CN211724947U

CN211724947U - Filter element assembly and water purifier with same

Info

Publication number: CN211724947U
Application number: CN201922098486.8U
Authority: CN
Inventors: 杨浩
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-10-23
Anticipated expiration: 2029-11-28

Abstract

The utility model provides a filter element group spare and purifier that has it. The filter element component comprises a filter bottle, a check valve and a pressure plate, wherein the check valve comprises a valve element mounting seat; the end part of the filter bottle is provided with a mounting hole, and the valve core mounting seat is inserted in the mounting hole; the pressure plate is connected to the end face of the end of the filter bottle, and the end face of the valve core mounting seat abuts against the pressure plate. As can be seen, the valve body mount is restricted in the axial direction by the pressure plate in the mount hole. Therefore, in the using process, even if a large amount of water flows out of the filter flask, the pressure plate can also prevent the valve core mounting seat from falling off from the mounting hole, the water leakage phenomenon caused by the condition is avoided, and the product quality is improved.

Description

Filter element assembly and water purifier with same

Technical Field

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

Background

With the improvement of living standard, the water quality requirement of people on domestic water is higher and higher. The water purification effect of purifier mainly filters through filter element group spare and realizes, and in order to guarantee the water purification quality, filter element group spare will regularly change. In order to prevent the water inside the filter element assembly from leaking out when the filter element assembly is replaced, a check valve is often arranged at the water gap of the filter element assembly.

However, when the existing check valve is installed in the filter element assembly, the outer peripheral wall of the valve element installation seat is in fit connection with the inner peripheral wall of the water passing channel of the filter element assembly, a sealing ring and a pressing plate are arranged at the outlet of the water passing channel, the sealing ring is limited at the position of the water passing channel through the pressing plate, the inner diameter of the sealing ring is smaller than the maximum outer diameter of the check valve, and therefore the check valve is prevented from falling out of the water passing channel through the sealing ring. However, after long-time use, due to reasons such as aging and deformation of the sealing ring and impact of high-pressure water flow, the check valve is easy to fall out from the water channel after the sealing ring is extruded, so that the water leakage phenomenon of the water purifier occurs.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems in the prior art, a filter element assembly is provided, which comprises a filter bottle, a check valve and a pressure plate, wherein the check valve comprises a valve core mounting seat; the end part of the filter bottle is provided with a mounting hole, and the valve core mounting seat is inserted in the mounting hole; the pressure plate is connected to the end face of the end of the filter bottle, and the end face of the valve core mounting seat abuts against the pressure plate.

As can be seen, the valve body mount is restricted in the axial direction by the pressure plate in the mount hole. Because the biggest external diameter of case mount pad is greater than the internal diameter that the mouth of a river was crossed to the clamp plate, so in the use, even there is a large amount of rivers to flow from the filter flask, also can be owing to be provided with the clamp plate at the tip of filter flask, and block that the case mount pad drops from the mounting hole, avoided appearing this condition and the phenomenon of leaking that leads to, improved the quality of product.

Illustratively, the valve core mounting seat is provided with a through hole for mounting the valve core, the pressure plate is provided with a pressure plate water drainage port coaxial with the through hole, the filter element assembly further comprises a first sealing ring clamped between the valve core mounting seat and the pressure plate, and at least one part of the first sealing ring is embedded into the through hole and/or the side wall of the pressure plate water drainage port.

Through setting up first sealing washer, can guarantee the sealing connection between case mount pad and the clamp plate.

Illustratively, the through hole on the valve element mounting seat is a stepped hole with a step, the step divides the stepped hole into a large-size section and a small-size section, wherein the inner diameter of the large-size section is larger than that of the small-size section, the large-size section faces the pressure plate and extends to the end face of the valve element mounting seat, the inner diameter of the large-size section is larger than that of the water passing opening of the pressure plate, and at least one part of the first sealing ring is embedded into the large-size section and clamped between the step and the pressure plate.

The through hole of the valve core mounting seat is set to be the step hole, the first sealing ring is mounted on the large-size section, the first sealing ring can be conveniently mounted, the first sealing ring can be mounted in place before the pressing plate is mounted, and mounting reliability is guaranteed.

Illustratively, the inner diameter of the first seal ring is smaller than the inner diameter of the pressure plate water passing opening and smaller than the inner diameter of the small-size section.

