Duplex filter

Abstract

The utility model discloses a duplex filter which comprises a pair of filter element bearing shells, a pair of butt joint drainage pipelines, a pair of valve body adjusting handles, a pair of butt joint adapters and a pair of replacement cover plates, the utility model relates to the technical field of switching filters, the quick and accurate alignment and installation process of a filter element body is realized through a filter element positioning and clamping structure, and once the installation is finished, the filter element body part is stably locked at a preset working position, so that the innovation not only ensures the accurate positioning of a duplex filter during operation, but also ensures the safety of the duplex filter. The risks of low filtering efficiency, liquid seepage, liquid leakage and other adverse conditions possibly caused by installation deviation or not in place are greatly reduced, so that the stability of the filtering efficiency of the filter is remarkably improved, qualitative leap is realized in the aspect of user experience, the use process becomes simpler, more convenient and more efficient, and the use cost is reduced. And the operation convenience and reliability are greatly enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of switch filters, in particular to a double-connected filter. Background Art

[0002] A duplex filter, also known as a duplex switching filter, is a filtering device composed of two stainless steel filters connected in parallel. It has many advantages such as novel and reasonable structure, good sealing, strong flow capacity, and easy operation. It is a multi-purpose filtering device with a wide range of applications and strong adaptability. The common duplex filters on the market are famous for their convenient filter element switching mechanism, but the replacement of the filter element is often quite cumbersome and inconvenient. The traditional filter element fixing method, such as relying on the close fit of bolts and coupling holes, not only increases the complexity of installation, but may also cause problems due to improper handling of details during operation. Even if the original intention of the duplex design is to simplify the maintenance process and allow filter element replacement without interrupting production, the inaccurate or inadequate installation of the filter element may still become a potential hidden danger that affects the performance and service life of the filter, causing unnecessary troubles and costs to users. Therefore, for the design optimization of the duplex filter, it should focus on how to simplify the filter element replacement process, improve the convenience of installation, and ensure the stable locking of the filter element. For the above problems, there may already be technical means to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: a duplex filter, comprising: a pair of filter element bearing housings, a pair of docking drainage pipes, a pair of valve body adjustment handles, a pair of docking adapters and a pair of replacement cover plates, wherein the pair of filter element bearing housings are respectively connected to the pair of docking drainage pipes, the pair of docking adapters are respectively installed on the pair of docking drainage pipes, the pair of valve body adjustment handles are respectively inserted on the pair of docking drainage pipes, the pair of replacement cover plates are respectively inserted on the pair of filter element bearing housings, the pair of filter element positioning locking structures are respectively installed in the pair of filter element bearing housings, and the pair of filter element bearing housings are respectively installed with external locking components;

[0004] The filter element positioning and locking structure comprises: a displacement connection plate, a displacement clamping column, a pair of connection extension connecting rods, a pair of connecting rod connection sliding columns, a pair of special-shaped displacement blocks, a pair of special-shaped block upper sliding grooves, a filter element body, a plurality of auxiliary spring pressure springs, a supporting core plate and a pair of cover pressure half rings;

[0005] The filter element is installed in the filter element bearing shell through a slide rail, the displacement post is installed on the displacement post, a pair of the connection extension connecting rods are respectively connected with the displacement post, and a pair of the connection extension connecting rods are respectively sleeved on a pair of the connecting rod connection sliding posts, a pair of the special-shaped displacement blocks are respectively fixedly installed in the filter element bearing shell through a rotating shaft, and a pair of the special-shaped displacement blocks are respectively provided with a pair of the special-shaped block upper sliding grooves, a pair of the connecting rod connection sliding posts are respectively inserted in a pair of the special-shaped block upper sliding grooves, the filter element body is installed in the filter element bearing shell, and the filter element body is movably connected with the supporting core plate, a plurality of the auxiliary pressure springs are respectively installed at the inner bottom of the filter element bearing shell, and a plurality of the auxiliary pressure springs are respectively connected with the supporting core plate, a pair of the cover pressure half rings are respectively installed on a pair of the special-shaped displacement blocks, and a pair of the cover pressure half rings are respectively movably connected with the filter element body;

