WO2023024483A1 - 一种洗碗机喷淋器及洗碗机 - Google Patents

一种洗碗机喷淋器及洗碗机 Download PDF

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Publication number
WO2023024483A1
WO2023024483A1 PCT/CN2022/080679 CN2022080679W WO2023024483A1 WO 2023024483 A1 WO2023024483 A1 WO 2023024483A1 CN 2022080679 W CN2022080679 W CN 2022080679W WO 2023024483 A1 WO2023024483 A1 WO 2023024483A1
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WO
WIPO (PCT)
Prior art keywords
spray arm
spray
joint
gear
planetary gear
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PCT/CN2022/080679
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English (en)
French (fr)
Inventor
褚延宾
潘显杰
邵明阳
杨林
Original Assignee
青岛海尔洗碗机有限公司
海尔智家股份有限公司
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.)
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Publication date
Application filed by 青岛海尔洗碗机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔洗碗机有限公司
Priority to CN202280001221.3A priority Critical patent/CN117062559A/zh
Publication of WO2023024483A1 publication Critical patent/WO2023024483A1/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 invention belongs to the technical field of dishwashers, and in particular relates to a shower structure for dishwashers.
  • Dishwasher is one of the more common electrical appliances at present. It is used in the kitchen to wash dishes such as dishes after meals, and it can also be used to wash some fruits and vegetables, which greatly facilitates people's lives and can To a large extent, people are freed from the more frequent manual washing of tableware such as dishes and fruits and vegetables.
  • the dishwasher usually uses a spray arm to perform spray washing on washing items such as tableware or fruits and vegetables.
  • the spray arm of the dishwasher is usually provided with a plurality of water outlets, driven by the circulating pump body, the washing water is introduced into the spray arm of the dishwasher and then sprayed onto the tableware or fruits and vegetables.
  • the cross-sectional shape of the water sprayed by the water outlet of the spray arm is often consistent with the shape of the water outlet, and it is mostly columnar after spraying. In this way, when the spray arm rotates, multiple rings corresponding to the positions of the water outlets of the spray arm are formed on each plane in the height range of the area where the dishes to be washed or fruits and vegetables are located.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a shower to solve the problem that the spray water of the existing shower cannot cover the corner area of the cleaning liner, so as to realize the cleaning of the dishwasher.
  • the invention provides a dishwasher sprayer, which comprises a spray seat; a power spray arm which can rotate around the central axis of the spray seat and is installed on the spray seat; a cleaning spray arm which can be set around itself
  • the rotating shaft of spraying is installed on the power spraying arm; the planetary gear frame is installed eccentrically with the central axis of the spraying seat on the power spraying arm; gear, and the planetary gear meshed with the driven gear set on the cleaning spray arm.
  • the spray seat is provided with an installation joint extending along the central axis and defining a water outlet inside, and a fixed gear fixed or integrated with the spray seat is arranged coaxially on the installation joint;
  • the central axis of the shower seat is arranged coaxially, corresponding to the first rotating shaft part that is rotatable around the axis and installed in the installation joint of the shower seat.
  • the power spray arms on both sides opposite to the first rotating shaft part are respectively the first part and the second part; the axially longer first part of the power spray arm is provided with at least one drive spray hole; the power spray arm The second axially shorter part is equipped with a cleaning spray arm that can rotate around the spray shaft; the spray shaft is parallel to the central axis and arranged eccentrically; preferably, the driving spray hole is located in the axial direction of the power spray arm Extend the end of the first section to a longer length.
  • the middle part of the cleaning spray arm is provided with a second rotating shaft part protruding downward along the axis, constituting the spraying rotating shaft, and correspondingly rotatable around the shaft, which is installed at the end of the second part of the power spraying arm; the second rotating shaft
  • the part is provided with a driven gear coaxially arranged, fixed or integrally arranged with the cleaning spray arm.
  • the planetary gear carrier includes a planetary gear carrier shaft arranged parallel to the central axis of the spray seat; the planetary gear carrier shaft can be relatively rotated around the axis and is installed in the middle of the second part of the power spray arm; the planetary gear carrier shaft
  • the planetary gears are fixedly installed or integrally arranged, and the planetary gears mesh with the driven gear and the fixed gear respectively.
  • the upper and lower ends of the planetary gear carrier shaft respectively protrude from the power spray arm, and are fixedly installed respectively, or are provided with an upper planetary gear and a lower planetary gear integrally; the upper planetary gear and the driven gear set on the cleaning spray arm meshing; the lower planetary gear meshes with the fixed gear set on the spray seat.
  • the spray seat, the power spray arm and the cleaning spray arm are arranged at intervals from bottom to top; the power spray arm and the cleaning spray arm all extend horizontally; the spray seat, the power spray arm and the cleaning spray arm The central axes are all set vertically.
  • the water path formed by the installation joint of the spray seat communicates with the first water path set in the power spray arm through the first rotating shaft part, and the first water path set in the power spray arm communicates with the cleaning spray through the second rotating shaft part.
  • the second waterway set in the shower arm is connected.
  • a plurality of cleaning spray holes are arranged on the cleaning spray arm, and the distances between the cleaning spray holes and the axis of the second rotating shaft are not equal.
  • the invention also discloses a dishwasher, which includes: an inner container; the above-mentioned dishwasher sprayer is installed in the inner container, and the spray seat of the dishwasher sprayer is fixedly installed on the inner wall of the inner container .
  • the present invention has the following beneficial effects compared with the prior art:
  • the rotation of the power spray arm is transmitted to the cleaning spray arm at a set turn-stop ratio through the planetary gear train. Then drive the cleaning spray arm to rotate around the axis corresponding to the controllable steering and speed, and then realize the effect of the power spray arm driving the cleaning spray arm to rotate; at the same time, due to the transmission of the planetary transmission gear mechanism, the power spray arm It is arranged eccentrically with the rotating shaft of the cleaning spray arm, so that the end track of the cleaning spray arm forms a square shape, so as to achieve the purpose that the sprayer can clean the corners of the inner container of the dishwasher accordingly.
  • the present invention also provides a rotary sealing connection structure between spray arms, so as to realize the purpose of anti-eccentricity at the rotary joints between different spray arms.
  • the invention provides a rotary sealing connection structure between spray arms, which is arranged between the power spray arm and the cleaning spray arm; the cleaning spray arm is provided with a water inlet joint; the power spray arm is provided with a water outlet joint , the water outlet joint can be inserted into the water inlet joint by relative rotation around the axis; the cleaning spray arm is provided with an autorotation shaft inserted into the water inlet joint and coaxially arranged, and the water outlet joint of the power spray arm is provided with a sleeve set on the rotation shaft Outer circumference, positioning ring for axially offset positioning.
  • the autorotation shaft is arranged coaxially with the water inlet joint and the water outlet joint, one end of the autorotation shaft is fixedly connected to or integrated with the cleaning spray arm, and the other end is correspondingly inserted into the shaft positioning groove provided on the internal waterway of the power spray arm.
  • the water outlet joint is provided with a protruding part extending into the internal waterway of the cleaning spray arm.
  • the end of the protruding part is provided with a positioning ring.
  • the side wall is in contact with the inner peripheral hole wall of the positioning ring correspondingly.
  • a positioning part is provided on the rotation shaft, and the positioning part is correspondingly located in the positioning ring, and the radial dimension of the outer circumference of the positioning part is larger than other parts of the rotation shaft; preferably, the lower end of the positioning part and the corresponding joint with the positioning ring are provided with tapered face.
  • the radial dimension of the autorotation shaft is smaller than the radial dimension of the inner peripheral wall of the water outlet joint, and the gap between the autorotation shaft and the water outlet joint constitutes a communication channel for the water supply to flow between the cleaning spray arm and the power spray arm.
  • the end of the water outlet joint inserted into the internal waterway of the cleaning spray arm is provided with a plurality of protruding ribs arranged at an angle at intervals, and the upper ends of each protruding rib are connected to form a circular positioning ring together.
  • the gap constitutes a hollow opening for leading out the water flow in the water path between the water outlet joint and the rotation shaft; the hollow opening connects the first water path in the power spray arm and the cleaning The second water path in the spray arm is conducted.
  • the water outlet joint is inserted into the water inlet joint, and at least one sealing ring is provided at the joint between the outer wall of the water outlet joint and the inner wall of the water inlet joint.
  • the water outlet joint is provided with an outer locking protrusion protruding radially outward
  • the water inlet joint is provided with an inner locking protrusion protruding radially inward.
  • the present invention also provides a shower to solve the problem that the spray water of the existing shower cannot cover and clean the corner area of the inner container, so as to achieve the purpose of covering and cleaning the corner area of the inner container of the dishwasher .
  • the present invention also discloses a dishwasher, which includes: an inner tank; a shower is installed in the inner tank, and the shower adopts the above-mentioned rotating and sealed connection structure between the spray arms.
  • the present invention has the following beneficial effects compared with the prior art:
  • the spray arm of the existing sprinkler is installed on the spray seat, and the installation place is generally not only set as a rotating pair, but also needs to make the water supply at the spray seat be diverted to the spray arm through the connection.
  • this makes the installation of the spray arm and the spray seat not only need to realize relative rotation, but also to carry out water sealing treatment, so the anti-eccentric displacement of the installation structure of the spray arm and the spray seat is put forward Very demanding.
  • the present invention also provides an installation structure between the spray arm and the spray seat, so as to realize the purpose of anti-eccentric positioning installation for the spray arm of the dishwasher.
  • An installation structure between a spray arm and a spray seat which is arranged between the power spray arm and the spray seat; the spray seat is provided with an installation joint, and the power spray arm is provided with a rotary joint, which can be rotated around The shaft rotates and is inserted into the installation joint; the outer wall of the rotary joint is provided with at least one limit ring protruding radially, and the outer circumference of the limit ring is in contact with the inner wall of the rotary joint.
  • two ends of the rotary joint are respectively provided with a radially protruding limiting ring, and the outer peripheries of the two limiting rings are in contact with corresponding parts of the inner wall of the installation joint.
  • the rotary joint is correspondingly inserted into the installation joint from top to bottom, and the lower end of the installation joint is provided with a radially protruding annular stopper, and the lower end of the rotary joint is in contact with the upper support surface of the annular stopper, for rotating After the connector is plugged in, the connector is supported on the upper side of the annular stopper.
  • the rotary joint is a tapered joint whose radial dimension gradually narrows from top to bottom.
  • the upper end of the rotary joint is fixedly connected with the lower surface of the power spray arm, or is integrally arranged.
  • the first waterway is connected; the rotary joint is coaxially inserted into the installation joint, and the lower end of the rotary joint is supported and in contact with the annular stopper provided on the inner side wall of the installation joint.
  • the inner wall of the installation joint is divided into a plurality of hole sections with different radial dimensions, and the radial dimensions of each hole section are set in descending order from top to bottom; the inner wall of the uppermost hole section and the outer circumference of the upper limit ring at the upper end of the rotary In contact with each other; the inner wall of the lowermost hole segment is in contact with the outer circumference of the lower limit ring at the lower end of the rotary joint; preferably, the connection between adjacent hole segments is provided with a tapered transition surface.
  • the uppermost end of the installation joint is provided with a radially inwardly protruding annular protrusion, the radial dimension of the inner circumference of the annular protrusion is smaller than the radial dimension of the outer circumference of the upper limit ring provided on the rotary joint; preferably, the annular protrusion The radial dimension of the inner circumference is greater than or equal to the radial dimension of the outer circumference of the lower limit ring arranged on the rotary joint.
  • the annular stop part includes: a first stop part protruding radially inward from the inner wall of the installation joint, extending horizontally, and having an annular shape; a second stop part protruding from the inner periphery of the annular first stop part It protrudes upwards, extends vertically, and is cylindrical; the outer peripheral side of the first stop part is fixedly connected with the installation joint, or connected integrally; the upper end of the second stop part constitutes an upper support surface for connecting with the lower end of the rotary joint Support contact.
  • At least one sealing ring is provided at the contact between the installation joint and the rotary joint, which is used to isolate the flowing water from overflowing from the joint.
  • sealing rings are respectively provided between the outer circumferences of the upper and lower limit rings and the inner wall of the installation joint; and/or, at least one sealing ring is provided at the joint between the lower end of the rotary joint and the annular stopper of the installation joint.
  • the present invention also provides a shower to solve the problem that the spray water of the existing shower cannot cover and clean the corner area of the inner container, so as to achieve the purpose of covering and cleaning the corner area of the inner container of the dishwasher .
  • the present invention also discloses a dishwasher, which includes: an inner tank; a shower is installed in the inner tank, and the shower adopts the above-mentioned gap between the spray arm and the spray seat. Install structure.
  • the present invention has the following beneficial effects compared with the prior art:
  • each spray arm has different relative positions, when the shower is installed, if the spray arms are not located at the set position , will lead to different movement paths of the spray arm in the liner, so that the sprayer cannot exert the maximum spray cleaning effect; therefore, how to set up a positioning structure between different spray arms of the sprayer so that the sprayer The sprinkler can maintain and set the initial position, so that the sprinkler can be quickly assembled in the set position state, which has become a technical problem that needs to be solved urgently.
  • the present invention also provides a sprayer to achieve the purpose of preset positioning of the relative positions of the spray arms.
  • the invention provides a sprinkler, which includes a spray seat; at least two spray arms installed on the spray seat; each spray arm is connected through a planetary transmission gear mechanism, and each spray arm can generate Self-rotation and/or revolution; the positioning rod passes through each spray arm and engages with at least part of the gears in the planetary transmission gear mechanism, and is used to keep each spray arm at a set position.
  • each spray arm is respectively provided with a positioning hole through up and down, and the positioning rod passes through the positioning hole set on each spray arm in the set position in turn, and the positioning rod passes through at least one of the planetary transmission gear mechanisms. Where the gears mesh.
  • the positioning rod also passes through the positioning hole provided on the spray seat and passing through from top to bottom.
  • the positioning rod is divided into an upper part with a larger radial dimension and a lower part with a smaller radial dimension; the radial dimension of the lower part of the positioning rod is smaller than or equal to the aperture of the positioning hole set on each spray arm.
  • the first gear set includes an upper planetary gear and a driven gear that mesh with each other, and the driven gear is fixed on the cleaning spray arm;
  • the second gear set includes a lower planetary gear that meshes with each other and a fixed gear, and the fixed gear is fixed on the On the spray seat;
  • the upper planetary gear and the lower planetary gear are fixed on the planetary gear carrier shaft, and the planetary gear carrier shaft can be rotated around the axis and installed on the power spray arm;
  • the upper end of the lower part of the positioning rod is located in the first gear set
  • the positive rotation side of the upper planetary gear mesh is used to block the forward rotation of the first gear set;
  • the lower end of the lower part of the positioning rod is located on the reverse direction side of the lower planetary gear mesh of the second gear set. To block the reverse transmission rotation of the first gear set.
  • the lower part of the positioning rod passes through the upper planetary gear, or the meshing tooth groove of the forward rotation direction side of the driven gear; the lower part of the positioning rod passes through the lower planetary gear, or the opposite side of the meshing tooth of the fixed gear.
  • the upper end surface support is above the upper planetary gear or the driven gear.
  • the present invention also provides a dishwasher, wherein any one of the above-mentioned showers is installed in the inner container of the dishwasher.
  • the present invention has the following beneficial effects compared with the prior art:
  • the positioning rod By setting the positioning rod on the sprinkler, the positioning rod is sequentially passed through the preset through holes set on each spray arm and meshed with the corresponding gear of the transmission gear set to stop, so that the positioning rod can be plugged and installed.
  • Each spray arm of the sprinkler is limited to the initially set position, thereby achieving significant technical progress in positioning the initial position of the sprinkler and facilitating the transportation and installation of the sprinkler.
