Large-flow siphon roof drain

Abstract

The utility model discloses a large-flow siphon roof drain, and relates to the field of roof drains. A large-flow siphon roof drain comprises a base plate and a flow guide cover detachably connected to the base plate, a fixed plate is fixedly connected into the base plate, and a bolt is fixedly connected to the fixed plate; the sleeve is fixedly connected to the flow guide cover, and the bolt is detachably connected with the sleeve; the sealing plug is annularly arranged and fixedly connected to the fixing disc, and a sealing groove used in cooperation with the sealing plug is formed in the sleeve; the sealing component is arranged on the sealing plug and is attached to the sleeve; according to the siphon roof drain base plate, the sealing performance of the connecting position of the fixing disc and the sleeve is improved, the situation that the bolt in the sleeve is damaged due to long-term rainwater erosion due to the poor sealing performance of the connecting position of the fixing disc and the sleeve is avoided, the bolt is protected, and the connecting firmness of the siphon roof drain base plate and the flow guide cover is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of rainwater hopper technology, specifically, it relates to a high-flow-rate siphon rainwater hopper. Background Technology

[0002] Siphon rainwater hoppers are mainly used for roof drainage. During operation, they undergo three flow states: gravity flow, two-phase flow, and full-pipe pressure flow. In the early stages of rainfall, when rainwater has just gathered and the water depth in front of the siphon rainwater hopper is small, the hopper cannot effectively prevent air from entering. At this time, the flow state is non-full-pipe flow, with air and water flowing in opposite directions; this stage is gravity flow. As more rainwater gathers, the water depth in front of the siphon rainwater hopper increases, and less air enters the siphon rainwater hopper. Intermittent full-pipe flow and full-pipe flow mixed with air bubbles—two-phase flow—are formed in the pipe. When the water depth in front of the siphon rainwater hopper reaches a certain height, no more air enters the siphon rainwater hopper, forming a full-pipe pressure flow state. At this time, the full-pipe flow in the pipe creates a certain negative pressure, and the water surface in front of the siphon rainwater hopper is affected by the difference between the inside and outside of the pipe, causing it to be discharged through the pipe, greatly enhancing the drainage capacity of rainwater.

[0003] The siphon rainwater hopper consists of a base and a guide shroud. However, existing siphon rainwater hoppers generally use bolts to fix the base and guide shroud. Even if the manufacturer applies an anti-corrosion coating to the outside of the bolts, the bolts will still be corroded over time with prolonged use of the siphon rainwater hopper. This can easily reduce the connection between the base and the guide shroud, thus affecting the siphon effect of the siphon rainwater hopper and reducing its normal drainage performance. Therefore, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-flow-rate siphon rainwater hopper that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A high-flow-rate siphon rainwater hopper includes a chassis and a flow guide shroud detachably connected to the chassis. A fixed plate is fixedly connected inside the chassis, and bolts are fixedly connected to the fixed plate. A sleeve is fixedly connected to the flow guide shroud, and the bolts are detachably connected to the sleeve. A sealing plug is annularly arranged and fixedly connected to the fixed plate, and a sealing groove is provided on the sleeve to cooperate with the sealing plug. A sealing component is disposed on the sealing plug and fits against the sleeve.

[0007] To increase the sealing at the connection between the sleeve and the fixed plate, preferably, the sealing component includes a sealing gasket, which is fixedly installed on the sealing plug and fits against the lower end of the sleeve.

[0008] To facilitate the disassembly or installation of the sleeve and bolt, preferably, the bolt is threaded to the inner wall of the sleeve.

[0009] Preferably, the flow guide cover has a flow guide port.

[0010] Furthermore, multiple flow guide ports are provided, and the multiple flow guide ports are circumferentially and equally distributed on the side wall of the flow guide shroud.

[0011] To extend the service life of the chassis and fairing, preferably, the surfaces of both the chassis and fairing are coated with an anti-rust coating.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0013] This invention improves the sealing at the connection between the fixed plate and the sleeve, preventing poor sealing that could damage the bolts in the sleeve due to long-term rainwater erosion. This protects the bolts and ensures the secure connection between the siphon rainwater hopper chassis and the guide cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is the utility model Figure 1 Enlarged view of section A.

