Rotary spraying disc and rotary spraying dish-washing machine

Abstract

The utility model belongs to the technical field of dish-washing machines, and particularly relates to a rotary spraying disc and a rotary spraying dish-washing machine. The rotary spraying disc comprises a cylindrical cavity and an arc-shaped cavity formed in the cylindrical cavity, and the lower end of the cylindrical cavity is arranged on the outer ring of the bearing in a sleeving manner; the water inlet pipe is matched with the inner ring of the bearing; a spiral channel is formed in the upper part of the cylindrical cavity and is communicated to the arc-shaped cavity; and a first water spraying hole which is obliquely upwards opened is formed in the spiral channel. And a plurality of second water spraying holes with upward openings are formed in the cylindrical cavity. After water pressure enters the spiral channel, the spiral channel is impacted to enable the rotary spraying disc to automatically rotate, and water flow is sprayed out from the first water spraying hole and the second water spraying hole during automatic rotation to wash tableware. The rotary spraying disc is arranged at the bottom of the main water tank, tableware is washed upwards during rinsing, and chopsticks, spoons and other tableware cannot interfere with the rotating cylindrical rotary spraying disc.

Description

Technical Field

[0001] The utility model belongs to the technical field of dishwashers, and in particular relates to a rotary spraying plate and a rotary spraying dishwasher. Background Art

[0002] Traditional dishwashers require the sink to be completely drained after washing, and then rinsed with a full tank of water. This is slow and wastes a lot of water. To speed up the process, some dishwashers have rotating spray arms above the sink to rinse the dishes, but this often leaves the underside of the dishes poorly rinsed, resulting in an incomplete rinse.

[0003] If a rotating spray arm is also installed under the sink of the dishwasher, the rotating spray arm will interfere with the chopsticks, spoons and other tableware at the bottom. Utility Model Content

[0004] The purpose of the utility model is to overcome the defect in the prior art that tableware such as chopsticks and spoons at the bottom of the sink will interfere with the rotating spray arm, and to provide a small-sized non-powered rotating spray plate and a rotating spray dishwasher that can rotate around the central axis.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A rotary spray disc, characterized in that it includes a cylindrical cavity and an arc-shaped cavity arranged on the cylindrical cavity, the lower end of the cylindrical cavity is sleeved on the outer ring of the bearing; the water inlet pipe is installed in cooperation with the inner ring of the bearing; the upper part of the cylindrical cavity has a spiral channel, the spiral channel is connected to the arc-shaped cavity; the spiral channel has a first water spray hole that opens obliquely upward.

[0007] Furthermore, a plurality of second water spray holes opening upward are provided on the cylindrical cavity.

[0008] Furthermore, the angle between the central axis of the first water spray hole and the central axis of the cylindrical cavity is 30°-45°.

[0009] Furthermore, the angle between the central axis of the second water spray hole and the central axis of the cylindrical cavity is 0-45°.

[0010] The utility model also discloses a rotary spraying dishwasher, which comprises a rotary spraying plate, a main water tank and an upper spraying arm arranged above the main water tank.

[0011] Furthermore, the water flow is pressurized by a booster pump before the water inlet pipe enters the rotary spray disc.

[0012] The beneficial effects of the rotary spray plate and rotary spray dishwasher of the utility model are:

[0013] 1. When water pressure enters the spiral channel, the impact on the spiral channel causes the rotating spray disc to automatically rotate. As it rotates, water is ejected from the first and second spray holes to rinse the tableware. The rotating spray disc is placed at the bottom of the main sink. During rinsing, the tableware is rinsed upwards, and tableware such as chopsticks and spoons will not interfere with the rotating cylindrical rotating spray disc.

