Multifunctional roof rainwater vertical drainage outlet pipe and construction method

Abstract

The present application relates to the technical fields of drainage pipe, and discloses a multifunctional roof rainwater vertical drainage outlet pipe and a construction method, which comprises an upper part and a lower part, the upper part comprises a lower extension part and an upper extension part, the lower extension part is installed in the lower part, a plurality of ribs are arranged on the outer side wall of the upper part in a circumferential direction, a channel is formed between two adjacent ribs, the lower end of the channel is communicated with the interiors of the upper part and the lower part, the upper extension part is located above the lower part, an exhaust pipe reserved head and a through hole are arranged on the upper extension part, the multifunctional roof rainwater vertical drainage outlet pipe and the construction method can solve the problem that the water in the heat insulation layer cannot be discharged in time, thus roof leakage occurs, and can also solve the problem that the rigid layer concrete is soaked in the interlayer water for a long time, the rigid layer concrete is in a wet state for a long time, and the service life of the rigid layer concrete is greatly shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drainage pipe, in particular to a multifunctional roof rain vertical drainage outlet pipe and a construction method. BACKGROUND

[0002] The existing waterproof construction method includes the following two forms:

[0003] The existing non-structural slope waterproof construction method is: structure plate construction→double-layer waterproof roll inverted construction→slope construction→thermal insulation layer construction (including air pipe installation)→mortar protection layer construction→rigid concrete surface layer construction (including air pipe outlet installation).

[0004] The existing structural slope waterproof construction method is: structure plate construction→double-layer waterproof roll inverted construction→thermal insulation layer construction (including air pipe installation)→mortar protection layer construction→rigid concrete surface layer construction (including air pipe outlet installation).

[0005] With the increasing number of construction projects, there are many roof leakage events, and there are many reasons for leakage. For example, during the double-layer waterproof roll inverted construction process, the waterproof roll needs to be laid down for several centimeters at the drainage outlet. The construction method of laying down the waterproof roll will make the drainage outlet diameter smaller, thereby directly affecting the smoothness of drainage, especially in the humid climate zone of Central Asia and subtropical regions, where rainfall is more and frequent. Poor drainage will cause rainwater to penetrate from the rigid concrete surface layer to the thermal insulation layer.

[0006] In addition, the air pipe is arranged in the thermal insulation layer, and the exhaust end of the air pipe is exposed outside the roof. The exhaust end of the air pipe is prone to aging and damage, and then the problem of water entering the air pipe will occur. Once the air pipe is flooded, it will directly penetrate into the thermal insulation layer.

[0007] Due to the above situation, the water in the thermal insulation layer is in a saturated state for a long time, which will eventually lead to leakage, and it is also difficult to find the leakage point, and it will also affect the function of the thermal insulation layer. In addition, the water in the thermal insulation layer is in a saturated state for a long time, and the rigid layer concrete is soaked in the interlayer water for a long time, and the rigid layer concrete is in a humid state for a long time, which will greatly shorten the service life of the rigid layer concrete.

[0008] After the above problems occur, the construction unit will make waterproof repair treatment, and the cost of roof leakage treatment is also considerable, which will cause serious economic losses to the construction unit, and the waterproof repair treatment cannot fundamentally solve the problem of roof leakage caused by the failure of the thermal insulation layer to discharge water in time. SUMMARY

[0009] The application aims to provide a roof rainwater vertical drainage multifunctional drainage outlet pipe fitting and a construction method to solve at least one of the above problems in the prior art.

