Water purifier with filter element convenient to replace
By combining a hydraulic lifting rod and a positioning protrusion with a positioning hole and groove, the design solves the problem of time-consuming and laborious replacement of water purifier filter cartridges, enabling quick disassembly and replacement of filter cartridges, and making the operation simple and labor-saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-03-13
AI Technical Summary
Replacing the filter cartridges in existing water purifiers is time-consuming and laborious, and the structure needs improvement.
The design employs a hydraulic lifting rod and positioning protrusions in conjunction with positioning holes and positioning grooves. The filter element can be quickly disassembled and installed via a sliding connecting sleeve and elastic plate, eliminating the need for tools.
It enables quick disassembly and replacement of the filter element, is simple and labor-saving to operate, requires no additional tools, and improves replacement efficiency.
Smart Images

Figure CN223988201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purifiers, and in particular to a water purifier with easy filter replacement. Background Technology
[0002] An existing patent (publication number: CN114159871B) proposes a water purifier with an easy-to-replace filter cartridge, including a base, an inlet pipe, and a hollow column. The hollow column is fixedly connected to the middle of the base. The inlet pipe is installed on the lower inner side of the hollow column through a connecting plate. The outlet pipe is installed on the upper inner side of the hollow column through a connecting plate. Corrugated pipes are evenly spaced along the circumference of the lower part of the outlet pipe and the upper part of the inlet pipe. A shell is fixedly connected to the outer side of the hollow column at even intervals along the circumference. An outer spiral cylinder is rotatably connected to the top and bottom of the shell. The filter cartridge is placed between the upper and lower outer spiral cylinders. A protrusion is fixedly connected to the inner side of the shell near the upper and lower outer spiral cylinders. The protrusion is located in the groove of the outer spiral cylinder. However, the above device is time-consuming and laborious to replace the filter cartridge, and the structure needs to be improved. Summary of the Invention
[0003] This utility model addresses the aforementioned shortcomings of the existing technology by providing a water purifier that is easy to disassemble, replace, operate, and has a simple structure. Furthermore, it eliminates the need for additional tools when replacing the filter element, saving time and effort.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A water purifier with easy filter replacement includes a fixed base, a water purifier housing, and a maintenance door. The fixed base has the water purifier housing on its upper part, and the maintenance door is connected to the outside of the water purifier housing. The fixed base also has a water tank fixing seat on its upper part, located outside the water purifier housing. A hydraulic lifting rod is connected to the inside of the water purifier housing, and the other end of the hydraulic lifting rod is connected to a filter element fastening sleeve. The filter element is connected to the inside of the filter element fastening sleeve and slides within the filter element fastening sleeve. The filter element has a first filter element connecting pipe on its upper part and a second filter element connecting pipe on its lower part. The second filter element connecting pipe is symmetrically arranged with the first filter element connecting pipe. A first fastening connecting sleeve is connected to the outside of the first filter element connecting pipe and slides on the first filter element connecting pipe.
[0006] The first fastening connecting sleeve of this utility model has two positioning holes inside, which are symmetrically arranged. The first filter element connecting tube has two positioning grooves inside, which are symmetrically arranged. A "U"-shaped elastic plate is connected to the inside of the positioning groove, and the "U"-shaped elastic plate slides in the positioning groove.
[0007] The U-shaped elastic plate of this utility model has a positioning protrusion on the outside. The positioning protrusion passes through the No. 1 filter element connecting pipe and connects to the positioning insertion hole. The positioning protrusion slides inside the No. 1 filter element connecting pipe and slides inside the positioning insertion hole. The inner side of the No. 1 filter element connecting pipe is connected to the purified water faucet.
[0008] The lower part of the water purifier faucet of this utility model is connected to a No. 1 fastening connecting sleeve, which slides on the water purifier faucet. The outer side of the water purifier faucet is connected to the water purifier housing. The lower part of the water purifier faucet passes through the water purifier housing and the No. 1 fastening connecting sleeve in sequence, connecting to the No. 1 filter element connecting pipe. The inner side of the No. 2 filter element connecting pipe is connected to the inlet pipe. The outer side of the No. 2 filter element connecting pipe is connected to the No. 2 fastening connecting sleeve, which slides on the No. 2 filter element connecting pipe. The inner side of the No. 2 fastening connecting sleeve is connected to the inlet pipe, which slides on the inlet pipe. The outer side of the inlet pipe is connected to the water purifier housing. One end of the inlet pipe passes through the water purifier housing and the No. 2 fastening connecting sleeve in sequence, connecting to the No. 2 filter element connecting pipe. The upper part of the water purifier housing is connected to a water tank. The lower part of the water tank is connected to a drain pipe. The outer side of the drain pipe is connected to the water purifier housing. The lower part of the drain pipe is connected to a recycling water tank. The lower part of the recycling water tank is connected to a water tank fixing base. Beneficial effects
[0009] This utility model allows you to replace the filter element by pressing the positioning protrusion inward and moving the No. 1 fastening connecting sleeve, the water faucet, the No. 2 fastening connecting sleeve, and the water inlet pipe to both ends of the filter element. It is convenient to replace, easy to operate, quick to disassemble, and has a simple structure. Moreover, no other tools are needed to replace the filter element, saving time and effort. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of a water purifier structure that facilitates filter element disassembly, as described in this utility model.
