Single-groove uncovering type full-automatic ultrasonic dish-washing machine

Abstract

A cleaning tank with the horizontal or inclined bottom serves as a main body, an ultrasonic cleaning device and a spraying cleaning device are installed, a multifunctional cover is arranged above the cleaning tank, the multifunctional cover comprises a turnover type cover, a translation type cover and a lifting type cover, an auxiliary water tank is arranged, the auxiliary water tank is used for recycling water used for cleaning a part of devices, and the auxiliary water tank is used for recycling water used for cleaning a part of the devices. A water outlet is formed in the lowest position of the bottom of the cleaning tank, is provided with an electromagnetic valve or a pneumatic valve, is controlled by a control system and is used for discharging water out of the machine or the auxiliary water tank; a tableware turning device is arranged in the cleaning tank, and the control system controls the cleaning devices and the tableware turning device to operate in sequence. All cleaning functions are integrated in one cleaning tank, so that labor is saved, and the site requirement of equipment is reduced.

Description

Technical Field

[0001] The present invention relates to a dishwasher, in particular to a single-tank lid-lifting type full-automatic ultrasonic dishwasher that uses a single tank to achieve automatic cleaning. Background Art

[0002] In ultrasonic cleaning, since the workpiece is immersed in water for cleaning, there are no dead angles in the 360° all-round cleaning, while there are inevitably dead angles in spray cleaning. Therefore, dishwashers with ultrasonic cleaning are cleaner and more popular. However, for the workpiece conveyor belt to enter and exit the water bath cleaning section and the water tank of the ultrasonic cleaning section of the dishwasher, it must gradually descend to enter the bottom of the water bath cleaning tank and the ultrasonic cleaning tank, and then gradually rise to exit from the water bath cleaning tank and the ultrasonic cleaning tank. The conveyor belt transmission is complex, the equipment manufacturing cost is high, especially the equipment is too long and the workpieces are prone to being disordered.

[0003] For example, in CN201120399806.4, an immersion and cleaning integrated device includes an immersion tank and a workpiece dishwasher connected as a whole. A conveyor belt is provided in the immersion tank, and the conveyor belt extends into the workpiece dishwasher. The starting end of the conveyor belt is arranged below the liquid level in the immersion tank, and the other end of the conveyor belt gradually rises towards the entrance of the workpiece dishwasher to transfer the immersed workpieces into the workpiece dishwasher for cleaning. A spraying mechanism is provided in the immersion tank, and an ultrasonic device is installed in the immersion tank.

[0004] Moreover, in CN201520873078.4, a full-automatic dishwasher for pouring workpieces for cleaning is composed of a water bath pre-washing section and a belt-type dishwasher connected. The water bath pre-washing section is installed at the front end of the belt-type dishwasher as the workpiece inlet end, and its conveyor belt is connected to the conveyor belt of the slag removal and pre-washing section of the belt-type dishwasher or to the conveyor belt of the belt-type dishwasher as a whole section.

[0005] For another example, patent ZL201220320085.8 provides a conveyor belt and its rotating mechanism for an automatic transmission continuous cleaning ultrasonic dishwasher, which is characterized in that: it includes a plurality of turning devices and a closed conveyor belt. The conveyor belt surrounds each turning device in the dishwasher for one week. The installation positions of the turning devices are respectively located at: the upper and lower parts of the dishwasher inlet, the upper and lower parts of the connection between the spray slag removal section and the ultrasonic cleaning tank, both ends of the bottom in the ultrasonic cleaning tank, the upper and lower parts of the connection between the ultrasonic cleaning tank and the spray rinsing section, the lower part of the connection between the spray rinsing section and the drying section, and the upper and lower parts of the dishwasher conveyor belt outlet.

[0006] For another example, Patent ZL202110167519.9 provides a fully automatic basket conveyor dead-angle self-cleaning dishwasher, including a cleaning and drying box, characterized in that: no less than 1 cleaning and drying box is installed on one or more closed conveyor chains, and the cleaning and drying box follows the conveyor chain and circulates once around no less than 2 turning devices in the dead-angle self-cleaning dishwasher. Driven by the power device, the conveyor chain and the cleaning and drying box circulate in the dishwasher; the 2 turning devices located at the inlet and outlet of the dishwasher respectively divide the conveyor chain and the cleaning and drying box into upper and lower layers, and the cleaning and drying box follows the upper or lower layer of the conveyor chain through all functional sections of the dishwasher; at least one of the top, bottom or side of the cleaning and drying box is provided with a positioning member, and the number of positioning members of each cleaning and drying box is not less than one.

