WO2022267517A1 - 中喷臂组件、中喷臂装置和洗碗机 - Google Patents

中喷臂组件、中喷臂装置和洗碗机 Download PDF

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Publication number
WO2022267517A1
WO2022267517A1 PCT/CN2022/078389 CN2022078389W WO2022267517A1 WO 2022267517 A1 WO2022267517 A1 WO 2022267517A1 CN 2022078389 W CN2022078389 W CN 2022078389W WO 2022267517 A1 WO2022267517 A1 WO 2022267517A1
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WO
WIPO (PCT)
Prior art keywords
spray arm
middle spray
assembly
rolling
tubular portion
Prior art date
Application number
PCT/CN2022/078389
Other languages
English (en)
French (fr)
Inventor
张婧宜
李翔
杜光辉
陈盈杰
王涛
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
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 CN202121434527.7U external-priority patent/CN217659708U/zh
Priority claimed from CN202110716258.1A external-priority patent/CN115517603A/zh
Application filed by 佛山市顺德区美的洗涤电器制造有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Publication of WO2022267517A1 publication Critical patent/WO2022267517A1/zh

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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

Definitions

  • the present application relates to the technical field of dishwashers, in particular to a central spray arm assembly, a central spray arm device and a dishwasher.
  • Household dishwashers generally adopt the spray washing method. Driven by the washing pump, the water flow enters the spray arm and sprays out through the spray hole on the spray arm, and drives the spray arm to rotate, spraying and rinsing through the rotating spray arm.
  • the surface of the tableware to remove stains from the surface of the tableware.
  • the structure of the spray arm is closely related to the cleaning effect of the dishwasher, and has always been the focus of research in the field of dishwashers.
  • the main purpose of this application is to propose a central spray arm assembly, which aims to improve the cleaning effect of the dishwasher.
  • the central spray arm assembly proposed by this application is used in conjunction with the matching assembly of the dishwasher, including:
  • the first bearing structure includes a first rolling fitting, a first rolling body and a second rolling fitting that are sequentially arranged in the direction in which the matching assembly and the middle spray arm are arranged, and the first rolling fitting is arranged on On the middle spray arm, the second rolling fitting is used to connect the fitting assembly, and the first rolling fitting can move on the second rolling fitting through the first rolling body, so that the middle The spray arm is rotatable relative to the mating assembly.
  • it also includes a first connection structure connecting the first rolling fitting and the middle spray arm, and a second connecting structure connecting the second rolling fitting and the fitting assembly, the second connection A structure is connected to the first connecting structure.
  • the first connection structure includes a first tubular portion and a first annular portion sheathed on the first tubular portion;
  • the second connection structure includes a second tubular portion and a second annular portion within the second tubular portion;
  • Both the first bearing structure and the first annular portion are located in the second tubular portion, the first rolling fitting is closer to the first annular portion than the second rolling fitting, so
  • the first tubular part is inserted into the through hole of the second annular part and connected to the middle spray arm, and the end of the second tubular part close to the first annular part is connected to the matching assembly connected such that the first annular portion presses on the first rolling fit and the second annular portion presses on the second rolling fit.
  • the first bearing structure further includes a first connecting portion and a second connecting portion, and in the direction of arrangement of the mating assembly and the middle spray arm, the first connecting portion and the first connecting portion The rolling fitting is connected, and the second connecting part is connected with the second rolling fitting;
  • the first connection part is connected with the middle spray arm, and the second connection part is connected with the first connection part and the matching assembly.
  • the first connecting part is a first tubular part
  • the first rolling fitting is a first annular part, and is sheathed on the first tubular part
  • the second connecting part is a second tubular part
  • the second rolling fitting is a second annular part, and is arranged in the second tubular part
  • the first tubular portion is inserted into the through hole of the second annular portion, the first annular portion is located in the second tubular portion and pressed against one side of the first rolling element, One end of the second tubular portion close to the first annular portion is connected to the matching assembly, and the second annular portion is pressed against the other side of the first rolling body.
  • the middle spray arm has a first communication pipe, the second annular portion and the first bearing structure are sleeved outside the first communication pipe, and inserted into the first communication pipe.
  • the first tubular part in the pipe makes the first annular part, the first bearing structure, the second annular part and the middle spray arm tightly contact in sequence.
  • the matching assembly has a second communication pipe and/or a third communication pipe, the second tubular portion is inserted into the second communication pipe, and the third communication pipe is inserted into the Inside the first tubular portion.
  • the end of the first communicating pipe away from the matching component has a first stepped structure
  • the inner wall of the first tubular portion has a second stepped structure
  • the second stepped structure is the same as the first stepped structure. The step structure snaps together.
  • the application also proposes a middle spray arm device, comprising:
  • middle spray arm assemblies there are two middle spray arm assemblies, namely the first middle spray arm assembly and the second middle spray arm assembly, and the middle spray arm of the first middle spray arm assembly is connected to the mating assembly and the second middle spray arm assembly. the middle spray arm of the second middle spray arm assembly;
  • the middle spray arm of the first middle spray arm assembly is the match of the second middle spray arm assembly components.
  • the middle spray arm of the middle spray arm assembly is a first middle spray arm
  • the auxiliary assembly includes a second middle spray arm and a second bearing structure
  • the second bearing structure The first middle spray arm is connected with the second middle spray arm, and the second middle spray arm can rotate relative to the first middle spray arm.
  • the first middle spray arm includes a first part and a second part located in the length direction, taking the connecting part of the matching component and the first middle spray arm as a boundary;
  • Said first part and/or said second part are provided with at least one of said auxiliary components.
  • the present application also proposes a dishwasher, including the above-mentioned central spray arm device.
  • the middle spray arm is connected with the matching component through the first bearing structure, and can rotate relative to the matching component.
  • the first bearing structure can make the relative rotation friction between the middle spray arm and the mating assembly be rolling friction, thereby greatly reducing the friction between the middle spray arm and the mating assembly
  • the frictional force of the relative rotation significantly improves the smoothness of the rotation of the middle spray arm, thereby increasing the speed of the middle spray arm.
  • increasing the rotation speed of the middle spray arm can improve the washing effect of the dishwasher.
  • the upwardly sprayed water will generate a downward reaction force on the middle spray arm.
  • the gravity of the middle spray arm itself is downward, making the middle spray arm easy to fall off.
  • the middle spray arm and the matching component are connected through the first bearing structure, which can withstand axial force, thereby reducing the probability of the middle spray arm falling off.
  • Fig. 1 is a three-dimensional structural schematic diagram of a central spray arm device according to an embodiment of the present application
  • Fig. 2 is a three-dimensional exploded view of the first bearing structure of the middle spray arm device in Fig. 1;
  • Fig. 3 is the schematic sectional view of the middle spray arm device in Fig. 1;
  • Fig. 4 is a partial enlarged view of place A in Fig. 3;
  • Fig. 5 is a schematic perspective view of the first connection structure and the second connection structure of the middle spray arm device according to another embodiment of the present application;
  • Fig. 6 is a schematic cross-sectional view of the first connection structure and the second connection structure shown in Fig. 5;
  • Fig. 7 is a side view of the middle spray arm device of another embodiment of the present application.
  • Fig. 8 is a three-dimensional exploded schematic view of the middle spray arm device shown in Fig. 7;
  • Fig. 9 is a three-dimensional exploded schematic diagram of another viewing angle of the middle spray arm device shown in Fig. 7;
  • Fig. 10 is a side view of a central spray arm device according to another embodiment of the present application.
  • Fig. 11 is a three-dimensional exploded schematic diagram of the middle spray arm device shown in Fig. 10;
  • Fig. 12 is a three-dimensional exploded schematic view of another viewing angle of the middle spray arm device shown in Fig. 10;
  • Fig. 13 is a schematic sectional view of the middle spray arm device shown in Fig. 10;
  • Fig. 14 is a partial enlarged view of place B in Fig. 13;
  • Fig. 15 is a three-dimensional exploded schematic view of the middle spray arm device according to another embodiment of the present application.
  • FIG. 16 is an exploded schematic perspective view of the middle spray arm device shown in FIG. 15 from another perspective.
  • Middle spray arm device 200 middle spray arm assembly 300 Mating components 210 middle spray arm 220 First bearing structure 222 first rolling fit 224 Second rolling fit 226 first rolling element 230 first connection structure 240 Second connection structure 232 first tubular part 234 first ring 242 second tubular part 244 second ring 212 first connecting pipe 310 Second connecting pipe 320 The third connecting pipe 234a first groove 244a second groove 228 first connection 229 second connection 200a The first middle spray arm assembly 200b Second middle spray arm assembly 210a No.1 spray arm 210b Second spray arm 214 first part 216 the second part 400 Auxiliary components 412 third tubular part 218 fourth tubular part 219 Fifth tubular part the the the first middle spray arm assembly 200b
  • the directional indication is only used to explain the relationship between the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly.
  • This application proposes a middle spray arm device.
  • the central spray arm device 10 includes a central spray arm assembly 200 and a matching assembly 300 .
  • the center spray arm assembly 200 includes a center spray arm 210 and a first bearing structure 220 , the center spray arm 210 is connected with the mating assembly 300 through the first bearing structure 220 and can rotate relative to the mating assembly 300 .
  • the first bearing structure 220 can make the frictional force of the relative rotation between the center spray arm 210 and the mating assembly 300 be rolling friction, thereby greatly reducing the friction of the center spray arm 210.
