CN209818864U - Magnetic waste water valve - Google Patents

Abstract

The utility model provides a magnetized waste water valve, which comprises a valve body, a water inlet and a water outlet which are positioned on the valve body, wherein a valve cavity and a valve core which is positioned in the valve cavity are arranged in the valve body, and the bottom of the valve cavity is provided with an inlet and an outlet which are uniformly distributed by 180 degrees; one end of the valve core, which is back to the bottom surface of the valve cavity, is provided with an end surface groove, a plurality of groups of holes which are uniformly distributed along the circumferential direction of the end surface groove are arranged between the bottom of the end surface groove and one surface of the valve core, which faces the bottom surface of the valve cavity, and the holes comprise pressure regulating holes and flushing holes; two groove walls of the end surface groove are respectively a small-diameter cylindrical wall and a large-diameter cylindrical wall, inner magnet installation grooves are uniformly distributed on the small-diameter cylindrical wall along the circumferential direction of the small-diameter cylindrical wall, outer magnet installation grooves are uniformly distributed on the large-diameter cylindrical wall along the circumferential direction of the large-diameter cylindrical wall, and magnets are arranged on the inner magnet installation grooves and the outer magnet installation grooves. The utility model discloses can carry out the back flush to the case to get rid of the incrustation scale, can adjust filtering pressure according to different areas quality of water, and can reduce the incrustation scale as far as and produce.

Description

Magnetic waste water valve

Technical Field

The utility model relates to a reverse osmosis water purifier's valve field, concretely relates to magnetization waste water valve.

Background

Reverse osmosis is a process of separating water molecules from solutes in a water body by using the permselectivity of a selective membrane, which is permeable only to water and impermeable to solutes, as a driving force by a pressure higher than the osmotic pressure.

The reverse osmosis water purifier is a machine which mainly utilizes the reverse osmosis principle to carry out water treatment. The conductivity of pure water of general tap water filtered by an RO membrane is 5 mus/cm (the conductivity of outlet water after the RO membrane is filtered = the conductivity of inlet water multiplied by the desalination rate, the desalination rate of general import reverse osmosis membrane can reach more than 99%, and the operation can be guaranteed more than 97% within 5 years). And performing circulating filtration by using an atomic-grade ion exchange column, wherein the effluent resistivity can reach 18.2 M.cm, which exceeds the national laboratory first-grade water standard (GB 682-92). It mainly adopts reverse osmosis membrane technology. The working principle of the device is that a certain pressure is applied to water, so that water molecules and ionic mineral elements pass through a reverse osmosis membrane, and most of inorganic salts (including heavy metals), organic matters, bacteria, viruses and the like dissolved in the water cannot permeate through the reverse osmosis membrane, so that permeated purified water and impermeable concentrated water are strictly separated; the aperture of the reverse osmosis membrane is only 0.0001 micron, the diameter of the virus is generally 0.02-0.4 micron, and the diameter of the common bacteria is 0.4-1 micron, so that people can feel relieved about the flowing of the clean spring in the drinking water purifier. The water purifier is divided into a manual type (economical type) and an automatic type according to the using condition, the difference is only in the back washing aspect of the water purifier, and the economical type water purifier uses a manual back washing valve. Meanwhile, the water purifier is divided into an upper cabinet type and a lower cabinet type according to the use characteristics, and the functions are the same.

Meanwhile, reverse osmosis water purifiers in the market currently have two flushing modes for the osmosis membrane, one mode is forward flushing and the other mode is reverse flushing, the forward flushing adopts a mode of controlling the flow of a wastewater outlet to control a filtering mode or a flushing mode, if the wastewater outlet is small, the osmotic pressure of a filtering membrane is increased, the pure water yield is increased immediately, if the filtering membrane needs to be flushed, the flow cross section of a waste water valve is opened to the maximum, so that tap water flows to the waste water valve from the filtering membrane completely, thereby realizing the flushing action, the current waste water valve is only provided with two openings, the cross section cannot be switched aiming at areas with different water qualities, if the areas with poor water qualities are provided, the cross section of the waste water valve needs to be increased properly to increase the waste water discharge speed, so that the higher pure water discharge is obtained, and in some areas with better water quality, the cross section of the waste water valve can, thereby make filtration efficiency increase by a wide margin, reduce the waste of water resource, consequently the waste water valve that the flow cross-section is fixed causes the waste of water resource and the decline of filtration efficiency easily, and when long-term the use, the valve content easily produces the incrustation scale and makes the case motion in the valve obstructed simultaneously, also can influence the normal emission of waste water, directly causes filtration membrane filtration bearing pressure increase to influence filtration efficiency.

