Portable water purifier

Abstract

The utility model discloses a portable water purifier which comprises a shell and a filter element arranged in the shell, the shell is provided with a wastewater outlet and a wastewater discharge outlet, and the portable water purifier further comprises a water passing channel, the waste water outlet is used for guiding waste water filtered by the filter element to the waste water discharge port through the water passing channel so as to discharge the waste water out of the water purifier, the shell is provided with a waste water flow regulating valve, and the waste water flow regulating valve can move relative to the shell so as to regulate the flow of the waste water in the water passing channel. In the portable water purifier provided by the invention, the wastewater flow regulating valve can move relative to the shell to regulate the wastewater flow in the water passing channel, so that the flow of wastewater produced in the filtering process of the filter element, which is discharged towards the outside of the whole machine, is adjustable, and the functions of the portable water purifier are enriched.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, specifically to a portable water purifier. Background Technology

[0002] There are various types of water purifiers on the market, but they are mainly divided into electric water purifiers and non-electric water purifiers. Electric water purifiers require a power source to operate, while non-electric water purifiers can be used without a power source. Among non-electric water purifiers, portable water purifiers are the most common. Portable water purifiers are typically used in field or outdoor operations to filter and sterilize water sources in the wild or outdoors, and are often used by the military, rescue operations, and outdoor workers. Electric water purifiers can regulate the wastewater discharge flow through structures such as solenoid valves. However, for non-electric portable water purifiers, the solenoid valves that require electricity are no longer applicable. Therefore, most portable water purifiers on the market do not have adjustable wastewater discharge flow, which limits their functionality. Utility Model Content

[0003] This application provides a portable water purifier that improves or solves, to some extent, the technical problem of the non-adjustable wastewater discharge flow rate of existing portable water purifiers.

[0004] The technical solution adopted in this application is as follows:

[0005] A portable water purifier includes a housing and a filter element disposed within the housing. The housing has a wastewater outlet and a wastewater discharge port. The portable water purifier also includes a water passage. The wastewater outlet is used to guide the wastewater produced by the filter element through the water passage to the wastewater discharge port and discharge it outside the water purifier. The housing is equipped with a wastewater flow regulating valve, which can move relative to the housing to regulate the wastewater flow rate in the water passage.

[0006] The portable water purifier in this application also has the following additional technical features:

[0007] The water passage is formed in the wastewater flow regulating valve; when the wastewater flow regulating valve moves relative to the housing, it can change the size of the area connecting the water passage and the wastewater outlet; and / or, when the wastewater flow regulating valve moves relative to the housing, it can change the size of the area connecting the water passage and the wastewater discharge outlet.

[0008] The wastewater flow regulating valve includes a rotating shaft, the water passage is formed in the rotating shaft, the outer shell is provided with a rotating hole adapted to the rotating shaft, the wastewater outlet and the wastewater discharge port respectively pass through the rotating hole, and the rotating shaft is rotatably installed in the rotating hole.

[0009] The rotating shaft is provided with a stop boss, and the inner wall of the rotating hole is arranged with multiple stop grooves along the circumference. When the rotating shaft rotates in the rotating hole, the engagement between the stop boss and any one of the multiple stop grooves is changed to engagement with any other one.

[0010] The inner wall of the rotating hole is provided with a water-stopping and limiting boss, and the rotating shaft is provided with a stop boss. The first end of the water-stopping and limiting boss can abut against the stop boss when the rotating shaft rotates in one direction, and the second end of the water-stopping and limiting boss can abut against the stop boss when the rotating shaft rotates in another direction, so as to limit the rotation angle range of the rotating shaft. When the stop boss rotates from the position abutting against the first end to the position abutting against the second end, the wastewater flow rate in the water passage gradually increases.

[0011] The water passage has an inlet for connecting to the wastewater outlet and an outlet for connecting to the wastewater discharge outlet. The inlet and the outlet are arranged axially spaced along the rotating shaft. The rotating shaft is fitted with a first sealing body, a second sealing body, and a third sealing body that form a seal between the rotating shaft and the inner wall of the rotating hole. The first sealing body and the second sealing body are located on both sides of the inlet, and the second sealing body and the third sealing body are located on both sides of the outlet.