[0011] Figure 2 This is a schematic diagram of a water purifier fixing base structure that facilitates filter element disassembly, as described in this utility model.
[0012] Figure 3 This is a cross-sectional view of a water purifier fixing base structure that facilitates filter element disassembly, as described in this utility model.
[0013] Figure 4 This is a schematic diagram of the combined structure of a water purifier faucet, filter element, and inlet pipe for easy-to-disassemble water purifier according to the present invention.
[0014] Figure 5 This is a cross-sectional view of the combined structure of a water purifier faucet, filter element, and inlet pipe that facilitates filter element disassembly, as described in this utility model.
[0015] Figure 6This is a schematic diagram of the combined structure of a water purifier's water recovery tank, water trough, and drain pipe, which facilitates the disassembly of the filter element, as described in this utility model.
[0016] Figure 7 This is a cross-sectional view of a water purifier structure that facilitates filter element disassembly, as described in this utility model. Detailed Implementation
[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[0018] Example 1:
[0019] A water purifier with easily removable filter cartridges includes a fixed base 01, a water purifier housing 02, and a maintenance door 03. The fixed base 01 has the water purifier housing 02 on its upper part, and the maintenance door 03 is connected to the outside of the water purifier housing 02. The fixed base 01 also has a water tank fixing seat 08 on its upper part, located outside the water purifier housing 02. A hydraulic lifting rod 10 is connected to the inside of the water purifier housing 02, and the other end of the hydraulic lifting rod 10 is connected to a filter cartridge fastening sleeve 09. A filter cartridge 11 is connected to the inside of the filter cartridge fastening sleeve 09, and the filter cartridge 11 slides within the filter cartridge fastening sleeve 09. The filter cartridge 11 has a first filter cartridge connecting pipe 15 on its upper part and a second filter cartridge connecting pipe 18 on its lower part. The second filter cartridge connecting pipe 18 is symmetrically arranged with the first filter cartridge connecting pipe 15. A first fastening connecting sleeve 13 is connected to the outside of the first filter cartridge connecting pipe 15, and the first fastening connecting sleeve 13 slides on the first filter cartridge connecting pipe 15.
[0020] Example 2:
[0021] The first fastening connecting sleeve 13 of this utility model has two positioning holes 17 inside, which are symmetrically arranged. The first filter element connecting tube 15 has two positioning grooves 19 inside, which are symmetrically arranged. The positioning grooves 19 are connected to the inside of the positioning grooves 19, and the "U"-shaped elastic plate 16 slides in the positioning grooves 19.
[0022] Example 3:
[0023] The outer side of the "U"-shaped elastic plate 16 of this utility model has a positioning protrusion 14. The positioning protrusion 14 passes through the No. 1 filter element connecting pipe 15 and connects to the positioning insertion hole 17. The positioning protrusion 14 slides in the No. 1 filter element connecting pipe 15 and the positioning insertion hole 17. The inner side of the No. 1 filter element connecting pipe 15 is connected to the water faucet 04.
[0024] Example 4:
[0025] The lower part of the water purifier faucet 04 of this utility model is connected to a first fastening connecting sleeve 13, which slides on the water purifier faucet 04. The outer side of the water purifier faucet 04 is connected to the water purifier housing 02. The lower part of the water purifier faucet 04 passes through the water purifier housing 02 and the first fastening connecting sleeve 13, connecting to the first filter element connecting pipe 15. The inner side of the second filter element connecting pipe 18 is connected to the inlet pipe 12. The outer side of the second filter element connecting pipe 18 is connected to the second fastening connecting sleeve 20, which slides on the second filter element connecting pipe 18. The inner side of the second fastening connecting sleeve 20 is connected to the inlet pipe 12, which slides on the inlet pipe 12. The outer side of the inlet pipe 12 is connected to the water purifier housing 02. One end of the water pipe 12 passes through the water purifier housing 02 and the second fastening sleeve 20, connecting to the second filter element connecting pipe 18. The upper part of the water purifier housing 02 is connected to the water tank 06, the lower part of the water tank 06 is connected to the drain pipe 07, the outer side of the drain pipe 07 is connected to the water purifier housing 02, the lower part of the drain pipe 07 is connected to the recovery water tank 05, and the lower part of the recovery water tank 05 is connected to the water tank fixing seat 08. Press the positioning protrusion 14 inward to move the first fastening sleeve 13, the purified water faucet 04, the second fastening sleeve 20, and the inlet pipe 12 to both ends of the filter element 11, so that the filter element 11 can be replaced. Replacement is convenient, easy to operate, disassembly is fast, the structure is simple, and no other tools are needed to assist in replacing the filter element 11, saving time and effort.
