Siphon type roof drain applied to roof

Abstract

The utility model discloses a siphonic roof drain applied to a roof. The siphonic roof drain is characterized by comprising a flow guide and stabilization cover, a sunken roof drain body and a flow guide water outlet pipe, the flow guide water outlet pipe is mounted at the bottom of the sunken roof drain body; the flow guiding and stabilizing cover is mounted at the top of the sunken roof drain body; the flow guiding and stabilizing cover is a cylindrical grid, when rainwater is collected into the sinking type rainwater hopper body in an express mode, the cylindrical grid can stabilize the rainwater, and fluctuation caused by the fact that the rainwater is collected into the sinking type rainwater hopper body at a high speed is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to rainwater bucket technical field, especially in a kind of siphon rainwater bucket applied to roof. BACKGROUND

[0002] Siphon rainwater head is the key part of roof siphon drainage system, and the most important thing for siphon rainwater bucket for roof siphon rainwater drainage system is to adjust the state and flow state of rainwater gradually entering the pipeline system, so as to achieve stable air isolation into the pipeline system. If air cannot be stably isolated into the pipeline system, it will be continuously affected by air mass fluctuation in the pipeline, making it difficult to achieve self-cleaning flow rate under the condition of small amount of rainwater, causing poor drainage and easy to block. Under the condition of large amount of rainwater, it is difficult to form siphon, which leads to low drainage efficiency and roof water phenomenon.

[0003] A siphon rainwater bucket disclosed in Chinese Utility Model Patent No. CN216892748U includes a fairing and a collector disc. The fairing is arranged at the upper end of the collector disc. The middle part of the collector disc is concave. The upper surface of the outer edge of the collector disc is a first step. The upper surface of the middle part of the collector disc is a second step. A through hole is arranged on the second step. The lower surface of the outer edge of the fairing is provided with a plurality of first flaps distributed in a circumferential direction. The lower end of the first flaps abuts against the first step. The upper surface of the collector disc is provided with a plurality of second flaps distributed in a circumferential direction. The second flaps extend from the outer edge of the collector disc to the edge of the through hole. The siphon rainwater bucket can prevent vortex and blockage, and has good drainage effect. However, it cannot stably isolate air into the pipeline system. SUMMARY

[0004] The technical problem to be solved by the utility model lies in providing a siphon rainwater bucket applied to roof, which changes the state and flow state of rainwater at the water inlet, prevents blockage on the side of the water inlet, prevents blockage caused by difficulty in achieving self-cleaning flow rate under the condition of small amount of rainwater, prevents vertical shaft vortex, and prevents unstable siphon.

[0005] The technical problem to be solved by the utility model can be solved by the following technical scheme.

[0006] A siphon rainwater bucket applied to roof includes a flow guiding and stabilizing cover, a sunken rainwater bucket body, and a flow guiding outlet pipe. The flow guiding outlet pipe is installed at the bottom of the sunken rainwater bucket body. The flow guiding and stabilizing cover is installed at the top of the sunken rainwater bucket body. The flow guiding and stabilizing cover is a cylindrical grid. When rainwater flows into the sunken rainwater bucket body at a fast speed, the cylindrical grid can stabilize the rainwater and effectively prevent the fluctuation caused by rainwater flowing into the sunken rainwater bucket body at a fast speed.

[0007] In one preferred embodiment of the utility model, the sunken rainwater bucket body further includes a lining plate, the lining plate is also disc-shaped, has a second drain port in the center, the lining plate is installed on the top surface of the disc-shaped bucket body part, the flow guide and flow stabilizing cover is installed on the top surface of the lining plate, and the second drain port is centered with and communicated with the first drain port.

[0008] In one preferred embodiment of the utility model, the sunken rainwater bucket body further includes a lining plate, the lining plate is also disc-shaped, has a second drain port in the center, the lining plate is installed on the top surface of the disc-shaped bucket body part, the flow guide and flow stabilizing cover is installed on the top surface of the lining plate, and the second drain port is centered with and communicated with the first drain port.

