CN109316151B - Spray washing device, control method thereof and dish washing machine - Google Patents

Spray washing device, control method thereof and dish washing machine Download PDF

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Publication number
CN109316151B
CN109316151B CN201811208402.5A CN201811208402A CN109316151B CN 109316151 B CN109316151 B CN 109316151B CN 201811208402 A CN201811208402 A CN 201811208402A CN 109316151 B CN109316151 B CN 109316151B
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China
Prior art keywords
spray
water
pipe
water spraying
washing
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CN201811208402.5A
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Chinese (zh)
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CN109316151A (en
Inventor
张森
薛维军
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Midea Group Co Ltd
Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
Original Assignee
Midea Group Co Ltd
Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Application filed by Midea Group Co Ltd, Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd, Guangdong Midea White Goods Technology Innovation Center Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201811208402.5A priority Critical patent/CN109316151B/en
Publication of CN109316151A publication Critical patent/CN109316151A/en
Priority to US17/285,893 priority patent/US20210345853A1/en
Priority to PCT/CN2019/092730 priority patent/WO2020078033A1/en
Priority to ES19873921T priority patent/ES2965294T3/en
Priority to PL19873921.1T priority patent/PL3868278T3/en
Priority to EP19873921.1A priority patent/EP3868278B1/en
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Publication of CN109316151B publication Critical patent/CN109316151B/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4278—Nozzles
    • A47L15/428—Rotary nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/24—Spray arms status, e.g. detection of spray arm rotation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/20—Spray nozzles or spray arms

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  • Nozzles (AREA)

Abstract

The invention discloses a spray washing device and a control method thereof, wherein the spray washing device comprises a spray pipe, and the spray pipe is provided with a water spray hole; the transmission mechanism comprises a driving gear and a plurality of driven gears meshed with the driving gear, and the driven gears are connected with the water spray pipe to drive the water spray pipe to rotate; and the driving mechanism is connected with the driving gear to drive the driving gear to rotate. The technical scheme of the invention effectively improves the cleaning efficiency and the cleaning precision.

Description

Spray washing device, control method thereof and dish washing machine
Technical Field
The invention relates to the technical field of dish washing machines, in particular to a spray washing device, a control method thereof and a dish washing machine.
Background
At present, the water spraying structure of the dish washing machine on the market usually uses a long strip-shaped spraying arm structure for rotation. Because the rotation of spray arm is by motor drive for spray arm is difficult to accurate control at the turned angle who rotates the in-process, is unfavorable for spray arm spun water to carry out accurate spray rinsing to the tableware, thereby makes the utilization ratio reduction of water.
Disclosure of Invention
The invention mainly aims to provide a spray washing device, aiming to improve the rotation precision of a spray pipe so as to improve the washing efficiency of the spray pipe.
In order to achieve the above object, the present invention provides a spray rinsing device comprising:
the water spraying pipe is provided with water spraying holes;
the transmission mechanism comprises a driving gear and a plurality of driven gears meshed with the driving gear, and the driven gears are connected with the water spray pipe to drive the water spray pipe to rotate;
and the driving mechanism is connected with the driving gear to drive the driving gear to rotate.
Optionally, the deflection angle alpha of the water spray pipe is 0-150 degrees.
Optionally, the driving gear and/or the driven gear are provided with a limit block at the periphery to limit the angle range of the driven gear and the water spray pipe.
Optionally, a micro-control switch is arranged on the periphery of the driving gear and/or the driven gear, the micro-control switch is connected with a main control circuit of the spray washing device, and the main control circuit is electrically connected with the driving mechanism.
Optionally, a pressure sensor is arranged on the periphery of the driving gear and/or the driven gear, the pressure sensor is connected with a main control circuit of the spray washing device, and the main control circuit is electrically connected with the driving mechanism.
Optionally, the number of the driven gears is two, the diameter of the driving gear is smaller than that of the driven gears, and the driving gear is located below the two driven gears.
Optionally, the driving mechanism comprises a driving motor, and a driving shaft of the driving motor is connected with a shaft hole of the driving gear; the driving motor is positioned on one side of the driving gear facing the water spray pipe.
Optionally, the sprinkler tube comprises:
the water pipe comprises a pipe body and a water outlet, wherein the pipe body is provided with a water inlet end, and the pipe wall of the pipe body is provided with a water spray hole;
and a water spraying groove is formed on the water spraying pipe corresponding to the position of the water spraying hole, the water spraying hole is communicated with the water spraying groove, and the aperture of the water spraying hole is larger than the groove width of the water spraying groove.
Optionally, the ratio of the groove width l of the water spraying groove to the aperture phi of the water spraying hole is 0.18-0.25; and/or the presence of a gas in the gas,
the ratio of the length L of the water spraying groove to the aperture phi of the water spraying hole is more than or equal to 2.5-3.5.
Optionally, the spout hole includes a water inlet section and a transition section extending from the water inlet section to the spout, the transition section cutting the spout bottom to extend to the spout notch.
Optionally, the aperture D of the top of the transition section is smaller than the aperture D of the water inlet section;
the inner wall of the transition section is in arc transition from the water inlet section to the wall of the water spraying groove.
The invention further provides a control method of the spray washing device, wherein the spray washing device comprises a spray pipe, and a plurality of spray holes are formed in the pipe wall of the spray pipe; the control method of the spray washing device comprises the following steps:
acquiring a cleaning instruction;
acquiring a cleaning mode according to the cleaning instruction;
and controlling the water spray pipe to rotate along the axial axis of the water spray pipe within a preset rotation angle range according to the cleaning mode.
Optionally, the step of controlling the sprinkler pipe to rotate within a preset rotation angle range according to the washing mode comprises:
the method comprises the following steps that in a first preset time period when a water spraying pipe starts to work and starts to time, the water spraying pipe rotates at a first rotating speed;
within a second preset time period after the first preset time period, the water spray pipe rotates at a second rotating speed;
wherein the first rotational speed is greater than the second rotational speed.
Optionally, the preset rotation angle range is equally divided into N cleaning regions according to the angle, and the step of controlling the water spray pipe to rotate within the preset rotation angle range according to the cleaning mode includes:
acquiring a cleaning area corresponding to the water spray pipe at present;
acquiring preset spray washing duration of a current position according to a current washing area;
and controlling the water spraying pipe to deflect to the next cleaning area after the preset spraying time length is cleaned in the current cleaning area.
Optionally, a cleaning region corresponding to the upward vertical direction of the water spray hole is a first cleaning region, and within a preset deflection angle range, a cleaning region corresponding to a position where an included angle between the hole depth direction and the vertical direction of the water spray hole is the largest is a second cleaning region;
the preset spraying time corresponding to the cleaning area is gradually increased from the first cleaning area to the second cleaning area.
Optionally, the rotating speed of the water spraying pipe is 10-60 r/min.
Optionally, the step of controlling the sprinkler pipe to rotate within a preset rotation angle range according to the washing mode comprises:
acquiring a preset deflection speed according to a current cleaning mode;
the water spray pipe rotates back and forth at a preset deflection speed within a preset rotation angle range.
