Anti-overflow joint for breather pipe of sewage lifting equipment

Abstract

The utility model belongs to the technical field of building drainage systems, and particularly relates to an anti-overflow connector for a breather pipe of sewage lifting equipment. The ventilation vertical pipe is communicated with the drainage vertical pipe, and the ventilation vertical pipe and the drainage vertical pipe are arranged in parallel; the ventilation branch pipe is arranged on one side, far away from the drainage vertical pipe, of the ventilation vertical pipe, and the ventilation branch pipe is communicated with the ventilation vertical pipe; and the water blocking plate is rotationally installed at a pipe opening, communicated with the ventilation vertical pipe, of the ventilation branch pipe, and when water flow flows in the ventilation vertical pipe, the water blocking plate shields the pipe opening of the ventilation branch pipe. The device has the advantages that the ventilation branch pipe is arranged at the end, away from the drainage stand pipe, of the ventilation stand pipe, and the water baffle is arranged, so that water is effectively prevented from leaking to the ventilation branch pipe.

Description

Technical Field

[0001] This utility model belongs to the technical field of building drainage systems, and specifically relates to an anti-overflow connector for the vent pipe of a sewage lifting equipment. Background Technology

[0002] In high-rise buildings, the vent pipe of the integrated sewage lifting equipment for the toilets on the first floor is usually connected to the dedicated vent pipe of the toilet drainage riser on the first floor. During the drainage process of the toilets on each floor of the high-rise building, the water flow in the sewage riser will cause changes in the air pressure in the riser. The drainage of each floor above the first floor will have water flow to varying degrees entering the dedicated synchronous riser during the drainage process.

[0003] The authorized patent with announcement number CN205839888U mentions an anti-backflow H-pipe for building drainage, a drainage riser, a venting inclined pipe, and a venting riser, wherein: a first baffle is provided vertically downward at the connection between the upper wall of the venting inclined pipe and the drainage riser; a second baffle is provided at the connection between the lower wall of the venting inclined pipe and the venting riser to the axis of the venting riser; the pipe wall of the venting riser protrudes outward on the side of the connection between the venting riser and the venting inclined pipe to form a venting bend to ensure smooth ventilation.

[0004] The prior art represented by the aforementioned patents has at least the following problems:

[0005] H-shaped pipes cannot completely prevent water leakage even with simple baffles. Water entering the venting branch pipes affects the stability and service life of the sewage lifting equipment. Utility Model Content

[0006] This utility model provides an overflow prevention connector for the vent pipe of a sewage lifting equipment to solve the technical problem.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sewage lifting equipment vent pipe anti-overflow connector, comprising:

[0008] Drainage riser;

[0009] A venting riser is connected to the drainage riser, and the venting riser is arranged parallel to the drainage riser;

[0010] A vent branch pipe is installed on the side of the vent riser away from the drainage riser, and the vent branch pipe is connected to the vent riser.

[0011] A water-blocking plate is rotatably installed at the opening of the vent branch pipe that connects to the vent riser pipe. When water flows in the vent riser pipe, the water-blocking plate blocks the opening of the vent branch pipe.

[0012] Furthermore, it also includes:

[0013] A ventilation bend is provided on the pipe wall of the ventilation riser near one end of the drainage riser, and the ventilation bend is located above the connection point between the ventilation riser and the drainage riser.

[0014] Furthermore, it also includes:

[0015] The elastic element has one end fixed to the inner wall of the pipe opening away from the water-blocking plate at the connection between the vent branch pipe and the vent riser pipe, and the other end connected to the water-blocking plate.

[0016] Furthermore, it also includes:

[0017] An air intake pump is located at the bottom of the ventilation branch pipe, away from the end that is connected to the ventilation riser.

[0018] Furthermore, the distance between the farthest end of the arc-shaped inner wall of the ventilation bend and the central axis of the ventilation riser is not less than 80mm.

[0019] As can be seen from the above technical solution, the beneficial effects of the overflow prevention joint for the vent pipe of the sewage lifting equipment provided by this utility model are as follows:

[0020] By placing the vent branch pipe at the end of the vent riser away from the drainage riser and installing a baffle plate, water leakage into the vent branch pipe can be effectively prevented. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the overall structure of the water-blocking plate when it is opened, provided in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the water-blocking plate when it is closed, as provided in an embodiment of the present invention.

[0024] In the diagram: 1-Drainage riser; 2-Ventilation riser; 3-Ventilation branch pipe; 4-Water barrier; 5-Elastic element; 6-Ventilation bend. Detailed Implementation

[0025] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] 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 can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example:

[0030] To solve the above technical problems, such as Figures 1 to 2 As shown, this embodiment provides an overflow prevention connector for the vent pipe of a sewage lifting equipment, including:

[0031] Drainage riser 1;

[0032] Ventilation riser 2 is connected to drainage riser 1, and the ventilation riser 2 is arranged parallel to the drainage riser 1;

[0033] Ventilation branch pipe 3 is located on the side of the ventilation riser 2 away from the drainage riser 1, and the ventilation branch pipe 3 is connected to the ventilation riser 2.

[0034] The water-blocking plate 4 is rotatably installed at the opening of the venting branch pipe 3 and the venting riser pipe 2. When water flows in the venting riser pipe 2, the water-blocking plate blocks the opening of the venting branch pipe 3.

