Bypass valve and water treatment equipment

Abstract

The utility model discloses a bypass valve and water treatment equipment, the bypass valve comprises a valve body and a piston, the valve body is provided with a first inner cavity, a water inlet, a first water outlet and a second water outlet, and the water inlet, the first water outlet and the second water outlet are all communicated with the first inner cavity; the piston is arranged in the first inner cavity and connected with the inner side wall of the valve body in a sealed mode. The piston is configured to move in the first inner cavity in the axial direction, so that the bypass valve has a water supply mode, a water mixing mode, a bypass mode and a closing mode; when the bypass valve is in a water supply mode, the water inlet is communicated with the first water outlet; when the bypass valve is in the water mixing mode, the water inlet is communicated with the first water outlet and the second water outlet; when the bypass valve is in the bypass mode, the water inlet is communicated with the second water outlet; when the bypass valve is in the closed mode, the water inlet is closed. The piston is arranged and can move in the valve body to switch multiple working modes, multiple purposes of one valve are achieved, the mechanical structure is effectively simplified, and follow-up water path maintenance is facilitated.

Description

Technical Field

[0001] This application belongs to the field of water treatment technology, specifically relating to a bypass valve and water treatment equipment. Background Technology

[0002] In water treatment processes, it is usually necessary for staff to operate bypass valves on-site to achieve water bypass. However, this type of bypass valve has a single function, only enabling water bypass, which is not conducive to simplifying the water treatment system structure or system maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide a bypass valve, which aims to solve the problem that the existing bypass valves have only one function, which can only realize water bypass, which is not conducive to the simplification of water system structure and system maintenance; another purpose of this application is to provide a water treatment device.

[0004] Technical solution: A bypass valve according to an embodiment of this application includes:

[0005] The valve body has a first inner cavity, an inlet, a first outlet, and a second outlet; the inlet, the first outlet, and the second outlet are all connected to the first inner cavity.

[0006] A piston is disposed within the first inner cavity and is sealed to the inner wall of the valve body; the piston is configured to move axially within the first inner cavity to enable the bypass valve to have a water supply mode, a water mixing mode, a bypass mode, and a shut-off mode.

[0007] When the bypass valve is in the water supply mode, the inlet is connected to the first outlet;

[0008] When the bypass valve is in the mixing mode, the inlet is connected to the first outlet and the second outlet;

[0009] When the bypass valve is in the bypass mode, the inlet is connected to the second outlet;

[0010] When the bypass valve is in the closed mode, the inlet is closed.

[0011] In some embodiments, the piston has an annular channel and a through hole, the annular channel being disposed on the outer side wall of the piston, and the through hole penetrating the piston along the axial direction and communicating with the first inner cavity;

[0012] When the bypass valve is in the water supply mode, the inlet is connected to the annular channel and the first outlet;

[0013] When the bypass valve is in the bypass mode, the valve body covers the annular channel, and the inlet is connected to the through hole, the first inner cavity, and the second outlet.

[0014] When the bypass valve is in the closed mode, the piston seals the inlet.

[0015] In some embodiments,

[0016] The valve body has an annular first exchange channel and a second exchange channel. The first exchange channel is connected to the water inlet and the first inner cavity, and the second exchange channel is connected to the water outlet and the first inner cavity.

[0017] When the bypass valve is in the water supply mode, the inlet is connected to the first converter channel, the annular channel and the first outlet;

[0018] When the bypass valve is in the mixing mode, the inlet is connected to the annular channel, the annular channel is connected to the first exchange channel, the second exchange channel and the first outlet, and the second exchange channel is connected to the second outlet.

[0019] When the bypass valve is in the bypass mode, the valve body covers the annular channel, and the inlet is connected to the through hole, the first inner cavity, and the second outlet.

[0020] When the bypass valve is in the closed mode, the piston seals the inlet.

[0021] In some embodiments, the bypass valve further includes a grille assembly disposed within the first inner cavity and sealed to the inner wall of the valve body; the grille assembly is disposed around the outer periphery of the piston and sealed to the outer wall of the piston, and the piston is movable within the grille assembly.

[0022] In some embodiments, the grille assembly includes:

[0023] A first grille is disposed on the side of the first converter channel away from the second converter channel along the axial direction, and the first grille is sealed to the inner wall of the valve body;

[0024] The second grille is disposed between the first exchange channel and the second exchange channel and is connected to the first grille; the second grille is sealed to the inner wall of the valve body;

[0025] The third grille is disposed on the side of the second converter channel away from the first converter channel along the axial direction, and the third grille is sealed to the inner wall of the valve body;

[0026] When the bypass valve is in the water supply mode, the first grille and the third grille are sealed to the piston; the orthographic projection of the second grille on the outer side wall of the piston is located in the annular channel and is spaced apart from the piston.

