Self-cleaning anti-blocking water pump structure

Abstract

The invention relates to the technical field of water pump structures, and discloses a self-cleaning anti-blocking water pump structure which comprises a pump body and a suction component. The suction component comprises a pump cover fixed to the pump body, a supporting cover and a filter screen, an impeller is installed in the pump cover, and the suction component further comprises a transmission component located in the supporting cover; the supporting ring layer is arranged on the supporting cover and connected with the transmission part; the extrusion type cleaning part and the pulse frame are mounted on the outer side of the supporting ring layer and are used for clamping the filter screen; and the extrusion type cleaning part rotates along with revolution of the supporting ring layer. Through rotation and revolution of the extrusion type cleaning part, blocking particles in holes of the filter screen are extruded outwards through matching points, preliminary cleaning is achieved, the deformation layer is attached to the filter screen to close the holes, water flow is prevented from passing through, and the possibility that the extruded particles block the holes again due to water flow guide is reduced; the deformation layer is in flexible contact with the filter screen when rotating, severe friction is reduced, and deformation or damage of the filter screen is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of water pump structures, in particular to a self-cleaning anti-clogging water pump structure. Background Art

[0002] At present, water pumps are generally faced with blockage problems when conveying particles (such as mine drainage), resulting in reduced efficiency, increased energy consumption and even equipment damage. The main defects of existing technologies are dependence on filters and frequent maintenance.

[0003] Most water pumps intercept impurities by installing a fixed filter (such as a grille or metal mesh) at the water inlet. However, if the filter aperture is too large, fine fibers will leak through, while if the aperture is too small, it will be easily clogged quickly. Cleaning the filter requires frequent shutdown and disassembly, which affects continuous operation.

[0004] Cleaning the filter requires stopping the machine and disassembling the pump body or filter assembly. Especially in deep well pumps and submersible pumps, the operating space is limited, and a single maintenance can take up to 1-2 hours and requires professional personnel. In industrial scenarios, frequent downtime may result in production losses of tens of thousands of yuan per hour.

[0005] At present, in order to solve the problem of filter clogging, the prior art proposes to use a rotating scraper filter and an air-water mixed pulse flushing structure to solve it.

[0006] The rotary scraper filter has certain limitations. When the water pump is working, even if the blockage is scraped off, secondary adhesion will occur under the suction of the water pump, and manual cleaning is still required after long-term accumulation. Secondly, the long-term friction between the scraper and the filter will cause the scraper to become blunt or the filter to deform (especially the stainless steel filter), and the impurities will easily penetrate the filter after the gap increases.

[0007] The air-water mixed pulse method requires the installation of nozzles, which is highly dependent on energy consumption and water sources. High-pressure pulse flushing requires additional booster pumps or pressure storage tanks, and energy consumption accounts for 10-15% of the total system energy consumption. The structure of this method is also relatively more complicated. In the environment where the water pump is used, the proportion of humid or harsh environments is relatively high. Therefore, it is necessary to consider the rationality of the use of the air-water mixed pulse structure in various environments to reduce damage. Summary of the invention

[0008] The object of the present invention is to provide a self-cleaning anti-clogging water pump structure to solve the problems raised in the above background technology.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-cleaning anti-clogging water pump structure, comprising a pump body and a suction component; the suction component comprises a pump cover, a support cover and a filter screen fixed to the pump body, an impeller is installed inside the pump cover, and the suction component also comprises:

[0010] The transmission component is located inside the support cover;

[0011] The supporting ring layer is arranged on the supporting cover and connected with the transmission component;

[0012] The extrusion cleaning part and the pulse frame are both installed outside the support ring layer and are used to clamp the filter screen;

[0013] The extrusion cleaning part rotates simultaneously with the revolution of the support ring layer, and the extrusion cleaning part and the filter screen are deformed in a fitting manner to squeeze out the particles on the filter screen. The upper end of the pulse frame is intermittently connected to the pump cover to generate pulses in the pulse frame to discharge the squeezed particles.