Optionally, the spray washing device further comprises a driving gear and a driven gear, the driving gear is connected with the driving device, the driven gear is connected with the spray pipe, and a position detection device is arranged on the driving gear and/or the driven gear;
before the step of controlling the sprinkler pipe to rotate within the preset rotation angle range according to the cleaning mode, the method further comprises the following steps:
detecting the current deflection angle of the water spray pipe;
comparing the deflection angle with a preset initial angle;
when the difference between the current deflection angle and the preset initial angle is larger than zero or smaller than zero, the deflection angle of the water spray pipe is adjusted to enable the difference between the current deflection angle and the preset initial angle to be zero.
The present invention further provides a dishwasher, comprising:
the inner container or the washing tank is provided with a washing cavity;
the spray pipe of the spray washing device is arranged in the washing cavity;
wherein, include:
the water spraying pipe is provided with water spraying holes;
the transmission mechanism comprises a driving gear and a plurality of driven gears meshed with the driving gear, and the driven gears are connected with the water spray pipe to drive the water spray pipe to rotate;
and the driving mechanism is connected with the driving gear to drive the driving gear to rotate.
According to the technical scheme, the driving force of the driving mechanism is transmitted to the water spraying pipe through the driving gear and the driven gear, so that the water spraying pipe rotates along the axial axis of the water spraying pipe, water is sprayed from the water spraying holes in the water spraying pipe, and a spraying area is formed in the rotating process of the water spraying pipe; the spray pipe is driven by the gear structure, so that the rotation of the spray pipe and the transmission of power are very stable and reliable, and meanwhile, the rotation angle of the spray pipe can be controlled very accurately, so that the change of a spray area is controlled, the spray area can be controlled accurately by the spray device, the accuracy of the spray device for spraying tableware and the like is improved, the utilization rate of water is improved, and the cleaning efficiency is improved; a plurality of driven gears are simultaneously driven through a driving gear to realize that a driving mechanism simultaneously drives a plurality of spray pipes, the utilization rate of the driving mechanism is improved, meanwhile, the transmission mechanism is also simplified, the space is saved, the driving and transmission structure compactness of the spray pipes is improved, and the driving stability of the spray pipes is favorably improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a spray rinsing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another embodiment of the spray apparatus of the present invention;
FIG. 3 is a schematic structural view of an embodiment of a spray pipe of the spray apparatus of the present invention;
FIG. 4 is a schematic structural view of a portion of the tube body shown in FIG. 3;
FIG. 5 is a schematic view of the internal structure of a sprinkler tube cross-section;
FIG. 6 is an internal view of a longitudinal cross-section of a sprinkler tube;
FIG. 7 is a cross-sectional shape of a spout;
FIG. 8 is a schematic structural view of another embodiment of a spray tube of the spray apparatus of the present invention;
FIG. 9 is a schematic view of the operation of the interior of FIG. 8;
FIG. 10 is an enlarged view of a portion of FIG. 9 at A;
FIG. 11 is a schematic view of a portion of the sprinkler tube;
FIG. 12 is a partial enlarged view of FIG. 11 at B;
FIG. 13 is a schematic view of the internal structure of another embodiment of the sprinkler tube.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
100 Transmission mechanism 110 Driving gear
120 Driven gear 200 Driving mechanism
300 Water spray pipe 310 Pipe body
311 Water inlet end 312 Drive end
320 Water spraying groove 330 Water spray hole
331 Water inlet section 332 Transition section
340 Bump
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Also, the meaning of "and/or" appearing throughout is to include three versions, exemplified by "A and/or B" including either version A, or version B, or versions in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention mainly provides a spraying device which is mainly applied to a dish washing machine so as to increase the utilization rate of water and the washing efficiency of tableware of the dish washing machine. Wherein, the spray washing device comprises a spray pipe 300, the spray hole 330 and the spray groove 320 are arranged on the spray pipe 300 at the same time, and the spray hole 330 is communicated with the spray groove 320, so that the water sprayed from the spray pipe 300 is fan-shaped, when the spray pipe 300 rotates along the rotating shaft of the length direction, a washing plane is formed at the top of the spray pipe 300, thereby improving the washing efficiency; through the rotation mode that sets up multiple spray pipe 300 for the operating condition of spray pipe 300 corresponds different washing modes, with the operating mode of coping difference, so that belt cleaning device's cleaning efficiency obtains improving by a wide margin, and cleaning equipment's adaptability is improved by a wide margin simultaneously.
The specific structure of the spray device will be mainly described below.
Referring to fig. 1 to 13, in an embodiment of the present invention, the spray washing device includes:
the water spraying pipe 300, wherein the water spraying pipe 300 is provided with a water spraying hole 330;
a transmission mechanism 100, wherein the transmission mechanism 100 comprises a driving gear 110 and a plurality of driven gears 120 engaged with the driving gear 110, and the driven gears 120 are connected with the sprinkler pipe 300 to drive the sprinkler pipe 300 to rotate;
the driving mechanism 200 is connected with the driving gear 110 to drive the driving gear 110 to rotate.
Specifically, in the present embodiment, the sprinkler pipe 300 is a cylindrical pipe, which includes a water inlet end 311 and a driving end 312, that is, the water inlet and the driving of the sprinkler pipe 300 are separately disposed at two ends of the sprinkler pipe 300, so that the driving and water inlet structures do not interfere with each other. The inlet end 311 of the spout 300 has an inlet end with a closed drive end 312 such that water is only ejected from the spout 330. Of course, in some embodiments, the drive mechanism 200 and the water intake structure may be located at the same end of the spout 300 for space savings. The drive end 312 of the spout 300 is closed and water enters through the inlet 311 and exits through the spout 330. The water spraying holes 330 are formed on the wall of the water spraying pipe 300, and the water flow can be directly sprayed out from the water spraying holes 330, or a nozzle can be installed in the water spraying holes 330, and the water can be sprayed out from the nozzle.
The driven gear 120 may be directly sleeved on the driving end 312, and in some embodiments, a driven rotating shaft may be disposed at the driving end 312, and the driven gear 120 is sleeved on the driven rotating shaft. The axis of rotation of the driven gear 120 is collinear with the axial axis of the spout 300. The driving gear 110 is engaged with the driven gear 120, and the position of the driving gear relative to the driven gear 120 may be various, for example, up, down, left, right, etc., and may be disposed below the driven gear 120. The water is sprayed upward, and the driving gear 110 is disposed below to avoid affecting the washing of the dishes. The driving gear 110 and the driven gear 120 are spur gears, for example. The number of the driven gears 120 is plural, and may be two, three or more, for example, two. The driving gear 110 is disposed below the two driven gears, the driving gear 110 is simultaneously engaged with the two driven gears 120, and when the driving gear 110 operates, the rotation directions of the two driven gears 120 coincide, so that the rotation directions of the spray pipes 300 connected to the two driven gears 120 coincide. Therefore, the water spray pipes 300 driven by the same driving gear 110 can work consistently, the cleaning rhythm of the water spray pipes 300 is consistent, and the cleaning efficiency is improved.
The driving mechanism 200 may be in various forms, such as an electric motor, an impeller, an oil engine, etc., and the driving mechanism 200 has a driving shaft directly inserted into the driving gear 110 or connected to the driving gear 110 after being decelerated by a transmission structure. The driving gear 110 rotates about a driving shaft. The driving mechanism 200 is exemplified by a driving motor, and the driving gear 110 is fixedly connected to a rotating shaft of the driving motor.
