Multifunctional multi-way valve for water treatment

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a multifunctional multi-way valve for water treatment, which comprises a valve body, a fixed valve plate and a movable valve plate which are respectively of a quartered structure, an inner valve cavity of the valve body comprises a central sewage discharge cavity, a working cavity, a water passing cavity, a backwashing cavity and a forward washing cavity, and the working cavity, the water passing cavity, the backwashing cavity and the forward washing cavity occupy one equal angle. A valve body partition beam is arranged in the backwashing chamber to divide the backwashing chamber into a first water outlet chamber communicated with the second filter element interface and a second water outlet chamber communicated with the water outlet, which have the same central angle; the fixed valve plate is provided with a central through hole, and a working water through hole, a water passing water through hole, a backwashing water through hole and a forward washing water through hole which account for an equal angle in proportion; the water passing cavity, the forward washing cavity and the working cavity are all communicated with the first filter element interface; the movable valve plate is provided with a central groove, a water inlet through hole, a first groove, a second groove and a third groove, wherein the water inlet through hole, the first groove, the second groove and the third groove are equally divided. The multi-way valve is of a brand-new quartering structure, the water inlet and outlet amount and the discharge capacity are reasonable, and the diversified design of a raw water flowing path can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment equipment technical field especially relates to a water treatment multifunctional multiway valve. BACKGROUND

[0002] In recent years, with the control valve of plane sealing structure more and more is applied to water treatment field, market has recognized the structure of plane multiway valve. Now's industrial or civil water treatment system mostly adopts multifunctional multiway valve to carry out flow passage switching, such as the multiway valve of filter system, can realize filtration, backwashing, positive washing and so on. Multiway valve is generally used in carbon filter, sand filter and other industrial water treatment equipment, and is widely used for removing impurities, residual chlorine, heavy metals and the like on household water treatment equipment, and improves the water quality of people.

[0003] The multiway valve used in the existing filter system mostly comprises a valve body, a movable valve disc and a fixed valve disc, and different angles of rotation of the movable valve disc in the valve body are utilized to realize functions such as positive washing, backwashing and filtration. For example, a water treatment filter valve with a closing function disclosed in Chinese Utility Model Patent No. CN20717874U introduces a structure in which the movable valve disc and the fixed valve disc are circumferentially divided into seven equal parts and six equal parts. For another example, a fluid valve and a valve disc assembly for the fluid valve disclosed in Chinese Utility Model Patent No. CN209012476U introduces a structure in which the movable valve disc and the fixed valve disc are circumferentially divided into nine equal parts. However, with the increase in the number of equal parts, the effective water passage area in the valve body will be correspondingly reduced, and the water inflow and outflow and the sewage discharge of the valve body will be affected to a certain extent. In order to filter larger flow of raw water, the common practice is to increase the area of the movable valve disc and the fixed valve disc, which undoubtedly increases the size of the valve body and the manufacturing cost. Of course, in addition to meeting the normal functions of the valve body, the valve body, the movable valve disc and the fixed valve disc can also be divided into a smaller number of equal parts to increase the water inflow and outflow and the sewage discharge. How to effectively design the structure of the multiway valve so that, in addition to meeting the normal functions of the valve body, the valve body, the movable valve disc and the fixed valve disc can be divided into a smaller number of equal parts has become a problem to be solved by those skilled in the art. SUMMARY

[0004] To solve the problems in the prior art, the utility model provides a water treatment multifunctional multiway valve.