[0014] Further, the extrusion cleaning unit includes:

[0015] The rotating shaft is rotatably mounted on the supporting ring layer;

[0016] Multiple sets of elastic frames, all fixed on the outside of the rotation axis;

[0017] The deformation layer is fixedly sleeved on the outside of the multiple sets of elastic frames, and the outer circumference thereof is provided with matching points corresponding to the holes of the filter screen to squeeze out the particles, and the upper and lower ends of the deformation layer are fixed with flexible layers;

[0018] The deformation layer is squeezed with the inner side of the filter screen to produce a fitting deformation, which is used to close the holes of the filter screen.

[0019] Furthermore, the geometric design of the matching points and the holes of the filter screen has a tolerance.

[0020] Furthermore, the pulse frame is attached to the outside of the filter screen, corresponding to the position of the inner extrusion cleaning part, and a pulse outlet for discharge is opened near the outer side of the lower end of the pulse frame;

[0021] A pulse generating ring is fixed at the upper end of the pulse frame, which is in contact with the pump cover. A pulse inlet connected to the pulse frame is opened at the upper end of the pulse generating ring. A plurality of circumferentially distributed pulse holes are opened at the lower end of the pump cover. The pulse inlet intermittently cooperates with the plurality of pulse holes during revolution.

[0022] Furthermore, the pulse inlet has the same diameter as the pulse hole.

[0023] Furthermore, one end of the filter is fixed to the pump cover, and the other end is clamped to the support ring layer. The filter is a circular ring made of metal material, and the pump cover has a guide outlet outside.

[0024] Furthermore, the transmission component includes:

[0025] The transmission shaft is located between the pump cover and the support cover, with a circular hole at one end and a polygonal hole at the other end. The impeller end face is provided with a clamping ring, and a polygonal shaft is integrally provided inside the clamping ring. The inner wall of the support cover is integrally formed with a circular shaft. One end of the transmission shaft extends into the support cover, and the circular hole cooperates with the circular shaft. The other end of the transmission shaft is clamped into the clamping ring, and the polygonal hole cooperates with the polygonal shaft.

[0026] The planetary gear set is installed in the support cover and is used to connect the transmission shaft and the support ring layer;

[0027] A fixing rod is fixed on the outer side of the pump cover and the support cover.

[0028] Furthermore, the planetary gear set includes:

[0029] A gear ring, fixed in the support cover;

[0030] A plurality of planetary gears are meshed in the gear ring, a planet carrier is clamped on the plurality of planetary gears, and a connecting rod clamped with the planet carrier is fixed on the inner side of the support ring layer;

[0031] The sun gear is meshed between the plurality of planetary gears and is fixed to the transmission shaft.

[0032] Furthermore, a ring-shaped annular connection opening is provided at the upper end of the support cover, and the support ring layer includes:

[0033] The outer ring is located outside the support cover;

[0034] The inner ring is located inside the support cover and is embedded in the annular connection opening and fixed to the outer ring by bolts;

[0035] The outer ring and the inner ring have sealing rings on their opposite sides. Two groups of sealing rings are squeezed against the inner and outer sides of the support cover. The connecting rod is fixed at the lower end of the inner ring, and the lower end of the filter mesh is meshed with the outer ring.

[0036] Furthermore, the cross section of the inner ring is an inverted "T" shape, and the widths of the outer ring and the inner ring are both greater than the width of the annular connection port;

[0037] The upper end surface of the support cover and the inner wall corresponding to the upper end surface are both provided with two circles of annular protrusions, which are respectively used to limit the outer ring and the inner ring.

[0038] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0039] 1. The extrusion cleaning part uses the matching points to squeeze the blocked particles in the holes of the filter outward through rotation and revolution to achieve preliminary cleaning. The deformation layer fits the closed holes of the filter to prevent water from passing through, reducing the possibility of the squeezed particles re-clogging the holes due to water flow guidance. The deformation layer is in flexible contact with the filter during rotation, reducing severe friction and avoiding deformation or damage of the filter.