[0014] 2. The water before entering the rotating spray disc is pressurized by the booster pump, further enhancing the impact force of the water flow sprayed from the first and second water spray holes, thereby enhancing the flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic front view of a dishwasher according to an embodiment of the present invention;

[0017] Figure 2 1 is a schematic top view of a dishwasher according to an embodiment of the present invention;

[0018] Figure 3 This is an overall structural diagram of the rotary spray disc of an embodiment of the present utility model;

[0019] Figure 4 This is a diagram showing the internal structure of the cylindrical cavity of the rotary spray disk according to an embodiment of the present utility model;

[0020] Figure 5 This is a diagram showing the internal structure of the arc-shaped cavity of the rotary spray disk according to an embodiment of the present utility model;

[0021] Figure 6 It is a cross-sectional view of the rotary spray disc using the new embodiment.

[0022] In the figure: 1, main water tank, 2, upper spray arm, 21, spray head, 3, rotating spray disk, 31, cylindrical cavity, 32, arc cavity, 33, spiral channel, 34, first water spray hole, 35, second water spray hole, 4, hot air inlet, 5, hot air outlet, 6, ultrasonic generator, 7, drying and heating module, 71, heater, 72, air cavity, 8, small heat extraction fan, 9, hot air exchange box, 91, air inlet, 10, blower, 11, small water tank, 1 2. Water inlet pipe, 13. Hot air inlet duct, 14. Anti-backflow air duct, 15. Air nozzle, 16. Bottom air duct, 17. Air duct solenoid valve, 18. Low water level switch, 19. High water level switch, 20. Drain main pipe, 21. Oil overflow pipe, 22. Waste collection tank, 23. Control cabinet, 24. Sliding cover, 25. Overflow duct, 26. Overflow port, 27. Sink heating pipe, 28. Automatic drain ball valve, 29. Water inlet solenoid valve, 30. Partition screen. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0024] like Figures 1-6 The specific embodiment of the rotary spray dishwasher of the present invention shown in the figure includes: a main water tank 1, an upper spray arm 2 arranged above the main water tank 1, a plurality of rotating spray disks 3 arranged at the bottom of the main water tank 1, a hot air inlet 4 and a hot air outlet 5 arranged at the upper part of the main water tank 1, an air circulation system connecting the hot air inlet 4 and the hot air outlet 5, an ultrasonic generator 6 arranged in the main water tank 1, and a small water tank 11 arranged on the side of the main water tank 1.

[0025] See also Figure 3-6 The rotary spray disc 3 of the present invention is mounted on the water inlet pipe 12 through a bearing. The rotary spray disc 3 includes a cylindrical cavity 31 and an arc-shaped cavity 32 arranged on the cylindrical cavity 31. The lower end of the cylindrical cavity 31 is sleeved on the outer ring of the bearing; the water inlet pipe 12 is installed in conjunction with the inner ring of the bearing; the upper part of the cylindrical cavity 31 has a spiral channel 33, which is connected to the arc-shaped cavity 32; the spiral channel 33 has a first water spray hole 34 that opens obliquely upward.

[0026] As a preferred embodiment, the angle between the central axis of the first water spray hole 34 and the central axis of the cylindrical cavity 31 is 30°-45°.

[0027] A plurality of second water spray holes 35 opening upward are provided on the cylindrical cavity 31. Preferably, the angle between the central axis of the second water spray holes 35 and the central axis of the cylindrical cavity 31 is 15°-45°.

[0028] Since tap water itself has a certain water pressure, after the water inlet pipe 12 enters the spiral channel 33 of the rotating spray disc 3, the pressure of the incoming water impacts the spiral channel 33, causing the spiral spray disc to rotate automatically. While rotating automatically, water is sprayed out from the first water spray hole 34 and the second water spray hole 35 to rinse the tableware.

[0029] In order to ensure that the rotating spray disc 3 sprays water upward with greater spray force on the tableware, the water flow can be pressurized by a booster pump before the water inlet pipe 12 enters the rotating spray disc 3.

[0030] The upper spray arm 2 of the present invention comprises a single spray rod equipped with multiple spray heads 21 oriented in different directions. The spray rod is connected to the water inlet pipe 12 via a bearing. Due to the specific orientations of the spray heads 21, the upper spray arm 2 can rotate around the water inlet pipe 12 while spraying water under the action of tap water pressure. This type of rotatable upper spray arm 2 is relatively common in the art and will not be described in detail here.

