WO2020042749A1 - 喷臂及具有其的洗涤电器 - Google Patents

喷臂及具有其的洗涤电器 Download PDF

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Publication number
WO2020042749A1
WO2020042749A1 PCT/CN2019/094245 CN2019094245W WO2020042749A1 WO 2020042749 A1 WO2020042749 A1 WO 2020042749A1 CN 2019094245 W CN2019094245 W CN 2019094245W WO 2020042749 A1 WO2020042749 A1 WO 2020042749A1
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WO
WIPO (PCT)
Prior art keywords
spray arm
sleeve
main
ball
auxiliary
Prior art date
Application number
PCT/CN2019/094245
Other languages
English (en)
French (fr)
Inventor
赵利铭
费望春
熊好平
蔡思琦
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810990350.5A external-priority patent/CN110859568A/zh
Priority claimed from CN201821397611.4U external-priority patent/CN209153529U/zh
Application filed by 佛山市顺德区美的洗涤电器制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Priority to EP19853578.3A priority Critical patent/EP3845109A1/en
Priority to US17/272,213 priority patent/US11412913B2/en
Publication of WO2020042749A1 publication Critical patent/WO2020042749A1/zh

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Classifications

    • 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
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • 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
    • A47L15/4282—Arrangements to change or modify spray pattern or direction

Definitions

  • the present application relates to the technical field of household appliances, and in particular, to a spray arm and a washing appliance having the same.
  • Some dishwashers use a satellite spray arm or WaterWall (water wall) in order to improve the cleaning ability, but the satellite spray arm or WaterWall has a complicated structure and high cost, which is not conducive to popularization and application.
  • the present application proposes a spray arm.
  • the spray arm has a simple structure, and when using the spray arm to clean articles, the cleaning effect is better.
  • the present application also proposes a washing appliance having the spray arm described above.
  • the spray arm includes a main spray arm, a plurality of sub spray arms, and a ball assembly.
  • Each of the sub spray arms is connected to the main spray arm, and the sub spray arm is opposite to the main spray arm.
  • the ball assembly is rotatable, and a ball assembly is provided at a joint between each of the auxiliary spray arms and the main spray arms.
  • the number of spray arms is increased by providing a main spray arm and a plurality of auxiliary spray arms, thereby increasing the water spray amount of the spray arm, which is beneficial to enhancing the cleaning effect of the spray arm to be cleaned.
  • the auxiliary spray arm can rotate relative to the main spray arm, thereby increasing the spraying range of the main spray arm and the auxiliary spray arm, ensuring that the spray arm can clean the entire part to be cleaned.
  • the auxiliary spray arm It is connected with the main spray arm as a whole, thereby ensuring high reliability of the spray arm work.
  • the main spray arm includes a main spray arm body and a plurality of main spray arm connection sleeves, and the plurality of main spray arm connection sleeves are disposed on a same side of the main spray arm body, so The main spray arm body and a plurality of the main spray arm connection sleeves have connected main chambers therein, and each of the sub spray arms is connected to the main spray arm through one of the main spray arm connection sleeves.
  • each of the sub spray arms includes a sub spray arm body and a sub spray arm connection sleeve, and the sub spray arm connection sleeve is disposed on a side of the sub spray arm body facing the main spray arm, so that The auxiliary spray arm body and the auxiliary spray arm connecting sleeve have a connected auxiliary chamber therein, and the auxiliary cavity is also communicated with the main cavity, and the auxiliary spray arm connecting sleeve is connected to the main spray arm.
  • the ball assembly is arranged at the connection and matching place of the sleeve.
  • the ball assembly includes at least a plurality of balls, and the plurality of balls are rotatably fitted between the auxiliary spray arm connection sleeve and the main spray arm connection sleeve.
  • the ball assembly further includes: a bearing base, and the balls are fitted between the auxiliary spray arm connecting sleeve and the main spray arm connecting sleeve through the supporting base.
  • the carrier base includes: an inner sleeve, the inner sleeve is adapted to cooperate with one of the auxiliary spray arm connection sleeve and the main spray arm connection sleeve; an intermediate sleeve, the intermediate sleeve A sleeve is sleeved on the outside of the inner sleeve, a plurality of ball holes are provided on the intermediate sleeve, the balls are installed in the ball holes, and the balls are in a radial direction of the intermediate sleeve Protrude the inner peripheral surface and the outer peripheral surface of the middle sleeve; an outer sleeve, the outer sleeve is sleeved outside the middle sleeve, and the outer sleeve is suitable for connecting the sleeve with the auxiliary spray arm and The other of the main spray arm connection sleeves cooperates.
  • the carrier base includes: an inner sleeve, the inner sleeve is adapted to cooperate with one of the auxiliary spray arm connection sleeve and the main spray arm connection sleeve; an outer sleeve, the outer sleeve The sleeve is adapted to cooperate with the other of the auxiliary spray arm connection sleeve and the main spray arm connection sleeve.
  • the inner sleeve is integrated with the one of the auxiliary spray arm connecting sleeve and the main spray arm connecting sleeve, so that the inner sleeve constitutes the inner sleeve A part of one; or the outer sleeve is integrated with the other one of the auxiliary spray arm connection sleeve and the main spray arm connection sleeve, so that the outer sleeve constitutes a part of the other one .
  • the inner sleeve is integrated with the one of the auxiliary spray arm connecting sleeve and the main spray arm connecting sleeve, so that the inner sleeve constitutes the inner sleeve Part of one; and the outer sleeve is integrated with the other one of the auxiliary spray arm connection sleeve and the main spray arm connection sleeve, so that the outer sleeve constitutes a part of the other one .
  • an outer sleeve ball groove adapted to cooperate with the ball is provided on an inner peripheral surface of the outer sleeve
  • an inner sleeve adapted to cooperate with the ball is provided on an outer peripheral surface of the inner sleeve.
  • the cylindrical ball groove, the outer sleeve ball groove and the inner sleeve ball groove are all circumferential annular grooves.
  • the outer sleeve includes an outer sleeve peripheral wall and an outer sleeve top wall, the outer sleeve top wall is disposed at an end of the outer sleeve peripheral wall away from the main spray arm, and the outer sleeve
  • the top wall of the sleeve extends inward along the radial direction of the peripheral wall of the outer sleeve, and the outer sleeve ball groove is disposed on the inner peripheral surface of the outer wall of the outer sleeve.
  • the ball hole is provided on the top of the intermediate sleeve, the ball hole is a superior arc hole, and a ball access opening is formed at the top notch.
  • a weakening groove is provided between two adjacent ball holes, and a weakening groove pillar is provided in the weakening groove.
  • the auxiliary spraying arm includes a first spraying arm and a second spraying arm
  • the auxiliary chamber includes: a first chamber in the first spraying arm and the second spraying arm.
  • a second chamber in the arm, the first spray arm is provided with a first drive hole for driving the first spray arm to rotate in a first direction, and the first drive hole is in communication with the first chamber
  • the second spray arm is provided with a second driving hole for driving the second spray arm to rotate in a second direction, the second driving hole is in communication with the second chamber, and the first direction and The second direction is the same or opposite
  • the main spray arm is provided with a main driving hole for driving the main spray arm to rotate around the first direction or the second direction.
  • the length of the first spray arm body is 0.5-1 times the length of the main spray arm body
  • the length of the second spray arm body is 0.5-1 the length of the main spray arm body Times.
  • the ball is a plastic ball or a stainless steel ball.
  • the height of the ball assembly is 5mm-25mm.
  • a washing appliance according to another embodiment of the present application includes the spray arm described above.
  • Figure 1 is an exploded schematic view of a spray arm
  • FIG. 2 is a partially enlarged schematic view at A in FIG. 1;
  • FIG. 2 is a partially enlarged schematic view at A in FIG. 1;
  • Figure 3 is a front view of the spray arm
  • Figure 4 is a left side view of the spray arm
  • FIG. 6 is a partially enlarged schematic diagram of a portion B in FIG. 5.
  • the terms “installation,” “connected,” “connected,” and “fixed” should be broadly understood unless otherwise specified and limited. For example, they can be fixed connections or removable connections. , Or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of the two elements or the interaction between the two elements.
  • installation should be broadly understood unless otherwise specified and limited. For example, they can be fixed connections or removable connections. , Or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of the two elements or the interaction between the two elements.
  • the specific meanings of the above terms in this application can be understood according to specific situations.
  • the spray arm 10000 according to the embodiment of the present application will be described in detail below with reference to FIGS. 1 to 6.
  • the spray arm 10000 can be used in washing appliances.
  • the structure of the spray arm 10000 will be described below using the spray arm 10000 in a dishwasher as an example.
  • the spray arm 10000 may include a main spray arm 1000, a plurality of sub spray arms 2000, and a ball assembly 3000, each of the sub spray arms 2000 and the main spray arm 1000 is connected.
  • the sub spray arm 2000 is located above the main spray arm 1000.
  • the sub spray arm 2000 is located at the main spray.
  • the sub spray arm 2000 is located on the side of the main spray arm 1000 facing the interior cavity of the dishwasher.
  • the structure of the spray arm 10000 is described below with the spray arm 10000 installed at the bottom of the dishwasher as an example.
  • the main spray arm 1000 is the lower spray arm and the sub spray arm 2000 is the upper spray arm.
  • the main spray arm 1000 and the multiple sub spray arms 2000 are provided with water spray holes for spraying water into the dishwasher. When the water sprayed from the water spray holes falls on the tableware, the tableware can be washed.
  • the main spraying arm 1000 and multiple auxiliary spraying arms 2000 spray water together, which is beneficial to improving the washing efficiency of the dishwasher.
  • the ball assembly 3000 is arranged between the main spray arm 1000 and the sub spray arm 2000, and connects the main spray arm 1000 and the sub spray arm 2000 as a whole, ensuring that the main spray arm 1000 and the sub spray arm 2000 can work at the same time, which is conducive to improving spraying.
  • the reliability of the arm 10000 work.
  • the auxiliary spray arm 2000 is rotatable relative to the main spray arm 1000, which can increase the spraying range of the main spray arm 1000 and the auxiliary spray arm 2000, ensuring that the spray arm 10000 can clean the entire tableware, thereby ensuring the spray arm.
  • the cleaning effect of 10000 is better.
  • the ball assembly 3000 By setting the ball assembly 3000, when the auxiliary spray arm 2000 rotates relative to the main spray arm 1000, the friction form between the sub spray arm 2000 and the main spray arm 1000 is rolling friction instead of sliding friction.
  • the resistance when the spray arm 2000 rotates is very small, so the hydrodynamic loss caused by friction can be reduced, and the utilization rate of the hydrodynamic force can be improved.
  • the speed of the auxiliary spray arm 2000 is relatively fast when it rotates relative to the main spray arm 1000. Therefore, by setting the ball assembly 3000, it is beneficial to improve the smoothness of the main spray arm 1000 and the auxiliary spray arm 2000 when rotating, thereby reducing the washing of dishes. Machine noise.
  • the ball assembly 3000 is disposed between the main spray arm 1000 and the sub spray arm 2000, and skillfully connects the main spray arm 1000 and the sub spray arm 2000 as a whole, and can effectively reduce the connection between the main spray arm 1000 and the sub spray arm 2000.
  • Height which reduces the height dimension of the spray arm 10000, saves the internal space of the dishwasher, and leaves more space for the tableware, thereby increasing the dishware capacity of the dishwasher, for example, it can increase dishwashing
  • the internal loading capacity of the machine is 10mm-40mm.
  • the rotation directions of the sub spray arms 2000 may be the same or different.
  • the rotation directions of some sub spray arms 2000 and other sub spray arms 2000 are opposite.
  • the rotation directions of the main spray arm 1000 and a certain sub spray arm 2000 may be the same or opposite.
  • the rotation directions of the respective sub spray arms 2000 are the same, and the main spray arm 1000 and the sub spray arm 2000 have opposite rotation directions. Therefore, the water column sprayed from the main spray arm 1000 and the sub spray arm 2000 can be at The kneading force generated on the surface of the tableware is also conducive to improving the cleaning effect.
  • the direction and position of the water column sprayed by each auxiliary spray arm 2000 on the tableware are multi-directional, which reduces dead angles and is easier to clean. Due to the large coverage of the water flow, the cleaning time will be correspondingly reduced, which is beneficial to shortening the cleaning time.
  • the number of the auxiliary spray arms 2000 is two.
  • the rotation directions of the two auxiliary spray arms 2000 are opposite, and the main spray arm 1000 and the one of the auxiliary spray arms 2000 have the same rotation direction.
  • the spray arm 10000 in the embodiment of the present application by setting the main spray arm 1000 and a plurality of auxiliary spray arms 2000, the number of spray arms 10000 is increased, thereby increasing the water spray amount of the spray arm 10000, which is beneficial to enhancing the spray arm 10000.
  • the cleaning effect on tableware, and the auxiliary spray arm 2000 can be rotated relative to the main spray arm 1000, thereby increasing the spraying range of the main spray arm 1000 and the sub spray arm 2000, and enabling the main spray arm 1000 and the sub spray arm 2000 to be sprayed.
