A portable water purifier cup

Abstract

This utility model relates to the field of water cup technology, and discloses a portable water purifier cup, including a cup body, a cup head assembly, and a filter device. The cup head assembly includes a cup head body and a mounting cylinder disposed on the cup head body. The cup head body is connected to the cup body and has a spout. The filter device is disposed inside the mounting cylinder and has an inlet end and an outlet end. The outlet end is connected to the spout, and the inlet end can communicate with the inner cavity of the cup body. The inlet end is provided with an adapter that can be connected to an external container. A fixing cap is detachably connected to the end of the mounting cylinder away from the cup head body. The fixing cap can confine the filter device inside the mounting cylinder and expose the inlet end of the filter device. This portable water purifier cup can be used in various ways according to user needs, selectively using the cup body or an external container to filter water, making the usage mode more diversified, adaptable to complex outdoor environments, and improving the convenience and safety of outdoor drinking water for users.

Description

Technical Field

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

[0002] In outdoor sports, camping, hiking and other scenarios, water bottles are an essential piece of equipment for users to meet their drinking needs.

[0003] Traditional water cups typically have functions such as holding water and keeping it warm, but they lack water purification capabilities. This makes it difficult for people who exercise or work outdoors to access clean water when there is no available clean water. To address this need, some water cups have added filters. For example, patent CN110811258A discloses a portable water filter cup, which includes an outer cup, an inner cup, and a lid. The inner cup is detachably installed inside the outer cup and has a filter assembly at its lower end that purifies the water entering the inner cup from bottom to top. When in use, water is taken out with the outer cup, and the inner cup is pressed down from top to bottom. The raw water passes through the filter assembly from bottom to top and enters the inner cup. This process continues until the inner cup is pressed to the bottom, completing one water intake and obtaining filtered water.

[0004] However, the above solution can only obtain purified water by using the outer cup and inner cup together. In complex outdoor conditions, the water purification function relies solely on the use of the outer cup and inner cup. In complex outdoor environments, if users do not want to contaminate the outer cup (e.g., the outer cup has been used to store other items or needs to be kept clean), or if they cannot carry the outer cup during extreme hiking due to weight or volume constraints, it is difficult to obtain purified water through the water bottle. The usage method is relatively simple, which limits the application scenarios of water bottles with water purification function.

[0005] Therefore, there is an urgent need for a portable water purifier cup to solve the above problems. Utility Model Content

[0006] Based on the above problems, the purpose of this utility model is to provide a portable water purifier cup that can change the way the cup is used according to the user's needs to obtain the required purified water. It has more diverse usage modes, can adapt to complex outdoor environments, and improves the convenience and safety of users drinking water outdoors.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A portable water purification cup is provided, comprising:

[0009] Cup body;

[0010] A cup head assembly includes a cup head body and a mounting cylinder disposed on the cup head body. The cup head body is connected to the cup body, and a spout is provided on the cup head body.

[0011] A filter device is disposed inside the mounting cylinder. The filter device has an inlet end and an outlet end. The outlet end is connected to the water outlet nozzle. The inlet end can communicate with the inner cavity of the cup body. The inlet end is provided with an adapter. The adapter can be connected to an external container bottle.

[0012] The mounting cylinder is detachably connected to a fixing cap at one end away from the cup head body. The fixing cap can confine the filter device inside the mounting cylinder and expose the adapter.

[0013] As an optional solution for the portable water purifier cup of this utility model, the filtration device includes a filter cartridge shell and a filter cartridge, wherein the filter cartridge is located inside the filter cartridge shell;

[0014] The filter cartridge housing has a water inlet on its first end face, which is the water inlet of the filtration device. The adapter includes a first connecting ring that is disposed around the water inlet, and the first connecting ring can be sleeved with the mouth of the external container bottle.

[0015] As an optional embodiment of the portable water purifier cup of this utility model, the water inlet is provided with a straw connector inside the first connecting ring, and the straw connector is used to connect with a straw.

