Commercial water tank filtering device

Abstract

The utility model relates to the technical field of kitchen utensils, in particular to a commercial water tank filtering device. Comprising a workbench and a plurality of water tanks, the water tanks are embedded in the workbench, the bottoms of the water tanks are provided with filtering mechanisms for filtering solid impurities, each filtering mechanism comprises a filter cartridge and a filter element, the filter element is arranged in the middle of the filter cartridge, and the bottom of the filter element is connected with a drainage pipe facilitating water drainage. According to the commercial water tank filtering device provided by the utility model, due to the design of the switching assembly, an operator only needs to rotate the knob to realize the switching between two working states of water storage and filtering drainage of the water tank, and due to the design of the rotating assembly, solid impurities blocked in the filtering holes are further cleaned; therefore, cleaning inconvenience caused by the fact that solid impurities are blocked in the filtering holes is avoided, and the cleaning workload of workers is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a commercial water tank filtering device. Background Art

[0002] Commercial sinks are essential work equipment in modern kitchens. People usually wash food ingredients and clean tableware in commercial sinks.

[0003] Existing commercial water tank filtering devices often need to be equipped with a cover for blocking in order to switch between the water tank water storage and drainage working states. When the cover is not in use, the staff often puts the cover in the groove on the commercial water tank for storage. However, in actual use, we found that the cover placed in the groove is very easy to fall out of the groove due to accidental contact by the staff and fall into the water tank or the ground. If there are dishes being washed in the sink, the fallen cover is very easy to fall on the dishes, causing unnecessary damage to the dishes, and the practical performance of the device is poor.

[0004] On the other hand, most of the commercial sink filtering devices in the prior art filter solid impurities carried by kitchen utensils or food ingredients through filter holes, thereby preventing the solid impurities from directly flowing into the drain pipe and causing blockage. However, in actual use, we found that when the size of the solid impurities is small, they are often blocked in the filter holes under the push of the water flow, resulting in the staff often needing to manually clean the solid impurities blocked in the filter holes when cleaning the solid impurities in the filter net, which is inconvenient to use.

[0005] To this end, we design a commercial water tank filtering device to provide another technical solution to the above technical problems. Utility Model Content

[0006] Based on this, it is necessary to provide a commercial water tank filtering device that is easy to switch the working state of the water tank and easy to clean in order to solve the above technical problems.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A commercial water tank filtering device comprises a workbench and a water tank, wherein the water tanks are provided in plurality and are all embedded in the workbench, and the bottoms of the plurality of water tanks are provided with a filtering mechanism for filtering solid impurities, and the filtering mechanism comprises a filter cartridge and a filter element, wherein the filter element is provided in the middle of the filter cartridge, and the bottom of the filter element is connected with a drain pipe for facilitating water discharge;

[0009] The filter element comprises a filter element 1 and a filter element 2, the filter element 2 is rotatably arranged inside the filter element 1, the filter element 1 and the filter element 2 are evenly provided with a plurality of filter holes for filtering solid impurities, the filter element 1, the filter element 2 and the bottom of the filter cartridge are all provided with through holes matching the drain pipe, the drain pipe is fixedly connected to the bottom end of the through hole, and the filter element 1 and the filter element 2 are provided with a switching component for controlling the working state of the filter element;

[0010] The switching assembly includes a spherical protrusion and an arc-shaped spring piece. The spherical protrusion is provided in plurality and fixedly arranged on a side of the filter element two opposite to the filter element one. A plurality of mounting holes for facilitating the installation of the arc-shaped spring piece are provided on a side of the filter element one opposite to the filter element two. The arc-shaped spring piece is fixedly arranged in the mounting hole. The spherical protrusion abuts against one side of the arc-shaped spring piece. The filter element two is provided with a square hole for facilitating the abutment of the arc-shaped spring piece. A blocking cover for sealing the top of the filter element two is fixedly arranged at the top of the filter element two. A knob for facilitating the operator to control the rotation angle of the filter element two is fixedly arranged at the top of the blocking cover.

