Filter free of installation tool

Abstract

The invention discloses a filter without an installation tool. The filter comprises a filter cover, a filter bottle assembly, a switching piece and a quick release device, the filter cover is provided with a first end and a second end, the first end is provided with a water inlet channel and a water outlet channel which are communicated, and the second end is provided with more than one embedded groove. The upper end edge of the filter bottle assembly is provided with a locking part and an abutting and supporting blocking edge, and a filter element is contained in the inner side of the filter bottle assembly. The switching piece is provided with a handle and a control shaft rod. The quick release device comprises more than one movable assembly which can stretch in the embedded groove in a reciprocating manner; the outer side of the pushing piece is provided with a blocking part and a sleeving part, and the inner side of the pushing piece is provided with a locking part which is correspondingly locked with the locking part; the fastener is arranged on the sleeving part. Therefore, the operation filter bottle is pushed upwards, the blocking part of the pushing and abutting piece abuts against the upper portion of the movable assembly, and the movable assembly is clamped between the blocking part of the pushing and abutting piece and the buckling piece. The filter bottle is pushed to the peak and then rapidly pulled down, the filter bottle is pushed to move up and down, the fastener abuts against the movable assembly and is oppositely arranged in a staggered mode, the blocking part of the pushing and abutting piece drives the fastener to move downwards, and the filter bottle is disassembled.

Description

Technical Field

[0001] This invention relates to a filter that can be quickly disassembled and assembled without installation tools. Background Technology

[0002] Note that traditional whole-house water filtration systems, specifically Point of Entry (POE) centralized filtration systems, are pre-filters installed at the point where the water pipes enter the house. These systems include a filter head and a filter bottle. The filter bottle houses the filter cartridge and locks it to the water purifier's filter head. In most commercially available water filters, replacing the filter cartridge requires turning off the water supply before using a wrench to rotate the filter bottle for disassembly and installation. However, forgetting to turn off the water supply before disassembly often causes water to spray out, wasting water and increasing cleaning hassles. Furthermore, during disassembly, using a wrench to unscrew the filter bottle can be difficult. One common practice is to over-rotate the filter cartridge, causing it to fall off and injure the feet. Another method involves a cam slide rail directly on the filter head, using a rotating cam slide rail structure to achieve the purpose of disassembling and assembling the filter cartridge. 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. Furthermore, there is no safety protection device when disassembling the filter cartridge, which may cause the filter cartridge to fall off. Therefore, how to overcome the problems of quick disassembly and replacement of filter cartridges, prevent water leakage, and avoid accidental drop of filter cartridges is an urgent issue to be solved. Summary of the Invention

[0003] The main objective of this invention is to provide a tool-free filter, particularly one with a quick-release device at the junction of the filter cap and filter bottle assembly, featuring a movable and detachable structure. This quick-release device includes a resiliently extendable movable component on the filter cap, a pusher on the locking portion of the filter bottle assembly, and a fastener on the outer circumferential surface of the pusher. By pushing the filter bottle upwards, the pusher abuts against the upper part of the movable component, positioning the movable component between the pusher and the fastener, thus locking the filter cap and filter bottle assembly in a snap-locked state. Push the filter bottle to the top and then quickly pull it down. The up-and-down movement of the filter bottle simultaneously drives the quick-release device's fastener to reciprocate and press against the movable component, allowing it to elastically extend and retract. This creates an alternating, staggered alignment. When the fastener is pushed to the top of the movable component, the movable component is simultaneously positioned below the pusher and the fastener. The pusher then holds the fastener down to disengage it and quickly remove the filter bottle. This tool-free, highly convenient method allows for quick locking, disassembly, and assembly, effectively solving the problem of the inconvenience of needing auxiliary tools to disassemble the filter element when changing it.

[0004] A secondary objective of this invention is to provide a tool-free filter, particularly a switching component located at the first end of the filter cover. One end of the switching component has a handle with a rotation direction indicator line, and the other end has a flow hole that communicates with the water flow channel of the filter cover, forming a through-hole. A control shaft moves synchronously with the handle. The rotation direction indicator line on the handle is aligned parallel to the flow hole on the control shaft. When the rotation direction indicator line on the switching component handle is vertical, it indicates the water filtration mode; when it is horizontal, it indicates the disassembly mode. This allows for quick switching of the water flow channel's inlet mode. Furthermore, the indicator line is vertically engraved on the handle, eliminating the inconvenience and process of separately marking the switch prompts on the outside of the filter cover corresponding to the rotation direction of the switching component handle. This also effectively solves the problem of traditional filters requiring repeated switching of the main water supply switch when replacing the filter element.

