Metal sintered filter element susceptible to backwashing

By introducing rotating components and support structures into the sintered metal filter element, combined with high-pressure water flow and sealing design, the problem of difficult cleaning of existing filter elements is solved, enabling easy backwashing and automated cleaning, extending service life and reducing maintenance costs.

CN224541118UActive Publication Date: 2026-07-24XINXIANG RUIKAI FILTER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXIANG RUIKAI FILTER EQUIP CO LTD
Filing Date
2025-06-16
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing sintered metal filter elements have a unidirectional filtration structure and lack an effective backwashing design, resulting in difficult cleaning, short maintenance cycles, and limited service life. Some filter elements with backwashing functions have complex structures, high costs, and are difficult to clean thoroughly, affecting the continuous operation capability of the equipment.

Method used

A metal sintered filter element that is easy to backwash is designed. By setting a rotating component and a support component on the base, the cleaning brush is driven by high-pressure water flow and rotating shaft to rotate and clean the inner wall of the filter element. Combined with the sealing structure, it is easy to disassemble and install, realizing automated backwashing.

Benefits of technology

It achieves a simple and efficient backwashing process, extends the service life of the filter element, reduces maintenance costs, and improves the continuous operation capability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to metal sintering filter core technical field provides an easy to reverse cleaning metal sintering filter core, include: base and rotation axis, filter core body sets up on the inner wall of base, the inner wall of base is opened with the sliding slot. The utility model, through high pressure water pipe connection on the surface of connecting pipe, manual rotation sealing cap provides an initial rotation force to it, opens the valve on the surface of connecting pipe, by pipeline and injects high pressure water column in the inside of filter core body, when high pressure water column and the inclined piece on the surface of rotation axis contact, drives rotation axis to rotate with the sealing ring of installation, makes the rotating sleeve shaft bearing rotation in the inner wall of sliding slot, by the connecting rod on the surface of rotation axis to fixed work of cleaning brush, thereby drives cleaning brush and the inner wall of filter core body to carry out the contact rotation work, prevents the inner wall and attaches the impurity, and then by the water flow and impurity of one end of connecting flange orientation is discharged, completes the reverse cleaning work, and the operation is simple.
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Description

Technical Field

[0001] This utility model relates to the field of metal sintered filter element technology, and in particular to a metal sintered filter element that is easy to backwash. Background Technology

[0002] Metal sintered filter elements are widely used in various high-requirement filtration systems due to their advantages such as high temperature resistance, corrosion resistance, and high mechanical strength.

[0003] However, during long-term use, impurities tend to accumulate on the surface of the filter element, causing problems such as clogging, increased pressure differential, and decreased filtration efficiency. In some existing technologies, most metal sintered filter elements are unidirectional filtration structures and lack effective backwashing designs, resulting in difficult cleaning, short maintenance cycles, and limited service life. Some filter elements with backwashing functions have complex structures, high costs, and are difficult to thoroughly clean, affecting the continuous operation capability of the equipment. Therefore, solutions are needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art: most metal sintered filter elements have a unidirectional filtration structure and lack an effective backwashing design, which leads to difficult cleaning, short maintenance cycle and limited service life. Some filter elements with backwashing function have complex structures, high costs and are difficult to clean thoroughly, affecting the continuous operation capability of the equipment.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a metal sintered filter element that is easy to backwash, comprising: a base and a rotating shaft; a filter element body disposed on the inner wall of the base, the inner wall of the base being provided with a sliding groove; and further comprising:

[0006] A support assembly, disposed on the surface of the base, the support assembly comprising:

[0007] Multiple support rods are fixedly installed on the outer surface of the base, and the multiple support rods are arranged circumferentially along the edge of the base;

[0008] A rotating assembly, movably disposed within the base, comprises:

[0009] The rotating sleeve shaft has a bearing embedded in the inner wall of the slide groove, and the rotating sleeve shaft is installed inside the slide groove in conjunction with a seal.

[0010] Preferably, the support assembly further includes: a connecting flange fixedly disposed on one end surface of the plurality of support rods, the connecting flange being movably connected to the surface of the filter element body.

[0011] The technical effect of adopting the above-mentioned further solution is that the base fixes the support rod inside the support assembly, while the connecting flange positions the filter element body.

