A rainwater drainage system suitable for a balcony

Abstract

The utility model discloses a rainwater drainage system suitable for balcony, including roof rainwater bucket, confluence tee bend and balcony floor drain, roof rainwater bucket sets up on building roof ground, and the roof rainwater bucket bottom is connected with roof drainage pipe spare, balcony floor drain sets up in building balcony ground, and a plurality of balcony floor drain bottoms are connected with balcony drainage pipe spare respectively, roof drainage pipe spare and balcony drainage pipe spare are connected on confluence tee bend respectively, and are connected through drainage stand pipe between adjacent confluence tee bend, and then realize roof, balcony confluence integrated drainage, the utility model discloses the balcony drainage and roof drainage are gathered together, and effectively solved the problem that the independent drainage of current roof drainage and balcony drainage occupies big space.

Description

Technical Field

[0001] This utility model relates to the field of rainwater drainage pipe technology, specifically to a rainwater drainage system suitable for balconies. Background Technology

[0002] In existing buildings, most open balconies and terraces are equipped with two rainwater downpipes, which occupy a lot of downpipe space and are also costly. The reason for this design is that if the balcony drainage and the roof terrace rainwater are combined, when using a traditional tee, when the rainwater flow reaches a certain level, the downpipe will continuously generate positive pressure, causing backflow in the horizontal pipe and resulting in the inability to drain properly. Therefore, this utility model proposes a new rainwater drainage system suitable for balconies. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides a rainwater drainage system with a reasonable structural design suitable for balconies.

[0004] The technical solution of this utility model is as follows:

[0005] A rainwater drainage system suitable for balconies includes a roof rainwater hopper, a junction tee, and a balcony floor drain. The roof rainwater hopper is installed on the floor of the building's roof, and a roof drainage pipe is connected to the bottom of the roof rainwater hopper. The balcony floor drain is installed on the floor of the building's balcony. Multiple balcony floor drains are connected to balcony drainage pipes at their bottoms. The roof drainage pipes and balcony drainage pipes are respectively connected to the junction tee. Adjacent junction tees are connected by drainage risers, thereby realizing integrated drainage for the roof and balcony.

[0006] Furthermore, the merging tee includes a merging tee body and a vent cover. The merging tee body has a top opening, a side opening and a bottom opening. The vent cover is located at the top opening of the merging tee body, and there is a gap between the outer wall of the vent cover and the inner wall of the merging tee body for ventilation.

[0007] Furthermore, the vent cover has a receiving interface on the upper part and a insertion interface on the lower part. The insertion interface on the lower part of the vent cover adopts a narrowing structure, that is, the inner and outer diameters of the insertion interface are smaller than the inner and outer diameters of the top opening and bottom opening of the converging tee body, which plays a role in preventing overflow.

[0008] Furthermore, the outer surface of the vent cover is provided with multiple evenly distributed venting ribs along the circumferential direction, and ventilation channels are formed between adjacent venting ribs to play the role of exhausting air.

[0009] Furthermore, the top of the vent cover is folded outward to form an outer edge, and the vent rib extends to the bottom of the outer edge to facilitate ventilation.

[0010] The design concept of this utility model is as follows:

[0011] A rainwater drainage system suitable for balconies utilizes a tee with drainage and ventilation functions to prevent water from overflowing from the riser pipe into the horizontal pipe. The tee has a constricted section inside its vent cover, which is smaller than the upper and lower connection openings of the tee. This constricted section guides the water flow and prevents water from overflowing from the riser pipe into the horizontal pipe. At the same time, multiple evenly distributed ventilation ribs are set on the outer surface of the vent cover. Their function is to balance the air pressure exchange between the riser pipe and the external environment (atmosphere) when the riser pipe is under positive or negative pressure, thereby improving the drainage capacity of the riser pipe.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1) This utility model combines balcony drainage and roof drainage, effectively solving the problem of large space occupation caused by the existing independent drainage systems for roof drainage and balcony drainage;

[0014] 2) This utility model combines balcony drainage and roof drainage together, and utilizes the new type of converging tee with anti-backflow function to solve the problem of backflow in balcony drainage and inability to drain normally;

[0015] 3) The converging tee of this utility model can exchange with atmospheric pressure to improve the drainage capacity of the riser, which saves a lot of cost and space compared with the traditional balcony and roof drainage system (two risers). Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0017] Figure 2 This is an enlarged view of the structure at point A of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the converging tee of this utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the converging tee of this utility model;

[0020] Figure 5 This is a schematic diagram of the vent cover structure of this utility model;

[0021] In the diagram: 1. Roof rainwater hopper; 2. Balcony floor drain; 3. Junction tee; 301. Junction tee body; 302. Vent cover; 303. Top opening; 304. Side opening; 305. Bottom opening; 306. Socket joint; 307. Insert joint; 308. Vent rib; 309. Outer edge; 4. Roof drainage fittings; 5. Drainage riser; 6. Balcony drainage fittings. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, a rainwater drainage system suitable for balconies includes a roof rainwater hopper 1, a roof drainage pipe fitting 4, a balcony floor drain 2, a balcony drainage pipe fitting 6, a connecting tee 3, and a drainage riser 5.

