A water body softening device

Abstract

The utility model relates to water body softening technical field, concretely relates to a water body softening device. The water body softening device includes casing, the filter module who sets up in the casing and the ion exchange resin who sets up in the filter module, its characterized in that the filter module has the clamping hole laterally, the filter module is arranged in the casing through locking assembly, and the locking assembly includes: buckle, button, touch piece, connecting rod. The user of using this water body softening device can fix the filter module through the clamping of buckle in the clamping hole in the casing, and the installation of filter module in the casing is completed, the user can also extrude the buckle out of the clamping hole through the button and drive connecting rod and touch piece, and the connection relationship of filter module and casing is removed, and the user can pull out the filter module from the casing, and the disassembly of filter module and casing is completed, with the advantage that dismounting is convenient.

Description

Technical Field

[0001] This utility model relates to the field of water softening technology, specifically to a water softening device. Background Technology

[0002] With advancements in technology and improvements in living standards, dishwashers have become increasingly common. However, existing dishwashers offer limited improvements in cleaning power through structural modifications. Using electrolyzed water instead of detergent can significantly enhance cleaning capabilities, thus requiring a water electrolyzer to produce it. To extend the lifespan of the electrode plates during electrolysis, pure water must be introduced into the water. Currently, the best method for filtering water is using resin to remove calcium and magnesium ions. However, to ensure the electrode plates have a five-year lifespan while minimizing the space required for the resin module, it needs to be replaced annually.

[0003] The aforementioned Chinese utility model patent, CN201720913036.8 (publication number CN207158977U), entitled "A Water Softening Device for Domestic Drinking Water," discloses a water softening device with replaceable filter cartridges. This device allows replacement of the PP cotton filter cartridge by loosening the fastening bolts. While this technology can achieve the same detachable replacement effect in water softening devices with resin modules, the filter cartridge, when manually pulled out while submerged in water, carries away insufficiently filtered hard water, leaving water stains around the filter box. This requires additional cleaning, resulting in poor cleanliness. Furthermore, when removing or inserting the filter cartridge during replacement, filtered water splashes out of the filter box. Additionally, since the resin filter requires filling within the filter module to function, the aforementioned method of directly replacing the filter screen cannot be used. Therefore, a water softener that allows for complete replacement of the resin filter module urgently needs to be developed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a water softening device that facilitates the replacement of resin filter modules, in light of the above-mentioned existing technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: the water softening device includes a shell, a filter module disposed within the shell, and an ion exchange resin disposed within the filter module, characterized in that the filter module has a locking hole on its side; the filter module is disposed within the shell by a locking component, the locking component comprising:

[0006] The buckle is elastically provided on the inner wall of the housing and can extend into the buckle hole;

[0007] A button is flexibly located on the filter module;

[0008] An actuating element, which is vertically mounted on the filter module and can drive the latch to disengage from the slot; and

[0009] A connecting rod, rotatably mounted on the filter module, has one end connected to the button and the other end connected to or abutting against the touch element.

[0010] When the aforementioned button is pressed, it can drive the connecting rod to rotate, which in turn drives the trigger to descend. The trigger drives the buckle to disengage from the locking hole, and the filter module separates from the housing.

[0011] To enable the reusability of the buckle, preferably, the inner wall of the housing is provided with a transverse groove, and a first elastic element is provided at the bottom of the groove. The first elastic element is connected to or abuts against the first end of the buckle. The first elastic element allows the buckle to move repeatedly inside and outside the groove.

[0012] To enable repeated use of the button, preferably, the locking component is mounted on the filter module via a fixing part, which forms a fixing channel. The button is at least partially exposed at the opening of the first end of the fixing channel. A second elastic element is vertically provided on the channel wall within the opening at the first end of the fixing channel, and the second elastic element is connected to or abuts against the button. The second elastic element allows the button to spring back to its original state after being pressed and released.

[0013] Furthermore, the button is rotatably connected to the first end of the connecting rod, the button is movably connected to the first end of the connecting rod, the middle part of the connecting rod is movably connected to the wall of the hole in the fixed channel, and the second end of the connecting rod abuts against the upper end of the actuating element.

