Resin tank assembly and water softening device

By designing the snap-on parts and elastic structures in the resin tank assembly, the problem of poor connection strength between the tank and the cover is solved, and a more stable connection and sealing effect is achieved, which improves the service life and stability of the equipment.

CN222226009UActive Publication Date: 2024-12-24FOSHAN SHUNDE MIDEA WATER DISPENSER MFG +1
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Patent Information

Application Number
CN202420394490.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2024-12-24
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

When assembling the existing resin tank, the connection structure between the tank body and the lid body is complex and has poor strength, so the sealing and stability cannot be guaranteed.

Method used

By providing a first jamming part on the outer periphery of the installation opening of the tank body, a second jamming part is provided at the corresponding position of the cover body, the circumferential and radial limits between the tank body and the cover body are improved through the jamming part and the elastic structure. Increase the connection contact area and adopt the design of the latches, bayonets, elastic arms and sealing grooves to achieve a tight connection.

Benefits of technology

The connection strength and sealing between the tank body and the lid body are improved, the stability and service life of the resin tank assembly are ensured, and the connection loosening is avoided due to changes in water pressure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water softening, and provides a resin tank assembly and a water softening device.The resin tank assembly comprises a tank body and a cover body, the tank body is provided with a containing cavity and a mounting opening communicated with the containing cavity, and a first clamping part is arranged in the circumferential direction of the mounting opening; the cover body covers the mounting opening, a second clamping part corresponding to the first clamping part is arranged on the peripheral side of the cover body, and the second clamping part is clamped with the first clamping part, so that the cover body is connected with the tank body. The first clamping part is arranged on the periphery of the mounting opening of the tank body, the second clamping part is arranged at the corresponding position of the cover body, and the tank body and the cover body are limited in the circumferential direction and the radial direction through clamping connection of the first clamping part and the second clamping part, so that the connecting contact area between the tank body and the cover body is increased, and the service life of the tank body and the cover body is prolonged. The cover body and the tank body are tightly connected together, and therefore the connection strength between the tank body and the cover body is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of soft water, in particular to a resin tank component 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 connection structure between the tank body and the cover body of the existing resin tank is complicated during assembly, and the structural strength of the connection is poor. 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 provides a resin tank assembly, which improves the connection strength between the tank body and the cover body.

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

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

[0007] A tank body, the tank body having a receiving cavity and a mounting opening communicating with the receiving cavity, and a first clamping portion being arranged along the circumference of the mounting opening;

[0008] A cover body is provided on the installation opening, and a second clamping portion corresponding to the first clamping portion is provided on the peripheral side of the cover body, and the second clamping portion is clamped with the first clamping portion to connect the cover body and the tank body.

[0009] According to one embodiment of the utility model, it also includes a first clamping piece, a clamping groove is provided on the side of the cover body facing the tank body, a clamping port is provided on the peripheral wall of the installation opening, the clamping port is arranged corresponding to the clamping groove, and the first clamping piece is inserted between the clamping port and the clamping groove.

[0010] According to an embodiment of the present utility model, the first clamping member further includes a first elastic arm, and the first elastic arm is elastically abutted against the bayonet.

[0011] According to an embodiment of the utility model, the first clamping member is provided with an insertion hole on a side away from the clamping slot, and the insertion hole is extended along the circumference of the resin tank assembly.

[0012] According to an embodiment of the utility model, the number of the tank bodies is at least two, and the resin tank assembly further includes a second clamping piece, which is inserted between two adjacent bayonet ports and two adjacent slots.

[0013] According to an embodiment of the present invention, the second clamping member includes a second elastic arm, the second elastic arm is extended toward the cover body, the cover body is provided with an abutment portion, and the second elastic arm abuts against the abutment portion.

[0014] According to an embodiment of the utility model, a protrusion is provided on the outer periphery of the cover body facing the tank body, and a groove is provided on the periphery of the installation opening corresponding to the protrusion, and the protrusion is engaged with the groove.

[0015] According to one embodiment of the utility model, a plug-in tube is protruding from one side of the cover body toward the tank body, an annular sealing groove is provided on the peripheral wall of the plug-in tube, a sealing member is sleeved in the annular sealing groove, and interference fits between the groove wall of the annular sealing groove and the inner wall of the mounting opening.

