Durable self-priming booster pump

Abstract

The invention relates to a durable self-priming booster pump which comprises a base and a pump body arranged on the base, a water inlet of the pump body is connected with a water inlet pipe, the water inlet pipe is connected with a filter pipe, a first filter screen is arranged in the filter pipe, a first rotating rod is rotatably connected in the filter pipe and penetrates through the first filter screen, and a second rotating rod is rotatably connected in the first rotating rod and penetrates through the second filter screen. A first rotating rod is arranged on the base, a scraper is arranged on the first rotating rod and attached to the first filter screen, a driving part used for driving the first rotating rod to rotate is arranged on the base, a storage chamber is arranged below the filter pipe, a communicating opening is formed in the pipe wall of the filter pipe, a sliding block is slidably connected into the communicating opening, and the communicating opening is blocked by the sliding block. A guide groove is formed in the sliding block, and a first driving part is arranged in the filtering pipe. Impurities on the first filter screen can be automatically cleaned and collected, and the first filter screen is prevented from being blocked by the impurities.

Description

Technical Field

[0001] The invention relates to the field of water pumps, and in particular to a durable self-priming booster pump. Background Art

[0002] The self-priming pump is a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. There is no need to install a bottom valve in the pipeline. Before working, you only need to ensure that there is a certain amount of primer liquid stored in the pump body.

[0003] The water inlet of the self-priming pump is equipped with a filter to filter out the silt in the water. During the use of the pump, the silt in the water will gradually accumulate on the surface of the filter, affecting the filtering performance of the filter, resulting in a decrease in the pumping efficiency of the self-priming pump. Therefore, the filter on the self-priming pump needs to be cleaned every once in a while, which makes the self-priming pump unable to run for a long time. The filter needs to be cleaned regularly to ensure the normal operation of the self-priming pump. However, each time the filter is cleaned, the filter needs to be removed from the pump body for cleaning, which is very troublesome and cumbersome. Summary of the invention

[0004] The present application provides a durable self-priming booster pump, which can automatically clean impurities on a first filter screen to prevent the impurities from blocking the first filter screen, so that the self-priming pump can run for a long time when necessary, thereby improving the durability of the main body to a certain extent.

[0005] The present application provides a durable self-priming booster pump adopts the following technical solution: A durable self-priming booster pump comprises a base and a pump body arranged on the base, a water inlet of the pump body is connected to a water inlet pipe, a filter pipe is connected to the water inlet pipe, a first filter screen is arranged in the filter pipe, a rotating rod 1 is rotatably connected in the filter pipe, a rotating shaft of the rotating rod 1 coincides with the axis of the filter pipe, the rotating rod 1 penetrates the first filter screen, a scraper is arranged on the rotating rod 1, the scraper is fitted with the first filter screen, a driving member for driving the rotating rod 1 to rotate is arranged on the base, a storage chamber is arranged below the filter pipe, a connecting port is arranged on the pipe wall of the filter pipe, the connecting port connects the inner cavity of the filter pipe and the storage chamber, the connecting port is directly opposite to the rotating path of the scraper, a slider is slidably connected in the connecting port, the slider blocks the connecting port, a guide groove is arranged on the slider, and in the initial state, a notch at one end of the guide groove conflicts with the side wall of the connecting port, a first driving part is arranged in the filter pipe, and the first driving part is used to drive the slider to slide so that the guide groove connects the inner cavity of the filter pipe and the storage chamber.

[0006] By adopting the above technical solution, the driving member drives the rotating rod to rotate so that the scraper rotates to scrape off impurities such as mud and sand attached to the first filter screen. During the rotation of the scraper, the mud and sand will be scraped into the connecting port. When the scraper rotates to almost approach the connecting port, the first driving part drives the sliding to connect the guide groove to the inner cavity of the filter tube and the storage chamber. The scraper will then rotate to scrape the mud and sand into the connecting port. At the same time, the inner cavity of the filter tube and the storage chamber are connected. The water entering the filter tube will also flow into the guide groove and flow into the storage chamber with the mud and sand, completing the collection of mud and sand. The present application can collect mud and sand to prevent excessive accumulation of mud and sand on the surface of the first filter screen, and can further reduce the impact of mud and sand on the first filter screen, thereby ensuring the long-term operation of the self-priming pump.