[0005] To achieve the above objectives, the present invention proposes a tool-free filter, comprising: a filter cover having a first and a second end connected together; the first end having inlet and outlet holes connected together; and the second end having one or more grooves; a filter bottle assembly including a filter bottle disposed below the filter cover and detachably assembled with the filter cover; a locking part and a supporting flange adjacent to each other on the upper outer side of the filter bottle, abutting against the second end; and a switching element disposed at the first end of the filter cover, one end of which has a... One end has a handle, and the other end has a control shaft with a through-hole for the valve port. The handle and the control shaft move synchronously and rotate in the same direction. A quick-release device includes one or more movable components, a pusher, and a fastener. The movable components are correspondingly positioned to the groove at the second end of the filter cover and can elastically extend into the groove for reciprocating motion. The pusher has a stop and a collar on its outer side, and a locking part on its inner side that locks against the locking part of the filter bottle. The fastener is slidably mounted on the outside of the pusher. The side fitting part is spaced apart from the stop part; wherein, by rotating the handle of the switching element, the control shaft is activated to switch the water inlet mode of the water flow channel to either filtration mode or replacement mode. In filtration mode, the flow hole with a through valve on the control shaft of the switching element connects to the water flow channels of the filter element and the inlet and outlet channels of the filter cover, allowing water to flow out. In replacement mode, the flow hole with a through valve on the control shaft of the switching element connects only to the water flow channels of the inlet and outlet channels of the filter cover, allowing water to flow out, thus making the filter bottle ready for assembly. In both the operation and disassembly states, when the filter bottle is pushed upwards, the pusher engages with the upper part of the movable component, causing the movable component to be locked between the pusher and the fastener, thus locking the filter bottle. When the filter bottle is pushed upwards to its maximum position and then quickly pulled down, the up-and-down movement of the filter bottle causes the fastener to move and engage with the movable component, alternating up and down. The pusher's stop moves the fastener downwards simultaneously, completing the disassembly of the filter bottle. This achieves a tool-free and highly convenient filter that can be quickly locked or disassembled. Attached Figure Description

[0006] 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.

[0007] Figure 1 This is a perspective view of the present invention;

[0008] Figure 2 This is a side sectional view of the present invention;

[0009] Figure 3 This is an exploded view of the present invention;

[0010] Figure 4 This is a perspective view of the switching component of the present invention;

[0011] Figure 5 This is a schematic diagram of the start-up and disassembly mode of the present invention;

[0012] Figure 6 This is a partially enlarged view of the start-up and disassembly mode of the present invention;

[0013] Figure 6a This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 1 ;

[0014] Figure 6b This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 2 ;

[0015] Figure 6c This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 3 ;

[0016] Figure 6d This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 4 ;

[0017] Figure 7a This is a schematic diagram of the filter bottle assembly process of the present invention. Figure 1 ;

[0018] Figure 7b This is a schematic diagram of the filter bottle assembly process of the present invention. Figure 2 .

[0019] Reference numerals: 100-Filter; 20-Filter cover; 201-Pressure rod; 21-First end; 211-Inlet channel; 212-Outlet channel; 213-Inlet connector; 214-Outlet connector; 22-Second end; 221-Perforation; 222-Matching groove; 223-Groove; 23-Sheath; 24-Fixing bracket; 30-Filter bottle assembly; 31-Filter bottle; 311-First accommodating space; 312-Second accommodating space; 313-Locking part; 314-Supporting flange; 315-Notch; 32-First positioning plate; 33-Second... Positioning plate; 321-Flow channel through hole; 40-Switching component; 41-Handle; 411-Grasp; 412-Indicator line; 42-Control shaft; 421-Flow hole; 43-Ratchet mechanism; 50-Quick release device; 51-Moving component; 511-Support plate; 512-Locking component; 513-Spring; 52-Pushing component; 521-Block; 522-Suitable part; 523-Locking part; 53-Fastener; 60-Filter element; 70-Pressure relief valve; A1-Water filtration mode; A2-Replacement mode; X1-First positioning direction; X2-Second positioning direction. Detailed Implementation

[0020] The present invention will be described in detail with reference to the accompanying drawings, showing preferred embodiments.

