Food residue crushing and separation system for dishwasher

Abstract

The present invention discloses a food residue crushing and separation system for a dishwasher, comprising a trough body for the dishwasher, wherein the upper end surface of the drain outlet is provided with a stepped internal threaded notch, the upper end surface of the stepped portion of the stepped internal threaded notch is provided with a flushing pipe, a filter cartridge is inserted into the drain outlet, an annular water cavity is provided on the upper portion of the filter cartridge, and a cleaning water hole is arranged on the inner ring wall of the filter cartridge; a crushing cutter bar frame is rotatably provided and penetrates the bottom end surface of the filter cartridge, and a transmission assembly is provided between the bottom end of the crushing cutter bar frame and the bottom end of the rotating rod. Water flowing through the water conduit indirectly drives the crushing cutter bar frame to rotate through rotating blades, a rotating rod, a driving gear, and a driven gear, thereby achieving the characteristic of crushing the residue inside the filter cartridge in a power-off state; the pressurized water flowing through the water conduit passes through the flushing pipe and the annular water cavity in sequence and is discharged from the cleaning water hole end, cleaning the dirt adhering to the inner wall of the filter cartridge and the outer surface of the crushing cutter bar frame, thereby achieving the function of cleaning the inner wall of the filter cartridge.

Description

Technical Field

[0001] The invention belongs to the technical field of dishwashers, and in particular relates to a food residue crushing and separation system for a dishwasher. Background Art

[0002] A household dishwasher is a machine used at home to wash dishes, cutlery and other household products. It can generally be divided into two types according to the washing method: nozzle-type dishwashers and impeller-type dishwashers. Nozzle-type dishwashers are also called shower-type dishwashers. Their structures can be divided into different structures such as upper and lower rotating nozzle type, lower nozzle type, lower nozzle reflection type, tower nozzle type, porous tube type, rain bullet type, and rotary cylinder type. Although the structures are slightly different, their working characteristics are all based on the water splashing shower method, that is, using pressure nozzles to spray water columns to different sides and angles to fully wash the utensils on the machine rack.

[0003] For example, the Chinese patent with announcement number CN107970003A discloses an easy-to-clean dishwasher, comprising an upwardly opening trough, a panel for sealing the trough, a cleaning assembly arranged in the trough, a joint arranged on the side wall of the trough, a water inlet assembly connected to the joint, a drainage assembly, and a cabinet, wherein the trough is arranged on the upper part of the cabinet; the cleaning assembly comprises a water guide plate installed above the water pumping area and a filter element for filtering the washing water; the water guide plate is provided with a drain hole; the filter element is a bottomless structure, which is installed below the water guide plate, the upper opening of the filter element is communicated with the drain hole, and the lower opening of the filter element is connected to a debris crusher, which is installed below the water pumping area; the washing water falling into the water guide plate drives food residues to pass through the drain hole and enter the filter element for filtration, and then the food residue falls into the debris crusher, and the washing water flows into the water pumping area, thereby realizing the separation of residue and water.

[0004] However, the above solution has the following shortcomings: the above-mentioned prior art crushes and discharges the discharged residue by the rotation of the slag crushing motor, but it is necessary to ensure the water sealing of the rotating part between the output shaft end of the slag crushing motor and the separation drum. The use of the slag crushing motor will undoubtedly increase the cost of the dishwasher, and the slag crushing motor will generate noise on the main body when working. If a silent motor is used, the cost will also increase; and there is no cleaning structure for the separation drum on the upper part of the motor, which makes it easy for sticky dirt to accumulate in the separation drum during long-term use. How to crush the residue flowing into the separation drum at a low cost without electricity while cleaning the inner surface of the separation drum is a problem that needs to be solved at present.

