Novel flow control submersible sewage pump

Abstract

The application relates to the field of sewage pumps, in particular to a novel flow control submersible sewage pump, which comprises a pump body, a rotating shaft arranged in the pump body and an impeller fixedly installed on the rotating shaft, and the bottom end of the pump body is fixedly connected with a sealing cylinder; the bottom end of the sealing cylinder is provided with a screening and dividing assembly, the screening and dividing assembly is used for screening and preliminary dividing of garbage in sewage, and the screening and dividing assembly comprises a screening cylinder fixedly connected with the bottom end of the sealing cylinder, and a dividing cutter capable of moving up and down to cut is arranged in the screening cylinder. The screening and dividing assembly is arranged, so that when the sewage pump is used, the screening cylinder can screen garbage, garbage with a larger size cannot enter the screening cylinder, garbage that can enter the screening cylinder can stay in the screening cylinder for a short time, the garbage is preliminarily divided by the rotating dividing cutter, the size of the garbage is reduced, the pressure of subsequent crushing treatment of the garbage is reduced, and the garbage is conveniently discharged subsequently.

Description

Technical Field

[0001] This invention relates to the field of sewage pump technology, and in particular to a novel controlled-flow submersible sewage pump. Background Technology

[0002] A sewage pump is a type of pump that integrates the pump and motor and operates submerged in liquid. It is mainly used to transport sewage and wastewater containing solid particles, fibrous materials and other impurities. A flow-controlled submersible sewage pump is a device that integrates submersible sewage discharge and flow control functions. It achieves flow regulation through a built-in flow control device or an external control system and is suitable for municipal sewage treatment, industrial wastewater discharge, construction site drainage and other scenarios.

[0003] While most existing submersible sewage pumps can effectively handle the discharge of sewage containing solid particles or fibers, they are inadequate for discharging larger garbage in sewage, especially when dealing with sewage from sewers containing a wide variety of garbage of different sizes. This can lead to clogging of the pumps, causing them to become damaged and unable to discharge properly.

[0004] Therefore, a new type of flow-controlled submersible sewage pump is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a novel controlled-flow submersible sewage pump to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel controlled-flow submersible sewage pump, comprising a pump body, a rotating shaft disposed within the pump body, and an impeller fixedly mounted on the rotating shaft. A sealing cylinder is fixedly connected to the bottom end of the pump body. A screening and dividing assembly is provided at the bottom end of the sealing cylinder. The screening and dividing assembly is used for screening and preliminary dividing of waste in sewage. The screening and dividing assembly includes a screening cylinder fixedly connected to the bottom end of the sealing cylinder. A dividing blade capable of moving up and down to cut is provided in the screening cylinder. An anti-clogging assembly is provided at the bottom end of the screening cylinder. The anti-clogging assembly is used to prevent waste in sewage from getting stuck in the screening cylinder. The anti-clogging assembly includes a turntable disposed on the screening cylinder. A cutting blade is fixedly mounted on the turntable. A push plate is provided on one side of the cutting blade. A crushing assembly is provided in the sealing cylinder. The crushing assembly is used for crushing the waste in the screening cylinder. The crushing assembly includes a separating cylinder fixedly mounted on the screening cylinder. A plurality of crushing blades are provided in the separating cylinder.

[0007] Preferably, the bottom end of the rotating shaft is provided with a drive shaft, and a gear reduction assembly is provided between the drive shaft and the rotating shaft. The drive shaft extends to the outside of the screening cylinder and is fixedly connected to the turntable.

[0008] Preferably, the screening cylinder has several inlets and outlets, which are staggered. The inlets are used for sewage entry and waste screening.

[0009] Preferably, a corrugated cylinder for moving up and down in conjunction with the dividing blade is fixedly installed in the screening cylinder, and the corrugated cylinder is corrugated.

[0010] Preferably, a sliding column is slidably connected in the drive shaft, and the sliding column is fixedly connected to the dividing blade. A tension spring is fixedly connected between the sliding column and the turntable, and the tension spring is located in the drive shaft.

[0011] Preferably, an mounting plate is fixedly installed on the turntable, a receiving cylinder is fixedly connected to the mounting plate, a telescopic column is slidably connected in the receiving cylinder, the telescopic column is fixedly connected to the push plate, and a spring is fixedly connected between the telescopic column and the receiving cylinder.

