Efficient submersible axial flow pump

Abstract

The utility model provides an efficient submersible axial flow pump which comprises a pump body (1) and is characterized in that a water inlet horn (2) is arranged on one side of the pump body (1), a filter cylinder (4) is arranged on the side close to the water inlet horn (2), a cleaning device (5) is arranged between the water inlet horn (2) and the filter cylinder (4), a motor (3) is arranged on the other side of the pump body (1), and the motor (3) is connected with the water inlet horn (2). A storage device (6) is arranged on one side close to the motor (3); by arranging the cleaning device, impurities and sundries attached to holes in the inner wall and the outer wall of the filter cartridge can be rapidly cleaned, the situation that the filter cartridge is blocked, and normal water flow pumping of the pump body through the filter cartridge is affected is avoided, and the lasting filtering efficiency of the filter cartridge is improved; by arranging the storage device, a cable connected with the motor can be wound on a threaded cylinder along the surface of an annular plate, and the wound cable is intercepted and limited through a limiting rod, so that the cable is quickly stored, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to submersible axial flow pump technical field, concretely relates to a kind of high-efficiency submersible axial flow pump. BACKGROUND

[0002] Submersible axial flow pump is a kind of water pump by circulating flow and centrifugal force interaction, for extracting and pushing large amount of water from water source to required position, pumping efficiency is high, applicable to low-lift, large-flow occasions, such as farmland irrigation, urban water supply and drainage etc.

[0003] The existing high-efficiency submersible axial flow pump is mostly installed filter cartridge on water inlet horn to filter impurities and sundries contained in inhaled water flow during use, then pump body is placed in water together with filter cartridge, subsequently motor is started, so that motor drives impeller inside pump body to rotate, liquid is filtered after passing through filter cartridge and enters water inlet horn inside and contacts with impeller, liquid is forced to flow in axial direction under the action of centrifugal force of blade, and is transported out along pump axis direction, to achieve extraction and transportation of water flow.

[0004] But as filter cartridge filters impurities and sundries in water, impurities and sundries can be attached to inner wall and outer wall position of filter cartridge and accumulated, causing filter cartridge to be blocked, affecting the extraction amount of water flow by pump body through filter cartridge, and simultaneously, if wire connected with motor of pump body is not well stored, security risk is prone to be generated.

[0005] Therefore, it is urgent to provide a new scheme to solve the defects and deficiencies in the above-mentioned prior art. CONTENT OF UTILITY MODEL

[0006] In order to solve the defects and deficiencies in the above-mentioned prior art, the utility model provides a kind of high-efficiency submersible axial flow pump.

[0007] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A kind of high-efficiency submersible axial flow pump, including pump body, its characterized in that: the side of the pump body is provided with water inlet horn, the side close to the water inlet horn is provided with filter cartridge, cleaning device is arranged between the water inlet horn and filter cartridge, the other side of the pump body is provided with motor, the side close to the motor is provided with storage device.

[0009] As a further preferred embodiment of the utility model, the cleaning device includes an annular cylinder fixedly connected with the water inlet horn, a threaded hole is formed in the inside of the annular cylinder, the filter cartridge is located in the inside of the annular cylinder and is slidably connected with the annular cylinder, a circular hole is formed in the inside of the filter cartridge, a bolt is inserted into the circular hole and the threaded hole in a matching manner, and the bolt is threadedly connected with the inner wall of the threaded hole.

[0010] As a further preferred embodiment of the present utility model, one side of the annular cylinder is fixedly connected with an electric telescopic rod, an output end of the electric telescopic rod is fixedly connected with a connecting plate, the connecting plate is fixedly connected with a circular ring, the circular ring is sleeved on the outer periphery of the filter cylinder, and the inner wall of the circular ring is attached to the surface of the filter cylinder.

