Automatic drainage interception well

Abstract

The present invention relates to an automatic drainage interception well, comprising a well chamber and a closed well cover, wherein the well chamber is divided into a transition chamber, a sewage chamber, an initial rain chamber and an overflow chamber, wherein the transition chamber is located at the upper part of the well chamber, wherein the sewage chamber, the overflow chamber and the initial rain chamber are sequentially connected and arranged at the lower part of the well chamber, wherein the bottom wall of the transition chamber is provided with a flow hole respectively connected with the sewage chamber and the overflow chamber, wherein a first driving mechanism and a second driving mechanism are arranged in the transition chamber, wherein a water inlet pipe connected thereto is arranged on the side wall of the transition chamber, wherein the lower part of the side wall of the sewage chamber, the overflow chamber and the initial rain chamber is respectively connected and arranged with a sewage outlet pipe, an overflow outlet pipe and an initial rain outlet pipe. The present invention realizes automatic classification interception of sewage on sunny days and mixed sewage of rain and sewage on rainy days, so that subsequent sewage treatment facilities and initial rain treatment facilities can carry out targeted treatment, and at the same time, water in the downstream pipeline or water body is not easy to form backflow in the interception well, thereby reducing the treatment load of subsequent treatment facilities and improving their treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of municipal drainage, and in particular to an automatic drainage interception well. Background Art

[0002] The interception well in the interception-type combined sewer network system is one of the important facilities in the system. The drainage interception well is generally set at the end of the combined sewer network system. Its function is to intercept the sewage on sunny days or the mixed sewage of rainwater and sewage in the early stage of rainfall through the same interception pipe, and to overflow the water when the amount of mixed sewage caused by the increase in rainfall in the middle and late stages of rainfall exceeds the drainage capacity of the interception pipe.

[0003] Traditional drainage interception wells often have the following problems: (1) The interception method of traditional drainage interception wells is generally weir-type or trough-type interception. Both methods generally lower the elevation of the interception pipe to achieve interception, which can easily cause water in the downstream pipeline or water body to flow back into the sewage interception pipeline and then into the sewage treatment plant in the interception well. This will not only increase the treatment load of the sewage treatment plant but also change the water quality of the influent, thereby affecting the treatment effect of the sewage treatment plant; (2) The sewage from sunny days and the mixed sewage from rain and sewage at the beginning of rainfall are not intercepted separately, but are directly discharged into the same sewage pipe system downstream. Studies have shown that rainwater at the beginning of rainfall carries a large amount of debris and pipe sediments, and the concentration of pollutants in the mixed sewage from rain and sewage formed is much greater than the concentration of pollutants in the sewage from sunny days. If it is directly discharged into the downstream sewage pipe, it will have a great impact on the subsequent sewage treatment plant or even damage it. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic drainage interception well in view of the deficiencies of the above-mentioned prior art.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: an automatic drainage interception well, including a well chamber with an upper opening and a closed well cover arranged at the upper end of the well chamber and capable of opening or closing its upper port.

[0006] The well chamber is divided into a transition chamber, a sewage chamber, an initial rain chamber and an overflow chamber by a partition. The transition chamber is located at the upper part of the well chamber, and the sewage chamber, overflow chamber and initial rain chamber are sequentially connected and arranged at the lower part of the well chamber, and are all located below the transition chamber. The bottom wall of the transition chamber is provided with flow holes respectively connected with the sewage chamber and the overflow chamber. The transition chamber is provided with a first driving mechanism for opening the passage between the transition chamber and the sewage chamber according to the water level therein, or the passage between the transition chamber and the overflow chamber. The transition chamber is also provided with a second driving mechanism for opening or closing the passage between the overflow chamber and the initial rain chamber according to the water level therein. A water inlet pipe connected thereto is provided on the side wall of the transition chamber, and a sewage outlet pipe, an overflow outlet pipe and an initial rain outlet pipe are respectively connected and arranged at the lower parts of the side walls of the sewage chamber, the overflow chamber and the initial rain chamber.

[0007] The beneficial effects of the present invention are as follows: the automatic drainage interception well of the present invention realizes automatic classification and interception of sewage on sunny days and mixed sewage of rain and sewage on rainy days by dividing the well chamber into a transition chamber, a sewage chamber, an initial rain chamber and an overflow chamber, and then diverting the sewage to the sewage chamber, the overflow chamber or the initial rain chamber through the transition chamber, so that subsequent sewage treatment facilities and initial rain treatment facilities can carry out targeted treatment to give full play to the engineering benefits of each treatment facility, thereby protecting the water quality of the downstream receiving water body. At the same time, the device adopts a structural form of different well chamber compartments and does not reduce the elevation of the initial rain interception pipeline or the sewage interception pipeline. Therefore, the water in the downstream pipeline or water body is not easy to form backflow in the interception well, thereby reducing the treatment load of the corresponding subsequent sewage or initial rain treatment facilities during the rainy season and improving their treatment efficiency.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows:

[0009] Further: a transverse partition is provided in the middle of the well chamber, and the upper part of the well chamber is divided into the transition chamber, and two longitudinal partitions are vertically spaced at intervals in the lower part of the well chamber, and the lower part of the well chamber is sequentially divided into the sewage chamber, the overflow chamber and the initial rain chamber, and the longitudinal partition between the sewage chamber and the overflow chamber is located below the flow hole.

[0010] The beneficial effect of the above further scheme is: the well chamber is divided into a transition chamber, a sewage chamber, an initial rain chamber and an overflow chamber by the transverse partition and the longitudinal partition, and sewage and rainwater can be automatically classified and intercepted under different weather conditions, making it convenient for subsequent treatment facilities to carry out targeted treatment of water bodies of different water qualities, thereby greatly improving the pollution control capacity.

