Bypass valve and water purifying and softening machine comprising same

Abstract

The utility model provides a bypass valve and a water purifying and softening machine comprising the bypass valve. The bypass valve comprises a valve body and a flow guide part, a first water inlet channel, a first water outlet channel, a second water inlet channel and a second water outlet channel are formed in the valve body, the first water inlet channel is communicated with the water purifier, the first water outlet channel is communicated with a user side, the second water inlet channel is communicated with a water source, and the second water outlet channel is communicated with the water softener; a first communication channel and a second communication channel are formed in the flow guide part, and the flow guide part is movably connected to the valve body and used for switching the state of the bypass valve; in the first state, the first water inlet channel and the first water outlet channel communicate with the first communicating channel. The second water inlet channel and the second water outlet channel are both communicated with the second communication channel; and in the second state, the second water inlet channel and the first water outlet channel communicate with the first communicating channel or the second communicating channel. By adopting the structural form, the communication between the water purifier and the water using end and the communication between the water source and the water softener can be realized only through one-time operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bypass valve and contain its net soft water machine. BACKGROUND

[0002] With the improvement of people's life quality, the demand for pure water and soft water is higher and higher. Especially in some high hardness areas, soft water is needed for bathing, washing face, etc., and pure water is used for kitchen cleaning, drinking, etc.

[0003] Whole house water purifier and whole house soft water machine can meet people's whole house water demand. However, both products are directly connected to the user's water main pipe. When the product fails, it may cause the user to be completely unable to use water, or a continuous water leakage accident. Therefore, the current whole house water purifier and whole house soft water machine are processed by setting a bypass valve on the product. When the product fails, the bypass valve is adjusted to cut off the water inlet of the product and connect the user's water pipe, so that the water does not enter the product while ensuring normal water use of the user.

[0004] At present, the existing bypass valve is provided with two adjusting ball valves. If adjustment is needed, both adjusting valves need to be adjusted, and the operation complexity is high. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the existing bypass valve needs to be provided with two adjusting ball valves, which leads to high operation complexity, and provides a bypass valve and a net soft water machine containing the same.

[0006] The utility model solves the above technical problem through the following technical scheme:

[0007] The utility model discloses a bypass valve, the bypass valve is applied to water purifier and soft water machine, the bypass valve includes valve body and flow guide piece, first water inlet channel, first water outlet channel, second water inlet channel and second water outlet channel are set up on the valve body, the first water inlet channel communicates with the water purifier, the first water outlet channel communicates with the user end, the second water inlet channel communicates with the water source, the second water outlet channel communicates with the soft water machine, first communication channel and second communication channel are set up on the flow guide piece, the flow guide piece is movably connected on the valve body and is used for switching the state of the bypass valve,

[0008] In the first state, the first water inlet channel and the first water outlet channel are in communication with the first communication channel, and the second water inlet channel and the second water outlet channel are in communication with the second communication channel.

[0009] In the second state, the second water inlet channel and the first water outlet channel are in communication with the first communication channel or the second communication channel.

[0010] In the present scheme, in the first state, the first water inlet channel is connected with the first water outlet channel through the first communication channel, so that the purified water treated by the water purifier can flow to the user end, meeting the needs of users for high water quality in daily drinking, cooking and the like, and ensuring that users can obtain high-quality drinking water at any time. At the same time, the second water inlet channel is connected with the second water outlet channel through the second communication channel, ensuring that the water source can continuously and stably flow to the water purifier, providing necessary water source support for normal work of the water purifier, so that the water softener can continuously output softened water for use in household washing, laundry and other water use scenarios, effectively improving the use efficiency and water supply stability of the entire water treatment system. When switched to the second state, the second water inlet channel and the first water outlet channel are connected through the first communication channel or the second communication channel, so that in some special cases, such as when the water purifier needs to be maintained or the water softener temporarily does not need to work, the water source originally flowing to the water softener can be diverted to the user end, ensuring that the water use demand of the user end is still met, avoiding water interruption due to equipment failure or maintenance. In addition, when the guide member is switched to the first state, the water purifier and the water use end and the water source and the water softener can be connected at the same time. In other words, by adopting the above structure, the water purifier and the water use end and the water source and the water softener can be connected by only one operation, thereby reducing the complexity of the operation. In addition, when the water softener needs to replace the resin, the guide member can be moved relative to the valve body to switch between the first state and the second state, thereby ensuring that the water in the main water pipe does not enter the water softener, so that only one guide member needs to be rotated to switch between the first state and the second state, which is convenient to operate.

