CN215227356U - Water inlet structure of spray arm assembly, spray arm assembly and dish washing machine - Google Patents

Abstract

The utility model discloses a water inlet structure, spray arm subassembly and dish washer of spray arm subassembly, the water inlet structure of spray arm subassembly includes: the water distribution piece is provided with a water inlet channel and a water outlet connected with the water inlet channel; the water passing pipe is provided with a water passing channel which is communicated with the water outlet, and the water passing pipe can rotate relative to the water distribution piece; the water pipe penetrates through the mounting through hole to be matched with the water distribution piece; the supporting piece is matched in the matching groove, and the water passing pipe is rotatably arranged in the supporting piece in a penetrating way; joint spare, joint spare and water pipe joint cooperation, joint spare are used for spacing water pipe and support piece. According to the utility model discloses spray arm assembly's water inlet structure can advance water and drive the spray tube rotation to the spray tube through the water pipe, has advantages such as compact structure is reliable.

Description

Water inlet structure of spray arm assembly, spray arm assembly and dish washing machine

Technical Field

The utility model relates to an electrical apparatus makes technical field, particularly, relates to a spray arm subassembly advance water structure, have the spray arm subassembly of the structure of advancing water of spray arm subassembly and have the dish washer of spray arm subassembly.

Background

In the related art, the dishwasher is washed using a rotatable bar-type spray arm, and the rotation axis of the spray arm is perpendicular to the length direction thereof, and thus, it is necessary to provide a sufficient installation space to install the spray arm to ensure that the bar-type spray arm can normally rotate. Therefore, how to reduce the rotation space required by the spray arm while realizing the fixation and the support of the spray arm becomes a problem for the research of technicians.

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's structure of intaking, this spray arm subassembly's structure of intaking can intake and drive the spray tube through the driving piece to the spray tube and rotate, has advantages such as compact structure is reliable.

The utility model discloses still provide one kind and have the spray arm subassembly of the structure of intaking of spray arm subassembly.

The utility model discloses still provide a dish washer that has spray arm subassembly.

In order to achieve the above object, according to an embodiment of the first aspect of the present invention, a water inlet structure of a spray arm assembly is provided, the water inlet structure of the spray arm assembly includes: the water distribution piece is provided with a water inlet channel and a water outlet connected with the water inlet channel; the water passing pipe is provided with a water passing channel which is communicated with the water outlet, and the water passing pipe can rotate relative to the water distribution piece; the water distribution piece is provided with a water distribution hole, and the water distribution piece is matched with the water distribution hole; the supporting piece is matched in the matching groove, and the water passing pipe is rotatably arranged in the supporting piece in a penetrating way; the joint spare, the joint spare with the cooperation of water pipe joint, the joint spare is used for right the water pipe with support piece carries on spacingly.

According to the utility model discloses spray arm assembly's water inlet structure can intake to the spray tube through the driving piece and drive the spray tube and rotate, has advantages such as compact structure is reliable.

In addition, the water inlet structure of the spray arm assembly according to the present invention can also have the following additional technical features:

according to some embodiments of the utility model, the joint spare is in the axial of water pipe is right the water pipe with support piece carries on spacingly.

According to the utility model discloses a some embodiments, the outer peripheral face of water pipe has the joint groove, joint spare cover is established the periphery wall of water pipe, joint spare is equipped with the joint arch, the joint arch is suitable for the cooperation to be in the joint inslot, with the restriction the water pipe is to keeping away from the direction removal of water distribution spare.

According to some embodiments of the utility model, the joint spare with support piece orientation a side end face contact cooperation of water distribution spare, in order to restrict support piece breaks away from the cooperation groove.

According to some embodiments of the utility model, the water distribution piece has first fitting surface, the delivery port is formed at first fitting surface, the ascending one end of water pipe axial with first fitting surface contact cooperation.

According to some embodiments of the utility model, first fitting surface is equipped with the orientation the cooperation sleeve that the water pipe extends, cooperation telescopic internal perisporium with be equipped with first sealing member between the water pipe.

According to the utility model discloses a some embodiments, the joint spare is the annular cardboard, the cooperation groove has the opening towards one side of water distribution spare, the inner formation of annular cardboard is into the joint is protruding, the outer end of annular cardboard be suitable for with the shell contact cooperation.

According to some embodiments of the present invention, the water inlet structure of the spray arm assembly further comprises: the fixed cover is fixedly connected with the water distribution piece and the shell respectively, the fixed cover is provided with a limiting hole, and the water passing pipe penetrates through the limiting hole.

According to some embodiments of the utility model, fixed lid the shell with the installation cavity is injectd to the water pipe, joint spare is located in the installation cavity.

According to some embodiments of the utility model, be equipped with the second sealing member in the installation cavity, the second sealing member centre gripping is in the water pipe with between the fixed lid, fixed lid has the holding tank, be equipped with the third sealing member in the holding tank, the third sealing member centre gripping is in fixed lid with between the water distribution spare.

According to the utility model discloses a some embodiments, joint spare is the pull ring, the pull ring is equipped with spacing boss, the outer peripheral face of water pipe be equipped with spacing boss complex spacing cooperation boss, spacing boss with the joint is protruding the interval sets up in the axial of pull ring.

According to some embodiments of the utility model, the axis of rotation of water pipe is followed the axial extension of water pipe, the structure of intaking still includes: the driving piece is used for driving the water passing pipe to rotate.

According to some embodiments of the utility model, the driving piece is gear spare, the water pipe runs through the middle part of driving piece and with driving piece integrated into one piece, the water pipe includes first pipeline section and second pipeline section, first pipeline section is located one side of main part and with the water distribution piece cooperatees, the second pipeline section is located the opposite side of driving piece.

According to some embodiments of the invention, the support member is a ball bearing.

According to the utility model discloses an embodiment of second aspect provides a domestic appliance's spray arm subassembly, domestic appliance's spray arm subassembly includes: a water intake structure of the spray arm assembly according to an embodiment of the first aspect of the present invention; the spray pipe, the spray pipe with water pipe fixed connection, the axis of rotation of spray pipe is on a parallel with the axis of spray pipe, the spray pipe has the cavity of crossing water, cross the cavity of water with water channel intercommunication.

According to the utility model discloses domestic appliance's spray arm subassembly, through utilizing according to the utility model discloses an embodiment of first aspect the spray arm subassembly intake structure, intake structure can intake to the spray tube through the water pipe and drive the spray tube rotation, has advantages such as compact structure is reliable.

Embodiments according to a third aspect of the present invention provide a dishwasher comprising a spray arm assembly of a household appliance according to embodiments of the second aspect of the present invention.

According to the utility model discloses dish washer, through utilizing according to the utility model discloses an embodiment of second aspect domestic appliance's spray arm subassembly, the structure of intaking can be through the water pipe to the spray tube intaking and drive the spray tube rotation, has advantages such as compact structure is reliable.

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

The above and/or 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 water intake structure of a spray arm assembly according to some embodiments of the present invention.

