TWI816493B - Quick release device of filter assembly - Google Patents

Abstract

A quick-release structure of a filter assembly, which includes a filter head, a filter bottle set, a switching piece and a quick-release device. The lower end of the filter head is connected to a filter element and has a first flow channel and a second flow channel. The flow channel module has a water valve assembly between the first and second flow channels. The filter bottle kit is respectively set with the filter head and the quick release device. The switching piece has a control rod connected to the flow channel module of the filter head. , the quick release device has a pressure rod, and connectable connecting rods and ejector parts are respectively connected on both sides of the pressure rod. By operating the pressure rod of the quick release device to move, the connecting rod can be used to link the ejector parts to drive the filter bottle. The synchronous position shift can be quickly locked or released, and the switch is used to control the waterway switch of the filter head flow channel module, and is also used to control the locking mechanism of the quick release device, forming a highly safe and convenient system. High-quality filter assembly for quick disassembly and assembly.

Description

Quick release structure of filter assembly

The invention relates to a quick-detachable structure of a filter assembly that can be used to quickly disassemble and assemble a filter element.

According to the general traditional water purifier, it includes a filter head and a filter bottle. The filter bottle is used to hold the filter element and is locked with the filter head of the water purifier. When replacing the filter element, the water source must be turned off first and then filtered through the plate. The purpose of disassembly and installation is achieved by rotating the filter bottle by hand. However, if you forget to turn off the water source before disassembly, it often causes the problem of water jet leakage, resulting in waste of water source and increased trouble of cleaning. In addition, during the disassembly process, through the disassembly, When the wrench is unscrewed on the filter bottle, the unscrewing is often excessive, causing the filter bottle to fall off directly and injure the foot. Another practice is to provide a cam slide directly on the filter head and rotate it. The cam slide rail structure is used to achieve the purpose of disassembly and assembly of the filter bottle. However, the cam slide rail is an exposed structure, which is complicated to assemble. There is a risk of loosening or jamming due to inadvertent movement or hooking, and it is not safe when disassembling the filter bottle. The protective device may cause the filter bottle to fall off. Therefore, how to overcome the problem of quick disassembly and replacement of the filter, prevent water leakage, and avoid the accidental fall of the filter bottle are issues that need to be solved urgently.

In view of this, the inventor relied on his long-term research and comprehensive understanding of related industries to design, and after many years of experience, he came up with the present invention after many discussions and sample tests.

The main purpose of the present invention is to provide a quick-release structure of a filter assembly. In particular, the quick-release device is provided with a pressure rod, a connecting rod, and an ejector that can be connected to each other, so that the quick-release device is connected to the filter head and the filter. The bottles are connected, so that when the pressure rod is pulled up and down, the connecting rod can be used to link the pusher to synchronously drive the filter bottle up and down to perform a linear displacement stroke, so that the filter bottle can be quickly disassembled and assembled, forming a fast Quick release structure for removing and replacing the filter bottle.

The secondary purpose of the present invention is to provide a quick-release structure of a filter assembly, in particular, the switching member is provided with a control rod that can rotate to change the positioning angle, so as to be connected to the water valve assembly of the filter head flow channel module. , so that when the positioning angle of the switching member is alternately rotated, the filter head water channel can be switched, and at the same time, the quick-release device is formed into a limit release or locked opening and closing action mode, which solves the problem of overcoming the problem of the water source switch of replacing the filter core not being turned off and causing extra water flow. leakage safety protection device and prevent the filter bottle from accidentally falling off during the disassembly process.

Another object of the present invention is to provide a quick-release structure of a filter assembly, in particular, a slide key connected to a spring push block is provided on the upper end of the filter head to form a safety limit for the quick-release device. It is set so that when the sliding key pushes the push block and the positioning hole of the quick release device is engaged, it is in a locked state, and the disengagement lever is in an unlocked state.

Another object of the present invention is to provide a quick-release structure of a filter assembly, particularly a fastener on which the push-out part of the quick-release device is pivoted. The fastening part has an embedded groove and the second assembly part of the filter bottle. The positioning bolts are engaged with each other, so that pressing the toggle part can push the buckling part backward to disengage the positioning bolt from the buckling part and release the filter bottle safely.

