Water suction pump

Abstract

The invention discloses a water suction pump which comprises a driving motor and a pump shell, the axial end of the pump shell is connected with a water inlet pipe, the periphery of the pump shell is connected with a water outlet pipe, the driving motor is located on the side, away from the water inlet pipe, of the pump shell, and an impeller is rotationally arranged in the pump shell and comprises a rotating shaft, a fixing plate, a mounting plate, a connecting rod and blades. The driving motor is in driving connection with the rotating shaft, the mounting plate and the fixing plate are arranged in parallel, a connecting rod is connected between the fixing plate and the mounting plate, the rotating shaft penetrates through the circle center position of the fixing plate and is fixedly connected with the fixing plate, and the part, located between the fixing plate and the mounting plate, of the rotating shaft is provided with an adjusting mechanism; a water inlet is formed in the middle of the mounting plate. The angle of the blades in the impeller can be adjusted to change the lift of the pump.

Description

Technical Field

[0001] The present invention relates to the technical field of pumps, and more particularly to a water pump. Background Art

[0002] Some remote mountainous areas are often short of water and electricity. A particular problem in pumping water in remote mountainous areas is the need for electricity. Solar energy is a green and clean energy. Using solar power to drive water pumps to pump water from low water sources to high places for use is a good solution. Due to the complex water use environment in mountainous areas, a water pump may need to supply water to locations at different heights. At present, the installation angle of the impeller and blades of the water pump has been fixed during the production process and can no longer be adjusted according to various needs in actual use, so it cannot meet the application in mountainous areas. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a water pump.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] The present invention discloses a water pump, comprising a driving motor and a pump casing. An axial end of the pump casing is connected to a water inlet pipe, and an outer periphery of the pump casing is connected to a water outlet pipe. The driving motor is located at a side of the pump casing away from the water inlet pipe. An impeller is rotatably arranged in the pump casing. The impeller comprises a rotating shaft, a fixed plate, a mounting plate, a connecting rod, and blades. The rotating shaft extends out of the pump casing and is connected to the rotating shaft by the driving motor. The mounting plate and the fixed plate are arranged in parallel. A connecting rod is connected between the fixed plate and the mounting plate. The rotating shaft passes through the center position of the fixed plate and is fixedly connected to the fixed plate. An adjusting mechanism is installed on the portion of the rotating shaft located between the fixed plate and the mounting plate, and a plurality of blades are installed on the adjusting mechanism. A water inlet is opened in the middle of the mounting plate.

[0006] Furthermore, the adjustment mechanism includes a mounting sleeve, a mounting cavity 1 is opened in the mounting sleeve, the inner end of the blade is connected to the center shaft, the center shaft is rotatably arranged on the side wall of the mounting sleeve, the inner end of the center shaft extends into the mounting cavity 1 and is connected to a transmission bevel gear, a support ring is rotatably arranged in the mounting cavity 1, a gear block is arranged on the support ring, the gear block can engage with the transmission bevel gear, the inner circumference of the support ring is connected to a gear ring 1, an adjustment motor is arranged in the mounting cavity 1, the adjustment motor drive is connected to a drive gear 1, and the drive gear 1 can engage with the gear ring 1.

[0007] Furthermore, two support rings are provided and are respectively located on the upper and lower sides of the transmission bevel gear, the tooth block on the upper support ring is installed on the lower side, and the tooth block on the lower support ring is installed on the upper side, the tooth block on the upper support ring and the tooth block on the lower support ring are staggered, and also include a lifting mechanism, which can drive the adjustment motor to lift and lower, so that the driving gear 1 is respectively meshed with the upper gear ring 1 or the lower gear ring 1.

[0008] Furthermore, the upper and lower parts of the regulating motor are respectively provided with clamping blocks, and the clamping blocks can be engaged with the gear ring.

[0009] Furthermore, the lifting mechanism includes a screw motor and a screw rotatably arranged in the installation cavity, the screw is arranged along the axial direction of the rotating shaft, the screw motor drives the connected screw, a screw slider is arranged on the screw, and the adjustment motor is installed on the screw slider.

[0010] Furthermore, a second installation cavity and an opening are provided in the installation plate, the second installation cavity is connected to the opening, the opening is connected to the water inlet, an adjustment plate is slidably arranged in the opening, and a part of the adjustment plate is located in the water inlet.

