CN114562464A

CN114562464A - Vertical submerged centrifugal pump

Info

Publication number: CN114562464A
Application number: CN202210283869.6A
Authority: CN
Inventors: 路宝通; 刘文杨; 邓伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-05-31

Abstract

The invention relates to the field of centrifugal pumps, in particular to a vertical submerged centrifugal pump. The vertical submerged centrifugal pump comprises a support frame, a driving motor, a pump head, a transmission adjusting mechanism and a filtering mechanism, the transmission adjusting mechanism fixed mounting who is used for the transmission and adjusts the position of pump head is on the support frame, and transmission adjusting mechanism includes sleeve and lower sleeve, it installs on the support frame to go up sleeve fixed mounting, and install the transmission sleeve in the last sleeve, transmission sleeve one end fixed mounting has shaft coupling one, shaft coupling one is connected with driving motor's output shaft transmission, lower sleeve cover establish on last sleeve and with last sleeve sliding connection, and sleeve bottom fixed mounting has the connection pad down, connection pad and pump head fixed connection, sleeve top fixed connection has adjusting part down, a filtering mechanism setting and the pump head for filtering impurity prevents stifled. The vertical submerged centrifugal pump provided by the invention has the advantages of reliable adjustment of the position of the pump head, convenience in use, filtering protection and long service life.

Description

Vertical submerged centrifugal pump

Technical Field

The invention relates to the field of centrifugal pumps, in particular to a vertical submerged centrifugal pump.

Background

The centrifugal pump is a pump for conveying a liquid by centrifugal force generated when an impeller rotates. The pump mainly comprises an impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like. It is mainly characterized in that: compact structure, wide flow lift range, even flow, stable operation, small vibration, low maintenance and repair cost and the like.

The vertical submerged centrifugal pump is also one of centrifugal pumps, when in use, a pump head with one end of an impeller is required to be placed below the water surface, and a driving motor is required to be placed on the water surface, and the vertical submerged centrifugal pump is disclosed in the specification: CN112324667A discloses a vertical submerged centrifugal pump, which comprises a centrifugal pump body, a water outlet, an adjusting structure, a water guide hose, a connecting flange, a first support rod, a first rotating shaft, a second support rod and a support structure. The invention has the beneficial effects that: through installing the water guide hose between flange and the centrifugal pump body, make the flange that is used for joint drain pipe can carry out the regulation of arbitrary angle, when the mounted position liquid level of centrifugal pump is lower, thereby flange can change the angle and reduce the height of connection of drain pipe, make things convenient for operating personnel to install, be equipped with the first bracing piece and the second bracing piece of rotating the connection between flange and the centrifugal pump body simultaneously, can restrict flange's removal scope, thereby guarantee that flange only can carry out the rotation on the coplanar, reduce the damage of rotating to the water guide hose when conveniently adjusting the flange angle, avoid the water guide hose to buckle.

The pump head can not be adjusted with driving motor's distance when in actual use, can not adjust the use to different liquid level heights, and can not filter the liquid that gets into the pump body, when extracting the medium that impurity is more, leads to the pump body wearing and tearing to block up easily.

Therefore, there is a need to provide a new vertical submerged centrifugal pump to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides the vertical submerged centrifugal pump which can reliably adjust the position of the pump head, is convenient to use, has filtering protection and is long in service life.

The invention provides a vertical submerged centrifugal pump, comprising: a support frame;

the driving motor is used for providing power and is fixedly arranged at one end of the supporting frame through a flange;

the pump head with the centrifugal impeller arranged inside is arranged at the other end of the support frame;

the transmission adjusting mechanism is used for transmitting and adjusting the position of a pump head and is fixedly arranged on the support frame, the transmission adjusting mechanism comprises an upper sleeve and a lower sleeve, the upper sleeve is fixedly arranged on the support frame, a transmission sleeve is arranged in the upper sleeve, one end of the transmission sleeve is fixedly provided with a first coupling, the first coupling is in transmission connection with an output shaft of a driving motor, the lower sleeve is sleeved on the upper sleeve and is in sliding connection with the upper sleeve, the bottom end of the lower sleeve is fixedly provided with a connecting disc, the connecting disc is fixedly connected with the pump head, and the top end of the lower sleeve is fixedly connected with an adjusting component;

and the filtering mechanism is used for filtering impurities to prevent blockage and is arranged in the pump head.

Preferably, a plurality of ring grooves are formed in the inner side wall of the top end of the lower sleeve, and sealing rings are embedded in the ring grooves.

