WO2023236455A1

WO2023236455A1 - Urban underground drainage pump capable of preventing blockages with foreign matter

Info

Publication number: WO2023236455A1
Application number: PCT/CN2022/134055
Authority: WO
Inventors: 倪华珑; 朱加轩; 张利利; 余玲
Original assignee: 安徽金晥泵业科技股份有限公司
Priority date: 2022-06-07
Filing date: 2022-11-24
Publication date: 2023-12-14
Also published as: CN115095529A; ZA202300302B

Abstract

An urban underground drainage pump capable of preventing the blockage of foreign matters, comprising a bottom plate (1) and a pipe body (3), wherein an electric motor (2) is fixed to one side of the top of the bottom plate (1) by means of bolts; the pipe body (3) is mounted at an output end of the electric motor (2); a liquid inlet (4) is formed in one side of the pipe body (3); fixing columns (6) are uniformly fixed to one side of the liquid inlet (4) by means of spot welding; a vibration mechanism (5) is fixed at one end of each of the fixing columns (6) by means of spot welding; and a pollution discharge mechanism (8) is provided inside the pipe body (3). The drainage pump can better prevent blockages with foreign matter.

Description

An urban underground drainage pump that prevents foreign matter clogging

Technical field

The present invention relates to the technical field of drainage pump sewage discharge, specifically an urban underground drainage pump that prevents foreign matter clogging.

Background technique

Drainage pump is a type of centrifugal pump. The working principle of the entire centrifugal pump is: relying on the high-speed rotating impeller, the liquid obtains energy under the action of inertial centrifugal force to increase the pressure. Before the water pump works, the pump body and water inlet pipe must be filled water to prevent cavitation. When the impeller rotates rapidly, the blades cause the water to rotate quickly. The rotating water flies away from the impeller under the action of centrifugal force. After the water in the pump is thrown out, the central part of the impeller forms In the vacuum area, the water from the water source is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure (or water pressure). In this way, continuous circulation can be achieved, and continuous water pumping can be achieved;

However, due to the different working environments of water pumps, some urban underground drainage pumps are more susceptible to damage. The main reason is that urban underground liquids carry a lot of impurities and foreign matter, which can easily cause clogging of the fan blades in the water pump, and also cause the fan blades to be blocked. The blades are not running smoothly and the motor is burned out;

Foreign objects that are often faced in underground drainage pumps are divided into filamentous foreign objects such as plastic bag garbage, water plants, and metal garbage;

1. Soft foreign objects such as plastic bags are most likely to block the drainage pump and are also one of the most floating foreign objects in the water. A rotating blade is usually installed at the front of the drainage pump to break the complete plastic that enters the water pump and then remove it. It is discharged by the drainage pump, but this method will cause the broken plastic to wrap around the rotating shaft of the impeller. At the same time, the broken plastic will be transported elsewhere by the drainage pump, which will also cause environmental pollution problems;

2. Some water plants, hair and other filamentous foreign objects can easily cause impeller rotation. After the drainage pump works for a long time, the impeller speed will be greatly reduced due to the winding of the filaments. For such foreign objects, some drainage pumps will drain water directly, without do processing;

3. For metal garbage, intercept it at the water inlet of the water pump. Basically, there will be no metal damage to the impeller of the drainage pump;

To this end, we propose an urban underground drainage pump that prevents foreign matter clogging.

Contents of the invention

The object of the present invention is to provide an urban underground drainage pump that prevents foreign matter clogging, so as to solve the problems proposed in the above background technology:

1. The motor rotates to drive the impeller in the tube body to rotate, causing the entire water flow with foreign matter to enter the baffle from the liquid inlet, causing part of the liquid opening on the entire baffle to be blocked, thereby causing the originally sealed liquid opening to Open, when the entire sealing arc plate slides on the inner wall of the pipe, the resisting column pushes out the entire foreign matter blocked in the liquid port, and driven by the water flow, the foreign matter on the baffle is flushed into the drain connected to the side of the liquid port. in the tank to avoid the problem of foreign objects coming into contact with the impeller driven by the water flow;

2. The baffle plate installed in the pipe body intercepts the filamentous foreign matter in the water flow, so that the entire filamentous foreign matter hangs on the clamping column. The entire connecting plate continuously vibrates left and right driven by the six-sided rotating column, so that the entire connecting plate vibrates left and right. The blade vibrates left and right in the slot to cut the filamentous foreign matter hanging on the clamping column, avoiding the problem of the entire filamentary foreign matter being wrapped around the impeller;

