Self-cleaning filter with adjusting function

Abstract

The invention relates to the technical field of filters, and particularly discloses a self-cleaning filter with an adjusting function, which comprises a filter body, and also comprises: a cleaning assembly arranged on the filter body and used for cleaning a filter screen; the pressure difference between the inner side and the outer side of the filter screen can be detected through the detection assembly, the regulation and control assembly is automatically triggered to control the cleaning assembly to clean the filter screen, meanwhile, the pressure difference threshold value of the detection assembly can be automatically adjusted through the regulation and control assembly according to the amount of impurities in a water body, and the working time of the filter body can be recorded through the timing assembly; and when the set time is reached, the cleaning assembly can be automatically triggered through the triggering assembly to clean the filter screen, the cleaning period can be adjusted according to the impurity condition of the water body, dual guarantee is formed with pressure difference control, the balance of the use economy and safety of the filter body is achieved, and the applicability of the filter body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and specifically to a self-cleaning filter with an adjustment function. Background Art

[0002] A self-cleaning filter is a device that intercepts impurities in water through a filter screen, reduces turbidity, and automatically completes the cleaning of the filter screen. It can automatically monitor the accumulation of impurities on the filter screen and trigger the cleaning program through differential pressure or timing. Without shutting down the machine, it can complete sewage discharge. Its core component uses a stainless steel woven filter screen, and the filtration accuracy covers 10 - 3000μm, which is applicable to scenarios such as industrial circulating water, municipal water supply, and agricultural irrigation.

[0003] When the self-cleaning filter is in use, water enters the filter through the water inlet, and the impurities in the water are filtered by the filter screen inside the filter. As the impurities accumulate on the surface of the filter screen, a differential pressure will be formed inside and outside the filter screen. When the differential pressure reaches the set threshold or reaches the cleaning cycle, the automatic cleaning program will be triggered to control the reverse flushing water flow to flush the filter screen in the reverse direction, and through the cooperation of the motor-driven rotating brush to scrape the impurities on the surface of the filter screen, realizing the self-cleaning of the filter screen. However, the differential pressure threshold and cleaning cycle of the filter cannot be adaptively adjusted according to the impurity situation in the water body. For water bodies with high impurities, if the differential pressure threshold under normal water quality is maintained, the filter will frequently trigger cleaning, which will exacerbate the wear and energy consumption of valves, filter screens, etc. If the cleaning cycle under normal water quality is maintained, it may lead to the blockage of the filter screen. Therefore, we propose a self-cleaning filter with an adjustment function. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-cleaning filter with an adjustment function to solve the problem that the differential pressure threshold and cleaning cycle of the filter cannot be adaptively adjusted according to the impurity situation in the water body as mentioned in the above background art. For water bodies with high impurities, if the differential pressure threshold under normal water quality is maintained, the filter will frequently trigger cleaning, which will exacerbate the wear and energy consumption of valves, filter screens, etc. If the cleaning cycle under normal water quality is maintained, it may lead to the blockage of the filter screen.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A self-cleaning filter with an adjustment function, comprising: a filter body, a water inlet pipe is fixedly connected to the water inlet end of the filter body, a water outlet pipe is fixedly connected to the water outlet end of the filter body, and a filter screen is arranged inside the filter body; It further includes: a cleaning component, which is arranged on the filter body and is used for cleaning the filter screen; A detection component, which is arranged on one side of the filter body and is used for detecting the differential pressure inside and outside the filter screen; A control component is arranged on one side of the detection component. The control component automatically controls the cleaning component to clean the filter screen according to the pressure difference detected by the detection component, and automatically adjusts the pressure difference trigger threshold of the detection component according to the impurity amount in the water body. A timing component is arranged on one side of the filter body. The timing component is used to record the working time of the filter body and automatically reset when the control component first triggers the cleaning component to clean the filter screen. A triggering component is arranged on one side of the timing component. The triggering component automatically controls the cleaning component to clean the filter screen according to the time recorded by the timing component, and automatically adjusts the cleaning cycle according to the impurity amount in the water body.

[0006] Among them, the cleaning component includes a flushing pipe fixedly communicated with the filter body. A sewage pipe is fixedly communicated with the lower side of the filter body. A driving motor is fixedly arranged at the upper end of the filter body, and a cleaning part is fixedly arranged at the output end of the driving motor.

[0007] Among them, the detection component includes a first connecting pipe and a second connecting pipe fixedly communicated with the filter body. The first connecting pipe is communicated with the inner side of the filter screen, and the second connecting pipe is communicated with the outer side of the filter screen. A connecting part is fixedly communicated with the upper ends of the first connecting pipe and the second connecting pipe. A moving block is slidably arranged inside the connecting part. First bellows fixedly connected with the connecting part are arranged on both sides of the moving block. Mounting shells fixedly connected with the filter body are arranged on both sides of the moving block.

