CN212309055U

CN212309055U - Filter element and water purifier with same

Info

Publication number: CN212309055U
Application number: CN201921934893.1U
Authority: CN
Inventors: 贺素平; 官阔荣
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2021-01-08
Anticipated expiration: 2029-11-11

Abstract

The utility model provides a filter core and purifier that has this filter core. The filter element comprises a body and a handle, the handle is connected to the body in a pivoting manner through a pin shaft and can pivot between a buckling position and an opening position around the pin shaft, a first limiting part is arranged on the handle, and when the handle pivots between the buckling position and the opening position, the first limiting part is provided with a rotating path rotating around the pin shaft; the body comprises a locking piece which is movably arranged on the body between a retracting position and an extending position along the axial direction of the pin shaft, and a second limiting part is arranged on the locking piece; when the locking piece is in the extended position, the first limiting part and the second limiting part are staggered along the axial direction of the pin shaft, so that the second limiting part is positioned outside the rotating path of the first limiting part. Like this, whether the accessible handle can rotate to the lock position and judge whether the filter core is correctly installed, avoids the phenomenon of leaking.

Description

Filter element and water purifier with same

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a filter core and purifier that has this filter core.

Background

With the improvement of living standard, the water quality requirement of people on domestic water is higher and higher. There are various water purifiers in the existing market, which are installed on water supply pipelines to filter and purify tap water. The water purification effect of purifier mainly filters through the filter core and realizes, in order to guarantee water purification quality, the filter core will be changed regularly.

In the existing water purifier, a water inlet and a water outlet are both arranged on the same end surface of a filter element, and the filter element and a filter base are connected together in a threaded mode. During installation and disassembly, the filter element needs to rotate relative to the filter base until the water inlet and the water outlet of the filter element are mutually butted. The rotary installation mode can cause the problems of water channeling between the filter element and the water channel inside the filter base in the rotary process, inconvenience in installation and the like. It has therefore been proposed to mount the filter cartridge in the filter base in-line.

The existing direct-insertion filter element is usually locked on a filter seat in a water purifier by adopting locking pieces and other modes. In the installation filter core in-process, the user can't judge whether the locking piece is in the state of stretching out completely, though the filter core can be locked in straining the seat this moment, because the locking piece does not stretch out completely, the connection of filter core and straining the seat is not firm, so has the risk of leaking.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art at least partially, the utility model provides a filter element and a water purifier with the filter element.

According to an aspect of the present invention, there is provided a filter element, comprising a body and a handle, the handle being pivotally connected to the body by a pin, the handle being pivotable between a locked position and an open position about the pin, the handle being provided with a first limit portion, the first limit portion having a rotational path that rotates about the pin when the handle is pivoted between the locked position and the open position; the body comprises a locking piece which is movably arranged on the body between a retracted position and an extended position along the axial direction of the pin shaft, and a second limiting part is arranged on the locking piece; when the locking piece is located at the extending position, the first limiting portion and the second limiting portion are mutually staggered along the axial direction of the pin shaft, so that the second limiting portion is located outside the rotating path of the first limiting portion.

Therefore, whether the locking piece is in the extending position or not, namely whether the filter element is in the correct installation position or not can be judged through whether the handle can be pivoted to the buckling position or not. Only after the filter element is inserted in place in the water purifier, the locking piece can be positioned at the extending position, and the handle can be rotated to the buckling position; if the filter core is incorrectly connected with the water purifier or the installation is not in place, the locking piece is not positioned at the extending position, and the first limiting part and the second limiting part can prevent the handle from rotating to the buckling position, so that the user is reminded that the filter core is not correctly installed. Therefore, through setting up the first spacing portion and the spacing portion of second that can stagger each other along the pivot direction, the user can judge the mounted state of filter core through whether the handle can rotate to the lock position when the installation filter core. The user can make adjustment in time, and the water leakage phenomenon caused by improper installation of the filter element is avoided.

