Water filtering device applied to coffee machine and filtering method of water filtering device

Abstract

The invention relates to the technical field of water filtering, in particular to a water filtering device applied to a coffee maker and a filtering method thereof.The water filtering device comprises a coffee maker body, a filtering box and a coarse filter cartridge, the filtering box is fixedly installed on the coffee maker body through bolts, and a water pump is fixedly installed at the bottom end in the filtering box through bolts; a coarse filter cylinder is arranged on one side of the water pump on the filter box, a fine filter cylinder is arranged on one side of the coarse filter cylinder far away from the water pump in the filter box, a reverse osmosis cylinder is fixedly mounted on one side of the fine filter cylinder far away from the coarse filter cylinder in the filter box, and a rotating box is fixedly mounted at the center of the bottom of the coarse filter cylinder on the filter box through a bolt. A rotating rod rotates to drive a half gear to rotate, the half gear drives a movable column on a rack plate to press downwards to accumulate force on a telescopic spring, the telescopic spring accumulates force to drive the movable column, a movable rod and an arc-shaped movable rod to knock a base ring at intervals, and impurities stuffed into holes in a filter plate are vibrated and fall off during back-and-forth flushing; impurities can be conveniently discharged, and the cleanliness of a water source is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water filtration, and in particular to a water filtration device and a filtration method thereof applied to a coffee machine. Background Art

[0002] With the improvement of people's living standards, coffee is becoming more and more popular. Coffee is not only a leisure drink in life, but also can achieve the effect of refreshing, improving people's quality of life and work efficiency. In response to this, people have applied electronic technology to coffee machines, realizing automatic control of the entire process of brewing coffee, including grinding, pressing, filling, brewing, and removing residues, and created the coffee machine.

[0003] At present, coffee machines can obtain water by directly connecting to the tap water pipes of homes or offices, and let the water be filtered through filtering equipment including coarse filtration systems, fine filtration systems, reverse osmosis systems, water softeners and decarbonization filters to ensure the purity of water entering the coffee machine and prevent impurities in the water from affecting the taste of the coffee and the service life of the coffee machine. In the coarse filtration system, the internal filter generally needs to be replaced or cleaned after three months of use. At this time, the operator is required to disassemble the water filter of the entire coffee machine, and remove or replace the filter in the coarse filtration system. Such long-term and multiple disassembly, replacement, cleaning and assembly not only increases the labor intensity of the user, but also affects the coarse filtration system and the entire water filtration process. For example, the disassembly and assembly of the water pipeline back and forth causes the sealing performance to be reduced, and subsequent use will cause water seepage and leakage. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a water filtering device and a filtering method thereof applied to a coffee machine.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a coffee machine body, a filter box installed at the bottom of one side of the back of the coffee machine body, and a coarse filter cartridge arranged inside the filter box, the filter box is fixedly installed on the coffee machine body by bolts, a water pump is fixedly installed on the bottom end of the filter box by bolts, the coarse filter cartridge is arranged on one side of the water pump on the filter box, a fine filter cartridge is arranged on the side of the coarse filter cartridge away from the water pump in the filter box, a reverse osmosis cartridge is fixedly installed on the side of the fine filter cartridge away from the coarse filter cartridge in the filter box, a rotating box is fixedly installed on the filter box at the bottom center of the coarse filter cartridge by bolts, a U-shaped base plate is arranged on the top of the rotating box, the bottom of the coarse filter cartridge is fixedly installed on the U-shaped base plate, a rotating assembly for reciprocatingly swinging the U-shaped base plate is arranged in the rotating box, and the rotating assembly comprises:

[0006] A rotating column drives the U-shaped base plate to rotate, a rotating motor is fixedly installed inside the rotating box by bolts, a rotating rod is fixedly installed on the output end of the rotating motor, a first bevel gear is fixedly installed on the rotating rod at both ends inside the rotating box by bolts, a fixing plate is fixedly installed on the middle end of the rotating box by bolts, the other end top of the fixing plate is connected to the rotating column by a bearing, and a triangular rotating block is fixedly installed on the rotating column inside the rotating box;

[0007] A first L-shaped swing arm drives the rotating column to rotate, wherein a first rotating shaft is connected to the rotating motor through a first connecting plate in the rotating box, and the first L-shaped swing arm is fixedly installed on the top of the first rotating shaft, and a second rotating shaft is connected to the rotating motor through a second connecting plate in the rotating box, and a second L-shaped swing arm is fixedly installed on the top of the second rotating shaft;

[0008] The top end of the rotating rod extends to the outside of the rotating box and is fixedly installed with a half gear by bolts. In the rotating box, fixed cylinders for performing interval knocking on the U-shaped base plate are fixedly installed on both sides of the half gear.

