Multi-angle efficient cleaning and self-cleaning waterway system and implementation method

Abstract

The invention relates to a multi-angle efficient cleaning and self-cleaning waterway system and an implementation method, the top and bottom of a dish washing cabin are both provided with injection pipes, the same side of the pipe body is provided with wide-angle nozzles at equal intervals, the injection angle can be increased to form a wide sector water column, and the wide sector water column can easily penetrate through gaps adjacent to dishes; the driving unit controls the injection pipe, the pipe end Hall sensing assembly monitors the rotating angle during cleaning in real time, and it is ensured that the injection pipe accurately rotates according to a preset track. In the dish washing stage, the injection pipe rotates in a controllable-angle reciprocating mode, dead-angle-free all-directional cleaning of a tableware placing area is achieved through the wide-angle nozzle, and the dead-angle problem of a traditional dish washing machine is solved; the spraying pipe is connected with the pressure regulating water pump unit through the water delivery distribution unit, the water spraying pressure can be regulated, and personalized cleaning is achieved by regulating and controlling the rotating angle, the speed, the spraying duration and the water outlet pressure in cooperation with the driving unit according to tableware oil stain and material preset programs. After cleaning is completed, the injection pipe rotates by 360 degrees to achieve self-cleaning in the cabin, manual wiping is not needed, convenience is improved, and the follow-up cleaning environment is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of dishwashers, and more specifically, to a multi-angle, high-efficiency cleaning and self-cleaning water system and its implementation method. Background Technology

[0002] With the improvement of residents' living standards and the acceleration of the pace of life, the intelligent and efficient development of kitchen appliances has become a development trend. As a key device that can significantly liberate manpower and improve kitchen cleaning efficiency, dishwashers are gradually entering thousands of households.

[0003] However, existing dishwasher products still have shortcomings and cannot meet users' needs. Specifically, the washing coverage of dishwashers is not comprehensive enough. When facing dishes placed close together, the water flow cannot penetrate the gaps, and it is easy to form cleaning dead corners in areas such as the inside of the dishes and the bottom of the dishes. Moreover, after the washing cycle is completed, food residue and grease are easily left on the inner wall of the chamber, which requires users to wipe manually, increasing the burden on users.

[0004] The above problems are worth solving. Summary of the Invention

[0005] To overcome the problems of incomplete cleaning coverage, blind spots, and tedious cleaning of existing dishwashers, this invention provides a multi-angle, high-efficiency cleaning and self-cleaning water system and its implementation method.

[0006] The technical solution of this invention is as follows:

[0007] A multi-angle high-efficiency cleaning and self-cleaning water system includes at least one dishwashing chamber. The top and bottom of the chamber are equipped with several spray pipes, and several wide-angle nozzles are evenly spaced on the same side of each spray pipe. Several drive units are located on the outer rear side of the chamber. Each drive unit controls at least two spray pipes. The driven end of each spray pipe is equipped with a Hall effect sensor to monitor the angle of rotation of the spray pipe during the dishwashing process. Under the control of the drive units, each spray pipe can rotate 360° around its axis for self-cleaning within the chamber. The water inlet of each spray pipe is connected to a pressure-regulating water pump unit via a water distribution unit, which controls the water pressure of the spray pipes.

[0008] As a preferred embodiment of the present invention, the drive unit includes a geared motor, a drive wheel, a driven wheel, and a transmission belt. The output shaft of the geared motor is connected to the drive wheel, and the driven end of the injection pipe is connected to a rotating shaft, which is connected to the driven wheel. The drive wheel and the driven wheel are connected by the belt.

[0009] As a preferred embodiment of the present invention, the Hall sensor assembly includes a sensing circuit board and a sensing magnet. Three Hall sensors are integrated on the sensing circuit board, and the sensing magnet is embedded in the driven wheel. It is used to sense the Hall sensors at different positions as the driven wheel moves, so as to determine the rotation position of the driven wheel and thus determine the rotation angle of the injection pipe.

[0010] As a preferred embodiment of the present invention, the arrangement of the three Hall sensors forms an arc, corresponding to the movement trajectory of the sensing magnet on the driven wheel during the rotation of the spray pipe while cleaning the tableware.

[0011] As a preferred embodiment of the present invention, the driven end of the spray pipe is on the side of the water inlet, and the pipe end is installed on the rear side wall of the dishwasher compartment via a rotating fixing assembly, and the rotating fixing assembly is located outside the compartment; the rotating fixing assembly includes a rotating connecting seat and a rotating shaft rotatably assembled in the rotating connecting seat, one end of the rotating shaft is connected to the spray pipe, and the other end is connected to the driven wheel of the drive unit.

