CN217139553U - Desk type water purifier - Google Patents

Abstract

The embodiment of the utility model provides a desk-top purifier. This desk-top purifier includes: the filter element assembly comprises a filter shell and a filter element arranged in the filter shell, and the filter shell is provided with a filter shell water inlet and a filter shell water outlet; the water inlet joint component is screwed or screwed to the water inlet of the filter shell; and the self-locking assembly is movably arranged on the filter shell between a locking position and an unlocking position, is partially inserted into the water inlet joint assembly when being in the locking position, and is separated from the water inlet joint assembly when being in the unlocking position. The auto-lock subassembly is in the switching of two positions, and the filter element group spare of being convenient for on the one hand and the dismantlement between the water supply connector subassembly make the dismantlement process simpler high-efficient, and on the other hand when need not tearing open the filter element group spare, can prevent because the emergence of the condition of leaking or filter element group spare damage between the filter element group spare that the mistake collision leads to and the water supply connector subassembly.

Description

Desk type water purifier

Technical Field

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

Background

With the increasing demand of people for water quality, water purifiers have become essential living goods basically. Various manufacturers have proposed various water purifiers to accommodate different applications. Desktop water purifiers are popular as an installation-free water purifier.

Desktop water purifiers on the market typically comprise a water inlet assembly, a water outlet assembly and a filter cartridge assembly. Wherein, the filter element group spare generally can use the mode of joint to connect with water outlet assembly, the subassembly of intaking.

Typically, the desktop water purifier is placed on a kitchen counter and is easily touched by mistake or moved during cleaning. Therefore, the filter element assembly, the water inlet assembly or the water outlet assembly are easy to loosen, even fall or fall off, and water leakage or filter element damage is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art at least partially, the embodiment of the utility model provides a desktop water purifier. This desk-top purifier includes: the filter element assembly comprises a filter shell and a filter element arranged in the filter shell, and the filter shell is provided with a filter shell water inlet and a filter shell water outlet; the water inlet joint component is screwed or screwed to the water inlet of the filter shell; and the self-locking assembly is movably arranged on the filter shell between a locking position and an unlocking position, is partially inserted into the water inlet joint assembly when being in the locking position, and is separated from the water inlet joint assembly when being in the unlocking position.

When the auto-lock subassembly is in latched position, its partial structure inserts in the water supply connector subassembly, the relative position between auto-lock subassembly after inserting and the water supply connector subassembly is injectd, especially adopt rotatable mode to be connected and the condition of dismantling (for example the condition of rotating the card and connecting or threaded connection) at water supply connector subassembly and filter shell, the rotation of water supply connector subassembly has been restricted after inserting into the water supply connector subassembly to the partial structure of auto-lock subassembly, and then can prevent that the water supply connector subassembly is not hard up, the reliability of being connected between water supply connector subassembly and the filter element group spare has been guaranteed. When the self-locking assembly is located at the unlocking position, the self-locking assembly is separated from the water inlet joint assembly, and the water inlet joint assembly is located in a movable state, so that the water inlet joint assembly and the filter element assembly can be conveniently detached. The auto-lock subassembly is in the switching of two positions, and the filter element group spare of being convenient for on the one hand and the dismantlement between the water supply connector subassembly make the dismantlement process simpler high-efficient, and on the other hand when need not tearing open the filter element group spare, can prevent because the emergence of the condition of leaking or filter element group spare damage between the filter element group spare that the mistake collision leads to and the water supply connector subassembly.

Illustratively, the self-locking assembly is movable between a locked position and an unlocked position in a direction parallel to the axis of rotation of the water inlet joint assembly. Partial structure of the self-locking assembly is inserted into the water inlet joint assembly along the direction parallel to the rotation axis of the water inlet joint assembly, and the circumferential rotation of the water inlet joint assembly can be limited after the insertion, so that the connection stability between the water inlet joint assembly and the filter element assembly is ensured.

Illustratively, the filter shell includes filter shell body and into water connector seat, is provided with the mounting opening on the filter shell, and into water connector seat is fixed in the mounting opening, and the filter shell water inlet sets up on into water connector seat. The joint strength of the filter shell and the water inlet joint assembly can be enhanced, and the stability and the sealing property of the connection of the filter core assembly and the water inlet joint assembly can be ensured.

