Flat pressing type filter bottle structure and water purifier

Abstract

The utility model discloses a kind of flat pressure type filter bottle structure and water purifier.The flat pressure type filter bottle structure includes filter bottle piece, cover piece and locking piece, the filter bottle cover body of filter bottle piece can rotate around first axis, the edge of filter bottle cover body is equipped with first limiting structure, filter bottle cover body cover is equipped in the opening of the installation chamber of cover piece, locking piece is movably arranged on the open end of cover piece along first direction, locking piece includes second limiting structure, in first direction, locking piece can be moved to the retreat stop position of second limiting structure and first limiting structure cooperation to limit filter bottle cover body rotation around first axis, and can be moved to the avoidance position of second limiting structure and first limiting structure disengagement to allow filter bottle cover body rotation around first axis.The flat pressure type filter bottle structure is by setting locking piece on cover piece, not only can realize the retreat of filter bottle cover body, reduce the probability of filter bottle cover body back, improve the sealing effect at filter bottle cover body, and have visibility.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a flat-pressure filter bottle structure and a water purifier. Background Technology

[0002] Flat-pressure filter bottles typically refer to the transparent or white plastic bottles used in water purifiers to hold pre-filter cartridges such as PP cotton filters and granular activated carbon filters. Because of their high efficiency in replacing filter cartridges without the need for special tools, flat-pressure filter bottles are also widely known as "quick-connect filter bottles" or "tool-free filter bottles." Furthermore, the operation is simple, requiring no professional assistance; users can complete the replacement by hand by referring to the instruction manual. The replacement cost is also low. Therefore, flat-pressure filter bottles are increasingly widely used in water purifiers.

[0003] Existing flat-pressure filter bottles typically use a threaded connection between the filter bottle body and the filter bottle cap, with internal sealing achieved through radial or end-face sealing. However, due to the pressure and depressurization cycles in water purifier usage, the filter bottle cap can retract along the thread direction, leading to seal failure. Currently, a common solution is to add a protrusion at the mating point between the filter bottle body and the filter bottle cap, using an interference fit to prevent retraction when screwed to the protrusion. However, this protrusion interference fit not only makes tightening or loosening the filter bottle cap more difficult, but the protrusion is usually located on the mating surface of the filter bottle body and the filter bottle cap, which is typically not visible, making it impossible for users to determine whether the seal is in place. Utility Model Content

[0004] One objective of this invention is to provide a flat-pressure filter bottle structure that not only has a low risk of filter bottle cap retraction and good sealing effect, but also good visibility.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A flat-pressure filter bottle structure includes: a filter bottle component, the filter bottle component including a filter bottle cap body, the filter bottle cap body being rotatable about a first axis, and a first limiting structure provided at the edge of the filter bottle cap body; an outer cover component, the outer cover component having a mounting chamber for accommodating the filter bottle component, the mounting chamber forming an opening, the filter bottle cap body being disposed at the opening; and a locking member, the locking member being movably disposed on the open end of the outer cover component along a first direction, the locking member including a second limiting structure; wherein, in the first direction, the locking member is movable to a stop position where the second limiting structure cooperates with the first limiting structure to restrict the rotation of the filter bottle cap body about the first axis, and is movable to a clearance position where the second limiting structure disengages from the first limiting structure to allow the filter bottle cap body to rotate about the first axis.

[0007] Preferably, the first limiting structure is a slot extending along the rotation direction of the filter bottle cap; the second limiting structure includes a locking protrusion, which engages with the slot when in the stop position, and disengages from the slot when in the avoidance position.

[0008] Preferably, the second limiting structure further includes a locking seat, the locking protrusion including a cantilever portion and a locking protrusion connected to each other, the locking protrusion abutting against the upper wall of the slot, and the end of the cantilever portion away from the locking protrusion being fixed to the locking seat.

[0009] Preferably, the second limiting structure further includes a snap-fit ​​seat, the snap-fit ​​protrusion is mounted on the snap-fit ​​seat, and the snap-fit ​​seat is slidably connected to the outer cover along the first direction.

[0010] Preferably, the outer cover includes a top ring edge that surrounds and forms the opening, and the top ring edge has a mounting port, into which the snap-fit ​​seat is slidably placed.

[0011] Preferably, one of the inner wall of the mounting port and the outer wall of the snap-fit ​​seat is provided with a groove along the first direction, and the other is provided with a sliding shaft protruding along the second direction, the sliding shaft being slidably disposed in the groove.

