Convenient filter element replacement device for water purifier and water purifier

Abstract

The present invention discloses a convenient filter cartridge replacement device for a water purifier and a water purifier, belonging to the field of water treatment technology. It comprises a filter cartridge frame, a filter cartridge body, a handle, and a locking mechanism; one end of the filter cartridge frame is provided with an opening, and the filter cartridge frame at the opening is provided with a frame end face; the filter cartridge body can be placed in the filter cartridge frame through the opening on the filter cartridge frame; the locking mechanism is movably connected to one end of the filter cartridge frame, and the locking mechanism includes a first inclined surface; the locking mechanism includes a first state and a second state. The present invention can unlock the filter cartridge body and eject it from the filter cartridge frame simply by turning the handle, and can lock the filter cartridge body by simply inserting the filter cartridge body into the filter cartridge frame, which can effectively improve the replacement efficiency and unlocking efficiency of the filter cartridge body.

Description

Technical Field

[0001] The present invention belongs to the technical field of water treatment, and more particularly relates to a convenient filter element replacement device for a water purifier and the water purifier. Background Art

[0002] As people's pursuit of a better quality of life continues to improve, their requirements for the quality of domestic water are also getting higher and higher. Based on this, water purifiers have entered more and more households. Water purifiers, also known as water purifiers or water purifiers, are water treatment equipment that deeply filters and purifies water according to the requirements of water use.

[0003] The core component of a water purifier is the filter element. However, as the filtration time and frequency increase, a large amount of dirt will be absorbed by the filter element. When the dirt exceeds a certain amount, the water purifier will not be able to filter the water properly, which will be manifested as a decrease in the filtration effect or a decrease in water flow. In this case, in order to restore the water purifier to normal filtration effect, a new filter element needs to be replaced.

[0004] However, the existing filter element replacement is usually manually disassembled and then replaced with a new filter element, which is inconvenient to operate. What's worse, the installed filter element may leak because it is not properly docked, which brings a poor user experience.

[0005] After searching, Chinese invention patent CN111686500A discloses a filter element assembly replacement structure and a water purifier thereof, the filter element assembly replacement structure includes: a filter element assembly, a base for installing the filter element assembly, a locking mechanism for locking the filter element assembly on the base, and an unlocking member for opening the locking mechanism; wherein, the filter element assembly is provided with a force-bearing member for receiving force applied by the user; the force-bearing member has a first position and a second position through action; when the force-bearing member moves from the first position to the second position, it can push the unlocking member to open the locking mechanism; the filter element assembly can be inserted into the base when the force-bearing member is in the second position until it is locked by the locking mechanism. Although this patent can unlock or lock the locking mechanism by rotating the force-bearing member, thereby locking the filter element on the base or removing the filter element, such a setting still has the following defects: ① The force-bearing member in this patent is the handle, and its rotation can only drive the locking mechanism to open or close, and cannot promote the removal of the filter element. For some filter elements and bases with a more secure installation method, a lot of manpower is required to remove the filter element; ② An unlocking member is also required between the handle and the unlocking mechanism in this patent. In the absence of the unlocking member, the technical solution of this patent cannot be implemented, and the unlocking method is too complicated; ③ The distance between the handle and the unlocking mechanism is long, and the power transmission path is long and slow, which is not convenient for filter element replacement in actual operation; ④ The unlocking mechanism itself has a relatively complex structure and many parts, which makes the manufacturing cost and weight of the entire device too high.

[0006] Therefore, there is an urgent need to design a filter element device or water purifier that can improve the filter element replacement efficiency and unlocking efficiency. Summary of the Invention

[0007] 1. Problem to be solved

[0008] In response to the problems of inconvenient replacement of water purifier filter cartridges and complicated unlocking methods in the prior art, the present invention provides a convenient filter cartridge replacement device and a water purifier for a water purifier. By rationally designing the structure and installation method between the handle, the filter cartridge frame and the locking mechanism, the functions of unlocking and removing the filter cartridge can be achieved by simply rotating the handle, thereby effectively solving the problems of inconvenient replacement of water purifier filter cartridges and complicated unlocking methods in the prior art.