[0010] To achieve the above-mentioned purpose, the application adopts the following technical solutions:

[0011] A roof rainwater vertical drainage multifunctional drainage outlet pipe fitting comprises an upper part and a lower part, the upper part comprises a lower extension and an upper extension, the lower extension is installed in the lower part;

[0012] A plurality of ribs are circumferentially arranged on the outer side wall of the upper part, a channel is formed between two adjacent ribs, and the lower end of the channel is in communication with the interiors of the upper part and the lower part;

[0013] The upper extension is located above the lower part, the upper extension is provided with an exhaust pipe reserved head and a through hole, and the exhaust pipe reserved head and the through hole are in communication with the channel;

[0014] The inner side wall of the lower part is provided with an extension groove, and a waterproof roll downlay space is formed between the ribs and the extension groove.

[0015] In the technical solution, the upper part and the lower part are separately arranged, the lower extension is installed in the lower part, and the upper extension is located above the lower part, so that the fitting can be adaptively installed with the existing waterproof construction steps, the downlay construction of the waterproof roll can be realized before the installation of the upper part after the installation of the lower part, the waterproof roll downlay space is formed between the ribs and the extension groove, the downlay space is sufficient for the downlay construction of the waterproof roll, and the waterproof effect of the waterproof layer construction is ensured; the plurality of ribs are circumferentially arranged on the outer side wall of the upper part, a channel is formed between two adjacent ribs, the width of the channel can be ensured by the ribs, the lower end of the channel is in communication with the interiors of the upper part and the lower part, the upper extension is provided with an exhaust pipe reserved head, the exhaust pipe reserved head is in communication with the channel, that is, the exhaust pipe reserved head is connected with the exhaust pipe in the thermal insulation layer after the installation of the upper part, so that when the exhaust pipe is filled with water, the water can be drained to the upper part and the lower part through the channel, and finally drained from the drain hole formed by the butt joint of the upper part and the lower part; at the same time, the exhaust effect of the thermal insulation layer can be realized through the connection with the exhaust pipe in the thermal insulation layer, and the exhaust path is the same as above; the upper extension is provided with a through hole, the through hole is in communication with the channel, and the through hole is located in the thermal insulation layer after the installation of the upper part, so that when the water in the thermal insulation layer seeps, the water can be drained from the through hole to the channel, and then drained from the drain hole, at the same time, the through hole can also realize the exhaust effect of the thermal insulation layer, and the exhaust path is the same as above; in addition, the lower end of the channel is in communication with the interiors of the upper part and the lower part, so that the natural air intake effect can be ensured after the water in the thermal insulation layer is drained.

[0016] In summary, the technical scheme changes the traditional single roof drainage function, not only limits the basic function of roof drainage, but also can realize the drainage, exhaust, and air intake effect of the thermal insulation layer, can drain the accumulated water and water vapor in the thermal insulation layer, thereby solving the problems of roof rainwater drainage, thermal insulation layer accumulated water drainage, exhaust and air intake. In addition, it also solves the problem of water accumulation in the thermal insulation layer caused by the aging of the exposed exhaust pipe on the roof. That is, the technical scheme solves the problem of water leakage caused by the existing design of the thermal insulation layer, and also solves the problem of long-term immersion of the rigid layer concrete in the interlayer, which greatly shortens the service life of the rigid layer concrete.

[0017] Further, in order to make the lower end of the upper component generate an opening between the inner side wall of the lower component after being installed in the lower component, which is convenient for drainage, exhaust and air intake, the lower end of the upper component is higher than the lower end of the rib.

[0018] Further, in order to ensure the limiting effect while improving the simplicity of the structure between the upper component and the lower component, the inner side wall of the lower component is provided with a limiting structure for supporting the lower end of the rib. When the lower end of the rib abuts against the limiting structure, the limiting structure is used to limit the installation position of the upper component in the lower component.

[0019] Further, in order to achieve more stable installation effect, the upper component and the lower component are coaxially arranged.

[0020] Further, in order to better connect with the exhaust pipe in the thermal insulation layer, the upper extension part includes a radial extension part, and the exhaust pipe reserved head is arranged on the outer side wall of the radial extension part.

[0021] Further, in order to improve the structural strength of the radial extension part while not affecting the communication between the channel and the thermal insulation layer, the rib extends to the inner side of the radial extension part to support the radial extension part.

