CN211051046U - Water purifier - Google Patents

Abstract

The utility model provides a water purifier, which comprises a filter base and a filter element, wherein the side surface of the water passing end of the filter element is provided with a clamping hook and a locking groove, the filter base is provided with a receiving groove for receiving the water passing end, the filter base comprises a locking device, the locking device comprises a locking part, a transmission mechanism and a rotary pin, and the locking part and the rotary pin pass through the side wall of the receiving groove and extend to the inner side; the middle part of the transmission mechanism is hinged to the outer side of the side wall, one end of the transmission mechanism abuts against and/or is hinged to the locking piece, and the other end of the transmission mechanism is hinged to the rotary pin; when the filter element moves downwards to a locking position, the rotating pin is pushed by the clamping hook to retract into the side wall along the transverse direction so as to drive the locking piece to be inserted into the locking groove, and the rotating pin is pivoted upwards to be folded into the side wall so that the locking piece is withdrawn from the receiving groove. After the filter element is inserted into the locking position, the filter element and the filter base can be firmly and automatically locked through the locking device.

Description

Water purifier

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a purifier.

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.

However, the direct-insertion type filter element is easy to separate from the filter base, which brings inconvenience to the use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art at least partially, the utility model provides a water purifier. The water purifier comprises a filter base and a filter element, wherein a clamping hook and a locking groove are arranged on the side surface of a water passing end of the filter element, the filter base is provided with a receiving groove for receiving the water passing end, the filter base comprises a locking device, the locking device comprises a locking part, a transmission mechanism and a rotating pin, and the locking part and the rotating pin penetrate through the side wall of the receiving groove and extend inwards; the middle part of the transmission mechanism is hinged to the outer side of the side wall, one end of the transmission mechanism abuts against and/or is hinged to the locking piece, and the other end of the transmission mechanism is hinged to the rotary pin; when the filter element moves downwards to a locking position, the rotating pin is pushed by the clamping hook to retract into the side wall along the transverse direction so as to drive the locking piece to be inserted into the locking groove, and the rotating pin is pivoted upwards to be folded into the side wall so that the locking piece is withdrawn from the receiving groove.

The utility model provides a purifier of formula of cuting straightly, insert the lock position back with its filter core, just can firmly automatic locking with the filter core with straining the seat through locking device.

Illustratively, the receiving slot has a sufficient depth such that the filter cartridge can continue to move downwardly from the locked position to an unlocked position, wherein the swivel pin can extend into the receiving slot and engage the catch when the filter cartridge moves from the locked position to the unlocked position, and can pivot upwardly from the catch to fold into the sidewall when the filter cartridge moves upwardly from the unlocked position.

When the filter element needs to be taken out, the filter element is continuously pushed downwards to move to the unlocking position, and then the filter element is reversely pulled, so that the filter element can be separated from the filter base. The locked filter element is not easy to separate from the filter base, thereby ensuring the quality of products. In addition, the filter element and the filter base are very convenient to lock and unlock, and the operation is simple, so that the user experience is good.

Illustratively, a center of gravity of the swivel pin when collapsed into the sidewall is radially inward of a pivot axis of the swivel pin such that the swivel pin automatically pivots back to an initial state when the filter cartridge is disengaged from the filter base. So set up, can ensure that the installation at every turn of filter core can both be simple and easy, and then improve user experience.

Illustratively, an end of the rotation pin facing an inner side of the receiving groove has a rotation pin slope extending downward from a top surface of the rotation pin to an inner side surface of the rotation pin. Thus, the downward displacement of the filter element can be converted into the horizontal displacement of the rotary pin during the downward movement of the filter element, and the rotary pin can be moved smoothly.

Illustratively, the bottom surface of the swivel pin extends in a transverse direction, the bottom surface being adapted to engage a catch on the filter cartridge to pivot upwardly from the catch into folding into the side wall. Therefore, the clamping hook has a simple structure on the premise of realizing the function of the clamping hook, and is convenient to process and assemble.