[0009] As a preferred technical solution of the present invention, a second bevel gear is fixedly installed on the bottom end of the first rotating shaft by bolts, and the second bevel gear is movably engaged with the first bevel gear on the rotating rod close to the rotating motor end, and a third bevel gear is fixedly installed on the bottom end of the second rotating shaft by bolts, and the third bevel gear is movably engaged with the first bevel gear on the rotating rod away from the rotating motor end.

[0010] Three groups of toggle grooves are evenly arranged on the triangular rotating block, the sizes of the toggle grooves are consistent with the first L-shaped swing arm and the second L-shaped swing arm, and the first L-shaped swing arm and the second L-shaped swing arm move in the toggle grooves, and arc-shaped limiting grooves are arranged on the triangular rotating block between adjacent toggle grooves.

[0011] As a preferred technical solution of the present invention, a fan-shaped limit plate is fixedly installed on the top of the second rotating shaft on one side of the second L-shaped swing arm by bolts, and the size of the fan-shaped limit plate is consistent with the arc-shaped limit groove, and the fan-shaped limit plate moves in the arc-shaped limit groove, and a triangular support plate is fixedly installed on the second rotating shaft on the side away from the fan-shaped limit plate by bolts, and the triangular support plate is consistent with the size of the arc-shaped limit groove, and the triangular support plate moves in the arc-shaped limit groove.

[0012] The top end of the rotating column passes through the rotating box and is installed at the bottom center of the U-shaped base plate. The coarse filter cartridge is fixedly supported by fixing bolts around the U-shaped base plate, and a base ring is fixedly installed on the outer periphery of the U-shaped base plate by bolts.

[0013] As a preferred technical solution of the present invention, a telescopic spring is fixedly installed at the center of the inner bottom end of the fixed cylinder by bolts, a movable column is fixedly installed at the top of the telescopic spring by bolts, a movable rod is fixedly installed at the center of the top of the movable column by bolts, and an arc-shaped movable block made of rubber for periodically knocking the base ring is fixedly installed at the top of the movable rod by bolts.

[0014] The movable column moves in the inner center of the fixed cylinder, fixed sliding grooves are provided on both sides of the interior of the fixed cylinder, and a fixed slider is slidably connected to the fixed cylinder in the fixed sliding groove. The top of the fixed slider is fixedly installed on both sides of the movable column by bolts, and a rack plate movably meshed with the half gear is fixedly installed on one side of the movable column by bolts, and a movable groove is provided on the fixed cylinder, and the half gear is meshed with the rack plate through the movable groove.

[0015] As a preferred technical solution of the present invention, a baffle is fixedly installed at the inner center of the coarse filter cartridge, and a plurality of filter plates are evenly installed on both sides of the baffle, the top of the coarse filter cartridge is threadedly connected to a fixed cover, the top periphery of the fixed cover is movably connected to a rotating cover through a bearing, the top of the rotating cover is threadedly connected to an inlet and outlet water conduit, the top of the inlet and outlet water conduit is connected to a control valve, a connecting conduit is connected between the control valve and the water pump, and the connecting conduit is connected to the fine filter cartridge and the reverse osmosis cartridge through the control valve, and the bottom of the coarse filter cartridge is connected to a sewage pipe;

[0016] A water inlet conduit connected to the water pump is arranged at the bottom of the filter box, a placement plate is arranged at the top of the coffee machine body, a tray is arranged at the bottom of the front side of the coffee machine body, a steam rod and a brewing handle are arranged on the coffee machine body at the top of both ends of the tray, and a control operation panel is arranged on the top of the coffee machine body.

[0017] As a preferred technical solution of the present invention, a filtering method for a water filtering device applied to a coffee machine comprises the following steps:

[0018] Step 1: Connect the water inlet conduit to the external water pipe to supply water to the coffee machine. The water pump controls the water pressure of the water supply. The connecting conduit passes the water through the coarse filter cartridge to filter out large particles of impurities in the water, such as sand and rust, and then passes through the fine filter cartridge to remove impurities and bacteria in the water. Then, the reverse osmosis cartridge is used to remove dissolved salts, colloids, microorganisms and organic matter in the water, and finally the water is discharged to the coffee machine for use;

[0019] Step 2: After passing through the filter plates on both sides of the baffle in the coarse filter cartridge for blocking and filtering, water enters one side and exits the other side. After working for a period of time, the water is controlled by the control valve to only enter the coarse filter cartridge, and the first bevel gear on the rotating rod is driven to rotate by the rotating motor. The first bevel gear meshes and drives the second bevel gear and the third bevel gear to move synchronously, so that the first L-shaped swing arm on the first connecting plate and the second L-shaped swing arm on the second connecting plate rotate, and the two L-shaped swing arms make the triangular rotating block on the rotating column reciprocate at intervals;