[0021] First, please refer to Figure 3 As shown, Figure 3This is an exploded view of the present invention. The tool-free filter 100 of the present invention includes: a filter cover 20 with an inlet channel 211 and an outlet channel 212; a filter bottle assembly 30 that is fitted onto the filter cover 20; a switching component 40; and a quick-release device 50. The filter cover 20 has a first end 21 and a second end 22 connected vertically. The inner side of the first end 21 is provided with a water flow channel connecting the inlet channel 211 and the outlet channel 212. The filter bottle assembly 30 includes a filter bottle 31. The filter bottle 31 has a locking part 313 and a supporting flange 314 at its upper end, and a filter element 60 is locked inside. One end of the switching part 40 is a handle 41 located on the outside of the filter cover 20, and the other end is a control shaft 42 connected to the water flow channel of the filter cover 20 for switching the water flow channel inlet mode. The quick-release device 50 is a movable disassembly structure, including a movable component 51 that can be elastically extended and retracted on the filter cover 20 and a lock located on the filter bottle assembly 30. The pusher 52 of the fitting part 313 and the fastener 53 with a tapered surface on the outer side of the fitting part 522 of the pusher 52, wherein by pushing the filter bottle 31 to the top and then pulling it down, the filter bottle 31 can cause the fastener 53 of the quick-release device 50 to reciprocate against the movable component 51 to elastically extend and retract, and can form an alternating up-and-down offset opposite position. When the fastener 53 moves to the bottom of the movable component 51, and at the same time makes the movable component 51 located between the pusher 52 and the fastener 53, the filter cover 20 The filter bottle assembly 30 is in a snap-locked state. When the fastener 53 is pushed and moved above the movable component 51, the movable component 51 is positioned below the pusher 52 and the fastener 53. Then, the pusher 52 holds the fastener 53 down to disengage from the movable component 51, allowing the filter bottle 31 to be quickly removed. This achieves tool-free convenience and allows for quick locking or disassembly and assembly operations, effectively solving the problem of the inconvenience of needing auxiliary tools to disassemble the filter element when changing it.

[0022] The components of this invention and their assembly methods are described in detail below. Please also refer to... Figures 1 to 7b , Figure 1 This is a perspective view of the present invention; Figure 2 This is a side sectional view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a perspective view of the switching component of the present invention; Figure 5 This is a schematic diagram of the start-up and disassembly mode of the present invention; Figure 6 This is a partially enlarged view of the start-up and disassembly mode of the present invention;

[0023] Figure 6a This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 1 ; Figure 6b This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 2 ; Figure 6c This is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 3 ; Figure 6dThis is a schematic diagram of the filter bottle disassembly operation of the present invention. Figure 4 ; Figure 7a This is a schematic diagram of the filter bottle assembly process of the present invention. Figure 1 ; Figure 7b This is a schematic diagram of the filter bottle assembly process of the present invention. Figure 2 Details are as follows:

[0024] In this embodiment, the filter cover 20 has a first end 21 and a second end 22 connected together. The inner side of the first end 21 is provided with a water flow channel 211 and a water flow channel 212 that are connected. The two outer sides are respectively provided with a water inlet connector 213 and a water outlet connector 214 that are connected to the water inlet channel 211 and the water outlet channel 212. A through hole 221 is provided above the first end 21 for a switching component 40 to switch the water flow channel water inlet mode. The width area of ​​the second end 22 is a stepped cover that is larger than the area of ​​the first end 21. An annular fitting groove 222 is provided on the outer edge of the second end 22. More than one groove 223 is provided at intervals on the circumferential surface of the annular edge of the fitting groove 222 for the movable component 51 of the quick release device 50 to be correspondingly fitted, so that the inner side of the second end 22 of the filter cover 20 forms an elastic hook.

