A first-flush diversion device suitable for sewage pipe networks

Abstract

This utility model discloses a first-flush diversion device suitable for sewage pipe networks, belonging to the technical field of rainwater treatment devices. It includes a housing, with a filter assembly installed at the top, a diversion pipe connected to the bottom of the housing, an electronic valve installed at the lower end of the diversion pipe, and a sewage well connected to the bottom of the diversion pipe. An interception assembly is fixed to the inner side wall of the housing, and a rainwater pipe is connected to the side of the interception assembly. The other end of the rainwater pipe is connected to a rainwater collection tank. This utility model uses a filter assembly and a screen frame to filter rainwater. After the first rain, the electronic valve is closed, causing the water level inside the housing to rise. The float moves upward, pushing a push rod upward, which in turn pushes a horizontal plate. A slider slides within a groove, limiting its movement and causing the screen frame to slide upward within the collection tank. Due to the limiting block, the top of the screen frame is flush with the top of the collection tank, facilitating the rolling and cleaning of impurities intercepted on the screen frame. This automatic cleaning improves filtration efficiency and ease of use.

Description

Technical Field

[0001] This utility model belongs to the technical field of rainwater treatment devices, specifically relating to a first-flush diversion device suitable for sewage pipe networks. Background Technology

[0002] As initial rainwater forms surface runoff and collects in storm drains, it carries a large amount of inorganic and organic impurities from the air and surface due to leaching and initial flushing, resulting in a high concentration of pollutants. If this initial rainwater is discharged directly into surface water bodies or recycled without any treatment, it will inevitably cause serious pollution to the receiving water bodies, disrupting their self-purification capacity and ecological balance. Furthermore, it will increase the load on rainwater recycling and treatment structures and the difficulty of treatment. Therefore, controlling initial rainwater is a major measure for stormwater utilization systems and urban runoff pollution control.

[0003] The existing rainwater diversion devices in sewage pipe networks have the following drawbacks: the screens are difficult to clean and cannot be cleaned automatically, causing inconvenience in use; at the same time, the rainwater tends to flow along the inner wall into the rainwater pipes and then into the rainwater collection tank, affecting the quality of rainwater collection.

[0004] In view of this, a first-flush diversion device suitable for sewage pipe networks is designed to solve the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a first-flush diversion device suitable for sewage pipe networks. The screen of this device is easy to clean and effectively prevents first-flush rainwater from entering the rainwater collection pipe.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a first-flush diversion device suitable for sewage pipe networks, comprising a housing, a filter assembly installed on the top of the housing, a diversion pipe connected to the bottom of the housing, an electronic valve installed at the lower end of the diversion pipe, a sewage well connected to the bottom of the diversion pipe, an interception assembly fixed to the inner side wall of the housing, a rainwater pipe connected to the side of the interception assembly, and a rainwater collection bucket connected to the other end of the rainwater pipe; The filter assembly includes a collection cylinder with grooves on both sides of its inner wall. A screen frame is movably connected inside the collection cylinder. Slider blocks that cooperate with the grooves are provided at both ends of the screen frame. A horizontal plate is welded to the middle of the bottom of the screen frame, and a floating component is connected to the lower end of the horizontal plate.

[0007] Preferably, the screen frame is designed as an inclined structure, and the top inclination angle of the collection cylinder is consistent with the inclination angle of the screen frame.

[0008] Preferably, the floating assembly includes a connecting rod, the connecting rod is welded to the inner bottom surface of the collecting cylinder, a push rod is movably connected to the middle of the connecting rod, the top of the push rod is fixedly connected to the cross plate, and a float is installed at the bottom of the push rod.

[0009] Preferably, a limiting block is fixed to the surface of the push rod located below the connecting rod.

[0010] Preferably, the interception assembly includes an interception seat, an interception seat is installed on the inner wall of the housing near the inlet of the rainwater pipe, a rotating seat is installed on the upper side of the interception seat, a sealing plate is installed in the middle of the rotating seat, the sealing plate and the rotating seat are rotatably connected by a rotating shaft, and a floating plate is installed on the lower side of the sealing plate.