[0008] Among them, guide rods are fixedly arranged on both sides of the moving block. The guide rods movably penetrate through the side ends of the connecting part and the mounting shell. Second bellows are sleeved on the outer sides of the guide rods. The two ends of the second bellows are respectively fixedly connected with the moving block and the connecting part. First pressing blocks are fixedly arranged at one ends of the two guide rods. A first spring fixedly connected with the inner side of the mounting shell is arranged on one side of the first pressing block.

[0009] Among them, the control component includes a first electromagnetic block fixedly arranged inside the mounting shell on one side. A connecting block is slidably arranged inside the mounting shell on one side. A limiting groove adapted to the connecting block is arranged inside the mounting shell on one side. The connecting block is slidably arranged along the limiting groove. A first magnetic block repelling the first electromagnetic block is fixedly arranged on one side of the connecting block. A second spring fixedly connected with the mounting shell is arranged on one side of the connecting block. A turbidity sensor is installed on one side of the filter body. A first switch is arranged on one side of the connecting block.

[0010] Among them, the timing component includes a housing fixedly arranged on one side of the filter body. A reduction motor is fixedly arranged inside the housing. A transmission rod is fixedly arranged at the output end of the reduction motor. A first gear is rotatably arranged on the upper side of the transmission rod. A support rod is fixedly arranged inside the housing. Two second gears are rotatably arranged on the upper side of the support rod. Two third gears are arranged between the first gear and the second gears. Single-tooth runners are fixedly arranged on the upper sides of the two third gears. A fourth gear is arranged on the upper side of the upper single-tooth runner. The lower third gear is meshed with the first gear. The lower second gear is meshed with the lower single-tooth runner and the upper third gear. The upper second gear is meshed with the upper single-tooth runner and the fourth gear.

[0011] Among them, a reset motor is fixedly arranged inside the housing. A connecting rod is fixedly arranged at the output end of the reset motor. The third gear, the single-tooth runner and the fourth gear are respectively rotatably arranged with the connecting rod. Fixed blocks are respectively arranged inside the first gear, the single-tooth runner and the fourth gear. Stoppers are rotatably arranged on both sides of the fixed block. A third spring fixedly connected to the fixed block is fixedly arranged inside the stopper. First card slots are arranged inside the single-tooth runner and the fourth gear. A second card slot is arranged inside the first gear. The fixed blocks inside the single-tooth runner and the fourth gear are fixedly arranged with the connecting rod. The fixed block inside the first gear is fixedly arranged with the transmission rod.

[0012] Among them, a second pressing block is fixedly arranged on the upper side of the fourth gear. An installation part is fixedly arranged inside the housing. A second switch is arranged on the lower side of the installation part. Third pressing blocks are fixedly arranged on the upper sides of the two single-tooth runners. A connecting part fixedly arranged with the installation part is arranged on one side of the third pressing block. A third switch is arranged on one side of the connecting part.

[0013] Among them, the triggering component includes a rotating part slidably arranged with the installation part. A through groove is penetrated and opened on the installation part. The rotating part is slidably arranged along the through groove. A fourth switch is arranged on the lower side of the rotating part. A fifth gear rotatably arranged with the installation part is fixedly arranged on one side of the rotating part.

[0014] Among them, a rack is meshed and connected to one side of the fifth gear. An installation block slidably arranged with the installation part is fixedly arranged on one side of the rack. A guiding groove adapted to the installation block is arranged on the upper side of the installation part. The installation block is slidably arranged along the guiding groove. A second electromagnetic block fixedly arranged with the installation part is arranged on one side of the installation block. A second magnetic block repelling the second electromagnetic block is fixedly arranged on one side of the installation block. A fourth spring fixedly arranged with the installation part is fixedly arranged on the other side of the installation block.

