Anti-clogging submersible pump

Abstract

This invention belongs to the field of submersible pump technology and discloses an anti-clogging submersible pump, including a submersible pump body. A filter screen is fixedly connected to the outside of the submersible pump body. Water inlets are equidistantly opened on the filter screen. A movable groove is opened on the inner wall of the submersible pump body. An outer ring is movably connected inside the movable groove. A drive impeller is fixedly connected to the inner side of the outer ring. A connecting rod is fixedly connected to the bottom of the drive impeller. This invention allows external water to be introduced into the pump body through the water inlets during operation. The water flow drives the drive impeller to rotate, which in turn drives the outer ring to rotate. The outer ring then drives a first gear to rotate through its teeth. The second gear meshing with the outer ring drives a rotating ring to rotate, causing a scraper to rotate accordingly. This scrapes away large particles of silt and sand accumulated and adsorbed outside the filter screen, preventing excessive accumulation that could hinder water flow and ensuring the submersible pump body operates at high efficiency.

Description

Technical Field

[0001] This invention belongs to the field of submersible pump technology, specifically an anti-clogging submersible pump. Background Technology

[0002] Submersible pumps are important equipment for deep well water extraction. When in use, the entire unit is submerged in water to extract groundwater to the surface. They are important equipment for domestic water supply, mine rescue, industrial cooling, farmland irrigation, seawater lifting, etc., and are widely used in various fields of life. In order to prevent the inside of the submersible pump from being blocked by large particles of mud and sand, a filter screen is usually installed on the outside of the water inlet to achieve a filtration effect.

[0003] While existing submersible pump filter screens can prevent large particles of sediment from entering the pump body during use, the continuous flow of water can carry large floating sediment particles, which then accumulate around the water inlet of the filter screen. Excessive accumulation can affect the working efficiency of the submersible pump. At the same time, the strong suction generated by the water flow can cause large external sediment particles to get stuck inside the water inlet, and prolonged lack of cleaning can easily cause the filter screen to become clogged. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-clogging submersible pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a submersible pump for preventing clogging, comprising a submersible pump body, a filter screen fixedly connected to the outside of the submersible pump body, water inlets evenly spaced on the filter screen, a movable groove on the inner wall of the submersible pump body, an outer ring movably connected inside the movable groove, a drive impeller fixedly connected to the inner side of the outer ring, a connecting rod fixedly connected to the bottom of the drive impeller, a connecting plate fixedly connected to the outer side of the connecting rod, a movable cavity formed in the middle of the connecting plate, a spring fixedly connected inside the movable cavity, and a sliding connection fixedly connected to the outside of the spring. The moving plate inside the moving cavity has adjusting plates fixedly connected to the outer sides of both its upper and lower ends. A clearing plate located between the two adjusting plates is fixedly connected to the outer side of the moving plate. A baffle is fixedly connected to the outer side of the connecting plate. The external side of the submersible pump body has a notch communicating with the moving groove. A first gear is movably connected to the top of the filter screen cover. A second gear meshing with the first gear is movably connected to the top of the filter screen cover. A rotating ring meshing with the second gear is movably connected to the top of the filter screen cover. A scraper is fixedly installed on the outside of the rotating ring. Fixed rings are fixedly installed on the inner walls of both the upper and lower ends of the filter screen cover.

[0006] Preferably, the outer side of the filter screen cover has grooves equidistantly arranged in a ring, the grooves having an arc-shaped structure, and the scraper is in contact with the outer wall of the filter screen cover.

[0007] Preferably, the bottom of the rotating ring is fixedly connected to a movable plate that is movably engaged with the top of the filter screen cover, and teeth that mesh with the second gear are fixedly installed at equal intervals along the annular line on the inner wall of the rotating ring, and teeth that mesh with the first gear are fixedly installed at equal intervals along the annular line on the outer side of the outer ring.

[0008] Preferably, a limiting groove is formed on the inner wall of the movable groove, and limiting strips that are movably connected inside the limiting groove are fixedly installed at the top and bottom of the outer ring.

[0009] Preferably, the inner wall of the fixing ring is provided with grooves at equal intervals along the annular path, and the inner wall of the fixing ring is provided with inclined surfaces that are offset from the grooves at equal intervals along the annular path.

[0010] Preferably, the upper and lower ends of the connecting plate are provided with a first opening that communicates with the movable cavity, the outer side of the connecting plate is provided with a second opening that communicates with the movable cavity, and the outer side of the baffle is provided with a third opening.

