Water tank assembly for water purifier and water purifier

Abstract

The utility model discloses a water tank assembly for a water purifier, which comprises a water tank (1) provided with a first air vent (13); and a filter (2); the air purifier is characterized in that the filter (2) comprises a filter shell (21), a second air vent (211) and a third air vent (212), wherein the second air vent (211) is in fluid communication with the first air vent (13), and the third air vent (212) is connected with an air cylinder (2121); the filter screen (22) is mounted at the second air vent (211); the dust collection box (24) is installed at the bottom of the filter shell (21), an annular interlayer (240) is formed between the dust collection box (24) and the ventilation cylinder (2121), and a tangential opening (241) communicated with the annular interlayer (240) is formed in the circumferential wall of the dust collection box (24) in the tangential direction. The utility model further discloses a water purifier with the water tank assembly. Compared with the prior art, the filter screen replacement frequency can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification equipment technical field, specifically point to a water tank subassembly for water purifier and water purifier. BACKGROUND

[0002] The water purifier generally only has the function of purifying water quality, and the water purifying speed of the water purifier is also slow, so a water storage tank needs to be equipped to store the purified pure water, so that the water demand can be quickly met when using.

[0003] The existing water storage tank comprises a tank body, a water purification inlet and a water purification outlet arranged on the tank body, and an air vent arranged on the top surface of the tank body, the air vent is connected with an air pipe, and a filter screen is arranged on the air pipe. In this way, when the purified water is stored in the water tank, the water purification outlet is closed, so that the volume of air in the upper part of the water tank cavity is continuously reduced, and the air in the water tank is discharged to the outside atmosphere through the filter screen; when the purified water is discharged, the water purification outlet is opened, and since the flow rate of the purified water discharged is greater than the flow rate of the purified water generated and entering the water tank, the volume of air in the upper part of the water tank cavity is continuously increased, and the outside atmosphere enters the water tank through the filter screen. For details, please refer to the Chinese patent "Water Purifier Water Storage Tank" with the patent application number CN201520028924.2.

[0004] The filter screen has the effect of intercepting small-particle dust in the air, but when the filter screen is completely blocked by dust, the air pressure balance in the water tank may be affected, so the filter screen needs to be replaced, which affects the user experience. INVENTION CONTENTS

[0005] The first technical problem to be solved by the utility model is to provide a water tank subassembly for a water purifier which can reduce the replacement frequency of the filter screen in view of the current status of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a water purifier applied with the above water tank subassembly.

[0007] The technical scheme adopted by the utility model to solve the above first technical problem is as follows: a water tank subassembly for a water purifier, comprising

[0008] a water tank having a water purification inlet, a water purification outlet and a first air vent; and

[0009] a filter connected at the first air vent;

[0010] characterized in that the filter comprises

[0011] a filter shell having a second air vent and a third air vent, the second air vent is in fluid communication with the first air vent, and the third air vent is connected with a downwardly extending air cylinder;

[0012] A filter screen is installed at the second air vent.

[0013] A dust collecting box is installed at the bottom of the filter shell and surrounds the outer periphery of the air cylinder, and an annular interlayer is formed between the inner peripheral wall of the dust collecting box and the outer peripheral wall of the air cylinder, and a tangential port is formed in the peripheral wall of the dust collecting box and communicates with the annular interlayer.

[0014] In order to facilitate the replacement of the filter screen, the filter screen is located on the outside of the filter shell and covers the second air vent.

[0015] In order to cooperate with the filter screen to achieve the filtering function, the number of the second air vents is multiple and arranged in a matrix.

[0016] In order to facilitate the mounting and dismounting of the filter screen, the filter further comprises a filter screen cover which is detachably connected to the outside of the filter shell and surrounded by the outer wall of the filter shell to form a filter cavity for accommodating the filter screen, the surface of the filter screen cover has a communication hole communicating with the filter cavity, and the first air vent communicates with the communication hole through an air pipe.

[0017] In order to realize the detachable connection between the filter shell and the shell, the filter screen cover is buckled to the filter shell.

[0018] In order to facilitate the removal of the dust collecting box for cleaning the dust collected in the dust collecting box, the bottom wall of the filter shell has a connecting cylinder extending downward at the position of the outer periphery of the air cylinder, and the edge of the top of the dust collecting box is threadedly connected to the outer periphery of the connecting cylinder.

[0019] In order to ensure that the gas-solid mixture performs stable rotational centrifugal motion during flowing through the annular interlayer, the dust collecting box is coaxially arranged with the air cylinder.

[0020] In order to facilitate the user to observe the amount of dust collected in the dust collecting box, the dust collecting box is a transparent piece.