  • the frictional force of the relative rotation with the mating component 300 significantly improves the smoothness of rotation of the middle spray arm 210 , thereby increasing the rotation speed of the middle spray arm 210 .
  • increasing the rotation speed of the middle spray arm 210 can improve the cleaning effect of the dishwasher.
  • the first bearing structure 220 includes a first rolling fitting 222 , a second rolling fitting 224 and a first rolling body 226 .
  • the first rolling fitting 222 , the first rolling body 226 and the second rolling fitting 224 are arranged in sequence.
  • the first rolling fitting 222 is arranged on the middle spray arm 210
  • the second rolling fitting 224 is arranged on the fitting assembly 300
  • the first rolling fitting 222 can pass through the first rolling body 226 on the second rolling fitting 224 movement, so that the spray arm 210 can rotate relative to the mating assembly 300 .
  • first rolling fitting 222 has a first groove matching with the first rolling body 226
  • second rolling fitting 224 has a second groove fitting with the first rolling body 226 .
  • the first bearing structure 220 includes a plane thrust bearing, and the first rolling fitting 222 , the second rolling fitting 224 and the first rolling body 226 are all annular.
  • the first rolling body 226 includes rolling balls.
  • the first rolling element 226 may also include needle rollers or cylindrical rollers.
  • the central spray arm assembly 200 further includes a first connection structure 230 and a second connection structure 240 .
  • the first rolling fitting 222 is arranged on the middle spray arm 210 through the first connecting structure 230.
  • the second rolling fitting 224 is disposed on the matching component 300 through the second connection structure 240 .
  • the first connection structure 230 is connected to the second connection structure 240 . Therefore, the middle spray arm 210 and the matching assembly 300 are connected at intervals through the first connection structure 230 , the second connection structure 240 and the first bearing structure 220 . Setting the first connection structure 230 and the second connection structure 240 independent of the first rolling fitting 222 and the second rolling fitting 224 facilitates the connection between the middle spray arm 210 and the fitting assembly 300 through the first bearing structure 220 .
  • the first connection structure 230 includes a first tubular portion 232 and a first annular portion 234 , and the first annular portion 234 is sheathed on the first tubular portion 232 .
  • the first tubular portion 232 and the first annular portion 234 are integrally formed. In this way, it is very convenient to manufacture the first connection structure 230 .
  • the second connection structure 240 includes a second tubular portion 242 and a second annular portion 244 , and the second annular portion 244 is disposed in the second tubular portion 242 .
  • the second tubular portion 242 and the second annular portion 244 In this way, it is very convenient to manufacture the second connection structure 240 .
  • first bearing structure 220 is located in the second tubular portion 242 , and the second rolling fitting 224 is closer to the second annular portion 244 than the first rolling fitting 222 .
  • the first annular portion 234 is located within the second tubular portion 242 .
  • the first tubular portion 232 is inserted into the through hole of the second annular portion 244, and the first tubular portion 232 is connected to the middle spray arm 210, and the end of the second tubular portion 242 close to the first annular portion 232 is connected to the mating assembly 300 connected, so that the first bearing structure 220 is pressed between the first annular portion 234 and the second annular portion 244, that is, the first annular portion 234 is pressed on the first rolling fitting 222, and the second annular portion 244 is pressed against the second rolling fitting 224 .
  • the pressure acting on the first rolling fitting 222 by the first annular portion 234 can make the first rolling fitting 222 be arranged on the middle spray arm 210 , and act on the second rolling fitting 222 through the second annular portion 244 .
  • the pressure on the matching part 224 can make the second rolling fitting part 224 be disposed on the matching component 300 .
  • the second annular portion 244 and the first annular portion 234 are simultaneously pressed on the first bearing structure 220 , so that the second connecting structure 240 is indirectly connected to the first connecting structure 230 .
  • the connection between the second connecting structure 240 and the first connecting structure 230 can be realized without additional connecting pieces, which can simplify the structure of the middle spray arm assembly 200 .
  • first connection structure 230 and the second connection structure 240 are not limited to above structure.
  • first annular portion 234 is located at the end of the first tubular portion 232
  • second annular portion 244 is also located at the end of the second tubular portion 242 .
  • the overall height of the first connection structure 230 and the second connection structure 240 can be made smaller, saving space.
  • first annular portion 234 may also be located in the middle of the first tubular portion 232
  • the second annular portion 244 may also be located in the middle of the second tubular portion 242 .
  • the middle spray arm 210 has a first communication pipe 212 .
  • the central spray arm 210 has a central spray arm body and a first communication pipe 212 protruding from the central spray arm body. More specifically, in this embodiment, the middle spray arm body and the first communication pipe 212 are integrally formed. It can be understood that in other embodiments, the middle spray arm body and the first communication pipe 212 can be two independent components, and the middle spray arm body and the first communication pipe 212 can be fixedly connected by welding, gluing, etc. It can be detachably connected by screwing, buckle, etc.
  • the second annular portion 242 is sleeved on the outside of the first communication tube 212 .
  • the first bearing structure 220 is sleeved on the first connecting pipe 212, and the first bearing structure 220 is located in the second tubular portion 242, and the second rolling fitting 224 is closer to the second annular portion than the first rolling fitting 222 244.
  • the first tubular portion 232 is plugged into the first communicating pipe 212 , and makes the first annular portion 234 , the first bearing structure 220 , the second annular portion 244 and the center spray arm 210 closely adhere to each other in sequence.
  • first tubular portion 232 is plugged into the first communicating pipe 212, and the first annular portion 234 is pressed against the first rolling fitting 222, so that the first annular portion 234, the first bearing structure 220 , the second annular portion 244 and the middle spray arm 210 are in close contact with each other in sequence.
  • An end of the second tubular portion 242 away from the middle spray arm 210 is connected to the matching assembly 300 .
  • the above-mentioned middle spray arm assembly 200 is used in conjunction with the matching assembly 300 to form a labyrinth seal at the joint between the middle spray arm 210 and the matching assembly 300 (the first tubular part 232 and the first communication pipe 212 are inserted into the first-stage seal, the second An annular part 234 , the first bearing structure 220 , the second annular part 244 and the middle spray arm 210 are in close contact with each other in sequence to form a second-stage seal, and the end of the second tubular part 242 away from the middle spray arm 210 is connected to the mating assembly 300 as The third level of sealing) can significantly improve the sealing performance.
  • the path of water leaking through the connection between the middle spray arm 210 and the matching component 300 is tortuous, which can effectively reduce the pressure release and ensure the water pressure. At the same time, it can also reduce the dregs in the water from entering the first stage
  • the bearing structure 220 causes a risk of wear of the first bearing structure 220 . Under the same conditions (for example, the same cleaning time, the same initial water pressure), reducing the pressure release can increase the driving force for driving the rotation of the middle spray arm 210, thereby increasing the speed of the middle spray arm 210, and then improving the washing effect. The washing effect of the bowl machine. It can be understood that, in other embodiments, when the water pressure requirement is not high, the above-mentioned first communicating pipe 212 can be omitted.
  • the first tubular part 232 is plugged into the first communicating pipe 212, and makes the first annular part 234, the first bearing structure 220, the second annular part 244 and the middle spray arm 210 close to each other in order, not only can make the second
  • a rolling fitting 222 is arranged on the middle spray arm 210
  • a second rolling fitting 224 is arranged on the mating assembly 300
  • the second connection structure 240 can also be arranged on the middle spray arm 210 to realize the second connection structure 240 and the second connection structure 240.
  • An indirect connection of the connection structure 230 That is to say, in the above structure, the connection between the second connection structure 240 and the first connection structure 230 can be realized without additional connecting pieces, which can simplify the structure of the middle spray arm assembly 200 .
  • first connection structure 230 and the second connection structure 240 are not limited to above structure.
  • the first tubular portion 232 is in interference fit with the first communication tube 212 .
  • the sealing performance can be further improved, the pressure relief can be reduced, and the water pressure can be guaranteed.
  • the firmness of the connection between the first connection structure 230 and the center spray arm 210 and the firmness of the connection between the second connection structure 240 and the center spray arm 210 can be increased. It can be understood that, in other embodiments, the first tubular portion 232 and the first communication pipe 212 may also be clearance fit.
  • the end of the first communication pipe 212 away from the fitting assembly 300 has a first stepped structure.
  • the inner wall of the first tubular portion 232 has a second stepped structure matched with the first stepped structure.
  • the second stepped structure is clamped with the first stepped structure to form a sealing area 250 . Setting the first step structure and the second step structure that cooperate with each other can further improve the sealing performance, reduce pressure leakage, and ensure water pressure.
  • the fitting assembly 300 has a second communication pipe 310 .
  • the matching assembly 300 has a matching body and a second communication pipe 310 protruding from the matching body. More specifically, in this embodiment, the matching body and the second communicating pipe 310 are integrally formed. It can be understood that, in other embodiments, the matching body and the second connecting pipe 310 can be two independent components, and the matching body and the second connecting pipe 310 can be fixedly connected by welding, gluing, etc., or by screwing. , buckle and other ways of detachable connection.
  • the second tubular portion 242 is inserted into the second communication tube 310 .