[0012] Furthermore, the rotating connecting seat is provided with a vertically connected shaft receiving channel and a water inlet channel. The rotating shaft includes a docking shaft head and an output shaft rod. The docking shaft head has an interface groove, and a circumferential limiting key is provided in the interface groove. A hollow hole is provided at the bottom of the groove. One end of the water inlet of the jet pipe is inserted into the interface groove, and the notch at the pipe end is engaged with the circumferential limiting key. The output shaft rod of the rotating shaft passes through the shaft receiving channel and is connected to the driven wheel. The water inlet of the jet pipe is connected to the water inlet channel of the rotating connecting seat through the hollow hole of the interface groove.

[0013] Furthermore, the shaft accommodating channel of the rotating connecting seat is provided with a threaded interface on the side facing the injection pipe, and the threaded interface is equipped with a clamping nut for tightening the injection pipe after it is connected to the rotating shaft.

[0014] Furthermore, the output shaft of the rotating shaft is provided with several grooves on its side, and waterproof sealing rings are fitted in the grooves. The waterproof sealing rings are used to improve the sealing between the output shaft and the channel opening of the shaft receiving channel.

[0015] As a preferred embodiment of the present invention, the rotating fixing assembly further includes an assembly bracket. The assembly bracket has screw hole seats on both sides of its front side and a slot for mounting the sensing circuit board of the Hall sensor assembly on its back side, with a through hole in the middle. The rotating connecting seat has through holes on both sides corresponding to the screw hole seats. The rotating connecting seat is connected to the assembly bracket through the through holes and the screw hole seats. The assembly bracket is fixed to the outer side of the rear side wall of the dishwasher compartment.

[0016] As a preferred embodiment of the present invention, the slit direction of the wide-angle nozzle is consistent with the axial direction of the spray pipe, and the spray angle is 100° to 150°.

[0017] The present invention also provides a method for implementing the multi-angle high-efficiency cleaning and self-cleaning water system described above, comprising:

[0018] During the washing stage, after selecting the appropriate washing program based on the degree of oiliness and material of the tableware, the pressure regulating water pump unit starts and adjusts the spray pressure according to the preset program. The water flow is divided by the water distribution unit and continuously delivered to the spray pipes at the top and bottom of the washing chamber. The drive unit drives the spray pipes to rotate back and forth within a preset angle range, and the Hall sensor component monitors the rotation angle of the spray pipes in real time. Multiple wide-angle nozzles on the spray pipes spray out wide fan-shaped water jets, fully covering all tableware areas. The washing time is controlled by the preset program.

[0019] During the self-cleaning phase, the system automatically switches to self-cleaning mode after the dishwashing program ends. The pressure regulating pump unit adjusts to the appropriate water pressure output, and the drive unit drives all spray pipes to rotate continuously 360° around the pipe axis. The wide fan-shaped water jet rotates with the spray pipes at all angles, fully covering all inner wall areas of the top, bottom, and side walls of the dishwashing chamber.

[0020] According to the above-described solution, the beneficial effects of this invention are as follows:

[0021] 1. The system of this invention has spray pipes evenly distributed on the top and bottom of the washing chamber, and several wide-angle nozzles are evenly spaced on the same side of the spray pipes. The wide-angle structure can significantly increase the spray angle of a single nozzle, so that the sprayed water column forms a wide fan-shaped water column. The wide fan-shaped water column can easily penetrate the gaps between closely placed dishes. The drive unit controls the movement of the spray pipes. With the Hall sensor component at the driven end of the spray pipes, the rotation angle of the spray pipes can be monitored in real time to ensure that the spray pipes rotate stably along the preset trajectory. During the washing stage, the spray pipes can achieve reciprocating rotation at a controllable angle. Combined with the wide spray characteristics of the wide-angle nozzles, the fan-shaped water column can cover all the tableware placement areas in the chamber in a rotating sweeping manner, forming an all-round cleaning effect without dead angles. It can effectively clean the dead areas such as the inside of the dishes and the bottom of the bowls that cannot be reached by the spray pipe nozzles of traditional dishwashers due to the limited spray angle.

[0022] 2. The water inlet of the spray pipe is connected to the pressure regulating pump unit through the water distribution unit. The pressure regulating pump unit can flexibly adjust the spray pressure of the spray pipe. Combined with the control of the spray pipe by the drive unit, the system can preset different washing programs according to the washing difficulty such as the degree of oil stains and material differences of the tableware. By adjusting the core parameters such as the rotation angle, rotation speed, spray duration and nozzle water pressure of the spray pipe, personalized modes such as high-pressure long-term cleaning of heavily soiled tableware and low-pressure fast cleaning of lightly soiled tableware can be achieved.

