Resin tank and water softening device

Abstract

The utility model relates to the field of water softening, and provides a resin tank and a water softening device.The water softening tank comprises a first tank body and a second tank body, and the first tank body is provided with a containing cavity and a first opening communicated with the containing cavity; the second tank body is provided with a first end and a second end which are oppositely arranged, the first end covers the first opening, a tank opening is formed in the end face of the second end, and the tank opening is used for communicating the containing cavity with the water path component; the first tank body and the second tank body are fixed through clamping connection between the first opening and the first end. The water distributor is not limited by the size of the tank opening, the water distribution area can cover the cross sectional area of the whole resin tank, the water distribution effect of the water distributor is improved, and the resin regeneration rate and the water production amount are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soft water, in particular to a resin tank and a soft water device. Background Art

[0002] A water softener is a device that uses cation exchange resin to remove calcium and magnesium ions from water, reduce the hardness of raw water, and thus soften hard water. Water softeners are currently widely used in industrial and energy systems and have strong equipment attributes. In household use, the soft water produced by a water softener usually has the effects of reducing scale in water heating equipment such as water heaters, wall-mounted boilers, electric water heaters, and bathrooms, avoiding pipe blockage, reducing the attenuation of heat exchange efficiency of heating equipment, reducing the use of detergents, being more friendly to human skin, and making clothes softer and brighter in color after washing.

[0003] In the related technical field, the strength of the resin tank at the connection position is poor, and the overall strength of the resin tank cannot be guaranteed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a resin tank, which realizes that the water distributor is not set regardless of the size of the tank mouth, and the water distribution area can cover the cross-sectional area of ​​the entire resin tank, thereby improving the water distribution effect of the water distributor, thereby improving the resin regeneration rate and water production, and at the same time, can also improve the strength of the resin tank connection.

[0005] The utility model also provides a water softening device.

[0006] According to the utility model, the resin tank comprises:

[0007] A first tank body, wherein the first tank body has a containing cavity and a first opening communicating with the containing cavity;

[0008] a second tank body, the second tank body having a first end and a second end arranged opposite to each other, the first end cover being arranged at the first opening, and an end surface of the second end being provided with a tank opening, the tank opening being used to connect the accommodating cavity with the water channel component;

[0009] Wherein, the first tank body and the second tank body are fixed by clamping between the first opening and the first end.

[0010] According to one embodiment of the utility model, a fixing piece is further included, a first protrusion is provided on the peripheral side of the first opening, a second protrusion corresponding to the first protrusion is provided on the peripheral wall of the first end, and the fixing piece is clamped with the first protrusion and the second protrusion.

[0011] According to an embodiment of the present utility model, the first protrusion includes a plurality of first protrusions, and the plurality of first protrusions are arranged in a circular array along the circumference of the first opening.

[0012] According to an embodiment of the present invention, the second protrusion includes a plurality of second protrusions, and the plurality of second protrusions are arranged in a ring array along the outer peripheral wall of the first end.

[0013] According to an embodiment of the utility model, the fixing member is a clamp, and a plurality of clamping holes are provided on the peripheral wall of the clamp, the plurality of clamping holes are arranged corresponding to the first protrusion and the second protrusion, and the clamping holes are arranged to be sleeved with the first protrusion and the second protrusion.

[0014] According to an embodiment of the present utility model, the area of ​​the clamping hole is greater than or equal to the sum of the area of ​​the first protrusion and the area of ​​the second protrusion.

[0015] According to an embodiment of the utility model, the fixing member is a clamp, and a plurality of slots are provided on the peripheral wall of the clamp. The plurality of slots are provided corresponding to the first protrusion and the second protrusion, and the slots are clamped with the first protrusion and the second protrusion.

[0016] According to an embodiment of the utility model, a guide bevel is provided on the side of the first protrusion and the second protrusion facing away from each other, and a matching bevel is provided on the side wall of the card slot corresponding to the guide bevel, and the matching bevel is arranged to cooperate with the guide bevel for guiding.

[0017] According to an embodiment of the utility model, a plug-in column is extended from the outer periphery of the first opening toward the second tank body, and a plug-in port is provided on the end of the first end, and the plug-in column is movably plugged with the plug-in port.

[0018] According to an embodiment of the utility model, an annular sealing groove is provided on the peripheral wall of the plug-in column, a sealing member is sleeved in the annular sealing groove, and the sealing member abuts between the groove wall of the annular sealing groove and the inner wall of the plug-in port.