For example, a hook inclined surface adapted to the rotating pin inclined surface is arranged on the hook, and the hook inclined surface is used for pushing the rotating pin inclined surface so that the rotating pin retracts into the side wall along the transverse direction. Therefore, in the downward movement process of the filter element, the downward displacement of the filter element can be converted into the horizontal displacement of the rotating pin, and the rotating pin can be moved smoothly.

Illustratively, the retaining groove on the cartridge is of sufficient dimension in the longitudinal direction to allow the cartridge to continue to move downward to an unlocked position when the retaining member is inserted into the retaining groove. This allows downward movement from the locked position to the unlocked position during unlocking of the cartridge.

Illustratively, a lower edge of the retaining groove abuts a lower edge of the retaining member when the cartridge is in the locked position. After the cartridge is inserted into the locked position, the cartridge can be pulled in reverse, thereby ensuring that the cartridge is properly in the locked position.

Illustratively, the rotating pin is positioned below the locking piece, and the hook is positioned below the locking groove. Therefore, the rotating pin can be pivoted upwards just by utilizing the space between the rotating pin and the locking piece, and the overall structure of the filter base is prevented from being influenced too much.

Illustratively, the transmission mechanism comprises a linkage rod and a sliding piece, the middle part of the linkage rod is hinged to the outer side of the side wall, one end of the linkage rod abuts against and/or is hinged to the locking piece, the other end of the linkage rod abuts against and/or is hinged to the sliding piece, and the rotary pin is hinged to the sliding piece. Therefore, the transmission mechanism can have a simple structure and is convenient to process and manufacture.

Illustratively, the slider has a groove within which the rotation pin is hinged to the slider, the groove for limiting the pivot range of the rotation pin. So configured, the locking device can have a simple structure.

The locking device further comprises a reset piece, wherein the reset piece is located between the locking piece and the side wall and used for applying elastic force to the locking piece so that the locking piece can withdraw from the receiving groove when the filter element is separated from the filter base. Thereby, the locking device can be automatically unlocked.

Illustratively, the retaining member includes: a keyway rod extending inboard through the sidewall; and the ejecting piece is vertically connected with the locking groove rod, so that the locking piece is T-shaped, and the resetting piece is positioned between the ejecting piece and the side wall. Therefore, the locking piece has the advantages of simple structure, easiness in processing and the like.

Exemplarily, be provided with on the filter seat and strain a seat mouth of a river and strain a seat check valve, strain a seat check valve and include: the filter base valve core penetrates through the filter base water filtering port; and the filter base elastic element is positioned between the filter base valve core and the filter base, wherein the filter base valve core can move downwards to enable the filter base check valve to be conducted when the filter element moves downwards to the locking position, and can continuously move downwards when the filter element moves from the locking position to the unlocking position. In this way, the filter cartridge can be unlocked by pressing down.

Illustratively, the water end of crossing of filter core is provided with the filter core and crosses mouth of a river and filter core check valve, the filter core check valve includes: the filter element valve core penetrates through the filter element water passing port; and a cartridge elastic member located between the cartridge valve and the cartridge, wherein the cartridge valve is movable downward to render the cartridge check valve conductive when the cartridge moves downward to the locked position, and the position in the cartridge remains unchanged when the cartridge moves from the locked position to the unlocked position. Therefore, when the filter element moves from the locking position to the unlocking position, the filter seat valve element can be better pushed to move downwards.

Illustratively, the filter base comprises a plurality of locking devices which are uniformly arranged along the circumferential direction of the filter base, and the hooks and the locking grooves correspond to the locking devices on the filter element. In this way, the filter cartridge can be firmly fixed in the filter base.