[0011] Further: the flow hole is located in the middle of the transverse partition, and a manhole cover is provided on the transverse partition at the flow hole, and wing plates are respectively provided at both ends of the flow hole on the lower surface of the transverse partition, and the two wing plates are respectively located in the sewage chamber and the overflow chamber, and a gap is left between the upper end of the longitudinal partition between the sewage chamber and the overflow chamber and the lower ends of the two wing plates, so that a sewage outlet and a water inlet are respectively formed between the longitudinal partition between the sewage chamber and the overflow chamber and the two wing plates, and a first baffle is rotatably provided at the upper end of the longitudinal partition between the sewage chamber and the overflow chamber, and one end of the first driving mechanism passes through the transverse partition and extends into the sewage chamber, and is connected and fixed to the middle part of the first baffle, and the first driving mechanism can drive the first baffle to rotate according to the water level in the transition chamber, so that the first baffle rotates to abut against the wing plate in the sewage chamber or the overflow chamber to open the sewage outlet or the water inlet.

[0012] The beneficial effect of the above further scheme is: by arranging the wing plates at both ends of the flow hole, and rotatably arranging the first baffle plate at the upper end of the longitudinal partition plate between the sewage chamber and the overflow chamber, the first driving mechanism can drive the first baffle plate to rotate until it abuts against the wing plates in the sewage chamber or the overflow chamber to open the water inlet or the sewage outlet, thereby realizing automatic classification and interception of sewage on sunny days and mixed sewage of rain and sewage on rainy days, and the action is automated, which is very convenient and the control is precise.

[0013] Further: the first driving mechanism includes a first horizontal spring, a first fixed pulley, a first pull rope, a first floating block and a first vertical spring, the first fixed pulley is fixed to the bottom of the transverse partition through a first fixed rod, one end of the first vertical spring is connected and fixed to the inner top wall of the closed manhole cover, and the other end is connected and fixed to the upper end of the first floating block, the lower end of the first floating block is connected and fixed to the upper end of the first pull rope, the lower end of the first pull rope extends into the sewage chamber and is connected and fixed to one end of the first horizontal spring after bypassing the first fixed pulley, the other end of the first horizontal spring is connected and fixed to the middle part of the first baffle, and when the water level in the transition chamber gradually rises or falls, the first floating block moves upward or downward, and gradually pulls or releases the first baffle through the first pull rope to open the passage between the transition chamber and the overflow chamber, or the passage between the transition chamber and the sewage chamber.

[0014] The beneficial effect of the above further scheme is that the first floating block can drive the first pull rope and the first horizontal spring to pull the first baffle to rotate according to the water level in the transition chamber, thereby realizing the switching of the sewage outlet and the water inlet, and automatically controlling according to the water level in the transition chamber, which is very convenient and realizes automatic classification and interception of different water quality.

[0015] Further: the first driving mechanism also includes a first sleeve with closed pistons at both ends and a retractable middle part. A first through hole matching the first sleeve is provided on the diaphragm located on one side of the sewage chamber. The first sleeve is embedded in the first through hole, and the first sleeve is located in the middle of the first pull rope. The upper end of the first pull rope is connected and fixed to the lower end of the first floating block, and the lower end of the first pull rope extends into the sewage chamber and passes around the first fixed pulley and is connected and fixed to one end of the first horizontal spring.

[0016] The beneficial effect of the above further scheme is: by setting the first sleeve, the lower end of the first pull rope can be conveniently passed through the transition chamber and extended into the sewage chamber, and when the first floating block moves up and down according to the water level in the transition chamber, it can move accordingly to pull the first baffle, and at the same time, it can also prevent the mixed rainwater and sewage in the transition chamber or the sewage from not flowing through the flow hole and directly entering the sewage chamber, affecting the classification and interception effect.

[0017] Further: a primary rain port connecting the overflow chamber and the primary rain chamber is provided in the middle of the longitudinal partition between the overflow chamber and the primary rain chamber, and a second baffle rotatably connected to the primary rain port and used to open or close the primary rain port;

[0018] A support plate is horizontally provided at the middle of one side wall of the longitudinal partition plate between the overflow chamber and the sewage chamber, and the length of the support plate is smaller than the width of the overflow chamber, so that an overflow port is formed between the longitudinal partition plate between the overflow chamber and the primary rain chamber and the support plate;

[0019] One end of the second driving mechanism passes through the transverse partition and extends into the primary rain chamber, and is fixedly connected to the middle part of the second baffle. The second driving mechanism can drive the second baffle to rotate according to the water level in the transition chamber to open the primary rain port or the overflow port.

[0020] The beneficial effect of the above further scheme is: by setting the support plate and forming the overflow port with the longitudinal partition between the overflow chamber and the initial rain chamber, and the initial rain port set on the longitudinal partition between the overflow chamber and the initial rain chamber, the second driving mechanism can drive the second baffle to rotate and open the initial rain port or the overflow port, thereby realizing the classified interception of rainwater in the initial stage of rainfall and rainwater in the middle and late stages of rainfall, which is convenient for separating rainwater in the initial stage of rainfall with poor water quality and rainwater in the middle and late stages of rainfall with relatively good water quality, and facilitating subsequent targeted treatment.

