A strong self-priming intelligent pump

Abstract

The present invention relates to the technical field of strong self-priming pumps, and in particular to a strong self-priming intelligent pump, which includes a base. On both sides of the top of the base, a driving motor and a pump casing are respectively fixedly connected. An impeller is rotatably connected inside the pump casing. A coupling is fixedly connected between the output end of the driving motor and the impeller. An inlet joint and an outlet joint are provided on the pump casing. The top of the inlet joint penetrates and is fixedly connected with a turbidity sensor. The inside of the pump casing is partitioned into a U-shaped cavity for conveying liquid through a fixedly connected partition plate. On the side wall of the partition plate and close to the inlet joint, a rectangular frame is fixedly connected. A pair of upper through holes are opened at the top of the rectangular frame. The present invention can not only automatically switch according to the working conditions to improve the intelligence of the strong self-priming pump, but also store some water in the water storage cavity when pumping clear water, and then automatically flush the filter cartridge during the conversion process to avoid affecting the filtering effect of the device and increase the working efficiency of the strong self-priming pump.

Description

Technical Field

[0001] The present invention relates to the technical field of strong self-priming pumps, and particularly to a strong self-priming intelligent pump. Background Art

[0002] A strong self-priming pump belongs to a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency and long service life, and has a strong self-priming ability. A strong self-priming pump is mainly a pump that relies on the centrifugal force generated when the impeller rotates to transport liquid. When working, the pump shaft of the centrifugal pump drives the impeller and water to make a high-speed rotational motion. The water undergoes a centrifugal motion and is thrown towards the outer edge of the impeller, and then flows into the pressure water pipeline of the water pump through the flow channel of the volute pump casing.

[0003] In the prior art, there is a self-priming pump with the publication number CN117231520B that can be converted to suit different use environments. This self-priming pump can not only filter out impurities in the water during the working process, and with the rotation of the stirring rod, the stirring rod rotates and stirs the water in the sediment box, so that the water with sediment in the sediment box forms a vortex flow centered on the stirring rod, so as to gather the sediment in the water towards the center where the stirring rod is located. Then the gathered sediment is discharged from the drain pipe along with the water flow. When the pump body pumps clear water, the filter screen is rotated so that the water pumped into the pump body is no longer blocked by the filter screen, and thus the pumped clear water is directly discharged from the pump body, which can remove the blockage of the filter screen to enhance the working efficiency of the self-priming pump.

[0004] Although it can be flexibly converted according to different usage situations, there are still some problems in the actual use process. Since this strong self-priming pump needs to be manually adjusted when converting according to the usage situation, when the strong self-priming pump is pumping clear water and suddenly pumps water with sediment, at this time people cannot determine whether the pumped water needs to be filtered, and thus cannot quickly convert, which easily leads to excessive sediment accumulation in the strong self-priming pump and affects the normal operation of the pump, greatly reducing the working efficiency of the strong self-priming pump.

[0005] Therefore, a strong self-priming intelligent pump is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to propose a strong self-priming intelligent pump to solve the disadvantages existing in the background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A strong self-priming intelligent pump, including a base, on both sides of the top of the base are fixedly connected with a driving motor and a pump housing respectively. Inside the pump housing is rotatably connected with an impeller. A coupling is fixedly connected between the output end of the driving motor and the impeller. The pump housing is provided with a water inlet joint and a water outlet joint. The top of the water inlet joint penetrates and is fixedly connected with a turbidity sensor. The inside of the pump housing is separated into a U-shaped cavity for transporting liquid by a fixedly connected partition plate. On the side wall of the partition plate and close to the water inlet joint side is fixedly connected with a rectangular frame. A pair of upper through holes are opened at the top of the rectangular frame. Inside the rectangular frame and below the upper through holes are rotatably connected with filter cylinders. Inside the rectangular frame and outside the filter cylinders are rotatably connected with conversion cylinders. Lower through holes are opened at the positions of the side walls of the rectangular frame corresponding to the filter cylinders.

[0008] The top of the conversion cylinder is provided with a top hole. A L-shaped plate is fixedly connected between the bottom of the rectangular frame and the inner bottom end of the pump housing. A side plate is fixedly connected between the top of the L-shaped plate and the inner side of the pump housing. The bottom ends of the side walls of the conversion cylinders are fixedly connected with pull rods and penetrate through the side walls of the side plate. Semi-circular grooves are opened on the side walls of the rectangular frame and the side plate.

