A pumping structure and usage method of a drainage system

Abstract

The present invention provides a pumping structure and a usage method for a drainage system, which relates to the field of drainage systems and includes: a drainage ditch and an underground drain pipe; the drainage ditch and the underground drain pipe are laid inside the land, and the drainage ditch is located above the underground drain pipe, and a drainage ditch cover plate is provided on the top of the drainage ditch; a protective box body is provided on the top of the drainage ditch, and a pumping mechanism is arranged inside the protective box body, and a floating pressing mechanism is installed on the left side inside the protective box body. Through the cooperation of the floating pressing mechanism, the controller and the pumping mechanism, the present invention can automatically pump rainwater into the underground drain pipe after the water level of the road surface water accumulation reaches a certain height, so that the road surface water accumulation is drained more timely, and solves the problem that the current pump-type pumping structure cannot automatically perform the pumping work after the water level of the road surface water accumulation reaches a certain height, resulting in untimely road surface drainage.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage systems, and particularly relates to a pumping structure and a usage method of a drainage system. Background Art

[0002] A drainage system refers to an overall combination of facilities such as drainage collection, transportation, water quality treatment, and discharge in a certain way. When the drainage ditch in the drainage system is in use, in order to prevent large objects from falling into the drainage ditch, a drainage ditch cover plate is provided on the upper part of the drainage ditch.

[0003] Although the drainage ditches in the current drainage system can block large objects through the drainage ditch cover plates, during heavy rain, sundries such as fallen leaves are very likely to block the filter holes on the drainage ditch cover plates, and then the water level on the road surface will rise, hindering traffic. Although it is possible to pump the accumulated water on the road surface into the underground drainage pipe through a pumping structure such as a water pump when the accumulated water on the road surface is relatively deep, the current pumping structure of the water pump cannot automatically perform the pumping work after the water level of the accumulated water on the road surface reaches a certain height, resulting in insufficiently timely drainage of the road surface. Summary of the Invention

[0004] In view of this, the present invention provides a pumping structure and a usage method of a drainage system to solve the problem that the current pumping structure of the water pump cannot automatically perform the pumping work after the water level of the accumulated water on the road surface reaches a certain height when pumping the accumulated water on the road surface into the underground drainage pipe, resulting in insufficiently timely drainage of the road surface.

[0005] The present invention provides a pumping structure and a usage method of a drainage system, which specifically include: a drainage ditch and an underground drainage pipe; the drainage ditch and the underground drainage pipe are laid inside the land, and the drainage ditch is located above the underground drainage pipe, and a drainage ditch cover plate is provided on the top of the drainage ditch; a protective box body is provided on the top of the drainage ditch, and a pumping mechanism is provided inside the protective box body. A floating pressing mechanism is installed on the left side inside the protective box body, a waterproof box is provided above the floating pressing mechanism, an anti-blocking part is provided inside the underground drainage pipe on the pumping mechanism, and a clogging cleaning component is provided inside the protective box body on the pumping mechanism; a linkage rod is rotatably connected inside the protective box body, and a waterproof box is installed on the rear side surface inside the protective box body, and a controller is installed inside the waterproof box.

[0006] Furthermore, a sealing plate is installed on the front side of the protective box body, and a rectangular through opening is formed on the left front end surface of the sealing plate.

[0007] Furthermore, the pumping mechanism includes a filter box, a waterproof water pump and a water pipe. The filter box is installed on the left side of the bottom end surface inside the protective box body, and the water outlet of the filter box is connected to the water suction port of the waterproof water pump through a water pipe. The waterproof water pump is installed inside the protective box body, and the water outlet of the waterproof water pump is connected to the water pipe. The other end of the water pipe passes through the underground drainage pipe, and the other end of the water pipe is provided with an anti-blocking part, and a clearing component is provided at the filter screen on the front side of the filter box.

[0008] Furthermore, the motor of the waterproof water pump is a double-shaft motor, and a driving pulley is installed on the right end shaft of the motor of the waterproof water pump.

[0009] Furthermore, the floating and pressing mechanism includes a vertical guide rod, a top plate, a floating block, a pressing plate, a rubber telescopic sleeve and a waterproof press switch. The number of the vertical guide rods is four, and the upper ends of the four vertical guide rods are fixedly connected to the top plate, the four vertical guide rods are fixedly connected to the left side of the bottom end surface inside the protective box body, and the outside of the four vertical guide rods is slidably connected to the floating block; a pressing plate is provided on the upper part of the floating block; a waterproof press switch is installed on the bottom end surface of the top plate, and a rubber telescopic sleeve is provided on the bottom end surface of the top plate outside the waterproof press switch, and the waterproof press switch and the waterproof water pump are electrically connected to the internal controller of the waterproof box.