  • the sprayed water column can generate rubbing force on the surface of the tableware, ensuring that the spray arm 10000 can clean the entire tableware.
  • the sub spray arm 2000 and the main The spray arm 1000 is connected as a whole, thereby ensuring the high reliability of the spray arm 10000 operation, and the rolling contact between the main spray arm 1000 and the sub spray arm 2000 is conducive to reducing the number of sub spray arms 2000 and the main spray arm 1000.
  • the frictional force between them is conducive to reducing the loss of hydrodynamic force, improving the utilization rate of hydrodynamic force, ensuring that the pressure when water is ejected from the 10,000 spray holes of the spray arm is large, and is beneficial to improving the washing effect of the dishwasher.
  • the main spray arm 1000 and the auxiliary spray arm 2000 are connected by a ball assembly 3000, which can effectively reduce the height dimension of the spray arm 10000, thereby saving the internal space of the dishwasher and leaving more space for the tableware , Increase the dishwasher capacity of the dishwasher.
  • the main spray arm 1000 may include a main spray arm body 1100 and a plurality of main spray arm connection sleeves 1200.
  • the plurality of main spray arm connection sleeves 1200 are disposed on the same main spray arm body 1100.
  • a plurality of main spray arm connection sleeves 1200 are disposed above the main spray arm body 1100, and a plurality of main spray arm connection sleeves 1200 are fixedly connected to the main spray arm body 1100, and each sub spray arm 2000 is connected to the main spray arm 1000 through a main spray arm connection sleeve 1200.
  • the main spray arm connection sleeve 1200 is a hollow cylindrical structure. Therefore, the main spray arm connection sleeve 1200 is provided to ensure that the auxiliary spray arm 2000 and the main spray arm 1000 can be connected. Relative rotation occurred.
  • the main spray arm body 1100 and the plurality of main spray arm connection sleeves 1200 have connected main chambers 1001 therein.
  • the main spray arm body 1100 and the plurality of main spray arm connection sleeves 1200 may be hollow components.
  • the hollow positions of the spray arm body 1100 and the main spray arm connection sleeve 1200 together form a main chamber 1001, thereby ensuring that water from the dishwasher water source can smoothly enter the main spray arm 1000, and then water passes through the main spray arm 1000.
  • the water spray hole is sprayed onto the surface of the tableware to complete the operation of cleaning the tableware. Therefore, by setting the main chamber 1001, a certain amount of water can be guaranteed in the main spray arm 1000, thereby ensuring that the main spray arm 1000 can spray a water column to the tableware, and further The reliable operation of the main spray arm 1000 is guaranteed.
  • the main spray arm 1000 may further include a main spray arm lower connection sleeve 1300, and the main spray arm lower connection sleeve 1300 is disposed on the lower side of the main spray arm body 1100.
  • the main spray arm The top of the under-arm connection sleeve 1300 is fixedly connected to the bottom of the main spray arm body 1100.
  • the bottom of the main spray arm connection sleeve 1300 can be connected to the dishwasher liner or the spray arm seat. Water from the water source can enter the main chamber 1001 through the main spray arm connection sleeve 1300.
  • the cavity in the lower connection sleeve 1300 is a part of the main chamber 1001, that is, the lower connection sleeve 1300 of the main spray arm is also a hollow piece, which can ensure that water from the water source can smoothly enter the main cavity 1001.
  • each auxiliary spray arm 2000 may include: a sub spray arm body 2100 and a sub spray arm connection sleeve 2200, and the sub spray arm connection sleeve 2200 is disposed on the sub spray arm body 2100.
  • the side facing the main spray arm 1000, that is, the sub spray arm connection sleeve 2200 is located below the sub spray arm body 2100, and the sub spray arm connection sleeve 2200 is fixedly connected to the sub spray arm body 2100.
  • the main spray arm body 1100, the main spray arm connection sleeve 1200 and the main spray arm lower connection sleeve 1300 can be integrally formed, and the auxiliary spray arm body 2100 and the auxiliary spray arm connection sleeve 2200 can also be integrally formed, thereby simplifying
  • the assembly process saves assembly time.
  • the main spray arm body 1100, the main spray arm connection sleeve 1200, and the main spray arm lower connection sleeve 1300 may be detachably connected, and the sub spray arm body 2100 and the sub spray arm connection sleeve 2200. It can also be a detachable connection.
  • the auxiliary spray arm body 2100 and the auxiliary spray arm connection sleeve 2200 have a connected auxiliary chamber 2101 therein.
  • the auxiliary spray arm body 2100 and the auxiliary spray arm connection sleeve 2200 may both be hollow parts, and the two parts are hollow.
  • the positions together form the sub-chamber 2101.
  • the auxiliary spray arm connection sleeve 2200 is a hollow cylindrical structure, so as to ensure that the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200 can be relatively rotated.
  • the sub-chamber 2101 is also in communication with the main chamber 1001 to ensure that water in the main chamber 1001 can flow into the sub-chamber 2101.
  • the spray arm 10000 is connected to the dishwasher
  • the water from the dishwasher's water source first entered the main chamber 1001 through the connection sleeve 1300 under the main spray arm.
  • the water in the main chamber 1001 was sprayed outward through the water spray holes, and then the inner wall of the dishwasher was discharged. Or the dishes are washed.
  • the water from the water source gradually fills the main chamber 1001, and the water pressure in the main chamber 1001 becomes larger and larger.
  • the main spray The water in the arm body 1100 will enter the auxiliary spray arm body 2100 through the main spray arm connection sleeve 1200 or the auxiliary spray arm connection sleeve 2200, that is, the water in the main chamber 1001 will enter the sub cavity 2101.
  • the water in the sub-chamber 2101 also sprays outward, and then the inner wall of the dishwasher or the dishes are washed. Therefore, by connecting the sub-chamber 2101 and the main chamber 1001, the main spray arm 1000 and the The auxiliary spray arm 2000 can work normally.
  • the main spray arm 1000 and the auxiliary spray arm 2000 spray water together, which is beneficial to increase the water spray volume. Enhance the cleaning effect.
  • the connection is reliable without interfering with the relative rotation of the main spray arm 1000 and the sub spray arm 2000, thereby ensuring high reliability of the spray arm 10000.
  • the ball assembly 3000 includes at least a plurality of balls 3400, and the plurality of balls 3400 are rotatably fitted between the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200.
  • the ball assembly 3000 further includes a bearing base, and the balls 3400 are fitted between the auxiliary spray arm connecting sleeve 2200 and the main spray arm connecting sleeve 1200 through the supporting base.
  • the bearing base includes: an inner sleeve 3200, an intermediate sleeve 3300, and an outer sleeve 3100.
  • the inner sleeve 3200 is adapted to cooperate with one of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200.
  • the middle The sleeve 3300 is sleeved outside the inner sleeve 3200.
  • the middle sleeve 3300 is provided with a plurality of ball holes 3310.
  • the ball 3400 is installed in the ball hole 3310, and the ball 3400 protrudes from the middle sleeve in the radial direction of the middle sleeve 3300.
  • an outer sleeve 3100 is sleeved on the outside of the middle sleeve 3300.
  • the outer sleeve 3100 is adapted to cooperate with the other of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200.
  • the bearing base includes: an inner sleeve 3200 and an outer sleeve 3100.
  • the inner sleeve 3200 is adapted to cooperate with one of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200.
  • the outer sleeve 3100 is suitable for Cooperate with the other of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200.
  • the inner sleeve 3200 is integrated with one of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200, so that the inner sleeve 3200 forms a part of one of them; or a jacket
  • the cylinder 3100 is integrated with the other of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200, so that the outer sleeve 3100 forms a part of the other one.
  • the inner sleeve 3200 is integrated with one of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200, so that the inner sleeve 3200 forms a part of one of them; and the jacket The cylinder 3100 is integrated with the other of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200, so that the outer sleeve 3100 forms a part of the other one.
  • the inner sleeve 3200 is integrated with one of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200, and the inner sleeve 3200 and the auxiliary spray arm connection sleeve 2200 are integrated into one, that is, That is, the inner sleeve 3200 forms a part of the auxiliary spray arm connecting sleeve 2200, that is, the main spray arm connecting sleeve 1200 is set on the outer side of the auxiliary spray arm connecting sleeve 2200.
  • the ball assembly 3000 does not include the inner sleeve 3200.
  • the ball The inner side of the 3400 is in rolling contact with the auxiliary spray arm connecting sleeve 2200 directly.
  • the inner sleeve 3200 and the main spray arm connecting sleeve 1200 are integrated into one body, that is, the inner sleeve 3200 forms a part of the main spray arm connecting sleeve 1200, that is, the sub spray arm connecting sleeve 2200 is set on the main
  • the outer side of the spray arm connection sleeve 1200, the ball assembly 3000 does not include the part of the inner sleeve 3200, and the inner side of the ball 3400 directly contacts the main spray arm connection sleeve 1200 in rolling contact.
  • the outer sleeve 3100 is integrated with the other of the auxiliary spray arm connection sleeve 2200 and the main spray arm connection sleeve 1200.
  • the outer sleeve 3100 and the main spray arm connection sleeve 1200 are integrated into one, that is, The outer sleeve 3100 forms a part of the main spray arm connection sleeve 1200, that is, the main spray arm connection sleeve 1200 is set outside the auxiliary spray arm connection sleeve 2200 at this time.
  • the ball assembly 3000 does not include the outer sleeve 3100.
  • the outer side is in rolling contact with the main spray arm connecting sleeve 1200 directly.
  • the outer sleeve 3100 is integrated with the auxiliary spray arm connection sleeve 2200, that is, the outer sleeve 3100 forms a part of the auxiliary spray arm connection sleeve 2200, that is, the auxiliary spray arm connection sleeve 2200 is set on the main body at this time.
  • the outer side of the spray arm connection sleeve 1200, the ball assembly 3000 does not include the outer sleeve 3100, and the outer side of the ball 3400 is in rolling contact with the auxiliary spray arm connection sleeve 2200 directly.
  • the structure of the ball assembly 3000 will be described below with the main spray arm connecting sleeve 1200 set on the outer side of the auxiliary spray arm connecting sleeve 2200 as an example.
  • the ball assembly 3000 may include: an outer sleeve 3100, an inner sleeve 3200, an intermediate sleeve 3300, and a ball 3400, an outer sleeve 3100, and an inner sleeve
  • the 3200 and the intermediate sleeve 3300 may both be ring-shaped pieces.
  • the inner sleeve 3200 is disposed inside the outer sleeve 3100
  • the intermediate sleeve 3300 is disposed between the outer sleeve 3100 and the inner sleeve 3200, that is, from the outward direction of the ball assembly 3000.
  • an outer sleeve 3100 In the inner direction, there are an outer sleeve 3100, a middle sleeve 3300, and an inner sleeve 3200.
  • the main spray arm connection sleeve 1200 is set on the periphery of the auxiliary spray arm connection sleeve 2200.
  • the outer sleeve 3100 can be connected to the main spray arm connection sleeve.
  • the inner sleeve 3200 can be fixedly connected with the auxiliary spray arm connection sleeve 2200, the ball 3400 is provided in the middle sleeve 3300, and the ball 3400 can be in the middle sleeve 3300 relative to the outer sleeve 3100 and the inner sleeve 3200
  • the inner sleeve 3200 can be rotated relative to the outer sleeve 3100
  • the auxiliary spray arm 2000 can be rotated relative to the main spray arm 1000.
  • the ball 3400 protrudes from the inner peripheral surface and the outer peripheral surface of the intermediate sleeve 3300 in the radial direction of the intermediate sleeve 3300. That is, the diameter of the ball 3400 is larger than the wall thickness of the intermediate sleeve 3300.
  • the ball 3400 is only partially disposed in the middle.
  • the ball 3400 protrudes from the inner peripheral surface portion of the intermediate sleeve 3300 to be in rolling contact with the outer surface of the inner sleeve 3200, and the ball 3400 protrudes from the outer peripheral surface portion of the intermediate sleeve 3300 to the outer sleeve.
  • the inner surface of the barrel 3100 is in rolling contact, and because the inner sleeve 3200 is fixedly connected to the auxiliary spray arm connection sleeve 2200, and the outer sleeve 3100 is fixedly connected to the main spray arm connection sleeve 1200, therefore, the main spray arm 1000 and the auxiliary spray arm 2000
  • the indirect connection is achieved through the ball assembly 3000, and the structure in which the main spray arm 1000, the sub spray arm 2000 and the ball assembly 3000 are connected is simple and stable.
  • the auxiliary spray arm 2000 rotates relative to the main spray arm 1000, the ball 3400 rolls, thereby causing the inner sleeve 3200 and the outer sleeve 3100 to rotate relative to each other, and because the main spray arm 1000 is fixedly connected to the outer sleeve 3100, the sub spray The arm 2000 is fixedly connected to the inner sleeve 3200, thereby achieving relative rotation of the sub spray arm 2000 and the main spray arm 1000.
  • the intermediate sleeve 3300 is provided with a plurality of ball holes 3310, and the balls 3400 are rotatably installed in the ball holes 3310.