Like this, be held the first sealing washer of holding between case mount pad and clamp plate and can keep radial seal relation with the inlet outlet of straining the seat, further improved the sealed effect of filter element group spare and straining the seat installation back.

Illustratively, the pressing plate water gap is a stepped hole with steps, the steps divide the stepped hole into a large-size section and a small-size section, wherein the inner diameter of the large-size section is larger than the inner diameter of the small-size section, the large-size section faces the valve core mounting seat and extends to the surface of the pressing plate, the end surface of the valve core mounting seat abuts against the surface, and at least one part of the first sealing ring is embedded into the large-size section and clamped between the steps and the valve core mounting seat.

During installation, the first sealing ring can be placed on the step of the pressing plate water passing port, and then the first sealing ring and the pressing plate water passing port are installed on the end face of the water passing end of the filter bottle together. The installation process is convenient.

Illustratively, the inner diameter of the first seal ring is smaller than the inner diameter of the small-sized section and smaller than the inner diameter of the through hole.

Illustratively, the inner diameter of the large-size section is larger than the inner diameter of the through hole and smaller than the outer diameter of the valve core mounting seat, so that the valve core mounting seat can be ensured to abut against the pressure plate.

Exemplarily, the mounting hole is a plurality of, the check valve is a plurality of, a plurality of check valves with a plurality of mounting holes respectively one-to-one, the clamp plate is integrative.

Therefore, the tightness of each connecting point can be conveniently checked, the risk of water leakage is reduced, and the product quality is improved. In addition, the mounting time can be reduced to the maximum extent during mounting.

Exemplarily, the filter element assembly further comprises a second sealing ring, the second sealing ring is sleeved on the valve core mounting seat, and the second sealing ring is clamped between the valve core mounting seat and the inner wall of the mounting hole.

Like this, form annular seal between case mount pad and the filter flask, can play better sealed effect, can not reduce sealed effect because hydraulic effect, consequently can effectively reduce the risk of leaking.

Illustratively, the through hole of the valve element mounting seat is provided with a mounting seat water drainage port at the end part far away from the pressure plate, the inner diameter of the mounting seat water drainage port is smaller than the inner diameter of other parts of the through hole, the valve element is provided with a first end and a second end which are opposite, the valve element penetrates through the mounting seat water drainage port, so that the first end and the second end are respectively positioned at two sides of the mounting seat water drainage port, the first end faces the pressure plate, and the check valve further comprises an elastic member and a third sealing ring, wherein the elastic member is sleeved on the valve element and clamped between the mounting seat water drainage port and the first end; the third seal ring is connected to the second end, and the outer diameter of the third seal ring is larger than the inner diameter of the mounting seat water drainage port, so that the valve core is kept on the mounting seat water drainage port, wherein the valve core has a cut-off position and a conducting position, and in the cut-off position, the third seal ring is clamped between the mounting seat water drainage port and the second end; in the on position, the third seal ring is disposed spaced apart from the second end.

That is to say, the installation of check valve does not rely on subsequent installation step, and after having installed the check valve like this, can check whether the check valve can normally work, ensures to install in place, and then avoids influencing product quality because the problem of leaking in the use. In addition, the check valve is connected with the end part of the filter flask through the valve core mounting seat, the valve core mounting seat can be formed through injection molding of a mold, the size is easy to control, and therefore the water leakage risk caused by poor mounting and matching can be reduced.

According to another aspect of the present invention, there is also provided a water purifier, comprising any one of the filter element assemblies as described above.

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 an exploded view of a filter element assembly according to an exemplary embodiment of the present invention;

fig. 2 is a cross-sectional view of a filter cartridge assembly according to an exemplary embodiment of the present invention;

FIG. 3 is an enlarged view of section I of FIG. 2;

FIG. 4 is a close-up view of a filter element assembly according to another exemplary embodiment of the present invention;

FIG. 5 is a schematic view of a plurality of check valves coupled to a pressure plate in accordance with an exemplary embodiment of the present invention; and

fig. 6 is a perspective view of a valve cartridge according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a filter flask; 110. an end portion; 111. mounting holes; 112. a groove; 200. a filter element; 300. a check valve; 310. a valve core mounting seat; 311. a stepped bore; 312. a large-size section; 313. a small-sized section; 314. a water outlet of the mounting seat; 315. an annular groove; 316. facing the filter base end; 317. away from the filter base end; 318. a step; 319. a through hole; 320. a valve core; 321. a water flow channel; 322. a first end; 323. a second end; 324. a main body; 325. an end cap; 326. a chucking section; 330. an elastic member; 340. a third seal ring; 350. a second seal ring; 400. pressing a plate; 410. pressing plate water passing holes; 420. a first seal ring; 400', a pressure plate; 410', a pressing plate water gap; 411' and steps; 412', large size section; 413', small size section.

