A swirling sewage interception type rainwater well and urban rainwater drainage system

Abstract

A swirl sewage interception type rainwater well and an urban rainwater drainage system relate to the field of urban drainage facilities. The swirl sewage interception type rainwater well comprises a well channel, a well cover, a sewage storage tank arranged on one side of the well channel, and an intermediate channel capable of connecting the sewage storage tank and the well channel, wherein the intermediate channel is arranged at an angle. A swirl sewage interception cone and a reciprocating motion mechanism for driving the swirl sewage interception cone to move toward the intermediate channel are arranged in the well channel. A rotating motor is arranged at the upper end of the connecting rod of the swirl sewage interception cone. The cone surface can rotate under the drive of the rotating motor to swirl and intercept sewage from rainwater falling into the well channel. The reciprocating motion mechanism can drive the swirl sewage interception cone to move toward the intermediate channel and tilt the swirl sewage interception cone under the limit of the intermediate channel to discharge the sewage intercepted in the cone into the intermediate channel. The present invention can solve the technical problem of poor drainage of rainwater wells.

Description

Technical Field

[0001] The present invention relates to the field of urban drainage facilities, in particular to a cyclone sewage interception type rainwater well and an urban rainwater drainage system. Background Art

[0002] Drainage is an important foundation for modern urban construction. How to optimize the design and transform and expand the urban drainage system is an important research topic in the construction of modern cities.

[0003] Rainwater wells are used on surface roads to drain rainwater, and the design of rainwater wells is related to the difficulty of the drainage system. At present, the rainwater drainage road inlets of municipal roads are often equipped with grilles to filter solid debris. In order to filter out larger debris and prevent debris from falling into the rainwater well through the grille gaps, resulting in poor subsequent drainage of the rainwater well or the main pipeline connected to the rainwater well, and in severe cases, pipe blockage, the grille gaps are generally smaller. However, smaller grille gaps are easily blocked by mud or leaves during drainage, resulting in poor drainage at the entrance of the rainwater well. The occurrence of the above situation results in rainwater not being able to be drained away in time, resulting in water accumulation on the road surface, which in severe cases even affects the safety of pedestrians and vehicles. Summary of the Invention

[0004] The present invention aims to provide a cyclone sewage interception type rainwater well and an urban rainwater drainage system to solve the technical problem of poor drainage of rainwater wells.

[0005] In order to solve the above technical problems, the specific solution adopted by the present invention is as follows: a cyclone sewage interception type rainwater well, comprising a vertically arranged well channel and a well cover arranged at the entrance of the well channel, a grille is arranged on the well cover, and also comprises a sewage storage tank arranged on one side of the well channel and an intermediate channel capable of connecting the sewage storage tank and the well channel, the intermediate channel is inclined, and the end connected to the well channel is higher than the end connected to the sewage storage tank; a cyclone sewage interception cone and a reciprocating motion mechanism for driving the cyclone sewage interception cone to move toward the intermediate channel are arranged in the well channel, the cyclone sewage interception cone comprises a connecting rod and a The conical surface below the connecting rod is a telescopic rod, and the conical surface is densely covered with multiple water-permeable holes. The conical surface can form a conical cavity with a small diameter section at the bottom and a large diameter section at the top. The diameter of the large diameter section of the conical cavity is smaller than the inner diameter of the well channel; a rotating motor is provided at the upper end of the connecting rod of the swirl sewage intercepting cone, and the conical surface can rotate under the drive of the rotating motor to swirl and intercept the rainwater falling into the well channel. The reciprocating motion mechanism can drive the swirl sewage intercepting cone to move toward the middle channel, and tilt the swirl sewage intercepting cone under the limit of the middle channel to discharge the dirt trapped in the cone into the middle channel.

[0006] As a further optimization of the above technical solution, an installation groove is opened on the side wall of the well channel. The reciprocating motion mechanism includes a transmission chain, a transmission driving sprocket, a transmission driven sprocket and a drive motor. The transmission driving sprocket and the drive motor are both arranged in the installation groove. The transmission driven sprocket is fixed in the middle channel through a mounting frame. The rotating motor of the cyclone sewage intercepting cone is hinged on the transmission chain.

