An overflow and drainage system

Abstract

The application relates to an overflow device, which comprises an outer sleeve, an inner wall of which is hollow; a water seal box, which is fixed on the inner wall of the outer sleeve through a fixing part, and has an open upper end and a closed lower end; the lower end of the water seal box is suspended and has a first gap A with the inner wall of the outer sleeve; a cover plate, which covers the upper end of the outer sleeve and has a water outlet pipe mounting hole; a second gap B between the lower surface of the cover plate and the upper end of the water seal box; a water outlet pipe, which is fixed in the water pipe mounting hole and has two open ends, with the lower end extending into the water seal box; a third gap C between the outer wall of the water outlet pipe and the inner wall of the water seal box, and a fourth gap D between the lower end of the water outlet pipe and the bottom of the water seal box; a flow channel is formed in the overflow device, and the flow area of the flow channel gradually increases along the water outlet direction. The overflow device is connected with a horizontal cross pipe, the water outlet thereof is lower than the drain hole of the house of the user in the upper layer, and when the horizontal cross pipe is blocked, sewage backflow is preferentially discharged through the overflow device.

Description

Technical Field

[0001] This application belongs to the field of building drainage technology, and in particular relates to an overflow device and a drainage system. Background Technology

[0002] In modern high-rise mixed-use buildings, there is usually an open floor or transfer floor where vertical drainage pipes connect to horizontal drainage pipes. Due to the slowdown in flow rate, horizontal drainage pipes often become clogged. When horizontal pipes are clogged, sewage will backflow into the homes of residents on the upper floor or even two floors, causing serious indoor pollution. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an overflow device and a drainage system to solve the problem that sewage is prone to backflow when the building drainage system pipes are blocked in the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] An overflow device, comprising:

[0006] An outer sleeve, which is open at both ends and hollow inside;

[0007] A water seal box is fixed to the inner wall of the outer sleeve by a fastener. The upper end of the water seal box is open and the lower end is closed. The lower end of the water seal box is suspended and has a first gap A with the inner wall of the outer sleeve.

[0008] A cover plate covers the upper end of the outer sleeve and has a water outlet pipe mounting hole; a second gap B exists between the lower surface of the cover plate and the upper end of the water seal tank.

[0009] A water outlet pipe is fixed inside the water pipe mounting hole. Both ends of the water outlet pipe are open, and the lower end extends into the water seal box. There is a third gap C between the outer wall of the water outlet pipe and the inner wall of the water seal box, and there is a fourth gap D between the lower end of the water outlet pipe and the bottom of the water seal box.

[0010] A flow channel is formed inside the overflow device, and the flow area of ​​the flow channel gradually increases along the water outlet direction.

[0011] Preferably, in the overflow device of the present invention, the water flow path of the flow channel is as follows: sequentially passing through the lower end of the outer sleeve, the first gap A, the second gap B, the third gap C, the fourth gap D, and the outlet pipe;

[0012] The flow area of ​​the lower end of the outer sleeve, the first gap A, the second gap B, the third gap C, the fourth gap D, and the outlet pipe increases sequentially.

[0013] Preferably, in the overflow device of the present invention, the lower end of the outer sleeve is provided with a connector for connecting to a pipe.

[0014] Preferably, in the overflow device of the present invention, the connecting member is a flange or a hoop.

[0015] Preferably, in the overflow device of the present invention, the end of the connector is provided with a sealing ring.

[0016] Preferably, in the overflow device of the present invention, the upper edge of the outer sleeve is annular, the cover plate is annular of a corresponding size, and the cover plate and the upper edge of the outer sleeve can be flange-connected.

[0017] Preferably, in the overflow device of the present invention, the fixing member is a metal sheet.

[0018] Preferably, in the overflow device of the present invention, the number of fixing members is 3 pieces, which are arranged at 120-degree intervals.

[0019] Preferably, in the overflow device of the present invention, the lower surface of the cover plate has a flange.

