Duplex filter capable of quickly replacing filter assembly

Abstract

The duplex filter comprises two sets of supports, two sets of rotating wheels and two sets of filter cartridges, rotating wheel shafts are arranged in rotating shaft holes of the rotating wheels in an inserted mode, and rotating wheel discs are embedded in arc-shaped groove frames of the supports. The filter cartridge is inserted into the rotating wheel insertion hole, so that the first quick connector sub-body and the second quick connector sub-body are respectively opposite to one quick connector main body; the two groups of second connecting frames are connected through a three-way pipeline and are communicated with the quick coupling matrix; and the two groups of first connecting frames are connected through a three-way pipeline and are communicated with the quick coupling matrix.

Description

Technical Field

[0001] The present application relates to the technical field of filter equipment, and in particular to a duplex filter with quickly replaceable filter components. Background Art

[0002] In the application of water pipelines, filters are indispensable equipment for media filtering. Most existing filters use the method of stopping the machine to replace the filter element to clean the filter to ensure its filtering effect. This replacement method requires the pipeline equipment to be shut down, which has a great impact on the pipeline system and production. In response to this, a filter that can be double-switched has been derived, such as the application number 201210448210.8 and the application name of the double-switching filter. The filter includes a single-cylinder filter, and the single-cylinder filter includes a water inlet and a water outlet; the double-switching filter is composed of two single-cylinder filters, the water inlet between the two single-cylinder filters is connected by a pipeline, and the water outlet between the two single-cylinder filters is connected by a pipeline; a three-way valve is provided on the connecting pipeline of the water inlet between the two single-cylinder filters; a three-way valve is provided on the connecting pipeline of the water outlet between the two single-cylinder filters. The present invention adopts an associated combination structure of two single-cylinder filters and connects them with a three-way valve. In this way, when the filter needs to be cleaned, the three-way valve is turned to disconnect the water inlet and outlet of the single-cylinder filter that needs to be cleaned, and the single-cylinder filter can be cleaned separately, while the other single-cylinder filter can be used normally, thus ensuring that the industrial pipeline is in a continuous working state.

[0003] Although the filter in the above prior art solves the problem that the single-tube filter needs to be shut down for disassembly and replacement, which affects the pipeline system and production, the filter still has the following problems:

[0004] 1. The equipment is connected by a valve body. When the pipeline is switched, another filter needs to be manually removed for cleaning. If the other filter also has an abnormality at this time, the pipeline cannot be quickly installed;

[0005] 2. The filter is replaced manually, and there are only two filter cartridges. For some pipeline systems that require rapid replacement of the filter mesh, the filter mesh cannot be replaced quickly. Summary of the invention

[0006] In order to solve or partially solve the problems existing in the related art, the present application provides a double filter with a quickly replaceable filter assembly, which can quickly replace the filter assembly while also having other filters available for emergency use.

[0007] The present application discloses a duplex filter with a filter assembly that can be quickly replaced, comprising:

[0008] The bracket comprises a base and an arc-shaped slot frame, a rotating wheel frame, a first connecting frame, a driving frame and a second connecting frame arranged on the base; the rotating wheel frame and the driving frame are fixedly arranged on both sides of the arc-shaped slot frame, the first connecting frame and the second connecting frame are connectedly arranged on both sides of the arc-shaped slot frame, a rotating wheel shaft is transferred between the rotating wheel frame and the driving frame, one end of the rotating wheel shaft is connectedly arranged with a groove wheel, a driving dial is transferred on the driving frame, a driving lever for driving the groove wheel to rotate is fixedly arranged on the driving dial, a first fastening telescope and a second fastening telescope are respectively arranged on the first connecting frame and the second connecting frame, a quick joint mother body is transferred on the first connecting frame and the second connecting frame, the telescopic ends of the two fastening telescopes are transferred with a connecting rod, and one end of the connecting rod is transferred to one side of the first quick joint mother body; a first top extension telescope is arranged on one side of the rotating wheel frame, and a second top extension telescope is arranged on one side of the second connecting frame; and

[0009] The rotating wheel comprises a triangular column and a wheel disc, wherein the wheel disc is fixedly arranged in the middle of the triangular column; a rotating shaft hole is configured at the center of the triangular column, and at least three plug holes are configured around the rotating shaft hole; and