[0011] As a further preferred embodiment of the present utility model, the surface of the circular ring is fixedly connected with a plurality of rectangular cylinders, the inner wall of each rectangular cylinder is slidably connected with a spring rod, the outer periphery of the spring rod is sleeved with a spring, one end of the spring is fixedly connected with the inner wall of the rectangular cylinder, the other end of the spring is fixedly connected with a scraping block, the scraping block is slidably connected with the rectangular cylinder, one end of the spring rod away from the scraping block is fixedly connected with a baffle, the outer diameter of the baffle is greater than the inner diameter of the rectangular cylinder, and the plurality of scraping blocks correspond to the positions of the inner walls of the plurality of holes of the filter cylinder respectively.

[0012] As a further preferred embodiment of the present utility model, one side of the baffle away from the spring rod is fixedly connected with a rubber block, and the rubber block is in a cylindrical shape.

[0013] As a further preferred embodiment of the present utility model, one side of the circular ring is fixedly connected with a scraping ring, the scraping ring is sleeved on the outer periphery of the filter cylinder, and the inner wall of the scraping ring is attached to the surface of the filter cylinder.

[0014] As a further preferred embodiment of the present utility model, one end of the bolt is fixedly connected with a twisting block, and the outer edge of the twisting block is provided with a plurality of anti-skid protrusions.

[0015] As a further preferred embodiment of the present utility model, the storage device comprises an annular plate, the annular plate is fixedly sleeved on the outer periphery of the motor, one side of the annular plate is fixedly connected with a threaded cylinder, the surface of the threaded cylinder is sleeved with a circular hole ring, the inside of the threaded cylinder is threadedly connected with a screw rod, one end of the screw rod is fixedly connected with an operating block, and the outer diameter of the operating block is greater than the inner diameter of the mounting hole corresponding to the screw rod on the circular hole ring.

[0016] As a further preferred embodiment of the present utility model, one side of the circular hole ring is fixedly connected with a limiting rod, and the outer edge of the limiting rod is attached to the surface of the annular plate.

[0017] As a further preferred embodiment of the present utility model, the outer edge of the operating block is fixedly connected with a plurality of anti-skid strips, and the plurality of anti-skid strips are arranged at equal distances.

[0018] Compared with the prior art, the present utility model has the advantages and positive effects including:

[0019] 1) The utility model provides a high -efficient submersible axial -flow pump, through being provided with cleaning device, can carry out quick cleaning to the impurity and sundries of filter cartridge inner wall and outer wall hole position adhesion, has reduced the impurity and sundries adhesion in filter cartridge outer wall and has produced the accumulation after filter cartridge in water impurity and sundries carry out the filtration, causes filter cartridge to be blocked, has influenced pump body through filter cartridge to water flow normal extraction condition, has improved filter cartridge's lasting filtering efficiency.

[0020] 2) The utility model provides a high -efficient submersives axial -flow pump, through being provided with storage device, can with motor connection cable is along annular plate surface winding on screw thread cylinder, and through the intercepting limiting of limiting rod to winding cable, further reach the quick storage of cable, reduce the security hidden danger. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0022] Figure 2 It is the local structure schematic diagram of annular cylinder of the utility model;

[0023] Figure 3 It is the local structure schematic diagram of circular ring of the utility model;

[0024] Figure 4 It is the local structure schematic diagram of scraper block of the utility model;

[0025] Figure 5 It is the local structure schematic diagram of annular plate of the utility model.

[0026] Legend: 1, pump body; 2, water inlet horn; 3, motor; 4, filter cartridge; 5, cleaning device; 51, annular cylinder; 52, screw hole; 53, circular hole; 54, bolt; 55, twist block; 56, electric telescopic rod; 57, circular ring; 58, connecting plate; 59, rectangular cylinder; 510, scraper ring; 511, spring rod; 512, scraper block; 513, baffle; 514, rubber block; 6, storage device; 61, annular plate; 62, screw thread cylinder; 63, screw rod; 64, operating block; 65, non-slip strip; 66, round hole ring; 67, limiting rod. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0028] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and so on indicate the position relation or position relation based on the position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] [the first embodiment]