[0011] Furthermore, one end of the adjustment plate located in the second installation cavity is connected to a movable block, a guide rail is provided on the upper part of the second installation cavity, the movable block is slidably connected to the guide rail, a plurality of racks are provided at the lower part of the movable block, a rotating disk is rotatably provided in the second installation cavity, the rotating disk is located below the adjustment plate, a spiral groove is provided on the upper part of the rotating disk, the rack is provided in the spiral groove, a rotating mechanism is provided in the second installation cavity, the rotating mechanism includes a rotating motor, the rotating motor is driven and connected to a driving gear 2, a gear ring 2 is provided below the rotating disk, and the driving gear 2 is meshed with the gear ring 2.

[0012] Furthermore, the adjustment plate is fan-shaped, a mounting groove is provided on a side of the adjustment plate, a sealing film is connected between the side surfaces of adjacent adjustment plates, and an end of the sealing film is installed in the mounting groove.

[0013] Furthermore, a moving frame is provided in the second installation cavity, and a moving block is slidably provided in the moving frame. The sliding direction of the moving block is the radial direction of the second installation cavity. A spring 1 is connected to the moving block, and the other end of the spring 1 is connected to the outer side of the moving frame. A plurality of triggers are installed on the side of the moving frame.

[0014] The beneficial effect of the present invention is that the angle of the blades is adjusted by the adjusting mechanism, so that the pump head can be changed and the operation efficiency of the pump is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the water pump in this embodiment;

[0016] Figure 2 is a cross-sectional view of the impeller in this embodiment;

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 is a cross-sectional view of the impeller in this embodiment;

[0019] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;

[0020] Figure 6 is a cross-sectional view of the mounting plate in this embodiment;

[0021] Figure 7 is a cross-sectional view of the mounting plate in this embodiment;

[0022] Figure 8 is a schematic diagram of the installation of the trigger in this embodiment;

[0023] Fig. 9 Schematic diagram of the structure of the adjustment plate in this embodiment.

[0024] Figure numerals: 1, driving motor; 2, pump housing; 3, water inlet pipe; 4, water outlet pipe; 5, rotating shaft; 6, fixing plate; 7, mounting plate; 8, connecting rod; 9, blade; 10, adjusting mechanism; 11, water inlet; 12, adjusting plate; 13, central axis; 14, driving bevel gear; 15, mounting sleeve; 16, mounting cavity 1; 17, supporting seat; 18, supporting ring; 19, gear ring 1; 20, gear block; 21, screw motor; 22, screw; 23, screw slider; 24, adjusting motor; 25, driving gear 1; 26, Block; 27, rotating seat; 28, supporting shaft; 29, lifting mechanism; 30, sealing sleeve; 31, rotating mechanism; 32, movable block; 33, rotating disk; 34, spiral groove; 35, mounting cavity II; 36, opening; 37, guide rail; 38, rack; 39, rotating motor; 40, gear ring II; 41, driving gear II; 42, moving frame; 43, moving block; 44, spring I; 45, trigger; 46, sealing ring; 47, mounting groove; 48, sealing membrane; 49, mounting column; 50, moving column; 51, spring II. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 9As shown, a water pump comprises a driving motor 1 and a pump casing 2. An axial end of the pump casing 2 is connected to a water inlet pipe 3, and the outer periphery of the pump casing 2 is connected to a water outlet pipe 4. The driving motor 1 is located on a side of the pump casing 2 away from the water inlet pipe 3. An impeller is rotatably arranged in the pump casing 2. The impeller comprises a rotating shaft 5, a fixing plate 6, a mounting plate 7, a connecting rod 8, and blades 9. The rotating shaft 5 extends out of the pump casing 2, and the driving motor 1 drives the rotating shaft 5.