[0023] 3. After completing the dishwashing task, the spray nozzle can rotate 360° around the pipe axis under the control of the drive unit, and is specifically used for self-cleaning inside the chamber. After the dishwashing task is completed, there is no need to disassemble or wipe manually. The spray nozzle can rotate 360° in all directions, and together with the fan-shaped water jet, it can thoroughly rinse all the inner wall areas of the chamber, including the top, bottom, and side walls. This saves users the tedious operation of manually cleaning the dishwasher chamber, improves the convenience of use, and provides a clean environment for subsequent dishwashing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a dual-compartment dishwasher;

[0025] Figure 2 A schematic diagram of the dishwasher after removing the base and outer casing;

[0026] Figure 3 Water system for dual-compartment dishwashers;

[0027] Figure 4 for Figure 3 Enlarged view of section A;

[0028] Figure 5 This is an exploded view of the driven end portion of the injection pipe.

[0029] Figure 6 An exploded view of the driven end portion of the injection tube from another perspective;

[0030] Figure 7 This is a cross-sectional view of the rotating connecting seat;

[0031] Figure 8 This is a cross-sectional view of the driven end of the injection pipe.

[0032] In the diagram,

[0033] 100. Dishwasher; 101. Movable base unit;

[0034] 1. Dishwasher compartment;

[0035] 2. Injection pipe; 21. Wide-angle nozzle;

[0036] 3. Drive unit; 31. Gear motor; 32. Drive pulley; 33. Driven pulley; 34. Transmission belt;

[0037] 4. Hall effect sensor assembly; 41. Sensor circuit board; 42. Sensor magnet;

[0038] 5. Rotary connecting seat; 51. Shaft accommodating channel; 52. Water inlet channel; 53. Clamping nut; 54. Through hole;

[0039] 6. Rotating shaft; 61. Connecting shaft head; 611. Circumferential limit key; 612. Hollow hole; 62. Output shaft; 621. Waterproof sealing ring;

[0040] 7. Assembly bracket; 71. Screw hole seat; 72. Plate groove;

[0041] 8. Pressure regulating water pump unit;

[0042] 9. Water distribution unit; 91. Diversion valve; 92. Branch delivery pipe. Detailed Implementation

[0043] To better understand the purpose, technical solution, and technical effects of this invention, the invention will be further explained and described below in conjunction with the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also stated that the embodiments described below are only for explaining this invention and are not intended to limit this invention.

[0044] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intermediate component.

[0045] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed when in use, or the orientation or positional relationship in which a person skilled in the art would normally understand it, or the orientation or positional relationship in which the product is usually placed when in use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] The terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features.

[0047] "Multiple" means two or more, unless otherwise explicitly specified.

[0048] like Figures 1 to 3As shown, a multi-angle high-efficiency cleaning and self-cleaning water system includes at least one washing chamber 1. In this embodiment, it has two washing chambers 1, upper and lower. Each washing chamber 1 has a built-in dish basket (not shown in the figure) for holding different types of tableware such as bowls, plates, chopsticks, and spoons, as well as everyday containers such as teacups and baby bottles. Several spray pipes 2 are provided at the top and bottom of the chamber. As shown in the figure, two spray pipes 2 are installed at the top of one chamber and four spray pipes 2 are installed at the bottom. The washing basket is placed between the top spray pipes 2 and the bottom spray pipes 2, allowing the top spray pipes 2 to rinse the tableware from top to bottom, and the bottom spray pipes 2 to rinse the bottom and outside of the tableware from bottom to top, forming a pincer rinsing action. Furthermore, the key feature of this invention is that several wide-angle nozzles 21 are equally spaced on the same side of the top and bottom spray pipes 2; each spray pipe 2 is controlled by a drive unit 3 at a corresponding position on the outer back of the washing chamber 1, enabling it to rotate around a pipe axis. Each drive unit 3 controls at least two jet pipes 2 to rotate. In this embodiment, the two jet pipes 2 at the top of each chamber are controlled by one drive unit 3, and the four jet pipes 2 at the bottom are controlled by another drive unit 3.

[0049] The spray angle of the wide-angle nozzle 21 can be from 100° to 150°, preferably 120°. This means that after the water flow is sprayed from the nozzle, it will spread at a wide angle of 120°, forming a wide fan-shaped water jet. The fan-shaped water jets of adjacent nozzles can overlap each other, and the wide fan-shaped water jet can easily penetrate the gaps between closely placed dishes, avoiding blind spots in rinsing. In conjunction with the rotation of the spray pipe 2, it can effectively rinse the inside of dishes, the bottom of dishes, and other hard-to-reach areas that traditional dishwasher nozzles cannot reach due to their limited spray angle. In addition, the spray pipe 2 can rotate 360° around its axis under the control of the drive unit 3 for self-cleaning inside the compartment. This allows for a thorough cleaning of all inner wall areas, including the top, bottom, and side walls of the compartment, without the need for manual wiping by the user, completely removing residual food residue and grease.

