A self-cleaning water purifier

Abstract

This utility model belongs to the field of water purifier technology, specifically relating to a self-cleaning water purifier. It includes a cylindrical outer shell with an opening at one end, an end cap at the opening end of the cylindrical outer shell, a water inlet and a drain outlet communicating with the interior of the cylindrical outer shell, a filter element assembly disposed within the cylindrical outer shell, a receiving cavity at one end of the filter element assembly for receiving purified water, an impeller assembly driven by tap water connected to the filter element assembly and entering through the water inlet, and a rotating shaft assembly connected to the end cap and the receiving cavity respectively. The rotating shaft assembly includes an axially hollow rotating shaft with one end extending into the receiving cavity and the other end extending out of the end cap for outputting purified water. With this structure, the water purifier can drive the filter element to rotate using the pressure of tap water during use, preventing impurities in the tap water from adsorbing onto the filter element surface and affecting the water purification effect. Simultaneously, the upper bearing is isolated from the tap water, preventing bearing damage and improving the service life of the water purifier.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, specifically to a self-cleaning water purifier that facilitates automatic cleaning of the filter element. Background Technology

[0002] Currently, to improve quality of life, tap water is no longer used directly for cooking or drinking; instead, it is purified. For water purifiers, the filter cartridge is crucial because it is directly immersed in tap water, which is purified through osmosis. Therefore, over time, the filter cartridge surface easily becomes covered with dirt, causing it to lose or weaken its purification function. To solve this problem, a rotating structure connected to the filter cartridge is installed inside the water purifier's casing. The force of the tap water causes this rotating structure to continuously rotate the filter cartridge, preventing impurities and dirt from adhering to its surface. When it's time to drain or clean the inside of the casing, the purified water outlet is closed, and the drain port is opened to expel the wastewater. Therefore, the bearing in this rotating structure is critical. If the bearing is in direct contact with tap water, impurities from the tap water can enter and cause the rotating structure to jam. Thus, to prevent damage to the bearing from impurities, direct contact between the bearing and tap water must be avoided. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a self-cleaning water purifier.

[0004] The technical solution is as follows: A self-cleaning water purifier includes a cylindrical outer shell with an opening at one end, an end cap at the opening end of the cylindrical outer shell, a water inlet and a drain outlet communicating with the interior of the cylindrical outer shell, a filter element assembly disposed inside the cylindrical outer shell, a receiving cavity disposed at one end of the filter element assembly for receiving purified water, an impeller assembly driven by tap water connected to the filter element assembly and entering through the water inlet, and a rotating shaft assembly connected to the end cap and the receiving cavity respectively; the rotating shaft assembly includes an axially hollow rotating shaft with one end extending into the receiving cavity and the other end extending out of the end cap for outputting purified water.

[0005] Preferably, the other end of the cylindrical shell is closed; the water inlet and the sewage outlet are located on the side wall of the closed end of the cylindrical shell; it also includes a bottom rotating shaft located at the bottom of the closed end of the cylindrical shell along the axial direction of the cylindrical shell, a columnar connecting block, a bottom bearing sleeved on the bottom rotating shaft and located inside the columnar connecting block, and a rotating rod with one end fixedly connected to the columnar connecting block and the other end connected to the filter element assembly; the rotating rod is arranged along the axial direction of the cylindrical shell.

[0006] Preferably, the impeller assembly includes an impeller plate sleeved outside the columnar connecting block and perpendicular to the axial direction of the cylindrical outer shell, and a plurality of blades disposed on one surface of the impeller plate; the blades are driven by tap water entering through the water inlet; the impeller plate is circular and its edge is in contact with the inner wall of the cylindrical outer shell, and the bottom bearing is located behind the impeller plate.

[0007] Preferably, the receiving cavity is provided with a columnar connecting part along the axial direction of the cylindrical outer shell, and the columnar connecting part is provided with a rotating shaft hole and a bearing hole that communicate with each other; the bearing hole communicates with the inside of the receiving cavity.

[0008] Preferably, the rotating shaft assembly further includes an upper bearing sleeved on the rotating shaft and located in the bearing hole, and a waterproof ring embedded in the inner wall of the rotating shaft hole and sleeved on the rotating shaft.

