Water softener and resin tank assembly thereof

Abstract

The utility model relates to the technical field of water softeners, in particular to a water softener and a resin tank assembly thereof, and aims to solve the problems that the softening efficiency and the regeneration efficiency of ion exchange resin of the conventional water softener are low due to the volume limitation of the water softener. In order to achieve the purpose, the resin tank assembly of the water softener comprises a resin tank which comprises an integrally-formed tank body, and the top of the tank body is provided with an installation opening; the upper flat plate water distributor is arranged in the tank body, the projection of the upper flat plate water distributor on the horizontal plane covers the projection of the mounting opening in the horizontal plane, and the cross section area of the upper flat plate water distributor is larger than that of the mounting opening; the lower flat plate water distributor is arranged in the tank body, the projection of the lower flat plate water distributor on the horizontal plane covers the projection of the mounting opening in the horizontal plane, and the cross section area of the lower flat plate water distributor is larger than that of the mounting opening. Therefore, the softening efficiency of water and the regeneration efficiency of the ion exchange resin are improved, the structural strength of the tank body is higher, and the pressure resistance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of water softeners, and specifically provides a water softener and a resin tank component thereof. Background Art

[0002] With the improvement of people's living standards and the increasing concern for water quality, water softeners have been accepted and recognized by more and more users. A water softener usually includes a resin tank assembly, a water switching valve, a salt tank, and a controller. The resin tank assembly includes a resin tank and an upper water distributor and a lower water distributor arranged inside the resin tank. The water switching valve is installed to the installation port on the top of the resin tank. The water inlet of the water switching valve is connected to the water inlet pipe. The salt intake port of the water switching valve is connected to the salt valve in the salt tank through the salt intake pipe. The water outlet of the water switching valve is connected to the interface of the upper water distributor. The soft water inlet of the water switching valve is connected to the upper end of the central pipe. The lower end of the central pipe is connected to the interface of the lower water distributor. The soft water outlet of the water switching valve is connected to the water outlet pipe. The drain outlet of the water switching valve is connected to the drainage channel of the installation site.

[0003] Typically, the upper and lower water distributors are roughly truncated cone-shaped, roughly the same size as the mounting opening. During use, due to the limited size of the water distributors, their water distribution area is limited. The ion exchange resin near the sidewall of the resin tank is not easily reached by the hard water sprayed by the upper water distributor, resulting in underutilization of this portion of the ion exchange resin. Furthermore, the flow rates of the upper and lower water distributors are significantly restricted, resulting in low water softening efficiency and ion exchange resin regeneration efficiency.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, namely, to solve the problem that the existing water softener has low softening efficiency and low regeneration efficiency of ion exchange resin due to the volume limitation of the water softener.

[0006] In a first aspect, the utility model provides a resin tank assembly of a water softener, the resin tank assembly comprising: a resin tank, comprising an integrally formed tank body, the top of the tank body having a mounting opening; an upper flat plate water distributor, arranged in the tank body, the projection of the upper flat plate water distributor in a horizontal plane covering the projection of the mounting opening in the horizontal plane, the cross-sectional area of the upper flat plate water distributor being larger than the cross-sectional area of the mounting opening; a lower flat plate water distributor, arranged in the tank body, the projection of the lower flat plate water distributor in a horizontal plane covering the projection of the mounting opening in the horizontal plane, the cross-sectional area of the lower flat plate water distributor being larger than the cross-sectional area of the mounting opening.

[0007] In the preferred technical solution of the above-mentioned resin tank assembly, the upper flat plate water distributor and the lower flat plate water distributor are provided with a connecting portion, which is used to detachably connect the upper flat plate water distributor and the lower flat plate water distributor, so that the upper flat plate water distributor and the lower flat plate water distributor are fixedly connected together through the connecting portion during the tank body manufacturing stage, and the upper flat plate water distributor and the lower flat plate water distributor are separated after the resin tank is manufactured.

[0008] In the preferred technical solution of the above resin tank assembly, the connecting portion includes a first connecting structure provided on the upper flat plate water distributor and a second connecting structure provided on the lower flat plate water distributor, and the first connecting structure and the second connecting structure can be snap-connected to each other.