[0014] Furthermore, the filter module has an installation channel, the lower opening of which is connected to the card hole, the upper opening of which is connected to the fixing channel, the upper end of the actuating element is disposed in the fixing channel through a third elastic element, and the lower end of the actuating element is located in the installation channel.

[0015] To facilitate the removal of the filter module from the housing, preferably, the cross-section of the lower end of the actuator gradually increases from bottom to top and forms a slope on the outer side. Correspondingly, the second end surface of the buckle protrudes outward in a smooth arc shape, and the edge of the buckle opening expands outward to form a chamfer. When the actuator moves downward, the slope presses against the arc-shaped surface of the buckle, causing the buckle to move outward from the buckle opening. When the actuator moves downward until the arc-shaped surface of the buckle slides out of the slope, the arc-shaped surface of the buckle contacts the chamfer at the edge of the buckle opening. The user then lifts the filter module upward, causing the arc-shaped surface of the buckle to slide relative to the chamfer, and the buckle slides out of the buckle opening, completing the separation of the filter module from the housing.

[0016] To facilitate user installation of the filter module, preferably, the thickness of the lateral surface of the filter module with the locking hole gradually decreases from top to bottom. Correspondingly, the inner wall of the housing protrudes inward to form a sliding guide surface adapted to the lateral surface of the filter module, and the thickness of the sliding guide surface gradually increases from top to bottom. Users can slide the filter module into or out of the housing along the sliding guide surface to complete installation or removal.

[0017] To prevent the filter module from wobbling after installation, preferably, the lower end of the sliding guide surface has a mounting portion that connects to the inner wall of the housing. The bottom end of the filter module protrudes downward to form a limiting portion, and the bottom of the mounting portion is recessed downward to form a limiting groove, which is adapted to the filter module. The cooperation between the limiting groove and the limiting portion restricts the radial movement of the filter module.

[0018] To prevent leakage after disassembly, the filter module preferably includes a sealing portion within the limiting portion. This sealing portion has a water inlet and an outlet extending vertically through it, as well as a cavity formed within the filter module that communicates with the water inlet and outlet. The cavity includes:

[0019] A water inlet control chamber is connected to the water inlet hole, and a first anti-reverse component is provided therein for controlling the flow and interruption states of the water inlet hole.

[0020] The treatment chamber is connected to the water inlet control chamber. The treatment chamber is filled with ion exchange resin to soften the water flowing through it.

[0021] The water outlet control chamber is connected to the water outlet and the treatment chamber. The water outlet control chamber is also equipped with a second check valve assembly for controlling the flow and interruption of the water flow with the water outlet. The design of the first and second check valve assemblies prevents water leakage from the water inlet and outlet after the user disassembles the filter module.

[0022] To ensure the filter module is leak-proof after installation, preferably, the bottom of the limiting groove is provided with a hollow inlet connecting foot and a hollow outlet connecting foot. The inlet connecting foot can be inserted into the inlet hole, and the outlet connecting foot can be inserted into the outlet hole. The upper ends of both the inlet and outlet connecting feet are higher than the upper surface of the bottom of the limiting groove. A first flow hole is radially through the upper edge of the inlet connecting foot, and a second flow hole is radially through the upper edge of the outlet connecting foot. The lower ends of both the inlet and outlet connecting feet are exposed on the lower surface of the limiting groove. Correspondingly, the sealing part has a first sealing ring and a second sealing ring that are interference-fitted with the outer periphery of the upper ends of the inlet and outlet connecting feet.

[0023] Furthermore, the first anti-reverse component includes:

[0024] The first piston is located at the bottom of the water inlet control chamber and the water outlet control chamber, and is interference-fitted with the water inlet hole at the connection point with the water inlet control chamber.

[0025] The fourth elastic element is vertically disposed in the water inlet control chamber and is used to connect the upper end of the first piston and the cavity wall of the water inlet control chamber.