[0016] As an optional solution for the portable water purifier cup of this utility model, the filter cartridge shell includes a first cylinder and a second cylinder connected sequentially along the water flow direction. Filter cartridges are provided in both the first cylinder and the second cylinder, and the filtration accuracy of the filter cartridge in the first cylinder is less than that of the filter cartridge in the second cylinder.

[0017] As an optional solution for the portable water purifier cup of this utility model, a first filter screen is provided at the water inlet to roughly intercept impurities and to ensure that the water inlet is evenly distributed.

[0018] And / or, a second filter screen is provided between the first cylinder and the second cylinder.

[0019] As an optional embodiment of the portable water purifier cup of this utility model, one of the outer wall of the filter cartridge shell and the inner wall of the mounting cylinder is provided with a guide protrusion, and the other of the outer wall of the filter cartridge shell and the inner wall of the mounting cylinder is provided with a guide groove. The guide protrusion and the guide groove can slide and engage in the mounting direction of the filter cartridge shell.

[0020] As an optional solution for the portable water purifier cup of this utility model, the filtration device includes a filter cartridge shell and a filter cartridge, wherein the filter cartridge is located inside the filter cartridge shell;

[0021] A water outlet is provided on the end face of the second end of the filter element housing. The water outlet is the water outlet of the filtration device. A plug-in part is provided at the water outlet, which can be plugged into and cooperate with the water outlet nozzle.

[0022] As an optional solution for the portable water purification cup of this utility model, the fixing cover includes an outer cylinder and an inner cylinder coaxially disposed within the outer cylinder. The inner cylinder is sleeved outside the adapter and can abut against the end of the adapter. The outer cylinder is detachably connected to the mounting cylinder.

[0023] As an optional embodiment of the portable water purifier cup of this utility model, the cup body is made of an elastic material so that the cup body can undergo elastic deformation under the action of external force.

[0024] As an optional embodiment of the portable water purifier cup of this utility model, the cup head assembly further includes a cup lid, which is used to seal and cover the water outlet.

[0025] And / or, the cup head body is detachably connected to the mounting cylinder.

[0026] The beneficial effects of this utility model are as follows:

[0027] This portable water purifier cup provides a convenient way to use water. Natural water sources (such as tap water, river water, or lake water) can be filled into the cup. The cup head assembly, along with the filter device, is then attached to the cup body. Inverting or squeezing the cup allows water to flow out sequentially through the inlet and outlet of the filter device and the spout on the cup head. The filter removes impurities and harmful substances (such as bacteria and parasites) from the water, resulting in purified drinking water. In other words, when there is no purified water available outdoors, this portable water purifier cup can filter natural water sources to provide clean drinking water, ensuring healthy drinking water and solving the problem of inconvenient outdoor drinking water access.

[0028] Furthermore, since the filter device has an adapter at the inlet, when it's inconvenient to use the cup to hold natural water, the cup head assembly and filter device can be removed together. An external container (such as a mineral water bottle or beverage bottle) can be used to hold the natural water, and the adapter can be connected to this external container. By inverting the external container, the natural water can also be purified by the filter device to meet outdoor water needs. At this time, the water flowing from the spout can be held in the cup, achieving water separation. Users can also store a certain amount of purified water in the cup for later use. After the filter device has been used for a period of time, the fixing cap can be removed, and the filter device can be taken out of the installation cylinder for cleaning or replacement, making maintenance convenient.

[0029] This portable water purifier cup can be used in various ways according to user needs. Users can selectively use the cup body or an external container to filter water and obtain purified water. It has more diverse usage modes, can adapt to complex outdoor environments, improve the convenience and safety of users' outdoor drinking water, and is easy to clean and maintain later. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0031] Figure 1 This is a structural schematic diagram of the portable water purifier cup provided in a specific embodiment of this utility model;

[0032] Figure 2 This is an exploded view of the portable water purifier cup provided in a specific embodiment of this utility model;

[0033] Figure 3 This is a cross-sectional schematic diagram of the cup head assembly and filter device provided in a specific embodiment of this utility model;

[0034] Figure 4 This is a first exploded view of the cup head assembly and filter device provided in a specific embodiment of the present utility model;

[0035] Figure 5 This is a second exploded view of the cup head assembly and filter device provided in a specific embodiment of the present utility model;

[0036] Figure 6 This is a schematic diagram of the adapter provided in a specific embodiment of the present invention after being connected to an external container bottle;

[0037] Figure 7 This is a schematic diagram of the adapter and straw provided in a specific embodiment of the present invention.