[0011] Preferably, the filter element is provided with a rotating assembly for facilitating the rotation of the filter element, the rotating assembly comprises a plurality of arc-shaped clamping blocks fixedly provided at a bottom end of the filter element, a torsion spring is clamped at the bottom end of the arc-shaped clamping block, a mounting groove matching the torsion spring is provided on the workbench, and the torsion spring is fixedly provided in the mounting groove;

[0012] The bottom end circumferential side of the filter element 2 is rotatably connected with a plurality of balls 1, the filter element 1 is provided with an annular limiting groove 1 matching the ball 1, the filter element 2 is movably clamped in the filter element 1 through the plurality of balls 1 rotatably connected through its bottom end, the bottom end circumferential side of the filter element 1 is rotatably connected with a plurality of balls 2, the filter cartridge is provided with an annular limiting groove 2 matching the ball 2, and the filter element 1 is movably clamped in the filter cartridge.

[0013] Preferably, the filter cartridge comprises a filter cartridge 1 and a filter cartridge 2, the filter cartridge is provided with a clamping assembly for limiting the relative position of the filter cartridge 1 and the filter cartridge 2, the clamping assembly comprises a plurality of guide plug-in blocks fixedly arranged on the peripheral side of the bottom end of the filter cartridge 2, the filter cartridge 1 is provided with a plurality of guide plug-in grooves matching the guide plug-in blocks, the bottom ends of the guide plug-in grooves are connected with L-shaped limit grooves for limiting the rotational position of the guide plug-in blocks;

[0014] A plurality of columnar blocks are fixedly arranged at the bottom end of the filter cartridge 2, and the bottom end of the columnar blocks is rotatably connected to ball roller 3. An arc-shaped limiting groove matching the columnar blocks and ball roller 3 is provided on the filter cartridge 1, and a columnar clamping groove for limiting the rotation position of the filter cartridge 2 is provided at the end of the arc-shaped limiting groove. A handle is rotatably connected to the top end of the filter cartridge 2 for easy control by the operator.

[0015] Preferably, the top of the bottom of the second filter cartridge is arranged in a conical inclined surface with a high inside and a low outside.

[0016] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0017] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0018] 1. The utility model provides a commercial water tank filtering device. Through the design of the switching component, the operator only needs to turn the knob to switch between the two working states of the water tank water storage and filtering and drainage. This abandons the switching method of the traditional commercial water tank that needs to use a cover to block the water tank, thereby improving the practical performance of the device.

[0019] 2. The utility model provides a commercial water tank filter device, which further cleans the solid impurities blocked in the filter holes through the design of the rotating component, thereby avoiding the inconvenience of cleaning caused by the solid impurities blocking the filter holes, effectively reducing the cleaning workload of the staff and improving the convenience of cleaning the device.

[0020] 3. The utility model provides a commercial water tank filter device, which, through the design of the snap-on assembly, allows the operator to separate filter cartridge one from filter cartridge two by simply pulling up and turning the handle when cleaning the solid impurities inside the filter cartridge, thereby further improving the convenience of cleaning the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the axial structure of the utility model;

[0023] Figure 2 It is a half-section structural schematic diagram of the workbench of the utility model;

[0024] Figure 3 This is a schematic diagram of the split structure of the filter cartridge and the filter element of the utility model;

[0025] Figure 4 This is a schematic diagram of the matching structure of the filter element 1 and the filter element 2 of the utility model;

[0026] Figure 5 For the utility model Figure 4 Schematic diagram of the structure at A in the middle;

[0027] Figure 6 It is a structural schematic diagram of the rotating assembly of the utility model;

[0028] Figure 7 It is a schematic diagram of the split structure of the filter cartridge 1 and the filter cartridge 2 of the utility model;

[0029] Figure 8 It is a schematic diagram of the matching structure of the clamping assembly of the utility model.

