A water purifier with a front filter horizontally arranged

Abstract

The utility model discloses a kind of front filter element transverse water purifier, including water purifier main body and external water tank, external water tank is equipped with the water supply line connected to water purifier main body, the water inlet of water supply line is inserted to water tank bottom, the water inlet of water supply line is connected with front filter element, front filter element is transversely placed in the bottom of external water tank, and front filter element outer wall is equipped with several water inlets. The utility model has the following advantages and effects: the scheme utilizes new mechanical structure, has the effect of reducing the filtration burden of water purifier main body, facilitating cleaning and maintenance of external water tank and water purifier main body, realizing concentrated water separation.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a water purifier with a horizontally placed pre-filter cartridge. Background Technology

[0002] A Chinese patent with publication number CN207108519U discloses a countertop water purifier, characterized by comprising a body and a water tank. The body is equipped with a filter element assembly, and the water tank is detachably mounted on the body, communicating with the filter element assembly to filter water in the water tank. A base for mounting the water tank is provided on the rear side of the body, and the base is provided with a water inlet and a drain outlet, both of which are communicating with the filter element assembly. The water tank is mounted on the base, and water in the water tank enters the filter element assembly through the water inlet, while wastewater generated by the filter element assembly enters the water tank through the drain outlet.

[0003] However, the aforementioned water purifier has the following drawbacks: the water tank of this water purifier does not have a pre-treatment filter element, which increases the filtration burden on the filter element components in the machine and leads to a shorter replacement cycle for the filter element components in the machine, which urgently needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a water purifier with a horizontally placed pre-filter, which reduces the filtration burden on the main body of the water purifier, facilitates the cleaning and maintenance of the external water tank and the main body of the water purifier, and achieves the effect of separating concentrated water from concentrated water.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a water purifier with a horizontally placed pre-filter cartridge, comprising a water purifier body and an external water tank, wherein the external water tank is provided with a water supply pipe connected to the water purifier body, the inlet of the water supply pipe extends to the bottom of the water tank, the inlet of the water supply pipe is connected to a pre-filter cartridge, the pre-filter cartridge is horizontally placed at the bottom of the external water tank, and the outer wall of the pre-filter cartridge is provided with a plurality of water inlet holes.

[0006] By adopting the above technical solutions, the external water tank can expand its capacity to meet greater water demand and reduce the inconvenience of frequent water replenishment. Simultaneously, the external water tank design allows for complete disassembly, cleaning, or repair, avoiding impact on the main water purifier unit and reducing the risk of malfunction and cleaning difficulty. The pre-filter pre-filters the water source before it enters the main water purifier unit, reducing the purifier's workload. Furthermore, the pre-filter's horizontal layout ensures that its inlet water is not limited by the water level in the main tank, allowing for the drainage of water above the pre-filter's inlet in the external water tank as much as possible. This improves the utilization rate of the water source in the external water tank, reduces residual water, and allows any remaining concentrated water in the external water tank to accumulate in the space below the pre-filter's inlet. This concentrated water can then be directly poured out, reducing the filtration burden on the main water purifier unit, facilitating the cleaning and maintenance of both the external water tank and the main water purifier unit, and achieving the effect of concentrated water separation.

[0007] A further feature of this invention is that the pre-filter includes a filter housing, a filter assembly, and a water outlet cap. The water outlet cap is provided with a sleeve portion, and the water outlet cap is inserted into the water inlet of the water supply pipeline through the sleeve portion.

[0008] By adopting the above technical solution and using a plug-in block method, the pre-filter can be detachably connected to the inlet of the water supply pipeline, improving the convenience of connection between the pre-filter and the water supply pipeline.

[0009] A further feature of this invention is that the end of the water outlet cap away from the insert portion extends into an annular connecting portion, and the filter housing is threadedly connected to the annular connecting portion.

