Anti-blocking impeller of micro water pump

Abstract

The invention relates to the technical field of water pumps, and discloses an anti-blocking impeller of a miniature water pump, which comprises a water pump seat, a water pump main body is fixedly mounted at the upper end of the water pump seat, an adjustable assembly is arranged in one side of the water pump main body, and a self-cleaning assembly is fixedly mounted at one end of the water pump main body. The adjustable assembly comprises an impeller disc fixedly arranged on the outer side of a rotating shaft of the water pump body, four sets of fixed blades are fixedly arranged at one end of the impeller disc, four sets of fixed shafts are fixedly arranged at the positions, close to the four sets of fixed blades, of one end of the impeller disc, and movable blades are rotationally arranged on the outer sides of the four sets of fixed shafts. According to the anti-blocking impeller of the micro water pump, through overall cooperative use, impurities such as fibers, particles or viscous sediments on the surfaces and gaps of the blades are actively disturbed, the scouring effect is formed in combination with fluid shear force, and the impurities are prevented from being accumulated at the roots of the blades or dead corners of a flow channel.

Description

Technical Field

[0001] The present invention relates to the technical field of water pumps, and particularly relates to an anti-blocking impeller for a micro water pump. Background Art

[0002] A water pump is a machine that conveys liquids or increases the pressure of liquids. It transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to convey liquids including water, oil, acid-base solutions, emulsions, suspension emulsions, and liquid metals, etc. It can also convey liquid-gas mixtures and liquids containing suspended solids. The existing micro water pumps, as precision fluid conveying devices, are widely used in fields such as medical equipment, environmental protection projects, and micro cooling systems. Especially when dealing with media containing particles, fibers, or high viscosity, the problem of impeller blockage has become the core pain point restricting the reliability and lifespan of the equipment. Due to the fixed gap or single structure design, the fixed blade gap cannot match different impurities, and it is easy to get stuck in the gap, resulting in the impeller being stuck. If the gap is too large, the pump efficiency will be reduced. Secondly, when using a filter screen, sediment will be generated after a period of time, resulting in unsmooth water flow and affecting the water intake efficiency. Summary of the Invention

[0003] The main purpose of the present invention is to provide an anti-blocking impeller for a micro water pump, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] An anti-blocking impeller for a micro water pump, including a water pump seat, a water pump main body is fixedly installed at the upper end of the water pump seat, an adjustable component is arranged inside one side of the water pump main body, a self-cleaning component is fixedly installed at one end of the water pump main body. The adjustable component includes an impeller disc fixedly arranged outside the rotating shaft of the water pump main body, four fixed blades are fixedly arranged at one end of the impeller disc, four fixed shafts are fixedly arranged between the four fixed blades near one end of the impeller disc, movable blades are rotatably arranged on the outer sides of the four fixed shafts, connecting shafts are fixedly arranged at the positions near the center of the impeller disc at one ends of the four movable blades, a driving wheel is sleeved on one side of the four connecting shafts, a guiding groove is opened at one end of the driving wheel corresponding to the connecting shaft, a variable pitch groove is arranged inside the guiding groove, a circular tube is fixedly arranged at one end of the driving wheel, a cross groove is opened at one end of the rotating shaft of the water pump main body, and a limiting block is fixedly arranged on the outer side of the rotating shaft of the water pump main body near one end of the circular tube.

[0006] Preferably, a number of groups of connecting plates are fixedly arranged at a position on the outer side of the circular pipe close to the limiting block, a worm gear is fixedly arranged on the outer sides of the number of groups of connecting plates, rotating grooves are formed on both sides of the worm gear, a square shell is fixedly arranged at a position on the outer shell of the water pump main body close to the worm gear, connecting rings are fixedly arranged on the inner walls of both sides of the square shell corresponding to the positions of the rotating grooves, a worm is rotatably arranged inside the square shell, a hand wheel is fixedly arranged on the front side of the worm, and a handle is fixedly arranged at a position close to the lower side of the front end of the hand wheel.