[0007] As a further optimization of the above technical solution, a mounting groove is opened on the side wall of the well channel, and the reciprocating motion mechanism includes a linear screw and a driving motor for driving the linear screw to rotate. One end of the linear screw and the driving motor are both arranged in the mounting groove, and the other end of the linear screw is fixed in the middle channel through a mounting bracket. A mounting seat is provided on the linear screw, and the top of the rotating motor of the swirl sewage intercepting cone is hinged on the mounting seat of the linear screw.

[0008] As a further optimization of the above technical solution, the output shaft of the rotating motor is connected to the upper end of the connecting rod through a coupling, and a mounting connecting rod is provided above the rotating motor, and the mounting connecting rod is hinged to the reciprocating motion mechanism.

[0009] As a further optimization of the above technical solution, a water retaining cap is provided above the rotating motor.

[0010] As a further optimization of the above technical solution, the density of the water-permeable holes in the upper part of the conical surface is greater than the density of the water-permeable holes in the lower part of the conical surface.

[0011] As a further optimization of the above technical solution, the manhole cover is circular, and the diameter of the manhole cover is not larger than the diameter of the large diameter end of the conical cavity. The diameter of the large diameter section of the conical cavity is 1 / 3 to 2 / 3 of the inner diameter of the well channel.

[0012] As a further optimization of the above technical solution, a sewage cleaning port is provided on the sewage storage tank.

[0013] As a further optimization of the above technical solution, a rain sensor is provided on the conical surface, and the rain sensor, the rotating motor and the reciprocating motion mechanism are all controlled by a controller.

[0014] A city drainage system includes a water main and the above-mentioned vortex sewage interception type rainwater well, the well channel of the vortex sewage interception type rainwater well is connected to the water main, and a filter pipe is provided below the sewage storage tank, which is connected to the water main.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a cyclone interception cone in the rainwater well to perform cyclone interception on rainwater entering the well channel. The centrifugal force generated by the rotation of the cyclone interception cone quickly discharges the rainwater flowing into the cyclone interception cone, and retains the solid waste in the rainwater in the conical cavity. The solid waste is then transferred from the conical cavity to the intermediate channel, thereby purifying the rainwater flowing from the well channel to the main delivery pipe to a certain extent, thereby enhancing the drainage effect.

[0016] 2. Since the swirl intercepting cone can collect dirt in rainwater, compared with the existing technology, the grille gap on the manhole cover can be expanded to a certain extent, reducing the chance of the grille gap being blocked and improving the flow of rainwater into the well channel.

[0017] 3. According to the centrifugal force inside the cyclone intercepting cone, the dirt and impurities with high density flow near the bottom of the cone, and the rainwater flows at the top of the cone and is separated out of the device through the water holes on the cone surface. The density of the water holes on the upper part of the cone surface is greater than that on the lower part of the cone surface, which can increase the outflow speed of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of Example 1;

[0019] Figure 2 This is a schematic diagram of the structure of the cyclone intercepting cone moving to the entrance of the middle channel in Example 1;

[0020] Figure 3 This is a schematic structural diagram of the tilted state of the cyclone intercepting cone in Example 1;

[0021] Figure 4 It is a schematic diagram of the specific structure of the cyclone pollution interception cone;

[0022] Figure 5 This is a schematic structural diagram of Example 2;

[0023] Figure markings: 1. Ground, 2. Driving motor, 3. Mounting groove, 4. Transmission active sprocket, 5. Transmission chain, 6. Manhole cover, 7. Manhole channel, 8. Intermediate channel, 9. Mounting frame, 10. Transmission driven sprocket, 11. Sewage storage tank, 12. Filter pipe, 13. Cyclone sewage intercepting cone, 1301, connecting rod, 1302, conical surface, 1303, conical cavity, 14, rotating motor, 15. Water main pipe, 16. Water retaining cap, 17. Mounting seat, 18. Linear screw, 19. Mounting connecting rod. DETAILED DESCRIPTION

[0024] Example 1

[0025] like Figure 1 As shown, the present invention is a vortex sewage interception type rainwater well and an urban rainwater drainage system. Similar to the prior art, the vortex sewage interception type rainwater well includes a vertically arranged well channel 7 and a well cover 6 arranged at the entrance of the well channel 7. The well channel 7 is located below the ground 1, and a grille is provided on the well cover 6.