Illustratively, the self-locking assembly is mounted between the water inlet adapter and the sidewall of the mounting opening in a radial direction perpendicular to the axis of rotation of the water inlet adapter assembly. Therefore, the displacement of the self-locking assembly can be limited in multiple directions by the side walls of the water inlet joint seat and the mounting opening, so that the self-locking assembly can only move in the radial direction perpendicular to the rotation axis of the water inlet joint assembly, and the locking effect of the self-locking assembly is ensured. Moreover, the self-locking assembly can be far away from water flow, so that the requirements on the material and the sealing performance of the self-locking assembly are not high, and the cost is reduced.

Illustratively, a self-locking mounting groove which is radially and outwards sunken is arranged on the side wall of the mounting opening, and the self-locking assembly is movably mounted in the self-locking mounting groove. The self-locking mounting groove can better limit the moving track of the self-locking assembly, so that the self-locking assembly can only slide along the parallel direction of the rotating axis of the water inlet joint assembly, and can be positioned into the water inlet joint assembly more quickly. On the other hand, the position of the self-locking assembly in the self-locking mounting groove is more stable, and the self-locking assembly can be guaranteed to have a better stabilizing effect on the water inlet connector assembly when being locked.

Illustratively, a guide part is arranged on the outer side surface of the water inlet joint seat, a guide adapting part matched with the guide part is arranged on the self-locking assembly, and the extending direction of at least one of the guide part and the guide adapting part is parallel to the moving direction of the self-locking assembly. Through the arrangement of the guide part and the guide adapting part, the moving route of the self-locking assembly can be better limited. And, the position of the joint seat of intaking can also be restricted in the setting of guide part and direction adaptation portion, prevents the rotation of the joint seat of intaking, and then guarantees the steadiness that water supply connector assembly and filter element group spare are connected.

Illustratively, the inlet fitting includes a plurality of resilient fingers spaced about the axis of rotation that snap-fit onto an annular snap-fit flange in the filter housing body. The in-process of shell body is strained in the insertion to the adapter socket of intaking, and the elasticity jack catch is extruded deformation, passes and strains the shell water inlet after, and the elasticity jack catch that resumes the shape offsets with the joint flange, prevents that the adapter socket of intaking from breaking away from the installing opening, guarantees the steadiness of being connected between the adapter socket of intaking and the shell body of straining. No matter what angle the water inlet joint seat is inserted into the installation opening, the water inlet joint seat can be clamped to the clamping flange.

Illustratively, the water inlet joint seat is embedded in the mounting opening, and the self-locking assembly comprises a moving member and an operating member, wherein the moving member is arranged between the water inlet joint seat and the side wall of the mounting opening, and the operating member is connected to the moving member and protrudes out of the outer side surface of the mounting opening along the radial direction. The operating part protrusion is in installation open-ended setting, when needs remove the auto-lock subassembly, can drive the moving member through to the operating part application of force, and then removes the auto-lock subassembly, moves it to unblock position or latched position as required, and it is more convenient to operate.

Illustratively, a notch which is sunken into the filter shell is arranged on the end surface of the mounting opening, and the operating piece is accommodated in the notch along the direction parallel to the rotation axis when the self-locking assembly is in the unlocking position. Like this, when the auto-lock subassembly was in the unblock position, the auto-lock subassembly can wholly imbed in the installation opening, and the structure is compacter reasonable.

Illustratively, the desktop water purifier further comprises a water outlet assembly removably connected to the outlet of the filter housing. The disassembly process is simple and convenient, and the user experience is good.

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

fig. 2 is an exploded view of a desktop water purifier according to an exemplary embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a cross-sectional view of a desktop water purifier according to an exemplary embodiment of the present disclosure;

FIG. 5 is an enlarged view of a portion B of FIG. 4, with arrows schematically illustrating the direction parallel to the axis of rotation of the water intake joint assembly;

fig. 6 is a perspective view of a self-locking assembly according to an exemplary embodiment of the present invention;

FIG. 7 is an exploded view of another perspective of the desktop water purifier shown in FIG. 2;

FIG. 8 is an enlarged view of a portion C of FIG. 7;

fig. 9 is an exploded view of a desktop water purifier according to another exemplary embodiment of the present disclosure;

fig. 10 is a cross-sectional view of a desktop water purifier according to another exemplary embodiment of the present disclosure; and

fig. 11 is a partially enlarged view of a portion D in fig. 9.

