Filter element mounting structure and water purifying device

Abstract

The utility model belongs to the technical field of water purification, and provides a filter element mounting structure and a water purifying device.The filter element mounting structure comprises a filter element base, a water inlet channel and a water outlet channel are formed in the filter element base; the filter element assembly comprises a filter element and an end cover, the end cover is arranged at the end of the filter element, the filter element is detachably installed on the filter element seat through the end cover, a connecting pipe is arranged on the end cover and comprises a water inlet hole and a water outlet hole, and the water inlet hole surrounds the periphery of the water outlet hole; the water stopping assembly is arranged on the water inlet channel, and the water stopping assembly can move between a first position and a second position so as to open or close the water inlet channel; when the filter element assembly is installed on the filter element base, the connecting pipe extends into the filter element base for connection, the end of the connecting pipe makes contact with the water stop assembly and pushes the water stop assembly to the first position, the water inlet channel is communicated with the water inlet hole, the water outlet channel is communicated with the water outlet hole, and when the filter element assembly is detached from the filter element base, the connecting pipe retreats from the filter element base; the water stopping assembly is reset to the second position so as to close the water inlet channel; the water stop assembly is arranged on the water inlet channel of the filter element seat, so that filter element installation in a non-central-hole water inlet mode can be met.

Description

Technical Field

[0001] This application relates to the field of water purification technology, and in particular to a filter cartridge installation structure and a water purification device. Background Technology

[0002] Water purifiers, also known as water purification machines or water quality purifiers, are water treatment devices that perform deep filtration and purification of water according to usage requirements. The filter element, as the core component of a water purifier, is usually mounted on a filter base. Since the filter element has a limited lifespan, it needs to be replaced regularly. When replacing the filter element in existing water purifiers, the water-stopping structure of the filter base is usually set on the central hole of the filter base. This structure is only suitable for filter elements that enter water through the central hole and cannot be adapted to other filter elements on the market that enter water through a non-central hole. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this application is to provide a filter cartridge installation structure and a water purification device to solve the problem that the filter cartridge installation structure in the prior art cannot be adapted to filter cartridges with non-center hole water inlet methods.

[0004] To achieve the above and other related objectives, this application provides a filter element mounting structure, comprising:

[0005] Filter cartridge holder, wherein the filter cartridge holder is provided with an inlet channel and an outlet channel;

[0006] A filter element assembly, comprising a filter element and an end cap, the end cap being disposed at the end of the filter element, the filter element being detachably mounted on a filter element holder via the end cap, the end cap being provided with a connecting pipe, the connecting pipe including an inlet hole and an outlet hole, the inlet hole surrounding the outlet hole circumferentially;

[0007] A water-stopping component is disposed on the water inlet channel, and the water-stopping component is movable between a first position and a second position to open or close the water inlet channel;

[0008] When the filter element assembly is installed in the filter element holder, the connecting pipe extends into the filter element holder for connection. The end of the connecting pipe contacts the water-stopping component and pushes the water-stopping component to the first position. The water inlet channel communicates with the water inlet hole, and the water outlet channel communicates with the water outlet hole. When the filter element assembly is removed from the filter element holder, the connecting pipe exits the filter element holder, and the water-stopping component resets to the second position to close the water inlet channel.

[0009] Optionally, the water-stopping assembly includes a water-stopping valve, an elastic element, and a valve plug. The valve plug is disposed on the filter element seat, and the water-stopping valve is connected to the valve plug through the elastic element. When the filter element assembly is installed on the filter element seat, the connecting pipe extends into the filter element seat, and the end of the connecting pipe abuts against the water-stopping valve, pushing the water-stopping valve to a first position to open the water inlet channel. The water-stopping valve presses against the elastic element. When the filter element assembly is disassembled from the filter element seat, the connecting pipe exits the filter element seat, and the water-stopping valve is reset to a second position by the action of the elastic element to close the water inlet channel.

[0010] Optionally, a first sealing ring is fitted onto the stop valve. When the filter element assembly is removed from the filter element seat, the stop valve is reset to the second position, and the first sealing ring is in contact with the inner wall of the water inlet channel to close the water inlet channel.

[0011] Optionally, a second sealing ring is provided on the outer wall of the connecting pipe. When the filter element assembly is installed in the filter element seat, the connecting pipe extends into the filter element seat, and the second sealing ring is in close contact with the inner wall of the water inlet channel to perform a seal.