[0009] Preferably, one end of the rotating shaft passes through the rotating shaft hole and the upper bearing in sequence and then extends into the receiving cavity; the purified water in the receiving cavity is output outward through the rotating shaft.

[0010] Preferably, one end of the rotating shaft that extends into the receiving cavity is provided with a threaded section, and a nut is fitted over the threaded section.

[0011] Preferably, the water inlet is located on the side wall of the end cap and communicates with the inside of the end cap, and the drain outlet is located on the side wall of the closed end of the cylindrical shell.

[0012] Preferably, the impeller assembly includes an impeller plate sleeved outside the columnar connecting portion, and a plurality of blades disposed on one surface of the impeller plate; the blades are driven by tap water entering through the water inlet.

[0013] Preferably, the filter element assembly includes several permeation tubes and a water purification shell that is sealed to the receiving cavity; one end of each permeation tube is closed and its closed end is located inside the cylindrical shell, and the other end is open and its open end extends into the water purification shell.

[0014] Technical Effects: In this water purifier, tap water enters through the inlet and impacts the impeller blades, causing the columnar connecting block, rotating rod, and filter element assembly to rotate. Simultaneously, the receiving cavity rotates relative to the rotating shaft, preventing impurities and dirt from the tap water from adhering to the filter element surface. Because the upper bearing is located within the bearing hole and is not in contact with the tap water, and a waterproof ring is fitted on the rotating shaft, sealing the gap between the shaft and the shaft hole, this prevents tap water from entering the receiving cavity and contaminating the purified water, and also prevents impurities in the tap water from damaging the upper bearing and causing it to seize. Furthermore, when the impeller assembly is located on the receiving cavity, and the inlet is located on the end cap, tap water entering and impacting the impeller blades causes the receiving cavity and the connected filter element assembly to rotate. Therefore, during use, the water purifier can drive the filter element to rotate using the pressure of the tap water, preventing impurities from adhering to the filter element surface and affecting the purification effect. At the same time, the upper bearing is isolated from the tap water, preventing bearing damage and extending the service life of the water purifier. Attached Figure Description

[0015] Figure 1 This is a perspective view of a water purifier according to an embodiment of the present utility model;

[0016] Figure 2 This is a perspective view of the water purifier according to an embodiment of the present utility model after the end caps have been removed.

[0017] Figure 3 This is a perspective view of the water purifier according to an embodiment of the present utility model after removing the end cap and the receiving cavity;

[0018] Figure 4 This is a perspective view of the filter element assembly of the water purifier according to an embodiment of the present utility model;

[0019] Figure 5 This is a perspective view of the cylindrical outer shell of the water purifier according to an embodiment of the present utility model;

[0020] Figure 6 This is a perspective view of the internal structure of the cylindrical outer shell of the water purifier according to an embodiment of the present utility model;

[0021] Figure 7 This is a perspective view of the impeller assembly and rotating rod of a water purifier according to an embodiment of the present utility model.

[0022] Figure 8 This is a cross-sectional view of the water purifier after the rotating shaft and the receiving cavity are combined according to an embodiment of the present utility model;

[0023] Figure 9 This is a perspective view of the impeller assembly and the receiving cavity after being combined according to another embodiment of the present invention;

[0024] Figure 10 This is a perspective view of the impeller assembly and filter element assembly combined according to another embodiment of the present invention.

[0025] Reference numerals: Cylindrical outer shell -1, End cap -2, Inlet -3, Drain -4, Filter element assembly -5, Infiltration tube -501, Purified water shell -502, Receiving cavity -6, Columnar connecting part -601, Shaft hole -602, Bearing hole -603, Impeller assembly -7, Impeller plate -701, Blade -702, Shaft assembly -8, Shaft -801, Upper bearing -802, Waterproof ring -803, Bottom shaft -9, Columnar connecting block -10, Rotating rod -11, Nut -12. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1-8 As shown, this utility model provides a self-cleaning water purifier, including a cylindrical outer shell 1 with an opening at one end, an end cap 2 at the opening end of the cylindrical outer shell, a water inlet 3 and a drain outlet 4 communicating with the interior of the cylindrical outer shell, a filter element assembly 5 disposed inside the cylindrical outer shell, a receiving cavity 6 disposed at one end of the filter element assembly for receiving purified water, an impeller assembly 7 connected to the filter element assembly and driven by tap water entering through the water inlet, and a rotating shaft assembly 8 connected to the end cap 2 and the receiving cavity respectively; the rotating shaft assembly includes an axially hollow rotating shaft 801 with one end extending into the receiving cavity and the other end extending out of the end cap for outputting purified water. That is, the rotating shaft 801 here is not only the rotation axis, but also the channel for outputting purified water.

