A cold and hot integrated water purifier with filter core convenient to replace

Abstract

The utility model discloses a cold and hot integrated water purifier convenient to replace filter core, including the body, be equipped with filter core subassembly in the body, and be used for heating hot water's heating unit, the filter core subassembly includes the filter core shell fixed in the body, the filter unit of being placed in the filter core shell, and the filter core cover of screwing on the filter core shell, the detachable cover of being provided with on the body, and when the cover is separated from the body, the filter core cover is exposed on the body, the utility model discloses the quick replacement and maintenance of filter core, simple operation improves the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a hot and cold integrated water purifier that is easy to replace the filter element. Background Technology

[0002] A water purifier is a household or commercial device that filters and purifies tap water or other water sources. Its main function is to remove impurities, suspended particles, residual chlorine, organic matter, heavy metals, bacteria and microorganisms from the water, thereby improving water quality and enhancing the safety and taste of drinking water.

[0003] The existing water purifier filter cartridges are either integrally embedded or fixed through the water inlet. When replacing them, it is often necessary to disassemble the filter cartridge housing or disconnect the water pipe joint. Not only are the operation steps cumbersome, but ordinary users also find it difficult to do it themselves, which can easily lead to leaks, improper installation, and other problems, affecting the user experience and maintenance efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a hot and cold water purifier that facilitates filter replacement, enabling rapid filter replacement and maintenance, simple operation, and improved ease of use.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hot and cold integrated water purifier with easy filter replacement, comprising a body, wherein a filter assembly is provided in the body, and a heating unit for heating hot water; the filter assembly includes a filter housing fixed in the body, a filter unit placed in the filter housing, and a filter cover screwed onto the filter housing, wherein a cover plate is detachably provided on the body, and when the cover plate is detached from the body, the filter cover is exposed on the body.

[0006] By adopting the above technical solution and using a detachable filter element structure, users only need to open the filter element housing to remove the filter unit, thereby avoiding the problem of disassembling water pipes and complicated operations when replacing filter elements in traditional water purifiers. This enables quick replacement and maintenance of filter elements and improves ease of use.

[0007] The present invention is further configured such that: the body includes a support frame and mounting side plates disposed on both sides of the support frame, the support frame having a plurality of mounting grooves, and the filter element housing being inserted into the mounting grooves.

[0008] By adopting the above technical solution, the filter element shell is installed from top to bottom in the first and second mounting slots on the support frame, which facilitates positioning and installation, as well as subsequent maintenance or disassembly, and is more conducive to production assembly and modular design.

[0009] The present invention is further configured such that: a limiting stop is formed on the outer periphery of the filter element shell, and the limiting stop abuts against the support frame.

[0010] By adopting the above technical solution, by setting an opening at the upper end of the filter element housing and installing a filter element cover, and with the limiting effect of the limiting edge and the mounting groove, not only is the installation position of the filter element housing accurate and shaking prevented, but the filter element cover can also achieve sealing and dust prevention, thereby improving structural reliability.

[0011] The present invention is further configured such that: a positioning rib is formed on the outer periphery of the filter element shell, and a positioning groove is formed on the mounting groove for the positioning rib to be inserted.

[0012] By adopting the above technical solution and setting the insertion and matching structure of positioning groove and positioning rib, the filter element shell and the mounting groove can be quickly aligned, simplifying the installation process, avoiding installation errors, and improving assembly efficiency and consistency.

[0013] The present invention is further configured such that: a fixing lug is formed on the filter element housing, and a fixing post is formed on the support frame and the mounting side plate to connect the fixing lug.

[0014] By adopting the above technical solution, the bottom of the filter element shell is fixed to the fixing lug and the fixing post screw on the mounting side plate, so that the filter element shell and the machine body form a reliable fixed connection, avoiding the filter element from loosening due to vibration or impact, and improving the overall structural stability.

[0015] The present invention is further configured such that: the support frame is provided with a positioning groove for inserting the filter cover, and the positioning groove is arranged in an arc shape.

[0016] By adopting the above technical solution, the filter cover can remain in position when screwed in or out, avoiding tilting or jamming, thereby improving the convenience of filter assembly disassembly and assembly.

