CN215711843U - Water purifier - Google Patents

Abstract

The application discloses a water purifier, which comprises a filter element, a bracket with a sleeve and a filter element seat connected with one end of the sleeve; the sleeve is provided with an assembly cavity, and the filter element is locked on the filter element seat through the assembly cavity; the filter element seat comprises a water path plate and an ejector rod, the water path plate is provided with an accommodating cavity, a water inlet, a water outlet and a guide hole are formed in the accommodating cavity respectively, and the water inlet and the water outlet are communicated with the filter element and an external pipeline respectively; the ejector pin can cooperate with the guiding hole, and the ejector pin can follow guiding hole concertina movement, and the filter core has the installation head of linking with the cooperation of filter core seat, and under the filter core was in the mounted state, the ejector pin compressed and butt installation head, applyed the top to the filter core and held the pretightning force. The application provides a filter core seat structure provides convenience for user's the core process of trading through the setting of ejector pin to make the user need not consume too much strength just can take off the filter core from the filter core seat.

Description

Water purifier

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a water purifier.

Background

Nowadays, water resource pollution is more and more serious, and the problem of urban water safety is particularly serious. Aiming at the problem of secondary pollution of tap water and harmful substances in the tap water caused by source water pollution, more and more families apply water purifiers to filter purified water, so that the water purifiers become one of the visible household appliances in daily life. The water purifier gets rid of impurity such as solid particle, bacterium virus, harmful chemical substance in aquatic through the filter core to make water reach certain cleanliness factor, nevertheless along with the extension of live time, impurity in aquatic can block up the filter core, consequently need regularly unpick and wash or change the filter core, in order to ensure that the water purifier normally works.

At present, common core-changing structures include a clamping type, a rotating disc type, a clamping type and the like. Taking a clamping type core replacing structure as an example, a user usually needs to rotate the filter element by a certain angle in a certain direction to realize the screwing connection between the filter element and the base in the water purifier in the process of replacing the filter element, and then the replacement operation of the filter element is realized by rotating the filter element in the opposite direction. The clamping type core replacing structure is simple in structure, and can realize quick disassembly and replacement of a small filter element in the water purifier.

However, with the progress of technology and the development of industry, there are water purifiers in which the diameter of the filter element is large in order to enhance the flow rate of the filter element. For such a filter element with a larger diameter, a user often needs to expend more force when replacing the filter element, and particularly for users with smaller force, the replacement operation of the filter element with a large flux is extremely difficult. In fact, along with the increase of filter core diameter, no matter be the core structure of trading of joint formula, or the core structure of trading of carousel formula, also or the core structure of trading of buckle formula, the user is when trading the core operation, more or less all will have the problem of changing the difficulty. In addition, some of above-mentioned several kinds of common core structures of trading still need be with the help of supporting assembly and disassembly tools, and it is very loaded down with trivial details, waste time and energy actually to trade the core process.

It will thus be seen that the prior art is susceptible to further improvements and enhancements.

SUMMERY OF THE UTILITY MODEL

The present invention provides a water purifier to solve at least one of the above technical problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a water purifier, which comprises a filter element, a bracket with a sleeve and a filter element seat connected with one end of the sleeve, wherein the filter element seat is provided with a water inlet and a water outlet; the sleeve is provided with an assembly cavity, and the filter element is locked on the filter element seat through the assembly cavity; the filter element seat comprises a water circuit board and an ejector rod, the water circuit board is provided with an accommodating cavity, a water inlet, a water outlet and a guide hole are formed in the accommodating cavity respectively, and the water inlet and the water outlet are communicated with the filter element and an external pipeline respectively; the ejector rod can be matched with the guide hole, the ejector rod can stretch and retract along the guide hole, the filter element is provided with an installation head matched and locked with the filter element seat, and when the filter element is in an installation state, the ejector rod is compressed and abutted against the installation head to apply abutting pretightening force to the filter element.