[0012] Optionally, the end cap further includes a cover body connected to the connecting pipe. The cover body has a columnar structure, and a snap-fit ​​portion is provided on the outer side wall of the cover body. A snap-fit ​​member that mates with the snap-fit ​​portion is provided on the inner side wall of the filter element seat. The end cap is connected to the filter element seat by the mate between the snap-fit ​​portion and the snap-fit ​​member.

[0013] Optionally, the snap-fit ​​part is an arc-shaped slide rail, the head of the arc-shaped slide rail has a downward cut, the cut is an acute angle, and the cut of the arc-shaped slide rail transitions to the waist of the arc-shaped slide rail with a rounded corner.

[0014] Optionally, a limiting post may be formed on the outer side wall of the cover between the snap-fit ​​portions.

[0015] Optionally, the water outlet channel includes a horizontal section and a vertical section, the vertical section of the water outlet channel is arranged coaxially with the water outlet hole, and a limit rib is provided on the outer side wall of the vertical section of the water outlet channel.

[0016] Optionally, multiple limiting ribs are provided, and the multiple limiting ribs are distributed circumferentially along the outer side wall of the vertical section of the water outlet channel.

[0017] Based on the same inventive concept, this application also provides a water purification device, including the filter cartridge installation structure as described above.

[0018] In the filter element installation structure provided in this application, the filter element is detachably installed on the filter element seat via the end cap. For filter elements with non-center hole water inlet, the water-stop component is located on the water inlet channel. During installation, the water-stop component is pushed to the first position through the connecting pipe of the end cap to open the water inlet channel and connect it with the water inlet hole, thus completing the installation of the filter element. During disassembly, the connecting pipe exits the filter element seat and no longer pushes the water-stop component. The water-stop component returns to the second position, closing the water inlet channel. After disassembly, no water will flow out from the water inlet channel, thus ensuring the normal progress of the disassembly and assembly process. By setting the water-stop component on the water inlet channel of the filter element seat, the installation of filter elements with non-center hole water inlet can be satisfied. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the filter element mounting structure shown in Embodiment 1 of this application;

[0020] Figure 2 This is a schematic diagram of the filter element and filter element holder during disassembly, as shown in Embodiment 1 of this application;

[0021] Figure 3 This is a schematic diagram of the filter element and filter element holder during installation, as shown in Embodiment 1 of this application;

[0022] Figure 4 This is a first-view structural schematic diagram of the filter element assembly shown in Embodiment 1 of this application;

[0023] Figure 5 This is a schematic diagram of the filter element assembly from a second perspective, as shown in Embodiment 1 of this application.

[0024] Figure 6 This is a schematic diagram of the filter element holder shown in Embodiment 1 of this application.

[0025] Part Number Explanation

[0026] 1-Filter element holder; 2-Filter element; 3-End cap; 4-Inlet channel; 5-Outlet channel; 6-Inlet hole; 7-Outlet hole; 8-Connecting pipe; 9-Valve plug; 10-Elastic element; 11-Stop valve; 12-First sealing ring; 13-Second sealing ring; 14-First outlet channel; 15-Second outlet channel; 16-Cover body; 17-Arc-shaped slide rail; 18-Limiting post; 19-Slit; 20-Snap-fit ​​component; 21-Limiting rib. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0028] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of this application, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms such as "front," "back," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application.

[0029] Please see Figures 1 to 6 This application provides an exemplary filter element mounting structure, comprising:

[0030] Filter element holder 1, which is provided with an inlet channel 4 and an outlet channel 5;

[0031] The filter element assembly includes a filter element 2 and an end cap 3. The end cap 3 is disposed at the end of the filter element 2. The filter element 2 is detachably mounted on the filter element seat 1 through the end cap 3. A connecting pipe 8 is provided on the end cap 3. The connecting pipe 8 includes a water inlet 6 and a water outlet 7. The water inlet 6 surrounds the water outlet 7 in the circumference.

[0032] A water-stopping component is installed on the water inlet channel 4. The water-stopping component can move between a first position and a second position to open or close the water inlet channel 4.

