Lower water distributor and water softener

Abstract

The lower water distributor comprises a water distributor base, flow channel extension pieces and a driving mechanism, the multiple flow channel extension pieces are spliced end to end and arranged around the peripheral side of the water distributor base to form a cylindrical structure, one end of each flow channel extension piece is hinged to the peripheral face of the water distributor base, and the other end of each flow channel extension piece is hinged to the driving mechanism. The other end of each flow channel extension piece can rotate in the circumferential direction of the water distributor base, a plurality of water passing holes are formed in the surface of each flow channel extension piece and communicate with an inner cavity of the water distributor base through inner cavities of the flow channel extension pieces, one part of the driving mechanism is arranged in the water distributor base, and the other part of the driving mechanism is arranged in the water distributor base. The driving device is used for driving all the flow channel extension pieces to be unfolded and folded synchronously. A cylindrical structure is formed when the water distributor base and the flow channel extension piece are folded, the size is reduced, the lower water distributor can be conveniently placed into the resin tank through a narrow inlet of the resin tank, the driving mechanism drives the flow channel extension piece to be unfolded, the flow channel extension piece enables the flow channel on the water distributor base to extend to a farther distance, and the dispersion area of the lower water distributor is increased.

Description

Technical Field

[0001] The present invention relates to a lower water distributor and a water softener. Background Art

[0002] The water softener softens tap water by using softening resin. After a certain amount of tap water passes through, the softening capacity of the softening resin decreases, and the softening resin needs to be regenerated. During regeneration, the regenerating brine flows through the central pipe and into the lower water distributor. There are many fine holes distributed on the lower water distributor, and the brine flows out from the fine holes to regenerate the softening resin in the resin tank.

[0003] Currently, the resin tank is limited by the structure of the valve head of the water softener, and generally the inlet size is much smaller than the diameter of the tank body. In order to place the lower water distributor into the resin tank through the inlet, the size of the lower water distributor is designed to be relatively small. During regeneration, due to the relatively small size of the lower water distributor, the flow of the brine is mainly concentrated in the central area of the resin tank, and the regeneration effect of the resin far from the central area is poor. On the one hand, it wastes brine, and on the other hand, the softening effect of the regenerated resin is also poor. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a lower water distributor and a water softener.

[0005] The present invention solves the above technical problem through the following technical solutions:

[0006] A lower water distributor, comprising:

[0007] A water distributor seat;

[0008] Flow channel extension members, a plurality of the flow channel extension members are spliced end to end and arranged around the circumferential side of the water distributor seat to form a cylindrical structure. One end of each flow channel extension member is hinged to the outer peripheral surface of the water distributor seat, and the other end of each flow channel extension member can rotate along the circumferential direction of the water distributor seat. A plurality of water passing holes are arranged on the surface of the flow channel extension member, and the water passing holes are communicated with the inner cavity of the water distributor seat through the inner cavity of the flow channel extension member;

[0009] A driving mechanism, a part of the driving mechanism is arranged inside the water distributor seat and is used to drive the synchronous unfolding and folding of all the flow channel extension members.

[0010] In this solution, each flow channel extension of the lower water distributor is hinged to the water distributor seat. Each flow channel extension can rotate along the circumferential direction of the water distributor seat. A plurality of flow channel extensions are spliced end to end and arranged around the circumference of the water distributor seat, so that the water distributor seat and the flow channel extensions form a cylindrical structure when retracted, reducing the volume of the lower water distributor and facilitating the lower water distributor to be placed into the resin tank through the narrow inlet of the resin tank. After the lower water distributor is placed into the resin tank, the drive mechanism is used to drive the flow channel extensions to unfold, so that the flow channel extensions extend the flow channels on the water distributor seat to a farther distance, increasing the dispersion area of the lower water distributor. When the lower water distributor is unfolded and in the process of regeneration, the water passing holes of the flow channel extensions can make the brine flow into the resin far from the central area, saving brine and improving the regeneration effect. When the lower water distributor is unfolded and in the process of water production, the flow channel extensions are horizontally laid at the bottom of the resin tank, increasing the raw water softening path, prolonging the softening process and improving the softening effect.

