Tee joint for rain drainage

Abstract

The tee joint comprises a tee joint body and a ventilation cover, the tee joint body comprises a ventilation cover connecting port end, a vertical pipe lower connecting port end and a transverse pipe connecting port end, and the ventilation cover is arranged at the ventilation cover connecting port end of the tee joint body. The ventilation cover comprises a ventilation cover main body and ventilation ribs which are uniformly and circumferentially distributed on the outer side of the ventilation cover main body, a ventilation channel is formed between every two adjacent ventilation ribs, and the ventilation cover main body comprises a vertical pipe upper connector end at the upper part, a necking end at the lower part and a transition section at the middle part. The outer contour of the ventilation rib is matched with the inner shape of the ventilation cover connecting port end, and the ventilation cover is arranged on the ventilation cover connecting port end through the ventilation rib. Through the arrangement of the ventilation cover structure and the function of the ventilation channel formed by the ventilation ribs, the problem that when the rainwater flow reaches a certain degree and the vertical pipe generates positive and negative pressure, water return of the transverse pipe can occur under the condition that a traditional tee joint is adopted is solved, and normal drainage is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of rainwater drainage technology, specifically relating to a tee for rainwater drainage. Background Technology

[0002] According to the GB50015 standard for building water supply and drainage design, traditional roof and terrace rainwater systems are set up separately. In open balcony and terrace scenarios, two rainwater downpipes are required, occupying more downpipe space and increasing costs. This design is necessary because if balcony drainage and roof / terrace rainwater are combined, a traditional tee (structure as follows) would be used. Figure 1 As shown in the figure, when the rainwater flow reaches a certain level, the riser will continuously generate positive pressure, causing backflow in the horizontal pipe and preventing normal drainage. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a tee for rainwater drainage, solving the technical problem of backflow in the horizontal pipe of traditional tees.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A tee for rainwater drainage includes a tee body and a vent cover. The tee body includes a vent cover connection port, a downpipe connection port, and a horizontal pipe connection port. The vent cover is disposed on the vent cover connection port of the tee body. The vent cover includes a vent cover body and vent ribs evenly distributed circumferentially on the outside of the vent cover body. Ventilation channels are formed between adjacent vent ribs. The vent cover body includes an upper downpipe connection port, a lower constricted end, and a middle transition section.

[0006] Furthermore, the outer contour of the vent rib matches the inner shape of the vent cover connection port end, and the vent cover is set on the vent cover connection port end through the vent rib.

[0007] Furthermore, the diameter of the vent cover connection port is larger than the diameter of the riser connection port.

[0008] Furthermore, the diameter of the upper connection port of the riser is the same as the diameter of the lower connection port of the riser, and the diameter of the constricted end is smaller than the diameter of the lower connection port of the riser.

[0009] Furthermore, the top of the vent cover body is provided with an eave, and the vent rib is provided vertically through the entire vent cover body and the eave.

[0010] Furthermore, the outer diameter of the hood is larger than the outer diameter of the vent cap connection end.

[0011] This utility model solves the problem of backflow in the horizontal pipe that occurs when the rainwater flow reaches a certain level and the riser generates positive and negative pressure, thus enabling normal drainage. This is achieved by setting up a vent cover structure and using a vent channel formed by vent ribs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a traditional tee.

[0013] Figure 2 Schematic diagram of the overall structure of the tee for rainwater drainage of this utility model - 1;

[0014] Figure 3 Schematic diagram of the overall structure of the tee for rainwater drainage of this utility model - 2;

[0015] Figure 4 This is a cross-sectional structural diagram of the tee for rainwater drainage of this utility model;

[0016] Figure 5 This is a cross-sectional view of the main body of the tee of this utility model;

[0017] Figure 6 This is a three-dimensional structural diagram of the vent cover of this utility model;

[0018] Figure 7 This is a front view of the vent cover structure of this utility model;

[0019] Figure 8 This is a cross-sectional structural diagram of the vent cover of this utility model;