Fig. 2 is a partial sectional view at a in fig. 1.

Fig. 3 is an exploded view of a water intake structure of a spray arm assembly according to some embodiments of the present invention.

Fig. 4 is a schematic structural diagram of a dishwasher according to an embodiment of the present invention.

Fig. 5 is a partial exploded view of a spray arm assembly according to an embodiment of the present invention.

Fig. 6 is a partial schematic view of a spray arm assembly according to further embodiments of the present invention.

Fig. 7 is a sectional view at B in fig. 6.

Fig. 8 is an exploded view of a water intake structure of a spray arm assembly according to further embodiments of the present invention.

Fig. 9 is a schematic structural view of a water inlet structure of a spray arm assembly according to other embodiments of the present invention.

Fig. 10 is a sectional view at B in fig. 9.

Fig. 11 is a partially enlarged view of fig. 9.

Fig. 12 is a partial exploded view of a spray arm assembly according to an embodiment of the present invention.

Fig. 13 is a partial schematic structural view of a spray arm assembly according to an embodiment of the present invention.

Fig. 14 is a sectional view at C in fig. 13.

Fig. 15 is a cross-sectional view at D in fig. 13.

Reference numerals: the water inlet structure 1, the water distribution piece 100, the water inlet channel 101, the water outlet 102, the first matching surface 110, the matching sleeve 120, the first sealing piece 130, the first water inlet pipe section 140, the second water inlet pipe section 150,

Gear part 200, water passing channel 201, clamping groove 202, driving part 210, water passing pipe 220, limit matching boss 221, transmission part 300,

A housing 400, a mounting opening 401, a mating groove 402,

A clamping piece 500, a clamping bulge 510,

A support member 600,

The fixing cover 700, the limiting hole 710, the mounting cavity 720, the second sealing member 730, the receiving groove 740, the third sealing member 750, the nozzle 2, the water passing cavity 21, the fixing ring 22, the fixing buckle 23, the sealing ring 24, the liner assembly 3, the first fixing member 31, the second fixing member 32, the back plate 33 and the external thread cover 34.

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 drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The water inlet structure 1 of the spray arm assembly according to the embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 15, the water inlet structure 1 of the spray arm assembly according to an embodiment of the present invention may include a water distribution member 100, a water passing pipe 220, a housing 400, a clamping member 500, and a support member 600.

For example, in some embodiments, the spray arm assembly of the present invention may include a spray pipe 2 and a water inlet structure 1, and the spray pipe 2 and the water inlet structure 1 may be applied to a dishwasher. Further, the spray pipe 2 and the water inlet structure 1 can be installed in a washing cavity of the dishwasher, and the water inlet structure 1 supplies water to the spray pipe 2, so that the washing water sprayed by the spray pipe 2 is used for spraying and washing the dishware to be washed in the washing cavity.

Of course, in other embodiments, the water inlet structure 1 of the spray arm assembly may also be applied to electrical equipment such as a steam sterilizer, a clothes treatment device, and the like, and the water inlet structure 1 may supply water or air to the spray pipe 2 to perform spray disinfection or spray washing using the spray pipe 2.

In the following embodiments of the present invention, the water inlet structure 1 will be described by taking an example of application to a dishwasher.

For example, in some examples, the spray arm assembly may include a water dispenser 100, a water pipe 220, and a spray tube 2, the water dispenser 100 being fixedly disposed within the dishwasher, and the water dispenser 100 may communicate with the spray tube 2 through the water pipe 220 for supplying water to the spray tube 2. One end of the water distributing member 100 is connected to an external water source and the other end has a water distributing joint adapted to communicate with the water passing pipe 220 to supply water to the water passing pipe 220 through the water distributing member 100. The water pipe 220 is rotatable relative to the water distribution member 100, i.e. the water pipe 220 is rotatably arranged in the dishwasher, such that the water pipe 220 is connected to the spray tube 2, the water pipe 220 can drive the spray tube 2 to rotate, and the rotation axis of the spray tube 2 extends along the length direction thereof, i.e. the rotation axis of the spray tube 2 extends along the axial direction thereof. Thus, the spout 2 rotates with the draft tube 220, and the spout 2 is in fluid communication with the draft tube 220. The pipe wall of the spray pipe 2 is provided with a plurality of spray holes for spraying water flow, so that the water inflow can flow into the spray pipe 2 after passing through the water distribution member 100 and the water passing pipe 220 to wash the dishware to be washed in the washing cavity. Meanwhile, the water pipe 220 can drive the spray pipe 2 to rotate, so that the spraying range of the spray pipe 2 is enlarged, the rotation stability and the reliability of the spray pipe 2 are improved, the spray pipe 2 can be ensured to have a proper spraying angle, and the spraying and washing effect of the spray arm assembly is improved.

Of course, in other examples, the water conduit 220 may be integrally formed with the spout 2, i.e., the water conduit 220 may be formed as part of the spout 2 such that the spout 2 may be in direct communication with the water dispenser 100. The utility model discloses in, water distribution 100 of inlet structure 1 is fixed to be set up in the dish washer, and water distribution 100 has inhalant canal 101 and water inlet, the delivery port 102 that links to each other with inhalant canal 101, and the water inlet is suitable for the running water tap who locates with outside water source and links to each other. The water pipe 220 is provided with a water passage 201, the water passage 201 is communicated with the water outlet 102, and the water pipe 220 can rotate relative to the water distribution member 100. One end of the water passage 201 is communicated with the water outlet 102 and the other end is connected with the spray pipe 2. The housing 400 has a mounting opening 401 and a fitting groove 402, and the water feed pipe 220 can pass through the mounting opening 401 to be fitted to the water dispenser 100. The supporting member 600 is adapted to fit into the fitting groove 402, and the water pipe 220 is rotatably disposed through the supporting member 600, in other words, the supporting member 600 can be sleeved on the outer peripheral wall of the water pipe 220, so that the water pipe 220 rotates relative to the supporting member 600. The joint 500 can carry out the joint cooperation with the water pipe 220, and the joint 500 can be used for spacing water pipe 220 and support piece 600.

According to the utility model discloses water inlet structure 1 of spray arm subassembly is through forming the rivers passageway between water distribution 100, water pipe 220 and spray tube 2. The functional of multiplicable water pipe 220 like this not only can utilize water pipe 220 to drive spray tube 2 and rotate, guarantees that spray tube 2 can rotate reliably and steadily, and the accurate control spray tube 2 of being convenient for sprays the angle, makes spray tube 2 can have suitable injection angle, is convenient for improve the washing effect that sprays of spray arm subassembly, and the increase spray tube 2 of being convenient for sprays the scope, improves the washing effect of dish washer. Moreover, through the channel that forms fluid intercommunication between water distribution member 100, water passing pipe 220 and spray tube 2, when needing to supply water to spray tube 2, can be through water distribution member 100 and water passing pipe 220 will intake and introduce in spray tube 2, be convenient for realize smoothly intaking of spray tube 2.