  • the sealing performance can be further improved (the second tubular portion 242 and the second connecting pipe 310 are inserted into the fourth-stage seal), reducing pressure relief, ensuring water pressure, and at the same time reducing the entry of dregs in the water into the first bearing structure 220, There is a risk of wear of the first bearing structure 220 .
  • reducing the pressure relief can increase the driving force for driving the rotation of the middle spray arm 210, thereby improving the speed of the middle spray arm.
  • the speed of 210 can improve the cleaning effect of the dishwasher. It can be understood that, in other embodiments, when the water pressure requirement is not high, the above-mentioned second communication pipe 310 can be omitted.
  • the second tubular portion 242 and the second communicating pipe 310 may be interference fit or clearance fit.
  • the interference fit between the second tubular portion 242 and the second connecting pipe 310 can further improve the sealing performance, reduce pressure leakage, ensure water pressure, and increase the firmness of the connection between the second connection structure 240 and the mating component 300 . It can be understood that the clearance fit between the second tubular portion 242 and the second communication pipe 310 is more convenient for assembly.
  • the second communication pipe 310 is inserted into the second tubular portion 242 .
  • the second tubular portion 242 can also be inserted into the second communication tube 310 . That is, in this embodiment, the insertion of the second tubular portion 242 and the second communication pipe 310 includes the above two situations.
  • the first communication tube 212 is detachably connected to the first tubular portion 232 .
  • the first communication pipe 212 is connected to the first tubular portion 232 through a buckle structure.
  • the first connecting pipe 212 is provided with a first bayonet opening 212a
  • the first tubular portion 232 is provided with a first locking block 232a
  • the first tubular portion 232 is inserted into the first connecting pipe 212.
  • the first clamping block 232a is clamped in the first bayonet opening 212a, so as to realize the detachable connection between the first communication pipe 212 and the first tubular portion 232 .
  • the first bayonet opening 212 a may also be provided on the first tubular portion 232 , and the first bayonet block 232 a may be provided on the first communication pipe 212 .
  • there are multiple first bayonet openings 212a and the multiple first bayonet openings 212a are arranged at intervals and surround the first communication tube 212 for a circle.
  • the number of the first locking blocks 232a is the same as the number of the first bayonet slots 212a, and they are set one to one.
  • the second communication pipe 310 is detachably connected to the second tubular portion 242 .
  • the second communication pipe 310 is connected to the second tubular portion 242 through a buckle structure.
  • the second connecting pipe 310 is provided with a second block 310a
  • the second tubular portion 242 is provided with a second bayonet 242a. After the second tubular portion 242 is inserted into the second connecting pipe 310 , the second bayonet socket 242a is stuck in the second bayonet block 310a, so as to realize the detachable connection between the second communication pipe 310 and the second tubular portion 242 .
  • the second bayonet opening 242 a may also be provided on the second communication pipe 310 , and the second bayonet block 310 a may be provided on the second tubular portion 242 .
  • there are multiple second clamping blocks 310a and the multiple second clamping blocks 310a are arranged at intervals and surround the second communication tube 310 for a circle.
  • the number of the second bayonet openings 242a is the same as the number of the second bayonet blocks 310a, and they are set one to one.
  • the matching assembly 300 also has a third connecting pipe 320, and the third connecting pipe 320 is inserted into the first tubular portion 232, that is, in this embodiment, the first
  • the three communication pipes 320 are located on the outer periphery of the second communication pipe 310 . In this way, it is more convenient for the water in the matching assembly 300 to flow into the middle spray arm 210, which can further improve the sealing performance, reduce the pressure release, and ensure the water pressure.
  • first set the second connection structure 240 on the first communication pipe 212 that is, first set the second annular portion 244 of the second connection structure 240 on the first communication pipe 212; then the first bearing structure 220 is placed in the second connection structure 240, and sleeved on the first communication pipe 212; then the first tubular portion 232 of the first connection structure 230 is inserted into the first communication pipe 212, and is connected with the first communication pipe 212, and makes the first annular portion 234 of the first connection structure 230 press on the first bearing structure 220, and at the same time makes the second connection structure 240 fixed on the middle spray arm 210; Then, the second tubular portion 242 of the second connecting structure 240 is sheathed on the second communication pipe 310 , and at the same time, the third communication pipe 320 is inserted into the first tubular portion 232 .
  • the first rolling fitting 222 and the second rolling fitting 224 in FIGS. 1-4 can be omitted, and the first rolling body 226 is arranged on the first connection.
  • the first bearing structure 220 does not include the first rolling fitting 222 and the second rolling fitting 224 , but includes the first rolling body 226 . In this way, the height dimension of the first bearing structure can be reduced to save space, and at the same time reduce the number of parts and reduce the cost.
  • FIG. 5 and 6 the first rolling fitting 222 and the second rolling fitting 224 in FIGS. 1-4 can be omitted, and the first rolling body 226 is arranged on the first connection.
  • the first bearing structure 220 does not include the first rolling fitting 222 and the second rolling fitting 224 , but includes the first rolling body 226 . In this way, the height dimension of the first bearing structure can be reduced to save space, and at the same time reduce the number of parts and reduce the cost.
  • a first groove 234 a is defined on the first annular portion 234 , and the first groove 234 a fits with one side of the first rolling element 226 .
  • a second groove 244 a is formed on the second annular portion 244 , and the second groove 244 a matches with the other side of the first rolling element 226 .
  • the first rolling element 226 is movably disposed in the first groove 234a and the second groove 244a.
  • the first connection structure 230 and the second connection structure 240 shown in FIGS. 5 and 6 , and the first rolling element 226 in FIGS. 1-4 constitute a new first bearing structure 220 .
  • the first bearing structure 220 includes a first rolling fitting 222 , a second rolling fitting 224 , a first rolling body 226 , a first connecting portion 228 and a second connecting portion 229 .
  • the first connecting portion 228 is connected with the first rolling fitting 222 .
  • the second connecting portion 229 is connected with the second rolling fitting 224 .
  • the first connecting portion 228 is connected to the middle spray arm 210 .
  • the second connecting portion 229 is connected with the mating component 300 .
  • the first connection part 228 is connected to the second connection part 229 .
  • the first rolling fitting 222 is provided with a first groove 234 a matching with one side of the first rolling body 226 .
  • a second groove 244 a matching with the other side of the first rolling element 226 is defined on the second rolling fitting 224 .
  • the first rolling element 226 is movably disposed in the first groove 234a and the second groove 244a.
  • the structure of the first connecting portion 228 in FIGS. 5 and 6 is the same as that of the first tubular portion 232 in FIGS. 1-4 ; the first rolling fitting 222 in FIGS. 5 and 6
  • the structure of the structure is basically the same as that of the first annular part 234 in FIGS. -
  • the first annular portion 234 in FIG. 4 may not be provided with the first groove 234a.
  • the first connecting portion 228 is integrally formed with the first rolling fitting 222 . In this way, it is convenient to manufacture the first rolling fitting 222a.
  • the structure of the second connecting portion 229 in FIGS. 5 and 6 is the same as that of the second tubular portion 242 in FIGS.
  • the structure of the second rolling fitting 224 in FIGS. 5 and 6 is the same as that in FIGS.
  • the structure of the second annular portion 244 in FIG. 4 is basically the same, the difference is that the second rolling fitting 224 in FIG. 5 and FIG.
  • the second annular portion 244 may not define the second groove 244a.
  • the second connecting portion 229 is integrally formed with the second rolling fitting 224 . In this way, it is convenient to manufacture the first rolling fitting 222a.
  • the first tubular portion 232 is inserted into the through hole of the second annular portion 244 .
  • the first annular portion 234 is located in the second tubular portion 242 and pressed against one side of the first rolling element 226 .
  • One end of the second tubular portion 242 close to the first annular portion 232 is connected to the mating component, and the second annular portion 244 is pressed against the other side of the first rolling element 226 .
  • the matching assembly 300 includes a water pipe 300a.
  • the second communication pipe 310 is an end of the water pipe 300a, and the third communication pipe 320 is disposed on the water pipe 300a and sleeved outside the second communication pipe 310 .
  • middle spray arm assemblies 200 there are two middle spray arm assemblies 200 , namely a first middle spray arm assembly 200 a and a second middle spray arm assembly 200 b .
  • the middle spray arm 210 of the first middle spray arm assembly 200a is the first middle spray arm 210a.
  • the first middle spray arm 210 a communicates with the matching assembly 300 through the first bearing structure 220 of the first middle spray arm assembly 200 a and can rotate relative to the matching assembly 300 .
  • the middle spray arm 210 of the second middle spray arm assembly 200b is the second middle spray arm 210b, and the second middle spray arm 210b communicates with the first middle spray arm 210a through the first bearing structure 220 of the second middle spray arm assembly 200b, and It can rotate relative to the first middle spray arm 210a. That is, in this embodiment, the first middle spray arm assembly 200a is connected with the mating assembly 300 and the second middle spray arm assembly 200b.
  • the first middle spray arm 210a can be regarded as the matching assembly 300 of the second middle spray arm assembly 200b.
  • the matching assembly 300 may also include a middle spray arm (ie, the first middle spray arm 210a).
  • the first middle spray arm 210a has the above-mentioned second communication pipe 310 and the above-mentioned third communication pipe 320, and the above-mentioned second communication pipe 310 is arranged on the first middle spray arm 210a and communicates with the first middle spray arm 210a,
  • the above-mentioned third communication pipe 320 is disposed on the first middle spray arm 210 a and sleeved outside the second communication pipe 310 .
