CN218871472U - A convenient renew cartridge device and water purifier for water purifier - Google Patents

Abstract

The utility model discloses a convenient renew cartridge device and water purifier for water purifier belongs to water treatment technical field. The filter element comprises a filter element frame body, a filter element body, a handle and a locking mechanism; an opening is formed in one end of the filter element frame body, and a frame body end face is arranged on the filter element frame body at the opening; the filter element body can be placed in the filter element frame body through the opening on the filter element frame body; the locking mechanism is movably connected with one end of the filter element frame body and comprises a first inclined plane; the locking mechanism includes a first state and a second state. The utility model discloses only need just can realize the unblock of filter core body and ejecting from the filter core framework through rotating the handle, only need insert the filter core body to the filter core framework and can lock the filter core body, can effectively promote the change efficiency and the unblock efficiency of filter core body.

Description

A convenient renew cartridge device and water purifier for water purifier

Technical Field

The utility model belongs to the technical field of water treatment, more specifically say, relate to a convenient renew cartridge device and water purifier for water purifier.

Background

With the continuous improvement of the pursuit of people on the quality of life, the quality requirement on the domestic water is higher and higher, and the water purifier also enters more and more families based on the quality requirement on the domestic water. The water purifier is also called water purifier and water quality purifier, and is water treatment equipment for deeply filtering and purifying water according to the use requirement of water.

The core member of water purifier is the filter core, but along with constantly increasing of filter time and number of times, can adsorb a large amount of dirt on the filter core, when the dirt exceedes a certain amount, the water purifier just can't normally filter quality of water, and the concrete expression is that the filter effect to water worsens, or rivers diminish. At this time, in order to ensure that the water purifier recovers the normal filtering effect, the filter element needs to be replaced with a new one.

However, the conventional filter element replacement is usually carried out manually, and then a new filter element is replaced, so that the operation is inconvenient, and even the filter element installed on the filter element is not butted in place, so that the problem of water leakage during filtering of the filter element is caused, and poor use experience is brought to a user.

Through retrieval, chinese invention patent CN111686500a discloses a filter element assembly replacement structure and water purifier thereof, the filter element assembly replacement structure includes: a filter element assembly, a base for mounting the filter element assembly, a locking mechanism for locking the filter element assembly to the base, an unlocking member for unlocking the locking mechanism; wherein, the filter element component is provided with a stress piece for receiving the force applied by a user; the force-bearing piece is provided with a first position and a second position through action; the force-bearing piece can push the unlocking piece to open the locking mechanism when moving from the first position to the second position; the filter element assembly is insertable toward the base with the force-receiving member in the second position until locked by the locking mechanism. Although this patent enables unlocking or locking of the locking mechanism by rotating the force-receiving member, thereby locking or removing the filter cartridge from the base, such an arrangement still has the following drawbacks: (1) the rotation of the stressed part, namely the handle in the patent only can play a role in driving the locking mechanism to open or close, and cannot promote the filter element to be taken out, and for certain installation modes that the filter element is firmly matched with the base, the filter element can be taken out only by great manpower; (2) an unlocking piece is required to be arranged between the handle and the unlocking mechanism in the patent, the technical scheme of the patent cannot be realized under the condition of lacking the unlocking piece, and the unlocking mode is too complex; (3) the distance between the handle and the unlocking mechanism is long, the transmission path of the power is long and slow, and the filter element is inconvenient to replace in actual operation; (4) the unlocking mechanism has a complex structure and more parts, so that the manufacturing cost and the weight of the whole device are overlarge.

Therefore, there is a need to design a filter element device or a water purifier capable of improving the filter element replacement efficiency and the unlocking efficiency.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

Problem inconvenient, the unblock mode is complicated to water purifier filter core change among the prior art, the utility model provides a convenient renew cartridge device and water purifier for water purifier through structure and the mounting means between rational design handle, filter core framework and the locking mechanism, only needs rotatory handle just can realize the unblock and the function of taking out the filter core to effectively solve the problem that water purifier filter core change is inconvenient among the prior art, the unblock mode is complicated.