[0030] In the figure: 1. workbench; 2. sink; 3. filter cartridge; 4. filter element; 5. drain pipe; 6. filter element 1; 7. filter element 2; 8. filter hole; 9. through hole; 10. spherical bump; 11. arc-shaped spring; 12. mounting hole; 13. square hole; 14. plugging cover; 15. knob; 16. arc-shaped clamping block; 17. torsion spring; 18. mounting groove; 19. ball bearing 1; 20. annular limit groove 1; 21. ball bearing 2; 22. annular limit groove 2; 23. filter cartridge 1; 24. filter cartridge 2; 25. guide plug-in block; 26. guide plug-in groove; 27. L-shaped limit groove; 28. columnar block; 29. ​​ball bearing 3; 30. arc-shaped limit groove; 31. columnar slot; 32. handle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] Embodiment 1

[0033] Reference Figure 1-6 A commercial water tank filtering device comprises a workbench 1 and a water tank 2. The water tanks 2 are provided in plurality and are all embedded in the workbench 1. The bottoms of the plurality of water tanks 2 are provided with a filtering mechanism for filtering solid impurities. The filtering mechanism comprises a filter cartridge 3 and a filter element 4. The filter element 4 is provided in the middle of the filter cartridge 3. The bottom of the filter element 4 is connected with a drain pipe 5 for facilitating water discharge.

[0034] The filter element 4 includes a filter element 1 6 and a filter element 2 7, the filter element 2 7 is rotatably arranged inside the filter element 1 6, and multiple groups of filter holes 8 for filtering solid impurities are evenly distributed on the filter element 1 6 and the filter element 2 7. The bottoms of the filter element 1 6, the filter element 2 7 and the filter cartridge 3 are all provided with through holes 9 matching the drain pipe 5, and the drain pipe 5 is fixedly connected to the bottom end of the through hole 9. The filter element 1 6 and the filter element 2 7 are provided with a switching component for controlling the working state of the filter element 4;

[0035] The switching assembly includes a spherical protrusion 10 and an arc-shaped spring piece 11. The spherical protrusion 10 is provided in plurality and fixedly arranged on the side of the filter element 2 7 opposite to the filter element 1 6. The filter element 1 6 is provided with a plurality of mounting holes 12 on the side opposite to the filter element 2 7 for facilitating the installation of the arc-shaped spring piece 11. The arc-shaped spring piece 11 is fixedly arranged in the mounting hole 12. The spherical protrusion 10 abuts against one side of the arc-shaped spring piece 11. The filter element 2 7 is provided with a square hole 13 for facilitating the abutment of the arc-shaped spring piece 11. The top of the filter element 2 7 is fixedly provided with a The plugging cover 14 for sealing the top of the filter element 2 7 is provided with a knob 15 on the top of the plugging cover 14 for the operator to control the rotation angle of the filter element 2 7. Specifically, in the utility model, through the design of the switching component, the operator only needs to turn the knob 15 to switch between the two working states of the water tank 2, i.e., water storage and filtering and drainage, thereby abandoning the switching method of the traditional commercial water tank 2, i.e., the need to use a cover to seal the water tank 2, effectively avoiding the phenomenon that the cover is accidentally touched and dropped by the staff, thereby damaging the tableware, and improving the practical performance of the device;

[0036] Through the design of the filter element 1 6, the filter element 2 7 and the filter hole 8, the solid impurities carried by the kitchen utensils or food washing are filtered, thereby preventing the solid impurities from directly flowing into the drain pipe 5 and causing blockage, so that the drain pipe 5 always maintains good drainage performance;

[0037] The design of the spherical protrusion 10 and the arc-shaped spring sheet 11 limits the relative position of the filter element 1 6 and the filter element 2 7, so that the operator can switch between the two working states of water storage and filtering and drainage of the water tank 2 by simply turning the knob 15, which effectively improves the convenience of using the device; the design of the plugging cover 14 blocks the top of the filter element 2 7, thereby preventing solid impurities in the water tank 2 from directly entering the drain pipe 5 through the top of the filter element 2 7, thereby ensuring the normal use of the filtering device;