[0050] The driven end of the spray pipe 2 is equipped with a Hall sensor component 4, which is used to monitor the angle of rotation of the spray pipe 2 during the process of cleaning tableware, and feeds back the angle signal to the control module of the drive unit 3 to realize precise closed-loop control of the rotation angle of the spray pipe 2, monitor the rotation angle of the spray pipe 2 in real time, and ensure that the spray pipe 2 rotates stably along the preset trajectory.

[0051] The water inlet of the spray pipe 2 is connected to the pressure regulating water pump unit 8 through the water distribution unit 9. The pressure regulating water pump unit 8 is used to control the spray pressure of the spray pipe 2, thereby realizing different washing programs preset according to the degree of oil stains and material differences of the tableware. The high-pressure rinsing mode is used for heavily oiled tableware, and the low-pressure gentle rinsing mode is used for lightly soiled and fragile tableware, thereby improving the washing adaptability and safety.

[0052] During use, the user places the dishes to be washed into the dish baskets of the upper and lower washing chambers 1, selects the corresponding washing program (such as heavy grease program or light stain program) according to the type of dishes and the degree of grease, and closes the door of the washing chamber 1. After receiving the program command, the system starts the pressure regulating water pump unit 8, which adjusts the output water pressure according to the selected program. Under the high pressure program, the pressure regulating water pump unit 8 operates at high speed and outputs high pressure water flow; under the low pressure program, the pressure regulating water pump unit 8 operates at low speed and outputs low pressure water flow. The water flow from each washing chamber is divided by the water distribution unit 9 and delivered to different spray pipes 2 at the top and bottom of the washing chamber 1 according to the program settings. The drive unit 3 receives the control signal and drives the corresponding spray pipe 2 to start reciprocating rotation. At the same time, the Hall sensor component 4 works synchronously to collect the rotation angle signal of the spray pipe 2 in real time and feed it back to the control module to ensure that the spray pipe 2 rotates stably according to the preset angle range and rotation speed. The wide-angle nozzle 21 on the spray pipe 2 sprays out a wide fan-shaped water column. The water flow from the top spray pipe 2 washes the tableware or other containers from top to bottom, and the water flow from the bottom spray pipe 2 washes the tableware or other containers from bottom to top. Both water flow penetrates the gaps between the tableware to achieve thorough cleaning of the tableware. During the cleaning process, the system controls the spraying time according to the preset program.

[0053] Finally, the cabin performs a self-cleaning phase: After the tableware washing program is completed, the system automatically switches to the self-cleaning program. The pressure regulating water pump unit 8 adjusts to high pressure output, and the drive unit 3 receives a 360° rotation command, driving all the spray pipes 2 to rotate continuously 360° around the pipe axis. The fan-shaped water jets sprayed by the wide-angle nozzles 21 rotate with the spray pipes 2, fully covering the inner walls of the top and bottom of the cabin and the side walls on both sides, impacting and peeling off residual food residue and oil stains. The wastewater generated during rinsing is discharged through the drain outlet at the bottom of the cabin. After the self-cleaning program is completed, the system automatically shuts down the pressure regulating water pump unit 8 and the drive unit 3. The entire process requires no user intervention.

[0054] In one specific embodiment, the water distribution unit 9 includes a diversion valve 91 and several branch delivery pipes 92. The diversion valve 91 is a valve body with one inlet and three outlets. Water flows in from the inlet. The diversion valve 91 is electrically connected to the system control module. The control module drives the valve core to operate according to a preset washing program (such as single-chamber cleaning, double-chamber cleaning, etc.), which can selectively make the water flow out from one or two of the three outlets. The three outlets are respectively connected to the spray pipe groups of different areas through the corresponding branch delivery pipes 92, thereby accurately delivering the water flow to the corresponding spray pipes, realizing flexible cleaning control of single-chamber, double-chamber, or in-chamber partitioning, and adapting to different tableware loading and cleaning needs.