[0026] The second anti-reverse component includes:

[0027] The second piston is located at the bottom of the water outlet control chamber and is interference-fitted with the water outlet hole at the connection point between the water outlet and the water outlet control chamber.

[0028] The fifth elastic element is vertically disposed inside the water outlet control chamber and is used to connect the upper end of the second piston and the cavity wall of the water outlet control chamber.

[0029] Compared with the prior art, the advantages of this utility model are as follows: Users of this water softening device can fix the filter module inside the housing by snapping it into the snap hole, thus completing the installation of the filter module inside the housing; users can also push the snap out of the snap hole by pressing the button to drive the connecting rod and the contact element, thus releasing the connection between the filter module and the housing, and users can pull the filter module out of the housing to complete the disassembly of the filter module and the housing, which has the advantage of convenient disassembly and assembly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the filter module structure according to an embodiment of the present utility model;

[0032] Figure 3 This is a longitudinal cross-sectional view of an embodiment of the present utility model;

[0033] Figure 4 This is a longitudinal cross-sectional view of another embodiment of the present utility model;

[0034] Figure 5 for Figure 3 Longitudinal cross-sectional view of some components;

[0035] Figure 6 for Figure 3 Enlarged view of section A in the middle;

[0036] Figure 7 for Figure 3 Enlarged view of section B in the middle. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] like Figures 1-7The image shows a preferred embodiment of this utility model. This water softening device is mainly used for water softening and filtering impurities from the water. When the filter medium is ion exchange resin, the module in the water softening device that houses the filter medium needs to be easily and individually replaceable. Therefore, it is beneficial to provide a water softening device that allows for easy replacement of the resin filter module. The structure of this water softening device will be described below:

[0039] See Figures 1 to 6 The water softening device includes a housing 1, a filter module 2 disposed within the housing 1, and an ion exchange resin 20 disposed within the filter module 2. The filter module 2 has a side-mounted locking hole 21. The filter module 2 is disposed within the housing 1 via a locking assembly 3, which includes a buckle 31, a button 32, an actuating element 33, and a connecting rod 34. The buckle 31 is elastically disposed on the inner wall of the housing 1 and can extend into the locking hole 21. The button 32 is elastically disposed on the filter module 2. The actuating element 33 is vertically disposed on the filter module 2 and can drive the buckle 31 to disengage from the locking hole 21. The connecting rod 34 is rotatably disposed on the filter module 2. One end of the connecting rod 34 is connected to the button 32, and the other end is connected to or abuts against the actuating element 33. When the button 32 is pressed, it can drive the connecting rod 34 to rotate, thereby driving the actuating element 33 to descend. The actuating element 33 drives the buckle 31 to disengage from the locking hole 21, and the filter module 2 is separated from the housing 1. The housing 1 includes a body for accommodating the filter module 2 and a cover movably connected to the upper end of the housing 1.

[0040] In this embodiment, a groove 11 is provided laterally on the inner wall of the housing 1. A first elastic element 111 is provided at the bottom of the groove 11, and the first elastic element 111 is connected to or abuts against the first end of the buckle 31. The first elastic element 111 enables the buckle 31 to move repeatedly inside and outside the groove 11, thus enabling the buckle 31 to be reused. The first elastic element 111 is connected to the first end of the buckle 31.

[0041] In this embodiment, the locking component 3 is mounted on the filter module 2 via a fixing part 4. A fixing channel 41 is formed within the fixing part 4. The button 32 is at least partially exposed at the opening at the first end of the fixing channel 41. A second elastic member 42 is vertically mounted on the channel wall within the opening at the first end of the fixing channel 41. The second elastic member 42 is connected to or abuts against the button 32. The second elastic member 42 allows the button 32 to spring back to its original state after being pressed, enabling the button 32 to be reused. The second elastic member 42 is connected to the button 32.

[0042] In this embodiment, the button 32 is movably connected to the first end of the connecting rod 34, the middle part of the connecting rod 34 is movably connected to the hole wall of the fixed channel 41, and the second end of the connecting rod 34 abuts against the upper end of the actuating member 33.

