CN107321041B - Water purifier with conveniently replaced filter element - Google Patents

Abstract

The invention discloses a water purifier with a conveniently replaced filter element, which comprises an outer box body with an opening at the front side, a filter element assembly, a button assembly and a water path joint, wherein the filter element assembly, the button assembly and the water path joint are arranged in the outer box body; the water purifier also comprises a filter element locking mechanism which can lock the filter element component with the outer box body, the filter element locking mechanism comprises a clamping block arranged on the back surface of the filter element and a push rod arranged on the rear side of the outer box body, and the push rod can be clamped with the clamping block to lock the filter element component and is pressed down to be separated from the clamping block when the button component moves backwards so as to unlock the filter element component; the water purifier also comprises a pushing power-assisted mechanism which applies forward pushing force to the filter element assembly, the pushing power-assisted mechanism comprises a lever and a pushing block connected with the lever, and the lever is driven by the button assembly to rotate after the filter element assembly is unlocked so that the pushing block can penetrate through the rear side wall of the outer box body to push forwards.

Description

Water purifier with conveniently replaced filter element

Technical Field

The invention relates to a water purifier, in particular to a water purifier with a filter element convenient to replace.

Background

The mounting means of traditional joint formula water purifier filter core mainly has: the first is to rotate left and right, then pull the filter element downwards until the buckle is disengaged, and then take out the filter element; the second is to move the filter element to a certain angle, then rotate left and right, pull the filter element down until the buckle is disengaged, take out the filter element. The two clamping type core changing modes are inconvenient, and replacement personnel are required to squat, hold the filter element with both hands and then operate. When the filter element label is installed, the filter element is difficult to install, the upper buckling structure and the lower buckling structure need to be aligned, then the front and the back of the filter element label need to be considered, and then the filter element is installed in a squatting mode. If the space above and below the cabinet is limited, the core is further inconvenient to replace.

The filter element is replaced from the side surface, the filter element does not need to be replaced by squatting, the upper buckling mechanism and the lower buckling mechanism do not need to be aligned, the front and rear positions of the filter element label do not need to be considered, the upper space position and the lower space position of the cupboard do not need to be considered, and the filter element is taken out from the side surface, so that inconvenience is avoided. Compared with the traditional core changing mode, the core changing device is a more humanized and more convenient operation mode.

The mode of present side renew cartridge, the chinese patent application who discloses as application number 201510186801.6 discloses a dismouting renew cartridge water purifier, including filter core and box body, the both sides on box body upper portion are the inlet outlet respectively, and the upper end of filter core is equipped with the inlet outlet, is equipped with one on the box body and can realizes the drawer action and be used for installing the base of filter core, is equipped with on the base to be used for realizing the filter core from the actuating mechanism of quick assembly disassembly on the box body. However, in this water filter, when the cartridge is removed by one-touch or one-pull (one operation), the cartridge is discharged by opening the water filter door panel, and the cartridge is likely to leak due to an erroneous operation.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides a water purifier which prevents water leakage caused by misoperation and is convenient for replacing a filter element.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a convenient water purifier of renew cartridge, includes front side open-ended outer box, sets up filter element group spare, button assembly in the outer box to and water route joint, filter element group spare includes filter core and business turn over water swivel, its characterized in that: the water path joint is positioned at the rear side of the outer box body, and the water inlet and outlet joint penetrates through the rear side wall of the outer box body to be in inserted fit with the water path joint; the water purifier also comprises a filter element locking mechanism capable of locking the filter element assembly with the outer box body, wherein the filter element locking mechanism comprises a clamping block arranged on the back surface of the filter element and a push rod arranged on the rear side of the outer box body, and the push rod can be clamped with the clamping block to lock the filter element assembly and is pressed down to be disengaged from the clamping block when the button assembly moves backwards so as to unlock the filter element assembly; the water purifier still includes the promotion assist drive device who applys forward thrust to filter element group spare, promote assist drive device and include the lever, with the promotion piece that the lever is connected, the lever rotates through the rear side wall of first pivot and outer box to be connected, the lever is driven by button assembly after the unblock of filter element group spare and is rotated and make the back lateral wall that promotes the piece and pass outer box to push forward, the distance that promotes the piece and move forward is not more than the distance between the rear side wall of water route joint and outer box.

In order to facilitate the pushing block to penetrate through the rear side wall of the outer box to push forwards when the lever is pushed to rotate by the button assembly, the top of the lever corresponds to the button assembly, the lower part of the lever is rotatably connected with the pushing block through a second rotating shaft, a through groove with a front opening and a rear opening is formed in the lower part of the rear side wall of the outer box, and the pushing block penetrates through the through groove.

