Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an intelligent water service negative-pressure-free water supply system.
In order to achieve the above purpose, the invention adopts the following technical scheme: the intelligent water service non-negative pressure water supply system comprises a water service non-negative pressure water supply device, wherein an installation pipe is fixedly connected to the end part of a water inlet pipe in the water service non-negative pressure water supply device, a water supply pipe is fixedly communicated with the top of the left end of the installation pipe, a first ball valve is rotationally connected inside the installation pipe and close to the end part of the water inlet pipe, a first through groove is formed in the first ball valve, the first through groove is communicated with the installation pipe, and a first filter screen plate is connected inside the first through groove;
the installation pipe is far away from one end of the water inlet pipe and is rotationally connected with a second ball valve, a second through groove is transversely formed in the second ball valve and is communicated with the installation pipe, a water inlet groove which inclines leftwards is formed in the top end of the second ball valve and is communicated with the water supply pipe, the water inlet groove is communicated with the second through groove and divides the second through groove into a left through cavity and a right through cavity, a drainage groove is formed in the bottom of the installation pipe and corresponds to the position of the water inlet groove, and a second filter screen plate is connected to the inner wall of the left through cavity;
the outer side of the mounting pipe is provided with a driving mechanism for simultaneously driving the first ball valve to rotate anticlockwise and the second ball valve to rotate clockwise;
the installation pipe surface is in fixedly connected with stores the shell on the first ball valve position, first wash port and second wash port have been seted up on the installation pipe surface is to first ball valve top and bottom position respectively, store offer on the shell inner wall with the jet orifice of first wash port intercommunication, first ball valve bottom, installation pipe and have seted up the inlet port jointly on storing the shell inner wall, be provided with in the storage shell and be used for with store the interior water of shell from jet orifice exhaust drainage mechanism.
Preferably, the first chute is transversely symmetrically arranged on the inner wall of the first through groove, the first sliding rods are fixedly connected in the two first chute, and the first filter screen plates are connected to the common sliding rods on the surfaces of the two first sliding rods.
Preferably, the inner wall of the left through cavity of the second through groove is symmetrically provided with second sliding grooves, second sliding rods are fixedly connected in the two second sliding grooves, and the surfaces of the two second sliding rods are connected with second filter screen plates through common sliding rods.
Preferably, the driving mechanism comprises two installation shells, two first rotating rods and two second rotating rods, wherein the installation shells are symmetrically and fixedly connected to two sides of an installation tube, one ends of the two first rotating rods are symmetrically and fixedly connected to the outer side wall of a first ball valve, the other ends of the first rotating rods are rotationally connected to the outer side wall of the installation shell, one ends of the two second rotating rods are symmetrically and fixedly connected to the outer side wall of the second ball valve, the other ends of the second rotating rods penetrate through the installation tube and extend to the side wall of the installation shell, the second rotating rods are respectively rotationally connected with the installation tube and the installation shell, a first gear is fixedly connected to the surface of the first rotating rod, a second gear is meshed with the side surface of the first gear, the surface of the second gear shaft is rotationally connected to the side wall of the installation shell, a driving belt is jointly and drivingly connected to the surface of the second rotating rod, the outer side wall of the installation shell is fixedly connected with a motor, the end part of the motor penetrates through the side wall of the installation shell and is rotationally connected to the side wall of the installation shell, and the output shaft of the motor is rotationally connected to the side wall of the installation shell, and the first rotating rod is fixedly connected to the first rotating rod.
The surface of the first filter screen plate is fixedly connected with a first pressure sensor, the side wall of the first pressure sensor is fixedly connected with a first spring, the first spring is sleeved on the surface of the first sliding rod, and one end, away from the first pressure sensor, of the first spring is fixedly connected to the side wall of the first sliding groove;
the second filter screen plate is fixedly connected with a second pressure sensor, the side wall of the second pressure sensor is fixedly connected with a second spring, the second spring is sleeved on the surface of a second sliding rod, and the second spring is far away from the two ends of the second pressure sensor and is fixedly connected with the side wall of the second sliding groove.