In this embodiment, the driving force of the driving mechanism 200 is transmitted to the water spraying pipe 300 through the driving gear 110 and the driven gear 120, so that the water spraying pipe 300 rotates along the axial axis thereof, water is sprayed from the water spraying holes 330 on the water spraying pipe 300, and a spraying area is formed during the rotation of the water spraying pipe 300; because the spray pipe 300 is driven by the gear structure, the rotation of the spray pipe 300 and the transmission of power are very stable and reliable, and meanwhile, the rotation angle of the spray pipe 300 can be controlled very accurately, so that the change of a spraying area is controlled, the spraying area can be controlled accurately by the spraying device, the accuracy of spraying tableware and the like by the spraying device is improved, the utilization rate of water is improved, and the cleaning efficiency is improved; the driving gear 110 drives the driven gears 120 at the same time, so that one driving mechanism 200 drives the spray pipes 300 at the same time, the utilization rate of the driving mechanism 200 is improved, the transmission mechanism 100 is simplified, the space is saved, the driving and transmission structure compactness of the spray pipes 300 is improved, and the driving stability of the spray pipes 300 is improved.
It should be noted that, in order to ensure the range of the water delivery area, the deflection angle α of the water spraying pipe 300 is 0 to 150 °, such as 100 to 150 °, and is exemplified by 120 to 140 °. The rotation angle of the water spray pipe 300 is set to be 100-150 degrees or 120-140 degrees, so that the problem that the water pressure of the water spray pipe is insufficient to cause incomplete spray washing when the angle is too large is avoided, and the area covered by the water spray pipe 300 is too small to cover the whole area required by washing when the angle is too small is avoided.
It should be noted that, regarding the deflection angle of the nozzle 300, the angle is a central angle, i.e. the range of the angle that the nozzle 330 swings with the axial axis of the nozzle 300 as the center line and the distance from the nozzle 330 to the center line as the radius. Within the range of the angle of deflection at which the water jet holes 330 are oscillated, the water flow can pass through, and of course, within the maximum height of the water flow. The deflection angle is bisected by the reference plane, which is the vertical plane passing through the center line and bisecting the water jet holes 330. Taking the deflection angle as 150 degrees as an example, taking the center line as the rotating shaft, the reference plane deflects 75 degrees respectively in the left and right directions to form two inclined planes, the included angle between the two inclined planes is 150 degrees, and the area between the two inclined planes is the area sprayed by the water spraying pipe 300.
It should be noted that the water spray pipe 300 is only a name of a pipe, and it is not limited to that pipe only used for spraying water, and it is understood that the water spray pipe 300 can spray liquid such as cleaning liquid, oil, etc.
In some embodiments, in order to ensure that the water spray pipe 300 rotates in a preset angle region, thereby ensuring the accuracy of the cleaning region, a limiting structure is arranged on the driving gear 110 or the driven gear 120, and the limiting structure may be a mechanical structure, through which the rotation of the driving gear 110 and the driven gear 120 is physically limited, so as to achieve the purpose of controlling the rotation of the driven gear 120 (the water spray pipe 300) to the deflection region; the limit structure can be an electric control sensor structure, the sensor can be a pressure sensor, an optical sensor, a micro-control switch and the like, the sensor structure converts detected changes into voltage or current signals and transmits the voltage or current signals to a main control circuit of the spray washing device, and the main control circuit controls the multi-drive mechanism 200 according to received electric signals. The following is illustrated by way of a few examples:
mechanical limiting mechanism: the driving gear 110 and/or the driven gear 120 are provided with a stopper at the periphery thereof to limit the angular range over which the driven gear 120 and the spray pipe 300 are deflected. The limiting blocks are square blocks or special-shaped blocks on the periphery of the driving gear 110 or the driven gear 120, so that the limiting blocks cannot be meshed with normal teeth, and certainly, the limiting blocks cannot be crossed by the teeth in the process of tooth contact, but the limiting blocks should be crossed by the teeth to limit the continuous relative rotation of the driving gear 110 and the driven gear 120. The position of the limiting block is set according to the preset deflection angle range of the spray pipe 300, and when the teeth on the driving gear 110 abut against the limiting block on the driven gear 120 (taking the limiting block is set on the driven gear 120 as an example), the deflection angle of the spray pipe 300 at this time is the maximum deflection angle.
Limiting by a micro-control switch: the periphery of the driving gear 110 and/or the driven gear 120 is provided with a micro-control switch, the micro-control switch is connected with a main control circuit of the spray washing device, and the main control circuit is electrically connected with the driving mechanism 200. In the engagement process of the driving gear 110 and the driven gear 120, when the driving gear 110 or the driven gear 120 touches or presses the micro-switch, the micro-switch may directly disconnect the power supply of the driving mechanism 200 (at this time, the micro-switch is connected to the control circuit of the driving mechanism 200), the micro-switch may also send a disconnection signal to the main control circuit, and the main control circuit, after receiving the disconnection signal, disconnects the power supply of the driving mechanism 200 with respect to the driving mechanism 200 to prevent the driven gear 120 from continuing to rotate.
The sensor is limited, a pressure sensor is arranged on the periphery of the driving gear 110 and/or the driven gear 120, the pressure sensor is connected with a main control circuit of the spray washing device, and the main control circuit is electrically connected with the driving mechanism 200. The pressure sensor is connected to the main control circuit, when the teeth of the driving gear 110 or the driven gear 120 touch or press the pressure sensor during the engagement process of the driving gear 110 and the driven gear 120, the resistance of the pressure sensor changes, which results in the change of the current passing through the pressure sensor and the voltage loaded on the pressure sensor, and after the driving circuit monitors the change, the voltage of the driving mechanism 200 is cut off through the trigger circuit or the disconnection circuit, which prevents the spray pipe 300 from rotating continuously.
Regarding the position arrangement of the driving gear 110, the driven gear 120 and the driving mechanism 200, in some embodiments, in order to further improve the space utilization and the structural compactness, the number of the driven gears 120 is two, the diameter of the driving gear 110 is smaller than that of the driven gears 120, and the driving gear 110 is located below between the two driven gears 120. The driving mechanism 200 comprises a driving motor, and a driving shaft of the driving motor is connected with a shaft hole of the driving gear 110; the driving motor is located at a side of the driving gear 110 facing the spray pipe 300.
In this embodiment, the water supply means such as a water pump of the washing apparatus (for example, dishwasher) is provided below the tub or the washing tub, and the water spray pipe 300 is provided in the tub or the washing tub, that is, the water supply means such as a water pump is provided below the water spray pipe 300. When the driving gear 110 and the driving mechanism 200 are also disposed below the spray pipe 300, the space is fully utilized, the height of the whole cleaning apparatus is not additionally increased, and the compactness of the structure is improved. Similarly, the driving mechanism 200 is disposed on one side of the driving gear 110 facing the water spraying hole 330, so that the width of the cleaning device is additionally increased at the mounting position of the driving mechanism 200, the space is fully and reasonably utilized, and the improvement of the compactness of the structure is facilitated.
The structure of the spout 300 will be described in detail below:
a spout 300, comprising:
the water spraying device comprises a pipe body 310, wherein the pipe body 310 is provided with a water inlet end 311, and the pipe wall of the pipe body is provided with a water spraying hole 330;
a spout 320 is formed on the spout 300 at a position corresponding to the spout 330, the spout 330 is communicated with the spout 320, and the diameter of the spout 330 is larger than the width of the spout 320.