In order to facilitate the limitation of the moving path of the pushing block, the pushing assisting mechanism further comprises a guide groove which is arranged on the rear side wall of the outer box body and corresponds to the through groove in position, and the front opening and the rear opening of the guide groove are opened.

For the convenience of lever resetting, the push-out power-assisted mechanism further comprises a tension spring, a fixing frame is arranged on the rear side wall of the outer box body, one end of the tension spring is connected with the lever, and the other end of the tension spring is connected to the fixing frame, so that the lever keeps rotating to drive the push block to move backwards.

Preferably, in order to keep the lever to be pushed to rotate after the filter element assembly is unlocked, the button assembly comprises a pressing face frame, the rear end of the pressing face frame is provided with a pressing portion, the rear end of the pressing portion gradually inclines downwards forwards to form an inclined first pressing face, the push rod comprises a first push rod, the top of the first push rod gradually inclines downwards from back to front to form an inclined second pressing face, the first pressing face and the second pressing face are matched, the lever is located on the rear side of the first push rod, and the lever and the rear end of the pressing portion at least partially overlap in the vertical direction.

In order to facilitate the locking and unlocking of the filter element assembly, the push rod further comprises a second push rod and a third push rod which are positioned between the first push rod and the rear side wall of the outer box body and are oppositely arranged in the left-right direction, the opposite side surfaces of the second push rod and the third push rod are spliced to form a clamping groove matched with a clamping block at the back of the filter element, the second push rod and the third push rod keep a trend of mutually drawing close to enable the clamping groove to clamp the clamping block tightly, the first push rod comprises a push rod main body, and the push rod main body pushes the second push rod and the third push rod to be mutually far away when the first push rod moves downwards, so that the filter element assembly is unlocked.

In order to facilitate the first push rod to push the second push rod and the third push rod away in the downward moving process so as to unlock the filter element assembly, a push block is arranged on the front side of the push rod main body, the push block is triangular, the upper portion of the push block is larger than the lower portion of the push block, a first push inclined plane which is gradually away from the third push rod and extends in an upward inclined mode is further arranged on the side face, opposite to the third push rod, of the second push rod, a second push inclined plane which is gradually away from the second push rod and extends in an upward inclined mode is further arranged on the side face, opposite to the third push rod, of the third push rod, the first push inclined plane and the second push inclined plane are corresponding in position and are matched with each other, and the push block is accommodated between the first push inclined plane and the second push inclined plane.

In order to limit the moving paths of the second push rod and the third push rod, a guide rod is further arranged on one side, facing the third push rod, of the second push rod, a groove recessed away from the second push rod is further formed on one side, facing the second push rod, of the third push rod, and the guide rod is inserted into the groove.

In order to limit the moving path of the first push rod, the filter element locking mechanism further comprises a cover plate fixed on the rear side wall of the outer box body, the first push rod is limited between the rear side wall of the outer box body and the cover plate, the position, corresponding to the push rod main body, of the cover plate is recessed backwards to form a sliding groove, and the push rod main body is arranged in the sliding groove and moves along the sliding groove.

In order to facilitate the resetting of the first push rod, a first through hole is formed in the rear side wall of the outer box body, a second through hole is formed in the first push rod, the push rod main body is located below the front side of the bottom surface of the second through hole, a positioning pipe with an upper opening is arranged at the top of the cover plate, a first reset spring which exerts reset force on the first push rod and keeps moving upwards is arranged between the cover plate and the first push rod, part of the first reset spring is contained in the positioning pipe, the lower end of the first reset spring is abutted to the bottom of the positioning pipe, and the upper end of the first reset spring is abutted to the bottom surface of the second through hole of the first push rod.

In order to facilitate the locking of the filter element assembly and the resetting of the second push rod and the third push rod, a plurality of first positioning pieces extending in the direction away from the third push rod are arranged on the side face of the second push rod away from the third push rod, a first stop piece is arranged on the rear side wall of the outer box body at the position corresponding to the first positioning pieces, the second return spring is partially arranged in the first positioning pieces, one end of the second return spring is abutted against the side face of the second push rod away from the third push rod, and the other end of the second return spring is abutted against the first stop piece; the side that the second push rod was kept away from to the third push rod is provided with a plurality of second setting elements that extend to keeping away from the second push rod direction, the position corresponding with the second setting element on the rear side wall of outer box is provided with the second stop part, third reset spring part is arranged in the second setting element, the one end of third reset spring and the side butt that the second push rod was kept away from to the third push rod, the other end of third reset spring then with the second stop part butt.