[0022] Further, in order to better realize the compression of the waterproof roll and facilitate the fixation of the waterproof roll laid in the lower laying space, the outer side of the rib is circumferentially provided with a waterproof end compression ring, and the waterproof end compression ring is close to the lower end of the lower laying space.

[0023] Further, in order to have a certain water stopping effect on the outer side of the lower component, the outer side wall of the lower component is provided with a water stopping ring, and the water stopping ring is a groove type structure with an opening facing outward.

[0024] Further, in order to adapt to the selection and matching installation of the upper component according to different installation environments, the upper end of the upper component is provided with a monkey or a slag cover; or, the upper end of the upper component is provided with a heightening component, and the upper end of the heightening component is provided with a monkey or a slag cover.

[0025] The application also provides a roof rainwater vertical drainage construction method, comprising the roof rainwater vertical drainage multifunctional drainage port pipe, and comprising the following steps:

[0026] S1: structure layer construction;

[0027] S2: installing the lower part in the structure layer;

[0028] S3: concrete slope layer construction;

[0029] S4: waterproof coiled material construction, laying the waterproof coiled material into the laying space;

[0030] S5: thermal insulation layer construction;

[0031] S6: installing the upper part in the thermal insulation layer, and connecting the exhaust pipe reserved head with the exhaust pipe in the thermal insulation layer;

[0032] S7: mortar protection layer construction;

[0033] S8: rigid concrete surface layer construction.

[0034] The beneficial effects of the application are as follows: in the technical solution, the upper part and the lower part are separately arranged, the lower extension part is installed in the lower part, and the upper extension part is located above the lower part, so that the installation can be adapted to the existing waterproof construction steps, the waterproof coiled material laying construction can be realized before the upper part is installed after the lower part is installed, the laying space of the waterproof coiled material is formed between the rib and the extension groove, the laying space is sufficient for the waterproof coiled material laying construction, and thus the waterproof effect of the waterproof layer construction is ensured; the outer side wall of the upper part is circumferentially provided with a plurality of ribs, a channel is formed between two adjacent ribs, the width of the channel can be ensured by the ribs, the lower end of the channel is communicated with the interiors of the upper part and the lower part, the upper extension part is provided with an exhaust pipe reserved head, the exhaust pipe reserved head is communicated with the channel, that is, after the upper part is installed, the exhaust pipe reserved head is connected with the exhaust pipe in the thermal insulation layer, so that when the exhaust pipe is filled with water, the water can be drained into the upper part and the lower part through the channel, and finally drained out of the drain hole formed by the butt joint of the upper part and the lower part; at the same time, the exhaust effect of the thermal insulation layer can be realized through the connection with the exhaust pipe in the thermal insulation layer, and the exhaust path is the same as above; the upper extension part is provided with a through hole, the through hole is communicated with the channel, and the through hole is located in the thermal insulation layer after the upper part is installed, so that when the water in the thermal insulation layer seeps, the water can be drained out of the channel through the through hole, and then drained out of the drain hole, at the same time, the through hole can also realize the exhaust effect of the thermal insulation layer, and the exhaust path is the same as above; in addition, the lower end of the channel is communicated with the interiors of the upper part and the lower part, so that the natural air intake effect can be ensured after the water in the thermal insulation layer is drained out.