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 water purifier according to an exemplary embodiment of the present invention;

fig. 2 is a perspective view of a filter cartridge and filter base according to an exemplary embodiment of the present invention;

FIG. 3 is a cross-sectional view of the filter cartridge and filter base shown in FIG. 2, with the filter cartridge separated from the filter base;

FIG. 4 is a partial cross-sectional view of the filter cartridge and filter base shown in FIG. 2, with the filter cartridge in a locked position;

FIG. 5 is a partial cross-sectional view of the filter cartridge and filter base shown in FIG. 2, with the filter cartridge moved to an unlocked position;

FIG. 6 is a partial cross-sectional view of the filter cartridge and filter base shown in FIG. 2, with the filter cartridge in an unlocked position;

FIG. 7 is a partial cross-sectional view of the filter cartridge and filter base shown in FIG. 2 with the filter cartridge removed from the filter cartridge; and

fig. 8A-8B are exploded views of a filter base according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a water purifier; 200. a filter element; 210. a water passing end; 212. a filter element water gap; 220. a hook; 222. a hook inclined plane; 230. a locking groove; 240. a filter element check valve; 242. a filter element valve core; 244. A filter element elastic member; 250. a limiting part; 300. a filter base; 310. a receiving groove; 312. a side wall; 320. A water filtering port of the filter base; 330. a filter seat check valve; 332. a filter base valve core; 334. a filter base elastic member; 400. A locking device; 410. a locking member; 412. a keyway locking rod; 414. pushing the ejection piece; 420. a linkage rod; 442. Rotating the pin bevel; 444. a bottom surface; 430. a slider; 432. a groove; 440. rotating the pin; 442. rotating the pin bevel; 450. a support frame; 460. a reset member.

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 water purifier, which comprises a filter base and a filter element. The water purifier is a direct-insertion type water purifier. The filter cartridge can be securely locked to the filter base during insertion into the filter base. When the filter element needs to be unlocked, the filter element is continuously pressed along the inserting direction, so that the filter element and the filter base are unlocked, then the filter element is reversely pulled out, and the unlocking of the filter element and the filter base can be finished. The operations of installing and disassembling the filter element are very simple. The water purifier will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the water purifier 100 is provided with two filter cartridges 200, one of which is locked to a filter base (not shown) in the water purifier and the other of which is taken out of the water purifier.

As shown in fig. 2-3, the water pass end 210 of the filter element 200 is located at the lower end of the filter element 200. The feed end 210 is provided with a cartridge feed opening 212. The filter holder 300 has a receiving groove 310. The receiving slot 310 may take the form of a recess to receive the water passing end 210 of the filter cartridge 200. Illustratively, the receiving slot 310 may be substantially cylindrical. In other embodiments not shown, the receiving slot 310 may have other shapes as long as it is compatible with the water passing end 210 of the filter cartridge 200. The filter base 300 is provided with a filter base water filtering port 320. After the filter cartridge 200 is mounted to the filter base 300, the water passing end 210 of the filter cartridge 200 is inserted into the receiving groove 310 of the filter base 300, and the filter cartridge water passing opening 212 is connected to the filter base water passing opening 320, so that water flows between the filter cartridge 200 and the filter base 300.

The side of the water passing end 210 of the filter element 200 is provided with a hook 220 and a locking groove 230. As will be described later, the hook 220 and the locking groove 230 are used in cooperation with the rotation pin 440 and the locker 410, respectively.

The filter base 300 includes a locking device 400. The locking device 400 is matched with the hook 220 and the locking groove 230 on the filter cartridge 200, so that the filter cartridge 200 can be locked and unlocked with the filter base 300. Locking device 400 may include a locking member 410, an actuator mechanism, and a swivel pin 440.

The transmission mechanism may include a linkage rod 420 and a slider 430. The middle portion of the linkage bar 420 is pivotably connected to the outside of the sidewall 312 of the receiving groove 310. The middle portion of the linkage bar 420 is pivotably connected to the outside of the sidewall 312 of the receiving groove 310. Illustratively, the middle portion of the linkage 420 may be mounted to the side wall 312 by a support bracket 450, as shown in FIGS. 8A-8B. The support bracket 450 may be a support arm that extends outside the side wall 312, and a shaft hole is provided at an end of the support arm. The middle portion of the linkage rod 420 may be connected to the shaft hole and pivotable about the shaft hole.