From this, the structure of intaking 1 will be in the same place the function of intaking and the driving function integration of spray tube 2, not only can avoid the structure of intaking 1 to rotate the in-process at spray tube 2 and take place to interfere, guarantee that this kind of spray tube 2 can normally intake, normal rotation, can make the rational compactness more ground of the inner structure of dish washer moreover, improve the inside space utilization of dish washer, thereby be convenient for control dish washer's volume, reduce the occupation space of dish washer.

Moreover, the water pipe 220 can be installed and positioned through the shell 400 and the water distribution member 100, so that the assembly reliability and stability of the water pipe 220 are ensured. Through setting up joint piece 500 both can carry on spacingly to water pipe 220, can carry on spacingly again to support piece 600, in other words, can realize spacing to support piece 600 and water pipe 220 through setting up a joint piece 500. Can reduce the part number of structure of intaking 1 like this, save and set up spacing structure respectively alone to support piece 600 and water pipe 220, be convenient for make structure of intaking 1's design simpler with the manufacturing, be convenient for reduce structure of intaking 1's occupation space, make structure of intaking 1 small and exquisite compacter, still be convenient for reduce the resistance of intaking, improve structure of intaking 1's the pressure of intaking, reduce structure of intaking 1's cost. Therefore, according to the utility model discloses the inlet structure 1 of spray arm subassembly can be through the water pipe 220 to the spray tube 2 intaking and drive spray tube 2 and rotate, has advantages such as compact structure is reliable.

The water inlet structure 1 of the spray arm assembly according to the embodiment of the present invention will be described with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 15, the water inlet structure 1 of the spray arm assembly according to embodiments of the present invention includes a water distribution member 100, a water passing pipe 220, a housing 400, a clamping member 500, and a supporting member 600.

Alternatively, in some examples, the support 600 may be a bearing, for example the support 600 may be a ball bearing, which is one type of rolling bearing, and may include balls, an inner ring, an outer ring, and a retainer. The ball can be a spherical alloy steel ball, the inner ring can be a steel ring, and the outer ring can be a steel ring. The spherical alloy steel balls are arranged between the inner steel ring and the outer steel ring, so that the friction force in the power transmission process is reduced and the transmission efficiency of mechanical power is improved in a rolling mode. That is, the support member may be a ball bearing, and the relative rotation of the water passing pipe 220 and the housing 400 is achieved by the rolling of the balls.

Of course, in other examples, the bearing 600 may be replaced by a plastic ring structure.

In some embodiments of the present invention, as shown in fig. 8 to 10, the water passage 201 may be formed in the water pipe 220 and extend along the axial direction of the water pipe 220, and the joint member 500 may be connected to the water pipe 220, so that the joint member 500 may respectively limit the water pipe 220 and the supporting member 600 in the axial direction of the water pipe 220. Utilize joint piece 500 can improve the reliability that sets up of water pipe 220 like this, avoid water pipe 220 and distribution piece 100 to break away from the cooperation, utilize joint piece 500 can improve support piece 600's reliability that sets up simultaneously, avoid support piece 600 and shell 400 to break away from the cooperation to in the working property of guaranteeing into water structure 1.

It should be understood that the clamping member 500 may limit the water pipe 220 in one axial direction of the water pipe 220, may limit the water pipe 220 in both axial directions of the water pipe 220, and may also limit the supporting member 600. For example, the axial direction of the water pipe 220 extends in the front-rear direction, and the clamping member 500 may limit the water pipe 220 in both the front-rear direction to prevent the water pipe 220 from moving forward and backward.

Specifically, as shown in fig. 9, the outer circumferential surface of the water pipe 220 may have a clamping groove 202, the clamping member 500 is substantially annular, the clamping member 500 is adapted to be sleeved on the outer circumferential wall of the water pipe 220, the clamping member 500 is provided with a clamping protrusion 510, and the clamping protrusion 510 is adapted to be fitted in the clamping groove 202, so that the water pipe 220 is limited from moving in a direction away from the water distribution member 100. For example, the water distribution member 100 is disposed behind the water pipe 220, and the snap member 500 can limit the water pipe 220 from moving forward. This prevents the water passing pipe 220 from being dropped out of the water distribution member 100 due to the impact of water.

More specifically, there may be one or more clamping grooves 202, one or two clamping protrusions 510, and the clamping protrusions 510 may be fitted into the corresponding clamping grooves 202 in a one-to-one correspondence.

Alternatively, as shown in fig. 9, the snap member 500 may be in contact engagement with an end surface of the support member 600 facing the water distribution member 100, which may restrict the support member 600 from being disengaged from the engagement groove 402. For example, the clip member 500 is disposed behind the supporting member 600, and the front end of the clip member 500 can be in contact with the rear end surface of the supporting member 600, so as to limit the supporting member 600 from moving backwards, and prevent the supporting member 600 from moving and separating from the engaging groove 402. Therefore, reliable limiting of the clamping piece 500 to the supporting piece 600 is facilitated, and assembling stability and reliability of the supporting piece 600 are improved.

In some embodiments, as shown in fig. 2, the water distributing member 100 may have a first mating surface 110, the first mating surface 110 may be a plane surface, the water outlet 102 is formed on the first mating surface 110, one end of the water pipe 220 in the axial direction is suitable for contacting and mating with the first mating surface 110, and the other end is suitable for driving connection with the nozzle 2. Therefore, the water pipe 220 is conveniently positioned, the reliable matching between the water pipe 220 and the water distribution piece 100 is realized, the joint of the water pipe 220 and the water distribution piece 100 is conveniently and effectively sealed, and a reliable and sealed water flow channel is formed between the water pipe 220 and the water distribution piece 100.

For example, the water distribution member 100 is fixedly disposed on a rear sidewall of a washing chamber of a dishwasher (the front-back direction is shown in fig. 2, it should be understood that the front-back direction is only limited for convenience of description of the structure, and is not limited to the actual arrangement direction of the structure in the dishwasher of the present invention), the water distribution member 100 generally extends along the vertical direction, one side of the water distribution member 100 facing the water pipe 220 has a water distribution joint, the front side of the water distribution joint has a first fitting surface 110, the first fitting surface 110 is a vertically extending plane, and the water outlet 102 is formed on the first fitting surface 110. The water pipe 220 is provided with a water pipe 220, the end surface of the rear end of the water pipe 220 is in contact fit with the first fitting surface 110, and the front end of the water pipe 220 is in transmission connection with the spray pipe 2. Wherein, spray tube 2 can be the pipe, and spray tube 2 can be a plurality of, and a plurality of spray tubes 2 extend and set up along left right direction interval along the fore-and-aft direction in the washing intracavity (left right direction is as shown in fig. 3, it should be understood here that the restriction of left right direction is only for the convenience of the description of structure, and is not right the utility model discloses in the dish washer actual direction that sets up of structure). The water passing pipe 220 may be a circular pipe, and water passing channels 201 opened at both axial sides of the water passing pipe 220 may be formed in the water passing pipe 220 so that the water passing pipe 220 can communicate with the water distribution member 100 and the nozzle 2, respectively. Therefore, the water pipe 220 is conveniently positioned, the reliable matching between the water pipe 220 and the water distribution piece 100 is realized, the joint of the water pipe 220 and the water distribution piece 100 is conveniently and effectively sealed, and a reliable and sealed water flow channel is formed between the water pipe 220 and the water distribution piece 100.