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.

As shown in fig. 1-4, the utility model provides a filter element assembly of a water purifier. The cartridge assembly includes a cartridge 100, a check valve 300, and a pressure plate 400. The filter bottle 100 may be cylindrical, and a filter element 200 is disposed therein, and the filter element 200 may be a PP cotton filter element, an activated carbon filter element, a reverse osmosis membrane filter element, an ultrafiltration filter element, or the like.

Check valve 300 may include a cartridge mount 310. The cartridge mount 310 is used to mount the cartridge 320. The spool mount 310 has a through hole therein, and the spool 320 is mounted to the through hole. The valve spool 320 may have an on position and an off position. When the valve core 320 is in the conducting position, water can enter and exit the filter flask 100 through the through hole of the valve core mounting seat 310, and when the valve core 320 is in the stopping position, the valve core 320 can block the inside and the outside of the filter flask 100, so as to prevent the water in the filter flask 100 from flowing out. The valve cartridge 320 will be described in detail below.

An end portion 110 of the filter flask 100 is provided with an axially extending mounting hole 111, and the valve element mounting seat 310 is inserted into the mounting hole 111. The cartridge mount 310 may be installed to be fitted with the mounting hole 111 such that the inside and the outside of the filter flask 100 communicate only through the through hole of the cartridge mount 310. The valve core 320 is installed in the through hole, and the valve core 320 can enable and disable the water path from the filter bottle 100.

The pressure plate 400 is attached to the end face of the end 110 of the filter bottle 100. The end face of the cartridge mount 310 abuts the pressure plate 400, as shown in FIG. 3. Thus, the spool mount 310 is restricted in the axial direction by the pressure plate 400 within the mounting hole 111. In the using process, even if a large amount of water flows out of the filter flask 100, the end part of the filter flask 100 is provided with the pressing plate 400, so that the valve core mounting seat 310 is prevented from falling off from the mounting hole 111, the water leakage phenomenon caused by the situation is avoided, and the product quality is improved.

The platen 400 has a platen drain 410. The pressing plate water passing opening 410 is coaxially arranged with the through hole on the valve core mounting seat 310. The pressure plate 400 and the end 110 of the filter flask may be connected by threaded fasteners. Like this, the spare part of filter element group spare can be dismantled, in case use or the purifier breaks down in the installation, can disassemble at any time to maintenance and routine maintenance are convenient for. In addition, compared with the prior art in which the ultrasonic welding process is used between the end portion 110 of the filter flask and the pressing plate 400, the water leakage phenomenon caused by the process defects can be reduced, and the reliability of the product is improved.

The cartridge assembly also includes a first sealing ring 420 that is clamped between the cartridge mount 310 and the pressure plate 400. At least a portion of the first packing 420 is fitted into the through hole of the cartridge holder 310 and/or the sidewall of the pressure plate drain port 410. By providing the first packing 420, the sealing connection between the cartridge holder 310 and the pressing plate 400 can be ensured.

Illustratively, the through-hole of the poppet seat 310 may be a stepped hole 311 having a step 318, as shown in fig. 3. The step 318 divides the stepped bore 311 into a large-sized section 312 and a small-sized section 313. The large-sized section 312 has an inner diameter larger than that of the small-sized section 313. The large-sized section 312 faces the platen 400 and extends to the end surface of the cartridge mount 310. The end face abuts against the platen 400. The inner diameter of the large-sized section 312 is larger than that of the platen drain port 410. At least a portion of the first seal ring 420 is embedded within the oversized section 312 and clamped between the step 318 and the platen 400. The through hole of the valve core mounting seat 310 is set to be the stepped hole 311, and the first sealing ring 420 is mounted on the large-size section 312, so that the first sealing ring 420 can be conveniently mounted, and the first sealing ring 420 can be ensured to be mounted in place before the pressing plate 400 is mounted, and the mounting reliability is ensured.

