Water inlet pipeline filter with replaceable filter element

By designing a water inlet pipe filter with replaceable filter cartridges, the problems of resource waste and operational complexity caused by replacing the entire filter cartridge after it becomes clogged are solved. This achieves rapid replacement of the filter cartridge and stable connection, thus preventing water leakage.

CN223980200UActive Publication Date: 2026-03-10JIANGMEN SOLID WASTE TREATMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The filter elements of existing inlet pipe filters need to be replaced entirely after they become clogged, which leads to resource waste and operational complexity.

Method used

A water inlet pipe filter with replaceable filter cartridges was designed. It adopts a detachable filter cartridge structure. The lower filter cartridge is replaced by unscrewing the lower part of the filter cartridge. Sealing gaskets and pipe disassembly and fastening mechanisms are used to ensure sealing and stability.

Benefits of technology

It enables quick filter replacement, avoids resource waste, simplifies the operation process, ensures connection stability, and prevents water leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filtering, and discloses a water inlet pipeline filter with a replaceable filter element, which is characterized in that a water inlet pipe and a water outlet pipe are respectively connected with an upper-end rotary mounting part of a three-way valve to form a water inlet and outlet channel, and the upper-end rotary mounting part of the three-way valve is connected with the water inlet pipe and the water outlet pipe; the lower end filter element bearing part is in screwed connection with the upper end screwing part of the three-way valve through threads; and the filter element is arranged in the lower end filter element bearing lower part. According to the utility model, the filter element is designed to be detachable, so that a user can replace the filter element by spirally unscrewing the filter element bearing lower part at the lower end, and the filter element is convenient and quick to disassemble and replace; the problem that after a filter element of a traditional filter is blocked, the whole filter needs to be replaced generally, and resource waste is caused is solved; the sealing gasket is made of a rubber material, so that the sealing performance between the upper-end rotary mounting part and the lower-end filter element bearing lower part of the three-way valve is ensured, and the water leakage phenomenon is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the filter field especially relates to a replaceable filter element's water inlet pipeline filter. BACKGROUND

[0002] At present, the water inlet pipeline filter on market mostly adopts fixed filter element design, and the filter element is blocked by impurities after using for a period of time, which leads to the decline of filtering effect. After the filter element is blocked, the traditional filter usually needs to replace the filter as a whole, which not only increases the use cost, but also causes the waste of resources. In addition, when the filter element is replaced, the existing filter is complex to operate, and the dismounting and installation process is cumbersome, which brings inconvenience to the user. Based on this, the utility model provides a replaceable filter element's water inlet pipeline filter. SUMMARY

[0003] In order to solve the technical problem that the filter is complex to operate and inconvenient to dismount when the filter element is replaced, the utility model provides a replaceable filter element's water inlet pipeline filter.

[0004] The utility model adopts the following technical scheme: a replaceable filter element's water inlet pipeline filter, including three way valve upper end screwing portion, water baffle, water inlet pipe, water outlet pipe, lower end filter element bearing lower part, filter element, gasket and pipeline dismounting and fastening mechanism,

[0005] The water inlet pipe and the water outlet pipe are connected with the three way valve upper end screwing portion respectively, and form the inlet and outlet channels of water flow.

[0006] The three way valve upper end screwing portion is connected with the water inlet pipe and the water outlet pipe, and the lower end filter element bearing lower part is connected with the three way valve upper end screwing portion through thread screwing; the inside of the three way valve upper end screwing portion is provided with the water baffle, which vertically separates the three way valve upper end screwing portion, the filter element is arranged in the inside of the lower end filter element bearing lower part, and the three way valve upper end screwing portion is sealedly connected with the lower end filter element bearing lower part through the gasket.

[0007] The pipeline dismounting and fastening mechanism includes first locking part, second locking part, deflection axis, screw connecting part and fixed bolt; the deflection axis is arranged at the connection of the first locking part and the second locking part, the first locking part and the second locking part are deflected around the deflection axis, and the screw connecting part fixes the first locking part and the second locking part through the fixed bolt.

[0008] The outside of the three way valve upper end screwing portion is connected with the water flow interface extending to the outside, the water inlet pipe and the water outlet pipe are connected on the water flow interface, the interface is locked through the pipeline dismounting and fastening mechanism, and the inside of the first locking part and the second locking part on the pipeline dismounting and fastening mechanism is provided with waterproof rubber pad.

[0009] When the filter is working, the water sample enters the upper screw-on part of the three-way valve from the inlet pipe. The water flow is blocked by the baffle plate and then flows from the upper screw-on part of the three-way valve to the middle of the lower part of the filter element. The water sample then passes through the filter element in the middle. During this process, the filter element intercepts large particles, achieving the purpose of filtration. Subsequently, the water sample enters the area around the filter element, overflows upwards and flows to the outlet pipe of the upper screw-on part of the three-way valve, and then enters the later part of the pipeline, flowing to the online monitoring instrument for water sample testing.