  • the center spray arm device 10 includes the first center spray arm 210a and the second center spray arm 210b, that is, the center spray arm device 10 includes at least two center spray arms.
  • the middle spray arm device 10 is a double middle spray arm device or a multiple middle spray arm device. In the double spray arm device or multi-spray arm device, the water flow can wash the tableware from different angles to improve the cleaning effect.
  • the double spray arm device and the multi spray arm device have at least two connection points (the connection point between the first middle spray arm 210a and the matching assembly 300, and the first middle spray arm 210a and the second middle spray arm 210a).
  • the connection point between the second spray arm 210b) is more prone to leakage and pressure relief, and it is more difficult to ensure the water pressure, which leads to the limited application of the double spray arm device and the multi spray arm device, and the scope of application is limited.
  • the middle spray arm device of the dishwasher usually chooses a single spray arm device instead of a double spray arm device and a multi spray arm device.
  • the position of the middle spray arm device is higher than that of the low spray arm device, and the water pressure of the middle spray arm device itself is higher than that of the low spray arm device.
  • the water pressure is low. If a double spray arm device or a multi-spray arm device is used as the middle spray arm device, the problem of low water pressure will be more likely to occur, which will lead to poor rotation speed of the spray arm of the middle spray arm device, which is not conducive to improving the dishwasher. Wash effect.
  • the sealing performance is significantly improved, and the water leaks through the junction of the middle spray arm 210 and the mating assembly 300.
  • the twists and turns can effectively reduce pressure relief and ensure water pressure.
  • the double middle spray arm device and the multiple middle spray arm device can be used as the middle spray arm device of the dishwasher.
  • the matching assembly 300 is located on one side of the first middle spray arm assembly 200a, and the second middle spray arm assembly 200b is located on the other side of the first middle spray arm assembly 200a.
  • the connection point between the first middle spray arm assembly 200a and the mating assembly 300 is a reference point, and the connection point between the first middle spray arm assembly 200a and the second middle spray arm assembly 200b is set corresponding to the reference point.
  • the connection point and the reference point of the first middle spray arm assembly 200a and the second middle spray arm assembly 200b are arranged facing each other in the vertical direction. In this way, the water in the mating assembly 300 can more easily enter the second middle spray arm assembly 200b, so that the second middle spray arm assembly 200b has a higher water pressure.
  • the reference point is located in the middle of the first middle spray arm assembly 200a. In this way, it is convenient to make the water pressure at both ends of the first middle spray arm assembly 200a relatively uniform.
  • the lengths of the first middle spray arm assembly 200a and the second middle spray arm assembly 200b are approximately the same. In this way, it is convenient to make the water pressure at both ends of the second middle spray arm assembly 200b relatively uniform.
  • the first middle spray arm 210a includes a first portion 214 and a second portion 216 located in the length direction, taking the connection point between the first middle spray arm assembly 200a and the mating assembly 300 as a boundary.
  • the first part 214 is provided with at least one second middle spray arm assembly 200b; and/or, the second part 216 is provided with at least one second middle spray arm assembly 200b. That is, in this embodiment, there may be one or more second middle spray arm assemblies 200b (greater than or equal to two).
  • the first middle spray arm 210a can be regarded as the main middle spray arm
  • the second middle spray arm 210b can be regarded as the auxiliary middle spray arm.
  • the second middle spray arm 210b can also be regarded as a satellite of the first middle spray arm 210a, and at this time, the middle spray arm device 10 is a satellite middle spray arm device.
  • both the first middle spray arm 210a and the second middle spray arm 210b rotate, and the rotation direction of at least one second middle spray arm 210b is the same as that of the first middle spray arm 210a.
  • the direction of rotation is different. In this way, the water flow can wash the tableware from different angles to improve the cleaning effect.
  • there are multiple second middle spray arms 210b and the rotation direction of the multiple second middle spray arms 210b is the same as that of the first middle spray arm 210a.
  • the central spray arm device 10 includes a central spray arm assembly 200 , a matching assembly 300 and an auxiliary assembly 400 .
  • the middle spray arm 210 of the middle spray arm assembly 200 is the first middle spray arm 210a.
  • the auxiliary assembly 400 includes a second middle spray arm 410 and a second bearing structure 420 .
  • the second middle spray arm 410 is connected with the first middle spray arm 210a through the second bearing structure 420, and can rotate relative to the first middle spray arm 210a.
  • the structure of the second bearing structure 420 and the structure of the first bearing structure 220 may be the same or different.
  • the middle spray arm assembly 200 connects the mating assembly 300 and the auxiliary assembly 400, and the gravity at the connection point between the middle spray arm assembly 200 and the mating assembly 300 is greater than the gravity at the connection point between the middle spray arm assembly 200 and the auxiliary assembly 400 , so due to gravity, the connection stability between the first middle spray arm 210a and the mating assembly 300 is poorer than the connection stability between the second middle spray arm 410 and the first middle spray arm 210a.
  • the structure of the second bearing structure 420 is different from that of the first bearing structure 220 .
  • the first bearing structure 220 is a plane thrust bearing, and the plane thrust bearing is used to connect the first middle spray arm 210a and the matching assembly 300, which is more conducive to reducing the probability of the first middle spray arm 210a falling off.
  • the second bearing structure 420 is a deep groove ball bearing, which is used to connect the second middle spray arm 410 and the first middle spray arm 210a, which is more conducive to reducing the cost of the middle spray arm device 10 .
  • the second middle spray arm 410 is located on a side of the first middle spray arm 210 a close to the mating assembly 300 . That is, the second middle spray arm 410 is located above the first middle spray arm 210a, so that the first middle spray arm 210a can support the second middle spray arm 410, reducing the probability of the second middle spray arm 410 falling off .
  • the second bearing structure 420 includes an inner ring 422 , an outer ring 424 and a second rolling element 426 .
  • the inner ring 422 can rotate relative to the outer ring 424 through the second rolling elements 426 .
  • the inner ring 422 is disposed on one of the first middle spray arm 210 a and the second middle spray arm 410
  • the outer ring 424 is disposed on the other of the first middle spray arm 210 a and the second middle spray arm 410 .
  • the inner ring 422 is arranged on the second middle spray arm 410
  • the outer ring 424 is arranged on the first middle spray arm 210a.
  • the second middle spray arm 410 has a third tubular portion 412 .
  • the first middle spray arm 210 a has a fourth tubular portion 218 .
  • the inner ring 422 is sleeved on the third tubular portion 412 .
  • the fourth tubular portion 218 is sheathed on the outer ring 424 .
  • the path of leakage at the connection is tortuous, which can effectively reduce pressure relief and ensure water pressure.
  • the first middle spray arm 210a also has a fifth tubular portion 219 .
  • the fifth tubular portion 219 is inserted into the third tubular portion 412 . In this way, the sealing performance of the joint between the second middle spray arm 410 and the first middle spray arm 210a can be further improved.
  • the first middle spray arm 210a includes a first part 214 and a second part located in the length direction 216.
  • the first portion 214 is provided with at least one auxiliary component 400 ; and/or the second portion 216 is provided with at least one auxiliary component 400 .
  • the first middle spray arm 210a can be regarded as the main middle spray arm
  • the second middle spray arm 410 can be regarded as the auxiliary middle spray arm.
  • the second middle spray arm 410 can also be regarded as a satellite of the first middle spray arm 210a, and at this time, the middle spray arm device 10 is a satellite middle spray arm device.
  • the second part 216 is provided corresponding to the matching component 300 .
  • there is one auxiliary component 400 which is provided on the first part 214 .
  • there are two auxiliary components 400 one auxiliary component 400 is disposed on the first part 214 , and the other auxiliary component 400 is disposed on the second part 216 .
  • both the first middle spray arm 210a and the second middle spray arm 410 rotate, and the rotation direction of at least one second middle spray arm 410 is the same as that of the first middle spray arm 410
  • the direction of rotation of 210a is different. In this way, the water flow can wash the tableware from different angles to improve the cleaning effect.
  • there are multiple second middle spray arms 410 and the rotation direction of the multiple second middle spray arms 410 is the same as that of the first middle spray arm 210 a.
  • the present application also proposes a dishwasher, which includes a central spray arm device 10.
  • a dishwasher which includes a central spray arm device 10.
