Roof double-layer inner drainage device

Abstract

The utility model relates to the technical field of building construction, in particular to a roof double-layer inner drainage device which comprises a base layer and further comprises a pre-buried downpipe buried in the base layer, an annular wing plate is horizontally fixed to the top end of the outer side wall of the pre-buried downpipe, and the lower surface of the annular wing plate is attached to the upper surface of the base layer. A water stop ring is horizontally fixed to the outer side wall of the pre-buried downpipe and buried in the base layer, an inner drainage pipe is inserted into the pre-buried downpipe, a protective cover is installed at the top end of the inner drainage pipe, a positioning clamping ring is horizontally arranged on the outer side wall of the inner drainage pipe, and the lower surface of the positioning clamping ring is attached to the upper surface of the annular wing plate. The problems that according to an existing downpipe drainage system, the heat preservation performance is reduced and mildewing is caused due to the fact that water accumulation in a heat preservation layer cannot be effectively treated, accumulated water permeating into a roof from the roof damages a building structure, and a downpipe is prone to being blocked are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a double-layer internal drainage device for a roof. Background Art

[0002] The existing roofing practice is usually to lay the first waterproof layer, isolation layer, slope layer, insulation layer, leveling layer, second waterproof layer, isolation layer and protective layer on the base layer in sequence. Each layer has its specific function and together constitutes the roof protection system. In order to ensure that the roof can effectively drain the accumulated water and prevent the accumulated water from damaging the roof structure, a special drainage system is usually added to the design. At present, the roof drainage system of most buildings still relies on the traditional downspout drainage system, which usually includes the roof's water collection area, rainwater outlet, connected downspouts and the final discharge outlet. The water collection area collects the water on the roof and guides it to the ground or the rainwater drainage system through the rainwater outlet and the vertically arranged downspouts.

[0003] However, the existing downpipe drainage system has the following problems in actual application: First, the downpipe drainage system is often unable to effectively deal with the problem of moisture inside the insulation layer, and when the second waterproof layer of the roof fails, the water on the roof seeps into the roof and cannot be eliminated. As time goes by, the accumulation of moisture in the insulation layer will reduce the thermal insulation performance and may cause mildew. The accumulated water seeping into the roof from the roof will further damage the first waterproof layer and make it ineffective, thereby causing water to penetrate into the roof structure, causing potential harm to the building; in addition, the rainwater inlet is usually located above the roof, and when there are a lot of debris such as leaves and dust, they will enter the downpipe and cause it to be blocked.

[0004] Therefore be necessary to invent a kind of roof double-layer internal drainage device to solve the above problems. Utility Model Content

[0005] In order to solve the problems that the existing downpipe drainage system cannot effectively deal with the accumulation of moisture inside the insulation layer, resulting in a decrease in insulation performance and mildew, and the accumulated water seeping into the roof easily causes damage to the building structure, and the downpipe is easily blocked, the utility model provides a double-layer roof internal drainage device.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A double-layer internal drainage device for a roof includes a base layer and a pre-buried downpipe buried in the base layer. An annular wing plate is horizontally fixed to the top end of the outer wall of the pre-buried downpipe, and the lower surface of the annular wing plate is in contact with the upper surface of the base layer. A water stop ring is horizontally fixed to the outer wall of the pre-buried downpipe, and the water stop ring is buried in the base layer. An inner drainage pipe is inserted into the pre-buried downpipe, a protective cover is installed at the top end of the inner drainage pipe, a positioning clip is horizontally provided on the outer wall of the inner drainage pipe, and the lower surface of the positioning clip is in contact with the upper surface of the annular wing plate.

[0008] Furthermore, the internal drainage pipe includes a first pipe section and a tail pipe section, and several intermediate pipe sections are threadedly connected between the first pipe section and the tail pipe section. Two adjacent intermediate pipe sections are threadedly connected, the protective cover is installed at the top of the first pipe section, and the positioning clamp is fixed to the outer wall of the tail pipe section.

[0009] Furthermore, the outer side wall of the inner drainage pipe is fixed with several supporting vertical plates distributed along the circumferential direction, the positioning clamp is fixed to the lower surface of the several supporting vertical plates, and a filter mesh is horizontally arranged between the positioning clamp and the outer side wall of the inner drainage pipe.

[0010] Furthermore, a limiting clamp ring is fixed on the upper surface of the annular wing plate, and the positioning clamp ring is clamped on the inner side of the limiting clamp ring.

[0011] Furthermore, a guide port is provided on the protective cover.

[0012] Furthermore, a moisture-proof ring is fixed on the inner wall of the embedded downpipe and below the bottom end of the inner drainage pipe 5, and the inner diameter of the moisture-proof ring is less than or equal to the inner diameter of the inner drainage pipe.

[0013] Furthermore, the outer diameter of the inner drainage pipe is smaller than the inner diameter of the embedded downpipe.