[0007] Preferably, the self-cleaning assembly includes a flange fixedly installed at the water inlet end of the water pump main body, a baffle is fixedly arranged at one end of the flange, a filter screen is fixedly arranged inside the flange, a transmission rod is rotatably arranged at the center position of the filter screen, a number of groups of scraping bars are fixedly arranged on the outer side of the transmission rod close to one end of the filter screen, a cross block is fixedly arranged at the other end of the transmission rod, a circular block is fixedly arranged on the outer side of the transmission rod close to the inner side of the filter screen, a fixing rod is fixedly arranged on the upper side of the circular block, a number of groups of spacer rings are fixedly arranged on the outer side of the fixing rod, movable rings are sleeved between the number of groups of spacer rings on the outer side of the fixing rod, a number of groups of circular grooves are formed on the inner sides of the movable rings, cleaning needles are movably arranged inside the circular grooves, and a return spring is fixedly arranged between the cleaning needles and the inner walls of the circular grooves.

[0008] Preferably, the four fixed vanes and the four movable vanes are circularly and evenly arranged, the four connecting shafts are respectively inserted into the inner sides of the guide grooves, and the driving wheel and the circular pipe are both movably sleeved on the outer side of the water pump main body.

[0009] Preferably, the number of groups of connecting plates are circularly and evenly arranged, and the worm gear and the worm are meshed.

[0010] Preferably, the rotating grooves formed at both ends of the worm gear are sleeved on the connecting rings and rotate, and the front side of the worm penetrates through the inside of the square shell.

[0011] Preferably, the flange is connected to the water inlet end of the water pump main body through bolts, the scraping bars are attached to the outer ends of the filter screen, and the cross block is adapted to the cross groove.

[0012] Preferably, the movable rings are attached to the inner ends of the filter screen, the number of groups of movable rings are vertically and evenly arranged, and the cleaning needles are adapted to the sizes of the filter holes on the filter screen.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The rotating shaft of the water pump main body can drive the four groups of fixed blades and movable blades connected thereto to rotate. The four groups of rotating movable blades are connected to the inner side of the driving wheel through four groups of connecting shafts, so that the four groups of connecting shafts move in the guiding grooves and pitch-changing grooves. There is a certain positional difference between the guiding grooves and the pitch-changing grooves. Therefore, when driving the four groups of connecting shafts and movable blades to rotate, they also rotate slightly along the four groups of fixed shafts, realizing the change in the distance from the four groups of fixed blades. The periodic swinging of the blades can actively disturb the impurities (such as fibers, particles or viscous deposits) on the surface of the blades and at the gaps, combined with the fluid shear force to form a "scouring effect", avoiding the accumulation of impurities at the blade roots or in the dead corners of the flow channels.

[0015] 2. By controlling the handwheel and the worm to rotate through the handle, the engaged worm gear is driven to rotate along the connecting ring, driving the connected connecting plate and round tube to rotate. The round tube drives the driving wheel to rotate. When the water pump main body stops working, it can also drive the movable blades to swing, and can also manually disturb the impurities on the surface and at the gaps of the movable blades.

[0016] 3. When the rotating shaft of the water pump main body rotates, the transmission rod is driven to rotate by the cross groove. The transmission rod will drive several groups of scraping strips to rotate, scraping off the impurities adhered to the surface of the filter net, avoiding affecting the working efficiency of the water source entering during pumping. At the same time, the round block is driven to rotate by the transmission rod, and the movable ring attached to the inner wall of the filter net is driven to rotate. Several groups of cleaning needles on the movable ring are respectively inserted into the filter holes of the filter net, cleaning the impurities in the holes from the inside to the outside, further improving the cleaning effect on the filter net. And it is connected to the water inlet end of the water pump main body through bolts for the flange, and the cross block is clamped with the cross groove, meeting the purpose of disassembly at the same time, improving the overall practicality. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of an anti-blocking impeller of a micro water pump according to the present invention;