  • the present invention aims to solve the above technical problems by overcoming the deficiencies of the prior art, and also provides a sprayer to realize the purpose of reducing the friction loss of the planetary wheel frame installed on the spray arm.
  • the anti-friction ring is a sleeve structure coaxially sleeved outside the shaft of the planetary gear carrier, and the outer circumference of the sleeve structure is provided with a plurality of radially protruding anti-friction ribs arranged at intervals; each anti-friction protrusion The protruding ends of the ribs are all in limited contact with the walls of the mounting holes.
  • each anti-friction rib is equal to or slightly larger than the diameter of the mounting hole, which is used to form an interference fit between the anti-friction ring and the mounting hole.
  • the upper end of the planetary gear carrier shaft is integrally provided with an upper planetary gear, and the upper planetary gear and the planetary gear carrier shaft are arranged coaxially;
  • the upper end surface of the anti-friction ring is provided with a radially protruding circle of ribs, and the outer circumference of the ribs
  • the dimension is larger than the aperture of the installation hole;
  • the upper end surface of the retaining rib is provided with a ring of protrusions protruding upwards, and the upper end surface of the retaining rib and the lower end surface of the upper planetary gear are affected by the protrusions to form a gap.
  • the outer peripheral wall of the planetary gear carrier shaft is provided with at least one circle of radial protrusions, and the radial dimension of the central through hole of the cylindrical anti-friction ring is smaller than or equal to the radial dimension of the outer circumference of the protrusions.
  • the walls of the inner peripheral holes of the friction ring are respectively snap-fitted to form a fixation between the cylindrical anti-friction ring and the planetary gear carrier shaft in the axial direction; The upper end and the lower end of the central through hole of the cylindrical anti-friction ring respectively form a buckle connection.
  • the lower end of the planetary gear carrier shaft is provided with a buckle part protruding downward, and the lower planetary gear is fixedly installed on the buckle part, and the lower planetary gear is arranged coaxially with the planetary gear carrier shaft.
  • the central axis of the lower planetary gear is provided with a non-circular hole
  • the buckle part is inserted into the non-circular hole
  • the buckle part and the non-circular hole form a detachable connection that cannot be rotated relative to the axis.
  • the buckle part includes two shrapnels arranged in parallel and at intervals, and the outer peripheries of the two shrapnels are in contact with the walls of the non-circular holes of the buckle part respectively, so as to form a mutual insertion connection that cannot be rotated relative to each other;
  • the outer walls of the two shrapnels are respectively provided with radial protrusions, which are used to snap and connect the lower end surface of the lower planetary gear; the two shrapnels can produce elastic deformation under their own characteristics, and are used to narrow the gap between the two shrapnels, Make the buckle separate from the lower planetary gear.
  • a stop protrusion protruding axially downward is provided at the non-round hole of the lower planetary gear, and the stop protrusion is located in the middle of the non-round hole; when the buckle part is inserted into the non-round hole, the stop protrusion is inserted into the buckle part correspondingly In the gap between the two shrapnel.
  • the present invention also provides a dishwasher, wherein any one of the above-mentioned showers is installed in the inner container of the dishwasher.
  • the present invention has the following beneficial effects compared with the prior art:
  • the planetary gear carrier shaft By installing an anti-friction ring between the planetary gear carrier shaft and the power spray arm, the planetary gear carrier shaft only contacts with the smooth inner wall of the anti-friction ring when the planetary gear carrier shaft rotates around the axis, thereby reducing the rotation speed of the planetary gear carrier shaft.
  • the anti-friction ring due to the installation of the anti-friction ring, the anti-friction ring will not rotate with the planetary gear carrier shaft under the large friction resistance of its outer wall, so that the installation hole of the power spray arm is only in line with the The outer walls of the rotating anti-friction rings are connected to each other, which reduces the wear of the wall of the installation hole and prolongs the service life of the sprinkler.
  • the different spray arms of the sprinkler are generally equipped with transmission structures respectively, but since the spray holes of different spray arms will spray water at the places, the spray water will interfere with different transmission structures; Especially if the foreign matter etc. washed by the spray water on the tableware falls to the transmission structure, it is very easy to cause the transmission structure to be stuck. Therefore, how to put foreign matter into the transmission structures and rotating joints provided at different spray arms has become a technical problem that needs to be solved urgently. To solve the above-mentioned technical problems, the present invention also provides a sprinkler to shield different spray arms, thereby preventing foreign objects from falling to the transmission structures of different spray arms.
  • the invention provides a sprayer, which comprises: a spray seat; a power spray arm, rotatably mounted on the spray seat; a cleaning spray arm, rotatably mounted on the power spray arm; a power spray arm
  • the first shielding cover is provided on the spray arm, which is used to shield the rotating connection between the power spray arm and the spray seat; the second shielding cover is provided on the cleaning spray arm, which is used to shield the cleaning spray arm and the power spray.
  • the upper end of the spray seat is provided with a radially outwardly protruding fixed gear, and the lower planetary gear which is on the lower side and meshes with the fixed gear is installed on the power spray arm; the first shield cover at least covers the fixed gear and lower planetary gears.
  • the first shielding cover is in the shape of a disc coaxially arranged with the fixed gear, and the radius of the disc-shaped first shielding cover is greater than or equal to the sum of the radius of the fixed gear and the diameter of the lower planetary gear.
  • the lower side of the cleaning spray arm is provided with a driven gear that protrudes downward and is vertically arranged with an axis, and an upper planetary gear that is on the upper side and meshes with the driven gear is installed on the power spray arm;
  • the second shade covers at least the shade driven gear and the upper planetary gear.
  • the second shielding cover is in the shape of a disc arranged coaxially with the driven gear, and the radius of the second disc-shaped shielding cover is greater than or equal to the sum of the radius of the driven gear and the diameter of the upper planetary gear.
  • a circle of ribs bent vertically downward are respectively provided on the outer periphery of the shade cover, and the lower ends of the ribs are not higher than the lower end surface of the gear below the shade cover.
  • the power spray arm is provided with a gear meshing area for the installation of the planetary gear train, and the gear meshing area and the first water channel set in the power spray arm are alternately arranged.
  • the power spray arm is provided with a rotary joint connected with the spray seat and a water outlet joint connected with the cleaning spray arm; the rotary joint and the water outlet joint are arranged eccentrically, and the power spray arm is located between the rotary joint and the water outlet joint
  • the part in the middle is divided into left and right areas, the left area has a channel forming part of the first waterway, which is used to connect the rotary joint and the water outlet joint; the right area is a gear meshing area isolated from the first waterway, on which there is a supply
  • the planet gear carrier shaft passes through the mounting hole of the mounting.
  • the present invention also provides a dishwasher, wherein the above-mentioned sprayer is installed in the inner tank of the dishwasher.
  • the present invention has the following beneficial effects compared with the prior art:
  • the shielding coverings set on each spraying arm can respectively shield the transmission gear set at each spraying arm, effectively avoiding the spraying water of the dishwasher from spraying to the transmission gear.
  • the transmission gear mechanism of the sprinkler will not be interfered by spray water, cleaning foreign objects, etc., thereby ensuring the smooth operation of the sprinkler.
  • the present invention has the advantages of simple structure, concise method and remarkable effect, and is suitable for popularization and use.
  • Fig. 1 is the schematic diagram of the principle of the sprinkler in the embodiment of the present invention.
  • Fig. 2 is the structural representation of shower in the embodiment of the present invention.
  • Fig. 3 is a schematic diagram of the explosion structure of the sprinkler in the embodiment of the present invention.
  • Fig. 7 is a schematic cross-sectional structure diagram of B-B of Fig. 6 in the embodiment of the present invention.
  • Fig. 8 is a schematic diagram of an enlarged structure at C of Fig. 7 in an embodiment of the present invention.
  • FIGS. 9 and 10 are schematic diagrams of exploded structures of planetary gear sets from different perspectives in the embodiment of the present invention.
  • Fig. 11 is a schematic cross-sectional structure diagram of the planetary gear set in the embodiment of the present invention.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
  • a sprinkler structure of a dishwasher is introduced.
  • the sprinkler structure of the dishwasher is installed in the inner tank of the washing machine.
  • the washing water is sprayed in the inner container through the spray hole 6, and is used for washing the tableware contained in the inner container.
  • the sprinkler structure includes a power spray arm 200 and a cleaning spray arm 300;
  • the shower hole 61 when the spray hole 61 is driven to spray water outward, the power spray arm 200 is pushed by the reaction force of the spray water to rotate around the axis; the cleaning spray arm 300 can also rotate around the axis, and the power spray arm 200
  • the planetary transmission gear mechanism 400 is connected with the cleaning spray arm 300, so that the rotational force of the power spray arm 200 is transmitted through the planetary transmission gear mechanism 400, and the cleaning spray arm 300 is driven to rotate around the axis.
  • the cleaning spray hole 62 provided on the cleaning spray arm 300 is used to spray the cleaning water flow into the dishwasher liner to clean the tableware placed in the dishwasher liner.
  • this embodiment introduces a dishwasher shower, including a spray seat 100, the spray seat 100 defines a water flow channel, and the spray seat 100 itself constitutes an outlet
  • the two ends of the water flow channel are respectively connected with the water inlet junction of the dishwasher and the internal water circuit of the power spray arm 200 itself;
  • Spray seat 100 is mounted on the spray seat 100 with its central shaft rotating, and the power spray arm 200 can rotate around the axis under the reaction force of its own spraying water;
  • the cleaning spray arm 300 can rotate around its own spraying shaft
  • the rotating one is installed on the power spray arm 200;
  • the planetary transmission gear mechanism 400 connects the power spray arm 200 and the cleaning spray arm 300, and is used to transfer the rotational force of the power spray arm 200 to the cleaning
  • the spray arm 300 drives the cleaning spray arm 300 to rotate around the axis.
  • the planetary transmission gear mechanism 400 includes a planetary gear carrier, which is eccentrically arranged with the central axis of the spray seat 100 and installed on the power spray arm 200;
  • the axial rotation force acts on the cleaning and spraying arm 300 to drive the cleaning and spraying arm 300 to rotate around its own spraying axis and revolve around the central axis of the spraying seat 100 at the same time.
  • the cleaning spray arm 300 can not only be driven to rotate by the power spray arm 200, but also can keep the cleaning spray arm 300 revolving while rotating, so that the water flow sprayed from the end of the cleaning spray arm can cover the The corner of the dishwasher inner tank, thereby improving the cleaning effect of the sprayer on the tableware in the dishwasher inner tank.
  • the spray seat 100 is provided with a fixed gear 10 coaxial with the central rotating shaft, fixed or integrated with the spray seat 100; the spray seat 100 is provided with There is an installation joint 1 extending vertically up and down.
  • the installation joint 1 extends along the central rotation axis of the spray seat 100.
  • the lower end of the installation joint 1 forms a water inlet for communicating with the water inlet structure of the dishwasher.
  • the water inlet and The drain pan of the dishwasher is connected to supply water to the shower.
  • the power spray arm 200 is provided with a rotary joint 5 coaxial with the central rotating shaft of the spray seat 100 and correspondingly rotatable on the installation structure 1 of the spray seat 100; the rotary joint 5 constitutes a power spray
  • the shower arm 200 rotates around the first rotating shaft portion of the shower seat 100 .
  • the middle part of the cleaning spray arm 300 is provided with a first part protruding downward along the axis, constituting the spray rotating shaft, and corresponding to the end of the second part of the power spray arm 200 which can rotate around the axis.
  • Two rotating shaft parts; the second rotating shaft part is provided with a driven gear 11 coaxially arranged and fixed or integrated with the cleaning spray arm 300 .
  • a water inlet joint 3 protruding downward is provided on the lower side of the cleaning spray arm, and the water inlet joint 3 constitutes the above-mentioned second rotating shaft part.
  • the planetary gear carrier is a planetary gear carrier shaft 7 arranged parallel to the central rotating shaft of the spray seat 100; the planetary gear carrier shaft 7 can be installed relatively around its own axis In the middle of the second part of the power spray arm 200; the planetary gear carrier shaft 7 is fixedly installed or integrally provided with two planetary gears, and the two planetary gears mesh with the driven gear 11 and the fixed gear 10 respectively.
  • the upper and lower ends of the planetary gear carrier shaft 7 respectively protrude from the power spray arm 200, and are respectively fixedly installed or integrally provided with an upper planetary gear 8 and a lower planetary gear 9; the upper planetary gear 8 and the cleaning
  • the driven gear 11 provided on the spray arm 300 meshes; the lower planetary gear 9 meshes with the fixed gear 10 arranged on the spray seat 100 .
  • the spray seat 100, the power spray arm 200 and the cleaning spray arm 300 are arranged at intervals from bottom to top; the power spray arm 200 and the cleaning spray arm 300 are both Extend horizontally; the central axes of the spray seat 100, the power spray arm 200 and the cleaning spray arm 300 are all set vertically, and the two are arranged eccentrically with each other.
  • the axial extension length of the first part of the power spray arm 200 is less than half of the axial extension length of the cleaning spray arm 300; preferably, the axial extension length of the power spray arm 200 is less than the cleaning spray arm 300 Half the length of the axis extension.
  • the cleaning spray arm 300 is a symmetrical structure arranged symmetrically with respect to the spraying axis, or the cleaning spraying arm 300 is an asymmetrical structure arranged asymmetrically with respect to the spraying axis; preferably, as shown in FIG.
  • the cleaning spray arm 300 is a spray arm structure that extends longer to one side and shorter to the other side from the spray rotating shaft, so as to increase the length of the end of the cleaning spray arm 300 as far as possible, so that the two sides The ends move on different path trajectories, thereby improving the spray water coverage of the cleaning spray arm 300; further preferably, the cleaning spray arm 300 is arranged symmetrically with respect to the radial axis, and is spaced apart from the outer circumference of the cleaning spray arm 300 A plurality of cleaning spray holes 62 are arranged to realize the effect of spraying cleaning water outward.
  • the planetary gear carrier shaft 7 and the cleaning spray arm 300 installed on the power spray wall all revolve clockwise (or counterclockwise) at a speed n1 around the centerline axis of the installation joint 1 together with the power spray arm 200;
  • the lower planetary gear 9 installed on the planetary gear carrier shaft 7 meshes with the fixed gear 10 fixed on the installation joint 1, so that the lower planetary gear 9 is in the process of revolving around the center line axis of the installation joint 1.
  • This embodiment is based on the dishwasher spray arm described in the first embodiment above, and also has the following distinguishing technical features:
  • this embodiment introduces a rotating and sealed connection structure between the spray arms, which is arranged between the power spray arm 200 and the cleaning spray arm 300;
  • the cleaning spray arm 300 is provided with There is a water inlet joint 3;
  • the power spray arm 200 is provided with a water outlet joint 4, and the water outlet joint 4 can be inserted into the water inlet joint 3 with relative rotation around the axis, so that the cleaning spray arm can be installed on the On the power spray arm 200;
  • the cleaning spray arm 300 is provided with a rotation shaft 42 inserted into the water inlet joint 3 and arranged coaxially, and the water outlet joint 4 of the power spray arm 200 is provided with a sleeve set on the outer periphery of the rotation shaft 42, A positioning ring 41 for axial offset positioning thereof.
  • the autorotation shaft 42 is arranged coaxially with the water inlet joint 3 and the water outlet joint 4, and one end of the autorotation shaft 42 is fixedly connected with the cleaning spray arm 300 or integrally arranged, and the other end corresponds to the insertion power.
  • the rotating shaft positioning groove 43 provided on the waterway inside the spray arm 200 .
  • the water outlet joint 4 is provided with a protrusion extending into the internal waterway of the cleaning spray arm 300, and the end of the protrusion is provided with a positioning ring 42, and the rotation shaft 42 passes through the positioning
  • the positioning hole is formed in the inner periphery of the ring 42 , and the outer peripheral side wall of the self-rotating shaft 42 is in contact with the inner peripheral hole wall of the positioning ring 42 correspondingly.