[0012] Preferably, the rotating assembly further includes: a threaded mounting portion 1 is provided on the outer surface of the rotating sleeve shaft, and a sealing cap is threadedly fitted on the outer surface of the threaded mounting portion 1.

[0013] The technical advantage of adopting the above-mentioned further solution is that the installation is carried out by means of a sealing ring through a rotating component, and by means of a pair of sealing caps through the threaded mounting part on the surface.

[0014] Preferably, the inner wall of the sealing cap is provided with an internal threaded sleeve, which is movably connected to the surface of the threaded mounting part.

[0015] The technical effect of adopting the above-mentioned further solution is that the internal threaded sleeve on the inner wall of the sealing cap connects with the threaded mounting part during installation to provide a sealing function.

[0016] Preferably, the inner wall of the sealing cap is provided with a sealing ring, and the sealing ring is threadedly sleeved on the surface of the threaded mounting part two.

[0017] The technical effect of adopting the above-mentioned further solution is that the threaded mounting part two is installed and fixed by the sealing ring inside the sealing cap, which facilitates disassembly later.

[0018] Preferably, the surface of the base is provided with a connecting pipe, and the surface of the connecting pipe is provided with a valve.

[0019] The technical advantage of adopting the above-mentioned further solution is that a high-pressure pipeline can be connected for internal cleaning by opening the valve on the surface of the connecting pipe.

[0020] Preferably, a connecting rod is provided symmetrically on one side surface of the rotating shaft, and a cleaning brush is provided on one end surface of the two connecting rods.

[0021] The technical effect of adopting the above-mentioned further solution is that the cleaning brush is fixed by the connecting rod on the rotating shaft surface.

[0022] Preferably, the outer surface of the cleaning brush is slidably connected to the inner wall of the filter element body, and an inclined plate is provided on one side surface of the rotating shaft.

[0023] The technical effect of adopting the above-mentioned further solution is that the rotating shaft is driven by the contact between the inclined plate on the surface of the rotating shaft and the high-pressure water flow, while the cleaning brush is slidably embedded in the inner wall of the filter element body to clean the inner wall.

[0024] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0025] 1. In this utility model, before cleaning, the rotating sleeve shaft inside the chute is pressed against the surface of the threaded mounting part one, and the inner threaded sleeve of the inner wall contacts the surface of the threaded mounting part one to complete the sealing work. At the same time, the sealing cap is pressed again towards the base, and the threaded mounting part two of the rotating shaft is threaded into the inside of the sealing ring to complete the assembly of the rotating shaft. When it is not needed, the sealing cap can be limited with the help of auxiliary equipment, and the rotating shaft can be disassembled as a whole, which is convenient for maintenance and easy to replace related parts.

[0026] 2. In this utility model, a high-pressure water pipe is connected to the surface of the connecting pipe. The sealing cap is manually rotated to provide an initial rotational force. The valve on the surface of the connecting pipe is opened, and a high-pressure water jet is sprayed into the interior of the filter element body through the pipe. When the high-pressure water jet contacts the inclined plate on the surface of the rotating shaft, it drives the rotating shaft to rotate with the installed sealing ring, so that the rotating sleeve shaft rotates on the inner wall of the slide groove. The cleaning brush is fixed by the connecting rod on the surface of the rotating shaft, thereby driving the cleaning brush to contact and rotate with the inner wall of the filter element body to prevent impurities from adhering to the inner wall. Then, the water and impurities are discharged from the end facing the connecting flange, completing the backwashing work. The operation is simple. Alternatively, the sealing cap can be driven by a motor or other equipment. Attached Figure Description

[0027] Figure 1 This utility model presents a partially unfolded structural diagram of a metal sintered filter element that is easy to backwash.

[0028] Figure 2 A top view of a metal sintered filter element that is easy to backwash is provided for this utility model.

[0029] Figure 3 A cross-sectional view of a metal sintered filter element that is easy to backwash is provided for this utility model.

[0030] Figure 4 This invention proposes a metal sintered filter element that is easy to backwash. Figure 1 Enlarged structural diagram at point A in the middle.