[0018] Figure 2 It is a schematic diagram of a partial structure of an anti-blocking impeller of a micro water pump according to the present invention;

[0019] Figure 3 It is a schematic diagram of the adjustable component and self-cleaning component structure of an anti-blocking impeller of a micro water pump according to the present invention;

[0020] Figure 4 It is a schematic diagram of the adjustable component structure of an anti-blocking impeller of a micro water pump according to the present invention;

[0021] Figure 5 It is a schematic diagram of the partial unfolded structure of the adjustable component of an anti-blocking impeller of a micro water pump according to the present invention;

[0022] Figure 6For the anti-clogging impeller of a micro water pump according to the present invention Figure 2 Schematic enlarged structure diagram of part A in

[0023] Figure 7 Schematic partial cross-sectional structure diagram of the self-cleaning component of the anti-clogging impeller of a micro water pump according to the present invention Figure 1 ;

[0024] Figure 8 Schematic partial cross-sectional structure diagram of the self-cleaning component of the anti-clogging impeller of a micro water pump according to the present invention Figure 2 .

[0025] In the figure: 1, water pump base; 2, water pump main body; 3, adjustable component; 31, impeller disc; 32, fixed blade; 33, fixed shaft; 34, movable blade; 35, connecting shaft; 36, driving wheel; 37, guiding groove; 38, pitch-changing groove; 39, round tube; 310, cross groove; 311, limiting block; 312, connecting plate; 313, worm gear; 314, rotating groove; 315, square shell; 316, connecting ring; 317, worm; 318, hand wheel; 319, handle; 4, self-cleaning component; 41, flange; 42, retaining piece; 43, filter net; 44, transmission rod; 45, scraping strip; 46, cross block; 47, round block; 48, fixed rod; 49, spacer ring; 410, movable ring; 411, round groove; 412, cleaning needle; 413, return spring. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is the relative relationship of the orientation or position, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] Please refer to Figures 1 - 8, an embodiment provided by the present invention: an anti-blocking impeller of a micro water pump, including a water pump base 1, a water pump main body 2 is fixedly installed at the upper end of the water pump base 1, an adjustable component 3 is arranged inside one side of the water pump main body 2, a self-cleaning component 4 is fixedly installed at one end of the water pump main body 2. The adjustable component 3 includes an impeller disc 31 fixedly arranged outside the rotating shaft of the water pump main body 2, four fixed blades 32 are fixedly arranged at one end of the impeller disc 31, four fixed shafts 33 are fixedly arranged between the four fixed blades 32 near one end of the impeller disc 31, movable blades 34 are rotatably arranged on the outer sides of the four fixed shafts 33, connecting shafts 35 are fixedly arranged at the centers of the four movable blades 34 near one end of the impeller disc 31, a driving wheel 36 is sleeved on one side of the four connecting shafts 35, a guiding groove 37 is opened at one end of the driving wheel 36 corresponding to the connecting shaft 35, a variable pitch groove 38 is arranged inside the guiding groove 37, a circular tube 39 is fixedly arranged at one end of the driving wheel 36, a cross groove 310 is opened at one end of the rotating shaft of the water pump main body 2, and a limiting block 311 is fixedly arranged outside the rotating shaft of the water pump main body 2 near one end of the circular tube 39.

[0029] The four fixed blades 32 and the four movable blades 34 are arranged in a circular and uniform manner. The four connecting shafts 35 are respectively inserted inside the guiding groove 37, and the driving wheel 36 and the circular tube 39 are both movably sleeved outside the water pump main body 2.