[0010] The filter cartridge is configured in a cylindrical shape, one end of the filter cartridge is connected to a first quick connector sub-body through a connecting pipe; the other end of the filter cartridge is connected to a second quick connector sub-body, the first quick connector sub-body and the second quick connector sub-body face the same side; and

[0011] pipeline;

[0012] Among them, two groups of brackets and wheels are symmetrically arranged, the wheel shaft is inserted in the shaft hole, the wheel disc is embedded in the arc-shaped groove frame, the filter cartridge is inserted in the insertion hole and makes the first quick connector sub-body and the second quick connector sub-body face a quick connector mother body respectively; the two groups of second connecting frames are connected and connected to the quick connector mother body through a three-way pipe; the two groups of first connecting frames are connected and connected to the quick connector mother body through a three-way pipe.

[0013] Optionally, the rotary wheel frame is configured to be hook-shaped and only occupies the area of ​​an end surface of the filter cartridge.

[0014] Optionally, an arc-shaped positioning groove is constructed in the insertion hole, and a circular positioning rod is constructed on the filter cartridge, and the positioning rod is slidably arranged in the positioning groove.

[0015] Optionally, limiting grooves are constructed on the three cylindrical surfaces of the triangular column, a limiting expansion frame is fixedly provided on the upper section of one side of the arc-shaped groove frame, a limiting expansion device is provided on the limiting expansion frame, and the limiting expansion device is clamped in the limiting groove when extending.

[0016] Optionally, the filter cartridge includes a lower shell, an upper shell, a buckle, and a filter element;

[0017] Among them, a water inlet is provided at one end of the lower shell, and the first quick connector sub-body is provided on the water inlet; a water outlet is provided at one end of the upper shell, and the connecting pipe is connected to the water outlet. A filter element is provided on the upper shell, and the filter element is inserted into the lower shell. The lower shell and the upper shell are abutted and sealed by snap fastening, and the positioning rod is fixedly provided on the lower shell.

[0018] Optionally, the lower shell is four to five times longer than the upper shell.

[0019] Optionally, the quick connector sub-body and the quick connector mother body form a quick connector, and the quick connector is a rotary quick connector.

[0020] Optionally, the pipeline includes an inlet pipe, an outlet pipe, a solenoid valve and a pressure sensor, and the inlet pipe and the outlet pipe are configured as a three-way pipe, wherein the solenoid valve is provided on the pipe body connected to the filter cartridge, and the pressure sensor is provided on the other pipe body.

[0021] Optionally, an arc-shaped notch is constructed on the driving dial, the driving lever is located at the center of the notch, the groove wheel is set to be an equilateral triangle shape, the groove wheel is constructed with a slide groove, and the driving lever is constructed with a circular shaft and is slidably connected in the slide groove of the groove wheel.

[0022] Optionally, all the moving parts adopt electronic control components and are connected to a controller of the cylinder.

[0023] The technical solution provided by this application may have one of the following beneficial effects:

[0024] The device uses two sets of double filters, and at least three filter cartridges are arranged on each set of filters. Electric or pneumatic non-manual quick replacement is achieved through the relevant telescoping devices and quick connectors on the rotating wheel and the bracket. If any filter cartridge has an abnormality, it can be quickly replaced without stopping the machine. On the other hand, there are three independent filter cartridges in a set of filters in the present application, and the mesh size can be quickly replaced according to different filtration mesh size requirements.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0027] Figure 1 It is a front view of an embodiment of the present application;

[0028] Figure 2 is a top view of an embodiment of the present application;

[0029] Figure 3 is a cross-sectional view taken along the line AA shown in an embodiment of the present application;

[0030] Figure 4 It is a structural schematic diagram shown in an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of a bracket structure shown in an embodiment of the present application;

[0032] Figure 6 is a top view of a bracket shown in an embodiment of the present application;

[0033] Figure 7 is a schematic diagram of the connection structure between the rotor and the filter cartridge shown in the embodiment of the present application;

[0034] Figure 8 is a front view of the connection between the rotor and the filter cartridge shown in the embodiment of the present application;

[0035] Fig. 9 is a schematic diagram of the rotating wheel structure shown in an embodiment of the present application;

[0036] Fig.10 is a front view of a rotating wheel shown in an embodiment of the present application;

[0037] Fig.11 It is a schematic diagram of the filter cartridge structure shown in the embodiment of the present application;

