CN220080255U

CN220080255U - Rainwater pump station

Info

Publication number: CN220080255U
Application number: CN202321551663.3U
Authority: CN
Inventors: 马荣; 成家乐; 方星; 刘岳峰; 任冬林; 任庆丽; 朱婷婷; 贺亚琴; 沈智峰; 郜思楠
Original assignee: Shanxi Mechanization Construction Group Co Ltd
Current assignee: Shanxi Mechanization Construction Group Co Ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-11-24
Anticipated expiration: 2033-06-16

Abstract

The utility model relates to a rainwater pump station, and relates to the technical field of flood prevention auxiliary devices, which comprises a base, wherein a gravity flow mechanism and a forced drainage mechanism are arranged on the base, the gravity flow mechanism is communicated with the forced drainage mechanism, the forced drainage mechanism and the gravity flow mechanism are electrically connected with an electric cabinet, the gravity flow mechanism and the forced drainage mechanism are communicated with a gravity flow drainage ditch and an inner drainage pipe, and protection mechanisms are arranged on the gravity flow mechanism and the forced drainage mechanism. Wherein, the forced drainage mechanism is used for actively draining water. The utility model has the effect of solving the problems of excessive performance and energy waste of the rainwater pump station in the dry season in regions with extremely large difference of precipitation amount between the dry season and the rainy season.

Description

Rainwater pump station

Technical Field

The utility model relates to the technical field of flood prevention auxiliary devices, in particular to a rainwater pump station.

Background

The rainwater pump station is an auxiliary device for removing water accumulation in urban pipelines or low-lying areas and preventing waterlogging, and is widely used in the fields of flood prevention, water conservancy and the like.

When infrastructure construction is carried out in regions with extremely large difference between the precipitation in some dry seasons and the precipitation in the rainy seasons, a rainwater pump station is required to be constructed to prevent waterlogging. When the water is in dry season, the regional precipitation is too small, so that the performance of the rainwater pump station is excessive, and the great energy waste is caused.

Aiming at the related technology, the existing rainwater pump station with the region with the extremely large difference between the precipitation amount in the dry season and the precipitation amount in the rainy season has the problems of excessive performance and energy waste in the dry season.

Disclosure of Invention

The utility model provides a rainwater pump station, which aims to solve the problems that a rainwater pump station in a region with a great difference between the precipitation amount of the dry season and the precipitation amount of the rainwater season is excessive and energy is wasted.

The utility model provides a rainwater pump station, which adopts the following technical scheme:

the rainwater pump station comprises a base, wherein a gravity flow mechanism and a forced drainage mechanism are arranged on the base, the gravity flow mechanism is communicated with the forced drainage mechanism, the forced drainage mechanism and the gravity flow mechanism are electrically connected with an electric cabinet, and the gravity flow mechanism and the forced drainage mechanism are communicated with a gravity flow drainage ditch and an inner drainage pipe; the gravity flow mechanism and the forced drainage mechanism are both provided with protection mechanisms;

the gravity flow mechanism comprises:

the self-flow reservoir is arranged on the base and is communicated with the inner drain pipe;

the first electric plug board valve is arranged at the communication part of the self-flow reservoir and the inner drain pipe and is electrically connected with the electric cabinet;

the first drain pipe is communicated with the self-flow reservoir at one end;

the self-flow absorption tank is communicated with one end of the first drain pipe away from the self-flow reservoir, and one end of the self-flow absorption tank Chi Yuan away from the first drain pipe is communicated with the self-flow drain ditch;

wherein, the forced drainage mechanism is used for actively draining water.

By adopting the technical scheme, the self-flow mechanism of the rainwater pump station operates in dry seasons, and precipitation flows into the self-flow mechanism through the inner drain pipe and then flows into the self-flow drain ditch through the self-flow mechanism to be discharged. When the rainy season is entered and the precipitation amount is increased, the electric cabinet controls the self-flow mechanism to be closed, the forced drainage mechanism is started, the precipitation flows into the forced drainage mechanism through the inner drain pipe, and then the forced drainage mechanism discharges the precipitation to the self-flow drainage ditch. According to different precipitation amounts, different mechanisms are selected to operate, and the problems that a rainwater pump station with a region with a great difference between precipitation amounts in dry seasons and precipitation amounts in rainy seasons is excessive in performance in the dry seasons and energy is wasted are solved.