Preferably, the connection pad is provided with a second shaft coupler in a rotating mode, the bottom end of the second shaft coupler is in transmission connection with a rotating shaft of a centrifugal impeller of the pump head, a spline shaft is fixedly connected to the top end of the second shaft coupler, the spline shaft is in sliding connection with the transmission sleeve, and a key groove matched with the spline shaft is formed in the transmission sleeve.

Preferably, the adjusting part includes fixed plate, nut cover, threaded rod, driven gear, driving gear and adjusting hand wheel, fixed plate fixed mounting is on telescopic top lateral wall down, and the symmetry inlays and is equipped with the nut cover on the fixed plate, two the threaded rod rotates and installs on the support frame, and two threaded rods all upwards pass the nut cover of homonymy and with nut cover threaded connection, the top fixed mounting of two threaded rods has driven gear, the driving gear rotates and installs on last sleeve, and driving gear and two driven gear all mesh, adjusting hand wheel fixed mounting is in the lower surface of driving gear.

Preferably, the adjusting hand wheel is provided with anti-skid lines or is sleeved with a rubber sleeve.

Preferably, the transmission adjusting mechanism further comprises four guide rods, one ends of the four guide rods are fixedly connected with the upper surface of the connecting disc, and the other ends of the four guide rods upwards penetrate through holes formed in the supporting frame and are fixedly connected with the fixing plate.

Preferably, the filter mechanism includes the flange end, the flange end passes through bolt fixed connection with the end of intaking of pump head, and the bottom fixedly connected with filter mantle of flange end, and the inlet opening with the pump head intercommunication is seted up to the flange end, the inlet opening internal rotation is connected with the impeller that rotates, and one side that the flange end is located the inlet opening sets up the mounting groove, install the clean subassembly of clean filter mantle in the mounting groove.

Preferably, clean subassembly includes adapter sleeve, first conical gear, knee, scraper, second conical gear and fixing base, the adapter sleeve welding in the flange end and with the inlet opening intercommunication, and rotate on the adapter sleeve and be connected with first conical gear, the one end and the first conical gear bottom fixed connection of knee, the other end of knee rotate and are connected with the fixing base, fixing base fixed mounting is in the filter mantle, fixed mounting has the scraper in the laminating of filter mantle inside wall on the knee, second conical gear overlaps to locate impeller's pivot to be located the mounting groove, and second conical gear and the meshing of first conical gear.

Preferably, the water collecting end of the pump head is provided with a connecting flange, and the connecting flange is provided with a water outlet connecting pipe.

Preferably, a fixing frame is fixedly mounted at one end of the water outlet connecting pipe, which is far away from the connecting flange plate, and the fixing frame penetrates through a through groove formed in the supporting frame to be fixedly connected with the fixing plate.

Compared with the related art, the vertical submerged centrifugal pump provided by the invention has the following beneficial effects:

1. the invention provides a vertical submerged centrifugal pump, wherein a driving motor and a pump head are arranged at two ends of a support frame and are in transmission connection through a transmission adjusting mechanism, the transmission adjusting mechanism can realize that the driving motor drives the pump head to pump water through the matching of an upper sleeve, a transmission sleeve, a first coupling, a lower sleeve, a sealing ring, a connecting disc, a second coupling and a spline shaft, and the distance between the pump head and the driving motor can be adjusted through the matching of an adjusting component fixing plate, a nut sleeve, a threaded rod, a driven gear, a driving gear and an adjusting hand wheel, so that the pump head and the driving motor can be conveniently stretched into liquid levels with different heights to pump water;

2. the filter mechanism is arranged at the water inlet end of the pump head, and the filter mechanism can filter and screen media entering the pump head by utilizing the matching of the flange end, the filter mantle, the rotating impeller, the cleaning assembly, the connecting sleeve, the first conical gear, the bent rod, the scraper, the second conical gear and the fixing seat, so that the pump head is protected, the filter mantle can be scraped to be clean, the blockage of the filter mantle is avoided, and the water pumping operation is influenced.

Drawings

FIG. 1 is a schematic structural view of a vertical submerged centrifugal pump according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view from another perspective of the vertical submerged centrifugal pump provided by the present invention;

FIG. 3 is a schematic structural view of the drive adjustment mechanism shown in FIG. 1;

FIG. 4 is a schematic view of the internal structure of the drive adjustment mechanism shown in FIG. 1;

FIG. 5 is a partial enlarged view of a shown in FIG. 4;

FIG. 6 is a schematic view of the pump head of FIG. 1;

FIG. 7 is a schematic structural view of the filter mechanism shown in FIG. 1;

fig. 8 is a schematic view showing the internal structure of the filter mechanism shown in fig. 1.

