Reversing valve body of water softener

Abstract

The utility model provides a water softener reversing valve body which is characterized by comprising a valve shell, a valve element cavity used for installing a valve element is formed in the valve shell, two water openings communicated with the two ends of the valve element cavity respectively and two resin tank connectors communicated with the side wall of the valve element cavity and located on different axial faces are formed in the side wall of the valve shell, and the two resin tank connectors are communicated with the valve element cavity. A water drainage hole and a salt suction hole are coaxially formed in the lower end of the valve element cavity, and a water drainage opening communicated with the water drainage hole and a salt suction opening communicated with the salt suction hole are formed in the bottom of the valve shell; the upper end and / or the lower end of the valve element cavity are / is provided with an annular guide face used for making contact with a valve on the valve element and controlling the valve, and a shaft hole communicated with the valve element cavity and coaxial with the valve element cavity is formed in the top of the valve shell. The reversing valve body of the water softener is compact in structure, reasonable in layout, high in space utilization rate and capable of reducing the size of the whole structure and providing powerful support for miniaturization design of the water softener.

Description

Technical Field

[0001] This utility model relates to a water softener, and more particularly to a reversing valve body for a water softener. Background Technology

[0002] In the current field of water treatment, hard water remains a significant challenge affecting both daily life and industrial production. Hard water, containing higher levels of soluble calcium and magnesium compounds, causes numerous inconveniences in daily life. For example, when used for washing, hard water reacts with detergents like soap to produce insoluble substances, reducing washing effectiveness and potentially leaving stains on clothing, thus shortening its lifespan. In the kitchen, hard water easily forms limescale on kettles, pots, and other cookware, making cleaning difficult and reducing heating efficiency, thus increasing energy consumption. Long-term consumption of hard water may also pose potential threats to human health.

[0003] As people become more aware of water safety, water softeners are gradually entering ordinary households. However, most water softeners on the market are medium to large-sized devices that take up a lot of space and have poor softening effects, making it impossible for many ordinary families to install them.

[0004] As a core component of a water softener, the size of the reversing valve assembly inside the water softener determines the overall size of the water softener. Currently, most water softener reversing valve assemblies adopt a split structure, which uses multiple independent control valves, resulting in an excessively large size. At the same time, this leads to high manufacturing and maintenance costs, which is not conducive to the miniaturization design of household water softeners. Therefore, there is an urgent need to develop a valve structure that is compact, small in size, has good performance, and has low manufacturing and maintenance costs. Utility Model Content

[0005] Technical problems to be solved

[0006] The technical problem to be solved by this utility model is to provide a water softener reversing valve body that is compact in structure, small in size, has good performance, and low manufacturing and maintenance costs.

[0007] Technical solutions to the problem

[0008] This utility model provides a reversing valve body for a water softener, including a valve shell. The valve shell has a valve core cavity 120 formed inside for installing a valve core. The side wall of the valve shell has two water inlets communicating with both ends of the valve core cavity 120, and two resin tank interfaces communicating with the side wall of the valve core cavity and located on different axial planes. The lower end of the valve core cavity 120 has a drain hole 43 and a brine suction hole 44 coaxially arranged. The bottom of the valve shell has a drain outlet 402 communicating with the drain hole 43 and a brine suction outlet 401 communicating with the brine suction hole 44. The upper and / or lower end of the valve core cavity 120 has an annular guide surface for contacting the valve on the valve core and controlling the valve. The top of the valve shell has a shaft hole 30 communicating with and coaxial with the valve core cavity 120.

[0009] Furthermore, the valve housing includes a housing 1 with open ends and an upper cover 3 and a lower cover 4 respectively installed at the two open ends of the housing 1. The housing 1 is provided with an inner cylinder 12, and a valve core cavity 120 with open ends is formed in the inner cylinder 12. There are gaps between the two ends of the inner cylinder 12 and the upper cover 3 and the lower cover 4 to form flow channels. The two water inlets are respectively connected to the two flow channels. The drain hole 43 and the salt suction hole 44 are provided on the lower cover 4, and the shaft hole 30 is provided on the upper cover 3.

[0010] Furthermore, the water outlet includes an inlet 101 that communicates with the upper end of the valve core cavity 120 and an outlet 102 that communicates with the lower end of the valve core cavity 120.

