CN113929164B

CN113929164B - Filter element quick-changing mechanism and water purifier

Info

Publication number: CN113929164B
Application number: CN202010611181.7A
Authority: CN
Inventors: 何明
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2023-09-15
Anticipated expiration: 2040-06-29
Also published as: CN113929164A

Abstract

The invention provides a filter element quick-change mechanism and a water purifier, the filter element quick-change mechanism comprises a bracket (1) and a lock catch (2), a lock catch elastic resetting device (22) is arranged between the bracket (1) and the lock catch (2), one end of the lock catch (2) is provided with a lock catch locking part (21), the lock catch locking part (21) is provided with a first position and a second position, and the lock catch locking part (21) can be driven to the first position under the action of external force and can be reset to the second position through the elastic force of the lock catch elastic resetting device (22). The quick-change mechanism for the filter element can tightly grasp the filter element by the lock catch locking part when the water purifier is normally used, so that the filter element is not separated, when the service life of the filter element is over, the filter element can be quickly taken out by separating the lock catch locking part from the filter element, and then a new filter element can be directly pushed in to fasten the new filter element, thereby achieving the aim of easily and conveniently changing the filter element.

Description

Filter element quick-changing mechanism and water purifier

Technical Field

The invention relates to a filter element, in particular to a filter element quick-changing mechanism. In addition, the invention also relates to a water purifier comprising the filter element quick-change mechanism.

Background

The water purifier takes tap water as water inlet, and can obtain drinking water through filtering by different filter elements. The drinking water of the water purifier reaches the purified water level and can be directly drunk. Domestic water of water purifiers in the market is generally filtered by various filter cores, such as a PP cotton filter core, an active carbon filter core, an ultrafiltration membrane filter core, a reverse osmosis membrane filter core or a composite filter core with the same function.

However, after the filter element of the water purifier is used for a period of time, the filter element needs to be replaced to ensure the filtering effect of the water purifier. For example, the PP cotton filter core plays a role in filtering large-particle impurities such as sediment and colloid, and after a period of use, the filter core has accumulated a large amount of sediment, extremely influences the filtering effect, reduces the service efficiency of the following filter core, so that the filter core must be replaced in time. The replacement period recommended by the manufacturer is 6 to 12 months, and the filter element needs to be replaced in 3 months in some areas with poor water quality. Therefore, filter element replacement is a function that must be considered in the design and use of the water purifier.

The existing water purifier is generally installed by the after-sales personnel to get on the door, and the after-sales personnel is required to get on the door to replace when the filter element is replaced. As shown in fig. 27: the front three-stage filtration of the water purifier consists of a filter bottle cap 1', a filter bottle 2' and a filter element 3', wherein the filter bottle 2' is connected with the filter bottle cap 1' through threads, when the filter element is replaced, a special spanner is required to be used for disassembling and screwing the filter bottle 2', the old filter element 3' is taken out, a new filter element 3' is placed, and the filter bottle 2' is screwed by the special spanner. The operation can only be carried out by special personnel, so that the use cost of a user is increased, the operation is complex, and the time cost is increased.

Disclosure of Invention

The technical problem to be solved by the first aspect of the present invention is to provide a filter element quick-changing mechanism, which can conveniently and effectively lock a filter element and release and change the filter element.

The technical problem to be solved by the second aspect of the invention is to provide a water purifier, and the filter element quick-changing mechanism of the water purifier can conveniently and effectively lock the filter element and release and change the filter element.

In order to solve the technical problem, a first aspect of the present invention provides a quick-change mechanism for a filter element, which comprises a bracket and a lock catch movably mounted on the bracket, wherein a lock catch elastic resetting device is arranged between the bracket and the lock catch, one end of the lock catch is provided with a lock catch locking part, the lock catch locking part has a first position and a second position relative to the bracket, and the lock catch locking part can be driven to the first position against the elasticity of the lock catch elastic resetting device under the action of external force and can be reset to the second position through the elasticity of the lock catch elastic resetting device.