[0007] Preferably, a mounting post is provided in the filter tube, and the mounting post is located on a side of the first filter screen away from the driving member, and a first slide groove is provided on a surface of the mounting post facing the first filter screen, and the first driving part includes a connecting member that is slidably connected to the first slide groove in a vertical direction, and a first spring provided in the first slide groove, and the connecting member is connected to a slider, and the elastic force of the first spring acts on the connecting member, and when there is no external force, the first spring presses the connecting member against a side wall of the first slide groove away from the storage chamber, and one end of the slider away from the storage chamber is located on the rotation path of the scraper.

[0008] By adopting the above technical solution, the scraper will collide with the slider during rotation and drive the slider to move toward the storage chamber and compress the first spring. During the movement of the slider, the guide groove connects the inner cavity of the filter tube and the storage chamber. After the scraper rotates until it is no longer in contact with the slider, the first spring will rebound and drive the slider to reset and make the inner cavity of the filter tube and the storage chamber no longer connected.

[0009] Preferably, the guide groove is provided on the side of the slider in contact with the scraper, a guide arc surface is provided on the side of the slider in contact with the scraper, the guide arc surface is connected to the guide groove, and the scraper contacts the guide arc surface during movement.

[0010] By adopting the above technical solution, when the scraper collides with the guide arc surface, the mud and sand on the scraper will be scraped off by the guide arc surface and guided into the guide groove, so that the slider slides to clean the mud and sand on the scraper surface. After the inner cavity of the filter tube and the storage chamber are connected, the water in the filter tube will first enter the gap between the guide groove and the scraper, and flush the mud and sand on the guide groove and the scraper, cleaning the guide groove and the scraper, and at the same time, it can more efficiently carry the mud and sand into the guide groove and finally flow into the storage chamber.

[0011] Preferably, the storage chamber comprises a sediment chamber and a water storage chamber which are interconnected, a scraper is provided at the connection between the sediment chamber and the water storage chamber, a second filter screen is provided on the scraper, and the connecting port connects the sediment chamber and the inner cavity of the filter tube.

[0012] By adopting the above technical solution, the sediment and water passing through the connecting port will first flow into the sediment chamber, and then the water will flow into the water storage chamber through the second filter screen, thereby completing the separation and collection of the sediment and water.

[0013] Preferably, a pressure plate is connected in the mud chamber for sliding along the vertical direction, and the pressure plate contacts the second filter screen when moving. A plurality of through holes are provided on the pressure plate for mud and water to pass through. A third driving part for driving the pressure plate to reciprocate is provided on the mounting column. The third driving part includes a connecting rod provided on the connecting piece, one end of the connecting rod is connected to the connecting piece, and the other end of the connecting rod extends into the mud chamber and is connected to the pressure plate, and the first spring is sleeved on the connecting rod.

[0014] By adopting the above technical solution, when the slider is driven by the scraper to move toward the sediment chamber, the connecting piece and the connecting rod will drive the pressure plate to move away from the filter tube. In the process of moving away from the filter tube, the sediment and water passing through the connecting port will enter the sediment chamber of the pressure plate close to the filter tube. As the pressure plate continues to move away from the filter tube, this space will continue to increase. At the same time, when the pressure plate moves away from the filter tube, it will squeeze the original sediment in the sediment chamber and compact the sediment, so that the sediment chamber can store the sediment with the maximum volume, so that the collection of sediment can be guaranteed when the pump body runs for a long time. When squeezing the sediment, the pressure plate will also scrape off a part of the sediment attached to the second filter net, so that the water entering the sediment chamber can smoothly flow through the second filter net into the water storage chamber. At the same time, the pressure plate will also press the residual water in the sediment into the water storage chamber, thereby improving the separation rate of sediment and water. When the slider moves away from the sediment chamber, the pressure plate will also follow the movement of the slider to reset and approach the filter tube. When the pressure plate moves close to the filter tube, the sediment between the pressure plate and the filter tube will be pressed into the sediment chamber below the pressure plate through multiple perforations. When mud and water pass through the perforations, they will flush away the original mud and sand blocking the perforations, ensuring the unobstructed flow of the perforations.