  • the ball holes 3310 provide support for the fixing of the ball 3400 and ensure The relative positions of the plurality of balls 3400 are unchanged, preventing collisions and squeezing between the plurality of balls 3400, thereby improving the working stability of the ball assembly 3000.
  • the number of the balls 3400 is the same as the number of the ball holes 3310.
  • the number of the balls 3400 is multiple, and the plurality of balls 3400 can be evenly distributed along the circumferential direction of the intermediate sleeve 3300, thereby improving the stability of the main spray arm 1000 and the auxiliary spray arm 2000 when rotating.
  • the number of the balls 3400 is an even number, so that the force of the ball assembly 3000 can be balanced and the phenomenon of stress concentration can be alleviated.
  • the diameter of the ball 3400 is 3mm-8mm, and the number of the ball 3400 is 4-12.
  • the ball assembly 3000 is provided to ensure that the friction force of the auxiliary spray arm 2000 relative to the main spray arm 1000 is small, which is beneficial to improving the smoothness of the main spray arm 1000 and the sub spray arm 2000 when rotating, and thus to reduce dishwashing. Machine noise.
  • the role of the intermediate sleeve 3300 mainly has three points: (1) By opening the ball hole 3310 in the intermediate sleeve 3300 and installing the ball 3400 in the ball hole 3310, the position of the ball 3400 can be fixed and limited to prevent the ball 3400 from accumulating. ; (2) play a role in isolating food residues, prevent small food residues from entering the ball groove, causing friction; (3) play a reinforcing role, and can isolate the secondary spray arm 2000 vibration, to prevent the spray arm 10000 from swinging seriously.
  • an outer sleeve ball groove 3130 suitable for matching with the ball 3400 is provided on an inner peripheral surface of the outer sleeve 3100, and an outer sleeve surface 3200 is provided with an outer peripheral surface suitable for contact with the ball 3400.
  • the inner sleeve ball groove 3210, the outer sleeve ball groove 3130, and the inner sleeve ball groove 3210 matched with the balls 3400 are circumferential annular grooves, thereby ensuring that the auxiliary spray arm 2000 can rotate smoothly with respect to the main spray arm 1000.
  • the ball assembly 3000 is an independent modular component, which is easy to install and remove, and also reduces the processing cost of the auxiliary spray arm 2000 or the main spray arm 1000.
  • the ball 3400 is in rolling contact with the outer sleeve ball groove 3130 and the inner sleeve ball groove 3210, and the friction force is small.
  • the diameter of the outer sleeve ball groove 3130 and the inner sleeve ball groove 3210 may be equal to the diameter of the ball 3400, or may be slightly larger than the diameter of the ball 3400, thereby ensuring the ball 3400 and the outer sleeve ball
  • the groove 3130 and the inner sleeve ball groove 3210 fit well.
  • the outside of the ball 3400 is in contact with the outer sleeve ball groove 3130, the inside of the ball 3400 is in contact with the inner sleeve ball groove 3210, thereby completing the indirect connection of the outer sleeve 3100 and the inner sleeve 3200, and the outer sleeve ball groove 3130,
  • the positions of the inner sleeve ball groove 3210 and the ball hole 3310 correspond to each other, which can prevent the trajectory of the ball 3400 from sliding with the outer sleeve ball groove 3130 and the inner sleeve ball groove 3210 when the auxiliary spray arm 2000 rotates relative to the main spray arm 1000.
  • the trajectories are different, so they are squeezed, resulting in the inability to rotate the auxiliary spray arm 2000.
  • the outer sleeve 3100 may include an outer sleeve peripheral wall 3110 and an outer sleeve top wall 3120.
  • the outer sleeve top wall 3120 is disposed at an end of the outer sleeve peripheral wall 3110 away from the main spray arm 1000, as shown in FIG.
  • the outer sleeve top wall 3120 is disposed at the upper end of the outer sleeve peripheral wall 3110, and the outer sleeve top wall 3120 extends inward along the radial direction of the outer sleeve peripheral wall 3110, that is, a half of the cross section of the outer sleeve 3100 is inverted "L" Shape, and the inner diameter of the outer sleeve top wall 3120 is slightly larger than the outer diameter of the inner sleeve 3200, so that when the outer sleeve 3100 and the inner sleeve 3200 rotate relatively, the outer sleeve 3100 and the inner sleeve 3200 have no contact, and Ensure that the main spray arm 1000 and the sub spray arm 2000 can rotate normally, and the top wall 3120 of the outer sleeve is located above the ball 3400, which can block the ball 3400, and prevent residues in the dishwasher from entering the ball assembly 3000 and blocking the ball
  • the module 3000 works normally and can prevent
  • the outer sleeve ball groove 3130 is provided on the inner peripheral surface of the outer sleeve peripheral wall 3110 to ensure that the ball 3400 can roll along the outer sleeve ball groove 3130. So as to ensure that the ball assembly 3000 works High reliability.
  • the ball hole 3310 is provided on the top of the intermediate sleeve 3300, the ball hole 3310 is an excellent arc hole, and the ball hole 3310 is formed with a ball access opening at the top notch, and the ball 3400 enters the ball hole 3310 through the ball access hole or from The ball hole 3310 comes out, thereby facilitating the installation and removal of the ball 3400 in the ball hole 3310.
  • the excellent arc hole is a hole with a center angle greater than 180 ° and less than 360 °, so that most of each ball 3400 can be located in the ball hole 3310 to prevent the ball 3400 from falling out of the ball hole 3310 after installation.
  • a weakening groove 3320 is provided between two adjacent ball holes 3310.
  • the rigidity between the two adjacent ball holes 3310 can be made small. Therefore, when the ball 3400 is installed, The ball hole 3310 is easily deformed, thereby reducing the difficulty of installing or removing the ball 3400.
  • a weakening groove pillar 3330 is provided in the weakening groove 3320.
  • the central axis of the weakening groove pillar 3330 is parallel to the central axis of the intermediate sleeve 3300, thereby facilitating the processing of the intermediate sleeve 3300.
  • the ball hole 3310 may also be disposed at the middle position of the intermediate sleeve 3300. At this time, the ball hole 3310 is a circular hole penetrating the wall thickness of the intermediate sleeve 3300.
  • the ball 3400 is a plastic ball 3400 or a stainless steel ball 3400, because the working environment of the spray arm 10000 is filled with water, and the spray arm 10000 has been in a hot and humid environment for a long time, which may cause the ball 3400 to rust and become stuck.
  • the strong anti-corrosion ability can effectively slow down or even prevent the ball 3400 from rusting.
  • the outer sleeve 3100 is installed inside the main spray arm connecting sleeve 1200, and the inner diameter of the main spray arm connecting sleeve 1200 is equal to the outer diameter of the outer sleeve 3100.
  • the main spray arm connecting sleeve 1200 and the outer sleeve The interference fit between the cylinders 3100 ensures that the outer sleeve 3100 can be firmly fixed in the main spray arm connection sleeve 1200, and the ball assembly 3000 and the main spray arm 1000 can be reliably connected.
  • the inner sleeve 3200 is nested on the auxiliary spray arm connection sleeve 2200, and the outer diameter of the auxiliary spray arm connection sleeve 2200 is equal to the inner diameter of the inner sleeve 3200.
  • the auxiliary spray arm connection sleeve 2200 and the inner sleeve The interference fit between the cylinders 3200 ensures that the inner sleeve 3200 can be firmly fixed on the auxiliary spray arm connection sleeve 2200, and thus the ball assembly 3000 and the auxiliary spray arm 2000 can be reliably connected. Therefore, the ball assembly 3000 and The connection of the main spray arm 1000 and the sub spray arm 2000 can ensure that the connection between the main spray arm 1000 and the sub spray arm 2000 is reliable, thereby ensuring high reliability of the main spray arm 1000 and the sub spray arm 2000.
  • the ball assembly 3000 of the present application may have various deformation modes, and these deformation modes fall within the protection scope of the present application.
  • Several modifications of the ball assembly 3000 according to the embodiment of the present application are summarized below with reference to FIG. 6.
  • the ball assembly 3000 may only include: a ball 3400, that is, compared with the embodiment of FIG. 6 described above, the outer sleeve 3100, the middle sleeve 3300, and the inner sleeve are reduced.
  • the sleeve 3200 uses balls 3400 to directly cooperate with the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the main spray arm connecting sleeve 1200 is provided with a main spray arm ball groove suitable for cooperating with the ball 3400 on the inner peripheral surface
  • the sub spray arm connecting sleeve 2200 is provided with a sub spray suitable for cooperating with the ball 3400 on the outer peripheral surface. Arm ball groove.
  • the ball assembly 3000 may only include: a ball 3400 and an inner sleeve 3200, that is, compared with the embodiment of FIG. 6 described above, the middle sleeve 3300 and the outer sleeve are reduced.
  • the sleeve 3100 uses the ball 3400 to directly cooperate with the inner sleeve 3200 and the main spray arm connection sleeve 1200, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the main spray arm connection sleeve 1200 is provided on its inner peripheral surface with a main spray arm ball groove suitable for cooperation with the ball 3400.
  • the ball assembly 3000 may only include: a ball 3400 and an outer sleeve 3100, that is, the middle sleeve 3300 and the inner sleeve are reduced compared to the embodiment of FIG. 6 described above.
  • the sleeve 3200 uses balls 3400 to directly cooperate with the auxiliary spray arm connection sleeve 2200 and the outer sleeve 3100, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the auxiliary spray arm connection sleeve 2200 is provided with an auxiliary spray arm ball groove suitable for cooperation with the ball 3400 on the outer peripheral surface.
  • the ball assembly 3000 may only include: a ball 3400, an inner sleeve 3200, and an outer sleeve 3100, that is, compared with the embodiment of FIG. 6 described above, the middle is reduced
  • the sleeve 3300 uses balls 3400 to directly cooperate with the inner sleeve 3200 and the outer sleeve 3100, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the outer sleeve 3100 can be in an interference fit with the main spray arm connection sleeve 1200, and the inner sleeve 3200 can be in an interference fit with the auxiliary spray arm connection sleeve 2200.
  • the ball assembly 3000 may only include: a ball 3400 and an intermediate sleeve 3300, that is, compared with the embodiment of FIG. 6 described above, the inner sleeve 3200 and the outer sleeve are reduced.
  • the sleeve 3100 uses the ball 3400 to directly cooperate with the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the main spray arm connecting sleeve 1200 is provided with a main spray arm ball groove suitable for cooperating with the ball 3400 on the inner peripheral surface
  • the sub spray arm connecting sleeve 2200 is provided with a sub spray suitable for cooperating with the ball 3400 on the outer peripheral surface. Arm ball groove.
  • the ball assembly 3000 may only include: a ball 3400, an inner sleeve 3200, and an intermediate sleeve 3300, that is, compared with the embodiment of FIG. 6 described above,
  • the sleeve 3100 uses the ball 3400 to directly cooperate with the inner sleeve 3200 and the main spray arm connection sleeve 1200, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the main spray arm connection sleeve 1200 is provided on its inner peripheral surface with a main spray arm ball groove suitable for cooperation with the ball 3400.
  • the ball assembly 3000 may only include: a ball 3400, an outer sleeve 3100, and an intermediate sleeve 3300, that is, compared with the embodiment of FIG. 6 described above, the inner diameter is reduced.
  • the sleeve 3200 uses balls 3400 to directly cooperate with the auxiliary spray arm connection sleeve 2200 and the outer sleeve 3100, and can also realize the rolling connection of the main spray arm connection sleeve 1200 and the auxiliary spray arm connection sleeve 2200.
  • the auxiliary spray arm connection sleeve 2200 is provided with an auxiliary spray arm ball groove suitable for cooperation with the ball 3400 on the outer peripheral surface.
  • the auxiliary spray arm connection sleeve 2200 can also be sleeved on the outside of the main spray arm connection sleeve 1200.
  • the inside of the ball assembly 3000 is in contact with the main spray arm connection sleeve 1200, and the outside of the ball assembly 3000 is connected to the auxiliary spray arm connection sleeve. 2200 contact, the case where the auxiliary spray arm connection sleeve 2200 is set inside the main spray arm connection sleeve 1200 is similar to the above-mentioned seven embodiments, and is not repeated here.
  • the height of the ball assembly 3000 is 5mm-25mm.
  • the ball assembly 3000 should have a certain height to ensure that its load capacity meets the requirements of this application (for example, 50N). Therefore, the height of the ball assembly 3000 is at least 5mm.
  • the spray arm 10000 will interfere with the internal components of the dishwasher and reduce the loading capacity.
  • the maximum height of the ball assembly 3000 is 25 mm, which can reduce
  • the height dimension of the main spray arm connection sleeve 1200 and the sub spray arm connection sleeve 2200 also reduces the distance between the main spray arm 1000 and the sub spray arm 2000, thereby reducing the overall height dimension of the spray arm 10000.
  • the height of the ball assembly 3000 may be 10mm, 15mm, 20mm, 22mm, or the like.
  • the auxiliary spray arm 2000 may include a first spray arm 2300 and a second spray arm 2400, and the sub-chamber 2101 may include: a first chamber 2301 in the first spray arm 2300 and a first spray arm 2400 in the second spray arm 2400.