[0019] The utility model also proposes a water softening device, which includes a water channel component and the resin tank, wherein the resin tank includes a first tank body and a second tank body, the first tank body having a accommodating cavity and a first opening connected to the accommodating cavity; the second tank body having a first end and a second end arranged opposite to each other, the first end cover being arranged at the first opening, and a tank opening being arranged on the end surface of the second end, and the tank opening being used to connect the accommodating cavity with the water channel component; wherein the first tank body and the second tank body are fixed by a clamping connection between the first opening and the first end.

[0020] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0021] The present application separates the resin tank into a first tank body and a second tank body. Therefore, the water distributor can be placed in the tank before the two parts of the tank body are connected. The size of the water distributor is not limited by the size of the tank mouth, so that the water distribution effect of the regeneration process is significantly improved, and the resin regeneration rate and water production are increased. At the same time, the first tank body and the second tank body are connected in a snap-fit ​​manner, which can effectively strengthen the connection and fixation between the first tank body and the second tank body, thereby improving the strength of the resin tank connection, thereby enhancing the stability of the overall structure and increasing the service life of the resin tank.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the assembly of a resin tank and a water channel component according to an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 Exploded view of the resin tank and water channel components;

[0026] Figure 3 is a schematic diagram of an assembly of a fixing member and a first protrusion and a second protrusion according to an embodiment;

[0027] Figure 4 It is a schematic diagram of assembling another embodiment of a fixing member, a first protrusion and a second protrusion.

[0028] Reference numerals:

[0029] 10. Resin tank;

[0030] 100, first tank body; 110, first opening; 120, first protrusion; 121, first bump; 130, plug-in column; 131, annular sealing groove;

[0031] 200, second tank body; 210, first end; 211, plug port; 212, second protrusion; 211a, second protrusion; 220, second end;

[0032] 300, fixing member; 310a, clamping hole; 310b, clamping slot;

[0033] 20. Waterway components. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0035] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0037] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] A water softener is a device that uses cation exchange resin to remove calcium and magnesium ions from water, reduce the hardness of raw water, and thus soften hard water. Water softeners are currently widely used in industrial and energy systems and have strong equipment attributes. In household use, the soft water produced by a water softener usually has the effects of reducing scale in water heating equipment such as water heaters, wall-mounted boilers, electric water heaters, and bathrooms, avoiding pipe blockage, reducing the attenuation of heat exchange efficiency of heating equipment, reducing the use of detergents, being more friendly to human skin, and making clothes softer and brighter in color after washing.

[0040] In the relevant technical field, soft water resin tanks usually adopt a threaded connection reduction design, but the water distributor is a post-installation component, and the tank body cannot be inserted into the tank before or during production. Therefore, the upper and lower water distributors can only be smaller than the upper connection port, which is not conducive to improving the water distribution effect and reduces the resin regeneration rate and water production. After the resin tank is separately molded, the strength of the resin tank connection position is poor and the overall strength of the resin tank cannot be guaranteed.

[0041] The utility model provides a resin tank and a water softening device.

[0042] In the embodiment of the present utility model, Figures 1 to 3 As shown, the soft water tank includes a first tank body 100, a second tank body 200 and a fixing member 300. The first tank body 100 has a containing cavity for containing resin and a first opening 110 communicating with the containing cavity, and a first protrusion 120 is provided on the peripheral side of the first opening 110; the second tank body 200 has a first end 210 and a second end 220 arranged opposite to each other, the first end 210 is covered at the first opening 110, and a second protrusion 212 corresponding to the first protrusion 120 is provided on the outer peripheral wall of the first end 210, and a tank opening is provided on the end surface of the second end 220, and the tank opening is used to connect the containing cavity with the water channel member 20; the fixing member 300 is sleeved between the first protrusion 120 and the second protrusion 212, and the fixing member 300 is clamped with the first protrusion 120 and the second protrusion 212.

[0043] The resin tank 10 is generally in the shape of a hollow cylinder, and a receiving cavity is formed inside the resin tank 10, wherein the receiving cavity is the main part of the resin tank 10 and is used to store the resin. The receiving cavity can be designed in different shapes and sizes according to application requirements to adapt to different resin volumes and performance requirements, which are not particularly limited here.

[0044] The resin tank 10 includes a first tank body 100 and a second tank body 200. It is understandable that the accommodating cavity can be separately provided on the first tank body 100, or the accommodating cavity is composed of the inner cavity of the first tank body 100 and the inner cavity of the second tank body 200, which is not specifically limited here.