[0017] The present invention is further configured such that: the filter element housing is provided in two parts; the filtration unit includes a first filter element and a second filter element respectively disposed in the two filter element housings; the first filter element is connected to a first water inlet, a second water inlet, a first water outlet, and a second water outlet, the first water inlet being used to introduce raw water; the second filter element is connected to a third water inlet and a third water outlet, the third water inlet being connected to the first water outlet of the first filter element, and the third water outlet being connected to the second water inlet of the first filter element; the heating unit is connected to the second water outlet of the first filter element.

[0018] By adopting the above technical solution, the two filtration units can filter sequentially, which can improve filtration efficiency and water quality, and finally enter the heating unit to realize the integration of purification and heating functions.

[0019] The present invention is further configured such that: the first filter element includes an upper cover, a lower cover, and an inner filter element and an outer filter element disposed between the upper cover and the lower cover; a partition is also provided between the upper cover and the lower cover to divide the inner cavity of the filter element shell into an outer cavity and an inner cavity; the outer filter element is disposed in the outer cavity, and the inner filter element is disposed in the inner cavity; the first water inlet is connected to the outer cavity outside the outer filter element, the first water outlet is connected to the outer cavity inside the outer filter element, the second water inlet is connected to the inner cavity outside the inner filter element, and the second water outlet is connected to the inner cavity inside the inner filter element.

[0020] By adopting the above technical solution, a partition is added inside the filter cartridge shell to form an outer cavity and an inner cavity, and an outer filter element and an inner filter element are respectively set up, so that the first water inlet, the first water outlet and the outer filter element form an external circulation filtration water path, and the second water inlet, the second water outlet and the inner filter element form an internal circulation filtration water path, thereby realizing step-by-step filtration and improving the pure water quality.

[0021] The present invention is further configured such that: the outer filter element is a pleated filter element made of PP material, the inner filter element is a carbon rod filter element, and the second filter element is an RO membrane filter element.

[0022] By adopting the above technical solution, the outer filter element is a combination of PP pleated filter element, the inner filter element is a carbon rod filter element, and the second filter element is an RO reverse osmosis membrane filter element, so that the whole machine forms a three-stage purification structure of pretreatment, deep filtration and reverse osmosis filtration, which has higher filtration accuracy and safer water quality.

[0023] The present invention is further configured such that: the heating unit includes a base, an inner liner and an outer liner disposed on the base, a vacuum insulation layer is formed between the inner liner and the outer liner, and a heating element is provided inside the base.

[0024] By adopting the above technical solution, the heating unit adopts a double-layer structure consisting of an inner liner and an outer liner, and forms a vacuum insulation layer between the two. This can effectively reduce heat loss and improve thermal efficiency, and, together with the heating element in the base, achieve rapid heating and long-term heat preservation, thereby reducing energy consumption.

[0025] In summary, this utility model has the following beneficial effects: 1. The first filter element adopts a detachable filter element housing design. Users do not need to disassemble water pipes or use tools. They can simply open the filter element cover to remove and replace the filter element housing, which greatly reduces maintenance difficulty and improves replacement efficiency.

[0026] 2. It features a three-stage filtration structure consisting of an external filter, an internal filter, and an RO membrane filter. This structure achieves coarse filtration, deep adsorption filtration, and precise reverse osmosis purification, effectively removing sediment, residual chlorine, heavy metals, bacteria, and viruses to ensure the purity of the effluent.

[0027] 3. The heating unit adopts a design structure with a vacuum insulation layer between the inner and outer liner, plus the heating element in the base, which has the characteristics of rapid heating, long heat preservation time and low energy loss. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the body of this utility model.

[0030] Figure 3 This is a schematic diagram of the structure of the filter element assembly and the first filter element of this utility model.

[0031] Figure 4 This is a cross-sectional view of the filter element assembly and the first filter element of this utility model.

[0032] Figure 5 This is an exploded view of the filter element assembly and the second filter element of this utility model.

[0033] Figure 6 This is a cross-sectional view of the heating unit of this utility model.

[0034] Figure 7 This is a schematic diagram of the waterway of this utility model.