[0040] 2. The pulse frame uses pulse water flow to clean the residual impurities from the holes of the filter and discharges them laterally through the pulse outlet, reducing the risk of impurities being adsorbed back into the filter. The extrusion cleaning part moves synchronously with the pulse frame and clamps the filter inside and outside, applying pressure to enhance the stability of the filter. When the pulse frame rotates, it cooperates with different pulse holes to intermittently generate pulse water flow and move in a circular direction to achieve local and efficient cleaning.

[0041] 3. The planetary gear set adjusts the speed of the extrusion cleaning part and the pulse frame to avoid damage caused by excessive speed, while improving the carrying capacity of the device. The support cover is located in the water, and the water environment is used to cool the planetary gear set and extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 It is a schematic diagram of the separation structure of the pump cover and the support cover of the present invention;

[0045] Figure 3 It is a schematic diagram of the inner structure of the filter screen and the pump cover in a half-section of the present invention;

[0046] Figure 4 It is a schematic diagram of the internal and external structure of the filter screen of the present invention;

[0047] Figure 5 It is a schematic diagram of the support cover separation and its internal structure of the present invention;

[0048] Figure 6 It is a schematic diagram of the structure of the planetary gear set of the present invention;

[0049] Figure 7 It is a schematic diagram of the structure of the extrusion type cleaning part of the present invention;

[0050] Figure 8 The present invention Figure 7 A is a schematic diagram of the partially enlarged structure of the middle part;

[0051] Fig. 9It is a schematic diagram of the partial separation structure of the extrusion type cleaning part of the present invention.

[0052] In the figure: 1. pump body; 2. suction component; 3. pump cover; 31. outlet; 32. impeller; 33. clamping ring; 34. polygonal shaft; 35. pulse hole; 4. support cover; 41. fixing rod; 42. annular connection port; 43. round shaft; 5. filter screen; 6. transmission shaft; 61. polygonal hole; 7. planetary gear set; 71. gear ring; 72. planetary gear; 73. planetary carrier; 74. sun gear; 8. extrusion cleaning part; 81. rotation shaft; 82. elastic frame; 83. deformation layer; 84. matching point; 85. flexible layer; 9. pulse frame; 91. pulse outlet; 92. pulse generating circle; 93. pulse inlet; 10. support circle layer; 101. connecting rod; 102. outer ring; 103. inner ring. DETAILED DESCRIPTION

[0053] 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.

[0054] See also Figure 1-Figure 9 The present invention provides a technical solution: a self-cleaning anti-clogging water pump structure, including a pump body 1 and a suction component 2, the suction component 2 is located at the end of the pump body 1, the suction component 2 is used to absorb water and discharge it along the outlet 31 to realize the operation of the water pump; the suction component 2 includes a pump cover 3, a support cover 4 and a filter screen 5 fixed to the pump body 1, an impeller 32 is installed inside the pump cover 3, the pump cover 3 is fixed to the end of the pump body 1, wherein the pump cover 3 and the impeller 32 together constitute a working chamber, and the suction chamber design of the pump cover 3 can evenly introduce liquid into the inlet of the impeller 32 with minimal hydraulic loss, thereby optimizing fluid distribution.

[0055] The suction component 2 further includes a transmission component located in the support cover 4, a support ring layer 10 provided on the support cover 4 and connected to the transmission component, an extrusion cleaning part 8 and a pulse frame 9 installed outside the support ring layer 10 and used to clamp the filter screen 5;

[0056] The extrusion cleaning part 8 revolves and rotates with the support ring layer 10. The outer side of the extrusion cleaning part 8 has a matching point 84, and the matching point 84 matches with the holes of the filter screen 5. When the extrusion cleaning part 8 rotates with the support ring layer 10, the matching point 84 engages with the holes of the filter screen 5 to achieve self-rotation. The extrusion cleaning part 8 and the filter screen 5 produce a fitting deformation to squeeze out the particles on the filter screen 5. When the filter screen 5 absorbs water, impurities move to the filter screen 5 with the water flow. The impurities are blocked by the filter screen 5, and water passes through the filter screen 5. The extrusion cleaning part 8 revolves and rotates inside the filter screen 5, and the holes of the filter screen 5 are cleared through the matching point 84. The upper end of the pulse frame 9 is intermittently connected to the pump cover 3, so that pulses are generated in the pulse frame 9 to discharge the squeezed particles.