[0011] Preferably, the contact surface between the adjusting plate and the fixing ring adopts an arc-shaped structure, the outer sides of the unblocking plate and the baffle both adopt an arc-shaped structure, and the two sides inside the water inlet are chamfered.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. This invention introduces external water into the pump body through the water inlet. The water flow drives the impeller to rotate, which in turn drives the outer ring to rotate. The outer ring drives the first gear to rotate through its teeth, and the second gear meshing with it drives the rotating ring to rotate. The scraper then rotates accordingly, thereby scraping away large particles of mud and sand that have accumulated and been adsorbed on the outside of the filter screen. This prevents excessive accumulation from causing insufficient water flow and ensures that the submersible pump body is always working at high efficiency.

[0014] 2. This invention uses a rotating impeller to drive a connecting rod to rotate, which in turn drives a connecting plate to rotate. This causes the adjusting plates at both ends to rotate along the inner wall of the fixed ring. When the adjusting plate slowly slides along the inclined plane, it pushes the moving plate to slide along the inside of the movable cavity and compresses the internal spring, giving it elasticity. When the adjusting plate slides off the inclined plane, the elastic spring quickly pushes the moving plate outward, thereby pushing the unblocking plate to quickly insert into the water inlet. This can directly knock out large particles of mud and sand stuck inside the water inlet. At the same time, the baffle, together with the unblocking plate, can block the water inlet in that area, preventing water from flowing into the pump body through the water inlet in that area. The filter screen covers the area where water cannot flow, allowing the knocked-out large particles of mud and sand to fall down by their own gravity. This effectively prevents blockage at the water inlet and ensures unobstructed water flow.

[0015] 3. In this invention, the slowly rotating scraper removes and pushes the mud and sand adsorbed and accumulated outside the filter screen. As the scraper pushes the mud and sand, it encounters resistance from the water during its movement. Therefore, when the mud and sand are pushed to the groove area, the water flowing along the surface of the scraper will directly wash the mud and sand pushed on the scraper, effectively cleaning the scraper and preventing the scraped mud and sand from being pushed to other areas. Since the groove is not irrigated, the water in this area is relatively stable, so the washed-off mud and sand will directly settle and avoid easily flowing with the water flow again. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the drive impeller of the present invention;

[0018] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the connecting plate of the present invention;

[0020] Figure 5 This is a schematic diagram showing the position of the first gear in this invention;

[0021] Figure 6 This is a schematic diagram of the connection between the adjusting plate and the inner wall of the fixing ring of the present invention;

[0022] Figure 7 This is a schematic diagram showing the position of the baffle in this invention;

[0023] Figure 8 This is a schematic diagram of the scraper of the present invention moving to the groove.

[0024] In the diagram: 1. Submersible pump body; 2. Filter screen cover; 201. Groove; 3. Water inlet; 301. Chamfer; 4. Rotating ring; 401. Movable plate; 5. Scraper; 6. Drive impeller; 7. First gear; 8. Second gear; 9. Connecting rod; 10. Fixed ring; 101. Inclined surface; 102. Groove; 11. Outer ring; 111. Limiting strip; 12. Connecting plate; 121. First opening; 122. Second opening; 13. Movable cavity; 14. Spring; 15. Moving plate; 16. Unblocking plate; 17. Adjusting plate; 18. Notch; 19. Baffle; 191. Third opening; 20. Movable groove. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 8 As shown, this embodiment of the invention provides an anti-clogging submersible pump, including a submersible pump body 1. A filter screen cover 2 is fixedly connected to the outside of the submersible pump body 1. Water inlets 3 are equidistantly opened on the filter screen cover 2. A movable groove 20 is opened on the inner wall of the submersible pump body 1. An outer ring 11 is movably connected inside the movable groove 20. A drive impeller 6 is fixedly connected to the inner side of the outer ring 11. A connecting rod 9 is fixedly connected to the bottom of the drive impeller 6. A connecting plate 12 is fixedly connected to the outer side of the connecting rod 9. A movable cavity 13 is opened in the middle of the connecting plate 12. A spring 14 is fixedly connected inside the movable cavity 13. A sliding contact is fixedly connected to the outside of the spring 14 inside the movable cavity 13. The movable plate 15 has an adjusting plate 17 fixedly connected to the outer sides of both the upper and lower ends of the movable plate 15. The outer side of the movable plate 15 is fixedly connected to a dredging plate 16 located between the two adjusting plates 17. The outer side of the connecting plate 12 is fixedly connected to a baffle 19. The outer side of the submersible pump body 1 has a notch 18 that communicates with the movable groove 20. The top of the filter screen cover 2 is movably connected to a first gear 7. The top of the filter screen cover 2 is movably connected to a second gear 8 that meshes with the first gear 7. The top of the filter screen cover 2 is movably connected to a rotating ring 4 that meshes with the second gear 8. A scraper 5 is fixedly installed on the outer side of the rotating ring 4. Fixed rings 10 are fixedly installed on the inner walls of both the upper and lower ends of the filter screen cover 2.