  • the central spray arm device 10 For the specific structure of the central spray arm device 10, refer to the above-mentioned embodiments, because this dishwasher adopts all the technical solutions of all the above-mentioned embodiments. , so at least it has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

一种中喷臂组件(200)，用于与洗碗机的配合组件(300)配合使用，包括：中喷臂(210)；以及第一轴承结构(220)，包括在配合组件(300)与中喷臂(210)的排布方向上依次排布的第一滚动配合件(222)、第一滚动体(226)和第二滚动配合件(224)，第一滚动配合件(222)设于所述中喷臂(210)上，第二滚动配合件(224)用于连接配合组件(300)，第一滚动配合件(222)能通过第一滚动体(226)在第二滚动配合件(224)运动，以使得中喷臂(210)能相对于配合组件(300)旋转。

Description

中喷臂组件、中喷臂装置和洗碗机
相关申请的交叉引用
本申请要求申请日为2021年6月24日、申请号为202110716258.1、专利申请名称为“中喷臂组件、中喷臂装置和洗碗机”的优先权，以及申请日为2021年6月24日、申请号为202121434527.7、专利申请名称为“中喷臂组件、中喷臂装置和洗碗机”的优先权。
技术领域
本申请涉及洗碗机技术领域，特别涉及一种中喷臂组件、中喷臂装置和洗碗机。
背景技术
随着物质生活水平的提高，能够解放双手的洗碗机正逐步成为品质生活的标配。与传统手洗相比，洗碗机具有洗涤洁净、杀菌、省水省力等优势。家用洗碗机一般采用喷淋式洗涤方式，在洗涤泵的驱动下，水流进入喷臂后通过喷臂上的喷淋孔喷出，并带动喷臂旋转，通过旋转的喷臂喷淋，冲刷餐具表面，以将餐具表面的污渍去除。其中，喷臂的结构与洗碗机的洗净效果密切相关，一直是洗碗机领域的研究重点。
发明内容
本申请的主要目的是提出一种中喷臂组件，旨在提升洗碗机的洗净效果。
为实现上述目的，本申请提出的中喷臂组件，用于与洗碗机的配合组件配合使用，包括：
中喷臂；以及
第一轴承结构，包括在配合组件与所述中喷臂的排布方向上依次排布的第一滚动配合件、第一滚动体和第二滚动配合件，所述第一滚动配合件设于所述中喷臂上，所述第二滚动配合件用于连接配合组件，所述第一滚动配合件能通过所述第一滚动体在所述第二滚动配合件运动，以使得所述中喷臂能相对于配合组件旋转。
在一实施例中，还包括连接所述第一滚动配合件与所述中喷臂的第一连接结构和连接所述第二滚动配合件和配合组件的第二连接结构，所述第二连接结构与所述第一连接结构连接。
在一实施例中，所述第一连接结构包括第一管状部和套设于所述第一管状部上的第一环状部；所述第二连接结构包括第二管状部和设于所述第二管状部内的第二环状部；
所述第一轴承结构和所述第一环状部均位于所述第二管状部内，所述第一滚动配合件相对于所述第二滚动配合件更靠近所述第一环状部，所述第一管状部插接于所述第二环状部的通孔内，并与所述中喷臂连接，所述第二管状部靠近所述第一环状部的一端与所述配合组件连接，以使得所述第一环状部压于所述第一滚动配合件上，所述第二环状部压于所述第二滚动配合件上。
在一实施例中，所述第一轴承结构还包括第一连接部和第二连接部，在配合组件与所述中喷臂的排布方向上，所述第一连接部与所述第一滚动配合件连接，所述第二连接部与所述第二滚动配合件连接；
所述第一连接部与所述中喷臂连接，所述第二连接部连接与所述第一连接部与配合组件。
在一实施例中，所述第一连接部为第一管状部，所述第一滚动配合件为第一环状部，并套设于所述第一管状部上；
所述第二连接部为第二管状部，所述第二滚动配合件为第二环状部，并设于所述第二管状部内；
所述第一管状部插接于所述第二环状部的通孔内，所述第一环状部位于所述第二管状部内，并压于所述第一滚动体的一侧上，所述第二管状部靠近所述第一环状部的一端与所述配合组件连接，所述第二环状部压于所述第一滚动体的另一侧上。
在一实施例中，所述中喷臂具有第一连通管，所述第二环状部和所述第一轴承结构套设于所述第一连通管外，插接于所述第一连通管内的所述第一管状部，使得所述第一环状部、所述第一轴承结构、所述第二环状部和所述中喷臂依次紧贴。
在一实施例中，所述配合组件具有第二连通管和/或第三连通管，所述第二管状部与所述第二连通管插接，所述第三连通管插接于所述第一管状部内。
在一实施例中，所述第一连通管远离所述配合组件的一端具有第一台阶结构，所述第一管状部的内壁具有第二台阶结构，所述第二台阶结构与所述第一台阶结构卡接。
本申请还提出一种中喷臂装置，包括：
上述的中喷臂组件以及所述的配合组件。
在一实施例中，所述中喷臂组件为两个，分别为第一中喷臂组件和第二中喷臂组件，所述第一中喷臂组件的中喷臂连接所述配合组件与所述第二中喷臂组件的中喷臂；
当以所述第一中喷臂组件的中喷臂和所述第二中喷臂组件为参考时，所述第一中喷臂组件的中喷臂为所述第二中喷臂组件的配合组件。
在一实施例中，还包括辅助组件，所述中喷臂组件的中喷臂为第一中喷臂，所述辅助组件包括第二中喷臂和第二轴承结构，所述第二轴承结构连接所述第一中喷臂与所述第二 中喷臂，并使得所述第二中喷臂能相对于所述第一中喷臂旋转。
在一实施例中，以配合组件与所述第一中喷臂的连接处为分界，所述第一中喷臂包括位于长度方向上的第一部分和第二部分；
所述第一部分和/或所述第二部分至少设置有一个所述辅助组件。
本申请还提出一种洗碗机，包括上述的中喷臂装置。
中喷臂通过第一轴承结构与配合组件连接，并能相对于配合组件旋转。在中喷臂相对于配合组件旋转的过程中，第一轴承结构可以使得中喷臂与配合组件之间的相对旋转的摩擦力为滚动摩擦，从而可以大大降低中喷臂与配合组件之间的相对旋转的摩擦力，显著提升中喷臂的转动顺畅度，进而提高中喷臂的转速。在相同的条件下(例如，相同的清洗时间内，相同的初始水压，也即相同的初始驱动力)，提高中喷臂的转速，可以提升洗碗机的洗净效果。此外，上述中喷臂组件工作时，朝上喷出的水，会产生朝下的反作用力于中喷臂上，再加上中喷臂本身的重力朝下，使得中喷臂容易脱落。通过第一轴承结构来连接中喷臂与配合组件，可承受轴向力，从而可以降低中喷臂脱落的概率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请一实施例的中喷臂装置的立体结构示意图；
图2为图1中的中喷臂装置的第一轴承结构的立体分解图；
图3为图1中的中喷臂装置的剖面示意图；
图4为图3中A处的局部放大图；
图5为本申请另一实施例的中喷臂装置的第一连接结构和第二连接结构的立体结构示意图；
图6为图5所示的第一连接结构和第二连接结构的剖面示意图；
图7为本申请另一实施例的中喷臂装置的侧视图；
图8为图7所示的中喷臂装置的立体分解示意图；
图9为图7所示的中喷臂装置的另一视角的立体分解示意图；
图10为本申请另一实施例的中喷臂装置的侧视图；
图11为图10所示的中喷臂装置的立体分解示意图；
图12为图10所示的中喷臂装置的另一视角的立体分解示意图；
图13为图10所示的中喷臂装置的剖面示意图；
图14为图13中B处的局部放大图；
图15为本申请另一实施例的中喷臂装置的立体分解示意图；
图16为图15所示的中喷臂装置的另一视角的立体分解示意图。
附图标号说明：
标号 名称 标号 名称
10 中喷臂装置 200 中喷臂组件
300 配合组件 210 中喷臂
220 第一轴承结构 222 第一滚动配合件
224 第二滚动配合件 226 第一滚动体
230 第一连接结构 240 第二连接结构
232 第一管状部 234 第一环状部
242 第二管状部 244 第二环状部
212 第一连通管 310 第二连通管
320 第三连通管 234a 第一凹槽
244a 第二凹槽 228 第一连接部
229 第二连接部 200a 第一中喷臂组件
200b 第二中喷臂组件 210a 第一中喷臂
210b 第二中喷臂 214 第一部分
216 第二部分 400 辅助组件
412 第三管状部 218 第四管状部
219 第五管状部    
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等， 如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其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至少一个该特征。另外，若全文中出现的“和/或”的含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种中喷臂装置。
在本申请实施例中，如图1所示，该中喷臂装置10包括中喷臂组件200和配合组件300。中喷臂组件200包括中喷臂210和第一轴承结构220，中喷臂210通过第一轴承结构220与配合组件300连接，并能相对于配合组件300旋转。在中喷臂210相对于配合组件300旋转的过程中，第一轴承结构220可以使得中喷臂210与配合组件300之间的相对旋转的摩擦力为滚动摩擦，从而可以大大降低中喷臂210与配合组件300之间的相对旋转的摩擦力，显著提升中喷臂210的转动顺畅度，进而提高中喷臂210的转速。在相同的条件下(例如，相同的清洗时间内，相同的初始水压，也即相同的初始驱动力)，提高中喷臂210的转速，可以提升洗碗机的洗净效果。