[0012] The water passage is formed in the housing. When the wastewater flow regulating valve moves relative to the housing, it adjusts the wastewater flow rate in the water passage by changing the size of the connecting area of ​​the water passage that connects the wastewater outlet and the wastewater discharge outlet.

[0013] The water passage is provided with a stop surface located between the wastewater outlet and the wastewater discharge port. The wastewater flow regulating valve has a water-stopping surface adapted to the stop surface. The wastewater flow regulating valve can move back and forth along the water passage to make the water-stopping surface abut or separate from the stop surface, thereby regulating the wastewater flow in the water passage.

[0014] The water passage is provided with an internal thread, and the wastewater flow regulating valve is provided with an external thread. The wastewater flow regulating valve moves back and forth along the water passage by engaging the external thread with the internal thread.

[0015] The outer casing includes a cylindrical body and a base body that are detachably connected together. The cylindrical body and the base body cooperate to form an installation cavity for installing the filter element. The wastewater outlet and the wastewater discharge port are located on the base body. The wastewater flow regulating valve is installed on the base body. One end of the wastewater flow regulating valve is exposed on the outside of the base body and is equipped with an operating element.

[0016] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows:

[0017] 1. The portable water purifier provided in this application has a wastewater outlet for discharging wastewater generated during the filter cartridge filtration process into a water passage. The water passage guides the wastewater to a wastewater discharge outlet for discharge outside the unit. A wastewater flow regulating valve is installed on the outer casing. This valve can move relative to the outer casing to adjust the wastewater flow rate within the water passage, making the wastewater discharge flow rate adjustable. This helps enrich the functionality of the portable water purifier. For example, when the wastewater flow rate in the water passage is adjusted to its maximum using the wastewater flow regulating valve... The filter cartridge can be flushed, especially when it is a reverse osmosis filter cartridge. The wastewater flow rate can be adjusted to the maximum to facilitate flushing of the concentrated solution accumulated on the reverse osmosis filter cartridge. Alternatively, by adjusting the wastewater flow rate in the water passage through the wastewater flow regulating valve or even closing the water passage directly, it helps to improve the water production rate of the filter cartridge. In addition, for non-reverse osmosis filter cartridges that do not produce wastewater during filtration, the water passage can be closed by adjusting the wastewater flow rate. Therefore, the water purifier of this solution has good universal compatibility with different filter cartridges.

[0018] 2. As a preferred embodiment of this application, the water passage is formed in the wastewater flow regulating valve. When the wastewater flow regulating valve moves relative to the outer casing, it changes the position of the water passage relative to the wastewater outlet and also changes the position of the water passage relative to the wastewater discharge outlet. Thus, by changing the size of the connection area between the water passage and the wastewater outlet and / or the size of the connection area between the water passage and the wastewater discharge outlet, the openness of the water passage relative to the wastewater outlet and / or the openness relative to the wastewater discharge outlet is changed, thereby changing the wastewater flow rate entering the water passage and achieving wastewater discharge flow rate regulation.

[0019] 3. As a preferred embodiment of this application, the wastewater flow regulating valve is rotatably installed in the rotating hole of the housing via a rotating shaft, so that the wastewater flow in the water passage can be adjusted simply by controlling the rotation of the wastewater flow regulating valve, making the operation convenient and quick.

[0020] 4. As a preferred embodiment of this application, when the rotating shaft rotates within the rotating hole, the engagement between the shift boss and any one of the multiple shift grooves changes to engagement with any other. This allows the wastewater flow regulating valve to correspond to different regulating positions when the shift boss engages with different shift grooves, resulting in different wastewater flow rates within the water passage. Furthermore, when the wastewater flow regulating valve is rotated, the shift boss will emit a sound similar to a "click" as it switches positions within different shift grooves, enhancing the rotation feel and user experience.