[0005] To this end, we propose a food residue crushing and separation system for a dishwasher to solve the problems mentioned in the above background technology. Summary of the Invention

[0006] The object of the present invention is to provide a food residue crushing and separation system for a dishwasher to solve the problems existing in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a food residue crushing and separation system for a dishwasher, comprising a tank body for the dishwasher, wherein the bottom end surface of the tank body wall is respectively provided with a rotating spray arm and a drain outlet, a water guide pipe detachably connected to the water inlet end of the rotating spray arm is provided in the dishwasher tank body, and the water outlet side of the drain outlet is connected to a waste water pipe, the upper end surface of the drain outlet is connected to a stepped internal threaded notch, a flushing pipe connected to the water guide pipe is fixedly provided on the upper end surface of the stepped portion of the stepped internal threaded notch, and an electrically controlled valve body for opening and closing control is provided on the flushing pipe, a filter cartridge is inserted into the drain outlet, an annular water cavity connected to the water outlet end of the flushing pipe is provided on the upper portion of the filter cartridge, and clean water holes connected to the annular water cavity are circumferentially arranged on the inner ring wall of the filter cartridge;

[0008] The bottom end surface of the filter cartridge is provided with a crushing knife rod rack that rotates vertically through a bearing hole. The water outlet side of the water pipe is provided with a rotating blade, and a rotating rod is provided at the bottom end of the rotating blade. A transmission assembly is provided between the bottom end of the crushing knife rod rack and the bottom end of the rotating rod to crush the residue inside the filter cartridge.

[0009] Preferably, the upper and lower side walls of the filter cartridge are respectively provided with a folded edge ring and a symmetrically arranged filter residue mesh port, the annular water cavity is arranged on the folded edge ring portion, the bottom end surface of the annular water cavity is connected to a positioning water receiving groove, and the water outlet end of the flushing pipe is inserted into the positioning water receiving groove and is connected to the annular water cavity.

[0010] Preferably, a fixed outer screw ring cover is inserted at the opening of the upper end of the filter cartridge and is threadedly connected to the stepped internal thread groove, and stepped holes are provided on both sides of the upper end surface of the fixed outer screw ring cover, and a return spring sleeve rod is inserted in the step hole, and a water push folding block is provided at the bottom end of the return spring sleeve rod, and a water sealing cover plate is provided on the upper end of the return spring sleeve rod on both sides. When the electric control valve body is in the open state, the water flow inside the water guide pipe is discharged from the cleaning water hole through the flushing pipe and the annular water cavity in turn. The clean water holes on both sides of the inner annular surface of the filter cartridge spray water flow to push the water push folding block to overcome the return spring sleeve rod and move downward, thereby driving the water sealing cover plate to move downward to water-seal the opening of the fixed outer screw ring cover. At this time, the water flow sprayed from the clean water hole is sprayed into the inner surface of the filter cartridge and the outer surface of the crushing knife bar frame in turn for cleaning.

[0011] Preferably, the transmission assembly includes a waterproof cover box arranged on the inner wall of the drain outlet, and a driving gear and a driven gear that mesh with each other are respectively arranged inside the waterproof cover box. The bottom end face of the crushing cutter bar frame is provided with a polygonal groove, and the upper end face of the driven gear is provided with a step pin column that rotates through a bearing hole and passes through the top wall of the waterproof cover box. The top of the step pin column is anti-rotationally inserted in the polygonal groove.

[0012] Preferably, the bottom end of the rotating rod passes through the bottom end surface of the water pipe and the top wall of the waterproof cover box in sequence through the bearing hole and is fixedly connected to the driving gear.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The water flowing through the water pipe will indirectly drive the crushing cutter bar frame to rotate through the rotating blades, rotating rod, driving gear, and driven gear. The high-speed rotation of the crushing cutter bar frame will crush the residue flowing into the end of the filter cartridge. The crushed fine residue will pass through the filter residue mesh port and be discharged from the wastewater pipe end, realizing the functional feature of crushing the residue inside the filter cartridge in the off-power state;

[0015] 2. The opening of the electric control valve body puts the flushing pipe into a conducting state, and then the pressurized water flowing through the water pipe passes through the flushing pipe and the annular water cavity in turn and is discharged from the cleaning water hole end. The water flow sprayed from the cleaning water hole end will clean the dirt adhering to the inner wall of the filter cartridge and the outer surface of the crushing knife bar frame. At the same time, the water flow sprayed from the cleaning water holes on both sides of the inside of the filter cartridge will push the water push folding block to overcome the reset spring sleeve rod and move downward. The downward movement of the reset spring sleeve rod causes the water sealing cover plate to cover and seal the opening at the upper end of the filter cartridge, so that when the clean water hole cleans the inside of the filter cartridge, the waste water containing dirt flushed out will pass through the filter residue mesh and be discharged into the wastewater pipe end, thereby realizing the function of cleaning the inner wall of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial cross-sectional schematic diagram of the tank area of the dishwasher of the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of the drainage outlet area;