Reference numbers in the figures: 1. a support frame; 101. a through groove; 2. a drive motor; 3. a transmission adjustment mechanism; 31. an upper sleeve; 32. a drive sleeve; 321. a first coupler; 33. a lower sleeve; 331. a seal ring; 34. a connecting disc; 341. a second coupling; 342. a spline shaft; 35. an adjustment assembly; 351. a fixing plate; 352. a nut sleeve; 353. a threaded rod; 354. a driven gear; 355. a driving gear; 356. adjusting a hand wheel; 36. a guide bar; 4. a pump head; 41. a centrifugal impeller shaft; 42. connecting a flange plate; 5. a filtering mechanism; 501. a water inlet hole; 502. mounting grooves; 51. a flange end; 52. a filter housing; 53. rotating the impeller; 54. a cleaning assembly; 541. connecting a sleeve; 542. a first conical gear; 543. bending a rod; 544. a scraper; 545. a second conical gear; 546. a fixed seat; 6. a water outlet connecting pipe; 7. a fixing frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

The first embodiment is as follows:

referring to fig. 1 to 8, a vertical submerged centrifugal pump according to an embodiment of the present invention includes: the device comprises a support frame 1, a driving motor 2, a pump head 4, a transmission adjusting mechanism 3 and a filtering mechanism 5.

The driving motor 2 for providing power is fixedly arranged at one end of the support frame 1 through a flange; the pump head 4 with a centrifugal impeller arranged in the pump head 4 is arranged at the other end of the support frame 1; transmission adjustment mechanism 3, a transmission adjustment mechanism 3 fixed mounting for the transmission and adjust the position of pump head 4 is on support frame 1, and transmission adjustment mechanism 3 includes upper sleeve 31 and lower sleeve 33, upper sleeve 31 fixed mounting is on support frame 1, and install transmission sleeve 32 in the upper sleeve 31, transmission sleeve 32 one end fixed mounting has a shaft coupling 321, a shaft coupling 321 is connected with driving motor 2's output shaft transmission, lower sleeve 33 cover establish on upper sleeve 31 and with upper sleeve 31 sliding connection, and sleeve 33 bottom fixed mounting has connection pad 34 down, connection pad 34 and pump head 4 fixed connection, lower sleeve 33 top fixedly connected with adjusting part 35, a filter mechanism 5 for filtering impurity prevents blocking sets up with in the pump head 4.

It should be noted that: during the use, guarantee that driving motor 2 is higher than the liquid level with the installation of support frame 1, then according to the liquid level height of difference, adjust lower sleeve 33 through adjusting part 35 and slide along upper sleeve 31, lower sleeve 33 drives the connection pad 34 of installing pump head 4 and removes to adjust the position height of pump head 4, stretch into below the liquid level with pump head 4, then driving motor 2 drives pump head 4 through transmission adjustment mechanism 3 and rotates the operation of drawing water.

In the embodiment of the present invention, referring to fig. 4 and 5, a plurality of annular grooves are formed on the inner side wall of the top end of the lower sleeve 33, and the sealing rings 331 are respectively embedded in the annular grooves.

It should be noted that: therefore, when the lower sleeve 33 slides on the upper sleeve 31, the sealing ring 331 is used for sealing completely, so that liquid can be prevented from entering the upper sleeve 31 and the lower sleeve 33, and the transmission is prevented from being interfered.

In the embodiment of the present invention, please refer to fig. 4 and fig. 5, a second coupling 341 is rotatably mounted on the connecting disc 34, the bottom end of the second coupling 341 is in transmission connection with the centrifugal impeller rotating shaft 41 of the pump head 4, a spline shaft 342 is fixedly connected to the top end of the second coupling 341, the spline shaft 342 is in sliding connection with the transmission sleeve 32, and a key slot matched with the spline shaft 342 is formed in the transmission sleeve 32.

It should be noted that: transmission adjustment mechanism 3 is when the transmission, drives transmission sleeve 32 through driving motor 2 and shaft coupling 321 and rotates, and transmission sleeve 32 drives integral key shaft 342 and rotates, and integral key shaft 342 drives two 341 rotations of shaft coupling, and two 341 rotation of centrifugal impeller pivot 41 of drive pump head 4 of shaft coupling utilize centrifugal force to draw water, and integral key shaft 342 can the relative slip with the keyway transmission sleeve 32 of seting up integral key shaft 342 adaptation here to under not influencing the transmission, can adjust pump head 4 positions.