3. Through the sewage storage box installed on the entire pipe body, some of the foreign objects pumped in by the drainage pump, such as plastic bags and other floating foreign objects, are uniformly placed in the sewage trough for storage to prevent the entire plastic waste from being discharged to other places by the drainage pump. , causing secondary pollution of the environment by foreign matter;

In order to achieve the above objects, the present invention provides the following technical solutions:

An urban underground drainage pump that prevents foreign matter clogging, including a bottom plate and a pipe body. A motor is fixed on one side of the top of the bottom plate through bolts, and a pipe body is installed at the output end of the motor. One side of the pipe body is provided with a There is a liquid inlet, and a fixed column is evenly fixed on one side of the liquid inlet through spot welding, and one end of the fixed column is fixed with a vibration mechanism through spot welding;

The vibration mechanism includes a box, a sliding plate, a connecting cover, a spring and a connecting shaft. One end of the fixed column is fixed to the box through spot welding, and a sliding plate is slidably connected to the inner wall of the box. One side of the sliding plate passes through a point. A connecting shaft is welded and fixed, and one end of the connecting shaft penetrates one side of the box and extends into the tube body. The inner walls of both sides of the box are evenly and symmetrically fixed with connecting covers through spot welding, and are located opposite the two connecting covers. The surface is fixed with a spring through spot welding;

One end of the connecting shaft located in the pipe body is equipped with a sewage discharge mechanism. The sewage discharge mechanism includes a baffle, a liquid hole, a sealing arc plate, a sealing film, a support frame and a support column. One end of the connecting shaft is fixed with a spot welding device. The baffle is evenly provided with liquid openings on one side of the baffle. A sealing arc plate is fixed on one side of the baffle through spot welding, and a sealing film is fixed on one side of the sealing arc plate through adhesion. A support frame is fixed on the inner wall of the pipe body through spot welding, and a supporting column is evenly fixed on one side of the support frame through spot welding.

Further, a liquid opening is provided on one side of the top of the pipe body, one side of the sealing arc plate is slidingly connected to the inner wall of the pipe, and the sealing arc plate is in contact with the liquid opening, and the support column is in contact with the liquid opening. Port corresponding settings.

Further, a dirt storage tank is fixed with bolts on the top of the pipe body, and a dirt discharge tank is provided in the dirt tank. A partition plate is fixed in the dirt discharge tank and on the inner wall of the bottom of the dirt tank by spot welding. , the liquid opening is connected with the waste drain tank.

Further, the inner wall of the pipe body is fixed with a baffle plate through spot welding, and a through groove is symmetrically and evenly provided on the baffle plate. The inner walls on both sides of the through groove are evenly fixed with clamping posts through spot welding. Rubber plates are fixed by adhesion on both sides of the baffle plate and located on both sides of the through slot, and a top post is fixed by adhesion at the center of the baffle plate.

Furthermore, a cutting mechanism is installed on the inner wall of the pipe body. The cutting mechanism includes a fixed rod, a rotating shaft, a connecting disk, a blade, a hexagonal rotating column and a shaking film. The fixed rod is fixed on the inner wall of the pipe body through spot welding. , and a rotating shaft is movably connected to the fixed rod. One end of the rotating shaft is movably connected to a connecting plate through a bearing, and a blade is evenly connected to one side of the connecting plate. The other end of the rotating shaft is movably connected to a six-sided rotating column. , and a rocking film is evenly fixed on one side of the six-sided rotating column through adhesion.

Further, a liquid outlet is provided on the other side of the pipe body, a lock ring is set on the outer wall of the pipe body and is located at the liquid inlet, and a connecting pipe is connected to one side of the dirt storage tank and is located at the liquid inlet. One end of the connecting pipe runs through the dirt storage tank and is connected with the dirt discharge tank.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the rotation of the motor drives the impeller in the tube to rotate, so that the entire water flow with foreign matter enters the baffle from the liquid inlet, causing part of the liquid opening on the entire baffle to be blocked, and at the same time, the entire baffle is affected. The resistance increases, causing the sealing arc plate connected to one side of the entire baffle to begin to slide on the inner wall of the tube, causing the originally sealed liquid port to open. When the entire sealing arc plate slides on the inner wall of the tube, the support column will move the entire The foreign matter blocked in the liquid port is pushed out, and the foreign matter on the baffle is flushed into the drain tank connected to one side of the liquid port, driven by the water flow, to prevent the foreign matter from contacting the impeller driven by the water flow, causing the entire impeller to be blocked. Foreign matter is entangled and damaged. When the foreign matter on the entire baffle is discharged, the spring in the box pushes the entire connecting shaft to move outward, so that the entire sealing arc plate can block the liquid port to prevent the liquid port from opening and affecting the to the entire drainage pump;