[0021] Further: the second driving mechanism includes a second horizontal spring, a second fixed pulley, a second pull rope, a second floating block and a second vertical spring, the second fixed pulley is fixed to the bottom of the transverse partition through a second fixed rod, one end of the second vertical spring is connected and fixed to the inner top wall of the closed manhole cover, and the other end is connected and fixed to the upper end of the second floating block, the lower end of the second floating block is connected and fixed to the upper end of the second pull rope, the lower end of the second pull rope extends into the initial rain chamber and is connected and fixed to one end of the second horizontal spring after bypassing the second fixed pulley, the other end of the second horizontal spring is connected and fixed to the middle part of the second baffle, and when the water level in the transition chamber gradually rises or falls, the second floating block moves upward or downward and gradually pulls or releases the second baffle through the second pull rope to open the overflow port or the initial rain port.

[0022] The beneficial effect of the above further scheme is: the second floating block can drive the second pull rope and the second horizontal spring to pull the second baffle to rotate according to the water level in the transition chamber, thereby realizing the switching of the initial rain outlet and the overflow outlet, and automatically controlling according to the water level in the transition chamber, which is very convenient and realizes automatic classification and interception of different water qualities.

[0023] Further: the second driving mechanism also includes a second sleeve with closed pistons at both ends and a retractable middle part. A second through hole matching the second sleeve is provided on the diaphragm located on one side of the initial rain chamber. The second sleeve is embedded in the second through hole, and the second sleeve is located in the middle of the second pull rope. The upper end of the second pull rope is connected and fixed to the lower end of the second floating block, and the lower end of the second pull rope extends into the initial rain chamber and is connected and fixed to one end of the second horizontal spring after bypassing the second fixed pulley.

[0024] The beneficial effect of the above further scheme is: by setting the second sleeve, the lower end of the second pull rope can be conveniently passed through the transition chamber and extended into the primary rain chamber, and when the second floating block moves up and down according to the water level in the transition chamber, it can move accordingly to pull the second baffle to rotate, while also preventing the mixed rainwater and sewage in the transition chamber or sewage from directly entering the primary rain chamber without flowing through the flow hole, affecting the classification and interception effect.

[0025] Further: the upper end of the longitudinal partition between the overflow chamber and the initial rain chamber extends to be connected and fixed to the inner top wall of the transverse partition.

[0026] The beneficial effect of the above further scheme is: by extending the upper end of the longitudinal partition between the overflow chamber and the initial rain chamber to be connected and fixed to the inner top wall of the transverse partition, when the second baffle opens the overflow port, the water level in the overflow chamber can be prevented from being too high and causing water to overflow into the initial rain chamber, thereby ensuring the effect of classified interception.

[0027] Further: when the second driving mechanism closes the passage between the overflow chamber and the initial rain chamber, the corresponding water level in the transition chamber is higher than the corresponding water level when the first driving mechanism opens the passage between the transition chamber and the overflow chamber.

[0028] The beneficial effect of the above further scheme is: through the above arrangement, the first drive mechanism and the second drive mechanism will not operate when discharging sewage on sunny days, and only the first drive mechanism will operate in the initial rain, and both the first drive mechanism and the second drive mechanism will operate in the late stage of the initial rain, which is convenient for classified interception control of water bodies with different water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a longitudinal cross-sectional schematic diagram of the automatic drainage interception well of the present invention;

[0030] Figure 2 It is a schematic AA cross-sectional view of the automatic drainage interception well of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Well chamber, 2. Closed well cover, 3. Side plate, 4. Bottom plate, 5. Horizontal partition, 6. Longitudinal partition, 7. Transition chamber, 8. Sewage chamber, 9. Initial rain chamber, 10. Overflow chamber, 11. Flow hole, 12. Water inlet, 13. Initial rain outlet, 14. Open well cover, 15. Wing plate, 16. First rotating shaft, 17. First baffle, 18. Second rotating shaft, 19. Second baffle, 20. Support plate, 21. Overflow, 22. First driving mechanism, 23. Second driving mechanism, 24 , water inlet pipe, 25, sewage outlet pipe, 26, initial rain outlet pipe, 27, overflow outlet pipe, 28, first horizontal spring, 29, first fixed pulley, 30, first pull rope, 31, first floating block, 32, first vertical spring, 33, first fixed rod, 34, first sleeve, 35, second horizontal spring, 36, second fixed pulley, 37, second pull rope, 38, second floating block, 39, second vertical spring, 40, second fixed rod, 41, second sleeve, 42, sewage outlet. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1 As shown, an automatic drainage interception well comprises a well chamber 1 with an upper opening and a closed well cover 2 which is arranged at the upper end of the well chamber 1 and can open or close its upper port;

[0035] The well chamber 1 is divided into a transition chamber 7, a sewage chamber 8, an initial rain chamber 9 and an overflow chamber 10 by a partition. The transition chamber 7 is located at the upper part of the well chamber 1. The sewage chamber 8, the overflow chamber 10 and the initial rain chamber 9 are sequentially connected and arranged at the lower part of the well chamber 1, and are all located below the transition chamber 7. The bottom wall of the transition chamber 7 is provided with a flow hole 11 connected with the sewage chamber 8 and the overflow chamber 10 respectively. The transition chamber 7 is provided with a valve for opening the transition chamber 7 and the sewage chamber 8 according to the water level therein. The transition chamber 7 is also provided with a second driving mechanism 23 for opening or closing the channel between the overflow chamber 10 and the initial rain chamber 9 according to the water level therein; a water inlet pipe 24 connected thereto is provided on the side wall of the transition chamber 7; a sewage outlet pipe 25, an overflow outlet pipe 27 and an initial rain outlet pipe 26 are respectively connected to the lower parts of the side walls of the sewage chamber 8, the overflow chamber 10 and the initial rain chamber 9.