[0009] In the preferred technical solution of the above-mentioned resin tank assembly, a through-hole for the central tube to pass through is provided in the middle of the upper flat plate water distributor, and the through-hole also serves as the first connecting structure. The second connecting structure includes a first elastic arm, and the first end of the first elastic arm is connected to the lower flat plate water distributor. A first protrusion is provided on the side of the first elastic arm away from the central axis of the lower flat plate water distributor at a position close to the second end of the first elastic arm, so that the second connecting structure and the first connecting structure are snapped together by "the first elastic arm is passed through the through-hole and the first protrusion abuts against the upper surface of the upper flat plate water distributor".

[0010] In a preferred technical solution of the above resin tank assembly, a surface of the first protrusion facing away from the central axis of the lower flat water distributor has a first guide surface so that the first protrusion and the second protrusion pass through the through hole.

[0011] In the preferred technical solution of the above-mentioned resin tank assembly, the upper flat plate water distributor includes an upper cover and a lower plate, the upper cover and the lower plate are snap-fitted together, and a plurality of first water distribution holes are formed on the lower plate; and / or the lower flat plate water distributor includes an upper plate and a lower cover, the upper plate and the lower cover are snap-fitted together, and a plurality of second water distribution holes are formed on the upper plate.

[0012] In a preferred technical solution of the above resin tank assembly, the upper flat plate water distributor is connected to the edge of the installation opening.

[0013] In the preferred technical solution of the above resin tank assembly, an annular connecting piece is embedded in the top of the tank body, a through hole in the middle of the connecting piece forms the mounting port, and the upper flat plate water distributor is connected to the connecting piece.

[0014] In the preferred technical solution of the above resin tank assembly, the tank body is made of fiberglass reinforced plastic.

[0015] When adopting the above technical solution, the resin tank assembly includes: a resin tank, which includes an integrally formed tank body, and the top of the tank body has a mounting port; an upper flat plate water distributor, which is arranged in the tank body, the projection of the upper flat plate water distributor in the horizontal plane covers the projection of the mounting port in the horizontal plane, and the cross-sectional area of the upper flat plate water distributor is larger than the cross-sectional area of the mounting port; a lower flat plate water distributor, which is arranged in the tank body, the projection of the lower flat plate water distributor in the horizontal plane covers the projection of the mounting port in the horizontal plane, and the cross-sectional area of the lower flat plate water distributor is larger than the cross-sectional area of the mounting port.

[0016] Through this arrangement, compared to the roughly truncated cone-shaped water distributors in existing resin tanks, the upper and lower flat plate water distributors in the present invention have larger cross-sectional areas. The larger water distribution area of the upper flat plate water distributor allows hard water to be sprayed onto a larger area of the ion exchange resin, improving the utilization rate of the ion exchange resin. Furthermore, the larger flow area of the upper and lower flat plate water distributors increases the water flow rate during the softening process and the regeneration of the ion exchange resin, thereby improving the water softening efficiency and the regeneration efficiency of the ion exchange resin. Compared to the manufacturing process of "manufacturing and molding multiple parts separately and then splicing / assembling them together," the integral molding of the resin tank body simplifies the manufacturing process, provides higher structural strength, and better pressure resistance, and avoids leakage at the seams / joints of the tank body manufactured by splicing / assembling due to high pressure inside the tank.

[0017] Preferably, the upper flat plate water distributor and the lower flat plate water distributor are provided with a connecting portion, which is used to detachably connect the upper flat plate water distributor and the lower flat plate water distributor, so that the upper flat plate water distributor and the lower flat plate water distributor are fixedly connected together through the connecting portion during the tank body manufacturing stage, and the upper flat plate water distributor and the lower flat plate water distributor are separated after the resin tank is manufactured.

[0018] Through such an arrangement, during the manufacturing stage of the tank body, the upper flat plate water distributor and the lower flat plate water distributor are fixedly connected together through the connecting part. Compared with the separate state, the overall volume of the upper flat plate water distributor and the lower flat plate water distributor is smaller, which reduces the impact of the upper flat plate water distributor and the lower flat plate water distributor on the tank body manufacturing process of the resin tank and facilitates the manufacturing of the tank body of the resin tank.

[0019] Preferably, the connecting portion includes a first connecting structure provided on the upper flat plate water distributor and a second connecting structure provided on the lower flat plate water distributor, and the first connecting structure and the second connecting structure can be engaged with each other.

[0020] This arrangement improves the convenience of disassembling and assembling the upper flat plate water distributor and the lower flat plate water distributor.