[0009] 2. Technical solution

[0010] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0011] The filter cartridge of claim 1, wherein the filter cartridge is adapted to be replaced by a filter element and the filter element is adapted to be replaced by a filter element.

[0012] Preferably, the handle includes a first position and a second position; when the filter element body is removed from the filter element frame, the handle is in the first position and corresponds to the first state of the locking mechanism; when the filter element body is locked, the handle is in the second position and corresponds to the second state of the locking mechanism.

[0013] Preferably, when the handle is in the second position, the filter element body can be locked by inserting the filter element body into the filter element frame.

[0014] Preferably, the locking mechanism includes a locking block and an elastic member; one end of the filter element frame is provided with a slot for accommodating the locking block, and the locking block is arranged in the slot and connected to the filter element frame through the elastic member.

[0015] Preferably, the end of the locking block is provided with a transmission part corresponding to the end of the handle, the first inclined surface is provided on the side of the transmission part close to the handle, and the second inclined surface is provided on the side of the handle close to the transmission part.

[0016] Preferably, a driving part is provided at the end of the handle, the second inclined surface is provided on one side of the driving part, and the ejection surface is provided on the other side opposite to the second inclined surface; in the second state, the driving part is located between the transmission part and the end surface of the frame.

[0017] Preferably, the handle further comprises a hand-holding portion and a rotating connection portion, wherein the hand-holding portion and the driving portion are respectively arranged on both sides of the rotating connection portion, and the handle is rotatably connected to the filter element body through the rotating connection portion.

[0018] Preferably, the transmission part is a protrusion extending from the locking block toward the handle; a notch is provided on the inner side of the driving part and is formed by the second inclined surface extending toward the driving part, and the notch cooperates with the protrusion.

[0019] Preferably, a clearance gap is provided between the end surface of the frame and the driving part, and the clearance gap is used to provide a rotation space for the driving part to rotate, so that the driving part contacts the end surface of the frame when it rotates to a predetermined angle.

[0020] Preferably, the locking block is provided with a locking protrusion corresponding to the filter element body, and a locking surface is provided on the side of the locking protrusion close to the filter element body, and the locking surface cooperates with the end face of the filter element body.

[0021] Preferably, the locking protrusion is also provided with a third inclined surface, which is arranged on the other side opposite to the locking surface; in the direction of movement of the locking mechanism from the first state to the second state, the third inclined surface extends in the direction close to the filter element body; and the filter element body is provided with an extrusion surface corresponding to the third inclined surface.

[0022] Preferably, the filter element frame includes a pressing plate, which is arranged at the bottom of the slot; one end of the elastic member is connected to the pressing plate, and the other end is connected to the locking block.

[0023] A water purifier of the present invention comprises a filter element device, wherein the filter element device is a convenient filter element replacement device for a water purifier as described in the present invention.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The present invention provides a convenient filter cartridge replacement device for a water purifier. When the filter cartridge needs to be replaced, the second inclined surface of the handle can be rotated to cooperate with the first inclined surface, driving the locking mechanism to unlock. At the same time, the ejection surface of the handle abuts against the end surface of the filter cartridge frame, ejecting the filter cartridge body outward. Therefore, the filter cartridge device of the present invention can unlock the filter cartridge body and eject it from the filter cartridge frame simply by rotating the handle, facilitating the rapid removal of the filter cartridge body. In addition, the filter cartridge body can be locked by simply inserting the filter cartridge body into the filter cartridge frame, facilitating the rapid locking of the filter cartridge body, thereby effectively improving the replacement efficiency and unlocking efficiency of the filter cartridge body.

[0027] (2) A water purifier of the present invention can save more time for changing the filter element and unlocking the filter element by arranging the filter element device of the present invention in the water purifier, thereby improving the water output efficiency of the water purifier and making it convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A convenient filter element replacement device for a water purifier according to the present invention Figure I ;

[0029] Figure 2 A convenient filter element replacement device for a water purifier according to the present invention Figure II ;

[0030] Figure 3 Schematic diagram of a convenient filter element replacement device for a water purifier with the filter element frame partially hidden. Figure I ;

[0031] Figure 4 Schematic diagram of a convenient filter element replacement device for a water purifier with the filter element frame partially hidden. Figure II ;

[0032] Figure 5 Schematic diagram of a convenient filter element replacement device for a water purifier with the filter element frame partially hidden. Figure III ;

[0033] Figure 6 Schematic diagram of the handle of the present invention.