[0015] Preferably, a channel 1 communicating with the outside world is provided on the side wall of the sediment chamber, a sealing block 1 is slidably connected in the channel 1, the sealing block 1 isolates the sediment chamber from the outside world, a scraper is provided at the connection between the sediment chamber and the water storage chamber, the second filter screen is arranged on the scraper, the scraper is slidably connected in the sediment chamber, and the sediment in the sediment chamber is displaced toward the outside world when the scraper slides, a liquid replenishment groove communicating with the water inlet pipe is provided on the side wall of the water storage chamber, a sealing block 2 is slidably connected in the water storage chamber, and the sealing block 2 blocks the liquid replenishment groove; a screw rod is rotatably connected in the storage chamber, the screw rod is located below the movement path of the pressure plate, the sealing block 1, the scraper and the sealing block 2 are all threadedly connected to the screw rod, a driving component for driving the screw rod to rotate is provided on the filter tube, the driving component drives the screw rod to rotate to make the sealing block 1, the scraper and the sealing block 2 slide, and in the initial state, the pressure plate is located on the side of the scraper close to the filter tube.

[0016] By adopting the above technical solution, the driving component drives the screw to rotate to make the sealing block 1, the scraper and the sealing block 2 slide. When the scraper moves, the compacted mud and sand in the mud chamber will be pushed out of the mud chamber. After the movement of the sealing block 2, the liquid replenishing tank will no longer be blocked. The water in the water storage chamber will flow into the connecting pipe through the liquid replenishing tank, and then flow into the pump body through the water inlet pipe, thereby automatically completing the water filling of the pump body.

[0017] Preferably, a cavity is provided in the water storage chamber, the screw rod passes through the water storage chamber, and the driving assembly includes a first gear provided on the screw rod and located in the cavity, a rotating rod second rotatably connected to the cavity, a second gear provided on the rotating rod second and meshing with the first gear, and a second driving part for driving the rotating rod second to rotate.

[0018] By adopting the above technical solution, the second driving unit drives the second rotating rod to rotate, and when the second rotating rod rotates, the first gear and the second gear can cooperate to control the forward and reverse rotation of the screw rod.

[0019] Preferably, the second driving part includes a first rubber wheel arranged on the second rotating rod, a first one-way bearing rotatably connected to the inner wall of the filter tube, a connecting column arranged on the inner ring of the first one-way bearing and connected to the first rotating rod, a second one-way bearing rotatably connected to the first rotating rod, a second rubber wheel sleeved on the outer ring of the first one-way bearing and abutting against the first rubber wheel, and a spring sleeved on the second rotating rod, one end of the spring is connected to the side wall of the cavity, and the other end of the spring is connected to the second rotating rod; the scraper is arranged on the outer ring of the second one-way bearing; a notch is arranged on the second rubber wheel, and when the second rubber wheel rotates until the notch faces the first rubber wheel, the second rubber wheel and the first rubber wheel are separated; when the first rotating rod rotates forward, the outer ring of the second one-way bearing rotates, and the outer ring of the first one-way bearing does not rotate; when the first rotating rod rotates reversely, the outer ring of the first one-way bearing rotates, and the outer ring of the second one-way bearing does not rotate.

[0020] By adopting the above technical solution, when the rotating rod 1 rotates forward, it will drive the outer ring of the second one-way bearing to rotate, thereby driving the scraper to rotate, so that the scraper can scrape off impurities attached to the first filter net. When the rotating rod 1 rotates reversely, it will drive the outer ring of the first one-way bearing to rotate, and the rotation of the outer ring of the first one-way bearing will drive the second rubber wheel to rotate, and the rotation of the second rubber wheel will drive the first rubber wheel to rotate, and the rotation of the first rubber wheel will drive the second rotating rod to rotate and tighten the spring. When the second rubber wheel rotates until the notch faces the first rubber wheel, the second rubber wheel and the first rubber wheel will separate, and after the two separate, the spring will rebound and drive the second rotating rod to rotate.

[0021] Preferably, the driving member is a servo motor arranged on the base, and one end of the rotating rod extends out of the filter tube and is connected to the output shaft of the servo motor.

[0022] By adopting the above technical solution, when the first filter screen needs to be cleaned, the servo motor is started to allow the rotating rod to rotate in the forward direction.

[0023] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention can automatically clean the impurities on the first filter screen to prevent the impurities from blocking the first filter screen, so that the self-priming pump can run for a long time when necessary, and improve the durability of the main body to a certain extent; 2. The present invention can automatically collect sediment and separate sediment and water; 3. The present invention can automatically add water into the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a self-priming pump when the scraper moves to conflict with the guide cambered surface.

[0025] Figure 2 yes Figure 1 Sectional view of the self-priming pump along line AA.

[0026] Figure 3 yes Figure 2 A partial enlarged view of point B in the middle.