Exemplarily, the round pin axle sets up on the handle, be provided with on the locking piece along the axial direction extended shaft hole of round pin axle, the round pin axle inserts to the shaft hole, the spacing portion of second sets up on the lateral wall in shaft hole, first spacing portion sets up on the outer wall of round pin axle.

Through being provided with the shaft hole on the locking piece, being provided with the round pin axle on hand, can reduce the space size that spacing portion of second and first spacing portion occupy, make the locking mechanical system of filter core more small and exquisite compactness, improve the integrated level.

Illustratively, a recess and a platform connected with an opening edge of the recess are arranged on a side wall of the shaft hole, the recess is recessed relative to the platform along an extending direction of the shaft hole, the platform is the second limiting portion, wherein the first limiting portion is accommodated in the recess when the locking member is located at a retracted position and the handle is located at the opening position, and the first limiting portion abuts against the platform along an axial direction of the pin shaft when the locking member is located at the extended position and the handle is located at the fastening position.

Therefore, the structure can prompt a user, and whether the locking piece is located at a complete extending position or not can be judged by judging whether the locking piece can rotate to the buckling position or not through the handle, so that whether the filter element is installed in place or not is judged.

Illustratively, the notch is inwardly tapered from an end surface of the shaft hole along an extending direction of the shaft hole, wherein the first limiting portion is attached to a side surface of the notch at any point on the rotation path in the notch.

The notch with the structure is beneficial to the handle to slide stably on the side surface in the process of reciprocating movement between the opening position and the buckling position, so that the use experience of a user is improved.

Exemplarily, a sliding groove is further formed in the side wall of the shaft hole, a sliding protrusion capable of being accommodated in the sliding groove is further arranged on the pin shaft, the filter element further comprises a reset piece connected to the locking piece, the sliding groove is provided with an inclined plane inclined relative to the axial direction of the pin shaft, when the handle is in the opening position, the sliding protrusion abuts against the first position of the inclined plane, and the locking piece is in the retracting position; when the handle is in the buckling position, the sliding protrusion abuts against the second position of the inclined plane, the locking piece is in the extending position, and the first position is located on the outer side of the second position along the axial direction; the inclined surface of the sliding groove is parallel to the side surface of the notch.

The smoothness of the handle in the process of rotating from the opening position to the buckling position is improved, and the use experience of a user is improved.

Illustratively, the part of the pin shaft provided with the first limiting part has a diameter smaller than that of other parts.

Like this, can make first spacing portion pass the shaft hole in the installation, easily assemble locking piece and handle together, be favorable to the installation.

Illustratively, at least one of the second stopper portion and the first stopper portion is a stopper projection. The limiting structure of the filter element can be in various forms, and is suitable for various filter elements.

Exemplarily, a sliding groove is further formed in the side wall of the shaft hole, a sliding protrusion capable of being accommodated in the sliding groove is further formed in the pin shaft, the filter element further comprises a reset member connected to the locking member, wherein the sliding groove has an inclined surface inclined with respect to an axial direction of the pin shaft, when the handle is in the open position, the sliding protrusion abuts against a first position of the inclined surface, and the locking member is in the retracted position; and when the handle is in the buckling position, the sliding protrusion abuts against the second position of the inclined plane, the locking piece is in the extending position, and the first position is located on the outer side of the second position along the axial direction.

Therefore, the locking piece and the handle with the structure are provided, and the purpose is to improve the pushing effect of the locking piece when the handle rotates.

Illustratively, the first position is located at an end of the slope, the slide groove further has a flat surface connected to the slope at the end, the flat surface extending in a circumferential direction of the shaft hole, the handle further has a holding position in which the slide projection abuts against the flat surface, and the lock member is in the retracted position.

Like this, through be provided with the plane in the slip recess, when the handle rotated to holding position, even the user no longer controlled the handle, the handle also can stay at this position, and does not worry because loose hand, the inclined plane makes the handle turn to the lock position to the bellied reaction force of slip.

Illustratively, the pin shaft is inserted into the shaft hole from an outside in an axial direction thereof, and the returning member is used to return the locking member from the retracted position to the extended position. The structure is simple and easy to realize.