[0011] Furthermore, the two water inlets and the two resin tank interfaces are parallel to each other.

[0012] Furthermore, the upper surface of the lower cover 4 is provided with a coaxial first annular body and a second annular body at its center. The drainage hole 43 is formed in the first annular body, and the salt absorption hole 44 is formed between the first annular body and the second annular body.

[0013] Furthermore, the lower end of the lower cover 4 is provided with a drain pipe communicating with the drain hole 43 and a salt suction pipe communicating with the salt suction hole 44, and the salt suction port 401 and the drain port 402 are respectively provided on the salt suction pipe and the drain pipe.

[0014] Furthermore, both the salt suction pipe and the drain pipe are perpendicular to the axis of the lower cover 4.

[0015] Furthermore, the upper surface of the lower cover 4 is also provided with a third annular body 45 that is coaxial with the second annular body and located outside the second annular body, and an upward-facing first guide surface 46a is provided between the second annular body and the third annular body 45.

[0016] Furthermore, a fourth annular body 33 and a fifth annular body 34 are coaxially arranged at the center of the lower surface of the upper cover 3, and a downward-facing second guide surface 35a is provided between the fourth annular body 33 and the fifth annular body 34.

[0017] Furthermore, the phase difference between the two resin tank interfaces is 60°-75°.

[0018] Furthermore, the two ends of the housing 1 are connected to the upper cover 3 and the lower cover 4 by bolts.

[0019] Furthermore, the bolts are multiple and evenly distributed circumferentially.

[0020] Furthermore, the upper cover 3 and the lower cover 4 include a cover plate, the end of which is provided with an annular protrusion that can be inserted into the open end of the housing 1 and achieve coaxial positioning, and a sealing ring is provided between the annular protrusion and the open end of the housing 1.

[0021] Furthermore, the upper cover 3 includes a circular upper cover plate 31, with first mounting holes 311 evenly distributed around the edge of the upper cover plate 31, and a first annular protrusion 32 at the lower end of the upper cover plate 31 that can be just inserted into the upper open end of the housing 1. The outer wall of the first annular protrusion 32 is provided with a first sealing ring mounting groove 321.

[0022] Furthermore, the lower cover 4 includes a circular lower cover plate 41, with second mounting holes 411 evenly distributed around the edge of the lower cover plate 41. The upper end of the lower cover plate 41 is provided with a second annular protrusion 42 that can be just inserted into the lower open end of the housing 1. The outer wall of the second annular protrusion 42 is provided with a second sealing ring mounting groove 421.

[0023] Furthermore, the housing 1 is cylindrical, and an installation cavity with open ends is formed inside the housing 1. The inner cylinder 12 is disposed in the installation cavity and is coaxial with the housing 1.

[0024] Furthermore, the upper end of the inner cylinder 12 is lower than the upper end of the shell 1, and its lower end is higher than the lower end of the shell 1.

[0025] Beneficial effects

[0026] This utility model relates to a reversing valve body for a water softener. The valve body structure has been optimized and improved, resulting in a more rational layout of the interfaces, increased structural compactness, improved space utilization, and reduced volume, contributing to the miniaturization of the valve body and the water softener. The use of a gap structure to form the flow channel and serve as the inlet and outlet simplifies water circuit connections, reduces manufacturing costs, and ensures good operational reliability. The brine suction hole and drain outlet are located on the lower cover, optimizing the pipeline layout, reducing manufacturing difficulty and costs, and facilitating overall assembly. The guide surfaces are distributed on both the upper and lower covers, improving structural compactness and reducing the overall structural volume, thus contributing to the miniaturization of the water softener. The orientation of each interface is designed to facilitate the overall assembly of the valve body. The valve body is designed for easy pipe connection, disassembly, and daily maintenance. The guide surface, positioned between two annular protrusions, effectively guides the valve core movement, preventing valve body misalignment and ensuring stable valve core operation, thus extending its reliability and stability. The split-type structure design facilitates the processing of each component, reducing processing difficulty and cost while ensuring processing accuracy. It also facilitates assembly and disassembly, making it easy to replace damaged parts and reducing maintenance costs. This utility model's reversing valve body for water softeners features a compact structure, reasonable layout, and high space utilization, reducing the overall structural volume and providing strong support for the miniaturization of water softeners. It improves the overall performance and ease of use of water softeners, ensuring long-term stable operation and meeting the needs of modern families for high efficiency, energy saving, and environmental protection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the reversing valve body of the water softener of this utility model;

[0028] Figure 2 This is a schematic diagram of the reversing valve body of the water softener of this utility model from another angle.

