Cutting type sewage pump with flow adjusting function

Abstract

The invention relates to the technical field of sewage treatment, and discloses a cutting type sewage pump with a flow regulation function, which comprises a pump shell, the bottom of the pump shell is fixedly connected with a pump frame, the bottom of the pump shell is opened, the cutting type sewage pump also comprises a cutting conveying mechanism, and the cutting conveying mechanism comprises a driving motor, a discharge pipe, a fixed plate, a rotating shaft, a cutting impeller and a conveying assembly, the top of the driving motor is fixedly connected to the top of the inner wall of the pump shell, one end of the discharging pipe communicates with one side of the outer wall of the pump shell, the device is placed in a drainage pool, the driving motor is started, the rotating speed can be controlled through the driving motor, and therefore the flow speed of sewage is adjusted; the driving motor drives the rotating shaft to rotate, the rotating shaft drives the cutting impeller to rotate, in the rotating process of the cutting impeller, sewage in the drainage pool enters the pump shell, the sewage enters the discharging pipe through the pump shell, and the sewage is conveyed.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a cutting type sewage pump with a flow regulating function. Background Art

[0002] A cutting type sewage pump with flow regulation function is a pump specially designed for sewage treatment, which combines cutting function and flow regulation function, wherein the cutting function: the sewage pump is equipped with a cutting device for cutting solid impurities that may exist in the sewage, such as branches, plastic bags, textiles, etc. These impurities can clog the impeller of a traditional pump, while the cutting type sewage pump ensures that it is not easy to clog during the pumping process through the cutting function.

[0003] When the existing sewage pump is transporting sewage, the sewage may contain large debris, and the impeller may be damaged due to ineffective cutting or excessive impact, causing the impeller to be blocked, affecting the circulation efficiency of the sewage. Summary of the invention

[0004] The object of the present invention is to provide a cutting type sewage pump with a flow regulating function to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a cutting type sewage pump with a flow regulating function, comprising a pump casing, the bottom of which is fixedly connected to a pump frame, the bottom of which is open, and also comprising a cutting conveying mechanism, the cutting conveying mechanism comprising a driving motor, a discharge pipe, a fixed plate, a rotating shaft, a cutting impeller, and a conveying assembly, the top of the driving motor is fixedly connected to the top of the inner wall of the pump casing, one end of the discharge pipe is connected to one side of the outer wall of the pump casing, the outer wall of the fixed plate is fixedly connected to the inner wall of the pump casing, the top of the fixed plate is fixedly connected to the bottom of the driving motor, the top of the rotating shaft is fixedly connected to the bottom of the driving motor, and the inner wall of the cutting impeller is fixedly connected to the top outer wall of the rotating shaft.

[0006] Furthermore, the conveying assembly includes a hexagonal filter housing fixedly connected to the bottom of the inner wall of the pump housing, and a reciprocating screw is fixedly connected to the outer wall of the bottom end of the rotating shaft, and the reciprocating screw is arranged inside the hexagonal filter housing.

[0007] Furthermore, the outer wall of the bottom end of the reciprocating screw is threadedly connected with a threaded hexagonal plate, the outer wall of the threaded hexagonal plate is slidably connected to the inner cavity of the hexagonal filter housing, and the outer wall of the threaded hexagonal plate is respectively fixedly connected with six connecting rods.

[0008] Furthermore, the outer wall of one end of the connecting rod is arranged at the inner wall of the hexagonal filter housing, and the end of the connecting rod away from the threaded hexagonal plate is fixedly connected to the blocking plate, and the outer wall of the blocking plate is slidably connected to the inner wall of the pump housing.

[0009] Furthermore, a cutting assembly is provided on the outer wall of the rotating shaft, and the cutting assembly includes a main gear fixedly connected to the outer wall of the rotating shaft near one end of the reciprocating screw rod, and the outer walls of the main gear are respectively meshed with four secondary gears, and the bottom of the secondary gear is rotatably connected to the top of the hexagonal filter shell, and the inner wall of the secondary gear is fixedly connected to a rotating rod, and one end of the rotating rod passes through the hexagonal filter shell and extends to the interior of the hexagonal filter shell.

