Hand-pressing water purification cup

Abstract

The utility model relates to the technical field of water cups, in particular to a hand-pressing water purifying cup, which is characterized in that a filter component is directly plugged at the bottom of an inner cup, so that sewage in an outer cup can quickly penetrate through the filter component to enter the inner cup when a user performs mutual filter pressing on the inner cup and the outer cup in the later period, and the water purifying effect is improved. The through-flow efficiency is improved; and the filter pressing resistance is reduced. In addition, the filtering assembly and the water inlet are in rotary buckling connection, tight connection of the filtering assembly and the water inlet is guaranteed, rapid disassembly and assembly in the later period are facilitated, and use convenience is improved. In addition, the outer wall of the other end of the filtering assembly abuts against the inner wall of the outer cup, sundries attached to the inner wall of the outer cup can be scraped to the bottom, and cleaning is convenient. And the design can prevent water in the outer cup from flowing out of a gap between the outer cup and the inner cup during filter pressing, so that the pressure between the bottom of the outer cup and the filter assembly is stable in the filter pressing process, and normal filter pressing is guaranteed.

Description

Technical Field

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

[0002] With the rise of outdoor sports, safety has become a primary concern. Since outdoor sports take place in the wild and lack adequate facilities, drinking water safety becomes a top priority. Currently, outdoor water collection typically involves carrying a filtration device before use. These devices usually have a built-in filter inside the water container, typically installed on an internal straw or lid, as illustrated by patent CN201910323084.5 – a portable water filter lid. Users filter the water by drawing it in, a very slow process. Impurities in the wastewater can easily clog the filter's inlet, and the human body's suction power is limited, making it difficult to increase filtration efficiency. This often leads to difficulty in obtaining water, requiring users to constantly clean the filter's inlet to achieve faster water collection.

[0003] To address the above issues, the industry has designed a pressure filter cup that uses the pressure of an arm to force the wastewater inside the cup to be filtered quickly. For example, patent CN202020422458.7 - Hand-pressed Filter Cup - allows the filter housing to be unscrewed to clean impurities from the filter element. If cleaning is insufficient, the filter element can be quickly replaced by removing it from the clip on the top cover. However, the connection between the top cover and the bottom of the inner cup in this patent is a snap-fit ​​structure, which is inconvenient for disassembly and assembly. Furthermore, the clip penetrates the top cover and enters the interior of the filter element; improper disassembly or assembly can easily lead to clip breakage, affecting subsequent use and reducing overall ease of use. Utility Model Content

[0004] To achieve the above objectives, this utility model provides a hand-operated water purifier cup, including an outer cup, an inner cup, and a filter assembly. The inner cup can be movably inserted into the outer cup and can be separated from it. The upper end of the inner cup is provided with an openable and closable lid. The bottom of the inner cup is provided with a water inlet. The inner walls on both sides opposite to the water inlet are provided with insertion slots along the axial direction. The inner walls on both sides opposite to the water inlet are provided with retaining grooves along the circumferential direction at the top of the insertion slots. The retaining grooves and insertion slots are T-shaped and interconnected. The outer wall of one end of the filter assembly is provided with a protrusion that cooperates with the insertion slots and retaining grooves. The end of the filter assembly with the protrusion can be inserted into the water inlet, and the protrusion is locked onto either end of the retaining groove. The outer wall of the other end of the filter assembly can abut against the inner wall of the outer cup.

[0005] In some possible embodiments, both ends of the insertion slot and the buckle slot are provided with positioning slots, and the protrusion is provided with positioning protrusions that cooperate with the positioning slots.

[0006] In some possible embodiments, a smooth bevel is provided on the outer edge of the insertion slot.

[0007] In some possible embodiments, the filtration assembly includes a filter base and a pre-filter. One end of the filter base is fitted into the water inlet. The filter base has a filter chamber with an opening at the lower end. The pre-filter is fitted onto the opening of the filter chamber. Several filter elements are inserted through the upper part of the filter chamber, allowing water in the filter chamber to enter the inner cup through the filter elements. At least one sealing element is provided between the outer wall of the filter base away from the inner cup and the inner wall of the outer cup. The protrusion is provided on the outer wall of the corresponding end of the filter base.

[0008] In some possible embodiments, the filter seat has a first groove and a second groove on the outer wall at one end of the outer cup. The first groove is closer to the inner cup than the second groove. The sealing element is provided in both the first groove and the second groove, and the outer periphery of the sealing element abuts against the inner wall of the outer cup.