As a preferred embodiment of the present invention, one of the water inlet and the water outlet is disposed at the axis of the accommodating cavity, and the other of the water inlet and the water outlet is disposed eccentrically; the guide holes are at least two, the connecting line of the two guide holes passes through the axis of the containing cavity, and the two guide holes are positioned at two sides of the water inlet or the water outlet at the axis.

As a preferred embodiment of the present invention, a connecting line of the two guiding holes and a connecting line of the water inlet and the water outlet form an included angle, and the included angle is 15 ° to 75 °.

As a preferred embodiment of the present invention, a radial distance between the guide hole and the water inlet or the water outlet located at the axial center is greater than a radial distance between the water inlet and the water outlet.

As a preferred embodiment of the present invention, two ends of the assembly cavity are through, and the filter element seat is detachably connected to one end of the sleeve; one of the filter element seat and the sleeve is provided with a positioning column, the other of the filter element seat and the sleeve is provided with a positioning groove, the positioning column and the positioning groove are arranged along the periphery of the filter element seat, and the filter element seat is connected to the sleeve at a unique set position.

As a preferred embodiment of the present invention, the waterway plate includes a ring-shaped fixing portion formed with a fixing groove, and an elastic member positioned in the fixing groove; the filter element seat further comprises a pressing plate and a locking ring located between the pressing plate and the water circuit board, the locking ring can rotate along the circumferential direction of the containing cavity on the annular fixing portion, a blocking rib is arranged on one side, facing the fixing groove, of the locking ring, and the blocking rib is located in the fixing groove and can compress the elastic piece in the rotating process of the locking ring.

As a preferred embodiment of the present invention, the side wall of the locking ring is further provided with a shift lever, an arc plate extending toward the pressure plate is arranged at the edge of the water circuit plate, and the shift lever abuts against and slides on the upper edge of the arc plate in the rotating process.

As a preferred embodiment of the present invention, a bar-shaped rib is provided on a side of the shift lever facing the arc plate, the bar-shaped rib extends in a radial direction of the lock ring, and the bar-shaped rib slides in abutment with the arc plate.

In a preferred embodiment of the present invention, a reinforcing rib is disposed at a connection position of the shift lever and the side wall of the locking ring.

As a preferred embodiment of the present invention, a plurality of first connecting posts are uniformly distributed on the periphery of the pressing plate, the waterway plate is provided with a second connecting post corresponding to the plurality of first connecting posts, and the first connecting post and the second connecting post are respectively provided with a first connecting hole and a second connecting hole; the filter element seat further comprises fasteners which respectively penetrate through the first connecting holes and the second connecting holes so as to rotatably limit the locking ring in a gap formed by the pressing plate and the water circuit board.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. the utility model provides a water purifier, which comprises a filter element, a bracket with a sleeve and a filter element seat. Wherein, the filter core seat is connected with telescopic one end, and the filter core passes telescopic assembly chamber and locks in the filter core seat. Specifically, the filter core seat includes water way board and ejector pin to the ejector pin can move in the guiding hole that holds the chamber with the installation head of butt filter core, thereby with the filter core ejecting from the filter core seat. The application provides a filter core seat structure provides convenience for user's the core process of trading through the setting of ejector pin, and the ejector pin directly pushes up to support the filter core for the filter core provides an effort rather than installation opposite direction to make the user need not consume too much strength and just can take off the filter core from the filter core seat. Especially for the filter element with large flux or heavy weight, the structure saves the time for changing the filter element for the user and brings more humanized use experience for the user.

2. As a preferred embodiment of the present invention, since the water circuit board has a higher structural strength at the axis of the accommodating cavity during the process of processing and forming, the structural strength of the water inlet or the water outlet can be well ensured by disposing the water inlet or the water outlet at the axis, and the water inlet or the water outlet is prevented from being deformed or damaged when needing to bear a larger water pressure, thereby improving the structural stability of the filter element holder. In addition, the guiding hole sets up in the mode of water inlet or delivery port both sides, is in fact in order to make the guiding hole hold the axle center position in chamber more to promote the structural strength of guiding hole, and then do benefit to and guarantee the stationarity of ejector pin motion process in the guiding hole, avoid appearing because of the guiding hole takes place to damage or warp and make the unable circumstances of propping up the filter core of ejector pin, so that the filter core seat remains the supplementary core effect of trading of better throughout.