[0010] Furthermore, the outer wall of the rotating rod is fixedly connected to a cross sleeve, the outer wall of one end of the cross sleeve is slidably connected to a rotating sleeve, the outer wall of the rotating sleeve is rotatably connected to the inner wall of the threaded hexagonal plate, four circular grooves are respectively provided at the bottom of the threaded hexagonal plate, the inner wall of the circular groove is slidably connected to a slider, the bottom of the slider is fixedly connected to a cutting piece, and the inner wall of the cutting piece is slidably connected to the outer wall of one end of the cross sleeve.

[0011] Furthermore, a positioning assembly is provided at the bottom of the fixed plate, and the positioning assembly includes a rotating shell rotatably connected to the bottom of the fixed plate, and eight concave sliding frames are respectively penetrated and slidably connected to the bottom of the inner wall of the rotating shell, and a spring is fixedly connected to the top of the concave sliding frame.

[0012] Furthermore, the top of the spring is fixedly connected to the top of the inner wall of the rotating shell, one side of the top of the concave sliding frame is rotatably connected to a rotating bar, the end of the rotating bar away from the concave sliding frame is rotatably connected to an L-shaped rod, and eight sliding grooves are respectively opened on the top of the inner wall of the rotating shell, and the top outer wall of the L-shaped rod is slidably connected to the inner wall of the sliding groove.

[0013] Furthermore, eight limiting holes are respectively opened at the bottom of the rotating shell, the outer wall of one end of the L-shaped rod is slidably connected to the inner wall of the limiting hole, the bottom of the L-shaped rod is fixedly connected with a protective plate, and the inner wall of the protective plate is slidably connected to the outer wall of the cutting impeller.

[0014] Furthermore, an impact assembly is provided on one side of the protective plate, and the impact assembly includes a sliding frame that penetrates and is slidably connected to both ends of one side of the protective plate, one end of the sliding frame is fixedly connected to an impact plate, and a side of the impact plate close to the sliding frame is fixedly connected to a return spring, and one end of the return spring is fixedly connected to one side of the outer wall of the protective plate.

[0015] The present invention has the following beneficial effects: (1) The present invention places the device inside the drainage pool and starts the driving motor. The rotation rate can be controlled by setting the driving motor, so as to adjust the flow rate of sewage. The driving motor drives the rotating shaft to rotate, and the rotating shaft drives the cutting impeller to rotate. During the rotation of the cutting impeller, the sewage inside the drainage pool enters the inside of the pump casing, and the sewage enters the inside of the discharge pipe through the pump casing, so that the sewage is transported. When the rotating shaft rotates, the rotating shaft drives the reciprocating screw to rotate. It is limited by the hexagonal filter shell, and the reciprocating screw drives the threaded hexagonal plate to move downward. During the descending process of the threaded hexagonal plate, large debris can be pushed outward to prevent large debris from entering the inside of the pump casing, thereby improving the flow efficiency of sewage.

[0016] (2) In the present invention, the rotating shaft drives the main gear to rotate, the main gear drives the secondary gear to rotate, the secondary gear drives the rotating rod to rotate, the rotating rod drives the cross sleeve to rotate, the cross sleeve drives the cutting piece to rotate, and due to the setting of the circular groove, the cutting piece drives the slider to rotate along the inner wall of the circular groove, so that the cutting piece can move with the threaded hexagonal plate. When the cutting piece descends and rotates, it can cut and crush large debris, which facilitates the flow of debris in the sewage and further reduces the blockage phenomenon during the flow of sewage.

[0017] (3) In the present invention, when the reciprocating screw is set, the reciprocating screw can drive the threaded hexagonal plate to perform reciprocating lifting and lowering movements. When the threaded hexagonal plate moves upward, the outer wall of the threaded hexagonal plate will come into contact with the inner wall of the hexagonal filter shell, and the inner wall of the hexagonal filter shell will be scraped to prevent impurities from adhering to the inside of the hexagonal filter shell, thereby improving the effect of sewage circulation. At the same time, the threaded hexagonal plate drives the connecting rod to move upward, and the connecting rod drives the sealing plate to move upward. During the upward movement of the sealing plate, the connection between the discharge pipe and the pump shell will be blocked, so that the mixture of sewage and impurities can be cut by the impeller for a longer time, thereby improving the effect of impurity cutting and reducing the blockage phenomenon caused by sewage circulation.