2. Technical scheme

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the utility model relates to a convenient filter element replacing device for a water purifier, which comprises a filter element frame body, a filter element body, a handle and a locking mechanism; an opening is formed in one end of the filter element frame body, and a frame body end face is arranged on the filter element frame body at the opening; the filter element body can be placed in the filter element frame body through the opening on the filter element frame body; the locking mechanism is movably connected with one end of the filter element frame body and comprises a first inclined plane; the locking mechanism comprises a first state and a second state, the locking mechanism in the first state allows the filter element body to be inserted into the filter element frame body, and the locking mechanism in the second state can prevent the filter element body from being separated from the filter element frame body; the handle is rotatably connected with one end of the filter element body, and is provided with a jacking surface corresponding to the end surface of the frame body and a second inclined surface corresponding to the first inclined surface; through rotatory handle, the second inclined plane can cooperate with first inclined plane to drive locking mechanism and change to the first state by the second state, the face of liftout simultaneously can cooperate with the framework terminal surface, and is ejecting with the filter core body from the filter core framework.

Preferably, the handle comprises a first position and a second position; when the filter element body is taken out of the filter element frame body, the handle is positioned at a first position and corresponds to a first state of the locking mechanism; when the cartridge body is locked, the handle is in a second position and corresponds to a second state of the locking mechanism.

Preferably, the filter cartridge body is locked by inserting the filter cartridge body into the filter cartridge frame when the handle is in the second position.

Preferably, the locking mechanism comprises a locking block and an elastic piece; one end of the filter element frame body is provided with a slot capable of containing a locking block, and the locking block is arranged in the slot and is connected with the filter element frame body through an elastic piece.

Preferably, the end of the locking block is provided with a transmission part corresponding to the end of the handle, the first inclined plane is arranged on one side, close to the handle, of the transmission part, and the second inclined plane is arranged on one side, close to the transmission part, of the handle.

Preferably, the end of the handle is provided with a driving part, the second inclined surface is arranged on one side of the driving part, and the ejection surface is arranged on the other side opposite to the second inclined surface; in the second state, the driving part is positioned between the transmission part and the end face of the frame body.

Preferably, the handle still includes handheld portion and rotation connecting portion, the both sides of rotating the connecting portion are located respectively to handheld portion and drive division, and the handle rotates with the filter core body through rotating the connecting portion and links to each other.

Preferably, the transmission part is a protrusion extending from the locking block to the handle; the inner side of the driving part is provided with a notch formed by extending the second inclined plane to the driving part, and the notch is matched with the bulge.

Preferably, a yielding gap is arranged between the frame body end face and the driving portion, and the yielding gap is used for providing a rotating space for the driving portion to rotate, so that the driving portion can collide with the frame body end face when rotating to a preset angle.

Preferably, the locking block is provided with a locking bulge corresponding to the filter element body, one side of the locking bulge, which is close to the filter element body, is provided with a locking surface, and the locking surface is matched with the end surface of the filter element body.

Preferably, the locking protrusion is further provided with a third inclined surface, and the third inclined surface is arranged on the other side opposite to the locking surface; in the direction that the locking mechanism moves from the first state to the second state, the third inclined surface extends towards 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.

Preferably, the filter element frame body comprises a pressing plate, and the pressing plate is arranged at the bottom of the slot; one end of the elastic piece is connected with the pressing plate, and the other end of the elastic piece is connected with the locking block.

The utility model discloses a water purifier, including the filter core device, the filter core device does the utility model discloses in a convenient renew cartridge device for water purifier.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses a convenient renew cartridge device for water purifier when needing the renew cartridge, rotates the second inclined plane and the cooperation of first inclined plane that the handle can make the handle, and drive locking mechanism unblock, the liftout face of handle offsets with the framework terminal surface of filter core framework simultaneously, outwards ejecting with the filter core body. Therefore, the filter element device of the utility model can realize the unlocking of the filter element body and the ejection from the filter element frame body only by rotating the handle, thereby facilitating the quick taking-out of the filter element body; in addition, only need insert the filter core body to the filter core framework and can lock the filter core body, the quick locking of the filter core body of being convenient for consequently can effectively promote the replacement efficiency and the unblock efficiency of filter core body.