Optionally, the forced-ventilated mechanism includes:

the storage adjusting pool is arranged on the base and is communicated with the inner drain pipe;

the baffle plate is covered and fixedly arranged at the top of the storage tank;

the water collecting pit is formed at the bottom of the storage adjusting water tank;

the submersible axial flow pump is fixedly arranged on the partition plate, the water pumping port of the submersible axial flow pump is communicated with the storage pool, and the submersible axial flow pump is electrically connected with the electric cabinet;

one end of the second drain pipe is communicated with the water outlet of the submersible axial flow pump;

the submersible pump is fixedly arranged on the bottom wall of the water collecting pit, and the water outlet of the submersible pump is communicated with the second drain pipe;

the forced drainage stilling pool is communicated with one end, far away from the submersible axial flow pump, of the second drain pipe, and one end, far away from the second drain pipe, of the forced drainage stilling pool Chi Yuan is communicated with the self-flow drain ditch;

the second electric plug board valve is arranged at the communication part of the storage tank and the inner drain pipe and is electrically connected with the electric cabinet.

Through adopting above-mentioned technical scheme, when rainy season, the precipitation flows through interior drain pipe and flows to the regulation pond, under the effect of dive axial-flow pump, carries the precipitation to the second drain pipe fast, and the precipitation enters into the forced drainage stilling pool immediately, then flows into the drain ditch that flows automatically. The submerged axial flow pump can rapidly convey the precipitation flowing into the storage adjusting tank to the self-flow drainage ditch, thereby completing rapid precipitation removal and avoiding waterlogging.

Optionally, a plurality of first ultrasonic wave liquid level devices are fixedly installed on the side wall of the storage adjusting pond, a plurality of first ultrasonic wave liquid level devices are vertically arranged, and a plurality of first ultrasonic wave liquid level devices are electrically connected with the electric cabinet.

Through adopting above-mentioned technical scheme, first ultrasonic wave liquid level device cooperation electric cabinet operation for a rainwater pump station can be according to the quantity of precipitation come the selective start dive axial-flow pump, neither can cause the drainage not enough to produce the waterlogging, can not make the performance of dive axial-flow pump excessive again, causes the waste of energy.

Optionally, the protection mechanism includes a grille, the grille is fixedly installed at one end of the inner drain pipe, which is close to the second electric plugboard valve.

Through adopting above-mentioned technical scheme, the impurity filtration in the precipitation that the grid can flow into the regulation pond prevents that a large amount of impurity in regulation pond bottom from piling up, influences the normal operating of dive axial-flow pump and immersible pump.

Optionally, the protection mechanism further comprises a force dissipation step, and the force dissipation step is fixedly installed on the bottom wall of the water collection pit.

Through adopting above-mentioned technical scheme, the step of dissolving down can carry out the processing of dissolving down to the precipitation of flow regulation cistern, avoids the regulation pond inner wall to receive direct impact to take place to destroy, has prolonged the life of a rainwater pump station.

Optionally, the protection mechanism further includes a backflow prevention assembly, the backflow prevention assembly includes:

the second ultrasonic liquid level device is fixedly arranged at one end, close to the gravity drainage ditch, of the gravity absorption tank and is electrically connected with the electric cabinet;

the electric butterfly valve is fixedly arranged and communicated with one end, close to the self-flowing reservoir, of the second drain pipe, and is electrically connected with the electric cabinet.

Through adopting above-mentioned technical scheme, when the water level in the escape canal that flows automatically is higher than the stilling pool that flows automatically, the second ultrasonic wave liquid level ware can give the electric cabinet with signal feedback, and the electric cabinet in time closes electric butterfly valve, avoids rivers to flow backward, causes the waterlogging.

Optionally, the protection mechanism further comprises two groups of splayed walls, wherein one group of splayed walls is fixedly installed at the position where the self-flow drainage ditch is communicated with the self-flow stilling pool, and the other group of splayed walls is fixedly installed at the position where the self-flow drainage ditch is communicated with the forced drainage stilling pool.

Through adopting above-mentioned technical scheme, when the precipitation flows into the drainage ditch that flows automatically, the cross section grow of precipitation has been reduced to the impact of drainage ditch that flows automatically to the existence of splayed wall for the drainage ditch that flows automatically avoids damaging, has prolonged life.