[0010] Furthermore, the blockage clearing assembly includes a blockage clearing brush, a driving disk and a connecting rod, the left and right ends of the blockage clearing brush are slidably connected to a vertical sliding rod, and the two vertical sliding rods are fixedly connected to the front end surface of the filter box, and the middle part of the front end surface of the blockage clearing brush is rotatably connected to the connecting rod via a rotating shaft; the middle part of the rear end surface of the driving disk is fixedly connected to a rotating shaft, and a first bevel gear is fixedly installed at the rear end of the rotating shaft, the rotating shaft is rotatably connected to the top end surface of the filter box, and the edge of the front end surface of the driving disk is rotatably connected to the other end of the connecting rod via a rotating shaft.

[0011] Furthermore, a second bevel gear is installed on the left end of the linkage rod, and the second bevel gear is meshed with the first bevel gear; a driven pulley is provided on the right end of the linkage rod, and the driven pulley is connected to the driving pulley on the right end rotating shaft of the motor of the waterproof water pump through a belt.

[0012] Furthermore, the anti-blocking part includes a metal ring, a sealing baffle and a magnet. The metal ring is installed at the lower end of the water pipe, and the front end surface of the metal ring is rotatably connected to the sealing baffle through a rotating shaft, and a magnet is provided on the lower side of the sealing baffle.

[0013] Furthermore, when the sealing baffle door is in a closed state, the magnet and the metal ring are magnetically attracted.

[0014] The present invention discloses a usage method of a pumping structure for a drainage system, including the following steps: When encountering heavy rain, first, rainwater enters the inside of the drainage ditch through the filter holes on the drainage ditch cover plate. Then, when the filter holes on the drainage ditch cover plate are blocked by sundries, the water surface of the road surface water will continuously rise. At this time, the road surface water will enter the inside of the protective box body through the rectangular opening on the sealing plate, and then the floating block will drive the pressing plate to move upward under the action of the road surface water. Then, the upper end surface of the pressing plate presses the bottom end surface of the rubber expansion sleeve upward, thereby pressing the button on the waterproof pressing switch. Then, the waterproof water pump is started through the controller inside the waterproof box, so that negative pressure is generated inside the filter box, and then the rainwater entering the filter box is pumped into the water delivery pipe. Then, under the action of water pressure, the sealing door is pushed open, and the rainwater is discharged into the underground drainage pipe. Thus, the operation steps of the usage method of the pumping structure are completed.

[0015] Beneficial effects

[0016] 1. Through the cooperation of the floating pressing mechanism, the controller and the pumping mechanism, when the filter holes on the drainage ditch cover plate are blocked by sundries, the water surface of the road surface water will continuously rise. Then, the floating block drives the pressing plate to move upward under the action of the road surface water. Then, the upper end surface of the pressing plate presses the bottom end surface of the rubber expansion sleeve upward, thereby pressing the button on the waterproof pressing switch. Then, the waterproof water pump is started through the controller inside the waterproof box, so that negative pressure is generated inside the filter box, and then the rainwater entering the filter box is pumped into the water delivery pipe. Then, under the action of water pressure, the sealing door is pushed open, and the rainwater is discharged into the underground drainage pipe. Thus, when the water level of the road surface water reaches a certain height, the rainwater can be automatically pumped into the underground drainage pipe, making the drainage of the road surface water more timely, and thus improving the practicability of the pumping structure in the drainage system.

[0017] 2. Through the cooperation of the double-shaft motor, the linkage rod and the clogging removal component on the waterproof water pump, when the waterproof water pump is operating, through the double-shaft motor on the waterproof water pump, the driving pulley drives the driven pulley, the linkage rod, the second bevel gear, the first bevel gear and the driving disc to rotate through the belt. Then, the upper end of the connecting rod is driven to rotate by the driving disc, and then the lower end of the connecting rod drives the clogging removal brush to move up and down reciprocally, so that the sundries attached to the front side of the filter screen on the filter box can be automatically cleaned, effectively avoiding the phenomenon of blockage of the filter screen holes on the filter box, and thus improving the reliability of the pumping structure during the pumping work.

