CN114562016A - Integration sewage promotes pump station - Google Patents

Abstract

The invention discloses an integrated sewage lifting pump station, aiming at solving the defects of incomplete sewage discharging effect and difficult internal cleaning of the sewage lifting pump station in the prior art, and the invention solves the technical problems by the following technical means, comprising the following steps: the pump station shell is used as the foundation of the integrated sewage lifting pump station; the pump bottom is arranged at the bottom of the pump station shell; the submersible sewage pump set is arranged in the pump station shell and used for pumping sewage out of the bottom of the pump station shell; the sewage submersible pump group comprises a large sewage submersible pump and a small sewage submersible pump; the detection control module is used for monitoring the water level of the sewage in the pump station shell; the detection control module controls the large submersible sewage pump and the small submersible sewage pump to work by monitoring the water level of sewage in the pump station shell, when the sewage amount is large, the detection control module controls the large submersible sewage pump to work, and when the sewage amount is small, the detection control module controls the small submersible sewage pump to work, so that the sewage in the pump station shell can be discharged timely and more thoroughly.

Description

An integrated sewage lifting pump station

technical field

The invention relates to the technical field of an integrated pump station, and more particularly, to an integrated sewage lifting pump station.

Background technique

The sewage treatment plant generally adopts the method of gravity flow to pass through various structures and equipment in the operation process. However, due to the limitations of the topography and geology of the plant. It is necessary to add a lifting pump station at the pretreatment place to raise the sewage to a certain height before it can be operated by the gravity flow method. The function of the sewage lifting pump station is to lift the sewage from the upstream to the height required by the subsequent treatment unit, so that it can realize gravity flow. The lifting pump station is generally composed of a water pump, a water collection tank and a pump room. In the integrated sewage lifting pump station in the prior art, generally, the sewage at the bottom of the pump station cannot be discharged cleanly, and there is a certain amount of accumulated water, impurities, dirt, sludge, etc. When the water does not flow for a long time, it is easy to turn black, smelly, rotten and produce harmful gases, and it is easy to breed pests such as mosquitoes. It will have adverse effects on the surrounding people and livestock. Therefore, how to clean up the accumulated water, impurities and sludge in the integrated sewage lift pump in time is an urgent problem to be solved.

China Patent Announcement No. CN110984299A, the announcement date is April 10, 2020, the name of the invention is a multifunctional integrated pumping station, the application discloses a multifunctional integrated pumping station, including the main body of the pumping station The lower surface of the main body of the pumping station is provided with a pedestal, the front surface of the pedestal is installed with a sewage outlet, the outer surface of the lower end of the main body of the pumping station is welded with a water inlet, and the outer surface of the lower end of the main body of the pumping station is located at the inlet A decontamination plate is installed at the lower position of the water outlet, a water outlet is welded through the outer surface of the upper end of the main body of the pump station, a top cover is rotatably installed on the upper surface of the main body of the pump station, and one side of the upper surface of the main body of the pump station is installed. An air outlet pipe is welded through, a support rod is welded on the other side of the upper surface of the main body of the pump station, a control cabinet is installed on the upper surface of the support rod, and a stirring box is arranged at the inner lower end of the main body of the pump station. The above invention is provided with a variety of filtering devices, which can remotely monitor the device during operation. The sewage discharge and water outlet of the device are different channels, but the integrated pump station cannot be cleaned and cleaned during use. .

Chinese Patent No. CN202022190621.0, the announcement date is June 4, 2021, and the name of the utility model is an integrated sewage lifting pump station. The application discloses an integrated sewage lifting pump station, including a base, and the top of the base is provided with a A cylinder body, the bottom of one side of the cylinder body is provided with a water inlet, a water pump is installed at the middle position inside the cylinder body, the output end of the water pump is installed with a first drain pipe, and the top of the first drain pipe extends To the outside of the cylinder body, the inner top of the cylinder body is fixed with a cleaning pipe, and the bottom of the cleaning pipe is evenly provided with spray heads. The arrangement of the annular cleaning pipe inside the cylinder body of the utility model uses the nozzle at the bottom of the cleaning pipe to spray water toward the inner wall of the cylinder body, and the cleaning pipe is connected to the first drainage pipe through the second drainage pipe, so that the water pump is used for cleaning. In the process of lifting and draining, the water source can be diverted to the inside of the cleaning pipe, and the cylinder can be cleaned while continuously draining. The inner wall of the pump is cleaned, but there are many impurities such as fine sand and particles in the sewage, which can easily cause the filter screen to be blocked, making the effect of the filter screen worse; The impurities on the base are cleaned, but the sludge or magazines on the base cannot be discharged; the ability to discharge sewage is reduced.