Optionally, the protection mechanism further includes two sets of flaps, one of which is fixedly mounted at one end of the first drain pipe near the self-flow drain pipe, and the other of which is fixedly mounted at one end of the second drain pipe near the self-flow drain ditch.

Through adopting above-mentioned technical scheme, clapping the door and can preventing effectively that silt from piling up at first drain pipe and second drain pipe mouth, avoided piling up because of silt and make the impaired condition of a rainwater pump station drainage function.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. in dry season, a rainwater pump station can discharge precipitation by only operating the self-flowing mechanism; in the rainy season, the water flow pump station can control the quantity of the submersible axial flow pumps matched with the precipitation quantity to discharge precipitation, so that the situation of excessive performance of the submersible axial flow pumps is avoided, and the problems of excessive performance and energy waste of the rainwater pump station in the region with extremely large difference between the precipitation quantity in the dry season and the precipitation quantity in the rainy season are solved;

2. the anti-backflow assembly can timely monitor the water level change of the self-flow drainage ditch, and once the second ultrasonic liquid level device senses that the water level of the self-flow drainage ditch is higher than that of the self-flow stilling pool, signals are transmitted to the electric control box, and the electric control box closes the electric butterfly valve, so that the phenomenon that the self-flow drainage ditch flows backwards and causes waterlogging is avoided;

3. the precipitation is subjected to the power dissipation treatment at a plurality of positions, so that the impact of precipitation on each part of the rainwater pump station is avoided, and the service life of the rainwater pump station is prolonged.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a gravity flow mechanism according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a forced-induction mechanism according to an embodiment of the present utility model;

fig. 4 is a cross-sectional view of an embodiment of the present utility model.

Reference numerals illustrate:

1. a base; 2. a gravity flow mechanism; 21. a gravity flow reservoir; 22. a first drain pipe; 23. a self-flowing stilling pool; 24. a first electrically actuated gate valve; 3. a forced drainage mechanism; 31. a regulating reservoir; 32. a partition plate; 33. a water collecting pit; 34. submersible axial flow pump; 35. submersible pump; 36. a second drain pipe; 37. a forced drainage stilling pool; 38. the second electric plugboard valve; 4. an electric control box; 5. an inner drain pipe; 6. a gravity drainage ditch; 71. a grille; 72. a force dissipating step; 73. an anti-backflow assembly; 731. a second ultrasonic level gauge; 732. an electric butterfly valve; 74. splayed walls; 75. a flap valve; 8. a first ultrasonic level gauge.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses a rainwater pump station.

Referring to fig. 1, the rainwater pump station comprises a base 1, wherein a forced drainage mechanism 3, a gravity flow mechanism 2 and an electric cabinet 4 are arranged on the base 1. The forced drainage mechanism 3 is communicated with the self-flow mechanism 2, the forced drainage mechanism 3 and the self-flow mechanism 2 are electrically connected with the electric cabinet 4, the forced drainage mechanism 3 and the self-flow mechanism 2 are communicated with the self-flow drainage ditch 6 and the inner drainage pipe 5, and the forced drainage mechanism 3 and the self-flow mechanism 2 are provided with protection mechanisms.

When a region where a rainwater pump station is installed is in a dry season, the rainwater pump station gravity flow mechanism 2 operates in the dry season, and precipitation flows into the gravity flow mechanism 2 through the inner drain pipe 5 and then flows into the gravity flow drain ditch 6 through the gravity flow mechanism 2 to be discharged. When entering rainy season and the precipitation amount is increased, the electric cabinet 4 controls the self-flow mechanism 2 to be closed, the forced drainage mechanism 3 is started, the precipitation flows into the forced drainage mechanism 3 through the inner drain pipe 5, and then the forced drainage mechanism 3 rapidly discharges the precipitation to the self-flow drainage ditch 6. The forced drainage mechanism 3 is in a closed state during the dry season, so that the situation of excessive performance is avoided, and the problems of excessive performance and energy waste of a rainwater pump station in the dry season in a region with extremely large difference between the precipitation amount of the dry season and the precipitation amount of the rainwater are solved.