[0027] like Figure 2 As shown, the mounting plate 7 and the fixed plate 6 are arranged in parallel, and a connecting rod 8 is connected between the fixed plate 6 and the mounting plate 7. The connecting rod 8 is located at the peripheral edge of the fixed plate 6 and the mounting plate 7. The rotating shaft 5 passes through the center of the fixed plate 6 and is fixedly connected to the fixed plate 6. The portion of the rotating shaft 5 located between the fixed plate 6 and the mounting plate 7 is installed with an adjusting mechanism 10, and a plurality of blades 9 are installed on the adjusting mechanism 10. The adjusting mechanism 10 can adjust the angle of the blade 9, and a water inlet 11 is opened in the middle of the mounting plate 7. The blade 9 is driven to rotate by the adjusting mechanism 10, and the angle of the blade 9 is adjusted, so that the contact surface between the blade 9 and the water is changed, thereby changing the head of the pump and improving the efficiency of pumping water.

[0028] like Figure 3 , Figure 4 , Figure 5 As shown, the adjustment mechanism 10 includes a mounting sleeve 15, a mounting cavity 16 is provided in the mounting sleeve 15, the inner end of the blade 9 is connected to the central shaft 13, the central shaft 13 is rotatably arranged on the side wall of the mounting sleeve 15, the inner and outer sides of the side wall of the mounting sleeve 15 are provided with sealing sleeves 30, the central shaft 13 passes through the sealing sleeve 30 and is rotatably connected with the sealing sleeve 30, the inner end of the central shaft 13 extends into the mounting cavity 16 and is connected with the transmission bevel gear 14, the mounting cavity 16 is rotatably provided with a support ring 18, the support ring 18 is provided with a tooth block 20, the tooth block 20 can mesh with the transmission bevel gear 14, the inner circumference of the support ring 18 is connected with a tooth ring 19, the mounting cavity 16 is provided with an adjustment motor 24, the adjustment motor 24 is driven and connected with a driving gear 1 25, and the driving gear 1 25 can mesh with the tooth ring 19. The adjustment motor 24 drives the driving gear 1 25 to rotate, and the driving gear 1 25 drives the support ring 18 to rotate through the tooth ring 19. The support ring 18 drives the transmission bevel gear 14 to rotate through the gear block 20, thereby rotating the blade 9 to change the angle. The angle between the blade 9 and the horizontal plane becomes larger, so that the area of ​​the blade 9 in contact with the water becomes larger, thereby improving the efficiency of the pump and also increasing the pump head.

[0029] Two support rings 18 are provided and are respectively located on the upper and lower sides of the transmission bevel gear 14. The two support rings 18 are symmetrically arranged with the axial direction of the transmission bevel gear 14 as the center line. The tooth block 20 on the upper support ring 18 is installed on the lower side, and the tooth block 20 on the lower support ring 18 is installed on the upper side. The tooth block 20 on the upper support ring 18 and the tooth block 20 on the lower support ring 18 are staggered, so that the tooth block 20 on the upper support ring 18 and the tooth block 20 on the lower support ring 18 are respectively meshed with one of the two adjacent transmission bevel gears 14. It also includes a lifting mechanism 29, which can drive the adjusting motor 24 to rise and fall, so that the driving gear 25 is respectively meshed with the upper gear ring 19 or the lower gear ring 19.

[0030] The upper and lower parts of the installation cavity 16 are both provided with support seats 17 , and the support ring 18 is rotatably provided on the support seats 17 .

[0031] The area of ​​the blade 9 acting on the water increases, and the reaction force of the water on the blade 9 also increases accordingly, making it easy to be damaged. By setting two support rings 18 to act on adjacent blades 9 respectively, the loss of the blades 9 can be balanced, thereby extending the overall use efficiency of the blades 9. The specific method is to drive the adjustment motor 24 to rise and fall through the lifting mechanism 29, so that the driving gear 25 is meshed with the upper gear ring 19 or the lower gear ring 19. When the driving gear 25 is meshed with the lower gear ring 19, the driving gear 25 drives the support ring 18 to rotate through the lower gear ring 19, and the tooth block 20 on the support ring 18 acts on the corresponding transmission bevel gear 14, thereby driving the corresponding blade 9 to rotate to adjust the angle. There is no tooth block 20 on the support ring 18 below the transmission bevel gear 14 connected to the adjacent blades 9 for cooperation, so it will not rotate and can be in a standby state. When the angle of the adjacent blades 9 needs to be adjusted, the adjusting motor 24 is driven up by the lifting mechanism 29, so that the driving gear 25 is engaged with the upper gear ring 19, and then the upper support ring 18 can be driven to rotate so that the corresponding gear block 20 drives the adjacent blades 9 to rotate.