[0005] To solve the above problems, the water treatment multifunctional multiway valve provided by the utility model adopts the following technical scheme:

[0006] The water treatment multifunctional multiway valve comprises a valve body, a movable valve disc and a fixed valve disc installed in the valve body, the valve body is provided with a water inlet, a water outlet, a sewage outlet, a first filter core interface and a second filter core interface, the first filter core interface is used for communicating with a filter tank body, and the second filter core interface is used for communicating with a central pipe;

[0007] The valve body, the movable valve plate and the fixed valve plate are all four-part structure;

[0008] The valve body has an outer valve cavity and an inner valve cavity, the outer valve cavity is communicated with the water inlet, the inner valve cavity includes a central drain chamber communicated with the drain outlet, and a working chamber, a water passing chamber, a backwash chamber and a forward wash chamber each occupying an equal angle along the circumferential direction of the central drain chamber; the backwash chamber is provided with a valve body separation beam to separate the backwash chamber into a first water outlet chamber and a second water outlet chamber with the same central angle; the water passing chamber, the forward wash chamber and the working chamber are communicated with the first filter core interface; the first water outlet chamber is communicated with the second filter core interface; the second water outlet chamber is communicated with the water outlet;

[0009] The fixed valve plate has a central through hole and a working water passing hole, a water passing water passing hole, a backwash water passing hole and a forward wash water passing hole each occupying an equal angle along the circumferential direction of the central through hole; the backwash water passing hole is provided with an arc-shaped first fixed valve plate separation beam to separate the backwash water passing hole into a first water outlet hole and a second water outlet hole with the same central angle; the first water outlet hole is correspondingly communicated with the first water outlet chamber; the second water outlet hole is correspondingly communicated with the second water outlet chamber; the water passing water passing hole is correspondingly communicated with the water passing chamber; the working water passing hole is correspondingly communicated with the working chamber; the forward wash water passing hole is correspondingly communicated with the forward wash chamber; one of the water passing water passing hole, the working water passing hole and the forward wash water passing hole is provided with an arc-shaped second fixed valve plate separation beam and a straight third fixed valve plate separation beam to separate the water passing hole into a fixed valve plate blind plate, a third water outlet hole and a fourth water outlet hole with the same central axis;

[0010] The movable valve plate has a central groove and a water inlet hole, a first groove, a second groove and a third groove each occupying an equal angle along the circumferential direction of the central groove; one of the first groove, the second groove and the third groove is provided with an arc-shaped first movable valve plate separation beam to separate the groove into a first blind groove and a second blind groove with the same central angle; one of the first groove, the second groove and the third groove is provided with an arc-shaped second movable valve plate separation beam and a straight third movable valve plate separation beam to separate the groove into a drain blind groove, a third blind groove and a fourth blind groove with the same central axis; the drain blind groove is communicated with the central groove; the sum of the central angles corresponding to the third blind groove and the drain blind groove is equal to the sum of the central angles corresponding to the fixed valve plate blind plate and the third water outlet hole, and is equal to the central angles corresponding to the fourth water outlet hole and the fourth blind groove; the water inlet hole is provided with a movable valve plate blind plate capable of covering the second water outlet chamber and the fourth water outlet hole.

[0011] Further, the second fixed valve plate separation beam and the third fixed valve plate separation beam are arranged in the forward washing through hole, the third water outlet through hole and the fourth water outlet through hole are both communicated with the forward washing chamber upward and downward, and the pipeline at the blowdown port penetrates through the forward washing chamber and is communicated with the central blowdown chamber; the first movable valve plate separation beam is arranged in the first groove, and the second movable valve plate separation beam and the third movable valve plate separation beam are arranged in the second groove.

[0012] Further, the top of the working chamber, the water passing chamber, the backwashing chamber and the forward washing chamber is flush, the top of the central blowdown chamber is protruded upward outside the working chamber, and the central through hole is sleeved outside the central blowdown chamber.

[0013] Further, the central angle corresponding to the blowdown blind groove is equal to the central angle corresponding to the fixed valve plate blind plate, and the central angle corresponding to the third blind groove is equal to the central angle corresponding to the third water outlet through hole.

[0014] Further, the central angle corresponding to the blowdown blind groove is not less than the central angle corresponding to the third blind groove.

[0015] Further, the valve body is an integral molding structure.