[0015] The present invention has at least the following beneficial effects: Through the cleaning component, the impurities or dirt attached to the inner surface of the filter screen can be cleaned to ensure the filtering use of the filter screen. Through the detection component, the pressure difference between the two sides of the filter screen can be detected. When the pressure difference detected by the detection component reaches the set threshold, the regulation component will be automatically triggered to control the cleaning component to clean the filter screen. At the same time, through the regulation component, the pressure difference threshold of the detection component can be automatically adjusted according to the amount of impurities in the water body. When there are more impurities in the water body, the pressure difference trigger threshold can be adaptively increased. For high-impurity water bodies, the filter screen is allowed to accumulate more impurities before cleaning, which can avoid frequent triggering of the cleaning component to clean the filter screen, reduce the loss of valves, filter screens, etc. and the energy consumption of the filter body, and improve the economy of the filter body. Through the timing component, the working time of the filter body can be recorded, and when the set time is reached, the cleaning component can also be automatically triggered to clean the filter screen through the trigger component. When the set cleaning cycle is reached, if the pressure difference between the two sides of the filter screen does not reach the threshold, the cleaning of the filter screen will also be automatically controlled to prevent the blockage of the filter screen. If the pressure difference between the two sides of the filter screen reaches the threshold first and the cleaning of the filter screen is controlled by the pressure difference, the timing component will be controlled to automatically reset for subsequent re-timing work. And through the trigger component, the cleaning cycle can be adjusted according to the impurity situation of the water body. When there are more impurities in the water body, the cleaning cycle of the timing component can be adaptively shortened. Through the setting and adjustment of the cleaning cycle, the cleaning of the filter screen is forcibly guaranteed, the blockage of the filter screen is prevented, and a double guarantee is formed with the pressure difference control to achieve the balance between the economy and safety of the filter body and improve the applicability of the filter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a partial cross-sectional structural schematic diagram of the filter body of the present invention; Figure 3 is a partial cross-sectional connection structural schematic diagram of the detection component and the filter body of the present invention; Figure 4 is a cross-sectional structural schematic diagram of the connecting member, the mounting shell, the first corrugated pipe and the second corrugated pipe of the present invention; Figure 5 is a cross-sectional internal structural schematic diagram of the mounting shell of the present invention; Figure 6 is a cross-sectional structural schematic diagram of the housing of the present invention; Figure 7 is a structural schematic diagram of the timing component of the present invention; Figure 8 is an exploded structural schematic diagram of the connecting rod, the third gear, the single-tooth runner and the fourth gear of the present invention; Figure 9 For the present invention Figure 8 is an enlarged structural schematic diagram at position A in Figure 10 This is a schematic structural diagram of the third pressing block and the connecting piece of the present invention; Figure 11 This is a schematic structural diagram of the connection of the mounting member of the present invention; Figure 12 This is a schematic structural diagram of the trigger assembly of the present invention.

[0017] In the figure: 11, filter body; 12, water inlet pipe; 13, water outlet pipe; 14, filter screen; 2, cleaning assembly; 21, flushing pipe; 22, sewage pipe; 23, cleaning member; 24, drive motor; 3, detection assembly; 31, first connecting pipe; 32, second connecting pipe; 33, connecting member; 34, moving block; 35, mounting shell; 36, guide rod; 37, first corrugated pipe; 38, second corrugated pipe; 39, first pressing block; 310, first spring; 4, regulation assembly; 41, first electromagnetic block; 42, connecting block; 43, first magnetic block; 44, first switch; 45, second spring; 46, limiting groove; 47, turbidity sensor; 5, timing assembly; 51, housing; 52, reduction motor; 53, transmission rod; 54, first gear; 55, support rod; 56, second gear; 57, third gear; 58, single-tooth runner; 59, fourth gear; 510, connecting rod; 511, reset motor; 512, stop block; 513, third spring; 514, first card slot; 515, second card slot; 516, second pressing block; 517, second switch; 518, mounting member; 519, third pressing block; 520, connecting piece; 521, third switch; 522, fixing block; 6, trigger assembly; 61, rotating member; 62, through slot; 63, fourth switch; 64, fifth gear; 65, rack; 66, mounting block; 67, guiding groove; 68, second magnetic block; 69, second electromagnetic block; 610, fourth spring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1 Please refer to Figures 1 to 12 , the present invention provides a technical solution: a self-cleaning filter with an adjustment function, including: a filter body 11, the water inlet end of the filter body 11 is fixedly communicated with a water inlet pipe 12, the water outlet end of the filter body 11 is fixedly communicated with a water outlet pipe 13, and a filter screen 14 is arranged inside the filter body 11; It further includes: a cleaning component 2, which is arranged on the filter body 11 and is used for cleaning the filter screen 14; a detection component 3, which is arranged on one side of the filter body 11 and is used for detecting the pressure difference between the inner and outer sides of the filter screen 14; a regulation component 4, which is arranged on one side of the detection component 3. The regulation component 4 automatically controls the cleaning component 2 to clean the filter screen 14 according to the pressure difference detected by the detection component 3, and automatically adjusts the pressure difference trigger threshold of the detection component 3 according to the impurity content in the water body; a timing component 5, which is arranged on one side of the filter body 11 and is used for recording the working time of the filter body 11 and automatically resetting when the regulation component 4 triggers the cleaning component 2 to clean the filter screen 14 first; a trigger component 6, which is arranged on one side of the timing component 5. The trigger component 6 automatically controls the cleaning component 2 to clean the filter screen 14 according to the time recorded by the timing component 5, and automatically adjusts the cleaning cycle according to the impurity content in the water body.