[0012] Preferably, the groove includes an open section and a sliding section that are interconnected, and the sliding shaft enters the sliding section through the open section; the opening width of the open section in a third direction is smaller than the width of the sliding section in the third direction, and a limiting surface is formed at the connection between the open section and the sliding section, the limiting surface being used to limit the sliding shaft within the sliding section; and / or, the opening width of the open section gradually decreases in the first direction, and the opening width at one end of the open section that is connected to the sliding section is smaller than the opening width at the other end of the open section.

[0013] Preferably, a sliding groove is provided on each of the two inner sidewalls of the mounting port, and a sliding shaft is provided on each of the two outer sidewalls of the snap-fit ​​seat, with the two sliding shafts slidingly disposed in the two sliding grooves in a one-to-one correspondence.

[0014] Preferably, the snap-fit ​​seat has a push-pull plate portion on the side opposite to the filter bottle cap body in the first direction, and the top surface of the push-pull plate portion protrudes from the top surface of the top ring edge in the third direction.

[0015] Another objective of this invention is to provide a water purifier whose flat-pressure filter bottle structure has a low risk of filter bottle cap retraction and a good sealing effect.

[0016] To achieve this objective, the present invention adopts the following technical solution:

[0017] A water purifier includes a main unit and the aforementioned flat-pressure filter bottle structure, wherein the flat-pressure filter bottle structure is detachably mounted on the main unit.

[0018] The beneficial effects of this utility model are:

[0019] The flat-pressure filter bottle structure provided by this utility model includes a filter bottle component, an outer cover component, and a locking component. The filter bottle cap of the filter bottle component is rotatable around a first axis. A first limiting structure is provided at the edge of the filter bottle cap. The outer cover component has an installation chamber for accommodating the filter bottle component. The filter bottle cap is placed over the opening of the installation chamber. The locking component is movably disposed on the opening end of the outer cover component along a first direction. The locking component includes a second limiting structure. In the first direction, the locking component can move to a stop position where the second limiting structure cooperates with the first limiting structure to restrict the rotation of the filter bottle cap around the first axis, and can also move to a clearance position where the second limiting structure disengages from the first limiting structure to allow the filter bottle cap to rotate around the first axis. This flat-pressure filter bottle structure, by providing a locking component on the outer cover component, can prevent the filter bottle cap from retracting, reduce the probability of the filter bottle cap retraction, and improve the sealing effect at the filter bottle cap. In addition, the locking element is located on the outside of the filter bottle cap, which is highly visible and allows users to easily determine whether the second limiting structure and the first limiting structure are properly engaged. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the flat-pressure filter bottle structure described in an embodiment of the present invention;

[0021] Figure 2 This is an exploded view of the flat-pressure filter bottle structure described in this embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the assembled outer cover and locking components according to an embodiment of the present utility model;

[0023] Figure 4 This is an exploded view of the outer cover and locking components assembled according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the filter bottle cap body according to an embodiment of the present utility model;

[0025] Figure 6 This is a partial schematic diagram of the opening end of the outer cover component described in this embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the locking component described in an embodiment of the present utility model;

[0027] Figure 8This is a schematic diagram of the locking member described in an embodiment of the present invention from another perspective.

[0028] In the picture:

[0029] 100. Filter bottle cap body; 110. Slot; 120. Reinforcing rib section; 130. Toothed structure;

[0030] 200. Outer cover; 210. Mounting chamber; 220. Top circumference; 230. Mounting opening; 240. Slide groove; 241. Opening section; 242. Sliding section; 250. Support structure; 251. Supporting horizontal plate; 252. Supporting vertical plate;

[0031] 300, Locking element; 310, Snap-fit ​​protrusion; 311, Cantilever part; 312, Snap-fit ​​protrusion; 320, Sliding shaft; 330, Snap-fit ​​seat; 340, Push-pull plate part. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 utility model according to the specific circumstances.

[0034] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 2 As shown, this utility model provides a flat-pressure filter bottle structure for use in water purifiers to facilitate filter bottle replacement. Specifically, the flat-pressure filter bottle structure includes a filter bottle, an outer cover 200, and a locking member 300. The filter bottle includes a filter bottle cover 100 and a filter bottle body (not shown in the figure). An installation space for installing a filter element is formed inside the filter bottle body. The filter bottle cover 100 is used to close the opening of the installation space. The filter bottle cover 100 of the filter bottle is rotatable around a first axis, such as... Figure 1 As shown in m, a first limiting structure is provided at the edge of the filter bottle cap 100. Optionally, the filter bottle cap 100 and the filter bottle body are detachably connected by a threaded connection. The outer cover 200 is used to install and protect the filter bottle assembly. The outer cover 200 is provided with a mounting chamber 210 for accommodating the filter bottle assembly, and the filter bottle cap 100 covers the opening of the mounting chamber 210. A locking member 300 is movably provided on the opening end of the outer cover 200 along a first direction, such as... Figure 1 As shown in a, the locking member 300 includes a second limiting structure. In a first direction, the locking member 300 is movable to a stop position where the second limiting structure engages with the first limiting structure to restrict the rotation of the filter cap 100 about the first axis, and to a clearance position where the second limiting structure disengages from the first limiting structure to allow the filter cap 100 to rotate about the first axis.

