Water purifier

Abstract

The utility model discloses a water purifier and relates to the technical field of water treatment. The water purifier comprises a shell, a separation structure and a power assembly. The shell is provided with a containing cavity, a liquid inlet, a liquid outlet and an air leakage opening. The containing cavity is divided into a first cavity and a second cavity by the partition structure, the first cavity is communicated with the liquid inlet, the second cavity is communicated with the liquid outlet, and the partition structure comprises a filter part; the power assembly can drive external liquid to enter the first cavity through the liquid inlet, drive the liquid to enter the second cavity from the first cavity through the filtering piece and discharge the liquid to the outside through the liquid outlet. The gas release port is communicated with the first cavity, the gas release port can be opened or closed, and the gas release port is used for discharging gas in the first cavity in the opened state. The water purifier provided by the utility model can efficiently purify pollutants and impurities in water, and is simple in structure.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a water purifier. Background Technology

[0002] Portable outdoor water purifiers are portable water purification products that can directly filter freshwater containing harmful bacteria and odors, such as river water, stream water, and spring water, into drinking water. They are already widely used in many outdoor applications. However, existing outdoor water purifiers have low purification efficiency and complex structures. Utility Model Content

[0003] This utility model provides a water purifier with high water purification efficiency and simple structure.

[0004] This utility model provides a water purifier, which includes a shell, a partition structure, and a power component. The shell has a receiving cavity, a liquid inlet, and a liquid outlet; the partition structure is disposed in the receiving cavity, dividing the receiving cavity into a first cavity and a second cavity, the first cavity being connected to the liquid inlet and the second cavity being connected to the liquid outlet, and the partition structure includes a filter element; the power component is disposed in the shell, and the power component is capable of driving external liquid into the first cavity through the liquid inlet, driving the liquid from the first cavity through the filter element into the second cavity, and then discharging it to the outside through the liquid outlet; the shell has a vent connecting the first cavity to the outside, and the vent is configured to be openable or closed, and the vent is used to discharge gas in the first cavity when open.

[0005] Furthermore, the partition structure also includes a first cylinder, a filter element sleeved on the outside of the first cylinder, and a second cavity formed between the two. The first cavity is formed between the side of the first cylinder and the filter element away from the second cavity and the outer shell.

[0006] Furthermore, the outer shell has a first end and a second end at its two ends along the first direction. The shell wall at the first end is connected to the first cylinder and the filter element. The first cavity includes a first region, a second region, and a third region connected in sequence. The inner cavity of the first cylinder forms the first region. The first cylinder, the filter element, and the inner end face of the second end form the second region. The outer peripheral surface of the filter element and the inner peripheral surface of the outer shell form the third region. The power assembly can drive the liquid in the first region to pass through the second region, the third region, and the filter element in sequence into the second cavity.

[0007] Furthermore, the vent is connected to the third region, and the vent is formed on the sidewall of the first end.

[0008] Furthermore, the liquid inlet is formed at the second end of the outer casing, and the liquid outlet is formed at the first end of the outer casing.

[0009] Furthermore, the power assembly includes a piston cylinder and a piston. The piston cylinder serves as the first cylinder body, and one end of the piston extends into the first cylinder body through the first end and is reciprocally slidably inserted into the first cylinder body, and is sealed to the inner wall of the first cylinder body.

[0010] Furthermore, the outer end face of the second end is provided with an anti-slip pad.

[0011] Furthermore, the outer end face of the second end has a mounting groove, with part of the anti-slip pad embedded in the mounting groove and the other part extending out of the groove opening.

[0012] Furthermore, the vent is equipped with a first valve, which allows the vent to switch between open and closed states.

[0013] Furthermore, at least a portion of the outer peripheral surface of the casing is provided with an anti-slip layer.