Preferably, the drainage mechanism comprises a piston, the piston sliding connection is in the storage shell, the piston lateral wall is provided with the elastic connection piece jointly with the storage shell inner wall, piston lateral wall symmetry fixedly connected with catch bar, the catch bar is kept away from the one end fixedly connected with linkage piece of piston, first pole fixedly connected with linkage board, vertical groove has vertically been seted up on linkage board surface, sliding connection has the connecting axle in the vertical groove, the one end that the linkage board was kept away from to the connecting axle rotates and is connected with the catch bar, the longitudinal sliding connection of catch bar is on installation shell top end wall, the guide inclined plane has been seted up on the linkage piece top, the guide inclined plane has been seted up to the catch bar bottom, the air vent has been seted up on the right side of storage shell.
Preferably, the drainage tank is internally fixedly communicated with a U-shaped conduit, the other end of the U-shaped conduit is fixedly communicated with the inner cavity of the mounting pipe, a first connecting pipe is fixedly communicated with the bottom end of the mounting pipe close to the position of the first ball valve, and an electromagnetic valve is arranged on the surface of the first connecting pipe.
Preferably, the left end of the mounting pipe is fixedly communicated with a first L-shaped conduit, and a valve is arranged on the surface of the first L-shaped conduit.
Preferably, a second connecting pipe is fixedly communicated in the second drain hole, and a second L-shaped conduit is fixedly communicated with the end part of the second connecting pipe and the end part of the first connecting pipe together.
Preferably, the elastic connecting piece comprises a plurality of compression springs, and two ends of each compression spring are fixedly connected in the piston and the storage shell respectively.
Preferably, the top end of the installation shell is fixedly connected with a connecting rod, and the bottom end of the connecting rod penetrates through the pushing block and then is in sliding connection with the pushing block.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the water service non-negative pressure water supply system, the first ball valve, the first filter screen plate, the second ball valve and the second filter screen plate are arranged, when the first filter screen plate is blocked or the impurity content of a water source is increased, so that the first ball valve rotates anticlockwise and the second ball valve rotates clockwise when the first filter screen plate cannot filter the water source in time, the mounting pipe is sealed, an unclean water source with peculiar smell is prevented from entering the water service non-negative pressure water supply device, the first filter screen plate is flushed under the action of the drainage mechanism, the filter surface of the first filter screen plate faces downwards, impurities on the first filter screen plate can be drained along the second drainage hole, the first filter screen plate is automatically cleaned, the filter capacity of the first filter screen plate is maintained, and the water quality of residents is improved.
2. According to the water service non-negative pressure water supply system, the first spring and the second spring are arranged, so that the first filter screen plate and the second filter screen plate vibrate and can be agitated with water, and the cleaning capacity of the first filter screen plate and the second filter screen plate is improved.