[0011] Preferably, the outer wall of the water distributor seat has a radially protruding mounting portion. The flow channel extension includes a body portion, an abutting portion and a hinge shaft. The abutting portion is arranged at an angle with the body portion. The body portion is hinged to the water distributor seat through the hinge shaft arranged on the mounting portion. The abutting portion is located inside the water distributor seat. The drive mechanism rotates the flow channel extension by pushing the abutting portion.

[0012] In this solution, the mounting portion is used to set the hinge shaft. When the outer diameter size of the lower water distributor is fixed, the mounting portion protrudes from the outer wall of the water distributor seat. The body portion of the flow channel extension is installed on the mounting portion through the hinge shaft, preventing interference between the flow channel extension and the water distributor seat when the flow channel extension rotates and increasing the rotation angle of the flow channel extension. At the same time, the flow channel extension and the water distributor seat also form an overlapping area, enabling the inner cavity of the water distributor seat to be set larger while taking into account the size of the flow channel extension, so as to obtain the maximum dispersion area when the flow channel extension unfolds. The abutting portion is arranged at an angle with the body portion, facilitating the drive mechanism to push the abutting portion, and thus enabling the body portion to rotate around the hinge shaft. The angle between the abutting portion and the body portion is preferably an acute angle, a right angle or an obtuse angle, so that the drive mechanism can push the abutting portion inside the water distributor seat.

[0013] Preferably, the drive mechanism includes a drive frame and a drive rod. One end of the drive rod is connected to the drive frame, and the other end of the drive rod passes through the mounting hole of the water distributor seat. A drive portion is arranged on the drive frame, and the drive portions are arranged in one-to-one correspondence with the abutting portions.

[0014] In this solution, since the drive portions and the abutting portions are arranged in one-to-one correspondence, a force can be applied at the distal end of the drive rod. The drive rod drives the drive frame to rotate, and the drive portions of the drive frame push the abutting portions of the flow channel extensions, causing all the flow channel extensions to rotate synchronously, which is simple and convenient to operate.

[0015] Preferably, the lower end protrusion of the driving frame is embedded in the inner wall groove of the water distributor seat, and the upper end of the driving rod passes through the central tube, facilitating manual operation of the driving rod outside the resin tank.

[0016] In an alternative solution, the driving rod can also be rotated by a motor to rotate the flow channel extension member.

[0017] In another alternative solution, the driving mechanism includes an elastic element and a pull rope. The elastic element is connected between the flow channel extension member and the water distributor seat. The elastic element applies a force to keep the flow channel extension member in the unfolded state or the folded state. The pull rope is connected to the flow channel extension member. By pulling the pull rope, the flow channel extension member is switched between the unfolded state and the folded state.

[0018] Preferably, the two side walls of the abutting portion are respectively a first side wall and a second side wall. When the driving portion rotates clockwise and abuts against the first side wall, the flow channel extension member rotates inward and folds. When the driving portion rotates counterclockwise and abuts against the second side wall, the flow channel extension member rotates outward and unfolds.

[0019] In this solution, with the above structural arrangement, by making full use of the cooperation between the two sides of the driving portion and the first side wall and the second side wall of the abutting portion, the forward rotation and reverse rotation of the flow channel extension member can be realized, thereby switching the state of the flow channel extension member. The structure is simple and the operation is convenient.

[0020] Preferably, the surface of the driving portion facing the second side wall has an arc protrusion, and the second side wall has an arc flange corresponding to the arc protrusion. The arc protrusion is used to abut against the arc flange.

[0021] In this solution, the arc protrusion cooperates with the arc flange to increase the force arm and reduce the driving force. At the same time, it also makes the contact area between the two smaller, reducing the friction force. When the driving portion abuts against the abutting portion, the arc protrusion rolls on the arc flange, and different parts of the arc protrusion and the arc flange come into contact, which can reduce the wear between the two.