[0021] Preferably, a through hole for the central tube to pass through is provided in the middle of the upper flat plate water distributor, and the through hole also serves as a first connecting structure. The second connecting structure includes a first elastic arm, and the first end of the first elastic arm is connected to the lower flat plate water distributor. A first protrusion is provided on the side of the first elastic arm away from the central axis of the lower flat plate water distributor at a position close to the second end of the first elastic arm, so that the second connecting structure and the first connecting structure can be snapped into place by "the first elastic arm is passed through the through hole and the first protrusion abuts against the upper surface of the upper flat plate water distributor".

[0022] With this arrangement, there is no need to separately provide the first connecting structure, thus simplifying the structure of the connecting portion.

[0023] Preferably, a surface of the first protrusion facing away from the first elastic arm has a first guide surface so that the first protrusion passes through the through hole.

[0024] This arrangement further facilitates the connection and fixation of the upper flat plate water distributor and the lower flat plate water distributor.

[0025] Preferably, the upper flat plate water distributor includes an upper cover and a lower plate, which are snap-fitted together, and a plurality of first water distribution holes are formed on the lower plate; and / or the lower flat plate water distributor includes an upper plate and a lower cover, which are snap-fitted together, and a plurality of second water distribution holes are formed on the upper plate.

[0026] This arrangement facilitates the manufacture of the upper flat plate water distributor and / or the lower flat plate water distributor.

[0027] Preferably, the upper flat plate water distributor is connected to the edge of the mounting opening.

[0028] This arrangement facilitates the pre-installation and fixation of the upper flat plate water distributor and the lower flat plate water distributor during the manufacturing stage of the resin tank body, thereby facilitating the manufacturing of the resin tank body.

[0029] Preferably, the tank body is made of fiberglass reinforced plastics.

[0030] Through such an arrangement, the tank body of the resin tank has higher pressure resistance and corrosion resistance, and the service life of the tank body is extended.

[0031] In a second aspect, the present invention further provides a water softener, comprising the resin tank assembly of the water softener according to any one of the above technical solutions.

[0032] It should be noted that the water softener has all the technical effects of the resin tank assembly of the water softener described in any of the above technical solutions, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0034] Figure 1 This is a structural diagram of a resin tank assembly of a water softener according to an embodiment of the present invention;

[0035] Figure 2 This is a cross-sectional view of a resin tank assembly of a water softener according to an embodiment of the present invention when the tank body of the resin tank is completed;

[0036] Figure 3 yes Figure 2 A magnified view of the middle part A;

[0037] Figure 4 This is a cross-sectional view of a resin tank assembly of a water softener according to an embodiment of the present invention in use;

[0038] Figure 5 yes Figure 4 Enlarged view of part B in the middle.

[0039] List of reference numerals:

[0040] 1. Resin tank; 11. Tank body; 12. Connector; 121. Internal thread; 13. Mounting port; 2. Upper flat plate water distributor; 21. Upper cover; 22. Lower plate; 23. Through hole; 3. Lower flat plate water distributor; 31. Upper plate; 32. Lower cover; 331. First elastic arm; 332. First protrusion; 3321. First guide surface; 341. Second elastic arm; 342. Second protrusion; 3421. Second guide surface; 4. Center tube; 41. Opening. DETAILED DESCRIPTION

[0041] First, those skilled in the art should understand that the embodiments described below are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that in the description of the utility model, terms such as "left" and "right" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is for ease of description only and does not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, it should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the term "connection" should be understood in a broad sense. For example, it can refer to a fixed connection, a detachable connection, an integral connection, a direct connection, or an indirect connection. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0044] Based on the problem of low softening efficiency and ion exchange resin regeneration efficiency in existing water softeners mentioned in the background technology due to the volume limitation of the water softener, the utility model provides a resin tank assembly of a water softener, the resin tank assembly comprising: a resin tank, which comprises an integrally formed tank body, and a mounting port is provided at the top of the tank body; an upper flat plate water distributor, which is arranged in the tank body, and the projection of the upper flat plate water distributor in the horizontal plane covers the projection of the mounting port in the horizontal plane, and the cross-sectional area of the upper flat plate water distributor is larger than the cross-sectional area of the mounting port; a lower flat plate water distributor, which is arranged in the tank body, and the projection of the lower flat plate water distributor in the horizontal plane covers the projection of the mounting port in the horizontal plane, and the cross-sectional area of the lower flat plate water distributor is larger than the cross-sectional area of the mounting port.