3. According to the water service non-negative pressure water supply system, the U-shaped guide pipe and the electromagnetic valve are arranged, when the first ball valve rotates anticlockwise and the second ball valve rotates clockwise, the electromagnetic valve is opened, when the second filter screen plate filters a water source, water can be discharged into the U-shaped guide pipe through the drainage groove, the water enters the inner cavity of the mounting pipe through the drainage of the U-shaped guide pipe, residual impurities in the inner cavity of the mounting pipe are washed, the washed impurities are discharged through the first connecting pipe, the impurities in the inner cavity of the mounting pipe are reduced, when the first filter screen plate is washed, the first ball valve and the second ball valve are reset, the electromagnetic valve is closed, and before clean water source flows into the first ball valve, the residual water source in the mounting pipe flows into the first ball valve first, and is sucked into the storage shell under the action of the drainage mechanism, and the storage shell is filled.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The intelligent water service non-negative pressure water supply system comprises a water service non-negative pressure water supply device 1, wherein the end part of a water inlet pipe 2 in the water service non-negative pressure water supply device 1 is fixedly connected with a mounting pipe 3, the top of the left end of the mounting pipe 3 is fixedly communicated with a water supply pipe 4, a first ball valve 5 is rotationally connected inside the mounting pipe 3 near the end part of the water inlet pipe 2, a first through groove 6 is formed in the first ball valve 5, the first through groove 6 is communicated with the mounting pipe 3, and a first filter screen plate 7 is connected inside the first through groove 6; the installation tube 3 is rotatably connected with a second ball valve 8 at one end far away from the water inlet tube 2, a second through groove 9 is transversely formed in the second ball valve 8, the second through groove 9 is communicated with the installation tube 3, a water inlet groove 901 inclining leftwards is formed in the top end of the second ball valve 8, the water inlet groove 901 is communicated with the water supply tube 4, the water inlet groove 901 is communicated with the second through groove 9 and divides the second through groove 9 into a left through cavity and a right through cavity, a drainage groove 10 is formed in the bottom of the installation tube 3 at a position corresponding to the water inlet groove 901, and a second filter screen plate 11 is connected to the inner wall of the left through cavity; the outer side of the installation tube 3 is provided with a driving mechanism for simultaneously driving the first ball valve 5 to rotate anticlockwise and the second ball valve 8 to rotate clockwise; the surface of the installation tube 3 is fixedly connected with a storage shell 12 at the position of the first ball valve 5, a first water discharge hole 13 and a second water discharge hole 14 are respectively formed in the top end and the bottom end of the first ball valve 5 on the surface of the installation tube 3, an injection hole 15 communicated with the first water discharge hole 13 is formed in the inner wall of the storage shell 12, a water inlet hole 16 is formed in the bottom of the first ball valve 5, the installation tube 3 and the inner wall of the storage shell 12 together, and a water discharge mechanism for discharging water in the storage shell 12 from the injection hole 15 is arranged in the storage shell 12;
when the filter is used for a long time, a great amount of impurities, such as algae and other impurities, are easily oxidized to generate peculiar smell, and when the water source passes through the filter, the water source can carry peculiar smell to cause inconvenient water consumption of residents, the technical scheme can solve the problems, and the water source is connected with the mounting pipe 3 through the water supply pipe 4 to enable the water source to enter the inner cavity of the mounting pipe 3, the water source firstly enters the second through groove 9 through the water inlet groove 901 in the second ball valve 8, and the water source enters the inner cavity of the mounting pipe 3 through the drainage of the second through groove 9, then enters the first through groove 6 in the first ball valve 5 from the inner cavity of the mounting pipe 3, is filtered by the first filter screen plate 7, then water source enters the water inlet pipe 2, water is supplied to the water service non-negative pressure water supply device 1 through the water inlet pipe 2, when the first filter screen plate 7 is used for a long time, the first filter screen plate 7 is blocked, or the impurity content of the water source is increased, so that the first filter screen plate 7 can not