[0018] (4) In the present invention, when the blocking plate moves up, the blocking plate will come into contact with the bottom of the concave sliding frame, squeezing the concave sliding frame to move the concave sliding frame upward, and the concave sliding frame drives the rotating bar to move upward. Limited by the sliding groove, the rotating bar drives the L-shaped rod to slide along the inner wall of the sliding groove, and the L-shaped rod drives the protective plate to move. During the movement of the protective plate, the blades of the cutting impeller will come into sliding contact, thereby preventing the blades of the cutting impeller from slightly bending after the cutting impeller has been cutting for a long time. Through the reciprocating movement of the protective plate, the blades of the cutting impeller can be clamped and shaped, thereby improving the working stability of the cutting impeller and the side flow efficiency of the sewage. When the protective plate moves, the protective plate drives the sliding frame to move, and the sliding frame drives the impact plate to move. During the movement of the impact plate, the impact plate will collide with the outer wall of the shaft core of the cutting impeller, thereby preventing small debris from adhering to the outer wall of the shaft core of the cutting impeller and the side working stability of the cutting impeller is improved.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall top view structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the blocking plate of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the threaded hexagonal plate of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the pump casing of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the impeller cut in the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the sliding frame of the present invention; Figure 8 For the present invention Figure 3 A magnified view of middle; Fig. 9 For the present invention Figure 6 Enlarged view of B.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1, pump housing; 2, pump frame; 3, cutting and conveying mechanism; 31, driving motor; 32, discharge pipe; 33, fixing plate; 34, rotating shaft; 35, cutting impeller; 36, conveying assembly; 37, cutting assembly; 38, positioning assembly; 39, impact assembly; 361, hexagonal filter housing; 362, reciprocating screw rod; 363, threaded hexagonal plate; 364, connecting rod; 365, blocking plate; 371, main gear ; 372, secondary gear; 373, rotating rod; 374, cross sleeve; 375, rotating sleeve; 376, circular groove; 377, slider; 378, cutting piece; 381, rotating shell; 382, ​​concave sliding frame; 383, spring; 384, rotating bar; 385, L-shaped rod; 386, slide groove; 387, limiting hole; 388, protective plate; 391, sliding frame; 392, impact plate; 393, return spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1, please refer to Figure 1 - Fig. 9 As shown, the present invention is a cutting type sewage pump with flow regulating function, comprising a pump housing 1, a pump frame 2 is fixedly connected to the bottom of the pump housing 1, and the bottom of the pump housing 1 is open. The cutting and conveying mechanism 3 includes a driving motor 31, a discharge pipe 32, a fixing plate 33, a rotating shaft 34, and a cutting impeller 35. The device is placed inside the drainage pool, and the driving motor 31 is started. The rotation rate can be controlled by the setting of the driving motor 31, so as to adjust the flow rate of the sewage. The driving motor 31 drives the rotating shaft 34 to rotate, and the rotating shaft 34 drives the cutting impeller 35 to rotate. During the rotation of the cutting impeller 35, the sewage inside the drainage pool enters the inside of the pump casing 1, and the sewage enters the inside of the discharge pipe 32 through the pump casing 1, so that the sewage is transported, and the conveying component 36; The top of the driving motor 31 is fixedly connected to the top of the inner wall of the pump casing 1, one end of the discharge pipe 32 is connected to one side of the outer wall of the pump casing 1, the outer wall of the fixing plate 33 is fixedly connected to the inner wall of the pump casing 1, the top of the fixing plate 33 is fixedly connected to the bottom of the driving motor 31, the top of the rotating shaft 34 is fixedly connected to the bottom of the driving motor 31, and the inner wall of the cutting impeller 35 is fixedly connected to the outer wall of the top end of the rotating shaft 34.

