A filter bottle structure capable of being disassembled and assembled manually

Abstract

The application discloses a filter bottle structure which can be disassembled and assembled manually, and relates to the technical field of water purification equipment. The filter bottle structure comprises a filter bottle shell, a filter bottle conversion core for filtering sundries is arranged in the filter bottle shell, a filter core head for receiving external liquid is arranged at the top of the filter bottle conversion core, a filter core upper end cover is arranged around the filter core head at the top of the filter bottle conversion core, a filter bottle top cover is threadedly connected to the top of the filter core upper end cover, the inner surface of the filter bottle top cover is movably connected with the filter bottle conversion core, a plurality of friction rubber rings are arranged on the surface of the filter bottle conversion core and the connecting surface of the filter bottle top cover, a filter bottle lock catch is arranged on the side surface of the filter bottle top cover and close to the filter bottle shell, a docking shell for receiving external liquid is arranged at the top of the filter bottle top cover, and a stabilizing gasket for preventing the filter bottle top cover from being loosened is arranged between the filter bottle top cover and the docking shell. The filter bottle can be replaced easily without the aid of tools, the operation is simple, and the water leakage risk caused by the wear of the filter bottle interface is reduced.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, and in particular to a filter bottle structure that can be manually unscrewed and disassembled. Background Technology

[0002] As people pursue a higher quality of life, household water safety is receiving increasing attention. Water filter bottles, as an economical and affordable water purification device, are gradually gaining popularity among households. Filter bottles can act as pre-filters for household water, protecting downstream water-using appliances such as water heaters, washing machines, and shower equipment. They can also be used with different filter cartridges to achieve different filtration effects, such as coarse filtration and removal of residual chlorine. However, traditional water filter bottles typically require tools (such as wrenches) to unscrew the bottle when replacing filter cartridges or cleaning, which is cumbersome and time-consuming. This is especially true in space-constrained environments (such as water purifiers installed inside cabinets), where tool use is inconvenient and increases maintenance difficulty. Furthermore, frequent tool use can cause wear and tear on the filter bottle's interfaces, leading to a risk of leakage. Utility Model Content

[0003] To address the issues of cumbersome operation requiring tools for replacement and cleaning of traditional filter bottles, and the risk of leakage due to wear and tear on the filter bottle interfaces caused by frequent tool use, this application provides a filter bottle structure that can be manually unscrewed and disassembled.

[0004] The filter bottle structure that can be manually twisted and disassembled provides the following technical solution:

[0005] A filter bottle structure that can be manually twisted and disassembled includes a filter bottle shell, a filter bottle conversion core for filtering impurities is provided inside the filter bottle shell, a filter element head for receiving external liquid is provided on the top of the filter bottle conversion core, and a filter element upper end cap for connecting to the inner wall of the filter bottle shell is provided around the filter element head on the top of the filter bottle conversion core.

[0006] The filter element's upper end cap is threadedly connected to a filter bottle top cap for connecting to the outer surface of the filter bottle housing. The inner surface of the filter bottle top cap is movably inserted into the filter bottle conversion core. The surface of the filter bottle conversion core is provided with multiple friction rubber rings on the connection surface with the filter bottle top cap. The side surface of the filter bottle top cap is provided with a filter bottle latch for connecting the filter bottle housing and the filter bottle top cap near the filter bottle housing. The top of the filter bottle top cap is provided with a docking housing for receiving external liquid. A stabilizing gasket is provided between the filter bottle top cap and the docking housing to prevent the filter bottle top cap from loosening.

[0007] By adopting the above technical solution, the filter bottle top cover and the filter bottle outer shell are connected as a whole by the filter bottle locking buckle, eliminating the need for the filter bottle locking buckle connection. The filter bottle outer shell can be rotated to engage with the filter bottle top cover, making the operation simple. At the same time, the filter bottle conversion core is inserted into the filter bottle top cover as a whole. Furthermore, the friction rubber ring at the connection between the filter bottle top cover and the filter bottle conversion core maintains the seal while increasing the friction between the filter bottle top cover and the filter bottle conversion core, preventing wear of the filter bottle conversion core due to excessive force during disassembly.