[0031] Refer to Figures 1-5 As shown in the utility model first embodiment disclosed a kind of high-efficiency submersible axial flow pump, as shown in Figure 1 Side of pump body 1 is provided with water inlet horn 2, filter cartridge 4 is arranged on the side close to water inlet horn 2, cleaning device 5 is arranged between water inlet horn 2 and filter cartridge 4, motor 3 is arranged on the other side of pump body 1, storage device 6 is arranged on the side close to motor 3, filter cartridge 4 is installed on water inlet horn 2 to filter the impurities and sundries contained in the water flow sucked in, then pump body 1 is put into water together with filter cartridge 4, and then motor 3 is started, so that motor 3 drives the impeller inside pump body 1 to rotate, so that the liquid is filtered by filter cartridge 4 and enters the inside of water inlet horn 2 and contacts with the impeller, is forced to flow in axial direction by centrifugal force of blade, is transported along the direction of pump axis, achieves the extraction and transportation of liquid, by being provided with cleaning device, the impurities and sundries adhered to the inner wall and the hole position of filter cartridge can be quickly cleaned, avoid filter cartridge being blocked, improve the persistent filtering efficiency of filter cartridge, and by being provided with storage device, the cable connected with motor can be wound on threaded cylinder along the surface of annular plate, and the wound cable is intercepted and limited by limiting rod, so as to achieve the quick storage of cable and reduce the security risk.

[0032] As Figures 2-4As shown, the cleaning device 5 in the embodiment includes an annular cylinder 51 fixedly connected with the water inlet horn 2, a threaded hole 52 is formed in the inside of the annular cylinder 51, the filter cylinder 4 is located in the inside of the annular cylinder 51 and is slidably connected with the annular cylinder 51, a circular hole 53 is formed in the inside of the filter cylinder 4, a bolt 54 is inserted into the circular hole 53 and the threaded hole 52 and is threadedly connected with the inner wall of the threaded hole 52, the filter cylinder 4 is manually moved, when the filter cylinder 4 is moved to the position inserted into the inside of the annular cylinder 51, the surface of the filter cylinder 4 is attached to the inner wall of the circular ring 57, the inner wall of the circular hole 53 is coincided with the inner wall of the threaded hole 52, at this time, the bolt 54 is manually rotated to be inserted into the inside of the threaded hole 52 and the circular hole 53 to fix the position of the filter cylinder 4, the assembly and fixation of the filter cylinder 4 and the annular cylinder 51 are achieved. As a preferred, one end of the bolt 54 is fixedly connected with a knob 55, a plurality of anti-skid protrusions are arranged on the outer edge of the knob 55, by arranging the knob 55, the contact area of the bolt 54 can be increased, the bolt 54 can be conveniently rotated by manually rotating the knob 55.

[0033] One side of the annular cylinder 51 is fixedly connected with an electric telescopic rod 56, the output end of the electric telescopic rod 56 is fixedly connected with a connecting plate 58, the connecting plate 58 is fixedly connected with the circular ring 57, the circular ring 57 is sleeved on the outer periphery of the filter cylinder 4, the inner wall of the circular ring 57 is attached to the surface of the filter cylinder 4, when the surface of the filter cylinder 4 is attached with impurities or sundries, the electric telescopic rod 56 is started to drive the connecting plate 58 to move up and down, the connecting plate 58 drives the circular ring 57 to move up and down attached to the surface of the filter cylinder 4 and scrapes off the impurities and sundries attached to the surface of the filter cylinder 4, the impurities and sundries attached to the outer wall of the filter cylinder 4 are quickly cleaned, the filter cylinder 4 is prevented from being blocked, the filtering effect of the filter cylinder 4 and the convenience of cleaning sundries are improved.