[0025] The filter cap 20 has one or more protrusions (not shown in the figure) at the junction of its inner side and the bottle opening of the filter bottle assembly 30. These protrusions allow the filter cap to be screwed into the filter bottle clockwise, creating a foolproof design. A corresponding pressure rod 201 is provided below the switching member 40 between the first end 21 and the second end 22 of the filter cap 20. This rod allows the handle 41 of the switching member 40 to be rotated, providing a downward pressure force to assist in disassembly. The filter cap 20 further includes a protective sleeve 23 and a fixing bracket 24. The protective sleeve 23 is fitted into the fitting groove 222 of the second end 22 of the filter cap 20, forming a protective sleeve for the filter cap 20. The fixing bracket is located on the rear side of the filter cap 20 for positioning and suspending the filter 100.

[0026] The filter bottle assembly 30 includes a filter bottle 31. Inside the filter bottle 31, a first positioning plate 32 and a second positioning plate 33 are spaced apart and parallel to each other, forming a first receiving space 311 and a second receiving space 312. The first receiving space 311 is used to receive a filter element 60, such that the bottom of the filter element 60 can abut against the upper end of the second positioning plate 33, and the upper end of the filter element 60 can be locked with the first positioning plate 32. Simultaneously, the filter element 60 has a flow channel through hole 321. The filter bottle 31 is fitted with a locking part 313 with external threads and a supporting flange 314 on the outer side of the upper bottle mouth, respectively, for corresponding assembly with the filter cover 20 and the quick release device 50. A pressure relief valve 70 is installed at the bottom of the filter bottle 31 and connected to the inside of the second accommodating space 312, so that when disassembling the filter bottle 31, the pressure inside the bottle can be released by pressing from the outside of the bottom, so as to make the disassembly and use of the filter bottle 31 easier.

[0027] The filter bottle 31 has one or more recessed notches 315 at intervals on the inner edge of the upper opening. These notches are used to fit the protrusions (not shown in the figure) on the inner side of the filter cover 20, which is a foolproof design to prevent the filter cover 20 from being screwed into the filter bottle in a clockwise direction. The notches also allow the pressure rod 201 of the filter cover 20 to extend downward into the notch 315 when the switch 40 is rotated, so as to form a downward force to assist in disassembly.

[0028] The switching component 40 has a handle 41 at one end, located outside the through hole 221 at the first end 21 of the filter cover 20, and a control shaft 42 with a through valve port at the other end. This handle 41 is positioned between the inlet channel 211 and the outlet channel 212 inside the filter cover 20. Rotating the handle 41 causes the control shaft 42 to rotate, thus turning the through valve port 421 to switch the water inlet mode to either filtration mode A1 or replacement mode A2. In filtration mode A1, the through valve port 421 of the control shaft 42 connects to the flow channel through hole 321 of the filter element 60 and the inlet channel of the filter cover 20. 211. The water path of the outlet channel 212 is connected, so that the water path of the inlet end of the filter cover 20 enters through the inlet channel 211, flows through the flow hole 421 with the through-hole valve of the control shaft 42 to the flow channel through hole 321, passes through the filter element 60, and then exits through the outlet end of the outlet channel 212; when in the replacement mode A2, the flow hole 421 with the through-hole valve of the control shaft 42 is connected to the water path of the inlet channel 211 and the outlet channel 212 of the filter cover 20, but is not connected to the filter flow channel through hole 321, so that the water path of the inlet end flows directly from the inlet channel 211 through the outlet channel 212 to the outlet end.

[0029] The handle 41 of the aforementioned switching component 40 is configured as a knob, and a grip 411 with a longitudinal indicator line 412 is provided on the center line of the handle 41. The direction of the flow hole 421 of the control shaft 42, which is a through-valve port, is parallel to the direction of the indicator line 412 of the grip 411.

[0030] In short, when the handle 41 of the switching component 40 is rotated in the first positioning direction X1 (in this embodiment, the preset rotation angle is 0 degrees), the flow hole 421 of the control shaft 42 with the through valve port is vertically oriented and is connected to the water passages of the filter element 60 through hole 321, the filter cover 20 inlet hole 211, and the filter cover 20 outlet hole 212, thus presenting the water filtration mode A1. When the handle 41 of the switching component 40 is rotated in the second positioning direction X2 (in this embodiment, the preset rotation angle is 90 degrees / 270 degrees), the flow hole 421 of the control shaft 42 with the through valve port is horizontally oriented and is only connected to the water passages of the filter cover 20 inlet hole 211 and the filter cover 20 outlet hole 212, but is not connected to the flow hole 321 of the filter element 60, thus presenting the replacement mode A2.