[0057] like Fig. 9 As shown, the extrusion cleaning part 8 includes a self-rotating shaft 81 rotatably mounted on the supporting ring layer 10, multiple sets of elastic frames 82 fixed on the outer side of the self-rotating shaft 81, and a deformation layer 83 fixedly sleeved on the outer side of the multiple sets of elastic frames 82;

[0058] The outer circumference of the deformation layer 83 is distributed with matching points 84, which correspond to the holes of the filter 5 to squeeze out the particles. When the matching points 84 correspond to the holes of the filter 5, it is necessary to extend the matching points 84 into the holes of the filter 5, and the deformation layer 83 is also required to deform to close the holes of the filter 5. Therefore, the geometric design of the matching points 84 and the holes of the filter 5 has a tolerance, so that the matching points 84 are hemispherical or conical, and the holes of the filter 5 are long strips or elliptical holes, so that the matching points 84 are meshed with the filter 5 and the deformation layer 83 can rotate. The upper and lower ends of the deformation layer 83 are fixed with flexible layers 85. The flexible layer 85 is mainly used to prevent impurities from entering the inside of the extrusion cleaning part 8 to achieve a blocking effect. At the same time, it can be deformed with the deformation layer 83 to ensure that the upper and lower ends of the deformation layer 83 are covered. In addition, it should be noted that the flexible layer 85 is made of rubber.

[0059] The deformation layer 83 is squeezed against the inner side of the filter 5 to produce a fitting deformation, closing the holes of the filter 5. During this process, the side of the deformation layer 83 that fits against the filter 5 is in a deformed state, and the distance between the rotation axis 81 in the deformation layer 83 and the filter 5 remains fixed during the rotation or revolution, so that the side of the deformation layer 83 that is squeezed against the filter 5 always remains in a deformed and stressed state. It should be noted that the rotation speed and load of the deformation layer 83 and the flexible layer 85 during the revolution and rotation are within the allowable range of the material strength. It should also be noted that the multiple sets of elastic frames 82 support the deformation layer 83, and the shape is a frame, with the upper and lower sides being inwardly curved. When subjected to pressure, the vertical parts of the frame will be close, and the bending degree of the upper and lower curved parts will increase to achieve deformation.

[0060] It should also be noted that even if the deformation layer 83 fails to completely seal the holes of the filter 5, so that the sealed holes still have local water infiltration, but compared with the unsealed situation, it can effectively reduce the suction of the holes of the filter 5, and the particles pushed outward can reduce the possibility of being adsorbed again. Compared with the scraping effect, it can directly push the matching point 84 against the holes of the filter 5 to prevent the holes of the filter 5 from being expanded, thereby extending the service life of the filter 5 and making the filter 5 more permeable.

[0061] like Figure 4 and Figure 8 As shown, the pulse frame 9 is attached to the outer side of the filter 5, corresponding to the position of the extrusion cleaning part 8 on the inner side. A pulse outlet 91 for discharge is opened near the outer side of the lower end of the pulse frame 9. The pulse frame 9 and the extrusion cleaning part 8 clamp the inner and outer sides of the filter 5 to achieve a supporting effect to prevent the filter 5 from being damaged by the extrusion from the inside. The pulse frame 9 partially covers the outer side of the filter 5. Under the action of the pulse, the water flow can impact the outer side of the filter 5 and the holes of the covered filter 5 to achieve further cleaning. Even if local stains or viscous substances adhere to the surface of the filter 5, they can be washed away under the action of water pressure, and the filter 5 remains clean. The generated pulse is discharged from the pulse outlet 91. The pulse outlet 91 is arranged horizontally. During discharge, the impurities and stains taken away will not pass through the filter 5 to prevent them from entering the filter 5 again.