[0009] In one preferred embodiment of the utility model, the cylindrical grid is composed of a plurality of top anti-vortex pressing plates, a disc and a flange arranged at intervals along the circumference, the upper end of each top anti-vortex pressing plate is connected with the disc, the lower end of each top anti-vortex pressing plate is connected with the flange, the flange is pressed on the lining plate, and the disc is connected with the disc-shaped bucket body part through a plurality of bolts integrally formed on the disc-shaped bucket body part and nuts screwed on the bolts.

[0010] In one preferred embodiment of the utility model, the top of each top anti-vortex pressing plate is protruding and has a sharp angle.

[0011] In one preferred embodiment of the utility model, adjacent top anti-vortex pressing plates have a side water inlet and a top water inlet that are communicated with each other.

[0012] In one preferred embodiment of the utility model, a flow guide rib is arranged on the inner wall of the flow guide outlet pipe along the water outlet direction.

[0013] In one preferred embodiment of the utility model, a sealing ring is arranged on the outer ring of the flow guide outlet pipe.

[0014] Due to the above technical scheme, when rainwater flows into the sunken rainwater bucket body, each top anti-vortex pressing plate can stabilize the rainwater, effectively preventing the fluctuation caused by the rainwater flowing into the rainwater bucket at a relatively fast speed, and effectively preventing the effect of the rainwater in the later period, the top water inlet formed between the plurality of top anti-vortex pressing plates also prevents the side water inlet from being blocked and unable to normally drain water, the disc cooperates with the flow guide outlet pipe to prevent vertical shaft vortex, and the effect of steam-water separation is achieved.

[0015] The utility model has the following advantages:

[0016] 1. Anti-clogging: since the flow guide and flow stabilizing cover has a side water inlet and a top water inlet, the problem of clogging of the side water inlet caused by roof garbage is effectively solved, and normal drainage can still be achieved.

[0017] 2. Anti-vortex: due to the flow guide fairing is provided with several top anti-vortex pressure plate matched with the flow guide rib on the inner wall of the flow guide outlet pipe, effectively solve the problem of vortex air entrainment when rainwater into the sink type rainwater inlet body drop into the rainwater pipe.

[0018] 3. Anti-infiltration: due to the sealing ring is arranged on the outer ring of the flow guide outlet pipe, the problem of leakage at the connection between the roof and the lower pipeline can be effectively solved when the utility model is installed at the concrete roof floor.

[0019] 4. Shorten the siphon starting time: the cylindrical grid of the flow guide fairing effectively solves the fluctuating flow state of rainwater into the sink type rainwater inlet body, matched with several top anti-vortex pressure plate opinion setting on the flow guide rib on the inner wall of the flow guide outlet pipe, greatly solves the problem of siphon instability caused by rainwater in unstable state into the sink type rainwater inlet body, achieves the purpose of shortening the siphon starting time.

[0020] 5. Large drainage flow of rainwater inlet: due to the stable flow of rainwater into the sink type rainwater inlet body, when gradually reaching the siphon full pipe flow, the drainage flow is larger than the existing rainwater inlet drainage flow on the market. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic view of the siphon type rainwater inlet applied to the roof of the utility model.

[0022] Figure 2 It is a front view of the siphon type rainwater inlet applied to the roof of the utility model.

[0023] Figure 3 It is a top view of Figure 2 .

[0024] Figure 4 It is a bottom view of Figure 2 .

[0025] Figure 5 It is a sectional view of the siphon type rainwater inlet applied to the roof of the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further described below in combination with the drawings and specific embodiments.

[0027] Referring to Figures 1 to 5 , a siphon type rainwater inlet applied to the roof shown in the figure, including: flow guide fairing 100, sink type rainwater inlet body 200, flow guide outlet pipe 300.

[0028] The sunken rainwater bucket body 200 comprises a disc-shaped bucket body part 210, a water collecting cavity 211 and a drain port 212 (the first drain port mentioned above) are arranged at the center of the disc-shaped bucket body part 210, and the water collecting cavity 211 is communicated with the drain port 212; in addition, the sunken rainwater bucket body 200 further comprises a lining plate 220, the lining plate 220 is also disc-shaped, a drain port 221 is arranged at the center of the lining plate 220, the lining plate 220 is installed on the top surface of the disc-shaped bucket body part 210, and the drain port 221 is centered and communicated with the drain port 212.