[0020] When the self-cleaning filter body 11 is in use, water enters the filter body 11 through the water inlet of the filter body 11 via the water inlet pipe 12. The impurities in the water are filtered by the filter screen 14. The filtered water flows out through the water outlet pipe 13 via the water outlet of the filter body 11. Through the cleaning component 2, the impurities or dirt attached to the inner surface of the filter screen 14 can be cleaned to ensure the filtering function of the filter screen 14. Through the detection component 3, the pressure difference between the two sides of the filter screen 14 can be detected. When the pressure difference detected by the detection component 3 reaches the set threshold, it will automatically trigger the control component 4 to control the cleaning component 2 to clean the filter screen 14. At the same time, through the control component 4, the pressure difference threshold of the detection component 3 can be automatically adjusted according to the amount of impurities in the water. When there are more impurities in the water, the pressure difference trigger threshold can be adaptively increased. For high-impurity water, it allows the filter screen 14 to accumulate more impurities before cleaning, which can avoid frequent triggering of the cleaning component 2 to clean the filter screen 14, reduce the loss of valves, filter screen 14, etc. and the energy consumption of the filter body 11, and improve the economic efficiency of the filter body 11. Through the timing component 5, the working time of the filter body 11 can be recorded, and when the set time is reached, the cleaning component 2 can also be automatically triggered to clean the filter screen 14 through the trigger component 6. When the set cleaning cycle is reached, if the pressure difference between the two sides of the filter screen 14 does not reach the threshold, the cleaning of the filter screen 14 will also be automatically controlled to prevent the blockage of the filter screen 14. If the pressure difference between the two sides of the filter screen 14 reaches the threshold first and the cleaning of the filter screen 14 is controlled by the pressure difference, the timing component 5 will be automatically reset for subsequent re-timing work. And through the trigger component 6, the cleaning cycle can be adjusted according to the water impurity situation. When there are more impurities in the water, the cleaning cycle of the timing component 5 can be adaptively shortened. By setting and adjusting the cleaning cycle, the cleaning of the filter screen 14 is forcibly guaranteed, the blockage of the filter screen 14 is prevented, and a double guarantee is formed with the pressure difference control, achieving the balance between the economic efficiency and safety of the filter body 11 and improving the applicability of the filter body 11.

[0021] The cleaning component 2 includes a flushing pipe 21 fixedly communicated with the filter body 11. A sewage discharge pipe 22 is fixedly communicated with the lower side of the filter body 11. A driving motor 24 is fixedly installed at the upper end of the filter body 11. A cleaning member 23 is fixedly installed at the output end of the driving motor 24. The cleaning member 23 is located inside the filter screen 14. Electromagnetic control valves are respectively installed on the flushing pipe 21, the sewage discharge pipe 22, the water inlet pipe 12 and the water outlet pipe 13. When filtering water, the electromagnetic control valves on the flushing pipe 21 and the sewage discharge pipe 22 are in the closed state; When triggering the cleaning component 2 to clean the filter screen 14, the electromagnetic control valve on the flushing water pipe 21 will be controlled to open, and the backwashing water will be conveyed to the outside of the filter screen 14 through the flushing water pipe 21 to perform reverse flushing on the filter screen 14. The driving motor 24 will be controlled to drive the cleaning part 23 to rotate to scrape and clean the impurities or dirt accumulated on the inner side of the filter screen 14. By controlling the opening of the electromagnetic control valve on the sewage discharge pipe 22, the cleaned sewage will be discharged through the sewage discharge pipe 22.

[0022] The detection component 3 includes a first connecting pipe 31 and a second connecting pipe 32 fixedly communicated with the filter body 11. The first connecting pipe 31 is communicated with the inner side of the filter screen 14, and the second connecting pipe 32 is communicated with the outer side of the filter screen 14. A connecting part 33 is fixedly communicated with the upper ends of the first connecting pipe 31 and the second connecting pipe 32. The positions where the first connecting pipe 31, the second connecting pipe 32 are communicated with the connecting part 33 are respectively located at both ends of the connecting part 33. A moving block 34 is slidably arranged inside the connecting part 33. First bellows 37 fixedly arranged with the connecting part 33 are respectively arranged on both sides of the moving block 34. When the moving block 34 moves, the first bellows 37 on both sides expand and contract. The setting of the first bellows 37 on both sides can prevent the water bodies on both sides of the moving block 34 from leaking to the other side from the sliding connection between the moving block 34 and the connecting part 33. Installation shells 35 fixedly arranged with the filter body 11 are respectively arranged on both sides of the moving block 34.