[0018] Figure 3 for Figure 2 Schematic diagram of the water sealing cover plate structure when the annular water cavity is discharged into the water flow;

[0019] Figure 4 This is a schematic diagram of the filter cartridge of the present invention in half cross-section;

[0020] Figure 5 It is a schematic diagram of the matching structure of the rotating blade, rotating rod and driving gear of the present invention.

[0021] In the figure: 1. trough body; 2. rotating spray arm; 3. drain outlet; 4. water guide pipe; 5. waste water pipe; 6. stepped internal threaded notch; 7. flushing pipe; 8. electric control valve body; 9. filter cartridge; 10. annular water chamber; 11. cleaning water hole; 12. crushing cutter bar frame; 13. rotating blade; 14. rotating rod; 15. folded edge ring; 16. filter residue mesh port; 17. positioning water receiving trough port; 18. fixed external screw ring cover; 19. stepped hole; 20. reset spring sleeve rod; 21. water push folding block; 22. water sealing cover plate; 23. waterproof cover box; 24. driving gear; 25. driven gear; 26. polygonal groove; 27. stepped pin. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-5 , the present invention provides a technical solution:

[0024] Example 1:

[0025] The bottom end surface of the inner wall of the dishwasher is provided with a rotating spray arm 2 and a drain outlet 3. A water pipe 4 detachably connected to the water inlet end of the rotating spray arm 2 is provided in the dishwasher tank 1. The water pipe 4 is connected to an external tap water outlet head, and is used to provide a cleaning water source for the dishwasher through the water pipe 4. The outlet side of the drain outlet 3 is connected to a waste pipe 5, and the outlet end of the waste pipe 5 is connected to a kitchen floor drain. The upper end surface of the drain outlet 3 is connected with a stepped internal threaded notch 6. The maximum cross-sectional length of the drain outlet 3 is greater than the minimum cross-sectional length of the stepped internal threaded notch 6. A flushing pipe 7 connected to the water pipe 4 is fixedly provided on the upper end surface of the stepped portion of the stepped internal threaded notch 6. An electric control valve body 8 for opening and closing control is provided on the flushing pipe 7. The electric control valve body 8 is an electric stop valve. The power supply end of the electric control valve body 8 is connected to the external power supply of the dishwasher, and the control end of the electric control valve body 8 is electrically connected to the built-in PLC controller of the dishwasher. The rotating spray arm 2 in the dishwasher will After the residue on the rice bowl is cleaned into the drain outlet 3, the electric control valve body 8 is adjusted to the open state for 10 seconds under the condition that the water flows inside the water guide pipe 4. A filter cartridge 9 is inserted into the drain outlet 3. The upper part of the filter cartridge 9 is provided with an annular water cavity 10 connected to the water outlet end of the flushing pipe 7, and a cleaning water hole 11 connected to the annular water cavity 10 is arranged on the inner ring wall of the filter cartridge 9 in an annular direction. The water discharged through the flushing pipe 7 is finally discharged into the inner wall of the filter cartridge 9 through the cleaning water hole 11 to clean the adhered dirt. At the same time, a slag prevention net is embedded and fixed in the clean water hole 11, which prevents the residue inside the filter cartridge 9 from entering the annular water cavity 10 through the clean water hole 11. At the same time, the angle between the plane where the center line of the clean water hole 11 is located and the plane where the horizontal line is located is 70°. The above angle can be adaptively adjusted according to the longitudinal length of the filter cartridge 9, so that the water discharged from the clean water hole 11 can be sprayed into the inner surface of the filter cartridge 9 to the greatest extent, specifically, it can be sprayed into the middle area of the upper surface of the filter cartridge 9;