[0025] The conveying assembly 36 includes a hexagonal filter shell 361 fixedly connected to the bottom of the inner wall of the pump housing 1. When the reciprocating screw 362 is set, the reciprocating screw 362 can drive the threaded hexagonal plate 363 to perform reciprocating lifting and lowering movements. When the threaded hexagonal plate 363 moves upward, the outer wall of the threaded hexagonal plate 363 will contact the inner wall of the hexagonal filter shell 361, and the inner wall of the hexagonal filter shell 361 will be scraped to prevent impurities from adhering to the inside of the hexagonal filter shell 361, thereby improving the sewage circulation effect. The outer wall of the bottom end of the rotating shaft 34 is fixedly connected with the reciprocating screw 362, and the reciprocating screw 362 is set inside the hexagonal filter shell 361.

[0026] The outer wall of the bottom end of the reciprocating screw 362 is threadedly connected with a threaded hexagonal plate 363. During the rotation of the rotating shaft 34, the rotating shaft 34 drives the reciprocating screw 362 to rotate. Limited by the hexagonal filter housing 361, the reciprocating screw 362 drives the threaded hexagonal plate 363 to descend. During the descent of the threaded hexagonal plate 363, large debris can be pushed outward to prevent large debris from entering the interior of the pump housing 1, thereby improving the circulation efficiency of sewage. The outer wall of the threaded hexagonal plate 363 is slidably connected to the inner cavity of the hexagonal filter housing 361, and the outer wall of the threaded hexagonal plate 363 is fixedly connected with six connecting rods 364 respectively.

[0027] The outer wall of one end of the connecting rod 364 is arranged on the inner wall of the hexagonal filter housing 361 , and the end of the connecting rod 364 away from the threaded hexagonal plate 363 is fixedly connected with a blocking plate 365 , and the outer wall of the blocking plate 365 is slidably connected to the inner wall of the pump housing 1 .

[0028] The outer wall of the rotating shaft 34 is provided with a cutting assembly 37, the rotating shaft 34 drives the main gear 371 to rotate, the main gear 371 drives the secondary gear 372 to rotate, the secondary gear 372 drives the rotating rod 373 to rotate, the rotating rod 373 drives the cross sleeve 374 to rotate, the cross sleeve 374 drives the cutting piece 378 to rotate, and the cutting piece 378 drives the slider 377 to rotate along the inner wall of the circular groove 376 due to the setting of the circular groove 376, so that the cutting piece 378 can move with the threaded hexagonal plate 363. When the cutting piece 378 descends and rotates, During the process, large debris can be cut and crushed, which facilitates the circulation of debris in sewage and further reduces the blockage phenomenon during sewage circulation. The cutting assembly 37 includes a main gear 371 fixedly connected to the outer wall of the rotating shaft 34 near one end of the reciprocating screw rod 362, and the outer wall of the main gear 371 is respectively meshed with four secondary gears 372, and the bottom of the secondary gear 372 is rotatably connected to the top of the hexagonal filter shell 361. The inner wall of the secondary gear 372 is fixedly connected with a rotating rod 373, and one end of the rotating rod 373 penetrates the hexagonal filter shell 361 and extends to the interior of the hexagonal filter shell 361.

[0029] The outer wall of the rotating rod 373 is fixedly connected to a cross sleeve 374, and the outer wall of one end of the cross sleeve 374 is slidably connected to a rotating sleeve 375. The outer wall of the rotating sleeve 375 is rotatably connected to the inner wall of the threaded hexagonal plate 363. Four circular grooves 376 are respectively provided at the bottom of the threaded hexagonal plate 363. The inner wall of the circular groove 376 is slidably connected to a slider 377. The bottom of the slider 377 is fixedly connected to a cutting piece 378. The inner wall of the cutting piece 378 is slidably connected to the outer wall of one end of the cross sleeve 374.