  • a spray arm 2300 and a second spray arm 2400 are disposed above the main spray arm 1000. Specifically, the first spray arm 2300 may be located at the upper left of the main spray arm 1000, and the second spray arm 2400 may be located at the top of the main spray arm 1000.
  • first spray arm 2300 can also be located at the upper right of the main spray arm 1000, and the second spray arm 2400 can also be located at the upper left of the main spray arm 1000.
  • first spray arm 2300 is used below. It is located at the upper left of the main spray arm 1000, and the second spray arm 2400 is located at the upper right of the main spray arm 1000.
  • the structure of the first spray arm 2300 and the second spray arm 2400 is described as an example.
  • a first chamber 2301 is provided in the first spray arm 2300, and a second chamber 2401 is provided in the second spray arm 2400, so that a certain amount of water can be retained in the first spray arm 2300 and the second spray arm 2400. Furthermore, it is ensured that the first spray arm 2300 and the second spray arm 2400 can work normally.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless it is specifically and specifically defined otherwise.
  • the main spray arm 1000 may include: a main spray arm body 1100 and a main spray arm first connecting sleeve 1210, a main spray arm second connecting sleeve 1220, a main spray arm first connecting sleeve 1210, and a main spray arm first
  • the two connection sleeves 1220 are disposed on the same side of the main spray arm body 1100, that is, the first spray sleeve 1210 and the second spray sleeve 1220 are disposed above the main spray arm body 1100.
  • first spray arm connection sleeve 1210 is adapted to be connected to the first spray arm connection sleeve 2310
  • second spray arm connection sleeve 1220 is adapted to be connected to the second spray arm connection sleeve 2410, thereby ensuring the first The spray arm 2300 and the second spray arm 2400 can be connected to the main spray arm 1000.
  • the main spray arm body 1100 and the first spray sleeve 1210 of the main spray arm, and the second spray sleeve 1220 of the main spray arm have a main chamber 1001 in communication, so that It is ensured that the water in the main chamber 1001 can smoothly enter the first chamber 2301 and the second chamber 2401 through the first connection sleeve 1210 of the main spray arm and the second connection sleeve 1220 of the main spray arm, thereby ensuring the first chamber
  • the spray arm 2300 and the second spray arm 2400 can work normally.
  • the first spray arm 2300 may include a first spray arm body 2320 and a first spray arm connection sleeve 2310.
  • the first spray arm connection sleeve 2310 is disposed on the first spray arm body 2320 and faces the main spray arm 1000.
  • One side, that is, the first spray arm connection sleeve 2310 is located below the first spray arm body 2320, and the first spray arm body 2320 and the first spray arm connection sleeve 2310 have a first chamber 2301 connected to each other.
  • the first spray arm connection sleeve 2310 can be connected to the main spray arm first connection sleeve 1210 on the left side of the main spray arm 1000, thereby ensuring that the first spray arm 2300 is connected to the main spray arm 1000, and the first chamber 2301 is connected to the main spray arm 1000.
  • the chamber 1001 communicates, thereby ensuring that water in the main chamber 1001 can smoothly enter the first chamber 2301.
  • a ball assembly 3000 is provided at the joint between the first spray arm connection sleeve 2310 and the main spray arm first connection sleeve 1210, so as to ensure that when the first spray arm 2300 rotates relative to the main spray arm 1000, the first spray arm 2300 and the main spray arm
  • the rotational friction between the arms 1000 is rolling friction, which can reduce hydrodynamic loss and ensure high working stability of the first spray arm 2300.
  • the second spray arm 2400 may include a second spray arm body 2420 and a second spray arm connection sleeve 2410.
  • the second spray arm connection sleeve 2410 is disposed on the second spray arm body 2420 and faces the main spray arm 1000.
  • the two sides, that is, the second spray arm connection sleeve 2410 is located below the second spray arm body 2420, and the second spray arm body 2420 and the second spray arm connection sleeve 2410 have a second chamber 2401 connected therein.
  • the second spray arm connection sleeve 2410 can be connected to the main spray arm second connection sleeve 1220 on the right side of the main spray arm 1000, so that the second spray arm 2400 is connected to the main spray arm 1000, and the second chamber 2401 is connected to the main spray arm 1000.
  • the chamber 1001 communicates, thereby ensuring that water in the main chamber 1001 can smoothly enter the second chamber 2401.
  • a ball assembly 3000 is provided at the joint between the second spray arm connection sleeve 2410 and the main spray arm second connection sleeve 1220, so as to ensure that when the second spray arm 2400 rotates relative to the main spray arm 1000, the second spray arm 2400 and the main spray arm
  • the rotating friction between the arms 1000 is rolling friction, which can reduce hydrodynamic loss and ensure high working stability of the second spray arm 2400.
  • the main spray arm first connection sleeve 1210 and the main spray arm second connection sleeve 1220 are symmetrical about the main spray arm lower connection sleeve 1300, so as to ensure that the first spray arm 2300 and the second spray arm 2400 are about the main spray arm lower connection sleeve.
  • the design is not only beautiful, but also has no distinction between the first spray arm 2300 and the second spray arm 2400 when assembling and disassembling, which is convenient for assembly and disassembly.
  • the first spray arm 2300 is provided with a first driving hole 2321 for driving the first spray arm 2300 to rotate in a first direction, the first driving hole 2321 and the first chamber 2301.
  • the communication ensures that the water column in the first chamber 2301 can be sprayed from the first driving hole 2321.
  • the first spray arm 2300 will receive the reaction force (that is, the reverse driving force) when the water column is sprayed from the first drive hole 2321.
  • the first spray arm 2300 will rotate around the first direction under the action of the reaction force, and the first direction is opposite to the opening direction of the first driving hole 2321.
  • the first spray arm 2300 can continuously rotate, and the water column sprayed from the first driving hole 2321 will be sprayed around as the first spray arm 2300 rotates.
  • the water stream sprayed from the spray hole of the first spray arm 2300 also enters the working area of the dishwasher, and the two cooperate to clean the dishes in the dishwasher or the stains on the inner wall of the dishwasher.
  • the second spraying arm 2400 is provided with a second driving hole 2421 for driving the second spraying arm 2400 to rotate in the second direction.
  • the second driving hole 2421 communicates with the second chamber 2401 to ensure that the water column in the second chamber 2401 can be Ejected from the second driving hole 2421.
  • the second spray arm 2400 will receive the reaction force when the water column is sprayed from the second drive hole 2421.
  • the second spray arm 2400 will surround the first spray force under the action of the reaction force. Rotating in two directions, the second direction is opposite to the opening direction of the second driving hole 2421.
  • the second spray arm 2400 can continuously rotate, and when the second spray arm 2400 rotates, the water column sprayed from the second drive hole 2421 is sprinkled to the surroundings , The water sprayed from the spray hole of the second spray arm 2400 also enters the working area of the dishwasher, so that the second spray arm 2400 and the first spray arm 2300 cooperate to coordinate the dishes in the dishwasher or the inner wall of the dishwasher. Remove stains.
  • the first driving hole 2321 and the second driving hole 2421 face in opposite directions, thereby ensuring that the rotation directions of the first spray arm 2300 and the second spray arm 2400 are opposite. That is, the first direction is opposite to the second direction.
  • the first spray arm 2300 can rotate counterclockwise, and the second spray arm 2400 can rotate clockwise.
  • the first spray arm The arm 2300 can also be rotated clockwise, and the second spray arm 2400 can be rotated counterclockwise.
  • the sprayed from the first driving hole 2321 of the first spray arm 2300 and the second driving hole 2421 of the second spray arm 2400 The water column sprays in the opposite direction.
  • the sprayed water column is forced to the inner wall of the dishware or dishwasher.
  • the direction of the rear cleaning is not consistent, so that the water column sprayed from the first driving hole 2321 and the second driving hole 2421 generates a rubbing force on the inner wall of the dishware or dishwasher, thereby enhancing the cleaning effect of the spray arm 10000 and ensuring the dishware Or the inside of the dishwasher .
  • first spray arm 2300 and the second spray arm 2400 rotate in the reverse direction, so that the water sprayed from the water spray hole of the first spray arm 2300 and the water sprayed from the water spray hole of the second spray arm 2400 can be placed on the tableware. A kneading force is generated, thereby further improving the cleaning effect of the spray arm 10000.
  • the main spray arm 1000 is provided with a main driving hole 1101 for driving the main spray arm 1000 to rotate in a first direction or a second direction. That is, by changing the orientation of the main driving hole 1101, the rotation direction of the main spray arm 1000 can be changed.
  • the main spray arm 1000 is rotated in the first direction or the second direction.
  • the following description is made by taking the first spray arm 1000 as an example.
  • the main spray arm 1000 When the main spray arm 1000 rotates in the first direction, at the same end of the main spray arm 1000 and the first spray arm 2300, the main driving hole 1101 and the first driving hole 2321 have the same orientation.
  • the main spray arm 1000 When the water column inside the main spray arm 1000 is driven from the main When the hole 1101 is ejected, the main spray arm 1000 will receive the reaction force (that is, the reverse driving force) when the water column ejects from the main drive hole 1101. At this time, the main spray arm 1000 will rotate around the first direction under the reaction force. Turning, the first direction is opposite to the opening direction of the main driving hole 1101.
  • the main spray arm 1000 can continuously rotate, and the water column sprayed from the main drive hole 1101 will be sprayed around as the main spray arm 1000 rotates, and from the main spray arm
  • the water sprayed from the 1000 spray holes also enters the working area of the dishwasher, and the two cooperate to wash the dishes in the dishwasher or the stains on the inner wall of the dishwasher.
  • the auxiliary spray arm can be used. Water is supplied in 2000, and the main spray arm 1000 and the sub spray arm 2000 spray water together, which can further enhance the cleaning ability of the spray arm 10000 and ensure that the spray arm 10000 works well.
  • a first driving hole 2321 is provided at an end of the first spray arm body 2320
  • a second driving hole 2421 is provided at an end of the second spray arm body 2420
  • a main driving hole 1101 is provided at the main
  • the end of the spray arm 1000 can ensure that when the water column sprays from the first drive hole 2321, the second drive hole 2421, and the main drive hole 1101, the force arm is longer, which is conducive to increasing the first spray arm 2300, the second The rotation moment of the spray arm 2400 and the main spray arm 1000, thereby ensuring that the first spray arm 2300, the second spray arm 2400, and the main spray arm 1000 have large rotation speeds.
  • the first direction and the second direction may be the same.
  • the first driving hole 2321 and the second driving hole The direction of 2421 is the same, and the first spray arm 2300 and the second spray arm 2400 are rotated in the same direction, which can increase the water spray amount of the spray arm 10000, which is also beneficial to the cleaning effect of the spray arm 10000.
  • the driving force of the first driving hole 2321 to the first spray arm 2300 and the driving force of the second driving hole 2421 to the second spray arm 2400 can be changed, thereby changing
  • the rotation speeds of the first spray arm 2300 and the second spray arm 2400 enable the first spray arm 2300 and the second spray arm 2400 to rotate at the same speed and in the same direction or at different speeds and in the same direction.
  • the length of the first spray arm body 2320 is 0.5-1 times the length of the main spray arm body 1100
  • the length of the second spray arm body 2420 is 0.5-1 times the length of the main spray arm body 1100, that is, In other words, the lengths of the first spray arm body 2320 and the second spray arm body 2420 are both less than or equal to the length of the main spray arm body 1100.
  • the first spray arm 2300 and the second spray arm 2400 are provided at the same height as the main spray arm.
  • the maximum length that the first spray arm body 2320 and the second spray arm body 2420 can set is the same as the main spray arm The bodies 1100 are equal.
  • the first spray arm body 2320 and the second spray arm body 2420 are set shorter, thereby reducing the weight of the first spray arm 2300 and the second spray arm 2400, thereby ensuring the first spray arm
  • the 2300 and the second spray arm 2400 can rotate smoothly, and the structure of the entire spray arm 10000 is relatively stable, and it is not easy to tip over.
  • the length of the first spray arm body 2320 and the second spray arm body 2420 is shorter than the length of the main spray arm body 1100, so that the volumes in the first cavity 2301 and the second cavity 2401 are smaller than the volume of the main cavity 1001.
  • the water pressure in the main chamber 1001 is high, which can ensure that the pressure of the water column sprayed from the main spray arm 1000 is large, and the main spray arm 1000 can rotate smoothly.
  • the height of the first spray arm 2300 and the second spray arm 2400 relative to the main spray arm 1000 are not equal.
  • the first spray arm body 2320 may be located above the second spray arm body 2420.
  • a washing appliance includes the spray arm 10000 described above.
  • the washing appliance can be a dishwasher, or a washing appliance with a washing function, such as a fruit and vegetable washing machine, a medical washing machine, etc.
  • the effect is similar to the effect of setting the spray arm 10000 in the dishwasher, which is not repeated here.