[0006] It should be noted that, in the above, the liquid is introduced into a pair of filter element bearing shells through a pair of docking adapters, and then flows out from the docking adapter on the other side through the guidance of the docking drainage pipe, and the valve body adjustment handle can control the ball valve provided in the docking drainage pipe, so that the liquid is switched to the filter element bearing shell on the opposite side for flow filtration. When the filter element body needs to be replaced and installed, the replacement cover plate is screwed and separated from the filter element bearing shell, and then the filter element body is placed in the filter element bearing shell, so that the filter element body and the fitting groove on the supporting core plate are aligned, so that the filter element body is in the correct installation position, and then the displacement post is slid downward on the outer side of the filter element bearing shell, and the downward displacement post is moved downward. The clamping column will pull the displacement connecting plate and thus drive a pair of connecting extension connecting rods, thereby making the connecting rod connecting sliding column slide in the sliding groove on the different block, and pull the special-shaped displacement block to rotate and displace on the rotating shaft, so that a pair of cover pressure half rings are respectively close to and fit with the filter element body, and press the filter element body downward, thereby compressing multiple auxiliary pressure springs, and then fixing the filter element body through an external locking assembly, so as to achieve precise installation and positioning of the filter element body. The coupling thread set on the replacement cover plate can make the replacement cover plate screwed and connected with the filter element bearing shell, and the auxiliary sealing fitting layer set on the displacement clamping column can make the displacement clamping column maintain sliding properties while ensuring the sealing of the entire filter.

[0007] Preferably, the external locking assembly comprises: a native fitting block, an external fitting block, a fitting block bolt body and a clamping column slide groove;

[0008] The native bonding block is installed on the filter element bearing housing through a rotating shaft, the filter element bearing housing is provided with the clamping column slide groove, the external bonding block is movably connected with the native bonding block, the block plug body is movably inserted on the native bonding block and the external bonding block respectively, and the displacement clamping column is inserted on the clamping column slide groove;

[0009] It should be noted that, in the above, when the displacement column slides to the locking position, the original bonding block is rotated and bonded to the displacement column, and then the external bonding block is spliced ​​with the original bonding block, and then the two are connected by the block bolt. At this time, the displacement column is fixed in the specified locking position.

[0010] Preferably, a ball valve is provided in the docking drainage pipe;

[0011] Preferably, the replacement cover plate is provided with a coupling thread;

[0012] Preferably, an auxiliary sealing layer is provided on the displacement clamping column;

[0013] Preferably, the supporting core plate is provided with a fitting slot.

[0014] Beneficial Effects

[0015] The utility model provides a double filter. It has the following beneficial effects. Compared with the prior art, the double filter has the following beneficial effects: the device realizes the quick and accurate positioning and installation process of the filter body through the filter element positioning and locking structure. Once the installation is completed, the filter body component is firmly locked in the preset working position. This innovation not only ensures the accurate positioning of the double filter during operation, but also greatly reduces the risk of low filtering efficiency and adverse conditions such as seepage and leakage caused by installation deviation or inadequate installation. Therefore, the filter not only significantly improves the stability of filtering efficiency, but also achieves a qualitative leap in user experience, making the use process more simple and efficient, and greatly enhancing the convenience and reliability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a trapezoidal cross-sectional structure of a double filter described in the utility model.

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of "A" in the figure.

[0018] In the figure: 1. Filter element bearing shell; 2. Docking drainage pipe; 3. Valve body adjustment handle; 4. Docking adapter; 5. Replacement cover plate; 6. Displacement connecting plate; 7. Displacement clamping column; 8. Connecting extension connecting rod; 9. Connecting rod connecting sliding column; 10. Special-shaped displacement block; 11. Slide groove on special block; 12. Filter element body; 13. Auxiliary pressure spring; 14. Supporting core plate; 15. Cover pressure half ring; 16. Native fitting block; 17. External fitting block; 18. Block bolt body; 19. Clamping column slide groove. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0021] Example