[0043] The filter module 2 in this embodiment has an installation channel 22. The lower opening of the installation channel 22 is connected to the card hole 21, and the upper opening of the installation channel 22 is connected to the fixed channel 41. The upper end of the actuating member 33 is disposed in the fixed channel 41 through the third elastic member 43, and the lower end of the actuating member 33 is located in the installation channel 22.

[0044] In this embodiment, the cross-section of the lower end of the actuating member 33 gradually increases from bottom to top and forms a slope 331 on the outer side. Correspondingly, the second end surface of the buckle 31 protrudes outward in a smooth arc shape, and the edge of the opening of the buckle hole 21 expands outward to form a chamfer 211. When the actuating member 33 moves downward, the slope 331 presses against the arc surface of the buckle 31, and the buckle 31 is pressed and moves outward from the buckle hole 21. When the actuating member 33 moves downward until the arc surface of the buckle 31 slides out of the slope 331, the arc surface of the buckle 31 contacts the chamfer 211 at the edge of the opening of the buckle hole 21. The user lifts the filter module 2 upward so that the arc surface of the buckle 31 slides relative to the chamfer 211, and the buckle 31 slides out of the buckle hole 21, completing the separation of the filter module 2 from the housing 1, so that the filter module 2 can be removed from the housing 1.

[0045] In this embodiment, the thickness of the lateral surface of the filter module 2 with the card hole 21 gradually decreases from top to bottom. Correspondingly, the inner wall of the housing 1 protrudes inward to form a sliding guide surface 12 that is adapted to the lateral surface of the filter module 2. The thickness of the sliding guide surface 12 gradually increases from top to bottom.

[0046] In this embodiment, the lower end of the sliding guide surface 12 is provided with a mounting portion 13 that connects to the inner wall of the housing 1. The bottom end of the filter module 2 protrudes downward to form a limiting portion 23, and the bottom of the mounting portion 13 is recessed downward to form a limiting groove 131, which is adapted to the filter module 2. The cooperation between the limiting groove 131 and the limiting portion 23 restricts the radial movement of the filter module 2, preventing it from shaking after installation. The lower part of the sliding guide surface 12 also partially surrounds the filter module 2 to form a guide cylinder.

[0047] The filter module 2 of this embodiment includes a sealing part 24 disposed within the limiting part 23. The sealing part 24 is provided with an inlet hole 241 and an outlet hole 242 extending vertically through it, as well as a cavity formed within the filter module 2 that communicates with the inlet hole 241 and the outlet hole 242. The cavity includes an inlet control cavity 25, a processing cavity 26, and an outlet control cavity 27. The inlet control cavity 25 communicates with the inlet hole 241 and is provided with a first check valve component 261 for controlling the flow and interruption of the flow with the inlet hole 241. The processing cavity 26 communicates with the inlet control cavity 25 and is filled with ion exchange resin 20 for softening the flowing water. The outlet control cavity 27 communicates with the outlet hole 242 and the processing cavity 26 and is provided with a second check valve component 262 for controlling the flow and interruption of the flow with the outlet hole 242. The first check valve assembly 261 and the second check valve assembly 262 prevent water from leaking out of the inlet hole 241 and the outlet hole 242 after the user disassembles the filter module 2, ensuring that the filter module 2 does not leak after disassembly. An inlet buffer chamber is provided between the inlet control chamber 25 and the processing chamber 26 to guide water flow to the processing chamber 26, and an outlet buffer chamber is provided between the outlet control chamber 27 and the processing chamber 26 to collect water flowing from the outlet control chamber 27 and guide it back to the processing chamber 26.