[0027] When the bypass valve is in the mixing mode, the first grille is sealed to the piston, the orthographic projection of the second grille on the outer side wall of the piston is located in the annular channel, and the second grille and the third grille are spaced apart from the piston;

[0028] When the bypass valve is in the bypass mode, the first grille is spaced apart from the piston, and the second and third grilles are sealed to the piston.

[0029] When the bypass valve is in the closed mode, the first grille and the second grille are sealed to the piston.

[0030] In some embodiments, the grille assembly further includes a fourth grille disposed on the side of the third grille away from the second converter channel along the axial direction, and the fourth grille is sealed to the inner wall of the valve body; when the bypass valve is in the bypass mode, the fourth grille is sealed to the piston.

[0031] In some embodiments,

[0032] The valve body has a mounting port, which is arranged opposite to the second water outlet along the axial direction and communicates with the first inner cavity;

[0033] The bypass valve includes an end plug, which is sealed to the valve body and covers the mounting port.

[0034] The grille assembly further includes a first retaining ring and a second retaining ring. The first retaining ring is connected to the side of the first grille away from the second grille and abuts against the end plug. The second retaining ring is connected to the side of the fourth grille away from the third grille and abuts against the valve body.

[0035] In some embodiments, the piston includes:

[0036] First paragraph;

[0037] The second section is connected to the side of the first section near the second outlet, and the outer diameter of the second section is smaller than that of the first section.

[0038] The third segment is connected to the side of the second segment away from the first segment, and the outer diameter of the third segment is equal to the outer diameter of the first segment. The first segment, the second segment, and the third segment form the annular channel.

[0039] Along the axial direction, the first segment has a dimension of A mm, the second segment has a dimension of B mm, the third segment has a dimension of C mm, the first commutation channel has a dimension of D mm, the second commutation channel has a dimension of E mm, the first inner cavity has a dimension of F mm, and the bypass valve satisfies at least one of the following characteristics:

[0040] a) A+B+C+D<F;

[0041] b) A > D;

[0042] c) A > E;

[0043] d)E>C.

[0044] In some embodiments, the bypass valve further includes:

[0045] A drive assembly, the output end of which is movably inserted into the end plug and connected to the piston;

[0046] The control component is electrically connected to the drive component.

[0047] In some embodiments, the piston has a second inner cavity extending through the side of the piston facing the second outlet, and the second inner cavity communicates with the through hole and the first inner cavity respectively.

[0048] Accordingly, the water treatment equipment described in this application includes a water softener and a bypass valve as described in any of the foregoing embodiments, wherein the first outlet is connected to the inlet of the water softener and the second outlet is connected to the outlet of the water softener.

[0049] Beneficial Effects: Compared with the prior art, a bypass valve according to an embodiment of this application includes a valve body and a piston. The valve body has a first inner cavity, an inlet, a first outlet, and a second outlet, all of which are connected to the first inner cavity. The piston is disposed within the first inner cavity and is sealed to the inner wall of the valve body. The piston is configured to move axially within the first inner cavity, enabling the bypass valve to have a water supply mode, a mixing mode, a bypass mode, and a closing mode. When the bypass valve is in the water supply mode, the inlet is connected to the first outlet; when the bypass valve is in the mixing mode, the inlet is connected to both the first and second outlets; when the bypass valve is in the bypass mode, the inlet is connected to the second outlet; and when the bypass valve is in the closing mode, the inlet is closed. This application achieves multiple uses for a single valve by allowing the piston to move within the valve body to switch between multiple operating modes, effectively simplifying the mechanical structure and facilitating subsequent water circuit maintenance.

[0050] Compared with the prior art, a water treatment device according to an embodiment of this application includes a water softener and a bypass valve as described in any of the foregoing embodiments. A first outlet is connected to the inlet of the water softener, and a second outlet is connected to the outlet of the water softener. It is understood that the water treatment device of this application includes all the technical features and effects of the aforementioned bypass valve, which will not be repeated here. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the overall structure of a bypass valve according to an embodiment of this application;

[0053] Figure 2 This is a schematic diagram of the piston structure of a bypass valve according to an embodiment of this application;

[0054] Figure 3 This is a schematic diagram of the valve body of a bypass valve according to an embodiment of this application;

[0055] Figure 4 This is a schematic diagram of a bypass valve in water supply mode according to an embodiment of this application;

[0056] Figure 5 This is a schematic diagram of a bypass valve in mixing mode according to an embodiment of this application;

[0057] Figure 6 This is a schematic diagram of a bypass valve in bypass mode according to an embodiment of this application;

[0058] Figure 7 This is a schematic diagram of a bypass valve in the closed mode according to an embodiment of this application.