[0011] Preferably, a first port and a second port are respectively formed on the first water inlet channel and the first water outlet channel, and a first communication port and a second communication port are formed on the first communication channel;

[0012] In the first state, the first port and the first communication port are connected, and the second port and the second communication port are connected;

[0013] And / or, a third port and a fourth port are respectively formed on the second water inlet channel and the second water outlet channel, and a third communication port and a fourth communication port are formed on the second communication channel;

[0014] In the first state, the third port and the third communication port are connected, and the fourth port and the fourth communication port are connected.

[0015] In the scheme, when in the first state, the first port is connected with the first communication port, and the second port and the second communication port are connected, ensuring that the purified water treated by the water purifier can flow to the first water outlet channel through the first communication channel, and then to the user end, providing high-quality drinking water for the user.

[0016] The third port and the third communication port are connected, and the fourth port and the fourth communication port are connected, ensuring that the water source can flow to the second communication channel, and then to the second water outlet channel, and finally to the water softener, providing water supply for the normal operation of the water softener.

[0017] Preferably, the first water outlet channel is provided with a second port, the second water inlet channel is provided with a third port, the first communication channel is provided with a first communication port and a second communication port, and the second communication channel is provided with a third communication port and a fourth communication port.

[0018] In the second state, the second port is connected with the first communication port, and the third port is connected with the second communication port.

[0019] Alternatively, in the second state, the second port is connected with the third communication port, and the third port is connected with the fourth communication port.

[0020] In the scheme, water can flow from the second water inlet channel, through the first communication channel, and then flow into the first water outlet channel, and finally flow into the user end. Alternatively, water flows from the second water inlet channel, through the second communication channel, and then flows into the first water outlet channel, and finally flows into the user end. The above structure can meet the special needs of users for water source in special circumstances, such as during maintenance of the water purifier, the water source is directly guided to the user end through the bypass valve.

[0021] Preferably, the flow guide is rotatably connected with the valve body.

[0022] In the scheme, the above structure allows the operator to change the position of the flow guide by manual rotation or with the help of tools, thereby realizing the switching of the bypass valve between different states, simplifying the operation process and reducing the operation difficulty.

[0023] Preferably, the bypass valve further comprises a guide member, both ends of the guide member are connected with the flow guide and the valve body respectively, and the guide member is used to guide the movement of the flow guide relative to the valve body.

[0024] In the scheme, the guide member guides the flow guide to move or rotate smoothly on the valve body, ensuring that the flow guide can accurately reach the preset position when switching between different states, realizing the accurate connection or isolation between channels.

[0025] Preferably, the guide member comprises a slidingly fitted guide portion and sliding portion, one of which is arranged on the valve body and the other of which is arranged on the surface of the flow guide facing the valve body.

[0026] In this scheme, the guide portion and the sliding portion are cooperated to guide the movement of the flow guide relative to the valve body, so that the flow guide can move along the preset path, and the stability and reliability of the movement of the flow guide are improved.

[0027] Preferably, the guide portion comprises a guide groove arranged on the valve body or the flow guide.

[0028] Preferably, the first water inlet channel, the first water outlet channel, the second water inlet channel and the second water outlet channel are not connected with each other; and the first communication channel and the second communication channel are not connected with each other.