[0009] In some possible embodiments, the second groove has an air exchange notch on its side near the pre-filter.

[0010] In some possible embodiments, the pre-filter includes an outer filter cover and an inner filter cover, both of which have a plurality of water inlet holes. The inner filter cover is fastened inside the outer filter cover. A pre-filter element is disposed between the outer filter cover and the inner filter cover. The outer wall of the outer filter cover can be snapped into the opening of the filter chamber. A sealing element is also disposed between the outer wall of the outer filter cover and the opening of the filter chamber.

[0011] In some possible embodiments, the inner wall of the filter chamber opening is provided with a locking structure, and the outer wall of the outer filter cover is provided with a protruding ring that cooperates with the locking structure.

[0012] In some possible embodiments, the bottom outer periphery of the outer filter cover is provided with an abutment edge that abuts against the end face of the filter cavity opening.

[0013] In some possible embodiments, the cup lid is provided with a water outlet, and a fastening position is provided on the outer side of the cup lid around the water outlet. A fastening cover is hinged to the fastening position, and the fastening position is provided with a relief groove to accommodate the swinging of the fastening cover. The fastening cover can be fastened to the fastening position, and the fastening cover is provided with a sealing plug for sealing the water outlet.

[0014] Compared to existing technologies, the advantages of this invention are as follows: The hand-operated water filter cup of this invention directly seals the filter assembly at the bottom of the inner cup. This facilitates quick passage of wastewater from the outer cup into the inner cup during subsequent pressure filtration between the inner and outer cups, improving flow efficiency and reducing filtration resistance. Furthermore, the filter assembly and inlet are connected by a rotating snap-fit ​​mechanism, ensuring a tight connection and facilitating quick assembly and disassembly, thus enhancing ease of use. Additionally, the outer wall of the other end of the filter assembly presses against the inner wall of the outer cup, effectively scraping away debris adhering to the inner wall for easy cleaning. This design also prevents water from leaking out of the gap between the outer and inner cups during filtration, ensuring stable pressure between the bottom of the outer cup and the filter assembly, and guaranteeing normal filtration operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of the hand-pressed water purifier cup provided for an embodiment of this utility model;

[0017] Figure 2 An exploded view of the hand-operated water purifier cup provided in this embodiment of the utility model;

[0018] Figure 3 A cross-sectional view of the hand-operated water purifier cup provided in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the filter assembly provided in an embodiment of the present utility model;

[0020] Figure 5a for Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5b for Figure 3 A magnified view of a section at point B in the middle.

[0022] Reference numerals: Outer cup 10, Inner cup 20, Inlet 21, Insertion groove 22, Snap groove 23, Positioning groove 24, Smooth bevel 25, Limiting ring platform 26, Ring groove 27, Sealing ring 28, Filter assembly 30, Protrusion 31, Positioning protrusion 32, Filter seat 33, Filter chamber 34, Filter element 35, Sealing element 36, First groove 37, Second groove 38, Ventilation notch 39, Outer filter cover 3a, Inner filter cover 3b, Inlet hole 3c, Pre-filter element 3d, Clamping structure 3e, Protruding ring 3f, Abutting edge 3g, Cup cover 40, Outlet 41, Snap position 42, Snap cover 43, Avoidance groove 44, Sealing plug 45. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0024] Reference Figures 1 to 4 The hand-operated water purifier cup shown includes an outer cup 10, an inner cup 20, and a filter assembly 30. The inner cup 20 can be movably inserted into the outer cup 10 and can be separated from it. The upper end of the inner cup 20 is provided with an openable and closable cup lid 40. The bottom of the inner cup 20 is provided with a water inlet 21. The inner walls on both sides opposite to the water inlet 21 are provided with insertion slots 22 along the axial direction. The inner walls on both sides opposite to the water inlet 21 are provided with retaining grooves 23 along the circumferential direction at the top of the insertion slots 22. The retaining grooves 23 and the insertion slots 22 are T-shaped and interconnected. The outer wall of one end of the filter assembly 30 is provided with a protrusion 31 that cooperates with the insertion slots 22 and retaining grooves 23. The end of the filter assembly 30 with the protrusion 31 can be inserted into the water inlet 21 and the protrusion 31 is locked on either end of the retaining groove 23. The outer wall of the other end of the filter assembly 30 can press against the inner wall of the outer cup 10.