[0016] The water treatment multifunctional multi-way valve has the following beneficial effects:

[0017] The water treatment multifunctional multi-way valve has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 FIG. 1 is a perspective view of an embodiment of the water treatment multifunctional multi-way valve of the present application;

[0020] Figure 2 Fig. 1 is a perspective view of the water treatment multifunctional multi-way valve of the present application; Figure 1 Fig. 2 is a top view of the valve body of the water treatment multifunctional multi-way valve of the present application;

[0021] Figure 3 Fig. 3 is a bottom view of the valve body of the water treatment multifunctional multi-way valve of the present application; Figure 1 Fig. 4 is a perspective view of the water treatment multifunctional multi-way valve of the present application;

[0022] Figure 4 Fig. 5 is a perspective view of the fixed valve disc of the water treatment multifunctional multi-way valve of the present application;

[0023] Figure 5 Fig. 6 is a perspective view of the fixed valve disc installed on the valve body of the water treatment multifunctional multi-way valve of the present application;

[0024] Figure 6 Fig. 7 is a perspective view of one of the moving valve discs of the water treatment multifunctional multi-way valve of the present application;

[0025] Figure 7 Fig. 8 is a perspective view of the other moving valve disc of the water treatment multifunctional multi-way valve of the present application;

[0026] Figure 8 Fig. 9 is a plan view of the relative position relationship between the moving valve disc and the valve body of the water treatment multifunctional multi-way valve of the present application when the valve is in the filtering state;

[0027] Figure 9 Fig. 10 is a sectional view of the relative position relationship between the moving valve disc and the valve body of the water treatment multifunctional multi-way valve of the present application when the valve is in the filtering state;

[0028] Figure 10 Fig. 11 is a plan view of the relative position relationship between the moving valve disc and the valve body of the water treatment multifunctional multi-way valve of the present application when the valve is in the backwashing state;

[0029] Figure 11 Fig. 12 is a sectional view of the relative position relationship between the moving valve disc and the valve body of the water treatment multifunctional multi-way valve of the present application when the valve is in the backwashing state;

[0030] Figure 12 Fig. 13 is a plan view of the relative position relationship between the moving valve disc and the valve body of the water treatment multifunctional multi-way valve of the present application when the valve is in the forward washing state;

[0031] Figure 13 Fig. 14 is a sectional view of the relative position relationship between the moving valve disc and the valve body of the water treatment multifunctional multi-way valve of the present application when the valve is in the forward washing state.

[0032] BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 1, valve body; 2, moving valve plate; 3, fixed valve plate; 4, driving device; 5, water inlet; 6, water outlet; 7, blowdown port; 8, outer valve cavity; 9, central blowdown chamber; 10, forward washing chamber; 11, working chamber; 12, first water outlet chamber; 13, second water outlet chamber; 14, water passing chamber; 15, valve body partition beam; 16, first filter element interface; 17, second filter element interface; 18, central groove; 19, water inlet through hole; 20, moving valve plate blind plate; 21, first moving valve plate partition beam; 22, first blind groove; 23, second blind groove; 24, blowdown blind groove; 25, third blind groove; 26, fourth blind groove; 27, third groove; 28, second moving valve plate partition beam; 29, third moving valve plate partition beam; 30, central through hole; 31, working water passing hole; 32, water passing water passing hole; 33, first water outlet through hole; 34, second water outlet through hole; 35, third water outlet through hole; 36, fourth water outlet through hole; 37, first fixed valve plate partition beam; 38, second fixed valve plate partition beam; 39, third fixed valve plate partition beam; 40, fixed valve plate blind plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be known by those skilled in the art that the embodiments described below are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0035] The principles and spirits of the present application will be described in detail below with reference to several representative embodiments of the present application.

[0036] Embodiment 1 of the water treatment multifunctional multi-way valve provided by the present application:

[0037] As shown in the drawings, Figure 1 The water treatment multifunctional multi-way valve comprises a valve body 1, a driving device 4 mounted on the valve body 1, and a fixed valve plate 3 and a moving valve plate 2 mounted in the valve body 1. The driving device 4 is a prior art for driving the moving valve plate 2 to rotate. In this embodiment, the valve body 1, the fixed valve plate 3 and the moving valve plate 2 are all four-part structures.