[0035] In summary, the technical scheme changes the function of the traditional single roof drainage port, is not limited to the basic function of roof drainage, and can realize the drainage, exhaust and air intake effects of the thermal insulation layer, can drain the accumulated water and water vapor in the thermal insulation layer, thereby solving the problems of roof rainwater drainage, thermal insulation layer accumulated water drainage, exhaust and air intake, in addition, solving the problem of water accumulation in the thermal insulation layer caused by water entering the exposed exhaust pipe after aging. That is, the technical scheme solves the problem of existing design of thermal insulation layer water seepage that cannot be drained in time, thereby causing roof leakage, and also solves the problem of long-term soaking of the rigid layer concrete in the interlayer, the long-term wet state of the rigid layer concrete, which greatly shortens the service life of the rigid layer concrete. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a top view structural schematic diagram of the left side as the upper part and the right side as the lower part in the application;

[0037] Figure 2 It is a top view structural schematic diagram of the slag blocking cover in the application;

[0038] Figure 3 It is a top view structural schematic diagram of the arrow in the application;

[0039] Figure 4 It is a sectional view structural schematic diagram of the slag blocking cover in the application;

[0040] Figure 5 It is another sectional view structural schematic diagram of the slag blocking cover in the application;

[0041] Figure 6 It is a sectional view structural schematic diagram of the arrow in the application;

[0042] Figure 7 It is another sectional view structural schematic diagram of the arrow in the application;

[0043] Figure 8 It is a sectional view structural schematic diagram of the heightening part and the arrow in the application;

[0044] Figure 9 It is another sectional view structural schematic diagram of the heightening part and the arrow in the application;

[0045] Figure 10 It is a three-dimensional structural schematic diagram of the upper part in the application.

[0046] In the figure: upper part 1; lower part 2; rib 5; channel 6; exhaust pipe reserved head 7; through hole 8; extension groove 9; outward flange 10; radial extension 11; vertical extension 12; embedded ring 13; close edge 14; clamp 15; slag cover 16; raised part 17; waterproof finish compression ring 18; water stop ring 19; structural layer 20; concrete sloping layer 21; waterproof roll 22; thermal insulation layer 23; exhaust pipe 24; rigid concrete surface layer 26; roof paving layer 27; drainage hole 28; opening 29; extension platform 30. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings is only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0048] Embodiment 1:

[0049] As shown in Figures 1-10 , the present embodiment provides a multifunctional vertical drainage outlet pipe for roof rainwater drainage, which comprises an upper part 1 and a lower part 2, the upper part 1 comprises a lower extension and an upper extension, the lower extension is installed in the lower part 2;

[0050] A plurality of ribs 5 are circumferentially arranged on the outer side wall of the upper part 1, preferably, eight ribs 5 are uniformly arranged on the outer side wall of the upper part 1, as shown in Figure 10 , the channels 6 are formed between the adjacent two ribs 5, and the lower ends of the channels 6 are in communication with the interiors of the upper part 1 and the lower part 2;

[0051] The upper extension is located above the lower part 2, and the upper extension is provided with an exhaust pipe reserved head 7 and a through hole 8, both of which are in communication with the channels 6;

[0052] The inner side wall of the lower part 2 is provided with an extension groove 9, the upper end of the extension groove 9 is circumferentially provided with an outward flange 10, the outward flange 10 facilitates the construction operation of the lower laying of the waterproof roll 22, the inner side of the outward flange 10 is an arc surface, and the ribs 5 and the extension groove 9 form a waterproof roll laying space.

