Inverted roof structure convenient to drain and exhaust

Abstract

The utility model provides an inverted roof structure convenient for drainage and exhaust, which belongs to the technical field of house construction, and comprises a structural layer, a drainage ditch and a slope making layer, the bottom of the drainage ditch is provided with a plurality of water falling openings, and the upper side of the slope making layer is sequentially provided with a waterproof layer, a heat preservation layer and a decoration layer in an overlapping manner; a first flow guide pipe is arranged at the bottom of the drainage ditch, first flow guide holes are formed in the annular side of the first flow guide pipe at intervals in the axis direction of the first flow guide pipe, and the first flow guide pipe on the upper side of any water falling opening is partially broken to form a drainage notch; a plurality of second flow guide pipes are arranged between the waterproof layer and the heat preservation layer, any second flow guide pipe is arranged in the inclination direction of the slope making layer, the ends, facing the drainage ditch, of the second flow guide pipes communicate with the second flow guide pipes, and a plurality of second flow guide holes are formed in the annular sides of the second flow guide pipes at intervals in the axis direction of the second flow guide pipes. The problems of surface side saltpetering, arching and cracking after thermal expansion and cold contraction of the decorative layer and aging and water leakage of the waterproof layer can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of house construction, in particular to an inverted roof structure which is convenient for drainage and exhaust. Background Art

[0002] Building roof refers to the surface of the building roof, also refers to the part between the ridge and the eaves, and is an indispensable part of the building. The roof not only plays the role of sheltering from wind and rain, but also bears a large roof load. Building roofs are usually composed of a load-bearing structural layer, a thermal insulation layer, a slope adjustment layer and a waterproof layer.

[0003] Due to the different positions of the waterproof layer and the thermal insulation layer, building roofs are usually divided into two types: upright roofs and inverted roofs. In upright roofs, the thermal insulation layer is generally below the waterproof layer, because the materials of the thermal insulation layer of the upright roof are generally pearlite, cement polystyrene board, aerated concrete, ceramsite concrete, polystyrene board (EPS) and other materials. These materials generally have a common problem of high water absorption. If they absorb water, the thermal insulation performance is greatly reduced and cannot meet the thermal insulation requirements. Therefore, the waterproof layer must be built on top to prevent moisture from penetrating and ensure the dryness of the thermal insulation layer in order to achieve thermal insulation. The inverted roof is to reverse the layers of the waterproof layer and the thermal insulation layer in the upright roof, with the waterproof layer at the bottom and the thermal insulation layer at the top. Compared with the upright roof construction method, this method can first prevent the waterproof layer from thermal expansion and contraction, thereby extending the service life of the waterproof layer; and the thermal insulation layer provides a layer of physical protection for the waterproof layer to prevent it from being damaged by external forces.

[0004] The existing inverted roof is mainly composed of a structural layer, a slope layer, a leveling layer, a waterproof layer, an insulation layer and a decorative layer which are overlapped in sequence. The insulation layer and the decorative layer are both spliced ​​together, and the joints between the insulation layer and the decorative layer cannot be completely sealed. Rainwater seeps in through the gap between the decorative layer and the insulation layer, causing the insulation layer to be soaked in water for a long time. When the accumulated water reacts to produce water vapor, it will not only cause the surface of the decorative layer to effloresce, and arch and crack due to thermal expansion and contraction, but may also cause aging and leakage of the waterproof layer. Utility Model Content

[0005] The utility model aims to provide an inverted roof structure which is convenient for drainage and exhaust, aiming to solve the technical problems in the above-mentioned background technology.

[0006] The utility model is achieved in this way:

[0007] The technical solution of the present application provides an inverted roof structure that is convenient for drainage and exhaust, comprising a structural layer, and a drainage ditch and a slope layer arranged on the structural layer, wherein the slope layer is inclined toward the drainage ditch, and a plurality of water outlets are arranged at intervals at the bottom of the drainage ditch along the extension direction thereof, and a waterproof layer, a thermal insulation layer and a decorative layer are sequentially overlapped on the upper side of the slope layer;

[0008] A first flow guide pipe is provided at the bottom of the drainage ditch, and the first flow guide pipe is provided along the extension direction of the drainage ditch. First flow guide holes are provided at intervals on the annular side of the first flow guide pipe along the axial direction thereof. The first flow guide pipe is located on the upper side of any of the water outlets, and the first flow guide pipe on the upper side of any of the water outlets is partially disconnected to form a drainage gap, and the drainage gap is connected to the water outlet;

[0009] A plurality of second flow guide pipes are arranged between the waterproof layer and the thermal insulation layer, and the plurality of second flow guide pipes are arranged in parallel on the upper side of the waterproof layer. Any of the second flow guide pipes is arranged along the inclination direction of the slope finding layer, and one end of any of the second flow guide pipes is connected to the second flow guide pipe toward the drainage ditch, and a plurality of second flow guide holes are arranged at intervals on the annular side of the second flow guide pipe along its axial direction.