[0025] Specifically, in the above embodiments, the filter assembly 30 can be a single-stage filtration structure or a multi-stage filtration structure, which is selected according to the actual usage requirements. In the above embodiments, the upper opening of the cup lid 40 and the inner cup 20 can be connected by threads for easy cleaning by users later. In addition, to ensure aesthetics, a limiting ring platform 26 is provided on the outer wall of the inner cup 20 near the cup lid 40. When the filtration is completed, the limiting ring platform 26 abuts against the cup mouth end face of the outer cup 10. At the same time, to ensure the sealing between the inner cup 20 and the outer cup 10, an annular groove 27 is provided below the limiting ring platform 26 in the inner cup 20. A sealing ring 28 is provided in the annular groove 27, and the outer ring of the sealing ring 28 abuts against the cup mouth side wall of the outer cup 10.

[0026] Furthermore, in the above embodiment, the retaining groove 23 and the insertion slot 22 are designed in a T-shape, which facilitates the user to insert the corresponding end of the filter assembly 30 into the water inlet 21, ensuring that the filter assembly 30 can seal the water inlet 21 and guarantee the subsequent filtration sealing. At the same time, the protrusion 31 is finally locked in the retaining groove 23, and this design prevents the filter assembly 30 from falling out of the water inlet 21 during use.

[0027] This hand-operated water filter cup improves upon existing filter cups by repositioning the inner cup 20. The filter assembly 30 is directly sealed at the bottom of the inner cup 20, facilitating efficient flow of wastewater from the outer cup 10 into the inner cup 20 during mutual pressure filtration. This improves flow efficiency and reduces filtration resistance. Furthermore, the filter assembly 30 and the inlet 21 are connected by a rotating snap-fit ​​mechanism, ensuring a tight connection and facilitating quick assembly and disassembly, enhancing usability. Additionally, the outer wall of the filter assembly 30 presses against the inner wall of the outer cup 10. This design allows debris adhering to the inner wall of the outer cup 10 to be scraped to the bottom during filtration, facilitating cleaning. This design also prevents water in the outer cup 10 from flowing out through the gap between the outer cup 10 and the inner cup 20, ensuring stable pressure between the bottom of the outer cup 10 and the filter assembly 30 and ensuring proper filtration.

[0028] In the above embodiments, to ensure that the filter assembly 30 is securely held within the inlet 21, positioning slots 24 are provided at both ends of the insertion slot 22 and the retaining slot 23, and positioning protrusions 32 that cooperate with the positioning slots 24 are provided on the protrusion 31. When the filter assembly 30 rotates the protrusion 31 to either end of the retaining slot 23, the positioning protrusions 32 are engaged within the positioning slots 24. This structural design prevents the filter assembly 30 from becoming loose relative to the inlet 21, achieving a secure connection between the two. In this application, the positioning slots 24 are parallel to the axis of the outer cup 10.

[0029] In the above embodiments, in order to facilitate the user to insert the entire filter assembly 30 into the water inlet 21, in one embodiment of this application, a rounded bevel 25 is provided on the edge of the insertion slot 22 at the outer end, so that the protrusion 31 can be inserted into the insertion slot 22.

[0030] In some possible embodiments, refer to Figures 2 to 5b As shown, in order to accommodate the large diameter of the inlet 21 and ensure a stable connection with it, the filter assembly 30 includes a filter base 33 and a pre-filter. One end of the filter base 33 is fitted into the inlet 21. The filter base 33 has a filter chamber 34 with an opening at the lower end. The pre-filter is fitted into the opening of the filter chamber 34. Several filter elements 35 are inserted through the upper part of the filter chamber 34. The water in the filter chamber 34 can enter the inner cup 20 through the filter elements 35. At least one sealing element 36 is provided between the outer wall of the filter base 33 away from the inner cup 20 and the inner wall of the outer cup 10. A protrusion 31 is provided on the outer wall of the corresponding end of the filter base 33.

[0031] Specifically, the filter base 33 is stepped columnar in shape. The smaller diameter end is inserted into the inlet 21, and a protrusion 31 is located on the outer wall of this smaller diameter end. The outer diameter of the larger diameter end matches the outer diameter of the inner cup, and a sealing element 36 is located on the outer wall of this larger diameter end. The end face of the inlet 21 directly abuts against the step on the outer wall of the filter base 33. In the above embodiment, the filter element 35 is a filter rope, which is directly clipped onto the mounting hole at the end of the filter base 33 near the inner cup 20. This allows for communication between the filter base 33 and the inner cup 20 and facilitates the installation of the filter rope. In this embodiment, a two-stage filtration method is used, which helps improve the filtration effect.