[0020] Step 3: When the first L-shaped swing arm enters the toggle slot of the triangular rotating block, it drives the rotating column to move, so that the coarse filter cartridge rotates under the rotating cover, so that the inlet and outlet water conduits under the control valve reversely flush the filter cartridge, so that the impurities blocked by the filter plate are reversely flushed down, and the impurities are discharged through the sewage pipe. When the second L-shaped swing arm enters the toggle slot in the triangular rotating block, the coarse filter cartridge is reset, and the filter plate is flushed back and forth;

[0021] Step 4: When the rotating rod drives the half gear to rotate during the rotation process, and the half gear is engaged with the rack plate in the fixed cylinder, the half gear drives the movable column on the rack plate to press down and store force on the telescopic spring. When the half gear is separated from the rack plate, the telescopic spring stores force and drives the movable column, movable rod and arc-shaped movable rod to strike the base ring at intervals, so that the impurities stuck in the holes of the filter plate are vibrated and fall during reverse flushing, and the impurities are discharged.

[0022] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0023] 1. The rotating motor drives the first bevel gear on the rotating rod to rotate. The meshing of the first bevel gear drives the second bevel gear and the third bevel gear to move synchronously, so as to realize the rotation of the first L-shaped swing arm on the first connecting plate and the second L-shaped swing arm on the second connecting plate. The two L-shaped swing arms reciprocate at intervals with the triangular rotating block on the rotating column.

[0024] 2. The rotating rod drives the half gear to rotate during rotation, and the half gear drives the movable column on the rack plate to press down to store force on the telescopic spring. The stored force of the telescopic spring drives the movable column, movable rod and arc-shaped movable rod to knock on the base ring at intervals. When flushing back and forth, the impurities stuck in the holes on the filter plate are vibrated and fall, which is convenient for the discharge of impurities and improves the cleanliness of the water source.

[0025] 3. The first L-shaped swing arm enters the toggle groove of the triangular rotating block to drive the rotating column to move, thereby realizing the rotation of the triangular rotating block. After the first L-shaped swing arm leaves the toggle groove, the fan-shaped limit plate on the second rotating shaft enters the arc-shaped limit groove to realize the support and fixation of the triangular rotating block, thereby completing the rotation of the coarse filter cartridge under the rotating cover, and the structure is simple and stable.

[0026] 4. When the second L-shaped swing arm enters the toggle groove in the triangular rotating block, the coarse filter cartridge is reset. When the second L-shaped swing arm leaves the toggle groove, it enters the arc-shaped limit groove through the triangular support plate to support and fix the triangular rotating block. The left and right intervals of the filter plates are interchanged to achieve reverse flushing of impurities blocked by the filter plates, thereby cleaning the coarse filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the overall back structure of the present invention;

[0029] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure of the filter box;

[0030] Figure 4 For the present invention Figure 3 Schematic diagram of the connection structure of the medium and coarse filter cartridge;

[0031] Figure 5 For the present invention Figure 4 Schematic diagram of the connection structure of the middle rotating box;

[0032] Figure 6 For the present invention Figure 5 Schematic diagram of the internal structure of the middle rotating box;

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the middle rotating rod connection structure;

[0034] Figure 8 For the present invention Figure 4 Schematic diagram of the internal structure of the medium and coarse filter cartridge;

[0035] Fig. 9 For the present invention Figure 4 Schematic diagram of the internal structure of the middle fixed cylinder;

[0036] Among them: 10, coffee machine body; 11, water inlet conduit; 12, placement plate; 13, tray; 14, steam rod; 15, brewing handle; 16, control operation panel; 20, filter box; 21, water pump; 22, fine filter cartridge; 23, reverse osmosis cartridge; 24, inlet and outlet water conduits; 25, control valve; 26, connecting conduit; 30, coarse filter cartridge; 31, U-shaped base plate; 32, fixing bolts; 33, base ring; 34, baffle; 35, filter plate; 36, fixing cover; 37, rotating cover; 38, sewage pipe; 40, rotating box; 41, rotating column; 42, rotating motor; 43, rotating rod; 4 4. First bevel gear; 45. Fixed plate; 46. Arc-shaped limit groove; 47. Fan-shaped limit plate; 48. Triangular support plate; 50. Triangular rotating block; 51. First L-shaped swing arm; 52. First connecting plate; 53. First rotating shaft; 54. Second connecting plate; 55. Second rotating shaft; 56. Second L-shaped swing arm; 57. Second bevel gear; 58. Third bevel gear; 59. Toggle groove; 60. Fixed cylinder; 61. Half gear; 62. Telescopic spring; 63. Movable column; 64. Movable rod; 65. Arc-shaped movable block; 66. Fixed slide groove; 67. Fixed slider; 68. Movable groove; 69. Rack plate. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0038] Embodiment: Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the coffee machine body 10 includes a filter box 20 installed at the bottom of one side of the back of the coffee machine body 10 and a coarse filter cartridge 30 arranged inside the filter box 20. The filter box 20 is fixedly installed on the coffee machine body 10 by bolts. A water pump 21 is fixedly installed at the bottom of the filter box 20 by bolts. The water pump 21 is used to supply water to the coffee machine with stable water pressure. The filter box 20 is provided with a coarse filter cartridge 30 on one side of the water pump 21. The filter box 20 is provided with a fine filter cartridge 20 on the side of the coarse filter cartridge 30 away from the water pump 21. 2. A reverse osmosis cartridge 23 is fixedly installed in the filter box 20 on the side of the fine filter cartridge 22 away from the coarse filter cartridge 30. A rotating box 40 is fixedly installed on the filter box 20 at the bottom center of the coarse filter cartridge 30 by bolts. A U-shaped base plate 31 is arranged on the top of the rotating box 40. The bottom of the coarse filter cartridge 30 is fixedly installed on the U-shaped base plate 31. The coarse filter cartridge 30 can be conveniently disassembled and assembled through the U-shaped base plate 31. A rotating assembly for reciprocating the U-shaped base plate 31 is arranged in the rotating box 40, and the rotating assembly includes:

[0039] A rotating column 41 drives the U-shaped base plate 31 to rotate, a rotating motor 42 is fixedly installed inside the rotating box 40 by bolts, a rotating rod 43 is fixedly installed at the output end of the rotating motor 42, a first bevel gear 44 is fixedly installed on the rotating rod 43 at both ends inside the rotating box 40 by bolts, a fixing plate 45 is fixedly installed at the middle end of the rotating box 40 by bolts, and the top of the other end of the fixing plate 45 is connected to the rotating column 41 through a bearing, and a triangular rotating block 50 is fixedly installed on the rotating column 41 in the rotating box 40, and the coarse filter cartridge 30 is driven to achieve a self-cleaning effect through the reciprocating motion of the triangular rotating block 50, thereby extending the service life of the coarse filter cartridge 30 and reducing the labor intensity of the operator;

[0040] A first L-shaped swing arm 51 drives the rotating column 41 to rotate. A first rotating shaft 53 is connected to the rotating motor 42 in the rotating box 40 through a first connecting plate 52. The first L-shaped swing arm 51 is fixedly installed on the top of the first rotating shaft 53. A second rotating shaft 55 is connected to the rotating motor 42 in the rotating box 40 through a second connecting plate 54. A second L-shaped swing arm 56 is fixedly installed on the top of the second rotating shaft 55. The left and right interval rotation of the triangular rotating block 50 is completed by the first L-shaped swing arm 51 and the second L-shaped swing arm;

[0041] The top end of the rotating rod 43 extends to the outside of the rotating box 40 and is fixedly installed with a half gear 61 by bolts. A fixing cylinder 60 for periodically knocking the U-shaped base plate 31 is fixedly installed on both sides of the half gear 61 in the rotating box 40. The base ring 33 is vibrated by the arc-shaped movable block 65 in the fixing cylinder 60, so that impurities in the holes of the filter plate 35 are vibrated down, thereby improving the subsequent filtering effect of the coarse filter cylinder 30.

[0042] See also Figure 1 and Figure 4 A second bevel gear 57 is fixedly installed on the bottom end of the first rotating shaft 53 by bolts, and the second bevel gear 57 is movably engaged with the first bevel gear 44 on the rotating rod 43 close to the rotating motor 42. A third bevel gear 58 is fixedly installed on the bottom end of the second rotating shaft 55 by bolts, and the third bevel gear 58 is movably engaged with the first bevel gear 44 on the rotating rod 43 away from the rotating motor 42. The bevel gear on the rotating rod 43 drives the bevel gear under the L-shaped swing arm to rotate, thereby completing the back and forth swing of the triangular rotating block 50.

[0043] Three groups of toggle grooves 59 are evenly arranged on the triangular rotating block 50. The sizes of the toggle grooves 59 match those of the first L-shaped swing arm 51 and the second L-shaped swing arm 56, and the first L-shaped swing arm 51 and the second L-shaped swing arm 56 move in the toggle grooves 59. Arc-shaped limiting grooves 46 are arranged between adjacent toggle grooves 59 on the triangular rotating block 50. The toggle grooves 59 are used to realize the rotational movement of the triangular rotating block 50, and the arc-shaped limiting grooves 46 are used to realize the limiting support effect of the triangular rotating block 50. The structure is simple and stable.