[0010] By adopting the above technical solution, the threaded connection method can improve the ease of disassembly and assembly between the filter housing and the outlet end cover, and facilitate the maintenance or replacement of the filter element assembly.

[0011] A further feature of this invention is that the filter element assembly includes a central tube and a filter element wrapped around the central tube. The central tube is axially disposed in the inner cavity of the filter shell. The central tube has a closed end and an open end. The open end communicates with the insert portion. The side wall of the central tube is provided with a plurality of water passage holes. The filter shell is provided with a plurality of water inlet holes.

[0012] By adopting the above technical solution, the water source in the external water tank flows into the inner cavity of the filter shell through the water inlet, and then flows into the central pipe through the water outlet after being filtered by the filter element. After that, it enters the water supply pipeline through the sleeve part from the open end of the central pipe.

[0013] A further feature of this invention is that the water outlet cap is provided with an annular insertion part corresponding to the central tube, and the central tube is inserted into the annular insertion part.

[0014] By adopting the above technical solution, the plug-in installation method facilitates the rapid connection between the central pipe and the annular plug-in part of the outlet end cap.

[0015] A further feature of this invention is that the main body of the water purifier is provided with a concentrated water return pipe, and the outlet end of the concentrated water return pipe is connected to the external water tank.

[0016] By adopting the above technical solution, the concentrated water produced by the main filtration of the water purifier can be returned to the external water tank for reuse, thereby improving the efficiency of water source utilization of this utility model.

[0017] A further feature of this invention is that the outlet end of the concentrated water return pipeline is connected to a scale inhibitor, and the scale inhibitor is filled with a scale inhibitor.

[0018] By adopting the above technical solution, the scale inhibitor can prevent scale buildup in the external water tank and inside the water purifier body.

[0019] A further feature of this invention is that: the bottom of the external water tank is provided with a plurality of positioning sleeves, the water supply pipe and the return pipe are provided with positioning parts corresponding to the positioning sleeves, the positioning parts are inserted and positioned corresponding to the positioning sleeves, and a damping anti-slip ring is provided between the positioning parts and the positioning sleeves.

[0020] By adopting the above technical solution, the water supply pipeline and return pipeline are fixed in the positioning sleeve at the bottom of the external water tank by inserting the positioning part at the bottom, and the positioning stability between the corresponding positioning part and the positioning sleeve is improved by utilizing the frictional resistance of the corresponding damping anti-slip ring.

[0021] A further feature of this invention is that a concentrated water accumulation space is formed between the pre-filter element and the bottom of the external water tank.

[0022] By adopting the above technical solution, as the liquid level in the external water tank gradually decreases, the heavy component impurities in the external water tank slowly settle in the concentrated water accumulation space at the bottom. When the liquid level in the external water tank is lower than that of the pre-filter, the high-concentration residual water in the concentrated water accumulation space cannot be pumped into the main body of the water purifier for use. At this time, the concentrated water in the concentrated water accumulation space can be poured out directly, achieving the purpose of concentrated water separation.

[0023] A further feature of this invention is that the concentrated water collection space occupies 1 / 4 to 1 / 3 of the total volume of the external water tank.

[0024] In summary, this utility model has the following beneficial effects:

[0025] The water purifier features an external water tank with a pre-filter horizontally positioned at the bottom. The pre-filter's outlet connects to the main body of the water purifier via a water supply pipe. This external water tank design allows for increased water capacity to accommodate larger water demands, reducing the inconvenience of frequent refills. Furthermore, the external tank design enables complete disassembly for cleaning and maintenance, preventing damage to the main water purifier unit and reducing the risk of malfunction and cleaning difficulty. The pre-filter pre-filters the water before it enters the main body of the water purifier, reducing the purifier's overall workload. The pre-filter uses a horizontal layout, which means that the water inlet of the pre-filter is not limited by the water level in the water tank. This allows for the drainage of as much water as possible from the external water tank above the water inlet of the pre-filter, improving the utilization rate of the water source in the external water tank and reducing the amount of residual water. At the same time, the concentrated water remaining in the external water tank will accumulate in the space below the water inlet of the pre-filter, which can be poured out directly later. This reduces the filtration burden on the main body of the water purifier, facilitates the cleaning and maintenance of the external water tank and the main body of the water purifier, and achieves the effect of separating concentrated water from water. Attached Figure Description

[0026] Figure 1 This is an overall structural diagram of a specific embodiment of the present utility model.