[0029] Figure 3 This is an exploded structural diagram of the reversing valve body of the water softener of this utility model;

[0030] Figure 4 This is a transverse sectional view of the valve body of the reversing valve of the water softener of this utility model;

[0031] Figure 5 This is a longitudinal sectional view of the valve body of the reversing valve of the water softener of this utility model;

[0032] Figure 6 This is another longitudinal sectional view of the valve body of the reversing valve of the water softener of this utility model;

[0033] Figure 7 This is a schematic diagram of the upper cover of the reversing valve body of the water softener of this utility model;

[0034] Figure 8 This is a cross-sectional view of the upper cover of the reversing valve body of the water softener of this utility model;

[0035] Figure 9 This is a schematic diagram of the lower cover of the reversing valve body of the water softener of this utility model;

[0036] Figure 10 This is a cross-sectional view of the lower cover of the reversing valve body of the water softener of this utility model;

[0037] Figure 11 This is another planar sectional view of the lower cover of the reversing valve body of the water softener of this utility model. Detailed Implementation

[0038] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0039] See Figures 1-11 This utility model provides a reversing valve body for a water softener, which serves as a mounting carrier for the valve core. After the valve core is installed, a complete reversing valve assembly is formed, which can realize pipeline reversal and achieve different working modes.

[0040] The reversing valve body includes a valve shell, within which a valve core cavity 120 is formed for mounting the valve core. The valve core is cylindrical and can rotate radially, thereby enabling switching between different water inlets. Therefore, the valve core cavity 120 is also cylindrical. Two water inlets and two resin tank interfaces are provided on the side wall of the valve shell. The two water inlets are respectively connected to both ends of the valve core cavity 120 to realize water inlet and outlet. The two resin tank interfaces are respectively connected to the inlet and outlet ends of the resin tank to realize functions such as soft water production and regeneration, and are connected to the side wall of the valve core cavity. At the same time, the two resin tank interfaces are located on different radial planes, that is, they have a phase difference. In this application, the phase difference between the two resin tank interfaces is 60°-75°, which is beneficial for the rational arrangement of the water inlets of the valve core, improving space utilization and realizing miniaturized design.

[0041] A drain hole 43 and a salt suction hole 44 are provided at the lower end of the valve core cavity 120. The drain hole 43 and the salt suction hole 44 are coaxial with the valve core cavity. Therefore, at least one of them is an annular hole. In this embodiment, the drain hole 43 is a circular hole and the salt suction hole 44 is an annular hole. At the same time, a drain port 402 and a salt suction port 401 are provided at the bottom of the valve body. The drain port 402 is connected to the drain hole 43 and the salt suction port 401 is connected to the salt suction hole 44, thereby forming six different interfaces. By rotating the valve core, the switching between the interfaces can be realized to form different working modes.

[0042] A guide surface is provided at the upper or lower end of the valve core cavity 120. The guide surface is annular, and its end face serves as a working surface. It is used to contact the end of the valve on the valve core to guide the axial movement of the valve, thereby opening or closing it. This enables the water outlets on the valve core to be connected or blocked, achieving communication control between different flow channels. A shaft hole 30 is provided at the top of the valve body. This shaft hole is connected to the valve core cavity 120 and is coaxial with the valve core cavity 120. It is used to allow the drive shaft on the valve core to pass through, thereby driving the valve core in the valve body.