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-2As shown, a duplex filter comprises: a pair of filter element bearing housings 1, a pair of docking drainage pipes 2, a pair of valve body adjustment handles 3, a pair of docking adapters 4 and a pair of replacement cover plates 5, wherein the pair of filter element bearing housings 1 are respectively connected to the pair of docking drainage pipes 2, the pair of docking adapters 4 are respectively installed on the pair of docking drainage pipes 2, the pair of valve body adjustment handles 3 are respectively inserted on the pair of docking drainage pipes 2, the pair of replacement cover plates 5 are respectively inserted on the pair of filter element bearing housings 1, the pair of filter element positioning locking structures are respectively installed in the pair of filter element bearing housings 1, and the pair of filter element bearing housings 1 are respectively installed with filter element positioning locking structures. External locking components are respectively installed on them; the filter element positioning and locking structure includes: a displacement connection plate 6, a displacement clamping column 7, a pair of connection extension connecting rods 8, a pair of connecting rod connection sliding columns 9, a pair of special-shaped displacement blocks 10, a pair of special-shaped block upper slide grooves 11, a filter element body 12, a number of auxiliary pressure springs 13, a supporting core plate 14 and a pair of cover pressure semi-rings 15; the displacement connection plate 6 is installed in the filter element bearing shell 1 through a slide rail, the displacement clamping column 7 is installed on the displacement connection plate 6, a pair of the connection extension connecting rods 8 are respectively connected to the displacement clamping column 7, and a pair of the connection extension connecting rods 8 are respectively sleeved on a pair of the connecting rod connection sliding columns 9, a pair of the special-shaped displacement blocks 10 are respectively fixedly installed in the filter element bearing housing 1 through a rotating shaft, and a pair of the special-shaped displacement blocks 10 are respectively provided with a pair of the special-shaped upper slide grooves 11, a pair of the connecting rod connecting slide columns 9 are respectively inserted in a pair of the special-shaped upper slide grooves 11, the filter element body 12 is installed in the filter element bearing housing 1, and the filter element body 12 is movably connected to the supporting core plate 14, a plurality of the auxiliary spring pressure springs 13 are respectively installed at the bottom of the inner side of the filter element bearing housing 1, and a plurality of the auxiliary spring pressure springs 13 are respectively connected to the supporting core plate 14, a pair of the cover pressure half rings 15 are respectively installed It is installed on a pair of the special-shaped displacement blocks 10, and a pair of the cover pressure half rings 15 are respectively movably connected to the filter element body 12; the external locking assembly includes: a native fitting block 16, an external fitting block 17, a block plug body 18 and a column slide groove 19; the native fitting block 16 is installed on the filter element bearing shell 1 through a rotating shaft, and the filter element bearing shell 1 is provided with the column slide groove 19, the external fitting block 17 is movably connected to the native fitting block 16, the block plug body 18 is respectively movably inserted into the native fitting block 16 and the external fitting block 17, and the displacement column 7 is inserted into the column slide groove 19.