[0035] The drainage riser 1 is connected to the vent riser 2, and the two risers are parallel. The vent riser 2 is connected to the vent branch pipe 3. The vent riser 2 has a downward bend at its connection with the drainage riser 1. The vent branch pipe 3 is connected to the vent riser 2 on the side away from the drainage riser 1. The water inlet of the vent riser 2 is in the same direction as that of the drainage riser 1. The air inlet of the vent branch pipe 3 is located at the bottom. The connection between the vent branch pipe 3 and the vent riser 2 has an upward bend. The water baffle plate has a similar curvature to the pipe wall; the water baffle plate 4 can rotate from 0 to 90°. When there is no high-speed water flow in the vent riser 2, the water baffle plate 4 opens to be parallel to the horizontal line of the pipeline, timely replenishing the air in the vent riser 2 and releasing the excess pressure in the vent riser 2. When there is high-speed water flow in the vent riser 2, the water baffle plate 4 closes to be perpendicular to the horizontal line of the pipeline, allowing the water to flow in the vent riser 2 and preventing it from entering the vent branch pipe 3, thus protecting the venting system from being blocked by water.

[0036] Furthermore, such as Figures 1 to 2 As shown, it also includes:

[0037] A ventilation bend 6 is provided on the pipe wall of the ventilation riser 2 near one end of the drainage riser 1. The ventilation bend is located above the connection point between the ventilation riser 2 and the drainage riser 1.

[0038] The ventilation bend 6 is located opposite the opening of the ventilation branch pipe 3. It can work with the water-blocking plate 4 to form a buffer space in the ventilation riser 2 to prevent water from splashing into the ventilation branch pipe 3.

[0039] Furthermore, such as Figures 1 to 2 As shown, it also includes:

[0040] The elastic element 5 has one end fixed to the inner wall of the pipe opening away from the water-blocking plate 4 at the connection between the ventilation branch pipe 3 and the ventilation riser pipe 2, and the other end connected to the water-blocking plate 4.

[0041] Among them, the elastic element 5 is a spring. In its natural state, the spring has a certain elastic force, so that when there is no water flow impact, the water-blocking plate 4 and the opening of the ventilating branch pipe 3 are kept open due to the initial tension of the elastic element 5. When the water-blocking plate 4 is impacted by water flow, the water-blocking plate 4 rotates to block the opening of the ventilating branch pipe 3, preventing water from flowing into the ventilating branch pipe 3. After the water flow impact, the elastic element 5 returns to its initial state, supporting the water-blocking plate 4 again to a certain opening angle, restoring ventilation.

[0042] Furthermore, such as Figures 1 to 2 As shown, it also includes:

[0043] An air intake pump is located at the bottom of the ventilation branch pipe 3, away from the end that is connected to the ventilation riser pipe 2.

[0044] The air intake pump is located at the bottom of the ventilation branch pipe 3. The air intake pump can actively replenish air into the ventilation branch pipe 3, maintain the pressure stability in the ventilation riser pipe 2, avoid the formation of a vacuum that would deform the pipe, and also prevent odor backflow.

[0045] Furthermore, such as Figures 1 to 2 As shown, the distance between the farthest end of the arc-shaped inner wall of the protruding bend on the ventilation bend 6 and the central axis of the ventilation riser 2 is not less than 80mm.

[0046] This distance ensures that the effective flow cross-sectional area within the ventilation riser 2 is not less than the cross-sectional area of ​​the ventilation riser 2 itself, thus maintaining sufficient ventilation.

[0047] In summary, the drainage riser 1 connects to the municipal pipe network, the vent riser 2 is used to balance the pressure inside the pipe and discharge odors, the vent branch pipe 3 is a venting pipe for dedicated equipment, and an air pump is used to supplement air to the entire pipeline to avoid vacuum. The water baffle 4 is used to block the opening of the vent branch pipe 3 when there is water flowing in the vent riser 2, so as to prevent water from flowing into the vent branch pipe 3.

[0048] 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 described 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 sewage-lifting apparatus air pipe anti-overflow joint, characterized in that, The utility model relates to a kind of air-venting system of vertical pipe, including: Drainage vertical pipe (1); Ventilation vertical pipe (2), which is communicated with the drainage vertical pipe (1), and the ventilation vertical pipe (2) is arranged in parallel with the drainage vertical pipe (1); Ventilation branch pipe (3) is arranged on the side of the ventilation vertical pipe (2) away from the drainage vertical pipe (1), and the ventilation branch pipe (3) is communicated with the ventilation vertical pipe (2); Water-blocking plate (4) is rotatably installed at the pipe opening where the ventilation branch pipe (3) is communicated with the ventilation vertical pipe (2), and the water-blocking plate blocks the pipe opening of the ventilation branch pipe (3) when water flows in the ventilation vertical pipe (2).

2. A sewage-lifting apparatus air pipe anti-overflow joint according to claim 1, characterized in that, Further comprising: Ventilation elbow (6) is arranged on the pipe wall of the ventilation vertical pipe (2) close to one end of the drainage vertical pipe (1), and the ventilation elbow is located above the communication position of the ventilation vertical pipe (2) and the drainage vertical pipe (1).

3. A sewage-lifting apparatus air pipe anti-overflow joint according to claim 2, characterized in that, Further comprising: Elastic member (5) is fixed on the inner wall of the pipe opening away from the water-blocking plate (4) at the communication position of the ventilation branch pipe (3) and the ventilation vertical pipe (2) at one end, and connected with the water-blocking plate (4) at the other end.

4. A sewage-lifting apparatus air pipe anti-overflow joint according to claim 3, characterized in that, Further comprising: Air inlet pump is arranged at the bottom of the ventilation branch pipe (3) away from the end communicated with the ventilation vertical pipe (2).

5. A sewage-lifting apparatus air pipe anti-overflow joint according to claim 4, characterized in that, Further comprising: The distance between the arc-shaped inner wall of the ventilation elbow (6) farthest end and the central axis of the ventilation vertical pipe (2) is not less than 80mm.

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