[0031] The control shaft 42 of the aforementioned switching component 40 is connected to a ratchet mechanism 43 with helical teeth at the end away from the handle 41. A lever (not shown in the figure) is provided on the rear side of the helical teeth of the ratchet mechanism 43 to engage with it, thereby controlling the handle 41 and the control shaft 42 of the switching component 40 to move synchronously in a unidirectional stepping motion. In this example, the switching component 40 is preset to be able to rotate in the counterclockwise direction and to stop in the reverse (clockwise direction).

[0032] The quick-release device 50 is a movable disassembly structure, including one or more movable components 51, a pusher 52, and a fastener 53. Each movable component 51 is elastically telescopically disposed in the corresponding groove 223 of the second end 22 of the filter cover 20. Each movable component 51 includes a support piece 511, two springs 513, and two locking components 512. The springs 513 cooperate with the locking components 512 and are pivotally mounted on both sides of the support piece 511, so that the support piece 511 can elastically telescopically move. The inner side of the pusher 52 is provided with a locking part 523 with internal threads, which is locked to the filter bottle assembly 30 with an externally threaded locking part 313. The outer top edge is provided with a stop 521 with an inverted conical surface. A fitting part 522 with a smaller diameter and a smooth surface is provided along the stop 521. The upper and lower edges of the fastener 53 have upper and lower opposite conical surfaces and are fitted onto the fitting part 522 on the outer ring surface of the pusher 52. There is a gap between the fastener and the stop 521. This allows the movable component 51 provided at the second end 22 of the filter cover 20 to be inserted into the gap between the stop 521 of the pusher 52 and the fastener 53 when it moves. At the same time, when it is disassembled and moved, the fastener 53 and the movable component 51 can be alternately offset and positioned.

[0033] The outer side of the support piece 511 of the above-mentioned quick-release device is provided with a smooth sheet-like body of a certain thickness, and the inner side is provided with a curved surface corresponding to the arc of the pusher 52 on the bottle mouth locking part 313 of the filter bottle 31. The spring 513 is provided on both sides of the support piece 511 and is locked in the groove 223 of the second end 22 of the filter cover 20 with the locking assembly 512 for positioning. This allows the support piece 511 to reciprocate and extend into the groove 223 under the elastic action of the spring 513, forming an elastic hook effect.

[0034] When the filter cap 20 and filter bottle 31 are in a separated state, please refer to the following when assembling them: Figure 3 , Figure 7a and Figure 7bThe filter bottle 31 is pushed upward into the filter cover 20, so that the stop 521 of the inclined conical surface of the end face of the pusher 52 can push against the movable component 51 of the quick release device 50 to automatically press against the support plate 511 and retract it into the groove 223 of the second end 22 of the filter cover 20. After the stop 521 of the pusher 52 is pressed against the upper part of the movable component 51, the movable component 51 is released from the pressing force and is pushed back out of the groove 223 of the second end 22 by the elastic force of the spring 513, and the stop 521 of the pusher 52 is in a limited locking state, thus completing the locking.

[0035] When the filter cover 20 and filter bottle 31 are in the assembled state, please refer to the following when disassembling: Figure 6a , Figure 6b , Figure 6c , Figure 6d The filter bottle 31 is pushed upward to its maximum position and then quickly pulled down. During the upward and downward movement of the filter bottle 31, the fastener 53 located on the outer annular fitting part 522 of the pusher 52 can be driven to press the movable component 51, forming an alternating vertical offset between the fastener 53 and the movable component 51. This causes the fastener 53 to move above the movable component 51, so that the movable component 51 is simultaneously located below the fastener 53 and the stop part 521 of the pusher 52. This allows the stop part 521 of the pusher 52 to hold the fastener 53 and press the movable component 51 downward, thus disengaging it and forming a disassembled state.