SUMMARY OF THE INVENTION

The invention overcomes the deficiencies in the above-mentioned technologies, and provides an integrated sewage lifting pump station, which can solve the problems of poor cleaning ability of the inner wall of the pump, water accumulation at the bottom, impurities, dirt and sludge that are difficult to clean up in the prior art. question.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: an integrated sewage lifting pump station, which is characterized in that it includes:

Pumping station shell, as the foundation of the integrated sewage lifting pumping station;

The pump bottom is arranged at the bottom of the pump station shell;

a pump set, which is arranged inside the pump station shell and used to pump out sewage from the bottom of the pump station shell; the pump set includes a large pump and a small pump;

The detection control module is used to monitor the water level of the sewage inside the pump station shell;

Wherein, the detection control module controls the work of the large pump and the small pump by monitoring the water level of the sewage inside the pump station shell.

The present invention controls the working state of the large pump and the small pump by arranging the large pump and the small pump in the pump station shell, and through the cooperation between the large pump and the small pump, the monitoring control module can monitor the water level in the pump station shell. , When the amount of sewage is large, the detection and control module controls the large pump to work; when the amount of sewage is small, the detection and control module controls the small pump to work, so that the sewage in the pump station shell can be discharged in time; The function can make the small pump clean the sewage more thoroughly.

Preferably, the pump station shell is provided with a water outlet pipe, the large pump is connected to the water outlet pipe through a large pipeline, and the small pump is connected to the water outlet pipe through a small pipeline; An annular flushing tube is connected.

The arrangement of the annular flushing pipe can make secondary utilization of the sewage in the pump station shell, and use the sewage to flush out from the annular flushing pipe to clean the side wall of the pumping station shell.

Preferably, the bottom of the pump bottom is set as an inverted cone.

The bottom of the pump bottom is set into an inverted cone, which is convenient for the collection of sewage, so that the sewage can be discharged easily.

Preferably, the small pipeline and the large pipeline are provided with check valves for preventing the backflow of sewage.

Set check valves on the large and small pipelines to prevent the sewage from flowing backwards from other water pipes when the sewage is discharged.

Preferably, a liquid-separating plate is provided on the bottom of the pump, a liquid-separating wall is arranged in the circumferential direction of the liquid-separating plate, and a through groove is arranged in the circumferential direction of the liquid-separating wall; There is a fouling guide fan, the fouling guide fan is connected with a rotating shaft, the fan blade of the fouling guide fan is arc-shaped, and the fan blade is in contact with the bottom wall of the liquid separator.

In order to allow the sewage to be preliminarily separated, so that the heavy sludge and sewage can be separated, a sewage fan is set up, and the fan blade is in contact with the bottom wall of the liquid separator, so that the sewage guide fan can pass the fan blade during operation. The sludge on the bottom wall of the separatory plate is scraped off in time, and at the same time, the sludge is swept to the circumferential direction of the separatory plate by the action of the arc-shaped fan blades, so that the sludge is concentrated on the periphery of the separatory wall; The sludge is better cleaned.

Preferably, the small pump is arranged in the liquid separation pan, the liquid separation pan cooperates with the side wall of the pump bottom to form an annular sewage guide groove, and the large pump is arranged in the annular sewage guide groove Inside.

Through the action of the sewage guide fan, the sludge and the waste water are initially separated, so that the sewage in the separation tray is relatively clean. The sludge will gather in the annular sewage guide tank by the action of gravity, while the faster sewage will be separated in the separation tray. In the liquid pan, the large pump and the small pump are used for separate work. The large pump is used to discharge sewage with high sludge content, while the small pump is used to discharge sewage in the liquid separation tray, which improves the efficiency of sewage discharge; at the same time, due to the annular flushing The pipe is connected with the small pump, so that the small pump can make the annular flushing pipe flush the side wall of the pump station shell more clean by extracting relatively clean sewage in the liquid separator.

Preferably, a liquid guide hole is provided in the center of the liquid distribution plate, a dirt-holding cavity is formed between the bottom of the liquid-separation disk and the pump bottom, and the rotating shaft extends through the liquid guide hole to the dirt-holding cavity , a stirring paddle is arranged in the dirt-holding cavity, and the stirring paddle is driven by the rotating shaft to rotate.