[0011] Preferably, the side of the sealing plate is in close contact with the side of the interceptor seat under the action of gravity.

[0012] Preferably, the top of the interceptor seat is provided with a downwardly inclined liquid guiding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a filter assembly that uses a screen frame to filter rainwater. After the initial rain, the electronic valve is closed, the water level inside the housing rises, the float moves upward and pushes the push rod upward, the push rod pushes the horizontal plate upward, and the slider slides along the slide groove to limit the movement, so that the screen frame moves smoothly upward in the collection cylinder. Due to the limiting block, the top of the screen frame is flush with the top of the collection cylinder, which facilitates the rolling off and cleaning of impurities intercepted on the screen frame. This structure realizes automatic cleaning of the screen, improves filtration efficiency, and is convenient to use. 2. This utility model is equipped with an interception component. Under the action of gravity, the sealing plate is tightly attached to the interception seat. The initial rain flowing on the inner wall of the shell is guided downward by the liquid guiding groove and will not enter the rainwater pipe. When the water level in the shell rises, the float plate floats and causes the sealing plate to rotate and unfold around the rotating shaft. At this time, the rainwater passes through the interception seat and enters the rainwater collection bucket through the rainwater pipe, effectively avoiding the impact of impurities in the initial rain on the collected water quality and improving the quality of rainwater recycling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the filter assembly structure of this utility model; Figure 3 This is a schematic diagram of the interception component structure of this utility model; Figure 4 This is a schematic diagram of the liquid guiding groove structure of this utility model; In the diagram: 1. Shell; 2. Filter assembly; 21. Collection cylinder; 22. Screen frame; 23. Slide chute; 24. Slider; 25. Horizontal plate; 26. Floating assembly; 261. Connecting rod; 262. Limiting block; 263. Push rod; 264. Float; 3. Rainwater pipe; 4. Rainwater collection tank; 5. Sewage well; 6. Electronic valve; 7. Diversion pipe; 8. Interception assembly; 81. Interception seat; 82. Rotating shaft; 83. Rotating seat; 84. Sealing plate; 85. Float plate; 86. Liquid guide trough. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please see Figure 1-4 The present invention provides the following technical solution: a first rainwater diversion device suitable for sewage pipe network, including a shell 1, a filter assembly 2 installed on the top of the shell 1, a diversion pipe 7 connected to the bottom of the shell 1, an electronic valve 6 installed at the lower end of the diversion pipe 7, a sewage well 5 connected to the bottom of the diversion pipe 7, an interception assembly 8 fixedly connected to the inner side wall of the shell 1, a rainwater pipe 3 connected to the side of the interception assembly 8, and a rainwater collection bucket 4 connected to the other end of the rainwater pipe 3; The filter assembly 2 includes a collection cylinder 21. The inner wall of the collection cylinder 21 has grooves 23 on both sides. A screen frame 22 is movably connected inside the collection cylinder 21. The two ends of the screen frame 22 are provided with sliders 24 that cooperate with the grooves 23. A horizontal plate 25 is welded to the middle of the bottom of the screen frame 22. A floating assembly 26 is connected to the lower end of the horizontal plate 25.

[0017] Specifically, the screen frame 22 is designed as an inclined structure, and the top inclination angle of the collection cylinder 21 is consistent with the inclination angle of the screen frame 22.

[0018] By adopting the above technical solution, the impurities intercepted on the screen frame 22 can be easily rolled off and cleaned automatically, thereby improving filtration efficiency.

[0019] Specifically, the floating component 26 includes a connecting rod 261. The connecting rod 261 is welded to the inner bottom surface of the collection cylinder 21. A push rod 263 is movably connected to the middle of the connecting rod 261. The top of the push rod 263 is fixedly connected to the horizontal plate 25. A float ball 264 is installed at the bottom of the push rod 263.