[0032] In some possible embodiments, refer to Figure 2 , Figure 3 and Figure 5aAs shown, to further improve the sealing between the filter seat 33 and the inner wall of the outer cup 10, and to ensure that no pressure leakage occurs during the filtration process, thus affecting normal use, a first groove 37 and a second groove 38 are provided on the outer wall of the filter seat 33 at one end of the outer cup 10. The first groove 37 is closer to the inner cup 20 than the second groove 38. Both the first groove 37 and the second groove 38 are provided with sealing elements 36, the outer periphery of which abuts against the inner wall of the outer cup 10. Specifically, the sealing element 36 in the first groove 37 has a V-shaped cross-section, with both ends of the V-shaped opening abutting against the inner wall of the outer cup 10, thus achieving a double-layer seal. The V-shaped design also provides space for deformation on either side. The sealing element 36 in the second groove 38 has a U-shaped cross-section, with one side of the U-shape abutting against the inner wall of the outer cup 10. In fact, the openings of the two seals 36 are perpendicular. The opening of the seal 36 in the second groove 38 faces the axial direction of the filter seat 33, while the opening of the seal 36 in the first groove 37 is in the same radial direction as the filter seat 33. Furthermore, the seal 36 in the second groove 38 has a slope at both ends along the axial direction of the filter seat 33 on its outward side, which facilitates the sliding of the filter seat 33 relative to the outer cup 10.

[0033] In the above embodiments, due to the double-sealed structural design, when the inner cup 20 drives the filter seat 33 to slide relative to the outer cup 10, it is easy for an air seal to be formed between the first groove 37 and the second groove 38, which will adsorb the entire filter seat 33 and make it difficult for the filter seat 33 to slide relative to the outer cup 10. Therefore, in order to facilitate the discharge of the pressurized gas between the two seals 36, a ventilation notch 39 is provided on the side of the second groove 38 near the pre-filter. This design allows the seals 36 in the second groove 38 to deform to a certain extent and discharge the gas inside, reducing the adsorption pressure.

[0034] In some possible embodiments, refer to Figure 2 , Figure 3 and Figure 5bAs shown, pre-filters are generally used to filter large particles in wastewater, requiring frequent cleaning. To facilitate replacement and cleaning, the pre-filter includes an outer filter cover 3a and an inner filter cover 3b. Both the outer and inner filter covers 3a and 3b have several inlet holes 3c. The inner filter cover 3b is fitted inside the outer filter cover 3a. A pre-filter element 3d is positioned between the outer and inner filter covers 3a and 3b. The outer wall of the outer filter cover 3a can be fitted into the opening of the filter chamber 34, and a sealing element 36 is provided between the outer wall of the outer filter cover 3a and the opening of the filter chamber 34. The outer and inner filter covers 3a are designed to be detachable, facilitating the replacement of the internal pre-filter element 3d. In addition, a sealing element 36 is also provided between the outer wall of the outer filter cover 3a and the opening of the filter chamber 34. This ensures that the sewage in the outer cup 10 can only pass through the outer filter cover 3a, the pre-filter element 3d and the inner filter cover 3b in sequence before entering the filter chamber 34, thus ensuring the quality of filtration.

[0035] In some possible embodiments, refer to Figure 2 , Figure 3 and Figure 5b In order to facilitate the entire outer filter cover 3a being clamped in the opening of the filter chamber 34, the inner wall of the opening of the filter chamber 34 is provided with a clamping structure 3e, and the outer wall of the outer filter cover 3a is provided with a protruding ring 3f that cooperates with the clamping structure 3e.

[0036] In the above-described improved embodiment, in order to prevent the user from using excessive force during the assembly process and causing the entire outer filter cover 3a to be stuck into the filter cavity 34, an abutment edge 3g is provided extending outward from the bottom outer periphery of the outer filter cover 3a. The abutment edge 3g abuts against the end face of the opening of the filter cavity 34. The abutment edge 3g actually serves as a limiting and sealing function.