[0007] None of the above technologies involve automated ultrasonic cleaning equipment suitable for occasions with a small site area. Summary of the Invention

[0008] In order to solve the problems of complex transmission of ultrasonic dishwashers, high equipment manufacturing costs, especially long length and large floor area, etc., the present invention provides a cleaning and drying box type dead-angle cleaning system to make up for the deficiencies of the prior art.

[0009] The technical solution of the present invention is: a single-tank lid-opening type fully automatic ultrasonic dishwasher, including a tableware turning device and a multi-functional lid, characterized in that: with a cleaning tank with a horizontal or inclined bottom as the main body, ultrasonic cleaning and spray cleaning devices are installed, and a multi-functional lid is provided above the cleaning tank to cover the cleaning tank and prevent water splashing during spray cleaning. Its types include flipping type, translation type, and lifting type;

[0010] Further, the flipping type multi-functional lid is hinged to the cleaning tank or the frame through a hinge, and is driven to flip manually or by a lifting mechanism; the translation type multi-functional lid is arranged on the track on the upper edge of the cleaning tank or the frame, and is driven to move on the track manually or by a translation mechanism; the lifting type multi-functional lid is installed on a lifting mechanism, and the lifting mechanism is arranged on the cleaning tank or the frame, and the lifting mechanism drives it to lift and lower; the lifting mechanism and the translation mechanism generally include electric push rods, cylinders, electromagnets, cylinders, chain drives, rack and pinion mechanisms, worm and worm gear mechanisms, hydraulic mechanisms, etc.

[0011] Further, when the flipping type multi-functional lid flips upward, the translation type multi-functional lid moves backward or to the side, and the lifting type multi-functional lid rises, the multi-functional lid leaves the upper edge of the cleaning tank, that is, the cleaning tank is opened, and tableware can be put into the cleaning tank, taken out of the cleaning tank, or the cleaning tank can be cleaned, etc.; when the flipping type multi-functional lid flips downward, the translation type multi-functional lid moves into the cleaning tank, and the lifting type multi-functional lid descends, covering the cleaning tank. At this time, the cleaning device is started to clean and dry the tableware in the cleaning tank;

[0012] Furthermore, the nozzles of the spray cleaning device are arranged on the multi-functional cover. The number of the nozzles is multiple, their directions are downward, and they are connected to the water outlet of the water pump. At the same time, at least one of the bottom and side surfaces of the cleaning tank is also provided with multiple nozzles, and their directions are upward and towards the middle of the cleaning tank respectively. That is, all the nozzles are directed towards the tableware in the cleaning tank.

[0013] Furthermore, the cleaning tank is provided with an ultrasonic cleaning device. The composition and installation type of the ultrasonic cleaning device include: not less than 1 ultrasonic transducer is installed at least at one position of the bottom and side surfaces of the cleaning tank, or an ultrasonic vibration plate is installed at least at one position of the bottom and side surfaces in the cleaning tank. All the transducers or ultrasonic vibration plates are electrically connected to the ultrasonic generator. The tableware is immersed in the water in the ultrasonic cleaning tank. The grease on the surface of the tableware can be emulsified through the cavitation effect of ultrasonic waves, and 360° dead-angle-free cleaning of the tableware can be achieved.

[0014] Furthermore, a secondary water tank is provided. Its installation positions include: below or on the side of the cleaning tank. The secondary water tank is used to recycle the water used for cleaning by some devices, including: the water used for ultrasonic cleaning, partial spray cleaning, and pure water rinsing, etc., and is used for re-spray cleaning or ultrasonic cleaning. Usually, a slag filtering device is provided above the secondary water tank. The water pump extracts the water from the secondary water tank through the water inlet, and after being pressurized by the water pump, it is sprayed towards the tableware direction through the water outlet and the connecting pipeline via the nozzles.

[0015] Furthermore, a drain port is provided at the lowest position of the bottom of the cleaning tank. The drain port is provided with an electromagnetic valve or a pneumatic valve and is controlled by the control system for draining water to the outside of the machine or the secondary water tank.

