Waterproof structure of building roof and construction method

Abstract

The application relates to a waterproof structure of a building roof and a construction method, which comprises a roof body, the roof body is provided with an exhaust pipe, a waterproof sleeve is sleeved on the outer wall of the exhaust pipe, the waterproof sleeve abuts against the roof body, a liquid collecting groove is arranged on the inner wall of the waterproof sleeve, the liquid collecting groove is provided with a water-swelling block, a sealing groove is arranged on the inner wall of the waterproof sleeve, an arc-shaped strip is arranged on the groove bottom of the sealing groove, the arc-shaped strip abuts against the outer wall of the exhaust pipe, the liquid collecting groove is communicated with the sealing groove, when liquid enters the liquid collecting groove along the inner wall of the waterproof sleeve, the water-swelling block swells when meeting water and abuts against the arc-shaped strip, so that the arc-shaped strip abuts against the outer wall of the exhaust pipe. The water-swelling block reduces the situation that liquid seeps into the roof body along the outer wall of the exhaust pipe, and improves the overall waterproof effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of house building, in particular to a waterproof structure of building roof. BACKGROUND

[0002] The main function of the roof exhaust pipe is to discharge the moisture, odor and harmful gas inside the building, keep the indoor air dry and fresh, and also can be used for ventilation of building drainage system.

[0003] Referring to the Chinese utility patent with patent number CN215106697U, a roof exhaust pipe is disclosed, which includes an exhaust pipe body installed on the top of the roof platform, the exhaust pipe body includes an exhaust hose embedded in the roof platform and a plastic exhaust pipe sleeved on the inner side of the plastic exhaust pipe.

[0004] In actual use, due to the vibration of the exhaust pipe or its own thermal expansion and contraction, a gap is easily formed at the contact between the exhaust pipe and the roof body, and liquid is easily seeped along the gap, thereby causing seepage, which needs to be improved. SUMMARY

[0005] In order to reduce the seepage of the building body, the present application provides a waterproof structure of building roof and construction method.

[0006] In the first aspect, the present application provides a waterproof structure of building roof, which adopts the following technical scheme:

[0007] A waterproof structure of building roof, comprising a roof body, the roof body is provided with an exhaust pipe, the outer wall of the exhaust pipe is sleeved with a waterproof sleeve, the waterproof sleeve abuts against the roof body, the inner wall of the waterproof sleeve is provided with a liquid collecting groove, the liquid collecting groove is provided with a water-swelling block, the inner wall of the waterproof sleeve is provided with a sealing groove, the groove bottom of the sealing groove is provided with an arc-shaped strip, the arc-shaped strip abuts against the outer wall of the exhaust pipe, the liquid collecting groove is communicated with the sealing groove, when liquid enters the liquid collecting groove along the inner wall of the waterproof sleeve, the water-swelling block swells in water and abuts against the arc-shaped strip to make the arc-shaped strip abut tightly against the outer wall of the exhaust pipe.

[0008] By adopting the above technical scheme, the waterproof sleeve is arranged, the outer wall of the water-swelling pipe abuts tightly against the outer wall of the water-swelling pipe, the end face of the waterproof sleeve abuts against the building body, and the water-swelling block is arranged, when the water-swelling block swells in water, the water-swelling pipe makes the arc-shaped strip abut tightly against the outer wall of the exhaust pipe, in this way, the liquid seepage along the outer wall of the exhaust pipe into the roof body is reduced, and the overall waterproof effect is improved.

[0009] Optionally, the waterproof sleeve is provided with a liquid discharge channel, the liquid discharge channel is used for communicating the liquid collecting groove, the waterproof sleeve is provided with a mounting cavity, the mounting cavity is provided with a control member, the control member is used for disconnecting the communication between the liquid discharge channel and the liquid collecting groove; when the water-swelling block swells in water, the control member makes the liquid discharge channel communicate with the liquid collecting groove.

