CN211080816U

CN211080816U - Waterproof node structure of roof drain

Info

Publication number: CN211080816U
Application number: CN201921977271.7U
Authority: CN
Inventors: 王常州; 吴斌; 赵清; 孙文; 彭瑞翔; 杨冲
Original assignee: China Metallurgical Construction Engineering Group Co Ltd
Current assignee: China Metallurgical Construction Engineering Group Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-24
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a roof drain port waterproof node structure, which comprises a roof structure layer and a parapet, wherein the roof structure layer comprises a structure plate, a waterproof layer, a heat preservation layer and a rigid concrete roof layer which are arranged from bottom to top; a first water filter pipe is arranged in the filter screen and the water falling port, a second water filter pipe communicated with the first water filter pipe is transversely arranged in the heat insulation layer and on the waterproof layer, and a plurality of filter holes are formed in the first water filter pipe and the second water filter pipe; a rainwater guide pipe is arranged below the filter screen, the upper end of the rainwater guide pipe is arranged in the downpipe opening and is abutted against the lower end surface of the filter screen, the lower end of the rainwater guide pipe extends out of the structural plate and is communicated with the downpipe of the next floor. The utility model discloses the waterproof node structure of roofing mouth of falling into water that obtains can draw the aqueous vapor of heat preservation, prevents that the roofing surface course from bulging and fracture.

Description

Waterproof node structure of roof drain

Technical Field

The utility model relates to a waterproof field of building, concretely relates to roofing water falling mouth waterproof node structure.

Background

For collecting and discharging the rainwater, the building roof all is equipped with drainage structures, and the rainwater that falls to the roof collects the roof ditch with the rainwater through looking for the slope of roof, and the ditch collects the rainwater mouth with the rainwater, and the rainwater is annotated the downspout through the downspout, and the rethread downspout is arranged the rainwater to appointed outlet.

In the construction process, due to the reasons of environment, human factors and the like, particularly under the condition of wet operation, moisture exists between the roof heat-insulating layer and the waterproof layer after the construction is finished, and the moisture is evaporated under the influence of climate and temperature, but is always sealed in the roof waterproof layer and cannot be released. After long-term accumulation, moisture can be released through a part with relatively weak sealing performance (usually, a part close to a parapet wall), so that the phenomena of dampness, mildew, alkali return and the like are generated on the outer surface of the moisture-releasing part, and the indoor surface layer is expanded and has cracking risk. In addition, if the existing rainwater pipe is difficult to discharge in a short time in heavy rain, the problem of unsmooth drainage occurs.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide one kind can be with the aqueous vapor of heat preservation draw forth, prevent the roofing surface course bulging and the roof mouth waterproof node structure that falls into water of fracture.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a roof drain port waterproof node structure comprises a roof structure layer and a parapet wall vertically arranged on one side of the roof structure layer, and is characterized in that the roof structure layer comprises a structure plate, a waterproof layer, a heat insulation layer and a rigid concrete roof layer which are arranged from bottom to top, a drain port which is vertically arranged and penetrates through the roof structure layer is arranged on one side close to the parapet wall, a filter screen which is positioned on the same plane with the upper end surface of the waterproof layer is arranged in the middle of the drain port, and a rainwater grate is arranged at the upper end of the drain port; a first water filter pipe is arranged on the filter screen and in the water falling port, a second water filter pipe communicated with the first water filter pipe is transversely arranged in the heat preservation layer and on the waterproof layer, a plurality of filter holes are respectively arranged on the first water filter pipe and the second water filter pipe, a water permeable layer is respectively wrapped on the heat preservation layer, the first water filter pipe and the second water filter pipe, and a fine stone filter layer is circumferentially arranged outside the water permeable layer of the first water filter pipe; a rainwater guide pipe is arranged below the filter screen, the upper end of the rainwater guide pipe is arranged in the downpipe opening and is abutted against the lower end surface of the filter screen, the lower end of the rainwater guide pipe extends out of the structural plate and is communicated with the downpipe of the next floor. Like this, through setting mode and the set position that changes the drain, should be vertical setting mode with the drain, and set up a strainer in the drain, the filtration pore that sets up on the strainer can lead the rainwater guiding tube of below to the steam of heat preservation through the filter tube and then discharge through the rainwater guiding tube. The arrangement is simple to operate, and meanwhile, the water vapor of the heat-insulating layer can be led out, so that the phenomena of roof bulging and cracking caused by long-term water vapor accumulation of the heat-insulating layer are avoided. In addition, the rainwater grate can filter partial impurities to prevent the rainwater guide pipe from being blocked, and the filter screen arranged between the water filter pipe and the rainwater guide pipe can further filter rainwater to ensure the smoothness of the rainwater guide pipe. The position of the water falling port is arranged close to the parapet wall, and the parapet wall is a rainwater accumulation area, so that rainwater can be effectively guided out. The fine stone filter layer can be used for preliminarily filtering the heat preservation layer, guiding water vapor and preventing rainwater from overflowing to the heat preservation layer through the water filter pipe.

