CN218128458U - Spray arm assembly and dish washing machine - Google Patents

Abstract

The utility model discloses a spray arm subassembly and dish washer, the spray arm subassembly is including spouting the arm seat, the apparatus further comprises a rotating shaft, the connecting seat, first spray arm and carousel, it has the centre bore to spout the arm seat, the centre bore is worn to locate in the pivot and the relative spray arm seat rotates, the connecting seat is fixed in the tip of pivot, one side of connecting seat is provided with the connecting axle, the connecting axle cover is equipped with rotatable pendulum cover, first spray arm fixed connection is in pendulum cover, the carousel rotates to be connected in spouting the arm seat, pivot drive carousel rotates, the carousel is provided with first guide part, the second guide part that the cover was provided with the first guide part of cooperation sways the cover and is provided with the second guide part of cooperation, the carousel drives pendulum cover and first spray arm through the cooperation of first guide part and second guide part and rotates, in order to change the water spray direction. The carousel drives through the cooperation of first guide part and second guide part and shakes the set and first spray arm rotates, therefore first spray arm rotates around the connecting axle to change the direction of water spray, be favorable to multiple angle to wash away the surface of tableware, help washing out the tableware.

Description

Spray arm assembly and dish washing machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to spray arm subassembly and dish washer.

Background

With the improvement of living standard, a dish washer capable of freeing both hands is gradually becoming a standard for quality life. Compared with the traditional hand washing, the dish washing machine has the advantages of cleaning, sterilizing, saving water and labor and the like. The dish washer is generally driven by a washing pump to spray water through a rotating spray arm assembly to wash the surface of tableware, the spray arm assembly is provided with a swing structure to change the direction of the sprayed water, and the cleaning effect of the dish washer is closely related to the design of the spray arm.

In the correlation technique, the swing structure of the spray arm assembly is unstable, and the defect of clamping stagnation of the spray arm exists, so that the function failure of swinging and spraying water is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a spray arm subassembly sways the function reliable and stable, reduces the risk that the jamming appears in the spray arm by a wide margin.

The utility model discloses provide the dish washer that has above-mentioned spray arm subassembly simultaneously.

According to the utility model discloses spray arm subassembly of first aspect embodiment, including spouting arm seat, pivot, connecting seat, first spray arm and carousel, it has the centre bore to spout the arm seat, the pivot is worn to locate the centre bore is relative spout the arm seat rotates, the connecting seat is fixed in the tip of pivot, one side of connecting seat is provided with the connecting axle, the connecting axle cover is equipped with rotatable swing cover, first spray arm fixed connection in swing cover, the carousel rotate connect in spout the arm seat, the pivot drive the carousel rotates, the carousel is provided with first guide part, swing cover is provided with the cooperation the second guide part of first guide part, the carousel passes through first guide part with the cooperation of second guide part drives swing cover reaches first spray arm rotates to change the direction water spray.

According to the utility model discloses spray arm subassembly of first aspect embodiment has following beneficial effect at least: the water flow is sprayed out from the water spraying holes of the first spraying arm, the first spraying arm and the connecting seat are pushed to rotate by using the counterforce, the rotating shaft is driven by the connecting seat to rotate, the rotating shaft drives the rotating disc to rotate, and the rotating disc drives the swinging sleeve and the first spraying arm to rotate through the matching of the first guide part and the second guide part, so that the first spraying arm rotates around the connecting shaft, the direction of water spraying is changed, the surface of tableware is favorably washed at various angles, and the tableware is favorably cleaned; first spray arm installs in the connecting seat through swaing the cover, follows moreover and swabs the cover rotation that sways, can reduce the risk of jamming, improves and uses the reliability.

According to some embodiments of the first aspect of the present invention, the first guide portion is a guide groove disposed around the circumferential wall of the turntable, and the second guide portion is a guide bar that is snapped into the guide groove.

According to some embodiments of the first aspect of the present invention, the axis of the guide groove is a continuously varying curve in the axial direction of the turntable.

According to some embodiments of the first aspect of the present invention, the turntable has a plurality of, each of the turntables is provided with one of the guide grooves.

According to the utility model discloses some embodiments of first aspect, the outer wall of connecting axle is provided with a plurality of annular sealing strips, the inner wall butt of pendulum cover the sealing strip, first spray arm is provided with the encirclement the installation cover of pendulum cover, the installation cover with pendulum cover is sealing connection.

According to the utility model discloses some embodiments of the first aspect, the outer wall of shaking and swinging cover is provided with first fixture block, the installation cover is provided with first draw-in groove, first fixture block card is gone into first draw-in groove.

