A split sewage pump

Abstract

The present invention relates to the technical field of sewage pumps, and specifically to a split sewage pump, comprising a mounting base, an upper end face of the mounting base being fixedly connected with a connecting base and a pump body, an upper end face of the connecting base being fixedly connected with a driving motor, supporting frames being fixedly connected with the connecting base and opposite side walls of the pump body, a plurality of circumferentially arranged retaining frames being fixedly connected between two of the supporting frames, a mounting end cover being fixedly connected with a side wall at the right end of the pump body by a plurality of bolts, a conveying chamber being provided in the pump body, a fan blade being rotatably connected in the conveying chamber, an intercepting mechanism being provided in conjunction with structures such as a transmission shaft, a retaining frame and a driving motor, so that when the pump body is pumping sewage, large-volume impurities in the sewage are blocked on the left side of the fan blade, so as to avoid direct contact between the impurities and the fan blade, which affects the rotation of the fan blade, and at the same time, the cleaning mechanism is cooperated to clean the blocking net, so as to prevent the impurities from clogging the blocking net and affecting the normal suction process of the water pump.

Description

Technical Field

[0001] The invention relates to the technical field of sewage pumps, in particular to a split type sewage pump. Background Art

[0002] Sewage pump is a kind of centrifugal impurity pump, with many forms: submersible and dry. The most commonly used submersible pump is QW submersible sewage pump, and the most common dry sewage pumps are W horizontal sewage pump and WL vertical sewage pump. It is mainly used to transport urban sewage, feces or liquid containing fibers. Paper scraps and other solid particles, usually the temperature of the transported medium is not more than 80℃.

[0003] The existing patent (publication number: CN108916065A) discloses a split sewage pump body, including a first motor and a base, a first support plate is welded below the first motor, an extension shaft is inserted from top to bottom inside the first motor, a bearing is welded in the middle of the first support plate, and the extension shaft passes through the middle of the bearing, a rotating shaft is fixed circumferentially near the top of the upper part of the extension shaft, a coupling is fixed in the middle position of the rotating shaft, an upper bearing is fixed near the bottom of the extension shaft, an upper bearing seat is welded on the side of the upper bearing away from the extension shaft, a support tube is welded below the upper bearing seat, blades are welded on the second connecting rod and the third connecting rod, and the blades of the second connecting rod and the third connecting rod are meshed, when the first motor rotates and the water pump starts to pump water, garbage passes through the inside of the first protective shell and can be cut and crushed by the blade, so that the water pump is not easy to be blocked.

[0004] When the above invention is in use, the pump body is in the process of extracting sewage. Due to the large amount of impurities in the sewage, the main body cannot intercept and process the impurities in the pump body during the suction process, resulting in the impurities in the sewage entering the pump body and affecting the use and normal operation of the fan blades. At the same time, during the process of pumping sewage, the conventional pump body has a large amount of impurities in the sewage, resulting in the sewage having a higher viscosity than that of clean water. Therefore, when the suction force of the pump body is small, the sewage cannot be pumped normally, resulting in reduced suction efficiency of the pump body. At the same time, due to the large amount of impurities such as silt in the sewage, a certain amount of silt is easily adhered to the surface of the fan blade during the rotation and transportation process, resulting in the suction efficiency of the pump body being affected:

[0005] Therefore, a split sewage pump is proposed. Summary of the invention

[0006] The object of the present invention is to provide a split-type sewage pump. By setting an intercepting mechanism in conjunction with a transmission shaft, a retaining frame, a driving motor and other structures, the pump body can block large-volume impurities in the sewage on the left side of the fan blades when the sewage is being pumped, thereby avoiding direct contact between the impurities and the fan blades and affecting the rotation of the fan blades. At the same time, the cleaning mechanism is used to clean the blocking net to prevent impurities from clogging the blocking net and affecting the normal suction process of the water pump, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a split sewage pump, comprising a mounting base, an upper end face of the mounting base is fixedly connected with a connecting base and a pump body, the upper end face of the connecting base is fixedly connected with a driving motor, the connecting base and the opposite side walls of the pump body are fixedly connected with support frames, a plurality of circumferentially arranged retaining frames are fixedly connected between the two support frames, a mounting end cover is fixedly connected with a mounting end cover on the right end side wall of the pump body by a plurality of bolts, a conveying cavity is opened in the pump body, a fan blade is rotatably connected in the conveying cavity, a transmission shaft is fixedly connected to the end of the output shaft of the driving motor, the transmission shaft passes through the rotating shaft of the mounting end cover that is rotatably connected and the left end face is fixedly connected to the fan blade, a conveying pipe is fixedly connected to the front end inlet of the pump body, an intercepting mechanism for intercepting and conveying impurities in sewage is provided in the conveying pipe, a pressurizing mechanism for pressurizing the pump body during the process of sucking sewage is provided on the upper end face of the conveying pipe, and a cleaning mechanism for cleaning the fan blade during the conveying process is provided in the conveying cavity.