[0027] Figure 4 yes Figure 1 Sectional view of the self-priming pump along line CC.

[0028] Figure 5 It is a structural diagram of the connecting parts, the slider and the scraper.

[0029] Figure 6 yes Figure 4 A partial enlarged view of point D in the middle.

[0030] Figure 7 yes Figure 2 A partial enlarged view of point E in the middle.

[0031] Figure 8 yes Figure 2 Schematic diagram of the structure after the middle screw rotates to drive the sealing block 1, the scraper and the sealing block 2 to move.

[0032] Reference numerals: 1, pump body; 2, water inlet pipe; 3, filter pipe; 31, first filter screen; 32, connecting port; 41, rotating rod 1; 42, scraper; 43, driving member; 431, servo motor; 44, storage chamber; 441, sediment chamber; 442, water storage chamber; 443, channel 1; 445, blocking block 1; 446, liquid replenishment tank; 447, blocking block 2; 448, screw rod; 449, cavity; 45, slider; 451, guide groove; 452, guide arc surface; 46, drainage hole; 47, scraper; 471 , second filter screen; 48, pressure plate; 481, perforation; 49, third drive unit; 491, connecting rod; 5, first drive unit; 51, connecting piece; 52, first spring; 6, mounting column; 61, first slide groove; 7, drive assembly; 71, first gear; 72, rotating rod two; 73, second gear; 8, second drive unit; 81, first rubber wheel; 82, first one-way bearing; 83, connecting column; 84, second one-way bearing; 85, second rubber wheel; 851, notch; 86, spring; 9, base. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings to make the technical solution of the present application easier to understand and grasp.

[0034] Reference Figure 1-Figure 2 A durable self-priming booster pump of this embodiment includes a base 9 and a pump body 1 mounted on the base 9. The water inlet of the pump body 1 is connected to a water inlet pipe 2, and the water inlet pipe 2 is connected to a filter tube 3, and a first filter screen 31 is installed in the filter tube 3. A rotating rod 41 is rotatably connected in the filter tube 3, and the rotating shaft of the rotating rod 41 coincides with the axis of the filter tube 3. One end of the rotating rod 41 penetrates the first filter screen 31 and is connected to a scraper 42, and the scraper 42 fits the first filter screen 31. A driving member 43 for driving the rotating rod 41 to rotate is provided on the base 9. The driving member 43 is a servo motor 431 mounted on the pump body 1. One end of the rotating rod 41 away from the first filter screen 31 extends out of the filter tube 3 and is coaxially fixedly connected to the output shaft of the servo motor 431.

[0035] Reference Figure 1-Figure 2A storage chamber 44 is provided below the filter tube 3. The storage chamber 44 includes a sand chamber 441 and a water chamber 442 which are interconnected. A scraper 47 is slidably connected to the connection between the sand chamber 441 and the water chamber 442 along the length direction of the filter tube 3. A second filter screen 471 is provided on the scraper 47. A drainage hole 46 is provided in the water chamber 442. When the water in the water chamber 442 is too full, the water can be discharged through the drainage hole 46.

[0036] Reference Figure 1-Figure 6 A connecting port 32 is provided on the wall of the filter tube 3. The connecting port 32 connects the inner cavity of the filter tube 3 and the sediment cavity 441. The connecting port 32 faces the rotation path of the scraper 42. A slider 45 is connected to the connecting port 32 in a vertical sliding direction. The slider 45 blocks the connecting port 32. A guide groove 451 is provided on the side of the slider 45 that contacts the scraper 42. In the initial state, one end of the guide groove 451 contacts the side wall of the connecting port 32. A guide arc surface 452 is provided on the side of the slider 45 that contacts the scraper 42. The guide arc surface 452 is connected to the guide groove 451. The scraper 42 contacts the guide arc surface 452 during movement.

[0037] Reference Figure 1-Figure 3 The filter tube 3 is provided with a mounting post 6, which is located on the side of the first filter screen 31 away from the driving member 43, and one end of the rotating rod 41 is rotatably connected to the mounting post 6. A first slide groove 61 is provided on the side of the mounting post 6 facing the first filter screen 31.