[0023] According to the attached Figure 1-2It is concluded that the liquid is introduced into a pair of filter element bearing shells 1 through a pair of docking adapters 4, and then flows out from the docking adapter 4 on the other side through the guidance of the docking drainage pipe 2, and the valve body adjustment handle 3 can control the ball valve set in the docking drainage pipe 2, so that the liquid is switched to the filter element bearing shell 1 on the opposite side for flow filtration. When the filter element body 12 needs to be replaced and installed, the replacement cover plate 5 is screwed and separated from the filter element bearing shell 1, and then the filter element body 12 is placed in the filter element bearing shell 1, so that the filter element body 12 and the fitting groove on the supporting core plate 14 are aligned, so that the filter element body 12 is in the correct installation position, and then the displacement clamping column 7 is slid downward on the outer side of the filter element bearing shell 1. The downward moving displacement clamping column 7 will pull the displacement connection plate 6 so that a pair of connection extension connecting rods 8 are driven, so that the connecting rod connection sliding column 9 slides in the sliding groove 11 on the different block. The special-shaped displacement block 10 is pulled to rotate and displace based on the rotating shaft, so that a pair of cover pressure half rings 15 are respectively close to and fit with the filter element body 12, and the filter element body 12 is pressed downward, thereby compressing multiple auxiliary pressure springs 13, and then fixing the filter element body 12 through the external locking component, so as to achieve accurate installation and positioning of the filter element body 12, the coupling thread set on the replacement cover plate 5 can make the replacement cover plate 5 and the filter element bearing shell 1 screwed together, and the auxiliary sealing bonding layer set on the displacement clamping column 7 can make the displacement clamping column 7 maintain sliding properties while ensuring the sealing of the entire filter; when the displacement clamping column 7 slides to the locked position, the original bonding block 16 is rotated and fit with the displacement clamping column 7, and then the external bonding block 17 is spliced ​​with the original bonding block 16, and then the two are connected by the block bolt 18, and the displacement clamping column 7 is fixed in the specified locking position.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double filter, comprising: A pair of filter element bearing shells (1), a pair of docking drainage pipes (2), a pair of valve body adjustment handles (3), a pair of docking adapters (4) and a pair of replacement cover plates (5), characterized in that the pair of filter element bearing shells (1) are respectively connected to the pair of docking drainage pipes (2), the pair of docking adapters (4) are respectively installed on the pair of docking drainage pipes (2), the pair of valve body adjustment handles (3) are respectively inserted on the pair of docking drainage pipes (2), the pair of replacement cover plates (5) are respectively inserted on the pair of filter element bearing shells (1), the pair of filter element positioning locking structures are respectively installed in the pair of filter element bearing shells (1), and the pair of filter element bearing shells (1) are respectively installed with external locking components; The filter element positioning and locking structure comprises: a displacement connection plate (6), a displacement clamping column (7), a pair of connection extension connecting rods (8), a pair of connecting rod connection sliding columns (9), a pair of special-shaped displacement blocks (10), a pair of special-shaped block upper sliding grooves (11), a filter element body (12), a plurality of auxiliary pressure springs (13), a supporting core plate (14) and a pair of cover pressure half rings (15); The displacement connection plate (6) is installed in the filter element bearing housing (1) through a slide rail, the displacement clamping column (7) is installed on the displacement connection plate (6), a pair of connection extension connecting rods (8) are respectively connected to the displacement clamping column (7), and a pair of connection extension connecting rods (8) are respectively sleeved on a pair of connecting rod connection sliding columns (9), a pair of special-shaped displacement blocks (10) are respectively fixedly installed in the filter element bearing housing (1) through a rotating shaft, and a pair of special-shaped displacement blocks (10) are respectively provided with a pair of special-shaped block upper sliding grooves (11), and a pair of connecting rod connection sliding columns (9) are respectively Inserted in a pair of sliding grooves (11) on the special blocks, the filter element body (12) is installed in the filter element bearing shell (1), and the filter element body (12) is movably connected to the supporting core plate (14), a plurality of auxiliary pressure springs (13) are respectively installed on the inner bottom of the filter element bearing shell (1), and a plurality of auxiliary pressure springs (13) are respectively connected to the supporting core plate (14), a pair of cover pressure half rings (15) are respectively installed on a pair of special-shaped displacement blocks (10), and a pair of cover pressure half rings (15) are respectively movably connected to the filter element body (12).

2. A duplex filter according to claim 1, characterized in that: The external locking assembly comprises: a native fitting block (16), an external fitting block (17), a fitting block bolt body (18) and a clamping column slide groove (19); The native bonding block (16) is mounted on the filter element bearing shell (1) via a rotating shaft, the filter element bearing shell (1) is provided with the clamping column slide groove (19), the external bonding block (17) is movably connected to the native bonding block (16), the block plug body (18) is movably inserted into the native bonding block (16) and the external bonding block (17), respectively, and the displacement clamping column (7) is inserted into the clamping column slide groove (19).

3. A duplex filter according to claim 2, characterized in that: A spherical valve is arranged in the docking drainage pipe (2).

4. A duplex filter according to claim 3, characterized in that: The replacement cover plate (5) is provided with a coupling thread.

5. A duplex filter according to claim 4, characterized in that: An auxiliary sealing layer is provided on the displacement clamping column (7).

6. A duplex filter according to claim 5, characterized in that: The supporting core plate (14) is provided with a fitting slot.

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