Specifically, in the present embodiment, the pipe body 310 is arranged in a column shape, and the specific structure can refer to the description of the sprinkler pipe 300 in the above embodiment, and the relationship between the shape, the position, etc. of the sprinkler pipe 300 and the sprinkler groove 320 is described herein. Wherein the water spraying holes 330 penetrate through the wall of the pipe body 310, so that the water in the pipe body 310 can flow out from the water spraying holes 330.
The cross-section of the tube 310 may have various shapes, such as a circle, an ellipse, a triangle, and other polygons, and a circular shape is taken as an example. The cross-sectional shape of the water jet holes 330 can be various, such as circular, oval, polygonal, etc., and the arrangement is circular. The cross-sectional shape of the spout 320 may be various, such as U-shaped, trapezoidal, V-shaped, rectangular, etc. Under the condition of certain water pressure and water spraying holes 330, the shape of the water spraying groove 320 influences the water spraying amount, the V-shaped water outlet amount is the minimum, the trapezoid is the middle water amount, and the rectangle is the maximum. The cross-section of the water spray groove 320 is shaped in one of a V-shape, a trapezoid shape and a rectangular shape, wherein a long bottom side of the trapezoid shape is close to the notch. That is, the end with a larger opening corresponds to the notch, and the cross section of the water spraying groove 320 is set to be various shapes, so that the water spraying pipe 300 can provide water spraying with different water amounts to adapt to different working conditions, thereby improving the adaptability of the water spraying pipe 300. The water spraying groove 320 is formed in a strip shape, and the water spraying groove 320 may extend along the length direction of the tube 310, for example, the length direction of the water spraying groove 320 is parallel to the length direction of the tube 310. The bottom of the spout 320 is connected to the spout 330, and during the operation of the spout 300, the water in the pipe body 310 passes through the spout 330, enters the spout 320, and is spread and sprayed along the length of the spout 320. In the water spraying process, the water flow firstly passes through a water spraying hole 330 with a large cross section under the action of water pressure, and then spreads in the water spraying groove 320 after being greatly narrowed (the connection part of the water spraying hole 330 and the water tank is smaller in area than the water spraying hole 330), so that the water flow forms dispersed water flow on an interface, and the generated water flow is similar to a fan shape. The projection of the fan shape on the pipe body 310 is parallel to the water jet grooves 320, or the extending direction of the water jet grooves 320, determines the deviation angle between the fan shape and the length direction of the pipe body 310, and if the water jet grooves 320 are parallel to the length direction of the pipe body 310, the chord length of the fan shape is also parallel to the pipe body 310. After the plurality of water spraying holes 330 and the water spraying grooves 320 are arranged in the length direction of the water spraying pipe 300, a water wall similar to a water jet is formed on a certain interface, so that the cleaning area of the water spraying pipe 300 is greatly increased, and thus, the cross section inside the dishwasher is fully covered, and a full cleaning effect is achieved.
In this embodiment, through the arrangement of the water spraying holes 330 and the water spraying grooves 320, under the action of water pressure, water flows into the pipe body 310 under the action of water pressure and flows in the pipe body 310, and when passing through the water spraying holes 330, the water flows into the water spraying holes 330 under the action of water pressure and flows into the water spraying grooves 320 after passing through the water spraying holes 330; in this process, the water flow passes through the large-sized water spraying holes 330 and the small-sized water spraying grooves 320, and is sprayed in the groove length direction of the water spraying grooves 320 in an extending manner, so that the water flow is sprayed out from the water spraying grooves 320 to form a fan-shaped water wall, and a planar cleaning is formed along with the rotation of the spraying pipe, thereby greatly improving the cleaning effect of the water spraying pipe 300 compared with the conventional linear cleaning area.
In order to further improve the cleaning effect of the water spraying holes 330 and the water spraying grooves 320, the ratio of the groove width l of the water spraying grooves 320 to the aperture diameter phi of the water spraying holes 330 is 0.18-0.25, and the value of l/phi is 0.2 as an example. The water flow enters the water spout 320 from the water spout 330, the water pressure is increased when the water enters the water spout 320 from the water spout 330 with a large area due to the change of the water pressure of the relationship between the aperture of the water spout 330 and the width of the water spout 320, and the proportional relationship of the two relates to the reasonable release of the water energy, which affects the distance and the angle of the water flow. When l/phi is too large, the pressure difference is too small, the distance and the force of the water jet cannot be effectively guaranteed, and the cleaning effect is not ideal; when l/phi is too small, the width of the groove hinders the injection of water flow, and both the water quantity and the water speed are affected, so that the cleaning effect is not ideal.
In order to further improve the cleaning effect of the water spraying holes 330 and the water spraying grooves 320, the ratio of the groove length L of the water spraying grooves 320 to the aperture diameter Φ of the water spraying holes 330 is greater than or equal to 2.5-3.5, for example, greater than or equal to 3. The water flow enters the water spraying groove 320 from the water spraying holes 330, the aperture of the water spraying holes 330 and the groove length of the water spraying groove 320 are related to the change of the water pressure, when the water flows into the water spraying groove 320 from the water spraying holes 330 with large area, the water pressure is increased, the water flow is diffused in the water groove along the length direction, the water pressure is reduced, and the proportional relation of the water pressure and the water pressure relates to the reasonable release of the water energy and influences the angle of the water flow. When L/Φ is too small, the slot length is not long enough for the water injected from the water injection holes 330 to enter the water injection slot 320 to be diffused, so that the coverage angle of the water injection stream is reduced (the central angle of the fan shape is reduced), which is not advantageous for the spray washing of the water spray pipe 300.
It is noted that the water flow rate, the spraying angle and the distance of the water spraying groove 320 are positively correlated with the diameter of the water spraying hole 330 within a certain range. The hole depth of the water spray holes 330 has an influence on the spray distance, and the holes with a certain depth can convert the energy of the transverse flow in the pipe into the energy of the vertical flow, thereby being beneficial to the remote spray; similarly, a certain hole depth will increase the ejected flow rate, thereby increasing the diffusion angle.
When the cross section of the water spraying groove 320 is in the shape of an inverted trapezoid, the inclined included angle between the waist and the long bottom of the inverted trapezoid of the water spraying groove 320 is beta, according to the water quantity design, when the water quantity of a single water spraying groove 320 is larger, the beta can be designed to be larger (namely, the section is converted from the inverted trapezoid to a rectangle), and when the water quantity distribution of a single nozzle is smaller, the beta is designed to be smaller (namely, the section is converted from the inverted trapezoid to the inverted triangle), in the embodiment, the beta is 15-25 degrees, and 20 degrees is taken as an example. Specifically, the included angle between the wall surface of the water spraying groove 320 and the plane of the notch is beta, and beta is 15-25 degrees.