[0021] In order to ensure that the gas-solid mixture has a long enough travel distance in the annular interlayer for gas-solid separation, the tangential port is located at the upper part of the dust collecting box.

[0022] The technical scheme adopted by the utility model to solve the second technical problem is: a water purifier, characterized in that: the water tank assembly is applied.

[0023] Compared with the prior art, the filter is installed at the first air vent of the water tank and is composed of the filter shell, the filter screen and the dust collecting box, when the clean water in the water tank is discharged, the atmosphere outside enters the annular interlayer in the dust collecting box through the tangential port by the cyclone separation principle, the gas-solid mixture performs the rotational centrifugal motion to separate the gas and the solid in the process of flowing through the annular interlayer, the solid is deposited to the bottom of the inner cavity of the dust collecting box, the gas enters the filter shell through the air cylinder and then enters the water tank through the filter screen, which is equivalent to adding a preposed gas-solid separation device in front of the filter screen, so that the pressure of intercepting the dust solid by the filter screen is shared, the service life of the filter screen is greatly prolonged, and the replacement frequency of the filter screen of the user is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective structural schematic view of the water tank assembly in the embodiment of the water purifier of the utility model;

[0025] Figure 2 It is a perspective structural schematic view of the filter in the embodiment of the water purifier of the utility model; Figure 1

[0026] Figure 3 It is a perspective exploded schematic view of the embodiment of the water purifier of the utility model; Figure 2

[0027] Figure 4 It is a longitudinal sectional view of the embodiment of the water purifier of the utility model. Figure 2 DETAILED DESCRIPTION The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0028] In the specification and claims of the utility model, the terms expressing direction, such as “front”, “back”, “up”, “down”, “left”, “right”, “side”, “top”, “bottom” and the like, are used to describe various example structural parts and elements of the utility model, but these terms are only used for the purpose of convenient description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiment of the utility model can be arranged in different directions, these terms expressing direction are only as description and should not be regarded as limitation, for example, “up” and “down” are not necessarily limited as the direction opposite or consistent with the direction of gravity.

[0029] In the specification and claims of the utility model, the terms expressing direction, such as “front”, “back”, “up”, “down”, “left”, “right”, “side”, “top”, “bottom” and the like, are used to describe various example structural parts and elements of the utility model, but these terms are only used for the purpose of convenient description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiment of the utility model can be arranged in different directions, these terms expressing direction are only as description and should not be regarded as limitation, for example, “up” and “down” are not necessarily limited as the direction opposite or consistent with the direction of gravity.

[0030] ​​The "fluid communication" referred in the utility model refers to the spatial position relation between two components or parts (hereinafter referred to as the first part and the second part respectively), i.e. the fluid (gas, liquid or mixture of both) can flow or / and be transported from the first part to the second part along the flow path, which can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipeline, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow or a combination thereof.

[0031] As shown in Figures 1 to 4 , it is a preferred embodiment of the water purifier with the water tank assembly. The water tank assembly comprises a water tank 1 and a filter 2.

[0032] As shown in Figure 1 , the top of the water tank 1 has a purified water inlet 11 and a first air vent 13, and the bottom of the water tank 1 has a purified water outlet 12. This is the conventional structure of the water tank of the water purifier, which will not be described here.

[0033] As shown in Figures 2 to 4 , the filter 2 comprises a filter shell 21, a filter screen 22, a filter screen cover 23 and a dust collection box 24.

[0034] Specifically, a plurality of second air vents 211 are arranged in a matrix on the front side wall of the filter shell 21; a third air vent 212 is arranged at the middle position of the bottom wall of the filter shell 21, and a downwardly extending air cylinder 2121 is connected to the third air vent 212; a connecting cylinder 213 extending downwardly is arranged at the position of the outer periphery of the air cylinder 2121 on the bottom wall of the filter shell 21.

[0035] The filter screen 22 is located outside the filter shell 21 and covers all the second air vents 211;

[0036] The filter screen cover 23 is snap-connected outside the filter shell 21, and a filter cavity 231 for accommodating the filter screen 22 is formed between the outer side wall of the filter shell 21 and the filter screen cover 23, a communication hole 232 penetrating through the filter cavity 231 is arranged on the front side of the filter screen cover 23, and the first air vent 13 is connected to the communication hole 232 through an air pipe 131;

[0037] The dust collecting box 24 is cylindrical and has an open top, is mounted at the bottom of the filter shell 21, and coaxially surrounds the outer periphery of the air cylinder 2121. Specifically, an annular interlayer 240 is formed between the inner peripheral wall of the dust collecting box 24 and the outer peripheral wall of the air cylinder 2121, and a tangential port 241 that communicates with the annular interlayer 240 is tangentially formed in the peripheral wall of the upper portion of the dust collecting box 24. In this embodiment, the dust collecting box 24 is transparent, so that the user can easily observe the amount of dust collected in the dust collecting box 24; the rim of the top of the dust collecting box 24 is threadedly connected to the outer periphery of the connecting cylinder 213, so that when it is necessary to clean the dust collected in the dust collecting box 24, the dust collecting box 24 can be simply rotated off.