For making during manual operation, the business turn over water swivel of filter element group spare can throw off with water route joint, the second through-hole has been seted up on the rear side wall of outer box, water route joint includes joint main part and the end cover that corresponds with second through-hole position, the end cover sets up the front side at the joint main part, business turn over water swivel passes the second through-hole and inserts the joint main part, in vertical planar projection, the end cover is partial at least to be located outside the second through-hole, makes the end cover can with the rear side wall butt of outer box.

Be connected with water route joint for the business turn over water connectors of filter element group spare, be formed with the horn mouth with the position that every pipeline is corresponding in the joint main part in the end cover, the bore of horn mouth reduces gradually backward in the past.

In order to limit the moving path of the water path joint, a guide piece is further fixed on the rear side wall of the outer box body, the guide piece is in a hollow shape with openings at the front end and the rear end, and the water path joint moves forwards and backwards in the guide piece relative to the guide piece.

Compared with the prior art, the invention has the advantages that: by arranging the pushing assisting mechanism, the filter element assembly can be automatically pushed after being unlocked, and the pushing distance is not more than the distance between the water way joint and the outer box body, so that water leakage caused by misoperation can be effectively avoided; through the arrangement of the button assembly and the locking mechanism matched with the button assembly, the button assembly can be operated conveniently to unlock the filter element assembly, and meanwhile, the installation of the filter element assembly is facilitated.

Drawings

Fig. 1 is a schematic front view of a water purifier according to the present invention;

FIG. 2 is a rear view schematically illustrating a water purifier according to the present invention;

fig. 3 is a sectional view of a water purifier of the present invention;

FIG. 4 is an exploded view of the water purifier according to the present invention;

FIG. 5 is a schematic view illustrating a partially exploded structure of a water purifier according to the present invention;

FIG. 6 is an exploded view of the waterway connector of the water purifier according to the present invention;

FIG. 7 is a schematic view of a first push rod of the water purifier according to the present invention;

fig. 8 is a schematic view of a cover plate of the water purifier of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following examples of the drawings.

Referring to fig. 1 to 5, a water purifier convenient for replacing a filter element comprises an outer box 1 of the water purifier, a filter element assembly 2 arranged in the outer box 1, and a button assembly 3 arranged in the outer box 1 and above the filter element 2, so that the filter element assembly 2 can be replaced by operating the button assembly 3. In addition, a waterway connector 4 is connected to the filter element 2 so as to facilitate water inlet and outlet. In the present embodiment, as an example of one filter element 2, alternatively, a plurality of filter elements 2 may be arranged in parallel and at intervals in the outer box 1. For convenience of description, hereinafter, "front" refers to a side close to the user when operated by the user, "rear" refers to a side away from the user when operated by the user, and "left" and "right" both refer to respective orientations when operated by the user.

The outer case 1 has a hollow rectangular parallelepiped shape and is open at the front side so that the filter element module 2 can be taken out and put back from the front side of the outer case 1. The filter element assembly 2 comprises a filter element 21 and a water inlet and outlet connector 22, wherein the water inlet and outlet connector 22 is used for being connected with the waterway connector 4, so that tap water provided by an external water source enters the filter element 21, and purified water filtered by the filter element 21 is conveniently communicated with the external waterway connector 4 through the waterway connector and the like. In this embodiment, business turn over water swivel 22 is three pipeline, corresponds running water, domestic water and water purification respectively, and is corresponding, and waterway connector 4 also includes three pipeline, and business turn over water swivel 22 cooperates through the mode of pegging graft with waterway connector 4.

The button assembly 3 includes a pressing face frame 31, the pressing face frame 31 includes a top face 311 located above and a pressing portion 312 located below the top face 311, and a rear end of the top face 311 may be flush with a rear end of the pressing portion 312. The rear end of the pressing portion 312 is gradually inclined downward forward to form an inclined first pressing surface 313. When the user operates the button assembly 3, that is, applies a rearward force to the push face frame 31, the push face frame 31 as a whole can be pushed rearward.