[0038] Reference Figure 1-Figure 3 , a first driving unit 5 is provided in the filter tube 3, and the first driving unit 5 is used to drive the slider 45 to slide so that the guide groove 451 connects the inner cavity of the filter tube 3 and the storage chamber 44. The first driving unit 5 includes a connecting member 51 that slides and connects to the first slide groove 61 in the vertical direction, and a first spring 52 that is provided in the first slide groove 61, and the connecting member 51 is connected to the slider 45. The elastic force of the first spring 52 acts on the connecting member 51. When there is no external force, the first spring 52 presses the connecting member 51 against the side wall of the first slide groove 61 away from the sediment chamber 441, and the end of the slider 45 away from the storage chamber 44 is located on the rotation path of the scraper 42.

[0039] Reference Figure 1-Figure 3A pressing plate 48 is connected to the sediment chamber 441 in a sliding manner in the vertical direction. When the pressing plate 48 moves, it will contact part of the second filter screen 471. The screw rod 448 is located below the movement path of the pressing plate 48. The pressing plate 48 is provided with a plurality of through holes 481 for the passage of sediment and water. The mounting column 6 is provided with a third driving part 49 for driving the pressing plate 48 to reciprocate. The third driving part 49 includes a connecting rod 491 fixed to a connecting member 51. One end of the connecting rod 491 is connected to the connecting member 51. The other end of the connecting rod 491 extends into the sediment chamber 441 and is connected to the pressing plate 48. The first spring 52 is sleeved on the connecting rod 491. In the initial state, the pressing plate 48 is located on the side of the scraper 47 close to the filter tube 3.

[0040] Reference Figure 1 and Figure 2 The side wall of the sediment chamber 441 is provided with a channel 1 443 connected to the outside world, and a blocking block 1 445 is slidably connected in the channel 1 443 along the length direction of the filter tube 3, and the blocking block 1 445 isolates the outside world from the sediment chamber 441. The side wall of the water storage chamber 442 is provided with a liquid replenishment groove 446 connected to the water inlet pipe 2, and a blocking block 2 447 is slidably connected in the water storage chamber 442 along the length direction of the filter tube 3, and the blocking block 2 447 blocks the liquid replenishment groove 446. The scraper 47 is located between the blocking block 1 445 and the blocking block 2 447.

[0041] Reference Figure 1 , Figure 2 and Figure 7 A screw rod 448 is rotatably connected in the sediment chamber 441, and the axis of the screw rod 448 is parallel to the axis of the rotating rod 1 41. The blocking block 1 445, the scraper 47 and the blocking block 2 447 are all threadedly connected to the screw rod 448, and a driving assembly 7 for driving the screw rod 448 to rotate is provided on the filter tube 3. The driving assembly 7 drives the screw rod 448 to rotate so that the blocking block 1 445, the scraper 47 and the blocking block 2 447 can slide.

[0042] Reference Figure 1 , Figure 2 and Figure 7 The water storage chamber 442 is provided with a cavity 449, the cavity 449 is located between the second filter screen 471 and the second blocking block 447, and the screw rod 448 passes through the cavity 449. The driving assembly 7 includes a first gear 71 coaxially fixed on the screw rod 448 and located in the cavity 449, a second rotating rod 72 rotatably connected in the cavity 449, and a second gear 73 fixed on the second rotating rod 72 and meshed with the first gear 71. The second rotating rod 72 is located between the first rotating rod 41 and the screw rod 448, and the axis of the second rotating rod 72 is parallel to the axis of the first rotating rod 41.

[0043] Reference Figure 1 , Figure 2 and Figure 7The driving assembly 7 also includes a second driving part 8 for driving the second rotating rod 72 to rotate. The second driving part 8 includes a first rubber wheel 81 coaxially fixed on the second rotating rod 72, a first one-way bearing 82 rotatably connected to the inner wall of the filter tube 3, a plurality of connecting columns 83 fixed on the inner ring of the first one-way bearing 82 and connected to the first rotating rod 41, a second one-way bearing 84 rotatably connected to the first rotating rod 41, a second rubber wheel 85 sleeved on the outer ring of the first one-way bearing 82 and meshed with the first rubber wheel 81, and a spring 86 sleeved on the second rotating rod 72.

[0044] Reference Figure 1 , Figure 2 and Figure 7 , one end of the spring 86 is fixedly connected to the side wall of the cavity 449, the other end of the spring 86 is fixedly connected to the rotating rod 72, and the scraper 42 is fixedly connected to the outer ring of the second one-way bearing 84. A notch 851 is provided on the second rubber wheel 85. When the second rubber wheel 85 rotates until the notch 851 faces the first rubber wheel 81, the second rubber wheel 85 and the first rubber wheel 81 are separated. When the rotating rod 41 rotates forward, the outer ring of the second one-way bearing 84 rotates, and the outer ring of the first one-way bearing 82 does not rotate; when the rotating rod 41 rotates reversely, the outer ring of the first one-way bearing 82 rotates, and the outer ring of the second one-way bearing 84 does not rotate. In the present application, the second rubber wheel 85 is larger than the first rubber wheel 81, and the second gear 73 is larger than the first gear 71, so that the rotation of the screw 448 has a sufficient transmission ratio.