Retaining member 410 and pivot pin 440 extend medially through side walls 312 of receiving slot 310. Side wall 312 may be provided with through holes that accommodate retaining member 410 and pivot pin 440. Retaining member 410 and pivot pin 440 extend through the through-hole. The locker 410 and the swivel pin 440 may be hinged to both ends of the linkage rod 420, respectively, in two ways, and the locker 410 and the swivel pin 440 are directly hinged to both ends of the linkage rod 420 or indirectly hinged to both ends of the linkage rod 420 through an intermediate member. In the embodiment shown in fig. 8A-8B, the upper end of linkage rod 420 is directly hinged to retaining member 410, and the lower end of linkage rod 420 is indirectly hinged to swivel pin 440 via slide 430. It will be appreciated by those skilled in the art that when the lower end of the linkage rod 420 is directly hinged to the lower end of the linkage rod 420, it is necessary to modify the lower end of the linkage rod 420 based on the structure shown in fig. 8A-8B.

Alternatively, referring back to FIGS. 3-7, the upper end of linkage rod 420 may not be hinged to retaining member 410, but rather may be brought into a linkage relationship with retaining member 410 by abutting against one another. In this case, retaining member 410 may be guided through the through-holes in side wall 312.

In the illustrated embodiment, slide 430 is positioned below retaining member 410. The locker 410 is connected to the upper end of the linkage bar 420, and the slider 430 is connected to the lower end of the linkage bar 420. In other embodiments not shown, slide 430 can be positioned above retaining member 410. At this time, the locker 410 and the slider 430 may be coupled to the lower and upper ends of the linkage rod 420.

When the transmission mechanism comprises the linkage rod 420 and the sliding piece 430, the linkage rod 420 and the sliding piece 430 can be hinged or abutted. In this case, the swivel pin 440 is pivotably connected to the face of the slider 430 facing the side wall 312.

The swivel pin 440 may not only rotate about its pivot axis, but may also be able to move in a lateral direction. The pivot pin 440 is retracted into the sidewall 312 by moving in a lateral direction to bring the locking member 410 into the receiving groove 310 to engage with the locking groove 230 of the filter cartridge 200, thereby locking the filter cartridge 200 to the filter holder 300. The pivot pin 440 is folded into the sidewall 312 by pivoting upward, causing the retaining member 410 to exit the receiving slot 310, thereby unlocking the cartridge 200 from the filter base 300.

Therefore, the utility model provides a purifier of formula of cuting straightly, insert its filter core 200 to the lock position after, just can firmly lock automatically filter core 200 and filter seat 300 through locking device.

When it is desired to mount the filter cartridge 200 to the filter base 300, as shown in fig. 2-3, the water passing end 210 of the filter cartridge 200 is aligned with the receiving slot 310 of the filter base 300 and inserted directly into the receiving slot 310. When the filter cartridge 200 is moved downwardly from the position shown in fig. 3 to the locked position (as shown in fig. 4), the pivot pin 440 is pushed by the catch 220 to retract into the side wall 312 in the transverse direction. The rotation pin 440 pushes the sliding member 430 to move outward, thereby rotating the linkage rod 420 counterclockwise. The locker 410 is inserted into the locking groove 230 by the urging of the linkage rod 420.

Further, the receiving slot 310 can have a sufficient depth such that the filter cartridge 200 can continue to move downward from the locked position to the unlocked position, wherein the swivel pin 440 can extend into the receiving slot 310 and engage the filter cartridge 200 when the filter cartridge 200 is moved from the locked position to the unlocked position, and can pivot upward from the filter cartridge 200 to fold into the sidewall 312 when the filter cartridge 200 is moved upward from the unlocked position. The term "engaged" means that the rotating pin 440 can be engaged with the hook 220 when the filter cartridge 200 is in the unlocking position, so that the two are in a rotational linkage relationship, that is, the rotating pin 440 extends into the hook portion of the hook 220 and can be rotated by the rotating pin 440, rather than the hook 220 only pushing the rotating pin 440 to move laterally as in the process of moving the filter cartridge 200 from the locking position to the unlocking position.

