A filter device with a filter cartridge that is easy to replace

Abstract

The utility model belongs to the technical field of fluid filtration, and disclose a filter device convenient to replace filter core, including cylinder and filter core subassembly, the cylinder is hollow cylinder structure, its bottom is equipped with detachable connection's sealing assembly, filter core subassembly is located inside the cylinder, including filter bucket and mounting seat, the filter bucket is the hollow filter structure of top open, the filter bucket bottom fixedly connected mounting seat, wherein, the sealing assembly includes bottom plate, elastic piece and connecting piece, the elastic piece is located between bottom plate and connecting piece, the connecting piece is connected with mounting seat fixedly, the utility model reached the effect that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem that the problem

Description

Technical Field

[0001] This utility model belongs to the field of fluid filtration technology, specifically a filtration device that facilitates filter element replacement. Background Technology

[0002] In the field of fluid filtration technology, to effectively remove solid impurities from fluids and ensure long-term stable system operation, filtration devices must possess excellent interception capabilities, anti-clogging performance, and a structural design that facilitates maintenance. In recent years, several improvement schemes have been proposed to address the problem of traditional filter screens being easily covered by impurities, leading to a decrease in throughput. For example, prior art document CN202420733075.X discloses a filtration device that is less prone to clogging. It achieves preliminary filtration by setting conical holes on the side wall of the tank, and installs a vibration component at the bottom of the tank to cause the entire tank to vibrate, promoting the shedding of particles attached to the conical holes and inner wall. Simultaneously, a filter screen is detachably wrapped around the outer wall of the tank, and the vibration of the tank causes the filter screen to shake synchronously, reducing surface impurity accumulation and thus delaying clogging to a certain extent.

[0003] However, in the technical solution adopted in the prior art, although vibration can cause some attached impurities to detach from the conical holes or the surface of the filter screen, these detached particles are not effectively discharged from the outside of the device, but instead deposit in the closed chamber at the bottom of the tank. As the operating time increases, the deposits accumulate, not only occupying the effective volume, but also potentially being stirred up again by fluid disturbances and re-attached to the filtration area, causing secondary pollution or local blockage, affecting filtration efficiency and the long-term operational stability of the equipment.

[0004] Therefore, it is necessary to optimize the existing structure to improve impurity removal capacity and ease of maintenance. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a filtration device that facilitates filter element replacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter device for easy replacement of filter elements, comprising a cylindrical body and a filter element assembly. The cylindrical body is a hollow cylindrical structure with a detachably connected sealing assembly at its bottom. The filter element assembly is disposed inside the cylindrical body and includes a filter barrel and a mounting base. The filter barrel is a hollow filter structure with an open top, and the mounting base is fixedly connected to the bottom of the filter barrel. The sealing assembly includes a base plate, an elastic element, and a connecting element. The elastic element is disposed between the base plate and the connecting element, and the connecting element is fixedly connected to the mounting base.

[0007] Preferably, the cylinder is provided with flanges at both the upper and lower ends, the flange at the bottom of the cylinder is connected to the sealing assembly by bolts, and a vibration motor is fixedly installed at the bottom of the sealing assembly by bolts.

[0008] This structure makes it easy for the cylinder to connect with external pipelines, while the installation position of the vibration motor facilitates the effective transmission of vibration energy into the cylinder.

[0009] Preferably, the inner wall of the cylinder is provided with a triangular bend, the acute angle of the triangular bend is downward, and its two sides are integrally connected to the inner wall of the cylinder.

[0010] The triangular bend forms a guide slope, which helps guide the fluid to flow along a predetermined path and reduces local eddies.

[0011] Preferably, the triangular bend region is formed by stamping and has filter holes that penetrate the side wall of the cylinder.

[0012] The filter holes and triangular bends are integrally formed, which not only enhances the structural strength of the cylinder, but also enables secondary filtration.

[0013] Preferably, the outer side of the cylinder has two integrally formed limiting eaves, which are symmetrically arranged along the circumference of the cylinder, and a filter screen is also provided on the outer wall of the cylinder on the opposite side of the two limiting eaves.

[0014] The limiting eaves provide a positioning reference for the filter screen, ensuring that its installation position is accurate and stable.

[0015] Preferably, the filter screen is a ring-shaped mesh structure, with its upper and lower ends welded and fixed to the opposite sides of the two limiting eaves.

[0016] The filter screen is fixed to the limiting eaves by welding, which improves the reliability of the connection and prevents it from loosening during operation.