[0023] Guide rods 36 are respectively fixedly arranged on both sides of the moving block 34. The guide rods 36 movably penetrate through the side ends of the connecting part 33 and the installation shell 35. A second bellows 38 is sleeved outside the guide rods 36. The two ends of the second bellows 38 are respectively fixedly arranged with the moving block 34 and the connecting part 33. When the moving block 34 moves, the second bellows 38 expands and contracts, which can prevent the water body from leaking out through the penetration of the guide rods 36 and the connecting part 33. First pressing blocks 39 are respectively fixedly arranged at one ends of the two guide rods 36. A first spring 310 fixedly arranged with the inner side of the installation shell 35 is arranged on one side of the first pressing block 39. The two sides of the first pressing block 39 are arranged as arc-shaped end faces to facilitate the pressing on the first switch 44.

[0024] During the use of the filter body 11, as the filter screen 14 filters the impurities in the water, the pressure difference between the inner and outer sides of the filter screen 14 will gradually increase. Through the connection between the first connecting pipe 31 and the inner side of the filter screen 14 and one side of the connecting part 33, and the connection between the second connecting pipe 32 and the outer side of the filter screen 14 and the other side of the connecting part 33, the moving block 34 will gradually move closer to the second connecting pipe 32, and the first springs 310 on both sides will undergo elastic changes.

[0025] The control component 4 includes a first electromagnetic block 41 fixedly arranged inside one side mounting shell 35. This side mounting shell 35 is the mounting shell 35 close to the second connecting pipe 32. A connecting block 42 is slidably arranged inside one side mounting shell 35. A limiting groove 46 adapted to the connecting block 42 is arranged inside one side mounting shell 35. The connecting block 42 is slidably arranged along the limiting groove 46. A first magnetic block 43 that repels the first electromagnetic block 41 is fixedly arranged on one side of the connecting block 42. A second spring 45 fixedly arranged with the mounting shell 35 is fixedly arranged on one side of the connecting block 42. A turbidity sensor 47 is mounted on one side of the filter body 11. The turbidity sensor 47 is electrically connected to the first electromagnetic block 41. The turbidity sensor 47 is located on the side close to the water inlet pipe 12. A first switch 44 is arranged on one side of the connecting block 42.

[0026] During the use of the filter body 11, as impurities in the water accumulate on the inner surface of the filter screen 14, the movement of the moving block 34 gradually approaching the second connecting pipe 32 will drive the guide rod 36 and the first pressing block 39 to move closer to the connecting block 42. When the first pressing block 39 moves to press against the first switch 44, it means that the pressure difference between the inner and outer sides of the filter screen 14 reaches the set threshold value, and then the cleaning component 2 will be controlled to clean the filter screen 14; the turbidity sensor 47 can detect the impurity situation of the water body. When there are more impurities in the water body, more impurities in the water detected by the turbidity sensor 47 will make the current in the connecting circuit smaller, making the repulsive force of the first electromagnetic block 41 on the first magnetic block 43 smaller, making the distance that the connecting block 42 moves closer to the first pressing block 39 smaller, compressing the second spring 45, making the distance between the first switch 44 and the first pressing block 39 relatively large initially. Thus, the first pressing block 39 can move a relatively large distance closer to the connecting block 42 before pressing against the first switch 44, making the pressure difference between the inner and outer sides of the filter screen 14 reach a relatively large pressure difference threshold value, and then triggering the cleaning component 2 to clean the filter screen 14. Therefore, for high-impurity water bodies, the filter screen 14 can be allowed to accumulate relatively more impurities before triggering automatic cleaning, avoiding frequent triggering of the cleaning of the filter screen 14, which exacerbates the wear of valves, the filter screen 14, etc. and the energy consumption of the filter body 11, and improving the economic efficiency of the use of the filter body 11.