Wherein the figures include the following reference numerals:

10. a filter element assembly; 11. a filter shell; 111. a filter housing body; 112. a water inlet of the filter shell; 113. a water outlet of the filter shell; 114. a water inlet joint seat; 1141. a first water inlet end; 1142. a first water outlet end; 1143. an elastic claw; 1144. a guide portion; 115. an installation opening; 1151. an end face; 1152. opening; 116. clamping the flanges; 117. a self-locking mounting groove; 12. a filter element; 20. a water inlet joint assembly; 21. a water inlet joint body; 211. a second water inlet end; 2111. a root portion; 2112. a head; 2113. an annular flange; 212. a second water outlet end; 22. a sleeve is arranged on the water pipe; 221. a first end; 222. a second end; 30. a water outlet assembly; 40. a self-locking assembly; 41. a guide fitting portion; 42. a moving member; 43. an operating member; 50. a seal member; 114', a water inlet joint seat; 1141', a rotary card adapting part; 115', mounting openings; 20', a water inlet joint assembly; 21', screwing and clamping jaws; 50' and a seal.

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 embodiment of the utility model provides a desk-top purifier. The following describes in detail a desktop water purifier provided by an embodiment of the present invention with reference to specific embodiments.

Referring to fig. 1 and 4, the desktop water purifier includes a disposable filter cartridge assembly 10, a water inlet joint assembly 20, and a water outlet assembly 30. The filter element assembly 10 comprises a filter shell 11 and a filter element 12 arranged in the filter shell 11, wherein a filter shell water inlet 112 and a filter shell water outlet 113 are arranged on the filter shell 11. Raw water flows into the filter shell 11 from the filter shell water inlet 112, is filtered by the filter element 12 and then is discharged from the filter shell water outlet 113. The inlet fitting assembly 20 is removably connected to the filter housing inlet 112. The water outlet assembly 30 is removably connected to the filter housing water inlet 112. After the desktop water purifier is used for a period of time, more impurities are attached to the filter element 12, the water outlet quality is affected, and the filter element 12 needs to be replaced at the moment. The desktop water purifier in the present solution only needs to detach the water inlet joint assembly 20 and the water outlet assembly 30 from the filter element assembly 10, and integrally replace the new filter element assembly 10, instead of separately replacing the filter element 12 therein. Filter shell and decorate the scheme that the shell just can change the filter core under dismantling with current needs on the market and compare, the process procedure of changing filter core subassembly 10 is less in this scheme, only need to demolish water supply connector assembly 20 and play water subassembly 30 at the user side to be connected to new filter core subassembly 10 can, thereby reduced work load, user experience is good. In the replacement process, the sealing performance between the filter element 12 and the filter shell 11 is better, the filter element is less influenced by the outside, and the secondary pollution in the replacement process is reduced. Illustratively, the filter cartridge and the filter housing in the present application may be formed as a single piece by spin-coating or the like, which further improves the stability of the connection between the filter cartridge 12 and the filter housing 11. Or the filter element and the filter shell can also adopt a clamping connection or a threaded connection mode. It should be noted that, the disposable filter element mentioned in the present embodiment means that the filter element assembly 10 is disposable for the consumer as a whole, that is, the filter element assembly 10 (including the filter element 12 and the filter housing 11) is replaced as a whole when the service life of the filter element reaches its service life, but for the manufacturer, the filter element assembly 10 can be recycled. It will be appreciated that the cartridge assembly 10 of the present embodiment includes a housing 11 and a cartridge 12, the housing 11 can be directly exposed to the environment, and the cartridge assembly 10 can serve as an appearance product. That is, the desktop water purifier is not additionally provided with a shell. Like this, when changing, directly with filter element group spare 10 whole change can, the operation is more simple and convenient to need not to provide and go on after sale and trade services such as core, save service cost. In the existing desktop water purifier with the filter element replaced independently, interfaces exist between the water inlet and the water outlet of the filter element and the water inlet and the water outlet of the filter shell respectively, and interfaces also exist between the water inlet and the water outlet of the filter shell and an external water inlet and water outlet pipe, namely, the water inlet and the water outlet of the filter shell at least comprise four interfaces which are water leakage points. The risk of water leakage may be increased when the filter cartridge is replaced on site. In the present application, since the filter element assembly 10 is disposable and qualified after being shipped from a factory, two interfaces are only present between the filter element assembly 10 and the water inlet connector assembly 20 and the water outlet assembly 30, thereby greatly reducing the risk of water leakage. And because the number of the interfaces is reduced, the structures of the filter element assembly 10, the water inlet joint assembly 20 and the water outlet assembly 30 are simpler, and the processing cost is lower.