[0010] In some embodiments of the present invention, the number of the second flow guiding tubes is an even number, and the plurality of second flow guiding tubes are symmetrically distributed in pairs with respect to the first flow guiding tubes;

[0011] The butt joints between any two symmetrically distributed second flow guide pipes and the first flow guide pipe are connected by a four-way joint.

[0012] In some implementations of the present invention, the first flow guide tube and the second flow guide tube are both made of PVC material.

[0013] In some embodiments of the present invention, the first flow guide tube and any of the second flow guide tubes are wrapped with geotextiles, and the geotextiles are fixed with cable ties.

[0014] In some implementations of the present invention, the slope of the slope finding layer is 3%.

[0015] In some implementations of the utility model, a leveling layer is provided on the slope layer, and the leveling layer is made of cement mortar.

[0016] Compared with the prior art, the technical solution of the present invention has at least the following advantages or beneficial effects:

[0017] In the utility model, when leakage occurs in the gap between the decorative layer and the thermal insulation layer to accumulate water or gas, the accumulated water or gas in the thermal insulation layer flows into the second guide tube through the second guide hole, and flows to the first guide tube under the drainage action of the second guide tube. The accumulated water or gas in the first guide tube flows to the drainage notch and is discharged from the downspout, thereby avoiding long-term immersion of the thermal insulation layer. The utility model can effectively prevent the surface of the decorative layer from efflorescence, arching and cracking due to thermal expansion and contraction, and aging and water leakage of the waterproof layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of an inverted roof structure that facilitates drainage and exhaust provided by an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the connection between the first flow guide pipe, the second flow guide pipe and the four-way joint provided in an embodiment of the utility model.

[0021] Icons: 100-structural layer, 111-drainage gap, 200-drainage ditch, 300-downspout, 400-slope layer, 500-waterproof layer, 600-first diversion pipe, 601-first diversion hole, 700-second diversion pipe, 701-second diversion hole, 800-insulation layer, 900-decorative layer. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention. Example

[0023] Reference Figure 1 and Figure 2The present embodiment provides an inverted roof structure for facilitating drainage and exhaust, comprising a structural layer 100, and a drainage ditch 200 and a slope layer 400 arranged on the structural layer 100. The slope of the slope layer 400 is 3%, and the thinnest thickness of the slope layer 400 is 30 mm. The slope layer 400 is 20 mm thick and the leveling layer is made of 1:3 cement mortar. The slope layer 400 is inclined toward the drainage ditch 200. The bottom of the drainage ditch 200 is provided with a plurality of drain ports 300 at intervals along its extension direction. The drain ports 300 The drainage ditch 200 is used to lead out accumulated water or gas. The spacing between any adjacent drain outlets 300 is equal. A waterproof layer 500, a thermal insulation layer 800 and a decorative layer 900 are sequentially overlapped on the upper side of the slope layer 400. A first guide pipe 600 is arranged at the bottom of the drainage ditch 200. The first guide pipe 600 is located at the center of the bottom of the drainage ditch 200. The first guide pipe 600 is arranged along the extension direction of the drainage ditch 200. The first guide holes 601 are arranged at intervals on the annular side of the first guide pipe 600 along its axial direction. The top of the first guide pipe 600 The first guide holes 601 are arranged on the left and right sides, which is more convenient for water flow and gas to enter, so that part of the gas and accumulated water can enter the first guide pipe 600 from the first guide hole 601. The first guide pipe 600 is located on the upper side of any of the above-mentioned water outlets 300. The first guide pipe 600 on the upper side of any of the above-mentioned water outlets 300 is partially disconnected to form a drainage gap 111, and the drainage gap 111 is connected to the water outlet 300; a plurality of second guide pipes 700 are arranged between the waterproof layer 500 and the thermal insulation layer 800, and the plurality of second guide pipes 700 are connected to the water outlet 300. The tubes 700 are arranged in parallel on the upper side of the above-mentioned waterproof layer 500, and any of the above-mentioned second guide tubes 700 is arranged along the inclined direction of the above-mentioned slope finding layer 400. One end of any of the above-mentioned second guide tubes 700 facing the above-mentioned drainage ditch 200 is connected to the above-mentioned second guide tube 700, and the ring side of the above-mentioned second guide tube 700 is provided with a plurality of second guide holes 701 at intervals along its axial direction, and the top side and left and right sides of the second guide tube 700 are provided with second guide holes 701, so as to ensure that accumulated water or gas can enter the second guide tube 700 from multiple directions, which is more practical.

[0024] Multiple second guide pipes 700 are evenly spaced apart in the same direction, and the first guide pipe 600 is partially disconnected to form a drainage gap 111, which separates the first guide pipe 600 into two independent tube bodies. The sides of the two independent tube bodies are flush with the inner side of the drain outlet 300, ensuring the smooth discharge of accumulated water or gas from the drain outlet 300.