[0059] Reference numerals: 1. Valve body; 11. First inner cavity; 12. Inlet; 13. First outlet; 14. Second outlet; 15. First exchange channel; 16. Second exchange channel; 17. Mounting port; 2. Piston; 21. Annular channel; 22. Through hole; 23. First section; 24. Second section; 25. Third section; 26. Second inner cavity; 3. Grille assembly; 31. First grille; 32. Second grille; 33. Third grille; 34. Fourth grille; 35. First retaining ring; 36. Second retaining ring; 4. End plug; 5. Drive assembly; 51. Output end; 6. Control assembly; 7. Softener; X, Axial direction. Detailed Implementation

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0061] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. In the description of this application, "perpendicular" means completely perpendicular to 90° or almost completely perpendicular, for example, the range of included angles from 80° to 100° is considered perpendicular. Similarly, "parallel" means completely parallel or almost completely parallel, for example, the range of completely parallel angles from 10° is considered parallel.

[0062] Please refer to Figures 1-7An embodiment of this application provides a bypass valve, comprising a valve body 1 and a piston 2. The valve body 1 has a first inner cavity 11, an inlet 12, a first outlet 13, and a second outlet 14, all of which are connected to the first inner cavity 11. The piston 2 is disposed within the first inner cavity 11 and is sealed to the inner wall of the valve body 1. The piston 2 is configured to move axially X within the first inner cavity 11, thereby enabling the bypass valve to have a water supply mode, a mixing mode, a bypass mode, and a closing mode. When the bypass valve is in the water supply mode, the inlet 12 is connected to the first outlet 13. When the bypass valve is in the mixing mode, the inlet 12 is connected to both the first outlet 13 and the second outlet 14. When the bypass valve is in the bypass mode, the inlet 12 is connected to the second outlet 14. When the bypass valve is in the closing mode, the inlet 12 is closed.

[0063] In this embodiment, by setting the piston 2 to cooperate with the valve body 1, and setting the piston 2 to move in the first cavity of the valve body 1, it can realize the subsequent water supply and closure, as well as the bypass of the water circuit, realizing the multi-purpose use of one valve, effectively simplifying the mechanical structure of the water circuit system, and facilitating the subsequent maintenance of the water circuit system.

[0064] In this embodiment, the first outlet 13 can be used to connect to the control valve inlet of the water softener 7. The raw water output through the first outlet 13 can enter the water softener 7 for softening and then flow out through the outlet of the water softener 7, thus achieving water softening. The second outlet 14 directly outputs raw water without further treatment. Therefore, in this embodiment, when the bypass valve is in supply mode, the raw water input from the inlet 12 only reaches the first outlet 13, is processed by the water softener 7, and is then output for use. When the bypass valve is in bypass mode, the raw water input from the inlet 12 does not reach the first outlet 13 but directly reaches the second outlet 14, achieving bypass of the water supply path. In this case, the water output from the water treatment equipment is still raw water, directly used in subsequent processes. When the bypass valve is in the closed mode, the raw water input to inlet 12 is directly cut off. This allows for maintenance, repair, and replacement of downstream pipelines and equipment, directly replacing the original on / off valve in the water circuit. This integration of the on / off valve and bypass valve achieves multiple uses with a single valve, effectively simplifying the water system structure and making operation and control more convenient. In other words, the embodiments of this application can control the bypass valve to different operating modes according to subsequent water demand to achieve the required water supply effect.

[0065] It should be noted that this application sets the piston 2 to be sealed to the inner wall of the valve body 1 and can move along the axial direction X. At this time, the different bypass valve working modes can be switched directly by adjusting the position of the piston 2. Specifically, when the piston 2 is adjusted to seal and block the inlet 12, the bypass valve is in the closed mode; when the piston 2 is adjusted to connect the inlet 12 with the first outlet 13 and the second outlet 14 is closed by sealing the side wall of the valve body 1 near the second outlet 14, the bypass valve is in the water supply mode, which is the normal water softening mode; when the piston 2 is adjusted to seal the first outlet 13, the first outlet 13 is closed, and the inlet 12 can connect with the second outlet 14, the bypass valve is in the bypass mode.

[0066] Please refer to Figures 1-7 In some embodiments, the piston 2 has an annular channel 21 and a through hole 22. The annular channel 21 is disposed on the outer side wall of the piston 2, and the through hole 22 penetrates the piston 2 along the axial direction X and communicates with the first inner cavity 11. When the bypass valve is in the water supply mode, the water inlet 12 is connected to the annular channel 21 and the first water outlet 13. When the bypass valve is in the bypass mode, the valve body 1 covers the annular channel 21, and the water inlet 12 is connected to the through hole 22, the first inner cavity 11, and the second water outlet 14. When the bypass valve is in the closed mode, the piston 2 covers the water inlet 12.

[0067] In this embodiment, by providing an axial through hole 22 and an annular channel 21 recessed along the outer side wall of the piston 2, the bypass valve can switch between water supply mode, bypass mode and shut-off mode when the piston 2 moves along the axial X.