[0012] Preferably, the screening cylinder has several inclined surfaces, and the end of the push plate is inclined to match the inclined surfaces. The inclined surfaces and the inclined pressing action are used to move the push plate up and down to push the garbage stuck in the inlet into the screening cylinder.

[0013] Preferably, the separating cylinder has several partition openings for screening the waste in the separating cylinder, the top of the separating cylinder is sealed, and the rotating shaft is rotatably connected to the separating cylinder.

[0014] Preferably, the separating cylinder is provided with a plurality of bosses, a bracket is fixedly installed on the rotating shaft, and a plurality of crushing blades are fixedly connected to the bracket, with the ends of the crushing blades located between the bosses.

[0015] The beneficial effects of this invention are:

[0016] 1. This invention, by setting up a screening and dividing component, enables the screening cylinder to screen waste when the sewage pump is in use. Larger waste cannot enter the screening cylinder, while waste that can enter the screening cylinder can stay inside for a short time and be initially divided by the rotating dividing blades, reducing the volume of waste. This reduces the pressure for subsequent waste crushing and facilitates subsequent discharge. Furthermore, the rotating dividing blades can move up and down, and the contact angle with the waste is constantly changing, increasing the direction of the shearing force and improving the ability to cut high-toughness debris, thereby enhancing the dividing effect and improving the adaptability to different types of waste.

[0017] 2. This invention, by setting up an anti-clogging component, ensures that when the screening cylinder in the screening and dividing component is screening waste, the rotation of the turntable drives the cutting blade to rotate, sweeping and pushing away the waste attached to the inlet of the screening cylinder. This prevents large-volume waste that cannot enter the screening cylinder through the inlet from accumulating at the inlet and causing blockage. Furthermore, as the push plate rotates, the expansion joint in the receiving cylinder compresses the spring, causing the push plate to move to the inlet and push into the inlet. This pushes the waste stuck in the inlet into the screening cylinder, preventing waste from getting stuck in the inlet and causing blockage, thus affecting the flow of sewage into the pump body.

[0018] 3. This invention uses a crushing component to allow waste processed by the screening and dividing component to enter the separation cylinder. After entering the separation cylinder, the waste is screened again through the dividing port. Waste that does not meet the size requirements is tightly adhered to the protrusions under the suction force generated by the sewage pump. The protrusions provide support for the waste, which facilitates the rotating shaft to drive the crushing blades to rotate and crush between the protrusions, thus improving the crushing effect. After crushing, waste that meets the size requirements enters the impeller through the dividing port, is processed, and is discharged outward. The entire sewage pump operation process can handle the discharge of sewage containing waste of different sizes without causing blockages that affect its normal use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the pump body of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0022] Figure 3 This invention relates to a novel flow-controlled submersible sewage pump. Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the screening cylinder structure of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of the screening cylinder of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic cross-sectional view of the drive shaft of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the pusher plate structure of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0027] Figure 8 This is a cross-sectional view of the housing structure of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention;

[0028] Figure 9 This is a cross-sectional view of the separator of a novel flow-controlled submersible sewage pump according to an embodiment of the present invention.