[0027] The working principle and beneficial effects of the above technical solution are as follows: Water from outside is introduced into the pump body through the inlet 3 via the submersible pump body 1. The water flow drives the impeller 6 to rotate, which in turn drives the outer ring 11 to rotate. The outer ring 11 then drives the first gear 7 to rotate via its teeth. The second gear 8 meshing with the impeller drives the rotating ring 4 to rotate, causing the scraper 5 to rotate as well, thus scraping away large particles of mud and sand accumulated and adsorbed on the outside of the filter screen 2. Simultaneously, the rotating impeller 6 drives the connecting rod 9 to rotate, which in turn drives the connecting plate 12 to rotate. This causes the adjusting plates 17 at both ends to rotate along the inner wall of the fixed ring 10. When the adjusting plate 17 slowly slides along the inclined plane 101, it pushes the moving plate 15 to slide along the inside of the movable cavity 13 and compresses the internal spring 14, giving it elasticity. When the adjusting plate 17 slides off the inclined plane 101, the elastic spring 14 quickly pushes the moving plate 15 outwards. The pusher plate 16 is quickly inserted into the water inlet 3, which can directly knock out large particles of mud and sand stuck inside the water inlet 3. At the same time, the baffle plate 19, together with the pusher plate 16, can block the water inlet 3 in this area, so that the water cannot flow into the pump body through the water inlet 3 in this area. The water outside the filter screen 2 cannot flow, so the large particles of mud and sand knocked out can fall down by their own gravity. When the slowly rotating scraper plate 5 scrapes away the mud and sand adsorbed and accumulated outside the filter screen 2 and pushes the mud and sand to move, the scraper plate 5 will encounter water resistance during the process of pushing the mud and sand. Therefore, when the mud and sand are pushed to the groove 201 area, the water will directly wash the mud and sand pushed on the scraper plate 5, which can effectively clean the scraper plate 5 and prevent the scraped mud and sand from being pushed to other areas. Since the groove 201 is not water-flowing, the water in this area is relatively stable, so the washed mud and sand will directly settle down and prevent it from easily flowing with the water flow.

[0028] like Figure 6 As shown, in one embodiment, the filter screen cover 2 has grooves 201 equidistantly arranged along the outer edge of the ring. The grooves 201 have an arc-shaped structure, and the scraper 5 is in contact with the outer wall of the filter screen cover 2.

[0029] The working principle and beneficial effects of the above technical solution are as follows: Since water does not flow through the groove 201, the water in this area is relatively stable. Therefore, when the mud and sand are pushed to the groove 201 area, the water flowing along the surface of the scraper 5 will directly wash the mud and sand pushed on the scraper 5. The fallen mud and sand will settle directly, which can prevent it from easily flowing with the water flow again.

[0030] like Figures 2-5 As shown, in one embodiment, the bottom of the rotating ring 4 is fixedly connected to a movable plate 401 that is movably engaged with the top of the filter screen cover 2. The inner wall of the rotating ring 4 is fixedly installed with teeth that mesh with the second gear 8 along the annular equidistant distance. The outer ring 11 is fixedly installed with teeth that mesh with the first gear 7 along the annular equidistant distance.

[0031] The working principle and beneficial effects of the above technical solution are as follows: the support of the movable plate 401 can provide a stable support force for the rotating ring 4, and at the same time, it can ensure that the rotating ring 4 rotates stably following the second gear 8 through the teeth, and is not prone to failure; half of the first gear 7 is located inside the notch 18, and the rotating outer ring 11 will drive the first gear 7 to rotate through the teeth, which is convenient to use.

[0032] like Figure 3 As shown, in one embodiment, a limiting groove is formed on the inner wall of the movable groove 20, and a limiting strip 111 that is movably connected inside the limiting groove is fixedly installed at the top and bottom of the outer ring 11.

[0033] The working principle and beneficial effects of the above technical solution are as follows: by the movement of the limiting strip 111 inside the limiting groove, the outer ring 11 can be stably rotated inside the movable groove 20, ensuring that it can be stably rotated under the drive of the impeller 6, and ensuring that the cooperation between the various mechanisms is more stable.