[0038] Fig.12 is a front cross-sectional view of a filter cartridge shown in an embodiment of the present application;

[0039] Fig.13 is a top view of the filter cartridge shown in the embodiment of the present application;

[0040] Reference numerals:

[0041] 1. Bracket;

[0042] 11. arc slot frame; 12. limit telescopic frame; 13. limit telescopic device; 14. rotating wheel frame; 15. first connecting frame; 16. driving frame; 17. second connecting frame; 18. first fastening telescopic device; 19. driving dial; 191. driving lever; 110. first top extension telescopic device; 111. second fastening telescopic device; 112. connecting rod; 113. quick connector mother body; 114. base; 115. rotating wheel shaft; 1151. groove wheel; 116. second top extension telescopic device;

[0043] 2. Rotating wheel; 21. Triangular column; 22. Wheel; 23. Socket; 24. Positioning slide; 25. Limiting groove; 26. Rotating shaft hole;

[0044] 3. Filter cartridge; 31. Lower housing; 32. Upper housing; 33. Buckle; 34. Connecting pipe; 35. First quick connector sub-body; 36. Second quick connector sub-body; 37. Positioning rod; 38. Filter element;

[0045] 4. Pipeline; 41. Water inlet pipe; 42. Water outlet pipe; 43. Solenoid valve; 44. Pressure sensor. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0047] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0048] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In order to solve the above problems, an embodiment of the present application provides a double filter with a quickly replaceable filter assembly. The technical solution of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0051] like Figures 1 to 13 The double filter with a quick-change filter assembly shown in the figure comprises four major connection mechanisms: a bracket 1, a rotating wheel 2, a filter cartridge 3 and a pipe 4, wherein the bracket 1 is a frame for supporting the movement of the entire device. Specifically, in the present application, the bracket 1 is as follows Figure 5 and Figure 6 As shown, the bracket 1 includes a base 114 and an arcuate slot frame 11, a rotating wheel frame 14, a first connecting frame 15, a driving frame 16, and a second connecting frame 17 arranged on the base; the arcuate slot frame 11 is a semicircular slot body, and the rotating wheel frame 14 and the driving frame 16 are fixedly arranged on both axial sides of the arcuate slot frame 11, and the first connecting frame 15 and the second connecting frame 17 are connected on both axial sides of the arcuate slot frame 11, and the first connecting frame 15 and the second connecting frame 17 are respectively located on one side of the rotating wheel frame 14 and the driving frame 16. A rotating wheel shaft 115 is provided between the rotating wheel frame 14 and the driving frame 16, one end of which is connected to a groove wheel 1151, a driving dial 19 is provided on the driving frame 16, a driving lever 191 for driving the groove wheel 1151 to rotate is fixedly provided on the driving dial 19, a first tightening retractor 18 and a second tightening retractor 111 are provided on the first connecting frame 15 and the second connecting frame 17, respectively, a quick joint mother body 113 is provided on the first connecting frame 15 and the second connecting frame 17, and a connecting rod 112 is provided at the telescopic ends of the two tightening retractors, and one end of the connecting rod 112 is transferred to one side of the first quick joint mother body 113; a first top extension retractor 110 is provided on one side of the rotating wheel frame 14, and a second top extension retractor is provided on one side of the second connecting frame 17.

[0052] In this application, the runner 2 is as follows Fig. 9 and Fig.10 As shown, it includes a triangular column 21 and a wheel disc 22 , wherein the wheel disc 22 is fixedly arranged in the middle of the triangular column 21 ; a rotating shaft hole 26 is configured at the center of the triangular column 21 , and at least three insertion holes 23 are configured around the rotating shaft hole 26 .

[0053] The filter cartridge 3 of the present application is as follows Fig.10 , Fig.11 and Fig.12 As shown; the filter cartridge 3 is arranged in a cylindrical shape to facilitate plug-in replacement, and one end of the filter cartridge 3 is connected to a first quick connector sub-body 35 via a connecting tube 34; the other end of the filter cartridge 3 is connected to a second quick connector sub-body 36, and the first quick connector sub-body 35 and the second quick connector sub-body 36 face the same side.

