External roof rainwater drainage structure

Abstract

The utility model relates to the technical field of roof drainage, and discloses an external roof rainwater drainage structure which comprises a roof, a building outer wall arranged on one side of the roof and a parapet wall arranged on the top of the building outer wall. A drainage hole is formed in the parapet wall, a drainage mechanism is arranged in the drainage hole, a drainage mechanism is arranged at the bottom of the drainage mechanism, and the drainage mechanism comprises a gutter inlet inner part arranged on the inner wall of the drainage hole, a steel grate arranged at the outer end of the gutter inlet inner part and a gutter inlet outer part extending to the outer side of the drainage hole. A waterproof layer is arranged on the surface of the gutter inlet inner part, the top of the steel grate is fixed to a parapet wall through expansion bolts, a water outlet is formed in the bottom of the gutter inlet outer part and is vertically downward, and the structure replaces an indoor drainage mode and has substantive significance on old community transformation.

Description

Technical Field

[0001] The utility model relates to the technical field of roof drainage, in particular to an external roof rainwater drainage structure. Background Art

[0002] Since most of the old residential communities were built in the 1980s and 1990s for pollution prevention, most of the old buildings’ rooftop rainwater discharge method is internal drainage, that is, the rooftop rainwater is discharged from the rainwater pipes installed indoors to the underground drainage system. Due to their long service life, the drainage pipes are aging and there is a risk of leakage. Since the pipes are mostly located in balconies, bathrooms and other places, most of them are sealed during residents’ renovation, resulting in inconvenience in maintenance. At the same time, the rainwater discharge process generates noise, which greatly affects the daily life of residents. Utility Model Content

[0003] The present application provides an external roof rainwater drainage structure to solve the problem of noise generated by leakage of indoor rainwater pipes in old residential areas.

[0004] In order to solve the above-mentioned technical problems, the present application provides an external roof rainwater drainage structure, comprising: a roof, a building exterior wall arranged on one side of the roof, and a parapet arranged on the top of the building exterior wall; a drainage hole is opened on the parapet, a drainage mechanism is arranged in the drainage hole, and a drainage mechanism is arranged at the bottom of the drainage mechanism, the drainage mechanism comprises a rainwater outlet inner part arranged on the inner wall of the drainage hole, a steel grate arranged at the outer end of the rainwater outlet inner part, and a rainwater outlet outer part extending to the outside of the drainage hole, the surface of the rainwater outlet inner part is provided with a waterproof layer, the top of the steel grate is fixed to the parapet by an expansion bolt, and the bottom of the rainwater outlet outer part is provided with a water outlet, and the water outlet is vertically downward.

[0005] In some embodiments of the present application, the drainage mechanism includes a rain gutter, a drainage pipe arranged at the bottom of the rain gutter, and a plurality of fixings arranged between the drainage pipe and the outer wall of the building, and a bent pipe is connected to the bottom of the drainage pipe.

[0006] In some embodiments of the present application, the fixing device includes a back plate arranged on the outer surface of the building's exterior wall, a first mounting column arranged on the side of the back plate away from the building's exterior wall, a second mounting column arranged on the outside of the first mounting column, a limiting ring fixed to the outside of the second mounting column, the second mounting column extending into the first mounting column, and bolts are arranged on the outer sides of the first mounting column and the second mounting column for limiting the displacement between the first mounting column and the second mounting column.

[0007] In some embodiments of the present application, the limiting ring is configured as two semicircular rings, one end of the two semicircular rings is fixedly connected, and the other end of the two semicircular rings is hinged.

[0008] In some embodiments of the present application, a first limiting sleeve is arranged in the limiting ring, a second limiting sleeve is arranged in the first limiting sleeve, and a contact piece is fixed to one end of the second limiting sleeve away from the first limiting sleeve, and a spring is arranged on the outer surfaces of the first limiting sleeve and the second limiting sleeve, and the two ends of the spring are respectively fixedly connected to the inner wall of the limiting ring and the contact piece.

[0009] In some embodiments of the present application, a waterproof protective layer is laid on the top of the roof and the inner side of the parapet.

[0010] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0011] The utility model replaces the pipe opening of the indoor rainwater pipe in the old residential area with an external drainage method, thereby reducing the noise generated during the rainwater discharge process and optimizing the daily life of the residents. By arranging a drainage mechanism and a drainage mechanism, rainwater from the roof can be quickly discharged to the ground. By arranging a steel grate, roof debris can be effectively intercepted to prevent the roof debris from entering the rainwater gutter or the drain pipe and causing blockage. By arranging a fixing part, the firmness of the drain pipe is guaranteed. By arranging a first limiting sleeve, a second limiting sleeve, a contact piece and a spring, when the amount of rainwater is too large and causes the drain pipe to shake, it can play a certain buffering effect on the shaking of the drain pipe. The utility model optimizes the roof rainwater discharge method, has substantial significance for the renovation of old residential areas, and can produce better results if promoted and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0013] Figure 2 It is a top view schematic diagram of a fixing member of an embodiment of the utility model.