[0008] By setting up an intercepting mechanism in conjunction with the transmission shaft, retaining frame, driving motor and other structures, it is possible to block large volumes of impurities in the sewage on the left side of the fan blades when the pump body is pumping sewage, thereby avoiding direct contact between the impurities and the fan blades and affecting the rotation of the fan blades. At the same time, the cleaning mechanism is used to clean the blocking net to prevent impurities from clogging the blocking net and affecting the normal suction process of the water pump.

[0009] Preferably, the intercepting mechanism includes a blocking net fixedly connected in the conveying pipe, a transmission pipe is rotatably connected in the conveying pipe, a connecting shaft is fixedly connected to the left end face of the transmission pipe, a sewage pipe is fixedly connected and connected to the left side wall of the conveying pipe, the transmission pipe passes through the conveying pipe and the sewage pipe and is rotatably connected, and an auger blade is fixedly connected to the side wall of the transmission pipe.

[0010] By setting auger blades, sewage pipes and transmission pipes, the impurities blocked in the barrier net are cleaned and discharged from the sewage pipe through the spiral conveyance of the auger blades, preventing the clogging of the barrier net from affecting the sewage suction process.

[0011] Preferably, a plurality of limit rings arranged at equal intervals are circumferentially opened on the side wall of the transmission tube, a plurality of buffer tubes are fixedly connected to the inner side wall of the transmission tube, the buffer tubes are connected to the limit rings, the inner bottom of the buffer tubes is fixedly connected to a limit rod, a connecting rod is sleeved on the limit rod, a return spring is elastically connected between the lower end face of the connecting rod and the inner bottom face of the buffer tube, the return spring is sleeved on the limit rod, and a cleaning brush is fixedly connected to the outer end face of the connecting rod.

[0012] By setting a limit ring, a limit rod and a cleaning brush, the rotation of the transmission pipe is used to generate centrifugal inertia on the connecting rod, driving the cleaning brush to fit tightly against the barrier net, thereby cleaning the impurities adhering to the surface of the barrier net.

[0013] Preferably, the boosting mechanism includes two symmetrically arranged boosting boxes fixedly connected to the upper end surface of the delivery pipe, a transition shaft rotatably connected passing through the boosting box, the transition shaft is located in the boosting box and is fixedly connected to a transmission crankshaft, a transition rod is rotatably connected to the transmission crankshaft, the lower end surface of the transition rod is rotatably connected to a piston, and the piston is slidably connected in the boosting box.

[0014] By arranging a transition shaft, a driving crankshaft and a piston, the air in the delivery pipe can be sucked during the reciprocating movement of the piston, and the cavity pressure in the delivery pipe can be changed, thereby enhancing the sewage suction capacity of the pump body.

[0015] Preferably, a plurality of the retaining frames are fixedly connected with a protective cover, a first transmission pulley is fixedly connected to the side wall of the transmission shaft located in the protective cover and the right end face of the transmission tube, a second transmission pulley is fixedly connected to the left end faces of the connecting shaft and the transition shaft, a transmission belt is sleeved between the two first transmission pulleys and the two second transmission pulleys, a transmission outer shell is fixedly connected to the left side wall of the pump body, and the two second transmission pulleys are arranged in the transmission outer shell.

[0016] By arranging a plurality of driving pulleys and driving belts, the impurities blocked by the pump body and the change of the cavity pressure inside the conveying pipe can be realized synchronously during the operation.

[0017] Preferably, the cleaning mechanism comprises a drain pipe and a water inlet pipe fixedly connected in the conveying cavity, the water inlet pipe is connected to the drain pipe, and the angles between the water inlet pipe and the drain pipe and the horizontal direction are both 45°.