[0038] Specifically, as shown in the drawings, Figure 2 and Figure 3As shown, the valve body 1 is integrally injection molded. The side wall of the valve body 1 is provided with a water inlet 5, a water outlet 6 and a blowdown port 7. The water inlet 5 and the water outlet 6 are coaxially arranged on the two radial sides of the valve body 1, and the blowdown port 7 is arranged between the water inlet 5 and the water outlet 6. The bottom of the valve body 1 is provided with a first filter element interface 16 and a second filter element interface 17. The first filter element interface 16 is used to communicate with the filter tank body, and the second filter element interface 17 is used to communicate with the center pipe.

[0039] The valve body 1 has an outer valve cavity 8 and an inner valve cavity arranged coaxially. The outer valve cavity 8 communicates with the water inlet 5. The inner valve cavity includes a center blowdown chamber 9, a forward washing chamber 10, a working chamber 11, a backwashing chamber and a water passing chamber 14 arranged sequentially along the circumferential direction of the center blowdown chamber 9 and each occupying an equal angle. The working chamber 11 and the backwashing chamber are oppositely arranged, and the forward washing chamber 10 and the water passing chamber 14 are oppositely arranged. The top surfaces of the forward washing chamber 10, the working chamber 11, the backwashing chamber and the water passing chamber 14 are on the same horizontal plane, and the top of the center blowdown chamber 9 protrudes upward outside the forward washing chamber 10, the working chamber 11, the backwashing chamber and the water passing chamber 14. An arc-shaped valve body separation beam 15 is arranged in the backwashing chamber and extends in the upward and downward directions, separating the backwashing chamber into a first water outlet chamber 12 and a second water outlet chamber 13 with the same central angle and in the form of a fan ring. The first water outlet chamber 12 is adjacent to the center blowdown chamber 9. The water passing chamber 14, the forward washing chamber 10 and the working chamber 11 communicate with the first filter element interface 16. The first water outlet chamber 12 communicates with the second filter element interface 17, the second water outlet chamber 13 communicates with the water outlet 6, and the pipeline at the blowdown port 7 passes through the forward washing chamber 10 and communicates with the center blowdown chamber 9.

[0040] As shown in FIG. 1, the water inlet 5 and the water outlet 6 are coaxially arranged on the two radial sides of the valve body 1, and the blowdown port 7 is arranged between the water inlet 5 and the water outlet 6. Figure 4 and Figure 5As shown, the fixed valve plate 3 has a central through hole 30 and a forward washing water passage, a water passage 32, a backwashing water passage and a working water passage 31 arranged along the circumferential direction of the central through hole 30 and each occupying one-eighth. Among them, the backwashing water passage is provided with an arc-shaped first fixed valve plate separation beam 37 to separate the backwashing water passage into a first water outlet passage 33 and a second water outlet passage 34 with the same central angle. The forward washing water passage is provided with an arc-shaped second fixed valve plate separation beam 38 and a straight third fixed valve plate separation beam 39 to separate the forward washing water passage into a fixed valve plate blind plate 40, a third water outlet passage 35 and a fourth water outlet passage 36 with the same central axis. The first fixed valve plate separation beam 37 and the second fixed valve plate separation beam 38 are on the same circle. The first water outlet passage 33 corresponds to and communicates with the first water outlet chamber 12 above and below, the second water outlet passage 34 corresponds to and communicates with the second water outlet chamber 13 above and below, the water passage 32 corresponds to and communicates with the water chamber 14 above and below, the working water passage 31 corresponds to and communicates with the working chamber 11 above and below, and the third water outlet passage 35 and the fourth water outlet passage 36 both correspond to and communicate with the forward washing chamber 10 above and below. The pipeline at the blowdown port 7 passes through the forward washing chamber 10 and communicates with the central blowdown chamber 9. When installed, the central through hole 30 on the fixed valve plate 3 is sleeved outside the central blowdown chamber 9 of the inner valve chamber.