The rotation of the stirring paddle can agitate the sludge in the dirt-holding chamber, so that the sludge in the dirt-holding chamber will not be deposited in the dirt-holding chamber, so that the sludge in the dirt-holding chamber can be discharged from the large pump.

Preferably, the height of the bottom wall of the liquid separation tray gradually decreases from the center to the circumferential direction.

The height of the bottom wall of the liquid-separating pan is gradually reduced from the center to the circumferential direction, so that the sludge can be more easily discharged from the liquid-separating pan to the circumferential direction by the action of gravity.

Preferably, the stirring paddle includes:

a center sleeve, sleeved on the rotating shaft, the center sleeve and the rotating shaft can rotate relative to each other;

A paddle, the paddle is evenly arranged in the circumferential direction of the central sleeve, a circular hole is provided on the end surface of the paddle close to the central casing, and a pin hole corresponding to the circular hole is provided on the rotating shaft , a spring and a pin are arranged in the pin hole;

Wherein, both ends of the spring abut on the bottom surface of the pin hole and the pin respectively, so that the stirring paddle can rotate along with the rotating shaft through the connection action of the pin.

When the density of the sludge reaches a certain level, the operation of the stirring paddle will be prevented. In order to prevent the stirring paddle from being deformed or broken under the action of the sludge resistance, the stirring paddle is set as the center sleeve and the paddle. When the resistance is large, the pin will shrink into the pin hole, so that the relative rotation between the center sleeve and the rotating shaft occurs, thereby preventing the blade from being broken.

Preferably, the paddle is rotatably arranged in the central sleeve, a first transmission gear is arranged in the circumferential direction of one end of the paddle close to the central sleeve, and the rotating shaft is located on the circumference of the central sleeve. A rotation ring is arranged in the direction, and a second transmission gear is arranged on the circumferential direction of the rotation ring, and the first transmission gear and the second transmission gear are engaged.

When the blade cannot rotate due to the resistance of the sludge, the center sleeve and the rotating shaft will rotate. When there is relative rotation between the center sleeve and the rotating shaft, the first rotating gear can drive the rotation of the rotating shaft. The second rotating gear rotates, the rotation of the second gear makes the paddle rotate, and the rotation of the paddle can stir the sludge and reduce the resistance of the sludge, so that the force of the pin abutting in the circular hole is greater than that of the sludge. The resistance of the blade enables the shaft to drive the rotating sleeve to rotate again.

Compared with the prior art, the beneficial effects of the present invention are: (1) the working state of the pump group can be controlled according to the amount of sewage, so that the sewage can be cleaned better; (2) the sewage is separated from the sludge containing a lot of sludge, So that the discharge efficiency of sewage is improved; (3) the inner wall of the pump station shell is cleaned by using the sewage, and the utilization efficiency of energy is improved.

Description of drawings

Fig. 1 is a sectional view of the present invention;

Fig. 2 is the internal structure schematic diagram of the present invention;

3 is a cross-sectional view of another embodiment of the present invention;

Fig. 4 is a partial enlarged view in Fig. 3;

Fig. 5 is the structure diagram of the liquid separator of the present invention;

6 is a structural diagram of another embodiment of the present invention;

Fig. 7 is a partial enlarged view in Fig. 6;

Figure 8 is a sectional view of the center sleeve;

In the picture: 1. Pumping station shell, 11, Water inlet, 2. Pump bottom, 21, Sewage chamber, 22, Sewage tank, 3. Pump set, 31, Large pump, 311, Large pipeline, 32, Small Pump, 321, small pipeline, 322, flushing pipe, 4, separator plate, 41, separator wall, 411, groove, 42, sewage guide fan, 421, fan blade, 422, extension structure, 5, rotating shaft, 51 , pin hole, 52, spring, 53, pin, 54, rotating ring, 541, second transmission gear, 6, stirring paddle, 61, center sleeve, 62, paddle, 621, round hole, 622, transmission gear.