[0009] Disks are rotatably connected at the positions of the side walls of the side plate corresponding to the pull rods. The side walls of the disks are fixedly connected with the pull rods. The side walls of the disks are fixedly connected with winding rollers. The outer walls of the winding rollers are wound with pull ropes. The inner bottom end of the pump housing is fixedly connected with a telescopic cylinder. The output end of the telescopic cylinder is fixedly connected with a pulling block. One end of the pull rope is fixedly connected to the outer wall of the winding roller, and the other end of the pull rope is fixedly connected to the outer wall of the pulling block. The telescopic cylinder is electrically connected with the turbidity sensor through a controller.

[0010] Further, in the above technical solution, a recessed groove is opened on the side wall of the winding roller. Inside the groove is provided with a scroll spring. One end of the scroll spring is fixedly connected to the inside of the groove, and the other end of the scroll spring is fixedly connected to the inside of the pump housing.

[0011] Further, in the above technical solution, a water guide plate is obliquely fixedly connected inside the rectangular frame and inside the filter cylinder. Three baffles are fixedly connected in the middle of the conversion cylinder inside the rectangular frame. Water flow grooves are opened on the side walls of the rectangular frame and above the baffles. And the two semi-circular grooves are symmetrically arranged.

[0012] Further, in the above technical solution, the three baffles are respectively arranged between the rectangular frame and the conversion cylinder and between the conversion cylinders. And the side walls of the baffles are in contact with the outer walls of the conversion cylinders.

[0013] In the above technical solution, further, the side walls of the filter cylinder are fixedly connected with rotating rods, which penetrate through the side walls of the side plates. The outer walls of the rotating rods are fixedly connected with driven sprockets. The middle part of the impeller is fixedly connected with a fixed rod, which penetrates through the side wall of the L-shaped plate. The outer wall of the fixed rod is fixedly connected with a driving sprocket. The driving sprocket and the driven sprocket are connected by a chain drive.

[0014] In the above technical solution, further, a scraper is obliquely and fixedly connected inside the rectangular frame between the filter cylinder and the conversion cylinder, and the scraper is obliquely arranged towards one side of the side plate;

[0015] Sewage discharge grooves are formed in the side walls of the rectangular frame at positions corresponding to the scraper and the inner bottom end of the conversion cylinder. A cylinder is fixedly connected between the side wall of the side plate and the inner side of the pump shell. A plug is threadedly connected inside the cylinder.

[0016] In the above technical solution, further, a water storage cavity is formed inside the conversion cylinder. An opening is formed in the outer wall of the conversion cylinder at one end away from the top hole. A limiting plate is hinged inside the opening. An L-shaped spray pipe is fixedly connected inside the conversion cylinder. An electromagnetic valve is arranged on the L-shaped spray pipe, and the electromagnetic valve is electrically connected to the turbidity sensor.

[0017] In the above technical solution, further, the L-shaped spray pipe is communicated with the water storage cavity, and a limiting spring is fixedly connected between the inner side of the water storage cavity and the limiting plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can not only automatically switch according to the working conditions, improve the intelligence of the strong self-priming pump, but also store some water in the water storage cavity when pumping clear water, and then automatically flush the filter cylinder during the conversion process, avoiding affecting the filtering effect of the device and increasing the working efficiency of the strong self-priming pump.

[0020] 2. The present invention can also drive the filter cylinder to rotate during the process of the strong self-priming pump pumping and filtering water with sediment. It can not only drive the outer surface of the filter cylinder to filter sediment in turn to avoid blockage, but also scrape off the sediment filtered by the filter cylinder through the setting of the scraper, further improving the convenience performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall external structure of the strong self-priming pump of the present invention;

[0022] Figure 2 It is a schematic perspective structure diagram of the front part of the strong self-priming pump of the present invention with a partial cutaway;

[0023] Figure 3Schematic perspective view of a partially sectioned side of the pump housing of the present invention;

[0024] Figure 4 Attached to the present invention Figure 2 Schematic enlarged partial structure view at location A in

[0025] Figure 5 Schematic perspective view of the overall external structure of the conversion cylinder and the filter cylinder of the present invention;

[0026] Figure 6 Schematic perspective view of the overall external structure of the driving sprocket and the driven sprocket of the present invention;

[0027] Figure 7 Schematic perspective view of a fully sectioned side of the pump housing of the present invention;

[0028] Figure 8 Schematic perspective view of the top view of the conversion cylinder of the present invention;

[0029] Figure 9 Schematic perspective view of a partially sectioned side of the conversion cylinder of the present invention.