[0018] By setting up a drainage pipe and a water inlet pipe, and utilizing sewage to circulate in the water inlet pipe and the drainage pipe, impurities sticking to the surface of the fan blades can be cleaned, preventing impurities from increasing the operating pressure of the fan blades and reducing the pump body's efficiency in pumping sewage. By utilizing an inclination angle of degrees, the water flow discharged from the drainage pipe can be made tangent to the rotation radius of the fan blades, thereby preventing the water flow from affecting the rotation of the fan blades.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting up an interception mechanism in conjunction with the transmission shaft, retainer, drive motor and other structures, the large volume of impurities in the sewage can be blocked on the left side of the fan blades when the pump body is pumping sewage, avoiding direct contact between the impurities and the fan blades and affecting the rotation of the fan blades. At the same time, the cleaning mechanism is used to clean the blocking net to prevent impurities from clogging the blocking net and affecting the normal suction process of the water pump;

[0021] 2. By setting up auger blades, sewage pipes and transmission pipes, the impurities blocked in the barrier net are cleaned and discharged from the sewage pipe through the spiral conveyance of the auger blades to prevent the clogging of the barrier net from affecting the sewage suction process.

[0022] 3. By setting a limit ring, a limit rod and a cleaning brush, the rotation of the transmission tube is used to generate centrifugal inertia on the connecting rod, which drives the cleaning brush to stick to the barrier net, thereby cleaning the impurities adhering to the surface of the barrier net.

[0023] 4. By setting a transition shaft, a transmission crankshaft and a piston, the air in the delivery pipe can be sucked and the cavity pressure in the delivery pipe can be changed during the reciprocating movement of the piston, thereby enhancing the pump body's ability to pump sewage. By setting a plurality of transmission pulleys and transmission belts, the impurities after blocking and the cavity pressure inside the delivery pipe can be changed synchronously during the operation of the pump body.

[0024] 5. By setting up a drainage pipe and a water inlet pipe, and utilizing sewage to circulate in the water inlet pipe and the drainage pipe, impurities sticking to the surface of the fan blades can be cleaned, preventing impurities from increasing the operating pressure of the fan blades and reducing the pump body's efficiency in pumping sewage. By utilizing an inclination angle of °, the water flow discharged from the drainage pipe can be tangent to the rotation radius of the fan blades, preventing the water flow from affecting the rotation of the fan blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the retainer of the present invention;

[0026] Figure 2 It is a front view of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the booster box of the present invention;

[0028] Figure 4 It is a left-side structural schematic diagram of the pump body of the present invention;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the pump body of the present invention;

[0030] Figure 6It is a cross-sectional view of the transmission tube of the present invention;

[0031] Figure 7 It is a schematic diagram of the main structure of the transmission tube of the present invention;

[0032] Figure 8 It is an enlarged schematic diagram of the structure at location A of the present invention.

[0033] In the figure: 1. Mounting base; 2. Connecting base; 3. Driving motor; 4. Retaining frame; 5. Transmission shaft; 6. Protective cover; 7. First transmission pulley; 8. Pump body; 9. Transmission casing; 10. Delivery pipe; 11. Transmission pipe; 12. Barrier net; 13. Drain pipe; 14. Second transmission pulley; 15. Connecting shaft; 16. Transition shaft; 17. Booster box; 18. Transmission crankshaft; 19. Transition rod; 20. Piston; 21. Mounting end cover; 22. Delivery chamber; 23. Fan blades; 24. Water inlet pipe; 25. Drain pipe; 26. Auger blades; 27. Buffer pipe; 28. Limit rod; 29. ​​Connecting rod; 30. Cleaning brush; 31. Limit ring; 32. Support frame. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figures 1 to 8 , the present invention provides a technical solution:

[0036] A split sewage pump, such as Figure 1 to Figure 2 As shown, it includes a mounting base 1, the upper end surface of the mounting base 1 is fixedly connected with a connecting base 2 and a pump body 8, the upper end surface of the connecting base 2 is fixedly connected with a driving motor 3, the connecting base 2 and the opposite side walls of the pump body 8 are fixedly connected with support frames 32, a plurality of circumferentially arranged retaining frames 4 are fixedly connected between the two support frames 32, a mounting end cover 21 is fixedly connected to the right side wall of the pump body 8 by a plurality of bolts, a conveying chamber 22 is opened in the pump body 8, a fan blade 23 is rotatably connected in the conveying chamber 22, a transmission shaft 5 is fixedly connected to the end of the output shaft of the driving motor 3, the transmission shaft 5 passes through the rotating shaft of the mounting end cover 21 which is rotatably connected and the left end surface is fixedly connected to the fan blade 23, a conveying pipe 10 is fixedly connected to the front inlet of the pump body 8, an intercepting mechanism for intercepting and conveying impurities in sewage is arranged in the conveying pipe 10, a pressurizing mechanism for pressurizing the pump body 8 during the process of sucking sewage is arranged on the upper end surface of the conveying pipe 10, and a cleaning mechanism for cleaning the fan blade 23 during the conveying process is arranged in the conveying chamber 22;