[0036] The automatic drainage interception well of the present invention realizes automatic classification and interception of sewage on sunny days and mixed sewage of rain and sewage on rainy days by dividing the well chamber 1 into a transition chamber 7, a sewage chamber 8, an initial rain chamber 9 and an overflow chamber 10, and then diverting the sewage to the sewage chamber 8, the overflow chamber 10 or the initial rain chamber 9 through the transition chamber 7, so that subsequent sewage treatment facilities and initial rain treatment facilities can carry out targeted treatment to give full play to the engineering benefits of each treatment facility, thereby protecting the water quality of the downstream receiving water body. At the same time, the device adopts a structural form of different well chamber compartments and does not reduce the elevation of the initial rain interception pipeline or the sewage interception pipeline. Therefore, the water in the downstream pipeline or water body is not easy to form backflow in the interception well, thereby reducing the treatment load of the corresponding sewage or initial rain treatment facilities during the rainy season and improving its treatment efficiency.

[0037] The automatic drainage interception well of the present invention, the well chamber 1 comprises a plurality of side plates 3 and a bottom plate 4, the plurality of side plates 3 are connected end to end in sequence to form a cylindrical structure with upper and lower ends open, the bottom plate 4 is arranged at the bottom of the cylindrical structure to form the well chamber 1 with an upper end open. In practice, four or more side plates 3 may be selected to be connected end to end in sequence, and the bottom plate 4 may be fixed to the lower end of each side plate 3, so as to form the well chamber 1 with an upper end open.

[0038] In one or more embodiments provided by the present invention, a transverse partition 5 is provided in the middle of the well chamber 1, and the upper part of the well chamber 1 is divided into the transition chamber 7, and two longitudinal partitions 6 are provided vertically at intervals in the lower part of the well chamber 1, and the lower part of the well chamber 1 is sequentially divided into the sewage chamber 8, the overflow chamber 10 and the initial rain chamber 9, and the longitudinal partition 6 between the sewage chamber 8 and the overflow chamber 10 is located below the flow hole 11. The well chamber 1 is divided into the transition chamber 7, the sewage chamber 8, the initial rain chamber 9 and the overflow chamber 10 by the transverse partition 5 and the longitudinal partition 6, and the sewage and rainwater can be automatically classified and intercepted under different weather conditions, which is convenient for subsequent treatment facilities to carry out targeted treatment of water bodies of different water qualities, and greatly improves the pollution control capacity.

[0039] In one or more embodiments provided by the present invention, the flow hole 11 is located in the middle of the transverse partition 5, and the transverse partition 5 is provided with a hole cover 14 at the flow hole 11, and the lower surface of the transverse partition 5 is provided with wing plates 15 at both ends of the flow hole 11, and the two wing plates 15 are respectively located in the sewage chamber 8 and the overflow chamber 10, and a gap is left between the upper end of the longitudinal partition 6 between the sewage chamber 8 and the overflow chamber 10 and the lower ends of the two wing plates 15, so that the longitudinal partition 6 between the sewage chamber 8 and the overflow chamber 10 and the two wing plates A sewage outlet 42 and a water inlet 12 are respectively formed between the transition chamber 7 and the overflow chamber 10, and a first baffle 17 is rotatably provided at the upper end of the longitudinal partition 6 between the sewage chamber 8 and the overflow chamber 10, and one end of the first driving mechanism 22 passes through the transverse partition 5 and extends into the sewage chamber 8, and is fixedly connected to the middle part of the first baffle 17, and the first driving mechanism 22 can drive the first baffle 17 to rotate according to the water level in the transition chamber 7, so that the first baffle 17 rotates to abut against the wing 15 in the sewage chamber 8 or the overflow chamber 10 to open the water inlet 12 or the sewage outlet 42. By arranging the wing plates 15 at both ends of the flow hole 11 and rotatably arranging the first baffle plate 17 at the upper end of the longitudinal partition plate 6 between the sewage chamber 8 and the overflow chamber 10, the first driving mechanism 22 can drive the first baffle plate 17 to rotate until it abuts against the wing plates 15 in the sewage chamber 8 or the overflow chamber 10 to open the water inlet 12 or the sewage outlet 42, thereby realizing automatic classification and interception of sewage on sunny days and mixed sewage of rain and sewage on rainy days, and the action is automated, which is very convenient and the control is precise.

[0040] In practice, the first baffle 17 is rotatably provided at the upper end of the longitudinal partition 6 between the sewage chamber 8 and the overflow chamber 10 via the first rotating shaft 16 .

[0041] In one or more embodiments provided by the present invention, the first driving mechanism 22 includes a first horizontal spring 28, a first fixed pulley 29, a first pull rope 30, a first floating block 31 and a first vertical spring 32, the first fixed pulley 29 is fixed to the bottom of the transverse partition 5 by a first fixing rod 33, one end of the first vertical spring 32 is connected and fixed to the inner top wall of the closed manhole cover 2, and the other end is connected and fixed to the upper end of the first floating block 31, the lower end of the first floating block 31 is connected and fixed to the upper end of the first pull rope 30, the lower end of the first pull rope 30 extends into the sewage chamber 8 and is connected and fixed to one end of the first horizontal spring 28 after bypassing the first fixed pulley 29, the other end of the first horizontal spring 28 is connected and fixed to the middle part of the first baffle 17, and when the water level in the transition chamber 7 gradually rises or falls, the first floating block 31 moves upward or downward, and gradually pulls or releases the first baffle 17 through the first pull rope 30 to open the passage between the transition chamber 7 and the overflow chamber 10, or the passage between the transition chamber 7 and the sewage chamber 8. The first floating block 31 can drive the first pull rope 30 and the first horizontal spring 28 to pull the first baffle 17 to rotate according to the water level in the transition chamber 7, thereby realizing the switching of the sewage outlet 42 and the water inlet 12. It is automatically controlled according to the water level in the transition chamber 7, which is very convenient and realizes automatic classification and interception of different water qualities.