The front side 314 of the pressing surface frame 31 is provided with a pressing rod 32 extending backward, the rear side wall 11 of the outer case 1 is provided with a positioning sleeve 12, the pressing rod 32 is provided with a fourth return spring 33, the rear end of the pressing rod 32 is inserted into the positioning sleeve 12, one end of the fourth return spring 33 abuts against the front side 314, and the other end abuts against the positioning sleeve 12. When the push button assembly 3 is not stressed, the fourth return spring 33 is in a natural extension state, when the push button assembly 3 is pressed backwards, the fourth return spring 33 is compressed, and after the external force disappears, the pressing surface frame 31 is reset forwards under the action of the fourth return spring 33.

Referring to fig. 3 and 6, the joint body 41 and the end cap 42 of the waterway connector 4, the end cap 42 is disposed at the front side of the joint body 41, a bell-mouth 421 is formed in the end cap 42 at a position corresponding to each pipe in the joint body 41, and the diameter of the bell-mouth 421 is gradually reduced from front to rear, thereby guiding the water inlet and outlet connector 22 to be inserted into the joint body 41. First through-hole 13 has been seted up on the rear wall 11 of outer box 1, waterway connector 4 is installed in the position of first through-hole 13, and in the projection of vertical plane, end cover 42 is at least partially located outside first through-hole 13, make from this when business turn over water swivel 22 of filter element group spare 2 drives waterway connector 4 and moves forward together, end cover 42 when moving the position of first through-hole 13, can with the peripheral butt of first through-hole 13, thereby further stimulate filter element group spare 2 back, because waterway connector 4 is blockked by outer box 1 can not move and break away from with business turn over water swivel 22.

The periphery of water route joint 4 is equipped with guide 7, and guide 7 is preceding, back both ends open-ended cavity form, and guide 7 is fixed with the back lateral wall 11 of outer box 1, and when water route joint 4 moved along with filter element group spare 2, guide 7 can play the effect of direction to water route joint 4.

Referring to fig. 4, 5 and 7, the water purifier further includes a filter element locking mechanism including a first push rod 51, a second push rod 52, a third push rod 53 and a cover plate 54. Wherein, the first push rod 51 is disposed at the rear side of the outer case 1, extends in the vertical direction, the top of the first push rod 51 is gradually inclined downwards from back to front, thereby forming an inclined second pressing surface 511, and the position and the inclination angle of the second pressing surface 511 are adapted to the first pressing surface 313, so that when the first pressing surface 313 moves backwards, only the first push rod 51 can be pushed to move downwards because the first push rod 51 is limited by the cover plate 54 (which will be described in detail below).

The first push rod 51 is provided with a second through hole 512 at a position corresponding to the first through hole 13 of the outer case 1, the water supply path joint 4 passes through, and the guide 7 may be disposed between the first push rod 51 and the outer case 1. The first push rod 51 further includes a push rod main body 513, and the push rod main body 513 is located below the front side of the bottom surface of the second through hole 512. A pushing block 514 protruding forward is provided on the front side of the pusher body 513, and the pushing block 514 is a triangle with a large top and a small bottom. In the present embodiment, the pushing block 514 has three pushing blocks arranged at intervals up and down.

Referring to fig. 2, 4 and 8, the cover plate 54 is disposed at the rear side of the main body 513 of the first push rod 51, and the left and right sides of the cover plate 54 extend out of the main body 513, so as to be fixed to the rear wall 11 of the outer case 1. The cover plate 54 is recessed rearward at a position corresponding to the push rod main body 513 to form a slide groove 541, the push rod main body 513 is disposed in the slide groove 541, thereby limiting the push rod main body 513 from moving rearward and moving only in a vertical direction along the slide groove 541, and the slide groove 541 also serves as a guide for the movement of the first push rod 51.

The top of the cover plate 54 is provided with a positioning tube 542 with an upper opening, a first return spring 543 for applying a return force to the first push rod 51 and keeping the first push rod moving upwards is arranged between the cover plate 54 and the first push rod 51, the first return spring 543 is partially accommodated in the positioning tube 542, the lower end part of the first return spring is abutted against the bottom of the positioning tube 542, and the upper end part of the first return spring is abutted against the bottom surface of the second through hole 512 of the first push rod 51. When the filter cartridge assembly 2 is in an initial state of being mounted in the outer case 1 to be locked, the first return spring 543 is in a natural state or slightly compressed, and when the button assembly 3 is pressed, the first push rod 51 moves downward, and the first return spring 543 is compressed.