2. In the present invention, the filamentous foreign matter in the water flow is intercepted by the baffle plate installed in the pipe body, so that the entire filamentary foreign matter hangs on the clamping column. At the same time, a blade is installed on one side of the entire through slot, and the entire blade Fixed on the connecting plate, the entire connecting plate continuously vibrates left and right driven by the six-sided rotating column, so that the entire blade vibrates left and right in the through slot for cutting, shredding the filamentous foreign matter hanging on the clamping column to avoid the entire filament. Foreign matter wraps around the impeller. After the drainage pump works for a long time, the speed of the entire impeller is greatly reduced;

3. In the present invention, part of the foreign objects pumped in by the drainage pump, such as plastic bags and other floating foreign objects, are uniformly placed in the sewage discharge tank for storage through the sewage storage tank installed on the entire pipe body, thereby preventing the entire plastic waste from being discharged by the drainage pump again. Enter other places, causing secondary contamination of foreign matter.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of an urban underground drainage pump that prevents foreign matter clogging according to the present invention;

Figure 2 is a schematic sectional view of the front view of the urban underground drainage pump that prevents foreign matter clogging according to the present invention;

Figure 3 is an enlarged schematic diagram of the structure at A of the present invention;

Figure 4 is a schematic diagram of the connection structure between the connecting shaft and the sewage discharge mechanism of the present invention;

Figure 5 is an enlarged schematic diagram of the structure at B of the present invention;

Figure 6 is a schematic side structural view of the baffle plate of the present invention;

Figure 7 is a schematic diagram of the connection structure between the blade and the connection plate of the present invention;

Figure 8 is a schematic diagram of the connection structure between the hexagonal rotating column and the rocking membrane of the present invention.

In the picture: 1. Base plate; 2. Motor; 3. Pipe body; 4. Liquid inlet; 5. Vibration mechanism; 501. Box; 502. Slide plate; 503. Connection cover; 504. Spring; 505. Connecting shaft; 6. Fixed column; 7. Lock ring; 8. Sewage discharge mechanism; 801. Baffle; 802. Liquid hole; 803. Sealing arc plate; 804. Sealing film; 805. Support frame; 806. Support column; 9. Storage Sewage tank; 10. Sewage discharge tank; 11. Liquid port; 12. Connecting pipe; 13. Partition plate; 14. Baffle plate; 15. Channel; 16. Clamping column; 17. Rubber plate; 18. Top column ; 19. Cutting mechanism; 191. Fixed rod; 192. Rotating shaft; 193. Connecting plate; 194. Blade; 195. Six-sided rotating column; 196. Rocking membrane; 20. Liquid outlet.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-8. The present invention provides a technical solution:

Example 1:

During the use of underground drainage pumps in the entire city, the impeller in the entire drainage pump cannot rotate due to plastic garbage and some linear objects blocked in the drainage pipes. Some existing drainage pumps are equipped with interception mechanisms at the water inlet. The effect of preventing foreign matter from entering the pipe body 3 of the drainage pump has been achieved. However, the water source at the water inlet will be blocked by the foreign matter, causing the water flow into the pipe body 3 to be greatly reduced. The other part uses the rotating blade 194 to stir the foreign matter. However, some residues will still be rolled onto the rotating shaft 192 of the impeller. When the drainage pump works for a long time, the pump body will be damaged. For this reason, the present invention collects larger foreign objects and intercepts and crushes the filamentous foreign objects. This method not only protects the drainage pump, but also recycles some larger plastic waste to prevent the drainage pump from discharging some plastic waste into other areas and causing secondary environmental pollution;