As the filter cartridge 200 continues to move downward from the locked position to the unlocked position, as shown in fig. 4-6, the pivot pin 440 can re-enter the receiving slot 310 and engage the catch 220. When the cartridge 200 is in the unlocked position, the catch 220 passes over the pivot pin 440 and moves below the pivot pin 440. The pivot pin 440 is no longer pushed by the catch 220 and thus again projects into the receiving groove 310. At this point, the hook 220 is just engaged with the pivot pin 440. When the filter cartridge 200 is moved upward from the unlocked position, the pivot pin 440 can be pivoted upward by the catch 220 to fold into the sidewall 312. At this time, the sliding member 430 moves inward, and the locking member 410 is withdrawn from the locking groove 230 by the linkage rod 420, thereby completing the unlocking of the filter cartridge 200 from the filter base 300, as shown in fig. 7. Thus, the filter cartridge 200 can be pulled out of the filter base 300.

In this case, the locking position of the filter cartridge 200 can be sensed in two ways, and when the filter cartridge 200 is continuously inserted into the locking position of the filter holder 300, the reaction force of the rotation pin 440 against the catch 220 is sensed, so that the locking position can be sensed. Alternatively, the locked position may be marked by whether the proximal end face of the cartridge 200 is flush with the surface of the housing of the water purifier 100.

When the filter cartridge 200 needs to be taken out, the filter cartridge 200 can be separated from the filter base 300 by continuously pushing the filter cartridge 200 downwards to move the filter cartridge 200 to the unlocking position and then reversely pulling the filter cartridge 200. The locked filter cartridge 200 is not easily separated from the filter base 300, thereby ensuring the quality of the product. In addition, the locking and unlocking of the filter element 200 and the filter base 300 are very convenient, the operation is simple, and the user experience is good. Unlocking by pressing the cartridge 200 downward in a reverse direction to extract the cartridge 200 can avoid malfunction.

Preferably, when the swivel pin 440 is collapsed into the sidewall 312, as shown in fig. 7, its center of gravity is located radially inward of the pivot axis of the swivel pin 440, such that the swivel pin 440 automatically pivots back to the initial state, i.e., back to the state shown in fig. 3, when the filter cartridge 200 is disengaged from the filter base 300. With the swivel pin 440 in this initial state, its transverse dimension is greater than its longitudinal dimension. Thus, when the pivot pin 440 is pivoted to the folded and retracted state, the sliding member 430 is allowed to move inwardly, thereby driving the locking member 410 to exit the locking slot 230. Ready for the next insertion of cartridge 200. So set up, can ensure that the installation of filter core 200 every time can both be simple and easy, and then improve user experience.

Illustratively, the swivel pin 440 may be rod-shaped or other similar shape. The pivot pin 440 is in an initial state, and is substantially horizontal. In this manner, the length of the rotation pin 440 may be maximally utilized, such that the rotation pin 440 has a small size. Illustratively, the pivot pin 440 pivots upward through an angle of less than 90 degrees to a folded, stowed condition. Thus, the swivel pin 440 can automatically pivot back to the initial state when the filter cartridge 200 is disengaged from the filter base 300.

Preferably, an end of the rotation pin 440 facing the inside of the locking groove 230 has a rotation pin slope 442, as shown in fig. 4, and the rotation pin slope 442 extends downward from a top surface of the rotation pin 440 to an inner side surface of the rotation pin 440. Thus, during the downward movement of the filter cartridge 200, it is possible to convert the downward displacement of the filter cartridge 200 into the horizontal displacement of the rotation pin 440 and to smoothly move the rotation pin 440.