[0016] According to one embodiment of the utility model, a connecting hole is provided on the outer periphery of the cover body, and a connecting column corresponding to the connecting hole is provided on the outer peripheral side of the mounting opening. The connecting column extends along the axial direction of the resin tank assembly, and a fastener passes through the connecting hole and is connected to the connecting column.

[0017] The utility model also proposes a water softening device, which includes a water softening valve and the above-mentioned resin tank assembly, wherein the resin tank assembly includes a tank body and a cover body, wherein the tank body has a accommodating cavity and an installation opening connected to the accommodating cavity, and a first clamping portion is provided along the circumference of the installation opening; the cover body is covered on the installation opening, and a second clamping portion corresponding to the first clamping portion is provided on the circumferential side of the cover body, and the second clamping portion is clamped with the first clamping portion to connect the cover body and the tank body.

[0018] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0019] The present application provides a first clamping portion on the outer periphery of the installation opening of the tank body, and a second clamping portion at the corresponding position of the cover body, and clamps the first clamping portion and the second clamping portion to limit the circumferential and radial positions between the tank body and the cover body, thereby increasing the connection contact area between the tank body and the cover body, so as to tightly connect the cover body and the tank body together, thereby improving the connection strength between the tank body and the cover body.

[0020] 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

[0021] 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.

[0022] Figure 1 It is an exploded view of an embodiment of a resin tank assembly provided by an embodiment of the utility model;

[0023] Figure 2 yes Figure 1 A schematic structural diagram of the first clamping member;

[0024] Figure 3 yes Figure 1 A schematic structural diagram of the second clamping member;

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle cover body.

[0026] Reference numerals:

[0027] 100. Resin tank assembly;

[0028] 110, tank body; 111, installation opening; 112, first clamping portion; 112a, bayonet; 113, groove; 114, connecting column;

[0029] 120, cover body; 121, second clamping portion; 121a, clamping groove; 122, protrusion; 123, plug-in cylinder; 123a, annular sealing groove; 124, connecting hole; 125, abutting portion;

[0030] 130, first clamping member; 131, first elastic arm; 132, plug-in hole;

[0031] 140. Second clamping member; 141. Second elastic arm. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] In the relevant technical field, the water softening device is mainly composed of a control valve, a resin tank assembly, a salt absorber, and a salt box. The core filter material of the water softening device is the softening resin, which is installed in the resin tank assembly. The importance of the resin tank assembly can be seen. The existing tank body has a complex connection structure during assembly and poor structural strength.

[0039] The utility model provides a resin tank component and a water softening device.

[0040] In the embodiment of the present utility model, Figures 1 to 4 As shown, the resin tank assembly 100 includes a tank body 110 and a cover body 120, the tank body 110 has a accommodating cavity and a mounting opening 111 connected to the accommodating cavity, and a first clamping portion 112 is provided along the circumference of the mounting opening 111; the cover body 120 is covered on the mounting opening 111, and a second clamping portion 121 corresponding to the first clamping portion 112 is provided on the circumferential side of the cover body 120, and the second clamping portion 121 is clamped with the first clamping portion 112 to connect the cover body 120 and the tank body 110.

[0041] The tank body 110 is generally in the shape of a hollow cylinder, and a receiving cavity is formed inside the tank body 110, wherein the receiving cavity is the main part of the resin tank assembly 100 and is used to store 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.

[0042] It can be understood that the resin tank assembly 100 may include one or more tank bodies 110 , and the tank bodies 110 are arranged in parallel. For easy installation, the installation openings 111 of the tank bodies 110 are aligned and arranged toward the same side.

[0043] The tank body 110 may also be integrally formed with the water channel component or the pump body. Specifically, an integrally formed water channel component or the pump body is provided on a side of the tank body 110 away from the installation opening 111 .

[0044] In other embodiments, the tank body 110 and the water channel component or pump body are separately arranged, wherein a tank opening is provided on the end surface of one end of the tank body 110, and the tank opening is used to allow and control the fluid to flow into and out of the containing cavity. The size and shape of the tank opening can be adjusted according to actual needs to optimize the flow properties of the resin. At the same time, a communication port connected to the tank opening is provided on the water channel component or pump body, so as to realize the water channel communication between the tank body and the water channel component or pump body.