[0062] It should be noted that the pulse frame 9 is made of metal, and the position where the pulse frame 9 contacts the filter 5 is in an arc shape to avoid scraping the filter 5 and damaging the filter 5. The range of the matching point 84 and the hole of the filter 5 is larger than the coverage of the pulse frame 9. When the edge of the pulse frame 9 moves along the filter 5, the position moved to is matched by the matching point 84 and the hole of the filter 5. The matching point 84 has pushed the particles outward, and the particles can be further scraped off under the action of the pulse frame 9, while the remaining particles remaining in the holes of the filter 5 can be flushed out by the action of the pulse, avoiding clogging the holes and affecting the water inlet.

[0063] A pulse generating ring 92 is fixed to the upper end of the pulse frame 9. The pulse generating ring 92 is in a ring shape and is made of rigid material. The pulse generating ring 92 is fitted with the pump cover 3. A pulse inlet 93 connected to the pulse frame 9 is opened at the upper end of the pulse generating ring 92. A plurality of circumferentially distributed pulse holes 35 are opened at the lower end of the pump cover 3. The pulse generating ring 92 blocks the plurality of circumferentially distributed pulse holes 35. The pulse inlet 93 intermittently cooperates with the plurality of pulse holes 35 during revolution. The pulse inlet 93 has the same diameter as the pulse hole 35. When the pulse generating ring 92 rotates with the pulse frame 9, the pulse inlet 93 cooperates with one of the pulse holes 35, so that the pressurized water in the pump cover 3 moves from the pulse inlet 93 and the pulse hole 35 to the pulse frame 9, generates pulses from top to bottom, and flushes the filter screen 5 from top to bottom to flush away the stains on the filter screen 5. The use of such a pulse frame 9 and an extrusion cleaning part 8 does not require an additional power source, and the structure is more streamlined, and the outer circle of the filter screen 5 is flushed.

[0064] It should be noted that the inside of the position where the filter 5 is flushed is blocked by the squeeze cleaning part 8, and the holes of the filter 5 are perpendicular to the pulse direction. The turbulent vortex formed by the pulse flow in the hole cleans the residual impurities inside. Particles with a diameter less than 1 / 3 of the mesh are easily taken away by the vortex. Larger blocks are difficult to be processed by pulse, but the larger blocks have moved outward at the action of the matching point 84. It should also be noted that the pulse hole 35 can be set according to the extracted liquid to avoid clogging the pulse hole 35.

[0065] like Figure 2 As shown, one end of the filter screen 5 is fixed to the pump cover 3, and the other end is clamped with the support ring layer 10. The filter screen 5 is a circular ring made of metal. One end of the filter screen 5 is fixed and the other end is clamped. Both ends are limited and are not easily deformed under external force, thereby maintaining the rigidity of the filter screen 5. The pump cover 3 has a guide outlet 31 on the outside to complete the function of the water pump in conveying water.

[0066] like Figure 3-Figure 6 As shown, the transmission component includes a transmission shaft 6 located between the pump cover 3 and the support cover 4 and a planetary gear set 7 installed in the support cover 4.

[0067] A circular hole is provided at one end of the transmission shaft 6, and a polygonal hole 61 is provided at the other end. A clamping ring 33 is provided on the end face of the impeller 32, and a polygonal shaft 34 is integrally provided inside the impeller 32. A circular shaft 43 is integrally formed on the inner wall of the support cover 4. One end of the transmission shaft 6 extends into the support cover 4, and the circular hole cooperates with the circular shaft 43. The other end of the transmission shaft 6 is clamped into the clamping ring 33, and the polygonal hole 61 cooperates with the polygonal shaft 34. Both ends of the transmission shaft 6 are limited to keep it in a vertical state, and it remains stable even if rotation occurs. The polygonal hole 61 cooperates with the polygonal shaft 34 to realize the rotation of the transmission shaft 6.