In order to meet different working condition requirements, the water spraying grooves 320 of different shapes can be correspondingly arranged on the same water spraying pipe 300, and the following specific description is made:
the number of the water spraying holes 330 and the water spraying grooves 320 is plural and is correspondingly arranged, and the cross section of the water spraying grooves 320 is arranged in one or more of a V shape, a trapezoid shape and a rectangle shape. In this embodiment, the water spraying holes 330 correspond to the water spraying grooves 320 one by one, and in some embodiments, one water spraying groove 320 corresponds to a plurality of water spraying holes 330, that is, the water spraying groove 320 is a long groove, and a plurality of water spraying holes 330 are opened at the bottom of the water spraying groove 320. The cross-sectional shape of the spout 320 may take a variety of forms within the same spout 300, i.e., the angle between the wall of the spout 320 and the plane of the notch may take a variety of values. Under some conditions, the amount of water and the intensity of flushing required at different positions are different, and this can be achieved by changing the shape of the water jet grooves 320 or adjusting the angle β.
In some embodiments, the spray washing area needs to be strongly, moderately or weakly distinguished to wash objects to be washed with different degrees of cleanness, so as to improve the washing efficiency, the cross section of the water spraying groove 320 in the middle of the water spraying pipe 300 is rectangular or trapezoidal, and the cross sections of the water spraying grooves 320 at two ends of the water spraying pipe 300 are trapezoidal or V-shaped; at this time, the middle portion is a strong washing region, and both ends of the water spray pipe 300 are middle washing regions or weak washing regions, so that it is advantageous to efficiently wash dishes to be washed with different degrees of cleanliness at the same time.
In some embodiments, since the water pressure at the water inlet end 311 and the water pressure at the driving end 312 of the sprinkler pipe 300 are different with the water flow, the water spraying effect at the two ends is different, in order to make the water spraying effect at different positions of the sprinkler pipe 300 uniform, the cross section of the water spraying groove 320 near the water inlet end 311 of the sprinkler pipe 300 is V-shaped, the cross section of the water spraying groove 320 at the middle of the sprinkler pipe 300 is trapezoid, and the cross section of the water spraying groove 320 far from the water inlet end 311 of the sprinkler pipe 300 is rectangular. Thus, the water spout 320 located farther from the water inlet 311 can also spray a larger amount of water.
In order to fully utilize the water energy reasonably and further improve the spraying effect, the water spraying hole 330 includes a water inlet section 331 and a transition section 332 extending from the water inlet section 331 to the water spraying groove 320, and the transition section 332 cuts the bottom of the water spraying groove 320 and extends to the notch of the water spraying groove 320. Specifically, in the present embodiment, the water spraying holes 330 are arranged in a circular cross section, the transition section 332 extends to the notch to cut the bottom of the groove, and when the cross section of the water spraying groove 320 is arranged in a V-shape or an inverted trapezoid, the width of the joint of the water spraying holes 330 and the water spraying groove 320 is larger than the width of the bottom of the water spraying groove 320. Through the setting of transition section 332 for the hole depth of hole for water spout 330 moves to the notch, has increased the entry area that water got into spout 320 from hole for water spout 330, makes water be at the in-process that flows, is unlikely to by a large amount of losses, but enters into spout 320 through the position from the groove lateral wall, thereby the effectual energy that has remain rivers, has improved rivers by a wide margin and has followed the spun distance and declination in the basin, is favorable to improving the cleaning efficiency of spray pipe 300.
In some embodiments, to further increase the jetting effect, the aperture D at the top of the transition section 332 is smaller than the aperture D of the water inlet section 331. When the water flow passes through the large-diameter water inlet section 331 and the small-diameter transition section 332, the water pressure is increased while the water flow is guided and transited, which is beneficial to increasing the distance and range of the jet.
In the transition process, in order to avoid energy loss caused by large friction and collision between the water flow and the hole wall, the inner wall of the transition section 332 is in arc transition from the water inlet section 331 to the groove wall of the water spout 320. Therefore, when the water flow enters the transition section 332 from the water inlet section 331, the water flow is guided smoothly in the process of entering the water spraying groove 320 from the transition section 332, which is beneficial to retaining the water energy.
In order to further improve the water spraying effect of the water spraying grooves 320, the groove width at the intersection of the top of the transition section 332 and the water spraying grooves 320 is k, and the aperture d is greater than or equal to 2 times of k. In this embodiment, by setting the aperture d to be greater than or equal to 2 times of the groove width k, the variation of the water pressure entering the water spray groove 320 from the transition section 332 is ensured, the pressure difference is ensured, the beneficial water flow enters the water spray groove 320 more stably, reliably and efficiently, and extends and sprays along the groove length of the water spray groove 320, which is beneficial to improving the spraying distance and the spraying angle.
The water spraying groove 320 can be formed in various ways, and can be directly formed on the tube body 310, or other structures can be arranged on the tube body 310 to form the water spraying groove 320. The following are described separately:
the water spraying groove 320 is opened on the outer side wall of the pipe body 310. The spout 320 is directly formed on the outer side wall of the pipe body 310, and the spout 320 extends along the length of the pipe body 310. By the arrangement, the forming process of the water spraying groove 320 is simplified, additional parts are not needed, and the assembling process is reduced. Meanwhile, the water spraying groove 320 sinks in the pipe body 310, so that the external environmental factors hardly influence the work of the water spraying groove 320, and the work stability of the water spraying groove 320 is improved.
In other embodiments, the spout 300 further includes a protrusion 340, the protrusion 340 is disposed on an outer sidewall of the tube 310 corresponding to the spout hole 330, and the spout 320 is disposed on the protrusion 340. The bump 340 may be in various forms, such as a bar-shaped bump 340, a square bump 340, a round bump 340, etc., and the bar-shaped bump 340 is taken as an example. The spout 320 is formed on the protrusion 340, and the bottom of the spout 320 is connected to the outer sidewall of the tube 310. In some embodiments, the protrusion 340 can be integrally formed with the tube 310, so that the connection process between the protrusion 340 and the tube 310 can be greatly simplified, which is beneficial to improving the production efficiency of the sprinkler tube 300. By arranging the water spraying grooves 320 on the protrusions 340, the thickness of the pipe wall is increased under the same condition of the pipe body 310, which is beneficial to ensuring the strength of the water spraying pipe 300 under the condition of having the water spraying holes 330, and is beneficial to prolonging the service life of the water spraying pipe 300.
In some embodiments, in order to utilize the water energy more reasonably, the water energy is prevented from being wasted due to collision of water streams sprayed from adjacent water spraying grooves 320; the number of the water spraying grooves 320 is plural, and the water spraying grooves 320 extend along the length direction of the pipe body 310; the plurality of water spray grooves 320 are arranged in an S-shape along the length direction of the pipe body 310.
It should be noted that the number of the water spraying grooves 320 arranged in the S shape is not limited, and may be three, four, five, etc., that is, there may be only one S shape on the water spraying pipe 300, or a plurality of S shapes may be present at the same time. That is, the connection line of the two adjacent water spraying holes 330 is not consistent with the length direction of the pipe body 310, and the length direction of the water spraying groove 320 is also not consistent. So set up, when the declination scope that spout 320 is great, because the projection of two adjacent fan-shaped water spray regions on the body 310 is not collinear, make two adjacent spout 320 spun water can not intersect, thereby avoided two adjacent spout 320 spun water to collide and cause the hydroenergy loss. Thus, when the water spray deflection angle of each water spray groove 320 is large enough, some cleaning areas of the water spray pipe 300 will be washed twice, that is, two water walls will wash the same area during one-way rotation of the water spray pipe 300, so that the cleaning efficiency of the water spray pipe 300 is greatly improved.