[0027] Embodiment 2 The timing component 5 includes a housing 51 fixedly arranged on one side of the filter body 11. Inside the housing 51, a reduction motor 52 is fixedly arranged. The output end of the reduction motor 52 is fixedly provided with a transmission rod 53. A first gear 54 is rotatably arranged on the upper side of the transmission rod 53. Inside the housing 51, a support rod 55 is fixedly arranged. Two second gears 56 are rotatably arranged on the upper side of the support rod 55. Two third gears 57 are arranged between the first gear 54 and the second gears 56. A single-tooth runner 58 is fixedly arranged on the upper side of each of the two third gears 57. A fourth gear 59 is arranged on the upper side of the upper single-tooth runner 58. The lower third gear 57 is meshed with the first gear 54. The lower second gear 56 is meshed with the lower single-tooth runner 58 and the upper third gear 57. The upper second gear 56 is meshed with the upper single-tooth runner 58 and the fourth gear 59.

[0028] Inside the housing 51, a reset motor 511 is fixedly arranged. The output end of the reset motor 511 is fixedly provided with a connecting rod 510. The third gear 57, the single-tooth runner 58 and the fourth gear 59 are respectively rotatably arranged with the connecting rod 510. Fixing blocks 522 are respectively arranged inside the first gear 54, the single-tooth runner 58 and the fourth gear 59. Block 512 is rotatably arranged on both sides of the fixing block 522. Inside the block 512, a third spring 513 fixedly arranged with the fixing block 522 is provided. A first card slot 514 is arranged inside the single-tooth runner 58 and the fourth gear 59. A second card slot 515 is arranged inside the first gear 54. The fixing blocks 522 inside the single-tooth runner 58 and the fourth gear 59 are fixedly arranged with the connecting rod 510. The fixing block 522 inside the first gear 54 is fixedly arranged with the transmission rod 53.

[0029] During the use of the filter body 11, the output end of the reduction motor 52 drives the transmission rod 53 and the fixing block 522 inside the first gear 54 to rotate. Through the pressing action of the block 512 inside the first gear 54 on the second card slot 515, the first gear 54 can be driven to rotate, and then the lower third gear 57 is driven to rotate, so that the lower single-tooth runner 58 rotates. Every time the single-tooth runner 58 rotates one circle, it will drive the lower second gear 56 to rotate once. The rotation of the lower second gear 56 can drive the rotation of the upper third gear 57, so that the upper single-tooth runner 58 rotates. Every time the upper single-tooth runner 58 rotates one circle, it will drive the upper second gear 56 to rotate once. The rotation of the upper second gear 56 will drive the rotation of the fourth gear 59. During this process, when the two single-tooth runners 58 and the fourth gear 59 rotate, under the blocking action of the first card slot 514 inside the single-tooth runner 58 and the fourth gear 59 on the block 512, the block 512 will rotate close to the fixing block 522, and the third spring 513 will be compressed, which can prevent the block 512 from hindering the rotation of the single-tooth runner 58 and the fourth gear 59 during the timing process; the number of the third gears 57 and the single-tooth runners 58 can be increased according to actual needs, and the number of the second gears 56 can be increased synchronously.

[0030] A second pressing block 516 is fixedly arranged on the upper side of the fourth gear 59. The upper side of the second pressing block 516 is provided with an arc-shaped end face to facilitate the pressing against the second switch 517 or the fourth switch 63. An installation member 518 is fixedly arranged inside the housing 51. A second switch 517 is arranged on the lower side of the installation member 518. Third pressing blocks 519 are fixedly arranged on the upper sides of both single-tooth runners 58. One side of the third pressing block 519 is provided with an arc-shaped end face to facilitate the pressing against the third switch 521. A connecting member 520 fixedly arranged with the installation member 518 is arranged on one side of the third pressing block 519. A third switch 521 is arranged on one side of the connecting member 520.

[0031] When the pressure difference between the inner and outer sides of the filter screen 14 first reaches the threshold value and the cleaning of the filter screen 14 is controlled by the pressure difference, the first switch 44 is pressed. At the same time, the reset motor 511 can be controlled to work, and the reduction motor 52 stops working. The output end of the reset motor 511 drives the connecting rod 510 to rotate, thereby driving the two single-tooth runners 58 and the fixing block 522 inside the fourth gear 59 to rotate. Through the pressing action of the single-tooth runner 58 and the stopper 512 inside the fourth gear 59 on the first card slot 514, the single-tooth runner 58 and the fourth gear 59 can be driven to rotate during reset. During this process, through the blocking action of the second card slot 515 inside the first gear 54 on the stopper 512, the stopper 512 inside the first gear 54 can be made to rotate close to the fixing block 522 so as not to hinder the rotation of the first gear 54 during reset. As the two single-tooth runners 58 and the fourth gear 59 rotate, when the second pressing block 516 presses against the second switch 517 and the two third pressing blocks 519 respectively press against the two third switches 521, it indicates that the timing component 5 has completed the reset, and the reset motor 511 will be controlled to stop working.