[0022] Preferably, the outer peripheral surface of the water distributor seat has a docking port, and the flow channel extension member has an opening. The docking port is larger than the opening. The flow channel extension member is installed in the docking port. When the flow channel extension member unfolds, the opening communicates with the inner cavity of the water distributor seat through the docking port. When the flow channel extension member unfolds, the abutting portion can block a part of the docking port to prevent the inner cavity of the water distributor seat from directly communicating with the outside.

[0023] In this solution, the size of the mating interface is set larger so that the runner extension piece is embedded in a deeper position of the mating interface, obtaining a runner extension piece with a larger size, and also preventing the runner extension piece from interfering with the water distributor base during rotation, ensuring that the runner extension piece has sufficient rotation space to obtain a larger dispersion area. In addition to being used to cooperate with the driving part, the abutting part is also used to block a part of the mating interface to prevent resin particles in the resin tank from entering the interior of the water distributor base through the mating interface.

[0024] Preferably, the abutting part is further used to abut against the inner wall of the water distributor base, and the inner wall of the water distributor base is used to limit the rotation angle of the runner extension piece.

[0025] In this solution, the abutting part abuts against the inner wall of the water distributor base, keeping the runner extension piece at a preset rotation angle, ensuring that all the runner extension pieces are in an unfolded state and preventing the runner extension piece from rotating excessively.

[0026] Preferably, an arc surface is provided at the mating interface near the outer edge of the runner extension piece, and the arc surface is used to fit with the inner wall of the runner extension piece;

[0027] And / or, a sealing edge is provided at the edge of the mating interface near the hinge axis, and the sealing edge extends in the radial direction of the water distributor base.

[0028] In this solution, by providing an arc surface at the mating interface near the outer edge of the runner extension piece, the runner extension piece fits more closely with the water distributor base, enabling greater space utilization. With a certain outer diameter size, a larger-sized runner extension piece and water distributor base can be obtained, further increasing the dispersion area.

[0029] The sealing edge can block the gap between the edge of the runner extension piece near the hinge axis and the water distributor base, ensuring that the gap is less than a preset value and preventing resin particles in the resin tank from entering the interior of the water distributor base through this gap.

[0030] In an alternative solution, when the body part of the runner extension piece rotates to abut against the sealing edge, the rotation angle of the runner extension piece can also be limited.

[0031] Preferably, the lower water distributor further includes a central pipe, the central pipe is installed at the installation opening of the water distributor base, the central pipe is communicated with the inner cavity of the water distributor base, and at least a part of the driving mechanism passes through the inner cavity of the central pipe;

[0032] And / or, the water passing holes are long strip-shaped holes, and when the runner extension piece is unfolded, the extending direction of at least a part of the long strip-shaped holes is perpendicular to the straight line passing through the center of the water distributor base;

[0033] And / or, the runner extension piece has a crescent-shaped structure.

[0034] In this solution, during water production, the central pipe is used to collect softened water through the water distributor base. During regeneration, the central pipe is used to inject brine into the water distributor base.

[0035] The gap of the long strip-shaped holes is smaller than the gap of the resin particles. When the flow channel extension pieces are unfolded, the long strip-shaped holes on each flow channel extension piece are all on the vertical line passing through the center of the water distributor base, and all the long strip-shaped holes are located on an approximate circular ring surrounding the center of the water distributor base. Thus, a larger water collection and water distribution area can be obtained, and better effects can be achieved both during water production and regeneration.

[0036] Compared with the linear flow channel extension pieces, the crescent-shaped flow channel extension pieces have a longer arc length. When unfolded, they extend in the circumferential direction and the radial direction of the water distributor base, and a larger dispersion area can be obtained. At the same time, the crescent-shaped flow channel extension pieces also facilitate the end-to-end overlapping arrangement of multiple flow channel extension pieces to obtain larger-sized flow channel extension pieces, and thus a larger dispersion area.

[0037] In an optional solution, the flow channel extension pieces are in a circular ring shape or an arc shape. When the circular ring-shaped or arc-shaped flow channel extension pieces are unfolded, the dispersion area can also be increased.

[0038] Preferably, long strip-shaped holes are provided on the lower surface of the water distributor base, and a plurality of the long strip-shaped holes are arranged radially around the middle part of the water distributor base.