在本实施例中，如图1-图4所示，第一轴承结构220包括第一滚动配合件222、第二滚动配合件224和第一滚动体226。在配合组件300与中喷臂210的排布方向上，也即在上下方向上，第一滚动配合件222、第一滚动体226和第二滚动配合件224依次排布。其中，第一滚动配合件222设于中喷臂210上，第二滚动配合件224设于配合组件300上，第一滚动配合件222能通过第一滚动体226在第二滚动配合件224上运动，从而中喷臂210能相对于配合组件300旋转。需要说明的是，第一滚动配合件222开设有与第一滚动体226配合的第一凹槽，第二滚动配合件224开设有与第一滚动体226配合的第二凹槽。上述中喷臂装置10工作时，朝上喷出的水，会产生朝下的反作用力于中喷臂210上，再加上中喷臂210本身的重力朝下，使得中喷臂210容易脱落。通过第一轴承结构220来连接中喷臂210与配合组件300，可承受轴向力，从而可以降低中喷臂210脱落的概率。
在本实施例中，第一轴承结构220包括平面推力轴承，第一滚动配合件222、第二滚动配合件224和第一滚动体226均呈环状。在本实施例中，第一滚动体226包括滚球。在其他实施例中，第一滚动体226也可以包括滚针或圆柱滚子。
在本实施例中，中喷臂组件200还包括第一连接结构230和第二连接结构240。第一滚 动配合件222通过第一连接结构230设于中喷臂210上。第二滚动配合件224通过第二连接结构240设于配合组件300上。第一连接结构230和第二连接结构240连接。从而中喷臂210和配合组件300通过第一连接结构230、第二连接结构240和第一轴承结构220间隔连接。设置独立于第一滚动配合件222和第二滚动配合件224的第一连接结构230和第二连接结构240，非常便于通过中喷臂210和配合组件300通过第一轴承结构220连接。
在本实施例中，第一连接结构230包括第一管状部232和第一环状部234，第一环状部234套设于第一管状部232上。具体地，在本实施例中，第一管状部232和第一环状部234一体成型。如此，非常便于制作第一连接结构230。第二连接结构240包括第二管状部242和第二环状部244，第二环状部244设于第二管状部242内。具体地，在本实施例中，第二管状部242和第二环状部244。如此，非常便于制作第二连接结构240。
在本实施例中，第一轴承结构220位于第二管状部242内，且第二滚动配合件224相对于第一滚动配合件222更靠近第二环状部244。第一环状部234位于第二管状部242内。第一管状部232插接于第二环状部244的通孔内，且第一管状部232与中喷臂210连接，第二管状部242靠近第一环状部232的一端与配合组件300连接，从而使得第一轴承结构220压于第一环状部234和第二环状部244之间，也即第一环状部234压于第一滚动配合件222上，第二环状部244压于第二滚动配合件224上。如此，通过第一环状部234作用于第一滚动配合件222上的压力，可以使得第一滚动配合件222设于中喷臂210上，而通过第二环状部244作用于第二滚动配合件224上的压力，可以使得第二滚动配合件224设于配合组件300上。同时第二环状部244和第一环状部234同时压于第一轴承结构220上，可以使得第二连接结构240与第一连接结构230间接连接。在上述结构中，不需要设置的额外的连接件，即可实现第二连接结构240与第一连接结构230的连接，可以简化中喷臂组件200的结构。可以理解，在其他实施例中，也可以设置额外的连接件来实现第二连接结构240与第一连接结构230的连接，此时，第一连接结构230和第二连接结构240的结构不限于上述结构。
在本实施例中，第一环状部234位于第一管状部232的端部，第二环状部244也位于第二管状部242的端部。如此，可以使得第一连接结构230和第二连接结构240构成的整体的高度较小，节省空间。可以理解，在其他实施例中，第一环状部234也可以位于第一管状部232的中部，第二环状部244也位于第二管状部242的中部。
在本实施例中，中喷臂210具有第一连通管212。具体地，在本实施例中，中喷臂210具有中喷臂本体及凸设于中喷臂本体上的第一连通管212。更具体地，在本实施例中，中喷臂本体与第一连通管212一体成型。可以理解，在其他实施例中，中喷臂本体与第一连通管212可以为相互独立的两个元件，中喷臂本体与第一连通管212可以采用焊接、胶粘 等方式固定连接，也可以采用打螺钉、卡扣等方式可拆卸连接。
在本实施例中，第二环状部242套设于第一连通管212外。第一轴承结构220套设于第一连通管212上，且第一轴承结构220位于第二管状部242内，第二滚动配合件224相对于第一滚动配合件222更靠近第二环状部244。第一管状部232插接于第一连通管212内，并使得第一环状部234、第一轴承结构220、第二环状部244和中喷臂210依次紧贴。也即第一管状部232插接于第一连通管212内，并使得第一环状部234压于第一滚动配合件222上，从而可以使得第一环状部234、第一轴承结构220、第二环状部244和中喷臂210依次紧贴。第二管状部242远离中喷臂210的一端与配合组件300连接。
上述中喷臂组件200与配合组件300配合使用，可以在中喷臂210与配合组件300的连接处形成迷宫密封(第一管状部232与第一连通管212插接为第一级密封，第一环状部234、第一轴承结构220、第二环状部244和中喷臂210依次紧贴为第二级密封，第二管状部242远离中喷臂210的一端与配合组件300连接为第三级密封)，可显著提升密封性能，水经中喷臂210与配合组件300的连接处泄露的路径曲折，可以有效减少泄压，保证水压，同时还可以降低水中的渣滓进入第一轴承结构220、造成第一轴承结构220磨损的风险。在相同的条件下(例如，相同的清洗时间，相同的初始水压)，减少泄压，可以提高驱动中喷臂210旋转的驱动力，从而可以提高中喷臂210的转速，进而可以提升洗碗机的洗净效果。可以理解，在其他实施例中，当对水压要求不高时，上述第一连通管212可以省略。
而且第一管状部232插接于第一连通管212内，并使得第一环状部234、第一轴承结构220、第二环状部244和中喷臂210依次紧贴，不仅可以使得第一滚动配合件222设于中喷臂210上，第二滚动配合件224设于配合组件300上，还可以使得第二连接结构240设于中喷臂210上，实现第二连接结构240与第一连接结构230的间接连接。也即在上述结构中，不需要设置的额外的连接件，即可实现第二连接结构240与第一连接结构230的连接，可以简化中喷臂组件200的结构。可以理解，在其他实施例中，也可以设置额外的连接件来实现第二连接结构240与第一连接结构230的连接，此时，第一连接结构230和第二连接结构240的结构不限于上述结构。
在本实施例中，第一管状部232与第一连通管212过盈配合。如此，可以进一步提升密封性能，减少泄压，保证水压。而且可以增加第一连接结构230与中喷臂210之间的连接牢固性，以及第二连接结构240与中喷臂210之间的连接牢固性。可以理解，在其他实施例中，第一管状部232与第一连通管212也可以间隙配合。
在本实施例中，第一连通管212远离配合组件300的一端具有第一台阶结构。第一管状部232的内壁具有与第一台阶结构配合的第二台阶结构。第二台阶结构与第一台阶结构卡接，形成密封区域250。设置相互配合的第一台阶结构与第二台阶结构可以进一步提升 密封性能，减少泄压，保证水压。
在本实施例中，配合组件300具有第二连通管310。具体地，在本实施例中，配合组件300具有配合本体及凸设于配合本体上的第二连通管310。更具体地，在本实施例中，配合本体与第二连通管310一体成型。可以理解，在其他实施例中，配合本体与第二连通管310可以为相互独立的两个元件，配合本体与第二连通管310可以采用焊接、胶粘等方式固定连接，也可以采用打螺钉、卡扣等方式可拆卸连接。
在本实施例中，第二管状部242与第二连通管310插接。如此，可以进一步提升密封性能(第二管状部242与第二连通管310插接为第四级密封)，减少泄压，保证水压，同时还可以降低水中的渣滓进入第一轴承结构220、造成第一轴承结构220磨损的风险。在相同的条件下(例如，相同的清洗时间，相同的初始水压，也即相同的初始驱动力)，减少泄压，可以提高驱动中喷臂210旋转的驱动力，从而可以提高中喷臂210的转速，进而可以提升洗碗机的洗净效果。可以理解，在其他实施例中，当对水压要求不高时，上述第二连通管310可以省略。
在本实施例中，第二管状部242与第二连通管310可以过盈配合，也可以间隙配合。第二管状部242与第二连通管310过盈配合，可以进一步提升密封性能，减少泄压，保证水压，而且可以增加第二连接结构240与配合组件300之间的连接牢固性。可以理解，而第二管状部242与第二连通管310间隙配合，更便于组装。
在本实施例中，第二连通管310插接于第二管状部242内。如此，水在自内向外的方向上泄露时，阻力更大，更不容易泄露。在其他实施例中，第二管状部242也可以插接于第二连通管310内。也即在本实施例中，第二管状部242与第二连通管310插接包括上述两种情况。
在本实施例中，第一连通管212与第一管状部232可拆卸连接。具体地，在本实施例中，如图1所示，第一连通管212与第一管状部232通过卡扣结构连接。更具体地，在本实施例中，第一连通管212上开设有第一卡口212a，第一管状部232上设置有第一卡块232a，第一管状部232插入第一连通管212后，第一卡块232a卡于第一卡口212a内，从而实现第一连通管212与第一管状部232可拆卸连接。可以理解，在其他实施例中，也可以在第一管状部232上开设第一卡口212a，而在第一连通管212上设置第一卡块232a。在本实施例中，第一卡口212a为多个，多个第一卡口212a间隔排布，并环绕第一连通管212一周。第一卡块232a的数目与第一卡口212a的数目相同，并一对一设置。
