A waterproofing node device for roof plumbing

Abstract

The application discloses a kind of roofing pipeline waterproof node devices, comprising: sleeve, one end is embedded in roofing structure layer, the other end extends roofing structure layer;Roofing pipeline, it is set in sleeve, the middle part outer wall of roofing pipeline is fixed with the first fixed ring that cooperates with the top surface of sleeve, the top surface of first fixed ring is laid with first waterproof pad layer;Waterproof ring, it is set on roofing pipeline, and located first waterproof pad layer, the top surface of waterproof ring is between the outer wall of roofing pipeline with first sealant, the bottom surface of waterproof ring outside extends and is formed with connecting portion, connecting portion and the other end outer wall of sleeve are threadedly connected;Waterproof layer, it is set on the outer wall of sleeve, one end of waterproof layer and the bottom surface of connecting portion abut, the other end extends to roofing structure layer outside;Wherein, sealing oil paste is arranged between roofing pipeline and sleeve.The application has the advantages of good sealing waterproof effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of roof waterproofing. More particularly, the present application relates to a roof pipe waterproofing node device. BACKGROUND

[0002] In roof waterproofing construction, the connection between the roof and the out-of-roof pipe is often prone to leakage and seepage, so there is an urgent need to improve the waterproof performance of the connection between the roof and the pipe. The existing application No. 202110637291.5 discloses an out-of-roof pipe waterproofing sealing structure, which comprises a steel sleeve embedded in the roof structure layer and provided with a water stop wing ring, a polymer waterproof mortar one poured between the steel sleeve and the out-of-roof pipe, a leveling layer laid on the roof structure layer, a waterproof roll adhered to the upper surface of the leveling layer and the outer side of the steel sleeve, an asphalt-based sealing paste sealed on the top of the waterproof roll and the polymer waterproof mortar, a galvanized pipe sleeved on the outer side of the waterproof roll and provided with a gap between the inner wall and the waterproof roll, and a polymer waterproof mortar two poured between the galvanized pipe and the waterproof roll and covering the top of the asphalt-based sealing paste. The gap between the steel sleeve and the out-of-roof pipe is sealed by the waterproof mortar one, the waterproof roll, the asphalt-based sealing paste and the waterproof mortar two to improve the waterproof effect of the out-of-roof pipe. However, since the waterproof mortar one, the waterproof roll, the asphalt-based sealing paste and the waterproof mortar two are of different materials, the thermal expansion and contraction amounts of the three are different, so that gaps will still occur between the steel sleeve and the out-of-roof pipe during long-term use, resulting in seepage. SUMMARY

[0003] An object of the present application is to provide a roof pipe waterproofing node device to solve the above problems.

[0004] In order to achieve the purpose and other advantages of the present application, a roof pipe waterproofing node device is provided, which comprises a sleeve embedded in a roof structure layer at one end and extending out of the roof structure layer at the other end, a roof pipe sleeved in the sleeve, a first fixing ring fixed on the outer wall of the middle part of the roof pipe and matched with the top surface of the sleeve, a first waterproof pad layer laid on the top surface of the first fixing ring, a waterproof ring sleeved on the roof pipe and located on the first waterproof pad layer, a first sealant provided between the inner side of the top surface of the waterproof ring and the outer wall of the roof pipe, a connecting part formed by extending downward from the outer side of the bottom surface of the waterproof ring, and a waterproof layer sleeved on the outer wall of the sleeve, one end of the waterproof layer abutting against the bottom surface of the connecting part and the other end extending outward to the roof structure layer. A sealant is provided between the roof pipe and the sleeve.

[0005] Preferably, the waterproof joint device for roof pipe, a second fixing ring is fixed on the lower outer wall of the sleeve, and the second fixing ring is embedded between the roof structure layer and the waterproof layer.

[0006] Preferably, the waterproof joint device for roof pipe, a leveling layer is arranged on the roof structure layer, the waterproof layer comprises a waterproof sheet layer and a protective layer from inside to outside, one end of the waterproof sheet layer is bonded to the outer wall of the sleeve and is folded downward and bonded to the surface of the protective layer after penetrating through the protective layer, and the other end of the waterproof sheet layer is bonded to the leveling layer.

[0007] Preferably, the waterproof joint device for roof pipe, a second waterproof pad layer is arranged on the waterproof sheet layer at one end of the waterproof layer, and the second waterproof pad layer abuts against the bottom surface of the connecting part.