[0010] As a further optimization of this utility model, the sealing gasket is O-shaped and made of rubber material to ensure the sealing between the upper screw-on part of the three-way valve and the lower part of the filter element, thus avoiding water leakage.

[0011] As a further optimization of this utility model, the filter element is designed to be detachable, allowing users to replace the filter element by unscrewing the lower filter element support, making it convenient and quick to replace.

[0012] As a further optimization of this utility model, by adjusting the tightness and engagement of the fixing bolts, the first locking part and the second locking part are controlled to deflect around the deflection axis, thereby controlling the tightness of the water inlet pipe and the upper screw-on part of the three-way valve and ensuring the stability of the connection.

[0013] As a further optimization of this utility model, the pipe disassembly and fastening mechanism is made of rust-proof material, which avoids the difficulty of disassembly caused by rust after long-term use.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model features a detachable filter element design, allowing users to easily and quickly replace the filter element by unscrewing the lower part of the filter element support. This avoids the problem of resource waste caused by the traditional filter, which usually requires replacing the entire filter after the filter element becomes clogged.

[0016] This utility model uses a rubber gasket to ensure a tight seal between the upper screw-on part of the three-way valve and the lower part of the filter element, thus preventing water leakage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure of region A in the middle;

[0019] Figure 3 This is a schematic diagram showing the disassembly and assembly states of the present utility model.

[0020] Figure 4This is a schematic diagram of the direction of water flow in this utility model.

[0021] Explanation of key symbols:

[0022] 1. Upper screw-on part of the three-way valve; 2. Water baffle plate; 3. Inlet pipe; 31. Water flow interface; 4. Outlet pipe; 5. Lower part of the filter element support; 6. Filter element; 7. Sealing gasket; 8. Pipe disassembly and fastening mechanism; 81. First locking part; 82. Second locking part; 83. Deflection shaft; 84. Screw connection part; 85. Fixing bolt. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 1 as well as Figures 3-4 This embodiment proposes a water inlet pipe filter with replaceable filter element, including a three-way valve upper screw-on part 1, a water blocking plate 2, a water inlet pipe 3, a water outlet pipe 4, a lower filter element support part 5, a filter element 6, a sealing gasket 7, and a pipe disassembly and fastening mechanism 8.

[0026] The upper screw-on part 1 of the three-way valve is connected to the inlet pipe 3 and the outlet pipe 4. A water-blocking plate 2 is provided inside the upper screw-on part 1 of the three-way valve, which vertically separates the upper screw-on part 1 of the three-way valve. The lower filter element support part 5 is connected to the upper screw-on part 1 of the three-way valve by threaded connection. The filter element 6 is located inside the lower filter element support part 5. The upper screw-on part 1 of the three-way valve and the lower filter element support part 5 are sealed together by a sealing gasket 7.

[0027] Furthermore, the sealing gasket 7 is O-shaped and made of rubber material to ensure the sealing between the upper screw-on part 1 of the three-way valve and the lower filter element bearing part 5, thus preventing water leakage.

[0028] More specifically, when the filter is working, the water sample enters the upper screw-on part 1 of the three-way valve from the inlet pipe 3. The water flow is blocked by the water baffle 2, and then flows from the upper screw-on part 1 of the three-way valve to the middle of the lower part 5 of the filter element support. The water sample then passes through the filter element 6 in the middle. During this period, the filter element 6 intercepts large particles, achieving the purpose of filtration. Subsequently, the water sample enters the periphery of the filter element 6, overflows upward and flows to the outlet pipe 4 of the upper screw-on part 1 of the three-way valve, and then enters the later section of the pipeline, flowing to the online monitoring instrument for water sample testing.

[0029] The inlet pipe 3 and the outlet pipe 4 are respectively connected to the upper screw-on part 1 of the three-way valve to form the inlet and outlet channels of water flow.

[0030] It should be noted that filter element 6 is a detachable design, and users can replace filter element 6 by unscrewing the lower part of the filter element support 5.

[0031] Example 2:

[0032] Please combine Figure 2 This embodiment further proposes a pipe disassembly and fastening mechanism 8, which includes a first locking part 81, a second locking part 82, a deflection shaft 83, a screw connection part 84, and a fixing bolt 85. The deflection shaft 83 is located at the connection between the first locking part 81 and the second locking part 82. The first locking part 81 and the second locking part 82 deflect around the deflection shaft 83. The screw connection part 84 fixes the first locking part 81 and the second locking part 82 by the fixing bolt 85.