Illustratively, the pin shaft is inserted into the shaft hole from an inner side in an axial direction thereof, and the returning member is used to return the locking member from the extended position to the retracted position. The structure is simple and easy to realize.

According to another aspect of the utility model, a water purifier is provided with locking groove on it, water purifier still includes as above any kind of filter core, its locking piece inserts in the locking groove.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a perspective view of a filter cartridge according to an exemplary embodiment of the present invention installed in a water purifier, wherein the filter cartridge is in an unlocked state;

fig. 2 is a partial perspective view of a filter cartridge according to an exemplary embodiment of the present invention, wherein the filter cartridge is in an unlocked state;

FIG. 3 is a partial perspective view of the filter cartridge shown in FIG. 2, wherein the filter cartridge is in a locked condition;

fig. 4 is an assembly view of a handle and locking member of a filter cartridge according to an exemplary embodiment of the present invention;

FIG. 5 is a perspective view of the handle shown in FIG. 4;

FIG. 6 is a perspective view of the locking member shown in FIG. 4;

FIG. 7 is an alternative angle assembly view of the handle and lock shown in FIG. 4;

FIG. 8 is a perspective view of another angle of the locking member shown in FIG. 6;

FIG. 9 is a front view of the locking element shown in FIG. 6;

fig. 10 is a simplified schematic view of a filter cartridge according to an exemplary embodiment of the present invention, with the handle in a latched position;

FIG. 11 is a simplified schematic view of the cartridge shown in FIG. 10, with the handle in an open position;

fig. 12 is a simplified schematic view of a filter cartridge according to another exemplary embodiment of the present disclosure, wherein the handle is in a latched position; and

fig. 13 is a simplified schematic view of the cartridge shown in fig. 12, with the handle in an open position.

Wherein the figures include the following reference numerals:

10. a filter element; 100. a body; 200. a locking member; 210. a second limiting part; 220. a shaft hole; 230. A sliding groove; 231. a bevel; 232. a plane; 2311. a first position; 2312. a second position; 240. a recess; 250. a platform; 241. a side surface; 300. a handle; 310. a first limiting part; 320. A pin shaft; 330. a sliding projection; 400. a reset member; 500. a mounting frame; 510. and locking the grooves.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

The utility model provides a filter element 10, as shown in figure 1. The cartridge 10 is an in-line cartridge that can be secured to a water purifier, such as to a mounting frame 500 within the water purifier. This installation frame 500 can set up at the top of purifier, and the filter core 10 is provided with locking mechanical system in the one end at handle 300 place, and installation frame 500 can cooperate with locking mechanical system, with filter core 10 and installation frame locking. The top is relative to the position shown in fig. 1, and the position of the mounting frame 500 changes when the water purifier is placed in other orientations. Of course, the mounting frame 500 may not be provided, as long as there is a mounting hole for receiving the filter cartridge 10 in the water purifier, and a corresponding part (such as a locking groove 510 to be described below) is provided on the side wall thereof. For ease of understanding, the principle of the present invention will be described below by taking the embodiment shown in fig. 1 as an example.

The mounting frame 500 has a mounting hole for the filter cartridge 10 to pass through, and a locking groove 510 is formed on an inner sidewall of the mounting hole. A locking member 200 is provided on the cartridge 10. The locking groove 510 can cooperate with the locking member 200 to lock the cartridge 10 and the mounting frame 500 together, thereby securely locking the cartridge 10 in the water purifier.

However, in real life, sometimes the locking mechanism is not completely matched with the locking groove 510 due to problems such as the user does not install the filter element 10 in place, that is, the filter element 10 is not correctly connected to the water purifier, so that water leakage occurs during the use of the water purifier. In order to help a user know the installation condition of the filter cartridge 10 in time when the filter cartridge 10 is installed, a filter cartridge as described below is designed.

Specifically, the cartridge 10 includes a body 100 and a handle 300, the handle 300 being connected to the body 100. The body 100 includes a locking element 200 therein, as shown in fig. 1. The body 100 may also include a filter device (not shown) of the filter cartridge 10, such as a reverse osmosis filter membrane, which is not an improvement of the present invention and will not be described in detail.