In order to achieve the above object, the present invention proposes a quick-release structure of a filter assembly, which includes a filter head, a flow channel module with a first flow channel and a second flow channel, and a flow channel module is provided between the first and second flow channels. The water valve assembly is provided with two opposite chutes on the two outer sides; a filter bottle is detachably assembled with the filter head and has a first assembly part and a second assembly part; and a quick release device, It includes a pressure rod, which is pivoted with the filter head and has a first side and a second side that are symmetrical. The two sides respectively have a first and second connecting portion and a positioning hole that are opposite to each other; two ejection parts, with A first extended side wall, a second extended side wall, two slide rails, and two fasteners. The first extended side wall is connected to the top of the second extended side wall to form a resisting portion. The bottom is provided with a connected slot. Two slide rails are slidably embedded in two outer slide grooves of the filter head, and the two fasteners are pivoted to the second extension wall; the two connecting rods have a first end and a second end, and the first end The second end is connected to the second connecting portion of the pressure rod, and the second end is pivoted on the second extended side wall of the pusher and connected with two fasteners; wherein, the pressure rod, connecting rod, and pusher of the quick release device are used. Top The parts are connected with each other, and the fastener of the ejection part can be movably connected to the second assembly part of the filter bottle, so that the quick-release device can move up and down with the first joint part of the pressure rod as a fixed fulcrum, and by being provided on the second The connecting rod on the joint part links the fastener of the ejector part to drive the filter bottle to move synchronously. When the pressure rod is pulled downwards, the connecting rod links the ejector part to move downward, driving the filter bottle downwards to become detachable. Pull the pressure rod upward, and the connecting rod drives the ejector to move upward, which in turn moves the filter bottle upward into a locked state, allowing the filter bottle to be quickly disassembled and assembled.

100:Filter components

20: Filter head

21:Runner module

211:First flow channel

212:Second flow channel

213:Water valve assembly

214:Chute

22: Water entry end

23:Water outlet

24:Knotting part

25: slide key

26: Fixed bracket

27: Push block

30:Filter element

40: Filter bottle kit

41:Filter bottle

411: The first set of connectors

412: The second assembly part

413:Perforation

414: Groove

42:Fixed ring

421:Keyhole

423:Perforation

43: Positioning bolt

431: Locking part

432:Protruding pillar

50:Switching piece

51:Control lever

52: handle

60:Quick release device

61: Pressure lever

611:First joint

612:Second joint part

613: Positioning hole

62: Connecting rod

621: first end

622:Second end

6211, 6221: perforation

63: Ejector

631: First extended side arm

632: Second extended side arm

633:Slide rail

634:Rongshang Department

635: Grooving

636:Perforation

64:Fasteners

641: Pivot

642: Fastening part

643: Dial part

644:Button

645: Torsion spring

65: cover

651: Upper cover

652:Lower cover

70:Filter cover

71:Piercing

80: Locking element

X1: first positioning angle

X2: Second positioning angle

Figure 1 is an exploded perspective view of the present invention.

Figure 2 is a partially enlarged three-dimensional exploded view of the quick release device of the present invention.

Figure 3 is a three-dimensional assembled view of the present invention.

Figure 4 is a side view of the present invention.

Figure 5 is a partially enlarged side view of the present invention.

Figure 6 is a front view of the invention.

Figure 7 is a partially enlarged front view of the present invention.

Figure 8 is a schematic diagram of the operation state of the present invention from a first perspective.

Figure 9 is a schematic diagram of the operation state from the second perspective of the present invention.

The preferred embodiments will be enumerated in conjunction with the drawings, and the detailed description of the present invention is as follows:

Please refer to Figure 1, which is an exploded perspective view of the present invention, Figure 2, which is a partially enlarged perspective exploded view of the quick release device of the present invention, Figure 3, which is an assembled perspective view of the present invention, and Figure 4, which is an exploded perspective view of the present invention. Side view, Figure 5 is a partially enlarged side view of the present invention, Figure 6 is a front view of the present invention, Figure 7 is a partially enlarged front view of the present invention, Figure 8 is a schematic diagram of the operation of the present invention from a first perspective, Figure 9 is a schematic diagram of the operation of the present invention from a second perspective. The filter assembly 100 includes: a filter head 20, a filter element 30, a filter bottle set 40, a switching member 50 and a quick release device 60. The filter head 20 The flow channel module 21 has a first flow channel 211 and a second flow channel 212. The first and second flow channels 211 and 212 There is a water valve assembly 213 with a flow channel opening connected to the switch 50. The filter bottle kit 40 includes a filter bottle 41, a fixed ring 42 and a positioning plug 43. The fixed ring 42 and the positioning plug 43 are fixed to the filter bottle. A reinforcing ring rib is formed on both sides of the upper end of 41. The quick-release device 60 has a pressure rod 61, a connecting rod 62, and an ejection part 63 that can be connected. Among them, the pressure rod 61 of the quick-release device 60 is pivoted to the filter head 20. The top piece 63 is connected to the filter bottle set 40, so that when the pressure rod 61 is pulled up and down, the connecting rod 62 can be used to link the push piece 63 to synchronously drive the filter bottle 41 to perform a linear displacement stroke up and down, so that the filter bottle can be quickly disassembled. Assemble to form a quick release device that can quickly replace the filter bottle 41; and the switching member 50 is designed as a water path switch control handle to switch the water path of the flow channel module 21, and at the same time forms a locking mechanism of the quick release device 60 to achieve The effect of quick disassembly and assembly solves the problem of water leakage caused by not turning off the water source when replacing the filter core, and avoids the problem of accidental falling off of the filter bottle when disassembling.

In order to further understand that the present invention can achieve the above-mentioned effects, the components of the present invention and their assembly methods will be described in detail below. Please also refer to Figures 1 to 7 for details:

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 with a first flow channel is disposed between the first and second flow channels 211 and 212. Assembly 213, when in the first flow channel waterway mode (water filtering mode), the flow port of the water valve assembly 213 is connected with the first flow channel 211, and the water channel of the water inlet end 22 of the filter head 20 flows through the first flow channel 211 and the water valve assembly 213. The filter element 30 is then sent to the water outlet 23 to discharge water, so that in the second channel waterway mode (replacement mode), the flow port of the water valve assembly 213 is not connected to the first channel 211, and the water channel at the water inlet 22 directly flows through the second channel. The second flow channel 212 is sent to the water outlet end 23 for water discharge. The two outer sides of the upper end of the filter head 20 are respectively provided with opposite locking portions 24, and the two outer sides of the lower end are respectively provided with two opposite slide grooves 214, which are used as fixed fulcrums for positioning and supporting the quick release device 60 to connect and operate.

Continuing with what was mentioned in the previous paragraph, in this example, the upper end of the filter head 20 of the present invention is connected to a slide key 25 with a spring push block 27 to form a safety setting for braking the quick release device 60. Below the slide key 25 It is connected with the push block 27. There is an extension hole (not shown in the figure) on the inside of the push block 27. There is an actuating space between the spring against the inner hole wall and the extension hole of the push block 27. When the slide key is pulled, 25 drives the push block 27 to move outward, causing the sliding key 25 to push the push block 27 and engage with the positioning hole 613 of the quick release device, and it is in a locked state. At this time, the pressure rod 61 is blocked and cannot be pressed down. When the slide is pulled, The inward displacement of key 25 drives the push block 27 to move inwards. When retracting, that is, when the pressure rod 61 is separated from the positioning hole 613, the release catch is in an unlocked state, and at this time, the pressure rod 61 can be pressed down.

In this embodiment, the filter head 20 of the present invention further includes a fixing bracket 26 and a filter cover 70, so that the fixing bracket 26 is disposed on the rear side of the filter head 20 for positioning and installation of the filter assembly 100. The filter cover 70 is a hollow sleeve cover for covering the filter head 20 to form a protective cover body. A perforation 71 is provided on the front side for the expansion of the pressing rod 61 of the quick release device 60.

The filter bottle set 40 includes a filter bottle 41, a fixing ring 42, and two positioning pins 43. The filter bottle 41 is provided with an open-end accommodation space for accommodating the filter element 30, and is provided with a first group on the outer edge. The connecting part 411 and a second assembling part 412. The first assembling part 411 is for assembly with the filter head 20. The second assembling part 412 is provided with a corresponding through hole 413 on both sides, and an embedded groove 414 is provided on the inner edge for fixing. The ring 42 is provided with two opposite lock holes 421, and the two positioning bolts 43 have a locking portion 431 and a protruding post 432, so that the fixed ring 42 is embedded in the second assembly portion 412 and the groove 414, so that the positioning bolt 43 is connected to the locking portion 431. The through hole 423 of the second assembly part 412 and the lock hole 421 of the fixing ring 42 are locked to the second assembly part 412, and the protruding post 432 of the positioning bolt 43 is protruded outside the second assembly part 412 to form A reinforcing rib to provide strength reinforcement.