[0033] It should be noted that the outer side of the upper screw-on part 1 of the three-way valve is connected to a water flow interface 31 extending outward. The inlet pipe 3 and the outlet pipe 4 are respectively connected to the water flow interface 31. The interface is locked by the pipe disassembly and fastening mechanism 8. Waterproof rubber gaskets are provided on the inner side of the first locking part 81 and the second locking part 82 on the pipe disassembly and fastening mechanism 8.

[0034] It should be noted that the pipe disassembly and fastening mechanism 8 is made of rust-proof material, which avoids disassembly difficulties caused by rust after long-term use.

[0035] More specifically, the connection between the inlet pipe 3 and the outlet pipe 4 and the upper screw-on part 1 of the three-way valve is provided with a pipe disassembly and fastening mechanism 8. By adjusting the tightness and engagement of the fixing bolt 85, the first locking part 81 and the second locking part 82 are controlled to deflect around the deflection axis 83, thereby controlling the tightness of the connection between the inlet pipe 3 and the upper screw-on part 1 of the three-way valve and ensuring the stability of the connection.

[0036] Specific implementation steps of the overall technical solution of this utility model:

[0037] When the filter is working, the water sample enters the upper screw-on part 1 of the three-way valve from the inlet pipe 3. The water flow is blocked by the water baffle 2, and then flows from the upper screw-on part 1 of the three-way valve to the middle of the lower filter element support 5. The water sample then passes through the filter element 6 in the middle. During this period, the filter element 6 intercepts large particles, achieving the purpose of filtration. Subsequently, the water sample enters the periphery of the filter element 6, overflows upward and flows to the outlet pipe 4 of the upper screw-on part 1 of the three-way valve, and then enters the later section of the pipeline, flowing to the online monitoring instrument for water sample testing.

[0038] The sealing gasket 7 is made of rubber to ensure the seal between the upper screw-on part 1 of the three-way valve and the lower filter element bearing part 5, preventing water leakage. Meanwhile, during use, the connection points between the inlet pipe 3 and the outlet pipe 4 and the upper screw-on part 1 of the three-way valve are equipped with pipe disassembly and fastening mechanisms 8. By adjusting the tightness and engagement of the fixing bolts 85, the first locking part 81 and the second locking part 82 are controlled to deflect around the deflection axis 83, controlling the tightness of the inlet pipe 3 and the upper screw-on part 1 of the three-way valve, ensuring the stability of the connection.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A replaceable-cartridge in-line water filter, comprising: The three-way valve upper end screwing part (1), the water blocking plate (2), the water inlet pipe (3), the water outlet pipe (4), the lower end filter core bearing lower part (5), the filter core (6), the sealing gasket (7) and the pipeline dismounting and fastening mechanism (8) are included. The three-way valve upper end screwing part (1) is connected with the water inlet pipe (3) and the water outlet pipe (4), the inside of the three-way valve upper end screwing part (1) is provided with the water blocking plate (2), the three-way valve upper end screwing part (1) is vertically separated, the lower end filter core bearing lower part (5) is connected with the three-way valve upper end screwing part (1) through screwing, the filter core (6) is arranged in the inside of the lower end filter core bearing lower part (5), the three-way valve upper end screwing part (1) is sealed and connected with the lower end filter core bearing lower part (5) through the sealing gasket (7).

2. The replaceable-cartridge in-line water filter of claim 1, wherein: The pipeline dismounting and fastening mechanism (8) includes the first locking part (81), the second locking part (82), the deflection axis (83), the screw connecting part (84) and the fixed bolt (85), the deflection axis (83) is arranged at the connection of the first locking part (81) and the second locking part (82), the first locking part (81) and the second locking part (82) are deflected around the deflection axis (83), the screw connecting part (84) fixes the first locking part (81) and the second locking part (82) through the fixed bolt (85).

3. The replaceable-cartridge in-line filter of claim 1, wherein: The sealing gasket (7) is in O shape and is made of rubber material, which ensures the sealing between the three-way valve upper end screwing part (1) and the lower end filter core bearing lower part (5).

4. The replaceable-cartridge in-line water filter of claim 2, wherein: The outside of the three-way valve upper end screwing part (1) is connected with the water flow interface (31) extending to the outside, the water inlet pipe (3) and the water outlet pipe (4) are connected on the water flow interface (31), the interface is locked through the pipeline dismounting and fastening mechanism (8), the inside of the first locking part (81) and the second locking part (82) on the pipeline dismounting and fastening mechanism (8) is provided with the waterproof rubber pad.

5. The replaceable-cartridge in-line water filter of claim 1, wherein, The filter core (6) is designed to be detachable, the filter core (6) can be replaced by screwing off the lower end filter core bearing lower part (5).

6. The replaceable-cartridge in-line water filter of claim 2, wherein: The pipeline dismounting and fastening mechanism (8) is made of rust-proof material.