[0028] In this embodiment, specifically, the other end of the cylindrical outer shell 1 is closed; the water inlet 3 and the sewage outlet 4 are located on the side wall of the closed end of the cylindrical outer shell; it also includes a bottom rotating shaft 9 located at the bottom of the closed end of the cylindrical outer shell along the axial direction of the cylindrical outer shell, a columnar connecting block 10, a bottom bearing (not shown) sleeved on the bottom rotating shaft and located in the columnar connecting block, and a rotating rod 11 with one end fixedly connected to the columnar connecting block and the other end connected to the filter element assembly 5; the rotating rod is arranged along the axial direction of the cylindrical outer shell.

[0029] The filter element assembly 5 includes several permeation capillaries 501 and a purified water housing 502 that is sealed to the receiving cavity 6. One end of each permeation capillary is closed and its closed end is located inside the cylindrical housing 1, while the other end is open and extends into the purified water housing 502. The filter element assembly 5 is a commercially available standard part. Tap water seeps into each permeation capillary 501 from its side wall to form purified water, which is then collected in the receiving cavity 6 and output through the rotating shaft 801. The other end of the rotating rod 11 is fixedly connected to the purified water housing 502.

[0030] Specifically, the impeller assembly 7 includes an impeller plate 701 sleeved on the columnar connecting block 10, and a plurality of blades 702 disposed on one surface of the impeller plate; the blades are driven by tap water entering through the water inlet 3, the impeller plate is circular and its edge is in contact with the inner wall of the cylindrical outer shell, and the bottom bearing is located behind the impeller plate, which can also prevent tap water from directly contacting the bottom bearing.

[0031] To accommodate the rotating shaft 801 and the upper bearing, a columnar connecting part 601 is provided on the accommodating cavity 6 along the axial direction of the cylindrical outer shell 1. The columnar connecting part has a rotating shaft hole 602 and a bearing hole 603 that are interconnected; the bearing hole is connected to the interior of the accommodating cavity 6. The columnar connecting part 601 and the accommodating cavity 6 are fixedly connected by an integral molding method, such as the common injection molding process.

[0032] The rotating shaft assembly 8 also includes an upper bearing 802 sleeved on the rotating shaft 801 and located in the bearing hole, and a waterproof ring 803 embedded in the inner wall of the rotating shaft hole and sleeved on the rotating shaft.

[0033] One end of the rotating shaft 801 passes through the rotating shaft hole and the upper bearing 802 in sequence and then extends into the receiving cavity 6; the purified water in the receiving cavity is output to the outside through the rotating shaft 801.

[0034] The shaft 801 has a threaded section at one end that extends into the receiving cavity 6, and a nut 12 is fitted over the threaded section to effectively prevent the shaft 801 from detaching from the receiving cavity 6.

[0035] In addition to the above embodiments, such as Figures 9-10 As shown, this utility model also includes another embodiment, which differs from the above embodiment in that the water inlet 3 is located on the side wall of the end cap 2 and communicates with the inside of the end cap, while the drain outlet 4 is still located on the side wall of the closed end of the cylindrical shell 1.

[0036] Meanwhile, the impeller assembly 7 includes an impeller plate 701 sleeved on the columnar connecting part 601, and a plurality of blades 702 disposed on one surface of the impeller plate; the blades are driven by tap water entering through the water inlet 3. That is, in this embodiment, the impeller assembly is disposed on the receiving cavity 6, and under the impact of tap water, it can also drive the filter element to rotate, thereby realizing the self-cleaning of the filter element.