[0031] To enhance dishwashing by spraying water upward from below, the present invention incorporates a rotating spray disc 3. This is because the bottom of the main sink 1 can often hold long items like chopsticks and spoons. Conventional rotating spray arms often jam the spray arm, but the present invention addresses this problem with a disc-shaped rotating spray disc 3. The top of the rotating spray disc 3 is curved or semicircular, and the diameters of the first and second spray holes 34 and 35 are small, preventing chopsticks from becoming lodged. Furthermore, the small rotational volume of the spray disc prevents interference with the tableware at the bottom of the main sink 1.

[0032] See also Figure 1 The air circulation system of the present invention includes a heat extraction fan 8 connected to the hot air outlet 5 by a pipe, a hot air exchange box 9 connected to the heat extraction fan 8 by a pipe, a blower 10 connected to the hot air exchange box 9 by a pipe, a drying and heating module 7 connected to the blower 10 by a pipe, a hot air inlet duct 13 connected to the hot air inlet 4, and a backflow prevention duct 14 connected between the hot air inlet duct 13 and the drying and heating module 7. The backflow prevention duct 14 is an arched duct with its top higher than the top of the main water tank 1. The hot air inlet duct 13 below the hot air inlet 4 has an air nozzle 15 that blows air toward the inside of the main water tank 1. A duct solenoid valve 17 is installed on the hot air inlet duct 13 between the air nozzle 15 and the hot air inlet 4. A bottom air duct 16 is provided on the bottom surface of the main water tank 1 and connected to the hot air inlet duct 13. The bottom air duct 16 also has multiple air nozzles 15 that blow air upward.

[0033] During the cleaning phase, the air duct solenoid valve 17 is closed, the drying and heating module 7 does not start heating, and the large blower 10 continues to operate to extract air, and the gas is ejected from the air nozzle 15 into the cleaning water in the main water tank 1, using the bubbling principle to speed up the cleaning. When the cleaning is completed, the blower 10 stops running. At this time, the water in the main water tank 1 will flow back into the hot air inlet duct 13 through the air nozzle 15. There is a risk that the water will flow back from the hot air inlet duct 13 into the blower 10 or the drying and heating module 7, affecting the service life of the blower 10 and the drying and heating module 7. The present invention sets an arched anti-backflow air duct 14 between the hot air inlet duct 13 and the blower 10. As long as the top of the anti-backflow air duct 14 is higher than the water surface, water will not flow back into the blower 10.

[0034] The drying and heating module 7 includes an air cavity 72 and a heater 71 disposed in the air cavity 72 . The blower 10 blows air into the air cavity 72 , and the heater 71 heats the air.

[0035] The main water tank 1 is equipped with a low water level switch 18 and a high water level switch 19. A water tank heating pipe 27 is also installed in the tank. A main drain pipe 20 is located below the main water tank 1. This main drain pipe 20 is connected to the main water tank 1 via an automatic drain ball valve 28. The drain pipe of the small water tank 11 is also connected to the main drain pipe 20. An oil overflow pipe 21 is also installed in the main water tank 1. The upper end of the oil overflow pipe 21 is at approximately the same height as the high water level switch 19, and the lower end is connected to the main drain pipe 20.

[0036] The utility model is designed with two water level switches. When water is put into the low water level switch 18, the program for heating the water in the main water tank 1 can be started, and then water can be added to the high water level switch 19 while heating, saving heating and the entire cleaning time.

[0037] The control electric cabinet 23 of the present invention can be arranged below the small water tank 11 to effectively utilize the product space.

[0038] The bottom surface of the main water tank 1 is designed as an inclined surface, and a sewage collection tank 22 is provided at the lowest end of the inclined surface. The sewage collection tank 22 is connected to the main drainage pipe 20.

[0039] The upper part of the main water tank 1 is sealed by two sliding covers 24 that slide against each other. The sliding covers 24 are hollow covers, which have a good heat preservation effect on the one hand, and prevent water droplets from splashing out during the dishwashing process on the other hand, and isolate noise.