[0030] The rotation of the rotating shaft of the water pump main body 2 can drive the four fixed blades 32 and the movable blades 34 connected thereto to rotate. The four rotating movable blades 34 are connected to the inside of the driving wheel 36 through the four connecting shafts 35, so that the four connecting shafts 35 move in the guiding groove 37 and the variable pitch groove 38. There is a certain positional difference between the guiding groove 37 and the variable pitch groove 38, so the four connecting shafts 35 and the movable blades 34 rotate and at the same time rotate slightly along the four fixed shafts 33, realizing the distance change between the four connecting shafts 35 and the four fixed blades 32. The periodic swing of the blades can actively disturb the impurities on the surface of the blades and at the gaps "such as fibers, particles or viscous deposits", combined with the fluid shear force to form a "scouring effect", avoiding the accumulation of impurities at the blade roots or the dead corners of the flow channels.

[0031] A plurality of connecting plates 312 are fixedly arranged at the position of the circular tube 39 near the limiting block 311. A worm gear 313 is fixedly arranged outside the plurality of connecting plates 312. Rotating grooves 314 are opened on both sides of the worm gear 313. A square shell 315 is fixedly arranged at the position of the outer shell of the water pump main body 2 near the worm gear S13. Connecting rings 316 are fixedly arranged on the inner walls of both sides of the square shell 315 corresponding to the positions of the rotating grooves 314. A worm 317 is rotatably arranged inside the square shell 315. A hand wheel 318 is fixedly arranged at the front side of the worm 317. A handle 319 is fixedly arranged at the position near the lower side of the front end of the hand wheel 318.

[0032] Several groups of connecting plates 312 are arranged in a uniform circle. The worm gear 313 and the worm 317 are meshed. The rotating grooves 314 opened at both ends of the worm gear 313 are sleeved on the connecting ring 316 and rotate, and the front side of the worm 317 penetrates through the inside of the square shell 315.

[0033] The handwheel 318 and the worm 317 are rotated by controlling the handle 319, so as to drive the meshed worm gear 313 to rotate along the connecting ring 316, drive the connected connecting plates 312 and the round tube 39 to rotate, drive the driving wheel 36 to rotate by the round tube 39, and can also drive the movable blades 34 to swing when the water pump main body 2 stops working, and can also manually disturb the impurities on the surface and gaps of the movable blades 34.

[0034] The self-cleaning assembly 4 includes a flange 41 fixedly installed at the water inlet end of the water pump main body 2. One end of the flange 41 is fixedly provided with a baffle 42. A filter screen 43 is fixedly arranged inside the flange 41. A transmission rod 44 is rotatably arranged at the center position of the filter screen 43. Several groups of scraping strips 45 are fixedly arranged on the outer side of the transmission rod 44 near one end of the filter screen 43. A cross block 46 is fixedly arranged at the other end of the transmission rod 44. A round block 47 is fixedly arranged on the outer side of the transmission rod 44 near the inner side of the filter screen 43. A fixing rod 48 is fixedly arranged on the upper side of the round block 47. Several groups of spacer rings 49 are fixedly arranged on the outer side of the fixing rod 48. Movable rings 410 are sleeved between several groups of spacer rings 49 on the outer side of the fixing rod 48. Several groups of circular grooves 411 are opened on the inner side of the movable rings 410. Cleaning needles 412 are movably arranged inside the circular grooves 411. A return spring 413 is fixedly arranged between the cleaning needles 412 and the inner wall of the circular grooves 411.

[0035] The flange 41 is connected to the water inlet end of the water pump main body 2 through bolts. The scraping strips 45 are attached to the outer end of the filter screen 43. The cross block 46 is adapted to the cross groove 310. The movable rings 410 are attached to the inner end of the filter screen 43. Several groups of movable rings 410 are arranged vertically and evenly. The cleaning needles 412 are adapted to the size of the filter holes on the filter screen 43.