  • a positioning part 411 is provided on the autorotation shaft 42, and the positioning part 411 is correspondingly located in the positioning ring 42, and the outer peripheral radial dimension of the positioning part 411 is larger than other parts of the autorotation shaft, so that
  • the lower end of the part 411 and the corresponding junction of the positioning ring 42 are tapered surfaces 412, not only the tapered surface 412 can be used to guide the rotation shaft 42 to pass through the inner peripheral through hole of the positioning ring 42;
  • the tapered contact surface of the ring 42 makes the self-rotating shaft 42 fit more fully with the inner wall of the positioning ring 42 , further ensuring that the cleaning and spraying arm 300 will not deviate during the rotation.
  • the radial dimension of the autorotation shaft 42 is smaller than the radial dimension of the inner peripheral wall of the water outlet joint 4, and the gap between the autorotation shaft 42 and the water outlet joint 4 constitutes the water supply flow between the cleaning spray arm 300 and the power spray arm 200. Connecting waterways flowing between.
  • the end of the water outlet joint 4 inserted into the internal waterway of the cleaning spray arm 300 is provided with a plurality of protruding ribs 45 arranged at angular intervals, and the ends of the protruding ribs 45 are connected together to form a A circular positioning ring 42; there is a gap between the protruding ribs 45, and the gap constitutes a hollow opening 46 through which the water flow passes, so that the washing water in the power spray arm 200 can pass through the water outlet joint 4 and the hollow opening 46 It flows into the water channel inside the cleaning spray arm 300 .
  • the water outlet joint 4 is inserted into the water inlet joint 3, and at least one sealing ring is provided at the joint between the outer wall of the water outlet joint 4 and the inner wall of the water inlet joint 3, so as to realize the cleaning of the power spray arm 200 and the cleaning spray arm 300.
  • the effect of water sealing at the rotating joint is provided at the rotating joint.
  • the water outlet joint 4 is provided with an outer card protrusion 441 protruding radially outward
  • the water inlet joint 3 is provided with an inner card protrusion 442 protruding radially inward.
  • the outer locking protrusion 441 and the inner locking protrusion 442 are connected by corresponding buckles, and are used for fixing the water outlet joint 4 after being inserted into the water inlet joint 3, thereby realizing the power spray arm 200 and the cleaning spray arm 300 can pass through water, can be rotated and connected to each other.
  • This embodiment is based on the dishwasher spray arm described in the first embodiment above, and also has the following distinguishing technical features:
  • this embodiment introduces an installation structure of a spray arm and a spray seat, which is arranged between the power spray arm 200 and the spray seat 100; the spray seat 100 is provided with Install the joint 1, the power spray arm 200 is provided with a rotary joint 5, the rotary joint 5 can be rotated around the axis and inserted into the corresponding installation joint 1; the outer wall of the rotary joint 5 is provided with at least one limit ring protruding radially 51 , the outer circumference of the limiting ring 51 is in contact with the inner wall of the rotary joint 5 .
  • a radially protruding limit ring 51 is provided at both ends of the rotary joint 5, and the outer circumferences of the two limit rings 51 correspond to the inner walls of the installation joint 1 respectively. The parts are in close contact.
  • the rotary joint 5 is correspondingly inserted into the installation joint 1 from top to bottom.
  • the upper supporting surfaces of the stopper 52 are in contact with each other, and are used to be supported and installed on the upper side of the annular stopper 52 after the rotary joint 5 is plugged into the installation joint 1 .
  • the rotary joint 5 is a tapered joint whose radial dimension gradually narrows from top to bottom.
  • the internal waterway of the power spray arm 200 is connected; the lower end of the rotary joint 5 is coaxially inserted into the installation joint 1, and supports and contacts with the annular stopper 52 provided on the inner wall of the installation joint 1 to realize the positioning in the vertical direction support.
  • the inner wall of the installation joint 1 is divided into a plurality of hole sections with different radial dimensions, and the radial dimensions of each hole section are set in descending order from top to bottom;
  • the inner wall of the uppermost hole section It is in contact with the outer circumference of the upper limit ring 511 at the upper end of the rotary joint 5;
  • the inner wall of the lowermost hole segment is in contact with the outer circumference of the lower limit ring 512 at the lower end of the rotary joint 5; preferably, the connection between adjacent hole segments
  • Both are equipped with a tapered transition surface to enhance the structural strength of the installation structure.
  • the uppermost end of the installation joint 1 is provided with a radially inwardly protruding ring-shaped protrusion 53, and the radial dimension of the inner circumference of the ring-shaped protrusion 53 is smaller than the upper limit set on the rotary joint 5.
  • the radial dimension of the outer circumference of the ring 511 preferably, the radial dimension of the inner circumference of the ring protrusion 53 is greater than or equal to the radial dimension of the outer circumference of the lower limit ring 512 provided on the rotary joint 5 .
  • the annular stopper 52 includes a first stopper 521 protruding radially inward from the inner wall of the installation joint 1, extending horizontally, and annular; a second stopper part 522, which protrudes upward from the inner circumference of the annular first stop part 521, extends vertically, and is cylindrical; the outer peripheral side of the first stop part 521 is fixedly connected with the installation joint 1, or integrally connected; the second stop The upper end of the blocking portion 522 constitutes an upper supporting surface for supporting contact with the lower end of the rotary joint 5 .
  • At least one sealing ring is provided at the contact between the installation joint 1 and the rotary joint 5 to isolate the flowing water from overflowing from the joint.
  • sealing rings can be respectively provided between the outer circumferences of the upper and lower limit rings 511, 512 and the inner wall of the installation joint 1; At least one sealing ring is provided at the connection to ensure that the joint between the spray seat 100 and the power spray arm 200 is waterproof and sealed, so that the water-passable communication between the spray seat 100 and the power spray arm 200 can be realized.
  • This embodiment is based on the dishwasher spray arm described in the first embodiment above, and also has the following distinguishing technical features:
  • a shower is introduced in this embodiment, which includes a shower seat 100; at least two spray arms; On the seat 100, each spray arm can be combined with each other to generate self-rotation and/or revolution; the positioning rod 13 passes through each spray arm and is engaged with at least part of the gears in the planetary transmission gear mechanism 400, and is used for positioning each spray arm.
  • the spray arm remains in the set position.
  • the positioning rod By setting the positioning rod on the sprinkler, the positioning rod is sequentially passed through the preset through holes set on each spray arm and meshed with the corresponding gear of the transmission gear set to stop, so that the positioning rod can be plugged and installed.
  • Each spray arm of the sprinkler is limited to the initially set position, thereby achieving significant technical progress in positioning the initial position of the sprinkler and facilitating the transportation and installation of the sprinkler.
  • each spray arm is respectively provided with a positioning hole 14 through up and down, and the positioning rod 13 passes through the positioning hole 14 provided on each spray arm at the set position in turn, and the positioning rod 13 passes through at least the planet At least one gear mesh of the gear train 400 .
  • the planetary transmission gear mechanism 400 includes a first transmission gear set between the power spray arm 200 and the cleaning spray arm 300; the positioning rod 13 passes through the gear mesh of the first transmission gear set for blocking The transmission of the first gear set rotates.
  • the planetary transmission gear mechanism 400 includes a second transmission gear set between the power spray arm 200 and the spray seat 100; the positioning rod 13 passes through the gear mesh of the second transmission gear set to block the The transmission rotation of the second gear set; the positioning rod 13 blocks the transmission rotation direction of the second gear set, and is set opposite to the transmission rotation direction of the first gear set, and is used to prevent the planetary transmission gear mechanism 400 from running in the direction of forward rotation and reverse rotation. , and then realize the locking of the planetary transmission gear mechanism 400 in both directions of rotation.
  • the horizontal axes of the cleaning spray arm 300 and the power spray arm 200 are parallel up and down, so that the cleaning spray
  • the shower arm 300 and the power shower arm 200 are arranged in parallel to minimize the space occupied by the shower and further facilitate the transportation and installation of the shower.
  • the positioning rod 13 can also pass through the positioning hole provided on the spray seat 1 and penetrates up and down, so as to further enhance the restriction of the positioning rod to each spray arm and improve the installation convenience of the spray arm (not shown). noted in the accompanying drawings).
  • the positioning rod 13 is divided into an upper part 131 with a larger radial dimension and a lower part 132 with a smaller radial dimension; the radial dimension of the upper part 131 of the positioning rod 13 is larger than that of each spray arm.
  • the diameter of the positioning hole 14 is set; the radial dimension of the lower part 132 of the positioning rod 13 is smaller than or equal to the diameter of the positioning hole 14 set on each spray arm.
  • the lower part 132 of the positioning rod 13 passes through the gear engagement of the first transmission gear set between the power spray arm 200 and the cleaning spray arm 300, and is used to block the transmission rotation of the first gear set; positioning The lower part 132 of the rod 13 also passes through the gear meshing part of the second transmission gear set between the power spray arm 200 and the spray seat 100 for blocking the transmission rotation of the second gear set.
  • the first gear set includes an upper planetary gear 8 and a driven gear 11 that mesh with each other, and the driven gear 11 is fixed on the cleaning spray arm 300;
  • the second gear set Including, the lower planetary gear 9 and the fixed gear 10 meshing with each other, the fixed gear 10 is fixed on the spray seat 100;
  • the upper planetary gear 8 and the lower planetary gear 9 are fixed on the planetary gear carrier shaft 7, and the planetary gear carrier shaft 7 can be wound around
  • the shaft is installed on the power spray arm 200 in rotation;
  • the lower part 132 of the positioning rod 13 is located on the side of the positive rotation direction where the upper planetary gear 8 of the first gear set meshes, and is used to block the forward rotation transmission rotation of the first gear set;
  • the lower part 132 of the positioning rod 13 is located on the side of the reverse direction where the lower planetary gears of the second gear set mesh, and is used to block the reverse transmission rotation of the first gear set.
  • the upper side of the lower part 132 of the positioning rod 13 passes through the tooth groove on the forward rotation direction side of the meshing teeth of the upper planetary gear 8, or the upper side of the lower part 132 of the positioning rod 13 passes through the driven gear.
  • the gear 11 on the side of the positive rotation direction will engage the tooth groove;
  • the lower side of the lower part 132 of the positioning rod 13 passes through the meshed tooth groove on the reverse direction side of the meshing teeth of the lower planetary gear 9, or the lower part of the positioning rod 13
  • the lower side of 132 passes through the meshed tooth groove on the reverse direction side of the meshing teeth of the fixed gear 10 .
  • Positioning is achieved by engaging the positioning rod 13 with some gears of the first gear set and the second gear set respectively, and the tooth slots where the positioning rod 13 and the two groups of gear sets are engaged respectively are tooth slots on the sides of different rotation directions.
  • the rod 13 brakes and locks the two groups of gear sets in different rotation directions, and then achieves the locking and fixing of the cleaning spray arm 300 and the power spray arm 200 in the rotation direction.
  • This embodiment is based on the dishwasher spray arm described in the first embodiment above, and also has the following distinguishing technical features:
  • a shower is introduced in this embodiment, which includes: a spray seat 100; a power spray arm 200, which is rotatably installed on the spray seat 100; a cleaning spray arm 300, rotatably installed on the power spray arm 200; the planetary gear carrier shaft 7 penetrates up and down, and is installed in the installation hole 77 of the power spray arm 200, and the planetary gear carrier shaft 7 is equipped with an anti- Friction ring 71.
  • the planetary gear carrier shaft 7 By installing an anti-friction ring 71 between the planetary gear carrier shaft 7 and the power spray arm 200, the planetary gear carrier shaft 7 only contacts with the smooth inner wall of the anti-friction ring 71 when it rotates around the axis, thereby reducing the friction of the planetary gear carrier.
  • the installation hole 77 of the spray arm 200 is only in contact with the outer wall of the non-rotating anti-friction ring 71, which reduces the wear of the wall of the installation hole 77 and prolongs the service life of the sprayer.
  • the anti-friction ring 71 is a sleeve structure coaxially sleeved outside the planetary gear carrier shaft 7, and the outer circumference of the sleeve structure is provided with angularly spaced, radial rings.
  • the inner wall surfaces of the mounting holes 77 are fully in contact with each other, thereby increasing the friction force between them, and effectively preventing the anti-friction ring 71 from rotating around its axis.
  • the inner peripheral wall of the sleeve-shaped anti-friction ring 71 is a cylindrical surface of the light ring, so as to minimize the frictional force when the planet gear carrier shaft 7 rotates.
  • the radial dimensions of the outer contour formed by the protruding ends of the anti-friction ribs 72 are equal to or slightly larger than the diameter of the mounting hole 77, which is used to form an interference fit between the anti-friction ring 71 and the mounting hole 77, thereby realizing The anti-friction ring 71 can not be relatively rotated for the purpose of fastening installation.
  • the upper end of the planetary gear carrier shaft 7 is integrally provided with an upper planetary gear 8, and the upper planetary gear 8 is coaxially arranged with the planetary gear carrier shaft 7; the upper end surface of the anti-friction ring 71
  • the outer peripheral wall of the planetary gear carrier shaft 7 is provided with at least one ring of locking protrusions 74 protruding radially, and the radial dimension of the central through hole of the cylindrical anti-friction ring 71 Less than or equal to the radial dimension of the outer circumference of the locking protrusions 74, each locking protrusion 74 forms a snap connection with the inner peripheral hole wall of the anti-friction ring 71, and is used to form a fixed installation between the cylindrical anti-friction ring 71 and the planetary gear carrier shaft 7
  • the planetary gear carrier shaft 7 is provided with two rings of buckling protrusions 74, which respectively form a snap connection with the upper end and lower end of the central through hole of the cylindrical anti-friction ring 71.
  • the lower end of the planetary gear carrier shaft 7 is provided with a buckle portion 75 protruding downward, on which the lower planetary gear 9 is fixedly installed, and the lower planetary gear 9 is coaxial with the planetary gear carrier shaft 7 set up.
  • the central axis of the lower planetary gear 9 is provided with a non-circular hole 76
  • the buckle part 75 is inserted into the non-circular hole 76
  • a detachable fixed connection is formed between the buckle part 75 and the non-circular hole 76, so that the lower
  • the lower end of the planetary gear 9 and the planetary gear carrier shaft 7 forms a detachable, coaxially connected, non-rotatable connection.
  • the buckle part 75 includes two elastic pieces 751 arranged in parallel and at intervals. Corresponding fitting contact is used to form a mutual plug-in connection that cannot be rotated relative to each other; the outer walls of the two elastic pieces 751 are respectively provided with radial protrusions 752 protruding radially to the opposite side, which are used for the lower end surface of the lower planetary gear 9.
  • the two elastic pieces 751 can be elastically deformed under their own characteristics to narrow the gap between the two elastic pieces 751 and separate the radial protrusion 752 of the buckle part 75 from the lower planetary gear 9 .
  • a stop convex 78 protruding axially downward is provided at the non-circular hole 76 of the lower planetary gear 9.
  • the protrusion 78 is located in the middle of the non-circular hole 76, and the two elastic pieces 751 of the buckle part 75 are correspondingly inserted into the non-circular holes 76 on both sides of the stop protrusion 78; preferably, the stop protrusion 78 is vertically arranged up and down, and the stop protrusion
  • the lower end is provided with radially protruding horizontal protrusions, which are used to spread the two shrapnels 751 to both sides, so that the radial protrusions 752 provided on the shrapnels and the lower planetary gear 9 are buckled more stably.