[0031] Legend:

[0032] 1. Base; 101. Slide groove; 1011. Rotating sleeve shaft; 1012. Threaded mounting part one; 1013. Sealing cap; 1014. Sealing ring; 1015. Internal threaded sleeve; 102. Support rod; 1021. Connecting flange; 103. Filter element body; 104. Rotating shaft; 1041. Threaded mounting part two; 1042. Inclined plate; 1043. Connecting rod; 1044. Cleaning brush; 105. Connecting pipe. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0035] Example 1, as Figure 1-4 As shown, this utility model provides an easy-to-backwash metal sintered filter element, including: a base 1 and a rotating shaft 104. The base 1 has a filter element body 103 inside, and a groove 101 is formed on its inner wall. Multiple support rods 102 distributed circumferentially along the edge are fixed on the outer surface of the base 1 to form a stable external support structure. A rotating assembly is movably arranged inside the base 1. The assembly includes a rotating sleeve shaft 1011 embedded in the groove 101 through a bearing and sealed by a seal. The rotating sleeve shaft 1011 is connected to the rotating shaft 104 and can drive the filter element body 103 to rotate and clean under the action of a driving device, thereby improving cleaning efficiency and cleaning effect.

[0036] In this embodiment, before cleaning, the rotating sleeve 1011 inside the slide groove 101 is pressed against, and the sealing cap 1013 is threaded onto the surface of the threaded mounting part 1012. The inner threaded sleeve 1015 of the inner wall contacts the surface of the threaded mounting part 1012 to complete the sealing work. At the same time, the sealing cap 1013 is pressed again towards the base 1, and the threaded mounting part 1041 at one end of the rotating shaft 104 is threaded into the inside of the sealing ring 1014 to complete the assembly of the rotating shaft 104. When it is not needed, the sealing cap 1013 is limited by the auxiliary equipment, and the rotating shaft 104 can be disassembled as a whole, which is convenient for maintenance and easy to replace related parts.

[0037] Example 2: The support assembly includes multiple support rods 102 fixedly mounted on the outer surface of the base 1, with connecting flanges 1021 at their ends, movably connected to the outer wall of the filter element body 103; the rotating assembly includes a rotating sleeve shaft 1011, with a threaded mounting portion 1012 on its outer surface, and a sealing cap 1013 and an internal threaded sleeve 1015, and a sealing ring 1014 inside to achieve sealing protection of the rotating component; the rotating shaft 104 has a threaded mounting portion 1041 on its surface, which cooperates with the sealing ring 1014; on the base 1 A connecting pipe 105 is provided, and a valve is configured on its surface to control the flow of the cleaning medium. A connecting rod 1043 is symmetrically provided on one side of the rotating shaft 104, and its end is connected to a cleaning brush 1044, which can slide along the inner wall of the filter element body 103 for cleaning. At the same time, the surface of the rotating shaft 104 is also provided with an inclined plate 1042. When the high-pressure cleaning fluid flows through the inclined plate 1042, due to its inclined angle design, the impact force of the fluid flow will be converted into a rotational driving force, thereby driving the rotating shaft 104 and its connecting parts to rotate synchronously, realizing the automatic cleaning function and improving the cleaning efficiency and automation level.

[0038] In this embodiment, a high-pressure water pipe is connected to the surface of the connecting pipe 105. The sealing cap 1013 is manually rotated to provide an initial rotational force. The valve on the surface of the connecting pipe 105 is opened, and a high-pressure water jet is sprayed into the interior of the filter element body 103 through the pipe. When the high-pressure water jet contacts the inclined plate 1042 on the surface of the rotating shaft 104, it drives the rotating shaft 104 to rotate with the installed sealing ring 1014. This causes the rotating sleeve shaft 1011 to rotate on the inner wall of the slide groove 101. The cleaning brush 1044 is fixed by the connecting rod 1043 on the surface of the rotating shaft 104, thereby driving the cleaning brush 1044 to contact and rotate with the inner wall of the filter element body 103 to prevent impurities from adhering to the inner wall. Then, the water and impurities are discharged from the end facing the connecting flange 1021, completing the backwashing work. The operation is simple. Alternatively, the sealing cap 1013 can be driven by a motor or other equipment.