[0029] In this scheme, each channel can independently bear the water flow, avoiding the mutual interference and mixing of water flow between different channels, so as to ensure the purity of water quality and the operation efficiency of the system. In the first state, the first water inlet channel and the first water outlet channel are connected through the first communication channel, and the second water inlet channel and the second water outlet channel are connected through the second communication channel. This independent communication mode enables the pure water treated by the water purifier to flow to the user end without any obstruction, and the water softener can also stably receive the water source and perform soft water treatment, without affecting each other and independently operating, thereby improving the stability and reliability of the entire water treatment system.

[0030] Preferably, the flow guide comprises a flow guide portion and a handle, the first communication channel and the second communication channel are arranged on the flow guide portion, one end of the handle is connected with the flow guide portion, and the other end of the handle extends towards the flow guide portion.

[0031] Preferably, the end of the handle away from the flow guide portion is provided with an operation surface.

[0032] In this scheme, the handle is used to operate the flow guide, so that the switching of different states of the bypass valve is realized.

[0033] The utility model discloses a kind of pure soft water machine, the pure soft water machine includes any one of the bypass valve as above, the pure soft water machine includes water purifier and water softener, the water purifier is communicated with the first water inlet channel, and the water softener is communicated with the second water outlet channel.

[0034] In this solution, the aforementioned structural form is adopted, and a bypass valve is applied to the water purifier and softener. In the first state, the first inlet channel and the first outlet channel are connected through the first connecting channel, allowing the purified water from the water purifier to flow to the user, meeting the user's high water quality requirements for daily drinking and cooking, and ensuring that the user can always obtain high-quality drinking water. Simultaneously, the second inlet channel and the second outlet channel are connected through the second connecting channel, ensuring a continuous and stable water supply to the water purifier, providing necessary water support for its normal operation. This allows the softener to continuously produce softened water for household washing, laundry, and other water usage scenarios, effectively improving the efficiency and stability of the entire water treatment system. When switching to the second state, the second inlet channel and the first outlet channel are connected through either the first or second connecting channel. Therefore, in certain special circumstances, such as when the water purifier needs maintenance or the softener is temporarily not in operation, the water originally flowing to the softener can be diverted to the user, ensuring that the user's water needs are still met and avoiding water interruptions due to equipment failure or maintenance. Furthermore, switching the flow guide to the first state simultaneously connects the water purifier to the water user and the water source to the water softener. In other words, this structural design requires only one operation to connect the water purifier to the water user and the water source to the water softener, thus reducing operational complexity. Additionally, when the water softener needs resin replacement, the flow guide's movement relative to the valve body switches between the first and second states, ensuring that water from the main water supply pipe does not enter the water softener. Therefore, switching between the first and second states requires only rotating one flow guide, making it convenient to operate.

[0035] The positive and progressive effects of this utility model are as follows:

[0036] In the first state, the first inlet and outlet channels are connected via a first connecting channel, allowing purified water from the water purifier to flow to the user, meeting the user's high-quality water requirements for daily drinking and cooking, and ensuring that the user can always access high-quality drinking water. Simultaneously, the second inlet and outlet channels are connected via a second connecting channel, ensuring a continuous and stable water supply to the water purifier, providing the necessary water source support for its normal operation. This allows the water softener to continuously produce softened water for household washing, laundry, and other water-using scenarios, effectively improving the efficiency and stability of the entire water treatment system. When switching to the second state, the second inlet and outlet channels are connected via either the first or second connecting channel. This allows, in special circumstances, such as when the water purifier needs maintenance or the water softener is temporarily not in use, the water originally flowing to the water softener can be diverted to the user, ensuring that the user's water needs are still met and avoiding water interruptions due to equipment failure or maintenance. Furthermore, switching the flow guide to the first state simultaneously connects the water purifier to the water user and the water source to the water softener. In other words, this structural design requires only one operation to connect the water purifier to the water user and the water source to the water softener, thus reducing operational complexity. Additionally, when the water softener needs resin replacement, the flow guide's movement relative to the valve body switches between the first and second states, ensuring that water from the main water supply pipe does not enter the water softener. Therefore, switching between the first and second states requires only rotating one flow guide, making it convenient to operate. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the bypass valve in an embodiment of the present invention.