[0037] In the above description, it should be noted that the terms "installation", "connection", "connection" and other related terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; "set at" should be understood as "installed at" or "set at", including installation methods such as fixed installation and movable installation.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Any equivalent structures made based on the description and drawings of this utility model, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A self-cleaning water purifier, comprising a cylindrical outer shell (1) with an opening at one end, an end cap (2) disposed at the opening end of the cylindrical outer shell, a water inlet (3) and a drain outlet (4) communicating with the interior of the cylindrical outer shell, and a filter element assembly (5) disposed within the cylindrical outer shell, characterized in that, It also includes a receiving cavity (6) located at one end of the filter element assembly for receiving purified water, an impeller assembly (7) driven by tap water connected to the filter element assembly and entering through the water inlet, and a rotating shaft assembly (8) connected to the end cover (2) and the receiving cavity respectively; the rotating shaft assembly includes an axially hollow rotating shaft (801) with one end extending into the receiving cavity and the other end extending out of the end cover for outputting purified water.

2. The self-cleaning water purifier as described in claim 1, characterized in that, The other end of the cylindrical shell (1) is closed; the water inlet (3) and the sewage outlet (4) are located on the side wall of the closed end of the cylindrical shell; it also includes a bottom rotating shaft (9) located at the bottom of the closed end of the cylindrical shell along the axial direction of the cylindrical shell, a columnar connecting block (10), a bottom bearing sleeved on the bottom rotating shaft and located in the columnar connecting block, and a rotating rod (11) with one end fixedly connected to the columnar connecting block and the other end connected to the filter element assembly (5); the rotating rod is arranged along the axial direction of the cylindrical shell.

3. A self-cleaning water purifier as described in claim 2, characterized in that, The impeller assembly (7) includes an impeller plate (701) sleeved outside the columnar connecting block (10) and perpendicular to the axial direction of the cylindrical outer shell (1), and a plurality of blades (702) disposed on one surface of the impeller plate; the blades are driven by tap water entering through the water inlet (3); the impeller plate is circular and its edge is in contact with the inner wall of the cylindrical outer shell, and the bottom bearing is located behind the impeller plate.

4. A self-cleaning water purifier as described in claim 1, characterized in that, The cavity (6) is provided with a columnar connecting part (601) along the axial direction of the cylindrical outer shell (1). The columnar connecting part is provided with a rotating shaft hole and a bearing hole that are interconnected. The bearing hole is connected to the inside of the cavity (6).

5. A self-cleaning water purifier as described in claim 4, characterized in that, The rotating shaft assembly (8) also includes an upper bearing (802) sleeved on the rotating shaft (801) and located in the bearing hole, and a waterproof ring (803) embedded in the inner wall of the rotating shaft hole and sleeved on the rotating shaft.

6. A self-cleaning water purifier as described in claim 5, characterized in that, One end of the rotating shaft (801) passes through the rotating shaft hole and the upper bearing (802) in sequence and then extends into the receiving cavity (6); the purified water in the receiving cavity is output outward through the rotating shaft (801).

7. A self-cleaning water purifier as described in claim 6, characterized in that, The shaft (801) has a threaded section at one end that extends into the receiving cavity (6), and a nut is fitted over the threaded section.

8. A self-cleaning water purifier as described in claim 4, characterized in that, The water inlet (3) is located on the side wall of the end cap (2) and communicates with the inside of the end cap, while the drain outlet (4) is located on the side wall of the closed end of the cylindrical shell (1).

9. A self-cleaning water purifier as described in claim 8, characterized in that, The impeller assembly (7) includes an impeller plate (701) sleeved outside the columnar connecting part (601) and a plurality of blades (702) disposed on one surface of the impeller plate; the blades are driven by tap water entering through the water inlet (3).

10. A self-cleaning water purifier as described in claim 1, characterized in that, The filter assembly (5) includes several permeation tubes (501) and a water purification shell (502) that is sealed to the receiving cavity (6); one end of each permeation tube is closed and its closed end is located inside the cylindrical shell (1), and the other end is open and its open end extends into the water purification shell (502).

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