Quick release device for filter assembly

Abstract

A quick release device of a filter assembly, comprising a filter head, a filter bottle set, a switching member and a quick release device, the lower end of the filter head is connected with a filter core, and has a flow channel module with a first flow channel and a second flow channel, a water valve assembly is arranged between the first flow channel and the second flow channel, the filter bottle set is correspondingly sleeved with the filter head and the quick release device, the switching member has a control rod connected with the flow channel module of the filter head, and the quick release device has a pressing rod, two connecting rods and a pushing member connected with the pressing rod on both sides of the pressing rod and connected with each other, by moving the pressing rod of the quick release device, the pushing member is driven by the connecting rod to move synchronously with the filter bottle to be quickly locked or released, and the switching member is used to control the waterway switch of the flow channel module of the filter head, and is also used to control the locking mechanism of the quick release device, so that a quick release device of a filter assembly with high safety and convenience and quick disassembly and assembly is formed.

Description

Technical Field

[0001] This invention relates to a quick-release device for a filter assembly that allows for rapid replacement and assembly of filter elements. Background Technology

[0002] Traditional water purifiers typically consist of a filter head and a filter bottle. The filter bottle houses the filter cartridge and locks it to the filter head. When replacing the filter cartridge, the water supply must be turned off first, and then the filter bottle is rotated using a wrench to disassemble and install it. However, if the water supply is not turned off before disassembly, water often leaks out, wasting water and increasing cleaning hassles. Furthermore, during disassembly, when using a wrench to unscrew the filter bottle, it is common to over-screw it, causing the filter bottle to detach completely. There is a risk of foot injury from the filter, and another common method involves directly installing a cam slide rail on the filter head and using the rotating cam slide rail structure to achieve the purpose of disassembling and assembling the filter bottle. However, since the cam slide rail is an exposed structure, the assembly is complicated, and there is a risk of loosening or jamming due to accidental prying or pulling. In addition, there is no safety protection device when disassembling the filter bottle, which may cause the filter bottle to fall off. Therefore, how to overcome the problems of quick disassembly and replacement of the filter, prevent water leakage, and avoid accidental drop of the filter bottle is an urgent problem to be solved.

[0003] In view of this, the inventor, based on long-term research and integrated ideas on related industries, designed the invention with years of experience, and after extensive discussions and sample testing, launched this invention. Summary of the Invention

[0004] The main objective of this invention is to provide a quick-release device for a filter assembly, particularly one that utilizes a quick-release device with a movable pressure rod, connecting rod, and pusher, so that the quick-release assembly is connected to the filter head and filter bottle. When the pressure rod is moved up and down, the connecting rod can drive the pusher to move the filter bottle up and down in a linear displacement stroke, allowing the filter bottle to be quickly disassembled and assembled, forming a quick-release device for rapid filter bottle replacement.

[0005] A secondary objective of this invention is to provide a quick-release device for a filter assembly, particularly one in which the switching component is equipped with a control lever that can be rotated to change its positioning angle. This lever connects to the water valve assembly of the filter head flow channel module, allowing the filter head water flow channel to be switched by alternately rotating the switching component to change its positioning angle. Simultaneously, this creates a limit release or locking operation mode for the quick-release device, thus overcoming the safety precaution of water leakage caused by the water source switch not being closed during filter replacement. It also prevents the filter bottle from accidentally falling off during disassembly.

[0006] Another objective of this invention is to provide a quick-release device for a filter assembly, particularly a slide key connected to a spring push block at the upper end of the filter head, which serves as a safety feature to restrict the movement of the quick-release device. When the slide key pushes the push block to engage with the positioning hole of the quick-release device, it is in a locked state, and when it is released from the engagement, it is in an unlocked state.

[0007] Another objective of this invention is to provide a quick-release device for a filter assembly, particularly a fastener pivotally mounted on the push-top component of the quick-release device, wherein the fastening part has a groove that engages with a positioning bolt on the second assembly of the filter bottle, so that pressing the toggle key can push the fastening part backward to disengage the positioning bolt from the fastening part and safely release the filter bottle.