[0010] By adopting the above technical solution, in actual use, when the liquid moves along the inner wall of the waterproof sleeve and the outer wall of the vent pipe to the liquid collection tank, the liquid causes the water-expanding component to expand and press against the outer wall of the vent pipe. However, if the liquid continues to enter the liquid collection tank, it will easily become too much liquid in the collection tank and cause the liquid to move along the sealing groove towards the vent pipe, thereby reducing the overall waterproof effect. Therefore, a control component is set to control the connection between the drain channel and the liquid collection tank, so as to facilitate the discharge of liquid from the collection tank and improve the overall waterproof effect.

[0011] Optionally, the control component includes control block one, control rod and control block two. The control rod connects control block one and control block two. The cavity wall of the mounting chamber is provided with control hole one and control hole two. Control hole two is located on the side of control hole one away from the axis of the exhaust pipe. Control hole one connects the liquid collection tank and the control chamber. Control hole two connects the liquid collection tank and the control chamber. Control block one passes through control hole one. Control block one is provided with an inclined surface. The inclined surface extends upward along the direction close to the exhaust pipe. Control block two passes through control hole two. Control block two restricts the liquid from moving away from the exhaust pipe.

[0012] By adopting the above technical solution, control block one, control block two, and control rod are set, and control block one is provided with an inclined surface. When the water-swellable component expands upon contact with water, the water-swellable component abuts against the inclined surface, causing control block one to move. The movement of control block one causes the control rod to drive control block two to move. The movement of control block two connects the drain channel to the collection tank, allowing the liquid to be discharged along the drain channel. In this way, the situation where liquid remains in the collection tank and moves towards the outer wall of the drain pipe is reduced. In this way, the overall waterproof effect is better.

[0013] Optionally, the outer wall of the waterproof sleeve is provided with a drainage groove. One end of the drainage channel is located at the bottom of the drainage groove and connected to the drainage groove, and the other end is connected to the collection groove. The size of the drainage groove is larger than the size of the drainage channel. The drainage channel is provided with a positioning plate. The positioning plate is connected to a return spring. The end of the return spring away from the positioning plate is connected to a waterproof plate. The waterproof plate is located at the bottom of the drainage groove. The waterproof plate closes the drainage channel. The elastic force of the return spring restricts the waterproof plate from moving away from the bottom of the drainage groove.

[0014] By adopting the above technical solution, in actual use, there may be situations where liquid accumulates on the roof itself. In such cases, the residual liquid on the roof body may flow back into the collection tank along the drainage channel. Therefore, a return spring and a waterproof plate are installed. The elasticity of the return spring restricts the movement of the waterproof plate away from the bottom of the drainage tank. In this way, the liquid in the drainage channel can push the waterproof plate to make the liquid flow out, while the liquid on the roof body is difficult to push the waterproof plate. In this way, the situation of residual liquid on the roof body entering the collection tank through the drainage channel is reduced.

[0015] Optionally, the exhaust pipe includes a pipe body one and a pipe body two, with pipe body one sliding on pipe body two in a vertical direction. A waterproof sleeve is provided on pipe body one, and a positioning strip is provided on the inner wall of the waterproof sleeve. The positioning strip extends in a direction close to the axis of the exhaust pipe away from the roof body. A positioning groove is provided on the outer wall of the exhaust pipe for the positioning strip to be inserted.

[0016] By adopting the above technical solution, two pipes are set up, with pipe one sliding on top of pipe two. This method facilitates the adjustment of the position of pipe one, thereby adjusting the height of pipe one protruding from the roof surface. This allows construction workers to easily determine the height of pipe one protruding from the roof surface according to the needs of the building. Secondly, positioning strips and positioning grooves are set up. The positioning strips extend from the direction close to the axis of the exhaust pipe away from the roof body. This extension direction restricts the seepage of liquid along the outer wall of the exhaust pipe, improving the overall waterproof effect. Furthermore, due to the sliding of pipe one, it is convenient for the end of the waterproof sleeve closest to the roof body to contact the roof body when installing the waterproof sleeve, making the overall installation more convenient.

[0017] Optionally, the inner wall of the waterproof sleeve is provided with a waterproof groove, and a sealing strip is provided at the bottom of the waterproof groove. The end of the sealing strip away from the bottom of the waterproof groove protrudes from the inner wall of the waterproof sleeve, and the sealing strip is used to press against the outer wall of the exhaust pipe.