[0038] In the picture:

[0039] 1. Cup body; 2. Cup head assembly; 3. Filter device; 4. Outer cup;

[0040] 11. Second connecting part; 12. Second anti-slip structure;

[0041] 21. Cup head body; 22. Mounting cylinder; 23. Fixing cap; 24. Cup lid;

[0042] 211. Water outlet; 212. Snap-fit ​​protrusion; 213. First connecting part; 214. Handle bracket; 215. Handle groove;

[0043] 221. Guide groove; 222. Snap-fit ​​groove; 223. Through hole;

[0044] 231. Outer cylinder part; 232. Inner cylinder part;

[0045] 2311. First anti-slip structure; 2321. Step structure;

[0046] 241. End cap; 242. Anti-slip protrusion;

[0047] 31. Filter cartridge housing; 32. First filter screen; 33. Second filter screen;

[0048] 311. First cylinder; 312. Second cylinder; 313. Second connecting ring; 314. Adapter; 315. Straw connector; 316. Insertion part;

[0049] 3111, Inlet; 3121, Outlet; 3122, Guide protrusion;

[0050] 3161. Sealing sleeve;

[0051] 100. External container bottle; 200. Straw. Detailed Implementation

[0052] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0053] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0054] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] like Figures 1 to 5 As shown, this embodiment provides a portable water purifier cup. Not only can the cup itself purify water, but its core purification component can also connect to mineral water bottles and / or hoses, meeting the needs of diverse portable scenarios. In other words, this portable water purifier cup can change its usage mode according to user needs to obtain the required purified water, offering more diverse usage modes, adapting to complex outdoor environments, and improving the convenience and safety of outdoor drinking water.

[0056] Among them, see Figure 1 , Figure 2 and Figure 3 The portable water purifier cup includes a cup body 1, a cup head assembly 2, and a filter device 3. The cup head assembly 2 includes a cup head body 21 and a mounting cylinder 22 disposed on the cup head body 21. The cup head body 21 is connected to the cup body 1. After the cup head assembly 2 and the cup body 1 are assembled, the mounting cylinder 22 is located inside the cup body 1. A spout 211 is provided on the cup head body 21. The filter device 3 is disposed inside the mounting cylinder 22. The filter device 3 has an inlet end and an outlet end. The outlet end is connected to the spout 211, and the inlet end can communicate with the inner cavity of the cup body 1. The inlet end is provided with an adapter 314, which can be connected to an external container bottle 100. A fixing cap 23 is detachably connected to the end of the mounting cylinder 22 away from the cup head body 21. The fixing cap 23 can confine the filter device 3 within the mounting cylinder 22 and expose the adapter 314.

[0057] The portable water purifier cup provided in this embodiment allows you to fill the cup body 1 with natural water (such as tap water, river water, lake water, etc.), then attach the cup head assembly 2 along with the filter device 3 to the cup body 1. Inverting or squeezing the cup body 1 allows the water inside to flow out sequentially through the inlet and outlet of the filter device 3 and the spout 211 on the cup head body 21. The filter device 3 filters out impurities and harmful substances (such as bacteria, parasites, etc.) from the water, thus providing drinkable purified water. In other words, when there is no purified water available outdoors, this portable water purifier cup can filter natural water sources to obtain purified water, ensuring healthy drinking water and solving the problem of inconvenient outdoor drinking water access.