timely filter the water source, the driving mechanism is started, under the action of the driving mechanism, the first ball valve 5 is enabled to rotate anticlockwise, the second ball valve 8 is enabled to rotate clockwise, the first through groove 6 of the first ball valve 5 is enabled to vertically upwards, the communication with the inner cavity of the mounting pipe 3 is canceled, meanwhile, the filtering surface of the first filter screen plate 7 is downwards, the second through groove 9 of the second ball valve 8 is vertically upwards, the communication with the inner cavity of the mounting pipe 3 is canceled, and meanwhile, the water inlet groove 901 and the water supply pipe 4 are dislocated, the left through cavity of the second through groove 9 is communicated with the water supply pipe 4, the right through cavity of the second through groove 9 is communicated with the water discharge groove 10, the filtering surface of the second filter screen plate 11 faces upwards, at the moment, a water source is discharged downwards under the drainage effect of the second through groove 9, and the impurities in the water source are filtered through the second filter screen plate 11, so that the impurities in the water source are blocked above the second filter screen plate 11, when the first ball valve 5 rotates anticlockwise to enable the filtering surface of the first filter screen plate 7 to face downwards, at the moment, the upper port and the lower port of the first through groove 6 are respectively communicated with the first water discharge hole and the second water discharge hole 14, then under the effect of a water discharge mechanism, the water in the storage shell 12 is discharged from the upper part of the first filter screen plate 7, the surface of the first filter screen plate 7 is washed, the adhesion of the impurities on the first filter screen plate 7 is reduced, and the filtering capability of the first filter screen plate 7 on the water source is maintained advantageously, the impurities attached to the filtering surface of the first filter screen plate 7 are washed down and then discharged through the second water discharge hole 14, when the washing is finished or the impurities flow into a clean water source, the first ball valve 5 and the second ball valve 8 are rotated and reset under the action of the driving mechanism, at the moment, the filtering surface of the second filter screen plate 11 faces the left through cavity end, when the water source enters the second through groove 9, the impurities on the second filter screen plate 11 are washed down transversely, the impurities attached to the second filter screen plate 11 are reduced, thereby being beneficial to improving the filtering of the water source by the second filter screen plate 11, and the filtering surface of the first filter screen plate 7 faces the water flow direction after the washing is finished, the water source is continuously filtered, the water service is free of negative pressure water supply system, and when the first filter screen plate 7 is blocked by arranging the first ball valve 5, the first filter screen plate 7, the second ball valve 8 and the second filter screen plate 11, or the water source impurity content increases for when first filter screen plate 7 can not in time filter the water source, make first ball valve 5 anticlockwise rotation, second ball valve 8 clockwise rotation, thereby seal installation tube 3, avoid not clean water source that has the peculiar smell to enter into water affair no negative pressure water supply ware 1, under drainage mechanism's effect, wash away first filter screen plate 7 simultaneously, the filter surface of first filter screen plate 7 is down, can wash away impurity on the first filter screen plate 7 after, just can be along second wash port 14 discharge, realize self-cleaning first filter screen plate 7, be favorable to maintaining first filter screen plate 7 filtration capacity, thereby improve resident water quality.
As an implementation mode of the invention, first sliding grooves are transversely and symmetrically formed in the inner wall of the first through groove 6, first sliding rods 17 are fixedly connected in the two first sliding grooves, and the surfaces of the two first sliding rods 17 are connected with a first filter screen plate 7 in a common sliding rod manner; in operation, the first screen panel 7 is slid within the first ball valve 5 by the provision of the first slide bar 17.
As an implementation mode of the invention, the inner wall of the left through cavity of the second through groove 9 is symmetrically provided with second sliding grooves, second sliding rods 18 are fixedly connected in the two second sliding grooves, and the surfaces of the two second sliding rods 18 are connected with a second filter screen plate 11; in operation, the second screen panel 11 is slid within the second ball valve 8 by the provision of the second slide bar 18.