[0043] In this application, the valve housing includes a housing, an upper cover 3, and a lower cover 4. A mounting cavity is formed within the housing. In this embodiment, the housing includes a cylindrical outer housing 11. A cylindrical mounting cavity with open ends is formed within the outer housing 11. An inner cylinder 12 is provided within the mounting cavity. The inner cylinder 12 is cylindrical and coaxial with the housing 1. A valve core cavity 120 is formed within the inner cylinder 12. The valve core cavity 120 is cylindrical, coaxial with the housing 1, and open at both ends. The upper end of the inner cylinder 12 is lower than the upper end of the housing 1, and the lower end of the inner cylinder 12 is higher than the lower end of the housing 1. That is, both ends of the inner cylinder 12 are shorter than the lengths of both ends of the housing, so that both ends of the inner cylinder 12 are located inside the two ends of the mounting cavity.

[0044] The water inlet in this application includes an inlet 101 and an outlet 102. The inlet 101 is connected to the upper end of the valve core cavity 120 but not to the lower end. The outlet 102 is connected to the lower end of the valve core cavity 120 but not to the upper end. Specifically, the inlet 101 is connected to the upper end of the valve core cavity 120 through a first gap 1010, which is the gap between the upper end of the valve core cavity (inner cylinder) and the upper cover. The outlet 102 is connected to the lower end of the valve core cavity 120 through a second gap 1020, which is the gap between the lower end of the valve core cavity 120 (inner cylinder 12) and the lower cover.

[0045] The resin tank interface includes a first resin tank interface 103 and a second resin tank interface 104, both of which are connected to the inner wall of the valve core cavity. The connection points with the valve core cavity are located on different axial surfaces of the valve core cavity. In this application, the two connection points are located on the same radial surface, and there is a certain phase difference between them. That is, the valve core needs to rotate a certain angle to reach the other resin interface from the first resin interface, so as to realize the switching of different water paths. In this embodiment, the center of the valve core cavity is taken as the center, and the phase difference (central angle) between the first resin interface and the second resin interface is 60°-75°. In this application, a first connecting hole 1030 and a second connecting hole 1040 are provided on the side wall of the valve core cavity. The first connecting hole 1030 is connected to the first resin interface, serving as the connection point between the first resin interface and the valve core cavity. The second connecting hole 1040 is connected to the second resin interface, serving as the connection point between the second resin interface and the valve core cavity. The above-mentioned phase difference is the angle difference between the first connecting hole and the second connecting hole.

[0046] To improve structural compactness and facilitate assembly, in this application, the two sprue ports and the two resin tank interfaces are parallel to each other, with the two sprue ports located on one side of the housing and the two resin tank interfaces located on the other side of the housing.

[0047] The upper cover 3 is sealed and installed at the upper open end of the housing (installation cavity), and the lower cover 4 is sealed and installed at the lower open end of the housing (installation cavity), forming a sealed cavity. The valve core cavity is located in the sealed cavity. The two ends of the valve core cavity are open. Since its ends are shorter than the axial length of the installation cavity, there are gaps between the two ends of the valve core cavity 120 and the upper cover 3 and the lower cover 4, which allows water to flow through and form a flow channel. The drain hole 43 and the brine suction hole 44 are provided on the lower cover 4, and the shaft hole 30 is provided on the upper cover 3.

[0048] Both the upper cover 3 and the lower cover 4 include a cover plate. At the end (end face) of the cover plate, there is an annular protrusion with the same cross-sectional shape as the mounting cavity. The annular protrusion can fit into the mounting cavity of the housing, and its outer wall fits against the inner wall of the mounting cavity, thereby achieving coaxial positioning. At the same time, there are corresponding positioning protrusions and positioning grooves between the cover plate and the housing, which can cooperate with each other to achieve radial positioning between the cover plate and the housing. A sealing ring is provided between the annular protrusion and the open end of the housing 1, thereby forming a sealed chamber in the mounting cavity. At the same time, mounting holes are provided on the edges of the upper cover 3 and the lower cover 4, and corresponding screw holes are provided on the two open ends of the housing. The upper cover 3 and the lower cover 4 are fixed to the two ends of the housing by bolts to form a valve body.