[0037] When assembling the filter bottle assembly, first move the locking member 300 to the clearance position along the first direction so that the locking member 300 does not affect the movement and rotation of the filter bottle cap 100. This allows the filter bottle cap 100 to move smoothly to the opening end of the outer cover 200, and the first limiting structure to rotate smoothly to the position directly opposite the locking member 300. After the filter bottle cap 100 has moved into place, apply force to the locking member 300 so that it moves along the first direction to the stop position. At this time, the second limiting structure of the locking member 300 cooperates with the first limiting structure to limit the movement. The existence of this cooperation restricts the rotation of the filter bottle cap 100 around the first axis. If the water purifier is used in a pressurized and depressurized cycle in the later stages, the filter bottle cap 100 will not retract under the limiting position of the locking member 300, thus ensuring the continuous effectiveness of the sealing effect at the filter bottle cap 100 of the filter bottle assembly. When the filter bottle needs to be opened, such as when the filter element needs to be replaced, the locking member 300 is moved back to the avoidance position. Once moved to the avoidance position, the locking member 300 will no longer restrict the filter bottle cap 100, and the filter bottle cap 100 can be separated from the filter bottle body by screwing on it. In summary, this flat-pressure filter bottle structure, through the locking member 300 located on the outer cover 200, not only prevents the filter bottle cap 100 from retracting, reducing the probability of the filter bottle cap 100 retracting and improving the sealing effect at the filter bottle cap 100, but also does not affect the normal opening and closing of the filter bottle cap 100. Furthermore, since the locking member 300 is located on the outside of the filter bottle cap 100, it is easily visible, allowing the user to easily determine whether the second limiting structure and the first limiting structure are properly engaged.

[0038] like Figure 3 and Figure 4 As shown, the outer cover 200 includes a top ring edge 220 that forms an opening. The filter bottle cap 100 is fastened to the top ring edge 220, and a locking member 300 is installed at the top ring edge 220. The filter bottle body is installed within the mounting chamber 210 of the outer cover 200. In some embodiments, the mounting chamber 210 is cylindrical to accommodate a generally cylindrical filter bottle body.

[0039] To improve the structural strength of the filter bottle cap 100, a reinforcing structure is provided on the outer wall surface of the filter bottle cap 100. Optionally, such as... Figure 5 As shown, the reinforcing structure includes multiple reinforcing ribs 120, which are spaced apart circumferentially along the filter bottle cap body 100 to improve the structural strength. In other embodiments, the reinforcing structure can also be a reinforcing ring, which surrounds the filter bottle cap body 100 circumferentially, and the number of reinforcing rings can be multiple as needed.

[0040] To facilitate screwing the filter bottle cap 100 around the first axis, continue referring to... Figure 5 As shown, the filter bottle cap 100 is provided with a toothed structure 130. By placing the water purifier universal wrench on the toothed structure 130, it is easier to tighten or loosen the filter bottle cap 100.

[0041] like Figure 6 and Figure 7 As shown, in some embodiments, the first limiting structure is a slot 110 extending along the rotation direction of the filter bottle cap 100; the second limiting structure includes a snap-fit ​​protrusion 310, which engages with the slot 110 when in a stop position and disengages from the slot 110 when in a clearance position. Of course, in other embodiments, the first limiting structure can be a snap-fit ​​protrusion 310 and the second limiting structure can be a slot 110. Furthermore, other structures can be used as the first and second limiting structures; for example, the first limiting structure can be a limiting hole and the second limiting structure can be a limiting post.

[0042] Continue to refer to Figure 7 As shown, the second limiting structure also includes a snap-fit ​​seat 330, on which a snap-fit ​​protrusion 310 is mounted. The snap-fit ​​seat 330 is slidably connected to the outer cover 200 along the first direction. It should be noted that the snap-fit ​​protrusion 310 and the snap-fit ​​seat 330 can be an integrally formed mechanism, or they can be two independent structures assembled together.