Abstract

提供了一种喷臂(10000)及具有其的洗涤电器。该喷臂(10000)包括主喷臂(1000)、多个副喷臂(2000)以及滚珠组件(3000)，每个副喷臂(2000)与主喷臂(1000)相连，且副喷臂(2000)相对于主喷臂(1000)可转动，每个副喷臂(2000)与主喷臂(1000)的连接配合处均设置有滚珠组件(3000)。

Description

喷臂及具有其的洗涤电器
相关申请的交叉引用
本申请要求申请日为2018年8月28日、申请号为201810990350.5和201821397611.4、专利申请名称为“喷臂及具有其的洗涤电器”的优先权。
技术领域
本申请涉及家用电器技术领域，具体而言，涉及一种喷臂及具有其的洗涤电器。
背景技术
目前的洗涤电器喷臂大多数是向一个方向转动，从开始清洗到清洗结束，所清洗的轨迹均是一致的，因此容易产生死角，以洗碗机为例，洗碗机的碗篮和喷臂的位置设计均是配合好的，现有碗篮的设计多是按照中国内销市场的标准餐具设计，当消费者在自己家中实际使用时，如果餐具的大小、摆放位置、方向与标准的餐具大小和摆放不同，则容易导致洗碗机在工作时清洗不干净，产生用户痛点。
一些洗碗机为了提升洗净能力，采用卫星喷臂或WaterWall(水墙)，但卫星喷臂或WaterWall的结构复杂，成本高昂，不利于推广应用。
发明内容
本申请旨在至少在一定程度上解决现有技术中的上述技术问题之一。为此，本申请提出一种喷臂，该喷臂结构简单，使用该喷臂清洗物品时，清洁效果较好。
本申请还提出了一种具有上述喷臂的洗涤电器。
根据本申请实施例的喷臂包括主喷臂、多个副喷臂以及滚珠组件，每个所述副喷臂与所述主喷臂相连，且所述副喷臂相对于所述主喷臂可转动，每个所述副喷臂与所述主喷臂的连接配合处均设置有所述滚珠组件。
根据本申请实施例的喷臂，通过设置主喷臂与多个副喷臂，增加了喷臂的数量，从而增大了喷臂的喷水量，有利于增强喷臂对待清洗件的清洗效果，并且副喷臂相对于主喷臂可转动，从而增大了主喷臂与副喷臂的喷洒范围，保证了喷臂可对待清洗件的整体进行清洗，通过设置滚珠组件，将副喷臂与主喷臂连接为一体，从而保证了喷臂工作的可靠性高。
根据本申请的一些实施例，所述主喷臂包括：主喷臂本体和多个主喷臂连接套，多个所述主喷臂连接套设置在所述主喷臂本体的同一侧，所述主喷臂本体和多个所述主喷臂连 接套内具有连通的主腔室，每个所述副喷臂通过一个所述主喷臂连接套实现与所述主喷臂相连。
进一步地，每个所述副喷臂包括：副喷臂本体和副喷臂连接套，所述副喷臂连接套设置在所述副喷臂本体的朝向所述主喷臂的一侧，所述副喷臂本体和所述副喷臂连接套内具有连通的副腔室，并且所述副腔室还与所述主腔室连通，所述副喷臂连接套与所述主喷臂连接套的连接配合处设置有所述滚珠组件。
根据本申请的一些实施例，所述滚珠组件至少包括多个滚珠，多个所述滚珠可滚动地配合在所述副喷臂连接套与所述主喷臂连接套之间。
进一步地，所述滚珠组件还包括：承载基体，所述滚珠通过所述承载基体配合在所述副喷臂连接套与所述主喷臂连接套之间。
可选地，所述承载基体包括：内套筒，所述内套筒适于与所述副喷臂连接套和所述主喷臂连接套中的其中一个配合；中间套筒，所述中间套筒套设在所述内套筒的外部，所述中间套筒上设置有多个滚珠孔，所述滚珠安装在所述滚珠孔里，且所述滚珠在所述中间套筒的径向上突出所述中间套筒的内周面和外周面；外套筒，所述外套筒套设在所述中间套筒的外部，所述外套筒适于与所述副喷臂连接套和所述主喷臂连接套中的另外一个配合。
可选地，所述承载基体包括：内套筒，所述内套筒适于与所述副喷臂连接套和所述主喷臂连接套中的其中一个配合；外套筒，所述外套筒适于与所述副喷臂连接套和所述主喷臂连接套中的另外一个配合。
根据本申请的一些实施例，所述内套筒与所述副喷臂连接套和所述主喷臂连接套中的所述其中一个融合为一体，从而使得所述内套筒构成所述其中一个的一部分；或所述外套筒与所述副喷臂连接套和所述主喷臂连接套中的所述另外一个融合为一体，从而使得所述外套筒构成所述另外一个的一部分。
根据本申请的一些实施例，所述内套筒与所述副喷臂连接套和所述主喷臂连接套中的所述其中一个融合为一体，从而使得所述内套筒构成所述其中一个的一部分；并且所述外套筒与所述副喷臂连接套和所述主喷臂连接套中的所述另外一个融合为一体，从而使得所述外套筒构成所述另外一个的一部分。
进一步地，所述外套筒的内周面上设置有适于与所述滚珠配合的外套筒滚珠槽，所述内套筒的外周面上设置有适于与所述滚珠配合的内套筒滚珠槽，所述外套筒滚珠槽、所述内套筒滚珠槽均为周向环形槽。
具体地，所述外套筒包括：外套筒周壁和外套筒顶壁，所述外套筒顶壁设置在所述外套筒周壁的远离所述主喷臂的一端，且所述外套筒顶壁沿所述外套筒周壁的径向向内延伸，所述外套筒滚珠槽设置在所述外套筒周壁的内周面上。
具体地，所述滚珠孔设置在所述中间套筒的顶部，所述滚珠孔为优弧孔且顶部缺口处形成滚珠取放口。
进一步地，相邻的两个所述滚珠孔之间设置有弱化槽，且所述弱化槽内设置有弱化槽立柱。
根据本申请的一些实施例，所述副喷臂包括：第一喷臂和第二喷臂，所述副腔室包括：所述第一喷臂内的第一腔室以及所述第二喷臂内的第二腔室，所述第一喷臂上设置有用于驱动所述第一喷臂绕第一方向转动的第一驱动孔，所述第一驱动孔与所述第一腔室连通，所述第二喷臂上设置有用于驱动所述第二喷臂绕第二方向转动的第二驱动孔，所述第二驱动孔与所述第二腔室连通，所述第一方向与所述第二方向相同或相反，所述主喷臂上设置有用于驱动所述主喷臂绕所述第一方向或所述第二方向转动的主驱动孔。
可选地，所述第一喷臂本体的长度是所述主喷臂本体的长度的0.5-1倍，所述第二喷臂本体的长度是所述主喷臂本体的长度的0.5-1倍。
具体地，所述滚珠为塑料滚珠或不锈钢滚珠。
根据本申请的一些实施例，所述滚珠组件的高度为5mm-25mm。
根据本申请另一方面实施例的洗涤电器，包括上述的喷臂。
附图说明
图1是喷臂的分解示意图；
图2是图1的A处局部放大示意图；
图3是喷臂的主视图；
图4是喷臂的左视图；
图5是喷臂的截面主视图；
图6是图5的B处局部放大示意图。
附图标记：
喷臂10000、主喷臂1000、主腔室1001、主喷臂本体1100、主驱动孔1101、主喷臂连接套1200、主喷臂第一连接套1210、主喷臂第二连接套1220、主喷臂下连接套1300、副喷臂2000、副喷臂本体2100、副腔室2101、副喷臂连接套2200、第一喷臂2300、第一腔室2301、第一喷臂连接套2310、第一喷臂本体2320、第一驱动孔2321、第二喷臂2400、第二腔室2401、第二喷臂连接套2410、第二喷臂本体2420、第二驱动孔2421、滚珠组件3000、外套筒3100、外套筒周壁3110、外套筒顶壁3120、外套筒滚珠槽3130、内套筒3200、内套筒滚珠槽3210、中间套筒3300、滚珠孔3310、弱化槽3320、弱化槽立柱3330、滚珠3400。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
下面结合图1-图6详细描述根据本申请实施例的喷臂10000。喷臂10000可用于洗涤电器中，下面以将喷臂10000应用于洗碗机为例来说明喷臂10000的结构。
参照图1、图3-图6所示，根据本申请实施例的喷臂10000可以包括主喷臂1000、多个副喷臂2000以及滚珠组件3000，每个副喷臂2000均与主喷臂1000相连，当将喷臂10000安装在洗碗机的底部时，副喷臂2000位于主喷臂1000的上方，当将喷臂10000安装在洗碗机的顶部时，副喷臂2000位于主喷臂1000的下方，当将喷臂10000安装在洗碗机的侧壁时，副喷臂2000位于主喷臂1000的朝向洗碗机内部空腔的一侧。为了描述方便，下面均以喷臂10000安装在洗碗机的底部为例来说明喷臂10000的结构，此时，主喷臂1000为下喷臂，副喷臂2000为上喷臂。
主喷臂1000、多个副喷臂2000上均设置有用于向洗碗机内喷水的喷水孔，当喷水孔喷出的水落到餐具上时，可对餐具起到清洗作用。主喷臂1000、多个副喷臂2000共同喷水，有利于提高洗碗机的清洗效率。
滚珠组件3000设置在主喷臂1000与副喷臂2000之间，将主喷臂1000与副喷臂2000连接为一体，保证了主喷臂1000与副喷臂2000可同时工作，有利于提高喷臂10000工作的可靠性。
具体地，副喷臂2000相对于主喷臂1000可转动，可以增大主喷臂1000与副喷臂2000的喷洒范围，保证了喷臂10000可对餐具的整体进行清洗，从而保证了喷臂10000的清洗 效果较好。
通过设置滚珠组件3000，当副喷臂2000相对于主喷臂1000转动时，副喷臂2000与主喷臂1000之间的摩擦形式为滚动摩擦，而不是滑动摩擦，这样，滚动摩擦力对副喷臂2000转动时的阻力很小，因此可以减少由于摩擦造成的水动力损失，提高水动力的利用率。同时，副喷臂2000相对于主喷臂1000转动时的速度较快，所以通过设置滚珠组件3000，有利于提高主喷臂1000与副喷臂2000转动时的平顺性，从而有利于降低洗碗机的噪声。
此外，滚珠组件3000设置在主喷臂1000与副喷臂2000之间，将主喷臂1000与副喷臂2000巧妙地连接为一体，并且可有效降低主喷臂1000与副喷臂2000连接处的高度，从而减小了喷臂10000的高度尺寸，节省了洗碗机内部空间，为餐具的摆放留出了更多的空间，进而提升了洗碗机的餐具容量，例如可以增加洗碗机内部装载量10mm-40mm。
在具体实施例中，各个副喷臂2000的转动方向可以相同，也可以不同，例如一些副喷臂2000与另一些副喷臂2000的转动方向相反，这样，从这些副喷臂2000喷出的水柱可以在餐具表面产生揉搓力，有利于进一步提高洗净效果。主喷臂1000与某一个副喷臂2000的转动方向可以相同，也可以相反。例如在一些实施例中，各个副喷臂2000的转动方向相同，主喷臂1000与副喷臂2000的转动方向相反，由此，从主喷臂1000与副喷臂2000喷出的水柱可以在餐具表面产生揉搓力，同样有利于提高洗净效果。各个副喷臂2000喷射到餐具上的水柱方向和位置是多向的，减少了死角更容易洗净，由于水流的覆盖率较大，清洗时间也会相应减少，即有利于缩短清洗时间。
在图1的具体示例中，副喷臂2000的数量为两个，优选地，这两个副喷臂2000的转动方向相反，主喷臂1000与其中一个副喷臂2000的转动方向相同。
根据本申请实施例的喷臂10000，通过设置主喷臂1000与多个副喷臂2000，增加了喷臂10000的数量，从而增大了喷臂10000的喷水量，有利于增强喷臂10000对餐具的清洗效果，并且副喷臂2000相对于主喷臂1000可转动，从而增大了主喷臂1000与副喷臂2000的喷洒范围，并且可使从主喷臂1000与副喷臂2000喷出的水柱可以在餐具表面产生揉搓力，保证了喷臂10000可对餐具的整体进行清洗，通过在主喷臂1000与副喷臂2000之间设置滚珠组件3000，将副喷臂2000与主喷臂1000连接为一体，从而保证了喷臂10000工作的可靠性高，并且使主喷臂1000与副喷臂2000之间为滚动接触，有利于减小副喷臂2000与主喷臂1000之间的摩擦力，从而有利于减小水动力损失，提高水动力的利用率，保证水从喷臂10000喷水孔喷出时的压力较大，有利于提升洗碗机对餐具的清洗效果。同时，主喷臂1000与副喷臂2000之间通过滚珠组件3000连接，可有效降低喷臂10000的高度尺寸，从而节省了洗碗机内部空间，为餐具的摆放留出了更多的空间，提升了洗碗机的餐具容量。
参照图1、图3-图5所示，主喷臂1000可以包括主喷臂本体1100和多个主喷臂连接 套1200，多个主喷臂连接套1200设置在主喷臂本体1100的同一侧，如图1所示，多个主喷臂连接套1200均设置在主喷臂本体1100的上方，且多个主喷臂连接套1200与主喷臂本体1100固定连接，每个副喷臂2000通过一个主喷臂连接套1200实现与主喷臂1000相连，主喷臂连接套1200为中空圆柱结构，因此，通过设置主喷臂连接套1200，保证副喷臂2000与主喷臂1000可发生相对转动。
如图5所示，主喷臂本体1100和多个主喷臂连接套1200内具有连通的主腔室1001，主喷臂本体1100和多个主喷臂连接套1200可以均为中空部件，主喷臂本体1100和主喷臂连接套1200的中空位置共同形成主腔室1001，由此可以保证洗碗机水源的水可以顺利地进入主喷臂1000内，进而水经主喷臂1000上的喷水孔喷射到餐具表面，从而完成清洗餐具的操作，因此通过设置主腔室1001，可以保证主喷臂1000内存有一定量的水，从而保证了主喷臂1000可向餐具喷出水柱，进而保证了主喷臂1000的工作可靠。