[0034] As shown in the drawings, Figures 3-4As shown, the surface of the circular ring 57 is fixedly connected with a plurality of rectangular tubes 59, the inner wall of each rectangular tube 59 is slidingly connected with a spring rod 511, the outer periphery of the spring rod 511 is sleeved with a spring, one end of the spring is fixedly connected with the inner wall of the rectangular tube 59, the other end of the spring is fixedly connected with a scraping block 512, the scraping block 512 is slidingly connected with the rectangular tube 59, the end of the spring rod 511 away from the scraping block 512 is fixedly connected with a baffle 513, the outer diameter of the baffle 513 is greater than the inner diameter of the rectangular tube 59, a plurality of scraping blocks 512 correspond to the positions of the inner walls of a plurality of holes of the filter cartridge 4 respectively, by arranging the scraping block 512, when the filter cartridge 4 moves to the position of being inserted into the inside of the circular ring 57, the filter cartridge 4 extrudes the surfaces of the plurality of scraping blocks 512, so that the plurality of scraping blocks 512 move to the inside of the rectangular tube 59 and extrude the spring to contract, when the filter cartridge 4 moves to the positions corresponding to the inner walls of the plurality of holes of the filter cartridge 4, under the elastic force of the spring in the spring rod 511, the plurality of spring rods 511 push the plurality of scraping blocks 512 into the inside of the plurality of holes of the filter cartridge 4 respectively, when the circular ring 57 cleans the adhered impurities and sundries along the surface of the filter cartridge 4, the plurality of scraping blocks 512 are driven to move, so that the plurality of scraping blocks 512 move up and down in the plurality of holes of the filter cartridge 4 and scrape off the adhered or accumulated impurities and sundries, which further improves the cleaning effect of the filter cartridge 4.

[0035] As preferred, the side of the baffle 513 away from the spring rod 511 is fixedly connected with a rubber block 514, the rubber block 514 is cylindrical, by arranging the rubber block 514, the rubber block 514 can intercept sundries in the liquid, reduce the collision between the sundries and the surface of the baffle 513 or the rectangular tube 59, cause damage to the baffle 513 and the rectangular tube 59, and affect the use. At the same time, one side of the circular ring 57 is fixedly connected with a scraping ring 510, the scraping ring 510 is sleeved on the outer periphery of the filter cartridge 4, the inner wall of the scraping ring 510 is attached to the surface of the filter cartridge 4, by arranging the scraping ring 510, the scraping ring 510 can scrape off the adhered impurities and sundries with strong adhesion by attaching to the surface of the filter cartridge 4, which improves the cleaning efficiency of the surface of the filter cartridge 4.

[0036] As Figure 5As shown, the storage device 6 in the embodiment includes an annular plate 61 fixedly sleeved on the outer periphery of the motor 3, one side of the annular plate 61 is fixedly connected with a threaded cylinder 62, the surface of the threaded cylinder 62 is sleeved with a circular hole ring 66, the inside of the threaded cylinder 62 is threadedly connected with a screw rod 63, one end of the screw rod 63 is fixedly connected with an operating block 64, the outer diameter of the operating block 64 is greater than the inner diameter of the mounting hole on the circular hole ring 66 corresponding to the screw rod 63, by arranging the storage device 6, the cable connected with the motor 3 can be wound on the threaded cylinder 62 along the surface of the annular plate 61, then the circular hole ring 66 is manually moved, when the circular hole ring 66 is moved to the position sleeved on the surface of the threaded cylinder 62, the circular hole ring 66 is made to be in surface contact with the cable on the annular plate 61, at this time, the operating block 64 is manually rotated, so that the operating block 64 drives the screw rod 63 to rotate, so that the screw rod 63 moves up and down along the inside of the threaded cylinder 62, when the operating block 64 moves to the position of pressing the surface of the circular hole ring 66, the circular hole ring 66 is made to move towards the annular plate 61, so that the circular hole ring 66 cooperates with the annular plate 61 to press and fix the cable wound in the inside, thereby achieving the quick storage of the cable, improving the safety of the cable, and reducing the safety hazard.