[0038] When the working state of the water tank 2 needs to be switched, the staff rotates the knob 15 to rotate the filter element 2 7 in the filter element 1 6, and drives the spherical protrusion 10 to squeeze the arc-shaped spring sheet 11, so that the spherical protrusion 10 passes over the arc-shaped spring sheet 11 and is connected to one side of the arc-shaped spring sheet 11, thereby blocking or unblocking the filter hole 8, and completing the switching of the water tank 2 between water storage and drainage.

[0039] It should be noted that, in the present invention, the size of the filter hole 8 on the filter element 2 7 is slightly smaller than the size of the filter hole 8 on the filter element 1 6. Through this design, the solid impurities in the water tank 2 are further blocked, so that most of the solid impurities in the water tank 2 are blocked on the filter hole 8 on the filter element 1 6, further enhancing the anti-blocking protection of the drain pipe 5.

[0040] Reference Figure 3 and Figure 6The filter element 4 is provided with a rotating assembly for facilitating the rotation of the filter element 4, and the rotating assembly includes a plurality of arc-shaped clamping blocks 16 fixedly provided at the bottom end of the filter element 6, and a torsion spring 17 is clamped at the bottom end of the arc-shaped clamping block 16, and a mounting groove 18 matching the torsion spring 17 is provided on the workbench 1, and the torsion spring 17 is fixedly arranged in the mounting groove 18;

[0041] The bottom end circumferential side of the filter element 2 7 is rotatably connected with a plurality of balls 19, the filter element 16 is provided with an annular limiting groove 20 matching the ball 19, the filter element 2 7 is movably clamped in the filter element 6 through the plurality of balls 19 rotatably connected to the bottom end thereof, the bottom end circumferential side of the filter element 6 is rotatably connected with a plurality of balls 21, the filter cartridge 3 is provided with an annular limiting groove 22 matching the ball 21, the filter element 6 is movably clamped in the filter cartridge 3, specifically, in the utility model, through the design of the arc-shaped clamping block 16 and the torsion spring 17, the staff only needs to twist the knob 15 clockwise to make the spherical protrusion 10 block the filter hole 8 and push out the solid impurities in the filter hole 8, and then continue to rotate The knob 15 is turned, and the filter element 2 7 drives the filter element 1 6 to rotate clockwise. During this process, the arc-shaped clamping block 16 at the bottom of the filter element 1 6 continuously squeezes the torsion spring 17. When the resistance transmitted from the knob 15 is large, the knob 15 is released. At this time, the torsion spring 17 is reset and drives the filter element 1 6 to rotate rapidly counterclockwise. During the counterclockwise rotation of the filter element 1 6, the filter element 2 7 always contacts the right side wall of the mounting hole 12 through the spherical protrusion 10, so that the spherical column block always blocks the filter hole 8, and the solid impurities blocked in the filter hole 8 are thrown out through the centrifugal force of the rotation of the filter element 1 6, so that they fall on the bottom of the filter cartridge 3, thereby avoiding the inconvenience of cleaning caused by the solid impurities blocking the filter hole 8 and improving the convenience of cleaning the device.

[0042] It should be noted that, in the present invention, through the design of ball 19, annular limit groove 1 20, ball 21 and annular limit groove 22, while realizing the position restriction between filter element 1 6 and filter cartridge 3 and between filter element 2 7 and filter element 1 6, the rotational resistance of filter element 1 6 and filter element 2 7 is reduced, thereby improving the smoothness of the operation of the device.