Furthermore, the fine stone filter layer is frustum-shaped, the area of the lower end is large, and the area of the upper end is small. Thus, the conical frustum shape is adopted, and the stability is better.

Furthermore, the filtering holes on the first water filtering pipes are round holes with large outer sides and small inner sides, and each round hole is inclined downwards. Therefore, water in the pipe is not easy to overflow outwards in the flowing process, and water vapor in the heat-insulating layer outside the pipe can quickly enter the pipe.

Furthermore, the water filtering holes of the second water filtering pipes are arranged on one side far away from the waterproof layer, the second water filtering pipes are obliquely arranged, and one ends of the second water filtering pipes close to the parapet wall are lower than the other ends of the second water filtering pipes; the heat-insulating layer is obliquely arranged, and the part of the heat-insulating layer, which is far away from the parapet wall, is higher than the side of the heat-insulating layer, which is close to the parapet wall. Like this, can furthest draw the steam of heat preservation to the part that is close to the parapet, simultaneously, can also increase the flow rate of steam, avoid steam to amass in the second drainage pipe.

Further, the water permeable layer is a water permeable non-woven fabric. Like this, the non-woven fabrics cost is low, and has good water permeability, simultaneously, can also play filterable effect.

Furthermore, the rigid concrete roof layer has a gradient of 2% -3.5% near the parapet wall, and the position near the parapet wall is lower than the middle position of the rigid concrete roof layer. Therefore, under the slope, the rainwater can be quickly guided to flow to the first water falling port and the first water filter pipe, and the diversion of the rainwater is accelerated.

Furthermore, one side of the waterproof layer, which is close to the parapet wall, extends upwards along the parapet wall and is embedded into the parapet wall at a position higher than the first water falling port. Therefore, even if the rainwater is large, the lower end of the parapet wall can not lead accumulated water into the structural layer through the parapet wall due to the soaking of the rainwater.

Furthermore, a clamping groove is formed in the parapet wall and above the water falling port, and the outer edge of the waterproof layer is fixed in the clamping groove through ointment. Therefore, the outer edge of the waterproof layer is fixed through the factice, and the fixing operation is simple.

Drawings

FIG. 1 is a schematic sectional view of a waterproof node structure of a roof drain port in an embodiment;

fig. 2 is an enlarged schematic structural view of a first water filter pipe in the embodiment.

In the figure: parapet 1, structural slab 2, waterproof layer 3, heat preservation 4, rigid concrete roof layer 5, water falling port 6, first strainer 7, second strainer 8, fine stone filter layer 9, rainwater guide tube 10, filter screen 11, rainwater grate 12, draw-in groove 13.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b):

as shown in the figure, the waterproof node structure of the roof water-falling port provided by the embodiment comprises a roof structure layer and a parapet 1 vertically arranged on one side of the roof structure layer, wherein the roof structure layer comprises a structure plate 2, a waterproof layer 3, a heat-insulating layer 4 and a rigid concrete roof layer 5 which are arranged from bottom to top, one side of the parapet 1 is provided with a water-falling port 6 which is vertically arranged and penetrates through the roof structure layer, the middle part of the water-falling port 6 is provided with a filter screen 11 which is in the same plane with the upper end surface of the waterproof layer, and the upper end of the water-falling port 6 is provided with a rainwater grate 12; a first water filter pipe 7 is arranged on the filter screen 11 and in the water falling port 6, a second water filter pipe 8 communicated with the first water filter pipe 7 is also arranged in the heat preservation layer and on the waterproof layer, a plurality of filter holes are respectively arranged on the first water filter pipe 7 and the second water filter pipe 8, a water permeable layer is respectively wrapped on the first water filter pipe 7 and the second water filter pipe 8 in the heat preservation layer 4, and the water permeable layer is a water permeable non-woven fabric; a fine stone filter layer 9 is also arranged outside the permeable layer of the first water filter pipe 7 in the circumferential direction; a rainwater guide pipe 10 is arranged below the filter screen 11, the upper end of the rainwater guide pipe is arranged in the water falling port 6 and is abutted against the lower end face of the filter screen 11, the lower end of the rainwater guide pipe extends out of the structural plate 2 and is communicated with a downpipe of the next floor.