According to the utility model discloses some embodiments of the first aspect, the tip cover of connecting axle is equipped with the stop collar, the outer wall of stop collar is provided with the fender ring, follows the axial of connecting axle, it is injectd to keep off the ring the pendulum cover.

According to the utility model discloses some embodiments of first aspect, the stop collar is connected with the gasket, the gasket butt simultaneously keep off the ring and the terminal surface of pendulum cover.

According to the utility model discloses some embodiments of the first aspect, the outer wall of connecting axle is provided with the second fixture block, stop collar is provided with the second draw-in groove, the second fixture block card is gone into the second draw-in groove.

According to some embodiments of the first aspect of the present invention, the connecting seat is provided with a support portion, the support portion surrounds the first spray arm, and the support portion supports one end of the first spray arm that deviates from the connecting shaft.

According to some embodiments of the first aspect of the present invention, the supporting portion is provided with a slot, the first spray arm deviates from one end of the connecting shaft is provided with a rotating shaft, the rotating shaft cartridge is in the slot and can be relative the supporting portion rotates.

According to some embodiments of the first aspect of the present invention, the connecting seat is provided with two the connecting shaft, two the connecting shaft symmetrical arrangement is in the both sides of the connecting seat, first spray arm with the connecting shaft one-to-one.

According to the utility model discloses some embodiments of first aspect, the spray arm seat is connected with drive assembly, drive assembly includes ring gear, planet carrier, sun gear and two at least planet wheels, the planet carrier is fixed in the spray arm seat is and be provided with the planet axle, the planet wheel rotate connect in the planet axle, the ring gear rotate connect in the planet carrier, the sun gear is fixed in the pivot, the planet wheel mesh in simultaneously the sun gear reaches the ring gear, carousel fixed connection the ring gear.

According to the utility model discloses some embodiments of the first aspect, the outer wall of planet carrier is provided with the support ring, the terminal surface of ring gear is provided with the slip ring, the terminal surface of slip ring is arcwall face and butt the support ring, the carousel has the barrel, the ring gear inlay dress in the inner wall of barrel.

According to the utility model discloses some embodiments of the first aspect, the connecting seat is provided with the installation department, the installation department has the through-hole, the pivot cartridge in the through-hole, the outer wall of installation department is provided with the spacing ring, the barrel orientation the tip inner wall of connecting seat is provided with radial extension's apron, the apron butt the spacing ring.

According to the utility model discloses dish washer of second aspect embodiment, including inner bag, bowl basket and as the embodiment of first aspect the spray arm subassembly, the bowl basket with the spray arm subassembly is located the inside of inner bag, the spray arm subassembly is arranged in the below of bowl basket.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a spray arm assembly according to some embodiments of the first aspect of the present invention;

FIG. 2 is a front view of the spray arm assembly of FIG. 1;

FIG. 3 is a top view of the spray arm assembly of FIG. 1;

FIG. 4 isbase:Sub>A cross-sectional view A-A of the spray arm assembly of FIG. 3;

FIG. 5 is an enlarged partial view taken at B in FIG. 4;

FIG. 6 is a first exploded view of the spray arm assembly of FIG. 1;

FIG. 7 is a second exploded view of the spray arm assembly of FIG. 1;

FIG. 8 is a schematic structural diagram of the turntable in FIG. 1;

FIG. 9 is a schematic structural diagram of a turntable in another embodiment;

FIG. 10 is a schematic structural view of a turntable in a further embodiment;

fig. 11 is a schematic view of a spray arm assembly according to another embodiment of the first aspect of the present invention;

fig. 12 is an exploded view of the spray arm assembly of fig. 11.

The reference numbers are as follows:

a spray arm seat 100 and a central hole 101;

a rotating shaft 200;

the connecting device comprises a connecting seat 300, a connecting shaft 310, a sealing strip 311, a second fixture block 312, a swinging sleeve 320, a guide rod 321, a support rod 322, a first fixture block 323, a limiting sleeve 330, a baffle ring 331, a second clamping groove 332, a gasket 340, a supporting part 350, a slot 351, a second spray arm 360, an installing part 370 and a limiting ring 371;

the first spray arm 400, the rotating shaft 401, the water spraying hole 410, the mounting sleeve 420 and the first clamping groove 421;

the rotary table 500, the guide groove 501, the cylinder 510 and the cover plate 520;

drive assembly 600, ring gear 610, slip ring 611, planet carrier 620, planet shaft 621, support ring 622, sun gear 630, planet 640.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The dish washer is used to automatically clean tableware such as dish, chopsticks, dish, knife and fork. The full-automatic dish washing machine on the market can be divided into two types of families, such as household dish washing machines and commercial dish washing machines, the household dish washing machines are suitable for most of families at present, the dish washing machines can replace hand washing, hands of people are liberated, and the dish washing machines gradually become standard preparations of quality life. Compared with the traditional hand washing of bowls and chopsticks, the dish washing machine has the advantages of cleaning, sterilization, water and labor saving and the like. In the related art, the dish washer generally adopts a spray arm assembly to spray, and water flow is sprayed by the rotary spray arm assembly to wash the surface of the tableware under the driving of the washing pump, so that the cleaning effect is closely related to the design of the spray arm. The swing structure of the existing spray arm assembly is unstable, the defect that the spray arm is blocked exists, the function failure of swing water spraying is caused, and the cleaning effect is influenced.