[0020] A drainage system includes the overflow device described above, and further includes a vertically arranged drain pipe and a transverse drain pipe connected to the side of the vertically arranged drain pipe.

[0021] The overflow device is installed on the upper side of the horizontal drain pipe via a connector.

[0022] The beneficial effects of this invention are:

[0023] The overflow valve is connected to the horizontal pipe, and its outlet is lower than the drain hole of the user's home on the floor above. When the horizontal pipe is blocked, sewage backflow will be discharged first through the overflow valve and will not flow back into the user's home.

[0024] The design of the flow channel also serves to relieve pressure and reduce the risk of pipe rupture. Attached Figure Description

[0025] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is an exploded view of the overflow device structure according to an embodiment of this application;

[0027] Figure 2 This is an assembly diagram of the overflow device structure according to an embodiment of this application;

[0028] Figure 3 This is a cross-sectional view of the overflow device structure according to an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the drainage system structure according to an embodiment of this application.

[0030] The attached figures are labeled as follows:

[0031] 1. Outerwear

[0032] 2 Water Seal Box

[0033] 3. Cover plate

[0034] 4. Water outlet pipe

[0035] 5 Connectors

[0036] 21 Fasteners

[0037] 32 flange

[0038] A First Gap

[0039] B Second Gap

[0040] C Third gap

[0041] D. Fourth gap. Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0043] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0046] This embodiment provides an overflow device, such as... Figure 1-3 As shown, it includes:

[0047] Outer sleeve 1, the outer sleeve 1 is open at both ends and hollow inside;

[0048] Water seal box 2 is fixed to the inner wall of outer sleeve 1 by fastener 21. The upper end of water seal box 2 is open and the lower end is closed. The lower end of water seal box 2 is suspended and has a first gap A with the inner wall of outer sleeve 1.

[0049] Cover plate 3 covers the upper end of the outer sleeve 1, and the cover plate 3 has a water outlet pipe mounting hole; there is a second gap B between the lower surface of the cover plate 3 and the upper end of the water seal box 2;

[0050] The water outlet pipe 4 is fixed in the water pipe mounting hole. Both ends of the water outlet pipe 4 are open, and the lower end extends into the water seal box 2. There is a third gap C between the outer wall of the water outlet pipe 4 and the inner wall of the water seal box 2, and there is a fourth gap D between the lower end of the water outlet pipe 4 and the bottom of the water seal box 2.

[0051] A flow channel is formed inside the overflow device, and the flow area of ​​the flow channel gradually increases along the water outlet direction.

[0052] Currently, high-rise buildings do not use overflow devices in the horizontal drainage pipes of the elevated or transfer floors. When pipe blockages occur and sewage backflow occurs, the blockage point is manually located and the pipe is dredged. Furthermore, when the pipe is blocked, the water pressure in the drainage pipe is very high, which easily leads to the risk of pipe rupture. The overflow device provided in this embodiment releases pressure in the pipe through a design with progressively increasing flow area, preventing sewage from flowing back into the user's home. At the same time, the overflow device's drainage also acts as a pressure relief mechanism due to the flow channel design, reducing the risk of pipe rupture.

[0053] The overflow device in this embodiment can produce the following functions:

[0054] 1. As the flow area gradually increases, sewage can be discharged smoothly, and no pressure will be formed in the pipe during drainage, causing sewage to flow back to the user on the upper floor;

[0055] 2. The water seal tank has a large enough capacity to prevent water from evaporating and to keep the tank full of water for a long time, thus ensuring the water seal effect is continuous.

[0056] Preferably, the overflow device in this embodiment, such as Figure 3As shown, the water flow path of the channel is as follows: sequentially passing through the lower end of the outer sleeve 1, the first gap A, the second gap B, the third gap C, the fourth gap D, and the outlet pipe 4;

[0057] The flow area of ​​the lower end of the outer sleeve 1, the first gap A, the second gap B, the third gap C, the fourth gap D, and the water outlet pipe 4 increases sequentially.