[0039] In this solution, through the plurality of long strip-shaped holes arranged radially, it is convenient for the water distributor base to collect softened water from below into the inner cavity, improving the water collection effect, and it is also convenient for the water distributor base to disperse brine from the inner cavity downward, improving the regeneration effect.

[0040] A water softener, the water softener includes the lower water distributor as described above.

[0041] On the basis of conforming to the common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0042] The positive and progressive effects of the present invention are as follows: Each flow channel extension of the lower water distributor is hinged on the water distributor base, and each flow channel extension can rotate along the circumferential direction of the water distributor base. A plurality of flow channel extensions are spliced end to end and arranged around the circumference of the water distributor base, so that the water distributor base and the flow channel extensions form a cylindrical structure when retracted, reducing the volume of the lower water distributor and facilitating the placement of the lower water distributor into the resin tank through the narrow inlet of the resin tank. After the lower water distributor is placed into the resin tank, the drive mechanism is used to drive the flow channel extensions to unfold, so that the flow channel extensions extend the flow channels on the water distributor base to a farther distance, increasing the dispersion area of the lower water distributor. For the unfolded lower water distributor, during regeneration, the water passing holes of the flow channel extensions can make the brine flow to the resin far from the central area, saving brine and improving the regeneration effect. For the unfolded lower water distributor, during water production, the flow channel extensions are horizontally laid at the bottom of the resin tank, increasing the raw water softening path, prolonging the softening process, and improving the softening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Structural schematic of the lower water distributor according to a preferred embodiment of the present invention Figure One (The flow channel extensions are in the retracted state).

[0044] Figure 2 Structural schematic of the lower water distributor according to a preferred embodiment of the present invention Figure Two (The flow channel extensions are in the retracted state).

[0045] Figure 3 Structural schematic of the lower water distributor after hiding the upper cover of the central pipe and the water distributor base according to a preferred embodiment of the present invention Figure Three (The flow channel extensions are in the retracted state).

[0046] Figure 4 Structural schematic of the drive mechanism according to a preferred embodiment of the present invention.

[0047] Figure 5 Structural schematic of the lower water distributor according to a preferred embodiment of the present invention Figure Four (The flow channel extensions are in the unfolded state).

[0048] Figure 6 Structural schematic of the lower water distributor according to a preferred embodiment of the present invention Figure Five (The flow channel extensions are in the unfolded state).

[0049] Figure 7 Structural schematic of the lower water distributor according to a preferred embodiment of the present invention Figure Six (The flow channel extensions are in the unfolded state).

[0050] Description of the reference numerals:

[0051] Water distributor base 1

[0052] Installation part 11

[0053] Docking interface 12

[0054] Arc surface 121

[0055] Sealing edge 13

[0056] Flow channel extension part 2

[0057] Water passing hole 21

[0058] Body part 22

[0059] Abutting part 23

[0060] First side wall 231

[0061] Second side wall 232

[0062] Arc flange 2321

[0063] Hinge shaft 24

[0064] Opening 25

[0065] Drive mechanism 3

[0066] Drive frame 31

[0067] Drive part 311

[0068] Arc protrusion 3111

[0069] Drive rod 32

[0070] Central pipe 4 Specific implementation mode

[0071] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the described embodiments

[0072] As Figures 1 - 7 shown, this embodiment discloses a lower water distributor, which includes a water distributor base 1, a flow channel extension part 2 and a drive mechanism 3. A plurality of flow channel extension parts 2 are spliced end to end and arranged around the circumferential side of the water distributor base 1 to form a cylindrical structure. One end of each flow channel extension part 2 is hinged to the outer peripheral surface of the water distributor base 1, and the other end of each flow channel extension part 2 can rotate along the circumferential direction of the water distributor base 1. A plurality of water passing holes 21 are arranged on the surface of the flow channel extension part 2, and the water passing holes 21 are communicated with the inner cavity of the water distributor base 1 through the inner cavity of the flow channel extension part 2. A part of the drive mechanism 3 is arranged inside the water distributor base 1 and is used to drive the synchronous unfolding and folding of all the flow channel extension parts 2.