[0030] In embodiment 2, a positioning assembly 38 is provided at the bottom of the fixed plate 33. When the blocking plate 365 moves upward, the blocking plate 365 will contact the bottom of the concave sliding frame 382, ​​squeeze the concave sliding frame 382, ​​and move the concave sliding frame 382 upward. The concave sliding frame 382 drives the rotating bar 384 to move upward. Limited by the sliding groove 386, the rotating bar 384 drives the L-shaped rod 385 to slide along the inner wall of the sliding groove 386, and the L-shaped rod 385 drives the protective plate 388 to move. During the movement of the protective plate 388, it will come into sliding contact with the blades of the cutting impeller 35 to prevent the blades of the cutting impeller 35 from slightly bending after the cutting impeller 35 has been cutting for a long time. The positioning assembly 38 includes a rotating shell 381 rotatably connected to the bottom of the fixed plate 33, and the bottom of the inner wall of the rotating shell 381 are respectively penetrated and slidably connected with eight concave sliding frames 382, ​​and the top of the concave sliding frame 382 is fixedly connected with a spring 383.

[0031] The top of the spring 383 is fixedly connected to the top of the inner wall of the rotating shell 381, and the top side of the concave sliding frame 382 is rotatably connected to a rotating bar 384. The end of the rotating bar 384 away from the concave sliding frame 382 is rotatably connected to an L-shaped rod 385. Eight sliding grooves 386 are respectively opened on the top of the inner wall of the rotating shell 381, and the top outer wall of the L-shaped rod 385 is slidably connected to the inner wall of the sliding groove 386.

[0032] Eight limiting holes 387 are respectively opened at the bottom of the rotating shell 381, and the outer wall of one end of the L-shaped rod 385 is slidably connected to the inner wall of the limiting hole 387. The bottom of the L-shaped rod 385 is fixedly connected with a protective plate 388, and the inner wall of the protective plate 388 is slidably connected to the outer wall of the cutting impeller 35.

[0033] A collision assembly 39 is provided on one side of the protective plate 388, and the collision assembly 39 includes a sliding frame 391 that penetrates and is slidably connected to both ends of one side of the protective plate 388, one end of the sliding frame 391 is fixedly connected to an impact plate 392, and the side of the impact plate 392 close to the sliding frame 391 is fixedly connected to a return spring 393, and one end of the return spring 393 is fixedly connected to one side of the outer wall of the protective plate 388. Through the reciprocating movement of the protective plate 388, the blades of the cutting impeller 35 can be clamped and shaped, thereby improving the working stability of the cutting impeller 35 and laterally improving the circulation efficiency of sewage. When the protective plate 388 moves, the protective plate 388 drives the sliding frame 391 to move, and the sliding frame 391 drives the impact plate 392 to move. During the movement, the impact plate 392 will collide with the outer wall of the shaft core of the cutting impeller 35 to prevent small debris from adhering to the outer wall of the shaft core of the cutting impeller 35, thereby laterally improving the working stability of the cutting impeller 35.

[0034] When in use, the device is placed inside the drainage pool, and the drive motor 31 is started. The rotation rate can be controlled by the setting of the drive motor 31, so as to adjust the flow rate of the sewage. The drive motor 31 drives the rotating shaft 34 to rotate, and the rotating shaft 34 drives the cutting impeller 35 to rotate. During the rotation of the cutting impeller 35, the sewage inside the drainage pool enters the inside of the pump casing 1, and the sewage enters the inside of the discharge pipe 32 through the pump casing 1, so that the sewage is transported. When the rotating shaft 34 rotates, the rotating shaft 34 drives the reciprocating screw 362 to rotate. Limited by the hexagonal filter housing 361, the reciprocating screw 362 drives the threaded hexagonal plate 363 to descend. During the descent of the threaded hexagonal plate 363, large debris can be pushed outward to prevent large debris from entering the inside of the pump casing 1, thereby improving the circulation efficiency of the sewage.

[0035] The rotating shaft 34 drives the main gear 371 to rotate, the main gear 371 drives the secondary gear 372 to rotate, the secondary gear 372 drives the rotating rod 373 to rotate, the rotating rod 373 drives the cross sleeve 374 to rotate, the cross sleeve 374 drives the cutting piece 378 to rotate, and due to the setting of the circular groove 376, the cutting piece 378 drives the slider 377 to rotate along the inner wall of the circular groove 376, so that the cutting piece 378 can move with the threaded hexagonal plate 363. When the cutting piece 378 descends and rotates, it can cut and crush large debris, facilitate the circulation of debris in the sewage, and further reduce the blockage phenomenon during the circulation of sewage.