[0053] The upper part 1 and the lower part 2 are separately arranged, the lower extension part is arranged in the lower part 2, and the upper extension part is arranged above the lower part 2, so that the waterproof construction step can be adapted to the installation, the lower part 2 is installed first, and then the upper part 1 is installed, so that the waterproof material 22 can be laid on the lower part 2, the rib 5 and the extension groove 9 form a waterproof material laying space, the waterproof material 22 is laid on the lower part 2, and the laying space is sufficient, so that the waterproof effect of the waterproof layer is ensured; the rib 5 is arranged on the outer side wall of the upper part 1, the channel 6 is formed between the two adjacent ribs 5, the width of the channel 6 is ensured by the rib 5, the lower end of the channel 6 is communicated with the inside of the upper part 1 and the lower part 2, the exhaust pipe reserved head 7 is arranged on the upper extension part, the exhaust pipe reserved head 7 is communicated with the channel 6, that is, after the upper part 1 is installed, the exhaust pipe reserved head 7 is connected with the exhaust pipe 24 in the thermal insulation layer 23, so that when the exhaust pipe 24 is filled with water, the water can be discharged to the inside of the upper part 1 and the lower part 2 through the channel 6, and finally discharged through the discharge hole formed by the abutment of the lower part 2 and the upper part 1, at the same time, the exhaust pipe 24 in the thermal insulation layer 23 can be connected, so that the exhaust effect of the thermal insulation layer 23 is realized, and the exhaust path is the same as above; the through hole 8 is arranged on the upper extension part, the through hole 8 is communicated with the channel 6, and the through hole 8 is arranged in the thermal insulation layer 23 after the upper part 1 is installed, so that when the water in the thermal insulation layer 23 is infiltrated, the water can be discharged to the channel 6 through the through hole 8, and then discharged to the discharge hole, and finally discharged through the discharge hole, at the same time, the through hole 8 can also realize the exhaust effect of the thermal insulation layer 23, and the exhaust path is the same as above; in addition, the lower end of the channel 6 is communicated with the inside of the upper part 1 and the lower part 2, so that the natural air intake effect can be ensured after the water in the thermal insulation layer 23 is discharged.

[0054] In summary, the technical scheme changes the traditional single roof drainage function, not only limits the basic function of roof drainage, but also realizes the drainage, exhaust and air intake effects of the thermal insulation layer 23, can discharge the accumulated water and water vapor in the thermal insulation layer 23, and solves the problems of roof rainwater drainage, thermal insulation layer 23 accumulated water drainage, exhaust and air intake, in addition, solves the problem of water accumulation in the thermal insulation layer 23 caused by the aging of the exposed exhaust pipe 24 on the roof. That is, the technical scheme solves the problem that the existing design of the thermal insulation layer 23 cannot discharge water in time, thereby causing roof leakage, and also solves the problem that the rigid layer concrete is long-term soaked in the interlayer, the rigid layer concrete is long-term in a wet state, and the service life of the rigid layer concrete is greatly shortened.

[0055] Embodiment 2:

[0056] This embodiment is optimized on the basis of the above-mentioned embodiment 1.

[0057] As Figure 8As shown, in order to make the lower end of the upper part 1 can be between the inner side wall of the lower part 2 after installation in the lower part 2, the upper part 1 of the lower end of the opening 29, the lower end of the rib 5 of the lower part 2 of the inner side wall position is higher than the position.

[0058] Embodiment 3:

[0059] This embodiment is based on the optimization of the above embodiment 1.

[0060] In order to ensure that the limiting effect while improving the upper part 1 and the lower part 2 between the structure of the simplicity, the inner side wall of the lower part 2 is provided with a limiting structure for supporting the lower end of the rib 5, when the lower end of the rib 5 and the limiting structure abut, the limiting structure is used to limit the installation height position of the upper part 1 in the lower part 2.

[0061] Specifically, as Figure 9 As shown, the limiting structure is an extension table 30 provided on the inner side wall of the lower part 2, the extension table 30 extends towards the upper part 1, the lower end of the rib 5 and the extension table 30 abut, the lower end of the adjacent two ribs 5 forms an opening 29 communicated with the channel 6.

[0062] Embodiment 4:

[0063] This embodiment is based on the optimization of the above embodiment 1.

[0064] In order to achieve more stable installation effect, the upper part 1 and the lower part 2 coaxial arrangement.

[0065] Embodiment 5:

[0066] This embodiment is based on the optimization of the above embodiment 1.

[0067] In order to better connect with the exhaust pipe 24 in the heat insulation layer 23, the upper extension includes a radial extension 11, the exhaust pipe reserved head 7 and the through hole 8 are arranged on the outer side wall of the radial extension 11. The outer end of the turned edge 10 is aligned with the outer end of the upper extension.