[0021] 5. As a preferred embodiment of this application, the water passage is formed in the housing. When the wastewater flow regulating valve moves relative to the housing, the wastewater flow rate in the water passage is adjusted by changing the size of the connecting area of ​​the water passage used to connect the wastewater outlet and the wastewater discharge port. This helps to simplify the structure of the wastewater flow regulating valve and reduce the processing difficulty. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is an exploded view of the portable water purifier provided in the first embodiment of this application;

[0024] Figure 2 This is a cross-sectional view of the portable water purifier provided in the first embodiment of this application;

[0025] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;

[0026] Figure 4 This is a cross-sectional view of the wastewater flow regulating valve provided in the first embodiment of this application;

[0027] Figure 5 A cross-sectional view of the housing base provided in the first embodiment of this application;

[0028] Figure 6 A cross-sectional view of a partial structure of the portable water purifier provided in the second embodiment of this application. Figure 1 ;

[0029] Figure 7 A cross-sectional view of a partial structure of the portable water purifier provided in the second embodiment of this application. Figure 2 .

[0030] List of components and reference numerals:

[0031] 1 Outer shell, 11 Cylinder, 12 Base, 121 Wastewater outlet, 122 Wastewater discharge port, 123 Rotary hole, 124 Stop groove, 125 Water-stop limiting boss, 126 Stop surface, 127 Internal thread;

[0032] 2 filter elements;

[0033] 3 water passages, 31 inlet, 32 outlet;

[0034] 4 Wastewater flow regulating valve, 41 Rotating shaft, 42 Stop boss, 43 Stop boss, 44 First sealing body, 45 Second sealing body, 46 Third sealing body, 47 Water-stopping surface, 48 External thread.

[0035] 5. Operating components. Detailed Implementation

[0036] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0038] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," 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 this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a communication 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 this application according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0041] In the embodiments of this application, a portable water purifier is provided. For ease of explanation and understanding, the following content provided in this application is based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is only a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0042] Reference Figures 1 to 7 As shown, the portable water purifier provided in this application includes a housing 1 and a filter element 2 disposed within the housing 1. The housing 1 is provided with a wastewater outlet 121 and a wastewater discharge port 122. The portable water purifier also includes a water passage 3. The wastewater outlet 121 is used to guide the wastewater produced by the filter element 2 through the water passage 3 to the wastewater discharge port 122 and discharge it outside the water purifier. The housing 1 is equipped with a wastewater flow regulating valve 4, which can move relative to the housing 1 to regulate the wastewater flow rate in the water passage 3.

[0043] Specifically, this application does not limit the structural form of the filter element 2. Since the outer shell 1 is provided with a wastewater outlet 121 and a wastewater discharge port 122, the portable water purifier of this application has good adaptability to reverse osmosis filter elements that produce a large amount of wastewater during the filtration process. Therefore, the portable water purifier of this application preferably uses a reverse osmosis filter element. The wastewater outlet 121 is used to guide the wastewater generated during the filtration process of the filter element 2 to the water passage 3. The water passage 3 guides the wastewater to the wastewater discharge port 122 and discharges it to the outside of the machine. The outer shell 1 is equipped with a wastewater flow regulating valve 4. The wastewater flow regulating valve 4 can move relative to the outer shell 1 to regulate the wastewater flow rate in the water passage 3, so that the wastewater discharge flow rate generated during the filtration process of the filter element 2 is adjustable. This helps to enrich the functions of the portable water purifier. For example, when the wastewater flow rate in the water passage 3 is adjusted to the maximum by the wastewater flow regulating valve 4, the filter element 2 can be rinsed, especially when the filter element 2 is a reverse osmosis filter element. The wastewater flow rate can be adjusted to the maximum to facilitate the rinsing of concentrated solution accumulated on the reverse osmosis filter element. For example, by reducing the wastewater flow rate in the water passage 3 through the wastewater flow regulating valve 4 or even directly closing the water passage 3, it helps to improve the water production rate of filter element 2. In addition, if filter element 2 is a non-reverse osmosis filter element and does not produce wastewater during filtration, the water passage 3 can be closed by the wastewater flow regulating valve 4 so that the water purifier no longer discharges wastewater during the filtration process. Therefore, by adjusting the wastewater flow rate in the water passage 3 through the wastewater flow regulating valve 4, the water purifier has good universal adaptability to different filter elements.