The second push rod 52 and the third push rod 53 are disposed at the front side of the first push rod 51 between the first push rod 51 and the outer case 1. The second push rod 52 and the third push rod 53 are oppositely arranged left and right, wherein the second push rod 52 is arranged at the left side behind the outer box body 1, and the third push rod 53 is arranged at the right side behind the outer box body 1. The side surface of the second push rod 52 far away from the third push rod 53 is provided with a plurality of first positioning members 521 extending in the direction far away from the third push rod 53, the first positioning members 521 may be in the shape of a hollow semi-cylinder with an open front, a first stop member 111 is arranged on the rear side wall 11 of the outer case 1 at a position corresponding to the first positioning members 521, the second push rod 52 keeps a tendency of moving towards the third push rod 53 through a second return spring 522, a part of the second return spring 522 is arranged in the first positioning member 521, one end of the second return spring 522 abuts against the side surface of the second push rod 52 far away from the third push rod 53, and the other end abuts against the first stop member 111. The second return spring 522 is in a natural state when the filter cartridge assembly 2 is in an initial state of being mounted in the outer case 1 to be locked.

The side of the third push rod 53 far from the second push rod 52 is provided with a plurality of second positioning parts 531 extending in the direction far from the second push rod 52, the second positioning parts 531 may be in the shape of a hollow semi-cylinder with a front opening, a second stop part 112 is arranged on the rear side wall 11 of the outer case 1 at a position corresponding to the second positioning parts 531, the third push rod 53 keeps the trend of moving towards the second push rod 52 through a third return spring 532, the third return spring 532 is partially arranged in the second positioning parts 531, one end of the third return spring 532 abuts against the side of the third push rod 53 far from the second push rod 52, and the other end abuts against the second stop part 112. The third return spring 532 is in a natural state when the filter cartridge assembly 2 is installed in the initial state in the outer case 1. In the present embodiment, the first positioning element 521 and the second positioning element 531 are four and are arranged at intervals, and are respectively and uniformly arranged in the vertical extending direction of the second push rod 52 and the third push rod 53, so that the second push rod 52 and the third push rod 53 can be reset and move in a better balance.

The side surface of the second push rod 52 opposite to the third push rod 53 is formed with a first clamping groove 523 recessed away from the third push rod 53, the side surface of the third push rod 53 opposite to the second push rod 52 is formed with a second clamping groove 533 recessed away from the second push rod 52, the first clamping groove 523 and the second clamping groove 533 are preferably semicircular, and when the second push rod 52 and the third push rod 53 are attached tightly, the first clamping groove 523 and the second clamping groove 533 are spliced into a complete circular clamping groove. In this embodiment, there are two first card slots 523 and two second card slots 533.

A clamping block 55 matched with the first clamping groove 523 and the second clamping groove 533 is arranged at the rear side of the filter element 21, and the clamping block 55 penetrates through the rear side wall 11 of the outer box 1. The latch 55 is circular, when the second push rod 52 and the third push rod 53 are tightly attached, the first catch 523 and the second catch 533 clamp the latch 55 at both sides of the latch 55, and the rear sides of the second push rod 52 and the third push rod 53 are blocked by the first push rod 51, whereby the filter cartridge assembly 2 is fixed with respect to the outer case 1 and cannot be drawn out.

One of the second push rod 52 and the third push rod 53, in this embodiment, a guide rod 524 is further provided on a side facing the third push rod 53 for the second push rod 52, and the other of the second push rod 52 and the third push rod 53, in this embodiment, a groove 534 recessed away from the second push rod 52 is further formed on a side facing the second push rod 52 for the third push rod 53, and the guide rod 524 may be inserted into the groove 534, thereby guiding the movement of the second push rod 52 and the third push rod 53.

The side surface of the second push rod 52 opposite to the third push rod 53 is further provided with a first push inclined surface 525 which gradually inclines upwards away from the third push rod 53, and the first push inclined surface 525 is arranged in a staggered manner with the first clamping groove 523 in the vertical direction; the third push rod 53 also has a second push inclined surface 535 extending obliquely upward away from the second push rod 52 on the side opposite to the second push rod 52, and the second push inclined surface 535 is vertically staggered with the second catching groove 533. The first push ramp 525 and the second push ramp 535 are correspondingly positioned and mate with each other. When the second push rod 52 and the third push rod 53 are tightly attached, the first push inclined surface 525 and the second push inclined surface 535 form a triangular space matched with the push block 514, and the push block 514 is just accommodated between the first push inclined surface 525 and the second push inclined surface 535. When the first push rod 51 moves downwards, the push block 514 moves downwards to push the first push inclined plane 525 and the second push inclined plane 535 to the left and right respectively, so that the second push rod 52 and the third push rod 53 are separated, the first catching groove 523 and the second catching groove 533 no longer clamp the catching block 55 of the filter element assembly 2, and the filter element assembly 2 can move relative to the outer case 1.