[0018] By adopting the above technical solution, a waterproof groove and a sealing strip are set up. The sealing strip is pressed against the outer wall of the exhaust pipe. In this way, the flow of liquid along the outer wall of the drain pipe is reduced, and the overall waterproof performance is improved.

[0019] Secondly, this application also provides a construction method for a waterproof structure of a building roof, employing the following technical solution:

[0020] A method for constructing a waterproof structure for a building roof, comprising any of the aforementioned waterproof structures for building roofs, further comprising the following steps:

[0021] S1: Clean the base layer and lay an additional waterproof layer on the surface of the roof;

[0022] S2: Laying and fixing the waterproof membrane: Choose point fixing or linear fixing to fix the waterproof membrane;

[0023] S3: Spray waterproof coating: Apply waterproof coating twice. After the first coat is completely dry, apply the second coat of waterproof coating.

[0024] S4: Lay a protective layer: Lay a protective layer on the surface of the waterproof coating. The protective layer must completely cover the waterproof coating.

[0025] S5: Water tightness test: The water depth for the water tightness test should be no less than 20mm, the water height is generally 30-100mm, the water storage time is 24 hours, and the test is considered qualified if there is no significant drop in water level.

[0026] By implementing the above technical solutions, a protective layer is set up to reduce damage to the waterproof coating and waterproof membrane during subsequent construction. An additional waterproof layer is also set up to reduce water seepage in special areas such as corners and parapet walls. Through these measures, the overall waterproofing effect is improved.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Install a waterproof sleeve, with the inner wall of the waterproof sleeve pressed against the outer wall of the drain pipe and the end face of the waterproof sleeve against the main body of the house. Also install water-swellable blocks. When the water-swellable blocks expand when they come into contact with water, the water-swellable tubes cause the arc-shaped strips to press against the outer wall of the exhaust pipe. In this way, the seepage of liquid into the roof body along the outer wall of the exhaust pipe is reduced, thus improving the overall waterproof effect.

[0029] 2. Install control components to control the connection between the drain channel and the collection tank, facilitating the discharge of liquid from the collection tank and improving the overall waterproofing effect;

[0030] 3. A reset spring and a waterproofing plate are installed. The spring force of the reset spring restricts the waterproofing plate from moving away from the bottom of the drainage tank. In this way, the liquid in the drainage channel can push the waterproofing plate to make the liquid flow out, while the liquid in the roof body is difficult to push the waterproofing plate. In this way, the situation of residual liquid in the roof body entering the collection tank through the drainage channel is reduced. Attached Figure Description

[0031] Figure 1 This is a cross-sectional schematic diagram of an embodiment.

[0032] Figure 2 This is a partial cross-sectional view of an embodiment, mainly showing the waterproof sleeve.

[0033] Figure 3 yes Figure 2 An enlarged diagram of A in the diagram.

[0034] Figure 4 yes Figure 2 Enlarged diagram of B in the diagram.

[0035] Explanation of reference numerals in the attached drawings: 1. Roof body; 2. Exhaust pipe; 3. Pipe body one; 4. Pipe body two; 5. Sliding ring groove; 6. Sliding part; 7. Waterproof sleeve; 8. Waterproof groove; 9. Sealing strip; 10. Positioning strip; 11. Positioning groove; 12. Liquid collection groove; 13. Inclined groove; 14. Horizontal groove; 15. Water-swellable block; 16. Sealing groove; 17. Arc-shaped strip; 18. Drainage groove; 19. Drainage channel; 20. Positioning plate; 21. Return spring; 22. Waterproof membrane; 23. Mounting cavity; 24. Control component; 25. Control block one; 26. Control block two; 27. Control rod; 28. Inclined surface; 29. ​​Extension part; 30. Additional waterproof layer; 31. Waterproof membrane; 32. Waterproof coating; 33. Protective layer. Detailed Implementation

[0036] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] This application discloses a waterproof structure and construction method for a building roof. (Refer to...) Figure 1 The system includes a roof body 1, through which an exhaust pipe 2 is installed. The exhaust pipe 2 includes a pipe body 3 and a pipe body 4. The pipe body 4 is provided with a sliding annular groove 5, which is located at one end of the pipe body 4 near the pipe body 3. The pipe body 3 is provided with a sliding part 6, which is embedded in the sliding annular groove 5. The pipe body 3 slides in the sliding annular groove 5 through the sliding part 6. The sliding direction of the pipe body 3 is the axial direction of the pipe body 4.