  • This embodiment is based on the dishwasher spray arm described in the above embodiments, and also has the following distinguishing technical features:
  • a shower is introduced in this embodiment, which includes: a shower seat 100; Waterway 17; cleaning spray arm 300, rotatably installed on the power spray arm 200, with a second waterway 18 inside; the power spray arm 200 is provided with a first shield 15 for cleaning the power spray arm The connection with the rotation of the spray seat 100 is shielded; the cleaning spray arm is provided with a second shield 16 for shielding the rotation connection of the cleaning spray arm 300 and the power spray arm 200 .
  • the shielding coverings set on each spraying arm can respectively shield the transmission gear set at each spraying arm, effectively avoiding the spraying water of the dishwasher from spraying to the transmission gear.
  • the transmission gear mechanism of the sprinkler will not be interfered by spray water, cleaning foreign objects, etc., thereby ensuring the smooth operation of the sprinkler.
  • the upper end of the spray seat 100 is provided with a radially outwardly protruding fixed gear 10, and the power spray arm 200 is installed with the fixed gear 10 on the lower side.
  • the meshing lower planetary gear 9 ; the first shielding cover 15 at least covers the shielding fixed gear 10 and the lower planetary gear 9 .
  • the first shielding cover 15 is in the shape of a disc arranged coaxially with the fixed gear 10, and the radius of the disc-shaped first shielding cover 15 is greater than or equal to the sum of the radius of the fixed gear 10 and the diameter of the lower planetary gear 9 .
  • the lower side of the cleaning spray arm 300 is provided with a driven gear 11 protruding downwards and having a vertical axis.
  • the second shielding cover 16 is in the shape of a disc coaxially arranged with the driven gear 11, and the radius of the disc-shaped second shielding cover 16 is greater than or equal to the radius of the driven gear 11 and the diameter of the upper planetary gear 8 Sum.
  • a circle of ribs 19 bent vertically downwards are respectively provided on the outer peripheries of the first shade 15 and the second shade 16, and the lower ends of the ribs 19 are not higher than
  • the lower end face of the gear below the shield cover is used so that the shield cover can shield the side direction of the gear set below, preventing the spray water from the shower from splashing onto the planetary transmission gear mechanism from the side.
  • the power spray arm 200 is provided with a gear meshing area for the installation of the planetary gear transmission mechanism 400, and the gear meshing area is interlaced with the first waterway 17 provided in the power spray arm 200 Arranged so that the transmission gear of the sprinkler and the washing water flow channel are located in different areas, so that the transmission gear will not interfere with the water flow.
  • the power spray arm 200 is provided with a rotary joint 5 communicating with the spray seat 100, which is used to feed water into the first water channel 17 of the power spray arm 200 and communicate with the cleaning spray arm 300.
  • the water outlet joint 4 is used to flow the water in the first water channel 17 to the second water channel 18 of the cleaning spray arm 300; the rotary joint 5 and the water outlet joint 4 are eccentrically arranged, and the power spray arm 200 is located at the rotary joint 5 and the water outlet joint
  • the part between 4 is divided into left and right areas, and the left area has a channel forming part of the first waterway 17, which is used to connect the rotary joint 5 and the water outlet joint 4; the right area is the gear meshing area isolated from the first waterway 17 , which is provided with a mounting hole 77 for the planetary carrier shaft 7 to pass through.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

一种洗碗机喷淋器，包括，喷淋座（100）；动力喷淋臂（200），可绕喷淋座（100）中心轴旋转的安装于喷淋座（100）上；清洗喷淋臂（300），可绕自身所设喷淋转轴旋转的安装于动力喷淋臂（200）上；行星齿轮架（400），与喷淋座（100）中心轴偏心设置的安装于动力喷淋臂（200）上；行星齿轮架（400）上设有分别与喷淋座（100）上所设的固定齿轮（10）、和清洗喷淋臂（300）上所设的从动齿轮（11）相啮合的行星齿轮（8，9）。

Description

一种洗碗机喷淋器及洗碗机 技术领域
本发明属于洗碗机技术领域，具体涉及一种洗碗机用的喷淋器结构。
背景技术
洗碗机是当前较为常见的电器之一，用于厨房中在饭后对碗盘等餐具的洗涤，而且还能够用于对一些水果和蔬菜等进行洗涤，极大地方便了人们的生活，能够在很大程度上将人们从较为频繁的手动洗涤碗盘等餐具及水果和蔬菜的劳动中解放出来。
在当前的洗碗机的结构中，洗碗机通常采用喷淋臂对餐具或水果蔬菜等洗涤物实行喷淋洗涤。洗碗机的喷淋臂上通常设置多个出水口，在循环泵体的带动作用下，将洗涤水引入洗碗机的喷淋臂后再喷射到餐具或水果蔬菜上。喷淋臂的出水口喷射的水流的截面形状往往与出水口的形状一致，喷出后多为柱状。这样在喷淋臂旋转时，在待洗餐具或水果蔬菜等所在区域的高度范围的各个平面上形成对应喷淋臂的出水口的位置的多个环形。
但是由于洗碗机的内胆底部通常为矩形或正方形，而当前的常规洗碗机的喷淋臂，在工作时喷射的面积通常呈圆形，对于洗碗机的内胆的四个角部的餐具等洗涤物无法进行有效的喷淋洗涤，因而会影响洗涤效果。
有鉴于此，特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种喷淋器，以解决现有的喷淋器的喷淋水无法覆盖清洗内胆拐角区域的问题，以实现对洗碗机内胆中拐角区域进行覆盖清洗的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明提供了一种洗碗机喷淋器，包括，喷淋座；动力喷淋臂，可绕喷淋座中心轴旋转的安装于喷淋座上；清洗喷淋臂，可绕自身所设喷淋转轴旋转的安装于动力喷淋臂上；行星齿轮架，与喷淋座中心轴偏心设置的安装于动力喷淋臂上；行星齿轮架上设有分别与喷淋臂上所设的固定齿轮、和清洗喷淋臂上所设的从动齿轮相啮合的行星齿轮。
进一步，喷淋座上设有沿中心轴延伸、内部限定出水路的安装接头，安装接头上同轴设置有与喷淋座相固定或一体设置的固定齿轮；动力喷淋臂上设有与喷淋座中心轴同轴设置、对应可绕轴旋转的安装于喷淋座的安装接头中的第一转轴部。
进一步，第一转轴部相对的两侧动力喷淋臂分别为第一部分和第二部分；动力喷淋臂的轴向较长的第一部分上设有至少一个驱动喷淋孔；动力喷淋臂的轴向较短的第二部分安装有可绕喷淋转轴旋转的清洗喷淋臂；喷淋转轴与中心轴相平行并偏心设置；优选的，驱动喷淋孔设于动力喷淋臂的轴向延伸长度较长的第一部分的端部。
进一步，清洗喷淋臂的中部设有沿轴线向下凸出的、构成喷淋转轴的、对应可绕轴旋转的安装于动力喷淋臂第二部分端部的第二转轴部；第二转轴部上设有同轴设置的、与清洗喷淋臂相固定或一体设置的从动齿轮。
进一步，行星齿轮架，包括与喷淋座中心轴相平行设置的行星齿轮架轴；行星齿轮架轴可相对绕轴旋转的安装于动力喷淋臂的第二部分的中部；行星齿轮架轴上固定安装、或一体设置有行星齿轮，行星齿轮分别与从动齿轮和固定齿轮相啮合。
进一步，行星齿轮架轴的上下两端分别凸出于动力喷淋臂，并分别固定安装、或一体设置有上行星齿轮和下行星齿轮；上行星齿轮与清洗喷淋臂上设置的从动齿轮相啮合；下行星齿轮与喷淋座上设置的固定齿轮相啮合。
进一步，喷淋座、动力喷淋臂和清洗喷淋臂自下向上依次间隔排布；动力喷淋臂和清洗 喷淋臂均水平延伸；喷淋座、动力喷淋臂和清洗喷淋臂的中心轴线均竖直设置。
进一步，喷淋座的安装接头所形成水路经第一转轴部与动力喷淋臂内所设的第一水路相连通，动力喷淋臂内所设的第一水路经第二转轴部与清洗喷淋臂内所设的第二水路相连通。
进一步，清洗喷淋臂上排布有多个清洗喷淋孔，各清洗喷淋孔与第二转轴部的轴线距离不等设置。
本发明还公开了一种洗碗机，其包括：内胆；内胆内安装有上述的一种洗碗机喷淋器，洗碗机喷淋器的喷淋座固定安装于内胆内壁上。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
本发明通过将动力喷淋臂和清洗喷淋臂之间经行星传动齿轮机构相连，以实现了经行星轮系将动力喷淋臂的旋转以设定的转停比传递至清洗喷淋臂，进而带动清洗喷淋臂以对应可控的转向和转速绕轴旋转，进而实现了动力喷淋臂驱动清洗喷淋臂旋转的效果；同时，由于采用行星传动齿轮机构进行传动，使得动力喷淋臂和清洗喷淋臂的转轴相偏心排布，令清洗喷淋臂的端部轨迹形成类方形，以达到喷淋器可对洗碗机内胆中拐角处进行相应清洗的目的。
还有，现有的喷淋器的不同喷淋臂之间的组装时，需要将喷淋臂之间的相连处需要设置旋转副；同时，由于不同喷淋臂之间一般还需进行水路连通，而为了简化设计，一般都是在喷淋臂相铰接处设置水路连通。因此，如何在尽量保证水流密封性的前提下，使得喷淋臂件相连处的旋转轴不会产生偏移，就成了研发热点。本发明要解决上述技术问题，还提供了一种喷淋臂间的旋转密封连接结构，以实现不同喷淋臂之间旋转连接处进行防偏心的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明提供了一种喷淋臂间的旋转密封连接结构，设置于动力喷淋臂和清洗喷淋臂之间；清洗喷淋臂上设有进水接头；动力喷淋臂上设有出水接头，出水接头可绕轴相对旋转的插入进水接头内；清洗喷淋臂上设有插入进水接头中、同轴设置的自转转轴，动力喷淋臂的出水接头上设有套设于自转转轴外周、对其进行轴向偏移定位的定位环。