Preferably, the bottom surface 444 of the pivot pin 440 extends in the transverse direction, as shown in fig. 6, and the bottom surface 444 is adapted to engage the catch 220 on the filter cartridge 200 to pivot upwardly from the catch 220 to fold into the sidewall 312. Therefore, the hook 220 can have a simple structure to facilitate processing and assembly on the premise of realizing the function of the hook 220.

Corresponding to the structure of the rotation pin 440, the hook 220 may be provided with a hook slope 222 matching with the rotation pin slope 442, as shown in fig. 4. The catch ramp 222 acts to push against the rotation pin ramp 442 to retract the rotation pin 440 in the transverse direction into the side wall 312. Thus, during the downward movement of the filter cartridge 200, it is possible to convert the downward displacement of the filter cartridge 200 into the horizontal displacement of the rotation pin 440 and to smoothly move the rotation pin 440.

Illustratively, the slider 430 has a groove 432, and as shown in fig. 7, a swivel pin 440 is pivotably connected to the slider 430 within the groove 432. The groove 432 serves to limit the pivoting range of the swivel pin 440. For example, the groove 432 serves to limit the pivot of the swivel pin 440 within the above-mentioned horizontal position and an angular range of pivoting upward less than 90 degrees. So configured, the locking device 400 may have a simple structure.

Illustratively, the slider 430 is positioned below the locking member 410 and the catch 220 is positioned below the locking slot 230. Since the rotation pin 440 is connected to the slider 430, a space above the slider 430 needs to be reserved for the rotation pin 440 to be able to pivot upward. By disposing the sliding member 430 under the locking member 410, the rotation pin 440 can be disposed just by using the space between the sliding member 430 and the locking member 410, thereby preventing an excessive influence on the overall structure of the filter holder 300.

Illustratively, the retaining groove 230 on the cartridge 200 is of sufficient dimension in the longitudinal direction to allow the cartridge 200 to continue to move downward to the unlocked position when the retaining member 410 is inserted into the retaining groove 230, as shown in fig. 4-6. That is, the longitudinal dimension of the locking groove 230 may be greater than or equal to the sum of the longitudinal dimension of the locking member 410 and the distance between the locked position and the unlocked position. This allows downward movement from the locked position to the unlocked position during unlocking of the cartridge 200.

Illustratively, the lower edge of the retaining groove 230 abuts the lower edge of the retaining member 410 when the cartridge 200 is in the locked position, as shown in fig. 4. Thus, the cartridge 200 cannot be removed from the filter base 300 due to the blocking of the lower edge of the locking member 410. After inserting the cartridge 200 into the locked position, the cartridge 200 can be pulled in a reverse direction, thereby ensuring that the cartridge 200 is properly in the locked position.

Illustratively, the locking device 400 further includes a restoring member 460, as shown in fig. 8A-8B, positioned between the retaining member 410 and the sidewall 312 for applying a resilient force to the retaining member 410 to cause the retaining member 410 to exit the retaining groove 230 when the filter cartridge 200 is disengaged from the filter base 300.

Referring to fig. 7 in combination with fig. 8A-8B, after the pivot pin 440 is pivoted upward to fold away, it is desirable that the slider 430 be able to move toward the inside of the side wall 312. This action may be done manually by the user. For example, a user can press the lower portion of the linkage bar 420 inward at the outside of the locking device to withdraw the locker 410 out of the locking slot 230. Preferably, this process may be done automatically. In a preferred embodiment, the lockout device 400 further includes a reset member 460, as shown in FIGS. 8A-8B. The restoring member 460 is positioned between the linkage bar 420 and the sidewall 312 of the receiving groove to apply an elastic force to the linkage bar 420 to withdraw the locker 410 from the locking groove 230. Thus, when the pivot pin 440 is folded and retracted, the restoring member 460 pushes the locker 410 out of the locking groove 230. Illustratively, the restoring member 460 may be a spring. Reset element 460 may be mounted by a guide pin on side wall 312 and a blind hole in retaining member 410. This scheme need not to increase extra structure just can install piece 460 that resets, consequently has simple structure, processing cost low grade advantage.