As one embodiment of the invention, the driving mechanism comprises two mounting shells 19, two first rotating rods 20 and two second rotating rods 21, wherein the mounting shells 19 are symmetrically and fixedly connected to two sides of a mounting tube 3, one ends of the two first rotating rods 20 are symmetrically and fixedly connected to the outer side wall of a first ball valve 5, the other ends of the first rotating rods 20 are rotationally connected to the outer side wall of the mounting shell 19, one ends of the two second rotating rods 21 are symmetrically and fixedly connected to the outer side wall of a second ball valve 8, the other ends of the second rotating rods 21 penetrate through the mounting tube 3 and extend to the side wall of the mounting shell 19, the second rotating rods 21 are respectively rotationally connected with the mounting tube 3 and the mounting shell 19, the surface of the first rotating rods 20 is fixedly connected with a first gear 22, the side surface of the first gear 22 is meshed with a second gear 23, the shaft of the second gear 23 is rotationally connected to the side wall of the mounting shell 19, the shaft surface of the second gear 23 is jointly and rotationally connected with a transmission belt 24, the outer side wall of the mounting shell 19 is fixedly connected with a motor 25, and the end part of the motor 25 penetrates through the side wall of the mounting shell 19 and is rotationally connected with the output shaft 25 of the motor 19; the surface of the first filter screen plate 7 is fixedly connected with a first pressure sensor 26, the side wall of the first pressure sensor 26 is fixedly connected with a first spring 27, the first spring 27 is sleeved on the surface of the first slide bar 17, and one end, far away from the first pressure sensor 26, of the first spring 27 is fixedly connected to the side wall of the first slide groove; the surface of the second filter screen plate 11 is fixedly connected with a second pressure sensor 28, the side wall of the second pressure sensor 28 is fixedly connected with a second spring 29, the second spring 29 is sleeved on the surface of the second slide bar 18, and the two ends, far away from the second pressure sensor 28, of the second spring 29 are fixedly connected to the side wall of the second slide groove;
in operation, by setting the driving mechanism, when the first filter screen plate 7 is used for a long time, the first filter screen plate 7 is blocked, or the impurity content of the water source is increased, so that when the first filter screen plate 7 cannot timely filter the water source, the pressure in the first filter screen plate 7 is increased, the first spring 27 is compressed and acts on the first pressure sensor 26, when the pressure value reaches a specified value, the motor 25 is controlled by the first pressure sensor 26, the output shaft of the motor 25 is rotated anticlockwise, so that the first rotating rod 20 is rotated anticlockwise, the first ball valve 5 is rotated anticlockwise, the second gear 23 is rotated clockwise under the meshing action of the first gear 22 and the second gear 23, the second rotating rod 21 is rotated clockwise under the transmission of the transmission belt 24, the second ball valve 8 is rotated clockwise, and when the first ball valve 5 is rotated anticlockwise, after the filter surface of the first filter screen 7 faces downwards, the first filter screen 7 vibrates under the action of the first spring 27, so that impurities on the first filter screen 7 are shaken down in a vibrating mode, meanwhile, under the action of the drainage mechanism, water is flushed from the top of the first filter screen 7 and contacts with the vibrated first filter screen 7, so that the flushing of the impurities on the first filter screen 7 is improved, after the second ball valve 8 rotates clockwise, the filter surface of the second filter screen 11 faces upwards, the water source starts to be filtered, the impurities in the water source are filtered on the top of the second filter screen 11, pressure is generated on the second filter screen 11, the second spring 29 is compressed, the second pressure sensor 28 is acted on under the pressure, after the second pressure sensor 28 reaches a specified value, the motor 25 is started, the motor 25 is rotated clockwise, under the same principle, the first ball valve 5 and the second ball valve 8 are reset, the filtering surface of the second filter screen plate 11 faces the left through cavity of the second through groove 9, and the second spring 29 is reset, so that the second filter screen plate 11 generates transverse vibration, when clean water source flows into the second through groove 9 again, a part of water source flows into the first ball valve 5 rightwards, and the other part of water source flushes the second filter screen plate 11 leftwards, and the second filter screen plate 11 vibrates along with the second filter screen plate 11, so that the second filter screen plate 11 shakes water in the second through groove 9, thereby being beneficial to improving the cleaning capability of the second filter screen plate 11.