[0044] See also Figure 1 , Figure 5 and Figure 6 A fan-shaped limit plate 47 is fixedly installed on the top of the second rotating shaft 55 on one side of the second L-shaped swing arm 56 by bolts, and the size of the fan-shaped limit plate 47 is consistent with the arc-shaped limit groove 46, and the fan-shaped limit plate 47 moves in the arc-shaped limit groove 46. A triangular support plate 48 is fixedly installed on the second rotating shaft 55 on the side away from the fan-shaped limit plate 47 by bolts, and the size of the triangular support plate 48 is consistent with the arc-shaped limit groove 46, and the triangular support plate 48 moves in the arc-shaped limit groove 46, and enters the arc-shaped limit groove 46 through the fan-shaped limit plate 47 and the triangular support plate 48 to realize fixed support.

[0045] The top of the rotating column 41 passes through the rotating box 40 and is installed at the bottom center of the U-shaped base plate 31. The coarse filter cartridge 30 is fixedly supported by fixing bolts 32 around the U-shaped base plate 31. The outer periphery of the U-shaped base plate 31 is fixedly installed with a base ring 33 by bolts, and the coarse filter cartridge 30 is vibrated to remove impurities in cooperation with the arc-shaped movable block 65.

[0046] See also Figure 2 , Figure 7 , Figure 8 and Fig. 9A telescopic spring 62 is fixedly installed at the center of the inner bottom end of the fixed cylinder 60 by bolts, a movable column 63 is fixedly installed at the top of the telescopic spring 62 by bolts, a movable rod 64 is fixedly installed at the center of the top end of the movable column 63 by bolts, and an arc-shaped movable block 65 made of rubber material for periodically knocking the base ring 33 is fixedly installed at the top of the movable rod 64 by bolts. The reciprocating motion of the arc-shaped movable block 65 is completed by the stored force of the telescopic spring 62 in cooperation with the half gear 61 and the rack plate 69.

[0047] The movable column 63 moves in the inner center of the fixed cylinder 60. Fixed grooves 66 are provided on both sides of the interior of the fixed cylinder 60. Fixed sliders 67 are slidably connected in the fixed grooves 66 on the fixed cylinder 60. The tops of the fixed sliders 67 are fixedly installed on both sides of the movable column 63 by bolts, so that the movable column 63 is stable and smooth during the up and down reciprocating movement. A rack plate 69 movably meshed with the half gear 61 is fixedly installed on one side of the movable column 63 by bolts. A movable groove 68 is provided on the fixed cylinder 60, and the half gear 61 meshes with the rack plate 69 through the movable groove 68, thereby achieving the effect of storing force and knocking.

[0048] See also Figure 2 , Figure 3 and Figure 5 A baffle 34 is fixedly installed at the inner center of the coarse filter cartridge 30, and a number of filter plates 35 are evenly installed on both sides of the baffle 34. A fixed cover 36 is threadedly connected to the top of the coarse filter cartridge 30, and a rotating cover 37 is movably connected to the top periphery of the fixed cover 36 through a bearing. The top of the rotating cover 37 is threadedly connected to the inlet and outlet water conduit 24, and the top of the inlet and outlet water conduit 24 is connected to the control valve 25. A connecting conduit 26 is connected between the control valve 25 and the water pump 21, and the connecting conduit 26 is connected to the fine filter cartridge 22 and the reverse osmosis cartridge 23 through the control valve 25. The control of the water source is achieved through the control valve 25. A sewage pipe 38 is connected to the bottom of the coarse filter cartridge 30, and the sewage pipe 38 is used to complete the discharge of impurities in the coarse filter cartridge 30;

[0049] A water inlet conduit 11 connected to a water pump 21 is provided at the bottom of the filter box 20, a placement tray 12 is provided on the top of the coffee machine body 10 for placing tools, a tray 13 is provided at the bottom of the front side of the coffee machine body 10, and a steam rod 14 and a brewing handle 15 are provided on the coffee machine body 10 at the top of both ends of the tray 13 to complete the making of coffee, and a control operation panel 16 is provided on the top of the coffee machine body 10 to control and operate the entire coffee machine body 10.

[0050] Among them, a filtering method for a water filtering device applied to a coffee machine includes the following steps:

[0051] Step 1: Connect the water inlet conduit 11 to the external water pipe to supply water to the coffee machine body 10. The water pump 21 controls the water pressure of the water supply. The connecting conduit 26 passes the water through the coarse filter cartridge 30 to filter out large particles of impurities in the water, such as sand and rust. Then, the water passes through the fine filter cartridge 22 to remove impurities and bacteria in the water. Then, the water passes through the reverse osmosis cartridge 23 to remove dissolved salts, colloids, microorganisms and organic matter in the water. Finally, the water is discharged to the coffee machine body 10 for use.