Preferably, the other end of the lock catch opposite to the lock catch locking part is hinged on the bracket.

Specifically, a lock catch driving part is arranged on the side surface of one end, close to the lock catch locking part, of the lock catch; the support is provided with a push rod along the length direction of the lock catch, a driving contact surface of the push rod is in contact with the lock catch driving part, and the driving contact surface is an inclined surface, so that the lock catch driving part can be jacked up by the inclined surface under the driving of the push rod, and further the lock catch locking part can be driven to rotate towards the first position close to the support.

Further preferably, a lock catch limiting part is arranged on the other side, opposite to the side where the lock catch driving part is arranged, of the lock catch.

Further specifically, a sliding shaft is fixed on the push rod, and a sliding hole of the sliding shaft is arranged on the support.

Preferably, a push rod elastic reset device is arranged between the support and the push rod or the sliding shaft.

Preferably, the bracket comprises a supporting part and mounting parts positioned at two sides of the supporting part, and the lock catch is connected to the supporting part.

Specifically, a push rod along the length direction of the lock catch is arranged on one of the mounting parts.

Further, the filter element quick-change mechanism further comprises a shell, and the bracket is arranged on the outer wall of one end of the shell.

The second aspect of the invention provides a water purifier, which comprises the filter element quick-changing mechanism.

Through the technical scheme, the invention has the following beneficial effects:

1. the quick-change mechanism for the filter element can tightly grasp the filter element in normal use or normal operation of the water purifier, so that the filter element is not separated, all water flows are guaranteed to be filtered through the filter element, when the service life of the filter element expires, the filter element can be quickly taken out only by separating the locking part from the filter element, and then a new filter element is directly pushed in, so that the new filter element can be fastened, and the purpose of easily and conveniently changing the filter element is achieved.

2. In the preferred scheme of the invention, the lock catch is driven by the push rod with the inclined surface, when the operation of replacing the filter element is carried out, the push rod is only required to be pushed, and the inclined surface of the push rod can jack up the lock catch, so that the lock catch is separated from the filter element, and the operation is convenient and quick.

3. In the preferred scheme of the invention, the lock catch is also provided with the lock catch limiting part, so that the reliability of the locking of the filter element can be further improved, and the filter element can work stably.

Drawings

FIG. 1 is a schematic view of an embodiment of a cartridge quick change mechanism of the present invention;

FIG. 2 is a schematic view of FIG. 1 from the other side;

FIG. 3 is a schematic view of the structure of one embodiment of the stent of the present invention;

FIG. 4 is a schematic view of FIG. 3 from the other side;

FIG. 5 is a schematic view of an embodiment of a latch of the present invention;

FIG. 6 is a schematic view of FIG. 5 from the other side;

FIG. 7 is a schematic view of an embodiment of a putter in accordance with the present invention;

FIG. 8 is a schematic view of a cartridge quick change mechanism of the present invention in a locked configuration;

FIG. 9 is a schematic view of the structure of FIG. 8 from the other side;

FIG. 10 is a schematic view of the quick change mechanism of the present invention in a loose configuration;

FIG. 11 is a schematic view of the structure of FIG. 10 from the other side;

FIG. 12 is a schematic view of a locked state of a filter cartridge in an embodiment of the quick change filter cartridge mechanism of the present invention;

FIG. 13 is a schematic view of a loose state of a filter cartridge in an applied embodiment of the cartridge quick change mechanism of the present invention;

FIG. 14 is a schematic view of a cartridge in an embodiment of an application of the cartridge quick change mechanism of the present invention;

FIG. 15 is a schematic view of a cartridge without a handle in an embodiment of the quick change cartridge mechanism of the present invention;

FIG. 16 is a schematic view of the handle of the filter cartridge in an embodiment of the quick change filter cartridge mechanism of the present invention;

FIG. 17 is a schematic view of a cartridge lock in an embodiment of the quick change cartridge mechanism of the present invention;