[0026] Unlike the prior art, the swirl-type sewage interception rainwater well also includes a sewage storage tank 11 located on one side of the well channel 7 and an intermediate channel 8 that connects the sewage storage tank 11 and the well channel 7. The intermediate channel 8 is tilted, with the end connected to the well channel 7 higher than the end connected to the sewage storage tank 11. The end connected to the well channel 7 is the inlet of the intermediate channel 8, and the end connected to the sewage storage tank 11 is the outlet of the intermediate channel 8. A swirl-type sewage interception cone 13 and a reciprocating motion mechanism for driving the swirl-type sewage interception cone 13 toward the intermediate channel 8 are installed in the well channel 7.

[0027] The reciprocating mechanism includes a transmission chain 5, a transmission driving sprocket 4, a transmission driven sprocket 10, and a drive motor 2. The transmission driving sprocket 4 and the transmission driven sprocket 10 are located in the well channel 7 and the intermediate channel 8, respectively. The transmission chain 5, which is mounted on the transmission driving sprocket 4 and the transmission driven sprocket 10, extends from the well channel 7 to the intermediate channel 8. A swirl intercepting cone 13 is connected to the transmission chain 5. The drive motor 2 is used to drive the transmission driving sprocket 4 to rotate, thereby driving the transmission chain 5 to move, and in turn, driving the swirl intercepting cone 13 toward or away from the intermediate channel 8.

[0028] A mounting slot 3 is defined above the sidewall of well passage 7. The slot opens toward the entrance of intermediate passage 8 and is positioned at a height higher than the entrance of intermediate passage 8. The transmission drive sprocket 4 and drive motor 2 are both mounted within the slot 3. The transmission driven sprocket 10 is secured within intermediate passage 8 via a mounting bracket 9, which is constructed from overlapping horizontal and longitudinal beams. The specific construction of the mounting bracket 9 is conventional and will not be further described.

[0029] The transmission driven sprocket 10 is set at a lower height than the transmission driving sprocket 4. The transmission chain 5 is installed on the conveyor belt driving sprocket and the transmission driven sprocket 10, so the transmission chain 5 is set at an angle. Figure 4 As shown), the cyclone pollution intercepting cone 13 is hinged on the transmission chain 5.

[0030] like Figure 1 、 Figure 4As shown, the swirl intercepting cone 13 includes a connecting rod 1301 and a conical surface 1302 disposed below the connecting rod 1301. The conical surface 1302 can enclose a conical cavity 1303 having a small diameter section at the bottom and a large diameter section at the top. The large diameter section of the conical cavity 1303 has a diameter smaller than the inner diameter of the well channel 7. If the large diameter section of the conical cavity 1303 is set too large, the conical surface 1302 will block rainwater from entering the well channel 7. If the large diameter section of the conical cavity 1303 is set too small, the swirl flow and pollution removal effect of the swirl intercepting cone 13 will be weakened. Therefore, the diameter of the large diameter section of the conical cavity 1303 is set to 1 / 3 to 2 / 3 of the inner diameter of the well channel 7. This diameter setting ensures the drainage effect of the well channel 7, prevents the conical surface 1302 from interfering with the water inflow of the well channel 7, and ensures the swirl intercepting effect of the swirl intercepting cone 13 on rainwater. The manhole cover 6 in this embodiment is circular, and the diameter of the manhole cover 6 is smaller than the inner diameter of the well channel 7 .

[0031] A rotary motor 14 is mounted on the upper end of the connecting rod 1301 of the swirl interceptor cone 13. Driven by this motor, the cone surface 1302 rotates to swirl and intercept rainwater entering the well channel 7. The centrifugal force generated by the swirl interceptor cone's rotation rapidly drains the rainwater flowing into it, trapping solid waste within the cone's cavity. This solid waste is then transferred from the cavity to the intermediate channel, resulting in a certain degree of purification of the rainwater flowing from the well channel to the main delivery pipe, enhancing drainage efficiency.