[0016] Furthermore, a tableware turning device is provided in the cleaning tank. The types of the tableware turning device include: bottom basket type, stirring type, and push plate type. Its drive is electric or pneumatic. Its operation modes include: intermittent start or continuous start. The intermittent operation frequency is 1 time / 5 minutes to 100 times / minute. Through the turning action of the tableware turning device, the state of the tableware changes, so as to clean the tableware from different angles. And when some tableware is facing upward, water is likely to be stored in the tableware. After turning, with the change of the state, the water in the tableware can be poured out, flowing to the bottom of the cleaning tank and discharged through the drain port, which is convenient for the next process to continue cleaning or drying.

[0017] Furthermore, a bubble cleaning device is provided or not. The bubble cleaning device includes an air pump, an air outlet or a nozzle, an air pipe, etc. The installation positions of the air outlet and the nozzle include: at one or more positions of the bottom and side surfaces of the cleaning tank. Both the ultrasonic cleaning device and the bubble cleaning device are immersion cleaning types, and the bubbles or ultrasonic waves are all directed towards the workpieces in the cleaning tank. Through water immersion and the bubble cleaning system to wash and clean the workpieces, the grease and residues on the workpieces are greatly reduced, or the cavitation effect of ultrasonic waves on the tableware emulsifies the grease. Therefore, there are no dead angles during cleaning and the cleaning effect is good.

[0018] Further, a hot air drying device is provided or not provided for drying and disinfecting tableware; the heater of the hot air drying device is arranged in the cleaning tank and is made to convect and equalize heat through a heat equalizing fan arranged in the cleaning tank; or the heater is arranged outside the cleaning tank, and hot air is sent into the cleaning tank through a convection fan outside the cleaning tank, and the hot air outlet is at least at one of the multifunctional cover, the bottom of the tank, and the side; arranging the heater outside the cleaning tank can prevent the impact of spray cleaning on the heater, and it is usually arranged in a convective ventilation duct or in a separately provided box through which the ventilation duct passes; the hot air outlet arranged on the multifunctional cover is connected to the convection fan through a hose or a rotating union.

[0019] Further, the control system controls the sequential operation of each cleaning device and the tableware turning device. The cleaning devices provided in the dishwasher include: spray slag removal pre-washing, bubble cleaning, ultrasonic cleaning, spray cleaning, hot air drying, etc.

[0020] The structure of the bottom basket type tableware turning device includes: a bottom basket slightly smaller than the bottom surface of the cleaning tank is arranged in the cleaning tank for carrying tableware. The bottom basket is of a mesh or porous structure, with or without a border around it. At least one end of the bottom basket is installed with a lifting device, which stirs the tableware through the lifting and tilting of the bottom basket. When the bottom basket is at the bottom, the lifting device raises one end to near the upper edge of the cleaning tank, and the other end remains stationary or rises to a lower height, causing the bottom basket to tilt, and the tableware flips from the higher end to the lower end, playing a role in flipping and turning the tableware. Some tableware contains water, and as the state of the tableware changes after flipping, the water in the tableware can be poured out; the bottom basket is provided with or without a tray and a plate positioning mechanism. When the tableware turning device operates, the positioning mechanism clamps the tray and the plate to position them, preventing the tray and the plate from overlapping each other and blocking small tableware such as small bowls and saucers. The positioning mechanism usually includes multiple thorns, bayonets or multiple compartments, etc. The mesh or porous structure facilitates the penetration of spray or bubble water flow and ultrasonic waves for cleaning; when lifting devices are installed at both ends of the bottom basket, after cleaning, the lifting devices at both ends are simultaneously lifted above the upper edge of the cleaning tank, which can directly slide out the tableware; the lifting device usually includes an electric push rod, a cylinder, an electromagnet, a cylinder, a chain drive, a gear rack mechanism, a worm gear mechanism, a screw slider, a hydraulic mechanism, etc.

[0021] The structure of the stirring type tableware turning device includes: a stirring wheel or a stirring rod rotates under the drive of a power mechanism, and the installation angle of its rotating shaft includes: vertical, horizontal, and inclined, and the rotation direction includes forward and reverse rotation; the power mechanism usually includes a motor. The stirring wheel or the stirring rod stirs the tableware, causing the state of the tableware to change, and the water in the tableware can be poured out.