SUMMERY OF THE UTILITY MODEL

Based on the above problem, the utility model aims to provide a can carry out the back flush to the case to get rid of the incrustation scale, can adjust filtering pressure according to different areas quality of water, and can reduce the magnetization waste water valve that the incrustation scale produced as far as possible.

Aiming at the problems, the following technical scheme is provided: a magnetized waste water valve comprises a valve body, wherein a water inlet and a water outlet are formed in two sides of the valve body, a valve cavity is formed in the valve body, a valve core which is driven to rotate by a motor is arranged in the valve cavity, the valve core can rotate 180 degrees during backflushing descaling, an inlet communicated with the water inlet and an outlet communicated with the water outlet are formed in the bottom of the valve cavity, and the inlet and the outlet are uniformly distributed and formed in a 180-degree mode by taking the center of the valve cavity as an axis; one end, back to the bottom surface of the valve cavity, of the valve core is provided with an end surface groove, a plurality of groups of holes which are uniformly distributed and formed along the circumferential direction of the end surface groove are formed between the bottom of the end surface groove and one surface, facing the bottom surface of the valve cavity, of the valve core, the number of the holes in each group is two, the holes are uniformly distributed and formed in an angle of 180 degrees, each hole comprises a pressure regulating hole which is arranged along the circumferential direction of the end surface groove, the diameter of each pressure regulating hole is gradually increased, and a flushing hole behind the pressure regulating hole with; the two groove walls of the end surface groove are respectively a small-diameter cylindrical wall and a large-diameter cylindrical wall, a plurality of inner magnet installation grooves which are formed in the axial direction of the valve core are uniformly distributed on the small-diameter cylindrical wall along the circumferential direction of the small-diameter cylindrical wall, a plurality of outer magnet installation grooves which are formed in the axial direction of the valve core are uniformly distributed on the large-diameter cylindrical wall along the circumferential direction of the large-diameter cylindrical wall, and magnets which are fixed with the inner magnet installation grooves in an interference fit mode are arranged on the inner magnet installation grooves and the.

In the structure, according to different water qualities in different areas, the valve core is rotated to a corresponding angle to enable the pressure regulating holes with specific apertures to be aligned with the inlet and the outlet, so that the optimal reverse osmosis membrane filtering pressure is matched, the reverse osmosis membrane achieves the optimal filtering efficiency, and meanwhile, because scale is easily generated on the pressure regulating holes when the reverse osmosis membrane is used for a long time, the motor drives the valve core to rotate 180 degrees after working for a specific time, so that the direction of water flow flowing through the pressure regulating holes is changed, the scale can automatically fall off under the reverse water flow scouring, and the purposes of automatic descaling and blockage prevention are achieved; meanwhile, in order to reduce the generation of scale as much as possible, the magnet is arranged on the end face groove through which the wastewater flows, so that the water flow can be magnetized when passing, the generation of the scale is reduced, the growth speed of the scale is reduced fundamentally, and the aims of prolonging the service life and reducing the maintenance frequency are fulfilled by matching with the backwashing descaling.

The utility model is further arranged that the magnet positioned on the outer magnet mounting groove extends towards the direction of the small-diameter cylindrical wall and is in clearance fit with the small-diameter cylindrical wall; the magnets positioned on the inner magnet mounting grooves extend towards the direction of the large-diameter cylindrical wall and are in clearance fit with the large-diameter cylindrical wall, and the magnets on the outer magnet mounting grooves are positioned between the magnets on the adjacent inner magnet mounting grooves and are not in contact with each other.

In the structure, all magnets on the outer magnet installation groove and the inner magnet installation groove are in concave-convex insertion fit and are not in contact with each other, and the duration of magnetization can be prolonged when wastewater flows between the magnets, so that an effective magnetization effect is guaranteed.