[0026] The bottom end surface of the filter cartridge 9 is provided with a crushing knife bar frame 12 that rotates vertically through the bearing hole. The crushing knife bar frame 12 is composed of a vertical rod and a crushing knife. When the crushing knife rotates, it can crush the internal residue of the filter cartridge 9. A rotating blade 13 is provided on the water outlet side of the water pipe 4. A rotating rod 14 is provided at the bottom end of the rotating blade 13, and a transmission component is provided between the bottom end of the crushing knife bar frame 12 and the bottom end of the rotating rod 14 to crush the internal residue of the filter cartridge 9. The transmission component can make the rotating blade 13 driven by the water flow inside the water pipe 4 to indirectly drive the crushing knife bar frame 12 to rotate.

[0027] Example 2:

[0028] Based on the first embodiment, it is further explained that a folded edge ring portion 15 and a symmetrically arranged filter residue mesh port 16 are respectively provided on the upper and lower side walls of the filter cartridge 9. The setting of the folded edge ring portion 15 makes the upper portion of the filter cartridge 9 a T-shaped structure, and the annular water chamber 10 is provided on the folded edge ring portion 15. A positioning water receiving groove 17 is provided on the right side of the bottom end surface of the annular water chamber 10. The water outlet end of the flushing pipe 7 is inserted into the positioning water receiving groove 17 and is connected to the annular water chamber 10. A controllable flow of water is discharged into the annular water chamber 10 through the flushing pipe 7. The specific amount of water can be obtained by adaptively adjusting the opening and closing amount of the electric control valve body 8.

[0029] Example 3:

[0030] On the basis of embodiment 1, it is further explained that a fixed outer screw ring cover 18 is inserted into the opening of the upper end of the filter cartridge 9 and is threadedly connected to the step internal thread groove 6. The lower part of the fixed outer screw ring cover 18 can limit and fix the upper part of the filter cartridge 9. Step holes 19 are provided on both sides of the upper end surface of the fixed outer screw ring cover 18. A return spring sleeve rod 20 is inserted into the step hole 19. The bottom end of the return spring sleeve rod 20 is welded or clamped with a water push flange block 21. The water push flange block 21 is an L-shaped structure, and the water push flange block 21 is located below the inner side of the corresponding clean water hole 11 on both sides of the inner wall of the filter cartridge 9. The upper ends of the return spring sleeve rods 20 on both sides are provided with water sealing cover plates 22, and the water sealing cover plates 22 are at the bottom. After the shift state, the upper end opening of the fixed outer screw ring cover 18 can be covered and sealed. When the electric control valve body 8 is in the open state, the water flow in the water guide pipe 4 is discharged from the cleaning water hole 11 through the flushing pipe 7 and the annular water cavity 10 in turn. The cleaning water holes 11 on both sides of the inner ring surface of the filter cartridge 9 spray water to push the water push folding block 21 to overcome the reset spring sleeve rod 20 and move downward, thereby driving the water sealing cover plate 22 to move downward to water-seal the opening of the fixed outer screw ring cover 18. At this time, the water flow sprayed from the cleaning water hole 11 is sprayed into the inner surface of the filter cartridge 9 and the outer surface of the crushing knife rod holder 12 in turn for cleaning, effectively avoiding the residue being flushed out of the opening of the filter cartridge 9 when the cleaning water hole 11 sprays water to clean the inner wall of the filter cartridge 9.

[0031] Example 4:

[0032] The transmission assembly is further described on the basis of the first embodiment. The transmission assembly includes a waterproof cover box 23 provided on the inner wall of the drain outlet 3. The right side of the waterproof cover box 23 is embedded and fixed on the right side of the inner wall of the drain outlet 3. The inside of the waterproof cover box 23 is provided with a driving gear 24 and a driven gear 25 that mesh with each other. The diameter of the driving gear 24 is larger than the diameter of the driven gear 25. The bottom end surface of the crushing cutter bar frame 12 is provided with a polygonal groove 26. The upper end surface of the driven gear 25 is provided with a step that rotates through the top wall of the waterproof cover box 23 through the bearing hole. The pin 27 and the stepped pin 27 are composed of a lower cylinder and an upper square column. The top of the stepped pin 27 is anti-rotationally inserted into the polygonal groove 26. The above arrangement enables the crushing cutter bar frame 12 to rotate through the stepped pin 27 when the driven gear 25 rotates; the bottom end of the rotating rod 14 passes through the bottom end surface of the water pipe 4 and the top wall of the waterproof cover box 23 in sequence through the bearing hole and is fixedly connected to the driving gear 24. The water flowing through the inside of the water pipe 4 flows through the rotating blades 13 to drive the driving gear 24 on the rotating rod 14 to rotate.

