Automatic initial rainwater discarding device for water supply and drainage system

Abstract

The utility model relates to rainwater treatment technical field, and specifically is a kind of automatic flow rejection device of initial rainwater of water supply and drainage system, including tank and the water inlet fixedly connected with tank one side, the fixed mounting of fixed part in tank, and the water inlet is fixedly connected with opening and closing component in one end inside tank, and fixed part inside fixedly connected with float ball component;The utility model passes through the water inlet and flows into tank inside, first contact with opening and closing component and can according to the flow control of rainwater its opening amplitude, and then through transmission rod and rotating rod cooperation drive adjusting part down shift and make filter plate be blocked filter water hole open, simultaneously can pass through the opening amplitude adjustment float ball component's displacement of opening and closing component, make the rainwater flow of water inlet always greater than the drainage capacity of flow rejection port, and then make initial rainwater flow into flow rejection cavity and discharge through flow rejection port.

Description

Technical Field

[0001] This utility model relates to the field of rainwater treatment technology, specifically to an automatic initial rainwater diversion device for a water supply and drainage system. Background Technology

[0002] The initial rainwater automatic diversion device is a key pretreatment device for rainwater harvesting systems. Its core function is to automatically identify and discharge heavily polluted rainwater at the beginning of rainfall (usually the first 2-5 mm or runoff in a specific period), while guiding the later, cleaner rainwater into the collection or treatment system.

[0003] The main components of existing float-type diversion devices, such as Figure 1 As shown, it mainly includes a tank body and an inlet, outlet and diversion port opened on the tank body. The tank body is equipped with a filter screen and a filter plate. The diversion chamber at the bottom of the tank body is separated by the filter plate, and the float assembly inside the tank body is used to control the diversion.

[0004] The existing float-type diversion device consists of an upper float and a lower float. The lower float is located below the filter plate, which has a drain hole in the middle. When rainwater flows into the tank from the inlet, it flows out through the drain hole of the filter plate to the diversion outlet. As the amount of rainwater increases, when the amount of rainwater at the inlet exceeds the amount of rainwater at the diversion outlet, the upper float rises and causes the lower float to block the drain hole of the filter plate, thus collecting subsequent rainwater. However, when faced with prolonged, small-amplitude rainfall, the existing float-type diversion device cannot raise the upper float because the amount of rainwater at the inlet is difficult to exceed the amount of water flowing out of the diversion outlet. This makes it difficult to collect subsequent rainwater. Furthermore, when the amount of rainwater gradually decreases in the later stages of rainfall, the upper float falls, causing the filter hole of the filter plate to reopen, resulting in rainwater flowing to the diversion outlet, which in turn leads to poor collection of subsequent rainwater.

[0005] Therefore, this utility model provides a float-type diversion device that can divert rainwater from small-scale rainfall and collect subsequent rainwater. Utility Model Content

[0006] To address the problem in existing technologies that make it difficult to divert rainwater from small-scale rainfall and collect subsequent rainwater, an automatic rainwater diversion device for initial rainwater in water supply and drainage systems has been designed.

[0007] The technical solution adopted by this utility model to solve its technical problem is: an automatic initial rainwater diversion device for a water supply and drainage system, including a tank and an inlet fixedly connected to one side of the tank, a fixing component fixedly installed inside the tank, an opening and closing component fixedly connected to one end of the inlet located inside the tank, and a float assembly fixedly connected inside the fixing component.

[0008] When the initial rainwater flows into the tank through the inlet, the float assembly first contacts the opening and closing component and can control the opening range according to the rainwater flow rate. This causes the float assembly to move downward, allowing the rainwater to flow through the filter plate into the diversion outlet for initial rainwater diversion. After a certain period of time, the water inlet volume exceeds the drainage volume of the diversion outlet, causing the float assembly to move upward and block the filter plate, allowing subsequent rainwater to flow out through the outlet.

[0009] Furthermore, the float assembly includes a transmission rod rotatably connected to the outside of the opening and closing assembly, a rotating rod rotatably connected to the other end of the transmission rod, an adjusting member rotatably connected to the end of the rotating rod away from the transmission rod, a limiting member fixedly installed on the outside of the adjusting member, and an upper float and a lower float slidably installed on the outside of the adjusting member.