The utility model discloses further set up to, interior magnet mounting groove and outer magnet mounting groove are less than the terminal surface slot groove deeply towards the length that terminal surface slot tank bottom direction was seted up.

In the structure, the interference between the magnet and the pressure regulating hole after the magnet is installed in place can be avoided, so that the pressure regulating hole is blocked to influence the flow cross section.

The utility model discloses further set up to, still include the sealing washer mounting groove, the sealing washer mounting groove is located the valve pocket bottom surface of import and export outer fringe department, be equipped with the sealing washer on the sealing washer mounting groove, the sealing washer is sealed with the case contact.

In the structure, the valve core can be sealed with the inlet and the outlet, and the phenomenon that partial waste water directly flows out without throttling of the valve core to influence the filtering effect due to leakage between the inlet and the outlet is avoided.

The utility model discloses further set up to, the valve pocket top is equipped with the opening, the opening top is equipped with the valve gap, be equipped with waterproof ring in the opening, be equipped with outer slot on the outer face of cylinder of waterproof ring, be equipped with the sealing washer on the outer slot, the last sealing washer of outer slot is sealed with the contact of valve pocket inner wall.

In the structure, the sealing ring of the outer groove is used for sealing a gap between the waterproof ring and the inner cylindrical wall of the valve cavity.

The utility model discloses further set up to, waterproof ring center is equipped with the gyration hole, be equipped with interior slot on the cylinder wall in the gyration hole, be equipped with the sealing washer on the interior slot, the one side center that the case was equipped with the terminal surface slot is equipped with the boss, the sealing washer cooperation on boss and the interior slot is sealed.

In the structure, the sealing ring on the inner groove is used for sealing a gap between the boss on the valve core and the rotary hole, so that leakage is avoided.

The utility model discloses further set up to, the boss center is equipped with twists reverse the hole, the motor is located the valve gap, the motor shaft passes the valve gap and twists reverse the jogged joint.

In the structure, the torsion hole is a spline hole, and the motor shaft of the motor is a spline shaft matched with the spline hole.

The utility model discloses further set up to, the opening terminal surface is equipped with the constant head tank with valve pocket inner wall juncture, waterproof ring outer fringe department be equipped with the location boss of constant head tank adaptation.

In the structure, the positioning groove is matched with the positioning boss, the waterproof ring can be circumferentially fixed, and the valve core is effectively prevented from rotating along with the valve core due to the fact that friction force between the valve core and the sealing ring causes the waterproof ring to rotate.

The utility model discloses further set up to, the case is equipped with the location axle towards the one side of valve pocket at its center, valve pocket bottom center be equipped with the gyration hole of location axle adaptation.

In the structure, the positioning shaft is matched with the rotary pit, so that rotary support can be further provided for the valve core, and the rotary stability of the valve core is effectively improved.

The utility model discloses further set up to, magnet concentrates on the terminal surface slot circumferential direction that is equipped with the pressure regulating hole, wash no outer magnet mounting groove and interior magnet mounting groove on the path cylinder wall and the big footpath cylinder wall of hole position department.

In the above-mentioned structure, wash the hole purpose and realize washing the effect in order to increase the flow of circulation cross-section, consequently if set up magnet and influence the mobility of rivers easily on washing the path cylinder wall and the major diameter cylinder wall of hole position department, increase the flow resistance of rivers, be unfavorable for large-traffic washing.

The utility model discloses further set up to, magnet is rubidium indisputable boron magnet.

In the structure, the rubidium iron boron magnet has the advantages of strong magnetism and good magnetization effect.

The utility model discloses further set up to, wash between hole and the pressure regulating hole and between the adjacent pressure regulating hole of group equipartition angle be 45 degrees.

In the structure, the flushing holes are preferably selected to be one group, and the pressure regulating holes are preferably selected to be three groups.

The utility model discloses further set up to, the motor is step motor.

In the structure, because the dividing angle of the valve core is 45 degrees when the valve core rotates, and the rotating angle of the valve core is 180 degrees in a backflushing descaling state, the rotating angle can not be effectively controlled by a common motor, so that the rotating angle can only be accurately controlled by a stepping motor, and the adjustment is convenient.