[0052] Step 2: After passing through the filter plates 35 on both sides of the baffle 34 in the coarse filter cartridge 30, water enters one side and exits the other side. After working for a period of time, the control valve 25 controls the water to only enter the coarse filter cartridge 30, and the first bevel gear 44 on the rotating rod 43 is driven to rotate by the rotating motor 42. The first bevel gear 44 engages and drives the second bevel gear 57 and the third bevel gear 58 to move synchronously, so that the first L-shaped swing arm 51 on the first connecting plate 52 and the second L-shaped swing arm 56 on the second connecting plate 54 rotate, and the two L-shaped swing arms cause the triangular rotating block 50 on the rotating column 41 to reciprocate at intervals;

[0053] Step 3: When the first L-shaped swing arm 51 enters the toggle slot 59 of the triangular rotating block 50, the rotating column 41 moves, so that the coarse filter cartridge 30 rotates under the rotating cover 37, so that the inlet and outlet water conduit 24 under the control valve 25 reversely flushes the filter cartridge, so that the impurities blocked by the filter plate 35 are reversely flushed down and discharged through the sewage pipe 38. When the second L-shaped swing arm 56 enters the toggle slot 59 in the triangular rotating block 50, the coarse filter cartridge 30 is reset, and the filter plate 35 is flushed back and forth;

[0054] Step 4: When the rotating rod 43 drives the half gear 61 to rotate during the rotation process, and the half gear 61 is engaged with the rack plate 69 in the fixed cylinder 60, the half gear 61 drives the movable column 63 on the rack plate 69 to press down and accumulate force on the telescopic spring 62. When the half gear 61 is separated from the rack plate 69, the telescopic spring 62 accumulates force and drives the movable column 63, the movable rod 64 and the arc-shaped movable rod 64 to strike the base ring 33 at intervals, so that during reverse flushing, the impurities plugged in the holes on the filter plate 35 are vibrated and fall, and the impurities are discharged.

[0055] Working principle: the water inlet conduit 11 is connected to the external water pipe to supply water to the coffee machine body 10, the water pump 21 controls the water pressure of the water supply, and the water is filtered through the coarse filter cartridge 30, the fine filter cartridge 22 and the reverse osmosis cartridge 23, and the water is blocked and filtered through the filter plates 35 on both sides of the baffle 34 in the coarse filter cartridge 30, and the water source is filtered for impurities from top to bottom through the filter plates 35 on the left side of the coarse filter cartridge 30, and from bottom to top through the right side of the coarse filter cartridge 30. After working for a period of time, the water supply to the fine filter cartridge 22 and the reverse osmosis cartridge 23 is stopped through the control valve 25, and the rotating motor 42 is started to drive the first bevel gear 44 on the rotating rod 43 to rotate. The first bevel gear 44 engages and drives the second bevel gear 57 and the third bevel gear 58 to move synchronously, so that the first L-shaped swing arm 51 on the first connecting plate 52 and the second L-shaped swing arm 56 on the second connecting plate 54 rotate, and the two L-shaped swing arms reciprocate the triangular rotating block 50 on the rotating column 41 at intervals;

[0056] The first L-shaped swing arm 51 enters the toggle groove 59 of the triangular rotating block 50 to drive the rotating column 41 to move, so that one side of the triangular rotating block 50 rotates. When the first L-shaped swing arm 51 is separated from the toggle groove 59, the fan-shaped limit plate 47 on the second rotating shaft 55 enters the arc-shaped limit groove 46 to support and fix the triangular rotating block 50, and the coarse filter cartridge 30 rotates under the rotating cover 37. At this time, the filter plates 35 on both sides of the baffle 34 are interchanged left and right, so that the inlet and outlet water conduits 24 under the control valve 25 reversely flush the filter cartridge, so that the impurities blocked by the filter plates 35 are reversely flushed down. When the second L-shaped swing arm 56 enters the toggle groove 59 in the triangular rotating block 50, the coarse filter cartridge 30 is reset. When the second L-shaped swing arm 56 is separated from the toggle groove 59, it enters the arc-shaped limit groove 46 through the triangular support plate 48 to support and fix the triangular rotating block 50, and flush the filter plates 35 back and forth.

[0057] When the rotating rod 43 drives the half gear 61 to rotate during the rotation process, the half gear 61 is engaged with the rack plate 69 in the fixed cylinder 60, and the half gear 61 drives the movable column 63 on the rack plate 69 to press down to store force for the telescopic spring 62. When the half gear 61 is separated from the rack plate 69, the telescopic spring 62 stores force to drive the movable column 63, the movable rod 64 and the arc-shaped movable rod 64 to strike the base ring 33 at intervals, so that the impurities plugged in the holes on the filter plate 35 are vibrated and fall when flushing back and forth, which is convenient for the discharge of impurities.