[0055] In this invention, the drive unit 3 includes a geared motor 31, a drive wheel 32, a driven wheel 33, and a transmission belt 34. The output shaft of the geared motor 31 is connected to the drive wheel 32, and the driven end of the spray pipe 2 is connected to a rotating shaft 6. The rotating shaft 6 is connected to the driven wheel 33, and the drive wheel 32 and the driven wheel 33 are connected by a belt. When the geared motor 31 starts, its output shaft drives the drive wheel 32 to rotate. The drive wheel 32 drives the driven wheel 33 to rotate synchronously through the friction of the transmission belt 34. Finally, the driven wheel 33 drives the rotating shaft 6 of the spray pipe 2 to rotate, thereby realizing the reciprocating rotation (cleaning stage) or 360° rotation (self-cleaning stage) of the spray pipe 2. In a specific embodiment, the drive wheel 32 and the driven wheel 33 are provided with teeth, and the corresponding transmission belt 34 is a synchronous belt with grooves on its inner surface that match the teeth. The grooves of the synchronous belt mesh with the teeth of the drive wheel 32 and the driven wheel 33 one by one to form a meshing transmission pair.

[0056] like Figure 4 As shown, in this embodiment, the structure of a single geared motor 31 simultaneously controlling four driven pulleys is as follows: the driving pulley 32 on the geared motor 31 has upper and lower teeth, which are used to mesh with the first transmission belt 34 on the left and the first transmission belt 34 on the right, respectively, thereby simultaneously transmitting rotational driving force to the two driven pulleys 33 on the left (driven pulley A and driven pulley B) and the two driven pulleys 33 on the right (driven pulley C and driven pulley D); taking the left side as an example, the first transmission belt 34 meshes with the upper teeth of the adjacent driven pulley A. The driven wheel A's lower teeth are connected to the outermost driven wheel B via the second transmission belt 34. When the geared motor 31 operates, the driving wheel 32 drives the driven wheel A to rotate via the left first transmission belt 34. The driven wheel A then drives the driven wheel B to rotate synchronously via the second transmission belt 34, achieving synchronous operation of the two driven wheels 33 (driven wheels A and B) on the left. Each driven wheel 33 is fixedly connected to the driven end rotating shaft 6 of a spray pipe 2, thereby driving the corresponding two spray pipes 2 to rotate synchronously. Similarly, the right first transmission belt 34 is connected to the upper teeth of the adjacent driven wheel C. The lower teeth of the driven wheel C are connected to the outermost driven wheel D via the second transmission belt 34. When the geared motor 31 operates, the two driven wheels 33 (driven wheels C and D) on the right operate synchronously, driving the corresponding other two spray pipes 2 to rotate synchronously; thus, one geared motor 31 synchronously drives four spray pipes 2 to rotate.

[0057] In this invention, the Hall sensor assembly 4 includes a sensing circuit board 41 and a sensing magnet 42. The sensing magnet 42 is embedded in the end face or inner side of the driven wheel 33 and rotates synchronously with the driven wheel 33. Since the driven wheel 33 is fixedly connected to the spray pipe 2, the rotation speed and angle of the sensing magnet 42 are completely consistent with those of the spray pipe 2, and its magnetic field direction changes periodically with rotation. The sensing circuit board 41 is fixedly installed on the stationary bracket on the back of the dishwasher compartment 1, corresponding to the side position of the driven wheel 33, and does not contact the driven wheel 33. The three Hall sensors on the board are evenly distributed on the same circumference with the axis of the driven wheel 33 as the center, that is, the sensing ends of the three sensors all point to the rotation trajectory of the sensing magnet 42, forming a semi-circular detection layout. When the driven wheel 33 drives the induction magnet 42 to rotate, the magnetic poles of the induction magnet 42 will sweep across the three Hall sensors in sequence, triggering the Hall sensors to output low-level signals in a cyclical order of "sensor 1 → sensor 2 → sensor 3 → sensor 1". If the rotation is counterclockwise, the order is reversed. The control module (conventional MCU) receives the timing signals from the three sensors and accurately determines the rotation direction and rotation angle of the injection pipe 2 by decoding the trigger sequence and interval of the signals, thereby determining the rotation angle of the injection pipe 2.

[0058] The trajectory of the induction magnet 42 is an arc with the axis of the driven wheel 33 as the center and the distance from the induction magnet 42 to the axis as the radius. The three Hall sensors are arranged on the same arc according to the principle of being concentric with the trajectory of the induction magnet 42 and having the same radius. This perfectly covers the reciprocating rotation angle range of the spray pipe 2 during the cleaning stage, and ensures that the distance between the induction magnet 42 and the sensing end of each induction sensor remains constant during the rotation process.