Illustratively, the water inlet joint assembly 20 may include a quick-connect coupling. The setting of quick connector can guarantee that can plug and play between filter element group spare 11 and the water supply connector subassembly 20, and the dismouting process is simple and convenient, more is applicable to disposable filter element group spare 10's in this scheme dismouting. In an embodiment not shown, the connection between the water inlet connector assembly and the filter element assembly 10 includes, but is not limited to, a plug-in connection or a threaded connection, etc.

Illustratively, the quick connector can be rotatably snap-fit to the filter housing inlet 112. When the filter element assembly 10 and the water inlet connector assembly 20 are installed, the quick-connection connector is aligned to the water inlet 112 of the filter shell, and the quick-connection connector is inserted and screwed to complete the installation of the filter element assembly 10 and the water inlet connector assembly 20, so that the process is simple and convenient. The mode steadiness and the leakproofness of rotating the card connection are better. In one set of embodiments, referring to fig. 9-11, the filter housing 11 may be provided with a screw-on adapter 1141 'around the filter housing inlet 112, the water inlet connector assembly 20' may be provided with a screw-on detent 21 ', the water inlet connector assembly 20' may be aligned with the filter housing inlet 112, and the water inlet connector assembly 20 'may be screwed on to engage the screw-on detent 21' with the screw-on adapter 1141 ', thereby completing the assembly of the water inlet connector assembly 20' and the filter housing 11. Illustratively, a sealing member 50 'may be further disposed between the water inlet connector assembly 20' and the screw-on adapter 1141 'to ensure the sealing property of the connection between the filter housing 11 and the water inlet connector holder 20'. The screw-fit portion 1141' may be formed integrally with the filter housing 11, or may be assembled after being formed separately. While in the illustrated embodiment, the water inlet connector assembly 20 'is enclosed on the exterior of the screw-on adapter 1141', in other embodiments not shown, the water inlet connector assembly 20 'is screw-on to the interior of the screw-on adapter 1141'.

In another set of embodiments, as shown in fig. 2, the filter housing 11 may include a filter housing body 111 and a water inlet adapter 114, the filter housing 11 is provided with a mounting opening 115, the water inlet adapter 114 is fixed to the mounting opening 115, the filter housing water inlet 112 is provided on the water inlet adapter 114, and the water inlet adapter assembly 20 is rotatably connected to the water inlet adapter 114. Illustratively, the mounting opening 115 is recessed into the filter housing body 111 to form a recess, and the water inlet socket 114 may be disposed in the recess. Alternatively, the surface of the filter housing 11 may be directly provided with the mounting opening 115, and the water inlet connector 114 may be connected to the mounting opening 115 at the outer side of the housing body 11. The filter shell 11 is provided with the filter shell body 111 and the water inlet joint seat 114 which are separated, and the water inlet joint assembly 20 is screwed and clamped to the water inlet joint seat 114, so that the filter shell 11 can be conveniently machined, the machining cost is reduced, and the machining precision is ensured. Further, under the condition of guaranteeing the machining precision, the joint strength of the filter shell 11 and the water inlet joint assembly 20 can be strengthened, and the stability and the sealing performance of the connection of the filter element assembly 10 and the water inlet joint assembly 20 can be guaranteed.