[0018] 3. With the provision of the anti-blocking part in the present invention, after the pumping mechanism stops operating, the water delivery pipe will no longer transport rainwater. At this time, the sealing shutter will rotate downward and close under its own gravity, and the magnet will magnetically attract the metal ring, so that the water outlet of the water delivery pipe can be effectively shielded and protected, thus effectively avoiding the phenomenon of sundries entering the interior of the water delivery pipe and preventing the water outlet of the water delivery pipe from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the drawings:

[0022] Figure 1 is the overall structural schematic diagram of the embodiment of the present invention.

[0023] Figure 2 is the structural schematic diagram after the underground protection box body and the sealing plate of the embodiment of the present invention are disassembled.

[0024] Figure 3 is the partial cross-sectional structural schematic diagram of the protection box body of the embodiment of the present invention.

[0025] Figure 4 is the embodiment of the present invention Figure 2 partial enlarged structural schematic diagram at position A.

[0026] Figure 5 is the structural schematic diagram of the clogging removal component and the linkage rod of the embodiment of the present invention.

[0027] Figure 6 is the embodiment of the present invention Figure 3 partial enlarged structural schematic diagram at position B.

[0028] Figure 7 is the structural schematic diagram after the floating pressing mechanism of the embodiment of the present invention is disassembled.

[0029] Figure 8 is the partial cross-sectional structural schematic diagram of the top plate and the rubber telescopic sleeve of the embodiment of the present invention.

[0030] LIST OF REFERENCE NUMERALS

[0031] 1, Drainage ditch; 2, Underground drain pipe; 3, Drainage ditch cover plate; 4, Protective box body; 401, Sealing plate; 5, Pumping mechanism; 501, Filter box; 502, Waterproof water pump; 503, Water delivery pipe; 6, Floating pressing mechanism; 601, Vertical guide rod; 602, Top plate; 603, Floating block; 604, Pressing plate; 605, Rubber telescopic sleeve; 606, Waterproof pressing switch; 7, Blockage clearing assembly; 701, Blockage clearing brush; 702, Driving disc; 703, Connecting rod; 8, Linking rod; 9, Waterproof box; 10, Blockage prevention part; 1001, Metal ring; 1002, Sealing shutter; 1003, Magnet. Detailed implementation manners

[0032] In order to make the objectives, solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the ordinary meanings in the art. The same reference numerals in the drawings represent the same components.

[0033] Embodiment: Please refer to Figures 1 to 8 as shown in

[0034] The present invention provides a pumping structure and a usage method for a drainage system, including a drainage ditch 1 and an underground drain pipe 2; the drainage ditch 1 and the underground drain pipe 2 are laid inside the land, and the drainage ditch 1 is located above the underground drain pipe 2, and a drainage ditch cover plate 3 is provided on the top of the drainage ditch 1; a protective box body 4 is provided on the top of the drainage ditch 1, and a pumping mechanism 5 is provided inside the protective box body 4. A floating pressing mechanism 6 is installed on the left side inside the protective box body 4, a waterproof box 9 is provided above the floating pressing mechanism 6, a blockage prevention part 10 is provided inside the underground drain pipe 2 on the pumping mechanism 5, and a blockage clearing assembly 7 is provided inside the protective box body 4 on the pumping mechanism 5; a linking rod 8 is rotatably connected inside the protective box body 4, and a waterproof box 9 is installed on the rear side inside the protective box body 4, and a controller is installed inside the waterproof box 9; a sealing plate 401 is installed on the front side of the protective box body 4, and a rectangular through opening is provided on the left front end surface of the sealing plate 401 to facilitate the entry of rainwater, and through the setting of the protective box body 4, effective protection can be provided for the pumping mechanism 5, the floating pressing mechanism 6, the blockage clearing assembly 7, the linking rod 8 and the waterproof box 9.

[0035] Such as Figure 1 , Figure 2 and Figure 5As shown in the figure, the water pumping mechanism 5 includes a filter box 501, a waterproof water pump 502, and a water delivery pipe 503. The filter box 501 is installed on the left side of the inner bottom end surface of the protective box body 4, and the water outlet of the filter box 501 is connected to the water suction port of the waterproof water pump 502 through a water pipe. The waterproof water pump 502 is installed inside the protective box body 4, and the water outlet of the waterproof water pump 502 is connected with a water delivery pipe 503. The other end of the water delivery pipe 503 penetrates through the underground drain pipe 2, and a clogging prevention part 10 is provided at the other end of the water delivery pipe 503. A clogging clearing component 7 is provided at the front side filter net of the filter box 501; the motor of the waterproof water pump 502 is a double-shaft motor, and a driving pulley is installed on the right end rotating shaft of the motor of the waterproof water pump 502. Through the setting of the water pumping mechanism 5, it is used to pump the road surface water into the underground drain pipe 2.