[0058] Furthermore, since the inlet end of the filter device 3 is equipped with an adapter 314, when it is inconvenient to use the cup body 1 to hold natural water, the cup head assembly 2 and the filter device 3 can be removed together, and the natural water can be held in an external container bottle 100 (such as a mineral water bottle, beverage bottle, etc.). Then, the adapter 314 can be connected to the external container bottle 100 (e.g., ...). Figure 6 As shown, by inverting the external container bottle 100, natural water sources can also be purified through the filter device 3 to obtain clean water, meeting outdoor water needs. At this time, the water flowing from the spout 211 can be collected in the cup body 1, achieving water separation. Users can also store a certain amount of clean water in the cup body 1 for later use. After the filter device 3 has been used for a period of time, the fixing cover 23 can be removed, and the filter device 3 can be taken out of the mounting cylinder 22 for cleaning or replacement, making maintenance convenient.

[0059] This portable water purifier cup can be used in various ways according to user needs. Users can selectively use the cup body 1 or the external container bottle 100 to filter water and obtain purified water. It has more diverse usage modes, can adapt to complex outdoor environments, improve the convenience and safety of users' outdoor drinking water, and is easy to clean and maintain later.

[0060] Optionally, the cup body 1 is made of an elastic material so that it can undergo elastic deformation under external force. When using the cup body 1 to hold water and obtain purified water, the water can flow through the filter device 3 more quickly by squeezing the bottle, thereby improving the water purification efficiency.

[0061] For example, the cup body 1 can be made of a flexible, soft material, such as soft silicone. In other embodiments, the cup body 1 can also be made of a thermoplastic elastomer (such as TPE, TPU, etc.).

[0062] Optionally, see Figure 2 The cup head body 21 is provided with a first connecting part 213, and the cup body 1 has a second connecting part 11 at the cup mouth. The first connecting part 213 and the second connecting part 11 are sealed together, realizing a detachable connection between the cup head assembly 2 and the cup body 1. In this embodiment, the first connecting part 213 is provided with an internal thread, and the second connecting part 11 is provided with an external thread. The first connecting part 213 and the second connecting part 11 are threadedly connected, which is reliable and easy to disassemble and assemble.

[0063] Optionally, see Figure 2 , Figure 3 and Figure 4 The filtration device 3 includes a filter housing 31 and a filter element (not shown), with the filter element located inside the filter housing 31. Water flows into the filter housing 31 and then through the filter element, removing impurities and harmful substances from the water, thus purifying outdoor natural water sources.

[0064] See Figure 3 and Figure 4 The filter cartridge housing 31 has an inlet 3111 on its first end face, which serves as the water inlet for the filter device 3. The adapter 314 includes a first connecting ring surrounding the inlet 3111, which can be fitted onto the mouth of the external container bottle 100. That is, the external container bottle 100 can be directly fitted onto the first connecting ring, making the connection operation convenient. In this embodiment, the first connecting ring has an internal thread, allowing for threaded connection to the mouth of the external container bottle 100.

[0065] For example, the adapter 314 can be designed to a standard diameter size, which can adapt to the standard bottle openings of similar bottles such as mineral water bottles and beverage bottles, thus having a wider range of applications.

[0066] In other embodiments, the first connecting ring can also be designed to directly insert into and tightly fit the bottle opening of the external container bottle 100, or to be provided with a snap-fit ​​structure to snap into the bottle opening of the external container bottle 100, as long as a reliable connection can be achieved.

[0067] Optionally, see Figure 3 and Figure 4 The inlet 3111 is located within the first connecting ring and is equipped with a straw connector 315, which is used to connect to the straw 200. That is, the straw 200 can be connected to the straw connector 315 and inserted into a natural water source (such as...). Figure 7 As shown, water is drawn through the spout 211 and flows through the filter device 3 to obtain purified water, meeting outdoor water needs. The straw connector 315 further expands the usage of the portable water filter cup, allowing users to obtain purified water by connecting the straw 200 even when there is no external container bottle 100 outdoors, making it more flexible in use.

[0068] For example, the straw connector 315 can be designed to be the same standard size as the straw 200, making it easy for users to connect straws 200 of various standard sizes.