The switching member 50 has a control rod 51 at its end, which is connected to the water valve assembly 213 of the flow channel module 21 of the filter head 20 to form a waterway switch. A handle 52 is provided at the end away from the control rod 51 for operating the switching member. 50 turns alternately to a first positioning angle X1 and a second positioning angle X2 to change the positioning angle, so that when the switching member 50 is at the first positioning angle X1, the control rod 51 rotates the water valve assembly 213 of the filter head 20 and the flow channel module 21 The flow port communicates with the first flow channel 211 in the first flow channel waterway mode (water filtering mode). At this time, the handle 52 is in a longitudinal axial state (at a high position), and restricts the quick release device 60 to a locking state that cannot be displaced, so that the switch When the component 50 is at the second positioning angle mode (replacement mode), the handle 52 is in a horizontal axial state (in a low position), and the limit of the quick release device 60 is released. Furthermore, the switching member 50 is directly designed as a waterway switch control handle, so that rotating the handle 52 of the switching member 50 can be used to switch the waterway switch of the flow channel module 21 and at the same time form a locking mechanism of the quick release device 60 .

63內之扣件64扣持濾瓶41第二組接部412定位栓43受力拉引，同步帶動濾瓶41滑動位移，呈可拆卸狀態。 A quick release device 60 includes a pressure rod 61, two connecting rods 62, and two ejector parts 63. The pressure rod 61 is configured as a U-shaped crank and has a relatively symmetrical first side and a second side. The two sides have respective It has an opposite first connecting part 611, a second connecting part 612 and a positioning hole 613. The first connecting part 611 of the pressure rod 61 cooperates with a locking element 80 and is locked with the locking part 24 of the filter head 20 to form a certain position. The fixed fulcrum of the support; the two pushing parts 63 respectively have a first extending side arm 631, a second extending side arm 632, and two slide rails 633, so that the first and second extending side arms 631 and 632 are arranged in a symmetrical manner. An extension portion 634 is formed at the top, and a connected slot 635 is provided at the bottom. A through hole 636 is provided at the upper end of the second extension arm 632, and two slide rails 633 are symmetrically provided on the first and second extension side arms 631, 631 and 631, respectively. The inner side of 632 is embedded with the two outer chute 214 of the filter head 20 and can move up and down. The two connecting rods 62 are provided with opposite first and second ends 621 and 622. The first end 621 is provided with a through hole 6211. A locking element 80 is used to pivot on the second joint portion 612 of the pressure rod 61 . The second end 622 has a through hole 6221 and a locking element 80 is used to pivot the upper end of the second extension arm 632 of the pusher 63 through a through hole 636 On the top, the two ends of the connecting rod 62 are respectively connected to the pressure rod 61 and the ejection member 63 to form a linkage with each other, so that the quick release device 60 uses the first joint portion 611 as a positioning fulcrum, so that the pressure rod 61 can be pulled up and down, and the quick release device 60 is locked. The connecting rod 62 provided at the second joint part 612 drives the ejection member 63, and at the same time, the ejection member

The fastener 64 in the filter bottle 41 holds the second connecting portion 412 of the filter bottle 41 and the positioning bolt 43 is pulled by force, which synchronously drives the filter bottle 41 to slide and move into a detachable state.

The pressure rod 61 of the above-mentioned quick release device 60 further includes a set of covers 65 with an upper cover 651 and a lower cover 652. The upper and lower covers 651 and 652 can be embedded up and down to cover the upper end of the pressure rod 61 so that the cover 65 Correspondingly, it extends through the through hole 71 of the filter cover 70 and simultaneously forms a limiting space for the upper and lower movement of the pressure rod 61 .

The ejection component 63 of the above-mentioned quick release device 60 further includes two fasteners 64. Each fastener includes a pivot portion 641, a buckle portion 642, a torsion spring 645 and a toggle portion 643 of a button 644. The pivot portion 641 is combined with a torsion spring 645 respectively pivoted on the through hole 636 of the second extension wall 632 of the ejection member 63 to form a buffering torque effect when the button 644 of the toggle portion 643 is pressed to push the fastener. The buckle portion 642 has An embedded groove and the positioning pins 43 on both sides of the second connecting portion 412 of the filter bottle 41 can engage with each other, so that the pusher 63 and the filter bottle 41 are interlocked and connected, so that the pressure rod 61 of the quick release device 60 can be pulled. When actuated, the connecting rod 62 pivoted on the second joint portion 612 links the displacement of the pusher 63, and at the same time drives the filter bottle 41 to synchronously move to a locked or removed state.