[0034] In the picture:

[0035] 100, filter element frame; 101, frame end face; 102, pressure plate; 110, slot;

[0036] 200, filter element body; 201, extrusion surface;

[0037] 300, handle; 310, gripping portion; 320, driving portion; 321, ejection surface; 322, second inclined surface; 330, rotating connection portion;

[0038] 400, locking block; 410, locking protrusion; 411, third inclined surface; 412, locking surface; 420, transmission part; 421, first inclined surface;

[0039] 500. Elastic parts. DETAILED DESCRIPTION

[0040] The following detailed description of exemplary embodiments of the present invention refers to the accompanying drawings, which form a part of the description, and in which exemplary embodiments of the present invention are shown as examples, wherein the features of the present invention are identified by reference numerals. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, so as to propose the best way to perform the present invention and to enable those skilled in the art to implement the present invention. However, it should be understood that various modifications and variations can be made without departing from the scope of the present invention as defined by the appended claims. The detailed description and drawings should be considered only as illustrative, not restrictive, and if any such modifications and variations exist, they will fall within the scope of the invention described herein. In addition, the background technology is intended to illustrate the current status and significance of the research and development of the present technology and is not intended to limit the present invention or the application field of the present invention or the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs; the terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] It should be noted that, when an element is referred to as being "provided on" another element, it may be directly on the other element or there may also be an intermediate element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an intermediate element; the terms "one end", "the other end", "first", "second" and similar expressions used herein are for illustrative purposes only.

[0043] The present invention will be further described below with reference to specific embodiments.

[0044] Example

[0045] This embodiment provides a water purifier, which is provided with a filter element device that can be easily replaced. Figure 1 and Figure 2 As shown, the water purifier is provided with a filter cartridge frame 100, and a chamber is provided inside the filter cartridge frame 100 to accommodate the filter cartridge body 200. The shape of the chamber corresponds to the filter cartridge body 200. One end of the filter cartridge frame 100 is provided with an opening, and one end of the filter cartridge body 200 is provided with a handle 300 rotatably connected thereto, so that the operator can hold the handle 300 to insert or remove the filter cartridge body 200 from the opening into the chamber. In addition, the filter cartridge frame 100 is also provided with a locking mechanism, which can lock the filter cartridge body 200 in the filter cartridge frame 100. After opening the locking mechanism, the filter cartridge body 200 can be removed.

[0046] In order to solve the problem in the prior art that the filter element body 200 is difficult to quickly replace and unlock, this embodiment designs the structure and connection relationship between the locking mechanism, the filter element frame 100, the filter element body 200 and the handle 300.

[0047] For the handle 300, if Figure 6As shown, the handle 300 is provided with a hand-holding portion 310, a driving portion 320 and a rotating connection portion 330, wherein the hand-holding portion 310 and the driving portion 320 are respectively provided on both sides of the rotating connection portion 330, and the handle 300 is rotatably connected to the filter element body 200 through the rotating connection portion 330. The driving portion 320 corresponds to the end of the filter element frame 100, and the opening of the filter element frame 100 is provided with a frame end face 101, and the driving portion 320 is provided with an ejection surface 321 on the side close to the frame end face 101, and the ejection surface 321 can be brought into contact and cooperation with the frame end face 101 by rotating the handle 300. A clearance is provided between the frame end face 101 and the driving portion 320, and the clearance is used to provide a rotation space for the driving portion 320 to rotate, so that when the driving portion 320 rotates to a predetermined angle, it conflicts with the frame end face 101. The handle 300 in this embodiment includes a first position and a second position, wherein the second position is as shown in FIG. Figures 1-2 and Figure 5 The state of the middle handle 300 is shown, the first position can be referred to Figure 3 and Figure 4 In the middle handle 300 state, in the first position, there is a certain angle between the handle 300 and the end surface of the filter element body 200, preferably between 45 and 90 degrees. Therefore, when the handle 300 is continuously rotated from the second position to the first position, the ejection surface 321 on the driving portion 320 can abut against the frame end surface 101 and eject the filter element body 200, achieving the purpose of quickly removing the filter element body 200.