[0042] Optionally, in one or more embodiments provided by the present invention, the first driving mechanism 22 further includes a first sleeve 34 with closed pistons at both ends and a retractable middle portion, a first through hole matching the first sleeve 34 is provided on the diaphragm 5 at one side of the sewage chamber 8, the first sleeve 34 is embedded in the first through hole, and the first sleeve 34 is located in the middle of the first pull rope 30, the upper end of the first pull rope 30 is connected and fixed with the lower end of the first floating block 31, the lower end of the first pull rope 30 extends into the sewage chamber 8 and is connected and fixed with one end of the first horizontal spring 28 after passing through the first fixed pulley 29. The first sleeve 34 can be provided to facilitate the lower end of the first pull rope 30 to pass through the transition chamber 7 and extend into the sewage chamber 8, and the first floating block 31 can move with it when it moves up and down according to the water level in the transition chamber 7 to pull the first baffle 17, and at the same time, it can prevent the rainwater and sewage mixed sewage or sewage in the transition chamber 7 from directly entering the sewage chamber 8 without flowing through the flow hole 11, thereby affecting the classification and interception effect. In practice, the first pull rope 30 is divided into two sections, the two ends of one section are respectively connected and fixed to the lower end of the first floating block 31 and the closed piston at one end of the first sleeve 34, and the two ends of the other section are respectively connected and fixed to the closed piston at the other end of the first sleeve 34 and one end of the first horizontal spring 28.

[0043] In one or more embodiments provided by the present invention, a primary rain outlet 13 connecting the overflow chamber 10 and the primary rain chamber 9 and a second baffle 19 rotatably connected to the primary rain outlet 13 and used to open or close the primary rain outlet 13 are provided in the middle of the longitudinal partition 6 between the overflow chamber 10 and the sewage chamber 8; a support plate 20 is horizontally provided in the middle of a side wall of the longitudinal partition 6 between the overflow chamber 10 and the sewage chamber 8 located in the overflow chamber 10, and the length of the support plate 20 is less than the width of the overflow chamber 10, so that an overflow outlet 21 is formed between the longitudinal partition 6 between the overflow chamber 10 and the primary rain chamber 9 and the support plate 20; one end of the second driving mechanism 23 passes through the transverse partition 5 and extends into the primary rain chamber 9, and is connected and fixed to the middle of the second baffle 19, and the second driving mechanism 23 can drive the second baffle 19 to rotate according to the water level in the transition chamber 7 to open the primary rain outlet 13 or the overflow outlet 21. By setting the support plate 20 and forming the overflow port 21 with the longitudinal partition 6 between the overflow chamber 10 and the sewage chamber 8, and the initial rain port 13 set on the longitudinal partition 6 between the overflow chamber 10 and the sewage chamber 8, the second driving mechanism 23 can drive the second baffle 19 to rotate and open the initial rain port 13 or the overflow port 21, thereby realizing the classified interception of rainwater at the initial stage of rainfall and rainwater in the middle and late stages of rainfall, which is convenient for separating rainwater at the initial stage of rainfall with poor water quality and rainwater in the middle and late stages of rainfall with relatively good water quality, so as to facilitate targeted treatment by subsequent treatment facilities.

[0044] In practice, the second baffle 19 is rotatably provided at the initial rain outlet 13 in the middle of the longitudinal partition 6 via the second rotating shaft 18 .

[0045] In one or more embodiments provided by the present invention, the second driving mechanism 23 includes a second horizontal spring 35, a second fixed pulley 36, a second pull rope 37, a second floating block 38 and a second vertical spring 39, the second fixed pulley 36 is fixed to the bottom of the transverse partition 5 by a second fixing rod 40, one end of the second vertical spring 39 is connected and fixed to the inner top wall of the closed manhole cover 2, and the other end is connected and fixed to the upper end of the second floating block 38, the lower end of the second floating block 38 is connected and fixed to the upper end of the second pull rope 37, the lower end of the second pull rope 37 extends into the initial rain chamber 9 and is connected and fixed to one end of the second horizontal spring 35 after bypassing the second fixed pulley 36, the other end of the second horizontal spring 35 is connected and fixed to the middle part of the second baffle 19, and when the water level in the transition chamber 7 gradually rises or falls, the second floating block 38 moves upward or downward and gradually pulls or releases the second baffle 19 through the second pull rope 37 to open the overflow port 21 or the initial rain port 13. The second floating block 38 can drive the second pull rope 37 and the second horizontal spring 35 to pull the second baffle 19 to rotate according to the water level in the transition chamber 7, thereby realizing the switching of the initial rain outlet 13 and the overflow outlet 21. It is automatically controlled according to the water level in the transition chamber 7, which is very convenient and realizes automatic classification and interception of different water qualities.