Therefore, referring to fig. 1 to 7, a first aspect of the present invention provides a spray arm assembly for a dishwasher, which effectively improves the problem of spray arm jamming and improves the reliability of use.

The spray arm assembly comprises a spray arm seat 100, a rotating shaft 200, a connecting seat 300, a first spray arm 400 and a turntable 500, wherein the spray arm seat 100 is fixed on the frame of the dishwasher and used as the basis of the spray arm assembly to support the whole spray arm assembly. The spray arm base 100 is provided with a central hole 101, the rotating shaft 200 penetrates through the central hole 101 and can rotate relative to the spray arm base 100, as shown in fig. 4 and 5, the central hole 101 is a tapered hole, the inner wall of the central hole 101 is a smooth tapered surface, the lower end of the rotating shaft 200 is inserted into the central hole 101, the lower end of the rotating shaft 200 is provided with two rotating rings, the two rotating rings are provided with arc-shaped wall surfaces, and the arc-shaped wall surfaces are abutted against the inner wall of the central hole 101, so that the rotating shaft 200 can rotate freely; the outer wall of the upper part of the rotating shaft 200 is provided with a positioning ring, and the positioning ring is abutted against the upper end face of the spray arm seat 100, so that the relative axial position of the rotating shaft 200 and the spray arm seat 100 is limited, and the rotating shaft 200 is rotatably supported.

The connecting base 300 is fixed on the upper end of the rotating shaft 200, and it can be understood that the connecting base 300 is a mounting base of the spray arm, and the connecting base 300 drives the spray arm to rotate around the rotating shaft 200. The connecting shaft 310 is arranged on one side of the connecting seat 300, the axis of the connecting shaft 310 is non-parallel to the axis of the rotating shaft 200, the axis of the connecting shaft 310 is generally perpendicular to the axis of the rotating shaft 200, the connecting shaft 310 is sleeved with the swinging sleeve 320 capable of rotating relative to the connecting shaft 310, the first spraying arm 400 is fixedly connected with the swinging sleeve 320, on one hand, the swinging sleeve 320 serves as a bearing, the first spraying arm 400 can rotate relative to the connecting shaft 310, on the other hand, the swinging sleeve 320 drives the first spraying arm 400 to rotate, and the clamping stagnation risk is reduced.

Referring to fig. 1 to 4, it can be understood that the spray arm base 100, the rotation shaft 200, the connection base 300 and the first spray arm 400 have a water supply passage therein, the outer wall of the first spray arm 400 is provided with a plurality of water spray holes 410, the water spray holes 410 are communicated with the water supply passage, the washing water of the dishwasher is supplied from the spray arm base 100 and finally sprayed from the water spray holes 410, the plurality of water spray holes 410 are generally arranged in an inclined manner, and when the washing water is sprayed from the plurality of water spray holes 410, a reaction force of the sprayed water acts on the first spray arm 400, thereby pushing the first spray arm 400, the connection base 300 and the rotation shaft 200 to rotate relative to the spray arm base 100. When the dishwasher is in operation, the first spray arm 400 rotates and simultaneously sprays high-speed and high-temperature water through the plurality of water spray holes 410 to wash dishes, which is advantageous to improve the washing effect.

Moreover, the upper end of the spray arm base 100 is further connected with a turntable 500, the turntable 500 can freely rotate relative to the spray arm base 100, when the rotating shaft 200 rotates, the turntable 500 can be driven to rotate simultaneously, the turntable 500 is provided with a first guide part, the swinging sleeve 320 is provided with a second guide part, the first guide part and the second guide part are matched with each other, the turntable 500 can drive the swinging sleeve 320 and the first spray arm 400 to rotate around the connecting shaft 310, and the connecting shaft 310 and the rotating shaft 200 are arranged in a non-parallel manner, so that the water flow direction sprayed from the plurality of water spray holes 410 is changed, a continuously changed water flow can be obtained, tableware cleaning is facilitated, and the cleaning effect is improved.