[0024] The roof rainwater hopper 1 is installed on the roof of the building. The bottom of the roof rainwater hopper 1 is connected to the roof drainage pipe fitting 4. The roof drainage pipe fitting 4 includes a horizontal drainage pipe and a vertical drainage pipe 5. The horizontal drainage pipe is horizontally installed on the vertical drainage pipe 5 and is connected to the top opening 303 of the confluence tee 3 through the vertical drainage pipe 5.

[0025] The balcony floor drain 2 is installed on the floor of each balcony of the building. The bottom of the balcony floor drain 2 is connected to the balcony drainage pipe fitting 6. The roof drainage pipe fitting 4 is installed horizontally as a drainage horizontal pipe and is directly connected to the side opening 304 of the confluence tee 3.

[0026] like Figure 2 , 3 As shown in Figure 4, the converging tee 3 has drainage and ventilation functions to prevent water from the riser pipe from overflowing into the horizontal pipe. It includes a converging tee body 301 and a vent cover 302. The converging tee body 301 has a top opening 303, a side opening 304, and a bottom opening 305. The top opening 303 and the bottom opening 305 are connected to the connecting riser pipe 5, and the side opening 304 is connected to the balcony drainage pipe fitting 6.

[0027] like Figure 5 As shown, the upper part of the vent cover 302 is a receiving interface 306, and the lower part is a plug interface 307. The inner and outer diameters of the plug interface 307 are smaller than the inner and outer diameters of the receiving interface 306, the top opening 303, and the bottom opening 305. The top of the vent cover 302 flips outward to form an outer edge 309. A set of ventilation ribs 308 are evenly arranged along the circumference of the outer surface of the vent cover 302, and the ventilation ribs 308 extend to the bottom of the outer edge 309. The vent cover 302 is installed on the top of the main body 301 of the converging tee and is limited by the outer edge 309. The receiving interface 306 is used to connect and cooperate with the connecting riser 5. The plug interface 307 guides the water flow to prevent water from overflowing from the riser to the horizontal pipe. The function of the ventilation ribs 308 is to balance the air pressure exchange between the riser and the external environment (atmosphere) when the riser is under positive or negative pressure, thereby improving the drainage capacity of the riser. Compared with the traditional balcony and roof drainage system (two risers), it saves a lot of cost and space.

[0028] This utility model complies with Article 5.2.24 of GB50015 "Standard for Design of Building Water Supply and Drainage". The rainwater system of balconies and terraces shall comply with the following provisions: 3. When the rainwater from the roof downpipe is indirectly drained and the balcony drainage has technical measures to prevent backflow, the rainwater from the balcony can be connected to the roof downpipe.

[0029] This utility model reduces the space occupied by drainage pipes and improves the space utilization of building balconies. On the other hand, it adopts a three-way valve with drainage and ventilation functions, which has the function of preventing backflow and can improve the overall drainage capacity of the system.

[0030] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A rainwater drainage system suitable for balconies, characterized in that, It includes a roof rain hopper, a junction tee, and a balcony drain. The bottom of the roof rain hopper is connected to a roof drainage pipe fitting, and the bottom of the multiple balcony drains is connected to a balcony drainage pipe fitting. The roof drainage pipe fitting and the balcony drainage pipe fitting are respectively connected to the junction tee. Adjacent junction tees are connected by drainage risers, thereby realizing integrated drainage of the roof and balcony.

2. A rainwater drainage system suitable for balconies according to claim 1, characterized in that, The merging tee includes a merging tee body and a vent cover. The merging tee body has a top opening, a side opening and a bottom opening. The vent cover is located at the top opening of the merging tee body, and there is a gap between the outer wall of the vent cover and the inner wall of the merging tee body for ventilation.

3. A rainwater drainage system suitable for balconies according to claim 2, characterized in that, The vent cover has a receiving interface on the upper part and a insertion interface on the lower part. The insertion interface on the lower part of the vent cover adopts a narrowing structure, that is, the inner and outer diameters of the insertion interface are smaller than the inner and outer diameters of the top opening and bottom opening of the converging tee body.

4. A rainwater drainage system suitable for balconies according to claim 3, characterized in that, The outer surface of the vent cover is provided with multiple evenly distributed vent ribs along the circumferential direction, and ventilation channels are formed between adjacent vent ribs.

5. A rainwater drainage system suitable for balconies according to claim 4, characterized in that, The top of the vent cover is folded outward to form an outer edge, and the vent rib extends to the bottom of the outer edge.

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