The water purifier also comprises a push-out power-assisted mechanism which comprises a lever 61 and a push block 62. The top of the lever 61 is located at the rear side of the second pressing surface 511 of the first push rod 51, and the lever 61 at least partially overlaps the rear end of the pressing portion 312 in the vertical direction. In order to balance the biasing force, two levers 61 are provided, respectively, at the rear of the outer case 1 and on the left and right sides of the first push rod 51. Each lever 61 extends from a corresponding position on the upper portion of the rear side wall 11 of the outer case 1 to a corresponding position on the lower portion. A first rotating shaft 611 is connected between the two levers 61. The left and right sides of the rear sidewall 11 of the outer case 1 are respectively provided with a first rotating bracket 14, and both ends of the first rotating shaft 611 respectively penetrate through the first rotating bracket 14 and then are connected with the lever 61. Thereby, the lever 61 can rotate relative to the outer case 1 with the joint with the first rotating bracket 14 as a fulcrum.

A second rotation shaft 612 may be connected between lower portions of the two levers 61. The lower part of the rear side wall 11 of the outer box body 1 is provided with a through groove 15 with front and rear openings, the push-out power-assisted mechanism further comprises a guide groove 63 which is arranged on the rear side wall 11 of the outer box body 1 and corresponds to the through groove 15 in position and is provided with front and rear openings, and the push block 62 is arranged in the guide groove 63 and is matched with the through groove 15. The left and right sides of the pushing block 62 are respectively provided with a second rotating support 621, and both ends of the second rotating shaft 612 respectively pass through the second rotating support 621 and then are connected with the lever 61. Thereby, the lever 61 can be rotated relative to the push block 62 with the joint with the second rotating bracket 621 as a fulcrum.

The push-out assisting mechanism further comprises a tension spring 64, a fixing frame 16 is arranged on the rear side wall 11 of the outer box body 1, one end of the tension spring 64 is connected with the lever 61, the other end of the tension spring 64 is connected with the fixing frame 16, and the tension spring 64 enables the lever 61 to keep rotating reversely so as to enable the push block 62 to move backwards.

When the filter element assembly 2 needs to be replaced:

1) First, the button assembly 3 is pressed, so that the first pressing surface 313 of the pressing surface frame 31 is gradually moved backward, and reacts with the second pressing surface 511 of the first push rod 51 to gradually push the first push rod 51 downward, and at the same time, the pressing rod 32 is gradually moved backward, so that the first return spring 543 and the fourth return spring 33 are compressed; during the downward movement of the first push rod 51, the push block 514 moves downward to push the second push rod 52 and the second push rod 53 to the left and right, respectively, and the second return spring 522 and the third return spring 532 are compressed, so that the first catch 523 and the second catch 533 no longer clamp the catch 55 of the filter element assembly 2, and at this time, the filter element assembly 2 can move relative to the outer case 1;

2) Then, the pressing frame 31 is pressed backwards continuously, the rear end of the pressing part 312 abuts against the lever 61, thereby pushing the top of the lever 61 backwards, so that the lever 61 rotates around the connection point with the first rotating bracket 14, the lower part of the lever 61 rotates forwards, the pushing block 62 moves forwards through the pushing block 62, so that the pushing block 62 passes through the through slot 15 forwards along the guide slot 63 to contact the filter element assembly 2, the filter element assembly 2 is pushed forwards for a certain distance, at the same time, the tension spring 64 is stretched, the lever 61 rotates to drive the pushing block 62 to move for a distance no more than the distance between the waterway connector 4 and the rear side wall 11 of the outer box 1, therefore, the waterway connector 4 and the water inlet/outlet connector 22 of the filter element assembly 2 still keep connected, when the user finds that the button assembly 3 is operated by mistake, the filter element assembly 2 can be pushed backwards to the initial fixed position, and because the waterway connector 4 still keeps connected with the filter element assembly 2, therefore, water leakage caused by mistake is avoided; when the user confirms that the filter element assembly 2 is to be replaced, the next step is performed;

3) With filter element group spare 2 manual pulling forward, when water route joint 4's end cover 42 and outer box body 1's rear side wall 11 butt, continue to pull forward then can make filter element group spare 2 business turn over water swivel 22 and water route joint 4 throw off to can pull out outer box body 1 forward with filter element group spare 2 whole and change, each reset spring and extension spring 64 make filter element locking mechanical system and promote assist drive device and reset.