[0069] This portable water purifier cup can be used in various scenarios. For example, in ultra-lightweight scenarios, simply carrying the cup head assembly 2 allows you to obtain water for filtration by connecting an external container bottle 100 and / or a straw 200. The cup head assembly 2 can be connected to the external container bottle 100 or the straw 200 alone, or to both simultaneously. In travel or sports scenarios, you can carry both the cup head assembly 2 and the cup body 1. After obtaining water from the cup body 1, assemble the cup head assembly 2 with the cup body 1, invert the cup body 1, or squeeze the cup body 1 to allow the water to pass through the filtration device 3 of the cup head assembly 2 for direct drinking.

[0070] See Figure 3 , Figure 4 and Figure 5 The filter cartridge housing 31 includes a first cylindrical body 311 and a second cylindrical body 312 connected sequentially along the water flow direction. Filter cartridges are installed inside both the first cylindrical body 311 and the second cylindrical body 312, with the filtration accuracy of the filter cartridge in the first cylindrical body 311 being lower than that of the filter cartridge in the second cylindrical body 312. This arrangement allows for two-stage filtration to purify the water, ensuring the resulting purified water meets drinking requirements. In this embodiment, the first end of the filter cartridge housing 31, i.e., the end of the first cylindrical body 311 away from the second cylindrical body 312, and the second end of the filter cartridge housing 31, i.e., the end of the second cylindrical body 312 away from the first cylindrical body 311.

[0071] For example, a PP cotton filter and / or an activated carbon filter can be installed inside the first cylinder 311 to perform primary filtration of large particulate impurities (such as silt, suspended solids, etc.) in the water, protecting the filter element inside the second cylinder 312 and extending its lifespan. The activated carbon filter can absorb odors and improve the taste. A hollow fiber ultrafiltration membrane or a ceramic filter can be installed inside the second cylinder 312 to remove bacteria, microorganisms, etc. in the water, ensuring drinking water safety.

[0072] Of course, in some embodiments, only one filter element may be installed inside the filter element housing 31. The number of filter elements can be selected according to the actual design requirements.

[0073] Optionally, see Figure 3 , Figure 4 and Figure 5 The first cylinder 311 and the second cylinder 312 are detachably connected by a second connecting ring 313, facilitating the disassembly and assembly of the first cylinder 311 and the second cylinder 312 for replacing or cleaning the filter elements inside. In this embodiment, one end of the first cylinder 311 is inserted into and tightly fitted with the second connecting ring 313, allowing for disassembly and assembly via insertion and removal. The other end of the second cylinder 312 is threadedly connected to the second connecting ring 313, allowing for disassembly and assembly via screwing.

[0074] Furthermore, sealing rings are provided between the first cylinder 311 and the second connecting ring 313, as well as between the second cylinder 312 and the second connecting ring 313, so that the first cylinder 311 and the second cylinder 312 are sealed to the second connecting ring 313 to prevent water leakage.

[0075] Of course, in other embodiments, the first cylinder 311 and the second cylinder 312 may both be threaded or plugged into the second connecting ring 313.

[0076] See Figure 3A first filter screen 32 is provided at the water inlet 3111. The first filter screen 32 is used to coarsely intercept impurities, which can filter out large particles of impurities in the water in advance and protect the filter element inside the filter element shell 31. At the same time, the first filter screen 32 can make the water inlet at the water inlet evenly distributed. In this embodiment, multiple filter holes arranged in an array are provided on the end face of the first cylinder 311 to form the first filter screen 32, and the multiple filter holes form the water inlet 3111. The suction pipe connector 315 is provided in the area where the multiple filter holes are located, and the adapter 314 is provided outside the area where the multiple filter holes are located.

[0077] In other embodiments, a water inlet hole can be formed by opening a hole on the end face of the first cylinder 311, and a first filter screen 32 can be installed separately at the water inlet hole.