[0008] Preferably, the waterproof joint device for roof pipe further comprises a connecting sleeve which comprises a first cylindrical part, a conical frustum part and a second cylindrical part arranged coaxially from top to bottom, the first cylindrical part is sleeved on the roof pipe and is threadedly connected with the roof pipe, the second cylindrical part is sleeved on the outside of the waterproof ring and extends downward to abut against the protective layer on the leveling layer, and the conical frustum part is used for connecting the first cylindrical part and the second cylindrical part, wherein the diameter of the first cylindrical part is smaller than the diameter of the second cylindrical part, and a second sealant is arranged between the top surface of the first cylindrical part and the outer wall of the roof pipe.

[0009] Preferably, the waterproof joint device for roof pipe, the outer wall of the protective layer on the outside of the sleeve is a one-step stepped structure, one end of the waterproof sheet layer is fixed on the stepped surface after being folded downward, a plurality of openings are arranged on the second cylindrical part at intervals in the circumferential direction of the second cylindrical part, each opening is arranged along the radial direction of the second cylindrical part and is located above the stepped surface, a moisture indicating cylinder is detachably connected in each opening, a moisture indicating agent is arranged in the moisture indicating cylinder, the outer wall of the moisture indicating cylinder near the waterproof sheet layer is in a mesh structure, one end of the moisture indicating cylinder abuts against the folded part of the waterproof sheet layer, and the other end of the moisture indicating cylinder is provided with a window.

[0010] Preferably, the waterproof joint device for roof pipe, the surface of the first sealant and the top surface of the waterproof ring outside are both arranged as inclined surfaces.

[0011] Preferably, the waterproof joint device for roof pipe, an elastic sealing ring is clamped on the bottom surface of the second cylindrical part in the circumferential direction.

[0012] Preferably, the waterproof joint device for roof pipe, a sealing grease is also arranged between the protective layer below the stepped surface on the outside of the sleeve and the second cylindrical part.

[0013] The present application at least includes the following advantages:

[0014] Firstly, the waterproof ring is pressed on the first waterproof pad of the first fixed ring, and the first sealant is arranged between the waterproof ring and the roof pipeline, and the sealing oil paste is arranged between the roof pipeline and the sleeve pipe, the first sealant is used for blocking the gap between the roof pipeline and the waterproof ring, forming the primary waterproof, and the first waterproof pad and the sealing oil paste are respectively used for blocking the gap between the first fixed ring and the waterproof ring and the gap between the roof pipeline and the sleeve pipe, forming the secondary waterproof, so as to block the water from continuing to infiltrate after the primary waterproof fails, and ensure the sealed connection of the roof pipeline and the sleeve pipe; the waterproof layer is arranged on the outer wall of the sleeve pipe, one end of the waterproof layer is abutted with the bottom surface of the connecting part, and the other end extends outward to the roof structure layer, so as to block the gap between the sleeve pipe and the roof structure layer and the gap between the waterproof layer and the connecting part, and ensure the sealed connection of the sleeve pipe and the roof structure layer.

[0015] Secondly, the connecting sleeve is arranged on the outer side of the sleeve pipe and the roof pipeline, so as to shield the connecting part of the roof pipeline and the sleeve pipe and the connecting part of the sleeve pipe and the roof structure layer, and delay the aging of the materials of the connecting parts; one end of the connecting sleeve is threadedly connected with the roof pipeline, and the other end is abutted with the protective layer on the leveling layer, so as to support the roof pipeline and enhance the connection stability of the roof pipeline and the sleeve pipe; the second sealant is arranged between the top surface of the connecting sleeve and the outer wall of the roof pipeline, so as to block the gap between the connecting sleeve and the roof pipeline, prevent rainwater from entering the connecting sleeve, and further improve the overall waterproof effect of the device.

[0016] Thirdly, the outer wall of the protective layer on the outer side of the sleeve pipe is arranged as a one-level step structure, so that the gap between the protective layer above the step surface and the second cylindrical part is increased to form a water storage space, one end of the waterproof roll layer is folded downward and fixed on the step surface, and a plurality of moisture indicating barrels are arranged on the second cylindrical part and abutted with the downward folded part of the waterproof roll layer, so that when the second sealant ages and rainwater infiltrates through the gap between the connecting sleeve and the roof pipeline, the rainwater can be collected in the water storage space and infiltrate into the moisture indicating barrel through the side wall of the net structure, so that the moisture indicator in the moisture indicating barrel changes color, so that the maintenance personnel can judge the connection of the connecting sleeve and the roof pipeline according to the color of the moisture indicator observed from the window, and replace the second sealant and the moisture indicating barrel in time according to the need, so as to maintain the overall waterproof performance of the device.