[0048] The locking mechanism in this embodiment includes a locking block 400 and an elastic member 500, and the elastic member 500 is preferably a spring. Figure 4 and Figure 5 As shown, one end of the filter element frame 100 is provided with a slot 110 for accommodating the locking block 400, and a pressure plate 102 is provided at the bottom of the slot 110. The locking block 400 is retractably arranged in the slot 110 and connected to the pressure plate 102 through an elastic member 500. Its retractable direction is parallel to the end face of the filter element body 200, that is, perpendicular to the insertion or removal direction of the filter element body 200. Under the elastic force of the spring, the locking block 400 is naturally in a state of popping out of the slot 110, which is the second state (refer to Figure 1 ), in this state, the locking block 400 is located on the end surface of the filter element body 200, thereby preventing the filter element body 200 from being separated from the filter element frame 100. Under the action of external force, the locking block 400 can be retracted into the slot 110. At this time, the state of the locking block 400 is the first state (refer to Figure 4 ), in this state, the filter element body 200 is no longer hindered by the locking block 400, and can therefore be freely inserted into or removed from the filter element frame 100.

[0049] Furthermore, in order to enable the rotation of the handle 300 to unlock the locking mechanism, the filter element body 200 can be ejected and the locking mechanism can be unlocked by a one-time rotation. Figure 3 and Figures 5-6 As shown, in this embodiment, a second inclined surface 322 is provided on the handle 300, and the second inclined surface 322 is located on a side opposite to the ejection surface 321. Figures 2 to 5 As shown, transmission parts 420 corresponding to the ends of the handle 300 are provided at both ends of the locking block 400, and a first inclined surface 421 corresponding to the second inclined surface 322 is provided on the transmission part 420. By rotating the handle 300, the second inclined surface 322 can cooperate with the first inclined surface 421 and drive the locking block 400 to change from the second state to the first state, thereby realizing the unlocking function.

[0050] Therefore, in this embodiment, through the cooperation between the locking mechanism and the filter element body 200, when installing the filter element body 200, it is only necessary to push the filter element body 200 along the filter element frame 100. Figure 2 In the process of pushing the filter element body 200, the locking block 400 is always in the first state. After the filter element body 200 is pushed to the predetermined position, the locking block 400 is turned to the second state. The locking mechanism in the second state locks the pushed filter element body 200 to prevent the filter element body 200 from escaping from the filter element frame 100, making the installation process very convenient. When the filter element body 200 needs to be replaced, refer to Figures 3-4 By directly rotating the handle 300, the locking block 400 is turned from the second state to the first state by utilizing the cooperation between the handle 300 and the locking block 400. At this time, the lock of the filter element body 200 is released, and the filter element body 200 is pushed out of the filter element frame 100, and the filter element body 200 can be directly lifted out of the filter element frame 100.

[0051] It should be noted that when the filter element body 200 is inserted, the handle 300 is preferably set to the second position, that is, Figures 1-2 and Figure 5 In the state shown in , the second inclined surface 322 on the handle 300 will not abut against the first inclined surface 421 of the locking mechanism, and will not hinder the locking mechanism from locking the filter cartridge body 200. When the filter cartridge body 200 is inserted to the bottom of the filter cartridge frame 100, the locking block 400 will automatically pop out and automatically lock the filter cartridge body 200. In other embodiments, when the filter cartridge body 200 is inserted, the handle 300 can also be set to the first position or other positions. At this time, the second inclined surface 322 will abut against the first inclined surface 421 of the locking mechanism, and the locking mechanism will not be able to lock the filter cartridge body 200. It is only necessary to rotate the handle 300 to the second position when the filter cartridge body 200 reaches the bottom of the filter cartridge frame 100, and the filter cartridge body 200 can also be locked at this time.