[0032] Adjacent blades 9 can be adjusted to the same angle to obtain the maximum pumping power. They can also be at different angles to reduce the wear of blades 9 with smaller inclinations, and then the inclinations of adjacent blades 9 are alternately changed to cooperate with each other to reduce overall wear.

[0033] like Figure 3As shown, in order to ensure that the angle of another group of blades 9 is maintained when the angles of adjacent blades 9 are alternately adjusted, mounting posts 49 are respectively installed at the upper and lower parts of the adjusting motor 24, and a moving post 50 is slidably installed in the mounting post 49. A spring 251 is connected between the moving post 50 and the mounting post 49, and a clamping block 26 is connected to the end of the moving post 50 away from the mounting post 49, and the clamping block 26 can be engaged with the gear ring 19. When the driving gear 1 25 is meshed with the gear ring 19 below, the lower clamping block 26 does not engage with the gear ring 19 below, and the upper clamping block 26 remains engaged with the gear ring 19 above, and the moving post 50 is in a state of extending from the mounting post 49. In the process of the adjusting motor 24 driving the driving gear 1 25 to rise, the clamping block 26 can immediately engage with the gear ring 19 below to fix the position of the blade 9. At this time, due to the action of the spring 2 51, the upper block 26 remains engaged with the upper gear ring 19, and the upper moving column 50 gradually retracts into the upper mounting column 49. As the driving gear 1 25 continues to rise, when the moving column 50 is completely retracted into the mounting column 49, the upper end of the mounting column 49 pushes the block 26 up to disengage it from the gear ring 19, and the driving gear 1 25 also immediately engages with the upper gear ring 19. In this process, the lower moving column 50 gradually extends from the lower mounting column 49, while the lower block 26 remains engaged with the lower gear ring 19.

[0034] The lifting mechanism 29 includes a screw motor 21 and a screw 22 rotatably arranged in the installation cavity 16. The screw 22 is arranged along the axial direction of the rotating shaft 5. The screw motor 21 drives the screw 22. A screw slider 23 is arranged on the screw 22. The adjustment motor 24 is installed on the screw slider 23. The screw motor 21 drives the screw 22 to rotate, thereby driving the screw slider 23 to move, thereby completing the adjustment of the height of the adjustment motor 24.

[0035] like Figure 4 As shown, the position of the connecting rod 8 corresponds to the setting of the blade 9, the outer end of the blade 9 is connected to the support shaft 28, a rotating seat 27 is set inside the connecting rod 8, the support shaft 28 is rotatably set on the rotating seat 27, and the adjacent connecting rods 8 form the impeller's pump water outlet.

[0036] like Figure 7As shown, the mounting plate 7 is provided with a second mounting cavity 35 and an opening 36, the second mounting cavity 35 is connected to the opening 36, the opening 36 is connected to the water inlet 11, an adjusting plate 12 is slidably arranged in the opening 36, and a part of the adjusting plate 12 is located in the water inlet 11. The inner end of the adjusting plate 12 can extend from the opening 36 into the water inlet 11, and the inner ends of the adjusting plates 12 form an inlet for the impeller to inlet water. By adjusting the size of the inlet formed by the inner ends of the adjusting plates 12, the size of the impeller inlet can be changed. When the impeller speed increases, the water pumping efficiency increases, and the water consumption is met by increasing the size of the inlet so that more water can enter the impeller. When the impeller speed is low, the size of the inlet is reduced.

[0037] like Figure 6 As shown, the adjustment plate 12 is fan-shaped, and a plurality of adjustment plates 12 can be spliced ​​into a ring. In this example, four adjustment plates 12 are provided, and the central angle of the adjustment plate 12 is 90 degrees. Fig. 9 As shown, a mounting groove 47 is provided on the side of the adjustment plate 12, and a sealing film 48 is connected between the sides of adjacent adjustment plates 12. The end of the sealing film 48 is installed in the mounting groove 47 through a rotating shaft, and a torsion spring is installed at the rotating shaft. When the adjustment plate 12 moves outward along the radial direction of the mounting plate 7, a gap will be generated between adjacent adjustment plates 12. By providing the sealing film 48, the sealing film 48 can be stretched as the adjustment plate 12 moves, thereby making up for the gap between the sides of the two adjustment plates 12. When the adjustment plate 12 moves inward along the radial direction of the mounting plate 7, the sealing film 48 can be retracted into the mounting groove 47 and will not be sandwiched between the two adjustment plates 12.