As shown in fig. 2-6, the handle 300 may be pivotally connected to the body 100 by a pin 320. The pin 320 extends along an axis O-O. Further, the handle 300 may be coupled to the locking member 200. The pin 320 may be provided on the handle 300 and also on the locking member 200. The handle 300 has a snap-fit position (shown in fig. 3) and an open position (shown in fig. 2), and the handle 300 is pivotable about the pin 320 between the snap-fit position and the open position.

The fastening position can be a position where the handle 300 is attached to the upper end surface of the filter element 10, so that after the filter element 10 is locked in the installation frame 500, the handle 300 is attached to the upper end surface of the filter element 10, the use of a user is not affected, and the user cannot touch the handle 300 by mistake.

The open position may be that the handle 300 is perpendicular to the upper end surface of the body 100. This is more ergonomic and facilitates the user in removing the cartridge 10 from the mounting frame.

Of course, the snap-fit position and the open position may be in other directions or angles, and are not described in any greater detail herein. It is certain that the handle 300 can be rotated between the snap-fit position and the open position.

The first stopper 310 is provided on the handle 300, and the first stopper 310 may rotate with the handle 300 to form a rotation path about the axis O-O when the handle 300 pivots between the fastening position and the opening position.

The locking member 200 is disposed within the body 10 and has a retracted position (as shown in fig. 2) and an extended position (as shown in fig. 3). The locking member 200 is reciprocally movable between a retracted position and an extended position. When the locking member 200 is in the retracted position, the locking member 200 is retracted into the body 100, so that the locking member 200 is withdrawn out of the locking groove 510, thereby releasing the locking relationship between the cartridge 10 and the mounting frame 500. When the locking member 200 is in the extended position, at least a portion of the locking member 200 extends out of the body 100, and the locking groove 510 can receive the extended portion of the locking member 200, thereby locking the cartridge 10 with the mounting frame 500.

The locking member 200 is further provided with a second position-limiting portion 210. When the locking member 200 is in the retracted position, the second position-limiting portion 210 is located on the rotation path of the first position-limiting portion 310. When the locking element 200 is in the extended position, the first position-limiting portion 310 and the second position-limiting portion 210 are staggered along the axial direction of the pin shaft (i.e., the extending direction of O-O), so that the second position-limiting portion 210 is located outside the rotation path of the first position-limiting portion 310. That is, when the locking member 200 is in the retracted position, the handle 300 cannot be rotated from the open position to the engaged position because the second stopper portion 210 is stopped on the rotation path of the first stopper portion 310. Only when the locking member 200 is in the extended position, the first position-limiting portion 310 and the second position-limiting portion 210 are staggered, and the handle 300 can be rotated to the engaging position.

In one embodiment, the second position-limiting portion 210 and the first position-limiting portion 310 may be position-limiting protrusions provided on the locking member 200 and the handle 300, respectively. Specifically, when the locking member 200 is moved to the extended position and the handle 300 is pivoted to the engaging position, the first position-limiting portion 310 and the second position-limiting portion 210 are staggered along the moving direction of the locking member 200. When the handle 300 is not pivoted to the fastening position, the second position-limiting portion 210 blocks the first position-limiting portion 310 on the rotation path, thereby preventing the handle 300 from rotating to the fastening position. The limiting protrusion may be any shape capable of achieving the function, such as a stopper, a barrier strip, and the like.

In one embodiment, at least one of the second position-limiting portion 210 and the first position-limiting portion 310 is a position-limiting protrusion. The second position-limiting portion 210 may be a position-limiting protrusion disposed on a side wall of the shaft hole 220, and the first position-limiting portion 310 may be a position-limiting protrusion disposed on an outer wall of the pin 320.

When the locking member 200 is located at the retracted position, the second position-limiting portion 210 and the first position-limiting portion 310 prevent the handle 300 from rotating to the engaging position. When the locking member 200 moves to the extended position, the second position-limiting portion 210 and the first position-limiting portion 310 are staggered, and the handle 300 can rotate to the engaging position.