[0032] The triggering component 6 includes a rotating member 61 slidably arranged with the installation member 518. A through groove 62 is formed through the installation member 518. The rotating member 61 is slidably arranged along the through groove 62. A fourth switch 63 is arranged on the lower side of the rotating member 61. A fifth gear 64 rotatably arranged with the installation member 518 is fixedly arranged on one side of the rotating member 61. The center position of the through groove 62 and the center position of the fifth gear 64 are on the same vertical axis.

[0033] During the process of the timing component 5 recording the working time of the filter body 11, when the reduction motor 52 drives the first gear 54 to rotate, and then drives the fourth gear 59 to rotate, the rotation of the fourth gear 59 will drive the second pressing block 516 to gradually rotate close to the fourth switch 63. When the second pressing block 516 rotates to press against the fourth switch 63, it indicates that the set cleaning cycle has been reached. At this time, if the pressure difference between the inner and outer sides of the filter screen 14 has not reached the threshold value, the cleaning component 2 will also be automatically controlled to clean the filter screen 14 to prevent the filter screen 14 from being blocked.

[0034] On one side of the fifth gear 64, a rack 65 is meshed and connected. On one side of the rack 65, a mounting block 66 which is slidably arranged with the mounting member 518 is fixedly provided. On the upper side of the mounting member 518, a guiding groove 67 adapted to the mounting block 66 is provided. The mounting block 66 is slidably arranged along the guiding groove 67. On one side of the mounting block 66, a second electromagnetic block 69 fixedly arranged with the mounting member 518 is provided. The second electromagnetic block 69 is electrically connected to the turbidity sensor 47. On one side of the mounting block 66, a second magnetic block 68 which repels the second electromagnetic block 69 is fixedly provided. On the other side of the mounting block 66, a fourth spring 610 fixedly arranged with the mounting member 518 is provided.

[0035] For high-impurity water bodies, the turbidity sensor 47 detects more impurities in the water, resulting in a smaller current in the connected circuit, a smaller repulsive force of the second electromagnetic block 69 on the second magnetic block 68, a smaller moving distance of the mounting block 66 away from the second electromagnetic block 69, compression of the fourth spring 610, a smaller moving distance of the rack 65, and a smaller rotation angle of the fifth gear 64. Furthermore, the amplitude of the rotation of the rotating member 61 and the fourth switch 63 away from the second pressing block 516 will be relatively smaller, such that the second pressing block 516 only needs to rotate a relatively small angle to press against the fourth switch 63. Thus, in a relatively short time, the cleaning assembly 2 can be triggered to clean the filter screen 14. Therefore, for high-impurity water bodies, the cleaning cycle can be shortened compared to conventional impurity water bodies, to forcibly ensure the cleaning of the filter screen 14, prevent the blockage of the filter screen 14, and form a dual guarantee with the differential pressure control, achieving the balance between the economy and safety of the use of the filter body 11 and improving the applicability of the filter body 11.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made therein without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning filter with an adjustment function, comprising: Filter body, the water inlet end of the filter body is fixedly communicated with a water inlet pipe, the water outlet end of the filter body is fixedly communicated with a water outlet pipe, and a filter screen is arranged inside the filter body; It is characterized in that: it further includes: a cleaning component, the cleaning component is arranged on the filter body, and the cleaning component is used for cleaning the filter screen; A detection component, the detection component is arranged on one side of the filter body, and the detection component is used for detecting the pressure difference between the inner and outer sides of the filter screen; A control component, the control component is arranged on one side of the detection component, and the control component automatically controls the cleaning component to clean the filter screen according to the pressure difference detected by the detection component, and automatically adjusts the pressure difference trigger threshold of the detection component according to the impurity content in the water body; A timing component, the timing component is arranged on one side of the filter body, and the timing component is used for recording the working time of the filter body and automatically resetting when the control component first triggers the cleaning component to clean the filter screen; A triggering component, the triggering component is arranged on one side of the timing component, and the triggering component automatically controls the cleaning component to clean the filter screen according to the time recorded by the timing component, and automatically adjusts the cleaning cycle according to the impurity content in the water body.

2. The self-cleaning filter with an adjustment function according to claim 1, wherein: The cleaning component includes a flushing pipe fixedly communicated with the filter body, a sewage pipe is fixedly communicated with the lower side of the filter body, a driving motor is fixedly arranged at the upper end of the filter body, and a cleaning part is fixedly arranged at the output end of the driving motor.