[0045] The tank body 110 is provided with an installation opening 111 at the end away from the water channel component or the pump body. The installation opening 111 can facilitate the setting of the forming process of the tank body 110 on the one hand, and can facilitate the assembly and setting of other components of the tank body 110, such as a water distributor, etc. The tank body 110 is provided with a first clamping portion 112 on the outer periphery of the end where the installation opening 111 is provided.

[0046] The cover 120 is covered at the installation opening 111 to block the installation opening 111 to ensure the relative sealing performance of the accommodating cavity. The existing cover 120 and the tank body 110 are mostly connected and fixed axially by screws. During the use of the resin tank assembly 100, since the internal softening flow path requires a certain pressure to push, when the axially arranged tank mouth or the axially arranged accommodating cavity is in operation, the resin tank assembly 100 will form a propping force between the cover 120 and the tank body 110, and when the water pressure is unstable, the pressure is increased. Due to the repeated action of the expanding force, the screw connection cannot guarantee the reliability of the connection between the cover body 120 and the tank body 110. Therefore, the cover body 120 is provided with a second clamping portion 121 at a position corresponding to the first clamping portion 112. Through the abutment between the first clamping portion 112 and the second clamping portion, the circumferential and axial clamping areas between the cover body 120 and the tank body 110 are increased, thereby improving the connection limiting ability between the cover body 120 and the tank body 110, thereby improving the connection strength between the tank body 110 and the cover body 120.

[0047] The present application sets a first clamping portion 112 on the outer periphery of the installation opening 111 of the tank body 110, and sets a second clamping portion 121 at the corresponding position of the cover body 120. The first clamping portion 112 and the second clamping portion 121 are clamped to limit the circumferential and radial positions between the tank body 110 and the cover body 120, thereby increasing the connection contact area between the tank body 110 and the cover body 120, so as to tightly connect the cover body 120 and the tank body 110 together, thereby improving the connection strength between the tank body 110 and the cover body 120.

[0048] Reference Figure 1According to an embodiment of the utility model, a first clamping member 130 is further included. A clamping slot 121a is provided on the side of the cover 120 facing the tank body 110. A clamping port 112a is provided on the peripheral wall of the installation opening 111. The clamping port 112a and the clamping slot 121a are arranged correspondingly. The first clamping member 130 is inserted between the clamping port 112a and the clamping slot 121a. It can be understood that a clamping port 112a is provided around the installation opening 111 of the tank body 110, and a clamping slot 121a is correspondingly provided on the peripheral side of the cover 120. In this way, when the cover 120 is placed on the tank body 110, the clamping port 112a and the clamping slot 121a are arranged correspondingly, and can be engaged and limited by the first clamping member 130 inserted therein. A plurality of bayonet holes 112a can be provided along the corresponding positions of the slot 121a, and a plurality of corresponding first clamping members 130 can also be provided. The bayonet holes 112a can extend along the circumference of the slot 121a, so that the clamping part of the first clamping member 130 can also extend along the circumference of the slot 121a, thereby increasing the clamping area of ​​the first clamping member 130 between the tank body 110 and the cover body 120, so that the connection strength between the tank body 110 and the cover body 120 will be more firm and not easy to loosen or separate.

[0049] Reference Figure 1 and Figure 2 According to an embodiment of the utility model, the first clamping member 130 further includes a first elastic arm 131, and the first elastic arm 131 is elastically abutted against the bayonet 112a. In this embodiment, the first clamping member 130 is also provided with the first elastic arm 131. When the first clamping member 130 is inserted between the card slot 121a and the card slot 121a, the first elastic arm 131 will elastically abut against the bayonet 112a, thereby preventing the first clamping member 130 from accidentally escaping from the bayonet 112a, which can ensure the sealing and stability of the resin tank assembly 100 and prevent leakage or other unexpected situations. At the same time, the setting of the first elastic arm 131 can also make the first clamping member 130 reusable, thereby improving practicality. In addition, since the first elastic arm 131 is elastic, it can adapt to different installation environments and temperature conditions. In a high temperature environment, the material will expand, and in a low temperature environment, the material will shrink. Therefore, the first elastic arm 131 can adapt to these changes through its elasticity and maintain the firmness of the connection.