[0020] In the diagram: 1. Main body of the tee; 11. Vent cover connection port; 12. Lower connection port of the riser; 13. Horizontal connection port; 2. Vent cover; 21. Main body of the vent cover; 211. Upper connection port of the riser; 212. Narrow end; 213. Transition section; 22. Vent rib; 23. Vent channel; 24. Cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] like Figures 2-8As shown, a tee for rainwater drainage includes a tee body 1 and a vent cover 2. The tee body 1 includes a vent cover connection port 11, a riser connection port 12, and a horizontal pipe connection port 13. The vent cover 2 is disposed on the vent cover connection port 11 of the tee body 1. The vent cover 2 includes a vent cover body 21 and vent ribs 22 evenly distributed circumferentially on the outside of the vent cover body 21. Ventilation channels 23 are formed between adjacent vent ribs 22. The vent cover body 21 includes an upper riser connection port 211, a lower constricted end 212, and a middle transition section 213.

[0023] The outer contour of the vent rib 22 matches the inner shape of the vent cover connection port 11, and the vent cover 2 is set on the vent cover connection port 11 through the vent rib 22.

[0024] The diameter of the vent cap connection port 11 is larger than the diameter of the riser lower connection port 12. The diameter of the riser upper connection port 211 is the same as the diameter of the riser lower connection port 12, and the diameter of the constricted end 212 is smaller than the diameter of the riser lower connection port 12.

[0025] The top of the vent cover body 21 is also provided with a cover rim 24, and the vent rib 22 is provided vertically through the entire vent cover body 21 and cover rim 24. The outer diameter of the cover rim 24 is larger than the outer diameter of the vent cover connection end 11. During installation, the cover rim 24 is fitted onto the outside of the vent cover connection end 11.

[0026] This utility model, through the setting of the constricted end 212, can guide the water flow and prevent water from overflowing from the riser to the horizontal pipe; the outer surface of the vent cover body 21 is provided with multiple evenly distributed vent ribs 22, one of the functions of which is to balance the air pressure exchange between the riser and the external environment (atmosphere) when the riser is under positive or negative pressure, which is achieved through the ventilation channel 23 between the vent ribs 22; the second function is that the outer circle dimension of the vent ribs 22 is connected and fixed to the connection port 11 of the body-vent cover.

[0027] This utility model's technical solution, through the setting of the vent cover 2 structure and the function of the venting channel 23 formed by the venting ribs 22, solves the problem of backflow in the horizontal pipe that occurs when the rainwater flow reaches a certain level and the riser generates positive and negative pressure, thus achieving normal drainage.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tee for rainwater drainage, characterized in that, The device includes a three-way body (1) and a vent cover (2). The three-way body (1) includes a vent cover connection port (11), a riser lower connection port (12), and a horizontal pipe connection port (13). The vent cover (2) is set on the vent cover connection port (11) of the three-way body (1). The vent cover (2) includes a vent cover body (21) and vent ribs (22) evenly distributed circumferentially on the outside of the vent cover body (21). A ventilation channel (23) is formed between adjacent vent ribs (22). The vent cover body (21) includes an upper riser upper connection port (211), a lower constricted end (212), and a middle transition section (213).

2. A tee for rainwater drainage according to claim 1, characterized in that, The outer contour of the ventilation rib (22) matches the inner shape of the ventilation cover connection end (11), and the ventilation cover (2) is set on the ventilation cover connection end (11) through the ventilation rib (22).

3. A tee for rainwater drainage according to claim 1, characterized in that, The diameter of the vent cover connection port (11) is larger than the diameter of the riser connection port (12).

4. A tee for rainwater drainage according to claim 1, characterized in that, The diameter of the upper connection port (211) of the riser is the same as the diameter of the lower connection port (12) of the riser, and the diameter of the constricted end (212) is smaller than the diameter of the lower connection port (12) of the riser.

5. A tee for rainwater drainage according to claim 1, characterized in that, The top of the vent cover body (21) is also provided with a cover eave (24), and the vent rib (22) is provided to run through the entire vent cover body (21) and cover eave (24) from top to bottom.

6. A tee for rainwater drainage according to claim 5, characterized in that, The outer diameter of the cover (24) is larger than the outer diameter of the vent cover connection end (11).

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