[0032] The reciprocating mechanism drives the cyclone sewage intercepting cone 13 to move toward the middle channel 8, and tilts the cyclone sewage intercepting cone 13 under the limit of the middle channel 8 to discharge the dirt trapped in the cone into the middle channel 8. The connecting rod 1301 is a telescopic rod. Figure 2 、 Figure 3 As shown, when the cyclone sewage intercepting cone 13 moves to the entrance of the middle channel 8, the outer side of the cone surface 1302 abuts against the lower edge of the entrance of the middle channel 8 to prevent the cyclone sewage intercepting cone 13 from continuing to move. At this time, the transmission chain 5 continues to drive the cyclone sewage intercepting cone 13 to move into the middle channel 8, the connecting rod 1301 contracts, and the cyclone sewage intercepting cone 13 tilts to dump the dirt and impurities retained in the cone into the middle channel 8, and flows into the sewage storage tank 11 from the middle channel 8.

[0033] In order to prevent the mounting frame 9 from interfering with the flow process of dirt and impurities from flowing from the middle channel 8 to the sewage storage tank 11 , the mounting frame 9 is fixedly connected to the upper pipe wall or the pipe walls on both sides of the middle channel 8 .

[0034] The output shaft of the rotary motor 14 is connected to the upper end of the connecting rod 1301 via a coupling. A mounting link 19 is provided above the rotary motor 14. The lower end of the mounting link 19 is fixed to the housing of the rotary motor 14, and the upper end of the mounting link 19 is hinged to the transmission chain 5 of the reciprocating motion mechanism. A mounting seat 17 is provided on the transmission chain 5. The mounting link 19 is hinged to the mounting seat 17 in a manner known in the art. The mounting link 19 can be hinged or pivoted by inserting a pin provided on the mounting seat 17 into the pin. It is sufficient to ensure that the mounting link 19 can rotate about the mounting seat 17. When a pin is provided on the mounting seat 17, the length of the pin is perpendicular to the direction of movement of the transmission chain 5. The mounting connecting rod 19 can rotate around the mounting seat 17, so that when the cyclone sewage intercepting cone 13 is limited at the entrance of the intermediate channel 8, the transmission chain 5 can still drive the upper end of the mounting connecting rod 19 to move into the intermediate channel 8. At the same time, due to the contraction of the connecting rod 1301, the cyclone sewage intercepting cone 13 is driven to tilt.

[0035] When in use, the stroke of the transmission chain 5 is controlled to keep the rotating sewage intercepting cone moving in the well pipe. Since the mounting seat 17 on the transmission chain 5 does not need to be moved to the transmission driven sprocket 10 or the transmission driven sprocket 10, the setting of the mounting seat 17 will not interfere with the operation of the reciprocating motion mechanism.

[0036] Conical surface 1302 is densely covered with multiple permeable holes. The density of the permeable holes in the upper portion of conical surface 1302 is greater than that in the lower portion. Due to the centrifugal force within swirl interception cone 13, denser impurities flow near the bottom of the cone, while separated rainwater flows toward the top of the cone and passes through the permeable holes in conical surface 1302, leaving the device. The higher density of the permeable holes in the upper portion of conical surface 1302 than in the lower portion increases the outflow rate of water. Furthermore, most of the swirling rainwater flows out through the upper edge of conical surface 1302.

[0037] The rotating motor 14 used is a commercially available waterproof motor. A water retaining cap 16 is provided above the rotating motor 14. The water retaining cap 16 can not only shield the rotating motor 14 and reduce the impact of rainwater, but also protect the rotating motor 14 to prevent mud, sand, solid particles and other debris contained in the rainwater from directly impacting the rotating motor 14.

[0038] The sewage storage tank 11 is provided with a sewage cleaning port (not shown in the figure), and the staff can regularly clean the sewage in the sewage storage tank 11 to avoid excessive accumulation of sewage in the sewage storage tank 11.

[0039] A rain sensor is provided on the conical surface 1302. The rain sensor, the rotary motor 14 and the reciprocating mechanism are all controlled by a controller. The connection between the controller and the rain sensor, the rotary motor 14 and the reciprocating mechanism is an electrical connection or a signal connection.