(2) The utility model discloses a water purifier, through setting up in the water purifier the utility model discloses the filter core device of convenient change can save more core and unblock time of trading, promotes the play water efficiency of water purifier, makes things convenient for personnel to use.

Drawings

Fig. 1 is a schematic diagram i of a convenient filter element replacing device for a water purifier according to the present invention;

FIG. 2 is a schematic view II of a convenient filter element replacing device for a water purifier according to the present invention;

FIG. 3 is a schematic view of a convenient filter element replacement device for a water purifier with a partially concealed filter element frame according to the present invention;

FIG. 4 is a schematic view II of a convenient filter element replacement device for a water purifier with the filter element frame partially hidden according to the present invention;

FIG. 5 is a schematic view of a convenient filter element replacement device for a water purifier with a partially concealed filter element frame according to the present invention;

fig. 6 is a schematic view of the handle of the present invention.

In the figure:

100. a filter element frame body; 101. a frame end face; 102. pressing a plate; 110. inserting slots;

200. a filter element body; 201. extruding surface;

300. a handle; 310. a hand-held portion; 320. a drive section; 321. ejecting the surface; 322. a second inclined plane; 330. a rotation connecting part;

400. a locking block; 410. a locking protrusion; 411. a third inclined plane; 412. a locking surface; 420. a transmission section; 421. a first inclined plane;

500. an elastic member.

Detailed Description

The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced, and in which features of the 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 invention, as claimed, but is presented for purposes of illustration only and not limitation to provide the best mode contemplated for carrying out the invention and to enable any person skilled in the art to practice the invention. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined by the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to illustrate the present state of the art and the meaning of the present development and is not intended to limit the present invention or the present application and the field of application of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present; the terms "one end," "another end," "first," "second," and the like as used herein are for descriptive purposes only.

The present invention will be further described with reference to the following specific embodiments.

Examples

This embodiment provides a water purifier, is equipped with the filter core device that can convenient the change on the water purifier. Specifically, as shown in fig. 1 and 2, the filter element frame 100 is disposed on the water purifier, a cavity for accommodating the filter element body 200 is disposed in the filter element frame 100, the cavity has a shape corresponding to the filter element body 200, an opening is disposed at one end of the filter element frame 100, and a handle 300 rotatably connected to one end of the filter element body 200 is disposed at one end of the filter element body 200, so that an operator can insert or remove the filter element body 200 into or from the cavity from the opening by holding the handle 300. In addition, the filter element frame body 100 is further provided with a locking mechanism, the locking mechanism can lock the filter element body 200 in the filter element frame body 100, and the filter element body 200 can be taken out after the locking mechanism is opened.

In order to solve the problem that the filter cartridge body 200 is difficult to be replaced and unlocked in the prior art, the present embodiment is designed for the structure and connection relationship among the locking mechanism, the filter cartridge frame body 100, the filter cartridge body 200, and the handle 300.

As for the handle 300, as shown in fig. 6, a handle 310, a driving part 320 and a rotation connecting part 330 are provided on the handle 300, wherein the handle 310 and the driving part 320 are respectively provided at two sides of the rotation connecting part 330, and the handle 300 is rotatably connected to the filter cartridge body 200 through the rotation connecting part 330. The driving portion 320 corresponds to an end of the filter element frame 100, the frame end face 101 is disposed at an opening of the filter element frame 100, and the ejecting face 321 is disposed on the driving portion 320 near the frame end face 101, so that the ejecting face 321 can be in contact with and matched with the frame end face 101 by rotating the handle 300. An abdicating gap is arranged between the frame body end face 101 and the driving portion 320, and the abdicating gap is used for providing a rotating space for the driving portion 320 to rotate, so that the driving portion 320 is collided with the frame body end face 101 when rotating to a preset angle. The handle 300 in this embodiment includes a first position and a second position, wherein the second position is shown in the state of the handle 300 in fig. 1-2 and 5, the first position can refer to the state of the handle 300 in fig. 3 and 4, and the handle 300 in the first position forms an angle with the end surface of the cartridge body 200, and the angle is preferably 45-90 degrees. Therefore, when the handle 300 is continuously rotated to change from the second position to the first position, the ejection surface 321 of the driving portion 320 can abut against the frame end surface 101 and eject the filter element body 200, so as to achieve the purpose of quickly taking out the filter element body 200.