[0058] Preferably, in this embodiment, the overflow device has a connector 5 at the lower end of the outer sleeve 1 for connecting to a pipe, so as to connect to the drainage system. Preferably, the connector 5 is a flange or a hoop.

[0059] Preferably, in this embodiment, the overflow device has a sealing ring at the end of the connector 5 to enhance sealing.

[0060] Preferably, in this embodiment of the overflow device, the upper edge of the outer sleeve 1 is annular, and the cover plate 3 is annular of a corresponding size. The cover plate 3 and the upper edge of the outer sleeve 1 can be flange-connected. This structure facilitates the connection of the cover plate 3. Preferably, as shown... Figure 3 As shown, a flange gasket is provided between the cover plate 3 and the outer sleeve 1.

[0061] Preferably, in this embodiment, the overflow device has a metal fastener 21. Preferably, there are three fasteners 21 spaced at 120-degree intervals to stably secure the water seal tank 2.

[0062] Preferably, the overflow device in this embodiment, such as Figure 3 As shown, the lower surface of the cover plate 3 has a flange 32. The flange 32 serves a positioning function and facilitates assembly.

[0063] This embodiment provides a drainage system, such as Figure 4 As shown, the device includes the overflow device described above, as well as a vertically arranged drain pipe and a horizontal drain pipe connected to the side of the vertically arranged drain pipe.

[0064] The overflow device is installed on the upper side of the horizontal drain pipe via a connector.

[0065] With this drainage system, the highest point of the overflow outlet is lower than the drain hole in the home of the user on the floor above the conversion layer, so that sewage is preferentially discharged from the overflow outlet.

[0066] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A drainage system, characterized in that, It includes an overflow device, a vertically arranged drain pipe, and a transverse drain pipe connected to the side of the vertically arranged drain pipe. The overflow device is installed on the upper side of the horizontal drain pipe via a connector; The overflow device includes: Outer sleeve (1), the outer sleeve (1) is open at both ends and hollow inside; Water seal box (2), the water seal box (2) is fixed to the inner wall of the outer sleeve (1) by a fastener (21), the upper end of the water seal box (2) is open and the lower end is closed; the lower end of the water seal box (2) is suspended and there is a first gap A between it and the inner wall of the outer sleeve (1); Cover plate (3), the cover plate (3) covers the upper end of the outer sleeve (1), the cover plate (3) has a water outlet pipe mounting hole; there is a second gap B between the lower surface of the cover plate (3) and the upper end of the water seal box (2); The water outlet pipe (4) is fixed in the water pipe mounting hole. Both ends of the water outlet pipe (4) are open, and the lower end extends into the water seal box (2). There is a third gap C between the outer wall of the water outlet pipe (4) and the inner wall of the water seal box (2), and there is a fourth gap D between the lower end of the water outlet pipe (4) and the bottom of the water seal box (2). A flow channel is formed inside the overflow device, and the flow area of ​​the flow channel gradually increases along the water outlet direction; The water flow path of the channel is as follows: it passes through the lower end of the outer sleeve (1), the first gap A, the second gap B, the third gap C, the fourth gap D, and the outlet pipe (4) in sequence; the flow area of ​​the lower end of the outer sleeve (1), the first gap A, the second gap B, the third gap C, the fourth gap D, and the outlet pipe (4) increases in sequence. The lower end of the outer sleeve (1) is provided with a connector (5) for connecting to the pipe. The connector (5) is a flange or a hoop; the end of the connector (5) is provided with a sealing ring.

2. The drainage system according to claim 1, characterized in that, The upper edge of the outer sleeve (1) is annular, and the cover plate (3) is annular of the corresponding size. The cover plate (3) and the upper edge of the outer sleeve (1) can be flange-connected.

3. The drainage system according to claim 1, characterized in that, The fastener (21) is a metal sheet.

4. The drainage system according to claim 1, characterized in that, The number of fasteners (21) is 3 pieces, which are set at 120-degree intervals.

5. The drainage system according to any one of claims 1-4, characterized in that, The lower surface of the cover plate (3) has a flange (32).

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