Specifically, as shown in fig. 2, the water inlet structure 1 may further include a first sealing member 130, the first fitting surface 110 may be provided with a fitting sleeve 120 extending toward the water pipe 220, an inner circumferential wall of the fitting sleeve 120 is spaced apart from an outer circumferential wall of the water pipe 220, and the first sealing member 130 may be disposed between the inner circumferential wall of the fitting sleeve 120 and the outer circumferential wall of the water pipe 220. Thus, by providing the fitting sleeve 120, the assembly of the water pipe 220 can be positioned and guided, facilitating accurate installation of the water pipe 220. Moreover, the arrangement space of the first sealing member 130 can be formed, and the arrangement reliability of the first sealing member 130 is ensured, so that the first sealing member 130 can be used for sealing the joint between the water passing pipe 220 and the water distribution member 100, the sealing effect is improved, and the water leakage is avoided.

For example, the first mating surface 110 may be provided with a mating sleeve 120 extending forward, a rear end of the mating sleeve 120 is connected to the first mating surface 110, and a front end of the mating sleeve 120 forms an opening. The water conduit 220 is adapted to fit within the mating sleeve 120 through the opening, and the mating sleeve 120 is spaced from the water conduit 220. Further, the mating sleeve 120 may include a straight cylinder section and an outward-expanding section connected to the straight cylinder section, the cross-sectional area of the outward-expanding section being larger than that of the straight cylinder section, the outward-expanding section being located in front of the straight cylinder section. The first sealing element 130 is detachably arranged in the straight cylinder section, the first sealing element 130 is formed into a closed sealing ring, the sealing ring is sleeved on the outer side of the water passing pipe 220, after installation is completed, the inner circumferential surface of the sealing ring is suitable for being in press fit with the water passing pipe 220, and the outer circumferential surface of the sealing ring is suitable for being in press fit with the inner circumferential wall of the straight cylinder section.

In some embodiments, as shown in fig. 3, the gear assembly 200 may include a driving member 210 and a water pipe 220, the driving member 210 is used for being in transmission fit with a superior transmission member, the water pipe 220 is connected with the driving member 210, and the water passage 201 is formed in the water pipe 220. It should be understood that the driving member 210 and the water pipe 220 may be two separate structural members or may be an integral member. Not only can utilize the water pipe 220 transmission power like this to drive spray tube 2 and rotate, can utilize water pipe 220 to provide into water to spray tube 2 moreover, guarantee that spray tube 2 can normally work.

For example, the driving member 210 and the water pipe 220 are integrally formed as a driven gear member, and the upper transmission member may be formed as a driving gear member. Driven gear spare includes driving piece 210 and water pipe 220, and the outer border of driving piece 210 is formed with driven tooth, and driving piece 210 can link to each other with the transmission of driving gear spare through driven tooth, and the middle part of driving piece 210 has the via hole of following thickness direction and link up, and water pipe 220 can wear to establish in this via hole, is formed with water channel 201 in the water pipe 220, and water channel 201 intercommunication water distribution spare 100 and spray tube 2. Not only can utilize the water pipe 220 transmission power like this to drive spray tube 2 and rotate, can utilize water pipe 220 to provide into water to spray tube 2 moreover, guarantee that spray tube 2 can normally work.

Specifically, as shown in fig. 2, the clamping member 500 is a ring-shaped clamping plate, one side of the matching groove 402 facing the water distributing member 100 is provided with an opening, the inner end of the ring-shaped clamping plate is formed into a clamping protrusion 510, and the outer end of the ring-shaped clamping plate is suitable for contact matching with the casing 400. Can fix a position joint spare 500 like this, be convenient for realize the joint cooperation of water pipe 220 and joint spare 500, be convenient for improve assembly efficiency and joint strength.

For example, the outer peripheral surface of the water passing pipe 220 has an annular clamping groove 202 extending along the circumferential direction, the clamping piece 500 can be formed into an annular clamping plate, the annular clamping plate has a notch penetrating along the axial direction of the annular clamping plate, and the annular clamping plate can elastically deform. After the installation of annular cardboard is accomplished, the outer peripheral face of water pipe 220 can be banded to the annular cardboard, realizes the reliable connection between annular cardboard and the water pipe 220. Further, the inner end of the annular clamping plate in the radial direction is suitable for being matched in the clamping groove 202, and the outer end of the annular clamping plate in the radial direction is suitable for being in lap joint with the outer shell 400 so as to limit the axial direction of the water passing pipe 220. Can fix a position joint spare 500 like this, be convenient for realize the joint cooperation of water pipe 220 and joint spare 500, be convenient for improve assembly efficiency and joint strength.

In other embodiments of the present invention, as shown in fig. 10, the water inlet structure 1 may further include a fixing cover 700, the fixing cover 700 may be respectively fixedly connected to the water distributing member 100 and the housing 400, the fixing cover 700 may have a limiting hole 710, and the water pipe 220 is adapted to be inserted into the limiting hole 710. For example, the water inlet structure 1 may further include a fixing cover 700, the fixing cover 700 and the housing 400 are fixed together by a screw fastening structure, and the fixing cover 700 is snap-fixed with the water distributing member 100. The fixing cover 700 may be formed with a limiting hole 710, and the water passing pipe 220 is adapted to be inserted into the limiting hole 710. Therefore, the fixing cover 700 can be used for limiting the water passing pipe 220, the water passing pipe 220 can be prevented from shaking, and the reliability life of the water passing pipe 220 is prolonged.

Specifically, as shown in fig. 10, the fixing cover 700, the housing 400 and the water passing pipe 220 may define a mounting cavity 720, and the snap 500 may be provided in the mounting cavity 720. This facilitates the installation of the connector.

More specifically, as shown in fig. 10, a second sealing member 730 may be provided in the installation cavity 720, the second sealing member 730 is adapted to be clamped between the water passing pipe 220 and the fixing cap 700, the fixing cap 700 may have a receiving groove 740, a third sealing member 750 may be provided in the receiving groove 740, and the third sealing member 750 is adapted to be clamped between the fixing cap 700 and the water distributing member 100. Thus, by providing the second sealing member 730, the washing water may be prevented from entering the supporter 600. Since the washing water is contaminated, the inner surface of the casing 400 of the supporter 600 may be deposited with sludge after a long time, which may affect the rotation of the glass balls of the supporter 600, thereby causing the reliability of the supporter 600 to be deteriorated. Meanwhile, the washing water may be prevented from leaking from the connection of the fixing cover 700 and the water dispenser 100 by the provision of the third sealing member 750.