After understanding the components, assembly methods, and functional uses of the present invention from the above description, the actual application method will be described in detail later. Please continue to refer to Figures 8 and 9. The usage process is as follows:

When it is in operation, the operating switching member 50 is switched to the second positioning angle X2 to close the waterway switch, and at the same time, the control rod 51 closes the flow port of the water valve assembly 213 to block the communication with the first flow channel 211, so that the first flow channel waterway is closed, and the second flow path is formed. Waterway mode (replacement mode); then push the slide key 25 above the filter head 20, and push the push block 27 against the spring to extend inward, so that the slide key 25 pushes the push block 27 away from the positioning hole 613 of the pressure rod 61 When the lever is pressed, the movement limit of the handle 52 is released, and the first joint part 611 of the pressure rod 61 is used as a fixed fulcrum to pull the pressure rod 61 downward, linking the connecting rod 62 provided at the second joint part 612, and driving the ejection part 63 toward the down, and at the same time drive the filter bottle 41 to release downward, and remove the lock of the filter bottle 41; then press the buttons 644 on the toggle parts 643 on both sides of the filter bottle 41, so that the fastener 64 takes the pivot part 641 as the axis. The buckling part 642 is offset backward in the slot 635 of the ejection part 63, and the positioning pin 43 is disengaged from the buckling part 642, so that the filter bottle 41 can be released. After disassembling and replacing the filter element 30, the filter bottle 41 can be Align and insert the filter head 20 so that the fastener 64 of the quick release device 60 and the positioning pin 43 of the filter bottle 41 return to the lock. At this time, the pressure rod 61 is pulled upward to simultaneously drive the filter bottle 41 to the first position. A set of joints 411 is inserted into the filter head 20 and assembled, and the pressure rod 61 is pushed upward so that the positioning hole 613 of the pressure rod 61 is opposite to the push block 27 of the slide key 25, and then the slide key 25 is pulled back and pushed at the same time. The block 27 moves outward and returns to the positioning hole 613 due to the elastic force, so that the pressure rod 61 returns to the positioning locked state. Finally, the switching member 50 is moved back to the first positioning angle X1, so that the handle 52 is pressed upward and downward. The rod 61 is in a locked state to complete the disassembly and assembly of the filter element 30. At the same time, the control rod 51 is connected to the opening of the water valve assembly 213 to connect with the first flow channel and return to the first flow channel waterway mode (water filtering mode), so that The quick-release device allows users to quickly disassemble and assemble the filter bottle and replace the filter element. It solves the inconvenience of having to put a disassembly tool on the filter bottle to disassemble and install it in a rotating manner, and avoids the inability to effectively control the twisting force during the disassembly and assembly process. It creates the risk of leakage or falling off due to improper application of force, and solves the problem of the conventional exposed structure of the filter assembly combined with the cam slide rail, which has the risk of loosening or jamming due to inadvertent movement or hooking, in order to achieve a higher level of safety. High efficiency and convenience with quick-disassembly filter assembly.

To sum up, the quick-release structure of the filter assembly of the present invention not only operates It is convenient and can effectively provide a safety mechanism for replacing the water filter element. In addition to preventing the risk of water leakage caused by removing the filter bottle without closing the water line, it can also be used to switch the water line on and off and is designed as a quick-release locking device. mechanism, and provides a safety button protection switch with a reminder function, and a filter bottle release safety button design with a reminder function to prevent the filter bottle from falling directly and hitting the feet or the floor after being loosened. One of the dangers is that the filter bottle can be quickly Quick release device for disassembly and assembly. Knowing that this invention can indeed be widely used by related industries, and that this invention has complied with the provisions of the patent law before application, I file an invention patent application in accordance with the law. I sincerely pray that the Bureau will take a clear look and grant the patent.

However, the above is only one possible embodiment of the present invention and should limit the scope of the present invention. That is, all equivalent changes or modifications based on the characteristics and spirit described in the scope of the present invention shall still belong to the scope of the present invention. Within the scope covered by the patent of this invention.