[0068] Specifically, in order to more easily realize the connection with the exhaust pipe 24, the exhaust pipe reserved head 7 and the through hole 8 are uniformly provided with a plurality of along the outer side wall of the radial extension 11, preferably, four exhaust pipe reserved heads 7 can be provided.

[0069] The upper extension includes a vertical extension 12, the vertical extension 12 is provided with an embedded ring 13, the embedded ring 13 is mainly embedded in the rigid concrete surface layer 26 of the roof; so that the installation structure is more stable, the upper of the embedded ring 13 is provided with a closing edge 14, the inner side of the closing edge 14 is convenient for installing the anchor 15, the slag cover 16 or the high part 17.

[0070] Embodiment 6:

[0071] This embodiment is based on the optimization of the above-mentioned embodiment 1.

[0072] In order to improve the structural strength of the radial extension 11 without affecting the communication between the channel 6 and the thermal insulation layer 23, the rib 5 extends to the inside of the radial extension 11 to support the radial extension 11.

[0073] In order to provide a radial extension 11 with simple structure and easy to form, the radial extension 11 includes a horizontal extension section and a vertical extension section, the exhaust pipe reserved head 7 is horizontally extended on the vertical extension section, and the through hole 8 is arranged on the vertical extension section.

[0074] Embodiment 7:

[0075] This embodiment is based on the optimization of the above-mentioned embodiment 1.

[0076] In order to better realize the compression of the waterproof roll 22, facilitate the fixation of the waterproof roll 22 laid in the lower laying space, the outer side of the rib 5 is provided with a waterproof end compression ring 18, and the waterproof end compression ring 18 is close to the lower end of the lower laying space.

[0077] Embodiment 8:

[0078] This embodiment is based on the optimization of the above-mentioned embodiment 1.

[0079] In order to have a certain water stopping effect on the outer side of the lower part 2, the outer side wall of the lower part 2 is provided with a water stopping ring 19, and the water stopping ring 19 is a groove structure with an opening facing outward.

[0080] Embodiment 9:

[0081] This embodiment is based on the optimization of the above-mentioned embodiment 1.

[0082] In order to facilitate the adaptive selection and matching installation of the upper assembly according to different installation environments, the upper end of the upper part 1 is provided with a clamp 15 or a slag cover 16; or the upper end of the upper part 1 is provided with a heightening part 17, and the upper end of the heightening part 17 is provided with a clamp 15 or a slag cover 16. In the case of increasing roof paving, the heightening part 17 can be increased to ensure the beauty of the drainage port closing.

[0083] It should be noted that, as shown in Figure 8 The heightening part 17 is a cylindrical structure, and a plurality of drainage holes 28 are uniformly arranged on the circumference of the heightening part 17 for draining water accumulated in the roof paving layer.

[0084] Embodiment 10:

[0085] The application further provides a construction method of the vertical roof rainwater drainage, comprising the multifunctional roof rainwater drainage pipe of the vertical roof rainwater drainage according to the embodiment 1, and comprising the following steps.

[0086] S1: construction of the structural layer 20;

[0087] S2: installation of the lower part 2 in the structural layer 20;

[0088] S3: construction of the concrete slope layer 21;

[0089] S4: construction of the waterproof roll material 22, and laying of the waterproof roll material 22 into the laying space;

[0090] S5: construction of the thermal insulation layer 23;

[0091] S6: installation of the upper part 1 in the thermal insulation layer 23, and connection of the exhaust pipe reserved head 7 with the exhaust pipe 24 in the thermal insulation layer 23;

[0092] S7: construction of the mortar protection layer;

[0093] S8: construction of the rigid concrete surface layer 26;

[0094] S9: increase of the roof paving layer 27, and in this case, the heightening part 17 can be added to ensure the closing edge of the drainage port to be beautiful.