Alternatively, as shown in fig. 10, the clamping member 500 may be a pull ring, the pull ring may be provided with a limiting boss, the outer circumferential surface of the water pipe 220 may be provided with a limiting matching boss 221 which is matched with the limiting boss for limiting, and the limiting boss may be spaced from the clamping protrusion 510 in the axial direction of the pull ring. Through the cooperation relation between water pipe 220 and joint piece 500 like this, can restrict water pipe 220 and remove to the direction of being close to the water distribution pipe or keeping away from the water distribution pipe, further be convenient for improve water pipe 220 set up accuracy and stability. It is to be understood here that the tab is capable of elastic deformation. After the pull ring is installed, the pull ring can hoop the outer circumferential surface of the water pipe 220.

In some embodiments, the fixing cap 700 may be fixed to the housing 400 by a screw structure, the second sealing member 730 is mounted at the other end of the fixing cap 700, and finally the fixing cap 700 may be fixed to the water distributing member 100 by a fastening position. The second sealing member 730 prevents the washing water from entering the supporter 600, and the washing water is contaminated, and after a long time, the inner surface of the casing 400 of the supporter 600 may be deposited with slag, which may affect the rotation of the glass ball of the supporter 600, and thus the reliability of the supporter 600 may be degraded. Meanwhile, the fixing cover 700 is added to prevent the water pipe 220 from shaking, so that the reliability and the service life of the water pipe 220 are improved.

Specifically, the rotational axis of the water flow pipe 220 extends in the axial direction of the water flow pipe 220. In other words, the rotation axis of the water passing pipe 220 extends in the length direction of the water passing pipe 220, i.e., the water passing pipe 220 rotates along the central axis thereof. So that the nozzle 2 can be driven to rotate along the axial direction of the water pipe 220 by the water pipe 220.

More specifically, the nozzle 2 can rotate along its central axis, that is, the rotation axis of the nozzle 2 extends along the length direction of the nozzle 2, one end of the nozzle 2 in the length direction is connected with one end of the water pipe 220, the water pipe 220 drives the nozzle 2 to rotate together, and the rotation axis of the nozzle 2 coincides with the rotation axis of the water pipe 220.

For example, the water pipe 220 is a circular pipe, the axial direction of the water pipe 220 is arranged along the front-rear direction, and the rotation axis of the water pipe 220 also extends along the front-rear direction. The spray pipe 2 is a circular pipe, the axial direction of the spray pipe 2 is arranged along the front-back direction, and the rotation axis of the spray pipe 2 also extends along the front-back direction. The rear end of the axial direction of the spray pipe 2 is connected with the front end of the water passing pipe 220, the water passing pipe 220 drives the spray pipe 2 to synchronously rotate, and the rotation axis of the spray pipe 2 is superposed with the rotation axis of the water passing pipe 220.

Optionally, as shown in fig. 3, the water inlet structure 1 further includes a driving member 210, and the driving member 210 is used for driving the water pipe 220 to rotate. Further, the driving member 210 may be a gear member, the water pipe 220 penetrates through the middle portion of the driving member 210 and is integrally formed with the driving member 210, and the water pipe 220 may include a first pipe section located at one side of the driving member 210 and adapted to be matched with the water distributing member 100, and a second pipe section located at the other side of the driving member 210 and adapted to be in transmission connection with the nozzle 2. Therefore, the water passing pipe 220 is communicated with the water distribution piece 100 and the spray pipe 2 respectively in a water way, the water passing pipe 220 can reliably rotate, and the transmission reliability and stability of the water passing pipe 220 are improved.

For example, the water pipe 220 and the driving member 210 may be integrally formed as the gear member 200, the driving member 210 may be formed as a gear structure having meshing teeth, the water pipe 220 may be disposed in the middle of the gear structure and penetrate through the gear structure, the water pipe 220 includes a first pipe section and a second pipe section, the first pipe section is located at the rear side of the gear close to the water distributing member 100 and is rotatably connected with the water distributing member 100, and the second pipe section is located at the front side of the gear close to the nozzle 2 and is fixedly connected with the nozzle 2. Therefore, the water passing pipe 220 is communicated with the water distribution piece 100 and the spray pipe 2 respectively in a water way, the water passing pipe 220 can reliably rotate, and the transmission reliability and stability of the water passing pipe 220 are improved.

In some embodiments, as shown in fig. 1, the water inlet structure 1 further includes a driving motor and a transmission member 300, and the transmission member 300 is in transmission connection with the driving motor and the driving member 210, respectively. Therefore, the driving member 300 can be driven to rotate by the driving motor, and then the driving member 300 transmits power to the water pipe 220, so that the water pipe 220 can drive the nozzle 2 to rotate.

Specifically, transmission member 300 is in driving connection with the motor shaft of the driving motor, driving member 210 is provided with a first mating tooth, and transmission member 300 is provided with a second mating tooth adapted to engage with the first mating tooth. Therefore, the tooth meshing transmission between the transmission piece 300 and the driving piece 210 can be realized, the transmission efficiency and the transmission reliability between the driving piece 210 and the transmission piece 300 are improved, and the condition of transmission delay in the transmission process is prevented.

For example, the water inlet structure 1 may include a driving motor, a driving member 300, a driving member 210 and a water pipe 220, the driving member 300 may be formed as a driving gear member, the driving member 210 may be formed as a driven gear member, the driving gear member is fixedly connected to a motor shaft of the driving motor, so that the driving gear member may rotate synchronously with the motor shaft, a second mating tooth of the driving gear member may be engaged with a first mating tooth of the driven gear member for transmission, so that the driving gear member may drive the driven gear member to rotate.

In some embodiments, as shown in FIG. 3, the housing 400 is fixedly disposed within a washing chamber of a dishwasher. The housing 400 has a mounting through-hole 401 penetrating through the thickness direction of the housing 400, and the water feed pipe 220 is adapted to be fitted in contact with the water distribution member 100 through the mounting through-hole 401. The clamping member 500 is in clamping fit with the water pipe 220 and in contact fit with the housing 400. Can utilize shell 400 to support water pipe 220 like this, the installation setting of water pipe 220 of being convenient for can also utilize water distribution part 100 and joint piece 500 to carry on spacingly to water pipe 220 jointly, avoids water pipe 220 to appear removing in its axial, guarantees water pipe 220's the reliability that sets up.

For example, the water pipe 220 is rotatable with respect to the water distribution member 100 and the housing 400. Specifically, the housing 400 may be formed with a mounting through-hole 401, and one end of the water passing pipe 220 near the water distribution member 100 passes through the mounting through-hole 401 to be in contact fit with the water distribution member 100, so as to limit the axial direction of the water passing pipe 220 and prevent the water passing pipe 220 from moving backwards. Joint 500 and water pipe 220 joint cooperation, joint 500 and shell 400 contact cooperation to carry on spacingly to the axial of water pipe 220, prevent that water pipe 220 from moving forward and break away from the cooperation with water distribution 100. Can utilize shell 400 to support water pipe 220 like this, the installation setting of water pipe 220 of being convenient for can also utilize water distribution part 100 and joint piece 500 to carry on spacingly to water pipe 220 jointly, avoids water pipe 220 to appear removing in its axial, guarantees water pipe 220's the reliability that sets up.