[0008] Preferably, the top cover of the filter bottle has an inner insertion port in the middle at the position of the filter element head, which communicates with the docking housing. The top of the filter element head passes through the upper end cover of the filter element and connects to the inner wall of the inner insertion port. The through-hole of the upper end cover of the filter element is connected to the outer wall of the inner insertion port.

[0009] By adopting the above technical solution, the inner insertion port is connected to the filter element head to form a connection between the filter bottle top cover and the filter bottle conversion core. At the same time, the inner insertion port is movably inserted between the filter element head and the through-hole of the filter element top cover to form a seal while keeping the filter bottle top cover and the filter bottle conversion core in a movable connection state.

[0010] Preferably, the top inner surface of the filter bottle top cover is provided with a middle annular groove around the inner insertion port, which is inserted into the through port of the upper end cover of the filter element, and the top inner surface of the filter bottle top cover is provided with an outer annular groove around the middle annular groove, which is inserted into the side surface of the upper end cover of the filter element.

[0011] By adopting the above technical solution, the opening of the middle ring groove provides a longitudinal insertion space for the filter element upper end cover through opening, and the opening of the outer ring groove provides an overall longitudinal insertion space for the filter element upper end cover, so that the filter element upper end cover is completely inserted into the range of the filter bottle top cover to form a closed space. At the same time, the groove inner wall clamps and limits the insertion surface of the filter element upper end cover, which helps to improve the sealing effect.

[0012] Preferably, friction rubber rings are fixedly provided on the outer surface of the filter element head, the insertion surface of the filter element upper end cover and the outer ring groove, and the insertion surface of the filter element upper end cover through hole and the middle ring groove.

[0013] By adopting the above technical solution, friction rubber rings are respectively set on the outer surface of the filter element head, the insertion surface of the filter element upper cover and the outer ring groove, and the insertion surface of the filter element upper cover through hole and the middle ring groove, thereby improving the connection stability between the filter bottle top cover and the filter element upper cover, and helping to improve the sealing effect.

[0014] Preferably, the top of the filter bottle top cover is provided with a top cover connector that communicates with the inner insertion port, and the side surface of the top cover connector is provided with a fixing pin for fixing the stabilizing pad.

[0015] By adopting the above technical solution, the top cover connector connects the inner insertion port and the filter head, thereby forming a liquid flow path. At the same time, the protruding setting of the fixing pin forms a lateral limit on the top of the stabilizing gasket, preventing the stabilizing gasket from loosening.

[0016] Preferably, the outer surface of the filter bottle housing is provided with a limiting protrusion ring that abuts against the bottom of the filter bottle top cover, and a fixing keyhole is provided on one side of the outer surface of the limiting protrusion ring for engaging and fixing with the filter bottle lock.

[0017] By adopting the above technical solution, the upper end face of the limiting protrusion abuts against the bottom of the filter bottle top cover, thereby limiting the bottom of the filter bottle top cover when it is threadedly connected to the filter bottle outer shell, preventing the filter bottle top cover from being excessively rotated in and causing damage to the filter bottle conversion core.

[0018] Preferably, the top of the docking housing is provided with multiple docking ports for connecting to an external liquid inlet device, and the docking housing is provided with through holes communicating with the top cover connector at the positions of the multiple docking ports.

[0019] By adopting the above technical solution, the through hole opened inside the interface is connected to the other interface, so that the external liquid is input into the filter bottle conversion element through the other interface.

[0020] Preferably, both sides of the docking housing have through-connection ports, and both sides of the through-connection ports are connected to the docking housing of the adjacent filter structure to form a multi-tube filter.

[0021] By adopting the above technical solution, the connection ports are opened on both sides of the docking shell to connect multiple filter structures, thereby improving the filtration efficiency of impurities in the liquid.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The filter bottle housing and top cover are connected by threads, and the filter bottle lock is designed with a secondary snap-fit ​​mechanism. This design keeps the filter bottle housing fixed and easy to disassemble. Friction rings are fixed on multiple connection surfaces between the filter bottle conversion element and the top cover. These internal small-ring friction structures facilitate the disassembly of the filter bottle conversion element. This allows for easy hand-tightening replacement of the entire filter bottle structure. The auxiliary friction provided by the friction rings effectively prevents damage to the filter bottle conversion element caused by excessive force during disassembly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the present application;

[0025] Figure 2 This is an exploded view of the structure of this application;

[0026] Figure 3 This is a schematic diagram showing the connection between the filter bottle top cover and the docking housing in this application;

[0027] Figure 4 This is a schematic internal cross-sectional view of the present application;

[0028] Figure 5 This is an enlarged view of section A in this application.