[0038] The working principle of this embodiment is as follows:

[0039] (1) When the clean water is stored in the water tank 1: the clean water outlet 12 is closed, so the volume of the air in the upper portion of the inner cavity of the water tank 1 continuously decreases, the air in the water tank 1 enters the filter cavity 231 through the air pipe 131, is filtered by the filter screen 22, enters the filter shell 21 through the second air port 211, then enters the dust collecting box 24 through the air cylinder 2121, and is finally discharged outward through the tangential port 241;

[0040] (2) When the clean water in the water tank 1 is discharged: the clean water outlet 12 is opened, and since the flow rate of the clean water discharged is greater than the flow rate of the clean water generated and enters the water tank 1, the volume of the air in the upper portion of the inner cavity of the water tank 1 continuously increases, and the atmosphere outside enters the annular interlayer 240 in the dust collecting box 24 through the tangential port 241 by the cyclone separation principle, and the gas-solid mixture performs rotational centrifugal motion to separate the gas and the solid during the flow through the annular interlayer 240, wherein the solid settles at the bottom of the inner cavity of the dust collecting box 24, and the gas enters the filter shell 21 through the air cylinder 2121, then enters the filter cavity 231 through the second air port 211, and finally is filtered by the filter screen 22 and then enters the water tank 1 through the air pipe 131, which is equivalent to adding a pre-located gas-solid separation device before the filter screen 22, thereby sharing a part of the pressure of the filter screen 22 to intercept dust-like solids, so that the service life of the filter screen 22 can be greatly prolonged, and the frequency of replacement of the filter screen by the user can be reduced.

Claims

1. A water tank assembly for a water purifier, comprising a water tank (1) having a purified water inlet (11), a purified water outlet (12) and a first air vent (13); and a filter (2) connected at the first air vent (13); the filter (2) comprising a filter housing (21) having a second air vent (211) in fluid communication with the first air vent (13) and a third air vent (212) at which a downwardly extending air cylinder (2121) is connected; a filter screen (22) mounted at the second air vent (211); and a dust collecting box (24) in the form of a cylinder with an open top mounted at the bottom of the filter housing (21) and surrounding the outer periphery of the air cylinder (2121), an annular gap (240) being formed between the inner peripheral wall of the dust collecting box (24) and the outer peripheral wall of the air cylinder (2121), and tangential openings (241) being formed in the peripheral wall of the dust collecting box (24) in tangential directions and in communication with the annular gap (240). The filter screen (22) is located outside the filter housing (21) and covers the second air vent (211). The second air vent (211) is in the form of a plurality of air vents arranged in a matrix. characterized in that The filter (2) further comprises a filter screen cover (23) detachably connected to the outside of the filter housing (21) and surrounding the filter housing (21) to form a filter cavity (231) for accommodating the filter screen (22), the surface of the filter screen cover (23) having a communication hole (232) in communication with the filter cavity (231), and the first air vent (13) being in communication with the communication hole (232) through an air pipe (131). The filter screen cover (23) is snap-connected to the filter housing (21). The bottom wall of the filter housing (21) has a downwardly extending connecting cylinder (213) at a position corresponding to the outer periphery of the air cylinder (2121), and the rim of the top of the dust collecting box (24) is screw-connected to the outer periphery of the connecting cylinder (213). The dust collecting box (24) is coaxially arranged with the air cylinder (2121).

2. The water tank assembly of claim 1, wherein: The dust collecting box (24) is transparent.

3. The water tank assembly of claim 2, wherein: The tangential openings (241) are located at the upper portion of the dust collecting box (24).

4. The water tank assembly of claim 2, wherein: The water tank assembly is used in the water purifier.

5. The water tank assembly of claim 4, wherein: ​ 6. The water tank assembly of claim 1, wherein: ​ 7. The water tank assembly of claim 1, wherein: ​ 8. The water tank assembly of claim 1, wherein: ​ 9. The water tank assembly of any one of claims 1-8, wherein: ​ 10. A water purifier characterized by comprising: ​

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