[0025] The waterproof layer 500 is made of waterproof coiled material, the thermal insulation layer 800 is made of extruded polystyrene thermal insulation boards, and the decorative layer 900 is made of ceramic tile boards. Fine stone concrete is constructed on the thermal insulation layer 800 as a protective layer, and a steel bar structure is built into the protective layer.

[0026] In the present invention, when leakage occurs in the gap between the decorative layer 900 and the thermal insulation layer 800 and water or gas accumulates, the accumulated water or gas in the thermal insulation layer 800 flows into the second flow guide pipe 700 through the second flow guide hole 701, and flows to the first flow guide pipe 600 under the drainage action of the second flow guide pipe 700. The accumulated water or gas in the first flow guide pipe 600 flows to the drainage notch 111 and is discharged from the drain port 300, thereby avoiding long-term immersion of the thermal insulation layer 800. This allows the present application to effectively prevent the surface of the decorative layer 900 from efflorescence, arching and cracking due to thermal expansion and contraction, and aging and water leakage of the waterproof layer 500.

[0027] In some embodiments of the present invention, the number of the second flow guide tubes 700 is an even number, and the plurality of second flow guide tubes 700 are symmetrically distributed in pairs with respect to the first flow guide tubes 600;

[0028] The joints between any two symmetrically distributed second flow guiding pipes 700 and the first flow guiding pipe 600 are connected by a four-way joint.

[0029] In the above embodiment, slope layers 400 are arranged on both sides of the drainage ditch 200, and the second guide pipes 700 on the slope layers 400 on both sides are connected to the first guide pipe 600. The four-way joint can realize the quick connection between the first guide pipe 600 and the two second guide pipes 700.

[0030] In some implementations of the present invention, the first flow guiding tube 600 and the second flow guiding tube 700 are both made of PVC material.

[0031] In the above embodiment, the first flow guide tube 600 and the second flow guide tube 700 made of PVC material have the advantages of being waterproof and anti-slip, advanced wear-resistant and light in weight.

[0032] In some embodiments of the present invention, the first flow guide tube 600 and any of the second flow guide tubes 700 are wrapped with geotextiles, and the geotextiles are fixed with cable ties.

[0033] In the above embodiment, after the first flow conduit 600 and the second flow conduit 700 are wrapped with geotextile, mud and sand can be prevented from entering the first flow conduit 600 and the second flow conduit 700 to cause blockage. In addition, the tie band can achieve stable installation of the geotextile.

[0034] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An inverted roof structure that facilitates drainage and exhaust, characterized in that: It comprises a structural layer, and a drainage ditch and a slope layer arranged on the structural layer, wherein the slope layer is inclined toward the drainage ditch, a plurality of water outlets are arranged at intervals at the bottom of the drainage ditch along its extension direction, and a waterproof layer, a thermal insulation layer and a decorative layer are arranged in sequence on the upper side of the slope layer; A first flow guide pipe is provided at the bottom of the drainage ditch, the first flow guide pipe is provided along the extension direction of the drainage ditch, first flow guide holes are provided at intervals on the ring side of the first flow guide pipe along the axial direction thereof, the first flow guide pipe is located on the upper side of any of the water outlets, the first flow guide pipe on the upper side of any of the water outlets is partially disconnected to form a drainage gap, and the drainage gap is connected to the water outlet; A plurality of second flow guide pipes are arranged between the waterproof layer and the thermal insulation layer, and the plurality of second flow guide pipes are arranged in parallel on the upper side of the waterproof layer. Any second flow guide pipe is arranged along the inclination direction of the slope finding layer, and any second flow guide pipe is connected to the second flow guide pipe at one end toward the drainage ditch, and a plurality of second flow guide holes are arranged at intervals on the annular side of the second flow guide pipe along its axial direction.

2. The inverted roof structure for facilitating drainage and exhaust according to claim 1, characterized in that: The number of the second flow guiding tubes is an even number, and the plurality of second flow guiding tubes are symmetrically distributed in pairs with respect to the first flow guiding tube; The butt joints between any two symmetrically distributed second flow guide pipes and the first flow guide pipe are connected by a four-way joint.

3. The inverted roof structure for facilitating drainage and exhaust according to claim 1, characterized in that: The first flow guide pipe and the second flow guide pipe are both made of PVC material.

4. The inverted roof structure for facilitating drainage and exhaust according to claim 3, characterized in that: The first flow guide tube and any one of the second flow guide tubes are wrapped with geotextiles, and the geotextiles are fixed with cable ties.

5. The inverted roof structure for facilitating drainage and exhaust according to claim 1, characterized in that: The slope of the slope finding layer is 3%.

6. The inverted roof structure for facilitating drainage and exhaust according to claim 5, characterized in that: A leveling layer is arranged on the slope layer, and the leveling layer is made of cement mortar.

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