如图1、图3-图5所示，主喷臂1000还可以包括主喷臂下连接套1300，主喷臂下连接套1300设置在主喷臂本体1100的下侧，具体地，主喷臂下连接套1300的顶部与主喷臂本体1100的底部固定连接。主喷臂下连接套1300的底部可与洗碗机内胆相连，也可以与喷臂座相连，水源的水可经主喷臂下连接套1300进入主腔室1001内，换言之，主喷臂下连接套1300内的空腔是主腔室1001的一部分，即主喷臂下连接套1300同样为中空件，可以保证水源的水可顺利进入到主腔室1001中。
进一步地，参考图1、图4-图5所示，每个副喷臂2000可以包括：副喷臂本体2100和副喷臂连接套2200，副喷臂连接套2200设置在副喷臂本体2100的朝向主喷臂1000的一侧，也就是说，副喷臂连接套2200位于副喷臂本体2100的下方，且副喷臂连接套2200与副喷臂本体2100固定连接。
在生产制造时，主喷臂本体1100、主喷臂连接套1200和主喷臂下连接套1300可以一体成型，副喷臂本体2100和副喷臂连接套2200也可以一体成型，由此可以简化装配过程，节省装配时间。当然，在一些未示出的实施例中，主喷臂本体1100、主喷臂连接套1200和主喷臂下连接套1300可以是可拆卸连接，副喷臂本体2100和副喷臂连接套2200也可以是可拆卸连接。
如图5所示，副喷臂本体2100和副喷臂连接套2200内具有连通的副腔室2101，副喷臂本体2100和副喷臂连接套2200可以均为中空部件，两个部件的中空位置共同形成副腔室2101，通过设置副腔室2101，可以保证副喷臂2000内存有一定量的水，从而保证了副喷臂2000可向餐具喷出水柱，进而保证了副喷臂2000的工作可靠。副喷臂连接套2200为中空圆柱结构，以保证副喷臂连接套2200与主喷臂连接套1200可相对转动。
如图5所示，副腔室2101还与主腔室1001连通，保证主腔室1001中的水可流入到副 腔室2101中，在具体实施例中，当喷臂10000接通洗碗机水源后，洗碗机水源的水首先通过主喷臂下连接套1300进入到主腔室1001中，此时主腔室1001中的水经喷水孔向外喷出，进而对洗碗机内壁或餐具进行洗净，此时，随着水源的水持续进入到主腔室1001，水源的水逐渐充满主腔室1001，主腔室1001中的水压越来越大，此时，主喷臂本体1100中的水会通过主喷臂连接套1200或副喷臂连接套2200进入到副喷臂本体2100中，也就是说，主腔室1001中的水会进入副腔室2101中，此时，副腔室2101中的水同样向外喷出，进而对洗碗机内壁或餐具进行洗净，因此，通过将副腔室2101与主腔室1001进行连通，可以保证主喷臂1000与副喷臂2000能够正常工作，主喷臂1000与副喷臂2000共同喷水，有利于提高喷水量，从而提升洗净效果。
如图1、图5-图6所示，副喷臂连接套2200与主喷臂连接套1200的连接配合处设置有滚珠组件3000，滚珠组件3000设置在主喷臂连接套1200与副喷臂连接套2200之间，将主喷臂连接套1200与副喷臂连接套2200连接为一体，进而将主喷臂1000与副喷臂2000连接为一体，可以保证主喷臂1000与副喷臂2000连接可靠，又不妨碍主喷臂1000与副喷臂2000的相对转动，从而保证了喷臂10000工作可靠性高。在本申请的一些实施例中，滚珠组件3000至少包括多个滚珠3400，多个滚珠3400可滚动地配合在副喷臂连接套2200与主喷臂连接套1200之间。
进一步地，滚珠组件3000还包括：承载基体，滚珠3400通过承载基体配合在副喷臂连接套2200与主喷臂连接套1200之间。
可选地，承载基体包括：内套筒3200、中间套筒3300、外套筒3100，内套筒3200适于与副喷臂连接套2200和主喷臂连接套1200中的其中一个配合，中间套筒3300套设在内套筒3200的外部，中间套筒3300上设置有多个滚珠孔3310，滚珠3400安装在滚珠孔3310里，且滚珠3400在中间套筒3300的径向上突出中间套筒3300的内周面和外周面，外套筒3100套设在中间套筒3300的外部，外套筒3100适于与副喷臂连接套2200和主喷臂连接套1200中的另外一个配合。
可选地，承载基体包括：内套筒3200、外套筒3100，内套筒3200适于与副喷臂连接套2200和主喷臂连接套1200中的其中一个配合，外套筒3100适于与副喷臂连接套2200和主喷臂连接套1200中的另外一个配合。
在本申请的一些实施例中，内套筒3200与副喷臂连接套2200和主喷臂连接套1200中的其中一个融合为一体，从而使得内套筒3200构成其中一个的一部分；或外套筒3100与副喷臂连接套2200和主喷臂连接套1200中的另外一个融合为一体，从而使得外套筒3100构成另外一个的一部分。
在本申请的一些实施例中，内套筒3200与副喷臂连接套2200和主喷臂连接套1200中 的其中一个融合为一体，从而使得内套筒3200构成其中一个的一部分；并且外套筒3100与副喷臂连接套2200和主喷臂连接套1200中的另外一个融合为一体，从而使得外套筒3100构成另外一个的一部分。
需要说明的是，内套筒3200与副喷臂连接套2200和主喷臂连接套1200中的其中一个融合为一体，可以是内套筒3200与副喷臂连接套2200融合为一体，也就是说，内套筒3200构成副喷臂连接套2200的一部分，即此时主喷臂连接套1200套设在副喷臂连接套2200的外侧，滚珠组件3000不包括内套筒3200这个零件，滚珠3400的内侧直接与副喷臂连接套2200滚动接触。也可以是，内套筒3200与主喷臂连接套1200融合为一体，也就是说，内套筒3200构成主喷臂连接套1200的一部分，即此时副喷臂连接套2200套设在主喷臂连接套1200的外侧，滚珠组件3000不包括内套筒3200这个零件，滚珠3400的内侧直接与主喷臂连接套1200滚动接触。
类似地，外套筒3100与副喷臂连接套2200和主喷臂连接套1200中的另外一个融合为一体，可以是外套筒3100与主喷臂连接套1200融合为一体，也就是说，外套筒3100构成主喷臂连接套1200的一部分，即此时主喷臂连接套1200套设在副喷臂连接套2200的外侧，滚珠组件3000不包括外套筒3100这个零件，滚珠3400的外侧直接与主喷臂连接套1200滚动接触。也可以是，外套筒3100与副喷臂连接套2200融合为一体，也就是说，外套筒3100构成副喷臂连接套2200的一部分，即此时副喷臂连接套2200套设在主喷臂连接套1200的外侧，滚珠组件3000不包括外套筒3100这个零件，滚珠3400的外侧直接与副喷臂连接套2200滚动接触。
下面以主喷臂连接套1200套设在副喷臂连接套2200的外侧为例来说明滚珠组件3000的结构。
例如，在图1、图5-图6所示的实施例中，滚珠组件3000可以包括：外套筒3100、内套筒3200、中间套筒3300以及滚珠3400，外套筒3100、内套筒3200以及中间套筒3300可以均为圆环件，内套筒3200设置在外套筒3100的内部，中间套筒3300设置在外套筒3100与内套筒3200之间，即在滚珠组件3000的从外向内的方向上依次为外套筒3100、中间套筒3300以及内套筒3200，主喷臂连接套1200套设在副喷臂连接套2200的外围，外套筒3100可与主喷臂连接套1200固定连接，内套筒3200可与副喷臂连接套2200固定连接，滚珠3400设置在中间套筒3300中，且滚珠3400可在中间套筒3300中相对于外套筒3100以及内套筒3200转动，从而保证内套筒3200可相对于外套筒3100进行转动，进而可以保证副喷臂2000可相对于主喷臂1000进行转动。
滚珠3400在中间套筒3300的径向上突出中间套筒3300的内周面和外周面，也就是说，滚珠3400的直径大于中间套筒3300的壁厚，滚珠3400有且仅有部分设置在中间套筒3300 中，在具体实施例中，滚珠3400突出中间套筒3300的内周面部分可与内套筒3200的外表面滚动接触，滚珠3400突出中间套筒3300的外周面部分可与外套筒3100的内表面滚动接触，又由于内套筒3200与副喷臂连接套2200固定连接，且外套筒3100与主喷臂连接套1200固定连接，因此，主喷臂1000与副喷臂2000之间通过滚珠组件3000实现间接连接，主喷臂1000、副喷臂2000与滚珠组件3000三者连接的结构简单、稳定。
当副喷臂2000相对于主喷臂1000转动时，滚珠3400发生滚动，从而使内套筒3200与外套筒3100发生相对转动，又因为主喷臂1000与外套筒3100固定连接，副喷臂2000与内套筒3200固定连接，由此实现副喷臂2000与主喷臂1000的相对转动。
具体地，如图2、图6所示，中间套筒3300上设置有多个滚珠孔3310，滚珠3400可转动地安装在滚珠孔3310里，滚珠孔3310为滚珠3400的固定提供了支撑，保证多个滚珠3400的相对位置不变，防止多个滚珠3400之间发生碰撞、挤压，由此可以提高滚珠组件3000的工作稳定性。可选地，滚珠3400的数量与滚珠孔3310的数量相同。
在具体实施例中，滚珠3400的数量为多个，且多个滚珠3400可沿中间套筒3300的周向均匀分布，由此可以提高主喷臂1000与副喷臂2000转动时的平稳性。优选地，滚珠3400的数量为偶数，由此可以保证滚珠组件3000受力均衡，缓解应力集中现象。
可选地，滚珠3400的直径为3mm-8mm，滚珠3400的数量为4个-12个。
通过设置滚珠组件3000，保证了副喷臂2000相对于主喷臂1000转动时的摩擦力较小，有利于提高主喷臂1000与副喷臂2000转动时的平顺性，从而有利于降低洗碗机的噪声。
中间套筒3300的作用主要有三点：(1)通过在中间套筒3300上开设滚珠孔3310，并将滚珠3400安装在滚珠孔3310内，可以固定、限位滚珠3400的位置，防止滚珠3400堆积；(2)起到隔离食物残渣的作用，防止食物小残渣进入滚珠槽，而造成摩擦；(3)起到强化作用，又能隔离副喷臂2000震动，防止喷臂10000晃动严重。
进一步地，参考图1、图6所示，外套筒3100的内周面上设置有适于与滚珠3400配合的外套筒滚珠槽3130，内套筒3200的外周面上设置有适于与滚珠3400配合的内套筒滚珠槽3210，外套筒滚珠槽3130、内套筒滚珠槽3210均为周向环形槽,由此可以保证副喷臂2000相对于主喷臂1000整圈转动的顺畅性，同时，滚珠组件3000为一独立的模块化部件，安装拆卸方便，也减少了副喷臂2000或主喷臂1000的加工工艺成本。滚珠3400与外套筒滚珠槽3130、内套筒滚珠槽3210之间为滚动接触，摩擦力较小。在具体实施例中，外套筒滚珠槽3130、内套筒滚珠槽3210的直径可以与滚珠3400的直径相等，或者也可以略大于滚珠3400的直径，由此可保证滚珠3400与外套筒滚珠槽3130、内套筒滚珠槽3210配合良好。
结合图6所示，在主喷臂连接套1200的中心轴线方向上，外套筒滚珠槽3130、内套筒 滚珠槽3210、滚珠孔3310的位置相对应，滚珠3400部分地设置在滚珠孔3310中。滚珠3400的外侧与外套筒滚珠槽3130接触，滚珠3400的内侧与内套筒滚珠槽3210接触，从而完成外套筒3100与内套筒3200的间接连接，并且，外套筒滚珠槽3130、内套筒滚珠槽3210、滚珠孔3310的位置相对应，可以防止副喷臂2000相对于主喷臂1000转动时，滚珠3400所滑动的轨迹与外套筒滚珠槽3130以及内套筒滚珠槽3210的轨迹不同，从而受到挤压，导致副喷臂2000无法转动。
具体地，外套筒3100可以包括：外套筒周壁3110和外套筒顶壁3120，外套筒顶壁3120设置在外套筒周壁3110的远离主喷臂1000的一端，如图6所示，外套筒顶壁3120设置在外套筒周壁3110的上端，且外套筒顶壁3120沿外套筒周壁3110的径向向内延伸，即外套筒3100的横截面的一半呈倒“L”形，并且外套筒顶壁3120的内径稍大于内套筒3200的外径大小，从而保证外套筒3100与内套筒3200相对转动时，外套筒3100与内套筒3200无接触，进而保证主喷臂1000与副喷臂2000可正常转动，并且外套筒顶壁3120位于滚珠3400的上方，可以为滚珠3400进行遮挡，防止洗碗机中的残渣进入到滚珠组件3000中而阻碍滚珠组件3000的正常工作，并且可以防止滚珠3400从滚珠组件3000中滑出，外套筒滚珠槽3130设置在外套筒周壁3110的内周面上，保证滚珠3400可沿外套筒滚珠槽3130滚动，从而保证滚珠组件3000工作的可靠性高。