[0017] Other advantages, objects, and features of the present application will be apparent from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1is a sectional structure schematic view of a roof pipeline waterproof node device of one embodiment of the present application;

[0019] Figure 2 is Figure 1 is an enlarged view of a local part A;

[0020] Figure 3 is Figure 1 is an enlarged view of a local part B. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with embodiments and drawings, so that those skilled in the art can implement the present application according to the description and drawings.

[0022] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0023] It should be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified; in the description of the present application, the orientations or positional relationships indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] As Figures 1-3 shown, the embodiment of the present application provides a roof pipeline waterproof node device, which comprises: a sleeve 1, one end of which is embedded in a roof structure layer 2, and the other end of which extends out of the roof structure layer 2; a roof pipeline 3, which is sleeved in the sleeve 1, a first fixing ring 4 cooperating with the top surface of the sleeve 1 is fixed on the outer wall of the middle part of the roof pipeline 3, and a first waterproof pad layer 5 is laid on the top surface of the first fixing ring 4; a waterproof ring 6, which is sleeved on the roof pipeline 3 and located on the first waterproof pad layer 5, a first sealant 7 is arranged between the inner side of the top surface of the waterproof ring 6 and the outer wall of the roof pipeline 3, and a connecting part 8 is formed by extending downward from the outer side of the bottom surface of the waterproof ring 6, the connecting part 8 is threadedly connected with the outer wall of the other end of the sleeve 1; a waterproof layer, which is sleeved on the outer wall of the sleeve 1, one end of the waterproof layer abuts against the bottom surface of the connecting part 8, and the other end of the waterproof layer extends outward to the roof structure layer 2; wherein a sealing oil paste 21 is arranged between the roof pipeline 3 and the sleeve 1.

[0025] In the above embodiment, the roof pipe waterproof joint device comprises a sleeve, a roof pipe, a waterproof ring and a waterproof layer. One end of the sleeve is embedded in the roof structure layer, and the bottom surface is flush with the bottom surface of the roof structure layer. The other end of the sleeve extends out of the roof structure layer, and the outer wall of the other end is provided with external threads. The diameter of the roof pipe is smaller than the diameter of the sleeve. A first fixing ring is fixed on the outer wall of the middle part of the roof pipe. The outer diameter of the first fixing ring is equal to the outer diameter of the sleeve, so that the roof pipe can be sleeved in the sleeve and supported and fixed on the sleeve by the first fixing ring. A sealing oil paste, such as a sealing and lubricating silicone grease, is provided between the roof pipe and the sleeve. A first waterproof pad layer is laid on the top surface of the first fixing ring. The first waterproof pad layer is made of an elastic waterproof material, such as polyurethane. The waterproof ring is sleeved on the roof pipe. The bottom surface of the waterproof ring extends downward to form a connecting part. The inner wall of the connecting part is provided with internal threads matched with the external threads on the sleeve. By screwing the connecting part and the other end of the sleeve, the waterproof ring is driven to move downward to press the first waterproof pad layer. A first sealing glue, such as silicone sealing glue, is provided between the top surface of the waterproof ring and the outer wall of the roof pipe to seal the gap between the waterproof ring and the roof pipe. The waterproof layer is sleeved on the outer wall of the sleeve. One end of the waterproof layer abuts against the bottom surface of the connecting part to seal the gap between the waterproof layer and the connecting part. The other end of the waterproof layer extends outward to the roof structure layer to waterproof the roof structure layer.

[0026] In the above embodiment, the waterproof ring is pressed against the first waterproof pad layer of the first fixing ring. The first sealing glue is provided between the waterproof ring and the roof pipe. The sealing oil paste is provided between the roof pipe and the sleeve. The first sealing glue is used to seal the gap between the roof pipe and the waterproof ring to form primary waterproofing. The first waterproof pad layer and the sealing oil paste are respectively used to seal the gaps between the first fixing ring and the waterproof ring and between the roof pipe and the sleeve to form secondary waterproofing. In the event of failure of the primary waterproofing, the secondary waterproofing blocks the continuous infiltration of water to ensure the sealed connection of the roof pipe and the sleeve. The waterproof layer is sleeved on the outer wall of the sleeve. One end of the waterproof layer abuts against the bottom surface of the connecting part. The other end of the waterproof layer extends outward to the roof structure layer to seal the gaps between the sleeve and the roof structure layer and between the waterproof layer and the connecting part, thereby ensuring the sealed connection of the sleeve and the roof structure layer.