进一步，自转转轴与进水接头、出水接头均同轴设置，自转转轴的一端与清洗喷淋臂固定相连或一体设置、另一端对应插入动力喷淋臂内部水路上所设的转轴定位槽中。
进一步，出水接头上设有伸入清洗喷淋臂内部水路中的凸出部，凸出部的端部设有定位环，自转转轴穿过定位环内周围成的定位孔、且自转转轴的外周侧壁与定位环的内周孔壁对应贴合接触。
进一步，自转转轴上设有定位部，定位部对应处于定位环内，定位部的外周径向尺寸大于自转转轴的其他部分；优选的，定位部的下端部、与定位环对应相接处设有锥形面。
进一步，自转转轴的径向尺寸小于出水接头的内周壁径向尺寸，自转转轴与出水接头之间的间隙构成供水流在清洗喷淋臂与动力喷淋臂之间流动的连通水路。
进一步，出水接头插入清洗喷淋臂内部水路的端部设有多个间隔角度排布的凸出筋，各凸出筋的上端部相连以共同围成圆环形的定位环。
进一步，相邻凸出筋之间相距间隙，所述间隙构成镂空开口，用于将出水接头和自转转轴之间的水路中的水流导出；镂空开口将动力喷淋臂内的第一水路和清洗喷淋臂内的第二水路相导通。
进一步，出水接头插入进水接头内部，出水接头外壁与进水接头内壁相接处设有至少一圈密封圈。
进一步，出水接头上设有向外径向凸出的外卡凸、进水接头上设有向内径向凸出的内卡凸，出水接头插入进水接头内部时，外卡凸和内卡凸对应卡扣相连，用于出水接头插入进水接头内部后进行卡扣固定。
同时，本发明还提供一种喷淋器，以解决现有的喷淋器的喷淋水无法覆盖清洗内胆拐角区域的问题，以实现对洗碗机内胆中拐角区域进行覆盖清洗的目的。
为实现上述发明目的，本发明还公开了一种洗碗机，其包括：内胆；内胆内安装有喷淋 器，喷淋器采用上述的喷淋臂间的旋转密封连接结构。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
通过在喷淋臂相连的转轴处设置定位环，以使得自转转轴被限制于定位环内，不仅可利用定位环上所设的镂空部过水，实现不同喷淋臂之间的洗涤水相互流通；还能使得定位环对自转转轴进行定位，防止自转转轴偏移，进而保证清洗喷淋臂不会产生偏心旋转。
还有，现有的喷淋器的喷淋臂都是安装于喷淋座上，且安装处一般不仅设置为转动副，还需使得喷淋座处的供水经相连处导流至喷淋臂内的水路中；这就使得喷淋臂和喷淋座的安装处不仅需要实现相对旋转，还要进行水封处理，就对喷淋臂和喷淋座的安装结构的抗偏心位移就提出了很高的要求。本发明要解决上述技术问题，还提供一种喷淋臂和喷淋座间的安装结构，以实现对洗碗机的喷淋臂提供防偏心定位安装的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
一种喷淋臂和喷淋座间的安装结构，设置于动力喷淋臂与喷淋座之间；喷淋座上设有安装接头，动力喷淋臂上设有旋转接头，旋转接头可绕轴旋转的对应插入安装接头内；旋转接头的外壁上设有径向凸出的至少一圈限位环，限位环的外周与旋转接头内壁相贴合接触。
进一步，旋转接头的两端分别各设有一圈径向凸出的限位环，两限位环的外周分别与安装接头的内壁对应部分相贴合接触。
进一步，旋转接头自上向下对应插入安装接头中，安装接头的下端设有径向凸出的环形止挡部，旋转接头的下端与环形止挡部的上支撑面相接，用于将旋转接头插接于安装接头后、被支撑于环形止挡部上侧。
进一步，旋转接头为自上向下逐渐收窄径向尺寸的锥形接头，旋转接头的上端与动力喷淋臂的下表面固定相连、或一体设置，旋转接头内部孔道与动力喷淋臂内部的第一水路相连通；旋转接头同轴插入安装接头内，旋转接头的下端与安装接头内侧壁所设的环形止挡部相支撑接触。
进一步，安装接头的内壁分为多个不同径向尺寸的孔段，各孔段的径向尺寸自上向下依次递减的设置；最上端孔段的内壁与旋转接头上端的上限位环的外周相贴合接触；最下端孔段的内壁与旋转接头下端的下限位环的外周相贴合接触；优选的，相邻孔段的连接处均设有锥形过渡面。
进一步，安装接头的最上端设有径向向内凸出的环形卡凸，环形卡凸的内周径向尺寸小于旋转接头上设置的上限位环的外周径向尺寸；优选的，环形卡凸的内周径向尺寸大于等于旋转接头上设置的下限位环的外周径向尺寸。
进一步，环形止挡部包括，第一止挡部，自安装接头的内壁径向向内凸出、水平延伸的、呈环状；第二止挡部，自环形第一止挡部的内周向上凸出、竖直延伸的、呈筒状；第一止挡部的外周侧与安装接头固定相连、或一体相连；第二止挡部的上端构成上支撑面，用于与旋转接头的下端支撑接触。
进一步，安装接头与旋转接头相接触设有至少一道密封圈，用于隔离流经水流自相接触处外溢。
进一步，上、下限位环的外周与安装接头内壁之间分别设有密封圈；和/或，旋转接头下端与安装接头的环形止挡部的相接处设有至少一道密封圈。
同时，本发明还提供一种喷淋器，以解决现有的喷淋器的喷淋水无法覆盖清洗内胆拐角区域的问题，以实现对洗碗机内胆中拐角区域进行覆盖清洗的目的。
为实现上述发明目的，本发明还公开了一种洗碗机，其包括：内胆；内胆内安装有喷淋器，喷淋器采用上述的所述的喷淋臂和喷淋座间的安装结构。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
通过在旋转接头外壁设置至少一圈径向凸出的限位环，以使得旋转接头经限位环与安装接头相限位接触，不仅缩小了喷淋座与喷淋臂相接触的面积，使得喷淋臂自转时的摩擦减小； 还使得，旋转接头可经限位环与安装接头内壁在各个方位上均紧密贴合，进一步保证了旋转接头旋转过程中偏心位移的产生，有效保证了动力喷淋臂转动的稳定性。
还有，由于现有的喷淋器一般都是设置多个喷淋臂，各喷淋臂之间具有不同的相对位置，在喷淋器安装时，如果喷淋臂之间不是位于设定位置，会导致喷淋臂在内胆中的运动路径不同，使得喷淋器无法发挥最大的喷淋清洗效果；因此，如何设置一种喷淋器的不同喷淋臂之间的定位结构，使得喷淋器可保持与设定的初始位置，以使喷淋器可以设定位置状态进行快速装配，就成了急需解决的技术问题。本发明要解决上述技术问题还提供了一种喷淋器，以实现对各喷淋臂之间相对位置进行预设定位的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明提供了一种喷淋器，其包括，喷淋座；至少两个喷淋臂，安装于喷淋座上；各喷淋臂之间经行星传动齿轮机构相连，各喷淋臂可产生自转和/或公转；定位杆，穿过各喷淋臂并与行星传动齿轮机构中的至少部分齿轮相止挡啮合，用于将各喷淋臂保持于设定位置。
进一步，各喷淋臂上分别设有上下贯通的定位孔，定位杆依次穿过处于设定位置的各喷淋臂上所设的定位孔，定位杆至少穿过行星传动齿轮机构的至少一处齿轮啮合处。
进一步，行星传动齿轮机构包括，动力喷淋臂和清洗喷淋臂之间的第一传动齿轮组；定位杆穿过第一传动齿轮组的齿轮啮合处，用于阻挡第一齿轮组的传动旋转。
进一步，行星传动齿轮机构包括，动力喷淋臂和喷淋座之间的第二传动齿轮组；定位杆穿过第二传动齿轮组的齿轮啮合处，用于阻挡第二齿轮组的传动旋转；定位杆阻挡第二齿轮组的传动旋转方向、与阻挡第一齿轮组的传动旋转方向相反设置。
进一步，定位杆还穿过喷淋座上所设的、上下贯通的定位孔。
进一步，定位杆分为径向尺寸径较大的上部分、和径向尺寸较小的下部分；定位杆的下部分的径向尺寸小于等于各喷淋臂上所设定位孔的孔径。
进一步，定位杆的下部分穿过动力喷淋臂和清洗喷淋臂之间的第一传动齿轮组的齿轮啮合处，用于阻挡第一齿轮组的传动旋转；定位杆的下部分还穿过动力喷淋臂和喷淋座之间的第二传动齿轮组的齿轮啮合处，用于阻挡第二齿轮组的传动旋转；优选的，定位杆的上部分的径向尺寸大于各喷淋臂上所设定位孔的孔径，定位杆的上部分受孔径较小的定位孔的支撑处于清洗喷淋臂的上方。
进一步，第一齿轮组包括，相互啮合的上行星齿轮和从动齿轮，从动齿轮固定于清洗喷淋臂上；第二齿轮组包括，相互啮合的下行星齿轮和固定齿轮，固定齿轮固定于喷淋座上；上行星齿轮和下行星齿轮固定于行星齿轮架轴上，行星齿轮轮架轴可绕轴旋转的安装于动力喷淋臂上；定位杆的下部分的上端位于第一齿轮组的上行星齿轮啮合处的正转方向侧，用于阻挡第一齿轮组的正转传动旋转；定位杆的下部分的下端位于第二齿轮组的下行星齿轮啮合处的反转方向侧，用于阻挡第一齿轮组的反转传动旋转。
进一步，定位杆的下部分穿过上行星齿轮、或从动齿轮的啮合齿的正转方向侧的将啮合齿槽；定位杆的下部分穿过下行星齿轮、或固定齿轮的啮合齿的反转方向侧的已啮合齿槽；优选的，定位杆的上部分的径向尺寸大于上行星齿轮、或从动齿轮的齿槽的宽度，定位杆的上部分受上行星齿轮、或从动齿轮的上端面支撑处于上行星齿轮、或从动齿轮的上方。
本发明还提供了一种洗碗机，洗碗机的内胆中安装有上述任一所述的喷淋器。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
通过在喷淋器上设置定位杆，将定位杆依次穿过各喷淋臂上所设的预设通孔、以及与传动齿轮组的对应齿轮相啮合止挡，以达到定位杆插接安装后将喷淋器的各喷淋臂限制于初设的设定位置，进而达到对喷淋器初始位置进行定位、便于喷淋器运输及安装的显著技术进步。
还有，本申请为了实现不同喷淋臂之间在不同轨迹上移动，需要在一喷淋臂上设置行星轮架，以驱动另一喷淋臂产生公转和自转同步运行，以使得其的轨迹可以覆盖内胆的角部区域；但是，洗碗机的喷淋臂上设置行星轮架时，行星轮架会相对喷淋臂产生绕轴自转，因此， 如何在保证行星架自转安装的前提下，降低行星轮架因旋转而对喷淋臂安装孔的磨损，就成了急需解决的技术问题。本发明要解决上述技术问题在于克服现有技术的不足，还提供了一种喷淋器，以实现喷淋臂上安装的行星轮架放摩擦损耗的目的。
为实现上述发明目的，本发明采用技术方案的基本构思是：
一种喷淋器，其包括：喷淋座；动力喷淋臂，可旋转的安装于喷淋座上；清洗喷淋臂，可旋转的安装于动力喷淋臂上；行星齿轮架轴，上下贯穿的、可绕轴自转的安装于动力喷淋臂的安装孔中；行星齿轮架轴外套设有防摩擦环。
进一步，防摩擦环为同轴套设于行星齿轮架轴外的套筒结构，套筒结构的外周设有间隔角度排布的、径向凸出的多个防摩擦凸筋；各防摩擦凸筋的凸出端均与安装孔的孔壁相限位接触。
进一步，各防摩擦凸筋的凸出端构成的外轮廓的径向尺寸等于或稍大于安装孔孔径，用于防摩擦环与安装孔之间形成过盈配合。
进一步，行星齿轮架轴的上端一体设置有上行星齿轮，上行星齿轮与行星齿轮架轴同轴设置；防摩擦环的上端面设有径向凸出的一圈挡筋，挡筋的外周径向尺寸大于安装孔的孔径；优选的，挡筋的上端面设有向上凸出的一圈凸出部，挡筋上端面与上行星齿轮的下端面间受凸出部作用而形成间隔。
进一步，行星齿轮架轴的外周壁设有径向凸出的至少一圈卡凸，筒状防摩擦环的中心通孔的径向尺寸小于等于卡凸的外周径向尺寸，各卡凸与防摩擦环的内周孔壁之间分别形成卡扣连接，用于筒状防摩擦环与行星齿轮架轴之间在轴向形成固定；优选的，行星齿轮架轴上设有两圈卡凸，分别与筒状防摩擦环的中心通孔的上端和下端处分别形成卡扣连接。
进一步，行星齿轮架轴的下端设有向下凸出延伸的卡扣部，卡扣部上固定安装有下行星齿轮，下行星齿轮与行星齿轮架轴同轴设置。
进一步，下行星齿轮的中心轴处设有非圆孔，卡扣部插入非圆孔，卡扣部与非圆孔之间形成可拆卸的、无法相对绕轴旋转的连接。
进一步，卡扣部包括相平行、间隔排布的两弹片，两弹片的外周分别与卡扣部的非圆孔的孔壁相对应贴合接触，用于形成无法相对旋转的相互插接连接；两弹片的外壁分别设有径向凸起，用于对下行星齿轮的下端面进行卡扣相接；两弹片可在自身特性下产生弹性变形，用于将两弹片之间的间隙缩窄、令卡扣与下行星齿轮相分离。
进一步，在下行星齿轮的非圆孔处设有一轴向向下凸出的止挡凸，止挡凸位于非圆孔的中部；卡扣部插入非圆孔时，止挡凸对应插入卡扣部的两弹片之间的间隙中。
本发明还提供了一种洗碗机，洗碗机的内胆中安装有上述任一所述的喷淋器。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
通过将行星齿轮架轴与动力喷淋臂之间加装防摩擦环，以使得行星齿轮架轴绕轴自转时仅与防摩擦环的光滑内壁相接触，进而减小了行星齿轮架轴绕轴旋转时的摩擦力；同时，由于防摩擦环的加装，防摩擦环在自身外壁较大的摩擦阻力作用下不会随行星齿轮架轴跟转，使得动力喷淋臂的安装孔仅与不会产生旋转的防摩擦环外壁相接，减少了安装孔的孔壁的磨损，进而延长了喷淋器的使用寿命。
还有，在喷淋器的不同喷淋臂处一般分别设有传动结构，但是由于不同喷淋臂的喷淋孔都会喷射处喷淋水，使得喷淋水会对不同的传动结构进行干涉；尤其是喷淋水对餐具上冲洗的异物等若落至传动结构处，极易造成传动结构卡死情况的发生。因此，如何对不同喷淋臂处所设的传动结构、和旋转连接处进行放异物进入，就成了急需解决的技术问题。本发明要解决上述技术问题还提供了一种喷淋器，以实现对不同喷淋臂进行遮挡，进而防止异物坠落至不同喷淋臂的传动结构处。
为实现上述发明目的，本发明采用技术方案的基本构思是：
本发明提供了一种喷淋器，其包括：喷淋座；动力喷淋臂，可旋转的安装于喷淋座上；清洗喷淋臂，可旋转的安装于动力喷淋臂上；动力喷淋臂上设有第一遮挡罩，用于对动力喷淋臂和喷淋座的旋转相连处进行遮挡；清洗喷淋臂上设有第二遮挡罩，用于对清洗喷淋臂和动力喷淋臂的旋转相连处进行遮挡。
进一步，喷淋座的上端设有径向向外凸出的固定齿轮，动力喷淋臂上安装有处于下侧的、与固定齿轮相啮合的下行星齿轮；第一遮挡罩至少覆盖遮挡固定齿轮和下行星齿轮。
进一步，第一遮挡罩呈与固定齿轮同轴设置的圆盘状，圆盘状第一遮挡罩的半径尺寸大于等于固定齿轮的半径和下行星齿轮的直径之和。
进一步，清洗喷淋臂的下侧设有向下凸出的、竖直设置轴线的从动齿轮，动力喷淋臂上安装有处于上侧的、与从动齿轮相啮合的上行星齿轮；第二遮挡罩至少覆盖遮挡从动齿轮和上行星齿轮。
进一步，第二遮挡罩呈与从动齿轮同轴设置的圆盘状，圆盘状第二遮挡罩的半径大于等于从动齿轮的半径和上行星齿轮的直径之和。
进一步，遮挡罩的外周分别设有一圈向下竖直弯折的挡边，挡边的下端不高于遮挡罩下方齿轮的下端面。
进一步，动力喷淋臂上设有供行星齿轮系安装的齿轮啮合区域，齿轮啮合区域与动力喷淋臂内所设的第一水路相交错排布。
进一步，动力喷淋臂上设有与喷淋座相连通的旋转接头，与清洗喷淋臂相连通的出水接头；旋转接头和出水接头偏心设置，动力喷淋臂上处于旋转接头和出水接头之间的部分划分为左右区域，左区域内具有构成部分第一水路的通道，用于将旋转接头和出水接头相连通；右区域为与第一水路相隔离的齿轮啮合区域，其上设有供行星齿轮架轴穿过安装的安装孔。
进一步，出水接头与第一遮挡罩相交错设置。