[0036] By the rotation of the rotating shaft of the water pump main body 2, the transmission rod 44 is driven to rotate by the cross groove 310. The transmission rod 44 will drive several groups of scraping strips 45 to rotate, scrape off the impurities adhered to the surface of the filter screen 43, and avoid affecting the working efficiency of the water source entering during pumping. At the same time, the round block 47 is driven to rotate by the transmission rod 44. The movable rings 410 attached to the inner wall of the filter screen 43 are driven to rotate. Several groups of cleaning needles 412 on the movable rings 410 are respectively inserted into the filter holes of the filter screen 43, and the impurities in the holes are cleaned and pushed out from the inside, further improving the cleaning effect on the filter screen 43. And the flange 41 is connected to the water inlet end of the water pump main body 2 through bolts, and the cross block 46 is clamped with the cross groove 310, meeting the purpose of disassembly at the same time and improving the overall practicability.

[0037] Working principle: When in use, the rotating shaft of the water pump main body 2 can drive the four groups of fixed blades 32 and movable blades 34 connected thereto to rotate. The four groups of rotating movable blades 34 are connected to the inner side of the driving wheel 36 through four groups of connecting shafts 35, so that the four groups of connecting shafts 35 move in the guiding grooves 37 and variable pitch grooves 38. There is a certain positional difference between the guiding groove 37 and the variable pitch groove 38. Therefore, the four groups of connecting shafts 35 and movable blades 34 rotate and at the same time make a small rotation along the four groups of fixed shafts 33, realizing the change in the distance from the four groups of fixed blades 32. The periodic swinging of the blades can actively disturb the impurities on the blade surface and at the gaps "such as fibers, particles or viscous deposits", combined with the fluid shear force to form a "scouring effect", avoiding the accumulation of impurities at the blade roots or in the dead corners of the flow channels; Secondly, by controlling the handwheel 318 and the worm 317 to rotate through the handle 319, the engaged worm wheel 313 is driven to rotate along the connecting ring 316, driving the connected connecting plate 312 and round tube 39 to rotate. The round tube 39 drives the driving wheel 36 to rotate. When the water pump main body 2 stops working, the movable blades 34 can also be driven to swing, and the impurities on the surface and at the gaps of the movable blades 34 can also be manually disturbed; In addition, by rotating the rotating shaft of the water pump main body 2, the cross groove 310 drives the transmission rod 44 to rotate. The transmission rod 44 drives several groups of scraping strips 45 to rotate, scraping off the impurities adhered to the surface of the filter net 43, avoiding affecting the working efficiency of the water source entering during pumping. At the same time, the round block 47 is driven to rotate by the transmission rod 44, and the movable ring 410 attached to the inner wall of the filter net 43 is driven to rotate. Several groups of cleaning needles 412 on the movable ring 410 are respectively inserted into the filter holes of the filter net 43, cleaning the impurities in the holes from the inside to the outside, further improving the cleaning effect on the filter net 43. The flange 41 is connected to the water inlet end of the water pump main body 2 through bolts, and the cross block 46 is clamped with the cross groove 310, meeting the purpose of disassembly and improving the overall practicability.

[0038] The water pump base 1 and the electrical components of the water pump main body 2 in the present invention are existing structures in the art, and the usage methods and connection methods between other components belong to the common knowledge in this field. Its working principle is already a well-known technology, and the model is selected according to the actual use. Therefore, it will not be explained in detail.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging impeller for a micro water pump, comprising a water pump seat (1), characterized in that: The upper end of the water pump base (1) is fixedly installed with a water pump main body (2). An adjustable component (3) is arranged inside one side of the water pump main body (2). A self-cleaning component (4) is fixedly installed at one end of the water pump main body (2). The adjustable component (3) includes an impeller disc (31) fixedly arranged on the outer side of the rotating shaft of the water pump main body (2). Four fixed blades (32) are fixedly arranged at one end of the impeller disc (31). Four fixed shafts (33) are fixedly arranged between the four fixed blades (32) at one end of the impeller disc (31). Movable blades (34) are rotatably arranged on the outer sides of the four fixed shafts (33). Connecting shafts (35) are fixedly arranged at the centers of the four movable blades (34) close to the impeller disc (31). Driving wheels (36) are sleeved on one sides of the four connecting shafts (35). Guide grooves (37) are formed at one ends of the driving wheels (36) corresponding to the connecting shafts (35). Variable pitch grooves (38) are arranged inside the guide grooves (37). A circular tube (39) is fixedly arranged at one end of the driving wheel (36). A cross groove (310) is formed at one end of the rotating shaft of the water pump main body (2). A limiting block (311) is fixedly arranged on the outer side of the rotating shaft of the water pump main body (2) close to one end of the circular tube (39).