[0037] In some possible embodiments, refer to Figure 2 and Figure 3 As shown, the cup lid 40 has a water outlet 41. A latching position 42 is located on the outer side of the cup lid 40 around the water outlet 41. A latching cover 43 is hinged to the latching position 42. The latching position 42 has a relief groove 44 adapted to the swinging of the latching cover 43, allowing the latching cover 43 to be fastened onto the latching position 42. The latching cover 43 has a sealing plug 45 for blocking the water outlet 41. The latching cover 43 is actually hinged to the opposite side walls of the relief groove 44 via a pivot. Both opposite side walls of the relief groove 44 have limiting arc grooves, and the relief groove 44 has limiting posts that can slide within the limiting arc grooves, limiting the swinging angle of the latching cover 43. Furthermore, the latching position 42 has a snap-fit ​​structure at the end of the latching cover 43 near the sealing plug 45, facilitating a secure fastening of the latching cover 43 onto the latching position 42.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A hand-operated water purifier cup, comprising an outer cup, an inner cup, and a filter assembly, wherein the inner cup is movably inserted into and can be separated from the outer cup, and the upper end of the inner cup is provided with an openable and closable lid; characterized in that, The bottom of the inner cup is provided with a water inlet. On the inner walls of the two opposite sides of the water inlet, there are insertion slots arranged axially. On the inner walls of the two opposite sides of the inner cup, there are retaining grooves arranged circumferentially at the top of the insertion slots. The retaining grooves and insertion slots are T-shaped and interconnected. The outer wall of one end of the filter assembly is provided with a protrusion that cooperates with the insertion slots and retaining grooves. The end of the filter assembly with the protrusion can be inserted into the water inlet and the protrusion is locked on either end of the retaining groove. The outer wall of the other end of the filter assembly can abut against the inner wall of the outer cup.

2. The hand-operated water purifier cup according to claim 1, characterized in that, Both ends of the insertion slot and the buckle slot are provided with positioning slots, and the protrusion is provided with positioning protrusions that cooperate with the positioning slots.

3. A hand-operated water purifier cup according to claim 1, characterized in that, The insertion slot has a smooth bevel on the outer edge.

4. A hand-operated water purifier cup according to claim 1, characterized in that, The filtration assembly includes a filter base and a pre-filter. One end of the filter base is fitted into the water inlet. The filter base has a filter chamber with an opening at the bottom. The pre-filter is fitted into the opening of the filter chamber. Several filter elements are inserted through the upper part of the filter chamber, allowing water in the filter chamber to enter the inner cup through the filter elements. At least one sealing element is provided between the outer wall of the filter base away from the inner cup and the inner wall of the outer cup. The protrusion is provided on the outer wall of the corresponding end of the filter base.

5. A hand-operated water purifier cup according to claim 4, characterized in that, The filter seat has a first groove and a second groove on the outer wall of one end of the outer cup. The first groove is closer to the inner cup than the second groove. The sealing element is provided in both the first groove and the second groove, and the outer periphery of the sealing element abuts against the inner wall of the outer cup.

6. A hand-operated water purifier cup according to claim 5, characterized in that, The second groove has an air exchange notch on its side near the pre-filter.

7. A hand-operated water purifier cup according to claim 5, characterized in that, The pre-filter includes an outer filter cover and an inner filter cover. Both the outer filter cover and the inner filter cover have several water inlet holes. The inner filter cover is fastened inside the outer filter cover. A pre-filter element is provided between the outer filter cover and the inner filter cover. The outer wall of the outer filter cover can be snapped into the opening of the filter chamber. A sealing element is also provided between the outer wall of the outer filter cover and the opening of the filter chamber.

8. A hand-operated water purifier cup according to claim 7, characterized in that, The inner wall of the filter chamber opening is provided with a locking structure, and the outer wall of the outer filter cover is provided with a protruding ring that cooperates with the locking structure.

9. A hand-operated water purifier cup according to claim 7, characterized in that, The bottom outer periphery of the outer filter cover is provided with an abutting edge that abuts against the end face of the filter cavity opening.

10. A hand-operated water purifier cup according to claim 1, characterized in that, The cup lid is provided with a water outlet, and a buckle is provided on the outer side of the cup lid around the water outlet. A buckle cover is hinged to the buckle cover, and the buckle cover is provided with a relief groove to accommodate the swinging of the buckle cover. The buckle cover can be fastened to the buckle cover, and the buckle cover is provided with a sealing plug for sealing the water outlet.

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