[0036] As Figure 3 , Figure 6 and Figure 7 shown in the figure, the floating pressing mechanism 6 includes a vertical guide rod 601, a top plate 602, a floating block 603, a pressing plate 604, a rubber telescopic sleeve 605, and a waterproof pressing switch 606. The number of vertical guide rods 601 is four, and the upper ends of the four vertical guide rods 601 are fixedly connected with a top plate 602. The four vertical guide rods 601 are fixedly connected to the left side of the inner bottom end surface of the protective box body 4, and a floating block 603 is slidably connected to the outside of the four vertical guide rods 601; a pressing plate 604 is provided on the upper part of the floating block 603; a waterproof pressing switch 606 is installed on the bottom end surface of the top plate 602, and a rubber telescopic sleeve 605 is provided outside the waterproof pressing switch 606 on the bottom end surface of the top plate 602. The waterproof pressing switch 606 and the waterproof water pump 502 are both electrically connected to the controller inside the waterproof box 9. Through the setting of the floating pressing mechanism 6, it is used to detect the height of the road surface water level in real time.

[0037] As Figure 3 and Figure 5 shown in the figure, the clogging clearing component 7 includes a clogging clearing brush 701, a driving disk 702, and a connecting rod 703. A vertical sliding rod is slidably connected to both the left and right ends of the clogging clearing brush 701, and the two vertical sliding rods are fixedly connected to the front end surface of the filter box 501. The middle part of the front end surface of the clogging clearing brush 701 is rotatably connected with a connecting rod 703 through a rotating shaft; a rotating shaft is fixedly connected to the middle part of the rear end surface of the driving disk 702, and a first bevel gear is fixedly installed at the rear end of the rotating shaft. The rotating shaft is rotatably connected to the top end surface of the filter box 501. The edge of the front end surface of the driving disk 702 is rotatably connected with the other end of the connecting rod 703 through a rotating shaft. Through the setting of the clogging clearing component 7, it can automatically clean the debris attached to the front side of the filter net on the filter box 501 while the waterproof water pump 502 is operating.

[0038] As Figure 5As shown, a second bevel gear is installed at the left end of the linkage rod 8, and the second bevel gear is meshed with the first bevel gear; a driven pulley is provided at the right end of the linkage rod 8, and the driven pulley is connected to the driving pulley on the right end shaft of the motor of the waterproof water pump 502 through a belt. Through the setting of the linkage rod 8, the clearing component 7 can be operated without the need for an additional motor, thereby saving more energy.

[0039] like Figure 2 and Figure 4 As shown, the anti-blocking part 10 includes a metal ring 1001, a sealing baffle door 1002 and a magnet 1003. The metal ring 1001 is installed at the lower end of the water pipe 503, and the front end surface of the metal ring 1001 is rotatably connected to the sealing baffle door 1002 through a rotating shaft, and a magnet 1003 is provided on the lower side of the sealing baffle door 1002; when the sealing baffle door 1002 is in a closed state, the magnet 1003 is magnetically attracted to the metal ring 1001, so that the water outlet of the water pipe 503 can be effectively protected when no drainage operation is performed, thereby avoiding blockage of the water outlet of the water pipe 503.

[0040] The present invention discloses a method for using a pumping structure of a drainage system, comprising the following steps: when encountering heavy rain weather, first, rainwater enters the interior of a drainage ditch 1 through the filtering holes on a drainage ditch cover plate 3, and then when the filtering holes on the drainage ditch cover plate 3 are blocked by debris, the surface of the road surface water will continue to rise; at this time, the road surface water will enter the interior of a protective box body 4 through a rectangular opening on a sealing plate 401, and then a floating block 603 moves upward with a pressing plate 604 under the action of the road surface water; then, the bottom end surface of a rubber telescopic sleeve 605 is pressed upward by the upper end surface of the pressing plate 604, thereby pressing a button on a waterproof pressing switch 606; then, a waterproof water pump 502 is started by a controller inside a waterproof box 9, so that negative pressure is generated inside a filter box 501, and then the rainwater entering the interior of the filter box 501 is pumped into a water delivery pipe 503, and then the sealing baffle door 1002 is pushed open under the action of water pressure to discharge the rainwater into an underground drainage pipe 2, and the operation steps of the method for using the pumping structure are completed.