[0045] Through this arrangement, compared to the roughly truncated cone-shaped water distributors in existing resin tanks, the upper and lower flat plate water distributors in the present invention have larger cross-sectional areas. The larger water distribution area of the upper flat plate water distributor allows hard water to be sprayed onto a larger area of the ion exchange resin, improving the utilization rate of the ion exchange resin. Furthermore, the larger flow area of the upper and lower flat plate water distributors increases the water flow rate during the softening process and the regeneration of the ion exchange resin, thereby improving the water softening efficiency and the regeneration efficiency of the ion exchange resin. Compared to tanks manufactured in multiple parts and then spliced / assembled together, the integrally formed tank body of the present invention has a simpler manufacturing process, higher structural strength, and better pressure resistance, avoiding leakage at the seams / joints of tanks manufactured by splicing / assembly due to high pressure within the tank.

[0046] Refer to the following Figures 1 to 5 The resin tank assembly of the water softener of the present invention is described in detail. Figure 1 This is a structural diagram of a resin tank assembly of a water softener according to an embodiment of the present invention. Figure 2 This is a cross-sectional view of a resin tank assembly of a water softener according to an embodiment of the present invention when the tank body of the resin tank is completed; Figure 3 yes Figure 2 A magnified view of the middle part A; Figure 4 This is a cross-sectional view of a resin tank assembly of a water softener according to an embodiment of the present invention in use; Figure 5 yes Figure 4 Enlarged view of part B in the middle.

[0047] like Figures 1 to 5As shown, the resin tank assembly includes a resin tank 1, which includes an integrally formed, cylindrical tank body 11, which is blow-molded from fiberglass. An annular connector 12 is embedded in the top of the tank body 11. The connector 12 has a through hole extending vertically therethrough, and the inner wall of the through hole is formed with an internal thread 121. The through hole forms a mounting opening 13, which is used to mount a waterway switching valve (not shown) and is fixedly connected to the waterway switching valve via the internal thread 121. The resin tank assembly also includes an upper flat plate water distributor 2 and a lower flat plate water distributor 3, each of which is disposed within the tank body 11 and has a circular cross-section. The projection of the upper flat plate water distributor 2 in a horizontal plane overlaps the projection of the mounting opening 13 in a horizontal plane, and the cross-sectional area of the upper flat plate water distributor 2 is larger than the cross-sectional area of the mounting opening 13. The projection of the lower flat plate water distributor 3 in a horizontal plane overlaps the projection of the mounting opening 13 in a horizontal plane, and the cross-sectional area of the lower flat plate water distributor 3 is larger than the cross-sectional area of the mounting opening 13. For example, the tank body 11, the installation port 13, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are coaxial, the diameter of the installation port 13 is one third of the middle diameter of the tank body 11, and the diameters of the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are both two thirds of the middle diameter of the tank body 11.

[0048] Through this arrangement, compared to the roughly truncated cone-shaped water distributors in existing resin tanks, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 in the resin tank of the present invention have larger cross-sectional areas. The upper flat plate water distributor 2 has a larger water distribution area, which can spray hard water onto a larger area of ion exchange resin, thereby improving the utilization rate of the ion exchange resin. In addition, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 have a larger flow area, which increases the water flow rate during the softening process and the regeneration process of the ion exchange resin, thereby improving the water softening efficiency and the regeneration efficiency of the ion exchange resin. Compared to a tank body that is "manufactured and formed into multiple parts and then spliced / assembled together," the integrally formed tank body 11 of the present invention has a simpler manufacturing process, a higher structural strength of the tank body, and better pressure resistance, thereby avoiding leakage at the seams / joints of the tank body manufactured by splicing / assembly due to the high pressure inside the tank body.

[0049] like Figures 2 to 5As shown, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are configured with a connecting portion, which is used to detachably connect the upper flat plate water distributor 2 and the lower flat plate water distributor 3. This allows the upper flat plate water distributor 2 and the lower flat plate water distributor 3 to be fixedly connected together via the connecting portion during the manufacturing stage of the tank body 11, and the upper flat plate water distributor 2 and the lower flat plate water distributor 3 to be separated after the resin tank assembly is manufactured. The connecting portion includes a first connecting structure provided on the upper flat plate water distributor 2 and a second connecting structure provided on the lower flat plate water distributor 3. The first connecting structure and the second connecting structure are capable of being snapped together. The cam 331 is provided with a first elastic arm 331 and a second elastic arm 341 which are symmetrical with respect to the vertical center plane of the lower flat plate water distributor 3. The lower end of the first elastic arm 331 and the lower end of the second elastic arm 341 are both connected to the lower flat plate water distributor 3. A first protrusion 332 is provided on the left side of the first elastic arm 331 (i.e., the side away from the second elastic arm 341) near the upper end of the first elastic arm 331, and a second protrusion 342 is provided on the right side of the second elastic arm 341 (i.e., the side away from the first elastic arm 331) near the upper end of the second elastic arm 341, so that the first elastic arm 331 and the second elastic arm 341 are passed through the through hole 23, and the first protrusion 332 and the second protrusion 342 are abutted against the upper surface of the upper flat plate water distributor 2. Figure 3 As shown) realizes the snap connection between the second connecting structure and the first connecting structure.