[0054] In the application, the bracket 1 and the impeller 2 are symmetrically arranged in two groups and connected through a pipe 4 to form a double filter. Different from the existing double filter, in this application, the impeller shaft 115 is inserted in the shaft hole 26, the wheel 22 is embedded in the arc-shaped slot frame 11, and the filter cartridge 3 is inserted in the socket 23 so that the first quick connector sub-body 35 and the second quick connector sub-body 36 are respectively facing a quick connector mother body 113; the two groups of second connecting frames 17 are connected and connected to the quick connector mother body 113 through a three-way pipe 4; the two groups of first connecting frames 15 are connected and connected to the quick connector mother body 113 through a three-way pipe 4. All the action devices of this application are uniformly connected to a controller for automatic control.

[0055] Thus, in the present application, the rotating wheel 2 as a whole is connected to the arc-shaped slot frame 11 through the rotating wheel shaft 115 and is limited by the wheel plate 22 and the arc-shaped slot frame 11 to prevent the rotating wheel 2 from sliding in the axial direction. The entire rotating wheel 2 is driven by a motor to rotate the driving dial 19 (the motor can be directly embedded in the driving frame 16, or the driving dial 19 can be driven by other transmission components or mechanisms). During the rotation process, every time the driving dial 19 rotates one circle, the driving lever 191 on the driving dial 19 moves the slot wheel 1151 once to rotate 120 degrees to replace a filter cartridge 3. During the entire replacement process, the filter cartridge 3 is inserted into the insertion hole 23 of the rotor 2 and changes its position as the rotor 2 rotates. When a filter cartridge 3 rotates with the rotor 2 and stops, the first quick connector sub-body 35 and the second quick connector sub-body 36 of the filter cartridge 3 are directly opposite to the quick connector mother body 113 on the first connecting frame 15 and the second connecting frame 17, and the first extension retractor 110 extends to push the filter cartridge 3 out for a distance and make the first quick connector sub-body 35 and the second quick connector sub-body 36 abut against the quick connector mother body 113, and the first fastening retractor 18 and the second fastening retractor 111 extend. The first and second fastening and retracting devices 18 and 111 are retracted to drive the quick connector body 113 to rotate and lock the sub-connector to seal, thereby completing the connection of the filter cartridge 3 to the pipeline; when the filter cartridge 3 needs to be replaced, the first fastening and retracting device 18 and the second fastening and retracting device 111 are retracted to drive the quick connector body 113 to rotate and unlock the sub-connector, the first extending and retracting device 110 is retracted, and the second extending and retracting device 116 is pushed out to push the filter cartridge 3 back so that the quick connector is separated from the pipeline system, and then the dial 19 is driven to rotate to replace another filter, and the above-mentioned locking and disengagement are carried out to complete the replacement. During the replacement process, the dual-connection system can realize quick replacement without stopping the machine.

[0056] In the present application, two sets of filters are connected in pairs, and at least three filter cartridges are arranged on each set of filters. The relevant telescopic devices and quick connectors on the rotating wheel and the bracket are used to realize electric or pneumatic non-manual quick replacement. If any filter cartridge has an abnormality, it can be quickly replaced without stopping the machine. On the other hand, there are three independent filter cartridges in one set of filters in the present application, and the mesh number can be quickly replaced according to different filtering mesh number requirements.

[0057] In one embodiment, since changes in water pressure will affect changes in filtering accuracy, in order to ensure accuracy while ensuring hydraulic performance, different mesh sizes can be set in advance and a suitable filter cartridge can be selected according to the water pressure.

[0058] In one embodiment, the filter cartridge 3 needs to be pulled out and replaced with a new one after rotation so as not to affect the replacement of the filter. Therefore, in order to facilitate the extraction and insertion of the filter cartridge 3, Figure 5 As shown, the rotor frame 14 is configured in a hook shape and occupies only the area of ​​an end surface of the filter cartridge 3 .

[0059] In one embodiment, in order to prevent the filter cartridge 3 from axially rotating during the insertion process, as shown in FIG. Figure 7 , Fig. 9 and Fig.11 As shown, an arc-shaped positioning slot 24 is constructed in the insertion hole 23 , and a circular positioning rod 37 is constructed on the filter cartridge 3 , and the positioning rod 37 is slidably disposed in the positioning slot 24 .