[0078] Optionally, see Figure 3 A second filter screen 33 is provided between the first cylinder 311 and the second cylinder 312. The second filter screen 33 can separate the internal spaces of the first cylinder 311 and the second cylinder 312, so that the filter element in the first cylinder 311 and the filter element in the second cylinder 312 are separated, while ensuring that the water flow between the first cylinder 311 and the second cylinder 312 is unobstructed.

[0079] See Figure 3 and Figure 5 A water outlet 3121 is provided on the end face of the second end of the filter element housing 31. The water outlet 3121 is the water outlet end of the filter device 3. A plug-in part 316 is provided at the water outlet 3121, which can be plugged into the water outlet 211. After the filter device 3 is installed in the mounting cylinder 22, the plug-in part 316 is inserted into the water outlet 211, so that the filtered water can be output from the water outlet 211.

[0080] Optionally, a sealing sleeve 3161 is provided on the plug part 316. After the plug part 316 is inserted into the water outlet 211, the sealing sleeve 3161 is sandwiched between the outer wall of the plug part 316 and the inner wall of the water outlet 211, so that the plug part 316 and the water outlet 211 are sealed and plugged together to prevent water leakage and prevent unfiltered water from entering the water outlet 211.

[0081] See Figure 4 and Figure 5One of the outer wall of the filter element housing 31 and the inner wall of the mounting cylinder 22 is provided with a guide protrusion 3122, and the other of the outer wall of the filter element housing 31 and the inner wall of the mounting cylinder 22 is provided with a guide groove 221. The guide protrusion 3122 and the guide groove 221 can slide and engage in the installation direction of the filter element housing 31. When installing the filter device 3, the guide protrusion 3122 is aligned with the guide groove 221 and inserted, and then the filter element housing 31 is pushed into the mounting cylinder 22, so that the filter device 3 can be accurately installed in place. That is, the engagement of the guide protrusion 3122 and the guide groove 221 can guide the filter element housing 31 to be inserted into the mounting cylinder 22 in a preset direction, ensuring that the insertion part 316 on the filter element housing 31 can be accurately inserted into the outlet 211. At the same time, the engagement of the guide protrusion 3122 and the guide groove 221 can restrict the rotation of the filter element housing 31 in the circumferential direction, ensuring that the filter element housing 31 is stably installed in the mounting cylinder 22.

[0082] See Figure 3 and Figure 5 The mounting cylinder 22 has a through hole 223 at the position of the corresponding insertion part 316. After the insertion part 316 passes through the through hole 223, it is inserted into the water outlet 211. At the same time, the sealing sleeve 3161 is in sealing contact with the hole wall of the through hole 223 to prevent water leakage at the through hole 223.

[0083] Optionally, see Figure 3 and Figure 5 The fixing cover 23 includes an outer cylinder portion 231 and an inner cylinder portion 232 coaxially disposed within the outer cylinder portion 231. The inner cylinder portion 232 is sleeved on the outside of the adapter 314 and can abut against the end of the adapter 314. The outer cylinder portion 231 is detachably connected to the mounting cylinder 22. After the filter device 3 is installed into the mounting cylinder 22, the fixing cover 23 is connected to the mounting cylinder 22. Specifically, the outer cylinder portion 231 of the fixing cover 23 is connected to the mounting cylinder 22, while the inner cylinder portion 232 of the fixing cover 23 is sleeved on the outside of the adapter 314. After the fixing cover 23 is installed in place, the inner cylinder portion 232 abuts against the end of the adapter 314 to limit the filter device 3 within the mounting cylinder 22.

[0084] In this embodiment, the outer cylinder 231 and the inner cylinder 232 are integrally formed, and the outer cylinder 231 and the inner cylinder 232 have an opening at the end away from the mounting cylinder 22. The adapter 314 and the straw 200 structure can be exposed from the opening, which facilitates connection to the external container bottle 100 or the straw 200.

[0085] Optionally, the outer cylinder 231 is provided with internal threads, and the mounting cylinder 22 is provided with external threads. The outer cylinder 231 and the mounting cylinder 22 are threadedly connected, making disassembly and assembly convenient. In other embodiments, the outer cylinder 231 can also be snapped into the mounting cylinder 22 by a snap-fit ​​mechanism.