[0014] The structural design of the utility model is reasonable and reliable. It can not only quickly drain water from the roof, but also effectively deal with the moisture accumulated in the insulation layer. When the second waterproof layer of the roof fails and the water on the roof seeps into the interior of the roof, it can also be effectively drained, which can significantly improve the durability and functionality of the roof system and provide more comprehensive protection for the building; at the same time, it prevents external debris from directly falling into the internal drainage pipe and causing the drainage channel to be blocked; it also has a moisture-proof function, which prevents the moisture generated in the embedded downpipe from rising to the insulation layer, and keeps the insulation layer dry; and it is applicable to roofs of different thicknesses and has a wide range of applications; in addition, it has the advantages of easy installation, easy maintenance and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0016] Figure 2This is a schematic diagram of the structure of the utility model Figure 2 .

[0017] Figure 3 It is a structural schematic diagram of the inner drainage pipe in the utility model.

[0018] Figure 4 It is along Figure 3 Sectional view along line AA.

[0019] Figure 5 It is a top view of the embedded downpipe in the utility model.

[0020] In the figure: 1. Base layer; 2. Pre-buried downpipe; 3. Annular wing plate; 4. Water stop ring; 5. Internal drainage pipe; 6. Protective cover; 7. Positioning clamp; 8. Support vertical plate; 9. Filter mesh; 10. Limiting clamp; 11. Diversion port; 12. Moisture-proof ring. DETAILED DESCRIPTION

[0021] A double-layer internal drainage device for roof, as shown in the following Figure 1 ~Attached Figure 5 As shown, it includes a base layer 1 and a pre-buried downpipe 2 buried in the base layer 1. An annular wing plate 3 is horizontally fixed to the top of the outer wall of the pre-buried downpipe 2, and the lower surface of the annular wing plate 3 is in contact with the upper surface of the base layer 1. A water stop ring 4 is horizontally fixed to the outer wall of the pre-buried downpipe 2, and the water stop ring 4 is buried in the base layer 1. An inner drainage pipe 5 is inserted in the pre-buried downpipe 2, and a protective cover 6 is installed at the top of the inner drainage pipe 5. A positioning clip 7 is horizontally provided on the outer wall of the inner drainage pipe 5, and the lower surface of the positioning clip 7 is in contact with the upper surface of the annular wing plate 3.

[0022] The present invention utilizes a double-layer drainage design formed by an inner drain pipe 5 and a pre-buried downpipe 2 to effectively drain water from the roof and manage water accumulation within the roof. On the one hand, accumulated water on the roof can enter the inner drain pipe 5 through the diversion port 11 on the protective cover 6 and then be discharged through the pre-buried downpipe 2. On the other hand, when the roof's second waterproof layer fails, causing accumulated water to enter the roof from the roof surface, or when moisture accumulates within the insulation layer, this accumulated water can flow along the outer wall of the inner drain pipe 5 through the filter mesh 9 into the drainage channel formed between the outer wall of the inner drain pipe 5 and the inner wall of the pre-buried downpipe 2, and ultimately be discharged through the pre-buried downpipe 2. The annular wing plate 3 provides positioning and support; the waterstop ring 4 prevents moisture from penetrating from around the pre-buried downpipe 2 into the roof's base layer 1; the protective cover 6 prevents external debris from directly falling into the inner drain pipe 5 and causing blockage in the drainage channel. The protective cover 6 is removable for easy maintenance and cleaning; and the positioning clip 7 is used to position the inner drain pipe 5.

[0023] The internal drainage pipe 5 includes a first pipe section and a tail pipe section. Several intermediate pipe sections are threadedly connected between the first pipe section and the tail pipe section. Two adjacent intermediate pipe sections are threadedly connected. The protective cover 6 is installed on the top of the first pipe section, and the positioning clamp 7 is fixed to the outer wall of the tail pipe section.

[0024] The structural design of the inner drainage pipe 5 allows its length to be adjusted according to the specific conditions of the roof, making the application range of the device wider.

[0025] The outer wall of the inner drainage pipe 5 is fixed with several supporting vertical plates 8 distributed along the circumferential direction, the positioning clamp 7 is fixed to the lower surface of the several supporting vertical plates 8, and a filter mesh 9 is horizontally arranged between the positioning clamp 7 and the outer wall of the inner drainage pipe 5.

[0026] The support vertical plate 8 is used to connect the positioning clamp ring 7 and the internal drainage pipe 5. The filter mesh 9 can filter out the debris entering the embedded downpipe 2 to prevent the drainage device from being blocked.

[0027] A limiting snap ring 10 is fixed on the upper surface of the annular wing plate 3 , and a positioning snap ring 7 is clamped on the inner side of the limiting snap ring 10 .

[0028] The structure of the limiting clamp ring 10 is designed to fix the positioning clamp ring 7 to ensure the stable position of the inner drain pipe 5.