[0037] By setting the interception mechanism in cooperation with the transmission shaft 5, the retaining frame 4 and the drive motor 3, when the pump body 8 is pumping sewage, large-volume impurities in the sewage are blocked on the left side of the blade 23, so as to avoid direct contact between the impurities and the blade 23 and affect the rotation of the blade 23. At the same time, the cleaning mechanism is used to clean the blocking net 12 to prevent the impurities from clogging the blocking net 12 and affecting the normal suction process of the pump body 8.

[0038] As an embodiment of the present invention, Figure 2 As shown, the intercepting mechanism includes a blocking net 12 fixedly connected in the conveying pipe 10, a transmission pipe 11 is rotatably connected in the conveying pipe 10, a connecting shaft 15 is fixedly connected to the left end face of the transmission pipe 11, a sewage pipe 13 is fixedly connected and connected to the left side wall of the conveying pipe 10, the transmission pipe 11 penetrates and is rotatably connected in the conveying pipe 10 and the sewage pipe 13, and an auger blade 26 is fixedly connected to the side wall of the transmission pipe 11.

[0039] By providing the auger blades 26, the sewage pipe 13 and the transmission pipe 11, the impurities blocked in the blocking net 12 are cleaned and discharged from the sewage pipe 13 through the spiral conveyance of the auger blades 26, so as to prevent the clogging of the blocking net 12 from affecting the sewage suction process;

[0040] During operation, the rotation of the output shaft of the driving motor 3 drives the rotation of the transmission shaft 5. At this time, the first transmission pulley 7 on the transmission shaft 5 rotates to cooperate with the first transmission pulley 7 on the transmission pipe 11 to realize power transmission, that is, the transmission pipe 11 is driven to rotate. When the sewage enters the pump body 8 from the delivery pipe 10, the large volume impurities in the sewage are first intercepted by the blocking net 12. The intercepted impurities are transported to the sewage pipe 13 under the transportation of the auger blades 26 and discharged through the sewage pipe 13.

[0041] As an embodiment of the present invention, Figure 6-Figure 7 As shown, a plurality of limit rings 31 are circumferentially opened on the side wall of the transmission tube 11 and are arranged at equal intervals. A plurality of buffer tubes 27 are fixedly connected to the inner wall of the transmission tube 11. The buffer tubes 27 are connected to the limit rings 31. The inner bottom of the buffer tube 27 is fixedly connected to a limit rod 28. A connecting rod 29 is sleeved on the limit rod 28. A return spring is elastically connected between the lower end face of the connecting rod 29 and the inner bottom face of the buffer tube 27. The return spring is sleeved on the limit rod 28. A cleaning brush 30 is fixedly connected to the outer end face of the connecting rod 29.

[0042] By providing the limiting ring 31, the limiting rod 28 and the cleaning brush 30, the rotation of the transmission tube 11 generates centrifugal inertia on the connecting rod 29, driving the cleaning brush 30 to be in close contact with the blocking net 12, so as to clean the impurities adhering to the surface of the blocking net 12;

[0043] During operation, the transmission tube 11 rotates, and due to the centrifugal force of rotation, the connecting rod 29 is thrown out of the limiting ring 31, and the cleaning brush 30 is driven to contact the blocking net 12, so as to clean the impurities remaining on the surface of the blocking net 12 and realize the reset process and elastic pop-up under the action of the reset spring.

[0044] As an embodiment of the present invention, Figure 2 As shown, a plurality of retaining frames 4 are fixedly connected to protective covers 6, a first transmission pulley 7 is fixedly connected to the side wall of the transmission shaft 5 located inside the protective cover 6 and the right end face of the transmission tube 11, a second transmission pulley 14 is fixedly connected to the left end faces of the connecting shaft 15 and the transition shaft 16, a transmission belt is sleeved between the two first transmission pulleys 7 and the two second transmission pulleys 14, a transmission housing 9 is fixedly connected to the left side wall of the pump body 8, and the two second transmission pulleys 14 are both arranged in the transmission housing 9.