[0068] Specifically, when piston 2 moves to a position where inlet 12 connects to annular channel 21 and annular channel 21 connects to first outlet 13, piston 2 is sealed to the inner wall of valve body 1 on the side of inlet 12 away from outlet. At this time, through hole 22 cannot connect to inlet 12 through first inner cavity 11, and bypass valve enters water supply mode. At this time, raw water can pass through inlet 12 and annular channel 21 and flow out from first outlet 13, entering downstream water treatment structure for water treatment. When piston 2 moves to a position where inlet 12 connects to first inner cavity 11, and first inner cavity 11 connects to through hole 22 and second outlet 14, piston 2 is sealed to the inner wall of valve body 1 around first outlet 13. At this time, first outlet 13 is closed, bypass valve enters bypass mode, and raw water input through inlet 12 flows through first inner cavity 11, through hole 22 and second outlet 14, realizing direct bypass output of raw water. When piston 2 moves to a sealing connection with the inner wall of valve body 1 around inlet 12, the bypass valve enters the closed mode and inlet 12 is closed.

[0069] Please refer to Figures 1-7 In some embodiments, the valve body 1 has an annular first exchange channel 15, which is connected to the inlet 12 and the first inner cavity 11. When the bypass valve is in the water supply mode, the inlet 12 is connected to the first exchange channel 15, the annular channel 21 and the first outlet 13. When the bypass valve is in the bypass mode, the valve body 1 covers the annular channel 21, and the inlet 12 is connected to the through hole 22, the first inner cavity 11 and the second outlet 14. When the bypass valve is in the closed mode, the piston 2 covers the inlet 12.

[0070] In this embodiment, by setting an annular first exchange channel 15, when the inlet 12 is connected to the annular channel 21, the raw water flowing into the small-diameter inlet 12 can be injected into the annular first exchange channel 15. The connection between the annular first exchange channel 15 and the annular channel 21 creates a larger flow diameter, thus facilitating efficient water flow. At this time, when the bypass valve enters the water supply mode, the annular first exchange channel 15 can effectively increase the flow rate of the injected raw water, facilitating rapid water supply. Simultaneously, the setting of the first exchange channel 15 provides a larger buffer space for the water flow, reducing the impact force of the water flow on the piston 2, thereby effectively ensuring the service life of the piston 2.

[0071] Please refer to Figures 1-7 In some embodiments, the valve body 1 also has an annular second flow exchange channel 16, which is connected to the first inner cavity 11 and the first outlet 13; the bypass valve also has a mixing mode, in which the inlet 12 is connected to the annular channel 21, the annular channel 21 is connected to the first flow exchange channel 15, the second flow exchange channel 16 and the first outlet 13 respectively, and the second flow exchange channel 16 is connected to the second outlet 14.

[0072] In this embodiment, the annular second flow-changing channel 16 increases the water flow between the annular channel 21 and the first outlet 13, thus facilitating rapid water outflow. Simultaneously, the second flow-changing channel 16 provides a larger buffer space for the water flow, reducing the impact force of the water flow on the piston 2, thereby effectively ensuring the service life of the piston 2.

[0073] In this embodiment, the bypass valve also has a mixing mode. The mixing mode is used to both output raw water from the first outlet 13 for subsequent water treatment and output raw water directly from the second outlet 14 to the user end. In this mode, the raw water output from the second outlet 14 is untreated. The raw water output from the first outlet 13, after softening or other treatments, mixes with the water output from the second outlet 14 and is then output to the user end. This is the mixing mode. By controlling the proportion of raw water flowing from the second outlet 14, different hardness levels can be achieved.

[0074] It should be noted that when the bypass valve is in the mixing mode, the raw water input from the inlet 12 first reaches the first exchange channel 15, then the annular channel 21, and then enters the second exchange channel 16 after passing through the annular channel 21. The second exchange channel 16 is simultaneously connected to the first outlet 13 and the second outlet 14, thus realizing that the raw water is simultaneously output from two channels and finally mixed to achieve mixing.

[0075] It should be noted that the second exchange channel 16 first flows through the first inner cavity 11 of the piston 2 facing the second outlet 14, and then flows through the first inner cavity 11 to the second outlet 14 to realize the output of raw water.

[0076] It should also be noted that when the bypass valve is in the mixing mode, the piston 2 is sealed to the inner wall of the valve body 1 on the side of the first exchange channel 15 away from the second outlet 14. This can prevent the through hole 22 from communicating with the first exchange channel 15, thus preventing the raw water from being directly output from the through hole 22 to the second outlet 14, thereby avoiding interference with the hardness of the mixed water.

[0077] Please refer to Figure 1 , Figures 4-7 In some embodiments, the bypass valve further includes a grille assembly 3, which is disposed in the first inner cavity 11 and is sealed to the inner wall of the valve body 1; the grille assembly 3 is disposed around the outer periphery of the piston 2 and is sealed to the outer wall of the piston 2, and the piston 2 is movable within the grille assembly 3.