In an embodiment of the present invention, referring to fig. 2 and 3, the adjusting assembly 35 includes a fixing plate 351, a nut sleeve 352, screw rods 353, driven gears 354, a driving gear 355 and an adjusting hand wheel 356, the fixing plate 351 is fixedly mounted on a side wall of a top end of the lower sleeve 33, the nut sleeves 352 are symmetrically embedded on the fixing plate 351, the two screw rods 353 are rotatably mounted on the support frame 1, the two screw rods 353 both upwardly penetrate through the nut sleeve 352 on the same side and are in threaded connection with the nut sleeve 352, the driven gears 354 are fixedly mounted on top ends of the two screw rods 353, the driving gear 355 is rotatably mounted on the upper sleeve 31, the driving gear 355 is engaged with the two driven gears 354, and the adjusting hand wheel 356 is fixedly mounted on a lower surface of the driving gear 355;

it should be noted that: when the adjusting assembly 35 is used, the adjusting hand wheel 356 is rotated, the adjusting hand wheel 356 drives the driving gear 355 to rotate, the driving gear 355 is meshed with the two driven gears 354, the two driven gears 354 rotate, the driven gears 354 drive the threaded rod 353 to rotate, the threaded rod 353 rotates, the driving nut sleeve 352 drives the fixing plate 351 to move along the direction of the threaded rod 353, the fixing plate 351 drives the lower sleeve 33 to slide on the upper sleeve 31, and therefore the position of the pump head 4 on the connecting disc 34 at the bottom end of the lower sleeve 33 is adjusted.

In the present embodiment: the adjusting hand wheel 356 is provided with anti-slip threads or is sleeved with a rubber sleeve, so that friction force is increased, and the adjusting hand wheel 356 can be conveniently held by hand to rotate.

The transmission adjusting mechanism 3 further comprises guide rods 36, one ends of the four guide rods 36 are fixedly connected with the upper surface of the connecting disc 34, the other ends of the four guide rods upwards penetrate through holes formed in the supporting frame 1 and are fixedly connected with the fixing plate 351, and the guide rods 36 synchronously move when the connecting disc 34 moves, so that the connecting disc 34 moves and the whole transmission adjustment is more stable.

In an embodiment of the present invention, referring to fig. 2 and fig. 3, the filtering mechanism 5 includes a flange end 51, the flange end 51 is fixedly connected to the water inlet end of the pump head 4 through a bolt, the bottom end of the flange end 51 is fixedly connected to the filter cover 52, the flange end 51 is provided with a water inlet 501 communicated with the pump head 4, the water inlet 501 is rotatably connected to the rotary impeller 53, one side of the flange end 51 located at the water inlet 501 is provided with an installation groove 502, and the installation groove 502 is internally provided with the cleaning component 54 for cleaning the filter cover 52.

It should be noted that: when the filter mechanism 5 is used, when the pump head 4 pumps water, water flows into the water inlet hole 501 from the filter cover 52, the filter cover 52 filters the flowing-in medium, the water flow drives the rotary impeller 53 to rotate in the water inlet hole 501, and the rotary impeller 53 can drive the cleaning component 54 to scrape and clean the filter cover 52, so that the blockage is reduced.

In the present embodiment: the cleaning assembly 54 includes a connection sleeve 541, a first conical gear 542, a curved bar 543, a scraper 544, a second conical gear 545 and a fixing seat 546, the connection sleeve 541 is welded in the flange end 51 and is communicated with the water inlet 501, the connection sleeve 541 is rotatably connected with the first conical gear 542, one end of the curved bar 543 is fixedly connected with the bottom end of the first conical gear 542, the other end of the curved bar 543 is rotatably connected with the fixing seat 546, the fixing seat 546 is fixedly installed in the filter cover 52, the scraper 544 attached to the inner side wall of the filter cover 52 is fixedly installed on the curved bar 543, the second conical gear 545 is sleeved on the rotating shaft of the rotating impeller 53 and is located in the installation groove 502, and the second conical gear 545 is meshed with the first conical gear 542, so that when the cleaning assembly 54 is used, the rotating impeller 53 drives the second conical gear 545 to rotate, the remaining first conical gear 542 of the second conical gear 545 is meshed, the first bevel gear 542 rotates to drive the curved rod 543 to rotate along the fixing seat 546, and the curved rod 543 drives the scraper 544 to scrape and remove the filter cover 52, so as to reduce the blockage of the filter cover 52.