FIG. 18 is a schematic view of a snap-lock release state in an embodiment of the filter cartridge quick-change mechanism of the present invention;

FIG. 19 is a top view of FIG. 18;

FIG. 20 is a perspective view of a cartridge lock release state in an applied embodiment of the cartridge quick change mechanism of the present invention;

FIG. 21 is a schematic illustration of a released cartridge condition in an applied embodiment of the cartridge quick change mechanism of the present invention, with the push rod and housing omitted;

FIG. 22 is a top view of FIG. 21 with the pushrod and housing omitted;

FIG. 23 is a perspective view of a cartridge release state of an applied embodiment of the cartridge quick change mechanism of the present invention;

FIG. 24 is a schematic illustration of a cartridge removal state in an embodiment of the cartridge quick change mechanism of the present invention;

FIG. 25 is a schematic view of another embodiment of a cartridge quick change mechanism of the present invention;

FIG. 26 is a schematic illustration of the installation of a filter cartridge in one embodiment of the cartridge quick change mechanism of the present invention;

fig. 27 is a schematic structural view of a die water purifier in the prior art.

Description of the invention with reference numerals

1 a bracket, 11 a push rod, 12 a sliding shaft, 121 a sliding hole and 13 a push rod elastic resetting device;

the device comprises a lock catch 2, a lock catch locking part 21, a lock catch elastic resetting device 22, a lock catch driving part 23, a lock catch limiting part 24 and a hinge shaft 25;

the shell 3, the shell 31, the pushing plate, the first limit hole 311, the second limit hole 312 and the shell 32 lock catch limit holes;

40 filter core, 4014 decorative cover, 4015 handle, 43 filter core locking part, 441 handle spacing groove.

Detailed Description

The following describes in detail the embodiments of the present invention with reference to the drawings and examples. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; either directly or indirectly via intermediate connectors, or by communication between or interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and thus, features defining "first," "second," or the like, may explicitly or implicitly include one or more of such features.

As shown in fig. 1 to 11, as an embodiment of the quick-change filter element mechanism of the present invention, the quick-change filter element mechanism comprises a bracket 1 and a lock catch 2 movably mounted on the bracket 1, a lock catch elastic reset device 22 is arranged between the bracket 1 and the lock catch 2, the lock catch elastic reset device 22 preferably adopts a spring, one end of the lock catch 2 is provided with a lock catch locking part 21, the lock catch locking part 21 has a first position and a second position relative to the bracket 1, and the lock catch locking part 21 can be driven to the first position against the elastic force of the lock catch elastic reset device 22 under the action of an external force and can be reset to the second position through the elastic force of the lock catch elastic reset device 22. When the lock catch 2 is at the second position, the lock catch locking part 21 can generate a locking effect to enable the locked workpiece to work stably and normally, and when the workpiece needs to be replaced, the lock catch 2 is driven by external force to separate from the locked workpiece, so that the workpiece can move, and further the workpiece is convenient and quick to replace.

Specifically, as some embodiments of the connection manner of the lock catch 2 and the bracket 1 of the present invention, as shown in fig. 9 and 11, the other end of the lock catch 2 facing away from the lock catch locking portion 21 is hinged to the bracket 1. The force is applied to one end of the lock catch 2 where the lock catch locking part 21 is located, so that the other end rotates around the hinge shaft 25, the lock catch 2 reaches a first position, the lock catch locking part 21 is separated from a workpiece, and after a new workpiece is replaced, the lock catch 2 automatically resets to a second position under the action of the lock catch elastic resetting device 22 and locks the new workpiece.

Besides the above connection mode, a driving transmission member, such as a driving rod, may be disposed in the middle of the lock catch 2, where the driving rod passes through the bracket 1, and when the driving rod is not subjected to external force and is only acted by the elastic latch resetting device 22, the lock catch 2 is substantially parallel to the bracket 1, and applies force to the driving rod, so that the lock catch 2 moves to the bracket 1 to a first position, at this time, the lock catch 2 is still substantially parallel to the main body of the bracket 1, and after the old workpiece is taken out and replaced with a new workpiece, the driving rod is released, and the lock catch 2 is automatically reset to a second position and locked with the new workpiece under the action of the elastic latch resetting device 22.