[0035] In the diagram: 1. Main body; 11. Mounting side plate; 111. Fixing column; 12. Support frame; 121. Mounting groove; 122. Positioning groove; 123. Positioning rotating groove; 13. Cover plate; 14. Raw water solenoid valve; 15. Wastewater solenoid valve; 16. Hot water solenoid valve; 17. Pure water solenoid valve; 18. Stagnant water solenoid valve; 2. Filter element assembly; 21. Filter element housing; 211. Limiting flange; 212. Fixing lug; 213. Positioning rib; 214. First water inlet; 215. Second water inlet 216. First water outlet; 217. Second water outlet; 218. Third water inlet; 219. Third water outlet; 22. First filter element; 221. Top cover; 222. Bottom cover; 223. Inner filter element; 224. Outer filter element; 225. Partition; 226. Outer cavity; 227. Inner cavity; 23. Filter element cover; 24. Second filter element; 3. Water pump; 4. Heating unit; 41. Base; 42. Inner tank; 43. Outer tank; 44. Vacuum insulation layer; 45. Heating element. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] like Figures 1 to 3As shown, this utility model provides a water purifier with convenient filter replacement, including a body 1, a filter assembly 2 and a heating unit 4 for heating pure water inside the body 1. The filter assembly 2 includes a filter housing 21 fixedly installed inside the body 1, a filter unit placed inside the filter housing 21, and a filter cover 23 screwed onto the filter housing 21. A cover plate 13 is detachably installed on the outside of the body 1. After the cover plate 13 is removed, the filter cover 23 can be directly exposed above the body 1. The user can access the filter cover 23 without disassembling the structure of the body 1, thus facilitating the screwing, replacement and maintenance of the filter.

[0038] like Figure 2 As shown, the body 1 includes a support frame 12 and mounting side plates 11 disposed on both sides of the support frame 12. The support frame 12 is provided with a plurality of mounting slots 121. The filter element housing 21 is inserted into the mounting slots 121 from top to bottom to achieve stable positioning. A limiting stop 211 is formed on the outer periphery of the filter element housing 21. After being inserted into the mounting slots 121, the limiting stop 211 abuts against the support frame 12 to prevent the filter element housing 21 from shifting in the vertical direction and to ensure its accurate installation posture.

[0039] like Figures 2 to 5 As shown, in order to further improve the assembly accuracy and stability, a positioning rib 213 is also provided on the outer periphery of the filter element housing 21. A positioning groove 122 is formed on the mounting groove 121 to accommodate the positioning rib 213. The insertion and mating structure of the positioning rib 213 and the positioning groove 122 enables the filter element housing 21 to automatically complete the angle and direction correction during installation, effectively avoiding misalignment of the filter element housing 21 due to misplacement, and improving assembly consistency. A fixing lug 212 is provided at the bottom of the filter element housing 21, and a fixing post 111 is provided on the mounting side plate 11. The fixing lug 212 is connected to the fixing post 111 by screws, so that the filter element housing 21 and the body 1 form a firm fixed structure that can withstand vibration and impact during use. A positioning rotating groove 123 is also formed on the support frame 12 for the filter element cover 23 to be inserted. The positioning rotating groove 123 has an arc-shaped structure, so that the filter element cover 23 can be guided and supported during screwing in or out, improving the smoothness of filter element disassembly and assembly.

[0040] In this embodiment, two filter cartridge housings 21 are provided. The filtration unit includes a first filter cartridge 22 and a second filter cartridge 24 respectively placed inside the two filter cartridge housings 21. The first filter cartridge 22 has a first water inlet 214, a second water inlet 215, a first water outlet 216 and a second water outlet 217. The first water inlet 214 is used to introduce raw water. The second filter cartridge 24 has a third water inlet 218 and a third water outlet 219. The third water inlet 218 is connected to the first water outlet 216 of the first filter cartridge 22, and the third water outlet 219 is connected to the second water inlet 215 of the first filter cartridge 22. The filtered pure water enters the heating unit 4 from the second water outlet 217 of the first filter cartridge 22, realizing the integrated process of purification and heating.