[0036] When the reciprocating screw rod 362 is set, the reciprocating screw rod 362 can drive the threaded hexagonal plate 363 to perform reciprocating lifting and lowering motion. When the threaded hexagonal plate 363 moves upward, the outer wall of the threaded hexagonal plate 363 will come into contact with the inner wall of the hexagonal filter housing 361, and the inner wall of the hexagonal filter housing 361 will be scraped to prevent impurities from adhering to the inside of the hexagonal filter housing 361, thereby improving the effect of sewage circulation. At the same time, the threaded hexagonal plate 363 drives the connecting rod 364 to move upward, and the connecting rod 364 drives the blocking plate 365 to move upward. During the upward movement of the blocking plate 365, the connection between the discharge pipe 32 and the pump housing 1 will be blocked, so that the mixture of sewage and impurities can be cut by the cutting impeller 35 for a longer time, thereby improving the effect of impurity cutting and reducing the blockage phenomenon caused by sewage circulation.

[0037] When the blocking plate 365 moves upward, the blocking plate 365 will come into contact with the bottom of the concave sliding frame 382, ​​squeezing the concave sliding frame 382 to move upward, and the concave sliding frame 382 drives the rotating bar 384 to move upward. The rotating bar 384 is limited by the sliding groove 386 and drives the L-shaped rod 385 to slide along the inner wall of the sliding groove 386. The L-shaped rod 385 drives the protective plate 388 to move. The protective plate 388 will come into sliding contact with the blades of the cutting impeller 35 during the movement, so as to prevent the cutting impeller 35 from cutting for a long time. The blades of the cutting impeller 35 are slightly bent. The reciprocating movement of the protective plate 388 can clamp and shape the blades of the cutting impeller 35, thereby improving the working stability of the cutting impeller 35 and indirectly improving the circulation efficiency of the sewage. When the protective plate 388 moves, the protective plate 388 drives the sliding frame 391 to move, and the sliding frame 391 drives the impact plate 392 to move. During the movement of the impact plate 392, it will collide with the outer wall of the shaft core of the cutting impeller 35 to prevent small debris from adhering to the outer wall of the shaft core of the cutting impeller 35, thereby indirectly improving the working stability of the cutting impeller 35.

[0038] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cutting-type sewage pump with flow regulating function, comprising a pump housing (1), characterized in that: The bottom of the pump housing (1) is fixedly connected to a pump frame (2), and the bottom of the pump housing (1) is open; It also includes a cutting and conveying mechanism (3), wherein the cutting and conveying mechanism (3) includes a driving motor (31), a discharge pipe (32), a fixing plate (33), a rotating shaft (34), a cutting impeller (35), and a conveying assembly (36); The top of the driving motor (31) is fixedly connected to the top of the inner wall of the pump casing (1); one end of the discharge pipe (32) is connected to one side of the outer wall of the pump casing (1); the outer wall of the fixing plate (33) is fixedly connected to the inner wall of the pump casing (1); the top of the fixing plate (33) is fixedly connected to the bottom of the driving motor (31); the top of the rotating shaft (34) is fixedly connected to the bottom of the driving motor (31); and the inner wall of the cutting impeller (35) is fixedly connected to the outer wall of the top end of the rotating shaft (34).

2. A cutting type sewage pump with flow regulating function according to claim 1, characterized in that: The conveying assembly (36) comprises a hexagonal filter housing (361) fixedly connected to the bottom of the inner wall of the pump housing (1); a reciprocating screw rod (362) is fixedly connected to the outer wall of the bottom end of the rotating shaft (34); and the reciprocating screw rod (362) is arranged inside the hexagonal filter housing (361).