3. As a preferred embodiment of the utility model, on one hand, the filter element seat and the sleeve can be quickly disassembled, assembled and replaced by a detachable connection mode, so that a user can conveniently maintain, clean and the like the filter element seat or the sleeve; on the other hand, the setting of reference column and constant head tank on filter element seat and the sleeve is on realizing the basis of both assembles, through establishing reference column or constant head tank into special mode of arranging to realize the only connection between them. In other words, this application sets reference column and constant head tank to the mode of exclusive connection, can prevent the installation error that appears between filter element seat and the sleeve, avoids the water inlet on the water route board and the unable and outside pipeline condition appearance that is linked together between the pipeline of structures such as delivery port, and then promotes the reliability of filter element seat structure, prevents that the water purifier from leaking in the course of the work. Moreover, the fool-proof design of the unique connection between the filter element seat and the sleeve can simplify the assembly difficulty of the product, and is convenient for the user to operate.

4. As a preferred embodiment of the present invention, the cartridge holder further comprises a pressing plate and a locking ring between the pressing plate and the waterway plate, and the locking ring can rotate along the circumferential direction of the receiving cavity to lock the mounting head on the cartridge during rotation. Furthermore, a deflector rod is arranged on the side wall of the locking ring, the deflector rod structure can be abutted and slide with an arc-shaped plate on the water path plate, the arc-shaped plate can play a certain supporting role for the deflector rod, the locking ring is prevented from deviating in the rotating process, and the situation that the locking ring cannot lock the filter element is avoided; in addition, the bar muscle that sets up on the arc for be line contact between arc and the driving lever, this kind of contact mode does benefit to and reduces frictional damping between the two, does benefit to going on of driving lever or catch rotation process, thereby promotes the sensitivity of filter core seat structure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a water purifier according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filter cartridge seat according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a waterway plate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a push rod according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another filter element holder according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a lock ring according to an embodiment of the present invention.

Wherein,

100 filter elements;

200 brackets, 210 sleeves;

300 filter element seats, 310 water route boards, 311 accommodating cavities, 312 water inlets, 313 water outlets, 314 guide holes, 315 positioning columns, 316 annular fixing parts, 317 fixing grooves, 318 arc-shaped plates, 319 second connecting columns, 320 top rods, 321 rod bodies, 322 ejection parts, 323 clamping parts, 330 pressing plates, 331 first connecting columns, 340 locking rings, 341 blocking ribs, 342 deflector rods, 343 strip-shaped ribs and 344 reinforcing ribs.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In most of the water purifiers on the market, the arrangement of the filter element inside the water purifier is generally divided into two types, one type is a mode in which the filter element is vertically arranged, and the other type is a mode in which the filter element is horizontally arranged. Based on the difference of filter core setting mode, the water purifier all has the difference of different degrees to the operation mode when putting the filter core to the requirement of placing the space, user, perhaps the cheap degree of assembly etc.. If the difference between the filter element setting manners is analyzed by taking the operation manner of the user as an example, the method specifically includes:

when the filter element is vertically arranged, if a user wants to take the filter element out of the water purifier, the corresponding element changing structure needs to be touched, the filter element is lifted vertically upwards after the filter element is unlocked from the filter element seat, and then the filter element is taken to a proper position; when the filter element is transversely arranged, if a user wants to take the filter element out of the water purifier, the corresponding element replacing structure is required to be firstly triggered to unlock the filter element and the filter element seat. However, at this time, the user does not need to lift the filter element upward, but can remove the filter element by pulling in the horizontal direction, which is undoubtedly more labor-saving than the mode in which the filter element is vertically placed.

The filter core can be conveniently taken and placed by a user to a certain extent in a transverse mode, the assembly difficulty of the filter core is reduced, and the use experience of the user is optimized. Although the arrangement manner of the filter element in the water purifier provided by the application is not specifically limited, in order to better combine aspects such as product background, design requirement, and user experience to explain the technical solution, the filter element may be preferably arranged in a horizontal structure.