When the dish washer operates, the operating principle of the spray arm component is as follows: the washing water is sprayed out from the water spraying holes 410 of the first spraying arm 400 at a high speed, the first spraying arm 400 and the connecting seat 300 are pushed to rotate around the axis of the rotating shaft 200 by using a reaction force, the connecting seat 300 drives the rotating shaft 200, the rotating shaft 200 drives the rotating disc 500 to rotate, the rotating disc 500 drives the swinging sleeve 320 to rotate through the matching of the first guide part and the second guide part, the swinging sleeve 320 drives the first spraying arm 400 to rotate around the axis of the connecting shaft 310, so that the first spraying arm 400 rotates in two directions, continuously variable water flow is sprayed out, the surface of tableware is washed at various angles, and the cleaning effect is improved; first spray arm 400 is connected in connecting axle 310 of connecting seat 300 through rocking cover 320, follows rocking cover 320 and rotates moreover, can reduce the risk of jamming, improves and uses the reliability.

Referring to fig. 2, the first guide portion is a guide groove 501 arranged around the circumferential wall of the turntable 500, the second guide portion is a guide rod 321 clamped into the guide groove 501, the axis of the guide groove 501 may be a continuously variable curve in the axial direction of the turntable 500, when the turntable 500 rotates, the rocking sleeve 320 may be driven to rotate back and forth around the connecting shaft 310 within a certain angle through the cooperation of the guide groove 501 and the guide rod 321, and the rocking sleeve 320 drives the first spray arm 400, so as to change the water spraying direction. The axis of the guide groove 501 may be a straight line or a broken line, when the turntable 500 rotates, the swing sleeve 320 may also be driven to rotate back and forth around the connecting shaft 310 within a certain angle through the cooperation of the guide groove 501 and the guide rod 321, and the swing sleeve 320 drives the first spray arm 400, so as to change the water spraying direction.

As shown in fig. 2, the guide groove 501 surrounds the turntable 500 and has a height difference, the swinging sleeve 320 is provided with a rod 322, the guide rod 321 is positioned at the end of the rod 322, and the guide rod 321 is cylindrical, so that the contact surface between the guide rod 321 and the side wall of the guide groove 501 is reduced, and the frictional resistance is reduced. Because the height of the guide groove 501 is changed in the axial direction of the turntable 500, when the turntable 500 rotates, the guide rod 321 rotates under the limitation of the turntable 500, the swing sleeve 320 rotates, the height of the guide rod 321 is changed through the support rod 322 to adapt to the change of the guide groove 501, the turntable 500 continuously rotates, and the swing sleeve 320 is driven to continuously rotate in a reciprocating manner, so that the water flow direction sprayed from the plurality of water spraying holes 410 on the first spray arm 400 is changed, a continuously changed water spraying flow can be obtained, tableware cleaning is facilitated, and the cleaning effect is improved.

Referring to fig. 8 to 10, the guide groove 501 may be designed in various specifications, the spray arm assembly includes a plurality of dials 500, each dial 500 is provided with one specification of the guide groove 501, and by replacing the dial 500, the rotation angle of the swinging sleeve 320 may be adjusted, thereby changing the direction of the sprayed water flow, which may be applied to various models of dishwashers, and improving the versatility.

It can be understood that, first guide part also can be for encircling the bulge loop of arranging on the carousel 500 perisporium, the second guide part is the recess on branch 322, the bulge loop card is gone into the recess, in the axial of carousel 500, the bulge loop is continuous change's curved shape, the width of recess is greater than the thickness of bulge loop, when carousel 500 rotates, under the effect of bulge loop, branch 322 changes the angle in order to adapt to the altitude variation of bulge loop, thereby drive and sway the cover 320 and rotate, carousel 500 rotates continuously, then drive and sway the cover 320 and reciprocate in certain angle range in succession, thereby change the rivers direction that a plurality of hole for water spraying 410 spun on first spray 400, can obtain continuous change's water jet, be favorable to wasing the tableware, improve the washing effect.

It can be understood that, first guide part can also be a plurality of driving levers of arranging on carousel 500 perisporium, the branch 322 of downwardly extending on the outer wall of second guide part for rocking cover 320, when carousel 500 rotates, the driving lever can contact branch 322 thereby drive rocking cover 320 and rotate, carousel 500 rotates in succession, stir branch 322 through a plurality of branches 322 intermittence, drive rocking cover 320 and rotate many times, thereby change the rivers direction of a plurality of hole for water spraying 410 spun on first spray arm 400, can obtain continuous variation's water jet, be favorable to wasing the tableware, improve washing effect.