具体地，滚珠孔3310设置在中间套筒3300的顶部，滚珠孔3310为优弧孔，且滚珠孔3310的顶部缺口处形成滚珠取放口，滚珠3400经滚珠取放口进入滚珠孔3310或从滚珠孔3310出来，由此方便了滚珠3400在滚珠孔3310内的安装与拆卸。优弧孔是圆心角大于180°且小于360°的孔，由此可以使每个滚珠3400的大部分位于滚珠孔3310内，防止安装完成后，滚珠3400从滚珠孔3310内脱落。在安装滚珠3400时，可以借助外力将滚珠取放口撑开，随后将滚珠3400经滚珠取放口安装在滚珠孔3310内，接着撤去外力，滚珠孔3310的弹性变形随之消失，滚珠孔3310恢复原状，此时滚珠孔3310紧紧包裹滚珠3400，使得滚珠3400在滚珠孔3310内的安装更加牢固、可靠。
进一步地，相邻的两个滚珠孔3310之间设置有弱化槽3320，通过设置弱化槽3320，可使相邻的两个滚珠孔3310之间的刚度较小，由此在安装滚珠3400时，滚珠孔3310容易变形，从而减小了滚珠3400的安装或拆卸难度。
弱化槽3320内设置有弱化槽立柱3330,可选地，弱化槽立柱3330的中心轴线与中间套筒3300的中心轴线平行，由此有利于简化中间套筒3300的加工工艺。通过设置弱化槽立柱3330，可以起到一定的强化作用，从而防止弱化槽3320过度削弱中间套筒3300的刚度，进而有利于提高滚珠组件3000的工作可靠性。
当然，在一些未示出的实施例中，滚珠孔3310还可以设置在中间套筒3300的中间位 置，此时，滚珠孔3310为贯穿中间套筒3300壁厚的圆孔。
可选地，滚珠3400为塑料滚珠3400或不锈钢滚珠3400，因为喷臂10000的工作环境充满了水，喷臂10000长期处于湿热环境，易导致滚珠3400生锈卡滞，塑料滚珠3400或不锈钢滚珠3400的防腐蚀能力较强，可以有效减缓甚至避免滚珠3400生锈。
具体地，外套筒3100安装在主喷臂连接套1200的内部，且主喷臂连接套1200的内径与外套筒3100的外径尺寸相等，优选地，主喷臂连接套1200与外套筒3100之间为过盈配合，从而保证外套筒3100可牢靠地固定在主喷臂连接套1200内，进而可以保证滚珠组件3000与主喷臂1000连接可靠。类似地，内套筒3200嵌套在副喷臂连接套2200上，且副喷臂连接套2200的外径与内套筒3200的内径尺寸相等，优选地，副喷臂连接套2200与内套筒3200之间为过盈配合，从而保证内套筒3200可牢靠地固定在副喷臂连接套2200上，进而可以保证滚珠组件3000与副喷臂2000连接可靠，因此，通过滚珠组件3000分别与主喷臂1000以及副喷臂2000连接，可以保证主喷臂1000与副喷臂2000之间连接可靠，从而保证了主喷臂1000与副喷臂2000工作可靠性高。
基于图6的实施例，本申请的滚珠组件3000可以具有多种变形方式，这些变形方式都落入本申请的保护范围内。下面结合图6对根据本申请实施例的滚珠组件3000的多个变型例进行概述。
例如，在其中第一个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400，即相比上述图6的实施例而言，减少了外套筒3100、中间套筒3300和内套筒3200，利用滚珠3400直接与主喷臂连接套1200和副喷臂连接套2200配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时，主喷臂连接套1200的内周面上设置有适于与滚珠3400配合的主喷臂滚珠槽，副喷臂连接套2200的外周面上设置有适于与滚珠3400配合的副喷臂滚珠槽。
例如，在其中第二个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400和内套筒3200，即相比上述图6的实施例而言，减少了中间套筒3300和外套筒3100，利用滚珠3400直接与内套筒3200和主喷臂连接套1200配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时，主喷臂连接套1200的内周面上设置有适于与滚珠3400配合的主喷臂滚珠槽。
例如，在其中第三个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400和外套筒3100，即相比上述图6的实施例而言，减少了中间套筒3300和内套筒3200，利用滚珠3400直接与副喷臂连接套2200和外套筒3100配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时，副喷臂连接套2200的外周面上设置有适于与滚珠3400配合的副喷臂滚珠槽。
例如，在其中第四个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400、内套筒3200和外套筒3100，即相比上述图6的实施例而言，减少了中间套筒3300，利用滚珠3400直接与内套筒3200和外套筒3100配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时外套筒3100可与主喷臂连接套1200过盈配合，内套筒3200可与副喷臂连接套2200过盈配合。
例如，在其中第五个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400和中间套筒3300，即相比上述图6的实施例而言，减少了内套筒3200和外套筒3100，利用滚珠3400直接与主喷臂连接套1200和副喷臂连接套2200配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时，主喷臂连接套1200的内周面上设置有适于与滚珠3400配合的主喷臂滚珠槽，副喷臂连接套2200的外周面上设置有适于与滚珠3400配合的副喷臂滚珠槽。
例如，在其中第六个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400、内套筒3200和中间套筒3300，即相比上述图6的实施例而言，减少了外套筒3100，利用滚珠3400直接与内套筒3200和主喷臂连接套1200配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时，主喷臂连接套1200的内周面上设置有适于与滚珠3400配合的主喷臂滚珠槽。
例如，在其中第七个未示出的实施例中，滚珠组件3000可以仅包括：滚珠3400、外套筒3100和中间套筒3300，即相比上述图6的实施例而言，减少了内套筒3200，利用滚珠3400直接与副喷臂连接套2200和外套筒3100配合，同样可以实现主喷臂连接套1200和副喷臂连接套2200的滚动相连。此时，副喷臂连接套2200的外周面上设置有适于与滚珠3400配合的副喷臂滚珠槽。
当然，副喷臂连接套2200也可以套设在主喷臂连接套1200的外侧，此时，滚珠组件3000的内侧与主喷臂连接套1200接触，滚珠组件3000的外侧与副喷臂连接套2200接触，对于副喷臂连接套2200套设在主喷臂连接套1200内侧的情况与上述七种实施例相似，这里不再赘述。
在一些实施例中，滚珠组件3000的高度为5mm-25mm，一方面，滚珠组件3000应具有一定高度来保证其负载能力满足本申请要求(例如50N)，因此滚珠组件3000的高度最低为5mm，另一方面，主喷臂1000与副喷臂2000间距较大时，喷臂10000会与洗碗机内部件干涉且会减少装载量，因此滚珠组件3000的高度最大为25mm，由此可以减小主喷臂连接套1200和副喷臂连接套2200的高度尺寸，也就减小了主喷臂1000与副喷臂2000之间的距离，从而降低了喷臂10000的整体高度尺寸。可选地，滚珠组件3000的高度可以是10mm、15mm、20mm、22mm等。
进一步地，副喷臂2000可以包括：第一喷臂2300和第二喷臂2400，副腔室2101可以包括：第一喷臂2300内的第一腔室2301以及第二喷臂2400内的第二腔室2401，也就是说，在图1、图3-图5所展示的实施例中，副喷臂2000的数量为两个，分别为第一喷臂2300与第二喷臂2400，第一喷臂2300与第二喷臂2400设置在主喷臂1000的上方，具体而言，第一喷臂2300可以位于主喷臂1000的左上方，第二喷臂2400可以位于主喷臂1000的右上方，同样地，第一喷臂2300也可以位于主喷臂1000的右上方，第二喷臂2400也可以位于主喷臂1000的左上方，为了描述方便，下面均以第一喷臂2300位于主喷臂1000的左上方，第二喷臂2400位于主喷臂1000的右上方为例来说明第一喷臂2300与第二喷臂2400的结构。
第一喷臂2300中设有第一腔室2301，第二喷臂2400中设有第二腔室2401，从而保证第一喷臂2300与第二喷臂2400中均可保留一定量的水，进而保证第一喷臂2300与第二喷臂2400可正常工作。
需要说明的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
如图1所示，主喷臂1000可以包括：主喷臂本体1100和主喷臂第一连接套1210、主喷臂第二连接套1220，主喷臂第一连接套1210、主喷臂第二连接套1220设置在主喷臂本体1100的同一侧，即主喷臂第一连接套1210、主喷臂第二连接套1220均设置在主喷臂本体1100的上方。
在具体实施例中，主喷臂第一连接套1210适于与第一喷臂连接套2310连接，主喷臂第二连接套1220适于与第二喷臂连接套2410连接，从而保证第一喷臂2300与第二喷臂2400可与主喷臂1000连接，主喷臂本体1100和主喷臂第一连接套1210、主喷臂第二连接套1220内具有连通的主腔室1001，从而保证了主腔室1001中的水可通过主喷臂第一连接套1210、主喷臂第二连接套1220顺利地进入到第一腔室2301以及第二腔室2401中，进而保证了第一喷臂2300与第二喷臂2400可正常工作。
参考图5所示，第一喷臂2300可以包括：第一喷臂本体2320和第一喷臂连接套2310，第一喷臂连接套2310设置在第一喷臂本体2320的朝向主喷臂1000的一侧，即第一喷臂连接套2310位于第一喷臂本体2320的下方，第一喷臂本体2320和第一喷臂连接套2310内具有连通的第一腔室2301，在具体实施例中，第一喷臂连接套2310可与主喷臂1000左侧的主喷臂第一连接套1210连接，从而保证第一喷臂2300与主喷臂1000连接，并且第一腔室2301与主腔室1001连通，从而保证主腔室1001中的水可顺利地进入到第一腔室2301 中。
第一喷臂连接套2310与主喷臂第一连接套1210的连接配合处设置有滚珠组件3000，从而保证第一喷臂2300相对于主喷臂1000转动时，第一喷臂2300与主喷臂1000之间的转动摩擦为滚动摩擦，可以减少水动力损失，保证第一喷臂2300工作稳定性高。
如图5所示，第二喷臂2400可以包括：第二喷臂本体2420和第二喷臂连接套2410，第二喷臂连接套2410设置在第二喷臂本体2420的朝向主喷臂1000的二侧，即第二喷臂连接套2410位于第二喷臂本体2420的下方，第二喷臂本体2420和第二喷臂连接套2410内具有连通的第二腔室2401，在具体实施例中，第二喷臂连接套2410可与主喷臂1000右侧的主喷臂第二连接套1220连接，从而保证第二喷臂2400与主喷臂1000连接，并且第二腔室2401与主腔室1001连通，从而保证主腔室1001中的水可顺利地进入到第二腔室2401中。
第二喷臂连接套2410与主喷臂第二连接套1220的连接配合处设置有滚珠组件3000，从而保证第二喷臂2400相对于主喷臂1000转动时，第二喷臂2400与主喷臂1000之间的转动摩擦为滚动摩擦，可以减少水动力损失，保证第二喷臂2400工作稳定性高。
优选地，主喷臂第一连接套1210、主喷臂第二连接套1220关于主喷臂下连接套1300对称，从而保证第一喷臂2300和第二喷臂2400关于主喷臂下连接套1300对称，可以保证第一喷臂2300与第二喷臂2400对主喷臂1000的压力在主喷臂下连接套1300的轴线上对称，从而保证喷臂10000工作时的稳定性，并且对称式的设计不仅美观，而且在装配与拆卸第一喷臂2300与第二喷臂2400时无左右之分，便于装配与拆卸。