The locking mechanism in this embodiment includes a locking block 400 and an elastic member 500, and a spring is preferably used for the elastic member 500. As shown in fig. 4 and 5, one end of the filter element frame 100 is provided with a slot 110 capable of accommodating the locking block 400, the bottom of the slot 110 is provided with a pressing plate 102, the locking block 400 is telescopically arranged in the slot 110 and connected with the pressing plate 102 through an elastic member 500, and the telescopic direction of the locking block is parallel to the end surface of the filter element body 200, i.e. perpendicular to the inserting or taking-out direction of the filter element body 200. Under the elastic force of the spring, the locking block 400 is naturally in a state of being ejected out of the insertion groove 110, which is a second state (refer to fig. 1), and the locking block 400 in this state 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 body 100. The locking block 400 is retracted into the insertion groove 110 by an external force, and the state of the locking block 400 is the first state (see fig. 4), in which the filter cartridge body 200 is not hindered by the locking block 400, and thus can be freely inserted into or removed from the filter cartridge frame 100.

Further, in order to unlock the locking mechanism by the rotation of the handle 300, the two functions of ejecting the filter element body 200 and unlocking the locking mechanism can be realized by the rotation of one time, as shown in fig. 3 and fig. 5 to 6, in this embodiment, a second inclined surface 322 is provided on the handle 300, and the second inclined surface 322 is located on the side opposite to the ejecting surface 321. In addition, as shown in fig. 2 to 5, the two ends of the locking block 400 are provided with transmission portions 420 corresponding to the ends of the handle 300, the transmission portions 420 are provided with first inclined surfaces 421 corresponding to the second inclined surfaces 322, and by rotating the handle 300, the second inclined surfaces 322 can be matched with the first inclined surfaces 421 to drive the locking block 400 to change from the second state to the first state, so as to realize the unlocking function.

Therefore, this embodiment passes through the cooperation between locking mechanism and the filter core body 200, when installation filter core body 200, only need with filter core body 200 along filter core framework 100 push in can, refer to fig. 2, be in first state always promoting filter core body 200 in-process locking piece 400, after filter core body 200 pushed to predetermined position, locking piece 400 truned into the second state, and the locking mechanism who is in the second state locks the filter core body 200 that pushes this moment, in order to restrict filter core body 200 deviates from filter core framework 100, and the installation is very convenient. When the filter element body 200 needs to be replaced, referring to fig. 3 to 4, the handle 300 is directly rotated, the locking block 400 is switched from the second state to the first state by the cooperation between the handle 300 and the locking block 400, at this time, the locking of the filter element body 200 is released, the filter element body 200 is ejected out of the filter element frame body 100, and the filter element body 200 can be directly lifted out of the filter element frame body 100.

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, the state shown in fig. 1-2 and fig. 5, at this time, the second inclined surface 322 on the handle 300 does not abut against the first inclined surface 421 of the locking mechanism, and thus the locking mechanism does not block the locking of the filter element body 200, until the filter element body 200 is inserted to the bottom of the filter element frame 100, the locking block 400 automatically pops out, and the filter element body 200 is automatically locked. In other embodiments, when the filter element body 200 is inserted, the handle 300 may be set to the first position or other positions, and at this time, the second inclined surface 322 may abut against the first inclined surface 421 of the locking mechanism, so that the locking mechanism cannot lock the filter element body 200, and only when the filter element body 200 reaches the bottom of the filter element frame 100, the handle 300 is rotated to the second position, and at this time, the filter element body 200 may also be locked.