[0033] When the filter element assembly is installed in the filter element holder 1, the connecting pipe 8 extends into the filter element holder 1 for connection. The end of the connecting pipe 8 contacts the water-stopping component and pushes the water-stopping component to the first position. The water inlet channel 4 is connected to the water inlet hole 6, and the water outlet channel 5 is connected to the water outlet hole 7. When the filter element assembly is removed from the filter element holder 1, the connecting pipe 8 exits the filter element holder 1, and the water-stopping component resets to the second position to close the water inlet channel 4.

[0034] It should be noted that in related technologies, a water-stop structure needs to be installed on the filter cartridge holder for easy replacement. This water-stop structure allows for self-locking of water without shutting off the water valve during filter cartridge removal, thus improving the efficiency of filter cartridge assembly and disassembly. For filter cartridges with water inlet through the center hole, to achieve self-locking during removal, not only must the water-stop structure be placed in the center hole of the filter cartridge holder, but a separate water-stop component corresponding to the position of the filter cartridge holder's water-stop structure is also required on the filter cartridge as an opening mechanism. This places higher demands on the manufacturing of filter cartridge components, and currently, filter cartridges with non-center hole water inlet methods are gradually increasing in the market. Examples of filter cartridges include RO filters (side-hole inlet, center outlet) and composite filters (side-hole inlet). These types of filters cannot be installed on existing filter cartridge holders. The filter cartridge installation structure of this application places the water-stop component on the water inlet channel of the filter cartridge holder, off-center from the center of the holder. This allows for the installation of filter cartridges with side-hole inlets. Furthermore, the water-stop component can be opened simply by pushing it with the end cap. No additional opening structure is required on the filter cartridge. This optimization of the filter cartridge component features reduces the defect rate during the filter cartridge manufacturing process.

[0035] In the filter element installation structure provided in this application, the filter element 2 is detachably installed on the filter element seat 1 via the end cap 3. For the filter element 2 with a non-center hole water inlet, the water-stop component is located on the water inlet channel 4. During installation, the water-stop component is pushed to the first position through the connecting pipe 8 of the end cap 3 to open the water inlet channel 4 and connect the water inlet channel 4 with the water inlet hole 6, thus completing the installation of the filter element 2. During disassembly, the connecting pipe 8 exits the filter element seat 1 and no longer pushes the water-stop component. The water-stop component returns to the second position, closing the water inlet channel 4. After disassembly, no water will flow out from the water inlet channel 4, thus ensuring the normal progress of the disassembly and assembly process. By setting the water-stop component on the water inlet channel 4 of the filter element seat 1, the installation of the filter element 2 with a non-center hole water inlet can be satisfied.

[0036] In this embodiment, the water-stopping assembly includes a water-stopping valve 11, an elastic element 10, and a valve plug 9. The valve plug 9 is disposed on the filter element seat 1, and the water-stopping valve 11 is connected to the valve plug 9 through the elastic element 10. When the filter element assembly is installed in the filter element seat 1, the connecting pipe 8 extends into the filter element seat 1, and the end of the connecting pipe 8 abuts against the water-stopping valve 11, pushing the water-stopping valve 11 to the first position to open the water inlet channel 4. The water-stopping valve 11 presses against the elastic element 10. When the filter element assembly is disassembled from the filter element seat 1, the connecting pipe 8... When the filter element seat 1 is removed, the stop valve 11 is reset to the second position by the action of the elastic element 10 to close the water inlet channel 4. Specifically, when the stop valve 11 is pushed by the connecting pipe 8 to abut against the valve plug 9, the stop valve 11 is in the first position. When the connecting pipe 8 is removed from the filter element seat 1, the stop valve 11 is reset to the initial position by the action of the elastic element 10, and the stop valve 11 is in the second position. The elastic element 10 can be a telescopic spring, which is not limited here.

[0037] In the above embodiment, a first sealing ring 12 is fitted on the water stop valve 11. When the filter element assembly is removed from the filter element seat 1, the water stop valve 11 is reset to the second position, and the first sealing ring 12 is in close contact with the inner wall of the water inlet channel 4 to close the water inlet channel 4. Specifically, the water stop valve 11 is at least partially blocked at the position of the water inlet channel 4 near the water outlet side. The size of the water stop valve 11 matches the size of the water inlet channel 4. The first sealing ring 12 of the water stop valve 11 is tightly fitted with the inner wall of the water inlet channel 4 to seal the water inlet channel 4, thereby preventing water from flowing from the water inlet channel 4 into the water inlet hole 6.