The platen drain 410 is used to connect the filter element assembly to the water inlet and outlet of a filter base (not shown). Illustratively, a groove 112 may be provided below the mounting hole 111 on the end 110 of the filter flask 100, and the pressing plate 400 may be inserted into the groove 112. A first sealing ring 420 may seal between the pressure plate 400 and the cartridge mount 310. A receiving cavity 800 for receiving the filter base water inlet and outlet is arranged between the mounting base water outlet 314 and the pressing plate water outlet 410. When the pressing plate 400 is pressed into the groove 112, the first sealing ring 420 is pressed, so that the first sealing ring 420 is sealed in the large-size section 312 between the valve core mounting seat 310 and the pressing plate 400, and since the inner diameter of the large-size section 312 is larger than that of the pressing plate water gap 410, the movement of the first sealing ring 420 in the radial direction is limited and cannot fall off from the pressing plate water gap 410. And the first sealing ring 420 connects the valve core mounting seat 310 and the water inlet and outlet on the filter seat, and also has a sealing effect.

The receiving chamber 800 actually belongs to a portion of the through hole in the cartridge mount 310. The receiving cavity 800 is generally cylindrical, and the mounting seat water outlet 314 and the pressing plate water outlet 410 are respectively arranged at two ends of the cylinder. When the corresponding inlet and outlet ports on the cartridge are inserted into the end 110 of the bottle, the inlet and outlet ports on the cartridge are inserted through the platen screen 410 into the receiving cavity 800. The receiving cavity 800 may guide the water inlet and outlet of the filter seat to align with the mount water outlet 314 in an axial direction, thereby pushing the valve core 320 to move upward to conduct the check valve 300.

Preferably, the inner diameter of the first sealing ring 420 is smaller than the inner diameter of the pressing plate water gap 410 and smaller than the inner diameter of the small-sized section 313. In this way, the first sealing ring 420 clamped between the valve core mounting seat 310 and the pressure plate 400 can maintain a radial sealing relationship with the water inlet and outlet of the filter base, and the sealing effect of the filter core assembly and the filter base after installation is further improved.

In the above embodiment, the first packing 420 is fitted into the through hole of the cartridge holder 310. In another embodiment, as shown in fig. 4, the first sealing ring 420 may be embedded in the platen drain 410 'of the platen 400'. The platen drain 410 'is a stepped bore having a step 411'. The step 411 ' divides the stepped bore into a large size section 412 ' and a small size section 413 '. The inner diameter of the large-sized section 412 'is larger than that of the small-sized section 413'. The large-sized section 412 'faces the cartridge mount 310 and extends to the surface of the platen 400'. Against which the end face of the cartridge mount 310 abuts. At least a portion of the first sealing ring 420 is embedded in the large-sized section 412 'and clamped between the step 411' and the cartridge mount 310. When the filter bottle is installed, the first sealing ring 420 can be firstly placed on the step 411 'of the pressing plate water passing opening 410', and then the first sealing ring and the pressing plate water passing opening are installed together on the end face of the water passing end of the filter bottle. The installation process is convenient.

Preferably, the inner diameter of the first sealing ring 420 is smaller than the inner diameter of the small-sized section 413' and smaller than the inner diameter of the through hole 319 on the cartridge mount 310, as shown in fig. 4. In this way, the first sealing ring 420 clamped between the valve core mounting seat 310 and the pressure plate 400' can maintain a radial sealing relationship with the water inlet and outlet of the filter base, and further improves the sealing effect after the filter core assembly and the filter base are mounted.

Preferably, the inner diameter of the large-sized section 412 'is greater than the inner diameter of the through hole 319 and less than the outer diameter of the poppet seat 310, so that the poppet seat 310 can be secured against the pressing plate 400'.

Further, alternatively, the embodiments shown in fig. 3 and 4 may be combined, that is, the through hole 319 of the cartridge mount 310 and the pressure plate drain port 410 'are both provided as stepped holes, and the first seal ring is fitted into the through hole 319 of the cartridge mount 310 and the side wall of the pressure plate drain port 410'.