[0068] The planetary gear set 7 is used to connect the transmission shaft 6 and the support ring layer 10, and transmit the transmission shaft 6 to the support ring layer 10. Based on this, the planetary gear set 7 also achieves the effect of reducing speed. The impeller 32 of the water pump needs to rotate at high speed. The impeller 32 needs to maintain dynamic balance when rotating at high speed. If it is blocked, the balance state will be immediately destroyed, resulting in severe vibration. This vibration will accelerate the wear of components such as bearings and seals, and even cause direct friction and collision between the impeller 32 and the pump casing, causing blade breakage or deformation. Therefore, the stability of the impeller 32 is extremely important. The impeller 32 needs to drive the extrusion cleaning part 8 and the pulse frame 9 to operate. The extrusion cleaning part 8 and the pulse frame 9 are also difficult to withstand the rotation speed of the impeller 32. Therefore, the planetary gear set 7 is set to transmit kinetic energy while reducing the rotation speed and increasing the carrying capacity. Based on this, no additional power source is required. In addition, even if the planetary gear set 7 produces temperature changes in water, it will not have any effect;

[0069] A fixing rod 41 is fixed to the outside of the pump cover 3 and the support cover 4 to fix the two and realize power transmission.

[0070] like Figure 6 As shown, the planetary gear set 7 includes a ring gear 71 fixed in the support cover 4, a plurality of planetary gears 72 meshed in the ring gear 71, and a sun gear 74 meshed between the plurality of planetary gears 72. The sun gear 74 is fixed to the transmission shaft 6. A planet carrier 73 is clamped on the plurality of planetary gears 72. A connecting rod 101 clamped with the planet carrier 73 is fixed to the inner side of the support ring layer 10. The kinetic energy of the planetary gear set 7 is transmitted through the connecting rod 101. In addition, the installation position of the planetary gear set 7 can limit the planetary gear set 7. During maintenance, the suction component 2 can be maintained without disassembling all components of the water pump.

[0071] like Figure 5 and Figure 8 As shown, a ring-shaped annular connection opening 42 is opened at the upper end of the support cover 4, and the support ring layer 10 includes an outer ring 102 located on the outside of the support cover 4 and an inner ring 103 located on the inside of the support cover 4 and embedded in the annular connection opening 42, and the inner ring 103 and the outer ring 102 are fixed by bolts;

[0072] The outer ring 102 and the inner ring 103 have sealing rings on the opposite side. The two sets of sealing rings are squeezed with the inner and outer sides of the support cover 4. The connecting rod 101 is fixed at the lower end of the inner ring 103. The lower end of the filter 5 is meshed with the outer ring 102. Under the action of the outer ring 102 and the inner ring 103, the support ring layer 10 can rotate and seal the support cover 4 to a certain extent. It should be noted that even if the support cover 4 is not sealed, no large leakage will be generated, and only water will penetrate into the support cover 4. When the planetary gear set 7 uses waterproof grease or stainless steel, special coating or corrosion-resistant engineering plastic as lubricant, such materials can resist oxidation and chemical erosion in the water environment, avoid the gear from rusting and causing the meshing accuracy to decrease, and can reduce the influence of water to a certain extent. Large particles in the water will not penetrate into the support cover 4, so the influence of water on the planetary gear set 7 is small.

[0073] like Figure 8 As shown, the cross section of the inner ring 103 is an inverted "T" shape, and the widths of the outer ring 102 and the inner ring 103 are both greater than the width of the annular connection port 42, so that the annular connection port 42 is blocked, while ensuring that the outer ring 102 and the inner ring 103 can rotate to avoid affecting the output of power;

[0074] The upper end surface of the support cover 4 and the inner wall corresponding to the upper end surface have two annular protrusions, which are used to limit the outer ring 102 and the inner ring 103 respectively, increase the contact surface of the bend, and isolate water as much as possible.

[0075] The working principle of the present invention is as follows: when the water pump is working, the impeller 32 rotates, driving water to enter the filter 5 and move outward along the outlet 31, and the transmission shaft 6 rotates along with the impeller 32, thereby realizing the rotation of the planetary gear set 7, and the planetary gear set 7 drives the support ring layer 10 to rotate, and the extrusion cleaning part 8 and the pulse frame 9 rotate along the filter 5.