在本实施例中，第二连通管310与第二管状部242可拆卸连接。具体地，如图1所示，在本实施例中，第二连通管310与第二管状部242通过卡扣结构连接。更具体地，在本实施例中，第二连通管310上开设有第二卡块310a，第二管状部242上设置有第二卡口242a， 第二管状部242插入第二连通管310后，第二卡口242a卡于第二卡块310a内，从而实现第二连通管310与第二管状部242可拆卸连接。可以理解，在其他实施例中，也可以在第二连通管310上开设第二卡口242a，而在第二管状部242上设置第二卡块310a。在本实施例中，第二卡块310a为多个，多个第二卡块310a间隔排布，并环绕第二连通管310一周。第二卡口242a的数目与第二卡块310a的数目相同，并一对一设置。
在本实施例中，如图1-图4所示，配合组件300还具有第三连通管320，第三连通管320插接于第一管状部232内，也即在本实施例中，第三连通管320位于第二连通管310外周。如此，更便于配合组件300内的水流入中喷臂210内，可以进一步提升密封性能，减少泄压，保证水压。
在组装上述中喷臂装置10时，先将第二连接结构240套设于第一连通管212上，也即先将第二连接结构240的第二环状部244套设于第一连通管212上；然后将第一轴承结构220放置于第二连接结构240内，并套设于第一连通管212上；接着将第一连接结构230的第一管状部232插接于第一连通管212内，并与第一连通管212连接，并使得第一连接结构230的第一环状部234压于第一轴承结构220上，同时使得第二连接结构240固定于中喷臂210上；然后使得第二连接结构240的第二管状部242套设于第二连通管310上，同时使得第三连通管320插接于第一管状部232内。
在一些实施例中，如图5和图6所示，可以省略图1-图4中的第一滚动配合件222和第二滚动配合件224，并将第一滚动体226设于第一连接结构230和第二连接结构240之间，此时可以认为第一轴承结构220不包括第一滚动配合件222和第二滚动配合件224，而包括第一滚动体226。如此可减小第一轴承结构的高度尺寸，节省空间，同时减少零件数量，降低成本。在图6所示实施例中，第一环状部234上开设有第一凹槽234a，第一凹槽234a与第一滚动体226的一侧配合。第二环状部244上开设有第二凹槽244a，第二凹槽244a与第一滚动体226的另一侧配合。第一滚动体226活动设于第一凹槽234a和第二凹槽244a内。
在一些实施例中，可以认为图5和图6所示的第一连接结构230和第二连接结构240，以及图1-图4中的第一滚动体226构成了新的第一轴承结构220。具体地，第一轴承结构220包括第一滚动配合件222、第二滚动配合件224、第一滚动体226、第一连接部228和第二连接部229。在配合组件300与中喷臂210的排布方向上，第一连接部228与第一滚动配合件222连接。在配合组件300与中喷臂210的排布方向上，第二连接部229与第二滚动配合件224连接。第一连接部228与中喷臂210连接。第二连接部229与配合组件300连接。第一连接部228与第二连接部229连接。其中，第一滚动配合件222上开设有与第一滚动体226的一侧配合的第一凹槽234a。第二滚动配合件224上开设有与第一滚动体226 的另一侧配合的第二凹槽244a。第一滚动体226活动设于第一凹槽234a和第二凹槽244a内。
在本实施例中，图5和图6中的第一连接部228的结构与图1-图4中的第一管状部232的结构相同；图5和图6中的第一滚动配合件222的结构与图1-图4中的第一环状部234的结构基本相同，不同之处在于，图5和图6中的第一滚动配合件222开设有第一凹槽234a，而图1-图4中的第一环状部234可以不开设有第一凹槽234a。具体地，在本实施例中，第一连接部228与第一滚动配合件222一体成型。如此，便于制作第一滚动配合件222a。图5和图6中的第二连接部229的结构与图1-图4中的第二管状部242的结构相同；图5和图6中的第二滚动配合件224的结构与图1-图4中的第二环状部244的结构基本相同，不同之处在于，图5和图6中的第二滚动配合件224开设有第二凹槽244a，而图1-图4中的第二环状部244可以不开设有第二凹槽244a。具体地，在本实施例中，第二连接部229与第二滚动配合件224一体成型。如此，便于制作第一滚动配合件222a。
在图5和图6所示实施例中，第一管状部232插接于第二环状部244的通孔内。第一环状部234位于第二管状部242内，并压于第一滚动体226的一侧上。第二管状部242靠近第一环状部232的一端与配合组件连接，第二环状部244压于第一滚动体226的另一侧上。
在本实施例中，如图1-图4所示，配合组件300包括水管300a。第二连通管310为水管300a的端部，而第三连通管320设于水管300a上，并套设于第二连通管310外。
在一实施例中，如图7-图9所示，中喷臂组件200为两个，分别为第一中喷臂组件200a和第二中喷臂组件200b。第一中喷臂组件200a的中喷臂210为第一中喷臂210a。第一中喷臂210a通过第一中喷臂组件200a的第一轴承结构220与配合组件300连通，并能相对于配合组件300旋转。第二中喷臂组件200b的中喷臂210为第二中喷臂210b，第二中喷臂210b通过第二中喷臂组件200b的第一轴承结构220与第一中喷臂210a连通，并能相对于第一中喷臂210a旋转。也即在本实施例中，第一中喷臂组件200a连接配合组件300和第二中喷臂组件200b。
当以第一中喷臂210a和第二中喷臂组件200b为参考时，可以将第一中喷臂210a看作是第二中喷臂组件200b的配合组件300，此时可以认为，在一些实施例中，配合组件300也可以包括中喷臂(也即第一中喷臂210a)。此时，第一中喷臂210a具有上述第二连通管310和上述第三连通管320，上述第二连通管310设于第一中喷臂210a上，并与第一中喷臂210a连通，而上述第三连通管320设于第一中喷臂210a上，并套设于第二连通管310外。
在上述结构中，中喷臂装置10包括第一中喷臂210a和第二中喷臂210b，也即中喷臂 装置10包括至少两个中喷臂。此时，中喷臂装置10为双中喷臂装置或多中喷臂装置。在双中喷臂装置或多中喷臂装置中，水流可以从不同角度冲刷餐具，提升洗净效果。
但双喷臂装置和多喷臂装置相对于单喷臂装置，因存在至少两个连接点(第一中喷臂210a和配合组件300之间的连接点，以及第一中喷臂210a和第二中喷臂210b之间的连接点)，更容易发生泄漏，出现泄压的情况，更难保证水压，导致双喷臂装置和多喷臂装置的应用受限，应用范围有限。例如，在实际应用中，洗碗机的中喷臂装置通常选用单喷臂装置，而不双喷臂装置和多喷臂装置。因为在洗碗机中，在采用从下往上供水的供水方式时，中喷臂装置的位置相对于低喷臂装置的位置高，中喷臂装置本身的水压相对于低喷臂装置的水压低，如若采用双喷臂装置或多喷臂装置作为中喷臂装置，就会更容易出现水压低的问题，进而导致中喷臂装置的喷臂转速较差，不利于提升洗碗机的洗净效果。
而在本实施例中，通过前述的，在中喷臂210与配合组件300的连接处形成迷宫密封等手段，显著提升密封性能，水经中喷臂210与配合组件300的连接处泄露的路径曲折，可以有效减少泄压，保证水压。从而可以使得双中喷臂装置和多中喷臂装置可以作为洗碗机的中喷臂装置。
在本实施例中，如图7-图9所示，配合组件300位于第一中喷臂组件200a的一侧，第二中喷臂组件200b位于第一中喷臂组件200a的另一侧。第一中喷臂组件200a与配合组件300的连接点为参考点，第一中喷臂组件200a与第二中喷臂组件200b的连接点与参考点对应设置。具体地，在本实施例中，第一中喷臂组件200a与第二中喷臂组件200b的连接点与参考点在上下方向上正对设置。如此，配合组件300中的水更便于进入第二中喷臂组件200b，使得第二中喷臂组件200b具有较大的水压。
在本实施例中，参考点位于第一中喷臂组件200a的中部。如此，便于使得第一中喷臂组件200a的两端的水压相对均匀。
在本实施例中，第一中喷臂组件200a与第二中喷臂组件200b的长度大致相同。如此，便于使得第二中喷臂组件200b的两端的水压相对均匀。
在一些实施例中，以第一中喷臂组件200a与配合组件300的连接点为分界，第一中喷臂210a包括位于长度方向上的第一部分214和第二部分216。其中，第一部分214至少设置有一个第二中喷臂组件200b；和/或，第二部分216至少设置有一个第二中喷臂组件200b。也即在本实施例中，第二中喷臂组件200b可以为一个或多个(大于等于两个)。此时，第一中喷臂210a可以认为是主中喷臂，第二中喷臂210b可以认为是副中喷臂。第二中喷臂210b也可以认为是第一中喷臂210a的卫星，此时，中喷臂装置10为卫星中喷臂装置。
在本实施例中，在工作时，相对于配合组件300，第一中喷臂210a和第二中喷臂210b均旋转，至少一个第二中喷臂210b的旋转方向和第一中喷臂210a的旋转方向不同。如此， 水流可以从不同角度冲刷餐具，提升洗净效果。可以理解，在其他实施例中，第二中喷臂210b为多个，多个第二中喷臂210b的旋转方向相同，且与第一中喷臂210a的旋转方向相同。
在一实施例中，如图10-图14所示，中喷臂装置10包括中喷臂组件200、配合组件300和辅助组件400。中喷臂组件200的中喷臂210为第一中喷臂210a。辅助组件400包括第二中喷臂410和第二轴承结构420。第二中喷臂410通过第二轴承结构420与第一中喷臂210a连接，并能相对于第一中喷臂210a旋转。