[0034] like Figure 4 As shown, in one embodiment, the inner wall of the fixing ring 10 is provided with slots 102 at equal intervals along the annular path, and the inner wall of the fixing ring 10 is provided with inclined surfaces 101 that are offset from the slots 102 at equal intervals along the annular path.

[0035] The working principle and beneficial effects of the above technical solution are as follows: The rotating connecting rod 9 will drive the adjusting plate 17 to rotate along the inner wall of the fixed ring 10 through the connecting plate 12. When the adjusting plate 17 slowly slides along the inclined plane 101, it will push the moving plate 15 to slide along the inside of the movable cavity 13 and squeeze the internal spring 14 to make it elastic. When the adjusting plate 17 slides off the inclined plane 101, the elastic spring 14 will quickly push the moving plate 15 outward, thereby pushing the unblocking plate 16 to quickly insert into the water inlet 3. This can directly knock out large particles of mud and sand stuck in the water inlet 3, thereby unblocking the water inlet 3 and effectively preventing blockage.

[0036] like Figure 7 As shown, in one embodiment, the upper and lower ends of the connecting plate 12 are provided with a first opening 121 that communicates with the movable cavity 13, the outer side of the connecting plate 12 is provided with a second opening 122 that communicates with the movable cavity 13, and the outer side of the baffle 19 is provided with a third opening 191.

[0037] The working principle and beneficial effects of the above technical solution are as follows: The adjusting plates 17 at the upper and lower ends slide along the first opening 121 and are limited by the first opening 121, which makes them more stable during the sliding process. The unblocking plate 16 in the middle area slides along the second opening 122 and passes through the third opening 191 to insert into the water inlet 3 for unblocking work. It also facilitates its contraction and is very stable during the process.

[0038] like Figure 2 , 7 As shown, in one embodiment, the contact surface between the adjusting plate 17 and the fixing ring 10 adopts an arc-shaped structure, the outer sides of the unblocking plate 16 and the baffle 19 both adopt an arc-shaped structure, and the two sides inside the water inlet 3 are provided with chamfers 301.

[0039] The working principle and beneficial effects of the above technical solution are as follows: Since the contact surface between the adjusting plate 17 and the fixing ring 10 adopts an arc-shaped structure, the adjusting plate 17 can slide along the groove 102 to the inclined surface 101 and slide along it continuously, making the connection smoother and without obstruction, and the sliding more stable; Since the outer side of the unblocking plate 16 adopts an arc-shaped structure, it can slide and retract into the interior along the chamfer 301 after being inserted into the water inlet 3; Since the outer side of the baffle 19 adopts an arc-shaped structure, it can better fit with the inner wall of the filter screen 2, which can block the external water from flowing in through the water inlet 3, so that the water outside the area on the filter screen 2 cannot flow, and the large particles of mud and sand that are knocked out settle down by their own weight.

[0040] Working principle and usage process:

[0041] First, the submersible pump body 1 is started to introduce external water into the pump body through the water inlet 3 after being filtered by the filter screen 2. The water flow will drive the impeller 6 to rotate, which in turn drives the outer ring 11 to rotate. The outer ring 11 drives the first gear 7 to rotate through the teeth. The second gear 8 meshing with it will drive the rotating ring 4 to rotate. The scraper 5 will then rotate, thereby scraping away the large particles of mud and sand that have accumulated and been adsorbed on the outside of the filter screen 2 and pushing the mud and sand to move.

[0042] During the process, the rotating drive impeller 6 drives the connecting rod 9 to rotate, which in turn drives the connecting plate 12 to rotate, causing the adjusting plates 17 at the upper and lower ends to rotate along the inner wall of the fixed ring 10.

[0043] When the adjusting plate 17 slides slowly along the inclined plane 101, it will push the moving plate 15 to slide along the inside of the movable cavity 13 and squeeze the internal spring 14 to make it elastic. When the adjusting plate 17 slides off the inclined plane 101, the elastic spring 14 will quickly push the moving plate 15 outward, thereby pushing the unblocking plate 16 to quickly insert into the water inlet 3. This can directly knock out large particles of mud and sand stuck in the water inlet 3. At the same time, the baffle 19, together with the unblocking plate 16, can block the water inlet 3 in this area, so that the water cannot flow into the pump body through the water inlet 3 in this area. The water outside the area on the filter screen 2 cannot flow, so that the large particles of mud and sand knocked out can fall down by their own gravity, which can effectively prevent the water inlet 3 from being blocked.