[0026] Example 5:
[0027] Installation steps: When filter element 11 needs to be disassembled, first open the maintenance door 03, then press the positioning protrusion 14 inward, and move the first fastening connecting sleeve 13 upward to separate the first fastening connecting sleeve 13 from the first filter element connecting pipe 15. Then move the purified water faucet 04 upward to separate the purified water faucet 04 from the first filter element connecting pipe 15. Then, follow the above method to separate the second fastening connecting sleeve 20, the inlet pipe 12 from the second filter element connecting pipe 18. Finally, turn on the switch of the hydraulic lifting rod 10. Extending outwards, the hydraulic lifting rod 10 drives the filter element fastening sleeve 09 and the filter element 11 to extend out of the water purifier housing 02 together, pull out the filter element 11, and then press the new filter element 11 into the filter element fastening sleeve 09. The hydraulic lifting rod 10 drives the filter element fastening sleeve 09 and the new filter element 11 to retract and tighten into the water purifier housing 02. Then, reverse the above method to complete the replacement of the filter element 11. The replacement is convenient, easy to operate, fast to disassemble, and simple in structure. Moreover, no other tools are needed to assist in replacing the filter element 11, saving time and effort.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A water purifier with filter cartridge replacement facilitated, characterized in that : Including fixed base (01), water purifier box (02), maintenance door (03), the fixed base (01) upper part has water purifier box (02), water purifier box (02) outside connects maintenance door (03), fixed base (01) upper part has water tank fixing seat (08), water tank fixing seat (08) is located at the outside of water purifier box (02), the inside of water purifier box (02) is connected with hydraulic lifting rod (10), the other end of hydraulic lifting rod (10) is connected with filter core fastening sleeve (09), the inside of filter core fastening sleeve (09) is connected with filter core (11), filter core (11) slides in filter core fastening sleeve (09), the upper part of filter core (11) has one filter core connecting pipe (15), the lower part of filter core (11) has two filter core connecting pipes (18), two filter core connecting pipes (18) are symmetrically arranged with one filter core connecting pipe (15), one filter core connecting pipe (15) outside connects one fastening connecting sleeve (13), one fastening connecting sleeve (13) slides on one filter core connecting pipe (15).
2. The water purifier with filter cartridge replacement facilitation according to claim 1, characterized in that : The inside of one fastening connecting sleeve (13) has two positioning insertion holes (17), and the two positioning insertion holes (17) are symmetrically arranged, and the inside of one filter core connecting pipe (15) has two positioning grooves (19), and the two positioning grooves (19) are symmetrically arranged, and the inside of positioning groove (19) is connected with "U" type elastic plate (16), and "U" type elastic plate (16) slides in positioning groove (19).
3. The water purifier with filter cartridge replacement facilitation according to claim 2, characterized in that : The outside of "U" type elastic plate (16) has positioning convex (14), and positioning convex (14) passes through one filter core connecting pipe (15) and is connected with positioning insertion hole (17), and positioning convex (14) slides in one filter core connecting pipe (15), and positioning convex (14) slides in positioning insertion hole (17), and the inside of one filter core connecting pipe (15) is connected with water purifying water outlet faucet (04).
4. The water purifier with filter cartridge replacement facilitation according to claim 3, characterized in that The water outlet faucet (04) is connected with a first fastening sleeve (13) at the lower part, the first fastening sleeve (13) slides on the water outlet faucet (04), the water outlet faucet (04) is connected with the water purifier box (02) at the outside, the water outlet faucet (04) passes through the water purifier box (02) and the first fastening sleeve (13) in sequence and is connected with a first filter core connecting pipe (15) at the lower part, a second filter core connecting pipe (18) is connected with the water inlet pipe (12) at the inside, the second filter core connecting pipe (18) is connected with a second fastening sleeve (20) at the outside, the second fastening sleeve (20) slides on the second filter core connecting pipe (18), the second fastening sleeve (20) is connected with the water inlet pipe (12) at the inside, the second fastening sleeve (20) slides on the water inlet pipe (12), the water inlet pipe (12) is connected with the water purifier box (02) at the outside, one end of the water inlet pipe (12) passes through the water purifier box (02) and the second fastening sleeve (20) in sequence and is connected with the second filter core connecting pipe (18), the water purifier box (02) is connected with a water tank (06) at the upper part, the water tank (06) is connected with a drain pipe (07) at the lower part, the drain pipe (07) is connected with the water purifier box (02) at the outside, the drain pipe (07) is connected with a water recycling tank (05) at the lower part, and the water recycling tank (05) is connected with a water tank fixing seat (08) at the lower part.
Citation Information
Patent Citations
A water purifier with easy-to-replace filter cartridges
CN114159871B