Illustratively, as shown in fig. 2 and 5, the end 110 of the filter bottle 100 may have a plurality of mounting holes 111. The check valves 300 are also provided in plural numbers, and the check valves 300 are respectively provided in one-to-one correspondence with the mounting holes 111 and mounted in the mounting holes 111. The pressure plate 400 is a unitary member on which a plurality of pressure plate drain openings 410 corresponding to the mounting holes 111 are provided.

The filter bottle 100 may have a cylindrical shape, and the end portion 110 of the filter bottle is provided with a plurality of mounting holes 111, and each mounting hole 111 forms a different water passage, such as a pure water passage, a raw water passage, and a waste water passage, which are respectively fitted with the filter membranes of the filter cartridges 200 in the filter bottle 100, so that water can be filtered in the closed space of the filter bottle 100. In order to be matched with the mounting holes 111, the check valves are multiple, as shown in fig. 5, the filter element assembly is provided with 3 check valves, namely a check valve 300, a check valve 300 ', and valve core mounting seats of the 3 check valves 300, 300 ' and 300 ' can be arranged in a split manner as shown in fig. 5, so that the sealing performance of each connecting point can be conveniently checked, the risk of water leakage is reduced, and the product quality is improved. In addition, the mounting time can be reduced to the maximum extent during mounting. In embodiments not shown, the filter element assembly may also have 2 or 4 or more check valves.

Illustratively, the cartridge assembly further comprises a second sealing ring 350, the second sealing ring 350 is sleeved on the cartridge mounting seat 310, and the second sealing ring 350 is clamped between the cartridge mounting seat 310 and the inner wall of the mounting hole 111.

The cartridge mount 310 has a cartridge facing end 316 and a cartridge distal end 317, the cartridge facing end 316 facing the cartridge in use, the cartridge distal end 317 being opposite the cartridge facing end 316, and a second seal 350 disposed on the cartridge distal end 317. Thus, an annular seal is formed between the valve core mounting seat 310 and the filter flask 100, a better sealing effect can be achieved, the sealing effect cannot be reduced due to the effect of water pressure, and therefore the risk of water leakage can be effectively reduced.

Illustratively, the cartridge mount 310 has an annular groove 315 on an outer peripheral surface of an end portion remote from the pressure plate 400, and the second seal ring 350 is disposed in the annular groove 315. Therefore, when the sealing connection between the check valve 300 and the mounting hole 111 is formed, only the annular groove 315 on the outer edge of the valve core mounting seat 310, which is far away from the filter seat end 317, is required to be sleeved with the second sealing ring 350, so that the installation is convenient; and second sealing washer 350 forms sealed effect in radial direction, and radial direction's sealed can play better sealed effect, compares in axial seal, can not reduce sealed effect because of hydraulic effect, consequently can effectively reduce the risk of leaking. The number of the annular grooves 315 may be one, or two or more, and correspondingly, the second sealing ring 350 may be one, or two or more, that is, the annular grooves 315 may be annular grooves provided along the periphery of the valve cartridge mounting seat 310, or annular grooves provided at intervals on the periphery of the valve cartridge mounting seat 310.

Illustratively, the through-bore of the cartridge mount 310 has a mount water passage 314 at an end distal from the pressure plate 400. The inner diameter of the mount water passing opening 314 is smaller than the inner diameter of the other part of the through hole.

The valve core 320 may have a water flow passage 321, as shown in fig. 6, the water flow passage 321 in the valve core 320 may be an axial groove provided on the outer edge of the valve core 320, and in an embodiment not shown, the valve core may be modified, for example, the valve core 320 may be a cylinder with one end closed, and a through hole communicating with the inside of the cylinder is provided on the side wall of the upper part of the cylinder to form the water flow passage 321; alternatively, the valve core 320 may not directly have a water flow passage, but an axial groove may be provided on an inner wall of the valve core mount 310 at the position of the mounting hole 111 to form the water flow passage. The valve core 320 is movable in the axial direction within the mount water outlet 314, and when the check valve 300 is open, as shown in FIG. 3, water may flow through the mount water outlet 314 via the valve core 320. The valve spool 320 has opposite first and second ends 322, 323. The valve spool 320 passes through the mount water vent 314 such that the first end 322 and the second end 323 are located on either side of the mount water vent 314. The first end 322 faces the platen 400 in use.