[0078] In this embodiment, by providing a grille assembly 3, a gap is created between the piston 2 and the inner wall of the valve body 1, facilitating water flow between them. Simultaneously, the grille assembly 3 enables a segmented sealing connection between the piston 2 and the inner wall of the valve body 1, facilitating the switching of various operating modes of the bypass valve.

[0079] It should be noted that, in this embodiment, a sealing ring can be provided on the side of the bar screen assembly 3 facing the inner wall of the valve body 1. The sealing ring is compressed and fits against the inner wall of the valve body 1, thereby achieving a connection between the bar screen assembly 3 and the inner wall of the valve body 1. A sealing gasket can be provided on the side of the bar screen assembly 3 facing the piston 2. The sealing gasket fits against the outer surface of the piston 2, thereby achieving a sealed connection between the piston 2 and the bar screen assembly 3. By setting the bar screen assembly 3 to be sealed to both the inner wall of the valve body 1 and the outer wall of the piston 2, uncontrolled flow of raw water within the first inner cavity 11 after input can be prevented, thus avoiding the failure of the bypass valve.

[0080] In some embodiments, the bar assembly 3 includes a first bar 31, a second bar 32, and a third bar 33. The first bar 31 is disposed on the side of the first exchange channel 15 away from the second exchange channel 16 along the axial direction X, and the first bar 31 is sealed to the inner wall of the valve body 1. The second bar 32 is disposed between the first exchange channel 15 and the second exchange channel 16, and is connected to the first bar 31. The second bar 32 is sealed to the inner wall of the valve body 1. The third bar 33 is disposed on the side of the second exchange channel 16 away from the first exchange channel 15 along the axial direction X, and the third bar 33 is sealed to the inner wall of the valve body 1. When the bypass valve is in water supply mode, the first bar... The first grid 31 and the third grid 33 are sealed to the piston 2; the orthographic projection of the second grid 32 on the outer wall of the piston 2 is located in the annular channel 21 and is spaced apart from the piston 2; when the bypass valve is in the mixing mode, the first grid 31 is sealed to the piston 2, the orthographic projection of the second grid 32 on the outer wall of the piston 2 is located in the annular channel 21, and the second grid 32 and the third grid 33 are spaced apart from the piston 2; when the bypass valve is in the bypass mode, the first grid 31 is spaced apart from the piston 2, and the second grid 32 and the third grid 33 are sealed to the piston 2; when the bypass valve is in the closed mode, the first grid 31 and the second grid 32 are sealed to the piston 2.

[0081] In this embodiment, by setting a first grille 31, a second grille 32, and a third grille 33 spaced apart from each other, the distance between the valve body 1 and the piston 2 can be increased, facilitating the flow of raw water in the various channels within the valve body 1. Simultaneously, by controlling the sealing connection between the piston 2 and the first grille 31, the second grille 32, and the third grille 33, the bypass valve can be controlled to operate in different modes.

[0082] Specifically, when the bypass valve is in water supply mode, the first grille 31 and the third grille 33 are sealed to the piston 2. The orthographic projection of the second grille 32 on the outer wall of the piston 2 is located within the annular channel 21 and is spaced apart from the piston 2. At this time, the first exchange channel 15 is not connected to the through hole 22, but is connected to the annular channel 21, which is connected to the first outlet 13, thus enabling water supply to the subsequent water treatment structure.

[0083] When the bypass valve is in the mixing mode, the first grille 31 is sealed to the piston 2, and the projection of the second grille 32 onto the outer wall of the piston 2 is located within the annular channel 21. The second grille 32 and the third grille 33 are spaced apart from the piston 2. At this time, the piston 2 moves a certain distance away from the second outlet 14 along the axial direction X relative to the water supply mode. The inlet 12 is connected to the first exchange channel 15, and the annular channel 21 is simultaneously connected to the first exchange channel 15 and the second exchange channel 16. The second exchange channel 16 is also simultaneously connected to the first inner cavity 11 and the first outlet 13. The first inner cavity 11 is connected to the second outlet 14. In this way, raw water can flow out from the first outlet 13 and the second outlet 14 at the same time, realizing the softening and other treatment of a part of the raw water, while the part is not treated, and then mixed and output.

[0084] When the bypass valve is in bypass mode, the first grille 31 is spaced apart from the piston 2, and the second grille 32 and the third grille 33 are sealed to the piston 2. At this time, the piston 2 moves toward the position close to the second outlet 14, and the piston 2 is sealed to the second grille 32 and the third grille 33, thereby closing the second exchange channel 16 and the first outlet 13. At this time, the inlet 12 is connected to the first exchange channel 15, the first exchange channel 15 is connected to the first inner cavity 11, the first inner cavity 11 is connected to the through hole 22, and the through hole 22 is connected to the second outlet 14, forming that the raw water flows out only from the second outlet 14, thus achieving the bypass of the raw water.