[0014] This invention provides a water purifier, comprising a shell, a partition structure, and a power assembly. The partition structure divides the receiving chamber into a first chamber and a second chamber. A filter element, as part of the partition structure, allows liquid to pass through the filter element as it flows from the first chamber to the second chamber, thereby purifying the liquid. The power assembly drives the liquid to flow sequentially through the first chamber, the filter element, and the second chamber before discharging. The water purifier achieves purification through the cooperation of the power assembly and the partition structure, simplifying its structure. A vent is provided on the shell to connect the first chamber to the outside, allowing gas to escape from the pre-filtration chamber, reducing air resistance, improving water flow stability, and thus increasing purification efficiency. Attached Figure Description

[0015] Figure 1 A cross-sectional structural schematic diagram of a water purifier in one state provided in some embodiments of this application;

[0016] Figure 2 A cross-sectional structural schematic diagram of another state of the water purifier provided in some embodiments of this application;

[0017] Figure 3 This is a schematic diagram of the structure of a water purifier provided in some embodiments of this application.

[0018] Explanation of reference numerals in the attached figures

[0019] 10. Outer shell; 11. Receiving cavity; 12. Liquid inlet; 13. Liquid outlet; 14. First end; 15. Second end; 16. Steel ball; 17. Limiting post; 18. Liquid inlet valve; 20. Separation structure; 21. First chamber; 22. Second chamber; 23. Filter element; 24. First cylinder; 30. Power assembly; 32. Piston cylinder; 31. Piston; 40. Vent; 41. First valve; 50. Anti-slip pad; 51. Mounting groove; 60. Anti-slip layer; 101. First end cap; 102. Second end cap; 110. Main body; 121. Liquid inlet nozzle; 131. Liquid outlet nozzle; 211. First area; 212. Second area; 213. Third area; 310. Piston rod; 311. Handle. Detailed Implementation

[0020] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] In the description of the embodiments of this application, the technical terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated, or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0024] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0025] Portable outdoor water purifiers have been widely used in many outdoor applications. However, existing portable outdoor water purifiers still need further improvement in terms of purification efficiency, ease of use, and simplified structure.

[0026] Therefore, this application provides a water purifier comprising a shell, a partition structure, and a power component. The shell has a receiving cavity, an inlet, and an outlet. The partition structure is disposed within the receiving cavity, dividing it into a first cavity and a second cavity. The first cavity is connected to the inlet, and the second cavity is connected to the outlet. The partition structure includes a filter element. The power component is disposed within the shell and drives external liquid through the inlet into the first cavity, then through the filter element into the second cavity, and finally out through the outlet. The shell has a vent connecting the first cavity to the outside, which is openable or closable. When open, the vent is used to discharge gas from the first cavity. The partition structure divides the receiving cavity into a first cavity and a second cavity. The filter element, as part of the partition structure, allows liquid to pass through the filter element as it flows from the first cavity to the second cavity, thereby purifying the liquid. The power component drives the liquid to flow sequentially through the first cavity, the filter element, and the second cavity before discharge. The water purifier achieves purification through the cooperation of the power component and the partition structure, simplifying its structure. An air vent is provided on the outer shell to connect the first chamber to the outside, which is used to discharge the gas in the pre-filtration chamber, reduce air resistance, improve the stability of water flow, and thus improve water purification efficiency.

[0027] Below, refer to Figures 1 to 3 Some embodiments of this application will be described in detail.

[0028] Figure 1 A cross-sectional structural schematic diagram of a water purifier in one state provided in some embodiments of this application; Figure 2 A cross-sectional structural schematic diagram of another state of the water purifier provided in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of a water purifier provided in some embodiments of this application.

[0029] like Figures 1 to 3As shown, this application provides a water purifier, including a housing 10, a partition structure 20, and a power assembly 30. The housing 10 has a receiving cavity 11, a liquid inlet 12, and a liquid outlet 13; the partition structure 20 is disposed in the receiving cavity 11, dividing the receiving cavity 11 into a first cavity 21 and a second cavity 22. The first cavity 21 is connected to the liquid inlet 12, and the second cavity 22 is connected to the liquid outlet 13. The partition structure 20 includes a filter element 23; the power assembly 30 is disposed in the housing 10. The power assembly 30 can drive external liquid into the first cavity 21 through the liquid inlet 12, and drive the liquid from the first cavity 21 through the filter element 23 into the second cavity 22, and then discharge it to the outside through the liquid outlet 13; the housing 10 has a vent 40 connecting the first cavity 21 to the outside. The vent 40 is configured to be openable or closed. When open, the vent 40 is used to discharge gas from the first cavity 21.