Referring to fig. 2, the self-flowing mechanism 2 includes a self-flowing water reservoir 21, the self-flowing water reservoir 21 is provided on the base 1, the self-flowing water reservoir 21 is communicated with the inner drain pipe 5, a first electric plug board valve 24 is installed at one end of the self-flowing water reservoir 21 close to the inner drain pipe 5, when the first electric plug board valve 24 is closed, a water inlet of the self-flowing water reservoir 21 can be completely closed, and the first electric plug board valve 24 is electrically connected with the electric cabinet 4. The one end fixed mounting that the cistern 21 that flows automatically kept away from interior drain pipe 5 and the one end that has first drain pipe 22 of intercommunication, the other end installation of first drain pipe 22 and the intercommunication have the gravity relief pool 23, and gravity relief pool 23 is seted up on base 1, and the one end that the gravity relief pool 23 kept away from first drain pipe 22 communicates with gravity escape canal 6, and the cross-sectional area of gravity relief pool 23 is greater than the cross-sectional area of first drain pipe 22.

In dry season, the precipitation flows into the inner drain pipe 5, then flows into the self-flow reservoir 21 through the inner drain pipe 5, then flows into the self-flow absorption basin 23 through the first drain pipe 22, and flows into the self-flow drainage ditch 6 after the flow rate of the precipitation is reduced through the self-flow absorption basin 23, so that the precipitation is discharged. The gravity flow mechanism 2 independently operates to finish the drainage work in dry seasons, so that the energy consumption of the rainwater pump station is reduced.

Referring to fig. 3 and 4, the forced drainage mechanism 3 includes a storage tank 31, the storage tank 31 is provided on the base 1, a partition plate 32 is provided on the top of the storage tank 31 in a covering manner and is fixedly installed, a submersible axial flow pump 34 is fixedly installed on the partition plate 32, a water pumping port of the submersible axial flow pump 34 is communicated with the storage tank 31, and the submersible axial flow pump 34 is electrically connected with the electric cabinet 4. The water outlet of the submerged axial flow pump 34 is communicated with a second drain pipe 36, one end of the second drain pipe 36 far away from the regulation water tank 31 is communicated with a forced drainage stilling pool 37, the forced drainage stilling pool 37 is arranged on the base 1, and one end of the forced drainage stilling pool 37 far away from the second drain pipe 36 is communicated with the self-flow drainage ditch 6.

Referring to fig. 3 and 4, a second electric plug board valve 38 is fixedly installed at one end of the storage tank 31, which is close to the inner drain pipe 5, the second electric plug board valve 38 is electrically connected with the electric cabinet 4, and after the second electric plug board valve 38 is closed, the water inlet of the storage tank 31 can be completely plugged.

Referring to fig. 3 and 4, a sump pit 33 is formed in the bottom wall of the storage tank 31, the bottom wall of the storage tank 31 surrounding the sump pit 33 is sloped with the sump pit 33 as a slope bottom, a submersible pump 35 is fixedly installed on the bottom wall of the sump pit 33, the discharge port of the submersible pump 35 is communicated with a second drain pipe 36, and the submersible pump 35 is electrically connected with the electric cabinet 4.

When the rainy season comes, the electric cabinet 4 controls the first electric plugboard valve 24 to be closed, controls the second electric plugboard valve 38 to be opened, and the precipitation flows into the regulating reservoir 31 through the inner drain pipe 5, and under the operation of the submerged axial flow pump 34, the precipitation in the regulating reservoir 31 flows through the second drain pipe 36 to enter the forced drainage stilling pool 37, and then is drained into the self-flow drain ditch 6, so that the rapid drainage of the precipitation is completed.

Referring to fig. 4, the protection mechanism includes a grill 71, and the grill 71 is fixedly mounted to the end of the inner drain pipe 5 adjacent to the second electrically operated gate valve 38.

The grill 71 can filter impurities in the precipitation flowing into the storage tank 31.

Referring to fig. 3, the protection mechanism further includes a dissipating step 72, the dissipating step 72 is fixedly mounted on the bottom wall of the storage tank 31, the dissipating step 72 is in a right angle shape, two sides of the dissipating step 72 and the side wall of the storage tank 31 form a rectangle, and the submerged axial flow pump 34 and the sump 33 are located in the rectangle.

The relief step 72 can relieve the precipitation flowing into the reservoir 31, preventing the precipitation from striking the submersible axial flow pump 34 and the bottom wall of the reservoir 31.

