the diaphragm of the exhaust port (14), the glue inside is cleaned and pushed back into the first tube (10) and the threaded plug (16) is used to seal the exhaust port (14). Pressure injection: Continue to slowly inject glue into the interior. The internal polyurethane glue will gradually push the rubber skin (40) outward. Under the action of the sliding sleeve (323), the sealing ring (41) is forced to move outward gradually. When it moves to the limiting ring (21), the tension of the sealing ring (41) is released and it enters the limiting ring (21) and expands into the limiting ring (21) and presses the air barrier membrane at that point. Then stop the injection. Step 4: Installation of Insulation Layer and Formwork Install insulation layer: Install insulation layer on the outside of steel mesh, and make holes on the insulation layer corresponding to the second (20) position of the outer pipe body, and apply sealant to the opening; Template installation: Templates are installed on the outside of the insulation layer and inside the steel mesh. The inner and outer templates are fixed by tie bolts. Openings are reserved on the inner and outer templates for the second (20) pipe body to protrude. A sealing ring is installed at the opening. The sealing ring is installed on the template by bolts. The sealing ring is suitable for preventing concrete mortar from leaking from the opening. The end of the first (10) pipe body is located inside the steel reinforcement protective layer. Step 5: Pouring and Formwork Removal Concrete is poured and vibrated simultaneously. Once the concrete reaches the design strength, the inner and outer formwork is removed.

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