[0044] Since the scraper 5 encounters resistance from the water during the process of pushing the mud and sand, when the mud and sand are pushed to the groove 201 area, the water flowing along the surface of the scraper 5 will directly wash the mud and sand pushed on the scraper 5, which can effectively clean the scraper 5 and prevent the scraped mud and sand from being pushed to other areas. Since the groove 201 is not water-permeable, the water in this area is relatively stable, so the washed mud and sand will directly settle.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant submersible pump, comprising a submersible pump body (1), characterized in that: A filter screen cover (2) is fixedly connected to the outside of the submersible pump body (1). Water inlets (3) are equidistantly opened on the filter screen cover (2). A movable groove (20) is opened on the inner wall of the submersible pump body (1). An outer ring (11) is movably connected inside the movable groove (20). A drive impeller (6) is fixedly connected to the inner side of the outer ring (11). A connecting rod (9) is fixedly connected to the bottom of the drive impeller (6). A connecting plate (12) is fixedly connected to the outer side of the connecting rod (9). A movable cavity (13) is opened in the middle of the connecting plate (12). A spring (14) is fixedly connected inside the movable cavity (13). A sliding plate (15) is slidably connected inside the movable cavity (13) and the sliding plate (15) moves up and down. Adjustment plates (17) are fixedly connected to the outer sides of both ends. A dredging plate (16) located between the two adjustment plates (17) is fixedly connected to the outer side of the moving plate (15). A baffle (19) is fixedly connected to the outer side of the connecting plate (12). A notch (18) communicating with the movable groove (20) is opened on the outside of the submersible pump body (1). A first gear (7) is movably connected to the top of the filter screen cover (2). A second gear (8) meshing with the first gear (7) is movably connected to the top of the filter screen cover (2). A rotating ring (4) meshing with the second gear (8) is movably connected to the top of the filter screen cover (2). A scraper (5) is fixedly installed on the outside of the rotating ring (4). Fixed rings (10) are fixedly installed on the inner walls of both the upper and lower ends of the filter screen cover (2). The inner wall of the fixing ring (10) is provided with slots (102) at equal intervals along the annular path, and the inner wall of the fixing ring (10) is provided with inclined surfaces (101) that are offset from the slots (102) at equal intervals along the annular path. The connecting plate (12) has a first opening (121) at both the upper and lower ends that communicates with the movable cavity (13), the connecting plate (12) has a second opening (122) at the outside that communicates with the movable cavity (13), and the baffle (19) has a third opening (191) on the outside. The rotating connecting rod (9) will drive the adjusting plate (17) to rotate along the inner wall of the fixed ring (10) through the connecting plate (12). When the adjusting plate (17) slowly slides along the inclined plane (101), it will push the moving plate (15) to slide along the inside of the active cavity (13) and squeeze the internal spring (14) to make it elastic. When the adjusting plate (17) slides away from the inclined plane (101), the elastic spring (14) will quickly push the moving plate (15) outward, thereby pushing the unblocking plate (16) to quickly insert into the water inlet (3). The adjusting plates (17) at the top and bottom end slide along the first opening (121) and are limited by the first opening (121). The unblocking plate (16) in the middle area slides along the second opening (122) and passes through the third opening (191) to insert into the water inlet (3).

2. The anti-clogging submersible pump according to claim 1, characterized in that: The filter screen cover (2) has grooves (201) equidistantly arranged along the outer edge of the ring. The grooves (201) have an arc-shaped structure. The scraper (5) is attached to the outer wall of the filter screen cover (2).

3. The anti-clogging submersible pump according to claim 1, characterized in that: The bottom of the rotating ring (4) is fixedly connected to a movable plate (401) that is movably engaged with the top of the filter screen cover (2). The inner wall of the rotating ring (4) is fixedly installed with teeth that mesh with the second gear (8) along the annular equidistant distance. The outer ring (11) is fixedly installed with teeth that mesh with the first gear (7) along the annular equidistant distance.

4. The anti-clogging submersible pump according to claim 1, characterized in that: A limiting groove is provided on the inner wall of the movable groove (20), and a limiting strip (111) is fixedly installed on the top and bottom of the outer ring (11) and is movably connected inside the limiting groove.

5. A clog-resistant submersible pump according to claim 1, characterized in that: The contact surface between the adjusting plate (17) and the fixing ring (10) adopts an arc-shaped structure. The outer sides of the unblocking plate (16) and the baffle (19) both adopt an arc-shaped structure. The two sides inside the water inlet (3) are provided with chamfers (301).

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