When the filter element assembly 2 after being replaced needs to be installed, the filter element assembly 2 only needs to be placed into the outer box 1 and pushed backwards, in the process, the clamping block 55 is clamped between the first clamping groove 523 and the second clamping groove 533 and clamped again by the second push rod 52 and the third push rod 53, and the filter element assembly 2 and the outer box 1 are installed.

Claims (14)

1. The utility model provides a convenient renew cartridge's water purifier, includes front side open-ended outer box (1), sets up filter element group spare (2), button subassembly (3) in outer box (1) to and water route joint (4), filter element group spare (2) are including filter core (21) and business turn over water swivel (22), its characterized in that:

the water path joint (4) is positioned at the rear side of the outer box body (1), and the water inlet and outlet joint (22) penetrates through the rear side wall (11) of the outer box body (1) to be in inserted fit with the water path joint (4);

the water purifier also comprises a filter element locking mechanism capable of locking the filter element assembly (2) with the outer box body (1), wherein the filter element locking mechanism comprises a clamping block (55) arranged on the back surface of the filter element (21) and a push rod arranged on the rear side of the outer box body (1), the push rod can be clamped with the clamping block (55) to lock the filter element assembly (2), and the push rod is pressed downwards to be separated from the clamping block (55) to unlock the filter element assembly (2) when the button assembly (3) moves backwards;

the water purifier still includes to filter element group spare (2) the promotion assist drive device who applys forward thrust, promote assist drive device and include lever (61), promote piece (62) be connected with lever (61), lever (61) are rotated with rear wall (11) of outer container body (1) through first pivot (611) and are connected, lever (61) are driven by button module (3) after filter element group spare (2) unblock and are rotated and make and promote piece (62) and pass rear wall (11) of outer container body (1) and push forward, the distance that promotes piece (62) and move forward is not more than the distance between rear wall (11) of water route joint (4) and outer container body (1).

2. The water purifier facilitating filter element replacement according to claim 1, wherein: the top of the lever (61) corresponds to the button assembly (3), the lower portion of the lever (61) is rotatably connected with the pushing block (62) through a second rotating shaft (612), a through groove (15) with front and rear openings is formed in the lower portion of the rear side wall (11) of the outer box body (1), and the pushing block (62) can penetrate through the through groove (15).

3. The water purifier facilitating replacement of a filter element according to claim 2, wherein: the pushing power-assisted mechanism further comprises a guide groove (63) which is arranged on the rear side wall (11) of the outer box body (1) and corresponds to the through groove (15) in position and is provided with a front opening and a rear opening, and the pushing block (62) is arranged in the guide groove (63).

4. The water purifier facilitating replacement of a filter element according to claim 1, wherein: promote assist drive device still includes extension spring (64), be provided with mount (16) on rear side wall (11) of outer box (1), the one end and the lever (61) of extension spring (64) are connected, the other end of extension spring (64) then is connected to mount (16), thereby make lever (61) keep rotating and drive the trend that promotes piece (62) backward movement.

5. The water purifier facilitating replacement of a filter element according to claim 1, wherein: the button assembly (3) comprises a pressing face frame (31), a pressing portion (312) is arranged at the rear end of the pressing face frame (31), the rear end of the pressing portion (312) is gradually inclined downwards forwards to form an inclined first pressing face (313), the push rod comprises a first push rod (51), the top of the first push rod (51) is gradually inclined downwards from back to front to form an inclined second pressing face (511), the first pressing face (313) is matched with the second pressing face (511), the lever (61) is located on the rear side of the first push rod (51), and the lever (61) and the rear end of the pressing portion (312) are at least partially overlapped in the vertical direction.

6. The water purifier facilitating replacement of a filter element according to claim 5, wherein: the push rod further comprises a second push rod (52) and a third push rod (53) which are located between the first push rod (51) and the rear side wall (11) of the outer box body (1) and are oppositely arranged in the left-right direction, clamping grooves matched with clamping blocks (55) on the back face of the filter element (21) are formed in the opposite side faces of the second push rod (52) and the third push rod (53) in a splicing mode, the second push rod (52) and the third push rod (53) keep a mutually close trend to enable the clamping grooves to clamp the clamping blocks (55), the first push rod (51) comprises a push rod main body (513), and the push rod main body (513) pushes the second push rod (52) and the third push rod (53) to be away from each other when the first push rod (51) moves downwards to enable the filter element assembly (2) to be unlocked.