[0086] Optionally, see Figure 3 and Figure 5The inner wall of the inner cylinder 232 is provided with a stepped structure 2321. After the fixed cover 23 is installed in place, the end of the adapter 314 abuts against the stepped structure 2321 to limit the position of the fixed cover 23 on the filter device 3.

[0087] Optionally, see Figure 4 The outer cylindrical portion 231 of the fixed cover 23 is provided with a first anti-slip structure 2311 to facilitate the screwing and unscrewing of the fixed cover 23 during disassembly and assembly. For example, the first anti-slip structure 2311 may be an anti-slip texture or anti-slip protrusions, etc.

[0088] Optionally, see Figure 1 and Figure 4 The cup head assembly 2 also includes a cup lid 24, which is used to seal and cover the water outlet 211 to prevent leakage during the carrying of the portable water purifier cup. In this embodiment, a plug 241 protrudes from the inside of the cup lid 24, and the plug 241 can be inserted into the water outlet 211 to seal and cover the water outlet 211. Exemplarily, the plug 241 and the water outlet 211 can be designed to be interference-fitted, and the cup lid 24 can be installed and removed by plugging and unplugging to ensure a stable connection between the cup lid 24 and the water outlet 211.

[0089] Of course, in other embodiments, the cup lid 24 can also be designed to be threaded or snap-fit ​​connected to the spout 211.

[0090] See Figure 4 The cup lid 24 is provided with anti-slip protrusions 242, which makes it easy for users to apply force to install or remove the cup lid 24.

[0091] Optionally, the cup head body 21 and the mounting cylinder 22 are detachably connected, facilitating later disassembly and cleaning and avoiding cleaning dead spots. In this embodiment, see [reference needed]. Figure 4 and Figure 5 The mounting cylinder 22 has multiple snap-fit ​​grooves 222 spaced around its circumference, and the cup head body 21 has snap-fit ​​protrusions 212 that correspond one-to-one with the multiple snap-fit ​​grooves 222. The cup head body 21 can be fitted over the mounting cylinder 22 and snapped into place by the multiple snap-fit ​​protrusions 212 and the multiple snap-fit ​​grooves 222, thus achieving a detachable connection between the mounting cylinder 22 and the cup head body 21.

[0092] In other embodiments, the cup head body 21 and the mounting cylinder 22 can also be detachably connected by a threaded connection.

[0093] See Figure 1 and Figure 2 A handle 214 is provided on the cup head body 21, and a handle groove 215 is formed between the handle 214 and the cup body 1. Users can grasp the handle 214 through the handle groove 215 to easily pick up the water cup.

[0094] See Figure 1 and Figure 2 The portable water purifier also includes an outer cup 4, which is fitted over the cup body 1 and located at the end furthest from the cup head assembly 2. In use, the outer cup 4 can be removed to collect water poured from the spout 211, providing a convenient water-receiving function. Furthermore, designing the outer cup 4 to fit over the end of the cup body 1 furthest from the cup head assembly 2 does not increase the cup's height, making it easy for users to carry when out and about. With a fixed cup volume, it maximizes the water capacity to meet the user's water needs.

[0095] Optionally, the outer cup 4 can be made of metal. When used outdoors, the outer cup 4 can be used to hold water and be heated directly by an external heat source (such as a flame, firewood, alcohol stove, etc.) to achieve functions such as boiling water and cooking noodles, solving the problem of carrying outdoor cooking utensils, expanding the functions of portable water purification cups, and enhancing the flexibility of use.

[0096] For example, in outdoor camping scenarios, you can carry a cup head assembly 2 / cup body 1 / outer cup 4 (outer cup 4 made of metal material). Dirty natural water can be put into the cup body 1, filtered by the filter device 3 of the cup head assembly 2, and then put into the outer cup 4 for other purposes, such as drinking directly, boiling water, cooking noodles, etc.