[0046] In one or more embodiments provided by the present invention, the second driving mechanism 23 further includes a second sleeve 41 with closed pistons at both ends and a retractable middle part, a second through hole matching the second sleeve 41 is provided on the diaphragm 5 at one side of the initial rain chamber 9, the second sleeve 41 is embedded in the second through hole, and the second sleeve 41 is located in the middle of the second pull rope 37, the upper end of the second pull rope 37 is connected and fixed with the lower end of the second floating block 38, the lower end of the second pull rope 37 extends into the initial rain chamber 9 and is connected and fixed with one end of the second horizontal spring 35 after bypassing the second fixed pulley 36. By providing the second sleeve 41, it is convenient for the lower end of the second pull rope 37 to pass through the transition chamber 7 and extend into the initial rain chamber 9, and when the second floating block 38 moves up and down according to the water level in the transition chamber 7, it can move with it to pull the second baffle 19 to rotate, and at the same time, it can prevent the rainwater and sewage mixed sewage or sewage in the transition chamber 7 from flowing directly into the initial rain chamber 9 without passing through the flow hole 11, affecting the classification and interception effect. In practice, the second pull rope 37 is also divided into two sections, the two ends of one section are respectively connected and fixed to the lower end of the second floating block 38 and the closed piston at one end of the second sleeve 41, and the two ends of the other section are respectively connected and fixed to the closed piston at the other end of the second sleeve 41 and one end of the second horizontal spring 35.

[0047] Optionally, in one or more embodiments provided by the present invention, the upper end of the longitudinal partition 6 between the overflow chamber 10 and the initial rain chamber 9 is extended to be connected and fixed with the inner top wall of the transverse partition 5. By extending the upper end of the longitudinal partition 6 between the overflow chamber 10 and the initial rain chamber 9 to be connected and fixed with the inner top wall of the transverse partition 5, when the second baffle 19 opens the overflow port 21, it is possible to avoid the water level in the overflow chamber 10 being too high to cause the water flow to overflow into the initial rain chamber 9, thereby ensuring the effect of classified interception.

[0048] Optionally, in one or more embodiments provided by the present invention, the water level in the transition chamber 7 corresponding to when the second driving mechanism 23 closes the passage between the overflow chamber 10 and the initial rain chamber 9 is higher than the water level corresponding to when the first driving mechanism 22 opens the passage between the transition chamber 7 and the overflow chamber 10. Through the above arrangement, the first driving mechanism 22 and the second driving mechanism 23 are not activated during sewage discharge on sunny days, and only the first driving mechanism 22 is activated during initial rain, and both the first driving mechanism 22 and the second driving mechanism 23 are activated in the late initial rain, so as to facilitate classified interception control for water bodies of different water qualities.

[0049] Specifically, when the water level in the transition chamber 7 continues to rise, the first floating block 31 is first floated, and as the water level in the transition chamber 7 continues to rise, the second floating block 38 is floated, so as to ensure that the first driving mechanism 22 and the second driving mechanism 23 work in an orderly manner, so as to realize the automatic classification and interception of sewage on sunny days and mixed sewage on rainy days. In order to realize the above functions, in practice, the length of the first vertical spring 32 is set to be greater than the length of the second vertical spring 39, so that when the water level in the transition chamber 7 rises, the first floating block 31 is floated first, and then the second floating block 38 is floated.

[0050] The automatic drainage interception well of the present invention can classify and intercept different types of drainage in dry and rainy seasons. The specific principle is as follows:

[0051] When it is not raining, the first vertical spring 32, the first horizontal spring 28, the second vertical spring 39 and the second horizontal spring 35 are all in a slightly stretched state, the first baffle 17 abuts against the wing plate 15 on one side of the water inlet 12 and covers the water inlet 12, the second baffle 19 abuts against the support plate 20 and completely covers the overflow port 21. Since it is not raining, the upstream water is mainly sunny sewage at this time. The sunny sewage enters the transition chamber 7 through the water inlet pipe 24, and enters the sewage chamber 8 through the perforated manhole cover 14 and the flow hole 11 in turn, and is discharged to the downstream sewage pipe through the sewage outlet pipe 25 connected to the sewage chamber 8.

[0052] When it starts to rain, the upstream water is mainly mixed sewage of rainwater and sewage. At this time, since the amount of rainwater is not large, the first baffle 17 still abuts against the wing plate 15 on one side of the overflow chamber 10 and completely covers the water inlet 12. The second baffle 19 is placed on the support plate 20 and completely covers the overflow port 21. At this time, the mixed sewage of rainwater and sewage still enters the transition chamber 7 through the water inlet pipe 24, and enters the sewage chamber 8 through the perforated manhole cover 14 and the flow port 11 in turn, and is discharged to the downstream sewage pipe through the sewage outlet pipe 25;

[0053] As the rain continues to fall, the amount of rainwater increases, and the amount of mixed rainwater and sewage from upstream also increases. The mixed rainwater and sewage continues to enter the transition chamber 7 through the water inlet pipe 24, and enter the sewage chamber 8 through the perforated manhole cover 14 and the flow port 11 in turn, and is discharged from the sewage outlet pipe 25. However, since the amount of mixed rainwater and sewage added in the transition chamber 7 is greater than the amount of water discharged into the sewage chamber 8 through the small holes on the perforated manhole cover 14, the water level in the transition chamber 7 gradually rises. As the water level in the transition chamber 7 continues to rise, until it floats, the first float block 31 floats upward. , and in turn drives the first pull rope 30 and the first horizontal spring 28, and then pulls the first baffle 17 to rotate around the first rotation axis 16 to the wing plate 15 on the side away from the overflow chamber 10 until it abuts against the wing plate 15 on the other side, thereby opening the water inlet 12 and closing the sewage outlet 42 at the same time. At this time, the mixed rainwater and sewage no longer enter the sewage chamber 8, but pass through the perforated manhole cover 14, the flow outlet 11, the water inlet 12 and the initial rain hole 13 in turn into the initial rain chamber 9, and are discharged from the initial rain outlet pipe 26 connected to the initial rain chamber 9, and discharged into the downstream initial rain pipe.