Detailed ways

Below by specific embodiment, and in conjunction with accompanying drawing, the technical scheme of the present invention is further described in detail:

Embodiment 1: Referring to Figure 1 to Figure 2, an integrated sewage lifting pump station is characterized in that it includes:

Pumping station shell 1, as the foundation of the integrated sewage lifting pumping station;

The pump bottom 2 is arranged at the bottom of the pump station shell 1;

The pump group 3 is arranged inside the pump station shell 1, and is used to extract the sewage from the bottom of the pump station shell 1; the pump group 3 includes a large pump 31 and a small pump 32. The pump 32 is a small high-lift submersible sewage pump with stirring function, and the large pump 32 adopts a submersible sewage pump;

The detection control module is used to monitor the water level of the sewage inside the pump station shell 1. The detection control module is composed of sensors. The detection module includes but is not limited to pressure sensors, float switches, water level electrodes and other equipment;

Among them, the detection control module controls the work of the large pump 31 and the small pump 32 by monitoring the water level of the sewage inside the pump station shell 1 .

The present invention controls the large pump by arranging the large pump 31 and the small pump 32 in the pump station shell 1, and through the cooperation between the large pump 31 and the small pump 32, the monitoring control module can monitor the water level in the pump station shell. 31 and the small pump 32 are working, when the amount of sewage is large, the detection control module controls the large pump 31 to work, and when the amount of sewage is small, the detection control module controls the small pump 32 to work, so that the sewage in the pump station shell 1 can be Timely discharge; and through the sewage discharge function of the small pump 32, the small pump 32 can clean the sewage more thoroughly.

The pump station shell 1 is provided with a water outlet pipe 11, the large pump 31 is connected with the water outlet pipe 11 through a large pipeline 311, the small pump 32 is connected with the water outlet pipe 11 through a small pipeline 321; the small pipeline 321 is connected with an annular flushing pipe 322. The bottom of the pump bottom 2 is arranged in an inverted cone shape. The small pipeline 321 and the large pipeline 311 are provided with check valves 33 for preventing the backflow of sewage.

The arrangement of the annular flushing pipe can make secondary utilization of the sewage in the pump station shell, and use the sewage to flush out from the annular flushing pipe to clean the side wall of the pumping station shell. The bottom of the pump bottom is set into an inverted cone, which is convenient for the collection of sewage, so that the sewage can be discharged easily. Set check valves on the large and small pipelines to prevent the sewage from flowing backwards from other water pipes when the sewage is discharged.

Embodiment 2: Referring to FIG. 3 to FIG. 5 , this embodiment is similar in structure to Embodiment 1, except that the pump bottom 2 is provided with a liquid separator 4, and the liquid separator 4 is provided with a liquid separator in the circumferential direction. The wall 41, the circumferential direction of the separation wall 41 is provided with a through groove 411, and the separation plate 4 is connected with the inner circumferential wall of the pump bottom 2 through a rib (not shown in the figure) arranged in the outer circumferential direction of the separation wall 41; A dirt guide fan 42 is arranged on the separator plate 4, the dirt guide fan 42 is connected with a rotating shaft 5, the fan blades 421 of the dirt guide fan 42 are arc-shaped, and the fan blades 421 are in contact with the bottom wall of the separator dish 4; In this embodiment, the large pump 31 adopts a submersible sewage pump with a higher power, and the small pump 32 adopts a submersible sewage pump with a lower power.

The small pump 32 is arranged in the liquid separation tray 4, the liquid separation tray 4 cooperates with the side wall of the pump bottom 2 to form an annular sewage guide groove 22, the large pump is arranged in the annular sewage guide groove 22, and the bottom wall of the liquid separation tray 4 The height gradually decreases from the center to the circumferential direction. The fan blade 421 can be extended to the annular sewage guide groove 22 to form an extension structure 422 , so that the rotation of the fan blade 421 can rotate in the annular sewage guide groove 22 at the same time, thereby realizing the stirring function of the sewage in the annular sewage guide groove 22 .

In Example 1, since the sewage is directly connected with the small pump and discharged from the annular flushing pipe, the sewage may contaminate the side wall of the pump station shell twice; The effect is not good, and the sludge cannot be treated; in this embodiment, in order to enable the preliminary separation of sewage, so that the sludge and sewage with a heavy weight can be separated, a sewage fan 42, a fan blade 421 and a liquid separator are provided. The bottom wall of 4 is in contact with each other, so that the fouling fan 42 can scrape off the sludge on the bottom wall of the liquid separator 4 in time through the fan blade 421 when it is working, and at the same time, the sludge is removed by the action of the arc-shaped fan blade 421. Sweep in the circumferential direction of the separator plate 4, so that the sludge is concentrated on the periphery of the separator wall 41; the sludge at the bottom is better cleaned; the sludge and the waste water are preliminarily separated by the action of the sewage guide fan 42 , so that the sewage in the separation tray 4 is relatively clean, and the sludge will gather in the annular sewage guide tank 22 by the action of gravity, while the faster sewage is in the liquid separation tray 4, through the large pump 31 and the small pump 32. The large pump 31 is used for the discharge of sewage with high sludge content, and the small pump 32 is used for the discharge of sewage in the separation plate 4 to improve the efficiency of sewage discharge; Connected, so that the small pump 32 can make the annular flushing pipe 322 flush the side wall of the pump station shell 1 more cleanly by extracting the relatively clean sewage in the liquid separator 4, and the sewage with less sludge can also reduce the sludge pollution. The influence of the small pump 32 reduces the use efficiency of the small pump 32 due to the effect of large sludge.