[0058] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A water filter device for a coffee machine, comprising a coffee machine body (10), a filter box (20) installed at the bottom of one side of the back of the coffee machine body (10), and a coarse filter cartridge (30) arranged inside the filter box (20), characterized in that: The filter box (20) is fixedly mounted on the coffee machine body (10) by means of bolts, a water pump (21) is fixedly mounted on the bottom end of the filter box (20) by means of bolts, the coarse filter cartridge (30) is arranged on one side of the water pump (21) on the filter box (20), a fine filter cartridge (22) is arranged in the filter box (20) on the side of the coarse filter cartridge (30) away from the water pump (21), and a fine filter cartridge (22) is arranged in the filter box (20) on the side of the fine filter cartridge (22) away from the coarse filter cartridge A reverse osmosis cartridge (23) is fixedly mounted on one side of the filter box (30); a rotating box (40) is fixedly mounted on the filter box (20) at the bottom center of the coarse filter cartridge (30) by means of bolts; a U-shaped base plate (31) is arranged on the top of the rotating box (40); the bottom of the coarse filter cartridge (30) is fixedly mounted on the U-shaped base plate (31); a rotating assembly for reciprocatingly swinging the U-shaped base plate (31) is arranged in the rotating box (40), and the rotating assembly comprises: a rotating column (41) driving the U-shaped base plate (31) to rotate; a rotating motor (42) is fixedly installed inside the rotating box (40) by bolts; a rotating rod (43) is fixedly installed at the output end of the rotating motor (42); a first bevel gear (44) is fixedly installed on the rotating rod (43) at both ends inside the rotating box (40) by bolts; a fixing plate (45) is fixedly installed at the middle end inside the rotating box (40) by bolts; the top of the other end of the fixing plate (45) is connected to the rotating column (41) by a bearing; and a triangular rotating block (50) is fixedly installed on the rotating column (41) inside the rotating box (40); a first L-shaped swing arm (51) for driving the rotating column (41) to rotate, a first rotating shaft (53) connected to the rotating box (40) at one end located at the rotating motor (42) via a first connecting plate (52), the first L-shaped swing arm (51) being fixedly mounted on the top of the first rotating shaft (53), a second rotating shaft (55) connected to the rotating box (40) at one end away from the rotating motor (42) via a second connecting plate (54), the second L-shaped swing arm (56) being fixedly mounted on the top of the second rotating shaft (55); The top end of the rotating rod (43) extends to the outside of the rotating box (40) and is fixedly mounted with a half gear (61) by means of bolts. A fixing cylinder (60) for performing interval tapping on the U-shaped base plate (31) is fixedly mounted on both sides of the half gear (61) in the rotating box (40).

2. The water filter device for a coffee machine according to claim 1, characterized in that: A second bevel gear (57) is fixedly mounted on the bottom end of the first rotating shaft (53) by means of bolts, and the second bevel gear (57) is movably engaged with the first bevel gear (44) on the rotating rod (43) at one end close to the rotating motor (42). A third bevel gear (58) is fixedly mounted on the bottom end of the second rotating shaft (55) by means of bolts, and the third bevel gear (58) is movably engaged with the first bevel gear (44) on the rotating rod (43) at one end away from the rotating motor (42).

3. The water filter device for a coffee machine according to claim 2, characterized in that: The triangular rotating block (50) is evenly provided with three groups of toggle grooves (59), the sizes of the toggle grooves (59) are consistent with the first L-shaped swing arm (51) and the second L-shaped swing arm (56), and the first L-shaped swing arm (51) and the second L-shaped swing arm (56) move in the toggle grooves (59), and the triangular rotating block (50) is provided with arc-shaped limiting grooves (46) between adjacent toggle grooves (59).

4. The water filter device for a coffee machine according to claim 3, characterized in that: A fan-shaped limit plate (47) is fixedly installed on the top of the second rotating shaft (55) on one side of the second L-shaped swing arm (56) by means of bolts, and the size of the fan-shaped limit plate (47) matches the arc-shaped limit groove (46), and the fan-shaped limit plate (47) moves in the arc-shaped limit groove (46); a triangular support plate (48) is fixedly installed on the second rotating shaft (55) on the side away from the fan-shaped limit plate (47) by means of bolts, and the size of the triangular support plate (48) matches the arc-shaped limit groove (46), and the triangular support plate (48) moves in the arc-shaped limit groove (46).

5. The water filter device for a coffee machine according to claim 4, characterized in that: The top end of the rotating column (41) passes through the rotating box (40) and is installed at the bottom center of the U-shaped base plate (31). The four sides of the U-shaped base plate (31) are fixedly supported by fixing bolts (32). The outer periphery of the U-shaped base plate (31) is fixedly mounted with a base ring (33) by bolts.