Referring to fig. 4 and 5, a plurality of annular sealing strips 311 are arranged on the outer wall of the connecting shaft 310, three sealing strips 311 may be adopted, the three sealing strips 311 are distributed at intervals along the axial direction of the connecting shaft 310, and the inner wall of the swinging sleeve 320 abuts against the three sealing strips 311, so that sealing is realized and water leakage is prevented; the first spray arm 400 is provided with a mounting sleeve 420 surrounding the swing sleeve 320, and the mounting sleeve 420 and the swing sleeve 320 are in a sealing connection, so that a water delivery passage from the connecting seat 300 to the first spray arm 400 is complete, and the risk of water leakage is substantially eliminated.

It can be understood that the end of the swinging sleeve 320 facing away from the connecting seat 300 is in interference fit with the mounting sleeve 420, and sealing is achieved through interference fit; considering that the swing sleeve 320 and the installation sleeve 420 are relatively fixed, the opposite surfaces of the swing sleeve 320 and the installation sleeve 420 can be coated with sealant, and after assembly, the sealing and leakage prevention are realized by using the sealant.

Referring to fig. 6 and 7, it can be understood that, in order to axially fix the swinging sleeve 320 and the mounting sleeve 420, a first fixture block 323 is arranged on the outer wall of the swinging sleeve 320, the mounting sleeve 420 is provided with a first fixture groove 421, and the first fixture block 323 is clamped into the first fixture groove 421, so that the swinging sleeve 320 and the mounting sleeve 420 are axially fixed and prevented from being separated. Consider the demand of later maintenance dismouting, set up first draw-in groove 421 into the structure that runs through installation cover 420, when the equipment, first draw-in groove 421 of being convenient for is adjusted well with first fixture block 323, during the dismantlement, is convenient for press first fixture block 323, and it is consuming time to reduce.

Referring to fig. 4 and 5, it can be understood that the end of the connecting shaft 310 is sleeved with a limiting sleeve 330, the limiting sleeve 330 is axially fixed to the connecting shaft 310, and a stop ring 331 is disposed on an outer wall of the limiting sleeve 330, and the stop ring 331 limits the swinging sleeve 320 along the axial direction of the connecting shaft 310, so as to prevent the swinging sleeve 320 from separating from the connecting shaft 310, simplify the structure of the swinging sleeve 320, and facilitate assembly. It can be seen that the position limiting sleeve 330 is located inside the first spray arm 400, so that the shape of the position limiting sleeve 330 matches the inner space of the first spray arm 400, and the position limiting sleeve 330 does not contact the first spray arm 400, thereby preventing friction from being generated when the first spray arm 400 is used, and improving the use reliability.

Referring to fig. 4 and 5, it can be understood that a gasket 340 is connected to the position-limiting sleeve 330, the gasket 340 is O-shaped and is sleeved on the outer wall of the position-limiting sleeve 330, and the gasket 340 abuts against the end faces of the stop ring 331 and the swinging sleeve 320. Utilize gasket 340 as transition structure, avoid keeping off ring 331 and rocking cover 320 contact, gasket 340 adopts wear-resisting material and processes smooth side, reduces frictional resistance, improves life.

Referring to fig. 6 and 7, it can be understood that in order to axially fix the connecting shaft 310 and the limiting sleeve 330, a second latching block 312 is disposed on an outer wall of the connecting shaft 310, the limiting sleeve 330 is provided with a second latching groove 332, and the second latching block 312 is latched into the second latching groove 332, so that the connecting shaft 310 and the limiting sleeve 330 are axially fixed and prevented from being separated. Considering the demand of later maintenance dismouting, set up second draw-in groove 332 into the structure that runs through stop collar 330, when the equipment, the second fixture block 312 of being convenient for is adjusted well with second draw-in groove 332, and during the dismantlement, be convenient for press second fixture block 312, and it is consuming time to reduce.

Referring to fig. 1 to 4, the connection seat 300 is provided with a support portion 350, the support portion 350 is U-shaped and surrounds the first spray arm 400, the support portion 350 is arranged along the length direction of the first spray arm 400, the support portion 350 and the connection seat 300 are integrated into a whole, one end of the first spray arm 400 departing from the connection shaft 310 is supported by the support portion 350, the structural stability of the first spray arm 400 is improved, the deformation stress of the connection position of the first spray arm 400 and the connection shaft 310 is reduced, the risk of breakage is reduced, and the service life is prolonged. The support portion 350 surrounds the first spray arm 400 and provides a protective function to prevent the first spray arm 400 from being collided and pressed.

Referring to fig. 4, it can be understood that the supporting portion 350 is provided with a slot 351, one end of the first spray arm 400, which is away from the connecting shaft 310, is provided with a rotating shaft 401, the rotating shaft 401 is a cylinder with a smooth surface, the rotating shaft 401 is inserted into the slot 351 and can rotate relative to the supporting portion 350, the supporting portion 350 supports the first spray arm 400 through the rotating shaft 401, and the rotating shaft 401 can freely rotate in the slot 351 with small resistance. Considering that the first spray arm 400 is mainly influenced by gravity, the insertion groove 351 is provided with an upward opening structure, so that the first spray arm 400 can be stably supported and the assembly is convenient. Of course, a detachable press block may be provided, and the press block is mounted to the support part 350 to define the rotation shaft 401 to prevent the escape.