The utility model has the advantages that: according to different water qualities in different areas, the valve core is rotated to a corresponding angle to enable the pressure regulating holes with specific apertures to be aligned to the inlet and the outlet, so that the optimal reverse osmosis membrane filtering pressure is matched, the reverse osmosis membrane achieves the optimal filtering efficiency, and meanwhile, because scale is easily generated on the pressure regulating holes when the valve core is used for a long time, the motor drives the valve core to rotate 180 degrees after the valve core is operated for a specific time, the direction of water flowing through the pressure regulating holes is changed, the scale can automatically fall off under the reverse water flow scouring, and the purposes of automatic descaling and blockage prevention are achieved; meanwhile, in order to reduce the generation of scale as much as possible, the magnet is arranged on the end face groove through which the wastewater flows, so that the water flow can be magnetized when passing, the generation of the scale is reduced, the growth speed of the scale is reduced fundamentally, and the aims of prolonging the service life and reducing the maintenance frequency are fulfilled by matching with the backwashing descaling.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the present invention.

Fig. 3 is a schematic diagram of the explosion half-section structure of the present invention.

Fig. 4 is a schematic view of the valve core explosion structure of the present invention.

Fig. 5 is a schematic view of the valve core structure of the present invention.

The reference numbers in the figures mean: 10-a valve body; 11-a water inlet; 111-an inlet; 12-a water outlet; 121-an outlet; 13-a valve cavity; 131-an opening; 132-a positioning groove; 133-a spin pit; 14-a motor; 15-a valve core; 151-end face grooves; 1511-minor diameter cylinder wall; 1512-large diameter cylindrical wall; 1513-mounting groove for inner magnet; 1514-outer magnet mounting slot; 1515-magnet; 152-pressure regulating holes; 153-flushing holes; 154-boss; 155-twist hole; 156-positioning shaft; 16-a seal ring mounting groove; 17-a sealing ring; 18-a valve cover; 19-a waterproof ring; 191-outer grooves; 192-a rotary bore; 193-inner groove; 194-positioning the boss.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, the magnetic waste water valve shown in fig. 1 to 5 includes a valve body 10, a water inlet 11 and a water outlet 12 are disposed on two sides of the valve body 10, a valve cavity 13 is disposed in the valve body 10, a valve core 15 driven to rotate by a motor 14 is disposed in the valve cavity 13, the valve core 15 can rotate 180 degrees at an original position during backwashing descaling, an inlet 111 communicated with the water inlet 11 and an outlet 121 communicated with the water outlet 12 are disposed at the bottom of the valve cavity 13, and the inlet 111 and the outlet 121 are uniformly arranged in 180 degrees by taking the center of the valve cavity 13 as an axis; one end, back to the bottom surface of the valve cavity 13, of the valve core 15 is provided with an end surface groove 151, a plurality of groups of holes which are uniformly distributed and opened along the circumferential direction of the end surface groove 151 are formed between the bottom of the end surface groove 151 and one surface, facing the bottom surface of the valve cavity 13, of the valve core 15, the number of the holes in each group is two, the holes are uniformly distributed and arranged at 180 degrees, each hole comprises a pressure regulating hole 152 which is arranged along the circumferential direction of the end surface groove 151 and the diameter of each hole is gradually increased, and a flushing hole 153 behind the pressure regulating hole 152 with the largest diameter, and the diameter; two groove walls of the end surface groove 151 are respectively a small-diameter cylindrical wall 1511 and a large-diameter cylindrical wall 1512, a plurality of inner magnet installation grooves 1513 arranged along the axial direction of the valve core 15 are uniformly distributed on the small-diameter cylindrical wall 1511 along the circumferential direction, a plurality of outer magnet installation grooves 1514 arranged along the axial direction of the valve core 15 are uniformly distributed on the large-diameter cylindrical wall 1512 along the circumferential direction, and magnets 1515 fixed with the inner magnet installation grooves 1513 and the outer magnet installation grooves 1514 in interference fit are arranged on the inner magnet installation grooves 1513 and the outer magnet installation grooves 1514.