[0036] When assembling filter bottle 31, please refer to... Figure 7a , Figure 7b Simply rotate the switch 40 handle 41 to switch to the bypass mode of the water passage (in this embodiment, it is preset to rotate counterclockwise to 90 degrees and 270 degrees to enter the disassembly mode), so that the indicator line 412 on the handle 411 is aligned with the second positioning position X2 (in this embodiment, the handle 41 is preset to be horizontal). Then, the switch 40 control shaft 42 rotates so that the flow hole 421 with the through valve port is parallel and opposite in the same horizontal direction. After the water passage of the filter 100 enters the default bypass mode A2, simply operate the second end of the filter cover 20. The filter bottle 31 of the filter bottle assembly 30 is fitted together with the filter cover 22, so that the second end 22 of the filter cover 20 fits into the supporting flange 314 of the filter bottle 31. At the same time, the pusher 52 stop 521 of the locking part 313 of the filter bottle 31 is pushed into the movable component 51 located in the groove 223 of the second end 22. At this time, the movable component 51 is between the pusher 52 stop 521 and the fastener 53 of the quick release device 50. The filter cover 20 and the filter bottle 31 are in a snap-fit ​​locked state. Finally, the handle 41 of the switching component 40 is rotated to reset, so that the indicator line 412 is oriented towards the first positioning direction X1 (in this embodiment, it is preset to be towards the 12 o'clock direction), thus completing the assembly of the filter bottle 31 and entering the standby state of the water filtration mode A1.

[0037] When filter 100 is in filtration mode A1, please refer to... Figure 2 As shown, it is only necessary to check that the indicator line 412 on the switch 40 handle 41 calibration grip 411 on the filter cover 20 is aligned with the first positioning direction X1 (in this embodiment, it is preset to be the vertical direction). At this time, the flow hole 421 with the through valve port of the switch 40 control shaft 42 is in the same vertical direction as the indicator line 412 of the handle 41 grip 411, so that the water path of the filter 100 enters the water filtration mode A1 and starts water filtration. This allows the water path at the water inlet end of the filter cover 20 to enter through the water inlet channel 211, flow through the flow hole 421 with the through valve port of the control shaft 42, flow through the flow channel through hole 321 to the filter element 60, and then exit through the water outlet end of the water outlet channel 212.

[0038] When filter 100 activates disassembly mode A2, please also refer to... Figure 5 , Figure 6 , Figures 6a to 6d As shown, simply rotate the handle 41 of the switching element 40 to switch to the bypass mode of the water passage (in this embodiment, it is preset to rotate counterclockwise to 90 degrees and 270 degrees to enter the disassembly mode), so that the indicator line 412 on the handle 411 is aligned with the second positioning position X2 (in this embodiment, it is preset that the handle 41 is in a horizontal direction), and then the control shaft 42 of the switching element 40 is turned so that it has a flow hole 4 through the valve port. With the filter bottles 21 parallel to each other in the same horizontal direction, the water path of filter 100 enters the default replacement mode A2. This allows the water at the inlet of filter cover 20 to flow directly from the inlet channel 211 through the outlet channel 212 to the outlet, bypassing filter element 60. Pressing the bottom pressure relief valve 70 releases the pressure inside the bottle, completing the initial pre-removal preparation. Then, simply push filter bottle 31 upwards to its maximum position and quickly pull it downwards, allowing filter bottle 31 to move continuously up and down (see...). Figures 6a to 6d As shown, the fastener 53 located on the locking part 313 of the filter cover 20 presses upward against the movable component 51, pushing the fastener 53 into position above the movable component 51. Once the fastener 53 and the stop part 521 of the pusher 52 are simultaneously above the movable component 51, the filter bottle 31 is quickly pulled downward. This simultaneously causes the stop part 521 of the pusher 52 to press against the fastener 53 downward, disengaging the stop part 521 and the fastener 53 from the movable component 51, thus completing the disassembly of the filter bottle 31. This allows users to quickly disassemble and replace the filter bottle without the need for external disassembly tools, solving the inconvenience of conventional disassembly methods that require tools to be placed on the filter bottle and rotated for disassembly and assembly. It also avoids the risk of leakage or detachment due to improper force application caused by ineffective control of torsional force during disassembly and assembly, achieving a tool-free filter that can be quickly disassembled and assembled.

[0039] However, the above description is only one feasible embodiment of the present invention and should limit the scope of the present invention. That is, all equivalent changes or modifications made in accordance with the features and spirit described in the claims of the present invention are within the scope of the patent of the present invention.