[0045] This application is described by taking the example of the accommodation cavity being arranged in the first tank body 100. Other embodiments can be implemented with reference to this embodiment. The first tank body 100 is generally arranged in a cylindrical shape with one end open. The opening is the first opening 110, which is used for docking and communicating with the second tank body 200. A first protrusion 120 is arranged on the circumference around the first opening 110. The function of the first protrusion 120 is to realize the clamping connection between the first tank body 100 and the fixing member 300.

[0046] The second tank body 200 has a first end 210 and a second end 220 that are arranged opposite to each other. Specifically, the first end 210 is provided with a second opening that is connected to the first opening 110, and the tank mouth is provided on the end face of the second tank body 200 that is away from the first tank body 100. The tank mouth is used to allow and control the fluid to flow into and out of the accommodating cavity. The size and shape of the tank mouth can be adjusted according to actual needs to optimize the flow properties of the resin. A second protrusion 212 corresponding to the first protrusion 120 is also provided on the outer peripheral wall of the first end 210. The function of the first protrusion 120 is to achieve the clamping connection between the second tank body 200 and the fixing member 300.

[0047] The fixing member 300 is a component used to connect the first tank body 100 and the second tank body 200, and is applied between the first protrusion 120 and the second protrusion 212, and is engaged with them to ensure that the connection of the soft water tank is firm and reliable.

[0048] The present application separates the resin tank 10 into a first tank body 100 and a second tank body 200. Therefore, the water distributor can be placed in the tank before the two parts of the tank body are connected. The size of the water distributor is not limited by the size of the tank mouth, so that the water distribution effect during the regeneration process is significantly improved, and the resin regeneration rate and water production amount are increased; and the first protrusion 120 and the second protrusion 212 are respectively provided on the first tank body 100 and the second tank body 200. Through the clamping between the fixing piece 300 and the first protrusion 120 and the second protrusion 212, the connection and fixation between the first tank body 100 and the second tank body 200 can be effectively strengthened, thereby improving the strength of the connection of the resin tank 10, thereby enhancing the stability of the overall structure, and improving the service life of the resin tank 10.

[0049] Reference Figure 1 and Figure 2 According to an embodiment of the utility model, the first protrusion 120 includes a plurality of first protrusions 121, and the plurality of first protrusions 121 are arranged in an annular array along the circumference of the first opening 110. It can be understood that the first protrusions 121 can be evenly arranged on the circumference of the first opening 110, or can be axially symmetrically or asymmetrically arranged on the circumference of the first opening 110. The first protrusions 121 can be circular or axially flat blocks. In this embodiment, the first protrusions 121 are arranged in a square shape and are evenly arranged along the first opening 110 as an example. The square setting can increase the area of ​​the sleeve fitting between the first protrusions 121 and the fixing member 300, improve the sleeve fitting stability, and the even arrangement can improve the uniformity of the force between the first tank body 100 and the fixing member 300. The first protrusions 121 are arranged along the radial projection of the resin tank 10 to cooperate with the fixing member 300 to limit the axial position of the first tank body 100 and the second tank body 200. At the same time, the arrangement of the plurality of first protrusions 121 also has a certain fault tolerance capability, and even if a protrusion has a problem or is damaged, the other protrusions can still maintain a stable connection, thereby improving the reliability and durability of the entire soft water tank.

[0050] Reference Figure 1 and Figure 2According to an embodiment of the utility model, the second protrusion 212 includes a plurality of second protrusions 211a, and the plurality of second protrusions 211a are arranged in an annular array along the outer peripheral wall of the first end 210. It can be understood that the second protrusions 211a can be evenly arranged on the outer peripheral wall of the first end 210, or can be axially symmetrically or asymmetrically arranged on the outer peripheral wall of the first end 210. The second protrusions 211a can be circular or axially flat blocks. In this embodiment, the second protrusions 211a are arranged in a square shape and are evenly arranged along the first end 210 as an example. The square setting can increase the area of ​​the sleeve fitting between the second protrusions 211a and the fixing member 300, improve the sleeve fitting stability, and the uniform arrangement can improve the uniformity of the force between the second tank body 200 and the fixing member 300. The second protrusions 211a are arranged along the radial projection of the resin tank 10 to cooperate with the fixing member 300 to limit the axial position of the first tank body 100 and the second tank body 200. It should be noted that the first protrusion 121 can be arranged in a staggered manner with the second protrusion 211a, or can be arranged in a mutually aligned manner, and the arrangement is not limited thereto. At the same time, the arrangement of multiple second protrusions 211a also has a certain fault tolerance, and even if one of the protrusions has a problem or is damaged, the other protrusions can still maintain a stable connection, so as to improve the reliability and durability of the entire soft water tank.