Referring to fig. 2, the protection mechanism further includes a backflow prevention assembly 73, and the backflow prevention assembly 73 includes a second ultrasonic level gauge 731 and an electric butterfly valve 732. The second ultrasonic liquid level device 731 is fixedly arranged at one end of the gravity flow absorption tank 23 far away from the first drain pipe 22; the electric butterfly valve 732 is fixedly arranged at one end of the gravity flow reservoir 21 close to the first drain pipe 22; the second ultrasonic liquid level device 731 and the electric butterfly valve 732 are electrically connected with the electric cabinet 4.

When the water in the self-flow drainage ditch 6 is higher than the self-flow stilling pool 23, the second ultrasonic liquid level device 731 transmits a signal to the electric control box 4, and the electric control box 4 controls the electric butterfly valve 732 to be closed, so that water in the self-flow drainage ditch 6 is prevented from flowing backwards and entering the self-flow water storage pool 21.

Referring to fig. 4, the protection mechanism further includes two sets of splayed walls 74, wherein one set of splayed walls 74 is fixedly installed at one end of the gravity relief pool 23 close to the gravity drainage ditch 6, the other set of splayed walls 74 is fixedly installed at one end of the forced drainage relief pool 37 close to the gravity drainage ditch 6, and the splayed walls 74 are flared towards the gravity drainage ditch 6.

The splayed wall 74 increases the cross section of precipitation flowing into the gravity drain 6 and reduces the impact of precipitation on the gravity drain 6.

Referring to fig. 2 and 3, the protection mechanism further includes two sets of flaps 75, wherein one set of flaps 75 is fixedly mounted at an end of the first drain pipe 22 remote from the gravity relief pool 23, and the other set of flaps 75 is fixedly mounted at an end of the second drain pipe 36 remote from the forced drainage relief pool 37.

The flapper 75 is used to prevent sludge from clogging the first drain pipe 22 and the second drain pipe 36.

Referring to fig. 4, three first ultrasonic level devices 8 are fixedly installed at the side wall of the storage tank 31, and the three first ultrasonic level devices 8 are vertically arranged.

The three first ultrasonic liquid level devices 8 monitor the water level in the regulating reservoir 31, and the electric cabinet 4 can start the submersible axial flow pumps 34 with different numbers according to different water levels in the regulating reservoir 31, so that the performance of the submersible axial flow pumps 34 can be fully exerted, and the performance surplus is avoided.

The implementation principle of the rainwater pump station provided by the embodiment of the utility model is as follows: during dry seasons, the electric cabinet 4 controls the first electric flashboard valve 24 to be opened, controls the second electric flashboard valve 38 to be closed, and the precipitation flows from the inner drain pipe 5 to the self-flow reservoir 21, then flows from the self-flow reservoir 21, flows into the self-flow stilling pool 23 after flowing through the first drain pipe 22, finally flows from the self-flow stilling pool 23, flows into the self-flow drain ditch 6 after flowing through the splayed wall 74, and thus the self-flow drainage of the dry seasons is completed. When the rainfall is increased and the gravity flow mechanism 2 is insufficient to treat the rainfall, the electric cabinet 4 controls the first electric plugboard valve 24 to be closed, controls the second electric plugboard valve 38 to be opened, and the rainfall flows from the inner drain pipe 5 to the storage water tank 31, is conveyed into the first drain pipe 22 under the action of the submerged axial flow pump 34, then flows into the forced drainage stilling pool 37, flows into the gravity drainage ditch 6 after being stilled by the splayed wall 74, and completes rapid drainage in the rainfall. The drainage mode is selected according to the change of rainfall, so that the performance of the rainwater pumping station is fully exerted, and the problems of excessive performance and energy waste of the rainwater pumping station in the dry season in regions with extremely large difference between the rainfall in the dry season and the rainfall in the rainy season are avoided.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The rainwater pump station is characterized by comprising a base (1), wherein a self-flow mechanism (2) and a forced drainage mechanism (3) are arranged on the base (1), the self-flow mechanism (2) is communicated with the forced drainage mechanism (3), the forced drainage mechanism (3) and the self-flow mechanism (2) are electrically connected with an electric cabinet (4), and the self-flow mechanism (2) and the forced drainage mechanism (3) are both communicated with a self-flow drainage ditch (6) and an inner drainage pipe (5); the gravity flow mechanism (2) and the forced drainage mechanism (3) are both provided with protection mechanisms;

the gravity flow mechanism (2) comprises:

the gravity flow water storage tank (21) is arranged on the base (1), and the gravity flow water storage tank (21) is communicated with the inner drain pipe (5);