[0049] Specifically, the upper cover 3 includes a circular upper cover plate 31. Multiple first mounting holes 311 are evenly distributed circumferentially along the edge of the upper cover plate 31. In this application, multiple lugs are evenly distributed circumferentially along the edge of the upper cover plate 31, and the first mounting holes 311 are formed on the lugs, which serve as connecting parts. A first annular protrusion 32 is provided at the lower end of the upper cover plate 31. The outer diameter of the first annular protrusion 32 is the same as the inner diameter of the mounting cavity, and it can be inserted into the upper open end of the mounting cavity to achieve coaxial positioning. In order to facilitate quick insertion, a chamfer can be provided at the end of the first annular protrusion 32 or the end of the upper open end of the mounting cavity to form an inclined guide surface, thereby improving assembly efficiency. A first sealing ring mounting groove 321 is provided on the outer wall of the first annular protrusion 32. The first sealing ring mounting groove 321 is an annular groove.

[0050] A fourth annular body 33 and a fifth annular body 34 are coaxially arranged at the center of the lower surface of the upper cover 3. The shaft hole is located at the center of the fourth annular body 33, and the inner wall of the fourth annular body 33 serves as the rotation fulcrum of the valve core shaft, which is used to improve the smoothness of the valve core rotation and the running accuracy. A downward-facing second guide surface 35a is provided between the fourth annular body 33 and the fifth annular body 34. The second guide surface 35a is annular, and its lower end face serves as the working surface. It has a certain degree of undulation and is used to guide the axial movement of the valve on the valve core to realize the opening or closing of the valve. There is a reinforcing rib between the first annular protrusion 32 and the fifth annular body 34 of the upper cover 3, which can improve the overall structural strength of the upper cover.

[0051] The lower cover 4 includes a circular lower cover plate 41. Multiple second mounting holes 411 are evenly distributed circumferentially along the edge of the lower cover plate 41. In this application, multiple lugs are evenly distributed circumferentially along the edge of the lower cover plate 41, and the second mounting holes 411 are disposed on these lugs as connecting members to the housing. A second annular protrusion 42 is provided at the upper end of the lower cover plate 41. The outer diameter of the second annular protrusion 42 is the same as the inner diameter of the mounting cavity, allowing it to be inserted into the lower open end of the mounting cavity for coaxial positioning. To facilitate rapid insertion, a chamfer can be provided at the end of the second annular protrusion 42 or the end of the lower open end of the mounting cavity to form an inclined guide surface, thereby improving assembly efficiency. A second sealing ring mounting groove 421 is provided on the outer wall of the second annular protrusion 42 for mounting a sealing ring. The second sealing ring mounting groove 421 is an annular groove structure.

[0052] Meanwhile, a first annular body and a second annular body are coaxially arranged at the center of the upper surface of the lower cover 4. A drain hole 43 is formed in the first annular body. The drain hole 43 is a circular hole. A salt suction hole 44 is formed between the first annular body and the second annular body. The salt suction hole 44 is a circular annular hole. It is used to connect with the circular tube at the lower end of the valve core to realize the pipeline connection. A drain pipe and a salt suction pipe are provided at the lower end of the lower cover 4. The drain pipe is connected to the drain hole 43, and the salt suction pipe is connected to the salt suction hole 44. The salt suction port 401 and the drain port 402 are respectively set on the salt suction pipe and the drain pipe.

[0053] Meanwhile, the aforementioned first or second annular body is connected to the flow channel at the lower end of the valve core, achieving pipeline connection while also serving as a fulcrum for the valve core's rotation, thus improving the valve core's operational stability.

[0054] To facilitate assembly and connection, in this application, the brine suction pipe and the drain pipe are coaxially arranged, both perpendicular to and intersecting the axis of the lower cover 4, and their length direction is parallel to the direction of the inlet (outlet) water inlet, which facilitates assembly inside the water softener.

[0055] Meanwhile, a third annular body 45 is provided on the upper surface of the lower cover 4. The third annular body 45 is coaxial with the second annular body and located outside the second annular body. An upward-facing first guide surface 46a is provided between the second annular body and the third annular body 45. The upper end surface of the first guide surface 46a serves as a working surface and has a certain degree of undulation, which is used to guide the axial movement of another valve on the valve core to realize the opening or closing of the valve.