2. The anti-blocking impeller of a micro water pump according to claim 1, characterized in that: A number of connecting plates (312) are fixedly arranged on the outer side of the circular tube (39) close to the limiting block (311). A worm gear (313) is fixedly arranged on the outer sides of the number of connecting plates (312). Rotating grooves (314) are formed on both sides of the worm gear (313). A square shell (315) is fixedly arranged on the outer shell of the water pump main body (2) close to the worm gear (313). Connecting rings (316) are fixedly arranged on the inner walls of both sides of the square shell (315) corresponding to the rotating grooves (314). A worm (317) is rotatably arranged inside the square shell (315). A hand wheel (318) is fixedly arranged on the front side of the worm (317). A handle (319) is fixedly arranged at the front end of the hand wheel (318) close to the lower side position.

3. The anti-clogging impeller of a micro water pump according to claim 2, characterized in that: The self-cleaning component (4) includes a flange (41) fixedly installed at the water inlet end of the water pump main body (2). One end of the flange (41) is fixedly provided with a baffle (42). The inner side of the flange (41) is fixedly provided with a filter screen (43). A transmission rod (44) is rotatably arranged at the central position of the filter screen (43). A plurality of groups of scraping strips (45) are fixedly arranged on the outer side of the transmission rod (44) near one end of the filter screen (43). The other end of the transmission rod (44) is fixedly provided with a cross block (46). A round block (47) is fixedly arranged on the outer side of the transmission rod (44) near the inner side of the filter screen (43). A fixing rod (48) is fixedly arranged on the upper side of the round block (47). A plurality of groups of spacer rings (49) are fixedly arranged on the outer side of the fixing rod (48). An activity ring (410) is sleeved between a plurality of groups of spacer rings (49) on the outer side of the fixing rod (48). A plurality of groups of round grooves (411) are formed in the inner side of the activity ring (410). A cleaning needle (412) is movably arranged in the inner side of the round groove (411). A return spring (413) is fixedly arranged between the cleaning needle (412) and the inner wall of the round groove (411).

4. The anti-blocking impeller of a micro water pump according to claim 1, characterized in that: The four groups of fixed vanes (32) and the four groups of movable vanes (34) are arranged circularly and evenly. The four groups of connecting shafts (35) are respectively inserted into the inner side of the guide grooves (37). The driving wheel (36) and the round pipe (39) are both movably sleeved on the outer side of the water pump main body (2).

5. The anti-clogging impeller of a micro water pump according to claim 2, characterized in that: The plurality of groups of connecting plates (312) are arranged circularly and evenly. The worm gear (313) and the worm (317) are meshed.

6. The anti-clogging impeller of a micro water pump according to claim 2, characterized in that: The rotating grooves (314) formed at both ends of the worm gear (313) are sleeved on the connecting ring (316) and rotate. The front side of the worm (317) penetrates through the inside of the square shell (315).

7. The anti-clogging impeller of a micro water pump according to claim 3, characterized in that: The flange (41) is connected to the water inlet end of the water pump main body (2) by bolts. The scraping strip (45) fits the outer end of the filter screen (43). The cross block (46) is adapted to the cross groove (310).

8. The anti-clogging impeller of a micro water pump according to claim 3, characterized in that: The activity ring (410) fits the inner end of the filter screen (43). The plurality of groups of activity rings (410) are arranged vertically and evenly. The cleaning needle (412) is adapted to the size of the filter holes on the filter screen (43).

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