[0095] The multifunctional drainage port pipe of the vertical roof rainwater drainage provided by the technical scheme has a beautiful closing edge of the drainage port, and the overall material of the upper part 1 and the lower part 2 is made of PVC material.

[0096] The technical scheme aims to ensure the smooth drainage of the roof drainage port, high quality and high degree of beauty of the closing edge of the drainage port, and solve the problems of roof rainwater drainage, drainage of the thermal insulation layer 23, exhaust and air intake.

[0097] The technical scheme can solve the problems of roof rainwater drainage, drainage of the thermal insulation layer 23, exhaust and air intake, and also changes the original roof design and construction method, and reduces the risk of roof leakage after the completion of the project.

[0098] It should be noted that the technical scheme solves the problem of roof leakage caused by the existing design of the thermal insulation layer that cannot drain water in time, and also solves the problem that the rigid layer concrete is soaked in the interlayer for a long time, the rigid layer concrete is in a wet state for a long time, and the service life of the rigid layer concrete is greatly shortened.

[0099] Finally, it should be noted that: the above is only the preferred embodiment of the application, and is not used to limit the protection scope of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A multi-functional downspout fitting for vertical roof drainage of rainwater, characterized by: The upper part comprises a lower extension and an upper extension, the lower extension is installed in the lower part; The outer side wall of the upper part is provided with a plurality of ribs in the circumferential direction, and a channel is formed between two adjacent ribs, the lower end of the channel communicates with the interior of the upper part and the lower part; The upper extension is located above the lower part, the upper extension is provided with an exhaust pipe reserved head and a through hole, and the exhaust pipe reserved head and the through hole both communicate with the channel; The inner side wall of the lower part is provided with an extension groove, and a waterproof roll lower laying space is formed between the rib and the extension groove; The outer side of the rib is provided with a waterproof end compression ring, and the waterproof end compression ring is close to the lower end of the lower laying space; The upper extension comprises a radial extension, and the exhaust pipe reserved head and the through hole are arranged on the outer side wall of the radial extension; The upper extension comprises a vertical extension, and the vertical extension is provided with an embedded ring; an inwardly tapered edge is arranged above the embedded ring, and the inwardly tapered edge is convenient for installing a clip, a slag cover or a heightening part; The upper end of the upper part is provided with a clip or a slag cover; or, the upper end of the upper part is provided with a heightening part, and the upper end of the heightening part is provided with a clip or a slag cover; The inner side wall of the lower part is provided with a limiting structure for supporting the lower end of the rib; The rib extends to the inner side of the radial extension to support the radial extension; The limiting structure is an extension table arranged on the inner side wall of the lower part, the extension table extends towards the upper part, the lower end of the rib abuts against the extension table, and the lower ends of two adjacent ribs form an opening hole which communicates with the channel.

2. The multi-functional vertical roof drainage outlet pipe according to claim 1, characterized in that: The lower end position of the upper part is higher than the lower end position of the rib.

3. The multi-functional vertical roof drainage outlet pipe according to claim 1, characterized in that: The upper part and the lower part are coaxially arranged.

4. The multi-functional vertical roof drainage outlet pipe according to claim 1, characterized in that: The outer side wall of the lower part is provided with a water stop ring, and the water stop ring is a groove type structure with an opening facing outward.

5. A construction method of vertical rainwater drainage of a roof, characterized by, The roof rainwater vertical drainage multi-functional drainage port pipe element comprises an upper part and a lower part, The method comprises the following steps: S1: structure layer construction; S2: installing the lower part in the structure layer; S3: concrete slope layer construction; S4: waterproof roll construction, laying the waterproof roll into the lower laying space; S5: thermal insulation layer construction; S6: installing the upper part in the thermal insulation layer, connecting the exhaust pipe reserved head with the exhaust pipe in the thermal insulation layer; S7: mortar protection layer construction; S8: rigid concrete surface layer construction.

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