[0054] As the rain continues to fall, the amount of rainwater continues to increase, and the amount of mixed sewage from upstream also continues to increase. However, since the amount of mixed sewage added in the transition chamber 7 is still greater than the amount of water discharged into the primary rain chamber 9 through the small holes on the perforated manhole cover 14, the water level in the transition chamber 7 continues to rise. As the water level in the transition chamber 7 continues to rise, the second floating block 38 floats on it, causing it to move upward and drive the second pull rope 37 and the second horizontal spring 35 in turn, thereby pulling the second baffle 19 to rotate around the second rotation axis 18 to the side away from the overflow port 21 until it is placed on the longitudinal partition 6 and completely covers it. The first floating block 31 continues to move upward and drives the first pull rope 30 and the first horizontal spring 28 in turn, so that the first baffle 17 on the wing plate 15 that has been abutted against one side of the sewage chamber 8 is still abutted against the wing plate 15. At this time, the mixed sewage no longer enters the primary rain chamber 9, but passes through the perforated manhole cover 14, the flow port 11, the water inlet 12 and the overflow hole 21 in turn into the overflow chamber 10, and is discharged by the overflow outlet pipe 27 connected to the overflow chamber 10, and discharged into the downstream rainwater pipe.

[0055] After the rain stops, the mixed sewage during rain and sewage in the transition chamber 7 and the sewage on sunny days entering through the water inlet pipe 24 continue to enter the overflow chamber 10 through the perforated manhole cover 14, the flow port 11, the water inlet 12 and the overflow port 21 in sequence, and are discharged through the overflow outlet pipe 27 connected to the overflow chamber 10. During this process, the water level in the transition chamber 7 drops rapidly. When the water level in the transition chamber 7 drops to the point where the second floating block 38 no longer floats, the second floating block 38 moves downward due to the restoring force of the second vertical spring 39, and then the second pull rope is pulled upward. 37 makes the second horizontal spring 35 return to the initial state. In this process, due to the restoring force of the second horizontal spring 35 acting on the second baffle plate 19, it rotates around the second rotation axis 18 and gradually moves away from the longitudinal partition plate 6 between the overflow chamber 10 and the initial rain chamber 9, until the second baffle plate 19 is placed on the support plate 20 and completely covers the overflow hole 21. At this time, the rainwater and sewage mixed sewage in the transition chamber 7 during rain and the sunny sewage entering through the water inlet pipe 24 are discharged through the opening manhole cover 14, the flow port 11, the water inlet 12 and the initial rain chamber 9 in sequence. The rain hole 13 enters the initial rain chamber 9 and is discharged by the overflow outlet pipe 27 connected to the initial rain chamber 9. During this process, the water level in the transition chamber 7 still drops rapidly. When the water level in the transition chamber 7 drops to the point where the first floating block 31 no longer floats, the first floating block 31 moves downward due to the restoring force of the first vertical spring 32, and then the first horizontal spring 28 returns to the initial state through the first pull rope 30. During this process, the restoring force of the first horizontal spring 28 acts on the first baffle 17, causing it to rotate around the first rotation axis 16. The first baffle 17 abuts against the wing 15 on one side of the overflow chamber 10 and completely covers the water inlet 12. The second baffle 19 is placed on the support plate 20 and completely covers the overflow port 21.