[0041] As shown in Figure 6 and Figure 7 , the moving valve plate 2 has a central groove 18 and a water inlet passage 19, a first groove, a second groove and a third groove 27 arranged along the circumferential direction of the central groove 18 and each occupying one-eighth. The first groove is provided with an arc-shaped first moving valve plate separation beam 21 to separate the first groove into a first blind groove 22 and a second blind groove 23 with the same central angle. The second groove is provided with an arc-shaped second moving valve plate separation beam 28 and a straight third moving valve plate separation beam 29 to separate the second groove into a blowdown blind groove 24, a third blind groove 25 and a fourth blind groove 26 with the same central axis. The first moving valve plate separation beam 21 and the second moving valve plate separation beam 28 are on the same circle, the blowdown blind groove 24 communicates with the central groove 18, the sum of the central angles corresponding to the third blind groove 25 and the blowdown blind groove 24 is equal to the sum of the central angles corresponding to the fixed valve plate blind plate 40 and the third water outlet passage 35, and both are equal to the central angle corresponding to the fourth water outlet passage 36 and the fourth blind groove 26. In this embodiment, the central angle corresponding to the blowdown blind groove 24 is equal to the central angle corresponding to the fixed valve plate blind plate 40, and the central angle corresponding to the third blind groove 25 is the same as the central angle corresponding to the third water outlet passage 35. The water inlet passage 19 is provided with a moving valve plate blind plate 20 capable of covering the second water outlet chamber 13, the second water outlet passage 34 and the fourth water outlet passage 36.

[0042] When the moving valve plate 2 rotates in the valve body 1, it cooperates with the fixed valve plate 3 in the form of end face sealing. The driving device 4 drives the moving valve plate 2 to rotate at different angles, which can realize the filtering, backwashing and forward washing functions of the valve body 1, and the realization of each function is as follows:

[0043] As shown in Figure 8 and Figure 9 , the water treatment multifunctional multi-way valve is in the filter state, at this time the first groove shields the water passing chamber 14 and the water passing through hole 32 in the up-down direction, the third groove 27 shields the entire backwash chamber and the entire backwash through water hole in the up-down direction; the entire second groove shields the entire positive washing chamber 10 and the entire positive washing through water hole in the up-down direction; the working chamber 11, the water inlet through hole 19 and the working through water hole 31 correspond and communicate in the up-down direction; the first water outlet chamber 12 and the first water outlet through hole 33 correspond and communicate in the up-down direction, the second water outlet chamber 13 and the second water outlet through hole 34 correspond and communicate in the up-down direction; the valve disc blind plate 40 corresponds with the blowdown blind groove 24 in the up-down direction to shield the blowdown blind groove 24. At this time, the flow path of raw water is: water inlet 5→ outer valve chamber 8→ water inlet through hole 19→ working through water hole 31→ working chamber 11→ first filter core interface 16→ filter tank body→ center pipe→ second filter core interface 17→ first water outlet chamber 12→ first water outlet through hole 33→ third groove 27→ second water outlet through hole 34→ second water outlet chamber 13→ water outlet 6.

[0044] As shown in Figure 10 and Figure 11 , the water treatment multifunctional multi-way valve is in the backwash state, the moving valve disc 2 is rotated counterclockwise by 180° compared with the filter state, at this time the entire first groove shields the entire positive washing chamber 10 and the positive washing through water hole in the up-down direction, the third groove 27 shields the entire working chamber 11 and the working through water hole 31 in the up-down direction; the moving valve disc blind plate 20 shields the second water outlet chamber 13 and the second water outlet through hole 34 in the up-down direction, the first water outlet chamber 12, the first water outlet through hole 33 and the water inlet through hole 19 correspond and communicate in the up-down direction; the entire second groove shields the water passing chamber 14 and the water passing through hole 32 in the up-down direction. At this time, the flow path of raw water is: water inlet 5→ outer valve chamber 8→ water inlet through hole 19→ first water outlet through hole 33→ first water outlet chamber 12→ second filter core interface 17→ center pipe→ filter tank body→ first filter core interface 16→ water passing chamber 14→ water passing through hole 32→ blowdown blind groove 24→ center blowdown chamber 9→ blowdown port 7.