[0056] This utility model relates to a reversing valve body for a water softener. The valve body structure has been optimized and improved, resulting in a more rational layout of the interfaces, increased structural compactness, improved space utilization, and reduced volume, contributing to the miniaturization of the valve body and the water softener. The use of a gap structure to form the flow channel and serve as the inlet and outlet simplifies water circuit connections, reduces manufacturing costs, and ensures good operational reliability. The brine suction hole and drain outlet are located on the lower cover, optimizing the pipeline layout, reducing manufacturing difficulty and costs, and facilitating overall assembly. The guide surfaces are distributed on both the upper and lower covers, improving structural compactness and reducing the overall structural volume, thus contributing to the miniaturization of the water softener. The orientation of each interface is designed to facilitate the overall assembly of the valve body. The valve body is designed for easy pipe connection, disassembly, and daily maintenance. The guide surface, positioned between two annular protrusions, effectively guides the valve core movement, preventing valve body misalignment and ensuring stable valve core operation, thus extending its reliability and stability. The split-type structure design facilitates the processing of each component, reducing processing difficulty and cost while ensuring processing accuracy. It also facilitates assembly and disassembly, making it easy to replace damaged parts and reducing maintenance costs. This utility model's reversing valve body for water softeners features a compact structure, reasonable layout, and high space utilization, reducing the overall structural volume and providing strong support for the miniaturization of water softeners. It improves the overall performance and ease of use of water softeners, ensuring long-term stable operation and meeting the needs of modern families for high efficiency, energy saving, and environmental protection.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A reversing valve body for a water softener, characterized in that: The valve includes a valve housing, within which a valve core cavity for mounting a valve core is formed. The sidewall of the valve housing has two water inlets communicating with both ends of the valve core cavity, and two resin tank interfaces communicating with the sidewall of the valve core cavity and located on different axial planes. The lower end of the valve core cavity has a drain hole and a brine suction hole coaxially arranged. The bottom of the valve housing has a drain outlet communicating with the drain hole and a brine suction hole communicating with the brine suction hole. The upper and / or lower end of the valve core cavity has an annular guide surface for contacting the valve on the valve core and controlling the valve. The top of the valve housing has a shaft hole communicating with and coaxial with the valve core cavity.

2. The reversing valve body of the water softener as described in claim 1, characterized in that: The valve housing includes a shell with open ends and an upper cover and a lower cover respectively installed at the two open ends of the shell. The shell has an inner cylinder, and a valve core cavity with open ends is formed inside the inner cylinder. There are gaps between the two ends of the inner cylinder and the upper cover and the lower cover to form flow channels. The two water inlets are respectively connected to the two flow channels. The drain hole and the brine suction hole are provided on the lower cover, and the shaft hole is provided on the upper cover.

3. The reversing valve body of the water softener as described in claim 1, characterized in that: The water inlet includes an inlet connected to the upper end of the valve core cavity and an outlet connected to the lower end of the valve core cavity.

4. The reversing valve body of the water softener as described in claim 1, characterized in that: The two water inlets and the two resin tank interfaces are parallel to each other.

5. The reversing valve body of the water softener as described in claim 2, characterized in that: The upper surface of the lower cover is provided with a coaxial first annular body and a second annular body at its center. The drainage hole is formed in the first annular body, and the salt absorption hole is formed between the first annular body and the second annular body.

6. The reversing valve body of the water softener as described in claim 2, characterized in that: The lower end of the lower cover is provided with a drain pipe communicating with the drain hole and a salt suction pipe communicating with the salt suction hole. Both the salt suction pipe and the drain pipe are perpendicular to the axis of the lower cover.

7. The reversing valve body of the water softener as described in claim 5, characterized in that: The upper surface of the lower cover is also provided with a third annular body that is coaxial with the second annular body and located outside the second annular body, and an upward-facing first guide surface is provided between the second annular body and the third annular body.

8. The reversing valve body of the water softener as described in claim 2, characterized in that: The lower surface of the upper cover is provided with a coaxial fourth annular body and a fifth annular body at its center, and a downward-facing second guide surface is provided between the fourth annular body and the fifth annular body.

9. The reversing valve body of the water softener as described in claim 2, characterized in that: The shell is cylindrical, and an installation cavity with open ends is formed inside the shell. The inner cylinder is disposed in the installation cavity and is coaxial with the shell.

10. The reversing valve body of the water softener as described in claim 2, characterized in that: The upper end of the inner cylinder is lower than the upper end of the outer shell, and its lower end is higher than the lower end of the outer shell.

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