[0014] In the figure, 100, roof; 200, building exterior wall; 300, parapet; 400, drainage mechanism; 410, rainwater outlet inner part; 420, steel grate; 430, rainwater outlet outer part; 440, waterproof layer; 450, water outlet; 500, drainage mechanism; 510, rainwater gutter; 520, drainage pipe; 530, fixing part; 531, back plate; 532, first mounting column; 533, second mounting column; 534, limiting ring; 535, first limiting sleeve; 536, second limiting sleeve; 537, contact piece; 538, spring; 540, bending tube; 600, waterproof protective layer. DETAILED DESCRIPTION

[0015] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating 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 application 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, and therefore should not be understood as a limitation on the present application.

[0017] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0018] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] like Figure 1 and 2 As shown, according to some embodiments of the present application, an external roof rainwater drainage structure includes: a building exterior wall 200 arranged on one side of a roof 100, and a parapet 300 arranged on the top of the building exterior wall 200; a drainage hole is opened on the parapet 300, a drainage mechanism 400 is arranged in the drainage hole, and a drainage mechanism 500 is arranged at the bottom of the drainage mechanism 400, the drainage mechanism 400 includes a rainwater inlet inner part 410 arranged on the inner wall of the drainage hole, a steel grate 420 arranged at the outer end of the rainwater inlet inner part 410, and a rainwater inlet outer part 430 extending to the outside of the drainage hole, a waterproof layer 440 is arranged on the surface of the rainwater inlet inner part 410, the top of the steel grate 420 is fixed to the parapet 300 by an expansion bolt, and a water outlet 450 is arranged at the bottom of the rainwater inlet outer part 430, and the water outlet 450 is vertically downward.

[0020] According to some embodiments of the present application, the drainage mechanism 500 includes a rain gutter 510, a drainage pipe 520 arranged at the bottom of the rain gutter 510, and a plurality of fixings 530 arranged between the drainage pipe 520 and the building exterior wall 200, and a bent pipe 540 is connected to the bottom of the drainage pipe 520.

[0021] According to some embodiments of the present application, the fixing member 530 includes a back plate 531 arranged on the outer surface of the building exterior wall 200, a first mounting column 532 arranged on the side of the back plate 531 away from the building exterior wall 200, a second mounting column 533 arranged on the outside of the first mounting column 532, a limiting ring 534 fixed to the outside of the second mounting column 533, the second mounting column 533 extends into the first mounting column 532, and the outer side surfaces of the first mounting column 532 and the second mounting column 533 are provided with bolts for limiting the displacement between the first mounting column 532 and the second mounting column 533.

[0022] According to some embodiments of the present application, the limiting ring 534 is configured as two semicircular rings, one end of the two semicircular rings is fixedly connected, and the other end of the two semicircular rings is hinged.

[0023] According to some embodiments of the present application, a first limiting sleeve 535 is provided in the limiting ring 534, a second limiting sleeve 536 is provided in the first limiting sleeve 535, and a contact piece 537 is fixed to one end of the second limiting sleeve 536 away from the first limiting sleeve 535, and a spring 538 is provided on the outer surfaces of the first limiting sleeve 535 and the second limiting sleeve 536, and the two ends of the spring 538 are respectively fixedly connected to the inner wall of the limiting ring 534 and the contact piece 537.

[0024] According to some embodiments of the present application, a waterproof protective layer 600 is laid on the top of the roof 100 and the inner side of the parapet 300 .

[0025] According to some embodiments of the present application, a construction method of an external roof rainwater drainage structure includes the following steps: S1, construction preparation: on-site investigation of the existing roof 100 drainage slope and the external wall attachments, and the location of the newly added drainage hole is determined by the principle of proximity;

[0026] S2, roof 100 slope adjustment: local adjustment of the roof 100 slope according to the determined rainwater outlet position;

[0027] S3. Treatment of the original drainage outlet: grout the original drainage outlet tightly and apply waterproof material on the surface;

[0028] S4. Opening a hole in the parapet 300: Opening a hole in the parapet 300 according to the determined position, elevation and size of the rainwater outlet. The size of the hole is 1-2 mm larger than the outer diameter of the rainwater outlet.