[0045] The cleaning steps for the filter screen of the self-priming pump in this application are as follows: Reference Figure 1-Figure 6 After the self-priming pump is running, every day, the servo motor 431 starts to drive the rotating rod 41 to rotate forward. When the rotating rod 41 rotates forward, it will drive the outer ring of the second one-way bearing 84 to rotate, thereby driving the scraper 42 to rotate, but when the rotating rod 41 rotates forward, it will not drive the outer ring of the first one-way bearing 82 to rotate. During the rotation of the scraper 42, it will collide with the guide arc surface 452 and drive the slider 45 to move toward the storage chamber 44 and compress the first spring 52. When the scraper 42 collides with the guide arc surface 452, the mud and sand on the scraper 42 will be scraped off by the guide arc surface 452 and guided into the guide groove 451, so that the slider 45 slides to clean the mud and sand on the surface of the scraper 42. During the movement of the slider 45, the guide groove 451 connects the inner cavity of the filter tube 3 and the mud and sand cavity 441.

[0046] Reference Figure 1-Figure 6When the guide groove 451 moves to the inner cavity of the filter tube 3 and the sediment chamber 441, the water in the filter tube 3 will enter the gap between the guide groove 451 and the scraper 42, and wash the sediment on the guide groove 451 and the scraper 42, so as to clean the guide groove 451 and the scraper 42, and at the same time, the sediment can be more efficiently brought into the guide groove 451 and finally flow into the sediment chamber 441. The water and solid impurities entering the sediment chamber 441 will be separated by the second filter screen 471, the water will flow into the water storage chamber 442, and the solid impurities will be retained in the sediment chamber 441.

[0047] Reference Figure 1-Figure 3 When the slider 45 is driven by the scraper 42 to move toward the sediment chamber 441, it will drive the pressing plate 48 to move away from the filter tube 3 through the connecting piece 51 and the connecting rod 491. In the process of moving away from the filter tube 3, the sediment and water will enter the sediment chamber 441 of the pressing plate 48 close to the filter tube 3 through the connecting port 32. As the pressing plate 48 continues to move away from the filter tube 3, this space will continue to increase.

[0048] According to Figure 1-Figure 3 When the pressing plate 48 moves away from the filter tube 3, it squeezes the original sand in the sand chamber 441 and compacts the sand, so that the sand chamber 441 can store the sand with the maximum volume, so that the sand collection can be guaranteed when the pump body 1 runs for a long time. When squeezing the sand, the pressing plate 48 will also scrape off a part of the sand attached to the second filter screen 471, so that the water entering the sand chamber 441 can smoothly pass through the second filter screen 471 and flow into the water storage chamber 442. At the same time, the pressing plate 48 will also press the water remaining in the sand into the water storage chamber 442, thereby improving the separation rate of sand and water.

[0049] According to Figure 1-Figure 3 When the scraper 42 moves to no longer press the slider 45, the first spring 52 will rebound and push the connecting member 51 and the slider 45 to move back to the original position, so that the slider 45 moves away from the sediment chamber 441. When the connecting member 51 moves back to the original position, it will bring the pressing plate 48 to move back to the original position and approach the filter tube 3 through the connecting rod 491. When the pressing plate 48 moves close to the filter tube 3, the sediment between the pressing plate 48 and the filter tube 3 will be pressed into the sediment chamber 441 below the pressing plate 48 through the multiple perforations 481. When the sediment and water pass through the perforations 481, the original sediment blocked in the perforations 481 will be flushed away to ensure the unobstructed perforations 481.

[0050] Reference Figure 1 , Figure 2 and Figure 7Five days after the self-priming pump starts to operate, the servo motor 431 will drive the rotating rod 1 41 to reverse. During the reversal of the rotating rod 1 41, the outer ring of the first one-way bearing 82 will be driven to rotate, but the outer ring of the second one-way bearing 84 will not be affected. The outer ring of the first one-way bearing 82 will rotate with the second rubber wheel 85, and the rotation of the second rubber wheel 85 will drive the first rubber wheel 81 to rotate, and the rotation of the first rubber wheel 81 will drive the rotating rod 2 72 to rotate and tighten the spring 86.