The second embodiment:

in the second embodiment, referring to fig. 1 and fig. 3, the only difference is that a connection flange 42 is installed at the water receiving and discharging end of the pump head 4, a water discharging connection pipe 6 is installed on the connection flange 42, a fixing frame 7 is fixedly installed at one end of the water discharging connection pipe 6 far away from the connection flange 42, and the fixing frame 7 passes through a through groove 101 formed in the support frame 1 and is fixedly connected with a fixing plate 351.

It should be noted that: like this, go out water connecting pipe 6 and can follow pump head 4 and carry out synchronous control, can be connected with external water piping under different liquid levels, the quick erection joint of being convenient for.

The working principle of the vertical submerged centrifugal pump provided by the invention is as follows:

when the device is used, the support frame 1 is installed to ensure that the driving motor 2 is higher than the liquid level, then the lower sleeve 33 is adjusted to slide along the upper sleeve 31 through the adjusting assembly 35 according to different liquid level heights, the lower sleeve 33 drives the connecting disc 34 provided with the pump head 4 to move, so that the position height of the pump head 4 is adjusted, the pump head 4 extends below the liquid level, when the adjusting assembly 35 is used, the adjusting hand wheel 356 is rotated, the adjusting hand wheel 356 drives the driving gear 355 to rotate, the driving gear 355 is meshed with the two driven gears 354, so that the two driven gears 354 rotate, the driven gears 354 drive the threaded rod 353 to rotate, the threaded rod 353 rotates, the driving nut sleeve 352 drives the fixing plate 351 to move along the direction of the threaded rod 353, so that the fixing plate 351 drives the lower sleeve 33 to slide on the upper sleeve 31, so that the position of the pump head 4 on the connecting disc 34 at the bottom end of the lower sleeve 33 is adjusted, then driving motor 2 drives pump head 4 through transmission adjustment mechanism 3 and rotates the operation of drawing water, transmission adjustment mechanism 3 is when the transmission, drive transmission sleeve 32 through driving motor 2 and shaft coupling 321 and rotate, transmission sleeve 32 drives integral key shaft 342 and rotates, integral key shaft 342 drives two 341 rotations of shaft coupling, two 341 rotation of centrifugal impeller pivot 41 of driving pump head 4 of shaft coupling, draw water using centrifugal force, integral key shaft 342 can relative slip with the keyway transmission sleeve 32 of seting up integral key shaft 342 adaptation here, thereby under not influencing the transmission, can adjust pump head 4 position, be convenient for use under different liquid level height.

During water pumping, water flows into the water inlet hole 501 from the filter cover 52, the filter cover 52 filters an inflow medium, water flow drives the rotary impeller 53 to rotate in the water inlet hole 501, the rotary impeller 53 drives the second conical gear 545 to rotate, the rest first conical gear 542 of the second conical gear 545 is meshed, the first conical gear 542 rotates, the bent rod 543 is driven to rotate along the fixing seat 546, the bent rod 543 drives the scraper 544 to scrape and remove the filter cover 52, blockage of the filter cover 52 is reduced, effective protection can be provided for the pump head 4, and the service life of the pump head is prolonged.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A vertical submerged centrifugal pump comprising:

a support frame (1);

the driving motor (2) is used for providing power, and the driving motor (2) is fixedly arranged at one end of the support frame (1) through a flange;

the pump head (4) is internally provided with a centrifugal impeller, and the pump head (4) is arranged at the other end of the support frame (1);

it is characterized by also comprising;

the transmission adjusting mechanism (3) is used for transmitting and adjusting the position of the pump head (4), the transmission adjusting mechanism (3) is fixedly arranged on the supporting frame (1), the transmission adjusting mechanism (3) comprises an upper sleeve (31) and a lower sleeve (33), the upper sleeve (31) is fixedly arranged on the support frame (1), a transmission sleeve (32) is arranged in the upper sleeve (31), one end of the transmission sleeve (32) is fixedly provided with a first coupling (321), the first coupling (321) is in transmission connection with an output shaft of the driving motor (2), the lower sleeve (33) is sleeved on the upper sleeve (31) and is connected with the upper sleeve (31) in a sliding way, a connecting disc (34) is fixedly mounted at the bottom end of the lower sleeve (33), the connecting disc (34) is fixedly connected with the pump head (4), and an adjusting assembly (35) is fixedly connected at the top end of the lower sleeve (33);

and the filtering mechanism (5) is used for filtering impurities and preventing blockage, and the filtering mechanism (5) is arranged in the pump head (4).