[0048] See Figure 4 and Figure 7 In this embodiment, the bottom of the limiting groove 131 is provided with a hollow inlet connecting foot 1311 and a hollow outlet connecting foot 1312. The inlet connecting foot 1311 can be inserted into the inlet hole 241, and the outlet connecting foot 1312 can be inserted into the outlet hole 242. The upper ends of both the inlet connecting foot 1311 and the outlet connecting foot 1312 are higher than the upper surface of the bottom of the limiting groove 131, and a first flow hole is radially provided along the upper edge of the inlet connecting foot 1311. 1313, a second flow hole 1314 is radially provided along the upper edge of the water outlet connecting foot 1312. The lower ends of the water inlet connecting foot 1311 and the water outlet connecting foot 1312 are exposed on the lower surface of the limiting groove 131. Correspondingly, the sealing part 24 has a first sealing ring 2411 and a second sealing ring 2421 that are interference-fitted with the outer periphery of the upper ends of the water inlet connecting foot 1311 and the water outlet connecting foot 1312, so that the filter module 2 does not leak after installation. The surface of the shell is provided with a main water outlet and a main water inlet. The main water outlet is connected to the lower end of the water outlet connecting foot 1312 through a water outlet flow pipe, and the main water inlet is connected to the lower end of the water inlet connecting foot 1311 through a water inlet flow pipe. The main water outlet is connected to the inside of the dishwasher through an external water pipe, and the main water inlet is connected to an external water source through an external water pipe.

[0049] The first anti-reverse assembly 261 of this embodiment includes a piston 2611 and a fourth elastic member 2612. The piston 2611 is located at the bottom of the water inlet control chamber 25 and the water outlet control chamber 27, and is interference-fitted with the water inlet hole 241 at the connection with the water inlet control chamber 25. The fourth elastic member 2612 is vertically disposed in the water inlet control chamber 25 and is used to connect the upper end of the first piston 2611 and the cavity wall of the water inlet control chamber 25. The second anti-reverse assembly 262 includes a second piston 2621 and a fifth elastic member 2622. The second piston 2621 is located at the bottom of the water outlet control chamber 27 and is interference-fitted with the water outlet hole 242 at the connection with the water outlet control chamber 27. The fifth elastic member 2622 is vertically disposed in the water outlet control chamber 27 and is used to connect the upper end of the second piston 2621 and the cavity wall of the water outlet control chamber 27.

[0050] The working principle of this embodiment is as follows:

[0051] 1) When installing filter module 2, the user opens the cover and adjusts the position of filter module 2 so that the side with the locking hole 21 is vertically aligned with the buckle 31. The filter module 2 is then slid into the limiting groove 131 along the sliding guide surface 12. During this process, the buckle 31 is pressed into the groove 11 by the surface of filter module 2, and the first elastic element 111 is compressed. The water inlet connecting foot 1311 and water outlet connecting foot 1312 at the bottom of the limiting groove 131 approach the water inlet hole 241 and water outlet hole 242. When the limiting part 23 of filter module 2 is inserted... When the limiting groove 131 is in place, the inlet connecting foot 1311 and the outlet connecting foot 1312 are inserted into the inlet hole 241 and the outlet hole 242, the first piston 2611 and the second piston 2621 move upward, the fourth elastic element 2612 and the fifth elastic element 2622 are compressed, and the inlet connecting foot 1311 and the outlet connecting foot 1312 are connected to the inlet control chamber 25 and the outlet control chamber 27; at the same time, the buckle 31 is inserted into the locking hole 21, the first elastic element 111 relaxes and resets, and forms a self-locking structure with the locking hole 21. The filter module 2 is installed and the cover is closed.

[0052] 2) When the user disassembles the filter module 2, open the cover and press the button 32 inward. The second elastic element 42 is compressed, and the button 32 moves upward, causing one end of the connecting rod 34 to press the trigger 33 downward. The third elastic element 43 is compressed, and the lower end of the trigger 33's inclined surface 331 presses the arc-shaped surface of the buckle 31. The first elastic element 111 is compressed. Continue to press the button 32 inward until the buckle 31 is squeezed out of the locking hole 21. The gripping and fixing part 4 lifts the filter module 2 upward and continues to press the button 32. The surface of the filter module 2 slides out of the housing 1 along the sliding guide surface 12. During this process, the water inlet connecting foot 1311 and the water outlet connecting foot 1312 are pulled out of the water inlet hole 241 and the water outlet hole 241. Hole 242, the first piston 2611 and the second piston 2621 are respectively subjected to the force of the fourth elastic element 2612 and the fifth elastic element 2622 to restore their deformation and move downward to block the water inlet hole 241 and the water outlet hole 242, thus isolating the water inlet control chamber 25 and the water outlet control chamber 27 from the outside. When the filter module 2 is completely slid out of the housing 1, the buckle 31 is no longer squeezed by the filter module 2 and pops out from the buckle hole 21. When the button 32 is released, the button 32 is subjected to the force of the second elastic element 42 to restore its deformation and move downward, driving the connecting rod 34. The actuating element 33 is moved upward to reset by the force of the third elastic element 43 to restore its deformation. The lower end of the actuating element 33 moves out of the buckle hole 21, and the disassembly is completed.