[0085] When the bypass valve is in the closed mode, the first grille 31 and the second grille 32 are sealed to the piston 2. At this time, the piston 2 moves to the end away from the second outlet 14, and the first grille 31 and the second grille 32 are sealed to the piston 2, thus closing the inlet 12 and the first exchange channel 15. The through hole 22 can also not form a passage with the inlet 12, and the raw water cannot flow through the bypass valve, thereby achieving the closure of the bypass valve.

[0086] Please refer to Figure 1 , Figures 4-7 In some embodiments, the grille assembly 3 further includes a fourth grille 34, which is disposed on the side of the third grille 33 away from the second converter channel 16 along the axial direction X. The fourth grille 34 is sealed to the inner wall of the valve body 1. When the bypass valve is in bypass mode, the fourth grille 34 is sealed to the piston 2.

[0087] In this embodiment, a fourth grille 34 is provided to support the piston 2 near the second outlet 14 when the bypass valve is in bypass mode, thereby preventing the piston 2 from deviating from the axial direction X.

[0088] Please refer to Figure 1 and Figure 3In some embodiments, the valve body 1 has a mounting port 17, which is disposed opposite to the second outlet 14 along the axial direction X and communicates with the first inner cavity 11; the bypass valve includes an end plug 4, which is sealed to the valve body 1 and covers the mounting port 17; the bar assembly 3 also includes a first retaining ring 35 and a second retaining ring 36, the first retaining ring 35 is connected to the side of the first bar 31 away from the second bar 32 and abuts against the end plug 4, and the second retaining ring 36 is connected to the side of the fourth bar 34 away from the third bar 33 and abuts against the valve body 1.

[0089] In this embodiment, the mounting port 17 facilitates the installation of the piston 2 and the grille assembly 3 into the first inner cavity 11, enabling the assembly of the bypass valve. The end plug 4 seals the mounting port 17 and, by abutting against the grille assembly 3, fixes the grille assembly 3 along the axial direction X, preventing axial displacement of the grille assembly 3 during piston 2 movement and thus sealing failure. The first retaining ring 35 and the second retaining ring 36 position the first grille 31, the second grille 32, the third grille 33, and the fourth grille 34, preventing axial displacement of the grilles.

[0090] Please refer to Figure 2 and Figure 3 In some embodiments, the piston 2 includes a first section 23, a second section 24, and a third section 25. The second section 24 is connected to the first section 23 on the side near the second outlet 14, and the outer diameter of the second section 24 is smaller than the outer diameter of the first section 23. The third section 25 is connected to the second section 24 on the side away from the first section 23, and the outer diameter of the third section 25 is equal to the outer diameter of the first section 23. The first section 23, the second section 24, and the third section 25 form an annular channel 21. Along the axial direction X, the dimension of the first section 23 is A mm, the dimension of the second section 24 is B mm, the dimension of the third section 25 is C mm, the dimension of the first exchange channel 15 is D mm, the dimension of the second exchange channel 16 is E mm, and the dimension of the first inner cavity 11 is F mm. The bypass valve satisfies at least one of the following characteristics:

[0091] a) A+B+C+D<F;

[0092] b) A > D;

[0093] c) A > E;

[0094] d)E>C.

[0095] In this embodiment, by setting the dimensions of the first segment 23, the second segment 24, the third segment 25 of the piston 2 and the first exchange channel 15 along the axial direction X to be smaller than the dimension of the first inner cavity 11, the piston 2 can move along the axial direction X within the inner cavity and can switch between water supply mode, mixing mode, bypass mode, and shut-off mode. Setting the dimension of the first segment 23 to be larger than the dimension of the first exchange channel 15 ensures that, in the shut-off mode, the piston 2 can effectively cover and seal the first exchange channel 15, thereby shutting off the inlet 12. By setting the dimension of the first segment 23 to be larger than the dimension of the second exchange channel 16, it ensures that, in the bypass mode, the piston 2 can effectively cover and seal the second exchange channel 16, thereby shutting off the first outlet 13. By setting the size of the second exchange channel 16 to be larger than the size of the third section 25, it can be ensured that in the mixing mode, the orthographic projection of the third section 25 on the inner wall of the valve body 1 is located within the second exchange channel 16, and the third section 25 can be connected without sealing to the inner wall of the valve body 1. This allows the second exchange channel 16 to communicate with both the annular channel 21 and the first inner cavity 11, thereby enabling the first outlet 13 and the second outlet 14 to discharge water simultaneously, thus achieving water mixing.