[0052] In some embodiments, the transmission portion 420 is a protrusion extending from the locking block 400 to the handle 300, that is, the length of the protrusion is greater than the length of the locking block 400 extending to the handle 300. A notch is provided on the inner side of the driving portion 320, which is formed by the second inclined surface 322 extending toward the driving portion 320, and the notch cooperates with the protrusion. This arrangement can prevent the transmission portion 420 from obstructing the rotation of the handle 300 and the movement of the filter element body 200, and will not take up too much space. It should be noted that the present invention does not limit the specific shape of this protrusion, such as Figure 2 and Figure 3 As shown, the protrusions of different shapes can achieve the above functions as long as the length of the protrusion is greater than the length of the locking block 400 extending toward the handle 300 and the protrusion is provided with a first inclined surface 421 corresponding to the second inclined surface 322. Similarly, the present invention does not limit the shape of the driving portion 320. Figure 2 and Figure 3 The driving parts 320 of different shapes are shown, and the above functions can be achieved as long as they have the ejection surface 321 and the second inclined surface 322 .

[0053] In some preferred embodiments, the locking block 400 is provided with a locking protrusion 410 corresponding to the filter cartridge body 200. A locking surface 412 is provided on the side of the locking protrusion 410 close to the filter cartridge body 200. When the locking protrusion 410 automatically pops out, the locking surface 412 cooperates with the end surface of the filter cartridge body 200, thereby preventing the filter cartridge body 200 from being detached. In addition, the locking protrusion 410 is further provided with a third inclined surface 411, which is provided on the other side opposite to the locking surface 412. In the direction in which the locking mechanism moves from the first state to the second state, the third inclined surface 411 extends in a direction close to the filter cartridge body 200. The filter cartridge body 200 is provided with an extrusion surface 201 corresponding to the third inclined surface 411. Therefore, when the filter element body 200 is inserted, the extrusion surface 201 on the filter element body 200 can cooperate with the third inclined surface 411, and as the filter element body 200 is inserted, the locking protrusion 410 is pushed into the slot 110 to facilitate the opening of the locking mechanism, until the filter element body 200 completely enters the filter element frame 100 and then pops out and locks.

[0054] It should be noted that the inclination angle of the third inclined surface 411 can be between 0 and 90 degrees. The sliding fit between the third inclined surface 411 and the extrusion surface 201 changes the state of the locking mechanism, eliminating the need for unlocking during the insertion of the filter element body 200. In addition, the locking protrusion 410 can be a monolithic structure or can be composed of multiple locking protrusions 410 at predetermined intervals. Gaps are reserved between adjacent locking protrusions 410 to facilitate the passage of the water outlet of the filter element body 200, thereby keeping the overall space occupied by the filter element body 200 smaller.

[0055] The present invention has been described in detail above with reference to specific exemplary embodiments. However, it should be understood that various modifications and variations may be made without departing from the scope of the present invention as defined by the appended claims. The detailed description and accompanying drawings should be considered merely illustrative and not restrictive, and any such modifications and variations, if any, are intended to fall within the scope of the present invention as described herein. In addition, the background art is intended to illustrate the current status and significance of the present technology and is not intended to limit the present invention or the application and fields of application of the present invention.

[0056] More specifically, although exemplary embodiments of the present invention have been described herein, the present invention is not limited to these embodiments, but rather includes any and all embodiments that may be recognized by those skilled in the art based on the foregoing detailed description, such as combinations between the various embodiments, adaptations, and / or substitutions. The limitations in the claims are to be interpreted broadly based on the language used in the claims and are not limited to the examples described in the foregoing detailed description or during the prosecution of this application, which examples should be considered non-exclusive. Any steps recited in any method or process claim may be performed in any order and are not limited to the order set forth in the claims. Therefore, the scope of the invention should be determined solely by the appended claims and their legal equivalents, rather than by the description and examples given above.