It can be understood that, as shown in fig. 1 to 3, one side of the connecting seat 300 is provided with the connecting shaft 310, the other side is provided with the second spray arm 360, the second spray arm 360 and the connecting seat 300 are an integral structure, a water delivery channel is also arranged inside the second spray arm 360, a plurality of water spray holes 410 communicated with the water delivery channel are also arranged on the outer wall of the second spray arm 360, the directions of the water spray holes 410 of the second spray arm 360 are opposite to those of the water spray holes 410 of the first spray arm 400, and when water flow is sprayed, the second spray arm 360 and the first spray arm 400 are matched with each other by a pushing force applied to push the connecting seat 300 to rotate. In the operation of the dishwasher, the water flow sprayed from the water spray holes 410 of the second spray arm 360 is constant in direction, while the water flow sprayed from the water spray holes 410 of the first spray arm 400 is continuously varied in direction, and the two are combined into a complicated water spray flow to wash dishes, thereby improving the washing effect.

Referring to fig. 11 and 12, in other embodiments, a connecting shaft 310 is disposed on two opposite sides of a connecting seat 300, each connecting shaft 310 is connected to a first spray arm 400 through a swinging sleeve 320, when a dishwasher is operated, washing water is sprayed out from water spray holes 410 of the two first spray arms 400 at a high speed, the two first spray arms 400 and the connecting seat 300 are pushed to rotate around an axis of a rotating shaft 200 by a reaction force, the connecting seat 300 drives the rotating shaft 200, the rotating shaft 200 drives a rotating disc 500 to rotate, the rotating disc 500 drives second guide portions of the two swinging sleeves 320 through the first guide portions, so as to drive the two swinging sleeves 320 to rotate, each swinging sleeve 320 drives one first spray arm 400 to rotate around the axis of the connecting shaft 310, so that the two first spray arms 400 rotate in two directions, the two first spray arms 400 jet continuously-changed water streams in combination, and the surfaces of dishes are washed at various angles, thereby improving the washing effect.

Referring to fig. 4 to 7, it can be understood that the spray arm base 100 is connected with a transmission assembly 600, and the transmission assembly 600 comprises a ring gear 610, a planet carrier 620, a sun gear 630 and at least two planet gears 640, wherein the two planet gears 640 are taken as an example for description. The planet carrier 620 is fixed on the spray arm base 100 and is provided with a planet shaft 621, the planet wheel 640 is rotatably connected with the planet shaft 621, the gear ring 610 is rotatably connected with the planet carrier, the sun wheel 630 is fixed on the rotating shaft 200, the planet wheel 640 is meshed with the sun wheel 630 and the gear ring 610 at the same time, and the rotating disc 500 is fixedly connected with the gear ring 610. In the operation of the dish washing machine, the rotating shaft 200 of the spray arm component drives the sun wheel 630 to rotate, because the planet carrier 620 is fixed, the sun wheel 630 drives the two planet wheels 640 to rotate, the planet wheels 640 drive the gear ring 610 and the turntable 500, the turntable 500 is mutually matched with the second guide part through the first guide part, the swinging sleeve 320 and the first spray arm 400 are driven to rotate around the connecting shaft 310, and because the connecting shaft 310 and the rotating shaft 200 are arranged in a non-parallel way, the water flow direction sprayed out of the plurality of water spray holes 410 is changed, continuously changed water flow can be obtained, the dish washing machine is beneficial to washing tableware, and the washing effect is improved.

It can be understood that the ratio of the number of teeth of the ring gear 610 to the number of teeth of the sun gear 630 is a non-integer, such as 55.

Referring to fig. 4 and 5, it can be understood that the outer wall of the planet carrier 620 is provided with a support ring 622, the lower end surface of the ring gear 610 is provided with a sliding ring 611, the end surface of the sliding ring 611 is an arc-shaped surface and abuts against the support ring 622, and the sliding ring 611 is used for realizing rotation, and the arc-shaped surface reduces friction resistance; the turntable 500 has a cylinder 510, the gear ring 610 is embedded in the inner wall of the cylinder 510, and the gear ring 610 simultaneously serves as a bearing for the turntable 500, supports the turntable 500, and provides a rotating structure, thereby simplifying installation.