[0038] Figure 2 This is a schematic diagram of the valve body in an embodiment of the present utility model.

[0039] Figure 3 This is a schematic diagram of the flow guide component according to an embodiment of the present utility model.

[0040] Figure 4 This is a cross-sectional structural schematic diagram of the guide component according to an embodiment of the present utility model.

[0041] Figure 5 This is a cross-sectional view of the bypass valve according to an embodiment of the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] Bypass valve 100

[0044] Valve body 1

[0045] First water intake channel 11

[0046] First bite 111

[0047] First water outlet channel 12

[0048] Second bite 121

[0049] Second water inlet channel 13

[0050] Third mouth 131

[0051] Second water outlet channel 14

[0052] Fourth mouth 141

[0053] Flow guide 2

[0054] First connecting channel 21

[0055] First connecting port 211

[0056] Second connecting port 212

[0057] Second connecting channel 22

[0058] Third connecting port 221

[0059] Fourth connecting port 222

[0060] Flow guide 23

[0061] Handle 24

[0062] Rotating part 241

[0063] Connecting part 242

[0064] Operating surface 243

[0065] Guide component 3

[0066] Guiding section 31

[0067] Sliding part 32

[0068] Handle 4

[0069] Connecting piece 5

[0070] Flow sensor 6 Detailed Implementation

[0071] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0072] like Figures 1 to 5As shown, this embodiment provides a bypass valve 100, which is applied to water purifiers and water softeners. The bypass valve 100 includes a valve body 1 and a flow guide 2. The valve body 1 has a first inlet channel 11, a first outlet channel 12, a second inlet channel 13, and a second outlet channel 14. The first inlet channel 11 is connected to the water purifier, the first outlet channel 12 is connected to the user, the second inlet channel 13 is connected to the water source, and the second outlet channel 14 is connected to the water softener. The flow guide 2 has a first connecting channel 21 and a second connecting channel 22. The flow guide 2 is movably connected to the valve body 1 and is used to switch the state of the bypass valve 100. In the first state, both the first inlet channel 11 and the first outlet channel 12 are connected to the first connecting channel 21; both the second inlet channel 13 and the second outlet channel 14 are connected to the second connecting channel 22. In the second state, both the second inlet channel 13 and the first outlet channel 12 are connected to either the first connecting channel 21 or the second connecting channel 22. Specifically, in the first state, the first inlet channel 11 and the first outlet channel 12 are connected through the first connecting channel 21, allowing purified water from the water purifier to flow to the user, meeting the user's high water quality requirements for daily drinking and cooking, and ensuring that the user can always access high-quality drinking water. Simultaneously, the second inlet channel 13 and the second outlet channel 14 are connected through the second connecting channel 22, ensuring a continuous and stable water supply to the water purifier, providing necessary water support for its normal operation. This allows the water softener to continuously produce softened water for household washing, laundry, and other water-using scenarios, effectively improving the efficiency and stability of the entire water treatment system. When switching to the second state, the second inlet channel 13 and the first outlet channel 12 are connected through either the first connecting channel 21 or the second connecting channel 22. This allows, in special circumstances, such as when the water purifier needs maintenance or the water softener is temporarily not in use, the water originally flowing to the water softener can be diverted to the user, ensuring that the user's water needs are still met and avoiding water interruptions due to equipment failure or maintenance. Furthermore, by switching the flow guide 2 to the first state, the water purifier can be connected to the water user and the water source to the water softener simultaneously. In other words, with the above structure, only one operation is needed to connect the water purifier to the water user and the water source to the water softener, thus reducing operational complexity. Additionally, when the water softener needs resin replacement, the flow guide 2 can move relative to the valve body 1, switching between the first and second states. This ensures that water from the main water supply pipe does not enter the water softener, thus requiring only the rotation of the flow guide 2 to switch between the first and second states, making it convenient to operate.