[0041] Specific usage method and function of this embodiment: In the present invention, when encountering heavy rain, rainwater enters the inside of the drainage ditch 1 through the filter holes on the drainage ditch cover plate 3. Then, when the filter holes on the drainage ditch cover plate 3 are blocked by sundries, the water level on the road surface will continue to rise. At this time, the water on the road surface will enter the protective box body 4 through the rectangular opening on the sealing plate 401. Then, the floating block 603 drives the pressing plate 604 to move upward under the action of the water on the road surface. Then, the bottom end surface of the rubber expansion sleeve 605 is pressed upward by the upper end surface of the pressing plate 604, so as to press the button on the waterproof pressing switch 606. Then, the waterproof water pump 502 is started by the controller inside the waterproof box 9, so that a negative pressure is generated inside the filter box 501. Then, the rainwater entering the filter box 501 is pumped into the water delivery pipe 503. Then, under the action of water pressure, the sealing shutter 1002 is pushed open, and the rainwater is discharged into the underground drainage pipe 2. Thus, when the water level on the road surface reaches a certain height, the rainwater can be automatically pumped into the underground drainage pipe 2, making the drainage of the water on the road surface more timely, and thus improving the practicability of the pumping structure in the drainage system;

[0042] While the waterproof water pump 502 is operating, through the double-shaft motor on the waterproof water pump 502, the driving pulley drives the driven pulley, the linkage rod 8, the second bevel gear, the first bevel gear and the driving disc 702 to rotate through the belt. Then, the upper end of the connecting rod 703 is driven to rotate by the driving disc 702. Then, the lower end of the connecting rod 703 drives the cleaning brush 701 to move up and down reciprocally, so as to automatically clean the sundries attached to the front side of the filter net on the filter box 501, effectively avoiding the phenomenon of blockage of the filter net holes on the filter box 501, and thus improving the reliability of this pumping structure during the pumping operation;

[0043] When the water on the road surface is discharged into the underground drainage pipe 2, the water level on the road surface will continue to drop, so that the floating block 603 drives the top plate 602 to move downward, so that the button on the waterproof pressing switch 606 loses the pressing effect. Then, the waterproof water pump 502 is turned off by the controller inside the waterproof box 9;

[0044] After the pumping mechanism 5 stops operating, the water delivery pipe 503 will no longer transport rainwater. At this time, the sealing shutter 1002 will rotate downward and close under its own gravity, and the magnet 1003 will be magnetically attracted to the metal ring 1001, so that the outlet of the water delivery pipe 503 can be effectively shielded and protected, effectively avoiding the phenomenon of sundries entering the water delivery pipe 503 and preventing blockage of the outlet of the water delivery pipe 503.