7. The water purifier facilitating replacement of a filter element according to claim 6, wherein: the front side of the push rod main body (513) is provided with a push block (514), the push block (514) is in a triangle shape with a large upper part and a small lower part, the side face, opposite to the second push rod (52) and the third push rod (53), of the second push rod (52) is further provided with a first push inclined face (525) gradually far away from the third push rod (53) and extending upwards in an inclined mode, the side face, opposite to the third push rod (53) and the second push rod (52), of the third push rod (53) is further provided with a second push inclined face (535) gradually far away from the second push rod (52) and extending upwards in an inclined mode, the first push inclined face (525) and the second push inclined face (535) correspond in position and are matched with each other, and the push block (514) is accommodated between the first push inclined face (525) and the second push inclined face (535).

8. The water purifier facilitating filter element replacement according to claim 6, wherein: and a guide rod (524) is further arranged on one side, facing the third push rod (53), of the second push rod (52), a groove (534) recessed towards the side far away from the second push rod (52) is further formed on one side, facing the second push rod (52), of the third push rod (53), and the guide rod (524) is inserted into the groove (534).

9. The water purifier facilitating filter element replacement according to claim 6, wherein: the filter element locking mechanism further comprises a cover plate (54) fixed on the rear side wall (11) of the outer box body (1), the first push rod (51) is limited between the rear side wall (11) of the outer box body (1) and the cover plate (54), the position, corresponding to the push rod main body (513), of the cover plate (54) is recessed backwards to form a sliding groove (541), and the push rod main body (513) is placed in the sliding groove (541) and moves along the sliding groove (541).

10. The water purifier facilitating replacement of the filter element as set forth in claim 9, wherein: the outer box is characterized in that a first through hole (13) is formed in the rear side wall (11) of the outer box body (1), a second through hole (512) is formed in the first push rod (51), the push rod main body (513) is located below the front side of the bottom surface of the second through hole (512), a positioning tube (542) with an upper opening is arranged at the top of the cover plate (54), a first return spring (543) which exerts return force on the first push rod (51) and keeps moving upwards is arranged between the cover plate (54) and the first push rod (51), part of the first return spring (543) is accommodated in the positioning tube (542), the lower end of the first return spring is abutted to the bottom of the positioning tube (542), and the upper end of the first return spring (543) is abutted to the bottom surface of the second through hole (512) of the first push rod (51).

11. The water purifier facilitating replacement of a filter element according to claim 6, wherein: a plurality of first positioning pieces (521) extending in the direction away from the third push rod (53) are arranged on the side face, away from the third push rod (53), of the second push rod (52), a first stop piece (111) is arranged on the rear side wall (11) of the outer box body (1) at a position corresponding to the first positioning pieces (521), a second return spring (522) is partially arranged in the first positioning pieces (521), one end of the second return spring (522) is abutted to the side face, away from the third push rod (53), of the second push rod (52), and the other end of the second return spring (522) is abutted to the first stop piece (111); the side of third push rod (53) keeping away from second push rod (52) is provided with a plurality of second setting element (531) that extend to keeping away from second push rod (52) direction, the corresponding position with second setting element (531) is provided with second stop piece (112) on rear sidewall (11) of outer box (1), third reset spring (532) part is arranged in second setting element (531), the side butt that second push rod (52) was kept away from with third push rod (53) to the one end of third reset spring (532), the other end of third reset spring (532) then with second stop piece (112) butt.

12. The water purifier provided with the filter element convenient to replace according to any one of claims 1 to 11, which is characterized in that: first through-hole (13) have been seted up on rear wall (11) of outer box (1), waterway connector (4) include joint main part (41) and end cover (42) that correspond with first through-hole (13) position, end cover (42) set up the front side at joint main part (41), business turn over water joint (22) pass first through-hole (13) and peg graft into joint main part (41), in vertical planar projection, end cover (42) at least part is located outside first through-hole (13), makes end cover (42) can with rear wall (11) butt of outer box (1).

13. The water purifier facilitating replacement of a filter element according to claim 12, wherein: and a bell mouth (421) is formed in the end cover (42) at a position corresponding to each pipeline in the joint main body (41), and the caliber of the bell mouth (421) is gradually reduced from front to back.

14. The water purifier facilitating filter element replacement according to claim 13, wherein: the water channel joint is characterized in that a guide piece (7) is further fixed on the rear side wall (11) of the outer box body (1), the guide piece (7) is in a hollow shape with openings at the front end and the rear end, and the water channel joint (4) moves forwards and backwards in the guide piece (7) relative to the guide piece (7).

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