[0059] like Figures 5 to 8 As shown, in this invention, the driven end of the spray pipe 2 is on the side of the water inlet, and the pipe end is installed on the rear side wall of the dishwasher compartment 1 through a rotating fixing assembly, and the rotating fixing assembly is located outside the compartment; the rotating fixing assembly includes a rotating connecting seat 5 and a rotating shaft 6 rotatably assembled in the rotating connecting seat 5, one end of the rotating shaft 6 is connected to the spray pipe 2, and the other end is connected to the driven wheel 33 of the drive unit 3. The rotating connecting seat 5 is provided with a vertically connected shaft receiving channel 51 and a water inlet channel 52. The rotating shaft 6 includes a docking shaft head 61 and an output shaft rod 62. The docking shaft head 61 has an interface groove, and a circumferential limiting key 611 is provided in the interface groove. A hollow hole 612 is provided at the bottom of the groove. One end of the water inlet of the jet pipe 2 is inserted into the interface groove, and the notch at the pipe end is engaged with the circumferential limiting key 611. The output shaft rod 62 of the rotating shaft 6 passes through the shaft receiving channel 51 and is connected to the driven wheel 33. The water inlet of the jet pipe 2 is connected to the water inlet channel 52 of the rotating connecting seat 5 through the hollow hole 612 of the interface groove.

[0060] The water inlet channel 52 and shaft accommodating channel 51 of the rotating connecting seat 5 are fixed, ensuring a continuous water flow. The hollow hole 612 of the rotating shaft 6 is a transfer structure that moves synchronously with the rotation but is always connected to the water supply channel. Whether the rotating shaft 6 drives the jet pipe 2 to rotate clockwise or counterclockwise, or rotates continuously at 360° during the self-cleaning stage, the hollow hole 612 of the docking shaft head 61 is always in the shaft accommodating channel 51, forming a dynamic but continuous connection with the water inlet channel 52. The water flow can enter the jet pipe 2 through the hollow hole 612 without interruption. The snap-fit ​​method between the jet pipe 2 and the rotating shaft 6 (circumferential limit key 611) only transmits rotational torque and does not affect the docking of the pipe inlet and the hollow hole 612. After the pipe inlet is inserted into the interface groove, the pipe end fits tightly with the bottom of the groove, and the water flow from the hollow hole 612 can flow directly into the pipe inlet without misalignment during rotation.

[0061] With the above structure, when the rotating shaft 6 rotates 360° within the shaft accommodating channel 51, the hollow hole 612 of the docking shaft head 61 remains connected to the shaft accommodating channel 51, and the water inlet channel 52 continuously supplies water to the shaft accommodating channel 51, so that the rotation action and the water supply action do not interfere with each other. Therefore, no matter how the jet pipe 2 rotates, it has a stable water flow path: water inlet channel 52 of rotating connecting seat 5 - shaft accommodating channel 51 - hollow hole 612 of rotating shaft 6 docking shaft head 61 - water inlet of jet pipe 2 - inside of jet pipe 2 - wide-angle nozzle 21.

[0062] In a preferred embodiment, the shaft receiving channel 51 of the rotating connecting seat 5 is provided with a threaded interface on the side facing the spray pipe 2. The threaded interface is equipped with a clamping nut 53, which is used to tighten the spray pipe 2 after it is connected to the rotating shaft 6. The clamping nut 53 tightens the spray pipe 2 axially into the interface groove of the rotating shaft 6 through the thread, completely eliminating axial displacement, ensuring that the pipe inlet and the hollow hole 612 are always precisely aligned, the water flow channel is unobstructed, and the water pressure of the wide-angle nozzle 21 is stable and the spraying effect is consistent.

[0063] The output shaft 62 of the rotating shaft 6 has several grooves on its side, and waterproof sealing rings 621 are fitted into these grooves. The waterproof sealing rings 621 improve the sealing between the output shaft 62 and the opening of the shaft receiving channel 51. The waterproof sealing rings 621 form a sealing barrier, completely blocking the leakage path and ensuring that all high-pressure water flows through the perforated hole 612 into the jet pipe 2 without pressure loss. Since the rotating fixed assembly is located outside the cabin, if the opening leaks, water may intrude into the drive unit 3 (gear motor 31, driven wheel 33) or the Hall sensor assembly 4, leading to electrical short circuits and component corrosion. The waterproof sealing rings 621 effectively prevent water and moisture leakage, protecting the normal operation of external transmission and sensing components.

[0064] In an optional embodiment, the rotating fixing assembly further includes an assembly bracket 7. The assembly bracket 7 has screw hole seats 71 on both sides of its front side. The rotating connecting seat 5 has through holes 54 on both sides corresponding to the screw hole seats 71. The through holes 54 on both sides of the rotating connecting seat 5 correspond one-to-one with the screw hole seats 71. By passing bolts through the through holes 54 and screwing them into the screw hole seats 71, the rotating connecting seat 5 and the assembly bracket 7 can be detachably fixed. The assembly bracket 7 is fixed to the outer side of the rear side wall of the dishwasher compartment 1.