[0029] The components in the diagram are labeled as follows: 1. Pump body; 2. Rotary shaft; 3. Impeller; 4. Sealing cylinder; 5. Screening cylinder; 6. Dividing blade; 7. Rotary disc; 8. Cutting blade; 9. Push plate; 10. Separating cylinder; 11. Crushing blade; 12. Drive shaft; 13. Gear reduction assembly; 14. Inlet; 15. Outlet; 16. Corrugated cylinder; 17. Sliding column; 18. Tension spring; 19. Mounting plate; 20. Receiving cylinder; 21. Telescopic column; 22. Spring; 23. Inclined surface; 24. Separator; 25. Boss; 26. Support. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0031] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figures 1 to 9As shown in the figure, a specific embodiment of the present invention provides a novel flow-controlled submersible sewage pump, including a pump body 1, a rotating shaft 2 disposed in the pump body 1, and an impeller 3 fixedly installed on the rotating shaft 2. A sealing cylinder 4 is fixedly connected to the bottom end of the pump body 1; a screening and dividing component is provided at the bottom end of the sealing cylinder 4. The screening and dividing component is used for screening and preliminary dividing of garbage in sewage. The setting of the screening and dividing component can screen the larger garbage in the sewage during the use of the sewage pump, thereby preventing the larger garbage from entering the sewage pump. The smaller garbage that enters the sewage pump can stay briefly in the screening and dividing component and be preliminarily divided, reducing its volume. The garbage in the sewage includes melon rinds, plastic bottles, and small pieces of wood that are easy to be sucked up, etc. The screening and dividing component includes a screening cylinder 5 fixedly connected to the bottom end of the sealing cylinder 4. The screening cylinder 5 is provided with a dividing blade 6 that can move up and down to cut; an anti-clogging component is provided at the bottom end of the screening cylinder 5. The anti-clogging component is used to prevent garbage in the sewage from getting stuck in the screening cylinder 5. During the use of the sewage pump, sewage and garbage continuously pass through the screen. The waste in the screening cylinder 5 is drawn into the pump body 1, which can easily cause some waste to get stuck at the inlet of the screening cylinder 5, forming a blockage and affecting subsequent sewage discharge. The anti-clogging component can push the waste stuck at the inlet of the screening cylinder 5 into the interior of the screening cylinder 5 to prevent blockage and affect the sewage discharge effect. At the same time, it can push the larger waste that is attached to the outer surface of the screening cylinder 5, that is, the waste that is screened out, to get off the surface of the screening cylinder 5, preventing it from adhering and accumulating on the surface and affecting the sewage entering the pump body 1. The anti-clogging component includes a turntable 7 on the screening cylinder 5, on which a cutting blade 8 is fixedly installed. A push plate 9 is provided on one side of the cutting blade 8. A crushing component is provided in the sealing cylinder 4. By setting the crushing component, the waste discharged from the screening and dividing component can be further crushed and cut, so that it reaches the volume standard and is discharged into the impeller 3, and then discharged outward. The crushing component is used to crush the waste in the screening cylinder 5. The crushing component includes a separation cylinder 10 fixedly installed on the screening cylinder 5, and a number of crushing blades 11 are provided in the separation cylinder 10.

[0033] like Figures 1 to 6 As shown, specifically, the screening cylinder 5 has several inlets 14 and outlets 15, which are staggered. The inlets 14 are used for sewage entry and garbage screening. During the operation of the sewage pump, sewage gradually enters the sewage pump. When garbage of different sizes in the sewage passes through the screening cylinder 5, it is screened by the inlets 14 on the screening cylinder 5, so that larger garbage cannot enter, while relatively smaller garbage can enter the interior of the screening cylinder 5 through the inlets 14, thereby achieving preliminary screening of garbage. Due to the staggered inlets 14 and outlets 15, the flow path of garbage changes, so that the garbage entering the screening cylinder 5 through the inlets 14 will not be discharged through the outlets 15 immediately, and the garbage stays in the interior of the screening cylinder 5 for a short time.

[0034] A drive shaft 12 is provided at the bottom end of the rotating shaft 2, and a gear reduction assembly 13 is provided between the drive shaft 12 and the rotating shaft 2. The drive shaft 12 extends to the outside of the screening cylinder 5 and is fixedly connected to the turntable 7. A corrugated cylinder 16 for moving up and down in conjunction with the dividing blade 6 is fixedly installed in the screening cylinder 5, and the corrugated cylinder 16 is corrugated. A sliding column 17 is slidably connected in the drive shaft 12, and the sliding column 17 is fixedly connected to the dividing blade 6. A tension spring 18 is fixedly connected between the sliding column 17 and the turntable 7, and the tension spring 18 is located in the drive shaft 12. When the sewage pump is working, the rotating shaft 2 inside it rotates, thereby driving the drive shaft 12 and the turntable 7 at the bottom end to rotate through the gear reduction assembly 13. The rotation of the drive shaft 12 drives the sliding column 17 and the dividing blade 6 to rotate. Part of the sliding column 17 rotates in close contact with the top of the corrugated cylinder 16, and the top of the corrugated cylinder 16 is corrugated. This causes the sliding column 17 to slide upwards in the transmission shaft 12 when it rotates to the highest point of the top corrugation, and the tension spring 18 to stretch and generate a reaction force. When the sliding column 17 rotates to the bottom point of the top corrugation, it slides downwards under the reaction force of the tension spring 18. Therefore, during the cyclic rotation of the sliding column 17, it will have an up-and-down movement effect. That is, the dividing blade 6 moves up and down while rotating and dividing in the screening cylinder 5. The dividing blade 6 can divide the garbage that is briefly in the screening cylinder 5. The up-and-down reciprocating movement while rotating and dividing causes the contact angle between the dividing blade 6 and the garbage to change continuously, increasing the direction of the shearing force and improving the cutting ability of high-toughness debris, thereby enhancing the dividing effect. At the same time, the brief stay of the garbage allows the dividing blade 6 to divide it multiple times, further enhancing the dividing effect.