[0017] In the diagram: 1. Chassis; 101. Shield; 2. Fixing plate; 201. Bolt; 202. Sealing plug; 203. Sealing gasket; 3. Sleeve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] Reference Figure 1 , Figure 2 , Figure 3A high-flow-rate siphon rainwater hopper includes a chassis 1 and a flow guide shroud 101 detachably connected to the chassis 1. A fixed plate 2 is fixedly connected inside the chassis 1, and bolts 201 are fixedly connected to the fixed plate 2. A sleeve 3 is fixedly connected to the flow guide shroud 101, and the bolts 201 are detachably connected to the sleeve 3. A sealing plug 202 is annularly arranged and fixedly connected to the fixed plate 2. A sealing groove for cooperating with the sealing plug 202 is provided on the sleeve 3. A sealing component is disposed on the sealing plug 202 and fits against the sleeve 3. The sealing component includes a sealing gasket 203, which is fixedly installed on the sealing plug 202 and fits against the lower end of the sleeve 3. A fixing cavity is provided inside the sleeve 3, and bolts 201 are threadedly connected to the inner wall of the sleeve 3. Multiple flow guide ports are provided on the flow guide shroud 101, and the multiple flow guide ports are circumferentially and equidistantly distributed on the side wall of the flow guide shroud 101.

[0020] When assembling the chassis 1 and the guide shroud 101 of the siphon rainwater hopper, the sleeve 3 is driven to rotate by rotating the guide shroud 101, so that the bolt 201 is rotated into the sleeve 3 until the guide shroud 101 is in contact with the chassis 1 and the bolt 201 is completely rotated into the sleeve 3, thereby completing the assembly of the chassis 1 and the guide shroud 101 of the siphon rainwater hopper.

[0021] When the guide shield 101 is in contact with the chassis 1, the sealing plug 202 inserted into the sealing groove is tightly fitted to the inner wall of the sealing groove, which increases the sealing performance at the connection between the fixed plate 2 and the sleeve 3. Furthermore, the sealing gasket 203 on the sealing plug 202 is tightly fitted to the lower end of the sleeve 3, which further increases the sealing performance at the connection between the fixed plate 2 and the sleeve 3. This prevents the bolt 201 in the sleeve 3 from being damaged by rainwater erosion due to poor sealing at the connection between the fixed plate 2 and the sleeve 3, thus protecting the bolt 201 and ensuring the firmness of the connection between the siphon rainwater bucket chassis 1 and the guide shield 101.

[0022] Both the chassis 1 and the fairing 101 are coated with an anti-rust coating;

[0023] The application of anti-rust coating extends the service life of chassis 1 and fairing 101.

[0024] In the actual production and manufacturing process, in order to further extend the service life of chassis 1 and fairing 101, stainless steel can be used to make chassis 1 and fairing 101.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A high-flow siphonic rainwater head, characterised in that, The utility model relates to a kind of wind deflector, including chassis (1) and wind deflector (101) connected on the chassis (1) is disassembled, Wherein, the fixed disc (2) is fixedly connected in the chassis (1), and the bolt (201) is fixedly connected on the fixed disc (2); Sleeve (3), fixedly connected on the wind deflector (101), Wherein, the bolt (201) and sleeve (3) are detachably connected; Sealing plug (202), annularly arranged, and fixedly connected on the fixed disc (2), Wherein, the sleeve (3) is provided with sealing groove used in cooperation with sealing plug (202); Sealing component is arranged on the sealing plug (202), and is attached with the sleeve (3).

2. A high-flow siphonic rainwater head according to claim 1, characterised in that, The sealing component includes sealing pad (203), and the sealing pad (203) is fixedly installed on sealing plug (202), and the sealing pad (203) is attached with the lower end of sleeve (3).

3. A large flow siphonic rainwater head according to claim 1, characterised in that, The bolt (201) is threadedly connected with the inner wall of sleeve (3).

4. A large flow siphonic rainwater head according to claim 1, characterised in that, The wind deflector (101) is provided with flow guide port.

5. A high-flow siphonic rainwater head according to claim 4, wherein The flow guide port is provided with multiple, and multiple flow guide ports are circumferentially equidistantly distributed on the side wall of wind deflector (101).

6. A large flow siphonic rainwater head according to claim 1 wherein, The surface of the chassis (1) and the wind deflector (101) is coated with rust-proof coating.

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