In the structure, according to different water qualities in different areas, the valve core 15 is rotated to a corresponding angle to enable the pressure regulating hole 152 with a specific aperture to be aligned with the inlet 111 and the outlet 121, so that the optimal reverse osmosis membrane filtering pressure is matched, the reverse osmosis membrane achieves the optimal filtering efficiency, and meanwhile, because scale is easily generated on the pressure regulating hole 152 when the valve core is used for a long time, the motor 14 drives the valve core 15 to rotate 180 degrees after working for a specific time, so that the direction of water flow flowing through the pressure regulating hole 152 is changed, the scale can automatically fall off under the reverse water flow scouring, and the purposes of automatic descaling and blockage prevention are achieved; meanwhile, in order to reduce the generation of scale as much as possible, the magnet 1515 is arranged on the end surface groove 15 through which the wastewater flows, so that the water flow can be magnetized when passing, the generation of the scale is reduced, the growth speed of the scale is reduced fundamentally, and the purposes of prolonging the service life and reducing the maintenance frequency are realized by matching with the recoil descaling.

In this embodiment, the magnet 1515 located on the outer magnet installation groove 1514 extends toward the small-diameter cylindrical wall 1511 and is in clearance fit with the small-diameter cylindrical wall 1511; the magnets 1515 on the inner magnet mounting grooves 1513 extend towards the large-diameter cylindrical wall 1512 and are in clearance fit with the large-diameter cylindrical wall 1512, and the magnets 1515 on the outer magnet mounting grooves 1514 are positioned on the magnets 1515 on the adjacent inner magnet mounting grooves 1513 and do not contact with each other.

In the structure, all magnets 1515 on the outer magnet installation groove 1514 and the inner magnet installation groove 1513 are in concave-convex insertion fit with each other and are not in contact with each other, and the duration of magnetization can be prolonged when wastewater flows between the magnets 1515, so that an effective magnetization effect is guaranteed.

In this embodiment, the lengths of the inner magnet installation groove 1513 and the outer magnet installation groove 1514 opened toward the bottom direction of the end face groove 15 are smaller than the groove depth of the end face groove 15.

In the above structure, it can be avoided that the magnet 1515 is installed in place and interferes with the pressure regulating hole 152, so that the pressure regulating hole 152 is blocked to influence the flow cross section.

In this embodiment, the valve further includes a sealing ring mounting groove 16, the sealing ring mounting groove 16 is located on the bottom surface of the valve cavity 13 at the outer edges of the inlet 111 and the outlet 121, a sealing ring 17 is disposed on the sealing ring mounting groove 16, and the sealing ring 17 is in contact sealing with one surface of the valve core 15 facing the bottom surface of the valve cavity 13.

In the structure, the valve core 15 can be sealed with the inlet 111 and the outlet 121, and the problem that partial waste water directly flows out without throttling of the valve core 15 to affect the filtering effect due to leakage between the inlet 111 and the outlet 121 is avoided.

In this embodiment, an opening 131 is arranged at the top of the valve cavity 13, a valve cover 18 is arranged above the opening 131, a waterproof ring 19 is arranged in the opening 131, an outer groove 191 is arranged on the outer cylindrical surface of the waterproof ring 19, a sealing ring 17 is arranged on the outer groove 191, and the sealing ring 17 on the outer groove 191 is in contact sealing with the inner wall of the valve cavity 13.

In the above structure, the sealing ring 17 of the outer groove 191 is used for sealing the gap between the waterproof ring 19 and the inner cylindrical wall of the valve chamber 13.

In this embodiment, a rotation hole 192 is formed in the center of the waterproof ring 19, an inner cylindrical wall of the rotation hole 192 is provided with an inner groove 193, the inner groove 193 is provided with a sealing ring 17, the center of one side of the valve core 15 provided with the end surface groove 151 is provided with a boss 154, and the boss 154 is matched with the sealing ring 17 on the inner groove 193 for sealing.

In the above configuration, the seal ring 17 in the inner groove 193 is used to seal the gap between the boss 154 and the rotary hole 192 in the valve body 15, thereby preventing leakage.

In this embodiment, the boss 154 is centrally provided with a torsion hole 155, the motor 14 is located on the valve cover 18, and a motor shaft of the motor 14 passes through the valve cover 18 and is connected with the torsion hole 155.