Illustratively, as shown in FIG. 3, the water inlet adapter 114 may include a first water inlet end 1141 and a first water outlet end 1142, the water inlet adapter assembly 20 being removably coupled to the first water inlet end 1141, the first water outlet end 1142 including a plurality of resilient fingers 1143 spaced around the outlet of the filter housing water inlet 112, the plurality of resilient fingers 1143 snapping onto the snap flange 116 within the mounting opening 115. Alternatively, the snap flange 116 may be an integral annular snap flange. Thus, the inlet fitting 114 can be snapped into the snap flange 116 no matter what angle it is inserted into the mounting opening 115. Alternatively, the snap flange 116 may include a plurality of protrusions that snap into a one-to-one correspondence with the plurality of resilient fingers 1143. Illustratively, the plurality of resilient fingers 1143 enclose a cylindrical structure having an outer diameter slightly larger than an inner diameter of the outlet of the filter housing water inlet 112. In the process of inserting the water inlet joint seat 114 into the filter shell body 111, the elastic claw 1143 is extruded and deformed, and after passing through the filter shell water inlet 112, the elastic claw 1143 which recovers the shape abuts against the clamping flange 116, so that the water inlet joint seat 114 is prevented from being separated from the mounting opening 115, and the connection stability between the water inlet joint seat 114 and the filter shell body 111 is ensured.

Illustratively, the desktop water purifier may further include a seal that seals between a sidewall of the mounting opening 115 and the water inlet adapter 114. The sealing member is provided to prevent water leakage from a gap between the water inlet joint seat 114 and the mounting opening 115, and to ensure sealing between the water inlet joint seat 114 and the filter case body 111.

Illustratively, the seal may be located on a side of the plurality of resilient fingers 1143 away from the interior of the filter housing body 111. During installation, the resilient latch 1143 first contacts and latches the cartridge body 111 to the latch flange 116, and then the seal is compressed between the side wall of the mounting opening 115 and the water inlet adapter 114. In this way, the resistance caused by the seal in the installation of the inlet fitting 114 can be reduced.

Alternatively, in another embodiment, the outer sidewall of the first outlet end 1142 of the inlet connector base 114 is provided with a mounting groove surrounding the filter housing inlet 112, and the sealing member is fixed to the mounting groove. For example, the sealing element may also be a sealing ring, and when being installed, the sealing ring is directly sleeved on the first water outlet end portion 1142 of the water inlet joint seat 114. The seal is secured to the first outlet end 1142 of the inlet adapter 114 to facilitate the securing of the seal. Moreover, the sealing element is arranged in the mounting groove, so that the position of the sealing element can be better fixed, and the sealing effect is ensured.

Illustratively, as shown in fig. 5, the cross-sectional area of the first water inlet end portion 1141 is larger than the cross-sectional area of the first water outlet end portion 1142, and the sealing member 50 is sleeved on the first water outlet end portion 1142. The first water inlet end portion 1141 has a large area, so that it can ensure sufficient water to flow into the filter housing 11. In addition, the arrangement that the cross-sectional area of the first water inlet end portion 1141 is larger than that of the first water outlet end portion 1142 can also ensure that the flow velocity of water is increased after the water passes through the water inlet connection head seat 114, so that the water can efficiently flow through the filter element 12, and the water purification efficiency of the desktop water purifier is ensured. The sealing element 50 is sleeved on the first water outlet end portion 1142 with smaller size, so that the size of the sealing element 50 can be reduced, the cost can be reduced, and the risk of water leakage can be reduced.

Illustratively, the water inlet adapter 114 is embedded within the mounting opening 115. In one embodiment, the water inlet adapter 114 may be partially inserted into the mounting opening 115. Alternatively, the water inlet fitting 114 may be completely embedded in the mounting opening 115. The embedded water inlet joint seat 114 can ensure the stability of connection with the filter shell body 111, and the outside can be tidier when seen from the outside of the filter shell 11, so that the overall size of the product is reduced.