[0045] As shown in Figure 12 and Figure 13As shown, the water treatment multifunctional multi-way valve is in the forward washing state, the movable valve plate 2 is rotated counterclockwise by 270° compared with the filtering state, at this time the whole first groove shields the working chamber 11 and the working water through hole 31 in the up-down direction, the third groove 27 shields the water passing chamber 14 and the water passing through hole 32 in the up-down direction, the movable valve plate blind plate 20 shields the fourth water outlet through hole 36 in the up-down direction, the fixed valve plate blind plate 40 shields part of the water inlet through hole 19 in the up-down direction, the water inlet through hole 19 is in communication with the third water outlet through hole 35 in the up-down direction;The blowdown blind groove 24 and the third blind groove 25 jointly shield the first water outlet chamber 12 and the first water outlet through hole 33 in the up-down direction, and the fourth blind groove 26 shields the second water outlet chamber 13 and the second water outlet through hole 34 in the up-down direction. At this time, the flow path of raw water is water inlet 5→ outer valve chamber 8→ water inlet through hole 19→ third water outlet through hole 35→ forward washing chamber 10→ first filter element interface 16→ filter tank body→ center tube→ second filter element interface 17→ first water outlet chamber 12→ first water outlet through hole 33→ blowdown blind groove 24→ blowdown chamber 9→ blowdown port 7.

[0046] The water treatment multifunctional multi-way valve of the utility model adopts four-part structure, has more excellent water inlet and outlet and blowdown capacity, can fully utilize the first filter element interface, can reasonably select and design the water inlet position of the movable valve plate, can realize the diversity of the raw water flow path in addition to meeting normal filtering, backwashing and forward washing functions.

[0047] The utility model provides a water treatment multifunctional multi-way valve's embodiment 2:

[0048] The difference between the embodiment 1 mainly lies in: in the embodiment 1, the central angle corresponding to the blowdown blind groove is equal to the central angle corresponding to the fixed valve plate blind plate, the central angle corresponding to the third blind groove is equal to the central angle corresponding to the third water outlet through hole;And the central angle corresponding to the blowdown blind groove is greater than the central angle corresponding to the third blind groove. In this embodiment, the central angle corresponding to the blowdown blind groove is equal to the central angle corresponding to the third blind groove, of course, in other embodiments, the central angle corresponding to the blowdown blind groove can also be less than the central angle corresponding to the third blind groove. Only need to satisfy that the sum of the central angle corresponding to the third blind groove and the blowdown blind groove is equal to the sum of the central angle corresponding to the fixed valve plate blind plate and the third water outlet through hole.

[0049] The utility model provides a water treatment multifunctional multi-way valve's embodiment 3:

[0050] The difference between the embodiment and the embodiment 1 is that in the embodiment 1, the second fixed valve plate separation beam and the third fixed valve plate separation beam are arranged in the positive washing water passing hole, and the third water outlet through hole and the fourth water outlet through hole are communicated with the positive washing chamber upward and downward. In the embodiment, the second fixed valve plate separation beam and the third fixed valve plate separation beam are arranged in the working water passing hole, and the third water outlet through hole and the fourth water outlet through hole are communicated with the working chamber upward and downward. Of course, in other embodiments, the second fixed valve plate separation beam and the third fixed valve plate separation beam can also be arranged in the water passing water passing hole.