[0022] The structure of the pusher plate type tableware turning device includes: an inclined pusher plate with a high middle and low sides on both sides, placed at the bottom of the cleaning tank, and pushed back and forth to both sides under the drive of a power mechanism or manually, so that the tableware is turned up and down and left and right under the push of the inclined surface of the pusher plate, changing the state of the tableware and pouring out the water in the tableware; the power mechanism usually includes an electric push rod, a cylinder, an electromagnet, a cylinder, a chain drive, a rack and pinion mechanism, a worm and worm gear mechanism, a screw and slider, a hydraulic mechanism, etc.

[0023] The connection methods of the spray nozzles on the multifunctional cover to the water outlet of the water pump include: a hose or a rotating union. In particular, at the same time, it eliminates the need for manual placement of tableware.

[0024] A preferred operation process is as follows: First, pour in the tableware and close the multifunctional cover. In the first step, spray and slag removal pre-washing is carried out. At this time, the tableware turning device is started, and the tableware is turned to reduce the spray dead angle. Because there are more residues on the tableware, when spraying and cleaning, the solenoid valve or pneumatic valve at the bottom of the cleaning tank is opened, and the water is directly discharged outside the machine. Usually, a slag filtering device is provided outside the dishwasher. In the second step, bubble cleaning is carried out. The solenoid valve or pneumatic valve at the bottom of the cleaning tank is closed, and the spraying continues. The water in the cleaning tank gradually fills up. At this time, the tableware turning device may or may not be started to further pre-wash the tableware and remove the residues on the surface of the tableware. In the third step, ultrasonic cleaning is carried out. The water from the previous step is discharged or retained, and the ultrasonic cleaning is started. At this time, the tableware turning device may or may not be started. The solenoid valve or pneumatic valve at the bottom of the cleaning tank is opened, and the water is discharged to the secondary water tank, that is, recycled to the secondary water tank. Because the water for ultrasonic cleaning is relatively clean, it is recycled for the next spray pre-washing or ultrasonic cleaning, etc. In the fourth step, spray rinsing is carried out. After the water for ultrasonic cleaning is basically emptied, spray rinsing is started. The solenoid valve or pneumatic valve at the bottom of the cleaning tank remains open, and the water is discharged to the secondary water tank, that is, recycled to the secondary water tank. The water for spray rinsing is relatively clean, and it is recycled for the next spray pre-washing or ultrasonic cleaning, etc. At this time, the tableware turning device may or may not be started. In the fifth step, clear water rinsing is carried out. The solenoid valve or pneumatic valve at the bottom of the cleaning tank remains open, and the water is discharged to the secondary water tank, that is, recycled to the secondary water tank. The water for clear water rinsing is relatively clean, and it is recycled for the next spray pre-washing or ultrasonic cleaning, etc. At this time, the tableware turning device may or may not be started. In the sixth step, drying and disinfection are carried out. The solenoid valve or pneumatic valve at the bottom of the cleaning tank remains open. At this time, the tableware turning device may or may not be started. The hot air drying and disinfection device is started. After drying and disinfection are completed, the multifunctional cover is opened, the tableware turning device is raised, and the tableware is taken out; repeating the above process can achieve a large amount of tableware cleaning.

[0025] Both the ultrasonic cleaning device and the bubble cleaning device are immersion cleaning, so there are no dead angles during cleaning and the cleaning effect is good.

[0026] The advantages of the present invention are obvious. Not only can the tableware be cleaned without dead corners and with good cleaning effect through ultrasonic cleaning, but also the entire cleaning process is automatically completed without the need for placement. The tableware can be poured into the cleaner, saving labor. In particular, all cleaning functions are concentrated in one cleaning tank, eliminating the need for the tableware conveyor belt to enter and exit the water bath cleaning section and the ultrasonic cleaning section of the water tank. There is no need to gradually descend or ascend to enter and exit the cleaning tank, avoiding tableware disorder and reducing the length of the equipment, thereby reducing the site requirements for the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the first overall structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the second overall structure of the present invention.

[0030] Figure 3 It is a schematic diagram of the third overall structure of the present invention.

[0031] Figure 4 It is a schematic diagram of the fourth overall structure of the present invention.

[0032] Figure 5 It is a schematic diagram of the fifth overall structure of the present invention.

[0033] Figure 6 It is a schematic diagram of the sixth overall structure of the present invention.