[0033] The working principle is as follows: when using the dishwasher, the operator inserts the filter cartridge 9 into the end of the drain outlet 3, and makes the polygonal groove 26 and the step pin 27 on the bottom end surface of the crushing cutter bar frame 12 on the filter cartridge 9 cooperate and fix, and the positioning water receiving groove 17 located on the upper folded edge ring 15 of the filter cartridge 9 is connected with the water outlet end of the flushing pipe 7. At the same time, the fixed outer screw ring cover 18 is inserted into the upper end opening of the filter cartridge 9 and is connected and fixed with the step inner thread groove 6. The opening gap of the electric control valve body 8 is adjusted by the built-in PLC controller of the dishwasher so that it opens for 10 seconds after the rotating spray arm 2 flushes the residue into the filter cartridge 9. When in use, The water conduit 4 receives tap water from the outside and sprays it from the rotating spray arm 2 under the pressure of the built-in water pump to clean the residue on the dishes in the dishwasher. The washed residue will be collected in the filter cartridge 9. During the above process, the water flowing through the water conduit 4 will indirectly drive the crushing cutter bar frame 12 to rotate through the rotating blades 13, the rotating rod 14, the driving gear 24, and the driven gear 25. The high-speed rotation of the crushing cutter bar frame 12 will crush the residue flowing into the end of the filter cartridge 9. The crushed fine residue will pass through the filter residue mesh port 16 and be discharged from the end of the waste water pipe 5, realizing the functional feature of crushing the residue inside the filter cartridge 9 in the off-power state;

[0034] After the rotating spray arm 2 cleans the residue on the dishes and collects it in the filter cartridge 9, the built-in PLC controller of the dishwasher drives the electric control valve body 8 to open for 10 seconds. The opening of the electric control valve body 8 puts the flushing pipe 7 into a conducting state, and then the pressurized water flowing through the water pipe 4 passes through the flushing pipe 7 and the annular water cavity 10 in turn and is discharged from the cleaning water hole 11 end. The water flow sprayed from the cleaning water hole 11 end will clean the inner wall of the filter cartridge 9 and the outer surface of the crushing knife bar frame 12 to clean the dirt adhered to the inner wall of the filter cartridge 9 and the outer surface of the crushing knife bar frame 12. At the same time, the water flow sprayed from the cleaning water holes 11 on both sides of the filter cartridge 9 will push the water push folding block 21 to overcome the reset spring sleeve rod 20 and move downward, resetting The downward movement of the spring sleeve rod 20 causes the water sealing cover plate 22 to cover and seal the upper end opening of the filter cartridge 9, so that when the clean water hole 11 cleans the inside of the filter cartridge 9, the waste water containing dirt flushed out will pass through the filter residue mesh port 16 and be discharged into the end of the waste water pipe 5. At the same time, the high-pressure clean water discharged through the clean water hole 11 avoids the blockage of the filter residue mesh port 16. After the flushing is completed, the electric control valve body 8 is closed, and the water sealing cover plate 22 moves upward under the action of the reset spring sleeve rod 20, so that the new waste water generated in the tank body 1 is discharged through the gap between the opening of the fixed outer screw ring cover 18 and the water sealing cover plate 22, thereby realizing the function of cleaning the inner wall of the filter cartridge 9.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A food residue crushing and separation system for a dishwasher, comprising a tank body (1) for the dishwasher, wherein the bottom end surface of the inner wall of the tank body (1) is respectively provided with a rotating spray arm (2) and a drain outlet (3), wherein a water guide pipe (4) detachably connected to the water inlet end of the rotating spray arm (2) is provided in the tank body (1) of the dishwasher, and the water outlet side of the drain outlet (3) is connected to a waste water pipe (5), characterized in that: The upper end surface of the drain port (3) is connected to a stepped internal threaded notch (6), a flushing pipe (7) connected to the water guide pipe (4) is fixedly provided on the upper end surface of the stepped portion of the stepped internal threaded notch (6), and an electrically controlled valve body (8) for opening and closing control is provided on the flushing pipe (7), a filter cartridge (9) is inserted into the drain port (3), an annular water cavity (10) connected to the water outlet end of the flushing pipe (7) is provided on the upper portion of the filter cartridge (9), and clean water holes (11) connected to the annular water cavity (10) are circumferentially arranged on the inner ring wall of the filter cartridge (9); The bottom end surface of the filter barrel (9) is provided with a crushing blade rack (12) which is rotated vertically through a bearing hole, and a rotating blade (13) is provided on the water outlet side of the water guide pipe (4) to supply water to the rotating spray arm (2), a rotating rod (14) is provided at the bottom end of the rotating blade (13), and a transmission assembly is provided between the bottom end of the crushing blade rack (12) and the bottom end of the rotating rod (14) to crush the residue inside the filter barrel (9).