As shown in fig. 1 to 3, the present invention provides a water purifier including a filter cartridge 100 and a bracket 200 having a sleeve 210, and a cartridge holder 300 coupled to one end of the sleeve 210. Wherein the sleeve 210 has a fitting cavity (not shown), the filter cartridge 100 is locked to the filter cartridge holder 300 via the fitting cavity, and the filter cartridge holder 300 includes a waterway plate 310 and a plunger 320.

Further, the water board 310 has an accommodating cavity 311, and a water inlet 312, a water outlet 313 and a guiding hole 314 are respectively opened in the accommodating cavity 311, and the water inlet 312 and the water outlet 313 are respectively communicated with the filter element 100 and an external pipeline (not shown in the figure). The push rod 320 can be matched with the guide hole 314, and the push rod 320 can move telescopically along the guide hole 314, the filter element 100 has a mounting head (not shown) matched and locked with the filter element seat 300, when the filter element 100 is in a mounting state, the push rod 320 is compressed and abutted against the mounting head, and a jacking pre-tightening force is applied to the filter element 100.

It should be noted that the present application is not limited to the specific structure of the top bar 320, and may be the structure shown in fig. 2 and fig. 4, specifically including a rod 321, and a top-out portion 322 and a locking portion 323 respectively disposed at two ends of the rod 321. The diameter of the ejection part 322 is larger than that of the rod body 321, so as to increase the contact area between the ejection part 322 and the mounting head in the filter element 100 and ensure that the ejector rod 320 has a better ejection effect; the latch 323 is provided to engage with a sidewall stop at the bottom of the guide hole 314 to prevent the plunger 320 from coming out of the guide hole 314. Of course, it can be understood by those skilled in the art that the top bar 320 can have other various embodiments besides the above structure, for example, the top bar 320 can be configured as a cylinder with a uniform diameter, and the bottom periphery of the cylinder is provided with an annular rib; the top bar 320 can be even a prism, a triangular column, etc. with a blocking rib. Accordingly, the structure of the guide hole 314 formed in the waterway plate 310 is preferably a structure adapted to the structure of the plunger 320, depending on the structure of the plunger 320.

The application provides a filter core seat structure provides convenience for user's the core process of trading through the setting of ejector pin 320, and ejector pin 320 directly pushes up and supports filter core 100 for filter core 100 provides an effort rather than the installation direction to make the user need not consume too much strength just can take off filter core 100 from filter core seat 300. Especially for the filter element with large flux or heavy weight, the structure saves the time for changing the filter element for the user and brings more humanized use experience for the user.

As a preferred embodiment of the present invention, with continued reference to fig. 3, one of the water inlet 312 and the water outlet 313 is disposed at the axial center of the accommodating cavity 311, and the other is disposed eccentrically; in addition, at least two guide holes 314 are provided, a connection line of the two guide holes 314 passes through the axial center of the accommodating cavity 311, and the two guide holes 314 are located at both sides of the water inlet 312 or the water outlet 313 at the axial center.

Because the water route board 310 is in the machine-shaping in-process, the structural strength of its holding cavity 311 axle center department is higher, consequently sets up water inlet 312 or delivery port 313 in the mode of axle center department, can ensure the structural strength of water inlet 312 or delivery port 313 well, prevents that water inlet 312 or delivery port 313 from taking place deformation or damage when needing to bear great water pressure to promote the stability of filter core seat structure. In addition, the guiding hole 314 is disposed on both sides of the water inlet 312 or the water outlet 313, and is actually used for enabling the guiding hole 314 to be closer to the axial center of the accommodating cavity 311, so as to improve the structural strength of the guiding hole 314, thereby facilitating the stability of the movement process of the ejector rod 320 in the guiding hole 314, avoiding the situation that the ejector rod 320 cannot prop against the filter element 100 due to the damage or deformation of the guiding hole 314, and enabling the filter element seat 300 to always maintain a good auxiliary core replacing effect.