[0051] It should be noted that the above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multifunctional multi-way valve for water treatment, comprising a valve body and a moving valve plate and a fixed valve plate installed in the valve body, the valve body being provided with a water inlet, a water outlet, a blowdown outlet, a first filter core interface and a second filter core interface, the first filter core interface being used for communication with a filter tank body, and the second filter core interface being used for communication with a central pipe, characterized in that the valve body, the moving valve plate and the fixed valve plate are all four-part structures. The valve body, the moving valve plate and the fixed valve plate are all four-part structures. The valve body has an outer valve cavity and an inner valve cavity, the outer valve cavity being communicated with the water inlet, and the inner valve cavity comprising a central blowdown chamber communicated with the blowdown outlet, and a working chamber, a water passing chamber, a backwashing chamber and a forward washing chamber each occupying an equal angle along the circumferential direction of the central blowdown chamber; the backwashing chamber is provided with a valve body separation beam to separate the backwashing chamber into a first water outlet chamber and a second water outlet chamber with the same central angle, the water passing chamber, the forward washing chamber and the working chamber are all communicated with the first filter core interface, the first water outlet chamber is communicated with the second filter core interface, and the second water outlet chamber is communicated with the water outlet. The fixed valve plate is provided with a central through hole and a working water passing hole, a water passing water passing hole, a backwashing water passing hole and a forward washing water passing hole each occupying an equal angle along the circumferential direction of the central through hole, the backwashing water passing hole is provided with an arc-shaped first fixed valve plate separation beam to separate the backwashing water passing hole into a first water outlet hole and a second water outlet hole with the same central angle; the first water outlet hole is correspondingly communicated with the first water outlet chamber, the second water outlet hole is correspondingly communicated with the second water outlet chamber, the water passing water passing hole is correspondingly communicated with the water passing chamber, the working water passing hole is correspondingly communicated with the working chamber, and the forward washing water passing hole is correspondingly communicated with the forward washing chamber; one of the water passing water passing hole, the working water passing hole and the forward washing water passing hole is provided with an arc-shaped second fixed valve plate separation beam and a straight third fixed valve plate separation beam to separate the water passing hole into a fixed valve plate blind plate, a third water outlet hole and a fourth water outlet hole with the same central axis. The moving valve plate is provided with a central groove and a water inlet hole, a first groove, a second groove and a third groove each occupying an equal angle along the circumferential direction of the central groove; one of the first groove, the second groove and the third groove is provided with an arc-shaped first moving valve plate separation beam to separate the groove into a first blind groove and a second blind groove with the same central angle, one of the first groove, the second groove and the third groove is provided with an arc-shaped second moving valve plate separation beam and a straight third moving valve plate separation beam to separate the groove into a blowdown blind groove, a third blind groove and a fourth blind groove with the same central axis; the blowdown blind groove is communicated with the central groove, the sum of the central angles corresponding to the third blind groove and the blowdown blind groove is equal to the sum of the central angles corresponding to the fixed valve plate blind plate and the third water outlet hole, and is equal to the central angles corresponding to the fourth water outlet hole and the fourth blind groove; the water inlet hole is provided with a moving valve plate blind plate capable of covering the second water outlet chamber and the fourth water outlet hole.

2. The water treatment multifunctional multi-way valve according to claim 1, characterized in that, The second fixed valve plate separation beam and the third fixed valve plate separation beam are arranged in the forward washing water passing hole, the third water outlet hole and the fourth water outlet hole are both communicated with the forward washing chamber, a pipeline at the blowdown outlet passes through the forward washing chamber and is communicated with the central blowdown chamber; the first moving valve plate separation beam is arranged in the first groove, and the second moving valve plate separation beam and the third moving valve plate separation beam are both arranged in the second groove.

3. The water treatment multifunctional multi-way valve according to claim 2, characterized in that, The top of the working chamber, the water passing chamber, the backwashing chamber and the forward washing chamber are flush, the top of the center pollution discharging chamber is convex upward outside the working chamber, and the center through hole is sleeved outside the center pollution discharging chamber.

4. The multifunctional multi-way valve for water treatment according to any one of claims 1 to 3, characterized in that, The central angle corresponding to the pollution discharging blind groove is equal to the central angle corresponding to the valve plate blind plate, and the central angle corresponding to the third blind groove is equal to the central angle corresponding to the third water outlet through hole.

5. The water treatment multifunctional multi-way valve according to claim 4, characterized in that, The central angle corresponding to the pollution discharging blind groove is not less than the central angle corresponding to the third blind groove.

6. The multifunctional multi-way valve for water treatment according to any one of claims 1 to 3, characterized in that, The valve body is an integral molding structure.

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