[0050] Reference Figure 1 and Figure 2According to one embodiment of the utility model, the first clamping component 130 is provided with a plug-in hole 132 on a side away from the card slot 121a, and the plug-in hole 132 is extended along the circumference of the resin tank assembly 100. It can be understood that a plug-in hole 132 is provided on the side of the first clamping component 130 away from the card slot 121a. The plug-in hole 132 is a through hole or an opening, which is extended along the circumference of the resin tank assembly 100, that is, it extends around the circumferential direction of the resin tank assembly 100. The plug-in hole 132 of the first clamping component 130 can be used to conveniently insert or remove the first clamping component 130. When it is necessary to connect or separate the cover body 120 of the resin tank assembly 100, the operation can be performed through the plug-in hole 132, so that installation and disassembly are more convenient.

[0051] Reference Figure 1 According to an embodiment of the utility model, the number of the tank body 110 is at least two, and the resin tank assembly 100 further includes a second clamping member 140, which is inserted between two adjacent bayonet ports 112a and two adjacent slots 121a. It can be understood that when the resin tank assembly 100 includes multiple tank bodies 110, in order to improve the assembly efficiency and the tightness of the connection between adjacent tank bodies 110, the second clamping member 140 is further provided in this embodiment. The second clamping member 140 is similar in structure to the first clamping member 130, and is also composed of a connecting portion and an elastically abutting elastic arm. The connecting portion of the second clamping member 140 is inserted between two adjacent bayonet ports 112a and two adjacent slots 121a, so that one second clamping member 140 can be inserted and limited to multiple bayonet ports 112a, which is convenient for disassembly and assembly, and can also enable the various parts of the resin tank assembly 100 to be tightly connected together to form an integral structure.

[0052] Reference Figure 1 and Figure 3 According to an embodiment of the present invention, the second clamping member 140 includes a second elastic arm 141, which is extended toward the cover body 120. The cover body 120 is provided with an abutting portion 125, and the second elastic arm 141 abuts against the abutting portion 125. In this embodiment, the second elastic arm 141 extends axially toward the cover body 120, and the cover body 120 is provided with an abutting portion 125, which can abut against the second elastic arm 141 after the second clamping member 140 is completely inserted into the bayonet 112a, so as to circumferentially limit the second clamping member 140 and prevent the second clamping member 140 from escaping from the bayonet 112a. In this way, by establishing the abutment relationship between the second elastic arm 141 and the abutment portion 125, a stable connection is established between the second elastic arm 141 and the cover body 120 and the tank body 110, so that the cover body 120 and the tank body 110 of the resin tank assembly 100 can remain tightly connected, ensuring the integrity and stability of the tank body 110.

[0053] Reference Figure 1 and Figure 4 According to one embodiment of the utility model, a protrusion 122 is provided on the outer periphery of the cover body 120 facing the tank body 110, and a groove 113 is provided on the periphery of the installation opening 111 corresponding to the protrusion 122, and the protrusion 122 is engaged with the groove 113. It can be understood that through the cooperation between the protrusion 122 and the groove 113, when the cover body 120 is placed on the tank body 110, the protrusion 122 and the groove 113 correspond to each other. It can ensure that the cover body 120 and the tank body 110 are aligned in the correct position. Such a fool-proof alignment design can avoid unstable connection or other damage caused by incorrect assembly. At the same time, rapid positioning can be achieved through the protrusion 122 and the groove 113, thereby improving the assembly efficiency between the cover body 120 and the tank body 110.

[0054] Reference Figure 1 and Figure 4 According to an embodiment of the utility model, a plug-in cylinder 123 is convexly provided on one side of the cover 120 facing the tank body 110, and an annular sealing groove 123a is provided on the peripheral wall of the plug-in cylinder 123. The sealing member is sleeved in the annular sealing groove 123a, and interference fits between the groove wall of the annular sealing groove 123a and the inner wall of the installation opening 111. It can be understood that when the cover 120 is plugged into the tank body 110, the annular sealing groove 123a of the plug-in cylinder 123 will correspond to the inner wall of the installation opening 111 of the tank body 110. At the same time, the sealing member sleeved in the annular sealing groove 123a will abut between the inner wall of the installation opening 111 and the annular sealing groove 123a. Through interference fit, the sealing member forms a close contact with the groove wall of the annular sealing groove 123a, thereby effectively preventing the leakage of liquid or gas. The interference fit can provide additional pressure, enhance the sealing effect between the cover 120 and the tank body 110, and ensure the stability and sealing of the connection. At the same time, the fit between the plug-in barrel 123 and the installation opening 111 can realize the pre-assembly function between the cover 120 and the tank body 110, and facilitate the installation and alignment of the first clamping member 130 and the second clamping member 140.