6. The water filter device for a coffee machine according to claim 5, characterized in that: A telescopic spring (62) is fixedly installed at the center of the inner bottom end of the fixed cylinder (60) by means of bolts, a movable column (63) is fixedly installed at the top end of the telescopic spring (62) by means of bolts, a movable rod (64) is fixedly installed at the center of the top end of the movable column (63) by means of bolts, and an arc-shaped movable block (65) made of rubber material for periodically knocking the base ring (33) is fixedly installed at the top end of the movable rod (64) by means of bolts.

7. The water filter device for a coffee machine according to claim 6, characterized in that: The movable column (63) moves in the center of the fixed cylinder (60), and fixed grooves (66) are provided on both sides of the fixed cylinder (60). A fixed slider (67) is slidably connected in the fixed groove (66) on the fixed cylinder (60), and the top of the fixed slider (67) is fixedly installed on both sides of the movable column (63) by bolts. A rack plate (69) that is movably meshed with the half gear (61) is fixedly installed on one side of the movable column (63) by bolts, and a movable groove (68) is provided on the fixed cylinder (60), and the half gear (61) is meshed with the rack plate (69) through the movable groove (68).

8. The water filter device for a coffee machine according to claim 7, characterized in that: A baffle (34) is fixedly installed at the inner center of the coarse filter cartridge (30), and a plurality of filter plates (35) are evenly installed on both sides of the baffle (34). A fixed cover (36) is threadedly connected to the top of the coarse filter cartridge (30), and a rotating cover (37) is movably connected to the top periphery of the fixed cover (36) through a bearing. The top of the rotating cover (37) is threadedly connected to an inlet and outlet water conduit (24), and a control valve (25) is connected to the top of the inlet and outlet water conduit (24). A connecting conduit (26) is connected between the control valve (25) and the water pump (21), and the connecting conduit (26) is connected to the fine filter cartridge (22) and the reverse osmosis cartridge (23) through the control valve (25). A sewage discharge pipe (38) is connected to the bottom of the coarse filter cartridge (30); A water inlet conduit (11) connected to the water pump (21) is arranged at the bottom of the filter box (20), a placement tray (12) is arranged at the top of the coffee machine body (10), a tray (13) is arranged at the bottom of the front side of the coffee machine body (10), a steam rod (14) and a brewing handle (15) are arranged on the coffee machine body (10) at the top of both ends of the tray (13), and a control operation panel (16) is arranged at the top of the coffee machine body (10).

9. The filtering method for a water filtering device used in a coffee machine according to claim 8, characterized in that: The following steps are included: Step 1: Connect the water inlet conduit (11) to the external water pipe to supply water to the coffee machine (10), and the water pump (21) controls the water pressure of the water supply. The connecting conduit (26) passes the water through the coarse filter cartridge (30) to filter out large particles of impurities in the water, such as sand and rust, and then passes the water through the fine filter cartridge (22) to remove impurities and bacteria in the water. Then, the water is removed through the reverse osmosis cartridge (23) to remove dissolved salts, colloids, microorganisms and organic matter in the water, and finally the water is discharged to the coffee machine (10) for use; Step 2: The filter plates (35) on both sides of the baffle (34) in the coarse filter cartridge (30) are blocked and filtered, and water enters one side and exits the other side. After working for a period of time, the control valve (25) is used to control the water to enter only the coarse filter cartridge (30). The first bevel gear (44) on the rotating rod (43) is driven to rotate by the rotating motor (42). The first bevel gear (44) is engaged to drive the second bevel gear (57) and the third bevel gear (58) to move synchronously, so that the first L-shaped swing arm (51) on the first connecting plate (52) and the second L-shaped swing arm (56) on the second connecting plate (54) rotate, and the two L-shaped swing arms cause the triangular rotating block (50) on the rotating column (41) to reciprocate at intervals. Step 3: When the first L-shaped swing arm (51) enters the toggle groove (59) of the triangular rotating block (50), the rotating column (41) is driven to move, so that the coarse filter cartridge (30) rotates under the rotating cover (37), so that the inlet and outlet water conduits (24) under the control valve (25) reversely flush the filter cartridge, so that the impurities blocked by the filter plate (35) are reversely flushed down and discharged through the sewage pipe (38). When the second L-shaped swing arm (56) enters the toggle groove (59) in the triangular rotating block (50), the coarse filter cartridge (30) is reset, and the filter plate (35) is flushed back and forth; Step 4: When the rotating rod (43) drives the half gear (61) to rotate during the rotation process, and the half gear (61) is engaged with the rack plate (69) in the fixed cylinder (60), the half gear (61) drives the movable column (63) on the rack plate (69) to press down to store force on the telescopic spring (62). When the half gear (61) is separated from the rack plate (69), the telescopic spring (62) stores force and drives the movable column (63), the movable rod (64) and the arc-shaped movable rod (64) to knock the base ring (33) at intervals, so that the impurities plugged in the holes on the filter plate (35) are vibrated and fall during reverse flushing, and the impurities are discharged.

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