[0044] It should be noted that this application does not specifically limit the location of the water passage 3 or the method by which the wastewater flow regulating valve 4 regulates the wastewater flow in the water passage 3, and any one of the following embodiments can be adopted:

[0045] Example 1: As Figures 1 to 5 As shown, the water passage 3 is formed within the wastewater flow regulating valve 4. Based on this, in a preferred embodiment, when the wastewater flow regulating valve 4 moves relative to the housing 1, it can change the size of the area connecting the water passage 3 and the wastewater outlet 121. In another preferred embodiment, when the wastewater flow regulating valve 4 moves relative to the housing 1, it can change the size of the area connecting the water passage 3 and the wastewater discharge port 122. With this arrangement, when the wastewater flow regulating valve 4 moves relative to the housing 1, it changes the position of the water passage 3 relative to the wastewater outlet 121, and simultaneously changes the position of the water passage 3 relative to the wastewater discharge port 122. Therefore, by changing the size of the area connecting the water passage 3 and the wastewater outlet 121 and / or the area connecting the water passage 3 and the wastewater discharge port 122, the opening degree of the water passage 3 relative to the wastewater outlet 121 and / or relative to the wastewater discharge port 122 is changed, causing a change in the wastewater flow rate entering the water passage 3, thus achieving wastewater discharge flow rate regulation. Taking the example of the wastewater flow regulating valve 4 changing the size of the connection area between the water passage 3 and the wastewater outlet 121, when the wastewater flow regulating valve 4 rotates, the water passage 3 and the wastewater outlet 121 gradually shift from a fully connected state to a misaligned state, causing the connection area between the water passage 3 and the wastewater outlet 121 to gradually decrease until the water passage 3 and the wastewater outlet 121 are completely misaligned, making the area of ​​the connection area between the water passage 3 and the wastewater outlet 121 zero. At this point, wastewater can no longer enter the water passage 3 through the wastewater outlet 121. Taking the example of the wastewater flow regulating valve 4 changing the size of the connection area between the water passage 3 and the wastewater discharge port 122, when the wastewater flow regulating valve 4 rotates, the water passage 3 and the wastewater discharge port 122 gradually shift from a fully connected state to a misaligned state. The misalignment causes the connecting area between the water passage 3 and the wastewater discharge outlet 122 to gradually decrease until the water passage 3 and the wastewater discharge outlet 122 are completely misaligned, making the area of ​​the connecting area between the water passage 3 and the wastewater discharge outlet 122 zero. At this time, the wastewater in the water passage 3 cannot enter the wastewater discharge outlet 122 for discharge. Of course, when the wastewater flow regulating valve 4 is active, the misalignment between the water passage 3 and the wastewater outlet 121 and the wastewater discharge outlet 122 can be carried out simultaneously, so that the complete misalignment between the water passage 3 and the wastewater outlet 121 and the wastewater discharge outlet 122 can be achieved simultaneously. At this time, the wastewater cannot enter the water passage 3 from the wastewater outlet 121, and at the same time, the original wastewater in the water passage 3 can no longer enter the wastewater discharge outlet 122.

[0046] Furthermore, such as Figures 1 to 5As shown, the wastewater flow regulating valve 4 includes a rotating shaft 41, with a water passage 3 formed in the rotating shaft 41. The outer casing 1 has a rotating hole 123 adapted to the rotating shaft 41. The wastewater outlet 121 and the wastewater discharge outlet 122 respectively pass through the rotating hole 123. The rotating shaft 41 is rotatably installed within the rotating hole 123, so that the wastewater flow rate in the water passage 3 can be adjusted simply by controlling the rotation of the wastewater flow regulating valve 4, making operation convenient and quick. Specifically, Figure 3 The diagram shows the state in which the water passage 3 connects the wastewater outlet 121 and the wastewater discharge port 122, with the arrows indicating the wastewater flow path. Therefore, in this scheme, when the wastewater flow regulating valve 4 rotates, it can cause the water passage 3 and the wastewater outlet 121 to rotate and shift, thereby changing the size of the connected area. It can also cause the water passage 3 and the wastewater discharge port 122 to rotate and shift, thereby changing the size of the connected area.