Further, as shown in fig. 5 and 6, the side surface of the lock catch 2 near one end of the lock catch locking portion 21 is provided with a lock catch driving portion 23, and the side surface of the lock catch 2 where the lock catch driving portion 23 is located does not affect the operation of the lock catch locking portion 21, and is convenient to be forced. As shown in fig. 1-2 and fig. 8-11, the support 1 is provided with a push rod 11 along the length direction of the lock catch 2, and a driving contact surface of the push rod 11 is in contact with the lock catch driving portion 23 and is an inclined surface. Under the condition of no external force, the lock catch driving part 23 is contacted with the bottom of the inclined plane, the push rod 11 moves towards the hinged end of the lock catch 2 after being subjected to the external force, the lock catch driving part 23 gradually moves towards the top of the inclined plane by the extrusion force of the inclined plane, namely, the lock catch driving part 23 is jacked up, so that the lock catch locking part 21 can be driven to rotate towards the first position close to the bracket 1, and further the lock catch locking part 21 is gradually separated from a locked workpiece.

In order to enable the filter element quick-change mechanism to be stable in the working process, a lock catch limiting part 24 is arranged on the other side, opposite to the side where the lock catch driving part 23 is arranged, of the lock catch 2 so as to limit the movement of the lock catch 2, and further improve the locking stability of a workpiece. Preferably, a protrusion is formed on a side of the locking limiting portion 24 facing away from the bracket 1.

In order to install the push rod 11 conveniently, as shown in fig. 7, a sliding shaft 12 is fixed on the push rod 11, as shown in fig. 9 and 11, a sliding hole 121 of the sliding shaft 12 is provided on the bracket 1, so that the installation position of the push rod 11 will not affect the lock catch driving part 23 and the action thereof, and the spatial arrangement of the mechanism is more reasonable. The sliding shaft 12 and the push rod 11 may be parallel or inclined to each other.

On the basis of the above technical solution, a push rod elastic reset device 13, such as a spring, is disposed between the support 1 and the push rod 11 or the sliding shaft 12, the spring may be sleeved on the sliding shaft 12, one end of the spring abuts against one side of the sliding hole 121 on the support 1, the other end abuts against the connecting piece between the sliding shaft 12 and the push rod 11, and after the external force to the push rod 11 disappears, the spring automatically resets the push rod 11, which is more convenient than a manual reset mode.

On the basis of the technical scheme, in order to facilitate the installation of the bracket 1 and promote the rationality of the integral structure of the filter element quick-change mechanism, the bracket 1 comprises a supporting part and installation parts positioned on two sides of the supporting part, the lock catch 2 is connected to the supporting part, and the push rod 11 is arranged on one of the installation parts.

In order to facilitate the installation of the filter element 40, the filter element quick-change mechanism further comprises a casing 3, an opening for installing and detaching the filter element 40 is formed at one end of the casing 3, and the bracket 1 is fixedly installed on the outer wall of the end head in a threaded connection or welding mode. In use, the filter cartridge 40 is inserted into the interior of the housing 3.

In use, the cartridge 40 may be either completely contained within the housing 3 or may extend out of the housing 3. In the case where the cartridge 40 is completely located in the housing 3, the latch locking portion 21 latches the end of the cartridge 40 so that it cannot be removed from the housing 3; in the case that the end of the filter cartridge 40 extends out of the casing 3, the filter cartridge 40 is provided with a filter cartridge locking portion 43 adapted to the latch locking portion 21, that is, as shown in fig. 12 to 15, the end of the filter cartridge 40 is provided with a recessed filter cartridge locking portion 43 accommodating the latch locking portion 21.