[0030] The power assembly 30 is a component used to provide power for the flow of liquid. The power assembly 30 can be, but is not limited to, a piston assembly, a pump, etc. The pump can be, but is not limited to, a booster pump, a diaphragm pump, a centrifugal pump, a gear pump, etc.

[0031] It is understandable that water purifiers can filter tap water, removing residual chlorine, rust, particulate matter, and some bacteria. Alternatively, they can filter purified water, using reverse osmosis technology to remove almost all impurities, including bacteria, viruses, and heavy metals.

[0032] The partition structure 20 divides the receiving cavity 11 into a first cavity 21 and a second cavity 22. The filter element 23, as part of the partition structure 20, allows the liquid to pass through the filter element 23 as it flows from the first cavity 21 to the second cavity 22, thus purifying the liquid. The power assembly 30 drives the liquid to flow sequentially through the first cavity 21, the filter element 23, and the second cavity 22 before discharge. The water purifier achieves its purification through the cooperation of the power assembly 30 and the partition structure 20, simplifying its structure. A vent 40 is provided on the outer casing 10 to connect the first cavity 21 to the outside, allowing gas to escape from the pre-filtration cavity, reducing air resistance, improving water flow stability, and thus increasing purification efficiency.

[0033] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the partition structure 20 also includes a first cylinder 24, a filter element 23 is sleeved on the outside of the first cylinder 24, and a second cavity 22 is formed between the two. The first cavity 21 is formed between the side of the first cylinder 24 and the filter element 23 away from the second cavity 22 and the outer shell 10.

[0034] The filter element 23 is annularly positioned around the first cylinder 24, making full use of the radial space. Compared to a flat plate filter structure, the annular filter area is significantly increased. The liquid flows axially in the first chamber 21 while simultaneously penetrating the filter element 23 radially. The filter element 23 is fitted onto the first cylinder 24, allowing the liquid to penetrate the filter element 23 uniformly and reducing contamination of the filter element 23 caused by excessively high local flow velocities.

[0035] For example, filter element 23 is a ceramic filter cartridge with an average pore size of 0.01 μm. Of course, filter element 23 can also be an activated carbon filter cartridge, a fiber filter cartridge, or a nanoscale ultrafiltration membrane filter cartridge; the specific type is not specifically limited here.

[0036] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the outer shell 10 has a first end 14 and a second end 15 at its two ends along the first direction. The end wall of the first end 14 is connected to the first cylinder 24 and the filter element 23. The first cavity 21 includes a first region 211, a second region 212 and a third region 213 connected in sequence. The inner cavity of the first cylinder 24 forms the first region 211.

[0037] A second region 212 is formed between the first cylinder 24, the filter element 23, and the inner end face of the second end 15. A third region 213 is formed between the outer peripheral surface of the filter element 23 and the inner peripheral surface of the outer shell 10. The power assembly 30 can drive the liquid in the first region 211 to flow sequentially through the second region 212 and the third region 213, and then drive the liquid to penetrate the filter element 23 and enter the second cavity 22.

[0038] The shell walls located at both ends of the outer shell 10 along the first direction X and intersecting the first direction X are the end walls of the outer shell 10. The surface of the end wall facing the receiving cavity 11 is the inner end face, and the surface of the end wall facing away from the receiving cavity 11 is the outer end face.

[0039] like Figure 1 As shown, the first direction X is the direction indicated by the arrow. Driven by the power component 30, the liquid enters from the first region 211, flows sequentially through the second region 212 and the third region 213, and then drives the liquid to penetrate the filter element 23. The filtered water enters the second chamber 22 and is finally discharged to the outside from the outlet 13. By setting the first region 211, the second region 212 and the third region 213, the direct impact on the filter element 23 can be reduced, and the clogging of the filter element 23 caused by excessive local flow velocity can be reduced. In addition, the space occupied is reduced, which is conducive to the miniaturization of the water purifier.

[0040] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the vent 40 is connected to the third region 213, and the vent 40 is formed on the side wall of the first end 14.

[0041] The annular shell wall surrounding the central axis of the outer shell 10, which extends along the first direction X, is the sidewall of the outer shell 10.