[0029] Reference numerals in the attached diagram: 1. Filter bottle outer shell; 2. Filter bottle top cover; 3. Connecting shell; 4. Filter bottle conversion core; 5. Filter bottle lock; 6. Limiting protrusion ring; 7. Stabilizing gasket; 8. Connection port; 9. Connecting interface;

[0030] 10. Filter element top cover; 11. Top cover connector; 12. Fixing pin; 13. Filter element head; 14. Friction ring; 15. Fixing keyhole; 16. Inner insertion port; 17. Middle ring groove; 18. Outer ring groove. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0032] This application discloses a filter bottle structure that can be manually unscrewed and disassembled.

[0033] Reference Figure 1 , Figure 2 , Figure 3 A filter bottle structure that can be manually screwed and disassembled includes a filter bottle shell 1. A limiting protrusion ring 6 is fixedly arranged around the top end of the outer surface of the filter bottle shell 1, and a thread is provided on the outer surface of the filter bottle shell 1 at the top of the limiting protrusion ring 6. A filter bottle top cover 2 is connected to the threaded surface of the filter bottle shell 1. The filter bottle top cover 2 is concave in shape, and the inner wall of the concave part of the filter bottle top cover 2 is provided with a threaded groove that engages with the threaded surface of the filter bottle shell 1, so that the filter bottle top cover 2 and the filter bottle shell 1 are in a threaded connection state (the thread type is set to NPT thread, the tooth angle is 60°, the taper is 1:16, and a sealing state is formed when the threaded connection is made to prevent the liquid inside the cavity of the filter bottle shell 1 from leaking out).

[0034] Meanwhile, a fixing eye 15 is provided at one end of the surface of the limiting protrusion ring 6, and a filter bottle buckle 5 is installed on the outer surface of the filter bottle top cover 2 at the position of the fixing eye 15. The filter bottle buckle 5 can move up and down and slide, and when the filter bottle buckle 5 slides to the position of the fixing eye 15, it can form a snap-fit ​​fixation, so that the filter bottle shell 1 and the filter bottle top cover 2 are fixed as a whole.

[0035] The top of the filter bottle top cover 2 is fixedly provided with a top cover connector 11. A docking housing 3 is inserted into the top of the top cover connector 11. Multiple docking ports 9 are fixedly provided on the upper end face of the docking housing 3. The multiple docking ports 9 are all connected to an external liquid input device through pipes. The bottom of the multiple docking ports 9 passes through the docking housing 3 and is sealed to the top cover connector 11, thereby transporting liquid from the outside to the area of ​​the filter bottle top cover 2. At the same time, a stabilizing gasket 7 is placed around the top cover connector 11 on the upper end face of the filter bottle top cover 2. The upper end face of the docking housing 3 is threadedly fixed to the stabilizing gasket 7 through the screw. Fixed pins 12 are fixedly provided on both sides of the top of the stabilizing gasket 7 on the outer surface of the top cover connector 11.

[0036] Under normal conditions, the bottom of the fixing pin 12 abuts against the upper surface of the stabilizing pad 7, and the upper surface of the stabilizing pad 7 is provided with a notch and a protrusion that engages with the fixing pin 12 (e.g., Figure 3 As shown, rotating the stabilizing pad 7 adjusts the alignment of the fixing pin 12 with the notch and protrusion, thereby controlling the connection state between the filter bottle top cover 2 and the docking housing 3. That is, when the fixing pin 12 is aligned with the protrusion of the stabilizing pad 7, it is in a snap-fit ​​state, and when the fixing pin 12 is aligned with the notch of the stabilizing pad 7, it is in a detachable state.