[0043] Embodiment 2

[0044] This embodiment is further optimized on the basis of the first embodiment. During the actual use of the device, we found that when it is necessary to clean the solid impurities accumulated in the filter cartridge 3, since the filter cartridge 3 and the filter element 4 are clamped together, when the staff takes the filter cartridge 3 out of the water tank 2, the arc-shaped clamping block 16 at the bottom of the filter element 4 will be separated from the torsion spring 17. When the filter cartridge 3 is fixed again, it is difficult to ensure that the arc-shaped clamping block 16 clamps the torsion spring 17. The installation operation is difficult and the use is inconvenient.

[0045] Reference Figure 7-8 The filter cartridge 3 includes a filter cartridge 1 23 and a filter cartridge 2 24. The filter cartridge 3 is provided with a clamping assembly for limiting the relative positions of the filter cartridge 1 23 and the filter cartridge 2 24. The clamping assembly includes a plurality of guide plug-in blocks 25 fixedly arranged on the peripheral side of the bottom end of the filter cartridge 24. The filter cartridge 1 23 is provided with a plurality of guide plug-in grooves 26 matching the guide plug-in blocks 25. The bottom ends of the guide plug-in grooves 26 are connected with L-shaped limit grooves 27 for limiting the rotational position of the guide plug-in blocks 25.

[0046] A plurality of columnar blocks 28 are fixedly provided at the bottom end of the filter cartridge 24, and the bottom end of the columnar block 28 is rotatably connected to a ball roller 3 29, and an arc-shaped limit groove 30 matching the columnar block 28 and the ball roller 3 29 is provided on the filter cartridge 1 23, and a columnar clamping groove 31 for limiting the rotational position of the filter cartridge 24 is provided at the end of the arc-shaped limit groove 30, and a handle 32 for easy control by the operator is rotatably connected to the top end of the filter cartridge 24. Specifically, in the utility model, through the design of the clamping assembly, when the operator cleans the solid impurities inside the filter cartridge 3, he only needs to pull up and turn the handle 32 to realize the separation of the filter cartridge 1 23 and the filter cartridge 2 24, thereby further improving the convenience of cleaning the device.

[0047] When cleaning the solid impurities accumulated in the filter cartridge 3, the operator only needs to lift the handle 32 upwards to disengage the guide plug-in block 25 and the columnar block 28 from the L-shaped limit groove 27 and the columnar slot 31, and turn the handle 32 counterclockwise to move the guide plug-in block 25 and the columnar block 28 inside the L-shaped limit groove 27 and the arc-shaped limit groove 30. When the guide plug-in block 25 and the columnar block 28 and the left side wall of the L-shaped limit groove 27 and the arc-shaped limit groove 30 collide with each other, the filter cartridge 24 is lifted up. In this process, the guide plug-in block 25 moves upwards along the guide plug-in groove 26, effectively preventing the filter cartridge 24 from moving upwards. In case of jamming during the lifting process, after the filter cartridge 24 is completely lifted out of the filter cartridge 1 23, the solid impurities accumulated in the filter cartridge 24 are dumped out. After the solid impurities in the filter cartridge 24 are cleaned up, the guide plug-in block 25 on the filter cartridge 24 is inserted along the guide plug-in groove 26 and the handle 32 is turned clockwise to make the guide plug-in block 25 and the column block 28 and the L-shaped limit groove 27 and the right side wall of the arc-shaped limit groove 30 collide with each other, and then release the handle 32 to make the guide plug-in block 25 and the column block 28 respectively snap into the L-shaped limit groove 27 and the column snap-in groove 31, so as to realize the cleaning of the solid impurities accumulated in the filter cartridge 3.

[0048] Reference Figure 7-8The top of the bottom of the filter cartridge 24 is a conical inclined surface with a high inside and a low outside. Specifically, in the utility model, this design is coordinated with the rotating assembly so that most of the solid impurities accumulated inside the filter cartridge 24 are accumulated on the periphery of the bottom of the filter cartridge 24, effectively avoiding secondary blocking of the filter hole 8 by solid impurities during the lifting process of the filter cartridge 24, thereby improving the stability of the device.