[0055] According to one embodiment of the utility model, a connection hole 124 is provided on the outer periphery of the cover 120, and a connection column 114 corresponding to the connection hole 124 is provided on the outer periphery of the installation opening 111, and the connection column 114 extends along the axial direction of the resin tank assembly 100, and the fastener passes through the connection hole 124 and is connected to the connection column 114. It can be understood that in order to further improve the connection strength between the cover 120 and the tank body 110, the cover 120 and the tank body 110 in this embodiment can also be connected by screws. Specifically, when the cover 120 needs to be installed on the tank body 110, the connection hole 124 of the cover 120 corresponds to the connection column 114 outside the installation opening 111. Then, by connecting the fastener (such as a bolt, a nut, etc.) passing through the connection hole 124 with the connection column 114, a firm connection is formed between the cover 120 and the tank body 110, which can prevent the cover 120 from accidentally loosening or falling off. At the same time, the use of the fastener can ensure the firmness and stability of the connection.

[0056] Of course, in other embodiments, the connection strength between the cover body 120 and the tank body 110 can be further enhanced by providing an internal thread on one side and an external thread on the other side.

[0057] The utility model also proposes a water softening device, which includes the above-mentioned resin tank assembly 100. The specific structure of the resin tank assembly 100 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 assembly, characterized in that: include: A tank body, the tank body having a receiving cavity and a mounting opening communicating with the receiving cavity, and a first clamping portion being arranged along the circumference of the mounting opening; A cover body is provided on the installation opening, and a second clamping part corresponding to the first clamping part is provided on the peripheral side of the cover body, and the second clamping part is clamped with the first clamping part to connect the cover body and the tank body.

2. The resin tank assembly according to claim 1, characterized in that: It also includes a first clamping piece, a clamping groove is provided on the side of the cover body facing the tank body, a clamping opening is provided on the peripheral wall of the installation opening, the clamping opening is arranged corresponding to the clamping groove, and the first clamping piece is inserted between the clamping opening and the clamping groove.

3. The resin tank assembly according to claim 2, characterized in that: The first clamping member further includes a first elastic arm, and the first elastic arm is elastically abutted against the bayonet.

4. The resin tank assembly according to claim 3, characterized in that: The first clamping member is provided with an insertion hole on a side away from the clamping slot, and the insertion hole is extended along the circumference of the resin tank assembly.

5. The resin tank assembly according to claim 3, characterized in that: The number of the tank bodies is at least two, and the resin tank assembly further comprises a second clamping member, which is inserted between two adjacent clamping ports and two adjacent clamping grooves.

6. The resin tank assembly according to claim 5, characterized in that: The second clamping member includes a second elastic arm, the second elastic arm is extended toward the cover body, the cover body is provided with an abutment portion, and the second elastic arm abuts against the abutment portion.

7. The resin tank assembly according to any one of claims 1 to 6, characterized in that: A protrusion is provided on the outer periphery of the cover body on one side facing the tank body, and a groove is provided on the periphery of the installation opening corresponding to the protrusion, and the protrusion is engaged with the groove.

8. The resin tank assembly according to any one of claims 1 to 6, characterized in that: The cover body is provided with a plug-in sleeve on one side facing the tank body, and an annular sealing groove is provided on the peripheral wall of the plug-in sleeve. The sealing member is sleeved in the annular sealing groove and is interference-fitted between the groove wall of the annular sealing groove and the inner wall of the installation opening.

9. The resin tank assembly according to any one of claims 1 to 6, characterized in that: A connecting hole is provided on the outer periphery of the cover body, a connecting column corresponding to the connecting hole is provided on the outer periphery of the mounting opening, the connecting column extends along the axial direction of the resin tank assembly, and a fastener passes through the connecting hole and is connected to the connecting column.

10. A water softening device, characterized in that: The invention comprises a soft water valve and a resin tank assembly as claimed in any one of claims 1 to 9.