其中，第二轴承结构420的结构与第一轴承结构220的结构可以相同，也可以不相同。在上述结构中，中喷臂组件200连接配合组件300和辅助组件400，中喷臂组件200与配合组件300的连接点处的重力大于中喷臂组件200与辅助组件400的连接点处的重力，从而因重力原因，第一中喷臂210a与配合组件300之间的连接稳定性，相对于第二中喷臂410和第一中喷臂210a之间的连接稳定性较差。基于上述差异，同时兼顾成本，在本实施例中，设置第二轴承结构420的结构与第一轴承结构220的结构不同。
具体地，在本实施例中，第一轴承结构220为平面推力轴承，采用平面推力轴承连接第一中喷臂210a与配合组件300，更利于降低第一中喷臂210a脱落的概率。第二轴承结构420为深沟球轴承，采用深沟球轴承连接第二中喷臂410和第一中喷臂210a，更利于降低中喷臂装置10的成本。
在本实施例中，第二中喷臂410位于第一中喷臂210a靠近配合组件300的一侧。也即第二中喷臂410位于第一中喷臂210a的上方，如此，第一中喷臂210a可以对第二中喷臂410起到支撑的作用，降低第二中喷臂410脱落的概率。
在本实施例中，第二轴承结构420包括内环422、外环424和第二滚动体426。内环422能通过第二滚动体426相对于外环424旋转。内环422设于第一中喷臂210a与第二中喷臂410中的一者上，外环424设于第一中喷臂210a与第二中喷臂410中的另一者上。具体地，在本实施例中，内环422设于第二中喷臂410上，外环424设于第一中喷臂210a上。
在本实施例中，第二中喷臂410具有第三管状部412。第一中喷臂210a具有第四管状部218。内环422套设于第三管状部412上。第四管状部218套设于外环424上。如此，不仅便于装配第二轴承结构420，而且便于提升第二中喷臂410与第一中喷臂210a的连接处的密封性能，水经第二中喷臂410与第一中喷臂210a的连接处泄露的路径曲折，可以有效减少泄压，保证水压。
在本实施例中，第一中喷臂210a还具有第五管状部219。第五管状部219插设于第三管状部412内。如此，可以进一步提升第二中喷臂410与第一中喷臂210a的连接处的密封性能。
在本实施例中，如图10-图16所示，以配合组件300与第一中喷臂210a的连接处分界，第一中喷臂210a包括位于长度方向上的第一部分214和第二部分216。第一部分214至少设置一个辅助组件400；和/或第二部分216至少设置一个辅助组件400。此时，第一中喷臂210a可以认为是主中喷臂，第二中喷臂410可以认为是副中喷臂。第二中喷臂410也可以认为是第一中喷臂210a的卫星，此时，中喷臂装置10为卫星中喷臂装置。
在本实施例中，如图10-图16所示，第二部分216与配合组件300对应设置。在一些实施例中，如图10-图14所示，辅助组件400为一个，设于第一部分214上。在一些实施例中，如图15和图16所示，辅助组件400为两个，一个辅助组件400设于第一部分214上，另一个辅助组件400设于第二部分216上。
在本实施例中，在工作时，相对于配合组件300，第一中喷臂210a和第二中喷臂410均旋转，且至少一个第二中喷臂410的旋转方向和第一中喷臂210a的旋转方向不同。如此，水流可以从不同角度冲刷餐具，提升洗净效果。可以理解，在其他实施例中，第二中喷臂410为多个，多个第二中喷臂410的旋转方向相同，且与第一中喷臂210a的旋转方向相同。
本申请还提出一种洗碗机，该洗碗机包括中喷臂装置10，该中喷臂装置10的具体结构参照上述实施例，由于本洗碗机采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (13)

  1. 一种中喷臂组件(200)，用于与洗碗机的配合组件(300)配合使用，其中，包括：
    中喷臂(210)；以及
    第一轴承结构(220)，包括在所述配合组件(300)与所述中喷臂(210)的排布方向上依次排布的第一滚动配合件(222)、第一滚动体(226)和第二滚动配合件(224)，所述第一滚动配合件(222)设于所述中喷臂(210)上，所述第二滚动配合件(224)用于连接所述配合组件(300)，所述第一滚动配合件(222)能通过所述第一滚动体(226)在所述第二滚动配合件(224)运动，以使得所述中喷臂(210)能相对于所述配合组件(300)旋转。
  2. 如权利要求1所述的中喷臂组件(200)，其中，还包括连接所述第一滚动配合件(222)与所述中喷臂(210)的第一连接结构(230)和连接所述第二滚动配合件(224)和配合组件(300)的第二连接结构(240)，所述第二连接结构(240)与所述第一连接结构(230)连接。
  3. 如权利要求2所述的中喷臂组件(200)，其中，所述第一连接结构(230)包括第一管状部(232)和套设于所述第一管状部(232)上的第一环状部(234)；所述第二连接结构(240)包括第二管状部(242)和设于所述第二管状部(242)内的第二环状部(244)；
    所述第一轴承结构(220)和所述第一环状部(234)均位于所述第二管状部(242)内，所述第一滚动配合件(222)相对于所述第二滚动配合件(224)更靠近所述第一环状部(234)，所述第一管状部(232)插接于所述第二环状部(244)的通孔内，并与所述中喷臂(210)连接，所述第二管状部(242)靠近所述第一环状部(232)的一端与所述配合组件连接，以使得所述第一环状部(234)压于所述第一滚动配合件(222)上，所述第二环状部(244)压于所述第二滚动配合件(224)上。
  4. 如权利要求1所述的中喷臂组件(200)，其中，所述第一轴承结构(220)还包括第一连接部(228)和第二连接部(229)，在配合组件(300)与所述中喷臂(210)的排布方向上，所述第一连接部(228)与所述第一滚动配合件(222)连接，所述第二连接部(229)与所述第二滚动配合件(224)连接；
    所述第一连接部(228)与所述中喷臂(210)连接，所述第二连接部(229)连接与所述第一连接部(228)与配合组件(300)。
  5. 如权利要求4所述的中喷臂组件(200)，其中，所述第一连接部(228)为第一管状部(232)，所述第一滚动配合件(222)为第一环状部(234)，并套设于所述第一管状部(232)上；
    所述第二连接部(229)为第二管状部(242)，所述第二滚动配合件(224)为第二环状部(244)，并设于所述第二管状部(242)内；
    所述第一管状部(232)插接于所述第二环状部(244)的通孔内，所述第一环状部(234)位于所述第二管状部(242)内，并压于所述第一滚动体(226)的一侧上，所述第二管状部(242)靠近所述第一环状部(232)的一端与所述配合组件连接，所述第二环状部(244)压于所述第一滚动体(226)的另一侧上。
  6. 如权利要求3或5所述的中喷臂组件(200)，其中，所述中喷臂(210)具有第一连通管(212)，所述第二环状部(244)和所述第一轴承结构(220)套设于所述第一连通管(212)外，插接于所述第一连通管(212)内的所述第一管状部(232)，使得所述第一环状部(234)、所述第一轴承结构(220)、所述第二环状部(244)和所述中喷臂(210)依次紧贴。
  7. 如权利要求6所述的中喷臂组件(200)，其中，所述配合组件(300)具有与所述第二管状部(242)插接的第二连通管(310)，和/或插接于所述第一管状部(232)内的第三连通管(320)。
  8. 如权利要求6或7所述的中喷臂组件(200)，其中，所述第一连通管(212)远离所述配合组件(300)的一端具有第一台阶结构，所述第一管状部(232)的内壁具有第二台阶结构，所述第二台阶结构与所述第一台阶结构卡接。
  9. 一种中喷臂装置，其中，包括：
    如权利要求1-8中任意一项所述的中喷臂组件(200)以及所述的配合组件(300)。
  10. 如权利要求9所述的中喷臂装置，其中，所述中喷臂组件(200)为两个，分别为第一中喷臂组件(200a)和第二中喷臂组件(200b)，所述第一中喷臂组件(200a)的中喷臂(210)连接所述配合组件(300)与所述第二中喷臂组件(200b)的中喷臂(210)；
    当以所述第一中喷臂组件(200a)的中喷臂(210)和所述第二中喷臂组件(200b)为参考时，所述第一中喷臂组件(200a)的中喷臂(210)为所述第二中喷臂组件(200b)的配合组件(300)。
  11. 如权利要求9所述的中喷臂装置，其中，还包括辅助组件(400)，所述中喷臂组件(200)的中喷臂(210)为第一中喷臂(210a)，所述辅助组件(400)包括第二中喷臂(410)和第二轴承结构(420)，所述第二轴承结构(420)连接所述第一中喷臂(210a)与所述第二中喷臂(410)，并使得所述第二中喷臂(410)能相对于所述第一中喷臂(210a)旋转。
  12. 如权利要求11所述的中喷臂装置，其中，以配合组件(300)与所述第一中喷臂(210a)的连接处为分界，所述第一中喷臂(210a)包括位于长度方向上的第一部分(214) 和第二部分(216)；
    所述第一部分(214)和/或所述第二部分(216)至少设置有一个所述辅助组件(400)。
  13. 一种洗碗机，其中，包括如权利要求9-12中任意一项所述的中喷臂装置。
PCT/CN2022/078389 2021-06-24 2022-02-28 中喷臂组件、中喷臂装置和洗碗机 WO2022267517A1 (zh)

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