[0008] To achieve the above objectives, the present invention proposes a filter assembly device, comprising a filter head having a flow channel module with a first flow channel and a second flow channel, a water valve assembly disposed between the first and second flow channels, and two opposing sliding grooves respectively provided on the two outer sides; a filter bottle detachably assembled with the filter head, having a first assembly portion and a second assembly portion; and a quick-release device including a pressure rod pivotally mounted with the filter head, having a symmetrical first side and a second side, each side having a first and a second joint portion and a positioning hole respectively; two push members having a first extended sidewall, a second extended sidewall, two slide rails, and two fasteners, the top of the first extended sidewall and the top of the second extended sidewall being connected to form an abutment portion, and the bottom having a communicating slot, the two slide rails being slidably embedded in the two outer sliding grooves of the filter head. The two fasteners are pivotally connected to the second extension wall; the two connecting rods have a first end and a second end, the first end is connected to the second joint of the pressure rod, and the second end is pivotally connected to the second extension side wall of the pusher and connected to the two fasteners; wherein, the pressure rod, connecting rod and pusher of the quick-release device are interconnected, the fastener of the pusher can be movably fastened to the second assembly of the filter bottle, so that the quick-release device moves up and down with the first joint of the pressure rod as a fixed fulcrum, and the fastener of the pusher is connected to the connecting rod provided on the second joint to drive the filter bottle to move synchronously. When the pressure rod is pulled down, the connecting rod moves the pusher down, causing the filter bottle to be loosened and detached. When the pressure rod is pulled up, the connecting rod moves the pusher up, causing the filter bottle to be locked up, so as to achieve a quick-release device for quick disassembly and assembly of the filter bottle. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not a limitation on the actual size of the products involved in the embodiments of this disclosure.

[0010] Figure 1 This is an exploded perspective view of the present invention;

[0011] Figure 2 This is a partially enlarged exploded perspective view of the quick-release device of the present invention;

[0012] Figure 3 This is a three-dimensional composite diagram of the present invention;

[0013] Figure 4 This is a side view of the present invention;

[0014] Figure 5 This is a partially enlarged side view of the present invention;

[0015] Figure 6 This is a previous view of the invention;

[0016] Figure 7 This is a partially enlarged front view of the present invention;

[0017] Figure 8 This is a schematic diagram of the operation and use state from a first-person perspective of the present invention;

[0018] Figure 9 This is a schematic diagram of the operation and use state from a second perspective of the present invention.

[0019] Reference numerals: 100-Filter assembly; 20-Filter head; 21-Flow channel module; 211-First flow channel; 212-Second flow channel; 213-Water valve assembly; 214-Slide groove; 22-Inlet end; 23-Outlet end; 24-Locking part; 25-Slide key; 26-Fixing bracket; 27-Push block; 30-Filter element; 40-Filter bottle kit; 41-Filter bottle; 411-First assembly; 412-Second assembly; 413-Perforation; 414-Groove; 42-Fixing ring; 421-Locking hole; 423-Perforation; 43-Positioning bolt; 431-Locking part; 432-Protrusion; 50-Switching component; 51-Control lever; 52-Handle; 60-Quick release device; 61-Pressure... Rod; 611-First joint; 612-Second joint; 613-Positioning hole; 62-Connecting rod; 621-First end; 6211-Through hole; 622-Second end; 6221-Through hole; 63-Push member; 631-First extended side arm; 632-Second extended side arm; 633-Slide rail; 634-Extension part; 635-Slot; 636-Through hole; 64-Fastener; 641-Pivot; 642-Snap-fit ​​part; 643-Actuating part; 644-Button; 645-Torsion spring; 65-Cover; 651-Upper cover plate; 652-Lower cover plate; 70-Filter cover; 71-Through hole; 80-Locking assembly; X1-First positioning angle; X2-Second positioning angle. Detailed Implementation

[0020] The preferred embodiments are illustrated below with reference to the accompanying drawings, and the contents of the present invention are described in detail below:

[0021] Please see Figure 1 This is an exploded perspective view of the present invention. Figure 2 This is a partially enlarged exploded perspective view of the quick-release device of the present invention. Figure 3 This is a three-dimensional assembly diagram of the present invention. Figure 4 This is a side view of the present invention. Figure 5 This is a partially enlarged side view of the present invention. Figure 6 This is a previous view of the present invention. Figure 7 This is a partially enlarged front view of the present invention. Figure 8 This is a schematic diagram of the operation and use state of the present invention from a first-person perspective. Figure 9 This is a schematic diagram of the operation and use state from a second perspective of the present invention. Its water filter assembly 100 includes: a filter head 20, a filter element 30, a filter bottle assembly 40, a switching element 50, and a quick-release device 60. The filter head 20 has a flow channel module 21 with a first flow channel 211 and a second flow channel 212. A water valve assembly 213 with a flow channel opening is provided between the first and second flow channels 211 and 212 and connected to the switching element 50. The filter bottle assembly 40 includes a filter bottle 41, a fixing ring 42, and a positioning bolt 43. The fixing ring 42 and the positioning bolt 43 are fixed to the two sides of the upper end of the filter bottle 41 to form a reinforcing ring rib. The quick-release device 60 has a movable pressure rod 61, a connecting rod 62, and a pushing element 63. The quick-release device 60 has a pressure rod 61 pivotally connected to the filter head 20, and a pusher 63 connected to the filter bottle assembly 40. When the pressure rod 61 is moved up and down, the pusher 63 can be linked by the connecting rod 62 to drive the filter bottle 41 to move up and down in a linear displacement stroke, so that the filter bottle can be quickly disassembled and assembled, forming a quick-release device that can quickly replace the filter bottle 41. The switching component 50 is designed as a water circuit switch control handle to switch the water circuit of the flow channel module 21, and at the same time forms a locking mechanism for the quick-release device 60, achieving the effect of quick disassembly and assembly. This solves the problem of water leakage caused by not turning off the water source when replacing the filter element, and avoids the problem of the filter bottle accidentally falling off during disassembly.

[0022] To further understand the aforementioned effects of this invention, the constituent components and their assembly methods are described in detail below. Please also refer to... Figures 1 to 7 The details are as follows:

[0023] In this embodiment, the filter head 20 has a flow channel module 21 with a first flow channel 211 and a second flow channel 212. A water valve assembly 213 with a flow channel opening is provided between the first and second flow channels 211 and 212. When the first flow channel water path mode (water filtration mode) is in operation, the flow port of the water valve assembly 213 is connected to the first flow channel 211. The water inlet 22 of the filter head 20 flows through the first flow channel 211, the water valve assembly 213, and the filter element 30 before being sent to the outlet 23 for water discharge. When the second flow channel water path mode (alternating mode) is in operation, the flow port of the water valve assembly 213 is not connected to the first flow channel 211. The water inlet 22 flows directly through the second flow channel 212 and is sent to the outlet 23 for water discharge. The upper two outer sides of the filter head 20 are respectively provided with opposite locking parts 24, and the lower two outer sides are respectively provided with opposite sliding grooves 214, which are fixed support points for positioning and support of quick release device 60 for connection and operation.

[0024] Continuing from the previous paragraph, in this example, the filter head 20 of the present invention is provided with a sliding key 25 connected to a spring push block 27 at its upper end, which is used to form a safety setting for restricting the quick release device 60. The sliding key 25 is connected to the push block 27 at its lower end. The push block 27 has an extension hole (not shown in the figure) on its inner side. The spring abuts against the inner wall of the hole and has a space for left and right movement between it and the extension hole of the push block 27. When the sliding key 25 is moved to move the push block 27 outward, the sliding key 25 pushes the push block 27 to engage with the quick release device positioning hole 613, and it is in a locked state. At this time, the pressure rod 61 is restrained and cannot be pressed down. When the sliding key 25 is moved inward to move the push block 27 inward, it disengages from the positioning hole 613 of the pressure rod 61, and it is released from the lock. At this time, the pressure rod 61 can be pressed down.

[0025] In this embodiment, the filter head 20 of the present invention further includes a fixing bracket 26 and a filter cover 70, such that the fixing bracket 26 is disposed on the rear side of the filter head 20 for positioning and hanging of the water filter assembly 100. The filter cover 70 is a hollow sleeve cover for covering the filter head 20 to form a protective cover, and has a through hole 71 on the front side for the quick-release device 60 pressure rod 61 to extend.