[0043] Optionally, the locking protrusion 310 includes a cantilever portion 311 and a locking protrusion 312 connected to each other. The locking protrusion 312 abuts against the upper wall of the locking groove 110, and the end of the cantilever portion 311 away from the locking protrusion 312 is fixed to the locking seat 330. The second limiting structure, by setting the cantilever portion 311, makes the locking protrusion 312 have the elasticity to move up and down. This elasticity can meet the requirements of the threaded screwing of the filter bottle cap 100 and the filter bottle body. The filter bottle cap 100 gradually approaches the locking member 300 by screwing. When the filter bottle cap 100 rotates to the position of contacting the locking protrusion 312, the locking protrusion 312 can deflect downward because the cantilever portion 311 can deform elastically, so as to prevent excessive interference and failure to screw in. After the filter bottle cap 100 is screwed into the fixed position, the cantilever portion 311 can spring back, thereby completing the locking action. In some embodiments, refer to... Figure 5 As shown, the card slot 110 is an inverted U-shaped slot with an opening at the bottom.

[0044] To mount the locking member 300 on the top ring edge 220, a mounting opening 230 is provided on the top ring edge 220, and the locking seat 330 is slidably placed within the mounting opening 230. To improve the movement accuracy of the locking member 300 in the first direction, a groove 240 is formed on the inner side wall of the mounting opening 230 along the first direction, and a sliding shaft 320 is protruding on the outer side wall of the locking seat 330 along the second direction. The sliding shaft 320 is slidably disposed within the groove 240, and the second direction is as follows: Figure 7 As shown in direction b, the first direction is perpendicular to the second direction. Of course, in other embodiments, the sliding shaft 320 can also be disposed on the inner side wall of the mounting port 230, and the sliding groove 240 can be disposed on the outer side wall of the snap-fit ​​seat 330.

[0045] like Figure 8 As shown, a sliding groove 240 is provided on each of the two inner side walls of the mounting port 230, and a sliding shaft 320 is provided on each of the two outer side walls of the snap-fit ​​seat 330. The two sliding shafts 320 are slidably disposed in the two sliding grooves 240 in a one-to-one correspondence. This arrangement helps to improve the stability of the snap-fit ​​seat 330 moving in the first direction.

[0046] Continue to refer to Figure 6 As shown, the slide 240 includes an open section 241 and a sliding section 242 that are interconnected. The sliding shaft 320 enters the sliding section 242 through the open section 241. When the locking member 300 switches between the stop position and the avoidance position, the sliding shaft 320 reciprocates within the sliding section 242.

[0047] To confine the sliding shaft 320 within the sliding segment 242, the opening width of the opening segment 241 in the third direction is smaller than the width of the sliding segment 242 in the third direction. This creates a limiting surface at the connection between the opening segment 241 and the sliding segment 242, thereby achieving a certain degree of limitation on the sliding shaft 320. For example, in the third direction... Figure 6 As shown in direction c, the first, second, and third directions are arranged perpendicularly to each other. It should be noted that the limiting here refers to limiting under a certain external force. If the external force applied to the locking member 300 exceeds a certain value, the sliding shaft 320 can be disengaged from the sliding section 242 through the limiting surface. In a specific embodiment, the width of the sliding section 242 in the third direction is greater than the outer diameter of the sliding shaft 320, and the minimum opening width of the opening section 241 in the third direction is slightly less than or approximately equal to the outer diameter of the sliding shaft 320. The sliding shaft 320 enters the sliding section 242 through the opening section 241 by compression.

[0048] Furthermore, the opening width of the opening segment 241 gradually decreases in the first direction, and the opening width of the end of the opening segment 241 that connects to the sliding segment 242 is smaller than the opening width of the other end of the opening segment 241. This arrangement makes the inner wall surface of the opening segment 241 inclined, so as to guide the movement of the sliding shaft 320 within the opening segment 241.

[0049] To facilitate the pushing and pulling of the second limiting structure, continue to refer to... Figure 7 As shown, the latching seat 330 has a push-pull plate portion 340 on the side opposite to the filter bottle cap body 100 in the first direction. The top surface of the push-pull plate portion 340 protrudes from the top surface of the top ring edge 220 in the third direction. The user can push and pull the latching seat 330 by pinching the push-pull plate portion 340, thereby switching the second limiting structure between the stop position and the avoidance position.

[0050] Continue to refer to Figure 6 As shown, due to the small thickness of the outer cover 200, a support structure 250 is provided at the mounting opening 230 of the outer cover 200 to support the locking member 300. The support structure 250 is used to support the locking member 300. Optionally, the support structure 250 includes a support horizontal plate 251 and a support vertical plate 252. The support horizontal plate 251 is located inside the mounting opening 230, and the support vertical plate 252 is supported on the bottom of the support horizontal plate 251. Further, two support vertical plates 252 are provided, and the two support vertical plates 252 are connected to the two ends of the support horizontal plate 251.