[0053] 3) Water flow sequence after installation: The user connects the main water outlet to the dishwasher water supply port and the main water inlet to the external water source. After opening the external water source, the water enters the water inlet control chamber 25 through the first flow hole 1313 of the water inlet connector 1311 and flows into the treatment chamber 26. The hard water is fully contacted with the ion exchange resin 20 in the treatment chamber 23 to obtain soft water. The soft water flows into the water outlet control chamber 27, passes through the second flow hole 1314 and the water outlet connector 1312, and then flows out of the main water outlet to enter the dishwasher cleaning equipment.

[0054] Users of this water softening device can slide the filter module 2 into the housing 1 along the sliding guide surface 12, and fix the filter module 2 in the housing 1 by engaging it with the buckle 31 in the buckle hole 21, thus completing the installation of the filter module 2 in the housing 1; users can also push the buckle out of the buckle hole 21 by pressing the button 32 to drive the connecting rod 34 and the contact element 33, thereby disconnecting the filter module 2 from the housing 1, and users can pull the filter module 2 out of the housing 1 along the sliding guide surface 12 to complete the disassembly of the filter module 2 from the housing 1, which has the advantage of convenient disassembly and assembly.

Claims

1. A water softening device, comprising a housing (1), a filter module (2) disposed within the housing (1), and an ion exchange resin (20) disposed within the filter module (2), characterized in that... The filter module (2) has a lateral locking hole (21); the filter module (2) is disposed inside the housing (1) by a locking component (3), the locking component (3) comprising: The buckle (31) is elastically disposed on the inner wall of the housing (1) and can extend into the buckle hole (21); Button (32) is flexibly disposed on the filter module (2); A trigger (33) is vertically mounted on the filter module (2) and can drive the buckle (31) to disengage from the slot (21); and The connecting rod (34) is rotatably mounted on the filter module (2), with one end connected to the button (32) and the other end connected to or abutting against the touch element (33). When the aforementioned button (32) is pressed, it can drive the connecting rod (34) to rotate, which in turn drives the trigger (33) to descend. The trigger (33) drives the buckle (31) to disengage from the card hole (21), and the filter module (2) separates from the housing (1).

2. The water softening device according to claim 1, characterized in that... The inner wall of the housing (1) is provided with a groove (11) in the horizontal direction. The bottom of the groove (11) is provided with a first elastic element (111). The first elastic element (111) is connected to or abuts against the first end of the buckle (31).

3. The water softening device according to claim 2, characterized in that... The locking component (3) is mounted on the filter module (2) via a fixing part (4). A fixing channel (41) is formed in the fixing part (4). The button (32) is at least partially exposed at the opening at the first end of the fixing channel (41). A second elastic member (42) is vertically provided on the channel wall inside the opening at the first end of the fixing channel (41). The second elastic member (42) is connected to or abuts against the button (32).

4. The water softening device according to claim 3, characterized in that... The button (32) is movably connected to the first end of the connecting rod (34), the middle part of the connecting rod (34) is movably connected to the hole wall of the fixed channel (41), and the second end of the connecting rod (34) abuts against the upper end of the trigger (33).