[0097] Optionally, see Figure 1 The outer circumferential surface of the cup body 1 is provided with a second anti-slip structure 12, which serves to prevent slippage and facilitate user gripping. For example, the second anti-slip structure 12 may be a protrusion such as a strip protruding from the cup body 1.

[0098] Furthermore, the outer cup 4 is tightly fitted to the cup body 1 through the second anti-slip structure 12 on the outer periphery of the cup body 1, so that the outer cup 4 can be stably fitted onto the cup body 1.

[0099] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A portable water purifying cup, characterized in that, include: Cup body (1); The cup head assembly (2) includes a cup head body (21) and an mounting cylinder (22) disposed on the cup head body (21). The cup head body (21) is connected to the cup body (1), and a spout (211) is provided on the cup head body (21). A filter device (3) is installed inside the mounting cylinder (22). The filter device (3) has an inlet end and an outlet end. The outlet end is connected to the water outlet (211). The inlet end can be connected to the inner cavity of the cup body (1). The inlet end is provided with an adapter (314). The adapter (314) can be connected to an external container bottle (100). The mounting cylinder (22) is detachably connected to a fixing cap (23) at one end away from the cup head body (21). The fixing cap (23) can confine the filter device (3) inside the mounting cylinder (22) and expose the adapter (314).

2. The portable water purification cup of claim 1, wherein, The filtration device (3) includes a filter housing (31) and a filter element, wherein the filter element is located inside the filter housing (31); The filter housing (31) has an inlet (3111) on the end face of the first end. The inlet (3111) is the water inlet of the filter device (3). The adapter (314) includes a first connecting ring that is arranged around the inlet (3111). The first connecting ring can be connected to the mouth of the external container bottle (100).

3. The portable water purification cup of claim 2, wherein, The water inlet (3111) is located inside the first connecting ring and is provided with a straw connector (315), which is used to connect with the straw (200).

4. The portable water purification cup of claim 2, wherein, The filter cartridge housing (31) includes a first cylinder (311) and a second cylinder (312) connected sequentially along the water flow direction. Filter cartridges are provided in both the first cylinder (311) and the second cylinder (312), and the filtration accuracy of the filter cartridge in the first cylinder (311) is less than that of the filter cartridge in the second cylinder (312).

5. The portable water purification cup of claim 4, wherein, A first filter screen (32) is provided at the water inlet (3111); And / or, a second filter screen (33) is provided between the first cylinder (311) and the second cylinder (312).

6. The portable water purification cup of claim 2, wherein, One of the outer wall of the filter element housing (31) and the inner wall of the mounting cylinder (22) is provided with a guide protrusion (3122), and the other of the outer wall of the filter element housing (31) and the inner wall of the mounting cylinder (22) is provided with a guide groove (221). The guide protrusion (3122) and the guide groove (221) can slide in the mounting direction of the filter element housing (31).

7. The portable water purification cup of claim 1, wherein, The filtration device (3) includes a filter housing (31) and a filter element, wherein the filter element is located inside the filter housing (31); A water outlet (3121) is provided on the end face of the second end of the filter cartridge housing (31). The water outlet (3121) is the water outlet end of the filter device (3). A plug-in part (316) is provided at the water outlet (3121). The plug-in part (316) can be plugged into the water nozzle (211).

8. The portable water purification cup of any one of claims 1-7, wherein, The fixing cover (23) includes an outer cylinder (231) and an inner cylinder (232) coaxially disposed within the outer cylinder (231). The inner cylinder (232) is sleeved on the adapter (314) and can abut against the end of the adapter (314). The outer cylinder (231) is detachably connected to the mounting cylinder (22).

9. The portable water purification cup of any one of claims 1-7, wherein, The cup body (1) is made of an elastic material so that the cup body (1) can undergo elastic deformation under the action of external force.

10. The portable water purification cup of any one of claims 1-7, wherein, The cup head assembly (2) also includes a cup lid (24) for sealing the spout (211); And / or, the cup head body (21) is detachably connected to the mounting cylinder (22).

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