[0050] like Figure 3 and Figure 5 As shown, the left side of the first protrusion 332 (i.e., the surface facing away from the first elastic arm 331) has a first guide surface 3321, and the right side of the second protrusion 342 (i.e., the surface facing away from the second elastic arm 341) has a second guide surface 3421. Exemplarily, the first guide surface 3321 is a plane inclined to the left from top to bottom, and the second guide surface 3421 is a plane inclined to the right from top to bottom. It is understood that the first guide surface 3321 can also be set as a curved surface inclined to the left from top to bottom, and the second guide surface 3421 can also be set as a curved surface inclined to the right from top to bottom.

[0051] like Figures 3 to 5As shown, the upper flat plate water distributor 2 is connected to the edge of the mounting opening 13. Specifically, the upper flat plate water distributor 2 includes an upper cover 21 and a lower plate 22. The upper cover 21 is integrally formed with the connector 12. The upper cover 21 and the lower plate 22 are snap-fitted together, and a plurality of first water distribution holes are formed on the lower plate 22 (not shown in the figure). The lower flat plate water distributor 3 includes an upper plate 31 and a lower cover 32. The upper plate 31 and the lower cover 32 are snap-fitted together, and a plurality of second water distribution holes are formed on the upper plate 31 (not shown in the figure). The lower end of the first elastic arm 331 and the lower end of the second elastic arm 341 are both connected to the upper plate 31, and the first elastic arm 331 and the second elastic arm 341 are integrally formed with the upper plate 31.

[0052] Before the tank body 11 is manufactured, the connector 12, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are manufactured and formed separately. Figure 2 and Figure 3During the manufacturing stage of the tank body 11, the connecting piece 12 is first fixed to the blow molding fixture (not shown in the figure). Since the upper cover 21 of the upper flat water distributor 2 is integrally formed with the connecting piece 12, the upper flat water distributor 2 does not need to be separately fixed to the blow molding fixture. The first elastic arm 331 and the second elastic arm 341 on the lower flat water distributor 3 penetrate the through hole 23 from bottom to top. The first guide surface 3321 on the first protrusion 332 and the second guide surface 3421 on the second protrusion 342 first abut against the lower part of the inner wall of the through hole 23. The first elastic arm 331 and the second elastic arm 341 are fixed to the lower part of the inner wall of the through hole 23. The arms 341 bend and deform toward each other, causing the first and second projections 332, 342 to gradually penetrate into the through-hole 23 and ultimately exit from the upper end of the through-hole 23. After the first and second projections 332, 342 exit the through-hole 23, the first and second elastic arms 331, 341 return to their original positions, with the lower surfaces of the first and second projections 332, 342 resting against the upper surface of the upper flat plate water distributor 2, and the lower flat plate water distributor 3 resting against the lower surface of the upper flat plate water distributor 2, thereby achieving a fixed connection between the lower flat plate water distributor 3 and the upper flat plate water distributor 2. The connector 12, the upper and lower flat plate water distributors 2, and the blow molding fixture are placed together in an outer mold (not shown). The blow molding equipment (not shown) blows the high-temperature, soft fiberglass blank in the outer mold to achieve the integral molding of the tank body 11 and simultaneously achieve a fixed connection between the tank body 11 and the connector 12. After the resin tank 1 is manufactured, the central tube 4 and the water channel switching valve are installed. The lower end of the central tube 4 is sealed, and an opening 41 is formed on the side wall of the central tube 4 near the lower end. First, insert the lower end of the central tube 4 through the installation port 13 and connect it with the lower flat water distributor 3. The opening 41 is connected to the water inlet on the inner wall of the through hole in the middle of the lower flat water distributor 3. Then, use your hand or a tool to bend the first elastic arm 331 and the second elastic arm 341 in the direction of approaching each other, so that the first protrusion 332 and the second protrusion 342 are disengaged from the upper surface of the upper flat water distributor 2. At the same time, move the central tube 4 downward. The lower flat water distributor 3 moves as the central tube 4 moves downward. The first elastic arm 331 and the second elastic arm 341 are removed from the through hole 23. The upper end of the central tube 4 is connected to the soft water inlet of the water channel switching valve. The water channel switching valve and the connecting piece 12 are screwed together. The water outlet of the water channel switching valve is just connected to the water inlet of the upper flat water distributor 2.