[0026] The filter bottle assembly 40 includes a filter bottle 41, a retaining ring 42, and two positioning bolts 43. The filter bottle 41 has an open end for receiving the filter element 30. A first connection portion 411 and a second connection portion 412 are provided on its outer edge. The first connection portion 411 is for assembling with the filter head 20. The second connection portion 412 has a through hole 413 on each side and a groove 414 on its inner edge. The retaining ring 42 has two locking holes. 421, the second positioning bolt 43 has a locking part 431 and a protrusion 432, so that the fixing ring 42 is embedded in the groove 414 of the second set of joints 412, and the positioning bolt 43 is locked to the second set of joints 412 by the locking part 431 passing through the through hole 423 of the second set of joints 412 and the locking hole 421 of the fixing ring 42. The protrusion 432 of the positioning bolt 43 protrudes out of the outside of the second set of joints 412 to form a reinforcing rib to provide strength reinforcement.

[0027] The switching element 50 has a control lever 51 at one end, which is connected to the water valve assembly 213 of the filter head 20 flow channel module 21 to form a water circuit switch. A handle 52 is provided at the end away from the control lever 51, used to operate the switching element 50 to rotate alternately to a first positioning angle X1 and a second positioning angle X2, changing the positioning angle. When the switching element 50 is at the first positioning angle X1, the control lever 51 rotates, connecting the flow port of the water valve assembly 213 of the filter head 20 flow channel module 21 to the first flow channel 211, thus forming a first flow... In the water path mode (filtration mode), the handle 52 is in a longitudinal axial position (high position), and the quick-release device 60 is locked in a position that prevents it from moving. When the switching element 50 is in the second positioning angle X2, the control lever 51 rotates to close the water valve assembly 213 of the filter head 20 flow channel module 21, blocking the flow port of the water valve assembly 213 from connecting with the first flow channel 211, thus entering the second flow channel water path mode (alternation mode). In this mode, the handle 52 is in a horizontal axial position (low position), releasing the quick-release device 60 from its limit. Furthermore, the switching element 50 is directly designed as a water path switch control handle, so that rotating the handle 52 of the switching element 50 can be used to switch the water path switch of the flow channel module 21, while simultaneously forming a locking mechanism for the quick-release device 60.

[0028] A quick-release device 60 includes a pressure rod 61, two connecting rods 62, and two pushers 63. The pressure rod 61 is configured as a U-shaped crank, with a symmetrical first side and a second side. Each side has a first connecting part 611, a second connecting part 612, and a positioning hole 613. The first connecting part 611 of the pressure rod 61 is locked with a locking assembly 80 and the locking part 24 of the filter head 20 to form a fixed fulcrum for positioning support. The two pushers 63 each have a first extended side arm 631, a second extended side arm 632, and two slide rails 633, so that the first and second extended side arms 631 and 632 are symmetrically arranged and connected at the top to form an extension portion 634. The bottom has a communicating slot 635. The upper end of the second extended arm 632 has a through hole 636. The two slide rails 633 are symmetrically arranged inside the first and second extended side arms 631 and 632, respectively, and are connected to the filter head. 20 Two outer sliding grooves 214 can be fitted together for vertical displacement and sliding. The two connecting rods 62 have opposite first end 621 and second end 622. The first end 621 has a through hole 6211 that cooperates with a locking component 80 to pivotally mount on the second joint 612 of the pressure rod 61. The second end 622 has a through hole 6221 that cooperates with a locking component 80 to pivotally mount on the upper through hole 636 of the second extension arm 632 of the pusher 63. The two ends of the connecting rod 62 are respectively connected to the pressure rod 61 and the pusher 63, forming a linkage. The quick release device 60 uses the first joint 611 as a positioning fulcrum, allowing the pressure rod 61 to move up and down. The connecting rod 62 locked in the second joint 612 drives the pusher 63. At the same time, the fastener 64 in the pusher 63 holds the positioning post 43 of the second assembly part 412 of the filter bottle 41 under force and pulls it, simultaneously driving the filter bottle 41 to slide and move, making it detachable.

[0029] The quick-release device 60's pressure rod 61 further includes a cover 65, which has an upper cover plate 651 and a lower cover plate 652. The upper and lower cover plates 651 and 652 can be embedded in and cover the upper end of the pressure rod 61 so that the cover 65 is inserted into the through hole 71 of the filter cover 70, and at the same time forming a limit space for the upper and lower movement of the pressure rod 61.