[0010] Furthermore, the transmission rod is rotatably installed inside the fixed component, the rotating rod is rotatably installed inside the fixed seat and is fixedly connected to the upper end of the fixed component through the fixed seat, the adjusting component is slidably connected inside the fixed component, the limiting component is located inside the upper float ball, and the upper float ball and the lower float ball are fixedly connected.

[0011] Furthermore, the opening and closing assembly includes a fixed plate that is fixedly installed at one end of the water inlet located inside the tank, and the fixed plate is rotatably connected to an adjusting plate via a rotating shaft.

[0012] Furthermore, the end of the transmission rod away from the rotating rod is rotatably connected to the outside of the adjusting plate.

[0013] Furthermore, an outlet is fixedly connected to the outer side of the tank away from the inlet, a diversion outlet is provided at the bottom of the outer side of the tank, a filter plate is fixedly installed inside the tank, a diversion chamber is separated by the filter plate inside the tank, a filter screen is fixedly connected inside the tank, and the upper and lower ends of the filter screen are fixedly connected to the fixing component and the filter plate, respectively.

[0014] Furthermore, the lower float ball is located at the bottom of the filter plate.

[0015] The beneficial effects of this utility model are as follows: When water flows into the tank through the inlet, it first contacts the opening and closing component, and the opening range can be controlled according to the flow rate of the rainwater. Then, through the cooperation of the transmission rod and the rotating rod, the adjusting component moves down to open the filter holes of the filter plate that are blocked. At the same time, the displacement of the float component can be adjusted by the opening range of the opening and closing component, so that the rainwater flow rate at the inlet is always greater than the drainage volume at the diversion outlet. Thus, the initial rainwater flows into the diversion chamber and is discharged through the diversion outlet. After a certain period of time, since the inlet flow rate is always greater than the drainage volume at the diversion outlet, the rainwater in the diversion chamber reaches a certain threshold, which causes the upper float to rise and drive the lower float to close the filter plate. This allows the subsequent rainwater to flow into the outlet through the filter screen and be discharged and collected, further improving the collection effect of the later rainwater. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model;

[0019] Figure 3 This is a schematic diagram of the opening and closing component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the float assembly structure of this utility model.

[0021] In the diagram: 1. Tank body; 2. Inlet; 3. Outlet; 4. Drainage outlet; 5. Fixing component; 6. Filter screen; 7. Opening and closing assembly; 71. Fixing plate; 72. Adjusting plate; 8. Float assembly; 81. Transmission rod; 82. Rotating rod; 83. Adjusting component; 84. Limiting component; 85. Upper float; 86. Lower float; 9. Filter plate; 10. Drainage chamber. Detailed Implementation

[0022] To make the technical means, technical features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Example: Figure 1 - Figure 4 As shown, the present invention provides an automatic initial rainwater diversion device for a water supply and drainage system, comprising a tank 1 and an inlet 2 fixedly connected to one side of the tank 1, a fixing component 5 fixedly installed inside the tank 1, an opening and closing component 7 fixedly connected to one end of the inlet 2 located inside the tank 1, and a float component 8 fixedly connected inside the fixing component 5.

[0024] Specifically, when the initial rainwater flows into the tank through the inlet 2, it first contacts the opening and closing component 7, and the opening range can be controlled according to the rainwater flow rate. Then, through the cooperation of the transmission rod 81 and the rotating rod 82, the adjusting component 83 is moved down to open the blocked filter holes of the filter plate 9. At the same time, the displacement of the float component 8 can be adjusted by the opening range of the opening and closing component 7, so that the rainwater flow rate at the inlet is always greater than the drainage volume at the diversion port 4. Thus, the initial rainwater flows into the diversion chamber 10 and is discharged through the diversion port 4. After a certain period of time, since the inlet flow rate is always greater than the drainage volume at the diversion port 4, the rainwater inside the diversion chamber 10 reaches a certain threshold, which causes the upper float 85 to float up and drive the lower float 86 to close the filter plate 9, so that the subsequent rainwater flows into the outlet 3 through the filter screen 6 and is discharged and collected.

[0025] In this embodiment, the float assembly 8 includes a transmission rod 81 rotatably connected to the outside of the opening and closing assembly 7. The other end of the transmission rod 81 is rotatably connected to a rotating rod 82. The end of the rotating rod 82 away from the transmission rod 81 is rotatably connected to an adjusting member 83. A limiting member 84 is fixedly installed on the outside of the adjusting member 83. An upper float 85 and a lower float 86 are slidably installed on the outside of the adjusting member 83.