For convenient operation, a handle 4015 is arranged on the end of the filter element 40 exposed out of the opening of the casing 3. When the filter element 40 is completely positioned in the casing 3, the lifting handle 4015 can be fixed in the middle of the end of the filter element 40, and after the lock catch locking part 21 releases the filter element 40 by using external force, the lifting handle 4015 is grasped to pull the filter element 40 out of the casing 3; with the end of the cartridge 40 extending out of the housing 3, the handle 4015 may be hinged to the end of the cartridge 40 to be rotatable between a stowed position in which the handle 4015 is capable of being applied with a pulling force parallel to the insertion direction of the cartridge, and a pulled position in which the contact surfaces of the handle 4015 with the force-receiving end of the push rod 11 are wedge-shaped inclined surfaces that cooperate with each other such that the wedge-shaped inclined surfaces contact each other when the handle 4015 is in the stowed position 4 and the push rod 11 is driven by the cooperation of the wedge-shaped inclined surfaces to move along the length of the shackle 2 when rotated toward the pulled position to jack the shackle drive portion 23 such that the shackle locking portion 21 releases the restriction of the cartridge 40 and then pulls it out of the housing 3. Specifically, as shown in fig. 15-16, a rotating shaft is disposed on the inner side of the lifting handle 4015, a corresponding clamping hole is disposed at the end of the filter element 40, and the rotating shaft can rotate in the clamping hole.

The cartridge locking portion 43 is provided on the decorative cover 4014 of the cartridge 40. The wedge-shaped slope of the handle 4015 faces the cartridge locking portion 43 when in the stowed position. The handle 4015 is preferably hinged on the decorative cover 4014, the end face of the decorative cover 4014 is preferably in a step shape, and when the handle 4015 is in a retracted position, the main body can be abutted to the lower step of the decorative cover 4014, so that space is saved, and attractiveness is improved. The end surface of the filter cap 4013 is also preferably stepped. A handle limit groove 441 is formed in the side, facing the filter element locking portion 43, of the handle 4015. The end of the lock catch limiting part 24 can be accommodated in the handle limiting groove 441 when the filter element 40 is in a locking state, so that the handle 4015 is connected with other components into a whole, and the stability of the filter element 40 is not affected by any shaking when the filter element is not affected by external force.

As shown in fig. 17-26, the outer peripheral surface of the end portion at the opening end of the casing 3 is provided with a protruding casing pushing plate 31, the bracket 1 is arranged on one side of the casing 3, which is opposite to the opening end of the casing 3, the casing 3 is provided with a locking casing limiting hole 32 capable of accommodating the locking part 21, so that the locking part 21 can lock and release the filter element 40 through the locking casing limiting hole 32, the casing pushing plate 31 is provided with a first limiting hole 311, the push rod 11 is arranged in the first limiting hole 311 in a penetrating manner, and the stressed end of the push rod 11 extends out of the casing pushing plate 31. Under the condition that the push rod 11 is not subjected to external force, the lock catch locking part 21 penetrates through the lock catch shell limiting hole 32 to lock the filter element 40, and the stress end of the push rod 11 extends out of the shell push plate 31; when the push rod 11 is subjected to external force separating from the first limiting hole 311, the inclined surface of the push rod 11 jacks up the lock catch driving part 23, so that the lock catch locking part 21 gradually separates from the filter element 40, and then the old filter element 40 is pulled out of the machine shell 3 and replaced by a new filter element 40.

In order to ensure stability, the casing pushing plate 31 is further provided with a second limiting hole 312, and the locking limiting portion 24 is disposed in the second limiting hole 312 in a penetrating manner. When the push rod 11 is not acted by external force, the lock catch limiting portion 24 of the lock catch 2 is located in the second limiting hole 312, and when the push rod 11 is acted by external force, the lock catch locking portion 21 is gradually separated from the filter element 40, the lock catch limiting portion 24 may be located in the second limiting hole 312 or may be separated from the second limiting hole 312.