2. The food residue crushing and separation system for a dishwasher according to claim 1, characterized in that: The upper side wall of the filter cartridge (9) is provided with a folded edge ring portion (15), and the lower side wall of the filter cartridge (9) is symmetrically provided with a filter residue mesh port (16). The annular water cavity (10) is provided on the folded edge ring portion (15), and the bottom end surface of the annular water cavity (10) is connected to a positioning water receiving groove port (17). The water outlet end of the flushing pipe (7) is inserted into the positioning water receiving groove port (17) and is connected to the annular water cavity (10).

3. The food residue crushing and separation system for a dishwasher according to claim 1, characterized in that: A fixed outer screw ring cover (18) is inserted into the opening of the upper end of the filter cartridge (9) and is threadedly connected to the stepped inner screw groove (6). Step holes (19) are provided on both sides of the upper end surface of the fixed outer screw ring cover (18). A reset spring sleeve rod (20) is inserted into the step hole (19). A water-pushing folding block (21) is provided at the bottom end of the reset spring sleeve rod (20). Water sealing cover plates (22) are provided at the upper ends of the reset spring sleeve rods (20) on both sides. When the electric control valve body (8) is opened, the water flow inside the water guide pipe (4) is sequentially When the water is discharged from the cleaning water hole (11) through the flushing pipe (7) and the annular water cavity (10), the cleaning water holes (11) located on both sides of the inner ring surface of the filter cartridge (9) eject water flows to push the water push folding block (21) to overcome the elastic force of the return spring on the return spring sleeve rod (20) and move downward, thereby driving the water sealing cover plate (22) to move downward to perform water sealing on the opening of the fixed outer screw ring cover (18). At this time, the water flows ejected from the cleaning water holes (11) are sequentially sprayed into the inner surface of the filter cartridge (9) and the outer surface of the crushing cutter bar frame (12) for cleaning.

4. The food residue crushing and separation system for a dishwasher according to claim 1, characterized in that: The transmission assembly comprises a waterproof cover box (23) arranged on the inner side wall of the drain port (3), wherein a driving gear (24) and a driven gear (25) meshing with each other are respectively arranged inside the waterproof cover box (23), a polygonal groove (26) is provided on the bottom end surface of the crushing cutter bar frame (12), and a stepped pin (27) is provided on the upper end surface of the driven gear (25) and is rotated through a bearing hole and penetrates the top wall of the waterproof cover box (23), and the top of the stepped pin (27) is inserted into the polygonal groove (26) in an anti-rotation manner.

5. The food residue crushing and separation system for a dishwasher according to claim 4, characterized in that: The bottom end of the rotating rod (14) passes through the bottom end surface of the water pipe (4) and the top wall of the waterproof cover box (23) in sequence through the bearing hole and is fixedly connected to the driving gear (24).

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