[0037] It should be noted that connection ports 8 are provided on both sides of the docking housing 3. The connection ports 8 are connected to multiple docking housings 3, filter bottle top covers 2 that dock with the docking housing 3, and filter bottle shells 1 through flexible hoses, so as to synchronously deliver external liquid to multiple filter bottle structures, improve filtration efficiency, and as the number of filter bottle structures increases, the total amount of liquid input by the external liquid input device is adjusted synchronously, and the input liquid is always kept within the capacity range of the filter bottle shell 1, preventing liquid overflow when the filter bottle shell 1 is disassembled.

[0038] Reference Figure 2 , Figure 4 , Figure 5 The bottom end face of the recess of the filter bottle top cover 2 is fixed with an inner insertion port 16 that connects to the top cover connector 11. A middle ring groove 17 is provided protruding around the inner insertion port 16 on the bottom end face of the filter bottle top cover 2. An outer ring groove 18 is provided around the middle ring groove 17 on the bottom end face of the filter bottle top cover 2. A filter element upper cover 10 is inserted into the groove of the outer ring groove 18. A through hole is opened in the middle of the filter element upper cover 10. The protruding part of the through hole is inserted into the middle ring groove 17 and abuts against the inner surface of the middle ring groove 17 and the outer surface of the inner insertion port 16. When the through hole of the filter element upper cover 10 is inserted into the middle ring groove 17, the outer surface of the filter element upper cover 10 is inserted into the outer ring groove 18 to form an abutment state, thus forming an integral connection between the filter element upper cover 10 and the filter bottle top cover 2.

[0039] A filter bottle conversion core 4 is inserted into the filter bottle housing 1. The filter bottle conversion core 4 is located entirely within the housing of the filter bottle housing 1. Under normal conditions, the filter bottle housing 1 is connected to the filter bottle top cover 2 to form an overall enclosure of the filter bottle conversion core 4. The bottom of the cavity of the filter bottle housing 1 applies an upward lifting force to the bottom of the filter bottle conversion core 4. The outer surface of the top of the filter bottle conversion core 4 is fixedly connected to the inner surface of the lower end of the filter element upper cover 10. A filter element head 13 is provided on the top of the filter bottle conversion core 4 through the upper opening of the filter bottle housing 1. The filter element head 13 communicates with the internal cavity of the filter bottle conversion core 4. The top of the filter element head 13 extends upward from the through opening of the filter element upper cover 10 and is inserted into the part of the inner insertion port 16 located inside the through opening of the filter element upper cover 10 to form abutment. The filter element head 13 receives the liquid input from the filter bottle top cover 2 and delivers it to the filter bottle conversion core 4 for filtration.

[0040] It should be noted that friction rings 14 are fixedly provided on the contact surfaces of the filter element upper end cover 10 and the inner wall of the outer ring groove 18, the contact surfaces of the filter element upper end cover 10 through opening and the inner wall of the middle ring groove 17, and the contact surfaces of the filter element head 13 and the inner wall of the inner insertion port 16. (The friction rings 14 are made of nitrile rubber to ensure sufficient elasticity and durability during long-term use.) The friction rings 14 are used to improve the connection sealing while receiving rotational force to rotate and rub along the contact surface.

[0041] The implementation principle of a manually detachable filter bottle structure in this application embodiment is as follows: the docking housing 3 is connected to the external liquid input device through a pipe to form a sealed docking. Then, as the device is running, the liquid is sequentially input from the docking interface 9 to the top cover connector 11, the inner insertion port 16 and the filter element head 13, and finally enters the filter bottle conversion core 4. The liquid enters the filter bottle conversion core 4 and permeates into the cavity of the filter bottle outer shell 1, thereby trapping impurities in the liquid in the filter bottle conversion core 4 and forming a filtration effect.

[0042] When the filter bottle conversion element 4 completes the filtration process or needs to be replaced, the personnel push the filter bottle lock 5 from bottom to top to disengage the filter bottle lock 5 from the fixed lock eye 15. Then, rotate the filter bottle outer shell 1 to make it fall off from the bottom of the filter bottle top cover 2, thereby receiving the filtered liquid. As the filter bottle outer shell 1 is disengaged, the supporting force on the bottom of the filter bottle conversion element 4 is released. At this time, the filter bottle conversion element 4 is pulled out downwards, with a slight rotation during the pulling process.