In addition, the invention also provides a water purifier which comprises the filter element quick-changing mechanism and the filter element 40.

From the above description, it can be seen that the present invention has the following advantages: the filter element quick-change mechanism can tightly grasp the filter element 40 by the lock catch locking part 21 in normal use or normal operation of the water purifier, so that the filter element 40 is not separated, all water flows are ensured to be filtered by the filter element 40, when the service life of the filter element 40 is up, the filter element 40 can be quickly taken out by separating the lock catch locking part 21 from the filter element 40, and then a new filter element 40 is directly pushed in, so that the new filter element 40 can be fastened, and the purpose of easily and conveniently changing the filter element 40 is achieved; in the preferred scheme of the invention, the lock catch 2 is driven by the push rod 11 with the inclined plane, when the operation of replacing the filter element 40 is carried out, only the push rod 11 is needed to be pushed, the inclined plane of the push rod 11 can jack up the lock catch 2, so that the lock catch 2 releases the limit on the filter element 40, and the operation is convenient and quick; the lock catch 2 is also provided with the lock catch limiting part 24, so that the locking reliability of the filter element 40 can be further improved, and the stable operation of the filter element can be ensured.

A preferred embodiment of the present invention is listed below.

As shown in fig. 1-11 and 25, the quick-change filter element mechanism comprises a bracket 1 and a lock catch 2 movably mounted on the bracket 1, a return spring is arranged between the bracket 1 and the lock catch 2, one end of the lock catch 2 is provided with a lock catch locking part 21, the lock catch locking part 21 has a first position and a second position relative to the bracket 1, and the lock catch locking part 21 can be driven to the first position against the elastic force of the return spring under the action of external force and can be reset to the second position through the elastic force of the return spring. The other end of the lock catch 2 facing away from the lock catch locking part 21 is hinged on the bracket 1. The side of the lock catch 2, which is close to one end of the lock catch locking part 21, is provided with a lock catch driving part 23, the bracket 1 is provided with a push rod 11 along the length direction of the lock catch 2, the driving contact surface of the push rod 11 is contacted with the lock catch driving part 23, and the driving contact surface is an inclined surface. The push rod 11 is fixedly provided with a sliding shaft 12, the support 1 is provided with a sliding hole 121 of the sliding shaft 12, the reset spring is sleeved on the sliding shaft 12, one end of the reset spring is propped against one side of the sliding hole 121 on the support 1, and the other end of the reset spring is propped against a connecting piece of the sliding shaft 12 and the push rod 11. The other side of the lock catch 2 opposite to the side where the lock catch driving part 23 is located is provided with a lock catch limiting part 24. The bracket 1 is arranged on the casing 3 in a threaded manner, and a casing pushing plate 31 is arranged at the end of the casing 3. The casing that hasp 2 is located pushes away one side of position board 31 back to casing 3 open end, is equipped with the hasp casing spacing hole 32 that can hold hasp locking portion 21 on the casing 3, is equipped with first spacing hole 311 on the casing pushes away position board 31, and push rod 11 can be located in first spacing hole 311 and the atress end of this push rod 11 stretches out casing and pushes away position board 31. The casing pushing plate 31 is provided with a second limiting hole 312, and the lock catch limiting part 24 of the lock catch 2 can be located in the second limiting hole 312.