[0096] It should be noted that, in this embodiment, when a grid assembly 3 is provided between the inner wall of the valve body 1 and the outer wall of the piston 2, the size of the first segment 23 is preferably larger than the size between the first grid 31 and the second grid 32, ensuring that the first segment 23 can be simultaneously sealed to both the first grid 31 and the second grid 32. Preferably, the size of the first segment 23 is larger than the size between the second grid 32 and the third grid 33, enabling the first segment 23 to be simultaneously sealed to both the second grid 32 and the third grid 33, thus closing the second exchange channel 16 and consequently closing the first outlet 13. Preferably, the size between the second grid 32 and the third grid 33 is larger than the size of the third segment 25, ensuring that the third segment 25 does not contact both the second grid 32 and the third grid 33, with the second grid 32 opposite to the annular channel 21 and the third segment 25 opposite to the second exchange channel 16.

[0097] Please refer to Figure 1 , Figures 4-7 In some embodiments, the bypass valve further includes a drive assembly 5 and a control assembly 6. The output end 51 of the drive assembly 5 is movably inserted into the end plug 4 and connected to the piston 2. The control assembly 6 is electrically connected to the drive assembly 5.

[0098] In this embodiment, by cooperating with the drive component 5 and the control component 6, the control component 6 can control the drive component 5 to move the piston 2 within the first inner cavity 11, thereby enabling the bypass valve to operate in different modes. The drive component 5 can be a motor, with a screw at the motor output end 51. The rotation of the screw drives the piston 2. The control component 6 can be a programmable controller or a human-machine interface, capable of controlling the drive component 5 to move the piston 2 by inputting a control program. The control component 6 allows for flexible control of the rotation of the drive component 5, resulting in a more flexible movement distance for the piston 2. This enables switching between various operating modes of the bypass valve and, in the mixing mode, allows for adjusting the piston 2's movement within the adjustable range of water hardness, thereby adjusting the mixing ratio and quickly completing the water hardness adjustment test.

[0099] Please refer to Figure 1 and Figure 2 In some embodiments, the piston 2 has a second inner cavity 26 that extends through the side of the piston 2 toward the second outlet 14 and is connected to the through hole 22 and the first inner cavity 11.

[0100] In this embodiment of the application, by providing a second inner cavity 26 inside the piston 2, the weight of the piston 2 can be effectively reduced, the driving difficulty of the piston 2 can be reduced, and the driving cost of the piston 2 can be reduced.

[0101] Compared with the prior art, a water treatment device according to an embodiment of this application includes a water softener 7 and a bypass valve as described in any of the foregoing embodiments, wherein a first outlet 13 is connected to the inlet of the water softener 7 and a second outlet 14 is connected to the outlet of the water softener 7.

[0102] This application enables multiple uses of a single valve by installing a bypass valve within the water treatment equipment, effectively simplifying the structure and operation of the water treatment equipment and facilitating its subsequent maintenance.

[0103] It is understood that the water treatment equipment in this application includes all the technical features and effects of the aforementioned bypass valve, which will not be repeated here.

[0104] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0105] The bypass valve and water treatment equipment provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A bypass valve, characterized in that, include: The valve body (1) has a first inner cavity (11), an inlet (12), a first outlet (13) and a second outlet (14); the inlet (12), the first outlet (13) and the second outlet (14) are all connected to the first inner cavity (11); A piston (2) is disposed in the first inner cavity (11) and is sealed to the inner wall of the valve body (1); the piston (2) is configured to move axially (X) within the first inner cavity (11) so that the bypass valve has a water supply mode, a water mixing mode, a bypass mode and a shut-off mode. When the bypass valve is in the water supply mode, the inlet (12) is connected to the first outlet (13); When the bypass valve is in the mixing mode, the inlet (12) is connected to the first outlet (13) and the second outlet (14); When the bypass valve is in the bypass mode, the inlet (12) is connected to the second outlet (14); When the bypass valve is in the closed mode, the inlet (12) is closed.

2. The bypass valve according to claim 1, characterized in that, The piston (2) has an annular channel (21) and a through hole (22). The annular channel (21) is disposed on the outer side wall of the piston (2). The through hole (22) passes through the piston (2) along the axial direction (X) and communicates with the first inner cavity (11). When the bypass valve is in the water supply mode, the inlet (12) is connected to the annular channel (21) and the first outlet (13); When the bypass valve is in the bypass mode, the valve body (1) covers the annular channel (21), and the inlet (12) is connected to the through hole (22), the first inner cavity (11) and the second outlet (14); When the bypass valve is in the closed mode, the piston (2) seals the inlet (12).