[0038] In this embodiment, a second sealing ring 13 is fitted on the outer wall of the connecting pipe 8. When the filter element assembly is installed in the filter element seat 1, the connecting pipe 8 extends into the filter element seat 1, and the second sealing ring 13 comes into contact with the inner wall of the water inlet channel 4 to seal it. Specifically, when the connecting pipe 8 extends into the filter element seat 1, the water inlet hole 6 communicates with the water inlet channel 4, and the connecting pipe 8 is tightly fitted with the inner wall of the water inlet channel 4 through the second sealing ring 13 to seal it, ensuring that no water leakage occurs during the water intake process.

[0039] In some embodiments, the end cap 3 further includes a cover body 16 connected to the connecting pipe 8. The cover body 16 has a columnar structure, and a snap-fit ​​part is provided on the outer side wall of the cover body 16. A snap-fit ​​member 20 that cooperates with the snap-fit ​​part is provided on the inner side wall of the filter element seat 1. The end cap 3 is connected to the filter element seat 1 by the cooperation of the snap-fit ​​part and the snap-fit ​​member 20. When the filter element 2 is installed in the filter element seat 1, the connecting pipe 8 extends into the filter element seat 1, and the cover body 16 is rotated to make the snap-fit ​​part cooperate with the snap-fit ​​member 20 to connect the end cap 3 to the filter element seat 1, thereby installing the filter element 2 on the filter element seat 1.

[0040] In detail, the snap-fit ​​part is an arc-shaped slide rail 17. The head of the arc-shaped slide rail 17 has a downward-facing cut 19. The cut 19 is an acute angle. The cut 19 of the arc-shaped slide rail 17 transitions to the waist of the arc-shaped slide rail 17 with a rounded corner. The snap-fit ​​part 20 matches the arc-shaped slide rail 17. When the cover 16 is rotated, the cut 19 of the snap-fit ​​part first enters the snap-fit ​​part 20 for guidance, which facilitates the assembly of the end cover 3 and the filter element seat 1.

[0041] In the above embodiment, a limiting post 18 is formed on the outer side wall of the cover 16 between the snap-fit ​​parts. When installing the filter element 2, the limiting post 18 reduces the installation gap between the cover 16 and the filter element seat 1, avoids incorrect installation direction, and facilitates installation operation.

[0042] In some embodiments, the water outlet channel 5 includes a horizontal section and a vertical section. The vertical section of the water outlet channel 5 is arranged coaxially with the water outlet hole 7. A limiting rib 21 is provided on the outer side wall of the vertical section of the water outlet channel 5. Further, multiple limiting ribs 21 are provided, and the multiple limiting ribs 21 are distributed circumferentially along the outer side wall of the vertical section of the water outlet channel 5. The limiting ribs 21 can reduce the gap between the water outlet hole 7 and the vertical section of the water outlet channel 5 when the filter element 2 is installed, avoid incorrect installation direction, and facilitate installation operation.

[0043] It is understandable that water purification devices usually install multiple different types of filter cartridges at the same time. In this embodiment, filter cartridge 2 is an RO filter cartridge. The RO filter cartridge needs to discharge the wastewater produced by filtration. The vertical section of the water outlet channel 5 includes a first water outlet channel 14 and a second water outlet channel 15. The first water outlet channel 14 is used to transport the filtered pure water, and the second water outlet channel 15 is used to transport the filtered wastewater. For non-RO filter cartridges, there is no need to discharge the wastewater produced by filtration. The vertical section of the water outlet channel 5 does not need to be set with two channels. It is directly connected to the water outlet hole 7, so as to transport the water filtered by the filter cartridge.

[0044] In another embodiment, this application also provides a water purification device, including the filter cartridge mounting structure described above.