Illustratively, retaining member 410 includes a keyway rod 412 and an ejector 414. Retaining member 410 extends medially through sidewall 312. Ejector 414 is vertically connected to retaining member 410 so that retaining member 410 has a T-shape, as shown in fig. 8B. Reset member 460 is positioned between ejector member 414 and side wall 312.

Illustratively, the filter base 300 is provided with a filter base water gap and a filter base check valve, and the filter base check valve 330 includes a filter base valve core 332 and a filter base elastic member 334, as shown in fig. 6. The filter seat valve core 332 penetrates the filter seat water filtering port. The filter seat spring 334 is located between the filter seat valve core 332 and the filter seat 300. When the filter cartridge 200 moves downward to the locked position, the filter seat insert 332 can move downward to allow the filter seat check valve 330 to open. The filter cartridge valve core 332 can continue to move downward as the filter cartridge 200 moves from the locked position to the unlocked position. In this way, the cartridge 200 can be unlocked by pressing down.

Illustratively, the filter cartridge 200 is provided with a filter cartridge drain and a filter cartridge check valve 240 at the drain end. Cartridge check valve 240 includes a cartridge valve spool 242 and a cartridge resilient member 244, as shown in fig. 6. The cartridge valve spool 242 passes through the cartridge drain. A cartridge resilient member 244 is positioned between the cartridge valve 242 and the cartridge 200. When the filter element 200 moves downward to the locked position, the filter element spool 242 can move downward to open the filter element check valve 240. The position of the cartridge valve 242 within the cartridge 200 remains unchanged as the cartridge 200 moves from the locked position to the unlocked position. Illustratively, the filter cartridge 200 may be provided with a limiting portion 250, when the filter cartridge 200 is in the locked position, the filter cartridge 242 is not further restricted by the limiting portion, and the filter cartridge elastic member 244 is compressed to a greater extent. In this way, the filter cartridge valve element 332 is better urged downward as the filter cartridge 200 moves from the locked position to the unlocked position.

Illustratively, the filter base 300 includes a plurality of locking devices 400, as shown in fig. 2, for example, a pair of locking devices 400. The plurality of locking devices 400 are uniformly arranged along the circumferential direction of the filter holder 300. Illustratively, when a pair of locking devices 400 are included, they may be oppositely disposed at both sides of the locking groove 230. In this case, the hooks 220 and the locking grooves 230 are provided in pairs on the filter cartridge 200, corresponding to the positions of the locking means 400. This enables the plurality of locking devices 400 to apply locking forces to the filter element 200 in a plurality of directions, thereby firmly fixing the filter element 200 to the filter base 300.

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 (16)

1. A water purifier (100) comprises a filter base (300) and a filter element (200), wherein a clamping hook (220) and a locking groove (230) are arranged on the side surface of a water passing end of the filter element, the filter base is provided with a receiving groove (310) for receiving the water passing end, the filter base comprises a locking device (400) which comprises a locking member (410), a transmission mechanism and a rotating pin (440), wherein

The retaining member and the swivel pin extend medially through a sidewall (312) of the receiving slot; and is

The middle part of the transmission mechanism is hinged to the outer side of the side wall, one end of the transmission mechanism abuts against and/or is hinged to the locking piece, and the other end of the transmission mechanism is hinged to the rotary pin;

wherein the rotary pin (440) is pushed by the hook (220) to retract into the side wall along the transverse direction when the filter element moves downwards to the locking position so as to drive the locking piece (410) to be inserted into the locking groove (230),

wherein the pivot pin (440) causes the retaining member to exit the receiving slot by pivoting upward to fold into the sidewall.

2. The water purifier as recited in claim 1, wherein said receiving slot has a sufficient depth such that said filter cartridge can continue to move downward from said locked position to an unlocked position, wherein said pivot pin (440) can extend into said receiving slot (310) and engage said catch (220) when said filter cartridge moves from said locked position to said unlocked position, and can be pivoted upward by said catch to fold into said sidewall (312) when said filter cartridge moves upward from said unlocked position.