[0047] Preferably, such as Figure 4 and Figure 5 As shown, the rotating shaft 41 is provided with a stop boss 42, and the inner wall of the rotating hole 123 is arranged with multiple stop grooves 124 circumferentially. When the rotating shaft 41 rotates within the rotating hole 123, the engagement of the stop boss 42 with any one of the multiple stop grooves 124 changes to engagement with any other. Those skilled in the art will understand that when the rotating shaft 41 rotates within the rotating hole 123, the engagement of the stop boss 42 with any one of the multiple stop grooves 124 changes to engagement with any other. This allows the wastewater flow regulating valve 4 to correspond to different regulating positions when the stop boss 42 engages with different stop grooves 124, resulting in different wastewater flow rates in the water passage 3. Furthermore, when the wastewater flow regulating valve 4 is rotated, the stop boss 42 makes a clicking sound when switching positions within different stop grooves 124, improving the rotation feel and user experience. In addition, when the gear shift boss 42 engages with a gear shift groove 124, the gear shift groove 124 can also limit the gear shift boss 42, restricting the rotating shaft part 41 from rotating on its own, and limiting the rotating shaft part 41 to its position, ensuring that the wastewater flow regulating valve 4 maintains its current gear position.

[0048] Preferably, such as Figure 4 and Figure 5As shown, the inner wall of the rotating hole 123 is provided with a water-stopping and limiting boss 125, and the rotating shaft part 41 is provided with a stop boss 43. The first end of the water-stopping and limiting boss 125 can abut against the stop boss 43 when the rotating shaft part 41 rotates in one direction, and the second end of the water-stopping and limiting boss 125 can abut against the stop boss 43 when the rotating shaft part 41 rotates in another direction, so as to limit the rotation angle range of the rotating shaft part 41. When the stop boss 43 rotates from the position abutting against the first end to the position abutting against the second end, the wastewater flow rate in the water passage 3 gradually increases. Those skilled in the art will understand that the first and second ends of the water-stop limiting boss 125 are used to limit the rotation angle of the rotating shaft 41, so that the rotating shaft 41 can only rotate back and forth between two extreme positions. When the rotating shaft 41 is in one extreme position, the stop boss 43 abuts against the first end of the water-stop limiting boss 125. At this time, the wastewater flow rate in the water passage 3 is minimal and can be zero, so that the whole machine no longer discharges wastewater. When the rotating shaft 41 is in the other extreme position, the stop boss 43 abuts against the second end of the water-stop limiting boss 125. At this time, the wastewater flow rate in the water passage 3 reaches its maximum. Therefore, when the user operates the wastewater flow regulating valve 4, they can judge whether the wastewater flow rate has been adjusted to the maximum or minimum based on the feel given by the stop boss 43 abutting against the first and second ends of the water-stop limiting boss 125, respectively, thus improving the user experience.

[0049] Preferably, such as Figure 3 and Figure 4 As shown, the water passage 3 has an inlet 31 for connecting to the wastewater outlet 121 and an outlet 32 ​​for connecting to the wastewater discharge outlet 122. The inlet 31 and the outlet 32 ​​are arranged axially at intervals along the rotating shaft portion 41. The rotating shaft portion 41 is fitted with a first sealing body 44, a second sealing body 45 and a third sealing body 46 respectively forming a seal between the rotating shaft portion 41 and the inner wall of the rotating hole 123. The first sealing body 44 and the second sealing body 45 are located on both sides of the inlet 31, and the second sealing body 45 and the third sealing body 46 are located on both sides of the outlet 32. By setting the first sealing body 44, the second sealing body 45 and the third sealing body 46, multiple seals are formed between the rotating shaft 41 and the rotating hole 123. The setting of the first sealing body 44 and the third sealing body 46 ensures that the wastewater discharged from the wastewater outlet 121 can only flow to the wastewater discharge port 122 through the water passage 3, preventing wastewater leakage. The setting of the second sealing body 45 helps to cut off the fluid path between the wastewater outlet 121 and the wastewater discharge port 122 except for the water passage 3, so that the wastewater flow regulating valve 4 can stably and reliably regulate the wastewater flow when rotating.