[0073] like Figure 2 and Figure 3As shown, the first water inlet channel 11 and the first water outlet channel 12 are respectively provided with a first port 111 and a second port 121, and the first connecting channel 21 is provided with a first connecting port 211 and a second connecting port 212. In the first state, the first port 111 and the first connecting port 211 are connected, and the second port 121 and the second connecting port 212 are connected. With the above structure, when in the first state, the first port 111 is connected to the first connecting port 211, and the second port 121 and the second connecting port 212 are connected, ensuring that the purified water after the water purifier is treated can flow through the first connecting channel 21 to the first water outlet channel 12, and then to the user end, providing the user with high-quality drinking water.

[0074] like Figure 2 and Figure 3 As shown, the second inlet channel 13 and the second outlet channel 14 are respectively provided with a third port 131 and a fourth port 141, and the second connecting channel 22 is provided with a third connecting port 221 and a fourth connecting port 222. In the first state, the third port 131 and the third connecting port 221 are connected, and the fourth port 141 and the fourth connecting port 222 are connected. With the above structural form, the connection between the third port 131 and the third connecting port 221, and the connection between the fourth port 141 and the fourth connecting port 222, ensures that the water source can flow to the second connecting channel 22, then to the second outlet channel 14, and finally to the water softener, providing a water supply for the normal operation of the water softener.

[0075] like Figure 2 and Figure 3 As shown, the first water outlet channel 12 has a second opening 121, the second water inlet channel 13 has a third opening 131, the first connecting channel 21 has a first connecting port 211 and a second connecting port 212, and the second connecting channel 22 has a third connecting port 221 and a fourth connecting port 222. In the second state, the second opening 121 is connected to the first connecting port 211, and the third opening 131 is connected to the second connecting port 212; or, in the second state, the second opening 121 is connected to the third connecting port 221, and the third opening 131 is connected to the fourth connecting port 222. Specifically, water can flow in from the second water inlet channel 13, pass through the first connecting channel 21, and then flow into the first water outlet channel 12, finally flowing into the user end. Alternatively, water can flow in from the second water inlet channel 13, pass through the second connecting channel 22, and then flow into the first water outlet channel 12, finally flowing into the user end. The above-mentioned structure can meet the special needs of users for water source in special circumstances, such as during water purifier maintenance, the water source can be directly guided to the user end through the bypass valve 100.

[0076] In this embodiment, the flow guide 2 is rotatably connected to the valve body 1. This structural design allows the operator to manually rotate or use tools to change the position of the flow guide 2, thereby enabling the bypass valve 100 to switch between different states, simplifying the operation process and reducing operational difficulty. In other embodiments, the flow guide 2 may also be slidably connected to the valve body 1; the form of the movable connection between the flow guide 2 and the valve body 1 is not limited here.

[0077] like Figure 2 , Figure 3 and Figure 5 As shown, the bypass valve 100 also includes a guide member 3, with its two ends connected to the guide member 2 and the valve body 1, respectively, to guide the movement of the guide member 2 relative to the valve body 1. With this structure, the guide member 3 guides the guide member 2 to move or rotate smoothly on the valve body 1, ensuring that the guide member 2 can accurately reach the preset position when switching between different states, achieving precise connection or isolation between the channels.

[0078] The guide member 3 includes a guide portion 31 and a sliding portion 32 that are slidably engaged. One of the guide portion 31 and the sliding portion 32 is disposed on the valve body 1, and the other is disposed on the surface of the guide member 2 facing the valve body 1. With this structure, the cooperation of the guide portion 31 and the sliding portion 32 can guide the movement of the guide member 2 relative to the valve body 1, allowing the guide member 2 to move along a preset path, thus improving the stability and reliability of the movement of the guide member 2.

[0079] In this embodiment, the flow guide 2 is rotatably connected to the valve body 1, and the guide portion 31 is disposed on the flow guide 2, while the sliding portion 32 is disposed on the valve body 1. The angle range of the sliding portion 32 is the same as the angle that the flow guide 2 can achieve by switching between the first and second states, and limiting members are respectively provided at both ends of the sliding portion 32, so that the guiding portion 31 can be restricted from disengaging from the sliding portion 32 by the limiting members.