22: Water entry end

25: Slide key

26: Fixed bracket

40: Filter bottle kit

50:Switching piece

60:Quick release device

64:Fasteners

644:Button

70:Filter cover

Claims (10)

A quick-release structure of a filter assembly, which includes: a filter head, a flow channel module with a first flow channel and a second flow channel, a water valve assembly is disposed between the first and second flow channels, and is provided on both outer sides. Each is provided with two opposite chutes; a filter bottle, which is detachably assembled with the filter head and has a first connecting part and a second connecting part; and a quick release device, including: a pressure rod, and The filter head is pivoted and has a first side and a second side that are symmetrical, and the two sides respectively have a first and second connecting portion and a positioning hole that are opposite to each other; the two ejection parts have a first extended side wall, A second extended side wall, two slide rails, and two fasteners. The first extended side wall is connected to the top of the second extended side wall to form a resisting portion. The bottom is provided with a connected slot. The two slide rails can slide Embedded in two outer chute of the filter head, the two fasteners are pivoted to the second extension wall; the two connecting rods have a first end and a second end, and the first end is connected to the second end of the pressure rod. The connecting portion is connected, and the second end is pivoted on the second extended side wall of the ejection member and connected with two fasteners; wherein, the pressure rod, connecting rod, and ejection member of the quick release device are connected to each other, The fastener of the pusher can be movably connected to the second assembly portion of the filter bottle, allowing the quick-release device to move up and down with the first joint portion of the pressure rod as a fixed fulcrum, and through the connection provided on the second joint portion. rod, linking the fasteners of the ejection part to drive the filter bottle to move synchronously. When the pressure rod is pulled downward, the connecting rod will link the ejection part to move downward, driving the filter bottle downward to loosen and retract into a detachable state. When the pressure rod is pulled downward, On the top, the connecting rod drives the ejector to move upward, and the linked filter bottle is locked upwards, allowing the filter bottle to be quickly disassembled and assembled. The quick-release structure of the filter assembly as described in claim 1, wherein the filter head further includes a filter cover, the filter cover has a hollow cover that matches the filter head, and the front panel is provided with a perforation for The pressure rod of the quick release device is provided with an operating space. The quick-release structure of the filter assembly as described in claim 1, wherein a locking portion is provided on two opposite outer sides of the upper end of the filter head, so that the first joint portion of the pressure rod and the locking portion of the filter head are pivoted relative to each other to form a central fixed fulcrum. . The quick-release structure of the filter assembly as described in claim 1, wherein the upper end of the filter head is provided with a slide key connected to a spring push block, so that the quick-release device forms a safety device with a braking limit, allowing the slide key to push When the push block is engaged with the positioning hole of the quick release device, it is in a locked state, and when it is disengaged from the engagement, it is in an unlocked state. The quick-release structure of the filter assembly as described in claim 1, wherein the second assembly part of the filter bottle can be sleeved and combined with a fixing ring and set in position with two positioning latches. The quick-release structure of the filter assembly as described in claim 1 further includes a switching member with a control rod connected to the water valve assembly of the filter head, and a handle is provided at one end away from the control rod, which can be rotated to switch. There is a first positioning angle and a second positioning angle. The quick-release structure of the filter assembly as described in claim 6, wherein the control rod of the switching member is connected to the water valve assembly of the filter head, and the positioning angle of the handle of the switching member can be changed by operation to switch and control the filter head. The waterway switch of the flow channel module can be used to control the locking mechanism of the quick release device so that the switching member is at the first positioning angle and in the first flow channel waterway mode (water filtering mode), and the switching member contacts the locking quick release device at the same time. The pressure rod of the device is removed and the action is restricted, so that when the switching member is switched to the second positioning angle, it is in the second flow channel waterway mode (replacement mode), and the switching member and the quick release device are removed from abutment and fixed to unlock. The quick-release structure of the filter assembly as described in claim 1, wherein the pressure rod of the quick-release device can be fitted with a set of covers. The quick-release structure of the filter assembly as claimed in claim 1, wherein the quick-release device further includes two fasteners, the two fasteners respectively include a pivot part, a buckle part and a toggle part, and the pivot parts respectively The ejector part is pivoted on the second extension wall of the ejector part, and the buckling part has a slot that can engage with the positioning pins on both sides of the filter bottle, so that the ejector part and the filter bottle are interlocked. Move in succession. The quick-release structure of the filter assembly as described in claim 9, wherein a button is provided at the front end of the toggle portion of the fastener, so that pressing the button can cause the fastener to move in the slot of the ejection component, causing the push button to move toward When displaced internally, the positioning bolt breaks away from the embedding groove of the fastening part and becomes removable.

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