[0020] By adopting the above technical solution, when the water volume inside the shell 1 rises, the float 264 floats and moves upward, pushing the push rod 263 upward. The push rod 263 pushes the horizontal plate 25, and the slider 24 slides in the sliding groove 23, causing the screen frame 22 to slide upward in the collection cylinder 21. Due to the limiting block 262, the top of the screen frame 22 is flush with the top of the collection cylinder 21, which facilitates the rolling and cleaning of impurities intercepted by the screen frame 22, automatically cleaning and improving filtration efficiency.

[0021] Specifically, a limit block 262 is fixedly attached to the surface of the push rod 263 located below the connecting rod 261.

[0022] By adopting the above technical solution, due to the limiting block 262, the top of the screen frame 22 is flush with the top of the collection cylinder 21, and the screen frame 22 will not detach from the collection cylinder 21.

[0023] In this embodiment, during rain, the electronic valve 6 opens, and rainwater, filtered through the screen frame 22, passes through the housing 1 and enters the diversion pipe 7, eventually flowing into the sewage well 5. After the initial rain stage, the electronic valve 6 is closed, and the rainwater is temporarily stored in the diversion pipe 7 and the housing 1. As the water level rises, the rainwater flows from the rainwater pipe 3 into the rainwater collection bucket 4, achieving rainwater collection and reuse. Simultaneously, the rising water level in the housing 1 pushes the float 264 to float, which in turn pushes the push rod 263 upward, thereby pushing the horizontal plate 25 upward. The slider 24 slides along the sliding groove 23, allowing the screen frame 22 to move smoothly upward in the collection cylinder 21. Under the limitation of the limiting block 262, the top of the screen frame 22 remains flush with the top of the collection cylinder 21, facilitating the rolling off and automatic cleaning of impurities intercepted on the screen frame 22. This process improves filtration efficiency, is easy to operate, and achieves the self-cleaning function of the screen.

[0024] Example 2: The difference between this embodiment and embodiment 1 is that the interception component 8 includes an interception seat 81. The interception seat 81 is installed on the inner wall of the housing 1 near the inlet of the rainwater pipe 3. A rotating seat 83 is installed on the upper side of the interception seat 81. A sealing plate 84 is installed in the middle of the rotating seat 83. The sealing plate 84 and the rotating seat 83 are rotatably connected by a rotating shaft 82. A floating plate 85 is installed on the lower side of the sealing plate 84.

[0025] By adopting the above technical solution, the sealing plate 84 is tightly attached to the intercepting seat 81 under the action of gravity. When the water level in the shell 1 rises, the floating plate 85 floats, causing the sealing plate 84 to rotate and unfold around the rotating shaft 82. Rainwater passes through the intercepting seat 81 and enters the rainwater pipe 3, and is collected into the rainwater collection bucket 4, avoiding the impact of many impurities in the first rain on the collection quality.

[0026] Specifically, the side of the sealing plate 84 is in close contact with the side of the interceptor seat 81 under the action of gravity.

[0027] By adopting the above technical solution, the initial rainwater is prevented from entering the interceptor seat 81 and then the rainwater pipe 3.

[0028] Specifically, the top of the interceptor seat 81 is provided with a downwardly inclined liquid guide groove 86.

[0029] By adopting the above technical solution, the initial rain flowing on the inner wall of the shell 1 is discharged downward with the liquid guiding groove 86 and will not enter the rainwater pipe 3.

[0030] In this embodiment, the sealing plate 84 adheres tightly to the intercepting seat 81 under the action of gravity. The initial rain flowing on the inner wall of the shell 1 is discharged downward with the liquid guiding groove 86 and will not enter the rainwater pipe 3. When the water level in the shell 1 rises, the float plate 85 floats, causing the sealing plate 84 to rotate and unfold around the rotating shaft 82. The rainwater passes through the intercepting seat 81 and enters the rainwater pipe 3, and is collected in the rainwater collection bucket 4, avoiding the impact of impurities in the initial rain on the collection quality.