[0038] like Fig. 9 As shown, a sealing ring 46 is embedded in the side surface of the adjustment plate 12. When the side surfaces of adjacent adjustment plates 12 are in contact with each other, the sealing ring 46 provides a sealing effect between the two side surfaces.

[0039] One end of the adjustment plate 12 located in the second installation cavity 35 is connected to a movable block 32, a guide rail 37 is provided on the upper part of the second installation cavity 35, the movable block 32 is slidably connected to the guide rail 37, a plurality of racks 38 are provided at the lower part of the movable block 32, a rotating disk 33 is rotatably provided in the second installation cavity 35, the rotating disk 33 is located below the adjustment plate 12, a spiral groove 34 is provided on the upper part of the rotating disk 33, the rack 38 is arranged in the spiral groove 34, a rotating mechanism 31 is provided in the second installation cavity 35, the rotating mechanism 31 includes a rotating motor 39, the rotating motor 39 is driven and connected to a driving gear 2 41, a gear ring 2 40 is provided below the rotating disk 33, and the driving gear 2 41 is meshed with the gear ring 2 40.

[0040] The rotary motor 39 drives the second driving gear 41 to rotate, and the second driving gear 41 drives the rotating disk 33 to rotate through the second gear ring 40, and the rotating disk 33 drives the movable block 32 to move through the cooperation of the spiral groove 34 and the rack 38. The guide rail 37 is arranged along the radial direction of the mounting plate 7, and the guide rail 37 guides the movable block 32 so that the adjustment plate 12 moves along the radial direction of the mounting plate 7.

[0041] Furthermore, a moving frame 42 is provided in the second installation cavity 35, and a moving block 43 is slidably provided in the moving frame 42. The sliding direction of the moving block 43 is the radial direction of the second installation cavity 35. A spring 1 44 is connected to the moving block 43, and the other end of the spring 1 44 is connected to the outer side of the moving frame 42. A plurality of triggers 45 are installed on the side of the moving frame 42. The trigger 45 includes a receiving groove opened on the side of the moving frame 42, and a trigger block is installed in the receiving groove. The end of the trigger block extending into the receiving groove is hemispherical, and a trigger switch is provided at the bottom of the receiving groove. A spring is connected between the lower part of the trigger block and the bottom of the receiving groove. When the moving block 43 slides, it contacts the end of the trigger block, thereby pressing the trigger block into the receiving groove, so that the trigger block contacts the trigger switch and sends a signal. The trigger 45 is electrically connected to the second gear ring 40.

[0042] As the speed of the impeller increases, the moving block 43 tends to move radially outward of the mounting plate 7. As the moving block 43 moves, it contacts the triggers 45 arranged radially along the mounting plate 7 one by one. By the triggering sequence of the triggers 45 at different positions, it can be determined whether the speed of the impeller is increasing, decreasing or maintaining, thereby controlling the operating state of the gear ring 2 40 respectively, so as to adjust the position of the adjusting plate 12 in a targeted manner to change the size of the impeller water inlet.

[0043] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A water pump, characterized in that: The invention comprises a driving motor (1) and a pump casing (2), wherein one axial end of the pump casing (2) is connected to a water inlet pipe (3), and the outer periphery of the pump casing (2) is connected to a water outlet pipe (4), the driving motor (1) is located on a side of the pump casing (2) away from the water inlet pipe (3), an impeller is rotatably arranged in the pump casing (2), and the impeller comprises a rotating shaft (5), a fixing plate (6), a mounting plate (7), a connecting rod (8), and blades (9), the rotating shaft (5) is arranged to extend out of the pump casing (2), and the driving motor (1) drives the connecting rod (4) to rotate. A rotating shaft (5), the mounting plate (7) and the fixed plate (6) are arranged in parallel, a connecting rod (8) is connected between the fixed plate (6) and the mounting plate (7), the rotating shaft (5) passes through the center of the fixed plate (6) and is fixedly connected to the fixed plate (6), an adjusting mechanism (10) is installed on the portion of the rotating shaft (5) located between the fixed plate (6) and the mounting plate (7), a plurality of blades (9) are installed on the adjusting mechanism (10), and a water inlet (11) is opened in the middle of the mounting plate (7).