[0017] Preferably, the top of the filter barrel is provided with a sealing ring, which is fitted around the outer periphery of the top of the filter barrel and abuts against the upper part of the inner wall of the barrel.

[0018] The sealing ring forms a sealing fit with the inner wall of the cylinder, ensuring that the fluid must first undergo primary filtration inside the filter barrel.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention utilizes a filter element assembly installed inside the cylinder, allowing fluid to first enter the assembly for primary filtration, effectively forming a dirt-holding chamber and preventing impurities from directly accumulating in the filtration channel. By fixing the filter element assembly to a sealing assembly, a fully detachable unit is formed, eliminating the need to disassemble the entire machine for maintenance. Only the sealing assembly needs to be removed, along with the filter element assembly and any loose particles deposited at the bottom. The sealing assembly incorporates a spring-loaded element that provides pre-tightening force after installation, ensuring a reliable fit between the filter element assembly and the inner wall of the cylinder, maintaining a stable flow path. The synergistic effect of these structures effectively solves the problems of difficult-to-discharge loose impurities and persistent clogging during long-term operation, significantly improving the ease of maintenance and anti-clogging performance of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a frontal cross-sectional view of the present invention.

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the sealing assembly structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the filter assembly structure of this utility model.

[0026] In the diagram: 1. Cylinder; 11. Limiting edge; 12. Bend; 13. Filter hole; 2. Filter screen; 3. Sealing assembly; 31. Base plate; 32. Elastic component; 33. Connecting component; 4. Vibration motor; 5. Filter element assembly; 51. Filter barrel; 52. Sealing ring; 53. Mounting base. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 5 As shown, this utility model provides a filtration device that facilitates filter element replacement, including a cylinder 1, a filter screen 2, a sealing assembly 3, a vibration motor 4, and a filter element assembly 5.

[0029] The cylinder 1 is a hollow cylindrical structure with flanges at both the top and bottom for detachable connection to an external piping system.

[0030] A sealing assembly 3 is installed at the bottom of the cylinder 1 via a flange, and the filter element assembly 5 is entirely located inside the cylinder 1.

[0031] On the inner wall of the cylinder 1, an array of triangular bends 12 are formed by stamping. The acute angle of the bends 12 faces downward, and their two sides form a flow guide slope with the inner wall of the cylinder 1.

[0032] While the angle 12 is being formed by stamping, filter holes 13 are simultaneously punched out in the area of ​​the angle 12. That is, the filter holes 13 are through-hole structures that are naturally formed during the forming process of the angle 12, which have both the function of enhancing rigidity and secondary filtration.

[0033] In addition, two limiting eaves 11 are integrally formed on the outer side of the cylinder 1. The two limiting eaves 11 are symmetrically arranged around the circumference of the cylinder 1. A filter screen 2 is welded and installed on the outer side of the cylinder 1 on the opposite side of the two limiting eaves 11. The filter screen 2 is a ring mesh structure. Its upper and lower ends are welded and fixed to the outer wall of the cylinder 1 on the opposite side of the two limiting eaves 11, respectively, as the third-stage fine filtration unit to intercept the fine particles remaining after the first two stages of filtration.

[0034] The filter element assembly 5 includes a filter cartridge 51, a sealing ring 52, and a mounting base 53.

[0035] The filter barrel 51 is a hollow cylindrical structure made of grid mesh. Its top is open and is provided with a sealing ring 52. The sealing ring 52 is fitted around the outer periphery of the top of the filter barrel 51 and tightly abuts against the upper part of the inner wall of the cylinder 1, ensuring that the fluid must first enter the interior of the filter barrel 51 after entering the cylinder 1. The bottom of the filter barrel 51 is sealed and is fixed with a mounting base 53 by bolts.

[0036] The sealing assembly 3 includes a base plate 31, an elastic element 32, and a connector 33.

[0037] The bottom plate 31 is a circular flat plate used to seal the bottom of the cylinder 1. An elastic element 32 is welded to the center of its upper end face. A connector 33 is welded to the top of the elastic element 32. The connector 33 is inserted upward and fixed in the mounting seat 53 of the filter element assembly 5.

[0038] The function of the elastic element 32 is that when the integral unit is installed to the bottom of the cylinder 1 through the flange, its elastic pre-tightening force pushes the sealing ring 52 upward to press against the upper edge of the inner wall of the cylinder 1, thereby forcibly guiding the fluid flow path, so that the fluid can only flow downward into the filter barrel 51 after entering from the top of the cylinder 1, thus completing the first stage of filtration.