[0030] In the figure: 1, base; 2, driving motor; 3, pump housing; 4, impeller; 5, coupling; 6, water inlet joint; 7, water outlet joint; 8, turbidity sensor; 9, partition board; 10, rectangular frame; 11, upper through hole; 12, filter cylinder; 13, conversion cylinder; 14, lower through hole; 15, water guide plate; 16, top hole; 17, L-shaped plate; 18, side plate; 19, rotating rod; 20, driven sprocket; 21, fixed rod; 22, driving sprocket; 23, chain; 24, baffle; 25, pull rod; 26, semi-circular groove; 27, disc; 28, winding roller; 29, pull rope; 30, telescopic cylinder; 31, pulling block; 32, scraper; 33, groove; 34, scroll spring; 35, water flow groove; 36, sewage discharge groove; 37, cylinder; 38, plug; 39, water storage cavity; 40, opening; 41, limiting plate; 42, L-shaped spray pipe; 43, solenoid valve; 44, limiting spring. Detailed implementation manners

[0031] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0032] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0033] Such as Figures 1-9A strong self-priming intelligent pump shown in the figure includes a base 1. On both sides of the top of the base 1, a driving motor 2 and a pump housing 3 are respectively fixedly connected. An impeller 4 is rotatably connected inside the pump housing 3. A coupling 5 is fixedly connected between the output end of the driving motor 2 and the impeller 4. An inlet joint 6 and an outlet joint 7 are provided on the pump housing 3. The top of the inlet joint 6 is fixedly connected through and penetrated by a turbidity sensor 8. The turbidity sensor 8 uses the optical principle to comprehensively judge the turbidity situation through the light transmittance and scattering rate in the liquid solution. Inside the sensor is an infrared pair of tubes. When light passes through a certain amount of water, the amount of light transmitted depends on the turbidity of the water. The more turbid the water, the less light is transmitted. The light receiving end converts the intensity of the transmitted light into the corresponding current magnitude. If more light is transmitted, the current is large; conversely, if less light is transmitted, the current is small. Then, the current flowing through is converted into a voltage signal through a resistor to detect whether the water entering from the inlet joint 6 needs to be filtered;

[0034] The inside of the pump housing 3 is separated into a U-shaped cavity for transporting liquid through a fixedly connected partition 9. The water entering from the inlet joint 6, driven by the impeller 4, flows through the U-shaped cavity and is discharged from the outlet joint 7. On the side wall of the partition 9 and on the side close to the inlet joint 6, a rectangular frame 10 is fixedly connected. A pair of upper through holes 11 are opened at the top of the rectangular frame 10. Filter cylinders 12 are rotatably connected below the upper through holes 11 inside the rectangular frame 10. Conversion cylinders 13 are rotatably connected outside the filter cylinders 12 inside the rectangular frame 10. Lower through holes 14 are opened on the side walls of the rectangular frame 10 at positions corresponding to the filter cylinders 12. A top hole 16 is opened at the top of the conversion cylinder 13;

[0035] When the strong self-priming pump is pumping water with sediment, the water will flow through the upper through holes 11 into the rectangular frame 10, then fall onto the filter cylinders 12 through the top holes 16, be filtered by the filter cylinders 12 and fall onto the water guide plate 15, and then be discharged from the lower through holes 14 and discharged from the outlet joint 7 under the drive of the impeller 4.