[0073] As Figures 1 - 7As shown, each flow channel extension 2 of the lower water distributor is hinged to the water distributor base 1. Each flow channel extension 2 can rotate along the circumferential direction of the water distributor base 1. A plurality of flow channel extensions 2 are spliced end to end and arranged around the circumference of the water distributor base 1, so that the water distributor base 1 and the flow channel extensions 2 form a cylindrical structure when folded, reducing the volume of the lower water distributor and facilitating the lower water distributor to be placed into the resin tank through the narrow inlet of the resin tank. After the lower water distributor is placed into the resin tank, the drive mechanism 3 is used to drive the flow channel extensions 2 to unfold. After unfolding, the lower water distributor has an open flower structure, enabling the flow channel extensions 2 to extend the flow channels on the water distributor base 1 to a relatively long distance, increasing the dispersion area of the lower water distributor. A part of the drive mechanism 3 is arranged inside the water distributor base 1, not occupying the external space of the lower water distributor, and facilitating placement into the resin tank. All the flow channel extensions 2 unfold and fold synchronously, facilitating synchronous control by the drive mechanism 3. Compared with individual control one by one, the drive mechanism 3 can be simplified.

[0074] For the unfolded lower water distributor, during regeneration, the water passing holes 21 of the flow channel extensions 2 can make the brine flow into the resin far from the central area, saving brine and improving the regeneration effect. For the unfolded lower water distributor, during water production, the flow channel extensions 2 are horizontally laid at the bottom of the resin tank, increasing the raw water softening path, prolonging the softening process, and improving the softening effect.

[0075] In this embodiment, considering the processing technology and the strength requirements of each component, the water distributor base 1 and the flow channel extensions 2 form an approximately cylindrical structure when folded.

[0076] As Figure 1 、 Figure 2 、 Figure 5 And Figure 7 As shown, the lower water distributor further includes a central pipe 4. The central pipe 4 is installed at the installation opening of the water distributor base 1. The central pipe 4 is communicated with the inner cavity of the water distributor base 1. At least a part of the drive mechanism 3 passes through the inner cavity of the central pipe 4. During water production, the central pipe 4 is used to collect softened water through the water distributor base 1. During regeneration, the central pipe 4 is used to inject brine into the water distributor base. At least a part of the drive mechanism 3 passes through the inner cavity of the central pipe 4, and the drive mechanism 3 inside the water distributor base 1 can be operated from the distal end of the central pipe 4.

[0077] As Figures 1 - 3 、As 5 - Figure 7As shown in the figure, the outer wall of the water distributor base 1 has a radially protruding mounting portion 11. The flow channel extension member 2 includes a body portion 22, an abutting portion 23, and a hinge shaft 24. The abutting portion 23 is arranged at an angle with the body portion 22. The body portion 22 is hinged to the water distributor base 1 through the hinge shaft 24 provided on the mounting portion 11. The abutting portion 23 is located inside the water distributor base 1. The driving mechanism 3 rotates the flow channel extension member 2 by pushing against the abutting portion 23. The mounting portion 11 is used to set the hinge shaft 24. When the outer diameter of the lower water distributor is fixed, the mounting portion 11 protrudes on the outer wall of the water distributor base 1, and the body portion 22 of the flow channel extension member 2 is installed on the mounting portion 11 through the hinge shaft 24, preventing interference between the flow channel extension member 2 and the water distributor base 1 when the flow channel extension member 2 rotates, and increasing the rotation angle of the flow channel extension member 2. At the same time, the flow channel extension member 2 and the water distributor base 1 also form an overlapping area, which not only enables the inner cavity of the water distributor base 1 to be set larger, but also takes into account the size of the flow channel extension member 2 to obtain the largest dispersion area when the flow channel extension member 2 is unfolded. The abutting portion 23 is arranged at an angle with the body portion 22, which is convenient for the driving mechanism 3 to push against the abutting portion 23, and the body portion 22 can be rotated around the hinge shaft 24. The angle between the abutting portion 23 and the body portion 22 is preferably an acute angle, a right angle or an obtuse angle, so that the driving mechanism 3 can push against the abutting portion 23 inside the water distributor base 1.