At least one of the second position-limiting part 210 and the first position-limiting part 310 is a position-limiting protrusion, so that the position-limiting structure of the filter cartridge 10 can have various forms, and can be adapted to various filter cartridges 10.

It can be seen that whether the locking member 200 is in the extended position, i.e., whether the filter cartridge 10 is in the proper installation position, can be determined by whether the handle 300 can be pivoted to the snap-fit position. Only after the filter element 10 is inserted in place in the water purifier, the locking member 200 can be in the extended position, and the handle 300 can also be rotated to the buckling position; if the filter element 10 is not correctly connected to the water purifier or is not installed in place, the locking member 200 is not located at the protruding position, and the first limiting portion 310 and the second limiting portion 210 prevent the handle from rotating to the fastening position, so as to remind the user that the filter element 10 is not correctly installed. Therefore, by providing the first stopper 310 and the second stopper 210 which can be shifted from each other along the direction of the pivot O-O, the user can determine the installation state of the filter element 10 by whether the handle 300 can be rotated to the engagement position when installing the filter element 10. The user can make adjustment in time, and the water leakage phenomenon caused by improper installation of the filter element 10 is avoided.

Illustratively, as shown in fig. 5 to 6, the pin 320 is disposed on the handle 300, and the locking member 200 is provided with a shaft hole 220, the shaft hole 220 extending in an axial direction of the pin 320. The first position-limiting portion 310 is disposed on an outer wall of the pin 320, and the second position-limiting portion 210 is disposed on a side wall of the shaft hole 220. The handle 300 can be rotated relative to the locking member 200 by the engagement of the shaft hole 220 and the pin 320.

Through being provided with shaft hole 220 on locking piece 200, be provided with round pin axle 320 on handle 300, can reduce the space size that second spacing portion 210 and first spacing portion 310 occupy, make the locking mechanical system of filter core 10 more small and exquisite compactness, improve the integrated level.

In a preferred embodiment, a recess 240 is formed on a sidewall of the shaft hole 220 of the locking member 200, and a platform 250 is formed on a sidewall of the shaft hole 220 to be coupled to an edge of the recess 240, as shown in fig. 6. The recess 240 is recessed relative to the platform 250 along the extending direction of the shaft hole 220, and the portion of the end surface of the platform 250 near the recess 240 protrudes relative to the recess 240, so that the platform 250 is the second position-limiting portion 210.

The first position-limiting portion 310 is accommodated in the recess 240 when the locking member 200 is located at the retracted position and the handle 300 is located at the open position. That is, the rotation path of the first position-limiting portion 310 is located in the recess 240, and the second position-limiting portion 210 blocks the rotation of the first position-limiting portion 310 through the rotation path of the first position-limiting portion 310, so that the handle 300 cannot be rotated to the engaging position. In fact, the locking element 200 is not only in the retracted position, but also in the extended position, and the second position-limiting portion 210 is located on the rotation path of the first position-limiting portion 310 to block the rotation of the first position-limiting portion 310.

When the locking member 200 is located at the extended position and the handle 300 is located at the engaging position, the first position-limiting portion 310 abuts against the platform (i.e., the second position-limiting portion 210) along the axial direction of the pin 320. At this time, the first stopper portion 310 may be a stopper protrusion provided on the handle 300. When the locking member 200 moves to the extended position, the first position-limiting portion 310 can be staggered from the second position-limiting portion 210 along the moving direction of the locking member 200, the second position-limiting portion 210 moves out of the rotating path of the first position-limiting portion 310 without blocking the first position-limiting portion 310, and the handle 300 can rotate to the fastening position.

When the locking member 200 is not moved to the extended position, the first position-limiting portion 310 will fall into the recess 240, preventing the handle 300 from rotating to the engaging position. Which will be described in detail below.

Therefore, the structure can prompt a user, and judges whether the locking piece 200 is in the fully extended position or not by judging whether the handle 300 can be rotated to the buckling position or not, so as to judge whether the filter element 10 is installed in place or not.