In some embodiments, the transmission portion 420 is a protrusion extending from the locking block 400 toward the handle 300, i.e., the protrusion has a length greater than the length of the locking block 400 extending toward the handle 300. The inner side of the driving portion 320 is provided with a notch formed by extending the second inclined plane 322 to the driving portion 320, and the notch is matched with the protrusion. This arrangement can prevent the transmission part 420 from obstructing the rotation of the handle 300 and the movement of the filter cartridge body 200, and does not occupy too much space. It should be noted that the present invention does not limit the specific shape of the protrusion, and as shown in fig. 2 and fig. 3, the protrusion with different shapes can achieve the above function as long as the length of the protrusion is greater than the length of the locking block 400 extending to the handle 300, and the protrusion is provided with the 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, and as shown in fig. 2 and 3, the driving portion 320 with different shapes can achieve the above functions by having the ejecting surface 321 and the second inclined surface 322.

In some preferred embodiments, the locking block 400 is provided with a locking protrusion 410 corresponding to the cartridge body 200, and a locking surface 412 is provided on a side of the locking protrusion 410 adjacent to the cartridge body 200, so that when the locking protrusion 410 is automatically ejected, the locking surface 412 is engaged with an end surface of the cartridge body 200, thereby preventing the cartridge body 200 from being detached. In addition, the locking protrusion 410 is further provided with a third inclined surface 411, the third inclined surface 411 is arranged on the other side opposite to the locking surface 412, in the direction of the locking mechanism moving from the first state to the second state, the third inclined surface 411 extends towards the direction close to the filter element body 200, and the filter element body 200 is provided with a squeezing surface 201 corresponding to the third inclined surface 411. Therefore, when the filter element body 200 is inserted, the pressing surface 201 on the filter element body 200 can be matched with the third inclined surface 411, and the locking protrusion 410 is pushed to retract into the slot 110 along with the insertion of the filter element body 200, so that the locking mechanism can be conveniently opened, and the filter element body 200 is ejected and locked after completely entering the filter element frame body 100.

It should be noted that the inclination angle of the third inclined surface 411 may be between 0 to 90 degrees, and the state of the locking mechanism is changed by the sliding fit between the third inclined surface 411 and the pressing surface 201, so that a step of unlocking in the process of inserting the filter element body 200 is omitted. In addition, the locking protrusion 410 may be an integral structure, or may be composed of a plurality of locking protrusions 410 with predetermined intervals, and a gap is reserved between adjacent locking protrusions 410, so that a water gap of the filter element body 200 can pass through the gap, and the filter element body 200 can be kept to occupy a smaller space.

The invention has been described in detail hereinabove with reference to specific exemplary embodiments thereof. However, it should be understood that various modifications and changes may be made without departing from the scope of the invention as defined by the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to illustrate the present state of the art and the meaning of the present development and is not intended to limit the present invention or the present application and the field of application of the present invention.

More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments having modifications, omissions, combinations of the various embodiments, adaptations and/or alterations as would be appreciated by those in the art based on the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims (13)

1. A convenient filter element replacing device for a water purifier is characterized by comprising a filter element frame body (100), a filter element body (200), a handle (300) and a locking mechanism;

one end of the filter element frame body (100) is provided with an opening, and a frame body end face (101) is arranged on the filter element frame body (100) at the opening;

the filter element body (200) can be placed in the filter element frame body (100) through an opening on the filter element frame body (100);

the locking mechanism is movably connected with one end of the filter element frame body (100) and comprises a first inclined surface (421); the locking mechanism comprises a first state and a second state, the locking mechanism in the first state allows the filter element body (200) to be inserted into the filter element frame body (100), and the locking mechanism in the second state can prevent the filter element body (200) from being separated from the filter element frame body (100);

the handle (300) is rotatably connected with one end of the filter element body (200), and the handle (300) is provided with an ejection surface (321) corresponding to the end surface (101) of the frame body and a second inclined surface (322) corresponding to the first inclined surface (421); through rotating the handle (300), the second inclined surface (322) can be matched with the first inclined surface (421) and drive the locking mechanism to be changed from the second state to the first state, and meanwhile, the ejection surface (321) can be matched with the frame end surface (101) and eject the filter element body (200) out of the filter element frame body (100).