[0029] The protective cover 6 is provided with a flow guide port 11 .

[0030] The diversion port 11 is used to guide the water on the roof to enter the inner drainage pipe 5.

[0031] A moisture-proof ring 12 is fixed to the inner wall of the embedded downpipe 2 and below the bottom end of the inner drainage pipe 5 , and the inner diameter of the moisture-proof ring 12 is less than or equal to the inner diameter of the inner drainage pipe 5 .

[0032] The structural design of the moisture-proof ring 12 can prevent moisture generated in the pre-buried downpipe 2 from rising to the insulation layer, thereby keeping the insulation layer dry.

[0033] The outer diameter of the inner drainage pipe 5 is smaller than the inner diameter of the pre-buried downpipe 2 .

[0034] This structural design can ensure that a drainage channel can be formed between the outer side wall of the inner drainage pipe 5 and the inner side wall of the embedded downpipe 2, thereby facilitating the smooth discharge of moisture entering the interior of the roof.

[0035] During installation, first ensure that the embedded downpipe 2 has been embedded in the base layer 1 during construction, and the water stop ring 4 is also welded and fixed to the embedded downpipe 2 and embedded in the base layer 1. At the same time, the lower surface of the annular wing plate 3 is in contact with the upper surface of the base layer 1. Then, adjust the length of the inner drainage pipe 5 according to the actual thickness of the roof, insert it into the embedded downpipe 2, and position the inner drainage pipe 5 by clamping the positioning clamp 7 on the inner side of the limit clamp 10. Then, install the protective cover 6 on the top of the inner drainage pipe 5, and then you can carry out the first waterproof layer on the base layer 1 in sequence. , isolation layer, slope layer, insulation layer, leveling layer, second waterproof layer, isolation layer and protective layer. After the construction is completed, it is necessary to ensure that the upper surface of the protective layer is in contact with the lower end of the protective cover 6, and the sealing material is filled between the protective layer and the top of the outer wall of the inner drainage pipe 5, thereby completing the installation of the device; it overcomes the problems of the existing downpipe drainage system that cannot effectively deal with the accumulation of moisture inside the insulation layer, resulting in a decrease in thermal insulation performance and mildew, and the accumulated water seeping into the roof from the roof can easily damage the building structure, and the downpipe is prone to blockage.

[0036] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer internal drainage device for a roof, comprising a base layer (1), characterized in that: The utility model further comprises a pre-buried downpipe (2) buried in the base layer (1), an annular wing plate (3) is horizontally fixed to the top of the outer wall of the pre-buried downpipe (2), and the lower surface of the annular wing plate (3) is in contact with the upper surface of the base layer (1), a water stop ring (4) is horizontally fixed to the outer wall of the pre-buried downpipe (2), and the water stop ring (4) is buried in the base layer (1), an inner drainage pipe (5) is inserted in the pre-buried downpipe (2), a protective cover (6) is installed at the top of the inner drainage pipe (5), a positioning clamp (7) is horizontally provided on the outer wall of the inner drainage pipe (5), and the lower surface of the positioning clamp (7) is in contact with the upper surface of the annular wing plate (3).

2. A double-layer internal drainage device for roofing according to claim 1, characterized in that: The inner drainage pipe (5) comprises a first pipe section and a tail pipe section, wherein a plurality of intermediate pipe sections are threadedly connected between the first pipe section and the tail pipe section, and two adjacent intermediate pipe sections are threadedly connected, a protective cover (6) is mounted on the top end of the first pipe section, and a positioning clamp (7) is fixed to the outer side wall of the tail pipe section.

3. The double-layer internal drainage device for roof according to claim 1, characterized in that: The outer side wall of the inner drainage pipe (5) is fixed with a plurality of support vertical plates (8) distributed along the circumferential direction, a positioning clamp (7) is fixed to the lower surface of the plurality of support vertical plates (8), and a filter mesh (9) is horizontally arranged between the positioning clamp (7) and the outer side wall of the inner drainage pipe (5).

4. The double-layer internal drainage device for roof according to claim 1, characterized in that: A limiting snap ring (10) is fixed on the upper surface of the annular wing plate (3), and a positioning snap ring (7) is clamped on the inner side of the limiting snap ring (10).

5. The double-layer internal drainage device for roof according to claim 1, characterized in that: The protective cover (6) is provided with a flow guide port (11).

6. The double-layer internal drainage device for roof according to claim 1, characterized in that: A moisture-proof ring (12) is fixed to the inner side wall of the pre-buried downpipe (2) and below the bottom end of the inner drainage pipe (5), and the inner diameter of the moisture-proof ring (12) is smaller than or equal to the inner diameter of the inner drainage pipe (5).

7. The double-layer internal drainage device for roof according to claim 1, characterized in that: The outer diameter of the inner drainage pipe (5) is smaller than the inner diameter of the pre-buried downpipe (2).

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