[0037] As preferred, one side of the circular hole ring 66 is fixedly connected with a limiting rod 67, the outer edge of the limiting rod 67 is in surface contact with the annular plate 61, by arranging the limiting rod 67, the limiting rod 67 can assist in intercepting the wound cable, reducing the loosening of the wound cable; the outer edge of the operating block 64 is fixedly connected with a plurality of anti-skid strips 65, the plurality of anti-skid strips 65 are arranged at equal distances, by arranging the anti-skid strips 65, the anti-skid strips 65 can increase the friction between the hands and the surface of the operating block 64, reducing the hand slip when manually rotating the operating block 64.

[0038] The specific working process of the embodiment is as follows:

[0039] The filter cartridge 4 is installed on the water inlet horn 2 to filter the impurities and sundries contained in the water flow, then the pump body 1 is put into the water together with the filter cartridge 4, then the motor 3 is started, so that the motor 3 drives the impeller in the pump body 1 to rotate, so that the liquid is filtered through the filter cartridge 4 and then enters the inside of the water inlet horn 2 to contact the impeller, the liquid is forced to flow in the axial direction under the action of the centrifugal force of the blade, and is delivered along the pump axis direction, achieving the extraction and delivery of the liquid.

[0040] When the cleaning device is used, first manually move the filter cartridge 4, when the filter cartridge 4 is moved to the position inside the ring 57, make the filter cartridge 4 extrude the surface of the plurality of scraping blocks 512, so that the plurality of scraping blocks 512 are all moved to the inside of the rectangular cylinder 59 and extrude the spring, when the filter cartridge 4 is moved to the position corresponding to the plurality of scraping blocks 512 and the inner wall of the plurality of holes on the filter cartridge 4, under the elastic reaction force of the spring in the spring rod 511, make the plurality of spring rods 511 respectively push the plurality of scraping blocks 512 into the plurality of holes inside the filter cartridge 4, when the filter cartridge 4 is moved to the position inside the ring-shaped cylinder 51, make the surface of the filter cartridge 4 fit the inner wall of the ring 57, make the inner wall of the circular hole 53 coincide with the inner wall of the threaded hole 52, at this time manually rotate the knob 55, make the knob 55 drive the bolt 54 to rotate, make the bolt 54 rotate into the threaded hole 52 and the circular hole 53 inside the filter cartridge 4 to fix the position, achieve the assembly and fixation of the filter cartridge 4 and the ring-shaped cylinder 51, when the surface of the filter cartridge 4 is attached with impurities or sundries, start the electric telescopic rod 56, make the electric telescopic rod 56 drive the connecting plate 58 to move up and down, make the connecting plate 58 drive the ring 57 to move up and down and scrape off the impurities and sundries attached to the surface of the filter cartridge 4, at the same time the ring 57 drives the plurality of scraping blocks 512 to move, make the plurality of scraping blocks 512 move up and down along the plurality of holes inside the filter cartridge 4 and scrape off the impurities and sundries attached or accumulated inside, thereby achieving the rapid cleaning of the impurities and sundries attached to the outer wall and the inside of the hole of the filter cartridge 4.

[0041] When the storage device is used, first wind the cable connected with the motor 3 on the threaded cylinder 62 along the surface of the ring-shaped plate 61, at this time manually move the circular hole ring 66, when the circular hole ring 66 is moved to the position sleeved on the surface of the threaded cylinder 62, make the circular hole ring 66 fit the surface of the cable on the ring-shaped plate 61, at this time manually rotate the operating block 64, make the operating block 64 drive the screw rod 63 to rotate, make the screw rod 63 move up and down inside the threaded cylinder 62, when the operating block 64 is moved to the position extruding the surface of the circular hole ring 66, make the circular hole ring 66 move to the direction close to the ring-shaped plate 61, make the circular hole ring 66 cooperate with the ring-shaped plate 61 to extrude and fix the cable wound inside, at the same time the limiting rod 67 on the circular hole ring 66 intercepts the wound cable, thereby achieving the rapid storage of the cable.

[0042] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical content of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A high efficiency submersible axial flow pump comprising a pump body (1) characterised in that: The side of the pump body (1) is provided with a water inlet horn (2), the side close to the water inlet horn (2) is provided with a filter cylinder (4), the water inlet horn (2) and the filter cylinder (4) are provided with a cleaning device (5), the other side of the pump body (1) is provided with a motor (3), and the side close to the motor (3) is provided with a storage device (6).