本发明还提供了一种洗碗机，洗碗机的内胆中安装有上述的喷淋器。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果：
通过在各喷淋臂上分别设置遮挡罩，以实现各喷淋臂上设置的遮挡罩分别对各喷淋臂处所设传动齿轮组进行遮挡，有效避免了洗碗机的喷淋水喷射至传动齿轮处，令喷淋器的传动齿轮机构不会受喷淋水、清洗异物等干涉，进而保证了喷淋器的平稳运行。
同时，本发明结构简单，方法简洁，效果显著，适宜推广使用。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1是本发明实施例中喷淋器的原理示意图；
图2是本发明实施例中喷淋器的结构示意图；
图3是本发明实施例中喷淋器的爆炸结构示意图；
图4是本发明实施例中图3的A处的放大结构示意图；
图5是本发明实施例中喷淋器的另一视角的爆炸结构示意图；
图6是本发明实施例中喷淋器的侧视结构示意图；
图7是本发明实施例中图6的的B-B的截面结构示意图；
图8是本发明实施例中图7的C处的放大结构示意图；
图9和10是本发明实施例中行星齿轮组不同视角的爆炸结构示意图；
图11是本发明实施例中行星齿轮组的截面结构示意图。
图中主要元件说明：100、喷淋座；200、动力喷淋臂；300、清洗喷淋臂；400、行星传动齿轮机构；1、安装接头；2、过滤网；3、进水接头；4、出水接头；5、旋转接头；6、喷淋孔；7、行星齿轮架轴；8、上行星齿轮；9、下行星齿轮；10、固定齿轮；11、从动齿轮；13、定位杆；14、定位孔；15、第一遮挡罩；16、第二遮挡罩；17、第一水路；18、第二水路；19、挡边；41、定位环；42、自转转轴；43、转轴定位槽；441、外卡凸；442、内卡凸；45、凸出筋；46、镂空开口；411、定位部；412、锥形面；51、限位环；52、环形止挡部；53、环形卡凸；511、上限位环；512、下限位环；521、第一止挡部；522、第二止挡部；61、驱动喷淋孔；62、清洗喷淋孔；71、防摩擦环；；72、防摩擦凸筋；73、挡筋；74、卡凸；75、卡扣部；76、非圆孔；77、安装孔；78、止挡凸；751、弹片；752、径向凸起；131、上部分；132、下部分。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“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发明和简化描述，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发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1至11所示，本发明实施例中，介绍一种洗碗机的喷淋器结构，所述洗碗机喷淋器结构安装于洗衣机内胆中，喷淋器结构将洗碗机的洗涤水经喷淋孔6向内胆中喷洒，用于对内胆中所盛放餐具进行洗涤。本发明中，喷淋器结构包括，动力喷淋臂200和清洗喷淋臂300；动力喷淋臂200可绕轴旋转的安装于喷淋座100上，动力喷淋臂200上设有驱动喷淋孔61，在驱动喷淋孔61向外喷射水流时，动力喷淋臂200受喷射水流的反作用力推动而绕轴自转；清洗喷淋臂300也可绕轴旋转，且动力喷淋臂200经行星传动齿轮机构400与清洗喷淋臂300相连，以将动力喷淋臂200的旋转作用力经行星传动齿轮机构400传递、而带动清洗喷淋臂300绕轴旋转，在清洗喷淋臂300旋转过程中，利用清洗喷淋臂300上所设的清洗喷淋孔62向洗碗机内胆中喷射清洗水流、对洗碗机内胆中放置的餐具进行清洗。
本发明通过将动力喷淋臂和清洗喷淋臂之间经行星传动齿轮机构相连，以实现了经行星轮系将动力喷淋臂的旋转以设定的转停比传递至清洗喷淋臂，进而带动清洗喷淋臂以对应可控的转向和转速绕轴旋转，进而实现了动力喷淋臂驱动清洗喷淋臂旋转的效果；同时，由于采用行星传动齿轮机构进行传动，使得动力喷淋臂和清洗喷淋臂的转轴相偏心排布，令清洗喷淋臂的端部轨迹形成类方形，以达到喷淋器可对洗碗机内胆中拐角处进行相应清洗的目的。
实施例一
如图1至图11所示，本实施例中介绍了一种洗碗机喷淋器，包括，喷淋座100，所述喷淋座100限定出水流通道，喷淋座100自身构成的出水流通道的两端分别与洗碗机进水结和动力喷淋臂200自身内部水路相连通；所述喷淋座100的一端设有与所述水流通道连通的动力喷淋臂200，可绕喷淋座100中心转轴旋转的安装于喷淋座100上，动力喷淋臂200可在自身喷淋出水的反作用力下产生绕轴自转；清洗喷淋臂300，可绕自身所设喷淋转轴旋转的 安装于动力喷淋臂200上；行星传动齿轮机构400，将动力喷淋臂200和清洗喷淋臂300相连，用于将动力喷淋臂200的绕轴自转的转动作用力传递至清洗喷淋臂300，带动清洗喷淋臂300产生绕轴旋转。
本实施例中，所述喷淋座100的安装接头1的中部的外周壁上设有径向凸出的具有一定覆盖面积的过滤网2，过滤网对喷淋器下方区域进行遮挡，以对下落清洗水中的滤渣进行拦截过滤，避免滤渣落入喷淋器下方的集水盒中。
如图1所示，本实施例中，所述的行星传动齿轮机构400包括，行星齿轮架，与喷淋座100中心轴偏心设置的安装于动力喷淋臂200上；行星齿轮架上设有分别与喷淋座100上所设的固定齿轮10、和清洗喷淋臂300上所设的从动齿轮11相啮合的行星齿轮，以经两组啮合齿轮组，将动力喷淋臂200的绕轴旋转作用力作用于清洗喷淋臂300上，达到带动清洗喷淋臂300产生绕自身喷淋转轴自转、同时绕喷淋座100的中心转轴公转的目的。
通过上述设置，使得清洗喷淋臂300不仅可以受动力喷淋臂200带动旋转，还能使得清洗喷淋臂300在自转的同时可以保持公转，令清洗喷淋臂的端部喷射的水流可以覆盖洗碗机内胆的拐角处，进而提升喷淋器对洗碗机内胆中餐具的清洗效果。
如图1至图8所示，本实施例中，喷淋座100上设有与中心转轴同轴设置的、与喷淋座100相固定或一体设置的固定齿轮10；喷淋座100上设有上下竖直延伸的安装接头1，安装接头1沿喷淋座100的中心转轴延伸，安装接头1的下端构成进水口，用于与洗碗机的进水结构相连通，例如：进水口与洗碗机的集水盘相连通，用于向喷淋器供水。动力喷淋臂200上设有与喷淋座100中心转轴同轴设置、对应可绕轴旋转的安装于喷淋座100的安装结构1上的旋转接头5；所述的旋转接头5构成动力喷淋臂200绕喷淋座100旋转的第一转轴部。
本实施例中，旋转接头5相对的两侧动力喷淋臂200分别为第一部分和第二部分；动力喷淋臂200的轴向较长的第一部分上设有至少一个驱动喷淋孔61；动力喷淋臂200的轴向较短的第二部分安装有可绕喷淋转轴旋转的清洗喷淋臂300；喷淋转轴与中心转轴相平行并偏心设置；优选的，动力喷淋臂200的轴向延伸长度较长的第一部分的端部设有至少一个驱动喷淋孔61；所述的驱动喷淋孔61的开孔朝向与动力喷淋臂200的轴向相垂直、沿动力喷淋臂200的转动方向的切向延伸，以实现动力喷淋臂200的喷射出水可对其施加尽量大的反向驱动力。
本实施例中，清洗喷淋臂300的中部设有沿轴线向下凸出的、构成喷淋转轴的、对应可绕轴旋转的安装于动力喷淋臂200的第二部分的端部的第二转轴部；第二转轴部上设有同轴设置的、与清洗喷淋臂300相固定或一体设置的从动齿轮11。如图1至图11所示，所述的清洗喷淋臂的下侧设有向下凸出延伸的进水接头3，进水接头3构成上述的第二转轴部。
如图1至图11所示，本实施例中，行星齿轮架，为与喷淋座100的中心转轴相平行设置的行星齿轮架轴7；行星齿轮架轴7可相对绕自身轴线旋转的安装于动力喷淋臂200的第二部分的中部；行星齿轮架轴7上固定安装、或有一体设置有两行星齿轮，两行星齿轮分别与从动齿轮11和固定齿轮10相啮合。
本实施例中，行星齿轮架轴7的上下两端分别外凸出于动力喷淋臂200，并分别固定安装、或一体设置有上行星齿轮8和下行星齿轮9；上行星齿轮8与清洗喷淋臂300上设置的从动齿轮11相啮合；下行星齿轮9与喷淋座100上设置的固定齿轮10相啮合。
如图1至图11所示，本实施例中，喷淋座100、动力喷淋臂200和清洗喷淋臂300自下向上依次间隔排布；动力喷淋臂200和清洗喷淋臂300均水平延伸；喷淋座100、动力喷淋臂200和清洗喷淋臂300的中心轴线均竖直设置，且两两相互偏心的排布。
本实施例中，动力喷淋臂200的第一部分的轴向延伸长度小于清洗喷淋臂300的轴线延伸长度的一半；优选的，动力喷淋臂200的轴向延伸长度小于清洗喷淋臂300的轴线延伸长度的一半。
本实施例中，清洗喷淋臂300为相对喷淋转轴对称设置的对称结构，或者，清洗喷淋,300 为相对喷淋转轴非对称设置的非对称结构；优选的，如图2所示，清洗喷淋臂300为自喷淋转轴处向一侧延伸长度较长、向另一侧延伸长度较短的喷淋臂结构，以尽量增大清洗喷淋臂300端部的长度，令其两端分别在不同的路径轨迹上移动，进而提升清洗喷淋臂300的喷淋水覆盖范围；进一步优选的，清洗喷淋臂300相对径向轴线对称设置，且在清洗喷淋臂300的外周间隔排布有多个清洗喷淋孔62，以实现向外喷淋清洗水的效果。
如图1至图11所示，本实施例中，喷淋器工作时，具体如下：
喷淋器的动力喷淋臂200上的动力喷淋孔61喷射水流，带动动力喷淋臂200绕安装接头1的中线轴线，以转速n1，沿顺时针(或逆时针)旋转；
安装在动力喷淋壁上的行星齿轮架轴7和清洗喷淋臂300均随动力喷淋臂200共同绕安装接头1的中线轴线，以转速n1，沿顺时针(或逆时针)公转；
同时，行星齿轮架轴7上所安装的下行星齿轮9与安装接头1上所固定设置的固定齿轮10相啮合，使得下行星齿轮9在绕安装接头1的中线轴线公转过程中，受啮合齿轮的作用，而产生绕行星齿轮架轴7的轴线，以转速n2，沿顺时针(或逆时针)自转旋转；
而下行星齿轮9、行星齿轮架轴7和上行星齿轮8共同绕行星齿轮架轴7的轴线，以转速n2，沿顺时针(或逆时针)共同自转旋转；
然后，由于下行星齿轮9与清洗喷淋臂300上所固定安装的从动齿轮11啮合，而带动清洗喷淋臂300绕自身的进水接头3的轴线，以转速n3，沿逆时针(或顺时针)自转旋转。
从而，实现了喷淋器工作过程中，清洗喷淋臂300的旋转轴(进水喷头3)绕安装接头1的轴线以n1公转的同时，清洗喷淋臂300同步绕旋转轴(进水喷头3)自身轴线以n3自转；同时，清洗喷淋臂300的自转方向和公转方向为相反设置，进而实现了清洗喷淋臂300上所设清洗喷淋孔62的运动轨迹近似方形，达到了清洗喷淋臂300所喷射清洗水流可对洗碗机的方形内胆中角部区域覆盖清洗的效果。
实施例二
本实施例基于上述实施例一所述的洗碗机喷淋臂，还具有如下区别技术特征：
如图1至图11所示，本实施例中介绍了一种喷淋臂间的旋转密封连接结构，设置于动力喷淋臂200和清洗喷淋臂300之间；清洗喷淋臂300上设有进水接头3；动力喷淋臂200上设有出水接头4，出水接头4可绕轴相对旋转的插入进水接头3内，以使得清洗喷淋臂可绕进水接头轴线旋转的安装于动力喷淋臂200上；清洗喷淋臂300上设有插入进水接头3中、同轴设置的自转转轴42，动力喷淋臂200的出水接头4上设有套设于自转转轴42外周、对其进行轴向偏移定位的定位环41。
通过在喷淋臂相连的转轴处设置定位环41，以使得自转转轴42被限制于定位环41内，不仅可利用定位环41上所设的镂空部过水，实现不同喷淋臂之间的洗涤水相互流通；还能使得定位环41对自转转轴42进行定位，防止自转转轴42偏移，进而保证清洗喷淋臂300不会产生偏心旋转。
如图8所示，本实施例中，自转转轴42与进水接头3、出水接头4均同轴设置，自转转轴42的一端与清洗喷淋臂300固定相连或一体设置、另一端对应插入动力喷淋臂200内部水路上所设的转轴定位槽43中。
如图3所示，本实施例中，出水接头4上设有伸入清洗喷淋臂300内部水路中的凸出部，凸出部的端部设有定位环42，自转转轴42穿过定位环42内周围成的定位孔、且自转转轴42的外周侧壁与定位环42的内周孔壁对应贴合接触。
如图4和图8所示，本实施例中，自转转轴42上设有定位部411，定位部411对应处于定位环42内，定位部411的外周径向尺寸大于自转转轴的其他部分，定位部411的下端、定位环42对应相接处均为锥形面412，不仅可以利用锥形面412引导自转转轴42对应穿过定位环42的内周通孔；还可以利用自转转轴42和定位环42的锥形接触面，使得自转转轴42与定位环42的内壁面贴合的更为充分，进一步保证清洗喷淋臂300在旋转过程中不会发生偏 移。
本实施例中，自转转轴42的径向尺寸小于出水接头4的内周壁径向尺寸，自转转轴42与出水接头4之间的间隙构成供水流在清洗喷淋臂300与动力喷淋臂200之间流动的连通水路。
如图4所示，本实施例中，出水接头4插入清洗喷淋臂300内部水路的端部设有多个间隔角度排布的凸出筋45，凸出筋45的端部相连共同围成一圆环形的定位环42；凸出筋45之间具有间隔，间隔空隙构成供水流穿过的镂空开口46，进而实现动力喷淋臂200中的洗涤水可经出水接头4、镂空开口46流入清洗喷淋臂300内部水路中。
本实施例中，出水接头4插入进水接头3内部，出水接头4外壁与进水接头3内壁相接处设有至少一圈密封圈，以实现对动力喷淋臂200和清洗喷淋臂300旋转相接处进行水密封的效果。
如图8所示，本实施例中，出水接头4上设有向外径向凸出的外卡凸441、进水接头3上设有向内径向凸出的内卡凸442，出水接头4插入进水接头3内部时，外卡凸441和内卡凸442对应卡扣相连，用于出水接头4插入进水接头3内部后进行固定，进而实现了动力喷淋臂200和清洗喷淋臂300之间可过水、可旋转相连的使用目的。
实施例三
本实施例基于上述实施例一所述的洗碗机喷淋臂，还具有如下区别技术特征：
如图1至图11所示，本实施例中介绍了一种喷淋臂和喷淋座的安装结构，设置于动力喷淋臂200与喷淋座100之间；喷淋座100上设有安装接头1，动力喷淋臂200上设有旋转接头5，旋转接头5可绕轴旋转的对应插入安装接头1内；旋转接头5的外壁上设有径向凸出的至少一圈限位环51，限位环51的外周与旋转接头5内壁相贴合接触。
通过在旋转接头外壁设置至少一圈径向凸出的限位环，以使得旋转接头经限位环与安装接头相限位接触，不仅缩小了喷淋座与喷淋臂相接触的面积，使得喷淋臂自转时的摩擦减小；还使得，旋转接头可经限位环与安装接头内壁在各个方位上均紧密贴合，进一步保证了旋转接头旋转过程中偏心位移的产生，有效保证了动力喷淋臂转动的稳定性。
如图5和图8所示，本实施例中，旋转接头5的两端分别各设有一圈径向凸出的限位环51，两限位环51的外周分别与安装接头1的内壁对应部分相贴合接触。
如图8所示，本实施例中，旋转接头5自上向下对应插入安装接头1中，安装接头1的下端设有径向凸出的环形止挡部52，旋转接头5的下端与环形止挡部52的上支撑面相接，用于将旋转接头5插接于安装接头1后、被支撑安装于环形止挡部52上侧。