[0027] Figure 2 This is a longitudinal sectional view of the present invention.

[0028] Figure 3 This is a utility model Figure 2 A magnified view of a portion of region A in the middle.

[0029] Figure 4 This is an exploded view of a specific embodiment of the present invention; the top cover of the external water tank is not shown.

[0030] Figure 5 This is a longitudinal sectional view of a specific embodiment two of this utility model.

[0031] In the diagram: 1. Main body of the water purifier; 11. Concentrate return pipe; 111. Scale inhibitor; 12. Positioning part; 13. Damping anti-slip ring; 2. External water tank; 21. Water supply pipe; 22. Concentrate collection space; 23. Positioning sleeve; 24. Top cover; 25. Handle; 3. Pre-filter; 31. Filter housing; 311. Water inlet; 32. Filter assembly; 320. Second sealing ring; 321. Central tube; 3210. Water passage hole; 3211. Closed end; 3212. Open end; 322. Filter element; 33. Water outlet cap; 331. Insertion part; 3311. First sealing ring; 332. Annular connection part; 333. Annular insertion part. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings. Specific Implementation Example 1

[0034] A water purifier with a horizontally placed pre-filter cartridge, such as Figures 1-4 As shown, the device includes a water purifier body 1 and an external water tank 2. The external water tank 2 has a removable top cover 24 and a handle 25. The external water tank 2 is equipped with a water supply pipe 21 connected to the water purifier body 1. The inlet of the water supply pipe 21 is connected to a pre-filter 3, which is horizontally placed at the bottom of the external water tank 2. The water purifier body 1 is equipped with a concentrated water return pipe 11. The water purifier body 1 contains a composite filter and a booster pump. The booster pump is used to return the water source in the water supply pipe 21 to the main body. The composite filter element, which has a reverse osmosis module, is drawn towards the external water tank 2. The concentrated water produced by the reverse osmosis module flows back to the external water tank 2 through the concentrated water return pipe 11, allowing the concentrated water produced by the main body of the water purifier 1 to flow back to the external water tank 2 for reuse, thus improving the high efficiency of water source utilization in this invention. A concentrated water collection space 22 is formed between the pre-filter element 3 and the bottom of the external water tank 2, occupying 1 / 4 to 1 / 3 of the overall volume of the external water tank. As the liquid level in the water tank 2 gradually decreases, the heavy component impurities in the external water tank 2 slowly settle in the concentrated water accumulation space 22 at the bottom. When the liquid level in the external water tank 2 is lower than that of the pre-filter 3, the high-concentration residual water in the concentrated water accumulation space 22 cannot be pumped into the main body 1 of the water purifier for use. At this time, the concentrated water in the concentrated water accumulation space 22 can be poured out directly, achieving the purpose of concentrated water separation. The bottom of the external water tank 2 is provided with several positioning sleeves 23. The water supply pipe 21 and the return pipe are provided with positioning parts 12 corresponding to the positioning sleeves 23. The positioning parts 12 are inserted and positioned corresponding to the positioning sleeves 23. A damping anti-slip ring 13 is provided between the positioning parts 12 and the positioning sleeves 23, so that the water supply pipe 21 and the return pipe are fixed in the positioning sleeves 23 at the bottom of the external water tank 2 by inserting the positioning parts 12 at the bottom. The frictional resistance of the corresponding damping anti-slip ring 13 is used to improve the positioning stability between the corresponding positioning parts 12 and the positioning sleeves 23.