[0034] Figure 7 It is a schematic diagram of the seventh overall structure of the present invention.

[0035] Figure 8 It is a schematic diagram of the eighth overall structure of the present invention.

[0036] In the figure: 1. cleaning tank; 2. frame; 3. drain outlet; 4. solenoid valve or pneumatic valve; 5. switch; 10. bottom of the cleaning tank; 11. transducer; 12. ultrasonic generator; 20. secondary water tank; 21. spray pipe and nozzle on the multi-functional cover; 22. spray pipe and nozzle at the bottom of the cleaning tank; 23. water pump; 24. water pump inlet pipe; 25. water pump outlet pipe; 26. hose; 31. stirring wheel or stirring rod; 32. stirring motor; 34. bottom basket; 35. frame; 36. bottom basket lifting device; 37. dinner plate tray bayonet; 38. drive chain of the inclined push plate; 39. inclined push plate; 41. translation type upper cover; 42. track; 51. flip type multi-functional cover; 52. hinge; 61. lifting type multi-functional cover; 62. lifting mechanism; 71. hot air outlet; 72. heater; 73. additional box body; 81. air pump; 82. air outlet or nozzle; 83. air pipe. DETAILED DESCRIPTION OF THE INVENTION

[0037] The present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited to these specific embodiments.

[0038] In Figure 1 the illustrated embodiment, on the cleaning tank 1 with a horizontal or inclined bottom, a translation type multi-functional cover 41 is arranged on the track 42 along the upper edge of the cleaning tank, and the track 42 is arranged on the frame 2; in the figure, the translation type multi-functional cover 41 is moved backward out of the cleaning tank, and the translation type multi-functional cover 41 leaves the upper edge of the cleaning tank; an ultrasonic cleaning device is installed, and its ultrasonic transducer 11 is installed at the bottom of the cleaning tank 1, and the ultrasonic generator 12 is installed below the cleaning tank 1; a spray cleaning device is provided, and the spray cleaning device is respectively provided with a spray pipe and a nozzle 21 on the multi-functional cover, and a spray pipe and a nozzle 22 at the bottom of the cleaning tank, and the nozzle directions are respectively downward and upward, both facing the tableware direction in the cleaning tank; all nozzles are connected to the water pump outlet 25 of the water pump 23 through a hose 26; a drain port 3 is provided at the bottom of the cleaning tank 11, and a secondary water tank 20 is provided below it, and the water pump inlet 24 is connected to the secondary water tank 20; a tableware turning device is arranged in the cleaning tank 1, which is of a stirring type, and its stirring wheel or stirring rod 31 is arranged at the bottom of the cleaning tank 1.

[0039] In Figure 2 the illustrated embodiment, the tableware turning device arranged in the cleaning tank 1 is of a push plate type, the inclined push plate 37 is high in the middle and low on both sides, the driving chain 38 of the inclined push plate is connected to the inclined push plate 37, and the rest of the structure is Figure 1 basically the same as that in the illustrated embodiment.

[0040] In Figure 3 the illustrated embodiment, the translation type multi-functional cover 41 moves into the upper part of the cleaning tank 1 on the track 42 to cover the cleaning tank 1; the switch 5 of the control system is arranged at the front part of the cleaning tank 1, and the rest of the structure is Figure 1 、 Figure 2 basically the same as that in the illustrated embodiment.

[0041] In Figure 4 the illustrated embodiment, the flip type multi-functional cover 51 is hinged to the cleaning tank 1 through a hinge 52, and is manually driven to flip; a hot air drying device is provided, and its heater 72 is arranged in another box body 73 outside the cleaning tank 1, and the hot air outlet 71 arranged on the flip type multi-functional cover 51 is connected to the convection fan through a hose or a rotating union; the rest of the structure is Figure 1 、 Figure 2 basically the same as that in the illustrated embodiment.

[0042] In Figure 5 、 Figure 6In the illustrated embodiment, a bottom basket 34 equivalent in size to the bottom surface of the cleaning tank 1 is provided in the cleaning tank 1. The bottom basket 34 is of a grid structure and is used to carry tableware. It is provided with a frame 35 around it. One end of the bottom basket 34 is equipped with a bottom basket lifting device 36, which plays a role in agitating the tableware through the lifting and tilting of the bottom basket; a dinner plate tray bayonet 37 is provided on the bottom basket 34; in Figure 6 In the illustrated embodiment, the bottom basket lifting device 36 raises one end to near the upper edge of the cleaning tank 1 while keeping the other end stationary, and the bottom basket 34 tilts, causing the tableware to flip from one end to the other, playing a role in flipping and turning the tableware; the remaining structures are Figure 1 the same as Figure 2 those of Figure 4 the illustrated embodiment.