[0042] A vent 40 is located on the side wall of the first end 14 of the outer casing 10, communicating with the third region 213. When the liquid is under pressure, it flows into the third region 213, and the gas moves along with it, thus the gas tends to accumulate at the corner of the third region 213 near the first end 14. Placing the vent 40 here allows for rapid air discharge, preventing gas from entering the filter element 23 along with the liquid, reducing the possibility of an air barrier layer forming on the surface, and increasing water purification efficiency.

[0043] In some embodiments of this application, such as Figure 3 As shown, the liquid inlet 12 is formed at the second end 15 of the outer casing 10, and the liquid outlet 13 is formed at the first end 14 of the outer casing 10.

[0044] For example, the inlet 12 is formed on the sidewall or endwall of the second end 15, and the outlet 13 is formed on the sidewall or endwall of the first end 14.

[0045] Liquid enters through the inlet 12 at the second end 15, flows sequentially through the first region 211, the second region 212, and the third region 213, passes through the filter element 23, enters the second chamber 22, and finally exits to the outside through the outlet 13 at the first end 14. The structure is simple and compact. By placing the inlet 12 at the second end 15 and the outlet 13 at the first end 14, the liquid flow path is extended, increasing the contact time between the liquid and the filter element 23 and improving filtration accuracy. Furthermore, the openings at both ends promote unidirectional water flow, reducing dead zones caused by short paths or backflows, minimizing impurities remaining in the housing, and reducing the risk of secondary contamination.

[0046] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the vent 40 is connected to the third region 213, the vent 40 is formed on the side wall of the first end 14, the liquid inlet 12 is formed on the second end 15 of the outer shell 10, and the liquid outlet 13 is formed on the first end 14 of the outer shell 10.

[0047] like Figure 1 As shown, during the liquid flow, the gas in the first chamber 21 will gradually flow towards the third region 213 with the direction of liquid flow and gather at the corner of the third region 213 near the first end 14. The vent 40 is connected to the third region 213 and is located on the side wall of the first end 14, so that the vent 40 is located at the corner of the third region 213 near the first end 14, which can efficiently discharge the gathered gas and improve the water purification efficiency.

[0048] In some embodiments of this application, such as Figure 1 and Figure 2As shown, the power assembly 30 includes a piston cylinder 32 and a piston 31. The piston cylinder 32 serves as the first cylinder 24. One end of the piston 31 extends into the first cylinder 24 through the first end 14 and is reciprocally slidably inserted into the first cylinder 24, and is sealed to the inner wall of the first cylinder 24.

[0049] The piston cylinder 32 serves as both the first cylinder 24 and the second chamber 22 within the receiving cavity 11, and as the power component 30, cooperating with the piston 31. This design saves on parts, reducing space requirements and facilitating the miniaturization of the water purifier, while also saving on material costs. Figure 2 As shown, piston 31 slides towards the first end 14, and external liquid enters the first chamber 21 through the inlet 12. Figure 1 As shown, piston 31 slides towards the second end 15, compressing the volume of the inner cavity of the first cylinder 24, and pushing the liquid from the first region 211 to the second region 212 and then to the third region 213. At the same time, the liquid passes through the filter element 23 to the second cavity 22, and is finally discharged from the outlet 13. The outer circumferential surface of piston 31 is sealed with the inner wall of the first cylinder 24 to ensure no leakage of liquid under high pressure and to improve the power driving the liquid movement.

[0050] The piston 31 includes a piston rod 310 and a handle 311. Pulling the handle 311 causes the piston 31 to slide back and forth within the first cylinder 24.

[0051] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, the outer end face of the second end 15 is provided with an anti-slip pad 50.

[0052] The anti-slip pad 50 is attached to the outer end face of the second end 15 of the outer casing 10. The anti-slip pad 50 allows the water purifier to be placed with the outer end face of the second end 15 facing the placement surface. The anti-slip pad 50 contacts the placement surface, increasing the friction of the contact surface and making the water purifier securely placed.

[0053] For example, the anti-slip mat 50 may be a ring-shaped or dot-matrix anti-slip contact surface.