[0076] First, the extrusion cleaning part 8 can rotate, and the matching point 84 on the outside of the extrusion cleaning part 8 matches with the hole of the filter 5, so that the extrusion cleaning part 8 rotates while revolving along the filter 5, and the matching point 84 squeezes out the particles that clog the holes of the filter 5, thereby achieving preliminary cleaning of the filter 5. The deformation layer 83 in the extrusion cleaning part 8 is deformed by the extrusion of the filter 5 and adheres to the filter 5, so that the holes of the filter 5 that are adhered are in a closed state, and water will not move from the closed holes. The particles pushed by the matching point 84 in the holes of the filter 5 can reduce the possibility of being adsorbed and guided by the water flow, and reduce the possibility of the particles squeezed outwards clogging the holes of the filter 5 again. At the same time, the deformation layer 83 can rotate, and will not cause severe friction to the filter 5, so it will not cause the filter 5 to be deformed or damaged.

[0077] Secondly, the pulse frame 9 rotates with the support ring layer 10 and fits on the outside of the filter 5. The pulse frame 9 covers the local holes of the filter 5. The position covered by the pulse frame 9 is on the outside of the extrusion cleaning part 8. When the extrusion cleaning part 8 revolves and rotates, the matching points 84 on the outer side of the deformation layer 83 will match the holes of the filter 5. The matching range of the matching points 84 and the holes of the filter 5 is larger than the coverage range of the pulse frame 9, and the holes on the matching surface of the pulse frame 9 are blocked. The upper end of the pulse generating circle 92 fits with the pump cover 3 and blocks the pulse hole 35. Based on this, when the pulse frame 9 rotates, the pulse inlet 93 will match with different pulse holes 35. Since there is water pressure inside the pump cover 3, water will move from the matching pulse inlet 93 and pulse hole 35 to the pulse frame 9, driving the impurities in the pulse frame 9 to be discharged from the pulse outlet 91, and the discharge is perpendicular to the pulse frame 9, so that the discharged impurities can be horizontally away from the filter 5, reducing the possibility of being sucked into the filter 5 again.

[0078] It should be noted that the length of the matching point 84 is limited and needs to mesh with the holes of the filter 5 to produce the effect of self-rotation. Therefore, the length of the matching point 84 cannot extend out of the holes of the filter 5. The matching point 84 can only push the particles in the holes of the filter 5 outward as much as possible. Local impurity particles cannot be completely pushed out of the holes of the filter 5 and are located at the edge of the holes of the filter 5. The extrusion cleaning part 8 and the pulse frame 9 move synchronously, and the matching point 84 will not affect the rotation of the pulse frame 9. At the same time, the impurities at the edge of the holes of the filter 5 can be scraped off in the rotation direction of the pulse frame 9, and then pulses are intermittently generated in the pulse frame 9 to clean the holes of the filter 5 located in the pulse frame 9, so that the impurities can be discharged as much as possible.

[0079] It should also be noted that the extrusion cleaning part 8 and the pulse frame 9 move synchronously and clamp the filter 5, applying a pressure to the filter 5 both inside and outside, thereby stabilizing the filter 5 to a certain extent.

[0080] Finally, power is transmitted through the planetary gear set 7 to control the output speed, so as to prevent the extrusion cleaning part 8 and the pulse frame 9 from rotating too fast, reduce the probability of damage, and improve the carrying capacity of the extrusion cleaning part 8 and the pulse frame 9. The support cover 4 is located in the water, which automatically cools the planetary gear set 7.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0082] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-cleaning anti-clogging water pump structure, comprising a pump body and a suction component; the suction component comprises a pump cover, a support cover and a filter screen fixed to the pump body, an impeller is installed inside the pump cover, characterized in that: The suction components also include: The transmission component is located inside the support cover; The supporting ring layer is arranged on the supporting cover and connected with the transmission component; The extrusion cleaning part and the pulse frame are both installed outside the support ring layer and are used to clamp the filter screen; The extrusion cleaning part rotates simultaneously with the revolution of the support ring layer, and the extrusion cleaning part and the filter screen are deformed in a fitting manner to squeeze out the particles on the filter screen. The upper end of the pulse frame is intermittently connected to the pump cover to generate pulses in the pulse frame to discharge the squeezed particles.