[0080] In practical use, the guide portion 31 includes a guide groove formed on the valve body 1 or the flow guide 2. In this embodiment, the guide portion 31 includes a guide groove formed on the valve body 1, and the limiting member is the wall surface of the guide groove.

[0081] In this embodiment, the first inlet channel 11, the first outlet channel 12, the second inlet channel 13, and the second outlet channel 14 are not interconnected; the first connecting channel 21 and the second connecting channel 22 are also not interconnected. This structural configuration allows each channel to independently handle water flow, preventing interference and mixing between different channels, thus ensuring water purity and system efficiency. In the first state, the first inlet channel 11 and the first outlet channel 12 are connected via the first connecting channel 21, while the second inlet channel 13 and the second outlet channel 14 are connected via the second connecting channel 22. This independent connection method allows the purified water from the water purifier to flow unimpeded to the user, while the water softener can stably receive water and perform softening treatment. Both operate independently without affecting each other, improving the stability and reliability of the entire water treatment system.

[0082] like Figure 1 and Figure 5 As shown, the flow guide 2 includes a flow guide portion 23 and a handle 24. A first connecting channel 21 and a second connecting channel 22 are formed on the flow guide portion 23. One end of the handle 24 is connected to the flow guide portion 23, and the other end of the handle 24 extends in the direction of the flow guide portion 23. An operating surface 243 is provided at the end of the handle 24 away from the flow guide portion 23. This structure allows the operator to easily operate the flow guide portion 23 via the handle 24, thereby enabling the switching of different states of the bypass valve 100.

[0083] like Figure 5 As shown, in this embodiment, the bypass valve 100 also includes a handle 4, which is connected to the valve body 1. One end of the handle 24 away from the operating surface 243 passes through the handle 4 and connects to the guide member 2. A connecting piece 5 is provided on the handle 24, allowing for a detachable connection between the handle 24 and the handle 4. When it is not necessary to rotate the guide member 2 via the handle 24, the handle 24 is detachably connected to the handle 4 via the connecting piece 5, preventing accidental contact with the handle 24 that could cause the guide member 2 to rotate. When it is necessary to rotate the guide member 2 via the handle 24, the bolts on the connecting piece 5 and the handle 4 are removed, allowing the handle 24 to rotate relative to the handle 4, thereby enabling the guide member 2 to rotate relative to the valve body 1.

[0084] like Figure 5 As shown, the handle 24 includes a rotating part 241 and a connecting part 242 connected to each other. The operating surface 243 is provided on the rotating part 241. One end of the connecting part 242 is connected to the rotating part 241, and the other end passes through the handle 4 and is connected to the guide part 23.

[0085] In addition, in this embodiment, a flow sensor 6 is provided on the valve body 1, so that the flow rate of the valve body 1 can be detected by the flow sensor 6.

[0086] This embodiment provides a water purifier / softener, which includes a bypass valve 100. The water purifier / softener comprises a water purifier and a water softener. The water purifier is connected to a first inlet channel 11, and the water softener is connected to a second outlet channel 14. Using this structure, the bypass valve 100 is applied to the water purifier / softener. In the first state, the first inlet channel 11 and the first outlet channel 12 are connected through a first connecting channel 21, allowing purified water from the water purifier to flow to the user, meeting the user's high-quality water requirements for daily drinking and cooking, and ensuring that the user can always access high-quality drinking water. Simultaneously, the second inlet channel 13 and the second outlet channel 14 are connected through a second connecting channel 22, ensuring a continuous and stable water supply to the water purifier, providing necessary water support for its normal operation. This allows the water softener to continuously produce softened water for household washing, laundry, and other water-using scenarios, effectively improving the efficiency and stability of the entire water treatment system. When switching to the second state, the second inlet channel 13 and the first outlet channel 12 are connected through the first connecting channel 21 or the second connecting channel 22. This allows water originally flowing to the water softener to be diverted to the user's end in certain special circumstances, such as when the water purifier needs maintenance or the water softener is temporarily not in operation. This ensures that the user's water demand is still met and avoids water interruptions due to equipment failure or maintenance. Furthermore, switching to the first state via the guide member 2 simultaneously connects the water purifier to the user and the water source to the water softener. In other words, this structure requires only one operation to connect the water purifier to the user and the water source to the water softener, reducing operational complexity. Additionally, when the water softener needs resin replacement, the guide member 2 can move relative to the valve body 1, switching between the first and second states. This prevents water from the main water supply pipe from entering the water softener. Switching between the first and second states requires only rotating the guide member 2, making it easy to operate.