In the illustrated embodiment, second end 323 is above and first end 322 is below. The valve cartridge 320 is inserted from below and up with the second end 323 passing through the mount water outlet 314. The second end 323 has a shape that conforms to the top of the mount water spout 314. In this way, the direction of movement of the valve element 320 can be limited to such an extent that the valve element 320 can only move axially in the mount water passage 314. Additionally, as will be discussed later, a seal may be formed between the second end 323 of the valve cartridge 320 and the top of the mount water port 314 to block the check valve 300.

The check valve 300 further includes an elastic member 330 and a third sealing ring 340, wherein the elastic member 330 is sleeved on the valve core 320, and the elastic member 330 is clamped between the water passing opening 314 and the first end 322 of the mounting seat, as shown in fig. 2-4. For example, the first end 322 of the poppet 320 may have a larger radial dimension relative to the other portions, thereby forming a catch 326, as shown in fig. 6. The catches 326 may be annular protrusions continuously provided in the circumferential direction of the valve body 320, or may be protrusions spaced apart in the circumferential direction of the valve body 320. A preferred embodiment will be described below. Illustratively, as shown in FIG. 3, the resilient member 330 is captured between the mount water spout 314 and the first end 322. In this way, the resilient member 330 is retained on the valve cartridge 320 by the mounting seat water passage 314 and the first end 322.

A third seal ring 340 is coupled to the second end 323, the third seal ring 340 having a radial dimension that is greater than a radial dimension of the mount drain 314 such that the valve spool 320 is retained on the mount drain 314. Illustratively, a third seal ring 340 is coupled to the second end 323 of the valve spool 320 above the mount fill port 314. After the valve core 320 is inserted into the mounting seat water outlet 314 from the bottom up, the second end 323 of the valve core 320 passes through the mounting seat water outlet 314. A third seal 340 is coupled to the second end 323 of the valve spool 320. Preferably, the third sealing ring 340 may be sleeved along the second end 323 of the valve core 320, i.e., the third sealing ring 340 is located radially outside the valve core 320. When the check valve 300 is in a stop state, the third sealing ring 340 is located on the radial inner side of the mounting seat water outlet 314, that is, the third sealing ring 340 is clamped in a gap between the valve core 320 and the mounting seat water outlet 314, and plays a role of radial sealing. Like this, radial direction's sealed ability plays better sealed effect, compares in axial seal, can not reduce sealed effect because of hydraulic effect, consequently can effectively reduce the risk of leaking. Of course, the present invention does not exclude an embodiment in which the third sealing ring 340 seals in the axial direction, and in this embodiment, the third sealing ring 340 may be installed on the end surface of the second end 323 of the valve spool 320.

The valve core 320 has a stop position and a conducting position, the valve core 320 is changed from the stop position to the conducting position in the process of installing the filter element assembly on the filter base, the check valve 300 is changed from the stop state to the conducting state, the elastic member 330 is compressed, the elastic member 330 stores elastic potential energy in the compression process, the third sealing ring 340 moves upwards along with the valve core 320, so that the third sealing ring 340 is spaced from the mounting base water passing port 314, water enters the mounting base water passing port 314 through the water flow channel 321 of the valve core 320 (or the water flow channel of the valve core mounting base 310) to achieve conduction of the water flow, as shown in fig. 3, the check valve 300 is in the conducting state at this time.

In the process of removing the filter element assembly from the filter base, the check valve 300 is changed from the on state to the off state, the elastic member 330 releases the elastic potential energy to push the first end 322 of the valve element 320, so that the valve element 320 moves downward until the third sealing ring 340 seals the mounting base water gap 314, the valve element 320 is changed from the on position to the off position, as shown in fig. 2, the check valve in the middle position is in the off state.