[0035] like Figures 2-4As shown, the pre-filter 3 includes a filter housing 31, a filter assembly 32, and an outlet cap 33. The outlet cap 33 has a sleeve portion 331, which is inserted into the inlet of the water supply pipe 21 via the sleeve portion 331. This insert-fitting block design allows the pre-filter 3 to be detachably connected to the inlet of the water supply pipe 21, improving the ease of connection between the pre-filter 3 and the water supply pipe 21. A first sealing ring 3311 is provided between the sleeve portion 331 and the inlet of the water supply pipe 21. The first sealing ring 3311 can... To improve the water leakage prevention performance between the insert part 331 and the water inlet of the water supply pipe 21, and at the same time, the frictional resistance of the first sealing ring 3311 can effectively prevent the insert part 331 from axially separating from the water supply pipe 21; the end of the outlet end cap 33 away from the insert part 331 extends with an annular connecting part 332, and the filter shell 31 is threadedly connected to the annular connecting part 332. The threaded connection method is conducive to improving the ease of disassembly and assembly between the filter shell 31 and the outlet end cap 33, and facilitates the maintenance or replacement of the filter element assembly 32.

[0036] like Figures 3-4 As shown, the filter element assembly 32 includes a central tube 321 and a filter element 322 wrapped around the central tube 321. The central tube 321 is axially disposed in the inner cavity of the filter housing 31. The central tube 321 has a closed end 3211 and an open end 3212. The open end 3212 communicates with the insert part 331. Several water passage holes 3210 are opened on the side wall of the central tube 321. Several water inlet holes 311 are opened through the filter housing 31. Water from the external water tank 2 flows into the inner cavity of the filter housing 31 through the water inlet holes 311, and then flows into the central tube 321 through the water passage holes 3210 after being filtered by the filter element 322. After that, it flows out from the open end 3212 of the central tube 321 through the insert part 331. The sleeve 331 enters the water supply pipe 21; the outlet end cap 33 is provided with an annular insertion part 333 corresponding to the central pipe 321. The central pipe 321 and the annular insertion part 333 are inserted and matched. The insertion installation method facilitates the quick connection between the central pipe 321 and the annular insertion part 333 of the outlet end cap 33; a number of second sealing rings 320 are provided between the central pipe 321 on one side of the open end 3212 and the annular insertion part 333. The second sealing rings 320 help to improve the water leakage prevention of the pre-filter element 3 itself. At the same time, the damping force of the second sealing rings 320 can also effectively prevent the central pipe 321 and the annular insertion part 333 from axially separating.

[0037] The basic working principle of this utility model is as follows: A pre-filter element 3 is horizontally placed at the bottom of the external water tank 2 of the water purifier body 1. The water outlet of the pre-filter element 3 is connected to the water in the external water tank 2 through the water supply pipe 21 into the water purifier body 1. The external water tank can expand the water tank capacity to meet greater water demand and reduce the trouble of frequent water replenishment. At the same time, the external water tank design allows the external water tank to be completely disassembled for cleaning or maintenance, avoiding damage to the water purifier body 1 and reducing the risk of failure and cleaning difficulty. The pre-filter element 3 can pre-filter the water source before it enters the water purifier body 1, reducing the amount of purified water entering the water purifier body 1. In addition, the pre-filter 3 adopts a horizontal layout, which means that the water inlet of the pre-filter 3 is not limited by the liquid level in the water tank. It can drain as much water as possible from the external water tank 2 above the water inlet hole 311 of the pre-filter 3, which helps to improve the utilization rate of the water source in the external water tank 2 and reduce the amount of residual water in the external water tank 2. At the same time, the concentrated water remaining in the external water tank 2 will accumulate in the space below the water inlet hole 311 of the pre-filter 3. This part of the concentrated water can be poured out directly later. This has the effects of reducing the filtration burden on the main body of the water purifier, facilitating the cleaning and maintenance of the external water tank and the main body of the water purifier, and achieving the effect of concentrated water separation. Specific Implementation Example 2