[0043] In Figure 7 the illustrated embodiment, the lifting type multi-functional cover 61 is lifted and lowered under the drive of the lifting mechanism 62 to open or cover the cleaning tank 1, and the remaining structures are Figure 3 the same as those of the illustrated embodiment.

[0044] In Figure 8 the illustrated embodiment, the stirring wheel or stirring rod 31 inside rotates under the drive of the stirring motor 32 below the cleaning tank 1, and its rotating shaft is vertically installed; a bubble cleaning device is provided, and its air outlet or nozzle 82 is arranged at the bottom of the cleaning tank 1, and the air outlet or nozzle 82 is connected to the air pump 81 through an air pipe 83; above the auxiliary water tank 20 at the bottom of the cleaning tank 1, a drain port 3 is provided, and a solenoid valve or pneumatic valve 4 is provided at the drain port 3; the remaining structures are the same as those of the foregoing embodiments.

[0045] Finally, it should be noted that the above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A single-tank lid-opening type full-automatic ultrasonic dishwasher, comprising a tableware turning device and a multifunctional lid, characterized in that: With a cleaning tank with a horizontal or inclined bottom as the main body, an ultrasonic cleaning device and a spray cleaning device are installed. A multi-functional cover is provided above the cleaning tank, and its types include flip-type, translation-type, and lifting-type; Furthermore, the flip-type multi-functional cover is hinged to the cleaning tank or the frame by a hinge, and is driven to flip manually or by a lifting mechanism; The translation-type multi-functional cover is arranged on the track on the upper edge of the cleaning tank or the frame, and is driven to move on the track manually or by a translation mechanism; the lifting-type multi-functional cover is installed on a lifting mechanism, and the lifting mechanism is arranged on the cleaning tank or the frame, and the lifting mechanism drives it to lift and lower; Furthermore, the flip-type multi-functional cover flips upward, the translation-type multi-functional cover moves backward or to the side, and the lifting-type multi-functional cover rises upward. The multi-functional cover leaves the upper edge of the cleaning tank, that is, the cleaning tank is opened; the flip-type multi-functional cover flips downward, the translation-type multi-functional cover moves into the cleaning tank, and the lifting-type multi-functional cover descends to cover the cleaning tank; Furthermore, the nozzles of the spray cleaning device are arranged on the multi-functional cover. The number of the nozzles is multiple, and their directions are downward, and are connected to the water outlet of the water pump; at the same time, at least one of the bottom and side of the cleaning tank is also provided with multiple nozzles, and the directions are upward and towards the middle of the cleaning tank respectively; Furthermore, the cleaning tank is provided with an ultrasonic cleaning device; Furthermore, a secondary water tank is provided, and its installation positions include: below or on the side of the cleaning tank; Furthermore, a drain port is provided at the lowest part of the bottom of the cleaning tank, and the drain port is provided with a solenoid valve or a pneumatic valve and is controlled by a control system for draining water to the outside of the machine or the secondary water tank; Furthermore, a tableware turning device is arranged in the cleaning tank. The types of the tableware turning device include: bottom basket type, stirring type, and push plate type. Its drive is electric or pneumatic, and its operation modes include: intermittent start or continuous start, and the intermittent operation frequency is 1 time / 5 minutes to 100 times / minute; Furthermore, a bubble cleaning device is provided or not; Furthermore, a hot air drying device is provided or not; the heater of the hot air drying device is arranged in the cleaning tank, and is made to convect and evenly heat through a uniform heat blower arranged in the cleaning tank; or the heater is arranged outside the cleaning tank, and the hot air is sent into the cleaning tank through a convection blower outside the cleaning tank, and the hot air outlet is at least one of the multi-functional cover, the bottom of the tank, and the side; the heater is arranged outside the cleaning tank, and its positions include: inside the convective ventilation duct or in another provided box body through which the ventilation duct flows; the hot air outlet arranged on the multi-functional cover is connected to the convection blower through a hose or a rotating union; Furthermore, the control system controls the sequential operation of each cleaning device and the tableware turning device.