[0035] like Figure 7 and Figure 8As shown, specifically, a mounting plate 19 is fixedly installed on the turntable 7, and a receiving cylinder 20 is fixedly connected to the mounting plate 19. A telescopic column 21 is slidably connected in the receiving cylinder 20, and the telescopic column 21 is fixedly connected to the push plate 9. A spring 22 is fixedly connected between the telescopic column 21 and the receiving cylinder 20. Several inclined surfaces 23 are opened on the screening cylinder 5. The end of the push plate 9 is inclined to match the inclined surface 23. The inclined surface 23 and the inclined pressing action are used to push the push plate 9 up and down to push the garbage stuck in the inlet 14 into the screening cylinder 5. During the operation of the sewage pump, sewage is continuously sucked into the interior and discharged outward. During the above process, the screening cylinder 5 screens the garbage. The larger garbage is screened and located at the inlet 14. There are four places where it cannot enter, and under the suction of the sewage pump, it adheres to the inlet 14. The more garbage is screened, the more garbage adheres, and the more likely the inlet 14 will become blocked. At the same time, among the garbage passing through the inlet 14, there will inevitably be some garbage stuck in the inlet 14. At this time, as the rotating shaft 2 drives the rotating disk 7 to rotate, the rotating disk 7 can drive the cutting blade 8 to rotate. The rotating cutting blade 8 can sweep away the larger garbage attached to the inlet 14, thereby removing it from the screening cylinder 5 and preventing garbage from accumulating and affecting the sewage entering the sewage pump. At the same time, the cutting blade 8 can cut the garbage stuck in the inlet 14, so that the garbage stuck outside the inlet 14 is cut off and pushed away.

[0036] In the above process, the rotation of turntable 7 drives the mounting plate 19 to rotate, which in turn drives the push plate 9 to rotate through the telescopic column 21 and the receiving cylinder 20. Under the pushing force of spring 22, the telescopic column 21 pushes the push plate 9 to closely adhere to the screening cylinder 5 and rotate with the mounting plate 19. When the push plate 9 moves to the inlet 14, it is unobstructed and moves into the inlet 14 under the pushing force of spring 22. The movement of spring 22 into the inlet 14 can push the garbage stuck in the inlet 14 into the interior of the screening cylinder 5 and separate it, thus avoiding the situation where garbage gets stuck in the inlet 14 and causes blockage. When the push plate 9 continues to rotate, when the end of the push plate 9 moves to the inclined surface 23, because the end of the push plate 9 is inclined... The inclined arrangement of surface 23 allows the push plate 9 and telescopic column 21 to compress the spring 22 and move into the receiving cylinder 20 under the action of the inclined surface 23. This causes the push plate 9 to rotate again in close contact with the screening cylinder 5 until it moves to the next inlet 14. Then, the push plate 9 pushes the waste again according to the above principle. The gear reduction assembly 13 reduces the rotation speed of the drive shaft 12 compared to the rotating shaft 2. Since large-volume waste in sewage is not always present, it is not necessary to use a high rotation speed to drive the rotation of the dividing blade 6 and the turntable 7 to meet the cutting requirements. On the contrary, the reduced rotation speed of the dividing blade 6 and the like can reduce the friction frequency and impact force between the dividing blade 6 and the impurities, and extend the service life of the blade head.