3. The self-cleaning filter with an adjustment function according to claim 1, characterized in that: The detection component includes a first connecting pipe and a second connecting pipe fixedly communicated with the filter body, the first connecting pipe is communicated with the inner side of the filter screen, the second connecting pipe is communicated with the outer side of the filter screen, a connecting part is fixedly communicated with the upper ends of the first connecting pipe and the second connecting pipe, a moving block is slidably arranged inside the connecting part, first bellows fixedly arranged with the connecting part are arranged on both sides of the moving block, and mounting shells fixedly arranged with the filter body are arranged on both sides of the moving block.

4. The self-cleaning filter with an adjustment function according to claim 3, characterized in that: Guide rods are fixedly arranged on both sides of the moving block, the guide rods movably penetrate through the side ends of the connecting part and the mounting shell, a second bellows is sleeved on the outer side of the guide rods, both ends of the second bellows are fixedly arranged with the moving block and the connecting part respectively, first pressing blocks are fixedly arranged at one ends of the two guide rods, and first springs fixedly arranged with the inner side of the mounting shell are arranged on one side of the first pressing blocks.

5. The self-cleaning filter with an adjustment function according to claim 3, characterized in that: The control component includes a first electromagnetic block fixedly arranged inside the mounting shell on one side, a connecting block is slidably arranged inside the mounting shell on one side, a limiting groove adapted to the connecting block is arranged inside the mounting shell on one side, the connecting block slides along the limiting groove, a first magnetic block repelling the first electromagnetic block is fixedly arranged on one side of the connecting block, a second spring fixedly arranged with the mounting shell is arranged on one side of the connecting block, a turbidity sensor is installed on one side of the filter body, and a first switch is arranged on one side of the connecting block.

6. The self-cleaning filter with an adjustment function according to claim 1, characterized in that: The timing component includes a housing fixedly arranged on one side of the filter body. A reduction motor is fixedly arranged inside the housing. A transmission rod is fixedly arranged at the output end of the reduction motor. A first gear is rotatably arranged on the upper side of the transmission rod. A support rod is fixedly arranged inside the housing. Two second gears are rotatably arranged on the upper side of the support rod. Two third gears are arranged between the first gear and the second gears. Single-tooth runners are fixedly arranged on the upper sides of the two third gears. A fourth gear is arranged above the upper single-tooth runner. The lower third gear is meshed with the first gear. The lower second gear is meshed with the lower single-tooth runner and the upper third gear. The upper second gear is meshed with the upper single-tooth runner and the fourth gear.

7. The self-cleaning filter with an adjustment function according to claim 6, characterized in that: A reset motor is fixedly arranged inside the housing. A connecting rod is fixedly arranged at the output end of the reset motor. The third gear, the single-tooth runner and the fourth gear are respectively rotatably arranged with the connecting rod. Fixed blocks are respectively arranged inside the first gear, the single-tooth runner and the fourth gear. Blocks are rotatably arranged on both sides of the fixed block. A third spring fixedly arranged with the fixed block is fixedly arranged inside the block. First card slots are arranged inside the single-tooth runner and the fourth gear. A second card slot is arranged inside the first gear. The fixed blocks inside the single-tooth runner and the fourth gear are fixedly arranged with the connecting rod. The fixed block inside the first gear is fixedly arranged with the transmission rod.

8. The self-cleaning filter with an adjustment function according to claim 6, wherein: A second pressing block is fixedly arranged above the fourth gear. A mounting member is fixedly arranged inside the housing. A second switch is arranged below the mounting member. Third pressing blocks are fixedly arranged on the upper sides of the two single-tooth runners. A connecting member fixedly arranged with the mounting member is arranged on one side of the third pressing block. A third switch is arranged on one side of the connecting member.

9. The self-cleaning filter with an adjustment function according to claim 8, characterized in that: The triggering component includes a rotating member slidably arranged with the mounting member. A through groove is penetrated and opened on the mounting member. The rotating member slides along the through groove. A fourth switch is arranged below the rotating member. A fifth gear rotatably arranged with the mounting member is fixedly arranged on one side of the rotating member.

10. The self-cleaning filter with an adjustment function according to claim 9, characterized in that: A rack is meshed and connected to one side of the fifth gear. A mounting block slidably arranged with the mounting member is fixedly arranged on one side of the rack. A guiding groove adapted to the mounting block is arranged above the mounting member. The mounting block slides along the guiding groove. A second electromagnetic block fixedly arranged with the mounting member is arranged on one side of the mounting block. A second magnetic block repelling the second electromagnetic block is fixedly arranged on one side of the mounting block. A fourth spring fixedly arranged with the mounting member is fixedly arranged on the other side of the mounting block.

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