[0049] The use process of a commercial water tank 2 filtering device provided by the utility model is as follows:

[0050] When the working state of the water tank 2 needs to be switched, the staff rotates the knob 15 to rotate the filter element 2 7 in the filter element 1 6, and drives the spherical protrusion 10 to squeeze the arc-shaped spring sheet 11, so that the spherical protrusion 10 passes over the arc-shaped spring sheet 11 and is connected to one side of the arc-shaped spring sheet 11, thereby blocking or unblocking the filter hole 8, and completing the switching of the water tank 2 between water storage and drainage.

[0051] When cleaning the solid impurities blocked in the filter hole 8, the staff only needs to twist the knob 15 clockwise to make the spherical protrusion 10 block the filter hole 8 and push the solid impurities in the filter hole 8 outward. At this time, continue to turn the knob 15, and the filter element 2 7 drives the filter element 1 6 to rotate clockwise. In this process, the arc-shaped clamping block 16 at the bottom of the filter element 1 6 continuously squeezes the torsion spring 17. When the resistance transmitted from the knob 15 is large, release the knob 15. At this time, the torsion spring 17 resets and drives the filter element 1 6 to rotate counterclockwise quickly. In the process of the counterclockwise rotation of the filter element 1 6, the filter element 2 7 always conflicts with the right side wall of the mounting hole 12 through the spherical protrusion 10, so that the spherical column block always blocks the filter hole 8, and the solid impurities blocked in the filter hole 8 are thrown out through the centrifugal force of the rotation of the filter element 1 6, so that they fall on the bottom of the filter cartridge 3.

[0052] When cleaning the solid impurities accumulated in the filter cartridge 3, the operator only needs to lift the handle 32 upwards to disengage the guide plug-in block 25 and the columnar block 28 from the L-shaped limit groove 27 and the columnar slot 31, and turn the handle 32 counterclockwise to move the guide plug-in block 25 and the columnar block 28 inside the L-shaped limit groove 27 and the arc-shaped limit groove 30. When the guide plug-in block 25 and the columnar block 28 and the left side wall of the L-shaped limit groove 27 and the arc-shaped limit groove 30 collide with each other, the filter cartridge 24 is lifted up. In this process, the guide plug-in block 25 moves upwards along the guide plug-in groove 26, effectively preventing the filter cartridge 24 from moving upwards. In case of jamming during the lifting process, after the filter cartridge 24 is completely lifted out of the filter cartridge 1 23, the solid impurities accumulated in the filter cartridge 24 are dumped out. After the solid impurities in the filter cartridge 24 are cleaned up, the guide plug-in block 25 on the filter cartridge 24 is inserted along the guide plug-in groove 26 and the handle 32 is turned clockwise to make the guide plug-in block 25 and the column block 28 and the L-shaped limit groove 27 and the right side wall of the arc-shaped limit groove 30 collide with each other, and then release the handle 32 to make the guide plug-in block 25 and the column block 28 respectively snap into the L-shaped limit groove 27 and the column snap-in groove 31, so as to realize the cleaning of the solid impurities accumulated in the filter cartridge 3.