[0065] The back of the mounting bracket 7 is provided with a plate groove 72. The size and depth of the plate groove 72 are perfectly matched with the sensing circuit board 41 of the Hall sensing component 4. The sensing circuit board 41 can be directly embedded in the plate groove 72. The mounting bracket 7 is provided with a through hole in the middle. The diameter of the through hole is slightly larger than the diameter of the output shaft 62 of the rotating shaft 6, and it is coaxial with the shaft receiving channel 51 of the rotating connecting seat 5. The output shaft 62 of the rotating shaft 6 can pass through the through hole and connect to the driven wheel 33 on the outside of the cabin.

[0066] In this invention, the slit direction of the wide-angle nozzle 21 is consistent with the axial direction of the spray pipe 2, and the extension direction of the slit (opening) of the nozzle for water discharge is the same as the length extension direction (axial direction) of the spray pipe 2 itself. Simply put, the spray pipe 2 is elongated, and the slit of the nozzle is also opened along the elongated direction, so that the wide fan-shaped water jet will spread along the length of the spray pipe 2, which can better cover the tableware area corresponding to the entire length of the spray pipe 2.

[0067] The present invention also provides a robotic dishwasher, comprising a dishwasher 100 located at the upper part and a movable base unit 101 located at the lower part. The dishwasher 100 has two washing chambers 1, upper and lower, each washing chamber 1 being equipped with the multi-angle high-efficiency cleaning and self-cleaning water system described above. Through this system, the following can be achieved:

[0068] During the washing stage, after the user selects the corresponding washing program according to the degree of oil stains and material of the tableware, the pressure regulating water pump unit 8 starts and adjusts the water spray pressure according to the preset program. The water flow is divided by the water distribution unit 9 and continuously delivered to the spray pipes 2 at the top and bottom of the washing chamber 1. The drive unit 3 drives the spray pipes 2 to rotate back and forth within a preset angle range. The Hall sensor component 4 monitors the rotation angle of the spray pipes 2 in real time to ensure that they operate stably along the preset trajectory. The wide-angle nozzles 21 on the spray pipes 2 spray out a wide fan-shaped water column. The top spray pipe 2 sprays from top to bottom and the bottom spray pipe 2 sprays from bottom to top to form a clamping rinsing posture. The fan-shaped water column penetrates the gaps between the tableware and the tableware in a rotating sweeping manner to fully cover all tableware areas, achieving cleaning without dead angles. The washing time is controlled by the preset program.

[0069] During the self-cleaning phase, the system automatically switches to self-cleaning mode after the dishwashing program ends. The pressure regulating water pump unit 8 adjusts to the appropriate water pressure output, and the drive unit 3 drives all spray pipes 2 to rotate continuously 360° around the pipe axis. The wide-angle nozzles 21 spray a wide fan-shaped water column that rotates with the spray pipes 2 at all angles, fully covering all inner wall areas of the dishwashing chamber 1, including the top, bottom, and side walls, impacting and removing residual food residue and grease. The wastewater generated during rinsing is naturally discharged through the chamber's drain outlet. After the program is completed, the system automatically shuts off the pressure regulating water pump unit 8 and the drive unit 3, without requiring manual intervention from the user.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A multi-angle high-efficiency cleaning and self-cleaning waterway system, characterized in that, The application relates to a dish washing cabin comprising at least one dish washing cabin body (1), wherein the top and bottom of the cabin body (1) are provided with a plurality of spray pipes (2), and a plurality of wide-angle nozzles (21) are arranged on the same side of the spray pipes (2) at equal intervals. The back side of the dish washing cabin body (1) is provided with a plurality of driving units (3), the driven end of the spray pipe (2) is provided with a Hall induction assembly (4) for monitoring the angle of rotation of the spray pipe (2) during the dish washing process, and the spray pipe (2) can rotate 360 degrees around the pipe shaft under the control of the driving unit (3) for self-cleaning in the cabin. The pipe water inlet of the spray pipe (2) is connected with a pressure regulating water pump unit (8) through a water distribution unit (9), and the pressure regulating water pump unit (8) is used for controlling the water spraying pressure of the spray pipe (2).

2. The multi-angle high-efficiency cleaning and self-cleaning waterway system according to claim 1, wherein, The driving unit (3) comprises a speed reduction motor (31), a driving wheel (32), a driven wheel (33) and a transmission belt (34), the output shaft of the speed reduction motor (31) is connected with the driving wheel (32), the rotating shaft (6) at the driven end of the spray pipe (2) is connected with the driven wheel (33), and the driving wheel (32) and the driven wheel (33) are connected through the belt.