[0026] Specifically, such as Figure 4 As shown, the transmission rod 81 can move with the rotation of the opening and closing assembly 7, and drive the rotating rod 82 to rotate, thereby driving the longitudinal displacement of the adjusting member 83. The rotating rod 82 is similar to the lever principle. When the transmission rod 81 rises, it drives the adjusting member 83 to fall, and vice versa. The adjusting member 83, together with the limiting member 84, limits the upper float 85. When the adjusting member 83 moves down, the upper float 85 moves down under the action of gravity. When the upper float 85 comes into contact with enough rainwater, it can drive the lower float 86 to slide on the outside of the adjusting member 83, and block the internal filter port of the filter plate 9 through the lower float 86, so that the subsequent rainwater flows into the outlet 3 for collection. The float assembly 8 can also adopt any other structure that can achieve the same effect.

[0027] In this embodiment, the transmission rod 81 is rotatably installed inside the fixing member 5, the rotating rod 82 is rotatably installed inside the fixing seat and is fixedly connected to the upper end of the fixing member 5 through the fixing seat, the adjusting member 83 is slidably connected inside the fixing member 5, the limiting member 84 is located inside the upper float 85, the upper float 85 is fixedly connected to the lower float 86, the end of the transmission rod 81 away from the rotating rod 82 is rotatably connected to the outside of the adjusting plate 72, and the lower float 86 is located at the bottom of the filter plate 9.

[0028] Specifically, the transmission rod 81 can rotate with the rotation displacement of the adjusting plate 72 and rotate on its outer side. The transmission rod 81 is rotatably installed inside the fixed part 5 through the rotating shaft, and can rotate inside the fixed part 5 through the rotating shaft when displaced. At the same time, it can slide inside the rotating shaft to adjust its position. The rotating rod 82 rotates with the displacement of the transmission rod 81 and drives the adjusting part 83 to move. The upper float ball 85 and the lower float ball 86 are fixedly connected by the sleeve and slidably connected to the outer side of the adjusting part 83. Their positions are limited by the limiting part 84. The lower float ball 86 can block and open the internal filter holes of the filter plate 9 to allow rainwater to flow into the diversion chamber 10.

[0029] In this embodiment, the opening and closing assembly 7 includes a fixing plate 71 fixedly installed at one end of the inlet 2 located inside the tank 1. The fixing plate 71 is rotatably connected to an adjusting plate 72 via a rotating shaft. Specifically, as shown... Figure 3As shown, the fixed plate 71 is fixedly connected to one side of the inlet 2 and is used to install the adjusting plate 72. The adjusting plate 72 can open automatically according to the flow rate of rainwater and adjust the opening range according to the flow rate of rainwater. The adjusting plate 72 is flexible and the pivot is rotatably connected to the fixed plate 71. When rainwater flows into the tank 1 through the inlet 2, it can drive the plate to open. At the same time, the opening and closing component 7 can also be set to any other structure that can achieve the same effect.

[0030] In this embodiment, an outlet 3 is fixedly connected to the side of the tank body 1 away from the inlet 2, a diversion port 4 is provided at the bottom of the outer side of the tank body 1, a filter plate 9 is fixedly installed inside the tank body 1, a diversion chamber 10 is separated inside the tank body 1 by the filter plate 9, and a filter screen 6 is fixedly connected inside the tank body 1. The upper and lower ends of the filter screen 6 are fixedly connected to the fixing member 5 and the filter plate 9, respectively.

[0031] Specifically, tank 1 serves as the outer container of the device. Inlet 2 is used to connect to the drainage pipe of the drainage system and transport rainwater into the tank 1. Outlet 3 is used to connect to the water storage tank and discharge and collect subsequent rainwater. Diversion outlet 4 is used to discharge initial rainwater. Filter screen 6 is used to intercept large particulate pollutants such as leaves and mud. Filter plate 9 allows initial rainwater to flow into diversion chamber 10 through internal filter holes. Diversion chamber 10 is used to collect initial rainwater and discharge it through diversion outlet 4.

[0032] Working principle: The device is installed by the staff at the drainage pipe of the drainage system. It is connected to the drainage pipe through the inlet 2, the outlet 3 is connected to the water storage tank through the pipe, and the diversion outlet 4 is connected to the diversion pipe. After the device is assembled, it can be put into use.