Further, the two guide holes 314 are symmetrically arranged on two sides of the water inlet 312 or the water outlet 313 at the axial center, and the arrangement mode can also improve the ejection effect of the ejector rod 320 on the filter element 100, and compared with the asymmetric arrangement mode of the guide holes 314, the arrangement mode can well avoid the offset of the filter element 100 in the ejection process, so that a user can conveniently take down the filter element 100 from the filter element seat 300 and the sleeve 210.

In a specific example, the connecting line of the two guiding holes 314 and the connecting line of the water inlet 312 and the water outlet 313 are arranged at an angle of 15-75 °. Further, the radial distance between the guiding hole 314 and the water inlet 312 or the water outlet 313 at the axial center is greater than that between the water inlet 312 and the water outlet 313. The existence of the included angle between the connecting line of the two guide holes 314 and the connecting line of the water inlet 312 and the water outlet 313 can limit the distance between the guide holes 314 and the connecting line of the water inlet 312 and the water outlet 313 to a certain extent, and the purpose of improving the structural strength of the guide holes due to too long distance is prevented. The range of the included angle is determined according to the actual design requirement and production process of the product, which is not limited in this embodiment.

In addition, the radial distance between the guiding hole 314 and the water inlet 312 or the water outlet 313 is greater than the radial distance between the water inlet 312 and the water outlet 313, and the arrangement mode can avoid the stress concentration phenomenon caused by too close holes formed in the waterway plate 310, so that the stability of the waterway plate structure is improved.

In one embodiment, referring to fig. 5, the two ends of the assembly cavity are through, and the filter cartridge holder 300 is detachably connected to one end of the sleeve 210; one of the filter element holder 300 and the sleeve 210 is provided with a positioning post 315, the other is provided with a positioning groove (not shown), the positioning post 315 and the positioning groove are arranged along the periphery of the filter element holder 300, and the filter element holder 300 is connected to the sleeve 210 at a unique set position.

In the present embodiment, the number of the positioning columns 315 is not limited, and may be, for example, four positioning columns as shown in fig. 5, or three, five, or six positioning columns. In addition, when the positioning columns 315 are multiple, the positioning columns may be arranged at equal distances or at unequal distances. And, when the distance between a plurality of reference columns is not equal, can be more convenient for the user to assemble between filter core seat 300 and sleeve 210, reduce the assembly error rate between the two.

In addition to the unique connection between the cartridge holder 300 and the sleeve 210, the present application can also provide the connection between the cartridge holder 300 and the sleeve 210 by providing the positioning posts 315 or positioning slots in a specific configuration. Specifically, for example, the positioning columns 315 can be set to be four, two adjacent positioning columns are in a hexagonal prism structure, the other two positioning columns are in a cylindrical structure, and the structure of the positioning groove is respectively matched with the hexagonal prism and the cylindrical structure, which is not limited by the specific structures of the positioning columns 315 and the positioning groove in the present application.

According to the filter element holder 300 provided by the application, on one hand, the filter element holder 300 and the sleeve 210 can be quickly disassembled, assembled and replaced in a detachable connection mode, so that a user can conveniently maintain, clean and the like the filter element holder 300 or the sleeve 210; on the other hand, the positioning columns 315 and the positioning grooves on the filter element base 300 and the sleeve 210 are arranged on the basis of assembling the two, and the positioning columns 315 or the positioning grooves are arranged in a special arrangement mode, so that the only connection between the two is realized. In other words, this application sets reference column 315 and constant head tank to the mode of exclusive connection, can prevent the installation error that appears between filter element seat 300 and the sleeve 210, avoids the water inlet 312 on the water route board 310 and the condition that is linked together between the unable and outside pipeline of structures such as delivery port 313 to appear, and then promotes the reliability of filter element seat structure, prevents that the water purifier from appearing leaking in the course of the work. Moreover, the fool-proof design of the unique connection between the cartridge holder 300 and the sleeve 210 can simplify the assembly difficulty of the product, and facilitate the operation of the user.