[0041] like Figure 3 and Figure 4 As shown, the first filter element 22 includes an upper cover 221, a lower cover 222, and an inner filter element 223 and an outer filter element 224 disposed between the upper cover 221 and the lower cover 222. A partition 225 is provided between the upper cover 221 and the lower cover 222 to divide the internal space of the filter element housing 21 into an outer cavity 226 and an inner cavity 227. The outer filter element 224 is placed in the outer cavity 226, and the inner filter element 223 is placed in the inner cavity 227. The first inlet 214 is connected to the outer cavity 226 outside the outer filter element 224, and the first outlet 216 is connected to the outer cavity 226 inside the outer filter element 224. The second inlet 215 is connected to the inner cavity 227 outside the inner filter element 223, and the second outlet 217 is connected to the inner cavity 227 inside the inner filter element 223. With this structure, the first filter element 22 forms a dual filtration structure to achieve step-by-step purification of water quality.

[0042] The outer filter element 224 is a PP pleated filter element with a large filtration area, suitable for filtering particles such as silt and rust; the inner filter element 223 is a carbon rod filter element, which can adsorb odors, residual chlorine and other substances; the second filter element 24 is an RO membrane reverse osmosis filter element, which can further filter dissolved solids, bacteria and other tiny impurities. The multi-stage filtration system composed of the three elements can significantly improve the water purification effect and make the output water quality higher and safer.

[0043] like Figure 6 As shown, the heating unit 4 includes a base 41 and an inner liner 42 and an outer liner 43 disposed on the base 41. A vacuum insulation layer 44 is formed between the inner liner 42 and the outer liner 43. A heating element 45 is disposed inside the base 41. When pure water enters the inner liner 42 inside the heating unit 4, the heating element 45 heats the water. The vacuum insulation layer 44 effectively reduces heat loss, thereby improving heating efficiency and providing good heat preservation performance.

[0044] like Figure 1 and Figure 7As shown, the machine body 1 is also equipped with a water pump 3 and multiple solenoid valves. The water pump 3 is used to provide inlet water pressure. The solenoid valves are installed at different water circuit nodes to realize the switching control between raw water inlet, RO membrane flushing, and pure water and hot water supply. These include a raw water solenoid valve 14 for controlling the inlet of raw water, a wastewater solenoid valve 15 for controlling the discharge of RO membrane wastewater, a hot water solenoid valve 16 for controlling the heating, a pure water solenoid valve 17 for controlling the pure water output, and a stale water solenoid valve 18 for discharging stale water. The raw water solenoid valve 14 is arranged on the inlet pipe before the raw water enters the first filter element 22 and is used to control the timing and amount of raw water entering the device. When the water purifier starts the water purification program, the raw water solenoid valve 14 opens, allowing... Tap water enters the first filter element 22 for preliminary filtration; wastewater solenoid valve 15 is installed on the wastewater discharge pipe of the second filter element 24, which is an RO membrane filter element. Wastewater is generated during the filtration process. Wastewater solenoid valve 15 is used to control the opening and closing of wastewater discharge. When the wastewater generated by RO membrane filtration needs to be discharged, wastewater solenoid valve 15 opens to discharge the wastewater to the external wastewater network; hot water solenoid valve 16 is installed at the inlet end of the heating tank to control the heating of the filtered water; pure water solenoid valve 17 is connected to the outlet end of the heating tank and the first filter element 22 to control the final output of filtered water; stale water solenoid valve 18 is installed on the stale water discharge pipe of the second filter element 24 to discharge stale water that has not been used for a long time.

[0045] The basic working principle of this utility model is as follows: When the water purifier is started, the raw water first enters the first filter element 22 set in the body 1 under the control of the water pump 3 and the raw water solenoid valve 14. The outer filter element 224 of the first filter element 22 performs primary filtration, and then enters the RO membrane of the second filter element 24 for reverse osmosis filtration. Then it returns to the inner filter element 223 of the first filter element 22 for deep filtration. The filtered pure water enters the heating unit 4, and the wastewater is discharged through the wastewater solenoid valve 15. The heating unit 4 heats and stores the incoming pure water. When the user takes hot water or room temperature pure water, the pure water solenoid valve 17 is opened to supply water. When the user needs to replace the filter unit, the cover plate 13 at the top of the body 1 is opened to see the first filter element 22 and the second filter element 24. The user only needs to rotate the filter element cover 23 to open the filter element housing 21, and directly pull out or lift the filter unit from the filter element housing 21. The new filter unit is then placed into the filter element housing 21 in the original direction to complete the replacement of the filter unit.