2. The vertical submerged centrifugal pump according to claim 1, characterized in that the inner side wall of the top end of the lower sleeve (33) is provided with a plurality of annular grooves, and a sealing ring (331) is embedded in each annular groove.

3. The vertical submerged centrifugal pump of claim 1, characterized in that a second coupling (341) is rotatably mounted on the connecting disc (34), the bottom end of the second coupling (341) is in transmission connection with the rotating shaft (41) of the centrifugal impeller of the pump head (4), a spline shaft (342) is fixedly connected to the top end of the second coupling (341), the spline shaft (342) is in sliding connection with the transmission sleeve (32), and a key groove matched with the spline shaft (342) is formed in the transmission sleeve (32).

4. The vertical submersible centrifugal pump according to claim 1, characterized in that the adjustment assembly (35) comprises a fixed plate (351), a nut sleeve (352), a threaded rod (353), a driven gear (354), a driving gear (355) and an adjustment hand wheel (356), the fixing plate (351) is fixedly arranged on the side wall of the top end of the lower sleeve (33), nut sleeves (352) are symmetrically embedded on the fixed plate (351), the two threaded rods (353) are rotatably arranged on the support frame (1), the two threaded rods (353) upwards penetrate through the nut sleeves (352) on the same side and are in threaded connection with the nut sleeves (352), driven gears (354) are fixedly installed at the top ends of the two threaded rods (353), the driving gear (355) is rotatably installed on the upper sleeve (31), and the driving gear (355) is meshed with the two driven gears (354), and the adjusting hand wheel (356) is fixedly arranged on the lower surface of the driving gear (355).

5. The vertical submerged centrifugal pump of claim 4, wherein the adjusting hand wheel (356) is provided with anti-skid threads or is sleeved with a rubber sleeve.

6. The vertical submerged centrifugal pump according to claim 1, characterized in that the transmission adjusting mechanism (3) further comprises guide rods (36), one end of each of the four guide rods (36) is fixedly connected with the upper surface of the connecting disc (34), and the other end of each of the four guide rods (36) upwards passes through a through hole formed in the support frame (1) and is fixedly connected with the fixing plate (351).

7. The vertical submerged centrifugal pump of claim 1, wherein the filtering mechanism (5) comprises a flange end (51), the flange end (51) is fixedly connected with the water inlet end of the pump head (4) through a bolt, the bottom end of the flange end (51) is fixedly connected with a filtering cover (52), the flange end (51) is provided with a water inlet hole (501) communicated with the pump head (4), a rotating impeller (53) is rotatably connected in the water inlet hole (501), one side of the flange end (51) located at the water inlet hole (501) is provided with a mounting groove (502), and a cleaning component (54) for cleaning the filtering cover (52) is mounted in the mounting groove (502).

8. The vertical submerged centrifugal pump of claim 7, wherein the cleaning assembly (54) comprises a connecting sleeve (541), a first conical gear (542), a bent rod (543), a scraper (544), a second conical gear (545) and a fixing seat (546), the connecting sleeve (541) is welded in the flange end (51) and is communicated with the water inlet hole (501), the connecting sleeve (541) is rotatably connected with the first conical gear (542), one end of the bent rod (543) is fixedly connected with the bottom end of the first conical gear (542), the other end of the bent rod (543) is rotatably connected with the fixing seat (546), the fixing seat (546) is fixedly installed in the filter cover (52), the bent rod (543) is fixedly installed with the scraper (544) attached to the inner side wall of the filter cover (52), and the second conical gear (545) is sleeved on the rotating shaft of the rotating impeller (53), and is positioned in the mounting groove (502), and the second conical gear (545) is meshed with the first conical gear (542).

9. The vertical submerged centrifugal pump of claim 1, characterized in that the water collecting end of the pump head (4) is provided with a connecting flange (42), and the connecting flange (42) is provided with a water outlet connecting pipe (6).

10. The vertical submerged centrifugal pump of claim 9, wherein a fixing frame (7) is fixedly mounted at one end of the water outlet connecting pipe (6) far away from the connecting flange (42), and the fixing frame (7) passes through a through groove (101) formed in the support frame (1) and is fixedly connected with the fixing plate (351).