[0054] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, an installation groove 51 is formed on the outer end face of the second end 15. Part of the anti-slip pad 50 is embedded in the installation groove 51, and the other part extends out of the groove opening of the installation groove 51.

[0055] For example, the anti-slip mat 50 can be made of rubber and silicone, and the specific material is not specifically limited here.

[0056] The anti-slip pad 50 engages with the pre-reserved mounting groove 51 on the outer end face of the second end 15, enabling quick installation and easy replacement by hand. The anti-slip pad 50 extends out of the groove of the mounting groove 51 to protect the outer end face of the second end 15 from bumps and collisions, and increases the friction with the contact surface, so that the water purifier will not slide when placed and is placed securely.

[0057] In some embodiments of this application, such as Figure 2 As shown, the vent 40 is equipped with a first valve 41, which enables the vent 40 to switch between open and closed states.

[0058] The first valve 41 can open or close the vent 40. It can be opened and closed as needed during use, which can achieve precise venting, reduce gas retention and thus improve water purification efficiency.

[0059] For example, the first valve 41 can be a pressure relief ball valve, an automatic pressure relief valve, or a manual spring-loaded valve; the specific type is not specifically limited here.

[0060] In some embodiments of this application, such as Figure 3 As shown, at least a portion of the outer peripheral surface of the outer casing 10 is provided with an anti-slip layer 60.

[0061] The surface of the side wall of the outer casing 10 facing away from the receiving cavity 11 is the outer peripheral surface of the outer casing 10. The outer casing 10 is provided with an anti-slip layer 60 to increase the friction between the human hand and the outer casing 10 of the water purifier, making it more convenient to carry and reducing slippage and effort during use.

[0062] For example, an anti-slip layer may be provided in the hand grip area on the outer peripheral surface of the housing 10 to ensure a firm grip. The hand grip area may be, but is not limited to, the middle area of ​​the outer peripheral surface of the housing 10 along the first direction.

[0063] For example, an anti-slip layer 60 may be provided on the entire outer periphery of the housing 10, making it more convenient when the water purifier is frequently moved or tilted.

[0064] For example, the anti-slip layer 60 can be sandblasted. Specifically, the outer shell 10 is first anodized and then sandblasted.

[0065] The water purifier also includes an inlet valve 18, which is located at the inlet port 12. When the piston 31 slides towards the first end 14, the inlet valve 18 opens, allowing the first chamber 21 to communicate with the outside through the inlet port 12, and liquid enters the first chamber 21 through the inlet port 12. When the piston 31 slides towards the second end 15, the inlet valve 18 closes. Liquid passes through the filter element 23 from the first chamber 21 into the second chamber 22, and is then discharged to the outside through the outlet port 13.

[0066] For example, the inlet valve 18 can be a manual control valve, a ball valve, or a plug valve.

[0067] For example, such as Figure 1 As shown, the liquid inlet valve 18 of this application includes a steel ball 16 and a limiting post 17. The housing 10 has a liquid inlet channel formed at its second end 15. One end of the liquid inlet channel forms an inlet port 12 on the outer peripheral surface of the housing 10. The other end of the liquid inlet channel extends toward the central axis of the housing 10 and bends at the central axis, extending along the first direction X toward the receiving cavity 11, and forms an inlet on the inner end face of the housing 10. The steel ball 16 of the liquid inlet valve 18 is located at the inlet, and the limiting post 17 is located on the side of the steel ball 16 facing away from the inlet. When the piston 31 slides along the direction from the second end 15 toward the first end 14, it drives... The steel ball 16 is disengaged from the inlet, connecting the first chamber 21 to the outside. Liquid enters the first chamber 21 through the inlet valve 18. After the steel ball 16 disengages, the limiting post 17 abuts against it, restricting its range of motion. As the piston slides along the direction from the first end 14 to the second end 15, the steel ball 16 returns to its original position, blocking the inlet. At this point, the inlet valve 18 closes, and the first chamber 21 is no longer connected to the outside. During this process, the liquid entering the first chamber 21 passes through the filter element 23 under the action of the piston 31, enters the second chamber 22, and is discharged, thus purifying the liquid. When the water purifier is not in use, the steel ball 16 is positioned at the inlet and remains stationary. That is, when the water purifier is not in use, the inlet valve 18 is closed, and the first chamber 21 is not connected to the outside.