[0036] An L-shaped plate 17 is fixedly connected between the bottom of the rectangular frame 10 and the inner bottom end of the pump housing 3. A side plate 18 is fixedly connected between the top of the L-shaped plate 17 and the inside of the pump housing 3. Pull rods 25 are fixedly connected to the bottom ends of the side walls of the conversion cylinders 13 and penetrate through the side walls of the side plate 18. Through the setting of the pull rods 25, not only the connection between the disc 27 and the conversion cylinder 13 is used, but also the obstruction of the chain 23 can be avoided. Semi-circular grooves 26 are opened on the side walls of the rectangular frame 10 and the side plate 18. Through the semi-circular grooves 26, the rotation of the pull rods 25 is prevented from being obstructed, affecting the normal conversion of the device;

[0037] The side wall of the side plate 18 and the position corresponding to the pull rod 25 are all rotatably connected with a disk 27, and the side wall of the disk 27 is fixedly connected to the pull rod 25, and the side wall of the disk 27 is fixedly connected to the winding roller 28, and the outer wall of the winding roller 28 is wound with a pull rope 29, and the bottom end of the pump housing 3 is fixedly connected to a telescopic cylinder 30, and the output end of the telescopic cylinder 30 is fixedly connected to a pull block 31, one end of the pull rope 29 is fixedly connected to the outer wall of the winding roller 28, and the other end of the pull rope 29 is fixedly connected to the outer wall of the pull block 31, and the telescopic cylinder 30 is electrically connected to the turbidity sensor 8 through the controller;

[0038] The side wall of the winding roller 28 is provided with an inward groove 33, and a spiral spring 34 is provided inside the groove 33. One end of the spiral spring 34 is fixedly connected to the inside of the groove 33, and the other end of the spiral spring 34 is fixedly connected to the inside of the pump housing 3. A water guide plate 15 is obliquely fixedly connected to the inside of the rectangular frame 10 and located inside the filter cylinder 12. Three baffles 24 are fixedly connected to the inside of the rectangular frame 10 and located in the middle of the conversion cylinder 13. Water flow grooves 35 are provided on the side wall of the rectangular frame 10 and above the baffles 24. The two semicircular grooves 26 are symmetrically arranged so that the rotation directions of the two winding rollers 28 are oppositely arranged to avoid being hindered by the chain 23. The three baffles 24 are respectively arranged between the rectangular frame 10 and the conversion cylinder 13 and between the conversion cylinders 13, and the side walls of the baffles 24 are in contact with the outer wall of the conversion cylinder 13.

[0039] When the strong self-priming pump extracts clean water during operation, the turbidity sensor 8 will detect that the extracted water is gradually becoming clear, and then transmit the signal to the controller, which controls the telescopic cylinder 30 to start, and then the telescopic cylinder 30 drives the pull block 31 to slide downward, driving the two pull ropes 29 to move downward. Since the other end of the pull rope 29 is fixedly connected to the outer wall of the winding roller 28, the pull rope 29 will drive the winding roller 28 to rotate when it moves downward, and at the same time, the conversion cylinder 13 is driven to rotate under the drive of the pull rod 25, and the volute spring 34 is gradually driven to rotate and compress, thereby rotating the top hole 16 to the bottom. Then, in the process of the strong self-priming pump extracting clean water, the clean water will pass through the upper through hole 11 into the rectangular frame 10. At this time, the clean water is hindered by the conversion cylinder 13 and will not fall on the filter cylinder 12, so that it will be discharged from the water flow trough 35 under the guidance of the baffle 24, and the obstruction of the filter cylinder 12 can be removed to increase the working efficiency of the strong self-priming pump. When it is necessary to switch back, the above operation can be reversed.

[0040] In order to improve the filtering effect of the device, the side walls of the filter cylinder 12 are fixedly connected with a rotating rod 19 and penetrate the side wall of the side plate 18, the outer wall of the rotating rod 19 is fixedly connected with a driven sprocket 20, the middle part of the impeller 4 is fixedly connected with a fixed rod 21 and penetrates the side wall of the L-shaped plate 17, the outer wall of the fixed rod 21 is fixedly connected with a driving sprocket 22, and the driving sprocket 22 and the driven sprocket 20 are connected by a chain 23;

[0041] When the strong self-priming pump is working, while the drive motor 2 drives the impeller 4 to rotate through the coupling 5, it will drive the fixed rod 21 and the drive sprocket 22 to rotate. Driven by the chain 23, the two driven sprockets 20 rotate, and at the same time drive the rotating rod 19 to rotate, thereby driving the two filter cartridges 12 to rotate, so that the outer surface of the filter cartridge 12 can filter sediment in turn to avoid blockage.