[0040] An overflow port 26 is provided above the main water tank 1 , and the main water tank 1 is connected to the overflow port 26 through an overflow pipe 25 .

[0041] In order to ensure the orderly arrangement of the tableware, a plurality of parallel partitions 30 are provided in the main sink 1 to separate the rows of tableware.

[0042] The rotary spray plate 3 of the present invention is an automated device that can be used to wash tableware, vegetables, fruits, etc. Taking tableware washing as an example, the specific working process is as follows:

[0043] Cleaning phase: Drain water to the minimum water level switch 18, start the water tank heating pipe 27, and stop adding water after reaching the maximum water level. Start the ultrasonic generator 6, and use the ultrasonic transducer to emit high frequency to separate food residues, stains, pesticide residues, etc. After several minutes, start the blower 10 and inject fresh air into the water tank through the air nozzle 15. Using the bubbling principle, the residue can be quickly separated from the surface of the tableware. In addition, the separated oil stains are agitated by the water surface and overflow into the oil overflow pipe 21 and discharged directly. During the cleaning phase, the heat extraction fan 8, drying and heating module 7, and air duct solenoid valve 17 are closed.

[0044] After cleaning is completed, the ultrasonic generator 6 is stopped, the bubbling is stopped, and the automatic drainage ball valve 28 is opened to automatically drain the water.

[0045] Rinsing: Conventional methods often require a sink of hot water for rinsing. This new system uses a direct, upward and downward spraying system, saving significant water and energy. The water inlet solenoid valve 29 on the water inlet pipe 12 is activated to supply water to the upper spray arm 2 and the rotating spray plate 3. Clean water is then sprayed through the upper spray arm 2 and the rotating spray plate 3 to rinse the washed dishes.

[0046] Drying stage: Turn on the small heat extraction fan 8, blower 10, drying heating module 7, and air duct solenoid valve 17. The blower 10 draws air from the hot air exchange box 9 into the air cavity 72 of the drying heating module 7. After being heated into hot air, it is ejected from the air nozzle 15 and the hot air inlet 4 to dry the tableware. At the same time, the small heat extraction fan 8 sucks the hot air in the main water tank 1 out of the hot air outlet 5 into the hot air exchange box 9. Due to the contact between the hot air and the pipeline and the contact between the hot air and the air entering from the air inlet 91, small water droplets will be generated in the hot air exchange box 9 after condensation. The small water droplets can drip out through the air inlet 91 with the opening facing downward.

[0047] The design of the small water tank 11 provided in the present invention ensures that the machine can wash while also meeting the manual cleaning needs.

[0048] It should be understood that the specific embodiments described above are only used to explain the present invention and are not intended to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A rotary spray disc, characterized in that: The invention comprises a cylindrical cavity (31) and an arc-shaped cavity (32) arranged on the cylindrical cavity (31), wherein the lower end of the cylindrical cavity (31) is sleeved on the outer ring of the bearing; the water inlet pipe (12) is installed in conjunction with the inner ring of the bearing; the upper part of the cylindrical cavity (31) is provided with a spiral channel (33), and the spiral channel (33) is connected to the arc-shaped cavity (32); and the spiral channel (33) is provided with a first water spray hole (34) which opens obliquely upward.

2. A rotary spray disc according to claim 1, characterized in that: A plurality of second water spray holes (35) opening upward are provided on the cylindrical cavity (31).

3. The rotary spray disc according to claim 1, characterized in that: The included angle between the central axis of the first water spray hole (34) and the central axis of the cylindrical cavity (31) is 30°-45°.

4. The rotary spray disk according to claim 2, characterized in that: The included angle between the central axis of the second water spray hole (35) and the central axis of the cylindrical cavity (31) is 0-45°.

5. A rotary spray dishwasher, characterized by: It comprises the rotating spray disc (3) according to claim 1, a main water tank (1), and an upper spray arm (2) arranged above the main water tank (1).

6. The rotary spray dishwasher according to claim 5, characterized in that: The water flow is pressurized by a booster pump before the water inlet pipe (12) enters the rotating spray disc (3).

Images