Like this, at the in-process of installation check valve 300, assemble check valve 300 earlier, the process of assembling check valve 300 is: sleeving the elastic element 330 on the valve core 320, penetrating the valve core 320 with the elastic element 330 through the installation seat water passing port 314 of the valve core installation seat 310, compressing the elastic element 330 through external force to expose the second end 323 of the valve core 320 out of the top of the installation seat water passing port 314, and connecting the third sealing ring 340 to the second end 323 of the valve core 320; the assembled check valve 300 is then inserted into the mounting hole 111 of the filter flask 100. The third sealing ring 340 arranged on the valve core 320 has two functions, one is that when the check valve 300 is in a cut-off state, the third sealing ring has a sealing function on the valve core 320 and the mounting seat water passing hole 314; the other is that after the third sealing ring 340 is installed, the elastic member 330 can be clamped between the mount water passing hole 314 and the first end 322 of the valve core 320, and the valve core 320 is kept in the mount water passing hole 314. That is to say, the installation of the check valve 300 does not depend on the subsequent installation steps, so that after the check valve 300 is installed, whether the check valve 300 can work normally can be checked, the installation is ensured to be in place, and further, the influence on the product quality due to the water leakage problem in the use process is avoided. In addition, the check valve 300 is connected with the end part 110 of the filter flask through the valve core mounting seat 310, and the valve core mounting seat 310 can be formed by injection molding through a mold, so that the size is easy to control, and the water leakage risk caused by poor mounting and matching can be reduced.

Preferably, the radial dimension of the second end 323 is smaller than that of the mounting seat water outlet 314, an annular groove (not labeled in the figure) is formed on the outer peripheral wall of the second end 323, and the third sealing ring 340 is clamped in the annular groove. Thus, when being installed, the valve core 320 can not only smoothly pass through the installation seat water passing port 314 of the valve core installation seat 310, but also play a good role in sealing, and effectively reduce the risk of water leakage.

Preferably, the elastic member 330 is in a normal state when the spool 320 is in the off position. Illustratively, the elastic member 330 may be a compression spring. As shown in fig. 5, the check valves 330, 330' at the left and middle positions are in the on state, and the check valve 330 ″ at the right position is in the off state. At this moment, the elastic member of the check valve 300 "is in a normal state, so that when the check valve 300" can be ensured to be stopped, the third sealing ring is tightly attached to the water passing opening of the mounting seat, and the sealing effect is ensured.

In a preferred embodiment, as shown in FIG. 6, the cartridge 320 includes a body 324 and an end cap 325. The main body 324 extends from the first end 322 to the second end 323 of the valve core 320, and the elastic member 330 is disposed on the main body 324. An end cap 325 is connected to the body 324 at the first end 322, the end cap 325 having a radial dimension greater than the radial dimension of the body and also greater than the radial dimension of the mount water outlet 314 to retain the resilient member 330. Thus, with the structure of the main body 324 and the end cap 325, and the radial dimension of the end cap 325 is larger than the radial dimension of the main body 324 and the radial dimension of the mount water outlet 314, the retainer 326 is formed on the valve core 320, and the separate arrangement of the retainer 326 on the valve core 320 is reduced, so that the structure of the valve core 320 is simple. Additionally, the end cap 325 faces the filter base when the cartridge assembly is mounted to the filter base and pushes against the one-way valve in the filter base to clear the water path. Because the end cap 325 is sized larger, the contact surface is larger when interacting with the check valve in the filter seat, so that the valve core 320 is not easy to skew when pushed, and the problem that the valve core 320 cannot be stopped when returning to the initial position is avoided. Third, the end cap 325 has a high mechanical strength due to its large size, thereby preventing the risk of fracture due to long-term use and increasing the service life of the check valve 300.

Illustratively, the body 324 of the poppet 320 may be cross-shaped in cross-section and/or the end cap 325 may be annular, with the end cap 325 being coupled to the body 324 radially outward of the body 324. As shown in fig. 3, 4 and 6, when the check valve 300 is in the on state, water can flow into the valve core 320 through the gap between the third sealing ring 340 and the mounting seat water outlet 314. And because the end cap 325 of the valve cartridge 320 is annular, it communicates with the cross-shaped structure of the body 324, thereby forming the water flow passage 321. The annular periphery may be used to form a circumferentially continuous catch 326. Therefore, the cross structure can increase the structural strength of the valve core 320 and prolong the service life of the valve core 320, and can also increase the water flow of the valve core 320, so that the water flow is maximized and the user experience is improved without changing the overall volume. In addition, the end cap 325 is annular, so that the acting force of the elastic member 330 on the valve core 320 is uniformly distributed, and when the valve core 320 is pushed, the valve core 320 is not clamped due to inclination, and the effect of stopping water flow cannot be achieved.