[0050] Example 2: Figure 6 and Figure 7As shown, the water passage 3 is formed in the outer casing 1. When the wastewater flow regulating valve 4 moves relative to the outer casing 1, it adjusts the wastewater flow rate within the water passage 3 by changing the size of the connecting area of ​​the water passage 3 that connects the wastewater outlet 121 and the wastewater discharge outlet 122. Those skilled in the art will understand that this embodiment differs from the previous embodiment where the water passage 3 was located within the wastewater flow regulating valve 4. Instead, the water passage 3 is directly formed in the outer casing 1. When the wastewater flow regulating valve 4 moves relative to the outer casing 1, it changes the orientation of the water passage 3, altering the size of the connecting area that connects the wastewater outlet 121 and the wastewater discharge outlet 122, thereby changing the wastewater flow rate. When the wastewater flow regulating valve 4 fully opens the water passage 3, the wastewater flow rate reaches its maximum. When the wastewater flow regulating valve 4 completely cuts off the water passage 3, the wastewater flow rate reaches its minimum and is zero; wastewater no longer flows from the wastewater outlet 121 through the water passage 3 into the wastewater discharge outlet 122.

[0051] Furthermore, such as Figure 6 and Figure 7 As shown, the water passage 3 is provided with a stop surface 126 located between the wastewater outlet 121 and the wastewater discharge outlet 122. The wastewater flow regulating valve 4 has a water-stopping surface 47 adapted to the stop surface 126. The wastewater flow regulating valve 4 can move back and forth along the water passage 3 to make the water-stopping surface 47 abut or separate from the stop surface 126, thereby regulating the wastewater flow rate in the water passage 3. Those skilled in the art will understand that when the water-stopping surface 47 abuts against the stop surface 126, Figure 7 The diagram shows the state where the stop surface 47 and the stop surface 126 are abutting. The surface seal formed by the stop surface 47 and the stop surface 126 causes the wastewater flow regulating valve 4 to cut off the water passage 3. At this time, wastewater no longer enters the wastewater discharge outlet 122 from the wastewater outlet 121. As the wastewater flow regulating valve 4 moves, the stop surface 47 and the stop surface 126 separate, and the distance between them gradually increases. Figure 6 The diagram shows the state when the stop surface 47 and the stop surface 126 are separated. The connecting area of ​​the water passage 3, which connects the wastewater outlet 121 to the wastewater outlet 121, gradually increases, causing the wastewater flow rate to gradually increase.

[0052] The wastewater flow regulating valve 4, within the water passage 3, can cause the stop surface 47 to abut or separate from the stop surface 126 through pushing, pulling, or rotating movements. Preferably, as shown... Figure 6As shown, the water passage 3 is provided with an internal thread 127, and the wastewater flow regulating valve 4 is provided with an external thread 48. The wastewater flow regulating valve 4 moves back and forth along the water passage 3 by engaging the external thread 48 with the internal thread 127. The engagement of the external thread 48 with the internal thread 127 allows the wastewater flow regulating valve 4 to rotate and move linearly simultaneously, which facilitates operation.

[0053] As a preferred embodiment of this application, such as Figures 1 to 7 As shown, the outer casing 1 includes a cylindrical body 11 and a seat 12 detachably connected together. The cylindrical body 11 and the seat 12 cooperate to form an installation cavity for installing the filter element 2. The wastewater outlet 121 and the wastewater discharge port 122 are located on the seat 12. The wastewater flow regulating valve 4 is installed on the seat 12, with one end of the wastewater flow regulating valve 4 exposed on the outside of the seat 12 and equipped with an operating component 5. Specifically, the cylindrical body 11 and the seat 12 can be detachably connected by at least one method such as threaded connection or snap-fit ​​connection, which facilitates the disassembly of the cylindrical body 11 and the seat 12 for replacement of the filter element 2. By setting the operating component 5, users can directly apply force to the operating component 5 to control the movement of the wastewater flow regulating valve 4. Taking the aforementioned wastewater flow regulating valve 4 being rotatably installed on the outer casing 1 as an example, the operating component 5 can be configured as an operating knob that is circumferentially limited by the wastewater flow regulating valve 4, so that the wastewater flow regulating valve 4 can be rotated back and forth by rotating the operating knob, improving the ease of operation.