[0060] In one embodiment, Figure 4 , Fig. 9 and Fig.10 As shown, in order to limit the rotation of the rotating wheel 2, a limiting groove 25 is constructed on the three cylindrical surfaces of the triangular column 21, a limiting telescopic frame 12 is fixedly provided on the upper section of one side of the arc-shaped slot frame 11, and a limiting telescopic device 13 is provided on the limiting telescopic frame 12. The limiting telescopic device 13 is clamped in the limiting groove 25 when extending.

[0061] In one embodiment, Fig.10 , Fig.11 and Fig.12 As shown, the present application provides a filter cartridge 3 that is convenient for plugging, replacing and cleaning, including a lower shell 31, an upper shell 32, a buckle 33, and a filter element 38;

[0062] Among them, one end of the lower shell 31 is provided with a water inlet, and the first quick connector sub-body 35 is provided on the water inlet; one end of the upper shell 32 is provided with a water outlet, and the connecting pipe 34 is connected to the water outlet. The upper shell 32 is provided with a filter element 38, and the filter element 38 is inserted into the lower shell 31. The lower shell 31 and the upper shell 32 are abutted or fastened and sealed by the buckle 33. The positioning rod 37 is fixedly provided on the lower shell 31, and the length of the lower shell 31 is four to five times that of the upper shell 32. In this way, the filter cartridge 3 is convenient for quick plug-in replacement on the rotor 2, and is also convenient for disassembly and cleaning after removal.

[0063] In one embodiment, in order to facilitate the connection and fastening of the quick connector, the quick connector sub-body and the quick connector mother body form a quick connector, and the quick connector is a rotary quick connector.

[0064] In one embodiment, the pipeline 4 includes an inlet pipe 41, an outlet pipe 42, a solenoid valve 43 and a pressure sensor 44. The inlet pipe 41 and the outlet pipe 42 are configured as a three-way pipe, wherein the solenoid valve 43 is provided on the pipe body connected to the filter cartridge 3, and the pressure sensor 44 is provided on the other pipe body.

[0065] In one embodiment, in order to facilitate the positioning of the rotation angle of the rotating wheel 2 from the driving point, as shown in FIG. Figure 1 As shown, the driving dial 19 is constructed with an arc-shaped notch, the driving lever 191 is located at the center of the notch, the groove wheel 1151 is set to an equilateral triangle shape, the groove wheel 1151 is constructed with a slide groove, and the driving lever 191 is constructed with a circular shaft and is slidably connected in the slide groove of the groove wheel 1151. Every time the driving dial 19 rotates one circle, the driving lever 191 on the driving dial 19 moves the groove wheel 1151 once and rotates 120 degrees to replace a filter cartridge 3.

[0066] In one embodiment, in order to facilitate automatic control, all the moving parts use electronic control parts and are connected to a controller of the cartridge. The moving parts include various telescopes, solenoid valves and drive motors. In this way, when the pressure sensor 44 detects that the pressure is abnormal or reaches the replacement set value, the filter cartridge can be automatically and quickly replaced.

[0067] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0069] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A double filter with a quick-replaceable filter assembly, characterized in that: include: The support (1) comprises a base (114) and an arc-shaped slot frame (11) arranged on the base, a rotating wheel frame (14), a first connecting frame (15), a driving frame (16), and a second connecting frame (17); the rotating wheel frame (14) and the driving frame (16) are fixedly arranged on both sides of the arc-shaped slot frame (11); the first connecting frame (15) and the second connecting frame (17) are connected and arranged on both sides of the arc-shaped slot frame (11); a rotating wheel shaft (115) is arranged between the rotating wheel frame (14) and the driving frame (16); one end of the rotating wheel shaft (115) is connected and arranged with a groove wheel (1151); a driving dial (19) is arranged on the driving frame (16); the driving dial A driving lever (191) for driving a groove wheel (1151) to rotate is fixedly arranged on the disk (19); a first tightening retractor (18) and a second tightening retractor (111) are respectively arranged on the first connecting frame (15) and the second connecting frame (17); a quick joint mother body (113) is respectively connected to the first connecting frame (15) and the second connecting frame (17); a connecting rod (112) is connected to the telescopic ends of the two tightening retractors; one end of the connecting rod (112) is connected to one side of the first quick joint mother body (113); a first top-extending retractor (110) is arranged on one side of the rotating wheel frame (14); and a second top-extending retractor is arranged on one side of the second connecting frame (17); and A rotating wheel (2); the rotating wheel (2) comprises a triangular column (21) and a wheel disc (22), wherein the wheel disc (22) is fixedly arranged in the middle of the triangular column (21); a rotating shaft hole (26) is configured at the center of the triangular column (21), and at least three insertion holes (23) are configured around the rotating shaft hole (26); and A filter cartridge (3); the filter cartridge (3) is arranged in a cylindrical shape, one end of the filter cartridge (3) is connected to a first quick connector sub-body (35) via a connecting pipe (34); the other end of the filter cartridge (3) is connected to a second quick connector sub-body (36), the first quick connector sub-body (35) and the second quick connector sub-body (36) face the same side; and Pipeline (4); The bracket (1) and the rotating wheel (2) are symmetrically arranged in two groups, the rotating wheel shaft (115) is inserted into the rotating shaft hole (26), the wheel disc (22) is embedded in the arc-shaped slot frame (11), the filter cartridge (3) is inserted into the insertion hole (23) and the first quick connector sub-body (35) and the second quick connector sub-body (36) are respectively opposite to the one quick connector mother body (113); the two groups of second connecting frames (17) are connected and communicated with the quick connector mother body (113) through a three-way pipe (4); the two groups of first connecting frames (15) are connected and communicated with the quick connector mother body (113) through a three-way pipe (4).