[0039] The vibration motor 4 is fixed to the bottom plate 31 of the sealing assembly 3 by bolts. The high-frequency vibration generated during operation is transmitted to the entire cylinder 1 through the bottom plate 31, effectively shaking off impurities attached to the outer wall of the filter barrel 51, the surface of the corner 12, the edge of the filter hole 13 and the filter screen 2, and preventing clogging.

[0040] The working principle and usage process of this utility model are as follows:

[0041] After the fluid enters through the flange inlet at the top of the cylinder 1, the sealing ring 52 is pressed tightly against the upper edge of the inner wall of the cylinder 1 under the action of the elastic element 32, and the fluid is forced into the interior of the filter element assembly 5, i.e. the filter bucket 51, to complete the first stage of coarse filtration.

[0042] The filtered fluid flows out from the outer wall of the filter barrel 51 and impacts the triangular bend 12 on the inner wall. The downward-facing acute angle of the bend 12 creates a guiding effect, directing the fluid along its inclined surface to the filter holes 13, and completing the second stage of filtration. Subsequently, the fluid passes through the arranged filter screens 2, completing the third stage of fine filtration before being discharged.

[0043] During operation, the vibration motor 4 vibrates continuously, causing impurities attached to each filter interface to loosen and settle into the bottom cavity of the cylinder 1, making it easy to clean regularly.

[0044] When the filter element assembly 5 needs to be replaced or cleaned, the operator only needs to loosen the flange connection bolts between the bottom of the cylinder 1 and the sealing assembly 3 to remove the sealing assembly 3 and the filter element assembly 5 as a whole unit from the cylinder 1.

[0045] At this time, the detached impurities deposited at the bottom of the inner side of the cylinder 1 are carried out along with the whole unit, avoiding secondary pollution or local blockage caused by impurity retention.

[0046] After replacement or cleaning, reinstall the unit into cylinder 1 and tighten the flange bolts.

[0047] At this time, the elastic element 32 pushes the sealing ring 52 to tightly abut against the upper edge of the inner wall of the cylinder 1 again, restoring the sealing state and the correct three-stage filtration flow path.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for easy replacement of filter elements, comprising a cylindrical body (1) and a filter element assembly (5), characterized in that: The cylinder (1) is a hollow cylindrical structure, and its bottom is provided with a detachable sealing component (3). The filter element assembly (5) is located inside the cylinder (1) and includes a filter barrel (51) and a mounting base (53). The filter barrel (51) is a hollow filter structure with an open top, and the mounting base (53) is fixedly connected to the bottom of the filter barrel (51). The sealing assembly (3) includes a base plate (31), an elastic element (32) and a connector (33). The elastic element (32) is located between the base plate (31) and the connector (33), and the connector (33) is fixedly connected to the mounting base (53).

2. The filter device for easy filter element replacement according to claim 1, characterized in that: The cylinder (1) is provided with flanges at both the top and bottom ends. The flange at the bottom of the cylinder (1) is connected to the sealing assembly (3) by bolts. The bottom of the sealing assembly (3) is fixedly installed with a vibration motor (4) by bolts.

3. The filter device for easy filter element replacement according to claim 1, characterized in that: The inner wall of the cylinder (1) is provided with a triangular bend (12), the acute angle of the triangular bend (12) is downward, and its two sides are integrally connected with the inner wall of the cylinder (1).

4. The filter device for easy filter element replacement according to claim 3, characterized in that: The triangular angle (12) region is formed by stamping and has filter holes (13) that penetrate the side wall of the cylinder (1).

5. The filter device for easy filter element replacement according to claim 1, characterized in that: The outer side of the cylinder (1) has two limiting eaves (11) integrally formed. The two limiting eaves (11) are symmetrically arranged around the cylinder (1) and a filter screen (2) is provided on the outer wall of the cylinder (1) on the opposite side of the two limiting eaves (11).

6. The filter device for easy filter element replacement according to claim 5, characterized in that: The filter screen (2) is a ring-shaped mesh structure, with its upper and lower ends welded and fixed to the opposite side of the two limiting eaves (11).

7. The filter device for easy filter element replacement according to claim 1, characterized in that: The filter barrel (51) is provided with a sealing ring (52) at the top. The sealing ring (52) is fitted around the outer periphery of the top of the filter barrel (51) and abuts against the upper part of the inner wall of the barrel (1).

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