2. The easy refill device for a water purifier according to claim 1, wherein said handle (300) comprises a first position and a second position; when the filter element body (200) is taken out of the filter element frame body (100), the handle (300) is at a first position and corresponds to a first state of the locking mechanism; when the cartridge body (200) is locked, the handle (300) is in a second position and corresponds to a second state of the locking mechanism.

3. The easy-to-replace filter cartridge device for a water purifier as recited in claim 2, wherein the filter cartridge body (200) is locked by inserting the filter cartridge body (200) into the filter cartridge frame (100) when the handle (300) is at the second position.

4. The easy refill device for a water purifier according to claim 1, wherein the locking mechanism comprises a locking block (400) and an elastic member (500); one end of the filter element frame body (100) is provided with a slot (110) capable of accommodating a locking block (400), and the locking block (400) is arranged in the slot (110) and is connected with the filter element frame body (100) through an elastic piece (500).

5. The easy filter element replacing device for a water purifier according to claim 4, wherein 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 the transmission part (420) on the side close to the handle (300), and the second inclined surface (322) is provided on the handle (300) on the side close to the transmission part (420).

6. The easy filter element-replacing device for a water purifier according to claim 5, wherein the end of the handle (300) is provided with a driving part (320), the second inclined surface (322) is provided at one side of the driving part (320), and the ejection surface (321) is provided at the other side opposite to the second inclined surface (322); in the second state, the driving part (320) is positioned between the transmission part (420) and the frame body end surface (101).

7. The convenient filter element replacing device for the water purifier as recited in claim 6, wherein the handle (300) further comprises a hand-held portion (310) and a rotation connecting portion (330), the hand-held portion (310) and the driving portion (320) are respectively disposed at both sides of the rotation connecting portion (330), and the handle (300) is rotatably connected with the filter element body (200) through the rotation connecting portion (330).

8. The easy filter cartridge replacement device for a water purifier as recited in claim 6, wherein the transmission part (420) is a protrusion extended from the locking block (400) toward the handle (300); the inner side of the driving part (320) is provided with a notch formed by extending the second inclined plane (322) to the driving part (320), and the notch is matched with the protrusion.

9. The convenient filter element replacing device for the water purifier according to claim 6, wherein a yielding gap is formed between the frame body end surface (101) and the driving portion (320), and the yielding gap is used for providing a rotating space for the driving portion (320) to rotate, so that the driving portion (320) is interfered with the frame body end surface (101) when rotating to a predetermined angle.

10. The device for conveniently replacing the filter element of the water purifier as claimed in claim 4, wherein the locking block (400) is provided with a locking protrusion (410) corresponding to the filter element body (200), one side of the locking protrusion (410) close to the filter element body (200) is provided with a locking surface (412), and the locking surface (412) is matched with the end surface of the filter element body (200).

11. The easy filter cartridge replacement device for a water purifier as recited in claim 10, wherein the locking protrusion (410) is further provided with a third inclined surface (411), and the third inclined surface (411) is provided at the other side opposite to the locking surface (412); in the direction that the locking mechanism moves from the first state to the second state, the third inclined surface (411) extends towards the direction close to the filter element body (200); the filter element body (200) is provided with a squeezing surface (201) corresponding to the third inclined surface (411).

12. The filter cartridge replacement device for a water purifier as claimed in any one of claims 4 to 11, wherein the filter cartridge frame (100) comprises a pressing plate (102), the pressing plate (102) is disposed at the bottom of the insertion groove (110); one end of the elastic piece (500) is connected with the pressure plate (102), and the other end is connected with the locking block (400).

13. A water purifier comprising a filter element assembly, wherein the filter element assembly is the easy-to-replace filter element assembly for a water purifier as claimed in any one of claims 1 to 12.

Images