[0029] S5. Hole cleaning: clean the inner surface of the hole;

[0030] S6. Installation of rainwater outlet: The rainwater outlet adopts horizontal water outlet, including rainwater outlet inner part 410. Rainwater outlet outer part 430 and steel grate 420 are installed with screws to ensure stability and reliability; waterproof layer 440 and protective layer are constructed around the rainwater outlet, and waterproof layer 440 penetrates into the rainwater outlet outer part 430; rainwater outlet inner part 410 is installed, and rainwater outlet inner part 410 presses waterproof layer 440; steel grate 420 is installed, and the outer side of steel grate 420 is fixed to the inner side of parapet 300 with expansion bolts

[0031] S7. Installation of water bucket: The water bucket is placed under the rainwater outlet outer part 430 and fixed to the outer wall with expansion screws;

[0032] S8. Installation of rainwater pipe: The rainwater pipe is connected to the water bucket and installed downwards in sequence, and fixed to the outer wall with a fixing mechanism;

[0033] S9. Drainage test: After completing the above steps, conduct a drainage test to check the drainage effect and sealing performance.

[0034] In summary, the utility model relates to the technical field of roof drainage, and discloses an external roof rainwater discharge structure, comprising: a roof, a building exterior wall arranged on one side of the roof, and a parapet arranged on the top of the building exterior wall; a drainage hole is opened on the parapet, a drainage mechanism is arranged in the drainage hole, and a drainage mechanism is arranged at the bottom of the drainage mechanism, the drainage mechanism comprises a rainwater outlet inner part arranged on the inner wall of the drainage hole, a steel grate arranged at the outer end of the rainwater outlet inner part, and a rainwater outlet outer part extending to the outside of the drainage hole, a waterproof layer is arranged on the surface of the rainwater outlet inner part, the top of the steel grate is fixed to the parapet by an expansion bolt, and a water outlet is arranged at the bottom of the rainwater outlet outer part, and the water outlet is vertically downward. This structure replaces the indoor drainage method and has substantial significance for the renovation of old communities.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An external roof rainwater drainage structure, comprising: A roof (100), a building exterior wall (200) arranged on one side of the roof (100), and a parapet (300) arranged on the top of the building exterior wall (200); characterized in that a drainage hole is opened on the parapet (300), a drainage mechanism (400) is arranged in the drainage hole, a drainage mechanism (500) is arranged at the bottom of the drainage mechanism (400), and the drainage mechanism (400) includes a rainwater inlet inner part (400) arranged on the inner wall of the drainage hole. 10), a steel grate (420) arranged at the outer end of the rainwater outlet inner member (410), and a rainwater outlet outer member (430) extending to the outside of the drainage hole, the surface of the rainwater outlet inner member (410) is provided with a waterproof layer (440), the top of the steel grate (420) is fixed to the parapet (300) by expansion bolts, the bottom of the rainwater outlet outer member (430) is provided with a water outlet (450), the water outlet (450) is vertically downward, and the drainage mechanism (5 00) comprises a rain gutter (510), a drainage pipe (520) arranged at the bottom of the rain gutter (510), and a plurality of fixing members (530) arranged between the drainage pipe (520) and the building outer wall (200), wherein the bottom of the drainage pipe (520) is connected to a bent pipe (540), and the fixing member (530) comprises a back plate (531) arranged on the outer surface of the building outer wall (200), and the back plate (531) is arranged away from the building outer wall (200). 0) on one side, a first mounting column (532) arranged on the outside of the first mounting column (532), a second mounting column (533) fixed to the outside of the second mounting column (533), the second mounting column (533) extending into the first mounting column (532), and bolts are arranged on the outer side surfaces of the first mounting column (532) and the second mounting column (533) for limiting the displacement between the first mounting column (532) and the second mounting column (533).

2. The external roof rainwater drainage structure according to claim 1, characterized in that: The limiting ring (534) is configured as two semicircular rings, one end of the two semicircular rings is fixedly connected, and the other end of the two semicircular rings is hinged.

3. The external roof rainwater drainage structure according to claim 1, characterized in that: The limiting ring (534) is provided with a first limiting sleeve (535), a second limiting sleeve (536) provided in the first limiting sleeve (535), and a contact piece (537) fixed to one end of the second limiting sleeve (536) away from the first limiting sleeve (535), and the outer surfaces of the first limiting sleeve (535) and the second limiting sleeve (536) are provided with a spring (538), and the two ends of the spring (538) are respectively fixedly connected to the inner wall of the limiting ring (534) and the contact piece (537).

4. The external roof rainwater drainage structure according to claim 1, characterized in that: The top of the roof (100) and the inner side of the parapet (300) are both paved with a waterproof protective layer (600).

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