[0038] The pipe body 1 (3) is fitted with a waterproof sleeve 7. The inner wall of the waterproof sleeve 7 abuts against the outer wall of the pipe body 1 (3), and the end of the waterproof sleeve 7 near the pipe body 2 (4) abuts against the roof body 1. The inner wall of the waterproof sleeve 7 has a waterproof groove 8, and the bottom of the groove 8 has a sealing strip 9. The end of the sealing strip 9 away from the bottom of the groove 8 protrudes from the inner wall of the waterproof sleeve 7 and is used to abut against the outer wall of the exhaust pipe 2. The inner wall of the waterproof sleeve 7 also has a positioning strip 10, which is located on the side of the waterproof groove 8 near the roof body 1. The positioning strip 10 extends along the direction close to the axis of the exhaust pipe 2 away from the roof body 1. The outer wall of the exhaust pipe 2 has a positioning groove 11 for the positioning strip 10 to be inserted. In actual use, the waterproof sleeve 7 is composed of a semi-ring sleeve 1 and a semi-ring sleeve 2 spliced ​​together. The connection between the semi-ring sleeve 1 and the semi-ring sleeve 2 can be welded together; alternatively, the semi-ring sleeve 1 can be detachably connected to the semi-ring sleeve 2. In other embodiments, a drainage channel may be provided above the positioning strip 10. The drainage channel allows the outside environment to pass through and is used to guide the liquid flowing to the positioning strip 10, so as to reduce the accumulation of liquid at the positioning strip 10.

[0039] The inner wall of the waterproof sleeve 7 is provided with a liquid collection groove 12, which is used to collect liquid flowing down the outer wall of the pipe body 3. The liquid collection groove 12 includes an inclined groove 13 and a horizontal groove 14. The inclined groove 13 is located on the side of the horizontal groove 14 near the positioning strip 10. The inclined groove 13 extends from the inner wall of the pipe body 3 towards the roof body 1. The end of the inclined groove 13 away from the inner wall of the pipe body 3 is connected to the horizontal groove 14. The horizontal groove 14 is provided with a water-expanding block 15. The inner wall of the waterproof sleeve 7 is provided with a sealing groove 16, which is located on the side of the inclined groove 13 away from the positioning strip 10 and is connected to the horizontal groove 14. The bottom of the sealing groove 16 is provided with an arc-shaped strip 17, which abuts against the outer wall of the exhaust pipe 2. When the liquid enters the inclined groove 13 along the inner wall of the waterproof sleeve 7, the liquid moves along the inclined groove 13 to the horizontal groove 14, causing the water-expanding block 15 in the horizontal groove 14 to expand upon contact with water, thereby contacting the arc-shaped strip 17 and causing the arc-shaped strip 17 to press against the outer wall of the exhaust pipe 2.

[0040] The waterproof sleeve 7 is provided with a drainage trough 18, and a drainage channel 19 is provided at the bottom of the drainage trough 18. The drainage channel 19 is used to connect the collection trough 12 and the drainage trough 18. The size of the drainage trough 18 is larger than the size of the drainage channel 19. The drainage channel 19 is provided with a positioning plate 20. The positioning plate 20 is located on the side of the drainage channel 19 away from the roof body 1. The positioning plate 20 is connected to a return spring 21. The end of the return spring 21 away from the positioning plate 20 is connected to a waterproof plate 22. The waterproof plate 22 is located at the bottom of the drainage trough 18. The waterproof plate 22 is used to close the drainage channel 19. The elastic force of the return spring 21 restricts the movement of the waterproof plate 22 away from the bottom of the drainage trough 18.

[0041] In practical use, the drainage channel 19 extends in a direction away from the outer wall of the pipe body 3 and towards the roof body 1. When the liquid in the drainage channel 19 moves to the waterproof plate 22, and the thrust of the liquid in the drainage channel 19 on the waterproof plate 22 is greater than the friction between the waterproof plate 22 and the wall of the drainage trough 18 and the tension of the return spring 21 on the waterproof plate 22, the waterproof plate 22 moves, causing the liquid to flow out.