Claims

1. A tool-free filter, characterized in that, include: A filter cover has a first end and a second end that are connected together. The first end is provided with a water inlet and outlet channel that are connected together, and the second end is provided with one or more grooves. A filter bottle assembly includes a filter bottle disposed below a filter cover and detachably assembled with the filter cover. It has a locking portion and a supporting flange on its upper outer side, which abut against a second end. A switching component is provided at the first end of the filter cover. One end is provided with a handle, and the other end is provided with a control shaft with a flow hole that passes through the valve port. The handle and the control shaft move synchronously and rotate in the same direction. A quick-release device includes one or more movable components, a pusher, and a fastener; the movable components are correspondingly provided with the groove at the second end of the filter cap and can be elastically extended into the groove for reciprocating movement; the pusher has a stop and a collar with a fitting portion on its outer side, and a locking portion on its inner side that is locked opposite to the locking portion of the filter bottle; the fastener is slidably provided on the fitting portion on the outer side of the pusher and is spaced apart from the stop; The system utilizes a rotating handle to control a control shaft, switching the water inlet mode between filtration and replacement modes. In filtration mode, the flow port with a through-valve on the control shaft connects to the water channels of the filter element and the filter cover's inlet and outlet, allowing water to flow out. In replacement mode, the flow port with a through-valve on the control shaft connects only to the filter cover's inlet and outlet, enabling water to flow out. This allows the filter bottle to be assembled and disassembled. When the filter bottle is pushed upwards, the pusher engages with the movable component, locking the component between the pusher and the fastener. When the filter bottle is pushed to its maximum height and then quickly pulled down, the up-and-down movement of the filter bottle causes the fastener to move and engage with the movable component, creating an alternating up-and-down offset. The pusher then moves the fastener downwards, disassembling the filter bottle. This design provides a tool-free and highly convenient filter that allows for quick locking and disassembly.

2. The tool-free filter according to claim 1, characterized in that, A fixed bracket can be connected to the rear side of the first end of the filter cover for suspending the filter.

3. The tool-free filter according to claim 1, characterized in that, The filter cover has a larger diameter at the second end than at the first end, and a fitting groove is provided on the outside for a protective sleeve to be fitted in.

4. The tool-free filter according to claim 1, characterized in that, The filter bottle assembly has a first and a second positioning plate that are spaced apart and parallel to each other, forming a first and a second receiving space. The first receiving space is used to lock a filter element, and a pressure relief valve is provided at the bottom and is connected to the second receiving space.

5. The tool-free filter according to claim 1, characterized in that, The filter cap has a pressure rod between the first and second ends, which is opposite to the notch groove on the inner side of the upper opening edge of the filter bottle. The pressure rod is located directly below the switching component, so that when the handle of the switching component is turned, it can be pressed downward to form an auxiliary downward force for disassembly.

6. The tool-free filter according to claim 1, characterized in that, The switching component has a ratchet mechanism with helical teeth on the side away from the handle, which works in conjunction with a lever to form a unidirectional stepping motion and a reverse stop.

7. The tool-free filter according to claim 1, characterized in that, The control shaft of the switching component has a flow hole that passes through the valve port and is positioned in the same horizontal direction as the indicator line of the switching component handle. This allows the flow hole and the indicator line to be vertically aligned, enabling a water filtration mode with a preset first positioning direction. It also allows the flow hole and the indicator line to be horizontally aligned, enabling a replacement mode with a preset second positioning direction.

8. The tool-free filter according to claim 1, characterized in that, The movable components of the quick-release device include a support plate, two springs, and two locking assemblies. The outer side of the support plate has a smooth sheet-like body, and the inner side has a curved surface that corresponds to the curvature of the bottle mouth pusher. The springs are set on both sides of the support plate and are locked in place with the locking assemblies in the groove at the second end of the filter cap. The support plate can reciprocate and extend into the groove under the elastic action of the springs to form an elastic hook action.

9. The tool-free filter according to claim 1, characterized in that, The outer side of the pusher of the quick-release device is provided with an inverted conical surface, the fitting part is provided with a smooth annular surface with a smaller diameter than the stop, and the inner side is provided with a locking part that can be locked relative to the outer locking part of the filter bottle.

10. The tool-free filter according to claim 1, characterized in that, The quick-release device has two opposing oblique conical surfaces on the upper and lower sides of the fastener, allowing the fastener to movably abut against the movable component and to be alternately positioned opposite it.

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