The position of the rigid concrete roof layer 5 close to the parapet wall 1 is provided with a 2% gradient, and the position close to the parapet wall is lower than the middle position of the rigid concrete roof layer. In a specific embodiment, the slope may be set to 3% or 3.5%. Still circumference is equipped with one deck fine stone filter layer 9 outside the permeable layer of first strainer 7, fine stone filter layer 9 is frustum form, and the lower extreme area is big, and the upper end area is little.

In order to prevent rainwater from overflowing to the heat insulation layer, the filtering holes on the first water filtering pipes 7 are round holes with large outer sides and small inner sides, and each round hole is inclined downwards. In order to collect the water vapor of the heat-insulating layer into the second water filtering pipe to the maximum extent, the water filtering holes of the second water filtering pipe 8 are arranged on one side far away from the waterproof layer, the second water filtering pipe is obliquely arranged, and one end, close to the parapet, of the second water filtering pipe is lower than the other end; the heat-insulating layer is obliquely arranged, and the part of the heat-insulating layer, which is far away from the parapet wall, is higher than the side of the heat-insulating layer, which is close to the parapet wall. Specifically, the angle of inclination of the second water filter pipe in this embodiment is 4 °.

In order to have good waterproof effect, one side of the waterproof layer 3 close to the parapet wall 1 extends upwards along the parapet wall and is embedded into the parapet wall 1 at a position higher than the first water falling port; a clamping groove 13 is arranged on the parapet wall 1 and above the water falling port, and the outer edge of the waterproof layer is fixed in the clamping groove through ointment.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the present invention in detail with reference to the preferred embodiments, those skilled in the art should understand that those modifications or equivalent substitutions to the technical solutions of the present invention can be made without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.

Claims

1. A roof drain port waterproof node structure comprises a roof structure layer and a parapet wall (1) vertically arranged on one side of the roof structure layer, and is characterized in that the roof structure layer comprises a structure plate (2), a waterproof layer (3), a heat insulation layer (4) and a rigid concrete roof layer (5) which are arranged from bottom to top, one side close to the parapet wall (1) is provided with a drain port (6) which is vertically arranged and penetrates through the roof structure layer, the middle part of the drain port (6) is provided with a filter screen (11) which is positioned on the same plane with the upper end surface of the waterproof layer, and the upper end of the drain port (6) is provided with a rainwater grate (12); a first water filter pipe (7) is arranged on the filter screen (11) and in the water falling port (6), a second water filter pipe (8) communicated with the first water filter pipe (7) is transversely arranged in the heat insulation layer and on the waterproof layer, a plurality of filter holes (71) are respectively arranged on the first water filter pipe (7) and the second water filter pipe (8), a water permeable layer is respectively wrapped on the first water filter pipe (7) and the second water filter pipe (8) in the heat insulation layer (4), and a fine stone filter layer (9) is also circumferentially arranged outside the water permeable layer of the first water filter pipe (7); a rainwater guide pipe (10) is arranged below the filter screen (11), the upper end of the rainwater guide pipe is arranged in the water falling port (6) and is abutted against the lower end face of the filter screen (11), the lower end of the rainwater guide pipe extends out of the structural plate (2), and the rainwater guide pipe is communicated with a downpipe of the next floor.

2. The roof drain port waterproof node structure according to claim 1, wherein the fine stone filter layer (9) is frustum-shaped, and has a large lower end area and a small upper end area.

3. The roof drain port waterproof node structure according to claim 1, wherein the filtering holes of the first water filtering pipes (7) are circumferentially arranged, each filtering hole is a round hole with a large outer side and a small inner side, and each round hole is inclined downwards.

4. The waterproof node structure of the roof drain port according to claim 1, wherein the water filtering holes of the second water filtering pipes (8) are arranged on the side far away from the waterproof layer, the second water filtering pipes are arranged in an inclined manner, and one ends of the second water filtering pipes close to the parapet walls are lower than the other ends of the second water filtering pipes; the heat-insulating layer is obliquely arranged, and the part of the heat-insulating layer, which is far away from the parapet wall, is higher than the side of the heat-insulating layer, which is close to the parapet wall.

5. The waterproof node structure of a roof drain port according to claim 1, wherein the water permeable layer is a water permeable non-woven fabric.

6. The roof water-dropping hole waterproof node structure according to claim 1, wherein the rigid concrete roof layer (5) has a gradient of 2% -3.5% at a position close to the parapet wall (1), and is lower than the middle position of the rigid concrete roof layer at a position close to the parapet wall.

7. The roof drain port waterproof node structure according to claim 1, wherein the waterproof layer (3) extends upwards along the parapet wall on the side close to the parapet wall (1) and is embedded in the parapet wall (1) higher than the first drain port.

8. The roof drain port waterproof node structure according to claim 7, wherein a clamping groove (13) is formed in the parapet wall (1) above the drain port, and the outer edge of the waterproof layer is fixed in the clamping groove through ointment.