[0045] By providing a plurality of drive pulleys and drive belts, the impurities blocked by the pump body 8 and the change of the internal cavity pressure of the conveying pipe 10 can be realized synchronously during the operation.

[0046] As an embodiment of the present invention, Figure 3 As shown, the boosting mechanism includes two symmetrically arranged boosting boxes 17 fixedly connected to the upper end surface of the delivery pipe 10, a transition shaft 16 is rotatably connected through the boosting box 17, the transition shaft 16 is located in the boosting box 17 and is fixedly connected to a transmission crankshaft 18, a transition rod 19 is rotatably connected to the transmission crankshaft 18, the lower end surface of the transition rod 19 is rotatably connected to a piston 20, and the piston 20 is slidably connected in the boosting box 17.

[0047] By providing the transition shaft 16, the transmission crankshaft 18 and the piston 20, the air in the delivery pipe 10 is sucked during the reciprocating movement of the piston 20, and the cavity pressure in the delivery pipe 10 is changed, thereby enhancing the sewage suction capacity of the pump body 8;

[0048] During operation, power is transmitted through the transition shaft 16 and the two second transmission pulleys 14 on the left end face of the connecting shaft 15. At this time, the transition shaft 16 drives the rotation of the transmission crankshaft 18 in the booster box 17, and pulls the transition rod 19 to pull the piston 20 to move up and down. At this time, when the piston 20 moves upward, the cavity pressure in the delivery pipe 10 decreases, which promotes the sewage in the delivery pipe 10 to flow into the pump body 8.

[0049] As an embodiment of the present invention, Figure 5 As shown, the cleaning mechanism includes a drain pipe 25 and a water inlet pipe 24 fixedly connected in the delivery chamber 22, the water inlet pipe 24 is connected to the drain pipe 25, and the angle between the water inlet pipe 24 and the drain pipe 25 and the horizontal direction is 45 degrees.

[0050] By setting the drainage pipe 25 and the water inlet pipe 24, the sewage is circulated in the water inlet pipe 24 and the drainage pipe 25 to clean the impurities adhering to the surface of the fan blade 23, prevent the impurities from increasing the operating pressure of the fan blade 23, reduce the pumping efficiency of the pump body 8 for sewage, and use the inclined angle of 45° to achieve the water flow discharged from the drainage pipe 25 to be tangent to the rotation radius of the fan blade 23, so as to prevent the water flow from affecting the rotation of the fan blade 23;

[0051] Working principle: After the sewage flows through the fan blades 23, part of the sewage enters from the water inlet pipe 24 due to the water flow pressure and is discharged from the drain pipe 25, thereby cleaning the dirt and impurities remaining on the surface of the fan blades 23, preventing impurities from adhering to the fan blades 23 and affecting its normal operation process and the efficiency of sewage suction.