Embodiment 3: Referring to FIG. 6 to FIG. 8 , this embodiment is similar in structure to Embodiment 2, the difference is that a liquid guide hole 44 is provided in the center of the liquid distribution plate 4, and the bottom of the liquid distribution plate 4 is connected to the bottom of the pump. A dirt accommodating cavity 21 is formed between the two, and the rotating shaft 5 extends through the liquid guide hole 44 to the dirt accommodating cavity 21 . The height of the bottom wall of the liquid separator 4 gradually decreases from the center to the circumferential direction.

Preferably, the stirring paddle 6 includes:

The center sleeve 61 is sleeved on the rotating shaft 5, and the center sleeve 61 and the rotating shaft 50 can rotate relative to each other;

The paddle 62, the paddle 62 is evenly arranged in the circumferential direction of the center sleeve 61, the end face of the paddle 62 close to the center sleeve 61 is provided with a circular hole 621, the rotating shaft 5 is provided with a pin hole 51 corresponding to the circular hole 621, the pin hole 51 is provided with a spring 52 and a pin 53;

The two ends of the spring 52 abut on the bottom surface of the pin hole 51 and the pin 53 respectively, so that the stirring paddle 6 can rotate with the rotating shaft 5 through the connection of the pin 53 .

The paddle 62 is rotatably arranged in the center sleeve 61, a first transmission gear 622 is arranged in the circumferential direction of one end of the paddle 62 close to the center sleeve 61, and the rotating shaft 5 is provided with a rotating ring 54 in the circumferential direction in the center sleeve 61, and rotates A second transmission gear 521 is provided in the circumferential direction of the ring 54 , and the first transmission gear 622 and the second transmission gear 541 are engaged with each other.

In Example 2, due to the limited volume of the annular sewage guide tank, if the amount of sludge is large, the annular sewage tank may be filled up, so that a large amount of sludge will still accumulate in the separator; The cavity 21 allows the sludge to be collected in the dirt-holding cavity 21. Due to the action of gravity, with the increase of the sludge, less sewage in the upper layer of the sludge can be poured upward from the liquid guide hole 44; at the same time, when the density of the sludge reaches To a certain extent, the operation of the stirring paddle 6 will be prevented. In order to prevent the stirring paddle 6 from being deformed or broken under the action of sludge resistance, the stirring paddle 6 is set into the center sleeve 61 and the paddle 62. When the resistance is large, the pin 52 will shrink into the pin hole 51 , so that the center sleeve 61 and the rotating shaft 62 rotate relative to each other, thereby preventing the paddle 62 from being broken. When the paddle 62 cannot rotate due to the resistance of the sludge, the center sleeve 61 and the rotating shaft 62 rotate. When the center sleeve 61 and the rotating shaft 62 rotate relative to each other, the second transmission gear 541 The rotation of the rotating shaft 5 can drive the first transmission gear 622 to rotate, the rotation of the first transmission gear 622 makes the paddle 62 rotate, and the rotation of the paddle 62 can stir the sludge and reduce the resistance of the sludge, so that the The force with which the pin 52 abuts in the circular hole 621 is greater than the resistance of the sludge to the paddle 72 , so that the rotating shaft 5 can drive the rotating sleeve 61 to rotate again.

In the present invention, by setting the large pump 31 and the small pump 32, the work of the large pump 31 and the small pump 32 can be controlled according to the amount of sewage, and the small pump 32 adopts a small high-lift pump, so that the sewage can be discharged at the same time. To the effect of stirring the sewage, the sewage can be discharged in time; at the same time, the annular flushing pipe 322 can be arranged so that the inner wall of the pump station shell 1 can be flushed through the flushing action of the annular flushing pipe 322, so that the inner wall of the pump station shell 1 can be kept clean , and the flushing uses sewage for flushing, which is more environmentally friendly; the pump bottom 2 is set into an inverted cone, which is convenient for the collection and discharge of sewage.