To ensure the cleaning effect and avoid waterEnergy is wasted, and the height of the water sprayed from the first water spray groove 320 is h1The central angle corresponding to the sector spray-washing area is alpha1The second water spray groove 320 adjacent to the first water spray groove 320 sprays water at a height h2The central angle corresponding to the sector spray-washing area is alpha2，
The distance between the adjacent first and second watering holes 330, 330 is greater than 0 and less than or equal to:
h1tan(α1/2)+h2tan(α2/2)。
regarding the positional relationship between the adjacent nozzles, it is applicable not only to the present embodiment but also to other embodiments;
wherein alpha is1And alpha2And, h1And h2Depending on the manufacturing and assembly of the nozzle 330 and the nozzle 320, the included angle between the nozzle and the tube 310, and the distance from the water inlet 311 of the tube 310, when α is1＝α2；h1＝h2(ii) a When the distance between two adjacent water spray holes 330 is less than or equal to:
2h1tan(α1/2) or 2h2tan(α2/2)。
By setting the distance between two adjacent water spraying holes 330 in this way, it is ensured that adjacent cleaning areas intersect, so that the cleaning plane formed when the water spraying pipe 300 rotates is effectively ensured to be a continuous plane, and thus, no dead angle cleaning is realized.
The actual situation has different actual parameters with respect to the distance between the first water jet hole 330 and the second water jet hole 330, and the parameters can be adjusted according to the actual disclosure, and the following description will take some specific examples of the parameters. In some embodiments, the first and second orifices 330, 330 are directly spaced apart by 20mm to 30 mm. Similarly, the number of the water spraying holes 330 of each water spraying pipe 300 is determined according to the actual situation, and in some embodiments, the number of the water spraying holes 330 of each water spraying pipe 300 is 8-10.
In some embodiments, to ensure the cleaning effect of the sprinkler pipe 300, if the total water circulation is M, the water flow rate in the sprinkler holes 330 is V, the total number of the sprinkler holes 330 is N, and the cross-sectional area of the sprinkler holes 330 is S, then:
m V is more than or equal to N S/2. That is, M is not less than N S/(2V), after the spray device is formed, the total number N of the water discharge holes 330 and the cross-sectional area of the water discharge holes 330 are constant, and the total water quantity of the circulation can be set according to the required water speed.
Wherein V is not less than (N S/2)/M, and M/N is the water spraying amount of a single nozzle;
the flow rate is exemplified by V.gtoreq. 1/2 (m/s).
A cleaning apparatus may take many forms, such as a dishwasher, a fruit and vegetable cleaning apparatus, etc. The cleaning equipment comprises the liner or the washing tank and the spray-washing device, the specific structure of the spray-washing device refers to the above embodiments, and the cleaning equipment adopts all technical schemes of all the above embodiments, so that the cleaning equipment at least has all the beneficial effects brought by the technical schemes of the above embodiments, and the detailed description is omitted. Wherein, the inner container or the washing tank is provided with a washing cavity, and a water spraying pipe 300 of the spraying device is arranged in the washing cavity.
In order to meet the requirements, some control methods for adapting to different working conditions are disclosed below, and the following embodiments are specifically referred to.
A control method of a spray washing device comprises a spray pipe 300, wherein the pipe wall of the spray pipe 300 is provided with a plurality of spray holes 330; the water flow enters the sprinkler pipe 300 from the water inlet end 311 of the sprinkler pipe 300 and is sprayed out of the water spray holes 330, and the control method of the sprinkler device comprises the following steps:
acquiring a cleaning instruction;
the washing instruction can be acquired in various forms, for example, a user sends the washing instruction through a mobile terminal or a manual key, or the washing instruction can be automatically triggered when the washing equipment meets certain regulation in the working process. The condition can be satisfied by detecting that the washing cavity has the object to be cleaned, and the detection mode can be various, such as infrared and gravity sensors. Of course, in some embodiments, in order to improve the control accuracy, it may be detected whether the cleanliness of the object to be cleaned meets the dish cleaning standard or not before the cleaning.
Acquiring a cleaning mode according to the cleaning instruction;
the cleaning instruction may be a single start instruction or an instruction carrying mode information, and when the instruction is an instruction carrying mode information, the cleaning device searches a corresponding mapping table according to a corresponding mode, that is, the cleaning device can perform control according to parameters obtained from the mapping table. The mapping table is a preset table of relationships between modes and operational references for the spray device. When the washing instruction does not have the mode information, the current working condition can be detected through the detection device, or the current time is obtained, so that the working parameters are controlled according to the detection result, or the working parameters are controlled according to the current time information. The cleaning mode corresponds to the cleaning working condition, and can be fixed strong cleaning, weak cleaning and middle cleaning, and also can be a cleaning mode set for improving the cleaning effect.
The sprinkler pipe 300 is controlled to rotate along its axial axis within a predetermined rotation angle range according to the washing mode.
The spout 300 is rotated along its longitudinal axis, and the axial axis of the spout 300 passes through the interior of the spout 300, as exemplified by passing through the center of its cross-section. For the predetermined rotation angle range, refer to the deflection angle mentioned in the above embodiment. The predetermined rotation angle range is 0-150 degrees, and 120 degrees is taken as an example for explanation. Taking the plane passing through the circular line and the water spraying holes 330 as an example to bisect the rotation angle range, the rotation angle ranges of 60 degrees are respectively arranged on the two sides of the plane, that is, the water spraying holes 330 can rotate in the left and right 60 degrees ranges, or the orientation of the water spraying holes 330 in the working process can be any value between-60 degrees and 60 degrees.
In this embodiment, a cleaning instruction is first obtained, a cleaning mode is then obtained according to the cleaning instruction, and then the water spray pipe 300 is controlled to rotate along the axial axis thereof within a preset rotation angle range according to the cleaning mode, so that the rotation of the water spray pipe 300 is limited within the preset range, thereby avoiding the situation that the water spray pipe 300 does useless work (water sprayed from the water spray pipe 300 is not sprayed onto an object to be cleaned or is sprayed onto a designated cleaning area), and being beneficial to providing the cleaning efficiency of the water spray pipe 300; the spray pipe 300 is arranged to rotate along the axial axis of the spray pipe, so that the space required by the rotation of the spray pipe 300 is very small, the phenomenon of blockage is not easy to occur, and the working stability of the spray pipe 300 is improved; for a non-circular washing cavity, the water spray pipes 300 can be arranged according to the shape of the washing cavity, and compared with the rotary water spray of the spray arms, the self-rotation water spray of the water spray pipes 300 is beneficial to increasing the coverage area and cleaning dead corners so as to improve the cleaning effect.
The cleaning process of the object to be cleaned comprises a plurality of stages, wherein in the first stage, more dirt is needed, and high-frequency cleaning is needed at the moment to clean most of the dirt and only the dirt which is difficult to clean is left; in the second stage, continuous long-time cleaning is needed for the dirt which is difficult to clean, and the continuous long-time cleaning is more favorable for improving the cleaning effect for the dirt which is difficult to clean; specifically, the step of controlling the sprinkler pipe 300 to rotate within a preset rotation angle range according to the washing mode includes:
within a first preset time period from the beginning of the operation of the spray pipe 300, the spray pipe 300 rotates at a first rotation speed;
during a second predetermined period of time after the first predetermined period of time, the sprinkler tube 300 rotates at a second rotational speed;
wherein the first rotational speed is greater than the second rotational speed.