[0040] When the present embodiment is in use, the rain sensor collects rainwater falling on the conical surface 1302 and transmits a signal to the controller. The controller controls the rotary motor 14 to start rotating to intercept the rainwater falling into the conical cavity 1303. After the swirl intercepting cone 13 has been running for a period of time, the controller controls the swirl intercepting cone 13 to stop running and starts the reciprocating motion mechanism to move the swirl intercepting cone 13 to the entrance of the middle channel 8. The reciprocating motion mechanism is kept running to dump the dirt and impurities remaining in the swirl intercepting cone 13 into the middle channel 8. After the dirt in the swirl intercepting cone 13 is poured out, the controller controls the reciprocating motion mechanism to drive the swirl intercepting cone 13 to move in a direction opposite to the middle channel 8. After moving to the position of the manhole cover 6 corresponding to the rainwater well, the reciprocating motion mechanism is closed and the swirl intercepting cone 13 is started to rotate again. The reciprocating operation is repeated in this way. When the rain stops, the controller controls the swirl intercepting cone 13 and the reciprocating motion mechanism to stop working.

[0041] When the swirl intercepting cone 13 moves toward the intermediate channel 8 and dumps, the swirl intercepting cone 13 temporarily stops acting on the rainwater in the well channel 7. The temporary working time of the swirl intercepting cone 13 can be shortened by adjusting the transmission speed of the transmission chain 5. Since this process is short, the impact of the swirl intercepting cone 13 suspending its operation on the rainwater treatment effect can be ignored. In addition, a spare swirl intercepting cone 13 can be set in the well channel 7 so that when a swirl intercepting cone 13 moves toward the intermediate channel 8 and dumps, the spare swirl intercepting cone 13 moves to the position of the well channel 7 corresponding to the manhole cover 6 to continue operating. The connection relationship between the spare swirl intercepting cone 13 and the corresponding spare reciprocating motion mechanism, the spare intermediate channel and the spare decontamination tank is the same as that of the present invention and will not be repeated here.

[0042] An urban drainage system includes a water main 15 and the aforementioned vortex-type rainwater well. The well channel 7 of the vortex-type rainwater well is connected to the water main 15. A filter pipe 12 is provided below a sewage tank 11. The floor of the sewage tank 11 is sloped toward the filter pipe 12. Water contained in the sewage in the sewage tank 11 can flow into the filter pipe 12, which is connected to the water main 15. The filter pipe 12 is filled with large particles of sand and gravel to form a filter layer. Dirt entering the sewage tank 11 can filter out some water through the filter channel, and the filtered water is then collected in the water main 15. The provision of the filter channel can reduce the amount of water in the sewage tank 11, facilitating subsequent cleaning of the sewage tank 11.

[0043] Example 2

[0044] like Figure 4 、 Figure 5 As shown, this embodiment has the same main structure as Example 1, differing in that the reciprocating motion mechanism includes a linear screw 18 and a drive motor 2 for driving the linear screw 18. A mounting slot 3 is defined in the sidewall of the well channel 7. One end of the linear screw 18 and the drive motor 2 are both disposed within the mounting slot 3. The other end of the linear screw 18 is secured within the intermediate channel 8 via a mounting bracket 9. A mounting seat 17 is provided on the linear screw 18. The top of the rotating motor 14 of the swirl intercepting cone 13 is hingedly connected to the mounting seat 17 of the linear screw 18. The operating process of the swirl intercepting cone 13 in this embodiment is similar to that of Example 1 and will not be further described here.