本实施例中，旋转接头5为自上向下逐渐收窄径向尺寸的锥形接头，旋转接头5的上端与动力喷淋臂200下表面固定相连、或一体设置，旋转接头5的上端与动力喷淋臂200的内部水路相连通；旋转接头5的下端同轴插入安装接头1内，并与安装接头1内侧壁所设的环形止挡部52相支撑接触，实现在竖直方向的定位支撑。
如图8所示，本实施例中，安装接头1的内壁分为多个不同径向尺寸的孔段，各孔段的径向尺寸自上向下依次递减的设置；最上端孔段的内壁与旋转接头5上端的上限位环511的外周相贴合接触；最下端孔段的内壁与旋转接头5下端的下限位环512的外周相贴合接触；优选的，相邻孔段的连接处均设有锥形过渡面，以提升安装结构的结构强度。
如图8所示，本实施例中，安装接头1的最上端设有径向向内凸出的环形卡凸53，环形卡凸53的内周径向尺寸小于旋转接头5上设置的上限位环511的外周径向尺寸；优选的，环形卡凸53的内周径向尺寸大于等于旋转接头5上设置的下限位环512的外周径向尺寸。
如图8所示，本实施例中，环形止挡部52包括，第一止挡部521，自安装接头1的内壁径向向内凸出、水平延伸的、呈环状；第二止挡部522，自环形第一止挡部521的内周向上凸出、竖直延伸的、呈筒状；第一止挡部521的外周侧与安装接头1固定相连、或一体相连；第二止挡部522的上端构成上支撑面，用于与旋转接头5的下端支撑接触。
本实施例中，安装接头1与旋转接头5相接触设有至少一道密封圈，用于隔离流经水流自相接触处外溢。本实施例中，可以在上、下限位环511、512的外周与安装接头1内壁之间分别设有密封圈；和/或，旋转接头5下端与安装接头1的环形止挡部52的相接处设有至少一道密封圈，以保证喷淋座100与动力喷淋臂200旋转相连处进行防水密封处理，实现喷淋座100与动力喷淋臂200之间可过水的相连通、可相对绕轴旋转的使用目的。
实施例四
本实施例基于上述实施例一所述的洗碗机喷淋臂，还具有如下区别技术特征：
如图1至图11所示，本实施例中介绍了一种喷淋器，其包括，喷淋座100；至少两个喷淋臂；各喷淋臂经行星传动齿轮机构400安装于喷淋座100上，各喷淋臂可相互组合的产生自转和/或公转；定位杆13，穿过各喷淋臂并与行星传动齿轮机构400中的至少部分齿轮相止挡啮合，用于将各喷淋臂保持于设定位置。
通过在喷淋器上设置定位杆，将定位杆依次穿过各喷淋臂上所设的预设通孔、以及与传动齿轮组的对应齿轮相啮合止挡，以达到定位杆插接安装后将喷淋器的各喷淋臂限制于初设的设定位置，进而达到对喷淋器初始位置进行定位、便于喷淋器运输及安装的显著技术进步。
本实施例中，各喷淋臂上分别设有上下贯通的定位孔14，定位杆13依次穿过处于设定位置的各喷淋臂上所设的定位孔14，定位杆13至少穿过行星齿轮系400的至少一处齿轮啮合处。
本实施例中，行星传动齿轮机构400包括，动力喷淋臂200和清洗喷淋臂300之间的第一传动齿轮组；定位杆13穿过第一传动齿轮组的齿轮啮合处，用于阻挡第一齿轮组的传动旋转。
本实施例中，行星传动齿轮机构400包括，动力喷淋臂200和喷淋座100之间的第二传动齿轮组；定位杆13穿过第二传动齿轮组的齿轮啮合处，用于阻挡第二齿轮组的传动旋转；定位杆13阻挡第二齿轮组的传动旋转方向、与阻挡第一齿轮组的传动旋转方向相反设置，用于阻挡行星传动齿轮机构400无法向正转和反转方向运行，进而实现行星传动齿轮机构400正方双旋转方向的锁止。
如图2所示，本实施例中，喷淋器受定位杆13的作用而保持于设定的初始位置时，清洗喷淋臂300和动力喷淋臂200的水平轴线上下平行，使得清洗喷淋臂300和动力喷淋臂200相平行排布，以尽量缩减喷淋器所占空间，进一步便于喷淋器的运输和安装。
本实施例中，定位杆13还可以穿过喷淋座1上所设的、上下贯通的定位孔，以进一步提升定位杆对各喷淋臂的限制、提升喷淋臂的安装便利度(未在附图中注明)。
本实施例中，定位杆13分为径向尺寸径较大的上部分131、和径向尺寸较小的下部分132；定位杆13的上部分131的径向尺寸大于各喷淋臂上所设定位孔14的孔径；定位杆13的下部分132的径向尺寸小于等于各喷淋臂上所设定位孔14的孔径。通过上述设置，定位杆13的上部分131受清洗喷淋臂300上所设定位孔14的限制，而被止挡于清洗喷淋臂300上侧，实现了定位杆13与定位孔14相插接后、在轴向方向支撑定位的目的。
本实施例中，定位杆13的下部分132穿过动力喷淋臂200和清洗喷淋臂300之间的第一传动齿轮组的齿轮啮合处，用于阻挡第一齿轮组的传动旋转；定位杆13的下部分132还穿过动力喷淋臂200和喷淋座100之间的第二传动齿轮组的齿轮啮合处，用于阻挡第二齿轮组的传动旋转。
如图1至图11所示，本实施例中，第一齿轮组包括，相互啮合的上行星齿轮8和从动齿轮11，从动齿轮11固定于清洗喷淋臂300上；第二齿轮组包括，相互啮合的下行星齿轮9和固定齿轮10，固定齿轮10固定于喷淋座100上；上行星齿轮8和下行星齿轮9固定于行星齿轮架轴7上，行星齿轮架轴7可绕轴旋转的安装于动力喷淋臂200上；定位杆13的下部分132位于第一齿轮组的上行星齿轮8啮合处的正转方向侧，用于阻挡第一齿轮组的正转传动旋转；定位杆13的下部分132位于第二齿轮组的下行星齿轮啮合处的反转方向侧，用于阻 挡第一齿轮组的反转传动旋转。
本实施例中，定位杆13的下部分132的上侧穿过上行星齿轮8的啮合齿的正转方向侧的将啮合齿槽、或者定位杆13的下部分132的上侧穿过从动齿轮11的正转方向侧的将啮合齿槽；定位杆13的下部分132的下侧穿过下行星齿9的啮合齿的反转方向侧的已啮合齿槽、或者定位杆13的下部分132的下侧穿过固定齿轮10的啮合齿的反转方向侧的已啮合齿槽。通过将定位杆13分别与第一齿轮组和第二齿轮组的部分齿轮相卡和，且定位杆13与两组齿轮组分别卡和的齿槽为不同转动方向侧的齿槽，实现了定位杆13对两组齿轮组不同转动方向的制动锁止，进而达到了对清洗喷淋臂300和动力喷淋臂200在转动方向上的锁止固定。
实施例五
本实施例基于上述实施例一所述的洗碗机喷淋臂，还具有如下区别技术特征：
如图1至图11所示，本实施例中介绍了一种喷淋器，其包括：喷淋座100；动力喷淋臂200，可旋转的安装于喷淋座100上；清洗喷淋臂300，可旋转的安装于动力喷淋臂200上；行星齿轮架轴7上下贯穿的、可绕轴自转的安装于动力喷淋臂200的安装孔77中，行星齿轮架轴7外套设有防摩擦环71。
通过将行星齿轮架轴7与动力喷淋臂200之间加装防摩擦环71，以使得行星齿轮架轴7绕轴自转时仅与防摩擦环71的光滑内壁相接触，进而减小了行星齿轮架轴7绕轴旋转时的摩擦力；同时，由于防摩擦环71的加装，防摩擦环71在自身外壁较大的摩擦阻力作用下不会随行星齿轮架轴7跟转，使得动力喷淋臂200的安装孔77仅与不会产生旋转的防摩擦环71外壁相接，减少了安装孔77的孔壁的磨损，进而延长了喷淋器的使用寿命。
如图9至图11所示，本实施例中，防摩擦环71为同轴套设于行星齿轮架轴7外的套筒结构，套筒结构的外周设有间隔角度排布的、径向凸出的多个防摩擦凸筋72；各防摩擦凸筋72的凸出端均与安装孔77的孔壁相限位接触，以使得防摩擦环71的外周壁面与动力喷淋臂200的安装孔77的内壁面之间充分接触，进而提升二者之间的摩擦力，有效防止防摩擦环71产生绕轴自转情况的发生。同时，套筒状的防摩擦环71的内周壁为光环的圆筒面，以尽量减小行星齿轮架轴7旋转时的摩擦力。
本实施例中，各防摩擦凸筋72的凸出端构成的外轮廓径向尺寸等于或稍大于安装孔77孔径，用于防摩擦环71与安装孔77之间形成过盈配合、进而实现防摩擦环71无法相对旋转的紧固安装的目的。
如图1至图11所示，本实施例中，行星齿轮架轴7的上端一体设置有上行星齿轮8，上行星齿轮8与行星齿轮架轴7同轴设置；防摩擦环71的上端面设有径向凸出的一圈挡筋73，挡筋73的外周径向尺寸大于安装孔77的孔径；优选的，挡筋73的上端面设有一圈向上凸出的环形凸起，以将挡筋73的上端面与上行星齿轮8的下端面相间隔设置，以尽量减小行星齿轮与防摩擦环71之间的接触，进而提升行星传动齿轮机构400的传动效率。
如图9至图11所示，本实施例中，行星齿轮架轴7的外周壁设有径向凸出的至少一圈卡凸74，筒状防摩擦环71的中心通孔的径向尺寸小于等于卡凸74的外周径向尺寸，各卡凸74与防摩擦环71的内周孔壁之间分别形成卡扣连接，用于筒状防摩擦环71与行星齿轮架轴7之间形成固定安装；优选的，行星齿轮架轴7上设有两圈卡凸74，分别与筒状防摩擦环71的中心通孔的上端和下端处分别形成卡扣连接。
本实施例中，行星齿轮架轴7的下端设有向下凸出延伸的卡扣部75，卡扣部75上固定安装有下行星齿轮9，下行星齿轮9与行星齿轮架轴7同轴设置。
本实施例中，下行星齿轮9的中心轴处设有非圆孔76，卡扣部75插入非圆孔76，卡扣部75与非圆孔76之间形成可拆卸的固定连接，使得下行星齿轮9与行星齿轮架轴7的下端形成可拆卸、同轴相连的、无法相对旋转的连接。
如图9至图11所示，本实施例中，卡扣部75包括相平行、间隔排布的两弹片751，两弹片751的外周分别与下行星齿轮9的非圆孔76的孔壁相对应贴合接触，用于形成无法相对旋 转的相互插接连接；两弹片751的外壁分别设有向相反侧径向凸出的径向凸起752，用于对下行星齿轮9的下端面进行卡扣相接；两弹片751可在自身特性下产生弹性变形，用于将两弹片751之间的间隙缩窄、令卡扣部75的径向凸起752与下行星齿轮9相分离。
如图9至图11所示，本实施例中，为了提升卡扣的扣合稳定性，在下行星齿轮9的非圆孔76处设有一轴向向下凸出的止挡凸78，止挡凸78位于非圆孔76的中部，卡扣部75的两弹片751对应插入止挡凸78两侧的非圆孔76中；优选的，止挡凸78为上下竖直设置，止挡凸的下端设有径向凸出的水平凸出部，用于将两弹片751向两侧撑开，令弹片上所设的径向凸起752与下行星齿轮9的卡扣更为稳固。
实施例六
本实施例基于上述实施例所述的洗碗机喷淋臂，还具有如下区别技术特征：
如图1至图11所示，本实施例中介绍了一种喷淋器，其包括：喷淋座100；动力喷淋臂200，可旋转的安装于喷淋座100上，内部具有第一水路17；清洗喷淋臂300，可旋转的安装于动力喷淋臂200上，内部具有第二水路18；动力喷淋臂200上设有第一遮挡罩15，用于对动力喷淋臂200和喷淋座100的旋转相连处进行遮挡；清洗喷淋臂上设有第二遮挡罩16，用于对清洗喷淋臂300和动力喷淋臂200的旋转相连处进行遮挡。
通过在各喷淋臂上分别设置遮挡罩，以实现各喷淋臂上设置的遮挡罩分别对各喷淋臂处所设传动齿轮组进行遮挡，有效避免了洗碗机的喷淋水喷射至传动齿轮处，令喷淋器的传动齿轮机构不会受喷淋水、清洗异物等干涉，进而保证了喷淋器的平稳运行。
如图1至图8所示，本实施例中，喷淋座100的上端设有径向向外凸出的固定齿轮10，动力喷淋臂200上安装有处于下侧的、与固定齿轮10相啮合的下行星齿轮9；第一遮挡罩15至少覆盖遮挡固定齿轮10和下行星齿轮9。
本实施例中，第一遮挡罩15呈与固定齿轮10同轴设置的圆盘状，圆盘状第一遮挡罩15的半径尺寸大于等于固定齿轮10的半径和下行星齿轮9的直径之和。
本实施例中，清洗喷淋臂300的下侧设有向下凸出的、竖直设置轴线的从动齿轮11，动力喷淋臂200上安装有处于上侧的、与从动齿轮11相啮合的上行星齿轮8；第二遮挡罩16至少覆盖遮挡从动齿轮11和上行星齿轮8。
本实施例中，第二遮挡罩16呈与从动齿轮11同轴设置的圆盘状，圆盘状第二遮挡罩16的半径尺寸大于等于从动齿轮11的半径和上行星齿轮8的直径之和。
如图2至图8所示，本实施例中，第一遮挡罩15和第二遮挡罩16的外周分别设有一圈向下竖直弯折的挡边19，挡边19的下端不高于遮挡罩下方齿轮的下端面，以使得遮挡罩可对下方齿轮组的侧方向进行遮挡，避免喷淋器的喷淋水自侧部溅射至行星传动齿轮机构上。
如图3所示，本实施例中，动力喷淋臂200上设有供行星齿轮传动机构400安装的齿轮啮合区域，齿轮啮合区域与动力喷淋臂200内所设的第一水路17相交错排布，以使得喷淋器的传动齿轮与洗涤水过水水路分处于不同区域，令传动齿轮不会与过水水流之间产生相互干涉。
本实施例中，动力喷淋臂200上设有与喷淋座100相连通的旋转接头5、用于向动力喷淋臂200的第一水路17内进水，与清洗喷淋臂300相连通的出水接头4、用于将第一水路17内的水流向清洗喷淋臂300的第二水路18；旋转接头5和出水接头4偏心设置，动力喷淋臂200上处于旋转接头5和出水接头4之间的部分划分为左右区域，左区域内具有构成部分第一水路17的通道，用于将旋转接头5和出水接头4相连通；右区域为与第一水路17相隔离的齿轮啮合区域，其上设有供行星齿轮架轴7穿过安装的安装孔77。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的 等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (60)

  1. 一种洗碗机喷淋器，包括，喷淋座；动力喷淋臂，可绕喷淋座中心轴旋转的安装于喷淋座上；清洗喷淋臂，可绕自身所设喷淋转轴旋转的安装于动力喷淋臂上；其特征在于：行星齿轮架，与喷淋座中心轴偏心设置的安装于动力喷淋臂上；行星齿轮架上设有分别与喷淋臂上所设的固定齿轮、和清洗喷淋臂上所设的从动齿轮相啮合的行星齿轮。
  2. 根据权利要求1所述的一种洗碗机喷淋器，其特征在于，喷淋座上设有沿中心轴延伸、内部限定出水路的安装接头，安装接头上同轴设置有与喷淋座相固定或一体设置的固定齿轮；动力喷淋臂上设有与喷淋座中心轴同轴设置、对应可绕轴旋转的安装于喷淋座的安装接头中的第一转轴部。
  3. 根据权利要求2所述的一种洗碗机喷淋器，其特征在于，第一转轴部相对的两侧动力喷淋臂分别为第一部分和第二部分；动力喷淋臂的轴向较长的第一部分上设有至少一个驱动喷淋孔；动力喷淋臂的轴向较短的第二部分安装有可绕喷淋转轴旋转的清洗喷淋臂；喷淋转轴与中心轴相平行并偏心设置；优选的，驱动喷淋孔设于动力喷淋臂的轴向延伸长度较长的第一部分的端部。
  4. 根据权利要求2所述的一种洗碗机喷淋器，其特征在于，清洗喷淋臂的中部设有沿轴线向下凸出的、构成喷淋转轴的、对应可绕轴旋转的安装于动力喷淋臂第二部分端部的第二转轴部；第二转轴部上设有同轴设置的、与清洗喷淋臂相固定或一体设置的从动齿轮。
  5. 根据权利要求4所述的一种洗碗机喷淋器，其特征在于，行星齿轮架，包括与喷淋座中心轴相平行设置的行星齿轮架轴；行星齿轮架轴可相对绕轴旋转的安装于动力喷淋臂的第二部分的中部；行星齿轮架轴上固定安装、或一体设置有行星齿轮，行星齿轮分别与从动齿轮和固定齿轮相啮合。
  6. 根据权利要求5所述的一种洗碗机喷淋器，其特征在于，行星齿轮架轴的上下两端分别凸出于动力喷淋臂，并分别固定安装、或一体设置有上行星齿轮和下行星齿轮；上行星齿轮与清洗喷淋臂上设置的从动齿轮相啮合；下行星齿轮与喷淋座上设置的固定齿轮相啮合。