[0030] The pusher 63 of the quick-release device 60 further includes two fasteners 64. Each fastener includes a pivot 641, a locking part 642, a torsion spring 645, and a toggle part 643 with a button 644. The pivot 641, combined with a torsion spring 645, is pivotally mounted on the through hole 636 of the second extension wall 632 of the pusher 63. This provides a buffering torque when the button 644 of the toggle part 643 is pressed to push the fastener. The locking part 642 has a groove that can engage with the positioning bolts 43 on both sides of the second connection part 412 of the filter bottle 41, so that the pusher 63 and the filter bottle 41 are interlocked and linked. This causes the lever 61 of the quick-release device 60 to actuate, and the pusher 63 is displaced by the connecting rod 62 pivotally mounted on the second connection part 612. At the same time, the filter bottle 41 is moved synchronously, resulting in a locked or unlocked state.

[0031] Having understood the components, assembly method, and functions of the present invention from the above description, the practical application and usage will be described in detail below. Please continue reading. Figure 8 and Figure 9 The usage process is explained as follows:

[0032] When in use, the operating switch 50 is switched to the second positioning angle X2 to close the water circuit switch. At the same time, the control lever 51 closes the water valve assembly 213 flow port blockage and connects with the first flow channel 211, thus closing the first flow channel water circuit and entering the second flow channel water circuit mode (alternating mode). Then, the slide key 25 above the press filter head 20 is moved, and the push block 27 is pushed to press the spring inward, so that the slide key 25 pushes the push block 27 to disengage from the positioning hole 613 of the pressure rod 61, releasing the handle movement limit. With the first joint part 611 of the pressure rod 61 as the fixed fulcrum, the pressure rod 61 is moved downward, which is linked to the second The connecting rod 62 of the connecting part 612 drives the pusher 63 downward, and at the same time drives the filter bottle 41 downward to release the filter bottle 41 lock; then press the button 644 on the toggle part 643 on both sides of the filter bottle 41, so that the fastener 64 is centered on the pivot part 641, so that the fastening part 642 is offset backward in the slot 635 of the pusher 63, and the positioning bolt 43 is disengaged from the fastening part 642, thus releasing the filter bottle 41. After disassembling and replacing the filter element 30, the filter bottle 41 and the filter head 20 are aligned and inserted, so that the fastener 64 of the quick release device 60 and the positioning bolt 43 of the filter bottle 41 are locked back together. Next, pull the lever 61 upwards, which will simultaneously cause the filter bottle 41 to be fitted into the filter head 20 with the first set of joints 411. Push the lever 61 upwards so that the positioning hole 613 of the lever 61 is aligned with the push block 27 of the slide key 25. Then, pull the slide key 25 back and push the push block 27 outwards. The push block 27 will then be spring-loaded back and will be locked into the positioning hole 613, thus locking the lever 61 back to the locked position. Finally, pull the switching piece 50 back to the first positioning angle X1 so that the handle 52 locks the lever 61 in the bottom position, thus completing the replacement and assembly of the filter element 30. At the same time, the control lever 51 will activate the water valve assembly. The port of component 213 is connected to the first flow channel, returning to the first flow channel water circuit mode (water filtration mode). This quick-release device allows users to quickly disassemble and assemble the filter bottle to replace the filter element. It solves the inconvenience of conventional disassembly and assembly, which requires a disassembly tool to be placed on the filter bottle and rotated. It also avoids the risk of leakage or detachment due to improper force application caused by the inability to effectively control the torsional force during disassembly and assembly. Furthermore, it solves the danger of loosening or jamming caused by accidental prying or pulling of the conventional exposed structure of the filter assembly combined with the cam slide rail. This results in a quick-release device for filter assemblies that is highly safe, convenient, and allows for rapid disassembly and assembly.

[0033] In summary, the quick-release device for the water filter assembly of the present invention is not only convenient to operate and effectively provides a safety mechanism for replacing the water filter cartridge, preventing the risk of water leakage caused by removing the filter bottle without turning off the water circuit, but also utilizes the water circuit switch as a locking mechanism of the quick-release device, and provides a safety button protection switch with a reminder function, as well as a filter bottle release safety button design with a reminder function, to prevent the filter bottle from falling directly and hitting the feet or floor after being released. It is a quick-release device for the rapid disassembly and assembly of the filter bottle.