[0056] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "multiple embodiments", "examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. An automatic drainage interception well, characterized in that: It comprises a well chamber (1) with an opening at the upper end and a closed well cover (2) arranged at the upper end of the well chamber (1) and capable of opening or closing an upper port thereof; The well chamber (1) is divided into a transition chamber (7), a sewage chamber (8), an initial rain chamber (9) and an overflow chamber (10) by a partition. The transition chamber (7) is located at the upper part of the well chamber (1). The sewage chamber (8), the overflow chamber (10) and the initial rain chamber (9) are arranged in sequence at the lower part of the well chamber (1) and are all located below the transition chamber (7). The bottom wall of the transition chamber (7) is provided with a flow hole (11) which is respectively connected to the sewage chamber (8) and the overflow chamber (10). The transition chamber (7) is provided with a valve for opening the transition chamber (7) and the sewage chamber (8) according to the water level therein. a first driving mechanism (22) for opening a passage between the sewage chamber (8), or a passage between the transition chamber (7) and the overflow chamber (10); the transition chamber (7) is further provided with a second driving mechanism (23) for opening or closing the passage between the overflow chamber (10) and the initial rain chamber (9) according to the water level therein; a water inlet pipe (24) is provided on the side wall of the transition chamber (7) and is in communication with the transition chamber (7); and a sewage outlet pipe (25), an overflow outlet pipe (27) and an initial rain outlet pipe (26) are provided at the lower parts of the side walls of the sewage chamber (8), the overflow chamber (10) and the initial rain chamber (9) and are in communication with each other; A transverse partition (5) is provided in the middle of the well chamber (1), and the upper part of the well chamber (1) is divided into the transition chamber (7); two longitudinal partitions (6) are provided vertically at intervals in the lower part of the well chamber (1), and the lower part of the well chamber (1) is sequentially divided into the sewage chamber (8), the overflow chamber (10) and the initial rain chamber (9); and the longitudinal partition (6) between the sewage chamber (8) and the overflow chamber (10) is located below the flow hole (11); The flow hole (11) is located in the middle of the transverse partition (5), and a hole cover (14) is provided on the transverse partition (5) at the flow hole (11). The lower surface of the transverse partition (5) is provided with wing plates (15) at both ends of the flow hole (11). The two wing plates (15) are respectively located in the sewage chamber (8) and the overflow chamber (10), and a gap is left between the upper end of the longitudinal partition (6) between the sewage chamber (8) and the overflow chamber (10) and the lower ends of the two wing plates (15), so that a gap is formed between the longitudinal partition (6) between the sewage chamber (8) and the overflow chamber (10) and the two wing plates (15). A sewage outlet (42) and a water inlet (12), a first baffle (17) is rotatably provided at the upper end of the longitudinal partition (6) between the sewage chamber (8) and the overflow chamber (10), and one end of the first driving mechanism (22) passes through the transverse partition (5) and extends into the sewage chamber (8), and is connected and fixed to the middle part of the first baffle (17), and the first driving mechanism (22) can drive the first baffle (17) to rotate according to the water level in the transition chamber (7), so that the first baffle (17) rotates to abut against the wing plate (15) in the sewage chamber (8) or the overflow chamber (10), so as to open the water inlet (12) or the sewage outlet (42); The first driving mechanism (22) comprises a first horizontal spring (28), a first fixed pulley (29), a first pull rope (30), a first floating block (31) and a first vertical spring (32); the first fixed pulley (29) is fixed to the bottom of the transverse partition (5) via a first fixing rod (33); one end of the first vertical spring (32) is connected and fixed to the inner top wall of the closed manhole cover (2); the other end is connected and fixed to the upper end of the first floating block (31); the lower end of the first floating block (31) is connected and fixed to the upper end of the first pull rope (30); the lower end of the first pull rope (30) extends into the manhole cover (2); The first horizontal spring (28) is connected and fixed to one end of the first horizontal spring (28) after passing through the first fixed pulley (29) in the sewage chamber (8); the other end of the first horizontal spring (28) is connected and fixed to the middle of the first baffle (17); and when the water level in the transition chamber (7) gradually rises or falls, the first floating block (31) moves upward or downward, and gradually pulls or releases the first baffle (17) through the first pull rope (30) to open a passage between the transition chamber (7) and the overflow chamber (10), or a passage between the transition chamber (7) and the sewage chamber (8); A primary rain port (13) connecting the overflow chamber (10) and the primary rain chamber (9) is provided in the middle of the longitudinal partition (6) between the overflow chamber (10) and the primary rain chamber (9), and a second baffle (19) rotatably connected to the primary rain port (13) and used to open or close the primary rain port (13); A support plate (20) is horizontally provided on the longitudinal partition plate (6) between the overflow chamber (10) and the sewage chamber (8) at the middle of a side wall located inside the overflow chamber (10), and the length of the support plate (20) is smaller than the width of the overflow chamber (10), so that an overflow port (21) is formed between the longitudinal partition plate (6) between the overflow chamber (10) and the primary rain chamber (9) and the support plate (20); One end of the second driving mechanism (23) passes through the transverse partition (5) and extends into the initial rain chamber (9), and is connected and fixed to the middle part of the second baffle (19), and the second driving mechanism (23) can drive the second baffle (19) to rotate according to the water level in the transition chamber (7) to open the initial rain port (13) or the overflow port (21); The second driving mechanism (23) comprises a second horizontal spring (35), a second fixed pulley (36), a second pull rope (37), a second floating block (38) and a second vertical spring (39); the second fixed pulley (36) is fixed to the bottom of the transverse partition (5) via a second fixing rod (40); one end of the second vertical spring (39) is connected and fixed to the inner top wall of the closed manhole cover (2); the other end is connected and fixed to the upper end of the second floating block (38); the lower end of the second floating block (38) is connected and fixed to the upper end of the second pull rope (37); The lower end of the second pull rope (37) extends into the initial rain chamber (9) and passes around the second fixed pulley (36) before being connected and fixed to one end of the second horizontal spring (35); the other end of the second horizontal spring (35) is connected and fixed to the middle of the second baffle (19); and when the water level in the transition chamber (7) gradually rises or falls, the second floating block (38) moves upward or downward and gradually pulls or releases the second baffle (19) through the second pull rope (37) to open the overflow port (21) or the initial rain port (13); The water level in the transition chamber (7) corresponding to when the second driving mechanism (23) closes the passage between the overflow chamber (10) and the initial rain chamber (9) is higher than the water level corresponding to when the first driving mechanism (22) opens the passage between the transition chamber (7) and the overflow chamber (10).

2. The automatic drainage interception well according to claim 1, characterized in that: The first driving mechanism (22) further comprises a first sleeve (34) with closed pistons at both ends and a retractable middle portion. A first through hole matching the first sleeve (34) is provided on the transverse partition (5) at one side of the sewage chamber (8). The first sleeve (34) is embedded in the first through hole and is located in the middle of the first pull rope (30). The upper end of the first pull rope (30) is connected and fixed to the lower end of the first floating block (31). The lower end of the first pull rope (30) extends into the sewage chamber (8) and passes around the first fixed pulley (29) before being connected and fixed to one end of the first horizontal spring (28).

3. The automatic drainage interception well according to claim 1, characterized in that: The second driving mechanism (23) further comprises a second sleeve (41) with closed pistons at both ends and a retractable middle portion, a second through hole matching the second sleeve (41) is provided on the diaphragm (5) at one side of the initial rain chamber (9), and the second sleeve (41) is embedded in the second through hole, the second sleeve (41) is located in the middle of the second pull rope (37), the upper end of the second pull rope (37) is connected and fixed to the lower end of the second floating block (38), and the lower end of the second pull rope (37) extends into the initial rain chamber (9) and passes around the second fixed pulley (36) before being connected and fixed to one end of the second horizontal spring (35).

4. The automatic drainage interception well according to claim 1, characterized in that: The upper end of the longitudinal partition (6) between the overflow chamber (10) and the initial rain chamber (9) extends to be connected and fixed to the inner top wall of the transverse partition (5).

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