[0078] As Figures 1 - 6 shown, the driving mechanism 3 includes a driving frame 31 and a driving rod 32. One end of the driving rod 32 is connected to the driving frame 31, and the other end of the driving rod 32 passes through the mounting hole of the water distributor base 1. A driving portion 311 is provided on the driving frame 31, and the driving portion 311 is arranged in one-to-one correspondence with the abutting portion 23. Since the driving portion 311 and the abutting portion 23 are arranged in one-to-one correspondence, a force can be applied at the distal end of the driving rod 32. The driving rod 32 drives the driving frame 31 to rotate, and the driving portion 311 of the driving frame 31 pushes against the abutting portion 23 of the flow channel extension member 2, so that all the flow channel extension members 2 rotate synchronously, and the operation is simple and convenient. Preferably, the lower end of the driving frame 31 is convexly embedded in the inner wall groove of the water distributor base 1, and the upper end of the driving rod 32 is fixed in the central pipe 4 through a support member, preventing the driving frame 31 from swaying, improving stability, and facilitating manual operation of the driving rod 32 to rotate outside the resin tank.

[0079] In an alternative embodiment, the driving rod can also be rotated by a motor to rotate the flow channel extension member.

[0080] In another alternative embodiment, the driving mechanism includes an elastic element and a pull rope. The elastic element is connected between the flow channel extension member and the water distributor base. The elastic element applies a force to keep the flow channel extension member in an unfolded state or a folded state. The pull rope is connected to the flow channel extension member, and by pulling the pull rope, the flow channel extension member is switched between the unfolded state and the folded state.

[0081] As Figure 3 andFigure 6 As shown, the two side walls of the abutting portion 23 are the first side wall 231 and the second side wall 232 respectively. When the driving portion 311 rotates clockwise and abuts against the first side wall 231, the flow channel extension member 2 rotates inward and closes up. When the driving portion 311 rotates counterclockwise and abuts against the second side wall 232, the flow channel extension member 2 rotates outward and unfolds. By using the two sides of the driving portion 311 to cooperate with the first side wall 231 and the second side wall 232 of the abutting portion 23 respectively, the forward rotation and reverse rotation of the flow channel extension member 2 can be realized, thereby switching the state of the flow channel extension member 2. The structure is simple and the operation is convenient.

[0082] As Figure 3 and Figure 6 shown, the surface of the driving portion 311 facing the second side wall 232 has an arc protrusion 3111, and the second side wall 232 has an arc flange 2321 correspondingly arranged with the arc protrusion 3111. The arc protrusion 3111 is used to abut against the arc flange 2321. The cooperation of the arc protrusion 3111 and the arc flange 2321 increases the force arm and reduces the driving force. At the same time, it also makes the contact area between the two smaller, reducing the friction force. When the driving portion 311 abuts against the abutting portion 23, the arc protrusion 3111 rolls on the arc flange 2321, and different parts of the arc protrusion 3111 and the arc flange 2321 are in contact, which can reduce the wear between the two.

[0083] As Figure 3 and Figure 6 shown, the outer peripheral surface of the water distributor seat 1 has a docking port 12, the flow channel extension member 2 has an opening 25, the docking port 12 is larger than the opening 25, the flow channel extension member 2 is installed in the docking port 12, and the opening 25 is communicated with the inner cavity of the water distributor seat 1 through the docking port 12 when the flow channel extension member 2 unfolds. The abutting portion 23 can block a part of the docking port 12 when the flow channel extension member 2 unfolds, so as to prevent the inner cavity of the water distributor seat 1 from being directly communicated with the outside. The size of the docking port 12 is set larger so that the flow channel extension member 2 is embedded in a deeper position of the docking port 12, obtaining a flow channel extension member 2 with a larger size, and also preventing the flow channel extension member 2 from interfering with the water distributor seat 1 during rotation, ensuring that the flow channel extension member 2 has enough rotation space to obtain a larger dispersion area. In addition to being used to cooperate with the driving portion 311, the abutting portion 23 is also used to block a part of the docking port 12 to prevent the resin particles in the resin tank from entering the inside of the water distributor seat 1 through the docking port 12. Since the lower water distributor is always in the unfolded state when softening water, the abutting portion 23 always blocks a part of the docking port 12, which can prevent the resin particles from entering the inside of the water distributor seat 1 through the docking port 12.