Illustratively, as shown in FIG. 3, the inlet fitting assembly 20 may include an inlet fitting body 21 and a water conduit mounting sleeve 22. The water inlet joint body 21 may include a second water inlet end 211 and a second water outlet end 212. Wherein the second outlet end 212 is removably connected to the filter housing inlet 112 to facilitate removal of the inlet fitting assembly 20 from the housing. The second inlet end 211 includes a root portion 2111 and a head portion 2112. Wherein the root portion 2111 is connected to the second outlet end portion 212 and the head portion 2112 is disposed away from the second outlet end portion 212. The water pipe mounting sleeve 22 includes a first end 221 and a second end 222 disposed opposite to each other, the first end 221 is detachably connected to the root portion 2111, the second end 222 is sleeved on the head portion 2112, and an annular gap is disposed between the second end 222 and the head portion 2112, and the annular gap is used for clamping the water inlet pipe. After the water inlet pipe is communicated, the water in the water inlet pipe flows into the filter element assembly 10 through the second water inlet end 211 and the second water outlet end 212 in sequence. Like this, the leakproofness of being connected between water pipe and the water supply connector body 21 is guaranteed to water pipe installation sleeve 22, and the leakproofness between water supply connector assembly 20 and filter element group spare 10 is guaranteed to water supply connector body 21, and then has guaranteed the sealing connection of water pipe and desk-top purifier. And, can install the inlet pipe of 22 dismouting through the water pipe on the water supply connector subassembly, through inlet connector body 21 cartridge filter element group spare 10, structural design is simple reasonable, and the practicality is better.

Illustratively, as shown in fig. 2-3, the first end 221 may be threaded to the root 2111. Specifically, the outer surface of the root 2111 is threaded and the inner wall of the first end is correspondingly threaded. Illustratively, the process of installing the inlet pipe and inlet fitting assembly 20 is as follows: the water pipe mounting sleeve 22 is screwed to take the water inlet pipe mounting sleeve 22 off the water inlet joint body 21, the water pipe mounting sleeve 22 is sleeved on the water pipe, then the end part of the water inlet pipe is inserted to the second end 222, the water pipe mounting sleeve 22 is screwed to reduce the gap between the second end 222 and the head part 2112, and the water inlet pipe is firmly clamped. Accordingly, the water inlet pipe is completely disassembled by screwing the water pipe mounting sleeve 22 to increase the gap between the second end 222 and the head portion 2112 and pulling the water inlet pipe out of the gap. The leakproofness that water pipe and water supply connector assembly 20 are connected can be guaranteed to threaded connection's mode on the one hand, and on the other hand, only can realize through revolving soon with the dismouting of water pipe, the process is simple and convenient.

Illustratively, as shown in fig. 3, the outer peripheral wall of the head portion 2112 is provided with an annular flange 2113, the annular flange 2113 having a water-facing surface facing away from the root portion 2111, the water-facing surface being inclined toward the central axis of the second water inflow end portion 211 in a direction away from the root portion 2111, the annular flange 2113 forming an annular gap with the second end 222. In the process of connecting the water inlet pipe with the water inlet joint assembly 20, the water inlet pipe needs to be inserted into the second water inlet end portion 211, and the surface of the upstream surface has a certain inclination angle, so that the water inlet pipe can be more conveniently inserted into the second water inlet end portion 211. After the water inlet joint component 20 is connected with the water inlet pipe, the outer peripheral wall of the annular flange 2113 abuts against the inner wall of the water inlet pipe, and the tightness between the water inlet joint component 20 and the water inlet pipe can be further ensured.

Illustratively, the water exit assembly 30 includes a gooseneck or a spray head. Thus, water in the filter element assembly 10 flows out through the gooseneck or the spray head, so that normal use of the desk-top water purifier is guaranteed. In embodiments not shown, the water outlet assembly may also include various types of faucets or conduits known in the art or that may occur in the future.

In another embodiment, the desktop water purifier further comprises a self-locking assembly 40 movably disposed on the filter housing 11 between a locked position and an unlocked position, the self-locking assembly 40 being partially inserted into the water inlet connector assembly 20 when in the locked position and the self-locking assembly 40 being separated from the water inlet connector assembly 20 when in the unlocked position. When the self-locking assembly 40 is in the locking position, part of the structure of the self-locking assembly 40 is inserted into the water inlet joint assembly 20, the relative position between the inserted self-locking assembly 40 and the water inlet joint assembly 20 is limited, and particularly in the case that the water inlet joint assembly 20 and the filter shell 11 are rotatably connected and detached (for example, in the case of screwing or screwing), the rotation of the water inlet joint assembly 20 is limited after the part of the structure of the self-locking assembly 40 is inserted into the water inlet joint assembly 20, so that the water inlet joint assembly 20 can be prevented from loosening, and the reliability of connection between the water inlet joint assembly 20 and the filter element assembly 10 is ensured. When the self-locking assembly 40 is located at the unlocking position, the self-locking assembly is separated from the water inlet joint assembly 20, and the water inlet joint assembly 20 is located at a movable state, so that the water inlet joint assembly 20 and the filter element assembly 10 can be conveniently detached. Self-locking assembly 40 is in the switching of two positions, and the dismantlement between filter element group spare 10 and the water inlet joint subassembly 20 of being convenient for on the one hand makes the dismantlement process simpler high-efficient, and on the other hand when need not changing filter element group spare 10, can prevent because the emergence of the condition of leaking between filter element group spare 10 that the mistake collision leads to and water inlet joint subassembly 20 or filter element group spare 10 damage. Illustratively, the outer peripheral surface of the self-locking assembly 40 may be a frosted surface or any surface having a damping effect to ensure that the self-locking assembly 40 can ensure stable position without external force.