[0037] like Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown, specifically, the separation cylinder 10 has several dividing ports 24, which are used for screening the waste in the separation cylinder 10. The top of the separation cylinder 10 is sealed, and the rotating shaft 2 is rotatably connected to the separation cylinder 10. The separation cylinder 10 has several bosses 25, and a bracket 26 is fixedly installed on the rotating shaft 2. Several crushing blades 11 are fixedly connected to the bracket 26, and the ends of the crushing blades 11 are located between the bosses 25. In the above process, the waste in the screening cylinder 5 is divided and enters the separation cylinder 10 along with the sewage through the outlet 15. Since the top of the separation cylinder 10 is sealed, the sewage and the divided waste can only enter the impeller 3 in the pump body 1 through the dividing ports 24. The setting of the dividing ports 24 can further screen the waste in the sewage, so that waste of the required size can enter through the dividing ports 24. The waste enters the impeller 3 and is then discharged outwards. Waste that does not meet the size requirements is attracted to the boss 25 by the suction force generated in the pump body 1. At the same time, the rotation of the shaft 2 drives the support 26 to rotate, causing the crushing blades 11 on the support 26 to rotate between the bosses 25. This crushes the waste that is tightly attached to the bosses 25. The fact that the waste is tightly attached to the bosses 25 provides a certain support effect for the waste, making it easier for the crushing blades 11 to crush and cut the waste, greatly improving the crushing effect. After the crushed waste meets the discharge size requirements, it enters the impeller 3 through the separator 24 and is discharged outwards along with the sewage under the action of the impeller 3. Therefore, it can be seen that during the entire process of sewage and waste entering and leaving the sewage pump, the waste will not cause blockage and affect its normal operation.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention includes the claims being limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0039] This invention is intended to cover all such substitutions, modifications, and alterations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A flow-controlled submersible sewage pump, comprising a pump body (1), a rotating shaft (2) disposed in the pump body (1), and an impeller (3) fixedly mounted on the rotating shaft (2), characterized in that, A sealing cylinder (4) is fixedly connected to the bottom end of the pump body (1). The bottom end of the sealing cylinder (4) is provided with a screening and dividing component. The screening and dividing component is used for screening and preliminary dividing of garbage in sewage. The screening and dividing component includes a screening cylinder (5) fixedly connected to the bottom end of the sealing cylinder (4). The screening cylinder (5) is provided with a dividing blade (6) that can move up and down to cut. The bottom end of the screening cylinder (5) is provided with an anti-clogging component. The anti-clogging component is used to prevent garbage in the sewage from getting stuck in the screening cylinder (5). The anti-clogging component includes a turntable (7) on the screening cylinder (5). A cutting blade (8) is fixedly installed on the turntable (7). A push plate (9) is provided on one side of the cutting blade (8). The sealing cylinder (4) is provided with a crushing component, which is used to crush the garbage in the screening cylinder (5). The crushing component includes a separation cylinder (10) fixedly installed on the screening cylinder (5), and the separation cylinder (10) is provided with a plurality of crushing blades (11). The screening cylinder (5) is provided with a number of inlets (14) and outlets (15), and the inlets (14) and outlets (15) are staggered. The inlets (14) are used for sewage to enter and for screening garbage. An installation plate (19) is fixedly installed on the turntable (7). A receiving cylinder (20) is fixedly connected to the installation plate (19). A telescopic column (21) is slidably connected in the receiving cylinder (20). The telescopic column (21) is fixedly connected to the push plate (9). A spring (22) is fixedly connected between the telescopic column (21) and the receiving cylinder (20). The screening cylinder (5) has several inclined surfaces (23). The end of the push plate (9) is set in an inclined shape to match the inclined surface (23). The inclined surface (23) and the inclined extrusion are used to push the push plate (9) up and down to push the garbage stuck in the inlet (14) into the screening cylinder (5).

2. The submersible sewage pump with flow control according to claim 1, characterized in that, The bottom end of the rotating shaft (2) is provided with a transmission shaft (12), and a gear reduction assembly (13) is provided between the transmission shaft (12) and the rotating shaft (2). The transmission shaft (12) extends to the outside of the screening cylinder (5) and is fixedly connected to the turntable (7).

3. The submersible sewage pump with flow control according to claim 1, characterized in that, The screening cylinder (5) is fixedly installed with a corrugated cylinder (16) for moving up and down in conjunction with the dividing blade (6), and the corrugated cylinder (16) is corrugated.

4. A flow-controlled submersible sewage pump according to claim 2, characterized in that, A sliding column (17) is slidably connected in the drive shaft (12), and the sliding column (17) is fixedly connected to the dividing blade (6). A tension spring (18) is fixedly connected between the sliding column (17) and the turntable (7), and the tension spring (18) is located in the drive shaft (12).

5. A flow-controlled submersible sewage pump according to claim 1, characterized in that, The separation cylinder (10) is provided with several partition openings (24), which are used for screening the garbage in the separation cylinder (10). The top of the separation cylinder (10) is sealed, and the rotating shaft (2) is rotatably connected to the separation cylinder (10).

6. A flow-controlled submersible sewage pump according to claim 1, characterized in that, The separation cylinder (10) is provided with several bosses (25), a bracket (26) is fixedly installed on the rotating shaft (2), and several crushing blades (11) are fixedly connected to the bracket (26). The ends of the crushing blades (11) are located between the bosses (25).

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