The rotation speed of the water spraying pipe 300 is 10 to 60r/min (revolution per minute, i.e. revolution within one minute), for example, 10 to 40 r/min. In a first preset time of just starting cleaning, the first preset time is 5-10 minutes as an example, the water spraying pipe 300 rotates at a first rotating speed which is 40r/min as an example; within a second predetermined time period, which is 6-8 minutes for example, the water spraying pipe 300 rotates at a speed of 20 r/min. Rotate through high frequency earlier with a large amount of in order to wash dirty sanitization, the rethread long time washs the dirty sanitization with difficult abluent, is favorable to the cleaning performance of jetter.
In some embodiments, in order to improve the washing effect, the preset rotation angle range is divided into N washing areas according to the angle, and the step of controlling the sprinkler pipe 300 to rotate within the preset rotation angle range according to the washing mode includes:
acquiring a current corresponding cleaning area of the water spray pipe 300;
acquiring preset spray washing duration of a current position according to a current washing area;
the sprinkler pipe 300 is controlled to be deflected to the next cleaning area after the current cleaning area is cleaned for the preset sprinkler duration.
In this embodiment, the range of the rotation angle is first divided into a plurality of cleaning regions, the range of each cleaning region is determined by the rotation angle, the range of each cleaning region may be the same or different, and may be set according to the actual situation, the rotation angle range is 120 °, and the ranges of the plurality of cleaning regions are equivalent to each other. For example, the rotation angle range of 120 ° is divided into 30 equal divisions, each equal division corresponds to one cleaning region, and the range of each cleaning region corresponds to a central angle of 4 °.
The duration of each time of the water spraying pipe 300 in each cleaning area can be the same, or can be set to be different according to actual requirements, taking the same as an example, the duration of each cleaning area is 4-6 seconds, taking 5 seconds as an example. When the duration of each washing area is different and the same, the current position of the sprinkler pipe 300, i.e. the corresponding washing area or the deflected angle, needs to be obtained first, and then the information of the angle or the information of the washing area or the accurate washing duration is obtained. Of course, the angle range and the position included in each cleaning region, and the cleaning time period corresponding thereto may be prestored in the storage device of the spray device in the form of a mapping table. After staying for a time period corresponding to the corresponding cleaning region, the spray pipe 300 continues to rotate to the next cleaning region to clean the next cleaning region.
In the above cleaning process, it can be understood that the rotation or the standstill of the sprinkler pipe 300 can be controlled according to the actual situation when cleaning a cleaning area. In some embodiments, the spout 300 may be controlled to reciprocally deflect over a small cleaning area, which is typically the case when the cleaning range of a single cleaning position of the spout 300 may be difficult to cover the entire cleaning area.
In some embodiments, in order to ensure the cleaning effect, considering that the different deflection angles of the sprinkler pipes 300 will cause the water feeding distance and the cleaning intensity thereof to change, the cleaning area corresponding to the position where the angle between the hole depth direction of the sprinkler hole 330 and the vertical direction is the first cleaning area, and within the preset deflection angle range, the cleaning area corresponding to the position where the angle between the hole depth direction of the sprinkler hole 330 and the vertical direction is the largest is the second cleaning area;
the preset spraying time corresponding to the cleaning area is gradually increased from the first cleaning area to the second cleaning area.
In the present embodiment, continuing with the above parameters of the embodiment, taking the angle range covered by the vertically upward cleaning region (the first cleaning region) as an example of-2 to 2 °, the angle range covered by the second cleaning region (the two regions with the largest deflection angle) is 56 to 60 ° or-56 to-60 °. The spray time increases in various ways, such as linearly increasing, increasing according to a preset curve, and the like, in this embodiment, each cleaning area is increased by 0.05 to 0.3 seconds, for example, by 0.1 second. If the time length of the stay in the first cleaning area is 4 seconds, the spray cleaning time length in the cleaning area adjacent to the first cleaning area is Wei 4.1 seconds, and the spray cleaning time length in the second cleaning area is 4+15 × 0.1 seconds, namely 5.5 seconds. In this embodiment, increase when the declination is great for a long time through the spray rinsing to guarantee each washing regional cleaning performance, thereby be favorable to improving spray rinsing device's cleaning performance.
In some embodiments, the step of controlling the rotation of the sprinkler pipe 300 within a predetermined rotation angle range according to the washing mode in order to improve the operational stability of the sprinkler pipe 300 includes:
acquiring a preset deflection speed according to a current cleaning mode;
the sprinkler pipe 300 is reciprocally rotated at a preset deflection speed within a preset rotation angle range.
In this embodiment, the yaw rate corresponds to the cleaning module as an operating parameter of the sprinkler tube 300. Different cleaning modes involve different specific working conditions, and different deflection speeds are also needed, which is not limited herein, taking 10-40 r/min as an example. In the range of-60 degrees, the spray pipe rotates differently, after the spray pipe deflects from 0 degree vertically upwards to the position of 60 degrees, the spray pipe rotates from the position of 60 degrees to 0 degree, then rotates to the position of-60 degrees, and the reciprocating is carried out in this way. So set up for the law of rotation of spray pipe 300 is very simple, makes the work of spray pipe 300 very stable.
In some embodiments, in order to more accurately obtain the initial position of the spray pipe 300 and to ensure the normal operation of the spray device, the spray device further includes a driving gear 110 and a driven gear 120, the driving gear 110 is connected to a driving device, the driven gear 120 is connected to the spray pipe 300, and a position detecting device is disposed on the driving gear 110 and/or the driven gear 120;
before the step of controlling the sprinkler pipe 300 to rotate within the preset rotation angle range according to the washing mode, the method further includes:
detecting the current deflection angle of the sprinkler pipe 300;
comparing the deflection angle with a preset initial angle;
when the difference between the current deflection angle and the preset initial angle is greater than zero or less than zero, the deflection angle of the water spray pipe 300 is adjusted so that the difference between the current deflection angle and the preset initial angle is zero.
In this embodiment, the initial position is 0 degree when the nozzle holes 330 of the nozzle 300 are oriented vertically upward. The current deflection angle of the sprinkler pipe 300 can be detected in many ways, and can be realized by a mechanical structure or a sensor or a micro-control switch, that is, the detection device can be a mechanical limiting mechanism, a pressure sensor, an infrared sensor, an optical sensor or a micro-control switch.
First, the mechanical detection is described, in which a stopper is provided on the circumferential side of the driving gear 110 and/or the driven gear 120, and when the teeth abut against the stopper, the relative rotation of the driving gear 110 and the driven gear 120 is stopped. The limiting block can be arranged at a position corresponding to the initial position and can also be arranged at a position with the maximum preset deflection angle range. Depending on the parameters in the above embodiments, it may be set at 0 °, 60 °, or-60 °. The stability of the mechanical detection is very reliable.
The micro-control switch is arranged on the periphery of the driving gear 110 and/or the driven gear 120, when the driving gear 110 and the driven gear 120 are meshed and extruded to the micro-control switch, the micro-control switch sends a position signal to a main control circuit of the spray washing device, and the micro-control switch can be arranged in a plurality of positions, such as the positions of 0 degree, 60 degrees or-60 degrees. A pressure sensor, a light sensor, etc., which can directly detect the current deflection angle of the sprinkler pipe 300 to directly obtain the deflection angle. The micro-control switch, the sensor and the like can obtain the current deflection angle and can quickly respond.