As another embodiment of the present invention, another desktop water purifier is provided. The desktop water purifier comprises the self-locking assembly 40. The desktop water purifier also comprises a filter element component 10 and a water inlet joint component. In this embodiment, the filter element assembly 10 may be the above-mentioned disposable filter element assembly, or may be provided separately from the filter element and the filter housing. Wherein the water inlet joint assembly 20 is connected with the water inlet 112 of the filter shell in a screwing or threaded mode.

Illustratively, the self-locking assembly 40 is movable between a locked position and an unlocked position along a direction parallel to the axis of rotation of the water inlet coupling assembly 20. The direction parallel to the axis of rotation can be referred to in the direction of the arrow in fig. 5. Specifically, when a part of the self-locking assembly 40 is inserted into the water inlet joint assembly 20 along a direction parallel to the rotation axis of the water inlet joint assembly 20, the rotation of the water inlet joint assembly 20 in the circumferential direction can be limited after the insertion, and the connection between the water inlet joint assembly 20 and the filter element assembly 10 is ensured to be stable.

Illustratively, as shown in fig. 3 and 5, the self-locking assembly 40 is mounted between the water inlet joint block 114 and the sidewall of the mounting opening 115 in a radial direction perpendicular to the axis of rotation of the water inlet joint assembly 20. In this way, the sidewalls of the water inlet joint seat 114 and the mounting opening 115 can limit the displacement of the self-locking assembly 40 in multiple directions, so that the self-locking assembly can only move in a radial direction perpendicular to the rotation axis of the water inlet joint assembly 20, and the locking effect of the self-locking assembly 40 is ensured. Moreover, the self-locking assembly 40 can be far away from water flow, so that the requirements on the material and the sealing performance of the self-locking assembly 40 are not high, and the cost is reduced.

Illustratively, where the desktop water purifier further includes a seal 50, as shown in fig. 5, the seal 50 may be sealed between the side wall of the mounting opening 115 and the water inlet adapter 114, and the self-locking assembly 40 is located on a side of the seal 50 away from the interior of the filter housing body 111. In this way, the self-locking assembly 40 can be kept away from the water flow.

Illustratively, a radially outwardly recessed latching mounting slot 117 is provided on a sidewall of the mounting opening 115, and the latching assembly 40 is movably mounted to the latching mounting slot 117. The self-locking mounting slot 117 is configured to better limit the movement of the self-locking assembly 40 to only slide along a direction parallel to the rotational axis of the water inlet connector assembly 20, and to be more quickly positioned into the water inlet connector assembly 20. On the other hand, the position of the self-locking assembly 40 in the self-locking mounting groove 117 is more stable, so that the self-locking assembly 40 can have a better stabilizing effect on the water inlet joint assembly 20 when being locked.

Illustratively, a guide portion 1144 may be disposed on an outer side surface of the water inlet joint seat 114, and a guide adapter portion 41 engaged with the guide portion 1144 may be disposed on the self-locking assembly, wherein an extending direction of at least one of the guide portion 1144 and the guide adapter portion 41 is parallel to a moving direction of the self-locking assembly 40. Specifically, the guiding portion 1144 may be an elongated rib protruding from the outer side surface of the water inlet connector seat 114, and the guiding adaptive portion 50 may be a groove adapted to the elongated rib. The movement path of the self-locking assembly 40 can be better limited by the arrangement of the guide portion 1144 and the guide adapter portion 41. In addition, the guide portion 1144 and the guide adapter 41 can limit the position of the water inlet adapter 114, prevent the water inlet adapter 114 from rotating, and further ensure the stability of the connection between the water inlet adapter assembly 20 and the filter element assembly 10.