[0039] A water purifier with a horizontally placed pre-filter cartridge, such as Figure 5 As shown, the difference between this embodiment and specific embodiment one is that: the outlet end of the concentrated water return pipe 11 is connected to a scale inhibitor 111, the scale inhibitor 111 is filled with scale inhibitor, and the surface of the scale inhibitor 111 has several through holes that connect the concentrated water return pipe 11 and the external water tank 2. The scale inhibitor 111 can prevent scale from forming inside the external water tank 2 and the main body 1 of the water purifier, which is beneficial to the water circulation of this utility model.

[0040] The other structures in this embodiment are the same as those in Specific Embodiment 1, and will not be described again here.

[0041] 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 a horizontally placed pre-filter cartridge, comprising a main body (1) and an external water tank (2), characterized in that: The external water tank (2) is provided with a water supply pipe (21) connected to the main body (1) of the water purifier. The inlet of the water supply pipe (21) extends to the bottom of the water tank (2). The inlet of the water supply pipe (21) is connected to a pre-filter (3). The pre-filter (3) is placed horizontally at the bottom of the external water tank (2), and the outer wall of the pre-filter (3) is provided with several water inlet holes (311).

2. A water purifier with a horizontally placed pre-filter cartridge according to claim 1, characterized in that: The pre-filter (3) includes a filter housing (31), a filter assembly (32), and a water outlet cap (33). The water outlet cap (33) is provided with a sleeve (331), and the water outlet cap (33) is inserted into the water inlet of the water supply pipeline (21) through the sleeve (331).

3. A water purifier with a horizontally placed pre-filter cartridge according to claim 2, characterized in that: The end of the water outlet cap (33) away from the insert (331) extends an annular connecting part (332), and the filter shell (31) is threadedly connected to the annular connecting part (332).

4. A water purifier with a horizontally placed pre-filter cartridge according to claim 2, characterized in that: The filter element assembly (32) includes a central tube (321) and a filter element (322) wrapped around the central tube (321). The central tube (321) is axially disposed in the inner cavity of the filter shell (31). The central tube (321) has a closed end (3211) and an open end (3212). The open end (3212) communicates with the insert part (331). The side wall of the central tube (321) is provided with a plurality of water passage holes (3210).

5. A water purifier with a horizontally placed pre-filter cartridge according to claim 4, characterized in that: The water outlet cap (33) is provided with an annular insertion part (333) corresponding to the central tube (321), and the central tube (321) is inserted into the annular insertion part (333).

6. A water purifier with a horizontally placed pre-filter cartridge according to claim 1, characterized in that: The main body (1) of the water purifier is provided with a concentrated water return pipe (11), and the outlet end of the concentrated water return pipe (11) is connected to the external water tank (2).

7. A water purifier with a horizontally placed pre-filter cartridge according to claim 6, characterized in that: The outlet end of the concentrated water return pipeline (11) is connected to a scale inhibitor (111), which is filled with scale inhibitor.

8. A water purifier with a horizontally placed pre-filter cartridge according to claim 6, characterized in that: The bottom of the external water tank (2) is provided with several positioning sleeves (23). The water supply pipe (21) and the return pipe are provided with positioning parts (12) corresponding to the positioning sleeves (23). The positioning parts (12) are inserted and positioned corresponding to the positioning sleeves (23), and a damping anti-slip ring (13) is provided between the positioning parts (12) and the positioning sleeves (23).

9. A water purifier with a horizontally placed pre-filter cartridge according to claim 1, characterized in that: A concentrated water accumulation space (22) is formed between the pre-filter (3) and the bottom of the external water tank (2).

10. A water purifier with a horizontally placed pre-filter cartridge according to claim 9, characterized in that: The concentrated water collection space (22) occupies 1 / 4 to 1 / 3 of the total volume of the external water tank (2).

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