Illustratively, as shown in fig. 6, the notch 240 is tapered inward from the end surface of the shaft hole 220 along the extending direction of the shaft hole 220, so that the notch 240 has a structure with a larger outside and a smaller inside. Illustratively, the notch 240 may be formed by cutting a portion of the sidewall of the shaft hole 220. In a preferred embodiment, a side 241 is formed in the recess 240, the side 241 being inclined with respect to the moving direction of the locking member 200. The first position-limiting portion 310 is attached to the side 241 of the recess 240 at any point of the rotation path in the recess 240. The first position-limiting part 310 slides along the side 241 of the recess 240 to the bottom of the recess 240 during the process of pivoting the handle 300 from the fastening position to the opening position.

The notch 240 with the structure helps the first limiting part 310 slide smoothly on the side 241 during the reciprocating movement of the handle 300 between the opening position and the buckling position, thereby improving the user experience.

Illustratively, the portion of the pin 320 where the first stopper 310 is disposed has a smaller diameter than the other portions. As shown in fig. 5, since the first stopper 310 protrudes outward from the sidewall of the pin 320 in the radial direction, the size of the pin 320 is set to be small, and the first stopper 310 can pass through the axial hole 220 during the installation process, so that the locking member 200 and the handle 300 can be easily assembled together, which is advantageous for the installation.

Illustratively, the sidewall of the axial hole 220 is further provided with a sliding groove 230 (as shown in fig. 8), the pin 320 is provided with a sliding protrusion 330 (as shown in fig. 5 and 7) capable of being received in the sliding groove 230, and the filter cartridge 10 further includes a reset member 400 (as shown in fig. 3) connected to the locking member 200.

The sliding groove 230 has a slope 231 inclined with respect to the moving direction of the locking member 200. Wherein when the handle 300 is in the open position, the sliding protrusion 330 abuts against the first position 2311 of the inclined surface 231 and the locking member 200 is in the retracted position, as shown in fig. 11. When the handle 300 is in the engaged position, the sliding protrusion 330 abuts against the second position 2312 of the inclined surface 231 and the locking member 200 is in the extended position, as shown in fig. 10. In the direction of the axis O-O, the first position 2311 is located outside the second position 2312. The outer side is relative to the cartridge 10, i.e., a position further from the axial center of the cartridge 10 in the direction of the axis O-O.

As shown in fig. 10-11 and 12-13, two connection modes of the handle 300 and the locking member 200 are provided, respectively, with the movement process as described below. The slide tab 330 slides along the ramp 231 during movement of the handle 300 from the latched position to the open position, moving from the second position 2312 (shown in fig. 10 and 12) to the first position 2311 (shown in fig. 11 and 13) to move the latch 200 from the extended position to the retracted position to unlatch the cartridge 10. Otherwise, the cartridge 10 is locked.

In one embodiment, as shown in fig. 5-6 and 10-11, the pin 320 is inserted into the shaft hole 220 from the outside in the axial direction thereof, and the restoring member 400 serves to return the locking member 200 from the retracted position to the extended position. In one embodiment, the return element 400 is a spring, which is compressed to increase the elastic potential energy when in the retracted position. Giving the locking member 200 a tendency to move out. The structure is simple and easy to realize.

In another embodiment, as shown in fig. 12-13, the pin 320 is inserted into the shaft hole 220 from the inside in the axial direction thereof, and the restoring member 400 is used to return the locking member 200 from the extended position to the retracted position. In one embodiment, the return element 400 is a spring, and the spring is stretched to increase the elastic potential energy when in the extended position. Giving the locking member 200 a tendency to move in a retracting motion. The structure is simple and easy to realize.

The above restoring member 400 may also take various forms such as an elastic member made of an elastic material, a tension spring, a torsion spring, etc. Also, the restoring member 400 may have various kinds as long as its function can be achieved.