[0053] The upper flat plate water distributor 2 and the lower flat plate water distributor 3 are provided with a connecting portion, which is used to detachably connect the upper flat plate water distributor 2 and the lower flat plate water distributor 3, so that the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are fixedly connected together through the connecting portion during the manufacturing stage of the tank body 11, and the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are separated after the resin tank assembly is manufactured. In this way, during the manufacturing stage of the tank body 11, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are fixedly connected together through the connecting portion. Compared with the separated state, the overall volume of the upper flat plate water distributor 2 and the lower flat plate water distributor 3 is smaller, which reduces the influence of the upper flat plate water distributor 2 and the lower flat plate water distributor 3 on the manufacturing process of the tank body 11 of the resin tank, and facilitates the manufacture of the tank body 11 of the resin tank 1.

[0054] It should be noted that this is only a preferred arrangement and can be adjusted in actual applications. For example, the upper flat plate water distributor 2 and the lower flat plate water distributor 3 are not provided with a connection portion. In this case, during the manufacturing stage of the tank body 11, both the upper flat plate water distributor 2 and the lower flat plate water distributor 3 need to be fixed to the blow molding fixture, and after the tank body 11 is manufactured, the central tube 4 and the lower flat plate water distributor 3 are connected. However, this requires the use of more tools to achieve the connection between the central tube 4 and the lower flat plate water distributor 3.

[0055] The connection portion includes a first connection structure provided on the upper flat plate water distributor 2 and a second connection structure provided on the lower flat plate water distributor 3, and the first connection structure and the second connection structure can be snapped into each other, thereby improving the convenience of disassembly and assembly of the upper flat plate water distributor 2 and the lower flat plate water distributor 3.

[0056] It should be noted that this is also a more preferred setting method, which can be adjusted in actual application. For example, the first connecting structure is a first magnet formed on the upper flat water distributor 2, and the second connecting structure is a second magnet formed on the lower flat water distributor 3. The first magnet and the second magnet are attracted to each other to achieve connection, or the connecting part includes a bolt, a connecting hole formed on the upper flat water distributor 2 and a threaded hole formed on the lower flat water distributor 3, the bolt passes through the connecting hole on the upper flat water distributor 2 and is tightened with the threaded hole on the lower flat water distributor 3, or the connecting part includes a pin shaft, a first connecting hole formed on the upper flat water distributor 2 and a second connecting hole formed on the lower flat water distributor 3, the pin shaft is passed through the first connecting hole and the second connecting hole, thereby achieving a fixed connection between the lower flat water distributor 3 and the upper flat water distributor 2.

[0057] The through hole 23 in the middle of the upper flat water distributor 2 for the central tube 4 to pass through also serves as a first connecting structure. The second connecting structure includes a first elastic arm 331 and a second elastic arm 341 symmetrical about the vertical center plane of the lower flat water distributor 3. The lower end of the first elastic arm 331 and the lower end of the second elastic arm 341 are both connected to the lower flat water distributor 3. A first protrusion 332 is provided on the left side of the first elastic arm 331 (i.e., the side away from the second elastic arm 341) near the upper end of the first elastic arm 331, and a second protrusion 342 is provided on the right side of the second elastic arm 341 (i.e., the side away from the first elastic arm 331) near the upper end of the second elastic arm 341, so that the first elastic arm 331 and the second elastic arm 341 are passed through the through hole 23, and the first protrusion 332 and the second protrusion 342 are abutted against the upper surface of the upper flat water distributor 2 (such as Figure 3 The second connecting structure is connected to the first connecting structure by means of a clip (as shown), eliminating the need for a separate first connecting structure and simplifying the structure of the connection portion. The first elastic arm 331 and the second elastic arm 341 are inserted through the through hole 23, and the first and second protrusions 332 and 342 abut against the upper surface of the upper flat water distributor 2, enabling a more stable and reliable connection between the second connecting structure and the first connecting structure.