2. The self-cleaning anti-clogging water pump structure according to claim 1 is characterized in that: The extrusion cleaning unit comprises: The rotating shaft is rotatably mounted on the supporting ring layer; Multiple sets of elastic frames, all fixed on the outside of the rotation axis; The deformation layer is fixedly sleeved on the outside of the multiple sets of elastic frames, and the outer circumference thereof is provided with matching points corresponding to the holes of the filter screen to squeeze out the particles, and the upper and lower ends of the deformation layer are fixed with flexible layers; The deformation layer is squeezed with the inner side of the filter screen to produce a fitting deformation, which is used to close the holes of the filter screen.

3. The self-cleaning anti-clogging water pump structure according to claim 2 is characterized in that: The matching points and the hole geometry of the filter screen have tolerances.

4. The self-cleaning anti-clogging water pump structure according to claim 1 is characterized in that: The pulse frame is attached to the outside of the filter screen, corresponding to the position of the inner extrusion cleaning part, and a pulse outlet for discharge is opened near the outer side of the lower end of the pulse frame; A pulse generating ring is fixed at the upper end of the pulse frame, which is in contact with the pump cover. A pulse inlet connected to the pulse frame is opened at the upper end of the pulse generating ring. A plurality of circumferentially distributed pulse holes are opened at the lower end of the pump cover. The pulse inlet intermittently cooperates with the plurality of pulse holes during revolution.

5. The self-cleaning anti-clogging water pump structure according to claim 4 is characterized in that: The pulse inlet has the same diameter as the pulse hole.

6. The self-cleaning anti-clogging water pump structure according to claim 1, characterized in that: One end of the filter screen is fixed to the pump cover, and the other end is clamped to the support ring layer. The filter screen is a circular ring made of metal, and the pump cover has a guide outlet outside.

7. The self-cleaning anti-clogging water pump structure according to claim 1, characterized in that: The transmission components include: The transmission shaft is located between the pump cover and the support cover, with a circular hole at one end and a polygonal hole at the other end. The impeller end face is provided with a clamping ring, and a polygonal shaft is integrally provided inside the clamping ring. The inner wall of the support cover is integrally formed with a circular shaft. One end of the transmission shaft extends into the support cover, and the circular hole cooperates with the circular shaft. The other end of the transmission shaft is clamped into the clamping ring, and the polygonal hole cooperates with the polygonal shaft. The planetary gear set is installed in the support cover and is used to connect the transmission shaft and the support ring layer; A fixing rod is fixed on the outer side of the pump cover and the support cover.

8. The self-cleaning anti-clogging water pump structure according to claim 7, characterized in that: The planetary gear set comprises: A gear ring, fixed in the support cover; A plurality of planetary gears are meshed in the gear ring, a planet carrier is clamped on the plurality of planetary gears, and a connecting rod clamped with the planet carrier is fixed on the inner side of the support ring layer; The sun gear is meshed between the plurality of planetary gears and is fixed to the transmission shaft.

9. The self-cleaning anti-clogging water pump structure according to claim 8, characterized in that: The upper end of the support cover is provided with a ring-shaped annular connection opening, and the support ring layer comprises: The outer ring is located outside the support cover; The inner ring is located inside the support cover and is embedded in the annular connection opening and fixed to the outer ring by bolts; The outer ring and the inner ring have sealing rings on their opposite sides. Two groups of sealing rings are squeezed against the inner and outer sides of the support cover. The connecting rod is fixed at the lower end of the inner ring, and the lower end of the filter mesh is meshed with the outer ring.

10. The self-cleaning anti-clogging water pump structure according to claim 9, characterized in that: The cross section of the inner ring is an inverted "T" shape, and the widths of the outer ring and the inner ring are both greater than the width of the annular connection port; The upper end surface of the support cover and the inner wall corresponding to the upper end surface are both provided with two circles of annular protrusions, which are respectively used to limit the outer ring and the inner ring.

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