Alternatively, as shown in fig. 2, the housing 400 has a fitting groove 402, and the support 600 is adapted to be detachably fitted in the fitting groove 402 and to be fitted over the outer side of the water passing pipe 220. Thus, the rotational friction of the water pipe 220 can be reduced by using the supporting member 600, the abrasion of the water pipe 220 can be reduced, and the transmission efficiency and the transmission precision can be improved.

For example, the housing 400 is provided with a fitting groove 402 at the mounting opening 401, the fitting groove 402 is disposed around the mounting opening 401, the support member 600 is detachably fitted in the fitting groove 402, and the water passing pipe 220 is rotatably inserted in the support member 600. Thus, the rotational friction of the water pipe 220 can be reduced by using the supporting member 600, the abrasion of the water pipe 220 can be reduced, and the transmission efficiency and the transmission precision can be improved.

Further, as shown in fig. 2, a side of the fitting groove 402 facing the water distribution member 100 has an opening to facilitate installation of the support member 600, and the clip member 500 is in contact fitting with an edge of the fitting groove 402 to facilitate the limit of the clip member 500 by the housing 400. Not only can utilize joint spare 500 to carry on spacingly to the axial displacement of water pipe 220 like this, improve the positioning reliability of water pipe 220, can utilize joint spare 500 to carry on spacingly to support piece 600 moreover, prevent that support piece 600 from deviating from in the cooperation groove 402.

For example, the fitting groove 402 has an opening toward the rear side of the water distribution member 100, so that the support member 600 is installed and disposed through the opening, and the radially outer edge of the clamping member 500 is in contact fitting with the edge of the fitting groove 402, so that the clamping member 500 is limited by the housing 400, and the water passing pipe 220 is axially limited. Not only can utilize joint spare 500 to carry on spacingly to the axial displacement of water pipe 220 like this, improve the positioning reliability of water pipe 220, can utilize joint spare 500 to carry on spacingly to support piece 600 moreover, prevent that support piece 600 from deviating from in the cooperation groove 402.

In some embodiments, as shown in fig. 3, the water distribution member 100 may include a first water inlet pipe section 140 and a second water inlet pipe section 150, the first water inlet pipe section 140 and the second water inlet pipe section 150 respectively have respective water inlet passages 101, two water pipes 220 are provided, and the two water pipes 220 are respectively connected with the first water inlet pipe section 140 and the second water inlet pipe section 150 in a matching manner. Thus, water can be supplied to the two water passing pipes 220 through one water distribution member 100, which further facilitates the improvement of the integration level of the water inlet structure 1, and makes the internal structure of the washing machine more compact.

For example, the water distribution member 100 may include a first water inlet pipe segment 140 and a second water inlet pipe segment 150, the first water inlet pipe segment 140 having the water inlet passage 101, and the second water inlet pipe segment 150 having the water inlet passage 101. The number of the water pipes 220 may be two, the two water pipes 220 are respectively disposed at the left and right sides of the transmission member 300, and the transmission member 300 may drive the two water pipes 220 to rotate simultaneously. One of the water pipes 220 is connected to the first water inlet pipe section 140, and the other water pipe 220 is connected to the second water inlet pipe section 150. The two water passing pipes 220 have a bilaterally symmetrical structure. Thus, water can be supplied to the two water passing pipes 220 through one water distribution member 100, which further facilitates the improvement of the integration level of the water inlet structure 1, and makes the internal structure of the washing machine more compact.

According to some embodiments of the utility model, the spray arm subassembly is a spray arm subassembly structure with slim type spray tube 2, and the spray arm subassembly can be including intaking structure 1 and spray tube 2, and spray tube 2 can be the pipe, and spray tube 2 can rotate along its self axis. Spray tube 2's rotation is carried out transmission control by driving motor, driving medium 300 and driving piece 210, and driving motor drive driving medium 300 rotates promptly, and driving piece 300 drives driving piece 210 and rotates, and driving piece 210 drives water pipe 220 and rotates, and water pipe 220 drives spray tube 2 and rotates.

The drive motor may be fitted within the cavity of the housing 400. The water inlet of the nozzle 2 is provided by the water distribution member 100 and the water passing pipe 220, and the water passing pipe 220 and the driving member 210 can be formed into an integrated driven gear member 200, that is, the water inlet flows through the water distribution member 100 and the driven gear member 200 in sequence and then enters the nozzle 2 to be sprayed. The other end of the driven gear part 200 is connected with the elongated nozzle 2, and the elongated nozzle 2 is fixedly connected to the driven gear part 200, so that the nozzle 2 can rotate synchronously with the driven gear part 200.

In assembling the water intake structure 1, first, two support members 600 may be respectively installed in the left and right housings of the housing 400, and the driven gear member is assembled with the support members 600 through the installation openings 401 of the housing 400. Then, the snap member 500 can be snapped on the driven gear member. This assembly forms a gear module. The first seal 130 can then be assembled into the dispenser 100 for securing, thus assembling to form a dispenser module. And finally, butting the assembled gear module with the water distribution module. The dishwasher may further include a back plate 33, and the housing 400 may be fixed on the back plate 33 of the dishwasher by screwing, so as to fix the whole water inlet structure 1.

Specifically, the clamping member 500 is used for pulling the water pipe 220 to prevent the water pipe 220 from falling off from the water distribution member 100 due to the impact of water, and the clamping member 500 may be made of stainless steel. The first sealing member 130 functions to prevent water from leaking from the connection of the water feed pipe 220 and the water dispenser 100. Wherein the support 600 may also be replaced by a circular ring structure of plastic. The other side of the driven gear member may abut against one end of the elongate nozzle 2 in the longitudinal direction.

According to a specific embodiment of the present invention, the water inlet structure 1 of the spray arm assembly can be applied to a dishwasher, and specifically, the water inlet structure 1 can be installed in a washing chamber of the dishwasher. The water intake structure 1 may include a water distribution member 100, a driving member 210, and a water passing pipe 220. The spray arm assembly may include a water distribution member 100, a water passing pipe 220, and a plurality of spray pipes 2, the water distribution member 100 may be fixedly installed in the dishwasher, and the water distribution member 100 may be used to supply water into the dishwasher. One end of the water distribution member 100 may be connected to an external water source and the other end may be connected to the water passing pipe 220 so that the water distribution member 100 can supply water to the water passing pipe 220. The water pipe 220 is rotatable relative to the water distribution member 100, that is, the water pipe 220 is rotatably provided in the dishwasher, and the water pipe 220 can drive the spray tube 2 to rotate together. The nozzle 2 is drivingly connected to the water conduit 220 and is in fluid communication with the water conduit 220. The inlet water of spray arm subassembly can flow in spray tube 2 after the water distribution piece 100, water pipe 220 are flowed through like this, and the orifice has been seted up to the pipe wall of spray tube 2, and the orifice is used for water jet, and spray tube 2 can wash the washing intracavity's tableware that waits to wash, and simultaneously, water pipe 220 can drive spray tube 2 and rotate to in the increase spray range of spray tube 2.