According to another aspect of the invention, a water purifier is also provided. The water purifier comprises any one of the filter element assemblies shown above. For the components contained in the filter element assembly, reference may be made to the above description, and for the sake of brevity, further description is omitted here.

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

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

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

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

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

Claims

1. The filter element component is characterized by comprising a filter bottle (100), a check valve (300) and a pressure plate (400),

the check valve comprises a valve core mounting seat (310);

an installation hole (111) is formed in the end portion (110) of the filter bottle, and the valve core installation seat is inserted into the installation hole;

the pressure plate is connected to the end face of the end of the filter bottle, and the end face of the valve core mounting seat (310) abuts against the pressure plate (400).

2. The filter element assembly according to claim 1, wherein the cartridge mount (310) has a through hole (319) for mounting a cartridge, the pressure plate (400, 400 ') is provided with a pressure plate drainage port (410, 410') coaxial with the through hole, the filter element assembly further comprising a first sealing ring (420) clamped between the cartridge mount and the pressure plate, at least a portion of the first sealing ring being embedded in the through hole and/or a sidewall of the pressure plate drainage port.

3. The filter element assembly according to claim 2, wherein the through hole (319) in the cartridge mount (310) is a stepped hole (311) having a step (318) dividing the stepped hole into a large-sized section (312) and a small-sized section (313), wherein the large-sized section has an inner diameter larger than an inner diameter of the small-sized section, the large-sized section faces the platen (400) and extends to the end face of the cartridge mount, the large-sized section has an inner diameter larger than an inner diameter of the platen drain opening (410), and at least a portion of the first seal ring (420) is embedded in the large-sized section and clamped between the step and the platen.

4. The filter element assembly according to claim 3, wherein the inner diameter of the first sealing ring (420) is smaller than the inner diameter of the platen water gap (410) and smaller than the inner diameter of the small-sized section (313).

5. The filter element assembly according to claim 2, wherein the platen drain opening (410 ') is a stepped bore having a step (411 ') dividing the stepped bore into a large dimension section (412 ') and a small dimension section (413 '), wherein the large dimension section has an inner diameter greater than the inner diameter of the small dimension section, the large dimension section faces the cartridge mount (310) and extends to a surface of the platen (400 '), the end surface of the cartridge mount abuts against the surface, and at least a portion of the first seal ring (420) is embedded in the large dimension section and clamped between the step and the cartridge mount.

6. The filter element assembly according to claim 5, wherein the inner diameter of the first sealing ring (420) is smaller than the inner diameter of the small-sized section (413') and smaller than the inner diameter of the through hole (319).

7. The filter element assembly according to claim 5, wherein the large dimension section (412') has an inner diameter larger than the inner diameter of the through hole (319) and smaller than the outer diameter of the cartridge mount (310).

8. The filter element assembly according to claim 1, wherein the number of the mounting holes (111) is plural, the number of the check valves (300) is plural, the plurality of the check valves correspond to the plurality of the mounting holes one by one, respectively, and the pressing plate (400) is an integral piece.

9. The filter cartridge assembly according to claim 1, further comprising a second sealing ring (350) fitted over the cartridge mount (310), the second sealing ring being clamped between the cartridge mount and an inner wall of the mounting bore (111).

10. The filter element assembly according to claim 1, wherein the cartridge mount has a through bore, the non-return valve further comprising a cartridge mounted to the through bore, the through bore having a mount drain (314) at an end remote from the pressure plate (400), the mount drain having an inner diameter smaller than an inner diameter of other portions of the through bore,

a valve spool (320) having opposing first (322) and second (323) ends, the valve spool passing through the mount drain opening (314) such that the first and second ends are located on either side of the mount drain opening, respectively, the first end facing the pressure plate,

the check valve (300) further comprises an elastic member (330) and a third sealing ring (340), wherein

The elastic piece is sleeved on the valve core and clamped between the water outlet of the mounting seat and the first end;

the third sealing ring is connected to the second end, the outer diameter of the third sealing ring is larger than the inner diameter of the mounting seat water passing opening, so that the valve core is kept on the mounting seat water passing opening,

the valve core is provided with a cut-off position and a conducting position, and in the cut-off position, the third sealing ring is clamped between the water passing port of the mounting seat and the second end; in the on position, the third seal ring is disposed spaced apart from the second end.

11. A water purification machine comprising a filter element assembly according to any one of claims 1 to 10.