[0084] As Figure 6As shown, the abutting portion 23 is also used to abut against the inner wall of the water distributor seat 1, and the inner wall of the water distributor seat 1 is used to limit the rotation angle of the flow channel extension member 2. When the abutting portion 23 abuts against the inner wall of the water distributor seat 1, the flow channel extension member 2 is maintained at a preset rotation angle, ensuring that all the flow channel extension members 2 are in an unfolded state and preventing the flow channel extension members 2 from rotating excessively.

[0085] As Figure 6 shown, an arc surface 121 is provided at the outer edge of the docking port 12 close to the flow channel extension member 2, and the arc surface 121 is used to fit with the inner wall of the flow channel extension member 2. By providing the arc surface 121 at the outer edge of the docking port 12 close to the flow channel extension member 2, the flow channel extension member 2 fits more closely with the water distributor seat 1, so as to obtain a greater space utilization rate. When the outer diameter size is certain, larger-sized flow channel extension members 2 and water distributor seats 1 can be obtained, further improving the dispersion area.

[0086] As Figure 6 shown, a sealing edge 13 is provided at the edge of the docking port 12 close to the hinge shaft 24, and the sealing edge 13 extends along the radial direction of the water distributor seat 1. The sealing edge 13 can block the gap between the edge of the flow channel extension member 2 close to the hinge shaft 24 and the water distributor seat 1, ensuring that the gap is less than a preset value and preventing resin particles in the resin tank from entering the interior of the water distributor seat 1 through this gap.

[0087] In an alternative embodiment, when the body portion of the flow channel extension member rotates to abut against the sealing edge, the rotation angle of the flow channel extension member can also be limited. Of course, one of the sealing edge and the inner wall of the water distributor seat is selected for angle limitation of the flow channel extension member to prevent over-positioning.

[0088] As Figure 7 shown, the water passing holes 21 are in the shape of long strip holes, and when the flow channel extension member 2 is unfolded, the extending direction of at least a part of the long strip holes is perpendicular to the straight line passing through the center of the water distributor seat 1. The gap of the long strip holes is smaller than the gap of the resin particles. When the flow channel extension member 2 is unfolded, the long strip holes on each flow channel extension member 2 are all on the perpendicular line passing through the center of the water distributor seat 1, and all the long strip holes are located on an approximate circular ring surrounding the center of the water distributor seat 1 or are circumscribed to the same circular ring, so that the long strip holes cover a larger area in the circumferential direction, thereby obtaining a larger water collection and water distribution area, which has better effects both during water production and regeneration. In this embodiment, a part of the long strip holes are provided on the bottom surface of the flow channel extension member 2. Of course, the long strip holes can also be provided on the top surface or the circumferential side of the flow channel extension member 2.

[0089] As Figures 1 - 3 、 Figures 5 - 7As shown, the flow channel extension member 2 has a crescent structure. Compared with the linear flow channel extension member 2, the crescent-shaped flow channel extension member 2 has a longer arc length. When unfolded, it extends in the circumferential and radial directions of the water distributor base 1, and a larger dispersion area can be obtained. At the same time, the crescent-shaped flow channel extension member 2 also facilitates the end-to-end overlapping arrangement of multiple flow channel extension members 2 to obtain a flow channel extension member 2 with a larger size, and thus a larger dispersion area.

[0090] In an alternative embodiment, the flow channel extension member is in a circular ring shape or a circular arc shape. When the circular ring-shaped or circular arc-shaped flow channel extension member is unfolded, it can also increase the dispersion area.