[0033] When rainfall begins, the initial 2-5mm of rainwater or rainwater within a certain period is considered initial rainwater. It carries a certain amount of pollutants and needs to be discharged. As the rainwater flows into the tank 1 through the inlet 2, it drives the regulating plate 72 to rotate. Then, through the cooperation of the transmission rod 81 and the rotating rod 82, the regulating component 83 moves down. This causes the upper float ball 85 to drive the lower float ball 86 to move down, opening the filter port inside the filter plate 9. This allows the initial rainwater to flow into the diversion chamber 10 and be discharged through the diversion port 4. Since the inflow rate of the inlet 2 is always greater than the outflow rate of the diversion port 4, when the rainwater in the diversion chamber 10 reaches a certain level, the subsequent rainwater comes into contact with the upper float ball 85 and causes it to float. This causes the lower float ball 86 to slide outside the regulating component 83, thus blocking the filter port of the filter plate 9. This allows the subsequent rainwater to flow into the outlet 3 through the filter screen 6 and into the water storage tank for collection.

[0034] Then, when the rainfall stops, the rainwater in the drainage system stops flowing, the regulating plate 72 is reset due to the impact of the rainwater, and at the same time, it drives the transmission rod 81 to move, and through the rotating rod 82, it drives the regulating component 83 to move upward, which in turn drives the upper float ball 85 to reset, thus completing the initial rainwater diversion and the subsequent rainwater collection.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A kind of automatic initial rainwater of water supply and drainage system is discarded, including tank and the water inlet fixedly connected to one side of tank, the fixed mounting of fixed part in tank, it is characterized in that: The inlet is fixedly connected to an opening and closing assembly at one end inside the tank, and a float assembly is fixedly connected inside the fixing component. When the initial rainwater flows into the tank through the inlet, the float assembly first contacts the opening and closing component and can control the opening range according to the rainwater flow rate. This causes the float assembly to move downward, allowing the rainwater to flow through the filter plate into the diversion outlet for initial rainwater diversion. After a certain period of time, the water inlet volume exceeds the drainage volume of the diversion outlet, causing the float assembly to move upward and block the filter plate, allowing subsequent rainwater to flow out through the outlet.

2. The automatic initial rainwater flow discarding device of a water supply and drainage system according to claim 1, characterized in that: The float assembly includes a transmission rod rotatably connected to the outside of the opening and closing assembly. The other end of the transmission rod is rotatably connected to a rotating rod. The end of the rotating rod away from the transmission rod is rotatably connected to an adjusting component. A limiting component is fixedly installed on the outside of the adjusting component. An upper float and a lower float are slidably installed on the outside of the adjusting component.

3. The automatic initial rainwater flow discarding device of a water supply and drainage system according to claim 2, characterized in that: The transmission rod is rotatably installed inside the fixed component, the rotating rod is rotatably installed inside the fixed seat and is fixedly connected to the upper end of the fixed component through the fixed seat, the adjusting component is slidably connected inside the fixed component, the limiting component is located inside the upper float ball, and the upper float ball is fixedly connected to the lower float ball.

4. The automatic initial rainwater flow discarding device of a water supply and drainage system according to claim 2, characterized in that: The opening and closing assembly includes a fixed plate that is fixedly installed at one end of the water inlet located inside the tank, and the fixed plate is rotatably connected to an adjusting plate via a rotating shaft.

5. The automatic initial rainwater flow discarding device of a water supply and drainage system according to claim 3, characterized in that: The end of the transmission rod away from the rotating rod is rotatably connected to the outside of the adjusting plate.

6. The automatic initial rainwater flow discarding device of a water supply and drainage system according to claim 4, characterized in that: An outlet is fixedly connected to the outer side of the tank away from the inlet. A diversion outlet is provided at the bottom of the outer side of the tank. A filter plate is fixedly installed inside the tank. A diversion chamber is separated inside the tank by the filter plate. A filter screen is fixedly connected inside the tank. The upper and lower ends of the filter screen are fixedly connected to the fixing parts and the filter plate, respectively.

7. The automatic initial rainwater flow discarding device of a water supply and drainage system according to claim 2, characterized in that: The lower float is located at the bottom of the filter plate.

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