[0058] It should be noted that this is also a more preferred setting method, which can be adjusted in actual application. For example, in another feasible embodiment, the second connecting structure includes more than three elastic arms evenly distributed around the central axis of the lower flat water distributor 3, and the lower end of each elastic arm is connected to the lower flat water distributor 3. A protrusion is provided on the side of the elastic arm away from the central axis of the lower flat water distributor 3 near the upper end of the elastic arm, so that the second connection structure is achieved by "all elastic arms are passed through the through hole 23, and all protrusions are against the upper surface of the upper flat water distributor 2". The connection structure is snap-fitted to the first connection structure. In another feasible embodiment, the second connection structure includes only a first elastic arm 331, the lower end of the first elastic arm 331 is connected to the lower flat plate water distributor 3, and a first protrusion 332 is provided on the side of the first elastic arm 331 facing away from the central axis of the lower flat plate water distributor 3, near the upper end of the first elastic arm 331, so that the second connection structure and the first connection structure can be snap-fitted by "the first elastic arm 331 passing through the through hole 23 and the first protrusion 332 abutting against the upper surface of the upper flat plate water distributor 2". In another feasible embodiment, the first connection structure is a separately provided snap-fitting hole on the upper flat plate water distributor 2, and the second connection structure is a claw provided on the lower flat plate water distributor 3, or the first connection structure is a separately provided snap-fitting claw on the upper flat plate water distributor 2, and the second connection structure is a snap-fitting hole on the lower flat plate water distributor 3, and the claw is snap-fitted to the snap-fitting hole, thereby achieving a fixed connection between the lower flat plate water distributor 3 and the upper flat plate water distributor 2.

[0059] The left side of the first protrusion 332 (i.e., the surface facing away from the first elastic arm 331) has a first guide surface 3321, and the right side of the second protrusion 342 (i.e., the surface facing away from the second elastic arm 341) has a second guide surface 3421. This facilitates the insertion of the first and second protrusions 332, 342 into the through-hole 23, further facilitating the connection and fixation of the upper flat plate water distributor 2 and the lower flat plate water distributor 3. It should be noted that this is also a relatively preferred arrangement, which can be adjusted in actual applications. For example, the left side of the first protrusion 332 (i.e., the surface facing away from the first elastic arm 331) does not have the first guide surface 3321, and the right side of the second protrusion 342 (i.e., the surface facing away from the second elastic arm 341) does not have the second guide surface 3421.

[0060] The upper flat plate water distributor 2 comprises an upper cover 21 and a lower plate 22. The upper cover 21 is integrally formed with the connector 12 and fastened to the lower plate 22. The lower plate 22 is formed with a plurality of first water distribution holes (not shown). The lower flat plate water distributor 3 comprises an upper plate 31 and a lower cover 32. The upper plate 31 and the lower cover 32 are fastened to the upper plate 31, and a plurality of second water distribution holes (not shown). This facilitates the manufacture of the upper and lower flat plate water distributors 2 and 3, reducing the manufacturing difficulty.

[0061] It should be noted that this is also a more preferred setting method, which can be adjusted in actual application. For example, the upper flat plate water distributor 2 includes an upper cover 21 and a lower plate 22, the upper cover 21 and the connecting member 12 are integrally formed, the upper cover 21 and the lower plate 22 are snap-fitted and connected, a plurality of first water distribution holes are formed on the lower plate 22, and the lower flat plate water distributor 3 is integrally formed, or the upper flat plate water distributor 2 is integrally formed, the lower flat plate water distributor 3 includes an upper plate 31 and a lower cover 32, the upper plate 31 and the lower cover 32 are snap-fitted and connected, a plurality of second water distribution holes are formed on the upper plate 31, or the upper flat plate water distributor 2 is integrally formed, and the lower flat plate water distributor 3 is integrally formed.

[0062] The upper flat plate water distributor 2 is connected to the connector 12 , which facilitates the pre-installation and fixation of the upper flat plate water distributor 2 and the lower flat plate water distributor 3 during the manufacturing stage of the tank body 11 of the resin tank 1 , thereby facilitating the manufacturing of the tank body 11 of the resin tank 1 .