[0027] In another embodiment, a second fixing ring 9 is fixed on the lower outer wall of the sleeve 1 and embedded between the roof structure layer 2 and the waterproof layer. The sleeve is supported and fixed on the roof structure layer by the second fixing ring.

[0028] In another embodiment, a leveling layer 10 is provided on the roof structure layer 2. The waterproof layer comprises a waterproof membrane layer 11 and a protective layer 12 from inside to outside. One end of the waterproof membrane layer 11 is bonded to the outer wall of the sleeve 1 and folded downward to be bonded to the surface of the protective layer 12 after penetrating through the protective layer 12. The other end of the waterproof membrane layer 11 is bonded to the leveling layer 10.

[0029] In the embodiment, one end of the waterproof coiled material layer is passed out of the protective layer, folded downward and fixed on the surface of the protective layer to avoid separation between the waterproof coiled material layer on the sleeve and the protective layer during long-term use, and improve the waterproof effect.

[0030] In another embodiment, a second waterproof cushion layer 13 is arranged on the waterproof coiled material layer 11 at one end of the waterproof layer, the second waterproof cushion layer 13 is made of elastic waterproof material, such as polyurethane, and the second waterproof cushion layer 13 abuts against the bottom surface of the connecting part 8.

[0031] In the embodiment, the elastic second waterproof cushion layer is arranged on the waterproof coiled material layer 11 at one end of the waterproof layer, and the connecting part also extrudes the second waterproof cushion layer during the threaded connection of the connecting part and the sleeve, so that the connecting part is in close contact with one end of the waterproof layer and forms a seal.

[0032] In another embodiment, the device further comprises a connecting sleeve, which comprises a first cylindrical part 14, a conical frustum part 15 and a second cylindrical part 16 arranged coaxially from top to bottom, the first cylindrical part 14 is sleeved on the roof pipeline 3 and is threadedly connected thereto, the second cylindrical part 16 is sleeved outside the waterproof ring 6 and extends downward to abut against the protective layer 12 on the leveling layer 10, and the conical frustum part 15 is used to connect the first cylindrical part 14 and the second cylindrical part 16, wherein the diameter of the first cylindrical part 14 is smaller than the diameter of the second cylindrical part 16, and a second sealant 17 is arranged between the top surface of the first cylindrical part 14 and the outer wall of the roof pipeline 3.

[0033] In the embodiment, the connecting sleeve is sleeved on the outside of the sleeve and the roof pipeline to shield the connection between the roof pipeline and the sleeve and the connection between the sleeve and the roof structure layer, and delay the aging of the materials at the connections; one end of the connecting sleeve is threadedly connected with the roof pipeline, and the other end abuts against the protective layer on the leveling layer to support the roof pipeline and enhance the connection stability of the roof pipeline and the sleeve; the second sealant is arranged between the top surface of the connecting sleeve and the outer wall of the roof pipeline to seal the gap between the connecting sleeve and the roof pipeline, prevent rainwater from entering the connecting sleeve, and further improve the overall waterproof effect of the device.

[0034] In another embodiment, the outer wall of the protective layer 12 outside the sleeve 1 is a one-step structure, one end of the waterproofing membrane layer 11 is folded downward and fixed on the step surface, a plurality of openings 18 are arranged on the second cylindrical portion 16 along the circumferential direction, each opening 18 is arranged along the radial direction of the second cylindrical portion 16 and above the step surface, and a moisture indicating cylinder 19 is detachably connected in each opening 18, the detachable connection mode includes but is not limited to threaded connection and plug-in connection, a moisture indicator is arranged in the moisture indicating cylinder 19, the moisture indicator can change color according to the moisture content, such as anhydrous copper sulfate, the outer wall of the moisture indicating cylinder 19 near the waterproofing membrane layer is a mesh structure, one end of the moisture indicating cylinder 19 abuts against the downward folded part of the waterproofing membrane layer 11, and the other end is provided with a window. Specifically, the moisture indicating cylinder 19 is inserted into the opening 18, one end of the moisture indicating cylinder 19 protrudes out of the opening 18 and abuts against the downward folded part of the waterproofing membrane layer 11, and is adjacent to the step surface, the side wall of the part of the moisture indicating cylinder 19 protruding out of the opening 18 is a mesh structure, a handle is fixedly arranged on the middle part of the end face of the other end of the moisture indicating cylinder 19, the window is arranged around the handle, a sealing ring is arranged on the edge of the other end of the moisture indicating cylinder 19 along the circumferential direction, and the sealing ring is used to block the gap between the other end of the moisture indicating cylinder 19 and the opening 18.