[0091] As Figure 2 and Figure 7 As shown, long strip-shaped holes are provided on the lower surface of the water distributor base 1, and multiple long strip-shaped holes are arranged radially around the middle of the water distributor base 1. Through the multiple radially arranged long strip-shaped holes, it is convenient for the water distributor base 1 to collect softened water from below into the inner cavity, improving the water collection effect, and it is also convenient for the water distributor base 1 to disperse brine from the inner cavity downward, improving the regeneration effect.

[0092] This embodiment also discloses a water softener, which includes the lower water distributor as described above.

[0093] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only for illustration. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A bottom water distributor, characterized in that, It includes: A water distributor base; Flow channel extension members, a plurality of the flow channel extension members are spliced end to end and arranged around the circumferential side of the water distributor base to form a cylindrical structure. One end of each flow channel extension member is hinged to the outer peripheral surface of the water distributor base, and the other end of each flow channel extension member can rotate along the circumferential direction of the water distributor base. A number of water passing holes are arranged on the surface of the flow channel extension member, and the water passing holes are communicated with the inner cavity of the water distributor base through the inner cavity of the flow channel extension member; A driving mechanism, a part of the driving mechanism is arranged inside the water distributor base and is used to drive the synchronous unfolding and folding of all the flow channel extension members.

2. The lower water distributor according to claim 1, characterized in that, The outer wall of the water distributor base has a radially protruding mounting portion. The flow channel extension member includes a body portion, a abutting portion and a hinge shaft. The abutting portion is arranged at an angle with the body portion. The body portion is hinged to the water distributor base through the hinge shaft arranged on the mounting portion. The abutting portion is located inside the water distributor base, and the driving mechanism rotates the flow channel extension member by pushing against the abutting portion.

3. The lower water distributor according to claim 2, characterized in that, The driving mechanism includes a driving frame and a driving rod. One end of the driving rod is connected to the driving frame, and the other end of the driving rod passes through the mounting hole of the water distributor base. A driving portion is arranged on the driving frame, and the driving portions are arranged in one-to-one correspondence with the abutting portions.

4. The bottom water distributor according to claim 3, characterized in that, The two side walls of the abutting portion are respectively a first side wall and a second side wall. When the driving portion rotates clockwise and pushes against the first side wall, the flow channel extension member rotates inward and folds. When the driving portion rotates counterclockwise and pushes against the second side wall, the flow channel extension member rotates outward and unfolds.

5. The lower water distributor according to claim 4, wherein, The surface of the driving portion facing the second side wall has an arc protrusion, and the second side wall has an arc flange corresponding to the arc protrusion. The arc protrusion is used to push against the arc flange.

6. The bottom water distributor according to claim 2, characterized in that, The outer peripheral surface of the water distributor base has a docking port, and the flow channel extension member has an opening. The docking port is larger than the opening. The flow channel extension member is installed in the docking port. The opening is communicated with the inner cavity of the water distributor base through the docking port when the flow channel extension member unfolds. The abutting portion can block a part of the docking port when the flow channel extension member unfolds to prevent the inner cavity of the water distributor base from being directly communicated with the outside.

7. The bottom water distributor according to claim 6, wherein The abutting portion is also used to abut against the inner wall of the water distributor base, and the inner wall of the water distributor base is used to limit the rotation angle of the flow channel extension member.

8. The lower water distributor according to claim 6, characterized in that The docking port is provided with an arc surface near the outer edge of the flow channel extension member, and the arc surface is used to fit with the inner wall of the flow channel extension member; And / or, the edge of the docking port near the hinge shaft is provided with a sealing edge, and the sealing edge extends along the radial direction of the water distributor base.

9. The lower water distributor according to claim 1, characterized in that, The lower water distributor further includes a central pipe, the central pipe is installed at the installation port of the water distributor base, the central pipe is communicated with the inner cavity of the water distributor base, and at least a part of the driving mechanism passes through the inner cavity of the central pipe; And / or, the water passing holes are strip-shaped holes, and when the flow channel extension is unfolded, the extension direction of at least a part of the strip-shaped holes is perpendicular to the straight line passing through the center of the water distributor seat; And / or, the flow channel extension is in a crescent structure.

10. A water softener, characterized in that, The water softener includes the lower water distributor according to any one of claims 1-9.

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