The specific operation is shown in Figure 1-2. The entire pump body is fixed on the ground through the bottom plate 1. At the same time, an external pipe is added to the liquid inlet 4 of the entire pump body. The entire pipe is sleeved at the front end of the pipe body 3. At the same time, the entire pipe body The front end of 3 is equipped with a lock ring 7, and the staff can fix the external pipe to the pipe body 3 by rotating the bolts on the entire lock ring 7;

The front end of the entire pipe body 3 is also equipped with a vibration mechanism 5. When the motor 2 starts to drive the impeller in the pipe body 3 to rotate, the water flow enters the pipe body 3 through the external pipe, and the fixed column 6 installed at the front end of the pipe body 3 plays a role. A layer of interception function prevents some hard materials from entering the pipe body 3 and causing damage to the impeller of the entire drainage pump;

When some of the plastic bags in the water enter the pipe body 3, due to the sliding connection shaft 505 in the entire box body 501 and the baffle 801 installed on the entire connecting shaft 505, the entire plastic bag falls to one side of the baffle 801. side, instead of directly entering the other side of the pipe body 3, while preventing the baffle 801 from intercepting the water flow. A plurality of liquid holes 802 are provided on one side of the entire baffle 801, which facilitates the flow of the entire water flow in the pipe body 3. The entire baffle 801 is shown in Figure 4. The entire baffle 801 is provided with an inclined surface. When plastic garbage falls on the board, the plastic bag will follow the water flow to the top flat part of the entire baffle 801, and the drainage pump will work for a long time. Afterwards, a large amount of plastic garbage will fall on the entire baffle 801, causing the water flow on the entire baffle 801 to be blocked. At the same time, the entire baffle 801 will start to move to the right due to the obstruction of the plastic bag, and the entire baffle 801 will A sealing arc plate 803 is installed on the top. The installation of the entire sealing arc plate 803 is to block the liquid opening 11 opened at the top of the pipe body 3 to prevent water flow from flowing into the dirt storage tank 9 and causing the water pressure in the entire pipe body 3 to decrease. , when enough plastic waste is intercepted on the entire baffle 801, the entire baffle 801 moves to the right, causing the sealing arc plate 803 that originally blocked the liquid port 11 to slowly open, and at the same time, the entire pipe body 3 is installed with The support frame 805 has a support column 806 installed on the entire support frame 805. The support column 806 installed on the entire support frame 805 corresponds to the liquid opening 11 opened on the baffle 801. When the entire baffle 801 moves to the right, The supporting column 806 on the entire support frame 805 pushes out the plastic garbage that was originally blocked in the liquid hole 802. Since the liquid hole 11 at the top of the entire tube body 3 is in an open state, the plastic garbage accumulated in the entire baffle 801 flows along the water flow. Together, they enter the dirt storage tank 9 through the liquid port 11;

There is a sewage discharge tank 10 in the entire sewage storage tank 9, and a partition 13 is installed in the sewage discharge tank 10. When the plastic garbage enters the sewage discharge tank 10 along the water flow, it will fall to the left side of the partition 13 and be stored. The additional partition 13 is to prevent the plastic waste from flowing back to the liquid opening 11 and hindering the entry of other plastic waste next time. When the plastic waste on one side of the entire sewage discharge tank 10 is full, the entire side of the sewage storage tank 9 There is a connecting pipe 12 connected, and the diameter of the entire connecting pipe 12 is relatively large, so that the plastic waste in the entire drain tank 10 can be discharged into the box 501 specially used to store plastic waste, thereby preventing the drainage pump from discharging the plastic waste and causing plastic waste to be discharged. Secondary pollution of garbage;