[0043] As the filter bottle conversion element 4 is pulled downward, the friction ring 14 provides friction on multiple connecting surfaces between the upper end cover 10 of the filter element and the top cover 2 of the filter bottle, keeping the filter bottle conversion element 4 in a slow pull-out state. This prevents wear and debris from falling out caused by the rapid pull-out of the filter bottle conversion element 4 under tension. This allows for manual removal of the filter bottle conversion element 4, simplifying the operation and preventing wear caused by excessive force when replacing the filter bottle conversion element 4.

[0044] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A filter bottle structure which can be hand-screwed on and off, characterized by: Includes a filter bottle housing (1), inside which is a filter bottle conversion core (4) for filtering impurities, and on the top of the filter bottle conversion core (4) is a filter head (13) for receiving external liquid, and on the top of the filter bottle conversion core (4) is a filter upper end cap (10) for connecting with the inner wall of the filter bottle housing (1) around the filter head (13); The top of the filter element cap (10) is threadedly connected to a filter bottle top cap (2) for connecting the outer surface of the filter bottle shell (1). The inner surface of the filter bottle top cap (2) is movably inserted into the filter bottle conversion core (4). The surface of the filter bottle conversion core (4) is provided with multiple friction rubber rings (14) on the connection surface with the filter bottle top cap (2). The side surface of the filter bottle top cap (2) is provided with a filter bottle latch (5) for connecting the filter bottle shell (1) and the filter bottle top cap (2) near the filter bottle shell (1). The top of the filter bottle top cap (2) is provided with a docking housing (3) for receiving external liquid. A stabilizing gasket (7) is provided between the filter bottle top cap (2) and the docking housing (3) to prevent the filter bottle top cap (2) from loosening.

2. A filter bottle structure according to claim 1, wherein: The filter bottle top cover (2) has an inner insertion port (16) in the middle of the filter element head (13) that communicates with the docking housing (3). The top of the filter element head (13) passes through the filter element upper end cover (10) and connects to the inner wall of the inner insertion port (16). The through opening of the filter element upper end cover (10) is connected to the outer wall of the inner insertion port (16).

3. A filter bottle structure according to claim 2, wherein: The top inner surface of the filter bottle top cover (2) is fixed with an inner insertion port (16) and a middle ring groove (17) is fixed around the inner insertion port (16) to be inserted into the through port of the filter element upper end cover (10). The top inner surface of the filter bottle top cover (2) is fixed with an outer ring groove (18) around the middle ring groove (17) to be inserted into the side surface of the filter element upper end cover (10).

4. A filter bottle structure according to claim 3, wherein: Multiple friction rubber rings (14) are respectively fixed on the outer surface of the filter head (13), the insertion surface of the filter upper end cover (10) and the outer ring groove (18), and the insertion surface of the filter upper end cover (10) and the middle ring groove (17).

5. A filter bottle structure according to claim 4, wherein: The top of the filter bottle cap (2) is provided with a cap connector (11) that communicates with the inner insertion port (16), and a fixing pin (12) for fixing the stabilizing pad (7) is provided on the side surface of the cap connector (11).

6. The filter bottle structure that can be manually unscrewed and disassembled according to claim 1, characterized in that: The outer surface of the filter bottle shell (1) is surrounded by a limiting protrusion (6) that abuts against the bottom of the filter bottle top cover (2). A fixing eye (15) is provided on one side of the outer surface of the limiting protrusion (6) to be engaged and fixed with the filter bottle latch (5).

7. The filter bottle structure of claim 1, wherein: The top of the docking housing (3) is provided with multiple docking ports (9) that are connected to an external liquid inlet device. The docking housing (3) is provided with through holes that communicate with the top cover connector (11) at the positions of the multiple docking ports (9).

8. The filter bottle structure of claim 1, wherein: Both sides of the docking shell (3) are connected by connection ports (8), and both connection ports (8) are connected to the docking shell (3) of the adjacent filter structure to form a multi-tube filter.

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