[0035] In this embodiment, by arranging the outer wall of the protective layer outside the sleeve as a one-step structure, the gap between the protective layer above the step surface and the second cylindrical portion is increased to form a water storage space, and by folding one end of the waterproofing membrane layer downward and fixing it on the step surface and arranging a plurality of moisture indicating cylinders on the second cylindrical portion and abutting against the downward folded part of the waterproofing membrane layer along the circumferential direction, when the second sealant ages and rainwater seeps in through the gap between the connecting sleeve and the roof pipe, the rainwater can be collected in the water storage space and seep into the moisture indicating cylinder through the mesh structure side wall, so that the moisture indicator in the moisture indicating cylinder changes color, so that the maintenance personnel can judge the connection of the connecting sleeve and the roof pipe according to the color of the moisture indicator observed through the window, and replace the second sealant and the moisture indicating cylinder in time as needed to maintain the overall waterproof performance of the device.

[0036] Further, in order to avoid external rainwater from being retained in the opening 18, a downward inclined flow guide groove is arranged below the outside of the opening 18, and the moisture indicating cylinder 19 is arranged inside the flow guide groove.

[0037] In another embodiment, the surface of the first sealant 7 and the top surface outside of the waterproof ring 6 are both arranged as inclined surfaces, so as to guide the rainwater seeping into the connecting sleeve to quickly collect in the water storage space.

[0038] In another embodiment, the bottom surface of the second cylindrical part 16 is provided with an elastic sealing ring 20 along its circumference to achieve a tight connection between the second cylindrical part and the protective layer.

[0039] In another embodiment, sealing grease 21 is also provided between the protective layer 12 below the step surface outside the sleeve 1 and the second cylindrical part 16 to block the gap between the protective layer and the second cylindrical part below the step surface, avoiding the rainwater collected in the water storage space from continuing to infiltrate.

[0040] The application also provides a construction method of a waterproof node device of a roof pipeline, specifically comprising the following steps:

[0041] Step one, insert the sleeve into the reserved hole of the roof structure layer, make the bottom surface of the sleeve flush with the bottom surface of the roof structure layer, and support and fix the sleeve on the roof structure layer through the second fixing ring to ensure that the sleeve is perpendicular to the roof structure layer;

[0042] Step two, lay the leveling layer on the roof structure layer, and the top surface of the leveling layer is higher than the top surface of the second fixing ring, embed the second fixing ring in the leveling layer, and set the connection between the leveling layer and the outer wall of the sleeve as a slope when laying the leveling layer to increase the smoothness of the corner in the later stage of laying the waterproof roll material layer;

[0043] Step three, bond and lay the waterproof roll material layer on the leveling layer, and bond one end of the waterproof roll material layer to the outer wall of the sleeve and leave a margin of at least 50 cm;

[0044] Step four, pour the concrete protective layer on the waterproof roll material layer, and form a one-level step structure on the outer wall of the protective layer outside the sleeve, then fold one end of the waterproof roll material layer outward and bond it to the protective layer on the step surface, and cut and fix the excess part of the end on the step surface;

[0045] Step five, apply sealing grease on the outer wall of the roof pipeline with a preset length below the first fixing ring, then insert the roof pipeline into the sleeve, and support and fix it on the sleeve through the first fixing ring;

[0046] Step six, set the waterproof ring on the roof pipeline above the first fixing ring, then threadedly connect the connecting part of the waterproof ring to the other end of the outer wall of the sleeve, so that the bottom surface of the waterproof ring presses the first waterproof gasket on the first fixing ring, and at the same time, the bottom surface of the connecting part presses the end surface of one end of the waterproof layer;