[0063] It should be noted that this is also a relatively preferred setting method, which can be adjusted in actual application. For example, if the upper flat water distributor 2 is not connected to the connecting piece 12, the upper flat water distributor 2 needs to be fixedly connected to the blow molding fixture during the manufacturing stage of the tank body 11 of the resin tank 1. After the resin tank 1 is manufactured, the upper flat water distributor 2 is sleeved on the central tube 4 and fixedly connected to the central tube 4. In another feasible embodiment, the top of the tank body 11 is not embedded with the annular connecting piece 12. The top of the tank body 11 directly forms a mounting opening, and the side walls of the mounting opening are formed with threads. The upper flat water distributor 2 is directly screwed together with the threads on the side walls of the mounting opening to achieve connection between the upper flat water distributor 2 and the edge of the mounting opening.

[0064] The tank body 11 is blow-molded from a glass fiber reinforced plastic material, which makes the tank body 11 of the resin tank 1 have higher pressure resistance and corrosion resistance, and makes the service life of the tank body 11 longer.

[0065] It should be noted that this is also a more preferred setting method, which can be adjusted in actual application, such as the tank body 11 being integrally injection-molded from plastic.

[0066] In addition, the present invention also provides a water softener, which includes the resin tank assembly according to any one of the above embodiments.

[0067] It should be noted that the water softener has all the technical effects of the resin tank assembly described in any of the above embodiments, which will not be described in detail here.

[0068] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A resin tank assembly for a water softener, characterized in that: The resin tank assembly includes: The resin tank comprises an integrally formed tank body, wherein the top of the tank body has a mounting opening; an upper flat plate water distributor disposed in the tank body, wherein the projection of the upper flat plate water distributor on the horizontal plane covers the projection of the mounting opening on the horizontal plane, and the cross-sectional area of the upper flat plate water distributor is greater than the cross-sectional area of the mounting opening; A lower flat plate water distributor is arranged in the tank body, the projection of the lower flat plate water distributor on the horizontal plane covers the projection of the installation port on the horizontal plane, and the cross-sectional area of the lower flat plate water distributor is larger than the cross-sectional area of the installation port.

2. The resin tank assembly according to claim 1, wherein: The upper flat plate water distributor and the lower flat plate water distributor are provided with a connecting portion, which is used to detachably connect the upper flat plate water distributor and the lower flat plate water distributor so that the upper flat plate water distributor and the lower flat plate water distributor are fixedly connected together through the connecting portion during the tank body manufacturing stage, and the upper flat plate water distributor and the lower flat plate water distributor are separated after the resin tank is manufactured.

3. The resin tank assembly according to claim 2, wherein: The connecting portion includes a first connecting structure provided on the upper flat plate water distributor and a second connecting structure provided on the lower flat plate water distributor, and the first connecting structure and the second connecting structure can be engaged with each other.

4. The resin tank assembly according to claim 3, wherein: The middle of the upper flat plate water distributor is provided with a through hole for the central pipe to pass through, and the through hole also serves as the first connecting structure. The second connecting structure includes a first elastic arm, the first end of the first elastic arm is connected to the lower flat plate water distributor, and a first protrusion is provided on the side of the first elastic arm away from the central axis of the lower flat plate water distributor at a position close to the second end of the first elastic arm, so that the second connecting structure and the first connecting structure can be snapped together by "the first elastic arm is passed through the through hole and the first protrusion abuts against the upper surface of the upper flat plate water distributor".

5. The resin tank assembly according to claim 4, wherein: A surface of the first protrusion facing away from the central axis of the lower flat water distributor has a first guide surface so that the first protrusion passes through the through hole.

6. The resin tank assembly according to claim 1, wherein: The upper flat plate water distributor comprises an upper cover and a lower plate, the upper cover and the lower plate are buckled and connected, and a plurality of first water distribution holes are formed on the lower plate; and / or The lower flat plate water distributor includes an upper plate and a lower cover, the upper plate and the lower cover are buckled and connected, and a plurality of second water distribution holes are formed on the upper plate.

7. The resin tank assembly according to claim 1, wherein: The upper flat plate water distributor is connected to the edge of the installation opening.

8. The resin tank assembly according to claim 7, wherein: An annular connecting piece is embedded in the top of the tank body, a through hole in the middle of the connecting piece forms the mounting port, and the upper flat plate water distributor is connected to the connecting piece.

9. The resin tank assembly according to any one of claims 1 to 8, characterized in that The tank body is made of glass fiber reinforced plastic.

10. A water softener, characterized in that: The water softener includes the resin tank assembly of the water softener according to any one of claims 1 to 9.

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