Referring to fig. 4 and 5, it can be understood that the connection holder 300 is provided with a mounting part 370, the mounting part 370 has a through hole to form a water delivery channel, the rotation shaft 200 is inserted into the through hole and fixed to the mounting part 370, the outer wall of the mounting part 370 is provided with a limiting ring 371, the inner wall of the end of the cylinder 510 facing the connection holder 300 is provided with a radially extending cover plate 520, the cover plate 520 abuts against the lower side surface of the limiting ring 371, the positions of the gear ring 610 and the rotation disc 500 in the axial direction of the rotation shaft 200 are limited by the limiting ring 371 and the support ring 622, so that the rotation disc 500 can drive the swinging sleeve 320 and the first spray arm 400, and the use reliability is provided.

The embodiment of the second aspect of the utility model provides a dishwasher, dishwasher include inner bag (not shown in the figure), bowl basket (not shown in the figure) and the spray arm subassembly of the embodiment of the first aspect, and bowl basket and spray arm subassembly are located the inside of inner bag, and the spray arm subassembly is arranged in the below of bowl basket, and the tableware is placed in the bowl basket, and the spray arm subassembly is followed the below and is sprayed water to the bowl basket in order to wash the tableware. The spray arm assembly comprises a spray arm seat 100, a rotating shaft 200, a connecting seat 300, a first spray arm 400 and a turntable 500, wherein the spray arm seat 100 is fixed on the frame of the dishwasher, the spray arm seat 100 is provided with a central hole 101, the rotating shaft 200 penetrates through the central hole 101 and can rotate relative to the spray arm seat 100, the connecting seat 300 is fixed at the upper end of the rotating shaft 200, and it can be understood that the connecting seat 300 is an installation base of the spray arm and the connecting seat 300 drives the spray arm to rotate around the rotating shaft 200. The connecting shaft 310 is arranged on one side of the connecting seat 300, the axis of the connecting shaft 310 is non-parallel to the axis of the rotating shaft 200, the axis of the connecting shaft 310 is generally perpendicular to the axis of the rotating shaft 200, the connecting shaft 310 is sleeved with the swinging sleeve 320 capable of rotating relative to the connecting shaft 310, the first spraying arm 400 is fixedly connected with the swinging sleeve 320, on one hand, the swinging sleeve 320 serves as a bearing, the first spraying arm 400 can rotate relative to the connecting shaft 310, on the other hand, the swinging sleeve 320 drives the first spraying arm 400 to rotate, and the clamping stagnation risk is reduced.

Referring to fig. 1 to 4, it can be understood that the spray arm base 100, the rotation shaft 200, the connection base 300 and the first spray arm 400 have a water delivery passage communicating with each other therein, the outer wall of the first spray arm 400 is provided with a plurality of water spray holes 410, the water spray holes 410 communicate with the water delivery passage, the washing water of the dishwasher is input from the spray arm base 100 and finally sprayed from the water spray holes 410, the plurality of water spray holes 410 are generally arranged obliquely, and when the washing water is sprayed from the plurality of water spray holes 410, a reaction force of the sprayed water acts on the first spray arm 400, thereby pushing the first spray arm 400, the connection base 300 and the rotation shaft 200 to rotate relative to the spray arm base 100. When the dishwasher is in operation, the first spray arm 400 rotates and at the same time, the water spray holes 410 spray high-speed and high-temperature water to wash the dishes, which is beneficial to improving the washing effect.

Moreover, the upper end of the spray arm base 100 is further connected with a turntable 500, the turntable 500 can freely rotate relative to the spray arm base 100, when the rotating shaft 200 rotates, the turntable 500 can be driven to rotate simultaneously, the turntable 500 is provided with a first guide part, the swinging sleeve 320 is provided with a second guide part, the first guide part and the second guide part are matched with each other, the turntable 500 can drive the swinging sleeve 320 and the first spray arm 400 to rotate around the connecting shaft 310, and the connecting shaft 310 and the rotating shaft 200 are arranged in a non-parallel manner, so that the water flow direction sprayed from the plurality of water spray holes 410 is changed, a continuously changed water flow can be obtained, tableware cleaning is facilitated, and the cleaning effect is improved.

When the dish washer operates, the operating principle of the spray arm component is as follows: the washing water is sprayed out from the water spraying holes 410 of the first spraying arm 400 at a high speed, the first spraying arm 400 and the connecting seat 300 are pushed to rotate around the axis of the rotating shaft 200 by using a reaction force, the connecting seat 300 drives the rotating shaft 200, the rotating shaft 200 drives the rotating disc 500 to rotate, the rotating disc 500 drives the swinging sleeve 320 to rotate through the matching of the first guide part and the second guide part, the swinging sleeve 320 drives the first spraying arm 400 to rotate around the axis of the connecting shaft 310, so that the first spraying arm 400 rotates in two directions, continuously variable water flow is sprayed out, the surface of tableware is washed at various angles, and the cleaning effect is improved; the first spray arm 400 is connected to the connecting shaft 310 of the connecting seat 300 through the swinging sleeve 320 and rotates along with the swinging sleeve 320, so that the risk of clamping stagnation can be reduced, and the use reliability can be improved.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (16)