[0054] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0055] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0056] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A portable water purifier, comprising a housing and a filter element disposed within the housing, characterized in that, The outer casing is provided with a wastewater outlet and a wastewater discharge port. The portable water purifier also includes a water passage. The wastewater outlet is used to guide the wastewater produced by the filter element through the water passage to the wastewater discharge port and discharge it outside the water purifier. The outer casing is equipped with a wastewater flow regulating valve. The wastewater flow regulating valve can move relative to the outer casing to regulate the wastewater flow in the water passage.

2. The portable water purifier according to claim 1, characterized in that, The water passage is formed in the wastewater flow regulating valve; When the wastewater flow regulating valve moves relative to the housing, it can change the size of the area connecting the water passage and the wastewater outlet; And / or, when the wastewater flow regulating valve moves relative to the housing, it can change the size of the area connecting the water passage and the wastewater discharge port.

3. The portable water purifier according to claim 2, characterized in that, The wastewater flow regulating valve includes a rotating shaft, the water passage is formed in the rotating shaft, the outer shell is provided with a rotating hole adapted to the rotating shaft, the wastewater outlet and the wastewater discharge port respectively pass through the rotating hole, and the rotating shaft is rotatably installed in the rotating hole.

4. The portable water purifier according to claim 3, characterized in that, The rotating shaft is provided with a stop boss, and the inner wall of the rotating hole is arranged with multiple stop grooves along the circumference. When the rotating shaft rotates in the rotating hole, the engagement between the stop boss and any one of the multiple stop grooves is changed to engagement with any other one.

5. The portable water purifier according to claim 3, characterized in that, The inner wall of the rotating hole is provided with a water-stopping and limiting boss, and the rotating shaft is provided with a stop boss. The first end of the water-stopping and limiting boss can abut against the stop boss when the rotating shaft rotates in one direction, and the second end of the water-stopping and limiting boss can abut against the stop boss when the rotating shaft rotates in another direction, so as to limit the rotation angle range of the rotating shaft. When the stop boss rotates from the position abutting against the first end to the position abutting against the second end, the wastewater flow rate in the water passage gradually increases.

6. The portable water purifier according to claim 3, characterized in that, The water passage has an inlet for connecting to the wastewater outlet and an outlet for connecting to the wastewater discharge outlet. The inlet and the outlet are arranged axially spaced along the rotating shaft. The rotating shaft is fitted with a first sealing body, a second sealing body, and a third sealing body that form a seal between the rotating shaft and the inner wall of the rotating hole. The first sealing body and the second sealing body are located on both sides of the inlet, and the second sealing body and the third sealing body are located on both sides of the outlet.

7. The portable water purifier according to claim 1, characterized in that, The water passage is formed in the housing. When the wastewater flow regulating valve moves relative to the housing, it adjusts the wastewater flow rate in the water passage by changing the size of the connecting area of ​​the water passage that connects the wastewater outlet and the wastewater discharge outlet.

8. The portable water purifier according to claim 7, characterized in that, The water passage is provided with a stop surface located between the wastewater outlet and the wastewater discharge port. The wastewater flow regulating valve has a water-stopping surface adapted to the stop surface. The wastewater flow regulating valve can move back and forth along the water passage to make the water-stopping surface abut or separate from the stop surface, thereby regulating the wastewater flow in the water passage.

9. The portable water purifier according to claim 8, characterized in that, The water passage is provided with an internal thread, and the wastewater flow regulating valve is provided with an external thread. The wastewater flow regulating valve moves back and forth along the water passage by engaging the external thread with the internal thread.

10. The portable water purifier according to claim 1, characterized in that, The outer casing includes a cylindrical body and a base body that are detachably connected together. The cylindrical body and the base body cooperate to form an installation cavity for installing the filter element. The wastewater outlet and the wastewater discharge port are located on the base body. The wastewater flow regulating valve is installed on the base body. One end of the wastewater flow regulating valve is exposed on the outside of the base body and is equipped with an operating element.

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