The movement of unlocking the cartridge 10 in one of the modes of connection of the handle 300 will be described in detail below. As shown in fig. 7-9 and 10-11, during the process of pivoting the handle 300 from the latching position to the opening position (i.e., pivoting in the direction of arrow a shown in fig. 7), the sliding protrusion 330 slides along the inclined surface 231 and moves from the second position 2312 to the first position 2311 to push the locking member 200 to move in the direction of arrow M. The lock 200 is moved from the extended position to the retracted position to unlock the cartridge 10. In this embodiment, the sliding protrusion 330 may also have the same or similar shape as the sliding groove 230, and the function thereof is the same, and will not be described in detail.

It can be seen that the lock member 200 and the handle 300 having the above structure are provided to improve the pushing effect of the lock member 200 when the handle 300 is rotated.

As shown in FIGS. 10-11, when the handle 300 is in the open position, the locking member 200 is in the retracted position and the sliding protrusion 330 slides to the first position 2311. However, since the locking member 200 is also acted upon by the reset member 400, the reset member 400 has a tendency to move the locking member 200 toward the extended position when in the retracted position.

The locking member 200 pushes the sliding protrusion 330 of the handle 300 by the reset member 400. The sliding protrusion 330, being pushed, will have a tendency to move from the first position 2311 to the second position 2312. If the user no longer applies force to the handle 300, the locking member 200 is moved from the retracted position to the extended position by the restoring member 400, and the inclined surface 231 of the locking member 200 pushes the sliding protrusion 330 of the handle 300 to rotate the handle 300 from the open position to the latched position.

In order to stop the handle 300 at the open position, the following structure may be further included.

Illustratively, as shown in fig. 7 to 9, the first position 2311 is located at an end of the inclined surface 231, and the sliding groove 230 further has a flat surface 232 connected to the inclined surface 231 at the end, the flat surface 232 extending in a circumferential direction of the shaft hole 220. The handle 300 also has a holding position, which is the end state of the open position. The holding position may correspond to a fixed angle to which the handle 300 is rotated or may be an angular range to which the handle 300 is rotated. When the handle 300 is in the holding position, the sliding projection 330 abuts against the flat surface 232, and at this time, the locking member 200 is in the retracted position. When the end of the sliding protrusion 330 moves to the flat surface 232, the handle 300 is not rotated even if the locking member 200 is pushed by the reset member 400 to the sliding protrusion 330.

Thus, by providing the flat surface 232 in the sliding groove 230, when the handle 300 is rotated to the holding position, the handle 300 can stay at the position even if the user does not manipulate the handle 300 any more, without worrying about the handle being rotated back to the engaging position due to the reaction force of the inclined surface 231 against the sliding protrusion 330 by releasing the hand.

Illustratively, on the locking member 200, the inclined surface 231 of the sliding groove 230 is parallel to the side surface 241 of the notch 240.

With this arrangement, the sliding protrusion 330 and the first stopper 310 can move synchronously on the inclined surface 231 of the sliding groove 230 and the side surface 241 of the recess 240 during the rotation of the handle 300 about the pivot O-O, and there is no possibility that the inclined surface 231 and the side surface 241 are restricted with each other due to non-parallelism during the rotation of the handle 300, which may result in the unsmooth rotation of the handle 300. The smoothness of the handle 300 in the process of rotating from the opening position to the buckling position is improved, and the use experience of a user is improved.

The utility model discloses a another aspect still provides a purifier, is provided with locking groove 510 on this purifier, can hold the sticking department that stretches out to the filter core 10 outside to lock between filter core 10 and the purifier. This purifier still includes any kind of filter core as above, no longer gives unnecessary details.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A filter cartridge, characterized by comprising a body (100) and a handle (300),

the handle is pivotally connected to the body through a pin shaft (320), the handle can pivot between a buckling position and an opening position around the pin shaft, a first limiting part (310) is arranged on the handle, and when the handle pivots between the buckling position and the opening position, the first limiting part has a rotating path rotating around the pin shaft; and

the body comprises a locking piece (200) which is movably arranged on the body between a retracted position and an extended position along the axial direction of the pin shaft, a second limiting part (210) is arranged on the locking piece,

wherein when the locking element is in the retracted position, the second position-limiting portion is located on the rotational path of the first position-limiting portion; when the locking piece is located at the extending position, the first limiting portion and the second limiting portion are mutually staggered along the axial direction of the pin shaft, so that the second limiting portion is located outside the rotating path of the first limiting portion.