如图1、图3、图5所示，第一喷臂2300上设置有用于驱动第一喷臂2300绕第一方向转动的第一驱动孔2321，第一驱动孔2321与第一腔室2301连通，保证第一腔室2301中的水柱可从第一驱动孔2321中喷出。当第一喷臂2300内部的水柱从第一驱动孔2321喷出时，第一喷臂2300会受到水柱从第一驱动孔2321喷出时的反作用力(即反向驱动力)，此时，第一喷臂2300会在反作用力的作用下绕第一方向转动，第一方向与第一驱动孔2321的开孔方向相反。随着水柱不断地从第一驱动孔2321中喷出，第一喷臂2300可持续地进行转动，从第一驱动孔2321喷出的水柱随着第一喷臂2300的转动会洒向四周，从第一喷臂2300喷水孔喷出的水流也进入洗碗机的工作区域，进而二者配合将洗碗机中的餐具或洗碗机内壁的污渍洗净。
第二喷臂2400上设置有用于驱动第二喷臂2400绕第二方向转动的第二驱动孔2421，第二驱动孔2421与第二腔室2401连通，保证第二腔室2401中的水柱可从第二驱动孔2421中喷出。当水柱从第二驱动孔2421喷出时，第二喷臂2400会受到水柱从第二驱动孔2421喷出时的反作用力，此时，第二喷臂2400会在反作用力的作用下绕第二方向转动，第二方 向与第二驱动孔2421的开孔方向相反。随着水源不断地从第二驱动孔2421中喷出，第二喷臂2400可持续地进行转动，并且当第二喷臂2400转动时，将从第二驱动孔2421喷出的水柱洒向四周，从第二喷臂2400喷水孔喷出的水流也进入洗碗机的工作区域，从而第二喷臂2400和第一喷臂2300共同配合将洗碗机中的餐具或洗碗机内壁的污渍洗净。
在第一喷臂本体2320和第二喷臂本体2420的同一端，第一驱动孔2321与第二驱动孔2421的朝向相反，从而保证第一喷臂2300和第二喷臂2400的转动方向相反，也就是说，第一方向与第二方向相反，例如第一喷臂2300可沿逆时针转动，第二喷臂2400可沿顺时针转动，当然在一些未展示的实施例中，第一喷臂2300也可以沿顺时针转动，第二喷臂2400可沿逆时针转动，此时，从第一喷臂2300的第一驱动孔2321以及第二喷臂2400的第二驱动孔2421喷出的水柱沿相反方向喷出，当从第一驱动孔2321和第二驱动孔2421喷出的水柱同时落在餐具或洗碗机内壁上时，由于所喷射的水柱着力到餐具或洗碗机内壁上后清洗的方向不一致，从而使从第一驱动孔2321以及第二驱动孔2421喷出的水柱在餐具或洗碗机内壁上产生揉搓力，进而增强了喷臂10000的洗净效果，可以保证餐具或洗碗机内壁清洗干净。此外，第一喷臂2300和第二喷臂2400反向转动，也可使从第一喷臂2300喷水孔喷出的水和从第二喷臂2400喷水孔喷出的水在餐具上产生揉搓力，从而进一步提升喷臂10000的洗净效果。
主喷臂1000上设置有用于驱动主喷臂1000绕第一方向或第二方向转动的主驱动孔1101，也就是说，通过改变主驱动孔1101的朝向，可以改变主喷臂1000的转动方向，使主喷臂1000沿第一方向转动，或沿第二方向转动，为了描述方便，下面均以沿第一方向转动为例来说明主喷臂1000的工作过程。
当主喷臂1000沿第一方向转动时，在主喷臂1000与第一喷臂2300的同一端，主驱动孔1101与第一驱动孔2321的朝向相同，当主喷臂1000内部的水柱从主驱动孔1101喷出时，主喷臂1000会受到水柱从主驱动孔1101喷出时的反作用力(即反向驱动力)，此时，主喷臂1000会在反作用力的作用下绕第一方向转动，第一方向与主驱动孔1101的开孔方向相反。随着水柱不断地从主驱动孔1101中喷出，主喷臂1000可持续地进行转动，从主驱动孔1101喷出的水柱随着主喷臂1000的转动会洒向四周，从主喷臂1000喷水孔喷出的水流也进入洗碗机的工作区域，进而二者配合将洗碗机中的餐具或洗碗机内壁的污渍洗净，通过设置主喷臂1000，可以为副喷臂2000供水，同时主喷臂1000与副喷臂2000共同喷水，可以进一步地加强喷臂10000的清洗能力，可以保证喷臂10000工作的效果好。
具体地，参考图3所示，第一驱动孔2321设置在第一喷臂本体2320的端部，第二驱动孔2421设置在第二喷臂本体2420的端部，主驱动孔1101设置在主喷臂1000的端部，可以保证当水柱从第一驱动孔2321、第二驱动孔2421以及主驱动孔1101中喷出时，力臂 较长，有利于增大第一喷臂2300、第二喷臂2400、主喷臂1000的转动力矩，从而保证第一喷臂2300、第二喷臂2400以及主喷臂1000具有较大的转速，而从第一驱动孔2321、第二驱动孔2421以及主驱动孔1101喷出的水柱落在洗碗机内壁以及餐具的拍打力也就越大，进而有利于提高喷臂10000的清洗效果。
在一些可选的实施例中，第一方向和第二方向可以相同，此时，在第一喷臂本体2320和第二喷臂本体2420的同一端，第一驱动孔2321与第二驱动孔2421的朝向相同，第一喷臂2300和第二喷臂2400同向转动，可以增大喷臂10000的喷水量，同样有利于提升喷臂10000的洗净效果。通过改变第一驱动孔2321与第二驱动孔2421的孔径，可以改变第一驱动孔2321对第一喷臂2300的驱动力以及第二驱动孔2421对第二喷臂2400的驱动力，从而改变第一喷臂2300和第二喷臂2400的转动速度，使第一喷臂2300和第二喷臂2400实现同速同向转动或者异速同向转动。
可选地，第一喷臂本体2320的长度是主喷臂本体1100的长度的0.5-1倍，第二喷臂本体2420的长度是主喷臂本体1100的长度的0.5-1倍，也就是说，第一喷臂本体2320与第二喷臂本体2420的长度均小于或等于主喷臂本体1100的长度，一方面，第一喷臂2300与第二喷臂2400等高度设置在主喷臂1000的上方，且第一喷臂2300与第二喷臂2400均与主喷臂1000连接，因此，第一喷臂本体2320与第二喷臂本体2420可设置的最大长度便是与主喷臂本体1100相等，另一方面，第一喷臂本体2320与第二喷臂本体2420设置得较短，由此可以减轻第一喷臂2300与第二喷臂2400的重量，从而保证第一喷臂2300与第二喷臂2400可以顺利转动，并且整个喷臂10000的结构比较稳定，不易发生倾翻。此外，第一喷臂本体2320与第二喷臂本体2420的长度小于主喷臂本体1100的长度，可使得第一腔室2301与第二腔室2401中的容积小于主腔室1001的容积，在清洗阶段，大部分水流优先进入主腔室1001中，主腔室1001中的水压较高，可以保证从主喷臂1000喷出的水柱压力较大，主喷臂1000可以顺利地转动。通过将第一喷臂本体2320与第二喷臂本体2420的长度设置得较短，可以减小第一腔室2301与第二腔室2401的容积，从而保证第一腔室2301与第二腔室2401内也有足够高的水压，进而可以保证从第一喷臂2300与第二喷臂2400喷出的水柱压力较大，以此保证第一喷臂2300与第二喷臂2400可顺利地转动。
在一些未示出的实施例中，第一喷臂2300与第二喷臂2400相对于主喷臂1000的高度不相等，例如第一喷臂本体2320可以位于第二喷臂本体2420的上方。
根据本申请另一方面实施例的洗涤电器，包括上述的喷臂10000。洗涤电器可以是洗碗机，也可以是果蔬清洗机、医疗清洗机等具有洗涤功能的洗涤电器，其效果与将喷臂10000设置在洗碗机内的效果类似，这里不再一一赘述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例” 或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。此外，本领域的技术人员可以将本说明书中描述的不同实施例或示例进行接合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (18)

  1. 一种喷臂，其特征在于，包括：
    主喷臂；
    多个副喷臂，每个所述副喷臂与所述主喷臂相连，且所述副喷臂相对于所述主喷臂可转动；
    滚珠组件，每个所述副喷臂与所述主喷臂的连接配合处均设置有所述滚珠组件。
  2. 根据权利要求1所述的喷臂，其特征在于，所述主喷臂包括：主喷臂本体和多个主喷臂连接套，多个所述主喷臂连接套设置在所述主喷臂本体的同一侧，每个所述副喷臂通过一个所述主喷臂连接套实现与所述主喷臂相连。
  3. 根据权利要求2所述的喷臂，其特征在于，每个所述副喷臂包括：副喷臂本体和副喷臂连接套，所述副喷臂连接套设置在所述副喷臂本体的朝向所述主喷臂的一侧，所述副喷臂连接套与所述主喷臂连接套的连接配合处设置有所述滚珠组件。
  4. 根据权利要求3所述的喷臂，其特征在于，所述滚珠组件至少包括多个滚珠，多个所述滚珠可滚动地配合在所述副喷臂连接套与所述主喷臂连接套之间。
  5. 根据权利要求4所述的喷臂，其特征在于，所述滚珠组件还包括：承载基体，所述滚珠通过所述承载基体配合在所述副喷臂连接套与所述主喷臂连接套之间。
  6. 根据权利要求5所述的喷臂，其特征在于，所述承载基体包括：
    内套筒，所述内套筒适于与所述副喷臂连接套和所述主喷臂连接套中的其中一个配合；
    中间套筒，所述中间套筒套设在所述内套筒的外部，所述中间套筒上设置有多个滚珠孔，所述滚珠安装在所述滚珠孔里，且所述滚珠在所述中间套筒的径向上突出所述中间套筒的内周面和外周面；
    外套筒，所述外套筒套设在所述中间套筒的外部，所述外套筒适于与所述副喷臂连接套和所述主喷臂连接套中的另外一个配合。
  7. 根据权利要求5所述的喷臂，其特征在于，所述承载基体包括：
    内套筒，所述内套筒适于与所述副喷臂连接套和所述主喷臂连接套中的其中一个配合；
    外套筒，所述外套筒适于与所述副喷臂连接套和所述主喷臂连接套中的另外一个配合。
  8. 根据权利要求6或7所述的喷臂，其特征在于，所述内套筒与所述副喷臂连接套和所述主喷臂连接套中的所述其中一个融合为一体，从而使得所述内套筒构成所述其中一个的一部分；或
    所述外套筒与所述副喷臂连接套和所述主喷臂连接套中的所述另外一个融合为一体，从而使得所述外套筒构成所述另外一个的一部分。
  9. 根据权利要求6所述的喷臂，其特征在于，所述内套筒与所述副喷臂连接套和所述主喷臂连接套中的所述其中一个融合为一体，从而使得所述内套筒构成所述其中一个的一部分；和
    所述外套筒与所述副喷臂连接套和所述主喷臂连接套中的所述另外一个融合为一体，从而使得所述外套筒构成所述另外一个的一部分。
  10. 根据权利要求6或7所述的喷臂，其特征在于，所述外套筒的内周面上设置有适于与所述滚珠配合的外套筒滚珠槽，所述内套筒的外周面上设置有适于与所述滚珠配合的内套筒滚珠槽，所述外套筒滚珠槽、所述内套筒滚珠槽均为周向环形槽。
  11. 根据权利要求10所述的喷臂，其特征在于，所述外套筒包括：外套筒周壁和外套筒顶壁，所述外套筒顶壁设置在所述外套筒周壁的远离所述主喷臂的一端，且所述外套筒顶壁沿所述外套筒周壁的径向向内延伸，所述外套筒滚珠槽设置在所述外套筒周壁的内周面上。
  12. 根据权利要求6所述的喷臂，其特征在于，所述滚珠孔设置在所述中间套筒的顶部，所述滚珠孔为优弧孔且顶部缺口处形成滚珠取放口。
  13. 根据权利要求12所述的喷臂，其特征在于，相邻的两个所述滚珠孔之间设置有弱化槽，且所述弱化槽内设置有弱化槽立柱。
  14. 根据权利要求3所述的喷臂，其特征在于，所述副喷臂包括：第一喷臂和第二喷臂，所述第一喷臂上设置有用于驱动所述第一喷臂绕第一方向转动的第一驱动孔，所述第二喷臂上设置有用于驱动所述第二喷臂绕第二方向转动的第二驱动孔，所述第一方向与所述第二方向相同或相反，所述主喷臂上设置有用于驱动所述主喷臂绕所述第一方向或所述第二方向转动的主驱动孔。
  15. 根据权利要求14所述的喷臂，其特征在于，所述第一喷臂的长度是所述主喷臂本体的长度的0.5-1倍，所述第二喷臂的长度是所述主喷臂本体的长度的0.5-1倍。
  16. 根据权利要求4-7中任一项所述的喷臂，其特征在于，所述滚珠为塑料滚珠或不锈钢滚珠。
  17. 根据权利要求1-7中任一项所述的喷臂，其特征在于，所述滚珠组件的高度为5mm-25mm。
  18. 一种洗涤电器，其特征在于，包括根据权利要求1-17中任一项所述的喷臂。
PCT/CN2019/094245 2018-08-28 2019-07-01 喷臂及具有其的洗涤电器 WO2020042749A1 (zh)

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