[0051] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 When the second rotating rod 72 rotates, the screw rod 448 can be driven to rotate through the first gear 71 and the second gear 73. The rotation of the screw rod 448 will drive the blocking block 1 445, the scraper 47, and the second blocking block 447 to slide. The sliding of the blocking block 1 445 will no longer block the outside world and the sand chamber 441. The movement of the scraper 47 will scrape the sand squeezed in the sand chamber 441 to the outside world. When the blocking block 2 447 moves, it will no longer block the liquid replenishment groove 446. The water in the water storage chamber 442 will flow into the connecting pipe through the liquid replenishment groove 446, and then flow into the pump body 1 through the water inlet pipe 2, automatically completing the water replenishment of the pump body 1 to prevent the water in the pump body 1 from drying up.

[0052] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 When the second rubber wheel 85 rotates to the point where the notch 851 faces the first rubber wheel 81, the first rubber wheel 81 and the second rubber wheel 85 are no longer in contact. At this time, the spring 86 will rebound and drive the second rotating rod 72 to rotate. The rotation of the second rotating rod 72 will drive the screw rod 448 to rotate through the cooperation of the first gear 71 and the second gear 73. The rotation of the screw rod 448 will drive the blocking block 1 445, the scraper 47, and the blocking block 2 447 to move and reset. The rotation of the first rubber wheel 81 will drive the second rubber wheel 85 and the outer ring of the first one-way bearing 82 to rotate. At this time, the rotation of the outer ring of the second one-way bearing 84 will not cause the inner wheel of the first one-way bearing 82 to rotate.

[0053] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A durable self-priming booster pump, comprising a base (9), a pump body (1) arranged on the base (9), a water inlet of the pump body (1) connected to a water inlet pipe (2), a filter pipe (3) connected to the water inlet pipe (2), a first filter screen (31) arranged in the filter pipe (3), characterized in that: A rotating rod (41) is rotatably connected inside the filter tube (3), the rotating shaft of the rotating rod (41) coincides with the axis of the filter tube (3), the rotating rod (41) penetrates the first filter screen (31), a scraper (42) is provided on the rotating rod (41), the scraper (42) is in contact with the first filter screen (31), a driving member (43) for driving the rotating rod (41) to rotate is provided on the base (9), a storage chamber (44) is provided below the filter tube (3), a connecting port (32) is provided on the tube wall of the filter tube (3), and the connecting port (32) is connected to the filter tube (3). The filter tube (3) has an inner cavity and a storage chamber (44), the connecting port (32) is directly opposite to the rotation path of the scraper (42), a slider (45) is slidably connected in the connecting port (32), the slider (45) blocks the connecting port (32), a guide groove (451) is provided on the slider (45), and in an initial state, one end of the guide groove (451) is in conflict with the side wall of the connecting port (32), and a first driving part (5) is provided in the filter tube (3), and the first driving part (5) is used to drive the slider (45) to slide so that the guide groove (451) connects to the inner cavity of the filter tube (3) and the storage chamber (44).

2. A durable self-priming booster pump according to claim 1, characterized in that: A mounting post (6) is provided in the filter tube (3), and the mounting post (6) is located on a side of the first filter screen (31) away from the driving member (43). A first slide groove (61) is provided on a side of the mounting post (6) facing the first filter screen (31). The first driving part (5) comprises a connecting member (51) slidably connected to the first slide groove (61) in a vertical direction, and a first spring (52) provided in the first slide groove (61). The connecting member (51) is connected to the slider (45), and the elastic force of the first spring (52) acts on the connecting member (51). When no external force is applied, the first spring (52) presses the connecting member (51) against a side wall of the first slide groove (61) away from the storage chamber (44). One end of the slider (45) away from the storage chamber (44) is located on the rotation path of the scraper (42).

3. A durable self-priming booster pump according to claim 2, characterized in that: The guide groove (451) is provided on the side of the slider (45) in contact with the scraper (42); a guide arc surface (452) is provided on the side of the slider (45) in contact with the scraper (42); the guide arc surface (452) is connected to the guide groove (451); and the scraper (42) is in contact with the guide arc surface (452) during movement.