[0047] Step seven, hit the first sealing glue between the inner side of the top surface of the waterproof ring and the outer wall of the roof pipeline to block the gap between the waterproof ring and the roof pipeline;

[0048] Step eight, apply sealing paste on the protective layer below the step surface outside the sleeve, then put the connecting sleeve on the roof pipe, and thread the connecting sleeve with the roof pipe until the bottom surface of the connecting sleeve abuts against the protective layer above the leveling layer;

[0049] Step nine, apply the second sealing glue between the top surface of the connecting sleeve and the outer wall of the roof pipe, so that the second sealing glue seals the gap between the connecting sleeve and the roof pipe;

[0050] Step ten, insert the moisture indicating cylinder into each opening until one end of the moisture indicating cylinder abuts against the waterproof layer.

[0051] The number of devices and the scale of the process described herein are used to simplify the description of the present application. It is obvious to those skilled in the art that the application of the roof pipe waterproof node device, modification and change of the present application.

[0052] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A waterproof joint device for roof pipes, characterized in that, include: A sleeve, one end of which is embedded in the roof structure layer and the other end of which extends out of the roof structure layer; A roof pipe is fitted inside the sleeve. A first fixing ring that mates with the top surface of the sleeve is fixed on the outer wall of the middle part of the roof pipe. A first waterproof pad is laid on the top surface of the first fixing ring. A waterproof ring is fitted onto the roof pipe and located on the first waterproof pad. A first sealant is provided between the inner side of the top surface of the waterproof ring and the outer wall of the roof pipe. A connecting part is formed by extending downward from the outer side of the bottom surface of the waterproof ring. The connecting part is threaded to the outer wall of the other end of the sleeve. A waterproof layer is fitted onto the outer wall of the sleeve, with one end abutting against the bottom surface of the connecting part and the other end extending outward to the roof structure layer; wherein... A sealing compound is provided between the roof pipe and the sleeve; The roof structure layer is provided with a leveling layer. The waterproof layer includes a waterproof membrane layer and a protective layer from the inside out. One end of the waterproof membrane layer is bonded to the outer wall of the sleeve and after passing through the protective layer, it is folded down and bonded to the surface of the protective layer. The other end of the waterproof membrane layer is bonded to the leveling layer. It also includes a connecting sleeve, which comprises, from top to bottom, a first cylindrical part, a frustum-conical part, and a second cylindrical part arranged coaxially. The first cylindrical part is fitted onto the roof pipe and threadedly connected to it. The second cylindrical part is fitted onto the outside of the waterproof ring and extends downward to abut against the protective layer located on the leveling layer. The frustum-conical part is used to connect the first cylindrical part and the second cylindrical part. The diameter of the first cylindrical part is smaller than the diameter of the second cylindrical part. A second sealant is provided between the top surface of the first cylindrical part and the outer wall of the roof pipe. The outer wall of the protective layer located outside the sleeve has a stepped structure. One end of the waterproof membrane layer is folded down and fixed to the stepped surface. Multiple openings are spaced along the circumference of the second cylindrical part. Each opening is arranged radially along the second cylindrical part and located above the stepped surface. A moisture indicator is detachably connected to the opening. The moisture indicator contains a moisture indicator that changes color according to the moisture content. The outer wall of the moisture indicator is a mesh structure on the side near the waterproof membrane layer. One end abuts against the folded-down portion of the waterproof membrane layer, and the other end has a viewing window.

2. The roof pipe waterproofing joint device as described in claim 1, characterized in that, A second fixing ring is fixed on the lower outer wall of the sleeve, and the second fixing ring is embedded between the roof structure layer and the waterproof layer.

3. The roof pipe waterproofing joint device as described in claim 1, characterized in that, A second waterproof pad is provided on the waterproof membrane layer located at one end of the waterproof layer, and the second waterproof pad abuts against the bottom surface of the connecting part.

4. The roof pipe waterproofing joint device as described in claim 1, characterized in that, The surface of the first sealant and the outer side of the top surface of the waterproof ring are both set as bevels.

5. The roof pipe waterproofing joint device as described in claim 1, characterized in that, An elastic sealing ring is fitted around the bottom surface of the second cylindrical part in a circumferential direction.

6. The roof pipe waterproofing joint device as described in claim 1, characterized in that, A sealing compound is also provided between the protective layer located below the stepped surface on the outside of the sleeve and the second cylindrical portion.

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