[0087] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A bypass valve applied to a water purifier and a water softener, characterized in that, The bypass valve comprises a valve body and a flow guide, the valve body is provided with a first water inlet channel, a first water outlet channel, a second water inlet channel and a second water outlet channel, the first water inlet channel is communicated with the water purifier, the first water outlet channel is communicated with the user end, the second water inlet channel is communicated with the water source, and the second water outlet channel is communicated with the water softener; the flow guide is provided with a first communication channel and a second communication channel, and the flow guide is movably connected to the valve body to switch the state of the bypass valve. In the first state, the first water inlet channel and the first water outlet channel are both communicated with the first communication channel; the second water inlet channel and the second water outlet channel are both communicated with the second communication channel. In the second state, the second water inlet channel and the first water outlet channel are both communicated with the first communication channel or the second communication channel.

2. The bypass valve of claim 1, wherein The first water inlet channel and the first water outlet channel are respectively provided with a first port and a second port, and the first communication channel is provided with a first communication port and a second communication port. In the first state, the first port and the first communication port are communicated, and the second port and the second communication port are communicated. And / or, the second water inlet channel and the second water outlet channel are respectively provided with a third port and a fourth port, and the second communication channel is provided with a third communication port and a fourth communication port. In the first state, the third port and the third communication port are communicated, and the fourth port and the fourth communication port are communicated.

3. The bypass valve of claim 1, wherein The first water outlet channel is provided with a second port, the second water inlet channel is provided with a third port, the first communication channel is provided with a first communication port and a second communication port, and the second communication channel is provided with a third communication port and a fourth communication port. In the second state, the second port is communicated with the first communication port, and the third port is communicated with the second communication port. Or, in the second state, the second port is communicated with the third communication port, and the third port is communicated with the fourth communication port.

4. The bypass valve of claim 1, wherein The flow guide is rotatably connected with the valve body.

5. The bypass valve of claim 1, wherein The bypass valve further comprises a guide, two ends of the guide are respectively connected with the flow guide and the valve body, and the guide provides guidance for the movement of the flow guide relative to the valve body.

6. The bypass valve of claim 5, wherein The guide comprises a slidingly matched guide portion and a sliding portion, one of the guide portion and the sliding portion is arranged on the valve body, and the other is arranged on the surface of the flow guide facing the valve body.

7. The bypass valve of claim 6, wherein The guide portion comprises a guide groove arranged on the valve body or the flow guide.

8. The bypass valve of claim 1, wherein The first water inlet channel, the first water outlet channel, the second water inlet channel and the second water outlet channel are not communicated with each other; the first communication channel and the second communication channel are not communicated with each other.

9. The bypass valve of claim 1, wherein The flow guide comprises a flow guide portion and a handle, the first communication channel and the second communication channel are arranged on the flow guide portion, one end of the handle is connected with the flow guide portion, and the other end of the handle extends towards the flow guide portion; Wherein, the end of the handle away from the flow guide portion is provided with an operation surface.

10. A water softening apparatus, characterized by comprising: The bypass valve as claimed in any one of claims 1-9 is used in a water purifying and softening machine, the water purifying and softening machine comprises a water purifying machine and a water softening machine, the water purifying machine is communicated with the first water inlet channel, and the water softening machine is communicated with the second water outlet channel.

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