As a preferred embodiment of the present invention, referring to fig. 2, 3 and 6, the water passage plate 310 may include a ring-shaped fixing portion 316 having a fixing groove 317, and an elastic member (not shown) positioned in the fixing groove 317. The cartridge holder 300 may further include a pressing plate 330 and a locking ring 340 located between the pressing plate 330 and the water passage plate 310, the locking ring 340 may rotate on the annular fixing portion 316 along a circumferential direction of the receiving cavity 311, and a side of the locking ring 340 facing the fixing groove 317 is provided with a blocking rib 341, and the blocking rib 341 is located in the fixing groove 317 and may compress the elastic member during rotation of the locking ring 340. The elastic member in this embodiment may be an annular spring adapted to the fixing groove 317, or may be an elastic sheet, an elastic rubber member, or an elastic silicone member, and the application is not limited to the type of the elastic member.

Further, as shown in fig. 3 and fig. 6, the side wall of the locking ring 340 is further provided with a shift lever 342, an arc plate 318 extending toward the pressing plate 330 is provided at the edge of the water plate 310, and the shift lever 342 slides in abutment with the upper edge of the arc plate 318 during the rotation process. The arc-shaped plate 318 can support the shifting rod 342 to a certain extent, so that the locking ring 340 is prevented from shifting in the rotating process, and the situation that the locking ring 340 cannot lock the filter element 100 is avoided.

Preferably, a side of the shift lever 342 facing the arc plate 318 may be further provided with a rib 343, the rib 343 extends in a radial direction of the lock ring 340, and the rib 343 slides in abutment with the arc plate 318. The strip-shaped rib 343 arranged on the arc-shaped plate 318 can enable the arc-shaped plate 318 and the shifting rod 342 to be in line contact, the contact mode is favorable for reducing the friction damping between the arc-shaped plate 318 and the shifting rod 342, and the shifting rod 342 or the locking ring 340 can rotate in the process, so that the sensitivity of the filter element seat structure is improved. In addition, the arrangement of the rib 343 is also beneficial to enhancing the structural strength of the shift lever 342 itself, and preventing the shift lever 342 from being damaged or deformed due to excessive external force. The number of the bar ribs 343 is not limited in the present application, and may be one, two, three, four, or more.

Still further, a reinforcing rib 344 may be further disposed at a connection portion of the driving lever 342 and a side wall of the locking ring 340, and the reinforcing rib 344 may improve a connection strength between the driving lever 342 and the locking ring 340, and enhance an integrity between the driving lever 342 and the locking ring 340, so that the locking ring 340 may rotate along with the rotation of the driving lever 342.

In another specific example, a plurality of first connection posts 331 are uniformly distributed on the periphery of the pressing plate 330, the water circuit board 310 is provided with second connection posts 319 corresponding to the plurality of first connection posts 331, and the first connection posts 331 and the second connection posts 319 respectively open first connection holes (not marked in the figure) and second connection holes (not marked in the figure). In addition, the cartridge holder 300 further includes fasteners (not shown) that pass through the first and second coupling holes, respectively, to rotatably restrain the locking ring 340 in a gap formed between the pressing plate 330 and the water circuit board 310. The fastener may be a threaded fastener such as a screw or a bolt, a plug-in type fastener such as a pin or a stud, or a fixed type fastener such as a rivet or a welding nail, and the type of the fastener is not limited in the present application.

It should be understood that the present application is not limited to the manner of assembly between pressure plate 330 and waterway plate 310, and that the assembly between pressure plate 330 and waterway plate 310 may be a multi-position assembly or a single-position assembly. When the multi-position assembly is adopted between the pressure plate 330 and the waterway plate 310, one of the pressure plate 330 and the waterway plate 310 can be used as a standard component for processing and production, so that the production cost and the whole machine cost of parts are reduced in the production process of mass products, and the parts can be conveniently detached, maintained and replaced in the later period;

when the pressure plate 330 and the waterway plate 310 are assembled at a unique position, for example, the distances between the plurality of first connecting columns 331 or the plurality of second connecting columns 319 may be set to be unequal, and the plurality of first connecting columns 331 or the plurality of second connecting columns 319 may be set to be in a specific structure (such as a hexagonal prism, a cylinder, etc.), so as to reduce the assembling error between the pressure plate 330 and the waterway plate 310 and reduce the assembling difficulty between the pressure plate 330 and the waterway plate 310.