2. The single-tank lid-opening type full-automatic ultrasonic dishwasher according to claim 1, characterized in that: The structure of the bottom basket type tableware turning device includes: a bottom basket slightly smaller than the bottom surface of the cleaning tank is provided in the cleaning tank. The bottom basket is of a grid or porous structure, with or without a border around it. At least one end of the bottom basket is equipped with a lifting device. When the bottom basket is at the bottom, the lifting device raises one end to near the upper edge of the cleaning tank, and the other end remains stationary or rises to a lower height, causing the bottom basket to tilt, and the tableware flips from the higher end to the lower end. The bottom basket is provided with or without a tray and a tableware positioning mechanism. When the tableware turning device operates, the positioning mechanism clamps the tray and the tableware to position them. When lifting devices are installed at both ends of the bottom basket, after cleaning, the two lifting devices are simultaneously lifted above the upper edge of the cleaning tank, allowing the tableware to slide out directly.

3. The single-tank lid-opening type full-automatic ultrasonic dishwasher according to claim 1, wherein: The structure of the stirring type tableware turning device includes: a stirring wheel or a stirring rod rotates under the drive of a power mechanism, and the installation angle of its rotating shaft includes: vertical, horizontal, and inclined, and the rotation direction includes forward and reverse rotation.

4. The single-tank lid-opening fully automatic ultrasonic dishwasher according to claim 1, characterized in that: The structure of the push plate type tableware turning device includes: an inclined push plate with a high middle and low sides on both sides, placed at the bottom of the cleaning tank, and is pushed back and forth to both sides under the drive of a power mechanism or manually.

5. The single-tank lid-opening fully automatic ultrasonic dishwasher according to claim 1, characterized in that: The connection methods of the spray nozzles on the multifunctional cover to the water outlet of the water pump include: a hose or a rotating union.

6. The single-tank lid-opening type full-automatic ultrasonic dishwasher according to claim 1, characterized in that: A preferred operation process includes: Pour in the tableware, and after closing the multifunctional cover, the first step: spray slag removal and pre-washing. At this time, the tableware turning device is started to reduce dead corners. Because there is a lot of residue on the tableware, when spray cleaning, the solenoid valve or pneumatic valve at the bottom of the cleaning tank is opened to directly discharge the water outside the machine. Usually, a slag filtering device is provided outside the dishwasher. The second step: bubble cleaning. The solenoid valve or pneumatic valve at the bottom of the cleaning tank is closed, and the spraying continues. The water in the cleaning tank gradually fills up. At this time, the tableware turning device is started or not started to further pre-wash the tableware and remove the residue on the surface of the tableware. The third step: ultrasonic cleaning. The water from the previous step is discharged or retained, and ultrasonic cleaning is started. At this time, the tableware turning device is started or not started, and the solenoid valve or pneumatic valve at the bottom of the cleaning tank is opened to discharge the water to the secondary water tank, that is, recycled to the secondary water tank. Because the water for ultrasonic cleaning is relatively clean, it is recycled for the next spray pre-washing or ultrasonic cleaning, etc. The fourth step: spray rinsing. After the water for ultrasonic cleaning is basically emptied, spray rinsing is started. The solenoid valve or pneumatic valve at the bottom of the cleaning tank remains open, and the water is discharged to the secondary water tank, that is, recycled to the secondary water tank. The water for spray rinsing is relatively clean and is recycled for the next spray pre-washing or ultrasonic cleaning, etc. At this time, the tableware turning device is started or not started. The fifth step: clean water rinsing. The solenoid valve or pneumatic valve at the bottom of the cleaning tank remains open, and the water is discharged to the secondary water tank, that is, recycled to the secondary water tank. The water for clean water rinsing is relatively clean and is recycled for the next spray pre-washing or ultrasonic cleaning, etc. At this time, the tableware turning device is started or not started. The sixth step: drying and disinfection. The solenoid valve or pneumatic valve at the bottom of the cleaning tank remains open. At this time, the tableware turning device is started or not started, and the hot air drying and disinfection device is turned on. After drying and disinfection are completed, the multifunctional cover is opened, the tableware turning device is raised, and the tableware is taken out. Repeating the above process can achieve a large amount of tableware cleaning.

Images