Claims

1. A cyclone sewage interception type rainwater well, comprising a vertically arranged well channel (7) and a well cover (6) arranged at the entrance of the well channel (7), wherein a grille is provided on the well cover (6), characterized in that: It also includes a sewage storage tank (11) arranged on one side of the well channel (7) and an intermediate channel (8) capable of connecting the sewage storage tank (11) and the well channel (7), wherein the intermediate channel (8) is arranged obliquely, and the end connected to the well channel (7) is higher than the end connected to the sewage storage tank (11); A cyclone sewage intercepting cone (13) and a reciprocating motion mechanism for driving the cyclone sewage intercepting cone (13) to move toward the middle channel (8) are provided in the well channel (7). The cyclone sewage intercepting cone (13) comprises a connecting rod (1301) and a conical surface (1302) provided below the connecting rod (1301). The connecting rod (1301) is a telescopic rod. The conical surface (1302) is densely covered with a plurality of water-permeable holes. The conical surface (1302) can enclose a conical cavity (1303) having a small diameter section at the bottom and a large diameter section at the top. The diameter of the large diameter section of the conical cavity (1303) is smaller than the inner diameter of the well channel (7). A rotating motor (14) is provided at the upper end of the connecting rod (1301) of the swirl intercepting cone (13). The cone surface (1302) can rotate under the drive of the rotating motor (14) to swirl intercept the rainwater falling into the well channel (7). The reciprocating motion mechanism can drive the swirl intercepting cone (13) to move toward the middle channel (8) and tilt the swirl intercepting cone (13) under the limit of the middle channel (8) to discharge the dirt trapped in the cone into the middle channel (8). A mounting groove (3) is provided on the side wall of the well channel (7); the reciprocating motion mechanism comprises a transmission chain (5), a transmission driving sprocket (4), a transmission driven sprocket (10) and a drive motor (2); the transmission driving sprocket (4) and the drive motor (2) are both arranged in the mounting groove (3); the transmission driven sprocket (10) is fixed in the middle channel (8) through a mounting frame (9); the top of the rotating motor (14) of the cyclone intercepting cone (13) is hinged on the transmission chain (5); or, A mounting groove (3) is provided on the side wall of the well channel (7), and the reciprocating motion mechanism includes a linear screw (18) and a driving motor (2) for driving the linear screw (18) to rotate. One end of the linear screw (18) and the driving motor (2) are both arranged in the mounting groove (3), and the other end of the linear screw (18) is fixed in the middle channel (8) through a mounting frame (9). A mounting seat (17) is provided on the linear screw (18), and the upper portion of the rotating motor (14) of the swirl intercepting cone (13) is hinged on the mounting seat (17) of the linear screw (18); The length direction of the transmission chain (5) or the linear screw (18) is parallel to the length direction of the middle channel (8), and the transmission chain (5) or the linear screw (18) is located in the middle of the middle channel (8) in the height direction.

2. A cyclone sewage interception type rainwater well according to claim 1, characterized in that: The output shaft of the rotary motor (14) is connected to the upper end of the connecting rod (1301) through a coupling. A mounting connecting rod (19) is provided above the rotary motor (14), and the mounting connecting rod (19) is hinged to the reciprocating motion mechanism.

3. A cyclone sewage interception type rainwater well according to claim 1, characterized in that: A water retaining cap (16) is provided above the rotating motor (14).

4. A cyclone sewage interception type rainwater well according to claim 1, characterized in that: The density of the water-permeable holes in the upper portion of the conical surface (1302) is greater than the density of the water-permeable holes in the lower portion of the conical surface (1302).

5. The cyclone sewage interception type rainwater well according to claim 1, characterized in that: The manhole cover (6) is circular, and the diameter of the manhole cover (6) is not greater than the diameter of the large diameter end of the tapered cavity (1303). The diameter of the large diameter section of the tapered cavity (1303) is 1 / 3 to 2 / 3 of the inner diameter of the well channel (7).

6. A cyclone sewage interception type rainwater well according to claim 1, characterized in that: The sewage storage tank (11) is provided with a sewage cleaning port.

7. The cyclone sewage interception type rainwater well according to claim 1, characterized in that: A rain sensor is provided on the conical surface (1302), and the rain sensor, the rotating motor (14) and the reciprocating motion mechanism are all controlled by a controller.

8. An urban drainage system, characterized in that: The invention comprises a water main pipe (15) and a cyclone sewage interception type rainwater well as claimed in claim 1, wherein the well channel (7) of the cyclone sewage interception type rainwater well is connected to the water main pipe (15), and a filter pipe (12) is provided below the sewage storage tank (11), and the filter pipe (12) is connected to the water main pipe (15).

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