Claims

1. A convenient filter element replacement device for a water purifier, characterized in that: It comprises a filter element frame (100), a filter element body (200), a handle (300) and a locking mechanism; An opening is provided at one end of the filter element frame (100), and a frame end surface (101) is provided on the filter element frame (100) at the opening; the filter element body (200) can be placed in the filter element frame (100) through the opening on the filter element frame (100); The locking mechanism is movably connected to one end of the filter element frame (100), and the locking mechanism includes a first inclined surface (421); the locking mechanism includes a first state and a second state, wherein the locking mechanism in the first state allows the filter element body (200) to be inserted into the filter element frame (100), and the locking mechanism in the second state can prevent the filter element body (200) from being separated from the filter element frame (100); The handle (300) is rotatably connected to one end of the filter element body (200), and the handle (300) is provided with an ejection surface (321) corresponding to the frame end surface (101) and a second inclined surface (322) corresponding to the first inclined surface (421); by rotating the handle (300), the second inclined surface (322) can cooperate with the first inclined surface (421) and drive the locking mechanism to change from the second state to the first state, and at the same time, the ejection surface (321) can cooperate with the frame end surface (101) and eject the filter element body (200) from the filter element frame (100); The locking mechanism comprises a locking block (400) and an elastic member (500); a slot (110) capable of accommodating the locking block (400) is provided at one end of the filter element frame (100); the locking block (400) is disposed in the slot (110) and connected to the filter element frame (100) via the elastic member (500); The end of the locking block (400) is provided with a transmission part (420) corresponding to the end of the handle (300), the first inclined surface (421) is provided on a side of the transmission part (420) close to the handle (300), and the second inclined surface (322) is provided on a side of the handle (300) close to the transmission part (420); The end of the handle (300) is provided with a driving portion (320), a second inclined surface (322) is provided on one side of the driving portion (320), and a protruding surface (321) is provided on the other side opposite to the second inclined surface (322); in the second state, the driving portion (320) is located between the transmission portion (420) and the end surface (101) of the frame; The transmission part (420) is a protrusion extending from the locking block (400) toward the handle (300); a notch is provided on the inner side of the driving part (320) and is formed by the second inclined surface (322) extending toward the driving part (320), and the notch cooperates with the protrusion; A clearance gap is provided between the frame end surface (101) and the driving portion (320), and the clearance gap is used to provide a rotation space for the driving portion (320) to rotate, so that the driving portion (320) does not come into contact with the frame end surface (101) when it rotates to a predetermined angle.

2. A convenient filter element replacement device for a water purifier according to claim 1, characterized in that: The handle (300) includes a first position and a second position; when the filter element body (200) is taken out of the filter element frame (100), the handle (300) is in the first position and corresponds to the first state of the locking mechanism; when the filter element body (200) is locked, the handle (300) is in the second position and corresponds to the second state of the locking mechanism.

3. The convenient filter element replacement device for a water purifier according to claim 2, characterized in that: When the handle (300) is in the second position, the filter element body (200) can be locked by inserting the filter element body (200) into the filter element frame (100).

4. The convenient filter element replacement device for a water purifier according to claim 1, characterized in that: The handle (300) further comprises a hand-held portion (310) and a rotating connection portion (330), wherein the hand-held portion (310) and the driving portion (320) are respectively arranged on both sides of the rotating connection portion (330), and the handle (300) is rotatably connected to the filter element body (200) via the rotating connection portion (330).

5. The convenient filter element replacement device for a water purifier according to claim 1, characterized in that: The locking block (400) is provided with a locking protrusion (410) corresponding to the filter element body (200), and a locking surface (412) is provided on the side of the locking protrusion (410) close to the filter element body (200), and the locking surface (412) is matched with the end surface of the filter element body (200).

6. The convenient filter element replacement device for a water purifier according to claim 5, characterized in that: The locking protrusion (410) is further provided with a third inclined surface (411), which is provided on the other side opposite to the locking surface (412); in the direction in which the locking mechanism moves from the first state to the second state, the third inclined surface (411) extends in a direction close to the filter element body (200); and the filter element body (200) is provided with an extrusion surface (201) corresponding to the third inclined surface (411).

7. A convenient filter element replacement device for a water purifier according to any one of claims 1 to 6, characterized in that: The filter element frame (100) includes a pressing plate (102), which is arranged at the bottom of the slot (110); one end of the elastic member (500) is connected to the pressing plate (102), and the other end is connected to the locking block (400).

8. A water purifier, comprising a filter element device, wherein the filter element device is a convenient filter element replacement device for a water purifier according to any one of claims 1 to 7.

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