[0042] In order to clean the filter cartridge 12 while converting, a scraper 32 is fixedly connected obliquely inside the rectangular frame 10 and between the filter cartridge 12 and the conversion cylinder 13. Through the arrangement of the scraper 32, the sediment filtered out can be scraped off while the filter cartridge 12 rotates, further improving the convenience performance of the device. And the scraper 32 is arranged obliquely towards the side plate 18, which is convenient for the scraped impurities to move towards the sewage discharge groove 36 and be discharged. Sewage discharge grooves 36 are provided at corresponding positions on the side wall of the rectangular frame 10 and opposite to the scraper 32 and the inner bottom end of the conversion cylinder 13. A cylinder 37 is fixedly connected between the side wall of the side plate 18 and the inner side of the pump housing 3. A plug 38 is threadedly connected inside the cylinder 37;

[0043] A water storage cavity 39 is provided inside the conversion cylinder 13. An opening 40 is provided on the outer wall of the conversion cylinder 13 and away from the top hole 16. A limiting plate 41 is hinged inside the opening 40. An L-shaped spray pipe 42 is fixedly connected inside the conversion cylinder 13. An electromagnetic valve 43 is provided on the L-shaped spray pipe 42, and the electromagnetic valve 43 is electrically connected to the turbidity sensor 8. The L-shaped spray pipe 42 is communicated with the water storage cavity 39. A limiting spring 44 is fixedly connected between the inner side of the water storage cavity 39 and the limiting plate 41;

[0044] When the strong self-priming pump pumps clear water, the controller will rotate the top hole 16 on the conversion cylinder 13 to the bottom. Then, when the clear water flows through the upper through hole 11 and into the rectangular frame 10, under the impact of the water flow, it will push the limiting plate 41 to turn downward, and at the same time compress the limiting spring 44, and then open the opening 40. Then the clear water passes through the opening 40 and enters the water storage cavity 39 to realize the storage of clear water. Then, when the strong self-priming pump pumps water with sediment, the controller will control the top hole 16 on the conversion cylinder 13 to rotate to the top;

[0045] Meanwhile, drive the L-shaped spray pipe 42 to rotate to the bottom. At this time, under the action of the limit spring 44, the limit plate 41 will be pushed to tightly block at the opening 40 to block the opening 40. Subsequently, the controller will control the solenoid valve 43 to open. At the same time, the L-shaped spray pipe 42 is located at the lowest position. Under the action of the pressure, the clear water in the water storage cavity 39 will gradually spray out from the L-shaped spray pipe 42 to realize the cleaning of the filter cartridge 12. At the same time, in cooperation with the rotation of the filter cartridge 12, the comprehensive cleaning of the filter cartridge 12 is realized. Finally, the cleaned water passes through the sewage discharge groove 36 and accumulates between the side plate 18 and the rectangular frame 10. Subsequently, after the operation of the strong self-priming pump is completed, the plug 38 can be unscrewed from the cylinder 37, and the impurities cleaned down can be processed.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A strong self-priming intelligent pump, comprising a base (1), wherein two sides of the top of the base (1) are respectively fixedly connected with a driving motor (2) and a pump casing (3), an impeller (4) is rotatably connected inside the pump casing (3), a coupling (5) is fixedly connected between the output end of the driving motor (2) and the impeller (4), a water inlet joint (6) and a water outlet joint (7) are arranged on the pump casing (3), and the characteristics are as follows: The top of the water inlet joint (6) is fixedly connected through penetration with a turbidity sensor (8). The inner side of the pump housing (3) is partitioned into a U-shaped cavity for conveying liquid by a fixedly connected partition plate (9). On the side wall of the partition plate (9) and close to the water inlet joint (6), a rectangular frame (10) is fixedly connected. A pair of upper through holes (11) are opened at the top of the rectangular frame (10). Inside the rectangular frame (10) and below the upper through holes (11), filter cylinders (12) are rotatably connected. Inside the rectangular frame (10) and outside the filter cylinders (12), conversion cylinders (13) are rotatably connected. Lower through holes (14) are opened at the side walls of the rectangular frame (10) and at positions corresponding to the filter cylinders (12). A top hole (16) is opened at the top of the conversion cylinder (13). A fixing plate (17) is fixedly connected between the bottom of the rectangular frame (10) and the inner bottom end of the pump housing (3). A side plate (18) is fixedly connected between the top of the fixing plate (17) and the inner side of the pump housing (3). At the bottom end of the side wall of the conversion cylinder (13), a pull rod (25) is fixedly connected and penetrates through the side wall of the side plate (18). Semi-circular grooves (26) are opened at the side walls of the rectangular frame (10) and the side plate (18). At positions corresponding to the pull rods (25) on the side wall of the side plate (18), discs (27) are rotatably connected, and the side walls of the discs (27) are fixedly connected to the pull rods (25). Winding rollers (28) are fixedly connected to the side walls of the discs (27). A pulling rope (29) is wound and connected to the outer wall of the winding roller (28). An expansion cylinder (30) is fixedly connected to the inner bottom end of the pump housing (3). The output end of the expansion cylinder (30) is fixedly connected to a pulling block (31). One end of the pulling rope (29) is fixedly connected to the outer wall of the winding roller (28), and the other end of the pulling rope (29) is fixedly connected to the outer wall of the pulling block (31). The expansion cylinder (30) is electrically connected to the turbidity sensor (8) through a controller. Rotating rods (19) are fixedly connected to the side walls of the filter cylinders (12) and penetrate through the side wall of the side plate (18). Driven sprockets (20) are fixedly connected to the outer walls of the rotating rods (19). A fixing rod (21) is fixedly connected to the middle of the impeller (4) and penetrates through the side wall of the fixing plate (17). A driving sprocket (22) is fixedly connected to the outer wall of the fixing rod (21). The driving sprocket (22) and the driven sprocket (20) are connected by a chain (23) for transmission.