3. The bypass valve according to claim 2, characterized in that, The valve body (1) has an annular first flow exchange channel (15) and a second flow exchange channel (16). The first flow exchange channel (15) is connected to the inlet (12) and the first inner cavity (11), and the second flow exchange channel (16) is connected to the first outlet (13) and the first inner cavity (11). When the bypass valve is in the water supply mode, the inlet (12) is connected to the first exchange channel (15), the annular channel (21) and the first outlet (13); When the bypass valve is in the mixing mode, the inlet (12) is connected to the annular channel (21), the annular channel (21) is connected to the first exchange channel (15), the second exchange channel (16) and the first outlet (13) respectively, and the second exchange channel (16) is connected to the second outlet (14). When the bypass valve is in the bypass mode, the valve body (1) covers the annular channel (21), and the inlet (12) is connected to the through hole (22), the first inner cavity (11) and the second outlet (14); When the bypass valve is in the closed mode, the piston (2) seals the inlet (12).

4. The bypass valve according to claim 3, characterized in that, The bypass valve also includes a grille assembly (3), which is disposed in the first inner cavity (11) and is sealed to the inner wall of the valve body (1); the grille assembly (3) is disposed around the outer periphery of the piston (2) and is sealed to the outer wall of the piston (2), and the piston (2) is movable within the grille assembly (3).

5. The bypass valve according to claim 4, characterized in that, The grille assembly (3) includes: The first grille (31) is disposed on the side of the first converter channel (15) away from the second converter channel (16) along the axial direction (X), and the first grille (31) is sealed to the inner wall of the valve body (1). The second grille (32) is disposed between the first exchange channel (15) and the second exchange channel (16) and is connected to the first grille (31); the second grille (32) is sealed to the inner wall of the valve body (1); The third grille (33) is disposed on the side of the second converter channel (16) away from the first converter channel (15) along the axial direction (X), and the third grille (33) is sealed to the inner wall of the valve body (1). When the bypass valve is in the water supply mode, the first grille (31) and the third grille (33) are sealed to the piston (2); the orthographic projection of the second grille (32) on the outer side wall of the piston (2) is located in the annular channel (21) and is spaced apart from the piston (2); When the bypass valve is in the mixing mode, the first grille (31) is sealed to the piston (2), the orthographic projection of the second grille (32) on the outer side wall of the piston (2) is located in the annular channel (21), and the second grille (32) and the third grille (33) are spaced apart from the piston (2); When the bypass valve is in the bypass mode, the first grille (31) is spaced apart from the piston (2), and the second grille (32) and the third grille (33) are sealed to the piston (2); When the bypass valve is in the closed mode, the first grille (31) and the second grille (32) are sealed to the piston (2).

6. The bypass valve according to claim 5, characterized in that, The grille assembly (3) further includes a fourth grille (34), which is disposed on the side of the third grille (33) away from the second converter channel (16) along the axial direction (X). The fourth grille (34) is sealed to the inner wall of the valve body (1). When the bypass valve is in the bypass mode, the fourth grille (34) is sealed to the piston (2).

7. The bypass valve according to claim 6, characterized in that, The valve body (1) has a mounting port (17), which is arranged opposite to the second outlet (14) along the axial direction (X) and communicates with the first inner cavity (11); The bypass valve includes an end plug (4), which is sealed to the valve body (1) and covers the mounting port (17); The grille assembly (3) further includes a first retaining ring (35) and a second retaining ring (36). The first retaining ring (35) is connected to the side of the first grille (31) away from the second grille (32) and abuts against the end plug (4). The second retaining ring (36) is connected to the side of the fourth grille (34) away from the third grille (33) and abuts against the valve body (1).

8. The bypass valve according to claim 3, characterized in that, The piston (2) comprises: First paragraph (23); The second segment (24) is connected to the side of the first segment (23) near the second outlet (14), and the outer diameter of the second segment (24) is smaller than the outer diameter of the first segment (23); The third segment (25) is connected to the side of the second segment (24) away from the first segment (23). The outer diameter of the third segment (25) is equal to the outer diameter of the first segment (23). The first segment (23), the second segment (24) and the third segment (25) form the annular channel (21). Along the axial direction (X), the first segment (23) has a dimension of A mm, the second segment (24) has a dimension of B mm, the third segment (25) has a dimension of C mm, the first switching channel (15) has a dimension of D mm, the second switching channel (16) has a dimension of E mm, the first inner cavity (11) has a dimension of F mm, and the bypass valve satisfies at least one of the following characteristics: a) A+B+C+D<F; b) A > D; c) A > E; d)E>C.

9. The bypass valve according to claim 7, characterized in that, The bypass valve also includes: The drive assembly (5) has its output end (51) movably inserted into the end plug (4) and connected to the piston (2); The control component (6) is electrically connected to the drive component (5).

10. The bypass valve according to claim 2, characterized in that, The piston (2) has a second inner cavity (26) that extends through the side of the piston (2) facing the second outlet (14) and is connected to the through hole (22) and the first inner cavity (11).

11. A water treatment device, characterized in that, Includes a water softener (7) and a bypass valve as described in any one of claims 1-10, wherein the first outlet (13) is connected to the inlet of the water softener (7) and the second outlet (14) is connected to the outlet of the water softener (7).

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