3. The multi-angle high-efficiency cleaning and self-cleaning waterway system according to claim 2, wherein, The Hall induction assembly (4) comprises an induction circuit board (41) and an induction magnet (42), three Hall sensors are integrated on the induction circuit board (41), and the induction magnet (42) is embedded in the driven wheel (33) and used for sensing the Hall sensors at different positions during the movement of the driven wheel (33) so as to judge the rotating position of the driven wheel (33) and the rotating angle of the spray pipe (2).

4. The multi-angle high-efficiency cleaning and self-cleaning waterway system according to claim 3, wherein, The arrangement positions of the three Hall sensors form an arc line, and the movement track of the induction magnet (42) on the driven wheel (33) during the dish washing rotating process of the spray pipe (2) corresponds to the arc line.

5. The multi-angle high-efficiency cleaning and self-cleaning waterway system of claim 1, wherein, The driven end of the spray pipe (2) is located at the pipe water inlet side, the pipe end is installed on the back wall of the dish washing cabin body (1) through a rotating fixing assembly, and the rotating fixing assembly is located outside the cabin body. The rotating fixing assembly comprises a rotating connecting seat (5) and a rotating shaft (6) rotatably arranged in the rotating connecting seat (5), one end of the rotating shaft (6) is connected with the spray pipe (2), and the other end of the rotating shaft (6) is connected with the driven wheel (33) of the driving unit (3).

6. The multi-angle high-efficiency cleaning and self-cleaning waterway system of claim 5, wherein, The rotating connecting seat (5) is provided with a vertical communication shaft containing channel (51) and a water inlet channel (52), the rotating shaft (6) includes a butt joint shaft head (61) and an output shaft rod (62), the butt joint shaft head (61) has an interface slot, the interface slot is provided with a circumferential limiting key (611) in the slot, and the bottom of the slot is provided with a hollow hole (612); the pipe water inlet end of the spray pipe (2) is inserted into the interface slot, and the pipe end gap is connected with the circumferential limiting key (611); the output shaft rod (62) of the rotating shaft (6) is connected with the driven wheel (33) after penetrating out of the shaft containing channel (51); the pipe water inlet of the spray pipe (2) is communicated with the water inlet channel (52) of the rotating connecting seat (5) through the hollow hole (612) of the interface slot.

7. The multi-angle high-efficiency cleaning and self-cleaning waterway system of claim 6, wherein, The shaft containing channel (51) of the rotating connecting seat (5) is provided with a threaded interface towards the side of the spray pipe (2), the threaded interface is provided with a compression nut (53), which is used to fasten the spray pipe (2) after the spray pipe (2) is connected with the rotating shaft (6).

8. The multi-angle high-efficiency cleaning and self-cleaning waterway system of claim 6, wherein, The side surface of the output shaft rod (62) of the rotating shaft (6) is provided with a plurality of circle grooves, the circle grooves are provided with waterproof sealing rings (621), and the waterproof sealing rings (621) are used to improve the sealing between the output shaft rod (62) and the channel opening of the shaft containing channel (51).

9. The multi-angle high-efficiency cleaning and self-cleaning waterway system of claim 5, wherein, The rotating fixing assembly further includes an assembly support (7), the front sides of the assembly support (7) are provided with screw hole seats (71), the back surface is provided with a board groove (72) for assembling an induction circuit board (41) of a Hall induction assembly (4), and the middle is provided with a through hole; The two sides of the rotating connecting seat (5) are provided with through holes (54) corresponding to the screw hole seats (71), the rotating connecting seat (5) is connected with the assembly support (7) through the through holes (54) and the screw hole seats (71), and the assembly support (7) is fixed to the outside of the rear side wall of the dish washing cabin body (1).

10. A method for implementing the multi-angle high-efficiency cleaning and self-cleaning waterway system according to any one of claims 1 to 9, characterized in that, It includes: The cleaning stage, according to the degree of oil stains and the material of tableware, the corresponding washing program is selected, the pressure regulating water pump unit is started and the water pressure is adjusted according to the preset program, the water flow is continuously conveyed to each spray pipe at the top and bottom of the dish washing cabin body after being distributed by the water distribution unit; The drive unit drives the spray pipe to reciprocate and rotate at a preset angle range, and the Hall induction assembly monitors the rotation angle of the spray pipe in real time; a plurality of wide-angle nozzles on the spray pipe spray wide fan water columns, which fully cover all tableware areas, and the cleaning time is controlled by the preset program; The self-cleaning stage, after the tableware cleaning program is completed, the system automatically switches to the self-cleaning mode, the pressure regulating water pump unit is adjusted to adapt to the water pressure output, and the drive unit drives all spray pipes to rotate continuously around the pipe shaft at 360°; the wide fan water column rotates with the spray pipe at full angle, fully covering all inner wall areas of the top, bottom and side wall of the dish washing cabin body.

Images