In the above structure, the torsion hole 155 is a spline hole, and the motor shaft of the motor 14 is a spline shaft adapted to the spline hole.

In this embodiment, a positioning groove 132 is disposed at a junction between the end surface of the opening 131 and the inner wall of the valve chamber 13, and a positioning boss 194 adapted to the positioning groove 132 is disposed at the outer edge of the waterproof ring 19.

In the above structure, the positioning groove 132 and the positioning boss 194 are matched, so that the waterproof ring 19 can be circumferentially fixed, and the waterproof ring 19 is effectively prevented from rotating along with the valve core 15 due to the friction force between the valve core 15 and the sealing ring 17 when the valve core 15 rotates.

In this embodiment, a positioning shaft 156 is disposed at the center of one side of the valve core 15 facing the valve cavity 13, and a rotation pit 133 adapted to the positioning shaft 156 is disposed at the center of the bottom of the valve cavity 13.

In the above structure, the positioning shaft 156 is matched with the rotation pit 133, so as to further provide rotation support for the valve core 15, and effectively improve the rotation stability of the valve core 15.

In this embodiment, the magnets 1515 are concentrated in the circumferential direction of the end surface groove 15 provided with the pressure adjusting holes 152, and the small-diameter cylindrical wall 1511 and the large-diameter cylindrical wall 1512 at the positions of the flushing holes 153 are free of the outer magnet mounting groove 1514 and the inner magnet mounting groove 1513.

In the above structure, the purpose of flushing the holes 153 is to increase the flow rate of the flow cross section to achieve the flushing effect, so that if the magnets 1515 are disposed on the small-diameter cylindrical wall 1511 and the large-diameter cylindrical wall 1512 at the positions of the flushing holes 153, the fluidity of the water flowing into and out of the end surface grooves 15 from the flushing holes 153 is easily affected, the flow resistance of the water is increased, and the flushing with a large flow rate is not facilitated.

In this embodiment, the magnet 1515 is a rubidium-iron-boron magnet.

In the structure, the rubidium iron boron magnet has the advantages of strong magnetism and good magnetization effect.

In this embodiment, the angles between the flushing holes 153 and the pressure regulating holes 152 and between the adjacent pressure regulating holes 152 are 45 degrees.

In the above structure, preferably, the flushing holes 153 are in one group, and the pressure regulating holes 152 are in three groups.

In this embodiment, the motor 14 is a stepping motor.

In the structure, because the index angle of the valve core 15 is 45 degrees when the valve core rotates and the rotation angle of the valve core is 180 degrees in a backflushing descaling state, the rotation angle cannot be effectively controlled by a common motor, so that the rotation angle can be accurately controlled only through a stepping motor, and the adjustment is convenient.

The utility model has the advantages that: according to different water qualities in different areas, the valve core 15 is rotated to a corresponding angle to enable the pressure regulating hole 152 with a specific aperture to be aligned with the inlet 111 and the outlet 121, so that the optimal reverse osmosis membrane filtering pressure is matched, the reverse osmosis membrane achieves the optimal filtering efficiency, and meanwhile, because scale is easily generated on the pressure regulating hole 152 when the valve core is used for a long time, the motor 14 drives the valve core 15 to rotate 180 degrees after working for a specific time, so that the direction of water flow flowing through the pressure regulating hole 152 is changed, the scale can automatically fall off under the reverse water flow scouring, and the purposes of automatic descaling and blockage prevention are achieved; meanwhile, in order to reduce the generation of scale as much as possible, the magnet 1515 is arranged on the end surface groove 15 through which the wastewater flows, so that the water flow can be magnetized when passing, the generation of the scale is reduced, the growth speed of the scale is reduced fundamentally, and the purposes of prolonging the service life and reducing the maintenance frequency are realized by matching with the recoil descaling.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a magnetization waste water valve, includes the valve body, the valve body both sides are equipped with water inlet and delivery port, be equipped with the valve pocket in the valve body, be equipped with in the valve pocket through motor drive pivoted case, its characterized in that: the valve core can rotate 180 degrees during back flushing descaling, the bottom of the valve cavity is provided with an inlet communicated with the water inlet and an outlet communicated with the water outlet, and the inlet and the outlet are uniformly distributed in 180 degrees by taking the center of the valve cavity as an axis; one end, back to the bottom surface of the valve cavity, of the valve core is provided with an end surface groove, a plurality of groups of holes which are uniformly distributed and formed along the circumferential direction of the end surface groove are formed between the bottom of the end surface groove and one surface, facing the bottom surface of the valve cavity, of the valve core, the number of the holes in each group is two, the holes are uniformly distributed and formed in an angle of 180 degrees, each hole comprises a pressure regulating hole which is arranged along the circumferential direction of the end surface groove, the diameter of each pressure regulating hole is gradually increased, and a flushing hole behind the pressure regulating hole with; the two groove walls of the end surface groove are respectively a small-diameter cylindrical wall and a large-diameter cylindrical wall, a plurality of inner magnet installation grooves which are formed in the axial direction of the valve core are uniformly distributed on the small-diameter cylindrical wall along the circumferential direction of the small-diameter cylindrical wall, a plurality of outer magnet installation grooves which are formed in the axial direction of the valve core are uniformly distributed on the large-diameter cylindrical wall along the circumferential direction of the large-diameter cylindrical wall, and magnets which are fixed with the inner magnet installation grooves in an interference fit mode are arranged on the inner magnet installation grooves and the.