the first electric plug board valve (24) is arranged at the communication position of the self-flow reservoir (21) and the inner drain pipe (5), and the first electric plug board valve (24) is electrically connected with the electric cabinet (4);

a first drain pipe (22), one end of the first drain pipe (22) is communicated with the gravity flow reservoir (21);

the self-flowing stilling pool (23), the self-flowing stilling pool (23) is communicated with one end of the first drain pipe (22) far away from the self-flowing water reservoir (21), and one end of the self-flowing stilling pool (23) far away from the first drain pipe (22) is communicated with the self-flowing drain ditch (6);

wherein the forced drainage mechanism (3) is used for actively draining water.

2. A rainwater pump station according to claim 1, characterized in that the forced drainage mechanism (3) comprises:

the storage adjusting water tank (31), the storage adjusting water tank (31) is arranged on the base (1), and the storage adjusting water tank (31) is communicated with the inner drain pipe (5);

the partition plate (32) is covered by the partition plate (32) and is fixedly arranged at the top of the regulating and accumulating water tank (31);

the water collecting pit (33) is arranged at the bottom of the regulating and accumulating water tank (31);

the submersible axial flow pump (34), the submersible axial flow pump (34) is fixedly arranged on the partition board (32), a water pumping port of the submersible axial flow pump (34) is communicated with the storage tank (31), and the submersible axial flow pump (34) is electrically connected with the electric cabinet (4);

a second drain pipe (36), wherein one end of the second drain pipe (36) is communicated with a water outlet of the submersible axial flow pump (34);

the submersible pump (35), the submersible pump (35) is fixedly arranged on the bottom wall of the water collecting pit (33), and the water outlet of the submersible pump (35) is communicated with the second drain pipe (36);

a forced drainage stilling pool (37), wherein the forced drainage stilling pool (37) is communicated with one end of the second drain pipe (36) far away from the submerged axial flow pump (34), and one end of the forced drainage stilling pool (37) far away from the second drain pipe (36) is communicated with the self-flow drain ditch (6);

the second electric plug board valve (38), the second electric plug board valve (38) is installed in the position where the regulating and accumulating water tank (31) is communicated with the inner drain pipe (5), and the second electric plug board valve (38) is electrically connected with the electric cabinet (4).

3. The rainwater pump station of claim 2, wherein: the side wall of the storage pond (31) is fixedly provided with a plurality of first ultrasonic liquid level devices (8), a plurality of first ultrasonic liquid level devices (8) are vertically arranged, and a plurality of first ultrasonic liquid level devices (8) are electrically connected with the electric cabinet (4).

4. The rainwater pump station of claim 2, wherein: the protection mechanism comprises a grid (71), and the grid (71) is fixedly arranged at one end of the inner drain pipe (5) close to the second electric plugboard valve (38).

5. The rainwater pump station of claim 2, wherein: the protection mechanism further comprises a force dissipating step (72), and the force dissipating step (72) is fixedly arranged on the bottom wall of the water collecting pit (33).

6. A rainwater pump station according to claim 2, wherein the protection mechanism further comprises a backflow prevention assembly (73), the backflow prevention assembly (73) comprising:

the second ultrasonic liquid level device (731) is fixedly arranged at one end, close to the gravity drainage ditch (6), of the gravity absorption tank (23), and the second ultrasonic liquid level device (731) is electrically connected with the electric cabinet (4);

and the electric butterfly valve (732) is fixedly arranged and communicated with one end, close to the gravity flow reservoir (21), of the second drain pipe (36), and the electric butterfly valve (732) is electrically connected with the electric cabinet (4).

7. A rainwater pump station according to claim 3, wherein: the protection mechanism further comprises two groups of splayed walls (74), wherein one group of splayed walls (74) is fixedly arranged at the position where the self-flow drainage ditch (6) is communicated with the self-flow stilling pool (23), and the other group of splayed walls (74) is fixedly arranged at the position where the self-flow drainage ditch (6) is communicated with the forced drainage stilling pool (37).

8. A rainwater pump station according to claim 3, wherein: the protection mechanism further comprises two groups of flap valves (75), wherein one group of flap valves (75) is fixedly installed at one end of the first drain pipe (22) close to the first drain pipe (22), and the other group of flap valves (75) is fixedly installed at one end of the second drain pipe (36) close to the self-flow drain ditch (6).