[0051] Reference Figures 1 to 3 According to an embodiment of the utility model, the fixing member 300 is a clamp, and a plurality of clamping holes 310a are provided on the peripheral wall of the clamp, and the plurality of clamping holes 310a are provided corresponding to the first protrusion 121 and the second protrusion 211a, and the clamping holes 310a are sleeved with the first protrusion 121 and the second protrusion 211a. It can be understood that the first clamping part and the second clamping part are respectively provided with a plurality of first protrusions 121 and the second protrusion 211a, and the clamp is sleeved on the axial outer periphery of the resin tank 10 in an annular direction, and the clamping holes 310a are provided to facilitate the first protrusion 121 and the second protrusion 211a to radially pass through the clamp, so as to clamp the first protrusion 121 and the second protrusion 211a correspondingly, thereby realizing the axial limitation of the first tank body 100 and the second tank body 200, and the clamp has a screw hole, and the clamp is locked by the screw to prevent the circumferential loosening, and at the same time, the clamp can be a metal steel ring with a thin thickness, which reduces the diameter size of the resin tank 10 after installation.

[0052] Further, according to an embodiment of the utility model, the area of ​​the clamping hole 310a is greater than or equal to the sum of the area of ​​the first protrusion 121 and the area of ​​the second protrusion 211a. It can be understood that when the first protrusion 121 and the second boss are arranged corresponding to each other, in order to facilitate the first protrusion 121 and the second protrusion 211a to conveniently pass through the corresponding clamping hole 310a, so as to realize the clamping between the first protrusion 121 and the second protrusion 211a, the area of ​​the clamping hole 310a is set to be greater than or equal to the sum of the area of ​​the first protrusion 121 and the area of ​​the second protrusion 211a. It can also prevent the problem of being unable to assemble due to assembly or process errors, and facilitate assembly. In this embodiment, in order to prevent the displacement between the first tank body 100 and the second tank body 200 in a fixed state, resulting in a decrease in the sealing of the resin tank 10, the distance between the two sides of the first protrusion block and the second protrusion 211a that are separated from each other is equal to the distance of the clamping hole 310a along the axial direction, so as to ensure the tight buckle between the first protrusion 121 and the second protrusion 211a.

[0053] Reference Figure 4 According to an embodiment of the utility model, the fixing member 300 is a clamp, and a plurality of slots 310b are provided on the peripheral wall of the clamp, and the plurality of slots 310b are provided corresponding to the first protrusion 121 and the second protrusion 211a, and the slots 310b are engaged with the first protrusion 121 and the second protrusion 211a. In this embodiment, by providing a plurality of slots 310b on the peripheral wall of the clamp and making them correspond to the first protrusion 121 and the second protrusion 211a, an interlocking connection between the clamp and the protrusion can be achieved. When the clamp is sleeved onto the first protrusion 121 and the second protrusion 211a, the slots 310b and the protrusions are engaged with each other to form a firm connection to limit the distance between the first tank body 100 and the second tank body 200 in the axial direction.

[0054] Reference Figure 4 According to an embodiment of the utility model, a guide bevel is provided on the side of the first protrusion 121 and the second protrusion 211a that are away from each other, and a matching bevel is provided on the side wall corresponding to the guide bevel of the clamping slot 310b, and the matching bevel is provided with a guiding matching arrangement with the guide bevel. In the present application, a guide bevel is provided on the side of the first protrusion 121 and the second protrusion 211a that are away from each other, and a matching bevel and a guiding matching arrangement are provided on the side wall corresponding to the clamping slot 310b and the guide bevel. When the clamping slot 310b of the clamping hoop contacts the guiding bevel of the first protrusion 121 and the second protrusion 211a, the guiding matching of the matching bevel and the guiding bevel guides the clamping hoop along a predetermined direction. Due to the existence of the matching bevel, the clamping hoop will be acted upon by a guiding force during the installation process, so that it will automatically align and clamp onto the protrusion. In this way, the automatic positioning and clamping of the clamping hoop are realized, and the installation efficiency and accuracy are improved.

[0055] Reference Figure 2According to an embodiment of the utility model, a plug-in column 130 is extended from the outer periphery of the first opening 110 toward the direction of the second tank body 200, and a plug-in interface 211 is provided on the end of the first end 210, and the plug-in column 130 and the plug-in interface 211 are movably plugged in. In this embodiment, the connectivity between the first tank body 100 and the second tank body 200 is enhanced through the cooperation of the plug-in column 130 and the plug-in interface 211. At the same time, it is also convenient for the pre-assembly between the first tank body 100 and the second tank body 200, and for the alignment of the fixing member 300, thereby improving the installation efficiency. In addition, the cooperation design of the plug-in column 130 and the plug-in interface 211 makes the connection part more stable, reduces the risk of loosening or falling off that may occur during use, and improves the stability of the overall structure. At the same time, the movably plug-in setting of the plug-in column 130 and the plug-in interface 211 makes the assembly and disassembly process simple and quick.