The water distribution member 100 of the water intake structure 1 may have a water intake passage 101 and a water inlet and a water outlet 102 connected to the water intake passage 101, and the water inlet may be connected to a tap of an external water source. The water pipe 220 can be used for driving the spray pipe 2 of the spray arm assembly to rotate, the water pipe 220 can rotate relative to the water distribution member 100, the water pipe 220 is provided with a water channel 201, one end of the water channel 201 is communicated with the water outlet 102, and the other end of the water channel 201 is connected with the spray pipe 2.

The side of the water distribution member 100 facing the water pipe 220 may have a first mating surface 110, the water outlet 102 may be formed on the first mating surface 110, the water pipe 220 may have a water pipe 220, an end surface of the water pipe 220 near one end of the water distribution member 100 may be in contact fit with the first mating surface 110, and the other end of the water pipe 220 may be in transmission connection with the nozzle 2. The water pipe 220 may be a circular pipe, and a water passage 201 with two open sides may be formed in the water pipe 220, so that the water pipe 220 can communicate with the water distribution member 100 and the nozzle 2, respectively.

First fitting surface 110 can be equipped with the cooperation sleeve 120 that extends towards water pipe 220, and cooperation sleeve 120 can include straight section of thick bamboo and the section that expands outward that links to each other with straight section of thick bamboo, and first sealing member 130 can be established in straight section of thick bamboo, and first sealing member 130 can form the sealing ring, and the sealing ring cover is established in the outside of water pipe 220, and the inner peripheral surface and the water pipe 220 of sealing ring can compress tightly the cooperation, and the outer peripheral face and the internal perisporium of straight section of thick bamboo of sealing ring can compress tightly the cooperation.

The water pipe 220 can be a driven gear part, the driven gear part can include a driving part 210 and a water pipe 220, the driving part 210 can be formed with driven teeth, the driving part 210 can be connected with a driving gear through matching teeth, the water pipe 220 penetrates through the middle part of the driving part 210, and a water passing channel 201 communicated with the water spraying pipe and the spraying pipe 2 is formed in the water pipe 220. The axis of rotation of the water conduit 220 may extend along the length of the water conduit 220.

The driving member 210 and the water pipe 220 may be an integrally formed gear member 200, the driving member 210 may be formed in a gear structure, the water pipe 220 is disposed in the middle of the gear and penetrates through the gear, the water pipe 220 may include a first pipe segment and a second pipe segment, the first pipe segment may be located on one side of the gear close to the water distribution member 100 and rotatably connected with the water distribution member 100, and the second pipe segment may be located on the other side of the gear close to the spray pipe 2 and fixedly connected with the spray pipe 2.

The water inlet structure 1 may include a driving motor, a driving member 300 and a water pipe 220, the driving member 300 may be formed as a driving gear member, the driving member 210 may be formed as a driven gear member, the driving gear member is fixedly connected to a motor shaft of the driving motor, and a second mating tooth of the driving gear member is engaged with a first mating tooth of the driven gear member for transmission.

The water inlet structure 1 may include a water distribution member 100 fixedly disposed in the washing chamber, a housing 400, and a water passing pipe 220 rotatable with respect to the water distribution member 100 and the housing 400, specifically, the housing 400 may have an installation through-hole 401, and one end of the water passing pipe 220 close to the water distribution member 100 passes through the installation through-hole 401 to be in contact fit with the water distribution member 100, so as to limit the axial direction of the water passing pipe 220 and prevent the water passing pipe 220 from moving toward the direction close to the water distribution member 100. Joint piece 500 and water pipe 220 joint cooperation, joint piece 500 and shell 400 contact cooperation to the realization is spacing to the axial of water pipe 220, prevents that water pipe 220 from removing to the direction of keeping away from water distribution 100.

The outer peripheral face of water pipe 220 can have annular joint groove 202, and joint spare 500 can be the annular cardboard, and the annular cardboard has the circumference breach, and the annular cardboard can take place elastic deformation. After the annular clamping plate is installed, the annular clamping plate can hoop the outer peripheral surface of the water passing pipe 220. Further, the radially inner end of the annular clamping plate is suitable for being matched in the clamping groove 202, and the radially outer end of the annular clamping plate is suitable for being in lap joint with the outer shell 400 so as to limit the axial direction of the water passing pipe 220.

The water inlet structure 1 may further include a support member 600, the housing 400 is provided with a fitting groove 402 around the mounting opening 401, and the water passing pipe 220 is rotatably inserted into the support member 600. The side of the fitting groove 402 facing the water distribution member 100 has an opening to facilitate the installation of the support member 600, and the clip member 500 is in contact fit with the edge of the fitting groove 402.

The water distribution member 100 may include a first water inlet pipe segment 140 and a second water inlet pipe segment 150, the first water inlet pipe segment 140 and the second water inlet pipe segment 150 respectively have a water inlet channel 101, there are two water passing pipes 220, the two water passing pipes 220 are respectively disposed at the left and right sides of the transmission member 300, and the transmission member 300 may drive the two water passing pipes 220 to synchronously rotate. One of the water conduits 220 may be connected to the first water inlet pipe section 140 and the other water conduit 220 may be connected to the second water inlet pipe section 150. The two water passing pipes 220 are symmetrical in structure.

A spray arm assembly for a household appliance according to an embodiment of the present invention is described below. According to the utility model discloses domestic appliance's spray arm subassembly includes into water structure 1 and spray tube 2, and it is according to advance water structure 1 the utility model discloses the spray arm subassembly of above-mentioned embodiment advances water structure 1. The spray pipe 2 is fixedly connected with the water passing pipe 220, the rotation axis of the spray pipe 2 is parallel to the axis of the spray pipe 2, the spray pipe 2 is provided with a water passing cavity 21, and the water passing cavity 21 is communicated with the water passing channel 201.

For example, the household appliance may be a dishwasher, a steam sterilizer, a laundry treatment apparatus, and the like.

In particular, the dishwasher may include a tub assembly 3, a washing chamber being formed in the tub assembly 3. The spray pipes 2 can be transversely arranged and fixed in the washing cavity and also can be longitudinally arranged and fixed. Meanwhile, the nozzle 2 may rotate along its axis, the nozzle 2 is driven to rotate by the driving module, the driving module may include a driving motor and a gear transmission mechanism, the gear transmission mechanism may include a driving part 210 and a transmission part 300, the transmission part 300 may be formed as a driving gear part, the driving part 210 may be formed as a driven gear part, and the driving gear part is fixedly connected to a motor shaft of the driving motor to rotate together with the motor shaft. The driving module can be installed and fixed in the washing cavity by screwing or adopting a threaded structure.