When the plastic waste on the entire baffle 801 is discharged, the liquid hole 802 on the entire baffle 801 is in an open state. At the same time, the entire baffle 801 is reduced by the thrust of the water flow. Due to the connecting shaft 505 on one side of the entire baffle 801 Connected to the sliding plate 502 in the box 501, a connecting cover 503 is evenly provided on the inner wall of the entire sliding plate 502 and the box 501, and a spring 504 is installed in the entire connecting cover 503. When there is more plastic on the baffle 801 After the garbage is removed, the baffle 801 continuously pulls the sliding plate 502 in the entire box 501 through the connecting shaft 505. Since multiple sets of springs 504 are installed on the entire sliding plate 502 and the inner wall of the box 501, when the plastic garbage on the baffle 801 is discharged, The thrust force on the entire baffle 801 is reduced, and the spring 504 pulls the right-moving baffle 801 back, so that the sealing arc plate 803 on the entire baffle 801 seals the liquid port 11 again, and a seal is pasted on the entire sealing arc plate 803 The film 804 improves the sealing effect of the entire sealing arc plate 803 on the liquid port 11 and prevents the entire liquid port 11 from leaking and causing the water pressure in the entire pipe body 3 to decrease. When a large amount of plastic accumulates on the entire baffle 801 again After the garbage is removed, the entire liquid port 11 is opened, and the plastic is discharged into the sewage tank 10 again. The above operation is repeated, so that the plastic garbage in the water discharged by the entire drainage pump is reduced to a minimum, so that the entire city's underground drainage pump is draining water. At the same time, it can also intercept and collect plastic bags in the water, protecting the drainage pump body and the environment.

Example 2:

Since there is still filamentary garbage in the water flow, this kind of garbage can easily wrap around the rotating column of the impeller. As shown in Figure 5-8, some filamentary foreign matter comes through the liquid hole 802 on the sewage discharge mechanism 8. In the tube body 3 on one side close to the impeller, the water flows down to the baffle plate 14. The shape of the entire baffle plate 14 is as shown in Figure 6. There are multiple sets of through grooves 15 on the entire baffle plate 14. At the same time, the entire baffle plate 14 is Multiple sets of clamping posts 16 are installed on the through slot 15. The entire clamping posts 16 are installed to intercept filamentous foreign matter in the entire water flow. At the same time, a top post 18 is installed at the center of the baffle plate 14. The entire top post 18 Similar to a cone, through the installation of the top column 18, the filaments in the water are dispersed to the surrounding clamping columns 16;

A cutting mechanism 19 is installed in the tube body 3 on one side of the entire baffle 14. The entire cutting mechanism 19 is responsible for cutting off the filaments hanging on the clamping column 16 to prevent the filaments from winding around the impeller. The entire cutting mechanism 19 is divided into Two parts, one part is responsible for cutting filaments, and the other part provides the power for the rotation of the blade 194. A fixed rod 191 is installed on one side of the entire baffle plate 14, and a connecting plate 193 is installed on the front end of the entire fixed rod 191. The shape of the entire connecting plate 193 As shown in Figure 7, the entire connecting plate 193 is installed with a blade 194 corresponding to the through slot 15. At the same time, the blade 194 is prevented from being damaged by constant vibration in the through slot 15. A rubber plate 17 is installed on the entire through slot 15. The entire rubber plate 17 The hardness of the blade 194 is low and plays a role in protecting the blade 194. The entire blade 194 is rotationally connected to the connecting plate 193, but the entire blade 194 rotates on the connecting plate 193 to a small extent. The rotation setting of the blade 194 makes the entire slot 15 Even the silk can be cut;

A six-sided rotating column 195 is installed on the other side of the entire fixed rod 191. The entire six-sided rotating column 195 is shown in Figure 8. A rocking membrane 196 is evenly installed on one side of the six-sided rotating column 195. The entire rocking membrane 196 flows in the water When flowing, the entire six-sided rotating column 195 is continuously shaken by the shaking. The entire six-sided rotating column 195 is connected to the connecting plate 193 through the rotating shaft 192, so the entire connecting plate 193 will also continue to shake with the shaking of the six-sided rotating column 195. This continuously provides power for the blade 194 to cut the filament. After the entire blade 194 cuts the filament on the clamping column 16, the cut filament is discharged from the liquid outlet 20 by the impeller along the water flow, completing the drainage work of the entire drainage pump. , and also prevent foreign matter from clogging the water pump.

The above contents are only examples and descriptions of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or substitute them in similar ways, as long as they do not deviate from the structure of the invention. or beyond the scope defined by the claims, shall belong to the protection scope of the present invention.