2. A magnetized waste water valve according to claim 1, wherein: the magnet positioned on the outer magnet mounting groove extends towards the direction of the small-diameter cylindrical wall and is in clearance fit with the small-diameter cylindrical wall; the magnets positioned on the inner magnet mounting grooves extend towards the direction of the large-diameter cylindrical wall and are in clearance fit with the large-diameter cylindrical wall, and the magnets on the outer magnet mounting grooves are positioned between the magnets on the adjacent inner magnet mounting grooves and are not in contact with each other.

3. A magnetized waste water valve according to claim 1, wherein: the length of the inner magnet installation groove and the length of the outer magnet installation groove towards the bottom direction of the end face groove are smaller than the groove depth of the end face groove.

4. A magnetized waste water valve according to claim 1, wherein: the valve core is characterized by further comprising a sealing ring mounting groove, wherein the sealing ring mounting groove is located on the bottom surface of the valve cavity at the outer edges of the inlet and the outlet, a sealing ring is arranged on the sealing ring mounting groove, and the sealing ring is in contact sealing with the valve core.

5. A magnetized waste water valve according to claim 1, wherein: the improved valve is characterized in that an opening is formed in the top of the valve cavity, a valve cover is arranged above the opening, a waterproof ring is arranged in the opening, an outer cylindrical surface of the waterproof ring is provided with an outer groove, a sealing ring is arranged on the outer groove, and the sealing ring on the outer groove is in contact sealing with the inner wall of the valve cavity.

6. A magnetised waste water valve according to claim 5, wherein: the center of the waterproof ring is provided with a rotary hole, the inner cylindrical wall of the rotary hole is provided with an inner groove, the inner groove is provided with a sealing ring, the center of the side, provided with the end face groove, of the valve core is provided with a boss, and the boss is matched and sealed with the sealing ring on the inner groove.

7. A magnetised waste water valve according to claim 6, wherein: the center of the boss is provided with a twisting hole, the motor is positioned on the valve cover, and a motor shaft of the motor penetrates through the valve cover to be connected with the twisting hole.

8. A magnetised waste water valve according to claim 5, wherein: the joint of the opening end face and the inner wall of the valve cavity is provided with a positioning groove, and the outer edge of the waterproof ring is provided with a positioning boss matched with the positioning groove.

9. A magnetized waste water valve according to claim 1, wherein: the center of one side of the valve core facing the valve cavity is provided with a positioning shaft, and the center of the bottom of the valve cavity is provided with a rotary pit matched with the positioning shaft.

10. A magnetized waste water valve according to claim 1, wherein: the magnets are concentrated in the circumferential direction of end face grooves with pressure regulating holes, and the small-diameter cylindrical wall and the large-diameter cylindrical wall at the positions of the flushing holes are free of outer magnet mounting grooves and inner magnet mounting grooves.