[0056] Reference Figure 2 According to an embodiment of the utility model, an annular sealing groove 131 is provided on the peripheral wall of the plug-in column 130, and the sealing member is sleeved in the annular sealing groove 131, and the sealing member abuts between the groove wall of the annular sealing groove 131 and the inner wall of the plug-in port 211. This embodiment greatly enhances the sealing performance of the connection part by providing the annular sealing groove 131 on the peripheral wall of the plug-in column 130 and using the sealing member for interference fit. The leakage of the fluid at the connection part is effectively avoided, and the normal use of the resin tank 10 is ensured. The sealing member is installed in a sleeve-type manner, which facilitates the maintenance and replacement of the sealing member by the user. When the sealing member is worn or damaged, the user can easily remove it and replace it with a new sealing member, thereby extending the service life of the resin tank 10. The interference fit design ensures a tight fit between the sealing member and the plug-in column 130 and the plug-in port 211, and reduces the loosening or displacement that may occur during use. By providing the annular sealing groove 131 and the sealing member on the plug-in column 130 , the use of the traditional fixing method and the connecting member is avoided, and the overall structure and design are simplified.

[0057] The utility model also proposes a water softening device, which includes a water channel component 20, a control valve and the above-mentioned resin tank 10. The specific structure of the resin tank 10 refers to the above-mentioned embodiment. Since the water softening device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0058] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A resin tank, characterized in that: include: A first tank body, wherein the first tank body has a receiving cavity and a first opening communicating with the receiving cavity; a second tank body, the second tank body having a first end and a second end arranged opposite to each other, the first end cover being arranged at the first opening, and an end surface of the second end being provided with a tank opening, the tank opening being used to connect the accommodating cavity with the water channel component; Wherein, the first tank body and the second tank body are fixed by clamping between the first opening and the first end.

2. The resin tank according to claim 1, characterized in that: It also includes a fixing piece, a first protrusion is provided on the peripheral side of the first opening, a second protrusion corresponding to the first protrusion is provided on the outer peripheral wall of the first end, and the fixing piece is clamped with the first protrusion and the second protrusion.

3. The resin tank according to claim 2, characterized in that: The first protrusion includes a plurality of first protrusions, and the plurality of first protrusions are arranged in a circular array along the circumference of the first opening.

4. The resin tank according to claim 3, characterized in that: The second protrusion includes a plurality of second protrusions, and the plurality of second protrusions are arranged in a ring array along the outer peripheral wall of the first end.

5. The resin tank according to claim 3, characterized in that: The fixing member is a clamp, and a plurality of clamping holes are arranged on the peripheral wall of the clamp. The plurality of clamping holes are arranged corresponding to the first protrusion and the second protrusion, and the clamping holes are sleeved with the first protrusion and the second protrusion.

6. The resin tank according to claim 5, characterized in that: The area of ​​the clamping hole is greater than or equal to the sum of the area of ​​the first protrusion and the area of ​​the second protrusion.

7. The resin tank according to claim 3, characterized in that: The fixing member is a clamp, and a plurality of slots are provided on the peripheral wall of the clamp. The plurality of slots are provided corresponding to the first protrusion and the second protrusion, and the slots are clamped with the first protrusion and the second protrusion.

8. The resin tank according to claim 7, characterized in that: A guide slope is provided on the side of the first protrusion and the second protrusion facing away from each other, and a matching slope is provided on the side wall of the clamping slot corresponding to the guide slope, and the matching slope is arranged to cooperate with the guide slope in a guiding manner.

9. The resin tank according to any one of claims 1 to 8, characterized in that: An inserting column is extended from the outer periphery of the first opening toward the direction of the second tank body, and an inserting interface is arranged on the end of the first end. The inserting column is movably inserted into the inserting interface.

10. The resin tank according to claim 9, characterized in that: An annular sealing groove is arranged on the peripheral wall of the plug-in column, a sealing member is sleeved in the annular sealing groove, and the sealing member abuts between the groove wall of the annular sealing groove and the inner wall of the plug-in port.

11. A water softening device, characterized in that: The invention comprises a water channel member and the resin tank according to any one of claims 1 to 10.

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