The method can be realized by adopting or referring to the prior art in places which are not described in the utility model.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A water purifier comprises a filter element, a bracket with a sleeve and a filter element seat connected with one end of the sleeve; the sleeve is provided with an assembly cavity, and the filter element is locked on the filter element seat through the assembly cavity; it is characterized in that the preparation method is characterized in that,

the filter element seat comprises a water circuit board and an ejector rod, the water circuit board is provided with an accommodating cavity, a water inlet, a water outlet and a guide hole are formed in the accommodating cavity respectively, and the water inlet and the water outlet are communicated with the filter element and an external pipeline respectively;

the ejector rod can be matched with the guide hole, the ejector rod can stretch and retract along the guide hole, the filter element is provided with an installation head matched and locked with the filter element seat, and when the filter element is in an installation state, the ejector rod is compressed and abutted against the installation head to apply abutting pretightening force to the filter element.

2. The water purifier as recited in claim 1, wherein one of said water inlet and said water outlet is disposed at an axial center of said accommodating chamber, and the other of said water inlet and said water outlet is disposed eccentrically;

the guide holes are at least two, the connecting line of the two guide holes passes through the axis of the containing cavity, and the two guide holes are positioned at two sides of the water inlet or the water outlet at the axis.

3. The water purifier of claim 2, wherein a line connecting the two guide holes forms an included angle with a line connecting the water inlet and the water outlet, and the included angle is 15-75 °.

4. The water purifier as recited in claim 2, wherein said pilot hole is spaced radially farther from said water inlet or said water outlet at said axial center than said water inlet and said water outlet.

5. The water purifier as recited in claim 1, wherein said fitting chamber is perforated at both ends thereof, and said cartridge holder is detachably coupled to one end of said sleeve;

one of the filter element seat and the sleeve is provided with a positioning column, the other of the filter element seat and the sleeve is provided with a positioning groove, the positioning column and the positioning groove are arranged along the periphery of the filter element seat, and the filter element seat is connected to the sleeve at a unique set position.

6. The water purifier as recited in any one of claims 1 to 5, wherein the water passage plate includes a ring-shaped fixing portion formed with a fixing groove, and an elastic member positioned in the fixing groove;

the filter element seat further comprises a pressing plate and a locking ring located between the pressing plate and the water circuit board, the locking ring can rotate along the circumferential direction of the containing cavity on the annular fixing portion, a blocking rib is arranged on one side, facing the fixing groove, of the locking ring, and the blocking rib is located in the fixing groove and can compress the elastic piece in the rotating process of the locking ring.

7. The water purifier as recited in claim 6, wherein said side wall of said locking ring is further provided with a deflector, an arc plate extending toward said pressing plate is provided at an edge of said water passage plate, and said deflector slides in abutment with an upper edge of said arc plate during rotation.

8. The water purifier as claimed in claim 7, wherein a rib is provided to a side of the lever facing the arc plate, the rib extending in a radial direction of the locking ring, the rib sliding in abutment with the arc plate.

9. The water purifier as recited in claim 7, wherein a reinforcing rib is provided at a junction of said deflector rod and said side wall of said locking ring.

10. The water purifier as recited in claim 6, wherein a plurality of first connecting posts are uniformly distributed on the periphery of the pressing plate, the waterway plate is provided with second connecting posts corresponding to the plurality of first connecting posts, and the first connecting posts and the second connecting posts are respectively provided with first connecting holes and second connecting holes;

the filter element seat further comprises fasteners which respectively penetrate through the first connecting holes and the second connecting holes so as to rotatably limit the locking ring in a gap formed by the pressing plate and the water circuit board.

Images