[0046] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A water purifier with both hot and cold water and easy-to-replace filter cartridge, comprising a body (1), characterized in that: The body (1) is equipped with a filter element assembly (2) and a heating unit (4) for heating hot water; The filter element assembly (2) includes a filter element housing (21) fixed inside the body (1), a filter unit placed inside the filter element housing (21), and a filter element cover (23) screwed onto the filter element housing (21). The body (1) is detachably provided with a cover plate (13), and when the cover plate (13) is detached from the body (1), the filter element cover (23) is exposed on the body (1).

2. A water purifier with integrated hot and cold water and easy-to-replace filter element as described in claim 1, characterized in that: The body (1) includes a support frame (12) and mounting side plates (11) disposed on both sides of the support frame (12). The support frame (12) has a plurality of mounting slots (121) formed thereon, and the filter cartridge housing (21) is inserted into the mounting slots (121).

3. A hot and cold integrated water purifier with easy filter replacement according to claim 2, characterized in that: The filter housing (21) has a limiting stop (211) formed on its outer periphery, and the limiting stop (211) abuts against the support frame (12).

4. A hot and cold integrated water purifier with easy filter replacement according to claim 2, characterized in that: The outer periphery of the filter element housing (21) is formed with positioning ribs (213), and the mounting groove (121) is formed with positioning grooves (122) for the positioning ribs (213) to be inserted.

5. A hot and cold integrated water purifier with easy filter replacement according to claim 2, characterized in that: A fixing lug (212) is formed on the filter housing (21), and a fixing post (111) connecting the fixing lug (212) is formed on the support frame (12) and the mounting side plate (11).

6. A hot and cold integrated water purifier with easy filter replacement according to claim 2, characterized in that: The support frame (12) is configured to allow the filter element cover (23) to be placed into the positioning groove (123), and the positioning groove (123) is arranged in an arc shape.

7. A hot and cold integrated water purifier with easy filter replacement according to claim 1, characterized in that: The filter housing (21) is provided in two parts, and the filter unit includes a first filter element (22) and a second filter element (24) respectively disposed in the two filter housings (21); The first filter element (22) is connected to a first water inlet (214), a second water inlet (215), a first water outlet (216), and a second water outlet (217). The first water inlet (214) is used to introduce raw water. The second filter element (24) is connected to a third inlet (218) and a third outlet (219). The third inlet (218) is connected to the first outlet (216) of the first filter element (22), and the third outlet (219) is connected to the second inlet (215) of the first filter element (22). The heating unit (4) is connected to the second outlet (217) of the first filter element (22).

8. A hot and cold integrated water purifier with easy filter replacement according to claim 7, characterized in that: The first filter element (22) includes an upper cover (221), a lower cover (222), and an inner filter element (223) and an outer filter element (224) disposed between the upper cover (221) and the lower cover (222); A partition (225) is provided between the upper cover (221) and the lower cover (222) to divide the inner cavity of the filter element housing (21) into an outer cavity (226) and an inner cavity (227); the outer filter element (224) is disposed in the outer cavity (226), and the inner filter element (223) is disposed in the inner cavity (227); The first inlet (214) is connected to the outer cavity (226) outside the outer filter element (224), the first outlet (216) is connected to the outer cavity (226) inside the outer filter element (224), the second inlet (215) is connected to the inner cavity (227) outside the inner filter element (223), and the second outlet (217) is connected to the inner cavity (227) inside the inner filter element (223).

9. A hot and cold integrated water purifier with easy filter replacement according to claim 8, characterized in that: The outer filter element (224) is a pleated filter element made of PP material, the inner filter element (223) is a carbon rod filter element, and the second filter element (24) is an RO membrane filter element.

10. A water purifier with integrated hot and cold water and easy-to-replace filter element as described in claim 1, characterized in that: The heating unit (4) includes a base (41), an inner liner (42) and an outer liner (43) disposed on the base (41), a vacuum insulation layer (44) is formed between the inner liner (42) and the outer liner (43), and a heating element (45) is provided inside the base (41).

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