3. The water purifier according to claim 1, wherein a center of gravity of said swivel pin (440) when folded into said side wall (312) is located radially inside a pivot axis of said swivel pin, such that said swivel pin automatically pivots back to an initial state when said filter cartridge is disengaged from said filter base.

4. The water purifier as recited in claim 1, characterized in that the end of said rotation pin (440) facing the inside of said receiving groove has a rotation pin slope (442) extending from the top surface of said rotation pin down to the inside surface of said rotation pin.

5. The water purifier as recited in claim 4, wherein a bottom surface (444) of said pivot pin (440) extends in a transverse direction, said bottom surface for engaging a catch (220) on said cartridge to pivot upwardly from said catch into said side wall.

6. The water purifier as recited in claim 4, characterized in that said hook (220) is provided with a hook slope (222) matching said pivot pin slope, said hook slope is used to push against said pivot pin slope (442) to make said pivot pin (440) retract into said side wall along the transverse direction.

7. The water purification machine according to claim 1, wherein said locking slot (230) of said filter cartridge has a sufficient dimension in the longitudinal direction to allow said filter cartridge to continue to move downwards to an unlocked position when said locking member (410) is inserted into said locking slot.

8. A water purification machine according to claim 7, wherein the lower edge of said locking groove (230) abuts against the lower edge of said locking element (410) when said cartridge is in said locked position.

9. The water purification machine according to claim 1, wherein said rotation pin (440) is located below said locking member (410) and said hook (220) is located below said locking slot (230).

10. The water purification machine according to claim 1, wherein said transmission mechanism comprises a linkage bar (420) and a slider (430), the middle of said linkage bar being hinged to the outside of said side wall, one end of said linkage bar abutting and/or being hinged to said locking member and the other end abutting and/or being hinged to said slider, said swivel pin being hinged to said slider.

11. The water purification machine according to claim 10, wherein said slider (430) has a groove (432) inside which said rotation pin (440) is hinged to said slider, said groove being adapted to limit the pivoting range of said rotation pin.

12. The water purification machine according to claim 1, wherein said locking device further comprises a return element (460) interposed between said locking element (410) and said lateral wall (312) for exerting an elastic force on said locking element to cause it to exit from said receiving recess (310) when said cartridge is disengaged from said seat.

13. The water purification machine according to claim 12, wherein said locking element (410) comprises:

a keyway rod (412) extending inboard through the sidewall (312); and

ejector member (414), ejector member with the perpendicular connection of keyway pole makes the retaining member is the T shape, reset piece (460) are located ejector member with between the lateral wall.

14. The water purifier of claim 1, wherein the filter base is provided with a filter base water gap and a filter base check valve (330), the filter base check valve comprising:

a filter seat valve core (332) passing through the filter seat water filtering port; and

a filter seat spring (334) located between the filter seat spool and the filter seat (300),

the filter base valve core can move downwards to enable the filter base check valve to be conducted when the filter element moves downwards to the locking position, and can continue to move downwards when the filter element moves from the locking position to the unlocking position.

15. The water purification machine according to claim 14, wherein said water passing end of said filter element is provided with a filter element water passing mouth and a filter element non-return valve (240), said filter element non-return valve comprising:

a cartridge valve spool (242) passing through the cartridge drain; and

a cartridge resilient member (244) positioned between the cartridge core and the cartridge,

wherein the cartridge core is movable downward to render the cartridge check valve conductive when the cartridge core is moved downward to the locked position, and remains in place in the cartridge core when the cartridge core is moved from the locked position to the unlocked position.

16. The water purification machine according to claim 1, wherein the filtering base (300) comprises a plurality of locking means (400) arranged uniformly along the circumferential direction of the filtering base, the hooks (220) and the locking slots (230) corresponding to said plurality of locking means on the filtering cartridge.

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