2. A high efficiency submersible mixed flow pump as claimed in claim 1 wherein: The cleaning device (5) comprises an annular cylinder (51) fixedly connected with the water inlet horn (2), a threaded hole (52) is formed in the inside of the annular cylinder (51), the filter cylinder (4) is located in the inside of the annular cylinder (51) and is in sliding insertion connection with the annular cylinder (51), a circular hole (53) is formed in the inside of the filter cylinder (4), a bolt (54) is in plug-in cooperation with the circular hole (53) and the threaded hole (52), and the bolt (54) is in threaded connection with the inner wall of the threaded hole (52).

3. A high efficiency submersible mixed flow pump as claimed in claim 2 wherein: The annular cylinder (51) is fixedly connected with an electric telescopic rod (56) on one side, the output end of the electric telescopic rod (56) is fixedly connected with a connecting plate (58), the connecting plate (58) is fixedly connected with a circular ring (57), the circular ring (57) is sleeved on the outer periphery of the filter cylinder (4), and the inner wall of the circular ring (57) is attached to the surface of the filter cylinder (4).

4. A high efficiency submersible mixed flow pump as claimed in claim 3 wherein: The surface of the circular ring (57) is fixedly connected with a plurality of rectangular cylinders (59), the inner wall of each rectangular cylinder (59) is slidingly connected with a spring rod (511), the outer periphery of the spring rod (511) is sleeved with a spring, one end of the spring is fixedly connected with the inner wall of the rectangular cylinder (59), the other end of the spring is fixedly connected with a scraping block (512), the scraping block (512) is in sliding connection with the rectangular cylinder (59), the end of the spring rod (511) away from the scraping block (512) is fixedly connected with a baffle (513), the outer diameter of the baffle (513) is larger than the inner diameter of the rectangular cylinder (59), and the plurality of scraping blocks (512) correspond to the positions of the inner walls of a plurality of holes of the filter cylinder (4) respectively.

5. A high efficiency submersible mixed flow pump as claimed in claim 4 wherein: The side, away from the spring rod (511), of the baffle (513) is fixedly connected with a rubber block (514), and the rubber block (514) is in a cylindrical shape.

6. A high efficiency submersible mixed flow pump as claimed in claim 3 wherein: The side of the circular ring (57) is fixedly connected with a scraping ring (510), the scraping ring (510) is sleeved on the outer periphery of the filter cylinder (4), and the inner wall of the scraping ring (510) is attached to the surface of the filter cylinder (4).

7. The high-efficiency submersible mixed-flow pump of claim 2, wherein: One end of the bolt (54) is fixedly connected with a twisting block (55), and the outer edge of the twisting block (55) is provided with a plurality of anti-skid protrusions.

8. The high-efficiency submersible mixed-flow pump of claim 1, wherein: The storage device (6) comprises an annular plate (61), the annular plate (61) is fixedly sleeved on the outer periphery of the motor (3), one side of the annular plate (61) is fixedly connected with a threaded cylinder (62), the surface of the threaded cylinder (62) is sleeved with a circular hole ring (66), the inside of the threaded cylinder (62) is in threaded connection with a screw rod (63), one end of the screw rod (63) is fixedly connected with an operation block (64), and the outer diameter of the operation block (64) is larger than the inner diameter of the mounting hole corresponding to the screw rod (63) on the circular hole ring (66).

9. A high efficiency submersible mixed flow pump as claimed in claim 8, wherein: One side of the round hole ring (66) is fixedly connected with a limiting rod (67), and the outer edge of the limiting rod (67) is attached to the surface of the annular plate (61).

10. The high-efficiency submersible mixed-flow pump of claim 8, wherein: The outer edge of the operation block (64) is fixedly connected with a plurality of anti-skid strips (65), and the plurality of anti-skid strips (65) are arranged at equal distances.

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