5. The water softening device according to claim 4, characterized in that... The filter module (2) has an installation channel (22). The lower opening of the installation channel (22) is connected to the card hole (21), and the upper opening of the installation channel (22) is connected to the fixed channel (41). The upper end of the actuating member (33) is located in the fixed channel (41) through a third elastic member (43), and the lower end of the actuating member (33) is located in the installation channel (22).

6. The water softening device according to claim 5, characterized in that... The cross-section of the lower end of the trigger (33) gradually increases from bottom to top and forms a bevel (331) on the outside. Correspondingly, the second end surface of the buckle (31) protrudes outward in a smooth arc shape, and the opening edge of the card hole (21) expands outward to form a chamfer (211).

7. The water softening device according to claim 1, characterized in that... The thickness of the lateral surface of the filter module (2) with the card hole (21) gradually decreases from top to bottom. Correspondingly, the inner wall of the housing (1) protrudes inward to form a sliding guide surface (12) that is adapted to the lateral surface of the filter module (2). The thickness of the sliding guide surface (12) gradually increases from top to bottom.

8. The water softening device according to claim 7, characterized in that... The lower end of the sliding guide surface (12) is provided with an installation part (13) that is connected to the inner wall of the housing (1). The bottom end of the filter module (2) protrudes downward to form a limiting part (23). The bottom of the installation part (13) is recessed downward to form a limiting groove (131). The limiting groove (131) is adapted to the filter module (2).

9. The water softening device according to claim 8, characterized in that... The filter module (2) includes a sealing part (24) disposed within the limiting part (23). The sealing part (24) has a water inlet (241) and a water outlet (242) extending vertically through it, as well as a cavity formed within the filter module (2) communicating with the water inlet (241) and the water outlet (242). This cavity includes: The water inlet control chamber (25) is connected to the water inlet hole (241), and a first check valve assembly (261) is provided therein for controlling the flow and interruption states of the water inlet hole (241); The treatment chamber (26) is connected to the water inlet control chamber (25). The treatment chamber (26) is filled with ion exchange resin (20) for softening the water flowing through it. The water outlet control chamber (27) is connected to the water outlet hole (242) and the treatment chamber (26). The water outlet control chamber (27) is provided with a second check valve assembly (262) for controlling the flow and interruption states of the water outlet hole (242).

10. The water softening device according to claim 9, characterized in that... The bottom of the limiting groove (131) is provided with a hollow inlet connecting foot (1311) and a hollow outlet connecting foot (1312). The inlet connecting foot (1311) can be inserted into the inlet hole (241), and the outlet connecting foot (1312) can be inserted into the outlet hole (242). The upper ends of both the inlet connecting foot (1311) and the outlet connecting foot (1312) are higher than the upper surface of the bottom of the limiting groove (131), and the upper edge of the inlet connecting foot (1311) extends radially through... A first flow hole (1313) is provided through the ground, and a second flow hole (1314) is provided radially through the upper edge of the water outlet connecting foot (1312). The lower ends of the water inlet connecting foot (1311) and the water outlet connecting foot (1312) are exposed on the lower surface of the limiting groove (131). Correspondingly, the sealing part (24) has a first sealing ring (2411) and a second sealing ring (2421) that are interference-fitted with the outer periphery of the upper end of the water inlet connecting foot (1311) and the water outlet connecting foot (1312).

11. The water softening device according to claim 9, characterized in that... The first anti-reverse component (261) includes: The first piston (2611) is located at the bottom of the water inlet control chamber (25) and is interference-fitted with the water inlet hole (241) at the connection between the water inlet control chamber (25); The fourth elastic element (2612) is vertically disposed in the water inlet control chamber (25) for connecting the upper end of the first piston (2611) and the cavity wall of the water inlet control chamber (25); The second anti-reverse component (262) includes: The second piston (2621) is located at the bottom of the water outlet control chamber (27) and is interference-fitted with the water outlet hole (242) at the connection between the water outlet control chamber (27); The fifth elastic element (2622) is vertically disposed in the water outlet control chamber (27) and is used to connect the upper end of the second piston (2621) and the cavity wall of the water outlet control chamber (27).

Images