[0053] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A commercial water tank filtering device, comprising a workbench (1) and a water tank (2), characterized in that: The water tanks (2) are provided in plurality and are all embedded in the workbench (1); the bottoms of the plurality of water tanks (2) are provided with a filtering mechanism for filtering solid impurities; the filtering mechanism comprises a filter cartridge (3) and a filter element (4); the filter element (4) is arranged in the middle of the filter cartridge (3); the bottom of the filter element (4) is connected to a drain pipe (5) for facilitating water discharge; The filter element (4) comprises a filter element 1 (6) and a filter element 2 (7), the filter element 2 (7) being rotatably arranged inside the filter element 1 (6), the filter element 1 (6) and the filter element 2 (7) being evenly provided with a plurality of groups of filter holes (8) for filtering solid impurities, the bottoms of the filter element 1 (6), the filter element 2 (7) and the filter cartridge (3) being all provided with through holes (9) matching the drain pipe (5), the drain pipe (5) being fixedly connected to the bottom ends of the through holes (9), and the filter element 1 (6) and the filter element 2 (7) being provided with switching components for controlling the working state of the filter element (4); The switching assembly comprises a spherical protrusion (10) and an arc-shaped spring sheet (11). The spherical protrusion (10) is provided in plurality and fixedly arranged on a side of the filter element 2 (7) opposite to the filter element 1 (6). The filter element 1 (6) is provided with a plurality of mounting holes (12) on a side opposite to the filter element 2 (7) for facilitating the mounting of the arc-shaped spring sheet (11). The arc-shaped spring sheet (11) is fixedly arranged in the mounting holes (12). The spherical protrusion (10) abuts against one side of the arc-shaped spring sheet (11). The filter element 2 (7) is provided with a square hole (13) for facilitating the abutment of the arc-shaped spring sheet (11). A blocking cover (14) for blocking the top of the filter element 2 (7) is fixedly arranged at the top of the blocking cover (14). A knob (15) for facilitating the operator to control the rotation angle of the filter element 2 (7) is fixedly arranged at the top of the blocking cover (14).

2. A commercial water tank filter device according to claim 1, characterized in that: The filter element (4) is provided with a rotating assembly for facilitating the rotation of the filter element (4), the rotating assembly comprising a plurality of arc-shaped clamping blocks (16) fixedly mounted on the bottom end of the filter element (6), the bottom end of the arc-shaped clamping blocks (16) being clamped with a torsion spring (17), the workbench (1) being provided with a mounting groove (18) matching the torsion spring (17), the torsion spring (17) being fixedly mounted in the mounting groove (18); The bottom end circumferential side of the filter element 2 (7) is rotatably connected to a plurality of balls 1 (19); the filter element 1 (6) is provided with an annular limiting groove 1 (20) matching the balls 1 (19); the filter element 2 (7) is movably engaged in the filter element 1 (6) through the plurality of balls 1 (19) rotatably connected to the bottom end; the bottom end circumferential side of the filter element 1 (6) is rotatably connected to a plurality of balls 2 (21); the filter cartridge (3) is provided with an annular limiting groove 2 (22) matching the balls 2 (21); the filter element 1 (6) is movably engaged in the filter cartridge (3).

3. A commercial water tank filter device according to claim 1, characterized in that: The filter cartridge (3) comprises a filter cartridge 1 (23) and a filter cartridge 2 (24); a clamping assembly for limiting the relative position of the filter cartridge 1 (23) and the filter cartridge 2 (24) is provided on the filter cartridge (3); the clamping assembly comprises a plurality of guide plug-in blocks (25) fixedly arranged on the peripheral side of the bottom end of the filter cartridge 2 (24); a plurality of guide plug-in grooves (26) matching the guide plug-in blocks (25) are provided on the filter cartridge 1 (23); the bottom ends of the guide plug-in grooves (26) are connected to an L-shaped limit groove (27) for limiting the rotational position of the guide plug-in blocks (25); A plurality of columnar blocks (28) are fixedly arranged at the bottom end of the filter cartridge 2 (24); the bottom ends of the columnar blocks (28) are rotatably connected to ball bearings 3 (29); an arc-shaped limiting groove (30) matching the columnar blocks (28) and ball bearings 3 (29) is arranged on the filter cartridge 1 (23); a columnar clamping groove (31) for limiting the rotational position of the filter cartridge 2 (24) is arranged at the end of the arc-shaped limiting groove (30); and a handle (32) for convenient operator control is rotatably connected to the top end of the filter cartridge 2 (24).

4. A commercial water tank filter device according to claim 3, characterized in that: The top and bottom of the second filter cartridge (24) are arranged in a conical inclined surface with a high inner side and a low outer side.

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