The above-mentioned embodiments are only preferred solutions of the present invention, and do not limit the present invention in any form. There are other variations and modifications under the premise of not exceeding the technical solutions recorded in the claims.

Claims (10)

1. The utility model provides an integration sewage promotes pump station, characterized by includes:

the pump station shell (1) is used as the foundation of the integrated sewage lifting pump station;

the pump bottom (2) is arranged at the bottom of the pump station shell (1);

the pump set (3) is arranged inside the pump station shell (1) and is used for pumping sewage out of the bottom of the pump station shell (1); the pump group (3) comprises a large pump (31) and a small pump (32);

the detection control module is used for monitoring the water level of sewage in the pump station shell (1);

the detection control module controls the work of the large pump (31) and the small pump (32) by monitoring the water level of sewage in the pump station shell (1).

2. The integrated sewage lifting pump station according to claim 1, wherein a water outlet pipe (11) is arranged in the pump station housing (1), the large pump (31) is connected with the water outlet pipe (11) through a large pipeline (311), and the small pump (32) is connected with the water outlet pipe (11) through a small pipeline (321); the small pipeline (321) is connected with an annular flushing pipe (322).

3. The integrated sewage lifting pump station according to claim 1, wherein the bottom of the pump bottom (2) is arranged in an inverted cone shape.

4. The integrated sewage lift pump station according to claim 2, wherein the small pipeline (321) and the large pipeline (311) are provided with check valves (33) for preventing backflow of sewage.

5. The integrated sewage lifting pump station according to claim 1, wherein a liquid separating disc (4) is arranged on the pump bottom (2), a liquid separating wall (41) is arranged in the circumferential direction of the liquid separating disc (4), and a through groove (411) is arranged in the circumferential direction of the liquid separating wall (41); divide being provided with on liquid dish (4) one and leading dirty fan (42), it is connected with a pivot (5) to lead dirty fan (42), it is arc to lead flabellum (421) of dirty fan (42), flabellum (421) with the diapire of liquid dish (4) contacts.

6. The integrated sewage lifting pump station according to claim 5, wherein the small pump (32) is arranged in the liquid distribution disc (4), the liquid distribution disc (4) and the side wall of the pump bottom (2) are matched to form an annular sewage guide groove (22), and the large pump is arranged in the annular sewage guide groove (22).

7. The integrated sewage lifting pump station according to claim 5, wherein a liquid guide hole (44) is formed in the center of the liquid separation disc (4), a sewage containing cavity (21) is formed between the bottom of the liquid separation disc (4) and the pump bottom (2), the rotating shaft (5) penetrates through the liquid guide hole (44) and extends to the sewage containing cavity (21), a stirring paddle (6) is arranged in the sewage containing cavity (21), and the stirring paddle (6) is driven by the rotating shaft (5) to rotate.

8. The integrated sewage lifting pump station according to claim 5, 6 or 7, wherein the height of the bottom wall of the liquid separating tray (4) is gradually reduced from the center to the circumferential direction.

9. The integrated sewage lift pump station according to claim 7, wherein the agitator paddle (6) comprises:

the central sleeve (61) is sleeved on the rotating shaft (5), and the central sleeve (61) and the rotating shaft (5) can rotate relatively;

the paddle (62) is uniformly arranged in the circumferential direction of the central sleeve (61), a round hole (621) is formed in the end face, close to the central sleeve (61), of the paddle (62), a pin hole (51) corresponding to the round hole (621) is formed in the rotating shaft (5), and a spring (52) and a pin (53) are arranged in the pin hole (51);

the two ends of the spring (52) are respectively abutted against the bottom surface of the pin hole (51) and the pin (53), so that the stirring paddle (6) can rotate along with the rotating shaft (5) through the connection effect of the pin (53).

10. The integrated sewage lifting pump station according to claim 9, wherein the paddle (62) is rotatably disposed in the center sleeve (61), a first transmission gear (622) is disposed in a circumferential direction of one end of the paddle (62) close to the center sleeve (61), a rotating ring (54) is disposed in a circumferential direction of the rotating shaft (5) in the center sleeve (61), a second transmission gear (541) is disposed in a circumferential direction of the rotating ring (54), and the first transmission gear (622) and the second transmission gear (541) are engaged with each other.

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