[0039] Working principle: During use, the filter element body 103 is positioned using the support rod 102 and connecting flange 1021 mounted on the surface of the base 1. Before cleaning, the rotating sleeve shaft 1011 inside the slide groove 101 is pressed against the base 1, and the sealing cap 1013 is threaded onto the surface of the threaded mounting part 1012. The inner threaded sleeve 1015 on the inner wall contacts the surface of the threaded mounting part 1012 to complete the sealing. Simultaneously, the sealing cap 1013 is pressed again towards the base 1, and the threaded mounting part 1041 at one end of the rotating shaft 104 is threaded into the sealing ring 1014, completing the assembly of the rotating shaft 104. When not in use, the sealing cap 1013 is limited using auxiliary equipment, allowing the rotating shaft 104 to be disassembled as a whole, facilitating maintenance and replacement of related parts. Additionally, a high-pressure water pipe connects to the... The sealing cap 1013 is manually rotated on the surface of the connecting pipe 105 to provide an initial rotational force. The valve on the surface of the connecting pipe 105 is opened, and a high-pressure water jet is sprayed into the interior of the filter element body 103 through the pipe. When the high-pressure water jet contacts the inclined plate 1042 on the surface of the rotating shaft 104, it drives the rotating shaft 104 to rotate with the installed sealing ring 1014, so that the rotating sleeve shaft 1011 rotates on the inner wall of the slide groove 101. The cleaning brush 1044 is fixed by the connecting rod 1043 on the surface of the rotating shaft 104, thereby driving the cleaning brush 1044 to contact and rotate with the inner wall of the filter element body 103 to prevent impurities from adhering to the inner wall. Then, the water and impurities are discharged from the end facing the connecting flange 1021, completing the backwashing work. The operation is simple. Alternatively, the sealing cap 1013 can also be driven by a motor or other equipment.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A metal sintered filter element that is easy to backwash, comprising: A base (1) and a rotating shaft (104); a filter element body (103) disposed on the inner wall of the base (1), wherein the inner wall of the base (1) is provided with a groove (101); characterized in that it further includes: A support assembly is disposed on the surface of the base (1), the support assembly comprising: Multiple support rods (102) are fixedly installed on the outer surface of the base (1), and the multiple support rods (102) are arranged circumferentially around the edge of the base (1); A rotating assembly, movably disposed inside the base (1), the rotating assembly comprising: Rotary sleeve shaft (1011), bearing is embedded in the inner wall of the slide groove (101), and the rotating sleeve shaft (1011) is installed inside the slide groove (101) in conjunction with the sealing element.

2. The easily backwashable sintered metal filter element according to claim 1, characterized in that: The support assembly further includes: a connecting flange (1021) fixedly provided on one end surface of the multiple support rods (102), and the connecting flange (1021) is movably connected to the surface of the filter element body (103).

3. The easily backwashable sintered metal filter element according to claim 1, characterized in that: The rotating assembly further includes: a threaded mounting part (1012) is provided on the outer surface of the rotating sleeve shaft (1011), and a sealing cap (1013) is threadedly fitted on the outer surface of the threaded mounting part (1012).

4. The easily backwashable sintered metal filter element according to claim 3, characterized in that: The inner wall of the sealing cap (1013) is provided with an internal threaded sleeve (1015), which is movably connected to the surface of the threaded mounting part (1012).

5. A metal sintered filter element that is easy to backwash according to claim 4, characterized in that: The inner wall of the sealing cap (1013) is provided with a sealing ring (1014), and the sealing ring (1014) is threaded onto the surface of the threaded mounting part two (1041).

6. The easily backwashable sintered metal filter element according to claim 1, characterized in that: A connecting pipe (105) is provided on the surface of the base (1), and a valve is provided on the surface of the connecting pipe (105).

7. A metal sintered filter element that is easy to backwash according to claim 6, characterized in that: A connecting rod (1043) is provided symmetrically on one side surface of the rotating shaft (104), and a cleaning brush (1044) is provided on one end surface of the two connecting rods (1043).

8. A metal sintered filter element that is easy to backwash according to claim 7, characterized in that: The outer surface of the cleaning brush (1044) is slidably connected to the inner wall of the filter body (103), and an inclined plate (1042) is provided on one side surface of the rotating shaft (104).