4. A durable self-priming booster pump according to claim 3, characterized in that: The storage chamber (44) comprises a sediment chamber (441) and a water storage chamber (442) which are interconnected. A second filter screen (471) is provided at the connection point between the sediment chamber (441) and the water storage chamber (442). The communication port (32) is connected to the sediment chamber (441) and the inner cavity of the filter tube (3).

5. A durable self-priming booster pump according to claim 4, characterized in that: A pressure plate (48) is slidably connected in the vertical direction in the sediment chamber (441). When the pressure plate (48) moves, it contacts the second filter screen (471). A plurality of through holes (481) are provided on the pressure plate (48) for sediment and water to pass through. The mounting column (6) is provided with a third driving part (49) for driving the pressure plate (48) to reciprocate. The third driving part (49) includes a connecting rod (491) provided on the connecting member (51). One end of the connecting rod (491) is connected to the connecting member (51), and the other end of the connecting rod (491) extends into the sediment chamber (441) and is connected to the pressure plate (48). The first spring (52) is sleeved on the connecting rod (491).

6. A durable self-priming booster pump according to claim 5, characterized in that: A channel (443) communicating with the outside is provided on the side wall of the sediment chamber (441), and a blocking block (445) is slidably connected in the channel (443). The blocking block (445) isolates the sediment chamber (441) from the outside. A scraper (47) is provided at the connection between the sediment chamber (441) and the water storage chamber (442). The second filter (471) is provided on the scraper (47). The scraper (47) is slidably connected in the sediment chamber (441). When the scraper (47) slides, the sediment in the sediment chamber (441) is pushed toward the outside. A liquid replenishment groove (446) communicating with the water inlet pipe (2) is provided on the side wall of the water storage chamber (442). A filter (471) is slidably connected in the water storage chamber (442). A second blocking block (447), wherein the second blocking block (447) blocks the liquid replenishing groove (446); a screw rod (448) is rotatably connected in the storage chamber (44), wherein the screw rod (448) is located below the movement path of the pressure plate (48); the first blocking block (445), the scraper (47) and the second blocking block (447) are all threadedly connected to the screw rod (448); a driving component (7) for driving the screw rod (448) to rotate is provided on the filter tube (3); the driving component (7) drives the screw rod (448) to rotate so as to make the first blocking block (445), the scraper (47) and the second blocking block (447) slide; in an initial state, the pressure plate (48) is located on a side of the scraper (47) close to the filter tube (3).

7. A durable self-priming booster pump according to claim 6, characterized in that: The water storage chamber (442) is provided with a cavity (449), the screw rod (448) passes through the water storage chamber (442), and the driving assembly (7) comprises a first gear (71) provided on the screw rod (448) and located in the cavity (449), a second rotating rod (72) rotatably connected to the cavity (449), a second gear (73) provided on the second rotating rod (72) and meshing with the first gear (71), and a second driving part (8) for driving the second rotating rod (72) to rotate.

8. A durable self-priming booster pump according to claim 7, characterized in that: The second driving part (8) comprises a first rubber wheel (81) arranged on the second rotating rod (72), a first one-way bearing (82) rotatably connected to the inner wall of the filter tube (3), a connecting column (83) arranged on the inner ring of the first one-way bearing (82) and connected to the first rotating rod (41), a second one-way bearing (84) rotatably connected to the first rotating rod (41), a second rubber wheel (85) sleeved on the outer ring of the first one-way bearing (82) and abutting against the first rubber wheel (81), and a spring (86) sleeved on the second rotating rod (72), one end of the spring (86) being connected to the side wall of the cavity (449), and the spring (86) being connected to the side wall of the cavity (449). The other end of the spring (86) is connected to the second rotating rod (72); the scraper (42) is arranged on the outer ring of the second one-way bearing (84); the second rubber wheel (85) is provided with a notch (851), and when the second rubber wheel (85) rotates until the notch (851) faces the first rubber wheel (81), the second rubber wheel (85) and the first rubber wheel (81) are separated; when the rotating rod (41) rotates forward, the outer ring of the second one-way bearing (84) rotates, and the outer ring of the first one-way bearing (82) does not rotate; when the rotating rod (41) rotates reversely, the outer ring of the first one-way bearing (82) rotates, and the outer ring of the second one-way bearing (84) does not rotate.

9. A durable self-priming booster pump according to any one of claims 1 to 8, characterized in that: The driving member (43) is a servo motor (431) arranged on the base (9), and one end of the rotating rod (41) extends out of the filter tube (3) and is connected to the output shaft of the servo motor (431).

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