2. A water pump according to claim 1, characterized in that: The adjusting mechanism (10) comprises a mounting sleeve (15), a mounting cavity (16) is provided in the mounting sleeve (15), the inner end of the blade (9) is connected to a central shaft (13), the central shaft (13) is rotatably arranged on the side wall of the mounting sleeve (15), the inner end of the central shaft (13) extends into the mounting cavity (16) and is connected to a transmission bevel gear (14), a support ring (18) is rotatably arranged in the mounting cavity (16), a tooth block (20) is arranged on the support ring (18), the tooth block (20) can mesh with the transmission bevel gear (14), the inner circumference of the support ring (18) is connected to a tooth ring (19), an adjusting motor (24) is arranged in the mounting cavity (16), the adjusting motor (24) is drivingly connected to a driving gear (25), and the driving gear (25) can mesh with the tooth ring (19).

3. A water pump according to claim 2, characterized in that: The support ring (18) is provided with two and is respectively located on the upper and lower sides of the transmission bevel gear (14); the tooth block (20) on the upper support ring (18) is installed on the lower side, and the tooth block (20) on the lower support ring (18) is installed on the upper side; the tooth block (20) on the upper support ring (18) and the tooth block (20) on the lower support ring (18) are arranged alternately, and also includes a lifting mechanism (29); the lifting mechanism (29) can drive the adjustment motor (24) to rise and fall, so that the driving gear 1 (25) is respectively meshed with the upper gear ring 1 (19) or the lower gear ring 1 (19).

4. A water pump according to claim 3, characterized in that: The upper and lower parts of the regulating motor (24) are respectively provided with clamping blocks (26), and the clamping blocks (26) can be engaged with the gear ring 1 (19).

5. A water pump according to claim 3 or 4, characterized in that: The lifting mechanism (29) comprises a screw motor (21) and a screw (22) rotatably arranged in the installation cavity (16); the screw (22) is arranged along the axial direction of the rotating shaft (5); the screw motor (21) drives the connecting screw (22); a screw slider (23) is arranged on the screw (22); and the adjusting motor (24) is installed on the screw slider (23).

6. A water pump according to claim 1, characterized in that: The mounting plate (7) is provided with a second mounting cavity (35) and an opening (36); the second mounting cavity (35) is in communication with the opening (36); the opening (36) is in communication with the water inlet (11); an adjustment plate (12) is slidably arranged in the opening (36); a portion of the adjustment plate (12) is located in the water inlet (11).

7. A water pump according to claim 6, characterized in that: One end of the adjustment plate (12) located in the second installation cavity (35) is connected to a movable block (32); a guide rail (37) is arranged on the upper part of the second installation cavity (35); the movable block (32) is slidably connected to the guide rail (37); a plurality of racks (38) are arranged on the lower part of the movable block (32); a rotating disk (33) is rotatably arranged in the second installation cavity (35); the rotating disk (33) is located below the adjustment plate (12); a spiral groove (34) is opened on the upper part of the rotating disk (33); the rack (38) is arranged in the spiral groove (34); a rotating mechanism (31) is arranged in the second installation cavity (35); the rotating mechanism (31) comprises a rotating motor (39); the rotating motor (39) is drivingly connected to a second driving gear (41); a second gear ring (40) is arranged below the rotating disk (33); the second driving gear (41) is meshed with the second gear ring (40).

8. A water pump according to claim 6 or 7, characterized in that: The adjustment plate (12) is fan-shaped, and a mounting groove (47) is provided on the side of the adjustment plate (12). A sealing film (48) is connected between the side surfaces of adjacent adjustment plates (12), and the end of the sealing film (48) is installed in the mounting groove (47).

9. A water pump according to claim 7, characterized in that: A moving frame (42) is arranged in the second installation cavity (35), a moving block (43) is slidably arranged in the moving frame (42), the sliding direction of the moving block (43) is the radial direction of the second installation cavity (35), a spring (44) is connected to the moving block (43), the other end of the spring (44) is connected to the outer side of the moving frame (42), and a plurality of triggers (45) are installed on the side of the moving frame (42).

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