1. Spray arm subassembly, its characterized in that includes:

the spray arm seat is provided with a central hole;

the rotating shaft penetrates through the central hole and can rotate;

the connecting seat is fixed at the end part of the rotating shaft, one side of the connecting seat is provided with a connecting shaft, and the connecting shaft is sleeved with a rotatable swinging sleeve;

the first spray arm is fixedly connected to the swinging sleeve;

the carousel rotate connect in spout the arm seat, the pivot drive the carousel rotates, the carousel is provided with first guide part, it is provided with the cooperation to sway the cover the second guide part of first guide part, the carousel passes through first guide part with the cooperation of second guide part drives first spray arm rotates to change the water spray direction.

2. The spray arm assembly of claim 1, wherein the first guide portion is a guide groove circumferentially disposed on a peripheral wall of the turntable, and the second guide portion is a guide bar snapped into the guide groove.

3. The spray arm assembly of claim 2 wherein the axis of the guide slot is a continuously varying curve in the axial direction of the turntable.

4. The spray arm assembly of claim 2 wherein said turret has a plurality of said turrets, each of said turrets being provided with one gauge of said guide slot.

5. The spray arm assembly of any one of claims 1 to 4, wherein the outer wall of the connecting shaft is provided with a plurality of annular sealing strips, the inner wall of the rocker sleeve abuts against the sealing strips, the first spray arm is provided with a mounting sleeve surrounding the rocker sleeve, and the mounting sleeve and the rocker sleeve are in sealing connection.

6. The spray arm assembly of claim 5, wherein the outer wall of the swinging sleeve is provided with a first clamping block, the mounting sleeve is provided with a first clamping groove, and the first clamping block is arranged in the first clamping groove.

7. The spray arm assembly as claimed in any one of claims 1 to 6, wherein a limiting sleeve is sleeved on an end of the connecting shaft, a baffle ring is arranged on an outer wall of the limiting sleeve, and the baffle ring limits the swinging sleeve along an axial direction of the connecting shaft.

8. The spray arm assembly of claim 7 wherein the stop collar is coupled to a spacer that abuts both the stop ring and an end surface of the wobble sleeve.

9. The spray arm assembly of claim 7, wherein a second clamping block is disposed on an outer wall of the connecting shaft, a second clamping groove is disposed on the limiting sleeve, and the second clamping block is disposed on the second clamping groove.

10. Spray arm assembly according to one of claims 1 to 9, characterized in that the connecting socket is provided with a support which surrounds the first spray arm and which supports an end of the first spray arm facing away from the connecting shaft.

11. The spray arm assembly of claim 10 wherein said support portion is provided with a slot, and wherein an end of said first spray arm remote from said connection shaft is provided with a pivot shaft, said pivot shaft being inserted into said slot and rotatable relative to said support portion.

12. The spray arm assembly according to any one of claims 1 to 11, wherein the connecting base is provided with two connecting shafts, the two connecting shafts are symmetrically arranged on two sides of the connecting base, and the first spray arms correspond to the connecting shafts one to one.

13. The spray arm assembly according to any one of claims 1 to 11, wherein a transmission assembly is connected to the spray arm base, the transmission assembly comprises a ring gear, a planet carrier, a sun gear and at least two planet gears, the planet carrier is fixed to the spray arm base and is provided with a planet shaft, the planet gears are rotationally connected to the planet shaft, the ring gear is rotationally connected to the planet carrier, the sun gear is fixed to the rotating shaft, the planet gears are meshed with the sun gear and the ring gear at the same time, and the rotating disc is fixedly connected to the ring gear.

14. The spray arm assembly of claim 13, wherein the outer wall of the planet carrier is provided with a support ring, the end surface of the gear ring is provided with a sliding ring, the end surface of the sliding ring is an arc-shaped surface and abuts against the support ring, the turntable is provided with a barrel, and the gear ring is embedded in the inner wall of the barrel.

15. The spray arm assembly of claim 14, wherein the connecting base is provided with a mounting portion having a through hole, the shaft is inserted into the through hole, the outer wall of the mounting portion is provided with a limit ring, the inner wall of the barrel facing the end portion of the connecting base is provided with a radially extending cover plate, and the cover plate abuts against the limit ring.

16. A dishwasher comprising a tub, a bowl basket and the spray arm assembly of any of claims 1 to 15, the bowl basket and the spray arm assembly being located inside the tub, the spray arm assembly being located below the bowl basket.

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