[0068] For example, the liquid inlet 12 is connected to a liquid inlet nozzle 121, which protrudes from the outer shell 10. That is, the liquid inlet nozzle 121 is exposed and protrudes from the surface of the outer shell 10, and extends a certain length in the direction intersecting with the first direction X, so as to facilitate liquid inlet, reduce air entry, and facilitate connection of pipelines.

[0069] For example, such as Figure 1 As shown, the liquid outlet 13 is connected to a liquid outlet nozzle 131, which protrudes from the outer shell 10. That is, the liquid outlet nozzle 131 is exposed and protrudes from the surface of the outer shell 10, and extends a certain length in the direction intersecting with the first direction X, so as to facilitate liquid discharge, reduce liquid spillage, and facilitate connection to pipelines.

[0070] For example, such as Figure 2 As shown, the outer casing 10 includes a first end cap 101, a second end cap 102, and a main body 110. The main body 110 has an inner cavity with openings at both ends along a first direction X. The first end cap 101 and the second end cap 102 respectively seal the two openings. The main body 110 connects the first end cap 101 and the second end cap 102. A liquid inlet 12 is located on the second end cap 102, a liquid outlet 13 is located on the first end cap 101, and a vent 40 is located on the main body 110 near the first end cap 101.

[0071] For example, the main body 110 of the housing 10 can be, but is not limited to, a cylinder, a square tube, or a conical tube.

[0072] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A water purifier characterized by comprising: The utility model relates to a liquid filter, comprising: a housing having a receiving cavity, a liquid inlet and a liquid outlet; a partition structure arranged in the receiving cavity and separating the receiving cavity into a first cavity and a second cavity, the first cavity being in communication with the liquid inlet, the second cavity being in communication with the liquid outlet, and the partition structure comprising a filter element; a power assembly arranged in the housing, the power assembly being capable of driving liquid from outside to enter the first cavity through the liquid inlet, and driving liquid to pass through the filter element from the first cavity into the second cavity and then to be discharged outside through the liquid outlet; wherein the housing is formed with a gas vent in communication with the first cavity and outside, the gas vent being configured to be openable or closable, and the gas vent being used to discharge gas in the first cavity when open.

2. The water purifier according to claim 1, wherein The partition structure further comprises a first cylinder, the filter element being sleeved outside the first cylinder and forming the second cavity therebetween, and the first cylinder and the side of the filter element away from the second cavity forming the first cavity with the housing.

3. The water purifier according to claim 2, wherein The housing has a first end and a second end at two ends along a first direction, the shell wall of the first end being connected with the first cylinder and the filter element, the first cavity comprising a first region, a second region and a third region in sequence, the inner cavity of the first cylinder forming the first region, the first cylinder, the filter element and the inner end face of the second end forming the second region, and the outer peripheral surface of the filter element and the inner peripheral surface of the housing forming the third region, the power assembly being capable of driving liquid in the first region to pass through the second region, the third region and the filter element in sequence and then enter the second cavity.

4. The water purifier according to claim 3, wherein The gas vent is in communication with the third region, and the gas vent is formed in the side wall of the first end.

5. The water purifier according to claim 3, wherein The liquid inlet is formed in the second end of the housing; The liquid outlet is formed in the first end of the housing.

6. The water purifier according to claim 3, wherein The power assembly comprises a piston cylinder and a piston, the piston cylinder serving as the first cylinder, one end of the piston being slidably inserted into the first cylinder through the first end and being in sealing engagement with the inner wall of the first cylinder.

7. The water purifier according to claim 6, wherein The outer end face of the second end is provided with an anti-skid pad.

8. The water purifier according to claim 7, wherein The outer end face of the first end is formed with a mounting groove, part of the anti-skid pad being embedded in the mounting groove and the other part extending out of the groove opening of the mounting groove.

9. The water purifier according to any one of claims 1 to 8, characterized in that, The gas vent is provided with a first valve, the first valve being capable of switching the gas vent between open and closed states.

10. The water purifier according to any one of claims 1 to 8, characterized in that, At least part of the outer peripheral surface of the housing is provided with an anti-skid layer.

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