Alternatively, the elongated nozzles 2 may be fixed in the washing chamber in a transverse arrangement or in a longitudinal arrangement. The washing chamber is provided with a first fixing member 31 and a second fixing member 32, and the elongated nozzle 2 may be previously fixed between the first fixing member 31 and the second fixing member 32. The first fixing member 31, the second fixing member 32 and the elongated spout 2 are then fitted into the washing chamber. Wherein, the first fixing member 31 and the second fixing member 32 can be fixed in the washing chamber by screwing.

The elongated nozzle 2 may be secured to the water conduit 220 by a retaining buckle 23 and a retaining ring 22. Specifically, the fixing ring 22, the sealing ring 24 and the fixing buckle 23 may be sequentially mounted on the slender nozzle 2, the outer circumferential surface of the nozzle 2 may be provided with a first mating hole, the inner circumferential surface of the fixing buckle 23 may be provided with a first mating protrusion, and the first mating protrusion may be clamped in the first mating hole. And then the slender nozzle 2 is arranged on the water passing pipe 220, the outer peripheral surface of the water passing pipe 220 can be provided with a second matching bulge, the inner peripheral surface of the fixing ring 22 can be provided with a second matching hole, and the fixing ring 22 and the water passing pipe 220 are fixed in a hanging and buckling matching mode, so that the slender nozzle 2 is prevented from falling off.

Specifically, the dishwasher may include a back plate 33 and an externally threaded cover 34. The driving module may be fixedly connected to the back plate 33 by a screw fixing method. Specifically, the internal threads of the drive module may be secured in engagement with an externally threaded cap 34 on the rear of the back plate 33. First, the drive module can be fitted into the circular hole of the back plate 33, and then the externally threaded cap 34 is screwed with the drive module behind the back plate 33. This allows the drive module to be secured to the back plate 33.

According to the utility model discloses domestic appliance's spray arm subassembly, through utilizing according to the utility model discloses the inlet structure 1 of the spray arm subassembly of above-mentioned embodiment, inlet structure 1 can advance to spray tube 2 through water pipe 220 and drive spray tube 2 and rotate, has advantages such as compact structure is reliable.

A dishwasher according to an embodiment of the present invention is described below. The dishwasher according to the embodiment of the present invention includes the spray arm assembly of the household appliance according to the above embodiment of the present invention.

According to the utility model discloses dish washer, through utilizing according to the utility model discloses domestic appliance's spray arm subassembly of above-mentioned embodiment, water inlet structure 1 can be through the water pipe 220 to spray tube 2 intake and drive spray tube 2 and rotate, has advantages such as compact structure is reliable.

Other constructions and operations of the dishwasher according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (16)

1. A water intake structure of a spray arm assembly, comprising:

the water distribution piece is provided with a water inlet channel and a water outlet connected with the water inlet channel;

the water passing pipe is provided with a water passing channel which is communicated with the water outlet, and the water passing pipe can rotate relative to the water distribution piece;

the water distribution piece is provided with a water distribution hole, and the water distribution piece is matched with the water distribution hole;

the supporting piece is matched in the matching groove, and the water passing pipe is rotatably arranged in the supporting piece in a penetrating way;

the joint spare, the joint spare with the cooperation of water pipe joint, the joint spare is used for right the water pipe with support piece carries on spacingly.

2. The spray arm assembly as claimed in claim 1, wherein the clamping member limits the flow pipe and the support member in an axial direction of the flow pipe.

3. The water inlet structure of the spray arm assembly according to claim 1, wherein a clamping groove is formed in the outer peripheral surface of the water passing pipe, the clamping piece is sleeved on the outer peripheral wall of the water passing pipe and provided with a clamping protrusion, and the clamping protrusion is suitable for being matched in the clamping groove to limit the water passing pipe to move in a direction away from the water distribution piece.

4. The water intake structure of the spray arm assembly as claimed in claim 1, wherein the snap-in member is in contact engagement with an end surface of the support member facing the water distribution member to restrict the support member from being disengaged from the engagement groove.

5. The water intake structure of the spray arm assembly as claimed in claim 1, wherein the water distribution member has a first mating surface, the water outlet is formed on the first mating surface, and one end of the water pipe in the axial direction is in contact mating with the first mating surface.

6. The spray arm assembly water inlet structure according to claim 5, wherein the first fitting surface is provided with a fitting sleeve extending toward the water passing pipe, and a first sealing member is provided between an inner peripheral wall of the fitting sleeve and the water passing pipe.

7. The spray arm assembly water inlet structure according to claim 3, wherein the clamping member is a ring-shaped clamping plate, one side of the matching groove facing the water distribution member is provided with an opening, the inner end of the ring-shaped clamping plate is formed into the clamping protrusion, and the outer end of the ring-shaped clamping plate is suitable for being in contact fit with the shell.

8. The water intake structure of the spray arm assembly of claim 1, further comprising: the fixed cover is fixedly connected with the water distribution piece and the shell respectively, the fixed cover is provided with a limiting hole, and the water passing pipe penetrates through the limiting hole.

9. The spray arm assembly water inlet structure according to claim 8, wherein the fixing cover, the housing and the water pipe define a mounting cavity, and the clamping member is arranged in the mounting cavity.

10. The water intake structure of the spray arm assembly of claim 9, wherein a second sealing member is disposed in the mounting cavity, the second sealing member is clamped between the water pipe and the fixing cover, the fixing cover has a receiving groove, a third sealing member is disposed in the receiving groove, and the third sealing member is clamped between the fixing cover and the water distribution member.

11. The water inlet structure of the spray arm assembly as claimed in claim 3, wherein the clamping member is a pull ring, the pull ring is provided with a limit boss, the outer circumferential surface of the water pipe is provided with a limit matching boss matched with the limit boss, and the limit boss and the clamping protrusion are arranged at an interval in the axial direction of the pull ring.

12. The spray arm assembly water intake structure of claim 1, wherein the axis of rotation of the water conduit extends in the axial direction of the water conduit, the water intake structure further comprising: the driving piece is used for driving the water passing pipe to rotate.

13. The spray arm assembly as claimed in claim 12, wherein the driving member is a gear member, the water pipe extends through a middle portion of the driving member and is integrally formed with the driving member, the water pipe includes a first pipe section and a second pipe section, the first pipe section is located at one side of the driving member and is engaged with the water distribution member, and the second pipe section is located at the other side of the driving member.

14. The spray arm assembly water intake structure of claim 1, wherein the support is a ball bearing.

15. A spray arm assembly for a household appliance, comprising:

a water intake structure of the spray arm assembly of any one of claims 1-14;

the spray pipe, the spray pipe with water pipe fixed connection, the axis of rotation of spray pipe is on a parallel with the axis of spray pipe, the spray pipe has the cavity of crossing water, cross the cavity of water with water channel intercommunication.

16. A dishwasher, characterized by comprising a spray arm assembly of a household appliance according to claim 15.

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