After obtaining the current declination angle, the current declination angle is compared with a preset initial angle, which is 0 ° as an example, and of course, in some embodiments, the initial position may be set to be a non-zero degree, such as 30 °, 15 °, -30 °, etc., according to the requirement. When the difference between the current angle and the preset initial angle is 15 degrees, the driving motor drives the water spray pipe 300 to deflect by 15 degrees.
It should be noted that the relationship between the driving motor and the deflection angle and the deflection speed of the spout 300 will be described as an example. In this embodiment, the motor is a stepping motor, the deflection speed of the sprinkler tube 300 is determined by the driving pulse frequency, and the higher the pulse frequency is, the faster the rotation speed of the sprinkler tube 300 is. The operating angle of the sprinkler pipe 300 is determined by the number of pulses, and different numbers of pulses correspond to different operating angles, i.e., different deflection angles, and the greater the number of pulses, the greater the deflection angle (in a single-pass driving process). The rotational speed and rotational position of the spout 300 can be controlled by controlling the pulse frequency and the number of pulses of the driving motor.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (14)

1. A spray device, comprising:
the water spraying pipe comprises a water inlet end and a driving end, a water spraying hole is formed in the water spraying pipe, a water spraying groove is formed in the position, corresponding to the water spraying hole, of the water spraying pipe, the water spraying hole is communicated with the water spraying groove, the water spraying groove extends along the length direction of the water spraying pipe, and the aperture of the water spraying hole is larger than the groove width of the water spraying groove;
the transmission mechanism comprises a driving gear and a plurality of driven gears meshed with the driving gear, the driven gears are sleeved at the driving end, and the rotating axes of the driven gears are collinear with the axial axis of the water spray pipe so as to drive the water spray pipe to rotate;
and the driving mechanism is connected with the driving gear to drive the driving gear to rotate.
2. The spray device of claim 1 wherein the angle of deflection α of the spray tube is 0 to 150 °.
3. The spray device of claim 1 wherein the drive gear and/or the driven gear are provided with stops at their peripheries to limit the angular extent to which the driven gear and the spray pipe are deflected.
4. The spray apparatus of claim 1 wherein the drive gear and/or the driven gear has a micro switch disposed around its periphery, the micro switch being connected to a main control circuit of the spray apparatus, the main control circuit being electrically connected to the drive mechanism.
5. The spray device of claim 1, wherein the driving gear and/or the driven gear is provided with a pressure sensor at a periphery thereof, the pressure sensor is connected with a main control circuit of the spray device, and the main control circuit is electrically connected with the driving mechanism.
6. The spray device of any one of claims 1 to 5, wherein the spray pipe comprises:
the pipe body is provided with the water inlet end, and the pipe wall of the pipe body is provided with a water spraying hole.
7. The spray cleaning apparatus according to claim 6, wherein the ratio of the slot width l of the water spray slot to the aperture diameter Φ of the water spray hole is 0.18 to 0.25; and/or the presence of a gas in the gas,
the ratio of the length L of the water spraying groove to the aperture phi of the water spraying hole is more than or equal to 2.5-3.5.
8. The control method of the spray washing device is characterized in that the spray washing device comprises a spray pipe, the spray pipe comprises a water inlet end and a driving end, a plurality of spray holes are formed in the pipe wall of the spray pipe, a spray groove is formed in the position, corresponding to the spray holes, of the spray pipe, the spray holes are communicated with the spray groove, the spray groove extends along the length direction of the spray pipe, and the aperture of each spray hole is larger than the groove width of the spray groove; the control method of the spray washing device comprises the following steps:
acquiring a cleaning instruction;
acquiring a cleaning mode according to the cleaning instruction;
and controlling the water spray pipe to rotate along the axial axis of the water spray pipe within a preset rotation angle range according to the cleaning mode.
9. The control method of a spray washing device according to claim 8, wherein the step of controlling the spray pipe to rotate within a predetermined rotation angle range according to the washing mode comprises:
the method comprises the following steps that in a first preset time period when a water spraying pipe starts to work and starts to time, the water spraying pipe rotates at a first rotating speed;
within a second preset time period after the first preset time period, the water spray pipe rotates at a second rotating speed;
wherein the first rotational speed is greater than the second rotational speed.
10. The control method of a spray rinsing device according to claim 8, wherein the preset rotation angle range is divided into N washing zones in terms of angle, and the step of controlling the spray pipe to rotate within the preset rotation angle range according to the washing mode comprises:
acquiring a cleaning area corresponding to the water spray pipe at present;
acquiring preset spray washing duration of a current position according to a current washing area;
and controlling the water spraying pipe to deflect to the next cleaning area after the preset spraying time length is cleaned in the current cleaning area.
11. The control method of a spray washing device according to claim 10, wherein the washing area corresponding to the position where the angle between the hole depth direction of the water jet hole and the vertical direction is the largest within the preset deflection angle range is the first washing area;
the preset spraying time corresponding to the cleaning area is gradually increased from the first cleaning area to the second cleaning area.
12. The control method of a spray washing device according to claim 8, wherein the step of controlling the spray pipe to rotate within a predetermined rotation angle range according to the washing mode comprises:
acquiring a preset deflection speed according to a current cleaning mode;
the water spray pipe rotates back and forth at a preset deflection speed within a preset rotation angle range.
13. The control method of a spray rinsing device according to any one of claims 8 to 12, further comprising a driving gear connected to a driving device and a driven gear connected to a driving end of a spray pipe and having a rotation axis collinear with an axial axis of the spray pipe, wherein a position detecting device is provided on the driving gear and/or the driven gear;
before the step of controlling the sprinkler pipe to rotate within the preset rotation angle range according to the cleaning mode, the method further comprises the following steps:
detecting the current deflection angle of the water spray pipe;
comparing the deflection angle with a preset initial angle;
when the difference between the current deflection angle and the preset initial angle is larger than zero or smaller than zero, the deflection angle of the water spray pipe is adjusted to enable the difference between the current deflection angle and the preset initial angle to be zero.
14. A dishwasher, comprising:
the inner container or the washing tank is provided with a washing cavity;
the spray washing device according to any one of claims 1 to 7, wherein a spray pipe of the spray washing device is installed in the washing chamber.
CN201811208402.5A 2018-10-16 2018-10-16 Spray washing device, control method thereof and dish washing machine Active CN109316151B (en)

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CN201811208402.5A CN109316151B (en) 2018-10-16 2018-10-16 Spray washing device, control method thereof and dish washing machine
US17/285,893 US20210345853A1 (en) 2018-10-16 2019-06-25 Spraying apparatus and control method therefor and dishwasher
PCT/CN2019/092730 WO2020078033A1 (en) 2018-10-16 2019-06-25 Spraying apparatus and control method therefor and dish-washing machine
ES19873921T ES2965294T3 (en) 2018-10-16 2019-06-25 Spray device, control procedure and dishwasher
PL19873921.1T PL3868278T3 (en) 2018-10-16 2019-06-25 Spraying apparatus, control method therefor, and dish-washing machine
EP19873921.1A EP3868278B1 (en) 2018-10-16 2019-06-25 Spraying apparatus, control method therefor, and dish-washing machine

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