[0045] In summary, in the filter element installation structure provided in this application, the filter element 2 is detachably installed on the filter element seat 1 via the end cap 3. For the filter element 2 with a non-central hole water inlet, the water-stop component is located on the water inlet channel 4. During installation, the water-stop component is pushed to the first position through the connecting pipe 8 of the end cap 3 to open the water inlet channel 4, so that the water inlet channel 4 is connected to the water inlet hole 6, thus completing the installation of the filter element 2. During disassembly, the connecting pipe 8 exits the filter element seat 1, and the connecting pipe 8 no longer pushes the water-stop component. The water-stop component returns to the second position, closing the water inlet channel 4. After disassembly, no water will flow out from the water inlet channel 4, thus ensuring the normal progress of the disassembly and assembly process. By setting the water-stop component on the water inlet channel 4 of the filter element seat 1, the installation of the filter element 2 with a non-central hole water inlet can be satisfied.

[0046] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A filter element mounting structure, characterized in that, include: Filter cartridge holder, wherein the filter cartridge holder is provided with an inlet channel and an outlet channel; A filter element assembly, comprising a filter element and an end cap, the end cap being disposed at the end of the filter element, the filter element being detachably mounted on a filter element holder via the end cap, the end cap being provided with a connecting pipe, the connecting pipe including an inlet hole and an outlet hole, the inlet hole surrounding the outlet hole circumferentially; A water-stopping component is disposed on the water inlet channel, and the water-stopping component is movable between a first position and a second position to open or close the water inlet channel; When the filter element assembly is installed in the filter element holder, the connecting pipe extends into the filter element holder for connection. The end of the connecting pipe contacts the water-stopping component and pushes the water-stopping component to the first position. The water inlet channel communicates with the water inlet hole, and the water outlet channel communicates with the water outlet hole. When the filter element assembly is removed from the filter element holder, the connecting pipe exits the filter element holder, and the water-stopping component resets to the second position to close the water inlet channel.

2. The filter element mounting structure according to claim 1, characterized in that, The water-stopping assembly includes a water-stopping valve, an elastic element, and a valve plug. The valve plug is disposed on the filter element seat, and the water-stopping valve is connected to the valve plug through the elastic element. When the filter element assembly is installed on the filter element seat, the connecting pipe extends into the filter element seat, and the end of the connecting pipe abuts against the water-stopping valve, pushing the water-stopping valve to a first position to open the water inlet channel. The water-stopping valve presses against the elastic element. When the filter element assembly is removed from the filter element seat, the connecting pipe exits the filter element seat, and the water-stopping valve is reset to a second position by the action of the elastic element to close the water inlet channel.

3. The filter element mounting structure according to claim 2, characterized in that, The stop valve is fitted with a first sealing ring. When the filter element assembly is removed from the filter element seat, the stop valve is reset to the second position, and the first sealing ring is in contact with the inner wall of the water inlet channel to close the water inlet channel.

4. The filter element mounting structure according to claim 1, characterized in that, The outer wall of the connecting pipe is fitted with a second sealing ring. When the filter element assembly is installed in the filter element seat, the connecting pipe extends into the filter element seat, and the second sealing ring comes into contact with the inner wall of the water inlet channel to seal it.

5. The filter element mounting structure according to claim 1, characterized in that, The end cap also includes a cover body connected to the connecting pipe. The cover body has a columnar structure. A snap-fit ​​part is provided on the outer side wall of the cover body. A snap-fit ​​member is provided on the inner side wall of the filter element seat to cooperate with the snap-fit ​​part. The end cap is connected to the filter element seat by the cooperation between the snap-fit ​​part and the snap-fit ​​member.

6. The filter element mounting structure according to claim 5, characterized in that, The locking part is an arc-shaped slide rail. The head of the arc-shaped slide rail has a downward-facing cut, which is an acute angle. The cut of the arc-shaped slide rail transitions to the waist of the arc-shaped slide rail with a rounded corner.

7. The filter element mounting structure according to claim 5, characterized in that, On the outer wall of the cover, a limiting post protrudes outward between the snap-fit ​​parts to form a limiting post.

8. The filter element mounting structure according to claim 1, characterized in that, The water outlet channel includes a horizontal section and a vertical section. The vertical section of the water outlet channel is arranged coaxially with the water outlet hole, and a limit rib is provided on the outer side wall of the vertical section of the water outlet channel.

9. The filter element mounting structure according to claim 8, characterized in that, Multiple limiting ribs are provided, and the multiple limiting ribs are distributed circumferentially along the outer side wall of the vertical section of the water outlet channel.

10. A water purification device, characterized in that, Includes the filter element mounting structure as described in any one of claims 1-9.

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