2. The filter cartridge according to claim 1, wherein the pin (320) is provided on the handle (300), the locking member (200) is provided with a shaft hole (220) extending in an axial direction of the pin, the pin is inserted into the shaft hole, the second stopper (210) is provided on a side wall of the shaft hole, and the first stopper (310) is provided on an outer wall of the pin.

3. The filter cartridge according to claim 2, wherein a recess (240) and a platform (250) connected to an opening edge of the recess are provided on a side wall of the shaft hole (220), the recess being recessed with respect to the platform along an extending direction of the shaft hole, the platform being the second stopper portion (210), wherein the first stopper portion (310) is received in the recess when the locking member is in the retracted position and the handle (300) is in the open position, and the first stopper portion abuts against the platform in an axial direction of the pin shaft (320) when the locking member (200) is in the extended position and the handle is in the fastening position.

4. The filter cartridge according to claim 3, wherein the recess (240) is tapered inward from the end surface of the shaft hole (220) along the extension direction of the shaft hole, and wherein the first stopper (310) is engaged with the side surface of the recess at any point in the rotational path in the recess.

5. The filter cartridge according to claim 4, wherein said side wall of said axial hole (220) is further provided with a sliding groove (230), said pin (320) is further provided with a sliding projection (330) receivable in said sliding groove, said filter cartridge further comprises a reset member (400) connected to said locking member (200), wherein said sliding groove has a slope (231) inclined with respect to the axial direction of said pin, wherein said sliding projection abuts against a first position (2311) of said slope when said handle (300) is in said open position, and said locking member is in said retracted position; and when the handle is in the snap-fit position, the sliding projection abuts against a second position (2312) of the inclined surface, the locking member is in the extended position, and the first position is located outside the second position in the axial direction;

the slope of the sliding groove is parallel to the side surface (241) of the notch (240).

6. The filter cartridge according to claim 2, characterised in that the portion of the pin (320) provided with the first limit stop (310) has a smaller diameter than the other portions.

7. The filter cartridge according to claim 1 or 2, wherein at least one of the second stopper portion (210) and the first stopper portion (310) is a stopper projection.

8. The filter cartridge according to any of the claims from 2 to 4 and from 6, characterised in that the side wall of the axial hole (220) is further provided with a sliding groove (230), the pin (320) is further provided with a sliding projection (330) which can be housed in the sliding groove, the filter cartridge further comprises a return element (400) connected to the locking element (200),

wherein the sliding groove has a slope (231) inclined with respect to the axial direction of the pin, wherein the sliding protrusion abuts against a first position (2311) of the slope when the handle (300) is in the open position, and the locking member is in the retracted position; and when the handle is in the snap-fit position, the sliding projection abuts against a second position (2312) of the inclined surface, the locking member is in the extended position, and the first position is located outside the second position along the axial direction.

9. The cartridge of claim 8, wherein the first position (2311) is at an end of the ramp (231), the sliding groove (230) further having a flat surface (232) connected to the ramp at the end, the flat surface extending in a circumferential direction of the axial bore, the handle (300) further having a holding position, the sliding projection (330) abutting the flat surface when the handle is in the holding position, the locking member (200) being in the retracted position.

10. The filter cartridge according to claim 8, wherein said pin (320) is inserted into said axial hole (220) from the outside in the axial direction thereof, and said reset member (400) is used to return said locking member (200) from said retracted position to said extended position.

11. The filter cartridge according to claim 8, wherein said pin (320) is inserted into said axial hole (220) from the inside in the axial direction thereof, and said reset member (400) is used to return said locking member (200) from said extended position to said retracted position.

12. The utility model provides a water purifier, its characterized in that, be provided with locking groove (510) on the water purifier, the water purifier still includes:

the cartridge of any of claims 1-11, said locking element (200) being inserted into said locking groove.