When the filter element quick-change mechanism and the filter element 40 are installed in the water purifier, the casing 3 is fixedly connected with the installation position of the water purifier. When the old filter element 40 needs to be replaced, as shown in fig. 18-20, the lifting handle 4015 of the quick-change old filter element is lifted, and when the lifting handle is lifted by a small angle of 11 degrees, the inclined surface of the lifting handle 4015 pushes the push rod 11 to a certain distance of 1.5mm, so that the lock catch limiting part 24 of the lock catch 2 is not limited by the lifting handle limiting groove 441. The lifting handle 4015 then continues to lift, and the inclined surface of the lifting handle 4015 continues to push the push rod 11, and at this time, the inclined surface of the push rod 11 pushes up the latch driving portion 23 of the latch 2, so that the latch 2 rotates. The lifting handle 4015 is lifted all the time to about 40 degrees, and as shown in fig. 21-23, the lifting handle 4015 pushes the push rod 11 by about 7.5mm, and the lock catch 2 rotates by about 6.2 degrees. At this time, the latch locking portion 21 will be completely disengaged from the old cartridge locking portion 43, so that the old cartridge 40 will not be restricted from movement in the axial direction. The lifting handle 4015 continues to lift, and at this time the lifting handle 4015 will contact the housing push plate 31. When the lifting handle 4015 is further lifted, the lifting handle 4015 is reacted by the housing push plate 31 to move the entire old filter element 40 outwardly until the lifting handle is about 90 degrees, as shown in fig. 24, and the housing push plate 31 pushes the old filter element 40 outwardly a greater distance, e.g., 8.5mm, through the lifting handle 4015. At this time, the old filter element 40 can be directly pulled out without any restriction on the axial direction of the old filter element 40.

When the new filter element 40 is installed, the new filter element 40 can be directly pushed in by aiming at the cylinder of the casing 3, at the moment, the water receiving end of the new filter element 40 pushes up the lock catch locking part 21 of the lock catch 2, so that the lock catch 2 rotates by a certain angle, as shown in fig. 25-26, the new filter element 40 is further pushed in, and the new filter element 40 is always pushed to the bottom, so that the new filter element 40 can reach the locking state as shown in fig. 17.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.

Claims

1. The quick-change mechanism for the filter element is characterized by comprising a bracket (1) and a lock catch (2) movably mounted on the bracket (1), wherein a lock catch elastic reset device (22) is arranged between the bracket (1) and the lock catch (2), one end of the lock catch (2) is provided with a lock catch locking part (21), the lock catch locking part (21) has a first position and a second position relative to the bracket (1), and the lock catch locking part (21) can be driven to the first position against the elastic force of the lock catch elastic reset device (22) under the action of external force and can be reset to the second position through the elastic force of the lock catch elastic reset device (22);

the side of hasp (2) be close to hasp locking portion (21) one end is equipped with hasp drive portion (23), the opposite side that is equipped with on hasp (2) with hasp drive portion (23) place one side opposite hasp limit portion (24) to can promote the stability of work piece locking.

2. The quick-change mechanism according to claim 1, characterized in that the other end of the lock catch (2) facing away from the lock catch locking portion (21) is hinged to the bracket (1).

3. The quick-change mechanism according to claim 2, wherein the bracket (1) is provided with a push rod (11) along the length direction of the lock catch (2), a driving contact surface of the push rod (11) is in contact with the lock catch driving part (23), and the driving contact surface is an inclined surface, so that the lock catch driving part (23) can be jacked up by the inclined surface under the driving of the push rod (11), and further, the lock catch locking part (21) can be driven to rotate towards the first position close to the bracket (1).

4. A quick-change mechanism for a filter element according to claim 3, wherein a sliding shaft (12) is fixed on the push rod (11), and a sliding hole (121) of the sliding shaft (12) is arranged on the bracket (1).

5. The quick-change mechanism according to claim 4, characterized in that a push rod elastic reset device (13) is arranged between the bracket (1) and the sliding shaft (12).

6. The quick-change mechanism of a filter cartridge according to claim 1, wherein the bracket (1) comprises a supporting portion and mounting portions located on both sides of the supporting portion, and the lock catch (2) is connected to the supporting portion.

7. The quick-change mechanism according to claim 6, wherein one of the mounting portions is provided with a push rod (11) along the length direction of the lock catch (2).

8. The cartridge quick-change mechanism according to any one of claims 1 to 7, further comprising a housing (3), said bracket (1) being mounted on an outer wall of one end of said housing (3).

9. A water purifier comprising the cartridge quick change mechanism according to any one of claims 1 to 8.