[0052] Working principle: Under the driving action of the driving motor 3 and the transmission shaft 5, the first transmission pulley 7 on the side wall of the transmission shaft 5 and the fan blades 23 in the conveying chamber 22 are driven to rotate. During this process, the first transmission pulley 7 on the transmission shaft 5 rotates to cooperate with the first transmission pulley 7 on the transmission pipe 11 to realize power transmission, that is, the transmission pipe 11 is driven to rotate. When the sewage enters the pump body 8 from the delivery pipe 10, the large volume impurities in the sewage are first intercepted by the blocking net 12. The intercepted impurities are transported to the sewage pipe 13 under the transportation of the auger blades 26 and discharged through the sewage pipe 13. During the rotation of the transmission pipe 11, the connecting rod 29 is thrown out of the limit ring 31 due to the action of the rotation centrifugal force, and the cleaning brush 30 is driven to contact with the blocking net 12, so as to realize the cleaning of the impurities remaining on the surface of the blocking net 12. The quality is cleaned and the reset process and elastic pop-up are realized under the action of the reset spring. Then, the transition shaft 16 and the two second transmission pulleys 14 on the left end face of the connecting shaft 15 realize power transmission. At this time, the transition shaft 16 drives the rotation of the transmission crankshaft 18 in the boost box 17, and pulls the transition rod 19 to pull the piston 20 to move up and down. At this time, when the piston 20 moves upward, the cavity pressure in the delivery pipe 10 is reduced, which promotes the sewage in the delivery pipe 10 to flow into the pump body 8. After the sewage flows through the fan blades 23, due to the water flow pressure, part of the sewage enters from the water inlet pipe 24 and is discharged from the drain pipe 25, thereby realizing the cleaning of the dirt and impurities remaining on the surface of the fan blades 23, and preventing impurities from adhering to the fan blades 23, affecting its normal operation process and the efficiency of sewage suction.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split sewage pump, comprising a mounting base (1), characterized in that: The upper end surface of the mounting base (1) is fixedly connected to a connecting base (2) and a pump body (8); the upper end surface of the connecting base (2) is fixedly connected to a driving motor (3); the connecting base (2) and the opposite side walls of the pump body (8) are fixedly connected to support frames (32); a plurality of circumferentially arranged retaining frames (4) are fixedly connected between the two support frames (32); a mounting end cover (21) is fixedly connected to the right end side wall of the pump body (8) by means of a plurality of bolts; a conveying cavity (22) is provided in the pump body (8); a fan blade (23) is rotatably connected in the conveying cavity (22); The output shaft end of the driving motor (3) is fixedly connected to a transmission shaft (5), the transmission shaft (5) passes through a rotatably connected mounting end cover (21) and the left end face is fixedly connected to the rotating shaft of the fan blade (23), the front end inlet of the pump body (8) is fixedly connected to a delivery pipe (10), the delivery pipe (10) is provided with an interception mechanism for intercepting and transporting impurities in sewage, the upper end face of the delivery pipe (10) is provided with a pressurizing mechanism for increasing the pressure of the pump body (8) during the process of sucking sewage, and the delivery chamber (22) is provided with a cleaning mechanism for cleaning the fan blade (23) during the delivery process; The interception mechanism comprises a blocking net (12) fixedly connected in the delivery pipe (10), a transmission pipe (11) rotatably connected in the delivery pipe (10), a connecting shaft (15) fixedly connected to the left end face of the transmission pipe (11), a sewage pipe (13) fixedly connected and communicated to the left side wall of the delivery pipe (10), the transmission pipe (11) penetrates and rotatably connects to the delivery pipe (10) and the sewage pipe (13), and an auger blade (26) is fixedly connected to the side wall of the transmission pipe (11); A plurality of limiting rings (31) are circumferentially provided on the side wall of the transmission tube (11) at equal intervals; a plurality of buffer tubes (27) are fixedly connected to the inner side wall of the transmission tube (11); the buffer tubes (27) are connected to the limiting rings (31); the inner bottom of the buffer tube (27) is fixedly connected to a limiting rod (28); a connecting rod (29) is sleeved on the limiting rod (28); a return spring is elastically connected between the lower end surface of the connecting rod (29) and the inner bottom of the buffer tube (27); the return spring is sleeved on the limiting rod (28); and a cleaning brush (30) is fixedly connected to the outer end surface of the connecting rod (29); The boost mechanism comprises two symmetrically arranged boost boxes (17) fixedly connected to the upper end surface of the delivery pipe (10), a transition shaft (16) running through the boost box (17) and rotatably connected, the transition shaft (16) is located in the boost box (17) and is fixedly connected to a transmission crankshaft (18), a transition rod (19) is rotatably connected to the transmission crankshaft (18), the lower end surface of the transition rod (19) is rotatably connected to a piston (20), and the piston (20) is slidably connected in the boost box (17); The cleaning mechanism comprises a drain pipe (25) and a water inlet pipe (24) fixedly connected in the conveying chamber (22); the water inlet pipe (24) is connected to the drain pipe (25); and the angles between the water inlet pipe (24) and the drain pipe (25) and the horizontal direction are both 45 degrees.

2. A split type sewage pump according to claim 1, characterized in that: A plurality of the retaining frames (4) are fixedly connected to a protective cover (6); a first transmission pulley (7) is fixedly connected to the side wall of the transmission shaft (5) located inside the protective cover (6) and the right end surface of the transmission tube (11); a second transmission pulley (14) is fixedly connected to the left end surfaces of the connecting shaft (15) and the transition shaft (16); a transmission belt is sleeved between the two first transmission pulleys (7) and the two second transmission pulleys (14); a transmission housing (9) is fixedly connected to the left side wall of the pump body (8); and the two second transmission pulleys (14) are arranged inside the transmission housing (9).

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