As one embodiment of the invention, the drainage mechanism comprises a piston 30, the piston 30 is slidably connected in a storage shell 12, elastic connectors are arranged on the side wall of the piston 30 and the inner wall of the storage shell 12 together, a push rod 31 is symmetrically and fixedly connected to the side wall of the piston 30, a linkage block 32 is fixedly connected to one end of the push rod 31 far away from the piston 30, a linkage plate 33 is fixedly connected to the surface of a first rotating rod 20, a vertical groove 34 is longitudinally formed in the surface of the linkage plate 33, a connecting shaft 35 is slidably connected in the vertical groove 34, a push block 36 is rotatably connected to one end of the connecting shaft 35 far away from the linkage plate 33, the push block 36 is longitudinally slidably connected to the top end wall of a mounting shell 19, a guide inclined surface is formed at the top end of the linkage block 32, a guide inclined surface is formed at the bottom end of the push block 36, and a vent hole is formed in the right side of the storage shell 12; when the device works, by arranging the drainage mechanism, when the first rotating rod 20 rotates anticlockwise, the linkage plate 33 rotates, the pushing block 36 moves upwards under the traction of the vertical groove 34, the pushing block 36 cancels the contact pushing action on the linkage block 32, the left pushing force is provided for the piston 30 under the action of the elastic connecting piece, after the rotation of the first ball valve 5 is finished, the upper port and the lower port of the through groove are respectively communicated with the first drainage hole and the second drainage hole 14, under the pressure of the piston 30, the water in the storage shell 12 is discharged from the injection hole 15, the water is discharged from the upper side of the first filter screen 7, the surface of the first filter screen 7 is washed, the attachment of impurities on the first filter screen 7 is reduced, thereby be favorable to improving the filtration of first filter screen plate 7 to the water source, the impurity that first filter screen plate 7 filters the face and adheres to is washed away the back, can discharge through second wash port 14, after washing the end or flow into clean water source back, second ball valve 8 resets, first ball valve 5 bottom this moment, installation pipe 3 and storage shell 12 inlet 16 intercommunication, push block 36 promotes linkage board 33, make piston 30 slide rightwards, the elastic connection piece produces the elasticity, the intracavity pressure of storage shell 12 in piston 30 left side reduces this moment, when clean water source flows into in second ball valve 8, water flows into storage shell 12 through inlet 16, accomplish the water adding, prepare for next washing first filter screen plate 7.
As one implementation mode of the invention, a U-shaped conduit 37 is fixedly communicated in the drainage tank 10, the other end of the U-shaped conduit 37 is fixedly communicated with the inner cavity of the installation pipe 3, a first connecting pipe 38 is fixedly communicated with the bottom end of the installation pipe 3 near the first ball valve 5, and an electromagnetic valve 39 is arranged on the surface of the first connecting pipe 38; during operation, through setting up U-shaped pipe 37 and solenoid valve 39, when first ball valve 5 anticlockwise rotation second ball valve 8 clockwise rotation, solenoid valve 39 opens, when second filter screen 11 filters the water source, water can be discharged into U-shaped pipe 37 through water drainage tank 10, through U-shaped pipe 37's drainage, make water enter into in the installation pipe 3 inner chamber, wash the remaining impurity in the installation pipe 3 inner chamber, the impurity that washes down is discharged through first connecting pipe 38, be favorable to reducing the remaining of impurity in the installation pipe 3 inner chamber, after first filter screen 7 washes and finishes, first ball valve 5 and second ball valve 8 reset, solenoid valve 39 is closed, before clean water source flows into first ball valve 5, the remaining water source in the installation pipe 3 flows into first ball valve 5 first, and under drainage mechanism's effect, be inhaled into storage shell 12, be favorable to annotating full with storage shell 12.
As one embodiment of the invention, the left end of the mounting tube 3 is fixedly communicated with a first L-shaped conduit 40, and the surface of the first L-shaped conduit 40 is provided with a valve 41; during operation, through setting up first L shape pipe 40, after second filter screen plate 11 filters, the water source washes second filter screen plate 11, washes the impurity on the second filter screen plate 11 down, flows into in the first L shape pipe 40, opens valve 41 afterwards, discharges impurity, and after the discharge impurity, the valve 41 is closed again, avoids the water source to run off.