2. The strong self-priming intelligent pump according to claim 1, characterized in that: A recessed groove (33) is opened on the side wall of the winding roller (28). Inside the recessed groove (33), a scroll spring (34) is provided. One end of the scroll spring (34) is fixedly connected to the inside of the recessed groove (33), and the other end of the scroll spring (34) is fixedly connected to the inside of the pump housing (3).

3. The self-priming intelligent pump according to claim 1, wherein: Inside the rectangular frame (10) and inside the filter cartridge (12), a water guide plate (15) is fixedly connected obliquely. Inside the rectangular frame (10) and at the middle part of the conversion cylinder (13), three baffles (24) are fixedly connected. And on the side wall of the rectangular frame (10) and above the baffles (24), water flow grooves (35) are provided, and the two semi-circular grooves (26) are symmetrically arranged.

4. The strong self-priming intelligent pump according to claim 3, wherein: And the three baffles (24) are respectively arranged between the rectangular frame (10) and the conversion cylinder (13) and between the conversion cylinders (13), and the side wall of the baffle (24) is in contact with the outer wall of the conversion cylinder (13).

5. The strong self-priming intelligent pump according to claim 1, characterized in that: Inside the rectangular frame (10) and between the filter cartridge (12) and the conversion cylinder (13), a scraping plate (32) is fixedly connected obliquely, and the scraping plate (32) is arranged obliquely towards the side plate (18); On the side wall of the rectangular frame (10) and at the positions corresponding to the scraping plate (32) and the inner bottom end of the conversion cylinder (13), sewage discharge grooves (36) are provided. A cylinder (37) is fixedly connected between the side wall of the side plate (18) and the inner side of the pump housing (3). A plug (38) is threadedly connected inside the cylinder (37).

6. The self-priming intelligent pump according to claim 1, wherein: A water storage cavity (39) is formed inside the conversion cylinder (13). An opening (40) is provided at one end of the outer wall of the conversion cylinder (13) away from the top hole (16). A limiting plate (41) is hingedly connected inside the opening (40). An L-shaped spray pipe (42) is fixedly connected inside the conversion cylinder (13). An electromagnetic valve (43) is provided on the L-shaped spray pipe (42), and the electromagnetic valve (43) is electrically connected to the turbidity sensor (8).

7. The strong self-priming intelligent pump according to claim 6, characterized in that: The L-shaped spray pipe (42) is communicated with the water storage cavity (39), and a limiting spring (44) is fixedly connected between the inside of the water storage cavity (39) and the limiting plate (41).

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