[0031] The working principle and usage process of this utility model are as follows: At the beginning of the rain, the electronic valve 6 is opened, and the rainwater is filtered through the screen frame 22 and then passes through the shell 1 and is discharged into the sewage well 5 through the diversion pipe 7; the sealing plate 84 is tightly attached to the interception seat 81 under the action of gravity, and the initial rainwater flowing on the inner wall of the shell 1 is guided downward by the liquid guide groove 86 and will not enter the rainwater pipe 3, thereby avoiding pollution of the rainwater collection system.

[0032] When the initial rainfall phase ends, the electronic valve 6 is closed, and the rainwater is temporarily stored in the diversion pipe 7 and the housing 1. As the water level rises, the float 85 pushes the sealing plate 84 to rotate around the rotating shaft 82 under the action of buoyancy, and the rainwater enters the rainwater pipe 3 through the interception seat 81, and finally flows into the rainwater collection bucket 4, realizing the collection and reuse of clean rainwater in the later stage.

[0033] Simultaneously, the rising water level inside the casing 1 causes the float 264 to rise, pushing the push rod 263 upward, which in turn pushes the horizontal plate 25 upward. The slider 24 slides along the limiting groove 23, allowing the screen frame 22 to rise smoothly in the collection cylinder 21. Due to the limiting block 262, the top of the screen frame 22 remains flush with the top of the collection cylinder 21, facilitating the rolling off of impurities intercepted on the screen frame 22 and achieving automatic cleaning. This process significantly improves filtration efficiency and is convenient to use.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A first-flush diversion device suitable for sewage pipe networks, comprising a housing (1), characterized in that: A filter assembly (2) is installed on the top of the housing (1), a diversion pipe (7) is connected to the bottom of the housing (1), an electronic valve (6) is installed at the lower end of the diversion pipe (7), a sewage well (5) is connected to the bottom of the diversion pipe (7), an interception assembly (8) is fixed to the inner side wall of the housing (1), a rainwater pipe (3) is connected to the side of the interception assembly (8), and a rainwater collection bucket (4) is connected to the other end of the rainwater pipe (3). The filter assembly (2) includes a collection cylinder (21), with grooves (23) on both sides of the inner wall of the collection cylinder (21). A screen frame (22) is movably connected inside the collection cylinder (21). Slider blocks (24) that cooperate with the grooves (23) are provided at both ends of the screen frame (22). A horizontal plate (25) is welded to the middle of the bottom of the screen frame (22), and a floating assembly (26) is connected to the lower end of the horizontal plate (25).

2. The first-flush diversion device for sewage pipe networks according to claim 1, characterized in that: The screen frame (22) is designed with an inclined structure, and the top inclination angle of the collection cylinder (21) is consistent with the inclination angle of the screen frame (22).

3. The first-flush runoff diversion device suitable for sewage pipe networks according to claim 1, characterized in that: The floating assembly (26) includes a connecting rod (261), the connecting rod (261) is welded to the inner bottom surface of the collecting cylinder (21), a push rod (263) is movably connected in the middle of the connecting rod (261), the top of the push rod (263) is fixedly connected to the cross plate (25), and a float (264) is installed at the bottom of the push rod (263).

4. A first-flush diversion device suitable for sewage pipe networks according to claim 3, characterized in that: The push rod (263) is fixed to the surface below the connecting rod (261) by a limiting block (262).

5. A first-flush diversion device suitable for sewage pipe networks according to claim 1, characterized in that: The interception assembly (8) includes an interception seat (81). The interception seat (81) is installed on the inner wall of the housing (1) near the inlet of the rainwater pipe (3). A rotating seat (83) is installed on the upper side of the interception seat (81). A sealing plate (84) is installed in the middle of the rotating seat (83). The sealing plate (84) and the rotating seat (83) are rotatably connected by a rotating shaft (82). A floating plate (85) is installed on the lower side of the sealing plate (84).

6. A first-flush diversion device suitable for sewage pipe networks according to claim 5, characterized in that: The side of the sealing plate (84) is in close contact with the side of the interceptor seat (81) under the action of gravity.

7. A first-flush diversion device suitable for sewage pipe networks according to claim 5, characterized in that: The top of the interceptor seat (81) is provided with a downwardly inclined liquid guide groove (86).

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