[0034] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0035] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A quick release device for a filter assembly, comprising: include: A filter head having a flow channel module with a first flow channel and a second flow channel, the first and second... A water valve assembly is provided between the two flow channels, with two opposing sliding grooves on the two outer sides respectively; A filter bottle, detachably assembled with a filter head, having a first connection portion and a second connection portion; And a quick-release device, including: A pressure rod, pivotally connected to the filter head, has a symmetrical first side and a second side, each side having a first and a second joint and a positioning hole respectively; The two push-out components have a first extended sidewall, a second extended sidewall, two slide rails, and two fasteners. The top of the first extended sidewall and the second extended sidewall are connected to form an abutment part, and the bottom is provided with a communicating slot. The two slide rails are slidably embedded in the two outer slide grooves of the filter head, and the two fasteners are pivotally connected to the second extended sidewall. The two-link rod has a first end and a second end. The first end is connected to the second joint of the pressure rod, and the second end is pivotally mounted on the second extended side wall of the push member and connected to the two fasteners. The quick-release device utilizes a pressure rod, connecting rod, and pusher that are interconnected. The pusher's fastener is movably engaged with the second assembly of the filter bottle, allowing the quick-release device to move up and down with the first joint of the pressure rod as a fixed fulcrum. The connecting rod, located on the second joint, moves the pusher's fastener to move the filter bottle synchronously. When the pressure rod is pulled down, the connecting rod moves the pusher downward, causing the filter bottle to loosen and become detachable. When the pressure rod is pulled up, the connecting rod moves the pusher upward, causing the filter bottle to become locked in, thus achieving a quick-release device for rapid disassembly and assembly of the filter bottle.

2. The quick release device of the filter assembly according to claim 1, characterized in that, The filter head further includes a filter cover with a hollow sleeve that fits into the filter head. The front panel has a through hole to provide space for the pressure rod of the quick-release device to be accommodated and operate.

3. The quick-release device for the filter assembly according to claim 1, characterized in that, The filter head has a locking part on its two opposite outer sides at the upper end, so that the first joint of the pressure rod and the locking part of the filter head are pivotally connected to form a central fixed fulcrum.

4. The quick-release device for the filter assembly according to claim 1, characterized in that, The filter head is provided with a sliding key connected to a spring push block at the upper end, which forms a safety setting for the quick release device to restrict the movement. When the sliding key pushes the push block to engage with the positioning hole of the quick release device, it is in a locked state, and when it is disengaged, it is in an unlocked state.

5. The quick-release device for the filter assembly according to claim 1, characterized in that, The second part of the filter bottle can be fitted with a fixing ring and locked in place with two positioning bolts.

6. The quick-release device for the filter assembly according to claim 1, characterized in that, The further embodiment includes a switching element having a control lever connected to the water valve assembly of the filter head, and a handle at the end away from the control lever, which can be rotated to switch between a first positioning angle and a second positioning angle.

7. The quick-release device for the filter assembly according to claim 6, characterized in that, The control lever of the switching component is connected to the water valve assembly of the filter head. By operating the switch, the positioning angle of the handle can be changed to switch the water circuit switch of the filter head flow channel module. It can also control the locking mechanism of the quick-release device, so that the switching component is in the first positioning angle, in the first flow channel water circuit mode (filtration mode). At the same time, the switching component abuts against the pressure rod of the locking quick-release device and restricts its operation. When the switching component is switched to the second positioning angle, it is in the second flow channel water circuit mode (alternation mode). The switching component and the quick-release device are then removed from the abutment and locked.

8. The quick-release device for the filter assembly according to claim 1, characterized in that, The pressure rod of the quick-release device can be fitted with a cover.

9. The quick-release device for the filter assembly according to claim 1, characterized in that, The quick-release device further includes two fasteners, each of which includes a pivot, a fastening part, and a levering part. The pivot is pivotally mounted on the second extension wall of the pusher, and the fastening part has a groove that can engage with the positioning bolts on both sides of the filter bottle, so that the pusher and the filter bottle are in a locked and connected manner.

10. The quick-release device for the filter assembly according to claim 9, characterized in that, The fastener has a button at the front end of the actuating part. Pressing the button will cause the fastener to move in the slot of the pusher. When the button is pushed inward, the positioning bolt will disengage from the groove of the fastening part and become removable.

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