[0042] The waterproof sleeve 7 has an installation cavity 23, and the installation cavity 23 has a control component 24. The control component 24 is used to disconnect the connection between the drain channel 19 and the collection tank 12. When the water-expanding block 15 expands upon contact with water, the control component 24 connects the drain channel 19 and the collection tank 12. The control component 24 includes a control block 1 25, a control rod 27, and a control block 26. The control block 26 is located on the side of the control block 1 25 away from the outer wall of the pipe body 3. The control rod 27 connects the control block 1 25 and the control block 26. The cavity wall of the installation cavity 23 has a control hole 1 and a control hole 2. The control hole 2 is located on the side of the control hole 1 away from the axis of the exhaust pipe 2. The control hole 1 connects the collection tank 12 and the control cavity, and the control hole 2 connects the collection tank 12 and the control cavity.

[0043] Control block 1 25 passes through control hole 1. Control block 1 25 has an inclined surface 28. The inclined surface 28 is located in the transverse groove 14 and extends upward along the direction close to the exhaust pipe 2. Control block 26 passes through control hole 2. Control block 26 is used to disconnect the transverse groove 14 from the drain channel 19, thereby restricting the liquid from moving away from the pipe body 3.

[0044] When liquid enters the transverse groove 14, the water-expanding block 15 in the transverse groove 14 expands upon contact with water. The water-expanding block 15 abuts against the inclined surface 28 and pushes the control block 1 25 to move toward the roof body 1. The movement of the control block 1 25 drives the control rod 27 and the control block 2 26 to move, thereby causing the liquid to move toward the drain channel 19.

[0045] In this application, the outer wall of the waterproof sleeve 7 is provided with an extension 29, which is located at one end of the waterproof sleeve 7 near the roof body 1. The extension 29 extends in a direction away from the outer wall of the tube body 3 toward the roof body 1.

[0046] The implementation principle of a waterproof structure for a building roof in this application embodiment is as follows: In actual use, liquid tends to flow down along the contact point between the pipe body 3 and the roof body 1, resulting in poor waterproofing effect. A waterproof sleeve 7 is provided, and the extension 29 of the waterproof sleeve 7 allows the waterproof sleeve 7 to pass through multiple layers of waterproofing, reducing the situation where liquid flows through the gap between the waterproof sleeve 7 and the roof body 1 and causes poor waterproofing.

[0047] When liquid flows down the contact point between the outer wall of the pipe body 3 and the waterproof sleeve 7, the liquid collection tank 12 collects the liquid, causing the water-swellable block 15 to expand upon contact with water. The water-swellable tube causes the arc-shaped strip 17 to press against the outer wall of the exhaust pipe 2. In this way, the situation of liquid seeping into the roof body 1 along the outer wall of the exhaust pipe 2 is reduced, thus improving the overall waterproof effect.

[0048] The construction method for a waterproof structure of a building roof, including the aforementioned waterproof structure for a building roof, includes the following steps:

[0049] S1: Clean the base layer and lay a waterproof additional layer 30 on the surface of the roof body 1, with the waterproof additional layer 30 covering the extension 29.

[0050] S2: Laying and fixing the waterproof membrane 31: Fix the waterproof membrane 31 by selecting point fixing or linear fixing, and the waterproof membrane 31 covers the extension 29.

[0051] S3: Spray waterproof coating 32: Spray waterproof coating 32 twice. After the first spray, wait for the waterproof coating 32 to dry completely before spraying the second coat of waterproof coating 32.

[0052] S4: Lay protective layer 33: Lay protective layer 33 on the surface of waterproof coating 32. Protective layer 33 must completely cover waterproof coating 32 and completely cover extension 29.

[0053] S5: Water tightness test: The water depth for the water tightness test should be no less than 20mm, the water height is generally 30-100mm, the water storage time is 24 hours, and the test is considered qualified if there is no significant drop in water level.