[0045] The above are only exemplary embodiments of the present invention, rather than used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A pumping structure of a drainage system, characterized in that, Including: A drainage ditch (1) and an underground drain pipe (2); the drainage ditch (1) and the underground drain pipe (2) are laid inside the land, and the drainage ditch (1) is located above the underground drain pipe (2), and a drainage ditch cover plate (3) is provided on the top of the drainage ditch (1); a protective box body (4) is provided on the top of the drainage ditch (1), and a pumping mechanism (5) is provided inside the protective box body (4), a floating pressing mechanism (6) is installed on the left side inside the protective box body (4), a waterproof box (9) is provided on the upper part of the floating pressing mechanism (6), an anti-blocking part (10) is provided inside the underground drain pipe (2) on the pumping mechanism (5), and a clogging cleaning component (7) is provided inside the protective box body (4) on the pumping mechanism (5); a linkage rod (8) is rotatably connected inside the protective box body (4), a waterproof box (9) is installed on the rear side surface inside the protective box body (4), and a controller is installed inside the waterproof box (9); The pumping mechanism (5) includes a filter box (501), a waterproof water pump (502) and a water delivery pipe (503). The filter box (501) is installed on the left side of the inner bottom end surface of the protective box body (4), and the water outlet of the filter box (501) is connected to the water suction port of the waterproof water pump (502) through a water pipe. The waterproof water pump (502) is installed inside the protective box body (4), and the water outlet of the waterproof water pump (502) is connected to a water delivery pipe (503). The other end of the water delivery pipe (503) penetrates through the underground drain pipe (2), and an anti-blocking part (10) is provided at the other end of the water delivery pipe (503). A clogging cleaning component (7) is provided at the front side filter screen of the filter box (501); The floating pressing mechanism (6) includes a vertical guide rod (601), a top plate (602), a floating block (603), a pressing plate (604), a rubber telescopic sleeve (605) and a waterproof pressing switch (606). The number of the vertical guide rods (601) is four, and the upper ends of the four vertical guide rods (601) are fixedly connected to the top plate (602). The four vertical guide rods (601) are fixedly connected to the left side of the inner bottom end surface of the protective box body (4), and a floating block (603) is slidably connected to the outside of the four vertical guide rods (601); a pressing plate (604) is provided on the upper part of the floating block (603); a waterproof pressing switch (606) is installed on the bottom end surface of the top plate (602), and a rubber telescopic sleeve (605) is provided outside the waterproof pressing switch (606) on the bottom end surface of the top plate (602). The waterproof pressing switch (606) and the waterproof water pump (502) are both electrically connected to the controller inside the waterproof box (9); The blockage clearing assembly (7) comprises a blockage clearing brush (701), a driving disc (702) and a connecting rod (703); the left and right ends of the blockage clearing brush (701) are slidably connected to a vertical sliding rod, and the two vertical sliding rods are fixedly connected to the front end surface of the filter box (501); the middle of the front end surface of the blockage clearing brush (701) is rotatably connected to the connecting rod (703) via a rotating shaft; the middle of the rear end surface of the driving disc (702) is fixedly connected to a rotating shaft, and a first bevel gear is fixedly installed at the rear end of the rotating shaft, the rotating shaft is rotatably connected to the top end surface of the filter box (501), and the edge of the front end surface of the driving disc (702) is rotatably connected to the other end of the connecting rod (703) via a rotating shaft.

2. The pumping structure of a drainage system according to claim 1, characterized in that: A sealing plate (401) is installed on the front side of the protection box body (4), and a rectangular opening is opened on the left side of the front end surface of the sealing plate (401).

3. The pumping structure of a drainage system according to claim 1, characterized in that: The motor of the waterproof water pump (502) is a double-shaft motor, and a driving pulley is installed on the right end of the rotating shaft of the motor of the waterproof water pump (502).

4. The pumping structure of a drainage system according to claim 1, characterized in that: A second bevel gear is mounted on the left end of the linkage rod (8), and the second bevel gear meshes with the first bevel gear; a driven pulley is disposed on the right end of the linkage rod (8), and the driven pulley is connected to the driving pulley on the right end shaft of the motor of the waterproof water pump (502) through a belt.

5. The pumping structure of a drainage system according to claim 1, characterized in that: The anti-blocking portion (10) comprises a metal ring (1001), a sealing baffle door (1002) and a magnet (1003); the metal ring (1001) is mounted on the lower end of the water pipe (503); the front end surface of the metal ring (1001) is rotatably connected to the sealing baffle door (1002) via a rotating shaft; and the magnet (1003) is provided on the lower side of the sealing baffle door (1002).

6. The pumping structure of a drainage system according to claim 5, characterized in that: When the sealing baffle door (1002) is in a closed state, the magnet (1003) and the metal ring (1001) are magnetically attracted.

7. The usage method of a pumping structure of a drainage system according to any one of claims 1-6, characterized in that: The following steps are involved: 1) When encountering heavy rain, firstly, rainwater enters the drainage ditch (1) through the filtering holes on the drainage ditch cover (3), and then when the filtering holes on the drainage ditch cover (3) are blocked by debris, the surface water on the road will continue to rise; 2) At this time, the accumulated water on the road surface will enter the interior of the protective box body (4) through the rectangular opening on the sealing plate (401), and then the floating block (603) will move upward with the pressing plate (604) under the action of the accumulated water on the road surface; 3) Then, the bottom end surface of the rubber expansion sleeve (605) is pressed upward by the upper end surface of the pressing plate (604), thereby pressing the button on the waterproof push switch (606); 4) Then, the waterproof water pump (502) is started through the controller inside the waterproof box (9), so that negative pressure is generated inside the filter box (501), and then the rainwater entering the filter box (501) is pumped into the water pipe (503), and then the sealing baffle door (1002) is pushed open under the action of water pressure to discharge the rainwater into the underground drainage pipe (2), thereby completing the operation steps of the method for using the pumping structure.

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