In the description of this specification, reference to the terms "one embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the invention. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only intended to help illustrate the invention. The preferred embodiments do not describe all details, nor do they limit the invention to specific implementations. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

An urban underground drainage pump that prevents foreign matter clogging, including a base plate (1) and a pipe body (3), which is characterized in that: a motor (2) is fixed with bolts on the top side of the base plate (1), and is located at the motor (2) 2) is installed with a pipe body (3) at the output end. A liquid inlet (4) is provided on one side of the pipe body (3), and a fixed fixed pipe body (3) is evenly fixed on one side of the liquid inlet (4) through spot welding. Column (6), one end of the fixed column (6) is fixed with a vibration mechanism (5) through spot welding;

The vibration mechanism (5) includes a box (501), a sliding plate (502), a connecting cover (503), a spring (504) and a connecting shaft (505). One end of the fixed column (6) is fixed by spot welding. The box (501) has a sliding plate (502) slidably connected to the inner wall of the box (501). A connecting shaft (505) is fixed on one side of the sliding plate (502) through spot welding, and is located on the side of the connecting shaft (505). One end penetrates one side of the box (501) and extends into the tube body (3). The inner walls of both sides of the box (501) are evenly and symmetrically fixed with connection covers (503) through spot welding, and are located on the two connection covers. The opposite surface of (503) is fixed with a spring (504) through spot welding;

A sewage discharge mechanism (8) is installed on one end of the connecting shaft (505) located in the pipe body (3). The sewage discharge mechanism (8) includes a baffle (801), a liquid hole (802), and a sealing arc plate (803). ), sealing film (804), support frame (805) and support column (806). One end of the connecting shaft (505) is fixed with a baffle (801) through spot welding, and is located on one side of the baffle (801) Liquid openings (11) are evenly provided, a sealing arc plate (803) is fixed on one side of the baffle (801) by spot welding, and a sealing film (803) is fixed on one side of the sealing arc plate (803) by adhesion. 804), the inner wall of the pipe body (3) is fixed with a support frame (805) through spot welding, and a supporting column (806) is evenly fixed on one side of the support frame (805) through spot welding.
An urban underground drainage pump to prevent foreign matter clogging according to claim 1, characterized in that: a liquid opening (11) is provided on one side of the top of the pipe body (3), and the sealing arc plate (803) One side of the sealing plate is slidingly connected to the inner wall of the tube body (3), and the sealing arc plate (803) is in contact with the liquid opening (11). The resisting column (806) is provided correspondingly to the liquid opening (11).
An urban underground drainage pump that prevents foreign matter clogging according to claim 2, characterized in that: a dirt storage box (9) is fixed with bolts on the top of the pipe body (3) and is located in the dirt storage tank (9) A sewage discharge tank (10) is provided inside. A partition (13) is fixed in the sewage discharge tank (10) and located at the bottom inner wall of the sewage storage tank (9) by spot welding. The liquid opening (11) is connected to the The sewage discharging tank (10) is connected.
An urban underground drainage pump that prevents foreign matter clogging according to claim 3, characterized in that: a baffle plate (14) is fixed on the inner wall of the pipe body (3) through spot welding, and is located on the baffle plate (14). ) is symmetrically and evenly provided with through slots (15). The inner walls of both sides of the through slot (15) are evenly fixed with clamping columns (16) through spot welding. The baffle plate (14) is located on the through slot (15). ) are fixed with rubber plates (17) on both sides through adhesion, and a top post (18) is fixed at the center of the baffle plate (14) through adhesion.
An urban underground drainage pump that prevents foreign matter clogging according to claim 2, characterized in that: a cutting mechanism (19) is installed on the inner wall of the pipe body (3), and the cutting mechanism (19) includes a fixed rod ( 191), rotating shaft (192), connecting plate (193), blade (194), hexagonal rotating column (195) and rocking membrane (196). The inner wall of the tube body (3) is fixed with a fixed rod (191) through spot welding. 191), and a rotating shaft (192) is movably connected to the fixed rod (191). One end of the rotating shaft (192) is movably connected to a connecting plate (193) through a bearing, and is located on one side of the connecting plate (193) to rotate evenly. A blade (194) is connected, the other end of the rotating shaft (192) is movably connected to a six-sided rotating column (195), and a rocking film (196) is evenly fixed on one side of the six-sided rotating column (195) through adhesion.
An urban underground drainage pump that prevents foreign matter clogging according to claim 1, characterized in that: a liquid outlet (20) is provided on the other side of the pipe body (3), and a liquid outlet (20) is provided on the other side of the pipe body (3). A lock ring (7) is set on the outer wall and is located at the liquid inlet (4). A connecting pipe (12) is connected to one side of the dirt storage box (9), and one end of the connecting pipe (12) runs through the dirt storage tank. The box (9) is connected with the sewage discharge tank (10).