2. A duplex filter with a quickly replaceable filter assembly according to claim 1, characterized in that: The rotating wheel frame (14) is configured in a hook shape and occupies only the area of ​​an end surface of a filter cartridge (3).

3. A duplex filter with a quickly replaceable filter assembly according to claim 1, characterized in that: An arc-shaped positioning slot (24) is constructed in the insertion hole (23), and a circular positioning rod (37) is constructed on the filter cartridge (3), and the positioning rod (37) is slidably arranged in the positioning slot (24).

4. A duplex filter with a quickly replaceable filter assembly according to claim 1, characterized in that: The three cylindrical surfaces of the triangular column (21) are configured with limit slots (25); a limit telescopic frame (12) is fixedly provided on the upper section of one side of the arc-shaped slot frame (11); a limit telescopic device (13) is provided on the limit telescopic frame (12); and the limit telescopic device (13) is clamped in the limit slot (25) when extended.

5. A duplex filter with a quickly replaceable filter assembly according to claim 3, characterized in that: The filter cartridge (3) comprises a lower shell (31), an upper shell (32), a buckle (33), and a filter element (38); One end of the lower shell (31) is provided with a water inlet, and the first quick connector sub-body (35) is arranged on the water inlet; one end of the upper shell (32) is provided with a water outlet, and the connecting pipe (34) is connected to the water outlet; the filter element (38) is arranged on the upper shell (32), and the filter element (38) is inserted into the lower shell (31); the lower shell (31) and the upper shell (32) are abutted or fastened and sealed by a buckle (33); and the positioning rod (37) is fixedly arranged on the lower shell (31).

6. A duplex filter with a quickly replaceable filter assembly according to claim 5, characterized in that: The length of the lower shell (31) is four to five times that of the upper shell (32).

7. A duplex filter with a quickly replaceable filter assembly according to claim 1, characterized in that: The quick connector sub-body and the quick connector mother body form a quick connector, and the quick connector is a rotary quick connector.

8. The duplex filter with a quickly replaceable filter assembly according to claim 1, characterized in that: The pipeline (4) comprises a water inlet pipe (41), a water outlet pipe (42), a solenoid valve (43) and a pressure sensor (44); the water inlet pipe (41) and the water outlet pipe (42) are arranged as a three-way pipe, wherein the solenoid valve (43) is arranged on the pipe body connected to the filter cartridge (3), and the pressure sensor (44) is arranged on the other pipe body.

9. The duplex filter with a quickly replaceable filter assembly according to claim 1, characterized in that: The driving dial (19) is provided with an arc-shaped notch, the driving lever (191) is located at the center of the notch, the groove wheel (1151) is arranged in an equilateral triangle shape, the groove wheel (1151) is provided with a slide groove, and the driving lever (191) is provided with a circular shaft and is slidably connected in the slide groove of the groove wheel (1151).

10. A duplex filter with a quickly replaceable filter assembly according to any one of claims 1 to 9, characterized in that: All the moving parts are electronically controlled and connected to a controller.

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