  7. 根据权利要求1至6任一所述的一种洗碗机喷淋器，其特征在于，喷淋座、动力喷淋臂和清洗喷淋臂自下向上依次间隔排布；动力喷淋臂和清洗喷淋臂均水平延伸；喷淋座、动力喷淋臂和清洗喷淋臂的中心轴线均竖直设置。
  8. 根据权利要求1至6任一所述的一种洗碗机喷淋器，其特征在于，喷淋座的安装接头所形成水路经第一转轴部与动力喷淋臂内所设的第一水路相连通，动力喷淋臂内所设的第一水路经第二转轴部与清洗喷淋臂内所设的第二水路相连通。
  9. 根据权利要求1至6任一所述的一种洗碗机喷淋器，其特征在于，清洗喷淋臂上排布有多个清洗喷淋孔，各清洗喷淋孔与第二转轴部的轴线距离不等设置。
  10. 一种洗碗机，其包括：内胆；其特征在于：内胆内安装有上述权利要求1至9任一所述的一种洗碗机喷淋器，洗碗机喷淋器的喷淋座固定安装于内胆内壁上。
  11. 一种喷淋臂间的旋转密封连接结构，设置于动力喷淋臂和清洗喷淋臂之间；其特征在于：清洗喷淋臂上设有进水接头；动力喷淋臂上设有出水接头，出水接头可绕轴相对旋转的插入进水接头内；清洗喷淋臂上设有插入进水接头中、同轴设置的自转转轴，动力喷淋臂的出水接头上设有套设于自转转轴外周、对其进行轴向偏移定位的定位环。
  12. 根据权利要求11所述的一种喷淋臂间的旋转密封连接结构，其特征在于，自转转轴与进水接头、出水接头均同轴设置，自转转轴的一端与清洗喷淋臂固定相连或一体设置、另一端对应插入动力喷淋臂内部水路上所设的转轴定位槽中。
  13. 根据权利要求12所述的一种喷淋臂间的旋转密封连接结构，其特征在于，出水接头上设有伸入清洗喷淋臂内部水路中的凸出部，凸出部的端部设有定位环，自转转轴穿过定位环内周围成的定位孔、且自转转轴的外周侧壁与定位环的内周孔壁对应贴合接触。
  14. 根据权利要求13所述的一种喷淋臂间的旋转密封连接结构，其特征在于，自转转轴上设有定位部，定位部对应处于定位环内，定位部的外周径向尺寸大于自转转轴的其他部分； 优选的，定位部的下端部、与定位环对应相接处设有锥形面。
  15. 根据权利要求11至14任一所述的一种喷淋臂间的旋转密封连接结构，其特征在于，自转转轴的径向尺寸小于出水接头的内周壁径向尺寸，自转转轴与出水接头之间的间隙构成供水流在清洗喷淋臂与动力喷淋臂之间流动的连通水路。
  16. 根据权利要求13所述的一种喷淋臂间的旋转密封连接结构，其特征在于，出水接头插入清洗喷淋臂内部水路的端部设有多个间隔角度排布的凸出筋，各凸出筋的上端部相连以共同围成圆环形的定位环。
  17. 根据权利要求16所述的一种喷淋臂间的旋转密封连接结构，其特征在于，相邻凸出筋之间相距间隙，所述间隙构成镂空开口，用于将出水接头和自转转轴之间的水路中的水流导出；镂空开口将动力喷淋臂内的第一水路和清洗喷淋臂内的第二水路相导通。
  18. 根据权利要求11至17任一所述的一种喷淋臂间的旋转密封连接结构，其特征在于，出水接头插入进水接头内部，出水接头外壁与进水接头内壁相接处设有至少一圈密封圈。
  19. 根据权利要求18所述的一种喷淋臂间的旋转密封连接结构，其特征在于，出水接头上设有向外径向凸出的外卡凸、进水接头上设有向内径向凸出的内卡凸，出水接头插入进水接头内部时，外卡凸和内卡凸对应卡扣相连，用于出水接头插入进水接头内部后进行卡扣固定。
  20. 一种洗碗机，其包括：内胆；其特征在于：内胆内安装有喷淋器，喷淋器采用上述权利要求11至19任一所述的喷淋臂间的旋转密封连接结构。
  21. 一种喷淋臂和喷淋座间的安装结构，设置于动力喷淋臂与喷淋座之间；其特征在于：喷淋座上设有安装接头，动力喷淋臂上设有旋转接头，旋转接头可绕轴旋转的对应插入安装接头内；旋转接头的外壁上设有径向凸出的至少一圈限位环，限位环的外周与旋转接头内壁相贴合接触。
  22. 根据权利要求21所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，旋转接头的两端分别各设有一圈径向凸出的限位环，两限位环的外周分别与安装接头的内壁对应部分相贴合接触。
  23. 根据权利要求21所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，旋转接头自上向下对应插入安装接头中，安装接头的下端设有径向凸出的环形止挡部，旋转接头的下端与环形止挡部的上支撑面相接，用于将旋转接头插接于安装接头后、被支撑于环形止挡部上侧。
  24. 根据权利要求21至23任一所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，旋转接头为自上向下逐渐收窄径向尺寸的锥形接头，旋转接头的上端与动力喷淋臂的下表面固定相连、或一体设置，旋转接头内部孔道与动力喷淋臂内部的第一水路相连通；旋转接头同轴插入安装接头内，旋转接头的下端与安装接头内侧壁所设的环形止挡部相支撑接触。
  25. 根据权利要求24所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，安装接头的内壁分为多个不同径向尺寸的孔段，各孔段的径向尺寸自上向下依次递减的设置；最上端孔段的内壁与旋转接头上端的上限位环的外周相贴合接触；最下端孔段的内壁与旋转接头下端的下限位环的外周相贴合接触；优选的，相邻孔段的连接处均设有锥形过渡面。
  26. 根据权利要求24所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，安装接头的最上端设有径向向内凸出的环形卡凸，环形卡凸的内周径向尺寸小于旋转接头上设置的上限位环的外周径向尺寸；优选的，环形卡凸的内周径向尺寸大于等于旋转接头上设置的下限位环的外周径向尺寸。
  27. 根据权利要求24所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，环形止挡部包括，第一止挡部，自安装接头的内壁径向向内凸出、水平延伸的、呈环状；第二止挡部，自环形第一止挡部的内周向上凸出、竖直延伸的、呈筒状；第一止挡部的外周侧与安装接头固定相连、或一体相连；第二止挡部的上端构成上支撑面，用于与旋转接头的下端支撑接触。
  28. 根据权利要求21至23任一所述的一种喷淋臂和喷淋座间的安装结构，其特征在于，安装接头与旋转接头相接触设有至少一道密封圈，用于隔离流经水流自相接触处外溢。
  29. 根据权利要28所述的一种喷淋臂和喷淋座的安装结构，其特征在于，上、下限位环的外周与安装接头内壁之间分别设有密封圈；和/或，旋转接头下端与安装接头的环形止挡部的相接处设有至少一道密封圈。
  30. 一种洗碗机，其包括，内胆；其特征在于：内胆中安装有喷淋器，喷淋器具有上述权利要求21至29任一所述的喷淋臂和喷淋座间的安装结构。
  31. 一种喷淋器，其包括，喷淋座；至少两个喷淋臂，安装于喷淋座上；各喷淋臂之间经行星传动齿轮机构相连，各喷淋臂可产生自转和/或公转；其特征在于：定位杆，穿过各喷淋臂并与行星传动齿轮机构中的至少部分齿轮相止挡啮合，用于将各喷淋臂保持于设定位置。
  32. 根据权利要求31所述的一种喷淋器，其特征在于，各喷淋臂上分别设有上下贯通的定位孔，定位杆依次穿过处于设定位置的各喷淋臂上所设的定位孔，定位杆至少穿过行星传动齿轮机构的至少一处齿轮啮合处。
  33. 根据权利要求32所述的一种喷淋器，其特征在于，行星传动齿轮机构包括，动力喷淋臂和清洗喷淋臂之间的第一传动齿轮组；定位杆穿过第一传动齿轮组的齿轮啮合处，用于阻挡第一齿轮组的传动旋转。
  34. 根据权利要求33所述的一种喷淋器，其特征在于，行星传动齿轮机构包括，动力喷淋臂和喷淋座之间的第二传动齿轮组；定位杆穿过第二传动齿轮组的齿轮啮合处，用于阻挡第二齿轮组的传动旋转；定位杆阻挡第二齿轮组的传动旋转方向、与阻挡第一齿轮组的传动旋转方向相反设置。
  35. 根据权利要求31至34任一所述的一种喷淋器，其特征在于，定位杆还穿过喷淋座上所设的、上下贯通的定位孔。
  36. 根据权利要求31至34任一所述的一种喷淋器，其特征在于，定位杆分为径向尺寸径较大的上部分、和径向尺寸较小的下部分；定位杆的下部分的径向尺寸小于等于各喷淋臂上所设定位孔的孔径。
  37. 根据权利要求36所述的一种喷淋器，其特征在于，定位杆的下部分穿过动力喷淋臂和清洗喷淋臂之间的第一传动齿轮组的齿轮啮合处，用于阻挡第一齿轮组的传动旋转；定位杆的下部分还穿过动力喷淋臂和喷淋座之间的第二传动齿轮组的齿轮啮合处，用于阻挡第二齿轮组的传动旋转；优选的，定位杆的上部分的径向尺寸大于各喷淋臂上所设定位孔的孔径，定位杆的上部分受孔径较小的定位孔的支撑处于清洗喷淋臂的上方。
  38. 根据权利要求37所述的一种喷淋器，其特征在于，第一齿轮组包括，相互啮合的上行星齿轮和从动齿轮，从动齿轮固定于清洗喷淋臂上；第二齿轮组包括，相互啮合的下行星齿轮和固定齿轮，固定齿轮固定于喷淋座上；上行星齿轮和下行星齿轮固定于行星齿轮架轴上，行星齿轮轮架轴可绕轴旋转的安装于动力喷淋臂上；定位杆的下部分的上端位于第一齿轮组的上行星齿轮啮合处的正转方向侧，用于阻挡第一齿轮组的正转传动旋转；定位杆的下部分的下端位于第二齿轮组的下行星齿轮啮合处的反转方向侧，用于阻挡第一齿轮组的反转传动旋转。
  39. 根据权利要求37所述的一种喷淋器，其特征在于，定位杆的下部分穿过上行星齿轮、或从动齿轮的啮合齿的正转方向侧的将啮合齿槽；定位杆的下部分穿过下行星齿轮、或固定齿轮的啮合齿的反转方向侧的已啮合齿槽；优选的，定位杆的上部分的径向尺寸大于上行星齿轮、或从动齿轮的齿槽的宽度，定位杆的上部分受上行星齿轮、或从动齿轮的上端面支撑处于上行星齿轮、或从动齿轮的上方。
  40. 一种洗碗机，其特征在于：洗碗机的内胆中安装有上述权利要求31至39任一所述的喷淋器。
  41. 一种喷淋器，其包括：喷淋座；动力喷淋臂，可旋转的安装于喷淋座上；清洗喷淋 臂，可旋转的安装于动力喷淋臂上；其特征在于：行星齿轮架轴，上下贯穿的、可绕轴自转的安装于动力喷淋臂的安装孔中；行星齿轮架轴外套设有防摩擦环。
  42. 根据权利要求41所述的一种喷淋器，其特征在于，防摩擦环为同轴套设于行星齿轮架轴外的套筒结构，套筒结构的外周设有间隔角度排布的、径向凸出的多个防摩擦凸筋；各防摩擦凸筋的凸出端均与安装孔的孔壁相限位接触。
  43. 根据权利要求42所述的一种喷淋器，其特征在于，各防摩擦凸筋的凸出端构成的外轮廓的径向尺寸等于或稍大于安装孔孔径，用于防摩擦环与安装孔之间形成过盈配合。
  44. 根据权利要求41至43任一所述的一种喷淋器，其特征在于，行星齿轮架轴的上端一体设置有上行星齿轮，上行星齿轮与行星齿轮架轴同轴设置；防摩擦环的上端面设有径向凸出的一圈挡筋，挡筋的外周径向尺寸大于安装孔的孔径；优选的，挡筋的上端面设有向上凸出的一圈凸出部，挡筋上端面与上行星齿轮的下端面间受凸出部作用而形成间隔。
  45. 根据权利要求41至43任一所述的一种喷淋器，其特征在于，行星齿轮架轴的外周壁设有径向凸出的至少一圈卡凸，筒状防摩擦环的中心通孔的径向尺寸小于等于卡凸的外周径向尺寸，各卡凸与防摩擦环的内周孔壁之间分别形成卡扣连接，用于筒状防摩擦环与行星齿轮架轴之间在轴向形成固定；优选的，行星齿轮架轴上设有两圈卡凸，分别与筒状防摩擦环的中心通孔的上端和下端处分别形成卡扣连接。
  46. 根据权利要求41至43任一所述的一种喷淋器，其特征在于，行星齿轮架轴的下端设有向下凸出延伸的卡扣部，卡扣部上固定安装有下行星齿轮，下行星齿轮与行星齿轮架轴同轴设置。
  47. 根据权利要求46所述的一种喷淋器，其特征在于，下行星齿轮的中心轴处设有非圆孔，卡扣部插入非圆孔，卡扣部与非圆孔之间形成可拆卸的、无法相对绕轴旋转的连接。
  48. 根据权利要求47所述的一种喷淋器，其特征在于，卡扣部包括相平行、间隔排布的两弹片，两弹片的外周分别与卡扣部的非圆孔的孔壁相对应贴合接触，用于形成无法相对旋转的相互插接连接；两弹片的外壁分别设有径向凸起，用于对下行星齿轮的下端面进行卡扣相接；两弹片可在自身特性下产生弹性变形，用于将两弹片之间的间隙缩窄、令卡扣与下行星齿轮相分离。
  49. 根据权利要求48所述的一种喷淋器，其特征在于，在下行星齿轮的非圆孔处设有一轴向向下凸出的止挡凸，止挡凸位于非圆孔的中部；卡扣部插入非圆孔时，止挡凸对应插入卡扣部的两弹片之间的间隙中。
  50. 一种洗碗机，其特征在于：洗碗机的内胆中安装有上述权利要求41至49任一所述的喷淋器。
  51. 一种喷淋器，其包括：喷淋座；动力喷淋臂，可旋转的安装于喷淋座上；清洗喷淋臂，可旋转的安装于动力喷淋臂上；其特征在于：动力喷淋臂上设有第一遮挡罩，用于对动力喷淋臂和喷淋座的旋转相连处进行遮挡；清洗喷淋臂上设有第二遮挡罩，用于对清洗喷淋臂和动力喷淋臂的旋转相连处进行遮挡。
  52. 根据权利要求51所述的一种喷淋器，其特征在于，喷淋座的上端设有径向向外凸出的固定齿轮，动力喷淋臂上安装有处于下侧的、与固定齿轮相啮合的下行星齿轮；第一遮挡罩至少覆盖遮挡固定齿轮和下行星齿轮。
  53. 根据权利要求52所述的一种喷淋器，其特征在于，第一遮挡罩呈与固定齿轮同轴设置的圆盘状，圆盘状第一遮挡罩的半径尺寸大于等于固定齿轮的半径和下行星齿轮的直径之和。
  54. 根据权利要求51所述的一种喷淋器，其特征在于，清洗喷淋臂的下侧设有向下凸出的、竖直设置轴线的从动齿轮，动力喷淋臂上安装有处于上侧的、与从动齿轮相啮合的上行星齿轮；第二遮挡罩至少覆盖遮挡从动齿轮和上行星齿轮。
  55. 根据权利要求54所述的一种喷淋器，其特征在于，第二遮挡罩呈与从动齿轮同轴设置的圆盘状，圆盘状第二遮挡罩的半径大于等于从动齿轮的半径和上行星齿轮的直径之和。
  56. 根据权利要求51至55任一所述的一种喷淋器，其特征在于，遮挡罩的外周分别设有一圈向下竖直弯折的挡边，挡边的下端不高于遮挡罩下方齿轮的下端面。
  57. 根据权利要求51至56任一所述的一种喷淋器，其特征在于，动力喷淋臂上设有供行星齿轮系安装的齿轮啮合区域，齿轮啮合区域与动力喷淋臂内所设的第一水路相交错排布。
  58. 根据权利要求57所述的一种喷淋器，其特征在于，动力喷淋臂上设有与喷淋座相连通的旋转接头，与清洗喷淋臂相连通的出水接头；旋转接头和出水接头偏心设置，动力喷淋臂上处于旋转接头和出水接头之间的部分划分为左右区域，左区域内具有构成部分第一水路的通道，用于将旋转接头和出水接头相连通；右区域为与第一水路相隔离的齿轮啮合区域，其上设有供行星齿轮架轴穿过安装的安装孔。
  59. 根据权利要求58所述的一种喷淋器，其特征在于，出水接头与第一遮挡罩相交错设置。
  60. 一种洗碗机，其特征在于：洗碗机的内胆中安装有上述权利要求51至59任一所述的喷淋器。
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