[0054] The implementation principle of the construction method of a waterproof structure for a building roof in this application embodiment is as follows: during the construction process, the waterproof additional layer 30, waterproof membrane 31, waterproof coating 32 and protective layer 33 all cover the extension 29, which improves the overall waterproof effect and makes the construction more convenient.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof structure for a building roof, comprising a roof body (1), characterized in that: The roof body (1) is provided with an exhaust pipe (2), the outer wall of the exhaust pipe (2) is fitted with a waterproof sleeve (7), the waterproof sleeve (7) abuts against the roof body (1), the inner wall of the waterproof sleeve (7) is provided with a liquid collection tank (12), the liquid collection tank (12) is provided with a water-expanding block (15), the inner wall of the waterproof sleeve (7) is provided with a sealing groove (16), the bottom of the sealing groove (16) is provided with an arc-shaped strip (17), the arc-shaped strip (17) abuts against the outer wall of the exhaust pipe (2), the liquid collection tank (12) is connected to the sealing groove (16), when liquid enters the liquid collection tank (12) along the inner wall of the waterproof sleeve (7), the water-expanding block (15) expands upon contact with water and abuts against the arc-shaped strip (17), so that the arc-shaped strip (17) presses against the outer wall of the exhaust pipe (2); The waterproof sleeve (7) is provided with a drain channel (19) for connecting the liquid collection tank (12). The waterproof sleeve (7) is provided with an installation cavity (23) and a control component (24) is provided in the installation cavity (23). The control component (24) is used to disconnect the drain channel (19) from the liquid collection tank (12). When the water-expanding block (15) expands when it comes into contact with water, the control component (24) makes the drain channel (19) connect with the liquid collection tank (12).

2. The waterproof structure for building roofs according to claim 1, characterized in that: The control component (24) includes a control block one (25), a control rod (27) and a control block two (26). The control rod (27) connects the control block one (25) and the control block two (26). The cavity wall of the mounting cavity (23) is provided with a control hole one and a control hole two. The control hole two is located on the side of the control hole one away from the axis of the exhaust pipe (2). The control hole one connects the liquid collection tank (12) and the control cavity. The control hole two connects the liquid collection tank (12) and the control cavity. The control block one (25) passes through the control hole one. The control block one (25) is provided with an inclined surface (28). The inclined surface (28) extends upward along the direction close to the exhaust pipe (2). The control block two (26) passes through the control hole two. The control block two (26) restricts the liquid from moving away from the exhaust pipe (2).

3. The waterproof structure for building roofs according to claim 1, characterized in that: The outer wall of the waterproof sleeve (7) is provided with a drain groove (18). One end of the drain channel (19) is located at the bottom of the drain groove (18) and connected to the drain groove (18). The other end is connected to the collection groove (12). The size of the drain groove (18) is larger than the size of the drain channel (19). The drain channel (19) is provided with a positioning plate (20). The positioning plate (20) is connected to a return spring (21). The end of the return spring (21) away from the positioning plate (20) is connected to a waterproof plate (22). The waterproof plate (22) is located at the bottom of the drain groove (18). The waterproof plate (22) closes the drain channel (19). The elastic force of the return spring (21) restricts the waterproof plate (22) from moving away from the bottom of the drain groove (18).

4. The waterproof structure for building roofs according to claim 1, characterized in that: The exhaust pipe (2) includes a pipe body one (3) and a pipe body two (4). The pipe body one (3) slides on the pipe body two (4). The sliding direction of the pipe body one (3) is vertical. A waterproof sleeve (7) is provided on the pipe body one (3). The inner wall of the waterproof sleeve (7) is provided with a positioning strip (10). The positioning strip (10) extends along the direction close to the axis of the exhaust pipe (2) and away from the roof body (1). The outer wall of the exhaust pipe (2) is provided with a positioning groove (11). The positioning groove (11) is for the positioning strip (10) to be embedded.

5. The waterproof structure for building roofs according to claim 1, characterized in that: The inner wall of the waterproof sleeve (7) is provided with a waterproof groove (8), and the bottom of the waterproof groove (8) is provided with a sealing strip (9). The end of the sealing strip (9) away from the bottom of the waterproof groove (8) protrudes from the inner wall of the waterproof sleeve (7). The sealing strip (9) is used to press against the outer wall of the exhaust pipe (2).

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