[0051] This utility model also discloses a water purifier, which includes a main unit and the aforementioned flat-pressure filter bottle structure, the flat-pressure filter bottle structure being detachably installed on the main unit. The flat-pressure filter bottle structure of this water purifier has a low risk of filter bottle cap retraction and good sealing performance. It should be noted that the structure of the main unit of the water purifier is prior art and will not be described in detail here.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flat-pressure filter bottle structure, characterized in that, include: A filter bottle assembly, the filter bottle assembly including a filter bottle cap body (100), the filter bottle cap body (100) being rotatable about a first axis, and a first limiting structure being provided at the edge of the filter bottle cap body (100); An outer cover (200) is provided with an installation chamber (210) for accommodating the filter bottle, and the installation chamber (210) has an opening, on which the filter bottle cap (100) is placed; A locking member (300) is movably disposed on the opening end of the outer cover (200) along a first direction, and the locking member (300) includes a second limiting structure; In the first direction, the locking member (300) can be moved to a stop position where the second limiting structure cooperates with the first limiting structure to restrict the rotation of the filter bottle cap (100) around the first axis, and can be moved to a clearance position where the second limiting structure disengages from the first limiting structure to allow the filter bottle cap (100) to rotate around the first axis.

2. The flat-pressure filter bottle structure according to claim 1, characterized in that, The first limiting structure is a slot (110) extending along the rotation direction of the filter bottle cap (100). The second limiting structure includes a snap-fit ​​protrusion (310), which snaps into the slot (110) when in the stop position, and disengages from the slot (110) when in the avoidance position.

3. The flat-pressure filter bottle structure according to claim 2, characterized in that, The second limiting structure also includes a locking seat (330), the locking protrusion (310) includes a cantilever portion (311) and a locking protrusion (312) connected to each other, the locking protrusion (312) is limited and abutted against the upper wall of the locking groove (110), and one end of the cantilever portion (311) away from the locking protrusion (312) is fixed on the locking seat (330).

4. The flat-pressure filter bottle structure according to claim 2, characterized in that, The second limiting structure also includes a snap-fit ​​seat (330), the snap-fit ​​protrusion (310) is mounted on the snap-fit ​​seat (330), and the snap-fit ​​seat (330) is slidably connected to the outer cover (200) along the first direction.

5. The flat-pressure filter bottle structure according to claim 4, characterized in that, The outer cover (200) includes a top ring edge (220) which surrounds and forms the opening. The top ring edge (220) is provided with a mounting port (230), and the snap-fit ​​seat (330) is slidably placed in the mounting port (230).

6. The flat-pressure filter bottle structure according to claim 5, characterized in that, The inner wall of the mounting port (230) and the outer wall of the snap-fit ​​seat (330) are provided with a groove (240) along the first direction, and the other is provided with a sliding shaft (320) along the second direction. The sliding shaft (320) is slidably disposed in the groove (240).

7. The flat-pressure filter bottle structure according to claim 6, characterized in that, The groove (240) includes an open section (241) and a sliding section (242) that are interconnected, and the sliding shaft (320) enters the sliding section (242) through the open section (241); The opening width of the opening segment (241) in the third direction is smaller than the width of the sliding segment (242) in the third direction. A limiting surface is formed at the connection between the opening segment (241) and the sliding segment (242). The limiting surface is used to limit the sliding shaft (320) within the sliding segment (242). And / or, the opening width of the opening segment (241) gradually decreases in the first direction, and the opening width of the end of the opening segment (241) that communicates with the sliding segment (242) is smaller than the opening width of the other end of the opening segment (241).

8. The flat-pressure filter bottle structure according to claim 6, characterized in that, The mounting port (230) has a sliding groove (240) on each of its two inner sidewalls, and the snap-fit ​​seat (330) has a sliding shaft (320) on each of its two outer sidewalls. The two sliding shafts (320) are slidably disposed in the two sliding grooves (240) in a one-to-one correspondence.

9. The flat-pressure filter bottle structure according to claim 5, characterized in that, The snap-fit ​​seat (330) has a push-pull plate portion (340) on the side opposite to the filter bottle cap body (100) in the first direction, and the top surface of the push-pull plate portion (340) protrudes from the top surface of the top ring edge (220) in the third direction.

10. A water purifier, characterized in that, The system includes a main unit and a flat-pressure filter bottle structure as described in any one of claims 1-9, wherein the flat-pressure filter bottle structure is detachably mounted on the main unit.

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