Specifically, referring to fig. 4 and 6, the water inlet joint seat 114 is embedded in the mounting opening 115, the self-locking assembly 40 includes a moving member 42 and an operating member 43, the moving member 42 is installed between the water inlet joint seat 114 and the sidewall of the mounting opening 115, and the operating member 43 is connected to the moving member 42 and protrudes from the outer side surface of the mounting opening 115 in the radial direction. The operating part 43 protrudes from the mounting opening 115, so that when the self-locking assembly 40 needs to be moved, the moving part 42 can be driven by applying force to the operating part 43, the self-locking assembly 40 is moved, and the self-locking assembly is moved to an unlocking position or a locking position as required, and the operation is more convenient.

Illustratively, as shown in fig. 7-8, an end face 1151 of mounting opening 115 is provided with a cutout 1152 recessed into filter housing 11, and operating member 43 is received within cutout 1152 in a direction parallel to the axis of rotation when self-locking assembly 40 is in the unlocked position. Thus, when the self-locking assembly 40 is in the unlocked position, the self-locking assembly 40 can be integrally embedded in the mounting opening 115, and the structure is more compact and reasonable.

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.

For ease of description, relative terms of regions such as "above … …", "above … …", "on … …", "above", etc. may be used herein to describe the regional positional relationship of one or more components or features to other components or features shown in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations 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 above embodiments, and that many variations and modifications may be made in accordance with the teachings of the present invention, all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A desktop water purifier, comprising:

the filter element assembly comprises a filter shell and a filter element arranged in the filter shell, and the filter shell is provided with a filter shell water inlet and a filter shell water outlet;

the water inlet joint component is screwed or screwed to the water inlet of the filter shell; and

a self-locking assembly movably disposed on the filter housing between a locked position and an unlocked position, the self-locking assembly partially inserted into the water inlet joint assembly when in the locked position and separated from the water inlet joint assembly when in the unlocked position.

2. The desktop water purifier of claim 1, wherein the self-locking assembly is movable between the locked position and the unlocked position in a direction parallel to an axis of rotation of the water inlet joint assembly.

3. The desktop water purifier as recited in claim 1, wherein the filter housing comprises a filter housing body and a water inlet adapter, the filter housing is provided with an installation opening, the water inlet adapter is fixed to the installation opening, and the water inlet of the filter housing is arranged on the water inlet adapter.

4. The desktop water purifier as recited in claim 3, wherein the self-locking assembly is mounted between the water inlet adapter and a side wall of the mounting opening in a radial direction perpendicular to the axis of rotation of the water inlet adapter assembly.

5. The desktop water purifier as claimed in claim 4, wherein a self-locking installation groove recessed radially outwards is provided on a side wall of the installation opening, and the self-locking assembly is movably installed in the self-locking installation groove.

6. The desktop water purifier as claimed in claim 4, wherein a guide part is provided on an outer side surface of the water inlet joint seat, a guide adapting part matched with the guide part is provided on the self-locking assembly, and an extending direction of at least one of the guide part and the guide adapting part is parallel to a moving direction of the self-locking assembly.

7. The desktop water purifier of claim 6, wherein the water inlet adapter includes a plurality of resilient fingers spaced about the axis of rotation, the plurality of resilient fingers snap onto an annular snap flange in the filter housing body.

8. The desktop water purifier as claimed in claim 4, wherein the water inlet joint seat is embedded in the mounting opening, the self-locking assembly comprises a moving member and an operating member, the moving member is installed between the water inlet joint seat and the side wall of the mounting opening, and the operating member is connected to the moving member and protrudes from the outer side surface of the mounting opening along the radial direction.

9. The desktop water purifier as claimed in claim 8, wherein a cutout recessed into the filter housing is provided on an end surface of the mounting opening, and the operating member is received in the cutout in a direction parallel to the rotational axis when the self-locking assembly is in the unlocked position.

10. The desktop water purifier of claim 1,

the desktop water purifier further comprises a water outlet assembly, and the water outlet assembly is detachably connected to the water outlet of the filter shell.

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