[0029] The flow guide and flow stabilizing cover 100 is installed on the top surface of the lining plate 220 and located at the top of the sunken rainwater bucket body 200; the flow guide and flow stabilizing cover 100 is made of stainless steel and is a cylindrical grid, when rainwater flows into the sunken rainwater bucket body 200 at a high speed, the cylindrical grid can stabilize the rainwater, and effectively prevent the fluctuation caused by the rainwater flowing into the sunken rainwater bucket body 200 at a high speed.

[0030] The cylindrical grid is composed of a plurality of top anti-vortex pressing plates 110, a disc 120 and a flange 130 arranged in a circumferential interval, the upper end of each top anti-vortex pressing plate 110 is connected with the disc, and the lower end of each top anti-vortex pressing plate 110 is connected with the flange 130; the top of each top anti-vortex pressing plate 110 is provided with a protruding sharp corner 111. Adjacent top anti-vortex pressing plates 110 are provided with a side water inlet 140 and a top water inlet 150 which are communicated with each other.

[0031] When the flow guide and flow stabilizing cover 100 is installed, the flange 130 is press-fitted on the top of the lining plate 220, and the disc 120 is connected with the disc-shaped bucket body part 210 through a plurality of bolts 213 integrally formed on the disc-shaped bucket body part 210 and nuts 214 screwed on the bolts 213.

[0032] The flow guide and flow stabilizing cover 100 is installed on the top of the lining plate 220 and located at the top of the sunken rainwater bucket body 200; the flow guide and flow stabilizing cover 100 is made of stainless steel and is a cylindrical grid, when rainwater flows into the sunken rainwater bucket body 200 at a high speed, the cylindrical grid can stabilize the rainwater, and effectively prevent the fluctuation caused by the rainwater flowing into the sunken rainwater bucket body 200 at a high speed.

[0033] Through detection, the maximum measured flow of the siphon rainwater bucket applied to a roof is shown in Table 1.

[0034] Table 1

[0035]

Claims

1. A siphonic roof drain comprising: It comprises: a flow guide and flow stabilizer, a sunken rainwater collector body, and a flow guide outlet pipe; the flow guide and flow stabilizer is installed on the top of the sunken rainwater collector body; the flow guide and flow stabilizer is a cylindrical grid, which can stabilize the rainwater when the rainwater flows into the sunken rainwater collector body at a high speed, effectively preventing the fluctuation caused by the rainwater flowing into the sunken rainwater collector body at a high speed. The sunken rainwater collector body comprises a disc-shaped body part, a water collecting cavity and a first drainage port are arranged in the center of the disc-shaped body part, the water collecting cavity is in communication with the first drainage port; the flow guide outlet pipe is installed at the bottom of the disc-shaped body part and is in butt joint communication with the first drainage port; the flow guide and flow stabilizer is installed on the top surface of the disc-shaped body part.

2. A siphonic roof drain as defined in claim 1, wherein: The sunken rainwater collector body further comprises a lining plate, the lining plate is also disc-shaped and has a second drainage port in the center, the lining plate is installed on the top surface of the disc-shaped body part, the flow guide and flow stabilizer is installed on the top surface of the lining plate, and the second drainage port is in centering and communication with the first drainage port.

3. A siphonic roof drain as defined in claim 2, wherein: The cylindrical grid is composed of a plurality of top anti-vortex pressing plates, a disc and a flange arranged at intervals in a circle, the upper end of each top anti-vortex pressing plate is connected with the disc, the lower end of each top anti-vortex pressing plate is connected with the flange, the flange is pressed on the lining plate, and the disc is connected with the disc-shaped body part through a plurality of bolts integrally formed on the disc-shaped body part and nuts screwed on the bolts.

4. A siphonic roof drain as defined in claim 3, wherein: The top of each top anti-vortex pressing plate is a protruding sharp corner.

5. A siphonic roof drain according to claim 4, wherein: Adjacent top anti-vortex pressing plates have side water inlets and top water inlets in communication with each other.

6. A siphonic roof drain according to claim 5, wherein: A flow guide rib is arranged on the inner wall of the flow guide outlet pipe along the water outlet direction.

7. A siphonic roof drain as defined in claim 6, wherein: A sealing ring is arranged on the outer ring of the flow guide outlet pipe.

8. A siphonic roof drain as defined in claim 7, wherein: ​

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