As one embodiment of the present invention, the second water discharge hole 14 is fixedly connected with a second connecting pipe 42, and the ends of the second connecting pipe 42 and the first connecting pipe 38 are fixedly connected with a second L-shaped conduit 43; during operation, through setting up second connecting pipe 42 for the impurity of the intraductal exhaust of U-shaped and first filter screen plate 7 impurity all pass through second connecting pipe 42 and discharge, be convenient for concentrate the water that collects and have the impurity.
As an embodiment of the present invention, the elastic connection member includes a plurality of compression springs 44, and both ends of the compression springs 44 are fixedly connected to the piston 30 and the storage case 12, respectively; in operation, the provision of the compression spring 44 facilitates an increase in the reverse action on the piston 30 and thus the velocity of the water injected from the injection hole 15.
As an implementation mode of the invention, the top end of the installation shell 19 is fixedly connected with a connecting rod 45, and the bottom end of the connecting rod 45 penetrates through the pushing block 36 and is in sliding connection with the pushing block 36; during operation, the connecting rod 45 is arranged, so that the pushing rod 31 slides up and down along the connecting rod 45 for limiting.
The working principle of the invention is as follows: the water supply pipe 4 is connected with the installation pipe 3, so that a water source enters the inner cavity of the installation pipe 3, firstly, the water source enters the second through groove 9 through the water inlet groove 901 in the second ball valve 8, the water source enters the inner cavity of the installation pipe 3 through the drainage of the second through groove 9, then enters the first through groove 6 in the first ball valve 5 from the inner cavity of the installation pipe 3, after being filtered by the first filter screen 7, the water source enters the water inlet pipe 2, the water is supplied to the water service non-negative pressure water supply device 1 through the water inlet pipe 2, when the first filter screen 7 is used for a long time, the first filter screen 7 is blocked, or the impurity content of the water source is increased, when the first filter screen 7 cannot filter the water source in time, the driving mechanism is started, under the action of the driving mechanism, the first ball valve 5 rotates anticlockwise, the second ball valve 8 rotates clockwise, the first through groove 6 of the first ball valve 5 is vertical upwards, the communication with the inner cavity of the installation pipe 3 is canceled, the filtering surface of the first filter screen plate 7 faces downwards, the second through groove 9 of the second ball valve 8 faces upwards vertically, the communication with the inner space of the installation pipe 3 is canceled, the water inlet groove 901 is staggered with the water supply pipe 4, the left through cavity of the second through groove 9 is communicated with the water supply pipe 4, the right through cavity of the second through groove 9 is communicated with the water drainage groove 10, the filtering surface of the second filter screen plate 11 faces upwards, at the moment, the water source is discharged downwards under the drainage effect of the second through groove 9, and the filtering is carried out through the second filter screen plate 11, so that impurities in the water source are blocked above the second filter screen plate 11, when the first ball valve 5 rotates anticlockwise to enable the filtering surface of the first filter screen plate 7 to face downwards, at the moment, the upper port and the lower port of the first through groove 6 are respectively communicated with the first water drainage hole and the second water drainage hole 14, and then under the effect of the water drainage mechanism, the water in the storage shell 12 is discharged from the jet hole 15, the water is discharged from the upper part of the first filter screen plate 7, the surface of the first filter screen plate 7 is washed, the attachment of impurities on the first filter screen plate 7 is reduced, the filter capacity of the first filter screen plate 7 on a water source is favorably maintained, the impurities attached to the filter surface of the first filter screen plate 7 are washed down and then discharged through the second water discharge holes 14, when the washing is finished or the water source which is clean flows into the first filter screen plate 7, under the action of a driving mechanism, the first ball valve 5 and the second ball valve 8 are enabled to rotate and reset, at the moment, the filter surface of the second filter screen plate 11 faces towards the left through cavity end, when the water source enters the second through groove 9, the impurities on the second filter screen plate 11 are transversely washed, the attachment of the impurities on the second filter screen plate 11 is reduced, the filter of the second filter screen plate 11 is favorably improved, and the filter surface of the first filter screen plate 7 faces towards the water flow direction after the washing is finished, and the water source is continuously filtered.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.