3. A cutting type sewage pump with flow regulating function according to claim 2, characterized in that: The outer wall of the bottom end of the reciprocating screw rod (362) is threadedly connected to a threaded hexagonal plate (363), the outer wall of the threaded hexagonal plate (363) is slidably connected to the inner cavity of the hexagonal filter housing (361), and the outer wall of the threaded hexagonal plate (363) is respectively fixedly connected to six connecting rods (364).

4. The cutting type sewage pump with flow regulating function according to claim 3, characterized in that: The outer wall of one end of the connecting rod (364) is arranged on the inner wall of the hexagonal filter housing (361), and the end of the connecting rod (364) away from the threaded hexagonal plate (363) is fixedly connected to a blocking plate (365), and the outer wall of the blocking plate (365) is slidably connected to the inner wall of the pump housing (1).

5. The cutting type sewage pump with flow regulating function according to claim 4, characterized in that: The outer wall of the rotating shaft (34) is provided with a cutting assembly (37), and the cutting assembly (37) comprises a main gear (371) fixedly connected to the outer wall of the rotating shaft (34) close to one end of the reciprocating screw rod (362), and the outer wall of the main gear (371) is respectively meshed with four secondary gears (372), and the bottom of the secondary gear (372) is rotatably connected to the top of the hexagonal filter housing (361), and the inner wall of the secondary gear (372) is fixedly connected to a rotating rod (373), and one end of the rotating rod (373) penetrates the hexagonal filter housing (361) and extends to the inside of the hexagonal filter housing (361).

6. The cutting type sewage pump with flow regulating function according to claim 5, characterized in that: The outer wall of the rotating rod (373) is fixedly connected to a cross sleeve (374), and the outer wall of one end of the cross sleeve (374) is slidably connected to a rotating sleeve (375). The outer wall of the rotating sleeve (375) is rotatably connected to the inner wall of the threaded hexagonal plate (363). Four circular grooves (376) are respectively formed at the bottom of the threaded hexagonal plate (363). The inner walls of the circular grooves (376) are slidably connected to a slider (377). The bottom of the slider (377) is fixedly connected to a cutting piece (378), and the inner wall of the cutting piece (378) is slidably connected to the outer wall of one end of the cross sleeve (374).

7. The cutting type sewage pump with flow regulating function according to claim 6, characterized in that: A positioning assembly (38) is provided at the bottom of the fixed plate (33), and the positioning assembly (38) comprises a rotating shell (381) rotatably connected to the bottom of the fixed plate (33), eight concave sliding frames (382) respectively penetrate through and are slidably connected to the bottom of the inner wall of the rotating shell (381), and a spring (383) is fixedly connected to the top of the concave sliding frame (382).

8. The cutting type sewage pump with flow regulating function according to claim 7, characterized in that: The top of the spring (383) is fixedly connected to the top of the inner wall of the rotating shell (381); one side of the top of the concave sliding frame (382) is rotatably connected to a rotating bar (384); one end of the rotating bar (384) away from the concave sliding frame (382) is rotatably connected to an L-shaped rod (385); eight sliding grooves (386) are respectively provided on the top of the inner wall of the rotating shell (381); and the outer wall of the top of the L-shaped rod (385) is slidably connected to the inner wall of the sliding groove (386).

9. The cutting type sewage pump with flow regulating function according to claim 8, characterized in that: Eight limiting holes (387) are respectively formed at the bottom of the rotating shell (381); the outer wall of one end of the L-shaped rod (385) is slidably connected to the inner wall of the limiting hole (387); a protective plate (388) is fixedly connected to the bottom of the L-shaped rod (385); and the inner wall of the protective plate (388) is slidably connected to the outer wall of the cutting impeller (35).

10. The cutting type sewage pump with flow regulating function according to claim 9, characterized in that: An impact assembly (39) is provided on one side of the protective plate (388), and the impact assembly (39) comprises a sliding frame (391) penetrating and slidably connected to both ends of one side of the protective plate (388), one end of the sliding frame (391) is fixedly connected to an impact plate (392), a side of the impact plate (392) close to the sliding frame (391) is fixedly connected to a return spring (393), and one end of the return spring (393) is fixedly connected to one side of the outer wall of the protective plate (388).

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